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 /* open_playback callback */
 153 static int snd_p16v_pcm_open_playback_channel(struct snd_pcm_substream *substream, int channel_id)
 154 {
 155         struct snd_pcm_runtime *runtime = substream->runtime;
 156         int err;
 157
 158         /*
 159         dev_dbg(emu->card->dev, "epcm device=%d, channel_id=%d\n",
 160                    substream->pcm->device, channel_id);
 161         */
 162
 163         runtime->hw = snd_p16v_playback_hw;
 164
 165 #if 0 /* debug */
 166         dev_dbg(emu->card->dev,
 167                    "p16v: open channel_id=%d, channel=%p, use=0x%x\n",
 168                    channel_id, channel, channel->use);
 169         dev_dbg(emu->card->dev, "open:channel_id=%d, chip=%p, channel=%p\n",
 170                channel_id, chip, channel);
 171 #endif /* debug */
 172         /* channel->interrupt = snd_p16v_pcm_channel_interrupt; */
 173         err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
 174         if (err < 0)
 175                 return err;
 176
 177         runtime->sync.id32[0] = substream->pcm->card->number;
 178         runtime->sync.id32[1] = 'P';
 179         runtime->sync.id32[2] = 16;
 180         runtime->sync.id32[3] = 'V';
 181
 182         return 0;
 183 }
 184
 185 /* open_capture callback */
 186 static int snd_p16v_pcm_open_capture_channel(struct snd_pcm_substream *substream, int channel_id)
 187 {
 188         struct snd_pcm_runtime *runtime = substream->runtime;
 189         int err;
 190
 191         /*
 192         dev_dbg(emu->card->dev, "epcm device=%d, channel_id=%d\n",
 193                    substream->pcm->device, channel_id);
 194         */
 195
 196         runtime->hw = snd_p16v_capture_hw;
 197
 198         err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
 199         if (err < 0)
 200                 return err;
 201
 202         return 0;
 203 }
 204
 205
 206 /* close callback */
 207 static int snd_p16v_pcm_close_playback(struct snd_pcm_substream *substream)
 208 {
 209         return 0;
 210 }
 211
 212 /* close callback */
 213 static int snd_p16v_pcm_close_capture(struct snd_pcm_substream *substream)
 214 {
 215         return 0;
 216 }
 217
 218 static int snd_p16v_pcm_open_playback_front(struct snd_pcm_substream *substream)
 219 {
 220         return snd_p16v_pcm_open_playback_channel(substream, PCM_FRONT_CHANNEL);
 221 }
 222
 223 static int snd_p16v_pcm_open_capture(struct snd_pcm_substream *substream)
 224 {
 225         // Only using channel 0 for now, but the card has 2 channels.
 226         return snd_p16v_pcm_open_capture_channel(substream, 0);
 227 }
 228
 229 /* prepare playback callback */
 230 static int snd_p16v_pcm_prepare_playback(struct snd_pcm_substream *substream)
 231 {
 232         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 233         struct snd_pcm_runtime *runtime = substream->runtime;
 234         int channel = substream->pcm->device - emu->p16v_device_offset;
 235         u32 *table_base = (u32 *)(emu->p16v_buffer->area+(8*16*channel));
 236         u32 period_size_bytes = frames_to_bytes(runtime, runtime->period_size);
 237         int i;
 238         u32 tmp;
 239
 240 #if 0 /* debug */
 241         dev_dbg(emu->card->dev,
 242                 "prepare:channel_number=%d, rate=%d, "
 243                    "format=0x%x, channels=%d, buffer_size=%ld, "
 244                    "period_size=%ld, periods=%u, frames_to_bytes=%d\n",
 245                    channel, runtime->rate, runtime->format, runtime->channels,
 246                    runtime->buffer_size, runtime->period_size,
 247                    runtime->periods, frames_to_bytes(runtime, 1));
 248         dev_dbg(emu->card->dev,
 249                 "dma_addr=%x, dma_area=%p, table_base=%p\n",
 250                    runtime->dma_addr, runtime->dma_area, table_base);
 251         dev_dbg(emu->card->dev,
 252                 "dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",
 253                    emu->p16v_buffer->addr, emu->p16v_buffer->area,
 254                    emu->p16v_buffer->bytes);
 255 #endif /* debug */
 256         tmp = snd_emu10k1_ptr_read(emu, A_SPDIF_SAMPLERATE, channel);
 257         tmp &= ~(A_SPDIF_RATE_MASK | A_EHC_SRC48_MASK);
 258         switch (runtime->rate) {
 259         case 44100:
 260           snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel,
 261                                 tmp | A_SPDIF_44100 | A_EHC_SRC48_44);
 262           break;
 263         case 96000:
 264           snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel,
 265                                 tmp | A_SPDIF_96000 | A_EHC_SRC48_96);
 266           break;
 267         case 192000:
 268           snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel,
 269                                 tmp | A_SPDIF_192000 | A_EHC_SRC48_192);
 270           break;
 271         case 48000:
 272         default:
 273           snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel,
 274                                 tmp | A_SPDIF_48000 | A_EHC_SRC48_BYPASS);
 275           break;
 276         }
 277         /* FIXME: Check emu->buffer.size before actually writing to it. */
 278         for(i = 0; i < runtime->periods; i++) {
 279                 table_base[i*2]=runtime->dma_addr+(i*period_size_bytes);
 280                 table_base[(i*2)+1]=period_size_bytes<<16;
 281         }
 282
 283         snd_emu10k1_ptr20_write(emu, PLAYBACK_LIST_ADDR, channel, emu->p16v_buffer->addr+(8*16*channel));
 284         snd_emu10k1_ptr20_write(emu, PLAYBACK_LIST_SIZE, channel, (runtime->periods - 1) << 19);
 285         snd_emu10k1_ptr20_write(emu, PLAYBACK_LIST_PTR, channel, 0);
 286         snd_emu10k1_ptr20_write(emu, PLAYBACK_DMA_ADDR, channel, runtime->dma_addr);
 287         //snd_emu10k1_ptr20_write(emu, PLAYBACK_PERIOD_SIZE, channel, frames_to_bytes(runtime, runtime->period_size)<<16); // buffer size in bytes
 288         snd_emu10k1_ptr20_write(emu, PLAYBACK_PERIOD_SIZE, channel, 0); // buffer size in bytes
 289         snd_emu10k1_ptr20_write(emu, PLAYBACK_POINTER, channel, 0);
 290         snd_emu10k1_ptr20_write(emu, PLAYBACK_FIFO_END_ADDRESS, channel, 0);
 291         snd_emu10k1_ptr20_write(emu, PLAYBACK_FIFO_POINTER, channel, 0);
 292
 293         return 0;
 294 }
 295
 296 /* prepare capture callback */
 297 static int snd_p16v_pcm_prepare_capture(struct snd_pcm_substream *substream)
 298 {
 299         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 300         struct snd_pcm_runtime *runtime = substream->runtime;
 301         int channel = substream->pcm->device - emu->p16v_device_offset;
 302
 303         /*
 304         dev_dbg(emu->card->dev, "prepare capture:channel_number=%d, rate=%d, "
 305                "format=0x%x, channels=%d, buffer_size=%ld, period_size=%ld, "
 306                "frames_to_bytes=%d\n",
 307                channel, runtime->rate, runtime->format, runtime->channels,
 308                runtime->buffer_size, runtime->period_size,
 309                frames_to_bytes(runtime, 1));
 310         */
 311         switch (runtime->rate) {
 312         case 44100:
 313           snd_emu10k1_ptr_write(emu, A_I2S_CAPTURE_RATE, channel, A_I2S_CAPTURE_44100);
 314           break;
 315         case 96000:
 316           snd_emu10k1_ptr_write(emu, A_I2S_CAPTURE_RATE, channel, A_I2S_CAPTURE_96000);
 317           break;
 318         case 192000:
 319           snd_emu10k1_ptr_write(emu, A_I2S_CAPTURE_RATE, channel, A_I2S_CAPTURE_192000);
 320           break;
 321         case 48000:
 322         default:
 323           snd_emu10k1_ptr_write(emu, A_I2S_CAPTURE_RATE, channel, A_I2S_CAPTURE_48000);
 324           break;
 325         }
 326         /* FIXME: Check emu->buffer.size before actually writing to it. */
 327         snd_emu10k1_ptr20_write(emu, CAPTURE_FIFO_POINTER, channel, 0);
 328         snd_emu10k1_ptr20_write(emu, CAPTURE_DMA_ADDR, channel, runtime->dma_addr);
 329         snd_emu10k1_ptr20_write(emu, CAPTURE_BUFFER_SIZE, channel, frames_to_bytes(runtime, runtime->buffer_size) << 16); // buffer size in bytes
 330         snd_emu10k1_ptr20_write(emu, CAPTURE_POINTER, channel, 0);
 331         //snd_emu10k1_ptr20_write(emu, CAPTURE_SOURCE, 0x0, 0x333300e4); /* Select MIC or Line in */
 332         //snd_emu10k1_ptr20_write(emu, EXTENDED_INT_MASK, 0, snd_emu10k1_ptr20_read(emu, EXTENDED_INT_MASK, 0) | (0x110000<<channel));
 333
 334         return 0;
 335 }
 336
 337 static void snd_p16v_intr_enable(struct snd_emu10k1 *emu, unsigned int intrenb)
 338 {
 339         unsigned long flags;
 340         unsigned int enable;
 341
 342         spin_lock_irqsave(&emu->emu_lock, flags);
 343         enable = inl(emu->port + INTE2) | intrenb;
 344         outl(enable, emu->port + INTE2);
 345         spin_unlock_irqrestore(&emu->emu_lock, flags);
 346 }
 347
 348 static void snd_p16v_intr_disable(struct snd_emu10k1 *emu, unsigned int intrenb)
 349 {
 350         unsigned long flags;
 351         unsigned int disable;
 352
 353         spin_lock_irqsave(&emu->emu_lock, flags);
 354         disable = inl(emu->port + INTE2) & (~intrenb);
 355         outl(disable, emu->port + INTE2);
 356         spin_unlock_irqrestore(&emu->emu_lock, flags);
 357 }
 358
 359 static void snd_p16v_interrupt(struct snd_emu10k1 *emu)
 360 {
 361         unsigned int status;
 362
 363         while ((status = inl(emu->port + IPR2)) != 0) {
 364                 u32 mask = INTE2_PLAYBACK_CH_0_LOOP;  /* Full Loop */
 365
 366                 /* dev_dbg(emu->card->dev, "p16v status=0x%x\n", status); */
 367                 if (status & mask) {
 368                         struct snd_pcm_substream *substream =
 369                                         emu->pcm_p16v->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
 370                         struct snd_pcm_runtime *runtime = substream->runtime;
 371
 372                         if (runtime && runtime->private_data) {
 373                                 snd_pcm_period_elapsed(substream);
 374                         } else {
 375                                 dev_err(emu->card->dev,
 376                                         "p16v: status: 0x%08x, mask=0x%08x\n",
 377                                         status, mask);
 378                         }
 379                 }
 380                 if (status & 0x110000) {
 381                         struct snd_pcm_substream *substream =
 382                                         emu->pcm_p16v->streams[SNDRV_PCM_STREAM_CAPTURE].substream;
 383                         struct snd_pcm_runtime *runtime = substream->runtime;
 384
 385                         /* dev_info(emu->card->dev, "capture int found\n"); */
 386                         if (runtime && runtime->private_data) {
 387                                 /* dev_info(emu->card->dev, "capture period_elapsed\n"); */
 388                                 snd_pcm_period_elapsed(substream);
 389                         }
 390                 }
 391                 outl(status, emu->port + IPR2); /* ack all */
 392         }
 393 }
 394
 395 /* trigger_playback callback */
 396 static int snd_p16v_pcm_trigger_playback(struct snd_pcm_substream *substream,
 397                                     int cmd)
 398 {
 399         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 400         struct snd_pcm_runtime *runtime;
 401         int channel;
 402         int result = 0;
 403         struct snd_pcm_substream *s;
 404         u32 basic = 0;
 405         u32 inte = 0;
 406         int running = 0;
 407
 408         switch (cmd) {
 409         case SNDRV_PCM_TRIGGER_START:
 410                 running=1;
 411                 break;
 412         case SNDRV_PCM_TRIGGER_STOP:
 413         default:
 414                 running = 0;
 415                 break;
 416         }
 417         snd_pcm_group_for_each_entry(s, substream) {
 418                 if (snd_pcm_substream_chip(s) != emu ||
 419                     s->stream != SNDRV_PCM_STREAM_PLAYBACK)
 420                         continue;
 421                 runtime = s->runtime;
 422                 channel = substream->pcm->device-emu->p16v_device_offset;
 423                 /* dev_dbg(emu->card->dev, "p16v channel=%d\n", channel); */
 424                 runtime->private_data = (void *)(ptrdiff_t)running;
 425                 basic |= (0x1<<channel);
 426                 inte |= (INTE2_PLAYBACK_CH_0_LOOP<<channel);
 427                 snd_pcm_trigger_done(s, substream);
 428         }
 429         /* dev_dbg(emu->card->dev, "basic=0x%x, inte=0x%x\n", basic, inte); */
 430
 431         switch (cmd) {
 432         case SNDRV_PCM_TRIGGER_START:
 433                 snd_p16v_intr_enable(emu, inte);
 434                 snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0)| (basic));
 435                 break;
 436         case SNDRV_PCM_TRIGGER_STOP:
 437                 snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0) & ~(basic));
 438                 snd_p16v_intr_disable(emu, inte);
 439                 break;
 440         default:
 441                 result = -EINVAL;
 442                 break;
 443         }
 444         return result;
 445 }
 446
 447 /* trigger_capture callback */
 448 static int snd_p16v_pcm_trigger_capture(struct snd_pcm_substream *substream,
 449                                    int cmd)
 450 {
 451         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 452         struct snd_pcm_runtime *runtime = substream->runtime;
 453         int channel = 0;
 454         int result = 0;
 455         u32 inte = INTE2_CAPTURE_CH_0_LOOP | INTE2_CAPTURE_CH_0_HALF_LOOP;
 456
 457         switch (cmd) {
 458         case SNDRV_PCM_TRIGGER_START:
 459                 snd_p16v_intr_enable(emu, inte);
 460                 snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0)|(0x100<<channel));
 461                 runtime->private_data = (void *)1;
 462                 break;
 463         case SNDRV_PCM_TRIGGER_STOP:
 464                 snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0) & ~(0x100<<channel));
 465                 snd_p16v_intr_disable(emu, inte);
 466                 //snd_emu10k1_ptr20_write(emu, EXTENDED_INT_MASK, 0, snd_emu10k1_ptr20_read(emu, EXTENDED_INT_MASK, 0) & ~(0x110000<<channel));
 467                 runtime->private_data = NULL;
 468                 break;
 469         default:
 470                 result = -EINVAL;
 471                 break;
 472         }
 473         return result;
 474 }
 475
 476 /* pointer_playback callback */
 477 static snd_pcm_uframes_t
 478 snd_p16v_pcm_pointer_playback(struct snd_pcm_substream *substream)
 479 {
 480         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 481         struct snd_pcm_runtime *runtime = substream->runtime;
 482         snd_pcm_uframes_t ptr, ptr1, ptr2,ptr3,ptr4 = 0;
 483         int channel = substream->pcm->device - emu->p16v_device_offset;
 484
 485         if (!runtime->private_data)
 486                 return 0;
 487
 488         ptr3 = snd_emu10k1_ptr20_read(emu, PLAYBACK_LIST_PTR, channel);
 489         ptr1 = snd_emu10k1_ptr20_read(emu, PLAYBACK_POINTER, channel);
 490         ptr4 = snd_emu10k1_ptr20_read(emu, PLAYBACK_LIST_PTR, channel);
 491         if (ptr3 != ptr4) ptr1 = snd_emu10k1_ptr20_read(emu, PLAYBACK_POINTER, channel);
 492         ptr2 = bytes_to_frames(runtime, ptr1);
 493         ptr2+= (ptr4 >> 3) * runtime->period_size;
 494         ptr=ptr2;
 495         if (ptr >= runtime->buffer_size)
 496                 ptr -= runtime->buffer_size;
 497
 498         return ptr;
 499 }
 500
 501 /* pointer_capture callback */
 502 static snd_pcm_uframes_t
 503 snd_p16v_pcm_pointer_capture(struct snd_pcm_substream *substream)
 504 {
 505         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 506         struct snd_pcm_runtime *runtime = substream->runtime;
 507         snd_pcm_uframes_t ptr, ptr1, ptr2 = 0;
 508         int channel = 0;
 509
 510         if (!runtime->private_data)
 511                 return 0;
 512
 513         ptr1 = snd_emu10k1_ptr20_read(emu, CAPTURE_POINTER, channel);
 514         ptr2 = bytes_to_frames(runtime, ptr1);
 515         ptr=ptr2;
 516         if (ptr >= runtime->buffer_size) {
 517                 ptr -= runtime->buffer_size;
 518                 dev_warn(emu->card->dev, "buffer capture limited!\n");
 519         }
 520         /*
 521         dev_dbg(emu->card->dev, "ptr1 = 0x%lx, ptr2=0x%lx, ptr=0x%lx, "
 522                "buffer_size = 0x%x, period_size = 0x%x, bits=%d, rate=%d\n",
 523                ptr1, ptr2, ptr, (int)runtime->buffer_size,
 524                (int)runtime->period_size, (int)runtime->frame_bits,
 525                (int)runtime->rate);
 526         */
 527         return ptr;
 528 }
 529
 530 /* operators */
 531 static const struct snd_pcm_ops snd_p16v_playback_front_ops = {
 532         .open =        snd_p16v_pcm_open_playback_front,
 533         .close =       snd_p16v_pcm_close_playback,
 534         .prepare =     snd_p16v_pcm_prepare_playback,
 535         .trigger =     snd_p16v_pcm_trigger_playback,
 536         .pointer =     snd_p16v_pcm_pointer_playback,
 537 };
 538
 539 static const struct snd_pcm_ops snd_p16v_capture_ops = {
 540         .open =        snd_p16v_pcm_open_capture,
 541         .close =       snd_p16v_pcm_close_capture,
 542         .prepare =     snd_p16v_pcm_prepare_capture,
 543         .trigger =     snd_p16v_pcm_trigger_capture,
 544         .pointer =     snd_p16v_pcm_pointer_capture,
 545 };
 546
 547 int snd_p16v_pcm(struct snd_emu10k1 *emu, int device)
 548 {
 549         struct snd_pcm *pcm;
 550         struct snd_pcm_substream *substream;
 551         int err;
 552         int capture=1;
 553
 554         /* dev_dbg(emu->card->dev, "snd_p16v_pcm called. device=%d\n", device); */
 555         emu->p16v_device_offset = device;
 556
 557         err = snd_pcm_new(emu->card, "p16v", device, 1, capture, &pcm);
 558         if (err < 0)
 559                 return err;
 560
 561         pcm->private_data = emu;
 562         // Single playback 8 channel device.
 563         // Single capture 2 channel device.
 564         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_p16v_playback_front_ops);
 565         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_p16v_capture_ops);
 566
 567         pcm->info_flags = 0;
 568         pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
 569         strcpy(pcm->name, "p16v");
 570         emu->pcm_p16v = pcm;
 571         emu->p16v_interrupt = snd_p16v_interrupt;
 572
 573         for(substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
 574             substream;
 575             substream = substream->next) {
 576                 snd_pcm_set_managed_buffer(substream, SNDRV_DMA_TYPE_DEV,
 577                                            &emu->pci->dev,
 578                                            (65536 - 64) * 8,
 579                                            (65536 - 64) * 8);
 580                 /*
 581                 dev_dbg(emu->card->dev,
 582                            "preallocate playback substream: err=%d\n", err);
 583                 */
 584         }
 585
 586         for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream;
 587               substream;
 588               substream = substream->next) {
 589                 snd_pcm_set_managed_buffer(substream, SNDRV_DMA_TYPE_DEV,
 590                                            &emu->pci->dev,
 591                                            65536 - 64, 65536 - 64);
 592                 /*
 593                 dev_dbg(emu->card->dev,
 594                            "preallocate capture substream: err=%d\n", err);
 595                 */
 596         }
 597
 598         return 0;
 599 }
 600
 601 static int snd_p16v_volume_info(struct snd_kcontrol *kcontrol,
 602                                 struct snd_ctl_elem_info *uinfo)
 603 {
 604         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 605         uinfo->count = 2;
 606         uinfo->value.integer.min = 0;
 607         uinfo->value.integer.max = 255;
 608         return 0;
 609 }
 610
 611 static int snd_p16v_volume_get(struct snd_kcontrol *kcontrol,
 612                                struct snd_ctl_elem_value *ucontrol)
 613 {
 614         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
 615         int high_low = (kcontrol->private_value >> 8) & 0xff;
 616         int reg = kcontrol->private_value & 0xff;
 617         u32 value;
 618
 619         value = snd_emu10k1_ptr20_read(emu, reg, high_low);
 620         if (high_low) {
 621                 ucontrol->value.integer.value[0] = 0xff - ((value >> 24) & 0xff); /* Left */
 622                 ucontrol->value.integer.value[1] = 0xff - ((value >> 16) & 0xff); /* Right */
 623         } else {
 624                 ucontrol->value.integer.value[0] = 0xff - ((value >> 8) & 0xff); /* Left */
 625                 ucontrol->value.integer.value[1] = 0xff - ((value >> 0) & 0xff); /* Right */
 626         }
 627         return 0;
 628 }
 629
 630 static int snd_p16v_volume_put(struct snd_kcontrol *kcontrol,
 631                                struct snd_ctl_elem_value *ucontrol)
 632 {
 633         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
 634         int high_low = (kcontrol->private_value >> 8) & 0xff;
 635         int reg = kcontrol->private_value & 0xff;
 636         u32 value, oval;
 637
 638         oval = value = snd_emu10k1_ptr20_read(emu, reg, 0);
 639         if (high_low == 1) {
 640                 value &= 0xffff;
 641                 value |= ((0xff - ucontrol->value.integer.value[0]) << 24) |
 642                         ((0xff - ucontrol->value.integer.value[1]) << 16);
 643         } else {
 644                 value &= 0xffff0000;
 645                 value |= ((0xff - ucontrol->value.integer.value[0]) << 8) |
 646                         ((0xff - ucontrol->value.integer.value[1]) );
 647         }
 648         if (value != oval) {
 649                 snd_emu10k1_ptr20_write(emu, reg, 0, value);
 650                 return 1;
 651         }
 652         return 0;
 653 }
 654
 655 static int snd_p16v_capture_source_info(struct snd_kcontrol *kcontrol,
 656                                         struct snd_ctl_elem_info *uinfo)
 657 {
 658         static const char * const texts[8] = {
 659                 "SPDIF", "I2S", "SRC48", "SRCMulti_SPDIF", "SRCMulti_I2S",
 660                 "CDIF", "FX", "AC97"
 661         };
 662
 663         return snd_ctl_enum_info(uinfo, 1, 8, texts);
 664 }
 665
 666 static int snd_p16v_capture_source_get(struct snd_kcontrol *kcontrol,
 667                                         struct snd_ctl_elem_value *ucontrol)
 668 {
 669         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
 670
 671         ucontrol->value.enumerated.item[0] = emu->p16v_capture_source;
 672         return 0;
 673 }
 674
 675 static int snd_p16v_capture_source_put(struct snd_kcontrol *kcontrol,
 676                                         struct snd_ctl_elem_value *ucontrol)
 677 {
 678         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
 679         unsigned int val;
 680         int change = 0;
 681         u32 mask;
 682         u32 source;
 683
 684         val = ucontrol->value.enumerated.item[0] ;
 685         if (val > 7)
 686                 return -EINVAL;
 687         change = (emu->p16v_capture_source != val);
 688         if (change) {
 689                 emu->p16v_capture_source = val;
 690                 source = (val << 28) | (val << 24) | (val << 20) | (val << 16);
 691                 mask = snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0) & 0xffff;
 692                 snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, source | mask);
 693         }
 694         return change;
 695 }
 696
 697 static int snd_p16v_capture_channel_info(struct snd_kcontrol *kcontrol,
 698                                          struct snd_ctl_elem_info *uinfo)
 699 {
 700         static const char * const texts[4] = { "0", "1", "2", "3", };
 701
 702         return snd_ctl_enum_info(uinfo, 1, 4, texts);
 703 }
 704
 705 static int snd_p16v_capture_channel_get(struct snd_kcontrol *kcontrol,
 706                                         struct snd_ctl_elem_value *ucontrol)
 707 {
 708         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
 709
 710         ucontrol->value.enumerated.item[0] = emu->p16v_capture_channel;
 711         return 0;
 712 }
 713
 714 static int snd_p16v_capture_channel_put(struct snd_kcontrol *kcontrol,
 715                                         struct snd_ctl_elem_value *ucontrol)
 716 {
 717         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
 718         unsigned int val;
 719         int change = 0;
 720         u32 tmp;
 721
 722         val = ucontrol->value.enumerated.item[0] ;
 723         if (val > 3)
 724                 return -EINVAL;
 725         change = (emu->p16v_capture_channel != val);
 726         if (change) {
 727                 emu->p16v_capture_channel = val;
 728                 tmp = snd_emu10k1_ptr20_read(emu, CAPTURE_P16V_SOURCE, 0) & 0xfffc;
 729                 snd_emu10k1_ptr20_write(emu, CAPTURE_P16V_SOURCE, 0, tmp | val);
 730         }
 731         return change;
 732 }
 733 static const DECLARE_TLV_DB_SCALE(snd_p16v_db_scale1, -5175, 25, 1);
 734
 735 #define P16V_VOL(xname,xreg,xhl) { \
 736         .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 737         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |             \
 738                   SNDRV_CTL_ELEM_ACCESS_TLV_READ,               \
 739         .info = snd_p16v_volume_info, \
 740         .get = snd_p16v_volume_get, \
 741         .put = snd_p16v_volume_put, \
 742         .tlv = { .p = snd_p16v_db_scale1 },     \
 743         .private_value = ((xreg) | ((xhl) << 8)) \
 744 }
 745
 746 static const struct snd_kcontrol_new p16v_mixer_controls[] = {
 747         P16V_VOL("HD Analog Front Playback Volume", PLAYBACK_VOLUME_MIXER9, 0),
 748         P16V_VOL("HD Analog Rear Playback Volume", PLAYBACK_VOLUME_MIXER10, 1),
 749         P16V_VOL("HD Analog Center/LFE Playback Volume", PLAYBACK_VOLUME_MIXER9, 1),
 750         P16V_VOL("HD Analog Side Playback Volume", PLAYBACK_VOLUME_MIXER10, 0),
 751         P16V_VOL("HD SPDIF Front Playback Volume", PLAYBACK_VOLUME_MIXER7, 0),
 752         P16V_VOL("HD SPDIF Rear Playback Volume", PLAYBACK_VOLUME_MIXER8, 1),
 753         P16V_VOL("HD SPDIF Center/LFE Playback Volume", PLAYBACK_VOLUME_MIXER7, 1),
 754         P16V_VOL("HD SPDIF Side Playback Volume", PLAYBACK_VOLUME_MIXER8, 0),
 755         {
 756                 .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
 757                 .name =         "HD source Capture",
 758                 .info =         snd_p16v_capture_source_info,
 759                 .get =          snd_p16v_capture_source_get,
 760                 .put =          snd_p16v_capture_source_put
 761         },
 762         {
 763                 .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
 764                 .name =         "HD channel Capture",
 765                 .info =         snd_p16v_capture_channel_info,
 766                 .get =          snd_p16v_capture_channel_get,
 767                 .put =          snd_p16v_capture_channel_put
 768         },
 769 };
 770
 771
 772 int snd_p16v_mixer(struct snd_emu10k1 *emu)
 773 {
 774         int i, err;
 775         struct snd_card *card = emu->card;
 776
 777         for (i = 0; i < ARRAY_SIZE(p16v_mixer_controls); i++) {
 778                 err = snd_ctl_add(card, snd_ctl_new1(&p16v_mixer_controls[i], emu));
 779                 if (err < 0)
 780                         return err;
 781         }
 782         return 0;
 783 }
 784
 785 #ifdef CONFIG_PM_SLEEP
 786
 787 #define NUM_CHS 1       /* up to 4, but only first channel is used */
 788
 789 int snd_p16v_alloc_pm_buffer(struct snd_emu10k1 *emu)
 790 {
 791         emu->p16v_saved = vmalloc(array_size(NUM_CHS * 4, 0x80));
 792         if (! emu->p16v_saved)
 793                 return -ENOMEM;
 794         return 0;
 795 }
 796
 797 void snd_p16v_free_pm_buffer(struct snd_emu10k1 *emu)
 798 {
 799         vfree(emu->p16v_saved);
 800 }
 801
 802 void snd_p16v_suspend(struct snd_emu10k1 *emu)
 803 {
 804         int i, ch;
 805         unsigned int *val;
 806
 807         val = emu->p16v_saved;
 808         for (ch = 0; ch < NUM_CHS; ch++)
 809                 for (i = 0; i < 0x80; i++, val++)
 810                         *val = snd_emu10k1_ptr20_read(emu, i, ch);
 811 }
 812
 813 void snd_p16v_resume(struct snd_emu10k1 *emu)
 814 {
 815         int i, ch;
 816         unsigned int *val;
 817
 818         val = emu->p16v_saved;
 819         for (ch = 0; ch < NUM_CHS; ch++)
 820                 for (i = 0; i < 0x80; i++, val++)
 821                         snd_emu10k1_ptr20_write(emu, i, ch, *val);
 822 }
 823 #endif