sound/pci/emu10k1/p16v.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  *  Copyright (c) by James Courtier-Dutton <James@superbug.demon.co.uk>
   4  *  Driver p16v chips
   5  *  Version: 0.25
   6  *
   7  *  FEATURES currently supported:
   8  *    Output fixed at S32_LE, 2 channel to hw:0,0
   9  *    Rates: 44.1, 48, 96, 192.
  10  *
  11  *  Changelog:
  12  *  0.8
  13  *    Use separate card based buffer for periods table.
  14  *  0.9
  15  *    Use 2 channel output streams instead of 8 channel.
  16  *       (8 channel output streams might be good for ASIO type output)
  17  *    Corrected speaker output, so Front -> Front etc.
  18  *  0.10
  19  *    Fixed missed interrupts.
  20  *  0.11
  21  *    Add Sound card model number and names.
  22  *    Add Analog volume controls.
  23  *  0.12
  24  *    Corrected playback interrupts. Now interrupt per period, instead of half period.
  25  *  0.13
  26  *    Use single trigger for multichannel.
  27  *  0.14
  28  *    Mic capture now works at fixed: S32_LE, 96000Hz, Stereo.
  29  *  0.15
  30  *    Force buffer_size / period_size == INTEGER.
  31  *  0.16
  32  *    Update p16v.c to work with changed alsa api.
  33  *  0.17
  34  *    Update p16v.c to work with changed alsa api. Removed boot_devs.
  35  *  0.18
  36  *    Merging with snd-emu10k1 driver.
  37  *  0.19
  38  *    One stereo channel at 24bit now works.
  39  *  0.20
  40  *    Added better register defines.
  41  *  0.21
  42  *    Integrated with snd-emu10k1 driver.
  43  *  0.22
  44  *    Removed #if 0 ... #endif
  45  *  0.23
  46  *    Implement different capture rates.
  47  *  0.24
  48  *    Implement different capture source channels.
  49  *    e.g. When HD Capture source is set to SPDIF,
  50  *    setting HD Capture channel to 0 captures from CDROM digital input.
  51  *    setting HD Capture channel to 1 captures from SPDIF in.
  52  *  0.25
  53  *    Include capture buffer sizes.
  54  *
  55  *  BUGS:
  56  *    Some stability problems when unloading the snd-p16v kernel module.
  57  *    --
  58  *
  59  *  TODO:
  60  *    SPDIF out.
  61  *    Find out how to change capture sample rates. E.g. To record SPDIF at 48000Hz.
  62  *    Currently capture fixed at 48000Hz.
  63  *
  64  *    --
  65  *  GENERAL INFO:
  66  *    Model: SB0240
  67  *    P16V Chip: CA0151-DBS
  68  *    Audigy 2 Chip: CA0102-IAT
  69  *    AC97 Codec: STAC 9721
  70  *    ADC: Philips 1361T (Stereo 24bit)
  71  *    DAC: CS4382-K (8-channel, 24bit, 192Khz)
  72  *
  73  *  This code was initially based on code from ALSA's emu10k1x.c which is:
  74  *  Copyright (c) by Francisco Moraes <fmoraes@nc.rr.com>
  75  */
  76 #include <linux/delay.h>
  77 #include <linux/init.h>
  78 #include <linux/interrupt.h>
  79 #include <linux/pci.h>
  80 #include <linux/slab.h>
  81 #include <linux/vmalloc.h>
  82 #include <linux/moduleparam.h>
  83 #include <sound/core.h>
  84 #include <sound/initval.h>
  85 #include <sound/pcm.h>
  86 #include <sound/ac97_codec.h>
  87 #include <sound/info.h>
  88 #include <sound/tlv.h>
  89 #include <sound/emu10k1.h>
  90 #include "p16v.h"
  91
  92 #define SET_CHANNEL 0  /* Testing channel outputs 0=Front, 1=Center/LFE, 2=Unknown, 3=Rear */
  93 #define PCM_FRONT_CHANNEL 0
  94 #define PCM_REAR_CHANNEL 1
  95 #define PCM_CENTER_LFE_CHANNEL 2
  96 #define PCM_SIDE_CHANNEL 3
  97 #define CONTROL_FRONT_CHANNEL 0
  98 #define CONTROL_REAR_CHANNEL 3
  99 #define CONTROL_CENTER_LFE_CHANNEL 1
 100 #define CONTROL_SIDE_CHANNEL 2
 101
 102 /* Card IDs:
 103  * Class 0401: 1102:0004 (rev 04) Subsystem: 1102:2002 -> Audigy2 ZS 7.1 Model:SB0350
 104  * Class 0401: 1102:0004 (rev 04) Subsystem: 1102:1007 -> Audigy2 6.1    Model:SB0240
 105  * Class 0401: 1102:0004 (rev 04) Subsystem: 1102:1002 -> Audigy2 Platinum  Model:SB msb0240230009266
 106  * Class 0401: 1102:0004 (rev 04) Subsystem: 1102:2007 -> Audigy4 Pro Model:SB0380 M1SB0380472001901E
 107  *
 108  */
 109
 110  /* hardware definition */
 111 static const struct snd_pcm_hardware snd_p16v_playback_hw = {
 112         .info =                 SNDRV_PCM_INFO_MMAP |
 113                                 SNDRV_PCM_INFO_INTERLEAVED |
 114                                 SNDRV_PCM_INFO_BLOCK_TRANSFER |
 115                                 SNDRV_PCM_INFO_RESUME |
 116                                 SNDRV_PCM_INFO_MMAP_VALID |
 117                                 SNDRV_PCM_INFO_SYNC_START,
 118         .formats =              SNDRV_PCM_FMTBIT_S32_LE, /* Only supports 24-bit samples padded to 32 bits. */
 119         .rates =                SNDRV_PCM_RATE_192000 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_44100,
 120         .rate_min =             44100,
 121         .rate_max =             192000,
 122         .channels_min =         8,
 123         .channels_max =         8,
 124         .buffer_bytes_max =     ((65536 - 64) * 8),
 125         .period_bytes_min =     64,
 126         .period_bytes_max =     (65536 - 64),
 127         .periods_min =          2,
 128         .periods_max =          8,
 129         .fifo_size =            0,
 130 };
 131
 132 static const struct snd_pcm_hardware snd_p16v_capture_hw = {
 133         .info =                 (SNDRV_PCM_INFO_MMAP |
 134                                  SNDRV_PCM_INFO_INTERLEAVED |
 135                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
 136                                  SNDRV_PCM_INFO_RESUME |
 137                                  SNDRV_PCM_INFO_MMAP_VALID),
 138         .formats =              SNDRV_PCM_FMTBIT_S32_LE,
 139         .rates =                SNDRV_PCM_RATE_192000 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_44100,
 140         .rate_min =             44100,
 141         .rate_max =             192000,
 142         .channels_min =         2,
 143         .channels_max =         2,
 144         .buffer_bytes_max =     (65536 - 64),
 145         .period_bytes_min =     64,
 146         .period_bytes_max =     (65536 - 128) >> 1,  /* size has to be N*64 bytes */
 147         .periods_min =          2,
 148         .periods_max =          2,
 149         .fifo_size =            0,
 150 };
 151
 152 static void snd_p16v_pcm_free_substream(struct snd_pcm_runtime *runtime)
 153 {
 154         struct snd_emu10k1_pcm *epcm = runtime->private_data;
 155
 156         kfree(epcm);
 157 }
 158
 159 /* open_playback callback */
 160 static int snd_p16v_pcm_open_playback_channel(struct snd_pcm_substream *substream, int channel_id)
 161 {
 162         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 163         struct snd_emu10k1_voice *channel = &(emu->p16v_voices[channel_id]);
 164         struct snd_emu10k1_pcm *epcm;
 165         struct snd_pcm_runtime *runtime = substream->runtime;
 166         int err;
 167
 168         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
 169         /* dev_dbg(emu->card->dev, "epcm kcalloc: %p\n", epcm); */
 170
 171         if (epcm == NULL)
 172                 return -ENOMEM;
 173         epcm->emu = emu;
 174         epcm->substream = substream;
 175         /*
 176         dev_dbg(emu->card->dev, "epcm device=%d, channel_id=%d\n",
 177                    substream->pcm->device, channel_id);
 178         */
 179         runtime->private_data = epcm;
 180         runtime->private_free = snd_p16v_pcm_free_substream;
 181
 182         runtime->hw = snd_p16v_playback_hw;
 183
 184         channel->emu = emu;
 185         channel->number = channel_id;
 186
 187         channel->use=1;
 188 #if 0 /* debug */
 189         dev_dbg(emu->card->dev,
 190                    "p16v: open channel_id=%d, channel=%p, use=0x%x\n",
 191                    channel_id, channel, channel->use);
 192         dev_dbg(emu->card->dev, "open:channel_id=%d, chip=%p, channel=%p\n",
 193                channel_id, chip, channel);
 194 #endif /* debug */
 195         /* channel->interrupt = snd_p16v_pcm_channel_interrupt; */
 196         channel->epcm = epcm;
 197         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 198                 return err;
 199
 200         runtime->sync.id32[0] = substream->pcm->card->number;
 201         runtime->sync.id32[1] = 'P';
 202         runtime->sync.id32[2] = 16;
 203         runtime->sync.id32[3] = 'V';
 204
 205         return 0;
 206 }
 207 /* open_capture callback */
 208 static int snd_p16v_pcm_open_capture_channel(struct snd_pcm_substream *substream, int channel_id)
 209 {
 210         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 211         struct snd_emu10k1_voice *channel = &(emu->p16v_capture_voice);
 212         struct snd_emu10k1_pcm *epcm;
 213         struct snd_pcm_runtime *runtime = substream->runtime;
 214         int err;
 215
 216         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
 217         /* dev_dbg(emu->card->dev, "epcm kcalloc: %p\n", epcm); */
 218
 219         if (epcm == NULL)
 220                 return -ENOMEM;
 221         epcm->emu = emu;
 222         epcm->substream = substream;
 223         /*
 224         dev_dbg(emu->card->dev, "epcm device=%d, channel_id=%d\n",
 225                    substream->pcm->device, channel_id);
 226         */
 227         runtime->private_data = epcm;
 228         runtime->private_free = snd_p16v_pcm_free_substream;
 229
 230         runtime->hw = snd_p16v_capture_hw;
 231
 232         channel->emu = emu;
 233         channel->number = channel_id;
 234
 235         channel->use=1;
 236 #if 0 /* debug */
 237         dev_dbg(emu->card->dev,
 238                    "p16v: open channel_id=%d, channel=%p, use=0x%x\n",
 239                    channel_id, channel, channel->use);
 240         dev_dbg(emu->card->dev, "open:channel_id=%d, chip=%p, channel=%p\n",
 241                channel_id, chip, channel);
 242 #endif /* debug */
 243         /* channel->interrupt = snd_p16v_pcm_channel_interrupt; */
 244         channel->epcm = epcm;
 245         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 246                 return err;
 247
 248         return 0;
 249 }
 250
 251
 252 /* close callback */
 253 static int snd_p16v_pcm_close_playback(struct snd_pcm_substream *substream)
 254 {
 255         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 256         //struct snd_pcm_runtime *runtime = substream->runtime;
 257         //struct snd_emu10k1_pcm *epcm = runtime->private_data;
 258         emu->p16v_voices[substream->pcm->device - emu->p16v_device_offset].use = 0;
 259         /* FIXME: maybe zero others */
 260         return 0;
 261 }
 262
 263 /* close callback */
 264 static int snd_p16v_pcm_close_capture(struct snd_pcm_substream *substream)
 265 {
 266         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 267         //struct snd_pcm_runtime *runtime = substream->runtime;
 268         //struct snd_emu10k1_pcm *epcm = runtime->private_data;
 269         emu->p16v_capture_voice.use = 0;
 270         /* FIXME: maybe zero others */
 271         return 0;
 272 }
 273
 274 static int snd_p16v_pcm_open_playback_front(struct snd_pcm_substream *substream)
 275 {
 276         return snd_p16v_pcm_open_playback_channel(substream, PCM_FRONT_CHANNEL);
 277 }
 278
 279 static int snd_p16v_pcm_open_capture(struct snd_pcm_substream *substream)
 280 {
 281         // Only using channel 0 for now, but the card has 2 channels.
 282         return snd_p16v_pcm_open_capture_channel(substream, 0);
 283 }
 284
 285 /* prepare playback callback */
 286 static int snd_p16v_pcm_prepare_playback(struct snd_pcm_substream *substream)
 287 {
 288         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 289         struct snd_pcm_runtime *runtime = substream->runtime;
 290         int channel = substream->pcm->device - emu->p16v_device_offset;
 291         u32 *table_base = (u32 *)(emu->p16v_buffer.area+(8*16*channel));
 292         u32 period_size_bytes = frames_to_bytes(runtime, runtime->period_size);
 293         int i;
 294         u32 tmp;
 295
 296 #if 0 /* debug */
 297         dev_dbg(emu->card->dev,
 298                 "prepare:channel_number=%d, rate=%d, "
 299                    "format=0x%x, channels=%d, buffer_size=%ld, "
 300                    "period_size=%ld, periods=%u, frames_to_bytes=%d\n",
 301                    channel, runtime->rate, runtime->format, runtime->channels,
 302                    runtime->buffer_size, runtime->period_size,
 303                    runtime->periods, frames_to_bytes(runtime, 1));
 304         dev_dbg(emu->card->dev,
 305                 "dma_addr=%x, dma_area=%p, table_base=%p\n",
 306                    runtime->dma_addr, runtime->dma_area, table_base);
 307         dev_dbg(emu->card->dev,
 308                 "dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",
 309                    emu->p16v_buffer.addr, emu->p16v_buffer.area,
 310                    emu->p16v_buffer.bytes);
 311 #endif /* debug */
 312         tmp = snd_emu10k1_ptr_read(emu, A_SPDIF_SAMPLERATE, channel);
 313         switch (runtime->rate) {
 314         case 44100:
 315           snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0xe0e0) | 0x8080);
 316           break;
 317         case 96000:
 318           snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0xe0e0) | 0x4040);
 319           break;
 320         case 192000:
 321           snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0xe0e0) | 0x2020);
 322           break;
 323         case 48000:
 324         default:
 325           snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0xe0e0) | 0x0000);
 326           break;
 327         }
 328         /* FIXME: Check emu->buffer.size before actually writing to it. */
 329         for(i = 0; i < runtime->periods; i++) {
 330                 table_base[i*2]=runtime->dma_addr+(i*period_size_bytes);
 331                 table_base[(i*2)+1]=period_size_bytes<<16;
 332         }
 333
 334         snd_emu10k1_ptr20_write(emu, PLAYBACK_LIST_ADDR, channel, emu->p16v_buffer.addr+(8*16*channel));
 335         snd_emu10k1_ptr20_write(emu, PLAYBACK_LIST_SIZE, channel, (runtime->periods - 1) << 19);
 336         snd_emu10k1_ptr20_write(emu, PLAYBACK_LIST_PTR, channel, 0);
 337         snd_emu10k1_ptr20_write(emu, PLAYBACK_DMA_ADDR, channel, runtime->dma_addr);
 338         //snd_emu10k1_ptr20_write(emu, PLAYBACK_PERIOD_SIZE, channel, frames_to_bytes(runtime, runtime->period_size)<<16); // buffer size in bytes
 339         snd_emu10k1_ptr20_write(emu, PLAYBACK_PERIOD_SIZE, channel, 0); // buffer size in bytes
 340         snd_emu10k1_ptr20_write(emu, PLAYBACK_POINTER, channel, 0);
 341         snd_emu10k1_ptr20_write(emu, 0x07, channel, 0x0);
 342         snd_emu10k1_ptr20_write(emu, 0x08, channel, 0);
 343
 344         return 0;
 345 }
 346
 347 /* prepare capture callback */
 348 static int snd_p16v_pcm_prepare_capture(struct snd_pcm_substream *substream)
 349 {
 350         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 351         struct snd_pcm_runtime *runtime = substream->runtime;
 352         int channel = substream->pcm->device - emu->p16v_device_offset;
 353         u32 tmp;
 354
 355         /*
 356         dev_dbg(emu->card->dev, "prepare capture:channel_number=%d, rate=%d, "
 357                "format=0x%x, channels=%d, buffer_size=%ld, period_size=%ld, "
 358                "frames_to_bytes=%d\n",
 359                channel, runtime->rate, runtime->format, runtime->channels,
 360                runtime->buffer_size, runtime->period_size,
 361                frames_to_bytes(runtime, 1));
 362         */
 363         tmp = snd_emu10k1_ptr_read(emu, A_SPDIF_SAMPLERATE, channel);
 364         switch (runtime->rate) {
 365         case 44100:
 366           snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0x0e00) | 0x0800);
 367           break;
 368         case 96000:
 369           snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0x0e00) | 0x0400);
 370           break;
 371         case 192000:
 372           snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0x0e00) | 0x0200);
 373           break;
 374         case 48000:
 375         default:
 376           snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0x0e00) | 0x0000);
 377           break;
 378         }
 379         /* FIXME: Check emu->buffer.size before actually writing to it. */
 380         snd_emu10k1_ptr20_write(emu, 0x13, channel, 0);
 381         snd_emu10k1_ptr20_write(emu, CAPTURE_DMA_ADDR, channel, runtime->dma_addr);
 382         snd_emu10k1_ptr20_write(emu, CAPTURE_BUFFER_SIZE, channel, frames_to_bytes(runtime, runtime->buffer_size) << 16); // buffer size in bytes
 383         snd_emu10k1_ptr20_write(emu, CAPTURE_POINTER, channel, 0);
 384         //snd_emu10k1_ptr20_write(emu, CAPTURE_SOURCE, 0x0, 0x333300e4); /* Select MIC or Line in */
 385         //snd_emu10k1_ptr20_write(emu, EXTENDED_INT_MASK, 0, snd_emu10k1_ptr20_read(emu, EXTENDED_INT_MASK, 0) | (0x110000<<channel));
 386
 387         return 0;
 388 }
 389
 390 static void snd_p16v_intr_enable(struct snd_emu10k1 *emu, unsigned int intrenb)
 391 {
 392         unsigned long flags;
 393         unsigned int enable;
 394
 395         spin_lock_irqsave(&emu->emu_lock, flags);
 396         enable = inl(emu->port + INTE2) | intrenb;
 397         outl(enable, emu->port + INTE2);
 398         spin_unlock_irqrestore(&emu->emu_lock, flags);
 399 }
 400
 401 static void snd_p16v_intr_disable(struct snd_emu10k1 *emu, unsigned int intrenb)
 402 {
 403         unsigned long flags;
 404         unsigned int disable;
 405
 406         spin_lock_irqsave(&emu->emu_lock, flags);
 407         disable = inl(emu->port + INTE2) & (~intrenb);
 408         outl(disable, emu->port + INTE2);
 409         spin_unlock_irqrestore(&emu->emu_lock, flags);
 410 }
 411
 412 /* trigger_playback callback */
 413 static int snd_p16v_pcm_trigger_playback(struct snd_pcm_substream *substream,
 414                                     int cmd)
 415 {
 416         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 417         struct snd_pcm_runtime *runtime;
 418         struct snd_emu10k1_pcm *epcm;
 419         int channel;
 420         int result = 0;
 421         struct snd_pcm_substream *s;
 422         u32 basic = 0;
 423         u32 inte = 0;
 424         int running = 0;
 425
 426         switch (cmd) {
 427         case SNDRV_PCM_TRIGGER_START:
 428                 running=1;
 429                 break;
 430         case SNDRV_PCM_TRIGGER_STOP:
 431         default:
 432                 running = 0;
 433                 break;
 434         }
 435         snd_pcm_group_for_each_entry(s, substream) {
 436                 if (snd_pcm_substream_chip(s) != emu ||
 437                     s->stream != SNDRV_PCM_STREAM_PLAYBACK)
 438                         continue;
 439                 runtime = s->runtime;
 440                 epcm = runtime->private_data;
 441                 channel = substream->pcm->device-emu->p16v_device_offset;
 442                 /* dev_dbg(emu->card->dev, "p16v channel=%d\n", channel); */
 443                 epcm->running = running;
 444                 basic |= (0x1<<channel);
 445                 inte |= (INTE2_PLAYBACK_CH_0_LOOP<<channel);
 446                 snd_pcm_trigger_done(s, substream);
 447         }
 448         /* dev_dbg(emu->card->dev, "basic=0x%x, inte=0x%x\n", basic, inte); */
 449
 450         switch (cmd) {
 451         case SNDRV_PCM_TRIGGER_START:
 452                 snd_p16v_intr_enable(emu, inte);
 453                 snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0)| (basic));
 454                 break;
 455         case SNDRV_PCM_TRIGGER_STOP:
 456                 snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0) & ~(basic));
 457                 snd_p16v_intr_disable(emu, inte);
 458                 break;
 459         default:
 460                 result = -EINVAL;
 461                 break;
 462         }
 463         return result;
 464 }
 465
 466 /* trigger_capture callback */
 467 static int snd_p16v_pcm_trigger_capture(struct snd_pcm_substream *substream,
 468                                    int cmd)
 469 {
 470         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 471         struct snd_pcm_runtime *runtime = substream->runtime;
 472         struct snd_emu10k1_pcm *epcm = runtime->private_data;
 473         int channel = 0;
 474         int result = 0;
 475         u32 inte = INTE2_CAPTURE_CH_0_LOOP | INTE2_CAPTURE_CH_0_HALF_LOOP;
 476
 477         switch (cmd) {
 478         case SNDRV_PCM_TRIGGER_START:
 479                 snd_p16v_intr_enable(emu, inte);
 480                 snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0)|(0x100<<channel));
 481                 epcm->running = 1;
 482                 break;
 483         case SNDRV_PCM_TRIGGER_STOP:
 484                 snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0) & ~(0x100<<channel));
 485                 snd_p16v_intr_disable(emu, inte);
 486                 //snd_emu10k1_ptr20_write(emu, EXTENDED_INT_MASK, 0, snd_emu10k1_ptr20_read(emu, EXTENDED_INT_MASK, 0) & ~(0x110000<<channel));
 487                 epcm->running = 0;
 488                 break;
 489         default:
 490                 result = -EINVAL;
 491                 break;
 492         }
 493         return result;
 494 }
 495
 496 /* pointer_playback callback */
 497 static snd_pcm_uframes_t
 498 snd_p16v_pcm_pointer_playback(struct snd_pcm_substream *substream)
 499 {
 500         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 501         struct snd_pcm_runtime *runtime = substream->runtime;
 502         struct snd_emu10k1_pcm *epcm = runtime->private_data;
 503         snd_pcm_uframes_t ptr, ptr1, ptr2,ptr3,ptr4 = 0;
 504         int channel = substream->pcm->device - emu->p16v_device_offset;
 505         if (!epcm->running)
 506                 return 0;
 507
 508         ptr3 = snd_emu10k1_ptr20_read(emu, PLAYBACK_LIST_PTR, channel);
 509         ptr1 = snd_emu10k1_ptr20_read(emu, PLAYBACK_POINTER, channel);
 510         ptr4 = snd_emu10k1_ptr20_read(emu, PLAYBACK_LIST_PTR, channel);
 511         if (ptr3 != ptr4) ptr1 = snd_emu10k1_ptr20_read(emu, PLAYBACK_POINTER, channel);
 512         ptr2 = bytes_to_frames(runtime, ptr1);
 513         ptr2+= (ptr4 >> 3) * runtime->period_size;
 514         ptr=ptr2;
 515         if (ptr >= runtime->buffer_size)
 516                 ptr -= runtime->buffer_size;
 517
 518         return ptr;
 519 }
 520
 521 /* pointer_capture callback */
 522 static snd_pcm_uframes_t
 523 snd_p16v_pcm_pointer_capture(struct snd_pcm_substream *substream)
 524 {
 525         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 526         struct snd_pcm_runtime *runtime = substream->runtime;
 527         struct snd_emu10k1_pcm *epcm = runtime->private_data;
 528         snd_pcm_uframes_t ptr, ptr1, ptr2 = 0;
 529         int channel = 0;
 530
 531         if (!epcm->running)
 532                 return 0;
 533
 534         ptr1 = snd_emu10k1_ptr20_read(emu, CAPTURE_POINTER, channel);
 535         ptr2 = bytes_to_frames(runtime, ptr1);
 536         ptr=ptr2;
 537         if (ptr >= runtime->buffer_size) {
 538                 ptr -= runtime->buffer_size;
 539                 dev_warn(emu->card->dev, "buffer capture limited!\n");
 540         }
 541         /*
 542         dev_dbg(emu->card->dev, "ptr1 = 0x%lx, ptr2=0x%lx, ptr=0x%lx, "
 543                "buffer_size = 0x%x, period_size = 0x%x, bits=%d, rate=%d\n",
 544                ptr1, ptr2, ptr, (int)runtime->buffer_size,
 545                (int)runtime->period_size, (int)runtime->frame_bits,
 546                (int)runtime->rate);
 547         */
 548         return ptr;
 549 }
 550
 551 /* operators */
 552 static const struct snd_pcm_ops snd_p16v_playback_front_ops = {
 553         .open =        snd_p16v_pcm_open_playback_front,
 554         .close =       snd_p16v_pcm_close_playback,
 555         .prepare =     snd_p16v_pcm_prepare_playback,
 556         .trigger =     snd_p16v_pcm_trigger_playback,
 557         .pointer =     snd_p16v_pcm_pointer_playback,
 558 };
 559
 560 static const struct snd_pcm_ops snd_p16v_capture_ops = {
 561         .open =        snd_p16v_pcm_open_capture,
 562         .close =       snd_p16v_pcm_close_capture,
 563         .prepare =     snd_p16v_pcm_prepare_capture,
 564         .trigger =     snd_p16v_pcm_trigger_capture,
 565         .pointer =     snd_p16v_pcm_pointer_capture,
 566 };
 567
 568
 569 int snd_p16v_free(struct snd_emu10k1 *chip)
 570 {
 571         // release the data
 572         if (chip->p16v_buffer.area) {
 573                 snd_dma_free_pages(&chip->p16v_buffer);
 574                 /*
 575                 dev_dbg(chip->card->dev, "period lables free: %p\n",
 576                            &chip->p16v_buffer);
 577                 */
 578         }
 579         return 0;
 580 }
 581
 582 int snd_p16v_pcm(struct snd_emu10k1 *emu, int device)
 583 {
 584         struct snd_pcm *pcm;
 585         struct snd_pcm_substream *substream;
 586         int err;
 587         int capture=1;
 588
 589         /* dev_dbg(emu->card->dev, "snd_p16v_pcm called. device=%d\n", device); */
 590         emu->p16v_device_offset = device;
 591
 592         if ((err = snd_pcm_new(emu->card, "p16v", device, 1, capture, &pcm)) < 0)
 593                 return err;
 594
 595         pcm->private_data = emu;
 596         // Single playback 8 channel device.
 597         // Single capture 2 channel device.
 598         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_p16v_playback_front_ops);
 599         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_p16v_capture_ops);
 600
 601         pcm->info_flags = 0;
 602         pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
 603         strcpy(pcm->name, "p16v");
 604         emu->pcm_p16v = pcm;
 605
 606         for(substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
 607             substream;
 608             substream = substream->next) {
 609                 snd_pcm_set_managed_buffer(substream, SNDRV_DMA_TYPE_DEV,
 610                                            &emu->pci->dev,
 611                                            (65536 - 64) * 8,
 612                                            (65536 - 64) * 8);
 613                 /*
 614                 dev_dbg(emu->card->dev,
 615                            "preallocate playback substream: err=%d\n", err);
 616                 */
 617         }
 618
 619         for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream;
 620               substream;
 621               substream = substream->next) {
 622                 snd_pcm_set_managed_buffer(substream, SNDRV_DMA_TYPE_DEV,
 623                                            &emu->pci->dev,
 624                                            65536 - 64, 65536 - 64);
 625                 /*
 626                 dev_dbg(emu->card->dev,
 627                            "preallocate capture substream: err=%d\n", err);
 628                 */
 629         }
 630
 631         return 0;
 632 }
 633
 634 static int snd_p16v_volume_info(struct snd_kcontrol *kcontrol,
 635                                 struct snd_ctl_elem_info *uinfo)
 636 {
 637         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 638         uinfo->count = 2;
 639         uinfo->value.integer.min = 0;
 640         uinfo->value.integer.max = 255;
 641         return 0;
 642 }
 643
 644 static int snd_p16v_volume_get(struct snd_kcontrol *kcontrol,
 645                                struct snd_ctl_elem_value *ucontrol)
 646 {
 647         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
 648         int high_low = (kcontrol->private_value >> 8) & 0xff;
 649         int reg = kcontrol->private_value & 0xff;
 650         u32 value;
 651
 652         value = snd_emu10k1_ptr20_read(emu, reg, high_low);
 653         if (high_low) {
 654                 ucontrol->value.integer.value[0] = 0xff - ((value >> 24) & 0xff); /* Left */
 655                 ucontrol->value.integer.value[1] = 0xff - ((value >> 16) & 0xff); /* Right */
 656         } else {
 657                 ucontrol->value.integer.value[0] = 0xff - ((value >> 8) & 0xff); /* Left */
 658                 ucontrol->value.integer.value[1] = 0xff - ((value >> 0) & 0xff); /* Right */
 659         }
 660         return 0;
 661 }
 662
 663 static int snd_p16v_volume_put(struct snd_kcontrol *kcontrol,
 664                                struct snd_ctl_elem_value *ucontrol)
 665 {
 666         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
 667         int high_low = (kcontrol->private_value >> 8) & 0xff;
 668         int reg = kcontrol->private_value & 0xff;
 669         u32 value, oval;
 670
 671         oval = value = snd_emu10k1_ptr20_read(emu, reg, 0);
 672         if (high_low == 1) {
 673                 value &= 0xffff;
 674                 value |= ((0xff - ucontrol->value.integer.value[0]) << 24) |
 675                         ((0xff - ucontrol->value.integer.value[1]) << 16);
 676         } else {
 677                 value &= 0xffff0000;
 678                 value |= ((0xff - ucontrol->value.integer.value[0]) << 8) |
 679                         ((0xff - ucontrol->value.integer.value[1]) );
 680         }
 681         if (value != oval) {
 682                 snd_emu10k1_ptr20_write(emu, reg, 0, value);
 683                 return 1;
 684         }
 685         return 0;
 686 }
 687
 688 static int snd_p16v_capture_source_info(struct snd_kcontrol *kcontrol,
 689                                         struct snd_ctl_elem_info *uinfo)
 690 {
 691         static const char * const texts[8] = {
 692                 "SPDIF", "I2S", "SRC48", "SRCMulti_SPDIF", "SRCMulti_I2S",
 693                 "CDIF", "FX", "AC97"
 694         };
 695
 696         return snd_ctl_enum_info(uinfo, 1, 8, texts);
 697 }
 698
 699 static int snd_p16v_capture_source_get(struct snd_kcontrol *kcontrol,
 700                                         struct snd_ctl_elem_value *ucontrol)
 701 {
 702         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
 703
 704         ucontrol->value.enumerated.item[0] = emu->p16v_capture_source;
 705         return 0;
 706 }
 707
 708 static int snd_p16v_capture_source_put(struct snd_kcontrol *kcontrol,
 709                                         struct snd_ctl_elem_value *ucontrol)
 710 {
 711         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
 712         unsigned int val;
 713         int change = 0;
 714         u32 mask;
 715         u32 source;
 716
 717         val = ucontrol->value.enumerated.item[0] ;
 718         if (val > 7)
 719                 return -EINVAL;
 720         change = (emu->p16v_capture_source != val);
 721         if (change) {
 722                 emu->p16v_capture_source = val;
 723                 source = (val << 28) | (val << 24) | (val << 20) | (val << 16);
 724                 mask = snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0) & 0xffff;
 725                 snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, source | mask);
 726         }
 727         return change;
 728 }
 729
 730 static int snd_p16v_capture_channel_info(struct snd_kcontrol *kcontrol,
 731                                          struct snd_ctl_elem_info *uinfo)
 732 {
 733         static const char * const texts[4] = { "0", "1", "2", "3", };
 734
 735         return snd_ctl_enum_info(uinfo, 1, 4, texts);
 736 }
 737
 738 static int snd_p16v_capture_channel_get(struct snd_kcontrol *kcontrol,
 739                                         struct snd_ctl_elem_value *ucontrol)
 740 {
 741         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
 742
 743         ucontrol->value.enumerated.item[0] = emu->p16v_capture_channel;
 744         return 0;
 745 }
 746
 747 static int snd_p16v_capture_channel_put(struct snd_kcontrol *kcontrol,
 748                                         struct snd_ctl_elem_value *ucontrol)
 749 {
 750         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
 751         unsigned int val;
 752         int change = 0;
 753         u32 tmp;
 754
 755         val = ucontrol->value.enumerated.item[0] ;
 756         if (val > 3)
 757                 return -EINVAL;
 758         change = (emu->p16v_capture_channel != val);
 759         if (change) {
 760                 emu->p16v_capture_channel = val;
 761                 tmp = snd_emu10k1_ptr20_read(emu, CAPTURE_P16V_SOURCE, 0) & 0xfffc;
 762                 snd_emu10k1_ptr20_write(emu, CAPTURE_P16V_SOURCE, 0, tmp | val);
 763         }
 764         return change;
 765 }
 766 static const DECLARE_TLV_DB_SCALE(snd_p16v_db_scale1, -5175, 25, 1);
 767
 768 #define P16V_VOL(xname,xreg,xhl) { \
 769         .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 770         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |             \
 771                   SNDRV_CTL_ELEM_ACCESS_TLV_READ,               \
 772         .info = snd_p16v_volume_info, \
 773         .get = snd_p16v_volume_get, \
 774         .put = snd_p16v_volume_put, \
 775         .tlv = { .p = snd_p16v_db_scale1 },     \
 776         .private_value = ((xreg) | ((xhl) << 8)) \
 777 }
 778
 779 static const struct snd_kcontrol_new p16v_mixer_controls[] = {
 780         P16V_VOL("HD Analog Front Playback Volume", PLAYBACK_VOLUME_MIXER9, 0),
 781         P16V_VOL("HD Analog Rear Playback Volume", PLAYBACK_VOLUME_MIXER10, 1),
 782         P16V_VOL("HD Analog Center/LFE Playback Volume", PLAYBACK_VOLUME_MIXER9, 1),
 783         P16V_VOL("HD Analog Side Playback Volume", PLAYBACK_VOLUME_MIXER10, 0),
 784         P16V_VOL("HD SPDIF Front Playback Volume", PLAYBACK_VOLUME_MIXER7, 0),
 785         P16V_VOL("HD SPDIF Rear Playback Volume", PLAYBACK_VOLUME_MIXER8, 1),
 786         P16V_VOL("HD SPDIF Center/LFE Playback Volume", PLAYBACK_VOLUME_MIXER7, 1),
 787         P16V_VOL("HD SPDIF Side Playback Volume", PLAYBACK_VOLUME_MIXER8, 0),
 788         {
 789                 .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
 790                 .name =         "HD source Capture",
 791                 .info =         snd_p16v_capture_source_info,
 792                 .get =          snd_p16v_capture_source_get,
 793                 .put =          snd_p16v_capture_source_put
 794         },
 795         {
 796                 .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
 797                 .name =         "HD channel Capture",
 798                 .info =         snd_p16v_capture_channel_info,
 799                 .get =          snd_p16v_capture_channel_get,
 800                 .put =          snd_p16v_capture_channel_put
 801         },
 802 };
 803
 804
 805 int snd_p16v_mixer(struct snd_emu10k1 *emu)
 806 {
 807         int i, err;
 808         struct snd_card *card = emu->card;
 809
 810         for (i = 0; i < ARRAY_SIZE(p16v_mixer_controls); i++) {
 811                 if ((err = snd_ctl_add(card, snd_ctl_new1(&p16v_mixer_controls[i],
 812                                                           emu))) < 0)
 813                         return err;
 814         }
 815         return 0;
 816 }
 817
 818 #ifdef CONFIG_PM_SLEEP
 819
 820 #define NUM_CHS 1       /* up to 4, but only first channel is used */
 821
 822 int snd_p16v_alloc_pm_buffer(struct snd_emu10k1 *emu)
 823 {
 824         emu->p16v_saved = vmalloc(array_size(NUM_CHS * 4, 0x80));
 825         if (! emu->p16v_saved)
 826                 return -ENOMEM;
 827         return 0;
 828 }
 829
 830 void snd_p16v_free_pm_buffer(struct snd_emu10k1 *emu)
 831 {
 832         vfree(emu->p16v_saved);
 833 }
 834
 835 void snd_p16v_suspend(struct snd_emu10k1 *emu)
 836 {
 837         int i, ch;
 838         unsigned int *val;
 839
 840         val = emu->p16v_saved;
 841         for (ch = 0; ch < NUM_CHS; ch++)
 842                 for (i = 0; i < 0x80; i++, val++)
 843                         *val = snd_emu10k1_ptr20_read(emu, i, ch);
 844 }
 845
 846 void snd_p16v_resume(struct snd_emu10k1 *emu)
 847 {
 848         int i, ch;
 849         unsigned int *val;
 850
 851         val = emu->p16v_saved;
 852         for (ch = 0; ch < NUM_CHS; ch++)
 853                 for (i = 0; i < 0x80; i++, val++)
 854                         snd_emu10k1_ptr20_write(emu, i, ch, *val);
 855 }
 856 #endif