sound/isa/ad1816a/ad1816a_lib.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3     ad1816a.c - lowlevel code for Analog Devices AD1816A chip.
   4     Copyright (C) 1999-2000 by Massimo Piccioni <dafastidio@libero.it>
   5
   6 */
   7
   8 #include <linux/delay.h>
   9 #include <linux/init.h>
  10 #include <linux/interrupt.h>
  11 #include <linux/slab.h>
  12 #include <linux/ioport.h>
  13 #include <linux/io.h>
  14 #include <sound/core.h>
  15 #include <sound/tlv.h>
  16 #include <sound/ad1816a.h>
  17
  18 #include <asm/dma.h>
  19
  20 static inline int snd_ad1816a_busy_wait(struct snd_ad1816a *chip)
  21 {
  22         int timeout;
  23
  24         for (timeout = 1000; timeout-- > 0; udelay(10))
  25                 if (inb(AD1816A_REG(AD1816A_CHIP_STATUS)) & AD1816A_READY)
  26                         return 0;
  27
  28         snd_printk(KERN_WARNING "chip busy.\n");
  29         return -EBUSY;
  30 }
  31
  32 static inline unsigned char snd_ad1816a_in(struct snd_ad1816a *chip, unsigned char reg)
  33 {
  34         snd_ad1816a_busy_wait(chip);
  35         return inb(AD1816A_REG(reg));
  36 }
  37
  38 static inline void snd_ad1816a_out(struct snd_ad1816a *chip, unsigned char reg,
  39                             unsigned char value)
  40 {
  41         snd_ad1816a_busy_wait(chip);
  42         outb(value, AD1816A_REG(reg));
  43 }
  44
  45 static inline void snd_ad1816a_out_mask(struct snd_ad1816a *chip, unsigned char reg,
  46                                  unsigned char mask, unsigned char value)
  47 {
  48         snd_ad1816a_out(chip, reg,
  49                 (value & mask) | (snd_ad1816a_in(chip, reg) & ~mask));
  50 }
  51
  52 static unsigned short snd_ad1816a_read(struct snd_ad1816a *chip, unsigned char reg)
  53 {
  54         snd_ad1816a_out(chip, AD1816A_INDIR_ADDR, reg & 0x3f);
  55         return snd_ad1816a_in(chip, AD1816A_INDIR_DATA_LOW) |
  56                 (snd_ad1816a_in(chip, AD1816A_INDIR_DATA_HIGH) << 8);
  57 }
  58
  59 static void snd_ad1816a_write(struct snd_ad1816a *chip, unsigned char reg,
  60                               unsigned short value)
  61 {
  62         snd_ad1816a_out(chip, AD1816A_INDIR_ADDR, reg & 0x3f);
  63         snd_ad1816a_out(chip, AD1816A_INDIR_DATA_LOW, value & 0xff);
  64         snd_ad1816a_out(chip, AD1816A_INDIR_DATA_HIGH, (value >> 8) & 0xff);
  65 }
  66
  67 static void snd_ad1816a_write_mask(struct snd_ad1816a *chip, unsigned char reg,
  68                                    unsigned short mask, unsigned short value)
  69 {
  70         snd_ad1816a_write(chip, reg,
  71                 (value & mask) | (snd_ad1816a_read(chip, reg) & ~mask));
  72 }
  73
  74
  75 static unsigned char snd_ad1816a_get_format(struct snd_ad1816a *chip,
  76                                             snd_pcm_format_t format,
  77                                             int channels)
  78 {
  79         unsigned char retval = AD1816A_FMT_LINEAR_8;
  80
  81         switch (format) {
  82         case SNDRV_PCM_FORMAT_MU_LAW:
  83                 retval = AD1816A_FMT_ULAW_8;
  84                 break;
  85         case SNDRV_PCM_FORMAT_A_LAW:
  86                 retval = AD1816A_FMT_ALAW_8;
  87                 break;
  88         case SNDRV_PCM_FORMAT_S16_LE:
  89                 retval = AD1816A_FMT_LINEAR_16_LIT;
  90                 break;
  91         case SNDRV_PCM_FORMAT_S16_BE:
  92                 retval = AD1816A_FMT_LINEAR_16_BIG;
  93         }
  94         return (channels > 1) ? (retval | AD1816A_FMT_STEREO) : retval;
  95 }
  96
  97 static int snd_ad1816a_open(struct snd_ad1816a *chip, unsigned int mode)
  98 {
  99         unsigned long flags;
 100
 101         spin_lock_irqsave(&chip->lock, flags);
 102
 103         if (chip->mode & mode) {
 104                 spin_unlock_irqrestore(&chip->lock, flags);
 105                 return -EAGAIN;
 106         }
 107
 108         switch ((mode &= AD1816A_MODE_OPEN)) {
 109         case AD1816A_MODE_PLAYBACK:
 110                 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS,
 111                         AD1816A_PLAYBACK_IRQ_PENDING, 0x00);
 112                 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
 113                         AD1816A_PLAYBACK_IRQ_ENABLE, 0xffff);
 114                 break;
 115         case AD1816A_MODE_CAPTURE:
 116                 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS,
 117                         AD1816A_CAPTURE_IRQ_PENDING, 0x00);
 118                 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
 119                         AD1816A_CAPTURE_IRQ_ENABLE, 0xffff);
 120                 break;
 121         case AD1816A_MODE_TIMER:
 122                 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS,
 123                         AD1816A_TIMER_IRQ_PENDING, 0x00);
 124                 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
 125                         AD1816A_TIMER_IRQ_ENABLE, 0xffff);
 126         }
 127         chip->mode |= mode;
 128
 129         spin_unlock_irqrestore(&chip->lock, flags);
 130         return 0;
 131 }
 132
 133 static void snd_ad1816a_close(struct snd_ad1816a *chip, unsigned int mode)
 134 {
 135         unsigned long flags;
 136
 137         spin_lock_irqsave(&chip->lock, flags);
 138
 139         switch ((mode &= AD1816A_MODE_OPEN)) {
 140         case AD1816A_MODE_PLAYBACK:
 141                 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS,
 142                         AD1816A_PLAYBACK_IRQ_PENDING, 0x00);
 143                 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
 144                         AD1816A_PLAYBACK_IRQ_ENABLE, 0x0000);
 145                 break;
 146         case AD1816A_MODE_CAPTURE:
 147                 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS,
 148                         AD1816A_CAPTURE_IRQ_PENDING, 0x00);
 149                 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
 150                         AD1816A_CAPTURE_IRQ_ENABLE, 0x0000);
 151                 break;
 152         case AD1816A_MODE_TIMER:
 153                 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS,
 154                         AD1816A_TIMER_IRQ_PENDING, 0x00);
 155                 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
 156                         AD1816A_TIMER_IRQ_ENABLE, 0x0000);
 157         }
 158         if (!((chip->mode &= ~mode) & AD1816A_MODE_OPEN))
 159                 chip->mode = 0;
 160
 161         spin_unlock_irqrestore(&chip->lock, flags);
 162 }
 163
 164
 165 static int snd_ad1816a_trigger(struct snd_ad1816a *chip, unsigned char what,
 166                                int channel, int cmd, int iscapture)
 167 {
 168         int error = 0;
 169
 170         switch (cmd) {
 171         case SNDRV_PCM_TRIGGER_START:
 172         case SNDRV_PCM_TRIGGER_STOP:
 173                 spin_lock(&chip->lock);
 174                 cmd = (cmd == SNDRV_PCM_TRIGGER_START) ? 0xff: 0x00;
 175                 /* if (what & AD1816A_PLAYBACK_ENABLE) */
 176                 /* That is not valid, because playback and capture enable
 177                  * are the same bit pattern, just to different addresses
 178                  */
 179                 if (! iscapture)
 180                         snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG,
 181                                 AD1816A_PLAYBACK_ENABLE, cmd);
 182                 else
 183                         snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG,
 184                                 AD1816A_CAPTURE_ENABLE, cmd);
 185                 spin_unlock(&chip->lock);
 186                 break;
 187         default:
 188                 snd_printk(KERN_WARNING "invalid trigger mode 0x%x.\n", what);
 189                 error = -EINVAL;
 190         }
 191
 192         return error;
 193 }
 194
 195 static int snd_ad1816a_playback_trigger(struct snd_pcm_substream *substream, int cmd)
 196 {
 197         struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
 198         return snd_ad1816a_trigger(chip, AD1816A_PLAYBACK_ENABLE,
 199                                    SNDRV_PCM_STREAM_PLAYBACK, cmd, 0);
 200 }
 201
 202 static int snd_ad1816a_capture_trigger(struct snd_pcm_substream *substream, int cmd)
 203 {
 204         struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
 205         return snd_ad1816a_trigger(chip, AD1816A_CAPTURE_ENABLE,
 206                                    SNDRV_PCM_STREAM_CAPTURE, cmd, 1);
 207 }
 208
 209 static int snd_ad1816a_hw_params(struct snd_pcm_substream *substream,
 210                                  struct snd_pcm_hw_params *hw_params)
 211 {
 212         return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
 213 }
 214
 215 static int snd_ad1816a_hw_free(struct snd_pcm_substream *substream)
 216 {
 217         return snd_pcm_lib_free_pages(substream);
 218 }
 219
 220 static int snd_ad1816a_playback_prepare(struct snd_pcm_substream *substream)
 221 {
 222         struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
 223         unsigned long flags;
 224         struct snd_pcm_runtime *runtime = substream->runtime;
 225         unsigned int size, rate;
 226
 227         spin_lock_irqsave(&chip->lock, flags);
 228
 229         chip->p_dma_size = size = snd_pcm_lib_buffer_bytes(substream);
 230         snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG,
 231                 AD1816A_PLAYBACK_ENABLE | AD1816A_PLAYBACK_PIO, 0x00);
 232
 233         snd_dma_program(chip->dma1, runtime->dma_addr, size,
 234                         DMA_MODE_WRITE | DMA_AUTOINIT);
 235
 236         rate = runtime->rate;
 237         if (chip->clock_freq)
 238                 rate = (rate * 33000) / chip->clock_freq;
 239         snd_ad1816a_write(chip, AD1816A_PLAYBACK_SAMPLE_RATE, rate);
 240         snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG,
 241                 AD1816A_FMT_ALL | AD1816A_FMT_STEREO,
 242                 snd_ad1816a_get_format(chip, runtime->format,
 243                         runtime->channels));
 244
 245         snd_ad1816a_write(chip, AD1816A_PLAYBACK_BASE_COUNT,
 246                 snd_pcm_lib_period_bytes(substream) / 4 - 1);
 247
 248         spin_unlock_irqrestore(&chip->lock, flags);
 249         return 0;
 250 }
 251
 252 static int snd_ad1816a_capture_prepare(struct snd_pcm_substream *substream)
 253 {
 254         struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
 255         unsigned long flags;
 256         struct snd_pcm_runtime *runtime = substream->runtime;
 257         unsigned int size, rate;
 258
 259         spin_lock_irqsave(&chip->lock, flags);
 260
 261         chip->c_dma_size = size = snd_pcm_lib_buffer_bytes(substream);
 262         snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG,
 263                 AD1816A_CAPTURE_ENABLE | AD1816A_CAPTURE_PIO, 0x00);
 264
 265         snd_dma_program(chip->dma2, runtime->dma_addr, size,
 266                         DMA_MODE_READ | DMA_AUTOINIT);
 267
 268         rate = runtime->rate;
 269         if (chip->clock_freq)
 270                 rate = (rate * 33000) / chip->clock_freq;
 271         snd_ad1816a_write(chip, AD1816A_CAPTURE_SAMPLE_RATE, rate);
 272         snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG,
 273                 AD1816A_FMT_ALL | AD1816A_FMT_STEREO,
 274                 snd_ad1816a_get_format(chip, runtime->format,
 275                         runtime->channels));
 276
 277         snd_ad1816a_write(chip, AD1816A_CAPTURE_BASE_COUNT,
 278                 snd_pcm_lib_period_bytes(substream) / 4 - 1);
 279
 280         spin_unlock_irqrestore(&chip->lock, flags);
 281         return 0;
 282 }
 283
 284
 285 static snd_pcm_uframes_t snd_ad1816a_playback_pointer(struct snd_pcm_substream *substream)
 286 {
 287         struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
 288         size_t ptr;
 289         if (!(chip->mode & AD1816A_MODE_PLAYBACK))
 290                 return 0;
 291         ptr = snd_dma_pointer(chip->dma1, chip->p_dma_size);
 292         return bytes_to_frames(substream->runtime, ptr);
 293 }
 294
 295 static snd_pcm_uframes_t snd_ad1816a_capture_pointer(struct snd_pcm_substream *substream)
 296 {
 297         struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
 298         size_t ptr;
 299         if (!(chip->mode & AD1816A_MODE_CAPTURE))
 300                 return 0;
 301         ptr = snd_dma_pointer(chip->dma2, chip->c_dma_size);
 302         return bytes_to_frames(substream->runtime, ptr);
 303 }
 304
 305
 306 static irqreturn_t snd_ad1816a_interrupt(int irq, void *dev_id)
 307 {
 308         struct snd_ad1816a *chip = dev_id;
 309         unsigned char status;
 310
 311         spin_lock(&chip->lock);
 312         status = snd_ad1816a_in(chip, AD1816A_INTERRUPT_STATUS);
 313         spin_unlock(&chip->lock);
 314
 315         if ((status & AD1816A_PLAYBACK_IRQ_PENDING) && chip->playback_substream)
 316                 snd_pcm_period_elapsed(chip->playback_substream);
 317
 318         if ((status & AD1816A_CAPTURE_IRQ_PENDING) && chip->capture_substream)
 319                 snd_pcm_period_elapsed(chip->capture_substream);
 320
 321         if ((status & AD1816A_TIMER_IRQ_PENDING) && chip->timer)
 322                 snd_timer_interrupt(chip->timer, chip->timer->sticks);
 323
 324         spin_lock(&chip->lock);
 325         snd_ad1816a_out(chip, AD1816A_INTERRUPT_STATUS, 0x00);
 326         spin_unlock(&chip->lock);
 327         return IRQ_HANDLED;
 328 }
 329
 330
 331 static const struct snd_pcm_hardware snd_ad1816a_playback = {
 332         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 333                                  SNDRV_PCM_INFO_MMAP_VALID),
 334         .formats =              (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW |
 335                                  SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
 336                                  SNDRV_PCM_FMTBIT_S16_BE),
 337         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
 338         .rate_min =             4000,
 339         .rate_max =             55200,
 340         .channels_min =         1,
 341         .channels_max =         2,
 342         .buffer_bytes_max =     (128*1024),
 343         .period_bytes_min =     64,
 344         .period_bytes_max =     (128*1024),
 345         .periods_min =          1,
 346         .periods_max =          1024,
 347         .fifo_size =            0,
 348 };
 349
 350 static const struct snd_pcm_hardware snd_ad1816a_capture = {
 351         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 352                                  SNDRV_PCM_INFO_MMAP_VALID),
 353         .formats =              (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW |
 354                                  SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
 355                                  SNDRV_PCM_FMTBIT_S16_BE),
 356         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
 357         .rate_min =             4000,
 358         .rate_max =             55200,
 359         .channels_min =         1,
 360         .channels_max =         2,
 361         .buffer_bytes_max =     (128*1024),
 362         .period_bytes_min =     64,
 363         .period_bytes_max =     (128*1024),
 364         .periods_min =          1,
 365         .periods_max =          1024,
 366         .fifo_size =            0,
 367 };
 368
 369 static int snd_ad1816a_timer_close(struct snd_timer *timer)
 370 {
 371         struct snd_ad1816a *chip = snd_timer_chip(timer);
 372         snd_ad1816a_close(chip, AD1816A_MODE_TIMER);
 373         return 0;
 374 }
 375
 376 static int snd_ad1816a_timer_open(struct snd_timer *timer)
 377 {
 378         struct snd_ad1816a *chip = snd_timer_chip(timer);
 379         snd_ad1816a_open(chip, AD1816A_MODE_TIMER);
 380         return 0;
 381 }
 382
 383 static unsigned long snd_ad1816a_timer_resolution(struct snd_timer *timer)
 384 {
 385         if (snd_BUG_ON(!timer))
 386                 return 0;
 387
 388         return 10000;
 389 }
 390
 391 static int snd_ad1816a_timer_start(struct snd_timer *timer)
 392 {
 393         unsigned short bits;
 394         unsigned long flags;
 395         struct snd_ad1816a *chip = snd_timer_chip(timer);
 396         spin_lock_irqsave(&chip->lock, flags);
 397         bits = snd_ad1816a_read(chip, AD1816A_INTERRUPT_ENABLE);
 398
 399         if (!(bits & AD1816A_TIMER_ENABLE)) {
 400                 snd_ad1816a_write(chip, AD1816A_TIMER_BASE_COUNT,
 401                         timer->sticks & 0xffff);
 402
 403                 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
 404                         AD1816A_TIMER_ENABLE, 0xffff);
 405         }
 406         spin_unlock_irqrestore(&chip->lock, flags);
 407         return 0;
 408 }
 409
 410 static int snd_ad1816a_timer_stop(struct snd_timer *timer)
 411 {
 412         unsigned long flags;
 413         struct snd_ad1816a *chip = snd_timer_chip(timer);
 414         spin_lock_irqsave(&chip->lock, flags);
 415
 416         snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
 417                 AD1816A_TIMER_ENABLE, 0x0000);
 418
 419         spin_unlock_irqrestore(&chip->lock, flags);
 420         return 0;
 421 }
 422
 423 static struct snd_timer_hardware snd_ad1816a_timer_table = {
 424         .flags =        SNDRV_TIMER_HW_AUTO,
 425         .resolution =   10000,
 426         .ticks =        65535,
 427         .open =         snd_ad1816a_timer_open,
 428         .close =        snd_ad1816a_timer_close,
 429         .c_resolution = snd_ad1816a_timer_resolution,
 430         .start =        snd_ad1816a_timer_start,
 431         .stop =         snd_ad1816a_timer_stop,
 432 };
 433
 434 static int snd_ad1816a_playback_open(struct snd_pcm_substream *substream)
 435 {
 436         struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
 437         struct snd_pcm_runtime *runtime = substream->runtime;
 438         int error;
 439
 440         if ((error = snd_ad1816a_open(chip, AD1816A_MODE_PLAYBACK)) < 0)
 441                 return error;
 442         runtime->hw = snd_ad1816a_playback;
 443         snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.buffer_bytes_max);
 444         snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.period_bytes_max);
 445         chip->playback_substream = substream;
 446         return 0;
 447 }
 448
 449 static int snd_ad1816a_capture_open(struct snd_pcm_substream *substream)
 450 {
 451         struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
 452         struct snd_pcm_runtime *runtime = substream->runtime;
 453         int error;
 454
 455         if ((error = snd_ad1816a_open(chip, AD1816A_MODE_CAPTURE)) < 0)
 456                 return error;
 457         runtime->hw = snd_ad1816a_capture;
 458         snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.buffer_bytes_max);
 459         snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.period_bytes_max);
 460         chip->capture_substream = substream;
 461         return 0;
 462 }
 463
 464 static int snd_ad1816a_playback_close(struct snd_pcm_substream *substream)
 465 {
 466         struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
 467
 468         chip->playback_substream = NULL;
 469         snd_ad1816a_close(chip, AD1816A_MODE_PLAYBACK);
 470         return 0;
 471 }
 472
 473 static int snd_ad1816a_capture_close(struct snd_pcm_substream *substream)
 474 {
 475         struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
 476
 477         chip->capture_substream = NULL;
 478         snd_ad1816a_close(chip, AD1816A_MODE_CAPTURE);
 479         return 0;
 480 }
 481
 482
 483 static void snd_ad1816a_init(struct snd_ad1816a *chip)
 484 {
 485         unsigned long flags;
 486
 487         spin_lock_irqsave(&chip->lock, flags);
 488
 489         snd_ad1816a_out(chip, AD1816A_INTERRUPT_STATUS, 0x00);
 490         snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG,
 491                 AD1816A_PLAYBACK_ENABLE | AD1816A_PLAYBACK_PIO, 0x00);
 492         snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG,
 493                 AD1816A_CAPTURE_ENABLE | AD1816A_CAPTURE_PIO, 0x00);
 494         snd_ad1816a_write(chip, AD1816A_INTERRUPT_ENABLE, 0x0000);
 495         snd_ad1816a_write_mask(chip, AD1816A_CHIP_CONFIG,
 496                 AD1816A_CAPTURE_NOT_EQUAL | AD1816A_WSS_ENABLE, 0xffff);
 497         snd_ad1816a_write(chip, AD1816A_DSP_CONFIG, 0x0000);
 498         snd_ad1816a_write(chip, AD1816A_POWERDOWN_CTRL, 0x0000);
 499
 500         spin_unlock_irqrestore(&chip->lock, flags);
 501 }
 502
 503 #ifdef CONFIG_PM
 504 void snd_ad1816a_suspend(struct snd_ad1816a *chip)
 505 {
 506         int reg;
 507         unsigned long flags;
 508
 509         spin_lock_irqsave(&chip->lock, flags);
 510         for (reg = 0; reg < 48; reg++)
 511                 chip->image[reg] = snd_ad1816a_read(chip, reg);
 512         spin_unlock_irqrestore(&chip->lock, flags);
 513 }
 514
 515 void snd_ad1816a_resume(struct snd_ad1816a *chip)
 516 {
 517         int reg;
 518         unsigned long flags;
 519
 520         snd_ad1816a_init(chip);
 521         spin_lock_irqsave(&chip->lock, flags);
 522         for (reg = 0; reg < 48; reg++)
 523                 snd_ad1816a_write(chip, reg, chip->image[reg]);
 524         spin_unlock_irqrestore(&chip->lock, flags);
 525 }
 526 #endif
 527
 528 static int snd_ad1816a_probe(struct snd_ad1816a *chip)
 529 {
 530         unsigned long flags;
 531
 532         spin_lock_irqsave(&chip->lock, flags);
 533
 534         switch (chip->version = snd_ad1816a_read(chip, AD1816A_VERSION_ID)) {
 535         case 0:
 536                 chip->hardware = AD1816A_HW_AD1815;
 537                 break;
 538         case 1:
 539                 chip->hardware = AD1816A_HW_AD18MAX10;
 540                 break;
 541         case 3:
 542                 chip->hardware = AD1816A_HW_AD1816A;
 543                 break;
 544         default:
 545                 chip->hardware = AD1816A_HW_AUTO;
 546         }
 547
 548         spin_unlock_irqrestore(&chip->lock, flags);
 549         return 0;
 550 }
 551
 552 static int snd_ad1816a_free(struct snd_ad1816a *chip)
 553 {
 554         release_and_free_resource(chip->res_port);
 555         if (chip->irq >= 0)
 556                 free_irq(chip->irq, (void *) chip);
 557         if (chip->dma1 >= 0) {
 558                 snd_dma_disable(chip->dma1);
 559                 free_dma(chip->dma1);
 560         }
 561         if (chip->dma2 >= 0) {
 562                 snd_dma_disable(chip->dma2);
 563                 free_dma(chip->dma2);
 564         }
 565         return 0;
 566 }
 567
 568 static int snd_ad1816a_dev_free(struct snd_device *device)
 569 {
 570         struct snd_ad1816a *chip = device->device_data;
 571         return snd_ad1816a_free(chip);
 572 }
 573
 574 static const char *snd_ad1816a_chip_id(struct snd_ad1816a *chip)
 575 {
 576         switch (chip->hardware) {
 577         case AD1816A_HW_AD1816A: return "AD1816A";
 578         case AD1816A_HW_AD1815: return "AD1815";
 579         case AD1816A_HW_AD18MAX10: return "AD18max10";
 580         default:
 581                 snd_printk(KERN_WARNING "Unknown chip version %d:%d.\n",
 582                         chip->version, chip->hardware);
 583                 return "AD1816A - unknown";
 584         }
 585 }
 586
 587 int snd_ad1816a_create(struct snd_card *card,
 588                        unsigned long port, int irq, int dma1, int dma2,
 589                        struct snd_ad1816a *chip)
 590 {
 591         static struct snd_device_ops ops = {
 592                 .dev_free =     snd_ad1816a_dev_free,
 593         };
 594         int error;
 595
 596         chip->irq = -1;
 597         chip->dma1 = -1;
 598         chip->dma2 = -1;
 599
 600         if ((chip->res_port = request_region(port, 16, "AD1816A")) == NULL) {
 601                 snd_printk(KERN_ERR "ad1816a: can't grab port 0x%lx\n", port);
 602                 snd_ad1816a_free(chip);
 603                 return -EBUSY;
 604         }
 605         if (request_irq(irq, snd_ad1816a_interrupt, 0, "AD1816A", (void *) chip)) {
 606                 snd_printk(KERN_ERR "ad1816a: can't grab IRQ %d\n", irq);
 607                 snd_ad1816a_free(chip);
 608                 return -EBUSY;
 609         }
 610         chip->irq = irq;
 611         if (request_dma(dma1, "AD1816A - 1")) {
 612                 snd_printk(KERN_ERR "ad1816a: can't grab DMA1 %d\n", dma1);
 613                 snd_ad1816a_free(chip);
 614                 return -EBUSY;
 615         }
 616         chip->dma1 = dma1;
 617         if (request_dma(dma2, "AD1816A - 2")) {
 618                 snd_printk(KERN_ERR "ad1816a: can't grab DMA2 %d\n", dma2);
 619                 snd_ad1816a_free(chip);
 620                 return -EBUSY;
 621         }
 622         chip->dma2 = dma2;
 623
 624         chip->card = card;
 625         chip->port = port;
 626         spin_lock_init(&chip->lock);
 627
 628         if ((error = snd_ad1816a_probe(chip))) {
 629                 snd_ad1816a_free(chip);
 630                 return error;
 631         }
 632
 633         snd_ad1816a_init(chip);
 634
 635         /* Register device */
 636         if ((error = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
 637                 snd_ad1816a_free(chip);
 638                 return error;
 639         }
 640
 641         return 0;
 642 }
 643
 644 static const struct snd_pcm_ops snd_ad1816a_playback_ops = {
 645         .open =         snd_ad1816a_playback_open,
 646         .close =        snd_ad1816a_playback_close,
 647         .ioctl =        snd_pcm_lib_ioctl,
 648         .hw_params =    snd_ad1816a_hw_params,
 649         .hw_free =      snd_ad1816a_hw_free,
 650         .prepare =      snd_ad1816a_playback_prepare,
 651         .trigger =      snd_ad1816a_playback_trigger,
 652         .pointer =      snd_ad1816a_playback_pointer,
 653 };
 654
 655 static const struct snd_pcm_ops snd_ad1816a_capture_ops = {
 656         .open =         snd_ad1816a_capture_open,
 657         .close =        snd_ad1816a_capture_close,
 658         .ioctl =        snd_pcm_lib_ioctl,
 659         .hw_params =    snd_ad1816a_hw_params,
 660         .hw_free =      snd_ad1816a_hw_free,
 661         .prepare =      snd_ad1816a_capture_prepare,
 662         .trigger =      snd_ad1816a_capture_trigger,
 663         .pointer =      snd_ad1816a_capture_pointer,
 664 };
 665
 666 int snd_ad1816a_pcm(struct snd_ad1816a *chip, int device)
 667 {
 668         int error;
 669         struct snd_pcm *pcm;
 670
 671         if ((error = snd_pcm_new(chip->card, "AD1816A", device, 1, 1, &pcm)))
 672                 return error;
 673
 674         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ad1816a_playback_ops);
 675         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ad1816a_capture_ops);
 676
 677         pcm->private_data = chip;
 678         pcm->info_flags = (chip->dma1 == chip->dma2 ) ? SNDRV_PCM_INFO_JOINT_DUPLEX : 0;
 679
 680         strcpy(pcm->name, snd_ad1816a_chip_id(chip));
 681         snd_ad1816a_init(chip);
 682
 683         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
 684                                               chip->card->dev,
 685                                               64*1024, chip->dma1 > 3 || chip->dma2 > 3 ? 128*1024 : 64*1024);
 686
 687         chip->pcm = pcm;
 688         return 0;
 689 }
 690
 691 int snd_ad1816a_timer(struct snd_ad1816a *chip, int device)
 692 {
 693         struct snd_timer *timer;
 694         struct snd_timer_id tid;
 695         int error;
 696
 697         tid.dev_class = SNDRV_TIMER_CLASS_CARD;
 698         tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE;
 699         tid.card = chip->card->number;
 700         tid.device = device;
 701         tid.subdevice = 0;
 702         if ((error = snd_timer_new(chip->card, "AD1816A", &tid, &timer)) < 0)
 703                 return error;
 704         strcpy(timer->name, snd_ad1816a_chip_id(chip));
 705         timer->private_data = chip;
 706         chip->timer = timer;
 707         timer->hw = snd_ad1816a_timer_table;
 708         return 0;
 709 }
 710
 711 /*
 712  *
 713  */
 714
 715 static int snd_ad1816a_info_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 716 {
 717         static const char * const texts[8] = {
 718                 "Line", "Mix", "CD", "Synth", "Video",
 719                 "Mic", "Phone",
 720         };
 721
 722         return snd_ctl_enum_info(uinfo, 2, 7, texts);
 723 }
 724
 725 static int snd_ad1816a_get_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 726 {
 727         struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
 728         unsigned long flags;
 729         unsigned short val;
 730
 731         spin_lock_irqsave(&chip->lock, flags);
 732         val = snd_ad1816a_read(chip, AD1816A_ADC_SOURCE_SEL);
 733         spin_unlock_irqrestore(&chip->lock, flags);
 734         ucontrol->value.enumerated.item[0] = (val >> 12) & 7;
 735         ucontrol->value.enumerated.item[1] = (val >> 4) & 7;
 736         return 0;
 737 }
 738
 739 static int snd_ad1816a_put_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 740 {
 741         struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
 742         unsigned long flags;
 743         unsigned short val;
 744         int change;
 745
 746         if (ucontrol->value.enumerated.item[0] > 6 ||
 747             ucontrol->value.enumerated.item[1] > 6)
 748                 return -EINVAL;
 749         val = (ucontrol->value.enumerated.item[0] << 12) |
 750               (ucontrol->value.enumerated.item[1] << 4);
 751         spin_lock_irqsave(&chip->lock, flags);
 752         change = snd_ad1816a_read(chip, AD1816A_ADC_SOURCE_SEL) != val;
 753         snd_ad1816a_write(chip, AD1816A_ADC_SOURCE_SEL, val);
 754         spin_unlock_irqrestore(&chip->lock, flags);
 755         return change;
 756 }
 757
 758 #define AD1816A_SINGLE_TLV(xname, reg, shift, mask, invert, xtlv)       \
 759 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
 760   .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
 761   .name = xname, .info = snd_ad1816a_info_single, \
 762   .get = snd_ad1816a_get_single, .put = snd_ad1816a_put_single, \
 763   .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24), \
 764   .tlv = { .p = (xtlv) } }
 765 #define AD1816A_SINGLE(xname, reg, shift, mask, invert) \
 766 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ad1816a_info_single, \
 767   .get = snd_ad1816a_get_single, .put = snd_ad1816a_put_single, \
 768   .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
 769
 770 static int snd_ad1816a_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 771 {
 772         int mask = (kcontrol->private_value >> 16) & 0xff;
 773
 774         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 775         uinfo->count = 1;
 776         uinfo->value.integer.min = 0;
 777         uinfo->value.integer.max = mask;
 778         return 0;
 779 }
 780
 781 static int snd_ad1816a_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 782 {
 783         struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
 784         unsigned long flags;
 785         int reg = kcontrol->private_value & 0xff;
 786         int shift = (kcontrol->private_value >> 8) & 0xff;
 787         int mask = (kcontrol->private_value >> 16) & 0xff;
 788         int invert = (kcontrol->private_value >> 24) & 0xff;
 789
 790         spin_lock_irqsave(&chip->lock, flags);
 791         ucontrol->value.integer.value[0] = (snd_ad1816a_read(chip, reg) >> shift) & mask;
 792         spin_unlock_irqrestore(&chip->lock, flags);
 793         if (invert)
 794                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
 795         return 0;
 796 }
 797
 798 static int snd_ad1816a_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 799 {
 800         struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
 801         unsigned long flags;
 802         int reg = kcontrol->private_value & 0xff;
 803         int shift = (kcontrol->private_value >> 8) & 0xff;
 804         int mask = (kcontrol->private_value >> 16) & 0xff;
 805         int invert = (kcontrol->private_value >> 24) & 0xff;
 806         int change;
 807         unsigned short old_val, val;
 808
 809         val = (ucontrol->value.integer.value[0] & mask);
 810         if (invert)
 811                 val = mask - val;
 812         val <<= shift;
 813         spin_lock_irqsave(&chip->lock, flags);
 814         old_val = snd_ad1816a_read(chip, reg);
 815         val = (old_val & ~(mask << shift)) | val;
 816         change = val != old_val;
 817         snd_ad1816a_write(chip, reg, val);
 818         spin_unlock_irqrestore(&chip->lock, flags);
 819         return change;
 820 }
 821
 822 #define AD1816A_DOUBLE_TLV(xname, reg, shift_left, shift_right, mask, invert, xtlv) \
 823 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
 824   .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
 825   .name = xname, .info = snd_ad1816a_info_double,               \
 826   .get = snd_ad1816a_get_double, .put = snd_ad1816a_put_double, \
 827   .private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24), \
 828   .tlv = { .p = (xtlv) } }
 829
 830 #define AD1816A_DOUBLE(xname, reg, shift_left, shift_right, mask, invert) \
 831 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ad1816a_info_double, \
 832   .get = snd_ad1816a_get_double, .put = snd_ad1816a_put_double, \
 833   .private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24) }
 834
 835 static int snd_ad1816a_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 836 {
 837         int mask = (kcontrol->private_value >> 16) & 0xff;
 838
 839         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 840         uinfo->count = 2;
 841         uinfo->value.integer.min = 0;
 842         uinfo->value.integer.max = mask;
 843         return 0;
 844 }
 845
 846 static int snd_ad1816a_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 847 {
 848         struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
 849         unsigned long flags;
 850         int reg = kcontrol->private_value & 0xff;
 851         int shift_left = (kcontrol->private_value >> 8) & 0x0f;
 852         int shift_right = (kcontrol->private_value >> 12) & 0x0f;
 853         int mask = (kcontrol->private_value >> 16) & 0xff;
 854         int invert = (kcontrol->private_value >> 24) & 0xff;
 855         unsigned short val;
 856
 857         spin_lock_irqsave(&chip->lock, flags);
 858         val = snd_ad1816a_read(chip, reg);
 859         ucontrol->value.integer.value[0] = (val >> shift_left) & mask;
 860         ucontrol->value.integer.value[1] = (val >> shift_right) & mask;
 861         spin_unlock_irqrestore(&chip->lock, flags);
 862         if (invert) {
 863                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
 864                 ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
 865         }
 866         return 0;
 867 }
 868
 869 static int snd_ad1816a_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 870 {
 871         struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
 872         unsigned long flags;
 873         int reg = kcontrol->private_value & 0xff;
 874         int shift_left = (kcontrol->private_value >> 8) & 0x0f;
 875         int shift_right = (kcontrol->private_value >> 12) & 0x0f;
 876         int mask = (kcontrol->private_value >> 16) & 0xff;
 877         int invert = (kcontrol->private_value >> 24) & 0xff;
 878         int change;
 879         unsigned short old_val, val1, val2;
 880
 881         val1 = ucontrol->value.integer.value[0] & mask;
 882         val2 = ucontrol->value.integer.value[1] & mask;
 883         if (invert) {
 884                 val1 = mask - val1;
 885                 val2 = mask - val2;
 886         }
 887         val1 <<= shift_left;
 888         val2 <<= shift_right;
 889         spin_lock_irqsave(&chip->lock, flags);
 890         old_val = snd_ad1816a_read(chip, reg);
 891         val1 = (old_val & ~((mask << shift_left) | (mask << shift_right))) | val1 | val2;
 892         change = val1 != old_val;
 893         snd_ad1816a_write(chip, reg, val1);
 894         spin_unlock_irqrestore(&chip->lock, flags);
 895         return change;
 896 }
 897
 898 static const DECLARE_TLV_DB_SCALE(db_scale_4bit, -4500, 300, 0);
 899 static const DECLARE_TLV_DB_SCALE(db_scale_5bit, -4650, 150, 0);
 900 static const DECLARE_TLV_DB_SCALE(db_scale_6bit, -9450, 150, 0);
 901 static const DECLARE_TLV_DB_SCALE(db_scale_5bit_12db_max, -3450, 150, 0);
 902 static const DECLARE_TLV_DB_SCALE(db_scale_rec_gain, 0, 150, 0);
 903
 904 static struct snd_kcontrol_new snd_ad1816a_controls[] = {
 905 AD1816A_DOUBLE("Master Playback Switch", AD1816A_MASTER_ATT, 15, 7, 1, 1),
 906 AD1816A_DOUBLE_TLV("Master Playback Volume", AD1816A_MASTER_ATT, 8, 0, 31, 1,
 907                    db_scale_5bit),
 908 AD1816A_DOUBLE("PCM Playback Switch", AD1816A_VOICE_ATT, 15, 7, 1, 1),
 909 AD1816A_DOUBLE_TLV("PCM Playback Volume", AD1816A_VOICE_ATT, 8, 0, 63, 1,
 910                    db_scale_6bit),
 911 AD1816A_DOUBLE("Line Playback Switch", AD1816A_LINE_GAIN_ATT, 15, 7, 1, 1),
 912 AD1816A_DOUBLE_TLV("Line Playback Volume", AD1816A_LINE_GAIN_ATT, 8, 0, 31, 1,
 913                    db_scale_5bit_12db_max),
 914 AD1816A_DOUBLE("CD Playback Switch", AD1816A_CD_GAIN_ATT, 15, 7, 1, 1),
 915 AD1816A_DOUBLE_TLV("CD Playback Volume", AD1816A_CD_GAIN_ATT, 8, 0, 31, 1,
 916                    db_scale_5bit_12db_max),
 917 AD1816A_DOUBLE("Synth Playback Switch", AD1816A_SYNTH_GAIN_ATT, 15, 7, 1, 1),
 918 AD1816A_DOUBLE_TLV("Synth Playback Volume", AD1816A_SYNTH_GAIN_ATT, 8, 0, 31, 1,
 919                    db_scale_5bit_12db_max),
 920 AD1816A_DOUBLE("FM Playback Switch", AD1816A_FM_ATT, 15, 7, 1, 1),
 921 AD1816A_DOUBLE_TLV("FM Playback Volume", AD1816A_FM_ATT, 8, 0, 63, 1,
 922                    db_scale_6bit),
 923 AD1816A_SINGLE("Mic Playback Switch", AD1816A_MIC_GAIN_ATT, 15, 1, 1),
 924 AD1816A_SINGLE_TLV("Mic Playback Volume", AD1816A_MIC_GAIN_ATT, 8, 31, 1,
 925                    db_scale_5bit_12db_max),
 926 AD1816A_SINGLE("Mic Boost", AD1816A_MIC_GAIN_ATT, 14, 1, 0),
 927 AD1816A_DOUBLE("Video Playback Switch", AD1816A_VID_GAIN_ATT, 15, 7, 1, 1),
 928 AD1816A_DOUBLE_TLV("Video Playback Volume", AD1816A_VID_GAIN_ATT, 8, 0, 31, 1,
 929                    db_scale_5bit_12db_max),
 930 AD1816A_SINGLE("Phone Capture Switch", AD1816A_PHONE_IN_GAIN_ATT, 15, 1, 1),
 931 AD1816A_SINGLE_TLV("Phone Capture Volume", AD1816A_PHONE_IN_GAIN_ATT, 0, 15, 1,
 932                    db_scale_4bit),
 933 AD1816A_SINGLE("Phone Playback Switch", AD1816A_PHONE_OUT_ATT, 7, 1, 1),
 934 AD1816A_SINGLE_TLV("Phone Playback Volume", AD1816A_PHONE_OUT_ATT, 0, 31, 1,
 935                    db_scale_5bit),
 936 {
 937         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 938         .name = "Capture Source",
 939         .info = snd_ad1816a_info_mux,
 940         .get = snd_ad1816a_get_mux,
 941         .put = snd_ad1816a_put_mux,
 942 },
 943 AD1816A_DOUBLE("Capture Switch", AD1816A_ADC_PGA, 15, 7, 1, 1),
 944 AD1816A_DOUBLE_TLV("Capture Volume", AD1816A_ADC_PGA, 8, 0, 15, 0,
 945                    db_scale_rec_gain),
 946 AD1816A_SINGLE("3D Control - Switch", AD1816A_3D_PHAT_CTRL, 15, 1, 1),
 947 AD1816A_SINGLE("3D Control - Level", AD1816A_3D_PHAT_CTRL, 0, 15, 0),
 948 };
 949
 950 int snd_ad1816a_mixer(struct snd_ad1816a *chip)
 951 {
 952         struct snd_card *card;
 953         unsigned int idx;
 954         int err;
 955
 956         if (snd_BUG_ON(!chip || !chip->card))
 957                 return -EINVAL;
 958
 959         card = chip->card;
 960
 961         strcpy(card->mixername, snd_ad1816a_chip_id(chip));
 962
 963         for (idx = 0; idx < ARRAY_SIZE(snd_ad1816a_controls); idx++) {
 964                 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_ad1816a_controls[idx], chip))) < 0)
 965                         return err;
 966         }
 967         return 0;
 968 }