sound/isa/wss/wss_lib.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
   4  *  Routines for control of CS4231(A)/CS4232/InterWave & compatible chips
   5  *
   6  *  Bugs:
   7  *     - sometimes record brokes playback with WSS portion of
   8  *       Yamaha OPL3-SA3 chip
   9  *     - CS4231 (GUS MAX) - still trouble with occasional noises
  10  *                        - broken initialization?
  11  */
  12
  13 #include <linux/delay.h>
  14 #include <linux/pm.h>
  15 #include <linux/init.h>
  16 #include <linux/interrupt.h>
  17 #include <linux/slab.h>
  18 #include <linux/ioport.h>
  19 #include <linux/module.h>
  20 #include <linux/io.h>
  21 #include <sound/core.h>
  22 #include <sound/wss.h>
  23 #include <sound/pcm_params.h>
  24 #include <sound/tlv.h>
  25
  26 #include <asm/dma.h>
  27 #include <asm/irq.h>
  28
  29 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
  30 MODULE_DESCRIPTION("Routines for control of CS4231(A)/CS4232/InterWave & compatible chips");
  31 MODULE_LICENSE("GPL");
  32
  33 #if 0
  34 #define SNDRV_DEBUG_MCE
  35 #endif
  36
  37 /*
  38  *  Some variables
  39  */
  40
  41 static unsigned char freq_bits[14] = {
  42         /* 5510 */      0x00 | CS4231_XTAL2,
  43         /* 6620 */      0x0E | CS4231_XTAL2,
  44         /* 8000 */      0x00 | CS4231_XTAL1,
  45         /* 9600 */      0x0E | CS4231_XTAL1,
  46         /* 11025 */     0x02 | CS4231_XTAL2,
  47         /* 16000 */     0x02 | CS4231_XTAL1,
  48         /* 18900 */     0x04 | CS4231_XTAL2,
  49         /* 22050 */     0x06 | CS4231_XTAL2,
  50         /* 27042 */     0x04 | CS4231_XTAL1,
  51         /* 32000 */     0x06 | CS4231_XTAL1,
  52         /* 33075 */     0x0C | CS4231_XTAL2,
  53         /* 37800 */     0x08 | CS4231_XTAL2,
  54         /* 44100 */     0x0A | CS4231_XTAL2,
  55         /* 48000 */     0x0C | CS4231_XTAL1
  56 };
  57
  58 static const unsigned int rates[14] = {
  59         5510, 6620, 8000, 9600, 11025, 16000, 18900, 22050,
  60         27042, 32000, 33075, 37800, 44100, 48000
  61 };
  62
  63 static const struct snd_pcm_hw_constraint_list hw_constraints_rates = {
  64         .count = ARRAY_SIZE(rates),
  65         .list = rates,
  66         .mask = 0,
  67 };
  68
  69 static int snd_wss_xrate(struct snd_pcm_runtime *runtime)
  70 {
  71         return snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
  72                                           &hw_constraints_rates);
  73 }
  74
  75 static unsigned char snd_wss_original_image[32] =
  76 {
  77         0x00,                   /* 00/00 - lic */
  78         0x00,                   /* 01/01 - ric */
  79         0x9f,                   /* 02/02 - la1ic */
  80         0x9f,                   /* 03/03 - ra1ic */
  81         0x9f,                   /* 04/04 - la2ic */
  82         0x9f,                   /* 05/05 - ra2ic */
  83         0xbf,                   /* 06/06 - loc */
  84         0xbf,                   /* 07/07 - roc */
  85         0x20,                   /* 08/08 - pdfr */
  86         CS4231_AUTOCALIB,       /* 09/09 - ic */
  87         0x00,                   /* 0a/10 - pc */
  88         0x00,                   /* 0b/11 - ti */
  89         CS4231_MODE2,           /* 0c/12 - mi */
  90         0xfc,                   /* 0d/13 - lbc */
  91         0x00,                   /* 0e/14 - pbru */
  92         0x00,                   /* 0f/15 - pbrl */
  93         0x80,                   /* 10/16 - afei */
  94         0x01,                   /* 11/17 - afeii */
  95         0x9f,                   /* 12/18 - llic */
  96         0x9f,                   /* 13/19 - rlic */
  97         0x00,                   /* 14/20 - tlb */
  98         0x00,                   /* 15/21 - thb */
  99         0x00,                   /* 16/22 - la3mic/reserved */
 100         0x00,                   /* 17/23 - ra3mic/reserved */
 101         0x00,                   /* 18/24 - afs */
 102         0x00,                   /* 19/25 - lamoc/version */
 103         0xcf,                   /* 1a/26 - mioc */
 104         0x00,                   /* 1b/27 - ramoc/reserved */
 105         0x20,                   /* 1c/28 - cdfr */
 106         0x00,                   /* 1d/29 - res4 */
 107         0x00,                   /* 1e/30 - cbru */
 108         0x00,                   /* 1f/31 - cbrl */
 109 };
 110
 111 static unsigned char snd_opti93x_original_image[32] =
 112 {
 113         0x00,           /* 00/00 - l_mixout_outctrl */
 114         0x00,           /* 01/01 - r_mixout_outctrl */
 115         0x88,           /* 02/02 - l_cd_inctrl */
 116         0x88,           /* 03/03 - r_cd_inctrl */
 117         0x88,           /* 04/04 - l_a1/fm_inctrl */
 118         0x88,           /* 05/05 - r_a1/fm_inctrl */
 119         0x80,           /* 06/06 - l_dac_inctrl */
 120         0x80,           /* 07/07 - r_dac_inctrl */
 121         0x00,           /* 08/08 - ply_dataform_reg */
 122         0x00,           /* 09/09 - if_conf */
 123         0x00,           /* 0a/10 - pin_ctrl */
 124         0x00,           /* 0b/11 - err_init_reg */
 125         0x0a,           /* 0c/12 - id_reg */
 126         0x00,           /* 0d/13 - reserved */
 127         0x00,           /* 0e/14 - ply_upcount_reg */
 128         0x00,           /* 0f/15 - ply_lowcount_reg */
 129         0x88,           /* 10/16 - reserved/l_a1_inctrl */
 130         0x88,           /* 11/17 - reserved/r_a1_inctrl */
 131         0x88,           /* 12/18 - l_line_inctrl */
 132         0x88,           /* 13/19 - r_line_inctrl */
 133         0x88,           /* 14/20 - l_mic_inctrl */
 134         0x88,           /* 15/21 - r_mic_inctrl */
 135         0x80,           /* 16/22 - l_out_outctrl */
 136         0x80,           /* 17/23 - r_out_outctrl */
 137         0x00,           /* 18/24 - reserved */
 138         0x00,           /* 19/25 - reserved */
 139         0x00,           /* 1a/26 - reserved */
 140         0x00,           /* 1b/27 - reserved */
 141         0x00,           /* 1c/28 - cap_dataform_reg */
 142         0x00,           /* 1d/29 - reserved */
 143         0x00,           /* 1e/30 - cap_upcount_reg */
 144         0x00            /* 1f/31 - cap_lowcount_reg */
 145 };
 146
 147 /*
 148  *  Basic I/O functions
 149  */
 150
 151 static inline void wss_outb(struct snd_wss *chip, u8 offset, u8 val)
 152 {
 153         outb(val, chip->port + offset);
 154 }
 155
 156 static inline u8 wss_inb(struct snd_wss *chip, u8 offset)
 157 {
 158         return inb(chip->port + offset);
 159 }
 160
 161 static void snd_wss_wait(struct snd_wss *chip)
 162 {
 163         int timeout;
 164
 165         for (timeout = 250;
 166              timeout > 0 && (wss_inb(chip, CS4231P(REGSEL)) & CS4231_INIT);
 167              timeout--)
 168                 udelay(100);
 169 }
 170
 171 static void snd_wss_dout(struct snd_wss *chip, unsigned char reg,
 172                          unsigned char value)
 173 {
 174         int timeout;
 175
 176         for (timeout = 250;
 177              timeout > 0 && (wss_inb(chip, CS4231P(REGSEL)) & CS4231_INIT);
 178              timeout--)
 179                 udelay(10);
 180         wss_outb(chip, CS4231P(REGSEL), chip->mce_bit | reg);
 181         wss_outb(chip, CS4231P(REG), value);
 182         mb();
 183 }
 184
 185 void snd_wss_out(struct snd_wss *chip, unsigned char reg, unsigned char value)
 186 {
 187         snd_wss_wait(chip);
 188 #ifdef CONFIG_SND_DEBUG
 189         if (wss_inb(chip, CS4231P(REGSEL)) & CS4231_INIT)
 190                 snd_printk(KERN_DEBUG "out: auto calibration time out "
 191                            "- reg = 0x%x, value = 0x%x\n", reg, value);
 192 #endif
 193         wss_outb(chip, CS4231P(REGSEL), chip->mce_bit | reg);
 194         wss_outb(chip, CS4231P(REG), value);
 195         chip->image[reg] = value;
 196         mb();
 197         snd_printdd("codec out - reg 0x%x = 0x%x\n",
 198                         chip->mce_bit | reg, value);
 199 }
 200 EXPORT_SYMBOL(snd_wss_out);
 201
 202 unsigned char snd_wss_in(struct snd_wss *chip, unsigned char reg)
 203 {
 204         snd_wss_wait(chip);
 205 #ifdef CONFIG_SND_DEBUG
 206         if (wss_inb(chip, CS4231P(REGSEL)) & CS4231_INIT)
 207                 snd_printk(KERN_DEBUG "in: auto calibration time out "
 208                            "- reg = 0x%x\n", reg);
 209 #endif
 210         wss_outb(chip, CS4231P(REGSEL), chip->mce_bit | reg);
 211         mb();
 212         return wss_inb(chip, CS4231P(REG));
 213 }
 214 EXPORT_SYMBOL(snd_wss_in);
 215
 216 void snd_cs4236_ext_out(struct snd_wss *chip, unsigned char reg,
 217                         unsigned char val)
 218 {
 219         wss_outb(chip, CS4231P(REGSEL), chip->mce_bit | 0x17);
 220         wss_outb(chip, CS4231P(REG),
 221                  reg | (chip->image[CS4236_EXT_REG] & 0x01));
 222         wss_outb(chip, CS4231P(REG), val);
 223         chip->eimage[CS4236_REG(reg)] = val;
 224 #if 0
 225         printk(KERN_DEBUG "ext out : reg = 0x%x, val = 0x%x\n", reg, val);
 226 #endif
 227 }
 228 EXPORT_SYMBOL(snd_cs4236_ext_out);
 229
 230 unsigned char snd_cs4236_ext_in(struct snd_wss *chip, unsigned char reg)
 231 {
 232         wss_outb(chip, CS4231P(REGSEL), chip->mce_bit | 0x17);
 233         wss_outb(chip, CS4231P(REG),
 234                  reg | (chip->image[CS4236_EXT_REG] & 0x01));
 235 #if 1
 236         return wss_inb(chip, CS4231P(REG));
 237 #else
 238         {
 239                 unsigned char res;
 240                 res = wss_inb(chip, CS4231P(REG));
 241                 printk(KERN_DEBUG "ext in : reg = 0x%x, val = 0x%x\n",
 242                        reg, res);
 243                 return res;
 244         }
 245 #endif
 246 }
 247 EXPORT_SYMBOL(snd_cs4236_ext_in);
 248
 249 #if 0
 250
 251 static void snd_wss_debug(struct snd_wss *chip)
 252 {
 253         printk(KERN_DEBUG
 254                 "CS4231 REGS:      INDEX = 0x%02x  "
 255                 "                 STATUS = 0x%02x\n",
 256                                         wss_inb(chip, CS4231P(REGSEL)),
 257                                         wss_inb(chip, CS4231P(STATUS)));
 258         printk(KERN_DEBUG
 259                 "  0x00: left input      = 0x%02x  "
 260                 "  0x10: alt 1 (CFIG 2)  = 0x%02x\n",
 261                                         snd_wss_in(chip, 0x00),
 262                                         snd_wss_in(chip, 0x10));
 263         printk(KERN_DEBUG
 264                 "  0x01: right input     = 0x%02x  "
 265                 "  0x11: alt 2 (CFIG 3)  = 0x%02x\n",
 266                                         snd_wss_in(chip, 0x01),
 267                                         snd_wss_in(chip, 0x11));
 268         printk(KERN_DEBUG
 269                 "  0x02: GF1 left input  = 0x%02x  "
 270                 "  0x12: left line in    = 0x%02x\n",
 271                                         snd_wss_in(chip, 0x02),
 272                                         snd_wss_in(chip, 0x12));
 273         printk(KERN_DEBUG
 274                 "  0x03: GF1 right input = 0x%02x  "
 275                 "  0x13: right line in   = 0x%02x\n",
 276                                         snd_wss_in(chip, 0x03),
 277                                         snd_wss_in(chip, 0x13));
 278         printk(KERN_DEBUG
 279                 "  0x04: CD left input   = 0x%02x  "
 280                 "  0x14: timer low       = 0x%02x\n",
 281                                         snd_wss_in(chip, 0x04),
 282                                         snd_wss_in(chip, 0x14));
 283         printk(KERN_DEBUG
 284                 "  0x05: CD right input  = 0x%02x  "
 285                 "  0x15: timer high      = 0x%02x\n",
 286                                         snd_wss_in(chip, 0x05),
 287                                         snd_wss_in(chip, 0x15));
 288         printk(KERN_DEBUG
 289                 "  0x06: left output     = 0x%02x  "
 290                 "  0x16: left MIC (PnP)  = 0x%02x\n",
 291                                         snd_wss_in(chip, 0x06),
 292                                         snd_wss_in(chip, 0x16));
 293         printk(KERN_DEBUG
 294                 "  0x07: right output    = 0x%02x  "
 295                 "  0x17: right MIC (PnP) = 0x%02x\n",
 296                                         snd_wss_in(chip, 0x07),
 297                                         snd_wss_in(chip, 0x17));
 298         printk(KERN_DEBUG
 299                 "  0x08: playback format = 0x%02x  "
 300                 "  0x18: IRQ status      = 0x%02x\n",
 301                                         snd_wss_in(chip, 0x08),
 302                                         snd_wss_in(chip, 0x18));
 303         printk(KERN_DEBUG
 304                 "  0x09: iface (CFIG 1)  = 0x%02x  "
 305                 "  0x19: left line out   = 0x%02x\n",
 306                                         snd_wss_in(chip, 0x09),
 307                                         snd_wss_in(chip, 0x19));
 308         printk(KERN_DEBUG
 309                 "  0x0a: pin control     = 0x%02x  "
 310                 "  0x1a: mono control    = 0x%02x\n",
 311                                         snd_wss_in(chip, 0x0a),
 312                                         snd_wss_in(chip, 0x1a));
 313         printk(KERN_DEBUG
 314                 "  0x0b: init & status   = 0x%02x  "
 315                 "  0x1b: right line out  = 0x%02x\n",
 316                                         snd_wss_in(chip, 0x0b),
 317                                         snd_wss_in(chip, 0x1b));
 318         printk(KERN_DEBUG
 319                 "  0x0c: revision & mode = 0x%02x  "
 320                 "  0x1c: record format   = 0x%02x\n",
 321                                         snd_wss_in(chip, 0x0c),
 322                                         snd_wss_in(chip, 0x1c));
 323         printk(KERN_DEBUG
 324                 "  0x0d: loopback        = 0x%02x  "
 325                 "  0x1d: var freq (PnP)  = 0x%02x\n",
 326                                         snd_wss_in(chip, 0x0d),
 327                                         snd_wss_in(chip, 0x1d));
 328         printk(KERN_DEBUG
 329                 "  0x0e: ply upr count   = 0x%02x  "
 330                 "  0x1e: ply lwr count   = 0x%02x\n",
 331                                         snd_wss_in(chip, 0x0e),
 332                                         snd_wss_in(chip, 0x1e));
 333         printk(KERN_DEBUG
 334                 "  0x0f: rec upr count   = 0x%02x  "
 335                 "  0x1f: rec lwr count   = 0x%02x\n",
 336                                         snd_wss_in(chip, 0x0f),
 337                                         snd_wss_in(chip, 0x1f));
 338 }
 339
 340 #endif
 341
 342 /*
 343  *  CS4231 detection / MCE routines
 344  */
 345
 346 static void snd_wss_busy_wait(struct snd_wss *chip)
 347 {
 348         int timeout;
 349
 350         /* huh.. looks like this sequence is proper for CS4231A chip (GUS MAX) */
 351         for (timeout = 5; timeout > 0; timeout--)
 352                 wss_inb(chip, CS4231P(REGSEL));
 353         /* end of cleanup sequence */
 354         for (timeout = 25000;
 355              timeout > 0 && (wss_inb(chip, CS4231P(REGSEL)) & CS4231_INIT);
 356              timeout--)
 357                 udelay(10);
 358 }
 359
 360 void snd_wss_mce_up(struct snd_wss *chip)
 361 {
 362         unsigned long flags;
 363         int timeout;
 364
 365         snd_wss_wait(chip);
 366 #ifdef CONFIG_SND_DEBUG
 367         if (wss_inb(chip, CS4231P(REGSEL)) & CS4231_INIT)
 368                 snd_printk(KERN_DEBUG
 369                            "mce_up - auto calibration time out (0)\n");
 370 #endif
 371         spin_lock_irqsave(&chip->reg_lock, flags);
 372         chip->mce_bit |= CS4231_MCE;
 373         timeout = wss_inb(chip, CS4231P(REGSEL));
 374         if (timeout == 0x80)
 375                 snd_printk(KERN_DEBUG "mce_up [0x%lx]: "
 376                            "serious init problem - codec still busy\n",
 377                            chip->port);
 378         if (!(timeout & CS4231_MCE))
 379                 wss_outb(chip, CS4231P(REGSEL),
 380                          chip->mce_bit | (timeout & 0x1f));
 381         spin_unlock_irqrestore(&chip->reg_lock, flags);
 382 }
 383 EXPORT_SYMBOL(snd_wss_mce_up);
 384
 385 void snd_wss_mce_down(struct snd_wss *chip)
 386 {
 387         unsigned long flags;
 388         unsigned long end_time;
 389         int timeout;
 390         int hw_mask = WSS_HW_CS4231_MASK | WSS_HW_CS4232_MASK | WSS_HW_AD1848;
 391
 392         snd_wss_busy_wait(chip);
 393
 394 #ifdef CONFIG_SND_DEBUG
 395         if (wss_inb(chip, CS4231P(REGSEL)) & CS4231_INIT)
 396                 snd_printk(KERN_DEBUG "mce_down [0x%lx] - "
 397                            "auto calibration time out (0)\n",
 398                            (long)CS4231P(REGSEL));
 399 #endif
 400         spin_lock_irqsave(&chip->reg_lock, flags);
 401         chip->mce_bit &= ~CS4231_MCE;
 402         timeout = wss_inb(chip, CS4231P(REGSEL));
 403         wss_outb(chip, CS4231P(REGSEL), chip->mce_bit | (timeout & 0x1f));
 404         spin_unlock_irqrestore(&chip->reg_lock, flags);
 405         if (timeout == 0x80)
 406                 snd_printk(KERN_DEBUG "mce_down [0x%lx]: "
 407                            "serious init problem - codec still busy\n",
 408                            chip->port);
 409         if ((timeout & CS4231_MCE) == 0 || !(chip->hardware & hw_mask))
 410                 return;
 411
 412         /*
 413          * Wait for (possible -- during init auto-calibration may not be set)
 414          * calibration process to start. Needs up to 5 sample periods on AD1848
 415          * which at the slowest possible rate of 5.5125 kHz means 907 us.
 416          */
 417         msleep(1);
 418
 419         snd_printdd("(1) jiffies = %lu\n", jiffies);
 420
 421         /* check condition up to 250 ms */
 422         end_time = jiffies + msecs_to_jiffies(250);
 423         while (snd_wss_in(chip, CS4231_TEST_INIT) &
 424                 CS4231_CALIB_IN_PROGRESS) {
 425
 426                 if (time_after(jiffies, end_time)) {
 427                         snd_printk(KERN_ERR "mce_down - "
 428                                         "auto calibration time out (2)\n");
 429                         return;
 430                 }
 431                 msleep(1);
 432         }
 433
 434         snd_printdd("(2) jiffies = %lu\n", jiffies);
 435
 436         /* check condition up to 100 ms */
 437         end_time = jiffies + msecs_to_jiffies(100);
 438         while (wss_inb(chip, CS4231P(REGSEL)) & CS4231_INIT) {
 439                 if (time_after(jiffies, end_time)) {
 440                         snd_printk(KERN_ERR "mce_down - auto calibration time out (3)\n");
 441                         return;
 442                 }
 443                 msleep(1);
 444         }
 445
 446         snd_printdd("(3) jiffies = %lu\n", jiffies);
 447         snd_printd("mce_down - exit = 0x%x\n", wss_inb(chip, CS4231P(REGSEL)));
 448 }
 449 EXPORT_SYMBOL(snd_wss_mce_down);
 450
 451 static unsigned int snd_wss_get_count(unsigned char format, unsigned int size)
 452 {
 453         switch (format & 0xe0) {
 454         case CS4231_LINEAR_16:
 455         case CS4231_LINEAR_16_BIG:
 456                 size >>= 1;
 457                 break;
 458         case CS4231_ADPCM_16:
 459                 return size >> 2;
 460         }
 461         if (format & CS4231_STEREO)
 462                 size >>= 1;
 463         return size;
 464 }
 465
 466 static int snd_wss_trigger(struct snd_pcm_substream *substream,
 467                            int cmd)
 468 {
 469         struct snd_wss *chip = snd_pcm_substream_chip(substream);
 470         int result = 0;
 471         unsigned int what;
 472         struct snd_pcm_substream *s;
 473         int do_start;
 474
 475         switch (cmd) {
 476         case SNDRV_PCM_TRIGGER_START:
 477         case SNDRV_PCM_TRIGGER_RESUME:
 478                 do_start = 1; break;
 479         case SNDRV_PCM_TRIGGER_STOP:
 480         case SNDRV_PCM_TRIGGER_SUSPEND:
 481                 do_start = 0; break;
 482         default:
 483                 return -EINVAL;
 484         }
 485
 486         what = 0;
 487         snd_pcm_group_for_each_entry(s, substream) {
 488                 if (s == chip->playback_substream) {
 489                         what |= CS4231_PLAYBACK_ENABLE;
 490                         snd_pcm_trigger_done(s, substream);
 491                 } else if (s == chip->capture_substream) {
 492                         what |= CS4231_RECORD_ENABLE;
 493                         snd_pcm_trigger_done(s, substream);
 494                 }
 495         }
 496         spin_lock(&chip->reg_lock);
 497         if (do_start) {
 498                 chip->image[CS4231_IFACE_CTRL] |= what;
 499                 if (chip->trigger)
 500                         chip->trigger(chip, what, 1);
 501         } else {
 502                 chip->image[CS4231_IFACE_CTRL] &= ~what;
 503                 if (chip->trigger)
 504                         chip->trigger(chip, what, 0);
 505         }
 506         snd_wss_out(chip, CS4231_IFACE_CTRL, chip->image[CS4231_IFACE_CTRL]);
 507         spin_unlock(&chip->reg_lock);
 508 #if 0
 509         snd_wss_debug(chip);
 510 #endif
 511         return result;
 512 }
 513
 514 /*
 515  *  CODEC I/O
 516  */
 517
 518 static unsigned char snd_wss_get_rate(unsigned int rate)
 519 {
 520         int i;
 521
 522         for (i = 0; i < ARRAY_SIZE(rates); i++)
 523                 if (rate == rates[i])
 524                         return freq_bits[i];
 525         // snd_BUG();
 526         return freq_bits[ARRAY_SIZE(rates) - 1];
 527 }
 528
 529 static unsigned char snd_wss_get_format(struct snd_wss *chip,
 530                                         snd_pcm_format_t format,
 531                                         int channels)
 532 {
 533         unsigned char rformat;
 534
 535         rformat = CS4231_LINEAR_8;
 536         switch (format) {
 537         case SNDRV_PCM_FORMAT_MU_LAW:   rformat = CS4231_ULAW_8; break;
 538         case SNDRV_PCM_FORMAT_A_LAW:    rformat = CS4231_ALAW_8; break;
 539         case SNDRV_PCM_FORMAT_S16_LE:   rformat = CS4231_LINEAR_16; break;
 540         case SNDRV_PCM_FORMAT_S16_BE:   rformat = CS4231_LINEAR_16_BIG; break;
 541         case SNDRV_PCM_FORMAT_IMA_ADPCM:        rformat = CS4231_ADPCM_16; break;
 542         }
 543         if (channels > 1)
 544                 rformat |= CS4231_STEREO;
 545 #if 0
 546         snd_printk(KERN_DEBUG "get_format: 0x%x (mode=0x%x)\n", format, mode);
 547 #endif
 548         return rformat;
 549 }
 550
 551 static void snd_wss_calibrate_mute(struct snd_wss *chip, int mute)
 552 {
 553         unsigned long flags;
 554
 555         mute = mute ? 0x80 : 0;
 556         spin_lock_irqsave(&chip->reg_lock, flags);
 557         if (chip->calibrate_mute == mute) {
 558                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 559                 return;
 560         }
 561         if (!mute) {
 562                 snd_wss_dout(chip, CS4231_LEFT_INPUT,
 563                              chip->image[CS4231_LEFT_INPUT]);
 564                 snd_wss_dout(chip, CS4231_RIGHT_INPUT,
 565                              chip->image[CS4231_RIGHT_INPUT]);
 566                 snd_wss_dout(chip, CS4231_LOOPBACK,
 567                              chip->image[CS4231_LOOPBACK]);
 568         } else {
 569                 snd_wss_dout(chip, CS4231_LEFT_INPUT,
 570                              0);
 571                 snd_wss_dout(chip, CS4231_RIGHT_INPUT,
 572                              0);
 573                 snd_wss_dout(chip, CS4231_LOOPBACK,
 574                              0xfd);
 575         }
 576
 577         snd_wss_dout(chip, CS4231_AUX1_LEFT_INPUT,
 578                      mute | chip->image[CS4231_AUX1_LEFT_INPUT]);
 579         snd_wss_dout(chip, CS4231_AUX1_RIGHT_INPUT,
 580                      mute | chip->image[CS4231_AUX1_RIGHT_INPUT]);
 581         snd_wss_dout(chip, CS4231_AUX2_LEFT_INPUT,
 582                      mute | chip->image[CS4231_AUX2_LEFT_INPUT]);
 583         snd_wss_dout(chip, CS4231_AUX2_RIGHT_INPUT,
 584                      mute | chip->image[CS4231_AUX2_RIGHT_INPUT]);
 585         snd_wss_dout(chip, CS4231_LEFT_OUTPUT,
 586                      mute | chip->image[CS4231_LEFT_OUTPUT]);
 587         snd_wss_dout(chip, CS4231_RIGHT_OUTPUT,
 588                      mute | chip->image[CS4231_RIGHT_OUTPUT]);
 589         if (!(chip->hardware & WSS_HW_AD1848_MASK)) {
 590                 snd_wss_dout(chip, CS4231_LEFT_LINE_IN,
 591                              mute | chip->image[CS4231_LEFT_LINE_IN]);
 592                 snd_wss_dout(chip, CS4231_RIGHT_LINE_IN,
 593                              mute | chip->image[CS4231_RIGHT_LINE_IN]);
 594                 snd_wss_dout(chip, CS4231_MONO_CTRL,
 595                              mute ? 0xc0 : chip->image[CS4231_MONO_CTRL]);
 596         }
 597         if (chip->hardware == WSS_HW_INTERWAVE) {
 598                 snd_wss_dout(chip, CS4231_LEFT_MIC_INPUT,
 599                              mute | chip->image[CS4231_LEFT_MIC_INPUT]);
 600                 snd_wss_dout(chip, CS4231_RIGHT_MIC_INPUT,
 601                              mute | chip->image[CS4231_RIGHT_MIC_INPUT]);
 602                 snd_wss_dout(chip, CS4231_LINE_LEFT_OUTPUT,
 603                              mute | chip->image[CS4231_LINE_LEFT_OUTPUT]);
 604                 snd_wss_dout(chip, CS4231_LINE_RIGHT_OUTPUT,
 605                              mute | chip->image[CS4231_LINE_RIGHT_OUTPUT]);
 606         }
 607         chip->calibrate_mute = mute;
 608         spin_unlock_irqrestore(&chip->reg_lock, flags);
 609 }
 610
 611 static void snd_wss_playback_format(struct snd_wss *chip,
 612                                        struct snd_pcm_hw_params *params,
 613                                        unsigned char pdfr)
 614 {
 615         unsigned long flags;
 616         int full_calib = 1;
 617
 618         mutex_lock(&chip->mce_mutex);
 619         if (chip->hardware == WSS_HW_CS4231A ||
 620             (chip->hardware & WSS_HW_CS4232_MASK)) {
 621                 spin_lock_irqsave(&chip->reg_lock, flags);
 622                 if ((chip->image[CS4231_PLAYBK_FORMAT] & 0x0f) == (pdfr & 0x0f)) {      /* rate is same? */
 623                         snd_wss_out(chip, CS4231_ALT_FEATURE_1,
 624                                     chip->image[CS4231_ALT_FEATURE_1] | 0x10);
 625                         chip->image[CS4231_PLAYBK_FORMAT] = pdfr;
 626                         snd_wss_out(chip, CS4231_PLAYBK_FORMAT,
 627                                     chip->image[CS4231_PLAYBK_FORMAT]);
 628                         snd_wss_out(chip, CS4231_ALT_FEATURE_1,
 629                                     chip->image[CS4231_ALT_FEATURE_1] &= ~0x10);
 630                         udelay(100); /* Fixes audible clicks at least on GUS MAX */
 631                         full_calib = 0;
 632                 }
 633                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 634         } else if (chip->hardware == WSS_HW_AD1845) {
 635                 unsigned rate = params_rate(params);
 636
 637                 /*
 638                  * Program the AD1845 correctly for the playback stream.
 639                  * Note that we do NOT need to toggle the MCE bit because
 640                  * the PLAYBACK_ENABLE bit of the Interface Configuration
 641                  * register is set.
 642                  *
 643                  * NOTE: We seem to need to write to the MSB before the LSB
 644                  *       to get the correct sample frequency.
 645                  */
 646                 spin_lock_irqsave(&chip->reg_lock, flags);
 647                 snd_wss_out(chip, CS4231_PLAYBK_FORMAT, (pdfr & 0xf0));
 648                 snd_wss_out(chip, AD1845_UPR_FREQ_SEL, (rate >> 8) & 0xff);
 649                 snd_wss_out(chip, AD1845_LWR_FREQ_SEL, rate & 0xff);
 650                 full_calib = 0;
 651                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 652         }
 653         if (full_calib) {
 654                 snd_wss_mce_up(chip);
 655                 spin_lock_irqsave(&chip->reg_lock, flags);
 656                 if (chip->hardware != WSS_HW_INTERWAVE && !chip->single_dma) {
 657                         if (chip->image[CS4231_IFACE_CTRL] & CS4231_RECORD_ENABLE)
 658                                 pdfr = (pdfr & 0xf0) |
 659                                        (chip->image[CS4231_REC_FORMAT] & 0x0f);
 660                 } else {
 661                         chip->image[CS4231_PLAYBK_FORMAT] = pdfr;
 662                 }
 663                 snd_wss_out(chip, CS4231_PLAYBK_FORMAT, pdfr);
 664                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 665                 if (chip->hardware == WSS_HW_OPL3SA2)
 666                         udelay(100);    /* this seems to help */
 667                 snd_wss_mce_down(chip);
 668         }
 669         mutex_unlock(&chip->mce_mutex);
 670 }
 671
 672 static void snd_wss_capture_format(struct snd_wss *chip,
 673                                    struct snd_pcm_hw_params *params,
 674                                    unsigned char cdfr)
 675 {
 676         unsigned long flags;
 677         int full_calib = 1;
 678
 679         mutex_lock(&chip->mce_mutex);
 680         if (chip->hardware == WSS_HW_CS4231A ||
 681             (chip->hardware & WSS_HW_CS4232_MASK)) {
 682                 spin_lock_irqsave(&chip->reg_lock, flags);
 683                 if ((chip->image[CS4231_PLAYBK_FORMAT] & 0x0f) == (cdfr & 0x0f) ||      /* rate is same? */
 684                     (chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE)) {
 685                         snd_wss_out(chip, CS4231_ALT_FEATURE_1,
 686                                 chip->image[CS4231_ALT_FEATURE_1] | 0x20);
 687                         snd_wss_out(chip, CS4231_REC_FORMAT,
 688                                 chip->image[CS4231_REC_FORMAT] = cdfr);
 689                         snd_wss_out(chip, CS4231_ALT_FEATURE_1,
 690                                 chip->image[CS4231_ALT_FEATURE_1] &= ~0x20);
 691                         full_calib = 0;
 692                 }
 693                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 694         } else if (chip->hardware == WSS_HW_AD1845) {
 695                 unsigned rate = params_rate(params);
 696
 697                 /*
 698                  * Program the AD1845 correctly for the capture stream.
 699                  * Note that we do NOT need to toggle the MCE bit because
 700                  * the PLAYBACK_ENABLE bit of the Interface Configuration
 701                  * register is set.
 702                  *
 703                  * NOTE: We seem to need to write to the MSB before the LSB
 704                  *       to get the correct sample frequency.
 705                  */
 706                 spin_lock_irqsave(&chip->reg_lock, flags);
 707                 snd_wss_out(chip, CS4231_REC_FORMAT, (cdfr & 0xf0));
 708                 snd_wss_out(chip, AD1845_UPR_FREQ_SEL, (rate >> 8) & 0xff);
 709                 snd_wss_out(chip, AD1845_LWR_FREQ_SEL, rate & 0xff);
 710                 full_calib = 0;
 711                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 712         }
 713         if (full_calib) {
 714                 snd_wss_mce_up(chip);
 715                 spin_lock_irqsave(&chip->reg_lock, flags);
 716                 if (chip->hardware != WSS_HW_INTERWAVE &&
 717                     !(chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE)) {
 718                         if (chip->single_dma)
 719                                 snd_wss_out(chip, CS4231_PLAYBK_FORMAT, cdfr);
 720                         else
 721                                 snd_wss_out(chip, CS4231_PLAYBK_FORMAT,
 722                                    (chip->image[CS4231_PLAYBK_FORMAT] & 0xf0) |
 723                                    (cdfr & 0x0f));
 724                         spin_unlock_irqrestore(&chip->reg_lock, flags);
 725                         snd_wss_mce_down(chip);
 726                         snd_wss_mce_up(chip);
 727                         spin_lock_irqsave(&chip->reg_lock, flags);
 728                 }
 729                 if (chip->hardware & WSS_HW_AD1848_MASK)
 730                         snd_wss_out(chip, CS4231_PLAYBK_FORMAT, cdfr);
 731                 else
 732                         snd_wss_out(chip, CS4231_REC_FORMAT, cdfr);
 733                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 734                 snd_wss_mce_down(chip);
 735         }
 736         mutex_unlock(&chip->mce_mutex);
 737 }
 738
 739 /*
 740  *  Timer interface
 741  */
 742
 743 static unsigned long snd_wss_timer_resolution(struct snd_timer *timer)
 744 {
 745         struct snd_wss *chip = snd_timer_chip(timer);
 746         if (chip->hardware & WSS_HW_CS4236B_MASK)
 747                 return 14467;
 748         else
 749                 return chip->image[CS4231_PLAYBK_FORMAT] & 1 ? 9969 : 9920;
 750 }
 751
 752 static int snd_wss_timer_start(struct snd_timer *timer)
 753 {
 754         unsigned long flags;
 755         unsigned int ticks;
 756         struct snd_wss *chip = snd_timer_chip(timer);
 757         spin_lock_irqsave(&chip->reg_lock, flags);
 758         ticks = timer->sticks;
 759         if ((chip->image[CS4231_ALT_FEATURE_1] & CS4231_TIMER_ENABLE) == 0 ||
 760             (unsigned char)(ticks >> 8) != chip->image[CS4231_TIMER_HIGH] ||
 761             (unsigned char)ticks != chip->image[CS4231_TIMER_LOW]) {
 762                 chip->image[CS4231_TIMER_HIGH] = (unsigned char) (ticks >> 8);
 763                 snd_wss_out(chip, CS4231_TIMER_HIGH,
 764                             chip->image[CS4231_TIMER_HIGH]);
 765                 chip->image[CS4231_TIMER_LOW] = (unsigned char) ticks;
 766                 snd_wss_out(chip, CS4231_TIMER_LOW,
 767                             chip->image[CS4231_TIMER_LOW]);
 768                 snd_wss_out(chip, CS4231_ALT_FEATURE_1,
 769                             chip->image[CS4231_ALT_FEATURE_1] |
 770                             CS4231_TIMER_ENABLE);
 771         }
 772         spin_unlock_irqrestore(&chip->reg_lock, flags);
 773         return 0;
 774 }
 775
 776 static int snd_wss_timer_stop(struct snd_timer *timer)
 777 {
 778         unsigned long flags;
 779         struct snd_wss *chip = snd_timer_chip(timer);
 780         spin_lock_irqsave(&chip->reg_lock, flags);
 781         chip->image[CS4231_ALT_FEATURE_1] &= ~CS4231_TIMER_ENABLE;
 782         snd_wss_out(chip, CS4231_ALT_FEATURE_1,
 783                     chip->image[CS4231_ALT_FEATURE_1]);
 784         spin_unlock_irqrestore(&chip->reg_lock, flags);
 785         return 0;
 786 }
 787
 788 static void snd_wss_init(struct snd_wss *chip)
 789 {
 790         unsigned long flags;
 791
 792         snd_wss_calibrate_mute(chip, 1);
 793         snd_wss_mce_down(chip);
 794
 795 #ifdef SNDRV_DEBUG_MCE
 796         snd_printk(KERN_DEBUG "init: (1)\n");
 797 #endif
 798         snd_wss_mce_up(chip);
 799         spin_lock_irqsave(&chip->reg_lock, flags);
 800         chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_PLAYBACK_ENABLE |
 801                                             CS4231_PLAYBACK_PIO |
 802                                             CS4231_RECORD_ENABLE |
 803                                             CS4231_RECORD_PIO |
 804                                             CS4231_CALIB_MODE);
 805         chip->image[CS4231_IFACE_CTRL] |= CS4231_AUTOCALIB;
 806         snd_wss_out(chip, CS4231_IFACE_CTRL, chip->image[CS4231_IFACE_CTRL]);
 807         spin_unlock_irqrestore(&chip->reg_lock, flags);
 808         snd_wss_mce_down(chip);
 809
 810 #ifdef SNDRV_DEBUG_MCE
 811         snd_printk(KERN_DEBUG "init: (2)\n");
 812 #endif
 813
 814         snd_wss_mce_up(chip);
 815         spin_lock_irqsave(&chip->reg_lock, flags);
 816         chip->image[CS4231_IFACE_CTRL] &= ~CS4231_AUTOCALIB;
 817         snd_wss_out(chip, CS4231_IFACE_CTRL, chip->image[CS4231_IFACE_CTRL]);
 818         snd_wss_out(chip,
 819                     CS4231_ALT_FEATURE_1, chip->image[CS4231_ALT_FEATURE_1]);
 820         spin_unlock_irqrestore(&chip->reg_lock, flags);
 821         snd_wss_mce_down(chip);
 822
 823 #ifdef SNDRV_DEBUG_MCE
 824         snd_printk(KERN_DEBUG "init: (3) - afei = 0x%x\n",
 825                    chip->image[CS4231_ALT_FEATURE_1]);
 826 #endif
 827
 828         spin_lock_irqsave(&chip->reg_lock, flags);
 829         snd_wss_out(chip, CS4231_ALT_FEATURE_2,
 830                     chip->image[CS4231_ALT_FEATURE_2]);
 831         spin_unlock_irqrestore(&chip->reg_lock, flags);
 832
 833         snd_wss_mce_up(chip);
 834         spin_lock_irqsave(&chip->reg_lock, flags);
 835         snd_wss_out(chip, CS4231_PLAYBK_FORMAT,
 836                     chip->image[CS4231_PLAYBK_FORMAT]);
 837         spin_unlock_irqrestore(&chip->reg_lock, flags);
 838         snd_wss_mce_down(chip);
 839
 840 #ifdef SNDRV_DEBUG_MCE
 841         snd_printk(KERN_DEBUG "init: (4)\n");
 842 #endif
 843
 844         snd_wss_mce_up(chip);
 845         spin_lock_irqsave(&chip->reg_lock, flags);
 846         if (!(chip->hardware & WSS_HW_AD1848_MASK))
 847                 snd_wss_out(chip, CS4231_REC_FORMAT,
 848                             chip->image[CS4231_REC_FORMAT]);
 849         spin_unlock_irqrestore(&chip->reg_lock, flags);
 850         snd_wss_mce_down(chip);
 851         snd_wss_calibrate_mute(chip, 0);
 852
 853 #ifdef SNDRV_DEBUG_MCE
 854         snd_printk(KERN_DEBUG "init: (5)\n");
 855 #endif
 856 }
 857
 858 static int snd_wss_open(struct snd_wss *chip, unsigned int mode)
 859 {
 860         unsigned long flags;
 861
 862         mutex_lock(&chip->open_mutex);
 863         if ((chip->mode & mode) ||
 864             ((chip->mode & WSS_MODE_OPEN) && chip->single_dma)) {
 865                 mutex_unlock(&chip->open_mutex);
 866                 return -EAGAIN;
 867         }
 868         if (chip->mode & WSS_MODE_OPEN) {
 869                 chip->mode |= mode;
 870                 mutex_unlock(&chip->open_mutex);
 871                 return 0;
 872         }
 873         /* ok. now enable and ack CODEC IRQ */
 874         spin_lock_irqsave(&chip->reg_lock, flags);
 875         if (!(chip->hardware & WSS_HW_AD1848_MASK)) {
 876                 snd_wss_out(chip, CS4231_IRQ_STATUS,
 877                             CS4231_PLAYBACK_IRQ |
 878                             CS4231_RECORD_IRQ |
 879                             CS4231_TIMER_IRQ);
 880                 snd_wss_out(chip, CS4231_IRQ_STATUS, 0);
 881         }
 882         wss_outb(chip, CS4231P(STATUS), 0);     /* clear IRQ */
 883         wss_outb(chip, CS4231P(STATUS), 0);     /* clear IRQ */
 884         chip->image[CS4231_PIN_CTRL] |= CS4231_IRQ_ENABLE;
 885         snd_wss_out(chip, CS4231_PIN_CTRL, chip->image[CS4231_PIN_CTRL]);
 886         if (!(chip->hardware & WSS_HW_AD1848_MASK)) {
 887                 snd_wss_out(chip, CS4231_IRQ_STATUS,
 888                             CS4231_PLAYBACK_IRQ |
 889                             CS4231_RECORD_IRQ |
 890                             CS4231_TIMER_IRQ);
 891                 snd_wss_out(chip, CS4231_IRQ_STATUS, 0);
 892         }
 893         spin_unlock_irqrestore(&chip->reg_lock, flags);
 894
 895         chip->mode = mode;
 896         mutex_unlock(&chip->open_mutex);
 897         return 0;
 898 }
 899
 900 static void snd_wss_close(struct snd_wss *chip, unsigned int mode)
 901 {
 902         unsigned long flags;
 903
 904         mutex_lock(&chip->open_mutex);
 905         chip->mode &= ~mode;
 906         if (chip->mode & WSS_MODE_OPEN) {
 907                 mutex_unlock(&chip->open_mutex);
 908                 return;
 909         }
 910         /* disable IRQ */
 911         spin_lock_irqsave(&chip->reg_lock, flags);
 912         if (!(chip->hardware & WSS_HW_AD1848_MASK))
 913                 snd_wss_out(chip, CS4231_IRQ_STATUS, 0);
 914         wss_outb(chip, CS4231P(STATUS), 0);     /* clear IRQ */
 915         wss_outb(chip, CS4231P(STATUS), 0);     /* clear IRQ */
 916         chip->image[CS4231_PIN_CTRL] &= ~CS4231_IRQ_ENABLE;
 917         snd_wss_out(chip, CS4231_PIN_CTRL, chip->image[CS4231_PIN_CTRL]);
 918
 919         /* now disable record & playback */
 920
 921         if (chip->image[CS4231_IFACE_CTRL] & (CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO |
 922                                                CS4231_RECORD_ENABLE | CS4231_RECORD_PIO)) {
 923                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 924                 snd_wss_mce_up(chip);
 925                 spin_lock_irqsave(&chip->reg_lock, flags);
 926                 chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO |
 927                                                      CS4231_RECORD_ENABLE | CS4231_RECORD_PIO);
 928                 snd_wss_out(chip, CS4231_IFACE_CTRL,
 929                             chip->image[CS4231_IFACE_CTRL]);
 930                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 931                 snd_wss_mce_down(chip);
 932                 spin_lock_irqsave(&chip->reg_lock, flags);
 933         }
 934
 935         /* clear IRQ again */
 936         if (!(chip->hardware & WSS_HW_AD1848_MASK))
 937                 snd_wss_out(chip, CS4231_IRQ_STATUS, 0);
 938         wss_outb(chip, CS4231P(STATUS), 0);     /* clear IRQ */
 939         wss_outb(chip, CS4231P(STATUS), 0);     /* clear IRQ */
 940         spin_unlock_irqrestore(&chip->reg_lock, flags);
 941
 942         chip->mode = 0;
 943         mutex_unlock(&chip->open_mutex);
 944 }
 945
 946 /*
 947  *  timer open/close
 948  */
 949
 950 static int snd_wss_timer_open(struct snd_timer *timer)
 951 {
 952         struct snd_wss *chip = snd_timer_chip(timer);
 953         snd_wss_open(chip, WSS_MODE_TIMER);
 954         return 0;
 955 }
 956
 957 static int snd_wss_timer_close(struct snd_timer *timer)
 958 {
 959         struct snd_wss *chip = snd_timer_chip(timer);
 960         snd_wss_close(chip, WSS_MODE_TIMER);
 961         return 0;
 962 }
 963
 964 static struct snd_timer_hardware snd_wss_timer_table =
 965 {
 966         .flags =        SNDRV_TIMER_HW_AUTO,
 967         .resolution =   9945,
 968         .ticks =        65535,
 969         .open =         snd_wss_timer_open,
 970         .close =        snd_wss_timer_close,
 971         .c_resolution = snd_wss_timer_resolution,
 972         .start =        snd_wss_timer_start,
 973         .stop =         snd_wss_timer_stop,
 974 };
 975
 976 /*
 977  *  ok.. exported functions..
 978  */
 979
 980 static int snd_wss_playback_hw_params(struct snd_pcm_substream *substream,
 981                                          struct snd_pcm_hw_params *hw_params)
 982 {
 983         struct snd_wss *chip = snd_pcm_substream_chip(substream);
 984         unsigned char new_pdfr;
 985         int err;
 986
 987         if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
 988                 return err;
 989         new_pdfr = snd_wss_get_format(chip, params_format(hw_params),
 990                                 params_channels(hw_params)) |
 991                                 snd_wss_get_rate(params_rate(hw_params));
 992         chip->set_playback_format(chip, hw_params, new_pdfr);
 993         return 0;
 994 }
 995
 996 static int snd_wss_playback_hw_free(struct snd_pcm_substream *substream)
 997 {
 998         return snd_pcm_lib_free_pages(substream);
 999 }
1000
1001 static int snd_wss_playback_prepare(struct snd_pcm_substream *substream)
1002 {
1003         struct snd_wss *chip = snd_pcm_substream_chip(substream);
1004         struct snd_pcm_runtime *runtime = substream->runtime;
1005         unsigned long flags;
1006         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
1007         unsigned int count = snd_pcm_lib_period_bytes(substream);
1008
1009         spin_lock_irqsave(&chip->reg_lock, flags);
1010         chip->p_dma_size = size;
1011         chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO);
1012         snd_dma_program(chip->dma1, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT);
1013         count = snd_wss_get_count(chip->image[CS4231_PLAYBK_FORMAT], count) - 1;
1014         snd_wss_out(chip, CS4231_PLY_LWR_CNT, (unsigned char) count);
1015         snd_wss_out(chip, CS4231_PLY_UPR_CNT, (unsigned char) (count >> 8));
1016         spin_unlock_irqrestore(&chip->reg_lock, flags);
1017 #if 0
1018         snd_wss_debug(chip);
1019 #endif
1020         return 0;
1021 }
1022
1023 static int snd_wss_capture_hw_params(struct snd_pcm_substream *substream,
1024                                         struct snd_pcm_hw_params *hw_params)
1025 {
1026         struct snd_wss *chip = snd_pcm_substream_chip(substream);
1027         unsigned char new_cdfr;
1028         int err;
1029
1030         if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
1031                 return err;
1032         new_cdfr = snd_wss_get_format(chip, params_format(hw_params),
1033                            params_channels(hw_params)) |
1034                            snd_wss_get_rate(params_rate(hw_params));
1035         chip->set_capture_format(chip, hw_params, new_cdfr);
1036         return 0;
1037 }
1038
1039 static int snd_wss_capture_hw_free(struct snd_pcm_substream *substream)
1040 {
1041         return snd_pcm_lib_free_pages(substream);
1042 }
1043
1044 static int snd_wss_capture_prepare(struct snd_pcm_substream *substream)
1045 {
1046         struct snd_wss *chip = snd_pcm_substream_chip(substream);
1047         struct snd_pcm_runtime *runtime = substream->runtime;
1048         unsigned long flags;
1049         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
1050         unsigned int count = snd_pcm_lib_period_bytes(substream);
1051
1052         spin_lock_irqsave(&chip->reg_lock, flags);
1053         chip->c_dma_size = size;
1054         chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_RECORD_ENABLE | CS4231_RECORD_PIO);
1055         snd_dma_program(chip->dma2, runtime->dma_addr, size, DMA_MODE_READ | DMA_AUTOINIT);
1056         if (chip->hardware & WSS_HW_AD1848_MASK)
1057                 count = snd_wss_get_count(chip->image[CS4231_PLAYBK_FORMAT],
1058                                           count);
1059         else
1060                 count = snd_wss_get_count(chip->image[CS4231_REC_FORMAT],
1061                                           count);
1062         count--;
1063         if (chip->single_dma && chip->hardware != WSS_HW_INTERWAVE) {
1064                 snd_wss_out(chip, CS4231_PLY_LWR_CNT, (unsigned char) count);
1065                 snd_wss_out(chip, CS4231_PLY_UPR_CNT,
1066                             (unsigned char) (count >> 8));
1067         } else {
1068                 snd_wss_out(chip, CS4231_REC_LWR_CNT, (unsigned char) count);
1069                 snd_wss_out(chip, CS4231_REC_UPR_CNT,
1070                             (unsigned char) (count >> 8));
1071         }
1072         spin_unlock_irqrestore(&chip->reg_lock, flags);
1073         return 0;
1074 }
1075
1076 void snd_wss_overrange(struct snd_wss *chip)
1077 {
1078         unsigned long flags;
1079         unsigned char res;
1080
1081         spin_lock_irqsave(&chip->reg_lock, flags);
1082         res = snd_wss_in(chip, CS4231_TEST_INIT);
1083         spin_unlock_irqrestore(&chip->reg_lock, flags);
1084         if (res & (0x08 | 0x02))        /* detect overrange only above 0dB; may be user selectable? */
1085                 chip->capture_substream->runtime->overrange++;
1086 }
1087 EXPORT_SYMBOL(snd_wss_overrange);
1088
1089 irqreturn_t snd_wss_interrupt(int irq, void *dev_id)
1090 {
1091         struct snd_wss *chip = dev_id;
1092         unsigned char status;
1093
1094         if (chip->hardware & WSS_HW_AD1848_MASK)
1095                 /* pretend it was the only possible irq for AD1848 */
1096                 status = CS4231_PLAYBACK_IRQ;
1097         else
1098                 status = snd_wss_in(chip, CS4231_IRQ_STATUS);
1099         if (status & CS4231_TIMER_IRQ) {
1100                 if (chip->timer)
1101                         snd_timer_interrupt(chip->timer, chip->timer->sticks);
1102         }
1103         if (chip->single_dma && chip->hardware != WSS_HW_INTERWAVE) {
1104                 if (status & CS4231_PLAYBACK_IRQ) {
1105                         if (chip->mode & WSS_MODE_PLAY) {
1106                                 if (chip->playback_substream)
1107                                         snd_pcm_period_elapsed(chip->playback_substream);
1108                         }
1109                         if (chip->mode & WSS_MODE_RECORD) {
1110                                 if (chip->capture_substream) {
1111                                         snd_wss_overrange(chip);
1112                                         snd_pcm_period_elapsed(chip->capture_substream);
1113                                 }
1114                         }
1115                 }
1116         } else {
1117                 if (status & CS4231_PLAYBACK_IRQ) {
1118                         if (chip->playback_substream)
1119                                 snd_pcm_period_elapsed(chip->playback_substream);
1120                 }
1121                 if (status & CS4231_RECORD_IRQ) {
1122                         if (chip->capture_substream) {
1123                                 snd_wss_overrange(chip);
1124                                 snd_pcm_period_elapsed(chip->capture_substream);
1125                         }
1126                 }
1127         }
1128
1129         spin_lock(&chip->reg_lock);
1130         status = ~CS4231_ALL_IRQS | ~status;
1131         if (chip->hardware & WSS_HW_AD1848_MASK)
1132                 wss_outb(chip, CS4231P(STATUS), 0);
1133         else
1134                 snd_wss_out(chip, CS4231_IRQ_STATUS, status);
1135         spin_unlock(&chip->reg_lock);
1136         return IRQ_HANDLED;
1137 }
1138 EXPORT_SYMBOL(snd_wss_interrupt);
1139
1140 static snd_pcm_uframes_t snd_wss_playback_pointer(struct snd_pcm_substream *substream)
1141 {
1142         struct snd_wss *chip = snd_pcm_substream_chip(substream);
1143         size_t ptr;
1144
1145         if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE))
1146                 return 0;
1147         ptr = snd_dma_pointer(chip->dma1, chip->p_dma_size);
1148         return bytes_to_frames(substream->runtime, ptr);
1149 }
1150
1151 static snd_pcm_uframes_t snd_wss_capture_pointer(struct snd_pcm_substream *substream)
1152 {
1153         struct snd_wss *chip = snd_pcm_substream_chip(substream);
1154         size_t ptr;
1155
1156         if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_RECORD_ENABLE))
1157                 return 0;
1158         ptr = snd_dma_pointer(chip->dma2, chip->c_dma_size);
1159         return bytes_to_frames(substream->runtime, ptr);
1160 }
1161
1162 /*
1163
1164  */
1165
1166 static int snd_ad1848_probe(struct snd_wss *chip)
1167 {
1168         unsigned long timeout = jiffies + msecs_to_jiffies(1000);
1169         unsigned long flags;
1170         unsigned char r;
1171         unsigned short hardware = 0;
1172         int err = 0;
1173         int i;
1174
1175         while (wss_inb(chip, CS4231P(REGSEL)) & CS4231_INIT) {
1176                 if (time_after(jiffies, timeout))
1177                         return -ENODEV;
1178                 cond_resched();
1179         }
1180         spin_lock_irqsave(&chip->reg_lock, flags);
1181
1182         /* set CS423x MODE 1 */
1183         snd_wss_dout(chip, CS4231_MISC_INFO, 0);
1184
1185         snd_wss_dout(chip, CS4231_RIGHT_INPUT, 0x45); /* 0x55 & ~0x10 */
1186         r = snd_wss_in(chip, CS4231_RIGHT_INPUT);
1187         if (r != 0x45) {
1188                 /* RMGE always high on AD1847 */
1189                 if ((r & ~CS4231_ENABLE_MIC_GAIN) != 0x45) {
1190                         err = -ENODEV;
1191                         goto out;
1192                 }
1193                 hardware = WSS_HW_AD1847;
1194         } else {
1195                 snd_wss_dout(chip, CS4231_LEFT_INPUT,  0xaa);
1196                 r = snd_wss_in(chip, CS4231_LEFT_INPUT);
1197                 /* L/RMGE always low on AT2320 */
1198                 if ((r | CS4231_ENABLE_MIC_GAIN) != 0xaa) {
1199                         err = -ENODEV;
1200                         goto out;
1201                 }
1202         }
1203
1204         /* clear pending IRQ */
1205         wss_inb(chip, CS4231P(STATUS));
1206         wss_outb(chip, CS4231P(STATUS), 0);
1207         mb();
1208
1209         if ((chip->hardware & WSS_HW_TYPE_MASK) != WSS_HW_DETECT)
1210                 goto out;
1211
1212         if (hardware) {
1213                 chip->hardware = hardware;
1214                 goto out;
1215         }
1216
1217         r = snd_wss_in(chip, CS4231_MISC_INFO);
1218
1219         /* set CS423x MODE 2 */
1220         snd_wss_dout(chip, CS4231_MISC_INFO, CS4231_MODE2);
1221         for (i = 0; i < 16; i++) {
1222                 if (snd_wss_in(chip, i) != snd_wss_in(chip, 16 + i)) {
1223                         /* we have more than 16 registers: check ID */
1224                         if ((r & 0xf) != 0xa)
1225                                 goto out_mode;
1226                         /*
1227                          * on CMI8330, CS4231_VERSION is volume control and
1228                          * can be set to 0
1229                          */
1230                         snd_wss_dout(chip, CS4231_VERSION, 0);
1231                         r = snd_wss_in(chip, CS4231_VERSION) & 0xe7;
1232                         if (!r)
1233                                 chip->hardware = WSS_HW_CMI8330;
1234                         goto out_mode;
1235                 }
1236         }
1237         if (r & 0x80)
1238                 chip->hardware = WSS_HW_CS4248;
1239         else
1240                 chip->hardware = WSS_HW_AD1848;
1241 out_mode:
1242         snd_wss_dout(chip, CS4231_MISC_INFO, 0);
1243 out:
1244         spin_unlock_irqrestore(&chip->reg_lock, flags);
1245         return err;
1246 }
1247
1248 static int snd_wss_probe(struct snd_wss *chip)
1249 {
1250         unsigned long flags;
1251         int i, id, rev, regnum;
1252         unsigned char *ptr;
1253         unsigned int hw;
1254
1255         id = snd_ad1848_probe(chip);
1256         if (id < 0)
1257                 return id;
1258
1259         hw = chip->hardware;
1260         if ((hw & WSS_HW_TYPE_MASK) == WSS_HW_DETECT) {
1261                 for (i = 0; i < 50; i++) {
1262                         mb();
1263                         if (wss_inb(chip, CS4231P(REGSEL)) & CS4231_INIT)
1264                                 msleep(2);
1265                         else {
1266                                 spin_lock_irqsave(&chip->reg_lock, flags);
1267                                 snd_wss_out(chip, CS4231_MISC_INFO,
1268                                             CS4231_MODE2);
1269                                 id = snd_wss_in(chip, CS4231_MISC_INFO) & 0x0f;
1270                                 spin_unlock_irqrestore(&chip->reg_lock, flags);
1271                                 if (id == 0x0a)
1272                                         break;  /* this is valid value */
1273                         }
1274                 }
1275                 snd_printdd("wss: port = 0x%lx, id = 0x%x\n", chip->port, id);
1276                 if (id != 0x0a)
1277                         return -ENODEV; /* no valid device found */
1278
1279                 rev = snd_wss_in(chip, CS4231_VERSION) & 0xe7;
1280                 snd_printdd("CS4231: VERSION (I25) = 0x%x\n", rev);
1281                 if (rev == 0x80) {
1282                         unsigned char tmp = snd_wss_in(chip, 23);
1283                         snd_wss_out(chip, 23, ~tmp);
1284                         if (snd_wss_in(chip, 23) != tmp)
1285                                 chip->hardware = WSS_HW_AD1845;
1286                         else
1287                                 chip->hardware = WSS_HW_CS4231;
1288                 } else if (rev == 0xa0) {
1289                         chip->hardware = WSS_HW_CS4231A;
1290                 } else if (rev == 0xa2) {
1291                         chip->hardware = WSS_HW_CS4232;
1292                 } else if (rev == 0xb2) {
1293                         chip->hardware = WSS_HW_CS4232A;
1294                 } else if (rev == 0x83) {
1295                         chip->hardware = WSS_HW_CS4236;
1296                 } else if (rev == 0x03) {
1297                         chip->hardware = WSS_HW_CS4236B;
1298                 } else {
1299                         snd_printk(KERN_ERR
1300                                    "unknown CS chip with version 0x%x\n", rev);
1301                         return -ENODEV;         /* unknown CS4231 chip? */
1302                 }
1303         }
1304         spin_lock_irqsave(&chip->reg_lock, flags);
1305         wss_inb(chip, CS4231P(STATUS)); /* clear any pendings IRQ */
1306         wss_outb(chip, CS4231P(STATUS), 0);
1307         mb();
1308         spin_unlock_irqrestore(&chip->reg_lock, flags);
1309
1310         if (!(chip->hardware & WSS_HW_AD1848_MASK))
1311                 chip->image[CS4231_MISC_INFO] = CS4231_MODE2;
1312         switch (chip->hardware) {
1313         case WSS_HW_INTERWAVE:
1314                 chip->image[CS4231_MISC_INFO] = CS4231_IW_MODE3;
1315                 break;
1316         case WSS_HW_CS4235:
1317         case WSS_HW_CS4236B:
1318         case WSS_HW_CS4237B:
1319         case WSS_HW_CS4238B:
1320         case WSS_HW_CS4239:
1321                 if (hw == WSS_HW_DETECT3)
1322                         chip->image[CS4231_MISC_INFO] = CS4231_4236_MODE3;
1323                 else
1324                         chip->hardware = WSS_HW_CS4236;
1325                 break;
1326         }
1327
1328         chip->image[CS4231_IFACE_CTRL] =
1329             (chip->image[CS4231_IFACE_CTRL] & ~CS4231_SINGLE_DMA) |
1330             (chip->single_dma ? CS4231_SINGLE_DMA : 0);
1331         if (chip->hardware != WSS_HW_OPTI93X) {
1332                 chip->image[CS4231_ALT_FEATURE_1] = 0x80;
1333                 chip->image[CS4231_ALT_FEATURE_2] =
1334                         chip->hardware == WSS_HW_INTERWAVE ? 0xc2 : 0x01;
1335         }
1336         /* enable fine grained frequency selection */
1337         if (chip->hardware == WSS_HW_AD1845)
1338                 chip->image[AD1845_PWR_DOWN] = 8;
1339
1340         ptr = (unsigned char *) &chip->image;
1341         regnum = (chip->hardware & WSS_HW_AD1848_MASK) ? 16 : 32;
1342         snd_wss_mce_down(chip);
1343         spin_lock_irqsave(&chip->reg_lock, flags);
1344         for (i = 0; i < regnum; i++)    /* ok.. fill all registers */
1345                 snd_wss_out(chip, i, *ptr++);
1346         spin_unlock_irqrestore(&chip->reg_lock, flags);
1347         snd_wss_mce_up(chip);
1348         snd_wss_mce_down(chip);
1349
1350         mdelay(2);
1351
1352         /* ok.. try check hardware version for CS4236+ chips */
1353         if ((hw & WSS_HW_TYPE_MASK) == WSS_HW_DETECT) {
1354                 if (chip->hardware == WSS_HW_CS4236B) {
1355                         rev = snd_cs4236_ext_in(chip, CS4236_VERSION);
1356                         snd_cs4236_ext_out(chip, CS4236_VERSION, 0xff);
1357                         id = snd_cs4236_ext_in(chip, CS4236_VERSION);
1358                         snd_cs4236_ext_out(chip, CS4236_VERSION, rev);
1359                         snd_printdd("CS4231: ext version; rev = 0x%x, id = 0x%x\n", rev, id);
1360                         if ((id & 0x1f) == 0x1d) {      /* CS4235 */
1361                                 chip->hardware = WSS_HW_CS4235;
1362                                 switch (id >> 5) {
1363                                 case 4:
1364                                 case 5:
1365                                 case 6:
1366                                         break;
1367                                 default:
1368                                         snd_printk(KERN_WARNING
1369                                                 "unknown CS4235 chip "
1370                                                 "(enhanced version = 0x%x)\n",
1371                                                 id);
1372                                 }
1373                         } else if ((id & 0x1f) == 0x0b) {       /* CS4236/B */
1374                                 switch (id >> 5) {
1375                                 case 4:
1376                                 case 5:
1377                                 case 6:
1378                                 case 7:
1379                                         chip->hardware = WSS_HW_CS4236B;
1380                                         break;
1381                                 default:
1382                                         snd_printk(KERN_WARNING
1383                                                 "unknown CS4236 chip "
1384                                                 "(enhanced version = 0x%x)\n",
1385                                                 id);
1386                                 }
1387                         } else if ((id & 0x1f) == 0x08) {       /* CS4237B */
1388                                 chip->hardware = WSS_HW_CS4237B;
1389                                 switch (id >> 5) {
1390                                 case 4:
1391                                 case 5:
1392                                 case 6:
1393                                 case 7:
1394                                         break;
1395                                 default:
1396                                         snd_printk(KERN_WARNING
1397                                                 "unknown CS4237B chip "
1398                                                 "(enhanced version = 0x%x)\n",
1399                                                 id);
1400                                 }
1401                         } else if ((id & 0x1f) == 0x09) {       /* CS4238B */
1402                                 chip->hardware = WSS_HW_CS4238B;
1403                                 switch (id >> 5) {
1404                                 case 5:
1405                                 case 6:
1406                                 case 7:
1407                                         break;
1408                                 default:
1409                                         snd_printk(KERN_WARNING
1410                                                 "unknown CS4238B chip "
1411                                                 "(enhanced version = 0x%x)\n",
1412                                                 id);
1413                                 }
1414                         } else if ((id & 0x1f) == 0x1e) {       /* CS4239 */
1415                                 chip->hardware = WSS_HW_CS4239;
1416                                 switch (id >> 5) {
1417                                 case 4:
1418                                 case 5:
1419                                 case 6:
1420                                         break;
1421                                 default:
1422                                         snd_printk(KERN_WARNING
1423                                                 "unknown CS4239 chip "
1424                                                 "(enhanced version = 0x%x)\n",
1425                                                 id);
1426                                 }
1427                         } else {
1428                                 snd_printk(KERN_WARNING
1429                                            "unknown CS4236/CS423xB chip "
1430                                            "(enhanced version = 0x%x)\n", id);
1431                         }
1432                 }
1433         }
1434         return 0;               /* all things are ok.. */
1435 }
1436
1437 /*
1438
1439  */
1440
1441 static const struct snd_pcm_hardware snd_wss_playback =
1442 {
1443         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1444                                  SNDRV_PCM_INFO_MMAP_VALID |
1445                                  SNDRV_PCM_INFO_SYNC_START),
1446         .formats =              (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW | SNDRV_PCM_FMTBIT_IMA_ADPCM |
1447                                  SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE),
1448         .rates =                SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
1449         .rate_min =             5510,
1450         .rate_max =             48000,
1451         .channels_min =         1,
1452         .channels_max =         2,
1453         .buffer_bytes_max =     (128*1024),
1454         .period_bytes_min =     64,
1455         .period_bytes_max =     (128*1024),
1456         .periods_min =          1,
1457         .periods_max =          1024,
1458         .fifo_size =            0,
1459 };
1460
1461 static const struct snd_pcm_hardware snd_wss_capture =
1462 {
1463         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1464                                  SNDRV_PCM_INFO_MMAP_VALID |
1465                                  SNDRV_PCM_INFO_RESUME |
1466                                  SNDRV_PCM_INFO_SYNC_START),
1467         .formats =              (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW | SNDRV_PCM_FMTBIT_IMA_ADPCM |
1468                                  SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE),
1469         .rates =                SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
1470         .rate_min =             5510,
1471         .rate_max =             48000,
1472         .channels_min =         1,
1473         .channels_max =         2,
1474         .buffer_bytes_max =     (128*1024),
1475         .period_bytes_min =     64,
1476         .period_bytes_max =     (128*1024),
1477         .periods_min =          1,
1478         .periods_max =          1024,
1479         .fifo_size =            0,
1480 };
1481
1482 /*
1483
1484  */
1485
1486 static int snd_wss_playback_open(struct snd_pcm_substream *substream)
1487 {
1488         struct snd_wss *chip = snd_pcm_substream_chip(substream);
1489         struct snd_pcm_runtime *runtime = substream->runtime;
1490         int err;
1491
1492         runtime->hw = snd_wss_playback;
1493
1494         /* hardware limitation of older chipsets */
1495         if (chip->hardware & WSS_HW_AD1848_MASK)
1496                 runtime->hw.formats &= ~(SNDRV_PCM_FMTBIT_IMA_ADPCM |
1497                                          SNDRV_PCM_FMTBIT_S16_BE);
1498
1499         /* hardware bug in InterWave chipset */
1500         if (chip->hardware == WSS_HW_INTERWAVE && chip->dma1 > 3)
1501                 runtime->hw.formats &= ~SNDRV_PCM_FMTBIT_MU_LAW;
1502
1503         /* hardware limitation of cheap chips */
1504         if (chip->hardware == WSS_HW_CS4235 ||
1505             chip->hardware == WSS_HW_CS4239)
1506                 runtime->hw.formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE;
1507
1508         snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.buffer_bytes_max);
1509         snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.period_bytes_max);
1510
1511         if (chip->claim_dma) {
1512                 if ((err = chip->claim_dma(chip, chip->dma_private_data, chip->dma1)) < 0)
1513                         return err;
1514         }
1515
1516         err = snd_wss_open(chip, WSS_MODE_PLAY);
1517         if (err < 0) {
1518                 if (chip->release_dma)
1519                         chip->release_dma(chip, chip->dma_private_data, chip->dma1);
1520                 return err;
1521         }
1522         chip->playback_substream = substream;
1523         snd_pcm_set_sync(substream);
1524         chip->rate_constraint(runtime);
1525         return 0;
1526 }
1527
1528 static int snd_wss_capture_open(struct snd_pcm_substream *substream)
1529 {
1530         struct snd_wss *chip = snd_pcm_substream_chip(substream);
1531         struct snd_pcm_runtime *runtime = substream->runtime;
1532         int err;
1533
1534         runtime->hw = snd_wss_capture;
1535
1536         /* hardware limitation of older chipsets */
1537         if (chip->hardware & WSS_HW_AD1848_MASK)
1538                 runtime->hw.formats &= ~(SNDRV_PCM_FMTBIT_IMA_ADPCM |
1539                                          SNDRV_PCM_FMTBIT_S16_BE);
1540
1541         /* hardware limitation of cheap chips */
1542         if (chip->hardware == WSS_HW_CS4235 ||
1543             chip->hardware == WSS_HW_CS4239 ||
1544             chip->hardware == WSS_HW_OPTI93X)
1545                 runtime->hw.formats = SNDRV_PCM_FMTBIT_U8 |
1546                                       SNDRV_PCM_FMTBIT_S16_LE;
1547
1548         snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.buffer_bytes_max);
1549         snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.period_bytes_max);
1550
1551         if (chip->claim_dma) {
1552                 if ((err = chip->claim_dma(chip, chip->dma_private_data, chip->dma2)) < 0)
1553                         return err;
1554         }
1555
1556         err = snd_wss_open(chip, WSS_MODE_RECORD);
1557         if (err < 0) {
1558                 if (chip->release_dma)
1559                         chip->release_dma(chip, chip->dma_private_data, chip->dma2);
1560                 return err;
1561         }
1562         chip->capture_substream = substream;
1563         snd_pcm_set_sync(substream);
1564         chip->rate_constraint(runtime);
1565         return 0;
1566 }
1567
1568 static int snd_wss_playback_close(struct snd_pcm_substream *substream)
1569 {
1570         struct snd_wss *chip = snd_pcm_substream_chip(substream);
1571
1572         chip->playback_substream = NULL;
1573         snd_wss_close(chip, WSS_MODE_PLAY);
1574         return 0;
1575 }
1576
1577 static int snd_wss_capture_close(struct snd_pcm_substream *substream)
1578 {
1579         struct snd_wss *chip = snd_pcm_substream_chip(substream);
1580
1581         chip->capture_substream = NULL;
1582         snd_wss_close(chip, WSS_MODE_RECORD);
1583         return 0;
1584 }
1585
1586 static void snd_wss_thinkpad_twiddle(struct snd_wss *chip, int on)
1587 {
1588         int tmp;
1589
1590         if (!chip->thinkpad_flag)
1591                 return;
1592
1593         outb(0x1c, AD1848_THINKPAD_CTL_PORT1);
1594         tmp = inb(AD1848_THINKPAD_CTL_PORT2);
1595
1596         if (on)
1597                 /* turn it on */
1598                 tmp |= AD1848_THINKPAD_CS4248_ENABLE_BIT;
1599         else
1600                 /* turn it off */
1601                 tmp &= ~AD1848_THINKPAD_CS4248_ENABLE_BIT;
1602
1603         outb(tmp, AD1848_THINKPAD_CTL_PORT2);
1604 }
1605
1606 #ifdef CONFIG_PM
1607
1608 /* lowlevel suspend callback for CS4231 */
1609 static void snd_wss_suspend(struct snd_wss *chip)
1610 {
1611         int reg;
1612         unsigned long flags;
1613
1614         spin_lock_irqsave(&chip->reg_lock, flags);
1615         for (reg = 0; reg < 32; reg++)
1616                 chip->image[reg] = snd_wss_in(chip, reg);
1617         spin_unlock_irqrestore(&chip->reg_lock, flags);
1618         if (chip->thinkpad_flag)
1619                 snd_wss_thinkpad_twiddle(chip, 0);
1620 }
1621
1622 /* lowlevel resume callback for CS4231 */
1623 static void snd_wss_resume(struct snd_wss *chip)
1624 {
1625         int reg;
1626         unsigned long flags;
1627         /* int timeout; */
1628
1629         if (chip->thinkpad_flag)
1630                 snd_wss_thinkpad_twiddle(chip, 1);
1631         snd_wss_mce_up(chip);
1632         spin_lock_irqsave(&chip->reg_lock, flags);
1633         for (reg = 0; reg < 32; reg++) {
1634                 switch (reg) {
1635                 case CS4231_VERSION:
1636                         break;
1637                 default:
1638                         snd_wss_out(chip, reg, chip->image[reg]);
1639                         break;
1640                 }
1641         }
1642         /* Yamaha needs this to resume properly */
1643         if (chip->hardware == WSS_HW_OPL3SA2)
1644                 snd_wss_out(chip, CS4231_PLAYBK_FORMAT,
1645                             chip->image[CS4231_PLAYBK_FORMAT]);
1646         spin_unlock_irqrestore(&chip->reg_lock, flags);
1647 #if 1
1648         snd_wss_mce_down(chip);
1649 #else
1650         /* The following is a workaround to avoid freeze after resume on TP600E.
1651            This is the first half of copy of snd_wss_mce_down(), but doesn't
1652            include rescheduling.  -- iwai
1653            */
1654         snd_wss_busy_wait(chip);
1655         spin_lock_irqsave(&chip->reg_lock, flags);
1656         chip->mce_bit &= ~CS4231_MCE;
1657         timeout = wss_inb(chip, CS4231P(REGSEL));
1658         wss_outb(chip, CS4231P(REGSEL), chip->mce_bit | (timeout & 0x1f));
1659         spin_unlock_irqrestore(&chip->reg_lock, flags);
1660         if (timeout == 0x80)
1661                 snd_printk(KERN_ERR "down [0x%lx]: serious init problem "
1662                            "- codec still busy\n", chip->port);
1663         if ((timeout & CS4231_MCE) == 0 ||
1664             !(chip->hardware & (WSS_HW_CS4231_MASK | WSS_HW_CS4232_MASK))) {
1665                 return;
1666         }
1667         snd_wss_busy_wait(chip);
1668 #endif
1669 }
1670 #endif /* CONFIG_PM */
1671
1672 static int snd_wss_free(struct snd_wss *chip)
1673 {
1674         release_and_free_resource(chip->res_port);
1675         release_and_free_resource(chip->res_cport);
1676         if (chip->irq >= 0) {
1677                 disable_irq(chip->irq);
1678                 if (!(chip->hwshare & WSS_HWSHARE_IRQ))
1679                         free_irq(chip->irq, (void *) chip);
1680         }
1681         if (!(chip->hwshare & WSS_HWSHARE_DMA1) && chip->dma1 >= 0) {
1682                 snd_dma_disable(chip->dma1);
1683                 free_dma(chip->dma1);
1684         }
1685         if (!(chip->hwshare & WSS_HWSHARE_DMA2) &&
1686             chip->dma2 >= 0 && chip->dma2 != chip->dma1) {
1687                 snd_dma_disable(chip->dma2);
1688                 free_dma(chip->dma2);
1689         }
1690         if (chip->timer)
1691                 snd_device_free(chip->card, chip->timer);
1692         kfree(chip);
1693         return 0;
1694 }
1695
1696 static int snd_wss_dev_free(struct snd_device *device)
1697 {
1698         struct snd_wss *chip = device->device_data;
1699         return snd_wss_free(chip);
1700 }
1701
1702 const char *snd_wss_chip_id(struct snd_wss *chip)
1703 {
1704         switch (chip->hardware) {
1705         case WSS_HW_CS4231:
1706                 return "CS4231";
1707         case WSS_HW_CS4231A:
1708                 return "CS4231A";
1709         case WSS_HW_CS4232:
1710                 return "CS4232";
1711         case WSS_HW_CS4232A:
1712                 return "CS4232A";
1713         case WSS_HW_CS4235:
1714                 return "CS4235";
1715         case WSS_HW_CS4236:
1716                 return "CS4236";
1717         case WSS_HW_CS4236B:
1718                 return "CS4236B";
1719         case WSS_HW_CS4237B:
1720                 return "CS4237B";
1721         case WSS_HW_CS4238B:
1722                 return "CS4238B";
1723         case WSS_HW_CS4239:
1724                 return "CS4239";
1725         case WSS_HW_INTERWAVE:
1726                 return "AMD InterWave";
1727         case WSS_HW_OPL3SA2:
1728                 return chip->card->shortname;
1729         case WSS_HW_AD1845:
1730                 return "AD1845";
1731         case WSS_HW_OPTI93X:
1732                 return "OPTi 93x";
1733         case WSS_HW_AD1847:
1734                 return "AD1847";
1735         case WSS_HW_AD1848:
1736                 return "AD1848";
1737         case WSS_HW_CS4248:
1738                 return "CS4248";
1739         case WSS_HW_CMI8330:
1740                 return "CMI8330/C3D";
1741         default:
1742                 return "???";
1743         }
1744 }
1745 EXPORT_SYMBOL(snd_wss_chip_id);
1746
1747 static int snd_wss_new(struct snd_card *card,
1748                           unsigned short hardware,
1749                           unsigned short hwshare,
1750                           struct snd_wss **rchip)
1751 {
1752         struct snd_wss *chip;
1753
1754         *rchip = NULL;
1755         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1756         if (chip == NULL)
1757                 return -ENOMEM;
1758         chip->hardware = hardware;
1759         chip->hwshare = hwshare;
1760
1761         spin_lock_init(&chip->reg_lock);
1762         mutex_init(&chip->mce_mutex);
1763         mutex_init(&chip->open_mutex);
1764         chip->card = card;
1765         chip->rate_constraint = snd_wss_xrate;
1766         chip->set_playback_format = snd_wss_playback_format;
1767         chip->set_capture_format = snd_wss_capture_format;
1768         if (chip->hardware == WSS_HW_OPTI93X)
1769                 memcpy(&chip->image, &snd_opti93x_original_image,
1770                        sizeof(snd_opti93x_original_image));
1771         else
1772                 memcpy(&chip->image, &snd_wss_original_image,
1773                        sizeof(snd_wss_original_image));
1774         if (chip->hardware & WSS_HW_AD1848_MASK) {
1775                 chip->image[CS4231_PIN_CTRL] = 0;
1776                 chip->image[CS4231_TEST_INIT] = 0;
1777         }
1778
1779         *rchip = chip;
1780         return 0;
1781 }
1782
1783 int snd_wss_create(struct snd_card *card,
1784                       unsigned long port,
1785                       unsigned long cport,
1786                       int irq, int dma1, int dma2,
1787                       unsigned short hardware,
1788                       unsigned short hwshare,
1789                       struct snd_wss **rchip)
1790 {
1791         static struct snd_device_ops ops = {
1792                 .dev_free =     snd_wss_dev_free,
1793         };
1794         struct snd_wss *chip;
1795         int err;
1796
1797         err = snd_wss_new(card, hardware, hwshare, &chip);
1798         if (err < 0)
1799                 return err;
1800
1801         chip->irq = -1;
1802         chip->dma1 = -1;
1803         chip->dma2 = -1;
1804
1805         chip->res_port = request_region(port, 4, "WSS");
1806         if (!chip->res_port) {
1807                 snd_printk(KERN_ERR "wss: can't grab port 0x%lx\n", port);
1808                 snd_wss_free(chip);
1809                 return -EBUSY;
1810         }
1811         chip->port = port;
1812         if ((long)cport >= 0) {
1813                 chip->res_cport = request_region(cport, 8, "CS4232 Control");
1814                 if (!chip->res_cport) {
1815                         snd_printk(KERN_ERR
1816                                 "wss: can't grab control port 0x%lx\n", cport);
1817                         snd_wss_free(chip);
1818                         return -ENODEV;
1819                 }
1820         }
1821         chip->cport = cport;
1822         if (!(hwshare & WSS_HWSHARE_IRQ))
1823                 if (request_irq(irq, snd_wss_interrupt, 0,
1824                                 "WSS", (void *) chip)) {
1825                         snd_printk(KERN_ERR "wss: can't grab IRQ %d\n", irq);
1826                         snd_wss_free(chip);
1827                         return -EBUSY;
1828                 }
1829         chip->irq = irq;
1830         if (!(hwshare & WSS_HWSHARE_DMA1) && request_dma(dma1, "WSS - 1")) {
1831                 snd_printk(KERN_ERR "wss: can't grab DMA1 %d\n", dma1);
1832                 snd_wss_free(chip);
1833                 return -EBUSY;
1834         }
1835         chip->dma1 = dma1;
1836         if (!(hwshare & WSS_HWSHARE_DMA2) && dma1 != dma2 &&
1837               dma2 >= 0 && request_dma(dma2, "WSS - 2")) {
1838                 snd_printk(KERN_ERR "wss: can't grab DMA2 %d\n", dma2);
1839                 snd_wss_free(chip);
1840                 return -EBUSY;
1841         }
1842         if (dma1 == dma2 || dma2 < 0) {
1843                 chip->single_dma = 1;
1844                 chip->dma2 = chip->dma1;
1845         } else
1846                 chip->dma2 = dma2;
1847
1848         if (hardware == WSS_HW_THINKPAD) {
1849                 chip->thinkpad_flag = 1;
1850                 chip->hardware = WSS_HW_DETECT; /* reset */
1851                 snd_wss_thinkpad_twiddle(chip, 1);
1852         }
1853
1854         /* global setup */
1855         if (snd_wss_probe(chip) < 0) {
1856                 snd_wss_free(chip);
1857                 return -ENODEV;
1858         }
1859         snd_wss_init(chip);
1860
1861 #if 0
1862         if (chip->hardware & WSS_HW_CS4232_MASK) {
1863                 if (chip->res_cport == NULL)
1864                         snd_printk(KERN_ERR "CS4232 control port features are "
1865                                    "not accessible\n");
1866         }
1867 #endif
1868
1869         /* Register device */
1870         err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1871         if (err < 0) {
1872                 snd_wss_free(chip);
1873                 return err;
1874         }
1875
1876 #ifdef CONFIG_PM
1877         /* Power Management */
1878         chip->suspend = snd_wss_suspend;
1879         chip->resume = snd_wss_resume;
1880 #endif
1881
1882         *rchip = chip;
1883         return 0;
1884 }
1885 EXPORT_SYMBOL(snd_wss_create);
1886
1887 static const struct snd_pcm_ops snd_wss_playback_ops = {
1888         .open =         snd_wss_playback_open,
1889         .close =        snd_wss_playback_close,
1890         .ioctl =        snd_pcm_lib_ioctl,
1891         .hw_params =    snd_wss_playback_hw_params,
1892         .hw_free =      snd_wss_playback_hw_free,
1893         .prepare =      snd_wss_playback_prepare,
1894         .trigger =      snd_wss_trigger,
1895         .pointer =      snd_wss_playback_pointer,
1896 };
1897
1898 static const struct snd_pcm_ops snd_wss_capture_ops = {
1899         .open =         snd_wss_capture_open,
1900         .close =        snd_wss_capture_close,
1901         .ioctl =        snd_pcm_lib_ioctl,
1902         .hw_params =    snd_wss_capture_hw_params,
1903         .hw_free =      snd_wss_capture_hw_free,
1904         .prepare =      snd_wss_capture_prepare,
1905         .trigger =      snd_wss_trigger,
1906         .pointer =      snd_wss_capture_pointer,
1907 };
1908
1909 int snd_wss_pcm(struct snd_wss *chip, int device)
1910 {
1911         struct snd_pcm *pcm;
1912         int err;
1913
1914         err = snd_pcm_new(chip->card, "WSS", device, 1, 1, &pcm);
1915         if (err < 0)
1916                 return err;
1917
1918         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_wss_playback_ops);
1919         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_wss_capture_ops);
1920
1921         /* global setup */
1922         pcm->private_data = chip;
1923         pcm->info_flags = 0;
1924         if (chip->single_dma)
1925                 pcm->info_flags |= SNDRV_PCM_INFO_HALF_DUPLEX;
1926         if (chip->hardware != WSS_HW_INTERWAVE)
1927                 pcm->info_flags |= SNDRV_PCM_INFO_JOINT_DUPLEX;
1928         strcpy(pcm->name, snd_wss_chip_id(chip));
1929
1930         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1931                                               chip->card->dev,
1932                                               64*1024, chip->dma1 > 3 || chip->dma2 > 3 ? 128*1024 : 64*1024);
1933
1934         chip->pcm = pcm;
1935         return 0;
1936 }
1937 EXPORT_SYMBOL(snd_wss_pcm);
1938
1939 static void snd_wss_timer_free(struct snd_timer *timer)
1940 {
1941         struct snd_wss *chip = timer->private_data;
1942         chip->timer = NULL;
1943 }
1944
1945 int snd_wss_timer(struct snd_wss *chip, int device)
1946 {
1947         struct snd_timer *timer;
1948         struct snd_timer_id tid;
1949         int err;
1950
1951         /* Timer initialization */
1952         tid.dev_class = SNDRV_TIMER_CLASS_CARD;
1953         tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE;
1954         tid.card = chip->card->number;
1955         tid.device = device;
1956         tid.subdevice = 0;
1957         if ((err = snd_timer_new(chip->card, "CS4231", &tid, &timer)) < 0)
1958                 return err;
1959         strcpy(timer->name, snd_wss_chip_id(chip));
1960         timer->private_data = chip;
1961         timer->private_free = snd_wss_timer_free;
1962         timer->hw = snd_wss_timer_table;
1963         chip->timer = timer;
1964         return 0;
1965 }
1966 EXPORT_SYMBOL(snd_wss_timer);
1967
1968 /*
1969  *  MIXER part
1970  */
1971
1972 static int snd_wss_info_mux(struct snd_kcontrol *kcontrol,
1973                             struct snd_ctl_elem_info *uinfo)
1974 {
1975         static const char * const texts[4] = {
1976                 "Line", "Aux", "Mic", "Mix"
1977         };
1978         static const char * const opl3sa_texts[4] = {
1979                 "Line", "CD", "Mic", "Mix"
1980         };
1981         static const char * const gusmax_texts[4] = {
1982                 "Line", "Synth", "Mic", "Mix"
1983         };
1984         const char * const *ptexts = texts;
1985         struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
1986
1987         if (snd_BUG_ON(!chip->card))
1988                 return -EINVAL;
1989         if (!strcmp(chip->card->driver, "GUS MAX"))
1990                 ptexts = gusmax_texts;
1991         switch (chip->hardware) {
1992         case WSS_HW_INTERWAVE:
1993                 ptexts = gusmax_texts;
1994                 break;
1995         case WSS_HW_OPTI93X:
1996         case WSS_HW_OPL3SA2:
1997                 ptexts = opl3sa_texts;
1998                 break;
1999         }
2000         return snd_ctl_enum_info(uinfo, 2, 4, ptexts);
2001 }
2002
2003 static int snd_wss_get_mux(struct snd_kcontrol *kcontrol,
2004                            struct snd_ctl_elem_value *ucontrol)
2005 {
2006         struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
2007         unsigned long flags;
2008
2009         spin_lock_irqsave(&chip->reg_lock, flags);
2010         ucontrol->value.enumerated.item[0] = (chip->image[CS4231_LEFT_INPUT] & CS4231_MIXS_ALL) >> 6;
2011         ucontrol->value.enumerated.item[1] = (chip->image[CS4231_RIGHT_INPUT] & CS4231_MIXS_ALL) >> 6;
2012         spin_unlock_irqrestore(&chip->reg_lock, flags);
2013         return 0;
2014 }
2015
2016 static int snd_wss_put_mux(struct snd_kcontrol *kcontrol,
2017                            struct snd_ctl_elem_value *ucontrol)
2018 {
2019         struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
2020         unsigned long flags;
2021         unsigned short left, right;
2022         int change;
2023
2024         if (ucontrol->value.enumerated.item[0] > 3 ||
2025             ucontrol->value.enumerated.item[1] > 3)
2026                 return -EINVAL;
2027         left = ucontrol->value.enumerated.item[0] << 6;
2028         right = ucontrol->value.enumerated.item[1] << 6;
2029         spin_lock_irqsave(&chip->reg_lock, flags);
2030         left = (chip->image[CS4231_LEFT_INPUT] & ~CS4231_MIXS_ALL) | left;
2031         right = (chip->image[CS4231_RIGHT_INPUT] & ~CS4231_MIXS_ALL) | right;
2032         change = left != chip->image[CS4231_LEFT_INPUT] ||
2033                  right != chip->image[CS4231_RIGHT_INPUT];
2034         snd_wss_out(chip, CS4231_LEFT_INPUT, left);
2035         snd_wss_out(chip, CS4231_RIGHT_INPUT, right);
2036         spin_unlock_irqrestore(&chip->reg_lock, flags);
2037         return change;
2038 }
2039
2040 int snd_wss_info_single(struct snd_kcontrol *kcontrol,
2041                         struct snd_ctl_elem_info *uinfo)
2042 {
2043         int mask = (kcontrol->private_value >> 16) & 0xff;
2044
2045         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
2046         uinfo->count = 1;
2047         uinfo->value.integer.min = 0;
2048         uinfo->value.integer.max = mask;
2049         return 0;
2050 }
2051 EXPORT_SYMBOL(snd_wss_info_single);
2052
2053 int snd_wss_get_single(struct snd_kcontrol *kcontrol,
2054                        struct snd_ctl_elem_value *ucontrol)
2055 {
2056         struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
2057         unsigned long flags;
2058         int reg = kcontrol->private_value & 0xff;
2059         int shift = (kcontrol->private_value >> 8) & 0xff;
2060         int mask = (kcontrol->private_value >> 16) & 0xff;
2061         int invert = (kcontrol->private_value >> 24) & 0xff;
2062
2063         spin_lock_irqsave(&chip->reg_lock, flags);
2064         ucontrol->value.integer.value[0] = (chip->image[reg] >> shift) & mask;
2065         spin_unlock_irqrestore(&chip->reg_lock, flags);
2066         if (invert)
2067                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
2068         return 0;
2069 }
2070 EXPORT_SYMBOL(snd_wss_get_single);
2071
2072 int snd_wss_put_single(struct snd_kcontrol *kcontrol,
2073                        struct snd_ctl_elem_value *ucontrol)
2074 {
2075         struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
2076         unsigned long flags;
2077         int reg = kcontrol->private_value & 0xff;
2078         int shift = (kcontrol->private_value >> 8) & 0xff;
2079         int mask = (kcontrol->private_value >> 16) & 0xff;
2080         int invert = (kcontrol->private_value >> 24) & 0xff;
2081         int change;
2082         unsigned short val;
2083
2084         val = (ucontrol->value.integer.value[0] & mask);
2085         if (invert)
2086                 val = mask - val;
2087         val <<= shift;
2088         spin_lock_irqsave(&chip->reg_lock, flags);
2089         val = (chip->image[reg] & ~(mask << shift)) | val;
2090         change = val != chip->image[reg];
2091         snd_wss_out(chip, reg, val);
2092         spin_unlock_irqrestore(&chip->reg_lock, flags);
2093         return change;
2094 }
2095 EXPORT_SYMBOL(snd_wss_put_single);
2096
2097 int snd_wss_info_double(struct snd_kcontrol *kcontrol,
2098                         struct snd_ctl_elem_info *uinfo)
2099 {
2100         int mask = (kcontrol->private_value >> 24) & 0xff;
2101
2102         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
2103         uinfo->count = 2;
2104         uinfo->value.integer.min = 0;
2105         uinfo->value.integer.max = mask;
2106         return 0;
2107 }
2108 EXPORT_SYMBOL(snd_wss_info_double);
2109
2110 int snd_wss_get_double(struct snd_kcontrol *kcontrol,
2111                        struct snd_ctl_elem_value *ucontrol)
2112 {
2113         struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
2114         unsigned long flags;
2115         int left_reg = kcontrol->private_value & 0xff;
2116         int right_reg = (kcontrol->private_value >> 8) & 0xff;
2117         int shift_left = (kcontrol->private_value >> 16) & 0x07;
2118         int shift_right = (kcontrol->private_value >> 19) & 0x07;
2119         int mask = (kcontrol->private_value >> 24) & 0xff;
2120         int invert = (kcontrol->private_value >> 22) & 1;
2121
2122         spin_lock_irqsave(&chip->reg_lock, flags);
2123         ucontrol->value.integer.value[0] = (chip->image[left_reg] >> shift_left) & mask;
2124         ucontrol->value.integer.value[1] = (chip->image[right_reg] >> shift_right) & mask;
2125         spin_unlock_irqrestore(&chip->reg_lock, flags);
2126         if (invert) {
2127                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
2128                 ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
2129         }
2130         return 0;
2131 }
2132 EXPORT_SYMBOL(snd_wss_get_double);
2133
2134 int snd_wss_put_double(struct snd_kcontrol *kcontrol,
2135                        struct snd_ctl_elem_value *ucontrol)
2136 {
2137         struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
2138         unsigned long flags;
2139         int left_reg = kcontrol->private_value & 0xff;
2140         int right_reg = (kcontrol->private_value >> 8) & 0xff;
2141         int shift_left = (kcontrol->private_value >> 16) & 0x07;
2142         int shift_right = (kcontrol->private_value >> 19) & 0x07;
2143         int mask = (kcontrol->private_value >> 24) & 0xff;
2144         int invert = (kcontrol->private_value >> 22) & 1;
2145         int change;
2146         unsigned short val1, val2;
2147
2148         val1 = ucontrol->value.integer.value[0] & mask;
2149         val2 = ucontrol->value.integer.value[1] & mask;
2150         if (invert) {
2151                 val1 = mask - val1;
2152                 val2 = mask - val2;
2153         }
2154         val1 <<= shift_left;
2155         val2 <<= shift_right;
2156         spin_lock_irqsave(&chip->reg_lock, flags);
2157         if (left_reg != right_reg) {
2158                 val1 = (chip->image[left_reg] & ~(mask << shift_left)) | val1;
2159                 val2 = (chip->image[right_reg] & ~(mask << shift_right)) | val2;
2160                 change = val1 != chip->image[left_reg] ||
2161                          val2 != chip->image[right_reg];
2162                 snd_wss_out(chip, left_reg, val1);
2163                 snd_wss_out(chip, right_reg, val2);
2164         } else {
2165                 mask = (mask << shift_left) | (mask << shift_right);
2166                 val1 = (chip->image[left_reg] & ~mask) | val1 | val2;
2167                 change = val1 != chip->image[left_reg];
2168                 snd_wss_out(chip, left_reg, val1);
2169         }
2170         spin_unlock_irqrestore(&chip->reg_lock, flags);
2171         return change;
2172 }
2173 EXPORT_SYMBOL(snd_wss_put_double);
2174
2175 static const DECLARE_TLV_DB_SCALE(db_scale_6bit, -9450, 150, 0);
2176 static const DECLARE_TLV_DB_SCALE(db_scale_5bit_12db_max, -3450, 150, 0);
2177 static const DECLARE_TLV_DB_SCALE(db_scale_rec_gain, 0, 150, 0);
2178 static const DECLARE_TLV_DB_SCALE(db_scale_4bit, -4500, 300, 0);
2179
2180 static struct snd_kcontrol_new snd_wss_controls[] = {
2181 WSS_DOUBLE("PCM Playback Switch", 0,
2182                 CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 7, 7, 1, 1),
2183 WSS_DOUBLE_TLV("PCM Playback Volume", 0,
2184                 CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 0, 0, 63, 1,
2185                 db_scale_6bit),
2186 WSS_DOUBLE("Aux Playback Switch", 0,
2187                 CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 7, 7, 1, 1),
2188 WSS_DOUBLE_TLV("Aux Playback Volume", 0,
2189                 CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 0, 0, 31, 1,
2190                 db_scale_5bit_12db_max),
2191 WSS_DOUBLE("Aux Playback Switch", 1,
2192                 CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 7, 7, 1, 1),
2193 WSS_DOUBLE_TLV("Aux Playback Volume", 1,
2194                 CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 0, 0, 31, 1,
2195                 db_scale_5bit_12db_max),
2196 WSS_DOUBLE_TLV("Capture Volume", 0, CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT,
2197                 0, 0, 15, 0, db_scale_rec_gain),
2198 {
2199         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2200         .name = "Capture Source",
2201         .info = snd_wss_info_mux,
2202         .get = snd_wss_get_mux,
2203         .put = snd_wss_put_mux,
2204 },
2205 WSS_DOUBLE("Mic Boost (+20dB)", 0,
2206                 CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 5, 5, 1, 0),
2207 WSS_SINGLE("Loopback Capture Switch", 0,
2208                 CS4231_LOOPBACK, 0, 1, 0),
2209 WSS_SINGLE_TLV("Loopback Capture Volume", 0, CS4231_LOOPBACK, 2, 63, 1,
2210                 db_scale_6bit),
2211 WSS_DOUBLE("Line Playback Switch", 0,
2212                 CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 7, 7, 1, 1),
2213 WSS_DOUBLE_TLV("Line Playback Volume", 0,
2214                 CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 0, 0, 31, 1,
2215                 db_scale_5bit_12db_max),
2216 WSS_SINGLE("Beep Playback Switch", 0,
2217                 CS4231_MONO_CTRL, 7, 1, 1),
2218 WSS_SINGLE_TLV("Beep Playback Volume", 0,
2219                 CS4231_MONO_CTRL, 0, 15, 1,
2220                 db_scale_4bit),
2221 WSS_SINGLE("Mono Output Playback Switch", 0,
2222                 CS4231_MONO_CTRL, 6, 1, 1),
2223 WSS_SINGLE("Beep Bypass Playback Switch", 0,
2224                 CS4231_MONO_CTRL, 5, 1, 0),
2225 };
2226
2227 int snd_wss_mixer(struct snd_wss *chip)
2228 {
2229         struct snd_card *card;
2230         unsigned int idx;
2231         int err;
2232         int count = ARRAY_SIZE(snd_wss_controls);
2233
2234         if (snd_BUG_ON(!chip || !chip->pcm))
2235                 return -EINVAL;
2236
2237         card = chip->card;
2238
2239         strcpy(card->mixername, chip->pcm->name);
2240
2241         /* Use only the first 11 entries on AD1848 */
2242         if (chip->hardware & WSS_HW_AD1848_MASK)
2243                 count = 11;
2244         /* There is no loopback on OPTI93X */
2245         else if (chip->hardware == WSS_HW_OPTI93X)
2246                 count = 9;
2247
2248         for (idx = 0; idx < count; idx++) {
2249                 err = snd_ctl_add(card,
2250                                 snd_ctl_new1(&snd_wss_controls[idx],
2251                                              chip));
2252                 if (err < 0)
2253                         return err;
2254         }
2255         return 0;
2256 }
2257 EXPORT_SYMBOL(snd_wss_mixer);
2258
2259 const struct snd_pcm_ops *snd_wss_get_pcm_ops(int direction)
2260 {
2261         return direction == SNDRV_PCM_STREAM_PLAYBACK ?
2262                 &snd_wss_playback_ops : &snd_wss_capture_ops;
2263 }
2264 EXPORT_SYMBOL(snd_wss_get_pcm_ops);