kernel/sound/pci/ca0106/ca0106_proc.c

   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 initially 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 <linux/delay.h>
  64 #include <linux/init.h>
  65 #include <linux/interrupt.h>
  66 #include <linux/moduleparam.h>
  67 #include <linux/io.h>
  68 #include <sound/core.h>
  69 #include <sound/initval.h>
  70 #include <sound/pcm.h>
  71 #include <sound/ac97_codec.h>
  72 #include <sound/info.h>
  73 #include <sound/asoundef.h>
  74
  75 #include "ca0106.h"
  76
  77
  78 struct snd_ca0106_category_str {
  79         int val;
  80         const char *name;
  81 };
  82
  83 static struct snd_ca0106_category_str snd_ca0106_con_category[] = {
  84         { IEC958_AES1_CON_DAT, "DAT" },
  85         { IEC958_AES1_CON_VCR, "VCR" },
  86         { IEC958_AES1_CON_MICROPHONE, "microphone" },
  87         { IEC958_AES1_CON_SYNTHESIZER, "synthesizer" },
  88         { IEC958_AES1_CON_RATE_CONVERTER, "rate converter" },
  89         { IEC958_AES1_CON_MIXER, "mixer" },
  90         { IEC958_AES1_CON_SAMPLER, "sampler" },
  91         { IEC958_AES1_CON_PCM_CODER, "PCM coder" },
  92         { IEC958_AES1_CON_IEC908_CD, "CD" },
  93         { IEC958_AES1_CON_NON_IEC908_CD, "non-IEC908 CD" },
  94         { IEC958_AES1_CON_GENERAL, "general" },
  95 };
  96
  97
  98 static void snd_ca0106_proc_dump_iec958( struct snd_info_buffer *buffer, u32 value)
  99 {
 100         int i;
 101         u32 status[4];
 102         status[0] = value & 0xff;
 103         status[1] = (value >> 8) & 0xff;
 104         status[2] = (value >> 16)  & 0xff;
 105         status[3] = (value >> 24)  & 0xff;
 106
 107         if (! (status[0] & IEC958_AES0_PROFESSIONAL)) {
 108                 /* consumer */
 109                 snd_iprintf(buffer, "Mode: consumer\n");
 110                 snd_iprintf(buffer, "Data: ");
 111                 if (!(status[0] & IEC958_AES0_NONAUDIO)) {
 112                         snd_iprintf(buffer, "audio\n");
 113                 } else {
 114                         snd_iprintf(buffer, "non-audio\n");
 115                 }
 116                 snd_iprintf(buffer, "Rate: ");
 117                 switch (status[3] & IEC958_AES3_CON_FS) {
 118                 case IEC958_AES3_CON_FS_44100:
 119                         snd_iprintf(buffer, "44100 Hz\n");
 120                         break;
 121                 case IEC958_AES3_CON_FS_48000:
 122                         snd_iprintf(buffer, "48000 Hz\n");
 123                         break;
 124                 case IEC958_AES3_CON_FS_32000:
 125                         snd_iprintf(buffer, "32000 Hz\n");
 126                         break;
 127                 default:
 128                         snd_iprintf(buffer, "unknown\n");
 129                         break;
 130                 }
 131                 snd_iprintf(buffer, "Copyright: ");
 132                 if (status[0] & IEC958_AES0_CON_NOT_COPYRIGHT) {
 133                         snd_iprintf(buffer, "permitted\n");
 134                 } else {
 135                         snd_iprintf(buffer, "protected\n");
 136                 }
 137                 snd_iprintf(buffer, "Emphasis: ");
 138                 if ((status[0] & IEC958_AES0_CON_EMPHASIS) != IEC958_AES0_CON_EMPHASIS_5015) {
 139                         snd_iprintf(buffer, "none\n");
 140                 } else {
 141                         snd_iprintf(buffer, "50/15us\n");
 142                 }
 143                 snd_iprintf(buffer, "Category: ");
 144                 for (i = 0; i < ARRAY_SIZE(snd_ca0106_con_category); i++) {
 145                         if ((status[1] & IEC958_AES1_CON_CATEGORY) == snd_ca0106_con_category[i].val) {
 146                                 snd_iprintf(buffer, "%s\n", snd_ca0106_con_category[i].name);
 147                                 break;
 148                         }
 149                 }
 150                 if (i >= ARRAY_SIZE(snd_ca0106_con_category)) {
 151                         snd_iprintf(buffer, "unknown 0x%x\n", status[1] & IEC958_AES1_CON_CATEGORY);
 152                 }
 153                 snd_iprintf(buffer, "Original: ");
 154                 if (status[1] & IEC958_AES1_CON_ORIGINAL) {
 155                         snd_iprintf(buffer, "original\n");
 156                 } else {
 157                         snd_iprintf(buffer, "1st generation\n");
 158                 }
 159                 snd_iprintf(buffer, "Clock: ");
 160                 switch (status[3] & IEC958_AES3_CON_CLOCK) {
 161                 case IEC958_AES3_CON_CLOCK_1000PPM:
 162                         snd_iprintf(buffer, "1000 ppm\n");
 163                         break;
 164                 case IEC958_AES3_CON_CLOCK_50PPM:
 165                         snd_iprintf(buffer, "50 ppm\n");
 166                         break;
 167                 case IEC958_AES3_CON_CLOCK_VARIABLE:
 168                         snd_iprintf(buffer, "variable pitch\n");
 169                         break;
 170                 default:
 171                         snd_iprintf(buffer, "unknown\n");
 172                         break;
 173                 }
 174         } else {
 175                 snd_iprintf(buffer, "Mode: professional\n");
 176                 snd_iprintf(buffer, "Data: ");
 177                 if (!(status[0] & IEC958_AES0_NONAUDIO)) {
 178                         snd_iprintf(buffer, "audio\n");
 179                 } else {
 180                         snd_iprintf(buffer, "non-audio\n");
 181                 }
 182                 snd_iprintf(buffer, "Rate: ");
 183                 switch (status[0] & IEC958_AES0_PRO_FS) {
 184                 case IEC958_AES0_PRO_FS_44100:
 185                         snd_iprintf(buffer, "44100 Hz\n");
 186                         break;
 187                 case IEC958_AES0_PRO_FS_48000:
 188                         snd_iprintf(buffer, "48000 Hz\n");
 189                         break;
 190                 case IEC958_AES0_PRO_FS_32000:
 191                         snd_iprintf(buffer, "32000 Hz\n");
 192                         break;
 193                 default:
 194                         snd_iprintf(buffer, "unknown\n");
 195                         break;
 196                 }
 197                 snd_iprintf(buffer, "Rate Locked: ");
 198                 if (status[0] & IEC958_AES0_PRO_FREQ_UNLOCKED)
 199                         snd_iprintf(buffer, "no\n");
 200                 else
 201                         snd_iprintf(buffer, "yes\n");
 202                 snd_iprintf(buffer, "Emphasis: ");
 203                 switch (status[0] & IEC958_AES0_PRO_EMPHASIS) {
 204                 case IEC958_AES0_PRO_EMPHASIS_CCITT:
 205                         snd_iprintf(buffer, "CCITT J.17\n");
 206                         break;
 207                 case IEC958_AES0_PRO_EMPHASIS_NONE:
 208                         snd_iprintf(buffer, "none\n");
 209                         break;
 210                 case IEC958_AES0_PRO_EMPHASIS_5015:
 211                         snd_iprintf(buffer, "50/15us\n");
 212                         break;
 213                 case IEC958_AES0_PRO_EMPHASIS_NOTID:
 214                 default:
 215                         snd_iprintf(buffer, "unknown\n");
 216                         break;
 217                 }
 218                 snd_iprintf(buffer, "Stereophonic: ");
 219                 if ((status[1] & IEC958_AES1_PRO_MODE) == IEC958_AES1_PRO_MODE_STEREOPHONIC) {
 220                         snd_iprintf(buffer, "stereo\n");
 221                 } else {
 222                         snd_iprintf(buffer, "not indicated\n");
 223                 }
 224                 snd_iprintf(buffer, "Userbits: ");
 225                 switch (status[1] & IEC958_AES1_PRO_USERBITS) {
 226                 case IEC958_AES1_PRO_USERBITS_192:
 227                         snd_iprintf(buffer, "192bit\n");
 228                         break;
 229                 case IEC958_AES1_PRO_USERBITS_UDEF:
 230                         snd_iprintf(buffer, "user-defined\n");
 231                         break;
 232                 default:
 233                         snd_iprintf(buffer, "unknown\n");
 234                         break;
 235                 }
 236                 snd_iprintf(buffer, "Sample Bits: ");
 237                 switch (status[2] & IEC958_AES2_PRO_SBITS) {
 238                 case IEC958_AES2_PRO_SBITS_20:
 239                         snd_iprintf(buffer, "20 bit\n");
 240                         break;
 241                 case IEC958_AES2_PRO_SBITS_24:
 242                         snd_iprintf(buffer, "24 bit\n");
 243                         break;
 244                 case IEC958_AES2_PRO_SBITS_UDEF:
 245                         snd_iprintf(buffer, "user defined\n");
 246                         break;
 247                 default:
 248                         snd_iprintf(buffer, "unknown\n");
 249                         break;
 250                 }
 251                 snd_iprintf(buffer, "Word Length: ");
 252                 switch (status[2] & IEC958_AES2_PRO_WORDLEN) {
 253                 case IEC958_AES2_PRO_WORDLEN_22_18:
 254                         snd_iprintf(buffer, "22 bit or 18 bit\n");
 255                         break;
 256                 case IEC958_AES2_PRO_WORDLEN_23_19:
 257                         snd_iprintf(buffer, "23 bit or 19 bit\n");
 258                         break;
 259                 case IEC958_AES2_PRO_WORDLEN_24_20:
 260                         snd_iprintf(buffer, "24 bit or 20 bit\n");
 261                         break;
 262                 case IEC958_AES2_PRO_WORDLEN_20_16:
 263                         snd_iprintf(buffer, "20 bit or 16 bit\n");
 264                         break;
 265                 default:
 266                         snd_iprintf(buffer, "unknown\n");
 267                         break;
 268                 }
 269         }
 270 }
 271
 272 static void snd_ca0106_proc_iec958(struct snd_info_entry *entry,
 273                                        struct snd_info_buffer *buffer)
 274 {
 275         struct snd_ca0106 *emu = entry->private_data;
 276         u32 value;
 277
 278         value = snd_ca0106_ptr_read(emu, SAMPLE_RATE_TRACKER_STATUS, 0);
 279         snd_iprintf(buffer, "Status: %s, %s, %s\n",
 280                   (value & 0x100000) ? "Rate Locked" : "Not Rate Locked",
 281                   (value & 0x200000) ? "SPDIF Locked" : "No SPDIF Lock",
 282                   (value & 0x400000) ? "Audio Valid" : "No valid audio" );
 283         snd_iprintf(buffer, "Estimated sample rate: %u\n",
 284                   ((value & 0xfffff) * 48000) / 0x8000 );
 285         if (value & 0x200000) {
 286                 snd_iprintf(buffer, "IEC958/SPDIF input status:\n");
 287                 value = snd_ca0106_ptr_read(emu, SPDIF_INPUT_STATUS, 0);
 288                 snd_ca0106_proc_dump_iec958(buffer, value);
 289         }
 290
 291         snd_iprintf(buffer, "\n");
 292 }
 293
 294 static void snd_ca0106_proc_reg_write32(struct snd_info_entry *entry,
 295                                        struct snd_info_buffer *buffer)
 296 {
 297         struct snd_ca0106 *emu = entry->private_data;
 298         unsigned long flags;
 299         char line[64];
 300         u32 reg, val;
 301         while (!snd_info_get_line(buffer, line, sizeof(line))) {
 302                 if (sscanf(line, "%x %x", &reg, &val) != 2)
 303                         continue;
 304                 if (reg < 0x40 && val <= 0xffffffff) {
 305                         spin_lock_irqsave(&emu->emu_lock, flags);
 306                         outl(val, emu->port + (reg & 0xfffffffc));
 307                         spin_unlock_irqrestore(&emu->emu_lock, flags);
 308                 }
 309         }
 310 }
 311
 312 static void snd_ca0106_proc_reg_read32(struct snd_info_entry *entry,
 313                                        struct snd_info_buffer *buffer)
 314 {
 315         struct snd_ca0106 *emu = entry->private_data;
 316         unsigned long value;
 317         unsigned long flags;
 318         int i;
 319         snd_iprintf(buffer, "Registers:\n\n");
 320         for(i = 0; i < 0x20; i+=4) {
 321                 spin_lock_irqsave(&emu->emu_lock, flags);
 322                 value = inl(emu->port + i);
 323                 spin_unlock_irqrestore(&emu->emu_lock, flags);
 324                 snd_iprintf(buffer, "Register %02X: %08lX\n", i, value);
 325         }
 326 }
 327
 328 static void snd_ca0106_proc_reg_read16(struct snd_info_entry *entry,
 329                                        struct snd_info_buffer *buffer)
 330 {
 331         struct snd_ca0106 *emu = entry->private_data;
 332         unsigned int value;
 333         unsigned long flags;
 334         int i;
 335         snd_iprintf(buffer, "Registers:\n\n");
 336         for(i = 0; i < 0x20; i+=2) {
 337                 spin_lock_irqsave(&emu->emu_lock, flags);
 338                 value = inw(emu->port + i);
 339                 spin_unlock_irqrestore(&emu->emu_lock, flags);
 340                 snd_iprintf(buffer, "Register %02X: %04X\n", i, value);
 341         }
 342 }
 343
 344 static void snd_ca0106_proc_reg_read8(struct snd_info_entry *entry,
 345                                        struct snd_info_buffer *buffer)
 346 {
 347         struct snd_ca0106 *emu = entry->private_data;
 348         unsigned int value;
 349         unsigned long flags;
 350         int i;
 351         snd_iprintf(buffer, "Registers:\n\n");
 352         for(i = 0; i < 0x20; i+=1) {
 353                 spin_lock_irqsave(&emu->emu_lock, flags);
 354                 value = inb(emu->port + i);
 355                 spin_unlock_irqrestore(&emu->emu_lock, flags);
 356                 snd_iprintf(buffer, "Register %02X: %02X\n", i, value);
 357         }
 358 }
 359
 360 static void snd_ca0106_proc_reg_read1(struct snd_info_entry *entry,
 361                                        struct snd_info_buffer *buffer)
 362 {
 363         struct snd_ca0106 *emu = entry->private_data;
 364         unsigned long value;
 365         int i,j;
 366
 367         snd_iprintf(buffer, "Registers\n");
 368         for(i = 0; i < 0x40; i++) {
 369                 snd_iprintf(buffer, "%02X: ",i);
 370                 for (j = 0; j < 4; j++) {
 371                   value = snd_ca0106_ptr_read(emu, i, j);
 372                   snd_iprintf(buffer, "%08lX ", value);
 373                 }
 374                 snd_iprintf(buffer, "\n");
 375         }
 376 }
 377
 378 static void snd_ca0106_proc_reg_read2(struct snd_info_entry *entry,
 379                                        struct snd_info_buffer *buffer)
 380 {
 381         struct snd_ca0106 *emu = entry->private_data;
 382         unsigned long value;
 383         int i,j;
 384
 385         snd_iprintf(buffer, "Registers\n");
 386         for(i = 0x40; i < 0x80; i++) {
 387                 snd_iprintf(buffer, "%02X: ",i);
 388                 for (j = 0; j < 4; j++) {
 389                   value = snd_ca0106_ptr_read(emu, i, j);
 390                   snd_iprintf(buffer, "%08lX ", value);
 391                 }
 392                 snd_iprintf(buffer, "\n");
 393         }
 394 }
 395
 396 static void snd_ca0106_proc_reg_write(struct snd_info_entry *entry,
 397                                        struct snd_info_buffer *buffer)
 398 {
 399         struct snd_ca0106 *emu = entry->private_data;
 400         char line[64];
 401         unsigned int reg, channel_id , val;
 402         while (!snd_info_get_line(buffer, line, sizeof(line))) {
 403                 if (sscanf(line, "%x %x %x", &reg, &channel_id, &val) != 3)
 404                         continue;
 405                 if (reg < 0x80 && val <= 0xffffffff && channel_id <= 3)
 406                         snd_ca0106_ptr_write(emu, reg, channel_id, val);
 407         }
 408 }
 409
 410 static void snd_ca0106_proc_i2c_write(struct snd_info_entry *entry,
 411                                        struct snd_info_buffer *buffer)
 412 {
 413         struct snd_ca0106 *emu = entry->private_data;
 414         char line[64];
 415         unsigned int reg, val;
 416         while (!snd_info_get_line(buffer, line, sizeof(line))) {
 417                 if (sscanf(line, "%x %x", &reg, &val) != 2)
 418                         continue;
 419                 if ((reg <= 0x7f) || (val <= 0x1ff)) {
 420                         snd_ca0106_i2c_write(emu, reg, val);
 421                 }
 422         }
 423 }
 424
 425 int snd_ca0106_proc_init(struct snd_ca0106 *emu)
 426 {
 427         struct snd_info_entry *entry;
 428
 429         if(! snd_card_proc_new(emu->card, "iec958", &entry))
 430                 snd_info_set_text_ops(entry, emu, snd_ca0106_proc_iec958);
 431         if(! snd_card_proc_new(emu->card, "ca0106_reg32", &entry)) {
 432                 snd_info_set_text_ops(entry, emu, snd_ca0106_proc_reg_read32);
 433                 entry->c.text.write = snd_ca0106_proc_reg_write32;
 434                 entry->mode |= S_IWUSR;
 435         }
 436         if(! snd_card_proc_new(emu->card, "ca0106_reg16", &entry))
 437                 snd_info_set_text_ops(entry, emu, snd_ca0106_proc_reg_read16);
 438         if(! snd_card_proc_new(emu->card, "ca0106_reg8", &entry))
 439                 snd_info_set_text_ops(entry, emu, snd_ca0106_proc_reg_read8);
 440         if(! snd_card_proc_new(emu->card, "ca0106_regs1", &entry)) {
 441                 snd_info_set_text_ops(entry, emu, snd_ca0106_proc_reg_read1);
 442                 entry->c.text.write = snd_ca0106_proc_reg_write;
 443                 entry->mode |= S_IWUSR;
 444         }
 445         if(! snd_card_proc_new(emu->card, "ca0106_i2c", &entry)) {
 446                 entry->c.text.write = snd_ca0106_proc_i2c_write;
 447                 entry->private_data = emu;
 448                 entry->mode |= S_IWUSR;
 449         }
 450         if(! snd_card_proc_new(emu->card, "ca0106_regs2", &entry))
 451                 snd_info_set_text_ops(entry, emu, snd_ca0106_proc_reg_read2);
 452         return 0;
 453 }