linux/sound/pci/ca0106/ca0106_proc.c
<<
>>
Prefs
   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 initally 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/slab.h>
  67#include <linux/moduleparam.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#include <asm/io.h>
  75
  76#include "ca0106.h"
  77
  78
  79#ifdef CONFIG_PROC_FS
  80
  81struct snd_ca0106_category_str {
  82        int val;
  83        const char *name;
  84};
  85
  86static struct snd_ca0106_category_str snd_ca0106_con_category[] = {
  87        { IEC958_AES1_CON_DAT, "DAT" },
  88        { IEC958_AES1_CON_VCR, "VCR" },
  89        { IEC958_AES1_CON_MICROPHONE, "microphone" },
  90        { IEC958_AES1_CON_SYNTHESIZER, "synthesizer" },
  91        { IEC958_AES1_CON_RATE_CONVERTER, "rate converter" },
  92        { IEC958_AES1_CON_MIXER, "mixer" },
  93        { IEC958_AES1_CON_SAMPLER, "sampler" },
  94        { IEC958_AES1_CON_PCM_CODER, "PCM coder" },
  95        { IEC958_AES1_CON_IEC908_CD, "CD" },
  96        { IEC958_AES1_CON_NON_IEC908_CD, "non-IEC908 CD" },
  97        { IEC958_AES1_CON_GENERAL, "general" },
  98};
  99
 100
 101static void snd_ca0106_proc_dump_iec958( struct snd_info_buffer *buffer, u32 value)
 102{
 103        int i;
 104        u32 status[4];
 105        status[0] = value & 0xff;
 106        status[1] = (value >> 8) & 0xff;
 107        status[2] = (value >> 16)  & 0xff;
 108        status[3] = (value >> 24)  & 0xff;
 109        
 110        if (! (status[0] & IEC958_AES0_PROFESSIONAL)) {
 111                /* consumer */
 112                snd_iprintf(buffer, "Mode: consumer\n");
 113                snd_iprintf(buffer, "Data: ");
 114                if (!(status[0] & IEC958_AES0_NONAUDIO)) {
 115                        snd_iprintf(buffer, "audio\n");
 116                } else {
 117                        snd_iprintf(buffer, "non-audio\n");
 118                }
 119                snd_iprintf(buffer, "Rate: ");
 120                switch (status[3] & IEC958_AES3_CON_FS) {
 121                case IEC958_AES3_CON_FS_44100:
 122                        snd_iprintf(buffer, "44100 Hz\n");
 123                        break;
 124                case IEC958_AES3_CON_FS_48000:
 125                        snd_iprintf(buffer, "48000 Hz\n");
 126                        break;
 127                case IEC958_AES3_CON_FS_32000:
 128                        snd_iprintf(buffer, "32000 Hz\n");
 129                        break;
 130                default:
 131                        snd_iprintf(buffer, "unknown\n");
 132                        break;
 133                }
 134                snd_iprintf(buffer, "Copyright: ");
 135                if (status[0] & IEC958_AES0_CON_NOT_COPYRIGHT) {
 136                        snd_iprintf(buffer, "permitted\n");
 137                } else {
 138                        snd_iprintf(buffer, "protected\n");
 139                }
 140                snd_iprintf(buffer, "Emphasis: ");
 141                if ((status[0] & IEC958_AES0_CON_EMPHASIS) != IEC958_AES0_CON_EMPHASIS_5015) {
 142                        snd_iprintf(buffer, "none\n");
 143                } else {
 144                        snd_iprintf(buffer, "50/15us\n");
 145                }
 146                snd_iprintf(buffer, "Category: ");
 147                for (i = 0; i < ARRAY_SIZE(snd_ca0106_con_category); i++) {
 148                        if ((status[1] & IEC958_AES1_CON_CATEGORY) == snd_ca0106_con_category[i].val) {
 149                                snd_iprintf(buffer, "%s\n", snd_ca0106_con_category[i].name);
 150                                break;
 151                        }
 152                }
 153                if (i >= ARRAY_SIZE(snd_ca0106_con_category)) {
 154                        snd_iprintf(buffer, "unknown 0x%x\n", status[1] & IEC958_AES1_CON_CATEGORY);
 155                }
 156                snd_iprintf(buffer, "Original: ");
 157                if (status[1] & IEC958_AES1_CON_ORIGINAL) {
 158                        snd_iprintf(buffer, "original\n");
 159                } else {
 160                        snd_iprintf(buffer, "1st generation\n");
 161                }
 162                snd_iprintf(buffer, "Clock: ");
 163                switch (status[3] & IEC958_AES3_CON_CLOCK) {
 164                case IEC958_AES3_CON_CLOCK_1000PPM:
 165                        snd_iprintf(buffer, "1000 ppm\n");
 166                        break;
 167                case IEC958_AES3_CON_CLOCK_50PPM:
 168                        snd_iprintf(buffer, "50 ppm\n");
 169                        break;
 170                case IEC958_AES3_CON_CLOCK_VARIABLE:
 171                        snd_iprintf(buffer, "variable pitch\n");
 172                        break;
 173                default:
 174                        snd_iprintf(buffer, "unknown\n");
 175                        break;
 176                }
 177        } else {
 178                snd_iprintf(buffer, "Mode: professional\n");
 179                snd_iprintf(buffer, "Data: ");
 180                if (!(status[0] & IEC958_AES0_NONAUDIO)) {
 181                        snd_iprintf(buffer, "audio\n");
 182                } else {
 183                        snd_iprintf(buffer, "non-audio\n");
 184                }
 185                snd_iprintf(buffer, "Rate: ");
 186                switch (status[0] & IEC958_AES0_PRO_FS) {
 187                case IEC958_AES0_PRO_FS_44100:
 188                        snd_iprintf(buffer, "44100 Hz\n");
 189                        break;
 190                case IEC958_AES0_PRO_FS_48000:
 191                        snd_iprintf(buffer, "48000 Hz\n");
 192                        break;
 193                case IEC958_AES0_PRO_FS_32000:
 194                        snd_iprintf(buffer, "32000 Hz\n");
 195                        break;
 196                default:
 197                        snd_iprintf(buffer, "unknown\n");
 198                        break;
 199                }
 200                snd_iprintf(buffer, "Rate Locked: ");
 201                if (status[0] & IEC958_AES0_PRO_FREQ_UNLOCKED)
 202                        snd_iprintf(buffer, "no\n");
 203                else
 204                        snd_iprintf(buffer, "yes\n");
 205                snd_iprintf(buffer, "Emphasis: ");
 206                switch (status[0] & IEC958_AES0_PRO_EMPHASIS) {
 207                case IEC958_AES0_PRO_EMPHASIS_CCITT:
 208                        snd_iprintf(buffer, "CCITT J.17\n");
 209                        break;
 210                case IEC958_AES0_PRO_EMPHASIS_NONE:
 211                        snd_iprintf(buffer, "none\n");
 212                        break;
 213                case IEC958_AES0_PRO_EMPHASIS_5015:
 214                        snd_iprintf(buffer, "50/15us\n");
 215                        break;
 216                case IEC958_AES0_PRO_EMPHASIS_NOTID:
 217                default:
 218                        snd_iprintf(buffer, "unknown\n");
 219                        break;
 220                }
 221                snd_iprintf(buffer, "Stereophonic: ");
 222                if ((status[1] & IEC958_AES1_PRO_MODE) == IEC958_AES1_PRO_MODE_STEREOPHONIC) {
 223                        snd_iprintf(buffer, "stereo\n");
 224                } else {
 225                        snd_iprintf(buffer, "not indicated\n");
 226                }
 227                snd_iprintf(buffer, "Userbits: ");
 228                switch (status[1] & IEC958_AES1_PRO_USERBITS) {
 229                case IEC958_AES1_PRO_USERBITS_192:
 230                        snd_iprintf(buffer, "192bit\n");
 231                        break;
 232                case IEC958_AES1_PRO_USERBITS_UDEF:
 233                        snd_iprintf(buffer, "user-defined\n");
 234                        break;
 235                default:
 236                        snd_iprintf(buffer, "unkown\n");
 237                        break;
 238                }
 239                snd_iprintf(buffer, "Sample Bits: ");
 240                switch (status[2] & IEC958_AES2_PRO_SBITS) {
 241                case IEC958_AES2_PRO_SBITS_20:
 242                        snd_iprintf(buffer, "20 bit\n");
 243                        break;
 244                case IEC958_AES2_PRO_SBITS_24:
 245                        snd_iprintf(buffer, "24 bit\n");
 246                        break;
 247                case IEC958_AES2_PRO_SBITS_UDEF:
 248                        snd_iprintf(buffer, "user defined\n");
 249                        break;
 250                default:
 251                        snd_iprintf(buffer, "unknown\n");
 252                        break;
 253                }
 254                snd_iprintf(buffer, "Word Length: ");
 255                switch (status[2] & IEC958_AES2_PRO_WORDLEN) {
 256                case IEC958_AES2_PRO_WORDLEN_22_18:
 257                        snd_iprintf(buffer, "22 bit or 18 bit\n");
 258                        break;
 259                case IEC958_AES2_PRO_WORDLEN_23_19:
 260                        snd_iprintf(buffer, "23 bit or 19 bit\n");
 261                        break;
 262                case IEC958_AES2_PRO_WORDLEN_24_20:
 263                        snd_iprintf(buffer, "24 bit or 20 bit\n");
 264                        break;
 265                case IEC958_AES2_PRO_WORDLEN_20_16:
 266                        snd_iprintf(buffer, "20 bit or 16 bit\n");
 267                        break;
 268                default:
 269                        snd_iprintf(buffer, "unknown\n");
 270                        break;
 271                }
 272        }
 273}
 274
 275static void snd_ca0106_proc_iec958(struct snd_info_entry *entry, 
 276                                       struct snd_info_buffer *buffer)
 277{
 278        struct snd_ca0106 *emu = entry->private_data;
 279        u32 value;
 280
 281        value = snd_ca0106_ptr_read(emu, SAMPLE_RATE_TRACKER_STATUS, 0);
 282        snd_iprintf(buffer, "Status: %s, %s, %s\n",
 283                  (value & 0x100000) ? "Rate Locked" : "Not Rate Locked",
 284                  (value & 0x200000) ? "SPDIF Locked" : "No SPDIF Lock",
 285                  (value & 0x400000) ? "Audio Valid" : "No valid audio" );
 286        snd_iprintf(buffer, "Estimated sample rate: %u\n", 
 287                  ((value & 0xfffff) * 48000) / 0x8000 );
 288        if (value & 0x200000) {
 289                snd_iprintf(buffer, "IEC958/SPDIF input status:\n");
 290                value = snd_ca0106_ptr_read(emu, SPDIF_INPUT_STATUS, 0);
 291                snd_ca0106_proc_dump_iec958(buffer, value);
 292        }
 293
 294        snd_iprintf(buffer, "\n");
 295}
 296
 297static void snd_ca0106_proc_reg_write32(struct snd_info_entry *entry, 
 298                                       struct snd_info_buffer *buffer)
 299{
 300        struct snd_ca0106 *emu = entry->private_data;
 301        unsigned long flags;
 302        char line[64];
 303        u32 reg, val;
 304        while (!snd_info_get_line(buffer, line, sizeof(line))) {
 305                if (sscanf(line, "%x %x", &reg, &val) != 2)
 306                        continue;
 307                if ((reg < 0x40) && (reg >=0) && (val <= 0xffffffff) ) {
 308                        spin_lock_irqsave(&emu->emu_lock, flags);
 309                        outl(val, emu->port + (reg & 0xfffffffc));
 310                        spin_unlock_irqrestore(&emu->emu_lock, flags);
 311                }
 312        }
 313}
 314
 315static void snd_ca0106_proc_reg_read32(struct snd_info_entry *entry, 
 316                                       struct snd_info_buffer *buffer)
 317{
 318        struct snd_ca0106 *emu = entry->private_data;
 319        unsigned long value;
 320        unsigned long flags;
 321        int i;
 322        snd_iprintf(buffer, "Registers:\n\n");
 323        for(i = 0; i < 0x20; i+=4) {
 324                spin_lock_irqsave(&emu->emu_lock, flags);
 325                value = inl(emu->port + i);
 326                spin_unlock_irqrestore(&emu->emu_lock, flags);
 327                snd_iprintf(buffer, "Register %02X: %08lX\n", i, value);
 328        }
 329}
 330
 331static void snd_ca0106_proc_reg_read16(struct snd_info_entry *entry, 
 332                                       struct snd_info_buffer *buffer)
 333{
 334        struct snd_ca0106 *emu = entry->private_data;
 335        unsigned int value;
 336        unsigned long flags;
 337        int i;
 338        snd_iprintf(buffer, "Registers:\n\n");
 339        for(i = 0; i < 0x20; i+=2) {
 340                spin_lock_irqsave(&emu->emu_lock, flags);
 341                value = inw(emu->port + i);
 342                spin_unlock_irqrestore(&emu->emu_lock, flags);
 343                snd_iprintf(buffer, "Register %02X: %04X\n", i, value);
 344        }
 345}
 346
 347static void snd_ca0106_proc_reg_read8(struct snd_info_entry *entry, 
 348                                       struct snd_info_buffer *buffer)
 349{
 350        struct snd_ca0106 *emu = entry->private_data;
 351        unsigned int value;
 352        unsigned long flags;
 353        int i;
 354        snd_iprintf(buffer, "Registers:\n\n");
 355        for(i = 0; i < 0x20; i+=1) {
 356                spin_lock_irqsave(&emu->emu_lock, flags);
 357                value = inb(emu->port + i);
 358                spin_unlock_irqrestore(&emu->emu_lock, flags);
 359                snd_iprintf(buffer, "Register %02X: %02X\n", i, value);
 360        }
 361}
 362
 363static void snd_ca0106_proc_reg_read1(struct snd_info_entry *entry, 
 364                                       struct snd_info_buffer *buffer)
 365{
 366        struct snd_ca0106 *emu = entry->private_data;
 367        unsigned long value;
 368        int i,j;
 369
 370        snd_iprintf(buffer, "Registers\n");
 371        for(i = 0; i < 0x40; i++) {
 372                snd_iprintf(buffer, "%02X: ",i);
 373                for (j = 0; j < 4; j++) {
 374                  value = snd_ca0106_ptr_read(emu, i, j);
 375                  snd_iprintf(buffer, "%08lX ", value);
 376                }
 377                snd_iprintf(buffer, "\n");
 378        }
 379}
 380
 381static void snd_ca0106_proc_reg_read2(struct snd_info_entry *entry, 
 382                                       struct snd_info_buffer *buffer)
 383{
 384        struct snd_ca0106 *emu = entry->private_data;
 385        unsigned long value;
 386        int i,j;
 387
 388        snd_iprintf(buffer, "Registers\n");
 389        for(i = 0x40; i < 0x80; i++) {
 390                snd_iprintf(buffer, "%02X: ",i);
 391                for (j = 0; j < 4; j++) {
 392                  value = snd_ca0106_ptr_read(emu, i, j);
 393                  snd_iprintf(buffer, "%08lX ", value);
 394                }
 395                snd_iprintf(buffer, "\n");
 396        }
 397}
 398
 399static void snd_ca0106_proc_reg_write(struct snd_info_entry *entry, 
 400                                       struct snd_info_buffer *buffer)
 401{
 402        struct snd_ca0106 *emu = entry->private_data;
 403        char line[64];
 404        unsigned int reg, channel_id , val;
 405        while (!snd_info_get_line(buffer, line, sizeof(line))) {
 406                if (sscanf(line, "%x %x %x", &reg, &channel_id, &val) != 3)
 407                        continue;
 408                if ((reg < 0x80) && (reg >=0) && (val <= 0xffffffff) && (channel_id >=0) && (channel_id <= 3) )
 409                        snd_ca0106_ptr_write(emu, reg, channel_id, val);
 410        }
 411}
 412
 413static void snd_ca0106_proc_i2c_write(struct snd_info_entry *entry, 
 414                                       struct snd_info_buffer *buffer)
 415{
 416        struct snd_ca0106 *emu = entry->private_data;
 417        char line[64];
 418        unsigned int reg, val;
 419        while (!snd_info_get_line(buffer, line, sizeof(line))) {
 420                if (sscanf(line, "%x %x", &reg, &val) != 2)
 421                        continue;
 422                if ((reg <= 0x7f) || (val <= 0x1ff)) {
 423                        snd_ca0106_i2c_write(emu, reg, val);
 424                }
 425        }
 426}
 427
 428int __devinit snd_ca0106_proc_init(struct snd_ca0106 * emu)
 429{
 430        struct snd_info_entry *entry;
 431        
 432        if(! snd_card_proc_new(emu->card, "iec958", &entry))
 433                snd_info_set_text_ops(entry, emu, snd_ca0106_proc_iec958);
 434        if(! snd_card_proc_new(emu->card, "ca0106_reg32", &entry)) {
 435                snd_info_set_text_ops(entry, emu, snd_ca0106_proc_reg_read32);
 436                entry->c.text.write = snd_ca0106_proc_reg_write32;
 437                entry->mode |= S_IWUSR;
 438        }
 439        if(! snd_card_proc_new(emu->card, "ca0106_reg16", &entry))
 440                snd_info_set_text_ops(entry, emu, snd_ca0106_proc_reg_read16);
 441        if(! snd_card_proc_new(emu->card, "ca0106_reg8", &entry))
 442                snd_info_set_text_ops(entry, emu, snd_ca0106_proc_reg_read8);
 443        if(! snd_card_proc_new(emu->card, "ca0106_regs1", &entry)) {
 444                snd_info_set_text_ops(entry, emu, snd_ca0106_proc_reg_read1);
 445                entry->c.text.write = snd_ca0106_proc_reg_write;
 446                entry->mode |= S_IWUSR;
 447        }
 448        if(! snd_card_proc_new(emu->card, "ca0106_i2c", &entry)) {
 449                entry->c.text.write = snd_ca0106_proc_i2c_write;
 450                entry->private_data = emu;
 451                entry->mode |= S_IWUSR;
 452        }
 453        if(! snd_card_proc_new(emu->card, "ca0106_regs2", &entry)) 
 454                snd_info_set_text_ops(entry, emu, snd_ca0106_proc_reg_read2);
 455        return 0;
 456}
 457
 458#endif /* CONFIG_PROC_FS */
 459