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TOMOYO Linux Cross Reference
Linux/sound/pci/hda/hda_proc.c

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  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 <linux/slab.h>
 26 #include <sound/core.h>
 27 #include <linux/module.h>
 28 #include "hda_codec.h"
 29 #include "hda_local.h"
 30 
 31 static int dump_coef = -1;
 32 module_param(dump_coef, int, 0644);
 33 MODULE_PARM_DESC(dump_coef, "Dump processing coefficients in codec proc file (-1=auto, 0=disable, 1=enable)");
 34 
 35 /* always use noncached version */
 36 #define param_read(codec, nid, parm) \
 37         snd_hdac_read_parm_uncached(&(codec)->core, nid, parm)
 38 
 39 static char *bits_names(unsigned int bits, char *names[], int size)
 40 {
 41         int i, n;
 42         static char buf[128];
 43 
 44         for (i = 0, n = 0; i < size; i++) {
 45                 if (bits & (1U<<i) && names[i])
 46                         n += snprintf(buf + n, sizeof(buf) - n, " %s",
 47                                       names[i]);
 48         }
 49         buf[n] = '\0';
 50 
 51         return buf;
 52 }
 53 
 54 static const char *get_wid_type_name(unsigned int wid_value)
 55 {
 56         static char *names[16] = {
 57                 [AC_WID_AUD_OUT] = "Audio Output",
 58                 [AC_WID_AUD_IN] = "Audio Input",
 59                 [AC_WID_AUD_MIX] = "Audio Mixer",
 60                 [AC_WID_AUD_SEL] = "Audio Selector",
 61                 [AC_WID_PIN] = "Pin Complex",
 62                 [AC_WID_POWER] = "Power Widget",
 63                 [AC_WID_VOL_KNB] = "Volume Knob Widget",
 64                 [AC_WID_BEEP] = "Beep Generator Widget",
 65                 [AC_WID_VENDOR] = "Vendor Defined Widget",
 66         };
 67         if (wid_value == -1)
 68                 return "UNKNOWN Widget";
 69         wid_value &= 0xf;
 70         if (names[wid_value])
 71                 return names[wid_value];
 72         else
 73                 return "UNKNOWN Widget";
 74 }
 75 
 76 static void print_nid_array(struct snd_info_buffer *buffer,
 77                             struct hda_codec *codec, hda_nid_t nid,
 78                             struct snd_array *array)
 79 {
 80         int i;
 81         struct hda_nid_item *items = array->list, *item;
 82         struct snd_kcontrol *kctl;
 83         for (i = 0; i < array->used; i++) {
 84                 item = &items[i];
 85                 if (item->nid == nid) {
 86                         kctl = item->kctl;
 87                         snd_iprintf(buffer,
 88                           "  Control: name=\"%s\", index=%i, device=%i\n",
 89                           kctl->id.name, kctl->id.index + item->index,
 90                           kctl->id.device);
 91                         if (item->flags & HDA_NID_ITEM_AMP)
 92                                 snd_iprintf(buffer,
 93                                   "    ControlAmp: chs=%lu, dir=%s, "
 94                                   "idx=%lu, ofs=%lu\n",
 95                                   get_amp_channels(kctl),
 96                                   get_amp_direction(kctl) ? "Out" : "In",
 97                                   get_amp_index(kctl),
 98                                   get_amp_offset(kctl));
 99                 }
100         }
101 }
102 
103 static void print_nid_pcms(struct snd_info_buffer *buffer,
104                            struct hda_codec *codec, hda_nid_t nid)
105 {
106         int type;
107         struct hda_pcm *cpcm;
108 
109         list_for_each_entry(cpcm, &codec->pcm_list_head, list) {
110                 for (type = 0; type < 2; type++) {
111                         if (cpcm->stream[type].nid != nid || cpcm->pcm == NULL)
112                                 continue;
113                         snd_iprintf(buffer, "  Device: name=\"%s\", "
114                                     "type=\"%s\", device=%i\n",
115                                     cpcm->name,
116                                     snd_hda_pcm_type_name[cpcm->pcm_type],
117                                     cpcm->pcm->device);
118                 }
119         }
120 }
121 
122 static void print_amp_caps(struct snd_info_buffer *buffer,
123                            struct hda_codec *codec, hda_nid_t nid, int dir)
124 {
125         unsigned int caps;
126         caps = param_read(codec, nid, dir == HDA_OUTPUT ?
127                           AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP);
128         if (caps == -1 || caps == 0) {
129                 snd_iprintf(buffer, "N/A\n");
130                 return;
131         }
132         snd_iprintf(buffer, "ofs=0x%02x, nsteps=0x%02x, stepsize=0x%02x, "
133                     "mute=%x\n",
134                     caps & AC_AMPCAP_OFFSET,
135                     (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT,
136                     (caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT,
137                     (caps & AC_AMPCAP_MUTE) >> AC_AMPCAP_MUTE_SHIFT);
138 }
139 
140 /* is this a stereo widget or a stereo-to-mono mix? */
141 static bool is_stereo_amps(struct hda_codec *codec, hda_nid_t nid,
142                            int dir, unsigned int wcaps, int indices)
143 {
144         hda_nid_t conn;
145 
146         if (wcaps & AC_WCAP_STEREO)
147                 return true;
148         /* check for a stereo-to-mono mix; it must be:
149          * only a single connection, only for input, and only a mixer widget
150          */
151         if (indices != 1 || dir != HDA_INPUT ||
152             get_wcaps_type(wcaps) != AC_WID_AUD_MIX)
153                 return false;
154 
155         if (snd_hda_get_raw_connections(codec, nid, &conn, 1) < 0)
156                 return false;
157         /* the connection source is a stereo? */
158         wcaps = snd_hda_param_read(codec, conn, AC_PAR_AUDIO_WIDGET_CAP);
159         return !!(wcaps & AC_WCAP_STEREO);
160 }
161 
162 static void print_amp_vals(struct snd_info_buffer *buffer,
163                            struct hda_codec *codec, hda_nid_t nid,
164                            int dir, unsigned int wcaps, int indices)
165 {
166         unsigned int val;
167         bool stereo;
168         int i;
169 
170         stereo = is_stereo_amps(codec, nid, dir, wcaps, indices);
171 
172         dir = dir == HDA_OUTPUT ? AC_AMP_GET_OUTPUT : AC_AMP_GET_INPUT;
173         for (i = 0; i < indices; i++) {
174                 snd_iprintf(buffer, " [");
175                 val = snd_hda_codec_read(codec, nid, 0,
176                                          AC_VERB_GET_AMP_GAIN_MUTE,
177                                          AC_AMP_GET_LEFT | dir | i);
178                 snd_iprintf(buffer, "0x%02x", val);
179                 if (stereo) {
180                         val = snd_hda_codec_read(codec, nid, 0,
181                                                  AC_VERB_GET_AMP_GAIN_MUTE,
182                                                  AC_AMP_GET_RIGHT | dir | i);
183                         snd_iprintf(buffer, " 0x%02x", val);
184                 }
185                 snd_iprintf(buffer, "]");
186         }
187         snd_iprintf(buffer, "\n");
188 }
189 
190 static void print_pcm_rates(struct snd_info_buffer *buffer, unsigned int pcm)
191 {
192         static unsigned int rates[] = {
193                 8000, 11025, 16000, 22050, 32000, 44100, 48000, 88200,
194                 96000, 176400, 192000, 384000
195         };
196         int i;
197 
198         pcm &= AC_SUPPCM_RATES;
199         snd_iprintf(buffer, "    rates [0x%x]:", pcm);
200         for (i = 0; i < ARRAY_SIZE(rates); i++)
201                 if (pcm & (1 << i))
202                         snd_iprintf(buffer,  " %d", rates[i]);
203         snd_iprintf(buffer, "\n");
204 }
205 
206 static void print_pcm_bits(struct snd_info_buffer *buffer, unsigned int pcm)
207 {
208         char buf[SND_PRINT_BITS_ADVISED_BUFSIZE];
209 
210         snd_iprintf(buffer, "    bits [0x%x]:", (pcm >> 16) & 0xff);
211         snd_print_pcm_bits(pcm, buf, sizeof(buf));
212         snd_iprintf(buffer, "%s\n", buf);
213 }
214 
215 static void print_pcm_formats(struct snd_info_buffer *buffer,
216                               unsigned int streams)
217 {
218         snd_iprintf(buffer, "    formats [0x%x]:", streams & 0xf);
219         if (streams & AC_SUPFMT_PCM)
220                 snd_iprintf(buffer, " PCM");
221         if (streams & AC_SUPFMT_FLOAT32)
222                 snd_iprintf(buffer, " FLOAT");
223         if (streams & AC_SUPFMT_AC3)
224                 snd_iprintf(buffer, " AC3");
225         snd_iprintf(buffer, "\n");
226 }
227 
228 static void print_pcm_caps(struct snd_info_buffer *buffer,
229                            struct hda_codec *codec, hda_nid_t nid)
230 {
231         unsigned int pcm = param_read(codec, nid, AC_PAR_PCM);
232         unsigned int stream = param_read(codec, nid, AC_PAR_STREAM);
233         if (pcm == -1 || stream == -1) {
234                 snd_iprintf(buffer, "N/A\n");
235                 return;
236         }
237         print_pcm_rates(buffer, pcm);
238         print_pcm_bits(buffer, pcm);
239         print_pcm_formats(buffer, stream);
240 }
241 
242 static const char *get_jack_connection(u32 cfg)
243 {
244         static char *names[16] = {
245                 "Unknown", "1/8", "1/4", "ATAPI",
246                 "RCA", "Optical","Digital", "Analog",
247                 "DIN", "XLR", "RJ11", "Comb",
248                 NULL, NULL, NULL, "Other"
249         };
250         cfg = (cfg & AC_DEFCFG_CONN_TYPE) >> AC_DEFCFG_CONN_TYPE_SHIFT;
251         if (names[cfg])
252                 return names[cfg];
253         else
254                 return "UNKNOWN";
255 }
256 
257 static const char *get_jack_color(u32 cfg)
258 {
259         static char *names[16] = {
260                 "Unknown", "Black", "Grey", "Blue",
261                 "Green", "Red", "Orange", "Yellow",
262                 "Purple", "Pink", NULL, NULL,
263                 NULL, NULL, "White", "Other",
264         };
265         cfg = (cfg & AC_DEFCFG_COLOR) >> AC_DEFCFG_COLOR_SHIFT;
266         if (names[cfg])
267                 return names[cfg];
268         else
269                 return "UNKNOWN";
270 }
271 
272 static void print_pin_caps(struct snd_info_buffer *buffer,
273                            struct hda_codec *codec, hda_nid_t nid,
274                            int *supports_vref)
275 {
276         static char *jack_conns[4] = { "Jack", "N/A", "Fixed", "Both" };
277         unsigned int caps, val;
278 
279         caps = param_read(codec, nid, AC_PAR_PIN_CAP);
280         snd_iprintf(buffer, "  Pincap 0x%08x:", caps);
281         if (caps & AC_PINCAP_IN)
282                 snd_iprintf(buffer, " IN");
283         if (caps & AC_PINCAP_OUT)
284                 snd_iprintf(buffer, " OUT");
285         if (caps & AC_PINCAP_HP_DRV)
286                 snd_iprintf(buffer, " HP");
287         if (caps & AC_PINCAP_EAPD)
288                 snd_iprintf(buffer, " EAPD");
289         if (caps & AC_PINCAP_PRES_DETECT)
290                 snd_iprintf(buffer, " Detect");
291         if (caps & AC_PINCAP_BALANCE)
292                 snd_iprintf(buffer, " Balanced");
293         if (caps & AC_PINCAP_HDMI) {
294                 /* Realtek uses this bit as a different meaning */
295                 if ((codec->core.vendor_id >> 16) == 0x10ec)
296                         snd_iprintf(buffer, " R/L");
297                 else {
298                         if (caps & AC_PINCAP_HBR)
299                                 snd_iprintf(buffer, " HBR");
300                         snd_iprintf(buffer, " HDMI");
301                 }
302         }
303         if (caps & AC_PINCAP_DP)
304                 snd_iprintf(buffer, " DP");
305         if (caps & AC_PINCAP_TRIG_REQ)
306                 snd_iprintf(buffer, " Trigger");
307         if (caps & AC_PINCAP_IMP_SENSE)
308                 snd_iprintf(buffer, " ImpSense");
309         snd_iprintf(buffer, "\n");
310         if (caps & AC_PINCAP_VREF) {
311                 unsigned int vref =
312                         (caps & AC_PINCAP_VREF) >> AC_PINCAP_VREF_SHIFT;
313                 snd_iprintf(buffer, "    Vref caps:");
314                 if (vref & AC_PINCAP_VREF_HIZ)
315                         snd_iprintf(buffer, " HIZ");
316                 if (vref & AC_PINCAP_VREF_50)
317                         snd_iprintf(buffer, " 50");
318                 if (vref & AC_PINCAP_VREF_GRD)
319                         snd_iprintf(buffer, " GRD");
320                 if (vref & AC_PINCAP_VREF_80)
321                         snd_iprintf(buffer, " 80");
322                 if (vref & AC_PINCAP_VREF_100)
323                         snd_iprintf(buffer, " 100");
324                 snd_iprintf(buffer, "\n");
325                 *supports_vref = 1;
326         } else
327                 *supports_vref = 0;
328         if (caps & AC_PINCAP_EAPD) {
329                 val = snd_hda_codec_read(codec, nid, 0,
330                                          AC_VERB_GET_EAPD_BTLENABLE, 0);
331                 snd_iprintf(buffer, "  EAPD 0x%x:", val);
332                 if (val & AC_EAPDBTL_BALANCED)
333                         snd_iprintf(buffer, " BALANCED");
334                 if (val & AC_EAPDBTL_EAPD)
335                         snd_iprintf(buffer, " EAPD");
336                 if (val & AC_EAPDBTL_LR_SWAP)
337                         snd_iprintf(buffer, " R/L");
338                 snd_iprintf(buffer, "\n");
339         }
340         caps = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONFIG_DEFAULT, 0);
341         snd_iprintf(buffer, "  Pin Default 0x%08x: [%s] %s at %s %s\n", caps,
342                     jack_conns[(caps & AC_DEFCFG_PORT_CONN) >> AC_DEFCFG_PORT_CONN_SHIFT],
343                     snd_hda_get_jack_type(caps),
344                     snd_hda_get_jack_connectivity(caps),
345                     snd_hda_get_jack_location(caps));
346         snd_iprintf(buffer, "    Conn = %s, Color = %s\n",
347                     get_jack_connection(caps),
348                     get_jack_color(caps));
349         /* Default association and sequence values refer to default grouping
350          * of pin complexes and their sequence within the group. This is used
351          * for priority and resource allocation.
352          */
353         snd_iprintf(buffer, "    DefAssociation = 0x%x, Sequence = 0x%x\n",
354                     (caps & AC_DEFCFG_DEF_ASSOC) >> AC_DEFCFG_ASSOC_SHIFT,
355                     caps & AC_DEFCFG_SEQUENCE);
356         if (((caps & AC_DEFCFG_MISC) >> AC_DEFCFG_MISC_SHIFT) &
357             AC_DEFCFG_MISC_NO_PRESENCE) {
358                 /* Miscellaneous bit indicates external hardware does not
359                  * support presence detection even if the pin complex
360                  * indicates it is supported.
361                  */
362                 snd_iprintf(buffer, "    Misc = NO_PRESENCE\n");
363         }
364 }
365 
366 static void print_pin_ctls(struct snd_info_buffer *buffer,
367                            struct hda_codec *codec, hda_nid_t nid,
368                            int supports_vref)
369 {
370         unsigned int pinctls;
371 
372         pinctls = snd_hda_codec_read(codec, nid, 0,
373                                      AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
374         snd_iprintf(buffer, "  Pin-ctls: 0x%02x:", pinctls);
375         if (pinctls & AC_PINCTL_IN_EN)
376                 snd_iprintf(buffer, " IN");
377         if (pinctls & AC_PINCTL_OUT_EN)
378                 snd_iprintf(buffer, " OUT");
379         if (pinctls & AC_PINCTL_HP_EN)
380                 snd_iprintf(buffer, " HP");
381         if (supports_vref) {
382                 int vref = pinctls & AC_PINCTL_VREFEN;
383                 switch (vref) {
384                 case AC_PINCTL_VREF_HIZ:
385                         snd_iprintf(buffer, " VREF_HIZ");
386                         break;
387                 case AC_PINCTL_VREF_50:
388                         snd_iprintf(buffer, " VREF_50");
389                         break;
390                 case AC_PINCTL_VREF_GRD:
391                         snd_iprintf(buffer, " VREF_GRD");
392                         break;
393                 case AC_PINCTL_VREF_80:
394                         snd_iprintf(buffer, " VREF_80");
395                         break;
396                 case AC_PINCTL_VREF_100:
397                         snd_iprintf(buffer, " VREF_100");
398                         break;
399                 }
400         }
401         snd_iprintf(buffer, "\n");
402 }
403 
404 static void print_vol_knob(struct snd_info_buffer *buffer,
405                            struct hda_codec *codec, hda_nid_t nid)
406 {
407         unsigned int cap = param_read(codec, nid, AC_PAR_VOL_KNB_CAP);
408         snd_iprintf(buffer, "  Volume-Knob: delta=%d, steps=%d, ",
409                     (cap >> 7) & 1, cap & 0x7f);
410         cap = snd_hda_codec_read(codec, nid, 0,
411                                  AC_VERB_GET_VOLUME_KNOB_CONTROL, 0);
412         snd_iprintf(buffer, "direct=%d, val=%d\n",
413                     (cap >> 7) & 1, cap & 0x7f);
414 }
415 
416 static void print_audio_io(struct snd_info_buffer *buffer,
417                            struct hda_codec *codec, hda_nid_t nid,
418                            unsigned int wid_type)
419 {
420         int conv = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONV, 0);
421         snd_iprintf(buffer,
422                     "  Converter: stream=%d, channel=%d\n",
423                     (conv & AC_CONV_STREAM) >> AC_CONV_STREAM_SHIFT,
424                     conv & AC_CONV_CHANNEL);
425 
426         if (wid_type == AC_WID_AUD_IN && (conv & AC_CONV_CHANNEL) == 0) {
427                 int sdi = snd_hda_codec_read(codec, nid, 0,
428                                              AC_VERB_GET_SDI_SELECT, 0);
429                 snd_iprintf(buffer, "  SDI-Select: %d\n",
430                             sdi & AC_SDI_SELECT);
431         }
432 }
433 
434 static void print_digital_conv(struct snd_info_buffer *buffer,
435                                struct hda_codec *codec, hda_nid_t nid)
436 {
437         unsigned int digi1 = snd_hda_codec_read(codec, nid, 0,
438                                                 AC_VERB_GET_DIGI_CONVERT_1, 0);
439         unsigned char digi2 = digi1 >> 8;
440         unsigned char digi3 = digi1 >> 16;
441 
442         snd_iprintf(buffer, "  Digital:");
443         if (digi1 & AC_DIG1_ENABLE)
444                 snd_iprintf(buffer, " Enabled");
445         if (digi1 & AC_DIG1_V)
446                 snd_iprintf(buffer, " Validity");
447         if (digi1 & AC_DIG1_VCFG)
448                 snd_iprintf(buffer, " ValidityCfg");
449         if (digi1 & AC_DIG1_EMPHASIS)
450                 snd_iprintf(buffer, " Preemphasis");
451         if (digi1 & AC_DIG1_COPYRIGHT)
452                 snd_iprintf(buffer, " Non-Copyright");
453         if (digi1 & AC_DIG1_NONAUDIO)
454                 snd_iprintf(buffer, " Non-Audio");
455         if (digi1 & AC_DIG1_PROFESSIONAL)
456                 snd_iprintf(buffer, " Pro");
457         if (digi1 & AC_DIG1_LEVEL)
458                 snd_iprintf(buffer, " GenLevel");
459         if (digi3 & AC_DIG3_KAE)
460                 snd_iprintf(buffer, " KAE");
461         snd_iprintf(buffer, "\n");
462         snd_iprintf(buffer, "  Digital category: 0x%x\n",
463                     digi2 & AC_DIG2_CC);
464         snd_iprintf(buffer, "  IEC Coding Type: 0x%x\n",
465                         digi3 & AC_DIG3_ICT);
466 }
467 
468 static const char *get_pwr_state(u32 state)
469 {
470         static const char * const buf[] = {
471                 "D0", "D1", "D2", "D3", "D3cold"
472         };
473         if (state < ARRAY_SIZE(buf))
474                 return buf[state];
475         return "UNKNOWN";
476 }
477 
478 static void print_power_state(struct snd_info_buffer *buffer,
479                               struct hda_codec *codec, hda_nid_t nid)
480 {
481         static char *names[] = {
482                 [ilog2(AC_PWRST_D0SUP)]         = "D0",
483                 [ilog2(AC_PWRST_D1SUP)]         = "D1",
484                 [ilog2(AC_PWRST_D2SUP)]         = "D2",
485                 [ilog2(AC_PWRST_D3SUP)]         = "D3",
486                 [ilog2(AC_PWRST_D3COLDSUP)]     = "D3cold",
487                 [ilog2(AC_PWRST_S3D3COLDSUP)]   = "S3D3cold",
488                 [ilog2(AC_PWRST_CLKSTOP)]       = "CLKSTOP",
489                 [ilog2(AC_PWRST_EPSS)]          = "EPSS",
490         };
491 
492         int sup = param_read(codec, nid, AC_PAR_POWER_STATE);
493         int pwr = snd_hda_codec_read(codec, nid, 0,
494                                      AC_VERB_GET_POWER_STATE, 0);
495         if (sup != -1)
496                 snd_iprintf(buffer, "  Power states: %s\n",
497                             bits_names(sup, names, ARRAY_SIZE(names)));
498 
499         snd_iprintf(buffer, "  Power: setting=%s, actual=%s",
500                     get_pwr_state(pwr & AC_PWRST_SETTING),
501                     get_pwr_state((pwr & AC_PWRST_ACTUAL) >>
502                                   AC_PWRST_ACTUAL_SHIFT));
503         if (pwr & AC_PWRST_ERROR)
504                 snd_iprintf(buffer, ", Error");
505         if (pwr & AC_PWRST_CLK_STOP_OK)
506                 snd_iprintf(buffer, ", Clock-stop-OK");
507         if (pwr & AC_PWRST_SETTING_RESET)
508                 snd_iprintf(buffer, ", Setting-reset");
509         snd_iprintf(buffer, "\n");
510 }
511 
512 static void print_unsol_cap(struct snd_info_buffer *buffer,
513                               struct hda_codec *codec, hda_nid_t nid)
514 {
515         int unsol = snd_hda_codec_read(codec, nid, 0,
516                                        AC_VERB_GET_UNSOLICITED_RESPONSE, 0);
517         snd_iprintf(buffer,
518                     "  Unsolicited: tag=%02x, enabled=%d\n",
519                     unsol & AC_UNSOL_TAG,
520                     (unsol & AC_UNSOL_ENABLED) ? 1 : 0);
521 }
522 
523 static inline bool can_dump_coef(struct hda_codec *codec)
524 {
525         switch (dump_coef) {
526         case 0: return false;
527         case 1: return true;
528         default: return codec->dump_coef;
529         }
530 }
531 
532 static void print_proc_caps(struct snd_info_buffer *buffer,
533                             struct hda_codec *codec, hda_nid_t nid)
534 {
535         unsigned int i, ncoeff, oldindex;
536         unsigned int proc_caps = param_read(codec, nid, AC_PAR_PROC_CAP);
537         ncoeff = (proc_caps & AC_PCAP_NUM_COEF) >> AC_PCAP_NUM_COEF_SHIFT;
538         snd_iprintf(buffer, "  Processing caps: benign=%d, ncoeff=%d\n",
539                     proc_caps & AC_PCAP_BENIGN, ncoeff);
540 
541         if (!can_dump_coef(codec))
542                 return;
543 
544         /* Note: This is racy - another process could run in parallel and change
545            the coef index too. */
546         oldindex = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_COEF_INDEX, 0);
547         for (i = 0; i < ncoeff; i++) {
548                 unsigned int val;
549                 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_COEF_INDEX, i);
550                 val = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_PROC_COEF,
551                                          0);
552                 snd_iprintf(buffer, "    Coeff 0x%02x: 0x%04x\n", i, val);
553         }
554         snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_COEF_INDEX, oldindex);
555 }
556 
557 static void print_conn_list(struct snd_info_buffer *buffer,
558                             struct hda_codec *codec, hda_nid_t nid,
559                             unsigned int wid_type, hda_nid_t *conn,
560                             int conn_len)
561 {
562         int c, curr = -1;
563         const hda_nid_t *list;
564         int cache_len;
565 
566         if (conn_len > 1 &&
567             wid_type != AC_WID_AUD_MIX &&
568             wid_type != AC_WID_VOL_KNB &&
569             wid_type != AC_WID_POWER)
570                 curr = snd_hda_codec_read(codec, nid, 0,
571                                           AC_VERB_GET_CONNECT_SEL, 0);
572         snd_iprintf(buffer, "  Connection: %d\n", conn_len);
573         if (conn_len > 0) {
574                 snd_iprintf(buffer, "    ");
575                 for (c = 0; c < conn_len; c++) {
576                         snd_iprintf(buffer, " 0x%02x", conn[c]);
577                         if (c == curr)
578                                 snd_iprintf(buffer, "*");
579                 }
580                 snd_iprintf(buffer, "\n");
581         }
582 
583         /* Get Cache connections info */
584         cache_len = snd_hda_get_conn_list(codec, nid, &list);
585         if (cache_len >= 0 && (cache_len != conn_len ||
586                               memcmp(list, conn, conn_len) != 0)) {
587                 snd_iprintf(buffer, "  In-driver Connection: %d\n", cache_len);
588                 if (cache_len > 0) {
589                         snd_iprintf(buffer, "    ");
590                         for (c = 0; c < cache_len; c++)
591                                 snd_iprintf(buffer, " 0x%02x", list[c]);
592                         snd_iprintf(buffer, "\n");
593                 }
594         }
595 }
596 
597 static void print_gpio(struct snd_info_buffer *buffer,
598                        struct hda_codec *codec, hda_nid_t nid)
599 {
600         unsigned int gpio =
601                 param_read(codec, codec->core.afg, AC_PAR_GPIO_CAP);
602         unsigned int enable, direction, wake, unsol, sticky, data;
603         int i, max;
604         snd_iprintf(buffer, "GPIO: io=%d, o=%d, i=%d, "
605                     "unsolicited=%d, wake=%d\n",
606                     gpio & AC_GPIO_IO_COUNT,
607                     (gpio & AC_GPIO_O_COUNT) >> AC_GPIO_O_COUNT_SHIFT,
608                     (gpio & AC_GPIO_I_COUNT) >> AC_GPIO_I_COUNT_SHIFT,
609                     (gpio & AC_GPIO_UNSOLICITED) ? 1 : 0,
610                     (gpio & AC_GPIO_WAKE) ? 1 : 0);
611         max = gpio & AC_GPIO_IO_COUNT;
612         if (!max || max > 8)
613                 return;
614         enable = snd_hda_codec_read(codec, nid, 0,
615                                     AC_VERB_GET_GPIO_MASK, 0);
616         direction = snd_hda_codec_read(codec, nid, 0,
617                                        AC_VERB_GET_GPIO_DIRECTION, 0);
618         wake = snd_hda_codec_read(codec, nid, 0,
619                                   AC_VERB_GET_GPIO_WAKE_MASK, 0);
620         unsol  = snd_hda_codec_read(codec, nid, 0,
621                                     AC_VERB_GET_GPIO_UNSOLICITED_RSP_MASK, 0);
622         sticky = snd_hda_codec_read(codec, nid, 0,
623                                     AC_VERB_GET_GPIO_STICKY_MASK, 0);
624         data = snd_hda_codec_read(codec, nid, 0,
625                                   AC_VERB_GET_GPIO_DATA, 0);
626         for (i = 0; i < max; ++i)
627                 snd_iprintf(buffer,
628                             "  IO[%d]: enable=%d, dir=%d, wake=%d, "
629                             "sticky=%d, data=%d, unsol=%d\n", i,
630                             (enable & (1<<i)) ? 1 : 0,
631                             (direction & (1<<i)) ? 1 : 0,
632                             (wake & (1<<i)) ? 1 : 0,
633                             (sticky & (1<<i)) ? 1 : 0,
634                             (data & (1<<i)) ? 1 : 0,
635                             (unsol & (1<<i)) ? 1 : 0);
636         /* FIXME: add GPO and GPI pin information */
637         print_nid_array(buffer, codec, nid, &codec->mixers);
638         print_nid_array(buffer, codec, nid, &codec->nids);
639 }
640 
641 static void print_device_list(struct snd_info_buffer *buffer,
642                             struct hda_codec *codec, hda_nid_t nid)
643 {
644         int i, curr = -1;
645         u8 dev_list[AC_MAX_DEV_LIST_LEN];
646         int devlist_len;
647 
648         devlist_len = snd_hda_get_devices(codec, nid, dev_list,
649                                         AC_MAX_DEV_LIST_LEN);
650         snd_iprintf(buffer, "  Devices: %d\n", devlist_len);
651         if (devlist_len <= 0)
652                 return;
653 
654         curr = snd_hda_codec_read(codec, nid, 0,
655                                 AC_VERB_GET_DEVICE_SEL, 0);
656 
657         for (i = 0; i < devlist_len; i++) {
658                 if (i == curr)
659                         snd_iprintf(buffer, "    *");
660                 else
661                         snd_iprintf(buffer, "     ");
662 
663                 snd_iprintf(buffer,
664                         "Dev %02d: PD = %d, ELDV = %d, IA = %d\n", i,
665                         !!(dev_list[i] & AC_DE_PD),
666                         !!(dev_list[i] & AC_DE_ELDV),
667                         !!(dev_list[i] & AC_DE_IA));
668         }
669 }
670 
671 static void print_codec_core_info(struct hdac_device *codec,
672                                   struct snd_info_buffer *buffer)
673 {
674         snd_iprintf(buffer, "Codec: ");
675         if (codec->vendor_name && codec->chip_name)
676                 snd_iprintf(buffer, "%s %s\n",
677                             codec->vendor_name, codec->chip_name);
678         else
679                 snd_iprintf(buffer, "Not Set\n");
680         snd_iprintf(buffer, "Address: %d\n", codec->addr);
681         if (codec->afg)
682                 snd_iprintf(buffer, "AFG Function Id: 0x%x (unsol %u)\n",
683                         codec->afg_function_id, codec->afg_unsol);
684         if (codec->mfg)
685                 snd_iprintf(buffer, "MFG Function Id: 0x%x (unsol %u)\n",
686                         codec->mfg_function_id, codec->mfg_unsol);
687         snd_iprintf(buffer, "Vendor Id: 0x%08x\n", codec->vendor_id);
688         snd_iprintf(buffer, "Subsystem Id: 0x%08x\n", codec->subsystem_id);
689         snd_iprintf(buffer, "Revision Id: 0x%x\n", codec->revision_id);
690 
691         if (codec->mfg)
692                 snd_iprintf(buffer, "Modem Function Group: 0x%x\n", codec->mfg);
693         else
694                 snd_iprintf(buffer, "No Modem Function Group found\n");
695 }
696 
697 static void print_codec_info(struct snd_info_entry *entry,
698                              struct snd_info_buffer *buffer)
699 {
700         struct hda_codec *codec = entry->private_data;
701         hda_nid_t nid, fg;
702         int i, nodes;
703 
704         print_codec_core_info(&codec->core, buffer);
705         fg = codec->core.afg;
706         if (!fg)
707                 return;
708         snd_hda_power_up(codec);
709         snd_iprintf(buffer, "Default PCM:\n");
710         print_pcm_caps(buffer, codec, fg);
711         snd_iprintf(buffer, "Default Amp-In caps: ");
712         print_amp_caps(buffer, codec, fg, HDA_INPUT);
713         snd_iprintf(buffer, "Default Amp-Out caps: ");
714         print_amp_caps(buffer, codec, fg, HDA_OUTPUT);
715         snd_iprintf(buffer, "State of AFG node 0x%02x:\n", fg);
716         print_power_state(buffer, codec, fg);
717 
718         nodes = snd_hda_get_sub_nodes(codec, fg, &nid);
719         if (! nid || nodes < 0) {
720                 snd_iprintf(buffer, "Invalid AFG subtree\n");
721                 snd_hda_power_down(codec);
722                 return;
723         }
724 
725         print_gpio(buffer, codec, fg);
726         if (codec->proc_widget_hook)
727                 codec->proc_widget_hook(buffer, codec, fg);
728 
729         for (i = 0; i < nodes; i++, nid++) {
730                 unsigned int wid_caps =
731                         param_read(codec, nid, AC_PAR_AUDIO_WIDGET_CAP);
732                 unsigned int wid_type = get_wcaps_type(wid_caps);
733                 hda_nid_t *conn = NULL;
734                 int conn_len = 0;
735 
736                 snd_iprintf(buffer, "Node 0x%02x [%s] wcaps 0x%x:", nid,
737                             get_wid_type_name(wid_type), wid_caps);
738                 if (wid_caps & AC_WCAP_STEREO) {
739                         unsigned int chans = get_wcaps_channels(wid_caps);
740                         if (chans == 2)
741                                 snd_iprintf(buffer, " Stereo");
742                         else
743                                 snd_iprintf(buffer, " %d-Channels", chans);
744                 } else
745                         snd_iprintf(buffer, " Mono");
746                 if (wid_caps & AC_WCAP_DIGITAL)
747                         snd_iprintf(buffer, " Digital");
748                 if (wid_caps & AC_WCAP_IN_AMP)
749                         snd_iprintf(buffer, " Amp-In");
750                 if (wid_caps & AC_WCAP_OUT_AMP)
751                         snd_iprintf(buffer, " Amp-Out");
752                 if (wid_caps & AC_WCAP_STRIPE)
753                         snd_iprintf(buffer, " Stripe");
754                 if (wid_caps & AC_WCAP_LR_SWAP)
755                         snd_iprintf(buffer, " R/L");
756                 if (wid_caps & AC_WCAP_CP_CAPS)
757                         snd_iprintf(buffer, " CP");
758                 snd_iprintf(buffer, "\n");
759 
760                 print_nid_array(buffer, codec, nid, &codec->mixers);
761                 print_nid_array(buffer, codec, nid, &codec->nids);
762                 print_nid_pcms(buffer, codec, nid);
763 
764                 /* volume knob is a special widget that always have connection
765                  * list
766                  */
767                 if (wid_type == AC_WID_VOL_KNB)
768                         wid_caps |= AC_WCAP_CONN_LIST;
769 
770                 if (wid_caps & AC_WCAP_CONN_LIST) {
771                         conn_len = snd_hda_get_num_raw_conns(codec, nid);
772                         if (conn_len > 0) {
773                                 conn = kmalloc(sizeof(hda_nid_t) * conn_len,
774                                                GFP_KERNEL);
775                                 if (!conn)
776                                         return;
777                                 if (snd_hda_get_raw_connections(codec, nid, conn,
778                                                                 conn_len) < 0)
779                                         conn_len = 0;
780                         }
781                 }
782 
783                 if (wid_caps & AC_WCAP_IN_AMP) {
784                         snd_iprintf(buffer, "  Amp-In caps: ");
785                         print_amp_caps(buffer, codec, nid, HDA_INPUT);
786                         snd_iprintf(buffer, "  Amp-In vals: ");
787                         if (wid_type == AC_WID_PIN ||
788                             (codec->single_adc_amp &&
789                              wid_type == AC_WID_AUD_IN))
790                                 print_amp_vals(buffer, codec, nid, HDA_INPUT,
791                                                wid_caps, 1);
792                         else
793                                 print_amp_vals(buffer, codec, nid, HDA_INPUT,
794                                                wid_caps, conn_len);
795                 }
796                 if (wid_caps & AC_WCAP_OUT_AMP) {
797                         snd_iprintf(buffer, "  Amp-Out caps: ");
798                         print_amp_caps(buffer, codec, nid, HDA_OUTPUT);
799                         snd_iprintf(buffer, "  Amp-Out vals: ");
800                         if (wid_type == AC_WID_PIN &&
801                             codec->pin_amp_workaround)
802                                 print_amp_vals(buffer, codec, nid, HDA_OUTPUT,
803                                                wid_caps, conn_len);
804                         else
805                                 print_amp_vals(buffer, codec, nid, HDA_OUTPUT,
806                                                wid_caps, 1);
807                 }
808 
809                 switch (wid_type) {
810                 case AC_WID_PIN: {
811                         int supports_vref;
812                         print_pin_caps(buffer, codec, nid, &supports_vref);
813                         print_pin_ctls(buffer, codec, nid, supports_vref);
814                         break;
815                 }
816                 case AC_WID_VOL_KNB:
817                         print_vol_knob(buffer, codec, nid);
818                         break;
819                 case AC_WID_AUD_OUT:
820                 case AC_WID_AUD_IN:
821                         print_audio_io(buffer, codec, nid, wid_type);
822                         if (wid_caps & AC_WCAP_DIGITAL)
823                                 print_digital_conv(buffer, codec, nid);
824                         if (wid_caps & AC_WCAP_FORMAT_OVRD) {
825                                 snd_iprintf(buffer, "  PCM:\n");
826                                 print_pcm_caps(buffer, codec, nid);
827                         }
828                         break;
829                 }
830 
831                 if (wid_caps & AC_WCAP_UNSOL_CAP)
832                         print_unsol_cap(buffer, codec, nid);
833 
834                 if (wid_caps & AC_WCAP_POWER)
835                         print_power_state(buffer, codec, nid);
836 
837                 if (wid_caps & AC_WCAP_DELAY)
838                         snd_iprintf(buffer, "  Delay: %d samples\n",
839                                     (wid_caps & AC_WCAP_DELAY) >>
840                                     AC_WCAP_DELAY_SHIFT);
841 
842                 if (wid_type == AC_WID_PIN && codec->dp_mst)
843                         print_device_list(buffer, codec, nid);
844 
845                 if (wid_caps & AC_WCAP_CONN_LIST)
846                         print_conn_list(buffer, codec, nid, wid_type,
847                                         conn, conn_len);
848 
849                 if (wid_caps & AC_WCAP_PROC_WID)
850                         print_proc_caps(buffer, codec, nid);
851 
852                 if (codec->proc_widget_hook)
853                         codec->proc_widget_hook(buffer, codec, nid);
854 
855                 kfree(conn);
856         }
857         snd_hda_power_down(codec);
858 }
859 
860 /*
861  * create a proc read
862  */
863 int snd_hda_codec_proc_new(struct hda_codec *codec)
864 {
865         char name[32];
866         struct snd_info_entry *entry;
867         int err;
868 
869         snprintf(name, sizeof(name), "codec#%d", codec->core.addr);
870         err = snd_card_proc_new(codec->card, name, &entry);
871         if (err < 0)
872                 return err;
873 
874         snd_info_set_text_ops(entry, codec, print_codec_info);
875         return 0;
876 }
877 
878 

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