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0001 // SPDX-License-Identifier: GPL-2.0-or-later
0002 /*
0003  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
0004  *  Universal interface for Audio Codec '97
0005  *
0006  *  For more details look to AC '97 component specification revision 2.2
0007  *  by Intel Corporation (http://developer.intel.com).
0008  */
0009 
0010 #include <linux/mutex.h>
0011 
0012 #include <sound/core.h>
0013 #include <sound/ac97_codec.h>
0014 #include <sound/asoundef.h>
0015 #include "ac97_local.h"
0016 #include "ac97_id.h"
0017 
0018 /*
0019  * proc interface
0020  */
0021 
0022 static void snd_ac97_proc_read_functions(struct snd_ac97 *ac97, struct snd_info_buffer *buffer)
0023 {
0024     int header = 0, function;
0025     unsigned short info, sense_info;
0026     static const char *function_names[12] = {
0027         "Master Out", "AUX Out", "Center/LFE Out", "SPDIF Out",
0028         "Phone In", "Mic 1", "Mic 2", "Line In", "CD In", "Video In",
0029         "Aux In", "Mono Out"
0030     };
0031     static const char *locations[8] = {
0032         "Rear I/O Panel", "Front Panel", "Motherboard", "Dock/External",
0033         "reserved", "reserved", "reserved", "NC/unused"
0034     };
0035 
0036     for (function = 0; function < 12; ++function) {
0037         snd_ac97_write(ac97, AC97_FUNC_SELECT, function << 1);
0038         info = snd_ac97_read(ac97, AC97_FUNC_INFO);
0039         if (!(info & 0x0001))
0040             continue;
0041         if (!header) {
0042             snd_iprintf(buffer, "\n                    Gain     Inverted  Buffer delay  Location\n");
0043             header = 1;
0044         }
0045         sense_info = snd_ac97_read(ac97, AC97_SENSE_INFO);
0046         snd_iprintf(buffer, "%-17s: %3d.%d dBV    %c      %2d/fs         %s\n",
0047                 function_names[function],
0048                 (info & 0x8000 ? -1 : 1) * ((info & 0x7000) >> 12) * 3 / 2,
0049                 ((info & 0x0800) >> 11) * 5,
0050                 info & 0x0400 ? 'X' : '-',
0051                 (info & 0x03e0) >> 5,
0052                 locations[sense_info >> 13]);
0053     }
0054 }
0055 
0056 static const char *snd_ac97_stereo_enhancements[] =
0057 {
0058   /*   0 */ "No 3D Stereo Enhancement",
0059   /*   1 */ "Analog Devices Phat Stereo",
0060   /*   2 */ "Creative Stereo Enhancement",
0061   /*   3 */ "National Semi 3D Stereo Enhancement",
0062   /*   4 */ "YAMAHA Ymersion",
0063   /*   5 */ "BBE 3D Stereo Enhancement",
0064   /*   6 */ "Crystal Semi 3D Stereo Enhancement",
0065   /*   7 */ "Qsound QXpander",
0066   /*   8 */ "Spatializer 3D Stereo Enhancement",
0067   /*   9 */ "SRS 3D Stereo Enhancement",
0068   /*  10 */ "Platform Tech 3D Stereo Enhancement",
0069   /*  11 */ "AKM 3D Audio",
0070   /*  12 */ "Aureal Stereo Enhancement",
0071   /*  13 */ "Aztech 3D Enhancement",
0072   /*  14 */ "Binaura 3D Audio Enhancement",
0073   /*  15 */ "ESS Technology Stereo Enhancement",
0074   /*  16 */ "Harman International VMAx",
0075   /*  17 */ "Nvidea/IC Ensemble/KS Waves 3D Stereo Enhancement",
0076   /*  18 */ "Philips Incredible Sound",
0077   /*  19 */ "Texas Instruments 3D Stereo Enhancement",
0078   /*  20 */ "VLSI Technology 3D Stereo Enhancement",
0079   /*  21 */ "TriTech 3D Stereo Enhancement",
0080   /*  22 */ "Realtek 3D Stereo Enhancement",
0081   /*  23 */ "Samsung 3D Stereo Enhancement",
0082   /*  24 */ "Wolfson Microelectronics 3D Enhancement",
0083   /*  25 */ "Delta Integration 3D Enhancement",
0084   /*  26 */ "SigmaTel 3D Enhancement",
0085   /*  27 */ "IC Ensemble/KS Waves",
0086   /*  28 */ "Rockwell 3D Stereo Enhancement",
0087   /*  29 */ "Reserved 29",
0088   /*  30 */ "Reserved 30",
0089   /*  31 */ "Reserved 31"
0090 };
0091 
0092 static void snd_ac97_proc_read_main(struct snd_ac97 *ac97, struct snd_info_buffer *buffer, int subidx)
0093 {
0094     char name[64];
0095     unsigned short val, tmp, ext, mext;
0096     static const char *spdif_slots[4] = { " SPDIF=3/4", " SPDIF=7/8", " SPDIF=6/9", " SPDIF=10/11" };
0097     static const char *spdif_rates[4] = { " Rate=44.1kHz", " Rate=res", " Rate=48kHz", " Rate=32kHz" };
0098     static const char *spdif_rates_cs4205[4] = { " Rate=48kHz", " Rate=44.1kHz", " Rate=res", " Rate=res" };
0099     static const char *double_rate_slots[4] = { "10/11", "7/8", "reserved", "reserved" };
0100 
0101     snd_ac97_get_name(NULL, ac97->id, name, 0);
0102     snd_iprintf(buffer, "%d-%d/%d: %s\n\n", ac97->addr, ac97->num, subidx, name);
0103 
0104     if ((ac97->scaps & AC97_SCAP_AUDIO) == 0)
0105         goto __modem;
0106 
0107         snd_iprintf(buffer, "PCI Subsys Vendor: 0x%04x\n",
0108                 ac97->subsystem_vendor);
0109         snd_iprintf(buffer, "PCI Subsys Device: 0x%04x\n\n",
0110                     ac97->subsystem_device);
0111 
0112     snd_iprintf(buffer, "Flags: %x\n", ac97->flags);
0113 
0114     if ((ac97->ext_id & AC97_EI_REV_MASK) >= AC97_EI_REV_23) {
0115         val = snd_ac97_read(ac97, AC97_INT_PAGING);
0116         snd_ac97_update_bits(ac97, AC97_INT_PAGING,
0117                      AC97_PAGE_MASK, AC97_PAGE_1);
0118         tmp = snd_ac97_read(ac97, AC97_CODEC_CLASS_REV);
0119         snd_iprintf(buffer, "Revision         : 0x%02x\n", tmp & 0xff);
0120         snd_iprintf(buffer, "Compat. Class    : 0x%02x\n", (tmp >> 8) & 0x1f);
0121         snd_iprintf(buffer, "Subsys. Vendor ID: 0x%04x\n",
0122                 snd_ac97_read(ac97, AC97_PCI_SVID));
0123         snd_iprintf(buffer, "Subsys. ID       : 0x%04x\n\n",
0124                 snd_ac97_read(ac97, AC97_PCI_SID));
0125         snd_ac97_update_bits(ac97, AC97_INT_PAGING,
0126                      AC97_PAGE_MASK, val & AC97_PAGE_MASK);
0127     }
0128 
0129     // val = snd_ac97_read(ac97, AC97_RESET);
0130     val = ac97->caps;
0131     snd_iprintf(buffer, "Capabilities     :%s%s%s%s%s%s\n",
0132                 val & AC97_BC_DEDICATED_MIC ? " -dedicated MIC PCM IN channel-" : "",
0133             val & AC97_BC_RESERVED1 ? " -reserved1-" : "",
0134             val & AC97_BC_BASS_TREBLE ? " -bass & treble-" : "",
0135             val & AC97_BC_SIM_STEREO ? " -simulated stereo-" : "",
0136             val & AC97_BC_HEADPHONE ? " -headphone out-" : "",
0137             val & AC97_BC_LOUDNESS ? " -loudness-" : "");
0138     tmp = ac97->caps & AC97_BC_DAC_MASK;
0139     snd_iprintf(buffer, "DAC resolution   : %s%s%s%s\n",
0140             tmp == AC97_BC_16BIT_DAC ? "16-bit" : "",
0141             tmp == AC97_BC_18BIT_DAC ? "18-bit" : "",
0142             tmp == AC97_BC_20BIT_DAC ? "20-bit" : "",
0143             tmp == AC97_BC_DAC_MASK ? "???" : "");
0144     tmp = ac97->caps & AC97_BC_ADC_MASK;
0145     snd_iprintf(buffer, "ADC resolution   : %s%s%s%s\n",
0146             tmp == AC97_BC_16BIT_ADC ? "16-bit" : "",
0147             tmp == AC97_BC_18BIT_ADC ? "18-bit" : "",
0148             tmp == AC97_BC_20BIT_ADC ? "20-bit" : "",
0149             tmp == AC97_BC_ADC_MASK ? "???" : "");
0150     snd_iprintf(buffer, "3D enhancement   : %s\n",
0151         snd_ac97_stereo_enhancements[(val >> 10) & 0x1f]);
0152     snd_iprintf(buffer, "\nCurrent setup\n");
0153     val = snd_ac97_read(ac97, AC97_MIC);
0154     snd_iprintf(buffer, "Mic gain         : %s [%s]\n", val & 0x0040 ? "+20dB" : "+0dB", ac97->regs[AC97_MIC] & 0x0040 ? "+20dB" : "+0dB");
0155     val = snd_ac97_read(ac97, AC97_GENERAL_PURPOSE);
0156     snd_iprintf(buffer, "POP path         : %s 3D\n"
0157             "Sim. stereo      : %s\n"
0158             "3D enhancement   : %s\n"
0159             "Loudness         : %s\n"
0160             "Mono output      : %s\n"
0161             "Mic select       : %s\n"
0162             "ADC/DAC loopback : %s\n",
0163             val & 0x8000 ? "post" : "pre",
0164             val & 0x4000 ? "on" : "off",
0165             val & 0x2000 ? "on" : "off",
0166             val & 0x1000 ? "on" : "off",
0167             val & 0x0200 ? "Mic" : "MIX",
0168             val & 0x0100 ? "Mic2" : "Mic1",
0169             val & 0x0080 ? "on" : "off");
0170     if (ac97->ext_id & AC97_EI_DRA)
0171         snd_iprintf(buffer, "Double rate slots: %s\n",
0172                 double_rate_slots[(val >> 10) & 3]);
0173 
0174     ext = snd_ac97_read(ac97, AC97_EXTENDED_ID);
0175     if (ext == 0)
0176         goto __modem;
0177         
0178     snd_iprintf(buffer, "Extended ID      : codec=%i rev=%i%s%s%s%s DSA=%i%s%s%s%s\n",
0179             (ext & AC97_EI_ADDR_MASK) >> AC97_EI_ADDR_SHIFT,
0180             (ext & AC97_EI_REV_MASK) >> AC97_EI_REV_SHIFT,
0181             ext & AC97_EI_AMAP ? " AMAP" : "",
0182             ext & AC97_EI_LDAC ? " LDAC" : "",
0183             ext & AC97_EI_SDAC ? " SDAC" : "",
0184             ext & AC97_EI_CDAC ? " CDAC" : "",
0185             (ext & AC97_EI_DACS_SLOT_MASK) >> AC97_EI_DACS_SLOT_SHIFT,
0186             ext & AC97_EI_VRM ? " VRM" : "",
0187             ext & AC97_EI_SPDIF ? " SPDIF" : "",
0188             ext & AC97_EI_DRA ? " DRA" : "",
0189             ext & AC97_EI_VRA ? " VRA" : "");
0190     val = snd_ac97_read(ac97, AC97_EXTENDED_STATUS);
0191     snd_iprintf(buffer, "Extended status  :%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n",
0192             val & AC97_EA_PRL ? " PRL" : "",
0193             val & AC97_EA_PRK ? " PRK" : "",
0194             val & AC97_EA_PRJ ? " PRJ" : "",
0195             val & AC97_EA_PRI ? " PRI" : "",
0196             val & AC97_EA_SPCV ? " SPCV" : "",
0197             val & AC97_EA_MDAC ? " MADC" : "",
0198             val & AC97_EA_LDAC ? " LDAC" : "",
0199             val & AC97_EA_SDAC ? " SDAC" : "",
0200             val & AC97_EA_CDAC ? " CDAC" : "",
0201             ext & AC97_EI_SPDIF ? spdif_slots[(val & AC97_EA_SPSA_SLOT_MASK) >> AC97_EA_SPSA_SLOT_SHIFT] : "",
0202             val & AC97_EA_VRM ? " VRM" : "",
0203             val & AC97_EA_SPDIF ? " SPDIF" : "",
0204             val & AC97_EA_DRA ? " DRA" : "",
0205             val & AC97_EA_VRA ? " VRA" : "");
0206     if (ext & AC97_EI_VRA) {    /* VRA */
0207         val = snd_ac97_read(ac97, AC97_PCM_FRONT_DAC_RATE);
0208         snd_iprintf(buffer, "PCM front DAC    : %iHz\n", val);
0209         if (ext & AC97_EI_SDAC) {
0210             val = snd_ac97_read(ac97, AC97_PCM_SURR_DAC_RATE);
0211             snd_iprintf(buffer, "PCM Surr DAC     : %iHz\n", val);
0212         }
0213         if (ext & AC97_EI_LDAC) {
0214             val = snd_ac97_read(ac97, AC97_PCM_LFE_DAC_RATE);
0215             snd_iprintf(buffer, "PCM LFE DAC      : %iHz\n", val);
0216         }
0217         val = snd_ac97_read(ac97, AC97_PCM_LR_ADC_RATE);
0218         snd_iprintf(buffer, "PCM ADC          : %iHz\n", val);
0219     }
0220     if (ext & AC97_EI_VRM) {
0221         val = snd_ac97_read(ac97, AC97_PCM_MIC_ADC_RATE);
0222         snd_iprintf(buffer, "PCM MIC ADC      : %iHz\n", val);
0223     }
0224     if ((ext & AC97_EI_SPDIF) || (ac97->flags & AC97_CS_SPDIF) ||
0225         (ac97->id == AC97_ID_YMF743)) {
0226             if (ac97->flags & AC97_CS_SPDIF)
0227             val = snd_ac97_read(ac97, AC97_CSR_SPDIF);
0228         else if (ac97->id == AC97_ID_YMF743) {
0229             val = snd_ac97_read(ac97, AC97_YMF7X3_DIT_CTRL);
0230             val = 0x2000 | (val & 0xff00) >> 4 | (val & 0x38) >> 2;
0231         } else
0232             val = snd_ac97_read(ac97, AC97_SPDIF);
0233 
0234         snd_iprintf(buffer, "SPDIF Control    :%s%s%s%s Category=0x%x Generation=%i%s%s%s\n",
0235             val & AC97_SC_PRO ? " PRO" : " Consumer",
0236             val & AC97_SC_NAUDIO ? " Non-audio" : " PCM",
0237             val & AC97_SC_COPY ? "" : " Copyright",
0238             val & AC97_SC_PRE ? " Preemph50/15" : "",
0239             (val & AC97_SC_CC_MASK) >> AC97_SC_CC_SHIFT,
0240             (val & AC97_SC_L) >> 11,
0241             (ac97->flags & AC97_CS_SPDIF) ?
0242                 spdif_rates_cs4205[(val & AC97_SC_SPSR_MASK) >> AC97_SC_SPSR_SHIFT] :
0243                 spdif_rates[(val & AC97_SC_SPSR_MASK) >> AC97_SC_SPSR_SHIFT],
0244             (ac97->flags & AC97_CS_SPDIF) ?
0245                 (val & AC97_SC_DRS ? " Validity" : "") :
0246                 (val & AC97_SC_DRS ? " DRS" : ""),
0247             (ac97->flags & AC97_CS_SPDIF) ?
0248                 (val & AC97_SC_V ? " Enabled" : "") :
0249                 (val & AC97_SC_V ? " Validity" : ""));
0250         /* ALC650 specific*/
0251         if ((ac97->id & 0xfffffff0) == 0x414c4720 &&
0252             (snd_ac97_read(ac97, AC97_ALC650_CLOCK) & 0x01)) {
0253             val = snd_ac97_read(ac97, AC97_ALC650_SPDIF_INPUT_STATUS2);
0254             if (val & AC97_ALC650_CLOCK_LOCK) {
0255                 val = snd_ac97_read(ac97, AC97_ALC650_SPDIF_INPUT_STATUS1);
0256                 snd_iprintf(buffer, "SPDIF In Status  :%s%s%s%s Category=0x%x Generation=%i",
0257                         val & AC97_ALC650_PRO ? " PRO" : " Consumer",
0258                         val & AC97_ALC650_NAUDIO ? " Non-audio" : " PCM",
0259                         val & AC97_ALC650_COPY ? "" : " Copyright",
0260                         val & AC97_ALC650_PRE ? " Preemph50/15" : "",
0261                         (val & AC97_ALC650_CC_MASK) >> AC97_ALC650_CC_SHIFT,
0262                         (val & AC97_ALC650_L) >> 15);
0263                 val = snd_ac97_read(ac97, AC97_ALC650_SPDIF_INPUT_STATUS2);
0264                 snd_iprintf(buffer, "%s Accuracy=%i%s%s\n",
0265                         spdif_rates[(val & AC97_ALC650_SPSR_MASK) >> AC97_ALC650_SPSR_SHIFT],
0266                         (val & AC97_ALC650_CLOCK_ACCURACY) >> AC97_ALC650_CLOCK_SHIFT,
0267                         (val & AC97_ALC650_CLOCK_LOCK ? " Locked" : " Unlocked"),
0268                         (val & AC97_ALC650_V ? " Validity?" : ""));
0269             } else {
0270                 snd_iprintf(buffer, "SPDIF In Status  : Not Locked\n");
0271             }
0272         }
0273     }
0274     if ((ac97->ext_id & AC97_EI_REV_MASK) >= AC97_EI_REV_23) {
0275         val = snd_ac97_read(ac97, AC97_INT_PAGING);
0276         snd_ac97_update_bits(ac97, AC97_INT_PAGING,
0277                      AC97_PAGE_MASK, AC97_PAGE_1);
0278         snd_ac97_proc_read_functions(ac97, buffer);
0279         snd_ac97_update_bits(ac97, AC97_INT_PAGING,
0280                      AC97_PAGE_MASK, val & AC97_PAGE_MASK);
0281     }
0282 
0283 
0284       __modem:
0285     mext = snd_ac97_read(ac97, AC97_EXTENDED_MID);
0286     if (mext == 0)
0287         return;
0288     
0289     snd_iprintf(buffer, "Extended modem ID: codec=%i%s%s%s%s%s\n",
0290             (mext & AC97_MEI_ADDR_MASK) >> AC97_MEI_ADDR_SHIFT,
0291             mext & AC97_MEI_CID2 ? " CID2" : "",
0292             mext & AC97_MEI_CID1 ? " CID1" : "",
0293             mext & AC97_MEI_HANDSET ? " HSET" : "",
0294             mext & AC97_MEI_LINE2 ? " LIN2" : "",
0295             mext & AC97_MEI_LINE1 ? " LIN1" : "");
0296     val = snd_ac97_read(ac97, AC97_EXTENDED_MSTATUS);
0297     snd_iprintf(buffer, "Modem status     :%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n",
0298             val & AC97_MEA_GPIO ? " GPIO" : "",
0299             val & AC97_MEA_MREF ? " MREF" : "",
0300             val & AC97_MEA_ADC1 ? " ADC1" : "",
0301             val & AC97_MEA_DAC1 ? " DAC1" : "",
0302             val & AC97_MEA_ADC2 ? " ADC2" : "",
0303             val & AC97_MEA_DAC2 ? " DAC2" : "",
0304             val & AC97_MEA_HADC ? " HADC" : "",
0305             val & AC97_MEA_HDAC ? " HDAC" : "",
0306             val & AC97_MEA_PRA ? " PRA(GPIO)" : "",
0307             val & AC97_MEA_PRB ? " PRB(res)" : "",
0308             val & AC97_MEA_PRC ? " PRC(ADC1)" : "",
0309             val & AC97_MEA_PRD ? " PRD(DAC1)" : "",
0310             val & AC97_MEA_PRE ? " PRE(ADC2)" : "",
0311             val & AC97_MEA_PRF ? " PRF(DAC2)" : "",
0312             val & AC97_MEA_PRG ? " PRG(HADC)" : "",
0313             val & AC97_MEA_PRH ? " PRH(HDAC)" : "");
0314     if (mext & AC97_MEI_LINE1) {
0315         val = snd_ac97_read(ac97, AC97_LINE1_RATE);
0316         snd_iprintf(buffer, "Line1 rate       : %iHz\n", val);
0317     }
0318     if (mext & AC97_MEI_LINE2) {
0319         val = snd_ac97_read(ac97, AC97_LINE2_RATE);
0320         snd_iprintf(buffer, "Line2 rate       : %iHz\n", val);
0321     }
0322     if (mext & AC97_MEI_HANDSET) {
0323         val = snd_ac97_read(ac97, AC97_HANDSET_RATE);
0324         snd_iprintf(buffer, "Headset rate     : %iHz\n", val);
0325     }
0326 }
0327 
0328 static void snd_ac97_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
0329 {
0330     struct snd_ac97 *ac97 = entry->private_data;
0331     
0332     mutex_lock(&ac97->page_mutex);
0333     if ((ac97->id & 0xffffff40) == AC97_ID_AD1881) {    // Analog Devices AD1881/85/86
0334         int idx;
0335         for (idx = 0; idx < 3; idx++)
0336             if (ac97->spec.ad18xx.id[idx]) {
0337                 /* select single codec */
0338                 snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG, 0x7000,
0339                              ac97->spec.ad18xx.unchained[idx] | ac97->spec.ad18xx.chained[idx]);
0340                 snd_ac97_proc_read_main(ac97, buffer, idx);
0341                 snd_iprintf(buffer, "\n\n");
0342             }
0343         /* select all codecs */
0344         snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG, 0x7000, 0x7000);
0345         
0346         snd_iprintf(buffer, "\nAD18XX configuration\n");
0347         snd_iprintf(buffer, "Unchained        : 0x%04x,0x%04x,0x%04x\n",
0348             ac97->spec.ad18xx.unchained[0],
0349             ac97->spec.ad18xx.unchained[1],
0350             ac97->spec.ad18xx.unchained[2]);
0351         snd_iprintf(buffer, "Chained          : 0x%04x,0x%04x,0x%04x\n",
0352             ac97->spec.ad18xx.chained[0],
0353             ac97->spec.ad18xx.chained[1],
0354             ac97->spec.ad18xx.chained[2]);
0355     } else {
0356         snd_ac97_proc_read_main(ac97, buffer, 0);
0357     }
0358     mutex_unlock(&ac97->page_mutex);
0359 }
0360 
0361 #ifdef CONFIG_SND_DEBUG
0362 /* direct register write for debugging */
0363 static void snd_ac97_proc_regs_write(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
0364 {
0365     struct snd_ac97 *ac97 = entry->private_data;
0366     char line[64];
0367     unsigned int reg, val;
0368     mutex_lock(&ac97->page_mutex);
0369     while (!snd_info_get_line(buffer, line, sizeof(line))) {
0370         if (sscanf(line, "%x %x", &reg, &val) != 2)
0371             continue;
0372         /* register must be even */
0373         if (reg < 0x80 && (reg & 1) == 0 && val <= 0xffff)
0374             snd_ac97_write_cache(ac97, reg, val);
0375     }
0376     mutex_unlock(&ac97->page_mutex);
0377 }
0378 #endif
0379 
0380 static void snd_ac97_proc_regs_read_main(struct snd_ac97 *ac97, struct snd_info_buffer *buffer, int subidx)
0381 {
0382     int reg, val;
0383 
0384     for (reg = 0; reg < 0x80; reg += 2) {
0385         val = snd_ac97_read(ac97, reg);
0386         snd_iprintf(buffer, "%i:%02x = %04x\n", subidx, reg, val);
0387     }
0388 }
0389 
0390 static void snd_ac97_proc_regs_read(struct snd_info_entry *entry, 
0391                     struct snd_info_buffer *buffer)
0392 {
0393     struct snd_ac97 *ac97 = entry->private_data;
0394 
0395     mutex_lock(&ac97->page_mutex);
0396     if ((ac97->id & 0xffffff40) == AC97_ID_AD1881) {    // Analog Devices AD1881/85/86
0397 
0398         int idx;
0399         for (idx = 0; idx < 3; idx++)
0400             if (ac97->spec.ad18xx.id[idx]) {
0401                 /* select single codec */
0402                 snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG, 0x7000,
0403                              ac97->spec.ad18xx.unchained[idx] | ac97->spec.ad18xx.chained[idx]);
0404                 snd_ac97_proc_regs_read_main(ac97, buffer, idx);
0405             }
0406         /* select all codecs */
0407         snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG, 0x7000, 0x7000);
0408     } else {
0409         snd_ac97_proc_regs_read_main(ac97, buffer, 0);
0410     }   
0411     mutex_unlock(&ac97->page_mutex);
0412 }
0413 
0414 void snd_ac97_proc_init(struct snd_ac97 * ac97)
0415 {
0416     struct snd_info_entry *entry;
0417     char name[32];
0418     const char *prefix;
0419 
0420     if (ac97->bus->proc == NULL)
0421         return;
0422     prefix = ac97_is_audio(ac97) ? "ac97" : "mc97";
0423     sprintf(name, "%s#%d-%d", prefix, ac97->addr, ac97->num);
0424     entry = snd_info_create_card_entry(ac97->bus->card, name,
0425                        ac97->bus->proc);
0426     if (entry)
0427         snd_info_set_text_ops(entry, ac97, snd_ac97_proc_read);
0428     ac97->proc = entry;
0429     sprintf(name, "%s#%d-%d+regs", prefix, ac97->addr, ac97->num);
0430     entry = snd_info_create_card_entry(ac97->bus->card, name,
0431                        ac97->bus->proc);
0432     if (entry) {
0433         snd_info_set_text_ops(entry, ac97, snd_ac97_proc_regs_read);
0434 #ifdef CONFIG_SND_DEBUG
0435         entry->mode |= 0200;
0436         entry->c.text.write = snd_ac97_proc_regs_write;
0437 #endif
0438     }
0439     ac97->proc_regs = entry;
0440 }
0441 
0442 void snd_ac97_proc_done(struct snd_ac97 * ac97)
0443 {
0444     snd_info_free_entry(ac97->proc_regs);
0445     ac97->proc_regs = NULL;
0446     snd_info_free_entry(ac97->proc);
0447     ac97->proc = NULL;
0448 }
0449 
0450 void snd_ac97_bus_proc_init(struct snd_ac97_bus * bus)
0451 {
0452     struct snd_info_entry *entry;
0453     char name[32];
0454 
0455     sprintf(name, "codec97#%d", bus->num);
0456     entry = snd_info_create_card_entry(bus->card, name,
0457                        bus->card->proc_root);
0458     if (entry)
0459         entry->mode = S_IFDIR | 0555;
0460     bus->proc = entry;
0461 }
0462 
0463 void snd_ac97_bus_proc_done(struct snd_ac97_bus * bus)
0464 {
0465     snd_info_free_entry(bus->proc);
0466     bus->proc = NULL;
0467 }
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