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