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         snd_pcm_suspend_all(chip->pcm);
 522         spin_lock_irqsave(&chip->lock, flags);
 523         for (reg = 0; reg < 48; reg++)
 524                 chip->image[reg] = snd_ad1816a_read(chip, reg);
 525         spin_unlock_irqrestore(&chip->lock, flags);
 526 }
 527
 528 void snd_ad1816a_resume(struct snd_ad1816a *chip)
 529 {
 530         int reg;
 531         unsigned long flags;
 532
 533         snd_ad1816a_init(chip);
 534         spin_lock_irqsave(&chip->lock, flags);
 535         for (reg = 0; reg < 48; reg++)
 536                 snd_ad1816a_write(chip, reg, chip->image[reg]);
 537         spin_unlock_irqrestore(&chip->lock, flags);
 538 }
 539 #endif
 540
 541 static int snd_ad1816a_probe(struct snd_ad1816a *chip)
 542 {
 543         unsigned long flags;
 544
 545         spin_lock_irqsave(&chip->lock, flags);
 546
 547         switch (chip->version = snd_ad1816a_read(chip, AD1816A_VERSION_ID)) {
 548         case 0:
 549                 chip->hardware = AD1816A_HW_AD1815;
 550                 break;
 551         case 1:
 552                 chip->hardware = AD1816A_HW_AD18MAX10;
 553                 break;
 554         case 3:
 555                 chip->hardware = AD1816A_HW_AD1816A;
 556                 break;
 557         default:
 558                 chip->hardware = AD1816A_HW_AUTO;
 559         }
 560
 561         spin_unlock_irqrestore(&chip->lock, flags);
 562         return 0;
 563 }
 564
 565 static int snd_ad1816a_free(struct snd_ad1816a *chip)
 566 {
 567         release_and_free_resource(chip->res_port);
 568         if (chip->irq >= 0)
 569                 free_irq(chip->irq, (void *) chip);
 570         if (chip->dma1 >= 0) {
 571                 snd_dma_disable(chip->dma1);
 572                 free_dma(chip->dma1);
 573         }
 574         if (chip->dma2 >= 0) {
 575                 snd_dma_disable(chip->dma2);
 576                 free_dma(chip->dma2);
 577         }
 578         return 0;
 579 }
 580
 581 static int snd_ad1816a_dev_free(struct snd_device *device)
 582 {
 583         struct snd_ad1816a *chip = device->device_data;
 584         return snd_ad1816a_free(chip);
 585 }
 586
 587 static const char *snd_ad1816a_chip_id(struct snd_ad1816a *chip)
 588 {
 589         switch (chip->hardware) {
 590         case AD1816A_HW_AD1816A: return "AD1816A";
 591         case AD1816A_HW_AD1815: return "AD1815";
 592         case AD1816A_HW_AD18MAX10: return "AD18max10";
 593         default:
 594                 snd_printk(KERN_WARNING "Unknown chip version %d:%d.\n",
 595                         chip->version, chip->hardware);
 596                 return "AD1816A - unknown";
 597         }
 598 }
 599
 600 int snd_ad1816a_create(struct snd_card *card,
 601                        unsigned long port, int irq, int dma1, int dma2,
 602                        struct snd_ad1816a *chip)
 603 {
 604         static struct snd_device_ops ops = {
 605                 .dev_free =     snd_ad1816a_dev_free,
 606         };
 607         int error;
 608
 609         chip->irq = -1;
 610         chip->dma1 = -1;
 611         chip->dma2 = -1;
 612
 613         if ((chip->res_port = request_region(port, 16, "AD1816A")) == NULL) {
 614                 snd_printk(KERN_ERR "ad1816a: can't grab port 0x%lx\n", port);
 615                 snd_ad1816a_free(chip);
 616                 return -EBUSY;
 617         }
 618         if (request_irq(irq, snd_ad1816a_interrupt, 0, "AD1816A", (void *) chip)) {
 619                 snd_printk(KERN_ERR "ad1816a: can't grab IRQ %d\n", irq);
 620                 snd_ad1816a_free(chip);
 621                 return -EBUSY;
 622         }
 623         chip->irq = irq;
 624         if (request_dma(dma1, "AD1816A - 1")) {
 625                 snd_printk(KERN_ERR "ad1816a: can't grab DMA1 %d\n", dma1);
 626                 snd_ad1816a_free(chip);
 627                 return -EBUSY;
 628         }
 629         chip->dma1 = dma1;
 630         if (request_dma(dma2, "AD1816A - 2")) {
 631                 snd_printk(KERN_ERR "ad1816a: can't grab DMA2 %d\n", dma2);
 632                 snd_ad1816a_free(chip);
 633                 return -EBUSY;
 634         }
 635         chip->dma2 = dma2;
 636
 637         chip->card = card;
 638         chip->port = port;
 639         spin_lock_init(&chip->lock);
 640
 641         if ((error = snd_ad1816a_probe(chip))) {
 642                 snd_ad1816a_free(chip);
 643                 return error;
 644         }
 645
 646         snd_ad1816a_init(chip);
 647
 648         /* Register device */
 649         if ((error = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
 650                 snd_ad1816a_free(chip);
 651                 return error;
 652         }
 653
 654         return 0;
 655 }
 656
 657 static const struct snd_pcm_ops snd_ad1816a_playback_ops = {
 658         .open =         snd_ad1816a_playback_open,
 659         .close =        snd_ad1816a_playback_close,
 660         .ioctl =        snd_pcm_lib_ioctl,
 661         .hw_params =    snd_ad1816a_hw_params,
 662         .hw_free =      snd_ad1816a_hw_free,
 663         .prepare =      snd_ad1816a_playback_prepare,
 664         .trigger =      snd_ad1816a_playback_trigger,
 665         .pointer =      snd_ad1816a_playback_pointer,
 666 };
 667
 668 static const struct snd_pcm_ops snd_ad1816a_capture_ops = {
 669         .open =         snd_ad1816a_capture_open,
 670         .close =        snd_ad1816a_capture_close,
 671         .ioctl =        snd_pcm_lib_ioctl,
 672         .hw_params =    snd_ad1816a_hw_params,
 673         .hw_free =      snd_ad1816a_hw_free,
 674         .prepare =      snd_ad1816a_capture_prepare,
 675         .trigger =      snd_ad1816a_capture_trigger,
 676         .pointer =      snd_ad1816a_capture_pointer,
 677 };
 678
 679 int snd_ad1816a_pcm(struct snd_ad1816a *chip, int device)
 680 {
 681         int error;
 682         struct snd_pcm *pcm;
 683
 684         if ((error = snd_pcm_new(chip->card, "AD1816A", device, 1, 1, &pcm)))
 685                 return error;
 686
 687         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ad1816a_playback_ops);
 688         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ad1816a_capture_ops);
 689
 690         pcm->private_data = chip;
 691         pcm->info_flags = (chip->dma1 == chip->dma2 ) ? SNDRV_PCM_INFO_JOINT_DUPLEX : 0;
 692
 693         strcpy(pcm->name, snd_ad1816a_chip_id(chip));
 694         snd_ad1816a_init(chip);
 695
 696         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
 697                                               snd_dma_isa_data(),
 698                                               64*1024, chip->dma1 > 3 || chip->dma2 > 3 ? 128*1024 : 64*1024);
 699
 700         chip->pcm = pcm;
 701         return 0;
 702 }
 703
 704 int snd_ad1816a_timer(struct snd_ad1816a *chip, int device)
 705 {
 706         struct snd_timer *timer;
 707         struct snd_timer_id tid;
 708         int error;
 709
 710         tid.dev_class = SNDRV_TIMER_CLASS_CARD;
 711         tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE;
 712         tid.card = chip->card->number;
 713         tid.device = device;
 714         tid.subdevice = 0;
 715         if ((error = snd_timer_new(chip->card, "AD1816A", &tid, &timer)) < 0)
 716                 return error;
 717         strcpy(timer->name, snd_ad1816a_chip_id(chip));
 718         timer->private_data = chip;
 719         chip->timer = timer;
 720         timer->hw = snd_ad1816a_timer_table;
 721         return 0;
 722 }
 723
 724 /*
 725  *
 726  */
 727
 728 static int snd_ad1816a_info_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 729 {
 730         static const char * const texts[8] = {
 731                 "Line", "Mix", "CD", "Synth", "Video",
 732                 "Mic", "Phone",
 733         };
 734
 735         return snd_ctl_enum_info(uinfo, 2, 7, texts);
 736 }
 737
 738 static int snd_ad1816a_get_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 739 {
 740         struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
 741         unsigned long flags;
 742         unsigned short val;
 743
 744         spin_lock_irqsave(&chip->lock, flags);
 745         val = snd_ad1816a_read(chip, AD1816A_ADC_SOURCE_SEL);
 746         spin_unlock_irqrestore(&chip->lock, flags);
 747         ucontrol->value.enumerated.item[0] = (val >> 12) & 7;
 748         ucontrol->value.enumerated.item[1] = (val >> 4) & 7;
 749         return 0;
 750 }
 751
 752 static int snd_ad1816a_put_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 753 {
 754         struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
 755         unsigned long flags;
 756         unsigned short val;
 757         int change;
 758
 759         if (ucontrol->value.enumerated.item[0] > 6 ||
 760             ucontrol->value.enumerated.item[1] > 6)
 761                 return -EINVAL;
 762         val = (ucontrol->value.enumerated.item[0] << 12) |
 763               (ucontrol->value.enumerated.item[1] << 4);
 764         spin_lock_irqsave(&chip->lock, flags);
 765         change = snd_ad1816a_read(chip, AD1816A_ADC_SOURCE_SEL) != val;
 766         snd_ad1816a_write(chip, AD1816A_ADC_SOURCE_SEL, val);
 767         spin_unlock_irqrestore(&chip->lock, flags);
 768         return change;
 769 }
 770
 771 #define AD1816A_SINGLE_TLV(xname, reg, shift, mask, invert, xtlv)       \
 772 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
 773   .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
 774   .name = xname, .info = snd_ad1816a_info_single, \
 775   .get = snd_ad1816a_get_single, .put = snd_ad1816a_put_single, \
 776   .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24), \
 777   .tlv = { .p = (xtlv) } }
 778 #define AD1816A_SINGLE(xname, reg, shift, mask, invert) \
 779 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ad1816a_info_single, \
 780   .get = snd_ad1816a_get_single, .put = snd_ad1816a_put_single, \
 781   .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
 782
 783 static int snd_ad1816a_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 784 {
 785         int mask = (kcontrol->private_value >> 16) & 0xff;
 786
 787         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 788         uinfo->count = 1;
 789         uinfo->value.integer.min = 0;
 790         uinfo->value.integer.max = mask;
 791         return 0;
 792 }
 793
 794 static int snd_ad1816a_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 795 {
 796         struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
 797         unsigned long flags;
 798         int reg = kcontrol->private_value & 0xff;
 799         int shift = (kcontrol->private_value >> 8) & 0xff;
 800         int mask = (kcontrol->private_value >> 16) & 0xff;
 801         int invert = (kcontrol->private_value >> 24) & 0xff;
 802
 803         spin_lock_irqsave(&chip->lock, flags);
 804         ucontrol->value.integer.value[0] = (snd_ad1816a_read(chip, reg) >> shift) & mask;
 805         spin_unlock_irqrestore(&chip->lock, flags);
 806         if (invert)
 807                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
 808         return 0;
 809 }
 810
 811 static int snd_ad1816a_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 812 {
 813         struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
 814         unsigned long flags;
 815         int reg = kcontrol->private_value & 0xff;
 816         int shift = (kcontrol->private_value >> 8) & 0xff;
 817         int mask = (kcontrol->private_value >> 16) & 0xff;
 818         int invert = (kcontrol->private_value >> 24) & 0xff;
 819         int change;
 820         unsigned short old_val, val;
 821
 822         val = (ucontrol->value.integer.value[0] & mask);
 823         if (invert)
 824                 val = mask - val;
 825         val <<= shift;
 826         spin_lock_irqsave(&chip->lock, flags);
 827         old_val = snd_ad1816a_read(chip, reg);
 828         val = (old_val & ~(mask << shift)) | val;
 829         change = val != old_val;
 830         snd_ad1816a_write(chip, reg, val);
 831         spin_unlock_irqrestore(&chip->lock, flags);
 832         return change;
 833 }
 834
 835 #define AD1816A_DOUBLE_TLV(xname, reg, shift_left, shift_right, mask, invert, xtlv) \
 836 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
 837   .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
 838   .name = xname, .info = snd_ad1816a_info_double,               \
 839   .get = snd_ad1816a_get_double, .put = snd_ad1816a_put_double, \
 840   .private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24), \
 841   .tlv = { .p = (xtlv) } }
 842
 843 #define AD1816A_DOUBLE(xname, reg, shift_left, shift_right, mask, invert) \
 844 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ad1816a_info_double, \
 845   .get = snd_ad1816a_get_double, .put = snd_ad1816a_put_double, \
 846   .private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24) }
 847
 848 static int snd_ad1816a_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 849 {
 850         int mask = (kcontrol->private_value >> 16) & 0xff;
 851
 852         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 853         uinfo->count = 2;
 854         uinfo->value.integer.min = 0;
 855         uinfo->value.integer.max = mask;
 856         return 0;
 857 }
 858
 859 static int snd_ad1816a_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 860 {
 861         struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
 862         unsigned long flags;
 863         int reg = kcontrol->private_value & 0xff;
 864         int shift_left = (kcontrol->private_value >> 8) & 0x0f;
 865         int shift_right = (kcontrol->private_value >> 12) & 0x0f;
 866         int mask = (kcontrol->private_value >> 16) & 0xff;
 867         int invert = (kcontrol->private_value >> 24) & 0xff;
 868         unsigned short val;
 869
 870         spin_lock_irqsave(&chip->lock, flags);
 871         val = snd_ad1816a_read(chip, reg);
 872         ucontrol->value.integer.value[0] = (val >> shift_left) & mask;
 873         ucontrol->value.integer.value[1] = (val >> shift_right) & mask;
 874         spin_unlock_irqrestore(&chip->lock, flags);
 875         if (invert) {
 876                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
 877                 ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
 878         }
 879         return 0;
 880 }
 881
 882 static int snd_ad1816a_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 883 {
 884         struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
 885         unsigned long flags;
 886         int reg = kcontrol->private_value & 0xff;
 887         int shift_left = (kcontrol->private_value >> 8) & 0x0f;
 888         int shift_right = (kcontrol->private_value >> 12) & 0x0f;
 889         int mask = (kcontrol->private_value >> 16) & 0xff;
 890         int invert = (kcontrol->private_value >> 24) & 0xff;
 891         int change;
 892         unsigned short old_val, val1, val2;
 893
 894         val1 = ucontrol->value.integer.value[0] & mask;
 895         val2 = ucontrol->value.integer.value[1] & mask;
 896         if (invert) {
 897                 val1 = mask - val1;
 898                 val2 = mask - val2;
 899         }
 900         val1 <<= shift_left;
 901         val2 <<= shift_right;
 902         spin_lock_irqsave(&chip->lock, flags);
 903         old_val = snd_ad1816a_read(chip, reg);
 904         val1 = (old_val & ~((mask << shift_left) | (mask << shift_right))) | val1 | val2;
 905         change = val1 != old_val;
 906         snd_ad1816a_write(chip, reg, val1);
 907         spin_unlock_irqrestore(&chip->lock, flags);
 908         return change;
 909 }
 910
 911 static const DECLARE_TLV_DB_SCALE(db_scale_4bit, -4500, 300, 0);
 912 static const DECLARE_TLV_DB_SCALE(db_scale_5bit, -4650, 150, 0);
 913 static const DECLARE_TLV_DB_SCALE(db_scale_6bit, -9450, 150, 0);
 914 static const DECLARE_TLV_DB_SCALE(db_scale_5bit_12db_max, -3450, 150, 0);
 915 static const DECLARE_TLV_DB_SCALE(db_scale_rec_gain, 0, 150, 0);
 916
 917 static struct snd_kcontrol_new snd_ad1816a_controls[] = {
 918 AD1816A_DOUBLE("Master Playback Switch", AD1816A_MASTER_ATT, 15, 7, 1, 1),
 919 AD1816A_DOUBLE_TLV("Master Playback Volume", AD1816A_MASTER_ATT, 8, 0, 31, 1,
 920                    db_scale_5bit),
 921 AD1816A_DOUBLE("PCM Playback Switch", AD1816A_VOICE_ATT, 15, 7, 1, 1),
 922 AD1816A_DOUBLE_TLV("PCM Playback Volume", AD1816A_VOICE_ATT, 8, 0, 63, 1,
 923                    db_scale_6bit),
 924 AD1816A_DOUBLE("Line Playback Switch", AD1816A_LINE_GAIN_ATT, 15, 7, 1, 1),
 925 AD1816A_DOUBLE_TLV("Line Playback Volume", AD1816A_LINE_GAIN_ATT, 8, 0, 31, 1,
 926                    db_scale_5bit_12db_max),
 927 AD1816A_DOUBLE("CD Playback Switch", AD1816A_CD_GAIN_ATT, 15, 7, 1, 1),
 928 AD1816A_DOUBLE_TLV("CD Playback Volume", AD1816A_CD_GAIN_ATT, 8, 0, 31, 1,
 929                    db_scale_5bit_12db_max),
 930 AD1816A_DOUBLE("Synth Playback Switch", AD1816A_SYNTH_GAIN_ATT, 15, 7, 1, 1),
 931 AD1816A_DOUBLE_TLV("Synth Playback Volume", AD1816A_SYNTH_GAIN_ATT, 8, 0, 31, 1,
 932                    db_scale_5bit_12db_max),
 933 AD1816A_DOUBLE("FM Playback Switch", AD1816A_FM_ATT, 15, 7, 1, 1),
 934 AD1816A_DOUBLE_TLV("FM Playback Volume", AD1816A_FM_ATT, 8, 0, 63, 1,
 935                    db_scale_6bit),
 936 AD1816A_SINGLE("Mic Playback Switch", AD1816A_MIC_GAIN_ATT, 15, 1, 1),
 937 AD1816A_SINGLE_TLV("Mic Playback Volume", AD1816A_MIC_GAIN_ATT, 8, 31, 1,
 938                    db_scale_5bit_12db_max),
 939 AD1816A_SINGLE("Mic Boost", AD1816A_MIC_GAIN_ATT, 14, 1, 0),
 940 AD1816A_DOUBLE("Video Playback Switch", AD1816A_VID_GAIN_ATT, 15, 7, 1, 1),
 941 AD1816A_DOUBLE_TLV("Video Playback Volume", AD1816A_VID_GAIN_ATT, 8, 0, 31, 1,
 942                    db_scale_5bit_12db_max),
 943 AD1816A_SINGLE("Phone Capture Switch", AD1816A_PHONE_IN_GAIN_ATT, 15, 1, 1),
 944 AD1816A_SINGLE_TLV("Phone Capture Volume", AD1816A_PHONE_IN_GAIN_ATT, 0, 15, 1,
 945                    db_scale_4bit),
 946 AD1816A_SINGLE("Phone Playback Switch", AD1816A_PHONE_OUT_ATT, 7, 1, 1),
 947 AD1816A_SINGLE_TLV("Phone Playback Volume", AD1816A_PHONE_OUT_ATT, 0, 31, 1,
 948                    db_scale_5bit),
 949 {
 950         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 951         .name = "Capture Source",
 952         .info = snd_ad1816a_info_mux,
 953         .get = snd_ad1816a_get_mux,
 954         .put = snd_ad1816a_put_mux,
 955 },
 956 AD1816A_DOUBLE("Capture Switch", AD1816A_ADC_PGA, 15, 7, 1, 1),
 957 AD1816A_DOUBLE_TLV("Capture Volume", AD1816A_ADC_PGA, 8, 0, 15, 0,
 958                    db_scale_rec_gain),
 959 AD1816A_SINGLE("3D Control - Switch", AD1816A_3D_PHAT_CTRL, 15, 1, 1),
 960 AD1816A_SINGLE("3D Control - Level", AD1816A_3D_PHAT_CTRL, 0, 15, 0),
 961 };
 962
 963 int snd_ad1816a_mixer(struct snd_ad1816a *chip)
 964 {
 965         struct snd_card *card;
 966         unsigned int idx;
 967         int err;
 968
 969         if (snd_BUG_ON(!chip || !chip->card))
 970                 return -EINVAL;
 971
 972         card = chip->card;
 973
 974         strcpy(card->mixername, snd_ad1816a_chip_id(chip));
 975
 976         for (idx = 0; idx < ARRAY_SIZE(snd_ad1816a_controls); idx++) {
 977                 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_ad1816a_controls[idx], chip))) < 0)
 978                         return err;
 979         }
 980         return 0;
 981 }