/* * Copyright (c) by Jaroslav Kysela * Routines for control of CS4231(A)/CS4232/InterWave & compatible chips * * Bugs: * - sometimes record brokes playback with WSS portion of * Yamaha OPL3-SA3 chip * - CS4231 (GUS MAX) - still trouble with occasional noises * - broken initialization? * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * 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 * */ #include #include #include #include #include #include #include #include #include #include #include #include #include MODULE_AUTHOR("Jaroslav Kysela "); MODULE_DESCRIPTION("Routines for control of CS4231(A)/CS4232/InterWave & compatible chips"); MODULE_LICENSE("GPL"); #if 0 #define SNDRV_DEBUG_MCE #endif /* * Some variables */ static unsigned char freq_bits[14] = { /* 5510 */ 0x00 | CS4231_XTAL2, /* 6620 */ 0x0E | CS4231_XTAL2, /* 8000 */ 0x00 | CS4231_XTAL1, /* 9600 */ 0x0E | CS4231_XTAL1, /* 11025 */ 0x02 | CS4231_XTAL2, /* 16000 */ 0x02 | CS4231_XTAL1, /* 18900 */ 0x04 | CS4231_XTAL2, /* 22050 */ 0x06 | CS4231_XTAL2, /* 27042 */ 0x04 | CS4231_XTAL1, /* 32000 */ 0x06 | CS4231_XTAL1, /* 33075 */ 0x0C | CS4231_XTAL2, /* 37800 */ 0x08 | CS4231_XTAL2, /* 44100 */ 0x0A | CS4231_XTAL2, /* 48000 */ 0x0C | CS4231_XTAL1 }; static unsigned int rates[14] = { 5510, 6620, 8000, 9600, 11025, 16000, 18900, 22050, 27042, 32000, 33075, 37800, 44100, 48000 }; static struct snd_pcm_hw_constraint_list hw_constraints_rates = { .count = 14, .list = rates, .mask = 0, }; static int snd_cs4231_xrate(struct snd_pcm_runtime *runtime) { return snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &hw_constraints_rates); } static unsigned char snd_cs4231_original_image[32] = { 0x00, /* 00/00 - lic */ 0x00, /* 01/01 - ric */ 0x9f, /* 02/02 - la1ic */ 0x9f, /* 03/03 - ra1ic */ 0x9f, /* 04/04 - la2ic */ 0x9f, /* 05/05 - ra2ic */ 0xbf, /* 06/06 - loc */ 0xbf, /* 07/07 - roc */ 0x20, /* 08/08 - pdfr */ CS4231_AUTOCALIB, /* 09/09 - ic */ 0x00, /* 0a/10 - pc */ 0x00, /* 0b/11 - ti */ CS4231_MODE2, /* 0c/12 - mi */ 0xfc, /* 0d/13 - lbc */ 0x00, /* 0e/14 - pbru */ 0x00, /* 0f/15 - pbrl */ 0x80, /* 10/16 - afei */ 0x01, /* 11/17 - afeii */ 0x9f, /* 12/18 - llic */ 0x9f, /* 13/19 - rlic */ 0x00, /* 14/20 - tlb */ 0x00, /* 15/21 - thb */ 0x00, /* 16/22 - la3mic/reserved */ 0x00, /* 17/23 - ra3mic/reserved */ 0x00, /* 18/24 - afs */ 0x00, /* 19/25 - lamoc/version */ 0xcf, /* 1a/26 - mioc */ 0x00, /* 1b/27 - ramoc/reserved */ 0x20, /* 1c/28 - cdfr */ 0x00, /* 1d/29 - res4 */ 0x00, /* 1e/30 - cbru */ 0x00, /* 1f/31 - cbrl */ }; /* * Basic I/O functions */ static inline void cs4231_outb(struct snd_cs4231 *chip, u8 offset, u8 val) { outb(val, chip->port + offset); } static inline u8 cs4231_inb(struct snd_cs4231 *chip, u8 offset) { return inb(chip->port + offset); } static void snd_cs4231_outm(struct snd_cs4231 *chip, unsigned char reg, unsigned char mask, unsigned char value) { int timeout; unsigned char tmp; for (timeout = 250; timeout > 0 && (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT); timeout--) udelay(100); #ifdef CONFIG_SND_DEBUG if (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT) snd_printk("outm: auto calibration time out - reg = 0x%x, value = 0x%x\n", reg, value); #endif if (chip->calibrate_mute) { chip->image[reg] &= mask; chip->image[reg] |= value; } else { cs4231_outb(chip, CS4231P(REGSEL), chip->mce_bit | reg); mb(); tmp = (chip->image[reg] & mask) | value; cs4231_outb(chip, CS4231P(REG), tmp); chip->image[reg] = tmp; mb(); } } static void snd_cs4231_dout(struct snd_cs4231 *chip, unsigned char reg, unsigned char value) { int timeout; for (timeout = 250; timeout > 0 && (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT); timeout--) udelay(10); cs4231_outb(chip, CS4231P(REGSEL), chip->mce_bit | reg); cs4231_outb(chip, CS4231P(REG), value); mb(); } void snd_cs4231_out(struct snd_cs4231 *chip, unsigned char reg, unsigned char value) { int timeout; for (timeout = 250; timeout > 0 && (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT); timeout--) udelay(100); #ifdef CONFIG_SND_DEBUG if (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT) snd_printk("out: auto calibration time out - reg = 0x%x, value = 0x%x\n", reg, value); #endif cs4231_outb(chip, CS4231P(REGSEL), chip->mce_bit | reg); cs4231_outb(chip, CS4231P(REG), value); chip->image[reg] = value; mb(); #if 0 printk("codec out - reg 0x%x = 0x%x\n", chip->mce_bit | reg, value); #endif } unsigned char snd_cs4231_in(struct snd_cs4231 *chip, unsigned char reg) { int timeout; for (timeout = 250; timeout > 0 && (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT); timeout--) udelay(100); #ifdef CONFIG_SND_DEBUG if (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT) snd_printk("in: auto calibration time out - reg = 0x%x\n", reg); #endif cs4231_outb(chip, CS4231P(REGSEL), chip->mce_bit | reg); mb(); return cs4231_inb(chip, CS4231P(REG)); } void snd_cs4236_ext_out(struct snd_cs4231 *chip, unsigned char reg, unsigned char val) { cs4231_outb(chip, CS4231P(REGSEL), chip->mce_bit | 0x17); cs4231_outb(chip, CS4231P(REG), reg | (chip->image[CS4236_EXT_REG] & 0x01)); cs4231_outb(chip, CS4231P(REG), val); chip->eimage[CS4236_REG(reg)] = val; #if 0 printk("ext out : reg = 0x%x, val = 0x%x\n", reg, val); #endif } unsigned char snd_cs4236_ext_in(struct snd_cs4231 *chip, unsigned char reg) { cs4231_outb(chip, CS4231P(REGSEL), chip->mce_bit | 0x17); cs4231_outb(chip, CS4231P(REG), reg | (chip->image[CS4236_EXT_REG] & 0x01)); #if 1 return cs4231_inb(chip, CS4231P(REG)); #else { unsigned char res; res = cs4231_inb(chip, CS4231P(REG)); printk("ext in : reg = 0x%x, val = 0x%x\n", reg, res); return res; } #endif } #if 0 static void snd_cs4231_debug(struct snd_cs4231 *chip) { printk("CS4231 REGS: INDEX = 0x%02x ", cs4231_inb(chip, CS4231P(REGSEL))); printk(" STATUS = 0x%02x\n", cs4231_inb(chip, CS4231P(STATUS))); printk(" 0x00: left input = 0x%02x ", snd_cs4231_in(chip, 0x00)); printk(" 0x10: alt 1 (CFIG 2) = 0x%02x\n", snd_cs4231_in(chip, 0x10)); printk(" 0x01: right input = 0x%02x ", snd_cs4231_in(chip, 0x01)); printk(" 0x11: alt 2 (CFIG 3) = 0x%02x\n", snd_cs4231_in(chip, 0x11)); printk(" 0x02: GF1 left input = 0x%02x ", snd_cs4231_in(chip, 0x02)); printk(" 0x12: left line in = 0x%02x\n", snd_cs4231_in(chip, 0x12)); printk(" 0x03: GF1 right input = 0x%02x ", snd_cs4231_in(chip, 0x03)); printk(" 0x13: right line in = 0x%02x\n", snd_cs4231_in(chip, 0x13)); printk(" 0x04: CD left input = 0x%02x ", snd_cs4231_in(chip, 0x04)); printk(" 0x14: timer low = 0x%02x\n", snd_cs4231_in(chip, 0x14)); printk(" 0x05: CD right input = 0x%02x ", snd_cs4231_in(chip, 0x05)); printk(" 0x15: timer high = 0x%02x\n", snd_cs4231_in(chip, 0x15)); printk(" 0x06: left output = 0x%02x ", snd_cs4231_in(chip, 0x06)); printk(" 0x16: left MIC (PnP) = 0x%02x\n", snd_cs4231_in(chip, 0x16)); printk(" 0x07: right output = 0x%02x ", snd_cs4231_in(chip, 0x07)); printk(" 0x17: right MIC (PnP) = 0x%02x\n", snd_cs4231_in(chip, 0x17)); printk(" 0x08: playback format = 0x%02x ", snd_cs4231_in(chip, 0x08)); printk(" 0x18: IRQ status = 0x%02x\n", snd_cs4231_in(chip, 0x18)); printk(" 0x09: iface (CFIG 1) = 0x%02x ", snd_cs4231_in(chip, 0x09)); printk(" 0x19: left line out = 0x%02x\n", snd_cs4231_in(chip, 0x19)); printk(" 0x0a: pin control = 0x%02x ", snd_cs4231_in(chip, 0x0a)); printk(" 0x1a: mono control = 0x%02x\n", snd_cs4231_in(chip, 0x1a)); printk(" 0x0b: init & status = 0x%02x ", snd_cs4231_in(chip, 0x0b)); printk(" 0x1b: right line out = 0x%02x\n", snd_cs4231_in(chip, 0x1b)); printk(" 0x0c: revision & mode = 0x%02x ", snd_cs4231_in(chip, 0x0c)); printk(" 0x1c: record format = 0x%02x\n", snd_cs4231_in(chip, 0x1c)); printk(" 0x0d: loopback = 0x%02x ", snd_cs4231_in(chip, 0x0d)); printk(" 0x1d: var freq (PnP) = 0x%02x\n", snd_cs4231_in(chip, 0x1d)); printk(" 0x0e: ply upr count = 0x%02x ", snd_cs4231_in(chip, 0x0e)); printk(" 0x1e: ply lwr count = 0x%02x\n", snd_cs4231_in(chip, 0x1e)); printk(" 0x0f: rec upr count = 0x%02x ", snd_cs4231_in(chip, 0x0f)); printk(" 0x1f: rec lwr count = 0x%02x\n", snd_cs4231_in(chip, 0x1f)); } #endif /* * CS4231 detection / MCE routines */ static void snd_cs4231_busy_wait(struct snd_cs4231 *chip) { int timeout; /* huh.. looks like this sequence is proper for CS4231A chip (GUS MAX) */ for (timeout = 5; timeout > 0; timeout--) cs4231_inb(chip, CS4231P(REGSEL)); /* end of cleanup sequence */ for (timeout = 250; timeout > 0 && (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT); timeout--) udelay(10); } void snd_cs4231_mce_up(struct snd_cs4231 *chip) { unsigned long flags; int timeout; for (timeout = 250; timeout > 0 && (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT); timeout--) udelay(100); #ifdef CONFIG_SND_DEBUG if (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT) snd_printk("mce_up - auto calibration time out (0)\n"); #endif spin_lock_irqsave(&chip->reg_lock, flags); chip->mce_bit |= CS4231_MCE; timeout = cs4231_inb(chip, CS4231P(REGSEL)); if (timeout == 0x80) snd_printk("mce_up [0x%lx]: serious init problem - codec still busy\n", chip->port); if (!(timeout & CS4231_MCE)) cs4231_outb(chip, CS4231P(REGSEL), chip->mce_bit | (timeout & 0x1f)); spin_unlock_irqrestore(&chip->reg_lock, flags); } void snd_cs4231_mce_down(struct snd_cs4231 *chip) { unsigned long flags; int timeout; snd_cs4231_busy_wait(chip); #if 0 printk("(1) timeout = %i\n", timeout); #endif #ifdef CONFIG_SND_DEBUG if (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT) snd_printk("mce_down [0x%lx] - auto calibration time out (0)\n", (long)CS4231P(REGSEL)); #endif spin_lock_irqsave(&chip->reg_lock, flags); chip->mce_bit &= ~CS4231_MCE; timeout = cs4231_inb(chip, CS4231P(REGSEL)); cs4231_outb(chip, CS4231P(REGSEL), chip->mce_bit | (timeout & 0x1f)); spin_unlock_irqrestore(&chip->reg_lock, flags); if (timeout == 0x80) snd_printk("mce_down [0x%lx]: serious init problem - codec still busy\n", chip->port); if ((timeout & CS4231_MCE) == 0 || !(chip->hardware & (CS4231_HW_CS4231_MASK | CS4231_HW_CS4232_MASK))) { return; } snd_cs4231_busy_wait(chip); /* calibration process */ for (timeout = 500; timeout > 0 && (snd_cs4231_in(chip, CS4231_TEST_INIT) & CS4231_CALIB_IN_PROGRESS) == 0; timeout--) udelay(10); if ((snd_cs4231_in(chip, CS4231_TEST_INIT) & CS4231_CALIB_IN_PROGRESS) == 0) { snd_printd("cs4231_mce_down - auto calibration time out (1)\n"); return; } #if 0 printk("(2) timeout = %i, jiffies = %li\n", timeout, jiffies); #endif /* in 10 ms increments, check condition, up to 250 ms */ timeout = 25; while (snd_cs4231_in(chip, CS4231_TEST_INIT) & CS4231_CALIB_IN_PROGRESS) { if (--timeout < 0) { snd_printk("mce_down - auto calibration time out (2)\n"); return; } msleep(10); } #if 0 printk("(3) jiffies = %li\n", jiffies); #endif /* in 10 ms increments, check condition, up to 100 ms */ timeout = 10; while (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT) { if (--timeout < 0) { snd_printk(KERN_ERR "mce_down - auto calibration time out (3)\n"); return; } msleep(10); } #if 0 printk("(4) jiffies = %li\n", jiffies); snd_printk("mce_down - exit = 0x%x\n", cs4231_inb(chip, CS4231P(REGSEL))); #endif } static unsigned int snd_cs4231_get_count(unsigned char format, unsigned int size) { switch (format & 0xe0) { case CS4231_LINEAR_16: case CS4231_LINEAR_16_BIG: size >>= 1; break; case CS4231_ADPCM_16: return size >> 2; } if (format & CS4231_STEREO) size >>= 1; return size; } static int snd_cs4231_trigger(struct snd_pcm_substream *substream, int cmd) { struct snd_cs4231 *chip = snd_pcm_substream_chip(substream); int result = 0; unsigned int what; struct list_head *pos; struct snd_pcm_substream *s; int do_start; #if 0 printk("codec trigger!!! - what = %i, enable = %i, status = 0x%x\n", what, enable, cs4231_inb(chip, CS4231P(STATUS))); #endif switch (cmd) { case SNDRV_PCM_TRIGGER_START: case SNDRV_PCM_TRIGGER_RESUME: do_start = 1; break; case SNDRV_PCM_TRIGGER_STOP: case SNDRV_PCM_TRIGGER_SUSPEND: do_start = 0; break; default: return -EINVAL; } what = 0; snd_pcm_group_for_each(pos, substream) { s = snd_pcm_group_substream_entry(pos); if (s == chip->playback_substream) { what |= CS4231_PLAYBACK_ENABLE; snd_pcm_trigger_done(s, substream); } else if (s == chip->capture_substream) { what |= CS4231_RECORD_ENABLE; snd_pcm_trigger_done(s, substream); } } spin_lock(&chip->reg_lock); if (do_start) { chip->image[CS4231_IFACE_CTRL] |= what; if (chip->trigger) chip->trigger(chip, what, 1); } else { chip->image[CS4231_IFACE_CTRL] &= ~what; if (chip->trigger) chip->trigger(chip, what, 0); } snd_cs4231_out(chip, CS4231_IFACE_CTRL, chip->image[CS4231_IFACE_CTRL]); spin_unlock(&chip->reg_lock); #if 0 snd_cs4231_debug(chip); #endif return result; } /* * CODEC I/O */ static unsigned char snd_cs4231_get_rate(unsigned int rate) { int i; for (i = 0; i < 14; i++) if (rate == rates[i]) return freq_bits[i]; // snd_BUG(); return freq_bits[13]; } static unsigned char snd_cs4231_get_format(struct snd_cs4231 *chip, int format, int channels) { unsigned char rformat; rformat = CS4231_LINEAR_8; switch (format) { case SNDRV_PCM_FORMAT_MU_LAW: rformat = CS4231_ULAW_8; break; case SNDRV_PCM_FORMAT_A_LAW: rformat = CS4231_ALAW_8; break; case SNDRV_PCM_FORMAT_S16_LE: rformat = CS4231_LINEAR_16; break; case SNDRV_PCM_FORMAT_S16_BE: rformat = CS4231_LINEAR_16_BIG; break; case SNDRV_PCM_FORMAT_IMA_ADPCM: rformat = CS4231_ADPCM_16; break; } if (channels > 1) rformat |= CS4231_STEREO; #if 0 snd_printk("get_format: 0x%x (mode=0x%x)\n", format, mode); #endif return rformat; } static void snd_cs4231_calibrate_mute(struct snd_cs4231 *chip, int mute) { unsigned long flags; mute = mute ? 1 : 0; spin_lock_irqsave(&chip->reg_lock, flags); if (chip->calibrate_mute == mute) { spin_unlock_irqrestore(&chip->reg_lock, flags); return; } if (!mute) { snd_cs4231_dout(chip, CS4231_LEFT_INPUT, chip->image[CS4231_LEFT_INPUT]); snd_cs4231_dout(chip, CS4231_RIGHT_INPUT, chip->image[CS4231_RIGHT_INPUT]); snd_cs4231_dout(chip, CS4231_LOOPBACK, chip->image[CS4231_LOOPBACK]); } snd_cs4231_dout(chip, CS4231_AUX1_LEFT_INPUT, mute ? 0x80 : chip->image[CS4231_AUX1_LEFT_INPUT]); snd_cs4231_dout(chip, CS4231_AUX1_RIGHT_INPUT, mute ? 0x80 : chip->image[CS4231_AUX1_RIGHT_INPUT]); snd_cs4231_dout(chip, CS4231_AUX2_LEFT_INPUT, mute ? 0x80 : chip->image[CS4231_AUX2_LEFT_INPUT]); snd_cs4231_dout(chip, CS4231_AUX2_RIGHT_INPUT, mute ? 0x80 : chip->image[CS4231_AUX2_RIGHT_INPUT]); snd_cs4231_dout(chip, CS4231_LEFT_OUTPUT, mute ? 0x80 : chip->image[CS4231_LEFT_OUTPUT]); snd_cs4231_dout(chip, CS4231_RIGHT_OUTPUT, mute ? 0x80 : chip->image[CS4231_RIGHT_OUTPUT]); snd_cs4231_dout(chip, CS4231_LEFT_LINE_IN, mute ? 0x80 : chip->image[CS4231_LEFT_LINE_IN]); snd_cs4231_dout(chip, CS4231_RIGHT_LINE_IN, mute ? 0x80 : chip->image[CS4231_RIGHT_LINE_IN]); snd_cs4231_dout(chip, CS4231_MONO_CTRL, mute ? 0xc0 : chip->image[CS4231_MONO_CTRL]); if (chip->hardware == CS4231_HW_INTERWAVE) { snd_cs4231_dout(chip, CS4231_LEFT_MIC_INPUT, mute ? 0x80 : chip->image[CS4231_LEFT_MIC_INPUT]); snd_cs4231_dout(chip, CS4231_RIGHT_MIC_INPUT, mute ? 0x80 : chip->image[CS4231_RIGHT_MIC_INPUT]); snd_cs4231_dout(chip, CS4231_LINE_LEFT_OUTPUT, mute ? 0x80 : chip->image[CS4231_LINE_LEFT_OUTPUT]); snd_cs4231_dout(chip, CS4231_LINE_RIGHT_OUTPUT, mute ? 0x80 : chip->image[CS4231_LINE_RIGHT_OUTPUT]); } chip->calibrate_mute = mute; spin_unlock_irqrestore(&chip->reg_lock, flags); } static void snd_cs4231_playback_format(struct snd_cs4231 *chip, struct snd_pcm_hw_params *params, unsigned char pdfr) { unsigned long flags; int full_calib = 1; down(&chip->mce_mutex); snd_cs4231_calibrate_mute(chip, 1); if (chip->hardware == CS4231_HW_CS4231A || (chip->hardware & CS4231_HW_CS4232_MASK)) { spin_lock_irqsave(&chip->reg_lock, flags); if ((chip->image[CS4231_PLAYBK_FORMAT] & 0x0f) == (pdfr & 0x0f)) { /* rate is same? */ snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, chip->image[CS4231_ALT_FEATURE_1] | 0x10); snd_cs4231_out(chip, CS4231_PLAYBK_FORMAT, chip->image[CS4231_PLAYBK_FORMAT] = pdfr); snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, chip->image[CS4231_ALT_FEATURE_1] &= ~0x10); udelay(100); /* Fixes audible clicks at least on GUS MAX */ full_calib = 0; } spin_unlock_irqrestore(&chip->reg_lock, flags); } if (full_calib) { snd_cs4231_mce_up(chip); spin_lock_irqsave(&chip->reg_lock, flags); if (chip->hardware != CS4231_HW_INTERWAVE && !chip->single_dma) { snd_cs4231_out(chip, CS4231_PLAYBK_FORMAT, (chip->image[CS4231_IFACE_CTRL] & CS4231_RECORD_ENABLE) ? (pdfr & 0xf0) | (chip->image[CS4231_REC_FORMAT] & 0x0f) : pdfr); } else { snd_cs4231_out(chip, CS4231_PLAYBK_FORMAT, chip->image[CS4231_PLAYBK_FORMAT] = pdfr); } spin_unlock_irqrestore(&chip->reg_lock, flags); snd_cs4231_mce_down(chip); } snd_cs4231_calibrate_mute(chip, 0); up(&chip->mce_mutex); } static void snd_cs4231_capture_format(struct snd_cs4231 *chip, struct snd_pcm_hw_params *params, unsigned char cdfr) { unsigned long flags; int full_calib = 1; down(&chip->mce_mutex); snd_cs4231_calibrate_mute(chip, 1); if (chip->hardware == CS4231_HW_CS4231A || (chip->hardware & CS4231_HW_CS4232_MASK)) { spin_lock_irqsave(&chip->reg_lock, flags); if ((chip->image[CS4231_PLAYBK_FORMAT] & 0x0f) == (cdfr & 0x0f) || /* rate is same? */ (chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE)) { snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, chip->image[CS4231_ALT_FEATURE_1] | 0x20); snd_cs4231_out(chip, CS4231_REC_FORMAT, chip->image[CS4231_REC_FORMAT] = cdfr); snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, chip->image[CS4231_ALT_FEATURE_1] &= ~0x20); full_calib = 0; } spin_unlock_irqrestore(&chip->reg_lock, flags); } if (full_calib) { snd_cs4231_mce_up(chip); spin_lock_irqsave(&chip->reg_lock, flags); if (chip->hardware != CS4231_HW_INTERWAVE) { if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE)) { snd_cs4231_out(chip, CS4231_PLAYBK_FORMAT, ((chip->single_dma ? cdfr : chip->image[CS4231_PLAYBK_FORMAT]) & 0xf0) | (cdfr & 0x0f)); spin_unlock_irqrestore(&chip->reg_lock, flags); snd_cs4231_mce_down(chip); snd_cs4231_mce_up(chip); spin_lock_irqsave(&chip->reg_lock, flags); } } snd_cs4231_out(chip, CS4231_REC_FORMAT, cdfr); spin_unlock_irqrestore(&chip->reg_lock, flags); snd_cs4231_mce_down(chip); } snd_cs4231_calibrate_mute(chip, 0); up(&chip->mce_mutex); } /* * Timer interface */ static unsigned long snd_cs4231_timer_resolution(struct snd_timer * timer) { struct snd_cs4231 *chip = snd_timer_chip(timer); if (chip->hardware & CS4231_HW_CS4236B_MASK) return 14467; else return chip->image[CS4231_PLAYBK_FORMAT] & 1 ? 9969 : 9920; } static int snd_cs4231_timer_start(struct snd_timer * timer) { unsigned long flags; unsigned int ticks; struct snd_cs4231 *chip = snd_timer_chip(timer); spin_lock_irqsave(&chip->reg_lock, flags); ticks = timer->sticks; if ((chip->image[CS4231_ALT_FEATURE_1] & CS4231_TIMER_ENABLE) == 0 || (unsigned char)(ticks >> 8) != chip->image[CS4231_TIMER_HIGH] || (unsigned char)ticks != chip->image[CS4231_TIMER_LOW]) { snd_cs4231_out(chip, CS4231_TIMER_HIGH, chip->image[CS4231_TIMER_HIGH] = (unsigned char) (ticks >> 8)); snd_cs4231_out(chip, CS4231_TIMER_LOW, chip->image[CS4231_TIMER_LOW] = (unsigned char) ticks); snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, chip->image[CS4231_ALT_FEATURE_1] | CS4231_TIMER_ENABLE); } spin_unlock_irqrestore(&chip->reg_lock, flags); return 0; } static int snd_cs4231_timer_stop(struct snd_timer * timer) { unsigned long flags; struct snd_cs4231 *chip = snd_timer_chip(timer); spin_lock_irqsave(&chip->reg_lock, flags); snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, chip->image[CS4231_ALT_FEATURE_1] &= ~CS4231_TIMER_ENABLE); spin_unlock_irqrestore(&chip->reg_lock, flags); return 0; } static void snd_cs4231_init(struct snd_cs4231 *chip) { unsigned long flags; snd_cs4231_mce_down(chip); #ifdef SNDRV_DEBUG_MCE snd_printk("init: (1)\n"); #endif snd_cs4231_mce_up(chip); spin_lock_irqsave(&chip->reg_lock, flags); chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO | CS4231_RECORD_ENABLE | CS4231_RECORD_PIO | CS4231_CALIB_MODE); chip->image[CS4231_IFACE_CTRL] |= CS4231_AUTOCALIB; snd_cs4231_out(chip, CS4231_IFACE_CTRL, chip->image[CS4231_IFACE_CTRL]); spin_unlock_irqrestore(&chip->reg_lock, flags); snd_cs4231_mce_down(chip); #ifdef SNDRV_DEBUG_MCE snd_printk("init: (2)\n"); #endif snd_cs4231_mce_up(chip); spin_lock_irqsave(&chip->reg_lock, flags); snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, chip->image[CS4231_ALT_FEATURE_1]); spin_unlock_irqrestore(&chip->reg_lock, flags); snd_cs4231_mce_down(chip); #ifdef SNDRV_DEBUG_MCE snd_printk("init: (3) - afei = 0x%x\n", chip->image[CS4231_ALT_FEATURE_1]); #endif spin_lock_irqsave(&chip->reg_lock, flags); snd_cs4231_out(chip, CS4231_ALT_FEATURE_2, chip->image[CS4231_ALT_FEATURE_2]); spin_unlock_irqrestore(&chip->reg_lock, flags); snd_cs4231_mce_up(chip); spin_lock_irqsave(&chip->reg_lock, flags); snd_cs4231_out(chip, CS4231_PLAYBK_FORMAT, chip->image[CS4231_PLAYBK_FORMAT]); spin_unlock_irqrestore(&chip->reg_lock, flags); snd_cs4231_mce_down(chip); #ifdef SNDRV_DEBUG_MCE snd_printk("init: (4)\n"); #endif snd_cs4231_mce_up(chip); spin_lock_irqsave(&chip->reg_lock, flags); snd_cs4231_out(chip, CS4231_REC_FORMAT, chip->image[CS4231_REC_FORMAT]); spin_unlock_irqrestore(&chip->reg_lock, flags); snd_cs4231_mce_down(chip); #ifdef SNDRV_DEBUG_MCE snd_printk("init: (5)\n"); #endif } static int snd_cs4231_open(struct snd_cs4231 *chip, unsigned int mode) { unsigned long flags; down(&chip->open_mutex); if ((chip->mode & mode) || ((chip->mode & CS4231_MODE_OPEN) && chip->single_dma)) { up(&chip->open_mutex); return -EAGAIN; } if (chip->mode & CS4231_MODE_OPEN) { chip->mode |= mode; up(&chip->open_mutex); return 0; } /* ok. now enable and ack CODEC IRQ */ spin_lock_irqsave(&chip->reg_lock, flags); snd_cs4231_out(chip, CS4231_IRQ_STATUS, CS4231_PLAYBACK_IRQ | CS4231_RECORD_IRQ | CS4231_TIMER_IRQ); snd_cs4231_out(chip, CS4231_IRQ_STATUS, 0); cs4231_outb(chip, CS4231P(STATUS), 0); /* clear IRQ */ cs4231_outb(chip, CS4231P(STATUS), 0); /* clear IRQ */ chip->image[CS4231_PIN_CTRL] |= CS4231_IRQ_ENABLE; snd_cs4231_out(chip, CS4231_PIN_CTRL, chip->image[CS4231_PIN_CTRL]); snd_cs4231_out(chip, CS4231_IRQ_STATUS, CS4231_PLAYBACK_IRQ | CS4231_RECORD_IRQ | CS4231_TIMER_IRQ); snd_cs4231_out(chip, CS4231_IRQ_STATUS, 0); spin_unlock_irqrestore(&chip->reg_lock, flags); chip->mode = mode; up(&chip->open_mutex); return 0; } static void snd_cs4231_close(struct snd_cs4231 *chip, unsigned int mode) { unsigned long flags; down(&chip->open_mutex); chip->mode &= ~mode; if (chip->mode & CS4231_MODE_OPEN) { up(&chip->open_mutex); return; } snd_cs4231_calibrate_mute(chip, 1); /* disable IRQ */ spin_lock_irqsave(&chip->reg_lock, flags); snd_cs4231_out(chip, CS4231_IRQ_STATUS, 0); cs4231_outb(chip, CS4231P(STATUS), 0); /* clear IRQ */ cs4231_outb(chip, CS4231P(STATUS), 0); /* clear IRQ */ chip->image[CS4231_PIN_CTRL] &= ~CS4231_IRQ_ENABLE; snd_cs4231_out(chip, CS4231_PIN_CTRL, chip->image[CS4231_PIN_CTRL]); /* now disable record & playback */ if (chip->image[CS4231_IFACE_CTRL] & (CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO | CS4231_RECORD_ENABLE | CS4231_RECORD_PIO)) { spin_unlock_irqrestore(&chip->reg_lock, flags); snd_cs4231_mce_up(chip); spin_lock_irqsave(&chip->reg_lock, flags); chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO | CS4231_RECORD_ENABLE | CS4231_RECORD_PIO); snd_cs4231_out(chip, CS4231_IFACE_CTRL, chip->image[CS4231_IFACE_CTRL]); spin_unlock_irqrestore(&chip->reg_lock, flags); snd_cs4231_mce_down(chip); spin_lock_irqsave(&chip->reg_lock, flags); } /* clear IRQ again */ snd_cs4231_out(chip, CS4231_IRQ_STATUS, 0); cs4231_outb(chip, CS4231P(STATUS), 0); /* clear IRQ */ cs4231_outb(chip, CS4231P(STATUS), 0); /* clear IRQ */ spin_unlock_irqrestore(&chip->reg_lock, flags); snd_cs4231_calibrate_mute(chip, 0); chip->mode = 0; up(&chip->open_mutex); } /* * timer open/close */ static int snd_cs4231_timer_open(struct snd_timer * timer) { struct snd_cs4231 *chip = snd_timer_chip(timer); snd_cs4231_open(chip, CS4231_MODE_TIMER); return 0; } static int snd_cs4231_timer_close(struct snd_timer * timer) { struct snd_cs4231 *chip = snd_timer_chip(timer); snd_cs4231_close(chip, CS4231_MODE_TIMER); return 0; } static struct snd_timer_hardware snd_cs4231_timer_table = { .flags = SNDRV_TIMER_HW_AUTO, .resolution = 9945, .ticks = 65535, .open = snd_cs4231_timer_open, .close = snd_cs4231_timer_close, .c_resolution = snd_cs4231_timer_resolution, .start = snd_cs4231_timer_start, .stop = snd_cs4231_timer_stop, }; /* * ok.. exported functions.. */ static int snd_cs4231_playback_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *hw_params) { struct snd_cs4231 *chip = snd_pcm_substream_chip(substream); unsigned char new_pdfr; int err; if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0) return err; new_pdfr = snd_cs4231_get_format(chip, params_format(hw_params), params_channels(hw_params)) | snd_cs4231_get_rate(params_rate(hw_params)); chip->set_playback_format(chip, hw_params, new_pdfr); return 0; } static int snd_cs4231_playback_hw_free(struct snd_pcm_substream *substream) { return snd_pcm_lib_free_pages(substream); } static int snd_cs4231_playback_prepare(struct snd_pcm_substream *substream) { struct snd_cs4231 *chip = snd_pcm_substream_chip(substream); struct snd_pcm_runtime *runtime = substream->runtime; unsigned long flags; unsigned int size = snd_pcm_lib_buffer_bytes(substream); unsigned int count = snd_pcm_lib_period_bytes(substream); spin_lock_irqsave(&chip->reg_lock, flags); chip->p_dma_size = size; chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO); snd_dma_program(chip->dma1, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT); count = snd_cs4231_get_count(chip->image[CS4231_PLAYBK_FORMAT], count) - 1; snd_cs4231_out(chip, CS4231_PLY_LWR_CNT, (unsigned char) count); snd_cs4231_out(chip, CS4231_PLY_UPR_CNT, (unsigned char) (count >> 8)); spin_unlock_irqrestore(&chip->reg_lock, flags); #if 0 snd_cs4231_debug(chip); #endif return 0; } static int snd_cs4231_capture_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *hw_params) { struct snd_cs4231 *chip = snd_pcm_substream_chip(substream); unsigned char new_cdfr; int err; if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0) return err; new_cdfr = snd_cs4231_get_format(chip, params_format(hw_params), params_channels(hw_params)) | snd_cs4231_get_rate(params_rate(hw_params)); chip->set_capture_format(chip, hw_params, new_cdfr); return 0; } static int snd_cs4231_capture_hw_free(struct snd_pcm_substream *substream) { return snd_pcm_lib_free_pages(substream); } static int snd_cs4231_capture_prepare(struct snd_pcm_substream *substream) { struct snd_cs4231 *chip = snd_pcm_substream_chip(substream); struct snd_pcm_runtime *runtime = substream->runtime; unsigned long flags; unsigned int size = snd_pcm_lib_buffer_bytes(substream); unsigned int count = snd_pcm_lib_period_bytes(substream); spin_lock_irqsave(&chip->reg_lock, flags); chip->c_dma_size = size; chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_RECORD_ENABLE | CS4231_RECORD_PIO); snd_dma_program(chip->dma2, runtime->dma_addr, size, DMA_MODE_READ | DMA_AUTOINIT); count = snd_cs4231_get_count(chip->image[CS4231_REC_FORMAT], count) - 1; if (chip->single_dma && chip->hardware != CS4231_HW_INTERWAVE) { snd_cs4231_out(chip, CS4231_PLY_LWR_CNT, (unsigned char) count); snd_cs4231_out(chip, CS4231_PLY_UPR_CNT, (unsigned char) (count >> 8)); } else { snd_cs4231_out(chip, CS4231_REC_LWR_CNT, (unsigned char) count); snd_cs4231_out(chip, CS4231_REC_UPR_CNT, (unsigned char) (count >> 8)); } spin_unlock_irqrestore(&chip->reg_lock, flags); return 0; } static void snd_cs4231_overrange(struct snd_cs4231 *chip) { unsigned long flags; unsigned char res; spin_lock_irqsave(&chip->reg_lock, flags); res = snd_cs4231_in(chip, CS4231_TEST_INIT); spin_unlock_irqrestore(&chip->reg_lock, flags); if (res & (0x08 | 0x02)) /* detect overrange only above 0dB; may be user selectable? */ chip->capture_substream->runtime->overrange++; } irqreturn_t snd_cs4231_interrupt(int irq, void *dev_id, struct pt_regs *regs) { struct snd_cs4231 *chip = dev_id; unsigned char status; status = snd_cs4231_in(chip, CS4231_IRQ_STATUS); if (status & CS4231_TIMER_IRQ) { if (chip->timer) snd_timer_interrupt(chip->timer, chip->timer->sticks); } if (chip->single_dma && chip->hardware != CS4231_HW_INTERWAVE) { if (status & CS4231_PLAYBACK_IRQ) { if (chip->mode & CS4231_MODE_PLAY) { if (chip->playback_substream) snd_pcm_period_elapsed(chip->playback_substream); } if (chip->mode & CS4231_MODE_RECORD) { if (chip->capture_substream) { snd_cs4231_overrange(chip); snd_pcm_period_elapsed(chip->capture_substream); } } } } else { if (status & CS4231_PLAYBACK_IRQ) { if (chip->playback_substream) snd_pcm_period_elapsed(chip->playback_substream); } if (status & CS4231_RECORD_IRQ) { if (chip->capture_substream) { snd_cs4231_overrange(chip); snd_pcm_period_elapsed(chip->capture_substream); } } } spin_lock(&chip->reg_lock); snd_cs4231_outm(chip, CS4231_IRQ_STATUS, ~CS4231_ALL_IRQS | ~status, 0); spin_unlock(&chip->reg_lock); return IRQ_HANDLED; } static snd_pcm_uframes_t snd_cs4231_playback_pointer(struct snd_pcm_substream *substream) { struct snd_cs4231 *chip = snd_pcm_substream_chip(substream); size_t ptr; if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE)) return 0; ptr = snd_dma_pointer(chip->dma1, chip->p_dma_size); return bytes_to_frames(substream->runtime, ptr); } static snd_pcm_uframes_t snd_cs4231_capture_pointer(struct snd_pcm_substream *substream) { struct snd_cs4231 *chip = snd_pcm_substream_chip(substream); size_t ptr; if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_RECORD_ENABLE)) return 0; ptr = snd_dma_pointer(chip->dma2, chip->c_dma_size); return bytes_to_frames(substream->runtime, ptr); } /* */ static int snd_cs4231_probe(struct snd_cs4231 *chip) { unsigned long flags; int i, id, rev; unsigned char *ptr; unsigned int hw; #if 0 snd_cs4231_debug(chip); #endif id = 0; for (i = 0; i < 50; i++) { mb(); if (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT) udelay(2000); else { spin_lock_irqsave(&chip->reg_lock, flags); snd_cs4231_out(chip, CS4231_MISC_INFO, CS4231_MODE2); id = snd_cs4231_in(chip, CS4231_MISC_INFO) & 0x0f; spin_unlock_irqrestore(&chip->reg_lock, flags); if (id == 0x0a) break; /* this is valid value */ } } snd_printdd("cs4231: port = 0x%lx, id = 0x%x\n", chip->port, id); if (id != 0x0a) return -ENODEV; /* no valid device found */ if (((hw = chip->hardware) & CS4231_HW_TYPE_MASK) == CS4231_HW_DETECT) { rev = snd_cs4231_in(chip, CS4231_VERSION) & 0xe7; snd_printdd("CS4231: VERSION (I25) = 0x%x\n", rev); if (rev == 0x80) { unsigned char tmp = snd_cs4231_in(chip, 23); snd_cs4231_out(chip, 23, ~tmp); if (snd_cs4231_in(chip, 23) != tmp) chip->hardware = CS4231_HW_AD1845; else chip->hardware = CS4231_HW_CS4231; } else if (rev == 0xa0) { chip->hardware = CS4231_HW_CS4231A; } else if (rev == 0xa2) { chip->hardware = CS4231_HW_CS4232; } else if (rev == 0xb2) { chip->hardware = CS4231_HW_CS4232A; } else if (rev == 0x83) { chip->hardware = CS4231_HW_CS4236; } else if (rev == 0x03) { chip->hardware = CS4231_HW_CS4236B; } else { snd_printk("unknown CS chip with version 0x%x\n", rev); return -ENODEV; /* unknown CS4231 chip? */ } } spin_lock_irqsave(&chip->reg_lock, flags); cs4231_inb(chip, CS4231P(STATUS)); /* clear any pendings IRQ */ cs4231_outb(chip, CS4231P(STATUS), 0); mb(); spin_unlock_irqrestore(&chip->reg_lock, flags); chip->image[CS4231_MISC_INFO] = CS4231_MODE2; switch (chip->hardware) { case CS4231_HW_INTERWAVE: chip->image[CS4231_MISC_INFO] = CS4231_IW_MODE3; break; case CS4231_HW_CS4235: case CS4231_HW_CS4236B: case CS4231_HW_CS4237B: case CS4231_HW_CS4238B: case CS4231_HW_CS4239: if (hw == CS4231_HW_DETECT3) chip->image[CS4231_MISC_INFO] = CS4231_4236_MODE3; else chip->hardware = CS4231_HW_CS4236; break; } chip->image[CS4231_IFACE_CTRL] = (chip->image[CS4231_IFACE_CTRL] & ~CS4231_SINGLE_DMA) | (chip->single_dma ? CS4231_SINGLE_DMA : 0); chip->image[CS4231_ALT_FEATURE_1] = 0x80; chip->image[CS4231_ALT_FEATURE_2] = chip->hardware == CS4231_HW_INTERWAVE ? 0xc2 : 0x01; ptr = (unsigned char *) &chip->image; snd_cs4231_mce_down(chip); spin_lock_irqsave(&chip->reg_lock, flags); for (i = 0; i < 32; i++) /* ok.. fill all CS4231 registers */ snd_cs4231_out(chip, i, *ptr++); spin_unlock_irqrestore(&chip->reg_lock, flags); snd_cs4231_mce_up(chip); snd_cs4231_mce_down(chip); mdelay(2); /* ok.. try check hardware version for CS4236+ chips */ if ((hw & CS4231_HW_TYPE_MASK) == CS4231_HW_DETECT) { if (chip->hardware == CS4231_HW_CS4236B) { rev = snd_cs4236_ext_in(chip, CS4236_VERSION); snd_cs4236_ext_out(chip, CS4236_VERSION, 0xff); id = snd_cs4236_ext_in(chip, CS4236_VERSION); snd_cs4236_ext_out(chip, CS4236_VERSION, rev); snd_printdd("CS4231: ext version; rev = 0x%x, id = 0x%x\n", rev, id); if ((id & 0x1f) == 0x1d) { /* CS4235 */ chip->hardware = CS4231_HW_CS4235; switch (id >> 5) { case 4: case 5: case 6: break; default: snd_printk("unknown CS4235 chip (enhanced version = 0x%x)\n", id); } } else if ((id & 0x1f) == 0x0b) { /* CS4236/B */ switch (id >> 5) { case 4: case 5: case 6: case 7: chip->hardware = CS4231_HW_CS4236B; break; default: snd_printk("unknown CS4236 chip (enhanced version = 0x%x)\n", id); } } else if ((id & 0x1f) == 0x08) { /* CS4237B */ chip->hardware = CS4231_HW_CS4237B; switch (id >> 5) { case 4: case 5: case 6: case 7: break; default: snd_printk("unknown CS4237B chip (enhanced version = 0x%x)\n", id); } } else if ((id & 0x1f) == 0x09) { /* CS4238B */ chip->hardware = CS4231_HW_CS4238B; switch (id >> 5) { case 5: case 6: case 7: break; default: snd_printk("unknown CS4238B chip (enhanced version = 0x%x)\n", id); } } else if ((id & 0x1f) == 0x1e) { /* CS4239 */ chip->hardware = CS4231_HW_CS4239; switch (id >> 5) { case 4: case 5: case 6: break; default: snd_printk("unknown CS4239 chip (enhanced version = 0x%x)\n", id); } } else { snd_printk("unknown CS4236/CS423xB chip (enhanced version = 0x%x)\n", id); } } } return 0; /* all things are ok.. */ } /* */ static struct snd_pcm_hardware snd_cs4231_playback = { .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_RESUME | SNDRV_PCM_INFO_SYNC_START), .formats = (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW | SNDRV_PCM_FMTBIT_IMA_ADPCM | SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE), .rates = SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000, .rate_min = 5510, .rate_max = 48000, .channels_min = 1, .channels_max = 2, .buffer_bytes_max = (128*1024), .period_bytes_min = 64, .period_bytes_max = (128*1024), .periods_min = 1, .periods_max = 1024, .fifo_size = 0, }; static struct snd_pcm_hardware snd_cs4231_capture = { .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_RESUME | SNDRV_PCM_INFO_SYNC_START), .formats = (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW | SNDRV_PCM_FMTBIT_IMA_ADPCM | SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE), .rates = SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000, .rate_min = 5510, .rate_max = 48000, .channels_min = 1, .channels_max = 2, .buffer_bytes_max = (128*1024), .period_bytes_min = 64, .period_bytes_max = (128*1024), .periods_min = 1, .periods_max = 1024, .fifo_size = 0, }; /* */ static int snd_cs4231_playback_open(struct snd_pcm_substream *substream) { struct snd_cs4231 *chip = snd_pcm_substream_chip(substream); struct snd_pcm_runtime *runtime = substream->runtime; int err; runtime->hw = snd_cs4231_playback; /* hardware bug in InterWave chipset */ if (chip->hardware == CS4231_HW_INTERWAVE && chip->dma1 > 3) runtime->hw.formats &= ~SNDRV_PCM_FMTBIT_MU_LAW; /* hardware limitation of cheap chips */ if (chip->hardware == CS4231_HW_CS4235 || chip->hardware == CS4231_HW_CS4239) runtime->hw.formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE; snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.buffer_bytes_max); snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.period_bytes_max); if (chip->claim_dma) { if ((err = chip->claim_dma(chip, chip->dma_private_data, chip->dma1)) < 0) return err; } if ((err = snd_cs4231_open(chip, CS4231_MODE_PLAY)) < 0) { if (chip->release_dma) chip->release_dma(chip, chip->dma_private_data, chip->dma1); snd_free_pages(runtime->dma_area, runtime->dma_bytes); return err; } chip->playback_substream = substream; snd_pcm_set_sync(substream); chip->rate_constraint(runtime); return 0; } static int snd_cs4231_capture_open(struct snd_pcm_substream *substream) { struct snd_cs4231 *chip = snd_pcm_substream_chip(substream); struct snd_pcm_runtime *runtime = substream->runtime; int err; runtime->hw = snd_cs4231_capture; /* hardware limitation of cheap chips */ if (chip->hardware == CS4231_HW_CS4235 || chip->hardware == CS4231_HW_CS4239) runtime->hw.formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE; snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.buffer_bytes_max); snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.period_bytes_max); if (chip->claim_dma) { if ((err = chip->claim_dma(chip, chip->dma_private_data, chip->dma2)) < 0) return err; } if ((err = snd_cs4231_open(chip, CS4231_MODE_RECORD)) < 0) { if (chip->release_dma) chip->release_dma(chip, chip->dma_private_data, chip->dma2); snd_free_pages(runtime->dma_area, runtime->dma_bytes); return err; } chip->capture_substream = substream; snd_pcm_set_sync(substream); chip->rate_constraint(runtime); return 0; } static int snd_cs4231_playback_close(struct snd_pcm_substream *substream) { struct snd_cs4231 *chip = snd_pcm_substream_chip(substream); chip->playback_substream = NULL; snd_cs4231_close(chip, CS4231_MODE_PLAY); return 0; } static int snd_cs4231_capture_close(struct snd_pcm_substream *substream) { struct snd_cs4231 *chip = snd_pcm_substream_chip(substream); chip->capture_substream = NULL; snd_cs4231_close(chip, CS4231_MODE_RECORD); return 0; } #ifdef CONFIG_PM /* lowlevel suspend callback for CS4231 */ static void snd_cs4231_suspend(struct snd_cs4231 *chip) { int reg; unsigned long flags; if (chip->pcm) snd_pcm_suspend_all(chip->pcm); spin_lock_irqsave(&chip->reg_lock, flags); for (reg = 0; reg < 32; reg++) chip->image[reg] = snd_cs4231_in(chip, reg); spin_unlock_irqrestore(&chip->reg_lock, flags); } /* lowlevel resume callback for CS4231 */ static void snd_cs4231_resume(struct snd_cs4231 *chip) { int reg; unsigned long flags; int timeout; snd_cs4231_mce_up(chip); spin_lock_irqsave(&chip->reg_lock, flags); for (reg = 0; reg < 32; reg++) { switch (reg) { case CS4231_VERSION: break; default: snd_cs4231_out(chip, reg, chip->image[reg]); break; } } spin_unlock_irqrestore(&chip->reg_lock, flags); #if 0 snd_cs4231_mce_down(chip); #else /* The following is a workaround to avoid freeze after resume on TP600E. This is the first half of copy of snd_cs4231_mce_down(), but doesn't include rescheduling. -- iwai */ snd_cs4231_busy_wait(chip); spin_lock_irqsave(&chip->reg_lock, flags); chip->mce_bit &= ~CS4231_MCE; timeout = cs4231_inb(chip, CS4231P(REGSEL)); cs4231_outb(chip, CS4231P(REGSEL), chip->mce_bit | (timeout & 0x1f)); spin_unlock_irqrestore(&chip->reg_lock, flags); if (timeout == 0x80) snd_printk("down [0x%lx]: serious init problem - codec still busy\n", chip->port); if ((timeout & CS4231_MCE) == 0 || !(chip->hardware & (CS4231_HW_CS4231_MASK | CS4231_HW_CS4232_MASK))) { return; } snd_cs4231_busy_wait(chip); #endif } static int snd_cs4231_pm_suspend(struct snd_card *card, pm_message_t state) { struct snd_cs4231 *chip = card->pm_private_data; if (chip->suspend) chip->suspend(chip); return 0; } static int snd_cs4231_pm_resume(struct snd_card *card) { struct snd_cs4231 *chip = card->pm_private_data; if (chip->resume) chip->resume(chip); return 0; } #endif /* CONFIG_PM */ static int snd_cs4231_free(struct snd_cs4231 *chip) { release_and_free_resource(chip->res_port); release_and_free_resource(chip->res_cport); if (chip->irq >= 0) { disable_irq(chip->irq); if (!(chip->hwshare & CS4231_HWSHARE_IRQ)) free_irq(chip->irq, (void *) chip); } if (!(chip->hwshare & CS4231_HWSHARE_DMA1) && chip->dma1 >= 0) { snd_dma_disable(chip->dma1); free_dma(chip->dma1); } if (!(chip->hwshare & CS4231_HWSHARE_DMA2) && chip->dma2 >= 0 && chip->dma2 != chip->dma1) { snd_dma_disable(chip->dma2); free_dma(chip->dma2); } if (chip->timer) snd_device_free(chip->card, chip->timer); kfree(chip); return 0; } static int snd_cs4231_dev_free(struct snd_device *device) { struct snd_cs4231 *chip = device->device_data; return snd_cs4231_free(chip); } const char *snd_cs4231_chip_id(struct snd_cs4231 *chip) { switch (chip->hardware) { case CS4231_HW_CS4231: return "CS4231"; case CS4231_HW_CS4231A: return "CS4231A"; case CS4231_HW_CS4232: return "CS4232"; case CS4231_HW_CS4232A: return "CS4232A"; case CS4231_HW_CS4235: return "CS4235"; case CS4231_HW_CS4236: return "CS4236"; case CS4231_HW_CS4236B: return "CS4236B"; case CS4231_HW_CS4237B: return "CS4237B"; case CS4231_HW_CS4238B: return "CS4238B"; case CS4231_HW_CS4239: return "CS4239"; case CS4231_HW_INTERWAVE: return "AMD InterWave"; case CS4231_HW_OPL3SA2: return chip->card->shortname; case CS4231_HW_AD1845: return "AD1845"; default: return "???"; } } static int snd_cs4231_new(struct snd_card *card, unsigned short hardware, unsigned short hwshare, struct snd_cs4231 ** rchip) { struct snd_cs4231 *chip; *rchip = NULL; chip = kzalloc(sizeof(*chip), GFP_KERNEL); if (chip == NULL) return -ENOMEM; chip->hardware = hardware; chip->hwshare = hwshare; spin_lock_init(&chip->reg_lock); init_MUTEX(&chip->mce_mutex); init_MUTEX(&chip->open_mutex); chip->card = card; chip->rate_constraint = snd_cs4231_xrate; chip->set_playback_format = snd_cs4231_playback_format; chip->set_capture_format = snd_cs4231_capture_format; memcpy(&chip->image, &snd_cs4231_original_image, sizeof(snd_cs4231_original_image)); *rchip = chip; return 0; } int snd_cs4231_create(struct snd_card *card, unsigned long port, unsigned long cport, int irq, int dma1, int dma2, unsigned short hardware, unsigned short hwshare, struct snd_cs4231 ** rchip) { static struct snd_device_ops ops = { .dev_free = snd_cs4231_dev_free, }; struct snd_cs4231 *chip; int err; err = snd_cs4231_new(card, hardware, hwshare, &chip); if (err < 0) return err; chip->irq = -1; chip->dma1 = -1; chip->dma2 = -1; if ((chip->res_port = request_region(port, 4, "CS4231")) == NULL) { snd_printk(KERN_ERR "cs4231: can't grab port 0x%lx\n", port); snd_cs4231_free(chip); return -EBUSY; } chip->port = port; if ((long)cport >= 0 && (chip->res_cport = request_region(cport, 8, "CS4232 Control")) == NULL) { snd_printk(KERN_ERR "cs4231: can't grab control port 0x%lx\n", cport); snd_cs4231_free(chip); return -ENODEV; } chip->cport = cport; if (!(hwshare & CS4231_HWSHARE_IRQ) && request_irq(irq, snd_cs4231_interrupt, SA_INTERRUPT, "CS4231", (void *) chip)) { snd_printk(KERN_ERR "cs4231: can't grab IRQ %d\n", irq); snd_cs4231_free(chip); return -EBUSY; } chip->irq = irq; if (!(hwshare & CS4231_HWSHARE_DMA1) && request_dma(dma1, "CS4231 - 1")) { snd_printk(KERN_ERR "cs4231: can't grab DMA1 %d\n", dma1); snd_cs4231_free(chip); return -EBUSY; } chip->dma1 = dma1; if (!(hwshare & CS4231_HWSHARE_DMA2) && dma1 != dma2 && dma2 >= 0 && request_dma(dma2, "CS4231 - 2")) { snd_printk(KERN_ERR "cs4231: can't grab DMA2 %d\n", dma2); snd_cs4231_free(chip); return -EBUSY; } if (dma1 == dma2 || dma2 < 0) { chip->single_dma = 1; chip->dma2 = chip->dma1; } else chip->dma2 = dma2; /* global setup */ if (snd_cs4231_probe(chip) < 0) { snd_cs4231_free(chip); return -ENODEV; } snd_cs4231_init(chip); if (chip->hardware & CS4231_HW_CS4232_MASK) { if (chip->res_cport == NULL) snd_printk("CS4232 control port features are not accessible\n"); } /* Register device */ if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) { snd_cs4231_free(chip); return err; } #ifdef CONFIG_PM /* Power Management */ chip->suspend = snd_cs4231_suspend; chip->resume = snd_cs4231_resume; snd_card_set_isa_pm_callback(card, snd_cs4231_pm_suspend, snd_cs4231_pm_resume, chip); #endif *rchip = chip; return 0; } static struct snd_pcm_ops snd_cs4231_playback_ops = { .open = snd_cs4231_playback_open, .close = snd_cs4231_playback_close, .ioctl = snd_pcm_lib_ioctl, .hw_params = snd_cs4231_playback_hw_params, .hw_free = snd_cs4231_playback_hw_free, .prepare = snd_cs4231_playback_prepare, .trigger = snd_cs4231_trigger, .pointer = snd_cs4231_playback_pointer, }; static struct snd_pcm_ops snd_cs4231_capture_ops = { .open = snd_cs4231_capture_open, .close = snd_cs4231_capture_close, .ioctl = snd_pcm_lib_ioctl, .hw_params = snd_cs4231_capture_hw_params, .hw_free = snd_cs4231_capture_hw_free, .prepare = snd_cs4231_capture_prepare, .trigger = snd_cs4231_trigger, .pointer = snd_cs4231_capture_pointer, }; int snd_cs4231_pcm(struct snd_cs4231 *chip, int device, struct snd_pcm **rpcm) { struct snd_pcm *pcm; int err; if ((err = snd_pcm_new(chip->card, "CS4231", device, 1, 1, &pcm)) < 0) return err; spin_lock_init(&chip->reg_lock); init_MUTEX(&chip->mce_mutex); init_MUTEX(&chip->open_mutex); snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs4231_playback_ops); snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_cs4231_capture_ops); /* global setup */ pcm->private_data = chip; pcm->info_flags = 0; if (chip->single_dma) pcm->info_flags |= SNDRV_PCM_INFO_HALF_DUPLEX; if (chip->hardware != CS4231_HW_INTERWAVE) pcm->info_flags |= SNDRV_PCM_INFO_JOINT_DUPLEX; strcpy(pcm->name, snd_cs4231_chip_id(chip)); snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, snd_dma_isa_data(), 64*1024, chip->dma1 > 3 || chip->dma2 > 3 ? 128*1024 : 64*1024); chip->pcm = pcm; if (rpcm) *rpcm = pcm; return 0; } static void snd_cs4231_timer_free(struct snd_timer *timer) { struct snd_cs4231 *chip = timer->private_data; chip->timer = NULL; } int snd_cs4231_timer(struct snd_cs4231 *chip, int device, struct snd_timer **rtimer) { struct snd_timer *timer; struct snd_timer_id tid; int err; /* Timer initialization */ tid.dev_class = SNDRV_TIMER_CLASS_CARD; tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE; tid.card = chip->card->number; tid.device = device; tid.subdevice = 0; if ((err = snd_timer_new(chip->card, "CS4231", &tid, &timer)) < 0) return err; strcpy(timer->name, snd_cs4231_chip_id(chip)); timer->private_data = chip; timer->private_free = snd_cs4231_timer_free; timer->hw = snd_cs4231_timer_table; chip->timer = timer; if (rtimer) *rtimer = timer; return 0; } /* * MIXER part */ static int snd_cs4231_info_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) { static char *texts[4] = { "Line", "Aux", "Mic", "Mix" }; static char *opl3sa_texts[4] = { "Line", "CD", "Mic", "Mix" }; static char *gusmax_texts[4] = { "Line", "Synth", "Mic", "Mix" }; char **ptexts = texts; struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol); snd_assert(chip->card != NULL, return -EINVAL); uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; uinfo->count = 2; uinfo->value.enumerated.items = 4; if (uinfo->value.enumerated.item > 3) uinfo->value.enumerated.item = 3; if (!strcmp(chip->card->driver, "GUS MAX")) ptexts = gusmax_texts; switch (chip->hardware) { case CS4231_HW_INTERWAVE: ptexts = gusmax_texts; break; case CS4231_HW_OPL3SA2: ptexts = opl3sa_texts; break; } strcpy(uinfo->value.enumerated.name, ptexts[uinfo->value.enumerated.item]); return 0; } static int snd_cs4231_get_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol); unsigned long flags; spin_lock_irqsave(&chip->reg_lock, flags); ucontrol->value.enumerated.item[0] = (chip->image[CS4231_LEFT_INPUT] & CS4231_MIXS_ALL) >> 6; ucontrol->value.enumerated.item[1] = (chip->image[CS4231_RIGHT_INPUT] & CS4231_MIXS_ALL) >> 6; spin_unlock_irqrestore(&chip->reg_lock, flags); return 0; } static int snd_cs4231_put_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol); unsigned long flags; unsigned short left, right; int change; if (ucontrol->value.enumerated.item[0] > 3 || ucontrol->value.enumerated.item[1] > 3) return -EINVAL; left = ucontrol->value.enumerated.item[0] << 6; right = ucontrol->value.enumerated.item[1] << 6; spin_lock_irqsave(&chip->reg_lock, flags); left = (chip->image[CS4231_LEFT_INPUT] & ~CS4231_MIXS_ALL) | left; right = (chip->image[CS4231_RIGHT_INPUT] & ~CS4231_MIXS_ALL) | right; change = left != chip->image[CS4231_LEFT_INPUT] || right != chip->image[CS4231_RIGHT_INPUT]; snd_cs4231_out(chip, CS4231_LEFT_INPUT, left); snd_cs4231_out(chip, CS4231_RIGHT_INPUT, right); spin_unlock_irqrestore(&chip->reg_lock, flags); return change; } int snd_cs4231_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) { int mask = (kcontrol->private_value >> 16) & 0xff; uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER; uinfo->count = 1; uinfo->value.integer.min = 0; uinfo->value.integer.max = mask; return 0; } int snd_cs4231_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol); unsigned long flags; int reg = kcontrol->private_value & 0xff; int shift = (kcontrol->private_value >> 8) & 0xff; int mask = (kcontrol->private_value >> 16) & 0xff; int invert = (kcontrol->private_value >> 24) & 0xff; spin_lock_irqsave(&chip->reg_lock, flags); ucontrol->value.integer.value[0] = (chip->image[reg] >> shift) & mask; spin_unlock_irqrestore(&chip->reg_lock, flags); if (invert) ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0]; return 0; } int snd_cs4231_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol); unsigned long flags; int reg = kcontrol->private_value & 0xff; int shift = (kcontrol->private_value >> 8) & 0xff; int mask = (kcontrol->private_value >> 16) & 0xff; int invert = (kcontrol->private_value >> 24) & 0xff; int change; unsigned short val; val = (ucontrol->value.integer.value[0] & mask); if (invert) val = mask - val; val <<= shift; spin_lock_irqsave(&chip->reg_lock, flags); val = (chip->image[reg] & ~(mask << shift)) | val; change = val != chip->image[reg]; snd_cs4231_out(chip, reg, val); spin_unlock_irqrestore(&chip->reg_lock, flags); return change; } int snd_cs4231_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) { int mask = (kcontrol->private_value >> 24) & 0xff; uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER; uinfo->count = 2; uinfo->value.integer.min = 0; uinfo->value.integer.max = mask; return 0; } int snd_cs4231_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol); unsigned long flags; int left_reg = kcontrol->private_value & 0xff; int right_reg = (kcontrol->private_value >> 8) & 0xff; int shift_left = (kcontrol->private_value >> 16) & 0x07; int shift_right = (kcontrol->private_value >> 19) & 0x07; int mask = (kcontrol->private_value >> 24) & 0xff; int invert = (kcontrol->private_value >> 22) & 1; spin_lock_irqsave(&chip->reg_lock, flags); ucontrol->value.integer.value[0] = (chip->image[left_reg] >> shift_left) & mask; ucontrol->value.integer.value[1] = (chip->image[right_reg] >> shift_right) & mask; spin_unlock_irqrestore(&chip->reg_lock, flags); if (invert) { ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0]; ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1]; } return 0; } int snd_cs4231_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol); unsigned long flags; int left_reg = kcontrol->private_value & 0xff; int right_reg = (kcontrol->private_value >> 8) & 0xff; int shift_left = (kcontrol->private_value >> 16) & 0x07; int shift_right = (kcontrol->private_value >> 19) & 0x07; int mask = (kcontrol->private_value >> 24) & 0xff; int invert = (kcontrol->private_value >> 22) & 1; int change; unsigned short val1, val2; val1 = ucontrol->value.integer.value[0] & mask; val2 = ucontrol->value.integer.value[1] & mask; if (invert) { val1 = mask - val1; val2 = mask - val2; } val1 <<= shift_left; val2 <<= shift_right; spin_lock_irqsave(&chip->reg_lock, flags); val1 = (chip->image[left_reg] & ~(mask << shift_left)) | val1; val2 = (chip->image[right_reg] & ~(mask << shift_right)) | val2; change = val1 != chip->image[left_reg] || val2 != chip->image[right_reg]; snd_cs4231_out(chip, left_reg, val1); snd_cs4231_out(chip, right_reg, val2); spin_unlock_irqrestore(&chip->reg_lock, flags); return change; } static struct snd_kcontrol_new snd_cs4231_controls[] = { CS4231_DOUBLE("PCM Playback Switch", 0, CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 7, 7, 1, 1), CS4231_DOUBLE("PCM Playback Volume", 0, CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 0, 0, 63, 1), CS4231_DOUBLE("Line Playback Switch", 0, CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 7, 7, 1, 1), CS4231_DOUBLE("Line Playback Volume", 0, CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 0, 0, 31, 1), CS4231_DOUBLE("Aux Playback Switch", 0, CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 7, 7, 1, 1), CS4231_DOUBLE("Aux Playback Volume", 0, CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 0, 0, 31, 1), CS4231_DOUBLE("Aux Playback Switch", 1, CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 7, 7, 1, 1), CS4231_DOUBLE("Aux Playback Volume", 1, CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 0, 0, 31, 1), CS4231_SINGLE("Mono Playback Switch", 0, CS4231_MONO_CTRL, 7, 1, 1), CS4231_SINGLE("Mono Playback Volume", 0, CS4231_MONO_CTRL, 0, 15, 1), CS4231_SINGLE("Mono Output Playback Switch", 0, CS4231_MONO_CTRL, 6, 1, 1), CS4231_SINGLE("Mono Output Playback Bypass", 0, CS4231_MONO_CTRL, 5, 1, 0), CS4231_DOUBLE("Capture Volume", 0, CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 0, 0, 15, 0), { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = "Capture Source", .info = snd_cs4231_info_mux, .get = snd_cs4231_get_mux, .put = snd_cs4231_put_mux, }, CS4231_DOUBLE("Mic Boost", 0, CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 5, 5, 1, 0), CS4231_SINGLE("Loopback Capture Switch", 0, CS4231_LOOPBACK, 0, 1, 0), CS4231_SINGLE("Loopback Capture Volume", 0, CS4231_LOOPBACK, 2, 63, 1) }; int snd_cs4231_mixer(struct snd_cs4231 *chip) { struct snd_card *card; unsigned int idx; int err; snd_assert(chip != NULL && chip->pcm != NULL, return -EINVAL); card = chip->card; strcpy(card->mixername, chip->pcm->name); for (idx = 0; idx < ARRAY_SIZE(snd_cs4231_controls); idx++) { if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_cs4231_controls[idx], chip))) < 0) return err; } return 0; } EXPORT_SYMBOL(snd_cs4231_out); EXPORT_SYMBOL(snd_cs4231_in); EXPORT_SYMBOL(snd_cs4236_ext_out); EXPORT_SYMBOL(snd_cs4236_ext_in); EXPORT_SYMBOL(snd_cs4231_mce_up); EXPORT_SYMBOL(snd_cs4231_mce_down); EXPORT_SYMBOL(snd_cs4231_interrupt); EXPORT_SYMBOL(snd_cs4231_chip_id); EXPORT_SYMBOL(snd_cs4231_create); EXPORT_SYMBOL(snd_cs4231_pcm); EXPORT_SYMBOL(snd_cs4231_mixer); EXPORT_SYMBOL(snd_cs4231_timer); EXPORT_SYMBOL(snd_cs4231_info_single); EXPORT_SYMBOL(snd_cs4231_get_single); EXPORT_SYMBOL(snd_cs4231_put_single); EXPORT_SYMBOL(snd_cs4231_info_double); EXPORT_SYMBOL(snd_cs4231_get_double); EXPORT_SYMBOL(snd_cs4231_put_double); /* * INIT part */ static int __init alsa_cs4231_init(void) { return 0; } static void __exit alsa_cs4231_exit(void) { } module_init(alsa_cs4231_init) module_exit(alsa_cs4231_exit)