linux/sound/pci/ca0106/ca0106_proc.c
<<
>>
Prefs
   1/*
   2 *  Copyright (c) 2004 James Courtier-Dutton <James@superbug.demon.co.uk>
   3 *  Driver CA0106 chips. e.g. Sound Blaster Audigy LS and Live 24bit
   4 *  Version: 0.0.18
   5 *
   6 *  FEATURES currently supported:
   7 *    See ca0106_main.c for features.
   8 * 
   9 *  Changelog:
  10 *    Support interrupts per period.
  11 *    Removed noise from Center/LFE channel when in Analog mode.
  12 *    Rename and remove mixer controls.
  13 *  0.0.6
  14 *    Use separate card based DMA buffer for periods table list.
  15 *  0.0.7
  16 *    Change remove and rename ctrls into lists.
  17 *  0.0.8
  18 *    Try to fix capture sources.
  19 *  0.0.9
  20 *    Fix AC3 output.
  21 *    Enable S32_LE format support.
  22 *  0.0.10
  23 *    Enable playback 48000 and 96000 rates. (Rates other that these do not work, even with "plug:front".)
  24 *  0.0.11
  25 *    Add Model name recognition.
  26 *  0.0.12
  27 *    Correct interrupt timing. interrupt at end of period, instead of in the middle of a playback period.
  28 *    Remove redundent "voice" handling.
  29 *  0.0.13
  30 *    Single trigger call for multi channels.
  31 *  0.0.14
  32 *    Set limits based on what the sound card hardware can do.
  33 *    playback periods_min=2, periods_max=8
  34 *    capture hw constraints require period_size = n * 64 bytes.
  35 *    playback hw constraints require period_size = n * 64 bytes.
  36 *  0.0.15
  37 *    Separate ca0106.c into separate functional .c files.
  38 *  0.0.16
  39 *    Modified Copyright message.
  40 *  0.0.17
  41 *    Add iec958 file in proc file system to show status of SPDIF in.
  42 *  0.0.18
  43 *    Implement support for Line-in capture on SB Live 24bit.
  44 *
  45 *  This code was initally based on code from ALSA's emu10k1x.c which is:
  46 *  Copyright (c) by Francisco Moraes <fmoraes@nc.rr.com>
  47 *
  48 *   This program is free software; you can redistribute it and/or modify
  49 *   it under the terms of the GNU General Public License as published by
  50 *   the Free Software Foundation; either version 2 of the License, or
  51 *   (at your option) any later version.
  52 *
  53 *   This program is distributed in the hope that it will be useful,
  54 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  55 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  56 *   GNU General Public License for more details.
  57 *
  58 *   You should have received a copy of the GNU General Public License
  59 *   along with this program; if not, write to the Free Software
  60 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  61 *
  62 */
  63#include <sound/driver.h>
  64#include <linux/delay.h>
  65#include <linux/init.h>
  66#include <linux/interrupt.h>
  67#include <linux/slab.h>
  68#include <linux/moduleparam.h>
  69#include <sound/core.h>
  70#include <sound/initval.h>
  71#include <sound/pcm.h>
  72#include <sound/ac97_codec.h>
  73#include <sound/info.h>
  74#include <sound/asoundef.h>
  75#include <asm/io.h>
  76
  77#include "ca0106.h"
  78
  79
  80#ifdef CONFIG_PROC_FS
  81
  82struct snd_ca0106_category_str {
  83        int val;
  84        const char *name;
  85};
  86
  87static struct snd_ca0106_category_str snd_ca0106_con_category[] = {
  88        { IEC958_AES1_CON_DAT, "DAT" },
  89        { IEC958_AES1_CON_VCR, "VCR" },
  90        { IEC958_AES1_CON_MICROPHONE, "microphone" },
  91        { IEC958_AES1_CON_SYNTHESIZER, "synthesizer" },
  92        { IEC958_AES1_CON_RATE_CONVERTER, "rate converter" },
  93        { IEC958_AES1_CON_MIXER, "mixer" },
  94        { IEC958_AES1_CON_SAMPLER, "sampler" },
  95        { IEC958_AES1_CON_PCM_CODER, "PCM coder" },
  96        { IEC958_AES1_CON_IEC908_CD, "CD" },
  97        { IEC958_AES1_CON_NON_IEC908_CD, "non-IEC908 CD" },
  98        { IEC958_AES1_CON_GENERAL, "general" },
  99};
 100
 101
 102static void snd_ca0106_proc_dump_iec958( struct snd_info_buffer *buffer, u32 value)
 103{
 104        int i;
 105        u32 status[4];
 106        status[0] = value & 0xff;
 107        status[1] = (value >> 8) & 0xff;
 108        status[2] = (value >> 16)  & 0xff;
 109        status[3] = (value >> 24)  & 0xff;
 110        
 111        if (! (status[0] & IEC958_AES0_PROFESSIONAL)) {
 112                /* consumer */
 113                snd_iprintf(buffer, "Mode: consumer\n");
 114                snd_iprintf(buffer, "Data: ");
 115                if (!(status[0] & IEC958_AES0_NONAUDIO)) {
 116                        snd_iprintf(buffer, "audio\n");
 117                } else {
 118                        snd_iprintf(buffer, "non-audio\n");
 119                }
 120                snd_iprintf(buffer, "Rate: ");
 121                switch (status[3] & IEC958_AES3_CON_FS) {
 122                case IEC958_AES3_CON_FS_44100:
 123                        snd_iprintf(buffer, "44100 Hz\n");
 124                        break;
 125                case IEC958_AES3_CON_FS_48000:
 126                        snd_iprintf(buffer, "48000 Hz\n");
 127                        break;
 128                case IEC958_AES3_CON_FS_32000:
 129                        snd_iprintf(buffer, "32000 Hz\n");
 130                        break;
 131                default:
 132                        snd_iprintf(buffer, "unknown\n");
 133                        break;
 134                }
 135                snd_iprintf(buffer, "Copyright: ");
 136                if (status[0] & IEC958_AES0_CON_NOT_COPYRIGHT) {
 137                        snd_iprintf(buffer, "permitted\n");
 138                } else {
 139                        snd_iprintf(buffer, "protected\n");
 140                }
 141                snd_iprintf(buffer, "Emphasis: ");
 142                if ((status[0] & IEC958_AES0_CON_EMPHASIS) != IEC958_AES0_CON_EMPHASIS_5015) {
 143                        snd_iprintf(buffer, "none\n");
 144                } else {
 145                        snd_iprintf(buffer, "50/15us\n");
 146                }
 147                snd_iprintf(buffer, "Category: ");
 148                for (i = 0; i < ARRAY_SIZE(snd_ca0106_con_category); i++) {
 149                        if ((status[1] & IEC958_AES1_CON_CATEGORY) == snd_ca0106_con_category[i].val) {
 150                                snd_iprintf(buffer, "%s\n", snd_ca0106_con_category[i].name);
 151                                break;
 152                        }
 153                }
 154                if (i >= ARRAY_SIZE(snd_ca0106_con_category)) {
 155                        snd_iprintf(buffer, "unknown 0x%x\n", status[1] & IEC958_AES1_CON_CATEGORY);
 156                }
 157                snd_iprintf(buffer, "Original: ");
 158                if (status[1] & IEC958_AES1_CON_ORIGINAL) {
 159                        snd_iprintf(buffer, "original\n");
 160                } else {
 161                        snd_iprintf(buffer, "1st generation\n");
 162                }
 163                snd_iprintf(buffer, "Clock: ");
 164                switch (status[3] & IEC958_AES3_CON_CLOCK) {
 165                case IEC958_AES3_CON_CLOCK_1000PPM:
 166                        snd_iprintf(buffer, "1000 ppm\n");
 167                        break;
 168                case IEC958_AES3_CON_CLOCK_50PPM:
 169                        snd_iprintf(buffer, "50 ppm\n");
 170                        break;
 171                case IEC958_AES3_CON_CLOCK_VARIABLE:
 172                        snd_iprintf(buffer, "variable pitch\n");
 173                        break;
 174                default:
 175                        snd_iprintf(buffer, "unknown\n");
 176                        break;
 177                }
 178        } else {
 179                snd_iprintf(buffer, "Mode: professional\n");
 180                snd_iprintf(buffer, "Data: ");
 181                if (!(status[0] & IEC958_AES0_NONAUDIO)) {
 182                        snd_iprintf(buffer, "audio\n");
 183                } else {
 184                        snd_iprintf(buffer, "non-audio\n");
 185                }
 186                snd_iprintf(buffer, "Rate: ");
 187                switch (status[0] & IEC958_AES0_PRO_FS) {
 188                case IEC958_AES0_PRO_FS_44100:
 189                        snd_iprintf(buffer, "44100 Hz\n");
 190                        break;
 191                case IEC958_AES0_PRO_FS_48000:
 192                        snd_iprintf(buffer, "48000 Hz\n");
 193                        break;
 194                case IEC958_AES0_PRO_FS_32000:
 195                        snd_iprintf(buffer, "32000 Hz\n");
 196                        break;
 197                default:
 198                        snd_iprintf(buffer, "unknown\n");
 199                        break;
 200                }
 201                snd_iprintf(buffer, "Rate Locked: ");
 202                if (status[0] & IEC958_AES0_PRO_FREQ_UNLOCKED)
 203                        snd_iprintf(buffer, "no\n");
 204                else
 205                        snd_iprintf(buffer, "yes\n");
 206                snd_iprintf(buffer, "Emphasis: ");
 207                switch (status[0] & IEC958_AES0_PRO_EMPHASIS) {
 208                case IEC958_AES0_PRO_EMPHASIS_CCITT:
 209                        snd_iprintf(buffer, "CCITT J.17\n");
 210                        break;
 211                case IEC958_AES0_PRO_EMPHASIS_NONE:
 212                        snd_iprintf(buffer, "none\n");
 213                        break;
 214                case IEC958_AES0_PRO_EMPHASIS_5015:
 215                        snd_iprintf(buffer, "50/15us\n");
 216                        break;
 217                case IEC958_AES0_PRO_EMPHASIS_NOTID:
 218                default:
 219                        snd_iprintf(buffer, "unknown\n");
 220                        break;
 221                }
 222                snd_iprintf(buffer, "Stereophonic: ");
 223                if ((status[1] & IEC958_AES1_PRO_MODE) == IEC958_AES1_PRO_MODE_STEREOPHONIC) {
 224                        snd_iprintf(buffer, "stereo\n");
 225                } else {
 226                        snd_iprintf(buffer, "not indicated\n");
 227                }
 228                snd_iprintf(buffer, "Userbits: ");
 229                switch (status[1] & IEC958_AES1_PRO_USERBITS) {
 230                case IEC958_AES1_PRO_USERBITS_192:
 231                        snd_iprintf(buffer, "192bit\n");
 232                        break;
 233                case IEC958_AES1_PRO_USERBITS_UDEF:
 234                        snd_iprintf(buffer, "user-defined\n");
 235                        break;
 236                default:
 237                        snd_iprintf(buffer, "unkown\n");
 238                        break;
 239                }
 240                snd_iprintf(buffer, "Sample Bits: ");
 241                switch (status[2] & IEC958_AES2_PRO_SBITS) {
 242                case IEC958_AES2_PRO_SBITS_20:
 243                        snd_iprintf(buffer, "20 bit\n");
 244                        break;
 245                case IEC958_AES2_PRO_SBITS_24:
 246                        snd_iprintf(buffer, "24 bit\n");
 247                        break;
 248                case IEC958_AES2_PRO_SBITS_UDEF:
 249                        snd_iprintf(buffer, "user defined\n");
 250                        break;
 251                default:
 252                        snd_iprintf(buffer, "unknown\n");
 253                        break;
 254                }
 255                snd_iprintf(buffer, "Word Length: ");
 256                switch (status[2] & IEC958_AES2_PRO_WORDLEN) {
 257                case IEC958_AES2_PRO_WORDLEN_22_18:
 258                        snd_iprintf(buffer, "22 bit or 18 bit\n");
 259                        break;
 260                case IEC958_AES2_PRO_WORDLEN_23_19:
 261                        snd_iprintf(buffer, "23 bit or 19 bit\n");
 262                        break;
 263                case IEC958_AES2_PRO_WORDLEN_24_20:
 264                        snd_iprintf(buffer, "24 bit or 20 bit\n");
 265                        break;
 266                case IEC958_AES2_PRO_WORDLEN_20_16:
 267                        snd_iprintf(buffer, "20 bit or 16 bit\n");
 268                        break;
 269                default:
 270                        snd_iprintf(buffer, "unknown\n");
 271                        break;
 272                }
 273        }
 274}
 275
 276static void snd_ca0106_proc_iec958(struct snd_info_entry *entry, 
 277                                       struct snd_info_buffer *buffer)
 278{
 279        struct snd_ca0106 *emu = entry->private_data;
 280        u32 value;
 281
 282        value = snd_ca0106_ptr_read(emu, SAMPLE_RATE_TRACKER_STATUS, 0);
 283        snd_iprintf(buffer, "Status: %s, %s, %s\n",
 284                  (value & 0x100000) ? "Rate Locked" : "Not Rate Locked",
 285                  (value & 0x200000) ? "SPDIF Locked" : "No SPDIF Lock",
 286                  (value & 0x400000) ? "Audio Valid" : "No valid audio" );
 287        snd_iprintf(buffer, "Estimated sample rate: %u\n", 
 288                  ((value & 0xfffff) * 48000) / 0x8000 );
 289        if (value & 0x200000) {
 290                snd_iprintf(buffer, "IEC958/SPDIF input status:\n");
 291                value = snd_ca0106_ptr_read(emu, SPDIF_INPUT_STATUS, 0);
 292                snd_ca0106_proc_dump_iec958(buffer, value);
 293        }
 294
 295        snd_iprintf(buffer, "\n");
 296}
 297
 298static void snd_ca0106_proc_reg_write32(struct snd_info_entry *entry, 
 299                                       struct snd_info_buffer *buffer)
 300{
 301        struct snd_ca0106 *emu = entry->private_data;
 302        unsigned long flags;
 303        char line[64];
 304        u32 reg, val;
 305        while (!snd_info_get_line(buffer, line, sizeof(line))) {
 306                if (sscanf(line, "%x %x", &reg, &val) != 2)
 307                        continue;
 308                if ((reg < 0x40) && (reg >=0) && (val <= 0xffffffff) ) {
 309                        spin_lock_irqsave(&emu->emu_lock, flags);
 310                        outl(val, emu->port + (reg & 0xfffffffc));
 311                        spin_unlock_irqrestore(&emu->emu_lock, flags);
 312                }
 313        }
 314}
 315
 316static void snd_ca0106_proc_reg_read32(struct snd_info_entry *entry, 
 317                                       struct snd_info_buffer *buffer)
 318{
 319        struct snd_ca0106 *emu = entry->private_data;
 320        unsigned long value;
 321        unsigned long flags;
 322        int i;
 323        snd_iprintf(buffer, "Registers:\n\n");
 324        for(i = 0; i < 0x20; i+=4) {
 325                spin_lock_irqsave(&emu->emu_lock, flags);
 326                value = inl(emu->port + i);
 327                spin_unlock_irqrestore(&emu->emu_lock, flags);
 328                snd_iprintf(buffer, "Register %02X: %08lX\n", i, value);
 329        }
 330}
 331
 332static void snd_ca0106_proc_reg_read16(struct snd_info_entry *entry, 
 333                                       struct snd_info_buffer *buffer)
 334{
 335        struct snd_ca0106 *emu = entry->private_data;
 336        unsigned int value;
 337        unsigned long flags;
 338        int i;
 339        snd_iprintf(buffer, "Registers:\n\n");
 340        for(i = 0; i < 0x20; i+=2) {
 341                spin_lock_irqsave(&emu->emu_lock, flags);
 342                value = inw(emu->port + i);
 343                spin_unlock_irqrestore(&emu->emu_lock, flags);
 344                snd_iprintf(buffer, "Register %02X: %04X\n", i, value);
 345        }
 346}
 347
 348static void snd_ca0106_proc_reg_read8(struct snd_info_entry *entry, 
 349                                       struct snd_info_buffer *buffer)
 350{
 351        struct snd_ca0106 *emu = entry->private_data;
 352        unsigned int value;
 353        unsigned long flags;
 354        int i;
 355        snd_iprintf(buffer, "Registers:\n\n");
 356        for(i = 0; i < 0x20; i+=1) {
 357                spin_lock_irqsave(&emu->emu_lock, flags);
 358                value = inb(emu->port + i);
 359                spin_unlock_irqrestore(&emu->emu_lock, flags);
 360                snd_iprintf(buffer, "Register %02X: %02X\n", i, value);
 361        }
 362}
 363
 364static void snd_ca0106_proc_reg_read1(struct snd_info_entry *entry, 
 365                                       struct snd_info_buffer *buffer)
 366{
 367        struct snd_ca0106 *emu = entry->private_data;
 368        unsigned long value;
 369        int i,j;
 370
 371        snd_iprintf(buffer, "Registers\n");
 372        for(i = 0; i < 0x40; i++) {
 373                snd_iprintf(buffer, "%02X: ",i);
 374                for (j = 0; j < 4; j++) {
 375                  value = snd_ca0106_ptr_read(emu, i, j);
 376                  snd_iprintf(buffer, "%08lX ", value);
 377                }
 378                snd_iprintf(buffer, "\n");
 379        }
 380}
 381
 382static void snd_ca0106_proc_reg_read2(struct snd_info_entry *entry, 
 383                                       struct snd_info_buffer *buffer)
 384{
 385        struct snd_ca0106 *emu = entry->private_data;
 386        unsigned long value;
 387        int i,j;
 388
 389        snd_iprintf(buffer, "Registers\n");
 390        for(i = 0x40; i < 0x80; i++) {
 391                snd_iprintf(buffer, "%02X: ",i);
 392                for (j = 0; j < 4; j++) {
 393                  value = snd_ca0106_ptr_read(emu, i, j);
 394                  snd_iprintf(buffer, "%08lX ", value);
 395                }
 396                snd_iprintf(buffer, "\n");
 397        }
 398}
 399
 400static void snd_ca0106_proc_reg_write(struct snd_info_entry *entry, 
 401                                       struct snd_info_buffer *buffer)
 402{
 403        struct snd_ca0106 *emu = entry->private_data;
 404        char line[64];
 405        unsigned int reg, channel_id , val;
 406        while (!snd_info_get_line(buffer, line, sizeof(line))) {
 407                if (sscanf(line, "%x %x %x", &reg, &channel_id, &val) != 3)
 408                        continue;
 409                if ((reg < 0x80) && (reg >=0) && (val <= 0xffffffff) && (channel_id >=0) && (channel_id <= 3) )
 410                        snd_ca0106_ptr_write(emu, reg, channel_id, val);
 411        }
 412}
 413
 414static void snd_ca0106_proc_i2c_write(struct snd_info_entry *entry, 
 415                                       struct snd_info_buffer *buffer)
 416{
 417        struct snd_ca0106 *emu = entry->private_data;
 418        char line[64];
 419        unsigned int reg, val;
 420        while (!snd_info_get_line(buffer, line, sizeof(line))) {
 421                if (sscanf(line, "%x %x", &reg, &val) != 2)
 422                        continue;
 423                if ((reg <= 0x7f) || (val <= 0x1ff)) {
 424                        snd_ca0106_i2c_write(emu, reg, val);
 425                }
 426        }
 427}
 428
 429int __devinit snd_ca0106_proc_init(struct snd_ca0106 * emu)
 430{
 431        struct snd_info_entry *entry;
 432        
 433        if(! snd_card_proc_new(emu->card, "iec958", &entry))
 434                snd_info_set_text_ops(entry, emu, snd_ca0106_proc_iec958);
 435        if(! snd_card_proc_new(emu->card, "ca0106_reg32", &entry)) {
 436                snd_info_set_text_ops(entry, emu, snd_ca0106_proc_reg_read32);
 437                entry->c.text.write = snd_ca0106_proc_reg_write32;
 438                entry->mode |= S_IWUSR;
 439        }
 440        if(! snd_card_proc_new(emu->card, "ca0106_reg16", &entry))
 441                snd_info_set_text_ops(entry, emu, snd_ca0106_proc_reg_read16);
 442        if(! snd_card_proc_new(emu->card, "ca0106_reg8", &entry))
 443                snd_info_set_text_ops(entry, emu, snd_ca0106_proc_reg_read8);
 444        if(! snd_card_proc_new(emu->card, "ca0106_regs1", &entry)) {
 445                snd_info_set_text_ops(entry, emu, snd_ca0106_proc_reg_read1);
 446                entry->c.text.write = snd_ca0106_proc_reg_write;
 447                entry->mode |= S_IWUSR;
 448        }
 449        if(! snd_card_proc_new(emu->card, "ca0106_i2c", &entry)) {
 450                entry->c.text.write = snd_ca0106_proc_i2c_write;
 451                entry->private_data = emu;
 452                entry->mode |= S_IWUSR;
 453        }
 454        if(! snd_card_proc_new(emu->card, "ca0106_regs2", &entry)) 
 455                snd_info_set_text_ops(entry, emu, snd_ca0106_proc_reg_read2);
 456        return 0;
 457}
 458
 459#endif /* CONFIG_PROC_FS */
 460