git.oblomov.eu Git - linux-2.6/blob - sound/isa/wss/wss_lib.c

   1 /*
   2  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
   3  *  Routines for control of CS4231(A)/CS4232/InterWave & compatible chips
   4  *
   5  *  Bugs:
   6  *     - sometimes record brokes playback with WSS portion of
   7  *       Yamaha OPL3-SA3 chip
   8  *     - CS4231 (GUS MAX) - still trouble with occasional noises
   9  *                        - broken initialization?
  10  *
  11  *   This program is free software; you can redistribute it and/or modify
  12  *   it under the terms of the GNU General Public License as published by
  13  *   the Free Software Foundation; either version 2 of the License, or
  14  *   (at your option) any later version.
  15  *
  16  *   This program is distributed in the hope that it will be useful,
  17  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  *   GNU General Public License for more details.
  20  *
  21  *   You should have received a copy of the GNU General Public License
  22  *   along with this program; if not, write to the Free Software
  23  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  24  *
  25  */
  26
  27 #include <linux/delay.h>
  28 #include <linux/pm.h>
  29 #include <linux/init.h>
  30 #include <linux/interrupt.h>
  31 #include <linux/slab.h>
  32 #include <linux/ioport.h>
  33 #include <sound/core.h>
  34 #include <sound/wss.h>
  35 #include <sound/pcm_params.h>
  36 #include <sound/tlv.h>
  37
  38 #include <asm/io.h>
  39 #include <asm/dma.h>
  40 #include <asm/irq.h>
  41
  42 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
  43 MODULE_DESCRIPTION("Routines for control of CS4231(A)/CS4232/InterWave & compatible chips");
  44 MODULE_LICENSE("GPL");
  45
  46 #if 0
  47 #define SNDRV_DEBUG_MCE
  48 #endif
  49
  50 /*
  51  *  Some variables
  52  */
  53
  54 static unsigned char freq_bits[14] = {
  55         /* 5510 */      0x00 | CS4231_XTAL2,
  56         /* 6620 */      0x0E | CS4231_XTAL2,
  57         /* 8000 */      0x00 | CS4231_XTAL1,
  58         /* 9600 */      0x0E | CS4231_XTAL1,
  59         /* 11025 */     0x02 | CS4231_XTAL2,
  60         /* 16000 */     0x02 | CS4231_XTAL1,
  61         /* 18900 */     0x04 | CS4231_XTAL2,
  62         /* 22050 */     0x06 | CS4231_XTAL2,
  63         /* 27042 */     0x04 | CS4231_XTAL1,
  64         /* 32000 */     0x06 | CS4231_XTAL1,
  65         /* 33075 */     0x0C | CS4231_XTAL2,
  66         /* 37800 */     0x08 | CS4231_XTAL2,
  67         /* 44100 */     0x0A | CS4231_XTAL2,
  68         /* 48000 */     0x0C | CS4231_XTAL1
  69 };
  70
  71 static unsigned int rates[14] = {
  72         5510, 6620, 8000, 9600, 11025, 16000, 18900, 22050,
  73         27042, 32000, 33075, 37800, 44100, 48000
  74 };
  75
  76 static struct snd_pcm_hw_constraint_list hw_constraints_rates = {
  77         .count = ARRAY_SIZE(rates),
  78         .list = rates,
  79         .mask = 0,
  80 };
  81
  82 static int snd_wss_xrate(struct snd_pcm_runtime *runtime)
  83 {
  84         return snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
  85                                           &hw_constraints_rates);
  86 }
  87
  88 static unsigned char snd_wss_original_image[32] =
  89 {
  90         0x00,                   /* 00/00 - lic */
  91         0x00,                   /* 01/01 - ric */
  92         0x9f,                   /* 02/02 - la1ic */
  93         0x9f,                   /* 03/03 - ra1ic */
  94         0x9f,                   /* 04/04 - la2ic */
  95         0x9f,                   /* 05/05 - ra2ic */
  96         0xbf,                   /* 06/06 - loc */
  97         0xbf,                   /* 07/07 - roc */
  98         0x20,                   /* 08/08 - pdfr */
  99         CS4231_AUTOCALIB,       /* 09/09 - ic */
 100         0x00,                   /* 0a/10 - pc */
 101         0x00,                   /* 0b/11 - ti */
 102         CS4231_MODE2,           /* 0c/12 - mi */
 103         0xfc,                   /* 0d/13 - lbc */
 104         0x00,                   /* 0e/14 - pbru */
 105         0x00,                   /* 0f/15 - pbrl */
 106         0x80,                   /* 10/16 - afei */
 107         0x01,                   /* 11/17 - afeii */
 108         0x9f,                   /* 12/18 - llic */
 109         0x9f,                   /* 13/19 - rlic */
 110         0x00,                   /* 14/20 - tlb */
 111         0x00,                   /* 15/21 - thb */
 112         0x00,                   /* 16/22 - la3mic/reserved */
 113         0x00,                   /* 17/23 - ra3mic/reserved */
 114         0x00,                   /* 18/24 - afs */
 115         0x00,                   /* 19/25 - lamoc/version */
 116         0xcf,                   /* 1a/26 - mioc */
 117         0x00,                   /* 1b/27 - ramoc/reserved */
 118         0x20,                   /* 1c/28 - cdfr */
 119         0x00,                   /* 1d/29 - res4 */
 120         0x00,                   /* 1e/30 - cbru */
 121         0x00,                   /* 1f/31 - cbrl */
 122 };
 123
 124 static unsigned char snd_opti93x_original_image[32] =
 125 {
 126         0x00,           /* 00/00 - l_mixout_outctrl */
 127         0x00,           /* 01/01 - r_mixout_outctrl */
 128         0x88,           /* 02/02 - l_cd_inctrl */
 129         0x88,           /* 03/03 - r_cd_inctrl */
 130         0x88,           /* 04/04 - l_a1/fm_inctrl */
 131         0x88,           /* 05/05 - r_a1/fm_inctrl */
 132         0x80,           /* 06/06 - l_dac_inctrl */
 133         0x80,           /* 07/07 - r_dac_inctrl */
 134         0x00,           /* 08/08 - ply_dataform_reg */
 135         0x00,           /* 09/09 - if_conf */
 136         0x00,           /* 0a/10 - pin_ctrl */
 137         0x00,           /* 0b/11 - err_init_reg */
 138         0x0a,           /* 0c/12 - id_reg */
 139         0x00,           /* 0d/13 - reserved */
 140         0x00,           /* 0e/14 - ply_upcount_reg */
 141         0x00,           /* 0f/15 - ply_lowcount_reg */
 142         0x88,           /* 10/16 - reserved/l_a1_inctrl */
 143         0x88,           /* 11/17 - reserved/r_a1_inctrl */
 144         0x88,           /* 12/18 - l_line_inctrl */
 145         0x88,           /* 13/19 - r_line_inctrl */
 146         0x88,           /* 14/20 - l_mic_inctrl */
 147         0x88,           /* 15/21 - r_mic_inctrl */
 148         0x80,           /* 16/22 - l_out_outctrl */
 149         0x80,           /* 17/23 - r_out_outctrl */
 150         0x00,           /* 18/24 - reserved */
 151         0x00,           /* 19/25 - reserved */
 152         0x00,           /* 1a/26 - reserved */
 153         0x00,           /* 1b/27 - reserved */
 154         0x00,           /* 1c/28 - cap_dataform_reg */
 155         0x00,           /* 1d/29 - reserved */
 156         0x00,           /* 1e/30 - cap_upcount_reg */
 157         0x00            /* 1f/31 - cap_lowcount_reg */
 158 };
 159
 160 /*
 161  *  Basic I/O functions
 162  */
 163
 164 static inline void wss_outb(struct snd_wss *chip, u8 offset, u8 val)
 165 {
 166         outb(val, chip->port + offset);
 167 }
 168
 169 static inline u8 wss_inb(struct snd_wss *chip, u8 offset)
 170 {
 171         return inb(chip->port + offset);
 172 }
 173
 174 static void snd_wss_wait(struct snd_wss *chip)
 175 {
 176         int timeout;
 177
 178         for (timeout = 250;
 179              timeout > 0 && (wss_inb(chip, CS4231P(REGSEL)) & CS4231_INIT);
 180              timeout--)
 181                 udelay(100);
 182 }
 183
 184 static void snd_wss_outm(struct snd_wss *chip, unsigned char reg,
 185                             unsigned char mask, unsigned char value)
 186 {
 187         unsigned char tmp = (chip->image[reg] & mask) | value;
 188
 189         snd_wss_wait(chip);
 190 #ifdef CONFIG_SND_DEBUG
 191         if (wss_inb(chip, CS4231P(REGSEL)) & CS4231_INIT)
 192                 snd_printk("outm: auto calibration time out - reg = 0x%x, value = 0x%x\n", reg, value);
 193 #endif
 194         chip->image[reg] = tmp;
 195         if (!chip->calibrate_mute) {
 196                 wss_outb(chip, CS4231P(REGSEL), chip->mce_bit | reg);
 197                 wmb();
 198                 wss_outb(chip, CS4231P(REG), tmp);
 199                 mb();
 200         }
 201 }
 202
 203 static void snd_wss_dout(struct snd_wss *chip, unsigned char reg,
 204                          unsigned char value)
 205 {
 206         int timeout;
 207
 208         for (timeout = 250;
 209              timeout > 0 && (wss_inb(chip, CS4231P(REGSEL)) & CS4231_INIT);
 210              timeout--)
 211                 udelay(10);
 212         wss_outb(chip, CS4231P(REGSEL), chip->mce_bit | reg);
 213         wss_outb(chip, CS4231P(REG), value);
 214         mb();
 215 }
 216
 217 void snd_wss_out(struct snd_wss *chip, unsigned char reg, unsigned char value)
 218 {
 219         snd_wss_wait(chip);
 220 #ifdef CONFIG_SND_DEBUG
 221         if (wss_inb(chip, CS4231P(REGSEL)) & CS4231_INIT)
 222                 snd_printk("out: auto calibration time out - reg = 0x%x, value = 0x%x\n", reg, value);
 223 #endif
 224         wss_outb(chip, CS4231P(REGSEL), chip->mce_bit | reg);
 225         wss_outb(chip, CS4231P(REG), value);
 226         chip->image[reg] = value;
 227         mb();
 228         snd_printdd("codec out - reg 0x%x = 0x%x\n",
 229                         chip->mce_bit | reg, value);
 230 }
 231 EXPORT_SYMBOL(snd_wss_out);
 232
 233 unsigned char snd_wss_in(struct snd_wss *chip, unsigned char reg)
 234 {
 235         snd_wss_wait(chip);
 236 #ifdef CONFIG_SND_DEBUG
 237         if (wss_inb(chip, CS4231P(REGSEL)) & CS4231_INIT)
 238                 snd_printk("in: auto calibration time out - reg = 0x%x\n", reg);
 239 #endif
 240         wss_outb(chip, CS4231P(REGSEL), chip->mce_bit | reg);
 241         mb();
 242         return wss_inb(chip, CS4231P(REG));
 243 }
 244 EXPORT_SYMBOL(snd_wss_in);
 245
 246 void snd_cs4236_ext_out(struct snd_wss *chip, unsigned char reg,
 247                         unsigned char val)
 248 {
 249         wss_outb(chip, CS4231P(REGSEL), chip->mce_bit | 0x17);
 250         wss_outb(chip, CS4231P(REG),
 251                  reg | (chip->image[CS4236_EXT_REG] & 0x01));
 252         wss_outb(chip, CS4231P(REG), val);
 253         chip->eimage[CS4236_REG(reg)] = val;
 254 #if 0
 255         printk("ext out : reg = 0x%x, val = 0x%x\n", reg, val);
 256 #endif
 257 }
 258 EXPORT_SYMBOL(snd_cs4236_ext_out);
 259
 260 unsigned char snd_cs4236_ext_in(struct snd_wss *chip, unsigned char reg)
 261 {
 262         wss_outb(chip, CS4231P(REGSEL), chip->mce_bit | 0x17);
 263         wss_outb(chip, CS4231P(REG),
 264                  reg | (chip->image[CS4236_EXT_REG] & 0x01));
 265 #if 1
 266         return wss_inb(chip, CS4231P(REG));
 267 #else
 268         {
 269                 unsigned char res;
 270                 res = wss_inb(chip, CS4231P(REG));
 271                 printk("ext in : reg = 0x%x, val = 0x%x\n", reg, res);
 272                 return res;
 273         }
 274 #endif
 275 }
 276 EXPORT_SYMBOL(snd_cs4236_ext_in);
 277
 278 #if 0
 279
 280 static void snd_wss_debug(struct snd_wss *chip)
 281 {
 282         printk(KERN_DEBUG
 283                 "CS4231 REGS:      INDEX = 0x%02x  "
 284                 "                 STATUS = 0x%02x\n",
 285                                         wss_inb(chip, CS4231P(REGSEL)),
 286                                         wss_inb(chip, CS4231P(STATUS)));
 287         printk(KERN_DEBUG
 288                 "  0x00: left input      = 0x%02x  "
 289                 "  0x10: alt 1 (CFIG 2)  = 0x%02x\n",
 290                                         snd_wss_in(chip, 0x00),
 291                                         snd_wss_in(chip, 0x10));
 292         printk(KERN_DEBUG
 293                 "  0x01: right input     = 0x%02x  "
 294                 "  0x11: alt 2 (CFIG 3)  = 0x%02x\n",
 295                                         snd_wss_in(chip, 0x01),
 296                                         snd_wss_in(chip, 0x11));
 297         printk(KERN_DEBUG
 298                 "  0x02: GF1 left input  = 0x%02x  "
 299                 "  0x12: left line in    = 0x%02x\n",
 300                                         snd_wss_in(chip, 0x02),
 301                                         snd_wss_in(chip, 0x12));
 302         printk(KERN_DEBUG
 303                 "  0x03: GF1 right input = 0x%02x  "
 304                 "  0x13: right line in   = 0x%02x\n",
 305                                         snd_wss_in(chip, 0x03),
 306                                         snd_wss_in(chip, 0x13));
 307         printk(KERN_DEBUG
 308                 "  0x04: CD left input   = 0x%02x  "
 309                 "  0x14: timer low       = 0x%02x\n",
 310                                         snd_wss_in(chip, 0x04),
 311                                         snd_wss_in(chip, 0x14));
 312         printk(KERN_DEBUG
 313                 "  0x05: CD right input  = 0x%02x  "
 314                 "  0x15: timer high      = 0x%02x\n",
 315                                         snd_wss_in(chip, 0x05),
 316                                         snd_wss_in(chip, 0x15));
 317         printk(KERN_DEBUG
 318                 "  0x06: left output     = 0x%02x  "
 319                 "  0x16: left MIC (PnP)  = 0x%02x\n",
 320                                         snd_wss_in(chip, 0x06),
 321                                         snd_wss_in(chip, 0x16));
 322         printk(KERN_DEBUG
 323                 "  0x07: right output    = 0x%02x  "
 324                 "  0x17: right MIC (PnP) = 0x%02x\n",
 325                                         snd_wss_in(chip, 0x07),
 326                                         snd_wss_in(chip, 0x17));
 327         printk(KERN_DEBUG
 328                 "  0x08: playback format = 0x%02x  "
 329                 "  0x18: IRQ status      = 0x%02x\n",
 330                                         snd_wss_in(chip, 0x08),
 331                                         snd_wss_in(chip, 0x18));
 332         printk(KERN_DEBUG
 333                 "  0x09: iface (CFIG 1)  = 0x%02x  "
 334                 "  0x19: left line out   = 0x%02x\n",
 335                                         snd_wss_in(chip, 0x09),
 336                                         snd_wss_in(chip, 0x19));
 337         printk(KERN_DEBUG
 338                 "  0x0a: pin control     = 0x%02x  "
 339                 "  0x1a: mono control    = 0x%02x\n",
 340                                         snd_wss_in(chip, 0x0a),
 341                                         snd_wss_in(chip, 0x1a));
 342         printk(KERN_DEBUG
 343                 "  0x0b: init & status   = 0x%02x  "
 344                 "  0x1b: right line out  = 0x%02x\n",
 345                                         snd_wss_in(chip, 0x0b),
 346                                         snd_wss_in(chip, 0x1b));
 347         printk(KERN_DEBUG
 348                 "  0x0c: revision & mode = 0x%02x  "
 349                 "  0x1c: record format   = 0x%02x\n",
 350                                         snd_wss_in(chip, 0x0c),
 351                                         snd_wss_in(chip, 0x1c));
 352         printk(KERN_DEBUG
 353                 "  0x0d: loopback        = 0x%02x  "
 354                 "  0x1d: var freq (PnP)  = 0x%02x\n",
 355                                         snd_wss_in(chip, 0x0d),
 356                                         snd_wss_in(chip, 0x1d));
 357         printk(KERN_DEBUG
 358                 "  0x0e: ply upr count   = 0x%02x  "
 359                 "  0x1e: ply lwr count   = 0x%02x\n",
 360                                         snd_wss_in(chip, 0x0e),
 361                                         snd_wss_in(chip, 0x1e));
 362         printk(KERN_DEBUG
 363                 "  0x0f: rec upr count   = 0x%02x  "
 364                 "  0x1f: rec lwr count   = 0x%02x\n",
 365                                         snd_wss_in(chip, 0x0f),
 366                                         snd_wss_in(chip, 0x1f));
 367 }
 368
 369 #endif
 370
 371 /*
 372  *  CS4231 detection / MCE routines
 373  */
 374
 375 static void snd_wss_busy_wait(struct snd_wss *chip)
 376 {
 377         int timeout;
 378
 379         /* huh.. looks like this sequence is proper for CS4231A chip (GUS MAX) */
 380         for (timeout = 5; timeout > 0; timeout--)
 381                 wss_inb(chip, CS4231P(REGSEL));
 382         /* end of cleanup sequence */
 383         for (timeout = 25000;
 384              timeout > 0 && (wss_inb(chip, CS4231P(REGSEL)) & CS4231_INIT);
 385              timeout--)
 386                 udelay(10);
 387 }
 388
 389 void snd_wss_mce_up(struct snd_wss *chip)
 390 {
 391         unsigned long flags;
 392         int timeout;
 393
 394         snd_wss_wait(chip);
 395 #ifdef CONFIG_SND_DEBUG
 396         if (wss_inb(chip, CS4231P(REGSEL)) & CS4231_INIT)
 397                 snd_printk("mce_up - auto calibration time out (0)\n");
 398 #endif
 399         spin_lock_irqsave(&chip->reg_lock, flags);
 400         chip->mce_bit |= CS4231_MCE;
 401         timeout = wss_inb(chip, CS4231P(REGSEL));
 402         if (timeout == 0x80)
 403                 snd_printk("mce_up [0x%lx]: serious init problem - codec still busy\n", chip->port);
 404         if (!(timeout & CS4231_MCE))
 405                 wss_outb(chip, CS4231P(REGSEL),
 406                          chip->mce_bit | (timeout & 0x1f));
 407         spin_unlock_irqrestore(&chip->reg_lock, flags);
 408 }
 409 EXPORT_SYMBOL(snd_wss_mce_up);
 410
 411 void snd_wss_mce_down(struct snd_wss *chip)
 412 {
 413         unsigned long flags;
 414         unsigned long end_time;
 415         int timeout;
 416         int hw_mask = WSS_HW_CS4231_MASK | WSS_HW_CS4232_MASK | WSS_HW_AD1848;
 417
 418         snd_wss_busy_wait(chip);
 419
 420 #ifdef CONFIG_SND_DEBUG
 421         if (wss_inb(chip, CS4231P(REGSEL)) & CS4231_INIT)
 422                 snd_printk("mce_down [0x%lx] - auto calibration time out (0)\n", (long)CS4231P(REGSEL));
 423 #endif
 424         spin_lock_irqsave(&chip->reg_lock, flags);
 425         chip->mce_bit &= ~CS4231_MCE;
 426         timeout = wss_inb(chip, CS4231P(REGSEL));
 427         wss_outb(chip, CS4231P(REGSEL), chip->mce_bit | (timeout & 0x1f));
 428         spin_unlock_irqrestore(&chip->reg_lock, flags);
 429         if (timeout == 0x80)
 430                 snd_printk("mce_down [0x%lx]: serious init problem - codec still busy\n", chip->port);
 431         if ((timeout & CS4231_MCE) == 0 || !(chip->hardware & hw_mask))
 432                 return;
 433
 434         /*
 435          * Wait for (possible -- during init auto-calibration may not be set)
 436          * calibration process to start. Needs upto 5 sample periods on AD1848
 437          * which at the slowest possible rate of 5.5125 kHz means 907 us.
 438          */
 439         msleep(1);
 440
 441         snd_printdd("(1) jiffies = %lu\n", jiffies);
 442
 443         /* check condition up to 250 ms */
 444         end_time = jiffies + msecs_to_jiffies(250);
 445         while (snd_wss_in(chip, CS4231_TEST_INIT) &
 446                 CS4231_CALIB_IN_PROGRESS) {
 447
 448                 if (time_after(jiffies, end_time)) {
 449                         snd_printk(KERN_ERR "mce_down - "
 450                                         "auto calibration time out (2)\n");
 451                         return;
 452                 }
 453                 msleep(1);
 454         }
 455
 456         snd_printdd("(2) jiffies = %lu\n", jiffies);
 457
 458         /* check condition up to 100 ms */
 459         end_time = jiffies + msecs_to_jiffies(100);
 460         while (wss_inb(chip, CS4231P(REGSEL)) & CS4231_INIT) {
 461                 if (time_after(jiffies, end_time)) {
 462                         snd_printk(KERN_ERR "mce_down - auto calibration time out (3)\n");
 463                         return;
 464                 }
 465                 msleep(1);
 466         }
 467
 468         snd_printdd("(3) jiffies = %lu\n", jiffies);
 469         snd_printd("mce_down - exit = 0x%x\n", wss_inb(chip, CS4231P(REGSEL)));
 470 }
 471 EXPORT_SYMBOL(snd_wss_mce_down);
 472
 473 static unsigned int snd_wss_get_count(unsigned char format, unsigned int size)
 474 {
 475         switch (format & 0xe0) {
 476         case CS4231_LINEAR_16:
 477         case CS4231_LINEAR_16_BIG:
 478                 size >>= 1;
 479                 break;
 480         case CS4231_ADPCM_16:
 481                 return size >> 2;
 482         }
 483         if (format & CS4231_STEREO)
 484                 size >>= 1;
 485         return size;
 486 }
 487
 488 static int snd_wss_trigger(struct snd_pcm_substream *substream,
 489                            int cmd)
 490 {
 491         struct snd_wss *chip = snd_pcm_substream_chip(substream);
 492         int result = 0;
 493         unsigned int what;
 494         struct snd_pcm_substream *s;
 495         int do_start;
 496
 497         switch (cmd) {
 498         case SNDRV_PCM_TRIGGER_START:
 499         case SNDRV_PCM_TRIGGER_RESUME:
 500                 do_start = 1; break;
 501         case SNDRV_PCM_TRIGGER_STOP:
 502         case SNDRV_PCM_TRIGGER_SUSPEND:
 503                 do_start = 0; break;
 504         default:
 505                 return -EINVAL;
 506         }
 507
 508         what = 0;
 509         snd_pcm_group_for_each_entry(s, substream) {
 510                 if (s == chip->playback_substream) {
 511                         what |= CS4231_PLAYBACK_ENABLE;
 512                         snd_pcm_trigger_done(s, substream);
 513                 } else if (s == chip->capture_substream) {
 514                         what |= CS4231_RECORD_ENABLE;
 515                         snd_pcm_trigger_done(s, substream);
 516                 }
 517         }
 518         spin_lock(&chip->reg_lock);
 519         if (do_start) {
 520                 chip->image[CS4231_IFACE_CTRL] |= what;
 521                 if (chip->trigger)
 522                         chip->trigger(chip, what, 1);
 523         } else {
 524                 chip->image[CS4231_IFACE_CTRL] &= ~what;
 525                 if (chip->trigger)
 526                         chip->trigger(chip, what, 0);
 527         }
 528         snd_wss_out(chip, CS4231_IFACE_CTRL, chip->image[CS4231_IFACE_CTRL]);
 529         spin_unlock(&chip->reg_lock);
 530 #if 0
 531         snd_wss_debug(chip);
 532 #endif
 533         return result;
 534 }
 535
 536 /*
 537  *  CODEC I/O
 538  */
 539
 540 static unsigned char snd_wss_get_rate(unsigned int rate)
 541 {
 542         int i;
 543
 544         for (i = 0; i < ARRAY_SIZE(rates); i++)
 545                 if (rate == rates[i])
 546                         return freq_bits[i];
 547         // snd_BUG();
 548         return freq_bits[ARRAY_SIZE(rates) - 1];
 549 }
 550
 551 static unsigned char snd_wss_get_format(struct snd_wss *chip,
 552                                         int format,
 553                                         int channels)
 554 {
 555         unsigned char rformat;
 556
 557         rformat = CS4231_LINEAR_8;
 558         switch (format) {
 559         case SNDRV_PCM_FORMAT_MU_LAW:   rformat = CS4231_ULAW_8; break;
 560         case SNDRV_PCM_FORMAT_A_LAW:    rformat = CS4231_ALAW_8; break;
 561         case SNDRV_PCM_FORMAT_S16_LE:   rformat = CS4231_LINEAR_16; break;
 562         case SNDRV_PCM_FORMAT_S16_BE:   rformat = CS4231_LINEAR_16_BIG; break;
 563         case SNDRV_PCM_FORMAT_IMA_ADPCM:        rformat = CS4231_ADPCM_16; break;
 564         }
 565         if (channels > 1)
 566                 rformat |= CS4231_STEREO;
 567 #if 0
 568         snd_printk("get_format: 0x%x (mode=0x%x)\n", format, mode);
 569 #endif
 570         return rformat;
 571 }
 572
 573 static void snd_wss_calibrate_mute(struct snd_wss *chip, int mute)
 574 {
 575         unsigned long flags;
 576
 577         mute = mute ? 0x80 : 0;
 578         spin_lock_irqsave(&chip->reg_lock, flags);
 579         if (chip->calibrate_mute == mute) {
 580                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 581                 return;
 582         }
 583         if (!mute) {
 584                 snd_wss_dout(chip, CS4231_LEFT_INPUT,
 585                              chip->image[CS4231_LEFT_INPUT]);
 586                 snd_wss_dout(chip, CS4231_RIGHT_INPUT,
 587                              chip->image[CS4231_RIGHT_INPUT]);
 588                 snd_wss_dout(chip, CS4231_LOOPBACK,
 589                              chip->image[CS4231_LOOPBACK]);
 590         }
 591         snd_wss_dout(chip, CS4231_AUX1_LEFT_INPUT,
 592                      mute | chip->image[CS4231_AUX1_LEFT_INPUT]);
 593         snd_wss_dout(chip, CS4231_AUX1_RIGHT_INPUT,
 594                      mute | chip->image[CS4231_AUX1_RIGHT_INPUT]);
 595         snd_wss_dout(chip, CS4231_AUX2_LEFT_INPUT,
 596                      mute | chip->image[CS4231_AUX2_LEFT_INPUT]);
 597         snd_wss_dout(chip, CS4231_AUX2_RIGHT_INPUT,
 598                      mute | chip->image[CS4231_AUX2_RIGHT_INPUT]);
 599         snd_wss_dout(chip, CS4231_LEFT_OUTPUT,
 600                      mute | chip->image[CS4231_LEFT_OUTPUT]);
 601         snd_wss_dout(chip, CS4231_RIGHT_OUTPUT,
 602                      mute | chip->image[CS4231_RIGHT_OUTPUT]);
 603         if (!(chip->hardware & WSS_HW_AD1848_MASK)) {
 604                 snd_wss_dout(chip, CS4231_LEFT_LINE_IN,
 605                              mute | chip->image[CS4231_LEFT_LINE_IN]);
 606                 snd_wss_dout(chip, CS4231_RIGHT_LINE_IN,
 607                              mute | chip->image[CS4231_RIGHT_LINE_IN]);
 608                 snd_wss_dout(chip, CS4231_MONO_CTRL,
 609                              mute ? 0xc0 : chip->image[CS4231_MONO_CTRL]);
 610         }
 611         if (chip->hardware == WSS_HW_INTERWAVE) {
 612                 snd_wss_dout(chip, CS4231_LEFT_MIC_INPUT,
 613                              mute | chip->image[CS4231_LEFT_MIC_INPUT]);
 614                 snd_wss_dout(chip, CS4231_RIGHT_MIC_INPUT,
 615                              mute | chip->image[CS4231_RIGHT_MIC_INPUT]);
 616                 snd_wss_dout(chip, CS4231_LINE_LEFT_OUTPUT,
 617                              mute | chip->image[CS4231_LINE_LEFT_OUTPUT]);
 618                 snd_wss_dout(chip, CS4231_LINE_RIGHT_OUTPUT,
 619                              mute | chip->image[CS4231_LINE_RIGHT_OUTPUT]);
 620         }
 621         chip->calibrate_mute = mute;
 622         spin_unlock_irqrestore(&chip->reg_lock, flags);
 623 }
 624
 625 static void snd_wss_playback_format(struct snd_wss *chip,
 626                                        struct snd_pcm_hw_params *params,
 627                                        unsigned char pdfr)
 628 {
 629         unsigned long flags;
 630         int full_calib = 1;
 631
 632         mutex_lock(&chip->mce_mutex);
 633         snd_wss_calibrate_mute(chip, 1);
 634         if (chip->hardware == WSS_HW_CS4231A ||
 635             (chip->hardware & WSS_HW_CS4232_MASK)) {
 636                 spin_lock_irqsave(&chip->reg_lock, flags);
 637                 if ((chip->image[CS4231_PLAYBK_FORMAT] & 0x0f) == (pdfr & 0x0f)) {      /* rate is same? */
 638                         snd_wss_out(chip, CS4231_ALT_FEATURE_1,
 639                                     chip->image[CS4231_ALT_FEATURE_1] | 0x10);
 640                         chip->image[CS4231_PLAYBK_FORMAT] = pdfr;
 641                         snd_wss_out(chip, CS4231_PLAYBK_FORMAT,
 642                                     chip->image[CS4231_PLAYBK_FORMAT]);
 643                         snd_wss_out(chip, CS4231_ALT_FEATURE_1,
 644                                     chip->image[CS4231_ALT_FEATURE_1] &= ~0x10);
 645                         udelay(100); /* Fixes audible clicks at least on GUS MAX */
 646                         full_calib = 0;
 647                 }
 648                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 649         }
 650         if (full_calib) {
 651                 snd_wss_mce_up(chip);
 652                 spin_lock_irqsave(&chip->reg_lock, flags);
 653                 if (chip->hardware != WSS_HW_INTERWAVE && !chip->single_dma) {
 654                         if (chip->image[CS4231_IFACE_CTRL] & CS4231_RECORD_ENABLE)
 655                                 pdfr = (pdfr & 0xf0) |
 656                                        (chip->image[CS4231_REC_FORMAT] & 0x0f);
 657                 } else {
 658                         chip->image[CS4231_PLAYBK_FORMAT] = pdfr;
 659                 }
 660                 snd_wss_out(chip, CS4231_PLAYBK_FORMAT, pdfr);
 661                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 662                 if (chip->hardware == WSS_HW_OPL3SA2)
 663                         udelay(100);    /* this seems to help */
 664                 snd_wss_mce_down(chip);
 665         }
 666         snd_wss_calibrate_mute(chip, 0);
 667         mutex_unlock(&chip->mce_mutex);
 668 }
 669
 670 static void snd_wss_capture_format(struct snd_wss *chip,
 671                                    struct snd_pcm_hw_params *params,
 672                                    unsigned char cdfr)
 673 {
 674         unsigned long flags;
 675         int full_calib = 1;
 676
 677         mutex_lock(&chip->mce_mutex);
 678         snd_wss_calibrate_mute(chip, 1);
 679         if (chip->hardware == WSS_HW_CS4231A ||
 680             (chip->hardware & WSS_HW_CS4232_MASK)) {
 681                 spin_lock_irqsave(&chip->reg_lock, flags);
 682                 if ((chip->image[CS4231_PLAYBK_FORMAT] & 0x0f) == (cdfr & 0x0f) ||      /* rate is same? */
 683                     (chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE)) {
 684                         snd_wss_out(chip, CS4231_ALT_FEATURE_1,
 685                                 chip->image[CS4231_ALT_FEATURE_1] | 0x20);
 686                         snd_wss_out(chip, CS4231_REC_FORMAT,
 687                                 chip->image[CS4231_REC_FORMAT] = cdfr);
 688                         snd_wss_out(chip, CS4231_ALT_FEATURE_1,
 689                                 chip->image[CS4231_ALT_FEATURE_1] &= ~0x20);
 690                         full_calib = 0;
 691                 }
 692                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 693         }
 694         if (full_calib) {
 695                 snd_wss_mce_up(chip);
 696                 spin_lock_irqsave(&chip->reg_lock, flags);
 697                 if (chip->hardware != WSS_HW_INTERWAVE &&
 698                     !(chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE)) {
 699                         if (chip->single_dma)
 700                                 snd_wss_out(chip, CS4231_PLAYBK_FORMAT, cdfr);
 701                         else
 702                                 snd_wss_out(chip, CS4231_PLAYBK_FORMAT,
 703                                    (chip->image[CS4231_PLAYBK_FORMAT] & 0xf0) |
 704                                    (cdfr & 0x0f));
 705                         spin_unlock_irqrestore(&chip->reg_lock, flags);
 706                         snd_wss_mce_down(chip);
 707                         snd_wss_mce_up(chip);
 708                         spin_lock_irqsave(&chip->reg_lock, flags);
 709                 }
 710                 if (chip->hardware & WSS_HW_AD1848_MASK)
 711                         snd_wss_out(chip, CS4231_PLAYBK_FORMAT, cdfr);
 712                 else
 713                         snd_wss_out(chip, CS4231_REC_FORMAT, cdfr);
 714                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 715                 snd_wss_mce_down(chip);
 716         }
 717         snd_wss_calibrate_mute(chip, 0);
 718         mutex_unlock(&chip->mce_mutex);
 719 }
 720
 721 /*
 722  *  Timer interface
 723  */
 724
 725 static unsigned long snd_wss_timer_resolution(struct snd_timer *timer)
 726 {
 727         struct snd_wss *chip = snd_timer_chip(timer);
 728         if (chip->hardware & WSS_HW_CS4236B_MASK)
 729                 return 14467;
 730         else
 731                 return chip->image[CS4231_PLAYBK_FORMAT] & 1 ? 9969 : 9920;
 732 }
 733
 734 static int snd_wss_timer_start(struct snd_timer *timer)
 735 {
 736         unsigned long flags;
 737         unsigned int ticks;
 738         struct snd_wss *chip = snd_timer_chip(timer);
 739         spin_lock_irqsave(&chip->reg_lock, flags);
 740         ticks = timer->sticks;
 741         if ((chip->image[CS4231_ALT_FEATURE_1] & CS4231_TIMER_ENABLE) == 0 ||
 742             (unsigned char)(ticks >> 8) != chip->image[CS4231_TIMER_HIGH] ||
 743             (unsigned char)ticks != chip->image[CS4231_TIMER_LOW]) {
 744                 chip->image[CS4231_TIMER_HIGH] = (unsigned char) (ticks >> 8);
 745                 snd_wss_out(chip, CS4231_TIMER_HIGH,
 746                             chip->image[CS4231_TIMER_HIGH]);
 747                 chip->image[CS4231_TIMER_LOW] = (unsigned char) ticks;
 748                 snd_wss_out(chip, CS4231_TIMER_LOW,
 749                             chip->image[CS4231_TIMER_LOW]);
 750                 snd_wss_out(chip, CS4231_ALT_FEATURE_1,
 751                             chip->image[CS4231_ALT_FEATURE_1] |
 752                             CS4231_TIMER_ENABLE);
 753         }
 754         spin_unlock_irqrestore(&chip->reg_lock, flags);
 755         return 0;
 756 }
 757
 758 static int snd_wss_timer_stop(struct snd_timer *timer)
 759 {
 760         unsigned long flags;
 761         struct snd_wss *chip = snd_timer_chip(timer);
 762         spin_lock_irqsave(&chip->reg_lock, flags);
 763         chip->image[CS4231_ALT_FEATURE_1] &= ~CS4231_TIMER_ENABLE;
 764         snd_wss_out(chip, CS4231_ALT_FEATURE_1,
 765                     chip->image[CS4231_ALT_FEATURE_1]);
 766         spin_unlock_irqrestore(&chip->reg_lock, flags);
 767         return 0;
 768 }
 769
 770 static void snd_wss_init(struct snd_wss *chip)
 771 {
 772         unsigned long flags;
 773
 774         snd_wss_mce_down(chip);
 775
 776 #ifdef SNDRV_DEBUG_MCE
 777         snd_printk("init: (1)\n");
 778 #endif
 779         snd_wss_mce_up(chip);
 780         spin_lock_irqsave(&chip->reg_lock, flags);
 781         chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_PLAYBACK_ENABLE |
 782                                             CS4231_PLAYBACK_PIO |
 783                                             CS4231_RECORD_ENABLE |
 784                                             CS4231_RECORD_PIO |
 785                                             CS4231_CALIB_MODE);
 786         chip->image[CS4231_IFACE_CTRL] |= CS4231_AUTOCALIB;
 787         snd_wss_out(chip, CS4231_IFACE_CTRL, chip->image[CS4231_IFACE_CTRL]);
 788         spin_unlock_irqrestore(&chip->reg_lock, flags);
 789         snd_wss_mce_down(chip);
 790
 791 #ifdef SNDRV_DEBUG_MCE
 792         snd_printk("init: (2)\n");
 793 #endif
 794
 795         snd_wss_mce_up(chip);
 796         spin_lock_irqsave(&chip->reg_lock, flags);
 797         snd_wss_out(chip,
 798                     CS4231_ALT_FEATURE_1, chip->image[CS4231_ALT_FEATURE_1]);
 799         spin_unlock_irqrestore(&chip->reg_lock, flags);
 800         snd_wss_mce_down(chip);
 801
 802 #ifdef SNDRV_DEBUG_MCE
 803         snd_printk("init: (3) - afei = 0x%x\n",
 804                    chip->image[CS4231_ALT_FEATURE_1]);
 805 #endif
 806
 807         spin_lock_irqsave(&chip->reg_lock, flags);
 808         snd_wss_out(chip, CS4231_ALT_FEATURE_2,
 809                     chip->image[CS4231_ALT_FEATURE_2]);
 810         spin_unlock_irqrestore(&chip->reg_lock, flags);
 811
 812         snd_wss_mce_up(chip);
 813         spin_lock_irqsave(&chip->reg_lock, flags);
 814         snd_wss_out(chip, CS4231_PLAYBK_FORMAT,
 815                     chip->image[CS4231_PLAYBK_FORMAT]);
 816         spin_unlock_irqrestore(&chip->reg_lock, flags);
 817         snd_wss_mce_down(chip);
 818
 819 #ifdef SNDRV_DEBUG_MCE
 820         snd_printk("init: (4)\n");
 821 #endif
 822
 823         snd_wss_mce_up(chip);
 824         spin_lock_irqsave(&chip->reg_lock, flags);
 825         if (!(chip->hardware & WSS_HW_AD1848_MASK))
 826                 snd_wss_out(chip, CS4231_REC_FORMAT,
 827                             chip->image[CS4231_REC_FORMAT]);
 828         spin_unlock_irqrestore(&chip->reg_lock, flags);
 829         snd_wss_mce_down(chip);
 830
 831 #ifdef SNDRV_DEBUG_MCE
 832         snd_printk("init: (5)\n");
 833 #endif
 834 }
 835
 836 static int snd_wss_open(struct snd_wss *chip, unsigned int mode)
 837 {
 838         unsigned long flags;
 839
 840         mutex_lock(&chip->open_mutex);
 841         if ((chip->mode & mode) ||
 842             ((chip->mode & WSS_MODE_OPEN) && chip->single_dma)) {
 843                 mutex_unlock(&chip->open_mutex);
 844                 return -EAGAIN;
 845         }
 846         if (chip->mode & WSS_MODE_OPEN) {
 847                 chip->mode |= mode;
 848                 mutex_unlock(&chip->open_mutex);
 849                 return 0;
 850         }
 851         /* ok. now enable and ack CODEC IRQ */
 852         spin_lock_irqsave(&chip->reg_lock, flags);
 853         if (!(chip->hardware & WSS_HW_AD1848_MASK)) {
 854                 snd_wss_out(chip, CS4231_IRQ_STATUS,
 855                             CS4231_PLAYBACK_IRQ |
 856                             CS4231_RECORD_IRQ |
 857                             CS4231_TIMER_IRQ);
 858                 snd_wss_out(chip, CS4231_IRQ_STATUS, 0);
 859         }
 860         wss_outb(chip, CS4231P(STATUS), 0);     /* clear IRQ */
 861         wss_outb(chip, CS4231P(STATUS), 0);     /* clear IRQ */
 862         chip->image[CS4231_PIN_CTRL] |= CS4231_IRQ_ENABLE;
 863         snd_wss_out(chip, CS4231_PIN_CTRL, chip->image[CS4231_PIN_CTRL]);
 864         if (!(chip->hardware & WSS_HW_AD1848_MASK)) {
 865                 snd_wss_out(chip, CS4231_IRQ_STATUS,
 866                             CS4231_PLAYBACK_IRQ |
 867                             CS4231_RECORD_IRQ |
 868                             CS4231_TIMER_IRQ);
 869                 snd_wss_out(chip, CS4231_IRQ_STATUS, 0);
 870         }
 871         spin_unlock_irqrestore(&chip->reg_lock, flags);
 872
 873         chip->mode = mode;
 874         mutex_unlock(&chip->open_mutex);
 875         return 0;
 876 }
 877
 878 static void snd_wss_close(struct snd_wss *chip, unsigned int mode)
 879 {
 880         unsigned long flags;
 881
 882         mutex_lock(&chip->open_mutex);
 883         chip->mode &= ~mode;
 884         if (chip->mode & WSS_MODE_OPEN) {
 885                 mutex_unlock(&chip->open_mutex);
 886                 return;
 887         }
 888         snd_wss_calibrate_mute(chip, 1);
 889
 890         /* disable IRQ */
 891         spin_lock_irqsave(&chip->reg_lock, flags);
 892         if (!(chip->hardware & WSS_HW_AD1848_MASK))
 893                 snd_wss_out(chip, CS4231_IRQ_STATUS, 0);
 894         wss_outb(chip, CS4231P(STATUS), 0);     /* clear IRQ */
 895         wss_outb(chip, CS4231P(STATUS), 0);     /* clear IRQ */
 896         chip->image[CS4231_PIN_CTRL] &= ~CS4231_IRQ_ENABLE;
 897         snd_wss_out(chip, CS4231_PIN_CTRL, chip->image[CS4231_PIN_CTRL]);
 898
 899         /* now disable record & playback */
 900
 901         if (chip->image[CS4231_IFACE_CTRL] & (CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO |
 902                                                CS4231_RECORD_ENABLE | CS4231_RECORD_PIO)) {
 903                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 904                 snd_wss_mce_up(chip);
 905                 spin_lock_irqsave(&chip->reg_lock, flags);
 906                 chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO |
 907                                                      CS4231_RECORD_ENABLE | CS4231_RECORD_PIO);
 908                 snd_wss_out(chip, CS4231_IFACE_CTRL,
 909                             chip->image[CS4231_IFACE_CTRL]);
 910                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 911                 snd_wss_mce_down(chip);
 912                 spin_lock_irqsave(&chip->reg_lock, flags);
 913         }
 914
 915         /* clear IRQ again */
 916         if (!(chip->hardware & WSS_HW_AD1848_MASK))
 917                 snd_wss_out(chip, CS4231_IRQ_STATUS, 0);
 918         wss_outb(chip, CS4231P(STATUS), 0);     /* clear IRQ */
 919         wss_outb(chip, CS4231P(STATUS), 0);     /* clear IRQ */
 920         spin_unlock_irqrestore(&chip->reg_lock, flags);
 921
 922         snd_wss_calibrate_mute(chip, 0);
 923
 924         chip->mode = 0;
 925         mutex_unlock(&chip->open_mutex);
 926 }
 927
 928 /*
 929  *  timer open/close
 930  */
 931
 932 static int snd_wss_timer_open(struct snd_timer *timer)
 933 {
 934         struct snd_wss *chip = snd_timer_chip(timer);
 935         snd_wss_open(chip, WSS_MODE_TIMER);
 936         return 0;
 937 }
 938
 939 static int snd_wss_timer_close(struct snd_timer *timer)
 940 {
 941         struct snd_wss *chip = snd_timer_chip(timer);
 942         snd_wss_close(chip, WSS_MODE_TIMER);
 943         return 0;
 944 }
 945
 946 static struct snd_timer_hardware snd_wss_timer_table =
 947 {
 948         .flags =        SNDRV_TIMER_HW_AUTO,
 949         .resolution =   9945,
 950         .ticks =        65535,
 951         .open =         snd_wss_timer_open,
 952         .close =        snd_wss_timer_close,
 953         .c_resolution = snd_wss_timer_resolution,
 954         .start =        snd_wss_timer_start,
 955         .stop =         snd_wss_timer_stop,
 956 };
 957
 958 /*
 959  *  ok.. exported functions..
 960  */
 961
 962 static int snd_wss_playback_hw_params(struct snd_pcm_substream *substream,
 963                                          struct snd_pcm_hw_params *hw_params)
 964 {
 965         struct snd_wss *chip = snd_pcm_substream_chip(substream);
 966         unsigned char new_pdfr;
 967         int err;
 968
 969         if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
 970                 return err;
 971         new_pdfr = snd_wss_get_format(chip, params_format(hw_params),
 972                                 params_channels(hw_params)) |
 973                                 snd_wss_get_rate(params_rate(hw_params));
 974         chip->set_playback_format(chip, hw_params, new_pdfr);
 975         return 0;
 976 }
 977
 978 static int snd_wss_playback_hw_free(struct snd_pcm_substream *substream)
 979 {
 980         return snd_pcm_lib_free_pages(substream);
 981 }
 982
 983 static int snd_wss_playback_prepare(struct snd_pcm_substream *substream)
 984 {
 985         struct snd_wss *chip = snd_pcm_substream_chip(substream);
 986         struct snd_pcm_runtime *runtime = substream->runtime;
 987         unsigned long flags;
 988         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
 989         unsigned int count = snd_pcm_lib_period_bytes(substream);
 990
 991         spin_lock_irqsave(&chip->reg_lock, flags);
 992         chip->p_dma_size = size;
 993         chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO);
 994         snd_dma_program(chip->dma1, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT);
 995         count = snd_wss_get_count(chip->image[CS4231_PLAYBK_FORMAT], count) - 1;
 996         snd_wss_out(chip, CS4231_PLY_LWR_CNT, (unsigned char) count);
 997         snd_wss_out(chip, CS4231_PLY_UPR_CNT, (unsigned char) (count >> 8));
 998         spin_unlock_irqrestore(&chip->reg_lock, flags);
 999 #if 0
1000         snd_wss_debug(chip);
1001 #endif
1002         return 0;
1003 }
1004
1005 static int snd_wss_capture_hw_params(struct snd_pcm_substream *substream,
1006                                         struct snd_pcm_hw_params *hw_params)
1007 {
1008         struct snd_wss *chip = snd_pcm_substream_chip(substream);
1009         unsigned char new_cdfr;
1010         int err;
1011
1012         if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
1013                 return err;
1014         new_cdfr = snd_wss_get_format(chip, params_format(hw_params),
1015                            params_channels(hw_params)) |
1016                            snd_wss_get_rate(params_rate(hw_params));
1017         chip->set_capture_format(chip, hw_params, new_cdfr);
1018         return 0;
1019 }
1020
1021 static int snd_wss_capture_hw_free(struct snd_pcm_substream *substream)
1022 {
1023         return snd_pcm_lib_free_pages(substream);
1024 }
1025
1026 static int snd_wss_capture_prepare(struct snd_pcm_substream *substream)
1027 {
1028         struct snd_wss *chip = snd_pcm_substream_chip(substream);
1029         struct snd_pcm_runtime *runtime = substream->runtime;
1030         unsigned long flags;
1031         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
1032         unsigned int count = snd_pcm_lib_period_bytes(substream);
1033
1034         spin_lock_irqsave(&chip->reg_lock, flags);
1035         chip->c_dma_size = size;
1036         chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_RECORD_ENABLE | CS4231_RECORD_PIO);
1037         snd_dma_program(chip->dma2, runtime->dma_addr, size, DMA_MODE_READ | DMA_AUTOINIT);
1038         if (chip->hardware & WSS_HW_AD1848_MASK)
1039                 count = snd_wss_get_count(chip->image[CS4231_PLAYBK_FORMAT],
1040                                           count);
1041         else
1042                 count = snd_wss_get_count(chip->image[CS4231_REC_FORMAT],
1043                                           count);
1044         count--;
1045         if (chip->single_dma && chip->hardware != WSS_HW_INTERWAVE) {
1046                 snd_wss_out(chip, CS4231_PLY_LWR_CNT, (unsigned char) count);
1047                 snd_wss_out(chip, CS4231_PLY_UPR_CNT,
1048                             (unsigned char) (count >> 8));
1049         } else {
1050                 snd_wss_out(chip, CS4231_REC_LWR_CNT, (unsigned char) count);
1051                 snd_wss_out(chip, CS4231_REC_UPR_CNT,
1052                             (unsigned char) (count >> 8));
1053         }
1054         spin_unlock_irqrestore(&chip->reg_lock, flags);
1055         return 0;
1056 }
1057
1058 void snd_wss_overrange(struct snd_wss *chip)
1059 {
1060         unsigned long flags;
1061         unsigned char res;
1062
1063         spin_lock_irqsave(&chip->reg_lock, flags);
1064         res = snd_wss_in(chip, CS4231_TEST_INIT);
1065         spin_unlock_irqrestore(&chip->reg_lock, flags);
1066         if (res & (0x08 | 0x02))        /* detect overrange only above 0dB; may be user selectable? */
1067                 chip->capture_substream->runtime->overrange++;
1068 }
1069 EXPORT_SYMBOL(snd_wss_overrange);
1070
1071 irqreturn_t snd_wss_interrupt(int irq, void *dev_id)
1072 {
1073         struct snd_wss *chip = dev_id;
1074         unsigned char status;
1075
1076         if (chip->hardware & WSS_HW_AD1848_MASK)
1077                 /* pretend it was the only possible irq for AD1848 */
1078                 status = CS4231_PLAYBACK_IRQ;
1079         else
1080                 status = snd_wss_in(chip, CS4231_IRQ_STATUS);
1081         if (status & CS4231_TIMER_IRQ) {
1082                 if (chip->timer)
1083                         snd_timer_interrupt(chip->timer, chip->timer->sticks);
1084         }
1085         if (chip->single_dma && chip->hardware != WSS_HW_INTERWAVE) {
1086                 if (status & CS4231_PLAYBACK_IRQ) {
1087                         if (chip->mode & WSS_MODE_PLAY) {
1088                                 if (chip->playback_substream)
1089                                         snd_pcm_period_elapsed(chip->playback_substream);
1090                         }
1091                         if (chip->mode & WSS_MODE_RECORD) {
1092                                 if (chip->capture_substream) {
1093                                         snd_wss_overrange(chip);
1094                                         snd_pcm_period_elapsed(chip->capture_substream);
1095                                 }
1096                         }
1097                 }
1098         } else {
1099                 if (status & CS4231_PLAYBACK_IRQ) {
1100                         if (chip->playback_substream)
1101                                 snd_pcm_period_elapsed(chip->playback_substream);
1102                 }
1103                 if (status & CS4231_RECORD_IRQ) {
1104                         if (chip->capture_substream) {
1105                                 snd_wss_overrange(chip);
1106                                 snd_pcm_period_elapsed(chip->capture_substream);
1107                         }
1108                 }
1109         }
1110
1111         spin_lock(&chip->reg_lock);
1112         status = ~CS4231_ALL_IRQS | ~status;
1113         if (chip->hardware & WSS_HW_AD1848_MASK)
1114                 wss_outb(chip, CS4231P(STATUS), 0);
1115         else
1116                 snd_wss_outm(chip, CS4231_IRQ_STATUS, status, 0);
1117         spin_unlock(&chip->reg_lock);
1118         return IRQ_HANDLED;
1119 }
1120 EXPORT_SYMBOL(snd_wss_interrupt);
1121
1122 static snd_pcm_uframes_t snd_wss_playback_pointer(struct snd_pcm_substream *substream)
1123 {
1124         struct snd_wss *chip = snd_pcm_substream_chip(substream);
1125         size_t ptr;
1126
1127         if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE))
1128                 return 0;
1129         ptr = snd_dma_pointer(chip->dma1, chip->p_dma_size);
1130         return bytes_to_frames(substream->runtime, ptr);
1131 }
1132
1133 static snd_pcm_uframes_t snd_wss_capture_pointer(struct snd_pcm_substream *substream)
1134 {
1135         struct snd_wss *chip = snd_pcm_substream_chip(substream);
1136         size_t ptr;
1137
1138         if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_RECORD_ENABLE))
1139                 return 0;
1140         ptr = snd_dma_pointer(chip->dma2, chip->c_dma_size);
1141         return bytes_to_frames(substream->runtime, ptr);
1142 }
1143
1144 /*
1145
1146  */
1147
1148 static int snd_ad1848_probe(struct snd_wss *chip)
1149 {
1150         unsigned long timeout = jiffies + msecs_to_jiffies(1000);
1151         unsigned long flags;
1152         unsigned char r;
1153         unsigned short hardware = 0;
1154         int err = 0;
1155         int i;
1156
1157         while (wss_inb(chip, CS4231P(REGSEL)) & CS4231_INIT) {
1158                 if (time_after(jiffies, timeout))
1159                         return -ENODEV;
1160                 cond_resched();
1161         }
1162         spin_lock_irqsave(&chip->reg_lock, flags);
1163
1164         /* set CS423x MODE 1 */
1165         snd_wss_dout(chip, CS4231_MISC_INFO, 0);
1166
1167         snd_wss_dout(chip, CS4231_RIGHT_INPUT, 0x45); /* 0x55 & ~0x10 */
1168         r = snd_wss_in(chip, CS4231_RIGHT_INPUT);
1169         if (r != 0x45) {
1170                 /* RMGE always high on AD1847 */
1171                 if ((r & ~CS4231_ENABLE_MIC_GAIN) != 0x45) {
1172                         err = -ENODEV;
1173                         goto out;
1174                 }
1175                 hardware = WSS_HW_AD1847;
1176         } else {
1177                 snd_wss_dout(chip, CS4231_LEFT_INPUT,  0xaa);
1178                 r = snd_wss_in(chip, CS4231_LEFT_INPUT);
1179                 /* L/RMGE always low on AT2320 */
1180                 if ((r | CS4231_ENABLE_MIC_GAIN) != 0xaa) {
1181                         err = -ENODEV;
1182                         goto out;
1183                 }
1184         }
1185
1186         /* clear pending IRQ */
1187         wss_inb(chip, CS4231P(STATUS));
1188         wss_outb(chip, CS4231P(STATUS), 0);
1189         mb();
1190
1191         if ((chip->hardware & WSS_HW_TYPE_MASK) != WSS_HW_DETECT)
1192                 goto out;
1193
1194         if (hardware) {
1195                 chip->hardware = hardware;
1196                 goto out;
1197         }
1198
1199         r = snd_wss_in(chip, CS4231_MISC_INFO);
1200
1201         /* set CS423x MODE 2 */
1202         snd_wss_dout(chip, CS4231_MISC_INFO, CS4231_MODE2);
1203         for (i = 0; i < 16; i++) {
1204                 if (snd_wss_in(chip, i) != snd_wss_in(chip, 16 + i)) {
1205                         /* we have more than 16 registers: check ID */
1206                         if ((r & 0xf) != 0xa)
1207                                 goto out_mode;
1208                         /*
1209                          * on CMI8330, CS4231_VERSION is volume control and
1210                          * can be set to 0
1211                          */
1212                         snd_wss_dout(chip, CS4231_VERSION, 0);
1213                         r = snd_wss_in(chip, CS4231_VERSION) & 0xe7;
1214                         if (!r)
1215                                 chip->hardware = WSS_HW_CMI8330;
1216                         goto out_mode;
1217                 }
1218         }
1219         if (r & 0x80)
1220                 chip->hardware = WSS_HW_CS4248;
1221         else
1222                 chip->hardware = WSS_HW_AD1848;
1223 out_mode:
1224         snd_wss_dout(chip, CS4231_MISC_INFO, 0);
1225 out:
1226         spin_unlock_irqrestore(&chip->reg_lock, flags);
1227         return err;
1228 }
1229
1230 static int snd_wss_probe(struct snd_wss *chip)
1231 {
1232         unsigned long flags;
1233         int i, id, rev, regnum;
1234         unsigned char *ptr;
1235         unsigned int hw;
1236
1237         id = snd_ad1848_probe(chip);
1238         if (id < 0)
1239                 return id;
1240
1241         hw = chip->hardware;
1242         if ((hw & WSS_HW_TYPE_MASK) == WSS_HW_DETECT) {
1243                 for (i = 0; i < 50; i++) {
1244                         mb();
1245                         if (wss_inb(chip, CS4231P(REGSEL)) & CS4231_INIT)
1246                                 msleep(2);
1247                         else {
1248                                 spin_lock_irqsave(&chip->reg_lock, flags);
1249                                 snd_wss_out(chip, CS4231_MISC_INFO,
1250                                             CS4231_MODE2);
1251                                 id = snd_wss_in(chip, CS4231_MISC_INFO) & 0x0f;
1252                                 spin_unlock_irqrestore(&chip->reg_lock, flags);
1253                                 if (id == 0x0a)
1254                                         break;  /* this is valid value */
1255                         }
1256                 }
1257                 snd_printdd("wss: port = 0x%lx, id = 0x%x\n", chip->port, id);
1258                 if (id != 0x0a)
1259                         return -ENODEV; /* no valid device found */
1260
1261                 rev = snd_wss_in(chip, CS4231_VERSION) & 0xe7;
1262                 snd_printdd("CS4231: VERSION (I25) = 0x%x\n", rev);
1263                 if (rev == 0x80) {
1264                         unsigned char tmp = snd_wss_in(chip, 23);
1265                         snd_wss_out(chip, 23, ~tmp);
1266                         if (snd_wss_in(chip, 23) != tmp)
1267                                 chip->hardware = WSS_HW_AD1845;
1268                         else
1269                                 chip->hardware = WSS_HW_CS4231;
1270                 } else if (rev == 0xa0) {
1271                         chip->hardware = WSS_HW_CS4231A;
1272                 } else if (rev == 0xa2) {
1273                         chip->hardware = WSS_HW_CS4232;
1274                 } else if (rev == 0xb2) {
1275                         chip->hardware = WSS_HW_CS4232A;
1276                 } else if (rev == 0x83) {
1277                         chip->hardware = WSS_HW_CS4236;
1278                 } else if (rev == 0x03) {
1279                         chip->hardware = WSS_HW_CS4236B;
1280                 } else {
1281                         snd_printk("unknown CS chip with version 0x%x\n", rev);
1282                         return -ENODEV;         /* unknown CS4231 chip? */
1283                 }
1284         }
1285         spin_lock_irqsave(&chip->reg_lock, flags);
1286         wss_inb(chip, CS4231P(STATUS)); /* clear any pendings IRQ */
1287         wss_outb(chip, CS4231P(STATUS), 0);
1288         mb();
1289         spin_unlock_irqrestore(&chip->reg_lock, flags);
1290
1291         if (!(chip->hardware & WSS_HW_AD1848_MASK))
1292                 chip->image[CS4231_MISC_INFO] = CS4231_MODE2;
1293         switch (chip->hardware) {
1294         case WSS_HW_INTERWAVE:
1295                 chip->image[CS4231_MISC_INFO] = CS4231_IW_MODE3;
1296                 break;
1297         case WSS_HW_CS4235:
1298         case WSS_HW_CS4236B:
1299         case WSS_HW_CS4237B:
1300         case WSS_HW_CS4238B:
1301         case WSS_HW_CS4239:
1302                 if (hw == WSS_HW_DETECT3)
1303                         chip->image[CS4231_MISC_INFO] = CS4231_4236_MODE3;
1304                 else
1305                         chip->hardware = WSS_HW_CS4236;
1306                 break;
1307         }
1308
1309         chip->image[CS4231_IFACE_CTRL] =
1310             (chip->image[CS4231_IFACE_CTRL] & ~CS4231_SINGLE_DMA) |
1311             (chip->single_dma ? CS4231_SINGLE_DMA : 0);
1312         if (chip->hardware != WSS_HW_OPTI93X) {
1313                 chip->image[CS4231_ALT_FEATURE_1] = 0x80;
1314                 chip->image[CS4231_ALT_FEATURE_2] =
1315                         chip->hardware == WSS_HW_INTERWAVE ? 0xc2 : 0x01;
1316         }
1317         ptr = (unsigned char *) &chip->image;
1318         regnum = (chip->hardware & WSS_HW_AD1848_MASK) ? 16 : 32;
1319         snd_wss_mce_down(chip);
1320         spin_lock_irqsave(&chip->reg_lock, flags);
1321         for (i = 0; i < regnum; i++)    /* ok.. fill all registers */
1322                 snd_wss_out(chip, i, *ptr++);
1323         spin_unlock_irqrestore(&chip->reg_lock, flags);
1324         snd_wss_mce_up(chip);
1325         snd_wss_mce_down(chip);
1326
1327         mdelay(2);
1328
1329         /* ok.. try check hardware version for CS4236+ chips */
1330         if ((hw & WSS_HW_TYPE_MASK) == WSS_HW_DETECT) {
1331                 if (chip->hardware == WSS_HW_CS4236B) {
1332                         rev = snd_cs4236_ext_in(chip, CS4236_VERSION);
1333                         snd_cs4236_ext_out(chip, CS4236_VERSION, 0xff);
1334                         id = snd_cs4236_ext_in(chip, CS4236_VERSION);
1335                         snd_cs4236_ext_out(chip, CS4236_VERSION, rev);
1336                         snd_printdd("CS4231: ext version; rev = 0x%x, id = 0x%x\n", rev, id);
1337                         if ((id & 0x1f) == 0x1d) {      /* CS4235 */
1338                                 chip->hardware = WSS_HW_CS4235;
1339                                 switch (id >> 5) {
1340                                 case 4:
1341                                 case 5:
1342                                 case 6:
1343                                         break;
1344                                 default:
1345                                         snd_printk("unknown CS4235 chip (enhanced version = 0x%x)\n", id);
1346                                 }
1347                         } else if ((id & 0x1f) == 0x0b) {       /* CS4236/B */
1348                                 switch (id >> 5) {
1349                                 case 4:
1350                                 case 5:
1351                                 case 6:
1352                                 case 7:
1353                                         chip->hardware = WSS_HW_CS4236B;
1354                                         break;
1355                                 default:
1356                                         snd_printk("unknown CS4236 chip (enhanced version = 0x%x)\n", id);
1357                                 }
1358                         } else if ((id & 0x1f) == 0x08) {       /* CS4237B */
1359                                 chip->hardware = WSS_HW_CS4237B;
1360                                 switch (id >> 5) {
1361                                 case 4:
1362                                 case 5:
1363                                 case 6:
1364                                 case 7:
1365                                         break;
1366                                 default:
1367                                         snd_printk("unknown CS4237B chip (enhanced version = 0x%x)\n", id);
1368                                 }
1369                         } else if ((id & 0x1f) == 0x09) {       /* CS4238B */
1370                                 chip->hardware = WSS_HW_CS4238B;
1371                                 switch (id >> 5) {
1372                                 case 5:
1373                                 case 6:
1374                                 case 7:
1375                                         break;
1376                                 default:
1377                                         snd_printk("unknown CS4238B chip (enhanced version = 0x%x)\n", id);
1378                                 }
1379                         } else if ((id & 0x1f) == 0x1e) {       /* CS4239 */
1380                                 chip->hardware = WSS_HW_CS4239;
1381                                 switch (id >> 5) {
1382                                 case 4:
1383                                 case 5:
1384                                 case 6:
1385                                         break;
1386                                 default:
1387                                         snd_printk("unknown CS4239 chip (enhanced version = 0x%x)\n", id);
1388                                 }
1389                         } else {
1390                                 snd_printk("unknown CS4236/CS423xB chip (enhanced version = 0x%x)\n", id);
1391                         }
1392                 }
1393         }
1394         return 0;               /* all things are ok.. */
1395 }
1396
1397 /*
1398
1399  */
1400
1401 static struct snd_pcm_hardware snd_wss_playback =
1402 {
1403         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1404                                  SNDRV_PCM_INFO_MMAP_VALID |
1405                                  SNDRV_PCM_INFO_RESUME |
1406                                  SNDRV_PCM_INFO_SYNC_START),
1407         .formats =              (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW | SNDRV_PCM_FMTBIT_IMA_ADPCM |
1408                                  SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE),
1409         .rates =                SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
1410         .rate_min =             5510,
1411         .rate_max =             48000,
1412         .channels_min =         1,
1413         .channels_max =         2,
1414         .buffer_bytes_max =     (128*1024),
1415         .period_bytes_min =     64,
1416         .period_bytes_max =     (128*1024),
1417         .periods_min =          1,
1418         .periods_max =          1024,
1419         .fifo_size =            0,
1420 };
1421
1422 static struct snd_pcm_hardware snd_wss_capture =
1423 {
1424         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1425                                  SNDRV_PCM_INFO_MMAP_VALID |
1426                                  SNDRV_PCM_INFO_RESUME |
1427                                  SNDRV_PCM_INFO_SYNC_START),
1428         .formats =              (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW | SNDRV_PCM_FMTBIT_IMA_ADPCM |
1429                                  SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE),
1430         .rates =                SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
1431         .rate_min =             5510,
1432         .rate_max =             48000,
1433         .channels_min =         1,
1434         .channels_max =         2,
1435         .buffer_bytes_max =     (128*1024),
1436         .period_bytes_min =     64,
1437         .period_bytes_max =     (128*1024),
1438         .periods_min =          1,
1439         .periods_max =          1024,
1440         .fifo_size =            0,
1441 };
1442
1443 /*
1444
1445  */
1446
1447 static int snd_wss_playback_open(struct snd_pcm_substream *substream)
1448 {
1449         struct snd_wss *chip = snd_pcm_substream_chip(substream);
1450         struct snd_pcm_runtime *runtime = substream->runtime;
1451         int err;
1452
1453         runtime->hw = snd_wss_playback;
1454
1455         /* hardware limitation of older chipsets */
1456         if (chip->hardware & WSS_HW_AD1848_MASK)
1457                 runtime->hw.formats &= ~(SNDRV_PCM_FMTBIT_IMA_ADPCM |
1458                                          SNDRV_PCM_FMTBIT_S16_BE);
1459
1460         /* hardware bug in InterWave chipset */
1461         if (chip->hardware == WSS_HW_INTERWAVE && chip->dma1 > 3)
1462                 runtime->hw.formats &= ~SNDRV_PCM_FMTBIT_MU_LAW;
1463
1464         /* hardware limitation of cheap chips */
1465         if (chip->hardware == WSS_HW_CS4235 ||
1466             chip->hardware == WSS_HW_CS4239)
1467                 runtime->hw.formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE;
1468
1469         snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.buffer_bytes_max);
1470         snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.period_bytes_max);
1471
1472         if (chip->claim_dma) {
1473                 if ((err = chip->claim_dma(chip, chip->dma_private_data, chip->dma1)) < 0)
1474                         return err;
1475         }
1476
1477         err = snd_wss_open(chip, WSS_MODE_PLAY);
1478         if (err < 0) {
1479                 if (chip->release_dma)
1480                         chip->release_dma(chip, chip->dma_private_data, chip->dma1);
1481                 snd_free_pages(runtime->dma_area, runtime->dma_bytes);
1482                 return err;
1483         }
1484         chip->playback_substream = substream;
1485         snd_pcm_set_sync(substream);
1486         chip->rate_constraint(runtime);
1487         return 0;
1488 }
1489
1490 static int snd_wss_capture_open(struct snd_pcm_substream *substream)
1491 {
1492         struct snd_wss *chip = snd_pcm_substream_chip(substream);
1493         struct snd_pcm_runtime *runtime = substream->runtime;
1494         int err;
1495
1496         runtime->hw = snd_wss_capture;
1497
1498         /* hardware limitation of older chipsets */
1499         if (chip->hardware & WSS_HW_AD1848_MASK)
1500                 runtime->hw.formats &= ~(SNDRV_PCM_FMTBIT_IMA_ADPCM |
1501                                          SNDRV_PCM_FMTBIT_S16_BE);
1502
1503         /* hardware limitation of cheap chips */
1504         if (chip->hardware == WSS_HW_CS4235 ||
1505             chip->hardware == WSS_HW_CS4239 ||
1506             chip->hardware == WSS_HW_OPTI93X)
1507                 runtime->hw.formats = SNDRV_PCM_FMTBIT_U8 |
1508                                       SNDRV_PCM_FMTBIT_S16_LE;
1509
1510         snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.buffer_bytes_max);
1511         snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.period_bytes_max);
1512
1513         if (chip->claim_dma) {
1514                 if ((err = chip->claim_dma(chip, chip->dma_private_data, chip->dma2)) < 0)
1515                         return err;
1516         }
1517
1518         err = snd_wss_open(chip, WSS_MODE_RECORD);
1519         if (err < 0) {
1520                 if (chip->release_dma)
1521                         chip->release_dma(chip, chip->dma_private_data, chip->dma2);
1522                 snd_free_pages(runtime->dma_area, runtime->dma_bytes);
1523                 return err;
1524         }
1525         chip->capture_substream = substream;
1526         snd_pcm_set_sync(substream);
1527         chip->rate_constraint(runtime);
1528         return 0;
1529 }
1530
1531 static int snd_wss_playback_close(struct snd_pcm_substream *substream)
1532 {
1533         struct snd_wss *chip = snd_pcm_substream_chip(substream);
1534
1535         chip->playback_substream = NULL;
1536         snd_wss_close(chip, WSS_MODE_PLAY);
1537         return 0;
1538 }
1539
1540 static int snd_wss_capture_close(struct snd_pcm_substream *substream)
1541 {
1542         struct snd_wss *chip = snd_pcm_substream_chip(substream);
1543
1544         chip->capture_substream = NULL;
1545         snd_wss_close(chip, WSS_MODE_RECORD);
1546         return 0;
1547 }
1548
1549 static void snd_wss_thinkpad_twiddle(struct snd_wss *chip, int on)
1550 {
1551         int tmp;
1552
1553         if (!chip->thinkpad_flag)
1554                 return;
1555
1556         outb(0x1c, AD1848_THINKPAD_CTL_PORT1);
1557         tmp = inb(AD1848_THINKPAD_CTL_PORT2);
1558
1559         if (on)
1560                 /* turn it on */
1561                 tmp |= AD1848_THINKPAD_CS4248_ENABLE_BIT;
1562         else
1563                 /* turn it off */
1564                 tmp &= ~AD1848_THINKPAD_CS4248_ENABLE_BIT;
1565
1566         outb(tmp, AD1848_THINKPAD_CTL_PORT2);
1567 }
1568
1569 #ifdef CONFIG_PM
1570
1571 /* lowlevel suspend callback for CS4231 */
1572 static void snd_wss_suspend(struct snd_wss *chip)
1573 {
1574         int reg;
1575         unsigned long flags;
1576
1577         snd_pcm_suspend_all(chip->pcm);
1578         spin_lock_irqsave(&chip->reg_lock, flags);
1579         for (reg = 0; reg < 32; reg++)
1580                 chip->image[reg] = snd_wss_in(chip, reg);
1581         spin_unlock_irqrestore(&chip->reg_lock, flags);
1582         if (chip->thinkpad_flag)
1583                 snd_wss_thinkpad_twiddle(chip, 0);
1584 }
1585
1586 /* lowlevel resume callback for CS4231 */
1587 static void snd_wss_resume(struct snd_wss *chip)
1588 {
1589         int reg;
1590         unsigned long flags;
1591         /* int timeout; */
1592
1593         if (chip->thinkpad_flag)
1594                 snd_wss_thinkpad_twiddle(chip, 1);
1595         snd_wss_mce_up(chip);
1596         spin_lock_irqsave(&chip->reg_lock, flags);
1597         for (reg = 0; reg < 32; reg++) {
1598                 switch (reg) {
1599                 case CS4231_VERSION:
1600                         break;
1601                 default:
1602                         snd_wss_out(chip, reg, chip->image[reg]);
1603                         break;
1604                 }
1605         }
1606         spin_unlock_irqrestore(&chip->reg_lock, flags);
1607 #if 1
1608         snd_wss_mce_down(chip);
1609 #else
1610         /* The following is a workaround to avoid freeze after resume on TP600E.
1611            This is the first half of copy of snd_wss_mce_down(), but doesn't
1612            include rescheduling.  -- iwai
1613            */
1614         snd_wss_busy_wait(chip);
1615         spin_lock_irqsave(&chip->reg_lock, flags);
1616         chip->mce_bit &= ~CS4231_MCE;
1617         timeout = wss_inb(chip, CS4231P(REGSEL));
1618         wss_outb(chip, CS4231P(REGSEL), chip->mce_bit | (timeout & 0x1f));
1619         spin_unlock_irqrestore(&chip->reg_lock, flags);
1620         if (timeout == 0x80)
1621                 snd_printk("down [0x%lx]: serious init problem - codec still busy\n", chip->port);
1622         if ((timeout & CS4231_MCE) == 0 ||
1623             !(chip->hardware & (WSS_HW_CS4231_MASK | WSS_HW_CS4232_MASK))) {
1624                 return;
1625         }
1626         snd_wss_busy_wait(chip);
1627 #endif
1628 }
1629 #endif /* CONFIG_PM */
1630
1631 static int snd_wss_free(struct snd_wss *chip)
1632 {
1633         release_and_free_resource(chip->res_port);
1634         release_and_free_resource(chip->res_cport);
1635         if (chip->irq >= 0) {
1636                 disable_irq(chip->irq);
1637                 if (!(chip->hwshare & WSS_HWSHARE_IRQ))
1638                         free_irq(chip->irq, (void *) chip);
1639         }
1640         if (!(chip->hwshare & WSS_HWSHARE_DMA1) && chip->dma1 >= 0) {
1641                 snd_dma_disable(chip->dma1);
1642                 free_dma(chip->dma1);
1643         }
1644         if (!(chip->hwshare & WSS_HWSHARE_DMA2) &&
1645             chip->dma2 >= 0 && chip->dma2 != chip->dma1) {
1646                 snd_dma_disable(chip->dma2);
1647                 free_dma(chip->dma2);
1648         }
1649         if (chip->timer)
1650                 snd_device_free(chip->card, chip->timer);
1651         kfree(chip);
1652         return 0;
1653 }
1654
1655 static int snd_wss_dev_free(struct snd_device *device)
1656 {
1657         struct snd_wss *chip = device->device_data;
1658         return snd_wss_free(chip);
1659 }
1660
1661 const char *snd_wss_chip_id(struct snd_wss *chip)
1662 {
1663         switch (chip->hardware) {
1664         case WSS_HW_CS4231:
1665                 return "CS4231";
1666         case WSS_HW_CS4231A:
1667                 return "CS4231A";
1668         case WSS_HW_CS4232:
1669                 return "CS4232";
1670         case WSS_HW_CS4232A:
1671                 return "CS4232A";
1672         case WSS_HW_CS4235:
1673                 return "CS4235";
1674         case WSS_HW_CS4236:
1675                 return "CS4236";
1676         case WSS_HW_CS4236B:
1677                 return "CS4236B";
1678         case WSS_HW_CS4237B:
1679                 return "CS4237B";
1680         case WSS_HW_CS4238B:
1681                 return "CS4238B";
1682         case WSS_HW_CS4239:
1683                 return "CS4239";
1684         case WSS_HW_INTERWAVE:
1685                 return "AMD InterWave";
1686         case WSS_HW_OPL3SA2:
1687                 return chip->card->shortname;
1688         case WSS_HW_AD1845:
1689                 return "AD1845";
1690         case WSS_HW_OPTI93X:
1691                 return "OPTi 93x";
1692         case WSS_HW_AD1847:
1693                 return "AD1847";
1694         case WSS_HW_AD1848:
1695                 return "AD1848";
1696         case WSS_HW_CS4248:
1697                 return "CS4248";
1698         case WSS_HW_CMI8330:
1699                 return "CMI8330/C3D";
1700         default:
1701                 return "???";
1702         }
1703 }
1704 EXPORT_SYMBOL(snd_wss_chip_id);
1705
1706 static int snd_wss_new(struct snd_card *card,
1707                           unsigned short hardware,
1708                           unsigned short hwshare,
1709                           struct snd_wss **rchip)
1710 {
1711         struct snd_wss *chip;
1712
1713         *rchip = NULL;
1714         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1715         if (chip == NULL)
1716                 return -ENOMEM;
1717         chip->hardware = hardware;
1718         chip->hwshare = hwshare;
1719
1720         spin_lock_init(&chip->reg_lock);
1721         mutex_init(&chip->mce_mutex);
1722         mutex_init(&chip->open_mutex);
1723         chip->card = card;
1724         chip->rate_constraint = snd_wss_xrate;
1725         chip->set_playback_format = snd_wss_playback_format;
1726         chip->set_capture_format = snd_wss_capture_format;
1727         if (chip->hardware == WSS_HW_OPTI93X)
1728                 memcpy(&chip->image, &snd_opti93x_original_image,
1729                        sizeof(snd_opti93x_original_image));
1730         else
1731                 memcpy(&chip->image, &snd_wss_original_image,
1732                        sizeof(snd_wss_original_image));
1733         if (chip->hardware & WSS_HW_AD1848_MASK) {
1734                 chip->image[CS4231_PIN_CTRL] = 0;
1735                 chip->image[CS4231_TEST_INIT] = 0;
1736         }
1737
1738         *rchip = chip;
1739         return 0;
1740 }
1741
1742 int snd_wss_create(struct snd_card *card,
1743                       unsigned long port,
1744                       unsigned long cport,
1745                       int irq, int dma1, int dma2,
1746                       unsigned short hardware,
1747                       unsigned short hwshare,
1748                       struct snd_wss **rchip)
1749 {
1750         static struct snd_device_ops ops = {
1751                 .dev_free =     snd_wss_dev_free,
1752         };
1753         struct snd_wss *chip;
1754         int err;
1755
1756         err = snd_wss_new(card, hardware, hwshare, &chip);
1757         if (err < 0)
1758                 return err;
1759
1760         chip->irq = -1;
1761         chip->dma1 = -1;
1762         chip->dma2 = -1;
1763
1764         chip->res_port = request_region(port, 4, "WSS");
1765         if (!chip->res_port) {
1766                 snd_printk(KERN_ERR "wss: can't grab port 0x%lx\n", port);
1767                 snd_wss_free(chip);
1768                 return -EBUSY;
1769         }
1770         chip->port = port;
1771         if ((long)cport >= 0) {
1772                 chip->res_cport = request_region(cport, 8, "CS4232 Control");
1773                 if (!chip->res_cport) {
1774                         snd_printk(KERN_ERR
1775                                 "wss: can't grab control port 0x%lx\n", cport);
1776                         snd_wss_free(chip);
1777                         return -ENODEV;
1778                 }
1779         }
1780         chip->cport = cport;
1781         if (!(hwshare & WSS_HWSHARE_IRQ))
1782                 if (request_irq(irq, snd_wss_interrupt, IRQF_DISABLED,
1783                                 "WSS", (void *) chip)) {
1784                         snd_printk(KERN_ERR "wss: can't grab IRQ %d\n", irq);
1785                         snd_wss_free(chip);
1786                         return -EBUSY;
1787                 }
1788         chip->irq = irq;
1789         if (!(hwshare & WSS_HWSHARE_DMA1) && request_dma(dma1, "WSS - 1")) {
1790                 snd_printk(KERN_ERR "wss: can't grab DMA1 %d\n", dma1);
1791                 snd_wss_free(chip);
1792                 return -EBUSY;
1793         }
1794         chip->dma1 = dma1;
1795         if (!(hwshare & WSS_HWSHARE_DMA2) && dma1 != dma2 &&
1796               dma2 >= 0 && request_dma(dma2, "WSS - 2")) {
1797                 snd_printk(KERN_ERR "wss: can't grab DMA2 %d\n", dma2);
1798                 snd_wss_free(chip);
1799                 return -EBUSY;
1800         }
1801         if (dma1 == dma2 || dma2 < 0) {
1802                 chip->single_dma = 1;
1803                 chip->dma2 = chip->dma1;
1804         } else
1805                 chip->dma2 = dma2;
1806
1807         if (hardware == WSS_HW_THINKPAD) {
1808                 chip->thinkpad_flag = 1;
1809                 chip->hardware = WSS_HW_DETECT; /* reset */
1810                 snd_wss_thinkpad_twiddle(chip, 1);
1811         }
1812
1813         /* global setup */
1814         if (snd_wss_probe(chip) < 0) {
1815                 snd_wss_free(chip);
1816                 return -ENODEV;
1817         }
1818         snd_wss_init(chip);
1819
1820 #if 0
1821         if (chip->hardware & WSS_HW_CS4232_MASK) {
1822                 if (chip->res_cport == NULL)
1823                         snd_printk("CS4232 control port features are not accessible\n");
1824         }
1825 #endif
1826
1827         /* Register device */
1828         err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1829         if (err < 0) {
1830                 snd_wss_free(chip);
1831                 return err;
1832         }
1833
1834 #ifdef CONFIG_PM
1835         /* Power Management */
1836         chip->suspend = snd_wss_suspend;
1837         chip->resume = snd_wss_resume;
1838 #endif
1839
1840         *rchip = chip;
1841         return 0;
1842 }
1843 EXPORT_SYMBOL(snd_wss_create);
1844
1845 static struct snd_pcm_ops snd_wss_playback_ops = {
1846         .open =         snd_wss_playback_open,
1847         .close =        snd_wss_playback_close,
1848         .ioctl =        snd_pcm_lib_ioctl,
1849         .hw_params =    snd_wss_playback_hw_params,
1850         .hw_free =      snd_wss_playback_hw_free,
1851         .prepare =      snd_wss_playback_prepare,
1852         .trigger =      snd_wss_trigger,
1853         .pointer =      snd_wss_playback_pointer,
1854 };
1855
1856 static struct snd_pcm_ops snd_wss_capture_ops = {
1857         .open =         snd_wss_capture_open,
1858         .close =        snd_wss_capture_close,
1859         .ioctl =        snd_pcm_lib_ioctl,
1860         .hw_params =    snd_wss_capture_hw_params,
1861         .hw_free =      snd_wss_capture_hw_free,
1862         .prepare =      snd_wss_capture_prepare,
1863         .trigger =      snd_wss_trigger,
1864         .pointer =      snd_wss_capture_pointer,
1865 };
1866
1867 int snd_wss_pcm(struct snd_wss *chip, int device, struct snd_pcm **rpcm)
1868 {
1869         struct snd_pcm *pcm;
1870         int err;
1871
1872         err = snd_pcm_new(chip->card, "WSS", device, 1, 1, &pcm);
1873         if (err < 0)
1874                 return err;
1875
1876         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_wss_playback_ops);
1877         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_wss_capture_ops);
1878
1879         /* global setup */
1880         pcm->private_data = chip;
1881         pcm->info_flags = 0;
1882         if (chip->single_dma)
1883                 pcm->info_flags |= SNDRV_PCM_INFO_HALF_DUPLEX;
1884         if (chip->hardware != WSS_HW_INTERWAVE)
1885                 pcm->info_flags |= SNDRV_PCM_INFO_JOINT_DUPLEX;
1886         strcpy(pcm->name, snd_wss_chip_id(chip));
1887
1888         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1889                                               snd_dma_isa_data(),
1890                                               64*1024, chip->dma1 > 3 || chip->dma2 > 3 ? 128*1024 : 64*1024);
1891
1892         chip->pcm = pcm;
1893         if (rpcm)
1894                 *rpcm = pcm;
1895         return 0;
1896 }
1897 EXPORT_SYMBOL(snd_wss_pcm);
1898
1899 static void snd_wss_timer_free(struct snd_timer *timer)
1900 {
1901         struct snd_wss *chip = timer->private_data;
1902         chip->timer = NULL;
1903 }
1904
1905 int snd_wss_timer(struct snd_wss *chip, int device, struct snd_timer **rtimer)
1906 {
1907         struct snd_timer *timer;
1908         struct snd_timer_id tid;
1909         int err;
1910
1911         /* Timer initialization */
1912         tid.dev_class = SNDRV_TIMER_CLASS_CARD;
1913         tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE;
1914         tid.card = chip->card->number;
1915         tid.device = device;
1916         tid.subdevice = 0;
1917         if ((err = snd_timer_new(chip->card, "CS4231", &tid, &timer)) < 0)
1918                 return err;
1919         strcpy(timer->name, snd_wss_chip_id(chip));
1920         timer->private_data = chip;
1921         timer->private_free = snd_wss_timer_free;
1922         timer->hw = snd_wss_timer_table;
1923         chip->timer = timer;
1924         if (rtimer)
1925                 *rtimer = timer;
1926         return 0;
1927 }
1928 EXPORT_SYMBOL(snd_wss_timer);
1929
1930 /*
1931  *  MIXER part
1932  */
1933
1934 static int snd_wss_info_mux(struct snd_kcontrol *kcontrol,
1935                             struct snd_ctl_elem_info *uinfo)
1936 {
1937         static char *texts[4] = {
1938                 "Line", "Aux", "Mic", "Mix"
1939         };
1940         static char *opl3sa_texts[4] = {
1941                 "Line", "CD", "Mic", "Mix"
1942         };
1943         static char *gusmax_texts[4] = {
1944                 "Line", "Synth", "Mic", "Mix"
1945         };
1946         char **ptexts = texts;
1947         struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
1948
1949         if (snd_BUG_ON(!chip->card))
1950                 return -EINVAL;
1951         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1952         uinfo->count = 2;
1953         uinfo->value.enumerated.items = 4;
1954         if (uinfo->value.enumerated.item > 3)
1955                 uinfo->value.enumerated.item = 3;
1956         if (!strcmp(chip->card->driver, "GUS MAX"))
1957                 ptexts = gusmax_texts;
1958         switch (chip->hardware) {
1959         case WSS_HW_INTERWAVE:
1960                 ptexts = gusmax_texts;
1961                 break;
1962         case WSS_HW_OPL3SA2:
1963                 ptexts = opl3sa_texts;
1964                 break;
1965         }
1966         strcpy(uinfo->value.enumerated.name, ptexts[uinfo->value.enumerated.item]);
1967         return 0;
1968 }
1969
1970 static int snd_wss_get_mux(struct snd_kcontrol *kcontrol,
1971                            struct snd_ctl_elem_value *ucontrol)
1972 {
1973         struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
1974         unsigned long flags;
1975
1976         spin_lock_irqsave(&chip->reg_lock, flags);
1977         ucontrol->value.enumerated.item[0] = (chip->image[CS4231_LEFT_INPUT] & CS4231_MIXS_ALL) >> 6;
1978         ucontrol->value.enumerated.item[1] = (chip->image[CS4231_RIGHT_INPUT] & CS4231_MIXS_ALL) >> 6;
1979         spin_unlock_irqrestore(&chip->reg_lock, flags);
1980         return 0;
1981 }
1982
1983 static int snd_wss_put_mux(struct snd_kcontrol *kcontrol,
1984                            struct snd_ctl_elem_value *ucontrol)
1985 {
1986         struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
1987         unsigned long flags;
1988         unsigned short left, right;
1989         int change;
1990
1991         if (ucontrol->value.enumerated.item[0] > 3 ||
1992             ucontrol->value.enumerated.item[1] > 3)
1993                 return -EINVAL;
1994         left = ucontrol->value.enumerated.item[0] << 6;
1995         right = ucontrol->value.enumerated.item[1] << 6;
1996         spin_lock_irqsave(&chip->reg_lock, flags);
1997         left = (chip->image[CS4231_LEFT_INPUT] & ~CS4231_MIXS_ALL) | left;
1998         right = (chip->image[CS4231_RIGHT_INPUT] & ~CS4231_MIXS_ALL) | right;
1999         change = left != chip->image[CS4231_LEFT_INPUT] ||
2000                  right != chip->image[CS4231_RIGHT_INPUT];
2001         snd_wss_out(chip, CS4231_LEFT_INPUT, left);
2002         snd_wss_out(chip, CS4231_RIGHT_INPUT, right);
2003         spin_unlock_irqrestore(&chip->reg_lock, flags);
2004         return change;
2005 }
2006
2007 int snd_wss_info_single(struct snd_kcontrol *kcontrol,
2008                         struct snd_ctl_elem_info *uinfo)
2009 {
2010         int mask = (kcontrol->private_value >> 16) & 0xff;
2011
2012         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
2013         uinfo->count = 1;
2014         uinfo->value.integer.min = 0;
2015         uinfo->value.integer.max = mask;
2016         return 0;
2017 }
2018 EXPORT_SYMBOL(snd_wss_info_single);
2019
2020 int snd_wss_get_single(struct snd_kcontrol *kcontrol,
2021                        struct snd_ctl_elem_value *ucontrol)
2022 {
2023         struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
2024         unsigned long flags;
2025         int reg = kcontrol->private_value & 0xff;
2026         int shift = (kcontrol->private_value >> 8) & 0xff;
2027         int mask = (kcontrol->private_value >> 16) & 0xff;
2028         int invert = (kcontrol->private_value >> 24) & 0xff;
2029
2030         spin_lock_irqsave(&chip->reg_lock, flags);
2031         ucontrol->value.integer.value[0] = (chip->image[reg] >> shift) & mask;
2032         spin_unlock_irqrestore(&chip->reg_lock, flags);
2033         if (invert)
2034                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
2035         return 0;
2036 }
2037 EXPORT_SYMBOL(snd_wss_get_single);
2038
2039 int snd_wss_put_single(struct snd_kcontrol *kcontrol,
2040                        struct snd_ctl_elem_value *ucontrol)
2041 {
2042         struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
2043         unsigned long flags;
2044         int reg = kcontrol->private_value & 0xff;
2045         int shift = (kcontrol->private_value >> 8) & 0xff;
2046         int mask = (kcontrol->private_value >> 16) & 0xff;
2047         int invert = (kcontrol->private_value >> 24) & 0xff;
2048         int change;
2049         unsigned short val;
2050
2051         val = (ucontrol->value.integer.value[0] & mask);
2052         if (invert)
2053                 val = mask - val;
2054         val <<= shift;
2055         spin_lock_irqsave(&chip->reg_lock, flags);
2056         val = (chip->image[reg] & ~(mask << shift)) | val;
2057         change = val != chip->image[reg];
2058         snd_wss_out(chip, reg, val);
2059         spin_unlock_irqrestore(&chip->reg_lock, flags);
2060         return change;
2061 }
2062 EXPORT_SYMBOL(snd_wss_put_single);
2063
2064 int snd_wss_info_double(struct snd_kcontrol *kcontrol,
2065                         struct snd_ctl_elem_info *uinfo)
2066 {
2067         int mask = (kcontrol->private_value >> 24) & 0xff;
2068
2069         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
2070         uinfo->count = 2;
2071         uinfo->value.integer.min = 0;
2072         uinfo->value.integer.max = mask;
2073         return 0;
2074 }
2075 EXPORT_SYMBOL(snd_wss_info_double);
2076
2077 int snd_wss_get_double(struct snd_kcontrol *kcontrol,
2078                        struct snd_ctl_elem_value *ucontrol)
2079 {
2080         struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
2081         unsigned long flags;
2082         int left_reg = kcontrol->private_value & 0xff;
2083         int right_reg = (kcontrol->private_value >> 8) & 0xff;
2084         int shift_left = (kcontrol->private_value >> 16) & 0x07;
2085         int shift_right = (kcontrol->private_value >> 19) & 0x07;
2086         int mask = (kcontrol->private_value >> 24) & 0xff;
2087         int invert = (kcontrol->private_value >> 22) & 1;
2088
2089         spin_lock_irqsave(&chip->reg_lock, flags);
2090         ucontrol->value.integer.value[0] = (chip->image[left_reg] >> shift_left) & mask;
2091         ucontrol->value.integer.value[1] = (chip->image[right_reg] >> shift_right) & mask;
2092         spin_unlock_irqrestore(&chip->reg_lock, flags);
2093         if (invert) {
2094                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
2095                 ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
2096         }
2097         return 0;
2098 }
2099 EXPORT_SYMBOL(snd_wss_get_double);
2100
2101 int snd_wss_put_double(struct snd_kcontrol *kcontrol,
2102                        struct snd_ctl_elem_value *ucontrol)
2103 {
2104         struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
2105         unsigned long flags;
2106         int left_reg = kcontrol->private_value & 0xff;
2107         int right_reg = (kcontrol->private_value >> 8) & 0xff;
2108         int shift_left = (kcontrol->private_value >> 16) & 0x07;
2109         int shift_right = (kcontrol->private_value >> 19) & 0x07;
2110         int mask = (kcontrol->private_value >> 24) & 0xff;
2111         int invert = (kcontrol->private_value >> 22) & 1;
2112         int change;
2113         unsigned short val1, val2;
2114
2115         val1 = ucontrol->value.integer.value[0] & mask;
2116         val2 = ucontrol->value.integer.value[1] & mask;
2117         if (invert) {
2118                 val1 = mask - val1;
2119                 val2 = mask - val2;
2120         }
2121         val1 <<= shift_left;
2122         val2 <<= shift_right;
2123         spin_lock_irqsave(&chip->reg_lock, flags);
2124         if (left_reg != right_reg) {
2125                 val1 = (chip->image[left_reg] & ~(mask << shift_left)) | val1;
2126                 val2 = (chip->image[right_reg] & ~(mask << shift_right)) | val2;
2127                 change = val1 != chip->image[left_reg] ||
2128                          val2 != chip->image[right_reg];
2129                 snd_wss_out(chip, left_reg, val1);
2130                 snd_wss_out(chip, right_reg, val2);
2131         } else {
2132                 mask = (mask << shift_left) | (mask << shift_right);
2133                 val1 = (chip->image[left_reg] & ~mask) | val1 | val2;
2134                 change = val1 != chip->image[left_reg];
2135                 snd_wss_out(chip, left_reg, val1);
2136         }
2137         spin_unlock_irqrestore(&chip->reg_lock, flags);
2138         return change;
2139 }
2140 EXPORT_SYMBOL(snd_wss_put_double);
2141
2142 static const DECLARE_TLV_DB_SCALE(db_scale_6bit, -9450, 150, 0);
2143 static const DECLARE_TLV_DB_SCALE(db_scale_5bit_12db_max, -3450, 150, 0);
2144 static const DECLARE_TLV_DB_SCALE(db_scale_rec_gain, 0, 150, 0);
2145
2146 static struct snd_kcontrol_new snd_ad1848_controls[] = {
2147 WSS_DOUBLE("PCM Playback Switch", 0, CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT,
2148            7, 7, 1, 1),
2149 WSS_DOUBLE_TLV("PCM Playback Volume", 0,
2150                CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 0, 0, 63, 1,
2151                db_scale_6bit),
2152 WSS_DOUBLE("Aux Playback Switch", 0,
2153            CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 7, 7, 1, 1),
2154 WSS_DOUBLE_TLV("Aux Playback Volume", 0,
2155                CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 0, 0, 31, 1,
2156                db_scale_5bit_12db_max),
2157 WSS_DOUBLE("Aux Playback Switch", 1,
2158            CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 7, 7, 1, 1),
2159 WSS_DOUBLE_TLV("Aux Playback Volume", 1,
2160                CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 0, 0, 31, 1,
2161                db_scale_5bit_12db_max),
2162 WSS_DOUBLE_TLV("Capture Volume", 0, CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT,
2163                 0, 0, 15, 0, db_scale_rec_gain),
2164 {
2165         .name = "Capture Source",
2166         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2167         .info = snd_wss_info_mux,
2168         .get = snd_wss_get_mux,
2169         .put = snd_wss_put_mux,
2170 },
2171 WSS_SINGLE("Loopback Capture Switch", 0, CS4231_LOOPBACK, 0, 1, 0),
2172 WSS_SINGLE_TLV("Loopback Capture Volume", 0, CS4231_LOOPBACK, 1, 63, 0,
2173                db_scale_6bit),
2174 };
2175
2176 static struct snd_kcontrol_new snd_wss_controls[] = {
2177 WSS_DOUBLE("PCM Playback Switch", 0,
2178                 CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 7, 7, 1, 1),
2179 WSS_DOUBLE("PCM Playback Volume", 0,
2180                 CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 0, 0, 63, 1),
2181 WSS_DOUBLE("Line Playback Switch", 0,
2182                 CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 7, 7, 1, 1),
2183 WSS_DOUBLE("Line Playback Volume", 0,
2184                 CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 0, 0, 31, 1),
2185 WSS_DOUBLE("Aux Playback Switch", 0,
2186                 CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 7, 7, 1, 1),
2187 WSS_DOUBLE("Aux Playback Volume", 0,
2188                 CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 0, 0, 31, 1),
2189 WSS_DOUBLE("Aux Playback Switch", 1,
2190                 CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 7, 7, 1, 1),
2191 WSS_DOUBLE("Aux Playback Volume", 1,
2192                 CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 0, 0, 31, 1),
2193 WSS_SINGLE("Mono Playback Switch", 0,
2194                 CS4231_MONO_CTRL, 7, 1, 1),
2195 WSS_SINGLE("Mono Playback Volume", 0,
2196                 CS4231_MONO_CTRL, 0, 15, 1),
2197 WSS_SINGLE("Mono Output Playback Switch", 0,
2198                 CS4231_MONO_CTRL, 6, 1, 1),
2199 WSS_SINGLE("Mono Output Playback Bypass", 0,
2200                 CS4231_MONO_CTRL, 5, 1, 0),
2201 WSS_DOUBLE("Capture Volume", 0,
2202                 CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 0, 0, 15, 0),
2203 {
2204         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2205         .name = "Capture Source",
2206         .info = snd_wss_info_mux,
2207         .get = snd_wss_get_mux,
2208         .put = snd_wss_put_mux,
2209 },
2210 WSS_DOUBLE("Mic Boost", 0,
2211                 CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 5, 5, 1, 0),
2212 WSS_SINGLE("Loopback Capture Switch", 0,
2213                 CS4231_LOOPBACK, 0, 1, 0),
2214 WSS_SINGLE("Loopback Capture Volume", 0,
2215                 CS4231_LOOPBACK, 2, 63, 1)
2216 };
2217
2218 static struct snd_kcontrol_new snd_opti93x_controls[] = {
2219 WSS_DOUBLE("Master Playback Switch", 0,
2220                 OPTi93X_OUT_LEFT, OPTi93X_OUT_RIGHT, 7, 7, 1, 1),
2221 WSS_DOUBLE("Master Playback Volume", 0,
2222                 OPTi93X_OUT_LEFT, OPTi93X_OUT_RIGHT, 1, 1, 31, 1),
2223 WSS_DOUBLE("PCM Playback Switch", 0,
2224                 CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 7, 7, 1, 1),
2225 WSS_DOUBLE("PCM Playback Volume", 0,
2226                 CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 0, 0, 31, 1),
2227 WSS_DOUBLE("FM Playback Switch", 0,
2228                 CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 7, 7, 1, 1),
2229 WSS_DOUBLE("FM Playback Volume", 0,
2230                 CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 1, 1, 15, 1),
2231 WSS_DOUBLE("Line Playback Switch", 0,
2232                 CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 7, 7, 1, 1),
2233 WSS_DOUBLE("Line Playback Volume", 0,
2234                 CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 0, 0, 15, 1),
2235 WSS_DOUBLE("Mic Playback Switch", 0,
2236                 OPTi93X_MIC_LEFT_INPUT, OPTi93X_MIC_RIGHT_INPUT, 7, 7, 1, 1),
2237 WSS_DOUBLE("Mic Playback Volume", 0,
2238                 OPTi93X_MIC_LEFT_INPUT, OPTi93X_MIC_RIGHT_INPUT, 1, 1, 15, 1),
2239 WSS_DOUBLE("Mic Boost", 0,
2240                 CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 5, 5, 1, 0),
2241 WSS_DOUBLE("CD Playback Switch", 0,
2242                 CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 7, 7, 1, 1),
2243 WSS_DOUBLE("CD Playback Volume", 0,
2244                 CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 1, 1, 15, 1),
2245 WSS_DOUBLE("Aux Playback Switch", 0,
2246                 OPTi931_AUX_LEFT_INPUT, OPTi931_AUX_RIGHT_INPUT, 7, 7, 1, 1),
2247 WSS_DOUBLE("Aux Playback Volume", 0,
2248                 OPTi931_AUX_LEFT_INPUT, OPTi931_AUX_RIGHT_INPUT, 1, 1, 15, 1),
2249 WSS_DOUBLE("Capture Volume", 0,
2250                 CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 0, 0, 15, 0),
2251 {
2252         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2253         .name = "Capture Source",
2254         .info = snd_wss_info_mux,
2255         .get = snd_wss_get_mux,
2256         .put = snd_wss_put_mux,
2257 }
2258 };
2259
2260 int snd_wss_mixer(struct snd_wss *chip)
2261 {
2262         struct snd_card *card;
2263         unsigned int idx;
2264         int err;
2265
2266         if (snd_BUG_ON(!chip || !chip->pcm))
2267                 return -EINVAL;
2268
2269         card = chip->card;
2270
2271         strcpy(card->mixername, chip->pcm->name);
2272
2273         if (chip->hardware == WSS_HW_OPTI93X)
2274                 for (idx = 0; idx < ARRAY_SIZE(snd_opti93x_controls); idx++) {
2275                         err = snd_ctl_add(card,
2276                                         snd_ctl_new1(&snd_opti93x_controls[idx],
2277                                                      chip));
2278                         if (err < 0)
2279                                 return err;
2280                 }
2281         else if (chip->hardware & WSS_HW_AD1848_MASK)
2282                 for (idx = 0; idx < ARRAY_SIZE(snd_ad1848_controls); idx++) {
2283                         err = snd_ctl_add(card,
2284                                         snd_ctl_new1(&snd_ad1848_controls[idx],
2285                                                      chip));
2286                         if (err < 0)
2287                                 return err;
2288                 }
2289         else
2290                 for (idx = 0; idx < ARRAY_SIZE(snd_wss_controls); idx++) {
2291                         err = snd_ctl_add(card,
2292                                         snd_ctl_new1(&snd_wss_controls[idx],
2293                                                      chip));
2294                         if (err < 0)
2295                                 return err;
2296                 }
2297         return 0;
2298 }
2299 EXPORT_SYMBOL(snd_wss_mixer);
2300
2301 const struct snd_pcm_ops *snd_wss_get_pcm_ops(int direction)
2302 {
2303         return direction == SNDRV_PCM_STREAM_PLAYBACK ?
2304                 &snd_wss_playback_ops : &snd_wss_capture_ops;
2305 }
2306 EXPORT_SYMBOL(snd_wss_get_pcm_ops);
2307
2308 /*
2309  *  INIT part
2310  */
2311
2312 static int __init alsa_wss_init(void)
2313 {
2314         return 0;
2315 }
2316
2317 static void __exit alsa_wss_exit(void)
2318 {
2319 }
2320
2321 module_init(alsa_wss_init);
2322 module_exit(alsa_wss_exit);