sound/isa/ad1816a/ad1816a_lib.c

   1
   2 /*
   3     ad1816a.c - lowlevel code for Analog Devices AD1816A chip.
   4     Copyright (C) 1999-2000 by Massimo Piccioni <dafastidio@libero.it>
   5
   6     This program is free software; you can redistribute it and/or modify
   7     it under the terms of the GNU General Public License as published by
   8     the Free Software Foundation; either version 2 of the License, or
   9     (at your option) any later version.
  10
  11     This program is distributed in the hope that it will be useful,
  12     but WITHOUT ANY WARRANTY; without even the implied warranty of
  13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14     GNU General Public License for more details.
  15
  16     You should have received a copy of the GNU General Public License
  17     along with this program; if not, write to the Free Software
  18     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  19 */
  20
  21 #include <sound/driver.h>
  22 #include <linux/delay.h>
  23 #include <linux/init.h>
  24 #include <linux/interrupt.h>
  25 #include <linux/slab.h>
  26 #include <linux/ioport.h>
  27 #include <sound/core.h>
  28 #include <sound/ad1816a.h>
  29
  30 #include <asm/io.h>
  31 #include <asm/dma.h>
  32
  33 MODULE_AUTHOR("Massimo Piccioni <dafastidio@libero.it>");
  34 MODULE_DESCRIPTION("lowlevel code for Analog Devices AD1816A chip");
  35 MODULE_LICENSE("GPL");
  36
  37 static inline int snd_ad1816a_busy_wait(ad1816a_t *chip)
  38 {
  39         int timeout;
  40
  41         for (timeout = 1000; timeout-- > 0; udelay(10))
  42                 if (inb(AD1816A_REG(AD1816A_CHIP_STATUS)) & AD1816A_READY)
  43                         return 0;
  44
  45         snd_printk("chip busy.\n");
  46         return -EBUSY;
  47 }
  48
  49 static inline unsigned char snd_ad1816a_in(ad1816a_t *chip, unsigned char reg)
  50 {
  51         snd_ad1816a_busy_wait(chip);
  52         return inb(AD1816A_REG(reg));
  53 }
  54
  55 static inline void snd_ad1816a_out(ad1816a_t *chip, unsigned char reg,
  56                             unsigned char value)
  57 {
  58         snd_ad1816a_busy_wait(chip);
  59         outb(value, AD1816A_REG(reg));
  60 }
  61
  62 static inline void snd_ad1816a_out_mask(ad1816a_t *chip, unsigned char reg,
  63                                  unsigned char mask, unsigned char value)
  64 {
  65         snd_ad1816a_out(chip, reg,
  66                 (value & mask) | (snd_ad1816a_in(chip, reg) & ~mask));
  67 }
  68
  69 static unsigned short snd_ad1816a_read(ad1816a_t *chip, unsigned char reg)
  70 {
  71         snd_ad1816a_out(chip, AD1816A_INDIR_ADDR, reg & 0x3f);
  72         return snd_ad1816a_in(chip, AD1816A_INDIR_DATA_LOW) |
  73                 (snd_ad1816a_in(chip, AD1816A_INDIR_DATA_HIGH) << 8);
  74 }
  75
  76 static void snd_ad1816a_write(ad1816a_t *chip, unsigned char reg,
  77                               unsigned short value)
  78 {
  79         snd_ad1816a_out(chip, AD1816A_INDIR_ADDR, reg & 0x3f);
  80         snd_ad1816a_out(chip, AD1816A_INDIR_DATA_LOW, value & 0xff);
  81         snd_ad1816a_out(chip, AD1816A_INDIR_DATA_HIGH, (value >> 8) & 0xff);
  82 }
  83
  84 static void snd_ad1816a_write_mask(ad1816a_t *chip, unsigned char reg,
  85                                    unsigned short mask, unsigned short value)
  86 {
  87         snd_ad1816a_write(chip, reg,
  88                 (value & mask) | (snd_ad1816a_read(chip, reg) & ~mask));
  89 }
  90
  91
  92 static unsigned char snd_ad1816a_get_format(ad1816a_t *chip,
  93                                             unsigned int format, int channels)
  94 {
  95         unsigned char retval = AD1816A_FMT_LINEAR_8;
  96
  97         switch (format) {
  98         case SNDRV_PCM_FORMAT_MU_LAW:
  99                 retval = AD1816A_FMT_ULAW_8;
 100                 break;
 101         case SNDRV_PCM_FORMAT_A_LAW:
 102                 retval = AD1816A_FMT_ALAW_8;
 103                 break;
 104         case SNDRV_PCM_FORMAT_S16_LE:
 105                 retval = AD1816A_FMT_LINEAR_16_LIT;
 106                 break;
 107         case SNDRV_PCM_FORMAT_S16_BE:
 108                 retval = AD1816A_FMT_LINEAR_16_BIG;
 109         }
 110         return (channels > 1) ? (retval | AD1816A_FMT_STEREO) : retval;
 111 }
 112
 113 static int snd_ad1816a_open(ad1816a_t *chip, unsigned int mode)
 114 {
 115         unsigned long flags;
 116
 117         spin_lock_irqsave(&chip->lock, flags);
 118
 119         if (chip->mode & mode) {
 120                 spin_unlock_irqrestore(&chip->lock, flags);
 121                 return -EAGAIN;
 122         }
 123
 124         switch ((mode &= AD1816A_MODE_OPEN)) {
 125         case AD1816A_MODE_PLAYBACK:
 126                 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS,
 127                         AD1816A_PLAYBACK_IRQ_PENDING, 0x00);
 128                 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
 129                         AD1816A_PLAYBACK_IRQ_ENABLE, 0xffff);
 130                 break;
 131         case AD1816A_MODE_CAPTURE:
 132                 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS,
 133                         AD1816A_CAPTURE_IRQ_PENDING, 0x00);
 134                 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
 135                         AD1816A_CAPTURE_IRQ_ENABLE, 0xffff);
 136                 break;
 137         case AD1816A_MODE_TIMER:
 138                 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS,
 139                         AD1816A_TIMER_IRQ_PENDING, 0x00);
 140                 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
 141                         AD1816A_TIMER_IRQ_ENABLE, 0xffff);
 142         }
 143         chip->mode |= mode;
 144
 145         spin_unlock_irqrestore(&chip->lock, flags);
 146         return 0;
 147 }
 148
 149 static void snd_ad1816a_close(ad1816a_t *chip, unsigned int mode)
 150 {
 151         unsigned long flags;
 152
 153         spin_lock_irqsave(&chip->lock, flags);
 154
 155         switch ((mode &= AD1816A_MODE_OPEN)) {
 156         case AD1816A_MODE_PLAYBACK:
 157                 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS,
 158                         AD1816A_PLAYBACK_IRQ_PENDING, 0x00);
 159                 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
 160                         AD1816A_PLAYBACK_IRQ_ENABLE, 0x0000);
 161                 break;
 162         case AD1816A_MODE_CAPTURE:
 163                 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS,
 164                         AD1816A_CAPTURE_IRQ_PENDING, 0x00);
 165                 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
 166                         AD1816A_CAPTURE_IRQ_ENABLE, 0x0000);
 167                 break;
 168         case AD1816A_MODE_TIMER:
 169                 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS,
 170                         AD1816A_TIMER_IRQ_PENDING, 0x00);
 171                 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
 172                         AD1816A_TIMER_IRQ_ENABLE, 0x0000);
 173         }
 174         if (!((chip->mode &= ~mode) & AD1816A_MODE_OPEN))
 175                 chip->mode = 0;
 176
 177         spin_unlock_irqrestore(&chip->lock, flags);
 178 }
 179
 180
 181 static int snd_ad1816a_trigger(ad1816a_t *chip, unsigned char what,
 182                                int channel, int cmd)
 183 {
 184         int error = 0;
 185
 186         switch (cmd) {
 187         case SNDRV_PCM_TRIGGER_START:
 188         case SNDRV_PCM_TRIGGER_STOP:
 189                 spin_lock(&chip->lock);
 190                 cmd = (cmd == SNDRV_PCM_TRIGGER_START) ? 0xff: 0x00;
 191                 if (what & AD1816A_PLAYBACK_ENABLE)
 192                         snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG,
 193                                 AD1816A_PLAYBACK_ENABLE, cmd);
 194                 if (what & AD1816A_CAPTURE_ENABLE)
 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(snd_pcm_substream_t *substream, int cmd)
 208 {
 209         ad1816a_t *chip = snd_pcm_substream_chip(substream);
 210         return snd_ad1816a_trigger(chip, AD1816A_PLAYBACK_ENABLE,
 211                 SNDRV_PCM_STREAM_PLAYBACK, cmd);
 212 }
 213
 214 static int snd_ad1816a_capture_trigger(snd_pcm_substream_t *substream, int cmd)
 215 {
 216         ad1816a_t *chip = snd_pcm_substream_chip(substream);
 217         return snd_ad1816a_trigger(chip, AD1816A_CAPTURE_ENABLE,
 218                 SNDRV_PCM_STREAM_CAPTURE, cmd);
 219 }
 220
 221 static int snd_ad1816a_hw_params(snd_pcm_substream_t * substream,
 222                                  snd_pcm_hw_params_t * 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(snd_pcm_substream_t * substream)
 228 {
 229         return snd_pcm_lib_free_pages(substream);
 230 }
 231
 232 static int snd_ad1816a_playback_prepare(snd_pcm_substream_t *substream)
 233 {
 234         ad1816a_t *chip = snd_pcm_substream_chip(substream);
 235         unsigned long flags;
 236         snd_pcm_runtime_t *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(snd_pcm_substream_t *substream)
 265 {
 266         ad1816a_t *chip = snd_pcm_substream_chip(substream);
 267         unsigned long flags;
 268         snd_pcm_runtime_t *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(snd_pcm_substream_t *substream)
 298 {
 299         ad1816a_t *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(snd_pcm_substream_t *substream)
 308 {
 309         ad1816a_t *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, struct pt_regs *regs)
 319 {
 320         ad1816a_t *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 snd_pcm_hardware_t 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 snd_pcm_hardware_t 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(snd_timer_t *timer)
 383 {
 384         ad1816a_t *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(snd_timer_t *timer)
 390 {
 391         ad1816a_t *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(snd_timer_t *timer)
 397 {
 398         snd_assert(timer != NULL, return 0);
 399
 400         return 10000;
 401 }
 402
 403 static int snd_ad1816a_timer_start(snd_timer_t *timer)
 404 {
 405         unsigned short bits;
 406         unsigned long flags;
 407         ad1816a_t *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(snd_timer_t *timer)
 423 {
 424         unsigned long flags;
 425         ad1816a_t *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(snd_pcm_substream_t *substream)
 449 {
 450         ad1816a_t *chip = snd_pcm_substream_chip(substream);
 451         snd_pcm_runtime_t *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(snd_pcm_substream_t *substream)
 465 {
 466         ad1816a_t *chip = snd_pcm_substream_chip(substream);
 467         snd_pcm_runtime_t *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(snd_pcm_substream_t *substream)
 481 {
 482         ad1816a_t *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(snd_pcm_substream_t *substream)
 490 {
 491         ad1816a_t *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 snd_ad1816a_init(ad1816a_t *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 snd_ad1816a_probe(ad1816a_t *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(ad1816a_t *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(snd_device_t *device)
 561 {
 562         ad1816a_t *chip = device->device_data;
 563         return snd_ad1816a_free(chip);
 564 }
 565
 566 static const char *snd_ad1816a_chip_id(ad1816a_t *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 snd_ad1816a_create(snd_card_t *card,
 580                        unsigned long port, int irq, int dma1, int dma2,
 581                        ad1816a_t **rchip)
 582 {
 583         static snd_device_ops_t ops = {
 584                 .dev_free =     snd_ad1816a_dev_free,
 585         };
 586         int error;
 587         ad1816a_t *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, SA_INTERRUPT, "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 snd_pcm_ops_t 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 snd_pcm_ops_t 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 snd_ad1816a_pcm(ad1816a_t *chip, int device, snd_pcm_t **rpcm)
 666 {
 667         int error;
 668         snd_pcm_t *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 static void snd_ad1816a_timer_free(snd_timer_t *timer)
 694 {
 695         ad1816a_t *chip = timer->private_data;
 696         chip->timer = NULL;
 697 }
 698
 699 int snd_ad1816a_timer(ad1816a_t *chip, int device, snd_timer_t **rtimer)
 700 {
 701         snd_timer_t *timer;
 702         snd_timer_id_t tid;
 703         int error;
 704
 705         tid.dev_class = SNDRV_TIMER_CLASS_CARD;
 706         tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE;
 707         tid.card = chip->card->number;
 708         tid.device = device;
 709         tid.subdevice = 0;
 710         if ((error = snd_timer_new(chip->card, "AD1816A", &tid, &timer)) < 0)
 711                 return error;
 712         strcpy(timer->name, snd_ad1816a_chip_id(chip));
 713         timer->private_data = chip;
 714         timer->private_free = snd_ad1816a_timer_free;
 715         chip->timer = timer;
 716         timer->hw = snd_ad1816a_timer_table;
 717         if (rtimer)
 718                 *rtimer = timer;
 719         return 0;
 720 }
 721 #endif /* not used now */
 722
 723 /*
 724  *
 725  */
 726
 727 static int snd_ad1816a_info_mux(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
 728 {
 729         static char *texts[8] = {
 730                 "Line", "Mix", "CD", "Synth", "Video",
 731                 "Mic", "Phone",
 732         };
 733
 734         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 735         uinfo->count = 2;
 736         uinfo->value.enumerated.items = 7;
 737         if (uinfo->value.enumerated.item > 6)
 738                 uinfo->value.enumerated.item = 6;
 739         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
 740         return 0;
 741 }
 742
 743 static int snd_ad1816a_get_mux(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
 744 {
 745         ad1816a_t *chip = snd_kcontrol_chip(kcontrol);
 746         unsigned long flags;
 747         unsigned short val;
 748
 749         spin_lock_irqsave(&chip->lock, flags);
 750         val = snd_ad1816a_read(chip, AD1816A_ADC_SOURCE_SEL);
 751         spin_unlock_irqrestore(&chip->lock, flags);
 752         ucontrol->value.enumerated.item[0] = (val >> 12) & 7;
 753         ucontrol->value.enumerated.item[1] = (val >> 4) & 7;
 754         return 0;
 755 }
 756
 757 static int snd_ad1816a_put_mux(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
 758 {
 759         ad1816a_t *chip = snd_kcontrol_chip(kcontrol);
 760         unsigned long flags;
 761         unsigned short val;
 762         int change;
 763
 764         if (ucontrol->value.enumerated.item[0] > 6 ||
 765             ucontrol->value.enumerated.item[1] > 6)
 766                 return -EINVAL;
 767         val = (ucontrol->value.enumerated.item[0] << 12) |
 768               (ucontrol->value.enumerated.item[1] << 4);
 769         spin_lock_irqsave(&chip->lock, flags);
 770         change = snd_ad1816a_read(chip, AD1816A_ADC_SOURCE_SEL) != val;
 771         snd_ad1816a_write(chip, AD1816A_ADC_SOURCE_SEL, val);
 772         spin_unlock_irqrestore(&chip->lock, flags);
 773         return change;
 774 }
 775
 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(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * 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(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
 793 {
 794         ad1816a_t *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(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
 810 {
 811         ad1816a_t *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(xname, reg, shift_left, shift_right, mask, invert) \
 834 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ad1816a_info_double, \
 835   .get = snd_ad1816a_get_double, .put = snd_ad1816a_put_double, \
 836   .private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24) }
 837
 838 static int snd_ad1816a_info_double(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
 839 {
 840         int mask = (kcontrol->private_value >> 16) & 0xff;
 841
 842         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 843         uinfo->count = 2;
 844         uinfo->value.integer.min = 0;
 845         uinfo->value.integer.max = mask;
 846         return 0;
 847 }
 848
 849 static int snd_ad1816a_get_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
 850 {
 851         ad1816a_t *chip = snd_kcontrol_chip(kcontrol);
 852         unsigned long flags;
 853         int reg = kcontrol->private_value & 0xff;
 854         int shift_left = (kcontrol->private_value >> 8) & 0x0f;
 855         int shift_right = (kcontrol->private_value >> 12) & 0x0f;
 856         int mask = (kcontrol->private_value >> 16) & 0xff;
 857         int invert = (kcontrol->private_value >> 24) & 0xff;
 858         unsigned short val;
 859
 860         spin_lock_irqsave(&chip->lock, flags);
 861         val = snd_ad1816a_read(chip, reg);
 862         ucontrol->value.integer.value[0] = (val >> shift_left) & mask;
 863         ucontrol->value.integer.value[1] = (val >> shift_right) & mask;
 864         spin_unlock_irqrestore(&chip->lock, flags);
 865         if (invert) {
 866                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
 867                 ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
 868         }
 869         return 0;
 870 }
 871
 872 static int snd_ad1816a_put_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
 873 {
 874         ad1816a_t *chip = snd_kcontrol_chip(kcontrol);
 875         unsigned long flags;
 876         int reg = kcontrol->private_value & 0xff;
 877         int shift_left = (kcontrol->private_value >> 8) & 0x0f;
 878         int shift_right = (kcontrol->private_value >> 12) & 0x0f;
 879         int mask = (kcontrol->private_value >> 16) & 0xff;
 880         int invert = (kcontrol->private_value >> 24) & 0xff;
 881         int change;
 882         unsigned short old_val, val1, val2;
 883
 884         val1 = ucontrol->value.integer.value[0] & mask;
 885         val2 = ucontrol->value.integer.value[1] & mask;
 886         if (invert) {
 887                 val1 = mask - val1;
 888                 val2 = mask - val2;
 889         }
 890         val1 <<= shift_left;
 891         val2 <<= shift_right;
 892         spin_lock_irqsave(&chip->lock, flags);
 893         old_val = snd_ad1816a_read(chip, reg);
 894         val1 = (old_val & ~((mask << shift_left) | (mask << shift_right))) | val1 | val2;
 895         change = val1 != old_val;
 896         snd_ad1816a_write(chip, reg, val1);
 897         spin_unlock_irqrestore(&chip->lock, flags);
 898         return change;
 899 }
 900
 901 static snd_kcontrol_new_t snd_ad1816a_controls[] = {
 902 AD1816A_DOUBLE("Master Playback Switch", AD1816A_MASTER_ATT, 15, 7, 1, 1),
 903 AD1816A_DOUBLE("Master Playback Volume", AD1816A_MASTER_ATT, 8, 0, 31, 1),
 904 AD1816A_DOUBLE("PCM Playback Switch", AD1816A_VOICE_ATT, 15, 7, 1, 1),
 905 AD1816A_DOUBLE("PCM Playback Volume", AD1816A_VOICE_ATT, 8, 0, 63, 1),
 906 AD1816A_DOUBLE("Line Playback Switch", AD1816A_LINE_GAIN_ATT, 15, 7, 1, 1),
 907 AD1816A_DOUBLE("Line Playback Volume", AD1816A_LINE_GAIN_ATT, 8, 0, 31, 1),
 908 AD1816A_DOUBLE("CD Playback Switch", AD1816A_CD_GAIN_ATT, 15, 7, 1, 1),
 909 AD1816A_DOUBLE("CD Playback Volume", AD1816A_CD_GAIN_ATT, 8, 0, 31, 1),
 910 AD1816A_DOUBLE("Synth Playback Switch", AD1816A_SYNTH_GAIN_ATT, 15, 7, 1, 1),
 911 AD1816A_DOUBLE("Synth Playback Volume", AD1816A_SYNTH_GAIN_ATT, 8, 0, 31, 1),
 912 AD1816A_DOUBLE("FM Playback Switch", AD1816A_FM_ATT, 15, 7, 1, 1),
 913 AD1816A_DOUBLE("FM Playback Volume", AD1816A_FM_ATT, 8, 0, 63, 1),
 914 AD1816A_SINGLE("Mic Playback Switch", AD1816A_MIC_GAIN_ATT, 15, 1, 1),
 915 AD1816A_SINGLE("Mic Playback Volume", AD1816A_MIC_GAIN_ATT, 8, 31, 1),
 916 AD1816A_SINGLE("Mic Boost", AD1816A_MIC_GAIN_ATT, 14, 1, 0),
 917 AD1816A_DOUBLE("Video Playback Switch", AD1816A_VID_GAIN_ATT, 15, 7, 1, 1),
 918 AD1816A_DOUBLE("Video Playback Volume", AD1816A_VID_GAIN_ATT, 8, 0, 31, 1),
 919 AD1816A_SINGLE("Phone Capture Switch", AD1816A_PHONE_IN_GAIN_ATT, 15, 1, 1),
 920 AD1816A_SINGLE("Phone Capture Volume", AD1816A_PHONE_IN_GAIN_ATT, 0, 15, 1),
 921 AD1816A_SINGLE("Phone Playback Switch", AD1816A_PHONE_OUT_ATT, 7, 1, 1),
 922 AD1816A_SINGLE("Phone Playback Volume", AD1816A_PHONE_OUT_ATT, 0, 31, 1),
 923 {
 924         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 925         .name = "Capture Source",
 926         .info = snd_ad1816a_info_mux,
 927         .get = snd_ad1816a_get_mux,
 928         .put = snd_ad1816a_put_mux,
 929 },
 930 AD1816A_DOUBLE("Capture Switch", AD1816A_ADC_PGA, 15, 7, 1, 1),
 931 AD1816A_DOUBLE("Capture Volume", AD1816A_ADC_PGA, 8, 0, 15, 0),
 932 AD1816A_SINGLE("3D Control - Switch", AD1816A_3D_PHAT_CTRL, 15, 1, 1),
 933 AD1816A_SINGLE("3D Control - Level", AD1816A_3D_PHAT_CTRL, 0, 15, 0),
 934 };
 935
 936 int snd_ad1816a_mixer(ad1816a_t *chip)
 937 {
 938         snd_card_t *card;
 939         unsigned int idx;
 940         int err;
 941
 942         snd_assert(chip != NULL && chip->card != NULL, return -EINVAL);
 943
 944         card = chip->card;
 945
 946         strcpy(card->mixername, snd_ad1816a_chip_id(chip));
 947
 948         for (idx = 0; idx < ARRAY_SIZE(snd_ad1816a_controls); idx++) {
 949                 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_ad1816a_controls[idx], chip))) < 0)
 950                         return err;
 951         }
 952         return 0;
 953 }
 954
 955 EXPORT_SYMBOL(snd_ad1816a_create);
 956 EXPORT_SYMBOL(snd_ad1816a_pcm);
 957 EXPORT_SYMBOL(snd_ad1816a_mixer);
 958
 959 static int __init alsa_ad1816a_init(void)
 960 {
 961         return 0;
 962 }
 963
 964 static void __exit alsa_ad1816a_exit(void)
 965 {
 966 }
 967
 968 module_init(alsa_ad1816a_init)
 969 module_exit(alsa_ad1816a_exit)