release/src-rt-6.x/linux/linux-2.6/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 snd_pcm_substream *s;
 437         u32 basic = 0;
 438         u32 inte = 0;
 439         int running = 0;
 440
 441         switch (cmd) {
 442         case SNDRV_PCM_TRIGGER_START:
 443                 running=1;
 444                 break;
 445         case SNDRV_PCM_TRIGGER_STOP:
 446         default:
 447                 running = 0;
 448                 break;
 449         }
 450         snd_pcm_group_for_each_entry(s, substream) {
 451                 runtime = s->runtime;
 452                 epcm = runtime->private_data;
 453                 channel = substream->pcm->device-emu->p16v_device_offset;
 454                 //snd_printk("p16v channel=%d\n",channel);
 455                 epcm->running = running;
 456                 basic |= (0x1<<channel);
 457                 inte |= (INTE2_PLAYBACK_CH_0_LOOP<<channel);
 458                 snd_pcm_trigger_done(s, substream);
 459         }
 460         //snd_printk("basic=0x%x, inte=0x%x\n",basic, inte);
 461
 462         switch (cmd) {
 463         case SNDRV_PCM_TRIGGER_START:
 464                 snd_p16v_intr_enable(emu, inte);
 465                 snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0)| (basic));
 466                 break;
 467         case SNDRV_PCM_TRIGGER_STOP:
 468                 snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0) & ~(basic));
 469                 snd_p16v_intr_disable(emu, inte);
 470                 break;
 471         default:
 472                 result = -EINVAL;
 473                 break;
 474         }
 475         return result;
 476 }
 477
 478 /* trigger_capture callback */
 479 static int snd_p16v_pcm_trigger_capture(struct snd_pcm_substream *substream,
 480                                    int cmd)
 481 {
 482         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 483         struct snd_pcm_runtime *runtime = substream->runtime;
 484         struct snd_emu10k1_pcm *epcm = runtime->private_data;
 485         int channel = 0;
 486         int result = 0;
 487         u32 inte = INTE2_CAPTURE_CH_0_LOOP | INTE2_CAPTURE_CH_0_HALF_LOOP;
 488
 489         switch (cmd) {
 490         case SNDRV_PCM_TRIGGER_START:
 491                 snd_p16v_intr_enable(emu, inte);
 492                 snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0)|(0x100<<channel));
 493                 epcm->running = 1;
 494                 break;
 495         case SNDRV_PCM_TRIGGER_STOP:
 496                 snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0) & ~(0x100<<channel));
 497                 snd_p16v_intr_disable(emu, inte);
 498                 //snd_emu10k1_ptr20_write(emu, EXTENDED_INT_MASK, 0, snd_emu10k1_ptr20_read(emu, EXTENDED_INT_MASK, 0) & ~(0x110000<<channel));
 499                 epcm->running = 0;
 500                 break;
 501         default:
 502                 result = -EINVAL;
 503                 break;
 504         }
 505         return result;
 506 }
 507
 508 /* pointer_playback callback */
 509 static snd_pcm_uframes_t
 510 snd_p16v_pcm_pointer_playback(struct snd_pcm_substream *substream)
 511 {
 512         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 513         struct snd_pcm_runtime *runtime = substream->runtime;
 514         struct snd_emu10k1_pcm *epcm = runtime->private_data;
 515         snd_pcm_uframes_t ptr, ptr1, ptr2,ptr3,ptr4 = 0;
 516         int channel = substream->pcm->device - emu->p16v_device_offset;
 517         if (!epcm->running)
 518                 return 0;
 519
 520         ptr3 = snd_emu10k1_ptr20_read(emu, PLAYBACK_LIST_PTR, channel);
 521         ptr1 = snd_emu10k1_ptr20_read(emu, PLAYBACK_POINTER, channel);
 522         ptr4 = snd_emu10k1_ptr20_read(emu, PLAYBACK_LIST_PTR, channel);
 523         if (ptr3 != ptr4) ptr1 = snd_emu10k1_ptr20_read(emu, PLAYBACK_POINTER, channel);
 524         ptr2 = bytes_to_frames(runtime, ptr1);
 525         ptr2+= (ptr4 >> 3) * runtime->period_size;
 526         ptr=ptr2;
 527         if (ptr >= runtime->buffer_size)
 528                 ptr -= runtime->buffer_size;
 529
 530         return ptr;
 531 }
 532
 533 /* pointer_capture callback */
 534 static snd_pcm_uframes_t
 535 snd_p16v_pcm_pointer_capture(struct snd_pcm_substream *substream)
 536 {
 537         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 538         struct snd_pcm_runtime *runtime = substream->runtime;
 539         struct snd_emu10k1_pcm *epcm = runtime->private_data;
 540         snd_pcm_uframes_t ptr, ptr1, ptr2 = 0;
 541         int channel = 0;
 542
 543         if (!epcm->running)
 544                 return 0;
 545
 546         ptr1 = snd_emu10k1_ptr20_read(emu, CAPTURE_POINTER, channel);
 547         ptr2 = bytes_to_frames(runtime, ptr1);
 548         ptr=ptr2;
 549         if (ptr >= runtime->buffer_size) {
 550                 ptr -= runtime->buffer_size;
 551                 printk(KERN_WARNING "buffer capture limited!\n");
 552         }
 553         //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);
 554
 555         return ptr;
 556 }
 557
 558 /* operators */
 559 static struct snd_pcm_ops snd_p16v_playback_front_ops = {
 560         .open =        snd_p16v_pcm_open_playback_front,
 561         .close =       snd_p16v_pcm_close_playback,
 562         .ioctl =       snd_pcm_lib_ioctl,
 563         .hw_params =   snd_p16v_pcm_hw_params_playback,
 564         .hw_free =     snd_p16v_pcm_hw_free_playback,
 565         .prepare =     snd_p16v_pcm_prepare_playback,
 566         .trigger =     snd_p16v_pcm_trigger_playback,
 567         .pointer =     snd_p16v_pcm_pointer_playback,
 568 };
 569
 570 static struct snd_pcm_ops snd_p16v_capture_ops = {
 571         .open =        snd_p16v_pcm_open_capture,
 572         .close =       snd_p16v_pcm_close_capture,
 573         .ioctl =       snd_pcm_lib_ioctl,
 574         .hw_params =   snd_p16v_pcm_hw_params_capture,
 575         .hw_free =     snd_p16v_pcm_hw_free_capture,
 576         .prepare =     snd_p16v_pcm_prepare_capture,
 577         .trigger =     snd_p16v_pcm_trigger_capture,
 578         .pointer =     snd_p16v_pcm_pointer_capture,
 579 };
 580
 581
 582 int snd_p16v_free(struct snd_emu10k1 *chip)
 583 {
 584         // release the data
 585         if (chip->p16v_buffer.area) {
 586                 snd_dma_free_pages(&chip->p16v_buffer);
 587                 //snd_printk("period lables free: %p\n", &chip->p16v_buffer);
 588         }
 589         return 0;
 590 }
 591
 592 int __devinit snd_p16v_pcm(struct snd_emu10k1 *emu, int device, struct snd_pcm **rpcm)
 593 {
 594         struct snd_pcm *pcm;
 595         struct snd_pcm_substream *substream;
 596         int err;
 597         int capture=1;
 598
 599         //snd_printk("snd_p16v_pcm called. device=%d\n", device);
 600         emu->p16v_device_offset = device;
 601         if (rpcm)
 602                 *rpcm = NULL;
 603
 604         if ((err = snd_pcm_new(emu->card, "p16v", device, 1, capture, &pcm)) < 0)
 605                 return err;
 606
 607         pcm->private_data = emu;
 608         // Single playback 8 channel device.
 609         // Single capture 2 channel device.
 610         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_p16v_playback_front_ops);
 611         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_p16v_capture_ops);
 612
 613         pcm->info_flags = 0;
 614         pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
 615         strcpy(pcm->name, "p16v");
 616         emu->pcm_p16v = pcm;
 617
 618         for(substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
 619             substream;
 620             substream = substream->next) {
 621                 if ((err = snd_pcm_lib_preallocate_pages(substream,
 622                                                          SNDRV_DMA_TYPE_DEV,
 623                                                          snd_dma_pci_data(emu->pci),
 624                                                          ((65536 - 64) * 8), ((65536 - 64) * 8))) < 0)
 625                         return err;
 626                 //snd_printk("preallocate playback substream: err=%d\n", err);
 627         }
 628
 629         for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream;
 630               substream;
 631               substream = substream->next) {
 632                 if ((err = snd_pcm_lib_preallocate_pages(substream,
 633                                                    SNDRV_DMA_TYPE_DEV,
 634                                                    snd_dma_pci_data(emu->pci),
 635                                                    65536 - 64, 65536 - 64)) < 0)
 636                         return err;
 637                 //snd_printk("preallocate capture substream: err=%d\n", err);
 638         }
 639
 640         if (rpcm)
 641                 *rpcm = pcm;
 642
 643         return 0;
 644 }
 645
 646 static int snd_p16v_volume_info(struct snd_kcontrol *kcontrol,
 647                                 struct snd_ctl_elem_info *uinfo)
 648 {
 649         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 650         uinfo->count = 2;
 651         uinfo->value.integer.min = 0;
 652         uinfo->value.integer.max = 255;
 653         return 0;
 654 }
 655
 656 static int snd_p16v_volume_get(struct snd_kcontrol *kcontrol,
 657                                struct snd_ctl_elem_value *ucontrol)
 658 {
 659         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
 660         int high_low = (kcontrol->private_value >> 8) & 0xff;
 661         int reg = kcontrol->private_value & 0xff;
 662         u32 value;
 663
 664         value = snd_emu10k1_ptr20_read(emu, reg, high_low);
 665         if (high_low) {
 666                 ucontrol->value.integer.value[0] = 0xff - ((value >> 24) & 0xff); /* Left */
 667                 ucontrol->value.integer.value[1] = 0xff - ((value >> 16) & 0xff); /* Right */
 668         } else {
 669                 ucontrol->value.integer.value[0] = 0xff - ((value >> 8) & 0xff); /* Left */
 670                 ucontrol->value.integer.value[1] = 0xff - ((value >> 0) & 0xff); /* Right */
 671         }
 672         return 0;
 673 }
 674
 675 static int snd_p16v_volume_put(struct snd_kcontrol *kcontrol,
 676                                struct snd_ctl_elem_value *ucontrol)
 677 {
 678         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
 679         int high_low = (kcontrol->private_value >> 8) & 0xff;
 680         int reg = kcontrol->private_value & 0xff;
 681         u32 value, oval;
 682
 683         oval = value = snd_emu10k1_ptr20_read(emu, reg, 0);
 684         if (high_low == 1) {
 685                 value &= 0xffff;
 686                 value |= ((0xff - ucontrol->value.integer.value[0]) << 24) |
 687                         ((0xff - ucontrol->value.integer.value[1]) << 16);
 688         } else {
 689                 value &= 0xffff0000;
 690                 value |= ((0xff - ucontrol->value.integer.value[0]) << 8) |
 691                         ((0xff - ucontrol->value.integer.value[1]) );
 692         }
 693         if (value != oval) {
 694                 snd_emu10k1_ptr20_write(emu, reg, 0, value);
 695                 return 1;
 696         }
 697         return 0;
 698 }
 699
 700 static int snd_p16v_capture_source_info(struct snd_kcontrol *kcontrol,
 701                                         struct snd_ctl_elem_info *uinfo)
 702 {
 703         static char *texts[8] = {
 704                 "SPDIF", "I2S", "SRC48", "SRCMulti_SPDIF", "SRCMulti_I2S",
 705                 "CDIF", "FX", "AC97"
 706         };
 707
 708         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 709         uinfo->count = 1;
 710         uinfo->value.enumerated.items = 8;
 711         if (uinfo->value.enumerated.item > 7)
 712                 uinfo->value.enumerated.item = 7;
 713         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
 714         return 0;
 715 }
 716
 717 static int snd_p16v_capture_source_get(struct snd_kcontrol *kcontrol,
 718                                         struct snd_ctl_elem_value *ucontrol)
 719 {
 720         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
 721
 722         ucontrol->value.enumerated.item[0] = emu->p16v_capture_source;
 723         return 0;
 724 }
 725
 726 static int snd_p16v_capture_source_put(struct snd_kcontrol *kcontrol,
 727                                         struct snd_ctl_elem_value *ucontrol)
 728 {
 729         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
 730         unsigned int val;
 731         int change = 0;
 732         u32 mask;
 733         u32 source;
 734
 735         val = ucontrol->value.enumerated.item[0] ;
 736         change = (emu->p16v_capture_source != val);
 737         if (change) {
 738                 emu->p16v_capture_source = val;
 739                 source = (val << 28) | (val << 24) | (val << 20) | (val << 16);
 740                 mask = snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0) & 0xffff;
 741                 snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, source | mask);
 742         }
 743         return change;
 744 }
 745
 746 static int snd_p16v_capture_channel_info(struct snd_kcontrol *kcontrol,
 747                                          struct snd_ctl_elem_info *uinfo)
 748 {
 749         static char *texts[4] = { "0", "1", "2", "3",  };
 750
 751         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 752         uinfo->count = 1;
 753         uinfo->value.enumerated.items = 4;
 754         if (uinfo->value.enumerated.item > 3)
 755                 uinfo->value.enumerated.item = 3;
 756         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
 757         return 0;
 758 }
 759
 760 static int snd_p16v_capture_channel_get(struct snd_kcontrol *kcontrol,
 761                                         struct snd_ctl_elem_value *ucontrol)
 762 {
 763         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
 764
 765         ucontrol->value.enumerated.item[0] = emu->p16v_capture_channel;
 766         return 0;
 767 }
 768
 769 static int snd_p16v_capture_channel_put(struct snd_kcontrol *kcontrol,
 770                                         struct snd_ctl_elem_value *ucontrol)
 771 {
 772         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
 773         unsigned int val;
 774         int change = 0;
 775         u32 tmp;
 776
 777         val = ucontrol->value.enumerated.item[0] ;
 778         change = (emu->p16v_capture_channel != val);
 779         if (change) {
 780                 emu->p16v_capture_channel = val;
 781                 tmp = snd_emu10k1_ptr20_read(emu, CAPTURE_P16V_SOURCE, 0) & 0xfffc;
 782                 snd_emu10k1_ptr20_write(emu, CAPTURE_P16V_SOURCE, 0, tmp | val);
 783         }
 784         return change;
 785 }
 786 static const DECLARE_TLV_DB_SCALE(snd_p16v_db_scale1, -5175, 25, 1);
 787
 788 #define P16V_VOL(xname,xreg,xhl) { \
 789         .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 790         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |             \
 791                   SNDRV_CTL_ELEM_ACCESS_TLV_READ,               \
 792         .info = snd_p16v_volume_info, \
 793         .get = snd_p16v_volume_get, \
 794         .put = snd_p16v_volume_put, \
 795         .tlv = { .p = snd_p16v_db_scale1 },     \
 796         .private_value = ((xreg) | ((xhl) << 8)) \
 797 }
 798
 799 static struct snd_kcontrol_new p16v_mixer_controls[] __devinitdata = {
 800         P16V_VOL("HD Analog Front Playback Volume", PLAYBACK_VOLUME_MIXER9, 0),
 801         P16V_VOL("HD Analog Rear Playback Volume", PLAYBACK_VOLUME_MIXER10, 1),
 802         P16V_VOL("HD Analog Center/LFE Playback Volume", PLAYBACK_VOLUME_MIXER9, 1),
 803         P16V_VOL("HD Analog Side Playback Volume", PLAYBACK_VOLUME_MIXER10, 0),
 804         P16V_VOL("HD SPDIF Front Playback Volume", PLAYBACK_VOLUME_MIXER7, 0),
 805         P16V_VOL("HD SPDIF Rear Playback Volume", PLAYBACK_VOLUME_MIXER8, 1),
 806         P16V_VOL("HD SPDIF Center/LFE Playback Volume", PLAYBACK_VOLUME_MIXER7, 1),
 807         P16V_VOL("HD SPDIF Side Playback Volume", PLAYBACK_VOLUME_MIXER8, 0),
 808         {
 809                 .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
 810                 .name =         "HD source Capture",
 811                 .info =         snd_p16v_capture_source_info,
 812                 .get =          snd_p16v_capture_source_get,
 813                 .put =          snd_p16v_capture_source_put
 814         },
 815         {
 816                 .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
 817                 .name =         "HD channel Capture",
 818                 .info =         snd_p16v_capture_channel_info,
 819                 .get =          snd_p16v_capture_channel_get,
 820                 .put =          snd_p16v_capture_channel_put
 821         },
 822 };
 823
 824
 825 int __devinit snd_p16v_mixer(struct snd_emu10k1 *emu)
 826 {
 827         int i, err;
 828         struct snd_card *card = emu->card;
 829
 830         for (i = 0; i < ARRAY_SIZE(p16v_mixer_controls); i++) {
 831                 if ((err = snd_ctl_add(card, snd_ctl_new1(&p16v_mixer_controls[i],
 832                                                           emu))) < 0)
 833                         return err;
 834         }
 835         return 0;
 836 }
 837
 838 #ifdef CONFIG_PM
 839
 840 #define NUM_CHS 1       /* up to 4, but only first channel is used */
 841
 842 int __devinit snd_p16v_alloc_pm_buffer(struct snd_emu10k1 *emu)
 843 {
 844         emu->p16v_saved = vmalloc(NUM_CHS * 4 * 0x80);
 845         if (! emu->p16v_saved)
 846                 return -ENOMEM;
 847         return 0;
 848 }
 849
 850 void snd_p16v_free_pm_buffer(struct snd_emu10k1 *emu)
 851 {
 852         vfree(emu->p16v_saved);
 853 }
 854
 855 void snd_p16v_suspend(struct snd_emu10k1 *emu)
 856 {
 857         int i, ch;
 858         unsigned int *val;
 859
 860         val = emu->p16v_saved;
 861         for (ch = 0; ch < NUM_CHS; ch++)
 862                 for (i = 0; i < 0x80; i++, val++)
 863                         *val = snd_emu10k1_ptr20_read(emu, i, ch);
 864 }
 865
 866 void snd_p16v_resume(struct snd_emu10k1 *emu)
 867 {
 868         int i, ch;
 869         unsigned int *val;
 870
 871         val = emu->p16v_saved;
 872         for (ch = 0; ch < NUM_CHS; ch++)
 873                 for (i = 0; i < 0x80; i++, val++)
 874                         snd_emu10k1_ptr20_write(emu, i, ch, *val);
 875 }
 876 #endif