sound/pci/emu10k1/p16v.c

   1 /*
   2  *  Copyright (c) by James Courtier-Dutton <James@superbug.demon.co.uk>
   3  *  Driver p16v chips
   4  *  Version: 0.22
   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  *
  45  *
  46  *  BUGS:
  47  *    Some stability problems when unloading the snd-p16v kernel module.
  48  *    --
  49  *
  50  *  TODO:
  51  *    SPDIF out.
  52  *    Find out how to change capture sample rates. E.g. To record SPDIF at 48000Hz.
  53  *    Currently capture fixed at 48000Hz.
  54  *
  55  *    --
  56  *  GENERAL INFO:
  57  *    Model: SB0240
  58  *    P16V Chip: CA0151-DBS
  59  *    Audigy 2 Chip: CA0102-IAT
  60  *    AC97 Codec: STAC 9721
  61  *    ADC: Philips 1361T (Stereo 24bit)
  62  *    DAC: CS4382-K (8-channel, 24bit, 192Khz)
  63  *
  64  *  This code was initally based on code from ALSA's emu10k1x.c which is:
  65  *  Copyright (c) by Francisco Moraes <fmoraes@nc.rr.com>
  66  *
  67  *   This program is free software; you can redistribute it and/or modify
  68  *   it under the terms of the GNU General Public License as published by
  69  *   the Free Software Foundation; either version 2 of the License, or
  70  *   (at your option) any later version.
  71  *
  72  *   This program is distributed in the hope that it will be useful,
  73  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  74  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  75  *   GNU General Public License for more details.
  76  *
  77  *   You should have received a copy of the GNU General Public License
  78  *   along with this program; if not, write to the Free Software
  79  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  80  *
  81  */
  82 #include <sound/driver.h>
  83 #include <linux/delay.h>
  84 #include <linux/init.h>
  85 #include <linux/interrupt.h>
  86 #include <linux/pci.h>
  87 #include <linux/slab.h>
  88 #include <linux/moduleparam.h>
  89 #include <sound/core.h>
  90 #include <sound/initval.h>
  91 #include <sound/pcm.h>
  92 #include <sound/ac97_codec.h>
  93 #include <sound/info.h>
  94 #include <sound/emu10k1.h>
  95 #include "p16v.h"
  96
  97 #define SET_CHANNEL 0  /* Testing channel outputs 0=Front, 1=Center/LFE, 2=Unknown, 3=Rear */
  98 #define PCM_FRONT_CHANNEL 0
  99 #define PCM_REAR_CHANNEL 1
 100 #define PCM_CENTER_LFE_CHANNEL 2
 101 #define PCM_UNKNOWN_CHANNEL 3
 102 #define CONTROL_FRONT_CHANNEL 0
 103 #define CONTROL_REAR_CHANNEL 3
 104 #define CONTROL_CENTER_LFE_CHANNEL 1
 105 #define CONTROL_UNKNOWN_CHANNEL 2
 106
 107 /* Card IDs:
 108  * Class 0401: 1102:0004 (rev 04) Subsystem: 1102:2002 -> Audigy2 ZS 7.1 Model:SB0350
 109  * Class 0401: 1102:0004 (rev 04) Subsystem: 1102:1007 -> Audigy2 6.1    Model:SB0240
 110  * Class 0401: 1102:0004 (rev 04) Subsystem: 1102:1002 -> Audigy2 Platinum  Model:SB msb0240230009266
 111  * Class 0401: 1102:0004 (rev 04) Subsystem: 1102:2007 -> Audigy4 Pro Model:SB0380 M1SB0380472001901E
 112  *
 113  */
 114
 115  /* hardware definition */
 116 static snd_pcm_hardware_t snd_p16v_playback_hw = {
 117         .info =                 (SNDRV_PCM_INFO_MMAP |
 118                                  SNDRV_PCM_INFO_INTERLEAVED |
 119                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
 120                                  SNDRV_PCM_INFO_MMAP_VALID),
 121         .formats =              SNDRV_PCM_FMTBIT_S32_LE, /* Only supports 24-bit samples padded to 32 bits. */
 122         .rates =                SNDRV_PCM_RATE_192000 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_44100,
 123         .rate_min =             44100,
 124         .rate_max =             192000,
 125         .channels_min =         8,
 126         .channels_max =         8,
 127         .buffer_bytes_max =     (32*1024),
 128         .period_bytes_min =     64,
 129         .period_bytes_max =     (16*1024),
 130         .periods_min =          2,
 131         .periods_max =          8,
 132         .fifo_size =            0,
 133 };
 134
 135 static snd_pcm_hardware_t snd_p16v_capture_hw = {
 136        .info =                 (SNDRV_PCM_INFO_MMAP |
 137                                 SNDRV_PCM_INFO_INTERLEAVED |
 138                                 SNDRV_PCM_INFO_BLOCK_TRANSFER |
 139                                 SNDRV_PCM_INFO_MMAP_VALID),
 140        .formats =              SNDRV_PCM_FMTBIT_S32_LE,
 141        .rates =                SNDRV_PCM_RATE_48000,
 142        .rate_min =             48000,
 143        .rate_max =             48000,
 144        .channels_min =         2,
 145        .channels_max =         2,
 146        .buffer_bytes_max =     (32*1024),
 147        .period_bytes_min =     64,
 148        .period_bytes_max =     (16*1024),
 149        .periods_min =          2,
 150        .periods_max =          2,
 151        .fifo_size =            0,
 152 };
 153
 154
 155 static void snd_p16v_pcm_free_substream(snd_pcm_runtime_t *runtime)
 156 {
 157         emu10k1_pcm_t *epcm = runtime->private_data;
 158
 159         if (epcm) {
 160                 //snd_printk("epcm free: %p\n", epcm);
 161                 kfree(epcm);
 162         }
 163 }
 164
 165 /* open_playback callback */
 166 static int snd_p16v_pcm_open_playback_channel(snd_pcm_substream_t *substream, int channel_id)
 167 {
 168         emu10k1_t *emu = snd_pcm_substream_chip(substream);
 169         emu10k1_voice_t *channel = &(emu->p16v_voices[channel_id]);
 170         emu10k1_pcm_t *epcm;
 171         snd_pcm_runtime_t *runtime = substream->runtime;
 172         int err;
 173
 174         epcm = kcalloc(1, sizeof(*epcm), GFP_KERNEL);
 175         //snd_printk("epcm kcalloc: %p\n", epcm);
 176
 177         if (epcm == NULL)
 178                 return -ENOMEM;
 179         epcm->emu = emu;
 180         epcm->substream = substream;
 181         //snd_printk("epcm device=%d, channel_id=%d\n", substream->pcm->device, channel_id);
 182
 183         runtime->private_data = epcm;
 184         runtime->private_free = snd_p16v_pcm_free_substream;
 185
 186         runtime->hw = snd_p16v_playback_hw;
 187
 188         channel->emu = emu;
 189         channel->number = channel_id;
 190
 191         channel->use=1;
 192         //snd_printk("p16v: open channel_id=%d, channel=%p, use=0x%x\n", channel_id, channel, channel->use);
 193         //printk("open:channel_id=%d, chip=%p, channel=%p\n",channel_id, chip, channel);
 194         //channel->interrupt = snd_p16v_pcm_channel_interrupt;
 195         channel->epcm=epcm;
 196         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 197                 return err;
 198
 199         return 0;
 200 }
 201 /* open_capture callback */
 202 static int snd_p16v_pcm_open_capture_channel(snd_pcm_substream_t *substream, int channel_id)
 203 {
 204         emu10k1_t *emu = snd_pcm_substream_chip(substream);
 205         emu10k1_voice_t *channel = &(emu->p16v_capture_voice);
 206         emu10k1_pcm_t *epcm;
 207         snd_pcm_runtime_t *runtime = substream->runtime;
 208         int err;
 209
 210         epcm = kcalloc(1, sizeof(*epcm), GFP_KERNEL);
 211         //snd_printk("epcm kcalloc: %p\n", epcm);
 212
 213         if (epcm == NULL)
 214                 return -ENOMEM;
 215         epcm->emu = emu;
 216         epcm->substream = substream;
 217         //snd_printk("epcm device=%d, channel_id=%d\n", substream->pcm->device, channel_id);
 218
 219         runtime->private_data = epcm;
 220         runtime->private_free = snd_p16v_pcm_free_substream;
 221
 222         runtime->hw = snd_p16v_capture_hw;
 223
 224         channel->emu = emu;
 225         channel->number = channel_id;
 226
 227         channel->use=1;
 228         //snd_printk("p16v: open channel_id=%d, channel=%p, use=0x%x\n", channel_id, channel, channel->use);
 229         //printk("open:channel_id=%d, chip=%p, channel=%p\n",channel_id, chip, channel);
 230         //channel->interrupt = snd_p16v_pcm_channel_interrupt;
 231         channel->epcm=epcm;
 232         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 233                 return err;
 234
 235         return 0;
 236 }
 237
 238
 239 /* close callback */
 240 static int snd_p16v_pcm_close_playback(snd_pcm_substream_t *substream)
 241 {
 242         emu10k1_t *emu = snd_pcm_substream_chip(substream);
 243         //snd_pcm_runtime_t *runtime = substream->runtime;
 244         //emu10k1_pcm_t *epcm = runtime->private_data;
 245         emu->p16v_voices[substream->pcm->device - emu->p16v_device_offset].use=0;
 246         /* FIXME: maybe zero others */
 247         return 0;
 248 }
 249
 250 /* close callback */
 251 static int snd_p16v_pcm_close_capture(snd_pcm_substream_t *substream)
 252 {
 253         emu10k1_t *emu = snd_pcm_substream_chip(substream);
 254         //snd_pcm_runtime_t *runtime = substream->runtime;
 255         //emu10k1_pcm_t *epcm = runtime->private_data;
 256         emu->p16v_capture_voice.use=0;
 257         /* FIXME: maybe zero others */
 258         return 0;
 259 }
 260
 261 static int snd_p16v_pcm_open_playback_front(snd_pcm_substream_t *substream)
 262 {
 263         return snd_p16v_pcm_open_playback_channel(substream, PCM_FRONT_CHANNEL);
 264 }
 265
 266 static int snd_p16v_pcm_open_capture(snd_pcm_substream_t *substream)
 267 {
 268         // Only using channel 0 for now, but the card has 2 channels.
 269         return snd_p16v_pcm_open_capture_channel(substream, 0);
 270 }
 271
 272 /* hw_params callback */
 273 static int snd_p16v_pcm_hw_params_playback(snd_pcm_substream_t *substream,
 274                                       snd_pcm_hw_params_t * hw_params)
 275 {
 276         int result;
 277         result = snd_pcm_lib_malloc_pages(substream,
 278                                         params_buffer_bytes(hw_params));
 279         return result;
 280 }
 281
 282 /* hw_params callback */
 283 static int snd_p16v_pcm_hw_params_capture(snd_pcm_substream_t *substream,
 284                                       snd_pcm_hw_params_t * hw_params)
 285 {
 286         int result;
 287         result = snd_pcm_lib_malloc_pages(substream,
 288                                         params_buffer_bytes(hw_params));
 289         return result;
 290 }
 291
 292
 293 /* hw_free callback */
 294 static int snd_p16v_pcm_hw_free_playback(snd_pcm_substream_t *substream)
 295 {
 296         int result;
 297         result = snd_pcm_lib_free_pages(substream);
 298         return result;
 299 }
 300
 301 /* hw_free callback */
 302 static int snd_p16v_pcm_hw_free_capture(snd_pcm_substream_t *substream)
 303 {
 304         int result;
 305         result = snd_pcm_lib_free_pages(substream);
 306         return result;
 307 }
 308
 309
 310 /* prepare playback callback */
 311 static int snd_p16v_pcm_prepare_playback(snd_pcm_substream_t *substream)
 312 {
 313         emu10k1_t *emu = snd_pcm_substream_chip(substream);
 314         snd_pcm_runtime_t *runtime = substream->runtime;
 315         int channel = substream->pcm->device - emu->p16v_device_offset;
 316         u32 *table_base = (u32 *)(emu->p16v_buffer.area+(8*16*channel));
 317         u32 period_size_bytes = frames_to_bytes(runtime, runtime->period_size);
 318         int i;
 319         u32 tmp;
 320
 321         //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));
 322         //snd_printk("dma_addr=%x, dma_area=%p, table_base=%p\n",runtime->dma_addr, runtime->dma_area, table_base);
 323         //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);
 324         tmp = snd_emu10k1_ptr_read(emu, A_SPDIF_SAMPLERATE, channel);
 325         switch (runtime->rate) {
 326         case 44100:
 327           snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0xe0e0) | 0x8080);
 328           break;
 329         case 96000:
 330           snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0xe0e0) | 0x4040);
 331           break;
 332         case 192000:
 333           snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0xe0e0) | 0x2020);
 334           break;
 335         case 48000:
 336         default:
 337           snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0xe0e0) | 0x0000);
 338           break;
 339         }
 340         /* FIXME: Check emu->buffer.size before actually writing to it. */
 341         for(i=0; i < runtime->periods; i++) {
 342                 table_base[i*2]=runtime->dma_addr+(i*period_size_bytes);
 343                 table_base[(i*2)+1]=period_size_bytes<<16;
 344         }
 345
 346         snd_emu10k1_ptr20_write(emu, PLAYBACK_LIST_ADDR, channel, emu->p16v_buffer.addr+(8*16*channel));
 347         snd_emu10k1_ptr20_write(emu, PLAYBACK_LIST_SIZE, channel, (runtime->periods - 1) << 19);
 348         snd_emu10k1_ptr20_write(emu, PLAYBACK_LIST_PTR, channel, 0);
 349         snd_emu10k1_ptr20_write(emu, PLAYBACK_DMA_ADDR, channel, runtime->dma_addr);
 350         snd_emu10k1_ptr20_write(emu, PLAYBACK_PERIOD_SIZE, channel, frames_to_bytes(runtime, runtime->period_size)<<16); // buffer size in bytes
 351         snd_emu10k1_ptr20_write(emu, PLAYBACK_POINTER, channel, 0);
 352         snd_emu10k1_ptr20_write(emu, 0x07, channel, 0x0);
 353         snd_emu10k1_ptr20_write(emu, 0x08, channel, 0);
 354
 355         return 0;
 356 }
 357
 358 /* prepare capture callback */
 359 static int snd_p16v_pcm_prepare_capture(snd_pcm_substream_t *substream)
 360 {
 361         emu10k1_t *emu = snd_pcm_substream_chip(substream);
 362         snd_pcm_runtime_t *runtime = substream->runtime;
 363         int channel = substream->pcm->device - emu->p16v_device_offset;
 364         //printk("prepare: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));
 365         snd_emu10k1_ptr20_write(emu, 0x13, channel, 0);
 366         snd_emu10k1_ptr20_write(emu, CAPTURE_DMA_ADDR, channel, runtime->dma_addr);
 367         snd_emu10k1_ptr20_write(emu, CAPTURE_BUFFER_SIZE, channel, frames_to_bytes(runtime, runtime->buffer_size)<<16); // buffer size in bytes
 368         snd_emu10k1_ptr20_write(emu, CAPTURE_POINTER, channel, 0);
 369         //snd_emu10k1_ptr20_write(emu, CAPTURE_SOURCE, 0x0, 0x333300e4); /* Select MIC or Line in */
 370         //snd_emu10k1_ptr20_write(emu, EXTENDED_INT_MASK, 0, snd_emu10k1_ptr20_read(emu, EXTENDED_INT_MASK, 0) | (0x110000<<channel));
 371
 372         return 0;
 373 }
 374
 375 static void snd_p16v_intr_enable(emu10k1_t *emu, unsigned int intrenb)
 376 {
 377         unsigned long flags;
 378         unsigned int enable;
 379
 380         spin_lock_irqsave(&emu->emu_lock, flags);
 381         enable = inl(emu->port + INTE2) | intrenb;
 382         outl(enable, emu->port + INTE2);
 383         spin_unlock_irqrestore(&emu->emu_lock, flags);
 384 }
 385
 386 static void snd_p16v_intr_disable(emu10k1_t *emu, unsigned int intrenb)
 387 {
 388         unsigned long flags;
 389         unsigned int disable;
 390
 391         spin_lock_irqsave(&emu->emu_lock, flags);
 392         disable = inl(emu->port + INTE2) & (~intrenb);
 393         outl(disable, emu->port + INTE2);
 394         spin_unlock_irqrestore(&emu->emu_lock, flags);
 395 }
 396
 397 /* trigger_playback callback */
 398 static int snd_p16v_pcm_trigger_playback(snd_pcm_substream_t *substream,
 399                                     int cmd)
 400 {
 401         emu10k1_t *emu = snd_pcm_substream_chip(substream);
 402         snd_pcm_runtime_t *runtime;
 403         emu10k1_pcm_t *epcm;
 404         int channel;
 405         int result = 0;
 406         struct list_head *pos;
 407         snd_pcm_substream_t *s;
 408         u32 basic = 0;
 409         u32 inte = 0;
 410         int running=0;
 411
 412         switch (cmd) {
 413         case SNDRV_PCM_TRIGGER_START:
 414                 running=1;
 415                 break;
 416         case SNDRV_PCM_TRIGGER_STOP:
 417         default:
 418                 running=0;
 419                 break;
 420         }
 421         snd_pcm_group_for_each(pos, substream) {
 422                 s = snd_pcm_group_substream_entry(pos);
 423                 runtime = s->runtime;
 424                 epcm = runtime->private_data;
 425                 channel = substream->pcm->device-emu->p16v_device_offset;
 426                 //snd_printk("p16v channel=%d\n",channel);
 427                 epcm->running = running;
 428                 basic |= (0x1<<channel);
 429                 inte |= (INTE2_PLAYBACK_CH_0_LOOP<<channel);
 430                 snd_pcm_trigger_done(s, substream);
 431         }
 432         //snd_printk("basic=0x%x, inte=0x%x\n",basic, inte);
 433
 434         switch (cmd) {
 435         case SNDRV_PCM_TRIGGER_START:
 436                 snd_p16v_intr_enable(emu, inte);
 437                 snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0)| (basic));
 438                 break;
 439         case SNDRV_PCM_TRIGGER_STOP:
 440                 snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0) & ~(basic));
 441                 snd_p16v_intr_disable(emu, inte);
 442                 break;
 443         default:
 444                 result = -EINVAL;
 445                 break;
 446         }
 447         return result;
 448 }
 449
 450 /* trigger_capture callback */
 451 static int snd_p16v_pcm_trigger_capture(snd_pcm_substream_t *substream,
 452                                    int cmd)
 453 {
 454         emu10k1_t *emu = snd_pcm_substream_chip(substream);
 455         snd_pcm_runtime_t *runtime = substream->runtime;
 456         emu10k1_pcm_t *epcm = runtime->private_data;
 457         int channel = 0;
 458         int result = 0;
 459         u32 inte = INTE2_CAPTURE_CH_0_LOOP | INTE2_CAPTURE_CH_0_HALF_LOOP;
 460
 461         switch (cmd) {
 462         case SNDRV_PCM_TRIGGER_START:
 463                 snd_p16v_intr_enable(emu, inte);
 464                 snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0)|(0x100<<channel));
 465                 epcm->running = 1;
 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) & ~(0x100<<channel));
 469                 snd_p16v_intr_disable(emu, inte);
 470                 //snd_emu10k1_ptr20_write(emu, EXTENDED_INT_MASK, 0, snd_emu10k1_ptr20_read(emu, EXTENDED_INT_MASK, 0) & ~(0x110000<<channel));
 471                 epcm->running = 0;
 472                 break;
 473         default:
 474                 result = -EINVAL;
 475                 break;
 476         }
 477         return result;
 478 }
 479
 480 /* pointer_playback callback */
 481 static snd_pcm_uframes_t
 482 snd_p16v_pcm_pointer_playback(snd_pcm_substream_t *substream)
 483 {
 484         emu10k1_t *emu = snd_pcm_substream_chip(substream);
 485         snd_pcm_runtime_t *runtime = substream->runtime;
 486         emu10k1_pcm_t *epcm = runtime->private_data;
 487         snd_pcm_uframes_t ptr, ptr1, ptr2,ptr3,ptr4 = 0;
 488         int channel = substream->pcm->device - emu->p16v_device_offset;
 489         if (!epcm->running)
 490                 return 0;
 491
 492         ptr3 = snd_emu10k1_ptr20_read(emu, PLAYBACK_LIST_PTR, channel);
 493         ptr1 = snd_emu10k1_ptr20_read(emu, PLAYBACK_POINTER, channel);
 494         ptr4 = snd_emu10k1_ptr20_read(emu, PLAYBACK_LIST_PTR, channel);
 495         if (ptr3 != ptr4) ptr1 = snd_emu10k1_ptr20_read(emu, PLAYBACK_POINTER, channel);
 496         ptr2 = bytes_to_frames(runtime, ptr1);
 497         ptr2+= (ptr4 >> 3) * runtime->period_size;
 498         ptr=ptr2;
 499         if (ptr >= runtime->buffer_size)
 500                 ptr -= runtime->buffer_size;
 501
 502         return ptr;
 503 }
 504
 505 /* pointer_capture callback */
 506 static snd_pcm_uframes_t
 507 snd_p16v_pcm_pointer_capture(snd_pcm_substream_t *substream)
 508 {
 509         emu10k1_t *emu = snd_pcm_substream_chip(substream);
 510         snd_pcm_runtime_t *runtime = substream->runtime;
 511         emu10k1_pcm_t *epcm = runtime->private_data;
 512         snd_pcm_uframes_t ptr, ptr1, ptr2 = 0;
 513         int channel = 0;
 514
 515         if (!epcm->running)
 516                 return 0;
 517
 518         ptr1 = snd_emu10k1_ptr20_read(emu, CAPTURE_POINTER, channel);
 519         ptr2 = bytes_to_frames(runtime, ptr1);
 520         ptr=ptr2;
 521         if (ptr >= runtime->buffer_size) {
 522                 ptr -= runtime->buffer_size;
 523                 printk("buffer capture limited!\n");
 524         }
 525         //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);
 526
 527         return ptr;
 528 }
 529
 530 /* operators */
 531 static snd_pcm_ops_t snd_p16v_playback_front_ops = {
 532         .open =        snd_p16v_pcm_open_playback_front,
 533         .close =       snd_p16v_pcm_close_playback,
 534         .ioctl =       snd_pcm_lib_ioctl,
 535         .hw_params =   snd_p16v_pcm_hw_params_playback,
 536         .hw_free =     snd_p16v_pcm_hw_free_playback,
 537         .prepare =     snd_p16v_pcm_prepare_playback,
 538         .trigger =     snd_p16v_pcm_trigger_playback,
 539         .pointer =     snd_p16v_pcm_pointer_playback,
 540 };
 541
 542 static snd_pcm_ops_t snd_p16v_capture_ops = {
 543         .open =        snd_p16v_pcm_open_capture,
 544         .close =       snd_p16v_pcm_close_capture,
 545         .ioctl =       snd_pcm_lib_ioctl,
 546         .hw_params =   snd_p16v_pcm_hw_params_capture,
 547         .hw_free =     snd_p16v_pcm_hw_free_capture,
 548         .prepare =     snd_p16v_pcm_prepare_capture,
 549         .trigger =     snd_p16v_pcm_trigger_capture,
 550         .pointer =     snd_p16v_pcm_pointer_capture,
 551 };
 552
 553
 554 int snd_p16v_free(emu10k1_t *chip)
 555 {
 556         // release the data
 557         if (chip->p16v_buffer.area) {
 558                 snd_dma_free_pages(&chip->p16v_buffer);
 559                 //snd_printk("period lables free: %p\n", &chip->p16v_buffer);
 560         }
 561         return 0;
 562 }
 563
 564 static void snd_p16v_pcm_free(snd_pcm_t *pcm)
 565 {
 566         emu10k1_t *emu = pcm->private_data;
 567         //snd_printk("snd_p16v_pcm_free pcm: called\n");
 568         snd_pcm_lib_preallocate_free_for_all(pcm);
 569         emu->pcm = NULL;
 570 }
 571
 572 int snd_p16v_pcm(emu10k1_t *emu, int device, snd_pcm_t **rpcm)
 573 {
 574         snd_pcm_t *pcm;
 575         snd_pcm_substream_t *substream;
 576         int err;
 577         int capture=1;
 578
 579         //snd_printk("snd_p16v_pcm called. device=%d\n", device);
 580         emu->p16v_device_offset = device;
 581         if (rpcm)
 582                 *rpcm = NULL;
 583
 584         if ((err = snd_pcm_new(emu->card, "p16v", device, 1, capture, &pcm)) < 0)
 585                 return err;
 586
 587         pcm->private_data = emu;
 588         pcm->private_free = snd_p16v_pcm_free;
 589         // Single playback 8 channel device.
 590         // Single capture 2 channel device.
 591         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_p16v_playback_front_ops);
 592         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_p16v_capture_ops);
 593
 594         pcm->info_flags = 0;
 595         pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
 596         strcpy(pcm->name, "p16v");
 597         emu->pcm = pcm;
 598
 599         for(substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
 600             substream;
 601             substream = substream->next) {
 602                 if ((err = snd_pcm_lib_preallocate_pages(substream,
 603                                                          SNDRV_DMA_TYPE_DEV,
 604                                                          snd_dma_pci_data(emu->pci),
 605                                                          64*1024, 64*1024)) < 0) /* FIXME: 32*1024 for sound buffer, between 32and64 for Periods table. */
 606                         return err;
 607                 //snd_printk("preallocate playback substream: err=%d\n", err);
 608         }
 609
 610         for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream;
 611               substream;
 612               substream = substream->next) {
 613                 if ((err = snd_pcm_lib_preallocate_pages(substream,
 614                                                    SNDRV_DMA_TYPE_DEV,
 615                                                    snd_dma_pci_data(emu->pci),
 616                                                    64*1024, 64*1024)) < 0)
 617                         return err;
 618                 //snd_printk("preallocate capture substream: err=%d\n", err);
 619         }
 620
 621         if (rpcm)
 622                 *rpcm = pcm;
 623
 624         return 0;
 625 }
 626
 627 static int snd_p16v_volume_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
 628 {
 629         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 630         uinfo->count = 2;
 631         uinfo->value.integer.min = 0;
 632         uinfo->value.integer.max = 255;
 633         return 0;
 634 }
 635
 636 static int snd_p16v_volume_get(snd_kcontrol_t * kcontrol,
 637                                        snd_ctl_elem_value_t * ucontrol, int reg, int high_low)
 638 {
 639         emu10k1_t *emu = snd_kcontrol_chip(kcontrol);
 640         u32 value;
 641
 642         value = snd_emu10k1_ptr20_read(emu, reg, high_low);
 643         if (high_low == 1) {
 644                 ucontrol->value.integer.value[0] = 0xff - ((value >> 24) & 0xff); /* Left */
 645                 ucontrol->value.integer.value[1] = 0xff - ((value >> 16) & 0xff); /* Right */
 646         } else {
 647                 ucontrol->value.integer.value[0] = 0xff - ((value >> 8) & 0xff); /* Left */
 648                 ucontrol->value.integer.value[1] = 0xff - ((value >> 0) & 0xff); /* Right */
 649         }
 650         return 0;
 651 }
 652
 653 static int snd_p16v_volume_get_spdif_front(snd_kcontrol_t * kcontrol,
 654                                        snd_ctl_elem_value_t * ucontrol)
 655 {
 656         int high_low = 0;
 657         int reg = PLAYBACK_VOLUME_MIXER7;
 658         return snd_p16v_volume_get(kcontrol, ucontrol, reg, high_low);
 659 }
 660
 661 static int snd_p16v_volume_get_spdif_center_lfe(snd_kcontrol_t * kcontrol,
 662                                        snd_ctl_elem_value_t * ucontrol)
 663 {
 664         int high_low = 1;
 665         int reg = PLAYBACK_VOLUME_MIXER7;
 666         return snd_p16v_volume_get(kcontrol, ucontrol, reg, high_low);
 667 }
 668 static int snd_p16v_volume_get_spdif_unknown(snd_kcontrol_t * kcontrol,
 669                                        snd_ctl_elem_value_t * ucontrol)
 670 {
 671         int high_low = 0;
 672         int reg = PLAYBACK_VOLUME_MIXER8;
 673         return snd_p16v_volume_get(kcontrol, ucontrol, reg, high_low);
 674 }
 675 static int snd_p16v_volume_get_spdif_rear(snd_kcontrol_t * kcontrol,
 676                                        snd_ctl_elem_value_t * ucontrol)
 677 {
 678         int high_low = 1;
 679         int reg = PLAYBACK_VOLUME_MIXER8;
 680         return snd_p16v_volume_get(kcontrol, ucontrol, reg, high_low);
 681 }
 682
 683 static int snd_p16v_volume_get_analog_front(snd_kcontrol_t * kcontrol,
 684                                        snd_ctl_elem_value_t * ucontrol)
 685 {
 686         int high_low = 0;
 687         int reg = PLAYBACK_VOLUME_MIXER9;
 688         return snd_p16v_volume_get(kcontrol, ucontrol, reg, high_low);
 689 }
 690
 691 static int snd_p16v_volume_get_analog_center_lfe(snd_kcontrol_t * kcontrol,
 692                                        snd_ctl_elem_value_t * ucontrol)
 693 {
 694         int high_low = 1;
 695         int reg = PLAYBACK_VOLUME_MIXER9;
 696         return snd_p16v_volume_get(kcontrol, ucontrol, reg, high_low);
 697 }
 698 static int snd_p16v_volume_get_analog_rear(snd_kcontrol_t * kcontrol,
 699                                        snd_ctl_elem_value_t * ucontrol)
 700 {
 701         int high_low = 1;
 702         int reg = PLAYBACK_VOLUME_MIXER10;
 703         return snd_p16v_volume_get(kcontrol, ucontrol, reg, high_low);
 704 }
 705
 706 static int snd_p16v_volume_get_analog_unknown(snd_kcontrol_t * kcontrol,
 707                                        snd_ctl_elem_value_t * ucontrol)
 708 {
 709         int high_low = 0;
 710         int reg = PLAYBACK_VOLUME_MIXER10;
 711         return snd_p16v_volume_get(kcontrol, ucontrol, reg, high_low);
 712 }
 713
 714 static int snd_p16v_volume_put(snd_kcontrol_t * kcontrol,
 715                                        snd_ctl_elem_value_t * ucontrol, int reg, int high_low)
 716 {
 717         emu10k1_t *emu = snd_kcontrol_chip(kcontrol);
 718         u32 value;
 719         value = snd_emu10k1_ptr20_read(emu, reg, 0);
 720         //value = value & 0xffff;
 721         if (high_low == 1) {
 722                 value &= 0xffff;
 723                 value = value | ((0xff - ucontrol->value.integer.value[0]) << 24) | ((0xff - ucontrol->value.integer.value[1]) << 16);
 724         } else {
 725                 value &= 0xffff0000;
 726                 value = value | ((0xff - ucontrol->value.integer.value[0]) << 8) | ((0xff - ucontrol->value.integer.value[1]) );
 727         }
 728                 snd_emu10k1_ptr20_write(emu, reg, 0, value);
 729         return 1;
 730 }
 731
 732 static int snd_p16v_volume_put_spdif_front(snd_kcontrol_t * kcontrol,
 733                                        snd_ctl_elem_value_t * ucontrol)
 734 {
 735         int high_low = 0;
 736         int reg = PLAYBACK_VOLUME_MIXER7;
 737         return snd_p16v_volume_put(kcontrol, ucontrol, reg, high_low);
 738 }
 739
 740 static int snd_p16v_volume_put_spdif_center_lfe(snd_kcontrol_t * kcontrol,
 741                                        snd_ctl_elem_value_t * ucontrol)
 742 {
 743         int high_low = 1;
 744         int reg = PLAYBACK_VOLUME_MIXER7;
 745         return snd_p16v_volume_put(kcontrol, ucontrol, reg, high_low);
 746 }
 747
 748 static int snd_p16v_volume_put_spdif_unknown(snd_kcontrol_t * kcontrol,
 749                                        snd_ctl_elem_value_t * ucontrol)
 750 {
 751         int high_low = 0;
 752         int reg = PLAYBACK_VOLUME_MIXER8;
 753         return snd_p16v_volume_put(kcontrol, ucontrol, reg, high_low);
 754 }
 755
 756 static int snd_p16v_volume_put_spdif_rear(snd_kcontrol_t * kcontrol,
 757                                        snd_ctl_elem_value_t * ucontrol)
 758 {
 759         int high_low = 1;
 760         int reg = PLAYBACK_VOLUME_MIXER8;
 761         return snd_p16v_volume_put(kcontrol, ucontrol, reg, high_low);
 762 }
 763
 764 static int snd_p16v_volume_put_analog_front(snd_kcontrol_t * kcontrol,
 765                                        snd_ctl_elem_value_t * ucontrol)
 766 {
 767         int high_low = 0;
 768         int reg = PLAYBACK_VOLUME_MIXER9;
 769         return snd_p16v_volume_put(kcontrol, ucontrol, reg, high_low);
 770 }
 771
 772 static int snd_p16v_volume_put_analog_center_lfe(snd_kcontrol_t * kcontrol,
 773                                        snd_ctl_elem_value_t * ucontrol)
 774 {
 775         int high_low = 1;
 776         int reg = PLAYBACK_VOLUME_MIXER9;
 777         return snd_p16v_volume_put(kcontrol, ucontrol, reg, high_low);
 778 }
 779
 780 static int snd_p16v_volume_put_analog_rear(snd_kcontrol_t * kcontrol,
 781                                        snd_ctl_elem_value_t * ucontrol)
 782 {
 783         int high_low = 1;
 784         int reg = PLAYBACK_VOLUME_MIXER10;
 785         return snd_p16v_volume_put(kcontrol, ucontrol, reg, high_low);
 786 }
 787
 788 static int snd_p16v_volume_put_analog_unknown(snd_kcontrol_t * kcontrol,
 789                                        snd_ctl_elem_value_t * ucontrol)
 790 {
 791         int high_low = 0;
 792         int reg = PLAYBACK_VOLUME_MIXER10;
 793         return snd_p16v_volume_put(kcontrol, ucontrol, reg, high_low);
 794 }
 795
 796 static snd_kcontrol_new_t snd_p16v_volume_control_analog_front =
 797 {
 798         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
 799         .name =         "HD Analog Front Volume",
 800         .info =         snd_p16v_volume_info,
 801         .get =          snd_p16v_volume_get_analog_front,
 802         .put =          snd_p16v_volume_put_analog_front
 803 };
 804
 805 static snd_kcontrol_new_t snd_p16v_volume_control_analog_center_lfe =
 806 {
 807         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
 808         .name =         "HD Analog Center/LFE Volume",
 809         .info =         snd_p16v_volume_info,
 810         .get =          snd_p16v_volume_get_analog_center_lfe,
 811         .put =          snd_p16v_volume_put_analog_center_lfe
 812 };
 813
 814 static snd_kcontrol_new_t snd_p16v_volume_control_analog_unknown =
 815 {
 816         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
 817         .name =         "HD Analog Unknown Volume",
 818         .info =         snd_p16v_volume_info,
 819         .get =          snd_p16v_volume_get_analog_unknown,
 820         .put =          snd_p16v_volume_put_analog_unknown
 821 };
 822
 823 static snd_kcontrol_new_t snd_p16v_volume_control_analog_rear =
 824 {
 825         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
 826         .name =         "HD Analog Rear Volume",
 827         .info =         snd_p16v_volume_info,
 828         .get =          snd_p16v_volume_get_analog_rear,
 829         .put =          snd_p16v_volume_put_analog_rear
 830 };
 831
 832 static snd_kcontrol_new_t snd_p16v_volume_control_spdif_front =
 833 {
 834         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
 835         .name =         "HD SPDIF Front Volume",
 836         .info =         snd_p16v_volume_info,
 837         .get =          snd_p16v_volume_get_spdif_front,
 838         .put =          snd_p16v_volume_put_spdif_front
 839 };
 840
 841 static snd_kcontrol_new_t snd_p16v_volume_control_spdif_center_lfe =
 842 {
 843         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
 844         .name =         "HD SPDIF Center/LFE Volume",
 845         .info =         snd_p16v_volume_info,
 846         .get =          snd_p16v_volume_get_spdif_center_lfe,
 847         .put =          snd_p16v_volume_put_spdif_center_lfe
 848 };
 849
 850 static snd_kcontrol_new_t snd_p16v_volume_control_spdif_unknown =
 851 {
 852         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
 853         .name =         "HD SPDIF Unknown Volume",
 854         .info =         snd_p16v_volume_info,
 855         .get =          snd_p16v_volume_get_spdif_unknown,
 856         .put =          snd_p16v_volume_put_spdif_unknown
 857 };
 858
 859 static snd_kcontrol_new_t snd_p16v_volume_control_spdif_rear =
 860 {
 861         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
 862         .name =         "HD SPDIF Rear Volume",
 863         .info =         snd_p16v_volume_info,
 864         .get =          snd_p16v_volume_get_spdif_rear,
 865         .put =          snd_p16v_volume_put_spdif_rear
 866 };
 867
 868 static int snd_p16v_capture_source_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
 869 {
 870         static char *texts[8] = { "SPDIF", "I2S", "SRC48", "SRCMulti_SPDIF", "SRCMulti_I2S", "CDIF", "FX", "AC97" };
 871
 872         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 873         uinfo->count = 1;
 874         uinfo->value.enumerated.items = 8;
 875         if (uinfo->value.enumerated.item > 7)
 876                 uinfo->value.enumerated.item = 7;
 877         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
 878         return 0;
 879 }
 880
 881 static int snd_p16v_capture_source_get(snd_kcontrol_t * kcontrol,
 882                                         snd_ctl_elem_value_t * ucontrol)
 883 {
 884         emu10k1_t *emu = snd_kcontrol_chip(kcontrol);
 885
 886         ucontrol->value.enumerated.item[0] = emu->p16v_capture_source;
 887         return 0;
 888 }
 889
 890 static int snd_p16v_capture_source_put(snd_kcontrol_t * kcontrol,
 891                                         snd_ctl_elem_value_t * ucontrol)
 892 {
 893         emu10k1_t *emu = snd_kcontrol_chip(kcontrol);
 894         unsigned int val;
 895         int change = 0;
 896         u32 mask;
 897         u32 source;
 898
 899         val = ucontrol->value.enumerated.item[0] ;
 900         change = (emu->p16v_capture_source != val);
 901         if (change) {
 902                 emu->p16v_capture_source = val;
 903                 source = (val << 28) | (val << 24) | (val << 20) | (val << 16);
 904                 mask = snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0) & 0xffff;
 905                 snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, source | mask);
 906         }
 907         return change;
 908 }
 909
 910 static snd_kcontrol_new_t snd_p16v_capture_source __devinitdata =
 911 {
 912         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
 913         .name =         "HD Capture source",
 914         .info =         snd_p16v_capture_source_info,
 915         .get =          snd_p16v_capture_source_get,
 916         .put =          snd_p16v_capture_source_put
 917 };
 918 int snd_p16v_mixer(emu10k1_t *emu)
 919 {
 920         int err;
 921         snd_kcontrol_t *kctl;
 922         snd_card_t *card = emu->card;
 923         if ((kctl = snd_ctl_new1(&snd_p16v_volume_control_analog_front, emu)) == NULL)
 924                 return -ENOMEM;
 925         if ((err = snd_ctl_add(card, kctl)))
 926                 return err;
 927         if ((kctl = snd_ctl_new1(&snd_p16v_volume_control_analog_rear, emu)) == NULL)
 928                 return -ENOMEM;
 929         if ((err = snd_ctl_add(card, kctl)))
 930                 return err;
 931         if ((kctl = snd_ctl_new1(&snd_p16v_volume_control_analog_center_lfe, emu)) == NULL)
 932                 return -ENOMEM;
 933         if ((err = snd_ctl_add(card, kctl)))
 934                 return err;
 935         if ((kctl = snd_ctl_new1(&snd_p16v_volume_control_analog_unknown, emu)) == NULL)
 936                 return -ENOMEM;
 937         if ((err = snd_ctl_add(card, kctl)))
 938                 return err;
 939         if ((kctl = snd_ctl_new1(&snd_p16v_volume_control_spdif_front, emu)) == NULL)
 940                 return -ENOMEM;
 941         if ((err = snd_ctl_add(card, kctl)))
 942                 return err;
 943         if ((kctl = snd_ctl_new1(&snd_p16v_volume_control_spdif_rear, emu)) == NULL)
 944                 return -ENOMEM;
 945         if ((err = snd_ctl_add(card, kctl)))
 946                 return err;
 947         if ((kctl = snd_ctl_new1(&snd_p16v_volume_control_spdif_center_lfe, emu)) == NULL)
 948                 return -ENOMEM;
 949         if ((err = snd_ctl_add(card, kctl)))
 950                 return err;
 951         if ((kctl = snd_ctl_new1(&snd_p16v_volume_control_spdif_unknown, emu)) == NULL)
 952                 return -ENOMEM;
 953         if ((err = snd_ctl_add(card, kctl)))
 954                 return err;
 955         if ((kctl = snd_ctl_new1(&snd_p16v_capture_source, emu)) == NULL)
 956                 return -ENOMEM;
 957         if ((err = snd_ctl_add(card, kctl)))
 958                 return err;
 959         return 0;
 960 }
 961