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 ,
 123         .rate_min =             48000,
 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 & ~0xe000) | 0x8000); /* FIXME: This will change the capture rate as well! */
 328           break;
 329         case 48000:
 330           snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0xe000) | 0x0000); /* FIXME: This will change the capture rate as well! */
 331           break;
 332         case 96000:
 333           snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0xe000) | 0x4000); /* FIXME: This will change the capture rate as well! */
 334           break;
 335         case 192000:
 336           snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0xe000) | 0x2000); /* FIXME: This will change the capture rate as well! */
 337           break;
 338         default:
 339           snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, 0x0000); /* FIXME: This will change the capture rate as well! */
 340           break;
 341         }
 342         /* FIXME: Check emu->buffer.size before actually writing to it. */
 343         for(i=0; i < runtime->periods; i++) {
 344                 table_base[i*2]=runtime->dma_addr+(i*period_size_bytes);
 345                 table_base[(i*2)+1]=period_size_bytes<<16;
 346         }
 347
 348         snd_emu10k1_ptr20_write(emu, PLAYBACK_LIST_ADDR, channel, emu->p16v_buffer.addr+(8*16*channel));
 349         snd_emu10k1_ptr20_write(emu, PLAYBACK_LIST_SIZE, channel, (runtime->periods - 1) << 19);
 350         snd_emu10k1_ptr20_write(emu, PLAYBACK_LIST_PTR, channel, 0);
 351         snd_emu10k1_ptr20_write(emu, PLAYBACK_DMA_ADDR, channel, runtime->dma_addr);
 352         snd_emu10k1_ptr20_write(emu, PLAYBACK_PERIOD_SIZE, channel, frames_to_bytes(runtime, runtime->period_size)<<16); // buffer size in bytes
 353         snd_emu10k1_ptr20_write(emu, PLAYBACK_POINTER, channel, 0);
 354         snd_emu10k1_ptr20_write(emu, 0x07, channel, 0x0);
 355         snd_emu10k1_ptr20_write(emu, 0x08, channel, 0);
 356
 357         return 0;
 358 }
 359
 360 /* prepare capture callback */
 361 static int snd_p16v_pcm_prepare_capture(snd_pcm_substream_t *substream)
 362 {
 363         emu10k1_t *emu = snd_pcm_substream_chip(substream);
 364         snd_pcm_runtime_t *runtime = substream->runtime;
 365         int channel = substream->pcm->device - emu->p16v_device_offset;
 366         //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));
 367         snd_emu10k1_ptr20_write(emu, 0x13, channel, 0);
 368         snd_emu10k1_ptr20_write(emu, CAPTURE_DMA_ADDR, channel, runtime->dma_addr);
 369         snd_emu10k1_ptr20_write(emu, CAPTURE_BUFFER_SIZE, channel, frames_to_bytes(runtime, runtime->buffer_size)<<16); // buffer size in bytes
 370         snd_emu10k1_ptr20_write(emu, CAPTURE_POINTER, channel, 0);
 371         //snd_emu10k1_ptr20_write(emu, CAPTURE_SOURCE, 0x0, 0x333300e4); /* Select MIC or Line in */
 372         //snd_emu10k1_ptr20_write(emu, EXTENDED_INT_MASK, 0, snd_emu10k1_ptr20_read(emu, EXTENDED_INT_MASK, 0) | (0x110000<<channel));
 373
 374         return 0;
 375 }
 376
 377 static void snd_p16v_intr_enable(emu10k1_t *emu, unsigned int intrenb)
 378 {
 379         unsigned long flags;
 380         unsigned int enable;
 381
 382         spin_lock_irqsave(&emu->emu_lock, flags);
 383         enable = inl(emu->port + INTE2) | intrenb;
 384         outl(enable, emu->port + INTE2);
 385         spin_unlock_irqrestore(&emu->emu_lock, flags);
 386 }
 387
 388 static void snd_p16v_intr_disable(emu10k1_t *emu, unsigned int intrenb)
 389 {
 390         unsigned long flags;
 391         unsigned int disable;
 392
 393         spin_lock_irqsave(&emu->emu_lock, flags);
 394         disable = inl(emu->port + INTE2) & (~intrenb);
 395         outl(disable, emu->port + INTE2);
 396         spin_unlock_irqrestore(&emu->emu_lock, flags);
 397 }
 398
 399 /* trigger_playback callback */
 400 static int snd_p16v_pcm_trigger_playback(snd_pcm_substream_t *substream,
 401                                     int cmd)
 402 {
 403         emu10k1_t *emu = snd_pcm_substream_chip(substream);
 404         snd_pcm_runtime_t *runtime;
 405         emu10k1_pcm_t *epcm;
 406         int channel;
 407         int result = 0;
 408         struct list_head *pos;
 409         snd_pcm_substream_t *s;
 410         u32 basic = 0;
 411         u32 inte = 0;
 412         int running=0;
 413
 414         switch (cmd) {
 415         case SNDRV_PCM_TRIGGER_START:
 416                 running=1;
 417                 break;
 418         case SNDRV_PCM_TRIGGER_STOP:
 419         default:
 420                 running=0;
 421                 break;
 422         }
 423         snd_pcm_group_for_each(pos, substream) {
 424                 s = snd_pcm_group_substream_entry(pos);
 425                 runtime = s->runtime;
 426                 epcm = runtime->private_data;
 427                 channel = substream->pcm->device-emu->p16v_device_offset;
 428                 //snd_printk("p16v channel=%d\n",channel);
 429                 epcm->running = running;
 430                 basic |= (0x1<<channel);
 431                 inte |= (INTE2_PLAYBACK_CH_0_LOOP<<channel);
 432                 snd_pcm_trigger_done(s, substream);
 433         }
 434         //snd_printk("basic=0x%x, inte=0x%x\n",basic, inte);
 435
 436         switch (cmd) {
 437         case SNDRV_PCM_TRIGGER_START:
 438                 snd_p16v_intr_enable(emu, inte);
 439                 snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0)| (basic));
 440                 break;
 441         case SNDRV_PCM_TRIGGER_STOP:
 442                 snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0) & ~(basic));
 443                 snd_p16v_intr_disable(emu, inte);
 444                 break;
 445         default:
 446                 result = -EINVAL;
 447                 break;
 448         }
 449         return result;
 450 }
 451
 452 /* trigger_capture callback */
 453 static int snd_p16v_pcm_trigger_capture(snd_pcm_substream_t *substream,
 454                                    int cmd)
 455 {
 456         emu10k1_t *emu = snd_pcm_substream_chip(substream);
 457         snd_pcm_runtime_t *runtime = substream->runtime;
 458         emu10k1_pcm_t *epcm = runtime->private_data;
 459         int channel = 0;
 460         int result = 0;
 461         u32 inte = INTE2_CAPTURE_CH_0_LOOP | INTE2_CAPTURE_CH_0_HALF_LOOP;
 462
 463         switch (cmd) {
 464         case SNDRV_PCM_TRIGGER_START:
 465                 snd_p16v_intr_enable(emu, inte);
 466                 snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0)|(0x100<<channel));
 467                 epcm->running = 1;
 468                 break;
 469         case SNDRV_PCM_TRIGGER_STOP:
 470                 snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0) & ~(0x100<<channel));
 471                 snd_p16v_intr_disable(emu, inte);
 472                 //snd_emu10k1_ptr20_write(emu, EXTENDED_INT_MASK, 0, snd_emu10k1_ptr20_read(emu, EXTENDED_INT_MASK, 0) & ~(0x110000<<channel));
 473                 epcm->running = 0;
 474                 break;
 475         default:
 476                 result = -EINVAL;
 477                 break;
 478         }
 479         return result;
 480 }
 481
 482 /* pointer_playback callback */
 483 static snd_pcm_uframes_t
 484 snd_p16v_pcm_pointer_playback(snd_pcm_substream_t *substream)
 485 {
 486         emu10k1_t *emu = snd_pcm_substream_chip(substream);
 487         snd_pcm_runtime_t *runtime = substream->runtime;
 488         emu10k1_pcm_t *epcm = runtime->private_data;
 489         snd_pcm_uframes_t ptr, ptr1, ptr2,ptr3,ptr4 = 0;
 490         int channel = substream->pcm->device - emu->p16v_device_offset;
 491         if (!epcm->running)
 492                 return 0;
 493
 494         ptr3 = snd_emu10k1_ptr20_read(emu, PLAYBACK_LIST_PTR, channel);
 495         ptr1 = snd_emu10k1_ptr20_read(emu, PLAYBACK_POINTER, channel);
 496         ptr4 = snd_emu10k1_ptr20_read(emu, PLAYBACK_LIST_PTR, channel);
 497         if (ptr3 != ptr4) ptr1 = snd_emu10k1_ptr20_read(emu, PLAYBACK_POINTER, channel);
 498         ptr2 = bytes_to_frames(runtime, ptr1);
 499         ptr2+= (ptr4 >> 3) * runtime->period_size;
 500         ptr=ptr2;
 501         if (ptr >= runtime->buffer_size)
 502                 ptr -= runtime->buffer_size;
 503
 504         return ptr;
 505 }
 506
 507 /* pointer_capture callback */
 508 static snd_pcm_uframes_t
 509 snd_p16v_pcm_pointer_capture(snd_pcm_substream_t *substream)
 510 {
 511         emu10k1_t *emu = snd_pcm_substream_chip(substream);
 512         snd_pcm_runtime_t *runtime = substream->runtime;
 513         emu10k1_pcm_t *epcm = runtime->private_data;
 514         snd_pcm_uframes_t ptr, ptr1, ptr2 = 0;
 515         int channel = 0;
 516
 517         if (!epcm->running)
 518                 return 0;
 519
 520         ptr1 = snd_emu10k1_ptr20_read(emu, CAPTURE_POINTER, channel);
 521         ptr2 = bytes_to_frames(runtime, ptr1);
 522         ptr=ptr2;
 523         if (ptr >= runtime->buffer_size) {
 524                 ptr -= runtime->buffer_size;
 525                 printk("buffer capture limited!\n");
 526         }
 527         //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);
 528
 529         return ptr;
 530 }
 531
 532 /* operators */
 533 static snd_pcm_ops_t snd_p16v_playback_front_ops = {
 534         .open =        snd_p16v_pcm_open_playback_front,
 535         .close =       snd_p16v_pcm_close_playback,
 536         .ioctl =       snd_pcm_lib_ioctl,
 537         .hw_params =   snd_p16v_pcm_hw_params_playback,
 538         .hw_free =     snd_p16v_pcm_hw_free_playback,
 539         .prepare =     snd_p16v_pcm_prepare_playback,
 540         .trigger =     snd_p16v_pcm_trigger_playback,
 541         .pointer =     snd_p16v_pcm_pointer_playback,
 542 };
 543
 544 static snd_pcm_ops_t snd_p16v_capture_ops = {
 545         .open =        snd_p16v_pcm_open_capture,
 546         .close =       snd_p16v_pcm_close_capture,
 547         .ioctl =       snd_pcm_lib_ioctl,
 548         .hw_params =   snd_p16v_pcm_hw_params_capture,
 549         .hw_free =     snd_p16v_pcm_hw_free_capture,
 550         .prepare =     snd_p16v_pcm_prepare_capture,
 551         .trigger =     snd_p16v_pcm_trigger_capture,
 552         .pointer =     snd_p16v_pcm_pointer_capture,
 553 };
 554
 555
 556 int snd_p16v_free(emu10k1_t *chip)
 557 {
 558         // release the data
 559         if (chip->p16v_buffer.area) {
 560                 snd_dma_free_pages(&chip->p16v_buffer);
 561                 //snd_printk("period lables free: %p\n", &chip->p16v_buffer);
 562         }
 563         return 0;
 564 }
 565
 566 static void snd_p16v_pcm_free(snd_pcm_t *pcm)
 567 {
 568         emu10k1_t *emu = pcm->private_data;
 569         //snd_printk("snd_p16v_pcm_free pcm: called\n");
 570         snd_pcm_lib_preallocate_free_for_all(pcm);
 571         emu->pcm = NULL;
 572 }
 573
 574 int snd_p16v_pcm(emu10k1_t *emu, int device, snd_pcm_t **rpcm)
 575 {
 576         snd_pcm_t *pcm;
 577         snd_pcm_substream_t *substream;
 578         int err;
 579         int capture=1;
 580
 581         //snd_printk("snd_p16v_pcm called. device=%d\n", device);
 582         emu->p16v_device_offset = device;
 583         if (rpcm)
 584                 *rpcm = NULL;
 585
 586         if ((err = snd_pcm_new(emu->card, "p16v", device, 1, capture, &pcm)) < 0)
 587                 return err;
 588
 589         pcm->private_data = emu;
 590         pcm->private_free = snd_p16v_pcm_free;
 591         // Single playback 8 channel device.
 592         // Single capture 2 channel device.
 593         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_p16v_playback_front_ops);
 594         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_p16v_capture_ops);
 595
 596         pcm->info_flags = 0;
 597         pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
 598         strcpy(pcm->name, "p16v");
 599         emu->pcm = pcm;
 600
 601         for(substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
 602             substream;
 603             substream = substream->next) {
 604                 if ((err = snd_pcm_lib_preallocate_pages(substream,
 605                                                          SNDRV_DMA_TYPE_DEV,
 606                                                          snd_dma_pci_data(emu->pci),
 607                                                          64*1024, 64*1024)) < 0) /* FIXME: 32*1024 for sound buffer, between 32and64 for Periods table. */
 608                         return err;
 609                 //snd_printk("preallocate playback substream: err=%d\n", err);
 610         }
 611
 612         for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream;
 613               substream;
 614               substream = substream->next) {
 615                 if ((err = snd_pcm_lib_preallocate_pages(substream,
 616                                                    SNDRV_DMA_TYPE_DEV,
 617                                                    snd_dma_pci_data(emu->pci),
 618                                                    64*1024, 64*1024)) < 0)
 619                         return err;
 620                 //snd_printk("preallocate capture substream: err=%d\n", err);
 621         }
 622
 623         if (rpcm)
 624                 *rpcm = pcm;
 625
 626         return 0;
 627 }
 628
 629 static int snd_p16v_volume_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
 630 {
 631         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 632         uinfo->count = 2;
 633         uinfo->value.integer.min = 0;
 634         uinfo->value.integer.max = 255;
 635         return 0;
 636 }
 637
 638 static int snd_p16v_volume_get(snd_kcontrol_t * kcontrol,
 639                                        snd_ctl_elem_value_t * ucontrol, int reg, int high_low)
 640 {
 641         emu10k1_t *emu = snd_kcontrol_chip(kcontrol);
 642         u32 value;
 643
 644         value = snd_emu10k1_ptr20_read(emu, reg, high_low);
 645         if (high_low == 1) {
 646                 ucontrol->value.integer.value[0] = 0xff - ((value >> 24) & 0xff); /* Left */
 647                 ucontrol->value.integer.value[1] = 0xff - ((value >> 16) & 0xff); /* Right */
 648         } else {
 649                 ucontrol->value.integer.value[0] = 0xff - ((value >> 8) & 0xff); /* Left */
 650                 ucontrol->value.integer.value[1] = 0xff - ((value >> 0) & 0xff); /* Right */
 651         }
 652         return 0;
 653 }
 654
 655 static int snd_p16v_volume_get_spdif_front(snd_kcontrol_t * kcontrol,
 656                                        snd_ctl_elem_value_t * ucontrol)
 657 {
 658         int high_low = 0;
 659         int reg = PLAYBACK_VOLUME_MIXER7;
 660         return snd_p16v_volume_get(kcontrol, ucontrol, reg, high_low);
 661 }
 662
 663 static int snd_p16v_volume_get_spdif_center_lfe(snd_kcontrol_t * kcontrol,
 664                                        snd_ctl_elem_value_t * ucontrol)
 665 {
 666         int high_low = 1;
 667         int reg = PLAYBACK_VOLUME_MIXER7;
 668         return snd_p16v_volume_get(kcontrol, ucontrol, reg, high_low);
 669 }
 670 static int snd_p16v_volume_get_spdif_unknown(snd_kcontrol_t * kcontrol,
 671                                        snd_ctl_elem_value_t * ucontrol)
 672 {
 673         int high_low = 0;
 674         int reg = PLAYBACK_VOLUME_MIXER8;
 675         return snd_p16v_volume_get(kcontrol, ucontrol, reg, high_low);
 676 }
 677 static int snd_p16v_volume_get_spdif_rear(snd_kcontrol_t * kcontrol,
 678                                        snd_ctl_elem_value_t * ucontrol)
 679 {
 680         int high_low = 1;
 681         int reg = PLAYBACK_VOLUME_MIXER8;
 682         return snd_p16v_volume_get(kcontrol, ucontrol, reg, high_low);
 683 }
 684
 685 static int snd_p16v_volume_get_analog_front(snd_kcontrol_t * kcontrol,
 686                                        snd_ctl_elem_value_t * ucontrol)
 687 {
 688         int high_low = 0;
 689         int reg = PLAYBACK_VOLUME_MIXER9;
 690         return snd_p16v_volume_get(kcontrol, ucontrol, reg, high_low);
 691 }
 692
 693 static int snd_p16v_volume_get_analog_center_lfe(snd_kcontrol_t * kcontrol,
 694                                        snd_ctl_elem_value_t * ucontrol)
 695 {
 696         int high_low = 1;
 697         int reg = PLAYBACK_VOLUME_MIXER9;
 698         return snd_p16v_volume_get(kcontrol, ucontrol, reg, high_low);
 699 }
 700 static int snd_p16v_volume_get_analog_rear(snd_kcontrol_t * kcontrol,
 701                                        snd_ctl_elem_value_t * ucontrol)
 702 {
 703         int high_low = 1;
 704         int reg = PLAYBACK_VOLUME_MIXER10;
 705         return snd_p16v_volume_get(kcontrol, ucontrol, reg, high_low);
 706 }
 707
 708 static int snd_p16v_volume_get_analog_unknown(snd_kcontrol_t * kcontrol,
 709                                        snd_ctl_elem_value_t * ucontrol)
 710 {
 711         int high_low = 0;
 712         int reg = PLAYBACK_VOLUME_MIXER10;
 713         return snd_p16v_volume_get(kcontrol, ucontrol, reg, high_low);
 714 }
 715
 716 static int snd_p16v_volume_put(snd_kcontrol_t * kcontrol,
 717                                        snd_ctl_elem_value_t * ucontrol, int reg, int high_low)
 718 {
 719         emu10k1_t *emu = snd_kcontrol_chip(kcontrol);
 720         u32 value;
 721         value = snd_emu10k1_ptr20_read(emu, reg, 0);
 722         //value = value & 0xffff;
 723         if (high_low == 1) {
 724                 value &= 0xffff;
 725                 value = value | ((0xff - ucontrol->value.integer.value[0]) << 24) | ((0xff - ucontrol->value.integer.value[1]) << 16);
 726         } else {
 727                 value &= 0xffff0000;
 728                 value = value | ((0xff - ucontrol->value.integer.value[0]) << 8) | ((0xff - ucontrol->value.integer.value[1]) );
 729         }
 730                 snd_emu10k1_ptr20_write(emu, reg, 0, value);
 731         return 1;
 732 }
 733
 734 static int snd_p16v_volume_put_spdif_front(snd_kcontrol_t * kcontrol,
 735                                        snd_ctl_elem_value_t * ucontrol)
 736 {
 737         int high_low = 0;
 738         int reg = PLAYBACK_VOLUME_MIXER7;
 739         return snd_p16v_volume_put(kcontrol, ucontrol, reg, high_low);
 740 }
 741
 742 static int snd_p16v_volume_put_spdif_center_lfe(snd_kcontrol_t * kcontrol,
 743                                        snd_ctl_elem_value_t * ucontrol)
 744 {
 745         int high_low = 1;
 746         int reg = PLAYBACK_VOLUME_MIXER7;
 747         return snd_p16v_volume_put(kcontrol, ucontrol, reg, high_low);
 748 }
 749
 750 static int snd_p16v_volume_put_spdif_unknown(snd_kcontrol_t * kcontrol,
 751                                        snd_ctl_elem_value_t * ucontrol)
 752 {
 753         int high_low = 0;
 754         int reg = PLAYBACK_VOLUME_MIXER8;
 755         return snd_p16v_volume_put(kcontrol, ucontrol, reg, high_low);
 756 }
 757
 758 static int snd_p16v_volume_put_spdif_rear(snd_kcontrol_t * kcontrol,
 759                                        snd_ctl_elem_value_t * ucontrol)
 760 {
 761         int high_low = 1;
 762         int reg = PLAYBACK_VOLUME_MIXER8;
 763         return snd_p16v_volume_put(kcontrol, ucontrol, reg, high_low);
 764 }
 765
 766 static int snd_p16v_volume_put_analog_front(snd_kcontrol_t * kcontrol,
 767                                        snd_ctl_elem_value_t * ucontrol)
 768 {
 769         int high_low = 0;
 770         int reg = PLAYBACK_VOLUME_MIXER9;
 771         return snd_p16v_volume_put(kcontrol, ucontrol, reg, high_low);
 772 }
 773
 774 static int snd_p16v_volume_put_analog_center_lfe(snd_kcontrol_t * kcontrol,
 775                                        snd_ctl_elem_value_t * ucontrol)
 776 {
 777         int high_low = 1;
 778         int reg = PLAYBACK_VOLUME_MIXER9;
 779         return snd_p16v_volume_put(kcontrol, ucontrol, reg, high_low);
 780 }
 781
 782 static int snd_p16v_volume_put_analog_rear(snd_kcontrol_t * kcontrol,
 783                                        snd_ctl_elem_value_t * ucontrol)
 784 {
 785         int high_low = 1;
 786         int reg = PLAYBACK_VOLUME_MIXER10;
 787         return snd_p16v_volume_put(kcontrol, ucontrol, reg, high_low);
 788 }
 789
 790 static int snd_p16v_volume_put_analog_unknown(snd_kcontrol_t * kcontrol,
 791                                        snd_ctl_elem_value_t * ucontrol)
 792 {
 793         int high_low = 0;
 794         int reg = PLAYBACK_VOLUME_MIXER10;
 795         return snd_p16v_volume_put(kcontrol, ucontrol, reg, high_low);
 796 }
 797
 798 static snd_kcontrol_new_t snd_p16v_volume_control_analog_front =
 799 {
 800         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
 801         .name =         "HD Analog Front Volume",
 802         .info =         snd_p16v_volume_info,
 803         .get =          snd_p16v_volume_get_analog_front,
 804         .put =          snd_p16v_volume_put_analog_front
 805 };
 806
 807 static snd_kcontrol_new_t snd_p16v_volume_control_analog_center_lfe =
 808 {
 809         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
 810         .name =         "HD Analog Center/LFE Volume",
 811         .info =         snd_p16v_volume_info,
 812         .get =          snd_p16v_volume_get_analog_center_lfe,
 813         .put =          snd_p16v_volume_put_analog_center_lfe
 814 };
 815
 816 static snd_kcontrol_new_t snd_p16v_volume_control_analog_unknown =
 817 {
 818         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
 819         .name =         "HD Analog Unknown Volume",
 820         .info =         snd_p16v_volume_info,
 821         .get =          snd_p16v_volume_get_analog_unknown,
 822         .put =          snd_p16v_volume_put_analog_unknown
 823 };
 824
 825 static snd_kcontrol_new_t snd_p16v_volume_control_analog_rear =
 826 {
 827         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
 828         .name =         "HD Analog Rear Volume",
 829         .info =         snd_p16v_volume_info,
 830         .get =          snd_p16v_volume_get_analog_rear,
 831         .put =          snd_p16v_volume_put_analog_rear
 832 };
 833
 834 static snd_kcontrol_new_t snd_p16v_volume_control_spdif_front =
 835 {
 836         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
 837         .name =         "HD SPDIF Front Volume",
 838         .info =         snd_p16v_volume_info,
 839         .get =          snd_p16v_volume_get_spdif_front,
 840         .put =          snd_p16v_volume_put_spdif_front
 841 };
 842
 843 static snd_kcontrol_new_t snd_p16v_volume_control_spdif_center_lfe =
 844 {
 845         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
 846         .name =         "HD SPDIF Center/LFE Volume",
 847         .info =         snd_p16v_volume_info,
 848         .get =          snd_p16v_volume_get_spdif_center_lfe,
 849         .put =          snd_p16v_volume_put_spdif_center_lfe
 850 };
 851
 852 static snd_kcontrol_new_t snd_p16v_volume_control_spdif_unknown =
 853 {
 854         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
 855         .name =         "HD SPDIF Unknown Volume",
 856         .info =         snd_p16v_volume_info,
 857         .get =          snd_p16v_volume_get_spdif_unknown,
 858         .put =          snd_p16v_volume_put_spdif_unknown
 859 };
 860
 861 static snd_kcontrol_new_t snd_p16v_volume_control_spdif_rear =
 862 {
 863         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
 864         .name =         "HD SPDIF Rear Volume",
 865         .info =         snd_p16v_volume_info,
 866         .get =          snd_p16v_volume_get_spdif_rear,
 867         .put =          snd_p16v_volume_put_spdif_rear
 868 };
 869
 870 static int snd_p16v_capture_source_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
 871 {
 872         static char *texts[8] = { "SPDIF", "I2S", "SRC48", "SRCMulti_SPDIF", "SRCMulti_I2S", "CDIF", "FX", "AC97" };
 873
 874         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 875         uinfo->count = 1;
 876         uinfo->value.enumerated.items = 8;
 877         if (uinfo->value.enumerated.item > 7)
 878                 uinfo->value.enumerated.item = 7;
 879         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
 880         return 0;
 881 }
 882
 883 static int snd_p16v_capture_source_get(snd_kcontrol_t * kcontrol,
 884                                         snd_ctl_elem_value_t * ucontrol)
 885 {
 886         emu10k1_t *emu = snd_kcontrol_chip(kcontrol);
 887
 888         ucontrol->value.enumerated.item[0] = emu->p16v_capture_source;
 889         return 0;
 890 }
 891
 892 static int snd_p16v_capture_source_put(snd_kcontrol_t * kcontrol,
 893                                         snd_ctl_elem_value_t * ucontrol)
 894 {
 895         emu10k1_t *emu = snd_kcontrol_chip(kcontrol);
 896         unsigned int val;
 897         int change = 0;
 898         u32 mask;
 899         u32 source;
 900
 901         val = ucontrol->value.enumerated.item[0] ;
 902         change = (emu->p16v_capture_source != val);
 903         if (change) {
 904                 emu->p16v_capture_source = val;
 905                 source = (val << 28) | (val << 24) | (val << 20) | (val << 16);
 906                 mask = snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0) & 0xffff;
 907                 snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, source | mask);
 908         }
 909         return change;
 910 }
 911
 912 static snd_kcontrol_new_t snd_p16v_capture_source __devinitdata =
 913 {
 914         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
 915         .name =         "HD Capture source",
 916         .info =         snd_p16v_capture_source_info,
 917         .get =          snd_p16v_capture_source_get,
 918         .put =          snd_p16v_capture_source_put
 919 };
 920 int snd_p16v_mixer(emu10k1_t *emu)
 921 {
 922         int err;
 923         snd_kcontrol_t *kctl;
 924         snd_card_t *card = emu->card;
 925         if ((kctl = snd_ctl_new1(&snd_p16v_volume_control_analog_front, emu)) == NULL)
 926                 return -ENOMEM;
 927         if ((err = snd_ctl_add(card, kctl)))
 928                 return err;
 929         if ((kctl = snd_ctl_new1(&snd_p16v_volume_control_analog_rear, emu)) == NULL)
 930                 return -ENOMEM;
 931         if ((err = snd_ctl_add(card, kctl)))
 932                 return err;
 933         if ((kctl = snd_ctl_new1(&snd_p16v_volume_control_analog_center_lfe, emu)) == NULL)
 934                 return -ENOMEM;
 935         if ((err = snd_ctl_add(card, kctl)))
 936                 return err;
 937         if ((kctl = snd_ctl_new1(&snd_p16v_volume_control_analog_unknown, emu)) == NULL)
 938                 return -ENOMEM;
 939         if ((err = snd_ctl_add(card, kctl)))
 940                 return err;
 941         if ((kctl = snd_ctl_new1(&snd_p16v_volume_control_spdif_front, emu)) == NULL)
 942                 return -ENOMEM;
 943         if ((err = snd_ctl_add(card, kctl)))
 944                 return err;
 945         if ((kctl = snd_ctl_new1(&snd_p16v_volume_control_spdif_rear, emu)) == NULL)
 946                 return -ENOMEM;
 947         if ((err = snd_ctl_add(card, kctl)))
 948                 return err;
 949         if ((kctl = snd_ctl_new1(&snd_p16v_volume_control_spdif_center_lfe, emu)) == NULL)
 950                 return -ENOMEM;
 951         if ((err = snd_ctl_add(card, kctl)))
 952                 return err;
 953         if ((kctl = snd_ctl_new1(&snd_p16v_volume_control_spdif_unknown, emu)) == NULL)
 954                 return -ENOMEM;
 955         if ((err = snd_ctl_add(card, kctl)))
 956                 return err;
 957         if ((kctl = snd_ctl_new1(&snd_p16v_capture_source, emu)) == NULL)
 958                 return -ENOMEM;
 959         if ((err = snd_ctl_add(card, kctl)))
 960                 return err;
 961         return 0;
 962 }
 963