Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq
[linux-2.6] / sound / pci / hda / hda_proc.c
1 /*
2  * Universal Interface for Intel High Definition Audio Codec
3  * 
4  * Generic proc interface
5  *
6  * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
7  *
8  *
9  *  This driver 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 driver 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 #include <linux/init.h>
25 #include <sound/core.h>
26 #include "hda_codec.h"
27 #include "hda_local.h"
28
29 static const char *get_wid_type_name(unsigned int wid_value)
30 {
31         static char *names[16] = {
32                 [AC_WID_AUD_OUT] = "Audio Output",
33                 [AC_WID_AUD_IN] = "Audio Input",
34                 [AC_WID_AUD_MIX] = "Audio Mixer",
35                 [AC_WID_AUD_SEL] = "Audio Selector",
36                 [AC_WID_PIN] = "Pin Complex",
37                 [AC_WID_POWER] = "Power Widget",
38                 [AC_WID_VOL_KNB] = "Volume Knob Widget",
39                 [AC_WID_BEEP] = "Beep Generator Widget",
40                 [AC_WID_VENDOR] = "Vendor Defined Widget",
41         };
42         wid_value &= 0xf;
43         if (names[wid_value])
44                 return names[wid_value];
45         else
46                 return "UNKNOWN Widget";
47 }
48
49 static void print_amp_caps(struct snd_info_buffer *buffer,
50                            struct hda_codec *codec, hda_nid_t nid, int dir)
51 {
52         unsigned int caps;
53         caps = snd_hda_param_read(codec, nid,
54                                   dir == HDA_OUTPUT ?
55                                     AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP);
56         if (caps == -1 || caps == 0) {
57                 snd_iprintf(buffer, "N/A\n");
58                 return;
59         }
60         snd_iprintf(buffer, "ofs=0x%02x, nsteps=0x%02x, stepsize=0x%02x, "
61                     "mute=%x\n",
62                     caps & AC_AMPCAP_OFFSET,
63                     (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT,
64                     (caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT,
65                     (caps & AC_AMPCAP_MUTE) >> AC_AMPCAP_MUTE_SHIFT);
66 }
67
68 static void print_amp_vals(struct snd_info_buffer *buffer,
69                            struct hda_codec *codec, hda_nid_t nid,
70                            int dir, int stereo, int indices)
71 {
72         unsigned int val;
73         int i;
74
75         dir = dir == HDA_OUTPUT ? AC_AMP_GET_OUTPUT : AC_AMP_GET_INPUT;
76         for (i = 0; i < indices; i++) {
77                 snd_iprintf(buffer, " [");
78                 if (stereo) {
79                         val = snd_hda_codec_read(codec, nid, 0,
80                                                  AC_VERB_GET_AMP_GAIN_MUTE,
81                                                  AC_AMP_GET_LEFT | dir | i);
82                         snd_iprintf(buffer, "0x%02x ", val);
83                 }
84                 val = snd_hda_codec_read(codec, nid, 0,
85                                          AC_VERB_GET_AMP_GAIN_MUTE,
86                                          AC_AMP_GET_RIGHT | dir | i);
87                 snd_iprintf(buffer, "0x%02x]", val);
88         }
89         snd_iprintf(buffer, "\n");
90 }
91
92 static void print_pcm_rates(struct snd_info_buffer *buffer, unsigned int pcm)
93 {
94         static unsigned int rates[] = {
95                 8000, 11025, 16000, 22050, 32000, 44100, 48000, 88200,
96                 96000, 176400, 192000, 384000
97         };
98         int i;
99
100         pcm &= AC_SUPPCM_RATES;
101         snd_iprintf(buffer, "    rates [0x%x]:", pcm);
102         for (i = 0; i < ARRAY_SIZE(rates); i++) 
103                 if (pcm & (1 << i))
104                         snd_iprintf(buffer, " %d", rates[i]);
105         snd_iprintf(buffer, "\n");
106 }
107
108 static void print_pcm_bits(struct snd_info_buffer *buffer, unsigned int pcm)
109 {
110         static unsigned int bits[] = { 8, 16, 20, 24, 32 };
111         int i;
112
113         pcm = (pcm >> 16) & 0xff;
114         snd_iprintf(buffer, "    bits [0x%x]:", pcm);
115         for (i = 0; i < ARRAY_SIZE(bits); i++)
116                 if (pcm & (1 << i))
117                         snd_iprintf(buffer, " %d", bits[i]);
118         snd_iprintf(buffer, "\n");
119 }
120
121 static void print_pcm_formats(struct snd_info_buffer *buffer,
122                               unsigned int streams)
123 {
124         snd_iprintf(buffer, "    formats [0x%x]:", streams & 0xf);
125         if (streams & AC_SUPFMT_PCM)
126                 snd_iprintf(buffer, " PCM");
127         if (streams & AC_SUPFMT_FLOAT32)
128                 snd_iprintf(buffer, " FLOAT");
129         if (streams & AC_SUPFMT_AC3)
130                 snd_iprintf(buffer, " AC3");
131         snd_iprintf(buffer, "\n");
132 }
133
134 static void print_pcm_caps(struct snd_info_buffer *buffer,
135                            struct hda_codec *codec, hda_nid_t nid)
136 {
137         unsigned int pcm = snd_hda_param_read(codec, nid, AC_PAR_PCM);
138         unsigned int stream = snd_hda_param_read(codec, nid, AC_PAR_STREAM);
139         if (pcm == -1 || stream == -1) {
140                 snd_iprintf(buffer, "N/A\n");
141                 return;
142         }
143         print_pcm_rates(buffer, pcm);
144         print_pcm_bits(buffer, pcm);
145         print_pcm_formats(buffer, stream);
146 }
147
148 static const char *get_jack_location(u32 cfg)
149 {
150         static char *bases[7] = {
151                 "N/A", "Rear", "Front", "Left", "Right", "Top", "Bottom",
152         };
153         static unsigned char specials_idx[] = {
154                 0x07, 0x08,
155                 0x17, 0x18, 0x19,
156                 0x37, 0x38
157         };
158         static char *specials[] = {
159                 "Rear Panel", "Drive Bar",
160                 "Riser", "HDMI", "ATAPI",
161                 "Mobile-In", "Mobile-Out"
162         };
163         int i;
164         cfg = (cfg & AC_DEFCFG_LOCATION) >> AC_DEFCFG_LOCATION_SHIFT;
165         if ((cfg & 0x0f) < 7)
166                 return bases[cfg & 0x0f];
167         for (i = 0; i < ARRAY_SIZE(specials_idx); i++) {
168                 if (cfg == specials_idx[i])
169                         return specials[i];
170         }
171         return "UNKNOWN";
172 }
173
174 static const char *get_jack_connection(u32 cfg)
175 {
176         static char *names[16] = {
177                 "Unknown", "1/8", "1/4", "ATAPI",
178                 "RCA", "Optical","Digital", "Analog",
179                 "DIN", "XLR", "RJ11", "Comb",
180                 NULL, NULL, NULL, "Other"
181         };
182         cfg = (cfg & AC_DEFCFG_CONN_TYPE) >> AC_DEFCFG_CONN_TYPE_SHIFT;
183         if (names[cfg])
184                 return names[cfg];
185         else
186                 return "UNKNOWN";
187 }
188
189 static const char *get_jack_color(u32 cfg)
190 {
191         static char *names[16] = {
192                 "Unknown", "Black", "Grey", "Blue",
193                 "Green", "Red", "Orange", "Yellow",
194                 "Purple", "Pink", NULL, NULL,
195                 NULL, NULL, "White", "Other",
196         };
197         cfg = (cfg & AC_DEFCFG_COLOR) >> AC_DEFCFG_COLOR_SHIFT;
198         if (names[cfg])
199                 return names[cfg];
200         else
201                 return "UNKNOWN";
202 }
203
204 static void print_pin_caps(struct snd_info_buffer *buffer,
205                            struct hda_codec *codec, hda_nid_t nid,
206                            int *supports_vref)
207 {
208         static char *jack_conns[4] = { "Jack", "N/A", "Fixed", "Both" };
209         static char *jack_types[16] = {
210                 "Line Out", "Speaker", "HP Out", "CD",
211                 "SPDIF Out", "Digital Out", "Modem Line", "Modem Hand",
212                 "Line In", "Aux", "Mic", "Telephony",
213                 "SPDIF In", "Digitial In", "Reserved", "Other"
214         };
215         static char *jack_locations[4] = { "Ext", "Int", "Sep", "Oth" };
216         unsigned int caps, val;
217
218         caps = snd_hda_param_read(codec, nid, AC_PAR_PIN_CAP);
219         snd_iprintf(buffer, "  Pincap 0x08%x:", caps);
220         if (caps & AC_PINCAP_IN)
221                 snd_iprintf(buffer, " IN");
222         if (caps & AC_PINCAP_OUT)
223                 snd_iprintf(buffer, " OUT");
224         if (caps & AC_PINCAP_HP_DRV)
225                 snd_iprintf(buffer, " HP");
226         if (caps & AC_PINCAP_EAPD)
227                 snd_iprintf(buffer, " EAPD");
228         if (caps & AC_PINCAP_PRES_DETECT)
229                 snd_iprintf(buffer, " Detect");
230         if (caps & AC_PINCAP_BALANCE)
231                 snd_iprintf(buffer, " Balanced");
232         if (caps & AC_PINCAP_LR_SWAP)
233                 snd_iprintf(buffer, " R/L");
234         if (caps & AC_PINCAP_TRIG_REQ)
235                 snd_iprintf(buffer, " Trigger");
236         if (caps & AC_PINCAP_IMP_SENSE)
237                 snd_iprintf(buffer, " ImpSense");
238         snd_iprintf(buffer, "\n");
239         if (caps & AC_PINCAP_VREF) {
240                 unsigned int vref =
241                         (caps & AC_PINCAP_VREF) >> AC_PINCAP_VREF_SHIFT;
242                 snd_iprintf(buffer, "    Vref caps:");
243                 if (vref & AC_PINCAP_VREF_HIZ)
244                         snd_iprintf(buffer, " HIZ");
245                 if (vref & AC_PINCAP_VREF_50)
246                         snd_iprintf(buffer, " 50");
247                 if (vref & AC_PINCAP_VREF_GRD)
248                         snd_iprintf(buffer, " GRD");
249                 if (vref & AC_PINCAP_VREF_80)
250                         snd_iprintf(buffer, " 80");
251                 if (vref & AC_PINCAP_VREF_100)
252                         snd_iprintf(buffer, " 100");
253                 snd_iprintf(buffer, "\n");
254                 *supports_vref = 1;
255         } else
256                 *supports_vref = 0;
257         if (caps & AC_PINCAP_EAPD) {
258                 val = snd_hda_codec_read(codec, nid, 0,
259                                          AC_VERB_GET_EAPD_BTLENABLE, 0);
260                 snd_iprintf(buffer, "  EAPD 0x%x:", val);
261                 if (val & AC_EAPDBTL_BALANCED)
262                         snd_iprintf(buffer, " BALANCED");
263                 if (val & AC_EAPDBTL_EAPD)
264                         snd_iprintf(buffer, " EAPD");
265                 if (val & AC_EAPDBTL_LR_SWAP)
266                         snd_iprintf(buffer, " R/L");
267                 snd_iprintf(buffer, "\n");
268         }
269         caps = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONFIG_DEFAULT, 0);
270         snd_iprintf(buffer, "  Pin Default 0x%08x: [%s] %s at %s %s\n", caps,
271                     jack_conns[(caps & AC_DEFCFG_PORT_CONN) >> AC_DEFCFG_PORT_CONN_SHIFT],
272                     jack_types[(caps & AC_DEFCFG_DEVICE) >> AC_DEFCFG_DEVICE_SHIFT],
273                     jack_locations[(caps >> (AC_DEFCFG_LOCATION_SHIFT + 4)) & 3],
274                     get_jack_location(caps));
275         snd_iprintf(buffer, "    Conn = %s, Color = %s\n",
276                     get_jack_connection(caps),
277                     get_jack_color(caps));
278         /* Default association and sequence values refer to default grouping
279          * of pin complexes and their sequence within the group. This is used
280          * for priority and resource allocation.
281          */
282         snd_iprintf(buffer, "    DefAssociation = 0x%x, Sequence = 0x%x\n",
283                     (caps & AC_DEFCFG_DEF_ASSOC) >> AC_DEFCFG_ASSOC_SHIFT,
284                     caps & AC_DEFCFG_SEQUENCE);
285         if (((caps & AC_DEFCFG_MISC) >> AC_DEFCFG_MISC_SHIFT) &
286             AC_DEFCFG_MISC_NO_PRESENCE) {
287                 /* Miscellaneous bit indicates external hardware does not
288                  * support presence detection even if the pin complex
289                  * indicates it is supported.
290                  */
291                 snd_iprintf(buffer, "    Misc = NO_PRESENCE\n");
292         }
293 }
294
295 static void print_pin_ctls(struct snd_info_buffer *buffer,
296                            struct hda_codec *codec, hda_nid_t nid,
297                            int supports_vref)
298 {
299         unsigned int pinctls;
300
301         pinctls = snd_hda_codec_read(codec, nid, 0,
302                                      AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
303         snd_iprintf(buffer, "  Pin-ctls: 0x%02x:", pinctls);
304         if (pinctls & AC_PINCTL_IN_EN)
305                 snd_iprintf(buffer, " IN");
306         if (pinctls & AC_PINCTL_OUT_EN)
307                 snd_iprintf(buffer, " OUT");
308         if (pinctls & AC_PINCTL_HP_EN)
309                 snd_iprintf(buffer, " HP");
310         if (supports_vref) {
311                 int vref = pinctls & AC_PINCTL_VREFEN;
312                 switch (vref) {
313                 case AC_PINCTL_VREF_HIZ:
314                         snd_iprintf(buffer, " VREF_HIZ");
315                         break;
316                 case AC_PINCTL_VREF_50:
317                         snd_iprintf(buffer, " VREF_50");
318                         break;
319                 case AC_PINCTL_VREF_GRD:
320                         snd_iprintf(buffer, " VREF_GRD");
321                         break;
322                 case AC_PINCTL_VREF_80:
323                         snd_iprintf(buffer, " VREF_80");
324                         break;
325                 case AC_PINCTL_VREF_100:
326                         snd_iprintf(buffer, " VREF_100");
327                         break;
328                 }
329         }
330         snd_iprintf(buffer, "\n");
331 }
332
333 static void print_vol_knob(struct snd_info_buffer *buffer,
334                            struct hda_codec *codec, hda_nid_t nid)
335 {
336         unsigned int cap = snd_hda_param_read(codec, nid,
337                                               AC_PAR_VOL_KNB_CAP);
338         snd_iprintf(buffer, "  Volume-Knob: delta=%d, steps=%d, ",
339                     (cap >> 7) & 1, cap & 0x7f);
340         cap = snd_hda_codec_read(codec, nid, 0,
341                                  AC_VERB_GET_VOLUME_KNOB_CONTROL, 0);
342         snd_iprintf(buffer, "direct=%d, val=%d\n",
343                     (cap >> 7) & 1, cap & 0x7f);
344 }
345
346 static void print_audio_io(struct snd_info_buffer *buffer,
347                            struct hda_codec *codec, hda_nid_t nid,
348                            unsigned int wid_type)
349 {
350         int conv = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONV, 0);
351         snd_iprintf(buffer,
352                     "  Converter: stream=%d, channel=%d\n",
353                     (conv & AC_CONV_STREAM) >> AC_CONV_STREAM_SHIFT,
354                     conv & AC_CONV_CHANNEL);
355
356         if (wid_type == AC_WID_AUD_IN && (conv & AC_CONV_CHANNEL) == 0) {
357                 int sdi = snd_hda_codec_read(codec, nid, 0,
358                                              AC_VERB_GET_SDI_SELECT, 0);
359                 snd_iprintf(buffer, "  SDI-Select: %d\n",
360                             sdi & AC_SDI_SELECT);
361         }
362 }
363
364 static void print_digital_conv(struct snd_info_buffer *buffer,
365                                struct hda_codec *codec, hda_nid_t nid)
366 {
367         unsigned int digi1 = snd_hda_codec_read(codec, nid, 0,
368                                                 AC_VERB_GET_DIGI_CONVERT_1, 0);
369         unsigned int digi2 = snd_hda_codec_read(codec, nid, 0,
370                                                 AC_VERB_GET_DIGI_CONVERT_2, 0);
371         snd_iprintf(buffer, "  Digital:");
372         if (digi1 & AC_DIG1_ENABLE)
373                 snd_iprintf(buffer, " Enabled");
374         if (digi1 & AC_DIG1_V)
375                 snd_iprintf(buffer, " Validity");
376         if (digi1 & AC_DIG1_VCFG)
377                 snd_iprintf(buffer, " ValidityCfg");
378         if (digi1 & AC_DIG1_EMPHASIS)
379                 snd_iprintf(buffer, " Preemphasis");
380         if (digi1 & AC_DIG1_COPYRIGHT)
381                 snd_iprintf(buffer, " Copyright");
382         if (digi1 & AC_DIG1_NONAUDIO)
383                 snd_iprintf(buffer, " Non-Audio");
384         if (digi1 & AC_DIG1_PROFESSIONAL)
385                 snd_iprintf(buffer, " Pro");
386         if (digi1 & AC_DIG1_LEVEL)
387                 snd_iprintf(buffer, " GenLevel");
388         snd_iprintf(buffer, "\n");
389         snd_iprintf(buffer, "  Digital category: 0x%x\n", digi2 & AC_DIG2_CC);
390 }
391
392 static const char *get_pwr_state(u32 state)
393 {
394         static const char *buf[4] = {
395                 "D0", "D1", "D2", "D3"
396         };
397         if (state < 4)
398                 return buf[state];
399         return "UNKNOWN";
400 }
401
402 static void print_power_state(struct snd_info_buffer *buffer,
403                               struct hda_codec *codec, hda_nid_t nid)
404 {
405         int pwr = snd_hda_codec_read(codec, nid, 0,
406                                      AC_VERB_GET_POWER_STATE, 0);
407         snd_iprintf(buffer, "  Power: setting=%s, actual=%s\n",
408                     get_pwr_state(pwr & AC_PWRST_SETTING),
409                     get_pwr_state((pwr & AC_PWRST_ACTUAL) >>
410                                   AC_PWRST_ACTUAL_SHIFT));
411 }
412
413 static void print_unsol_cap(struct snd_info_buffer *buffer,
414                               struct hda_codec *codec, hda_nid_t nid)
415 {
416         int unsol = snd_hda_codec_read(codec, nid, 0,
417                                        AC_VERB_GET_UNSOLICITED_RESPONSE, 0);
418         snd_iprintf(buffer,
419                     "  Unsolicited: tag=%02x, enabled=%d\n",
420                     unsol & AC_UNSOL_TAG,
421                     (unsol & AC_UNSOL_ENABLED) ? 1 : 0);
422 }
423
424 static void print_proc_caps(struct snd_info_buffer *buffer,
425                             struct hda_codec *codec, hda_nid_t nid)
426 {
427         unsigned int proc_caps = snd_hda_param_read(codec, nid,
428                                                     AC_PAR_PROC_CAP);
429         snd_iprintf(buffer, "  Processing caps: benign=%d, ncoeff=%d\n",
430                     proc_caps & AC_PCAP_BENIGN,
431                     (proc_caps & AC_PCAP_NUM_COEF) >> AC_PCAP_NUM_COEF_SHIFT);
432 }
433
434 static void print_conn_list(struct snd_info_buffer *buffer,
435                             struct hda_codec *codec, hda_nid_t nid,
436                             unsigned int wid_type, hda_nid_t *conn,
437                             int conn_len)
438 {
439         int c, curr = -1;
440
441         if (conn_len > 1 && wid_type != AC_WID_AUD_MIX)
442                 curr = snd_hda_codec_read(codec, nid, 0,
443                                           AC_VERB_GET_CONNECT_SEL, 0);
444         snd_iprintf(buffer, "  Connection: %d\n", conn_len);
445         if (conn_len > 0) {
446                 snd_iprintf(buffer, "    ");
447                 for (c = 0; c < conn_len; c++) {
448                         snd_iprintf(buffer, " 0x%02x", conn[c]);
449                         if (c == curr)
450                                 snd_iprintf(buffer, "*");
451                 }
452                 snd_iprintf(buffer, "\n");
453         }
454 }
455
456 static void print_realtek_coef(struct snd_info_buffer *buffer,
457                                struct hda_codec *codec, hda_nid_t nid)
458 {
459         int coeff = snd_hda_codec_read(codec, nid, 0,
460                                        AC_VERB_GET_PROC_COEF, 0);
461         snd_iprintf(buffer, "  Processing Coefficient: 0x%02x\n", coeff);
462         coeff = snd_hda_codec_read(codec, nid, 0,
463                                    AC_VERB_GET_COEF_INDEX, 0);
464         snd_iprintf(buffer, "  Coefficient Index: 0x%02x\n", coeff);
465 }
466
467 static void print_gpio(struct snd_info_buffer *buffer,
468                        struct hda_codec *codec, hda_nid_t nid)
469 {
470         unsigned int gpio =
471                 snd_hda_param_read(codec, codec->afg, AC_PAR_GPIO_CAP);
472         unsigned int enable, direction, wake, unsol, sticky, data;
473         int i, max;
474         snd_iprintf(buffer, "GPIO: io=%d, o=%d, i=%d, "
475                     "unsolicited=%d, wake=%d\n",
476                     gpio & AC_GPIO_IO_COUNT,
477                     (gpio & AC_GPIO_O_COUNT) >> AC_GPIO_O_COUNT_SHIFT,
478                     (gpio & AC_GPIO_I_COUNT) >> AC_GPIO_I_COUNT_SHIFT,
479                     (gpio & AC_GPIO_UNSOLICITED) ? 1 : 0,
480                     (gpio & AC_GPIO_WAKE) ? 1 : 0);
481         max = gpio & AC_GPIO_IO_COUNT;
482         enable = snd_hda_codec_read(codec, nid, 0,
483                                     AC_VERB_GET_GPIO_MASK, 0);
484         direction = snd_hda_codec_read(codec, nid, 0,
485                                        AC_VERB_GET_GPIO_DIRECTION, 0);
486         wake = snd_hda_codec_read(codec, nid, 0,
487                                   AC_VERB_GET_GPIO_WAKE_MASK, 0);
488         unsol  = snd_hda_codec_read(codec, nid, 0,
489                                     AC_VERB_GET_GPIO_UNSOLICITED_RSP_MASK, 0);
490         sticky = snd_hda_codec_read(codec, nid, 0,
491                                     AC_VERB_GET_GPIO_STICKY_MASK, 0);
492         data = snd_hda_codec_read(codec, nid, 0,
493                                   AC_VERB_GET_GPIO_DATA, 0);
494         for (i = 0; i < max; ++i)
495                 snd_iprintf(buffer,
496                             "  IO[%d]: enable=%d, dir=%d, wake=%d, "
497                             "sticky=%d, data=%d\n", i,
498                             (enable & (1<<i)) ? 1 : 0,
499                             (direction & (1<<i)) ? 1 : 0,
500                             (wake & (1<<i)) ? 1 : 0,
501                             (sticky & (1<<i)) ? 1 : 0,
502                             (data & (1<<i)) ? 1 : 0);
503         /* FIXME: add GPO and GPI pin information */
504 }
505
506 static void print_codec_info(struct snd_info_entry *entry,
507                              struct snd_info_buffer *buffer)
508 {
509         struct hda_codec *codec = entry->private_data;
510         char buf[32];
511         hda_nid_t nid;
512         int i, nodes;
513
514         snd_hda_get_codec_name(codec, buf, sizeof(buf));
515         snd_iprintf(buffer, "Codec: %s\n", buf);
516         snd_iprintf(buffer, "Address: %d\n", codec->addr);
517         snd_iprintf(buffer, "Vendor Id: 0x%x\n", codec->vendor_id);
518         snd_iprintf(buffer, "Subsystem Id: 0x%x\n", codec->subsystem_id);
519         snd_iprintf(buffer, "Revision Id: 0x%x\n", codec->revision_id);
520
521         if (codec->mfg)
522                 snd_iprintf(buffer, "Modem Function Group: 0x%x\n", codec->mfg);
523         else
524                 snd_iprintf(buffer, "No Modem Function Group found\n");
525
526         if (! codec->afg)
527                 return;
528         snd_hda_power_up(codec);
529         snd_iprintf(buffer, "Default PCM:\n");
530         print_pcm_caps(buffer, codec, codec->afg);
531         snd_iprintf(buffer, "Default Amp-In caps: ");
532         print_amp_caps(buffer, codec, codec->afg, HDA_INPUT);
533         snd_iprintf(buffer, "Default Amp-Out caps: ");
534         print_amp_caps(buffer, codec, codec->afg, HDA_OUTPUT);
535
536         nodes = snd_hda_get_sub_nodes(codec, codec->afg, &nid);
537         if (! nid || nodes < 0) {
538                 snd_iprintf(buffer, "Invalid AFG subtree\n");
539                 snd_hda_power_down(codec);
540                 return;
541         }
542
543         print_gpio(buffer, codec, codec->afg);
544
545         for (i = 0; i < nodes; i++, nid++) {
546                 unsigned int wid_caps =
547                         snd_hda_param_read(codec, nid,
548                                            AC_PAR_AUDIO_WIDGET_CAP);
549                 unsigned int wid_type =
550                         (wid_caps & AC_WCAP_TYPE) >> AC_WCAP_TYPE_SHIFT;
551                 hda_nid_t conn[HDA_MAX_CONNECTIONS];
552                 int conn_len = 0;
553
554                 snd_iprintf(buffer, "Node 0x%02x [%s] wcaps 0x%x:", nid,
555                             get_wid_type_name(wid_type), wid_caps);
556                 if (wid_caps & AC_WCAP_STEREO)
557                         snd_iprintf(buffer, " Stereo");
558                 else
559                         snd_iprintf(buffer, " Mono");
560                 if (wid_caps & AC_WCAP_DIGITAL)
561                         snd_iprintf(buffer, " Digital");
562                 if (wid_caps & AC_WCAP_IN_AMP)
563                         snd_iprintf(buffer, " Amp-In");
564                 if (wid_caps & AC_WCAP_OUT_AMP)
565                         snd_iprintf(buffer, " Amp-Out");
566                 if (wid_caps & AC_WCAP_STRIPE)
567                         snd_iprintf(buffer, " Stripe");
568                 if (wid_caps & AC_WCAP_LR_SWAP)
569                         snd_iprintf(buffer, " R/L");
570                 snd_iprintf(buffer, "\n");
571
572                 /* volume knob is a special widget that always have connection
573                  * list
574                  */
575                 if (wid_type == AC_WID_VOL_KNB)
576                         wid_caps |= AC_WCAP_CONN_LIST;
577
578                 if (wid_caps & AC_WCAP_CONN_LIST)
579                         conn_len = snd_hda_get_connections(codec, nid, conn,
580                                                            HDA_MAX_CONNECTIONS);
581
582                 if (wid_caps & AC_WCAP_IN_AMP) {
583                         snd_iprintf(buffer, "  Amp-In caps: ");
584                         print_amp_caps(buffer, codec, nid, HDA_INPUT);
585                         snd_iprintf(buffer, "  Amp-In vals: ");
586                         print_amp_vals(buffer, codec, nid, HDA_INPUT,
587                                        wid_caps & AC_WCAP_STEREO,
588                                        wid_type == AC_WID_PIN ? 1 : conn_len);
589                 }
590                 if (wid_caps & AC_WCAP_OUT_AMP) {
591                         snd_iprintf(buffer, "  Amp-Out caps: ");
592                         print_amp_caps(buffer, codec, nid, HDA_OUTPUT);
593                         snd_iprintf(buffer, "  Amp-Out vals: ");
594                         print_amp_vals(buffer, codec, nid, HDA_OUTPUT,
595                                        wid_caps & AC_WCAP_STEREO, 1);
596                 }
597
598                 switch (wid_type) {
599                 case AC_WID_PIN: {
600                         int supports_vref;
601                         print_pin_caps(buffer, codec, nid, &supports_vref);
602                         print_pin_ctls(buffer, codec, nid, supports_vref);
603                         break;
604                 }
605                 case AC_WID_VOL_KNB:
606                         print_vol_knob(buffer, codec, nid);
607                         break;
608                 case AC_WID_AUD_OUT:
609                 case AC_WID_AUD_IN:
610                         print_audio_io(buffer, codec, nid, wid_type);
611                         if (wid_caps & AC_WCAP_DIGITAL)
612                                 print_digital_conv(buffer, codec, nid);
613                         if (wid_caps & AC_WCAP_FORMAT_OVRD) {
614                                 snd_iprintf(buffer, "  PCM:\n");
615                                 print_pcm_caps(buffer, codec, nid);
616                         }
617                         break;
618                 }
619
620                 if (wid_caps & AC_WCAP_UNSOL_CAP)
621                         print_unsol_cap(buffer, codec, nid);
622
623                 if (wid_caps & AC_WCAP_POWER)
624                         print_power_state(buffer, codec, nid);
625
626                 if (wid_caps & AC_WCAP_DELAY)
627                         snd_iprintf(buffer, "  Delay: %d samples\n",
628                                     (wid_caps & AC_WCAP_DELAY) >>
629                                     AC_WCAP_DELAY_SHIFT);
630
631                 if (wid_caps & AC_WCAP_CONN_LIST)
632                         print_conn_list(buffer, codec, nid, wid_type,
633                                         conn, conn_len);
634
635                 if (wid_caps & AC_WCAP_PROC_WID)
636                         print_proc_caps(buffer, codec, nid);
637
638                 /* NID 0x20 == Realtek Define Registers */
639                 if (codec->vendor_id == 0x10ec && nid == 0x20)
640                         print_realtek_coef(buffer, codec, nid);
641         }
642         snd_hda_power_down(codec);
643 }
644
645 /*
646  * create a proc read
647  */
648 int snd_hda_codec_proc_new(struct hda_codec *codec)
649 {
650         char name[32];
651         struct snd_info_entry *entry;
652         int err;
653
654         snprintf(name, sizeof(name), "codec#%d", codec->addr);
655         err = snd_card_proc_new(codec->bus->card, name, &entry);
656         if (err < 0)
657                 return err;
658
659         snd_info_set_text_ops(entry, codec, print_codec_info);
660         return 0;
661 }
662