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 <sound/core.h>
  68 #include <sound/initval.h>
  69 #include <sound/pcm.h>
  70 #include <sound/ac97_codec.h>
  71 #include <sound/info.h>
  72 #include <sound/asoundef.h>
  73 #include <asm/io.h>
  74
  75 #include "ca0106.h"
  76
  77
  78 #ifdef CONFIG_PROC_FS
  79
  80 struct snd_ca0106_category_str {
  81         int val;
  82         const char *name;
  83 };
  84
  85 static struct snd_ca0106_category_str snd_ca0106_con_category[] = {
  86         { IEC958_AES1_CON_DAT, "DAT" },
  87         { IEC958_AES1_CON_VCR, "VCR" },
  88         { IEC958_AES1_CON_MICROPHONE, "microphone" },
  89         { IEC958_AES1_CON_SYNTHESIZER, "synthesizer" },
  90         { IEC958_AES1_CON_RATE_CONVERTER, "rate converter" },
  91         { IEC958_AES1_CON_MIXER, "mixer" },
  92         { IEC958_AES1_CON_SAMPLER, "sampler" },
  93         { IEC958_AES1_CON_PCM_CODER, "PCM coder" },
  94         { IEC958_AES1_CON_IEC908_CD, "CD" },
  95         { IEC958_AES1_CON_NON_IEC908_CD, "non-IEC908 CD" },
  96         { IEC958_AES1_CON_GENERAL, "general" },
  97 };
  98
  99
 100 static void snd_ca0106_proc_dump_iec958( struct snd_info_buffer *buffer, u32 value)
 101 {
 102         int i;
 103         u32 status[4];
 104         status[0] = value & 0xff;
 105         status[1] = (value >> 8) & 0xff;
 106         status[2] = (value >> 16)  & 0xff;
 107         status[3] = (value >> 24)  & 0xff;
 108
 109         if (! (status[0] & IEC958_AES0_PROFESSIONAL)) {
 110                 /* consumer */
 111                 snd_iprintf(buffer, "Mode: consumer\n");
 112                 snd_iprintf(buffer, "Data: ");
 113                 if (!(status[0] & IEC958_AES0_NONAUDIO)) {
 114                         snd_iprintf(buffer, "audio\n");
 115                 } else {
 116                         snd_iprintf(buffer, "non-audio\n");
 117                 }
 118                 snd_iprintf(buffer, "Rate: ");
 119                 switch (status[3] & IEC958_AES3_CON_FS) {
 120                 case IEC958_AES3_CON_FS_44100:
 121                         snd_iprintf(buffer, "44100 Hz\n");
 122                         break;
 123                 case IEC958_AES3_CON_FS_48000:
 124                         snd_iprintf(buffer, "48000 Hz\n");
 125                         break;
 126                 case IEC958_AES3_CON_FS_32000:
 127                         snd_iprintf(buffer, "32000 Hz\n");
 128                         break;
 129                 default:
 130                         snd_iprintf(buffer, "unknown\n");
 131                         break;
 132                 }
 133                 snd_iprintf(buffer, "Copyright: ");
 134                 if (status[0] & IEC958_AES0_CON_NOT_COPYRIGHT) {
 135                         snd_iprintf(buffer, "permitted\n");
 136                 } else {
 137                         snd_iprintf(buffer, "protected\n");
 138                 }
 139                 snd_iprintf(buffer, "Emphasis: ");
 140                 if ((status[0] & IEC958_AES0_CON_EMPHASIS) != IEC958_AES0_CON_EMPHASIS_5015) {
 141                         snd_iprintf(buffer, "none\n");
 142                 } else {
 143                         snd_iprintf(buffer, "50/15us\n");
 144                 }
 145                 snd_iprintf(buffer, "Category: ");
 146                 for (i = 0; i < ARRAY_SIZE(snd_ca0106_con_category); i++) {
 147                         if ((status[1] & IEC958_AES1_CON_CATEGORY) == snd_ca0106_con_category[i].val) {
 148                                 snd_iprintf(buffer, "%s\n", snd_ca0106_con_category[i].name);
 149                                 break;
 150                         }
 151                 }
 152                 if (i >= ARRAY_SIZE(snd_ca0106_con_category)) {
 153                         snd_iprintf(buffer, "unknown 0x%x\n", status[1] & IEC958_AES1_CON_CATEGORY);
 154                 }
 155                 snd_iprintf(buffer, "Original: ");
 156                 if (status[1] & IEC958_AES1_CON_ORIGINAL) {
 157                         snd_iprintf(buffer, "original\n");
 158                 } else {
 159                         snd_iprintf(buffer, "1st generation\n");
 160                 }
 161                 snd_iprintf(buffer, "Clock: ");
 162                 switch (status[3] & IEC958_AES3_CON_CLOCK) {
 163                 case IEC958_AES3_CON_CLOCK_1000PPM:
 164                         snd_iprintf(buffer, "1000 ppm\n");
 165                         break;
 166                 case IEC958_AES3_CON_CLOCK_50PPM:
 167                         snd_iprintf(buffer, "50 ppm\n");
 168                         break;
 169                 case IEC958_AES3_CON_CLOCK_VARIABLE:
 170                         snd_iprintf(buffer, "variable pitch\n");
 171                         break;
 172                 default:
 173                         snd_iprintf(buffer, "unknown\n");
 174                         break;
 175                 }
 176         } else {
 177                 snd_iprintf(buffer, "Mode: professional\n");
 178                 snd_iprintf(buffer, "Data: ");
 179                 if (!(status[0] & IEC958_AES0_NONAUDIO)) {
 180                         snd_iprintf(buffer, "audio\n");
 181                 } else {
 182                         snd_iprintf(buffer, "non-audio\n");
 183                 }
 184                 snd_iprintf(buffer, "Rate: ");
 185                 switch (status[0] & IEC958_AES0_PRO_FS) {
 186                 case IEC958_AES0_PRO_FS_44100:
 187                         snd_iprintf(buffer, "44100 Hz\n");
 188                         break;
 189                 case IEC958_AES0_PRO_FS_48000:
 190                         snd_iprintf(buffer, "48000 Hz\n");
 191                         break;
 192                 case IEC958_AES0_PRO_FS_32000:
 193                         snd_iprintf(buffer, "32000 Hz\n");
 194                         break;
 195                 default:
 196                         snd_iprintf(buffer, "unknown\n");
 197                         break;
 198                 }
 199                 snd_iprintf(buffer, "Rate Locked: ");
 200                 if (status[0] & IEC958_AES0_PRO_FREQ_UNLOCKED)
 201                         snd_iprintf(buffer, "no\n");
 202                 else
 203                         snd_iprintf(buffer, "yes\n");
 204                 snd_iprintf(buffer, "Emphasis: ");
 205                 switch (status[0] & IEC958_AES0_PRO_EMPHASIS) {
 206                 case IEC958_AES0_PRO_EMPHASIS_CCITT:
 207                         snd_iprintf(buffer, "CCITT J.17\n");
 208                         break;
 209                 case IEC958_AES0_PRO_EMPHASIS_NONE:
 210                         snd_iprintf(buffer, "none\n");
 211                         break;
 212                 case IEC958_AES0_PRO_EMPHASIS_5015:
 213                         snd_iprintf(buffer, "50/15us\n");
 214                         break;
 215                 case IEC958_AES0_PRO_EMPHASIS_NOTID:
 216                 default:
 217                         snd_iprintf(buffer, "unknown\n");
 218                         break;
 219                 }
 220                 snd_iprintf(buffer, "Stereophonic: ");
 221                 if ((status[1] & IEC958_AES1_PRO_MODE) == IEC958_AES1_PRO_MODE_STEREOPHONIC) {
 222                         snd_iprintf(buffer, "stereo\n");
 223                 } else {
 224                         snd_iprintf(buffer, "not indicated\n");
 225                 }
 226                 snd_iprintf(buffer, "Userbits: ");
 227                 switch (status[1] & IEC958_AES1_PRO_USERBITS) {
 228                 case IEC958_AES1_PRO_USERBITS_192:
 229                         snd_iprintf(buffer, "192bit\n");
 230                         break;
 231                 case IEC958_AES1_PRO_USERBITS_UDEF:
 232                         snd_iprintf(buffer, "user-defined\n");
 233                         break;
 234                 default:
 235                         snd_iprintf(buffer, "unknown\n");
 236                         break;
 237                 }
 238                 snd_iprintf(buffer, "Sample Bits: ");
 239                 switch (status[2] & IEC958_AES2_PRO_SBITS) {
 240                 case IEC958_AES2_PRO_SBITS_20:
 241                         snd_iprintf(buffer, "20 bit\n");
 242                         break;
 243                 case IEC958_AES2_PRO_SBITS_24:
 244                         snd_iprintf(buffer, "24 bit\n");
 245                         break;
 246                 case IEC958_AES2_PRO_SBITS_UDEF:
 247                         snd_iprintf(buffer, "user defined\n");
 248                         break;
 249                 default:
 250                         snd_iprintf(buffer, "unknown\n");
 251                         break;
 252                 }
 253                 snd_iprintf(buffer, "Word Length: ");
 254                 switch (status[2] & IEC958_AES2_PRO_WORDLEN) {
 255                 case IEC958_AES2_PRO_WORDLEN_22_18:
 256                         snd_iprintf(buffer, "22 bit or 18 bit\n");
 257                         break;
 258                 case IEC958_AES2_PRO_WORDLEN_23_19:
 259                         snd_iprintf(buffer, "23 bit or 19 bit\n");
 260                         break;
 261                 case IEC958_AES2_PRO_WORDLEN_24_20:
 262                         snd_iprintf(buffer, "24 bit or 20 bit\n");
 263                         break;
 264                 case IEC958_AES2_PRO_WORDLEN_20_16:
 265                         snd_iprintf(buffer, "20 bit or 16 bit\n");
 266                         break;
 267                 default:
 268                         snd_iprintf(buffer, "unknown\n");
 269                         break;
 270                 }
 271         }
 272 }
 273
 274 static void snd_ca0106_proc_iec958(struct snd_info_entry *entry,
 275                                        struct snd_info_buffer *buffer)
 276 {
 277         struct snd_ca0106 *emu = entry->private_data;
 278         u32 value;
 279
 280         value = snd_ca0106_ptr_read(emu, SAMPLE_RATE_TRACKER_STATUS, 0);
 281         snd_iprintf(buffer, "Status: %s, %s, %s\n",
 282                   (value & 0x100000) ? "Rate Locked" : "Not Rate Locked",
 283                   (value & 0x200000) ? "SPDIF Locked" : "No SPDIF Lock",
 284                   (value & 0x400000) ? "Audio Valid" : "No valid audio" );
 285         snd_iprintf(buffer, "Estimated sample rate: %u\n",
 286                   ((value & 0xfffff) * 48000) / 0x8000 );
 287         if (value & 0x200000) {
 288                 snd_iprintf(buffer, "IEC958/SPDIF input status:\n");
 289                 value = snd_ca0106_ptr_read(emu, SPDIF_INPUT_STATUS, 0);
 290                 snd_ca0106_proc_dump_iec958(buffer, value);
 291         }
 292
 293         snd_iprintf(buffer, "\n");
 294 }
 295
 296 static void snd_ca0106_proc_reg_write32(struct snd_info_entry *entry,
 297                                        struct snd_info_buffer *buffer)
 298 {
 299         struct snd_ca0106 *emu = entry->private_data;
 300         unsigned long flags;
 301         char line[64];
 302         u32 reg, val;
 303         while (!snd_info_get_line(buffer, line, sizeof(line))) {
 304                 if (sscanf(line, "%x %x", &reg, &val) != 2)
 305                         continue;
 306                 if (reg < 0x40 && val <= 0xffffffff) {
 307                         spin_lock_irqsave(&emu->emu_lock, flags);
 308                         outl(val, emu->port + (reg & 0xfffffffc));
 309                         spin_unlock_irqrestore(&emu->emu_lock, flags);
 310                 }
 311         }
 312 }
 313
 314 static void snd_ca0106_proc_reg_read32(struct snd_info_entry *entry,
 315                                        struct snd_info_buffer *buffer)
 316 {
 317         struct snd_ca0106 *emu = entry->private_data;
 318         unsigned long value;
 319         unsigned long flags;
 320         int i;
 321         snd_iprintf(buffer, "Registers:\n\n");
 322         for(i = 0; i < 0x20; i+=4) {
 323                 spin_lock_irqsave(&emu->emu_lock, flags);
 324                 value = inl(emu->port + i);
 325                 spin_unlock_irqrestore(&emu->emu_lock, flags);
 326                 snd_iprintf(buffer, "Register %02X: %08lX\n", i, value);
 327         }
 328 }
 329
 330 static void snd_ca0106_proc_reg_read16(struct snd_info_entry *entry,
 331                                        struct snd_info_buffer *buffer)
 332 {
 333         struct snd_ca0106 *emu = entry->private_data;
 334         unsigned int value;
 335         unsigned long flags;
 336         int i;
 337         snd_iprintf(buffer, "Registers:\n\n");
 338         for(i = 0; i < 0x20; i+=2) {
 339                 spin_lock_irqsave(&emu->emu_lock, flags);
 340                 value = inw(emu->port + i);
 341                 spin_unlock_irqrestore(&emu->emu_lock, flags);
 342                 snd_iprintf(buffer, "Register %02X: %04X\n", i, value);
 343         }
 344 }
 345
 346 static void snd_ca0106_proc_reg_read8(struct snd_info_entry *entry,
 347                                        struct snd_info_buffer *buffer)
 348 {
 349         struct snd_ca0106 *emu = entry->private_data;
 350         unsigned int value;
 351         unsigned long flags;
 352         int i;
 353         snd_iprintf(buffer, "Registers:\n\n");
 354         for(i = 0; i < 0x20; i+=1) {
 355                 spin_lock_irqsave(&emu->emu_lock, flags);
 356                 value = inb(emu->port + i);
 357                 spin_unlock_irqrestore(&emu->emu_lock, flags);
 358                 snd_iprintf(buffer, "Register %02X: %02X\n", i, value);
 359         }
 360 }
 361
 362 static void snd_ca0106_proc_reg_read1(struct snd_info_entry *entry,
 363                                        struct snd_info_buffer *buffer)
 364 {
 365         struct snd_ca0106 *emu = entry->private_data;
 366         unsigned long value;
 367         int i,j;
 368
 369         snd_iprintf(buffer, "Registers\n");
 370         for(i = 0; i < 0x40; i++) {
 371                 snd_iprintf(buffer, "%02X: ",i);
 372                 for (j = 0; j < 4; j++) {
 373                   value = snd_ca0106_ptr_read(emu, i, j);
 374                   snd_iprintf(buffer, "%08lX ", value);
 375                 }
 376                 snd_iprintf(buffer, "\n");
 377         }
 378 }
 379
 380 static void snd_ca0106_proc_reg_read2(struct snd_info_entry *entry,
 381                                        struct snd_info_buffer *buffer)
 382 {
 383         struct snd_ca0106 *emu = entry->private_data;
 384         unsigned long value;
 385         int i,j;
 386
 387         snd_iprintf(buffer, "Registers\n");
 388         for(i = 0x40; i < 0x80; i++) {
 389                 snd_iprintf(buffer, "%02X: ",i);
 390                 for (j = 0; j < 4; j++) {
 391                   value = snd_ca0106_ptr_read(emu, i, j);
 392                   snd_iprintf(buffer, "%08lX ", value);
 393                 }
 394                 snd_iprintf(buffer, "\n");
 395         }
 396 }
 397
 398 static void snd_ca0106_proc_reg_write(struct snd_info_entry *entry,
 399                                        struct snd_info_buffer *buffer)
 400 {
 401         struct snd_ca0106 *emu = entry->private_data;
 402         char line[64];
 403         unsigned int reg, channel_id , val;
 404         while (!snd_info_get_line(buffer, line, sizeof(line))) {
 405                 if (sscanf(line, "%x %x %x", &reg, &channel_id, &val) != 3)
 406                         continue;
 407                 if (reg < 0x80 && val <= 0xffffffff && channel_id <= 3)
 408                         snd_ca0106_ptr_write(emu, reg, channel_id, val);
 409         }
 410 }
 411
 412 static void snd_ca0106_proc_i2c_write(struct snd_info_entry *entry,
 413                                        struct snd_info_buffer *buffer)
 414 {
 415         struct snd_ca0106 *emu = entry->private_data;
 416         char line[64];
 417         unsigned int reg, val;
 418         while (!snd_info_get_line(buffer, line, sizeof(line))) {
 419                 if (sscanf(line, "%x %x", &reg, &val) != 2)
 420                         continue;
 421                 if ((reg <= 0x7f) || (val <= 0x1ff)) {
 422                         snd_ca0106_i2c_write(emu, reg, val);
 423                 }
 424         }
 425 }
 426
 427 int snd_ca0106_proc_init(struct snd_ca0106 *emu)
 428 {
 429         struct snd_info_entry *entry;
 430
 431         if(! snd_card_proc_new(emu->card, "iec958", &entry))
 432                 snd_info_set_text_ops(entry, emu, snd_ca0106_proc_iec958);
 433         if(! snd_card_proc_new(emu->card, "ca0106_reg32", &entry)) {
 434                 snd_info_set_text_ops(entry, emu, snd_ca0106_proc_reg_read32);
 435                 entry->c.text.write = snd_ca0106_proc_reg_write32;
 436                 entry->mode |= S_IWUSR;
 437         }
 438         if(! snd_card_proc_new(emu->card, "ca0106_reg16", &entry))
 439                 snd_info_set_text_ops(entry, emu, snd_ca0106_proc_reg_read16);
 440         if(! snd_card_proc_new(emu->card, "ca0106_reg8", &entry))
 441                 snd_info_set_text_ops(entry, emu, snd_ca0106_proc_reg_read8);
 442         if(! snd_card_proc_new(emu->card, "ca0106_regs1", &entry)) {
 443                 snd_info_set_text_ops(entry, emu, snd_ca0106_proc_reg_read1);
 444                 entry->c.text.write = snd_ca0106_proc_reg_write;
 445                 entry->mode |= S_IWUSR;
 446         }
 447         if(! snd_card_proc_new(emu->card, "ca0106_i2c", &entry)) {
 448                 entry->c.text.write = snd_ca0106_proc_i2c_write;
 449                 entry->private_data = emu;
 450                 entry->mode |= S_IWUSR;
 451         }
 452         if(! snd_card_proc_new(emu->card, "ca0106_regs2", &entry))
 453                 snd_info_set_text_ops(entry, emu, snd_ca0106_proc_reg_read2);
 454         return 0;
 455 }
 456
 457 #endif /* CONFIG_PROC_FS */