linux/sound/pci/ca0106/ca0106_proc.c
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   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
  64struct snd_ca0106_category_str {
  65        int val;
  66        const char *name;
  67};
  68
  69static 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
  84static 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
 258static 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
 280static 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
 298static 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
 314static 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
 330static 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
 346static 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
 364static 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
 382static 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
 396static 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
 411int 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}
 430