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 <sound/driver.h>
  21 #include <linux/delay.h>
  22 #include <linux/init.h>
  23 #include <linux/interrupt.h>
  24 #include <linux/slab.h>
  25 #include <linux/ioport.h>
  26 #include <sound/core.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("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("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, struct pt_regs *regs)
 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 #if 0 /* not used now */
 381 static int snd_ad1816a_timer_close(struct snd_timer *timer)
 382 {
 383         struct snd_ad1816a *chip = snd_timer_chip(timer);
 384         snd_ad1816a_close(chip, AD1816A_MODE_TIMER);
 385         return 0;
 386 }
 387
 388 static int snd_ad1816a_timer_open(struct snd_timer *timer)
 389 {
 390         struct snd_ad1816a *chip = snd_timer_chip(timer);
 391         snd_ad1816a_open(chip, AD1816A_MODE_TIMER);
 392         return 0;
 393 }
 394
 395 static unsigned long snd_ad1816a_timer_resolution(struct snd_timer *timer)
 396 {
 397         snd_assert(timer != NULL, 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 #endif /* not used now */
 445
 446
 447 static int snd_ad1816a_playback_open(struct snd_pcm_substream *substream)
 448 {
 449         struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
 450         struct snd_pcm_runtime *runtime = substream->runtime;
 451         int error;
 452
 453         if ((error = snd_ad1816a_open(chip, AD1816A_MODE_PLAYBACK)) < 0)
 454                 return error;
 455         snd_pcm_set_sync(substream);
 456         runtime->hw = snd_ad1816a_playback;
 457         snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.buffer_bytes_max);
 458         snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.period_bytes_max);
 459         chip->playback_substream = substream;
 460         return 0;
 461 }
 462
 463 static int snd_ad1816a_capture_open(struct snd_pcm_substream *substream)
 464 {
 465         struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
 466         struct snd_pcm_runtime *runtime = substream->runtime;
 467         int error;
 468
 469         if ((error = snd_ad1816a_open(chip, AD1816A_MODE_CAPTURE)) < 0)
 470                 return error;
 471         snd_pcm_set_sync(substream);
 472         runtime->hw = snd_ad1816a_capture;
 473         snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.buffer_bytes_max);
 474         snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.period_bytes_max);
 475         chip->capture_substream = substream;
 476         return 0;
 477 }
 478
 479 static int snd_ad1816a_playback_close(struct snd_pcm_substream *substream)
 480 {
 481         struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
 482
 483         chip->playback_substream = NULL;
 484         snd_ad1816a_close(chip, AD1816A_MODE_PLAYBACK);
 485         return 0;
 486 }
 487
 488 static int snd_ad1816a_capture_close(struct snd_pcm_substream *substream)
 489 {
 490         struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
 491
 492         chip->capture_substream = NULL;
 493         snd_ad1816a_close(chip, AD1816A_MODE_CAPTURE);
 494         return 0;
 495 }
 496
 497
 498 static void __devinit snd_ad1816a_init(struct snd_ad1816a *chip)
 499 {
 500         unsigned long flags;
 501
 502         spin_lock_irqsave(&chip->lock, flags);
 503
 504         snd_ad1816a_out(chip, AD1816A_INTERRUPT_STATUS, 0x00);
 505         snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG,
 506                 AD1816A_PLAYBACK_ENABLE | AD1816A_PLAYBACK_PIO, 0x00);
 507         snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG,
 508                 AD1816A_CAPTURE_ENABLE | AD1816A_CAPTURE_PIO, 0x00);
 509         snd_ad1816a_write(chip, AD1816A_INTERRUPT_ENABLE, 0x0000);
 510         snd_ad1816a_write_mask(chip, AD1816A_CHIP_CONFIG,
 511                 AD1816A_CAPTURE_NOT_EQUAL | AD1816A_WSS_ENABLE, 0xffff);
 512         snd_ad1816a_write(chip, AD1816A_DSP_CONFIG, 0x0000);
 513         snd_ad1816a_write(chip, AD1816A_POWERDOWN_CTRL, 0x0000);
 514
 515         spin_unlock_irqrestore(&chip->lock, flags);
 516 }
 517
 518 static int __devinit snd_ad1816a_probe(struct snd_ad1816a *chip)
 519 {
 520         unsigned long flags;
 521
 522         spin_lock_irqsave(&chip->lock, flags);
 523
 524         switch (chip->version = snd_ad1816a_read(chip, AD1816A_VERSION_ID)) {
 525         case 0:
 526                 chip->hardware = AD1816A_HW_AD1815;
 527                 break;
 528         case 1:
 529                 chip->hardware = AD1816A_HW_AD18MAX10;
 530                 break;
 531         case 3:
 532                 chip->hardware = AD1816A_HW_AD1816A;
 533                 break;
 534         default:
 535                 chip->hardware = AD1816A_HW_AUTO;
 536         }
 537
 538         spin_unlock_irqrestore(&chip->lock, flags);
 539         return 0;
 540 }
 541
 542 static int snd_ad1816a_free(struct snd_ad1816a *chip)
 543 {
 544         release_and_free_resource(chip->res_port);
 545         if (chip->irq >= 0)
 546                 free_irq(chip->irq, (void *) chip);
 547         if (chip->dma1 >= 0) {
 548                 snd_dma_disable(chip->dma1);
 549                 free_dma(chip->dma1);
 550         }
 551         if (chip->dma2 >= 0) {
 552                 snd_dma_disable(chip->dma2);
 553                 free_dma(chip->dma2);
 554         }
 555         kfree(chip);
 556         return 0;
 557 }
 558
 559 static int snd_ad1816a_dev_free(struct snd_device *device)
 560 {
 561         struct snd_ad1816a *chip = device->device_data;
 562         return snd_ad1816a_free(chip);
 563 }
 564
 565 static const char __devinit *snd_ad1816a_chip_id(struct snd_ad1816a *chip)
 566 {
 567         switch (chip->hardware) {
 568         case AD1816A_HW_AD1816A: return "AD1816A";
 569         case AD1816A_HW_AD1815: return "AD1815";
 570         case AD1816A_HW_AD18MAX10: return "AD18max10";
 571         default:
 572                 snd_printk("Unknown chip version %d:%d.\n",
 573                         chip->version, chip->hardware);
 574                 return "AD1816A - unknown";
 575         }
 576 }
 577
 578 int __devinit snd_ad1816a_create(struct snd_card *card,
 579                                  unsigned long port, int irq, int dma1, int dma2,
 580                                  struct snd_ad1816a **rchip)
 581 {
 582         static struct snd_device_ops ops = {
 583                 .dev_free =     snd_ad1816a_dev_free,
 584         };
 585         int error;
 586         struct snd_ad1816a *chip;
 587
 588         *rchip = NULL;
 589
 590         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
 591         if (chip == NULL)
 592                 return -ENOMEM;
 593         chip->irq = -1;
 594         chip->dma1 = -1;
 595         chip->dma2 = -1;
 596
 597         if ((chip->res_port = request_region(port, 16, "AD1816A")) == NULL) {
 598                 snd_printk(KERN_ERR "ad1816a: can't grab port 0x%lx\n", port);
 599                 snd_ad1816a_free(chip);
 600                 return -EBUSY;
 601         }
 602         if (request_irq(irq, snd_ad1816a_interrupt, IRQF_DISABLED, "AD1816A", (void *) chip)) {
 603                 snd_printk(KERN_ERR "ad1816a: can't grab IRQ %d\n", irq);
 604                 snd_ad1816a_free(chip);
 605                 return -EBUSY;
 606         }
 607         chip->irq = irq;
 608         if (request_dma(dma1, "AD1816A - 1")) {
 609                 snd_printk(KERN_ERR "ad1816a: can't grab DMA1 %d\n", dma1);
 610                 snd_ad1816a_free(chip);
 611                 return -EBUSY;
 612         }
 613         chip->dma1 = dma1;
 614         if (request_dma(dma2, "AD1816A - 2")) {
 615                 snd_printk(KERN_ERR "ad1816a: can't grab DMA2 %d\n", dma2);
 616                 snd_ad1816a_free(chip);
 617                 return -EBUSY;
 618         }
 619         chip->dma2 = dma2;
 620
 621         chip->card = card;
 622         chip->port = port;
 623         spin_lock_init(&chip->lock);
 624
 625         if ((error = snd_ad1816a_probe(chip))) {
 626                 snd_ad1816a_free(chip);
 627                 return error;
 628         }
 629
 630         snd_ad1816a_init(chip);
 631
 632         /* Register device */
 633         if ((error = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
 634                 snd_ad1816a_free(chip);
 635                 return error;
 636         }
 637
 638         *rchip = chip;
 639         return 0;
 640 }
 641
 642 static struct snd_pcm_ops snd_ad1816a_playback_ops = {
 643         .open =         snd_ad1816a_playback_open,
 644         .close =        snd_ad1816a_playback_close,
 645         .ioctl =        snd_pcm_lib_ioctl,
 646         .hw_params =    snd_ad1816a_hw_params,
 647         .hw_free =      snd_ad1816a_hw_free,
 648         .prepare =      snd_ad1816a_playback_prepare,
 649         .trigger =      snd_ad1816a_playback_trigger,
 650         .pointer =      snd_ad1816a_playback_pointer,
 651 };
 652
 653 static struct snd_pcm_ops snd_ad1816a_capture_ops = {
 654         .open =         snd_ad1816a_capture_open,
 655         .close =        snd_ad1816a_capture_close,
 656         .ioctl =        snd_pcm_lib_ioctl,
 657         .hw_params =    snd_ad1816a_hw_params,
 658         .hw_free =      snd_ad1816a_hw_free,
 659         .prepare =      snd_ad1816a_capture_prepare,
 660         .trigger =      snd_ad1816a_capture_trigger,
 661         .pointer =      snd_ad1816a_capture_pointer,
 662 };
 663
 664 int __devinit snd_ad1816a_pcm(struct snd_ad1816a *chip, int device, struct snd_pcm **rpcm)
 665 {
 666         int error;
 667         struct snd_pcm *pcm;
 668
 669         if ((error = snd_pcm_new(chip->card, "AD1816A", device, 1, 1, &pcm)))
 670                 return error;
 671
 672         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ad1816a_playback_ops);
 673         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ad1816a_capture_ops);
 674
 675         pcm->private_data = chip;
 676         pcm->info_flags = (chip->dma1 == chip->dma2 ) ? SNDRV_PCM_INFO_JOINT_DUPLEX : 0;
 677
 678         strcpy(pcm->name, snd_ad1816a_chip_id(chip));
 679         snd_ad1816a_init(chip);
 680
 681         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
 682                                               snd_dma_isa_data(),
 683                                               64*1024, chip->dma1 > 3 || chip->dma2 > 3 ? 128*1024 : 64*1024);
 684
 685         chip->pcm = pcm;
 686         if (rpcm)
 687                 *rpcm = pcm;
 688         return 0;
 689 }
 690
 691 #if 0 /* not used now */
 692 int __devinit snd_ad1816a_timer(struct snd_ad1816a *chip, int device, struct snd_timer **rtimer)
 693 {
 694         struct snd_timer *timer;
 695         struct snd_timer_id tid;
 696         int error;
 697
 698         tid.dev_class = SNDRV_TIMER_CLASS_CARD;
 699         tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE;
 700         tid.card = chip->card->number;
 701         tid.device = device;
 702         tid.subdevice = 0;
 703         if ((error = snd_timer_new(chip->card, "AD1816A", &tid, &timer)) < 0)
 704                 return error;
 705         strcpy(timer->name, snd_ad1816a_chip_id(chip));
 706         timer->private_data = chip;
 707         chip->timer = timer;
 708         timer->hw = snd_ad1816a_timer_table;
 709         if (rtimer)
 710                 *rtimer = timer;
 711         return 0;
 712 }
 713 #endif /* not used now */
 714
 715 /*
 716  *
 717  */
 718
 719 static int snd_ad1816a_info_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 720 {
 721         static char *texts[8] = {
 722                 "Line", "Mix", "CD", "Synth", "Video",
 723                 "Mic", "Phone",
 724         };
 725
 726         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 727         uinfo->count = 2;
 728         uinfo->value.enumerated.items = 7;
 729         if (uinfo->value.enumerated.item > 6)
 730                 uinfo->value.enumerated.item = 6;
 731         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
 732         return 0;
 733 }
 734
 735 static int snd_ad1816a_get_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 736 {
 737         struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
 738         unsigned long flags;
 739         unsigned short val;
 740
 741         spin_lock_irqsave(&chip->lock, flags);
 742         val = snd_ad1816a_read(chip, AD1816A_ADC_SOURCE_SEL);
 743         spin_unlock_irqrestore(&chip->lock, flags);
 744         ucontrol->value.enumerated.item[0] = (val >> 12) & 7;
 745         ucontrol->value.enumerated.item[1] = (val >> 4) & 7;
 746         return 0;
 747 }
 748
 749 static int snd_ad1816a_put_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 750 {
 751         struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
 752         unsigned long flags;
 753         unsigned short val;
 754         int change;
 755
 756         if (ucontrol->value.enumerated.item[0] > 6 ||
 757             ucontrol->value.enumerated.item[1] > 6)
 758                 return -EINVAL;
 759         val = (ucontrol->value.enumerated.item[0] << 12) |
 760               (ucontrol->value.enumerated.item[1] << 4);
 761         spin_lock_irqsave(&chip->lock, flags);
 762         change = snd_ad1816a_read(chip, AD1816A_ADC_SOURCE_SEL) != val;
 763         snd_ad1816a_write(chip, AD1816A_ADC_SOURCE_SEL, val);
 764         spin_unlock_irqrestore(&chip->lock, flags);
 765         return change;
 766 }
 767
 768 #define AD1816A_SINGLE(xname, reg, shift, mask, invert) \
 769 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ad1816a_info_single, \
 770   .get = snd_ad1816a_get_single, .put = snd_ad1816a_put_single, \
 771   .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
 772
 773 static int snd_ad1816a_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 774 {
 775         int mask = (kcontrol->private_value >> 16) & 0xff;
 776
 777         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 778         uinfo->count = 1;
 779         uinfo->value.integer.min = 0;
 780         uinfo->value.integer.max = mask;
 781         return 0;
 782 }
 783
 784 static int snd_ad1816a_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 785 {
 786         struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
 787         unsigned long flags;
 788         int reg = kcontrol->private_value & 0xff;
 789         int shift = (kcontrol->private_value >> 8) & 0xff;
 790         int mask = (kcontrol->private_value >> 16) & 0xff;
 791         int invert = (kcontrol->private_value >> 24) & 0xff;
 792
 793         spin_lock_irqsave(&chip->lock, flags);
 794         ucontrol->value.integer.value[0] = (snd_ad1816a_read(chip, reg) >> shift) & mask;
 795         spin_unlock_irqrestore(&chip->lock, flags);
 796         if (invert)
 797                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
 798         return 0;
 799 }
 800
 801 static int snd_ad1816a_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 802 {
 803         struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
 804         unsigned long flags;
 805         int reg = kcontrol->private_value & 0xff;
 806         int shift = (kcontrol->private_value >> 8) & 0xff;
 807         int mask = (kcontrol->private_value >> 16) & 0xff;
 808         int invert = (kcontrol->private_value >> 24) & 0xff;
 809         int change;
 810         unsigned short old_val, val;
 811
 812         val = (ucontrol->value.integer.value[0] & mask);
 813         if (invert)
 814                 val = mask - val;
 815         val <<= shift;
 816         spin_lock_irqsave(&chip->lock, flags);
 817         old_val = snd_ad1816a_read(chip, reg);
 818         val = (old_val & ~(mask << shift)) | val;
 819         change = val != old_val;
 820         snd_ad1816a_write(chip, reg, val);
 821         spin_unlock_irqrestore(&chip->lock, flags);
 822         return change;
 823 }
 824
 825 #define AD1816A_DOUBLE(xname, reg, shift_left, shift_right, mask, invert) \
 826 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ad1816a_info_double, \
 827   .get = snd_ad1816a_get_double, .put = snd_ad1816a_put_double, \
 828   .private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24) }
 829
 830 static int snd_ad1816a_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 831 {
 832         int mask = (kcontrol->private_value >> 16) & 0xff;
 833
 834         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 835         uinfo->count = 2;
 836         uinfo->value.integer.min = 0;
 837         uinfo->value.integer.max = mask;
 838         return 0;
 839 }
 840
 841 static int snd_ad1816a_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 842 {
 843         struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
 844         unsigned long flags;
 845         int reg = kcontrol->private_value & 0xff;
 846         int shift_left = (kcontrol->private_value >> 8) & 0x0f;
 847         int shift_right = (kcontrol->private_value >> 12) & 0x0f;
 848         int mask = (kcontrol->private_value >> 16) & 0xff;
 849         int invert = (kcontrol->private_value >> 24) & 0xff;
 850         unsigned short val;
 851
 852         spin_lock_irqsave(&chip->lock, flags);
 853         val = snd_ad1816a_read(chip, reg);
 854         ucontrol->value.integer.value[0] = (val >> shift_left) & mask;
 855         ucontrol->value.integer.value[1] = (val >> shift_right) & mask;
 856         spin_unlock_irqrestore(&chip->lock, flags);
 857         if (invert) {
 858                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
 859                 ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
 860         }
 861         return 0;
 862 }
 863
 864 static int snd_ad1816a_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 865 {
 866         struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
 867         unsigned long flags;
 868         int reg = kcontrol->private_value & 0xff;
 869         int shift_left = (kcontrol->private_value >> 8) & 0x0f;
 870         int shift_right = (kcontrol->private_value >> 12) & 0x0f;
 871         int mask = (kcontrol->private_value >> 16) & 0xff;
 872         int invert = (kcontrol->private_value >> 24) & 0xff;
 873         int change;
 874         unsigned short old_val, val1, val2;
 875
 876         val1 = ucontrol->value.integer.value[0] & mask;
 877         val2 = ucontrol->value.integer.value[1] & mask;
 878         if (invert) {
 879                 val1 = mask - val1;
 880                 val2 = mask - val2;
 881         }
 882         val1 <<= shift_left;
 883         val2 <<= shift_right;
 884         spin_lock_irqsave(&chip->lock, flags);
 885         old_val = snd_ad1816a_read(chip, reg);
 886         val1 = (old_val & ~((mask << shift_left) | (mask << shift_right))) | val1 | val2;
 887         change = val1 != old_val;
 888         snd_ad1816a_write(chip, reg, val1);
 889         spin_unlock_irqrestore(&chip->lock, flags);
 890         return change;
 891 }
 892
 893 static struct snd_kcontrol_new snd_ad1816a_controls[] __devinitdata = {
 894 AD1816A_DOUBLE("Master Playback Switch", AD1816A_MASTER_ATT, 15, 7, 1, 1),
 895 AD1816A_DOUBLE("Master Playback Volume", AD1816A_MASTER_ATT, 8, 0, 31, 1),
 896 AD1816A_DOUBLE("PCM Playback Switch", AD1816A_VOICE_ATT, 15, 7, 1, 1),
 897 AD1816A_DOUBLE("PCM Playback Volume", AD1816A_VOICE_ATT, 8, 0, 63, 1),
 898 AD1816A_DOUBLE("Line Playback Switch", AD1816A_LINE_GAIN_ATT, 15, 7, 1, 1),
 899 AD1816A_DOUBLE("Line Playback Volume", AD1816A_LINE_GAIN_ATT, 8, 0, 31, 1),
 900 AD1816A_DOUBLE("CD Playback Switch", AD1816A_CD_GAIN_ATT, 15, 7, 1, 1),
 901 AD1816A_DOUBLE("CD Playback Volume", AD1816A_CD_GAIN_ATT, 8, 0, 31, 1),
 902 AD1816A_DOUBLE("Synth Playback Switch", AD1816A_SYNTH_GAIN_ATT, 15, 7, 1, 1),
 903 AD1816A_DOUBLE("Synth Playback Volume", AD1816A_SYNTH_GAIN_ATT, 8, 0, 31, 1),
 904 AD1816A_DOUBLE("FM Playback Switch", AD1816A_FM_ATT, 15, 7, 1, 1),
 905 AD1816A_DOUBLE("FM Playback Volume", AD1816A_FM_ATT, 8, 0, 63, 1),
 906 AD1816A_SINGLE("Mic Playback Switch", AD1816A_MIC_GAIN_ATT, 15, 1, 1),
 907 AD1816A_SINGLE("Mic Playback Volume", AD1816A_MIC_GAIN_ATT, 8, 31, 1),
 908 AD1816A_SINGLE("Mic Boost", AD1816A_MIC_GAIN_ATT, 14, 1, 0),
 909 AD1816A_DOUBLE("Video Playback Switch", AD1816A_VID_GAIN_ATT, 15, 7, 1, 1),
 910 AD1816A_DOUBLE("Video Playback Volume", AD1816A_VID_GAIN_ATT, 8, 0, 31, 1),
 911 AD1816A_SINGLE("Phone Capture Switch", AD1816A_PHONE_IN_GAIN_ATT, 15, 1, 1),
 912 AD1816A_SINGLE("Phone Capture Volume", AD1816A_PHONE_IN_GAIN_ATT, 0, 15, 1),
 913 AD1816A_SINGLE("Phone Playback Switch", AD1816A_PHONE_OUT_ATT, 7, 1, 1),
 914 AD1816A_SINGLE("Phone Playback Volume", AD1816A_PHONE_OUT_ATT, 0, 31, 1),
 915 {
 916         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 917         .name = "Capture Source",
 918         .info = snd_ad1816a_info_mux,
 919         .get = snd_ad1816a_get_mux,
 920         .put = snd_ad1816a_put_mux,
 921 },
 922 AD1816A_DOUBLE("Capture Switch", AD1816A_ADC_PGA, 15, 7, 1, 1),
 923 AD1816A_DOUBLE("Capture Volume", AD1816A_ADC_PGA, 8, 0, 15, 0),
 924 AD1816A_SINGLE("3D Control - Switch", AD1816A_3D_PHAT_CTRL, 15, 1, 1),
 925 AD1816A_SINGLE("3D Control - Level", AD1816A_3D_PHAT_CTRL, 0, 15, 0),
 926 };
 927
 928 int __devinit snd_ad1816a_mixer(struct snd_ad1816a *chip)
 929 {
 930         struct snd_card *card;
 931         unsigned int idx;
 932         int err;
 933
 934         snd_assert(chip != NULL && chip->card != NULL, return -EINVAL);
 935
 936         card = chip->card;
 937
 938         strcpy(card->mixername, snd_ad1816a_chip_id(chip));
 939
 940         for (idx = 0; idx < ARRAY_SIZE(snd_ad1816a_controls); idx++) {
 941                 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_ad1816a_controls[idx], chip))) < 0)
 942                         return err;
 943         }
 944         return 0;
 945 }