sound/isa/cs423x/cs4231_lib.c

   1 /*
   2  *  Copyright (c) by Jaroslav Kysela <perex@suse.cz>
   3  *  Routines for control of CS4231(A)/CS4232/InterWave & compatible chips
   4  *
   5  *  Bugs:
   6  *     - sometimes record brokes playback with WSS portion of
   7  *       Yamaha OPL3-SA3 chip
   8  *     - CS4231 (GUS MAX) - still trouble with occasional noises
   9  *                        - broken initialization?
  10  *
  11  *   This program is free software; you can redistribute it and/or modify
  12  *   it under the terms of the GNU General Public License as published by
  13  *   the Free Software Foundation; either version 2 of the License, or
  14  *   (at your option) any later version.
  15  *
  16  *   This program is distributed in the hope that it will be useful,
  17  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  *   GNU General Public License for more details.
  20  *
  21  *   You should have received a copy of the GNU General Public License
  22  *   along with this program; if not, write to the Free Software
  23  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  24  *
  25  */
  26
  27 #include <sound/driver.h>
  28 #include <linux/delay.h>
  29 #include <linux/pm.h>
  30 #include <linux/init.h>
  31 #include <linux/interrupt.h>
  32 #include <linux/slab.h>
  33 #include <linux/ioport.h>
  34 #include <sound/core.h>
  35 #include <sound/cs4231.h>
  36 #include <sound/pcm_params.h>
  37
  38 #include <asm/io.h>
  39 #include <asm/dma.h>
  40 #include <asm/irq.h>
  41
  42 MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
  43 MODULE_DESCRIPTION("Routines for control of CS4231(A)/CS4232/InterWave & compatible chips");
  44 MODULE_LICENSE("GPL");
  45
  46 #if 0
  47 #define SNDRV_DEBUG_MCE
  48 #endif
  49
  50 /*
  51  *  Some variables
  52  */
  53
  54 static unsigned char freq_bits[14] = {
  55         /* 5510 */      0x00 | CS4231_XTAL2,
  56         /* 6620 */      0x0E | CS4231_XTAL2,
  57         /* 8000 */      0x00 | CS4231_XTAL1,
  58         /* 9600 */      0x0E | CS4231_XTAL1,
  59         /* 11025 */     0x02 | CS4231_XTAL2,
  60         /* 16000 */     0x02 | CS4231_XTAL1,
  61         /* 18900 */     0x04 | CS4231_XTAL2,
  62         /* 22050 */     0x06 | CS4231_XTAL2,
  63         /* 27042 */     0x04 | CS4231_XTAL1,
  64         /* 32000 */     0x06 | CS4231_XTAL1,
  65         /* 33075 */     0x0C | CS4231_XTAL2,
  66         /* 37800 */     0x08 | CS4231_XTAL2,
  67         /* 44100 */     0x0A | CS4231_XTAL2,
  68         /* 48000 */     0x0C | CS4231_XTAL1
  69 };
  70
  71 static unsigned int rates[14] = {
  72         5510, 6620, 8000, 9600, 11025, 16000, 18900, 22050,
  73         27042, 32000, 33075, 37800, 44100, 48000
  74 };
  75
  76 static struct snd_pcm_hw_constraint_list hw_constraints_rates = {
  77         .count = 14,
  78         .list = rates,
  79         .mask = 0,
  80 };
  81
  82 static int snd_cs4231_xrate(struct snd_pcm_runtime *runtime)
  83 {
  84         return snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &hw_constraints_rates);
  85 }
  86
  87 static unsigned char snd_cs4231_original_image[32] =
  88 {
  89         0x00,                   /* 00/00 - lic */
  90         0x00,                   /* 01/01 - ric */
  91         0x9f,                   /* 02/02 - la1ic */
  92         0x9f,                   /* 03/03 - ra1ic */
  93         0x9f,                   /* 04/04 - la2ic */
  94         0x9f,                   /* 05/05 - ra2ic */
  95         0xbf,                   /* 06/06 - loc */
  96         0xbf,                   /* 07/07 - roc */
  97         0x20,                   /* 08/08 - pdfr */
  98         CS4231_AUTOCALIB,       /* 09/09 - ic */
  99         0x00,                   /* 0a/10 - pc */
 100         0x00,                   /* 0b/11 - ti */
 101         CS4231_MODE2,           /* 0c/12 - mi */
 102         0xfc,                   /* 0d/13 - lbc */
 103         0x00,                   /* 0e/14 - pbru */
 104         0x00,                   /* 0f/15 - pbrl */
 105         0x80,                   /* 10/16 - afei */
 106         0x01,                   /* 11/17 - afeii */
 107         0x9f,                   /* 12/18 - llic */
 108         0x9f,                   /* 13/19 - rlic */
 109         0x00,                   /* 14/20 - tlb */
 110         0x00,                   /* 15/21 - thb */
 111         0x00,                   /* 16/22 - la3mic/reserved */
 112         0x00,                   /* 17/23 - ra3mic/reserved */
 113         0x00,                   /* 18/24 - afs */
 114         0x00,                   /* 19/25 - lamoc/version */
 115         0xcf,                   /* 1a/26 - mioc */
 116         0x00,                   /* 1b/27 - ramoc/reserved */
 117         0x20,                   /* 1c/28 - cdfr */
 118         0x00,                   /* 1d/29 - res4 */
 119         0x00,                   /* 1e/30 - cbru */
 120         0x00,                   /* 1f/31 - cbrl */
 121 };
 122
 123 /*
 124  *  Basic I/O functions
 125  */
 126
 127 static inline void cs4231_outb(struct snd_cs4231 *chip, u8 offset, u8 val)
 128 {
 129         outb(val, chip->port + offset);
 130 }
 131
 132 static inline u8 cs4231_inb(struct snd_cs4231 *chip, u8 offset)
 133 {
 134         return inb(chip->port + offset);
 135 }
 136
 137 static void snd_cs4231_outm(struct snd_cs4231 *chip, unsigned char reg,
 138                             unsigned char mask, unsigned char value)
 139 {
 140         int timeout;
 141         unsigned char tmp;
 142
 143         for (timeout = 250;
 144              timeout > 0 && (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT);
 145              timeout--)
 146                 udelay(100);
 147 #ifdef CONFIG_SND_DEBUG
 148         if (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT)
 149                 snd_printk("outm: auto calibration time out - reg = 0x%x, value = 0x%x\n", reg, value);
 150 #endif
 151         if (chip->calibrate_mute) {
 152                 chip->image[reg] &= mask;
 153                 chip->image[reg] |= value;
 154         } else {
 155                 cs4231_outb(chip, CS4231P(REGSEL), chip->mce_bit | reg);
 156                 mb();
 157                 tmp = (chip->image[reg] & mask) | value;
 158                 cs4231_outb(chip, CS4231P(REG), tmp);
 159                 chip->image[reg] = tmp;
 160                 mb();
 161         }
 162 }
 163
 164 static void snd_cs4231_dout(struct snd_cs4231 *chip, unsigned char reg, unsigned char value)
 165 {
 166         int timeout;
 167
 168         for (timeout = 250;
 169              timeout > 0 && (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT);
 170              timeout--)
 171                 udelay(10);
 172         cs4231_outb(chip, CS4231P(REGSEL), chip->mce_bit | reg);
 173         cs4231_outb(chip, CS4231P(REG), value);
 174         mb();
 175 }
 176
 177 void snd_cs4231_out(struct snd_cs4231 *chip, unsigned char reg, unsigned char value)
 178 {
 179         int timeout;
 180
 181         for (timeout = 250;
 182              timeout > 0 && (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT);
 183              timeout--)
 184                 udelay(100);
 185 #ifdef CONFIG_SND_DEBUG
 186         if (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT)
 187                 snd_printk("out: auto calibration time out - reg = 0x%x, value = 0x%x\n", reg, value);
 188 #endif
 189         cs4231_outb(chip, CS4231P(REGSEL), chip->mce_bit | reg);
 190         cs4231_outb(chip, CS4231P(REG), value);
 191         chip->image[reg] = value;
 192         mb();
 193 #if 0
 194         printk("codec out - reg 0x%x = 0x%x\n", chip->mce_bit | reg, value);
 195 #endif
 196 }
 197
 198 unsigned char snd_cs4231_in(struct snd_cs4231 *chip, unsigned char reg)
 199 {
 200         int timeout;
 201
 202         for (timeout = 250;
 203              timeout > 0 && (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT);
 204              timeout--)
 205                 udelay(100);
 206 #ifdef CONFIG_SND_DEBUG
 207         if (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT)
 208                 snd_printk("in: auto calibration time out - reg = 0x%x\n", reg);
 209 #endif
 210         cs4231_outb(chip, CS4231P(REGSEL), chip->mce_bit | reg);
 211         mb();
 212         return cs4231_inb(chip, CS4231P(REG));
 213 }
 214
 215 void snd_cs4236_ext_out(struct snd_cs4231 *chip, unsigned char reg, unsigned char val)
 216 {
 217         cs4231_outb(chip, CS4231P(REGSEL), chip->mce_bit | 0x17);
 218         cs4231_outb(chip, CS4231P(REG), reg | (chip->image[CS4236_EXT_REG] & 0x01));
 219         cs4231_outb(chip, CS4231P(REG), val);
 220         chip->eimage[CS4236_REG(reg)] = val;
 221 #if 0
 222         printk("ext out : reg = 0x%x, val = 0x%x\n", reg, val);
 223 #endif
 224 }
 225
 226 unsigned char snd_cs4236_ext_in(struct snd_cs4231 *chip, unsigned char reg)
 227 {
 228         cs4231_outb(chip, CS4231P(REGSEL), chip->mce_bit | 0x17);
 229         cs4231_outb(chip, CS4231P(REG), reg | (chip->image[CS4236_EXT_REG] & 0x01));
 230 #if 1
 231         return cs4231_inb(chip, CS4231P(REG));
 232 #else
 233         {
 234                 unsigned char res;
 235                 res = cs4231_inb(chip, CS4231P(REG));
 236                 printk("ext in : reg = 0x%x, val = 0x%x\n", reg, res);
 237                 return res;
 238         }
 239 #endif
 240 }
 241
 242 #if 0
 243
 244 static void snd_cs4231_debug(struct snd_cs4231 *chip)
 245 {
 246         printk("CS4231 REGS:      INDEX = 0x%02x  ", cs4231_inb(chip, CS4231P(REGSEL)));
 247         printk("                 STATUS = 0x%02x\n", cs4231_inb(chip, CS4231P(STATUS)));
 248         printk("  0x00: left input      = 0x%02x  ", snd_cs4231_in(chip, 0x00));
 249         printk("  0x10: alt 1 (CFIG 2)  = 0x%02x\n", snd_cs4231_in(chip, 0x10));
 250         printk("  0x01: right input     = 0x%02x  ", snd_cs4231_in(chip, 0x01));
 251         printk("  0x11: alt 2 (CFIG 3)  = 0x%02x\n", snd_cs4231_in(chip, 0x11));
 252         printk("  0x02: GF1 left input  = 0x%02x  ", snd_cs4231_in(chip, 0x02));
 253         printk("  0x12: left line in    = 0x%02x\n", snd_cs4231_in(chip, 0x12));
 254         printk("  0x03: GF1 right input = 0x%02x  ", snd_cs4231_in(chip, 0x03));
 255         printk("  0x13: right line in   = 0x%02x\n", snd_cs4231_in(chip, 0x13));
 256         printk("  0x04: CD left input   = 0x%02x  ", snd_cs4231_in(chip, 0x04));
 257         printk("  0x14: timer low       = 0x%02x\n", snd_cs4231_in(chip, 0x14));
 258         printk("  0x05: CD right input  = 0x%02x  ", snd_cs4231_in(chip, 0x05));
 259         printk("  0x15: timer high      = 0x%02x\n", snd_cs4231_in(chip, 0x15));
 260         printk("  0x06: left output     = 0x%02x  ", snd_cs4231_in(chip, 0x06));
 261         printk("  0x16: left MIC (PnP)  = 0x%02x\n", snd_cs4231_in(chip, 0x16));
 262         printk("  0x07: right output    = 0x%02x  ", snd_cs4231_in(chip, 0x07));
 263         printk("  0x17: right MIC (PnP) = 0x%02x\n", snd_cs4231_in(chip, 0x17));
 264         printk("  0x08: playback format = 0x%02x  ", snd_cs4231_in(chip, 0x08));
 265         printk("  0x18: IRQ status      = 0x%02x\n", snd_cs4231_in(chip, 0x18));
 266         printk("  0x09: iface (CFIG 1)  = 0x%02x  ", snd_cs4231_in(chip, 0x09));
 267         printk("  0x19: left line out   = 0x%02x\n", snd_cs4231_in(chip, 0x19));
 268         printk("  0x0a: pin control     = 0x%02x  ", snd_cs4231_in(chip, 0x0a));
 269         printk("  0x1a: mono control    = 0x%02x\n", snd_cs4231_in(chip, 0x1a));
 270         printk("  0x0b: init & status   = 0x%02x  ", snd_cs4231_in(chip, 0x0b));
 271         printk("  0x1b: right line out  = 0x%02x\n", snd_cs4231_in(chip, 0x1b));
 272         printk("  0x0c: revision & mode = 0x%02x  ", snd_cs4231_in(chip, 0x0c));
 273         printk("  0x1c: record format   = 0x%02x\n", snd_cs4231_in(chip, 0x1c));
 274         printk("  0x0d: loopback        = 0x%02x  ", snd_cs4231_in(chip, 0x0d));
 275         printk("  0x1d: var freq (PnP)  = 0x%02x\n", snd_cs4231_in(chip, 0x1d));
 276         printk("  0x0e: ply upr count   = 0x%02x  ", snd_cs4231_in(chip, 0x0e));
 277         printk("  0x1e: ply lwr count   = 0x%02x\n", snd_cs4231_in(chip, 0x1e));
 278         printk("  0x0f: rec upr count   = 0x%02x  ", snd_cs4231_in(chip, 0x0f));
 279         printk("  0x1f: rec lwr count   = 0x%02x\n", snd_cs4231_in(chip, 0x1f));
 280 }
 281
 282 #endif
 283
 284 /*
 285  *  CS4231 detection / MCE routines
 286  */
 287
 288 static void snd_cs4231_busy_wait(struct snd_cs4231 *chip)
 289 {
 290         int timeout;
 291
 292         /* huh.. looks like this sequence is proper for CS4231A chip (GUS MAX) */
 293         for (timeout = 5; timeout > 0; timeout--)
 294                 cs4231_inb(chip, CS4231P(REGSEL));
 295         /* end of cleanup sequence */
 296         for (timeout = 250;
 297              timeout > 0 && (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT);
 298              timeout--)
 299                 udelay(10);
 300 }
 301
 302 void snd_cs4231_mce_up(struct snd_cs4231 *chip)
 303 {
 304         unsigned long flags;
 305         int timeout;
 306
 307         for (timeout = 250; timeout > 0 && (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT); timeout--)
 308                 udelay(100);
 309 #ifdef CONFIG_SND_DEBUG
 310         if (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT)
 311                 snd_printk("mce_up - auto calibration time out (0)\n");
 312 #endif
 313         spin_lock_irqsave(&chip->reg_lock, flags);
 314         chip->mce_bit |= CS4231_MCE;
 315         timeout = cs4231_inb(chip, CS4231P(REGSEL));
 316         if (timeout == 0x80)
 317                 snd_printk("mce_up [0x%lx]: serious init problem - codec still busy\n", chip->port);
 318         if (!(timeout & CS4231_MCE))
 319                 cs4231_outb(chip, CS4231P(REGSEL), chip->mce_bit | (timeout & 0x1f));
 320         spin_unlock_irqrestore(&chip->reg_lock, flags);
 321 }
 322
 323 void snd_cs4231_mce_down(struct snd_cs4231 *chip)
 324 {
 325         unsigned long flags;
 326         int timeout;
 327
 328         snd_cs4231_busy_wait(chip);
 329 #if 0
 330         printk("(1) timeout = %i\n", timeout);
 331 #endif
 332 #ifdef CONFIG_SND_DEBUG
 333         if (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT)
 334                 snd_printk("mce_down [0x%lx] - auto calibration time out (0)\n", (long)CS4231P(REGSEL));
 335 #endif
 336         spin_lock_irqsave(&chip->reg_lock, flags);
 337         chip->mce_bit &= ~CS4231_MCE;
 338         timeout = cs4231_inb(chip, CS4231P(REGSEL));
 339         cs4231_outb(chip, CS4231P(REGSEL), chip->mce_bit | (timeout & 0x1f));
 340         spin_unlock_irqrestore(&chip->reg_lock, flags);
 341         if (timeout == 0x80)
 342                 snd_printk("mce_down [0x%lx]: serious init problem - codec still busy\n", chip->port);
 343         if ((timeout & CS4231_MCE) == 0 ||
 344             !(chip->hardware & (CS4231_HW_CS4231_MASK | CS4231_HW_CS4232_MASK))) {
 345                 return;
 346         }
 347         snd_cs4231_busy_wait(chip);
 348
 349         /* calibration process */
 350
 351         for (timeout = 500; timeout > 0 && (snd_cs4231_in(chip, CS4231_TEST_INIT) & CS4231_CALIB_IN_PROGRESS) == 0; timeout--)
 352                 udelay(10);
 353         if ((snd_cs4231_in(chip, CS4231_TEST_INIT) & CS4231_CALIB_IN_PROGRESS) == 0) {
 354                 snd_printd("cs4231_mce_down - auto calibration time out (1)\n");
 355                 return;
 356         }
 357 #if 0
 358         printk("(2) timeout = %i, jiffies = %li\n", timeout, jiffies);
 359 #endif
 360         /* in 10 ms increments, check condition, up to 250 ms */
 361         timeout = 25;
 362         while (snd_cs4231_in(chip, CS4231_TEST_INIT) & CS4231_CALIB_IN_PROGRESS) {
 363                 if (--timeout < 0) {
 364                         snd_printk("mce_down - auto calibration time out (2)\n");
 365                         return;
 366                 }
 367                 msleep(10);
 368         }
 369 #if 0
 370         printk("(3) jiffies = %li\n", jiffies);
 371 #endif
 372         /* in 10 ms increments, check condition, up to 100 ms */
 373         timeout = 10;
 374         while (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT) {
 375                 if (--timeout < 0) {
 376                         snd_printk(KERN_ERR "mce_down - auto calibration time out (3)\n");
 377                         return;
 378                 }
 379                 msleep(10);
 380         }
 381 #if 0
 382         printk("(4) jiffies = %li\n", jiffies);
 383         snd_printk("mce_down - exit = 0x%x\n", cs4231_inb(chip, CS4231P(REGSEL)));
 384 #endif
 385 }
 386
 387 static unsigned int snd_cs4231_get_count(unsigned char format, unsigned int size)
 388 {
 389         switch (format & 0xe0) {
 390         case CS4231_LINEAR_16:
 391         case CS4231_LINEAR_16_BIG:
 392                 size >>= 1;
 393                 break;
 394         case CS4231_ADPCM_16:
 395                 return size >> 2;
 396         }
 397         if (format & CS4231_STEREO)
 398                 size >>= 1;
 399         return size;
 400 }
 401
 402 static int snd_cs4231_trigger(struct snd_pcm_substream *substream,
 403                               int cmd)
 404 {
 405         struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
 406         int result = 0;
 407         unsigned int what;
 408         struct list_head *pos;
 409         struct snd_pcm_substream *s;
 410         int do_start;
 411
 412 #if 0
 413         printk("codec trigger!!! - what = %i, enable = %i, status = 0x%x\n", what, enable, cs4231_inb(chip, CS4231P(STATUS)));
 414 #endif
 415
 416         switch (cmd) {
 417         case SNDRV_PCM_TRIGGER_START:
 418         case SNDRV_PCM_TRIGGER_RESUME:
 419                 do_start = 1; break;
 420         case SNDRV_PCM_TRIGGER_STOP:
 421         case SNDRV_PCM_TRIGGER_SUSPEND:
 422                 do_start = 0; break;
 423         default:
 424                 return -EINVAL;
 425         }
 426
 427         what = 0;
 428         snd_pcm_group_for_each(pos, substream) {
 429                 s = snd_pcm_group_substream_entry(pos);
 430                 if (s == chip->playback_substream) {
 431                         what |= CS4231_PLAYBACK_ENABLE;
 432                         snd_pcm_trigger_done(s, substream);
 433                 } else if (s == chip->capture_substream) {
 434                         what |= CS4231_RECORD_ENABLE;
 435                         snd_pcm_trigger_done(s, substream);
 436                 }
 437         }
 438         spin_lock(&chip->reg_lock);
 439         if (do_start) {
 440                 chip->image[CS4231_IFACE_CTRL] |= what;
 441                 if (chip->trigger)
 442                         chip->trigger(chip, what, 1);
 443         } else {
 444                 chip->image[CS4231_IFACE_CTRL] &= ~what;
 445                 if (chip->trigger)
 446                         chip->trigger(chip, what, 0);
 447         }
 448         snd_cs4231_out(chip, CS4231_IFACE_CTRL, chip->image[CS4231_IFACE_CTRL]);
 449         spin_unlock(&chip->reg_lock);
 450 #if 0
 451         snd_cs4231_debug(chip);
 452 #endif
 453         return result;
 454 }
 455
 456 /*
 457  *  CODEC I/O
 458  */
 459
 460 static unsigned char snd_cs4231_get_rate(unsigned int rate)
 461 {
 462         int i;
 463
 464         for (i = 0; i < 14; i++)
 465                 if (rate == rates[i])
 466                         return freq_bits[i];
 467         // snd_BUG();
 468         return freq_bits[13];
 469 }
 470
 471 static unsigned char snd_cs4231_get_format(struct snd_cs4231 *chip,
 472                                            int format,
 473                                            int channels)
 474 {
 475         unsigned char rformat;
 476
 477         rformat = CS4231_LINEAR_8;
 478         switch (format) {
 479         case SNDRV_PCM_FORMAT_MU_LAW:   rformat = CS4231_ULAW_8; break;
 480         case SNDRV_PCM_FORMAT_A_LAW:    rformat = CS4231_ALAW_8; break;
 481         case SNDRV_PCM_FORMAT_S16_LE:   rformat = CS4231_LINEAR_16; break;
 482         case SNDRV_PCM_FORMAT_S16_BE:   rformat = CS4231_LINEAR_16_BIG; break;
 483         case SNDRV_PCM_FORMAT_IMA_ADPCM:        rformat = CS4231_ADPCM_16; break;
 484         }
 485         if (channels > 1)
 486                 rformat |= CS4231_STEREO;
 487 #if 0
 488         snd_printk("get_format: 0x%x (mode=0x%x)\n", format, mode);
 489 #endif
 490         return rformat;
 491 }
 492
 493 static void snd_cs4231_calibrate_mute(struct snd_cs4231 *chip, int mute)
 494 {
 495         unsigned long flags;
 496
 497         mute = mute ? 1 : 0;
 498         spin_lock_irqsave(&chip->reg_lock, flags);
 499         if (chip->calibrate_mute == mute) {
 500                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 501                 return;
 502         }
 503         if (!mute) {
 504                 snd_cs4231_dout(chip, CS4231_LEFT_INPUT, chip->image[CS4231_LEFT_INPUT]);
 505                 snd_cs4231_dout(chip, CS4231_RIGHT_INPUT, chip->image[CS4231_RIGHT_INPUT]);
 506                 snd_cs4231_dout(chip, CS4231_LOOPBACK, chip->image[CS4231_LOOPBACK]);
 507         }
 508         snd_cs4231_dout(chip, CS4231_AUX1_LEFT_INPUT, mute ? 0x80 : chip->image[CS4231_AUX1_LEFT_INPUT]);
 509         snd_cs4231_dout(chip, CS4231_AUX1_RIGHT_INPUT, mute ? 0x80 : chip->image[CS4231_AUX1_RIGHT_INPUT]);
 510         snd_cs4231_dout(chip, CS4231_AUX2_LEFT_INPUT, mute ? 0x80 : chip->image[CS4231_AUX2_LEFT_INPUT]);
 511         snd_cs4231_dout(chip, CS4231_AUX2_RIGHT_INPUT, mute ? 0x80 : chip->image[CS4231_AUX2_RIGHT_INPUT]);
 512         snd_cs4231_dout(chip, CS4231_LEFT_OUTPUT, mute ? 0x80 : chip->image[CS4231_LEFT_OUTPUT]);
 513         snd_cs4231_dout(chip, CS4231_RIGHT_OUTPUT, mute ? 0x80 : chip->image[CS4231_RIGHT_OUTPUT]);
 514         snd_cs4231_dout(chip, CS4231_LEFT_LINE_IN, mute ? 0x80 : chip->image[CS4231_LEFT_LINE_IN]);
 515         snd_cs4231_dout(chip, CS4231_RIGHT_LINE_IN, mute ? 0x80 : chip->image[CS4231_RIGHT_LINE_IN]);
 516         snd_cs4231_dout(chip, CS4231_MONO_CTRL, mute ? 0xc0 : chip->image[CS4231_MONO_CTRL]);
 517         if (chip->hardware == CS4231_HW_INTERWAVE) {
 518                 snd_cs4231_dout(chip, CS4231_LEFT_MIC_INPUT, mute ? 0x80 : chip->image[CS4231_LEFT_MIC_INPUT]);
 519                 snd_cs4231_dout(chip, CS4231_RIGHT_MIC_INPUT, mute ? 0x80 : chip->image[CS4231_RIGHT_MIC_INPUT]);
 520                 snd_cs4231_dout(chip, CS4231_LINE_LEFT_OUTPUT, mute ? 0x80 : chip->image[CS4231_LINE_LEFT_OUTPUT]);
 521                 snd_cs4231_dout(chip, CS4231_LINE_RIGHT_OUTPUT, mute ? 0x80 : chip->image[CS4231_LINE_RIGHT_OUTPUT]);
 522         }
 523         chip->calibrate_mute = mute;
 524         spin_unlock_irqrestore(&chip->reg_lock, flags);
 525 }
 526
 527 static void snd_cs4231_playback_format(struct snd_cs4231 *chip,
 528                                        struct snd_pcm_hw_params *params,
 529                                        unsigned char pdfr)
 530 {
 531         unsigned long flags;
 532         int full_calib = 1;
 533
 534         mutex_lock(&chip->mce_mutex);
 535         snd_cs4231_calibrate_mute(chip, 1);
 536         if (chip->hardware == CS4231_HW_CS4231A ||
 537             (chip->hardware & CS4231_HW_CS4232_MASK)) {
 538                 spin_lock_irqsave(&chip->reg_lock, flags);
 539                 if ((chip->image[CS4231_PLAYBK_FORMAT] & 0x0f) == (pdfr & 0x0f)) {      /* rate is same? */
 540                         snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, chip->image[CS4231_ALT_FEATURE_1] | 0x10);
 541                         snd_cs4231_out(chip, CS4231_PLAYBK_FORMAT, chip->image[CS4231_PLAYBK_FORMAT] = pdfr);
 542                         snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, chip->image[CS4231_ALT_FEATURE_1] &= ~0x10);
 543                         udelay(100); /* Fixes audible clicks at least on GUS MAX */
 544                         full_calib = 0;
 545                 }
 546                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 547         }
 548         if (full_calib) {
 549                 snd_cs4231_mce_up(chip);
 550                 spin_lock_irqsave(&chip->reg_lock, flags);
 551                 if (chip->hardware != CS4231_HW_INTERWAVE && !chip->single_dma) {
 552                         snd_cs4231_out(chip, CS4231_PLAYBK_FORMAT,
 553                                         (chip->image[CS4231_IFACE_CTRL] & CS4231_RECORD_ENABLE) ?
 554                                         (pdfr & 0xf0) | (chip->image[CS4231_REC_FORMAT] & 0x0f) :
 555                                         pdfr);
 556                 } else {
 557                         snd_cs4231_out(chip, CS4231_PLAYBK_FORMAT, chip->image[CS4231_PLAYBK_FORMAT] = pdfr);
 558                 }
 559                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 560                 snd_cs4231_mce_down(chip);
 561         }
 562         snd_cs4231_calibrate_mute(chip, 0);
 563         mutex_unlock(&chip->mce_mutex);
 564 }
 565
 566 static void snd_cs4231_capture_format(struct snd_cs4231 *chip,
 567                                       struct snd_pcm_hw_params *params,
 568                                       unsigned char cdfr)
 569 {
 570         unsigned long flags;
 571         int full_calib = 1;
 572
 573         mutex_lock(&chip->mce_mutex);
 574         snd_cs4231_calibrate_mute(chip, 1);
 575         if (chip->hardware == CS4231_HW_CS4231A ||
 576             (chip->hardware & CS4231_HW_CS4232_MASK)) {
 577                 spin_lock_irqsave(&chip->reg_lock, flags);
 578                 if ((chip->image[CS4231_PLAYBK_FORMAT] & 0x0f) == (cdfr & 0x0f) ||      /* rate is same? */
 579                     (chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE)) {
 580                         snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, chip->image[CS4231_ALT_FEATURE_1] | 0x20);
 581                         snd_cs4231_out(chip, CS4231_REC_FORMAT, chip->image[CS4231_REC_FORMAT] = cdfr);
 582                         snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, chip->image[CS4231_ALT_FEATURE_1] &= ~0x20);
 583                         full_calib = 0;
 584                 }
 585                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 586         }
 587         if (full_calib) {
 588                 snd_cs4231_mce_up(chip);
 589                 spin_lock_irqsave(&chip->reg_lock, flags);
 590                 if (chip->hardware != CS4231_HW_INTERWAVE) {
 591                         if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE)) {
 592                                 snd_cs4231_out(chip, CS4231_PLAYBK_FORMAT,
 593                                                ((chip->single_dma ? cdfr : chip->image[CS4231_PLAYBK_FORMAT]) & 0xf0) |
 594                                                (cdfr & 0x0f));
 595                                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 596                                 snd_cs4231_mce_down(chip);
 597                                 snd_cs4231_mce_up(chip);
 598                                 spin_lock_irqsave(&chip->reg_lock, flags);
 599                         }
 600                 }
 601                 snd_cs4231_out(chip, CS4231_REC_FORMAT, cdfr);
 602                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 603                 snd_cs4231_mce_down(chip);
 604         }
 605         snd_cs4231_calibrate_mute(chip, 0);
 606         mutex_unlock(&chip->mce_mutex);
 607 }
 608
 609 /*
 610  *  Timer interface
 611  */
 612
 613 static unsigned long snd_cs4231_timer_resolution(struct snd_timer * timer)
 614 {
 615         struct snd_cs4231 *chip = snd_timer_chip(timer);
 616         if (chip->hardware & CS4231_HW_CS4236B_MASK)
 617                 return 14467;
 618         else
 619                 return chip->image[CS4231_PLAYBK_FORMAT] & 1 ? 9969 : 9920;
 620 }
 621
 622 static int snd_cs4231_timer_start(struct snd_timer * timer)
 623 {
 624         unsigned long flags;
 625         unsigned int ticks;
 626         struct snd_cs4231 *chip = snd_timer_chip(timer);
 627         spin_lock_irqsave(&chip->reg_lock, flags);
 628         ticks = timer->sticks;
 629         if ((chip->image[CS4231_ALT_FEATURE_1] & CS4231_TIMER_ENABLE) == 0 ||
 630             (unsigned char)(ticks >> 8) != chip->image[CS4231_TIMER_HIGH] ||
 631             (unsigned char)ticks != chip->image[CS4231_TIMER_LOW]) {
 632                 snd_cs4231_out(chip, CS4231_TIMER_HIGH, chip->image[CS4231_TIMER_HIGH] = (unsigned char) (ticks >> 8));
 633                 snd_cs4231_out(chip, CS4231_TIMER_LOW, chip->image[CS4231_TIMER_LOW] = (unsigned char) ticks);
 634                 snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, chip->image[CS4231_ALT_FEATURE_1] | CS4231_TIMER_ENABLE);
 635         }
 636         spin_unlock_irqrestore(&chip->reg_lock, flags);
 637         return 0;
 638 }
 639
 640 static int snd_cs4231_timer_stop(struct snd_timer * timer)
 641 {
 642         unsigned long flags;
 643         struct snd_cs4231 *chip = snd_timer_chip(timer);
 644         spin_lock_irqsave(&chip->reg_lock, flags);
 645         snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, chip->image[CS4231_ALT_FEATURE_1] &= ~CS4231_TIMER_ENABLE);
 646         spin_unlock_irqrestore(&chip->reg_lock, flags);
 647         return 0;
 648 }
 649
 650 static void snd_cs4231_init(struct snd_cs4231 *chip)
 651 {
 652         unsigned long flags;
 653
 654         snd_cs4231_mce_down(chip);
 655
 656 #ifdef SNDRV_DEBUG_MCE
 657         snd_printk("init: (1)\n");
 658 #endif
 659         snd_cs4231_mce_up(chip);
 660         spin_lock_irqsave(&chip->reg_lock, flags);
 661         chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO |
 662                              CS4231_RECORD_ENABLE | CS4231_RECORD_PIO |
 663                              CS4231_CALIB_MODE);
 664         chip->image[CS4231_IFACE_CTRL] |= CS4231_AUTOCALIB;
 665         snd_cs4231_out(chip, CS4231_IFACE_CTRL, chip->image[CS4231_IFACE_CTRL]);
 666         spin_unlock_irqrestore(&chip->reg_lock, flags);
 667         snd_cs4231_mce_down(chip);
 668
 669 #ifdef SNDRV_DEBUG_MCE
 670         snd_printk("init: (2)\n");
 671 #endif
 672
 673         snd_cs4231_mce_up(chip);
 674         spin_lock_irqsave(&chip->reg_lock, flags);
 675         snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, chip->image[CS4231_ALT_FEATURE_1]);
 676         spin_unlock_irqrestore(&chip->reg_lock, flags);
 677         snd_cs4231_mce_down(chip);
 678
 679 #ifdef SNDRV_DEBUG_MCE
 680         snd_printk("init: (3) - afei = 0x%x\n", chip->image[CS4231_ALT_FEATURE_1]);
 681 #endif
 682
 683         spin_lock_irqsave(&chip->reg_lock, flags);
 684         snd_cs4231_out(chip, CS4231_ALT_FEATURE_2, chip->image[CS4231_ALT_FEATURE_2]);
 685         spin_unlock_irqrestore(&chip->reg_lock, flags);
 686
 687         snd_cs4231_mce_up(chip);
 688         spin_lock_irqsave(&chip->reg_lock, flags);
 689         snd_cs4231_out(chip, CS4231_PLAYBK_FORMAT, chip->image[CS4231_PLAYBK_FORMAT]);
 690         spin_unlock_irqrestore(&chip->reg_lock, flags);
 691         snd_cs4231_mce_down(chip);
 692
 693 #ifdef SNDRV_DEBUG_MCE
 694         snd_printk("init: (4)\n");
 695 #endif
 696
 697         snd_cs4231_mce_up(chip);
 698         spin_lock_irqsave(&chip->reg_lock, flags);
 699         snd_cs4231_out(chip, CS4231_REC_FORMAT, chip->image[CS4231_REC_FORMAT]);
 700         spin_unlock_irqrestore(&chip->reg_lock, flags);
 701         snd_cs4231_mce_down(chip);
 702
 703 #ifdef SNDRV_DEBUG_MCE
 704         snd_printk("init: (5)\n");
 705 #endif
 706 }
 707
 708 static int snd_cs4231_open(struct snd_cs4231 *chip, unsigned int mode)
 709 {
 710         unsigned long flags;
 711
 712         mutex_lock(&chip->open_mutex);
 713         if ((chip->mode & mode) ||
 714             ((chip->mode & CS4231_MODE_OPEN) && chip->single_dma)) {
 715                 mutex_unlock(&chip->open_mutex);
 716                 return -EAGAIN;
 717         }
 718         if (chip->mode & CS4231_MODE_OPEN) {
 719                 chip->mode |= mode;
 720                 mutex_unlock(&chip->open_mutex);
 721                 return 0;
 722         }
 723         /* ok. now enable and ack CODEC IRQ */
 724         spin_lock_irqsave(&chip->reg_lock, flags);
 725         snd_cs4231_out(chip, CS4231_IRQ_STATUS, CS4231_PLAYBACK_IRQ |
 726                        CS4231_RECORD_IRQ |
 727                        CS4231_TIMER_IRQ);
 728         snd_cs4231_out(chip, CS4231_IRQ_STATUS, 0);
 729         cs4231_outb(chip, CS4231P(STATUS), 0);  /* clear IRQ */
 730         cs4231_outb(chip, CS4231P(STATUS), 0);  /* clear IRQ */
 731         chip->image[CS4231_PIN_CTRL] |= CS4231_IRQ_ENABLE;
 732         snd_cs4231_out(chip, CS4231_PIN_CTRL, chip->image[CS4231_PIN_CTRL]);
 733         snd_cs4231_out(chip, CS4231_IRQ_STATUS, CS4231_PLAYBACK_IRQ |
 734                        CS4231_RECORD_IRQ |
 735                        CS4231_TIMER_IRQ);
 736         snd_cs4231_out(chip, CS4231_IRQ_STATUS, 0);
 737         spin_unlock_irqrestore(&chip->reg_lock, flags);
 738
 739         chip->mode = mode;
 740         mutex_unlock(&chip->open_mutex);
 741         return 0;
 742 }
 743
 744 static void snd_cs4231_close(struct snd_cs4231 *chip, unsigned int mode)
 745 {
 746         unsigned long flags;
 747
 748         mutex_lock(&chip->open_mutex);
 749         chip->mode &= ~mode;
 750         if (chip->mode & CS4231_MODE_OPEN) {
 751                 mutex_unlock(&chip->open_mutex);
 752                 return;
 753         }
 754         snd_cs4231_calibrate_mute(chip, 1);
 755
 756         /* disable IRQ */
 757         spin_lock_irqsave(&chip->reg_lock, flags);
 758         snd_cs4231_out(chip, CS4231_IRQ_STATUS, 0);
 759         cs4231_outb(chip, CS4231P(STATUS), 0);  /* clear IRQ */
 760         cs4231_outb(chip, CS4231P(STATUS), 0);  /* clear IRQ */
 761         chip->image[CS4231_PIN_CTRL] &= ~CS4231_IRQ_ENABLE;
 762         snd_cs4231_out(chip, CS4231_PIN_CTRL, chip->image[CS4231_PIN_CTRL]);
 763
 764         /* now disable record & playback */
 765
 766         if (chip->image[CS4231_IFACE_CTRL] & (CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO |
 767                                                CS4231_RECORD_ENABLE | CS4231_RECORD_PIO)) {
 768                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 769                 snd_cs4231_mce_up(chip);
 770                 spin_lock_irqsave(&chip->reg_lock, flags);
 771                 chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO |
 772                                                      CS4231_RECORD_ENABLE | CS4231_RECORD_PIO);
 773                 snd_cs4231_out(chip, CS4231_IFACE_CTRL, chip->image[CS4231_IFACE_CTRL]);
 774                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 775                 snd_cs4231_mce_down(chip);
 776                 spin_lock_irqsave(&chip->reg_lock, flags);
 777         }
 778
 779         /* clear IRQ again */
 780         snd_cs4231_out(chip, CS4231_IRQ_STATUS, 0);
 781         cs4231_outb(chip, CS4231P(STATUS), 0);  /* clear IRQ */
 782         cs4231_outb(chip, CS4231P(STATUS), 0);  /* clear IRQ */
 783         spin_unlock_irqrestore(&chip->reg_lock, flags);
 784
 785         snd_cs4231_calibrate_mute(chip, 0);
 786
 787         chip->mode = 0;
 788         mutex_unlock(&chip->open_mutex);
 789 }
 790
 791 /*
 792  *  timer open/close
 793  */
 794
 795 static int snd_cs4231_timer_open(struct snd_timer * timer)
 796 {
 797         struct snd_cs4231 *chip = snd_timer_chip(timer);
 798         snd_cs4231_open(chip, CS4231_MODE_TIMER);
 799         return 0;
 800 }
 801
 802 static int snd_cs4231_timer_close(struct snd_timer * timer)
 803 {
 804         struct snd_cs4231 *chip = snd_timer_chip(timer);
 805         snd_cs4231_close(chip, CS4231_MODE_TIMER);
 806         return 0;
 807 }
 808
 809 static struct snd_timer_hardware snd_cs4231_timer_table =
 810 {
 811         .flags =        SNDRV_TIMER_HW_AUTO,
 812         .resolution =   9945,
 813         .ticks =        65535,
 814         .open =         snd_cs4231_timer_open,
 815         .close =        snd_cs4231_timer_close,
 816         .c_resolution = snd_cs4231_timer_resolution,
 817         .start =        snd_cs4231_timer_start,
 818         .stop =         snd_cs4231_timer_stop,
 819 };
 820
 821 /*
 822  *  ok.. exported functions..
 823  */
 824
 825 static int snd_cs4231_playback_hw_params(struct snd_pcm_substream *substream,
 826                                          struct snd_pcm_hw_params *hw_params)
 827 {
 828         struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
 829         unsigned char new_pdfr;
 830         int err;
 831
 832         if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
 833                 return err;
 834         new_pdfr = snd_cs4231_get_format(chip, params_format(hw_params), params_channels(hw_params)) |
 835                    snd_cs4231_get_rate(params_rate(hw_params));
 836         chip->set_playback_format(chip, hw_params, new_pdfr);
 837         return 0;
 838 }
 839
 840 static int snd_cs4231_playback_hw_free(struct snd_pcm_substream *substream)
 841 {
 842         return snd_pcm_lib_free_pages(substream);
 843 }
 844
 845 static int snd_cs4231_playback_prepare(struct snd_pcm_substream *substream)
 846 {
 847         struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
 848         struct snd_pcm_runtime *runtime = substream->runtime;
 849         unsigned long flags;
 850         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
 851         unsigned int count = snd_pcm_lib_period_bytes(substream);
 852
 853         spin_lock_irqsave(&chip->reg_lock, flags);
 854         chip->p_dma_size = size;
 855         chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO);
 856         snd_dma_program(chip->dma1, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT);
 857         count = snd_cs4231_get_count(chip->image[CS4231_PLAYBK_FORMAT], count) - 1;
 858         snd_cs4231_out(chip, CS4231_PLY_LWR_CNT, (unsigned char) count);
 859         snd_cs4231_out(chip, CS4231_PLY_UPR_CNT, (unsigned char) (count >> 8));
 860         spin_unlock_irqrestore(&chip->reg_lock, flags);
 861 #if 0
 862         snd_cs4231_debug(chip);
 863 #endif
 864         return 0;
 865 }
 866
 867 static int snd_cs4231_capture_hw_params(struct snd_pcm_substream *substream,
 868                                         struct snd_pcm_hw_params *hw_params)
 869 {
 870         struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
 871         unsigned char new_cdfr;
 872         int err;
 873
 874         if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
 875                 return err;
 876         new_cdfr = snd_cs4231_get_format(chip, params_format(hw_params), params_channels(hw_params)) |
 877                    snd_cs4231_get_rate(params_rate(hw_params));
 878         chip->set_capture_format(chip, hw_params, new_cdfr);
 879         return 0;
 880 }
 881
 882 static int snd_cs4231_capture_hw_free(struct snd_pcm_substream *substream)
 883 {
 884         return snd_pcm_lib_free_pages(substream);
 885 }
 886
 887 static int snd_cs4231_capture_prepare(struct snd_pcm_substream *substream)
 888 {
 889         struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
 890         struct snd_pcm_runtime *runtime = substream->runtime;
 891         unsigned long flags;
 892         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
 893         unsigned int count = snd_pcm_lib_period_bytes(substream);
 894
 895         spin_lock_irqsave(&chip->reg_lock, flags);
 896         chip->c_dma_size = size;
 897         chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_RECORD_ENABLE | CS4231_RECORD_PIO);
 898         snd_dma_program(chip->dma2, runtime->dma_addr, size, DMA_MODE_READ | DMA_AUTOINIT);
 899         count = snd_cs4231_get_count(chip->image[CS4231_REC_FORMAT], count) - 1;
 900         if (chip->single_dma && chip->hardware != CS4231_HW_INTERWAVE) {
 901                 snd_cs4231_out(chip, CS4231_PLY_LWR_CNT, (unsigned char) count);
 902                 snd_cs4231_out(chip, CS4231_PLY_UPR_CNT, (unsigned char) (count >> 8));
 903         } else {
 904                 snd_cs4231_out(chip, CS4231_REC_LWR_CNT, (unsigned char) count);
 905                 snd_cs4231_out(chip, CS4231_REC_UPR_CNT, (unsigned char) (count >> 8));
 906         }
 907         spin_unlock_irqrestore(&chip->reg_lock, flags);
 908         return 0;
 909 }
 910
 911 static void snd_cs4231_overrange(struct snd_cs4231 *chip)
 912 {
 913         unsigned long flags;
 914         unsigned char res;
 915
 916         spin_lock_irqsave(&chip->reg_lock, flags);
 917         res = snd_cs4231_in(chip, CS4231_TEST_INIT);
 918         spin_unlock_irqrestore(&chip->reg_lock, flags);
 919         if (res & (0x08 | 0x02))        /* detect overrange only above 0dB; may be user selectable? */
 920                 chip->capture_substream->runtime->overrange++;
 921 }
 922
 923 irqreturn_t snd_cs4231_interrupt(int irq, void *dev_id)
 924 {
 925         struct snd_cs4231 *chip = dev_id;
 926         unsigned char status;
 927
 928         status = snd_cs4231_in(chip, CS4231_IRQ_STATUS);
 929         if (status & CS4231_TIMER_IRQ) {
 930                 if (chip->timer)
 931                         snd_timer_interrupt(chip->timer, chip->timer->sticks);
 932         }
 933         if (chip->single_dma && chip->hardware != CS4231_HW_INTERWAVE) {
 934                 if (status & CS4231_PLAYBACK_IRQ) {
 935                         if (chip->mode & CS4231_MODE_PLAY) {
 936                                 if (chip->playback_substream)
 937                                         snd_pcm_period_elapsed(chip->playback_substream);
 938                         }
 939                         if (chip->mode & CS4231_MODE_RECORD) {
 940                                 if (chip->capture_substream) {
 941                                         snd_cs4231_overrange(chip);
 942                                         snd_pcm_period_elapsed(chip->capture_substream);
 943                                 }
 944                         }
 945                 }
 946         } else {
 947                 if (status & CS4231_PLAYBACK_IRQ) {
 948                         if (chip->playback_substream)
 949                                 snd_pcm_period_elapsed(chip->playback_substream);
 950                 }
 951                 if (status & CS4231_RECORD_IRQ) {
 952                         if (chip->capture_substream) {
 953                                 snd_cs4231_overrange(chip);
 954                                 snd_pcm_period_elapsed(chip->capture_substream);
 955                         }
 956                 }
 957         }
 958
 959         spin_lock(&chip->reg_lock);
 960         snd_cs4231_outm(chip, CS4231_IRQ_STATUS, ~CS4231_ALL_IRQS | ~status, 0);
 961         spin_unlock(&chip->reg_lock);
 962         return IRQ_HANDLED;
 963 }
 964
 965 static snd_pcm_uframes_t snd_cs4231_playback_pointer(struct snd_pcm_substream *substream)
 966 {
 967         struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
 968         size_t ptr;
 969
 970         if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE))
 971                 return 0;
 972         ptr = snd_dma_pointer(chip->dma1, chip->p_dma_size);
 973         return bytes_to_frames(substream->runtime, ptr);
 974 }
 975
 976 static snd_pcm_uframes_t snd_cs4231_capture_pointer(struct snd_pcm_substream *substream)
 977 {
 978         struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
 979         size_t ptr;
 980
 981         if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_RECORD_ENABLE))
 982                 return 0;
 983         ptr = snd_dma_pointer(chip->dma2, chip->c_dma_size);
 984         return bytes_to_frames(substream->runtime, ptr);
 985 }
 986
 987 /*
 988
 989  */
 990
 991 static int snd_cs4231_probe(struct snd_cs4231 *chip)
 992 {
 993         unsigned long flags;
 994         int i, id, rev;
 995         unsigned char *ptr;
 996         unsigned int hw;
 997
 998 #if 0
 999         snd_cs4231_debug(chip);
1000 #endif
1001         id = 0;
1002         for (i = 0; i < 50; i++) {
1003                 mb();
1004                 if (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT)
1005                         udelay(2000);
1006                 else {
1007                         spin_lock_irqsave(&chip->reg_lock, flags);
1008                         snd_cs4231_out(chip, CS4231_MISC_INFO, CS4231_MODE2);
1009                         id = snd_cs4231_in(chip, CS4231_MISC_INFO) & 0x0f;
1010                         spin_unlock_irqrestore(&chip->reg_lock, flags);
1011                         if (id == 0x0a)
1012                                 break;  /* this is valid value */
1013                 }
1014         }
1015         snd_printdd("cs4231: port = 0x%lx, id = 0x%x\n", chip->port, id);
1016         if (id != 0x0a)
1017                 return -ENODEV; /* no valid device found */
1018
1019         if (((hw = chip->hardware) & CS4231_HW_TYPE_MASK) == CS4231_HW_DETECT) {
1020                 rev = snd_cs4231_in(chip, CS4231_VERSION) & 0xe7;
1021                 snd_printdd("CS4231: VERSION (I25) = 0x%x\n", rev);
1022                 if (rev == 0x80) {
1023                         unsigned char tmp = snd_cs4231_in(chip, 23);
1024                         snd_cs4231_out(chip, 23, ~tmp);
1025                         if (snd_cs4231_in(chip, 23) != tmp)
1026                                 chip->hardware = CS4231_HW_AD1845;
1027                         else
1028                                 chip->hardware = CS4231_HW_CS4231;
1029                 } else if (rev == 0xa0) {
1030                         chip->hardware = CS4231_HW_CS4231A;
1031                 } else if (rev == 0xa2) {
1032                         chip->hardware = CS4231_HW_CS4232;
1033                 } else if (rev == 0xb2) {
1034                         chip->hardware = CS4231_HW_CS4232A;
1035                 } else if (rev == 0x83) {
1036                         chip->hardware = CS4231_HW_CS4236;
1037                 } else if (rev == 0x03) {
1038                         chip->hardware = CS4231_HW_CS4236B;
1039                 } else {
1040                         snd_printk("unknown CS chip with version 0x%x\n", rev);
1041                         return -ENODEV;         /* unknown CS4231 chip? */
1042                 }
1043         }
1044         spin_lock_irqsave(&chip->reg_lock, flags);
1045         cs4231_inb(chip, CS4231P(STATUS));      /* clear any pendings IRQ */
1046         cs4231_outb(chip, CS4231P(STATUS), 0);
1047         mb();
1048         spin_unlock_irqrestore(&chip->reg_lock, flags);
1049
1050         chip->image[CS4231_MISC_INFO] = CS4231_MODE2;
1051         switch (chip->hardware) {
1052         case CS4231_HW_INTERWAVE:
1053                 chip->image[CS4231_MISC_INFO] = CS4231_IW_MODE3;
1054                 break;
1055         case CS4231_HW_CS4235:
1056         case CS4231_HW_CS4236B:
1057         case CS4231_HW_CS4237B:
1058         case CS4231_HW_CS4238B:
1059         case CS4231_HW_CS4239:
1060                 if (hw == CS4231_HW_DETECT3)
1061                         chip->image[CS4231_MISC_INFO] = CS4231_4236_MODE3;
1062                 else
1063                         chip->hardware = CS4231_HW_CS4236;
1064                 break;
1065         }
1066
1067         chip->image[CS4231_IFACE_CTRL] =
1068             (chip->image[CS4231_IFACE_CTRL] & ~CS4231_SINGLE_DMA) |
1069             (chip->single_dma ? CS4231_SINGLE_DMA : 0);
1070         chip->image[CS4231_ALT_FEATURE_1] = 0x80;
1071         chip->image[CS4231_ALT_FEATURE_2] = chip->hardware == CS4231_HW_INTERWAVE ? 0xc2 : 0x01;
1072         ptr = (unsigned char *) &chip->image;
1073         snd_cs4231_mce_down(chip);
1074         spin_lock_irqsave(&chip->reg_lock, flags);
1075         for (i = 0; i < 32; i++)        /* ok.. fill all CS4231 registers */
1076                 snd_cs4231_out(chip, i, *ptr++);
1077         spin_unlock_irqrestore(&chip->reg_lock, flags);
1078         snd_cs4231_mce_up(chip);
1079         snd_cs4231_mce_down(chip);
1080
1081         mdelay(2);
1082
1083         /* ok.. try check hardware version for CS4236+ chips */
1084         if ((hw & CS4231_HW_TYPE_MASK) == CS4231_HW_DETECT) {
1085                 if (chip->hardware == CS4231_HW_CS4236B) {
1086                         rev = snd_cs4236_ext_in(chip, CS4236_VERSION);
1087                         snd_cs4236_ext_out(chip, CS4236_VERSION, 0xff);
1088                         id = snd_cs4236_ext_in(chip, CS4236_VERSION);
1089                         snd_cs4236_ext_out(chip, CS4236_VERSION, rev);
1090                         snd_printdd("CS4231: ext version; rev = 0x%x, id = 0x%x\n", rev, id);
1091                         if ((id & 0x1f) == 0x1d) {      /* CS4235 */
1092                                 chip->hardware = CS4231_HW_CS4235;
1093                                 switch (id >> 5) {
1094                                 case 4:
1095                                 case 5:
1096                                 case 6:
1097                                         break;
1098                                 default:
1099                                         snd_printk("unknown CS4235 chip (enhanced version = 0x%x)\n", id);
1100                                 }
1101                         } else if ((id & 0x1f) == 0x0b) {       /* CS4236/B */
1102                                 switch (id >> 5) {
1103                                 case 4:
1104                                 case 5:
1105                                 case 6:
1106                                 case 7:
1107                                         chip->hardware = CS4231_HW_CS4236B;
1108                                         break;
1109                                 default:
1110                                         snd_printk("unknown CS4236 chip (enhanced version = 0x%x)\n", id);
1111                                 }
1112                         } else if ((id & 0x1f) == 0x08) {       /* CS4237B */
1113                                 chip->hardware = CS4231_HW_CS4237B;
1114                                 switch (id >> 5) {
1115                                 case 4:
1116                                 case 5:
1117                                 case 6:
1118                                 case 7:
1119                                         break;
1120                                 default:
1121                                         snd_printk("unknown CS4237B chip (enhanced version = 0x%x)\n", id);
1122                                 }
1123                         } else if ((id & 0x1f) == 0x09) {       /* CS4238B */
1124                                 chip->hardware = CS4231_HW_CS4238B;
1125                                 switch (id >> 5) {
1126                                 case 5:
1127                                 case 6:
1128                                 case 7:
1129                                         break;
1130                                 default:
1131                                         snd_printk("unknown CS4238B chip (enhanced version = 0x%x)\n", id);
1132                                 }
1133                         } else if ((id & 0x1f) == 0x1e) {       /* CS4239 */
1134                                 chip->hardware = CS4231_HW_CS4239;
1135                                 switch (id >> 5) {
1136                                 case 4:
1137                                 case 5:
1138                                 case 6:
1139                                         break;
1140                                 default:
1141                                         snd_printk("unknown CS4239 chip (enhanced version = 0x%x)\n", id);
1142                                 }
1143                         } else {
1144                                 snd_printk("unknown CS4236/CS423xB chip (enhanced version = 0x%x)\n", id);
1145                         }
1146                 }
1147         }
1148         return 0;               /* all things are ok.. */
1149 }
1150
1151 /*
1152
1153  */
1154
1155 static struct snd_pcm_hardware snd_cs4231_playback =
1156 {
1157         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1158                                  SNDRV_PCM_INFO_MMAP_VALID |
1159                                  SNDRV_PCM_INFO_RESUME |
1160                                  SNDRV_PCM_INFO_SYNC_START),
1161         .formats =              (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW | SNDRV_PCM_FMTBIT_IMA_ADPCM |
1162                                  SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE),
1163         .rates =                SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
1164         .rate_min =             5510,
1165         .rate_max =             48000,
1166         .channels_min =         1,
1167         .channels_max =         2,
1168         .buffer_bytes_max =     (128*1024),
1169         .period_bytes_min =     64,
1170         .period_bytes_max =     (128*1024),
1171         .periods_min =          1,
1172         .periods_max =          1024,
1173         .fifo_size =            0,
1174 };
1175
1176 static struct snd_pcm_hardware snd_cs4231_capture =
1177 {
1178         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1179                                  SNDRV_PCM_INFO_MMAP_VALID |
1180                                  SNDRV_PCM_INFO_RESUME |
1181                                  SNDRV_PCM_INFO_SYNC_START),
1182         .formats =              (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW | SNDRV_PCM_FMTBIT_IMA_ADPCM |
1183                                  SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE),
1184         .rates =                SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
1185         .rate_min =             5510,
1186         .rate_max =             48000,
1187         .channels_min =         1,
1188         .channels_max =         2,
1189         .buffer_bytes_max =     (128*1024),
1190         .period_bytes_min =     64,
1191         .period_bytes_max =     (128*1024),
1192         .periods_min =          1,
1193         .periods_max =          1024,
1194         .fifo_size =            0,
1195 };
1196
1197 /*
1198
1199  */
1200
1201 static int snd_cs4231_playback_open(struct snd_pcm_substream *substream)
1202 {
1203         struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1204         struct snd_pcm_runtime *runtime = substream->runtime;
1205         int err;
1206
1207         runtime->hw = snd_cs4231_playback;
1208
1209         /* hardware bug in InterWave chipset */
1210         if (chip->hardware == CS4231_HW_INTERWAVE && chip->dma1 > 3)
1211                 runtime->hw.formats &= ~SNDRV_PCM_FMTBIT_MU_LAW;
1212
1213         /* hardware limitation of cheap chips */
1214         if (chip->hardware == CS4231_HW_CS4235 ||
1215             chip->hardware == CS4231_HW_CS4239)
1216                 runtime->hw.formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE;
1217
1218         snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.buffer_bytes_max);
1219         snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.period_bytes_max);
1220
1221         if (chip->claim_dma) {
1222                 if ((err = chip->claim_dma(chip, chip->dma_private_data, chip->dma1)) < 0)
1223                         return err;
1224         }
1225
1226         if ((err = snd_cs4231_open(chip, CS4231_MODE_PLAY)) < 0) {
1227                 if (chip->release_dma)
1228                         chip->release_dma(chip, chip->dma_private_data, chip->dma1);
1229                 snd_free_pages(runtime->dma_area, runtime->dma_bytes);
1230                 return err;
1231         }
1232         chip->playback_substream = substream;
1233         snd_pcm_set_sync(substream);
1234         chip->rate_constraint(runtime);
1235         return 0;
1236 }
1237
1238 static int snd_cs4231_capture_open(struct snd_pcm_substream *substream)
1239 {
1240         struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1241         struct snd_pcm_runtime *runtime = substream->runtime;
1242         int err;
1243
1244         runtime->hw = snd_cs4231_capture;
1245
1246         /* hardware limitation of cheap chips */
1247         if (chip->hardware == CS4231_HW_CS4235 ||
1248             chip->hardware == CS4231_HW_CS4239)
1249                 runtime->hw.formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE;
1250
1251         snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.buffer_bytes_max);
1252         snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.period_bytes_max);
1253
1254         if (chip->claim_dma) {
1255                 if ((err = chip->claim_dma(chip, chip->dma_private_data, chip->dma2)) < 0)
1256                         return err;
1257         }
1258
1259         if ((err = snd_cs4231_open(chip, CS4231_MODE_RECORD)) < 0) {
1260                 if (chip->release_dma)
1261                         chip->release_dma(chip, chip->dma_private_data, chip->dma2);
1262                 snd_free_pages(runtime->dma_area, runtime->dma_bytes);
1263                 return err;
1264         }
1265         chip->capture_substream = substream;
1266         snd_pcm_set_sync(substream);
1267         chip->rate_constraint(runtime);
1268         return 0;
1269 }
1270
1271 static int snd_cs4231_playback_close(struct snd_pcm_substream *substream)
1272 {
1273         struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1274
1275         chip->playback_substream = NULL;
1276         snd_cs4231_close(chip, CS4231_MODE_PLAY);
1277         return 0;
1278 }
1279
1280 static int snd_cs4231_capture_close(struct snd_pcm_substream *substream)
1281 {
1282         struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1283
1284         chip->capture_substream = NULL;
1285         snd_cs4231_close(chip, CS4231_MODE_RECORD);
1286         return 0;
1287 }
1288
1289 #ifdef CONFIG_PM
1290
1291 /* lowlevel suspend callback for CS4231 */
1292 static void snd_cs4231_suspend(struct snd_cs4231 *chip)
1293 {
1294         int reg;
1295         unsigned long flags;
1296
1297         snd_pcm_suspend_all(chip->pcm);
1298         spin_lock_irqsave(&chip->reg_lock, flags);
1299         for (reg = 0; reg < 32; reg++)
1300                 chip->image[reg] = snd_cs4231_in(chip, reg);
1301         spin_unlock_irqrestore(&chip->reg_lock, flags);
1302 }
1303
1304 /* lowlevel resume callback for CS4231 */
1305 static void snd_cs4231_resume(struct snd_cs4231 *chip)
1306 {
1307         int reg;
1308         unsigned long flags;
1309         /* int timeout; */
1310
1311         snd_cs4231_mce_up(chip);
1312         spin_lock_irqsave(&chip->reg_lock, flags);
1313         for (reg = 0; reg < 32; reg++) {
1314                 switch (reg) {
1315                 case CS4231_VERSION:
1316                         break;
1317                 default:
1318                         snd_cs4231_out(chip, reg, chip->image[reg]);
1319                         break;
1320                 }
1321         }
1322         spin_unlock_irqrestore(&chip->reg_lock, flags);
1323 #if 1
1324         snd_cs4231_mce_down(chip);
1325 #else
1326         /* The following is a workaround to avoid freeze after resume on TP600E.
1327            This is the first half of copy of snd_cs4231_mce_down(), but doesn't
1328            include rescheduling.  -- iwai
1329            */
1330         snd_cs4231_busy_wait(chip);
1331         spin_lock_irqsave(&chip->reg_lock, flags);
1332         chip->mce_bit &= ~CS4231_MCE;
1333         timeout = cs4231_inb(chip, CS4231P(REGSEL));
1334         cs4231_outb(chip, CS4231P(REGSEL), chip->mce_bit | (timeout & 0x1f));
1335         spin_unlock_irqrestore(&chip->reg_lock, flags);
1336         if (timeout == 0x80)
1337                 snd_printk("down [0x%lx]: serious init problem - codec still busy\n", chip->port);
1338         if ((timeout & CS4231_MCE) == 0 ||
1339             !(chip->hardware & (CS4231_HW_CS4231_MASK | CS4231_HW_CS4232_MASK))) {
1340                 return;
1341         }
1342         snd_cs4231_busy_wait(chip);
1343 #endif
1344 }
1345 #endif /* CONFIG_PM */
1346
1347 static int snd_cs4231_free(struct snd_cs4231 *chip)
1348 {
1349         release_and_free_resource(chip->res_port);
1350         release_and_free_resource(chip->res_cport);
1351         if (chip->irq >= 0) {
1352                 disable_irq(chip->irq);
1353                 if (!(chip->hwshare & CS4231_HWSHARE_IRQ))
1354                         free_irq(chip->irq, (void *) chip);
1355         }
1356         if (!(chip->hwshare & CS4231_HWSHARE_DMA1) && chip->dma1 >= 0) {
1357                 snd_dma_disable(chip->dma1);
1358                 free_dma(chip->dma1);
1359         }
1360         if (!(chip->hwshare & CS4231_HWSHARE_DMA2) && chip->dma2 >= 0 && chip->dma2 != chip->dma1) {
1361                 snd_dma_disable(chip->dma2);
1362                 free_dma(chip->dma2);
1363         }
1364         if (chip->timer)
1365                 snd_device_free(chip->card, chip->timer);
1366         kfree(chip);
1367         return 0;
1368 }
1369
1370 static int snd_cs4231_dev_free(struct snd_device *device)
1371 {
1372         struct snd_cs4231 *chip = device->device_data;
1373         return snd_cs4231_free(chip);
1374 }
1375
1376 const char *snd_cs4231_chip_id(struct snd_cs4231 *chip)
1377 {
1378         switch (chip->hardware) {
1379         case CS4231_HW_CS4231:  return "CS4231";
1380         case CS4231_HW_CS4231A: return "CS4231A";
1381         case CS4231_HW_CS4232:  return "CS4232";
1382         case CS4231_HW_CS4232A: return "CS4232A";
1383         case CS4231_HW_CS4235:  return "CS4235";
1384         case CS4231_HW_CS4236:  return "CS4236";
1385         case CS4231_HW_CS4236B: return "CS4236B";
1386         case CS4231_HW_CS4237B: return "CS4237B";
1387         case CS4231_HW_CS4238B: return "CS4238B";
1388         case CS4231_HW_CS4239:  return "CS4239";
1389         case CS4231_HW_INTERWAVE: return "AMD InterWave";
1390         case CS4231_HW_OPL3SA2: return chip->card->shortname;
1391         case CS4231_HW_AD1845: return "AD1845";
1392         default: return "???";
1393         }
1394 }
1395
1396 static int snd_cs4231_new(struct snd_card *card,
1397                           unsigned short hardware,
1398                           unsigned short hwshare,
1399                           struct snd_cs4231 ** rchip)
1400 {
1401         struct snd_cs4231 *chip;
1402
1403         *rchip = NULL;
1404         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1405         if (chip == NULL)
1406                 return -ENOMEM;
1407         chip->hardware = hardware;
1408         chip->hwshare = hwshare;
1409
1410         spin_lock_init(&chip->reg_lock);
1411         mutex_init(&chip->mce_mutex);
1412         mutex_init(&chip->open_mutex);
1413         chip->card = card;
1414         chip->rate_constraint = snd_cs4231_xrate;
1415         chip->set_playback_format = snd_cs4231_playback_format;
1416         chip->set_capture_format = snd_cs4231_capture_format;
1417         memcpy(&chip->image, &snd_cs4231_original_image, sizeof(snd_cs4231_original_image));
1418
1419         *rchip = chip;
1420         return 0;
1421 }
1422
1423 int snd_cs4231_create(struct snd_card *card,
1424                       unsigned long port,
1425                       unsigned long cport,
1426                       int irq, int dma1, int dma2,
1427                       unsigned short hardware,
1428                       unsigned short hwshare,
1429                       struct snd_cs4231 ** rchip)
1430 {
1431         static struct snd_device_ops ops = {
1432                 .dev_free =     snd_cs4231_dev_free,
1433         };
1434         struct snd_cs4231 *chip;
1435         int err;
1436
1437         err = snd_cs4231_new(card, hardware, hwshare, &chip);
1438         if (err < 0)
1439                 return err;
1440
1441         chip->irq = -1;
1442         chip->dma1 = -1;
1443         chip->dma2 = -1;
1444
1445         if ((chip->res_port = request_region(port, 4, "CS4231")) == NULL) {
1446                 snd_printk(KERN_ERR "cs4231: can't grab port 0x%lx\n", port);
1447                 snd_cs4231_free(chip);
1448                 return -EBUSY;
1449         }
1450         chip->port = port;
1451         if ((long)cport >= 0 && (chip->res_cport = request_region(cport, 8, "CS4232 Control")) == NULL) {
1452                 snd_printk(KERN_ERR "cs4231: can't grab control port 0x%lx\n", cport);
1453                 snd_cs4231_free(chip);
1454                 return -ENODEV;
1455         }
1456         chip->cport = cport;
1457         if (!(hwshare & CS4231_HWSHARE_IRQ) && request_irq(irq, snd_cs4231_interrupt, IRQF_DISABLED, "CS4231", (void *) chip)) {
1458                 snd_printk(KERN_ERR "cs4231: can't grab IRQ %d\n", irq);
1459                 snd_cs4231_free(chip);
1460                 return -EBUSY;
1461         }
1462         chip->irq = irq;
1463         if (!(hwshare & CS4231_HWSHARE_DMA1) && request_dma(dma1, "CS4231 - 1")) {
1464                 snd_printk(KERN_ERR "cs4231: can't grab DMA1 %d\n", dma1);
1465                 snd_cs4231_free(chip);
1466                 return -EBUSY;
1467         }
1468         chip->dma1 = dma1;
1469         if (!(hwshare & CS4231_HWSHARE_DMA2) && dma1 != dma2 && dma2 >= 0 && request_dma(dma2, "CS4231 - 2")) {
1470                 snd_printk(KERN_ERR "cs4231: can't grab DMA2 %d\n", dma2);
1471                 snd_cs4231_free(chip);
1472                 return -EBUSY;
1473         }
1474         if (dma1 == dma2 || dma2 < 0) {
1475                 chip->single_dma = 1;
1476                 chip->dma2 = chip->dma1;
1477         } else
1478                 chip->dma2 = dma2;
1479
1480         /* global setup */
1481         if (snd_cs4231_probe(chip) < 0) {
1482                 snd_cs4231_free(chip);
1483                 return -ENODEV;
1484         }
1485         snd_cs4231_init(chip);
1486
1487 #if 0
1488         if (chip->hardware & CS4231_HW_CS4232_MASK) {
1489                 if (chip->res_cport == NULL)
1490                         snd_printk("CS4232 control port features are not accessible\n");
1491         }
1492 #endif
1493
1494         /* Register device */
1495         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
1496                 snd_cs4231_free(chip);
1497                 return err;
1498         }
1499
1500 #ifdef CONFIG_PM
1501         /* Power Management */
1502         chip->suspend = snd_cs4231_suspend;
1503         chip->resume = snd_cs4231_resume;
1504 #endif
1505
1506         *rchip = chip;
1507         return 0;
1508 }
1509
1510 static struct snd_pcm_ops snd_cs4231_playback_ops = {
1511         .open =         snd_cs4231_playback_open,
1512         .close =        snd_cs4231_playback_close,
1513         .ioctl =        snd_pcm_lib_ioctl,
1514         .hw_params =    snd_cs4231_playback_hw_params,
1515         .hw_free =      snd_cs4231_playback_hw_free,
1516         .prepare =      snd_cs4231_playback_prepare,
1517         .trigger =      snd_cs4231_trigger,
1518         .pointer =      snd_cs4231_playback_pointer,
1519 };
1520
1521 static struct snd_pcm_ops snd_cs4231_capture_ops = {
1522         .open =         snd_cs4231_capture_open,
1523         .close =        snd_cs4231_capture_close,
1524         .ioctl =        snd_pcm_lib_ioctl,
1525         .hw_params =    snd_cs4231_capture_hw_params,
1526         .hw_free =      snd_cs4231_capture_hw_free,
1527         .prepare =      snd_cs4231_capture_prepare,
1528         .trigger =      snd_cs4231_trigger,
1529         .pointer =      snd_cs4231_capture_pointer,
1530 };
1531
1532 int snd_cs4231_pcm(struct snd_cs4231 *chip, int device, struct snd_pcm **rpcm)
1533 {
1534         struct snd_pcm *pcm;
1535         int err;
1536
1537         if ((err = snd_pcm_new(chip->card, "CS4231", device, 1, 1, &pcm)) < 0)
1538                 return err;
1539
1540         spin_lock_init(&chip->reg_lock);
1541         mutex_init(&chip->mce_mutex);
1542         mutex_init(&chip->open_mutex);
1543
1544         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs4231_playback_ops);
1545         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_cs4231_capture_ops);
1546
1547         /* global setup */
1548         pcm->private_data = chip;
1549         pcm->info_flags = 0;
1550         if (chip->single_dma)
1551                 pcm->info_flags |= SNDRV_PCM_INFO_HALF_DUPLEX;
1552         if (chip->hardware != CS4231_HW_INTERWAVE)
1553                 pcm->info_flags |= SNDRV_PCM_INFO_JOINT_DUPLEX;
1554         strcpy(pcm->name, snd_cs4231_chip_id(chip));
1555
1556         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1557                                               snd_dma_isa_data(),
1558                                               64*1024, chip->dma1 > 3 || chip->dma2 > 3 ? 128*1024 : 64*1024);
1559
1560         chip->pcm = pcm;
1561         if (rpcm)
1562                 *rpcm = pcm;
1563         return 0;
1564 }
1565
1566 static void snd_cs4231_timer_free(struct snd_timer *timer)
1567 {
1568         struct snd_cs4231 *chip = timer->private_data;
1569         chip->timer = NULL;
1570 }
1571
1572 int snd_cs4231_timer(struct snd_cs4231 *chip, int device, struct snd_timer **rtimer)
1573 {
1574         struct snd_timer *timer;
1575         struct snd_timer_id tid;
1576         int err;
1577
1578         /* Timer initialization */
1579         tid.dev_class = SNDRV_TIMER_CLASS_CARD;
1580         tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE;
1581         tid.card = chip->card->number;
1582         tid.device = device;
1583         tid.subdevice = 0;
1584         if ((err = snd_timer_new(chip->card, "CS4231", &tid, &timer)) < 0)
1585                 return err;
1586         strcpy(timer->name, snd_cs4231_chip_id(chip));
1587         timer->private_data = chip;
1588         timer->private_free = snd_cs4231_timer_free;
1589         timer->hw = snd_cs4231_timer_table;
1590         chip->timer = timer;
1591         if (rtimer)
1592                 *rtimer = timer;
1593         return 0;
1594 }
1595
1596 /*
1597  *  MIXER part
1598  */
1599
1600 static int snd_cs4231_info_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1601 {
1602         static char *texts[4] = {
1603                 "Line", "Aux", "Mic", "Mix"
1604         };
1605         static char *opl3sa_texts[4] = {
1606                 "Line", "CD", "Mic", "Mix"
1607         };
1608         static char *gusmax_texts[4] = {
1609                 "Line", "Synth", "Mic", "Mix"
1610         };
1611         char **ptexts = texts;
1612         struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1613
1614         snd_assert(chip->card != NULL, return -EINVAL);
1615         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1616         uinfo->count = 2;
1617         uinfo->value.enumerated.items = 4;
1618         if (uinfo->value.enumerated.item > 3)
1619                 uinfo->value.enumerated.item = 3;
1620         if (!strcmp(chip->card->driver, "GUS MAX"))
1621                 ptexts = gusmax_texts;
1622         switch (chip->hardware) {
1623         case CS4231_HW_INTERWAVE: ptexts = gusmax_texts; break;
1624         case CS4231_HW_OPL3SA2: ptexts = opl3sa_texts; break;
1625         }
1626         strcpy(uinfo->value.enumerated.name, ptexts[uinfo->value.enumerated.item]);
1627         return 0;
1628 }
1629
1630 static int snd_cs4231_get_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1631 {
1632         struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1633         unsigned long flags;
1634
1635         spin_lock_irqsave(&chip->reg_lock, flags);
1636         ucontrol->value.enumerated.item[0] = (chip->image[CS4231_LEFT_INPUT] & CS4231_MIXS_ALL) >> 6;
1637         ucontrol->value.enumerated.item[1] = (chip->image[CS4231_RIGHT_INPUT] & CS4231_MIXS_ALL) >> 6;
1638         spin_unlock_irqrestore(&chip->reg_lock, flags);
1639         return 0;
1640 }
1641
1642 static int snd_cs4231_put_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1643 {
1644         struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1645         unsigned long flags;
1646         unsigned short left, right;
1647         int change;
1648
1649         if (ucontrol->value.enumerated.item[0] > 3 ||
1650             ucontrol->value.enumerated.item[1] > 3)
1651                 return -EINVAL;
1652         left = ucontrol->value.enumerated.item[0] << 6;
1653         right = ucontrol->value.enumerated.item[1] << 6;
1654         spin_lock_irqsave(&chip->reg_lock, flags);
1655         left = (chip->image[CS4231_LEFT_INPUT] & ~CS4231_MIXS_ALL) | left;
1656         right = (chip->image[CS4231_RIGHT_INPUT] & ~CS4231_MIXS_ALL) | right;
1657         change = left != chip->image[CS4231_LEFT_INPUT] ||
1658                  right != chip->image[CS4231_RIGHT_INPUT];
1659         snd_cs4231_out(chip, CS4231_LEFT_INPUT, left);
1660         snd_cs4231_out(chip, CS4231_RIGHT_INPUT, right);
1661         spin_unlock_irqrestore(&chip->reg_lock, flags);
1662         return change;
1663 }
1664
1665 int snd_cs4231_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1666 {
1667         int mask = (kcontrol->private_value >> 16) & 0xff;
1668
1669         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1670         uinfo->count = 1;
1671         uinfo->value.integer.min = 0;
1672         uinfo->value.integer.max = mask;
1673         return 0;
1674 }
1675
1676 int snd_cs4231_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1677 {
1678         struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1679         unsigned long flags;
1680         int reg = kcontrol->private_value & 0xff;
1681         int shift = (kcontrol->private_value >> 8) & 0xff;
1682         int mask = (kcontrol->private_value >> 16) & 0xff;
1683         int invert = (kcontrol->private_value >> 24) & 0xff;
1684
1685         spin_lock_irqsave(&chip->reg_lock, flags);
1686         ucontrol->value.integer.value[0] = (chip->image[reg] >> shift) & mask;
1687         spin_unlock_irqrestore(&chip->reg_lock, flags);
1688         if (invert)
1689                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
1690         return 0;
1691 }
1692
1693 int snd_cs4231_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1694 {
1695         struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1696         unsigned long flags;
1697         int reg = kcontrol->private_value & 0xff;
1698         int shift = (kcontrol->private_value >> 8) & 0xff;
1699         int mask = (kcontrol->private_value >> 16) & 0xff;
1700         int invert = (kcontrol->private_value >> 24) & 0xff;
1701         int change;
1702         unsigned short val;
1703
1704         val = (ucontrol->value.integer.value[0] & mask);
1705         if (invert)
1706                 val = mask - val;
1707         val <<= shift;
1708         spin_lock_irqsave(&chip->reg_lock, flags);
1709         val = (chip->image[reg] & ~(mask << shift)) | val;
1710         change = val != chip->image[reg];
1711         snd_cs4231_out(chip, reg, val);
1712         spin_unlock_irqrestore(&chip->reg_lock, flags);
1713         return change;
1714 }
1715
1716 int snd_cs4231_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1717 {
1718         int mask = (kcontrol->private_value >> 24) & 0xff;
1719
1720         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1721         uinfo->count = 2;
1722         uinfo->value.integer.min = 0;
1723         uinfo->value.integer.max = mask;
1724         return 0;
1725 }
1726
1727 int snd_cs4231_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1728 {
1729         struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1730         unsigned long flags;
1731         int left_reg = kcontrol->private_value & 0xff;
1732         int right_reg = (kcontrol->private_value >> 8) & 0xff;
1733         int shift_left = (kcontrol->private_value >> 16) & 0x07;
1734         int shift_right = (kcontrol->private_value >> 19) & 0x07;
1735         int mask = (kcontrol->private_value >> 24) & 0xff;
1736         int invert = (kcontrol->private_value >> 22) & 1;
1737
1738         spin_lock_irqsave(&chip->reg_lock, flags);
1739         ucontrol->value.integer.value[0] = (chip->image[left_reg] >> shift_left) & mask;
1740         ucontrol->value.integer.value[1] = (chip->image[right_reg] >> shift_right) & mask;
1741         spin_unlock_irqrestore(&chip->reg_lock, flags);
1742         if (invert) {
1743                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
1744                 ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
1745         }
1746         return 0;
1747 }
1748
1749 int snd_cs4231_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1750 {
1751         struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1752         unsigned long flags;
1753         int left_reg = kcontrol->private_value & 0xff;
1754         int right_reg = (kcontrol->private_value >> 8) & 0xff;
1755         int shift_left = (kcontrol->private_value >> 16) & 0x07;
1756         int shift_right = (kcontrol->private_value >> 19) & 0x07;
1757         int mask = (kcontrol->private_value >> 24) & 0xff;
1758         int invert = (kcontrol->private_value >> 22) & 1;
1759         int change;
1760         unsigned short val1, val2;
1761
1762         val1 = ucontrol->value.integer.value[0] & mask;
1763         val2 = ucontrol->value.integer.value[1] & mask;
1764         if (invert) {
1765                 val1 = mask - val1;
1766                 val2 = mask - val2;
1767         }
1768         val1 <<= shift_left;
1769         val2 <<= shift_right;
1770         spin_lock_irqsave(&chip->reg_lock, flags);
1771         val1 = (chip->image[left_reg] & ~(mask << shift_left)) | val1;
1772         val2 = (chip->image[right_reg] & ~(mask << shift_right)) | val2;
1773         change = val1 != chip->image[left_reg] || val2 != chip->image[right_reg];
1774         snd_cs4231_out(chip, left_reg, val1);
1775         snd_cs4231_out(chip, right_reg, val2);
1776         spin_unlock_irqrestore(&chip->reg_lock, flags);
1777         return change;
1778 }
1779
1780 static struct snd_kcontrol_new snd_cs4231_controls[] = {
1781 CS4231_DOUBLE("PCM Playback Switch", 0, CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 7, 7, 1, 1),
1782 CS4231_DOUBLE("PCM Playback Volume", 0, CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 0, 0, 63, 1),
1783 CS4231_DOUBLE("Line Playback Switch", 0, CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 7, 7, 1, 1),
1784 CS4231_DOUBLE("Line Playback Volume", 0, CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 0, 0, 31, 1),
1785 CS4231_DOUBLE("Aux Playback Switch", 0, CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 7, 7, 1, 1),
1786 CS4231_DOUBLE("Aux Playback Volume", 0, CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 0, 0, 31, 1),
1787 CS4231_DOUBLE("Aux Playback Switch", 1, CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 7, 7, 1, 1),
1788 CS4231_DOUBLE("Aux Playback Volume", 1, CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 0, 0, 31, 1),
1789 CS4231_SINGLE("Mono Playback Switch", 0, CS4231_MONO_CTRL, 7, 1, 1),
1790 CS4231_SINGLE("Mono Playback Volume", 0, CS4231_MONO_CTRL, 0, 15, 1),
1791 CS4231_SINGLE("Mono Output Playback Switch", 0, CS4231_MONO_CTRL, 6, 1, 1),
1792 CS4231_SINGLE("Mono Output Playback Bypass", 0, CS4231_MONO_CTRL, 5, 1, 0),
1793 CS4231_DOUBLE("Capture Volume", 0, CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 0, 0, 15, 0),
1794 {
1795         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1796         .name = "Capture Source",
1797         .info = snd_cs4231_info_mux,
1798         .get = snd_cs4231_get_mux,
1799         .put = snd_cs4231_put_mux,
1800 },
1801 CS4231_DOUBLE("Mic Boost", 0, CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 5, 5, 1, 0),
1802 CS4231_SINGLE("Loopback Capture Switch", 0, CS4231_LOOPBACK, 0, 1, 0),
1803 CS4231_SINGLE("Loopback Capture Volume", 0, CS4231_LOOPBACK, 2, 63, 1)
1804 };
1805
1806 int snd_cs4231_mixer(struct snd_cs4231 *chip)
1807 {
1808         struct snd_card *card;
1809         unsigned int idx;
1810         int err;
1811
1812         snd_assert(chip != NULL && chip->pcm != NULL, return -EINVAL);
1813
1814         card = chip->card;
1815
1816         strcpy(card->mixername, chip->pcm->name);
1817
1818         for (idx = 0; idx < ARRAY_SIZE(snd_cs4231_controls); idx++) {
1819                 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_cs4231_controls[idx], chip))) < 0)
1820                         return err;
1821         }
1822         return 0;
1823 }
1824
1825 EXPORT_SYMBOL(snd_cs4231_out);
1826 EXPORT_SYMBOL(snd_cs4231_in);
1827 EXPORT_SYMBOL(snd_cs4236_ext_out);
1828 EXPORT_SYMBOL(snd_cs4236_ext_in);
1829 EXPORT_SYMBOL(snd_cs4231_mce_up);
1830 EXPORT_SYMBOL(snd_cs4231_mce_down);
1831 EXPORT_SYMBOL(snd_cs4231_interrupt);
1832 EXPORT_SYMBOL(snd_cs4231_chip_id);
1833 EXPORT_SYMBOL(snd_cs4231_create);
1834 EXPORT_SYMBOL(snd_cs4231_pcm);
1835 EXPORT_SYMBOL(snd_cs4231_mixer);
1836 EXPORT_SYMBOL(snd_cs4231_timer);
1837 EXPORT_SYMBOL(snd_cs4231_info_single);
1838 EXPORT_SYMBOL(snd_cs4231_get_single);
1839 EXPORT_SYMBOL(snd_cs4231_put_single);
1840 EXPORT_SYMBOL(snd_cs4231_info_double);
1841 EXPORT_SYMBOL(snd_cs4231_get_double);
1842 EXPORT_SYMBOL(snd_cs4231_put_double);
1843
1844 /*
1845  *  INIT part
1846  */
1847
1848 static int __init alsa_cs4231_init(void)
1849 {
1850         return 0;
1851 }
1852
1853 static void __exit alsa_cs4231_exit(void)
1854 {
1855 }
1856
1857 module_init(alsa_cs4231_init)
1858 module_exit(alsa_cs4231_exit)