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TOMOYO Linux Cross Reference
Linux/sound/pci/ac97/ac97_proc.c

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Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  1 /*
  2  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
  3  *  Universal interface for Audio Codec '97
  4  *
  5  *  For more details look to AC '97 component specification revision 2.2
  6  *  by Intel Corporation (http://developer.intel.com).
  7  *
  8  *
  9  *   This program is free software; you can redistribute it and/or modify
 10  *   it under the terms of the GNU General Public License as published by
 11  *   the Free Software Foundation; either version 2 of the License, or
 12  *   (at your option) any later version.
 13  *
 14  *   This program is distributed in the hope that it will be useful,
 15  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 16  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 17  *   GNU General Public License for more details.
 18  *
 19  *   You should have received a copy of the GNU General Public License
 20  *   along with this program; if not, write to the Free Software
 21  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 22  *
 23  */
 24 
 25 #include <linux/mutex.h>
 26 
 27 #include <sound/core.h>
 28 #include <sound/ac97_codec.h>
 29 #include <sound/asoundef.h>
 30 #include "ac97_local.h"
 31 #include "ac97_id.h"
 32 
 33 /*
 34  * proc interface
 35  */
 36 
 37 static void snd_ac97_proc_read_functions(struct snd_ac97 *ac97, struct snd_info_buffer *buffer)
 38 {
 39         int header = 0, function;
 40         unsigned short info, sense_info;
 41         static const char *function_names[12] = {
 42                 "Master Out", "AUX Out", "Center/LFE Out", "SPDIF Out",
 43                 "Phone In", "Mic 1", "Mic 2", "Line In", "CD In", "Video In",
 44                 "Aux In", "Mono Out"
 45         };
 46         static const char *locations[8] = {
 47                 "Rear I/O Panel", "Front Panel", "Motherboard", "Dock/External",
 48                 "reserved", "reserved", "reserved", "NC/unused"
 49         };
 50 
 51         for (function = 0; function < 12; ++function) {
 52                 snd_ac97_write(ac97, AC97_FUNC_SELECT, function << 1);
 53                 info = snd_ac97_read(ac97, AC97_FUNC_INFO);
 54                 if (!(info & 0x0001))
 55                         continue;
 56                 if (!header) {
 57                         snd_iprintf(buffer, "\n                    Gain     Inverted  Buffer delay  Location\n");
 58                         header = 1;
 59                 }
 60                 sense_info = snd_ac97_read(ac97, AC97_SENSE_INFO);
 61                 snd_iprintf(buffer, "%-17s: %3d.%d dBV    %c      %2d/fs         %s\n",
 62                             function_names[function],
 63                             (info & 0x8000 ? -1 : 1) * ((info & 0x7000) >> 12) * 3 / 2,
 64                             ((info & 0x0800) >> 11) * 5,
 65                             info & 0x0400 ? 'X' : '-',
 66                             (info & 0x03e0) >> 5,
 67                             locations[sense_info >> 13]);
 68         }
 69 }
 70 
 71 static const char *snd_ac97_stereo_enhancements[] =
 72 {
 73   /*   0 */ "No 3D Stereo Enhancement",
 74   /*   1 */ "Analog Devices Phat Stereo",
 75   /*   2 */ "Creative Stereo Enhancement",
 76   /*   3 */ "National Semi 3D Stereo Enhancement",
 77   /*   4 */ "YAMAHA Ymersion",
 78   /*   5 */ "BBE 3D Stereo Enhancement",
 79   /*   6 */ "Crystal Semi 3D Stereo Enhancement",
 80   /*   7 */ "Qsound QXpander",
 81   /*   8 */ "Spatializer 3D Stereo Enhancement",
 82   /*   9 */ "SRS 3D Stereo Enhancement",
 83   /*  10 */ "Platform Tech 3D Stereo Enhancement",
 84   /*  11 */ "AKM 3D Audio",
 85   /*  12 */ "Aureal Stereo Enhancement",
 86   /*  13 */ "Aztech 3D Enhancement",
 87   /*  14 */ "Binaura 3D Audio Enhancement",
 88   /*  15 */ "ESS Technology Stereo Enhancement",
 89   /*  16 */ "Harman International VMAx",
 90   /*  17 */ "Nvidea/IC Ensemble/KS Waves 3D Stereo Enhancement",
 91   /*  18 */ "Philips Incredible Sound",
 92   /*  19 */ "Texas Instruments 3D Stereo Enhancement",
 93   /*  20 */ "VLSI Technology 3D Stereo Enhancement",
 94   /*  21 */ "TriTech 3D Stereo Enhancement",
 95   /*  22 */ "Realtek 3D Stereo Enhancement",
 96   /*  23 */ "Samsung 3D Stereo Enhancement",
 97   /*  24 */ "Wolfson Microelectronics 3D Enhancement",
 98   /*  25 */ "Delta Integration 3D Enhancement",
 99   /*  26 */ "SigmaTel 3D Enhancement",
100   /*  27 */ "IC Ensemble/KS Waves",
101   /*  28 */ "Rockwell 3D Stereo Enhancement",
102   /*  29 */ "Reserved 29",
103   /*  30 */ "Reserved 30",
104   /*  31 */ "Reserved 31"
105 };
106 
107 static void snd_ac97_proc_read_main(struct snd_ac97 *ac97, struct snd_info_buffer *buffer, int subidx)
108 {
109         char name[64];
110         unsigned short val, tmp, ext, mext;
111         static const char *spdif_slots[4] = { " SPDIF=3/4", " SPDIF=7/8", " SPDIF=6/9", " SPDIF=10/11" };
112         static const char *spdif_rates[4] = { " Rate=44.1kHz", " Rate=res", " Rate=48kHz", " Rate=32kHz" };
113         static const char *spdif_rates_cs4205[4] = { " Rate=48kHz", " Rate=44.1kHz", " Rate=res", " Rate=res" };
114         static const char *double_rate_slots[4] = { "10/11", "7/8", "reserved", "reserved" };
115 
116         snd_ac97_get_name(NULL, ac97->id, name, 0);
117         snd_iprintf(buffer, "%d-%d/%d: %s\n\n", ac97->addr, ac97->num, subidx, name);
118 
119         if ((ac97->scaps & AC97_SCAP_AUDIO) == 0)
120                 goto __modem;
121 
122         snd_iprintf(buffer, "PCI Subsys Vendor: 0x%04x\n",
123                     ac97->subsystem_vendor);
124         snd_iprintf(buffer, "PCI Subsys Device: 0x%04x\n\n",
125                     ac97->subsystem_device);
126 
127         snd_iprintf(buffer, "Flags: %x\n", ac97->flags);
128 
129         if ((ac97->ext_id & AC97_EI_REV_MASK) >= AC97_EI_REV_23) {
130                 val = snd_ac97_read(ac97, AC97_INT_PAGING);
131                 snd_ac97_update_bits(ac97, AC97_INT_PAGING,
132                                      AC97_PAGE_MASK, AC97_PAGE_1);
133                 tmp = snd_ac97_read(ac97, AC97_CODEC_CLASS_REV);
134                 snd_iprintf(buffer, "Revision         : 0x%02x\n", tmp & 0xff);
135                 snd_iprintf(buffer, "Compat. Class    : 0x%02x\n", (tmp >> 8) & 0x1f);
136                 snd_iprintf(buffer, "Subsys. Vendor ID: 0x%04x\n",
137                             snd_ac97_read(ac97, AC97_PCI_SVID));
138                 snd_iprintf(buffer, "Subsys. ID       : 0x%04x\n\n",
139                             snd_ac97_read(ac97, AC97_PCI_SID));
140                 snd_ac97_update_bits(ac97, AC97_INT_PAGING,
141                                      AC97_PAGE_MASK, val & AC97_PAGE_MASK);
142         }
143 
144         // val = snd_ac97_read(ac97, AC97_RESET);
145         val = ac97->caps;
146         snd_iprintf(buffer, "Capabilities     :%s%s%s%s%s%s\n",
147                     val & AC97_BC_DEDICATED_MIC ? " -dedicated MIC PCM IN channel-" : "",
148                     val & AC97_BC_RESERVED1 ? " -reserved1-" : "",
149                     val & AC97_BC_BASS_TREBLE ? " -bass & treble-" : "",
150                     val & AC97_BC_SIM_STEREO ? " -simulated stereo-" : "",
151                     val & AC97_BC_HEADPHONE ? " -headphone out-" : "",
152                     val & AC97_BC_LOUDNESS ? " -loudness-" : "");
153         tmp = ac97->caps & AC97_BC_DAC_MASK;
154         snd_iprintf(buffer, "DAC resolution   : %s%s%s%s\n",
155                     tmp == AC97_BC_16BIT_DAC ? "16-bit" : "",
156                     tmp == AC97_BC_18BIT_DAC ? "18-bit" : "",
157                     tmp == AC97_BC_20BIT_DAC ? "20-bit" : "",
158                     tmp == AC97_BC_DAC_MASK ? "???" : "");
159         tmp = ac97->caps & AC97_BC_ADC_MASK;
160         snd_iprintf(buffer, "ADC resolution   : %s%s%s%s\n",
161                     tmp == AC97_BC_16BIT_ADC ? "16-bit" : "",
162                     tmp == AC97_BC_18BIT_ADC ? "18-bit" : "",
163                     tmp == AC97_BC_20BIT_ADC ? "20-bit" : "",
164                     tmp == AC97_BC_ADC_MASK ? "???" : "");
165         snd_iprintf(buffer, "3D enhancement   : %s\n",
166                 snd_ac97_stereo_enhancements[(val >> 10) & 0x1f]);
167         snd_iprintf(buffer, "\nCurrent setup\n");
168         val = snd_ac97_read(ac97, AC97_MIC);
169         snd_iprintf(buffer, "Mic gain         : %s [%s]\n", val & 0x0040 ? "+20dB" : "+0dB", ac97->regs[AC97_MIC] & 0x0040 ? "+20dB" : "+0dB");
170         val = snd_ac97_read(ac97, AC97_GENERAL_PURPOSE);
171         snd_iprintf(buffer, "POP path         : %s 3D\n"
172                     "Sim. stereo      : %s\n"
173                     "3D enhancement   : %s\n"
174                     "Loudness         : %s\n"
175                     "Mono output      : %s\n"
176                     "Mic select       : %s\n"
177                     "ADC/DAC loopback : %s\n",
178                     val & 0x8000 ? "post" : "pre",
179                     val & 0x4000 ? "on" : "off",
180                     val & 0x2000 ? "on" : "off",
181                     val & 0x1000 ? "on" : "off",
182                     val & 0x0200 ? "Mic" : "MIX",
183                     val & 0x0100 ? "Mic2" : "Mic1",
184                     val & 0x0080 ? "on" : "off");
185         if (ac97->ext_id & AC97_EI_DRA)
186                 snd_iprintf(buffer, "Double rate slots: %s\n",
187                             double_rate_slots[(val >> 10) & 3]);
188 
189         ext = snd_ac97_read(ac97, AC97_EXTENDED_ID);
190         if (ext == 0)
191                 goto __modem;
192                 
193         snd_iprintf(buffer, "Extended ID      : codec=%i rev=%i%s%s%s%s DSA=%i%s%s%s%s\n",
194                         (ext & AC97_EI_ADDR_MASK) >> AC97_EI_ADDR_SHIFT,
195                         (ext & AC97_EI_REV_MASK) >> AC97_EI_REV_SHIFT,
196                         ext & AC97_EI_AMAP ? " AMAP" : "",
197                         ext & AC97_EI_LDAC ? " LDAC" : "",
198                         ext & AC97_EI_SDAC ? " SDAC" : "",
199                         ext & AC97_EI_CDAC ? " CDAC" : "",
200                         (ext & AC97_EI_DACS_SLOT_MASK) >> AC97_EI_DACS_SLOT_SHIFT,
201                         ext & AC97_EI_VRM ? " VRM" : "",
202                         ext & AC97_EI_SPDIF ? " SPDIF" : "",
203                         ext & AC97_EI_DRA ? " DRA" : "",
204                         ext & AC97_EI_VRA ? " VRA" : "");
205         val = snd_ac97_read(ac97, AC97_EXTENDED_STATUS);
206         snd_iprintf(buffer, "Extended status  :%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n",
207                         val & AC97_EA_PRL ? " PRL" : "",
208                         val & AC97_EA_PRK ? " PRK" : "",
209                         val & AC97_EA_PRJ ? " PRJ" : "",
210                         val & AC97_EA_PRI ? " PRI" : "",
211                         val & AC97_EA_SPCV ? " SPCV" : "",
212                         val & AC97_EA_MDAC ? " MADC" : "",
213                         val & AC97_EA_LDAC ? " LDAC" : "",
214                         val & AC97_EA_SDAC ? " SDAC" : "",
215                         val & AC97_EA_CDAC ? " CDAC" : "",
216                         ext & AC97_EI_SPDIF ? spdif_slots[(val & AC97_EA_SPSA_SLOT_MASK) >> AC97_EA_SPSA_SLOT_SHIFT] : "",
217                         val & AC97_EA_VRM ? " VRM" : "",
218                         val & AC97_EA_SPDIF ? " SPDIF" : "",
219                         val & AC97_EA_DRA ? " DRA" : "",
220                         val & AC97_EA_VRA ? " VRA" : "");
221         if (ext & AC97_EI_VRA) {        /* VRA */
222                 val = snd_ac97_read(ac97, AC97_PCM_FRONT_DAC_RATE);
223                 snd_iprintf(buffer, "PCM front DAC    : %iHz\n", val);
224                 if (ext & AC97_EI_SDAC) {
225                         val = snd_ac97_read(ac97, AC97_PCM_SURR_DAC_RATE);
226                         snd_iprintf(buffer, "PCM Surr DAC     : %iHz\n", val);
227                 }
228                 if (ext & AC97_EI_LDAC) {
229                         val = snd_ac97_read(ac97, AC97_PCM_LFE_DAC_RATE);
230                         snd_iprintf(buffer, "PCM LFE DAC      : %iHz\n", val);
231                 }
232                 val = snd_ac97_read(ac97, AC97_PCM_LR_ADC_RATE);
233                 snd_iprintf(buffer, "PCM ADC          : %iHz\n", val);
234         }
235         if (ext & AC97_EI_VRM) {
236                 val = snd_ac97_read(ac97, AC97_PCM_MIC_ADC_RATE);
237                 snd_iprintf(buffer, "PCM MIC ADC      : %iHz\n", val);
238         }
239         if ((ext & AC97_EI_SPDIF) || (ac97->flags & AC97_CS_SPDIF) ||
240             (ac97->id == AC97_ID_YMF743)) {
241                 if (ac97->flags & AC97_CS_SPDIF)
242                         val = snd_ac97_read(ac97, AC97_CSR_SPDIF);
243                 else if (ac97->id == AC97_ID_YMF743) {
244                         val = snd_ac97_read(ac97, AC97_YMF7X3_DIT_CTRL);
245                         val = 0x2000 | (val & 0xff00) >> 4 | (val & 0x38) >> 2;
246                 } else
247                         val = snd_ac97_read(ac97, AC97_SPDIF);
248 
249                 snd_iprintf(buffer, "SPDIF Control    :%s%s%s%s Category=0x%x Generation=%i%s%s%s\n",
250                         val & AC97_SC_PRO ? " PRO" : " Consumer",
251                         val & AC97_SC_NAUDIO ? " Non-audio" : " PCM",
252                         val & AC97_SC_COPY ? "" : " Copyright",
253                         val & AC97_SC_PRE ? " Preemph50/15" : "",
254                         (val & AC97_SC_CC_MASK) >> AC97_SC_CC_SHIFT,
255                         (val & AC97_SC_L) >> 11,
256                         (ac97->flags & AC97_CS_SPDIF) ?
257                             spdif_rates_cs4205[(val & AC97_SC_SPSR_MASK) >> AC97_SC_SPSR_SHIFT] :
258                             spdif_rates[(val & AC97_SC_SPSR_MASK) >> AC97_SC_SPSR_SHIFT],
259                         (ac97->flags & AC97_CS_SPDIF) ?
260                             (val & AC97_SC_DRS ? " Validity" : "") :
261                             (val & AC97_SC_DRS ? " DRS" : ""),
262                         (ac97->flags & AC97_CS_SPDIF) ?
263                             (val & AC97_SC_V ? " Enabled" : "") :
264                             (val & AC97_SC_V ? " Validity" : ""));
265                 /* ALC650 specific*/
266                 if ((ac97->id & 0xfffffff0) == 0x414c4720 &&
267                     (snd_ac97_read(ac97, AC97_ALC650_CLOCK) & 0x01)) {
268                         val = snd_ac97_read(ac97, AC97_ALC650_SPDIF_INPUT_STATUS2);
269                         if (val & AC97_ALC650_CLOCK_LOCK) {
270                                 val = snd_ac97_read(ac97, AC97_ALC650_SPDIF_INPUT_STATUS1);
271                                 snd_iprintf(buffer, "SPDIF In Status  :%s%s%s%s Category=0x%x Generation=%i",
272                                             val & AC97_ALC650_PRO ? " PRO" : " Consumer",
273                                             val & AC97_ALC650_NAUDIO ? " Non-audio" : " PCM",
274                                             val & AC97_ALC650_COPY ? "" : " Copyright",
275                                             val & AC97_ALC650_PRE ? " Preemph50/15" : "",
276                                             (val & AC97_ALC650_CC_MASK) >> AC97_ALC650_CC_SHIFT,
277                                             (val & AC97_ALC650_L) >> 15);
278                                 val = snd_ac97_read(ac97, AC97_ALC650_SPDIF_INPUT_STATUS2);
279                                 snd_iprintf(buffer, "%s Accuracy=%i%s%s\n",
280                                             spdif_rates[(val & AC97_ALC650_SPSR_MASK) >> AC97_ALC650_SPSR_SHIFT],
281                                             (val & AC97_ALC650_CLOCK_ACCURACY) >> AC97_ALC650_CLOCK_SHIFT,
282                                             (val & AC97_ALC650_CLOCK_LOCK ? " Locked" : " Unlocked"),
283                                             (val & AC97_ALC650_V ? " Validity?" : ""));
284                         } else {
285                                 snd_iprintf(buffer, "SPDIF In Status  : Not Locked\n");
286                         }
287                 }
288         }
289         if ((ac97->ext_id & AC97_EI_REV_MASK) >= AC97_EI_REV_23) {
290                 val = snd_ac97_read(ac97, AC97_INT_PAGING);
291                 snd_ac97_update_bits(ac97, AC97_INT_PAGING,
292                                      AC97_PAGE_MASK, AC97_PAGE_1);
293                 snd_ac97_proc_read_functions(ac97, buffer);
294                 snd_ac97_update_bits(ac97, AC97_INT_PAGING,
295                                      AC97_PAGE_MASK, val & AC97_PAGE_MASK);
296         }
297 
298 
299       __modem:
300         mext = snd_ac97_read(ac97, AC97_EXTENDED_MID);
301         if (mext == 0)
302                 return;
303         
304         snd_iprintf(buffer, "Extended modem ID: codec=%i%s%s%s%s%s\n",
305                         (mext & AC97_MEI_ADDR_MASK) >> AC97_MEI_ADDR_SHIFT,
306                         mext & AC97_MEI_CID2 ? " CID2" : "",
307                         mext & AC97_MEI_CID1 ? " CID1" : "",
308                         mext & AC97_MEI_HANDSET ? " HSET" : "",
309                         mext & AC97_MEI_LINE2 ? " LIN2" : "",
310                         mext & AC97_MEI_LINE1 ? " LIN1" : "");
311         val = snd_ac97_read(ac97, AC97_EXTENDED_MSTATUS);
312         snd_iprintf(buffer, "Modem status     :%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n",
313                         val & AC97_MEA_GPIO ? " GPIO" : "",
314                         val & AC97_MEA_MREF ? " MREF" : "",
315                         val & AC97_MEA_ADC1 ? " ADC1" : "",
316                         val & AC97_MEA_DAC1 ? " DAC1" : "",
317                         val & AC97_MEA_ADC2 ? " ADC2" : "",
318                         val & AC97_MEA_DAC2 ? " DAC2" : "",
319                         val & AC97_MEA_HADC ? " HADC" : "",
320                         val & AC97_MEA_HDAC ? " HDAC" : "",
321                         val & AC97_MEA_PRA ? " PRA(GPIO)" : "",
322                         val & AC97_MEA_PRB ? " PRB(res)" : "",
323                         val & AC97_MEA_PRC ? " PRC(ADC1)" : "",
324                         val & AC97_MEA_PRD ? " PRD(DAC1)" : "",
325                         val & AC97_MEA_PRE ? " PRE(ADC2)" : "",
326                         val & AC97_MEA_PRF ? " PRF(DAC2)" : "",
327                         val & AC97_MEA_PRG ? " PRG(HADC)" : "",
328                         val & AC97_MEA_PRH ? " PRH(HDAC)" : "");
329         if (mext & AC97_MEI_LINE1) {
330                 val = snd_ac97_read(ac97, AC97_LINE1_RATE);
331                 snd_iprintf(buffer, "Line1 rate       : %iHz\n", val);
332         }
333         if (mext & AC97_MEI_LINE2) {
334                 val = snd_ac97_read(ac97, AC97_LINE2_RATE);
335                 snd_iprintf(buffer, "Line2 rate       : %iHz\n", val);
336         }
337         if (mext & AC97_MEI_HANDSET) {
338                 val = snd_ac97_read(ac97, AC97_HANDSET_RATE);
339                 snd_iprintf(buffer, "Headset rate     : %iHz\n", val);
340         }
341 }
342 
343 static void snd_ac97_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
344 {
345         struct snd_ac97 *ac97 = entry->private_data;
346         
347         mutex_lock(&ac97->page_mutex);
348         if ((ac97->id & 0xffffff40) == AC97_ID_AD1881) {        // Analog Devices AD1881/85/86
349                 int idx;
350                 for (idx = 0; idx < 3; idx++)
351                         if (ac97->spec.ad18xx.id[idx]) {
352                                 /* select single codec */
353                                 snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG, 0x7000,
354                                                      ac97->spec.ad18xx.unchained[idx] | ac97->spec.ad18xx.chained[idx]);
355                                 snd_ac97_proc_read_main(ac97, buffer, idx);
356                                 snd_iprintf(buffer, "\n\n");
357                         }
358                 /* select all codecs */
359                 snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG, 0x7000, 0x7000);
360                 
361                 snd_iprintf(buffer, "\nAD18XX configuration\n");
362                 snd_iprintf(buffer, "Unchained        : 0x%04x,0x%04x,0x%04x\n",
363                         ac97->spec.ad18xx.unchained[0],
364                         ac97->spec.ad18xx.unchained[1],
365                         ac97->spec.ad18xx.unchained[2]);
366                 snd_iprintf(buffer, "Chained          : 0x%04x,0x%04x,0x%04x\n",
367                         ac97->spec.ad18xx.chained[0],
368                         ac97->spec.ad18xx.chained[1],
369                         ac97->spec.ad18xx.chained[2]);
370         } else {
371                 snd_ac97_proc_read_main(ac97, buffer, 0);
372         }
373         mutex_unlock(&ac97->page_mutex);
374 }
375 
376 #ifdef CONFIG_SND_DEBUG
377 /* direct register write for debugging */
378 static void snd_ac97_proc_regs_write(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
379 {
380         struct snd_ac97 *ac97 = entry->private_data;
381         char line[64];
382         unsigned int reg, val;
383         mutex_lock(&ac97->page_mutex);
384         while (!snd_info_get_line(buffer, line, sizeof(line))) {
385                 if (sscanf(line, "%x %x", &reg, &val) != 2)
386                         continue;
387                 /* register must be even */
388                 if (reg < 0x80 && (reg & 1) == 0 && val <= 0xffff)
389                         snd_ac97_write_cache(ac97, reg, val);
390         }
391         mutex_unlock(&ac97->page_mutex);
392 }
393 #endif
394 
395 static void snd_ac97_proc_regs_read_main(struct snd_ac97 *ac97, struct snd_info_buffer *buffer, int subidx)
396 {
397         int reg, val;
398 
399         for (reg = 0; reg < 0x80; reg += 2) {
400                 val = snd_ac97_read(ac97, reg);
401                 snd_iprintf(buffer, "%i:%02x = %04x\n", subidx, reg, val);
402         }
403 }
404 
405 static void snd_ac97_proc_regs_read(struct snd_info_entry *entry, 
406                                     struct snd_info_buffer *buffer)
407 {
408         struct snd_ac97 *ac97 = entry->private_data;
409 
410         mutex_lock(&ac97->page_mutex);
411         if ((ac97->id & 0xffffff40) == AC97_ID_AD1881) {        // Analog Devices AD1881/85/86
412 
413                 int idx;
414                 for (idx = 0; idx < 3; idx++)
415                         if (ac97->spec.ad18xx.id[idx]) {
416                                 /* select single codec */
417                                 snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG, 0x7000,
418                                                      ac97->spec.ad18xx.unchained[idx] | ac97->spec.ad18xx.chained[idx]);
419                                 snd_ac97_proc_regs_read_main(ac97, buffer, idx);
420                         }
421                 /* select all codecs */
422                 snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG, 0x7000, 0x7000);
423         } else {
424                 snd_ac97_proc_regs_read_main(ac97, buffer, 0);
425         }       
426         mutex_unlock(&ac97->page_mutex);
427 }
428 
429 void snd_ac97_proc_init(struct snd_ac97 * ac97)
430 {
431         struct snd_info_entry *entry;
432         char name[32];
433         const char *prefix;
434 
435         if (ac97->bus->proc == NULL)
436                 return;
437         prefix = ac97_is_audio(ac97) ? "ac97" : "mc97";
438         sprintf(name, "%s#%d-%d", prefix, ac97->addr, ac97->num);
439         if ((entry = snd_info_create_card_entry(ac97->bus->card, name, ac97->bus->proc)) != NULL) {
440                 snd_info_set_text_ops(entry, ac97, snd_ac97_proc_read);
441                 if (snd_info_register(entry) < 0) {
442                         snd_info_free_entry(entry);
443                         entry = NULL;
444                 }
445         }
446         ac97->proc = entry;
447         sprintf(name, "%s#%d-%d+regs", prefix, ac97->addr, ac97->num);
448         if ((entry = snd_info_create_card_entry(ac97->bus->card, name, ac97->bus->proc)) != NULL) {
449                 snd_info_set_text_ops(entry, ac97, snd_ac97_proc_regs_read);
450 #ifdef CONFIG_SND_DEBUG
451                 entry->mode |= S_IWUSR;
452                 entry->c.text.write = snd_ac97_proc_regs_write;
453 #endif
454                 if (snd_info_register(entry) < 0) {
455                         snd_info_free_entry(entry);
456                         entry = NULL;
457                 }
458         }
459         ac97->proc_regs = entry;
460 }
461 
462 void snd_ac97_proc_done(struct snd_ac97 * ac97)
463 {
464         snd_info_free_entry(ac97->proc_regs);
465         ac97->proc_regs = NULL;
466         snd_info_free_entry(ac97->proc);
467         ac97->proc = NULL;
468 }
469 
470 void snd_ac97_bus_proc_init(struct snd_ac97_bus * bus)
471 {
472         struct snd_info_entry *entry;
473         char name[32];
474 
475         sprintf(name, "codec97#%d", bus->num);
476         if ((entry = snd_info_create_card_entry(bus->card, name, bus->card->proc_root)) != NULL) {
477                 entry->mode = S_IFDIR | S_IRUGO | S_IXUGO;
478                 if (snd_info_register(entry) < 0) {
479                         snd_info_free_entry(entry);
480                         entry = NULL;
481                 }
482         }
483         bus->proc = entry;
484 }
485 
486 void snd_ac97_bus_proc_done(struct snd_ac97_bus * bus)
487 {
488         snd_info_free_entry(bus->proc);
489         bus->proc = NULL;
490 }
491 

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