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 <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
  80struct snd_ca0106_category_str {
  81        int val;
  82        const char *name;
  83};
  84
  85static 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
 100static 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
 274static 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
 296static 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
 314static 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
 330static 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
 346static 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
 362static 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
 380static 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
 398static 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
 412static 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
 427int __devinit 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 */
 458