sound/pci/ac97/ac97_proc.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
   4  *  Universal interface for Audio Codec '97
   5  *
   6  *  For more details look to AC '97 component specification revision 2.2
   7  *  by Intel Corporation (http://developer.intel.com).
   8  */
   9
  10 #include <linux/mutex.h>
  11
  12 #include <sound/core.h>
  13 #include <sound/ac97_codec.h>
  14 #include <sound/asoundef.h>
  15 #include "ac97_local.h"
  16 #include "ac97_id.h"
  17
  18 /*
  19  * proc interface
  20  */
  21
  22 static void snd_ac97_proc_read_functions(struct snd_ac97 *ac97, struct snd_info_buffer *buffer)
  23 {
  24         int header = 0, function;
  25         unsigned short info, sense_info;
  26         static const char *function_names[12] = {
  27                 "Master Out", "AUX Out", "Center/LFE Out", "SPDIF Out",
  28                 "Phone In", "Mic 1", "Mic 2", "Line In", "CD In", "Video In",
  29                 "Aux In", "Mono Out"
  30         };
  31         static const char *locations[8] = {
  32                 "Rear I/O Panel", "Front Panel", "Motherboard", "Dock/External",
  33                 "reserved", "reserved", "reserved", "NC/unused"
  34         };
  35
  36         for (function = 0; function < 12; ++function) {
  37                 snd_ac97_write(ac97, AC97_FUNC_SELECT, function << 1);
  38                 info = snd_ac97_read(ac97, AC97_FUNC_INFO);
  39                 if (!(info & 0x0001))
  40                         continue;
  41                 if (!header) {
  42                         snd_iprintf(buffer, "\n                    Gain     Inverted  Buffer delay  Location\n");
  43                         header = 1;
  44                 }
  45                 sense_info = snd_ac97_read(ac97, AC97_SENSE_INFO);
  46                 snd_iprintf(buffer, "%-17s: %3d.%d dBV    %c      %2d/fs         %s\n",
  47                             function_names[function],
  48                             (info & 0x8000 ? -1 : 1) * ((info & 0x7000) >> 12) * 3 / 2,
  49                             ((info & 0x0800) >> 11) * 5,
  50                             info & 0x0400 ? 'X' : '-',
  51                             (info & 0x03e0) >> 5,
  52                             locations[sense_info >> 13]);
  53         }
  54 }
  55
  56 static const char *snd_ac97_stereo_enhancements[] =
  57 {
  58   /*   0 */ "No 3D Stereo Enhancement",
  59   /*   1 */ "Analog Devices Phat Stereo",
  60   /*   2 */ "Creative Stereo Enhancement",
  61   /*   3 */ "National Semi 3D Stereo Enhancement",
  62   /*   4 */ "YAMAHA Ymersion",
  63   /*   5 */ "BBE 3D Stereo Enhancement",
  64   /*   6 */ "Crystal Semi 3D Stereo Enhancement",
  65   /*   7 */ "Qsound QXpander",
  66   /*   8 */ "Spatializer 3D Stereo Enhancement",
  67   /*   9 */ "SRS 3D Stereo Enhancement",
  68   /*  10 */ "Platform Tech 3D Stereo Enhancement",
  69   /*  11 */ "AKM 3D Audio",
  70   /*  12 */ "Aureal Stereo Enhancement",
  71   /*  13 */ "Aztech 3D Enhancement",
  72   /*  14 */ "Binaura 3D Audio Enhancement",
  73   /*  15 */ "ESS Technology Stereo Enhancement",
  74   /*  16 */ "Harman International VMAx",
  75   /*  17 */ "Nvidea/IC Ensemble/KS Waves 3D Stereo Enhancement",
  76   /*  18 */ "Philips Incredible Sound",
  77   /*  19 */ "Texas Instruments 3D Stereo Enhancement",
  78   /*  20 */ "VLSI Technology 3D Stereo Enhancement",
  79   /*  21 */ "TriTech 3D Stereo Enhancement",
  80   /*  22 */ "Realtek 3D Stereo Enhancement",
  81   /*  23 */ "Samsung 3D Stereo Enhancement",
  82   /*  24 */ "Wolfson Microelectronics 3D Enhancement",
  83   /*  25 */ "Delta Integration 3D Enhancement",
  84   /*  26 */ "SigmaTel 3D Enhancement",
  85   /*  27 */ "IC Ensemble/KS Waves",
  86   /*  28 */ "Rockwell 3D Stereo Enhancement",
  87   /*  29 */ "Reserved 29",
  88   /*  30 */ "Reserved 30",
  89   /*  31 */ "Reserved 31"
  90 };
  91
  92 static void snd_ac97_proc_read_main(struct snd_ac97 *ac97, struct snd_info_buffer *buffer, int subidx)
  93 {
  94         char name[64];
  95         unsigned short val, tmp, ext, mext;
  96         static const char *spdif_slots[4] = { " SPDIF=3/4", " SPDIF=7/8", " SPDIF=6/9", " SPDIF=10/11" };
  97         static const char *spdif_rates[4] = { " Rate=44.1kHz", " Rate=res", " Rate=48kHz", " Rate=32kHz" };
  98         static const char *spdif_rates_cs4205[4] = { " Rate=48kHz", " Rate=44.1kHz", " Rate=res", " Rate=res" };
  99         static const char *double_rate_slots[4] = { "10/11", "7/8", "reserved", "reserved" };
 100
 101         snd_ac97_get_name(NULL, ac97->id, name, 0);
 102         snd_iprintf(buffer, "%d-%d/%d: %s\n\n", ac97->addr, ac97->num, subidx, name);
 103
 104         if ((ac97->scaps & AC97_SCAP_AUDIO) == 0)
 105                 goto __modem;
 106
 107         snd_iprintf(buffer, "PCI Subsys Vendor: 0x%04x\n",
 108                     ac97->subsystem_vendor);
 109         snd_iprintf(buffer, "PCI Subsys Device: 0x%04x\n\n",
 110                     ac97->subsystem_device);
 111
 112         snd_iprintf(buffer, "Flags: %x\n", ac97->flags);
 113
 114         if ((ac97->ext_id & AC97_EI_REV_MASK) >= AC97_EI_REV_23) {
 115                 val = snd_ac97_read(ac97, AC97_INT_PAGING);
 116                 snd_ac97_update_bits(ac97, AC97_INT_PAGING,
 117                                      AC97_PAGE_MASK, AC97_PAGE_1);
 118                 tmp = snd_ac97_read(ac97, AC97_CODEC_CLASS_REV);
 119                 snd_iprintf(buffer, "Revision         : 0x%02x\n", tmp & 0xff);
 120                 snd_iprintf(buffer, "Compat. Class    : 0x%02x\n", (tmp >> 8) & 0x1f);
 121                 snd_iprintf(buffer, "Subsys. Vendor ID: 0x%04x\n",
 122                             snd_ac97_read(ac97, AC97_PCI_SVID));
 123                 snd_iprintf(buffer, "Subsys. ID       : 0x%04x\n\n",
 124                             snd_ac97_read(ac97, AC97_PCI_SID));
 125                 snd_ac97_update_bits(ac97, AC97_INT_PAGING,
 126                                      AC97_PAGE_MASK, val & AC97_PAGE_MASK);
 127         }
 128
 129         // val = snd_ac97_read(ac97, AC97_RESET);
 130         val = ac97->caps;
 131         snd_iprintf(buffer, "Capabilities     :%s%s%s%s%s%s\n",
 132                     val & AC97_BC_DEDICATED_MIC ? " -dedicated MIC PCM IN channel-" : "",
 133                     val & AC97_BC_RESERVED1 ? " -reserved1-" : "",
 134                     val & AC97_BC_BASS_TREBLE ? " -bass & treble-" : "",
 135                     val & AC97_BC_SIM_STEREO ? " -simulated stereo-" : "",
 136                     val & AC97_BC_HEADPHONE ? " -headphone out-" : "",
 137                     val & AC97_BC_LOUDNESS ? " -loudness-" : "");
 138         tmp = ac97->caps & AC97_BC_DAC_MASK;
 139         snd_iprintf(buffer, "DAC resolution   : %s%s%s%s\n",
 140                     tmp == AC97_BC_16BIT_DAC ? "16-bit" : "",
 141                     tmp == AC97_BC_18BIT_DAC ? "18-bit" : "",
 142                     tmp == AC97_BC_20BIT_DAC ? "20-bit" : "",
 143                     tmp == AC97_BC_DAC_MASK ? "???" : "");
 144         tmp = ac97->caps & AC97_BC_ADC_MASK;
 145         snd_iprintf(buffer, "ADC resolution   : %s%s%s%s\n",
 146                     tmp == AC97_BC_16BIT_ADC ? "16-bit" : "",
 147                     tmp == AC97_BC_18BIT_ADC ? "18-bit" : "",
 148                     tmp == AC97_BC_20BIT_ADC ? "20-bit" : "",
 149                     tmp == AC97_BC_ADC_MASK ? "???" : "");
 150         snd_iprintf(buffer, "3D enhancement   : %s\n",
 151                 snd_ac97_stereo_enhancements[(val >> 10) & 0x1f]);
 152         snd_iprintf(buffer, "\nCurrent setup\n");
 153         val = snd_ac97_read(ac97, AC97_MIC);
 154         snd_iprintf(buffer, "Mic gain         : %s [%s]\n", val & 0x0040 ? "+20dB" : "+0dB", ac97->regs[AC97_MIC] & 0x0040 ? "+20dB" : "+0dB");
 155         val = snd_ac97_read(ac97, AC97_GENERAL_PURPOSE);
 156         snd_iprintf(buffer, "POP path         : %s 3D\n"
 157                     "Sim. stereo      : %s\n"
 158                     "3D enhancement   : %s\n"
 159                     "Loudness         : %s\n"
 160                     "Mono output      : %s\n"
 161                     "Mic select       : %s\n"
 162                     "ADC/DAC loopback : %s\n",
 163                     val & 0x8000 ? "post" : "pre",
 164                     val & 0x4000 ? "on" : "off",
 165                     val & 0x2000 ? "on" : "off",
 166                     val & 0x1000 ? "on" : "off",
 167                     val & 0x0200 ? "Mic" : "MIX",
 168                     val & 0x0100 ? "Mic2" : "Mic1",
 169                     val & 0x0080 ? "on" : "off");
 170         if (ac97->ext_id & AC97_EI_DRA)
 171                 snd_iprintf(buffer, "Double rate slots: %s\n",
 172                             double_rate_slots[(val >> 10) & 3]);
 173
 174         ext = snd_ac97_read(ac97, AC97_EXTENDED_ID);
 175         if (ext == 0)
 176                 goto __modem;
 177
 178         snd_iprintf(buffer, "Extended ID      : codec=%i rev=%i%s%s%s%s DSA=%i%s%s%s%s\n",
 179                         (ext & AC97_EI_ADDR_MASK) >> AC97_EI_ADDR_SHIFT,
 180                         (ext & AC97_EI_REV_MASK) >> AC97_EI_REV_SHIFT,
 181                         ext & AC97_EI_AMAP ? " AMAP" : "",
 182                         ext & AC97_EI_LDAC ? " LDAC" : "",
 183                         ext & AC97_EI_SDAC ? " SDAC" : "",
 184                         ext & AC97_EI_CDAC ? " CDAC" : "",
 185                         (ext & AC97_EI_DACS_SLOT_MASK) >> AC97_EI_DACS_SLOT_SHIFT,
 186                         ext & AC97_EI_VRM ? " VRM" : "",
 187                         ext & AC97_EI_SPDIF ? " SPDIF" : "",
 188                         ext & AC97_EI_DRA ? " DRA" : "",
 189                         ext & AC97_EI_VRA ? " VRA" : "");
 190         val = snd_ac97_read(ac97, AC97_EXTENDED_STATUS);
 191         snd_iprintf(buffer, "Extended status  :%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n",
 192                         val & AC97_EA_PRL ? " PRL" : "",
 193                         val & AC97_EA_PRK ? " PRK" : "",
 194                         val & AC97_EA_PRJ ? " PRJ" : "",
 195                         val & AC97_EA_PRI ? " PRI" : "",
 196                         val & AC97_EA_SPCV ? " SPCV" : "",
 197                         val & AC97_EA_MDAC ? " MADC" : "",
 198                         val & AC97_EA_LDAC ? " LDAC" : "",
 199                         val & AC97_EA_SDAC ? " SDAC" : "",
 200                         val & AC97_EA_CDAC ? " CDAC" : "",
 201                         ext & AC97_EI_SPDIF ? spdif_slots[(val & AC97_EA_SPSA_SLOT_MASK) >> AC97_EA_SPSA_SLOT_SHIFT] : "",
 202                         val & AC97_EA_VRM ? " VRM" : "",
 203                         val & AC97_EA_SPDIF ? " SPDIF" : "",
 204                         val & AC97_EA_DRA ? " DRA" : "",
 205                         val & AC97_EA_VRA ? " VRA" : "");
 206         if (ext & AC97_EI_VRA) {        /* VRA */
 207                 val = snd_ac97_read(ac97, AC97_PCM_FRONT_DAC_RATE);
 208                 snd_iprintf(buffer, "PCM front DAC    : %iHz\n", val);
 209                 if (ext & AC97_EI_SDAC) {
 210                         val = snd_ac97_read(ac97, AC97_PCM_SURR_DAC_RATE);
 211                         snd_iprintf(buffer, "PCM Surr DAC     : %iHz\n", val);
 212                 }
 213                 if (ext & AC97_EI_LDAC) {
 214                         val = snd_ac97_read(ac97, AC97_PCM_LFE_DAC_RATE);
 215                         snd_iprintf(buffer, "PCM LFE DAC      : %iHz\n", val);
 216                 }
 217                 val = snd_ac97_read(ac97, AC97_PCM_LR_ADC_RATE);
 218                 snd_iprintf(buffer, "PCM ADC          : %iHz\n", val);
 219         }
 220         if (ext & AC97_EI_VRM) {
 221                 val = snd_ac97_read(ac97, AC97_PCM_MIC_ADC_RATE);
 222                 snd_iprintf(buffer, "PCM MIC ADC      : %iHz\n", val);
 223         }
 224         if ((ext & AC97_EI_SPDIF) || (ac97->flags & AC97_CS_SPDIF) ||
 225             (ac97->id == AC97_ID_YMF743)) {
 226                 if (ac97->flags & AC97_CS_SPDIF)
 227                         val = snd_ac97_read(ac97, AC97_CSR_SPDIF);
 228                 else if (ac97->id == AC97_ID_YMF743) {
 229                         val = snd_ac97_read(ac97, AC97_YMF7X3_DIT_CTRL);
 230                         val = 0x2000 | (val & 0xff00) >> 4 | (val & 0x38) >> 2;
 231                 } else
 232                         val = snd_ac97_read(ac97, AC97_SPDIF);
 233
 234                 snd_iprintf(buffer, "SPDIF Control    :%s%s%s%s Category=0x%x Generation=%i%s%s%s\n",
 235                         val & AC97_SC_PRO ? " PRO" : " Consumer",
 236                         val & AC97_SC_NAUDIO ? " Non-audio" : " PCM",
 237                         val & AC97_SC_COPY ? "" : " Copyright",
 238                         val & AC97_SC_PRE ? " Preemph50/15" : "",
 239                         (val & AC97_SC_CC_MASK) >> AC97_SC_CC_SHIFT,
 240                         (val & AC97_SC_L) >> 11,
 241                         (ac97->flags & AC97_CS_SPDIF) ?
 242                             spdif_rates_cs4205[(val & AC97_SC_SPSR_MASK) >> AC97_SC_SPSR_SHIFT] :
 243                             spdif_rates[(val & AC97_SC_SPSR_MASK) >> AC97_SC_SPSR_SHIFT],
 244                         (ac97->flags & AC97_CS_SPDIF) ?
 245                             (val & AC97_SC_DRS ? " Validity" : "") :
 246                             (val & AC97_SC_DRS ? " DRS" : ""),
 247                         (ac97->flags & AC97_CS_SPDIF) ?
 248                             (val & AC97_SC_V ? " Enabled" : "") :
 249                             (val & AC97_SC_V ? " Validity" : ""));
 250                 /* ALC650 specific*/
 251                 if ((ac97->id & 0xfffffff0) == 0x414c4720 &&
 252                     (snd_ac97_read(ac97, AC97_ALC650_CLOCK) & 0x01)) {
 253                         val = snd_ac97_read(ac97, AC97_ALC650_SPDIF_INPUT_STATUS2);
 254                         if (val & AC97_ALC650_CLOCK_LOCK) {
 255                                 val = snd_ac97_read(ac97, AC97_ALC650_SPDIF_INPUT_STATUS1);
 256                                 snd_iprintf(buffer, "SPDIF In Status  :%s%s%s%s Category=0x%x Generation=%i",
 257                                             val & AC97_ALC650_PRO ? " PRO" : " Consumer",
 258                                             val & AC97_ALC650_NAUDIO ? " Non-audio" : " PCM",
 259                                             val & AC97_ALC650_COPY ? "" : " Copyright",
 260                                             val & AC97_ALC650_PRE ? " Preemph50/15" : "",
 261                                             (val & AC97_ALC650_CC_MASK) >> AC97_ALC650_CC_SHIFT,
 262                                             (val & AC97_ALC650_L) >> 15);
 263                                 val = snd_ac97_read(ac97, AC97_ALC650_SPDIF_INPUT_STATUS2);
 264                                 snd_iprintf(buffer, "%s Accuracy=%i%s%s\n",
 265                                             spdif_rates[(val & AC97_ALC650_SPSR_MASK) >> AC97_ALC650_SPSR_SHIFT],
 266                                             (val & AC97_ALC650_CLOCK_ACCURACY) >> AC97_ALC650_CLOCK_SHIFT,
 267                                             (val & AC97_ALC650_CLOCK_LOCK ? " Locked" : " Unlocked"),
 268                                             (val & AC97_ALC650_V ? " Validity?" : ""));
 269                         } else {
 270                                 snd_iprintf(buffer, "SPDIF In Status  : Not Locked\n");
 271                         }
 272                 }
 273         }
 274         if ((ac97->ext_id & AC97_EI_REV_MASK) >= AC97_EI_REV_23) {
 275                 val = snd_ac97_read(ac97, AC97_INT_PAGING);
 276                 snd_ac97_update_bits(ac97, AC97_INT_PAGING,
 277                                      AC97_PAGE_MASK, AC97_PAGE_1);
 278                 snd_ac97_proc_read_functions(ac97, buffer);
 279                 snd_ac97_update_bits(ac97, AC97_INT_PAGING,
 280                                      AC97_PAGE_MASK, val & AC97_PAGE_MASK);
 281         }
 282
 283
 284       __modem:
 285         mext = snd_ac97_read(ac97, AC97_EXTENDED_MID);
 286         if (mext == 0)
 287                 return;
 288
 289         snd_iprintf(buffer, "Extended modem ID: codec=%i%s%s%s%s%s\n",
 290                         (mext & AC97_MEI_ADDR_MASK) >> AC97_MEI_ADDR_SHIFT,
 291                         mext & AC97_MEI_CID2 ? " CID2" : "",
 292                         mext & AC97_MEI_CID1 ? " CID1" : "",
 293                         mext & AC97_MEI_HANDSET ? " HSET" : "",
 294                         mext & AC97_MEI_LINE2 ? " LIN2" : "",
 295                         mext & AC97_MEI_LINE1 ? " LIN1" : "");
 296         val = snd_ac97_read(ac97, AC97_EXTENDED_MSTATUS);
 297         snd_iprintf(buffer, "Modem status     :%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n",
 298                         val & AC97_MEA_GPIO ? " GPIO" : "",
 299                         val & AC97_MEA_MREF ? " MREF" : "",
 300                         val & AC97_MEA_ADC1 ? " ADC1" : "",
 301                         val & AC97_MEA_DAC1 ? " DAC1" : "",
 302                         val & AC97_MEA_ADC2 ? " ADC2" : "",
 303                         val & AC97_MEA_DAC2 ? " DAC2" : "",
 304                         val & AC97_MEA_HADC ? " HADC" : "",
 305                         val & AC97_MEA_HDAC ? " HDAC" : "",
 306                         val & AC97_MEA_PRA ? " PRA(GPIO)" : "",
 307                         val & AC97_MEA_PRB ? " PRB(res)" : "",
 308                         val & AC97_MEA_PRC ? " PRC(ADC1)" : "",
 309                         val & AC97_MEA_PRD ? " PRD(DAC1)" : "",
 310                         val & AC97_MEA_PRE ? " PRE(ADC2)" : "",
 311                         val & AC97_MEA_PRF ? " PRF(DAC2)" : "",
 312                         val & AC97_MEA_PRG ? " PRG(HADC)" : "",
 313                         val & AC97_MEA_PRH ? " PRH(HDAC)" : "");
 314         if (mext & AC97_MEI_LINE1) {
 315                 val = snd_ac97_read(ac97, AC97_LINE1_RATE);
 316                 snd_iprintf(buffer, "Line1 rate       : %iHz\n", val);
 317         }
 318         if (mext & AC97_MEI_LINE2) {
 319                 val = snd_ac97_read(ac97, AC97_LINE2_RATE);
 320                 snd_iprintf(buffer, "Line2 rate       : %iHz\n", val);
 321         }
 322         if (mext & AC97_MEI_HANDSET) {
 323                 val = snd_ac97_read(ac97, AC97_HANDSET_RATE);
 324                 snd_iprintf(buffer, "Headset rate     : %iHz\n", val);
 325         }
 326 }
 327
 328 static void snd_ac97_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
 329 {
 330         struct snd_ac97 *ac97 = entry->private_data;
 331
 332         mutex_lock(&ac97->page_mutex);
 333         if ((ac97->id & 0xffffff40) == AC97_ID_AD1881) {        // Analog Devices AD1881/85/86
 334                 int idx;
 335                 for (idx = 0; idx < 3; idx++)
 336                         if (ac97->spec.ad18xx.id[idx]) {
 337                                 /* select single codec */
 338                                 snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG, 0x7000,
 339                                                      ac97->spec.ad18xx.unchained[idx] | ac97->spec.ad18xx.chained[idx]);
 340                                 snd_ac97_proc_read_main(ac97, buffer, idx);
 341                                 snd_iprintf(buffer, "\n\n");
 342                         }
 343                 /* select all codecs */
 344                 snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG, 0x7000, 0x7000);
 345
 346                 snd_iprintf(buffer, "\nAD18XX configuration\n");
 347                 snd_iprintf(buffer, "Unchained        : 0x%04x,0x%04x,0x%04x\n",
 348                         ac97->spec.ad18xx.unchained[0],
 349                         ac97->spec.ad18xx.unchained[1],
 350                         ac97->spec.ad18xx.unchained[2]);
 351                 snd_iprintf(buffer, "Chained          : 0x%04x,0x%04x,0x%04x\n",
 352                         ac97->spec.ad18xx.chained[0],
 353                         ac97->spec.ad18xx.chained[1],
 354                         ac97->spec.ad18xx.chained[2]);
 355         } else {
 356                 snd_ac97_proc_read_main(ac97, buffer, 0);
 357         }
 358         mutex_unlock(&ac97->page_mutex);
 359 }
 360
 361 #ifdef CONFIG_SND_DEBUG
 362 /* direct register write for debugging */
 363 static void snd_ac97_proc_regs_write(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
 364 {
 365         struct snd_ac97 *ac97 = entry->private_data;
 366         char line[64];
 367         unsigned int reg, val;
 368         mutex_lock(&ac97->page_mutex);
 369         while (!snd_info_get_line(buffer, line, sizeof(line))) {
 370                 if (sscanf(line, "%x %x", &reg, &val) != 2)
 371                         continue;
 372                 /* register must be even */
 373                 if (reg < 0x80 && (reg & 1) == 0 && val <= 0xffff)
 374                         snd_ac97_write_cache(ac97, reg, val);
 375         }
 376         mutex_unlock(&ac97->page_mutex);
 377 }
 378 #endif
 379
 380 static void snd_ac97_proc_regs_read_main(struct snd_ac97 *ac97, struct snd_info_buffer *buffer, int subidx)
 381 {
 382         int reg, val;
 383
 384         for (reg = 0; reg < 0x80; reg += 2) {
 385                 val = snd_ac97_read(ac97, reg);
 386                 snd_iprintf(buffer, "%i:%02x = %04x\n", subidx, reg, val);
 387         }
 388 }
 389
 390 static void snd_ac97_proc_regs_read(struct snd_info_entry *entry,
 391                                     struct snd_info_buffer *buffer)
 392 {
 393         struct snd_ac97 *ac97 = entry->private_data;
 394
 395         mutex_lock(&ac97->page_mutex);
 396         if ((ac97->id & 0xffffff40) == AC97_ID_AD1881) {        // Analog Devices AD1881/85/86
 397
 398                 int idx;
 399                 for (idx = 0; idx < 3; idx++)
 400                         if (ac97->spec.ad18xx.id[idx]) {
 401                                 /* select single codec */
 402                                 snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG, 0x7000,
 403                                                      ac97->spec.ad18xx.unchained[idx] | ac97->spec.ad18xx.chained[idx]);
 404                                 snd_ac97_proc_regs_read_main(ac97, buffer, idx);
 405                         }
 406                 /* select all codecs */
 407                 snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG, 0x7000, 0x7000);
 408         } else {
 409                 snd_ac97_proc_regs_read_main(ac97, buffer, 0);
 410         }
 411         mutex_unlock(&ac97->page_mutex);
 412 }
 413
 414 void snd_ac97_proc_init(struct snd_ac97 * ac97)
 415 {
 416         struct snd_info_entry *entry;
 417         char name[32];
 418         const char *prefix;
 419
 420         if (ac97->bus->proc == NULL)
 421                 return;
 422         prefix = ac97_is_audio(ac97) ? "ac97" : "mc97";
 423         sprintf(name, "%s#%d-%d", prefix, ac97->addr, ac97->num);
 424         entry = snd_info_create_card_entry(ac97->bus->card, name,
 425                                            ac97->bus->proc);
 426         if (entry)
 427                 snd_info_set_text_ops(entry, ac97, snd_ac97_proc_read);
 428         ac97->proc = entry;
 429         sprintf(name, "%s#%d-%d+regs", prefix, ac97->addr, ac97->num);
 430         entry = snd_info_create_card_entry(ac97->bus->card, name,
 431                                            ac97->bus->proc);
 432         if (entry) {
 433                 snd_info_set_text_ops(entry, ac97, snd_ac97_proc_regs_read);
 434 #ifdef CONFIG_SND_DEBUG
 435                 entry->mode |= 0200;
 436                 entry->c.text.write = snd_ac97_proc_regs_write;
 437 #endif
 438         }
 439         ac97->proc_regs = entry;
 440 }
 441
 442 void snd_ac97_proc_done(struct snd_ac97 * ac97)
 443 {
 444         snd_info_free_entry(ac97->proc_regs);
 445         ac97->proc_regs = NULL;
 446         snd_info_free_entry(ac97->proc);
 447         ac97->proc = NULL;
 448 }
 449
 450 void snd_ac97_bus_proc_init(struct snd_ac97_bus * bus)
 451 {
 452         struct snd_info_entry *entry;
 453         char name[32];
 454
 455         sprintf(name, "codec97#%d", bus->num);
 456         entry = snd_info_create_card_entry(bus->card, name,
 457                                            bus->card->proc_root);
 458         if (entry)
 459                 entry->mode = S_IFDIR | 0555;
 460         bus->proc = entry;
 461 }
 462
 463 void snd_ac97_bus_proc_done(struct snd_ac97_bus * bus)
 464 {
 465         snd_info_free_entry(bus->proc);
 466         bus->proc = NULL;
 467 }