| /****************************************************************************** |
| |
| Copyright(c) 2003 - 2006 Intel Corporation. All rights reserved. |
| |
| 802.11 status code portion of this file from ethereal-0.10.6: |
| Copyright 2000, Axis Communications AB |
| Ethereal - Network traffic analyzer |
| By Gerald Combs <gerald@ethereal.com> |
| Copyright 1998 Gerald Combs |
| |
| This program is free software; you can redistribute it and/or modify it |
| under the terms of version 2 of the GNU General Public License as |
| published by the Free Software Foundation. |
| |
| This program is distributed in the hope that it will be useful, but WITHOUT |
| ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| more details. |
| |
| You should have received a copy of the GNU General Public License along with |
| this program; if not, write to the Free Software Foundation, Inc., 59 |
| Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| |
| The full GNU General Public License is included in this distribution in the |
| file called LICENSE. |
| |
| Contact Information: |
| Intel Linux Wireless <ilw@linux.intel.com> |
| Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
| |
| ******************************************************************************/ |
| |
| #include <linux/sched.h> |
| #include <linux/slab.h> |
| #include <net/cfg80211-wext.h> |
| #include "ipw2200.h" |
| #include "ipw.h" |
| |
| |
| #ifndef KBUILD_EXTMOD |
| #define VK "k" |
| #else |
| #define VK |
| #endif |
| |
| #ifdef CONFIG_IPW2200_DEBUG |
| #define VD "d" |
| #else |
| #define VD |
| #endif |
| |
| #ifdef CONFIG_IPW2200_MONITOR |
| #define VM "m" |
| #else |
| #define VM |
| #endif |
| |
| #ifdef CONFIG_IPW2200_PROMISCUOUS |
| #define VP "p" |
| #else |
| #define VP |
| #endif |
| |
| #ifdef CONFIG_IPW2200_RADIOTAP |
| #define VR "r" |
| #else |
| #define VR |
| #endif |
| |
| #ifdef CONFIG_IPW2200_QOS |
| #define VQ "q" |
| #else |
| #define VQ |
| #endif |
| |
| #define IPW2200_VERSION "1.2.2" VK VD VM VP VR VQ |
| #define DRV_DESCRIPTION "Intel(R) PRO/Wireless 2200/2915 Network Driver" |
| #define DRV_COPYRIGHT "Copyright(c) 2003-2006 Intel Corporation" |
| #define DRV_VERSION IPW2200_VERSION |
| |
| #define ETH_P_80211_STATS (ETH_P_80211_RAW + 1) |
| |
| MODULE_DESCRIPTION(DRV_DESCRIPTION); |
| MODULE_VERSION(DRV_VERSION); |
| MODULE_AUTHOR(DRV_COPYRIGHT); |
| MODULE_LICENSE("GPL"); |
| MODULE_FIRMWARE("ipw2200-ibss.fw"); |
| #ifdef CONFIG_IPW2200_MONITOR |
| MODULE_FIRMWARE("ipw2200-sniffer.fw"); |
| #endif |
| MODULE_FIRMWARE("ipw2200-bss.fw"); |
| |
| static int cmdlog = 0; |
| static int debug = 0; |
| static int default_channel = 0; |
| static int network_mode = 0; |
| |
| static u32 ipw_debug_level; |
| static int associate; |
| static int auto_create = 1; |
| static int led_support = 1; |
| static int disable = 0; |
| static int bt_coexist = 0; |
| static int hwcrypto = 0; |
| static int roaming = 1; |
| static const char ipw_modes[] = { |
| 'a', 'b', 'g', '?' |
| }; |
| static int antenna = CFG_SYS_ANTENNA_BOTH; |
| |
| #ifdef CONFIG_IPW2200_PROMISCUOUS |
| static int rtap_iface = 0; /* def: 0 -- do not create rtap interface */ |
| #endif |
| |
| static struct ieee80211_rate ipw2200_rates[] = { |
| { .bitrate = 10 }, |
| { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, |
| { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, |
| { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, |
| { .bitrate = 60 }, |
| { .bitrate = 90 }, |
| { .bitrate = 120 }, |
| { .bitrate = 180 }, |
| { .bitrate = 240 }, |
| { .bitrate = 360 }, |
| { .bitrate = 480 }, |
| { .bitrate = 540 } |
| }; |
| |
| #define ipw2200_a_rates (ipw2200_rates + 4) |
| #define ipw2200_num_a_rates 8 |
| #define ipw2200_bg_rates (ipw2200_rates + 0) |
| #define ipw2200_num_bg_rates 12 |
| |
| /* Ugly macro to convert literal channel numbers into their mhz equivalents |
| * There are certianly some conditions that will break this (like feeding it '30') |
| * but they shouldn't arise since nothing talks on channel 30. */ |
| #define ieee80211chan2mhz(x) \ |
| (((x) <= 14) ? \ |
| (((x) == 14) ? 2484 : ((x) * 5) + 2407) : \ |
| ((x) + 1000) * 5) |
| |
| #ifdef CONFIG_IPW2200_QOS |
| static int qos_enable = 0; |
| static int qos_burst_enable = 0; |
| static int qos_no_ack_mask = 0; |
| static int burst_duration_CCK = 0; |
| static int burst_duration_OFDM = 0; |
| |
| static struct libipw_qos_parameters def_qos_parameters_OFDM = { |
| {QOS_TX0_CW_MIN_OFDM, QOS_TX1_CW_MIN_OFDM, QOS_TX2_CW_MIN_OFDM, |
| QOS_TX3_CW_MIN_OFDM}, |
| {QOS_TX0_CW_MAX_OFDM, QOS_TX1_CW_MAX_OFDM, QOS_TX2_CW_MAX_OFDM, |
| QOS_TX3_CW_MAX_OFDM}, |
| {QOS_TX0_AIFS, QOS_TX1_AIFS, QOS_TX2_AIFS, QOS_TX3_AIFS}, |
| {QOS_TX0_ACM, QOS_TX1_ACM, QOS_TX2_ACM, QOS_TX3_ACM}, |
| {QOS_TX0_TXOP_LIMIT_OFDM, QOS_TX1_TXOP_LIMIT_OFDM, |
| QOS_TX2_TXOP_LIMIT_OFDM, QOS_TX3_TXOP_LIMIT_OFDM} |
| }; |
| |
| static struct libipw_qos_parameters def_qos_parameters_CCK = { |
| {QOS_TX0_CW_MIN_CCK, QOS_TX1_CW_MIN_CCK, QOS_TX2_CW_MIN_CCK, |
| QOS_TX3_CW_MIN_CCK}, |
| {QOS_TX0_CW_MAX_CCK, QOS_TX1_CW_MAX_CCK, QOS_TX2_CW_MAX_CCK, |
| QOS_TX3_CW_MAX_CCK}, |
| {QOS_TX0_AIFS, QOS_TX1_AIFS, QOS_TX2_AIFS, QOS_TX3_AIFS}, |
| {QOS_TX0_ACM, QOS_TX1_ACM, QOS_TX2_ACM, QOS_TX3_ACM}, |
| {QOS_TX0_TXOP_LIMIT_CCK, QOS_TX1_TXOP_LIMIT_CCK, QOS_TX2_TXOP_LIMIT_CCK, |
| QOS_TX3_TXOP_LIMIT_CCK} |
| }; |
| |
| static struct libipw_qos_parameters def_parameters_OFDM = { |
| {DEF_TX0_CW_MIN_OFDM, DEF_TX1_CW_MIN_OFDM, DEF_TX2_CW_MIN_OFDM, |
| DEF_TX3_CW_MIN_OFDM}, |
| {DEF_TX0_CW_MAX_OFDM, DEF_TX1_CW_MAX_OFDM, DEF_TX2_CW_MAX_OFDM, |
| DEF_TX3_CW_MAX_OFDM}, |
| {DEF_TX0_AIFS, DEF_TX1_AIFS, DEF_TX2_AIFS, DEF_TX3_AIFS}, |
| {DEF_TX0_ACM, DEF_TX1_ACM, DEF_TX2_ACM, DEF_TX3_ACM}, |
| {DEF_TX0_TXOP_LIMIT_OFDM, DEF_TX1_TXOP_LIMIT_OFDM, |
| DEF_TX2_TXOP_LIMIT_OFDM, DEF_TX3_TXOP_LIMIT_OFDM} |
| }; |
| |
| static struct libipw_qos_parameters def_parameters_CCK = { |
| {DEF_TX0_CW_MIN_CCK, DEF_TX1_CW_MIN_CCK, DEF_TX2_CW_MIN_CCK, |
| DEF_TX3_CW_MIN_CCK}, |
| {DEF_TX0_CW_MAX_CCK, DEF_TX1_CW_MAX_CCK, DEF_TX2_CW_MAX_CCK, |
| DEF_TX3_CW_MAX_CCK}, |
| {DEF_TX0_AIFS, DEF_TX1_AIFS, DEF_TX2_AIFS, DEF_TX3_AIFS}, |
| {DEF_TX0_ACM, DEF_TX1_ACM, DEF_TX2_ACM, DEF_TX3_ACM}, |
| {DEF_TX0_TXOP_LIMIT_CCK, DEF_TX1_TXOP_LIMIT_CCK, DEF_TX2_TXOP_LIMIT_CCK, |
| DEF_TX3_TXOP_LIMIT_CCK} |
| }; |
| |
| static u8 qos_oui[QOS_OUI_LEN] = { 0x00, 0x50, 0xF2 }; |
| |
| static int from_priority_to_tx_queue[] = { |
| IPW_TX_QUEUE_1, IPW_TX_QUEUE_2, IPW_TX_QUEUE_2, IPW_TX_QUEUE_1, |
| IPW_TX_QUEUE_3, IPW_TX_QUEUE_3, IPW_TX_QUEUE_4, IPW_TX_QUEUE_4 |
| }; |
| |
| static u32 ipw_qos_get_burst_duration(struct ipw_priv *priv); |
| |
| static int ipw_send_qos_params_command(struct ipw_priv *priv, struct libipw_qos_parameters |
| *qos_param); |
| static int ipw_send_qos_info_command(struct ipw_priv *priv, struct libipw_qos_information_element |
| *qos_param); |
| #endif /* CONFIG_IPW2200_QOS */ |
| |
| static struct iw_statistics *ipw_get_wireless_stats(struct net_device *dev); |
| static void ipw_remove_current_network(struct ipw_priv *priv); |
| static void ipw_rx(struct ipw_priv *priv); |
| static int ipw_queue_tx_reclaim(struct ipw_priv *priv, |
| struct clx2_tx_queue *txq, int qindex); |
| static int ipw_queue_reset(struct ipw_priv *priv); |
| |
| static int ipw_queue_tx_hcmd(struct ipw_priv *priv, int hcmd, void *buf, |
| int len, int sync); |
| |
| static void ipw_tx_queue_free(struct ipw_priv *); |
| |
| static struct ipw_rx_queue *ipw_rx_queue_alloc(struct ipw_priv *); |
| static void ipw_rx_queue_free(struct ipw_priv *, struct ipw_rx_queue *); |
| static void ipw_rx_queue_replenish(void *); |
| static int ipw_up(struct ipw_priv *); |
| static void ipw_bg_up(struct work_struct *work); |
| static void ipw_down(struct ipw_priv *); |
| static void ipw_bg_down(struct work_struct *work); |
| static int ipw_config(struct ipw_priv *); |
| static int init_supported_rates(struct ipw_priv *priv, |
| struct ipw_supported_rates *prates); |
| static void ipw_set_hwcrypto_keys(struct ipw_priv *); |
| static void ipw_send_wep_keys(struct ipw_priv *, int); |
| |
| static int snprint_line(char *buf, size_t count, |
| const u8 * data, u32 len, u32 ofs) |
| { |
| int out, i, j, l; |
| char c; |
| |
| out = snprintf(buf, count, "%08X", ofs); |
| |
| for (l = 0, i = 0; i < 2; i++) { |
| out += snprintf(buf + out, count - out, " "); |
| for (j = 0; j < 8 && l < len; j++, l++) |
| out += snprintf(buf + out, count - out, "%02X ", |
| data[(i * 8 + j)]); |
| for (; j < 8; j++) |
| out += snprintf(buf + out, count - out, " "); |
| } |
| |
| out += snprintf(buf + out, count - out, " "); |
| for (l = 0, i = 0; i < 2; i++) { |
| out += snprintf(buf + out, count - out, " "); |
| for (j = 0; j < 8 && l < len; j++, l++) { |
| c = data[(i * 8 + j)]; |
| if (!isascii(c) || !isprint(c)) |
| c = '.'; |
| |
| out += snprintf(buf + out, count - out, "%c", c); |
| } |
| |
| for (; j < 8; j++) |
| out += snprintf(buf + out, count - out, " "); |
| } |
| |
| return out; |
| } |
| |
| static void printk_buf(int level, const u8 * data, u32 len) |
| { |
| char line[81]; |
| u32 ofs = 0; |
| if (!(ipw_debug_level & level)) |
| return; |
| |
| while (len) { |
| snprint_line(line, sizeof(line), &data[ofs], |
| min(len, 16U), ofs); |
| printk(KERN_DEBUG "%s\n", line); |
| ofs += 16; |
| len -= min(len, 16U); |
| } |
| } |
| |
| static int snprintk_buf(u8 * output, size_t size, const u8 * data, size_t len) |
| { |
| size_t out = size; |
| u32 ofs = 0; |
| int total = 0; |
| |
| while (size && len) { |
| out = snprint_line(output, size, &data[ofs], |
| min_t(size_t, len, 16U), ofs); |
| |
| ofs += 16; |
| output += out; |
| size -= out; |
| len -= min_t(size_t, len, 16U); |
| total += out; |
| } |
| return total; |
| } |
| |
| /* alias for 32-bit indirect read (for SRAM/reg above 4K), with debug wrapper */ |
| static u32 _ipw_read_reg32(struct ipw_priv *priv, u32 reg); |
| #define ipw_read_reg32(a, b) _ipw_read_reg32(a, b) |
| |
| /* alias for 8-bit indirect read (for SRAM/reg above 4K), with debug wrapper */ |
| static u8 _ipw_read_reg8(struct ipw_priv *ipw, u32 reg); |
| #define ipw_read_reg8(a, b) _ipw_read_reg8(a, b) |
| |
| /* 8-bit indirect write (for SRAM/reg above 4K), with debug wrapper */ |
| static void _ipw_write_reg8(struct ipw_priv *priv, u32 reg, u8 value); |
| static inline void ipw_write_reg8(struct ipw_priv *a, u32 b, u8 c) |
| { |
| IPW_DEBUG_IO("%s %d: write_indirect8(0x%08X, 0x%08X)\n", __FILE__, |
| __LINE__, (u32) (b), (u32) (c)); |
| _ipw_write_reg8(a, b, c); |
| } |
| |
| /* 16-bit indirect write (for SRAM/reg above 4K), with debug wrapper */ |
| static void _ipw_write_reg16(struct ipw_priv *priv, u32 reg, u16 value); |
| static inline void ipw_write_reg16(struct ipw_priv *a, u32 b, u16 c) |
| { |
| IPW_DEBUG_IO("%s %d: write_indirect16(0x%08X, 0x%08X)\n", __FILE__, |
| __LINE__, (u32) (b), (u32) (c)); |
| _ipw_write_reg16(a, b, c); |
| } |
| |
| /* 32-bit indirect write (for SRAM/reg above 4K), with debug wrapper */ |
| static void _ipw_write_reg32(struct ipw_priv *priv, u32 reg, u32 value); |
| static inline void ipw_write_reg32(struct ipw_priv *a, u32 b, u32 c) |
| { |
| IPW_DEBUG_IO("%s %d: write_indirect32(0x%08X, 0x%08X)\n", __FILE__, |
| __LINE__, (u32) (b), (u32) (c)); |
| _ipw_write_reg32(a, b, c); |
| } |
| |
| /* 8-bit direct write (low 4K) */ |
| static inline void _ipw_write8(struct ipw_priv *ipw, unsigned long ofs, |
| u8 val) |
| { |
| writeb(val, ipw->hw_base + ofs); |
| } |
| |
| /* 8-bit direct write (for low 4K of SRAM/regs), with debug wrapper */ |
| #define ipw_write8(ipw, ofs, val) do { \ |
| IPW_DEBUG_IO("%s %d: write_direct8(0x%08X, 0x%08X)\n", __FILE__, \ |
| __LINE__, (u32)(ofs), (u32)(val)); \ |
| _ipw_write8(ipw, ofs, val); \ |
| } while (0) |
| |
| /* 16-bit direct write (low 4K) */ |
| static inline void _ipw_write16(struct ipw_priv *ipw, unsigned long ofs, |
| u16 val) |
| { |
| writew(val, ipw->hw_base + ofs); |
| } |
| |
| /* 16-bit direct write (for low 4K of SRAM/regs), with debug wrapper */ |
| #define ipw_write16(ipw, ofs, val) do { \ |
| IPW_DEBUG_IO("%s %d: write_direct16(0x%08X, 0x%08X)\n", __FILE__, \ |
| __LINE__, (u32)(ofs), (u32)(val)); \ |
| _ipw_write16(ipw, ofs, val); \ |
| } while (0) |
| |
| /* 32-bit direct write (low 4K) */ |
| static inline void _ipw_write32(struct ipw_priv *ipw, unsigned long ofs, |
| u32 val) |
| { |
| writel(val, ipw->hw_base + ofs); |
| } |
| |
| /* 32-bit direct write (for low 4K of SRAM/regs), with debug wrapper */ |
| #define ipw_write32(ipw, ofs, val) do { \ |
| IPW_DEBUG_IO("%s %d: write_direct32(0x%08X, 0x%08X)\n", __FILE__, \ |
| __LINE__, (u32)(ofs), (u32)(val)); \ |
| _ipw_write32(ipw, ofs, val); \ |
| } while (0) |
| |
| /* 8-bit direct read (low 4K) */ |
| static inline u8 _ipw_read8(struct ipw_priv *ipw, unsigned long ofs) |
| { |
| return readb(ipw->hw_base + ofs); |
| } |
| |
| /* alias to 8-bit direct read (low 4K of SRAM/regs), with debug wrapper */ |
| #define ipw_read8(ipw, ofs) ({ \ |
| IPW_DEBUG_IO("%s %d: read_direct8(0x%08X)\n", __FILE__, __LINE__, \ |
| (u32)(ofs)); \ |
| _ipw_read8(ipw, ofs); \ |
| }) |
| |
| /* 16-bit direct read (low 4K) */ |
| static inline u16 _ipw_read16(struct ipw_priv *ipw, unsigned long ofs) |
| { |
| return readw(ipw->hw_base + ofs); |
| } |
| |
| /* alias to 16-bit direct read (low 4K of SRAM/regs), with debug wrapper */ |
| #define ipw_read16(ipw, ofs) ({ \ |
| IPW_DEBUG_IO("%s %d: read_direct16(0x%08X)\n", __FILE__, __LINE__, \ |
| (u32)(ofs)); \ |
| _ipw_read16(ipw, ofs); \ |
| }) |
| |
| /* 32-bit direct read (low 4K) */ |
| static inline u32 _ipw_read32(struct ipw_priv *ipw, unsigned long ofs) |
| { |
| return readl(ipw->hw_base + ofs); |
| } |
| |
| /* alias to 32-bit direct read (low 4K of SRAM/regs), with debug wrapper */ |
| #define ipw_read32(ipw, ofs) ({ \ |
| IPW_DEBUG_IO("%s %d: read_direct32(0x%08X)\n", __FILE__, __LINE__, \ |
| (u32)(ofs)); \ |
| _ipw_read32(ipw, ofs); \ |
| }) |
| |
| static void _ipw_read_indirect(struct ipw_priv *, u32, u8 *, int); |
| /* alias to multi-byte read (SRAM/regs above 4K), with debug wrapper */ |
| #define ipw_read_indirect(a, b, c, d) ({ \ |
| IPW_DEBUG_IO("%s %d: read_indirect(0x%08X) %u bytes\n", __FILE__, \ |
| __LINE__, (u32)(b), (u32)(d)); \ |
| _ipw_read_indirect(a, b, c, d); \ |
| }) |
| |
| /* alias to multi-byte read (SRAM/regs above 4K), with debug wrapper */ |
| static void _ipw_write_indirect(struct ipw_priv *priv, u32 addr, u8 * data, |
| int num); |
| #define ipw_write_indirect(a, b, c, d) do { \ |
| IPW_DEBUG_IO("%s %d: write_indirect(0x%08X) %u bytes\n", __FILE__, \ |
| __LINE__, (u32)(b), (u32)(d)); \ |
| _ipw_write_indirect(a, b, c, d); \ |
| } while (0) |
| |
| /* 32-bit indirect write (above 4K) */ |
| static void _ipw_write_reg32(struct ipw_priv *priv, u32 reg, u32 value) |
| { |
| IPW_DEBUG_IO(" %p : reg = 0x%8X : value = 0x%8X\n", priv, reg, value); |
| _ipw_write32(priv, IPW_INDIRECT_ADDR, reg); |
| _ipw_write32(priv, IPW_INDIRECT_DATA, value); |
| } |
| |
| /* 8-bit indirect write (above 4K) */ |
| static void _ipw_write_reg8(struct ipw_priv *priv, u32 reg, u8 value) |
| { |
| u32 aligned_addr = reg & IPW_INDIRECT_ADDR_MASK; /* dword align */ |
| u32 dif_len = reg - aligned_addr; |
| |
| IPW_DEBUG_IO(" reg = 0x%8X : value = 0x%8X\n", reg, value); |
| _ipw_write32(priv, IPW_INDIRECT_ADDR, aligned_addr); |
| _ipw_write8(priv, IPW_INDIRECT_DATA + dif_len, value); |
| } |
| |
| /* 16-bit indirect write (above 4K) */ |
| static void _ipw_write_reg16(struct ipw_priv *priv, u32 reg, u16 value) |
| { |
| u32 aligned_addr = reg & IPW_INDIRECT_ADDR_MASK; /* dword align */ |
| u32 dif_len = (reg - aligned_addr) & (~0x1ul); |
| |
| IPW_DEBUG_IO(" reg = 0x%8X : value = 0x%8X\n", reg, value); |
| _ipw_write32(priv, IPW_INDIRECT_ADDR, aligned_addr); |
| _ipw_write16(priv, IPW_INDIRECT_DATA + dif_len, value); |
| } |
| |
| /* 8-bit indirect read (above 4K) */ |
| static u8 _ipw_read_reg8(struct ipw_priv *priv, u32 reg) |
| { |
| u32 word; |
| _ipw_write32(priv, IPW_INDIRECT_ADDR, reg & IPW_INDIRECT_ADDR_MASK); |
| IPW_DEBUG_IO(" reg = 0x%8X :\n", reg); |
| word = _ipw_read32(priv, IPW_INDIRECT_DATA); |
| return (word >> ((reg & 0x3) * 8)) & 0xff; |
| } |
| |
| /* 32-bit indirect read (above 4K) */ |
| static u32 _ipw_read_reg32(struct ipw_priv *priv, u32 reg) |
| { |
| u32 value; |
| |
| IPW_DEBUG_IO("%p : reg = 0x%08x\n", priv, reg); |
| |
| _ipw_write32(priv, IPW_INDIRECT_ADDR, reg); |
| value = _ipw_read32(priv, IPW_INDIRECT_DATA); |
| IPW_DEBUG_IO(" reg = 0x%4X : value = 0x%4x\n", reg, value); |
| return value; |
| } |
| |
| /* General purpose, no alignment requirement, iterative (multi-byte) read, */ |
| /* for area above 1st 4K of SRAM/reg space */ |
| static void _ipw_read_indirect(struct ipw_priv *priv, u32 addr, u8 * buf, |
| int num) |
| { |
| u32 aligned_addr = addr & IPW_INDIRECT_ADDR_MASK; /* dword align */ |
| u32 dif_len = addr - aligned_addr; |
| u32 i; |
| |
| IPW_DEBUG_IO("addr = %i, buf = %p, num = %i\n", addr, buf, num); |
| |
| if (num <= 0) { |
| return; |
| } |
| |
| /* Read the first dword (or portion) byte by byte */ |
| if (unlikely(dif_len)) { |
| _ipw_write32(priv, IPW_INDIRECT_ADDR, aligned_addr); |
| /* Start reading at aligned_addr + dif_len */ |
| for (i = dif_len; ((i < 4) && (num > 0)); i++, num--) |
| *buf++ = _ipw_read8(priv, IPW_INDIRECT_DATA + i); |
| aligned_addr += 4; |
| } |
| |
| /* Read all of the middle dwords as dwords, with auto-increment */ |
| _ipw_write32(priv, IPW_AUTOINC_ADDR, aligned_addr); |
| for (; num >= 4; buf += 4, aligned_addr += 4, num -= 4) |
| *(u32 *) buf = _ipw_read32(priv, IPW_AUTOINC_DATA); |
| |
| /* Read the last dword (or portion) byte by byte */ |
| if (unlikely(num)) { |
| _ipw_write32(priv, IPW_INDIRECT_ADDR, aligned_addr); |
| for (i = 0; num > 0; i++, num--) |
| *buf++ = ipw_read8(priv, IPW_INDIRECT_DATA + i); |
| } |
| } |
| |
| /* General purpose, no alignment requirement, iterative (multi-byte) write, */ |
| /* for area above 1st 4K of SRAM/reg space */ |
| static void _ipw_write_indirect(struct ipw_priv *priv, u32 addr, u8 * buf, |
| int num) |
| { |
| u32 aligned_addr = addr & IPW_INDIRECT_ADDR_MASK; /* dword align */ |
| u32 dif_len = addr - aligned_addr; |
| u32 i; |
| |
| IPW_DEBUG_IO("addr = %i, buf = %p, num = %i\n", addr, buf, num); |
| |
| if (num <= 0) { |
| return; |
| } |
| |
| /* Write the first dword (or portion) byte by byte */ |
| if (unlikely(dif_len)) { |
| _ipw_write32(priv, IPW_INDIRECT_ADDR, aligned_addr); |
| /* Start writing at aligned_addr + dif_len */ |
| for (i = dif_len; ((i < 4) && (num > 0)); i++, num--, buf++) |
| _ipw_write8(priv, IPW_INDIRECT_DATA + i, *buf); |
| aligned_addr += 4; |
| } |
| |
| /* Write all of the middle dwords as dwords, with auto-increment */ |
| _ipw_write32(priv, IPW_AUTOINC_ADDR, aligned_addr); |
| for (; num >= 4; buf += 4, aligned_addr += 4, num -= 4) |
| _ipw_write32(priv, IPW_AUTOINC_DATA, *(u32 *) buf); |
| |
| /* Write the last dword (or portion) byte by byte */ |
| if (unlikely(num)) { |
| _ipw_write32(priv, IPW_INDIRECT_ADDR, aligned_addr); |
| for (i = 0; num > 0; i++, num--, buf++) |
| _ipw_write8(priv, IPW_INDIRECT_DATA + i, *buf); |
| } |
| } |
| |
| /* General purpose, no alignment requirement, iterative (multi-byte) write, */ |
| /* for 1st 4K of SRAM/regs space */ |
| static void ipw_write_direct(struct ipw_priv *priv, u32 addr, void *buf, |
| int num) |
| { |
| memcpy_toio((priv->hw_base + addr), buf, num); |
| } |
| |
| /* Set bit(s) in low 4K of SRAM/regs */ |
| static inline void ipw_set_bit(struct ipw_priv *priv, u32 reg, u32 mask) |
| { |
| ipw_write32(priv, reg, ipw_read32(priv, reg) | mask); |
| } |
| |
| /* Clear bit(s) in low 4K of SRAM/regs */ |
| static inline void ipw_clear_bit(struct ipw_priv *priv, u32 reg, u32 mask) |
| { |
| ipw_write32(priv, reg, ipw_read32(priv, reg) & ~mask); |
| } |
| |
| static inline void __ipw_enable_interrupts(struct ipw_priv *priv) |
| { |
| if (priv->status & STATUS_INT_ENABLED) |
| return; |
| priv->status |= STATUS_INT_ENABLED; |
| ipw_write32(priv, IPW_INTA_MASK_R, IPW_INTA_MASK_ALL); |
| } |
| |
| static inline void __ipw_disable_interrupts(struct ipw_priv *priv) |
| { |
| if (!(priv->status & STATUS_INT_ENABLED)) |
| return; |
| priv->status &= ~STATUS_INT_ENABLED; |
| ipw_write32(priv, IPW_INTA_MASK_R, ~IPW_INTA_MASK_ALL); |
| } |
| |
| static inline void ipw_enable_interrupts(struct ipw_priv *priv) |
| { |
| unsigned long flags; |
| |
| spin_lock_irqsave(&priv->irq_lock, flags); |
| __ipw_enable_interrupts(priv); |
| spin_unlock_irqrestore(&priv->irq_lock, flags); |
| } |
| |
| static inline void ipw_disable_interrupts(struct ipw_priv *priv) |
| { |
| unsigned long flags; |
| |
| spin_lock_irqsave(&priv->irq_lock, flags); |
| __ipw_disable_interrupts(priv); |
| spin_unlock_irqrestore(&priv->irq_lock, flags); |
| } |
| |
| static char *ipw_error_desc(u32 val) |
| { |
| switch (val) { |
| case IPW_FW_ERROR_OK: |
| return "ERROR_OK"; |
| case IPW_FW_ERROR_FAIL: |
| return "ERROR_FAIL"; |
| case IPW_FW_ERROR_MEMORY_UNDERFLOW: |
| return "MEMORY_UNDERFLOW"; |
| case IPW_FW_ERROR_MEMORY_OVERFLOW: |
| return "MEMORY_OVERFLOW"; |
| case IPW_FW_ERROR_BAD_PARAM: |
| return "BAD_PARAM"; |
| case IPW_FW_ERROR_BAD_CHECKSUM: |
| return "BAD_CHECKSUM"; |
| case IPW_FW_ERROR_NMI_INTERRUPT: |
| return "NMI_INTERRUPT"; |
| case IPW_FW_ERROR_BAD_DATABASE: |
| return "BAD_DATABASE"; |
| case IPW_FW_ERROR_ALLOC_FAIL: |
| return "ALLOC_FAIL"; |
| case IPW_FW_ERROR_DMA_UNDERRUN: |
| return "DMA_UNDERRUN"; |
| case IPW_FW_ERROR_DMA_STATUS: |
| return "DMA_STATUS"; |
| case IPW_FW_ERROR_DINO_ERROR: |
| return "DINO_ERROR"; |
| case IPW_FW_ERROR_EEPROM_ERROR: |
| return "EEPROM_ERROR"; |
| case IPW_FW_ERROR_SYSASSERT: |
| return "SYSASSERT"; |
| case IPW_FW_ERROR_FATAL_ERROR: |
| return "FATAL_ERROR"; |
| default: |
| return "UNKNOWN_ERROR"; |
| } |
| } |
| |
| static void ipw_dump_error_log(struct ipw_priv *priv, |
| struct ipw_fw_error *error) |
| { |
| u32 i; |
| |
| if (!error) { |
| IPW_ERROR("Error allocating and capturing error log. " |
| "Nothing to dump.\n"); |
| return; |
| } |
| |
| IPW_ERROR("Start IPW Error Log Dump:\n"); |
| IPW_ERROR("Status: 0x%08X, Config: %08X\n", |
| error->status, error->config); |
| |
| for (i = 0; i < error->elem_len; i++) |
| IPW_ERROR("%s %i 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n", |
| ipw_error_desc(error->elem[i].desc), |
| error->elem[i].time, |
| error->elem[i].blink1, |
| error->elem[i].blink2, |
| error->elem[i].link1, |
| error->elem[i].link2, error->elem[i].data); |
| for (i = 0; i < error->log_len; i++) |
| IPW_ERROR("%i\t0x%08x\t%i\n", |
| error->log[i].time, |
| error->log[i].data, error->log[i].event); |
| } |
| |
| static inline int ipw_is_init(struct ipw_priv *priv) |
| { |
| return (priv->status & STATUS_INIT) ? 1 : 0; |
| } |
| |
| static int ipw_get_ordinal(struct ipw_priv *priv, u32 ord, void *val, u32 * len) |
| { |
| u32 addr, field_info, field_len, field_count, total_len; |
| |
| IPW_DEBUG_ORD("ordinal = %i\n", ord); |
| |
| if (!priv || !val || !len) { |
| IPW_DEBUG_ORD("Invalid argument\n"); |
| return -EINVAL; |
| } |
| |
| /* verify device ordinal tables have been initialized */ |
| if (!priv->table0_addr || !priv->table1_addr || !priv->table2_addr) { |
| IPW_DEBUG_ORD("Access ordinals before initialization\n"); |
| return -EINVAL; |
| } |
| |
| switch (IPW_ORD_TABLE_ID_MASK & ord) { |
| case IPW_ORD_TABLE_0_MASK: |
| /* |
| * TABLE 0: Direct access to a table of 32 bit values |
| * |
| * This is a very simple table with the data directly |
| * read from the table |
| */ |
| |
| /* remove the table id from the ordinal */ |
| ord &= IPW_ORD_TABLE_VALUE_MASK; |
| |
| /* boundary check */ |
| if (ord > priv->table0_len) { |
| IPW_DEBUG_ORD("ordinal value (%i) longer then " |
| "max (%i)\n", ord, priv->table0_len); |
| return -EINVAL; |
| } |
| |
| /* verify we have enough room to store the value */ |
| if (*len < sizeof(u32)) { |
| IPW_DEBUG_ORD("ordinal buffer length too small, " |
| "need %zd\n", sizeof(u32)); |
| return -EINVAL; |
| } |
| |
| IPW_DEBUG_ORD("Reading TABLE0[%i] from offset 0x%08x\n", |
| ord, priv->table0_addr + (ord << 2)); |
| |
| *len = sizeof(u32); |
| ord <<= 2; |
| *((u32 *) val) = ipw_read32(priv, priv->table0_addr + ord); |
| break; |
| |
| case IPW_ORD_TABLE_1_MASK: |
| /* |
| * TABLE 1: Indirect access to a table of 32 bit values |
| * |
| * This is a fairly large table of u32 values each |
| * representing starting addr for the data (which is |
| * also a u32) |
| */ |
| |
| /* remove the table id from the ordinal */ |
| ord &= IPW_ORD_TABLE_VALUE_MASK; |
| |
| /* boundary check */ |
| if (ord > priv->table1_len) { |
| IPW_DEBUG_ORD("ordinal value too long\n"); |
| return -EINVAL; |
| } |
| |
| /* verify we have enough room to store the value */ |
| if (*len < sizeof(u32)) { |
| IPW_DEBUG_ORD("ordinal buffer length too small, " |
| "need %zd\n", sizeof(u32)); |
| return -EINVAL; |
| } |
| |
| *((u32 *) val) = |
| ipw_read_reg32(priv, (priv->table1_addr + (ord << 2))); |
| *len = sizeof(u32); |
| break; |
| |
| case IPW_ORD_TABLE_2_MASK: |
| /* |
| * TABLE 2: Indirect access to a table of variable sized values |
| * |
| * This table consist of six values, each containing |
| * - dword containing the starting offset of the data |
| * - dword containing the lengh in the first 16bits |
| * and the count in the second 16bits |
| */ |
| |
| /* remove the table id from the ordinal */ |
| ord &= IPW_ORD_TABLE_VALUE_MASK; |
| |
| /* boundary check */ |
| if (ord > priv->table2_len) { |
| IPW_DEBUG_ORD("ordinal value too long\n"); |
| return -EINVAL; |
| } |
| |
| /* get the address of statistic */ |
| addr = ipw_read_reg32(priv, priv->table2_addr + (ord << 3)); |
| |
| /* get the second DW of statistics ; |
| * two 16-bit words - first is length, second is count */ |
| field_info = |
| ipw_read_reg32(priv, |
| priv->table2_addr + (ord << 3) + |
| sizeof(u32)); |
| |
| /* get each entry length */ |
| field_len = *((u16 *) & field_info); |
| |
| /* get number of entries */ |
| field_count = *(((u16 *) & field_info) + 1); |
| |
| /* abort if not enough memory */ |
| total_len = field_len * field_count; |
| if (total_len > *len) { |
| *len = total_len; |
| return -EINVAL; |
| } |
| |
| *len = total_len; |
| if (!total_len) |
| return 0; |
| |
| IPW_DEBUG_ORD("addr = 0x%08x, total_len = %i, " |
| "field_info = 0x%08x\n", |
| addr, total_len, field_info); |
| ipw_read_indirect(priv, addr, val, total_len); |
| break; |
| |
| default: |
| IPW_DEBUG_ORD("Invalid ordinal!\n"); |
| return -EINVAL; |
| |
| } |
| |
| return 0; |
| } |
| |
| static void ipw_init_ordinals(struct ipw_priv *priv) |
| { |
| priv->table0_addr = IPW_ORDINALS_TABLE_LOWER; |
| priv->table0_len = ipw_read32(priv, priv->table0_addr); |
| |
| IPW_DEBUG_ORD("table 0 offset at 0x%08x, len = %i\n", |
| priv->table0_addr, priv->table0_len); |
| |
| priv->table1_addr = ipw_read32(priv, IPW_ORDINALS_TABLE_1); |
| priv->table1_len = ipw_read_reg32(priv, priv->table1_addr); |
| |
| IPW_DEBUG_ORD("table 1 offset at 0x%08x, len = %i\n", |
| priv->table1_addr, priv->table1_len); |
| |
| priv->table2_addr = ipw_read32(priv, IPW_ORDINALS_TABLE_2); |
| priv->table2_len = ipw_read_reg32(priv, priv->table2_addr); |
| priv->table2_len &= 0x0000ffff; /* use first two bytes */ |
| |
| IPW_DEBUG_ORD("table 2 offset at 0x%08x, len = %i\n", |
| priv->table2_addr, priv->table2_len); |
| |
| } |
| |
| static u32 ipw_register_toggle(u32 reg) |
| { |
| reg &= ~IPW_START_STANDBY; |
| if (reg & IPW_GATE_ODMA) |
| reg &= ~IPW_GATE_ODMA; |
| if (reg & IPW_GATE_IDMA) |
| reg &= ~IPW_GATE_IDMA; |
| if (reg & IPW_GATE_ADMA) |
| reg &= ~IPW_GATE_ADMA; |
| return reg; |
| } |
| |
| /* |
| * LED behavior: |
| * - On radio ON, turn on any LEDs that require to be on during start |
| * - On initialization, start unassociated blink |
| * - On association, disable unassociated blink |
| * - On disassociation, start unassociated blink |
| * - On radio OFF, turn off any LEDs started during radio on |
| * |
| */ |
| #define LD_TIME_LINK_ON msecs_to_jiffies(300) |
| #define LD_TIME_LINK_OFF msecs_to_jiffies(2700) |
| #define LD_TIME_ACT_ON msecs_to_jiffies(250) |
| |
| static void ipw_led_link_on(struct ipw_priv *priv) |
| { |
| unsigned long flags; |
| u32 led; |
| |
| /* If configured to not use LEDs, or nic_type is 1, |
| * then we don't toggle a LINK led */ |
| if (priv->config & CFG_NO_LED || priv->nic_type == EEPROM_NIC_TYPE_1) |
| return; |
| |
| spin_lock_irqsave(&priv->lock, flags); |
| |
| if (!(priv->status & STATUS_RF_KILL_MASK) && |
| !(priv->status & STATUS_LED_LINK_ON)) { |
| IPW_DEBUG_LED("Link LED On\n"); |
| led = ipw_read_reg32(priv, IPW_EVENT_REG); |
| led |= priv->led_association_on; |
| |
| led = ipw_register_toggle(led); |
| |
| IPW_DEBUG_LED("Reg: 0x%08X\n", led); |
| ipw_write_reg32(priv, IPW_EVENT_REG, led); |
| |
| priv->status |= STATUS_LED_LINK_ON; |
| |
| /* If we aren't associated, schedule turning the LED off */ |
| if (!(priv->status & STATUS_ASSOCIATED)) |
| schedule_delayed_work(&priv->led_link_off, |
| LD_TIME_LINK_ON); |
| } |
| |
| spin_unlock_irqrestore(&priv->lock, flags); |
| } |
| |
| static void ipw_bg_led_link_on(struct work_struct *work) |
| { |
| struct ipw_priv *priv = |
| container_of(work, struct ipw_priv, led_link_on.work); |
| mutex_lock(&priv->mutex); |
| ipw_led_link_on(priv); |
| mutex_unlock(&priv->mutex); |
| } |
| |
| static void ipw_led_link_off(struct ipw_priv *priv) |
| { |
| unsigned long flags; |
| u32 led; |
| |
| /* If configured not to use LEDs, or nic type is 1, |
| * then we don't goggle the LINK led. */ |
| if (priv->config & CFG_NO_LED || priv->nic_type == EEPROM_NIC_TYPE_1) |
| return; |
| |
| spin_lock_irqsave(&priv->lock, flags); |
| |
| if (priv->status & STATUS_LED_LINK_ON) { |
| led = ipw_read_reg32(priv, IPW_EVENT_REG); |
| led &= priv->led_association_off; |
| led = ipw_register_toggle(led); |
| |
| IPW_DEBUG_LED("Reg: 0x%08X\n", led); |
| ipw_write_reg32(priv, IPW_EVENT_REG, led); |
| |
| IPW_DEBUG_LED("Link LED Off\n"); |
| |
| priv->status &= ~STATUS_LED_LINK_ON; |
| |
| /* If we aren't associated and the radio is on, schedule |
| * turning the LED on (blink while unassociated) */ |
| if (!(priv->status & STATUS_RF_KILL_MASK) && |
| !(priv->status & STATUS_ASSOCIATED)) |
| schedule_delayed_work(&priv->led_link_on, |
| LD_TIME_LINK_OFF); |
| |
| } |
| |
| spin_unlock_irqrestore(&priv->lock, flags); |
| } |
| |
| static void ipw_bg_led_link_off(struct work_struct *work) |
| { |
| struct ipw_priv *priv = |
| container_of(work, struct ipw_priv, led_link_off.work); |
| mutex_lock(&priv->mutex); |
| ipw_led_link_off(priv); |
| mutex_unlock(&priv->mutex); |
| } |
| |
| static void __ipw_led_activity_on(struct ipw_priv *priv) |
| { |
| u32 led; |
| |
| if (priv->config & CFG_NO_LED) |
| return; |
| |
| if (priv->status & STATUS_RF_KILL_MASK) |
| return; |
| |
| if (!(priv->status & STATUS_LED_ACT_ON)) { |
| led = ipw_read_reg32(priv, IPW_EVENT_REG); |
| led |= priv->led_activity_on; |
| |
| led = ipw_register_toggle(led); |
| |
| IPW_DEBUG_LED("Reg: 0x%08X\n", led); |
| ipw_write_reg32(priv, IPW_EVENT_REG, led); |
| |
| IPW_DEBUG_LED("Activity LED On\n"); |
| |
| priv->status |= STATUS_LED_ACT_ON; |
| |
| cancel_delayed_work(&priv->led_act_off); |
| schedule_delayed_work(&priv->led_act_off, LD_TIME_ACT_ON); |
| } else { |
| /* Reschedule LED off for full time period */ |
| cancel_delayed_work(&priv->led_act_off); |
| schedule_delayed_work(&priv->led_act_off, LD_TIME_ACT_ON); |
| } |
| } |
| |
| #if 0 |
| void ipw_led_activity_on(struct ipw_priv *priv) |
| { |
| unsigned long flags; |
| spin_lock_irqsave(&priv->lock, flags); |
| __ipw_led_activity_on(priv); |
| spin_unlock_irqrestore(&priv->lock, flags); |
| } |
| #endif /* 0 */ |
| |
| static void ipw_led_activity_off(struct ipw_priv *priv) |
| { |
| unsigned long flags; |
| u32 led; |
| |
| if (priv->config & CFG_NO_LED) |
| return; |
| |
| spin_lock_irqsave(&priv->lock, flags); |
| |
| if (priv->status & STATUS_LED_ACT_ON) { |
| led = ipw_read_reg32(priv, IPW_EVENT_REG); |
| led &= priv->led_activity_off; |
| |
| led = ipw_register_toggle(led); |
| |
| IPW_DEBUG_LED("Reg: 0x%08X\n", led); |
| ipw_write_reg32(priv, IPW_EVENT_REG, led); |
| |
| IPW_DEBUG_LED("Activity LED Off\n"); |
| |
| priv->status &= ~STATUS_LED_ACT_ON; |
| } |
| |
| spin_unlock_irqrestore(&priv->lock, flags); |
| } |
| |
| static void ipw_bg_led_activity_off(struct work_struct *work) |
| { |
| struct ipw_priv *priv = |
| container_of(work, struct ipw_priv, led_act_off.work); |
| mutex_lock(&priv->mutex); |
| ipw_led_activity_off(priv); |
| mutex_unlock(&priv->mutex); |
| } |
| |
| static void ipw_led_band_on(struct ipw_priv *priv) |
| { |
| unsigned long flags; |
| u32 led; |
| |
| /* Only nic type 1 supports mode LEDs */ |
| if (priv->config & CFG_NO_LED || |
| priv->nic_type != EEPROM_NIC_TYPE_1 || !priv->assoc_network) |
| return; |
| |
| spin_lock_irqsave(&priv->lock, flags); |
| |
| led = ipw_read_reg32(priv, IPW_EVENT_REG); |
| if (priv->assoc_network->mode == IEEE_A) { |
| led |= priv->led_ofdm_on; |
| led &= priv->led_association_off; |
| IPW_DEBUG_LED("Mode LED On: 802.11a\n"); |
| } else if (priv->assoc_network->mode == IEEE_G) { |
| led |= priv->led_ofdm_on; |
| led |= priv->led_association_on; |
| IPW_DEBUG_LED("Mode LED On: 802.11g\n"); |
| } else { |
| led &= priv->led_ofdm_off; |
| led |= priv->led_association_on; |
| IPW_DEBUG_LED("Mode LED On: 802.11b\n"); |
| } |
| |
| led = ipw_register_toggle(led); |
| |
| IPW_DEBUG_LED("Reg: 0x%08X\n", led); |
| ipw_write_reg32(priv, IPW_EVENT_REG, led); |
| |
| spin_unlock_irqrestore(&priv->lock, flags); |
| } |
| |
| static void ipw_led_band_off(struct ipw_priv *priv) |
| { |
| unsigned long flags; |
| u32 led; |
| |
| /* Only nic type 1 supports mode LEDs */ |
| if (priv->config & CFG_NO_LED || priv->nic_type != EEPROM_NIC_TYPE_1) |
| return; |
| |
| spin_lock_irqsave(&priv->lock, flags); |
| |
| led = ipw_read_reg32(priv, IPW_EVENT_REG); |
| led &= priv->led_ofdm_off; |
| led &= priv->led_association_off; |
| |
| led = ipw_register_toggle(led); |
| |
| IPW_DEBUG_LED("Reg: 0x%08X\n", led); |
| ipw_write_reg32(priv, IPW_EVENT_REG, led); |
| |
| spin_unlock_irqrestore(&priv->lock, flags); |
| } |
| |
| static void ipw_led_radio_on(struct ipw_priv *priv) |
| { |
| ipw_led_link_on(priv); |
| } |
| |
| static void ipw_led_radio_off(struct ipw_priv *priv) |
| { |
| ipw_led_activity_off(priv); |
| ipw_led_link_off(priv); |
| } |
| |
| static void ipw_led_link_up(struct ipw_priv *priv) |
| { |
| /* Set the Link Led on for all nic types */ |
| ipw_led_link_on(priv); |
| } |
| |
| static void ipw_led_link_down(struct ipw_priv *priv) |
| { |
| ipw_led_activity_off(priv); |
| ipw_led_link_off(priv); |
| |
| if (priv->status & STATUS_RF_KILL_MASK) |
| ipw_led_radio_off(priv); |
| } |
| |
| static void ipw_led_init(struct ipw_priv *priv) |
| { |
| priv->nic_type = priv->eeprom[EEPROM_NIC_TYPE]; |
| |
| /* Set the default PINs for the link and activity leds */ |
| priv->led_activity_on = IPW_ACTIVITY_LED; |
| priv->led_activity_off = ~(IPW_ACTIVITY_LED); |
| |
| priv->led_association_on = IPW_ASSOCIATED_LED; |
| priv->led_association_off = ~(IPW_ASSOCIATED_LED); |
| |
| /* Set the default PINs for the OFDM leds */ |
| priv->led_ofdm_on = IPW_OFDM_LED; |
| priv->led_ofdm_off = ~(IPW_OFDM_LED); |
| |
| switch (priv->nic_type) { |
| case EEPROM_NIC_TYPE_1: |
| /* In this NIC type, the LEDs are reversed.... */ |
| priv->led_activity_on = IPW_ASSOCIATED_LED; |
| priv->led_activity_off = ~(IPW_ASSOCIATED_LED); |
| priv->led_association_on = IPW_ACTIVITY_LED; |
| priv->led_association_off = ~(IPW_ACTIVITY_LED); |
| |
| if (!(priv->config & CFG_NO_LED)) |
| ipw_led_band_on(priv); |
| |
| /* And we don't blink link LEDs for this nic, so |
| * just return here */ |
| return; |
| |
| case EEPROM_NIC_TYPE_3: |
| case EEPROM_NIC_TYPE_2: |
| case EEPROM_NIC_TYPE_4: |
| case EEPROM_NIC_TYPE_0: |
| break; |
| |
| default: |
| IPW_DEBUG_INFO("Unknown NIC type from EEPROM: %d\n", |
| priv->nic_type); |
| priv->nic_type = EEPROM_NIC_TYPE_0; |
| break; |
| } |
| |
| if (!(priv->config & CFG_NO_LED)) { |
| if (priv->status & STATUS_ASSOCIATED) |
| ipw_led_link_on(priv); |
| else |
| ipw_led_link_off(priv); |
| } |
| } |
| |
| static void ipw_led_shutdown(struct ipw_priv *priv) |
| { |
| ipw_led_activity_off(priv); |
| ipw_led_link_off(priv); |
| ipw_led_band_off(priv); |
| cancel_delayed_work(&priv->led_link_on); |
| cancel_delayed_work(&priv->led_link_off); |
| cancel_delayed_work(&priv->led_act_off); |
| } |
| |
| /* |
| * The following adds a new attribute to the sysfs representation |
| * of this device driver (i.e. a new file in /sys/bus/pci/drivers/ipw/) |
| * used for controlling the debug level. |
| * |
| * See the level definitions in ipw for details. |
| */ |
| static ssize_t debug_level_show(struct device_driver *d, char *buf) |
| { |
| return sprintf(buf, "0x%08X\n", ipw_debug_level); |
| } |
| |
| static ssize_t debug_level_store(struct device_driver *d, const char *buf, |
| size_t count) |
| { |
| char *p = (char *)buf; |
| u32 val; |
| |
| if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') { |
| p++; |
| if (p[0] == 'x' || p[0] == 'X') |
| p++; |
| val = simple_strtoul(p, &p, 16); |
| } else |
| val = simple_strtoul(p, &p, 10); |
| if (p == buf) |
| printk(KERN_INFO DRV_NAME |
| ": %s is not in hex or decimal form.\n", buf); |
| else |
| ipw_debug_level = val; |
| |
| return strnlen(buf, count); |
| } |
| static DRIVER_ATTR_RW(debug_level); |
| |
| static inline u32 ipw_get_event_log_len(struct ipw_priv *priv) |
| { |
| /* length = 1st dword in log */ |
| return ipw_read_reg32(priv, ipw_read32(priv, IPW_EVENT_LOG)); |
| } |
| |
| static void ipw_capture_event_log(struct ipw_priv *priv, |
| u32 log_len, struct ipw_event *log) |
| { |
| u32 base; |
| |
| if (log_len) { |
| base = ipw_read32(priv, IPW_EVENT_LOG); |
| ipw_read_indirect(priv, base + sizeof(base) + sizeof(u32), |
| (u8 *) log, sizeof(*log) * log_len); |
| } |
| } |
| |
| static struct ipw_fw_error *ipw_alloc_error_log(struct ipw_priv *priv) |
| { |
| struct ipw_fw_error *error; |
| u32 log_len = ipw_get_event_log_len(priv); |
| u32 base = ipw_read32(priv, IPW_ERROR_LOG); |
| u32 elem_len = ipw_read_reg32(priv, base); |
| |
| error = kmalloc(sizeof(*error) + |
| sizeof(*error->elem) * elem_len + |
| sizeof(*error->log) * log_len, GFP_ATOMIC); |
| if (!error) { |
| IPW_ERROR("Memory allocation for firmware error log " |
| "failed.\n"); |
| return NULL; |
| } |
| error->jiffies = jiffies; |
| error->status = priv->status; |
| error->config = priv->config; |
| error->elem_len = elem_len; |
| error->log_len = log_len; |
| error->elem = (struct ipw_error_elem *)error->payload; |
| error->log = (struct ipw_event *)(error->elem + elem_len); |
| |
| ipw_capture_event_log(priv, log_len, error->log); |
| |
| if (elem_len) |
| ipw_read_indirect(priv, base + sizeof(base), (u8 *) error->elem, |
| sizeof(*error->elem) * elem_len); |
| |
| return error; |
| } |
| |
| static ssize_t show_event_log(struct device *d, |
| struct device_attribute *attr, char *buf) |
| { |
| struct ipw_priv *priv = dev_get_drvdata(d); |
| u32 log_len = ipw_get_event_log_len(priv); |
| u32 log_size; |
| struct ipw_event *log; |
| u32 len = 0, i; |
| |
| /* not using min() because of its strict type checking */ |
| log_size = PAGE_SIZE / sizeof(*log) > log_len ? |
| sizeof(*log) * log_len : PAGE_SIZE; |
| log = kzalloc(log_size, GFP_KERNEL); |
| if (!log) { |
| IPW_ERROR("Unable to allocate memory for log\n"); |
| return 0; |
| } |
| log_len = log_size / sizeof(*log); |
| ipw_capture_event_log(priv, log_len, log); |
| |
| len += snprintf(buf + len, PAGE_SIZE - len, "%08X", log_len); |
| for (i = 0; i < log_len; i++) |
| len += snprintf(buf + len, PAGE_SIZE - len, |
| "\n%08X%08X%08X", |
| log[i].time, log[i].event, log[i].data); |
| len += snprintf(buf + len, PAGE_SIZE - len, "\n"); |
| kfree(log); |
| return len; |
| } |
| |
| static DEVICE_ATTR(event_log, 0444, show_event_log, NULL); |
| |
| static ssize_t show_error(struct device *d, |
| struct device_attribute *attr, char *buf) |
| { |
| struct ipw_priv *priv = dev_get_drvdata(d); |
| u32 len = 0, i; |
| if (!priv->error) |
| return 0; |
| len += snprintf(buf + len, PAGE_SIZE - len, |
| "%08lX%08X%08X%08X", |
| priv->error->jiffies, |
| priv->error->status, |
| priv->error->config, priv->error->elem_len); |
| for (i = 0; i < priv->error->elem_len; i++) |
| len += snprintf(buf + len, PAGE_SIZE - len, |
| "\n%08X%08X%08X%08X%08X%08X%08X", |
| priv->error->elem[i].time, |
| priv->error->elem[i].desc, |
| priv->error->elem[i].blink1, |
| priv->error->elem[i].blink2, |
| priv->error->elem[i].link1, |
| priv->error->elem[i].link2, |
| priv->error->elem[i].data); |
| |
| len += snprintf(buf + len, PAGE_SIZE - len, |
| "\n%08X", priv->error->log_len); |
| for (i = 0; i < priv->error->log_len; i++) |
| len += snprintf(buf + len, PAGE_SIZE - len, |
| "\n%08X%08X%08X", |
| priv->error->log[i].time, |
| priv->error->log[i].event, |
| priv->error->log[i].data); |
| len += snprintf(buf + len, PAGE_SIZE - len, "\n"); |
| return len; |
| } |
| |
| static ssize_t clear_error(struct device *d, |
| struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct ipw_priv *priv = dev_get_drvdata(d); |
| |
| kfree(priv->error); |
| priv->error = NULL; |
| return count; |
| } |
| |
| static DEVICE_ATTR(error, 0644, show_error, clear_error); |
| |
| static ssize_t show_cmd_log(struct device *d, |
| struct device_attribute *attr, char *buf) |
| { |
| struct ipw_priv *priv = dev_get_drvdata(d); |
| u32 len = 0, i; |
| if (!priv->cmdlog) |
| return 0; |
| for (i = (priv->cmdlog_pos + 1) % priv->cmdlog_len; |
| (i != priv->cmdlog_pos) && (len < PAGE_SIZE); |
| i = (i + 1) % priv->cmdlog_len) { |
| len += |
| snprintf(buf + len, PAGE_SIZE - len, |
| "\n%08lX%08X%08X%08X\n", priv->cmdlog[i].jiffies, |
| priv->cmdlog[i].retcode, priv->cmdlog[i].cmd.cmd, |
| priv->cmdlog[i].cmd.len); |
| len += |
| snprintk_buf(buf + len, PAGE_SIZE - len, |
| (u8 *) priv->cmdlog[i].cmd.param, |
| priv->cmdlog[i].cmd.len); |
| len += snprintf(buf + len, PAGE_SIZE - len, "\n"); |
| } |
| len += snprintf(buf + len, PAGE_SIZE - len, "\n"); |
| return len; |
| } |
| |
| static DEVICE_ATTR(cmd_log, 0444, show_cmd_log, NULL); |
| |
| #ifdef CONFIG_IPW2200_PROMISCUOUS |
| static void ipw_prom_free(struct ipw_priv *priv); |
| static int ipw_prom_alloc(struct ipw_priv *priv); |
| static ssize_t store_rtap_iface(struct device *d, |
| struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct ipw_priv *priv = dev_get_drvdata(d); |
| int rc = 0; |
| |
| if (count < 1) |
| return -EINVAL; |
| |
| switch (buf[0]) { |
| case '0': |
| if (!rtap_iface) |
| return count; |
| |
| if (netif_running(priv->prom_net_dev)) { |
| IPW_WARNING("Interface is up. Cannot unregister.\n"); |
| return count; |
| } |
| |
| ipw_prom_free(priv); |
| rtap_iface = 0; |
| break; |
| |
| case '1': |
| if (rtap_iface) |
| return count; |
| |
| rc = ipw_prom_alloc(priv); |
| if (!rc) |
| rtap_iface = 1; |
| break; |
| |
| default: |
| return -EINVAL; |
| } |
| |
| if (rc) { |
| IPW_ERROR("Failed to register promiscuous network " |
| "device (error %d).\n", rc); |
| } |
| |
| return count; |
| } |
| |
| static ssize_t show_rtap_iface(struct device *d, |
| struct device_attribute *attr, |
| char *buf) |
| { |
| struct ipw_priv *priv = dev_get_drvdata(d); |
| if (rtap_iface) |
| return sprintf(buf, "%s", priv->prom_net_dev->name); |
| else { |
| buf[0] = '-'; |
| buf[1] = '1'; |
| buf[2] = '\0'; |
| return 3; |
| } |
| } |
| |
| static DEVICE_ATTR(rtap_iface, 0600, show_rtap_iface, store_rtap_iface); |
| |
| static ssize_t store_rtap_filter(struct device *d, |
| struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct ipw_priv *priv = dev_get_drvdata(d); |
| |
| if (!priv->prom_priv) { |
| IPW_ERROR("Attempting to set filter without " |
| "rtap_iface enabled.\n"); |
| return -EPERM; |
| } |
| |
| priv->prom_priv->filter = simple_strtol(buf, NULL, 0); |
| |
| IPW_DEBUG_INFO("Setting rtap filter to " BIT_FMT16 "\n", |
| BIT_ARG16(priv->prom_priv->filter)); |
| |
| return count; |
| } |
| |
| static ssize_t show_rtap_filter(struct device *d, |
| struct device_attribute *attr, |
| char *buf) |
| { |
| struct ipw_priv *priv = dev_get_drvdata(d); |
| return sprintf(buf, "0x%04X", |
| priv->prom_priv ? priv->prom_priv->filter : 0); |
| } |
| |
| static DEVICE_ATTR(rtap_filter, 0600, show_rtap_filter, store_rtap_filter); |
| #endif |
| |
| static ssize_t show_scan_age(struct device *d, struct device_attribute *attr, |
| char *buf) |
| { |
| struct ipw_priv *priv = dev_get_drvdata(d); |
| return sprintf(buf, "%d\n", priv->ieee->scan_age); |
| } |
| |
| static ssize_t store_scan_age(struct device *d, struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct ipw_priv *priv = dev_get_drvdata(d); |
| struct net_device *dev = priv->net_dev; |
| char buffer[] = "00000000"; |
| unsigned long len = |
| (sizeof(buffer) - 1) > count ? count : sizeof(buffer) - 1; |
| unsigned long val; |
| char *p = buffer; |
| |
| IPW_DEBUG_INFO("enter\n"); |
| |
| strncpy(buffer, buf, len); |
| buffer[len] = 0; |
| |
| if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') { |
| p++; |
| if (p[0] == 'x' || p[0] == 'X') |
| p++; |
| val = simple_strtoul(p, &p, 16); |
| } else |
| val = simple_strtoul(p, &p, 10); |
| if (p == buffer) { |
| IPW_DEBUG_INFO("%s: user supplied invalid value.\n", dev->name); |
| } else { |
| priv->ieee->scan_age = val; |
| IPW_DEBUG_INFO("set scan_age = %u\n", priv->ieee->scan_age); |
| } |
| |
| IPW_DEBUG_INFO("exit\n"); |
| return len; |
| } |
| |
| static DEVICE_ATTR(scan_age, 0644, show_scan_age, store_scan_age); |
| |
| static ssize_t show_led(struct device *d, struct device_attribute *attr, |
| char *buf) |
| { |
| struct ipw_priv *priv = dev_get_drvdata(d); |
| return sprintf(buf, "%d\n", (priv->config & CFG_NO_LED) ? 0 : 1); |
| } |
| |
| static ssize_t store_led(struct device *d, struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct ipw_priv *priv = dev_get_drvdata(d); |
| |
| IPW_DEBUG_INFO("enter\n"); |
| |
| if (count == 0) |
| return 0; |
| |
| if (*buf == 0) { |
| IPW_DEBUG_LED("Disabling LED control.\n"); |
| priv->config |= CFG_NO_LED; |
| ipw_led_shutdown(priv); |
| } else { |
| IPW_DEBUG_LED("Enabling LED control.\n"); |
| priv->config &= ~CFG_NO_LED; |
| ipw_led_init(priv); |
| } |
| |
| IPW_DEBUG_INFO("exit\n"); |
| return count; |
| } |
| |
| static DEVICE_ATTR(led, 0644, show_led, store_led); |
| |
| static ssize_t show_status(struct device *d, |
| struct device_attribute *attr, char *buf) |
| { |
| struct ipw_priv *p = dev_get_drvdata(d); |
| return sprintf(buf, "0x%08x\n", (int)p->status); |
| } |
| |
| static DEVICE_ATTR(status, 0444, show_status, NULL); |
| |
| static ssize_t show_cfg(struct device *d, struct device_attribute *attr, |
| char *buf) |
| { |
| struct ipw_priv *p = dev_get_drvdata(d); |
| return sprintf(buf, "0x%08x\n", (int)p->config); |
| } |
| |
| static DEVICE_ATTR(cfg, 0444, show_cfg, NULL); |
| |
| static ssize_t show_nic_type(struct device *d, |
| struct device_attribute *attr, char *buf) |
| { |
| struct ipw_priv *priv = dev_get_drvdata(d); |
| return sprintf(buf, "TYPE: %d\n", priv->nic_type); |
| } |
| |
| static DEVICE_ATTR(nic_type, 0444, show_nic_type, NULL); |
| |
| static ssize_t show_ucode_version(struct device *d, |
| struct device_attribute *attr, char *buf) |
| { |
| u32 len = sizeof(u32), tmp = 0; |
| struct ipw_priv *p = dev_get_drvdata(d); |
| |
| if (ipw_get_ordinal(p, IPW_ORD_STAT_UCODE_VERSION, &tmp, &len)) |
| return 0; |
| |
| return sprintf(buf, "0x%08x\n", tmp); |
| } |
| |
| static DEVICE_ATTR(ucode_version, 0644, show_ucode_version, NULL); |
| |
| static ssize_t show_rtc(struct device *d, struct device_attribute *attr, |
| char *buf) |
| { |
| u32 len = sizeof(u32), tmp = 0; |
| struct ipw_priv *p = dev_get_drvdata(d); |
| |
| if (ipw_get_ordinal(p, IPW_ORD_STAT_RTC, &tmp, &len)) |
| return 0; |
| |
| return sprintf(buf, "0x%08x\n", tmp); |
| } |
| |
| static DEVICE_ATTR(rtc, 0644, show_rtc, NULL); |
| |
| /* |
| * Add a device attribute to view/control the delay between eeprom |
| * operations. |
| */ |
| static ssize_t show_eeprom_delay(struct device *d, |
| struct device_attribute *attr, char *buf) |
| { |
| struct ipw_priv *p = dev_get_drvdata(d); |
| int n = p->eeprom_delay; |
| return sprintf(buf, "%i\n", n); |
| } |
| static ssize_t store_eeprom_delay(struct device *d, |
| struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct ipw_priv *p = dev_get_drvdata(d); |
| sscanf(buf, "%i", &p->eeprom_delay); |
| return strnlen(buf, count); |
| } |
| |
| static DEVICE_ATTR(eeprom_delay, 0644, show_eeprom_delay, store_eeprom_delay); |
| |
| static ssize_t show_command_event_reg(struct device *d, |
| struct device_attribute *attr, char *buf) |
| { |
| u32 reg = 0; |
| struct ipw_priv *p = dev_get_drvdata(d); |
| |
| reg = ipw_read_reg32(p, IPW_INTERNAL_CMD_EVENT); |
| return sprintf(buf, "0x%08x\n", reg); |
| } |
| static ssize_t store_command_event_reg(struct device *d, |
| struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| u32 reg; |
| struct ipw_priv *p = dev_get_drvdata(d); |
| |
| sscanf(buf, "%x", ®); |
| ipw_write_reg32(p, IPW_INTERNAL_CMD_EVENT, reg); |
| return strnlen(buf, count); |
| } |
| |
| static DEVICE_ATTR(command_event_reg, 0644, |
| show_command_event_reg, store_command_event_reg); |
| |
| static ssize_t show_mem_gpio_reg(struct device *d, |
| struct device_attribute *attr, char *buf) |
| { |
| u32 reg = 0; |
| struct ipw_priv *p = dev_get_drvdata(d); |
| |
| reg = ipw_read_reg32(p, 0x301100); |
| return sprintf(buf, "0x%08x\n", reg); |
| } |
| static ssize_t store_mem_gpio_reg(struct device *d, |
| struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| u32 reg; |
| struct ipw_priv *p = dev_get_drvdata(d); |
| |
| sscanf(buf, "%x", ®); |
| ipw_write_reg32(p, 0x301100, reg); |
| return strnlen(buf, count); |
| } |
| |
| static DEVICE_ATTR(mem_gpio_reg, 0644, show_mem_gpio_reg, store_mem_gpio_reg); |
| |
| static ssize_t show_indirect_dword(struct device *d, |
| struct device_attribute *attr, char *buf) |
| { |
| u32 reg = 0; |
| struct ipw_priv *priv = dev_get_drvdata(d); |
| |
| if (priv->status & STATUS_INDIRECT_DWORD) |
| reg = ipw_read_reg32(priv, priv->indirect_dword); |
| else |
| reg = 0; |
| |
| return sprintf(buf, "0x%08x\n", reg); |
| } |
| static ssize_t store_indirect_dword(struct device *d, |
| struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct ipw_priv *priv = dev_get_drvdata(d); |
| |
| sscanf(buf, "%x", &priv->indirect_dword); |
| priv->status |= STATUS_INDIRECT_DWORD; |
| return strnlen(buf, count); |
| } |
| |
| static DEVICE_ATTR(indirect_dword, 0644, |
| show_indirect_dword, store_indirect_dword); |
| |
| static ssize_t show_indirect_byte(struct device *d, |
| struct device_attribute *attr, char *buf) |
| { |
| u8 reg = 0; |
| struct ipw_priv *priv = dev_get_drvdata(d); |
| |
| if (priv->status & STATUS_INDIRECT_BYTE) |
| reg = ipw_read_reg8(priv, priv->indirect_byte); |
| else |
| reg = 0; |
| |
| return sprintf(buf, "0x%02x\n", reg); |
| } |
| static ssize_t store_indirect_byte(struct device *d, |
| struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct ipw_priv *priv = dev_get_drvdata(d); |
| |
| sscanf(buf, "%x", &priv->indirect_byte); |
| priv->status |= STATUS_INDIRECT_BYTE; |
| return strnlen(buf, count); |
| } |
| |
| static DEVICE_ATTR(indirect_byte, 0644, |
| show_indirect_byte, store_indirect_byte); |
| |
| static ssize_t show_direct_dword(struct device *d, |
| struct device_attribute *attr, char *buf) |
| { |
| u32 reg = 0; |
| struct ipw_priv *priv = dev_get_drvdata(d); |
| |
| if (priv->status & STATUS_DIRECT_DWORD) |
| reg = ipw_read32(priv, priv->direct_dword); |
| else |
| reg = 0; |
| |
| return sprintf(buf, "0x%08x\n", reg); |
| } |
| static ssize_t store_direct_dword(struct device *d, |
| struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct ipw_priv *priv = dev_get_drvdata(d); |
| |
| sscanf(buf, "%x", &priv->direct_dword); |
| priv->status |= STATUS_DIRECT_DWORD; |
| return strnlen(buf, count); |
| } |
| |
| static DEVICE_ATTR(direct_dword, 0644, show_direct_dword, store_direct_dword); |
| |
| static int rf_kill_active(struct ipw_priv *priv) |
| { |
| if (0 == (ipw_read32(priv, 0x30) & 0x10000)) { |
| priv->status |= STATUS_RF_KILL_HW; |
| wiphy_rfkill_set_hw_state(priv->ieee->wdev.wiphy, true); |
| } else { |
| priv->status &= ~STATUS_RF_KILL_HW; |
| wiphy_rfkill_set_hw_state(priv->ieee->wdev.wiphy, false); |
| } |
| |
| return (priv->status & STATUS_RF_KILL_HW) ? 1 : 0; |
| } |
| |
| static ssize_t show_rf_kill(struct device *d, struct device_attribute *attr, |
| char *buf) |
| { |
| /* 0 - RF kill not enabled |
| 1 - SW based RF kill active (sysfs) |
| 2 - HW based RF kill active |
| 3 - Both HW and SW baed RF kill active */ |
| struct ipw_priv *priv = dev_get_drvdata(d); |
| int val = ((priv->status & STATUS_RF_KILL_SW) ? 0x1 : 0x0) | |
| (rf_kill_active(priv) ? 0x2 : 0x0); |
| return sprintf(buf, "%i\n", val); |
| } |
| |
| static int ipw_radio_kill_sw(struct ipw_priv *priv, int disable_radio) |
| { |
| if ((disable_radio ? 1 : 0) == |
| ((priv->status & STATUS_RF_KILL_SW) ? 1 : 0)) |
| return 0; |
| |
| IPW_DEBUG_RF_KILL("Manual SW RF Kill set to: RADIO %s\n", |
| disable_radio ? "OFF" : "ON"); |
| |
| if (disable_radio) { |
| priv->status |= STATUS_RF_KILL_SW; |
| |
| cancel_delayed_work(&priv->request_scan); |
| cancel_delayed_work(&priv->request_direct_scan); |
| cancel_delayed_work(&priv->request_passive_scan); |
| cancel_delayed_work(&priv->scan_event); |
| schedule_work(&priv->down); |
| } else { |
| priv->status &= ~STATUS_RF_KILL_SW; |
| if (rf_kill_active(priv)) { |
| IPW_DEBUG_RF_KILL("Can not turn radio back on - " |
| "disabled by HW switch\n"); |
| /* Make sure the RF_KILL check timer is running */ |
| cancel_delayed_work(&priv->rf_kill); |
| schedule_delayed_work(&priv->rf_kill, |
| round_jiffies_relative(2 * HZ)); |
| } else |
| schedule_work(&priv->up); |
| } |
| |
| return 1; |
| } |
| |
| static ssize_t store_rf_kill(struct device *d, struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct ipw_priv *priv = dev_get_drvdata(d); |
| |
| ipw_radio_kill_sw(priv, buf[0] == '1'); |
| |
| return count; |
| } |
| |
| static DEVICE_ATTR(rf_kill, 0644, show_rf_kill, store_rf_kill); |
| |
| static ssize_t show_speed_scan(struct device *d, struct device_attribute *attr, |
| char *buf) |
| { |
| struct ipw_priv *priv = dev_get_drvdata(d); |
| int pos = 0, len = 0; |
| if (priv->config & CFG_SPEED_SCAN) { |
| while (priv->speed_scan[pos] != 0) |
| len += sprintf(&buf[len], "%d ", |
| priv->speed_scan[pos++]); |
| return len + sprintf(&buf[len], "\n"); |
| } |
| |
| return sprintf(buf, "0\n"); |
| } |
| |
| static ssize_t store_speed_scan(struct device *d, struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct ipw_priv *priv = dev_get_drvdata(d); |
| int channel, pos = 0; |
| const char *p = buf; |
| |
| /* list of space separated channels to scan, optionally ending with 0 */ |
| while ((channel = simple_strtol(p, NULL, 0))) { |
| if (pos == MAX_SPEED_SCAN - 1) { |
| priv->speed_scan[pos] = 0; |
| break; |
| } |
| |
| if (libipw_is_valid_channel(priv->ieee, channel)) |
| priv->speed_scan[pos++] = channel; |
| else |
| IPW_WARNING("Skipping invalid channel request: %d\n", |
| channel); |
| p = strchr(p, ' '); |
| if (!p) |
| break; |
| while (*p == ' ' || *p == '\t') |
| p++; |
| } |
| |
| if (pos == 0) |
| priv->config &= ~CFG_SPEED_SCAN; |
| else { |
| priv->speed_scan_pos = 0; |
| priv->config |= CFG_SPEED_SCAN; |
| } |
| |
| return count; |
| } |
| |
| static DEVICE_ATTR(speed_scan, 0644, show_speed_scan, store_speed_scan); |
| |
| static ssize_t show_net_stats(struct device *d, struct device_attribute *attr, |
| char *buf) |
| { |
| struct ipw_priv *priv = dev_get_drvdata(d); |
| return sprintf(buf, "%c\n", (priv->config & CFG_NET_STATS) ? '1' : '0'); |
| } |
| |
| static ssize_t store_net_stats(struct device *d, struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct ipw_priv *priv = dev_get_drvdata(d); |
| if (buf[0] == '1') |
| priv->config |= CFG_NET_STATS; |
| else |
| priv->config &= ~CFG_NET_STATS; |
| |
| return count; |
| } |
| |
| static DEVICE_ATTR(net_stats, 0644, show_net_stats, store_net_stats); |
| |
| static ssize_t show_channels(struct device *d, |
| struct device_attribute *attr, |
| char *buf) |
| { |
| struct ipw_priv *priv = dev_get_drvdata(d); |
| const struct libipw_geo *geo = libipw_get_geo(priv->ieee); |
| int len = 0, i; |
| |
| len = sprintf(&buf[len], |
| "Displaying %d channels in 2.4Ghz band " |
| "(802.11bg):\n", geo->bg_channels); |
| |
| for (i = 0; i < geo->bg_channels; i++) { |
| len += sprintf(&buf[len], "%d: BSS%s%s, %s, Band %s.\n", |
| geo->bg[i].channel, |
| geo->bg[i].flags & LIBIPW_CH_RADAR_DETECT ? |
| " (radar spectrum)" : "", |
| ((geo->bg[i].flags & LIBIPW_CH_NO_IBSS) || |
| (geo->bg[i].flags & LIBIPW_CH_RADAR_DETECT)) |
| ? "" : ", IBSS", |
| geo->bg[i].flags & LIBIPW_CH_PASSIVE_ONLY ? |
| "passive only" : "active/passive", |
| geo->bg[i].flags & LIBIPW_CH_B_ONLY ? |
| "B" : "B/G"); |
| } |
| |
| len += sprintf(&buf[len], |
| "Displaying %d channels in 5.2Ghz band " |
| "(802.11a):\n", geo->a_channels); |
| for (i = 0; i < geo->a_channels; i++) { |
| len += sprintf(&buf[len], "%d: BSS%s%s, %s.\n", |
| geo->a[i].channel, |
| geo->a[i].flags & LIBIPW_CH_RADAR_DETECT ? |
| " (radar spectrum)" : "", |
| ((geo->a[i].flags & LIBIPW_CH_NO_IBSS) || |
| (geo->a[i].flags & LIBIPW_CH_RADAR_DETECT)) |
| ? "" : ", IBSS", |
| geo->a[i].flags & LIBIPW_CH_PASSIVE_ONLY ? |
| "passive only" : "active/passive"); |
| } |
| |
| return len; |
| } |
| |
| static DEVICE_ATTR(channels, 0400, show_channels, NULL); |
| |
| static void notify_wx_assoc_event(struct ipw_priv *priv) |
| { |
| union iwreq_data wrqu; |
| wrqu.ap_addr.sa_family = ARPHRD_ETHER; |
| if (priv->status & STATUS_ASSOCIATED) |
| memcpy(wrqu.ap_addr.sa_data, priv->bssid, ETH_ALEN); |
| else |
| eth_zero_addr(wrqu.ap_addr.sa_data); |
| wireless_send_event(priv->net_dev, SIOCGIWAP, &wrqu, NULL); |
| } |
| |
| static void ipw_irq_tasklet(unsigned long data) |
| { |
| struct ipw_priv *priv = (struct ipw_priv *)data; |
| u32 inta, inta_mask, handled = 0; |
| unsigned long flags; |
| int rc = 0; |
| |
| spin_lock_irqsave(&priv->irq_lock, flags); |
| |
| inta = ipw_read32(priv, IPW_INTA_RW); |
| inta_mask = ipw_read32(priv, IPW_INTA_MASK_R); |
| |
| if (inta == 0xFFFFFFFF) { |
| /* Hardware disappeared */ |
| IPW_WARNING("TASKLET INTA == 0xFFFFFFFF\n"); |
| /* Only handle the cached INTA values */ |
| inta = 0; |
| } |
| inta &= (IPW_INTA_MASK_ALL & inta_mask); |
| |
| /* Add any cached INTA values that need to be handled */ |
| inta |= priv->isr_inta; |
| |
| spin_unlock_irqrestore(&priv->irq_lock, flags); |
| |
| spin_lock_irqsave(&priv->lock, flags); |
| |
| /* handle all the justifications for the interrupt */ |
| if (inta & IPW_INTA_BIT_RX_TRANSFER) { |
| ipw_rx(priv); |
| handled |= IPW_INTA_BIT_RX_TRANSFER; |
| } |
| |
| if (inta & IPW_INTA_BIT_TX_CMD_QUEUE) { |
| IPW_DEBUG_HC("Command completed.\n"); |
| rc = ipw_queue_tx_reclaim(priv, &priv->txq_cmd, -1); |
| priv->status &= ~STATUS_HCMD_ACTIVE; |
| wake_up_interruptible(&priv->wait_command_queue); |
| handled |= IPW_INTA_BIT_TX_CMD_QUEUE; |
| } |
| |
| if (inta & IPW_INTA_BIT_TX_QUEUE_1) { |
| IPW_DEBUG_TX("TX_QUEUE_1\n"); |
| rc = ipw_queue_tx_reclaim(priv, &priv->txq[0], 0); |
| handled |= IPW_INTA_BIT_TX_QUEUE_1; |
| } |
| |
| if (inta & IPW_INTA_BIT_TX_QUEUE_2) { |
| IPW_DEBUG_TX("TX_QUEUE_2\n"); |
| rc = ipw_queue_tx_reclaim(priv, &priv->txq[1], 1); |
| handled |= IPW_INTA_BIT_TX_QUEUE_2; |
| } |
| |
| if (inta & IPW_INTA_BIT_TX_QUEUE_3) { |
| IPW_DEBUG_TX("TX_QUEUE_3\n"); |
| rc = ipw_queue_tx_reclaim(priv, &priv->txq[2], 2); |
| handled |= IPW_INTA_BIT_TX_QUEUE_3; |
| } |
| |
| if (inta & IPW_INTA_BIT_TX_QUEUE_4) { |
| IPW_DEBUG_TX("TX_QUEUE_4\n"); |
| rc = ipw_queue_tx_reclaim(priv, &priv->txq[3], 3); |
| handled |= IPW_INTA_BIT_TX_QUEUE_4; |
| } |
| |
| if (inta & IPW_INTA_BIT_STATUS_CHANGE) { |
| IPW_WARNING("STATUS_CHANGE\n"); |
| handled |= IPW_INTA_BIT_STATUS_CHANGE; |
| } |
| |
| if (inta & IPW_INTA_BIT_BEACON_PERIOD_EXPIRED) { |
| IPW_WARNING("TX_PERIOD_EXPIRED\n"); |
| handled |= IPW_INTA_BIT_BEACON_PERIOD_EXPIRED; |
| } |
| |
| if (inta & IPW_INTA_BIT_SLAVE_MODE_HOST_CMD_DONE) { |
| IPW_WARNING("HOST_CMD_DONE\n"); |
| handled |= IPW_INTA_BIT_SLAVE_MODE_HOST_CMD_DONE; |
| } |
| |
| if (inta & IPW_INTA_BIT_FW_INITIALIZATION_DONE) { |
| IPW_WARNING("FW_INITIALIZATION_DONE\n"); |
| handled |= IPW_INTA_BIT_FW_INITIALIZATION_DONE; |
| } |
| |
| if (inta & IPW_INTA_BIT_FW_CARD_DISABLE_PHY_OFF_DONE) { |
| IPW_WARNING("PHY_OFF_DONE\n"); |
| handled |= IPW_INTA_BIT_FW_CARD_DISABLE_PHY_OFF_DONE; |
| } |
| |
| if (inta & IPW_INTA_BIT_RF_KILL_DONE) { |
| IPW_DEBUG_RF_KILL("RF_KILL_DONE\n"); |
| priv->status |= STATUS_RF_KILL_HW; |
| wiphy_rfkill_set_hw_state(priv->ieee->wdev.wiphy, true); |
| wake_up_interruptible(&priv->wait_command_queue); |
| priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING); |
| cancel_delayed_work(&priv->request_scan); |
| cancel_delayed_work(&priv->request_direct_scan); |
| cancel_delayed_work(&priv->request_passive_scan); |
| cancel_delayed_work(&priv->scan_event); |
| schedule_work(&priv->link_down); |
| schedule_delayed_work(&priv->rf_kill, 2 * HZ); |
| handled |= IPW_INTA_BIT_RF_KILL_DONE; |
| } |
| |
| if (inta & IPW_INTA_BIT_FATAL_ERROR) { |
| IPW_WARNING("Firmware error detected. Restarting.\n"); |
| if (priv->error) { |
| IPW_DEBUG_FW("Sysfs 'error' log already exists.\n"); |
| if (ipw_debug_level & IPW_DL_FW_ERRORS) { |
| struct ipw_fw_error *error = |
| ipw_alloc_error_log(priv); |
| ipw_dump_error_log(priv, error); |
| kfree(error); |
| } |
| } else { |
| priv->error = ipw_alloc_error_log(priv); |
| if (priv->error) |
| IPW_DEBUG_FW("Sysfs 'error' log captured.\n"); |
| else |
| IPW_DEBUG_FW("Error allocating sysfs 'error' " |
| "log.\n"); |
| if (ipw_debug_level & IPW_DL_FW_ERRORS) |
| ipw_dump_error_log(priv, priv->error); |
| } |
| |
| /* XXX: If hardware encryption is for WPA/WPA2, |
| * we have to notify the supplicant. */ |
| if (priv->ieee->sec.encrypt) { |
| priv->status &= ~STATUS_ASSOCIATED; |
| notify_wx_assoc_event(priv); |
| } |
| |
| /* Keep the restart process from trying to send host |
| * commands by clearing the INIT status bit */ |
| priv->status &= ~STATUS_INIT; |
| |
| /* Cancel currently queued command. */ |
| priv->status &= ~STATUS_HCMD_ACTIVE; |
| wake_up_interruptible(&priv->wait_command_queue); |
| |
| schedule_work(&priv->adapter_restart); |
| handled |= IPW_INTA_BIT_FATAL_ERROR; |
| } |
| |
| if (inta & IPW_INTA_BIT_PARITY_ERROR) { |
| IPW_ERROR("Parity error\n"); |
| handled |= IPW_INTA_BIT_PARITY_ERROR; |
| } |
| |
| if (handled != inta) { |
| IPW_ERROR("Unhandled INTA bits 0x%08x\n", inta & ~handled); |
| } |
| |
| spin_unlock_irqrestore(&priv->lock, flags); |
| |
| /* enable all interrupts */ |
| ipw_enable_interrupts(priv); |
| } |
| |
| #define IPW_CMD(x) case IPW_CMD_ ## x : return #x |
| static char *get_cmd_string(u8 cmd) |
| { |
| switch (cmd) { |
| IPW_CMD(HOST_COMPLETE); |
| IPW_CMD(POWER_DOWN); |
| IPW_CMD(SYSTEM_CONFIG); |
| IPW_CMD(MULTICAST_ADDRESS); |
| IPW_CMD(SSID); |
| IPW_CMD(ADAPTER_ADDRESS); |
| IPW_CMD(PORT_TYPE); |
| IPW_CMD(RTS_THRESHOLD); |
| IPW_CMD(FRAG_THRESHOLD); |
| IPW_CMD(POWER_MODE); |
| IPW_CMD(WEP_KEY); |
| IPW_CMD(TGI_TX_KEY); |
| IPW_CMD(SCAN_REQUEST); |
| IPW_CMD(SCAN_REQUEST_EXT); |
| IPW_CMD(ASSOCIATE); |
| IPW_CMD(SUPPORTED_RATES); |
| IPW_CMD(SCAN_ABORT); |
| IPW_CMD(TX_FLUSH); |
| IPW_CMD(QOS_PARAMETERS); |
| IPW_CMD(DINO_CONFIG); |
| IPW_CMD(RSN_CAPABILITIES); |
| IPW_CMD(RX_KEY); |
| IPW_CMD(CARD_DISABLE); |
| IPW_CMD(SEED_NUMBER); |
| IPW_CMD(TX_POWER); |
| IPW_CMD(COUNTRY_INFO); |
| IPW_CMD(AIRONET_INFO); |
| IPW_CMD(AP_TX_POWER); |
| IPW_CMD(CCKM_INFO); |
| IPW_CMD(CCX_VER_INFO); |
| IPW_CMD(SET_CALIBRATION); |
| IPW_CMD(SENSITIVITY_CALIB); |
| IPW_CMD(RETRY_LIMIT); |
| IPW_CMD(IPW_PRE_POWER_DOWN); |
| IPW_CMD(VAP_BEACON_TEMPLATE); |
| IPW_CMD(VAP_DTIM_PERIOD); |
| IPW_CMD(EXT_SUPPORTED_RATES); |
| IPW_CMD(VAP_LOCAL_TX_PWR_CONSTRAINT); |
| IPW_CMD(VAP_QUIET_INTERVALS); |
| IPW_CMD(VAP_CHANNEL_SWITCH); |
| IPW_CMD(VAP_MANDATORY_CHANNELS); |
| IPW_CMD(VAP_CELL_PWR_LIMIT); |
| IPW_CMD(VAP_CF_PARAM_SET); |
| IPW_CMD(VAP_SET_BEACONING_STATE); |
| IPW_CMD(MEASUREMENT); |
| IPW_CMD(POWER_CAPABILITY); |
| IPW_CMD(SUPPORTED_CHANNELS); |
| IPW_CMD(TPC_REPORT); |
| IPW_CMD(WME_INFO); |
| IPW_CMD(PRODUCTION_COMMAND); |
| default: |
| return "UNKNOWN"; |
| } |
| } |
| |
| #define HOST_COMPLETE_TIMEOUT HZ |
| |
| static int __ipw_send_cmd(struct ipw_priv *priv, struct host_cmd *cmd) |
| { |
| int rc = 0; |
| unsigned long flags; |
| unsigned long now, end; |
| |
| spin_lock_irqsave(&priv->lock, flags); |
| if (priv->status & STATUS_HCMD_ACTIVE) { |
| IPW_ERROR("Failed to send %s: Already sending a command.\n", |
| get_cmd_string(cmd->cmd)); |
| spin_unlock_irqrestore(&priv->lock, flags); |
| return -EAGAIN; |
| } |
| |
| priv->status |= STATUS_HCMD_ACTIVE; |
| |
| if (priv->cmdlog) { |
| priv->cmdlog[priv->cmdlog_pos].jiffies = jiffies; |
| priv->cmdlog[priv->cmdlog_pos].cmd.cmd = cmd->cmd; |
| priv->cmdlog[priv->cmdlog_pos].cmd.len = cmd->len; |
| memcpy(priv->cmdlog[priv->cmdlog_pos].cmd.param, cmd->param, |
| cmd->len); |
| priv->cmdlog[priv->cmdlog_pos].retcode = -1; |
| } |
| |
| IPW_DEBUG_HC("%s command (#%d) %d bytes: 0x%08X\n", |
| get_cmd_string(cmd->cmd), cmd->cmd, cmd->len, |
| priv->status); |
| |
| #ifndef DEBUG_CMD_WEP_KEY |
| if (cmd->cmd == IPW_CMD_WEP_KEY) |
| IPW_DEBUG_HC("WEP_KEY command masked out for secure.\n"); |
| else |
| #endif |
| printk_buf(IPW_DL_HOST_COMMAND, (u8 *) cmd->param, cmd->len); |
| |
| rc = ipw_queue_tx_hcmd(priv, cmd->cmd, cmd->param, cmd->len, 0); |
| if (rc) { |
| priv->status &= ~STATUS_HCMD_ACTIVE; |
| IPW_ERROR("Failed to send %s: Reason %d\n", |
| get_cmd_string(cmd->cmd), rc); |
| spin_unlock_irqrestore(&priv->lock, flags); |
| goto exit; |
| } |
| spin_unlock_irqrestore(&priv->lock, flags); |
| |
| now = jiffies; |
| end = now + HOST_COMPLETE_TIMEOUT; |
| again: |
| rc = wait_event_interruptible_timeout(priv->wait_command_queue, |
| !(priv-> |
| status & STATUS_HCMD_ACTIVE), |
| end - now); |
| if (rc < 0) { |
| now = jiffies; |
| if (time_before(now, end)) |
| goto again; |
| rc = 0; |
| } |
| |
| if (rc == 0) { |
| spin_lock_irqsave(&priv->lock, flags); |
| if (priv->status & STATUS_HCMD_ACTIVE) { |
| IPW_ERROR("Failed to send %s: Command timed out.\n", |
| get_cmd_string(cmd->cmd)); |
| priv->status &= ~STATUS_HCMD_ACTIVE; |
| spin_unlock_irqrestore(&priv->lock, flags); |
| rc = -EIO; |
| goto exit; |
| } |
| spin_unlock_irqrestore(&priv->lock, flags); |
| } else |
| rc = 0; |
| |
| if (priv->status & STATUS_RF_KILL_HW) { |
| IPW_ERROR("Failed to send %s: Aborted due to RF kill switch.\n", |
| get_cmd_string(cmd->cmd)); |
| rc = -EIO; |
| goto exit; |
| } |
| |
| exit: |
| if (priv->cmdlog) { |
| priv->cmdlog[priv->cmdlog_pos++].retcode = rc; |
| priv->cmdlog_pos %= priv->cmdlog_len; |
| } |
| return rc; |
| } |
| |
| static int ipw_send_cmd_simple(struct ipw_priv *priv, u8 command) |
| { |
| struct host_cmd cmd = { |
| .cmd = command, |
| }; |
| |
| return __ipw_send_cmd(priv, &cmd); |
| } |
| |
| static int ipw_send_cmd_pdu(struct ipw_priv *priv, u8 command, u8 len, |
| void *data) |
| { |
| struct host_cmd cmd = { |
| .cmd = command, |
| .len = len, |
| .param = data, |
| }; |
| |
| return __ipw_send_cmd(priv, &cmd); |
| } |
| |
| static int ipw_send_host_complete(struct ipw_priv *priv) |
| { |
| if (!priv) { |
| IPW_ERROR("Invalid args\n"); |
| return -1; |
| } |
| |
| return ipw_send_cmd_simple(priv, IPW_CMD_HOST_COMPLETE); |
| } |
| |
| static int ipw_send_system_config(struct ipw_priv *priv) |
| { |
| return ipw_send_cmd_pdu(priv, IPW_CMD_SYSTEM_CONFIG, |
| sizeof(priv->sys_config), |
| &priv->sys_config); |
| } |
| |
| static int ipw_send_ssid(struct ipw_priv *priv, u8 * ssid, int len) |
| { |
| if (!priv || !ssid) { |
| IPW_ERROR("Invalid args\n"); |
| return -1; |
| } |
| |
| return ipw_send_cmd_pdu(priv, IPW_CMD_SSID, min(len, IW_ESSID_MAX_SIZE), |
| ssid); |
| } |
| |
| static int ipw_send_adapter_address(struct ipw_priv *priv, u8 * mac) |
| { |
| if (!priv || !mac) { |
| IPW_ERROR("Invalid args\n"); |
| return -1; |
| } |
| |
| IPW_DEBUG_INFO("%s: Setting MAC to %pM\n", |
| priv->net_dev->name, mac); |
| |
| return ipw_send_cmd_pdu(priv, IPW_CMD_ADAPTER_ADDRESS, ETH_ALEN, mac); |
| } |
| |
| static void ipw_adapter_restart(void *adapter) |
| { |
| struct ipw_priv *priv = adapter; |
| |
| if (priv->status & STATUS_RF_KILL_MASK) |
| return; |
| |
| ipw_down(priv); |
| |
| if (priv->assoc_network && |
| (priv->assoc_network->capability & WLAN_CAPABILITY_IBSS)) |
| ipw_remove_current_network(priv); |
| |
| if (ipw_up(priv)) { |
| IPW_ERROR("Failed to up device\n"); |
| return; |
| } |
| } |
| |
| static void ipw_bg_adapter_restart(struct work_struct *work) |
| { |
| struct ipw_priv *priv = |
| container_of(work, struct ipw_priv, adapter_restart); |
| mutex_lock(&priv->mutex); |
| ipw_adapter_restart(priv); |
| mutex_unlock(&priv->mutex); |
| } |
| |
| static void ipw_abort_scan(struct ipw_priv *priv); |
| |
| #define IPW_SCAN_CHECK_WATCHDOG (5 * HZ) |
| |
| static void ipw_scan_check(void *data) |
| { |
| struct ipw_priv *priv = data; |
| |
| if (priv->status & STATUS_SCAN_ABORTING) { |
| IPW_DEBUG_SCAN("Scan completion watchdog resetting " |
| "adapter after (%dms).\n", |
| jiffies_to_msecs(IPW_SCAN_CHECK_WATCHDOG)); |
| schedule_work(&priv->adapter_restart); |
| } else if (priv->status & STATUS_SCANNING) { |
| IPW_DEBUG_SCAN("Scan completion watchdog aborting scan " |
| "after (%dms).\n", |
| jiffies_to_msecs(IPW_SCAN_CHECK_WATCHDOG)); |
| ipw_abort_scan(priv); |
| schedule_delayed_work(&priv->scan_check, HZ); |
| } |
| } |
| |
| static void ipw_bg_scan_check(struct work_struct *work) |
| { |
| struct ipw_priv *priv = |
| container_of(work, struct ipw_priv, scan_check.work); |
| mutex_lock(&priv->mutex); |
| ipw_scan_check(priv); |
| mutex_unlock(&priv->mutex); |
| } |
| |
| static int ipw_send_scan_request_ext(struct ipw_priv *priv, |
| struct ipw_scan_request_ext *request) |
| { |
| return ipw_send_cmd_pdu(priv, IPW_CMD_SCAN_REQUEST_EXT, |
| sizeof(*request), request); |
| } |
| |
| static int ipw_send_scan_abort(struct ipw_priv *priv) |
| { |
| if (!priv) { |
| IPW_ERROR("Invalid args\n"); |
| return -1; |
| } |
| |
| return ipw_send_cmd_simple(priv, IPW_CMD_SCAN_ABORT); |
| } |
| |
| static int ipw_set_sensitivity(struct ipw_priv *priv, u16 sens) |
| { |
| struct ipw_sensitivity_calib calib = { |
| .beacon_rssi_raw = cpu_to_le16(sens), |
| }; |
| |
| return ipw_send_cmd_pdu(priv, IPW_CMD_SENSITIVITY_CALIB, sizeof(calib), |
| &calib); |
| } |
| |
| static int ipw_send_associate(struct ipw_priv *priv, |
| struct ipw_associate *associate) |
| { |
| if (!priv || !associate) { |
| IPW_ERROR("Invalid args\n"); |
| return -1; |
| } |
| |
| return ipw_send_cmd_pdu(priv, IPW_CMD_ASSOCIATE, sizeof(*associate), |
| associate); |
| } |
| |
| static int ipw_send_supported_rates(struct ipw_priv *priv, |
| struct ipw_supported_rates *rates) |
| { |
| if (!priv || !rates) { |
| IPW_ERROR("Invalid args\n"); |
| return -1; |
| } |
| |
| return ipw_send_cmd_pdu(priv, IPW_CMD_SUPPORTED_RATES, sizeof(*rates), |
| rates); |
| } |
| |
| static int ipw_set_random_seed(struct ipw_priv *priv) |
| { |
| u32 val; |
| |
| if (!priv) { |
| IPW_ERROR("Invalid args\n"); |
| return -1; |
| } |
| |
| get_random_bytes(&val, sizeof(val)); |
| |
| return ipw_send_cmd_pdu(priv, IPW_CMD_SEED_NUMBER, sizeof(val), &val); |
| } |
| |
| static int ipw_send_card_disable(struct ipw_priv *priv, u32 phy_off) |
| { |
| __le32 v = cpu_to_le32(phy_off); |
| if (!priv) { |
| IPW_ERROR("Invalid args\n"); |
| return -1; |
| } |
| |
| return ipw_send_cmd_pdu(priv, IPW_CMD_CARD_DISABLE, sizeof(v), &v); |
| } |
| |
| static int ipw_send_tx_power(struct ipw_priv *priv, struct ipw_tx_power *power) |
| { |
| if (!priv || !power) { |
| IPW_ERROR("Invalid args\n"); |
| return -1; |
| } |
| |
| return ipw_send_cmd_pdu(priv, IPW_CMD_TX_POWER, sizeof(*power), power); |
| } |
| |
| static int ipw_set_tx_power(struct ipw_priv *priv) |
| { |
| const struct libipw_geo *geo = libipw_get_geo(priv->ieee); |
| struct ipw_tx_power tx_power; |
| s8 max_power; |
| int i; |
| |
| memset(&tx_power, 0, sizeof(tx_power)); |
| |
| /* configure device for 'G' band */ |
| tx_power.ieee_mode = IPW_G_MODE; |
| tx_power.num_channels = geo->bg_channels; |
| for (i = 0; i < geo->bg_channels; i++) { |
| max_power = geo->bg[i].max_power; |
| tx_power.channels_tx_power[i].channel_number = |
| geo->bg[i].channel; |
| tx_power.channels_tx_power[i].tx_power = max_power ? |
| min(max_power, priv->tx_power) : priv->tx_power; |
| } |
| if (ipw_send_tx_power(priv, &tx_power)) |
| return -EIO; |
| |
| /* configure device to also handle 'B' band */ |
| tx_power.ieee_mode = IPW_B_MODE; |
| if (ipw_send_tx_power(priv, &tx_power)) |
| return -EIO; |
| |
| /* configure device to also handle 'A' band */ |
| if (priv->ieee->abg_true) { |
| tx_power.ieee_mode = IPW_A_MODE; |
| tx_power.num_channels = geo->a_channels; |
| for (i = 0; i < tx_power.num_channels; i++) { |
| max_power = geo->a[i].max_power; |
| tx_power.channels_tx_power[i].channel_number = |
| geo->a[i].channel; |
| tx_power.channels_tx_power[i].tx_power = max_power ? |
| min(max_power, priv->tx_power) : priv->tx_power; |
| } |
| if (ipw_send_tx_power(priv, &tx_power)) |
| return -EIO; |
| } |
| return 0; |
| } |
| |
| static int ipw_send_rts_threshold(struct ipw_priv *priv, u16 rts) |
| { |
| struct ipw_rts_threshold rts_threshold = { |
| .rts_threshold = cpu_to_le16(rts), |
| }; |
| |
| if (!priv) { |
| IPW_ERROR("Invalid args\n"); |
| return -1; |
| } |
| |
| return ipw_send_cmd_pdu(priv, IPW_CMD_RTS_THRESHOLD, |
| sizeof(rts_threshold), &rts_threshold); |
| } |
| |
| static int ipw_send_frag_threshold(struct ipw_priv *priv, u16 frag) |
| { |
| struct ipw_frag_threshold frag_threshold = { |
| .frag_threshold = cpu_to_le16(frag), |
| }; |
| |
| if (!priv) { |
| IPW_ERROR("Invalid args\n"); |
| return -1; |
| } |
| |
| return ipw_send_cmd_pdu(priv, IPW_CMD_FRAG_THRESHOLD, |
| sizeof(frag_threshold), &frag_threshold); |
| } |
| |
| static int ipw_send_power_mode(struct ipw_priv *priv, u32 mode) |
| { |
| __le32 param; |
| |
| if (!priv) { |
| IPW_ERROR("Invalid args\n"); |
| return -1; |
| } |
| |
| /* If on battery, set to 3, if AC set to CAM, else user |
| * level */ |
| switch (mode) { |
| case IPW_POWER_BATTERY: |
| param = cpu_to_le32(IPW_POWER_INDEX_3); |
| break; |
| case IPW_POWER_AC: |
| param = cpu_to_le32(IPW_POWER_MODE_CAM); |
| break; |
| default: |
| param = cpu_to_le32(mode); |
| break; |
| } |
| |
| return ipw_send_cmd_pdu(priv, IPW_CMD_POWER_MODE, sizeof(param), |
| ¶m); |
| } |
| |
| static int ipw_send_retry_limit(struct ipw_priv *priv, u8 slimit, u8 llimit) |
| { |
| struct ipw_retry_limit retry_limit = { |
| .short_retry_limit = slimit, |
| .long_retry_limit = llimit |
| }; |
| |
| if (!priv) { |
| IPW_ERROR("Invalid args\n"); |
| return -1; |
| } |
| |
| return ipw_send_cmd_pdu(priv, IPW_CMD_RETRY_LIMIT, sizeof(retry_limit), |
| &retry_limit); |
| } |
| |
| /* |
| * The IPW device contains a Microwire compatible EEPROM that stores |
| * various data like the MAC address. Usually the firmware has exclusive |
| * access to the eeprom, but during device initialization (before the |
| * device driver has sent the HostComplete command to the firmware) the |
| * device driver has read access to the EEPROM by way of indirect addressing |
| * through a couple of memory mapped registers. |
| * |
| * The following is a simplified implementation for pulling data out of the |
| * the eeprom, along with some helper functions to find information in |
| * the per device private data's copy of the eeprom. |
| * |
| * NOTE: To better understand how these functions work (i.e what is a chip |
| * select and why do have to keep driving the eeprom clock?), read |
| * just about any data sheet for a Microwire compatible EEPROM. |
| */ |
| |
| /* write a 32 bit value into the indirect accessor register */ |
| static inline void eeprom_write_reg(struct ipw_priv *p, u32 data) |
| { |
| ipw_write_reg32(p, FW_MEM_REG_EEPROM_ACCESS, data); |
| |
| /* the eeprom requires some time to complete the operation */ |
| udelay(p->eeprom_delay); |
| } |
| |
| /* perform a chip select operation */ |
| static void eeprom_cs(struct ipw_priv *priv) |
| { |
| eeprom_write_reg(priv, 0); |
| eeprom_write_reg(priv, EEPROM_BIT_CS); |
| eeprom_write_reg(priv, EEPROM_BIT_CS | EEPROM_BIT_SK); |
| eeprom_write_reg(priv, EEPROM_BIT_CS); |
| } |
| |
| /* perform a chip select operation */ |
| static void eeprom_disable_cs(struct ipw_priv *priv) |
| { |
| eeprom_write_reg(priv, EEPROM_BIT_CS); |
| eeprom_write_reg(priv, 0); |
| eeprom_write_reg(priv, EEPROM_BIT_SK); |
| } |
| |
| /* push a single bit down to the eeprom */ |
| static inline void eeprom_write_bit(struct ipw_priv *p, u8 bit) |
| { |
| int d = (bit ? EEPROM_BIT_DI : 0); |
| eeprom_write_reg(p, EEPROM_BIT_CS | d); |
| eeprom_write_reg(p, EEPROM_BIT_CS | d | EEPROM_BIT_SK); |
| } |
| |
| /* push an opcode followed by an address down to the eeprom */ |
| static void eeprom_op(struct ipw_priv *priv, u8 op, u8 addr) |
| { |
| int i; |
| |
| eeprom_cs(priv); |
| eeprom_write_bit(priv, 1); |
| eeprom_write_bit(priv, op & 2); |
| eeprom_write_bit(priv, op & 1); |
| for (i = 7; i >= 0; i--) { |
| eeprom_write_bit(priv, addr & (1 << i)); |
| } |
| } |
| |
| /* pull 16 bits off the eeprom, one bit at a time */ |
| static u16 eeprom_read_u16(struct ipw_priv *priv, u8 addr) |
| { |
| int i; |
| u16 r = 0; |
| |
| /* Send READ Opcode */ |
| eeprom_op(priv, EEPROM_CMD_READ, addr); |
| |
| /* Send dummy bit */ |
| eeprom_write_reg(priv, EEPROM_BIT_CS); |
| |
| /* Read the byte off the eeprom one bit at a time */ |
| for (i = 0; i < 16; i++) { |
| u32 data = 0; |
| eeprom_write_reg(priv, EEPROM_BIT_CS | EEPROM_BIT_SK); |
| eeprom_write_reg(priv, EEPROM_BIT_CS); |
| data = ipw_read_reg32(priv, FW_MEM_REG_EEPROM_ACCESS); |
| r = (r << 1) | ((data & EEPROM_BIT_DO) ? 1 : 0); |
| } |
| |
| /* Send another dummy bit */ |
| eeprom_write_reg(priv, 0); |
| eeprom_disable_cs(priv); |
| |
| return r; |
| } |
| |
| /* helper function for pulling the mac address out of the private */ |
| /* data's copy of the eeprom data */ |
| static void eeprom_parse_mac(struct ipw_priv *priv, u8 * mac) |
| { |
| memcpy(mac, &priv->eeprom[EEPROM_MAC_ADDRESS], ETH_ALEN); |
| } |
| |
| static void ipw_read_eeprom(struct ipw_priv *priv) |
| { |
| int i; |
| __le16 *eeprom = (__le16 *) priv->eeprom; |
| |
| IPW_DEBUG_TRACE(">>\n"); |
| |
| /* read entire contents of eeprom into private buffer */ |
| for (i = 0; i < 128; i++) |
| eeprom[i] = cpu_to_le16(eeprom_read_u16(priv, (u8) i)); |
| |
| IPW_DEBUG_TRACE("<<\n"); |
| } |
| |
| /* |
| * Either the device driver (i.e. the host) or the firmware can |
| * load eeprom data into the designated region in SRAM. If neither |
| * happens then the FW will shutdown with a fatal error. |
| * |
| * In order to signal the FW to load the EEPROM, the EEPROM_LOAD_DISABLE |
| * bit needs region of shared SRAM needs to be non-zero. |
| */ |
| static void ipw_eeprom_init_sram(struct ipw_priv *priv) |
| { |
| int i; |
| |
| IPW_DEBUG_TRACE(">>\n"); |
| |
| /* |
| If the data looks correct, then copy it to our private |
| copy. Otherwise let the firmware know to perform the operation |
| on its own. |
| */ |
| if (priv->eeprom[EEPROM_VERSION] != 0) { |
| IPW_DEBUG_INFO("Writing EEPROM data into SRAM\n"); |
| |
| /* write the eeprom data to sram */ |
| for (i = 0; i < IPW_EEPROM_IMAGE_SIZE; i++) |
| ipw_write8(priv, IPW_EEPROM_DATA + i, priv->eeprom[i]); |
| |
| /* Do not load eeprom data on fatal error or suspend */ |
| ipw_write32(priv, IPW_EEPROM_LOAD_DISABLE, 0); |
| } else { |
| IPW_DEBUG_INFO("Enabling FW initializationg of SRAM\n"); |
| |
| /* Load eeprom data on fatal error or suspend */ |
| ipw_write32(priv, IPW_EEPROM_LOAD_DISABLE, 1); |
| } |
| |
| IPW_DEBUG_TRACE("<<\n"); |
| } |
| |
| static void ipw_zero_memory(struct ipw_priv *priv, u32 start, u32 count) |
| { |
| count >>= 2; |
| if (!count) |
| return; |
| _ipw_write32(priv, IPW_AUTOINC_ADDR, start); |
| while (count--) |
| _ipw_write32(priv, IPW_AUTOINC_DATA, 0); |
| } |
| |
| static inline void ipw_fw_dma_reset_command_blocks(struct ipw_priv *priv) |
| { |
| ipw_zero_memory(priv, IPW_SHARED_SRAM_DMA_CONTROL, |
| CB_NUMBER_OF_ELEMENTS_SMALL * |
| sizeof(struct command_block)); |
| } |
| |
| static int ipw_fw_dma_enable(struct ipw_priv *priv) |
| { /* start dma engine but no transfers yet */ |
| |
| IPW_DEBUG_FW(">> :\n"); |
| |
| /* Start the dma */ |
| ipw_fw_dma_reset_command_blocks(priv); |
| |
| /* Write CB base address */ |
| ipw_write_reg32(priv, IPW_DMA_I_CB_BASE, IPW_SHARED_SRAM_DMA_CONTROL); |
| |
| IPW_DEBUG_FW("<< :\n"); |
| return 0; |
| } |
| |
| static void ipw_fw_dma_abort(struct ipw_priv *priv) |
| { |
| u32 control = 0; |
| |
| IPW_DEBUG_FW(">> :\n"); |
| |
| /* set the Stop and Abort bit */ |
| control = DMA_CONTROL_SMALL_CB_CONST_VALUE | DMA_CB_STOP_AND_ABORT; |
| ipw_write_reg32(priv, IPW_DMA_I_DMA_CONTROL, control); |
| priv->sram_desc.last_cb_index = 0; |
| |
| IPW_DEBUG_FW("<<\n"); |
| } |
| |
| static int ipw_fw_dma_write_command_block(struct ipw_priv *priv, int index, |
| struct command_block *cb) |
| { |
| u32 address = |
| IPW_SHARED_SRAM_DMA_CONTROL + |
| (sizeof(struct command_block) * index); |
| IPW_DEBUG_FW(">> :\n"); |
| |
| ipw_write_indirect(priv, address, (u8 *) cb, |
| (int)sizeof(struct command_block)); |
| |
| IPW_DEBUG_FW("<< :\n"); |
| return 0; |
| |
| } |
| |
| static int ipw_fw_dma_kick(struct ipw_priv *priv) |
| { |
| u32 control = 0; |
| u32 index = 0; |
| |
| IPW_DEBUG_FW(">> :\n"); |
| |
| for (index = 0; index < priv->sram_desc.last_cb_index; index++) |
| ipw_fw_dma_write_command_block(priv, index, |
| &priv->sram_desc.cb_list[index]); |
| |
| /* Enable the DMA in the CSR register */ |
| ipw_clear_bit(priv, IPW_RESET_REG, |
| IPW_RESET_REG_MASTER_DISABLED | |
| IPW_RESET_REG_STOP_MASTER); |
| |
| /* Set the Start bit. */ |
| control = DMA_CONTROL_SMALL_CB_CONST_VALUE | DMA_CB_START; |
| ipw_write_reg32(priv, IPW_DMA_I_DMA_CONTROL, control); |
| |
| IPW_DEBUG_FW("<< :\n"); |
| return 0; |
| } |
| |
| static void ipw_fw_dma_dump_command_block(struct ipw_priv *priv) |
| { |
| u32 address; |
| u32 register_value = 0; |
| u32 cb_fields_address = 0; |
| |
| IPW_DEBUG_FW(">> :\n"); |
| address = ipw_read_reg32(priv, IPW_DMA_I_CURRENT_CB); |
| IPW_DEBUG_FW_INFO("Current CB is 0x%x\n", address); |
| |
| /* Read the DMA Controlor register */ |
| register_value = ipw_read_reg32(priv, IPW_DMA_I_DMA_CONTROL); |
| IPW_DEBUG_FW_INFO("IPW_DMA_I_DMA_CONTROL is 0x%x\n", register_value); |
| |
| /* Print the CB values */ |
| cb_fields_address = address; |
| register_value = ipw_read_reg32(priv, cb_fields_address); |
| IPW_DEBUG_FW_INFO("Current CB Control Field is 0x%x\n", register_value); |
| |
| cb_fields_address += sizeof(u32); |
| register_value = ipw_read_reg32(priv, cb_fields_address); |
| IPW_DEBUG_FW_INFO("Current CB Source Field is 0x%x\n", register_value); |
| |
| cb_fields_address += sizeof(u32); |
| register_value = ipw_read_reg32(priv, cb_fields_address); |
| IPW_DEBUG_FW_INFO("Current CB Destination Field is 0x%x\n", |
| register_value); |
| |
| cb_fields_address += sizeof(u32); |
| register_value = ipw_read_reg32(priv, cb_fields_address); |
| IPW_DEBUG_FW_INFO("Current CB Status Field is 0x%x\n", register_value); |
| |
| IPW_DEBUG_FW(">> :\n"); |
| } |
| |
| static int ipw_fw_dma_command_block_index(struct ipw_priv *priv) |
| { |
| u32 current_cb_address = 0; |
| u32 current_cb_index = 0; |
| |
| IPW_DEBUG_FW("<< :\n"); |
| current_cb_address = ipw_read_reg32(priv, IPW_DMA_I_CURRENT_CB); |
| |
| current_cb_index = (current_cb_address - IPW_SHARED_SRAM_DMA_CONTROL) / |
| sizeof(struct command_block); |
| |
| IPW_DEBUG_FW_INFO("Current CB index 0x%x address = 0x%X\n", |
| current_cb_index, current_cb_address); |
| |
| IPW_DEBUG_FW(">> :\n"); |
| return current_cb_index; |
| |
| } |
| |
| static int ipw_fw_dma_add_command_block(struct ipw_priv *priv, |
| u32 src_address, |
| u32 dest_address, |
| u32 length, |
| int interrupt_enabled, int is_last) |
| { |
| |
| u32 control = CB_VALID | CB_SRC_LE | CB_DEST_LE | CB_SRC_AUTOINC | |
| CB_SRC_IO_GATED | CB_DEST_AUTOINC | CB_SRC_SIZE_LONG | |
| CB_DEST_SIZE_LONG; |
| struct command_block *cb; |
| u32 last_cb_element = 0; |
| |
| IPW_DEBUG_FW_INFO("src_address=0x%x dest_address=0x%x length=0x%x\n", |
| src_address, dest_address, length); |
| |
| if (priv->sram_desc.last_cb_index >= CB_NUMBER_OF_ELEMENTS_SMALL) |
| return -1; |
| |
| last_cb_element = priv->sram_desc.last_cb_index; |
| cb = &priv->sram_desc.cb_list[last_cb_element]; |
| priv->sram_desc.last_cb_index++; |
| |
| /* Calculate the new CB control word */ |
| if (interrupt_enabled) |
| control |= CB_INT_ENABLED; |
| |
| if (is_last) |
| control |= CB_LAST_VALID; |
| |
| control |= length; |
| |
| /* Calculate the CB Element's checksum value */ |
| cb->status = control ^ src_address ^ dest_address; |
| |
| /* Copy the Source and Destination addresses */ |
| cb->dest_addr = dest_address; |
| cb->source_addr = src_address; |
| |
| /* Copy the Control Word last */ |
| cb->control = control; |
| |
| return 0; |
| } |
| |
| static int ipw_fw_dma_add_buffer(struct ipw_priv *priv, dma_addr_t *src_address, |
| int nr, u32 dest_address, u32 len) |
| { |
| int ret, i; |
| u32 size; |
| |
| IPW_DEBUG_FW(">>\n"); |
| IPW_DEBUG_FW_INFO("nr=%d dest_address=0x%x len=0x%x\n", |
| nr, dest_address, len); |
| |
| for (i = 0; i < nr; i++) { |
| size = min_t(u32, len - i * CB_MAX_LENGTH, CB_MAX_LENGTH); |
| ret = ipw_fw_dma_add_command_block(priv, src_address[i], |
| dest_address + |
| i * CB_MAX_LENGTH, size, |
| 0, 0); |
| if (ret) { |
| IPW_DEBUG_FW_INFO(": Failed\n"); |
| return -1; |
| } else |
| IPW_DEBUG_FW_INFO(": Added new cb\n"); |
| } |
| |
| IPW_DEBUG_FW("<<\n"); |
| return 0; |
| } |
| |
| static int ipw_fw_dma_wait(struct ipw_priv *priv) |
| { |
| u32 current_index = 0, previous_index; |
| u32 watchdog = 0; |
| |
| IPW_DEBUG_FW(">> :\n"); |
| |
| current_index = ipw_fw_dma_command_block_index(priv); |
| IPW_DEBUG_FW_INFO("sram_desc.last_cb_index:0x%08X\n", |
| (int)priv->sram_desc.last_cb_index); |
| |
| while (current_index < priv->sram_desc.last_cb_index) { |
| udelay(50); |
| previous_index = current_index; |
| current_index = ipw_fw_dma_command_block_index(priv); |
| |
| if (previous_index < current_index) { |
| watchdog = 0; |
| continue; |
| } |
| if (++watchdog > 400) { |
| IPW_DEBUG_FW_INFO("Timeout\n"); |
| ipw_fw_dma_dump_command_block(priv); |
| ipw_fw_dma_abort(priv); |
| return -1; |
| } |
| } |
| |
| ipw_fw_dma_abort(priv); |
| |
| /*Disable the DMA in the CSR register */ |
| ipw_set_bit(priv, IPW_RESET_REG, |
| IPW_RESET_REG_MASTER_DISABLED | IPW_RESET_REG_STOP_MASTER); |
| |
| IPW_DEBUG_FW("<< dmaWaitSync\n"); |
| return 0; |
| } |
| |
| static void ipw_remove_current_network(struct ipw_priv *priv) |
| { |
| struct list_head *element, *safe; |
| struct libipw_network *network = NULL; |
| unsigned long flags; |
| |
| spin_lock_irqsave(&priv->ieee->lock, flags); |
| list_for_each_safe(element, safe, &priv->ieee->network_list) { |
| network = list_entry(element, struct libipw_network, list); |
| if (ether_addr_equal(network->bssid, priv->bssid)) { |
| list_del(element); |
| list_add_tail(&network->list, |
| &priv->ieee->network_free_list); |
| } |
| } |
| spin_unlock_irqrestore(&priv->ieee->lock, flags); |
| } |
| |
| /** |
| * Check that card is still alive. |
| * Reads debug register from domain0. |
| * If card is present, pre-defined value should |
| * be found there. |
| * |
| * @param priv |
| * @return 1 if card is present, 0 otherwise |
| */ |
| static inline int ipw_alive(struct ipw_priv *priv) |
| { |
| return ipw_read32(priv, 0x90) == 0xd55555d5; |
| } |
| |
| /* timeout in msec, attempted in 10-msec quanta */ |
| static int ipw_poll_bit(struct ipw_priv *priv, u32 addr, u32 mask, |
| int timeout) |
| { |
| int i = 0; |
| |
| do { |
| if ((ipw_read32(priv, addr) & mask) == mask) |
| return i; |
| mdelay(10); |
| i += 10; |
| } while (i < timeout); |
| |
| return -ETIME; |
| } |
| |
| /* These functions load the firmware and micro code for the operation of |
| * the ipw hardware. It assumes the buffer has all the bits for the |
| * image and the caller is handling the memory allocation and clean up. |
| */ |
| |
| static int ipw_stop_master(struct ipw_priv *priv) |
| { |
| int rc; |
| |
| IPW_DEBUG_TRACE(">>\n"); |
| /* stop master. typical delay - 0 */ |
| ipw_set_bit(priv, IPW_RESET_REG, IPW_RESET_REG_STOP_MASTER); |
| |
| /* timeout is in msec, polled in 10-msec quanta */ |
| rc = ipw_poll_bit(priv, IPW_RESET_REG, |
| IPW_RESET_REG_MASTER_DISABLED, 100); |
| if (rc < 0) { |
| IPW_ERROR("wait for stop master failed after 100ms\n"); |
| return -1; |
| } |
| |
| IPW_DEBUG_INFO("stop master %dms\n", rc); |
| |
| return rc; |
| } |
| |
| static void ipw_arc_release(struct ipw_priv *priv) |
| { |
| IPW_DEBUG_TRACE(">>\n"); |
| mdelay(5); |
| |
| ipw_clear_bit(priv, IPW_RESET_REG, CBD_RESET_REG_PRINCETON_RESET); |
| |
| /* no one knows timing, for safety add some delay */ |
| mdelay(5); |
| } |
| |
| struct fw_chunk { |
| __le32 address; |
| __le32 length; |
| }; |
| |
| static int ipw_load_ucode(struct ipw_priv *priv, u8 * data, size_t len) |
| { |
| int rc = 0, i, addr; |
| u8 cr = 0; |
| __le16 *image; |
| |
| image = (__le16 *) data; |
| |
| IPW_DEBUG_TRACE(">>\n"); |
| |
| rc = ipw_stop_master(priv); |
| |
| if (rc < 0) |
| return rc; |
| |
| for (addr = IPW_SHARED_LOWER_BOUND; |
| addr < IPW_REGISTER_DOMAIN1_END; addr += 4) { |
| ipw_write32(priv, addr, 0); |
| } |
| |
| /* no ucode (yet) */ |
| memset(&priv->dino_alive, 0, sizeof(priv->dino_alive)); |
| /* destroy DMA queues */ |
| /* reset sequence */ |
| |
| ipw_write_reg32(priv, IPW_MEM_HALT_AND_RESET, IPW_BIT_HALT_RESET_ON); |
| ipw_arc_release(priv); |
| ipw_write_reg32(priv, IPW_MEM_HALT_AND_RESET, IPW_BIT_HALT_RESET_OFF); |
| mdelay(1); |
| |
| /* reset PHY */ |
| ipw_write_reg32(priv, IPW_INTERNAL_CMD_EVENT, IPW_BASEBAND_POWER_DOWN); |
| mdelay(1); |
| |
| ipw_write_reg32(priv, IPW_INTERNAL_CMD_EVENT, 0); |
| mdelay(1); |
| |
| /* enable ucode store */ |
| ipw_write_reg8(priv, IPW_BASEBAND_CONTROL_STATUS, 0x0); |
| ipw_write_reg8(priv, IPW_BASEBAND_CONTROL_STATUS, DINO_ENABLE_CS); |
| mdelay(1); |
| |
| /* write ucode */ |
| /** |
| * @bug |
| * Do NOT set indirect address register once and then |
| * store data to indirect data register in the loop. |
| * It seems very reasonable, but in this case DINO do not |
| * accept ucode. It is essential to set address each time. |
| */ |
| /* load new ipw uCode */ |
| for (i = 0; i < len / 2; i++) |
| ipw_write_reg16(priv, IPW_BASEBAND_CONTROL_STORE, |
| le16_to_cpu(image[i])); |
| |
| /* enable DINO */ |
| ipw_write_reg8(priv, IPW_BASEBAND_CONTROL_STATUS, 0); |
| ipw_write_reg8(priv, IPW_BASEBAND_CONTROL_STATUS, DINO_ENABLE_SYSTEM); |
| |
| /* this is where the igx / win driver deveates from the VAP driver. */ |
| |
| /* wait for alive response */ |
| for (i = 0; i < 100; i++) { |
| /* poll for incoming data */ |
| cr = ipw_read_reg8(priv, IPW_BASEBAND_CONTROL_STATUS); |
| if (cr & DINO_RXFIFO_DATA) |
| break; |
| mdelay(1); |
| } |
| |
| if (cr & DINO_RXFIFO_DATA) { |
| /* alive_command_responce size is NOT multiple of 4 */ |
| __le32 response_buffer[(sizeof(priv->dino_alive) + 3) / 4]; |
| |
| for (i = 0; i < ARRAY_SIZE(response_buffer); i++) |
| response_buffer[i] = |
| cpu_to_le32(ipw_read_reg32(priv, |
| IPW_BASEBAND_RX_FIFO_READ)); |
| memcpy(&priv->dino_alive, response_buffer, |
| sizeof(priv->dino_alive)); |
| if (priv->dino_alive.alive_command == 1 |
| && priv->dino_alive.ucode_valid == 1) { |
| rc = 0; |
| IPW_DEBUG_INFO |
| ("Microcode OK, rev. %d (0x%x) dev. %d (0x%x) " |
| "of %02d/%02d/%02d %02d:%02d\n", |
| priv->dino_alive.software_revision, |
| priv->dino_alive.software_revision, |
| priv->dino_alive.device_identifier, |
| priv->dino_alive.device_identifier, |
| priv->dino_alive.time_stamp[0], |
| priv->dino_alive.time_stamp[1], |
| priv->dino_alive.time_stamp[2], |
| priv->dino_alive.time_stamp[3], |
| priv->dino_alive.time_stamp[4]); |
| } else { |
| IPW_DEBUG_INFO("Microcode is not alive\n"); |
| rc = -EINVAL; |
| } |
| } else { |
| IPW_DEBUG_INFO("No alive response from DINO\n"); |
| rc = -ETIME; |
| } |
| |
| /* disable DINO, otherwise for some reason |
| firmware have problem getting alive resp. */ |
| ipw_write_reg8(priv, IPW_BASEBAND_CONTROL_STATUS, 0); |
| |
| return rc; |
| } |
| |
| static int ipw_load_firmware(struct ipw_priv *priv, u8 * data, size_t len) |
| { |
| int ret = -1; |
| int offset = 0; |
| struct fw_chunk *chunk; |
| int total_nr = 0; |
| int i; |
| struct dma_pool *pool; |
| void **virts; |
| dma_addr_t *phys; |
| |
| IPW_DEBUG_TRACE("<< :\n"); |
| |
| virts = kmalloc_array(CB_NUMBER_OF_ELEMENTS_SMALL, sizeof(void *), |
| GFP_KERNEL); |
| if (!virts) |
| return -ENOMEM; |
| |
| phys = kmalloc_array(CB_NUMBER_OF_ELEMENTS_SMALL, sizeof(dma_addr_t), |
| GFP_KERNEL); |
| if (!phys) { |
| kfree(virts); |
| return -ENOMEM; |
| } |
| pool = dma_pool_create("ipw2200", &priv->pci_dev->dev, CB_MAX_LENGTH, 0, |
| 0); |
| if (!pool) { |
| IPW_ERROR("dma_pool_create failed\n"); |
| kfree(phys); |
| kfree(virts); |
| return -ENOMEM; |
| } |
| |
| /* Start the Dma */ |
| ret = ipw_fw_dma_enable(priv); |
| |
| /* the DMA is already ready this would be a bug. */ |
| BUG_ON(priv->sram_desc.last_cb_index > 0); |
| |
| do { |
| u32 chunk_len; |
| u8 *start; |
| int size; |
| int nr = 0; |
| |
| chunk = (struct fw_chunk *)(data + offset); |
| offset += sizeof(struct fw_chunk); |
| chunk_len = le32_to_cpu(chunk->length); |
| start = data + offset; |
| |
| nr = (chunk_len + CB_MAX_LENGTH - 1) / CB_MAX_LENGTH; |
| for (i = 0; i < nr; i++) { |
| virts[total_nr] = dma_pool_alloc(pool, GFP_KERNEL, |
| &phys[total_nr]); |
| if (!virts[total_nr]) { |
| ret = -ENOMEM; |
| goto out; |
| } |
| size = min_t(u32, chunk_len - i * CB_MAX_LENGTH, |
| CB_MAX_LENGTH); |
| memcpy(virts[total_nr], start, size); |
| start += size; |
| total_nr++; |
| /* We don't support fw chunk larger than 64*8K */ |
| BUG_ON(total_nr > CB_NUMBER_OF_ELEMENTS_SMALL); |
| } |
| |
| /* build DMA packet and queue up for sending */ |
| /* dma to chunk->address, the chunk->length bytes from data + |
| * offeset*/ |
| /* Dma loading */ |
| ret = ipw_fw_dma_add_buffer(priv, &phys[total_nr - nr], |
| nr, le32_to_cpu(chunk->address), |
| chunk_len); |
| if (ret) { |
| IPW_DEBUG_INFO("dmaAddBuffer Failed\n"); |
| goto out; |
| } |
| |
| offset += chunk_len; |
| } while (offset < len); |
| |
| /* Run the DMA and wait for the answer */ |
| ret = ipw_fw_dma_kick(priv); |
| if (ret) { |
| IPW_ERROR("dmaKick Failed\n"); |
| goto out; |
| } |
| |
| ret = ipw_fw_dma_wait(priv); |
| if (ret) { |
| IPW_ERROR("dmaWaitSync Failed\n"); |
| goto out; |
| } |
| out: |
| for (i = 0; i < total_nr; i++) |
| dma_pool_free(pool, virts[i], phys[i]); |
| |
| dma_pool_destroy(pool); |
| kfree(phys); |
| kfree(virts); |
| |
| return ret; |
| } |
| |
| /* stop nic */ |
| static int ipw_stop_nic(struct ipw_priv *priv) |
| { |
| int rc = 0; |
| |
| /* stop */ |
| ipw_write32(priv, IPW_RESET_REG, IPW_RESET_REG_STOP_MASTER); |
| |
| rc = ipw_poll_bit(priv, IPW_RESET_REG, |
| IPW_RESET_REG_MASTER_DISABLED, 500); |
| if (rc < 0) { |
| IPW_ERROR("wait for reg master disabled failed after 500ms\n"); |
| return rc; |
| } |
| |
| ipw_set_bit(priv, IPW_RESET_REG, CBD_RESET_REG_PRINCETON_RESET); |
| |
| return rc; |
| } |
| |
| static void ipw_start_nic(struct ipw_priv *priv) |
| { |
| IPW_DEBUG_TRACE(">>\n"); |
| |
| /* prvHwStartNic release ARC */ |
| ipw_clear_bit(priv, IPW_RESET_REG, |
| IPW_RESET_REG_MASTER_DISABLED | |
| IPW_RESET_REG_STOP_MASTER | |
| CBD_RESET_REG_PRINCETON_RESET); |
| |
| /* enable power management */ |
| ipw_set_bit(priv, IPW_GP_CNTRL_RW, |
| IPW_GP_CNTRL_BIT_HOST_ALLOWS_STANDBY); |
| |
| IPW_DEBUG_TRACE("<<\n"); |
| } |
| |
| static int ipw_init_nic(struct ipw_priv *priv) |
| { |
| int rc; |
| |
| IPW_DEBUG_TRACE(">>\n"); |
| /* reset */ |
| /*prvHwInitNic */ |
| /* set "initialization complete" bit to move adapter to D0 state */ |
| ipw_set_bit(priv, IPW_GP_CNTRL_RW, IPW_GP_CNTRL_BIT_INIT_DONE); |
| |
| /* low-level PLL activation */ |
| ipw_write32(priv, IPW_READ_INT_REGISTER, |
| IPW_BIT_INT_HOST_SRAM_READ_INT_REGISTER); |
| |
| /* wait for clock stabilization */ |
| rc = ipw_poll_bit(priv, IPW_GP_CNTRL_RW, |
| IPW_GP_CNTRL_BIT_CLOCK_READY, 250); |
| if (rc < 0) |
| IPW_DEBUG_INFO("FAILED wait for clock stablization\n"); |
| |
| /* assert SW reset */ |
| ipw_set_bit(priv, IPW_RESET_REG, IPW_RESET_REG_SW_RESET); |
| |
| udelay(10); |
| |
| /* set "initialization complete" bit to move adapter to D0 state */ |
| ipw_set_bit(priv, IPW_GP_CNTRL_RW, IPW_GP_CNTRL_BIT_INIT_DONE); |
| |
| IPW_DEBUG_TRACE(">>\n"); |
| return 0; |
| } |
| |
| /* Call this function from process context, it will sleep in request_firmware. |
| * Probe is an ok place to call this from. |
| */ |
| static int ipw_reset_nic(struct ipw_priv *priv) |
| { |
| int rc = 0; |
| unsigned long flags; |
| |
| IPW_DEBUG_TRACE(">>\n"); |
| |
| rc = ipw_init_nic(priv); |
| |
| spin_lock_irqsave(&priv->lock, flags); |
| /* Clear the 'host command active' bit... */ |
| priv->status &= ~STATUS_HCMD_ACTIVE; |
| wake_up_interruptible(&priv->wait_command_queue); |
| priv->status &= ~(STATUS_SCANNING | STATUS_SCAN_ABORTING); |
| wake_up_interruptible(&priv->wait_state); |
| spin_unlock_irqrestore(&priv->lock, flags); |
| |
| IPW_DEBUG_TRACE("<<\n"); |
| return rc; |
| } |
| |
| |
| struct ipw_fw { |
| __le32 ver; |
| __le32 boot_size; |
| __le32 ucode_size; |
| __le32 fw_size; |
| u8 data[0]; |
| }; |
| |
| static int ipw_get_fw(struct ipw_priv *priv, |
| const struct firmware **raw, const char *name) |
| { |
| struct ipw_fw *fw; |
| int rc; |
| |
| /* ask firmware_class module to get the boot firmware off disk */ |
| rc = request_firmware(raw, name, &priv->pci_dev->dev); |
| if (rc < 0) { |
| IPW_ERROR("%s request_firmware failed: Reason %d\n", name, rc); |
| return rc; |
| } |
| |
| if ((*raw)->size < sizeof(*fw)) { |
| IPW_ERROR("%s is too small (%zd)\n", name, (*raw)->size); |
| return -EINVAL; |
| } |
| |
| fw = (void *)(*raw)->data; |
| |
| if ((*raw)->size < sizeof(*fw) + le32_to_cpu(fw->boot_size) + |
| le32_to_cpu(fw->ucode_size) + le32_to_cpu(fw->fw_size)) { |
| IPW_ERROR("%s is too small or corrupt (%zd)\n", |
| name, (*raw)->size); |
| return -EINVAL; |
| } |
| |
| IPW_DEBUG_INFO("Read firmware '%s' image v%d.%d (%zd bytes)\n", |
| name, |
| le32_to_cpu(fw->ver) >> 16, |
| le32_to_cpu(fw->ver) & 0xff, |
| (*raw)->size - sizeof(*fw)); |
| return 0; |
| } |
| |
| #define IPW_RX_BUF_SIZE (3000) |
| |
| static void ipw_rx_queue_reset(struct ipw_priv *priv, |
| struct ipw_rx_queue *rxq) |
| { |
| unsigned long flags; |
| int i; |
| |
| spin_lock_irqsave(&rxq->lock, flags); |
| |
| INIT_LIST_HEAD(&rxq->rx_free); |
| INIT_LIST_HEAD(&rxq->rx_used); |
| |
| /* Fill the rx_used queue with _all_ of the Rx buffers */ |
| for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) { |
| /* In the reset function, these buffers may have been allocated |
| * to an SKB, so we need to unmap and free potential storage */ |
| if (rxq->pool[i].skb != NULL) { |
| dma_unmap_single(&priv->pci_dev->dev, |
| rxq->pool[i].dma_addr, |
| IPW_RX_BUF_SIZE, DMA_FROM_DEVICE); |
| dev_kfree_skb_irq(rxq->pool[i].skb); |
| rxq->pool[i].skb = NULL; |
| } |
| list_add_tail(&rxq->pool[i].list, &rxq->rx_used); |
| } |
| |
| /* Set us so that we have processed and used all buffers, but have |
| * not restocked the Rx queue with fresh buffers */ |
| rxq->read = rxq->write = 0; |
| rxq->free_count = 0; |
| spin_unlock_irqrestore(&rxq->lock, flags); |
| } |
| |
| #ifdef CONFIG_PM |
| static int fw_loaded = 0; |
| static const struct firmware *raw = NULL; |
| |
| static void free_firmware(void) |
| { |
| if (fw_loaded) { |
| release_firmware(raw); |
| raw = NULL; |
| fw_loaded = 0; |
| } |
| } |
| #else |
| #define free_firmware() do {} while (0) |
| #endif |
| |
| static int ipw_load(struct ipw_priv *priv) |
| { |
| #ifndef CONFIG_PM |
| const struct firmware *raw = NULL; |
| #endif |
| struct ipw_fw *fw; |
| u8 *boot_img, *ucode_img, *fw_img; |
| u8 *name = NULL; |
| int rc = 0, retries = 3; |
| |
| switch (priv->ieee->iw_mode) { |
| case IW_MODE_ADHOC: |
| name = "ipw2200-ibss.fw"; |
| break; |
| #ifdef CONFIG_IPW2200_MONITOR |
| case IW_MODE_MONITOR: |
| name = "ipw2200-sniffer.fw"; |
| break; |
| #endif |
| case IW_MODE_INFRA: |
| name = "ipw2200-bss.fw"; |
| break; |
| } |
| |
| if (!name) { |
| rc = -EINVAL; |
| goto error; |
| } |
| |
| #ifdef CONFIG_PM |
| if (!fw_loaded) { |
| #endif |
| rc = ipw_get_fw(priv, &raw, name); |
| if (rc < 0) |
| goto error; |
| #ifdef CONFIG_PM |
| } |
| #endif |
| |
| fw = (void *)raw->data; |
| boot_img = &fw->data[0]; |
| ucode_img = &fw->data[le32_to_cpu(fw->boot_size)]; |
| fw_img = &fw->data[le32_to_cpu(fw->boot_size) + |
| le32_to_cpu(fw->ucode_size)]; |
| |
| if (!priv->rxq) |
| priv->rxq = ipw_rx_queue_alloc(priv); |
| else |
| ipw_rx_queue_reset(priv, priv->rxq); |
| if (!priv->rxq) { |
| IPW_ERROR("Unable to initialize Rx queue\n"); |
| rc = -ENOMEM; |
| goto error; |
| } |
| |
| retry: |
| /* Ensure interrupts are disabled */ |
| ipw_write32(priv, IPW_INTA_MASK_R, ~IPW_INTA_MASK_ALL); |
| priv->status &= ~STATUS_INT_ENABLED; |
| |
| /* ack pending interrupts */ |
| ipw_write32(priv, IPW_INTA_RW, IPW_INTA_MASK_ALL); |
| |
| ipw_stop_nic(priv); |
| |
| rc = ipw_reset_nic(priv); |
| if (rc < 0) { |
| IPW_ERROR("Unable to reset NIC\n"); |
| goto error; |
| } |
| |
| ipw_zero_memory(priv, IPW_NIC_SRAM_LOWER_BOUND, |
| IPW_NIC_SRAM_UPPER_BOUND - IPW_NIC_SRAM_LOWER_BOUND); |
| |
| /* DMA the initial boot firmware into the device */ |
| rc = ipw_load_firmware(priv, boot_img, le32_to_cpu(fw->boot_size)); |
| if (rc < 0) { |
| IPW_ERROR("Unable to load boot firmware: %d\n", rc); |
| goto error; |
| } |
| |
| /* kick start the device */ |
| ipw_start_nic(priv); |
| |
| /* wait for the device to finish its initial startup sequence */ |
| rc = ipw_poll_bit(priv, IPW_INTA_RW, |
| IPW_INTA_BIT_FW_INITIALIZATION_DONE, 500); |
| if (rc < 0) { |
| IPW_ERROR("device failed to boot initial fw image\n"); |
| goto error; |
| } |
| IPW_DEBUG_INFO("initial device response after %dms\n", rc); |
| |
| /* ack fw init done interrupt */ |
| ipw_write32(priv, IPW_INTA_RW, IPW_INTA_BIT_FW_INITIALIZATION_DONE); |
| |
| /* DMA the ucode into the device */ |
| rc = ipw_load_ucode(priv, ucode_img, le32_to_cpu(fw->ucode_size)); |
| if (rc < 0) { |
| IPW_ERROR("Unable to load ucode: %d\n", rc); |
| goto error; |
| } |
| |
| /* stop nic */ |
| ipw_stop_nic(priv); |
| |
| /* DMA bss firmware into the device */ |
| rc = ipw_load_firmware(priv, fw_img, le32_to_cpu(fw->fw_size)); |
| if (rc < 0) { |
| IPW_ERROR("Unable to load firmware: %d\n", rc); |
| goto error; |
| } |
| #ifdef CONFIG_PM |
| fw_loaded = 1; |
| #endif |
| |
| ipw_write32(priv, IPW_EEPROM_LOAD_DISABLE, 0); |
| |
| rc = ipw_queue_reset(priv); |
| if (rc < 0) { |
| IPW_ERROR("Unable to initialize queues\n"); |
| goto error; |
| } |
| |
| /* Ensure interrupts are disabled */ |
| ipw_write32(priv, IPW_INTA_MASK_R, ~IPW_INTA_MASK_ALL); |
| /* ack pending interrupts */ |
| ipw_write32(priv, IPW_INTA_RW, IPW_INTA_MASK_ALL); |
| |
| /* kick start the device */ |
| ipw_start_nic(priv); |
| |
| if (ipw_read32(priv, IPW_INTA_RW) & IPW_INTA_BIT_PARITY_ERROR) { |
| if (retries > 0) { |
| IPW_WARNING("Parity error. Retrying init.\n"); |
| retries--; |
| goto retry; |
| } |
| |
| IPW_ERROR("TODO: Handle parity error -- schedule restart?\n"); |
| rc = -EIO; |
| goto error; |
| } |
| |
| /* wait for the device */ |
| rc = ipw_poll_bit(priv, IPW_INTA_RW, |
| IPW_INTA_BIT_FW_INITIALIZATION_DONE, 500); |
| if (rc < 0) { |
| IPW_ERROR("device failed to start within 500ms\n"); |
| goto error; |
| } |
| IPW_DEBUG_INFO("device response after %dms\n", rc); |
| |
| /* ack fw init done interrupt */ |
| ipw_write32(priv, IPW_INTA_RW, IPW_INTA_BIT_FW_INITIALIZATION_DONE); |
| |
| /* read eeprom data */ |
| priv->eeprom_delay = 1; |
| ipw_read_eeprom(priv); |
| /* initialize the eeprom region of sram */ |
| ipw_eeprom_init_sram(priv); |
| |
| /* enable interrupts */ |
| ipw_enable_interrupts(priv); |
| |
| /* Ensure our queue has valid packets */ |
| ipw_rx_queue_replenish(priv); |
| |
| ipw_write32(priv, IPW_RX_READ_INDEX, priv->rxq->read); |
| |
| /* ack pending interrupts */ |
| ipw_write32(priv, IPW_INTA_RW, IPW_INTA_MASK_ALL); |
| |
| #ifndef CONFIG_PM |
| release_firmware(raw); |
| #endif |
| return 0; |
| |
| error: |
| if (priv->rxq) { |
| ipw_rx_queue_free(priv, priv->rxq); |
| priv->rxq = NULL; |
| } |
| ipw_tx_queue_free(priv); |
| release_firmware(raw); |
| #ifdef CONFIG_PM |
| fw_loaded = 0; |
| raw = NULL; |
| #endif |
| |
| return rc; |
| } |
| |
| /** |
| * DMA services |
| * |
| * Theory of operation |
| * |
| * A queue is a circular buffers with 'Read' and 'Write' pointers. |
| * 2 empty entries always kept in the buffer to protect from overflow. |
| * |
| * For Tx queue, there are low mark and high mark limits. If, after queuing |
| * the packet for Tx, free space become < low mark, Tx queue stopped. When |
| * reclaiming packets (on 'tx done IRQ), if free space become > high mark, |
| * Tx queue resumed. |
| * |
| * The IPW operates with six queues, one receive queue in the device's |
| * sram, one transmit queue for sending commands to the device firmware, |
| * and four transmit queues for data. |
| * |
| * The four transmit queues allow for performing quality of service (qos) |
| * transmissions as per the 802.11 protocol. Currently Linux does not |
| * provide a mechanism to the user for utilizing prioritized queues, so |
| * we only utilize the first data transmit queue (queue1). |
| */ |
| |
| /** |
| * Driver allocates buffers of this size for Rx |
| */ |
| |
| /** |
| * ipw_rx_queue_space - Return number of free slots available in queue. |
| */ |
| static int ipw_rx_queue_space(const struct ipw_rx_queue *q) |
| { |
| int s = q->read - q->write; |
| if (s <= 0) |
| s += RX_QUEUE_SIZE; |
| /* keep some buffer to not confuse full and empty queue */ |
| s -= 2; |
| if (s < 0) |
| s = 0; |
| return s; |
| } |
| |
| static inline int ipw_tx_queue_space(const struct clx2_queue *q) |
| { |
| int s = q->last_used - q->first_empty; |
| if (s <= 0) |
| s += q->n_bd; |
| s -= 2; /* keep some reserve to not confuse empty and full situations */ |
| if (s < 0) |
| s = 0; |
| return s; |
| } |
| |
| static inline int ipw_queue_inc_wrap(int index, int n_bd) |
| { |
| return (++index == n_bd) ? 0 : index; |
| } |
| |
| /** |
| * Initialize common DMA queue structure |
| * |
| * @param q queue to init |
| * @param count Number of BD's to allocate. Should be power of 2 |
| * @param read_register Address for 'read' register |
| * (not offset within BAR, full address) |
| * @param write_register Address for 'write' register |
| * (not offset within BAR, full address) |
| * @param base_register Address for 'base' register |
| * (not offset within BAR, full address) |
| * @param size Address for 'size' register |
| * (not offset within BAR, full address) |
| */ |
| static void ipw_queue_init(struct ipw_priv *priv, struct clx2_queue *q, |
| int count, u32 read, u32 write, u32 base, u32 size) |
| { |
| q->n_bd = count; |
| |
| q->low_mark = q->n_bd / 4; |
| if (q->low_mark < 4) |
| q->low_mark = 4; |
| |
| q->high_mark = q->n_bd / 8; |
| if (q->high_mark < 2) |
| q->high_mark = 2; |
| |
| q->first_empty = q->last_used = 0; |
| q->reg_r = read; |
| q->reg_w = write; |
| |
| ipw_write32(priv, base, q->dma_addr); |
| ipw_write32(priv, size, count); |
| ipw_write32(priv, read, 0); |
| ipw_write32(priv, write, 0); |
| |
| _ipw_read32(priv, 0x90); |
| } |
| |
| static int ipw_queue_tx_init(struct ipw_priv *priv, |
| struct clx2_tx_queue *q, |
| int count, u32 read, u32 write, u32 base, u32 size) |
| { |
| struct pci_dev *dev = priv->pci_dev; |
| |
| q->txb = kmalloc_array(count, sizeof(q->txb[0]), GFP_KERNEL); |
| if (!q->txb) { |
| IPW_ERROR("vmalloc for auxiliary BD structures failed\n"); |
| return -ENOMEM; |
| } |
| |
| q->bd = |
| dma_alloc_coherent(&dev->dev, sizeof(q->bd[0]) * count, |
| &q->q.dma_addr, GFP_KERNEL); |
| if (!q->bd) { |
| IPW_ERROR("pci_alloc_consistent(%zd) failed\n", |
| sizeof(q->bd[0]) * count); |
| kfree(q->txb); |
| q->txb = NULL; |
| return -ENOMEM; |
| } |
| |
| ipw_queue_init(priv, &q->q, count, read, write, base, size); |
| return 0; |
| } |
| |
| /** |
| * Free one TFD, those at index [txq->q.last_used]. |
| * Do NOT advance any indexes |
| * |
| * @param dev |
| * @param txq |
| */ |
| static void ipw_queue_tx_free_tfd(struct ipw_priv *priv, |
| struct clx2_tx_queue *txq) |
| { |
| struct tfd_frame *bd = &txq->bd[txq->q.last_used]; |
| struct pci_dev *dev = priv->pci_dev; |
| int i; |
| |
| /* classify bd */ |
| if (bd->control_flags.message_type == TX_HOST_COMMAND_TYPE) |
| /* nothing to cleanup after for host commands */ |
| return; |
| |
| /* sanity check */ |
| if (le32_to_cpu(bd->u.data.num_chunks) > NUM_TFD_CHUNKS) { |
| IPW_ERROR("Too many chunks: %i\n", |
| le32_to_cpu(bd->u.data.num_chunks)); |
| /** @todo issue fatal error, it is quite serious situation */ |
| return; |
| } |
| |
| /* unmap chunks if any */ |
| for (i = 0; i < le32_to_cpu(bd->u.data.num_chunks); i++) { |
| dma_unmap_single(&dev->dev, |
| le32_to_cpu(bd->u.data.chunk_ptr[i]), |
| le16_to_cpu(bd->u.data.chunk_len[i]), |
| DMA_TO_DEVICE); |
| if (txq->txb[txq->q.last_used]) { |
| libipw_txb_free(txq->txb[txq->q.last_used]); |
| txq->txb[txq->q.last_used] = NULL; |
| } |
| } |
| } |
| |
| /** |
| * Deallocate DMA queue. |
| * |
| * Empty queue by removing and destroying all BD's. |
| * Free all buffers. |
| * |
| * @param dev |
| * @param q |
| */ |
| static void ipw_queue_tx_free(struct ipw_priv *priv, struct clx2_tx_queue *txq) |
| { |
| struct clx2_queue *q = &txq->q; |
| struct pci_dev *dev = priv->pci_dev; |
| |
| if (q->n_bd == 0) |
| return; |
| |
| /* first, empty all BD's */ |
| for (; q->first_empty != q->last_used; |
| q->last_used = ipw_queue_inc_wrap(q->last_used, q->n_bd)) { |
| ipw_queue_tx_free_tfd(priv, txq); |
| } |
| |
| /* free buffers belonging to queue itself */ |
| dma_free_coherent(&dev->dev, sizeof(txq->bd[0]) * q->n_bd, txq->bd, |
| q->dma_addr); |
| kfree(txq->txb); |
| |
| /* 0 fill whole structure */ |
| memset(txq, 0, sizeof(*txq)); |
| } |
| |
| /** |
| * Destroy all DMA queues and structures |
| * |
| * @param priv |
| */ |
| static void ipw_tx_queue_free(struct ipw_priv *priv) |
| { |
| /* Tx CMD queue */ |
| ipw_queue_tx_free(priv, &priv->txq_cmd); |
| |
| /* Tx queues */ |
| ipw_queue_tx_free(priv, &priv->txq[0]); |
| ipw_queue_tx_free(priv, &priv->txq[1]); |
| ipw_queue_tx_free(priv, &priv->txq[2]); |
| ipw_queue_tx_free(priv, &priv->txq[3]); |
| } |
| |
| static void ipw_create_bssid(struct ipw_priv *priv, u8 * bssid) |
| { |
| /* First 3 bytes are manufacturer */ |
| bssid[0] = priv->mac_addr[0]; |
| bssid[1] = priv->mac_addr[1]; |
| bssid[2] = priv->mac_addr[2]; |
| |
| /* Last bytes are random */ |
| get_random_bytes(&bssid[3], ETH_ALEN - 3); |
| |
| bssid[0] &= 0xfe; /* clear multicast bit */ |
| bssid[0] |= 0x02; /* set local assignment bit (IEEE802) */ |
| } |
| |
| static u8 ipw_add_station(struct ipw_priv *priv, u8 * bssid) |
| { |
| struct ipw_station_entry entry; |
| int i; |
| |
| for (i = 0; i < priv->num_stations; i++) { |
| if (ether_addr_equal(priv->stations[i], bssid)) { |
| /* Another node is active in network */ |
| priv->missed_adhoc_beacons = 0; |
| if (!(priv->config & CFG_STATIC_CHANNEL)) |
| /* when other nodes drop out, we drop out */ |
| priv->config &= ~CFG_ADHOC_PERSIST; |
| |
| return i; |
| } |
| } |
| |
| if (i == MAX_STATIONS) |
| return IPW_INVALID_STATION; |
| |
| IPW_DEBUG_SCAN("Adding AdHoc station: %pM\n", bssid); |
| |
| entry.reserved = 0; |
| entry.support_mode = 0; |
| memcpy(entry.mac_addr, bssid, ETH_ALEN); |
| memcpy(priv->stations[i], bssid, ETH_ALEN); |
| ipw_write_direct(priv, IPW_STATION_TABLE_LOWER + i * sizeof(entry), |
| &entry, sizeof(entry)); |
| priv->num_stations++; |
| |
| return i; |
| } |
| |
| static u8 ipw_find_station(struct ipw_priv *priv, u8 * bssid) |
| { |
| int i; |
| |
| for (i = 0; i < priv->num_stations; i++) |
| if (ether_addr_equal(priv->stations[i], bssid)) |
| return i; |
| |
| return IPW_INVALID_STATION; |
| } |
| |
| static void ipw_send_disassociate(struct ipw_priv *priv, int quiet) |
| { |
| int err; |
| |
| if (priv->status & STATUS_ASSOCIATING) { |
| IPW_DEBUG_ASSOC("Disassociating while associating.\n"); |
| schedule_work(&priv->disassociate); |
| return; |
| } |
| |
| if (!(priv->status & STATUS_ASSOCIATED)) { |
| IPW_DEBUG_ASSOC("Disassociating while not associated.\n"); |
| return; |
| } |
| |
| IPW_DEBUG_ASSOC("Disassociation attempt from %pM " |
| "on channel %d.\n", |
| priv->assoc_request.bssid, |
| priv->assoc_request.channel); |
| |
| priv->status &= ~(STATUS_ASSOCIATING | STATUS_ASSOCIATED); |
| priv->status |= STATUS_DISASSOCIATING; |
| |
| if (quiet) |
| priv->assoc_request.assoc_type = HC_DISASSOC_QUIET; |
| else |
| priv->assoc_request.assoc_type = HC_DISASSOCIATE; |
| |
| err = ipw_send_associate(priv, &priv->assoc_request); |
| if (err) { |
| IPW_DEBUG_HC("Attempt to send [dis]associate command " |
| "failed.\n"); |
| return; |
| } |
| |
| } |
| |
| static int ipw_disassociate(void *data) |
| { |
| struct ipw_priv *priv = data; |
| if (!(priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING))) |
| return 0; |
| ipw_send_disassociate(data, 0); |
| netif_carrier_off(priv->net_dev); |
| return 1; |
| } |
| |
| static void ipw_bg_disassociate(struct work_struct *work) |
| { |
| struct ipw_priv *priv = |
| container_of(work, struct ipw_priv, disassociate); |
| mutex_lock(&priv->mutex); |
| ipw_disassociate(priv); |
| mutex_unlock(&priv->mutex); |
| } |
| |
| static void ipw_system_config(struct work_struct *work) |
| { |
| struct ipw_priv *priv = |
| container_of(work, struct ipw_priv, system_config); |
| |
| #ifdef CONFIG_IPW2200_PROMISCUOUS |
| if (priv->prom_net_dev && netif_running(priv->prom_net_dev)) { |
| priv->sys_config.accept_all_data_frames = 1; |
| priv->sys_config.accept_non_directed_frames = 1; |
| priv->sys_config.accept_all_mgmt_bcpr = 1; |
| priv->sys_config.accept_all_mgmt_frames = 1; |
| } |
| #endif |
| |
| ipw_send_system_config(priv); |
| } |
| |
| struct ipw_status_code { |
| u16 status; |
| const char *reason; |
| }; |
| |
| static const struct ipw_status_code ipw_status_codes[] = { |
| {0x00, "Successful"}, |
| {0x01, "Unspecified failure"}, |
| {0x0A, "Cannot support all requested capabilities in the " |
| "Capability information field"}, |
| {0x0B, "Reassociation denied due to inability to confirm that " |
| "association exists"}, |
| {0x0C, "Association denied due to reason outside the scope of this " |
| "standard"}, |
| {0x0D, |
| "Responding station does not support the specified authentication " |
| "algorithm"}, |
| {0x0E, |
| "Received an Authentication frame with authentication sequence " |
| "transaction sequence number out of expected sequence"}, |
| {0x0F, "Authentication rejected because of challenge failure"}, |
| {0x10, "Authentication rejected due to timeout waiting for next " |
| "frame in sequence"}, |
| {0x11, "Association denied because AP is unable to handle additional " |
| "associated stations"}, |
| {0x12, |
| "Association denied due to requesting station not supporting all " |
| "of the datarates in the BSSBasicServiceSet Parameter"}, |
| {0x13, |
| "Association denied due to requesting station not supporting " |
| "short preamble operation"}, |
| {0x14, |
| "Association denied due to requesting station not supporting " |
| "PBCC encoding"}, |
| {0x15, |
| "Association denied due to requesting station not supporting " |
| "channel agility"}, |
| {0x19, |
| "Association denied due to requesting station not supporting " |
| "short slot operation"}, |
| {0x1A, |
| "Association denied due to requesting station not supporting " |
| "DSSS-OFDM operation"}, |
| {0x28, "Invalid Information Element"}, |
| {0x29, "Group Cipher is not valid"}, |
| {0x2A, "Pairwise Cipher is not valid"}, |
| {0x2B, "AKMP is not valid"}, |
| {0x2C, "Unsupported RSN IE version"}, |
| {0x2D, "Invalid RSN IE Capabilities"}, |
| {0x2E, "Cipher suite is rejected per security policy"}, |
| }; |
| |
| static const char *ipw_get_status_code(u16 status) |
| { |
| int i; |
| for (i = 0; i < ARRAY_SIZE(ipw_status_codes); i++) |
| if (ipw_status_codes[i].status == (status & 0xff)) |
| return ipw_status_codes[i].reason; |
| return "Unknown status value."; |
| } |
| |
| static inline void average_init(struct average *avg) |
| { |
| memset(avg, 0, sizeof(*avg)); |
| } |
| |
| #define DEPTH_RSSI 8 |
| #define DEPTH_NOISE 16 |
| static s16 exponential_average(s16 prev_avg, s16 val, u8 depth) |
| { |
| return ((depth-1)*prev_avg + val)/depth; |
| } |
| |
| static void average_add(struct average *avg, s16 val) |
| { |
| avg->sum -= avg->entries[avg->pos]; |
| avg->sum += val; |
| avg->entries[avg->pos++] = val; |
| if (unlikely(avg->pos == AVG_ENTRIES)) { |
| avg->init = 1; |
| avg->pos = 0; |
| } |
| } |
| |
| static s16 average_value(struct average *avg) |
| { |
| if (!unlikely(avg->init)) { |
| if (avg->pos) |
| return avg->sum / avg->pos; |
| return 0; |
| } |
| |
| return avg->sum / AVG_ENTRIES; |
| } |
| |
| static void ipw_reset_stats(struct ipw_priv *priv) |
| { |
| u32 len = sizeof(u32); |
| |
| priv->quality = 0; |
| |
| average_init(&priv->average_missed_beacons); |
| priv->exp_avg_rssi = -60; |
| priv->exp_avg_noise = -85 + 0x100; |
| |
| priv->last_rate = 0; |
| priv->last_missed_beacons = 0; |
| priv->last_rx_packets = 0; |
| priv->last_tx_packets = 0; |
| priv->last_tx_failures = 0; |
| |
| /* Firmware managed, reset only when NIC is restarted, so we have to |
| * normalize on the current value */ |
| ipw_get_ordinal(priv, IPW_ORD_STAT_RX_ERR_CRC, |
| &priv->last_rx_err, &len); |
| ipw_get_ordinal(priv, IPW_ORD_STAT_TX_FAILURE, |
| &priv->last_tx_failures, &len); |
| |
| /* Driver managed, reset with each association */ |
| priv->missed_adhoc_beacons = 0; |
| priv->missed_beacons = 0; |
| priv->tx_packets = 0; |
| priv->rx_packets = 0; |
| |
| } |
| |
| static u32 ipw_get_max_rate(struct ipw_priv *priv) |
| { |
| u32 i = 0x80000000; |
| u32 mask = priv->rates_mask; |
| /* If currently associated in B mode, restrict the maximum |
| * rate match to B rates */ |
| if (priv->assoc_request.ieee_mode == IPW_B_MODE) |
| mask &= LIBIPW_CCK_RATES_MASK; |
| |
| /* TODO: Verify that the rate is supported by the current rates |
| * list. */ |
| |
| while (i && !(mask & i)) |
| i >>= 1; |
| switch (i) { |
| case LIBIPW_CCK_RATE_1MB_MASK: |
| return 1000000; |
| case LIBIPW_CCK_RATE_2MB_MASK: |
| return 2000000; |
| case LIBIPW_CCK_RATE_5MB_MASK: |
| return 5500000; |
| case LIBIPW_OFDM_RATE_6MB_MASK: |
| return 6000000; |
| case LIBIPW_OFDM_RATE_9MB_MASK: |
| return 9000000; |
| case LIBIPW_CCK_RATE_11MB_MASK: |
| return 11000000; |
| case LIBIPW_OFDM_RATE_12MB_MASK: |
| return 12000000; |
| case LIBIPW_OFDM_RATE_18MB_MASK: |
| return 18000000; |
| case LIBIPW_OFDM_RATE_24MB_MASK: |
| return 24000000; |
| case LIBIPW_OFDM_RATE_36MB_MASK: |
| return 36000000; |
| case LIBIPW_OFDM_RATE_48MB_MASK: |
| return 48000000; |
| case LIBIPW_OFDM_RATE_54MB_MASK: |
| return 54000000; |
| } |
| |
| if (priv->ieee->mode == IEEE_B) |
| return 11000000; |
| else |
| return 54000000; |
| } |
| |
| static u32 ipw_get_current_rate(struct ipw_priv *priv) |
| { |
| u32 rate, len = sizeof(rate); |
| int err; |
| |
| if (!(priv->status & STATUS_ASSOCIATED)) |
| return 0; |
| |
| if (priv->tx_packets > IPW_REAL_RATE_RX_PACKET_THRESHOLD) { |
| err = ipw_get_ordinal(priv, IPW_ORD_STAT_TX_CURR_RATE, &rate, |
| &len); |
| if (err) { |
| IPW_DEBUG_INFO("failed querying ordinals.\n"); |
| return 0; |
| } |
| } else |
| return ipw_get_max_rate(priv); |
| |
| switch (rate) { |
| case IPW_TX_RATE_1MB: |
| return 1000000; |
| case IPW_TX_RATE_2MB: |
| return 2000000; |
| case IPW_TX_RATE_5MB: |
| return 5500000; |
| case IPW_TX_RATE_6MB: |
| return 6000000; |
| case IPW_TX_RATE_9MB: |
| return 9000000; |
| case IPW_TX_RATE_11MB: |
| return 11000000; |
| case IPW_TX_RATE_12MB: |
| return 12000000; |
| case IPW_TX_RATE_18MB: |
| return 18000000; |
| case IPW_TX_RATE_24MB: |
| return 24000000; |
| case IPW_TX_RATE_36MB: |
| return 36000000; |
| case IPW_TX_RATE_48MB: |
| return 48000000; |
| case IPW_TX_RATE_54MB: |
| return 54000000; |
| } |
| |
| return 0; |
| } |
| |
| #define IPW_STATS_INTERVAL (2 * HZ) |
| static void ipw_gather_stats(struct ipw_priv *priv) |
| { |
| u32 rx_err, rx_err_delta, rx_packets_delta; |
| u32 tx_failures, tx_failures_delta, tx_packets_delta; |
| u32 missed_beacons_percent, missed_beacons_delta; |
| u32 quality = 0; |
| u32 len = sizeof(u32); |
| s16 rssi; |
| u32 beacon_quality, signal_quality, tx_quality, rx_quality, |
| rate_quality; |
| u32 max_rate; |
| |
| if (!(priv->status & STATUS_ASSOCIATED)) { |
| priv->quality = 0; |
| return; |
| } |
| |
| /* Update the statistics */ |
| ipw_get_ordinal(priv, IPW_ORD_STAT_MISSED_BEACONS, |
| &priv->missed_beacons, &len); |
| missed_beacons_delta = priv->missed_beacons - priv->last_missed_beacons; |
| priv->last_missed_beacons = priv->missed_beacons; |
| if (priv->assoc_request.beacon_interval) { |
| missed_beacons_percent = missed_beacons_delta * |
| (HZ * le16_to_cpu(priv->assoc_request.beacon_interval)) / |
| (IPW_STATS_INTERVAL * 10); |
| } else { |
| missed_beacons_percent = 0; |
| } |
| average_add(&priv->average_missed_beacons, missed_beacons_percent); |
| |
| ipw_get_ordinal(priv, IPW_ORD_STAT_RX_ERR_CRC, &rx_err, &len); |
| rx_err_delta = rx_err - priv->last_rx_err; |
| priv->last_rx_err = rx_err; |
| |
| ipw_get_ordinal(priv, IPW_ORD_STAT_TX_FAILURE, &tx_failures, &len); |
| tx_failures_delta = tx_failures - priv->last_tx_failures; |
| priv->last_tx_failures = tx_failures; |
| |
| rx_packets_delta = priv->rx_packets - priv->last_rx_packets; |
| priv->last_rx_packets = priv->rx_packets; |
| |
| tx_packets_delta = priv->tx_packets - priv->last_tx_packets; |
| priv->last_tx_packets = priv->tx_packets; |
| |
| /* Calculate quality based on the following: |
| * |
| * Missed beacon: 100% = 0, 0% = 70% missed |
| * Rate: 60% = 1Mbs, 100% = Max |
| * Rx and Tx errors represent a straight % of total Rx/Tx |
| * RSSI: 100% = > -50, 0% = < -80 |
| * Rx errors: 100% = 0, 0% = 50% missed |
| * |
| * The lowest computed quality is used. |
| * |
| */ |
| #define BEACON_THRESHOLD 5 |
| beacon_quality = 100 - missed_beacons_percent; |
| if (beacon_quality < BEACON_THRESHOLD) |
| beacon_quality = 0; |
| else |
| beacon_quality = (beacon_quality - BEACON_THRESHOLD) * 100 / |
| (100 - BEACON_THRESHOLD); |
| IPW_DEBUG_STATS("Missed beacon: %3d%% (%d%%)\n", |
| beacon_quality, missed_beacons_percent); |
| |
| priv->last_rate = ipw_get_current_rate(priv); |
| max_rate = ipw_get_max_rate(priv); |
| rate_quality = priv->last_rate * 40 / max_rate + 60; |
| IPW_DEBUG_STATS("Rate quality : %3d%% (%dMbs)\n", |
| rate_quality, priv->last_rate / 1000000); |
| |
| if (rx_packets_delta > 100 && rx_packets_delta + rx_err_delta) |
| rx_quality = 100 - (rx_err_delta * 100) / |
| (rx_packets_delta + rx_err_delta); |
| else |
| rx_quality = 100; |
| IPW_DEBUG_STATS("Rx quality : %3d%% (%u errors, %u packets)\n", |
| rx_quality, rx_err_delta, rx_packets_delta); |
| |
| if (tx_packets_delta > 100 && tx_packets_delta + tx_failures_delta) |
| tx_quality = 100 - (tx_failures_delta * 100) / |
| (tx_packets_delta + tx_failures_delta); |
| else |
| tx_quality = 100; |
| IPW_DEBUG_STATS("Tx quality : %3d%% (%u errors, %u packets)\n", |
| tx_quality, tx_failures_delta, tx_packets_delta); |
| |
| rssi = priv->exp_avg_rssi; |
| signal_quality = |
| (100 * |
| (priv->ieee->perfect_rssi - priv->ieee->worst_rssi) * |
| (priv->ieee->perfect_rssi - priv->ieee->worst_rssi) - |
| (priv->ieee->perfect_rssi - rssi) * |
| (15 * (priv->ieee->perfect_rssi - priv->ieee->worst_rssi) + |
| 62 * (priv->ieee->perfect_rssi - rssi))) / |
| ((priv->ieee->perfect_rssi - priv->ieee->worst_rssi) * |
| (priv->ieee->perfect_rssi - priv->ieee->worst_rssi)); |
| if (signal_quality > 100) |
| signal_quality = 100; |
| else if (signal_quality < 1) |
| signal_quality = 0; |
| |
| IPW_DEBUG_STATS("Signal level : %3d%% (%d dBm)\n", |
| signal_quality, rssi); |
| |
| quality = min(rx_quality, signal_quality); |
| quality = min(tx_quality, quality); |
| quality = min(rate_quality, quality); |
| quality = min(beacon_quality, quality); |
| if (quality == beacon_quality) |
| IPW_DEBUG_STATS("Quality (%d%%): Clamped to missed beacons.\n", |
| quality); |
| if (quality == rate_quality) |
| IPW_DEBUG_STATS("Quality (%d%%): Clamped to rate quality.\n", |
| quality); |
| if (quality == tx_quality) |
| IPW_DEBUG_STATS("Quality (%d%%): Clamped to Tx quality.\n", |
| quality); |
| if (quality == rx_quality) |
| IPW_DEBUG_STATS("Quality (%d%%): Clamped to Rx quality.\n", |
| quality); |
| if (quality == signal_quality) |
| IPW_DEBUG_STATS("Quality (%d%%): Clamped to signal quality.\n", |
| quality); |
| |
| priv->quality = quality; |
| |
| schedule_delayed_work(&priv->gather_stats, IPW_STATS_INTERVAL); |
| } |
| |
| static void ipw_bg_gather_stats(struct work_struct *work) |
| { |
| struct ipw_priv *priv = |
| container_of(work, struct ipw_priv, gather_stats.work); |
| mutex_lock(&priv->mutex); |
| ipw_gather_stats(priv); |
| mutex_unlock(&priv->mutex); |
| } |
| |
| /* Missed beacon behavior: |
| * 1st missed -> roaming_threshold, just wait, don't do any scan/roam. |
| * roaming_threshold -> disassociate_threshold, scan and roam for better signal. |
| * Above disassociate threshold, give up and stop scanning. |
| * Roaming is disabled if disassociate_threshold <= roaming_threshold */ |
| static void ipw_handle_missed_beacon(struct ipw_priv *priv, |
| int missed_count) |
| { |
| priv->notif_missed_beacons = missed_count; |
| |
| if (missed_count > priv->disassociate_threshold && |
| priv->status & STATUS_ASSOCIATED) { |
| /* If associated and we've hit the missed |
| * beacon threshold, disassociate, turn |
| * off roaming, and abort any active scans */ |
| IPW_DEBUG(IPW_DL_INFO | IPW_DL_NOTIF | |
| IPW_DL_STATE | IPW_DL_ASSOC, |
| "Missed beacon: %d - disassociate\n", missed_count); |
| priv->status &= ~STATUS_ROAMING; |
| if (priv->status & STATUS_SCANNING) { |
| IPW_DEBUG(IPW_DL_INFO | IPW_DL_NOTIF | |
| IPW_DL_STATE, |
| "Aborting scan with missed beacon.\n"); |
| schedule_work(&priv->abort_scan); |
| } |
| |
| schedule_work(&priv->disassociate); |
| return; |
| } |
| |
| if (priv->status & STATUS_ROAMING) { |
| /* If we are currently roaming, then just |
| * print a debug statement... */ |
| IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE, |
| "Missed beacon: %d - roam in progress\n", |
| missed_count); |
| return; |
| } |
| |
| if (roaming && |
| (missed_count > priv->roaming_threshold && |
| missed_count <= priv->disassociate_threshold)) { |
| /* If we are not already roaming, set the ROAM |
| * bit in the status and kick off a scan. |
| * This can happen several times before we reach |
| * disassociate_threshold. */ |
| IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE, |
| "Missed beacon: %d - initiate " |
| "roaming\n", missed_count); |
| if (!(priv->status & STATUS_ROAMING)) { |
| priv->status |= STATUS_ROAMING; |
| if (!(priv->status & STATUS_SCANNING)) |
| schedule_delayed_work(&priv->request_scan, 0); |
| } |
| return; |
| } |
| |
| if (priv->status & STATUS_SCANNING && |
| missed_count > IPW_MB_SCAN_CANCEL_THRESHOLD) { |
| /* Stop scan to keep fw from getting |
| * stuck (only if we aren't roaming -- |
| * otherwise we'll never scan more than 2 or 3 |
| * channels..) */ |
| IPW_DEBUG(IPW_DL_INFO | IPW_DL_NOTIF | IPW_DL_STATE, |
| "Aborting scan with missed beacon.\n"); |
| schedule_work(&priv->abort_scan); |
| } |
| |
| IPW_DEBUG_NOTIF("Missed beacon: %d\n", missed_count); |
| } |
| |
| static void ipw_scan_event(struct work_struct *work) |
| { |
| union iwreq_data wrqu; |
| |
| struct ipw_priv *priv = |
| container_of(work, struct ipw_priv, scan_event.work); |
| |
| wrqu.data.length = 0; |
| wrqu.data.flags = 0; |
| wireless_send_event(priv->net_dev, SIOCGIWSCAN, &wrqu, NULL); |
| } |
| |
| static void handle_scan_event(struct ipw_priv *priv) |
| { |
| /* Only userspace-requested scan completion events go out immediately */ |
| if (!priv->user_requested_scan) { |
| schedule_delayed_work(&priv->scan_event, |
| round_jiffies_relative(msecs_to_jiffies(4000))); |
| } else { |
| priv->user_requested_scan = 0; |
| mod_delayed_work(system_wq, &priv->scan_event, 0); |
| } |
| } |
| |
| /** |
| * Handle host notification packet. |
| * Called from interrupt routine |
| */ |
| static void ipw_rx_notification(struct ipw_priv *priv, |
| struct ipw_rx_notification *notif) |
| { |
| u16 size = le16_to_cpu(notif->size); |
| |
| IPW_DEBUG_NOTIF("type = %i (%d bytes)\n", notif->subtype, size); |
| |
| switch (notif->subtype) { |
| case HOST_NOTIFICATION_STATUS_ASSOCIATED:{ |
| struct notif_association *assoc = ¬if->u.assoc; |
| |
| switch (assoc->state) { |
| case CMAS_ASSOCIATED:{ |
| IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | |
| IPW_DL_ASSOC, |
| "associated: '%*pE' %pM\n", |
| priv->essid_len, priv->essid, |
| priv->bssid); |
| |
| switch (priv->ieee->iw_mode) { |
| case IW_MODE_INFRA: |
| memcpy(priv->ieee->bssid, |
| priv->bssid, ETH_ALEN); |
| break; |
| |
| case IW_MODE_ADHOC: |
| memcpy(priv->ieee->bssid, |
| priv->bssid, ETH_ALEN); |
| |
| /* clear out the station table */ |
| priv->num_stations = 0; |
| |
| IPW_DEBUG_ASSOC |
| ("queueing adhoc check\n"); |
| schedule_delayed_work( |
| &priv->adhoc_check, |
| le16_to_cpu(priv-> |
| assoc_request. |
| beacon_interval)); |
| break; |
| } |
| |
| priv->status &= ~STATUS_ASSOCIATING; |
| priv->status |= STATUS_ASSOCIATED; |
| schedule_work(&priv->system_config); |
| |
| #ifdef CONFIG_IPW2200_QOS |
| #define IPW_GET_PACKET_STYPE(x) WLAN_FC_GET_STYPE( \ |
| le16_to_cpu(((struct ieee80211_hdr *)(x))->frame_control)) |
| if ((priv->status & STATUS_AUTH) && |
| (IPW_GET_PACKET_STYPE(¬if->u.raw) |
| == IEEE80211_STYPE_ASSOC_RESP)) { |
| if ((sizeof |
| (struct |
| libipw_assoc_response) |
| <= size) |
| && (size <= 2314)) { |
| struct |
| libipw_rx_stats |
| stats = { |
| .len = size - 1, |
| }; |
| |
| IPW_DEBUG_QOS |
| ("QoS Associate " |
| "size %d\n", size); |
| libipw_rx_mgt(priv-> |
| ieee, |
| (struct |
| libipw_hdr_4addr |
| *) |
| ¬if->u.raw, &stats); |
| } |
| } |
| #endif |
| |
| schedule_work(&priv->link_up); |
| |
| break; |
| } |
| |
| case CMAS_AUTHENTICATED:{ |
| if (priv-> |
| status & (STATUS_ASSOCIATED | |
| STATUS_AUTH)) { |
| struct notif_authenticate *auth |
| = ¬if->u.auth; |
| IPW_DEBUG(IPW_DL_NOTIF | |
| IPW_DL_STATE | |
| IPW_DL_ASSOC, |
| "deauthenticated: '%*pE' %pM: (0x%04X) - %s\n", |
| priv->essid_len, |
| priv->essid, |
| priv->bssid, |
| le16_to_cpu(auth->status), |
| ipw_get_status_code |
| (le16_to_cpu |
| (auth->status))); |
| |
| priv->status &= |
| ~(STATUS_ASSOCIATING | |
| STATUS_AUTH | |
| STATUS_ASSOCIATED); |
| |
| schedule_work(&priv->link_down); |
| break; |
| } |
| |
| IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | |
| IPW_DL_ASSOC, |
| "authenticated: '%*pE' %pM\n", |
| priv->essid_len, priv->essid, |
| priv->bssid); |
| break; |
| } |
| |
| case CMAS_INIT:{ |
| if (priv->status & STATUS_AUTH) { |
| struct |
| libipw_assoc_response |
| *resp; |
| resp = |
| (struct |
| libipw_assoc_response |
| *)¬if->u.raw; |
| IPW_DEBUG(IPW_DL_NOTIF | |
| IPW_DL_STATE | |
| IPW_DL_ASSOC, |
| "association failed (0x%04X): %s\n", |
| le16_to_cpu(resp->status), |
| ipw_get_status_code |
| (le16_to_cpu |
| (resp->status))); |
| } |
| |
| IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | |
| IPW_DL_ASSOC, |
| "disassociated: '%*pE' %pM\n", |
| priv->essid_len, priv->essid, |
| priv->bssid); |
| |
| priv->status &= |
| ~(STATUS_DISASSOCIATING | |
| STATUS_ASSOCIATING | |
| STATUS_ASSOCIATED | STATUS_AUTH); |
| if (priv->assoc_network |
| && (priv->assoc_network-> |
| capability & |
| WLAN_CAPABILITY_IBSS)) |
| ipw_remove_current_network |
| (priv); |
| |
| schedule_work(&priv->link_down); |
| |
| break; |
| } |
| |
| case CMAS_RX_ASSOC_RESP: |
| break; |
| |
| default: |
| IPW_ERROR("assoc: unknown (%d)\n", |
| assoc->state); |
| break; |
| } |
| |
| break; |
| } |
| |
| case HOST_NOTIFICATION_STATUS_AUTHENTICATE:{ |
| struct notif_authenticate *auth = ¬if->u.auth; |
| switch (auth->state) { |
| case CMAS_AUTHENTICATED: |
| IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE, |
| "authenticated: '%*pE' %pM\n", |
| priv->essid_len, priv->essid, |
| priv->bssid); |
| priv->status |= STATUS_AUTH; |
| break; |
| |
| case CMAS_INIT: |
| if (priv->status & STATUS_AUTH) { |
| IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | |
| IPW_DL_ASSOC, |
| "authentication failed (0x%04X): %s\n", |
| le16_to_cpu(auth->status), |
| ipw_get_status_code(le16_to_cpu |
| (auth-> |
| status))); |
| } |
| IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | |
| IPW_DL_ASSOC, |
| "deauthenticated: '%*pE' %pM\n", |
| priv->essid_len, priv->essid, |
| priv->bssid); |
| |
| priv->status &= ~(STATUS_ASSOCIATING | |
| STATUS_AUTH | |
| STATUS_ASSOCIATED); |
| |
| schedule_work(&priv->link_down); |
| break; |
| |
| case CMAS_TX_AUTH_SEQ_1: |
| IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | |
| IPW_DL_ASSOC, "AUTH_SEQ_1\n"); |
| break; |
| case CMAS_RX_AUTH_SEQ_2: |
| IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | |
| IPW_DL_ASSOC, "AUTH_SEQ_2\n"); |
| break; |
| case CMAS_AUTH_SEQ_1_PASS: |
| IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | |
| IPW_DL_ASSOC, "AUTH_SEQ_1_PASS\n"); |
| break; |
| case CMAS_AUTH_SEQ_1_FAIL: |
| IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | |
| IPW_DL_ASSOC, "AUTH_SEQ_1_FAIL\n"); |
| break; |
| case CMAS_TX_AUTH_SEQ_3: |
| IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | |
| IPW_DL_ASSOC, "AUTH_SEQ_3\n"); |
| break; |
| case CMAS_RX_AUTH_SEQ_4: |
| IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | |
| IPW_DL_ASSOC, "RX_AUTH_SEQ_4\n"); |
| break; |
| case CMAS_AUTH_SEQ_2_PASS: |
| IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | |
| IPW_DL_ASSOC, "AUTH_SEQ_2_PASS\n"); |
| break; |
| case CMAS_AUTH_SEQ_2_FAIL: |
| IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | |
| IPW_DL_ASSOC, "AUT_SEQ_2_FAIL\n"); |
| break; |
| case CMAS_TX_ASSOC: |
| IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | |
| IPW_DL_ASSOC, "TX_ASSOC\n"); |
| break; |
| case CMAS_RX_ASSOC_RESP: |
| IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | |
| IPW_DL_ASSOC, "RX_ASSOC_RESP\n"); |
| |
| break; |
| case CMAS_ASSOCIATED: |
| IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | |
| IPW_DL_ASSOC, "ASSOCIATED\n"); |
| break; |
| default: |
| IPW_DEBUG_NOTIF("auth: failure - %d\n", |
| auth->state); |
| break; |
| } |
| break; |
| } |
| |
| case HOST_NOTIFICATION_STATUS_SCAN_CHANNEL_RESULT:{ |
| struct notif_channel_result *x = |
| ¬if->u.channel_result; |
| |
| if (size == sizeof(*x)) { |
| IPW_DEBUG_SCAN("Scan result for channel %d\n", |
| x->channel_num); |
| } else { |
| IPW_DEBUG_SCAN("Scan result of wrong size %d " |
| "(should be %zd)\n", |
| size, sizeof(*x)); |
| } |
| break; |
| } |
| |
| case HOST_NOTIFICATION_STATUS_SCAN_COMPLETED:{ |
| struct notif_scan_complete *x = ¬if->u.scan_complete; |
| if (size == sizeof(*x)) { |
| IPW_DEBUG_SCAN |
| ("Scan completed: type %d, %d channels, " |
| "%d status\n", x->scan_type, |
| x->num_channels, x->status); |
| } else { |
| IPW_ERROR("Scan completed of wrong size %d " |
| "(should be %zd)\n", |
| size, sizeof(*x)); |
| } |
| |
| priv->status &= |
| ~(STATUS_SCANNING | STATUS_SCAN_ABORTING); |
| |
| wake_up_interruptible(&priv->wait_state); |
| cancel_delayed_work(&priv->scan_check); |
| |
| if (priv->status & STATUS_EXIT_PENDING) |
| break; |
| |
| priv->ieee->scans++; |
| |
| #ifdef CONFIG_IPW2200_MONITOR |
| if (priv->ieee->iw_mode == IW_MODE_MONITOR) { |
| priv->status |= STATUS_SCAN_FORCED; |
| schedule_delayed_work(&priv->request_scan, 0); |
| break; |
| } |
| priv->status &= ~STATUS_SCAN_FORCED; |
| #endif /* CONFIG_IPW2200_MONITOR */ |
| |
| /* Do queued direct scans first */ |
| if (priv->status & STATUS_DIRECT_SCAN_PENDING) |
| schedule_delayed_work(&priv->request_direct_scan, 0); |
| |
| if (!(priv->status & (STATUS_ASSOCIATED | |
| STATUS_ASSOCIATING | |
| STATUS_ROAMING | |
| STATUS_DISASSOCIATING))) |
| schedule_work(&priv->associate); |
| else if (priv->status & STATUS_ROAMING) { |
| if (x->status == SCAN_COMPLETED_STATUS_COMPLETE) |
| /* If a scan completed and we are in roam mode, then |
| * the scan that completed was the one requested as a |
| * result of entering roam... so, schedule the |
| * roam work */ |
| schedule_work(&priv->roam); |
| else |
| /* Don't schedule if we aborted the scan */ |
| priv->status &= ~STATUS_ROAMING; |
| } else if (priv->status & STATUS_SCAN_PENDING) |
| schedule_delayed_work(&priv->request_scan, 0); |
| else if (priv->config & CFG_BACKGROUND_SCAN |
| && priv->status & STATUS_ASSOCIATED) |
| schedule_delayed_work(&priv->request_scan, |
| round_jiffies_relative(HZ)); |
| |
| /* Send an empty event to user space. |
| * We don't send the received data on the event because |
| * it would require us to do complex transcoding, and |
| * we want to minimise the work done in the irq handler |
| * Use a request to extract the data. |
| * Also, we generate this even for any scan, regardless |
| * on how the scan was initiated. User space can just |
| * sync on periodic scan to get fresh data... |
| * Jean II */ |
| if (x->status == SCAN_COMPLETED_STATUS_COMPLETE) |
| handle_scan_event(priv); |
| break; |
| } |
| |
| case HOST_NOTIFICATION_STATUS_FRAG_LENGTH:{ |
| struct notif_frag_length *x = ¬if->u.frag_len; |
| |
| if (size == sizeof(*x)) |
| IPW_ERROR("Frag length: %d\n", |
| le16_to_cpu(x->frag_length)); |
| else |
| IPW_ERROR("Frag length of wrong size %d " |
| "(should be %zd)\n", |
| size, sizeof(*x)); |
| break; |
| } |
| |
| case HOST_NOTIFICATION_STATUS_LINK_DETERIORATION:{ |
| struct notif_link_deterioration *x = |
| ¬if->u.link_deterioration; |
| |
| if (size == sizeof(*x)) { |
| IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE, |
| "link deterioration: type %d, cnt %d\n", |
| x->silence_notification_type, |
| x->silence_count); |
| memcpy(&priv->last_link_deterioration, x, |
| sizeof(*x)); |
| } else { |
| IPW_ERROR("Link Deterioration of wrong size %d " |
| "(should be %zd)\n", |
| size, sizeof(*x)); |
| } |
| break; |
| } |
| |
| case HOST_NOTIFICATION_DINO_CONFIG_RESPONSE:{ |
| IPW_ERROR("Dino config\n"); |
| if (priv->hcmd |
| && priv->hcmd->cmd != HOST_CMD_DINO_CONFIG) |
| IPW_ERROR("Unexpected DINO_CONFIG_RESPONSE\n"); |
| |
| break; |
| } |
| |
| case HOST_NOTIFICATION_STATUS_BEACON_STATE:{ |
| struct notif_beacon_state *x = ¬if->u.beacon_state; |
| if (size != sizeof(*x)) { |
| IPW_ERROR |
| ("Beacon state of wrong size %d (should " |
| "be %zd)\n", size, sizeof(*x)); |
| break; |
| } |
| |
| if (le32_to_cpu(x->state) == |
| HOST_NOTIFICATION_STATUS_BEACON_MISSING) |
| ipw_handle_missed_beacon(priv, |
| le32_to_cpu(x-> |
| number)); |
| |
| break; |
| } |
| |
| case HOST_NOTIFICATION_STATUS_TGI_TX_KEY:{ |
| struct notif_tgi_tx_key *x = ¬if->u.tgi_tx_key; |
| if (size == sizeof(*x)) { |
| IPW_ERROR("TGi Tx Key: state 0x%02x sec type " |
| "0x%02x station %d\n", |
| x->key_state, x->security_type, |
| x->station_index); |
| break; |
| } |
| |
| IPW_ERROR |
| ("TGi Tx Key of wrong size %d (should be %zd)\n", |
| size, sizeof(*x)); |
| break; |
| } |
| |
| case HOST_NOTIFICATION_CALIB_KEEP_RESULTS:{ |
| struct notif_calibration *x = ¬if->u.calibration; |
| |
| if (size == sizeof(*x)) { |
| memcpy(&priv->calib, x, sizeof(*x)); |
| IPW_DEBUG_INFO("TODO: Calibration\n"); |
| break; |
| } |
| |
| IPW_ERROR |
| ("Calibration of wrong size %d (should be %zd)\n", |
| size, sizeof(*x)); |
| break; |
| } |
| |
| case HOST_NOTIFICATION_NOISE_STATS:{ |
| if (size == sizeof(u32)) { |
| priv->exp_avg_noise = |
| exponential_average(priv->exp_avg_noise, |
| (u8) (le32_to_cpu(notif->u.noise.value) & 0xff), |
| DEPTH_NOISE); |
| break; |
| } |
| |
| IPW_ERROR |
| ("Noise stat is wrong size %d (should be %zd)\n", |
| size, sizeof(u32)); |
| break; |
| } |
| |
| default: |
| IPW_DEBUG_NOTIF("Unknown notification: " |
| "subtype=%d,flags=0x%2x,size=%d\n", |
| notif->subtype, notif->flags, size); |
| } |
| } |
| |
| /** |
| * Destroys all DMA structures and initialise them again |
| * |
| * @param priv |
| * @return error code |
| */ |
| static int ipw_queue_reset(struct ipw_priv *priv) |
| { |
| int rc = 0; |
| /** @todo customize queue sizes */ |
| int nTx = 64, nTxCmd = 8; |
| ipw_tx_queue_free(priv); |
| /* Tx CMD queue */ |
| rc = ipw_queue_tx_init(priv, &priv->txq_cmd, nTxCmd, |
| IPW_TX_CMD_QUEUE_READ_INDEX, |
| IPW_TX_CMD_QUEUE_WRITE_INDEX, |
| IPW_TX_CMD_QUEUE_BD_BASE, |
| IPW_TX_CMD_QUEUE_BD_SIZE); |
| if (rc) { |
| IPW_ERROR("Tx Cmd queue init failed\n"); |
| goto error; |
| } |
| /* Tx queue(s) */ |
| rc = ipw_queue_tx_init(priv, &priv->txq[0], nTx, |
| IPW_TX_QUEUE_0_READ_INDEX, |
| IPW_TX_QUEUE_0_WRITE_INDEX, |
| IPW_TX_QUEUE_0_BD_BASE, IPW_TX_QUEUE_0_BD_SIZE); |
| if (rc) { |
| IPW_ERROR("Tx 0 queue init failed\n"); |
| goto error; |
| } |
| rc = ipw_queue_tx_init(priv, &priv->txq[1], nTx, |
| IPW_TX_QUEUE_1_READ_INDEX, |
| IPW_TX_QUEUE_1_WRITE_INDEX, |
| IPW_TX_QUEUE_1_BD_BASE, IPW_TX_QUEUE_1_BD_SIZE); |
| if (rc) { |
| IPW_ERROR("Tx 1 queue init failed\n"); |
| goto error; |
| } |
| rc = ipw_queue_tx_init(priv, &priv->txq[2], nTx, |
| IPW_TX_QUEUE_2_READ_INDEX, |
| IPW_TX_QUEUE_2_WRITE_INDEX, |
| IPW_TX_QUEUE_2_BD_BASE, IPW_TX_QUEUE_2_BD_SIZE); |
| if (rc) { |
| IPW_ERROR("Tx 2 queue init failed\n"); |
| goto error; |
| } |
| rc = ipw_queue_tx_init(priv, &priv->txq[3], nTx, |
| IPW_TX_QUEUE_3_READ_INDEX, |
| IPW_TX_QUEUE_3_WRITE_INDEX, |
| IPW_TX_QUEUE_3_BD_BASE, IPW_TX_QUEUE_3_BD_SIZE); |
| if (rc) { |
| IPW_ERROR("Tx 3 queue init failed\n"); |
| goto error; |
| } |
| /* statistics */ |
| priv->rx_bufs_min = 0; |
| priv->rx_pend_max = 0; |
| return rc; |
| |
| error: |
| ipw_tx_queue_free(priv); |
| return rc; |
| } |
| |
| /** |
| * Reclaim Tx queue entries no more used by NIC. |
| * |
| * When FW advances 'R' index, all entries between old and |
| * new 'R' index need to be reclaimed. As result, some free space |
| * forms. If there is enough free space (> low mark), wake Tx queue. |
| * |
| * @note Need to protect against garbage in 'R' index |
| * @param priv |
| * @param txq |
| * @param qindex |
| * @return Number of used entries remains in the queue |
| */ |
| static int ipw_queue_tx_reclaim(struct ipw_priv *priv, |
| struct clx2_tx_queue *txq, int qindex) |
| { |
| u32 hw_tail; |
| int used; |
| struct clx2_queue *q = &txq->q; |
| |
| hw_tail = ipw_read32(priv, q->reg_r); |
| if (hw_tail >= q->n_bd) { |
| IPW_ERROR |
| ("Read index for DMA queue (%d) is out of range [0-%d)\n", |
| hw_tail, q->n_bd); |
| goto done; |
| } |
| for (; q->last_used != hw_tail; |
| q->last_used = ipw_queue_inc_wrap(q->last_used, q->n_bd)) { |
| ipw_queue_tx_free_tfd(priv, txq); |
| priv->tx_packets++; |
| } |
| done: |
| if ((ipw_tx_queue_space(q) > q->low_mark) && |
| (qindex >= 0)) |
| netif_wake_queue(priv->net_dev); |
| used = q->first_empty - q->last_used; |
| if (used < 0) |
| used += q->n_bd; |
| |
| return used; |
| } |
| |
| static int ipw_queue_tx_hcmd(struct ipw_priv *priv, int hcmd, void *buf, |
| int len, int sync) |
| { |
| struct clx2_tx_queue *txq = &priv->txq_cmd; |
| struct clx2_queue *q = &txq->q; |
| struct tfd_frame *tfd; |
| |
| if (ipw_tx_queue_space(q) < (sync ? 1 : 2)) { |
| IPW_ERROR("No space for Tx\n"); |
| return -EBUSY; |
| } |
| |
| tfd = &txq->bd[q->first_empty]; |
| txq->txb[q->first_empty] = NULL; |
| |
| memset(tfd, 0, sizeof(*tfd)); |
| tfd->control_flags.message_type = TX_HOST_COMMAND_TYPE; |
| tfd->control_flags.control_bits = TFD_NEED_IRQ_MASK; |
| priv->hcmd_seq++; |
| tfd->u.cmd.index = hcmd; |
| tfd->u.cmd.length = len; |
| memcpy(tfd->u.cmd.payload, buf, len); |
| q->first_empty = ipw_queue_inc_wrap(q->first_empty, q->n_bd); |
| ipw_write32(priv, q->reg_w, q->first_empty); |
| _ipw_read32(priv, 0x90); |
| |
| return 0; |
| } |
| |
| /* |
| * Rx theory of operation |
| * |
| * The host allocates 32 DMA target addresses and passes the host address |
| * to the firmware at register IPW_RFDS_TABLE_LOWER + N * RFD_SIZE where N is |
| * 0 to 31 |
| * |
| * Rx Queue Indexes |
| * The host/firmware share two index registers for managing the Rx buffers. |
| * |
| * The READ index maps to the first position that the firmware may be writing |
| * to -- the driver can read up to (but not including) this position and get |
| * good data. |
| * The READ index is managed by the firmware once the card is enabled. |
| * |
| * The WRITE index maps to the last position the driver has read from -- the |
| * position preceding WRITE is the last slot the firmware can place a packet. |
| * |
| * The queue is empty (no good data) if WRITE = READ - 1, and is full if |
| * WRITE = READ. |
| * |
| * During initialization the host sets up the READ queue position to the first |
| * INDEX position, and WRITE to the last (READ - 1 wrapped) |
| * |
| * When the firmware places a packet in a buffer it will advance the READ index |
| * and fire the RX interrupt. The driver can then query the READ index and |
| * process as many packets as possible, moving the WRITE index forward as it |
| * resets the Rx queue buffers with new memory. |
| * |
| * The management in the driver is as follows: |
| * + A list of pre-allocated SKBs is stored in ipw->rxq->rx_free. When |
| * ipw->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled |
| * to replensish the ipw->rxq->rx_free. |
| * + In ipw_rx_queue_replenish (scheduled) if 'processed' != 'read' then the |
| * ipw->rxq is replenished and the READ INDEX is updated (updating the |
| * 'processed' and 'read' driver indexes as well) |
| * + A received packet is processed and handed to the kernel network stack, |
| * detached from the ipw->rxq. The driver 'processed' index is updated. |
| * + The Host/Firmware ipw->rxq is replenished at tasklet time from the rx_free |
| * list. If there are no allocated buffers in ipw->rxq->rx_free, the READ |
| * INDEX is not incremented and ipw->status(RX_STALLED) is set. If there |
| * were enough free buffers and RX_STALLED is set it is cleared. |
| * |
| * |
| * Driver sequence: |
| * |
| * ipw_rx_queue_alloc() Allocates rx_free |
| * ipw_rx_queue_replenish() Replenishes rx_free list from rx_used, and calls |
| * ipw_rx_queue_restock |
| * ipw_rx_queue_restock() Moves available buffers from rx_free into Rx |
| * queue, updates firmware pointers, and updates |
| * the WRITE index. If insufficient rx_free buffers |
| * are available, schedules ipw_rx_queue_replenish |
| * |
| * -- enable interrupts -- |
| * ISR - ipw_rx() Detach ipw_rx_mem_buffers from pool up to the |
| * READ INDEX, detaching the SKB from the pool. |
| * Moves the packet buffer from queue to rx_used. |
| * Calls ipw_rx_queue_restock to refill any empty |
| * slots. |
| * ... |
| * |
| */ |
| |
| /* |
| * If there are slots in the RX queue that need to be restocked, |
| * and we have free pre-allocated buffers, fill the ranks as much |
| * as we can pulling from rx_free. |
| * |
| * This moves the 'write' index forward to catch up with 'processed', and |
| * also updates the memory address in the firmware to reference the new |
| * target buffer. |
| */ |
| static void ipw_rx_queue_restock(struct ipw_priv *priv) |
| { |
| struct ipw_rx_queue *rxq = priv->rxq; |
| struct list_head *element; |
| struct ipw_rx_mem_buffer *rxb; |
| unsigned long flags; |
| int write; |
| |
| spin_lock_irqsave(&rxq->lock, flags); |
| write = rxq->write; |
| while ((ipw_rx_queue_space(rxq) > 0) && (rxq->free_count)) { |
| element = rxq->rx_free.next; |
| rxb = list_entry(element, struct ipw_rx_mem_buffer, list); |
| list_del(element); |
| |
| ipw_write32(priv, IPW_RFDS_TABLE_LOWER + rxq->write * RFD_SIZE, |
| rxb->dma_addr); |
| rxq->queue[rxq->write] = rxb; |
| rxq->write = (rxq->write + 1) % RX_QUEUE_SIZE; |
| rxq->free_count--; |
| } |
| spin_unlock_irqrestore(&rxq->lock, flags); |
| |
| /* If the pre-allocated buffer pool is dropping low, schedule to |
| * refill it */ |
| if (rxq->free_count <= RX_LOW_WATERMARK) |
| schedule_work(&priv->rx_replenish); |
| |
| /* If we've added more space for the firmware to place data, tell it */ |
| if (write != rxq->write) |
| ipw_write32(priv, IPW_RX_WRITE_INDEX, rxq->write); |
| } |
| |
| /* |
| * Move all used packet from rx_used to rx_free, allocating a new SKB for each. |
| * Also restock the Rx queue via ipw_rx_queue_restock. |
| * |
| * This is called as a scheduled work item (except for during initialization) |
| */ |
| static void ipw_rx_queue_replenish(void *data) |
| { |
| struct ipw_priv *priv = data; |
| struct ipw_rx_queue *rxq = priv->rxq; |
| struct list_head *element; |
| struct ipw_rx_mem_buffer *rxb; |
| unsigned long flags; |
| |
| spin_lock_irqsave(&rxq->lock, flags); |
| while (!list_empty(&rxq->rx_used)) { |
| element = rxq->rx_used.next; |
| rxb = list_entry(element, struct ipw_rx_mem_buffer, list); |
| rxb->skb = alloc_skb(IPW_RX_BUF_SIZE, GFP_ATOMIC); |
| if (!rxb->skb) { |
| printk(KERN_CRIT "%s: Can not allocate SKB buffers.\n", |
| priv->net_dev->name); |
| /* We don't reschedule replenish work here -- we will |
| * call the restock method and if it still needs |
| * more buffers it will schedule replenish */ |
| break; |
| } |
| list_del(element); |
| |
| rxb->dma_addr = |
| dma_map_single(&priv->pci_dev->dev, rxb->skb->data, |
| IPW_RX_BUF_SIZE, DMA_FROM_DEVICE); |
| |
| list_add_tail(&rxb->list, &rxq->rx_free); |
| rxq->free_count++; |
| } |
| spin_unlock_irqrestore(&rxq->lock, flags); |
| |
| ipw_rx_queue_restock(priv); |
| } |
| |
| static void ipw_bg_rx_queue_replenish(struct work_struct *work) |
| { |
| struct ipw_priv *priv = |
| container_of(work, struct ipw_priv, rx_replenish); |
| mutex_lock(&priv->mutex); |
| ipw_rx_queue_replenish(priv); |
| mutex_unlock(&priv->mutex); |
| } |
| |
| /* Assumes that the skb field of the buffers in 'pool' is kept accurate. |
| * If an SKB has been detached, the POOL needs to have its SKB set to NULL |
| * This free routine walks the list of POOL entries and if SKB is set to |
| * non NULL it is unmapped and freed |
| */ |
| static void ipw_rx_queue_free(struct ipw_priv *priv, struct ipw_rx_queue *rxq) |
| { |
| int i; |
| |
| if (!rxq) |
| return; |
| |
| for (i = 0; i < RX_QUEUE_SIZE + RX_FREE_BUFFERS; i++) { |
| if (rxq->pool[i].skb != NULL) { |
| dma_unmap_single(&priv->pci_dev->dev, |
| rxq->pool[i].dma_addr, |
| IPW_RX_BUF_SIZE, DMA_FROM_DEVICE); |
| dev_kfree_skb(rxq->pool[i].skb); |
| } |
| } |
| |
| kfree(rxq); |
| } |
| |
| static struct ipw_rx_queue *ipw_rx_queue_alloc(struct ipw_priv *priv) |
| { |
| struct ipw_rx_queue *rxq; |
| int i; |
| |
| rxq = kzalloc(sizeof(*rxq), GFP_KERNEL); |
| if (unlikely(!rxq)) { |
| IPW_ERROR("memory allocation failed\n"); |
| return NULL; |
| } |
| spin_lock_init(&rxq->lock); |
| INIT_LIST_HEAD(&rxq->rx_free); |
| INIT_LIST_HEAD(&rxq->rx_used); |
| |
| /* Fill the rx_used queue with _all_ of the Rx buffers */ |
| for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) |
| list_add_tail(&rxq->pool[i].list, &rxq->rx_used); |
| |
| /* Set us so that we have processed and used all buffers, but have |
| * not restocked the Rx queue with fresh buffers */ |
| rxq->read = rxq->write = 0; |
| rxq->free_count = 0; |
| |
| return rxq; |
| } |
| |
| static int ipw_is_rate_in_mask(struct ipw_priv *priv, int ieee_mode, u8 rate) |
| { |
| rate &= ~LIBIPW_BASIC_RATE_MASK; |
| if (ieee_mode == IEEE_A) { |
| switch (rate) { |
| case LIBIPW_OFDM_RATE_6MB: |
| return priv->rates_mask & LIBIPW_OFDM_RATE_6MB_MASK ? |
| 1 : 0; |
| case LIBIPW_OFDM_RATE_9MB: |
| return priv->rates_mask & LIBIPW_OFDM_RATE_9MB_MASK ? |
| 1 : 0; |
| case LIBIPW_OFDM_RATE_12MB: |
| return priv-> |
| rates_mask & LIBIPW_OFDM_RATE_12MB_MASK ? 1 : 0; |
| case LIBIPW_OFDM_RATE_18MB: |
| return priv-> |
| rates_mask & LIBIPW_OFDM_RATE_18MB_MASK ? 1 : 0; |
| case LIBIPW_OFDM_RATE_24MB: |
| return priv-> |
| rates_mask & LIBIPW_OFDM_RATE_24MB_MASK ? 1 : 0; |
| case LIBIPW_OFDM_RATE_36MB: |
| return priv-> |
| rates_mask & LIBIPW_OFDM_RATE_36MB_MASK ? 1 : 0; |
| case LIBIPW_OFDM_RATE_48MB: |
| return priv-> |
| rates_mask & LIBIPW_OFDM_RATE_48MB_MASK ? 1 : 0; |
| case LIBIPW_OFDM_RATE_54MB: |
| return priv-> |
| rates_mask & LIBIPW_OFDM_RATE_54MB_MASK ? 1 : 0; |
| default: |
| return 0; |
| } |
| } |
| |
| /* B and G mixed */ |
| switch (rate) { |
| case LIBIPW_CCK_RATE_1MB: |
| return priv->rates_mask & LIBIPW_CCK_RATE_1MB_MASK ? 1 : 0; |
| case LIBIPW_CCK_RATE_2MB: |
| return priv->rates_mask & LIBIPW_CCK_RATE_2MB_MASK ? 1 : 0; |
| case LIBIPW_CCK_RATE_5MB: |
| return priv->rates_mask & LIBIPW_CCK_RATE_5MB_MASK ? 1 : 0; |
| case LIBIPW_CCK_RATE_11MB: |
| return priv->rates_mask & LIBIPW_CCK_RATE_11MB_MASK ? 1 : 0; |
| } |
| |
| /* If we are limited to B modulations, bail at this point */ |
| if (ieee_mode == IEEE_B) |
| return 0; |
| |
| /* G */ |
| switch (rate) { |
| case LIBIPW_OFDM_RATE_6MB: |
| return priv->rates_mask & LIBIPW_OFDM_RATE_6MB_MASK ? 1 : 0; |
| case LIBIPW_OFDM_RATE_9MB: |
| return priv->rates_mask & LIBIPW_OFDM_RATE_9MB_MASK ? 1 : 0; |
| case LIBIPW_OFDM_RATE_12MB: |
| return priv->rates_mask & LIBIPW_OFDM_RATE_12MB_MASK ? 1 : 0; |
| case LIBIPW_OFDM_RATE_18MB: |
| return priv->rates_mask & LIBIPW_OFDM_RATE_18MB_MASK ? 1 : 0; |
| case LIBIPW_OFDM_RATE_24MB: |
| return priv->rates_mask & LIBIPW_OFDM_RATE_24MB_MASK ? 1 : 0; |
| case LIBIPW_OFDM_RATE_36MB: |
| return priv->rates_mask & LIBIPW_OFDM_RATE_36MB_MASK ? 1 : 0; |
| case LIBIPW_OFDM_RATE_48MB: |
| return priv->rates_mask & LIBIPW_OFDM_RATE_48MB_MASK ? 1 : 0; |
| case LIBIPW_OFDM_RATE_54MB: |
| return priv->rates_mask & LIBIPW_OFDM_RATE_54MB_MASK ? 1 : 0; |
| } |
| |
| return 0; |
| } |
| |
| static int ipw_compatible_rates(struct ipw_priv *priv, |
| const struct libipw_network *network, |
| struct ipw_supported_rates *rates) |
| { |
| int num_rates, i; |
| |
| memset(rates, 0, sizeof(*rates)); |
| num_rates = min(network->rates_len, (u8) IPW_MAX_RATES); |
| rates->num_rates = 0; |
| for (i = 0; i < num_rates; i++) { |
| if (!ipw_is_rate_in_mask(priv, network->mode, |
| network->rates[i])) { |
| |
| if (network->rates[i] & LIBIPW_BASIC_RATE_MASK) { |
| IPW_DEBUG_SCAN("Adding masked mandatory " |
| "rate %02X\n", |
| network->rates[i]); |
| rates->supported_rates[rates->num_rates++] = |
| network->rates[i]; |
| continue; |
| } |
| |
| IPW_DEBUG_SCAN("Rate %02X masked : 0x%08X\n", |
| network->rates[i], priv->rates_mask); |
| continue; |
| } |
| |
| rates->supported_rates[rates->num_rates++] = network->rates[i]; |
| } |
| |
| num_rates = min(network->rates_ex_len, |
| (u8) (IPW_MAX_RATES - num_rates)); |
| for (i = 0; i < num_rates; i++) { |
| if (!ipw_is_rate_in_mask(priv, network->mode, |
| network->rates_ex[i])) { |
| if (network->rates_ex[i] & LIBIPW_BASIC_RATE_MASK) { |
| IPW_DEBUG_SCAN("Adding masked mandatory " |
| "rate %02X\n", |
| network->rates_ex[i]); |
| rates->supported_rates[rates->num_rates++] = |
| network->rates[i]; |
| continue; |
| } |
| |
| IPW_DEBUG_SCAN("Rate %02X masked : 0x%08X\n", |
| network->rates_ex[i], priv->rates_mask); |
| continue; |
| } |
| |
| rates->supported_rates[rates->num_rates++] = |
| network->rates_ex[i]; |
| } |
| |
| return 1; |
| } |
| |
| static void ipw_copy_rates(struct ipw_supported_rates *dest, |
| const struct ipw_supported_rates *src) |
| { |
| u8 i; |
| for (i = 0; i < src->num_rates; i++) |
| dest->supported_rates[i] = src->supported_rates[i]; |
| dest->num_rates = src->num_rates; |
| } |
| |
| /* TODO: Look at sniffed packets in the air to determine if the basic rate |
| * mask should ever be used -- right now all callers to add the scan rates are |
| * set with the modulation = CCK, so BASIC_RATE_MASK is never set... */ |
| static void ipw_add_cck_scan_rates(struct ipw_supported_rates *rates, |
| u8 modulation, u32 rate_mask) |
| { |
| u8 basic_mask = (LIBIPW_OFDM_MODULATION == modulation) ? |
| LIBIPW_BASIC_RATE_MASK : 0; |
| |
| if (rate_mask & LIBIPW_CCK_RATE_1MB_MASK) |
| rates->supported_rates[rates->num_rates++] = |
| LIBIPW_BASIC_RATE_MASK | LIBIPW_CCK_RATE_1MB; |
| |
| if (rate_mask & LIBIPW_CCK_RATE_2MB_MASK) |
| rates->supported_rates[rates->num_rates++] = |
| LIBIPW_BASIC_RATE_MASK | LIBIPW_CCK_RATE_2MB; |
| |
| if (rate_mask & LIBIPW_CCK_RATE_5MB_MASK) |
| rates->supported_rates[rates->num_rates++] = basic_mask | |
| LIBIPW_CCK_RATE_5MB; |
| |
| if (rate_mask & LIBIPW_CCK_RATE_11MB_MASK) |
| rates->supported_rates[rates->num_rates++] = basic_mask | |
| LIBIPW_CCK_RATE_11MB; |
| } |
| |
| static void ipw_add_ofdm_scan_rates(struct ipw_supported_rates *rates, |
| u8 modulation, u32 rate_mask) |
| { |
| u8 basic_mask = (LIBIPW_OFDM_MODULATION == modulation) ? |
| LIBIPW_BASIC_RATE_MASK : 0; |
| |
| if (rate_mask & LIBIPW_OFDM_RATE_6MB_MASK) |
| rates->supported_rates[rates->num_rates++] = basic_mask | |
| LIBIPW_OFDM_RATE_6MB; |
| |
| if (rate_mask & LIBIPW_OFDM_RATE_9MB_MASK) |
| rates->supported_rates[rates->num_rates++] = |
| LIBIPW_OFDM_RATE_9MB; |
| |
| if (rate_mask & LIBIPW_OFDM_RATE_12MB_MASK) |
| rates->supported_rates[rates->num_rates++] = basic_mask | |
| LIBIPW_OFDM_RATE_12MB; |
| |
| if (rate_mask & LIBIPW_OFDM_RATE_18MB_MASK) |
| rates->supported_rates[rates->num_rates++] = |
| LIBIPW_OFDM_RATE_18MB; |
| |
| if (rate_mask & LIBIPW_OFDM_RATE_24MB_MASK) |
| rates->supported_rates[rates->num_rates++] = basic_mask | |
| LIBIPW_OFDM_RATE_24MB; |
| |
| if (rate_mask & LIBIPW_OFDM_RATE_36MB_MASK) |
| rates->supported_rates[rates->num_rates++] = |
| LIBIPW_OFDM_RATE_36MB; |
| |
| if (rate_mask & LIBIPW_OFDM_RATE_48MB_MASK) |
| rates->supported_rates[rates->num_rates++] = |
| LIBIPW_OFDM_RATE_48MB; |
| |
| if (rate_mask & LIBIPW_OFDM_RATE_54MB_MASK) |
| rates->supported_rates[rates->num_rates++] = |
| LIBIPW_OFDM_RATE_54MB; |
| } |
| |
| struct ipw_network_match { |
| struct libipw_network *network; |
| struct ipw_supported_rates rates; |
| }; |
| |
| static int ipw_find_adhoc_network(struct ipw_priv *priv, |
| struct ipw_network_match *match, |
| struct libipw_network *network, |
| int roaming) |
| { |
| struct ipw_supported_rates rates; |
| |
| /* Verify that this network's capability is compatible with the |
| * current mode (AdHoc or Infrastructure) */ |
| if ((priv->ieee->iw_mode == IW_MODE_ADHOC && |
| !(network->capability & WLAN_CAPABILITY_IBSS))) { |
| IPW_DEBUG_MERGE("Network '%*pE (%pM)' excluded due to capability mismatch.\n", |
| network->ssid_len, network->ssid, |
| network->bssid); |
| return 0; |
| } |
| |
| if (unlikely(roaming)) { |
| /* If we are roaming, then ensure check if this is a valid |
| * network to try and roam to */ |
| if ((network->ssid_len != match->network->ssid_len) || |
| memcmp(network->ssid, match->network->ssid, |
| network->ssid_len)) { |
| IPW_DEBUG_MERGE("Network '%*pE (%pM)' excluded because of non-network ESSID.\n", |
| network->ssid_len, network->ssid, |
| network->bssid); |
| return 0; |
| } |
| } else { |
| /* If an ESSID has been configured then compare the broadcast |
| * ESSID to ours */ |
| if ((priv->config & CFG_STATIC_ESSID) && |
| ((network->ssid_len != priv->essid_len) || |
| memcmp(network->ssid, priv->essid, |
| min(network->ssid_len, priv->essid_len)))) { |
| IPW_DEBUG_MERGE("Network '%*pE (%pM)' excluded because of ESSID mismatch: '%*pE'.\n", |
| network->ssid_len, network->ssid, |
| network->bssid, priv->essid_len, |
| priv->essid); |
| return 0; |
| } |
| } |
| |
| /* If the old network rate is better than this one, don't bother |
| * testing everything else. */ |
| |
| if (network->time_stamp[0] < match->network->time_stamp[0]) { |
| IPW_DEBUG_MERGE("Network '%*pE excluded because newer than current network.\n", |
| match->network->ssid_len, match->network->ssid); |
| return 0; |
| } else if (network->time_stamp[1] < match->network->time_stamp[1]) { |
| IPW_DEBUG_MERGE("Network '%*pE excluded because newer than current network.\n", |
| match->network->ssid_len, match->network->ssid); |
| return 0; |
| } |
| |
| /* Now go through and see if the requested network is valid... */ |
| if (priv->ieee->scan_age != 0 && |
| time_after(jiffies, network->last_scanned + priv->ieee->scan_age)) { |
| IPW_DEBUG_MERGE("Network '%*pE (%pM)' excluded because of age: %ums.\n", |
| network->ssid_len, network->ssid, |
| network->bssid, |
| jiffies_to_msecs(jiffies - |
| network->last_scanned)); |
| return 0; |
| } |
| |
| if ((priv->config & CFG_STATIC_CHANNEL) && |
| (network->channel != priv->channel)) { |
| IPW_DEBUG_MERGE("Network '%*pE (%pM)' excluded because of channel mismatch: %d != %d.\n", |
| network->ssid_len, network->ssid, |
| network->bssid, |
| network->channel, priv->channel); |
| return 0; |
| } |
| |
| /* Verify privacy compatibility */ |
| if (((priv->capability & CAP_PRIVACY_ON) ? 1 : 0) != |
| ((network->capability & WLAN_CAPABILITY_PRIVACY) ? 1 : 0)) { |
| IPW_DEBUG_MERGE("Network '%*pE (%pM)' excluded because of privacy mismatch: %s != %s.\n", |
| network->ssid_len, network->ssid, |
| network->bssid, |
| priv-> |
| capability & CAP_PRIVACY_ON ? "on" : "off", |
| network-> |
| capability & WLAN_CAPABILITY_PRIVACY ? "on" : |
| "off"); |
| return 0; |
| } |
| |
| if (ether_addr_equal(network->bssid, priv->bssid)) { |
| IPW_DEBUG_MERGE("Network '%*pE (%pM)' excluded because of the same BSSID match: %pM.\n", |
| network->ssid_len, network->ssid, |
| network->bssid, priv->bssid); |
| return 0; |
| } |
| |
| /* Filter out any incompatible freq / mode combinations */ |
| if (!libipw_is_valid_mode(priv->ieee, network->mode)) { |
| IPW_DEBUG_MERGE("Network '%*pE (%pM)' excluded because of invalid frequency/mode combination.\n", |
| network->ssid_len, network->ssid, |
| network->bssid); |
| return 0; |
| } |
| |
| /* Ensure that the rates supported by the driver are compatible with |
| * this AP, including verification of basic rates (mandatory) */ |
| if (!ipw_compatible_rates(priv, network, &rates)) { |
| IPW_DEBUG_MERGE("Network '%*pE (%pM)' excluded because configured rate mask excludes AP mandatory rate.\n", |
| network->ssid_len, network->ssid, |
| network->bssid); |
| return 0; |
| } |
| |
| if (rates.num_rates == 0) { |
| IPW_DEBUG_MERGE("Network '%*pE (%pM)' excluded because of no compatible rates.\n", |
| network->ssid_len, network->ssid, |
| network->bssid); |
| return 0; |
| } |
| |
| /* TODO: Perform any further minimal comparititive tests. We do not |
| * want to put too much policy logic here; intelligent scan selection |
| * should occur within a generic IEEE 802.11 user space tool. */ |
| |
| /* Set up 'new' AP to this network */ |
| ipw_copy_rates(&match->rates, &rates); |
| match->network = network; |
| IPW_DEBUG_MERGE("Network '%*pE (%pM)' is a viable match.\n", |
| network->ssid_len, network->ssid, network->bssid); |
| |
| return 1; |
| } |
| |
| static void ipw_merge_adhoc_network(struct work_struct *work) |
| { |
| struct ipw_priv *priv = |
| container_of(work, struct ipw_priv, merge_networks); |
| struct libipw_network *network = NULL; |
| struct ipw_network_match match = { |
| .network = priv->assoc_network |
| }; |
| |
| if ((priv->status & STATUS_ASSOCIATED) && |
| (priv->ieee->iw_mode == IW_MODE_ADHOC)) { |
| /* First pass through ROAM process -- look for a better |
| * network */ |
| unsigned long flags; |
| |
| spin_lock_irqsave(&priv->ieee->lock, flags); |
| list_for_each_entry(network, &priv->ieee->network_list, list) { |
| if (network != priv->assoc_network) |
| ipw_find_adhoc_network(priv, &match, network, |
| 1); |
| } |
| spin_unlock_irqrestore(&priv->ieee->lock, flags); |
| |
| if (match.network == priv->assoc_network) { |
| IPW_DEBUG_MERGE("No better ADHOC in this network to " |
| "merge to.\n"); |
| return; |
| } |
| |
| mutex_lock(&priv->mutex); |
| if ((priv->ieee->iw_mode == IW_MODE_ADHOC)) { |
| IPW_DEBUG_MERGE("remove network %*pE\n", |
| priv->essid_len, priv->essid); |
| ipw_remove_current_network(priv); |
| } |
| |
| ipw_disassociate(priv); |
| priv->assoc_network = match.network; |
| mutex_unlock(&priv->mutex); |
| return; |
| } |
| } |
| |
| static int ipw_best_network(struct ipw_priv *priv, |
| struct ipw_network_match *match, |
| struct libipw_network *network, int roaming) |
| { |
| struct ipw_supported_rates rates; |
| |
| /* Verify that this network's capability is compatible with the |
| * current mode (AdHoc or Infrastructure) */ |
| if ((priv->ieee->iw_mode == IW_MODE_INFRA && |
| !(network->capability & WLAN_CAPABILITY_ESS)) || |
| (priv->ieee->iw_mode == IW_MODE_ADHOC && |
| !(network->capability & WLAN_CAPABILITY_IBSS))) { |
| IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded due to capability mismatch.\n", |
| network->ssid_len, network->ssid, |
| network->bssid); |
| return 0; |
| } |
| |
| if (unlikely(roaming)) { |
| /* If we are roaming, then ensure check if this is a valid |
| * network to try and roam to */ |
| if ((network->ssid_len != match->network->ssid_len) || |
| memcmp(network->ssid, match->network->ssid, |
| network->ssid_len)) { |
| IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded because of non-network ESSID.\n", |
| network->ssid_len, network->ssid, |
| network->bssid); |
| return 0; |
| } |
| } else { |
| /* If an ESSID has been configured then compare the broadcast |
| * ESSID to ours */ |
| if ((priv->config & CFG_STATIC_ESSID) && |
| ((network->ssid_len != priv->essid_len) || |
| memcmp(network->ssid, priv->essid, |
| min(network->ssid_len, priv->essid_len)))) { |
| IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded because of ESSID mismatch: '%*pE'.\n", |
| network->ssid_len, network->ssid, |
| network->bssid, priv->essid_len, |
| priv->essid); |
| return 0; |
| } |
| } |
| |
| /* If the old network rate is better than this one, don't bother |
| * testing everything else. */ |
| if (match->network && match->network->stats.rssi > network->stats.rssi) { |
| IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded because '%*pE (%pM)' has a stronger signal.\n", |
| network->ssid_len, network->ssid, |
| network->bssid, match->network->ssid_len, |
| match->network->ssid, match->network->bssid); |
| return 0; |
| } |
| |
| /* If this network has already had an association attempt within the |
| * last 3 seconds, do not try and associate again... */ |
| if (network->last_associate && |
| time_after(network->last_associate + (HZ * 3UL), jiffies)) { |
| IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded because of storming (%ums since last assoc attempt).\n", |
| network->ssid_len, network->ssid, |
| network->bssid, |
| jiffies_to_msecs(jiffies - |
| network->last_associate)); |
| return 0; |
| } |
| |
| /* Now go through and see if the requested network is valid... */ |
| if (priv->ieee->scan_age != 0 && |
| time_after(jiffies, network->last_scanned + priv->ieee->scan_age)) { |
| IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded because of age: %ums.\n", |
| network->ssid_len, network->ssid, |
| network->bssid, |
| jiffies_to_msecs(jiffies - |
| network->last_scanned)); |
| return 0; |
| } |
| |
| if ((priv->config & CFG_STATIC_CHANNEL) && |
| (network->channel != priv->channel)) { |
| IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded because of channel mismatch: %d != %d.\n", |
| network->ssid_len, network->ssid, |
| network->bssid, |
| network->channel, priv->channel); |
| return 0; |
| } |
| |
| /* Verify privacy compatibility */ |
| if (((priv->capability & CAP_PRIVACY_ON) ? 1 : 0) != |
| ((network->capability & WLAN_CAPABILITY_PRIVACY) ? 1 : 0)) { |
| IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded because of privacy mismatch: %s != %s.\n", |
| network->ssid_len, network->ssid, |
| network->bssid, |
| priv->capability & CAP_PRIVACY_ON ? "on" : |
| "off", |
| network->capability & |
| WLAN_CAPABILITY_PRIVACY ? "on" : "off"); |
| return 0; |
| } |
| |
| if ((priv->config & CFG_STATIC_BSSID) && |
| !ether_addr_equal(network->bssid, priv->bssid)) { |
| IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded because of BSSID mismatch: %pM.\n", |
| network->ssid_len, network->ssid, |
| network->bssid, priv->bssid); |
| return 0; |
| } |
| |
| /* Filter out any incompatible freq / mode combinations */ |
| if (!libipw_is_valid_mode(priv->ieee, network->mode)) { |
| IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded because of invalid frequency/mode combination.\n", |
| network->ssid_len, network->ssid, |
| network->bssid); |
| return 0; |
| } |
| |
| /* Filter out invalid channel in current GEO */ |
| if (!libipw_is_valid_channel(priv->ieee, network->channel)) { |
| IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded because of invalid channel in current GEO\n", |
| network->ssid_len, network->ssid, |
| network->bssid); |
| return 0; |
| } |
| |
| /* Ensure that the rates supported by the driver are compatible with |
| * this AP, including verification of basic rates (mandatory) */ |
| if (!ipw_compatible_rates(priv, network, &rates)) { |
| IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded because configured rate mask excludes AP mandatory rate.\n", |
| network->ssid_len, network->ssid, |
| network->bssid); |
| return 0; |
| } |
| |
| if (rates.num_rates == 0) { |
| IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded because of no compatible rates.\n", |
| network->ssid_len, network->ssid, |
| network->bssid); |
| return 0; |
| } |
| |
| /* TODO: Perform any further minimal comparititive tests. We do not |
| * want to put too much policy logic here; intelligent scan selection |
| * should occur within a generic IEEE 802.11 user space tool. */ |
| |
| /* Set up 'new' AP to this network */ |
| ipw_copy_rates(&match->rates, &rates); |
| match->network = network; |
| |
| IPW_DEBUG_ASSOC("Network '%*pE (%pM)' is a viable match.\n", |
| network->ssid_len, network->ssid, network->bssid); |
| |
| return 1; |
| } |
| |
| static void ipw_adhoc_create(struct ipw_priv *priv, |
| struct libipw_network *network) |
| { |
| const struct libipw_geo *geo = libipw_get_geo(priv->ieee); |
| int i; |
| |
| /* |
| * For the purposes of scanning, we can set our wireless mode |
| * to trigger scans across combinations of bands, but when it |
| * comes to creating a new ad-hoc network, we have tell the FW |
| * exactly which band to use. |
| * |
| * We also have the possibility of an invalid channel for the |
| * chossen band. Attempting to create a new ad-hoc network |
| * with an invalid channel for wireless mode will trigger a |
| * FW fatal error. |
| * |
| */ |
| switch (libipw_is_valid_channel(priv->ieee, priv->channel)) { |
| case LIBIPW_52GHZ_BAND: |
| network->mode = IEEE_A; |
| i = libipw_channel_to_index(priv->ieee, priv->channel); |
| BUG_ON(i == -1); |
| if (geo->a[i].flags & LIBIPW_CH_PASSIVE_ONLY) { |
| IPW_WARNING("Overriding invalid channel\n"); |
| priv->channel = geo->a[0].channel; |
| } |
| break; |
| |
| case LIBIPW_24GHZ_BAND: |
| if (priv->ieee->mode & IEEE_G) |
| network->mode = IEEE_G; |
| else |
| network->mode = IEEE_B; |
| i = libipw_channel_to_index(priv->ieee, priv->channel); |
| BUG_ON(i == -1); |
| if (geo->bg[i].flags & LIBIPW_CH_PASSIVE_ONLY) { |
| IPW_WARNING("Overriding invalid channel\n"); |
| priv->channel = geo->bg[0].channel; |
| } |
| break; |
| |
| default: |
| IPW_WARNING("Overriding invalid channel\n"); |
| if (priv->ieee->mode & IEEE_A) { |
| network->mode = IEEE_A; |
| priv->channel = geo->a[0].channel; |
| } else if (priv->ieee->mode & IEEE_G) { |
| network->mode = IEEE_G; |
| priv->channel = geo->bg[0].channel; |
| } else { |
| network->mode = IEEE_B; |
| priv->channel = geo->bg[0].channel; |
| } |
| break; |
| } |
| |
| network->channel = priv->channel; |
| priv->config |= CFG_ADHOC_PERSIST; |
| ipw_create_bssid(priv, network->bssid); |
| network->ssid_len = priv->essid_len; |
| memcpy(network->ssid, priv->essid, priv->essid_len); |
| memset(&network->stats, 0, sizeof(network->stats)); |
| network->capability = WLAN_CAPABILITY_IBSS; |
| if (!(priv->config & CFG_PREAMBLE_LONG)) |
| network->capability |= WLAN_CAPABILITY_SHORT_PREAMBLE; |
| if (priv->capability & CAP_PRIVACY_ON) |
| network->capability |= WLAN_CAPABILITY_PRIVACY; |
| network->rates_len = min(priv->rates.num_rates, MAX_RATES_LENGTH); |
| memcpy(network->rates, priv->rates.supported_rates, network->rates_len); |
| network->rates_ex_len = priv->rates.num_rates - network->rates_len; |
| memcpy(network->rates_ex, |
| &priv->rates.supported_rates[network->rates_len], |
| network->rates_ex_len); |
| network->last_scanned = 0; |
| network->flags = 0; |
| network->last_associate = 0; |
| network->time_stamp[0] = 0; |
| network->time_stamp[1] = 0; |
| network->beacon_interval = 100; /* Default */ |
| network->listen_interval = 10; /* Default */ |
| network->atim_window = 0; /* Default */ |
| network->wpa_ie_len = 0; |
| network->rsn_ie_len = 0; |
| } |
| |
| static void ipw_send_tgi_tx_key(struct ipw_priv *priv, int type, int index) |
| { |
| struct ipw_tgi_tx_key key; |
| |
| if (!(priv->ieee->sec.flags & (1 << index))) |
| return; |
| |
| key.key_id = index; |
| memcpy(key.key, priv->ieee->sec.keys[index], SCM_TEMPORAL_KEY_LENGTH); |
| key.security_type = type; |
| key.station_index = 0; /* always 0 for BSS */ |
| key.flags = 0; |
| /* 0 for new key; previous value of counter (after fatal error) */ |
| key.tx_counter[0] = cpu_to_le32(0); |
| key.tx_counter[1] = cpu_to_le32(0); |
| |
| ipw_send_cmd_pdu(priv, IPW_CMD_TGI_TX_KEY, sizeof(key), &key); |
| } |
| |
| static void ipw_send_wep_keys(struct ipw_priv *priv, int type) |
| { |
| struct ipw_wep_key key; |
| int i; |
| |
| key.cmd_id = DINO_CMD_WEP_KEY; |
| key.seq_num = 0; |
| |
| /* Note: AES keys cannot be set for multiple times. |
| * Only set it at the first time. */ |
| for (i = 0; i < 4; i++) { |
| key.key_index = i | type; |
| if (!(priv->ieee->sec.flags & (1 << i))) { |
| key.key_size = 0; |
| continue; |
| } |
| |
| key.key_size = priv->ieee->sec.key_sizes[i]; |
| memcpy(key.key, priv->ieee->sec.keys[i], key.key_size); |
| |
| ipw_send_cmd_pdu(priv, IPW_CMD_WEP_KEY, sizeof(key), &key); |
| } |
| } |
| |
| static void ipw_set_hw_decrypt_unicast(struct ipw_priv *priv, int level) |
| { |
| if (priv->ieee->host_encrypt) |
| return; |
| |
| switch (level) { |
| case SEC_LEVEL_3: |
| priv->sys_config.disable_unicast_decryption = 0; |
| priv->ieee->host_decrypt = 0; |
| break; |
| case SEC_LEVEL_2: |
| priv->sys_config.disable_unicast_decryption = 1; |
| priv->ieee->host_decrypt = 1; |
| break; |
| case SEC_LEVEL_1: |
| priv->sys_config.disable_unicast_decryption = 0; |
| priv->ieee->host_decrypt = 0; |
| break; |
| case SEC_LEVEL_0: |
| priv->sys_config.disable_unicast_decryption = 1; |
| break; |
| default: |
| break; |
| } |
| } |
| |
| static void ipw_set_hw_decrypt_multicast(struct ipw_priv *priv, int level) |
| { |
| if (priv->ieee->host_encrypt) |
| return; |
| |
| switch (level) { |
| case SEC_LEVEL_3: |
| priv->sys_config.disable_multicast_decryption = 0; |
| break; |
| case SEC_LEVEL_2: |
| priv->sys_config.disable_multicast_decryption = 1; |
| break; |
| case SEC_LEVEL_1: |
| priv->sys_config.disable_multicast_decryption = 0; |
| break; |
| case SEC_LEVEL_0: |
| priv->sys_config.disable_multicast_decryption = 1; |
| break; |
| default: |
| break; |
| } |
| } |
| |
| static void ipw_set_hwcrypto_keys(struct ipw_priv *priv) |
| { |
| switch (priv->ieee->sec.level) { |
| case SEC_LEVEL_3: |
| if (priv->ieee->sec.flags & SEC_ACTIVE_KEY) |
| ipw_send_tgi_tx_key(priv, |
| DCT_FLAG_EXT_SECURITY_CCM, |
| priv->ieee->sec.active_key); |
| |
| if (!priv->ieee->host_mc_decrypt) |
| ipw_send_wep_keys(priv, DCW_WEP_KEY_SEC_TYPE_CCM); |
| break; |
| case SEC_LEVEL_2: |
| if (priv->ieee->sec.flags & SEC_ACTIVE_KEY) |
| ipw_send_tgi_tx_key(priv, |
| DCT_FLAG_EXT_SECURITY_TKIP, |
| priv->ieee->sec.active_key); |
| break; |
| case SEC_LEVEL_1: |
| ipw_send_wep_keys(priv, DCW_WEP_KEY_SEC_TYPE_WEP); |
| ipw_set_hw_decrypt_unicast(priv, priv->ieee->sec.level); |
| ipw_set_hw_decrypt_multicast(priv, priv->ieee->sec.level); |
| break; |
| case SEC_LEVEL_0: |
| default: |
| break; |
| } |
| } |
| |
| static void ipw_adhoc_check(void *data) |
| { |
| struct ipw_priv *priv = data; |
| |
| if (priv->missed_adhoc_beacons++ > priv->disassociate_threshold && |
| !(priv->config & CFG_ADHOC_PERSIST)) { |
| IPW_DEBUG(IPW_DL_INFO | IPW_DL_NOTIF | |
| IPW_DL_STATE | IPW_DL_ASSOC, |
| "Missed beacon: %d - disassociate\n", |
| priv->missed_adhoc_beacons); |
| ipw_remove_current_network(priv); |
| ipw_disassociate(priv); |
| return; |
| } |
| |
| schedule_delayed_work(&priv->adhoc_check, |
| le16_to_cpu(priv->assoc_request.beacon_interval)); |
| } |
| |
| static void ipw_bg_adhoc_check(struct work_struct *work) |
| { |
| struct ipw_priv *priv = |
| container_of(work, struct ipw_priv, adhoc_check.work); |
| mutex_lock(&priv->mutex); |
| ipw_adhoc_check(priv); |
| mutex_unlock(&priv->mutex); |
| } |
| |
| static void ipw_debug_config(struct ipw_priv *priv) |
| { |
| IPW_DEBUG_INFO("Scan completed, no valid APs matched " |
| "[CFG 0x%08X]\n", priv->config); |
| if (priv->config & CFG_STATIC_CHANNEL) |
| IPW_DEBUG_INFO("Channel locked to %d\n", priv->channel); |
| else |
| IPW_DEBUG_INFO("Channel unlocked.\n"); |
| if (priv->config & CFG_STATIC_ESSID) |
| IPW_DEBUG_INFO("ESSID locked to '%*pE'\n", |
| priv->essid_len, priv->essid); |
| else |
| IPW_DEBUG_INFO("ESSID unlocked.\n"); |
| if (priv->config & CFG_STATIC_BSSID) |
| IPW_DEBUG_INFO("BSSID locked to %pM\n", priv->bssid); |
| else |
| IPW_DEBUG_INFO("BSSID unlocked.\n"); |
| if (priv->capability & CAP_PRIVACY_ON) |
| IPW_DEBUG_INFO("PRIVACY on\n"); |
| else |
| IPW_DEBUG_INFO("PRIVACY off\n"); |
| IPW_DEBUG_INFO("RATE MASK: 0x%08X\n", priv->rates_mask); |
| } |
| |
| static void ipw_set_fixed_rate(struct ipw_priv *priv, int mode) |
| { |
| /* TODO: Verify that this works... */ |
| struct ipw_fixed_rate fr; |
| u32 reg; |
| u16 mask = 0; |
| u16 new_tx_rates = priv->rates_mask; |
| |
| /* Identify 'current FW band' and match it with the fixed |
| * Tx rates */ |
| |
| switch (priv->ieee->freq_band) { |
| case LIBIPW_52GHZ_BAND: /* A only */ |
| /* IEEE_A */ |
| if (priv->rates_mask & ~LIBIPW_OFDM_RATES_MASK) { |
| /* Invalid fixed rate mask */ |
| IPW_DEBUG_WX |
| ("invalid fixed rate mask in ipw_set_fixed_rate\n"); |
| new_tx_rates = 0; |
| break; |
| } |
| |
| new_tx_rates >>= LIBIPW_OFDM_SHIFT_MASK_A; |
| break; |
| |
| default: /* 2.4Ghz or Mixed */ |
| /* IEEE_B */ |
| if (mode == IEEE_B) { |
| if (new_tx_rates & ~LIBIPW_CCK_RATES_MASK) { |
| /* Invalid fixed rate mask */ |
| IPW_DEBUG_WX |
| ("invalid fixed rate mask in ipw_set_fixed_rate\n"); |
| new_tx_rates = 0; |
| } |
| break; |
| } |
| |
| /* IEEE_G */ |
| if (new_tx_rates & ~(LIBIPW_CCK_RATES_MASK | |
| LIBIPW_OFDM_RATES_MASK)) { |
| /* Invalid fixed rate mask */ |
| IPW_DEBUG_WX |
| ("invalid fixed rate mask in ipw_set_fixed_rate\n"); |
| new_tx_rates = 0; |
| break; |
| } |
| |
| if (LIBIPW_OFDM_RATE_6MB_MASK & new_tx_rates) { |
| mask |= (LIBIPW_OFDM_RATE_6MB_MASK >> 1); |
| new_tx_rates &= ~LIBIPW_OFDM_RATE_6MB_MASK; |
| } |
| |
| if (LIBIPW_OFDM_RATE_9MB_MASK & new_tx_rates) { |
| mask |= (LIBIPW_OFDM_RATE_9MB_MASK >> 1); |
| new_tx_rates &= ~LIBIPW_OFDM_RATE_9MB_MASK; |
| } |
| |
| if (LIBIPW_OFDM_RATE_12MB_MASK & new_tx_rates) { |
| mask |= (LIBIPW_OFDM_RATE_12MB_MASK >> 1); |
| new_tx_rates &= ~LIBIPW_OFDM_RATE_12MB_MASK; |
| } |
| |
| new_tx_rates |= mask; |
| break; |
| } |
| |
| fr.tx_rates = cpu_to_le16(new_tx_rates); |
| |
| reg = ipw_read32(priv, IPW_MEM_FIXED_OVERRIDE); |
| ipw_write_reg32(priv, reg, *(u32 *) & fr); |
| } |
| |
| static void ipw_abort_scan(struct ipw_priv *priv) |
| { |
| int err; |
| |
| if (priv->status & STATUS_SCAN_ABORTING) { |
| IPW_DEBUG_HC("Ignoring concurrent scan abort request.\n"); |
| return; |
| } |
| priv->status |= STATUS_SCAN_ABORTING; |
| |
| err = ipw_send_scan_abort(priv); |
| if (err) |
| IPW_DEBUG_HC("Request to abort scan failed.\n"); |
| } |
| |
| static void ipw_add_scan_channels(struct ipw_priv *priv, |
| struct ipw_scan_request_ext *scan, |
| int scan_type) |
| { |
| int channel_index = 0; |
| const struct libipw_geo *geo; |
| int i; |
| |
| geo = libipw_get_geo(priv->ieee); |
| |
| if (priv->ieee->freq_band & LIBIPW_52GHZ_BAND) { |
| int start = channel_index; |
| for (i = 0; i < geo->a_channels; i++) { |
| if ((priv->status & STATUS_ASSOCIATED) && |
| geo->a[i].channel == priv->channel) |
| continue; |
| channel_index++; |
| scan->channels_list[channel_index] = geo->a[i].channel; |
| ipw_set_scan_type(scan, channel_index, |
| geo->a[i]. |
| flags & LIBIPW_CH_PASSIVE_ONLY ? |
| IPW_SCAN_PASSIVE_FULL_DWELL_SCAN : |
| scan_type); |
| } |
| |
| if (start != channel_index) { |
| scan->channels_list[start] = (u8) (IPW_A_MODE << 6) | |
| (channel_index - start); |
| channel_index++; |
| } |
| } |
| |
| if (priv->ieee->freq_band & LIBIPW_24GHZ_BAND) { |
| int start = channel_index; |
| if (priv->config & CFG_SPEED_SCAN) { |
| int index; |
| u8 channels[LIBIPW_24GHZ_CHANNELS] = { |
| /* nop out the list */ |
| [0] = 0 |
| }; |
| |
| u8 channel; |
| while (channel_index < IPW_SCAN_CHANNELS - 1) { |
| channel = |
| priv->speed_scan[priv->speed_scan_pos]; |
| if (channel == 0) { |
| priv->speed_scan_pos = 0; |
| channel = priv->speed_scan[0]; |
| } |
| if ((priv->status & STATUS_ASSOCIATED) && |
| channel == priv->channel) { |
| priv->speed_scan_pos++; |
| continue; |
| } |
| |
| /* If this channel has already been |
| * added in scan, break from loop |
| * and this will be the first channel |
| * in the next scan. |
| */ |
| if (channels[channel - 1] != 0) |
| break; |
| |
| channels[channel - 1] = 1; |
| priv->speed_scan_pos++; |
| channel_index++; |
| scan->channels_list[channel_index] = channel; |
| index = |
| libipw_channel_to_index(priv->ieee, channel); |
| ipw_set_scan_type(scan, channel_index, |
| geo->bg[index]. |
| flags & |
| LIBIPW_CH_PASSIVE_ONLY ? |
| IPW_SCAN_PASSIVE_FULL_DWELL_SCAN |
| : scan_type); |
| } |
| } else { |
| for (i = 0; i < geo->bg_channels; i++) { |
| if ((priv->status & STATUS_ASSOCIATED) && |
| geo->bg[i].channel == priv->channel) |
| continue; |
| channel_index++; |
| scan->channels_list[channel_index] = |
| geo->bg[i].channel; |
| ipw_set_scan_type(scan, channel_index, |
| geo->bg[i]. |
| flags & |
| LIBIPW_CH_PASSIVE_ONLY ? |
| IPW_SCAN_PASSIVE_FULL_DWELL_SCAN |
| : scan_type); |
| } |
| } |
| |
| if (start != channel_index) { |
| scan->channels_list[start] = (u8) (IPW_B_MODE << 6) | |
| (channel_index - start); |
| } |
| } |
| } |
| |
| static int ipw_passive_dwell_time(struct ipw_priv *priv) |
| { |
| /* staying on passive channels longer than the DTIM interval during a |
| * scan, while associated, causes the firmware to cancel the scan |
| * without notification. Hence, don't stay on passive channels longer |
| * than the beacon interval. |
| */ |
| if (priv->status & STATUS_ASSOCIATED |
| && priv->assoc_network->beacon_interval > 10) |
| return priv->assoc_network->beacon_interval - 10; |
| else |
| return 120; |
| } |
| |
| static int ipw_request_scan_helper(struct ipw_priv *priv, int type, int direct) |
| { |
| struct ipw_scan_request_ext scan; |
| int err = 0, scan_type; |
| |
| if (!(priv->status & STATUS_INIT) || |
| (priv->status & STATUS_EXIT_PENDING)) |
| return 0; |
| |
| mutex_lock(&priv->mutex); |
| |
| if (direct && (priv->direct_scan_ssid_len == 0)) { |
| IPW_DEBUG_HC("Direct scan requested but no SSID to scan for\n"); |
| priv->status &= ~STATUS_DIRECT_SCAN_PENDING; |
| goto done; |
| } |
| |
| if (priv->status & STATUS_SCANNING) { |
| IPW_DEBUG_HC("Concurrent scan requested. Queuing.\n"); |
| priv->status |= direct ? STATUS_DIRECT_SCAN_PENDING : |
| STATUS_SCAN_PENDING; |
| goto done; |
| } |
| |
| if (!(priv->status & STATUS_SCAN_FORCED) && |
| priv->status & STATUS_SCAN_ABORTING) { |
| IPW_DEBUG_HC("Scan request while abort pending. Queuing.\n"); |
| priv->status |= direct ? STATUS_DIRECT_SCAN_PENDING : |
| STATUS_SCAN_PENDING; |
| goto done; |
| } |
| |
| if (priv->status & STATUS_RF_KILL_MASK) { |
| IPW_DEBUG_HC("Queuing scan due to RF Kill activation\n"); |
| priv->status |= direct ? STATUS_DIRECT_SCAN_PENDING : |
| STATUS_SCAN_PENDING; |
| goto done; |
| } |
| |
| memset(&scan, 0, sizeof(scan)); |
| scan.full_scan_index = cpu_to_le32(libipw_get_scans(priv->ieee)); |
| |
| if (type == IW_SCAN_TYPE_PASSIVE) { |
| IPW_DEBUG_WX("use passive scanning\n"); |
| scan_type = IPW_SCAN_PASSIVE_FULL_DWELL_SCAN; |
| scan.dwell_time[IPW_SCAN_PASSIVE_FULL_DWELL_SCAN] = |
| cpu_to_le16(ipw_passive_dwell_time(priv)); |
| ipw_add_scan_channels(priv, &scan, scan_type); |
| goto send_request; |
| } |
| |
| /* Use active scan by default. */ |
| if (priv->config & CFG_SPEED_SCAN) |
| scan.dwell_time[IPW_SCAN_ACTIVE_BROADCAST_SCAN] = |
| cpu_to_le16(30); |
| else |
| scan.dwell_time[IPW_SCAN_ACTIVE_BROADCAST_SCAN] = |
| cpu_to_le16(20); |
| |
| scan.dwell_time[IPW_SCAN_ACTIVE_BROADCAST_AND_DIRECT_SCAN] = |
| cpu_to_le16(20); |
| |
| scan.dwell_time[IPW_SCAN_PASSIVE_FULL_DWELL_SCAN] = |
| cpu_to_le16(ipw_passive_dwell_time(priv)); |
| scan.dwell_time[IPW_SCAN_ACTIVE_DIRECT_SCAN] = cpu_to_le16(20); |
| |
| #ifdef CONFIG_IPW2200_MONITOR |
| if (priv->ieee->iw_mode == IW_MODE_MONITOR) { |
| u8 channel; |
| u8 band = 0; |
| |
| switch (libipw_is_valid_channel(priv->ieee, priv->channel)) { |
| case LIBIPW_52GHZ_BAND: |
| band = (u8) (IPW_A_MODE << 6) | 1; |
| channel = priv->channel; |
| break; |
| |
| case LIBIPW_24GHZ_BAND: |
| band = (u8) (IPW_B_MODE << 6) | 1; |
| channel = priv->channel; |
| break; |
| |
| default: |
| band = (u8) (IPW_B_MODE << 6) | 1; |
| channel = 9; |
| break; |
| } |
| |
| scan.channels_list[0] = band; |
| scan.channels_list[1] = channel; |
| ipw_set_scan_type(&scan, 1, IPW_SCAN_PASSIVE_FULL_DWELL_SCAN); |
| |
| /* NOTE: The card will sit on this channel for this time |
| * period. Scan aborts are timing sensitive and frequently |
| * result in firmware restarts. As such, it is best to |
| * set a small dwell_time here and just keep re-issuing |
| * scans. Otherwise fast channel hopping will not actually |
| * hop channels. |
| * |
| * TODO: Move SPEED SCAN support to all modes and bands */ |
| scan.dwell_time[IPW_SCAN_PASSIVE_FULL_DWELL_SCAN] = |
| cpu_to_le16(2000); |
| } else { |
| #endif /* CONFIG_IPW2200_MONITOR */ |
| /* Honor direct scans first, otherwise if we are roaming make |
| * this a direct scan for the current network. Finally, |
| * ensure that every other scan is a fast channel hop scan */ |
| if (direct) { |
| err = ipw_send_ssid(priv, priv->direct_scan_ssid, |
| priv->direct_scan_ssid_len); |
| if (err) { |
| IPW_DEBUG_HC("Attempt to send SSID command " |
| "failed\n"); |
| goto done; |
| } |
| |
| scan_type = IPW_SCAN_ACTIVE_BROADCAST_AND_DIRECT_SCAN; |
| } else if ((priv->status & STATUS_ROAMING) |
| || (!(priv->status & STATUS_ASSOCIATED) |
| && (priv->config & CFG_STATIC_ESSID) |
| && (le32_to_cpu(scan.full_scan_index) % 2))) { |
| err = ipw_send_ssid(priv, priv->essid, priv->essid_len); |
| if (err) { |
| IPW_DEBUG_HC("Attempt to send SSID command " |
| "failed.\n"); |
| goto done; |
| } |
| |
| scan_type = IPW_SCAN_ACTIVE_BROADCAST_AND_DIRECT_SCAN; |
| } else |
| scan_type = IPW_SCAN_ACTIVE_BROADCAST_SCAN; |
| |
| ipw_add_scan_channels(priv, &scan, scan_type); |
| #ifdef CONFIG_IPW2200_MONITOR |
| } |
| #endif |
| |
| send_request: |
| err = ipw_send_scan_request_ext(priv, &scan); |
| if (err) { |
| IPW_DEBUG_HC("Sending scan command failed: %08X\n", err); |
| goto done; |
| } |
| |
| priv->status |= STATUS_SCANNING; |
| if (direct) { |
| priv->status &= ~STATUS_DIRECT_SCAN_PENDING; |
| priv->direct_scan_ssid_len = 0; |
| } else |
| priv->status &= ~STATUS_SCAN_PENDING; |
| |
| schedule_delayed_work(&priv->scan_check, IPW_SCAN_CHECK_WATCHDOG); |
| done: |
| mutex_unlock(&priv->mutex); |
| return err; |
| } |
| |
| static void ipw_request_passive_scan(struct work_struct *work) |
| { |
| struct ipw_priv *priv = |
| container_of(work, struct ipw_priv, request_passive_scan.work); |
| ipw_request_scan_helper(priv, IW_SCAN_TYPE_PASSIVE, 0); |
| } |
| |
| static void ipw_request_scan(struct work_struct *work) |
| { |
| struct ipw_priv *priv = |
| container_of(work, struct ipw_priv, request_scan.work); |
| ipw_request_scan_helper(priv, IW_SCAN_TYPE_ACTIVE, 0); |
| } |
| |
| static void ipw_request_direct_scan(struct work_struct *work) |
| { |
| struct ipw_priv *priv = |
| container_of(work, struct ipw_priv, request_direct_scan.work); |
| ipw_request_scan_helper(priv, IW_SCAN_TYPE_ACTIVE, 1); |
| } |
| |
| static void ipw_bg_abort_scan(struct work_struct *work) |
| { |
| struct ipw_priv *priv = |
| container_of(work, struct ipw_priv, abort_scan); |
| mutex_lock(&priv->mutex); |
| ipw_abort_scan(priv); |
| mutex_unlock(&priv->mutex); |
| } |
| |
| static int ipw_wpa_enable(struct ipw_priv *priv, int value) |
| { |
| /* This is called when wpa_supplicant loads and closes the driver |
| * interface. */ |
| priv->ieee->wpa_enabled = value; |
| return 0; |
| } |
| |
| static int ipw_wpa_set_auth_algs(struct ipw_priv *priv, int value) |
| { |
| struct libipw_device *ieee = priv->ieee; |
| struct libipw_security sec = { |
| .flags = SEC_AUTH_MODE, |
| }; |
| int ret = 0; |
| |
| if (value & IW_AUTH_ALG_SHARED_KEY) { |
| sec.auth_mode = WLAN_AUTH_SHARED_KEY; |
| ieee->open_wep = 0; |
| } else if (value & IW_AUTH_ALG_OPEN_SYSTEM) { |
| sec.auth_mode = WLAN_AUTH_OPEN; |
| ieee->open_wep = 1; |
| } else if (value & IW_AUTH_ALG_LEAP) { |
| sec.auth_mode = WLAN_AUTH_LEAP; |
| ieee->open_wep = 1; |
| } else |
| return -EINVAL; |
| |
| if (ieee->set_security) |
| ieee->set_security(ieee->dev, &sec); |
| else |
| ret = -EOPNOTSUPP; |
| |
| return ret; |
| } |
| |
| static void ipw_wpa_assoc_frame(struct ipw_priv *priv, char *wpa_ie, |
| int wpa_ie_len) |
| { |
| /* make sure WPA is enabled */ |
| ipw_wpa_enable(priv, 1); |
| } |
| |
| static int ipw_set_rsn_capa(struct ipw_priv *priv, |
| char *capabilities, int length) |
| { |
| IPW_DEBUG_HC("HOST_CMD_RSN_CAPABILITIES\n"); |
| |
| return ipw_send_cmd_pdu(priv, IPW_CMD_RSN_CAPABILITIES, length, |
| capabilities); |
| } |
| |
| /* |
| * WE-18 support |
| */ |
| |
| /* SIOCSIWGENIE */ |
| static int ipw_wx_set_genie(struct net_device *dev, |
| struct iw_request_info *info, |
| union iwreq_data *wrqu, char *extra) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| struct libipw_device *ieee = priv->ieee; |
| u8 *buf; |
| int err = 0; |
| |
| if (wrqu->data.length > MAX_WPA_IE_LEN || |
| (wrqu->data.length && extra == NULL)) |
| return -EINVAL; |
| |
| if (wrqu->data.length) { |
| buf = kmemdup(extra, wrqu->data.length, GFP_KERNEL); |
| if (buf == NULL) { |
| err = -ENOMEM; |
| goto out; |
| } |
| |
| kfree(ieee->wpa_ie); |
| ieee->wpa_ie = buf; |
| ieee->wpa_ie_len = wrqu->data.length; |
| } else { |
| kfree(ieee->wpa_ie); |
| ieee->wpa_ie = NULL; |
| ieee->wpa_ie_len = 0; |
| } |
| |
| ipw_wpa_assoc_frame(priv, ieee->wpa_ie, ieee->wpa_ie_len); |
| out: |
| return err; |
| } |
| |
| /* SIOCGIWGENIE */ |
| static int ipw_wx_get_genie(struct net_device *dev, |
| struct iw_request_info *info, |
| union iwreq_data *wrqu, char *extra) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| struct libipw_device *ieee = priv->ieee; |
| int err = 0; |
| |
| if (ieee->wpa_ie_len == 0 || ieee->wpa_ie == NULL) { |
| wrqu->data.length = 0; |
| goto out; |
| } |
| |
| if (wrqu->data.length < ieee->wpa_ie_len) { |
| err = -E2BIG; |
| goto out; |
| } |
| |
| wrqu->data.length = ieee->wpa_ie_len; |
| memcpy(extra, ieee->wpa_ie, ieee->wpa_ie_len); |
| |
| out: |
| return err; |
| } |
| |
| static int wext_cipher2level(int cipher) |
| { |
| switch (cipher) { |
| case IW_AUTH_CIPHER_NONE: |
| return SEC_LEVEL_0; |
| case IW_AUTH_CIPHER_WEP40: |
| case IW_AUTH_CIPHER_WEP104: |
| return SEC_LEVEL_1; |
| case IW_AUTH_CIPHER_TKIP: |
| return SEC_LEVEL_2; |
| case IW_AUTH_CIPHER_CCMP: |
| return SEC_LEVEL_3; |
| default: |
| return -1; |
| } |
| } |
| |
| /* SIOCSIWAUTH */ |
| static int ipw_wx_set_auth(struct net_device *dev, |
| struct iw_request_info *info, |
| union iwreq_data *wrqu, char *extra) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| struct libipw_device *ieee = priv->ieee; |
| struct iw_param *param = &wrqu->param; |
| struct lib80211_crypt_data *crypt; |
| unsigned long flags; |
| int ret = 0; |
| |
| switch (param->flags & IW_AUTH_INDEX) { |
| case IW_AUTH_WPA_VERSION: |
| break; |
| case IW_AUTH_CIPHER_PAIRWISE: |
| ipw_set_hw_decrypt_unicast(priv, |
| wext_cipher2level(param->value)); |
| break; |
| case IW_AUTH_CIPHER_GROUP: |
| ipw_set_hw_decrypt_multicast(priv, |
| wext_cipher2level(param->value)); |
| break; |
| case IW_AUTH_KEY_MGMT: |
| /* |
| * ipw2200 does not use these parameters |
| */ |
| break; |
| |
| case IW_AUTH_TKIP_COUNTERMEASURES: |
| crypt = priv->ieee->crypt_info.crypt[priv->ieee->crypt_info.tx_keyidx]; |
| if (!crypt || !crypt->ops->set_flags || !crypt->ops->get_flags) |
| break; |
| |
| flags = crypt->ops->get_flags(crypt->priv); |
| |
| if (param->value) |
| flags |= IEEE80211_CRYPTO_TKIP_COUNTERMEASURES; |
| else |
| flags &= ~IEEE80211_CRYPTO_TKIP_COUNTERMEASURES; |
| |
| crypt->ops->set_flags(flags, crypt->priv); |
| |
| break; |
| |
| case IW_AUTH_DROP_UNENCRYPTED:{ |
| /* HACK: |
| * |
| * wpa_supplicant calls set_wpa_enabled when the driver |
| * is loaded and unloaded, regardless of if WPA is being |
| * used. No other calls are made which can be used to |
| * determine if encryption will be used or not prior to |
| * association being expected. If encryption is not being |
| * used, drop_unencrypted is set to false, else true -- we |
| * can use this to determine if the CAP_PRIVACY_ON bit should |
| * be set. |
| */ |
| struct libipw_security sec = { |
| .flags = SEC_ENABLED, |
| .enabled = param->value, |
| }; |
| priv->ieee->drop_unencrypted = param->value; |
| /* We only change SEC_LEVEL for open mode. Others |
| * are set by ipw_wpa_set_encryption. |
| */ |
| if (!param->value) { |
| sec.flags |= SEC_LEVEL; |
| sec.level = SEC_LEVEL_0; |
| } else { |
| sec.flags |= SEC_LEVEL; |
| sec.level = SEC_LEVEL_1; |
| } |
| if (priv->ieee->set_security) |
| priv->ieee->set_security(priv->ieee->dev, &sec); |
| break; |
| } |
| |
| case IW_AUTH_80211_AUTH_ALG: |
| ret = ipw_wpa_set_auth_algs(priv, param->value); |
| break; |
| |
| case IW_AUTH_WPA_ENABLED: |
| ret = ipw_wpa_enable(priv, param->value); |
| ipw_disassociate(priv); |
| break; |
| |
| case IW_AUTH_RX_UNENCRYPTED_EAPOL: |
| ieee->ieee802_1x = param->value; |
| break; |
| |
| case IW_AUTH_PRIVACY_INVOKED: |
| ieee->privacy_invoked = param->value; |
| break; |
| |
| default: |
| return -EOPNOTSUPP; |
| } |
| return ret; |
| } |
| |
| /* SIOCGIWAUTH */ |
| static int ipw_wx_get_auth(struct net_device *dev, |
| struct iw_request_info *info, |
| union iwreq_data *wrqu, char *extra) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| struct libipw_device *ieee = priv->ieee; |
| struct lib80211_crypt_data *crypt; |
| struct iw_param *param = &wrqu->param; |
| |
| switch (param->flags & IW_AUTH_INDEX) { |
| case IW_AUTH_WPA_VERSION: |
| case IW_AUTH_CIPHER_PAIRWISE: |
| case IW_AUTH_CIPHER_GROUP: |
| case IW_AUTH_KEY_MGMT: |
| /* |
| * wpa_supplicant will control these internally |
| */ |
| return -EOPNOTSUPP; |
| |
| case IW_AUTH_TKIP_COUNTERMEASURES: |
| crypt = priv->ieee->crypt_info.crypt[priv->ieee->crypt_info.tx_keyidx]; |
| if (!crypt || !crypt->ops->get_flags) |
| break; |
| |
| param->value = (crypt->ops->get_flags(crypt->priv) & |
| IEEE80211_CRYPTO_TKIP_COUNTERMEASURES) ? 1 : 0; |
| |
| break; |
| |
| case IW_AUTH_DROP_UNENCRYPTED: |
| param->value = ieee->drop_unencrypted; |
| break; |
| |
| case IW_AUTH_80211_AUTH_ALG: |
| param->value = ieee->sec.auth_mode; |
| break; |
| |
| case IW_AUTH_WPA_ENABLED: |
| param->value = ieee->wpa_enabled; |
| break; |
| |
| case IW_AUTH_RX_UNENCRYPTED_EAPOL: |
| param->value = ieee->ieee802_1x; |
| break; |
| |
| case IW_AUTH_ROAMING_CONTROL: |
| case IW_AUTH_PRIVACY_INVOKED: |
| param->value = ieee->privacy_invoked; |
| break; |
| |
| default: |
| return -EOPNOTSUPP; |
| } |
| return 0; |
| } |
| |
| /* SIOCSIWENCODEEXT */ |
| static int ipw_wx_set_encodeext(struct net_device *dev, |
| struct iw_request_info *info, |
| union iwreq_data *wrqu, char *extra) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| struct iw_encode_ext *ext = (struct iw_encode_ext *)extra; |
| |
| if (hwcrypto) { |
| if (ext->alg == IW_ENCODE_ALG_TKIP) { |
| /* IPW HW can't build TKIP MIC, |
| host decryption still needed */ |
| if (ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY) |
| priv->ieee->host_mc_decrypt = 1; |
| else { |
| priv->ieee->host_encrypt = 0; |
| priv->ieee->host_encrypt_msdu = 1; |
| priv->ieee->host_decrypt = 1; |
| } |
| } else { |
| priv->ieee->host_encrypt = 0; |
| priv->ieee->host_encrypt_msdu = 0; |
| priv->ieee->host_decrypt = 0; |
| priv->ieee->host_mc_decrypt = 0; |
| } |
| } |
| |
| return libipw_wx_set_encodeext(priv->ieee, info, wrqu, extra); |
| } |
| |
| /* SIOCGIWENCODEEXT */ |
| static int ipw_wx_get_encodeext(struct net_device *dev, |
| struct iw_request_info *info, |
| union iwreq_data *wrqu, char *extra) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| return libipw_wx_get_encodeext(priv->ieee, info, wrqu, extra); |
| } |
| |
| /* SIOCSIWMLME */ |
| static int ipw_wx_set_mlme(struct net_device *dev, |
| struct iw_request_info *info, |
| union iwreq_data *wrqu, char *extra) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| struct iw_mlme *mlme = (struct iw_mlme *)extra; |
| __le16 reason; |
| |
| reason = cpu_to_le16(mlme->reason_code); |
| |
| switch (mlme->cmd) { |
| case IW_MLME_DEAUTH: |
| /* silently ignore */ |
| break; |
| |
| case IW_MLME_DISASSOC: |
| ipw_disassociate(priv); |
| break; |
| |
| default: |
| return -EOPNOTSUPP; |
| } |
| return 0; |
| } |
| |
| #ifdef CONFIG_IPW2200_QOS |
| |
| /* QoS */ |
| /* |
| * get the modulation type of the current network or |
| * the card current mode |
| */ |
| static u8 ipw_qos_current_mode(struct ipw_priv * priv) |
| { |
| u8 mode = 0; |
| |
| if (priv->status & STATUS_ASSOCIATED) { |
| unsigned long flags; |
| |
| spin_lock_irqsave(&priv->ieee->lock, flags); |
| mode = priv->assoc_network->mode; |
| spin_unlock_irqrestore(&priv->ieee->lock, flags); |
| } else { |
| mode = priv->ieee->mode; |
| } |
| IPW_DEBUG_QOS("QoS network/card mode %d\n", mode); |
| return mode; |
| } |
| |
| /* |
| * Handle management frame beacon and probe response |
| */ |
| static int ipw_qos_handle_probe_response(struct ipw_priv *priv, |
| int active_network, |
| struct libipw_network *network) |
| { |
| u32 size = sizeof(struct libipw_qos_parameters); |
| |
| if (network->capability & WLAN_CAPABILITY_IBSS) |
| network->qos_data.active = network->qos_data.supported; |
| |
| if (network->flags & NETWORK_HAS_QOS_MASK) { |
| if (active_network && |
| (network->flags & NETWORK_HAS_QOS_PARAMETERS)) |
| network->qos_data.active = network->qos_data.supported; |
| |
| if ((network->qos_data.active == 1) && (active_network == 1) && |
| (network->flags & NETWORK_HAS_QOS_PARAMETERS) && |
| (network->qos_data.old_param_count != |
| network->qos_data.param_count)) { |
| network->qos_data.old_param_count = |
| network->qos_data.param_count; |
| schedule_work(&priv->qos_activate); |
| IPW_DEBUG_QOS("QoS parameters change call " |
| "qos_activate\n"); |
| } |
| } else { |
| if ((priv->ieee->mode == IEEE_B) || (network->mode == IEEE_B)) |
| memcpy(&network->qos_data.parameters, |
| &def_parameters_CCK, size); |
| else |
| memcpy(&network->qos_data.parameters, |
| &def_parameters_OFDM, size); |
| |
| if ((network->qos_data.active == 1) && (active_network == 1)) { |
| IPW_DEBUG_QOS("QoS was disabled call qos_activate\n"); |
| schedule_work(&priv->qos_activate); |
| } |
| |
| network->qos_data.active = 0; |
| network->qos_data.supported = 0; |
| } |
| if ((priv->status & STATUS_ASSOCIATED) && |
| (priv->ieee->iw_mode == IW_MODE_ADHOC) && (active_network == 0)) { |
| if (!ether_addr_equal(network->bssid, priv->bssid)) |
| if (network->capability & WLAN_CAPABILITY_IBSS) |
| if ((network->ssid_len == |
| priv->assoc_network->ssid_len) && |
| !memcmp(network->ssid, |
| priv->assoc_network->ssid, |
| network->ssid_len)) { |
| schedule_work(&priv->merge_networks); |
| } |
| } |
| |
| return 0; |
| } |
| |
| /* |
| * This function set up the firmware to support QoS. It sends |
| * IPW_CMD_QOS_PARAMETERS and IPW_CMD_WME_INFO |
| */ |
| static int ipw_qos_activate(struct ipw_priv *priv, |
| struct libipw_qos_data *qos_network_data) |
| { |
| int err; |
| struct libipw_qos_parameters qos_parameters[QOS_QOS_SETS]; |
| struct libipw_qos_parameters *active_one = NULL; |
| u32 size = sizeof(struct libipw_qos_parameters); |
| u32 burst_duration; |
| int i; |
| u8 type; |
| |
| type = ipw_qos_current_mode(priv); |
| |
| active_one = &(qos_parameters[QOS_PARAM_SET_DEF_CCK]); |
| memcpy(active_one, priv->qos_data.def_qos_parm_CCK, size); |
| active_one = &(qos_parameters[QOS_PARAM_SET_DEF_OFDM]); |
| memcpy(active_one, priv->qos_data.def_qos_parm_OFDM, size); |
| |
| if (qos_network_data == NULL) { |
| if (type == IEEE_B) { |
| IPW_DEBUG_QOS("QoS activate network mode %d\n", type); |
| active_one = &def_parameters_CCK; |
| } else |
| active_one = &def_parameters_OFDM; |
| |
| memcpy(&qos_parameters[QOS_PARAM_SET_ACTIVE], active_one, size); |
| burst_duration = ipw_qos_get_burst_duration(priv); |
| for (i = 0; i < QOS_QUEUE_NUM; i++) |
| qos_parameters[QOS_PARAM_SET_ACTIVE].tx_op_limit[i] = |
| cpu_to_le16(burst_duration); |
| } else if (priv->ieee->iw_mode == IW_MODE_ADHOC) { |
| if (type == IEEE_B) { |
| IPW_DEBUG_QOS("QoS activate IBSS network mode %d\n", |
| type); |
| if (priv->qos_data.qos_enable == 0) |
| active_one = &def_parameters_CCK; |
| else |
| active_one = priv->qos_data.def_qos_parm_CCK; |
| } else { |
| if (priv->qos_data.qos_enable == 0) |
| active_one = &def_parameters_OFDM; |
| else |
| active_one = priv->qos_data.def_qos_parm_OFDM; |
| } |
| memcpy(&qos_parameters[QOS_PARAM_SET_ACTIVE], active_one, size); |
| } else { |
| unsigned long flags; |
| int active; |
| |
| spin_lock_irqsave(&priv->ieee->lock, flags); |
| active_one = &(qos_network_data->parameters); |
| qos_network_data->old_param_count = |
| qos_network_data->param_count; |
| memcpy(&qos_parameters[QOS_PARAM_SET_ACTIVE], active_one, size); |
| active = qos_network_data->supported; |
| spin_unlock_irqrestore(&priv->ieee->lock, flags); |
| |
| if (active == 0) { |
| burst_duration = ipw_qos_get_burst_duration(priv); |
| for (i = 0; i < QOS_QUEUE_NUM; i++) |
| qos_parameters[QOS_PARAM_SET_ACTIVE]. |
| tx_op_limit[i] = cpu_to_le16(burst_duration); |
| } |
| } |
| |
| IPW_DEBUG_QOS("QoS sending IPW_CMD_QOS_PARAMETERS\n"); |
| err = ipw_send_qos_params_command(priv, &qos_parameters[0]); |
| if (err) |
| IPW_DEBUG_QOS("QoS IPW_CMD_QOS_PARAMETERS failed\n"); |
| |
| return err; |
| } |
| |
| /* |
| * send IPW_CMD_WME_INFO to the firmware |
| */ |
| static int ipw_qos_set_info_element(struct ipw_priv *priv) |
| { |
| int ret = 0; |
| struct libipw_qos_information_element qos_info; |
| |
| if (priv == NULL) |
| return -1; |
| |
| qos_info.elementID = QOS_ELEMENT_ID; |
| qos_info.length = sizeof(struct libipw_qos_information_element) - 2; |
| |
| qos_info.version = QOS_VERSION_1; |
| qos_info.ac_info = 0; |
| |
| memcpy(qos_info.qui, qos_oui, QOS_OUI_LEN); |
| qos_info.qui_type = QOS_OUI_TYPE; |
| qos_info.qui_subtype = QOS_OUI_INFO_SUB_TYPE; |
| |
| ret = ipw_send_qos_info_command(priv, &qos_info); |
| if (ret != 0) { |
| IPW_DEBUG_QOS("QoS error calling ipw_send_qos_info_command\n"); |
| } |
| return ret; |
| } |
| |
| /* |
| * Set the QoS parameter with the association request structure |
| */ |
| static int ipw_qos_association(struct ipw_priv *priv, |
| struct libipw_network *network) |
| { |
| int err = 0; |
| struct libipw_qos_data *qos_data = NULL; |
| struct libipw_qos_data ibss_data = { |
| .supported = 1, |
| .active = 1, |
| }; |
| |
| switch (priv->ieee->iw_mode) { |
| case IW_MODE_ADHOC: |
| BUG_ON(!(network->capability & WLAN_CAPABILITY_IBSS)); |
| |
| qos_data = &ibss_data; |
| break; |
| |
| case IW_MODE_INFRA: |
| qos_data = &network->qos_data; |
| break; |
| |
| default: |
| BUG(); |
| break; |
| } |
| |
| err = ipw_qos_activate(priv, qos_data); |
| if (err) { |
| priv->assoc_request.policy_support &= ~HC_QOS_SUPPORT_ASSOC; |
| return err; |
| } |
| |
| if (priv->qos_data.qos_enable && qos_data->supported) { |
| IPW_DEBUG_QOS("QoS will be enabled for this association\n"); |
| priv->assoc_request.policy_support |= HC_QOS_SUPPORT_ASSOC; |
| return ipw_qos_set_info_element(priv); |
| } |
| |
| return 0; |
| } |
| |
| /* |
| * handling the beaconing responses. if we get different QoS setting |
| * off the network from the associated setting, adjust the QoS |
| * setting |
| */ |
| static int ipw_qos_association_resp(struct ipw_priv *priv, |
| struct libipw_network *network) |
| { |
| int ret = 0; |
| unsigned long flags; |
| u32 size = sizeof(struct libipw_qos_parameters); |
| int set_qos_param = 0; |
| |
| if ((priv == NULL) || (network == NULL) || |
| (priv->assoc_network == NULL)) |
| return ret; |
| |
| if (!(priv->status & STATUS_ASSOCIATED)) |
| return ret; |
| |
| if ((priv->ieee->iw_mode != IW_MODE_INFRA)) |
| return ret; |
| |
| spin_lock_irqsave(&priv->ieee->lock, flags); |
| if (network->flags & NETWORK_HAS_QOS_PARAMETERS) { |
| memcpy(&priv->assoc_network->qos_data, &network->qos_data, |
| sizeof(struct libipw_qos_data)); |
| priv->assoc_network->qos_data.active = 1; |
| if ((network->qos_data.old_param_count != |
| network->qos_data.param_count)) { |
| set_qos_param = 1; |
| network->qos_data.old_param_count = |
| network->qos_data.param_count; |
| } |
| |
| } else { |
| if ((network->mode == IEEE_B) || (priv->ieee->mode == IEEE_B)) |
| memcpy(&priv->assoc_network->qos_data.parameters, |
| &def_parameters_CCK, size); |
| else |
| memcpy(&priv->assoc_network->qos_data.parameters, |
| &def_parameters_OFDM, size); |
| priv->assoc_network->qos_data.active = 0; |
| priv->assoc_network->qos_data.supported = 0; |
| set_qos_param = 1; |
| } |
| |
| spin_unlock_irqrestore(&priv->ieee->lock, flags); |
| |
| if (set_qos_param == 1) |
| schedule_work(&priv->qos_activate); |
| |
| return ret; |
| } |
| |
| static u32 ipw_qos_get_burst_duration(struct ipw_priv *priv) |
| { |
| u32 ret = 0; |
| |
| if (!priv) |
| return 0; |
| |
| if (!(priv->ieee->modulation & LIBIPW_OFDM_MODULATION)) |
| ret = priv->qos_data.burst_duration_CCK; |
| else |
| ret = priv->qos_data.burst_duration_OFDM; |
| |
| return ret; |
| } |
| |
| /* |
| * Initialize the setting of QoS global |
| */ |
| static void ipw_qos_init(struct ipw_priv *priv, int enable, |
| int burst_enable, u32 burst_duration_CCK, |
| u32 burst_duration_OFDM) |
| { |
| priv->qos_data.qos_enable = enable; |
| |
| if (priv->qos_data.qos_enable) { |
| priv->qos_data.def_qos_parm_CCK = &def_qos_parameters_CCK; |
| priv->qos_data.def_qos_parm_OFDM = &def_qos_parameters_OFDM; |
| IPW_DEBUG_QOS("QoS is enabled\n"); |
| } else { |
| priv->qos_data.def_qos_parm_CCK = &def_parameters_CCK; |
| priv->qos_data.def_qos_parm_OFDM = &def_parameters_OFDM; |
| IPW_DEBUG_QOS("QoS is not enabled\n"); |
| } |
| |
| priv->qos_data.burst_enable = burst_enable; |
| |
| if (burst_enable) { |
| priv->qos_data.burst_duration_CCK = burst_duration_CCK; |
| priv->qos_data.burst_duration_OFDM = burst_duration_OFDM; |
| } else { |
| priv->qos_data.burst_duration_CCK = 0; |
| priv->qos_data.burst_duration_OFDM = 0; |
| } |
| } |
| |
| /* |
| * map the packet priority to the right TX Queue |
| */ |
| static int ipw_get_tx_queue_number(struct ipw_priv *priv, u16 priority) |
| { |
| if (priority > 7 || !priv->qos_data.qos_enable) |
| priority = 0; |
| |
| return from_priority_to_tx_queue[priority] - 1; |
| } |
| |
| static int ipw_is_qos_active(struct net_device *dev, |
| struct sk_buff *skb) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| struct libipw_qos_data *qos_data = NULL; |
| int active, supported; |
| u8 *daddr = skb->data + ETH_ALEN; |
| int unicast = !is_multicast_ether_addr(daddr); |
| |
| if (!(priv->status & STATUS_ASSOCIATED)) |
| return 0; |
| |
| qos_data = &priv->assoc_network->qos_data; |
| |
| if (priv->ieee->iw_mode == IW_MODE_ADHOC) { |
| if (unicast == 0) |
| qos_data->active = 0; |
| else |
| qos_data->active = qos_data->supported; |
| } |
| active = qos_data->active; |
| supported = qos_data->supported; |
| IPW_DEBUG_QOS("QoS %d network is QoS active %d supported %d " |
| "unicast %d\n", |
| priv->qos_data.qos_enable, active, supported, unicast); |
| if (active && priv->qos_data.qos_enable) |
| return 1; |
| |
| return 0; |
| |
| } |
| /* |
| * add QoS parameter to the TX command |
| */ |
| static int ipw_qos_set_tx_queue_command(struct ipw_priv *priv, |
| u16 priority, |
| struct tfd_data *tfd) |
| { |
| int tx_queue_id = 0; |
| |
| |
| tx_queue_id = from_priority_to_tx_queue[priority] - 1; |
| tfd->tx_flags_ext |= DCT_FLAG_EXT_QOS_ENABLED; |
| |
| if (priv->qos_data.qos_no_ack_mask & (1UL << tx_queue_id)) { |
| tfd->tx_flags &= ~DCT_FLAG_ACK_REQD; |
| tfd->tfd.tfd_26.mchdr.qos_ctrl |= cpu_to_le16(CTRL_QOS_NO_ACK); |
| } |
| return 0; |
| } |
| |
| /* |
| * background support to run QoS activate functionality |
| */ |
| static void ipw_bg_qos_activate(struct work_struct *work) |
| { |
| struct ipw_priv *priv = |
| container_of(work, struct ipw_priv, qos_activate); |
| |
| mutex_lock(&priv->mutex); |
| |
| if (priv->status & STATUS_ASSOCIATED) |
| ipw_qos_activate(priv, &(priv->assoc_network->qos_data)); |
| |
| mutex_unlock(&priv->mutex); |
| } |
| |
| static int ipw_handle_probe_response(struct net_device *dev, |
| struct libipw_probe_response *resp, |
| struct libipw_network *network) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| int active_network = ((priv->status & STATUS_ASSOCIATED) && |
| (network == priv->assoc_network)); |
| |
| ipw_qos_handle_probe_response(priv, active_network, network); |
| |
| return 0; |
| } |
| |
| static int ipw_handle_beacon(struct net_device *dev, |
| struct libipw_beacon *resp, |
| struct libipw_network *network) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| int active_network = ((priv->status & STATUS_ASSOCIATED) && |
| (network == priv->assoc_network)); |
| |
| ipw_qos_handle_probe_response(priv, active_network, network); |
| |
| return 0; |
| } |
| |
| static int ipw_handle_assoc_response(struct net_device *dev, |
| struct libipw_assoc_response *resp, |
| struct libipw_network *network) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| ipw_qos_association_resp(priv, network); |
| return 0; |
| } |
| |
| static int ipw_send_qos_params_command(struct ipw_priv *priv, struct libipw_qos_parameters |
| *qos_param) |
| { |
| return ipw_send_cmd_pdu(priv, IPW_CMD_QOS_PARAMETERS, |
| sizeof(*qos_param) * 3, qos_param); |
| } |
| |
| static int ipw_send_qos_info_command(struct ipw_priv *priv, struct libipw_qos_information_element |
| *qos_param) |
| { |
| return ipw_send_cmd_pdu(priv, IPW_CMD_WME_INFO, sizeof(*qos_param), |
| qos_param); |
| } |
| |
| #endif /* CONFIG_IPW2200_QOS */ |
| |
| static int ipw_associate_network(struct ipw_priv *priv, |
| struct libipw_network *network, |
| struct ipw_supported_rates *rates, int roaming) |
| { |
| int err; |
| |
| if (priv->config & CFG_FIXED_RATE) |
| ipw_set_fixed_rate(priv, network->mode); |
| |
| if (!(priv->config & CFG_STATIC_ESSID)) { |
| priv->essid_len = min(network->ssid_len, |
| (u8) IW_ESSID_MAX_SIZE); |
| memcpy(priv->essid, network->ssid, priv->essid_len); |
| } |
| |
| network->last_associate = jiffies; |
| |
| memset(&priv->assoc_request, 0, sizeof(priv->assoc_request)); |
| priv->assoc_request.channel = network->channel; |
| priv->assoc_request.auth_key = 0; |
| |
| if ((priv->capability & CAP_PRIVACY_ON) && |
| (priv->ieee->sec.auth_mode == WLAN_AUTH_SHARED_KEY)) { |
| priv->assoc_request.auth_type = AUTH_SHARED_KEY; |
| priv->assoc_request.auth_key = priv->ieee->sec.active_key; |
| |
| if (priv->ieee->sec.level == SEC_LEVEL_1) |
| ipw_send_wep_keys(priv, DCW_WEP_KEY_SEC_TYPE_WEP); |
| |
| } else if ((priv->capability & CAP_PRIVACY_ON) && |
| (priv->ieee->sec.auth_mode == WLAN_AUTH_LEAP)) |
| priv->assoc_request.auth_type = AUTH_LEAP; |
| else |
| priv->assoc_request.auth_type = AUTH_OPEN; |
| |
| if (priv->ieee->wpa_ie_len) { |
| priv->assoc_request.policy_support = cpu_to_le16(0x02); /* RSN active */ |
| ipw_set_rsn_capa(priv, priv->ieee->wpa_ie, |
| priv->ieee->wpa_ie_len); |
| } |
| |
| /* |
| * It is valid for our ieee device to support multiple modes, but |
| * when it comes to associating to a given network we have to choose |
| * just one mode. |
| */ |
| if (network->mode & priv->ieee->mode & IEEE_A) |
| priv->assoc_request.ieee_mode = IPW_A_MODE; |
| else if (network->mode & priv->ieee->mode & IEEE_G) |
| priv->assoc_request.ieee_mode = IPW_G_MODE; |
| else if (network->mode & priv->ieee->mode & IEEE_B) |
| priv->assoc_request.ieee_mode = IPW_B_MODE; |
| |
| priv->assoc_request.capability = cpu_to_le16(network->capability); |
| if ((network->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) |
| && !(priv->config & CFG_PREAMBLE_LONG)) { |
| priv->assoc_request.preamble_length = DCT_FLAG_SHORT_PREAMBLE; |
| } else { |
| priv->assoc_request.preamble_length = DCT_FLAG_LONG_PREAMBLE; |
| |
| /* Clear the short preamble if we won't be supporting it */ |
| priv->assoc_request.capability &= |
| ~cpu_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE); |
| } |
| |
| /* Clear capability bits that aren't used in Ad Hoc */ |
| if (priv->ieee->iw_mode == IW_MODE_ADHOC) |
| priv->assoc_request.capability &= |
| ~cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT_TIME); |
| |
| IPW_DEBUG_ASSOC("%ssociation attempt: '%*pE', channel %d, 802.11%c [%d], %s[:%s], enc=%s%s%s%c%c\n", |
| roaming ? "Rea" : "A", |
| priv->essid_len, priv->essid, |
| network->channel, |
| ipw_modes[priv->assoc_request.ieee_mode], |
| rates->num_rates, |
| (priv->assoc_request.preamble_length == |
| DCT_FLAG_LONG_PREAMBLE) ? "long" : "short", |
| network->capability & |
| WLAN_CAPABILITY_SHORT_PREAMBLE ? "short" : "long", |
| priv->capability & CAP_PRIVACY_ON ? "on " : "off", |
| priv->capability & CAP_PRIVACY_ON ? |
| (priv->capability & CAP_SHARED_KEY ? "(shared)" : |
| "(open)") : "", |
| priv->capability & CAP_PRIVACY_ON ? " key=" : "", |
| priv->capability & CAP_PRIVACY_ON ? |
| '1' + priv->ieee->sec.active_key : '.', |
| priv->capability & CAP_PRIVACY_ON ? '.' : ' '); |
| |
| priv->assoc_request.beacon_interval = cpu_to_le16(network->beacon_interval); |
| if ((priv->ieee->iw_mode == IW_MODE_ADHOC) && |
| (network->time_stamp[0] == 0) && (network->time_stamp[1] == 0)) { |
| priv->assoc_request.assoc_type = HC_IBSS_START; |
| priv->assoc_request.assoc_tsf_msw = 0; |
| priv->assoc_request.assoc_tsf_lsw = 0; |
| } else { |
| if (unlikely(roaming)) |
| priv->assoc_request.assoc_type = HC_REASSOCIATE; |
| else |
| priv->assoc_request.assoc_type = HC_ASSOCIATE; |
| priv->assoc_request.assoc_tsf_msw = cpu_to_le32(network->time_stamp[1]); |
| priv->assoc_request.assoc_tsf_lsw = cpu_to_le32(network->time_stamp[0]); |
| } |
| |
| memcpy(priv->assoc_request.bssid, network->bssid, ETH_ALEN); |
| |
| if (priv->ieee->iw_mode == IW_MODE_ADHOC) { |
| eth_broadcast_addr(priv->assoc_request.dest); |
| priv->assoc_request.atim_window = cpu_to_le16(network->atim_window); |
| } else { |
| memcpy(priv->assoc_request.dest, network->bssid, ETH_ALEN); |
| priv->assoc_request.atim_window = 0; |
| } |
| |
| priv->assoc_request.listen_interval = cpu_to_le16(network->listen_interval); |
| |
| err = ipw_send_ssid(priv, priv->essid, priv->essid_len); |
| if (err) { |
| IPW_DEBUG_HC("Attempt to send SSID command failed.\n"); |
| return err; |
| } |
| |
| rates->ieee_mode = priv->assoc_request.ieee_mode; |
| rates->purpose = IPW_RATE_CONNECT; |
| ipw_send_supported_rates(priv, rates); |
| |
| if (priv->assoc_request.ieee_mode == IPW_G_MODE) |
| priv->sys_config.dot11g_auto_detection = 1; |
| else |
| priv->sys_config.dot11g_auto_detection = 0; |
| |
| if (priv->ieee->iw_mode == IW_MODE_ADHOC) |
| priv->sys_config.answer_broadcast_ssid_probe = 1; |
| else |
| priv->sys_config.answer_broadcast_ssid_probe = 0; |
| |
| err = ipw_send_system_config(priv); |
| if (err) { |
| IPW_DEBUG_HC("Attempt to send sys config command failed.\n"); |
| return err; |
| } |
| |
| IPW_DEBUG_ASSOC("Association sensitivity: %d\n", network->stats.rssi); |
| err = ipw_set_sensitivity(priv, network->stats.rssi + IPW_RSSI_TO_DBM); |
| if (err) { |
| IPW_DEBUG_HC("Attempt to send associate command failed.\n"); |
| return err; |
| } |
| |
| /* |
| * If preemption is enabled, it is possible for the association |
| * to complete before we return from ipw_send_associate. Therefore |
| * we have to be sure and update our priviate data first. |
| */ |
| priv->channel = network->channel; |
| memcpy(priv->bssid, network->bssid, ETH_ALEN); |
| priv->status |= STATUS_ASSOCIATING; |
| priv->status &= ~STATUS_SECURITY_UPDATED; |
| |
| priv->assoc_network = network; |
| |
| #ifdef CONFIG_IPW2200_QOS |
| ipw_qos_association(priv, network); |
| #endif |
| |
| err = ipw_send_associate(priv, &priv->assoc_request); |
| if (err) { |
| IPW_DEBUG_HC("Attempt to send associate command failed.\n"); |
| return err; |
| } |
| |
| IPW_DEBUG(IPW_DL_STATE, "associating: '%*pE' %pM\n", |
| priv->essid_len, priv->essid, priv->bssid); |
| |
| return 0; |
| } |
| |
| static void ipw_roam(void *data) |
| { |
| struct ipw_priv *priv = data; |
| struct libipw_network *network = NULL; |
| struct ipw_network_match match = { |
| .network = priv->assoc_network |
| }; |
| |
| /* The roaming process is as follows: |
| * |
| * 1. Missed beacon threshold triggers the roaming process by |
| * setting the status ROAM bit and requesting a scan. |
| * 2. When the scan completes, it schedules the ROAM work |
| * 3. The ROAM work looks at all of the known networks for one that |
| * is a better network than the currently associated. If none |
| * found, the ROAM process is over (ROAM bit cleared) |
| * 4. If a better network is found, a disassociation request is |
| * sent. |
| * 5. When the disassociation completes, the roam work is again |
| * scheduled. The second time through, the driver is no longer |
| * associated, and the newly selected network is sent an |
| * association request. |
| * 6. At this point ,the roaming process is complete and the ROAM |
| * status bit is cleared. |
| */ |
| |
| /* If we are no longer associated, and the roaming bit is no longer |
| * set, then we are not actively roaming, so just return */ |
| if (!(priv->status & (STATUS_ASSOCIATED | STATUS_ROAMING))) |
| return; |
| |
| if (priv->status & STATUS_ASSOCIATED) { |
| /* First pass through ROAM process -- look for a better |
| * network */ |
| unsigned long flags; |
| u8 rssi = priv->assoc_network->stats.rssi; |
| priv->assoc_network->stats.rssi = -128; |
| spin_lock_irqsave(&priv->ieee->lock, flags); |
| list_for_each_entry(network, &priv->ieee->network_list, list) { |
| if (network != priv->assoc_network) |
| ipw_best_network(priv, &match, network, 1); |
| } |
| spin_unlock_irqrestore(&priv->ieee->lock, flags); |
| priv->assoc_network->stats.rssi = rssi; |
| |
| if (match.network == priv->assoc_network) { |
| IPW_DEBUG_ASSOC("No better APs in this network to " |
| "roam to.\n"); |
| priv->status &= ~STATUS_ROAMING; |
| ipw_debug_config(priv); |
| return; |
| } |
| |
| ipw_send_disassociate(priv, 1); |
| priv->assoc_network = match.network; |
| |
| return; |
| } |
| |
| /* Second pass through ROAM process -- request association */ |
| ipw_compatible_rates(priv, priv->assoc_network, &match.rates); |
| ipw_associate_network(priv, priv->assoc_network, &match.rates, 1); |
| priv->status &= ~STATUS_ROAMING; |
| } |
| |
| static void ipw_bg_roam(struct work_struct *work) |
| { |
| struct ipw_priv *priv = |
| container_of(work, struct ipw_priv, roam); |
| mutex_lock(&priv->mutex); |
| ipw_roam(priv); |
| mutex_unlock(&priv->mutex); |
| } |
| |
| static int ipw_associate(void *data) |
| { |
| struct ipw_priv *priv = data; |
| |
| struct libipw_network *network = NULL; |
| struct ipw_network_match match = { |
| .network = NULL |
| }; |
| struct ipw_supported_rates *rates; |
| struct list_head *element; |
| unsigned long flags; |
| |
| if (priv->ieee->iw_mode == IW_MODE_MONITOR) { |
| IPW_DEBUG_ASSOC("Not attempting association (monitor mode)\n"); |
| return 0; |
| } |
| |
| if (priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) { |
| IPW_DEBUG_ASSOC("Not attempting association (already in " |
| "progress)\n"); |
| return 0; |
| } |
| |
| if (priv->status & STATUS_DISASSOCIATING) { |
| IPW_DEBUG_ASSOC("Not attempting association (in disassociating)\n"); |
| schedule_work(&priv->associate); |
| return 0; |
| } |
| |
| if (!ipw_is_init(priv) || (priv->status & STATUS_SCANNING)) { |
| IPW_DEBUG_ASSOC("Not attempting association (scanning or not " |
| "initialized)\n"); |
| return 0; |
| } |
| |
| if (!(priv->config & CFG_ASSOCIATE) && |
| !(priv->config & (CFG_STATIC_ESSID | CFG_STATIC_BSSID))) { |
| IPW_DEBUG_ASSOC("Not attempting association (associate=0)\n"); |
| return 0; |
| } |
| |
| /* Protect our use of the network_list */ |
| spin_lock_irqsave(&priv->ieee->lock, flags); |
| list_for_each_entry(network, &priv->ieee->network_list, list) |
| ipw_best_network(priv, &match, network, 0); |
| |
| network = match.network; |
| rates = &match.rates; |
| |
| if (network == NULL && |
| priv->ieee->iw_mode == IW_MODE_ADHOC && |
| priv->config & CFG_ADHOC_CREATE && |
| priv->config & CFG_STATIC_ESSID && |
| priv->config & CFG_STATIC_CHANNEL) { |
| /* Use oldest network if the free list is empty */ |
| if (list_empty(&priv->ieee->network_free_list)) { |
| struct libipw_network *oldest = NULL; |
| struct libipw_network *target; |
| |
| list_for_each_entry(target, &priv->ieee->network_list, list) { |
| if ((oldest == NULL) || |
| (target->last_scanned < oldest->last_scanned)) |
| oldest = target; |
| } |
| |
| /* If there are no more slots, expire the oldest */ |
| list_del(&oldest->list); |
| target = oldest; |
| IPW_DEBUG_ASSOC("Expired '%*pE' (%pM) from network list.\n", |
| target->ssid_len, target->ssid, |
| target->bssid); |
| list_add_tail(&target->list, |
| &priv->ieee->network_free_list); |
| } |
| |
| element = priv->ieee->network_free_list.next; |
| network = list_entry(element, struct libipw_network, list); |
| ipw_adhoc_create(priv, network); |
| rates = &priv->rates; |
| list_del(element); |
| list_add_tail(&network->list, &priv->ieee->network_list); |
| } |
| spin_unlock_irqrestore(&priv->ieee->lock, flags); |
| |
| /* If we reached the end of the list, then we don't have any valid |
| * matching APs */ |
| if (!network) { |
| ipw_debug_config(priv); |
| |
| if (!(priv->status & STATUS_SCANNING)) { |
| if (!(priv->config & CFG_SPEED_SCAN)) |
| schedule_delayed_work(&priv->request_scan, |
| SCAN_INTERVAL); |
| else |
| schedule_delayed_work(&priv->request_scan, 0); |
| } |
| |
| return 0; |
| } |
| |
| ipw_associate_network(priv, network, rates, 0); |
| |
| return 1; |
| } |
| |
| static void ipw_bg_associate(struct work_struct *work) |
| { |
| struct ipw_priv *priv = |
| container_of(work, struct ipw_priv, associate); |
| mutex_lock(&priv->mutex); |
| ipw_associate(priv); |
| mutex_unlock(&priv->mutex); |
| } |
| |
| static void ipw_rebuild_decrypted_skb(struct ipw_priv *priv, |
| struct sk_buff *skb) |
| { |
| struct ieee80211_hdr *hdr; |
| u16 fc; |
| |
| hdr = (struct ieee80211_hdr *)skb->data; |
| fc = le16_to_cpu(hdr->frame_control); |
| if (!(fc & IEEE80211_FCTL_PROTECTED)) |
| return; |
| |
| fc &= ~IEEE80211_FCTL_PROTECTED; |
| hdr->frame_control = cpu_to_le16(fc); |
| switch (priv->ieee->sec.level) { |
| case SEC_LEVEL_3: |
| /* Remove CCMP HDR */ |
| memmove(skb->data + LIBIPW_3ADDR_LEN, |
| skb->data + LIBIPW_3ADDR_LEN + 8, |
| skb->len - LIBIPW_3ADDR_LEN - 8); |
| skb_trim(skb, skb->len - 16); /* CCMP_HDR_LEN + CCMP_MIC_LEN */ |
| break; |
| case SEC_LEVEL_2: |
| break; |
| case SEC_LEVEL_1: |
| /* Remove IV */ |
| memmove(skb->data + LIBIPW_3ADDR_LEN, |
| skb->data + LIBIPW_3ADDR_LEN + 4, |
| skb->len - LIBIPW_3ADDR_LEN - 4); |
| skb_trim(skb, skb->len - 8); /* IV + ICV */ |
| break; |
| case SEC_LEVEL_0: |
| break; |
| default: |
| printk(KERN_ERR "Unknown security level %d\n", |
| priv->ieee->sec.level); |
| break; |
| } |
| } |
| |
| static void ipw_handle_data_packet(struct ipw_priv *priv, |
| struct ipw_rx_mem_buffer *rxb, |
| struct libipw_rx_stats *stats) |
| { |
| struct net_device *dev = priv->net_dev; |
| struct libipw_hdr_4addr *hdr; |
| struct ipw_rx_packet *pkt = (struct ipw_rx_packet *)rxb->skb->data; |
| |
| /* We received data from the HW, so stop the watchdog */ |
| netif_trans_update(dev); |
| |
| /* We only process data packets if the |
| * interface is open */ |
| if (unlikely((le16_to_cpu(pkt->u.frame.length) + IPW_RX_FRAME_SIZE) > |
| skb_tailroom(rxb->skb))) { |
| dev->stats.rx_errors++; |
| priv->wstats.discard.misc++; |
| IPW_DEBUG_DROP("Corruption detected! Oh no!\n"); |
| return; |
| } else if (unlikely(!netif_running(priv->net_dev))) { |
| dev->stats.rx_dropped++; |
| priv->wstats.discard.misc++; |
| IPW_DEBUG_DROP("Dropping packet while interface is not up.\n"); |
| return; |
| } |
| |
| /* Advance skb->data to the start of the actual payload */ |
| skb_reserve(rxb->skb, offsetof(struct ipw_rx_packet, u.frame.data)); |
| |
| /* Set the size of the skb to the size of the frame */ |
| skb_put(rxb->skb, le16_to_cpu(pkt->u.frame.length)); |
| |
| IPW_DEBUG_RX("Rx packet of %d bytes.\n", rxb->skb->len); |
| |
| /* HW decrypt will not clear the WEP bit, MIC, PN, etc. */ |
| hdr = (struct libipw_hdr_4addr *)rxb->skb->data; |
| if (priv->ieee->iw_mode != IW_MODE_MONITOR && |
| (is_multicast_ether_addr(hdr->addr1) ? |
| !priv->ieee->host_mc_decrypt : !priv->ieee->host_decrypt)) |
| ipw_rebuild_decrypted_skb(priv, rxb->skb); |
| |
| if (!libipw_rx(priv->ieee, rxb->skb, stats)) |
| dev->stats.rx_errors++; |
| else { /* libipw_rx succeeded, so it now owns the SKB */ |
| rxb->skb = NULL; |
| __ipw_led_activity_on(priv); |
| } |
| } |
| |
| #ifdef CONFIG_IPW2200_RADIOTAP |
| static void ipw_handle_data_packet_monitor(struct ipw_priv *priv, |
| struct ipw_rx_mem_buffer *rxb, |
| struct libipw_rx_stats *stats) |
| { |
| struct net_device *dev = priv->net_dev; |
| struct ipw_rx_packet *pkt = (struct ipw_rx_packet *)rxb->skb->data; |
| struct ipw_rx_frame *frame = &pkt->u.frame; |
| |
| /* initial pull of some data */ |
| u16 received_channel = frame->received_channel; |
| u8 antennaAndPhy = frame->antennaAndPhy; |
| s8 antsignal = frame->rssi_dbm - IPW_RSSI_TO_DBM; /* call it signed anyhow */ |
| u16 pktrate = frame->rate; |
| |
| /* Magic struct that slots into the radiotap header -- no reason |
| * to build this manually element by element, we can write it much |
| * more efficiently than we can parse it. ORDER MATTERS HERE */ |
| struct ipw_rt_hdr *ipw_rt; |
| |
| unsigned short len = le16_to_cpu(pkt->u.frame.length); |
| |
| /* We received data from the HW, so stop the watchdog */ |
| netif_trans_update(dev); |
| |
| /* We only process data packets if the |
| * interface is open */ |
| if (unlikely((le16_to_cpu(pkt->u.frame.length) + IPW_RX_FRAME_SIZE) > |
| skb_tailroom(rxb->skb))) { |
| dev->stats.rx_errors++; |
| priv->wstats.discard.misc++; |
| IPW_DEBUG_DROP("Corruption detected! Oh no!\n"); |
| return; |
| } else if (unlikely(!netif_running(priv->net_dev))) { |
| dev->stats.rx_dropped++; |
| priv->wstats.discard.misc++; |
| IPW_DEBUG_DROP("Dropping packet while interface is not up.\n"); |
| return; |
| } |
| |
| /* Libpcap 0.9.3+ can handle variable length radiotap, so we'll use |
| * that now */ |
| if (len > IPW_RX_BUF_SIZE - sizeof(struct ipw_rt_hdr)) { |
| /* FIXME: Should alloc bigger skb instead */ |
| dev->stats.rx_dropped++; |
| priv->wstats.discard.misc++; |
| IPW_DEBUG_DROP("Dropping too large packet in monitor\n"); |
| return; |
| } |
| |
| /* copy the frame itself */ |
| memmove(rxb->skb->data + sizeof(struct ipw_rt_hdr), |
| rxb->skb->data + IPW_RX_FRAME_SIZE, len); |
| |
| ipw_rt = (struct ipw_rt_hdr *)rxb->skb->data; |
| |
| ipw_rt->rt_hdr.it_version = PKTHDR_RADIOTAP_VERSION; |
| ipw_rt->rt_hdr.it_pad = 0; /* always good to zero */ |
| ipw_rt->rt_hdr.it_len = cpu_to_le16(sizeof(struct ipw_rt_hdr)); /* total header+data */ |
| |
| /* Big bitfield of all the fields we provide in radiotap */ |
| ipw_rt->rt_hdr.it_present = cpu_to_le32( |
| (1 << IEEE80211_RADIOTAP_TSFT) | |
| (1 << IEEE80211_RADIOTAP_FLAGS) | |
| (1 << IEEE80211_RADIOTAP_RATE) | |
| (1 << IEEE80211_RADIOTAP_CHANNEL) | |
| (1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) | |
| (1 << IEEE80211_RADIOTAP_DBM_ANTNOISE) | |
| (1 << IEEE80211_RADIOTAP_ANTENNA)); |
| |
| /* Zero the flags, we'll add to them as we go */ |
| ipw_rt->rt_flags = 0; |
| ipw_rt->rt_tsf = (u64)(frame->parent_tsf[3] << 24 | |
| frame->parent_tsf[2] << 16 | |
| frame->parent_tsf[1] << 8 | |
| frame->parent_tsf[0]); |
| |
| /* Convert signal to DBM */ |
| ipw_rt->rt_dbmsignal = antsignal; |
| ipw_rt->rt_dbmnoise = (s8) le16_to_cpu(frame->noise); |
| |
| /* Convert the channel data and set the flags */ |
| ipw_rt->rt_channel = cpu_to_le16(ieee80211chan2mhz(received_channel)); |
| if (received_channel > 14) { /* 802.11a */ |
| ipw_rt->rt_chbitmask = |
| cpu_to_le16((IEEE80211_CHAN_OFDM | IEEE80211_CHAN_5GHZ)); |
| } else if (antennaAndPhy & 32) { /* 802.11b */ |
| ipw_rt->rt_chbitmask = |
| cpu_to_le16((IEEE80211_CHAN_CCK | IEEE80211_CHAN_2GHZ)); |
| } else { /* 802.11g */ |
| ipw_rt->rt_chbitmask = |
| cpu_to_le16(IEEE80211_CHAN_OFDM | IEEE80211_CHAN_2GHZ); |
| } |
| |
| /* set the rate in multiples of 500k/s */ |
| switch (pktrate) { |
| case IPW_TX_RATE_1MB: |
| ipw_rt->rt_rate = 2; |
| break; |
| case IPW_TX_RATE_2MB: |
| ipw_rt->rt_rate = 4; |
| break; |
| case IPW_TX_RATE_5MB: |
| ipw_rt->rt_rate = 10; |
| break; |
| case IPW_TX_RATE_6MB: |
| ipw_rt->rt_rate = 12; |
| break; |
| case IPW_TX_RATE_9MB: |
| ipw_rt->rt_rate = 18; |
| break; |
| case IPW_TX_RATE_11MB: |
| ipw_rt->rt_rate = 22; |
| break; |
| case IPW_TX_RATE_12MB: |
| ipw_rt->rt_rate = 24; |
| break; |
| case IPW_TX_RATE_18MB: |
| ipw_rt->rt_rate = 36; |
| break; |
| case IPW_TX_RATE_24MB: |
| ipw_rt->rt_rate = 48; |
| break; |
| case IPW_TX_RATE_36MB: |
| ipw_rt->rt_rate = 72; |
| break; |
| case IPW_TX_RATE_48MB: |
| ipw_rt->rt_rate = 96; |
| break; |
| case IPW_TX_RATE_54MB: |
| ipw_rt->rt_rate = 108; |
| break; |
| default: |
| ipw_rt->rt_rate = 0; |
| break; |
| } |
| |
| /* antenna number */ |
| ipw_rt->rt_antenna = (antennaAndPhy & 3); /* Is this right? */ |
| |
| /* set the preamble flag if we have it */ |
| if ((antennaAndPhy & 64)) |
| ipw_rt->rt_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; |
| |
| /* Set the size of the skb to the size of the frame */ |
| skb_put(rxb->skb, len + sizeof(struct ipw_rt_hdr)); |
| |
| IPW_DEBUG_RX("Rx packet of %d bytes.\n", rxb->skb->len); |
| |
| if (!libipw_rx(priv->ieee, rxb->skb, stats)) |
| dev->stats.rx_errors++; |
| else { /* libipw_rx succeeded, so it now owns the SKB */ |
| rxb->skb = NULL; |
| /* no LED during capture */ |
| } |
| } |
| #endif |
| |
| #ifdef CONFIG_IPW2200_PROMISCUOUS |
| #define libipw_is_probe_response(fc) \ |
| ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT && \ |
| (fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PROBE_RESP ) |
| |
| #define libipw_is_management(fc) \ |
| ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) |
| |
| #define libipw_is_control(fc) \ |
| ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL) |
| |
| #define libipw_is_data(fc) \ |
| ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA) |
| |
| #define libipw_is_assoc_request(fc) \ |
| ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_ASSOC_REQ) |
| |
| #define libipw_is_reassoc_request(fc) \ |
| ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_REASSOC_REQ) |
| |
| static void ipw_handle_promiscuous_rx(struct ipw_priv *priv, |
| struct ipw_rx_mem_buffer *rxb, |
| struct libipw_rx_stats *stats) |
| { |
| struct net_device *dev = priv->prom_net_dev; |
| struct ipw_rx_packet *pkt = (struct ipw_rx_packet *)rxb->skb->data; |
| struct ipw_rx_frame *frame = &pkt->u.frame; |
| struct ipw_rt_hdr *ipw_rt; |
| |
| /* First cache any information we need before we overwrite |
| * the information provided in the skb from the hardware */ |
| struct ieee80211_hdr *hdr; |
| u16 channel = frame->received_channel; |
| u8 phy_flags = frame->antennaAndPhy; |
| s8 signal = frame->rssi_dbm - IPW_RSSI_TO_DBM; |
| s8 noise = (s8) le16_to_cpu(frame->noise); |
| u8 rate = frame->rate; |
| unsigned short len = le16_to_cpu(pkt->u.frame.length); |
| struct sk_buff *skb; |
| int hdr_only = 0; |
| u16 filter = priv->prom_priv->filter; |
| |
| /* If the filter is set to not include Rx frames then return */ |
| if (filter & IPW_PROM_NO_RX) |
| return; |
| |
| /* We received data from the HW, so stop the watchdog */ |
| netif_trans_update(dev); |
| |
| if (unlikely((len + IPW_RX_FRAME_SIZE) > skb_tailroom(rxb->skb))) { |
| dev->stats.rx_errors++; |
| IPW_DEBUG_DROP("Corruption detected! Oh no!\n"); |
| return; |
| } |
| |
| /* We only process data packets if the interface is open */ |
| if (unlikely(!netif_running(dev))) { |
| dev->stats.rx_dropped++; |
| IPW_DEBUG_DROP("Dropping packet while interface is not up.\n"); |
| return; |
| } |
| |
| /* Libpcap 0.9.3+ can handle variable length radiotap, so we'll use |
| * that now */ |
| if (len > IPW_RX_BUF_SIZE - sizeof(struct ipw_rt_hdr)) { |
| /* FIXME: Should alloc bigger skb instead */ |
| dev->stats.rx_dropped++; |
| IPW_DEBUG_DROP("Dropping too large packet in monitor\n"); |
| return; |
| } |
| |
| hdr = (void *)rxb->skb->data + IPW_RX_FRAME_SIZE; |
| if (libipw_is_management(le16_to_cpu(hdr->frame_control))) { |
| if (filter & IPW_PROM_NO_MGMT) |
| return; |
| if (filter & IPW_PROM_MGMT_HEADER_ONLY) |
| hdr_only = 1; |
| } else if (libipw_is_control(le16_to_cpu(hdr->frame_control))) { |
| if (filter & IPW_PROM_NO_CTL) |
| return; |
| if (filter & IPW_PROM_CTL_HEADER_ONLY) |
| hdr_only = 1; |
| } else if (libipw_is_data(le16_to_cpu(hdr->frame_control))) { |
| if (filter & IPW_PROM_NO_DATA) |
| return; |
| if (filter & IPW_PROM_DATA_HEADER_ONLY) |
| hdr_only = 1; |
| } |
| |
| /* Copy the SKB since this is for the promiscuous side */ |
| skb = skb_copy(rxb->skb, GFP_ATOMIC); |
| if (skb == NULL) { |
| IPW_ERROR("skb_clone failed for promiscuous copy.\n"); |
| return; |
| } |
| |
| /* copy the frame data to write after where the radiotap header goes */ |
| ipw_rt = (void *)skb->data; |
| |
| if (hdr_only) |
| len = libipw_get_hdrlen(le16_to_cpu(hdr->frame_control)); |
| |
| memcpy(ipw_rt->payload, hdr, len); |
| |
| ipw_rt->rt_hdr.it_version = PKTHDR_RADIOTAP_VERSION; |
| ipw_rt->rt_hdr.it_pad = 0; /* always good to zero */ |
| ipw_rt->rt_hdr.it_len = cpu_to_le16(sizeof(*ipw_rt)); /* total header+data */ |
| |
| /* Set the size of the skb to the size of the frame */ |
| skb_put(skb, sizeof(*ipw_rt) + len); |
| |
| /* Big bitfield of all the fields we provide in radiotap */ |
| ipw_rt->rt_hdr.it_present = cpu_to_le32( |
| (1 << IEEE80211_RADIOTAP_TSFT) | |
| (1 << IEEE80211_RADIOTAP_FLAGS) | |
| (1 << IEEE80211_RADIOTAP_RATE) | |
| (1 << IEEE80211_RADIOTAP_CHANNEL) | |
| (1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) | |
| (1 << IEEE80211_RADIOTAP_DBM_ANTNOISE) | |
| (1 << IEEE80211_RADIOTAP_ANTENNA)); |
| |
| /* Zero the flags, we'll add to them as we go */ |
| ipw_rt->rt_flags = 0; |
| ipw_rt->rt_tsf = (u64)(frame->parent_tsf[3] << 24 | |
| frame->parent_tsf[2] << 16 | |
| frame->parent_tsf[1] << 8 | |
| frame->parent_tsf[0]); |
| |
| /* Convert to DBM */ |
| ipw_rt->rt_dbmsignal = signal; |
| ipw_rt->rt_dbmnoise = noise; |
| |
| /* Convert the channel data and set the flags */ |
| ipw_rt->rt_channel = cpu_to_le16(ieee80211chan2mhz(channel)); |
| if (channel > 14) { /* 802.11a */ |
| ipw_rt->rt_chbitmask = |
| cpu_to_le16((IEEE80211_CHAN_OFDM | IEEE80211_CHAN_5GHZ)); |
| } else if (phy_flags & (1 << 5)) { /* 802.11b */ |
| ipw_rt->rt_chbitmask = |
| cpu_to_le16((IEEE80211_CHAN_CCK | IEEE80211_CHAN_2GHZ)); |
| } else { /* 802.11g */ |
| ipw_rt->rt_chbitmask = |
| cpu_to_le16(IEEE80211_CHAN_OFDM | IEEE80211_CHAN_2GHZ); |
| } |
| |
| /* set the rate in multiples of 500k/s */ |
| switch (rate) { |
| case IPW_TX_RATE_1MB: |
| ipw_rt->rt_rate = 2; |
| break; |
| case IPW_TX_RATE_2MB: |
| ipw_rt->rt_rate = 4; |
| break; |
| case IPW_TX_RATE_5MB: |
| ipw_rt->rt_rate = 10; |
| break; |
| case IPW_TX_RATE_6MB: |
| ipw_rt->rt_rate = 12; |
| break; |
| case IPW_TX_RATE_9MB: |
| ipw_rt->rt_rate = 18; |
| break; |
| case IPW_TX_RATE_11MB: |
| ipw_rt->rt_rate = 22; |
| break; |
| case IPW_TX_RATE_12MB: |
| ipw_rt->rt_rate = 24; |
| break; |
| case IPW_TX_RATE_18MB: |
| ipw_rt->rt_rate = 36; |
| break; |
| case IPW_TX_RATE_24MB: |
| ipw_rt->rt_rate = 48; |
| break; |
| case IPW_TX_RATE_36MB: |
| ipw_rt->rt_rate = 72; |
| break; |
| case IPW_TX_RATE_48MB: |
| ipw_rt->rt_rate = 96; |
| break; |
| case IPW_TX_RATE_54MB: |
| ipw_rt->rt_rate = 108; |
| break; |
| default: |
| ipw_rt->rt_rate = 0; |
| break; |
| } |
| |
| /* antenna number */ |
| ipw_rt->rt_antenna = (phy_flags & 3); |
| |
| /* set the preamble flag if we have it */ |
| if (phy_flags & (1 << 6)) |
| ipw_rt->rt_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; |
| |
| IPW_DEBUG_RX("Rx packet of %d bytes.\n", skb->len); |
| |
| if (!libipw_rx(priv->prom_priv->ieee, skb, stats)) { |
| dev->stats.rx_errors++; |
| dev_kfree_skb_any(skb); |
| } |
| } |
| #endif |
| |
| static int is_network_packet(struct ipw_priv *priv, |
| struct libipw_hdr_4addr *header) |
| { |
| /* Filter incoming packets to determine if they are targeted toward |
| * this network, discarding packets coming from ourselves */ |
| switch (priv->ieee->iw_mode) { |
| case IW_MODE_ADHOC: /* Header: Dest. | Source | BSSID */ |
| /* packets from our adapter are dropped (echo) */ |
| if (ether_addr_equal(header->addr2, priv->net_dev->dev_addr)) |
| return 0; |
| |
| /* {broad,multi}cast packets to our BSSID go through */ |
| if (is_multicast_ether_addr(header->addr1)) |
| return ether_addr_equal(header->addr3, priv->bssid); |
| |
| /* packets to our adapter go through */ |
| return ether_addr_equal(header->addr1, |
| priv->net_dev->dev_addr); |
| |
| case IW_MODE_INFRA: /* Header: Dest. | BSSID | Source */ |
| /* packets from our adapter are dropped (echo) */ |
| if (ether_addr_equal(header->addr3, priv->net_dev->dev_addr)) |
| return 0; |
| |
| /* {broad,multi}cast packets to our BSS go through */ |
| if (is_multicast_ether_addr(header->addr1)) |
| return ether_addr_equal(header->addr2, priv->bssid); |
| |
| /* packets to our adapter go through */ |
| return ether_addr_equal(header->addr1, |
| priv->net_dev->dev_addr); |
| } |
| |
| return 1; |
| } |
| |
| #define IPW_PACKET_RETRY_TIME HZ |
| |
| static int is_duplicate_packet(struct ipw_priv *priv, |
| struct libipw_hdr_4addr *header) |
| { |
| u16 sc = le16_to_cpu(header->seq_ctl); |
| u16 seq = WLAN_GET_SEQ_SEQ(sc); |
| u16 frag = WLAN_GET_SEQ_FRAG(sc); |
| u16 *last_seq, *last_frag; |
| unsigned long *last_time; |
| |
| switch (priv->ieee->iw_mode) { |
| case IW_MODE_ADHOC: |
| { |
| struct list_head *p; |
| struct ipw_ibss_seq *entry = NULL; |
| u8 *mac = header->addr2; |
| int index = mac[5] % IPW_IBSS_MAC_HASH_SIZE; |
| |
| list_for_each(p, &priv->ibss_mac_hash[index]) { |
| entry = |
| list_entry(p, struct ipw_ibss_seq, list); |
| if (ether_addr_equal(entry->mac, mac)) |
| break; |
| } |
| if (p == &priv->ibss_mac_hash[index]) { |
| entry = kmalloc(sizeof(*entry), GFP_ATOMIC); |
| if (!entry) { |
| IPW_ERROR |
| ("Cannot malloc new mac entry\n"); |
| return 0; |
| } |
| memcpy(entry->mac, mac, ETH_ALEN); |
| entry->seq_num = seq; |
| entry->frag_num = frag; |
| entry->packet_time = jiffies; |
| list_add(&entry->list, |
| &priv->ibss_mac_hash[index]); |
| return 0; |
| } |
| last_seq = &entry->seq_num; |
| last_frag = &entry->frag_num; |
| last_time = &entry->packet_time; |
| break; |
| } |
| case IW_MODE_INFRA: |
| last_seq = &priv->last_seq_num; |
| last_frag = &priv->last_frag_num; |
| last_time = &priv->last_packet_time; |
| break; |
| default: |
| return 0; |
| } |
| if ((*last_seq == seq) && |
| time_after(*last_time + IPW_PACKET_RETRY_TIME, jiffies)) { |
| if (*last_frag == frag) |
| goto drop; |
| if (*last_frag + 1 != frag) |
| /* out-of-order fragment */ |
| goto drop; |
| } else |
| *last_seq = seq; |
| |
| *last_frag = frag; |
| *last_time = jiffies; |
| return 0; |
| |
| drop: |
| /* Comment this line now since we observed the card receives |
| * duplicate packets but the FCTL_RETRY bit is not set in the |
| * IBSS mode with fragmentation enabled. |
| BUG_ON(!(le16_to_cpu(header->frame_control) & IEEE80211_FCTL_RETRY)); */ |
| return 1; |
| } |
| |
| static void ipw_handle_mgmt_packet(struct ipw_priv *priv, |
| struct ipw_rx_mem_buffer *rxb, |
| struct libipw_rx_stats *stats) |
| { |
| struct sk_buff *skb = rxb->skb; |
| struct ipw_rx_packet *pkt = (struct ipw_rx_packet *)skb->data; |
| struct libipw_hdr_4addr *header = (struct libipw_hdr_4addr *) |
| (skb->data + IPW_RX_FRAME_SIZE); |
| |
| libipw_rx_mgt(priv->ieee, header, stats); |
| |
| if (priv->ieee->iw_mode == IW_MODE_ADHOC && |
| ((WLAN_FC_GET_STYPE(le16_to_cpu(header->frame_ctl)) == |
| IEEE80211_STYPE_PROBE_RESP) || |
| (WLAN_FC_GET_STYPE(le16_to_cpu(header->frame_ctl)) == |
| IEEE80211_STYPE_BEACON))) { |
| if (ether_addr_equal(header->addr3, priv->bssid)) |
| ipw_add_station(priv, header->addr2); |
| } |
| |
| if (priv->config & CFG_NET_STATS) { |
| IPW_DEBUG_HC("sending stat packet\n"); |
| |
| /* Set the size of the skb to the size of the full |
| * ipw header and 802.11 frame */ |
| skb_put(skb, le16_to_cpu(pkt->u.frame.length) + |
| IPW_RX_FRAME_SIZE); |
| |
| /* Advance past the ipw packet header to the 802.11 frame */ |
| skb_pull(skb, IPW_RX_FRAME_SIZE); |
| |
| /* Push the libipw_rx_stats before the 802.11 frame */ |
| memcpy(skb_push(skb, sizeof(*stats)), stats, sizeof(*stats)); |
| |
| skb->dev = priv->ieee->dev; |
| |
| /* Point raw at the libipw_stats */ |
| skb_reset_mac_header(skb); |
| |
| skb->pkt_type = PACKET_OTHERHOST; |
| skb->protocol = cpu_to_be16(ETH_P_80211_STATS); |
| memset(skb->cb, 0, sizeof(rxb->skb->cb)); |
| netif_rx(skb); |
| rxb->skb = NULL; |
| } |
| } |
| |
| /* |
| * Main entry function for receiving a packet with 80211 headers. This |
| * should be called when ever the FW has notified us that there is a new |
| * skb in the receive queue. |
| */ |
| static void ipw_rx(struct ipw_priv *priv) |
| { |
| struct ipw_rx_mem_buffer *rxb; |
| struct ipw_rx_packet *pkt; |
| struct libipw_hdr_4addr *header; |
| u32 r, w, i; |
| u8 network_packet; |
| u8 fill_rx = 0; |
| |
| r = ipw_read32(priv, IPW_RX_READ_INDEX); |
| w = ipw_read32(priv, IPW_RX_WRITE_INDEX); |
| i = priv->rxq->read; |
| |
| if (ipw_rx_queue_space (priv->rxq) > (RX_QUEUE_SIZE / 2)) |
| fill_rx = 1; |
| |
| while (i != r) { |
| rxb = priv->rxq->queue[i]; |
| if (unlikely(rxb == NULL)) { |
| printk(KERN_CRIT "Queue not allocated!\n"); |
| break; |
| } |
| priv->rxq->queue[i] = NULL; |
| |
| dma_sync_single_for_cpu(&priv->pci_dev->dev, rxb->dma_addr, |
| IPW_RX_BUF_SIZE, DMA_FROM_DEVICE); |
| |
| pkt = (struct ipw_rx_packet *)rxb->skb->data; |
| IPW_DEBUG_RX("Packet: type=%02X seq=%02X bits=%02X\n", |
| pkt->header.message_type, |
| pkt->header.rx_seq_num, pkt->header.control_bits); |
| |
| switch (pkt->header.message_type) { |
| case RX_FRAME_TYPE: /* 802.11 frame */ { |
| struct libipw_rx_stats stats = { |
| .rssi = pkt->u.frame.rssi_dbm - |
| IPW_RSSI_TO_DBM, |
| .signal = |
| pkt->u.frame.rssi_dbm - |
| IPW_RSSI_TO_DBM + 0x100, |
| .noise = |
| le16_to_cpu(pkt->u.frame.noise), |
| .rate = pkt->u.frame.rate, |
| .mac_time = jiffies, |
| .received_channel = |
| pkt->u.frame.received_channel, |
| .freq = |
| (pkt->u.frame. |
| control & (1 << 0)) ? |
| LIBIPW_24GHZ_BAND : |
| LIBIPW_52GHZ_BAND, |
| .len = le16_to_cpu(pkt->u.frame.length), |
| }; |
| |
| if (stats.rssi != 0) |
| stats.mask |= LIBIPW_STATMASK_RSSI; |
| if (stats.signal != 0) |
| stats.mask |= LIBIPW_STATMASK_SIGNAL; |
| if (stats.noise != 0) |
| stats.mask |= LIBIPW_STATMASK_NOISE; |
| if (stats.rate != 0) |
| stats.mask |= LIBIPW_STATMASK_RATE; |
| |
| priv->rx_packets++; |
| |
| #ifdef CONFIG_IPW2200_PROMISCUOUS |
| if (priv->prom_net_dev && netif_running(priv->prom_net_dev)) |
| ipw_handle_promiscuous_rx(priv, rxb, &stats); |
| #endif |
| |
| #ifdef CONFIG_IPW2200_MONITOR |
| if (priv->ieee->iw_mode == IW_MODE_MONITOR) { |
| #ifdef CONFIG_IPW2200_RADIOTAP |
| |
| ipw_handle_data_packet_monitor(priv, |
| rxb, |
| &stats); |
| #else |
| ipw_handle_data_packet(priv, rxb, |
| &stats); |
| #endif |
| break; |
| } |
| #endif |
| |
| header = |
| (struct libipw_hdr_4addr *)(rxb->skb-> |
| data + |
| IPW_RX_FRAME_SIZE); |
| /* TODO: Check Ad-Hoc dest/source and make sure |
| * that we are actually parsing these packets |
| * correctly -- we should probably use the |
| * frame control of the packet and disregard |
| * the current iw_mode */ |
| |
| network_packet = |
| is_network_packet(priv, header); |
| if (network_packet && priv->assoc_network) { |
| priv->assoc_network->stats.rssi = |
| stats.rssi; |
| priv->exp_avg_rssi = |
| exponential_average(priv->exp_avg_rssi, |
| stats.rssi, DEPTH_RSSI); |
| } |
| |
| IPW_DEBUG_RX("Frame: len=%u\n", |
| le16_to_cpu(pkt->u.frame.length)); |
| |
| if (le16_to_cpu(pkt->u.frame.length) < |
| libipw_get_hdrlen(le16_to_cpu( |
| header->frame_ctl))) { |
| IPW_DEBUG_DROP |
| ("Received packet is too small. " |
| "Dropping.\n"); |
| priv->net_dev->stats.rx_errors++; |
| priv->wstats.discard.misc++; |
| break; |
| } |
| |
| switch (WLAN_FC_GET_TYPE |
| (le16_to_cpu(header->frame_ctl))) { |
| |
| case IEEE80211_FTYPE_MGMT: |
| ipw_handle_mgmt_packet(priv, rxb, |
| &stats); |
| break; |
| |
| case IEEE80211_FTYPE_CTL: |
| break; |
| |
| case IEEE80211_FTYPE_DATA: |
| if (unlikely(!network_packet || |
| is_duplicate_packet(priv, |
| header))) |
| { |
| IPW_DEBUG_DROP("Dropping: " |
| "%pM, " |
| "%pM, " |
| "%pM\n", |
| header->addr1, |
| header->addr2, |
| header->addr3); |
| break; |
| } |
| |
| ipw_handle_data_packet(priv, rxb, |
| &stats); |
| |
| break; |
| } |
| break; |
| } |
| |
| case RX_HOST_NOTIFICATION_TYPE:{ |
| IPW_DEBUG_RX |
| ("Notification: subtype=%02X flags=%02X size=%d\n", |
| pkt->u.notification.subtype, |
| pkt->u.notification.flags, |
| le16_to_cpu(pkt->u.notification.size)); |
| ipw_rx_notification(priv, &pkt->u.notification); |
| break; |
| } |
| |
| default: |
| IPW_DEBUG_RX("Bad Rx packet of type %d\n", |
| pkt->header.message_type); |
| break; |
| } |
| |
| /* For now we just don't re-use anything. We can tweak this |
| * later to try and re-use notification packets and SKBs that |
| * fail to Rx correctly */ |
| if (rxb->skb != NULL) { |
| dev_kfree_skb_any(rxb->skb); |
| rxb->skb = NULL; |
| } |
| |
| dma_unmap_single(&priv->pci_dev->dev, rxb->dma_addr, |
| IPW_RX_BUF_SIZE, DMA_FROM_DEVICE); |
| list_add_tail(&rxb->list, &priv->rxq->rx_used); |
| |
| i = (i + 1) % RX_QUEUE_SIZE; |
| |
| /* If there are a lot of unsued frames, restock the Rx queue |
| * so the ucode won't assert */ |
| if (fill_rx) { |
| priv->rxq->read = i; |
| ipw_rx_queue_replenish(priv); |
| } |
| } |
| |
| /* Backtrack one entry */ |
| priv->rxq->read = i; |
| ipw_rx_queue_restock(priv); |
| } |
| |
| #define DEFAULT_RTS_THRESHOLD 2304U |
| #define MIN_RTS_THRESHOLD 1U |
| #define MAX_RTS_THRESHOLD 2304U |
| #define DEFAULT_BEACON_INTERVAL 100U |
| #define DEFAULT_SHORT_RETRY_LIMIT 7U |
| #define DEFAULT_LONG_RETRY_LIMIT 4U |
| |
| /** |
| * ipw_sw_reset |
| * @option: options to control different reset behaviour |
| * 0 = reset everything except the 'disable' module_param |
| * 1 = reset everything and print out driver info (for probe only) |
| * 2 = reset everything |
| */ |
| static int ipw_sw_reset(struct ipw_priv *priv, int option) |
| { |
| int band, modulation; |
| int old_mode = priv->ieee->iw_mode; |
| |
| /* Initialize module parameter values here */ |
| priv->config = 0; |
| |
| /* We default to disabling the LED code as right now it causes |
| * too many systems to lock up... */ |
| if (!led_support) |
| priv->config |= CFG_NO_LED; |
| |
| if (associate) |
| priv->config |= CFG_ASSOCIATE; |
| else |
| IPW_DEBUG_INFO("Auto associate disabled.\n"); |
| |
| if (auto_create) |
| priv->config |= CFG_ADHOC_CREATE; |
| else |
| IPW_DEBUG_INFO("Auto adhoc creation disabled.\n"); |
| |
| priv->config &= ~CFG_STATIC_ESSID; |
| priv->essid_len = 0; |
| memset(priv->essid, 0, IW_ESSID_MAX_SIZE); |
| |
| if (disable && option) { |
| priv->status |= STATUS_RF_KILL_SW; |
| IPW_DEBUG_INFO("Radio disabled.\n"); |
| } |
| |
| if (default_channel != 0) { |
| priv->config |= CFG_STATIC_CHANNEL; |
| priv->channel = default_channel; |
| IPW_DEBUG_INFO("Bind to static channel %d\n", default_channel); |
| /* TODO: Validate that provided channel is in range */ |
| } |
| #ifdef CONFIG_IPW2200_QOS |
| ipw_qos_init(priv, qos_enable, qos_burst_enable, |
| burst_duration_CCK, burst_duration_OFDM); |
| #endif /* CONFIG_IPW2200_QOS */ |
| |
| switch (network_mode) { |
| case 1: |
| priv->ieee->iw_mode = IW_MODE_ADHOC; |
| priv->net_dev->type = ARPHRD_ETHER; |
| |
| break; |
| #ifdef CONFIG_IPW2200_MONITOR |
| case 2: |
| priv->ieee->iw_mode = IW_MODE_MONITOR; |
| #ifdef CONFIG_IPW2200_RADIOTAP |
| priv->net_dev->type = ARPHRD_IEEE80211_RADIOTAP; |
| #else |
| priv->net_dev->type = ARPHRD_IEEE80211; |
| #endif |
| break; |
| #endif |
| default: |
| case 0: |
| priv->net_dev->type = ARPHRD_ETHER; |
| priv->ieee->iw_mode = IW_MODE_INFRA; |
| break; |
| } |
| |
| if (hwcrypto) { |
| priv->ieee->host_encrypt = 0; |
| priv->ieee->host_encrypt_msdu = 0; |
| priv->ieee->host_decrypt = 0; |
| priv->ieee->host_mc_decrypt = 0; |
| } |
| IPW_DEBUG_INFO("Hardware crypto [%s]\n", hwcrypto ? "on" : "off"); |
| |
| /* IPW2200/2915 is abled to do hardware fragmentation. */ |
| priv->ieee->host_open_frag = 0; |
| |
| if ((priv->pci_dev->device == 0x4223) || |
| (priv->pci_dev->device == 0x4224)) { |
| if (option == 1) |
| printk(KERN_INFO DRV_NAME |
| ": Detected Intel PRO/Wireless 2915ABG Network " |
| "Connection\n"); |
| priv->ieee->abg_true = 1; |
| band = LIBIPW_52GHZ_BAND | LIBIPW_24GHZ_BAND; |
| modulation = LIBIPW_OFDM_MODULATION | |
| LIBIPW_CCK_MODULATION; |
| priv->adapter = IPW_2915ABG; |
| priv->ieee->mode = IEEE_A | IEEE_G | IEEE_B; |
| } else { |
| if (option == 1) |
| printk(KERN_INFO DRV_NAME |
| ": Detected Intel PRO/Wireless 2200BG Network " |
| "Connection\n"); |
| |
| priv->ieee->abg_true = 0; |
| band = LIBIPW_24GHZ_BAND; |
| modulation = LIBIPW_OFDM_MODULATION | |
| LIBIPW_CCK_MODULATION; |
| priv->adapter = IPW_2200BG; |
| priv->ieee->mode = IEEE_G | IEEE_B; |
| } |
| |
| priv->ieee->freq_band = band; |
| priv->ieee->modulation = modulation; |
| |
| priv->rates_mask = LIBIPW_DEFAULT_RATES_MASK; |
| |
| priv->disassociate_threshold = IPW_MB_DISASSOCIATE_THRESHOLD_DEFAULT; |
| priv->roaming_threshold = IPW_MB_ROAMING_THRESHOLD_DEFAULT; |
| |
| priv->rts_threshold = DEFAULT_RTS_THRESHOLD; |
| priv->short_retry_limit = DEFAULT_SHORT_RETRY_LIMIT; |
| priv->long_retry_limit = DEFAULT_LONG_RETRY_LIMIT; |
| |
| /* If power management is turned on, default to AC mode */ |
| priv->power_mode = IPW_POWER_AC; |
| priv->tx_power = IPW_TX_POWER_DEFAULT; |
| |
| return old_mode == priv->ieee->iw_mode; |
| } |
| |
| /* |
| * This file defines the Wireless Extension handlers. It does not |
| * define any methods of hardware manipulation and relies on the |
| * functions defined in ipw_main to provide the HW interaction. |
| * |
| * The exception to this is the use of the ipw_get_ordinal() |
| * function used to poll the hardware vs. making unnecessary calls. |
| * |
| */ |
| |
| static int ipw_set_channel(struct ipw_priv *priv, u8 channel) |
| { |
| if (channel == 0) { |
| IPW_DEBUG_INFO("Setting channel to ANY (0)\n"); |
| priv->config &= ~CFG_STATIC_CHANNEL; |
| IPW_DEBUG_ASSOC("Attempting to associate with new " |
| "parameters.\n"); |
| ipw_associate(priv); |
| return 0; |
| } |
| |
| priv->config |= CFG_STATIC_CHANNEL; |
| |
| if (priv->channel == channel) { |
| IPW_DEBUG_INFO("Request to set channel to current value (%d)\n", |
| channel); |
| return 0; |
| } |
| |
| IPW_DEBUG_INFO("Setting channel to %i\n", (int)channel); |
| priv->channel = channel; |
| |
| #ifdef CONFIG_IPW2200_MONITOR |
| if (priv->ieee->iw_mode == IW_MODE_MONITOR) { |
| int i; |
| if (priv->status & STATUS_SCANNING) { |
| IPW_DEBUG_SCAN("Scan abort triggered due to " |
| "channel change.\n"); |
| ipw_abort_scan(priv); |
| } |
| |
| for (i = 1000; i && (priv->status & STATUS_SCANNING); i--) |
| udelay(10); |
| |
| if (priv->status & STATUS_SCANNING) |
| IPW_DEBUG_SCAN("Still scanning...\n"); |
| else |
| IPW_DEBUG_SCAN("Took %dms to abort current scan\n", |
| 1000 - i); |
| |
| return 0; |
| } |
| #endif /* CONFIG_IPW2200_MONITOR */ |
| |
| /* Network configuration changed -- force [re]association */ |
| IPW_DEBUG_ASSOC("[re]association triggered due to channel change.\n"); |
| if (!ipw_disassociate(priv)) |
| ipw_associate(priv); |
| |
| return 0; |
| } |
| |
| static int ipw_wx_set_freq(struct net_device *dev, |
| struct iw_request_info *info, |
| union iwreq_data *wrqu, char *extra) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| const struct libipw_geo *geo = libipw_get_geo(priv->ieee); |
| struct iw_freq *fwrq = &wrqu->freq; |
| int ret = 0, i; |
| u8 channel, flags; |
| int band; |
| |
| if (fwrq->m == 0) { |
| IPW_DEBUG_WX("SET Freq/Channel -> any\n"); |
| mutex_lock(&priv->mutex); |
| ret = ipw_set_channel(priv, 0); |
| mutex_unlock(&priv->mutex); |
| return ret; |
| } |
| /* if setting by freq convert to channel */ |
| if (fwrq->e == 1) { |
| channel = libipw_freq_to_channel(priv->ieee, fwrq->m); |
| if (channel == 0) |
| return -EINVAL; |
| } else |
| channel = fwrq->m; |
| |
| if (!(band = libipw_is_valid_channel(priv->ieee, channel))) |
| return -EINVAL; |
| |
| if (priv->ieee->iw_mode == IW_MODE_ADHOC) { |
| i = libipw_channel_to_index(priv->ieee, channel); |
| if (i == -1) |
| return -EINVAL; |
| |
| flags = (band == LIBIPW_24GHZ_BAND) ? |
| geo->bg[i].flags : geo->a[i].flags; |
| if (flags & LIBIPW_CH_PASSIVE_ONLY) { |
| IPW_DEBUG_WX("Invalid Ad-Hoc channel for 802.11a\n"); |
| return -EINVAL; |
| } |
| } |
| |
| IPW_DEBUG_WX("SET Freq/Channel -> %d\n", fwrq->m); |
| mutex_lock(&priv->mutex); |
| ret = ipw_set_channel(priv, channel); |
| mutex_unlock(&priv->mutex); |
| return ret; |
| } |
| |
| static int ipw_wx_get_freq(struct net_device *dev, |
| struct iw_request_info *info, |
| union iwreq_data *wrqu, char *extra) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| |
| wrqu->freq.e = 0; |
| |
| /* If we are associated, trying to associate, or have a statically |
| * configured CHANNEL then return that; otherwise return ANY */ |
| mutex_lock(&priv->mutex); |
| if (priv->config & CFG_STATIC_CHANNEL || |
| priv->status & (STATUS_ASSOCIATING | STATUS_ASSOCIATED)) { |
| int i; |
| |
| i = libipw_channel_to_index(priv->ieee, priv->channel); |
| BUG_ON(i == -1); |
| wrqu->freq.e = 1; |
| |
| switch (libipw_is_valid_channel(priv->ieee, priv->channel)) { |
| case LIBIPW_52GHZ_BAND: |
| wrqu->freq.m = priv->ieee->geo.a[i].freq * 100000; |
| break; |
| |
| case LIBIPW_24GHZ_BAND: |
| wrqu->freq.m = priv->ieee->geo.bg[i].freq * 100000; |
| break; |
| |
| default: |
| BUG(); |
| } |
| } else |
| wrqu->freq.m = 0; |
| |
| mutex_unlock(&priv->mutex); |
| IPW_DEBUG_WX("GET Freq/Channel -> %d\n", priv->channel); |
| return 0; |
| } |
| |
| static int ipw_wx_set_mode(struct net_device *dev, |
| struct iw_request_info *info, |
| union iwreq_data *wrqu, char *extra) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| int err = 0; |
| |
| IPW_DEBUG_WX("Set MODE: %d\n", wrqu->mode); |
| |
| switch (wrqu->mode) { |
| #ifdef CONFIG_IPW2200_MONITOR |
| case IW_MODE_MONITOR: |
| #endif |
| case IW_MODE_ADHOC: |
| case IW_MODE_INFRA: |
| break; |
| case IW_MODE_AUTO: |
| wrqu->mode = IW_MODE_INFRA; |
| break; |
| default: |
| return -EINVAL; |
| } |
| if (wrqu->mode == priv->ieee->iw_mode) |
| return 0; |
| |
| mutex_lock(&priv->mutex); |
| |
| ipw_sw_reset(priv, 0); |
| |
| #ifdef CONFIG_IPW2200_MONITOR |
| if (priv->ieee->iw_mode == IW_MODE_MONITOR) |
| priv->net_dev->type = ARPHRD_ETHER; |
| |
| if (wrqu->mode == IW_MODE_MONITOR) |
| #ifdef CONFIG_IPW2200_RADIOTAP |
| priv->net_dev->type = ARPHRD_IEEE80211_RADIOTAP; |
| #else |
| priv->net_dev->type = ARPHRD_IEEE80211; |
| #endif |
| #endif /* CONFIG_IPW2200_MONITOR */ |
| |
| /* Free the existing firmware and reset the fw_loaded |
| * flag so ipw_load() will bring in the new firmware */ |
| free_firmware(); |
| |
| priv->ieee->iw_mode = wrqu->mode; |
| |
| schedule_work(&priv->adapter_restart); |
| mutex_unlock(&priv->mutex); |
| return err; |
| } |
| |
| static int ipw_wx_get_mode(struct net_device *dev, |
| struct iw_request_info *info, |
| union iwreq_data *wrqu, char *extra) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| mutex_lock(&priv->mutex); |
| wrqu->mode = priv->ieee->iw_mode; |
| IPW_DEBUG_WX("Get MODE -> %d\n", wrqu->mode); |
| mutex_unlock(&priv->mutex); |
| return 0; |
| } |
| |
| /* Values are in microsecond */ |
| static const s32 timeout_duration[] = { |
| 350000, |
| 250000, |
| 75000, |
| 37000, |
| 25000, |
| }; |
| |
| static const s32 period_duration[] = { |
| 400000, |
| 700000, |
| 1000000, |
| 1000000, |
| 1000000 |
| }; |
| |
| static int ipw_wx_get_range(struct net_device *dev, |
| struct iw_request_info *info, |
| union iwreq_data *wrqu, char *extra) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| struct iw_range *range = (struct iw_range *)extra; |
| const struct libipw_geo *geo = libipw_get_geo(priv->ieee); |
| int i = 0, j; |
| |
| wrqu->data.length = sizeof(*range); |
| memset(range, 0, sizeof(*range)); |
| |
| /* 54Mbs == ~27 Mb/s real (802.11g) */ |
| range->throughput = 27 * 1000 * 1000; |
| |
| range->max_qual.qual = 100; |
| /* TODO: Find real max RSSI and stick here */ |
| range->max_qual.level = 0; |
| range->max_qual.noise = 0; |
| range->max_qual.updated = 7; /* Updated all three */ |
| |
| range->avg_qual.qual = 70; |
| /* TODO: Find real 'good' to 'bad' threshold value for RSSI */ |
| range->avg_qual.level = 0; /* FIXME to real average level */ |
| range->avg_qual.noise = 0; |
| range->avg_qual.updated = 7; /* Updated all three */ |
| mutex_lock(&priv->mutex); |
| range->num_bitrates = min(priv->rates.num_rates, (u8) IW_MAX_BITRATES); |
| |
| for (i = 0; i < range->num_bitrates; i++) |
| range->bitrate[i] = (priv->rates.supported_rates[i] & 0x7F) * |
| 500000; |
| |
| range->max_rts = DEFAULT_RTS_THRESHOLD; |
| range->min_frag = MIN_FRAG_THRESHOLD; |
| range->max_frag = MAX_FRAG_THRESHOLD; |
| |
| range->encoding_size[0] = 5; |
| range->encoding_size[1] = 13; |
| range->num_encoding_sizes = 2; |
| range->max_encoding_tokens = WEP_KEYS; |
| |
| /* Set the Wireless Extension versions */ |
| range->we_version_compiled = WIRELESS_EXT; |
| range->we_version_source = 18; |
| |
| i = 0; |
| if (priv->ieee->mode & (IEEE_B | IEEE_G)) { |
| for (j = 0; j < geo->bg_channels && i < IW_MAX_FREQUENCIES; j++) { |
| if ((priv->ieee->iw_mode == IW_MODE_ADHOC) && |
| (geo->bg[j].flags & LIBIPW_CH_PASSIVE_ONLY)) |
| continue; |
| |
| range->freq[i].i = geo->bg[j].channel; |
| range->freq[i].m = geo->bg[j].freq * 100000; |
| range->freq[i].e = 1; |
| i++; |
| } |
| } |
| |
| if (priv->ieee->mode & IEEE_A) { |
| for (j = 0; j < geo->a_channels && i < IW_MAX_FREQUENCIES; j++) { |
| if ((priv->ieee->iw_mode == IW_MODE_ADHOC) && |
| (geo->a[j].flags & LIBIPW_CH_PASSIVE_ONLY)) |
| continue; |
| |
| range->freq[i].i = geo->a[j].channel; |
| range->freq[i].m = geo->a[j].freq * 100000; |
| range->freq[i].e = 1; |
| i++; |
| } |
| } |
| |
| range->num_channels = i; |
| range->num_frequency = i; |
| |
| mutex_unlock(&priv->mutex); |
| |
| /* Event capability (kernel + driver) */ |
| range->event_capa[0] = (IW_EVENT_CAPA_K_0 | |
| IW_EVENT_CAPA_MASK(SIOCGIWTHRSPY) | |
| IW_EVENT_CAPA_MASK(SIOCGIWAP) | |
| IW_EVENT_CAPA_MASK(SIOCGIWSCAN)); |
| range->event_capa[1] = IW_EVENT_CAPA_K_1; |
| |
| range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 | |
| IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP; |
| |
| range->scan_capa = IW_SCAN_CAPA_ESSID | IW_SCAN_CAPA_TYPE; |
| |
| IPW_DEBUG_WX("GET Range\n"); |
| return 0; |
| } |
| |
| static int ipw_wx_set_wap(struct net_device *dev, |
| struct iw_request_info *info, |
| union iwreq_data *wrqu, char *extra) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| |
| if (wrqu->ap_addr.sa_family != ARPHRD_ETHER) |
| return -EINVAL; |
| mutex_lock(&priv->mutex); |
| if (is_broadcast_ether_addr(wrqu->ap_addr.sa_data) || |
| is_zero_ether_addr(wrqu->ap_addr.sa_data)) { |
| /* we disable mandatory BSSID association */ |
| IPW_DEBUG_WX("Setting AP BSSID to ANY\n"); |
| priv->config &= ~CFG_STATIC_BSSID; |
| IPW_DEBUG_ASSOC("Attempting to associate with new " |
| "parameters.\n"); |
| ipw_associate(priv); |
| mutex_unlock(&priv->mutex); |
| return 0; |
| } |
| |
| priv->config |= CFG_STATIC_BSSID; |
| if (ether_addr_equal(priv->bssid, wrqu->ap_addr.sa_data)) { |
| IPW_DEBUG_WX("BSSID set to current BSSID.\n"); |
| mutex_unlock(&priv->mutex); |
| return 0; |
| } |
| |
| IPW_DEBUG_WX("Setting mandatory BSSID to %pM\n", |
| wrqu->ap_addr.sa_data); |
| |
| memcpy(priv->bssid, wrqu->ap_addr.sa_data, ETH_ALEN); |
| |
| /* Network configuration changed -- force [re]association */ |
| IPW_DEBUG_ASSOC("[re]association triggered due to BSSID change.\n"); |
| if (!ipw_disassociate(priv)) |
| ipw_associate(priv); |
| |
| mutex_unlock(&priv->mutex); |
| return 0; |
| } |
| |
| static int ipw_wx_get_wap(struct net_device *dev, |
| struct iw_request_info *info, |
| union iwreq_data *wrqu, char *extra) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| |
| /* If we are associated, trying to associate, or have a statically |
| * configured BSSID then return that; otherwise return ANY */ |
| mutex_lock(&priv->mutex); |
| if (priv->config & CFG_STATIC_BSSID || |
| priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) { |
| wrqu->ap_addr.sa_family = ARPHRD_ETHER; |
| memcpy(wrqu->ap_addr.sa_data, priv->bssid, ETH_ALEN); |
| } else |
| eth_zero_addr(wrqu->ap_addr.sa_data); |
| |
| IPW_DEBUG_WX("Getting WAP BSSID: %pM\n", |
| wrqu->ap_addr.sa_data); |
| mutex_unlock(&priv->mutex); |
| return 0; |
| } |
| |
| static int ipw_wx_set_essid(struct net_device *dev, |
| struct iw_request_info *info, |
| union iwreq_data *wrqu, char *extra) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| int length; |
| |
| mutex_lock(&priv->mutex); |
| |
| if (!wrqu->essid.flags) |
| { |
| IPW_DEBUG_WX("Setting ESSID to ANY\n"); |
| ipw_disassociate(priv); |
| priv->config &= ~CFG_STATIC_ESSID; |
| ipw_associate(priv); |
| mutex_unlock(&priv->mutex); |
| return 0; |
| } |
| |
| length = min((int)wrqu->essid.length, IW_ESSID_MAX_SIZE); |
| |
| priv->config |= CFG_STATIC_ESSID; |
| |
| if (priv->essid_len == length && !memcmp(priv->essid, extra, length) |
| && (priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING))) { |
| IPW_DEBUG_WX("ESSID set to current ESSID.\n"); |
| mutex_unlock(&priv->mutex); |
| return 0; |
| } |
| |
| IPW_DEBUG_WX("Setting ESSID: '%*pE' (%d)\n", length, extra, length); |
| |
| priv->essid_len = length; |
| memcpy(priv->essid, extra, priv->essid_len); |
| |
| /* Network configuration changed -- force [re]association */ |
| IPW_DEBUG_ASSOC("[re]association triggered due to ESSID change.\n"); |
| if (!ipw_disassociate(priv)) |
| ipw_associate(priv); |
| |
| mutex_unlock(&priv->mutex); |
| return 0; |
| } |
| |
| static int ipw_wx_get_essid(struct net_device *dev, |
| struct iw_request_info *info, |
| union iwreq_data *wrqu, char *extra) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| |
| /* If we are associated, trying to associate, or have a statically |
| * configured ESSID then return that; otherwise return ANY */ |
| mutex_lock(&priv->mutex); |
| if (priv->config & CFG_STATIC_ESSID || |
| priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) { |
| IPW_DEBUG_WX("Getting essid: '%*pE'\n", |
| priv->essid_len, priv->essid); |
| memcpy(extra, priv->essid, priv->essid_len); |
| wrqu->essid.length = priv->essid_len; |
| wrqu->essid.flags = 1; /* active */ |
| } else { |
| IPW_DEBUG_WX("Getting essid: ANY\n"); |
| wrqu->essid.length = 0; |
| wrqu->essid.flags = 0; /* active */ |
| } |
| mutex_unlock(&priv->mutex); |
| return 0; |
| } |
| |
| static int ipw_wx_set_nick(struct net_device *dev, |
| struct iw_request_info *info, |
| union iwreq_data *wrqu, char *extra) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| |
| IPW_DEBUG_WX("Setting nick to '%s'\n", extra); |
| if (wrqu->data.length > IW_ESSID_MAX_SIZE) |
| return -E2BIG; |
| mutex_lock(&priv->mutex); |
| wrqu->data.length = min_t(size_t, wrqu->data.length, sizeof(priv->nick)); |
| memset(priv->nick, 0, sizeof(priv->nick)); |
| memcpy(priv->nick, extra, wrqu->data.length); |
| IPW_DEBUG_TRACE("<<\n"); |
| mutex_unlock(&priv->mutex); |
| return 0; |
| |
| } |
| |
| static int ipw_wx_get_nick(struct net_device *dev, |
| struct iw_request_info *info, |
| union iwreq_data *wrqu, char *extra) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| IPW_DEBUG_WX("Getting nick\n"); |
| mutex_lock(&priv->mutex); |
| wrqu->data.length = strlen(priv->nick); |
| memcpy(extra, priv->nick, wrqu->data.length); |
| wrqu->data.flags = 1; /* active */ |
| mutex_unlock(&priv->mutex); |
| return 0; |
| } |
| |
| static int ipw_wx_set_sens(struct net_device *dev, |
| struct iw_request_info *info, |
| union iwreq_data *wrqu, char *extra) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| int err = 0; |
| |
| IPW_DEBUG_WX("Setting roaming threshold to %d\n", wrqu->sens.value); |
| IPW_DEBUG_WX("Setting disassociate threshold to %d\n", 3*wrqu->sens.value); |
| mutex_lock(&priv->mutex); |
| |
| if (wrqu->sens.fixed == 0) |
| { |
| priv->roaming_threshold = IPW_MB_ROAMING_THRESHOLD_DEFAULT; |
| priv->disassociate_threshold = IPW_MB_DISASSOCIATE_THRESHOLD_DEFAULT; |
| goto out; |
| } |
| if ((wrqu->sens.value > IPW_MB_ROAMING_THRESHOLD_MAX) || |
| (wrqu->sens.value < IPW_MB_ROAMING_THRESHOLD_MIN)) { |
| err = -EINVAL; |
| goto out; |
| } |
| |
| priv->roaming_threshold = wrqu->sens.value; |
| priv->disassociate_threshold = 3*wrqu->sens.value; |
| out: |
| mutex_unlock(&priv->mutex); |
| return err; |
| } |
| |
| static int ipw_wx_get_sens(struct net_device *dev, |
| struct iw_request_info *info, |
| union iwreq_data *wrqu, char *extra) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| mutex_lock(&priv->mutex); |
| wrqu->sens.fixed = 1; |
| wrqu->sens.value = priv->roaming_threshold; |
| mutex_unlock(&priv->mutex); |
| |
| IPW_DEBUG_WX("GET roaming threshold -> %s %d\n", |
| wrqu->power.disabled ? "OFF" : "ON", wrqu->power.value); |
| |
| return 0; |
| } |
| |
| static int ipw_wx_set_rate(struct net_device *dev, |
| struct iw_request_info *info, |
| union iwreq_data *wrqu, char *extra) |
| { |
| /* TODO: We should use semaphores or locks for access to priv */ |
| struct ipw_priv *priv = libipw_priv(dev); |
| u32 target_rate = wrqu->bitrate.value; |
| u32 fixed, mask; |
| |
| /* value = -1, fixed = 0 means auto only, so we should use all rates offered by AP */ |
| /* value = X, fixed = 1 means only rate X */ |
| /* value = X, fixed = 0 means all rates lower equal X */ |
| |
| if (target_rate == -1) { |
| fixed = 0; |
| mask = LIBIPW_DEFAULT_RATES_MASK; |
| /* Now we should reassociate */ |
| goto apply; |
| } |
| |
| mask = 0; |
| fixed = wrqu->bitrate.fixed; |
| |
| if (target_rate == 1000000 || !fixed) |
| mask |= LIBIPW_CCK_RATE_1MB_MASK; |
| if (target_rate == 1000000) |
| goto apply; |
| |
| if (target_rate == 2000000 || !fixed) |
| mask |= LIBIPW_CCK_RATE_2MB_MASK; |
| if (target_rate == 2000000) |
| goto apply; |
| |
| if (target_rate == 5500000 || !fixed) |
| mask |= LIBIPW_CCK_RATE_5MB_MASK; |
| if (target_rate == 5500000) |
| goto apply; |
| |
| if (target_rate == 6000000 || !fixed) |
| mask |= LIBIPW_OFDM_RATE_6MB_MASK; |
| if (target_rate == 6000000) |
| goto apply; |
| |
| if (target_rate == 9000000 || !fixed) |
| mask |= LIBIPW_OFDM_RATE_9MB_MASK; |
| if (target_rate == 9000000) |
| goto apply; |
| |
| if (target_rate == 11000000 || !fixed) |
| mask |= LIBIPW_CCK_RATE_11MB_MASK; |
| if (target_rate == 11000000) |
| goto apply; |
| |
| if (target_rate == 12000000 || !fixed) |
| mask |= LIBIPW_OFDM_RATE_12MB_MASK; |
| if (target_rate == 12000000) |
| goto apply; |
| |
| if (target_rate == 18000000 || !fixed) |
| mask |= LIBIPW_OFDM_RATE_18MB_MASK; |
| if (target_rate == 18000000) |
| goto apply; |
| |
| if (target_rate == 24000000 || !fixed) |
| mask |= LIBIPW_OFDM_RATE_24MB_MASK; |
| if (target_rate == 24000000) |
| goto apply; |
| |
| if (target_rate == 36000000 || !fixed) |
| mask |= LIBIPW_OFDM_RATE_36MB_MASK; |
| if (target_rate == 36000000) |
| goto apply; |
| |
| if (target_rate == 48000000 || !fixed) |
| mask |= LIBIPW_OFDM_RATE_48MB_MASK; |
| if (target_rate == 48000000) |
| goto apply; |
| |
| if (target_rate == 54000000 || !fixed) |
| mask |= LIBIPW_OFDM_RATE_54MB_MASK; |
| if (target_rate == 54000000) |
| goto apply; |
| |
| IPW_DEBUG_WX("invalid rate specified, returning error\n"); |
| return -EINVAL; |
| |
| apply: |
| IPW_DEBUG_WX("Setting rate mask to 0x%08X [%s]\n", |
| mask, fixed ? "fixed" : "sub-rates"); |
| mutex_lock(&priv->mutex); |
| if (mask == LIBIPW_DEFAULT_RATES_MASK) { |
| priv->config &= ~CFG_FIXED_RATE; |
| ipw_set_fixed_rate(priv, priv->ieee->mode); |
| } else |
| priv->config |= CFG_FIXED_RATE; |
| |
| if (priv->rates_mask == mask) { |
| IPW_DEBUG_WX("Mask set to current mask.\n"); |
| mutex_unlock(&priv->mutex); |
| return 0; |
| } |
| |
| priv->rates_mask = mask; |
| |
| /* Network configuration changed -- force [re]association */ |
| IPW_DEBUG_ASSOC("[re]association triggered due to rates change.\n"); |
| if (!ipw_disassociate(priv)) |
| ipw_associate(priv); |
| |
| mutex_unlock(&priv->mutex); |
| return 0; |
| } |
| |
| static int ipw_wx_get_rate(struct net_device *dev, |
| struct iw_request_info *info, |
| union iwreq_data *wrqu, char *extra) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| mutex_lock(&priv->mutex); |
| wrqu->bitrate.value = priv->last_rate; |
| wrqu->bitrate.fixed = (priv->config & CFG_FIXED_RATE) ? 1 : 0; |
| mutex_unlock(&priv->mutex); |
| IPW_DEBUG_WX("GET Rate -> %d\n", wrqu->bitrate.value); |
| return 0; |
| } |
| |
| static int ipw_wx_set_rts(struct net_device *dev, |
| struct iw_request_info *info, |
| union iwreq_data *wrqu, char *extra) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| mutex_lock(&priv->mutex); |
| if (wrqu->rts.disabled || !wrqu->rts.fixed) |
| priv->rts_threshold = DEFAULT_RTS_THRESHOLD; |
| else { |
| if (wrqu->rts.value < MIN_RTS_THRESHOLD || |
| wrqu->rts.value > MAX_RTS_THRESHOLD) { |
| mutex_unlock(&priv->mutex); |
| return -EINVAL; |
| } |
| priv->rts_threshold = wrqu->rts.value; |
| } |
| |
| ipw_send_rts_threshold(priv, priv->rts_threshold); |
| mutex_unlock(&priv->mutex); |
| IPW_DEBUG_WX("SET RTS Threshold -> %d\n", priv->rts_threshold); |
| return 0; |
| } |
| |
| static int ipw_wx_get_rts(struct net_device *dev, |
| struct iw_request_info *info, |
| union iwreq_data *wrqu, char *extra) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| mutex_lock(&priv->mutex); |
| wrqu->rts.value = priv->rts_threshold; |
| wrqu->rts.fixed = 0; /* no auto select */ |
| wrqu->rts.disabled = (wrqu->rts.value == DEFAULT_RTS_THRESHOLD); |
| mutex_unlock(&priv->mutex); |
| IPW_DEBUG_WX("GET RTS Threshold -> %d\n", wrqu->rts.value); |
| return 0; |
| } |
| |
| static int ipw_wx_set_txpow(struct net_device *dev, |
| struct iw_request_info *info, |
| union iwreq_data *wrqu, char *extra) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| int err = 0; |
| |
| mutex_lock(&priv->mutex); |
| if (ipw_radio_kill_sw(priv, wrqu->power.disabled)) { |
| err = -EINPROGRESS; |
| goto out; |
| } |
| |
| if (!wrqu->power.fixed) |
| wrqu->power.value = IPW_TX_POWER_DEFAULT; |
| |
| if (wrqu->power.flags != IW_TXPOW_DBM) { |
| err = -EINVAL; |
| goto out; |
| } |
| |
| if ((wrqu->power.value > IPW_TX_POWER_MAX) || |
| (wrqu->power.value < IPW_TX_POWER_MIN)) { |
| err = -EINVAL; |
| goto out; |
| } |
| |
| priv->tx_power = wrqu->power.value; |
| err = ipw_set_tx_power(priv); |
| out: |
| mutex_unlock(&priv->mutex); |
| return err; |
| } |
| |
| static int ipw_wx_get_txpow(struct net_device *dev, |
| struct iw_request_info *info, |
| union iwreq_data *wrqu, char *extra) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| mutex_lock(&priv->mutex); |
| wrqu->power.value = priv->tx_power; |
| wrqu->power.fixed = 1; |
| wrqu->power.flags = IW_TXPOW_DBM; |
| wrqu->power.disabled = (priv->status & STATUS_RF_KILL_MASK) ? 1 : 0; |
| mutex_unlock(&priv->mutex); |
| |
| IPW_DEBUG_WX("GET TX Power -> %s %d\n", |
| wrqu->power.disabled ? "OFF" : "ON", wrqu->power.value); |
| |
| return 0; |
| } |
| |
| static int ipw_wx_set_frag(struct net_device *dev, |
| struct iw_request_info *info, |
| union iwreq_data *wrqu, char *extra) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| mutex_lock(&priv->mutex); |
| if (wrqu->frag.disabled || !wrqu->frag.fixed) |
| priv->ieee->fts = DEFAULT_FTS; |
| else { |
| if (wrqu->frag.value < MIN_FRAG_THRESHOLD || |
| wrqu->frag.value > MAX_FRAG_THRESHOLD) { |
| mutex_unlock(&priv->mutex); |
| return -EINVAL; |
| } |
| |
| priv->ieee->fts = wrqu->frag.value & ~0x1; |
| } |
| |
| ipw_send_frag_threshold(priv, wrqu->frag.value); |
| mutex_unlock(&priv->mutex); |
| IPW_DEBUG_WX("SET Frag Threshold -> %d\n", wrqu->frag.value); |
| return 0; |
| } |
| |
| static int ipw_wx_get_frag(struct net_device *dev, |
| struct iw_request_info *info, |
| union iwreq_data *wrqu, char *extra) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| mutex_lock(&priv->mutex); |
| wrqu->frag.value = priv->ieee->fts; |
| wrqu->frag.fixed = 0; /* no auto select */ |
| wrqu->frag.disabled = (wrqu->frag.value == DEFAULT_FTS); |
| mutex_unlock(&priv->mutex); |
| IPW_DEBUG_WX("GET Frag Threshold -> %d\n", wrqu->frag.value); |
| |
| return 0; |
| } |
| |
| static int ipw_wx_set_retry(struct net_device *dev, |
| struct iw_request_info *info, |
| union iwreq_data *wrqu, char *extra) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| |
| if (wrqu->retry.flags & IW_RETRY_LIFETIME || wrqu->retry.disabled) |
| return -EINVAL; |
| |
| if (!(wrqu->retry.flags & IW_RETRY_LIMIT)) |
| return 0; |
| |
| if (wrqu->retry.value < 0 || wrqu->retry.value >= 255) |
| return -EINVAL; |
| |
| mutex_lock(&priv->mutex); |
| if (wrqu->retry.flags & IW_RETRY_SHORT) |
| priv->short_retry_limit = (u8) wrqu->retry.value; |
| else if (wrqu->retry.flags & IW_RETRY_LONG) |
| priv->long_retry_limit = (u8) wrqu->retry.value; |
| else { |
| priv->short_retry_limit = (u8) wrqu->retry.value; |
| priv->long_retry_limit = (u8) wrqu->retry.value; |
| } |
| |
| ipw_send_retry_limit(priv, priv->short_retry_limit, |
| priv->long_retry_limit); |
| mutex_unlock(&priv->mutex); |
| IPW_DEBUG_WX("SET retry limit -> short:%d long:%d\n", |
| priv->short_retry_limit, priv->long_retry_limit); |
| return 0; |
| } |
| |
| static int ipw_wx_get_retry(struct net_device *dev, |
| struct iw_request_info *info, |
| union iwreq_data *wrqu, char *extra) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| |
| mutex_lock(&priv->mutex); |
| wrqu->retry.disabled = 0; |
| |
| if ((wrqu->retry.flags & IW_RETRY_TYPE) == IW_RETRY_LIFETIME) { |
| mutex_unlock(&priv->mutex); |
| return -EINVAL; |
| } |
| |
| if (wrqu->retry.flags & IW_RETRY_LONG) { |
| wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_LONG; |
| wrqu->retry.value = priv->long_retry_limit; |
| } else if (wrqu->retry.flags & IW_RETRY_SHORT) { |
| wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_SHORT; |
| wrqu->retry.value = priv->short_retry_limit; |
| } else { |
| wrqu->retry.flags = IW_RETRY_LIMIT; |
| wrqu->retry.value = priv->short_retry_limit; |
| } |
| mutex_unlock(&priv->mutex); |
| |
| IPW_DEBUG_WX("GET retry -> %d\n", wrqu->retry.value); |
| |
| return 0; |
| } |
| |
| static int ipw_wx_set_scan(struct net_device *dev, |
| struct iw_request_info *info, |
| union iwreq_data *wrqu, char *extra) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| struct iw_scan_req *req = (struct iw_scan_req *)extra; |
| struct delayed_work *work = NULL; |
| |
| mutex_lock(&priv->mutex); |
| |
| priv->user_requested_scan = 1; |
| |
| if (wrqu->data.length == sizeof(struct iw_scan_req)) { |
| if (wrqu->data.flags & IW_SCAN_THIS_ESSID) { |
| int len = min((int)req->essid_len, |
| (int)sizeof(priv->direct_scan_ssid)); |
| memcpy(priv->direct_scan_ssid, req->essid, len); |
| priv->direct_scan_ssid_len = len; |
| work = &priv->request_direct_scan; |
| } else if (req->scan_type == IW_SCAN_TYPE_PASSIVE) { |
| work = &priv->request_passive_scan; |
| } |
| } else { |
| /* Normal active broadcast scan */ |
| work = &priv->request_scan; |
| } |
| |
| mutex_unlock(&priv->mutex); |
| |
| IPW_DEBUG_WX("Start scan\n"); |
| |
| schedule_delayed_work(work, 0); |
| |
| return 0; |
| } |
| |
| static int ipw_wx_get_scan(struct net_device *dev, |
| struct iw_request_info *info, |
| union iwreq_data *wrqu, char *extra) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| return libipw_wx_get_scan(priv->ieee, info, wrqu, extra); |
| } |
| |
| static int ipw_wx_set_encode(struct net_device *dev, |
| struct iw_request_info *info, |
| union iwreq_data *wrqu, char *key) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| int ret; |
| u32 cap = priv->capability; |
| |
| mutex_lock(&priv->mutex); |
| ret = libipw_wx_set_encode(priv->ieee, info, wrqu, key); |
| |
| /* In IBSS mode, we need to notify the firmware to update |
| * the beacon info after we changed the capability. */ |
| if (cap != priv->capability && |
| priv->ieee->iw_mode == IW_MODE_ADHOC && |
| priv->status & STATUS_ASSOCIATED) |
| ipw_disassociate(priv); |
| |
| mutex_unlock(&priv->mutex); |
| return ret; |
| } |
| |
| static int ipw_wx_get_encode(struct net_device *dev, |
| struct iw_request_info *info, |
| union iwreq_data *wrqu, char *key) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| return libipw_wx_get_encode(priv->ieee, info, wrqu, key); |
| } |
| |
| static int ipw_wx_set_power(struct net_device *dev, |
| struct iw_request_info *info, |
| union iwreq_data *wrqu, char *extra) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| int err; |
| mutex_lock(&priv->mutex); |
| if (wrqu->power.disabled) { |
| priv->power_mode = IPW_POWER_LEVEL(priv->power_mode); |
| err = ipw_send_power_mode(priv, IPW_POWER_MODE_CAM); |
| if (err) { |
| IPW_DEBUG_WX("failed setting power mode.\n"); |
| mutex_unlock(&priv->mutex); |
| return err; |
| } |
| IPW_DEBUG_WX("SET Power Management Mode -> off\n"); |
| mutex_unlock(&priv->mutex); |
| return 0; |
| } |
| |
| switch (wrqu->power.flags & IW_POWER_MODE) { |
| case IW_POWER_ON: /* If not specified */ |
| case IW_POWER_MODE: /* If set all mask */ |
| case IW_POWER_ALL_R: /* If explicitly state all */ |
| break; |
| default: /* Otherwise we don't support it */ |
| IPW_DEBUG_WX("SET PM Mode: %X not supported.\n", |
| wrqu->power.flags); |
| mutex_unlock(&priv->mutex); |
| return -EOPNOTSUPP; |
| } |
| |
| /* If the user hasn't specified a power management mode yet, default |
| * to BATTERY */ |
| if (IPW_POWER_LEVEL(priv->power_mode) == IPW_POWER_AC) |
| priv->power_mode = IPW_POWER_ENABLED | IPW_POWER_BATTERY; |
| else |
| priv->power_mode = IPW_POWER_ENABLED | priv->power_mode; |
| |
| err = ipw_send_power_mode(priv, IPW_POWER_LEVEL(priv->power_mode)); |
| if (err) { |
| IPW_DEBUG_WX("failed setting power mode.\n"); |
| mutex_unlock(&priv->mutex); |
| return err; |
| } |
| |
| IPW_DEBUG_WX("SET Power Management Mode -> 0x%02X\n", priv->power_mode); |
| mutex_unlock(&priv->mutex); |
| return 0; |
| } |
| |
| static int ipw_wx_get_power(struct net_device *dev, |
| struct iw_request_info *info, |
| union iwreq_data *wrqu, char *extra) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| mutex_lock(&priv->mutex); |
| if (!(priv->power_mode & IPW_POWER_ENABLED)) |
| wrqu->power.disabled = 1; |
| else |
| wrqu->power.disabled = 0; |
| |
| mutex_unlock(&priv->mutex); |
| IPW_DEBUG_WX("GET Power Management Mode -> %02X\n", priv->power_mode); |
| |
| return 0; |
| } |
| |
| static int ipw_wx_set_powermode(struct net_device *dev, |
| struct iw_request_info *info, |
| union iwreq_data *wrqu, char *extra) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| int mode = *(int *)extra; |
| int err; |
| |
| mutex_lock(&priv->mutex); |
| if ((mode < 1) || (mode > IPW_POWER_LIMIT)) |
| mode = IPW_POWER_AC; |
| |
| if (IPW_POWER_LEVEL(priv->power_mode) != mode) { |
| err = ipw_send_power_mode(priv, mode); |
| if (err) { |
| IPW_DEBUG_WX("failed setting power mode.\n"); |
| mutex_unlock(&priv->mutex); |
| return err; |
| } |
| priv->power_mode = IPW_POWER_ENABLED | mode; |
| } |
| mutex_unlock(&priv->mutex); |
| return 0; |
| } |
| |
| #define MAX_WX_STRING 80 |
| static int ipw_wx_get_powermode(struct net_device *dev, |
| struct iw_request_info *info, |
| union iwreq_data *wrqu, char *extra) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| int level = IPW_POWER_LEVEL(priv->power_mode); |
| char *p = extra; |
| |
| p += snprintf(p, MAX_WX_STRING, "Power save level: %d ", level); |
| |
| switch (level) { |
| case IPW_POWER_AC: |
| p += snprintf(p, MAX_WX_STRING - (p - extra), "(AC)"); |
| break; |
| case IPW_POWER_BATTERY: |
| p += snprintf(p, MAX_WX_STRING - (p - extra), "(BATTERY)"); |
| break; |
| default: |
| p += snprintf(p, MAX_WX_STRING - (p - extra), |
| "(Timeout %dms, Period %dms)", |
| timeout_duration[level - 1] / 1000, |
| period_duration[level - 1] / 1000); |
| } |
| |
| if (!(priv->power_mode & IPW_POWER_ENABLED)) |
| p += snprintf(p, MAX_WX_STRING - (p - extra), " OFF"); |
| |
| wrqu->data.length = p - extra + 1; |
| |
| return 0; |
| } |
| |
| static int ipw_wx_set_wireless_mode(struct net_device *dev, |
| struct iw_request_info *info, |
| union iwreq_data *wrqu, char *extra) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| int mode = *(int *)extra; |
| u8 band = 0, modulation = 0; |
| |
| if (mode == 0 || mode & ~IEEE_MODE_MASK) { |
| IPW_WARNING("Attempt to set invalid wireless mode: %d\n", mode); |
| return -EINVAL; |
| } |
| mutex_lock(&priv->mutex); |
| if (priv->adapter == IPW_2915ABG) { |
| priv->ieee->abg_true = 1; |
| if (mode & IEEE_A) { |
| band |= LIBIPW_52GHZ_BAND; |
| modulation |= LIBIPW_OFDM_MODULATION; |
| } else |
| priv->ieee->abg_true = 0; |
| } else { |
| if (mode & IEEE_A) { |
| IPW_WARNING("Attempt to set 2200BG into " |
| "802.11a mode\n"); |
| mutex_unlock(&priv->mutex); |
| return -EINVAL; |
| } |
| |
| priv->ieee->abg_true = 0; |
| } |
| |
| if (mode & IEEE_B) { |
| band |= LIBIPW_24GHZ_BAND; |
| modulation |= LIBIPW_CCK_MODULATION; |
| } else |
| priv->ieee->abg_true = 0; |
| |
| if (mode & IEEE_G) { |
| band |= LIBIPW_24GHZ_BAND; |
| modulation |= LIBIPW_OFDM_MODULATION; |
| } else |
| priv->ieee->abg_true = 0; |
| |
| priv->ieee->mode = mode; |
| priv->ieee->freq_band = band; |
| priv->ieee->modulation = modulation; |
| init_supported_rates(priv, &priv->rates); |
| |
| /* Network configuration changed -- force [re]association */ |
| IPW_DEBUG_ASSOC("[re]association triggered due to mode change.\n"); |
| if (!ipw_disassociate(priv)) { |
| ipw_send_supported_rates(priv, &priv->rates); |
| ipw_associate(priv); |
| } |
| |
| /* Update the band LEDs */ |
| ipw_led_band_on(priv); |
| |
| IPW_DEBUG_WX("PRIV SET MODE: %c%c%c\n", |
| mode & IEEE_A ? 'a' : '.', |
| mode & IEEE_B ? 'b' : '.', mode & IEEE_G ? 'g' : '.'); |
| mutex_unlock(&priv->mutex); |
| return 0; |
| } |
| |
| static int ipw_wx_get_wireless_mode(struct net_device *dev, |
| struct iw_request_info *info, |
| union iwreq_data *wrqu, char *extra) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| mutex_lock(&priv->mutex); |
| switch (priv->ieee->mode) { |
| case IEEE_A: |
| strncpy(extra, "802.11a (1)", MAX_WX_STRING); |
| break; |
| case IEEE_B: |
| strncpy(extra, "802.11b (2)", MAX_WX_STRING); |
| break; |
| case IEEE_A | IEEE_B: |
| strncpy(extra, "802.11ab (3)", MAX_WX_STRING); |
| break; |
| case IEEE_G: |
| strncpy(extra, "802.11g (4)", MAX_WX_STRING); |
| break; |
| case IEEE_A | IEEE_G: |
| strncpy(extra, "802.11ag (5)", MAX_WX_STRING); |
| break; |
| case IEEE_B | IEEE_G: |
| strncpy(extra, "802.11bg (6)", MAX_WX_STRING); |
| break; |
| case IEEE_A | IEEE_B | IEEE_G: |
| strncpy(extra, "802.11abg (7)", MAX_WX_STRING); |
| break; |
| default: |
| strncpy(extra, "unknown", MAX_WX_STRING); |
| break; |
| } |
| extra[MAX_WX_STRING - 1] = '\0'; |
| |
| IPW_DEBUG_WX("PRIV GET MODE: %s\n", extra); |
| |
| wrqu->data.length = strlen(extra) + 1; |
| mutex_unlock(&priv->mutex); |
| |
| return 0; |
| } |
| |
| static int ipw_wx_set_preamble(struct net_device *dev, |
| struct iw_request_info *info, |
| union iwreq_data *wrqu, char *extra) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| int mode = *(int *)extra; |
| mutex_lock(&priv->mutex); |
| /* Switching from SHORT -> LONG requires a disassociation */ |
| if (mode == 1) { |
| if (!(priv->config & CFG_PREAMBLE_LONG)) { |
| priv->config |= CFG_PREAMBLE_LONG; |
| |
| /* Network configuration changed -- force [re]association */ |
| IPW_DEBUG_ASSOC |
| ("[re]association triggered due to preamble change.\n"); |
| if (!ipw_disassociate(priv)) |
| ipw_associate(priv); |
| } |
| goto done; |
| } |
| |
| if (mode == 0) { |
| priv->config &= ~CFG_PREAMBLE_LONG; |
| goto done; |
| } |
| mutex_unlock(&priv->mutex); |
| return -EINVAL; |
| |
| done: |
| mutex_unlock(&priv->mutex); |
| return 0; |
| } |
| |
| static int ipw_wx_get_preamble(struct net_device *dev, |
| struct iw_request_info *info, |
| union iwreq_data *wrqu, char *extra) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| mutex_lock(&priv->mutex); |
| if (priv->config & CFG_PREAMBLE_LONG) |
| snprintf(wrqu->name, IFNAMSIZ, "long (1)"); |
| else |
| snprintf(wrqu->name, IFNAMSIZ, "auto (0)"); |
| mutex_unlock(&priv->mutex); |
| return 0; |
| } |
| |
| #ifdef CONFIG_IPW2200_MONITOR |
| static int ipw_wx_set_monitor(struct net_device *dev, |
| struct iw_request_info *info, |
| union iwreq_data *wrqu, char *extra) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| int *parms = (int *)extra; |
| int enable = (parms[0] > 0); |
| mutex_lock(&priv->mutex); |
| IPW_DEBUG_WX("SET MONITOR: %d %d\n", enable, parms[1]); |
| if (enable) { |
| if (priv->ieee->iw_mode != IW_MODE_MONITOR) { |
| #ifdef CONFIG_IPW2200_RADIOTAP |
| priv->net_dev->type = ARPHRD_IEEE80211_RADIOTAP; |
| #else |
| priv->net_dev->type = ARPHRD_IEEE80211; |
| #endif |
| schedule_work(&priv->adapter_restart); |
| } |
| |
| ipw_set_channel(priv, parms[1]); |
| } else { |
| if (priv->ieee->iw_mode != IW_MODE_MONITOR) { |
| mutex_unlock(&priv->mutex); |
| return 0; |
| } |
| priv->net_dev->type = ARPHRD_ETHER; |
| schedule_work(&priv->adapter_restart); |
| } |
| mutex_unlock(&priv->mutex); |
| return 0; |
| } |
| |
| #endif /* CONFIG_IPW2200_MONITOR */ |
| |
| static int ipw_wx_reset(struct net_device *dev, |
| struct iw_request_info *info, |
| union iwreq_data *wrqu, char *extra) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| IPW_DEBUG_WX("RESET\n"); |
| schedule_work(&priv->adapter_restart); |
| return 0; |
| } |
| |
| static int ipw_wx_sw_reset(struct net_device *dev, |
| struct iw_request_info *info, |
| union iwreq_data *wrqu, char *extra) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| union iwreq_data wrqu_sec = { |
| .encoding = { |
| .flags = IW_ENCODE_DISABLED, |
| }, |
| }; |
| int ret; |
| |
| IPW_DEBUG_WX("SW_RESET\n"); |
| |
| mutex_lock(&priv->mutex); |
| |
| ret = ipw_sw_reset(priv, 2); |
| if (!ret) { |
| free_firmware(); |
| ipw_adapter_restart(priv); |
| } |
| |
| /* The SW reset bit might have been toggled on by the 'disable' |
| * module parameter, so take appropriate action */ |
| ipw_radio_kill_sw(priv, priv->status & STATUS_RF_KILL_SW); |
| |
| mutex_unlock(&priv->mutex); |
| libipw_wx_set_encode(priv->ieee, info, &wrqu_sec, NULL); |
| mutex_lock(&priv->mutex); |
| |
| if (!(priv->status & STATUS_RF_KILL_MASK)) { |
| /* Configuration likely changed -- force [re]association */ |
| IPW_DEBUG_ASSOC("[re]association triggered due to sw " |
| "reset.\n"); |
| if (!ipw_disassociate(priv)) |
| ipw_associate(priv); |
| } |
| |
| mutex_unlock(&priv->mutex); |
| |
| return 0; |
| } |
| |
| /* Rebase the WE IOCTLs to zero for the handler array */ |
| static iw_handler ipw_wx_handlers[] = { |
| IW_HANDLER(SIOCGIWNAME, (iw_handler)cfg80211_wext_giwname), |
| IW_HANDLER(SIOCSIWFREQ, ipw_wx_set_freq), |
| IW_HANDLER(SIOCGIWFREQ, ipw_wx_get_freq), |
| IW_HANDLER(SIOCSIWMODE, ipw_wx_set_mode), |
| IW_HANDLER(SIOCGIWMODE, ipw_wx_get_mode), |
| IW_HANDLER(SIOCSIWSENS, ipw_wx_set_sens), |
| IW_HANDLER(SIOCGIWSENS, ipw_wx_get_sens), |
| IW_HANDLER(SIOCGIWRANGE, ipw_wx_get_range), |
| IW_HANDLER(SIOCSIWAP, ipw_wx_set_wap), |
| IW_HANDLER(SIOCGIWAP, ipw_wx_get_wap), |
| IW_HANDLER(SIOCSIWSCAN, ipw_wx_set_scan), |
| IW_HANDLER(SIOCGIWSCAN, ipw_wx_get_scan), |
| IW_HANDLER(SIOCSIWESSID, ipw_wx_set_essid), |
| IW_HANDLER(SIOCGIWESSID, ipw_wx_get_essid), |
| IW_HANDLER(SIOCSIWNICKN, ipw_wx_set_nick), |
| IW_HANDLER(SIOCGIWNICKN, ipw_wx_get_nick), |
| IW_HANDLER(SIOCSIWRATE, ipw_wx_set_rate), |
| IW_HANDLER(SIOCGIWRATE, ipw_wx_get_rate), |
| IW_HANDLER(SIOCSIWRTS, ipw_wx_set_rts), |
| IW_HANDLER(SIOCGIWRTS, ipw_wx_get_rts), |
| IW_HANDLER(SIOCSIWFRAG, ipw_wx_set_frag), |
| IW_HANDLER(SIOCGIWFRAG, ipw_wx_get_frag), |
| IW_HANDLER(SIOCSIWTXPOW, ipw_wx_set_txpow), |
| IW_HANDLER(SIOCGIWTXPOW, ipw_wx_get_txpow), |
| IW_HANDLER(SIOCSIWRETRY, ipw_wx_set_retry), |
| IW_HANDLER(SIOCGIWRETRY, ipw_wx_get_retry), |
| IW_HANDLER(SIOCSIWENCODE, ipw_wx_set_encode), |
| IW_HANDLER(SIOCGIWENCODE, ipw_wx_get_encode), |
| IW_HANDLER(SIOCSIWPOWER, ipw_wx_set_power), |
| IW_HANDLER(SIOCGIWPOWER, ipw_wx_get_power), |
| IW_HANDLER(SIOCSIWSPY, iw_handler_set_spy), |
| IW_HANDLER(SIOCGIWSPY, iw_handler_get_spy), |
| IW_HANDLER(SIOCSIWTHRSPY, iw_handler_set_thrspy), |
| IW_HANDLER(SIOCGIWTHRSPY, iw_handler_get_thrspy), |
| IW_HANDLER(SIOCSIWGENIE, ipw_wx_set_genie), |
| IW_HANDLER(SIOCGIWGENIE, ipw_wx_get_genie), |
| IW_HANDLER(SIOCSIWMLME, ipw_wx_set_mlme), |
| IW_HANDLER(SIOCSIWAUTH, ipw_wx_set_auth), |
| IW_HANDLER(SIOCGIWAUTH, ipw_wx_get_auth), |
| IW_HANDLER(SIOCSIWENCODEEXT, ipw_wx_set_encodeext), |
| IW_HANDLER(SIOCGIWENCODEEXT, ipw_wx_get_encodeext), |
| }; |
| |
| enum { |
| IPW_PRIV_SET_POWER = SIOCIWFIRSTPRIV, |
| IPW_PRIV_GET_POWER, |
| IPW_PRIV_SET_MODE, |
| IPW_PRIV_GET_MODE, |
| IPW_PRIV_SET_PREAMBLE, |
| IPW_PRIV_GET_PREAMBLE, |
| IPW_PRIV_RESET, |
| IPW_PRIV_SW_RESET, |
| #ifdef CONFIG_IPW2200_MONITOR |
| IPW_PRIV_SET_MONITOR, |
| #endif |
| }; |
| |
| static struct iw_priv_args ipw_priv_args[] = { |
| { |
| .cmd = IPW_PRIV_SET_POWER, |
| .set_args = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, |
| .name = "set_power"}, |
| { |
| .cmd = IPW_PRIV_GET_POWER, |
| .get_args = IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | MAX_WX_STRING, |
| .name = "get_power"}, |
| { |
| .cmd = IPW_PRIV_SET_MODE, |
| .set_args = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, |
| .name = "set_mode"}, |
| { |
| .cmd = IPW_PRIV_GET_MODE, |
| .get_args = IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | MAX_WX_STRING, |
| .name = "get_mode"}, |
| { |
| .cmd = IPW_PRIV_SET_PREAMBLE, |
| .set_args = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, |
| .name = "set_preamble"}, |
| { |
| .cmd = IPW_PRIV_GET_PREAMBLE, |
| .get_args = IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | IFNAMSIZ, |
| .name = "get_preamble"}, |
| { |
| IPW_PRIV_RESET, |
| IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 0, 0, "reset"}, |
| { |
| IPW_PRIV_SW_RESET, |
| IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 0, 0, "sw_reset"}, |
| #ifdef CONFIG_IPW2200_MONITOR |
| { |
| IPW_PRIV_SET_MONITOR, |
| IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, 0, "monitor"}, |
| #endif /* CONFIG_IPW2200_MONITOR */ |
| }; |
| |
| static iw_handler ipw_priv_handler[] = { |
| ipw_wx_set_powermode, |
| ipw_wx_get_powermode, |
| ipw_wx_set_wireless_mode, |
| ipw_wx_get_wireless_mode, |
| ipw_wx_set_preamble, |
| ipw_wx_get_preamble, |
| ipw_wx_reset, |
| ipw_wx_sw_reset, |
| #ifdef CONFIG_IPW2200_MONITOR |
| ipw_wx_set_monitor, |
| #endif |
| }; |
| |
| static const struct iw_handler_def ipw_wx_handler_def = { |
| .standard = ipw_wx_handlers, |
| .num_standard = ARRAY_SIZE(ipw_wx_handlers), |
| .num_private = ARRAY_SIZE(ipw_priv_handler), |
| .num_private_args = ARRAY_SIZE(ipw_priv_args), |
| .private = ipw_priv_handler, |
| .private_args = ipw_priv_args, |
| .get_wireless_stats = ipw_get_wireless_stats, |
| }; |
| |
| /* |
| * Get wireless statistics. |
| * Called by /proc/net/wireless |
| * Also called by SIOCGIWSTATS |
| */ |
| static struct iw_statistics *ipw_get_wireless_stats(struct net_device *dev) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| struct iw_statistics *wstats; |
| |
| wstats = &priv->wstats; |
| |
| /* if hw is disabled, then ipw_get_ordinal() can't be called. |
| * netdev->get_wireless_stats seems to be called before fw is |
| * initialized. STATUS_ASSOCIATED will only be set if the hw is up |
| * and associated; if not associcated, the values are all meaningless |
| * anyway, so set them all to NULL and INVALID */ |
| if (!(priv->status & STATUS_ASSOCIATED)) { |
| wstats->miss.beacon = 0; |
| wstats->discard.retries = 0; |
| wstats->qual.qual = 0; |
| wstats->qual.level = 0; |
| wstats->qual.noise = 0; |
| wstats->qual.updated = 7; |
| wstats->qual.updated |= IW_QUAL_NOISE_INVALID | |
| IW_QUAL_QUAL_INVALID | IW_QUAL_LEVEL_INVALID; |
| return wstats; |
| } |
| |
| wstats->qual.qual = priv->quality; |
| wstats->qual.level = priv->exp_avg_rssi; |
| wstats->qual.noise = priv->exp_avg_noise; |
| wstats->qual.updated = IW_QUAL_QUAL_UPDATED | IW_QUAL_LEVEL_UPDATED | |
| IW_QUAL_NOISE_UPDATED | IW_QUAL_DBM; |
| |
| wstats->miss.beacon = average_value(&priv->average_missed_beacons); |
| wstats->discard.retries = priv->last_tx_failures; |
| wstats->discard.code = priv->ieee->ieee_stats.rx_discards_undecryptable; |
| |
| /* if (ipw_get_ordinal(priv, IPW_ORD_STAT_TX_RETRY, &tx_retry, &len)) |
| goto fail_get_ordinal; |
| wstats->discard.retries += tx_retry; */ |
| |
| return wstats; |
| } |
| |
| /* net device stuff */ |
| |
| static void init_sys_config(struct ipw_sys_config *sys_config) |
| { |
| memset(sys_config, 0, sizeof(struct ipw_sys_config)); |
| sys_config->bt_coexistence = 0; |
| sys_config->answer_broadcast_ssid_probe = 0; |
| sys_config->accept_all_data_frames = 0; |
| sys_config->accept_non_directed_frames = 1; |
| sys_config->exclude_unicast_unencrypted = 0; |
| sys_config->disable_unicast_decryption = 1; |
| sys_config->exclude_multicast_unencrypted = 0; |
| sys_config->disable_multicast_decryption = 1; |
| if (antenna < CFG_SYS_ANTENNA_BOTH || antenna > CFG_SYS_ANTENNA_B) |
| antenna = CFG_SYS_ANTENNA_BOTH; |
| sys_config->antenna_diversity = antenna; |
| sys_config->pass_crc_to_host = 0; /* TODO: See if 1 gives us FCS */ |
| sys_config->dot11g_auto_detection = 0; |
| sys_config->enable_cts_to_self = 0; |
| sys_config->bt_coexist_collision_thr = 0; |
| sys_config->pass_noise_stats_to_host = 1; /* 1 -- fix for 256 */ |
| sys_config->silence_threshold = 0x1e; |
| } |
| |
| static int ipw_net_open(struct net_device *dev) |
| { |
| IPW_DEBUG_INFO("dev->open\n"); |
| netif_start_queue(dev); |
| return 0; |
| } |
| |
| static int ipw_net_stop(struct net_device *dev) |
| { |
| IPW_DEBUG_INFO("dev->close\n"); |
| netif_stop_queue(dev); |
| return 0; |
| } |
| |
| /* |
| todo: |
| |
| modify to send one tfd per fragment instead of using chunking. otherwise |
| we need to heavily modify the libipw_skb_to_txb. |
| */ |
| |
| static int ipw_tx_skb(struct ipw_priv *priv, struct libipw_txb *txb, |
| int pri) |
| { |
| struct libipw_hdr_3addrqos *hdr = (struct libipw_hdr_3addrqos *) |
| txb->fragments[0]->data; |
| int i = 0; |
| struct tfd_frame *tfd; |
| #ifdef CONFIG_IPW2200_QOS |
| int tx_id = ipw_get_tx_queue_number(priv, pri); |
| struct clx2_tx_queue *txq = &priv->txq[tx_id]; |
| #else |
| struct clx2_tx_queue *txq = &priv->txq[0]; |
| #endif |
| struct clx2_queue *q = &txq->q; |
| u8 id, hdr_len, unicast; |
| int fc; |
| |
| if (!(priv->status & STATUS_ASSOCIATED)) |
| goto drop; |
| |
| hdr_len = libipw_get_hdrlen(le16_to_cpu(hdr->frame_ctl)); |
| switch (priv->ieee->iw_mode) { |
| case IW_MODE_ADHOC: |
| unicast = !is_multicast_ether_addr(hdr->addr1); |
| id = ipw_find_station(priv, hdr->addr1); |
| if (id == IPW_INVALID_STATION) { |
| id = ipw_add_station(priv, hdr->addr1); |
| if (id == IPW_INVALID_STATION) { |
| IPW_WARNING("Attempt to send data to " |
| "invalid cell: %pM\n", |
| hdr->addr1); |
| goto drop; |
| } |
| } |
| break; |
| |
| case IW_MODE_INFRA: |
| default: |
| unicast = !is_multicast_ether_addr(hdr->addr3); |
| id = 0; |
| break; |
| } |
| |
| tfd = &txq->bd[q->first_empty]; |
| txq->txb[q->first_empty] = txb; |
| memset(tfd, 0, sizeof(*tfd)); |
| tfd->u.data.station_number = id; |
| |
| tfd->control_flags.message_type = TX_FRAME_TYPE; |
| tfd->control_flags.control_bits = TFD_NEED_IRQ_MASK; |
| |
| tfd->u.data.cmd_id = DINO_CMD_TX; |
| tfd->u.data.len = cpu_to_le16(txb->payload_size); |
| |
| if (priv->assoc_request.ieee_mode == IPW_B_MODE) |
| tfd->u.data.tx_flags_ext |= DCT_FLAG_EXT_MODE_CCK; |
| else |
| tfd->u.data.tx_flags_ext |= DCT_FLAG_EXT_MODE_OFDM; |
| |
| if (priv->assoc_request.preamble_length == DCT_FLAG_SHORT_PREAMBLE) |
| tfd->u.data.tx_flags |= DCT_FLAG_SHORT_PREAMBLE; |
| |
| fc = le16_to_cpu(hdr->frame_ctl); |
| hdr->frame_ctl = cpu_to_le16(fc & ~IEEE80211_FCTL_MOREFRAGS); |
| |
| memcpy(&tfd->u.data.tfd.tfd_24.mchdr, hdr, hdr_len); |
| |
| if (likely(unicast)) |
| tfd->u.data.tx_flags |= DCT_FLAG_ACK_REQD; |
| |
| if (txb->encrypted && !priv->ieee->host_encrypt) { |
| switch (priv->ieee->sec.level) { |
| case SEC_LEVEL_3: |
| tfd->u.data.tfd.tfd_24.mchdr.frame_ctl |= |
| cpu_to_le16(IEEE80211_FCTL_PROTECTED); |
| /* XXX: ACK flag must be set for CCMP even if it |
| * is a multicast/broadcast packet, because CCMP |
| * group communication encrypted by GTK is |
| * actually done by the AP. */ |
| if (!unicast) |
| tfd->u.data.tx_flags |= DCT_FLAG_ACK_REQD; |
| |
| tfd->u.data.tx_flags &= ~DCT_FLAG_NO_WEP; |
| tfd->u.data.tx_flags_ext |= DCT_FLAG_EXT_SECURITY_CCM; |
| tfd->u.data.key_index = 0; |
| tfd->u.data.key_index |= DCT_WEP_INDEX_USE_IMMEDIATE; |
| break; |
| case SEC_LEVEL_2: |
| tfd->u.data.tfd.tfd_24.mchdr.frame_ctl |= |
| cpu_to_le16(IEEE80211_FCTL_PROTECTED); |
| tfd->u.data.tx_flags &= ~DCT_FLAG_NO_WEP; |
| tfd->u.data.tx_flags_ext |= DCT_FLAG_EXT_SECURITY_TKIP; |
| tfd->u.data.key_index = DCT_WEP_INDEX_USE_IMMEDIATE; |
| break; |
| case SEC_LEVEL_1: |
| tfd->u.data.tfd.tfd_24.mchdr.frame_ctl |= |
| cpu_to_le16(IEEE80211_FCTL_PROTECTED); |
| tfd->u.data.key_index = priv->ieee->crypt_info.tx_keyidx; |
| if (priv->ieee->sec.key_sizes[priv->ieee->crypt_info.tx_keyidx] <= |
| 40) |
| tfd->u.data.key_index |= DCT_WEP_KEY_64Bit; |
| else |
| tfd->u.data.key_index |= DCT_WEP_KEY_128Bit; |
| break; |
| case SEC_LEVEL_0: |
| break; |
| default: |
| printk(KERN_ERR "Unknown security level %d\n", |
| priv->ieee->sec.level); |
| break; |
| } |
| } else |
| /* No hardware encryption */ |
| tfd->u.data.tx_flags |= DCT_FLAG_NO_WEP; |
| |
| #ifdef CONFIG_IPW2200_QOS |
| if (fc & IEEE80211_STYPE_QOS_DATA) |
| ipw_qos_set_tx_queue_command(priv, pri, &(tfd->u.data)); |
| #endif /* CONFIG_IPW2200_QOS */ |
| |
| /* payload */ |
| tfd->u.data.num_chunks = cpu_to_le32(min((u8) (NUM_TFD_CHUNKS - 2), |
| txb->nr_frags)); |
| IPW_DEBUG_FRAG("%i fragments being sent as %i chunks.\n", |
| txb->nr_frags, le32_to_cpu(tfd->u.data.num_chunks)); |
| for (i = 0; i < le32_to_cpu(tfd->u.data.num_chunks); i++) { |
| IPW_DEBUG_FRAG("Adding fragment %i of %i (%d bytes).\n", |
| i, le32_to_cpu(tfd->u.data.num_chunks), |
| txb->fragments[i]->len - hdr_len); |
| IPW_DEBUG_TX("Dumping TX packet frag %i of %i (%d bytes):\n", |
| i, tfd->u.data.num_chunks, |
| txb->fragments[i]->len - hdr_len); |
| printk_buf(IPW_DL_TX, txb->fragments[i]->data + hdr_len, |
| txb->fragments[i]->len - hdr_len); |
| |
| tfd->u.data.chunk_ptr[i] = |
| cpu_to_le32(dma_map_single(&priv->pci_dev->dev, |
| txb->fragments[i]->data + hdr_len, |
| txb->fragments[i]->len - hdr_len, |
| DMA_TO_DEVICE)); |
| tfd->u.data.chunk_len[i] = |
| cpu_to_le16(txb->fragments[i]->len - hdr_len); |
| } |
| |
| if (i != txb->nr_frags) { |
| struct sk_buff *skb; |
| u16 remaining_bytes = 0; |
| int j; |
| |
| for (j = i; j < txb->nr_frags; j++) |
| remaining_bytes += txb->fragments[j]->len - hdr_len; |
| |
| printk(KERN_INFO "Trying to reallocate for %d bytes\n", |
| remaining_bytes); |
| skb = alloc_skb(remaining_bytes, GFP_ATOMIC); |
| if (skb != NULL) { |
| tfd->u.data.chunk_len[i] = cpu_to_le16(remaining_bytes); |
| for (j = i; j < txb->nr_frags; j++) { |
| int size = txb->fragments[j]->len - hdr_len; |
| |
| printk(KERN_INFO "Adding frag %d %d...\n", |
| j, size); |
| skb_put_data(skb, |
| txb->fragments[j]->data + hdr_len, |
| size); |
| } |
| dev_kfree_skb_any(txb->fragments[i]); |
| txb->fragments[i] = skb; |
| tfd->u.data.chunk_ptr[i] = |
| cpu_to_le32(dma_map_single(&priv->pci_dev->dev, |
| skb->data, |
| remaining_bytes, |
| DMA_TO_DEVICE)); |
| |
| le32_add_cpu(&tfd->u.data.num_chunks, 1); |
| } |
| } |
| |
| /* kick DMA */ |
| q->first_empty = ipw_queue_inc_wrap(q->first_empty, q->n_bd); |
| ipw_write32(priv, q->reg_w, q->first_empty); |
| |
| if (ipw_tx_queue_space(q) < q->high_mark) |
| netif_stop_queue(priv->net_dev); |
| |
| return NETDEV_TX_OK; |
| |
| drop: |
| IPW_DEBUG_DROP("Silently dropping Tx packet.\n"); |
| libipw_txb_free(txb); |
| return NETDEV_TX_OK; |
| } |
| |
| static int ipw_net_is_queue_full(struct net_device *dev, int pri) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| #ifdef CONFIG_IPW2200_QOS |
| int tx_id = ipw_get_tx_queue_number(priv, pri); |
| struct clx2_tx_queue *txq = &priv->txq[tx_id]; |
| #else |
| struct clx2_tx_queue *txq = &priv->txq[0]; |
| #endif /* CONFIG_IPW2200_QOS */ |
| |
| if (ipw_tx_queue_space(&txq->q) < txq->q.high_mark) |
| return 1; |
| |
| return 0; |
| } |
| |
| #ifdef CONFIG_IPW2200_PROMISCUOUS |
| static void ipw_handle_promiscuous_tx(struct ipw_priv *priv, |
| struct libipw_txb *txb) |
| { |
| struct libipw_rx_stats dummystats; |
| struct ieee80211_hdr *hdr; |
| u8 n; |
| u16 filter = priv->prom_priv->filter; |
| int hdr_only = 0; |
| |
| if (filter & IPW_PROM_NO_TX) |
| return; |
| |
| memset(&dummystats, 0, sizeof(dummystats)); |
| |
| /* Filtering of fragment chains is done against the first fragment */ |
| hdr = (void *)txb->fragments[0]->data; |
| if (libipw_is_management(le16_to_cpu(hdr->frame_control))) { |
| if (filter & IPW_PROM_NO_MGMT) |
| return; |
| if (filter & IPW_PROM_MGMT_HEADER_ONLY) |
| hdr_only = 1; |
| } else if (libipw_is_control(le16_to_cpu(hdr->frame_control))) { |
| if (filter & IPW_PROM_NO_CTL) |
| return; |
| if (filter & IPW_PROM_CTL_HEADER_ONLY) |
| hdr_only = 1; |
| } else if (libipw_is_data(le16_to_cpu(hdr->frame_control))) { |
| if (filter & IPW_PROM_NO_DATA) |
| return; |
| if (filter & IPW_PROM_DATA_HEADER_ONLY) |
| hdr_only = 1; |
| } |
| |
| for(n=0; n<txb->nr_frags; ++n) { |
| struct sk_buff *src = txb->fragments[n]; |
| struct sk_buff *dst; |
| struct ieee80211_radiotap_header *rt_hdr; |
| int len; |
| |
| if (hdr_only) { |
| hdr = (void *)src->data; |
| len = libipw_get_hdrlen(le16_to_cpu(hdr->frame_control)); |
| } else |
| len = src->len; |
| |
| dst = alloc_skb(len + sizeof(*rt_hdr) + sizeof(u16)*2, GFP_ATOMIC); |
| if (!dst) |
| continue; |
| |
| rt_hdr = skb_put(dst, sizeof(*rt_hdr)); |
| |
| rt_hdr->it_version = PKTHDR_RADIOTAP_VERSION; |
| rt_hdr->it_pad = 0; |
| rt_hdr->it_present = 0; /* after all, it's just an idea */ |
| rt_hdr->it_present |= cpu_to_le32(1 << IEEE80211_RADIOTAP_CHANNEL); |
| |
| *(__le16*)skb_put(dst, sizeof(u16)) = cpu_to_le16( |
| ieee80211chan2mhz(priv->channel)); |
| if (priv->channel > 14) /* 802.11a */ |
| *(__le16*)skb_put(dst, sizeof(u16)) = |
| cpu_to_le16(IEEE80211_CHAN_OFDM | |
| IEEE80211_CHAN_5GHZ); |
| else if (priv->ieee->mode == IEEE_B) /* 802.11b */ |
| *(__le16*)skb_put(dst, sizeof(u16)) = |
| cpu_to_le16(IEEE80211_CHAN_CCK | |
| IEEE80211_CHAN_2GHZ); |
| else /* 802.11g */ |
| *(__le16*)skb_put(dst, sizeof(u16)) = |
| cpu_to_le16(IEEE80211_CHAN_OFDM | |
| IEEE80211_CHAN_2GHZ); |
| |
| rt_hdr->it_len = cpu_to_le16(dst->len); |
| |
| skb_copy_from_linear_data(src, skb_put(dst, len), len); |
| |
| if (!libipw_rx(priv->prom_priv->ieee, dst, &dummystats)) |
| dev_kfree_skb_any(dst); |
| } |
| } |
| #endif |
| |
| static netdev_tx_t ipw_net_hard_start_xmit(struct libipw_txb *txb, |
| struct net_device *dev, int pri) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| unsigned long flags; |
| netdev_tx_t ret; |
| |
| IPW_DEBUG_TX("dev->xmit(%d bytes)\n", txb->payload_size); |
| spin_lock_irqsave(&priv->lock, flags); |
| |
| #ifdef CONFIG_IPW2200_PROMISCUOUS |
| if (rtap_iface && netif_running(priv->prom_net_dev)) |
| ipw_handle_promiscuous_tx(priv, txb); |
| #endif |
| |
| ret = ipw_tx_skb(priv, txb, pri); |
| if (ret == NETDEV_TX_OK) |
| __ipw_led_activity_on(priv); |
| spin_unlock_irqrestore(&priv->lock, flags); |
| |
| return ret; |
| } |
| |
| static void ipw_net_set_multicast_list(struct net_device *dev) |
| { |
| |
| } |
| |
| static int ipw_net_set_mac_address(struct net_device *dev, void *p) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| struct sockaddr *addr = p; |
| |
| if (!is_valid_ether_addr(addr->sa_data)) |
| return -EADDRNOTAVAIL; |
| mutex_lock(&priv->mutex); |
| priv->config |= CFG_CUSTOM_MAC; |
| memcpy(priv->mac_addr, addr->sa_data, ETH_ALEN); |
| printk(KERN_INFO "%s: Setting MAC to %pM\n", |
| priv->net_dev->name, priv->mac_addr); |
| schedule_work(&priv->adapter_restart); |
| mutex_unlock(&priv->mutex); |
| return 0; |
| } |
| |
| static void ipw_ethtool_get_drvinfo(struct net_device *dev, |
| struct ethtool_drvinfo *info) |
| { |
| struct ipw_priv *p = libipw_priv(dev); |
| char vers[64]; |
| char date[32]; |
| u32 len; |
| |
| strlcpy(info->driver, DRV_NAME, sizeof(info->driver)); |
| strlcpy(info->version, DRV_VERSION, sizeof(info->version)); |
| |
| len = sizeof(vers); |
| ipw_get_ordinal(p, IPW_ORD_STAT_FW_VERSION, vers, &len); |
| len = sizeof(date); |
| ipw_get_ordinal(p, IPW_ORD_STAT_FW_DATE, date, &len); |
| |
| snprintf(info->fw_version, sizeof(info->fw_version), "%s (%s)", |
| vers, date); |
| strlcpy(info->bus_info, pci_name(p->pci_dev), |
| sizeof(info->bus_info)); |
| } |
| |
| static u32 ipw_ethtool_get_link(struct net_device *dev) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| return (priv->status & STATUS_ASSOCIATED) != 0; |
| } |
| |
| static int ipw_ethtool_get_eeprom_len(struct net_device *dev) |
| { |
| return IPW_EEPROM_IMAGE_SIZE; |
| } |
| |
| static int ipw_ethtool_get_eeprom(struct net_device *dev, |
| struct ethtool_eeprom *eeprom, u8 * bytes) |
| { |
| struct ipw_priv *p = libipw_priv(dev); |
| |
| if (eeprom->offset + eeprom->len > IPW_EEPROM_IMAGE_SIZE) |
| return -EINVAL; |
| mutex_lock(&p->mutex); |
| memcpy(bytes, &p->eeprom[eeprom->offset], eeprom->len); |
| mutex_unlock(&p->mutex); |
| return 0; |
| } |
| |
| static int ipw_ethtool_set_eeprom(struct net_device *dev, |
| struct ethtool_eeprom *eeprom, u8 * bytes) |
| { |
| struct ipw_priv *p = libipw_priv(dev); |
| int i; |
| |
| if (eeprom->offset + eeprom->len > IPW_EEPROM_IMAGE_SIZE) |
| return -EINVAL; |
| mutex_lock(&p->mutex); |
| memcpy(&p->eeprom[eeprom->offset], bytes, eeprom->len); |
| for (i = 0; i < IPW_EEPROM_IMAGE_SIZE; i++) |
| ipw_write8(p, i + IPW_EEPROM_DATA, p->eeprom[i]); |
| mutex_unlock(&p->mutex); |
| return 0; |
| } |
| |
| static const struct ethtool_ops ipw_ethtool_ops = { |
| .get_link = ipw_ethtool_get_link, |
| .get_drvinfo = ipw_ethtool_get_drvinfo, |
| .get_eeprom_len = ipw_ethtool_get_eeprom_len, |
| .get_eeprom = ipw_ethtool_get_eeprom, |
| .set_eeprom = ipw_ethtool_set_eeprom, |
| }; |
| |
| static irqreturn_t ipw_isr(int irq, void *data) |
| { |
| struct ipw_priv *priv = data; |
| u32 inta, inta_mask; |
| |
| if (!priv) |
| return IRQ_NONE; |
| |
| spin_lock(&priv->irq_lock); |
| |
| if (!(priv->status & STATUS_INT_ENABLED)) { |
| /* IRQ is disabled */ |
| goto none; |
| } |
| |
| inta = ipw_read32(priv, IPW_INTA_RW); |
| inta_mask = ipw_read32(priv, IPW_INTA_MASK_R); |
| |
| if (inta == 0xFFFFFFFF) { |
| /* Hardware disappeared */ |
| IPW_WARNING("IRQ INTA == 0xFFFFFFFF\n"); |
| goto none; |
| } |
| |
| if (!(inta & (IPW_INTA_MASK_ALL & inta_mask))) { |
| /* Shared interrupt */ |
| goto none; |
| } |
| |
| /* tell the device to stop sending interrupts */ |
| __ipw_disable_interrupts(priv); |
| |
| /* ack current interrupts */ |
| inta &= (IPW_INTA_MASK_ALL & inta_mask); |
| ipw_write32(priv, IPW_INTA_RW, inta); |
| |
| /* Cache INTA value for our tasklet */ |
| priv->isr_inta = inta; |
| |
| tasklet_schedule(&priv->irq_tasklet); |
| |
| spin_unlock(&priv->irq_lock); |
| |
| return IRQ_HANDLED; |
| none: |
| spin_unlock(&priv->irq_lock); |
| return IRQ_NONE; |
| } |
| |
| static void ipw_rf_kill(void *adapter) |
| { |
| struct ipw_priv *priv = adapter; |
| unsigned long flags; |
| |
| spin_lock_irqsave(&priv->lock, flags); |
| |
| if (rf_kill_active(priv)) { |
| IPW_DEBUG_RF_KILL("RF Kill active, rescheduling GPIO check\n"); |
| schedule_delayed_work(&priv->rf_kill, 2 * HZ); |
| goto exit_unlock; |
| } |
| |
| /* RF Kill is now disabled, so bring the device back up */ |
| |
| if (!(priv->status & STATUS_RF_KILL_MASK)) { |
| IPW_DEBUG_RF_KILL("HW RF Kill no longer active, restarting " |
| "device\n"); |
| |
| /* we can not do an adapter restart while inside an irq lock */ |
| schedule_work(&priv->adapter_restart); |
| } else |
| IPW_DEBUG_RF_KILL("HW RF Kill deactivated. SW RF Kill still " |
| "enabled\n"); |
| |
| exit_unlock: |
| spin_unlock_irqrestore(&priv->lock, flags); |
| } |
| |
| static void ipw_bg_rf_kill(struct work_struct *work) |
| { |
| struct ipw_priv *priv = |
| container_of(work, struct ipw_priv, rf_kill.work); |
| mutex_lock(&priv->mutex); |
| ipw_rf_kill(priv); |
| mutex_unlock(&priv->mutex); |
| } |
| |
| static void ipw_link_up(struct ipw_priv *priv) |
| { |
| priv->last_seq_num = -1; |
| priv->last_frag_num = -1; |
| priv->last_packet_time = 0; |
| |
| netif_carrier_on(priv->net_dev); |
| |
| cancel_delayed_work(&priv->request_scan); |
| cancel_delayed_work(&priv->request_direct_scan); |
| cancel_delayed_work(&priv->request_passive_scan); |
| cancel_delayed_work(&priv->scan_event); |
| ipw_reset_stats(priv); |
| /* Ensure the rate is updated immediately */ |
| priv->last_rate = ipw_get_current_rate(priv); |
| ipw_gather_stats(priv); |
| ipw_led_link_up(priv); |
| notify_wx_assoc_event(priv); |
| |
| if (priv->config & CFG_BACKGROUND_SCAN) |
| schedule_delayed_work(&priv->request_scan, HZ); |
| } |
| |
| static void ipw_bg_link_up(struct work_struct *work) |
| { |
| struct ipw_priv *priv = |
| container_of(work, struct ipw_priv, link_up); |
| mutex_lock(&priv->mutex); |
| ipw_link_up(priv); |
| mutex_unlock(&priv->mutex); |
| } |
| |
| static void ipw_link_down(struct ipw_priv *priv) |
| { |
| ipw_led_link_down(priv); |
| netif_carrier_off(priv->net_dev); |
| notify_wx_assoc_event(priv); |
| |
| /* Cancel any queued work ... */ |
| cancel_delayed_work(&priv->request_scan); |
| cancel_delayed_work(&priv->request_direct_scan); |
| cancel_delayed_work(&priv->request_passive_scan); |
| cancel_delayed_work(&priv->adhoc_check); |
| cancel_delayed_work(&priv->gather_stats); |
| |
| ipw_reset_stats(priv); |
| |
| if (!(priv->status & STATUS_EXIT_PENDING)) { |
| /* Queue up another scan... */ |
| schedule_delayed_work(&priv->request_scan, 0); |
| } else |
| cancel_delayed_work(&priv->scan_event); |
| } |
| |
| static void ipw_bg_link_down(struct work_struct *work) |
| { |
| struct ipw_priv *priv = |
| container_of(work, struct ipw_priv, link_down); |
| mutex_lock(&priv->mutex); |
| ipw_link_down(priv); |
| mutex_unlock(&priv->mutex); |
| } |
| |
| static int ipw_setup_deferred_work(struct ipw_priv *priv) |
| { |
| int ret = 0; |
| |
| init_waitqueue_head(&priv->wait_command_queue); |
| init_waitqueue_head(&priv->wait_state); |
| |
| INIT_DELAYED_WORK(&priv->adhoc_check, ipw_bg_adhoc_check); |
| INIT_WORK(&priv->associate, ipw_bg_associate); |
| INIT_WORK(&priv->disassociate, ipw_bg_disassociate); |
| INIT_WORK(&priv->system_config, ipw_system_config); |
| INIT_WORK(&priv->rx_replenish, ipw_bg_rx_queue_replenish); |
| INIT_WORK(&priv->adapter_restart, ipw_bg_adapter_restart); |
| INIT_DELAYED_WORK(&priv->rf_kill, ipw_bg_rf_kill); |
| INIT_WORK(&priv->up, ipw_bg_up); |
| INIT_WORK(&priv->down, ipw_bg_down); |
| INIT_DELAYED_WORK(&priv->request_scan, ipw_request_scan); |
| INIT_DELAYED_WORK(&priv->request_direct_scan, ipw_request_direct_scan); |
| INIT_DELAYED_WORK(&priv->request_passive_scan, ipw_request_passive_scan); |
| INIT_DELAYED_WORK(&priv->scan_event, ipw_scan_event); |
| INIT_DELAYED_WORK(&priv->gather_stats, ipw_bg_gather_stats); |
| INIT_WORK(&priv->abort_scan, ipw_bg_abort_scan); |
| INIT_WORK(&priv->roam, ipw_bg_roam); |
| INIT_DELAYED_WORK(&priv->scan_check, ipw_bg_scan_check); |
| INIT_WORK(&priv->link_up, ipw_bg_link_up); |
| INIT_WORK(&priv->link_down, ipw_bg_link_down); |
| INIT_DELAYED_WORK(&priv->led_link_on, ipw_bg_led_link_on); |
| INIT_DELAYED_WORK(&priv->led_link_off, ipw_bg_led_link_off); |
| INIT_DELAYED_WORK(&priv->led_act_off, ipw_bg_led_activity_off); |
| INIT_WORK(&priv->merge_networks, ipw_merge_adhoc_network); |
| |
| #ifdef CONFIG_IPW2200_QOS |
| INIT_WORK(&priv->qos_activate, ipw_bg_qos_activate); |
| #endif /* CONFIG_IPW2200_QOS */ |
| |
| tasklet_init(&priv->irq_tasklet, |
| ipw_irq_tasklet, (unsigned long)priv); |
| |
| return ret; |
| } |
| |
| static void shim__set_security(struct net_device *dev, |
| struct libipw_security *sec) |
| { |
| struct ipw_priv *priv = libipw_priv(dev); |
| int i; |
| for (i = 0; i < 4; i++) { |
| if (sec->flags & (1 << i)) { |
| priv->ieee->sec.encode_alg[i] = sec->encode_alg[i]; |
| priv->ieee->sec.key_sizes[i] = sec->key_sizes[i]; |
| if (sec->key_sizes[i] == 0) |
| priv->ieee->sec.flags &= ~(1 << i); |
| else { |
| memcpy(priv->ieee->sec.keys[i], sec->keys[i], |
| sec->key_sizes[i]); |
| priv->ieee->sec.flags |= (1 << i); |
| } |
| priv->status |= STATUS_SECURITY_UPDATED; |
| } else if (sec->level != SEC_LEVEL_1) |
| priv->ieee->sec.flags &= ~(1 << i); |
| } |
| |
| if (sec->flags & SEC_ACTIVE_KEY) { |
| if (sec->active_key <= 3) { |
| priv->ieee->sec.active_key = sec->active_key; |
| priv->ieee->sec.flags |= SEC_ACTIVE_KEY; |
| } else |
| priv->ieee->sec.flags &= ~SEC_ACTIVE_KEY; |
| priv->status |= STATUS_SECURITY_UPDATED; |
| } else |
| priv->ieee->sec.flags &= ~SEC_ACTIVE_KEY; |
| |
| if ((sec->flags & SEC_AUTH_MODE) && |
| (priv->ieee->sec.auth_mode != sec->auth_mode)) { |
| priv->ieee->sec.auth_mode = sec->auth_mode; |
| priv->ieee->sec.flags |= SEC_AUTH_MODE; |
| if (sec->auth_mode == WLAN_AUTH_SHARED_KEY) |
| priv->capability |= CAP_SHARED_KEY; |
| else |
| priv->capability &= ~CAP_SHARED_KEY; |
| priv->status |= STATUS_SECURITY_UPDATED; |
| } |
| |
| if (sec->flags & SEC_ENABLED && priv->ieee->sec.enabled != sec->enabled) { |
| priv->ieee->sec.flags |= SEC_ENABLED; |
| priv->ieee->sec.enabled = sec->enabled; |
| priv->status |= STATUS_SECURITY_UPDATED; |
| if (sec->enabled) |
| priv->capability |= CAP_PRIVACY_ON; |
| else |
| priv->capability &= ~CAP_PRIVACY_ON; |
| } |
| |
| if (sec->flags & SEC_ENCRYPT) |
| priv->ieee->sec.encrypt = sec->encrypt; |
| |
| if (sec->flags & SEC_LEVEL && priv->ieee->sec.level != sec->level) { |
| priv->ieee->sec.level = sec->level; |
| priv->ieee->sec.flags |= SEC_LEVEL; |
| priv->status |= STATUS_SECURITY_UPDATED; |
| } |
| |
| if (!priv->ieee->host_encrypt && (sec->flags & SEC_ENCRYPT)) |
| ipw_set_hwcrypto_keys(priv); |
| |
| /* To match current functionality of ipw2100 (which works well w/ |
| * various supplicants, we don't force a disassociate if the |
| * privacy capability changes ... */ |
| #if 0 |
| if ((priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) && |
| (((priv->assoc_request.capability & |
| cpu_to_le16(WLAN_CAPABILITY_PRIVACY)) && !sec->enabled) || |
| (!(priv->assoc_request.capability & |
| cpu_to_le16(WLAN_CAPABILITY_PRIVACY)) && sec->enabled))) { |
| IPW_DEBUG_ASSOC("Disassociating due to capability " |
| "change.\n"); |
| ipw_disassociate(priv); |
| } |
| #endif |
| } |
| |
| static int init_supported_rates(struct ipw_priv *priv, |
| struct ipw_supported_rates *rates) |
| { |
| /* TODO: Mask out rates based on priv->rates_mask */ |
| |
| memset(rates, 0, sizeof(*rates)); |
| /* configure supported rates */ |
| switch (priv->ieee->freq_band) { |
| case LIBIPW_52GHZ_BAND: |
| rates->ieee_mode = IPW_A_MODE; |
| rates->purpose = IPW_RATE_CAPABILITIES; |
| ipw_add_ofdm_scan_rates(rates, LIBIPW_CCK_MODULATION, |
| LIBIPW_OFDM_DEFAULT_RATES_MASK); |
| break; |
| |
| default: /* Mixed or 2.4Ghz */ |
| rates->ieee_mode = IPW_G_MODE; |
| rates->purpose = IPW_RATE_CAPABILITIES; |
| ipw_add_cck_scan_rates(rates, LIBIPW_CCK_MODULATION, |
| LIBIPW_CCK_DEFAULT_RATES_MASK); |
| if (priv->ieee->modulation & LIBIPW_OFDM_MODULATION) { |
| ipw_add_ofdm_scan_rates(rates, LIBIPW_CCK_MODULATION, |
| LIBIPW_OFDM_DEFAULT_RATES_MASK); |
| } |
| break; |
| } |
| |
| return 0; |
| } |
| |
| static int ipw_config(struct ipw_priv *priv) |
| { |
| /* This is only called from ipw_up, which resets/reloads the firmware |
| so, we don't need to first disable the card before we configure |
| it */ |
| if (ipw_set_tx_power(priv)) |
| goto error; |
| |
| /* initialize adapter address */ |
| if (ipw_send_adapter_address(priv, priv->net_dev->dev_addr)) |
| goto error; |
| |
| /* set basic system config settings */ |
| init_sys_config(&priv->sys_config); |
| |
| /* Support Bluetooth if we have BT h/w on board, and user wants to. |
| * Does not support BT priority yet (don't abort or defer our Tx) */ |
| if (bt_coexist) { |
| unsigned char bt_caps = priv->eeprom[EEPROM_SKU_CAPABILITY]; |
| |
| if (bt_caps & EEPROM_SKU_CAP_BT_CHANNEL_SIG) |
| priv->sys_config.bt_coexistence |
| |= CFG_BT_COEXISTENCE_SIGNAL_CHNL; |
| if (bt_caps & EEPROM_SKU_CAP_BT_OOB) |
| priv->sys_config.bt_coexistence |
| |= CFG_BT_COEXISTENCE_OOB; |
| } |
| |
| #ifdef CONFIG_IPW2200_PROMISCUOUS |
| if (priv->prom_net_dev && netif_running(priv->prom_net_dev)) { |
| priv->sys_config.accept_all_data_frames = 1; |
| priv->sys_config.accept_non_directed_frames = 1; |
| priv->sys_config.accept_all_mgmt_bcpr = 1; |
| priv->sys_config.accept_all_mgmt_frames = 1; |
| } |
| #endif |
| |
| if (priv->ieee->iw_mode == IW_MODE_ADHOC) |
| priv->sys_config.answer_broadcast_ssid_probe = 1; |
| else |
| priv->sys_config.answer_broadcast_ssid_probe = 0; |
| |
| if (ipw_send_system_config(priv)) |
| goto error; |
| |
| init_supported_rates(priv, &priv->rates); |
| if (ipw_send_supported_rates(priv, &priv->rates)) |
| goto error; |
| |
| /* Set request-to-send threshold */ |
| if (priv->rts_threshold) { |
| if (ipw_send_rts_threshold(priv, priv->rts_threshold)) |
| goto error; |
| } |
| #ifdef CONFIG_IPW2200_QOS |
| IPW_DEBUG_QOS("QoS: call ipw_qos_activate\n"); |
| ipw_qos_activate(priv, NULL); |
| #endif /* CONFIG_IPW2200_QOS */ |
| |
| if (ipw_set_random_seed(priv)) |
| goto error; |
| |
| /* final state transition to the RUN state */ |
| if (ipw_send_host_complete(priv)) |
| goto error; |
| |
| priv->status |= STATUS_INIT; |
| |
| ipw_led_init(priv); |
| ipw_led_radio_on(priv); |
| priv->notif_missed_beacons = 0; |
| |
| /* Set hardware WEP key if it is configured. */ |
| if ((priv->capability & CAP_PRIVACY_ON) && |
| (priv->ieee->sec.level == SEC_LEVEL_1) && |
| !(priv->ieee->host_encrypt || priv->ieee->host_decrypt)) |
| ipw_set_hwcrypto_keys(priv); |
| |
| return 0; |
| |
| error: |
| return -EIO; |
| } |
| |
| /* |
| * NOTE: |
| * |
| * These tables have been tested in conjunction with the |
| * Intel PRO/Wireless 2200BG and 2915ABG Network Connection Adapters. |
| * |
| * Altering this values, using it on other hardware, or in geographies |
| * not intended for resale of the above mentioned Intel adapters has |
| * not been tested. |
| * |
| * Remember to update the table in README.ipw2200 when changing this |
| * table. |
| * |
| */ |
| static const struct libipw_geo ipw_geos[] = { |
| { /* Restricted */ |
| "---", |
| .bg_channels = 11, |
| .bg = {{2412, 1}, {2417, 2}, {2422, 3}, |
| {2427, 4}, {2432, 5}, {2437, 6}, |
| {2442, 7}, {2447, 8}, {2452, 9}, |
| {2457, 10}, {2462, 11}}, |
| }, |
| |
| { /* Custom US/Canada */ |
| "ZZF", |
| .bg_channels = 11, |
| .bg = {{2412, 1}, {2417, 2}, {2422, 3}, |
| {2427, 4}, {2432, 5}, {2437, 6}, |
| {2442, 7}, {2447, 8}, {2452, 9}, |
| {2457, 10}, {2462, 11}}, |
| .a_channels = 8, |
| .a = {{5180, 36}, |
| {5200, 40}, |
| {5220, 44}, |
| {5240, 48}, |
| {5260, 52, LIBIPW_CH_PASSIVE_ONLY}, |
| {5280, 56, LIBIPW_CH_PASSIVE_ONLY}, |
| {5300, 60, LIBIPW_CH_PASSIVE_ONLY}, |
| {5320, 64, LIBIPW_CH_PASSIVE_ONLY}}, |
| }, |
| |
| { /* Rest of World */ |
| "ZZD", |
| .bg_channels = 13, |
| .bg = {{2412, 1}, {2417, 2}, {2422, 3}, |
| {2427, 4}, {2432, 5}, {2437, 6}, |
| {2442, 7}, {2447, 8}, {2452, 9}, |
| {2457, 10}, {2462, 11}, {2467, 12}, |
| {2472, 13}}, |
| }, |
| |
| { /* Custom USA & Europe & High */ |
| "ZZA", |
| .bg_channels = 11, |
| .bg = {{2412, 1}, {2417, 2}, {2422, 3}, |
| {2427, 4}, {2432, 5}, {2437, 6}, |
| {2442, 7}, {2447, 8}, {2452, 9}, |
| {2457, 10}, {2462, 11}}, |
| .a_channels = 13, |
| .a = {{5180, 36}, |
| {5200, 40}, |
| {5220, 44}, |
| {5240, 48}, |
| {5260, 52, LIBIPW_CH_PASSIVE_ONLY}, |
| {5280, 56, LIBIPW_CH_PASSIVE_ONLY}, |
| {5300, 60, LIBIPW_CH_PASSIVE_ONLY}, |
| {5320, 64, LIBIPW_CH_PASSIVE_ONLY}, |
| {5745, 149}, |
| {5765, 153}, |
| {5785, 157}, |
| {5805, 161}, |
| {5825, 165}}, |
| }, |
| |
| { /* Custom NA & Europe */ |
| "ZZB", |
| .bg_channels = 11, |
| .bg = {{2412, 1}, {2417, 2}, {2422, 3}, |
| {2427, 4}, {2432, 5}, {2437, 6}, |
| {2442, 7}, {2447, 8}, {2452, 9}, |
| {2457, 10}, {2462, 11}}, |
| .a_channels = 13, |
| .a = {{5180, 36}, |
| {5200, 40}, |
| {5220, 44}, |
| {5240, 48}, |
| {5260, 52, LIBIPW_CH_PASSIVE_ONLY}, |
| {5280, 56, LIBIPW_CH_PASSIVE_ONLY}, |
| {5300, 60, LIBIPW_CH_PASSIVE_ONLY}, |
| {5320, 64, LIBIPW_CH_PASSIVE_ONLY}, |
| {5745, 149, LIBIPW_CH_PASSIVE_ONLY}, |
| {5765, 153, LIBIPW_CH_PASSIVE_ONLY}, |
| {5785, 157, LIBIPW_CH_PASSIVE_ONLY}, |
| {5805, 161, LIBIPW_CH_PASSIVE_ONLY}, |
| {5825, 165, LIBIPW_CH_PASSIVE_ONLY}}, |
| }, |
| |
| { /* Custom Japan */ |
| "ZZC", |
| .bg_channels = 11, |
| .bg = {{2412, 1}, {2417, 2}, {2422, 3}, |
| {2427, 4}, {2432, 5}, {2437, 6}, |
| {2442, 7}, {2447, 8}, {2452, 9}, |
| {2457, 10}, {2462, 11}}, |
| .a_channels = 4, |
| .a = {{5170, 34}, {5190, 38}, |
| {5210, 42}, {5230, 46}}, |
| }, |
| |
| { /* Custom */ |
| "ZZM", |
| .bg_channels = 11, |
| .bg = {{2412, 1}, {2417, 2}, {2422, 3}, |
| {2427, 4}, {2432, 5}, {2437, 6}, |
| {2442, 7}, {2447, 8}, {2452, 9}, |
| {2457, 10}, {2462, 11}}, |
| }, |
| |
| { /* Europe */ |
| "ZZE", |
| .bg_channels = 13, |
| .bg = {{2412, 1}, {2417, 2}, {2422, 3}, |
| {2427, 4}, {2432, 5}, {2437, 6}, |
| {2442, 7}, {2447, 8}, {2452, 9}, |
| {2457, 10}, {2462, 11}, {2467, 12}, |
| {2472, 13}}, |
| .a_channels = 19, |
| .a = {{5180, 36}, |
| {5200, 40}, |
| {5220, 44}, |
| {5240, 48}, |
| {5260, 52, LIBIPW_CH_PASSIVE_ONLY}, |
| {5280, 56, LIBIPW_CH_PASSIVE_ONLY}, |
| {5300, 60, LIBIPW_CH_PASSIVE_ONLY}, |
| {5320, 64, LIBIPW_CH_PASSIVE_ONLY}, |
| {5500, 100, LIBIPW_CH_PASSIVE_ONLY}, |
| {5520, 104, LIBIPW_CH_PASSIVE_ONLY}, |
| {5540, 108, LIBIPW_CH_PASSIVE_ONLY}, |
| {5560, 112, LIBIPW_CH_PASSIVE_ONLY}, |
| {5580, 116, LIBIPW_CH_PASSIVE_ONLY}, |
| {5600, 120, LIBIPW_CH_PASSIVE_ONLY}, |
| {5620, 124, LIBIPW_CH_PASSIVE_ONLY}, |
| {5640, 128, LIBIPW_CH_PASSIVE_ONLY}, |
| {5660, 132, LIBIPW_CH_PASSIVE_ONLY}, |
| {5680, 136, LIBIPW_CH_PASSIVE_ONLY}, |
| {5700, 140, LIBIPW_CH_PASSIVE_ONLY}}, |
| }, |
| |
| { /* Custom Japan */ |
| "ZZJ", |
| .bg_channels = 14, |
| .bg = {{2412, 1}, {2417, 2}, {2422, 3}, |
| {2427, 4}, {2432, 5}, {2437, 6}, |
| {2442, 7}, {2447, 8}, {2452, 9}, |
| {2457, 10}, {2462, 11}, {2467, 12}, |
| {2472, 13}, {2484, 14, LIBIPW_CH_B_ONLY}}, |
| .a_channels = 4, |
| .a = {{5170, 34}, {5190, 38}, |
| {5210, 42}, {5230, 46}}, |
| }, |
| |
| { /* Rest of World */ |
| "ZZR", |
| .bg_channels = 14, |
| .bg = {{2412, 1}, {2417, 2}, {2422, 3}, |
| {2427, 4}, {2432, 5}, {2437, 6}, |
| {2442, 7}, {2447, 8}, {2452, 9}, |
| {2457, 10}, {2462, 11}, {2467, 12}, |
| {2472, 13}, {2484, 14, LIBIPW_CH_B_ONLY | |
| LIBIPW_CH_PASSIVE_ONLY}}, |
| }, |
| |
| { /* High Band */ |
| "ZZH", |
| .bg_channels = 13, |
| .bg = {{2412, 1}, {2417, 2}, {2422, 3}, |
| {2427, 4}, {2432, 5}, {2437, 6}, |
| {2442, 7}, {2447, 8}, {2452, 9}, |
| {2457, 10}, {2462, 11}, |
| {2467, 12, LIBIPW_CH_PASSIVE_ONLY}, |
| {2472, 13, LIBIPW_CH_PASSIVE_ONLY}}, |
| .a_channels = 4, |
| .a = {{5745, 149}, {5765, 153}, |
| {5785, 157}, {5805, 161}}, |
| }, |
| |
| { /* Custom Europe */ |
| "ZZG", |
| .bg_channels = 13, |
| .bg = {{2412, 1}, {2417, 2}, {2422, 3}, |
| {2427, 4}, {2432, 5}, {2437, 6}, |
| {2442, 7}, {2447, 8}, {2452, 9}, |
| {2457, 10}, {2462, 11}, |
| {2467, 12}, {2472, 13}}, |
| .a_channels = 4, |
| .a = {{5180, 36}, {5200, 40}, |
| {5220, 44}, {5240, 48}}, |
| }, |
| |
| { /* Europe */ |
| "ZZK", |
| .bg_channels = 13, |
| .bg = {{2412, 1}, {2417, 2}, {2422, 3}, |
| {2427, 4}, {2432, 5}, {2437, 6}, |
| {2442, 7}, {2447, 8}, {2452, 9}, |
| {2457, 10}, {2462, 11}, |
| {2467, 12, LIBIPW_CH_PASSIVE_ONLY}, |
| {2472, 13, LIBIPW_CH_PASSIVE_ONLY}}, |
| .a_channels = 24, |
| .a = {{5180, 36, LIBIPW_CH_PASSIVE_ONLY}, |
| {5200, 40, LIBIPW_CH_PASSIVE_ONLY}, |
| {5220, 44, LIBIPW_CH_PASSIVE_ONLY}, |
| {5240, 48, LIBIPW_CH_PASSIVE_ONLY}, |
| {5260, 52, LIBIPW_CH_PASSIVE_ONLY}, |
| {5280, 56, LIBIPW_CH_PASSIVE_ONLY}, |
| {5300, 60, LIBIPW_CH_PASSIVE_ONLY}, |
| {5320, 64, LIBIPW_CH_PASSIVE_ONLY}, |
| {5500, 100, LIBIPW_CH_PASSIVE_ONLY}, |
| {5520, 104, LIBIPW_CH_PASSIVE_ONLY}, |
| {5540, 108, LIBIPW_CH_PASSIVE_ONLY}, |
| {5560, 112, LIBIPW_CH_PASSIVE_ONLY}, |
| {5580, 116, LIBIPW_CH_PASSIVE_ONLY}, |
| {5600, 120, LIBIPW_CH_PASSIVE_ONLY}, |
| {5620, 124, LIBIPW_CH_PASSIVE_ONLY}, |
| {5640, 128, LIBIPW_CH_PASSIVE_ONLY}, |
| {5660, 132, LIBIPW_CH_PASSIVE_ONLY}, |
| {5680, 136, LIBIPW_CH_PASSIVE_ONLY}, |
| {5700, 140, LIBIPW_CH_PASSIVE_ONLY}, |
| {5745, 149, LIBIPW_CH_PASSIVE_ONLY}, |
| {5765, 153, LIBIPW_CH_PASSIVE_ONLY}, |
| {5785, 157, LIBIPW_CH_PASSIVE_ONLY}, |
| {5805, 161, LIBIPW_CH_PASSIVE_ONLY}, |
| {5825, 165, LIBIPW_CH_PASSIVE_ONLY}}, |
| }, |
| |
| { /* Europe */ |
| "ZZL", |
| .bg_channels = 11, |
| .bg = {{2412, 1}, {2417, 2}, {2422, 3}, |
| {2427, 4}, {2432, 5}, {2437, 6}, |
| {2442, 7}, {2447, 8}, {2452, 9}, |
| {2457, 10}, {2462, 11}}, |
| .a_channels = 13, |
| .a = {{5180, 36, LIBIPW_CH_PASSIVE_ONLY}, |
| {5200, 40, LIBIPW_CH_PASSIVE_ONLY}, |
| {5220, 44, LIBIPW_CH_PASSIVE_ONLY}, |
| {5240, 48, LIBIPW_CH_PASSIVE_ONLY}, |
| {5260, 52, LIBIPW_CH_PASSIVE_ONLY}, |
| {5280, 56, LIBIPW_CH_PASSIVE_ONLY}, |
| {5300, 60, LIBIPW_CH_PASSIVE_ONLY}, |
| {5320, 64, LIBIPW_CH_PASSIVE_ONLY}, |
| {5745, 149, LIBIPW_CH_PASSIVE_ONLY}, |
| {5765, 153, LIBIPW_CH_PASSIVE_ONLY}, |
| {5785, 157, LIBIPW_CH_PASSIVE_ONLY}, |
| {5805, 161, LIBIPW_CH_PASSIVE_ONLY}, |
| {5825, 165, LIBIPW_CH_PASSIVE_ONLY}}, |
| } |
| }; |
| |
| static void ipw_set_geo(struct ipw_priv *priv) |
| { |
| int j; |
| |
| for (j = 0; j < ARRAY_SIZE(ipw_geos); j++) { |
| if (!memcmp(&priv->eeprom[EEPROM_COUNTRY_CODE], |
| ipw_geos[j].name, 3)) |
| break; |
| } |
| |
| if (j == ARRAY_SIZE(ipw_geos)) { |
| IPW_WARNING("SKU [%c%c%c] not recognized.\n", |
| priv->eeprom[EEPROM_COUNTRY_CODE + 0], |
| priv->eeprom[EEPROM_COUNTRY_CODE + 1], |
| priv->eeprom[EEPROM_COUNTRY_CODE + 2]); |
| j = 0; |
| } |
| |
| libipw_set_geo(priv->ieee, &ipw_geos[j]); |
| } |
| |
| #define MAX_HW_RESTARTS 5 |
| static int ipw_up(struct ipw_priv *priv) |
| { |
| int rc, i; |
| |
| /* Age scan list entries found before suspend */ |
| if (priv->suspend_time) { |
| libipw_networks_age(priv->ieee, priv->suspend_time); |
| priv->suspend_time = 0; |
| } |
| |
| if (priv->status & STATUS_EXIT_PENDING) |
| return -EIO; |
| |
| if (cmdlog && !priv->cmdlog) { |
| priv->cmdlog = kcalloc(cmdlog, sizeof(*priv->cmdlog), |
| GFP_KERNEL); |
| if (priv->cmdlog == NULL) { |
| IPW_ERROR("Error allocating %d command log entries.\n", |
| cmdlog); |
| return -ENOMEM; |
| } else { |
| priv->cmdlog_len = cmdlog; |
| } |
| } |
| |
| for (i = 0; i < MAX_HW_RESTARTS; i++) { |
| /* Load the microcode, firmware, and eeprom. |
| * Also start the clocks. */ |
| rc = ipw_load(priv); |
| if (rc) { |
| IPW_ERROR("Unable to load firmware: %d\n", rc); |
| return rc; |
| } |
| |
| ipw_init_ordinals(priv); |
| if (!(priv->config & CFG_CUSTOM_MAC)) |
| eeprom_parse_mac(priv, priv->mac_addr); |
| memcpy(priv->net_dev->dev_addr, priv->mac_addr, ETH_ALEN); |
| |
| ipw_set_geo(priv); |
| |
| if (priv->status & STATUS_RF_KILL_SW) { |
| IPW_WARNING("Radio disabled by module parameter.\n"); |
| return 0; |
| } else if (rf_kill_active(priv)) { |
| IPW_WARNING("Radio Frequency Kill Switch is On:\n" |
| "Kill switch must be turned off for " |
| "wireless networking to work.\n"); |
| schedule_delayed_work(&priv->rf_kill, 2 * HZ); |
| return 0; |
| } |
| |
| rc = ipw_config(priv); |
| if (!rc) { |
| IPW_DEBUG_INFO("Configured device on count %i\n", i); |
| |
| /* If configure to try and auto-associate, kick |
| * off a scan. */ |
| schedule_delayed_work(&priv->request_scan, 0); |
| |
| return 0; |
| } |
| |
| IPW_DEBUG_INFO("Device configuration failed: 0x%08X\n", rc); |
| IPW_DEBUG_INFO("Failed to config device on retry %d of %d\n", |
| i, MAX_HW_RESTARTS); |
| |
| /* We had an error bringing up the hardware, so take it |
| * all the way back down so we can try again */ |
| ipw_down(priv); |
| } |
| |
| /* tried to restart and config the device for as long as our |
| * patience could withstand */ |
| IPW_ERROR("Unable to initialize device after %d attempts.\n", i); |
| |
| return -EIO; |
| } |
| |
| static void ipw_bg_up(struct work_struct *work) |
| { |
| struct ipw_priv *priv = |
| container_of(work, struct ipw_priv, up); |
| mutex_lock(&priv->mutex); |
| ipw_up(priv); |
| mutex_unlock(&priv->mutex); |
| } |
| |
| static void ipw_deinit(struct ipw_priv *priv) |
| { |
| int i; |
| |
| if (priv->status & STATUS_SCANNING) { |
| IPW_DEBUG_INFO("Aborting scan during shutdown.\n"); |
| ipw_abort_scan(priv); |
| } |
| |
| if (priv->status & STATUS_ASSOCIATED) { |
| IPW_DEBUG_INFO("Disassociating during shutdown.\n"); |
| ipw_disassociate(priv); |
| } |
| |
| ipw_led_shutdown(priv); |
| |
| /* Wait up to 1s for status to change to not scanning and not |
| * associated (disassociation can take a while for a ful 802.11 |
| * exchange */ |
| for (i = 1000; i && (priv->status & |
| (STATUS_DISASSOCIATING | |
| STATUS_ASSOCIATED | STATUS_SCANNING)); i--) |
| udelay(10); |
| |
| if (priv->status & (STATUS_DISASSOCIATING | |
| STATUS_ASSOCIATED | STATUS_SCANNING)) |
| IPW_DEBUG_INFO("Still associated or scanning...\n"); |
| else |
| IPW_DEBUG_INFO("Took %dms to de-init\n", 1000 - i); |
| |
| /* Attempt to disable the card */ |
| ipw_send_card_disable(priv, 0); |
| |
| priv->status &= ~STATUS_INIT; |
| } |
| |
| static void ipw_down(struct ipw_priv *priv) |
| { |
| int exit_pending = priv->status & STATUS_EXIT_PENDING; |
| |
| priv->status |= STATUS_EXIT_PENDING; |
| |
| if (ipw_is_init(priv)) |
| ipw_deinit(priv); |
| |
| /* Wipe out the EXIT_PENDING status bit if we are not actually |
| * exiting the module */ |
| if (!exit_pending) |
| priv->status &= ~STATUS_EXIT_PENDING; |
| |
| /* tell the device to stop sending interrupts */ |
| ipw_disable_interrupts(priv); |
| |
| /* Clear all bits but the RF Kill */ |
| priv->status &= STATUS_RF_KILL_MASK | STATUS_EXIT_PENDING; |
| netif_carrier_off(priv->net_dev); |
| |
| ipw_stop_nic(priv); |
| |
| ipw_led_radio_off(priv); |
| } |
| |
| static void ipw_bg_down(struct work_struct *work) |
| { |
| struct ipw_priv *priv = |
| container_of(work, struct ipw_priv, down); |
| mutex_lock(&priv->mutex); |
| ipw_down(priv); |
| mutex_unlock(&priv->mutex); |
| } |
| |
| static int ipw_wdev_init(struct net_device *dev) |
| { |
| int i, rc = 0; |
| struct ipw_priv *priv = libipw_priv(dev); |
| const struct libipw_geo *geo = libipw_get_geo(priv->ieee); |
| struct wireless_dev *wdev = &priv->ieee->wdev; |
| |
| memcpy(wdev->wiphy->perm_addr, priv->mac_addr, ETH_ALEN); |
| |
| /* fill-out priv->ieee->bg_band */ |
| if (geo->bg_channels) { |
| struct ieee80211_supported_band *bg_band = &priv->ieee->bg_band; |
| |
| bg_band->band = NL80211_BAND_2GHZ; |
| bg_band->n_channels = geo->bg_channels; |
| bg_band->channels = kcalloc(geo->bg_channels, |
| sizeof(struct ieee80211_channel), |
| GFP_KERNEL); |
| if (!bg_band->channels) { |
| rc = -ENOMEM; |
| goto out; |
| } |
| /* translate geo->bg to bg_band.channels */ |
| for (i = 0; i < geo->bg_channels; i++) { |
| bg_band->channels[i].band = NL80211_BAND_2GHZ; |
| bg_band->channels[i].center_freq = geo->bg[i].freq; |
| bg_band->channels[i].hw_value = geo->bg[i].channel; |
| bg_band->channels[i].max_power = geo->bg[i].max_power; |
| if (geo->bg[i].flags & LIBIPW_CH_PASSIVE_ONLY) |
| bg_band->channels[i].flags |= |
| IEEE80211_CHAN_NO_IR; |
| if (geo->bg[i].flags & LIBIPW_CH_NO_IBSS) |
| bg_band->channels[i].flags |= |
| IEEE80211_CHAN_NO_IR; |
| if (geo->bg[i].flags & LIBIPW_CH_RADAR_DETECT) |
| bg_band->channels[i].flags |= |
| IEEE80211_CHAN_RADAR; |
| /* No equivalent for LIBIPW_CH_80211H_RULES, |
| LIBIPW_CH_UNIFORM_SPREADING, or |
| LIBIPW_CH_B_ONLY... */ |
| } |
| /* point at bitrate info */ |
| bg_band->bitrates = ipw2200_bg_rates; |
| bg_band->n_bitrates = ipw2200_num_bg_rates; |
| |
| wdev->wiphy->bands[NL80211_BAND_2GHZ] = bg_band; |
| } |
| |
| /* fill-out priv->ieee->a_band */ |
| if (geo->a_channels) { |
| struct ieee80211_supported_band *a_band = &priv->ieee->a_band; |
| |
| a_band->band = NL80211_BAND_5GHZ; |
| a_band->n_channels = geo->a_channels; |
| a_band->channels = kcalloc(geo->a_channels, |
| sizeof(struct ieee80211_channel), |
| GFP_KERNEL); |
| if (!a_band->channels) { |
| rc = -ENOMEM; |
| goto out; |
| } |
| /* translate geo->a to a_band.channels */ |
| for (i = 0; i < geo->a_channels; i++) { |
| a_band->channels[i].band = NL80211_BAND_5GHZ; |
| a_band->channels[i].center_freq = geo->a[i].freq; |
| a_band->channels[i].hw_value = geo->a[i].channel; |
| a_band->channels[i].max_power = geo->a[i].max_power; |
| if (geo->a[i].flags & LIBIPW_CH_PASSIVE_ONLY) |
| a_band->channels[i].flags |= |
| IEEE80211_CHAN_NO_IR; |
| if (geo->a[i].flags & LIBIPW_CH_NO_IBSS) |
| a_band->channels[i].flags |= |
| IEEE80211_CHAN_NO_IR; |
| if (geo->a[i].flags & LIBIPW_CH_RADAR_DETECT) |
| a_band->channels[i].flags |= |
| IEEE80211_CHAN_RADAR; |
| /* No equivalent for LIBIPW_CH_80211H_RULES, |
| LIBIPW_CH_UNIFORM_SPREADING, or |
| LIBIPW_CH_B_ONLY... */ |
| } |
| /* point at bitrate info */ |
| a_band->bitrates = ipw2200_a_rates; |
| a_band->n_bitrates = ipw2200_num_a_rates; |
| |
| wdev->wiphy->bands[NL80211_BAND_5GHZ] = a_band; |
| } |
| |
| wdev->wiphy->cipher_suites = ipw_cipher_suites; |
| wdev->wiphy->n_cipher_suites = ARRAY_SIZE(ipw_cipher_suites); |
| |
| set_wiphy_dev(wdev->wiphy, &priv->pci_dev->dev); |
| |
| /* With that information in place, we can now register the wiphy... */ |
| rc = wiphy_register(wdev->wiphy); |
| if (rc) |
| goto out; |
| |
| return 0; |
| out: |
| kfree(priv->ieee->a_band.channels); |
| kfree(priv->ieee->bg_band.channels); |
| return rc; |
| } |
| |
| /* PCI driver stuff */ |
| static const struct pci_device_id card_ids[] = { |
| {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2701, 0, 0, 0}, |
| {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2702, 0, 0, 0}, |
| {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2711, 0, 0, 0}, |
| {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2712, 0, 0, 0}, |
| {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2721, 0, 0, 0}, |
| {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2722, 0, 0, 0}, |
| {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2731, 0, 0, 0}, |
| {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2732, 0, 0, 0}, |
| {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2741, 0, 0, 0}, |
| {PCI_VENDOR_ID_INTEL, 0x1043, 0x103c, 0x2741, 0, 0, 0}, |
| {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2742, 0, 0, 0}, |
| {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2751, 0, 0, 0}, |
| {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2752, 0, 0, 0}, |
| {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2753, 0, 0, 0}, |
| {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2754, 0, 0, 0}, |
| {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2761, 0, 0, 0}, |
| {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2762, 0, 0, 0}, |
| {PCI_VDEVICE(INTEL, 0x104f), 0}, |
| {PCI_VDEVICE(INTEL, 0x4220), 0}, /* BG */ |
| {PCI_VDEVICE(INTEL, 0x4221), 0}, /* BG */ |
| {PCI_VDEVICE(INTEL, 0x4223), 0}, /* ABG */ |
| {PCI_VDEVICE(INTEL, 0x4224), 0}, /* ABG */ |
| |
| /* required last entry */ |
| {0,} |
| }; |
| |
| MODULE_DEVICE_TABLE(pci, card_ids); |
| |
| static struct attribute *ipw_sysfs_entries[] = { |
| &dev_attr_rf_kill.attr, |
| &dev_attr_direct_dword.attr, |
| &dev_attr_indirect_byte.attr, |
| &dev_attr_indirect_dword.attr, |
| &dev_attr_mem_gpio_reg.attr, |
| &dev_attr_command_event_reg.attr, |
| &dev_attr_nic_type.attr, |
| &dev_attr_status.attr, |
| &dev_attr_cfg.attr, |
| &dev_attr_error.attr, |
| &dev_attr_event_log.attr, |
| &dev_attr_cmd_log.attr, |
| &dev_attr_eeprom_delay.attr, |
| &dev_attr_ucode_version.attr, |
| &dev_attr_rtc.attr, |
| &dev_attr_scan_age.attr, |
| &dev_attr_led.attr, |
| &dev_attr_speed_scan.attr, |
| &dev_attr_net_stats.attr, |
| &dev_attr_channels.attr, |
| #ifdef CONFIG_IPW2200_PROMISCUOUS |
| &dev_attr_rtap_iface.attr, |
| &dev_attr_rtap_filter.attr, |
| #endif |
| NULL |
| }; |
| |
| static const struct attribute_group ipw_attribute_group = { |
| .name = NULL, /* put in device directory */ |
| .attrs = ipw_sysfs_entries, |
| }; |
| |
| #ifdef CONFIG_IPW2200_PROMISCUOUS |
| static int ipw_prom_open(struct net_device *dev) |
| { |
| struct ipw_prom_priv *prom_priv = libipw_priv(dev); |
| struct ipw_priv *priv = prom_priv->priv; |
| |
| IPW_DEBUG_INFO("prom dev->open\n"); |
| netif_carrier_off(dev); |
| |
| if (priv->ieee->iw_mode != IW_MODE_MONITOR) { |
| priv->sys_config.accept_all_data_frames = 1; |
| priv->sys_config.accept_non_directed_frames = 1; |
| priv->sys_config.accept_all_mgmt_bcpr = 1; |
| priv->sys_config.accept_all_mgmt_frames = 1; |
| |
| ipw_send_system_config(priv); |
| } |
| |
| return 0; |
| } |
| |
| static int ipw_prom_stop(struct net_device *dev) |
| { |
| struct ipw_prom_priv *prom_priv = libipw_priv(dev); |
| struct ipw_priv *priv = prom_priv->priv; |
| |
| IPW_DEBUG_INFO("prom dev->stop\n"); |
| |
| if (priv->ieee->iw_mode != IW_MODE_MONITOR) { |
| priv->sys_config.accept_all_data_frames = 0; |
| priv->sys_config.accept_non_directed_frames = 0; |
| priv->sys_config.accept_all_mgmt_bcpr = 0; |
| priv->sys_config.accept_all_mgmt_frames = 0; |
| |
| ipw_send_system_config(priv); |
| } |
| |
| return 0; |
| } |
| |
| static netdev_tx_t ipw_prom_hard_start_xmit(struct sk_buff *skb, |
| struct net_device *dev) |
| { |
| IPW_DEBUG_INFO("prom dev->xmit\n"); |
| dev_kfree_skb(skb); |
| return NETDEV_TX_OK; |
| } |
| |
| static const struct net_device_ops ipw_prom_netdev_ops = { |
| .ndo_open = ipw_prom_open, |
| .ndo_stop = ipw_prom_stop, |
| .ndo_start_xmit = ipw_prom_hard_start_xmit, |
| .ndo_set_mac_address = eth_mac_addr, |
| .ndo_validate_addr = eth_validate_addr, |
| }; |
| |
| static int ipw_prom_alloc(struct ipw_priv *priv) |
| { |
| int rc = 0; |
| |
| if (priv->prom_net_dev) |
| return -EPERM; |
| |
| priv->prom_net_dev = alloc_libipw(sizeof(struct ipw_prom_priv), 1); |
| if (priv->prom_net_dev == NULL) |
| return -ENOMEM; |
| |
| priv->prom_priv = libipw_priv(priv->prom_net_dev); |
| priv->prom_priv->ieee = netdev_priv(priv->prom_net_dev); |
| priv->prom_priv->priv = priv; |
| |
| strcpy(priv->prom_net_dev->name, "rtap%d"); |
| memcpy(priv->prom_net_dev->dev_addr, priv->mac_addr, ETH_ALEN); |
| |
| priv->prom_net_dev->type = ARPHRD_IEEE80211_RADIOTAP; |
| priv->prom_net_dev->netdev_ops = &ipw_prom_netdev_ops; |
| |
| priv->prom_net_dev->min_mtu = 68; |
| priv->prom_net_dev->max_mtu = LIBIPW_DATA_LEN; |
| |
| priv->prom_priv->ieee->iw_mode = IW_MODE_MONITOR; |
| SET_NETDEV_DEV(priv->prom_net_dev, &priv->pci_dev->dev); |
| |
| rc = register_netdev(priv->prom_net_dev); |
| if (rc) { |
| free_libipw(priv->prom_net_dev, 1); |
| priv->prom_net_dev = NULL; |
| return rc; |
| } |
| |
| return 0; |
| } |
| |
| static void ipw_prom_free(struct ipw_priv *priv) |
| { |
| if (!priv->prom_net_dev) |
| return; |
| |
| unregister_netdev(priv->prom_net_dev); |
| free_libipw(priv->prom_net_dev, 1); |
| |
| priv->prom_net_dev = NULL; |
| } |
| |
| #endif |
| |
| static const struct net_device_ops ipw_netdev_ops = { |
| .ndo_open = ipw_net_open, |
| .ndo_stop = ipw_net_stop, |
| .ndo_set_rx_mode = ipw_net_set_multicast_list, |
| .ndo_set_mac_address = ipw_net_set_mac_address, |
| .ndo_start_xmit = libipw_xmit, |
| .ndo_validate_addr = eth_validate_addr, |
| }; |
| |
| static int ipw_pci_probe(struct pci_dev *pdev, |
| const struct pci_device_id *ent) |
| { |
| int err = 0; |
| struct net_device *net_dev; |
| void __iomem *base; |
| u32 length, val; |
| struct ipw_priv *priv; |
| int i; |
| |
| net_dev = alloc_libipw(sizeof(struct ipw_priv), 0); |
| if (net_dev == NULL) { |
| err = -ENOMEM; |
| goto out; |
| } |
| |
| priv = libipw_priv(net_dev); |
| priv->ieee = netdev_priv(net_dev); |
| |
| priv->net_dev = net_dev; |
| priv->pci_dev = pdev; |
| ipw_debug_level = debug; |
| spin_lock_init(&priv->irq_lock); |
| spin_lock_init(&priv->lock); |
| for (i = 0; i < IPW_IBSS_MAC_HASH_SIZE; i++) |
| INIT_LIST_HEAD(&priv->ibss_mac_hash[i]); |
| |
| mutex_init(&priv->mutex); |
| if (pci_enable_device(pdev)) { |
| err = -ENODEV; |
| goto out_free_libipw; |
| } |
| |
| pci_set_master(pdev); |
| |
| err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32)); |
| if (!err) |
| err = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32)); |
| if (err) { |
| printk(KERN_WARNING DRV_NAME ": No suitable DMA available.\n"); |
| goto out_pci_disable_device; |
| } |
| |
| pci_set_drvdata(pdev, priv); |
| |
| err = pci_request_regions(pdev, DRV_NAME); |
| if (err) |
| goto out_pci_disable_device; |
| |
| /* We disable the RETRY_TIMEOUT register (0x41) to keep |
| * PCI Tx retries from interfering with C3 CPU state */ |
| pci_read_config_dword(pdev, 0x40, &val); |
| if ((val & 0x0000ff00) != 0) |
| pci_write_config_dword(pdev, 0x40, val & 0xffff00ff); |
| |
| length = pci_resource_len(pdev, 0); |
| priv->hw_len = length; |
| |
| base = pci_ioremap_bar(pdev, 0); |
| if (!base) { |
| err = -ENODEV; |
| goto out_pci_release_regions; |
| } |
| |
| priv->hw_base = base; |
| IPW_DEBUG_INFO("pci_resource_len = 0x%08x\n", length); |
| IPW_DEBUG_INFO("pci_resource_base = %p\n", base); |
| |
| err = ipw_setup_deferred_work(priv); |
| if (err) { |
| IPW_ERROR("Unable to setup deferred work\n"); |
| goto out_iounmap; |
| } |
| |
| ipw_sw_reset(priv, 1); |
| |
| err = request_irq(pdev->irq, ipw_isr, IRQF_SHARED, DRV_NAME, priv); |
| if (err) { |
| IPW_ERROR("Error allocating IRQ %d\n", pdev->irq); |
| goto out_iounmap; |
| } |
| |
| SET_NETDEV_DEV(net_dev, &pdev->dev); |
| |
| mutex_lock(&priv->mutex); |
| |
| priv->ieee->hard_start_xmit = ipw_net_hard_start_xmit; |
| priv->ieee->set_security = shim__set_security; |
| priv->ieee->is_queue_full = ipw_net_is_queue_full; |
| |
| #ifdef CONFIG_IPW2200_QOS |
| priv->ieee->is_qos_active = ipw_is_qos_active; |
| priv->ieee->handle_probe_response = ipw_handle_beacon; |
| priv->ieee->handle_beacon = ipw_handle_probe_response; |
| priv->ieee->handle_assoc_response = ipw_handle_assoc_response; |
| #endif /* CONFIG_IPW2200_QOS */ |
| |
| priv->ieee->perfect_rssi = -20; |
| priv->ieee->worst_rssi = -85; |
| |
| net_dev->netdev_ops = &ipw_netdev_ops; |
| priv->wireless_data.spy_data = &priv->ieee->spy_data; |
| net_dev->wireless_data = &priv->wireless_data; |
| net_dev->wireless_handlers = &ipw_wx_handler_def; |
| net_dev->ethtool_ops = &ipw_ethtool_ops; |
| |
| net_dev->min_mtu = 68; |
| net_dev->max_mtu = LIBIPW_DATA_LEN; |
| |
| err = sysfs_create_group(&pdev->dev.kobj, &ipw_attribute_group); |
| if (err) { |
| IPW_ERROR("failed to create sysfs device attributes\n"); |
| mutex_unlock(&priv->mutex); |
| goto out_release_irq; |
| } |
| |
| if (ipw_up(priv)) { |
| mutex_unlock(&priv->mutex); |
| err = -EIO; |
| goto out_remove_sysfs; |
| } |
| |
| mutex_unlock(&priv->mutex); |
| |
| err = ipw_wdev_init(net_dev); |
| if (err) { |
| IPW_ERROR("failed to register wireless device\n"); |
| goto out_remove_sysfs; |
| } |
| |
| err = register_netdev(net_dev); |
| if (err) { |
| IPW_ERROR("failed to register network device\n"); |
| goto out_unregister_wiphy; |
| } |
| |
| #ifdef CONFIG_IPW2200_PROMISCUOUS |
| if (rtap_iface) { |
| err = ipw_prom_alloc(priv); |
| if (err) { |
| IPW_ERROR("Failed to register promiscuous network " |
| "device (error %d).\n", err); |
| unregister_netdev(priv->net_dev); |
| goto out_unregister_wiphy; |
| } |
| } |
| #endif |
| |
| printk(KERN_INFO DRV_NAME ": Detected geography %s (%d 802.11bg " |
| "channels, %d 802.11a channels)\n", |
| priv->ieee->geo.name, priv->ieee->geo.bg_channels, |
| priv->ieee->geo.a_channels); |
| |
| return 0; |
| |
| out_unregister_wiphy: |
| wiphy_unregister(priv->ieee->wdev.wiphy); |
| kfree(priv->ieee->a_band.channels); |
| kfree(priv->ieee->bg_band.channels); |
| out_remove_sysfs: |
| sysfs_remove_group(&pdev->dev.kobj, &ipw_attribute_group); |
| out_release_irq: |
| free_irq(pdev->irq, priv); |
| out_iounmap: |
| iounmap(priv->hw_base); |
| out_pci_release_regions: |
| pci_release_regions(pdev); |
| out_pci_disable_device: |
| pci_disable_device(pdev); |
| out_free_libipw: |
| free_libipw(priv->net_dev, 0); |
| out: |
| return err; |
| } |
| |
| static void ipw_pci_remove(struct pci_dev *pdev) |
| { |
| struct ipw_priv *priv = pci_get_drvdata(pdev); |
| struct list_head *p, *q; |
| int i; |
| |
| if (!priv) |
| return; |
| |
| mutex_lock(&priv->mutex); |
| |
| priv->status |= STATUS_EXIT_PENDING; |
| ipw_down(priv); |
| sysfs_remove_group(&pdev->dev.kobj, &ipw_attribute_group); |
| |
| mutex_unlock(&priv->mutex); |
| |
| unregister_netdev(priv->net_dev); |
| |
| if (priv->rxq) { |
| ipw_rx_queue_free(priv, priv->rxq); |
| priv->rxq = NULL; |
| } |
| ipw_tx_queue_free(priv); |
| |
| if (priv->cmdlog) { |
| kfree(priv->cmdlog); |
| priv->cmdlog = NULL; |
| } |
| |
| /* make sure all works are inactive */ |
| cancel_delayed_work_sync(&priv->adhoc_check); |
| cancel_work_sync(&priv->associate); |
| cancel_work_sync(&priv->disassociate); |
| cancel_work_sync(&priv->system_config); |
| cancel_work_sync(&priv->rx_replenish); |
| cancel_work_sync(&priv->adapter_restart); |
| cancel_delayed_work_sync(&priv->rf_kill); |
| cancel_work_sync(&priv->up); |
| cancel_work_sync(&priv->down); |
| cancel_delayed_work_sync(&priv->request_scan); |
| cancel_delayed_work_sync(&priv->request_direct_scan); |
| cancel_delayed_work_sync(&priv->request_passive_scan); |
| cancel_delayed_work_sync(&priv->scan_event); |
| cancel_delayed_work_sync(&priv->gather_stats); |
| cancel_work_sync(&priv->abort_scan); |
| cancel_work_sync(&priv->roam); |
| cancel_delayed_work_sync(&priv->scan_check); |
| cancel_work_sync(&priv->link_up); |
| cancel_work_sync(&priv->link_down); |
| cancel_delayed_work_sync(&priv->led_link_on); |
| cancel_delayed_work_sync(&priv->led_link_off); |
| cancel_delayed_work_sync(&priv->led_act_off); |
| cancel_work_sync(&priv->merge_networks); |
| |
| /* Free MAC hash list for ADHOC */ |
| for (i = 0; i < IPW_IBSS_MAC_HASH_SIZE; i++) { |
| list_for_each_safe(p, q, &priv->ibss_mac_hash[i]) { |
| list_del(p); |
| kfree(list_entry(p, struct ipw_ibss_seq, list)); |
| } |
| } |
| |
| kfree(priv->error); |
| priv->error = NULL; |
| |
| #ifdef CONFIG_IPW2200_PROMISCUOUS |
| ipw_prom_free(priv); |
| #endif |
| |
| free_irq(pdev->irq, priv); |
| iounmap(priv->hw_base); |
| pci_release_regions(pdev); |
| pci_disable_device(pdev); |
| /* wiphy_unregister needs to be here, before free_libipw */ |
| wiphy_unregister(priv->ieee->wdev.wiphy); |
| kfree(priv->ieee->a_band.channels); |
| kfree(priv->ieee->bg_band.channels); |
| free_libipw(priv->net_dev, 0); |
| free_firmware(); |
| } |
| |
| #ifdef CONFIG_PM |
| static int ipw_pci_suspend(struct pci_dev *pdev, pm_message_t state) |
| { |
| struct ipw_priv *priv = pci_get_drvdata(pdev); |
| struct net_device *dev = priv->net_dev; |
| |
| printk(KERN_INFO "%s: Going into suspend...\n", dev->name); |
| |
| /* Take down the device; powers it off, etc. */ |
| ipw_down(priv); |
| |
| /* Remove the PRESENT state of the device */ |
| netif_device_detach(dev); |
| |
| pci_save_state(pdev); |
| pci_disable_device(pdev); |
| pci_set_power_state(pdev, pci_choose_state(pdev, state)); |
| |
| priv->suspend_at = ktime_get_boottime_seconds(); |
| |
| return 0; |
| } |
| |
| static int ipw_pci_resume(struct pci_dev *pdev) |
| { |
| struct ipw_priv *priv = pci_get_drvdata(pdev); |
| struct net_device *dev = priv->net_dev; |
| int err; |
| u32 val; |
| |
| printk(KERN_INFO "%s: Coming out of suspend...\n", dev->name); |
| |
| pci_set_power_state(pdev, PCI_D0); |
| err = pci_enable_device(pdev); |
| if (err) { |
| printk(KERN_ERR "%s: pci_enable_device failed on resume\n", |
| dev->name); |
| return err; |
| } |
| pci_restore_state(pdev); |
| |
| /* |
| * Suspend/Resume resets the PCI configuration space, so we have to |
| * re-disable the RETRY_TIMEOUT register (0x41) to keep PCI Tx retries |
| * from interfering with C3 CPU state. pci_restore_state won't help |
| * here since it only restores the first 64 bytes pci config header. |
| */ |
| pci_read_config_dword(pdev, 0x40, &val); |
| if ((val & 0x0000ff00) != 0) |
| pci_write_config_dword(pdev, 0x40, val & 0xffff00ff); |
| |
| /* Set the device back into the PRESENT state; this will also wake |
| * the queue of needed */ |
| netif_device_attach(dev); |
| |
| priv->suspend_time = ktime_get_boottime_seconds() - priv->suspend_at; |
| |
| /* Bring the device back up */ |
| schedule_work(&priv->up); |
| |
| return 0; |
| } |
| #endif |
| |
| static void ipw_pci_shutdown(struct pci_dev *pdev) |
| { |
| struct ipw_priv *priv = pci_get_drvdata(pdev); |
| |
| /* Take down the device; powers it off, etc. */ |
| ipw_down(priv); |
| |
| pci_disable_device(pdev); |
| } |
| |
| /* driver initialization stuff */ |
| static struct pci_driver ipw_driver = { |
| .name = DRV_NAME, |
| .id_table = card_ids, |
| .probe = ipw_pci_probe, |
| .remove = ipw_pci_remove, |
| #ifdef CONFIG_PM |
| .suspend = ipw_pci_suspend, |
| .resume = ipw_pci_resume, |
| #endif |
| .shutdown = ipw_pci_shutdown, |
| }; |
| |
| static int __init ipw_init(void) |
| { |
| int ret; |
| |
| printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n"); |
| printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n"); |
| |
| ret = pci_register_driver(&ipw_driver); |
| if (ret) { |
| IPW_ERROR("Unable to initialize PCI module\n"); |
| return ret; |
| } |
| |
| ret = driver_create_file(&ipw_driver.driver, &driver_attr_debug_level); |
| if (ret) { |
| IPW_ERROR("Unable to create driver sysfs file\n"); |
| pci_unregister_driver(&ipw_driver); |
| return ret; |
| } |
| |
| return ret; |
| } |
| |
| static void __exit ipw_exit(void) |
| { |
| driver_remove_file(&ipw_driver.driver, &driver_attr_debug_level); |
| pci_unregister_driver(&ipw_driver); |
| } |
| |
| module_param(disable, int, 0444); |
| MODULE_PARM_DESC(disable, "manually disable the radio (default 0 [radio on])"); |
| |
| module_param(associate, int, 0444); |
| MODULE_PARM_DESC(associate, "auto associate when scanning (default off)"); |
| |
| module_param(auto_create, int, 0444); |
| MODULE_PARM_DESC(auto_create, "auto create adhoc network (default on)"); |
| |
| module_param_named(led, led_support, int, 0444); |
| MODULE_PARM_DESC(led, "enable led control on some systems (default 1 on)"); |
| |
| module_param(debug, int, 0444); |
| MODULE_PARM_DESC(debug, "debug output mask"); |
| |
| module_param_named(channel, default_channel, int, 0444); |
| MODULE_PARM_DESC(channel, "channel to limit associate to (default 0 [ANY])"); |
| |
| #ifdef CONFIG_IPW2200_PROMISCUOUS |
| module_param(rtap_iface, int, 0444); |
| MODULE_PARM_DESC(rtap_iface, "create the rtap interface (1 - create, default 0)"); |
| #endif |
| |
| #ifdef CONFIG_IPW2200_QOS |
| module_param(qos_enable, int, 0444); |
| MODULE_PARM_DESC(qos_enable, "enable all QoS functionalities"); |
| |
| module_param(qos_burst_enable, int, 0444); |
| MODULE_PARM_DESC(qos_burst_enable, "enable QoS burst mode"); |
| |
| module_param(qos_no_ack_mask, int, 0444); |
| MODULE_PARM_DESC(qos_no_ack_mask, "mask Tx_Queue to no ack"); |
| |
| module_param(burst_duration_CCK, int, 0444); |
| MODULE_PARM_DESC(burst_duration_CCK, "set CCK burst value"); |
| |
| module_param(burst_duration_OFDM, int, 0444); |
| MODULE_PARM_DESC(burst_duration_OFDM, "set OFDM burst value"); |
| #endif /* CONFIG_IPW2200_QOS */ |
| |
| #ifdef CONFIG_IPW2200_MONITOR |
| module_param_named(mode, network_mode, int, 0444); |
| MODULE_PARM_DESC(mode, "network mode (0=BSS,1=IBSS,2=Monitor)"); |
| #else |
| module_param_named(mode, network_mode, int, 0444); |
| MODULE_PARM_DESC(mode, "network mode (0=BSS,1=IBSS)"); |
| #endif |
| |
| module_param(bt_coexist, int, 0444); |
| MODULE_PARM_DESC(bt_coexist, "enable bluetooth coexistence (default off)"); |
| |
| module_param(hwcrypto, int, 0444); |
| MODULE_PARM_DESC(hwcrypto, "enable hardware crypto (default off)"); |
| |
| module_param(cmdlog, int, 0444); |
| MODULE_PARM_DESC(cmdlog, |
| "allocate a ring buffer for logging firmware commands"); |
| |
| module_param(roaming, int, 0444); |
| MODULE_PARM_DESC(roaming, "enable roaming support (default on)"); |
| |
| module_param(antenna, int, 0444); |
| MODULE_PARM_DESC(antenna, "select antenna 1=Main, 3=Aux, default 0 [both], 2=slow_diversity (choose the one with lower background noise)"); |
| |
| module_exit(ipw_exit); |
| module_init(ipw_init); |