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 <sound/driver.h>
  91 #include <linux/delay.h>
  92 #include <linux/init.h>
  93 #include <linux/interrupt.h>
  94 #include <linux/pci.h>
  95 #include <linux/slab.h>
  96 #include <linux/vmalloc.h>
  97 #include <linux/moduleparam.h>
  98 #include <sound/core.h>
  99 #include <sound/initval.h>
 100 #include <sound/pcm.h>
 101 #include <sound/ac97_codec.h>
 102 #include <sound/info.h>
 103 #include <sound/tlv.h>
 104 #include <sound/emu10k1.h>
 105 #include "p16v.h"
 106
 107 #define SET_CHANNEL 0  /* Testing channel outputs 0=Front, 1=Center/LFE, 2=Unknown, 3=Rear */
 108 #define PCM_FRONT_CHANNEL 0
 109 #define PCM_REAR_CHANNEL 1
 110 #define PCM_CENTER_LFE_CHANNEL 2
 111 #define PCM_SIDE_CHANNEL 3
 112 #define CONTROL_FRONT_CHANNEL 0
 113 #define CONTROL_REAR_CHANNEL 3
 114 #define CONTROL_CENTER_LFE_CHANNEL 1
 115 #define CONTROL_SIDE_CHANNEL 2
 116
 117 /* Card IDs:
 118  * Class 0401: 1102:0004 (rev 04) Subsystem: 1102:2002 -> Audigy2 ZS 7.1 Model:SB0350
 119  * Class 0401: 1102:0004 (rev 04) Subsystem: 1102:1007 -> Audigy2 6.1    Model:SB0240
 120  * Class 0401: 1102:0004 (rev 04) Subsystem: 1102:1002 -> Audigy2 Platinum  Model:SB msb0240230009266
 121  * Class 0401: 1102:0004 (rev 04) Subsystem: 1102:2007 -> Audigy4 Pro Model:SB0380 M1SB0380472001901E
 122  *
 123  */
 124
 125  /* hardware definition */
 126 static struct snd_pcm_hardware snd_p16v_playback_hw = {
 127         .info =                 (SNDRV_PCM_INFO_MMAP |
 128                                  SNDRV_PCM_INFO_INTERLEAVED |
 129                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
 130                                  SNDRV_PCM_INFO_RESUME |
 131                                  SNDRV_PCM_INFO_MMAP_VALID),
 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         return 0;
 211 }
 212 /* open_capture callback */
 213 static int snd_p16v_pcm_open_capture_channel(struct snd_pcm_substream *substream, int channel_id)
 214 {
 215         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 216         struct snd_emu10k1_voice *channel = &(emu->p16v_capture_voice);
 217         struct snd_emu10k1_pcm *epcm;
 218         struct snd_pcm_runtime *runtime = substream->runtime;
 219         int err;
 220
 221         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
 222         //snd_printk("epcm kcalloc: %p\n", epcm);
 223
 224         if (epcm == NULL)
 225                 return -ENOMEM;
 226         epcm->emu = emu;
 227         epcm->substream = substream;
 228         //snd_printk("epcm device=%d, channel_id=%d\n", substream->pcm->device, channel_id);
 229
 230         runtime->private_data = epcm;
 231         runtime->private_free = snd_p16v_pcm_free_substream;
 232
 233         runtime->hw = snd_p16v_capture_hw;
 234
 235         channel->emu = emu;
 236         channel->number = channel_id;
 237
 238         channel->use=1;
 239         //snd_printk("p16v: open channel_id=%d, channel=%p, use=0x%x\n", channel_id, channel, channel->use);
 240         //printk("open:channel_id=%d, chip=%p, channel=%p\n",channel_id, chip, channel);
 241         //channel->interrupt = snd_p16v_pcm_channel_interrupt;
 242         channel->epcm=epcm;
 243         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 244                 return err;
 245
 246         return 0;
 247 }
 248
 249
 250 /* close callback */
 251 static int snd_p16v_pcm_close_playback(struct snd_pcm_substream *substream)
 252 {
 253         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 254         //struct snd_pcm_runtime *runtime = substream->runtime;
 255         //struct snd_emu10k1_pcm *epcm = runtime->private_data;
 256         emu->p16v_voices[substream->pcm->device - emu->p16v_device_offset].use=0;
 257         /* FIXME: maybe zero others */
 258         return 0;
 259 }
 260
 261 /* close callback */
 262 static int snd_p16v_pcm_close_capture(struct snd_pcm_substream *substream)
 263 {
 264         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 265         //struct snd_pcm_runtime *runtime = substream->runtime;
 266         //struct snd_emu10k1_pcm *epcm = runtime->private_data;
 267         emu->p16v_capture_voice.use=0;
 268         /* FIXME: maybe zero others */
 269         return 0;
 270 }
 271
 272 static int snd_p16v_pcm_open_playback_front(struct snd_pcm_substream *substream)
 273 {
 274         return snd_p16v_pcm_open_playback_channel(substream, PCM_FRONT_CHANNEL);
 275 }
 276
 277 static int snd_p16v_pcm_open_capture(struct snd_pcm_substream *substream)
 278 {
 279         // Only using channel 0 for now, but the card has 2 channels.
 280         return snd_p16v_pcm_open_capture_channel(substream, 0);
 281 }
 282
 283 /* hw_params callback */
 284 static int snd_p16v_pcm_hw_params_playback(struct snd_pcm_substream *substream,
 285                                       struct snd_pcm_hw_params *hw_params)
 286 {
 287         int result;
 288         result = snd_pcm_lib_malloc_pages(substream,
 289                                         params_buffer_bytes(hw_params));
 290         return result;
 291 }
 292
 293 /* hw_params callback */
 294 static int snd_p16v_pcm_hw_params_capture(struct snd_pcm_substream *substream,
 295                                       struct snd_pcm_hw_params *hw_params)
 296 {
 297         int result;
 298         result = snd_pcm_lib_malloc_pages(substream,
 299                                         params_buffer_bytes(hw_params));
 300         return result;
 301 }
 302
 303
 304 /* hw_free callback */
 305 static int snd_p16v_pcm_hw_free_playback(struct snd_pcm_substream *substream)
 306 {
 307         int result;
 308         result = snd_pcm_lib_free_pages(substream);
 309         return result;
 310 }
 311
 312 /* hw_free callback */
 313 static int snd_p16v_pcm_hw_free_capture(struct snd_pcm_substream *substream)
 314 {
 315         int result;
 316         result = snd_pcm_lib_free_pages(substream);
 317         return result;
 318 }
 319
 320
 321 /* prepare playback callback */
 322 static int snd_p16v_pcm_prepare_playback(struct snd_pcm_substream *substream)
 323 {
 324         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 325         struct snd_pcm_runtime *runtime = substream->runtime;
 326         int channel = substream->pcm->device - emu->p16v_device_offset;
 327         u32 *table_base = (u32 *)(emu->p16v_buffer.area+(8*16*channel));
 328         u32 period_size_bytes = frames_to_bytes(runtime, runtime->period_size);
 329         int i;
 330         u32 tmp;
 331
 332         //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));
 333         //snd_printk("dma_addr=%x, dma_area=%p, table_base=%p\n",runtime->dma_addr, runtime->dma_area, table_base);
 334         //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);
 335         tmp = snd_emu10k1_ptr_read(emu, A_SPDIF_SAMPLERATE, channel);
 336         switch (runtime->rate) {
 337         case 44100:
 338           snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0xe0e0) | 0x8080);
 339           break;
 340         case 96000:
 341           snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0xe0e0) | 0x4040);
 342           break;
 343         case 192000:
 344           snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0xe0e0) | 0x2020);
 345           break;
 346         case 48000:
 347         default:
 348           snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0xe0e0) | 0x0000);
 349           break;
 350         }
 351         /* FIXME: Check emu->buffer.size before actually writing to it. */
 352         for(i=0; i < runtime->periods; i++) {
 353                 table_base[i*2]=runtime->dma_addr+(i*period_size_bytes);
 354                 table_base[(i*2)+1]=period_size_bytes<<16;
 355         }
 356
 357         snd_emu10k1_ptr20_write(emu, PLAYBACK_LIST_ADDR, channel, emu->p16v_buffer.addr+(8*16*channel));
 358         snd_emu10k1_ptr20_write(emu, PLAYBACK_LIST_SIZE, channel, (runtime->periods - 1) << 19);
 359         snd_emu10k1_ptr20_write(emu, PLAYBACK_LIST_PTR, channel, 0);
 360         snd_emu10k1_ptr20_write(emu, PLAYBACK_DMA_ADDR, channel, runtime->dma_addr);
 361         //snd_emu10k1_ptr20_write(emu, PLAYBACK_PERIOD_SIZE, channel, frames_to_bytes(runtime, runtime->period_size)<<16); // buffer size in bytes
 362         snd_emu10k1_ptr20_write(emu, PLAYBACK_PERIOD_SIZE, channel, 0); // buffer size in bytes
 363         snd_emu10k1_ptr20_write(emu, PLAYBACK_POINTER, channel, 0);
 364         snd_emu10k1_ptr20_write(emu, 0x07, channel, 0x0);
 365         snd_emu10k1_ptr20_write(emu, 0x08, channel, 0);
 366
 367         return 0;
 368 }
 369
 370 /* prepare capture callback */
 371 static int snd_p16v_pcm_prepare_capture(struct snd_pcm_substream *substream)
 372 {
 373         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 374         struct snd_pcm_runtime *runtime = substream->runtime;
 375         int channel = substream->pcm->device - emu->p16v_device_offset;
 376         u32 tmp;
 377         //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));
 378         tmp = snd_emu10k1_ptr_read(emu, A_SPDIF_SAMPLERATE, channel);
 379         switch (runtime->rate) {
 380         case 44100:
 381           snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0x0e00) | 0x0800);
 382           break;
 383         case 96000:
 384           snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0x0e00) | 0x0400);
 385           break;
 386         case 192000:
 387           snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0x0e00) | 0x0200);
 388           break;
 389         case 48000:
 390         default:
 391           snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0x0e00) | 0x0000);
 392           break;
 393         }
 394         /* FIXME: Check emu->buffer.size before actually writing to it. */
 395         snd_emu10k1_ptr20_write(emu, 0x13, channel, 0);
 396         snd_emu10k1_ptr20_write(emu, CAPTURE_DMA_ADDR, channel, runtime->dma_addr);
 397         snd_emu10k1_ptr20_write(emu, CAPTURE_BUFFER_SIZE, channel, frames_to_bytes(runtime, runtime->buffer_size)<<16); // buffer size in bytes
 398         snd_emu10k1_ptr20_write(emu, CAPTURE_POINTER, channel, 0);
 399         //snd_emu10k1_ptr20_write(emu, CAPTURE_SOURCE, 0x0, 0x333300e4); /* Select MIC or Line in */
 400         //snd_emu10k1_ptr20_write(emu, EXTENDED_INT_MASK, 0, snd_emu10k1_ptr20_read(emu, EXTENDED_INT_MASK, 0) | (0x110000<<channel));
 401
 402         return 0;
 403 }
 404
 405 static void snd_p16v_intr_enable(struct snd_emu10k1 *emu, unsigned int intrenb)
 406 {
 407         unsigned long flags;
 408         unsigned int enable;
 409
 410         spin_lock_irqsave(&emu->emu_lock, flags);
 411         enable = inl(emu->port + INTE2) | intrenb;
 412         outl(enable, emu->port + INTE2);
 413         spin_unlock_irqrestore(&emu->emu_lock, flags);
 414 }
 415
 416 static void snd_p16v_intr_disable(struct snd_emu10k1 *emu, unsigned int intrenb)
 417 {
 418         unsigned long flags;
 419         unsigned int disable;
 420
 421         spin_lock_irqsave(&emu->emu_lock, flags);
 422         disable = inl(emu->port + INTE2) & (~intrenb);
 423         outl(disable, emu->port + INTE2);
 424         spin_unlock_irqrestore(&emu->emu_lock, flags);
 425 }
 426
 427 /* trigger_playback callback */
 428 static int snd_p16v_pcm_trigger_playback(struct snd_pcm_substream *substream,
 429                                     int cmd)
 430 {
 431         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 432         struct snd_pcm_runtime *runtime;
 433         struct snd_emu10k1_pcm *epcm;
 434         int channel;
 435         int result = 0;
 436         struct list_head *pos;
 437         struct snd_pcm_substream *s;
 438         u32 basic = 0;
 439         u32 inte = 0;
 440         int running=0;
 441
 442         switch (cmd) {
 443         case SNDRV_PCM_TRIGGER_START:
 444                 running=1;
 445                 break;
 446         case SNDRV_PCM_TRIGGER_STOP:
 447         default:
 448                 running=0;
 449                 break;
 450         }
 451         snd_pcm_group_for_each(pos, substream) {
 452                 s = snd_pcm_group_substream_entry(pos);
 453                 runtime = s->runtime;
 454                 epcm = runtime->private_data;
 455                 channel = substream->pcm->device-emu->p16v_device_offset;
 456                 //snd_printk("p16v channel=%d\n",channel);
 457                 epcm->running = running;
 458                 basic |= (0x1<<channel);
 459                 inte |= (INTE2_PLAYBACK_CH_0_LOOP<<channel);
 460                 snd_pcm_trigger_done(s, substream);
 461         }
 462         //snd_printk("basic=0x%x, inte=0x%x\n",basic, inte);
 463
 464         switch (cmd) {
 465         case SNDRV_PCM_TRIGGER_START:
 466                 snd_p16v_intr_enable(emu, inte);
 467                 snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0)| (basic));
 468                 break;
 469         case SNDRV_PCM_TRIGGER_STOP:
 470                 snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0) & ~(basic));
 471                 snd_p16v_intr_disable(emu, inte);
 472                 break;
 473         default:
 474                 result = -EINVAL;
 475                 break;
 476         }
 477         return result;
 478 }
 479
 480 /* trigger_capture callback */
 481 static int snd_p16v_pcm_trigger_capture(struct snd_pcm_substream *substream,
 482                                    int cmd)
 483 {
 484         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 485         struct snd_pcm_runtime *runtime = substream->runtime;
 486         struct snd_emu10k1_pcm *epcm = runtime->private_data;
 487         int channel = 0;
 488         int result = 0;
 489         u32 inte = INTE2_CAPTURE_CH_0_LOOP | INTE2_CAPTURE_CH_0_HALF_LOOP;
 490
 491         switch (cmd) {
 492         case SNDRV_PCM_TRIGGER_START:
 493                 snd_p16v_intr_enable(emu, inte);
 494                 snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0)|(0x100<<channel));
 495                 epcm->running = 1;
 496                 break;
 497         case SNDRV_PCM_TRIGGER_STOP:
 498                 snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0) & ~(0x100<<channel));
 499                 snd_p16v_intr_disable(emu, inte);
 500                 //snd_emu10k1_ptr20_write(emu, EXTENDED_INT_MASK, 0, snd_emu10k1_ptr20_read(emu, EXTENDED_INT_MASK, 0) & ~(0x110000<<channel));
 501                 epcm->running = 0;
 502                 break;
 503         default:
 504                 result = -EINVAL;
 505                 break;
 506         }
 507         return result;
 508 }
 509
 510 /* pointer_playback callback */
 511 static snd_pcm_uframes_t
 512 snd_p16v_pcm_pointer_playback(struct snd_pcm_substream *substream)
 513 {
 514         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 515         struct snd_pcm_runtime *runtime = substream->runtime;
 516         struct snd_emu10k1_pcm *epcm = runtime->private_data;
 517         snd_pcm_uframes_t ptr, ptr1, ptr2,ptr3,ptr4 = 0;
 518         int channel = substream->pcm->device - emu->p16v_device_offset;
 519         if (!epcm->running)
 520                 return 0;
 521
 522         ptr3 = snd_emu10k1_ptr20_read(emu, PLAYBACK_LIST_PTR, channel);
 523         ptr1 = snd_emu10k1_ptr20_read(emu, PLAYBACK_POINTER, channel);
 524         ptr4 = snd_emu10k1_ptr20_read(emu, PLAYBACK_LIST_PTR, channel);
 525         if (ptr3 != ptr4) ptr1 = snd_emu10k1_ptr20_read(emu, PLAYBACK_POINTER, channel);
 526         ptr2 = bytes_to_frames(runtime, ptr1);
 527         ptr2+= (ptr4 >> 3) * runtime->period_size;
 528         ptr=ptr2;
 529         if (ptr >= runtime->buffer_size)
 530                 ptr -= runtime->buffer_size;
 531
 532         return ptr;
 533 }
 534
 535 /* pointer_capture callback */
 536 static snd_pcm_uframes_t
 537 snd_p16v_pcm_pointer_capture(struct snd_pcm_substream *substream)
 538 {
 539         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 540         struct snd_pcm_runtime *runtime = substream->runtime;
 541         struct snd_emu10k1_pcm *epcm = runtime->private_data;
 542         snd_pcm_uframes_t ptr, ptr1, ptr2 = 0;
 543         int channel = 0;
 544
 545         if (!epcm->running)
 546                 return 0;
 547
 548         ptr1 = snd_emu10k1_ptr20_read(emu, CAPTURE_POINTER, channel);
 549         ptr2 = bytes_to_frames(runtime, ptr1);
 550         ptr=ptr2;
 551         if (ptr >= runtime->buffer_size) {
 552                 ptr -= runtime->buffer_size;
 553                 printk(KERN_WARNING "buffer capture limited!\n");
 554         }
 555         //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);
 556
 557         return ptr;
 558 }
 559
 560 /* operators */
 561 static struct snd_pcm_ops snd_p16v_playback_front_ops = {
 562         .open =        snd_p16v_pcm_open_playback_front,
 563         .close =       snd_p16v_pcm_close_playback,
 564         .ioctl =       snd_pcm_lib_ioctl,
 565         .hw_params =   snd_p16v_pcm_hw_params_playback,
 566         .hw_free =     snd_p16v_pcm_hw_free_playback,
 567         .prepare =     snd_p16v_pcm_prepare_playback,
 568         .trigger =     snd_p16v_pcm_trigger_playback,
 569         .pointer =     snd_p16v_pcm_pointer_playback,
 570 };
 571
 572 static struct snd_pcm_ops snd_p16v_capture_ops = {
 573         .open =        snd_p16v_pcm_open_capture,
 574         .close =       snd_p16v_pcm_close_capture,
 575         .ioctl =       snd_pcm_lib_ioctl,
 576         .hw_params =   snd_p16v_pcm_hw_params_capture,
 577         .hw_free =     snd_p16v_pcm_hw_free_capture,
 578         .prepare =     snd_p16v_pcm_prepare_capture,
 579         .trigger =     snd_p16v_pcm_trigger_capture,
 580         .pointer =     snd_p16v_pcm_pointer_capture,
 581 };
 582
 583
 584 int snd_p16v_free(struct snd_emu10k1 *chip)
 585 {
 586         // release the data
 587         if (chip->p16v_buffer.area) {
 588                 snd_dma_free_pages(&chip->p16v_buffer);
 589                 //snd_printk("period lables free: %p\n", &chip->p16v_buffer);
 590         }
 591         return 0;
 592 }
 593
 594 int __devinit snd_p16v_pcm(struct snd_emu10k1 *emu, int device, struct snd_pcm **rpcm)
 595 {
 596         struct snd_pcm *pcm;
 597         struct snd_pcm_substream *substream;
 598         int err;
 599         int capture=1;
 600
 601         //snd_printk("snd_p16v_pcm called. device=%d\n", device);
 602         emu->p16v_device_offset = device;
 603         if (rpcm)
 604                 *rpcm = NULL;
 605
 606         if ((err = snd_pcm_new(emu->card, "p16v", device, 1, capture, &pcm)) < 0)
 607                 return err;
 608
 609         pcm->private_data = emu;
 610         // Single playback 8 channel device.
 611         // Single capture 2 channel device.
 612         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_p16v_playback_front_ops);
 613         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_p16v_capture_ops);
 614
 615         pcm->info_flags = 0;
 616         pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
 617         strcpy(pcm->name, "p16v");
 618         emu->pcm_p16v = pcm;
 619
 620         for(substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
 621             substream;
 622             substream = substream->next) {
 623                 if ((err = snd_pcm_lib_preallocate_pages(substream,
 624                                                          SNDRV_DMA_TYPE_DEV,
 625                                                          snd_dma_pci_data(emu->pci),
 626                                                          ((65536 - 64) * 8), ((65536 - 64) * 8))) < 0)
 627                         return err;
 628                 //snd_printk("preallocate playback substream: err=%d\n", err);
 629         }
 630
 631         for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream;
 632               substream;
 633               substream = substream->next) {
 634                 if ((err = snd_pcm_lib_preallocate_pages(substream,
 635                                                    SNDRV_DMA_TYPE_DEV,
 636                                                    snd_dma_pci_data(emu->pci),
 637                                                    65536 - 64, 65536 - 64)) < 0)
 638                         return err;
 639                 //snd_printk("preallocate capture substream: err=%d\n", err);
 640         }
 641
 642         if (rpcm)
 643                 *rpcm = pcm;
 644
 645         return 0;
 646 }
 647
 648 static int snd_p16v_volume_info(struct snd_kcontrol *kcontrol,
 649                                 struct snd_ctl_elem_info *uinfo)
 650 {
 651         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 652         uinfo->count = 2;
 653         uinfo->value.integer.min = 0;
 654         uinfo->value.integer.max = 255;
 655         return 0;
 656 }
 657
 658 static int snd_p16v_volume_get(struct snd_kcontrol *kcontrol,
 659                                struct snd_ctl_elem_value *ucontrol)
 660 {
 661         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
 662         int high_low = (kcontrol->private_value >> 8) & 0xff;
 663         int reg = kcontrol->private_value & 0xff;
 664         u32 value;
 665
 666         value = snd_emu10k1_ptr20_read(emu, reg, high_low);
 667         if (high_low) {
 668                 ucontrol->value.integer.value[0] = 0xff - ((value >> 24) & 0xff); /* Left */
 669                 ucontrol->value.integer.value[1] = 0xff - ((value >> 16) & 0xff); /* Right */
 670         } else {
 671                 ucontrol->value.integer.value[0] = 0xff - ((value >> 8) & 0xff); /* Left */
 672                 ucontrol->value.integer.value[1] = 0xff - ((value >> 0) & 0xff); /* Right */
 673         }
 674         return 0;
 675 }
 676
 677 static int snd_p16v_volume_put(struct snd_kcontrol *kcontrol,
 678                                struct snd_ctl_elem_value *ucontrol)
 679 {
 680         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
 681         int high_low = (kcontrol->private_value >> 8) & 0xff;
 682         int reg = kcontrol->private_value & 0xff;
 683         u32 value, oval;
 684
 685         oval = value = snd_emu10k1_ptr20_read(emu, reg, 0);
 686         if (high_low == 1) {
 687                 value &= 0xffff;
 688                 value |= ((0xff - ucontrol->value.integer.value[0]) << 24) |
 689                         ((0xff - ucontrol->value.integer.value[1]) << 16);
 690         } else {
 691                 value &= 0xffff0000;
 692                 value |= ((0xff - ucontrol->value.integer.value[0]) << 8) |
 693                         ((0xff - ucontrol->value.integer.value[1]) );
 694         }
 695         if (value != oval) {
 696                 snd_emu10k1_ptr20_write(emu, reg, 0, value);
 697                 return 1;
 698         }
 699         return 0;
 700 }
 701
 702 static int snd_p16v_capture_source_info(struct snd_kcontrol *kcontrol,
 703                                         struct snd_ctl_elem_info *uinfo)
 704 {
 705         static char *texts[8] = {
 706                 "SPDIF", "I2S", "SRC48", "SRCMulti_SPDIF", "SRCMulti_I2S",
 707                 "CDIF", "FX", "AC97"
 708         };
 709
 710         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 711         uinfo->count = 1;
 712         uinfo->value.enumerated.items = 8;
 713         if (uinfo->value.enumerated.item > 7)
 714                 uinfo->value.enumerated.item = 7;
 715         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
 716         return 0;
 717 }
 718
 719 static int snd_p16v_capture_source_get(struct snd_kcontrol *kcontrol,
 720                                         struct snd_ctl_elem_value *ucontrol)
 721 {
 722         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
 723
 724         ucontrol->value.enumerated.item[0] = emu->p16v_capture_source;
 725         return 0;
 726 }
 727
 728 static int snd_p16v_capture_source_put(struct snd_kcontrol *kcontrol,
 729                                         struct snd_ctl_elem_value *ucontrol)
 730 {
 731         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
 732         unsigned int val;
 733         int change = 0;
 734         u32 mask;
 735         u32 source;
 736
 737         val = ucontrol->value.enumerated.item[0] ;
 738         change = (emu->p16v_capture_source != val);
 739         if (change) {
 740                 emu->p16v_capture_source = val;
 741                 source = (val << 28) | (val << 24) | (val << 20) | (val << 16);
 742                 mask = snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0) & 0xffff;
 743                 snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, source | mask);
 744         }
 745         return change;
 746 }
 747
 748 static int snd_p16v_capture_channel_info(struct snd_kcontrol *kcontrol,
 749                                          struct snd_ctl_elem_info *uinfo)
 750 {
 751         static char *texts[4] = { "0", "1", "2", "3",  };
 752
 753         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 754         uinfo->count = 1;
 755         uinfo->value.enumerated.items = 4;
 756         if (uinfo->value.enumerated.item > 3)
 757                 uinfo->value.enumerated.item = 3;
 758         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
 759         return 0;
 760 }
 761
 762 static int snd_p16v_capture_channel_get(struct snd_kcontrol *kcontrol,
 763                                         struct snd_ctl_elem_value *ucontrol)
 764 {
 765         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
 766
 767         ucontrol->value.enumerated.item[0] = emu->p16v_capture_channel;
 768         return 0;
 769 }
 770
 771 static int snd_p16v_capture_channel_put(struct snd_kcontrol *kcontrol,
 772                                         struct snd_ctl_elem_value *ucontrol)
 773 {
 774         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
 775         unsigned int val;
 776         int change = 0;
 777         u32 tmp;
 778
 779         val = ucontrol->value.enumerated.item[0] ;
 780         change = (emu->p16v_capture_channel != val);
 781         if (change) {
 782                 emu->p16v_capture_channel = val;
 783                 tmp = snd_emu10k1_ptr20_read(emu, CAPTURE_P16V_SOURCE, 0) & 0xfffc;
 784                 snd_emu10k1_ptr20_write(emu, CAPTURE_P16V_SOURCE, 0, tmp | val);
 785         }
 786         return change;
 787 }
 788 static DECLARE_TLV_DB_SCALE(snd_p16v_db_scale1, -5175, 25, 1);
 789
 790 #define P16V_VOL(xname,xreg,xhl) { \
 791         .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 792         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |             \
 793                   SNDRV_CTL_ELEM_ACCESS_TLV_READ,               \
 794         .info = snd_p16v_volume_info, \
 795         .get = snd_p16v_volume_get, \
 796         .put = snd_p16v_volume_put, \
 797         .tlv = { .p = snd_p16v_db_scale1 },     \
 798         .private_value = ((xreg) | ((xhl) << 8)) \
 799 }
 800
 801 static struct snd_kcontrol_new p16v_mixer_controls[] __devinitdata = {
 802         P16V_VOL("HD Analog Front Playback Volume", PLAYBACK_VOLUME_MIXER9, 0),
 803         P16V_VOL("HD Analog Rear Playback Volume", PLAYBACK_VOLUME_MIXER10, 1),
 804         P16V_VOL("HD Analog Center/LFE Playback Volume", PLAYBACK_VOLUME_MIXER9, 1),
 805         P16V_VOL("HD Analog Side Playback Volume", PLAYBACK_VOLUME_MIXER10, 0),
 806         P16V_VOL("HD SPDIF Front Playback Volume", PLAYBACK_VOLUME_MIXER7, 0),
 807         P16V_VOL("HD SPDIF Rear Playback Volume", PLAYBACK_VOLUME_MIXER8, 1),
 808         P16V_VOL("HD SPDIF Center/LFE Playback Volume", PLAYBACK_VOLUME_MIXER7, 1),
 809         P16V_VOL("HD SPDIF Side Playback Volume", PLAYBACK_VOLUME_MIXER8, 0),
 810         {
 811                 .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
 812                 .name =         "HD source Capture",
 813                 .info =         snd_p16v_capture_source_info,
 814                 .get =          snd_p16v_capture_source_get,
 815                 .put =          snd_p16v_capture_source_put
 816         },
 817         {
 818                 .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
 819                 .name =         "HD channel Capture",
 820                 .info =         snd_p16v_capture_channel_info,
 821                 .get =          snd_p16v_capture_channel_get,
 822                 .put =          snd_p16v_capture_channel_put
 823         },
 824 };
 825
 826
 827 int __devinit snd_p16v_mixer(struct snd_emu10k1 *emu)
 828 {
 829         int i, err;
 830         struct snd_card *card = emu->card;
 831
 832         for (i = 0; i < ARRAY_SIZE(p16v_mixer_controls); i++) {
 833                 if ((err = snd_ctl_add(card, snd_ctl_new1(&p16v_mixer_controls[i],
 834                                                           emu))) < 0)
 835                         return err;
 836         }
 837         return 0;
 838 }
 839
 840 #ifdef CONFIG_PM
 841
 842 #define NUM_CHS 1       /* up to 4, but only first channel is used */
 843
 844 int __devinit snd_p16v_alloc_pm_buffer(struct snd_emu10k1 *emu)
 845 {
 846         emu->p16v_saved = vmalloc(NUM_CHS * 4 * 0x80);
 847         if (! emu->p16v_saved)
 848                 return -ENOMEM;
 849         return 0;
 850 }
 851
 852 void snd_p16v_free_pm_buffer(struct snd_emu10k1 *emu)
 853 {
 854         vfree(emu->p16v_saved);
 855 }
 856
 857 void snd_p16v_suspend(struct snd_emu10k1 *emu)
 858 {
 859         int i, ch;
 860         unsigned int *val;
 861
 862         val = emu->p16v_saved;
 863         for (ch = 0; ch < NUM_CHS; ch++)
 864                 for (i = 0; i < 0x80; i++, val++)
 865                         *val = snd_emu10k1_ptr20_read(emu, i, ch);
 866 }
 867
 868 void snd_p16v_resume(struct snd_emu10k1 *emu)
 869 {
 870         int i, ch;
 871         unsigned int *val;
 872
 873         val = emu->p16v_saved;
 874         for (ch = 0; ch < NUM_CHS; ch++)
 875                 for (i = 0; i < 0x80; i++, val++)
 876                         snd_emu10k1_ptr20_write(emu, i, ch, *val);
 877 }
 878 #endif