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 = ARRAY_SIZE(rates),
  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_wait(struct snd_cs4231 *chip)
 138 {
 139         int timeout;
 140
 141         for (timeout = 250;
 142              timeout > 0 && (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT);
 143              timeout--)
 144                 udelay(100);
 145 }
 146
 147 static void snd_cs4231_outm(struct snd_cs4231 *chip, unsigned char reg,
 148                             unsigned char mask, unsigned char value)
 149 {
 150         unsigned char tmp = (chip->image[reg] & mask) | value;
 151
 152         snd_cs4231_wait(chip);
 153 #ifdef CONFIG_SND_DEBUG
 154         if (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT)
 155                 snd_printk("outm: auto calibration time out - reg = 0x%x, value = 0x%x\n", reg, value);
 156 #endif
 157         chip->image[reg] = tmp;
 158         if (!chip->calibrate_mute) {
 159                 cs4231_outb(chip, CS4231P(REGSEL), chip->mce_bit | reg);
 160                 wmb();
 161                 cs4231_outb(chip, CS4231P(REG), tmp);
 162                 mb();
 163         }
 164 }
 165
 166 static void snd_cs4231_dout(struct snd_cs4231 *chip, unsigned char reg, unsigned char value)
 167 {
 168         int timeout;
 169
 170         for (timeout = 250;
 171              timeout > 0 && (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT);
 172              timeout--)
 173                 udelay(10);
 174         cs4231_outb(chip, CS4231P(REGSEL), chip->mce_bit | reg);
 175         cs4231_outb(chip, CS4231P(REG), value);
 176         mb();
 177 }
 178
 179 void snd_cs4231_out(struct snd_cs4231 *chip, unsigned char reg, unsigned char value)
 180 {
 181         snd_cs4231_wait(chip);
 182 #ifdef CONFIG_SND_DEBUG
 183         if (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT)
 184                 snd_printk("out: auto calibration time out - reg = 0x%x, value = 0x%x\n", reg, value);
 185 #endif
 186         cs4231_outb(chip, CS4231P(REGSEL), chip->mce_bit | reg);
 187         cs4231_outb(chip, CS4231P(REG), value);
 188         chip->image[reg] = value;
 189         mb();
 190         snd_printdd("codec out - reg 0x%x = 0x%x\n",
 191                         chip->mce_bit | reg, value);
 192 }
 193
 194 unsigned char snd_cs4231_in(struct snd_cs4231 *chip, unsigned char reg)
 195 {
 196         snd_cs4231_wait(chip);
 197 #ifdef CONFIG_SND_DEBUG
 198         if (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT)
 199                 snd_printk("in: auto calibration time out - reg = 0x%x\n", reg);
 200 #endif
 201         cs4231_outb(chip, CS4231P(REGSEL), chip->mce_bit | reg);
 202         mb();
 203         return cs4231_inb(chip, CS4231P(REG));
 204 }
 205
 206 void snd_cs4236_ext_out(struct snd_cs4231 *chip, unsigned char reg, unsigned char val)
 207 {
 208         cs4231_outb(chip, CS4231P(REGSEL), chip->mce_bit | 0x17);
 209         cs4231_outb(chip, CS4231P(REG), reg | (chip->image[CS4236_EXT_REG] & 0x01));
 210         cs4231_outb(chip, CS4231P(REG), val);
 211         chip->eimage[CS4236_REG(reg)] = val;
 212 #if 0
 213         printk("ext out : reg = 0x%x, val = 0x%x\n", reg, val);
 214 #endif
 215 }
 216
 217 unsigned char snd_cs4236_ext_in(struct snd_cs4231 *chip, unsigned char reg)
 218 {
 219         cs4231_outb(chip, CS4231P(REGSEL), chip->mce_bit | 0x17);
 220         cs4231_outb(chip, CS4231P(REG), reg | (chip->image[CS4236_EXT_REG] & 0x01));
 221 #if 1
 222         return cs4231_inb(chip, CS4231P(REG));
 223 #else
 224         {
 225                 unsigned char res;
 226                 res = cs4231_inb(chip, CS4231P(REG));
 227                 printk("ext in : reg = 0x%x, val = 0x%x\n", reg, res);
 228                 return res;
 229         }
 230 #endif
 231 }
 232
 233 #if 0
 234
 235 static void snd_cs4231_debug(struct snd_cs4231 *chip)
 236 {
 237         printk("CS4231 REGS:      INDEX = 0x%02x  ", cs4231_inb(chip, CS4231P(REGSEL)));
 238         printk("                 STATUS = 0x%02x\n", cs4231_inb(chip, CS4231P(STATUS)));
 239         printk("  0x00: left input      = 0x%02x  ", snd_cs4231_in(chip, 0x00));
 240         printk("  0x10: alt 1 (CFIG 2)  = 0x%02x\n", snd_cs4231_in(chip, 0x10));
 241         printk("  0x01: right input     = 0x%02x  ", snd_cs4231_in(chip, 0x01));
 242         printk("  0x11: alt 2 (CFIG 3)  = 0x%02x\n", snd_cs4231_in(chip, 0x11));
 243         printk("  0x02: GF1 left input  = 0x%02x  ", snd_cs4231_in(chip, 0x02));
 244         printk("  0x12: left line in    = 0x%02x\n", snd_cs4231_in(chip, 0x12));
 245         printk("  0x03: GF1 right input = 0x%02x  ", snd_cs4231_in(chip, 0x03));
 246         printk("  0x13: right line in   = 0x%02x\n", snd_cs4231_in(chip, 0x13));
 247         printk("  0x04: CD left input   = 0x%02x  ", snd_cs4231_in(chip, 0x04));
 248         printk("  0x14: timer low       = 0x%02x\n", snd_cs4231_in(chip, 0x14));
 249         printk("  0x05: CD right input  = 0x%02x  ", snd_cs4231_in(chip, 0x05));
 250         printk("  0x15: timer high      = 0x%02x\n", snd_cs4231_in(chip, 0x15));
 251         printk("  0x06: left output     = 0x%02x  ", snd_cs4231_in(chip, 0x06));
 252         printk("  0x16: left MIC (PnP)  = 0x%02x\n", snd_cs4231_in(chip, 0x16));
 253         printk("  0x07: right output    = 0x%02x  ", snd_cs4231_in(chip, 0x07));
 254         printk("  0x17: right MIC (PnP) = 0x%02x\n", snd_cs4231_in(chip, 0x17));
 255         printk("  0x08: playback format = 0x%02x  ", snd_cs4231_in(chip, 0x08));
 256         printk("  0x18: IRQ status      = 0x%02x\n", snd_cs4231_in(chip, 0x18));
 257         printk("  0x09: iface (CFIG 1)  = 0x%02x  ", snd_cs4231_in(chip, 0x09));
 258         printk("  0x19: left line out   = 0x%02x\n", snd_cs4231_in(chip, 0x19));
 259         printk("  0x0a: pin control     = 0x%02x  ", snd_cs4231_in(chip, 0x0a));
 260         printk("  0x1a: mono control    = 0x%02x\n", snd_cs4231_in(chip, 0x1a));
 261         printk("  0x0b: init & status   = 0x%02x  ", snd_cs4231_in(chip, 0x0b));
 262         printk("  0x1b: right line out  = 0x%02x\n", snd_cs4231_in(chip, 0x1b));
 263         printk("  0x0c: revision & mode = 0x%02x  ", snd_cs4231_in(chip, 0x0c));
 264         printk("  0x1c: record format   = 0x%02x\n", snd_cs4231_in(chip, 0x1c));
 265         printk("  0x0d: loopback        = 0x%02x  ", snd_cs4231_in(chip, 0x0d));
 266         printk("  0x1d: var freq (PnP)  = 0x%02x\n", snd_cs4231_in(chip, 0x1d));
 267         printk("  0x0e: ply upr count   = 0x%02x  ", snd_cs4231_in(chip, 0x0e));
 268         printk("  0x1e: ply lwr count   = 0x%02x\n", snd_cs4231_in(chip, 0x1e));
 269         printk("  0x0f: rec upr count   = 0x%02x  ", snd_cs4231_in(chip, 0x0f));
 270         printk("  0x1f: rec lwr count   = 0x%02x\n", snd_cs4231_in(chip, 0x1f));
 271 }
 272
 273 #endif
 274
 275 /*
 276  *  CS4231 detection / MCE routines
 277  */
 278
 279 static void snd_cs4231_busy_wait(struct snd_cs4231 *chip)
 280 {
 281         int timeout;
 282
 283         /* huh.. looks like this sequence is proper for CS4231A chip (GUS MAX) */
 284         for (timeout = 5; timeout > 0; timeout--)
 285                 cs4231_inb(chip, CS4231P(REGSEL));
 286         /* end of cleanup sequence */
 287         for (timeout = 250;
 288              timeout > 0 && (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT);
 289              timeout--)
 290                 udelay(10);
 291 }
 292
 293 void snd_cs4231_mce_up(struct snd_cs4231 *chip)
 294 {
 295         unsigned long flags;
 296         int timeout;
 297
 298         snd_cs4231_wait(chip);
 299 #ifdef CONFIG_SND_DEBUG
 300         if (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT)
 301                 snd_printk("mce_up - auto calibration time out (0)\n");
 302 #endif
 303         spin_lock_irqsave(&chip->reg_lock, flags);
 304         chip->mce_bit |= CS4231_MCE;
 305         timeout = cs4231_inb(chip, CS4231P(REGSEL));
 306         if (timeout == 0x80)
 307                 snd_printk("mce_up [0x%lx]: serious init problem - codec still busy\n", chip->port);
 308         if (!(timeout & CS4231_MCE))
 309                 cs4231_outb(chip, CS4231P(REGSEL), chip->mce_bit | (timeout & 0x1f));
 310         spin_unlock_irqrestore(&chip->reg_lock, flags);
 311 }
 312
 313 void snd_cs4231_mce_down(struct snd_cs4231 *chip)
 314 {
 315         unsigned long flags;
 316         int timeout;
 317
 318         snd_cs4231_busy_wait(chip);
 319
 320 #ifdef CONFIG_SND_DEBUG
 321         if (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT)
 322                 snd_printk("mce_down [0x%lx] - auto calibration time out (0)\n", (long)CS4231P(REGSEL));
 323 #endif
 324         spin_lock_irqsave(&chip->reg_lock, flags);
 325         chip->mce_bit &= ~CS4231_MCE;
 326         timeout = cs4231_inb(chip, CS4231P(REGSEL));
 327         cs4231_outb(chip, CS4231P(REGSEL), chip->mce_bit | (timeout & 0x1f));
 328         spin_unlock_irqrestore(&chip->reg_lock, flags);
 329         if (timeout == 0x80)
 330                 snd_printk("mce_down [0x%lx]: serious init problem - codec still busy\n", chip->port);
 331         if ((timeout & CS4231_MCE) == 0 ||
 332             !(chip->hardware & (CS4231_HW_CS4231_MASK | CS4231_HW_CS4232_MASK))) {
 333                 return;
 334         }
 335         snd_cs4231_busy_wait(chip);
 336
 337         /*
 338          * Wait for (possible -- during init auto-calibration may not be set)
 339          * calibration process to start. Needs upto 5 sample periods on AD1848
 340          * which at the slowest possible rate of 5.5125 kHz means 907 us.
 341          */
 342         msleep(1);
 343
 344         snd_printdd("(1) jiffies = %lu\n", jiffies);
 345
 346         /* in 10 ms increments, check condition, up to 250 ms */
 347         timeout = 25;
 348         while (snd_cs4231_in(chip, CS4231_TEST_INIT) & CS4231_CALIB_IN_PROGRESS) {
 349                 if (--timeout < 0) {
 350                         snd_printk("mce_down - auto calibration time out (2)\n");
 351                         return;
 352                 }
 353                 msleep(10);
 354         }
 355
 356         snd_printdd("(2) jiffies = %lu\n", jiffies);
 357
 358         /* in 10 ms increments, check condition, up to 100 ms */
 359         timeout = 10;
 360         while (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT) {
 361                 if (--timeout < 0) {
 362                         snd_printk(KERN_ERR "mce_down - auto calibration time out (3)\n");
 363                         return;
 364                 }
 365                 msleep(10);
 366         }
 367
 368         snd_printdd("(3) jiffies = %lu\n", jiffies);
 369         snd_printd("mce_down - exit = 0x%x\n", cs4231_inb(chip, CS4231P(REGSEL)));
 370 }
 371
 372 static unsigned int snd_cs4231_get_count(unsigned char format, unsigned int size)
 373 {
 374         switch (format & 0xe0) {
 375         case CS4231_LINEAR_16:
 376         case CS4231_LINEAR_16_BIG:
 377                 size >>= 1;
 378                 break;
 379         case CS4231_ADPCM_16:
 380                 return size >> 2;
 381         }
 382         if (format & CS4231_STEREO)
 383                 size >>= 1;
 384         return size;
 385 }
 386
 387 static int snd_cs4231_trigger(struct snd_pcm_substream *substream,
 388                               int cmd)
 389 {
 390         struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
 391         int result = 0;
 392         unsigned int what;
 393         struct snd_pcm_substream *s;
 394         int do_start;
 395
 396 #if 0
 397         printk("codec trigger!!! - what = %i, enable = %i, status = 0x%x\n", what, enable, cs4231_inb(chip, CS4231P(STATUS)));
 398 #endif
 399
 400         switch (cmd) {
 401         case SNDRV_PCM_TRIGGER_START:
 402         case SNDRV_PCM_TRIGGER_RESUME:
 403                 do_start = 1; break;
 404         case SNDRV_PCM_TRIGGER_STOP:
 405         case SNDRV_PCM_TRIGGER_SUSPEND:
 406                 do_start = 0; break;
 407         default:
 408                 return -EINVAL;
 409         }
 410
 411         what = 0;
 412         snd_pcm_group_for_each_entry(s, substream) {
 413                 if (s == chip->playback_substream) {
 414                         what |= CS4231_PLAYBACK_ENABLE;
 415                         snd_pcm_trigger_done(s, substream);
 416                 } else if (s == chip->capture_substream) {
 417                         what |= CS4231_RECORD_ENABLE;
 418                         snd_pcm_trigger_done(s, substream);
 419                 }
 420         }
 421         spin_lock(&chip->reg_lock);
 422         if (do_start) {
 423                 chip->image[CS4231_IFACE_CTRL] |= what;
 424                 if (chip->trigger)
 425                         chip->trigger(chip, what, 1);
 426         } else {
 427                 chip->image[CS4231_IFACE_CTRL] &= ~what;
 428                 if (chip->trigger)
 429                         chip->trigger(chip, what, 0);
 430         }
 431         snd_cs4231_out(chip, CS4231_IFACE_CTRL, chip->image[CS4231_IFACE_CTRL]);
 432         spin_unlock(&chip->reg_lock);
 433 #if 0
 434         snd_cs4231_debug(chip);
 435 #endif
 436         return result;
 437 }
 438
 439 /*
 440  *  CODEC I/O
 441  */
 442
 443 static unsigned char snd_cs4231_get_rate(unsigned int rate)
 444 {
 445         int i;
 446
 447         for (i = 0; i < ARRAY_SIZE(rates); i++)
 448                 if (rate == rates[i])
 449                         return freq_bits[i];
 450         // snd_BUG();
 451         return freq_bits[ARRAY_SIZE(rates) - 1];
 452 }
 453
 454 static unsigned char snd_cs4231_get_format(struct snd_cs4231 *chip,
 455                                            int format,
 456                                            int channels)
 457 {
 458         unsigned char rformat;
 459
 460         rformat = CS4231_LINEAR_8;
 461         switch (format) {
 462         case SNDRV_PCM_FORMAT_MU_LAW:   rformat = CS4231_ULAW_8; break;
 463         case SNDRV_PCM_FORMAT_A_LAW:    rformat = CS4231_ALAW_8; break;
 464         case SNDRV_PCM_FORMAT_S16_LE:   rformat = CS4231_LINEAR_16; break;
 465         case SNDRV_PCM_FORMAT_S16_BE:   rformat = CS4231_LINEAR_16_BIG; break;
 466         case SNDRV_PCM_FORMAT_IMA_ADPCM:        rformat = CS4231_ADPCM_16; break;
 467         }
 468         if (channels > 1)
 469                 rformat |= CS4231_STEREO;
 470 #if 0
 471         snd_printk("get_format: 0x%x (mode=0x%x)\n", format, mode);
 472 #endif
 473         return rformat;
 474 }
 475
 476 static void snd_cs4231_calibrate_mute(struct snd_cs4231 *chip, int mute)
 477 {
 478         unsigned long flags;
 479
 480         mute = mute ? 1 : 0;
 481         spin_lock_irqsave(&chip->reg_lock, flags);
 482         if (chip->calibrate_mute == mute) {
 483                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 484                 return;
 485         }
 486         if (!mute) {
 487                 snd_cs4231_dout(chip, CS4231_LEFT_INPUT, chip->image[CS4231_LEFT_INPUT]);
 488                 snd_cs4231_dout(chip, CS4231_RIGHT_INPUT, chip->image[CS4231_RIGHT_INPUT]);
 489                 snd_cs4231_dout(chip, CS4231_LOOPBACK, chip->image[CS4231_LOOPBACK]);
 490         }
 491         snd_cs4231_dout(chip, CS4231_AUX1_LEFT_INPUT, mute ? 0x80 : chip->image[CS4231_AUX1_LEFT_INPUT]);
 492         snd_cs4231_dout(chip, CS4231_AUX1_RIGHT_INPUT, mute ? 0x80 : chip->image[CS4231_AUX1_RIGHT_INPUT]);
 493         snd_cs4231_dout(chip, CS4231_AUX2_LEFT_INPUT, mute ? 0x80 : chip->image[CS4231_AUX2_LEFT_INPUT]);
 494         snd_cs4231_dout(chip, CS4231_AUX2_RIGHT_INPUT, mute ? 0x80 : chip->image[CS4231_AUX2_RIGHT_INPUT]);
 495         snd_cs4231_dout(chip, CS4231_LEFT_OUTPUT, mute ? 0x80 : chip->image[CS4231_LEFT_OUTPUT]);
 496         snd_cs4231_dout(chip, CS4231_RIGHT_OUTPUT, mute ? 0x80 : chip->image[CS4231_RIGHT_OUTPUT]);
 497         snd_cs4231_dout(chip, CS4231_LEFT_LINE_IN, mute ? 0x80 : chip->image[CS4231_LEFT_LINE_IN]);
 498         snd_cs4231_dout(chip, CS4231_RIGHT_LINE_IN, mute ? 0x80 : chip->image[CS4231_RIGHT_LINE_IN]);
 499         snd_cs4231_dout(chip, CS4231_MONO_CTRL, mute ? 0xc0 : chip->image[CS4231_MONO_CTRL]);
 500         if (chip->hardware == CS4231_HW_INTERWAVE) {
 501                 snd_cs4231_dout(chip, CS4231_LEFT_MIC_INPUT, mute ? 0x80 : chip->image[CS4231_LEFT_MIC_INPUT]);
 502                 snd_cs4231_dout(chip, CS4231_RIGHT_MIC_INPUT, mute ? 0x80 : chip->image[CS4231_RIGHT_MIC_INPUT]);
 503                 snd_cs4231_dout(chip, CS4231_LINE_LEFT_OUTPUT, mute ? 0x80 : chip->image[CS4231_LINE_LEFT_OUTPUT]);
 504                 snd_cs4231_dout(chip, CS4231_LINE_RIGHT_OUTPUT, mute ? 0x80 : chip->image[CS4231_LINE_RIGHT_OUTPUT]);
 505         }
 506         chip->calibrate_mute = mute;
 507         spin_unlock_irqrestore(&chip->reg_lock, flags);
 508 }
 509
 510 static void snd_cs4231_playback_format(struct snd_cs4231 *chip,
 511                                        struct snd_pcm_hw_params *params,
 512                                        unsigned char pdfr)
 513 {
 514         unsigned long flags;
 515         int full_calib = 1;
 516
 517         mutex_lock(&chip->mce_mutex);
 518         snd_cs4231_calibrate_mute(chip, 1);
 519         if (chip->hardware == CS4231_HW_CS4231A ||
 520             (chip->hardware & CS4231_HW_CS4232_MASK)) {
 521                 spin_lock_irqsave(&chip->reg_lock, flags);
 522                 if ((chip->image[CS4231_PLAYBK_FORMAT] & 0x0f) == (pdfr & 0x0f)) {      /* rate is same? */
 523                         snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, chip->image[CS4231_ALT_FEATURE_1] | 0x10);
 524                         snd_cs4231_out(chip, CS4231_PLAYBK_FORMAT, chip->image[CS4231_PLAYBK_FORMAT] = pdfr);
 525                         snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, chip->image[CS4231_ALT_FEATURE_1] &= ~0x10);
 526                         udelay(100); /* Fixes audible clicks at least on GUS MAX */
 527                         full_calib = 0;
 528                 }
 529                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 530         }
 531         if (full_calib) {
 532                 snd_cs4231_mce_up(chip);
 533                 spin_lock_irqsave(&chip->reg_lock, flags);
 534                 if (chip->hardware != CS4231_HW_INTERWAVE && !chip->single_dma) {
 535                         snd_cs4231_out(chip, CS4231_PLAYBK_FORMAT,
 536                                         (chip->image[CS4231_IFACE_CTRL] & CS4231_RECORD_ENABLE) ?
 537                                         (pdfr & 0xf0) | (chip->image[CS4231_REC_FORMAT] & 0x0f) :
 538                                         pdfr);
 539                 } else {
 540                         snd_cs4231_out(chip, CS4231_PLAYBK_FORMAT, chip->image[CS4231_PLAYBK_FORMAT] = pdfr);
 541                 }
 542                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 543                 if (chip->hardware == CS4231_HW_OPL3SA2)
 544                         udelay(100);    /* this seems to help */
 545                 snd_cs4231_mce_down(chip);
 546         }
 547         snd_cs4231_calibrate_mute(chip, 0);
 548         mutex_unlock(&chip->mce_mutex);
 549 }
 550
 551 static void snd_cs4231_capture_format(struct snd_cs4231 *chip,
 552                                       struct snd_pcm_hw_params *params,
 553                                       unsigned char cdfr)
 554 {
 555         unsigned long flags;
 556         int full_calib = 1;
 557
 558         mutex_lock(&chip->mce_mutex);
 559         snd_cs4231_calibrate_mute(chip, 1);
 560         if (chip->hardware == CS4231_HW_CS4231A ||
 561             (chip->hardware & CS4231_HW_CS4232_MASK)) {
 562                 spin_lock_irqsave(&chip->reg_lock, flags);
 563                 if ((chip->image[CS4231_PLAYBK_FORMAT] & 0x0f) == (cdfr & 0x0f) ||      /* rate is same? */
 564                     (chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE)) {
 565                         snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, chip->image[CS4231_ALT_FEATURE_1] | 0x20);
 566                         snd_cs4231_out(chip, CS4231_REC_FORMAT, chip->image[CS4231_REC_FORMAT] = cdfr);
 567                         snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, chip->image[CS4231_ALT_FEATURE_1] &= ~0x20);
 568                         full_calib = 0;
 569                 }
 570                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 571         }
 572         if (full_calib) {
 573                 snd_cs4231_mce_up(chip);
 574                 spin_lock_irqsave(&chip->reg_lock, flags);
 575                 if (chip->hardware != CS4231_HW_INTERWAVE) {
 576                         if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE)) {
 577                                 snd_cs4231_out(chip, CS4231_PLAYBK_FORMAT,
 578                                                ((chip->single_dma ? cdfr : chip->image[CS4231_PLAYBK_FORMAT]) & 0xf0) |
 579                                                (cdfr & 0x0f));
 580                                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 581                                 snd_cs4231_mce_down(chip);
 582                                 snd_cs4231_mce_up(chip);
 583                                 spin_lock_irqsave(&chip->reg_lock, flags);
 584                         }
 585                 }
 586                 snd_cs4231_out(chip, CS4231_REC_FORMAT, cdfr);
 587                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 588                 snd_cs4231_mce_down(chip);
 589         }
 590         snd_cs4231_calibrate_mute(chip, 0);
 591         mutex_unlock(&chip->mce_mutex);
 592 }
 593
 594 /*
 595  *  Timer interface
 596  */
 597
 598 static unsigned long snd_cs4231_timer_resolution(struct snd_timer * timer)
 599 {
 600         struct snd_cs4231 *chip = snd_timer_chip(timer);
 601         if (chip->hardware & CS4231_HW_CS4236B_MASK)
 602                 return 14467;
 603         else
 604                 return chip->image[CS4231_PLAYBK_FORMAT] & 1 ? 9969 : 9920;
 605 }
 606
 607 static int snd_cs4231_timer_start(struct snd_timer * timer)
 608 {
 609         unsigned long flags;
 610         unsigned int ticks;
 611         struct snd_cs4231 *chip = snd_timer_chip(timer);
 612         spin_lock_irqsave(&chip->reg_lock, flags);
 613         ticks = timer->sticks;
 614         if ((chip->image[CS4231_ALT_FEATURE_1] & CS4231_TIMER_ENABLE) == 0 ||
 615             (unsigned char)(ticks >> 8) != chip->image[CS4231_TIMER_HIGH] ||
 616             (unsigned char)ticks != chip->image[CS4231_TIMER_LOW]) {
 617                 snd_cs4231_out(chip, CS4231_TIMER_HIGH, chip->image[CS4231_TIMER_HIGH] = (unsigned char) (ticks >> 8));
 618                 snd_cs4231_out(chip, CS4231_TIMER_LOW, chip->image[CS4231_TIMER_LOW] = (unsigned char) ticks);
 619                 snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, chip->image[CS4231_ALT_FEATURE_1] | CS4231_TIMER_ENABLE);
 620         }
 621         spin_unlock_irqrestore(&chip->reg_lock, flags);
 622         return 0;
 623 }
 624
 625 static int snd_cs4231_timer_stop(struct snd_timer * timer)
 626 {
 627         unsigned long flags;
 628         struct snd_cs4231 *chip = snd_timer_chip(timer);
 629         spin_lock_irqsave(&chip->reg_lock, flags);
 630         snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, chip->image[CS4231_ALT_FEATURE_1] &= ~CS4231_TIMER_ENABLE);
 631         spin_unlock_irqrestore(&chip->reg_lock, flags);
 632         return 0;
 633 }
 634
 635 static void snd_cs4231_init(struct snd_cs4231 *chip)
 636 {
 637         unsigned long flags;
 638
 639         snd_cs4231_mce_down(chip);
 640
 641 #ifdef SNDRV_DEBUG_MCE
 642         snd_printk("init: (1)\n");
 643 #endif
 644         snd_cs4231_mce_up(chip);
 645         spin_lock_irqsave(&chip->reg_lock, flags);
 646         chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO |
 647                              CS4231_RECORD_ENABLE | CS4231_RECORD_PIO |
 648                              CS4231_CALIB_MODE);
 649         chip->image[CS4231_IFACE_CTRL] |= CS4231_AUTOCALIB;
 650         snd_cs4231_out(chip, CS4231_IFACE_CTRL, chip->image[CS4231_IFACE_CTRL]);
 651         spin_unlock_irqrestore(&chip->reg_lock, flags);
 652         snd_cs4231_mce_down(chip);
 653
 654 #ifdef SNDRV_DEBUG_MCE
 655         snd_printk("init: (2)\n");
 656 #endif
 657
 658         snd_cs4231_mce_up(chip);
 659         spin_lock_irqsave(&chip->reg_lock, flags);
 660         snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, chip->image[CS4231_ALT_FEATURE_1]);
 661         spin_unlock_irqrestore(&chip->reg_lock, flags);
 662         snd_cs4231_mce_down(chip);
 663
 664 #ifdef SNDRV_DEBUG_MCE
 665         snd_printk("init: (3) - afei = 0x%x\n", chip->image[CS4231_ALT_FEATURE_1]);
 666 #endif
 667
 668         spin_lock_irqsave(&chip->reg_lock, flags);
 669         snd_cs4231_out(chip, CS4231_ALT_FEATURE_2, chip->image[CS4231_ALT_FEATURE_2]);
 670         spin_unlock_irqrestore(&chip->reg_lock, flags);
 671
 672         snd_cs4231_mce_up(chip);
 673         spin_lock_irqsave(&chip->reg_lock, flags);
 674         snd_cs4231_out(chip, CS4231_PLAYBK_FORMAT, chip->image[CS4231_PLAYBK_FORMAT]);
 675         spin_unlock_irqrestore(&chip->reg_lock, flags);
 676         snd_cs4231_mce_down(chip);
 677
 678 #ifdef SNDRV_DEBUG_MCE
 679         snd_printk("init: (4)\n");
 680 #endif
 681
 682         snd_cs4231_mce_up(chip);
 683         spin_lock_irqsave(&chip->reg_lock, flags);
 684         snd_cs4231_out(chip, CS4231_REC_FORMAT, chip->image[CS4231_REC_FORMAT]);
 685         spin_unlock_irqrestore(&chip->reg_lock, flags);
 686         snd_cs4231_mce_down(chip);
 687
 688 #ifdef SNDRV_DEBUG_MCE
 689         snd_printk("init: (5)\n");
 690 #endif
 691 }
 692
 693 static int snd_cs4231_open(struct snd_cs4231 *chip, unsigned int mode)
 694 {
 695         unsigned long flags;
 696
 697         mutex_lock(&chip->open_mutex);
 698         if ((chip->mode & mode) ||
 699             ((chip->mode & CS4231_MODE_OPEN) && chip->single_dma)) {
 700                 mutex_unlock(&chip->open_mutex);
 701                 return -EAGAIN;
 702         }
 703         if (chip->mode & CS4231_MODE_OPEN) {
 704                 chip->mode |= mode;
 705                 mutex_unlock(&chip->open_mutex);
 706                 return 0;
 707         }
 708         /* ok. now enable and ack CODEC IRQ */
 709         spin_lock_irqsave(&chip->reg_lock, flags);
 710         snd_cs4231_out(chip, CS4231_IRQ_STATUS, CS4231_PLAYBACK_IRQ |
 711                        CS4231_RECORD_IRQ |
 712                        CS4231_TIMER_IRQ);
 713         snd_cs4231_out(chip, CS4231_IRQ_STATUS, 0);
 714         cs4231_outb(chip, CS4231P(STATUS), 0);  /* clear IRQ */
 715         cs4231_outb(chip, CS4231P(STATUS), 0);  /* clear IRQ */
 716         chip->image[CS4231_PIN_CTRL] |= CS4231_IRQ_ENABLE;
 717         snd_cs4231_out(chip, CS4231_PIN_CTRL, chip->image[CS4231_PIN_CTRL]);
 718         snd_cs4231_out(chip, CS4231_IRQ_STATUS, CS4231_PLAYBACK_IRQ |
 719                        CS4231_RECORD_IRQ |
 720                        CS4231_TIMER_IRQ);
 721         snd_cs4231_out(chip, CS4231_IRQ_STATUS, 0);
 722         spin_unlock_irqrestore(&chip->reg_lock, flags);
 723
 724         chip->mode = mode;
 725         mutex_unlock(&chip->open_mutex);
 726         return 0;
 727 }
 728
 729 static void snd_cs4231_close(struct snd_cs4231 *chip, unsigned int mode)
 730 {
 731         unsigned long flags;
 732
 733         mutex_lock(&chip->open_mutex);
 734         chip->mode &= ~mode;
 735         if (chip->mode & CS4231_MODE_OPEN) {
 736                 mutex_unlock(&chip->open_mutex);
 737                 return;
 738         }
 739         snd_cs4231_calibrate_mute(chip, 1);
 740
 741         /* disable IRQ */
 742         spin_lock_irqsave(&chip->reg_lock, flags);
 743         snd_cs4231_out(chip, CS4231_IRQ_STATUS, 0);
 744         cs4231_outb(chip, CS4231P(STATUS), 0);  /* clear IRQ */
 745         cs4231_outb(chip, CS4231P(STATUS), 0);  /* clear IRQ */
 746         chip->image[CS4231_PIN_CTRL] &= ~CS4231_IRQ_ENABLE;
 747         snd_cs4231_out(chip, CS4231_PIN_CTRL, chip->image[CS4231_PIN_CTRL]);
 748
 749         /* now disable record & playback */
 750
 751         if (chip->image[CS4231_IFACE_CTRL] & (CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO |
 752                                                CS4231_RECORD_ENABLE | CS4231_RECORD_PIO)) {
 753                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 754                 snd_cs4231_mce_up(chip);
 755                 spin_lock_irqsave(&chip->reg_lock, flags);
 756                 chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO |
 757                                                      CS4231_RECORD_ENABLE | CS4231_RECORD_PIO);
 758                 snd_cs4231_out(chip, CS4231_IFACE_CTRL, chip->image[CS4231_IFACE_CTRL]);
 759                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 760                 snd_cs4231_mce_down(chip);
 761                 spin_lock_irqsave(&chip->reg_lock, flags);
 762         }
 763
 764         /* clear IRQ again */
 765         snd_cs4231_out(chip, CS4231_IRQ_STATUS, 0);
 766         cs4231_outb(chip, CS4231P(STATUS), 0);  /* clear IRQ */
 767         cs4231_outb(chip, CS4231P(STATUS), 0);  /* clear IRQ */
 768         spin_unlock_irqrestore(&chip->reg_lock, flags);
 769
 770         snd_cs4231_calibrate_mute(chip, 0);
 771
 772         chip->mode = 0;
 773         mutex_unlock(&chip->open_mutex);
 774 }
 775
 776 /*
 777  *  timer open/close
 778  */
 779
 780 static int snd_cs4231_timer_open(struct snd_timer * timer)
 781 {
 782         struct snd_cs4231 *chip = snd_timer_chip(timer);
 783         snd_cs4231_open(chip, CS4231_MODE_TIMER);
 784         return 0;
 785 }
 786
 787 static int snd_cs4231_timer_close(struct snd_timer * timer)
 788 {
 789         struct snd_cs4231 *chip = snd_timer_chip(timer);
 790         snd_cs4231_close(chip, CS4231_MODE_TIMER);
 791         return 0;
 792 }
 793
 794 static struct snd_timer_hardware snd_cs4231_timer_table =
 795 {
 796         .flags =        SNDRV_TIMER_HW_AUTO,
 797         .resolution =   9945,
 798         .ticks =        65535,
 799         .open =         snd_cs4231_timer_open,
 800         .close =        snd_cs4231_timer_close,
 801         .c_resolution = snd_cs4231_timer_resolution,
 802         .start =        snd_cs4231_timer_start,
 803         .stop =         snd_cs4231_timer_stop,
 804 };
 805
 806 /*
 807  *  ok.. exported functions..
 808  */
 809
 810 static int snd_cs4231_playback_hw_params(struct snd_pcm_substream *substream,
 811                                          struct snd_pcm_hw_params *hw_params)
 812 {
 813         struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
 814         unsigned char new_pdfr;
 815         int err;
 816
 817         if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
 818                 return err;
 819         new_pdfr = snd_cs4231_get_format(chip, params_format(hw_params), params_channels(hw_params)) |
 820                    snd_cs4231_get_rate(params_rate(hw_params));
 821         chip->set_playback_format(chip, hw_params, new_pdfr);
 822         return 0;
 823 }
 824
 825 static int snd_cs4231_playback_hw_free(struct snd_pcm_substream *substream)
 826 {
 827         return snd_pcm_lib_free_pages(substream);
 828 }
 829
 830 static int snd_cs4231_playback_prepare(struct snd_pcm_substream *substream)
 831 {
 832         struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
 833         struct snd_pcm_runtime *runtime = substream->runtime;
 834         unsigned long flags;
 835         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
 836         unsigned int count = snd_pcm_lib_period_bytes(substream);
 837
 838         spin_lock_irqsave(&chip->reg_lock, flags);
 839         chip->p_dma_size = size;
 840         chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO);
 841         snd_dma_program(chip->dma1, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT);
 842         count = snd_cs4231_get_count(chip->image[CS4231_PLAYBK_FORMAT], count) - 1;
 843         snd_cs4231_out(chip, CS4231_PLY_LWR_CNT, (unsigned char) count);
 844         snd_cs4231_out(chip, CS4231_PLY_UPR_CNT, (unsigned char) (count >> 8));
 845         spin_unlock_irqrestore(&chip->reg_lock, flags);
 846 #if 0
 847         snd_cs4231_debug(chip);
 848 #endif
 849         return 0;
 850 }
 851
 852 static int snd_cs4231_capture_hw_params(struct snd_pcm_substream *substream,
 853                                         struct snd_pcm_hw_params *hw_params)
 854 {
 855         struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
 856         unsigned char new_cdfr;
 857         int err;
 858
 859         if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
 860                 return err;
 861         new_cdfr = snd_cs4231_get_format(chip, params_format(hw_params), params_channels(hw_params)) |
 862                    snd_cs4231_get_rate(params_rate(hw_params));
 863         chip->set_capture_format(chip, hw_params, new_cdfr);
 864         return 0;
 865 }
 866
 867 static int snd_cs4231_capture_hw_free(struct snd_pcm_substream *substream)
 868 {
 869         return snd_pcm_lib_free_pages(substream);
 870 }
 871
 872 static int snd_cs4231_capture_prepare(struct snd_pcm_substream *substream)
 873 {
 874         struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
 875         struct snd_pcm_runtime *runtime = substream->runtime;
 876         unsigned long flags;
 877         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
 878         unsigned int count = snd_pcm_lib_period_bytes(substream);
 879
 880         spin_lock_irqsave(&chip->reg_lock, flags);
 881         chip->c_dma_size = size;
 882         chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_RECORD_ENABLE | CS4231_RECORD_PIO);
 883         snd_dma_program(chip->dma2, runtime->dma_addr, size, DMA_MODE_READ | DMA_AUTOINIT);
 884         count = snd_cs4231_get_count(chip->image[CS4231_REC_FORMAT], count) - 1;
 885         if (chip->single_dma && chip->hardware != CS4231_HW_INTERWAVE) {
 886                 snd_cs4231_out(chip, CS4231_PLY_LWR_CNT, (unsigned char) count);
 887                 snd_cs4231_out(chip, CS4231_PLY_UPR_CNT, (unsigned char) (count >> 8));
 888         } else {
 889                 snd_cs4231_out(chip, CS4231_REC_LWR_CNT, (unsigned char) count);
 890                 snd_cs4231_out(chip, CS4231_REC_UPR_CNT, (unsigned char) (count >> 8));
 891         }
 892         spin_unlock_irqrestore(&chip->reg_lock, flags);
 893         return 0;
 894 }
 895
 896 static void snd_cs4231_overrange(struct snd_cs4231 *chip)
 897 {
 898         unsigned long flags;
 899         unsigned char res;
 900
 901         spin_lock_irqsave(&chip->reg_lock, flags);
 902         res = snd_cs4231_in(chip, CS4231_TEST_INIT);
 903         spin_unlock_irqrestore(&chip->reg_lock, flags);
 904         if (res & (0x08 | 0x02))        /* detect overrange only above 0dB; may be user selectable? */
 905                 chip->capture_substream->runtime->overrange++;
 906 }
 907
 908 irqreturn_t snd_cs4231_interrupt(int irq, void *dev_id)
 909 {
 910         struct snd_cs4231 *chip = dev_id;
 911         unsigned char status;
 912
 913         status = snd_cs4231_in(chip, CS4231_IRQ_STATUS);
 914         if (status & CS4231_TIMER_IRQ) {
 915                 if (chip->timer)
 916                         snd_timer_interrupt(chip->timer, chip->timer->sticks);
 917         }
 918         if (chip->single_dma && chip->hardware != CS4231_HW_INTERWAVE) {
 919                 if (status & CS4231_PLAYBACK_IRQ) {
 920                         if (chip->mode & CS4231_MODE_PLAY) {
 921                                 if (chip->playback_substream)
 922                                         snd_pcm_period_elapsed(chip->playback_substream);
 923                         }
 924                         if (chip->mode & CS4231_MODE_RECORD) {
 925                                 if (chip->capture_substream) {
 926                                         snd_cs4231_overrange(chip);
 927                                         snd_pcm_period_elapsed(chip->capture_substream);
 928                                 }
 929                         }
 930                 }
 931         } else {
 932                 if (status & CS4231_PLAYBACK_IRQ) {
 933                         if (chip->playback_substream)
 934                                 snd_pcm_period_elapsed(chip->playback_substream);
 935                 }
 936                 if (status & CS4231_RECORD_IRQ) {
 937                         if (chip->capture_substream) {
 938                                 snd_cs4231_overrange(chip);
 939                                 snd_pcm_period_elapsed(chip->capture_substream);
 940                         }
 941                 }
 942         }
 943
 944         spin_lock(&chip->reg_lock);
 945         snd_cs4231_outm(chip, CS4231_IRQ_STATUS, ~CS4231_ALL_IRQS | ~status, 0);
 946         spin_unlock(&chip->reg_lock);
 947         return IRQ_HANDLED;
 948 }
 949
 950 static snd_pcm_uframes_t snd_cs4231_playback_pointer(struct snd_pcm_substream *substream)
 951 {
 952         struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
 953         size_t ptr;
 954
 955         if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE))
 956                 return 0;
 957         ptr = snd_dma_pointer(chip->dma1, chip->p_dma_size);
 958         return bytes_to_frames(substream->runtime, ptr);
 959 }
 960
 961 static snd_pcm_uframes_t snd_cs4231_capture_pointer(struct snd_pcm_substream *substream)
 962 {
 963         struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
 964         size_t ptr;
 965
 966         if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_RECORD_ENABLE))
 967                 return 0;
 968         ptr = snd_dma_pointer(chip->dma2, chip->c_dma_size);
 969         return bytes_to_frames(substream->runtime, ptr);
 970 }
 971
 972 /*
 973
 974  */
 975
 976 static int snd_cs4231_probe(struct snd_cs4231 *chip)
 977 {
 978         unsigned long flags;
 979         int i, id, rev;
 980         unsigned char *ptr;
 981         unsigned int hw;
 982
 983 #if 0
 984         snd_cs4231_debug(chip);
 985 #endif
 986         id = 0;
 987         for (i = 0; i < 50; i++) {
 988                 mb();
 989                 if (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT)
 990                         udelay(2000);
 991                 else {
 992                         spin_lock_irqsave(&chip->reg_lock, flags);
 993                         snd_cs4231_out(chip, CS4231_MISC_INFO, CS4231_MODE2);
 994                         id = snd_cs4231_in(chip, CS4231_MISC_INFO) & 0x0f;
 995                         spin_unlock_irqrestore(&chip->reg_lock, flags);
 996                         if (id == 0x0a)
 997                                 break;  /* this is valid value */
 998                 }
 999         }
1000         snd_printdd("cs4231: port = 0x%lx, id = 0x%x\n", chip->port, id);
1001         if (id != 0x0a)
1002                 return -ENODEV; /* no valid device found */
1003
1004         if (((hw = chip->hardware) & CS4231_HW_TYPE_MASK) == CS4231_HW_DETECT) {
1005                 rev = snd_cs4231_in(chip, CS4231_VERSION) & 0xe7;
1006                 snd_printdd("CS4231: VERSION (I25) = 0x%x\n", rev);
1007                 if (rev == 0x80) {
1008                         unsigned char tmp = snd_cs4231_in(chip, 23);
1009                         snd_cs4231_out(chip, 23, ~tmp);
1010                         if (snd_cs4231_in(chip, 23) != tmp)
1011                                 chip->hardware = CS4231_HW_AD1845;
1012                         else
1013                                 chip->hardware = CS4231_HW_CS4231;
1014                 } else if (rev == 0xa0) {
1015                         chip->hardware = CS4231_HW_CS4231A;
1016                 } else if (rev == 0xa2) {
1017                         chip->hardware = CS4231_HW_CS4232;
1018                 } else if (rev == 0xb2) {
1019                         chip->hardware = CS4231_HW_CS4232A;
1020                 } else if (rev == 0x83) {
1021                         chip->hardware = CS4231_HW_CS4236;
1022                 } else if (rev == 0x03) {
1023                         chip->hardware = CS4231_HW_CS4236B;
1024                 } else {
1025                         snd_printk("unknown CS chip with version 0x%x\n", rev);
1026                         return -ENODEV;         /* unknown CS4231 chip? */
1027                 }
1028         }
1029         spin_lock_irqsave(&chip->reg_lock, flags);
1030         cs4231_inb(chip, CS4231P(STATUS));      /* clear any pendings IRQ */
1031         cs4231_outb(chip, CS4231P(STATUS), 0);
1032         mb();
1033         spin_unlock_irqrestore(&chip->reg_lock, flags);
1034
1035         chip->image[CS4231_MISC_INFO] = CS4231_MODE2;
1036         switch (chip->hardware) {
1037         case CS4231_HW_INTERWAVE:
1038                 chip->image[CS4231_MISC_INFO] = CS4231_IW_MODE3;
1039                 break;
1040         case CS4231_HW_CS4235:
1041         case CS4231_HW_CS4236B:
1042         case CS4231_HW_CS4237B:
1043         case CS4231_HW_CS4238B:
1044         case CS4231_HW_CS4239:
1045                 if (hw == CS4231_HW_DETECT3)
1046                         chip->image[CS4231_MISC_INFO] = CS4231_4236_MODE3;
1047                 else
1048                         chip->hardware = CS4231_HW_CS4236;
1049                 break;
1050         }
1051
1052         chip->image[CS4231_IFACE_CTRL] =
1053             (chip->image[CS4231_IFACE_CTRL] & ~CS4231_SINGLE_DMA) |
1054             (chip->single_dma ? CS4231_SINGLE_DMA : 0);
1055         chip->image[CS4231_ALT_FEATURE_1] = 0x80;
1056         chip->image[CS4231_ALT_FEATURE_2] = chip->hardware == CS4231_HW_INTERWAVE ? 0xc2 : 0x01;
1057         ptr = (unsigned char *) &chip->image;
1058         snd_cs4231_mce_down(chip);
1059         spin_lock_irqsave(&chip->reg_lock, flags);
1060         for (i = 0; i < 32; i++)        /* ok.. fill all CS4231 registers */
1061                 snd_cs4231_out(chip, i, *ptr++);
1062         spin_unlock_irqrestore(&chip->reg_lock, flags);
1063         snd_cs4231_mce_up(chip);
1064         snd_cs4231_mce_down(chip);
1065
1066         mdelay(2);
1067
1068         /* ok.. try check hardware version for CS4236+ chips */
1069         if ((hw & CS4231_HW_TYPE_MASK) == CS4231_HW_DETECT) {
1070                 if (chip->hardware == CS4231_HW_CS4236B) {
1071                         rev = snd_cs4236_ext_in(chip, CS4236_VERSION);
1072                         snd_cs4236_ext_out(chip, CS4236_VERSION, 0xff);
1073                         id = snd_cs4236_ext_in(chip, CS4236_VERSION);
1074                         snd_cs4236_ext_out(chip, CS4236_VERSION, rev);
1075                         snd_printdd("CS4231: ext version; rev = 0x%x, id = 0x%x\n", rev, id);
1076                         if ((id & 0x1f) == 0x1d) {      /* CS4235 */
1077                                 chip->hardware = CS4231_HW_CS4235;
1078                                 switch (id >> 5) {
1079                                 case 4:
1080                                 case 5:
1081                                 case 6:
1082                                         break;
1083                                 default:
1084                                         snd_printk("unknown CS4235 chip (enhanced version = 0x%x)\n", id);
1085                                 }
1086                         } else if ((id & 0x1f) == 0x0b) {       /* CS4236/B */
1087                                 switch (id >> 5) {
1088                                 case 4:
1089                                 case 5:
1090                                 case 6:
1091                                 case 7:
1092                                         chip->hardware = CS4231_HW_CS4236B;
1093                                         break;
1094                                 default:
1095                                         snd_printk("unknown CS4236 chip (enhanced version = 0x%x)\n", id);
1096                                 }
1097                         } else if ((id & 0x1f) == 0x08) {       /* CS4237B */
1098                                 chip->hardware = CS4231_HW_CS4237B;
1099                                 switch (id >> 5) {
1100                                 case 4:
1101                                 case 5:
1102                                 case 6:
1103                                 case 7:
1104                                         break;
1105                                 default:
1106                                         snd_printk("unknown CS4237B chip (enhanced version = 0x%x)\n", id);
1107                                 }
1108                         } else if ((id & 0x1f) == 0x09) {       /* CS4238B */
1109                                 chip->hardware = CS4231_HW_CS4238B;
1110                                 switch (id >> 5) {
1111                                 case 5:
1112                                 case 6:
1113                                 case 7:
1114                                         break;
1115                                 default:
1116                                         snd_printk("unknown CS4238B chip (enhanced version = 0x%x)\n", id);
1117                                 }
1118                         } else if ((id & 0x1f) == 0x1e) {       /* CS4239 */
1119                                 chip->hardware = CS4231_HW_CS4239;
1120                                 switch (id >> 5) {
1121                                 case 4:
1122                                 case 5:
1123                                 case 6:
1124                                         break;
1125                                 default:
1126                                         snd_printk("unknown CS4239 chip (enhanced version = 0x%x)\n", id);
1127                                 }
1128                         } else {
1129                                 snd_printk("unknown CS4236/CS423xB chip (enhanced version = 0x%x)\n", id);
1130                         }
1131                 }
1132         }
1133         return 0;               /* all things are ok.. */
1134 }
1135
1136 /*
1137
1138  */
1139
1140 static struct snd_pcm_hardware snd_cs4231_playback =
1141 {
1142         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1143                                  SNDRV_PCM_INFO_MMAP_VALID |
1144                                  SNDRV_PCM_INFO_RESUME |
1145                                  SNDRV_PCM_INFO_SYNC_START),
1146         .formats =              (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW | SNDRV_PCM_FMTBIT_IMA_ADPCM |
1147                                  SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE),
1148         .rates =                SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
1149         .rate_min =             5510,
1150         .rate_max =             48000,
1151         .channels_min =         1,
1152         .channels_max =         2,
1153         .buffer_bytes_max =     (128*1024),
1154         .period_bytes_min =     64,
1155         .period_bytes_max =     (128*1024),
1156         .periods_min =          1,
1157         .periods_max =          1024,
1158         .fifo_size =            0,
1159 };
1160
1161 static struct snd_pcm_hardware snd_cs4231_capture =
1162 {
1163         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1164                                  SNDRV_PCM_INFO_MMAP_VALID |
1165                                  SNDRV_PCM_INFO_RESUME |
1166                                  SNDRV_PCM_INFO_SYNC_START),
1167         .formats =              (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW | SNDRV_PCM_FMTBIT_IMA_ADPCM |
1168                                  SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE),
1169         .rates =                SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
1170         .rate_min =             5510,
1171         .rate_max =             48000,
1172         .channels_min =         1,
1173         .channels_max =         2,
1174         .buffer_bytes_max =     (128*1024),
1175         .period_bytes_min =     64,
1176         .period_bytes_max =     (128*1024),
1177         .periods_min =          1,
1178         .periods_max =          1024,
1179         .fifo_size =            0,
1180 };
1181
1182 /*
1183
1184  */
1185
1186 static int snd_cs4231_playback_open(struct snd_pcm_substream *substream)
1187 {
1188         struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1189         struct snd_pcm_runtime *runtime = substream->runtime;
1190         int err;
1191
1192         runtime->hw = snd_cs4231_playback;
1193
1194         /* hardware bug in InterWave chipset */
1195         if (chip->hardware == CS4231_HW_INTERWAVE && chip->dma1 > 3)
1196                 runtime->hw.formats &= ~SNDRV_PCM_FMTBIT_MU_LAW;
1197
1198         /* hardware limitation of cheap chips */
1199         if (chip->hardware == CS4231_HW_CS4235 ||
1200             chip->hardware == CS4231_HW_CS4239)
1201                 runtime->hw.formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE;
1202
1203         snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.buffer_bytes_max);
1204         snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.period_bytes_max);
1205
1206         if (chip->claim_dma) {
1207                 if ((err = chip->claim_dma(chip, chip->dma_private_data, chip->dma1)) < 0)
1208                         return err;
1209         }
1210
1211         if ((err = snd_cs4231_open(chip, CS4231_MODE_PLAY)) < 0) {
1212                 if (chip->release_dma)
1213                         chip->release_dma(chip, chip->dma_private_data, chip->dma1);
1214                 snd_free_pages(runtime->dma_area, runtime->dma_bytes);
1215                 return err;
1216         }
1217         chip->playback_substream = substream;
1218         snd_pcm_set_sync(substream);
1219         chip->rate_constraint(runtime);
1220         return 0;
1221 }
1222
1223 static int snd_cs4231_capture_open(struct snd_pcm_substream *substream)
1224 {
1225         struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1226         struct snd_pcm_runtime *runtime = substream->runtime;
1227         int err;
1228
1229         runtime->hw = snd_cs4231_capture;
1230
1231         /* hardware limitation of cheap chips */
1232         if (chip->hardware == CS4231_HW_CS4235 ||
1233             chip->hardware == CS4231_HW_CS4239)
1234                 runtime->hw.formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE;
1235
1236         snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.buffer_bytes_max);
1237         snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.period_bytes_max);
1238
1239         if (chip->claim_dma) {
1240                 if ((err = chip->claim_dma(chip, chip->dma_private_data, chip->dma2)) < 0)
1241                         return err;
1242         }
1243
1244         if ((err = snd_cs4231_open(chip, CS4231_MODE_RECORD)) < 0) {
1245                 if (chip->release_dma)
1246                         chip->release_dma(chip, chip->dma_private_data, chip->dma2);
1247                 snd_free_pages(runtime->dma_area, runtime->dma_bytes);
1248                 return err;
1249         }
1250         chip->capture_substream = substream;
1251         snd_pcm_set_sync(substream);
1252         chip->rate_constraint(runtime);
1253         return 0;
1254 }
1255
1256 static int snd_cs4231_playback_close(struct snd_pcm_substream *substream)
1257 {
1258         struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1259
1260         chip->playback_substream = NULL;
1261         snd_cs4231_close(chip, CS4231_MODE_PLAY);
1262         return 0;
1263 }
1264
1265 static int snd_cs4231_capture_close(struct snd_pcm_substream *substream)
1266 {
1267         struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1268
1269         chip->capture_substream = NULL;
1270         snd_cs4231_close(chip, CS4231_MODE_RECORD);
1271         return 0;
1272 }
1273
1274 #ifdef CONFIG_PM
1275
1276 /* lowlevel suspend callback for CS4231 */
1277 static void snd_cs4231_suspend(struct snd_cs4231 *chip)
1278 {
1279         int reg;
1280         unsigned long flags;
1281
1282         snd_pcm_suspend_all(chip->pcm);
1283         spin_lock_irqsave(&chip->reg_lock, flags);
1284         for (reg = 0; reg < 32; reg++)
1285                 chip->image[reg] = snd_cs4231_in(chip, reg);
1286         spin_unlock_irqrestore(&chip->reg_lock, flags);
1287 }
1288
1289 /* lowlevel resume callback for CS4231 */
1290 static void snd_cs4231_resume(struct snd_cs4231 *chip)
1291 {
1292         int reg;
1293         unsigned long flags;
1294         /* int timeout; */
1295
1296         snd_cs4231_mce_up(chip);
1297         spin_lock_irqsave(&chip->reg_lock, flags);
1298         for (reg = 0; reg < 32; reg++) {
1299                 switch (reg) {
1300                 case CS4231_VERSION:
1301                         break;
1302                 default:
1303                         snd_cs4231_out(chip, reg, chip->image[reg]);
1304                         break;
1305                 }
1306         }
1307         spin_unlock_irqrestore(&chip->reg_lock, flags);
1308 #if 1
1309         snd_cs4231_mce_down(chip);
1310 #else
1311         /* The following is a workaround to avoid freeze after resume on TP600E.
1312            This is the first half of copy of snd_cs4231_mce_down(), but doesn't
1313            include rescheduling.  -- iwai
1314            */
1315         snd_cs4231_busy_wait(chip);
1316         spin_lock_irqsave(&chip->reg_lock, flags);
1317         chip->mce_bit &= ~CS4231_MCE;
1318         timeout = cs4231_inb(chip, CS4231P(REGSEL));
1319         cs4231_outb(chip, CS4231P(REGSEL), chip->mce_bit | (timeout & 0x1f));
1320         spin_unlock_irqrestore(&chip->reg_lock, flags);
1321         if (timeout == 0x80)
1322                 snd_printk("down [0x%lx]: serious init problem - codec still busy\n", chip->port);
1323         if ((timeout & CS4231_MCE) == 0 ||
1324             !(chip->hardware & (CS4231_HW_CS4231_MASK | CS4231_HW_CS4232_MASK))) {
1325                 return;
1326         }
1327         snd_cs4231_busy_wait(chip);
1328 #endif
1329 }
1330 #endif /* CONFIG_PM */
1331
1332 static int snd_cs4231_free(struct snd_cs4231 *chip)
1333 {
1334         release_and_free_resource(chip->res_port);
1335         release_and_free_resource(chip->res_cport);
1336         if (chip->irq >= 0) {
1337                 disable_irq(chip->irq);
1338                 if (!(chip->hwshare & CS4231_HWSHARE_IRQ))
1339                         free_irq(chip->irq, (void *) chip);
1340         }
1341         if (!(chip->hwshare & CS4231_HWSHARE_DMA1) && chip->dma1 >= 0) {
1342                 snd_dma_disable(chip->dma1);
1343                 free_dma(chip->dma1);
1344         }
1345         if (!(chip->hwshare & CS4231_HWSHARE_DMA2) && chip->dma2 >= 0 && chip->dma2 != chip->dma1) {
1346                 snd_dma_disable(chip->dma2);
1347                 free_dma(chip->dma2);
1348         }
1349         if (chip->timer)
1350                 snd_device_free(chip->card, chip->timer);
1351         kfree(chip);
1352         return 0;
1353 }
1354
1355 static int snd_cs4231_dev_free(struct snd_device *device)
1356 {
1357         struct snd_cs4231 *chip = device->device_data;
1358         return snd_cs4231_free(chip);
1359 }
1360
1361 const char *snd_cs4231_chip_id(struct snd_cs4231 *chip)
1362 {
1363         switch (chip->hardware) {
1364         case CS4231_HW_CS4231:  return "CS4231";
1365         case CS4231_HW_CS4231A: return "CS4231A";
1366         case CS4231_HW_CS4232:  return "CS4232";
1367         case CS4231_HW_CS4232A: return "CS4232A";
1368         case CS4231_HW_CS4235:  return "CS4235";
1369         case CS4231_HW_CS4236:  return "CS4236";
1370         case CS4231_HW_CS4236B: return "CS4236B";
1371         case CS4231_HW_CS4237B: return "CS4237B";
1372         case CS4231_HW_CS4238B: return "CS4238B";
1373         case CS4231_HW_CS4239:  return "CS4239";
1374         case CS4231_HW_INTERWAVE: return "AMD InterWave";
1375         case CS4231_HW_OPL3SA2: return chip->card->shortname;
1376         case CS4231_HW_AD1845: return "AD1845";
1377         default: return "???";
1378         }
1379 }
1380
1381 static int snd_cs4231_new(struct snd_card *card,
1382                           unsigned short hardware,
1383                           unsigned short hwshare,
1384                           struct snd_cs4231 ** rchip)
1385 {
1386         struct snd_cs4231 *chip;
1387
1388         *rchip = NULL;
1389         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1390         if (chip == NULL)
1391                 return -ENOMEM;
1392         chip->hardware = hardware;
1393         chip->hwshare = hwshare;
1394
1395         spin_lock_init(&chip->reg_lock);
1396         mutex_init(&chip->mce_mutex);
1397         mutex_init(&chip->open_mutex);
1398         chip->card = card;
1399         chip->rate_constraint = snd_cs4231_xrate;
1400         chip->set_playback_format = snd_cs4231_playback_format;
1401         chip->set_capture_format = snd_cs4231_capture_format;
1402         memcpy(&chip->image, &snd_cs4231_original_image, sizeof(snd_cs4231_original_image));
1403
1404         *rchip = chip;
1405         return 0;
1406 }
1407
1408 int snd_cs4231_create(struct snd_card *card,
1409                       unsigned long port,
1410                       unsigned long cport,
1411                       int irq, int dma1, int dma2,
1412                       unsigned short hardware,
1413                       unsigned short hwshare,
1414                       struct snd_cs4231 ** rchip)
1415 {
1416         static struct snd_device_ops ops = {
1417                 .dev_free =     snd_cs4231_dev_free,
1418         };
1419         struct snd_cs4231 *chip;
1420         int err;
1421
1422         err = snd_cs4231_new(card, hardware, hwshare, &chip);
1423         if (err < 0)
1424                 return err;
1425
1426         chip->irq = -1;
1427         chip->dma1 = -1;
1428         chip->dma2 = -1;
1429
1430         if ((chip->res_port = request_region(port, 4, "CS4231")) == NULL) {
1431                 snd_printk(KERN_ERR "cs4231: can't grab port 0x%lx\n", port);
1432                 snd_cs4231_free(chip);
1433                 return -EBUSY;
1434         }
1435         chip->port = port;
1436         if ((long)cport >= 0 && (chip->res_cport = request_region(cport, 8, "CS4232 Control")) == NULL) {
1437                 snd_printk(KERN_ERR "cs4231: can't grab control port 0x%lx\n", cport);
1438                 snd_cs4231_free(chip);
1439                 return -ENODEV;
1440         }
1441         chip->cport = cport;
1442         if (!(hwshare & CS4231_HWSHARE_IRQ) && request_irq(irq, snd_cs4231_interrupt, IRQF_DISABLED, "CS4231", (void *) chip)) {
1443                 snd_printk(KERN_ERR "cs4231: can't grab IRQ %d\n", irq);
1444                 snd_cs4231_free(chip);
1445                 return -EBUSY;
1446         }
1447         chip->irq = irq;
1448         if (!(hwshare & CS4231_HWSHARE_DMA1) && request_dma(dma1, "CS4231 - 1")) {
1449                 snd_printk(KERN_ERR "cs4231: can't grab DMA1 %d\n", dma1);
1450                 snd_cs4231_free(chip);
1451                 return -EBUSY;
1452         }
1453         chip->dma1 = dma1;
1454         if (!(hwshare & CS4231_HWSHARE_DMA2) && dma1 != dma2 && dma2 >= 0 && request_dma(dma2, "CS4231 - 2")) {
1455                 snd_printk(KERN_ERR "cs4231: can't grab DMA2 %d\n", dma2);
1456                 snd_cs4231_free(chip);
1457                 return -EBUSY;
1458         }
1459         if (dma1 == dma2 || dma2 < 0) {
1460                 chip->single_dma = 1;
1461                 chip->dma2 = chip->dma1;
1462         } else
1463                 chip->dma2 = dma2;
1464
1465         /* global setup */
1466         if (snd_cs4231_probe(chip) < 0) {
1467                 snd_cs4231_free(chip);
1468                 return -ENODEV;
1469         }
1470         snd_cs4231_init(chip);
1471
1472 #if 0
1473         if (chip->hardware & CS4231_HW_CS4232_MASK) {
1474                 if (chip->res_cport == NULL)
1475                         snd_printk("CS4232 control port features are not accessible\n");
1476         }
1477 #endif
1478
1479         /* Register device */
1480         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
1481                 snd_cs4231_free(chip);
1482                 return err;
1483         }
1484
1485 #ifdef CONFIG_PM
1486         /* Power Management */
1487         chip->suspend = snd_cs4231_suspend;
1488         chip->resume = snd_cs4231_resume;
1489 #endif
1490
1491         *rchip = chip;
1492         return 0;
1493 }
1494
1495 static struct snd_pcm_ops snd_cs4231_playback_ops = {
1496         .open =         snd_cs4231_playback_open,
1497         .close =        snd_cs4231_playback_close,
1498         .ioctl =        snd_pcm_lib_ioctl,
1499         .hw_params =    snd_cs4231_playback_hw_params,
1500         .hw_free =      snd_cs4231_playback_hw_free,
1501         .prepare =      snd_cs4231_playback_prepare,
1502         .trigger =      snd_cs4231_trigger,
1503         .pointer =      snd_cs4231_playback_pointer,
1504 };
1505
1506 static struct snd_pcm_ops snd_cs4231_capture_ops = {
1507         .open =         snd_cs4231_capture_open,
1508         .close =        snd_cs4231_capture_close,
1509         .ioctl =        snd_pcm_lib_ioctl,
1510         .hw_params =    snd_cs4231_capture_hw_params,
1511         .hw_free =      snd_cs4231_capture_hw_free,
1512         .prepare =      snd_cs4231_capture_prepare,
1513         .trigger =      snd_cs4231_trigger,
1514         .pointer =      snd_cs4231_capture_pointer,
1515 };
1516
1517 int snd_cs4231_pcm(struct snd_cs4231 *chip, int device, struct snd_pcm **rpcm)
1518 {
1519         struct snd_pcm *pcm;
1520         int err;
1521
1522         if ((err = snd_pcm_new(chip->card, "CS4231", device, 1, 1, &pcm)) < 0)
1523                 return err;
1524
1525         spin_lock_init(&chip->reg_lock);
1526         mutex_init(&chip->mce_mutex);
1527         mutex_init(&chip->open_mutex);
1528
1529         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs4231_playback_ops);
1530         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_cs4231_capture_ops);
1531
1532         /* global setup */
1533         pcm->private_data = chip;
1534         pcm->info_flags = 0;
1535         if (chip->single_dma)
1536                 pcm->info_flags |= SNDRV_PCM_INFO_HALF_DUPLEX;
1537         if (chip->hardware != CS4231_HW_INTERWAVE)
1538                 pcm->info_flags |= SNDRV_PCM_INFO_JOINT_DUPLEX;
1539         strcpy(pcm->name, snd_cs4231_chip_id(chip));
1540
1541         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1542                                               snd_dma_isa_data(),
1543                                               64*1024, chip->dma1 > 3 || chip->dma2 > 3 ? 128*1024 : 64*1024);
1544
1545         chip->pcm = pcm;
1546         if (rpcm)
1547                 *rpcm = pcm;
1548         return 0;
1549 }
1550
1551 static void snd_cs4231_timer_free(struct snd_timer *timer)
1552 {
1553         struct snd_cs4231 *chip = timer->private_data;
1554         chip->timer = NULL;
1555 }
1556
1557 int snd_cs4231_timer(struct snd_cs4231 *chip, int device, struct snd_timer **rtimer)
1558 {
1559         struct snd_timer *timer;
1560         struct snd_timer_id tid;
1561         int err;
1562
1563         /* Timer initialization */
1564         tid.dev_class = SNDRV_TIMER_CLASS_CARD;
1565         tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE;
1566         tid.card = chip->card->number;
1567         tid.device = device;
1568         tid.subdevice = 0;
1569         if ((err = snd_timer_new(chip->card, "CS4231", &tid, &timer)) < 0)
1570                 return err;
1571         strcpy(timer->name, snd_cs4231_chip_id(chip));
1572         timer->private_data = chip;
1573         timer->private_free = snd_cs4231_timer_free;
1574         timer->hw = snd_cs4231_timer_table;
1575         chip->timer = timer;
1576         if (rtimer)
1577                 *rtimer = timer;
1578         return 0;
1579 }
1580
1581 /*
1582  *  MIXER part
1583  */
1584
1585 static int snd_cs4231_info_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1586 {
1587         static char *texts[4] = {
1588                 "Line", "Aux", "Mic", "Mix"
1589         };
1590         static char *opl3sa_texts[4] = {
1591                 "Line", "CD", "Mic", "Mix"
1592         };
1593         static char *gusmax_texts[4] = {
1594                 "Line", "Synth", "Mic", "Mix"
1595         };
1596         char **ptexts = texts;
1597         struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1598
1599         snd_assert(chip->card != NULL, return -EINVAL);
1600         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1601         uinfo->count = 2;
1602         uinfo->value.enumerated.items = 4;
1603         if (uinfo->value.enumerated.item > 3)
1604                 uinfo->value.enumerated.item = 3;
1605         if (!strcmp(chip->card->driver, "GUS MAX"))
1606                 ptexts = gusmax_texts;
1607         switch (chip->hardware) {
1608         case CS4231_HW_INTERWAVE: ptexts = gusmax_texts; break;
1609         case CS4231_HW_OPL3SA2: ptexts = opl3sa_texts; break;
1610         }
1611         strcpy(uinfo->value.enumerated.name, ptexts[uinfo->value.enumerated.item]);
1612         return 0;
1613 }
1614
1615 static int snd_cs4231_get_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1616 {
1617         struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1618         unsigned long flags;
1619
1620         spin_lock_irqsave(&chip->reg_lock, flags);
1621         ucontrol->value.enumerated.item[0] = (chip->image[CS4231_LEFT_INPUT] & CS4231_MIXS_ALL) >> 6;
1622         ucontrol->value.enumerated.item[1] = (chip->image[CS4231_RIGHT_INPUT] & CS4231_MIXS_ALL) >> 6;
1623         spin_unlock_irqrestore(&chip->reg_lock, flags);
1624         return 0;
1625 }
1626
1627 static int snd_cs4231_put_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1628 {
1629         struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1630         unsigned long flags;
1631         unsigned short left, right;
1632         int change;
1633
1634         if (ucontrol->value.enumerated.item[0] > 3 ||
1635             ucontrol->value.enumerated.item[1] > 3)
1636                 return -EINVAL;
1637         left = ucontrol->value.enumerated.item[0] << 6;
1638         right = ucontrol->value.enumerated.item[1] << 6;
1639         spin_lock_irqsave(&chip->reg_lock, flags);
1640         left = (chip->image[CS4231_LEFT_INPUT] & ~CS4231_MIXS_ALL) | left;
1641         right = (chip->image[CS4231_RIGHT_INPUT] & ~CS4231_MIXS_ALL) | right;
1642         change = left != chip->image[CS4231_LEFT_INPUT] ||
1643                  right != chip->image[CS4231_RIGHT_INPUT];
1644         snd_cs4231_out(chip, CS4231_LEFT_INPUT, left);
1645         snd_cs4231_out(chip, CS4231_RIGHT_INPUT, right);
1646         spin_unlock_irqrestore(&chip->reg_lock, flags);
1647         return change;
1648 }
1649
1650 int snd_cs4231_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1651 {
1652         int mask = (kcontrol->private_value >> 16) & 0xff;
1653
1654         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1655         uinfo->count = 1;
1656         uinfo->value.integer.min = 0;
1657         uinfo->value.integer.max = mask;
1658         return 0;
1659 }
1660
1661 int snd_cs4231_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1662 {
1663         struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1664         unsigned long flags;
1665         int reg = kcontrol->private_value & 0xff;
1666         int shift = (kcontrol->private_value >> 8) & 0xff;
1667         int mask = (kcontrol->private_value >> 16) & 0xff;
1668         int invert = (kcontrol->private_value >> 24) & 0xff;
1669
1670         spin_lock_irqsave(&chip->reg_lock, flags);
1671         ucontrol->value.integer.value[0] = (chip->image[reg] >> shift) & mask;
1672         spin_unlock_irqrestore(&chip->reg_lock, flags);
1673         if (invert)
1674                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
1675         return 0;
1676 }
1677
1678 int snd_cs4231_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1679 {
1680         struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1681         unsigned long flags;
1682         int reg = kcontrol->private_value & 0xff;
1683         int shift = (kcontrol->private_value >> 8) & 0xff;
1684         int mask = (kcontrol->private_value >> 16) & 0xff;
1685         int invert = (kcontrol->private_value >> 24) & 0xff;
1686         int change;
1687         unsigned short val;
1688
1689         val = (ucontrol->value.integer.value[0] & mask);
1690         if (invert)
1691                 val = mask - val;
1692         val <<= shift;
1693         spin_lock_irqsave(&chip->reg_lock, flags);
1694         val = (chip->image[reg] & ~(mask << shift)) | val;
1695         change = val != chip->image[reg];
1696         snd_cs4231_out(chip, reg, val);
1697         spin_unlock_irqrestore(&chip->reg_lock, flags);
1698         return change;
1699 }
1700
1701 int snd_cs4231_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1702 {
1703         int mask = (kcontrol->private_value >> 24) & 0xff;
1704
1705         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1706         uinfo->count = 2;
1707         uinfo->value.integer.min = 0;
1708         uinfo->value.integer.max = mask;
1709         return 0;
1710 }
1711
1712 int snd_cs4231_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1713 {
1714         struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1715         unsigned long flags;
1716         int left_reg = kcontrol->private_value & 0xff;
1717         int right_reg = (kcontrol->private_value >> 8) & 0xff;
1718         int shift_left = (kcontrol->private_value >> 16) & 0x07;
1719         int shift_right = (kcontrol->private_value >> 19) & 0x07;
1720         int mask = (kcontrol->private_value >> 24) & 0xff;
1721         int invert = (kcontrol->private_value >> 22) & 1;
1722
1723         spin_lock_irqsave(&chip->reg_lock, flags);
1724         ucontrol->value.integer.value[0] = (chip->image[left_reg] >> shift_left) & mask;
1725         ucontrol->value.integer.value[1] = (chip->image[right_reg] >> shift_right) & mask;
1726         spin_unlock_irqrestore(&chip->reg_lock, flags);
1727         if (invert) {
1728                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
1729                 ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
1730         }
1731         return 0;
1732 }
1733
1734 int snd_cs4231_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1735 {
1736         struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1737         unsigned long flags;
1738         int left_reg = kcontrol->private_value & 0xff;
1739         int right_reg = (kcontrol->private_value >> 8) & 0xff;
1740         int shift_left = (kcontrol->private_value >> 16) & 0x07;
1741         int shift_right = (kcontrol->private_value >> 19) & 0x07;
1742         int mask = (kcontrol->private_value >> 24) & 0xff;
1743         int invert = (kcontrol->private_value >> 22) & 1;
1744         int change;
1745         unsigned short val1, val2;
1746
1747         val1 = ucontrol->value.integer.value[0] & mask;
1748         val2 = ucontrol->value.integer.value[1] & mask;
1749         if (invert) {
1750                 val1 = mask - val1;
1751                 val2 = mask - val2;
1752         }
1753         val1 <<= shift_left;
1754         val2 <<= shift_right;
1755         spin_lock_irqsave(&chip->reg_lock, flags);
1756         val1 = (chip->image[left_reg] & ~(mask << shift_left)) | val1;
1757         val2 = (chip->image[right_reg] & ~(mask << shift_right)) | val2;
1758         change = val1 != chip->image[left_reg] || val2 != chip->image[right_reg];
1759         snd_cs4231_out(chip, left_reg, val1);
1760         snd_cs4231_out(chip, right_reg, val2);
1761         spin_unlock_irqrestore(&chip->reg_lock, flags);
1762         return change;
1763 }
1764
1765 static struct snd_kcontrol_new snd_cs4231_controls[] = {
1766 CS4231_DOUBLE("PCM Playback Switch", 0, CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 7, 7, 1, 1),
1767 CS4231_DOUBLE("PCM Playback Volume", 0, CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 0, 0, 63, 1),
1768 CS4231_DOUBLE("Line Playback Switch", 0, CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 7, 7, 1, 1),
1769 CS4231_DOUBLE("Line Playback Volume", 0, CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 0, 0, 31, 1),
1770 CS4231_DOUBLE("Aux Playback Switch", 0, CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 7, 7, 1, 1),
1771 CS4231_DOUBLE("Aux Playback Volume", 0, CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 0, 0, 31, 1),
1772 CS4231_DOUBLE("Aux Playback Switch", 1, CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 7, 7, 1, 1),
1773 CS4231_DOUBLE("Aux Playback Volume", 1, CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 0, 0, 31, 1),
1774 CS4231_SINGLE("Mono Playback Switch", 0, CS4231_MONO_CTRL, 7, 1, 1),
1775 CS4231_SINGLE("Mono Playback Volume", 0, CS4231_MONO_CTRL, 0, 15, 1),
1776 CS4231_SINGLE("Mono Output Playback Switch", 0, CS4231_MONO_CTRL, 6, 1, 1),
1777 CS4231_SINGLE("Mono Output Playback Bypass", 0, CS4231_MONO_CTRL, 5, 1, 0),
1778 CS4231_DOUBLE("Capture Volume", 0, CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 0, 0, 15, 0),
1779 {
1780         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1781         .name = "Capture Source",
1782         .info = snd_cs4231_info_mux,
1783         .get = snd_cs4231_get_mux,
1784         .put = snd_cs4231_put_mux,
1785 },
1786 CS4231_DOUBLE("Mic Boost", 0, CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 5, 5, 1, 0),
1787 CS4231_SINGLE("Loopback Capture Switch", 0, CS4231_LOOPBACK, 0, 1, 0),
1788 CS4231_SINGLE("Loopback Capture Volume", 0, CS4231_LOOPBACK, 2, 63, 1)
1789 };
1790
1791 int snd_cs4231_mixer(struct snd_cs4231 *chip)
1792 {
1793         struct snd_card *card;
1794         unsigned int idx;
1795         int err;
1796
1797         snd_assert(chip != NULL && chip->pcm != NULL, return -EINVAL);
1798
1799         card = chip->card;
1800
1801         strcpy(card->mixername, chip->pcm->name);
1802
1803         for (idx = 0; idx < ARRAY_SIZE(snd_cs4231_controls); idx++) {
1804                 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_cs4231_controls[idx], chip))) < 0)
1805                         return err;
1806         }
1807         return 0;
1808 }
1809
1810 EXPORT_SYMBOL(snd_cs4231_out);
1811 EXPORT_SYMBOL(snd_cs4231_in);
1812 EXPORT_SYMBOL(snd_cs4236_ext_out);
1813 EXPORT_SYMBOL(snd_cs4236_ext_in);
1814 EXPORT_SYMBOL(snd_cs4231_mce_up);
1815 EXPORT_SYMBOL(snd_cs4231_mce_down);
1816 EXPORT_SYMBOL(snd_cs4231_interrupt);
1817 EXPORT_SYMBOL(snd_cs4231_chip_id);
1818 EXPORT_SYMBOL(snd_cs4231_create);
1819 EXPORT_SYMBOL(snd_cs4231_pcm);
1820 EXPORT_SYMBOL(snd_cs4231_mixer);
1821 EXPORT_SYMBOL(snd_cs4231_timer);
1822 EXPORT_SYMBOL(snd_cs4231_info_single);
1823 EXPORT_SYMBOL(snd_cs4231_get_single);
1824 EXPORT_SYMBOL(snd_cs4231_put_single);
1825 EXPORT_SYMBOL(snd_cs4231_info_double);
1826 EXPORT_SYMBOL(snd_cs4231_get_double);
1827 EXPORT_SYMBOL(snd_cs4231_put_double);
1828
1829 /*
1830  *  INIT part
1831  */
1832
1833 static int __init alsa_cs4231_init(void)
1834 {
1835         return 0;
1836 }
1837
1838 static void __exit alsa_cs4231_exit(void)
1839 {
1840 }
1841
1842 module_init(alsa_cs4231_init)
1843 module_exit(alsa_cs4231_exit)