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 <linux/io.h>
  26 #include <sound/core.h>
  27 #include <sound/tlv.h>
  28 #include <sound/ad1816a.h>
  29
  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                                             snd_pcm_format_t format,
  89                                             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(KERN_WARNING "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 const 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 const 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 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         if (snd_BUG_ON(!timer))
 398                 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
 446 static int snd_ad1816a_playback_open(struct snd_pcm_substream *substream)
 447 {
 448         struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
 449         struct snd_pcm_runtime *runtime = substream->runtime;
 450         int error;
 451
 452         if ((error = snd_ad1816a_open(chip, AD1816A_MODE_PLAYBACK)) < 0)
 453                 return error;
 454         runtime->hw = snd_ad1816a_playback;
 455         snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.buffer_bytes_max);
 456         snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.period_bytes_max);
 457         chip->playback_substream = substream;
 458         return 0;
 459 }
 460
 461 static int snd_ad1816a_capture_open(struct snd_pcm_substream *substream)
 462 {
 463         struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
 464         struct snd_pcm_runtime *runtime = substream->runtime;
 465         int error;
 466
 467         if ((error = snd_ad1816a_open(chip, AD1816A_MODE_CAPTURE)) < 0)
 468                 return error;
 469         runtime->hw = snd_ad1816a_capture;
 470         snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.buffer_bytes_max);
 471         snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.period_bytes_max);
 472         chip->capture_substream = substream;
 473         return 0;
 474 }
 475
 476 static int snd_ad1816a_playback_close(struct snd_pcm_substream *substream)
 477 {
 478         struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
 479
 480         chip->playback_substream = NULL;
 481         snd_ad1816a_close(chip, AD1816A_MODE_PLAYBACK);
 482         return 0;
 483 }
 484
 485 static int snd_ad1816a_capture_close(struct snd_pcm_substream *substream)
 486 {
 487         struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
 488
 489         chip->capture_substream = NULL;
 490         snd_ad1816a_close(chip, AD1816A_MODE_CAPTURE);
 491         return 0;
 492 }
 493
 494
 495 static void snd_ad1816a_init(struct snd_ad1816a *chip)
 496 {
 497         unsigned long flags;
 498
 499         spin_lock_irqsave(&chip->lock, flags);
 500
 501         snd_ad1816a_out(chip, AD1816A_INTERRUPT_STATUS, 0x00);
 502         snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG,
 503                 AD1816A_PLAYBACK_ENABLE | AD1816A_PLAYBACK_PIO, 0x00);
 504         snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG,
 505                 AD1816A_CAPTURE_ENABLE | AD1816A_CAPTURE_PIO, 0x00);
 506         snd_ad1816a_write(chip, AD1816A_INTERRUPT_ENABLE, 0x0000);
 507         snd_ad1816a_write_mask(chip, AD1816A_CHIP_CONFIG,
 508                 AD1816A_CAPTURE_NOT_EQUAL | AD1816A_WSS_ENABLE, 0xffff);
 509         snd_ad1816a_write(chip, AD1816A_DSP_CONFIG, 0x0000);
 510         snd_ad1816a_write(chip, AD1816A_POWERDOWN_CTRL, 0x0000);
 511
 512         spin_unlock_irqrestore(&chip->lock, flags);
 513 }
 514
 515 #ifdef CONFIG_PM
 516 void snd_ad1816a_suspend(struct snd_ad1816a *chip)
 517 {
 518         int reg;
 519         unsigned long flags;
 520
 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 const 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 const 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)
 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                                               chip->card->dev,
 697                                               64*1024, chip->dma1 > 3 || chip->dma2 > 3 ? 128*1024 : 64*1024);
 698
 699         chip->pcm = pcm;
 700         return 0;
 701 }
 702
 703 int snd_ad1816a_timer(struct snd_ad1816a *chip, int device)
 704 {
 705         struct snd_timer *timer;
 706         struct snd_timer_id tid;
 707         int error;
 708
 709         tid.dev_class = SNDRV_TIMER_CLASS_CARD;
 710         tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE;
 711         tid.card = chip->card->number;
 712         tid.device = device;
 713         tid.subdevice = 0;
 714         if ((error = snd_timer_new(chip->card, "AD1816A", &tid, &timer)) < 0)
 715                 return error;
 716         strcpy(timer->name, snd_ad1816a_chip_id(chip));
 717         timer->private_data = chip;
 718         chip->timer = timer;
 719         timer->hw = snd_ad1816a_timer_table;
 720         return 0;
 721 }
 722
 723 /*
 724  *
 725  */
 726
 727 static int snd_ad1816a_info_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 728 {
 729         static const char * const texts[8] = {
 730                 "Line", "Mix", "CD", "Synth", "Video",
 731                 "Mic", "Phone",
 732         };
 733
 734         return snd_ctl_enum_info(uinfo, 2, 7, texts);
 735 }
 736
 737 static int snd_ad1816a_get_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 738 {
 739         struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
 740         unsigned long flags;
 741         unsigned short val;
 742
 743         spin_lock_irqsave(&chip->lock, flags);
 744         val = snd_ad1816a_read(chip, AD1816A_ADC_SOURCE_SEL);
 745         spin_unlock_irqrestore(&chip->lock, flags);
 746         ucontrol->value.enumerated.item[0] = (val >> 12) & 7;
 747         ucontrol->value.enumerated.item[1] = (val >> 4) & 7;
 748         return 0;
 749 }
 750
 751 static int snd_ad1816a_put_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 752 {
 753         struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
 754         unsigned long flags;
 755         unsigned short val;
 756         int change;
 757
 758         if (ucontrol->value.enumerated.item[0] > 6 ||
 759             ucontrol->value.enumerated.item[1] > 6)
 760                 return -EINVAL;
 761         val = (ucontrol->value.enumerated.item[0] << 12) |
 762               (ucontrol->value.enumerated.item[1] << 4);
 763         spin_lock_irqsave(&chip->lock, flags);
 764         change = snd_ad1816a_read(chip, AD1816A_ADC_SOURCE_SEL) != val;
 765         snd_ad1816a_write(chip, AD1816A_ADC_SOURCE_SEL, val);
 766         spin_unlock_irqrestore(&chip->lock, flags);
 767         return change;
 768 }
 769
 770 #define AD1816A_SINGLE_TLV(xname, reg, shift, mask, invert, xtlv)       \
 771 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
 772   .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
 773   .name = xname, .info = snd_ad1816a_info_single, \
 774   .get = snd_ad1816a_get_single, .put = snd_ad1816a_put_single, \
 775   .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24), \
 776   .tlv = { .p = (xtlv) } }
 777 #define AD1816A_SINGLE(xname, reg, shift, mask, invert) \
 778 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ad1816a_info_single, \
 779   .get = snd_ad1816a_get_single, .put = snd_ad1816a_put_single, \
 780   .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
 781
 782 static int snd_ad1816a_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 783 {
 784         int mask = (kcontrol->private_value >> 16) & 0xff;
 785
 786         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 787         uinfo->count = 1;
 788         uinfo->value.integer.min = 0;
 789         uinfo->value.integer.max = mask;
 790         return 0;
 791 }
 792
 793 static int snd_ad1816a_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 794 {
 795         struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
 796         unsigned long flags;
 797         int reg = kcontrol->private_value & 0xff;
 798         int shift = (kcontrol->private_value >> 8) & 0xff;
 799         int mask = (kcontrol->private_value >> 16) & 0xff;
 800         int invert = (kcontrol->private_value >> 24) & 0xff;
 801
 802         spin_lock_irqsave(&chip->lock, flags);
 803         ucontrol->value.integer.value[0] = (snd_ad1816a_read(chip, reg) >> shift) & mask;
 804         spin_unlock_irqrestore(&chip->lock, flags);
 805         if (invert)
 806                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
 807         return 0;
 808 }
 809
 810 static int snd_ad1816a_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 811 {
 812         struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
 813         unsigned long flags;
 814         int reg = kcontrol->private_value & 0xff;
 815         int shift = (kcontrol->private_value >> 8) & 0xff;
 816         int mask = (kcontrol->private_value >> 16) & 0xff;
 817         int invert = (kcontrol->private_value >> 24) & 0xff;
 818         int change;
 819         unsigned short old_val, val;
 820
 821         val = (ucontrol->value.integer.value[0] & mask);
 822         if (invert)
 823                 val = mask - val;
 824         val <<= shift;
 825         spin_lock_irqsave(&chip->lock, flags);
 826         old_val = snd_ad1816a_read(chip, reg);
 827         val = (old_val & ~(mask << shift)) | val;
 828         change = val != old_val;
 829         snd_ad1816a_write(chip, reg, val);
 830         spin_unlock_irqrestore(&chip->lock, flags);
 831         return change;
 832 }
 833
 834 #define AD1816A_DOUBLE_TLV(xname, reg, shift_left, shift_right, mask, invert, xtlv) \
 835 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
 836   .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
 837   .name = xname, .info = snd_ad1816a_info_double,               \
 838   .get = snd_ad1816a_get_double, .put = snd_ad1816a_put_double, \
 839   .private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24), \
 840   .tlv = { .p = (xtlv) } }
 841
 842 #define AD1816A_DOUBLE(xname, reg, shift_left, shift_right, mask, invert) \
 843 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ad1816a_info_double, \
 844   .get = snd_ad1816a_get_double, .put = snd_ad1816a_put_double, \
 845   .private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24) }
 846
 847 static int snd_ad1816a_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 848 {
 849         int mask = (kcontrol->private_value >> 16) & 0xff;
 850
 851         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 852         uinfo->count = 2;
 853         uinfo->value.integer.min = 0;
 854         uinfo->value.integer.max = mask;
 855         return 0;
 856 }
 857
 858 static int snd_ad1816a_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 859 {
 860         struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
 861         unsigned long flags;
 862         int reg = kcontrol->private_value & 0xff;
 863         int shift_left = (kcontrol->private_value >> 8) & 0x0f;
 864         int shift_right = (kcontrol->private_value >> 12) & 0x0f;
 865         int mask = (kcontrol->private_value >> 16) & 0xff;
 866         int invert = (kcontrol->private_value >> 24) & 0xff;
 867         unsigned short val;
 868
 869         spin_lock_irqsave(&chip->lock, flags);
 870         val = snd_ad1816a_read(chip, reg);
 871         ucontrol->value.integer.value[0] = (val >> shift_left) & mask;
 872         ucontrol->value.integer.value[1] = (val >> shift_right) & mask;
 873         spin_unlock_irqrestore(&chip->lock, flags);
 874         if (invert) {
 875                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
 876                 ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
 877         }
 878         return 0;
 879 }
 880
 881 static int snd_ad1816a_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 882 {
 883         struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
 884         unsigned long flags;
 885         int reg = kcontrol->private_value & 0xff;
 886         int shift_left = (kcontrol->private_value >> 8) & 0x0f;
 887         int shift_right = (kcontrol->private_value >> 12) & 0x0f;
 888         int mask = (kcontrol->private_value >> 16) & 0xff;
 889         int invert = (kcontrol->private_value >> 24) & 0xff;
 890         int change;
 891         unsigned short old_val, val1, val2;
 892
 893         val1 = ucontrol->value.integer.value[0] & mask;
 894         val2 = ucontrol->value.integer.value[1] & mask;
 895         if (invert) {
 896                 val1 = mask - val1;
 897                 val2 = mask - val2;
 898         }
 899         val1 <<= shift_left;
 900         val2 <<= shift_right;
 901         spin_lock_irqsave(&chip->lock, flags);
 902         old_val = snd_ad1816a_read(chip, reg);
 903         val1 = (old_val & ~((mask << shift_left) | (mask << shift_right))) | val1 | val2;
 904         change = val1 != old_val;
 905         snd_ad1816a_write(chip, reg, val1);
 906         spin_unlock_irqrestore(&chip->lock, flags);
 907         return change;
 908 }
 909
 910 static const DECLARE_TLV_DB_SCALE(db_scale_4bit, -4500, 300, 0);
 911 static const DECLARE_TLV_DB_SCALE(db_scale_5bit, -4650, 150, 0);
 912 static const DECLARE_TLV_DB_SCALE(db_scale_6bit, -9450, 150, 0);
 913 static const DECLARE_TLV_DB_SCALE(db_scale_5bit_12db_max, -3450, 150, 0);
 914 static const DECLARE_TLV_DB_SCALE(db_scale_rec_gain, 0, 150, 0);
 915
 916 static struct snd_kcontrol_new snd_ad1816a_controls[] = {
 917 AD1816A_DOUBLE("Master Playback Switch", AD1816A_MASTER_ATT, 15, 7, 1, 1),
 918 AD1816A_DOUBLE_TLV("Master Playback Volume", AD1816A_MASTER_ATT, 8, 0, 31, 1,
 919                    db_scale_5bit),
 920 AD1816A_DOUBLE("PCM Playback Switch", AD1816A_VOICE_ATT, 15, 7, 1, 1),
 921 AD1816A_DOUBLE_TLV("PCM Playback Volume", AD1816A_VOICE_ATT, 8, 0, 63, 1,
 922                    db_scale_6bit),
 923 AD1816A_DOUBLE("Line Playback Switch", AD1816A_LINE_GAIN_ATT, 15, 7, 1, 1),
 924 AD1816A_DOUBLE_TLV("Line Playback Volume", AD1816A_LINE_GAIN_ATT, 8, 0, 31, 1,
 925                    db_scale_5bit_12db_max),
 926 AD1816A_DOUBLE("CD Playback Switch", AD1816A_CD_GAIN_ATT, 15, 7, 1, 1),
 927 AD1816A_DOUBLE_TLV("CD Playback Volume", AD1816A_CD_GAIN_ATT, 8, 0, 31, 1,
 928                    db_scale_5bit_12db_max),
 929 AD1816A_DOUBLE("Synth Playback Switch", AD1816A_SYNTH_GAIN_ATT, 15, 7, 1, 1),
 930 AD1816A_DOUBLE_TLV("Synth Playback Volume", AD1816A_SYNTH_GAIN_ATT, 8, 0, 31, 1,
 931                    db_scale_5bit_12db_max),
 932 AD1816A_DOUBLE("FM Playback Switch", AD1816A_FM_ATT, 15, 7, 1, 1),
 933 AD1816A_DOUBLE_TLV("FM Playback Volume", AD1816A_FM_ATT, 8, 0, 63, 1,
 934                    db_scale_6bit),
 935 AD1816A_SINGLE("Mic Playback Switch", AD1816A_MIC_GAIN_ATT, 15, 1, 1),
 936 AD1816A_SINGLE_TLV("Mic Playback Volume", AD1816A_MIC_GAIN_ATT, 8, 31, 1,
 937                    db_scale_5bit_12db_max),
 938 AD1816A_SINGLE("Mic Boost", AD1816A_MIC_GAIN_ATT, 14, 1, 0),
 939 AD1816A_DOUBLE("Video Playback Switch", AD1816A_VID_GAIN_ATT, 15, 7, 1, 1),
 940 AD1816A_DOUBLE_TLV("Video Playback Volume", AD1816A_VID_GAIN_ATT, 8, 0, 31, 1,
 941                    db_scale_5bit_12db_max),
 942 AD1816A_SINGLE("Phone Capture Switch", AD1816A_PHONE_IN_GAIN_ATT, 15, 1, 1),
 943 AD1816A_SINGLE_TLV("Phone Capture Volume", AD1816A_PHONE_IN_GAIN_ATT, 0, 15, 1,
 944                    db_scale_4bit),
 945 AD1816A_SINGLE("Phone Playback Switch", AD1816A_PHONE_OUT_ATT, 7, 1, 1),
 946 AD1816A_SINGLE_TLV("Phone Playback Volume", AD1816A_PHONE_OUT_ATT, 0, 31, 1,
 947                    db_scale_5bit),
 948 {
 949         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 950         .name = "Capture Source",
 951         .info = snd_ad1816a_info_mux,
 952         .get = snd_ad1816a_get_mux,
 953         .put = snd_ad1816a_put_mux,
 954 },
 955 AD1816A_DOUBLE("Capture Switch", AD1816A_ADC_PGA, 15, 7, 1, 1),
 956 AD1816A_DOUBLE_TLV("Capture Volume", AD1816A_ADC_PGA, 8, 0, 15, 0,
 957                    db_scale_rec_gain),
 958 AD1816A_SINGLE("3D Control - Switch", AD1816A_3D_PHAT_CTRL, 15, 1, 1),
 959 AD1816A_SINGLE("3D Control - Level", AD1816A_3D_PHAT_CTRL, 0, 15, 0),
 960 };
 961
 962 int snd_ad1816a_mixer(struct snd_ad1816a *chip)
 963 {
 964         struct snd_card *card;
 965         unsigned int idx;
 966         int err;
 967
 968         if (snd_BUG_ON(!chip || !chip->card))
 969                 return -EINVAL;
 970
 971         card = chip->card;
 972
 973         strcpy(card->mixername, snd_ad1816a_chip_id(chip));
 974
 975         for (idx = 0; idx < ARRAY_SIZE(snd_ad1816a_controls); idx++) {
 976                 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_ad1816a_controls[idx], chip))) < 0)
 977                         return err;
 978         }
 979         return 0;
 980 }