sound/isa/ad1816a/ad1816a_lib.c

   1 /*
   2     ad1816a.c - lowlevel code for Analog Devices AD1816A chip.
   3     Copyright (C) 1999-2000 by Massimo Piccioni <dafastidio@libero.it>
   4
   5     This program is free software; you can redistribute it and/or modify
   6     it under the terms of the GNU General Public License as published by
   7     the Free Software Foundation; either version 2 of the License, or
   8     (at your option) any later version.
   9
  10     This program is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU General Public License for more details.
  14
  15     You should have received a copy of the GNU General Public License
  16     along with this program; if not, write to the Free Software
  17     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  18 */
  19
  20 #include <linux/delay.h>
  21 #include <linux/init.h>
  22 #include <linux/interrupt.h>
  23 #include <linux/slab.h>
  24 #include <linux/ioport.h>
  25 #include <sound/core.h>
  26 #include <sound/tlv.h>
  27 #include <sound/ad1816a.h>
  28
  29 #include <asm/io.h>
  30 #include <asm/dma.h>
  31
  32 static inline int snd_ad1816a_busy_wait(struct snd_ad1816a *chip)
  33 {
  34         int timeout;
  35
  36         for (timeout = 1000; timeout-- > 0; udelay(10))
  37                 if (inb(AD1816A_REG(AD1816A_CHIP_STATUS)) & AD1816A_READY)
  38                         return 0;
  39
  40         snd_printk(KERN_WARNING "chip busy.\n");
  41         return -EBUSY;
  42 }
  43
  44 static inline unsigned char snd_ad1816a_in(struct snd_ad1816a *chip, unsigned char reg)
  45 {
  46         snd_ad1816a_busy_wait(chip);
  47         return inb(AD1816A_REG(reg));
  48 }
  49
  50 static inline void snd_ad1816a_out(struct snd_ad1816a *chip, unsigned char reg,
  51                             unsigned char value)
  52 {
  53         snd_ad1816a_busy_wait(chip);
  54         outb(value, AD1816A_REG(reg));
  55 }
  56
  57 static inline void snd_ad1816a_out_mask(struct snd_ad1816a *chip, unsigned char reg,
  58                                  unsigned char mask, unsigned char value)
  59 {
  60         snd_ad1816a_out(chip, reg,
  61                 (value & mask) | (snd_ad1816a_in(chip, reg) & ~mask));
  62 }
  63
  64 static unsigned short snd_ad1816a_read(struct snd_ad1816a *chip, unsigned char reg)
  65 {
  66         snd_ad1816a_out(chip, AD1816A_INDIR_ADDR, reg & 0x3f);
  67         return snd_ad1816a_in(chip, AD1816A_INDIR_DATA_LOW) |
  68                 (snd_ad1816a_in(chip, AD1816A_INDIR_DATA_HIGH) << 8);
  69 }
  70
  71 static void snd_ad1816a_write(struct snd_ad1816a *chip, unsigned char reg,
  72                               unsigned short value)
  73 {
  74         snd_ad1816a_out(chip, AD1816A_INDIR_ADDR, reg & 0x3f);
  75         snd_ad1816a_out(chip, AD1816A_INDIR_DATA_LOW, value & 0xff);
  76         snd_ad1816a_out(chip, AD1816A_INDIR_DATA_HIGH, (value >> 8) & 0xff);
  77 }
  78
  79 static void snd_ad1816a_write_mask(struct snd_ad1816a *chip, unsigned char reg,
  80                                    unsigned short mask, unsigned short value)
  81 {
  82         snd_ad1816a_write(chip, reg,
  83                 (value & mask) | (snd_ad1816a_read(chip, reg) & ~mask));
  84 }
  85
  86
  87 static unsigned char snd_ad1816a_get_format(struct snd_ad1816a *chip,
  88                                             unsigned int format, int channels)
  89 {
  90         unsigned char retval = AD1816A_FMT_LINEAR_8;
  91
  92         switch (format) {
  93         case SNDRV_PCM_FORMAT_MU_LAW:
  94                 retval = AD1816A_FMT_ULAW_8;
  95                 break;
  96         case SNDRV_PCM_FORMAT_A_LAW:
  97                 retval = AD1816A_FMT_ALAW_8;
  98                 break;
  99         case SNDRV_PCM_FORMAT_S16_LE:
 100                 retval = AD1816A_FMT_LINEAR_16_LIT;
 101                 break;
 102         case SNDRV_PCM_FORMAT_S16_BE:
 103                 retval = AD1816A_FMT_LINEAR_16_BIG;
 104         }
 105         return (channels > 1) ? (retval | AD1816A_FMT_STEREO) : retval;
 106 }
 107
 108 static int snd_ad1816a_open(struct snd_ad1816a *chip, unsigned int mode)
 109 {
 110         unsigned long flags;
 111
 112         spin_lock_irqsave(&chip->lock, flags);
 113
 114         if (chip->mode & mode) {
 115                 spin_unlock_irqrestore(&chip->lock, flags);
 116                 return -EAGAIN;
 117         }
 118
 119         switch ((mode &= AD1816A_MODE_OPEN)) {
 120         case AD1816A_MODE_PLAYBACK:
 121                 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS,
 122                         AD1816A_PLAYBACK_IRQ_PENDING, 0x00);
 123                 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
 124                         AD1816A_PLAYBACK_IRQ_ENABLE, 0xffff);
 125                 break;
 126         case AD1816A_MODE_CAPTURE:
 127                 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS,
 128                         AD1816A_CAPTURE_IRQ_PENDING, 0x00);
 129                 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
 130                         AD1816A_CAPTURE_IRQ_ENABLE, 0xffff);
 131                 break;
 132         case AD1816A_MODE_TIMER:
 133                 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS,
 134                         AD1816A_TIMER_IRQ_PENDING, 0x00);
 135                 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
 136                         AD1816A_TIMER_IRQ_ENABLE, 0xffff);
 137         }
 138         chip->mode |= mode;
 139
 140         spin_unlock_irqrestore(&chip->lock, flags);
 141         return 0;
 142 }
 143
 144 static void snd_ad1816a_close(struct snd_ad1816a *chip, unsigned int mode)
 145 {
 146         unsigned long flags;
 147
 148         spin_lock_irqsave(&chip->lock, flags);
 149
 150         switch ((mode &= AD1816A_MODE_OPEN)) {
 151         case AD1816A_MODE_PLAYBACK:
 152                 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS,
 153                         AD1816A_PLAYBACK_IRQ_PENDING, 0x00);
 154                 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
 155                         AD1816A_PLAYBACK_IRQ_ENABLE, 0x0000);
 156                 break;
 157         case AD1816A_MODE_CAPTURE:
 158                 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS,
 159                         AD1816A_CAPTURE_IRQ_PENDING, 0x00);
 160                 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
 161                         AD1816A_CAPTURE_IRQ_ENABLE, 0x0000);
 162                 break;
 163         case AD1816A_MODE_TIMER:
 164                 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS,
 165                         AD1816A_TIMER_IRQ_PENDING, 0x00);
 166                 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
 167                         AD1816A_TIMER_IRQ_ENABLE, 0x0000);
 168         }
 169         if (!((chip->mode &= ~mode) & AD1816A_MODE_OPEN))
 170                 chip->mode = 0;
 171
 172         spin_unlock_irqrestore(&chip->lock, flags);
 173 }
 174
 175
 176 static int snd_ad1816a_trigger(struct snd_ad1816a *chip, unsigned char what,
 177                                int channel, int cmd, int iscapture)
 178 {
 179         int error = 0;
 180
 181         switch (cmd) {
 182         case SNDRV_PCM_TRIGGER_START:
 183         case SNDRV_PCM_TRIGGER_STOP:
 184                 spin_lock(&chip->lock);
 185                 cmd = (cmd == SNDRV_PCM_TRIGGER_START) ? 0xff: 0x00;
 186                 /* if (what & AD1816A_PLAYBACK_ENABLE) */
 187                 /* That is not valid, because playback and capture enable
 188                  * are the same bit pattern, just to different addresses
 189                  */
 190                 if (! iscapture)
 191                         snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG,
 192                                 AD1816A_PLAYBACK_ENABLE, cmd);
 193                 else
 194                         snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG,
 195                                 AD1816A_CAPTURE_ENABLE, cmd);
 196                 spin_unlock(&chip->lock);
 197                 break;
 198         default:
 199                 snd_printk(KERN_WARNING "invalid trigger mode 0x%x.\n", what);
 200                 error = -EINVAL;
 201         }
 202
 203         return error;
 204 }
 205
 206 static int snd_ad1816a_playback_trigger(struct snd_pcm_substream *substream, int cmd)
 207 {
 208         struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
 209         return snd_ad1816a_trigger(chip, AD1816A_PLAYBACK_ENABLE,
 210                                    SNDRV_PCM_STREAM_PLAYBACK, cmd, 0);
 211 }
 212
 213 static int snd_ad1816a_capture_trigger(struct snd_pcm_substream *substream, int cmd)
 214 {
 215         struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
 216         return snd_ad1816a_trigger(chip, AD1816A_CAPTURE_ENABLE,
 217                                    SNDRV_PCM_STREAM_CAPTURE, cmd, 1);
 218 }
 219
 220 static int snd_ad1816a_hw_params(struct snd_pcm_substream *substream,
 221                                  struct snd_pcm_hw_params *hw_params)
 222 {
 223         return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
 224 }
 225
 226 static int snd_ad1816a_hw_free(struct snd_pcm_substream *substream)
 227 {
 228         return snd_pcm_lib_free_pages(substream);
 229 }
 230
 231 static int snd_ad1816a_playback_prepare(struct snd_pcm_substream *substream)
 232 {
 233         struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
 234         unsigned long flags;
 235         struct snd_pcm_runtime *runtime = substream->runtime;
 236         unsigned int size, rate;
 237
 238         spin_lock_irqsave(&chip->lock, flags);
 239
 240         chip->p_dma_size = size = snd_pcm_lib_buffer_bytes(substream);
 241         snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG,
 242                 AD1816A_PLAYBACK_ENABLE | AD1816A_PLAYBACK_PIO, 0x00);
 243
 244         snd_dma_program(chip->dma1, runtime->dma_addr, size,
 245                         DMA_MODE_WRITE | DMA_AUTOINIT);
 246
 247         rate = runtime->rate;
 248         if (chip->clock_freq)
 249                 rate = (rate * 33000) / chip->clock_freq;
 250         snd_ad1816a_write(chip, AD1816A_PLAYBACK_SAMPLE_RATE, rate);
 251         snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG,
 252                 AD1816A_FMT_ALL | AD1816A_FMT_STEREO,
 253                 snd_ad1816a_get_format(chip, runtime->format,
 254                         runtime->channels));
 255
 256         snd_ad1816a_write(chip, AD1816A_PLAYBACK_BASE_COUNT,
 257                 snd_pcm_lib_period_bytes(substream) / 4 - 1);
 258
 259         spin_unlock_irqrestore(&chip->lock, flags);
 260         return 0;
 261 }
 262
 263 static int snd_ad1816a_capture_prepare(struct snd_pcm_substream *substream)
 264 {
 265         struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
 266         unsigned long flags;
 267         struct snd_pcm_runtime *runtime = substream->runtime;
 268         unsigned int size, rate;
 269
 270         spin_lock_irqsave(&chip->lock, flags);
 271
 272         chip->c_dma_size = size = snd_pcm_lib_buffer_bytes(substream);
 273         snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG,
 274                 AD1816A_CAPTURE_ENABLE | AD1816A_CAPTURE_PIO, 0x00);
 275
 276         snd_dma_program(chip->dma2, runtime->dma_addr, size,
 277                         DMA_MODE_READ | DMA_AUTOINIT);
 278
 279         rate = runtime->rate;
 280         if (chip->clock_freq)
 281                 rate = (rate * 33000) / chip->clock_freq;
 282         snd_ad1816a_write(chip, AD1816A_CAPTURE_SAMPLE_RATE, rate);
 283         snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG,
 284                 AD1816A_FMT_ALL | AD1816A_FMT_STEREO,
 285                 snd_ad1816a_get_format(chip, runtime->format,
 286                         runtime->channels));
 287
 288         snd_ad1816a_write(chip, AD1816A_CAPTURE_BASE_COUNT,
 289                 snd_pcm_lib_period_bytes(substream) / 4 - 1);
 290
 291         spin_unlock_irqrestore(&chip->lock, flags);
 292         return 0;
 293 }
 294
 295
 296 static snd_pcm_uframes_t snd_ad1816a_playback_pointer(struct snd_pcm_substream *substream)
 297 {
 298         struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
 299         size_t ptr;
 300         if (!(chip->mode & AD1816A_MODE_PLAYBACK))
 301                 return 0;
 302         ptr = snd_dma_pointer(chip->dma1, chip->p_dma_size);
 303         return bytes_to_frames(substream->runtime, ptr);
 304 }
 305
 306 static snd_pcm_uframes_t snd_ad1816a_capture_pointer(struct snd_pcm_substream *substream)
 307 {
 308         struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
 309         size_t ptr;
 310         if (!(chip->mode & AD1816A_MODE_CAPTURE))
 311                 return 0;
 312         ptr = snd_dma_pointer(chip->dma2, chip->c_dma_size);
 313         return bytes_to_frames(substream->runtime, ptr);
 314 }
 315
 316
 317 static irqreturn_t snd_ad1816a_interrupt(int irq, void *dev_id)
 318 {
 319         struct snd_ad1816a *chip = dev_id;
 320         unsigned char status;
 321
 322         spin_lock(&chip->lock);
 323         status = snd_ad1816a_in(chip, AD1816A_INTERRUPT_STATUS);
 324         spin_unlock(&chip->lock);
 325
 326         if ((status & AD1816A_PLAYBACK_IRQ_PENDING) && chip->playback_substream)
 327                 snd_pcm_period_elapsed(chip->playback_substream);
 328
 329         if ((status & AD1816A_CAPTURE_IRQ_PENDING) && chip->capture_substream)
 330                 snd_pcm_period_elapsed(chip->capture_substream);
 331
 332         if ((status & AD1816A_TIMER_IRQ_PENDING) && chip->timer)
 333                 snd_timer_interrupt(chip->timer, chip->timer->sticks);
 334
 335         spin_lock(&chip->lock);
 336         snd_ad1816a_out(chip, AD1816A_INTERRUPT_STATUS, 0x00);
 337         spin_unlock(&chip->lock);
 338         return IRQ_HANDLED;
 339 }
 340
 341
 342 static struct snd_pcm_hardware snd_ad1816a_playback = {
 343         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 344                                  SNDRV_PCM_INFO_MMAP_VALID),
 345         .formats =              (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW |
 346                                  SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
 347                                  SNDRV_PCM_FMTBIT_S16_BE),
 348         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
 349         .rate_min =             4000,
 350         .rate_max =             55200,
 351         .channels_min =         1,
 352         .channels_max =         2,
 353         .buffer_bytes_max =     (128*1024),
 354         .period_bytes_min =     64,
 355         .period_bytes_max =     (128*1024),
 356         .periods_min =          1,
 357         .periods_max =          1024,
 358         .fifo_size =            0,
 359 };
 360
 361 static struct snd_pcm_hardware snd_ad1816a_capture = {
 362         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 363                                  SNDRV_PCM_INFO_MMAP_VALID),
 364         .formats =              (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW |
 365                                  SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
 366                                  SNDRV_PCM_FMTBIT_S16_BE),
 367         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
 368         .rate_min =             4000,
 369         .rate_max =             55200,
 370         .channels_min =         1,
 371         .channels_max =         2,
 372         .buffer_bytes_max =     (128*1024),
 373         .period_bytes_min =     64,
 374         .period_bytes_max =     (128*1024),
 375         .periods_min =          1,
 376         .periods_max =          1024,
 377         .fifo_size =            0,
 378 };
 379
 380 static int snd_ad1816a_timer_close(struct snd_timer *timer)
 381 {
 382         struct snd_ad1816a *chip = snd_timer_chip(timer);
 383         snd_ad1816a_close(chip, AD1816A_MODE_TIMER);
 384         return 0;
 385 }
 386
 387 static int snd_ad1816a_timer_open(struct snd_timer *timer)
 388 {
 389         struct snd_ad1816a *chip = snd_timer_chip(timer);
 390         snd_ad1816a_open(chip, AD1816A_MODE_TIMER);
 391         return 0;
 392 }
 393
 394 static unsigned long snd_ad1816a_timer_resolution(struct snd_timer *timer)
 395 {
 396         if (snd_BUG_ON(!timer))
 397                 return 0;
 398
 399         return 10000;
 400 }
 401
 402 static int snd_ad1816a_timer_start(struct snd_timer *timer)
 403 {
 404         unsigned short bits;
 405         unsigned long flags;
 406         struct snd_ad1816a *chip = snd_timer_chip(timer);
 407         spin_lock_irqsave(&chip->lock, flags);
 408         bits = snd_ad1816a_read(chip, AD1816A_INTERRUPT_ENABLE);
 409
 410         if (!(bits & AD1816A_TIMER_ENABLE)) {
 411                 snd_ad1816a_write(chip, AD1816A_TIMER_BASE_COUNT,
 412                         timer->sticks & 0xffff);
 413
 414                 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
 415                         AD1816A_TIMER_ENABLE, 0xffff);
 416         }
 417         spin_unlock_irqrestore(&chip->lock, flags);
 418         return 0;
 419 }
 420
 421 static int snd_ad1816a_timer_stop(struct snd_timer *timer)
 422 {
 423         unsigned long flags;
 424         struct snd_ad1816a *chip = snd_timer_chip(timer);
 425         spin_lock_irqsave(&chip->lock, flags);
 426
 427         snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
 428                 AD1816A_TIMER_ENABLE, 0x0000);
 429
 430         spin_unlock_irqrestore(&chip->lock, flags);
 431         return 0;
 432 }
 433
 434 static struct snd_timer_hardware snd_ad1816a_timer_table = {
 435         .flags =        SNDRV_TIMER_HW_AUTO,
 436         .resolution =   10000,
 437         .ticks =        65535,
 438         .open =         snd_ad1816a_timer_open,
 439         .close =        snd_ad1816a_timer_close,
 440         .c_resolution = snd_ad1816a_timer_resolution,
 441         .start =        snd_ad1816a_timer_start,
 442         .stop =         snd_ad1816a_timer_stop,
 443 };
 444
 445 static int snd_ad1816a_playback_open(struct snd_pcm_substream *substream)
 446 {
 447         struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
 448         struct snd_pcm_runtime *runtime = substream->runtime;
 449         int error;
 450
 451         if ((error = snd_ad1816a_open(chip, AD1816A_MODE_PLAYBACK)) < 0)
 452                 return error;
 453         runtime->hw = snd_ad1816a_playback;
 454         snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.buffer_bytes_max);
 455         snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.period_bytes_max);
 456         chip->playback_substream = substream;
 457         return 0;
 458 }
 459
 460 static int snd_ad1816a_capture_open(struct snd_pcm_substream *substream)
 461 {
 462         struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
 463         struct snd_pcm_runtime *runtime = substream->runtime;
 464         int error;
 465
 466         if ((error = snd_ad1816a_open(chip, AD1816A_MODE_CAPTURE)) < 0)
 467                 return error;
 468         runtime->hw = snd_ad1816a_capture;
 469         snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.buffer_bytes_max);
 470         snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.period_bytes_max);
 471         chip->capture_substream = substream;
 472         return 0;
 473 }
 474
 475 static int snd_ad1816a_playback_close(struct snd_pcm_substream *substream)
 476 {
 477         struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
 478
 479         chip->playback_substream = NULL;
 480         snd_ad1816a_close(chip, AD1816A_MODE_PLAYBACK);
 481         return 0;
 482 }
 483
 484 static int snd_ad1816a_capture_close(struct snd_pcm_substream *substream)
 485 {
 486         struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
 487
 488         chip->capture_substream = NULL;
 489         snd_ad1816a_close(chip, AD1816A_MODE_CAPTURE);
 490         return 0;
 491 }
 492
 493
 494 static void snd_ad1816a_init(struct snd_ad1816a *chip)
 495 {
 496         unsigned long flags;
 497
 498         spin_lock_irqsave(&chip->lock, flags);
 499
 500         snd_ad1816a_out(chip, AD1816A_INTERRUPT_STATUS, 0x00);
 501         snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG,
 502                 AD1816A_PLAYBACK_ENABLE | AD1816A_PLAYBACK_PIO, 0x00);
 503         snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG,
 504                 AD1816A_CAPTURE_ENABLE | AD1816A_CAPTURE_PIO, 0x00);
 505         snd_ad1816a_write(chip, AD1816A_INTERRUPT_ENABLE, 0x0000);
 506         snd_ad1816a_write_mask(chip, AD1816A_CHIP_CONFIG,
 507                 AD1816A_CAPTURE_NOT_EQUAL | AD1816A_WSS_ENABLE, 0xffff);
 508         snd_ad1816a_write(chip, AD1816A_DSP_CONFIG, 0x0000);
 509         snd_ad1816a_write(chip, AD1816A_POWERDOWN_CTRL, 0x0000);
 510
 511         spin_unlock_irqrestore(&chip->lock, flags);
 512 }
 513
 514 #ifdef CONFIG_PM
 515 void snd_ad1816a_suspend(struct snd_ad1816a *chip)
 516 {
 517         int reg;
 518         unsigned long flags;
 519
 520         snd_pcm_suspend_all(chip->pcm);
 521         spin_lock_irqsave(&chip->lock, flags);
 522         for (reg = 0; reg < 48; reg++)
 523                 chip->image[reg] = snd_ad1816a_read(chip, reg);
 524         spin_unlock_irqrestore(&chip->lock, flags);
 525 }
 526
 527 void snd_ad1816a_resume(struct snd_ad1816a *chip)
 528 {
 529         int reg;
 530         unsigned long flags;
 531
 532         snd_ad1816a_init(chip);
 533         spin_lock_irqsave(&chip->lock, flags);
 534         for (reg = 0; reg < 48; reg++)
 535                 snd_ad1816a_write(chip, reg, chip->image[reg]);
 536         spin_unlock_irqrestore(&chip->lock, flags);
 537 }
 538 #endif
 539
 540 static int snd_ad1816a_probe(struct snd_ad1816a *chip)
 541 {
 542         unsigned long flags;
 543
 544         spin_lock_irqsave(&chip->lock, flags);
 545
 546         switch (chip->version = snd_ad1816a_read(chip, AD1816A_VERSION_ID)) {
 547         case 0:
 548                 chip->hardware = AD1816A_HW_AD1815;
 549                 break;
 550         case 1:
 551                 chip->hardware = AD1816A_HW_AD18MAX10;
 552                 break;
 553         case 3:
 554                 chip->hardware = AD1816A_HW_AD1816A;
 555                 break;
 556         default:
 557                 chip->hardware = AD1816A_HW_AUTO;
 558         }
 559
 560         spin_unlock_irqrestore(&chip->lock, flags);
 561         return 0;
 562 }
 563
 564 static int snd_ad1816a_free(struct snd_ad1816a *chip)
 565 {
 566         release_and_free_resource(chip->res_port);
 567         if (chip->irq >= 0)
 568                 free_irq(chip->irq, (void *) chip);
 569         if (chip->dma1 >= 0) {
 570                 snd_dma_disable(chip->dma1);
 571                 free_dma(chip->dma1);
 572         }
 573         if (chip->dma2 >= 0) {
 574                 snd_dma_disable(chip->dma2);
 575                 free_dma(chip->dma2);
 576         }
 577         return 0;
 578 }
 579
 580 static int snd_ad1816a_dev_free(struct snd_device *device)
 581 {
 582         struct snd_ad1816a *chip = device->device_data;
 583         return snd_ad1816a_free(chip);
 584 }
 585
 586 static const char *snd_ad1816a_chip_id(struct snd_ad1816a *chip)
 587 {
 588         switch (chip->hardware) {
 589         case AD1816A_HW_AD1816A: return "AD1816A";
 590         case AD1816A_HW_AD1815: return "AD1815";
 591         case AD1816A_HW_AD18MAX10: return "AD18max10";
 592         default:
 593                 snd_printk(KERN_WARNING "Unknown chip version %d:%d.\n",
 594                         chip->version, chip->hardware);
 595                 return "AD1816A - unknown";
 596         }
 597 }
 598
 599 int snd_ad1816a_create(struct snd_card *card,
 600                        unsigned long port, int irq, int dma1, int dma2,
 601                        struct snd_ad1816a *chip)
 602 {
 603         static struct snd_device_ops ops = {
 604                 .dev_free =     snd_ad1816a_dev_free,
 605         };
 606         int error;
 607
 608         chip->irq = -1;
 609         chip->dma1 = -1;
 610         chip->dma2 = -1;
 611
 612         if ((chip->res_port = request_region(port, 16, "AD1816A")) == NULL) {
 613                 snd_printk(KERN_ERR "ad1816a: can't grab port 0x%lx\n", port);
 614                 snd_ad1816a_free(chip);
 615                 return -EBUSY;
 616         }
 617         if (request_irq(irq, snd_ad1816a_interrupt, 0, "AD1816A", (void *) chip)) {
 618                 snd_printk(KERN_ERR "ad1816a: can't grab IRQ %d\n", irq);
 619                 snd_ad1816a_free(chip);
 620                 return -EBUSY;
 621         }
 622         chip->irq = irq;
 623         if (request_dma(dma1, "AD1816A - 1")) {
 624                 snd_printk(KERN_ERR "ad1816a: can't grab DMA1 %d\n", dma1);
 625                 snd_ad1816a_free(chip);
 626                 return -EBUSY;
 627         }
 628         chip->dma1 = dma1;
 629         if (request_dma(dma2, "AD1816A - 2")) {
 630                 snd_printk(KERN_ERR "ad1816a: can't grab DMA2 %d\n", dma2);
 631                 snd_ad1816a_free(chip);
 632                 return -EBUSY;
 633         }
 634         chip->dma2 = dma2;
 635
 636         chip->card = card;
 637         chip->port = port;
 638         spin_lock_init(&chip->lock);
 639
 640         if ((error = snd_ad1816a_probe(chip))) {
 641                 snd_ad1816a_free(chip);
 642                 return error;
 643         }
 644
 645         snd_ad1816a_init(chip);
 646
 647         /* Register device */
 648         if ((error = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
 649                 snd_ad1816a_free(chip);
 650                 return error;
 651         }
 652
 653         return 0;
 654 }
 655
 656 static struct snd_pcm_ops snd_ad1816a_playback_ops = {
 657         .open =         snd_ad1816a_playback_open,
 658         .close =        snd_ad1816a_playback_close,
 659         .ioctl =        snd_pcm_lib_ioctl,
 660         .hw_params =    snd_ad1816a_hw_params,
 661         .hw_free =      snd_ad1816a_hw_free,
 662         .prepare =      snd_ad1816a_playback_prepare,
 663         .trigger =      snd_ad1816a_playback_trigger,
 664         .pointer =      snd_ad1816a_playback_pointer,
 665 };
 666
 667 static struct snd_pcm_ops snd_ad1816a_capture_ops = {
 668         .open =         snd_ad1816a_capture_open,
 669         .close =        snd_ad1816a_capture_close,
 670         .ioctl =        snd_pcm_lib_ioctl,
 671         .hw_params =    snd_ad1816a_hw_params,
 672         .hw_free =      snd_ad1816a_hw_free,
 673         .prepare =      snd_ad1816a_capture_prepare,
 674         .trigger =      snd_ad1816a_capture_trigger,
 675         .pointer =      snd_ad1816a_capture_pointer,
 676 };
 677
 678 int snd_ad1816a_pcm(struct snd_ad1816a *chip, int device, struct snd_pcm **rpcm)
 679 {
 680         int error;
 681         struct snd_pcm *pcm;
 682
 683         if ((error = snd_pcm_new(chip->card, "AD1816A", device, 1, 1, &pcm)))
 684                 return error;
 685
 686         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ad1816a_playback_ops);
 687         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ad1816a_capture_ops);
 688
 689         pcm->private_data = chip;
 690         pcm->info_flags = (chip->dma1 == chip->dma2 ) ? SNDRV_PCM_INFO_JOINT_DUPLEX : 0;
 691
 692         strcpy(pcm->name, snd_ad1816a_chip_id(chip));
 693         snd_ad1816a_init(chip);
 694
 695         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
 696                                               snd_dma_isa_data(),
 697                                               64*1024, chip->dma1 > 3 || chip->dma2 > 3 ? 128*1024 : 64*1024);
 698
 699         chip->pcm = pcm;
 700         if (rpcm)
 701                 *rpcm = pcm;
 702         return 0;
 703 }
 704
 705 int snd_ad1816a_timer(struct snd_ad1816a *chip, int device,
 706                       struct snd_timer **rtimer)
 707 {
 708         struct snd_timer *timer;
 709         struct snd_timer_id tid;
 710         int error;
 711
 712         tid.dev_class = SNDRV_TIMER_CLASS_CARD;
 713         tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE;
 714         tid.card = chip->card->number;
 715         tid.device = device;
 716         tid.subdevice = 0;
 717         if ((error = snd_timer_new(chip->card, "AD1816A", &tid, &timer)) < 0)
 718                 return error;
 719         strcpy(timer->name, snd_ad1816a_chip_id(chip));
 720         timer->private_data = chip;
 721         chip->timer = timer;
 722         timer->hw = snd_ad1816a_timer_table;
 723         if (rtimer)
 724                 *rtimer = timer;
 725         return 0;
 726 }
 727
 728 /*
 729  *
 730  */
 731
 732 static int snd_ad1816a_info_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 733 {
 734         static char *texts[8] = {
 735                 "Line", "Mix", "CD", "Synth", "Video",
 736                 "Mic", "Phone",
 737         };
 738
 739         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 740         uinfo->count = 2;
 741         uinfo->value.enumerated.items = 7;
 742         if (uinfo->value.enumerated.item > 6)
 743                 uinfo->value.enumerated.item = 6;
 744         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
 745         return 0;
 746 }
 747
 748 static int snd_ad1816a_get_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 749 {
 750         struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
 751         unsigned long flags;
 752         unsigned short val;
 753
 754         spin_lock_irqsave(&chip->lock, flags);
 755         val = snd_ad1816a_read(chip, AD1816A_ADC_SOURCE_SEL);
 756         spin_unlock_irqrestore(&chip->lock, flags);
 757         ucontrol->value.enumerated.item[0] = (val >> 12) & 7;
 758         ucontrol->value.enumerated.item[1] = (val >> 4) & 7;
 759         return 0;
 760 }
 761
 762 static int snd_ad1816a_put_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 763 {
 764         struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
 765         unsigned long flags;
 766         unsigned short val;
 767         int change;
 768
 769         if (ucontrol->value.enumerated.item[0] > 6 ||
 770             ucontrol->value.enumerated.item[1] > 6)
 771                 return -EINVAL;
 772         val = (ucontrol->value.enumerated.item[0] << 12) |
 773               (ucontrol->value.enumerated.item[1] << 4);
 774         spin_lock_irqsave(&chip->lock, flags);
 775         change = snd_ad1816a_read(chip, AD1816A_ADC_SOURCE_SEL) != val;
 776         snd_ad1816a_write(chip, AD1816A_ADC_SOURCE_SEL, val);
 777         spin_unlock_irqrestore(&chip->lock, flags);
 778         return change;
 779 }
 780
 781 #define AD1816A_SINGLE_TLV(xname, reg, shift, mask, invert, xtlv)       \
 782 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
 783   .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
 784   .name = xname, .info = snd_ad1816a_info_single, \
 785   .get = snd_ad1816a_get_single, .put = snd_ad1816a_put_single, \
 786   .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24), \
 787   .tlv = { .p = (xtlv) } }
 788 #define AD1816A_SINGLE(xname, reg, shift, mask, invert) \
 789 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ad1816a_info_single, \
 790   .get = snd_ad1816a_get_single, .put = snd_ad1816a_put_single, \
 791   .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
 792
 793 static int snd_ad1816a_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 794 {
 795         int mask = (kcontrol->private_value >> 16) & 0xff;
 796
 797         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 798         uinfo->count = 1;
 799         uinfo->value.integer.min = 0;
 800         uinfo->value.integer.max = mask;
 801         return 0;
 802 }
 803
 804 static int snd_ad1816a_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 805 {
 806         struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
 807         unsigned long flags;
 808         int reg = kcontrol->private_value & 0xff;
 809         int shift = (kcontrol->private_value >> 8) & 0xff;
 810         int mask = (kcontrol->private_value >> 16) & 0xff;
 811         int invert = (kcontrol->private_value >> 24) & 0xff;
 812
 813         spin_lock_irqsave(&chip->lock, flags);
 814         ucontrol->value.integer.value[0] = (snd_ad1816a_read(chip, reg) >> shift) & mask;
 815         spin_unlock_irqrestore(&chip->lock, flags);
 816         if (invert)
 817                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
 818         return 0;
 819 }
 820
 821 static int snd_ad1816a_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 822 {
 823         struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
 824         unsigned long flags;
 825         int reg = kcontrol->private_value & 0xff;
 826         int shift = (kcontrol->private_value >> 8) & 0xff;
 827         int mask = (kcontrol->private_value >> 16) & 0xff;
 828         int invert = (kcontrol->private_value >> 24) & 0xff;
 829         int change;
 830         unsigned short old_val, val;
 831
 832         val = (ucontrol->value.integer.value[0] & mask);
 833         if (invert)
 834                 val = mask - val;
 835         val <<= shift;
 836         spin_lock_irqsave(&chip->lock, flags);
 837         old_val = snd_ad1816a_read(chip, reg);
 838         val = (old_val & ~(mask << shift)) | val;
 839         change = val != old_val;
 840         snd_ad1816a_write(chip, reg, val);
 841         spin_unlock_irqrestore(&chip->lock, flags);
 842         return change;
 843 }
 844
 845 #define AD1816A_DOUBLE_TLV(xname, reg, shift_left, shift_right, mask, invert, xtlv) \
 846 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
 847   .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
 848   .name = xname, .info = snd_ad1816a_info_double,               \
 849   .get = snd_ad1816a_get_double, .put = snd_ad1816a_put_double, \
 850   .private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24), \
 851   .tlv = { .p = (xtlv) } }
 852
 853 #define AD1816A_DOUBLE(xname, reg, shift_left, shift_right, mask, invert) \
 854 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ad1816a_info_double, \
 855   .get = snd_ad1816a_get_double, .put = snd_ad1816a_put_double, \
 856   .private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24) }
 857
 858 static int snd_ad1816a_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 859 {
 860         int mask = (kcontrol->private_value >> 16) & 0xff;
 861
 862         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 863         uinfo->count = 2;
 864         uinfo->value.integer.min = 0;
 865         uinfo->value.integer.max = mask;
 866         return 0;
 867 }
 868
 869 static int snd_ad1816a_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 870 {
 871         struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
 872         unsigned long flags;
 873         int reg = kcontrol->private_value & 0xff;
 874         int shift_left = (kcontrol->private_value >> 8) & 0x0f;
 875         int shift_right = (kcontrol->private_value >> 12) & 0x0f;
 876         int mask = (kcontrol->private_value >> 16) & 0xff;
 877         int invert = (kcontrol->private_value >> 24) & 0xff;
 878         unsigned short val;
 879
 880         spin_lock_irqsave(&chip->lock, flags);
 881         val = snd_ad1816a_read(chip, reg);
 882         ucontrol->value.integer.value[0] = (val >> shift_left) & mask;
 883         ucontrol->value.integer.value[1] = (val >> shift_right) & mask;
 884         spin_unlock_irqrestore(&chip->lock, flags);
 885         if (invert) {
 886                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
 887                 ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
 888         }
 889         return 0;
 890 }
 891
 892 static int snd_ad1816a_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 893 {
 894         struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
 895         unsigned long flags;
 896         int reg = kcontrol->private_value & 0xff;
 897         int shift_left = (kcontrol->private_value >> 8) & 0x0f;
 898         int shift_right = (kcontrol->private_value >> 12) & 0x0f;
 899         int mask = (kcontrol->private_value >> 16) & 0xff;
 900         int invert = (kcontrol->private_value >> 24) & 0xff;
 901         int change;
 902         unsigned short old_val, val1, val2;
 903
 904         val1 = ucontrol->value.integer.value[0] & mask;
 905         val2 = ucontrol->value.integer.value[1] & mask;
 906         if (invert) {
 907                 val1 = mask - val1;
 908                 val2 = mask - val2;
 909         }
 910         val1 <<= shift_left;
 911         val2 <<= shift_right;
 912         spin_lock_irqsave(&chip->lock, flags);
 913         old_val = snd_ad1816a_read(chip, reg);
 914         val1 = (old_val & ~((mask << shift_left) | (mask << shift_right))) | val1 | val2;
 915         change = val1 != old_val;
 916         snd_ad1816a_write(chip, reg, val1);
 917         spin_unlock_irqrestore(&chip->lock, flags);
 918         return change;
 919 }
 920
 921 static const DECLARE_TLV_DB_SCALE(db_scale_4bit, -4500, 300, 0);
 922 static const DECLARE_TLV_DB_SCALE(db_scale_5bit, -4650, 150, 0);
 923 static const DECLARE_TLV_DB_SCALE(db_scale_6bit, -9450, 150, 0);
 924 static const DECLARE_TLV_DB_SCALE(db_scale_5bit_12db_max, -3450, 150, 0);
 925 static const DECLARE_TLV_DB_SCALE(db_scale_rec_gain, 0, 150, 0);
 926
 927 static struct snd_kcontrol_new snd_ad1816a_controls[] = {
 928 AD1816A_DOUBLE("Master Playback Switch", AD1816A_MASTER_ATT, 15, 7, 1, 1),
 929 AD1816A_DOUBLE_TLV("Master Playback Volume", AD1816A_MASTER_ATT, 8, 0, 31, 1,
 930                    db_scale_5bit),
 931 AD1816A_DOUBLE("PCM Playback Switch", AD1816A_VOICE_ATT, 15, 7, 1, 1),
 932 AD1816A_DOUBLE_TLV("PCM Playback Volume", AD1816A_VOICE_ATT, 8, 0, 63, 1,
 933                    db_scale_6bit),
 934 AD1816A_DOUBLE("Line Playback Switch", AD1816A_LINE_GAIN_ATT, 15, 7, 1, 1),
 935 AD1816A_DOUBLE_TLV("Line Playback Volume", AD1816A_LINE_GAIN_ATT, 8, 0, 31, 1,
 936                    db_scale_5bit_12db_max),
 937 AD1816A_DOUBLE("CD Playback Switch", AD1816A_CD_GAIN_ATT, 15, 7, 1, 1),
 938 AD1816A_DOUBLE_TLV("CD Playback Volume", AD1816A_CD_GAIN_ATT, 8, 0, 31, 1,
 939                    db_scale_5bit_12db_max),
 940 AD1816A_DOUBLE("Synth Playback Switch", AD1816A_SYNTH_GAIN_ATT, 15, 7, 1, 1),
 941 AD1816A_DOUBLE_TLV("Synth Playback Volume", AD1816A_SYNTH_GAIN_ATT, 8, 0, 31, 1,
 942                    db_scale_5bit_12db_max),
 943 AD1816A_DOUBLE("FM Playback Switch", AD1816A_FM_ATT, 15, 7, 1, 1),
 944 AD1816A_DOUBLE_TLV("FM Playback Volume", AD1816A_FM_ATT, 8, 0, 63, 1,
 945                    db_scale_6bit),
 946 AD1816A_SINGLE("Mic Playback Switch", AD1816A_MIC_GAIN_ATT, 15, 1, 1),
 947 AD1816A_SINGLE_TLV("Mic Playback Volume", AD1816A_MIC_GAIN_ATT, 8, 31, 1,
 948                    db_scale_5bit_12db_max),
 949 AD1816A_SINGLE("Mic Boost", AD1816A_MIC_GAIN_ATT, 14, 1, 0),
 950 AD1816A_DOUBLE("Video Playback Switch", AD1816A_VID_GAIN_ATT, 15, 7, 1, 1),
 951 AD1816A_DOUBLE_TLV("Video Playback Volume", AD1816A_VID_GAIN_ATT, 8, 0, 31, 1,
 952                    db_scale_5bit_12db_max),
 953 AD1816A_SINGLE("Phone Capture Switch", AD1816A_PHONE_IN_GAIN_ATT, 15, 1, 1),
 954 AD1816A_SINGLE_TLV("Phone Capture Volume", AD1816A_PHONE_IN_GAIN_ATT, 0, 15, 1,
 955                    db_scale_4bit),
 956 AD1816A_SINGLE("Phone Playback Switch", AD1816A_PHONE_OUT_ATT, 7, 1, 1),
 957 AD1816A_SINGLE_TLV("Phone Playback Volume", AD1816A_PHONE_OUT_ATT, 0, 31, 1,
 958                    db_scale_5bit),
 959 {
 960         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 961         .name = "Capture Source",
 962         .info = snd_ad1816a_info_mux,
 963         .get = snd_ad1816a_get_mux,
 964         .put = snd_ad1816a_put_mux,
 965 },
 966 AD1816A_DOUBLE("Capture Switch", AD1816A_ADC_PGA, 15, 7, 1, 1),
 967 AD1816A_DOUBLE_TLV("Capture Volume", AD1816A_ADC_PGA, 8, 0, 15, 0,
 968                    db_scale_rec_gain),
 969 AD1816A_SINGLE("3D Control - Switch", AD1816A_3D_PHAT_CTRL, 15, 1, 1),
 970 AD1816A_SINGLE("3D Control - Level", AD1816A_3D_PHAT_CTRL, 0, 15, 0),
 971 };
 972
 973 int snd_ad1816a_mixer(struct snd_ad1816a *chip)
 974 {
 975         struct snd_card *card;
 976         unsigned int idx;
 977         int err;
 978
 979         if (snd_BUG_ON(!chip || !chip->card))
 980                 return -EINVAL;
 981
 982         card = chip->card;
 983
 984         strcpy(card->mixername, snd_ad1816a_chip_id(chip));
 985
 986         for (idx = 0; idx < ARRAY_SIZE(snd_ad1816a_controls); idx++) {
 987                 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_ad1816a_controls[idx], chip))) < 0)
 988                         return err;
 989         }
 990         return 0;
 991 }