sound/pci/ca0106/ca0106_proc.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  *  Copyright (c) 2004 James Courtier-Dutton <James@superbug.demon.co.uk>
   4  *  Driver CA0106 chips. e.g. Sound Blaster Audigy LS and Live 24bit
   5  *  Version: 0.0.18
   6  *
   7  *  FEATURES currently supported:
   8  *    See ca0106_main.c for features.
   9  *
  10  *  Changelog:
  11  *    Support interrupts per period.
  12  *    Removed noise from Center/LFE channel when in Analog mode.
  13  *    Rename and remove mixer controls.
  14  *  0.0.6
  15  *    Use separate card based DMA buffer for periods table list.
  16  *  0.0.7
  17  *    Change remove and rename ctrls into lists.
  18  *  0.0.8
  19  *    Try to fix capture sources.
  20  *  0.0.9
  21  *    Fix AC3 output.
  22  *    Enable S32_LE format support.
  23  *  0.0.10
  24  *    Enable playback 48000 and 96000 rates. (Rates other that these do not work, even with "plug:front".)
  25  *  0.0.11
  26  *    Add Model name recognition.
  27  *  0.0.12
  28  *    Correct interrupt timing. interrupt at end of period, instead of in the middle of a playback period.
  29  *    Remove redundent "voice" handling.
  30  *  0.0.13
  31  *    Single trigger call for multi channels.
  32  *  0.0.14
  33  *    Set limits based on what the sound card hardware can do.
  34  *    playback periods_min=2, periods_max=8
  35  *    capture hw constraints require period_size = n * 64 bytes.
  36  *    playback hw constraints require period_size = n * 64 bytes.
  37  *  0.0.15
  38  *    Separate ca0106.c into separate functional .c files.
  39  *  0.0.16
  40  *    Modified Copyright message.
  41  *  0.0.17
  42  *    Add iec958 file in proc file system to show status of SPDIF in.
  43  *  0.0.18
  44  *    Implement support for Line-in capture on SB Live 24bit.
  45  *
  46  *  This code was initially based on code from ALSA's emu10k1x.c which is:
  47  *  Copyright (c) by Francisco Moraes <fmoraes@nc.rr.com>
  48  */
  49 #include <linux/delay.h>
  50 #include <linux/init.h>
  51 #include <linux/interrupt.h>
  52 #include <linux/moduleparam.h>
  53 #include <linux/io.h>
  54 #include <sound/core.h>
  55 #include <sound/initval.h>
  56 #include <sound/pcm.h>
  57 #include <sound/ac97_codec.h>
  58 #include <sound/info.h>
  59 #include <sound/asoundef.h>
  60
  61 #include "ca0106.h"
  62
  63
  64 struct snd_ca0106_category_str {
  65         int val;
  66         const char *name;
  67 };
  68
  69 static const struct snd_ca0106_category_str snd_ca0106_con_category[] = {
  70         { IEC958_AES1_CON_DAT, "DAT" },
  71         { IEC958_AES1_CON_VCR, "VCR" },
  72         { IEC958_AES1_CON_MICROPHONE, "microphone" },
  73         { IEC958_AES1_CON_SYNTHESIZER, "synthesizer" },
  74         { IEC958_AES1_CON_RATE_CONVERTER, "rate converter" },
  75         { IEC958_AES1_CON_MIXER, "mixer" },
  76         { IEC958_AES1_CON_SAMPLER, "sampler" },
  77         { IEC958_AES1_CON_PCM_CODER, "PCM coder" },
  78         { IEC958_AES1_CON_IEC908_CD, "CD" },
  79         { IEC958_AES1_CON_NON_IEC908_CD, "non-IEC908 CD" },
  80         { IEC958_AES1_CON_GENERAL, "general" },
  81 };
  82
  83
  84 static void snd_ca0106_proc_dump_iec958( struct snd_info_buffer *buffer, u32 value)
  85 {
  86         int i;
  87         u32 status[4];
  88         status[0] = value & 0xff;
  89         status[1] = (value >> 8) & 0xff;
  90         status[2] = (value >> 16)  & 0xff;
  91         status[3] = (value >> 24)  & 0xff;
  92
  93         if (! (status[0] & IEC958_AES0_PROFESSIONAL)) {
  94                 /* consumer */
  95                 snd_iprintf(buffer, "Mode: consumer\n");
  96                 snd_iprintf(buffer, "Data: ");
  97                 if (!(status[0] & IEC958_AES0_NONAUDIO)) {
  98                         snd_iprintf(buffer, "audio\n");
  99                 } else {
 100                         snd_iprintf(buffer, "non-audio\n");
 101                 }
 102                 snd_iprintf(buffer, "Rate: ");
 103                 switch (status[3] & IEC958_AES3_CON_FS) {
 104                 case IEC958_AES3_CON_FS_44100:
 105                         snd_iprintf(buffer, "44100 Hz\n");
 106                         break;
 107                 case IEC958_AES3_CON_FS_48000:
 108                         snd_iprintf(buffer, "48000 Hz\n");
 109                         break;
 110                 case IEC958_AES3_CON_FS_32000:
 111                         snd_iprintf(buffer, "32000 Hz\n");
 112                         break;
 113                 default:
 114                         snd_iprintf(buffer, "unknown\n");
 115                         break;
 116                 }
 117                 snd_iprintf(buffer, "Copyright: ");
 118                 if (status[0] & IEC958_AES0_CON_NOT_COPYRIGHT) {
 119                         snd_iprintf(buffer, "permitted\n");
 120                 } else {
 121                         snd_iprintf(buffer, "protected\n");
 122                 }
 123                 snd_iprintf(buffer, "Emphasis: ");
 124                 if ((status[0] & IEC958_AES0_CON_EMPHASIS) != IEC958_AES0_CON_EMPHASIS_5015) {
 125                         snd_iprintf(buffer, "none\n");
 126                 } else {
 127                         snd_iprintf(buffer, "50/15us\n");
 128                 }
 129                 snd_iprintf(buffer, "Category: ");
 130                 for (i = 0; i < ARRAY_SIZE(snd_ca0106_con_category); i++) {
 131                         if ((status[1] & IEC958_AES1_CON_CATEGORY) == snd_ca0106_con_category[i].val) {
 132                                 snd_iprintf(buffer, "%s\n", snd_ca0106_con_category[i].name);
 133                                 break;
 134                         }
 135                 }
 136                 if (i >= ARRAY_SIZE(snd_ca0106_con_category)) {
 137                         snd_iprintf(buffer, "unknown 0x%x\n", status[1] & IEC958_AES1_CON_CATEGORY);
 138                 }
 139                 snd_iprintf(buffer, "Original: ");
 140                 if (status[1] & IEC958_AES1_CON_ORIGINAL) {
 141                         snd_iprintf(buffer, "original\n");
 142                 } else {
 143                         snd_iprintf(buffer, "1st generation\n");
 144                 }
 145                 snd_iprintf(buffer, "Clock: ");
 146                 switch (status[3] & IEC958_AES3_CON_CLOCK) {
 147                 case IEC958_AES3_CON_CLOCK_1000PPM:
 148                         snd_iprintf(buffer, "1000 ppm\n");
 149                         break;
 150                 case IEC958_AES3_CON_CLOCK_50PPM:
 151                         snd_iprintf(buffer, "50 ppm\n");
 152                         break;
 153                 case IEC958_AES3_CON_CLOCK_VARIABLE:
 154                         snd_iprintf(buffer, "variable pitch\n");
 155                         break;
 156                 default:
 157                         snd_iprintf(buffer, "unknown\n");
 158                         break;
 159                 }
 160         } else {
 161                 snd_iprintf(buffer, "Mode: professional\n");
 162                 snd_iprintf(buffer, "Data: ");
 163                 if (!(status[0] & IEC958_AES0_NONAUDIO)) {
 164                         snd_iprintf(buffer, "audio\n");
 165                 } else {
 166                         snd_iprintf(buffer, "non-audio\n");
 167                 }
 168                 snd_iprintf(buffer, "Rate: ");
 169                 switch (status[0] & IEC958_AES0_PRO_FS) {
 170                 case IEC958_AES0_PRO_FS_44100:
 171                         snd_iprintf(buffer, "44100 Hz\n");
 172                         break;
 173                 case IEC958_AES0_PRO_FS_48000:
 174                         snd_iprintf(buffer, "48000 Hz\n");
 175                         break;
 176                 case IEC958_AES0_PRO_FS_32000:
 177                         snd_iprintf(buffer, "32000 Hz\n");
 178                         break;
 179                 default:
 180                         snd_iprintf(buffer, "unknown\n");
 181                         break;
 182                 }
 183                 snd_iprintf(buffer, "Rate Locked: ");
 184                 if (status[0] & IEC958_AES0_PRO_FREQ_UNLOCKED)
 185                         snd_iprintf(buffer, "no\n");
 186                 else
 187                         snd_iprintf(buffer, "yes\n");
 188                 snd_iprintf(buffer, "Emphasis: ");
 189                 switch (status[0] & IEC958_AES0_PRO_EMPHASIS) {
 190                 case IEC958_AES0_PRO_EMPHASIS_CCITT:
 191                         snd_iprintf(buffer, "CCITT J.17\n");
 192                         break;
 193                 case IEC958_AES0_PRO_EMPHASIS_NONE:
 194                         snd_iprintf(buffer, "none\n");
 195                         break;
 196                 case IEC958_AES0_PRO_EMPHASIS_5015:
 197                         snd_iprintf(buffer, "50/15us\n");
 198                         break;
 199                 case IEC958_AES0_PRO_EMPHASIS_NOTID:
 200                 default:
 201                         snd_iprintf(buffer, "unknown\n");
 202                         break;
 203                 }
 204                 snd_iprintf(buffer, "Stereophonic: ");
 205                 if ((status[1] & IEC958_AES1_PRO_MODE) == IEC958_AES1_PRO_MODE_STEREOPHONIC) {
 206                         snd_iprintf(buffer, "stereo\n");
 207                 } else {
 208                         snd_iprintf(buffer, "not indicated\n");
 209                 }
 210                 snd_iprintf(buffer, "Userbits: ");
 211                 switch (status[1] & IEC958_AES1_PRO_USERBITS) {
 212                 case IEC958_AES1_PRO_USERBITS_192:
 213                         snd_iprintf(buffer, "192bit\n");
 214                         break;
 215                 case IEC958_AES1_PRO_USERBITS_UDEF:
 216                         snd_iprintf(buffer, "user-defined\n");
 217                         break;
 218                 default:
 219                         snd_iprintf(buffer, "unknown\n");
 220                         break;
 221                 }
 222                 snd_iprintf(buffer, "Sample Bits: ");
 223                 switch (status[2] & IEC958_AES2_PRO_SBITS) {
 224                 case IEC958_AES2_PRO_SBITS_20:
 225                         snd_iprintf(buffer, "20 bit\n");
 226                         break;
 227                 case IEC958_AES2_PRO_SBITS_24:
 228                         snd_iprintf(buffer, "24 bit\n");
 229                         break;
 230                 case IEC958_AES2_PRO_SBITS_UDEF:
 231                         snd_iprintf(buffer, "user defined\n");
 232                         break;
 233                 default:
 234                         snd_iprintf(buffer, "unknown\n");
 235                         break;
 236                 }
 237                 snd_iprintf(buffer, "Word Length: ");
 238                 switch (status[2] & IEC958_AES2_PRO_WORDLEN) {
 239                 case IEC958_AES2_PRO_WORDLEN_22_18:
 240                         snd_iprintf(buffer, "22 bit or 18 bit\n");
 241                         break;
 242                 case IEC958_AES2_PRO_WORDLEN_23_19:
 243                         snd_iprintf(buffer, "23 bit or 19 bit\n");
 244                         break;
 245                 case IEC958_AES2_PRO_WORDLEN_24_20:
 246                         snd_iprintf(buffer, "24 bit or 20 bit\n");
 247                         break;
 248                 case IEC958_AES2_PRO_WORDLEN_20_16:
 249                         snd_iprintf(buffer, "20 bit or 16 bit\n");
 250                         break;
 251                 default:
 252                         snd_iprintf(buffer, "unknown\n");
 253                         break;
 254                 }
 255         }
 256 }
 257
 258 static void snd_ca0106_proc_iec958(struct snd_info_entry *entry,
 259                                        struct snd_info_buffer *buffer)
 260 {
 261         struct snd_ca0106 *emu = entry->private_data;
 262         u32 value;
 263
 264         value = snd_ca0106_ptr_read(emu, SAMPLE_RATE_TRACKER_STATUS, 0);
 265         snd_iprintf(buffer, "Status: %s, %s, %s\n",
 266                   (value & 0x100000) ? "Rate Locked" : "Not Rate Locked",
 267                   (value & 0x200000) ? "SPDIF Locked" : "No SPDIF Lock",
 268                   (value & 0x400000) ? "Audio Valid" : "No valid audio" );
 269         snd_iprintf(buffer, "Estimated sample rate: %u\n",
 270                   ((value & 0xfffff) * 48000) / 0x8000 );
 271         if (value & 0x200000) {
 272                 snd_iprintf(buffer, "IEC958/SPDIF input status:\n");
 273                 value = snd_ca0106_ptr_read(emu, SPDIF_INPUT_STATUS, 0);
 274                 snd_ca0106_proc_dump_iec958(buffer, value);
 275         }
 276
 277         snd_iprintf(buffer, "\n");
 278 }
 279
 280 static void snd_ca0106_proc_reg_write32(struct snd_info_entry *entry,
 281                                        struct snd_info_buffer *buffer)
 282 {
 283         struct snd_ca0106 *emu = entry->private_data;
 284         unsigned long flags;
 285         char line[64];
 286         u32 reg, val;
 287         while (!snd_info_get_line(buffer, line, sizeof(line))) {
 288                 if (sscanf(line, "%x %x", &reg, &val) != 2)
 289                         continue;
 290                 if (reg < 0x40 && val <= 0xffffffff) {
 291                         spin_lock_irqsave(&emu->emu_lock, flags);
 292                         outl(val, emu->port + (reg & 0xfffffffc));
 293                         spin_unlock_irqrestore(&emu->emu_lock, flags);
 294                 }
 295         }
 296 }
 297
 298 static void snd_ca0106_proc_reg_read32(struct snd_info_entry *entry,
 299                                        struct snd_info_buffer *buffer)
 300 {
 301         struct snd_ca0106 *emu = entry->private_data;
 302         unsigned long value;
 303         unsigned long flags;
 304         int i;
 305         snd_iprintf(buffer, "Registers:\n\n");
 306         for(i = 0; i < 0x20; i+=4) {
 307                 spin_lock_irqsave(&emu->emu_lock, flags);
 308                 value = inl(emu->port + i);
 309                 spin_unlock_irqrestore(&emu->emu_lock, flags);
 310                 snd_iprintf(buffer, "Register %02X: %08lX\n", i, value);
 311         }
 312 }
 313
 314 static void snd_ca0106_proc_reg_read16(struct snd_info_entry *entry,
 315                                        struct snd_info_buffer *buffer)
 316 {
 317         struct snd_ca0106 *emu = entry->private_data;
 318         unsigned int value;
 319         unsigned long flags;
 320         int i;
 321         snd_iprintf(buffer, "Registers:\n\n");
 322         for(i = 0; i < 0x20; i+=2) {
 323                 spin_lock_irqsave(&emu->emu_lock, flags);
 324                 value = inw(emu->port + i);
 325                 spin_unlock_irqrestore(&emu->emu_lock, flags);
 326                 snd_iprintf(buffer, "Register %02X: %04X\n", i, value);
 327         }
 328 }
 329
 330 static void snd_ca0106_proc_reg_read8(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+=1) {
 339                 spin_lock_irqsave(&emu->emu_lock, flags);
 340                 value = inb(emu->port + i);
 341                 spin_unlock_irqrestore(&emu->emu_lock, flags);
 342                 snd_iprintf(buffer, "Register %02X: %02X\n", i, value);
 343         }
 344 }
 345
 346 static void snd_ca0106_proc_reg_read1(struct snd_info_entry *entry,
 347                                        struct snd_info_buffer *buffer)
 348 {
 349         struct snd_ca0106 *emu = entry->private_data;
 350         unsigned long value;
 351         int i,j;
 352
 353         snd_iprintf(buffer, "Registers\n");
 354         for(i = 0; i < 0x40; i++) {
 355                 snd_iprintf(buffer, "%02X: ",i);
 356                 for (j = 0; j < 4; j++) {
 357                   value = snd_ca0106_ptr_read(emu, i, j);
 358                   snd_iprintf(buffer, "%08lX ", value);
 359                 }
 360                 snd_iprintf(buffer, "\n");
 361         }
 362 }
 363
 364 static void snd_ca0106_proc_reg_read2(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 = 0x40; i < 0x80; 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
 382 static void snd_ca0106_proc_reg_write(struct snd_info_entry *entry,
 383                                        struct snd_info_buffer *buffer)
 384 {
 385         struct snd_ca0106 *emu = entry->private_data;
 386         char line[64];
 387         unsigned int reg, channel_id , val;
 388         while (!snd_info_get_line(buffer, line, sizeof(line))) {
 389                 if (sscanf(line, "%x %x %x", &reg, &channel_id, &val) != 3)
 390                         continue;
 391                 if (reg < 0x80 && val <= 0xffffffff && channel_id <= 3)
 392                         snd_ca0106_ptr_write(emu, reg, channel_id, val);
 393         }
 394 }
 395
 396 static void snd_ca0106_proc_i2c_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, val;
 402         while (!snd_info_get_line(buffer, line, sizeof(line))) {
 403                 if (sscanf(line, "%x %x", &reg, &val) != 2)
 404                         continue;
 405                 if ((reg <= 0x7f) || (val <= 0x1ff)) {
 406                         snd_ca0106_i2c_write(emu, reg, val);
 407                 }
 408         }
 409 }
 410
 411 int snd_ca0106_proc_init(struct snd_ca0106 *emu)
 412 {
 413         snd_card_ro_proc_new(emu->card, "iec958", emu, snd_ca0106_proc_iec958);
 414         snd_card_rw_proc_new(emu->card, "ca0106_reg32", emu,
 415                              snd_ca0106_proc_reg_read32,
 416                              snd_ca0106_proc_reg_write32);
 417         snd_card_ro_proc_new(emu->card, "ca0106_reg16", emu,
 418                              snd_ca0106_proc_reg_read16);
 419         snd_card_ro_proc_new(emu->card, "ca0106_reg8", emu,
 420                              snd_ca0106_proc_reg_read8);
 421         snd_card_rw_proc_new(emu->card, "ca0106_regs1", emu,
 422                              snd_ca0106_proc_reg_read1,
 423                              snd_ca0106_proc_reg_write);
 424         snd_card_rw_proc_new(emu->card, "ca0106_i2c", emu, NULL,
 425                              snd_ca0106_proc_i2c_write);
 426         snd_card_ro_proc_new(emu->card, "ca0106_regs2", emu,
 427                              snd_ca0106_proc_reg_read2);
 428         return 0;
 429 }