ALSA: hda - print a few HDMI information in proc
[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_HDMI) {
233                 /* Realtek uses this bit as a different meaning */
234                 if ((codec->vendor_id >> 16) == 0x10ec)
235                         snd_iprintf(buffer, " R/L");
236                 else
237                         snd_iprintf(buffer, " HDMI");
238         }
239         if (caps & AC_PINCAP_TRIG_REQ)
240                 snd_iprintf(buffer, " Trigger");
241         if (caps & AC_PINCAP_IMP_SENSE)
242                 snd_iprintf(buffer, " ImpSense");
243         snd_iprintf(buffer, "\n");
244         if (caps & AC_PINCAP_VREF) {
245                 unsigned int vref =
246                         (caps & AC_PINCAP_VREF) >> AC_PINCAP_VREF_SHIFT;
247                 snd_iprintf(buffer, "    Vref caps:");
248                 if (vref & AC_PINCAP_VREF_HIZ)
249                         snd_iprintf(buffer, " HIZ");
250                 if (vref & AC_PINCAP_VREF_50)
251                         snd_iprintf(buffer, " 50");
252                 if (vref & AC_PINCAP_VREF_GRD)
253                         snd_iprintf(buffer, " GRD");
254                 if (vref & AC_PINCAP_VREF_80)
255                         snd_iprintf(buffer, " 80");
256                 if (vref & AC_PINCAP_VREF_100)
257                         snd_iprintf(buffer, " 100");
258                 snd_iprintf(buffer, "\n");
259                 *supports_vref = 1;
260         } else
261                 *supports_vref = 0;
262         if (caps & AC_PINCAP_EAPD) {
263                 val = snd_hda_codec_read(codec, nid, 0,
264                                          AC_VERB_GET_EAPD_BTLENABLE, 0);
265                 snd_iprintf(buffer, "  EAPD 0x%x:", val);
266                 if (val & AC_EAPDBTL_BALANCED)
267                         snd_iprintf(buffer, " BALANCED");
268                 if (val & AC_EAPDBTL_EAPD)
269                         snd_iprintf(buffer, " EAPD");
270                 if (val & AC_EAPDBTL_LR_SWAP)
271                         snd_iprintf(buffer, " R/L");
272                 snd_iprintf(buffer, "\n");
273         }
274         caps = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONFIG_DEFAULT, 0);
275         snd_iprintf(buffer, "  Pin Default 0x%08x: [%s] %s at %s %s\n", caps,
276                     jack_conns[(caps & AC_DEFCFG_PORT_CONN) >> AC_DEFCFG_PORT_CONN_SHIFT],
277                     jack_types[(caps & AC_DEFCFG_DEVICE) >> AC_DEFCFG_DEVICE_SHIFT],
278                     jack_locations[(caps >> (AC_DEFCFG_LOCATION_SHIFT + 4)) & 3],
279                     get_jack_location(caps));
280         snd_iprintf(buffer, "    Conn = %s, Color = %s\n",
281                     get_jack_connection(caps),
282                     get_jack_color(caps));
283         /* Default association and sequence values refer to default grouping
284          * of pin complexes and their sequence within the group. This is used
285          * for priority and resource allocation.
286          */
287         snd_iprintf(buffer, "    DefAssociation = 0x%x, Sequence = 0x%x\n",
288                     (caps & AC_DEFCFG_DEF_ASSOC) >> AC_DEFCFG_ASSOC_SHIFT,
289                     caps & AC_DEFCFG_SEQUENCE);
290         if (((caps & AC_DEFCFG_MISC) >> AC_DEFCFG_MISC_SHIFT) &
291             AC_DEFCFG_MISC_NO_PRESENCE) {
292                 /* Miscellaneous bit indicates external hardware does not
293                  * support presence detection even if the pin complex
294                  * indicates it is supported.
295                  */
296                 snd_iprintf(buffer, "    Misc = NO_PRESENCE\n");
297         }
298 }
299
300 static void print_pin_ctls(struct snd_info_buffer *buffer,
301                            struct hda_codec *codec, hda_nid_t nid,
302                            int supports_vref)
303 {
304         unsigned int pinctls;
305
306         pinctls = snd_hda_codec_read(codec, nid, 0,
307                                      AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
308         snd_iprintf(buffer, "  Pin-ctls: 0x%02x:", pinctls);
309         if (pinctls & AC_PINCTL_IN_EN)
310                 snd_iprintf(buffer, " IN");
311         if (pinctls & AC_PINCTL_OUT_EN)
312                 snd_iprintf(buffer, " OUT");
313         if (pinctls & AC_PINCTL_HP_EN)
314                 snd_iprintf(buffer, " HP");
315         if (supports_vref) {
316                 int vref = pinctls & AC_PINCTL_VREFEN;
317                 switch (vref) {
318                 case AC_PINCTL_VREF_HIZ:
319                         snd_iprintf(buffer, " VREF_HIZ");
320                         break;
321                 case AC_PINCTL_VREF_50:
322                         snd_iprintf(buffer, " VREF_50");
323                         break;
324                 case AC_PINCTL_VREF_GRD:
325                         snd_iprintf(buffer, " VREF_GRD");
326                         break;
327                 case AC_PINCTL_VREF_80:
328                         snd_iprintf(buffer, " VREF_80");
329                         break;
330                 case AC_PINCTL_VREF_100:
331                         snd_iprintf(buffer, " VREF_100");
332                         break;
333                 }
334         }
335         snd_iprintf(buffer, "\n");
336 }
337
338 static void print_vol_knob(struct snd_info_buffer *buffer,
339                            struct hda_codec *codec, hda_nid_t nid)
340 {
341         unsigned int cap = snd_hda_param_read(codec, nid,
342                                               AC_PAR_VOL_KNB_CAP);
343         snd_iprintf(buffer, "  Volume-Knob: delta=%d, steps=%d, ",
344                     (cap >> 7) & 1, cap & 0x7f);
345         cap = snd_hda_codec_read(codec, nid, 0,
346                                  AC_VERB_GET_VOLUME_KNOB_CONTROL, 0);
347         snd_iprintf(buffer, "direct=%d, val=%d\n",
348                     (cap >> 7) & 1, cap & 0x7f);
349 }
350
351 static void print_audio_io(struct snd_info_buffer *buffer,
352                            struct hda_codec *codec, hda_nid_t nid,
353                            unsigned int wid_type)
354 {
355         int conv = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONV, 0);
356         snd_iprintf(buffer,
357                     "  Converter: stream=%d, channel=%d\n",
358                     (conv & AC_CONV_STREAM) >> AC_CONV_STREAM_SHIFT,
359                     conv & AC_CONV_CHANNEL);
360
361         if (wid_type == AC_WID_AUD_IN && (conv & AC_CONV_CHANNEL) == 0) {
362                 int sdi = snd_hda_codec_read(codec, nid, 0,
363                                              AC_VERB_GET_SDI_SELECT, 0);
364                 snd_iprintf(buffer, "  SDI-Select: %d\n",
365                             sdi & AC_SDI_SELECT);
366         }
367 }
368
369 static void print_digital_conv(struct snd_info_buffer *buffer,
370                                struct hda_codec *codec, hda_nid_t nid)
371 {
372         unsigned int digi1 = snd_hda_codec_read(codec, nid, 0,
373                                                 AC_VERB_GET_DIGI_CONVERT_1, 0);
374         snd_iprintf(buffer, "  Digital:");
375         if (digi1 & AC_DIG1_ENABLE)
376                 snd_iprintf(buffer, " Enabled");
377         if (digi1 & AC_DIG1_V)
378                 snd_iprintf(buffer, " Validity");
379         if (digi1 & AC_DIG1_VCFG)
380                 snd_iprintf(buffer, " ValidityCfg");
381         if (digi1 & AC_DIG1_EMPHASIS)
382                 snd_iprintf(buffer, " Preemphasis");
383         if (digi1 & AC_DIG1_COPYRIGHT)
384                 snd_iprintf(buffer, " Copyright");
385         if (digi1 & AC_DIG1_NONAUDIO)
386                 snd_iprintf(buffer, " Non-Audio");
387         if (digi1 & AC_DIG1_PROFESSIONAL)
388                 snd_iprintf(buffer, " Pro");
389         if (digi1 & AC_DIG1_LEVEL)
390                 snd_iprintf(buffer, " GenLevel");
391         snd_iprintf(buffer, "\n");
392         snd_iprintf(buffer, "  Digital category: 0x%x\n",
393                     (digi1 >> 8) & AC_DIG2_CC);
394 }
395
396 static const char *get_pwr_state(u32 state)
397 {
398         static const char *buf[4] = {
399                 "D0", "D1", "D2", "D3"
400         };
401         if (state < 4)
402                 return buf[state];
403         return "UNKNOWN";
404 }
405
406 static void print_power_state(struct snd_info_buffer *buffer,
407                               struct hda_codec *codec, hda_nid_t nid)
408 {
409         int pwr = snd_hda_codec_read(codec, nid, 0,
410                                      AC_VERB_GET_POWER_STATE, 0);
411         snd_iprintf(buffer, "  Power: setting=%s, actual=%s\n",
412                     get_pwr_state(pwr & AC_PWRST_SETTING),
413                     get_pwr_state((pwr & AC_PWRST_ACTUAL) >>
414                                   AC_PWRST_ACTUAL_SHIFT));
415 }
416
417 static void print_unsol_cap(struct snd_info_buffer *buffer,
418                               struct hda_codec *codec, hda_nid_t nid)
419 {
420         int unsol = snd_hda_codec_read(codec, nid, 0,
421                                        AC_VERB_GET_UNSOLICITED_RESPONSE, 0);
422         snd_iprintf(buffer,
423                     "  Unsolicited: tag=%02x, enabled=%d\n",
424                     unsol & AC_UNSOL_TAG,
425                     (unsol & AC_UNSOL_ENABLED) ? 1 : 0);
426 }
427
428 static void print_proc_caps(struct snd_info_buffer *buffer,
429                             struct hda_codec *codec, hda_nid_t nid)
430 {
431         unsigned int proc_caps = snd_hda_param_read(codec, nid,
432                                                     AC_PAR_PROC_CAP);
433         snd_iprintf(buffer, "  Processing caps: benign=%d, ncoeff=%d\n",
434                     proc_caps & AC_PCAP_BENIGN,
435                     (proc_caps & AC_PCAP_NUM_COEF) >> AC_PCAP_NUM_COEF_SHIFT);
436 }
437
438 static void print_conn_list(struct snd_info_buffer *buffer,
439                             struct hda_codec *codec, hda_nid_t nid,
440                             unsigned int wid_type, hda_nid_t *conn,
441                             int conn_len)
442 {
443         int c, curr = -1;
444
445         if (conn_len > 1 && wid_type != AC_WID_AUD_MIX)
446                 curr = snd_hda_codec_read(codec, nid, 0,
447                                           AC_VERB_GET_CONNECT_SEL, 0);
448         snd_iprintf(buffer, "  Connection: %d\n", conn_len);
449         if (conn_len > 0) {
450                 snd_iprintf(buffer, "    ");
451                 for (c = 0; c < conn_len; c++) {
452                         snd_iprintf(buffer, " 0x%02x", conn[c]);
453                         if (c == curr)
454                                 snd_iprintf(buffer, "*");
455                 }
456                 snd_iprintf(buffer, "\n");
457         }
458 }
459
460 static void print_realtek_coef(struct snd_info_buffer *buffer,
461                                struct hda_codec *codec, hda_nid_t nid)
462 {
463         int coeff = snd_hda_codec_read(codec, nid, 0,
464                                        AC_VERB_GET_PROC_COEF, 0);
465         snd_iprintf(buffer, "  Processing Coefficient: 0x%02x\n", coeff);
466         coeff = snd_hda_codec_read(codec, nid, 0,
467                                    AC_VERB_GET_COEF_INDEX, 0);
468         snd_iprintf(buffer, "  Coefficient Index: 0x%02x\n", coeff);
469 }
470
471 static void print_gpio(struct snd_info_buffer *buffer,
472                        struct hda_codec *codec, hda_nid_t nid)
473 {
474         unsigned int gpio =
475                 snd_hda_param_read(codec, codec->afg, AC_PAR_GPIO_CAP);
476         unsigned int enable, direction, wake, unsol, sticky, data;
477         int i, max;
478         snd_iprintf(buffer, "GPIO: io=%d, o=%d, i=%d, "
479                     "unsolicited=%d, wake=%d\n",
480                     gpio & AC_GPIO_IO_COUNT,
481                     (gpio & AC_GPIO_O_COUNT) >> AC_GPIO_O_COUNT_SHIFT,
482                     (gpio & AC_GPIO_I_COUNT) >> AC_GPIO_I_COUNT_SHIFT,
483                     (gpio & AC_GPIO_UNSOLICITED) ? 1 : 0,
484                     (gpio & AC_GPIO_WAKE) ? 1 : 0);
485         max = gpio & AC_GPIO_IO_COUNT;
486         enable = snd_hda_codec_read(codec, nid, 0,
487                                     AC_VERB_GET_GPIO_MASK, 0);
488         direction = snd_hda_codec_read(codec, nid, 0,
489                                        AC_VERB_GET_GPIO_DIRECTION, 0);
490         wake = snd_hda_codec_read(codec, nid, 0,
491                                   AC_VERB_GET_GPIO_WAKE_MASK, 0);
492         unsol  = snd_hda_codec_read(codec, nid, 0,
493                                     AC_VERB_GET_GPIO_UNSOLICITED_RSP_MASK, 0);
494         sticky = snd_hda_codec_read(codec, nid, 0,
495                                     AC_VERB_GET_GPIO_STICKY_MASK, 0);
496         data = snd_hda_codec_read(codec, nid, 0,
497                                   AC_VERB_GET_GPIO_DATA, 0);
498         for (i = 0; i < max; ++i)
499                 snd_iprintf(buffer,
500                             "  IO[%d]: enable=%d, dir=%d, wake=%d, "
501                             "sticky=%d, data=%d\n", i,
502                             (enable & (1<<i)) ? 1 : 0,
503                             (direction & (1<<i)) ? 1 : 0,
504                             (wake & (1<<i)) ? 1 : 0,
505                             (sticky & (1<<i)) ? 1 : 0,
506                             (data & (1<<i)) ? 1 : 0);
507         /* FIXME: add GPO and GPI pin information */
508 }
509
510 static void print_codec_info(struct snd_info_entry *entry,
511                              struct snd_info_buffer *buffer)
512 {
513         struct hda_codec *codec = entry->private_data;
514         char buf[32];
515         hda_nid_t nid;
516         int i, nodes;
517
518         snd_hda_get_codec_name(codec, buf, sizeof(buf));
519         snd_iprintf(buffer, "Codec: %s\n", buf);
520         snd_iprintf(buffer, "Address: %d\n", codec->addr);
521         snd_iprintf(buffer, "Vendor Id: 0x%x\n", codec->vendor_id);
522         snd_iprintf(buffer, "Subsystem Id: 0x%x\n", codec->subsystem_id);
523         snd_iprintf(buffer, "Revision Id: 0x%x\n", codec->revision_id);
524
525         if (codec->mfg)
526                 snd_iprintf(buffer, "Modem Function Group: 0x%x\n", codec->mfg);
527         else
528                 snd_iprintf(buffer, "No Modem Function Group found\n");
529
530         if (! codec->afg)
531                 return;
532         snd_hda_power_up(codec);
533         snd_iprintf(buffer, "Default PCM:\n");
534         print_pcm_caps(buffer, codec, codec->afg);
535         snd_iprintf(buffer, "Default Amp-In caps: ");
536         print_amp_caps(buffer, codec, codec->afg, HDA_INPUT);
537         snd_iprintf(buffer, "Default Amp-Out caps: ");
538         print_amp_caps(buffer, codec, codec->afg, HDA_OUTPUT);
539
540         nodes = snd_hda_get_sub_nodes(codec, codec->afg, &nid);
541         if (! nid || nodes < 0) {
542                 snd_iprintf(buffer, "Invalid AFG subtree\n");
543                 snd_hda_power_down(codec);
544                 return;
545         }
546
547         print_gpio(buffer, codec, codec->afg);
548
549         for (i = 0; i < nodes; i++, nid++) {
550                 unsigned int wid_caps =
551                         snd_hda_param_read(codec, nid,
552                                            AC_PAR_AUDIO_WIDGET_CAP);
553                 unsigned int wid_type =
554                         (wid_caps & AC_WCAP_TYPE) >> AC_WCAP_TYPE_SHIFT;
555                 hda_nid_t conn[HDA_MAX_CONNECTIONS];
556                 int conn_len = 0;
557
558                 snd_iprintf(buffer, "Node 0x%02x [%s] wcaps 0x%x:", nid,
559                             get_wid_type_name(wid_type), wid_caps);
560                 if (wid_caps & AC_WCAP_STEREO) {
561                         unsigned int chans;
562                         chans = (wid_caps & AC_WCAP_CHAN_CNT_EXT) >> 13;
563                         chans = ((chans << 1) | 1) + 1;
564                         if (chans == 2)
565                                 snd_iprintf(buffer, " Stereo");
566                         else
567                                 snd_iprintf(buffer, " %d-Channels", chans);
568                 } else
569                         snd_iprintf(buffer, " Mono");
570                 if (wid_caps & AC_WCAP_DIGITAL)
571                         snd_iprintf(buffer, " Digital");
572                 if (wid_caps & AC_WCAP_IN_AMP)
573                         snd_iprintf(buffer, " Amp-In");
574                 if (wid_caps & AC_WCAP_OUT_AMP)
575                         snd_iprintf(buffer, " Amp-Out");
576                 if (wid_caps & AC_WCAP_STRIPE)
577                         snd_iprintf(buffer, " Stripe");
578                 if (wid_caps & AC_WCAP_LR_SWAP)
579                         snd_iprintf(buffer, " R/L");
580                 if (wid_caps & AC_WCAP_CP_CAPS)
581                         snd_iprintf(buffer, " CP");
582                 snd_iprintf(buffer, "\n");
583
584                 /* volume knob is a special widget that always have connection
585                  * list
586                  */
587                 if (wid_type == AC_WID_VOL_KNB)
588                         wid_caps |= AC_WCAP_CONN_LIST;
589
590                 if (wid_caps & AC_WCAP_CONN_LIST)
591                         conn_len = snd_hda_get_connections(codec, nid, conn,
592                                                            HDA_MAX_CONNECTIONS);
593
594                 if (wid_caps & AC_WCAP_IN_AMP) {
595                         snd_iprintf(buffer, "  Amp-In caps: ");
596                         print_amp_caps(buffer, codec, nid, HDA_INPUT);
597                         snd_iprintf(buffer, "  Amp-In vals: ");
598                         print_amp_vals(buffer, codec, nid, HDA_INPUT,
599                                        wid_caps & AC_WCAP_STEREO,
600                                        wid_type == AC_WID_PIN ? 1 : conn_len);
601                 }
602                 if (wid_caps & AC_WCAP_OUT_AMP) {
603                         snd_iprintf(buffer, "  Amp-Out caps: ");
604                         print_amp_caps(buffer, codec, nid, HDA_OUTPUT);
605                         snd_iprintf(buffer, "  Amp-Out vals: ");
606                         print_amp_vals(buffer, codec, nid, HDA_OUTPUT,
607                                        wid_caps & AC_WCAP_STEREO, 1);
608                 }
609
610                 switch (wid_type) {
611                 case AC_WID_PIN: {
612                         int supports_vref;
613                         print_pin_caps(buffer, codec, nid, &supports_vref);
614                         print_pin_ctls(buffer, codec, nid, supports_vref);
615                         break;
616                 }
617                 case AC_WID_VOL_KNB:
618                         print_vol_knob(buffer, codec, nid);
619                         break;
620                 case AC_WID_AUD_OUT:
621                 case AC_WID_AUD_IN:
622                         print_audio_io(buffer, codec, nid, wid_type);
623                         if (wid_caps & AC_WCAP_DIGITAL)
624                                 print_digital_conv(buffer, codec, nid);
625                         if (wid_caps & AC_WCAP_FORMAT_OVRD) {
626                                 snd_iprintf(buffer, "  PCM:\n");
627                                 print_pcm_caps(buffer, codec, nid);
628                         }
629                         break;
630                 }
631
632                 if (wid_caps & AC_WCAP_UNSOL_CAP)
633                         print_unsol_cap(buffer, codec, nid);
634
635                 if (wid_caps & AC_WCAP_POWER)
636                         print_power_state(buffer, codec, nid);
637
638                 if (wid_caps & AC_WCAP_DELAY)
639                         snd_iprintf(buffer, "  Delay: %d samples\n",
640                                     (wid_caps & AC_WCAP_DELAY) >>
641                                     AC_WCAP_DELAY_SHIFT);
642
643                 if (wid_caps & AC_WCAP_CONN_LIST)
644                         print_conn_list(buffer, codec, nid, wid_type,
645                                         conn, conn_len);
646
647                 if (wid_caps & AC_WCAP_PROC_WID)
648                         print_proc_caps(buffer, codec, nid);
649
650                 /* NID 0x20 == Realtek Define Registers */
651                 if (codec->vendor_id == 0x10ec && nid == 0x20)
652                         print_realtek_coef(buffer, codec, nid);
653         }
654         snd_hda_power_down(codec);
655 }
656
657 /*
658  * create a proc read
659  */
660 int snd_hda_codec_proc_new(struct hda_codec *codec)
661 {
662         char name[32];
663         struct snd_info_entry *entry;
664         int err;
665
666         snprintf(name, sizeof(name), "codec#%d", codec->addr);
667         err = snd_card_proc_new(codec->bus->card, name, &entry);
668         if (err < 0)
669                 return err;
670
671         snd_info_set_text_ops(entry, codec, print_codec_info);
672         return 0;
673 }
674