linux/sound/pci/emu10k1/p16v.c
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   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 initially 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 */
 125static 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
 146static 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
 166static 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(KERN_DEBUG "epcm free: %p\n", epcm); */
 172                kfree(epcm);
 173        }
 174}
 175
 176/* open_playback callback */
 177static 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(KERN_DEBUG "epcm kcalloc: %p\n", epcm); */
 187
 188        if (epcm == NULL)
 189                return -ENOMEM;
 190        epcm->emu = emu;
 191        epcm->substream = substream;
 192        /*
 193        snd_printk(KERN_DEBUG "epcm device=%d, channel_id=%d\n",
 194                   substream->pcm->device, channel_id);
 195        */
 196        runtime->private_data = epcm;
 197        runtime->private_free = snd_p16v_pcm_free_substream;
 198  
 199        runtime->hw = snd_p16v_playback_hw;
 200
 201        channel->emu = emu;
 202        channel->number = channel_id;
 203
 204        channel->use=1;
 205#if 0 /* debug */
 206        snd_printk(KERN_DEBUG
 207                   "p16v: open channel_id=%d, channel=%p, use=0x%x\n",
 208                   channel_id, channel, channel->use);
 209        printk(KERN_DEBUG "open:channel_id=%d, chip=%p, channel=%p\n",
 210               channel_id, chip, channel);
 211#endif /* debug */
 212        /* channel->interrupt = snd_p16v_pcm_channel_interrupt; */
 213        channel->epcm = epcm;
 214        if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 215                return err;
 216
 217        runtime->sync.id32[0] = substream->pcm->card->number;
 218        runtime->sync.id32[1] = 'P';
 219        runtime->sync.id32[2] = 16;
 220        runtime->sync.id32[3] = 'V';
 221
 222        return 0;
 223}
 224/* open_capture callback */
 225static int snd_p16v_pcm_open_capture_channel(struct snd_pcm_substream *substream, int channel_id)
 226{
 227        struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 228        struct snd_emu10k1_voice *channel = &(emu->p16v_capture_voice);
 229        struct snd_emu10k1_pcm *epcm;
 230        struct snd_pcm_runtime *runtime = substream->runtime;
 231        int err;
 232
 233        epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
 234        /* snd_printk(KERN_DEBUG "epcm kcalloc: %p\n", epcm); */
 235
 236        if (epcm == NULL)
 237                return -ENOMEM;
 238        epcm->emu = emu;
 239        epcm->substream = substream;
 240        /*
 241        snd_printk(KERN_DEBUG "epcm device=%d, channel_id=%d\n",
 242                   substream->pcm->device, channel_id);
 243        */
 244        runtime->private_data = epcm;
 245        runtime->private_free = snd_p16v_pcm_free_substream;
 246  
 247        runtime->hw = snd_p16v_capture_hw;
 248
 249        channel->emu = emu;
 250        channel->number = channel_id;
 251
 252        channel->use=1;
 253#if 0 /* debug */
 254        snd_printk(KERN_DEBUG
 255                   "p16v: open channel_id=%d, channel=%p, use=0x%x\n",
 256                   channel_id, channel, channel->use);
 257        printk(KERN_DEBUG "open:channel_id=%d, chip=%p, channel=%p\n",
 258               channel_id, chip, channel);
 259#endif /* debug */
 260        /* channel->interrupt = snd_p16v_pcm_channel_interrupt; */
 261        channel->epcm = epcm;
 262        if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 263                return err;
 264
 265        return 0;
 266}
 267
 268
 269/* close callback */
 270static int snd_p16v_pcm_close_playback(struct snd_pcm_substream *substream)
 271{
 272        struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 273        //struct snd_pcm_runtime *runtime = substream->runtime;
 274        //struct snd_emu10k1_pcm *epcm = runtime->private_data;
 275        emu->p16v_voices[substream->pcm->device - emu->p16v_device_offset].use = 0;
 276        /* FIXME: maybe zero others */
 277        return 0;
 278}
 279
 280/* close callback */
 281static int snd_p16v_pcm_close_capture(struct snd_pcm_substream *substream)
 282{
 283        struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 284        //struct snd_pcm_runtime *runtime = substream->runtime;
 285        //struct snd_emu10k1_pcm *epcm = runtime->private_data;
 286        emu->p16v_capture_voice.use = 0;
 287        /* FIXME: maybe zero others */
 288        return 0;
 289}
 290
 291static int snd_p16v_pcm_open_playback_front(struct snd_pcm_substream *substream)
 292{
 293        return snd_p16v_pcm_open_playback_channel(substream, PCM_FRONT_CHANNEL);
 294}
 295
 296static int snd_p16v_pcm_open_capture(struct snd_pcm_substream *substream)
 297{
 298        // Only using channel 0 for now, but the card has 2 channels.
 299        return snd_p16v_pcm_open_capture_channel(substream, 0);
 300}
 301
 302/* hw_params callback */
 303static int snd_p16v_pcm_hw_params_playback(struct snd_pcm_substream *substream,
 304                                      struct snd_pcm_hw_params *hw_params)
 305{
 306        int result;
 307        result = snd_pcm_lib_malloc_pages(substream,
 308                                        params_buffer_bytes(hw_params));
 309        return result;
 310}
 311
 312/* hw_params callback */
 313static int snd_p16v_pcm_hw_params_capture(struct snd_pcm_substream *substream,
 314                                      struct snd_pcm_hw_params *hw_params)
 315{
 316        int result;
 317        result = snd_pcm_lib_malloc_pages(substream,
 318                                        params_buffer_bytes(hw_params));
 319        return result;
 320}
 321
 322
 323/* hw_free callback */
 324static int snd_p16v_pcm_hw_free_playback(struct snd_pcm_substream *substream)
 325{
 326        int result;
 327        result = snd_pcm_lib_free_pages(substream);
 328        return result;
 329}
 330
 331/* hw_free callback */
 332static int snd_p16v_pcm_hw_free_capture(struct snd_pcm_substream *substream)
 333{
 334        int result;
 335        result = snd_pcm_lib_free_pages(substream);
 336        return result;
 337}
 338
 339
 340/* prepare playback callback */
 341static int snd_p16v_pcm_prepare_playback(struct snd_pcm_substream *substream)
 342{
 343        struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 344        struct snd_pcm_runtime *runtime = substream->runtime;
 345        int channel = substream->pcm->device - emu->p16v_device_offset;
 346        u32 *table_base = (u32 *)(emu->p16v_buffer.area+(8*16*channel));
 347        u32 period_size_bytes = frames_to_bytes(runtime, runtime->period_size);
 348        int i;
 349        u32 tmp;
 350        
 351#if 0 /* debug */
 352        snd_printk(KERN_DEBUG "prepare:channel_number=%d, rate=%d, "
 353                   "format=0x%x, channels=%d, buffer_size=%ld, "
 354                   "period_size=%ld, periods=%u, frames_to_bytes=%d\n",
 355                   channel, runtime->rate, runtime->format, runtime->channels,
 356                   runtime->buffer_size, runtime->period_size,
 357                   runtime->periods, frames_to_bytes(runtime, 1));
 358        snd_printk(KERN_DEBUG "dma_addr=%x, dma_area=%p, table_base=%p\n",
 359                   runtime->dma_addr, runtime->dma_area, table_base);
 360        snd_printk(KERN_DEBUG "dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",
 361                   emu->p16v_buffer.addr, emu->p16v_buffer.area,
 362                   emu->p16v_buffer.bytes);
 363#endif /* debug */
 364        tmp = snd_emu10k1_ptr_read(emu, A_SPDIF_SAMPLERATE, channel);
 365        switch (runtime->rate) {
 366        case 44100:
 367          snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0xe0e0) | 0x8080);
 368          break;
 369        case 96000:
 370          snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0xe0e0) | 0x4040);
 371          break;
 372        case 192000:
 373          snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0xe0e0) | 0x2020);
 374          break;
 375        case 48000:
 376        default:
 377          snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0xe0e0) | 0x0000);
 378          break;
 379        }
 380        /* FIXME: Check emu->buffer.size before actually writing to it. */
 381        for(i = 0; i < runtime->periods; i++) {
 382                table_base[i*2]=runtime->dma_addr+(i*period_size_bytes);
 383                table_base[(i*2)+1]=period_size_bytes<<16;
 384        }
 385 
 386        snd_emu10k1_ptr20_write(emu, PLAYBACK_LIST_ADDR, channel, emu->p16v_buffer.addr+(8*16*channel));
 387        snd_emu10k1_ptr20_write(emu, PLAYBACK_LIST_SIZE, channel, (runtime->periods - 1) << 19);
 388        snd_emu10k1_ptr20_write(emu, PLAYBACK_LIST_PTR, channel, 0);
 389        snd_emu10k1_ptr20_write(emu, PLAYBACK_DMA_ADDR, channel, runtime->dma_addr);
 390        //snd_emu10k1_ptr20_write(emu, PLAYBACK_PERIOD_SIZE, channel, frames_to_bytes(runtime, runtime->period_size)<<16); // buffer size in bytes
 391        snd_emu10k1_ptr20_write(emu, PLAYBACK_PERIOD_SIZE, channel, 0); // buffer size in bytes
 392        snd_emu10k1_ptr20_write(emu, PLAYBACK_POINTER, channel, 0);
 393        snd_emu10k1_ptr20_write(emu, 0x07, channel, 0x0);
 394        snd_emu10k1_ptr20_write(emu, 0x08, channel, 0);
 395
 396        return 0;
 397}
 398
 399/* prepare capture callback */
 400static int snd_p16v_pcm_prepare_capture(struct snd_pcm_substream *substream)
 401{
 402        struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 403        struct snd_pcm_runtime *runtime = substream->runtime;
 404        int channel = substream->pcm->device - emu->p16v_device_offset;
 405        u32 tmp;
 406
 407        /*
 408        printk(KERN_DEBUG "prepare capture:channel_number=%d, rate=%d, "
 409               "format=0x%x, channels=%d, buffer_size=%ld, period_size=%ld, "
 410               "frames_to_bytes=%d\n",
 411               channel, runtime->rate, runtime->format, runtime->channels,
 412               runtime->buffer_size, runtime->period_size,
 413               frames_to_bytes(runtime, 1));
 414        */
 415        tmp = snd_emu10k1_ptr_read(emu, A_SPDIF_SAMPLERATE, channel);
 416        switch (runtime->rate) {
 417        case 44100:
 418          snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0x0e00) | 0x0800);
 419          break;
 420        case 96000:
 421          snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0x0e00) | 0x0400);
 422          break;
 423        case 192000:
 424          snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0x0e00) | 0x0200);
 425          break;
 426        case 48000:
 427        default:
 428          snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0x0e00) | 0x0000);
 429          break;
 430        }
 431        /* FIXME: Check emu->buffer.size before actually writing to it. */
 432        snd_emu10k1_ptr20_write(emu, 0x13, channel, 0);
 433        snd_emu10k1_ptr20_write(emu, CAPTURE_DMA_ADDR, channel, runtime->dma_addr);
 434        snd_emu10k1_ptr20_write(emu, CAPTURE_BUFFER_SIZE, channel, frames_to_bytes(runtime, runtime->buffer_size) << 16); // buffer size in bytes
 435        snd_emu10k1_ptr20_write(emu, CAPTURE_POINTER, channel, 0);
 436        //snd_emu10k1_ptr20_write(emu, CAPTURE_SOURCE, 0x0, 0x333300e4); /* Select MIC or Line in */
 437        //snd_emu10k1_ptr20_write(emu, EXTENDED_INT_MASK, 0, snd_emu10k1_ptr20_read(emu, EXTENDED_INT_MASK, 0) | (0x110000<<channel));
 438
 439        return 0;
 440}
 441
 442static void snd_p16v_intr_enable(struct snd_emu10k1 *emu, unsigned int intrenb)
 443{
 444        unsigned long flags;
 445        unsigned int enable;
 446
 447        spin_lock_irqsave(&emu->emu_lock, flags);
 448        enable = inl(emu->port + INTE2) | intrenb;
 449        outl(enable, emu->port + INTE2);
 450        spin_unlock_irqrestore(&emu->emu_lock, flags);
 451}
 452
 453static void snd_p16v_intr_disable(struct snd_emu10k1 *emu, unsigned int intrenb)
 454{
 455        unsigned long flags;
 456        unsigned int disable;
 457
 458        spin_lock_irqsave(&emu->emu_lock, flags);
 459        disable = inl(emu->port + INTE2) & (~intrenb);
 460        outl(disable, emu->port + INTE2);
 461        spin_unlock_irqrestore(&emu->emu_lock, flags);
 462}
 463
 464/* trigger_playback callback */
 465static int snd_p16v_pcm_trigger_playback(struct snd_pcm_substream *substream,
 466                                    int cmd)
 467{
 468        struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 469        struct snd_pcm_runtime *runtime;
 470        struct snd_emu10k1_pcm *epcm;
 471        int channel;
 472        int result = 0;
 473        struct snd_pcm_substream *s;
 474        u32 basic = 0;
 475        u32 inte = 0;
 476        int running = 0;
 477
 478        switch (cmd) {
 479        case SNDRV_PCM_TRIGGER_START:
 480                running=1;
 481                break;
 482        case SNDRV_PCM_TRIGGER_STOP:
 483        default:
 484                running = 0;
 485                break;
 486        }
 487        snd_pcm_group_for_each_entry(s, substream) {
 488                if (snd_pcm_substream_chip(s) != emu ||
 489                    s->stream != SNDRV_PCM_STREAM_PLAYBACK)
 490                        continue;
 491                runtime = s->runtime;
 492                epcm = runtime->private_data;
 493                channel = substream->pcm->device-emu->p16v_device_offset;
 494                /* snd_printk(KERN_DEBUG "p16v channel=%d\n", channel); */
 495                epcm->running = running;
 496                basic |= (0x1<<channel);
 497                inte |= (INTE2_PLAYBACK_CH_0_LOOP<<channel);
 498                snd_pcm_trigger_done(s, substream);
 499        }
 500        /* snd_printk(KERN_DEBUG "basic=0x%x, inte=0x%x\n", basic, inte); */
 501
 502        switch (cmd) {
 503        case SNDRV_PCM_TRIGGER_START:
 504                snd_p16v_intr_enable(emu, inte);
 505                snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0)| (basic));
 506                break;
 507        case SNDRV_PCM_TRIGGER_STOP:
 508                snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0) & ~(basic));
 509                snd_p16v_intr_disable(emu, inte);
 510                break;
 511        default:
 512                result = -EINVAL;
 513                break;
 514        }
 515        return result;
 516}
 517
 518/* trigger_capture callback */
 519static int snd_p16v_pcm_trigger_capture(struct snd_pcm_substream *substream,
 520                                   int cmd)
 521{
 522        struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 523        struct snd_pcm_runtime *runtime = substream->runtime;
 524        struct snd_emu10k1_pcm *epcm = runtime->private_data;
 525        int channel = 0;
 526        int result = 0;
 527        u32 inte = INTE2_CAPTURE_CH_0_LOOP | INTE2_CAPTURE_CH_0_HALF_LOOP;
 528
 529        switch (cmd) {
 530        case SNDRV_PCM_TRIGGER_START:
 531                snd_p16v_intr_enable(emu, inte);
 532                snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0)|(0x100<<channel));
 533                epcm->running = 1;
 534                break;
 535        case SNDRV_PCM_TRIGGER_STOP:
 536                snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0) & ~(0x100<<channel));
 537                snd_p16v_intr_disable(emu, inte);
 538                //snd_emu10k1_ptr20_write(emu, EXTENDED_INT_MASK, 0, snd_emu10k1_ptr20_read(emu, EXTENDED_INT_MASK, 0) & ~(0x110000<<channel));
 539                epcm->running = 0;
 540                break;
 541        default:
 542                result = -EINVAL;
 543                break;
 544        }
 545        return result;
 546}
 547
 548/* pointer_playback callback */
 549static snd_pcm_uframes_t
 550snd_p16v_pcm_pointer_playback(struct snd_pcm_substream *substream)
 551{
 552        struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 553        struct snd_pcm_runtime *runtime = substream->runtime;
 554        struct snd_emu10k1_pcm *epcm = runtime->private_data;
 555        snd_pcm_uframes_t ptr, ptr1, ptr2,ptr3,ptr4 = 0;
 556        int channel = substream->pcm->device - emu->p16v_device_offset;
 557        if (!epcm->running)
 558                return 0;
 559
 560        ptr3 = snd_emu10k1_ptr20_read(emu, PLAYBACK_LIST_PTR, channel);
 561        ptr1 = snd_emu10k1_ptr20_read(emu, PLAYBACK_POINTER, channel);
 562        ptr4 = snd_emu10k1_ptr20_read(emu, PLAYBACK_LIST_PTR, channel);
 563        if (ptr3 != ptr4) ptr1 = snd_emu10k1_ptr20_read(emu, PLAYBACK_POINTER, channel);
 564        ptr2 = bytes_to_frames(runtime, ptr1);
 565        ptr2+= (ptr4 >> 3) * runtime->period_size;
 566        ptr=ptr2;
 567        if (ptr >= runtime->buffer_size)
 568                ptr -= runtime->buffer_size;
 569
 570        return ptr;
 571}
 572
 573/* pointer_capture callback */
 574static snd_pcm_uframes_t
 575snd_p16v_pcm_pointer_capture(struct snd_pcm_substream *substream)
 576{
 577        struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 578        struct snd_pcm_runtime *runtime = substream->runtime;
 579        struct snd_emu10k1_pcm *epcm = runtime->private_data;
 580        snd_pcm_uframes_t ptr, ptr1, ptr2 = 0;
 581        int channel = 0;
 582
 583        if (!epcm->running)
 584                return 0;
 585
 586        ptr1 = snd_emu10k1_ptr20_read(emu, CAPTURE_POINTER, channel);
 587        ptr2 = bytes_to_frames(runtime, ptr1);
 588        ptr=ptr2;
 589        if (ptr >= runtime->buffer_size) {
 590                ptr -= runtime->buffer_size;
 591                printk(KERN_WARNING "buffer capture limited!\n");
 592        }
 593        /*
 594        printk(KERN_DEBUG "ptr1 = 0x%lx, ptr2=0x%lx, ptr=0x%lx, "
 595               "buffer_size = 0x%x, period_size = 0x%x, bits=%d, rate=%d\n",
 596               ptr1, ptr2, ptr, (int)runtime->buffer_size,
 597               (int)runtime->period_size, (int)runtime->frame_bits,
 598               (int)runtime->rate);
 599        */
 600        return ptr;
 601}
 602
 603/* operators */
 604static struct snd_pcm_ops snd_p16v_playback_front_ops = {
 605        .open =        snd_p16v_pcm_open_playback_front,
 606        .close =       snd_p16v_pcm_close_playback,
 607        .ioctl =       snd_pcm_lib_ioctl,
 608        .hw_params =   snd_p16v_pcm_hw_params_playback,
 609        .hw_free =     snd_p16v_pcm_hw_free_playback,
 610        .prepare =     snd_p16v_pcm_prepare_playback,
 611        .trigger =     snd_p16v_pcm_trigger_playback,
 612        .pointer =     snd_p16v_pcm_pointer_playback,
 613};
 614
 615static struct snd_pcm_ops snd_p16v_capture_ops = {
 616        .open =        snd_p16v_pcm_open_capture,
 617        .close =       snd_p16v_pcm_close_capture,
 618        .ioctl =       snd_pcm_lib_ioctl,
 619        .hw_params =   snd_p16v_pcm_hw_params_capture,
 620        .hw_free =     snd_p16v_pcm_hw_free_capture,
 621        .prepare =     snd_p16v_pcm_prepare_capture,
 622        .trigger =     snd_p16v_pcm_trigger_capture,
 623        .pointer =     snd_p16v_pcm_pointer_capture,
 624};
 625
 626
 627int snd_p16v_free(struct snd_emu10k1 *chip)
 628{
 629        // release the data
 630        if (chip->p16v_buffer.area) {
 631                snd_dma_free_pages(&chip->p16v_buffer);
 632                /*
 633                snd_printk(KERN_DEBUG "period lables free: %p\n",
 634                           &chip->p16v_buffer);
 635                */
 636        }
 637        return 0;
 638}
 639
 640int __devinit snd_p16v_pcm(struct snd_emu10k1 *emu, int device, struct snd_pcm **rpcm)
 641{
 642        struct snd_pcm *pcm;
 643        struct snd_pcm_substream *substream;
 644        int err;
 645        int capture=1;
 646  
 647        /* snd_printk(KERN_DEBUG "snd_p16v_pcm called. device=%d\n", device); */
 648        emu->p16v_device_offset = device;
 649        if (rpcm)
 650                *rpcm = NULL;
 651
 652        if ((err = snd_pcm_new(emu->card, "p16v", device, 1, capture, &pcm)) < 0)
 653                return err;
 654  
 655        pcm->private_data = emu;
 656        // Single playback 8 channel device.
 657        // Single capture 2 channel device.
 658        snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_p16v_playback_front_ops);
 659        snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_p16v_capture_ops);
 660
 661        pcm->info_flags = 0;
 662        pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
 663        strcpy(pcm->name, "p16v");
 664        emu->pcm_p16v = pcm;
 665
 666        for(substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; 
 667            substream; 
 668            substream = substream->next) {
 669                if ((err = snd_pcm_lib_preallocate_pages(substream, 
 670                                                         SNDRV_DMA_TYPE_DEV, 
 671                                                         snd_dma_pci_data(emu->pci), 
 672                                                         ((65536 - 64) * 8), ((65536 - 64) * 8))) < 0) 
 673                        return err;
 674                /*
 675                snd_printk(KERN_DEBUG
 676                           "preallocate playback substream: err=%d\n", err);
 677                */
 678        }
 679
 680        for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream; 
 681              substream; 
 682              substream = substream->next) {
 683                if ((err = snd_pcm_lib_preallocate_pages(substream, 
 684                                                   SNDRV_DMA_TYPE_DEV, 
 685                                                   snd_dma_pci_data(emu->pci), 
 686                                                   65536 - 64, 65536 - 64)) < 0)
 687                        return err;
 688                /*
 689                snd_printk(KERN_DEBUG
 690                           "preallocate capture substream: err=%d\n", err);
 691                */
 692        }
 693  
 694        if (rpcm)
 695                *rpcm = pcm;
 696  
 697        return 0;
 698}
 699
 700static int snd_p16v_volume_info(struct snd_kcontrol *kcontrol,
 701                                struct snd_ctl_elem_info *uinfo)
 702{
 703        uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 704        uinfo->count = 2;
 705        uinfo->value.integer.min = 0;
 706        uinfo->value.integer.max = 255;
 707        return 0;
 708}
 709
 710static int snd_p16v_volume_get(struct snd_kcontrol *kcontrol,
 711                               struct snd_ctl_elem_value *ucontrol)
 712{
 713        struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
 714        int high_low = (kcontrol->private_value >> 8) & 0xff;
 715        int reg = kcontrol->private_value & 0xff;
 716        u32 value;
 717
 718        value = snd_emu10k1_ptr20_read(emu, reg, high_low);
 719        if (high_low) {
 720                ucontrol->value.integer.value[0] = 0xff - ((value >> 24) & 0xff); /* Left */
 721                ucontrol->value.integer.value[1] = 0xff - ((value >> 16) & 0xff); /* Right */
 722        } else {
 723                ucontrol->value.integer.value[0] = 0xff - ((value >> 8) & 0xff); /* Left */
 724                ucontrol->value.integer.value[1] = 0xff - ((value >> 0) & 0xff); /* Right */
 725        }
 726        return 0;
 727}
 728
 729static int snd_p16v_volume_put(struct snd_kcontrol *kcontrol,
 730                               struct snd_ctl_elem_value *ucontrol)
 731{
 732        struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
 733        int high_low = (kcontrol->private_value >> 8) & 0xff;
 734        int reg = kcontrol->private_value & 0xff;
 735        u32 value, oval;
 736
 737        oval = value = snd_emu10k1_ptr20_read(emu, reg, 0);
 738        if (high_low == 1) {
 739                value &= 0xffff;
 740                value |= ((0xff - ucontrol->value.integer.value[0]) << 24) |
 741                        ((0xff - ucontrol->value.integer.value[1]) << 16);
 742        } else {
 743                value &= 0xffff0000;
 744                value |= ((0xff - ucontrol->value.integer.value[0]) << 8) |
 745                        ((0xff - ucontrol->value.integer.value[1]) );
 746        }
 747        if (value != oval) {
 748                snd_emu10k1_ptr20_write(emu, reg, 0, value);
 749                return 1;
 750        }
 751        return 0;
 752}
 753
 754static int snd_p16v_capture_source_info(struct snd_kcontrol *kcontrol,
 755                                        struct snd_ctl_elem_info *uinfo)
 756{
 757        static char *texts[8] = {
 758                "SPDIF", "I2S", "SRC48", "SRCMulti_SPDIF", "SRCMulti_I2S",
 759                "CDIF", "FX", "AC97"
 760        };
 761
 762        uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 763        uinfo->count = 1;
 764        uinfo->value.enumerated.items = 8;
 765        if (uinfo->value.enumerated.item > 7)
 766                uinfo->value.enumerated.item = 7;
 767        strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
 768        return 0;
 769}
 770
 771static int snd_p16v_capture_source_get(struct snd_kcontrol *kcontrol,
 772                                        struct snd_ctl_elem_value *ucontrol)
 773{
 774        struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
 775
 776        ucontrol->value.enumerated.item[0] = emu->p16v_capture_source;
 777        return 0;
 778}
 779
 780static int snd_p16v_capture_source_put(struct snd_kcontrol *kcontrol,
 781                                        struct snd_ctl_elem_value *ucontrol)
 782{
 783        struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
 784        unsigned int val;
 785        int change = 0;
 786        u32 mask;
 787        u32 source;
 788
 789        val = ucontrol->value.enumerated.item[0] ;
 790        if (val > 7)
 791                return -EINVAL;
 792        change = (emu->p16v_capture_source != val);
 793        if (change) {
 794                emu->p16v_capture_source = val;
 795                source = (val << 28) | (val << 24) | (val << 20) | (val << 16);
 796                mask = snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0) & 0xffff;
 797                snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, source | mask);
 798        }
 799        return change;
 800}
 801
 802static int snd_p16v_capture_channel_info(struct snd_kcontrol *kcontrol,
 803                                         struct snd_ctl_elem_info *uinfo)
 804{
 805        static char *texts[4] = { "0", "1", "2", "3",  };
 806
 807        uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 808        uinfo->count = 1;
 809        uinfo->value.enumerated.items = 4;
 810        if (uinfo->value.enumerated.item > 3)
 811                uinfo->value.enumerated.item = 3;
 812        strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
 813        return 0;
 814}
 815
 816static int snd_p16v_capture_channel_get(struct snd_kcontrol *kcontrol,
 817                                        struct snd_ctl_elem_value *ucontrol)
 818{
 819        struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
 820
 821        ucontrol->value.enumerated.item[0] = emu->p16v_capture_channel;
 822        return 0;
 823}
 824
 825static int snd_p16v_capture_channel_put(struct snd_kcontrol *kcontrol,
 826                                        struct snd_ctl_elem_value *ucontrol)
 827{
 828        struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
 829        unsigned int val;
 830        int change = 0;
 831        u32 tmp;
 832
 833        val = ucontrol->value.enumerated.item[0] ;
 834        if (val > 3)
 835                return -EINVAL;
 836        change = (emu->p16v_capture_channel != val);
 837        if (change) {
 838                emu->p16v_capture_channel = val;
 839                tmp = snd_emu10k1_ptr20_read(emu, CAPTURE_P16V_SOURCE, 0) & 0xfffc;
 840                snd_emu10k1_ptr20_write(emu, CAPTURE_P16V_SOURCE, 0, tmp | val);
 841        }
 842        return change;
 843}
 844static const DECLARE_TLV_DB_SCALE(snd_p16v_db_scale1, -5175, 25, 1);
 845
 846#define P16V_VOL(xname,xreg,xhl) { \
 847        .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 848        .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |             \
 849                  SNDRV_CTL_ELEM_ACCESS_TLV_READ,               \
 850        .info = snd_p16v_volume_info, \
 851        .get = snd_p16v_volume_get, \
 852        .put = snd_p16v_volume_put, \
 853        .tlv = { .p = snd_p16v_db_scale1 },     \
 854        .private_value = ((xreg) | ((xhl) << 8)) \
 855}
 856
 857static struct snd_kcontrol_new p16v_mixer_controls[] __devinitdata = {
 858        P16V_VOL("HD Analog Front Playback Volume", PLAYBACK_VOLUME_MIXER9, 0),
 859        P16V_VOL("HD Analog Rear Playback Volume", PLAYBACK_VOLUME_MIXER10, 1),
 860        P16V_VOL("HD Analog Center/LFE Playback Volume", PLAYBACK_VOLUME_MIXER9, 1),
 861        P16V_VOL("HD Analog Side Playback Volume", PLAYBACK_VOLUME_MIXER10, 0),
 862        P16V_VOL("HD SPDIF Front Playback Volume", PLAYBACK_VOLUME_MIXER7, 0),
 863        P16V_VOL("HD SPDIF Rear Playback Volume", PLAYBACK_VOLUME_MIXER8, 1),
 864        P16V_VOL("HD SPDIF Center/LFE Playback Volume", PLAYBACK_VOLUME_MIXER7, 1),
 865        P16V_VOL("HD SPDIF Side Playback Volume", PLAYBACK_VOLUME_MIXER8, 0),
 866        {
 867                .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
 868                .name =         "HD source Capture",
 869                .info =         snd_p16v_capture_source_info,
 870                .get =          snd_p16v_capture_source_get,
 871                .put =          snd_p16v_capture_source_put
 872        },
 873        {
 874                .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
 875                .name =         "HD channel Capture",
 876                .info =         snd_p16v_capture_channel_info,
 877                .get =          snd_p16v_capture_channel_get,
 878                .put =          snd_p16v_capture_channel_put
 879        },
 880};
 881
 882
 883int __devinit snd_p16v_mixer(struct snd_emu10k1 *emu)
 884{
 885        int i, err;
 886        struct snd_card *card = emu->card;
 887
 888        for (i = 0; i < ARRAY_SIZE(p16v_mixer_controls); i++) {
 889                if ((err = snd_ctl_add(card, snd_ctl_new1(&p16v_mixer_controls[i],
 890                                                          emu))) < 0)
 891                        return err;
 892        }
 893        return 0;
 894}
 895
 896#ifdef CONFIG_PM
 897
 898#define NUM_CHS 1       /* up to 4, but only first channel is used */
 899
 900int __devinit snd_p16v_alloc_pm_buffer(struct snd_emu10k1 *emu)
 901{
 902        emu->p16v_saved = vmalloc(NUM_CHS * 4 * 0x80);
 903        if (! emu->p16v_saved)
 904                return -ENOMEM;
 905        return 0;
 906}
 907
 908void snd_p16v_free_pm_buffer(struct snd_emu10k1 *emu)
 909{
 910        vfree(emu->p16v_saved);
 911}
 912
 913void snd_p16v_suspend(struct snd_emu10k1 *emu)
 914{
 915        int i, ch;
 916        unsigned int *val;
 917
 918        val = emu->p16v_saved;
 919        for (ch = 0; ch < NUM_CHS; ch++)
 920                for (i = 0; i < 0x80; i++, val++)
 921                        *val = snd_emu10k1_ptr20_read(emu, i, ch);
 922}
 923
 924void snd_p16v_resume(struct snd_emu10k1 *emu)
 925{
 926        int i, ch;
 927        unsigned int *val;
 928
 929        val = emu->p16v_saved;
 930        for (ch = 0; ch < NUM_CHS; ch++)
 931                for (i = 0; i < 0x80; i++, val++)
 932                        snd_emu10k1_ptr20_write(emu, i, ch, *val);
 933}
 934#endif
 935