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