linux/sound/pci/ca0106/ca0106_proc.c
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   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
  78struct snd_ca0106_category_str {
  79        int val;
  80        const char *name;
  81};
  82
  83static 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
  98static 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
 272static 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
 294static 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
 312static 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
 328static 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
 344static 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
 360static 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
 378static 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
 396static 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
 410static 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
 425int snd_ca0106_proc_init(struct snd_ca0106 *emu)
 426{
 427        snd_card_ro_proc_new(emu->card, "iec958", emu, snd_ca0106_proc_iec958);
 428        snd_card_rw_proc_new(emu->card, "ca0106_reg32", emu,
 429                             snd_ca0106_proc_reg_read32,
 430                             snd_ca0106_proc_reg_write32);
 431        snd_card_ro_proc_new(emu->card, "ca0106_reg16", emu,
 432                             snd_ca0106_proc_reg_read16);
 433        snd_card_ro_proc_new(emu->card, "ca0106_reg8", emu,
 434                             snd_ca0106_proc_reg_read8);
 435        snd_card_rw_proc_new(emu->card, "ca0106_regs1", emu,
 436                             snd_ca0106_proc_reg_read1,
 437                             snd_ca0106_proc_reg_write);
 438        snd_card_rw_proc_new(emu->card, "ca0106_i2c", emu, NULL,
 439                             snd_ca0106_proc_i2c_write);
 440        snd_card_ro_proc_new(emu->card, "ca0106_regs2", emu,
 441                             snd_ca0106_proc_reg_read2);
 442        return 0;
 443}
 444