| // SPDX-License-Identifier: GPL-2.0-or-later |
| /* |
| * Copyright (c) by Jaroslav Kysela <perex@perex.cz> |
| * Creative Labs, Inc. |
| * Routines for control of EMU10K1 chips |
| * |
| * BUGS: |
| * -- |
| * |
| * TODO: |
| * -- |
| */ |
| |
| #include <linux/time.h> |
| #include <sound/core.h> |
| #include <sound/emu10k1.h> |
| #include <linux/delay.h> |
| #include <linux/export.h> |
| #include "p17v.h" |
| |
| unsigned int snd_emu10k1_ptr_read(struct snd_emu10k1 * emu, unsigned int reg, unsigned int chn) |
| { |
| unsigned long flags; |
| unsigned int regptr, val; |
| unsigned int mask; |
| |
| mask = emu->audigy ? A_PTR_ADDRESS_MASK : PTR_ADDRESS_MASK; |
| regptr = ((reg << 16) & mask) | (chn & PTR_CHANNELNUM_MASK); |
| |
| if (reg & 0xff000000) { |
| unsigned char size, offset; |
| |
| size = (reg >> 24) & 0x3f; |
| offset = (reg >> 16) & 0x1f; |
| mask = ((1 << size) - 1) << offset; |
| |
| spin_lock_irqsave(&emu->emu_lock, flags); |
| outl(regptr, emu->port + PTR); |
| val = inl(emu->port + DATA); |
| spin_unlock_irqrestore(&emu->emu_lock, flags); |
| |
| return (val & mask) >> offset; |
| } else { |
| spin_lock_irqsave(&emu->emu_lock, flags); |
| outl(regptr, emu->port + PTR); |
| val = inl(emu->port + DATA); |
| spin_unlock_irqrestore(&emu->emu_lock, flags); |
| return val; |
| } |
| } |
| |
| EXPORT_SYMBOL(snd_emu10k1_ptr_read); |
| |
| void snd_emu10k1_ptr_write(struct snd_emu10k1 *emu, unsigned int reg, unsigned int chn, unsigned int data) |
| { |
| unsigned int regptr; |
| unsigned long flags; |
| unsigned int mask; |
| |
| if (snd_BUG_ON(!emu)) |
| return; |
| mask = emu->audigy ? A_PTR_ADDRESS_MASK : PTR_ADDRESS_MASK; |
| regptr = ((reg << 16) & mask) | (chn & PTR_CHANNELNUM_MASK); |
| |
| if (reg & 0xff000000) { |
| unsigned char size, offset; |
| |
| size = (reg >> 24) & 0x3f; |
| offset = (reg >> 16) & 0x1f; |
| mask = ((1 << size) - 1) << offset; |
| data = (data << offset) & mask; |
| |
| spin_lock_irqsave(&emu->emu_lock, flags); |
| outl(regptr, emu->port + PTR); |
| data |= inl(emu->port + DATA) & ~mask; |
| outl(data, emu->port + DATA); |
| spin_unlock_irqrestore(&emu->emu_lock, flags); |
| } else { |
| spin_lock_irqsave(&emu->emu_lock, flags); |
| outl(regptr, emu->port + PTR); |
| outl(data, emu->port + DATA); |
| spin_unlock_irqrestore(&emu->emu_lock, flags); |
| } |
| } |
| |
| EXPORT_SYMBOL(snd_emu10k1_ptr_write); |
| |
| unsigned int snd_emu10k1_ptr20_read(struct snd_emu10k1 * emu, |
| unsigned int reg, |
| unsigned int chn) |
| { |
| unsigned long flags; |
| unsigned int regptr, val; |
| |
| regptr = (reg << 16) | chn; |
| |
| spin_lock_irqsave(&emu->emu_lock, flags); |
| outl(regptr, emu->port + 0x20 + PTR); |
| val = inl(emu->port + 0x20 + DATA); |
| spin_unlock_irqrestore(&emu->emu_lock, flags); |
| return val; |
| } |
| |
| void snd_emu10k1_ptr20_write(struct snd_emu10k1 *emu, |
| unsigned int reg, |
| unsigned int chn, |
| unsigned int data) |
| { |
| unsigned int regptr; |
| unsigned long flags; |
| |
| regptr = (reg << 16) | chn; |
| |
| spin_lock_irqsave(&emu->emu_lock, flags); |
| outl(regptr, emu->port + 0x20 + PTR); |
| outl(data, emu->port + 0x20 + DATA); |
| spin_unlock_irqrestore(&emu->emu_lock, flags); |
| } |
| |
| int snd_emu10k1_spi_write(struct snd_emu10k1 * emu, |
| unsigned int data) |
| { |
| unsigned int reset, set; |
| unsigned int reg, tmp; |
| int n, result; |
| int err = 0; |
| |
| /* This function is not re-entrant, so protect against it. */ |
| spin_lock(&emu->spi_lock); |
| if (emu->card_capabilities->ca0108_chip) |
| reg = 0x3c; /* PTR20, reg 0x3c */ |
| else { |
| /* For other chip types the SPI register |
| * is currently unknown. */ |
| err = 1; |
| goto spi_write_exit; |
| } |
| if (data > 0xffff) { |
| /* Only 16bit values allowed */ |
| err = 1; |
| goto spi_write_exit; |
| } |
| |
| tmp = snd_emu10k1_ptr20_read(emu, reg, 0); |
| reset = (tmp & ~0x3ffff) | 0x20000; /* Set xxx20000 */ |
| set = reset | 0x10000; /* Set xxx1xxxx */ |
| snd_emu10k1_ptr20_write(emu, reg, 0, reset | data); |
| tmp = snd_emu10k1_ptr20_read(emu, reg, 0); /* write post */ |
| snd_emu10k1_ptr20_write(emu, reg, 0, set | data); |
| result = 1; |
| /* Wait for status bit to return to 0 */ |
| for (n = 0; n < 100; n++) { |
| udelay(10); |
| tmp = snd_emu10k1_ptr20_read(emu, reg, 0); |
| if (!(tmp & 0x10000)) { |
| result = 0; |
| break; |
| } |
| } |
| if (result) { |
| /* Timed out */ |
| err = 1; |
| goto spi_write_exit; |
| } |
| snd_emu10k1_ptr20_write(emu, reg, 0, reset | data); |
| tmp = snd_emu10k1_ptr20_read(emu, reg, 0); /* Write post */ |
| err = 0; |
| spi_write_exit: |
| spin_unlock(&emu->spi_lock); |
| return err; |
| } |
| |
| /* The ADC does not support i2c read, so only write is implemented */ |
| int snd_emu10k1_i2c_write(struct snd_emu10k1 *emu, |
| u32 reg, |
| u32 value) |
| { |
| u32 tmp; |
| int timeout = 0; |
| int status; |
| int retry; |
| int err = 0; |
| |
| if ((reg > 0x7f) || (value > 0x1ff)) { |
| dev_err(emu->card->dev, "i2c_write: invalid values.\n"); |
| return -EINVAL; |
| } |
| |
| /* This function is not re-entrant, so protect against it. */ |
| spin_lock(&emu->i2c_lock); |
| |
| tmp = reg << 25 | value << 16; |
| |
| /* This controls the I2C connected to the WM8775 ADC Codec */ |
| snd_emu10k1_ptr20_write(emu, P17V_I2C_1, 0, tmp); |
| tmp = snd_emu10k1_ptr20_read(emu, P17V_I2C_1, 0); /* write post */ |
| |
| for (retry = 0; retry < 10; retry++) { |
| /* Send the data to i2c */ |
| tmp = 0; |
| tmp = tmp | (I2C_A_ADC_LAST|I2C_A_ADC_START|I2C_A_ADC_ADD); |
| snd_emu10k1_ptr20_write(emu, P17V_I2C_ADDR, 0, tmp); |
| |
| /* Wait till the transaction ends */ |
| while (1) { |
| mdelay(1); |
| status = snd_emu10k1_ptr20_read(emu, P17V_I2C_ADDR, 0); |
| timeout++; |
| if ((status & I2C_A_ADC_START) == 0) |
| break; |
| |
| if (timeout > 1000) { |
| dev_warn(emu->card->dev, |
| "emu10k1:I2C:timeout status=0x%x\n", |
| status); |
| break; |
| } |
| } |
| //Read back and see if the transaction is successful |
| if ((status & I2C_A_ADC_ABORT) == 0) |
| break; |
| } |
| |
| if (retry == 10) { |
| dev_err(emu->card->dev, "Writing to ADC failed!\n"); |
| dev_err(emu->card->dev, "status=0x%x, reg=%d, value=%d\n", |
| status, reg, value); |
| /* dump_stack(); */ |
| err = -EINVAL; |
| } |
| |
| spin_unlock(&emu->i2c_lock); |
| return err; |
| } |
| |
| int snd_emu1010_fpga_write(struct snd_emu10k1 * emu, u32 reg, u32 value) |
| { |
| unsigned long flags; |
| |
| if (reg > 0x3f) |
| return 1; |
| reg += 0x40; /* 0x40 upwards are registers. */ |
| if (value > 0x3f) /* 0 to 0x3f are values */ |
| return 1; |
| spin_lock_irqsave(&emu->emu_lock, flags); |
| outl(reg, emu->port + A_IOCFG); |
| udelay(10); |
| outl(reg | 0x80, emu->port + A_IOCFG); /* High bit clocks the value into the fpga. */ |
| udelay(10); |
| outl(value, emu->port + A_IOCFG); |
| udelay(10); |
| outl(value | 0x80 , emu->port + A_IOCFG); /* High bit clocks the value into the fpga. */ |
| spin_unlock_irqrestore(&emu->emu_lock, flags); |
| |
| return 0; |
| } |
| |
| int snd_emu1010_fpga_read(struct snd_emu10k1 * emu, u32 reg, u32 *value) |
| { |
| unsigned long flags; |
| if (reg > 0x3f) |
| return 1; |
| reg += 0x40; /* 0x40 upwards are registers. */ |
| spin_lock_irqsave(&emu->emu_lock, flags); |
| outl(reg, emu->port + A_IOCFG); |
| udelay(10); |
| outl(reg | 0x80, emu->port + A_IOCFG); /* High bit clocks the value into the fpga. */ |
| udelay(10); |
| *value = ((inl(emu->port + A_IOCFG) >> 8) & 0x7f); |
| spin_unlock_irqrestore(&emu->emu_lock, flags); |
| |
| return 0; |
| } |
| |
| /* Each Destination has one and only one Source, |
| * but one Source can feed any number of Destinations simultaneously. |
| */ |
| int snd_emu1010_fpga_link_dst_src_write(struct snd_emu10k1 * emu, u32 dst, u32 src) |
| { |
| snd_emu1010_fpga_write(emu, 0x00, ((dst >> 8) & 0x3f) ); |
| snd_emu1010_fpga_write(emu, 0x01, (dst & 0x3f) ); |
| snd_emu1010_fpga_write(emu, 0x02, ((src >> 8) & 0x3f) ); |
| snd_emu1010_fpga_write(emu, 0x03, (src & 0x3f) ); |
| |
| return 0; |
| } |
| |
| void snd_emu10k1_intr_enable(struct snd_emu10k1 *emu, unsigned int intrenb) |
| { |
| unsigned long flags; |
| unsigned int enable; |
| |
| spin_lock_irqsave(&emu->emu_lock, flags); |
| enable = inl(emu->port + INTE) | intrenb; |
| outl(enable, emu->port + INTE); |
| spin_unlock_irqrestore(&emu->emu_lock, flags); |
| } |
| |
| void snd_emu10k1_intr_disable(struct snd_emu10k1 *emu, unsigned int intrenb) |
| { |
| unsigned long flags; |
| unsigned int enable; |
| |
| spin_lock_irqsave(&emu->emu_lock, flags); |
| enable = inl(emu->port + INTE) & ~intrenb; |
| outl(enable, emu->port + INTE); |
| spin_unlock_irqrestore(&emu->emu_lock, flags); |
| } |
| |
| void snd_emu10k1_voice_intr_enable(struct snd_emu10k1 *emu, unsigned int voicenum) |
| { |
| unsigned long flags; |
| unsigned int val; |
| |
| spin_lock_irqsave(&emu->emu_lock, flags); |
| /* voice interrupt */ |
| if (voicenum >= 32) { |
| outl(CLIEH << 16, emu->port + PTR); |
| val = inl(emu->port + DATA); |
| val |= 1 << (voicenum - 32); |
| } else { |
| outl(CLIEL << 16, emu->port + PTR); |
| val = inl(emu->port + DATA); |
| val |= 1 << voicenum; |
| } |
| outl(val, emu->port + DATA); |
| spin_unlock_irqrestore(&emu->emu_lock, flags); |
| } |
| |
| void snd_emu10k1_voice_intr_disable(struct snd_emu10k1 *emu, unsigned int voicenum) |
| { |
| unsigned long flags; |
| unsigned int val; |
| |
| spin_lock_irqsave(&emu->emu_lock, flags); |
| /* voice interrupt */ |
| if (voicenum >= 32) { |
| outl(CLIEH << 16, emu->port + PTR); |
| val = inl(emu->port + DATA); |
| val &= ~(1 << (voicenum - 32)); |
| } else { |
| outl(CLIEL << 16, emu->port + PTR); |
| val = inl(emu->port + DATA); |
| val &= ~(1 << voicenum); |
| } |
| outl(val, emu->port + DATA); |
| spin_unlock_irqrestore(&emu->emu_lock, flags); |
| } |
| |
| void snd_emu10k1_voice_intr_ack(struct snd_emu10k1 *emu, unsigned int voicenum) |
| { |
| unsigned long flags; |
| |
| spin_lock_irqsave(&emu->emu_lock, flags); |
| /* voice interrupt */ |
| if (voicenum >= 32) { |
| outl(CLIPH << 16, emu->port + PTR); |
| voicenum = 1 << (voicenum - 32); |
| } else { |
| outl(CLIPL << 16, emu->port + PTR); |
| voicenum = 1 << voicenum; |
| } |
| outl(voicenum, emu->port + DATA); |
| spin_unlock_irqrestore(&emu->emu_lock, flags); |
| } |
| |
| void snd_emu10k1_voice_half_loop_intr_enable(struct snd_emu10k1 *emu, unsigned int voicenum) |
| { |
| unsigned long flags; |
| unsigned int val; |
| |
| spin_lock_irqsave(&emu->emu_lock, flags); |
| /* voice interrupt */ |
| if (voicenum >= 32) { |
| outl(HLIEH << 16, emu->port + PTR); |
| val = inl(emu->port + DATA); |
| val |= 1 << (voicenum - 32); |
| } else { |
| outl(HLIEL << 16, emu->port + PTR); |
| val = inl(emu->port + DATA); |
| val |= 1 << voicenum; |
| } |
| outl(val, emu->port + DATA); |
| spin_unlock_irqrestore(&emu->emu_lock, flags); |
| } |
| |
| void snd_emu10k1_voice_half_loop_intr_disable(struct snd_emu10k1 *emu, unsigned int voicenum) |
| { |
| unsigned long flags; |
| unsigned int val; |
| |
| spin_lock_irqsave(&emu->emu_lock, flags); |
| /* voice interrupt */ |
| if (voicenum >= 32) { |
| outl(HLIEH << 16, emu->port + PTR); |
| val = inl(emu->port + DATA); |
| val &= ~(1 << (voicenum - 32)); |
| } else { |
| outl(HLIEL << 16, emu->port + PTR); |
| val = inl(emu->port + DATA); |
| val &= ~(1 << voicenum); |
| } |
| outl(val, emu->port + DATA); |
| spin_unlock_irqrestore(&emu->emu_lock, flags); |
| } |
| |
| void snd_emu10k1_voice_half_loop_intr_ack(struct snd_emu10k1 *emu, unsigned int voicenum) |
| { |
| unsigned long flags; |
| |
| spin_lock_irqsave(&emu->emu_lock, flags); |
| /* voice interrupt */ |
| if (voicenum >= 32) { |
| outl(HLIPH << 16, emu->port + PTR); |
| voicenum = 1 << (voicenum - 32); |
| } else { |
| outl(HLIPL << 16, emu->port + PTR); |
| voicenum = 1 << voicenum; |
| } |
| outl(voicenum, emu->port + DATA); |
| spin_unlock_irqrestore(&emu->emu_lock, flags); |
| } |
| |
| void snd_emu10k1_voice_set_loop_stop(struct snd_emu10k1 *emu, unsigned int voicenum) |
| { |
| unsigned long flags; |
| unsigned int sol; |
| |
| spin_lock_irqsave(&emu->emu_lock, flags); |
| /* voice interrupt */ |
| if (voicenum >= 32) { |
| outl(SOLEH << 16, emu->port + PTR); |
| sol = inl(emu->port + DATA); |
| sol |= 1 << (voicenum - 32); |
| } else { |
| outl(SOLEL << 16, emu->port + PTR); |
| sol = inl(emu->port + DATA); |
| sol |= 1 << voicenum; |
| } |
| outl(sol, emu->port + DATA); |
| spin_unlock_irqrestore(&emu->emu_lock, flags); |
| } |
| |
| void snd_emu10k1_voice_clear_loop_stop(struct snd_emu10k1 *emu, unsigned int voicenum) |
| { |
| unsigned long flags; |
| unsigned int sol; |
| |
| spin_lock_irqsave(&emu->emu_lock, flags); |
| /* voice interrupt */ |
| if (voicenum >= 32) { |
| outl(SOLEH << 16, emu->port + PTR); |
| sol = inl(emu->port + DATA); |
| sol &= ~(1 << (voicenum - 32)); |
| } else { |
| outl(SOLEL << 16, emu->port + PTR); |
| sol = inl(emu->port + DATA); |
| sol &= ~(1 << voicenum); |
| } |
| outl(sol, emu->port + DATA); |
| spin_unlock_irqrestore(&emu->emu_lock, flags); |
| } |
| |
| void snd_emu10k1_wait(struct snd_emu10k1 *emu, unsigned int wait) |
| { |
| volatile unsigned count; |
| unsigned int newtime = 0, curtime; |
| |
| curtime = inl(emu->port + WC) >> 6; |
| while (wait-- > 0) { |
| count = 0; |
| while (count++ < 16384) { |
| newtime = inl(emu->port + WC) >> 6; |
| if (newtime != curtime) |
| break; |
| } |
| if (count > 16384) |
| break; |
| curtime = newtime; |
| } |
| } |
| |
| unsigned short snd_emu10k1_ac97_read(struct snd_ac97 *ac97, unsigned short reg) |
| { |
| struct snd_emu10k1 *emu = ac97->private_data; |
| unsigned long flags; |
| unsigned short val; |
| |
| spin_lock_irqsave(&emu->emu_lock, flags); |
| outb(reg, emu->port + AC97ADDRESS); |
| val = inw(emu->port + AC97DATA); |
| spin_unlock_irqrestore(&emu->emu_lock, flags); |
| return val; |
| } |
| |
| void snd_emu10k1_ac97_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short data) |
| { |
| struct snd_emu10k1 *emu = ac97->private_data; |
| unsigned long flags; |
| |
| spin_lock_irqsave(&emu->emu_lock, flags); |
| outb(reg, emu->port + AC97ADDRESS); |
| outw(data, emu->port + AC97DATA); |
| spin_unlock_irqrestore(&emu->emu_lock, flags); |
| } |
| |
| /* |
| * convert rate to pitch |
| */ |
| |
| unsigned int snd_emu10k1_rate_to_pitch(unsigned int rate) |
| { |
| static u32 logMagTable[128] = { |
| 0x00000, 0x02dfc, 0x05b9e, 0x088e6, 0x0b5d6, 0x0e26f, 0x10eb3, 0x13aa2, |
| 0x1663f, 0x1918a, 0x1bc84, 0x1e72e, 0x2118b, 0x23b9a, 0x2655d, 0x28ed5, |
| 0x2b803, 0x2e0e8, 0x30985, 0x331db, 0x359eb, 0x381b6, 0x3a93d, 0x3d081, |
| 0x3f782, 0x41e42, 0x444c1, 0x46b01, 0x49101, 0x4b6c4, 0x4dc49, 0x50191, |
| 0x5269e, 0x54b6f, 0x57006, 0x59463, 0x5b888, 0x5dc74, 0x60029, 0x623a7, |
| 0x646ee, 0x66a00, 0x68cdd, 0x6af86, 0x6d1fa, 0x6f43c, 0x7164b, 0x73829, |
| 0x759d4, 0x77b4f, 0x79c9a, 0x7bdb5, 0x7dea1, 0x7ff5e, 0x81fed, 0x8404e, |
| 0x86082, 0x88089, 0x8a064, 0x8c014, 0x8df98, 0x8fef1, 0x91e20, 0x93d26, |
| 0x95c01, 0x97ab4, 0x9993e, 0x9b79f, 0x9d5d9, 0x9f3ec, 0xa11d8, 0xa2f9d, |
| 0xa4d3c, 0xa6ab5, 0xa8808, 0xaa537, 0xac241, 0xadf26, 0xafbe7, 0xb1885, |
| 0xb3500, 0xb5157, 0xb6d8c, 0xb899f, 0xba58f, 0xbc15e, 0xbdd0c, 0xbf899, |
| 0xc1404, 0xc2f50, 0xc4a7b, 0xc6587, 0xc8073, 0xc9b3f, 0xcb5ed, 0xcd07c, |
| 0xceaec, 0xd053f, 0xd1f73, 0xd398a, 0xd5384, 0xd6d60, 0xd8720, 0xda0c3, |
| 0xdba4a, 0xdd3b4, 0xded03, 0xe0636, 0xe1f4e, 0xe384a, 0xe512c, 0xe69f3, |
| 0xe829f, 0xe9b31, 0xeb3a9, 0xecc08, 0xee44c, 0xefc78, 0xf148a, 0xf2c83, |
| 0xf4463, 0xf5c2a, 0xf73da, 0xf8b71, 0xfa2f0, 0xfba57, 0xfd1a7, 0xfe8df |
| }; |
| static char logSlopeTable[128] = { |
| 0x5c, 0x5c, 0x5b, 0x5a, 0x5a, 0x59, 0x58, 0x58, |
| 0x57, 0x56, 0x56, 0x55, 0x55, 0x54, 0x53, 0x53, |
| 0x52, 0x52, 0x51, 0x51, 0x50, 0x50, 0x4f, 0x4f, |
| 0x4e, 0x4d, 0x4d, 0x4d, 0x4c, 0x4c, 0x4b, 0x4b, |
| 0x4a, 0x4a, 0x49, 0x49, 0x48, 0x48, 0x47, 0x47, |
| 0x47, 0x46, 0x46, 0x45, 0x45, 0x45, 0x44, 0x44, |
| 0x43, 0x43, 0x43, 0x42, 0x42, 0x42, 0x41, 0x41, |
| 0x41, 0x40, 0x40, 0x40, 0x3f, 0x3f, 0x3f, 0x3e, |
| 0x3e, 0x3e, 0x3d, 0x3d, 0x3d, 0x3c, 0x3c, 0x3c, |
| 0x3b, 0x3b, 0x3b, 0x3b, 0x3a, 0x3a, 0x3a, 0x39, |
| 0x39, 0x39, 0x39, 0x38, 0x38, 0x38, 0x38, 0x37, |
| 0x37, 0x37, 0x37, 0x36, 0x36, 0x36, 0x36, 0x35, |
| 0x35, 0x35, 0x35, 0x34, 0x34, 0x34, 0x34, 0x34, |
| 0x33, 0x33, 0x33, 0x33, 0x32, 0x32, 0x32, 0x32, |
| 0x32, 0x31, 0x31, 0x31, 0x31, 0x31, 0x30, 0x30, |
| 0x30, 0x30, 0x30, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f |
| }; |
| int i; |
| |
| if (rate == 0) |
| return 0; /* Bail out if no leading "1" */ |
| rate *= 11185; /* Scale 48000 to 0x20002380 */ |
| for (i = 31; i > 0; i--) { |
| if (rate & 0x80000000) { /* Detect leading "1" */ |
| return (((unsigned int) (i - 15) << 20) + |
| logMagTable[0x7f & (rate >> 24)] + |
| (0x7f & (rate >> 17)) * |
| logSlopeTable[0x7f & (rate >> 24)]); |
| } |
| rate <<= 1; |
| } |
| |
| return 0; /* Should never reach this point */ |
| } |
| |
