kernel/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 <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 const char *get_wid_type_name(unsigned int wid_value)
  40 {
  41         static const char * const names[16] = {
  42                 [AC_WID_AUD_OUT] = "Audio Output",
  43                 [AC_WID_AUD_IN] = "Audio Input",
  44                 [AC_WID_AUD_MIX] = "Audio Mixer",
  45                 [AC_WID_AUD_SEL] = "Audio Selector",
  46                 [AC_WID_PIN] = "Pin Complex",
  47                 [AC_WID_POWER] = "Power Widget",
  48                 [AC_WID_VOL_KNB] = "Volume Knob Widget",
  49                 [AC_WID_BEEP] = "Beep Generator Widget",
  50                 [AC_WID_VENDOR] = "Vendor Defined Widget",
  51         };
  52         if (wid_value == -1)
  53                 return "UNKNOWN Widget";
  54         wid_value &= 0xf;
  55         if (names[wid_value])
  56                 return names[wid_value];
  57         else
  58                 return "UNKNOWN Widget";
  59 }
  60
  61 static void print_nid_array(struct snd_info_buffer *buffer,
  62                             struct hda_codec *codec, hda_nid_t nid,
  63                             struct snd_array *array)
  64 {
  65         int i;
  66         struct hda_nid_item *items = array->list, *item;
  67         struct snd_kcontrol *kctl;
  68         for (i = 0; i < array->used; i++) {
  69                 item = &items[i];
  70                 if (item->nid == nid) {
  71                         kctl = item->kctl;
  72                         snd_iprintf(buffer,
  73                           "  Control: name=\"%s\", index=%i, device=%i\n",
  74                           kctl->id.name, kctl->id.index + item->index,
  75                           kctl->id.device);
  76                         if (item->flags & HDA_NID_ITEM_AMP)
  77                                 snd_iprintf(buffer,
  78                                   "    ControlAmp: chs=%lu, dir=%s, "
  79                                   "idx=%lu, ofs=%lu\n",
  80                                   get_amp_channels(kctl),
  81                                   get_amp_direction(kctl) ? "Out" : "In",
  82                                   get_amp_index(kctl),
  83                                   get_amp_offset(kctl));
  84                 }
  85         }
  86 }
  87
  88 static void print_nid_pcms(struct snd_info_buffer *buffer,
  89                            struct hda_codec *codec, hda_nid_t nid)
  90 {
  91         int type;
  92         struct hda_pcm *cpcm;
  93
  94         list_for_each_entry(cpcm, &codec->pcm_list_head, list) {
  95                 for (type = 0; type < 2; type++) {
  96                         if (cpcm->stream[type].nid != nid || cpcm->pcm == NULL)
  97                                 continue;
  98                         snd_iprintf(buffer, "  Device: name=\"%s\", "
  99                                     "type=\"%s\", device=%i\n",
 100                                     cpcm->name,
 101                                     snd_hda_pcm_type_name[cpcm->pcm_type],
 102                                     cpcm->pcm->device);
 103                 }
 104         }
 105 }
 106
 107 static void print_amp_caps(struct snd_info_buffer *buffer,
 108                            struct hda_codec *codec, hda_nid_t nid, int dir)
 109 {
 110         unsigned int caps;
 111         caps = param_read(codec, nid, dir == HDA_OUTPUT ?
 112                           AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP);
 113         if (caps == -1 || caps == 0) {
 114                 snd_iprintf(buffer, "N/A\n");
 115                 return;
 116         }
 117         snd_iprintf(buffer, "ofs=0x%02x, nsteps=0x%02x, stepsize=0x%02x, "
 118                     "mute=%x\n",
 119                     caps & AC_AMPCAP_OFFSET,
 120                     (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT,
 121                     (caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT,
 122                     (caps & AC_AMPCAP_MUTE) >> AC_AMPCAP_MUTE_SHIFT);
 123 }
 124
 125 /* is this a stereo widget or a stereo-to-mono mix? */
 126 static bool is_stereo_amps(struct hda_codec *codec, hda_nid_t nid,
 127                            int dir, unsigned int wcaps, int indices)
 128 {
 129         hda_nid_t conn;
 130
 131         if (wcaps & AC_WCAP_STEREO)
 132                 return true;
 133         /* check for a stereo-to-mono mix; it must be:
 134          * only a single connection, only for input, and only a mixer widget
 135          */
 136         if (indices != 1 || dir != HDA_INPUT ||
 137             get_wcaps_type(wcaps) != AC_WID_AUD_MIX)
 138                 return false;
 139
 140         if (snd_hda_get_raw_connections(codec, nid, &conn, 1) < 0)
 141                 return false;
 142         /* the connection source is a stereo? */
 143         wcaps = snd_hda_param_read(codec, conn, AC_PAR_AUDIO_WIDGET_CAP);
 144         return !!(wcaps & AC_WCAP_STEREO);
 145 }
 146
 147 static void print_amp_vals(struct snd_info_buffer *buffer,
 148                            struct hda_codec *codec, hda_nid_t nid,
 149                            int dir, unsigned int wcaps, int indices)
 150 {
 151         unsigned int val;
 152         bool stereo;
 153         int i;
 154
 155         stereo = is_stereo_amps(codec, nid, dir, wcaps, indices);
 156
 157         dir = dir == HDA_OUTPUT ? AC_AMP_GET_OUTPUT : AC_AMP_GET_INPUT;
 158         for (i = 0; i < indices; i++) {
 159                 snd_iprintf(buffer, " [");
 160                 val = snd_hda_codec_read(codec, nid, 0,
 161                                          AC_VERB_GET_AMP_GAIN_MUTE,
 162                                          AC_AMP_GET_LEFT | dir | i);
 163                 snd_iprintf(buffer, "0x%02x", val);
 164                 if (stereo) {
 165                         val = snd_hda_codec_read(codec, nid, 0,
 166                                                  AC_VERB_GET_AMP_GAIN_MUTE,
 167                                                  AC_AMP_GET_RIGHT | dir | i);
 168                         snd_iprintf(buffer, " 0x%02x", val);
 169                 }
 170                 snd_iprintf(buffer, "]");
 171         }
 172         snd_iprintf(buffer, "\n");
 173 }
 174
 175 static void print_pcm_rates(struct snd_info_buffer *buffer, unsigned int pcm)
 176 {
 177         static unsigned int rates[] = {
 178                 8000, 11025, 16000, 22050, 32000, 44100, 48000, 88200,
 179                 96000, 176400, 192000, 384000
 180         };
 181         int i;
 182
 183         pcm &= AC_SUPPCM_RATES;
 184         snd_iprintf(buffer, "    rates [0x%x]:", pcm);
 185         for (i = 0; i < ARRAY_SIZE(rates); i++)
 186                 if (pcm & (1 << i))
 187                         snd_iprintf(buffer,  " %d", rates[i]);
 188         snd_iprintf(buffer, "\n");
 189 }
 190
 191 static void print_pcm_bits(struct snd_info_buffer *buffer, unsigned int pcm)
 192 {
 193         char buf[SND_PRINT_BITS_ADVISED_BUFSIZE];
 194
 195         snd_iprintf(buffer, "    bits [0x%x]:", (pcm >> 16) & 0xff);
 196         snd_print_pcm_bits(pcm, buf, sizeof(buf));
 197         snd_iprintf(buffer, "%s\n", buf);
 198 }
 199
 200 static void print_pcm_formats(struct snd_info_buffer *buffer,
 201                               unsigned int streams)
 202 {
 203         snd_iprintf(buffer, "    formats [0x%x]:", streams & 0xf);
 204         if (streams & AC_SUPFMT_PCM)
 205                 snd_iprintf(buffer, " PCM");
 206         if (streams & AC_SUPFMT_FLOAT32)
 207                 snd_iprintf(buffer, " FLOAT");
 208         if (streams & AC_SUPFMT_AC3)
 209                 snd_iprintf(buffer, " AC3");
 210         snd_iprintf(buffer, "\n");
 211 }
 212
 213 static void print_pcm_caps(struct snd_info_buffer *buffer,
 214                            struct hda_codec *codec, hda_nid_t nid)
 215 {
 216         unsigned int pcm = param_read(codec, nid, AC_PAR_PCM);
 217         unsigned int stream = param_read(codec, nid, AC_PAR_STREAM);
 218         if (pcm == -1 || stream == -1) {
 219                 snd_iprintf(buffer, "N/A\n");
 220                 return;
 221         }
 222         print_pcm_rates(buffer, pcm);
 223         print_pcm_bits(buffer, pcm);
 224         print_pcm_formats(buffer, stream);
 225 }
 226
 227 static const char *get_jack_connection(u32 cfg)
 228 {
 229         static const char * const names[16] = {
 230                 "Unknown", "1/8", "1/4", "ATAPI",
 231                 "RCA", "Optical","Digital", "Analog",
 232                 "DIN", "XLR", "RJ11", "Comb",
 233                 NULL, NULL, NULL, "Other"
 234         };
 235         cfg = (cfg & AC_DEFCFG_CONN_TYPE) >> AC_DEFCFG_CONN_TYPE_SHIFT;
 236         if (names[cfg])
 237                 return names[cfg];
 238         else
 239                 return "UNKNOWN";
 240 }
 241
 242 static const char *get_jack_color(u32 cfg)
 243 {
 244         static const char * const names[16] = {
 245                 "Unknown", "Black", "Grey", "Blue",
 246                 "Green", "Red", "Orange", "Yellow",
 247                 "Purple", "Pink", NULL, NULL,
 248                 NULL, NULL, "White", "Other",
 249         };
 250         cfg = (cfg & AC_DEFCFG_COLOR) >> AC_DEFCFG_COLOR_SHIFT;
 251         if (names[cfg])
 252                 return names[cfg];
 253         else
 254                 return "UNKNOWN";
 255 }
 256
 257 /*
 258  * Parse the pin default config value and returns the string of the
 259  * jack location, e.g. "Rear", "Front", etc.
 260  */
 261 static const char *get_jack_location(u32 cfg)
 262 {
 263         static const char * const bases[7] = {
 264                 "N/A", "Rear", "Front", "Left", "Right", "Top", "Bottom",
 265         };
 266         static const unsigned char specials_idx[] = {
 267                 0x07, 0x08,
 268                 0x17, 0x18, 0x19,
 269                 0x37, 0x38
 270         };
 271         static const char * const specials[] = {
 272                 "Rear Panel", "Drive Bar",
 273                 "Riser", "HDMI", "ATAPI",
 274                 "Mobile-In", "Mobile-Out"
 275         };
 276         int i;
 277
 278         cfg = (cfg & AC_DEFCFG_LOCATION) >> AC_DEFCFG_LOCATION_SHIFT;
 279         if ((cfg & 0x0f) < 7)
 280                 return bases[cfg & 0x0f];
 281         for (i = 0; i < ARRAY_SIZE(specials_idx); i++) {
 282                 if (cfg == specials_idx[i])
 283                         return specials[i];
 284         }
 285         return "UNKNOWN";
 286 }
 287
 288 /*
 289  * Parse the pin default config value and returns the string of the
 290  * jack connectivity, i.e. external or internal connection.
 291  */
 292 static const char *get_jack_connectivity(u32 cfg)
 293 {
 294         static const char * const jack_locations[4] = {
 295                 "Ext", "Int", "Sep", "Oth"
 296         };
 297
 298         return jack_locations[(cfg >> (AC_DEFCFG_LOCATION_SHIFT + 4)) & 3];
 299 }
 300
 301 /*
 302  * Parse the pin default config value and returns the string of the
 303  * jack type, i.e. the purpose of the jack, such as Line-Out or CD.
 304  */
 305 static const char *get_jack_type(u32 cfg)
 306 {
 307         static const char * const jack_types[16] = {
 308                 "Line Out", "Speaker", "HP Out", "CD",
 309                 "SPDIF Out", "Digital Out", "Modem Line", "Modem Hand",
 310                 "Line In", "Aux", "Mic", "Telephony",
 311                 "SPDIF In", "Digital In", "Reserved", "Other"
 312         };
 313
 314         return jack_types[(cfg & AC_DEFCFG_DEVICE)
 315                                 >> AC_DEFCFG_DEVICE_SHIFT];
 316 }
 317
 318 static void print_pin_caps(struct snd_info_buffer *buffer,
 319                            struct hda_codec *codec, hda_nid_t nid,
 320                            int *supports_vref)
 321 {
 322         static const char * const jack_conns[4] = {
 323                 "Jack", "N/A", "Fixed", "Both"
 324         };
 325         unsigned int caps, val;
 326
 327         caps = param_read(codec, nid, AC_PAR_PIN_CAP);
 328         snd_iprintf(buffer, "  Pincap 0x%08x:", caps);
 329         if (caps & AC_PINCAP_IN)
 330                 snd_iprintf(buffer, " IN");
 331         if (caps & AC_PINCAP_OUT)
 332                 snd_iprintf(buffer, " OUT");
 333         if (caps & AC_PINCAP_HP_DRV)
 334                 snd_iprintf(buffer, " HP");
 335         if (caps & AC_PINCAP_EAPD)
 336                 snd_iprintf(buffer, " EAPD");
 337         if (caps & AC_PINCAP_PRES_DETECT)
 338                 snd_iprintf(buffer, " Detect");
 339         if (caps & AC_PINCAP_BALANCE)
 340                 snd_iprintf(buffer, " Balanced");
 341         if (caps & AC_PINCAP_HDMI) {
 342                 /* Realtek uses this bit as a different meaning */
 343                 if ((codec->core.vendor_id >> 16) == 0x10ec)
 344                         snd_iprintf(buffer, " R/L");
 345                 else {
 346                         if (caps & AC_PINCAP_HBR)
 347                                 snd_iprintf(buffer, " HBR");
 348                         snd_iprintf(buffer, " HDMI");
 349                 }
 350         }
 351         if (caps & AC_PINCAP_DP)
 352                 snd_iprintf(buffer, " DP");
 353         if (caps & AC_PINCAP_TRIG_REQ)
 354                 snd_iprintf(buffer, " Trigger");
 355         if (caps & AC_PINCAP_IMP_SENSE)
 356                 snd_iprintf(buffer, " ImpSense");
 357         snd_iprintf(buffer, "\n");
 358         if (caps & AC_PINCAP_VREF) {
 359                 unsigned int vref =
 360                         (caps & AC_PINCAP_VREF) >> AC_PINCAP_VREF_SHIFT;
 361                 snd_iprintf(buffer, "    Vref caps:");
 362                 if (vref & AC_PINCAP_VREF_HIZ)
 363                         snd_iprintf(buffer, " HIZ");
 364                 if (vref & AC_PINCAP_VREF_50)
 365                         snd_iprintf(buffer, " 50");
 366                 if (vref & AC_PINCAP_VREF_GRD)
 367                         snd_iprintf(buffer, " GRD");
 368                 if (vref & AC_PINCAP_VREF_80)
 369                         snd_iprintf(buffer, " 80");
 370                 if (vref & AC_PINCAP_VREF_100)
 371                         snd_iprintf(buffer, " 100");
 372                 snd_iprintf(buffer, "\n");
 373                 *supports_vref = 1;
 374         } else
 375                 *supports_vref = 0;
 376         if (caps & AC_PINCAP_EAPD) {
 377                 val = snd_hda_codec_read(codec, nid, 0,
 378                                          AC_VERB_GET_EAPD_BTLENABLE, 0);
 379                 snd_iprintf(buffer, "  EAPD 0x%x:", val);
 380                 if (val & AC_EAPDBTL_BALANCED)
 381                         snd_iprintf(buffer, " BALANCED");
 382                 if (val & AC_EAPDBTL_EAPD)
 383                         snd_iprintf(buffer, " EAPD");
 384                 if (val & AC_EAPDBTL_LR_SWAP)
 385                         snd_iprintf(buffer, " R/L");
 386                 snd_iprintf(buffer, "\n");
 387         }
 388         caps = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONFIG_DEFAULT, 0);
 389         snd_iprintf(buffer, "  Pin Default 0x%08x: [%s] %s at %s %s\n", caps,
 390                     jack_conns[(caps & AC_DEFCFG_PORT_CONN) >> AC_DEFCFG_PORT_CONN_SHIFT],
 391                     get_jack_type(caps),
 392                     get_jack_connectivity(caps),
 393                     get_jack_location(caps));
 394         snd_iprintf(buffer, "    Conn = %s, Color = %s\n",
 395                     get_jack_connection(caps),
 396                     get_jack_color(caps));
 397         /* Default association and sequence values refer to default grouping
 398          * of pin complexes and their sequence within the group. This is used
 399          * for priority and resource allocation.
 400          */
 401         snd_iprintf(buffer, "    DefAssociation = 0x%x, Sequence = 0x%x\n",
 402                     (caps & AC_DEFCFG_DEF_ASSOC) >> AC_DEFCFG_ASSOC_SHIFT,
 403                     caps & AC_DEFCFG_SEQUENCE);
 404         if (((caps & AC_DEFCFG_MISC) >> AC_DEFCFG_MISC_SHIFT) &
 405             AC_DEFCFG_MISC_NO_PRESENCE) {
 406                 /* Miscellaneous bit indicates external hardware does not
 407                  * support presence detection even if the pin complex
 408                  * indicates it is supported.
 409                  */
 410                 snd_iprintf(buffer, "    Misc = NO_PRESENCE\n");
 411         }
 412 }
 413
 414 static void print_pin_ctls(struct snd_info_buffer *buffer,
 415                            struct hda_codec *codec, hda_nid_t nid,
 416                            int supports_vref)
 417 {
 418         unsigned int pinctls;
 419
 420         pinctls = snd_hda_codec_read(codec, nid, 0,
 421                                      AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
 422         snd_iprintf(buffer, "  Pin-ctls: 0x%02x:", pinctls);
 423         if (pinctls & AC_PINCTL_IN_EN)
 424                 snd_iprintf(buffer, " IN");
 425         if (pinctls & AC_PINCTL_OUT_EN)
 426                 snd_iprintf(buffer, " OUT");
 427         if (pinctls & AC_PINCTL_HP_EN)
 428                 snd_iprintf(buffer, " HP");
 429         if (supports_vref) {
 430                 int vref = pinctls & AC_PINCTL_VREFEN;
 431                 switch (vref) {
 432                 case AC_PINCTL_VREF_HIZ:
 433                         snd_iprintf(buffer, " VREF_HIZ");
 434                         break;
 435                 case AC_PINCTL_VREF_50:
 436                         snd_iprintf(buffer, " VREF_50");
 437                         break;
 438                 case AC_PINCTL_VREF_GRD:
 439                         snd_iprintf(buffer, " VREF_GRD");
 440                         break;
 441                 case AC_PINCTL_VREF_80:
 442                         snd_iprintf(buffer, " VREF_80");
 443                         break;
 444                 case AC_PINCTL_VREF_100:
 445                         snd_iprintf(buffer, " VREF_100");
 446                         break;
 447                 }
 448         }
 449         snd_iprintf(buffer, "\n");
 450 }
 451
 452 static void print_vol_knob(struct snd_info_buffer *buffer,
 453                            struct hda_codec *codec, hda_nid_t nid)
 454 {
 455         unsigned int cap = param_read(codec, nid, AC_PAR_VOL_KNB_CAP);
 456         snd_iprintf(buffer, "  Volume-Knob: delta=%d, steps=%d, ",
 457                     (cap >> 7) & 1, cap & 0x7f);
 458         cap = snd_hda_codec_read(codec, nid, 0,
 459                                  AC_VERB_GET_VOLUME_KNOB_CONTROL, 0);
 460         snd_iprintf(buffer, "direct=%d, val=%d\n",
 461                     (cap >> 7) & 1, cap & 0x7f);
 462 }
 463
 464 static void print_audio_io(struct snd_info_buffer *buffer,
 465                            struct hda_codec *codec, hda_nid_t nid,
 466                            unsigned int wid_type)
 467 {
 468         int conv = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONV, 0);
 469         snd_iprintf(buffer,
 470                     "  Converter: stream=%d, channel=%d\n",
 471                     (conv & AC_CONV_STREAM) >> AC_CONV_STREAM_SHIFT,
 472                     conv & AC_CONV_CHANNEL);
 473
 474         if (wid_type == AC_WID_AUD_IN && (conv & AC_CONV_CHANNEL) == 0) {
 475                 int sdi = snd_hda_codec_read(codec, nid, 0,
 476                                              AC_VERB_GET_SDI_SELECT, 0);
 477                 snd_iprintf(buffer, "  SDI-Select: %d\n",
 478                             sdi & AC_SDI_SELECT);
 479         }
 480 }
 481
 482 static void print_digital_conv(struct snd_info_buffer *buffer,
 483                                struct hda_codec *codec, hda_nid_t nid)
 484 {
 485         unsigned int digi1 = snd_hda_codec_read(codec, nid, 0,
 486                                                 AC_VERB_GET_DIGI_CONVERT_1, 0);
 487         unsigned char digi2 = digi1 >> 8;
 488         unsigned char digi3 = digi1 >> 16;
 489
 490         snd_iprintf(buffer, "  Digital:");
 491         if (digi1 & AC_DIG1_ENABLE)
 492                 snd_iprintf(buffer, " Enabled");
 493         if (digi1 & AC_DIG1_V)
 494                 snd_iprintf(buffer, " Validity");
 495         if (digi1 & AC_DIG1_VCFG)
 496                 snd_iprintf(buffer, " ValidityCfg");
 497         if (digi1 & AC_DIG1_EMPHASIS)
 498                 snd_iprintf(buffer, " Preemphasis");
 499         if (digi1 & AC_DIG1_COPYRIGHT)
 500                 snd_iprintf(buffer, " Non-Copyright");
 501         if (digi1 & AC_DIG1_NONAUDIO)
 502                 snd_iprintf(buffer, " Non-Audio");
 503         if (digi1 & AC_DIG1_PROFESSIONAL)
 504                 snd_iprintf(buffer, " Pro");
 505         if (digi1 & AC_DIG1_LEVEL)
 506                 snd_iprintf(buffer, " GenLevel");
 507         if (digi3 & AC_DIG3_KAE)
 508                 snd_iprintf(buffer, " KAE");
 509         snd_iprintf(buffer, "\n");
 510         snd_iprintf(buffer, "  Digital category: 0x%x\n",
 511                     digi2 & AC_DIG2_CC);
 512         snd_iprintf(buffer, "  IEC Coding Type: 0x%x\n",
 513                         digi3 & AC_DIG3_ICT);
 514 }
 515
 516 static const char *get_pwr_state(u32 state)
 517 {
 518         static const char * const buf[] = {
 519                 "D0", "D1", "D2", "D3", "D3cold"
 520         };
 521         if (state < ARRAY_SIZE(buf))
 522                 return buf[state];
 523         return "UNKNOWN";
 524 }
 525
 526 static void print_power_state(struct snd_info_buffer *buffer,
 527                               struct hda_codec *codec, hda_nid_t nid)
 528 {
 529         static const char * const names[] = {
 530                 [ilog2(AC_PWRST_D0SUP)]         = "D0",
 531                 [ilog2(AC_PWRST_D1SUP)]         = "D1",
 532                 [ilog2(AC_PWRST_D2SUP)]         = "D2",
 533                 [ilog2(AC_PWRST_D3SUP)]         = "D3",
 534                 [ilog2(AC_PWRST_D3COLDSUP)]     = "D3cold",
 535                 [ilog2(AC_PWRST_S3D3COLDSUP)]   = "S3D3cold",
 536                 [ilog2(AC_PWRST_CLKSTOP)]       = "CLKSTOP",
 537                 [ilog2(AC_PWRST_EPSS)]          = "EPSS",
 538         };
 539
 540         int sup = param_read(codec, nid, AC_PAR_POWER_STATE);
 541         int pwr = snd_hda_codec_read(codec, nid, 0,
 542                                      AC_VERB_GET_POWER_STATE, 0);
 543         if (sup != -1) {
 544                 int i;
 545
 546                 snd_iprintf(buffer, "  Power states: ");
 547                 for (i = 0; i < ARRAY_SIZE(names); i++) {
 548                         if (sup & (1U << i))
 549                                 snd_iprintf(buffer, " %s", names[i]);
 550                 }
 551                 snd_iprintf(buffer, "\n");
 552         }
 553
 554         snd_iprintf(buffer, "  Power: setting=%s, actual=%s",
 555                     get_pwr_state(pwr & AC_PWRST_SETTING),
 556                     get_pwr_state((pwr & AC_PWRST_ACTUAL) >>
 557                                   AC_PWRST_ACTUAL_SHIFT));
 558         if (pwr & AC_PWRST_ERROR)
 559                 snd_iprintf(buffer, ", Error");
 560         if (pwr & AC_PWRST_CLK_STOP_OK)
 561                 snd_iprintf(buffer, ", Clock-stop-OK");
 562         if (pwr & AC_PWRST_SETTING_RESET)
 563                 snd_iprintf(buffer, ", Setting-reset");
 564         snd_iprintf(buffer, "\n");
 565 }
 566
 567 static void print_unsol_cap(struct snd_info_buffer *buffer,
 568                               struct hda_codec *codec, hda_nid_t nid)
 569 {
 570         int unsol = snd_hda_codec_read(codec, nid, 0,
 571                                        AC_VERB_GET_UNSOLICITED_RESPONSE, 0);
 572         snd_iprintf(buffer,
 573                     "  Unsolicited: tag=%02x, enabled=%d\n",
 574                     unsol & AC_UNSOL_TAG,
 575                     (unsol & AC_UNSOL_ENABLED) ? 1 : 0);
 576 }
 577
 578 static inline bool can_dump_coef(struct hda_codec *codec)
 579 {
 580         switch (dump_coef) {
 581         case 0: return false;
 582         case 1: return true;
 583         default: return codec->dump_coef;
 584         }
 585 }
 586
 587 static void print_proc_caps(struct snd_info_buffer *buffer,
 588                             struct hda_codec *codec, hda_nid_t nid)
 589 {
 590         unsigned int i, ncoeff, oldindex;
 591         unsigned int proc_caps = param_read(codec, nid, AC_PAR_PROC_CAP);
 592         ncoeff = (proc_caps & AC_PCAP_NUM_COEF) >> AC_PCAP_NUM_COEF_SHIFT;
 593         snd_iprintf(buffer, "  Processing caps: benign=%d, ncoeff=%d\n",
 594                     proc_caps & AC_PCAP_BENIGN, ncoeff);
 595
 596         if (!can_dump_coef(codec))
 597                 return;
 598
 599         /* Note: This is racy - another process could run in parallel and change
 600            the coef index too. */
 601         oldindex = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_COEF_INDEX, 0);
 602         for (i = 0; i < ncoeff; i++) {
 603                 unsigned int val;
 604                 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_COEF_INDEX, i);
 605                 val = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_PROC_COEF,
 606                                          0);
 607                 snd_iprintf(buffer, "    Coeff 0x%02x: 0x%04x\n", i, val);
 608         }
 609         snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_COEF_INDEX, oldindex);
 610 }
 611
 612 static void print_conn_list(struct snd_info_buffer *buffer,
 613                             struct hda_codec *codec, hda_nid_t nid,
 614                             unsigned int wid_type, hda_nid_t *conn,
 615                             int conn_len)
 616 {
 617         int c, curr = -1;
 618         const hda_nid_t *list;
 619         int cache_len;
 620
 621         if (conn_len > 1 &&
 622             wid_type != AC_WID_AUD_MIX &&
 623             wid_type != AC_WID_VOL_KNB &&
 624             wid_type != AC_WID_POWER)
 625                 curr = snd_hda_codec_read(codec, nid, 0,
 626                                           AC_VERB_GET_CONNECT_SEL, 0);
 627         snd_iprintf(buffer, "  Connection: %d\n", conn_len);
 628         if (conn_len > 0) {
 629                 snd_iprintf(buffer, "    ");
 630                 for (c = 0; c < conn_len; c++) {
 631                         snd_iprintf(buffer, " 0x%02x", conn[c]);
 632                         if (c == curr)
 633                                 snd_iprintf(buffer, "*");
 634                 }
 635                 snd_iprintf(buffer, "\n");
 636         }
 637
 638         /* Get Cache connections info */
 639         cache_len = snd_hda_get_conn_list(codec, nid, &list);
 640         if (cache_len >= 0 && (cache_len != conn_len ||
 641                               memcmp(list, conn, conn_len) != 0)) {
 642                 snd_iprintf(buffer, "  In-driver Connection: %d\n", cache_len);
 643                 if (cache_len > 0) {
 644                         snd_iprintf(buffer, "    ");
 645                         for (c = 0; c < cache_len; c++)
 646                                 snd_iprintf(buffer, " 0x%02x", list[c]);
 647                         snd_iprintf(buffer, "\n");
 648                 }
 649         }
 650 }
 651
 652 static void print_gpio(struct snd_info_buffer *buffer,
 653                        struct hda_codec *codec, hda_nid_t nid)
 654 {
 655         unsigned int gpio =
 656                 param_read(codec, codec->core.afg, AC_PAR_GPIO_CAP);
 657         unsigned int enable, direction, wake, unsol, sticky, data;
 658         int i, max;
 659         snd_iprintf(buffer, "GPIO: io=%d, o=%d, i=%d, "
 660                     "unsolicited=%d, wake=%d\n",
 661                     gpio & AC_GPIO_IO_COUNT,
 662                     (gpio & AC_GPIO_O_COUNT) >> AC_GPIO_O_COUNT_SHIFT,
 663                     (gpio & AC_GPIO_I_COUNT) >> AC_GPIO_I_COUNT_SHIFT,
 664                     (gpio & AC_GPIO_UNSOLICITED) ? 1 : 0,
 665                     (gpio & AC_GPIO_WAKE) ? 1 : 0);
 666         max = gpio & AC_GPIO_IO_COUNT;
 667         if (!max || max > 8)
 668                 return;
 669         enable = snd_hda_codec_read(codec, nid, 0,
 670                                     AC_VERB_GET_GPIO_MASK, 0);
 671         direction = snd_hda_codec_read(codec, nid, 0,
 672                                        AC_VERB_GET_GPIO_DIRECTION, 0);
 673         wake = snd_hda_codec_read(codec, nid, 0,
 674                                   AC_VERB_GET_GPIO_WAKE_MASK, 0);
 675         unsol  = snd_hda_codec_read(codec, nid, 0,
 676                                     AC_VERB_GET_GPIO_UNSOLICITED_RSP_MASK, 0);
 677         sticky = snd_hda_codec_read(codec, nid, 0,
 678                                     AC_VERB_GET_GPIO_STICKY_MASK, 0);
 679         data = snd_hda_codec_read(codec, nid, 0,
 680                                   AC_VERB_GET_GPIO_DATA, 0);
 681         for (i = 0; i < max; ++i)
 682                 snd_iprintf(buffer,
 683                             "  IO[%d]: enable=%d, dir=%d, wake=%d, "
 684                             "sticky=%d, data=%d, unsol=%d\n", i,
 685                             (enable & (1<<i)) ? 1 : 0,
 686                             (direction & (1<<i)) ? 1 : 0,
 687                             (wake & (1<<i)) ? 1 : 0,
 688                             (sticky & (1<<i)) ? 1 : 0,
 689                             (data & (1<<i)) ? 1 : 0,
 690                             (unsol & (1<<i)) ? 1 : 0);
 691         /* FIXME: add GPO and GPI pin information */
 692         print_nid_array(buffer, codec, nid, &codec->mixers);
 693         print_nid_array(buffer, codec, nid, &codec->nids);
 694 }
 695
 696 static void print_device_list(struct snd_info_buffer *buffer,
 697                             struct hda_codec *codec, hda_nid_t nid)
 698 {
 699         int i, curr = -1;
 700         u8 dev_list[AC_MAX_DEV_LIST_LEN];
 701         int devlist_len;
 702
 703         devlist_len = snd_hda_get_devices(codec, nid, dev_list,
 704                                         AC_MAX_DEV_LIST_LEN);
 705         snd_iprintf(buffer, "  Devices: %d\n", devlist_len);
 706         if (devlist_len <= 0)
 707                 return;
 708
 709         curr = snd_hda_codec_read(codec, nid, 0,
 710                                 AC_VERB_GET_DEVICE_SEL, 0);
 711
 712         for (i = 0; i < devlist_len; i++) {
 713                 if (i == curr)
 714                         snd_iprintf(buffer, "    *");
 715                 else
 716                         snd_iprintf(buffer, "     ");
 717
 718                 snd_iprintf(buffer,
 719                         "Dev %02d: PD = %d, ELDV = %d, IA = %d\n", i,
 720                         !!(dev_list[i] & AC_DE_PD),
 721                         !!(dev_list[i] & AC_DE_ELDV),
 722                         !!(dev_list[i] & AC_DE_IA));
 723         }
 724 }
 725
 726 static void print_codec_core_info(struct hdac_device *codec,
 727                                   struct snd_info_buffer *buffer)
 728 {
 729         snd_iprintf(buffer, "Codec: ");
 730         if (codec->vendor_name && codec->chip_name)
 731                 snd_iprintf(buffer, "%s %s\n",
 732                             codec->vendor_name, codec->chip_name);
 733         else
 734                 snd_iprintf(buffer, "Not Set\n");
 735         snd_iprintf(buffer, "Address: %d\n", codec->addr);
 736         if (codec->afg)
 737                 snd_iprintf(buffer, "AFG Function Id: 0x%x (unsol %u)\n",
 738                         codec->afg_function_id, codec->afg_unsol);
 739         if (codec->mfg)
 740                 snd_iprintf(buffer, "MFG Function Id: 0x%x (unsol %u)\n",
 741                         codec->mfg_function_id, codec->mfg_unsol);
 742         snd_iprintf(buffer, "Vendor Id: 0x%08x\n", codec->vendor_id);
 743         snd_iprintf(buffer, "Subsystem Id: 0x%08x\n", codec->subsystem_id);
 744         snd_iprintf(buffer, "Revision Id: 0x%x\n", codec->revision_id);
 745
 746         if (codec->mfg)
 747                 snd_iprintf(buffer, "Modem Function Group: 0x%x\n", codec->mfg);
 748         else
 749                 snd_iprintf(buffer, "No Modem Function Group found\n");
 750 }
 751
 752 static void print_codec_info(struct snd_info_entry *entry,
 753                              struct snd_info_buffer *buffer)
 754 {
 755         struct hda_codec *codec = entry->private_data;
 756         hda_nid_t nid, fg;
 757         int i, nodes;
 758
 759         print_codec_core_info(&codec->core, buffer);
 760         fg = codec->core.afg;
 761         if (!fg)
 762                 return;
 763         snd_hda_power_up(codec);
 764         snd_iprintf(buffer, "Default PCM:\n");
 765         print_pcm_caps(buffer, codec, fg);
 766         snd_iprintf(buffer, "Default Amp-In caps: ");
 767         print_amp_caps(buffer, codec, fg, HDA_INPUT);
 768         snd_iprintf(buffer, "Default Amp-Out caps: ");
 769         print_amp_caps(buffer, codec, fg, HDA_OUTPUT);
 770         snd_iprintf(buffer, "State of AFG node 0x%02x:\n", fg);
 771         print_power_state(buffer, codec, fg);
 772
 773         nodes = snd_hda_get_sub_nodes(codec, fg, &nid);
 774         if (! nid || nodes < 0) {
 775                 snd_iprintf(buffer, "Invalid AFG subtree\n");
 776                 snd_hda_power_down(codec);
 777                 return;
 778         }
 779
 780         print_gpio(buffer, codec, fg);
 781         if (codec->proc_widget_hook)
 782                 codec->proc_widget_hook(buffer, codec, fg);
 783
 784         for (i = 0; i < nodes; i++, nid++) {
 785                 unsigned int wid_caps =
 786                         param_read(codec, nid, AC_PAR_AUDIO_WIDGET_CAP);
 787                 unsigned int wid_type = get_wcaps_type(wid_caps);
 788                 hda_nid_t *conn = NULL;
 789                 int conn_len = 0;
 790
 791                 snd_iprintf(buffer, "Node 0x%02x [%s] wcaps 0x%x:", nid,
 792                             get_wid_type_name(wid_type), wid_caps);
 793                 if (wid_caps & AC_WCAP_STEREO) {
 794                         unsigned int chans = get_wcaps_channels(wid_caps);
 795                         if (chans == 2)
 796                                 snd_iprintf(buffer, " Stereo");
 797                         else
 798                                 snd_iprintf(buffer, " %d-Channels", chans);
 799                 } else
 800                         snd_iprintf(buffer, " Mono");
 801                 if (wid_caps & AC_WCAP_DIGITAL)
 802                         snd_iprintf(buffer, " Digital");
 803                 if (wid_caps & AC_WCAP_IN_AMP)
 804                         snd_iprintf(buffer, " Amp-In");
 805                 if (wid_caps & AC_WCAP_OUT_AMP)
 806                         snd_iprintf(buffer, " Amp-Out");
 807                 if (wid_caps & AC_WCAP_STRIPE)
 808                         snd_iprintf(buffer, " Stripe");
 809                 if (wid_caps & AC_WCAP_LR_SWAP)
 810                         snd_iprintf(buffer, " R/L");
 811                 if (wid_caps & AC_WCAP_CP_CAPS)
 812                         snd_iprintf(buffer, " CP");
 813                 snd_iprintf(buffer, "\n");
 814
 815                 print_nid_array(buffer, codec, nid, &codec->mixers);
 816                 print_nid_array(buffer, codec, nid, &codec->nids);
 817                 print_nid_pcms(buffer, codec, nid);
 818
 819                 /* volume knob is a special widget that always have connection
 820                  * list
 821                  */
 822                 if (wid_type == AC_WID_VOL_KNB)
 823                         wid_caps |= AC_WCAP_CONN_LIST;
 824
 825                 if (wid_caps & AC_WCAP_CONN_LIST) {
 826                         conn_len = snd_hda_get_num_raw_conns(codec, nid);
 827                         if (conn_len > 0) {
 828                                 conn = kmalloc(sizeof(hda_nid_t) * conn_len,
 829                                                GFP_KERNEL);
 830                                 if (!conn)
 831                                         return;
 832                                 if (snd_hda_get_raw_connections(codec, nid, conn,
 833                                                                 conn_len) < 0)
 834                                         conn_len = 0;
 835                         }
 836                 }
 837
 838                 if (wid_caps & AC_WCAP_IN_AMP) {
 839                         snd_iprintf(buffer, "  Amp-In caps: ");
 840                         print_amp_caps(buffer, codec, nid, HDA_INPUT);
 841                         snd_iprintf(buffer, "  Amp-In vals: ");
 842                         if (wid_type == AC_WID_PIN ||
 843                             (codec->single_adc_amp &&
 844                              wid_type == AC_WID_AUD_IN))
 845                                 print_amp_vals(buffer, codec, nid, HDA_INPUT,
 846                                                wid_caps, 1);
 847                         else
 848                                 print_amp_vals(buffer, codec, nid, HDA_INPUT,
 849                                                wid_caps, conn_len);
 850                 }
 851                 if (wid_caps & AC_WCAP_OUT_AMP) {
 852                         snd_iprintf(buffer, "  Amp-Out caps: ");
 853                         print_amp_caps(buffer, codec, nid, HDA_OUTPUT);
 854                         snd_iprintf(buffer, "  Amp-Out vals: ");
 855                         if (wid_type == AC_WID_PIN &&
 856                             codec->pin_amp_workaround)
 857                                 print_amp_vals(buffer, codec, nid, HDA_OUTPUT,
 858                                                wid_caps, conn_len);
 859                         else
 860                                 print_amp_vals(buffer, codec, nid, HDA_OUTPUT,
 861                                                wid_caps, 1);
 862                 }
 863
 864                 switch (wid_type) {
 865                 case AC_WID_PIN: {
 866                         int supports_vref;
 867                         print_pin_caps(buffer, codec, nid, &supports_vref);
 868                         print_pin_ctls(buffer, codec, nid, supports_vref);
 869                         break;
 870                 }
 871                 case AC_WID_VOL_KNB:
 872                         print_vol_knob(buffer, codec, nid);
 873                         break;
 874                 case AC_WID_AUD_OUT:
 875                 case AC_WID_AUD_IN:
 876                         print_audio_io(buffer, codec, nid, wid_type);
 877                         if (wid_caps & AC_WCAP_DIGITAL)
 878                                 print_digital_conv(buffer, codec, nid);
 879                         if (wid_caps & AC_WCAP_FORMAT_OVRD) {
 880                                 snd_iprintf(buffer, "  PCM:\n");
 881                                 print_pcm_caps(buffer, codec, nid);
 882                         }
 883                         break;
 884                 }
 885
 886                 if (wid_caps & AC_WCAP_UNSOL_CAP)
 887                         print_unsol_cap(buffer, codec, nid);
 888
 889                 if (wid_caps & AC_WCAP_POWER)
 890                         print_power_state(buffer, codec, nid);
 891
 892                 if (wid_caps & AC_WCAP_DELAY)
 893                         snd_iprintf(buffer, "  Delay: %d samples\n",
 894                                     (wid_caps & AC_WCAP_DELAY) >>
 895                                     AC_WCAP_DELAY_SHIFT);
 896
 897                 if (wid_type == AC_WID_PIN && codec->dp_mst)
 898                         print_device_list(buffer, codec, nid);
 899
 900                 if (wid_caps & AC_WCAP_CONN_LIST)
 901                         print_conn_list(buffer, codec, nid, wid_type,
 902                                         conn, conn_len);
 903
 904                 if (wid_caps & AC_WCAP_PROC_WID)
 905                         print_proc_caps(buffer, codec, nid);
 906
 907                 if (codec->proc_widget_hook)
 908                         codec->proc_widget_hook(buffer, codec, nid);
 909
 910                 kfree(conn);
 911         }
 912         snd_hda_power_down(codec);
 913 }
 914
 915 /*
 916  * create a proc read
 917  */
 918 int snd_hda_codec_proc_new(struct hda_codec *codec)
 919 {
 920         char name[32];
 921         struct snd_info_entry *entry;
 922         int err;
 923
 924         snprintf(name, sizeof(name), "codec#%d", codec->core.addr);
 925         err = snd_card_proc_new(codec->card, name, &entry);
 926         if (err < 0)
 927                 return err;
 928
 929         snd_info_set_text_ops(entry, codec, print_codec_info);
 930         return 0;
 931 }
 932