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