git.oblomov.eu Git - linux-2.6/blob - sound/pci/emu10k1/p16v.c

   1 /*
   2  *  Copyright (c) by James Courtier-Dutton <James@superbug.demon.co.uk>
   3  *  Driver p16v chips
   4  *  Version: 0.25
   5  *
   6  *  FEATURES currently supported:
   7  *    Output fixed at S32_LE, 2 channel to hw:0,0
   8  *    Rates: 44.1, 48, 96, 192.
   9  *
  10  *  Changelog:
  11  *  0.8
  12  *    Use separate card based buffer for periods table.
  13  *  0.9
  14  *    Use 2 channel output streams instead of 8 channel.
  15  *       (8 channel output streams might be good for ASIO type output)
  16  *    Corrected speaker output, so Front -> Front etc.
  17  *  0.10
  18  *    Fixed missed interrupts.
  19  *  0.11
  20  *    Add Sound card model number and names.
  21  *    Add Analog volume controls.
  22  *  0.12
  23  *    Corrected playback interrupts. Now interrupt per period, instead of half period.
  24  *  0.13
  25  *    Use single trigger for multichannel.
  26  *  0.14
  27  *    Mic capture now works at fixed: S32_LE, 96000Hz, Stereo.
  28  *  0.15
  29  *    Force buffer_size / period_size == INTEGER.
  30  *  0.16
  31  *    Update p16v.c to work with changed alsa api.
  32  *  0.17
  33  *    Update p16v.c to work with changed alsa api. Removed boot_devs.
  34  *  0.18
  35  *    Merging with snd-emu10k1 driver.
  36  *  0.19
  37  *    One stereo channel at 24bit now works.
  38  *  0.20
  39  *    Added better register defines.
  40  *  0.21
  41  *    Integrated with snd-emu10k1 driver.
  42  *  0.22
  43  *    Removed #if 0 ... #endif
  44  *  0.23
  45  *    Implement different capture rates.
  46  *  0.24
  47  *    Implement different capture source channels.
  48  *    e.g. When HD Capture source is set to SPDIF,
  49  *    setting HD Capture channel to 0 captures from CDROM digital input.
  50  *    setting HD Capture channel to 1 captures from SPDIF in.
  51  *  0.25
  52  *    Include capture buffer sizes.
  53  *
  54  *  BUGS:
  55  *    Some stability problems when unloading the snd-p16v kernel module.
  56  *    --
  57  *
  58  *  TODO:
  59  *    SPDIF out.
  60  *    Find out how to change capture sample rates. E.g. To record SPDIF at 48000Hz.
  61  *    Currently capture fixed at 48000Hz.
  62  *
  63  *    --
  64  *  GENERAL INFO:
  65  *    Model: SB0240
  66  *    P16V Chip: CA0151-DBS
  67  *    Audigy 2 Chip: CA0102-IAT
  68  *    AC97 Codec: STAC 9721
  69  *    ADC: Philips 1361T (Stereo 24bit)
  70  *    DAC: CS4382-K (8-channel, 24bit, 192Khz)
  71  *
  72  *  This code was initally based on code from ALSA's emu10k1x.c which is:
  73  *  Copyright (c) by Francisco Moraes <fmoraes@nc.rr.com>
  74  *
  75  *   This program is free software; you can redistribute it and/or modify
  76  *   it under the terms of the GNU General Public License as published by
  77  *   the Free Software Foundation; either version 2 of the License, or
  78  *   (at your option) any later version.
  79  *
  80  *   This program is distributed in the hope that it will be useful,
  81  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  82  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  83  *   GNU General Public License for more details.
  84  *
  85  *   You should have received a copy of the GNU General Public License
  86  *   along with this program; if not, write to the Free Software
  87  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  88  *
  89  */
  90 #include <linux/delay.h>
  91 #include <linux/init.h>
  92 #include <linux/interrupt.h>
  93 #include <linux/pci.h>
  94 #include <linux/slab.h>
  95 #include <linux/vmalloc.h>
  96 #include <linux/moduleparam.h>
  97 #include <sound/core.h>
  98 #include <sound/initval.h>
  99 #include <sound/pcm.h>
 100 #include <sound/ac97_codec.h>
 101 #include <sound/info.h>
 102 #include <sound/tlv.h>
 103 #include <sound/emu10k1.h>
 104 #include "p16v.h"
 105
 106 #define SET_CHANNEL 0  /* Testing channel outputs 0=Front, 1=Center/LFE, 2=Unknown, 3=Rear */
 107 #define PCM_FRONT_CHANNEL 0
 108 #define PCM_REAR_CHANNEL 1
 109 #define PCM_CENTER_LFE_CHANNEL 2
 110 #define PCM_SIDE_CHANNEL 3
 111 #define CONTROL_FRONT_CHANNEL 0
 112 #define CONTROL_REAR_CHANNEL 3
 113 #define CONTROL_CENTER_LFE_CHANNEL 1
 114 #define CONTROL_SIDE_CHANNEL 2
 115
 116 /* Card IDs:
 117  * Class 0401: 1102:0004 (rev 04) Subsystem: 1102:2002 -> Audigy2 ZS 7.1 Model:SB0350
 118  * Class 0401: 1102:0004 (rev 04) Subsystem: 1102:1007 -> Audigy2 6.1    Model:SB0240
 119  * Class 0401: 1102:0004 (rev 04) Subsystem: 1102:1002 -> Audigy2 Platinum  Model:SB msb0240230009266
 120  * Class 0401: 1102:0004 (rev 04) Subsystem: 1102:2007 -> Audigy4 Pro Model:SB0380 M1SB0380472001901E
 121  *
 122  */
 123
 124  /* hardware definition */
 125 static struct snd_pcm_hardware snd_p16v_playback_hw = {
 126         .info =                 SNDRV_PCM_INFO_MMAP |
 127                                 SNDRV_PCM_INFO_INTERLEAVED |
 128                                 SNDRV_PCM_INFO_BLOCK_TRANSFER |
 129                                 SNDRV_PCM_INFO_RESUME |
 130                                 SNDRV_PCM_INFO_MMAP_VALID |
 131                                 SNDRV_PCM_INFO_SYNC_START,
 132         .formats =              SNDRV_PCM_FMTBIT_S32_LE, /* Only supports 24-bit samples padded to 32 bits. */
 133         .rates =                SNDRV_PCM_RATE_192000 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_44100,
 134         .rate_min =             44100,
 135         .rate_max =             192000,
 136         .channels_min =         8,
 137         .channels_max =         8,
 138         .buffer_bytes_max =     ((65536 - 64) * 8),
 139         .period_bytes_min =     64,
 140         .period_bytes_max =     (65536 - 64),
 141         .periods_min =          2,
 142         .periods_max =          8,
 143         .fifo_size =            0,
 144 };
 145
 146 static struct snd_pcm_hardware snd_p16v_capture_hw = {
 147         .info =                 (SNDRV_PCM_INFO_MMAP |
 148                                  SNDRV_PCM_INFO_INTERLEAVED |
 149                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
 150                                  SNDRV_PCM_INFO_RESUME |
 151                                  SNDRV_PCM_INFO_MMAP_VALID),
 152         .formats =              SNDRV_PCM_FMTBIT_S32_LE,
 153         .rates =                SNDRV_PCM_RATE_192000 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_44100,
 154         .rate_min =             44100,
 155         .rate_max =             192000,
 156         .channels_min =         2,
 157         .channels_max =         2,
 158         .buffer_bytes_max =     (65536 - 64),
 159         .period_bytes_min =     64,
 160         .period_bytes_max =     (65536 - 128) >> 1,  /* size has to be N*64 bytes */
 161         .periods_min =          2,
 162         .periods_max =          2,
 163         .fifo_size =            0,
 164 };
 165
 166 static void snd_p16v_pcm_free_substream(struct snd_pcm_runtime *runtime)
 167 {
 168         struct snd_emu10k1_pcm *epcm = runtime->private_data;
 169
 170         if (epcm) {
 171                 //snd_printk("epcm free: %p\n", epcm);
 172                 kfree(epcm);
 173         }
 174 }
 175
 176 /* open_playback callback */
 177 static int snd_p16v_pcm_open_playback_channel(struct snd_pcm_substream *substream, int channel_id)
 178 {
 179         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 180         struct snd_emu10k1_voice *channel = &(emu->p16v_voices[channel_id]);
 181         struct snd_emu10k1_pcm *epcm;
 182         struct snd_pcm_runtime *runtime = substream->runtime;
 183         int err;
 184
 185         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
 186         //snd_printk("epcm kcalloc: %p\n", epcm);
 187
 188         if (epcm == NULL)
 189                 return -ENOMEM;
 190         epcm->emu = emu;
 191         epcm->substream = substream;
 192         //snd_printk("epcm device=%d, channel_id=%d\n", substream->pcm->device, channel_id);
 193
 194         runtime->private_data = epcm;
 195         runtime->private_free = snd_p16v_pcm_free_substream;
 196
 197         runtime->hw = snd_p16v_playback_hw;
 198
 199         channel->emu = emu;
 200         channel->number = channel_id;
 201
 202         channel->use=1;
 203         //snd_printk("p16v: open channel_id=%d, channel=%p, use=0x%x\n", channel_id, channel, channel->use);
 204         //printk("open:channel_id=%d, chip=%p, channel=%p\n",channel_id, chip, channel);
 205         //channel->interrupt = snd_p16v_pcm_channel_interrupt;
 206         channel->epcm=epcm;
 207         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 208                 return err;
 209
 210         runtime->sync.id32[0] = substream->pcm->card->number;
 211         runtime->sync.id32[1] = 'P';
 212         runtime->sync.id32[2] = 16;
 213         runtime->sync.id32[3] = 'V';
 214
 215         return 0;
 216 }
 217 /* open_capture callback */
 218 static int snd_p16v_pcm_open_capture_channel(struct snd_pcm_substream *substream, int channel_id)
 219 {
 220         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 221         struct snd_emu10k1_voice *channel = &(emu->p16v_capture_voice);
 222         struct snd_emu10k1_pcm *epcm;
 223         struct snd_pcm_runtime *runtime = substream->runtime;
 224         int err;
 225
 226         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
 227         //snd_printk("epcm kcalloc: %p\n", epcm);
 228
 229         if (epcm == NULL)
 230                 return -ENOMEM;
 231         epcm->emu = emu;
 232         epcm->substream = substream;
 233         //snd_printk("epcm device=%d, channel_id=%d\n", substream->pcm->device, channel_id);
 234
 235         runtime->private_data = epcm;
 236         runtime->private_free = snd_p16v_pcm_free_substream;
 237
 238         runtime->hw = snd_p16v_capture_hw;
 239
 240         channel->emu = emu;
 241         channel->number = channel_id;
 242
 243         channel->use=1;
 244         //snd_printk("p16v: open channel_id=%d, channel=%p, use=0x%x\n", channel_id, channel, channel->use);
 245         //printk("open:channel_id=%d, chip=%p, channel=%p\n",channel_id, chip, channel);
 246         //channel->interrupt = snd_p16v_pcm_channel_interrupt;
 247         channel->epcm=epcm;
 248         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 249                 return err;
 250
 251         return 0;
 252 }
 253
 254
 255 /* close callback */
 256 static int snd_p16v_pcm_close_playback(struct snd_pcm_substream *substream)
 257 {
 258         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 259         //struct snd_pcm_runtime *runtime = substream->runtime;
 260         //struct snd_emu10k1_pcm *epcm = runtime->private_data;
 261         emu->p16v_voices[substream->pcm->device - emu->p16v_device_offset].use = 0;
 262         /* FIXME: maybe zero others */
 263         return 0;
 264 }
 265
 266 /* close callback */
 267 static int snd_p16v_pcm_close_capture(struct snd_pcm_substream *substream)
 268 {
 269         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 270         //struct snd_pcm_runtime *runtime = substream->runtime;
 271         //struct snd_emu10k1_pcm *epcm = runtime->private_data;
 272         emu->p16v_capture_voice.use = 0;
 273         /* FIXME: maybe zero others */
 274         return 0;
 275 }
 276
 277 static int snd_p16v_pcm_open_playback_front(struct snd_pcm_substream *substream)
 278 {
 279         return snd_p16v_pcm_open_playback_channel(substream, PCM_FRONT_CHANNEL);
 280 }
 281
 282 static int snd_p16v_pcm_open_capture(struct snd_pcm_substream *substream)
 283 {
 284         // Only using channel 0 for now, but the card has 2 channels.
 285         return snd_p16v_pcm_open_capture_channel(substream, 0);
 286 }
 287
 288 /* hw_params callback */
 289 static int snd_p16v_pcm_hw_params_playback(struct snd_pcm_substream *substream,
 290                                       struct snd_pcm_hw_params *hw_params)
 291 {
 292         int result;
 293         result = snd_pcm_lib_malloc_pages(substream,
 294                                         params_buffer_bytes(hw_params));
 295         return result;
 296 }
 297
 298 /* hw_params callback */
 299 static int snd_p16v_pcm_hw_params_capture(struct snd_pcm_substream *substream,
 300                                       struct snd_pcm_hw_params *hw_params)
 301 {
 302         int result;
 303         result = snd_pcm_lib_malloc_pages(substream,
 304                                         params_buffer_bytes(hw_params));
 305         return result;
 306 }
 307
 308
 309 /* hw_free callback */
 310 static int snd_p16v_pcm_hw_free_playback(struct snd_pcm_substream *substream)
 311 {
 312         int result;
 313         result = snd_pcm_lib_free_pages(substream);
 314         return result;
 315 }
 316
 317 /* hw_free callback */
 318 static int snd_p16v_pcm_hw_free_capture(struct snd_pcm_substream *substream)
 319 {
 320         int result;
 321         result = snd_pcm_lib_free_pages(substream);
 322         return result;
 323 }
 324
 325
 326 /* prepare playback callback */
 327 static int snd_p16v_pcm_prepare_playback(struct snd_pcm_substream *substream)
 328 {
 329         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 330         struct snd_pcm_runtime *runtime = substream->runtime;
 331         int channel = substream->pcm->device - emu->p16v_device_offset;
 332         u32 *table_base = (u32 *)(emu->p16v_buffer.area+(8*16*channel));
 333         u32 period_size_bytes = frames_to_bytes(runtime, runtime->period_size);
 334         int i;
 335         u32 tmp;
 336
 337         //snd_printk("prepare:channel_number=%d, rate=%d, format=0x%x, channels=%d, buffer_size=%ld, period_size=%ld, periods=%u, frames_to_bytes=%d\n",channel, runtime->rate, runtime->format, runtime->channels, runtime->buffer_size, runtime->period_size, runtime->periods, frames_to_bytes(runtime, 1));
 338         //snd_printk("dma_addr=%x, dma_area=%p, table_base=%p\n",runtime->dma_addr, runtime->dma_area, table_base);
 339         //snd_printk("dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",emu->p16v_buffer.addr, emu->p16v_buffer.area, emu->p16v_buffer.bytes);
 340         tmp = snd_emu10k1_ptr_read(emu, A_SPDIF_SAMPLERATE, channel);
 341         switch (runtime->rate) {
 342         case 44100:
 343           snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0xe0e0) | 0x8080);
 344           break;
 345         case 96000:
 346           snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0xe0e0) | 0x4040);
 347           break;
 348         case 192000:
 349           snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0xe0e0) | 0x2020);
 350           break;
 351         case 48000:
 352         default:
 353           snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0xe0e0) | 0x0000);
 354           break;
 355         }
 356         /* FIXME: Check emu->buffer.size before actually writing to it. */
 357         for(i = 0; i < runtime->periods; i++) {
 358                 table_base[i*2]=runtime->dma_addr+(i*period_size_bytes);
 359                 table_base[(i*2)+1]=period_size_bytes<<16;
 360         }
 361
 362         snd_emu10k1_ptr20_write(emu, PLAYBACK_LIST_ADDR, channel, emu->p16v_buffer.addr+(8*16*channel));
 363         snd_emu10k1_ptr20_write(emu, PLAYBACK_LIST_SIZE, channel, (runtime->periods - 1) << 19);
 364         snd_emu10k1_ptr20_write(emu, PLAYBACK_LIST_PTR, channel, 0);
 365         snd_emu10k1_ptr20_write(emu, PLAYBACK_DMA_ADDR, channel, runtime->dma_addr);
 366         //snd_emu10k1_ptr20_write(emu, PLAYBACK_PERIOD_SIZE, channel, frames_to_bytes(runtime, runtime->period_size)<<16); // buffer size in bytes
 367         snd_emu10k1_ptr20_write(emu, PLAYBACK_PERIOD_SIZE, channel, 0); // buffer size in bytes
 368         snd_emu10k1_ptr20_write(emu, PLAYBACK_POINTER, channel, 0);
 369         snd_emu10k1_ptr20_write(emu, 0x07, channel, 0x0);
 370         snd_emu10k1_ptr20_write(emu, 0x08, channel, 0);
 371
 372         return 0;
 373 }
 374
 375 /* prepare capture callback */
 376 static int snd_p16v_pcm_prepare_capture(struct snd_pcm_substream *substream)
 377 {
 378         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 379         struct snd_pcm_runtime *runtime = substream->runtime;
 380         int channel = substream->pcm->device - emu->p16v_device_offset;
 381         u32 tmp;
 382         //printk("prepare capture:channel_number=%d, rate=%d, format=0x%x, channels=%d, buffer_size=%ld, period_size=%ld, frames_to_bytes=%d\n",channel, runtime->rate, runtime->format, runtime->channels, runtime->buffer_size, runtime->period_size,  frames_to_bytes(runtime, 1));
 383         tmp = snd_emu10k1_ptr_read(emu, A_SPDIF_SAMPLERATE, channel);
 384         switch (runtime->rate) {
 385         case 44100:
 386           snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0x0e00) | 0x0800);
 387           break;
 388         case 96000:
 389           snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0x0e00) | 0x0400);
 390           break;
 391         case 192000:
 392           snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0x0e00) | 0x0200);
 393           break;
 394         case 48000:
 395         default:
 396           snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0x0e00) | 0x0000);
 397           break;
 398         }
 399         /* FIXME: Check emu->buffer.size before actually writing to it. */
 400         snd_emu10k1_ptr20_write(emu, 0x13, channel, 0);
 401         snd_emu10k1_ptr20_write(emu, CAPTURE_DMA_ADDR, channel, runtime->dma_addr);
 402         snd_emu10k1_ptr20_write(emu, CAPTURE_BUFFER_SIZE, channel, frames_to_bytes(runtime, runtime->buffer_size) << 16); // buffer size in bytes
 403         snd_emu10k1_ptr20_write(emu, CAPTURE_POINTER, channel, 0);
 404         //snd_emu10k1_ptr20_write(emu, CAPTURE_SOURCE, 0x0, 0x333300e4); /* Select MIC or Line in */
 405         //snd_emu10k1_ptr20_write(emu, EXTENDED_INT_MASK, 0, snd_emu10k1_ptr20_read(emu, EXTENDED_INT_MASK, 0) | (0x110000<<channel));
 406
 407         return 0;
 408 }
 409
 410 static void snd_p16v_intr_enable(struct snd_emu10k1 *emu, unsigned int intrenb)
 411 {
 412         unsigned long flags;
 413         unsigned int enable;
 414
 415         spin_lock_irqsave(&emu->emu_lock, flags);
 416         enable = inl(emu->port + INTE2) | intrenb;
 417         outl(enable, emu->port + INTE2);
 418         spin_unlock_irqrestore(&emu->emu_lock, flags);
 419 }
 420
 421 static void snd_p16v_intr_disable(struct snd_emu10k1 *emu, unsigned int intrenb)
 422 {
 423         unsigned long flags;
 424         unsigned int disable;
 425
 426         spin_lock_irqsave(&emu->emu_lock, flags);
 427         disable = inl(emu->port + INTE2) & (~intrenb);
 428         outl(disable, emu->port + INTE2);
 429         spin_unlock_irqrestore(&emu->emu_lock, flags);
 430 }
 431
 432 /* trigger_playback callback */
 433 static int snd_p16v_pcm_trigger_playback(struct snd_pcm_substream *substream,
 434                                     int cmd)
 435 {
 436         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 437         struct snd_pcm_runtime *runtime;
 438         struct snd_emu10k1_pcm *epcm;
 439         int channel;
 440         int result = 0;
 441         struct snd_pcm_substream *s;
 442         u32 basic = 0;
 443         u32 inte = 0;
 444         int running = 0;
 445
 446         switch (cmd) {
 447         case SNDRV_PCM_TRIGGER_START:
 448                 running=1;
 449                 break;
 450         case SNDRV_PCM_TRIGGER_STOP:
 451         default:
 452                 running = 0;
 453                 break;
 454         }
 455         snd_pcm_group_for_each_entry(s, substream) {
 456                 if (snd_pcm_substream_chip(s) != emu ||
 457                     s->stream != SNDRV_PCM_STREAM_PLAYBACK)
 458                         continue;
 459                 runtime = s->runtime;
 460                 epcm = runtime->private_data;
 461                 channel = substream->pcm->device-emu->p16v_device_offset;
 462                 //snd_printk("p16v channel=%d\n",channel);
 463                 epcm->running = running;
 464                 basic |= (0x1<<channel);
 465                 inte |= (INTE2_PLAYBACK_CH_0_LOOP<<channel);
 466                 snd_pcm_trigger_done(s, substream);
 467         }
 468         //snd_printk("basic=0x%x, inte=0x%x\n",basic, inte);
 469
 470         switch (cmd) {
 471         case SNDRV_PCM_TRIGGER_START:
 472                 snd_p16v_intr_enable(emu, inte);
 473                 snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0)| (basic));
 474                 break;
 475         case SNDRV_PCM_TRIGGER_STOP:
 476                 snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0) & ~(basic));
 477                 snd_p16v_intr_disable(emu, inte);
 478                 break;
 479         default:
 480                 result = -EINVAL;
 481                 break;
 482         }
 483         return result;
 484 }
 485
 486 /* trigger_capture callback */
 487 static int snd_p16v_pcm_trigger_capture(struct snd_pcm_substream *substream,
 488                                    int cmd)
 489 {
 490         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 491         struct snd_pcm_runtime *runtime = substream->runtime;
 492         struct snd_emu10k1_pcm *epcm = runtime->private_data;
 493         int channel = 0;
 494         int result = 0;
 495         u32 inte = INTE2_CAPTURE_CH_0_LOOP | INTE2_CAPTURE_CH_0_HALF_LOOP;
 496
 497         switch (cmd) {
 498         case SNDRV_PCM_TRIGGER_START:
 499                 snd_p16v_intr_enable(emu, inte);
 500                 snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0)|(0x100<<channel));
 501                 epcm->running = 1;
 502                 break;
 503         case SNDRV_PCM_TRIGGER_STOP:
 504                 snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0) & ~(0x100<<channel));
 505                 snd_p16v_intr_disable(emu, inte);
 506                 //snd_emu10k1_ptr20_write(emu, EXTENDED_INT_MASK, 0, snd_emu10k1_ptr20_read(emu, EXTENDED_INT_MASK, 0) & ~(0x110000<<channel));
 507                 epcm->running = 0;
 508                 break;
 509         default:
 510                 result = -EINVAL;
 511                 break;
 512         }
 513         return result;
 514 }
 515
 516 /* pointer_playback callback */
 517 static snd_pcm_uframes_t
 518 snd_p16v_pcm_pointer_playback(struct snd_pcm_substream *substream)
 519 {
 520         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 521         struct snd_pcm_runtime *runtime = substream->runtime;
 522         struct snd_emu10k1_pcm *epcm = runtime->private_data;
 523         snd_pcm_uframes_t ptr, ptr1, ptr2,ptr3,ptr4 = 0;
 524         int channel = substream->pcm->device - emu->p16v_device_offset;
 525         if (!epcm->running)
 526                 return 0;
 527
 528         ptr3 = snd_emu10k1_ptr20_read(emu, PLAYBACK_LIST_PTR, channel);
 529         ptr1 = snd_emu10k1_ptr20_read(emu, PLAYBACK_POINTER, channel);
 530         ptr4 = snd_emu10k1_ptr20_read(emu, PLAYBACK_LIST_PTR, channel);
 531         if (ptr3 != ptr4) ptr1 = snd_emu10k1_ptr20_read(emu, PLAYBACK_POINTER, channel);
 532         ptr2 = bytes_to_frames(runtime, ptr1);
 533         ptr2+= (ptr4 >> 3) * runtime->period_size;
 534         ptr=ptr2;
 535         if (ptr >= runtime->buffer_size)
 536                 ptr -= runtime->buffer_size;
 537
 538         return ptr;
 539 }
 540
 541 /* pointer_capture callback */
 542 static snd_pcm_uframes_t
 543 snd_p16v_pcm_pointer_capture(struct snd_pcm_substream *substream)
 544 {
 545         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 546         struct snd_pcm_runtime *runtime = substream->runtime;
 547         struct snd_emu10k1_pcm *epcm = runtime->private_data;
 548         snd_pcm_uframes_t ptr, ptr1, ptr2 = 0;
 549         int channel = 0;
 550
 551         if (!epcm->running)
 552                 return 0;
 553
 554         ptr1 = snd_emu10k1_ptr20_read(emu, CAPTURE_POINTER, channel);
 555         ptr2 = bytes_to_frames(runtime, ptr1);
 556         ptr=ptr2;
 557         if (ptr >= runtime->buffer_size) {
 558                 ptr -= runtime->buffer_size;
 559                 printk(KERN_WARNING "buffer capture limited!\n");
 560         }
 561         //printk("ptr1 = 0x%lx, ptr2=0x%lx, ptr=0x%lx, buffer_size = 0x%x, period_size = 0x%x, bits=%d, rate=%d\n", ptr1, ptr2, ptr, (int)runtime->buffer_size, (int)runtime->period_size, (int)runtime->frame_bits, (int)runtime->rate);
 562
 563         return ptr;
 564 }
 565
 566 /* operators */
 567 static struct snd_pcm_ops snd_p16v_playback_front_ops = {
 568         .open =        snd_p16v_pcm_open_playback_front,
 569         .close =       snd_p16v_pcm_close_playback,
 570         .ioctl =       snd_pcm_lib_ioctl,
 571         .hw_params =   snd_p16v_pcm_hw_params_playback,
 572         .hw_free =     snd_p16v_pcm_hw_free_playback,
 573         .prepare =     snd_p16v_pcm_prepare_playback,
 574         .trigger =     snd_p16v_pcm_trigger_playback,
 575         .pointer =     snd_p16v_pcm_pointer_playback,
 576 };
 577
 578 static struct snd_pcm_ops snd_p16v_capture_ops = {
 579         .open =        snd_p16v_pcm_open_capture,
 580         .close =       snd_p16v_pcm_close_capture,
 581         .ioctl =       snd_pcm_lib_ioctl,
 582         .hw_params =   snd_p16v_pcm_hw_params_capture,
 583         .hw_free =     snd_p16v_pcm_hw_free_capture,
 584         .prepare =     snd_p16v_pcm_prepare_capture,
 585         .trigger =     snd_p16v_pcm_trigger_capture,
 586         .pointer =     snd_p16v_pcm_pointer_capture,
 587 };
 588
 589
 590 int snd_p16v_free(struct snd_emu10k1 *chip)
 591 {
 592         // release the data
 593         if (chip->p16v_buffer.area) {
 594                 snd_dma_free_pages(&chip->p16v_buffer);
 595                 //snd_printk("period lables free: %p\n", &chip->p16v_buffer);
 596         }
 597         return 0;
 598 }
 599
 600 int __devinit snd_p16v_pcm(struct snd_emu10k1 *emu, int device, struct snd_pcm **rpcm)
 601 {
 602         struct snd_pcm *pcm;
 603         struct snd_pcm_substream *substream;
 604         int err;
 605         int capture=1;
 606
 607         //snd_printk("snd_p16v_pcm called. device=%d\n", device);
 608         emu->p16v_device_offset = device;
 609         if (rpcm)
 610                 *rpcm = NULL;
 611
 612         if ((err = snd_pcm_new(emu->card, "p16v", device, 1, capture, &pcm)) < 0)
 613                 return err;
 614
 615         pcm->private_data = emu;
 616         // Single playback 8 channel device.
 617         // Single capture 2 channel device.
 618         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_p16v_playback_front_ops);
 619         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_p16v_capture_ops);
 620
 621         pcm->info_flags = 0;
 622         pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
 623         strcpy(pcm->name, "p16v");
 624         emu->pcm_p16v = pcm;
 625
 626         for(substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
 627             substream;
 628             substream = substream->next) {
 629                 if ((err = snd_pcm_lib_preallocate_pages(substream,
 630                                                          SNDRV_DMA_TYPE_DEV,
 631                                                          snd_dma_pci_data(emu->pci),
 632                                                          ((65536 - 64) * 8), ((65536 - 64) * 8))) < 0)
 633                         return err;
 634                 //snd_printk("preallocate playback substream: err=%d\n", err);
 635         }
 636
 637         for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream;
 638               substream;
 639               substream = substream->next) {
 640                 if ((err = snd_pcm_lib_preallocate_pages(substream,
 641                                                    SNDRV_DMA_TYPE_DEV,
 642                                                    snd_dma_pci_data(emu->pci),
 643                                                    65536 - 64, 65536 - 64)) < 0)
 644                         return err;
 645                 //snd_printk("preallocate capture substream: err=%d\n", err);
 646         }
 647
 648         if (rpcm)
 649                 *rpcm = pcm;
 650
 651         return 0;
 652 }
 653
 654 static int snd_p16v_volume_info(struct snd_kcontrol *kcontrol,
 655                                 struct snd_ctl_elem_info *uinfo)
 656 {
 657         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 658         uinfo->count = 2;
 659         uinfo->value.integer.min = 0;
 660         uinfo->value.integer.max = 255;
 661         return 0;
 662 }
 663
 664 static int snd_p16v_volume_get(struct snd_kcontrol *kcontrol,
 665                                struct snd_ctl_elem_value *ucontrol)
 666 {
 667         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
 668         int high_low = (kcontrol->private_value >> 8) & 0xff;
 669         int reg = kcontrol->private_value & 0xff;
 670         u32 value;
 671
 672         value = snd_emu10k1_ptr20_read(emu, reg, high_low);
 673         if (high_low) {
 674                 ucontrol->value.integer.value[0] = 0xff - ((value >> 24) & 0xff); /* Left */
 675                 ucontrol->value.integer.value[1] = 0xff - ((value >> 16) & 0xff); /* Right */
 676         } else {
 677                 ucontrol->value.integer.value[0] = 0xff - ((value >> 8) & 0xff); /* Left */
 678                 ucontrol->value.integer.value[1] = 0xff - ((value >> 0) & 0xff); /* Right */
 679         }
 680         return 0;
 681 }
 682
 683 static int snd_p16v_volume_put(struct snd_kcontrol *kcontrol,
 684                                struct snd_ctl_elem_value *ucontrol)
 685 {
 686         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
 687         int high_low = (kcontrol->private_value >> 8) & 0xff;
 688         int reg = kcontrol->private_value & 0xff;
 689         u32 value, oval;
 690
 691         oval = value = snd_emu10k1_ptr20_read(emu, reg, 0);
 692         if (high_low == 1) {
 693                 value &= 0xffff;
 694                 value |= ((0xff - ucontrol->value.integer.value[0]) << 24) |
 695                         ((0xff - ucontrol->value.integer.value[1]) << 16);
 696         } else {
 697                 value &= 0xffff0000;
 698                 value |= ((0xff - ucontrol->value.integer.value[0]) << 8) |
 699                         ((0xff - ucontrol->value.integer.value[1]) );
 700         }
 701         if (value != oval) {
 702                 snd_emu10k1_ptr20_write(emu, reg, 0, value);
 703                 return 1;
 704         }
 705         return 0;
 706 }
 707
 708 static int snd_p16v_capture_source_info(struct snd_kcontrol *kcontrol,
 709                                         struct snd_ctl_elem_info *uinfo)
 710 {
 711         static char *texts[8] = {
 712                 "SPDIF", "I2S", "SRC48", "SRCMulti_SPDIF", "SRCMulti_I2S",
 713                 "CDIF", "FX", "AC97"
 714         };
 715
 716         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 717         uinfo->count = 1;
 718         uinfo->value.enumerated.items = 8;
 719         if (uinfo->value.enumerated.item > 7)
 720                 uinfo->value.enumerated.item = 7;
 721         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
 722         return 0;
 723 }
 724
 725 static int snd_p16v_capture_source_get(struct snd_kcontrol *kcontrol,
 726                                         struct snd_ctl_elem_value *ucontrol)
 727 {
 728         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
 729
 730         ucontrol->value.enumerated.item[0] = emu->p16v_capture_source;
 731         return 0;
 732 }
 733
 734 static int snd_p16v_capture_source_put(struct snd_kcontrol *kcontrol,
 735                                         struct snd_ctl_elem_value *ucontrol)
 736 {
 737         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
 738         unsigned int val;
 739         int change = 0;
 740         u32 mask;
 741         u32 source;
 742
 743         val = ucontrol->value.enumerated.item[0] ;
 744         if (val > 7)
 745                 return -EINVAL;
 746         change = (emu->p16v_capture_source != val);
 747         if (change) {
 748                 emu->p16v_capture_source = val;
 749                 source = (val << 28) | (val << 24) | (val << 20) | (val << 16);
 750                 mask = snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0) & 0xffff;
 751                 snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, source | mask);
 752         }
 753         return change;
 754 }
 755
 756 static int snd_p16v_capture_channel_info(struct snd_kcontrol *kcontrol,
 757                                          struct snd_ctl_elem_info *uinfo)
 758 {
 759         static char *texts[4] = { "0", "1", "2", "3",  };
 760
 761         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 762         uinfo->count = 1;
 763         uinfo->value.enumerated.items = 4;
 764         if (uinfo->value.enumerated.item > 3)
 765                 uinfo->value.enumerated.item = 3;
 766         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
 767         return 0;
 768 }
 769
 770 static int snd_p16v_capture_channel_get(struct snd_kcontrol *kcontrol,
 771                                         struct snd_ctl_elem_value *ucontrol)
 772 {
 773         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
 774
 775         ucontrol->value.enumerated.item[0] = emu->p16v_capture_channel;
 776         return 0;
 777 }
 778
 779 static int snd_p16v_capture_channel_put(struct snd_kcontrol *kcontrol,
 780                                         struct snd_ctl_elem_value *ucontrol)
 781 {
 782         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
 783         unsigned int val;
 784         int change = 0;
 785         u32 tmp;
 786
 787         val = ucontrol->value.enumerated.item[0] ;
 788         if (val > 3)
 789                 return -EINVAL;
 790         change = (emu->p16v_capture_channel != val);
 791         if (change) {
 792                 emu->p16v_capture_channel = val;
 793                 tmp = snd_emu10k1_ptr20_read(emu, CAPTURE_P16V_SOURCE, 0) & 0xfffc;
 794                 snd_emu10k1_ptr20_write(emu, CAPTURE_P16V_SOURCE, 0, tmp | val);
 795         }
 796         return change;
 797 }
 798 static const DECLARE_TLV_DB_SCALE(snd_p16v_db_scale1, -5175, 25, 1);
 799
 800 #define P16V_VOL(xname,xreg,xhl) { \
 801         .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 802         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |             \
 803                   SNDRV_CTL_ELEM_ACCESS_TLV_READ,               \
 804         .info = snd_p16v_volume_info, \
 805         .get = snd_p16v_volume_get, \
 806         .put = snd_p16v_volume_put, \
 807         .tlv = { .p = snd_p16v_db_scale1 },     \
 808         .private_value = ((xreg) | ((xhl) << 8)) \
 809 }
 810
 811 static struct snd_kcontrol_new p16v_mixer_controls[] __devinitdata = {
 812         P16V_VOL("HD Analog Front Playback Volume", PLAYBACK_VOLUME_MIXER9, 0),
 813         P16V_VOL("HD Analog Rear Playback Volume", PLAYBACK_VOLUME_MIXER10, 1),
 814         P16V_VOL("HD Analog Center/LFE Playback Volume", PLAYBACK_VOLUME_MIXER9, 1),
 815         P16V_VOL("HD Analog Side Playback Volume", PLAYBACK_VOLUME_MIXER10, 0),
 816         P16V_VOL("HD SPDIF Front Playback Volume", PLAYBACK_VOLUME_MIXER7, 0),
 817         P16V_VOL("HD SPDIF Rear Playback Volume", PLAYBACK_VOLUME_MIXER8, 1),
 818         P16V_VOL("HD SPDIF Center/LFE Playback Volume", PLAYBACK_VOLUME_MIXER7, 1),
 819         P16V_VOL("HD SPDIF Side Playback Volume", PLAYBACK_VOLUME_MIXER8, 0),
 820         {
 821                 .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
 822                 .name =         "HD source Capture",
 823                 .info =         snd_p16v_capture_source_info,
 824                 .get =          snd_p16v_capture_source_get,
 825                 .put =          snd_p16v_capture_source_put
 826         },
 827         {
 828                 .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
 829                 .name =         "HD channel Capture",
 830                 .info =         snd_p16v_capture_channel_info,
 831                 .get =          snd_p16v_capture_channel_get,
 832                 .put =          snd_p16v_capture_channel_put
 833         },
 834 };
 835
 836
 837 int __devinit snd_p16v_mixer(struct snd_emu10k1 *emu)
 838 {
 839         int i, err;
 840         struct snd_card *card = emu->card;
 841
 842         for (i = 0; i < ARRAY_SIZE(p16v_mixer_controls); i++) {
 843                 if ((err = snd_ctl_add(card, snd_ctl_new1(&p16v_mixer_controls[i],
 844                                                           emu))) < 0)
 845                         return err;
 846         }
 847         return 0;
 848 }
 849
 850 #ifdef CONFIG_PM
 851
 852 #define NUM_CHS 1       /* up to 4, but only first channel is used */
 853
 854 int __devinit snd_p16v_alloc_pm_buffer(struct snd_emu10k1 *emu)
 855 {
 856         emu->p16v_saved = vmalloc(NUM_CHS * 4 * 0x80);
 857         if (! emu->p16v_saved)
 858                 return -ENOMEM;
 859         return 0;
 860 }
 861
 862 void snd_p16v_free_pm_buffer(struct snd_emu10k1 *emu)
 863 {
 864         vfree(emu->p16v_saved);
 865 }
 866
 867 void snd_p16v_suspend(struct snd_emu10k1 *emu)
 868 {
 869         int i, ch;
 870         unsigned int *val;
 871
 872         val = emu->p16v_saved;
 873         for (ch = 0; ch < NUM_CHS; ch++)
 874                 for (i = 0; i < 0x80; i++, val++)
 875                         *val = snd_emu10k1_ptr20_read(emu, i, ch);
 876 }
 877
 878 void snd_p16v_resume(struct snd_emu10k1 *emu)
 879 {
 880         int i, ch;
 881         unsigned int *val;
 882
 883         val = emu->p16v_saved;
 884         for (ch = 0; ch < NUM_CHS; ch++)
 885                 for (i = 0; i < 0x80; i++, val++)
 886                         snd_emu10k1_ptr20_write(emu, i, ch, *val);
 887 }
 888 #endif