| /* $Id: b1dma.c,v 1.1.2.3 2004/02/10 01:07:12 keil Exp $ |
| * |
| * Common module for AVM B1 cards that support dma with AMCC |
| * |
| * Copyright 2000 by Carsten Paeth <calle@calle.de> |
| * |
| * This software may be used and distributed according to the terms |
| * of the GNU General Public License, incorporated herein by reference. |
| * |
| */ |
| |
| #include <linux/module.h> |
| #include <linux/kernel.h> |
| #include <linux/proc_fs.h> |
| #include <linux/seq_file.h> |
| #include <linux/skbuff.h> |
| #include <linux/delay.h> |
| #include <linux/mm.h> |
| #include <linux/interrupt.h> |
| #include <linux/ioport.h> |
| #include <linux/capi.h> |
| #include <linux/kernelcapi.h> |
| #include <linux/gfp.h> |
| #include <asm/io.h> |
| #include <linux/init.h> |
| #include <linux/uaccess.h> |
| #include <linux/netdevice.h> |
| #include <linux/isdn/capilli.h> |
| #include "avmcard.h" |
| #include <linux/isdn/capicmd.h> |
| #include <linux/isdn/capiutil.h> |
| |
| static char *revision = "$Revision: 1.1.2.3 $"; |
| |
| #undef AVM_B1DMA_DEBUG |
| |
| /* ------------------------------------------------------------- */ |
| |
| MODULE_DESCRIPTION("CAPI4Linux: DMA support for active AVM cards"); |
| MODULE_AUTHOR("Carsten Paeth"); |
| MODULE_LICENSE("GPL"); |
| |
| static bool suppress_pollack = 0; |
| module_param(suppress_pollack, bool, 0); |
| |
| /* ------------------------------------------------------------- */ |
| |
| static void b1dma_dispatch_tx(avmcard *card); |
| |
| /* ------------------------------------------------------------- */ |
| |
| /* S5933 */ |
| |
| #define AMCC_RXPTR 0x24 |
| #define AMCC_RXLEN 0x28 |
| #define AMCC_TXPTR 0x2c |
| #define AMCC_TXLEN 0x30 |
| |
| #define AMCC_INTCSR 0x38 |
| # define EN_READ_TC_INT 0x00008000L |
| # define EN_WRITE_TC_INT 0x00004000L |
| # define EN_TX_TC_INT EN_READ_TC_INT |
| # define EN_RX_TC_INT EN_WRITE_TC_INT |
| # define AVM_FLAG 0x30000000L |
| |
| # define ANY_S5933_INT 0x00800000L |
| # define READ_TC_INT 0x00080000L |
| # define WRITE_TC_INT 0x00040000L |
| # define TX_TC_INT READ_TC_INT |
| # define RX_TC_INT WRITE_TC_INT |
| # define MASTER_ABORT_INT 0x00100000L |
| # define TARGET_ABORT_INT 0x00200000L |
| # define BUS_MASTER_INT 0x00200000L |
| # define ALL_INT 0x000C0000L |
| |
| #define AMCC_MCSR 0x3c |
| # define A2P_HI_PRIORITY 0x00000100L |
| # define EN_A2P_TRANSFERS 0x00000400L |
| # define P2A_HI_PRIORITY 0x00001000L |
| # define EN_P2A_TRANSFERS 0x00004000L |
| # define RESET_A2P_FLAGS 0x04000000L |
| # define RESET_P2A_FLAGS 0x02000000L |
| |
| /* ------------------------------------------------------------- */ |
| |
| static inline void b1dma_writel(avmcard *card, u32 value, int off) |
| { |
| writel(value, card->mbase + off); |
| } |
| |
| static inline u32 b1dma_readl(avmcard *card, int off) |
| { |
| return readl(card->mbase + off); |
| } |
| |
| /* ------------------------------------------------------------- */ |
| |
| static inline int b1dma_tx_empty(unsigned int port) |
| { |
| return inb(port + 0x03) & 0x1; |
| } |
| |
| static inline int b1dma_rx_full(unsigned int port) |
| { |
| return inb(port + 0x02) & 0x1; |
| } |
| |
| static int b1dma_tolink(avmcard *card, void *buf, unsigned int len) |
| { |
| unsigned long stop = jiffies + 1 * HZ; /* maximum wait time 1 sec */ |
| unsigned char *s = (unsigned char *)buf; |
| while (len--) { |
| while (!b1dma_tx_empty(card->port) |
| && time_before(jiffies, stop)); |
| if (!b1dma_tx_empty(card->port)) |
| return -1; |
| t1outp(card->port, 0x01, *s++); |
| } |
| return 0; |
| } |
| |
| static int b1dma_fromlink(avmcard *card, void *buf, unsigned int len) |
| { |
| unsigned long stop = jiffies + 1 * HZ; /* maximum wait time 1 sec */ |
| unsigned char *s = (unsigned char *)buf; |
| while (len--) { |
| while (!b1dma_rx_full(card->port) |
| && time_before(jiffies, stop)); |
| if (!b1dma_rx_full(card->port)) |
| return -1; |
| *s++ = t1inp(card->port, 0x00); |
| } |
| return 0; |
| } |
| |
| static int WriteReg(avmcard *card, u32 reg, u8 val) |
| { |
| u8 cmd = 0x00; |
| if (b1dma_tolink(card, &cmd, 1) == 0 |
| && b1dma_tolink(card, ®, 4) == 0) { |
| u32 tmp = val; |
| return b1dma_tolink(card, &tmp, 4); |
| } |
| return -1; |
| } |
| |
| static u8 ReadReg(avmcard *card, u32 reg) |
| { |
| u8 cmd = 0x01; |
| if (b1dma_tolink(card, &cmd, 1) == 0 |
| && b1dma_tolink(card, ®, 4) == 0) { |
| u32 tmp; |
| if (b1dma_fromlink(card, &tmp, 4) == 0) |
| return (u8)tmp; |
| } |
| return 0xff; |
| } |
| |
| /* ------------------------------------------------------------- */ |
| |
| static inline void _put_byte(void **pp, u8 val) |
| { |
| u8 *s = *pp; |
| *s++ = val; |
| *pp = s; |
| } |
| |
| static inline void _put_word(void **pp, u32 val) |
| { |
| u8 *s = *pp; |
| *s++ = val & 0xff; |
| *s++ = (val >> 8) & 0xff; |
| *s++ = (val >> 16) & 0xff; |
| *s++ = (val >> 24) & 0xff; |
| *pp = s; |
| } |
| |
| static inline void _put_slice(void **pp, unsigned char *dp, unsigned int len) |
| { |
| unsigned i = len; |
| _put_word(pp, i); |
| while (i-- > 0) |
| _put_byte(pp, *dp++); |
| } |
| |
| static inline u8 _get_byte(void **pp) |
| { |
| u8 *s = *pp; |
| u8 val; |
| val = *s++; |
| *pp = s; |
| return val; |
| } |
| |
| static inline u32 _get_word(void **pp) |
| { |
| u8 *s = *pp; |
| u32 val; |
| val = *s++; |
| val |= (*s++ << 8); |
| val |= (*s++ << 16); |
| val |= (*s++ << 24); |
| *pp = s; |
| return val; |
| } |
| |
| static inline u32 _get_slice(void **pp, unsigned char *dp) |
| { |
| unsigned int len, i; |
| |
| len = i = _get_word(pp); |
| while (i-- > 0) *dp++ = _get_byte(pp); |
| return len; |
| } |
| |
| /* ------------------------------------------------------------- */ |
| |
| void b1dma_reset(avmcard *card) |
| { |
| card->csr = 0x0; |
| b1dma_writel(card, card->csr, AMCC_INTCSR); |
| b1dma_writel(card, 0, AMCC_MCSR); |
| b1dma_writel(card, 0, AMCC_RXLEN); |
| b1dma_writel(card, 0, AMCC_TXLEN); |
| |
| t1outp(card->port, 0x10, 0x00); |
| t1outp(card->port, 0x07, 0x00); |
| |
| b1dma_writel(card, 0, AMCC_MCSR); |
| mdelay(10); |
| b1dma_writel(card, 0x0f000000, AMCC_MCSR); /* reset all */ |
| mdelay(10); |
| b1dma_writel(card, 0, AMCC_MCSR); |
| if (card->cardtype == avm_t1pci) |
| mdelay(42); |
| else |
| mdelay(10); |
| } |
| |
| /* ------------------------------------------------------------- */ |
| |
| static int b1dma_detect(avmcard *card) |
| { |
| b1dma_writel(card, 0, AMCC_MCSR); |
| mdelay(10); |
| b1dma_writel(card, 0x0f000000, AMCC_MCSR); /* reset all */ |
| mdelay(10); |
| b1dma_writel(card, 0, AMCC_MCSR); |
| mdelay(42); |
| |
| b1dma_writel(card, 0, AMCC_RXLEN); |
| b1dma_writel(card, 0, AMCC_TXLEN); |
| card->csr = 0x0; |
| b1dma_writel(card, card->csr, AMCC_INTCSR); |
| |
| if (b1dma_readl(card, AMCC_MCSR) != 0x000000E6) |
| return 1; |
| |
| b1dma_writel(card, 0xffffffff, AMCC_RXPTR); |
| b1dma_writel(card, 0xffffffff, AMCC_TXPTR); |
| if (b1dma_readl(card, AMCC_RXPTR) != 0xfffffffc |
| || b1dma_readl(card, AMCC_TXPTR) != 0xfffffffc) |
| return 2; |
| |
| b1dma_writel(card, 0x0, AMCC_RXPTR); |
| b1dma_writel(card, 0x0, AMCC_TXPTR); |
| if (b1dma_readl(card, AMCC_RXPTR) != 0x0 |
| || b1dma_readl(card, AMCC_TXPTR) != 0x0) |
| return 3; |
| |
| t1outp(card->port, 0x10, 0x00); |
| t1outp(card->port, 0x07, 0x00); |
| |
| t1outp(card->port, 0x02, 0x02); |
| t1outp(card->port, 0x03, 0x02); |
| |
| if ((t1inp(card->port, 0x02) & 0xFE) != 0x02 |
| || t1inp(card->port, 0x3) != 0x03) |
| return 4; |
| |
| t1outp(card->port, 0x02, 0x00); |
| t1outp(card->port, 0x03, 0x00); |
| |
| if ((t1inp(card->port, 0x02) & 0xFE) != 0x00 |
| || t1inp(card->port, 0x3) != 0x01) |
| return 5; |
| |
| return 0; |
| } |
| |
| int t1pci_detect(avmcard *card) |
| { |
| int ret; |
| |
| if ((ret = b1dma_detect(card)) != 0) |
| return ret; |
| |
| /* Transputer test */ |
| |
| if (WriteReg(card, 0x80001000, 0x11) != 0 |
| || WriteReg(card, 0x80101000, 0x22) != 0 |
| || WriteReg(card, 0x80201000, 0x33) != 0 |
| || WriteReg(card, 0x80301000, 0x44) != 0) |
| return 6; |
| |
| if (ReadReg(card, 0x80001000) != 0x11 |
| || ReadReg(card, 0x80101000) != 0x22 |
| || ReadReg(card, 0x80201000) != 0x33 |
| || ReadReg(card, 0x80301000) != 0x44) |
| return 7; |
| |
| if (WriteReg(card, 0x80001000, 0x55) != 0 |
| || WriteReg(card, 0x80101000, 0x66) != 0 |
| || WriteReg(card, 0x80201000, 0x77) != 0 |
| || WriteReg(card, 0x80301000, 0x88) != 0) |
| return 8; |
| |
| if (ReadReg(card, 0x80001000) != 0x55 |
| || ReadReg(card, 0x80101000) != 0x66 |
| || ReadReg(card, 0x80201000) != 0x77 |
| || ReadReg(card, 0x80301000) != 0x88) |
| return 9; |
| |
| return 0; |
| } |
| |
| int b1pciv4_detect(avmcard *card) |
| { |
| int ret, i; |
| |
| if ((ret = b1dma_detect(card)) != 0) |
| return ret; |
| |
| for (i = 0; i < 5; i++) { |
| if (WriteReg(card, 0x80A00000, 0x21) != 0) |
| return 6; |
| if ((ReadReg(card, 0x80A00000) & 0x01) != 0x01) |
| return 7; |
| } |
| for (i = 0; i < 5; i++) { |
| if (WriteReg(card, 0x80A00000, 0x20) != 0) |
| return 8; |
| if ((ReadReg(card, 0x80A00000) & 0x01) != 0x00) |
| return 9; |
| } |
| |
| return 0; |
| } |
| |
| static void b1dma_queue_tx(avmcard *card, struct sk_buff *skb) |
| { |
| unsigned long flags; |
| |
| spin_lock_irqsave(&card->lock, flags); |
| |
| skb_queue_tail(&card->dma->send_queue, skb); |
| |
| if (!(card->csr & EN_TX_TC_INT)) { |
| b1dma_dispatch_tx(card); |
| b1dma_writel(card, card->csr, AMCC_INTCSR); |
| } |
| |
| spin_unlock_irqrestore(&card->lock, flags); |
| } |
| |
| /* ------------------------------------------------------------- */ |
| |
| static void b1dma_dispatch_tx(avmcard *card) |
| { |
| avmcard_dmainfo *dma = card->dma; |
| struct sk_buff *skb; |
| u8 cmd, subcmd; |
| u16 len; |
| u32 txlen; |
| void *p; |
| |
| skb = skb_dequeue(&dma->send_queue); |
| |
| len = CAPIMSG_LEN(skb->data); |
| |
| if (len) { |
| cmd = CAPIMSG_COMMAND(skb->data); |
| subcmd = CAPIMSG_SUBCOMMAND(skb->data); |
| |
| p = dma->sendbuf.dmabuf; |
| |
| if (CAPICMD(cmd, subcmd) == CAPI_DATA_B3_REQ) { |
| u16 dlen = CAPIMSG_DATALEN(skb->data); |
| _put_byte(&p, SEND_DATA_B3_REQ); |
| _put_slice(&p, skb->data, len); |
| _put_slice(&p, skb->data + len, dlen); |
| } else { |
| _put_byte(&p, SEND_MESSAGE); |
| _put_slice(&p, skb->data, len); |
| } |
| txlen = (u8 *)p - (u8 *)dma->sendbuf.dmabuf; |
| #ifdef AVM_B1DMA_DEBUG |
| printk(KERN_DEBUG "tx: put msg len=%d\n", txlen); |
| #endif |
| } else { |
| txlen = skb->len - 2; |
| #ifdef AVM_B1DMA_POLLDEBUG |
| if (skb->data[2] == SEND_POLLACK) |
| printk(KERN_INFO "%s: send ack\n", card->name); |
| #endif |
| #ifdef AVM_B1DMA_DEBUG |
| printk(KERN_DEBUG "tx: put 0x%x len=%d\n", |
| skb->data[2], txlen); |
| #endif |
| skb_copy_from_linear_data_offset(skb, 2, dma->sendbuf.dmabuf, |
| skb->len - 2); |
| } |
| txlen = (txlen + 3) & ~3; |
| |
| b1dma_writel(card, dma->sendbuf.dmaaddr, AMCC_TXPTR); |
| b1dma_writel(card, txlen, AMCC_TXLEN); |
| |
| card->csr |= EN_TX_TC_INT; |
| |
| dev_kfree_skb_any(skb); |
| } |
| |
| /* ------------------------------------------------------------- */ |
| |
| static void queue_pollack(avmcard *card) |
| { |
| struct sk_buff *skb; |
| void *p; |
| |
| skb = alloc_skb(3, GFP_ATOMIC); |
| if (!skb) { |
| printk(KERN_CRIT "%s: no memory, lost poll ack\n", |
| card->name); |
| return; |
| } |
| p = skb->data; |
| _put_byte(&p, 0); |
| _put_byte(&p, 0); |
| _put_byte(&p, SEND_POLLACK); |
| skb_put(skb, (u8 *)p - (u8 *)skb->data); |
| |
| b1dma_queue_tx(card, skb); |
| } |
| |
| /* ------------------------------------------------------------- */ |
| |
| static void b1dma_handle_rx(avmcard *card) |
| { |
| avmctrl_info *cinfo = &card->ctrlinfo[0]; |
| avmcard_dmainfo *dma = card->dma; |
| struct capi_ctr *ctrl = &cinfo->capi_ctrl; |
| struct sk_buff *skb; |
| void *p = dma->recvbuf.dmabuf + 4; |
| u32 ApplId, MsgLen, DataB3Len, NCCI, WindowSize; |
| u8 b1cmd = _get_byte(&p); |
| |
| #ifdef AVM_B1DMA_DEBUG |
| printk(KERN_DEBUG "rx: 0x%x %lu\n", b1cmd, (unsigned long)dma->recvlen); |
| #endif |
| |
| switch (b1cmd) { |
| case RECEIVE_DATA_B3_IND: |
| |
| ApplId = (unsigned) _get_word(&p); |
| MsgLen = _get_slice(&p, card->msgbuf); |
| DataB3Len = _get_slice(&p, card->databuf); |
| |
| if (MsgLen < 30) { /* not CAPI 64Bit */ |
| memset(card->msgbuf + MsgLen, 0, 30 - MsgLen); |
| MsgLen = 30; |
| CAPIMSG_SETLEN(card->msgbuf, 30); |
| } |
| if (!(skb = alloc_skb(DataB3Len + MsgLen, GFP_ATOMIC))) { |
| printk(KERN_ERR "%s: incoming packet dropped\n", |
| card->name); |
| } else { |
| skb_put_data(skb, card->msgbuf, MsgLen); |
| skb_put_data(skb, card->databuf, DataB3Len); |
| capi_ctr_handle_message(ctrl, ApplId, skb); |
| } |
| break; |
| |
| case RECEIVE_MESSAGE: |
| |
| ApplId = (unsigned) _get_word(&p); |
| MsgLen = _get_slice(&p, card->msgbuf); |
| if (!(skb = alloc_skb(MsgLen, GFP_ATOMIC))) { |
| printk(KERN_ERR "%s: incoming packet dropped\n", |
| card->name); |
| } else { |
| skb_put_data(skb, card->msgbuf, MsgLen); |
| if (CAPIMSG_CMD(skb->data) == CAPI_DATA_B3_CONF) { |
| spin_lock(&card->lock); |
| capilib_data_b3_conf(&cinfo->ncci_head, ApplId, |
| CAPIMSG_NCCI(skb->data), |
| CAPIMSG_MSGID(skb->data)); |
| spin_unlock(&card->lock); |
| } |
| capi_ctr_handle_message(ctrl, ApplId, skb); |
| } |
| break; |
| |
| case RECEIVE_NEW_NCCI: |
| |
| ApplId = _get_word(&p); |
| NCCI = _get_word(&p); |
| WindowSize = _get_word(&p); |
| spin_lock(&card->lock); |
| capilib_new_ncci(&cinfo->ncci_head, ApplId, NCCI, WindowSize); |
| spin_unlock(&card->lock); |
| break; |
| |
| case RECEIVE_FREE_NCCI: |
| |
| ApplId = _get_word(&p); |
| NCCI = _get_word(&p); |
| |
| if (NCCI != 0xffffffff) { |
| spin_lock(&card->lock); |
| capilib_free_ncci(&cinfo->ncci_head, ApplId, NCCI); |
| spin_unlock(&card->lock); |
| } |
| break; |
| |
| case RECEIVE_START: |
| #ifdef AVM_B1DMA_POLLDEBUG |
| printk(KERN_INFO "%s: receive poll\n", card->name); |
| #endif |
| if (!suppress_pollack) |
| queue_pollack(card); |
| capi_ctr_resume_output(ctrl); |
| break; |
| |
| case RECEIVE_STOP: |
| capi_ctr_suspend_output(ctrl); |
| break; |
| |
| case RECEIVE_INIT: |
| |
| cinfo->versionlen = _get_slice(&p, cinfo->versionbuf); |
| b1_parse_version(cinfo); |
| printk(KERN_INFO "%s: %s-card (%s) now active\n", |
| card->name, |
| cinfo->version[VER_CARDTYPE], |
| cinfo->version[VER_DRIVER]); |
| capi_ctr_ready(ctrl); |
| break; |
| |
| case RECEIVE_TASK_READY: |
| ApplId = (unsigned) _get_word(&p); |
| MsgLen = _get_slice(&p, card->msgbuf); |
| card->msgbuf[MsgLen] = 0; |
| while (MsgLen > 0 |
| && (card->msgbuf[MsgLen - 1] == '\n' |
| || card->msgbuf[MsgLen - 1] == '\r')) { |
| card->msgbuf[MsgLen - 1] = 0; |
| MsgLen--; |
| } |
| printk(KERN_INFO "%s: task %d \"%s\" ready.\n", |
| card->name, ApplId, card->msgbuf); |
| break; |
| |
| case RECEIVE_DEBUGMSG: |
| MsgLen = _get_slice(&p, card->msgbuf); |
| card->msgbuf[MsgLen] = 0; |
| while (MsgLen > 0 |
| && (card->msgbuf[MsgLen - 1] == '\n' |
| || card->msgbuf[MsgLen - 1] == '\r')) { |
| card->msgbuf[MsgLen - 1] = 0; |
| MsgLen--; |
| } |
| printk(KERN_INFO "%s: DEBUG: %s\n", card->name, card->msgbuf); |
| break; |
| |
| default: |
| printk(KERN_ERR "%s: b1dma_interrupt: 0x%x ???\n", |
| card->name, b1cmd); |
| return; |
| } |
| } |
| |
| /* ------------------------------------------------------------- */ |
| |
| static void b1dma_handle_interrupt(avmcard *card) |
| { |
| u32 status; |
| u32 newcsr; |
| |
| spin_lock(&card->lock); |
| |
| status = b1dma_readl(card, AMCC_INTCSR); |
| if ((status & ANY_S5933_INT) == 0) { |
| spin_unlock(&card->lock); |
| return; |
| } |
| |
| newcsr = card->csr | (status & ALL_INT); |
| if (status & TX_TC_INT) newcsr &= ~EN_TX_TC_INT; |
| if (status & RX_TC_INT) newcsr &= ~EN_RX_TC_INT; |
| b1dma_writel(card, newcsr, AMCC_INTCSR); |
| |
| if ((status & RX_TC_INT) != 0) { |
| struct avmcard_dmainfo *dma = card->dma; |
| u32 rxlen; |
| if (card->dma->recvlen == 0) { |
| rxlen = b1dma_readl(card, AMCC_RXLEN); |
| if (rxlen == 0) { |
| dma->recvlen = *((u32 *)dma->recvbuf.dmabuf); |
| rxlen = (dma->recvlen + 3) & ~3; |
| b1dma_writel(card, dma->recvbuf.dmaaddr + 4, AMCC_RXPTR); |
| b1dma_writel(card, rxlen, AMCC_RXLEN); |
| #ifdef AVM_B1DMA_DEBUG |
| } else { |
| printk(KERN_ERR "%s: rx not complete (%d).\n", |
| card->name, rxlen); |
| #endif |
| } |
| } else { |
| spin_unlock(&card->lock); |
| b1dma_handle_rx(card); |
| dma->recvlen = 0; |
| spin_lock(&card->lock); |
| b1dma_writel(card, dma->recvbuf.dmaaddr, AMCC_RXPTR); |
| b1dma_writel(card, 4, AMCC_RXLEN); |
| } |
| } |
| |
| if ((status & TX_TC_INT) != 0) { |
| if (skb_queue_empty(&card->dma->send_queue)) |
| card->csr &= ~EN_TX_TC_INT; |
| else |
| b1dma_dispatch_tx(card); |
| } |
| b1dma_writel(card, card->csr, AMCC_INTCSR); |
| |
| spin_unlock(&card->lock); |
| } |
| |
| irqreturn_t b1dma_interrupt(int interrupt, void *devptr) |
| { |
| avmcard *card = devptr; |
| |
| b1dma_handle_interrupt(card); |
| return IRQ_HANDLED; |
| } |
| |
| /* ------------------------------------------------------------- */ |
| |
| static int b1dma_loaded(avmcard *card) |
| { |
| unsigned long stop; |
| unsigned char ans; |
| unsigned long tout = 2; |
| unsigned int base = card->port; |
| |
| for (stop = jiffies + tout * HZ; time_before(jiffies, stop);) { |
| if (b1_tx_empty(base)) |
| break; |
| } |
| if (!b1_tx_empty(base)) { |
| printk(KERN_ERR "%s: b1dma_loaded: tx err, corrupted t4 file ?\n", |
| card->name); |
| return 0; |
| } |
| b1_put_byte(base, SEND_POLLACK); |
| for (stop = jiffies + tout * HZ; time_before(jiffies, stop);) { |
| if (b1_rx_full(base)) { |
| if ((ans = b1_get_byte(base)) == RECEIVE_POLLDWORD) { |
| return 1; |
| } |
| printk(KERN_ERR "%s: b1dma_loaded: got 0x%x, firmware not running in dword mode\n", card->name, ans); |
| return 0; |
| } |
| } |
| printk(KERN_ERR "%s: b1dma_loaded: firmware not running\n", card->name); |
| return 0; |
| } |
| |
| /* ------------------------------------------------------------- */ |
| |
| static void b1dma_send_init(avmcard *card) |
| { |
| struct sk_buff *skb; |
| void *p; |
| |
| skb = alloc_skb(15, GFP_ATOMIC); |
| if (!skb) { |
| printk(KERN_CRIT "%s: no memory, lost register appl.\n", |
| card->name); |
| return; |
| } |
| p = skb->data; |
| _put_byte(&p, 0); |
| _put_byte(&p, 0); |
| _put_byte(&p, SEND_INIT); |
| _put_word(&p, CAPI_MAXAPPL); |
| _put_word(&p, AVM_NCCI_PER_CHANNEL * 30); |
| _put_word(&p, card->cardnr - 1); |
| skb_put(skb, (u8 *)p - (u8 *)skb->data); |
| |
| b1dma_queue_tx(card, skb); |
| } |
| |
| int b1dma_load_firmware(struct capi_ctr *ctrl, capiloaddata *data) |
| { |
| avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata); |
| avmcard *card = cinfo->card; |
| int retval; |
| |
| b1dma_reset(card); |
| |
| if ((retval = b1_load_t4file(card, &data->firmware))) { |
| b1dma_reset(card); |
| printk(KERN_ERR "%s: failed to load t4file!!\n", |
| card->name); |
| return retval; |
| } |
| |
| if (data->configuration.len > 0 && data->configuration.data) { |
| if ((retval = b1_load_config(card, &data->configuration))) { |
| b1dma_reset(card); |
| printk(KERN_ERR "%s: failed to load config!!\n", |
| card->name); |
| return retval; |
| } |
| } |
| |
| if (!b1dma_loaded(card)) { |
| b1dma_reset(card); |
| printk(KERN_ERR "%s: failed to load t4file.\n", card->name); |
| return -EIO; |
| } |
| |
| card->csr = AVM_FLAG; |
| b1dma_writel(card, card->csr, AMCC_INTCSR); |
| b1dma_writel(card, EN_A2P_TRANSFERS | EN_P2A_TRANSFERS | A2P_HI_PRIORITY | |
| P2A_HI_PRIORITY | RESET_A2P_FLAGS | RESET_P2A_FLAGS, |
| AMCC_MCSR); |
| t1outp(card->port, 0x07, 0x30); |
| t1outp(card->port, 0x10, 0xF0); |
| |
| card->dma->recvlen = 0; |
| b1dma_writel(card, card->dma->recvbuf.dmaaddr, AMCC_RXPTR); |
| b1dma_writel(card, 4, AMCC_RXLEN); |
| card->csr |= EN_RX_TC_INT; |
| b1dma_writel(card, card->csr, AMCC_INTCSR); |
| |
| b1dma_send_init(card); |
| |
| return 0; |
| } |
| |
| void b1dma_reset_ctr(struct capi_ctr *ctrl) |
| { |
| avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata); |
| avmcard *card = cinfo->card; |
| unsigned long flags; |
| |
| spin_lock_irqsave(&card->lock, flags); |
| b1dma_reset(card); |
| |
| memset(cinfo->version, 0, sizeof(cinfo->version)); |
| capilib_release(&cinfo->ncci_head); |
| spin_unlock_irqrestore(&card->lock, flags); |
| capi_ctr_down(ctrl); |
| } |
| |
| /* ------------------------------------------------------------- */ |
| |
| void b1dma_register_appl(struct capi_ctr *ctrl, |
| u16 appl, |
| capi_register_params *rp) |
| { |
| avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata); |
| avmcard *card = cinfo->card; |
| struct sk_buff *skb; |
| int want = rp->level3cnt; |
| int nconn; |
| void *p; |
| |
| if (want > 0) nconn = want; |
| else nconn = ctrl->profile.nbchannel * -want; |
| if (nconn == 0) nconn = ctrl->profile.nbchannel; |
| |
| skb = alloc_skb(23, GFP_ATOMIC); |
| if (!skb) { |
| printk(KERN_CRIT "%s: no memory, lost register appl.\n", |
| card->name); |
| return; |
| } |
| p = skb->data; |
| _put_byte(&p, 0); |
| _put_byte(&p, 0); |
| _put_byte(&p, SEND_REGISTER); |
| _put_word(&p, appl); |
| _put_word(&p, 1024 * (nconn + 1)); |
| _put_word(&p, nconn); |
| _put_word(&p, rp->datablkcnt); |
| _put_word(&p, rp->datablklen); |
| skb_put(skb, (u8 *)p - (u8 *)skb->data); |
| |
| b1dma_queue_tx(card, skb); |
| } |
| |
| /* ------------------------------------------------------------- */ |
| |
| void b1dma_release_appl(struct capi_ctr *ctrl, u16 appl) |
| { |
| avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata); |
| avmcard *card = cinfo->card; |
| struct sk_buff *skb; |
| void *p; |
| unsigned long flags; |
| |
| spin_lock_irqsave(&card->lock, flags); |
| capilib_release_appl(&cinfo->ncci_head, appl); |
| spin_unlock_irqrestore(&card->lock, flags); |
| |
| skb = alloc_skb(7, GFP_ATOMIC); |
| if (!skb) { |
| printk(KERN_CRIT "%s: no memory, lost release appl.\n", |
| card->name); |
| return; |
| } |
| p = skb->data; |
| _put_byte(&p, 0); |
| _put_byte(&p, 0); |
| _put_byte(&p, SEND_RELEASE); |
| _put_word(&p, appl); |
| |
| skb_put(skb, (u8 *)p - (u8 *)skb->data); |
| |
| b1dma_queue_tx(card, skb); |
| } |
| |
| /* ------------------------------------------------------------- */ |
| |
| u16 b1dma_send_message(struct capi_ctr *ctrl, struct sk_buff *skb) |
| { |
| avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata); |
| avmcard *card = cinfo->card; |
| u16 retval = CAPI_NOERROR; |
| |
| if (CAPIMSG_CMD(skb->data) == CAPI_DATA_B3_REQ) { |
| unsigned long flags; |
| spin_lock_irqsave(&card->lock, flags); |
| retval = capilib_data_b3_req(&cinfo->ncci_head, |
| CAPIMSG_APPID(skb->data), |
| CAPIMSG_NCCI(skb->data), |
| CAPIMSG_MSGID(skb->data)); |
| spin_unlock_irqrestore(&card->lock, flags); |
| } |
| if (retval == CAPI_NOERROR) |
| b1dma_queue_tx(card, skb); |
| |
| return retval; |
| } |
| |
| /* ------------------------------------------------------------- */ |
| |
| int b1dma_proc_show(struct seq_file *m, void *v) |
| { |
| struct capi_ctr *ctrl = m->private; |
| avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata); |
| avmcard *card = cinfo->card; |
| u8 flag; |
| char *s; |
| u32 txoff, txlen, rxoff, rxlen, csr; |
| unsigned long flags; |
| |
| seq_printf(m, "%-16s %s\n", "name", card->name); |
| seq_printf(m, "%-16s 0x%x\n", "io", card->port); |
| seq_printf(m, "%-16s %d\n", "irq", card->irq); |
| seq_printf(m, "%-16s 0x%lx\n", "membase", card->membase); |
| switch (card->cardtype) { |
| case avm_b1isa: s = "B1 ISA"; break; |
| case avm_b1pci: s = "B1 PCI"; break; |
| case avm_b1pcmcia: s = "B1 PCMCIA"; break; |
| case avm_m1: s = "M1"; break; |
| case avm_m2: s = "M2"; break; |
| case avm_t1isa: s = "T1 ISA (HEMA)"; break; |
| case avm_t1pci: s = "T1 PCI"; break; |
| case avm_c4: s = "C4"; break; |
| case avm_c2: s = "C2"; break; |
| default: s = "???"; break; |
| } |
| seq_printf(m, "%-16s %s\n", "type", s); |
| if ((s = cinfo->version[VER_DRIVER]) != NULL) |
| seq_printf(m, "%-16s %s\n", "ver_driver", s); |
| if ((s = cinfo->version[VER_CARDTYPE]) != NULL) |
| seq_printf(m, "%-16s %s\n", "ver_cardtype", s); |
| if ((s = cinfo->version[VER_SERIAL]) != NULL) |
| seq_printf(m, "%-16s %s\n", "ver_serial", s); |
| |
| if (card->cardtype != avm_m1) { |
| flag = ((u8 *)(ctrl->profile.manu))[3]; |
| if (flag) |
| seq_printf(m, "%-16s%s%s%s%s%s%s%s\n", |
| "protocol", |
| (flag & 0x01) ? " DSS1" : "", |
| (flag & 0x02) ? " CT1" : "", |
| (flag & 0x04) ? " VN3" : "", |
| (flag & 0x08) ? " NI1" : "", |
| (flag & 0x10) ? " AUSTEL" : "", |
| (flag & 0x20) ? " ESS" : "", |
| (flag & 0x40) ? " 1TR6" : "" |
| ); |
| } |
| if (card->cardtype != avm_m1) { |
| flag = ((u8 *)(ctrl->profile.manu))[5]; |
| if (flag) |
| seq_printf(m, "%-16s%s%s%s%s\n", |
| "linetype", |
| (flag & 0x01) ? " point to point" : "", |
| (flag & 0x02) ? " point to multipoint" : "", |
| (flag & 0x08) ? " leased line without D-channel" : "", |
| (flag & 0x04) ? " leased line with D-channel" : "" |
| ); |
| } |
| seq_printf(m, "%-16s %s\n", "cardname", cinfo->cardname); |
| |
| |
| spin_lock_irqsave(&card->lock, flags); |
| |
| txoff = (dma_addr_t)b1dma_readl(card, AMCC_TXPTR)-card->dma->sendbuf.dmaaddr; |
| txlen = b1dma_readl(card, AMCC_TXLEN); |
| |
| rxoff = (dma_addr_t)b1dma_readl(card, AMCC_RXPTR)-card->dma->recvbuf.dmaaddr; |
| rxlen = b1dma_readl(card, AMCC_RXLEN); |
| |
| csr = b1dma_readl(card, AMCC_INTCSR); |
| |
| spin_unlock_irqrestore(&card->lock, flags); |
| |
| seq_printf(m, "%-16s 0x%lx\n", "csr (cached)", (unsigned long)card->csr); |
| seq_printf(m, "%-16s 0x%lx\n", "csr", (unsigned long)csr); |
| seq_printf(m, "%-16s %lu\n", "txoff", (unsigned long)txoff); |
| seq_printf(m, "%-16s %lu\n", "txlen", (unsigned long)txlen); |
| seq_printf(m, "%-16s %lu\n", "rxoff", (unsigned long)rxoff); |
| seq_printf(m, "%-16s %lu\n", "rxlen", (unsigned long)rxlen); |
| |
| return 0; |
| } |
| EXPORT_SYMBOL(b1dma_proc_show); |
| |
| /* ------------------------------------------------------------- */ |
| |
| EXPORT_SYMBOL(b1dma_reset); |
| EXPORT_SYMBOL(t1pci_detect); |
| EXPORT_SYMBOL(b1pciv4_detect); |
| EXPORT_SYMBOL(b1dma_interrupt); |
| |
| EXPORT_SYMBOL(b1dma_load_firmware); |
| EXPORT_SYMBOL(b1dma_reset_ctr); |
| EXPORT_SYMBOL(b1dma_register_appl); |
| EXPORT_SYMBOL(b1dma_release_appl); |
| EXPORT_SYMBOL(b1dma_send_message); |
| |
| static int __init b1dma_init(void) |
| { |
| char *p; |
| char rev[32]; |
| |
| if ((p = strchr(revision, ':')) != NULL && p[1]) { |
| strlcpy(rev, p + 2, sizeof(rev)); |
| if ((p = strchr(rev, '$')) != NULL && p > rev) |
| *(p - 1) = 0; |
| } else |
| strcpy(rev, "1.0"); |
| |
| printk(KERN_INFO "b1dma: revision %s\n", rev); |
| |
| return 0; |
| } |
| |
| static void __exit b1dma_exit(void) |
| { |
| } |
| |
| module_init(b1dma_init); |
| module_exit(b1dma_exit); |
