git.oblomov.eu Git - linux-2.6/blob - sound/pci/hda/hda_proc.c

   1 /*
   2  * Universal Interface for Intel High Definition Audio Codec
   3  *
   4  * Generic proc interface
   5  *
   6  * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
   7  *
   8  *
   9  *  This driver is free software; you can redistribute it and/or modify
  10  *  it under the terms of the GNU General Public License as published by
  11  *  the Free Software Foundation; either version 2 of the License, or
  12  *  (at your option) any later version.
  13  *
  14  *  This driver is distributed in the hope that it will be useful,
  15  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  *  GNU General Public License for more details.
  18  *
  19  *  You should have received a copy of the GNU General Public License
  20  *  along with this program; if not, write to the Free Software
  21  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  22  */
  23
  24 #include <linux/init.h>
  25 #include <sound/core.h>
  26 #include "hda_codec.h"
  27 #include "hda_local.h"
  28
  29 static const char *get_wid_type_name(unsigned int wid_value)
  30 {
  31         static char *names[16] = {
  32                 [AC_WID_AUD_OUT] = "Audio Output",
  33                 [AC_WID_AUD_IN] = "Audio Input",
  34                 [AC_WID_AUD_MIX] = "Audio Mixer",
  35                 [AC_WID_AUD_SEL] = "Audio Selector",
  36                 [AC_WID_PIN] = "Pin Complex",
  37                 [AC_WID_POWER] = "Power Widget",
  38                 [AC_WID_VOL_KNB] = "Volume Knob Widget",
  39                 [AC_WID_BEEP] = "Beep Generator Widget",
  40                 [AC_WID_VENDOR] = "Vendor Defined Widget",
  41         };
  42         wid_value &= 0xf;
  43         if (names[wid_value])
  44                 return names[wid_value];
  45         else
  46                 return "UNKNOWN Widget";
  47 }
  48
  49 static void print_amp_caps(struct snd_info_buffer *buffer,
  50                            struct hda_codec *codec, hda_nid_t nid, int dir)
  51 {
  52         unsigned int caps;
  53         caps = snd_hda_param_read(codec, nid,
  54                                   dir == HDA_OUTPUT ?
  55                                     AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP);
  56         if (caps == -1 || caps == 0) {
  57                 snd_iprintf(buffer, "N/A\n");
  58                 return;
  59         }
  60         snd_iprintf(buffer, "ofs=0x%02x, nsteps=0x%02x, stepsize=0x%02x, "
  61                     "mute=%x\n",
  62                     caps & AC_AMPCAP_OFFSET,
  63                     (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT,
  64                     (caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT,
  65                     (caps & AC_AMPCAP_MUTE) >> AC_AMPCAP_MUTE_SHIFT);
  66 }
  67
  68 static void print_amp_vals(struct snd_info_buffer *buffer,
  69                            struct hda_codec *codec, hda_nid_t nid,
  70                            int dir, int stereo, int indices)
  71 {
  72         unsigned int val;
  73         int i;
  74
  75         dir = dir == HDA_OUTPUT ? AC_AMP_GET_OUTPUT : AC_AMP_GET_INPUT;
  76         for (i = 0; i < indices; i++) {
  77                 snd_iprintf(buffer, " [");
  78                 if (stereo) {
  79                         val = snd_hda_codec_read(codec, nid, 0,
  80                                                  AC_VERB_GET_AMP_GAIN_MUTE,
  81                                                  AC_AMP_GET_LEFT | dir | i);
  82                         snd_iprintf(buffer, "0x%02x ", val);
  83                 }
  84                 val = snd_hda_codec_read(codec, nid, 0,
  85                                          AC_VERB_GET_AMP_GAIN_MUTE,
  86                                          AC_AMP_GET_RIGHT | dir | i);
  87                 snd_iprintf(buffer, "0x%02x]", val);
  88         }
  89         snd_iprintf(buffer, "\n");
  90 }
  91
  92 static void print_pcm_rates(struct snd_info_buffer *buffer, unsigned int pcm)
  93 {
  94         char buf[SND_PRINT_RATES_ADVISED_BUFSIZE];
  95
  96         pcm &= AC_SUPPCM_RATES;
  97         snd_iprintf(buffer, "    rates [0x%x]:", pcm);
  98         snd_print_pcm_rates(pcm, buf, sizeof(buf));
  99         snd_iprintf(buffer, "%s\n", buf);
 100 }
 101
 102 static void print_pcm_bits(struct snd_info_buffer *buffer, unsigned int pcm)
 103 {
 104         char buf[SND_PRINT_BITS_ADVISED_BUFSIZE];
 105
 106         snd_iprintf(buffer, "    bits [0x%x]:", (pcm >> 16) & 0xff);
 107         snd_print_pcm_bits(pcm, buf, sizeof(buf));
 108         snd_iprintf(buffer, "%s\n", buf);
 109 }
 110
 111 static void print_pcm_formats(struct snd_info_buffer *buffer,
 112                               unsigned int streams)
 113 {
 114         snd_iprintf(buffer, "    formats [0x%x]:", streams & 0xf);
 115         if (streams & AC_SUPFMT_PCM)
 116                 snd_iprintf(buffer, " PCM");
 117         if (streams & AC_SUPFMT_FLOAT32)
 118                 snd_iprintf(buffer, " FLOAT");
 119         if (streams & AC_SUPFMT_AC3)
 120                 snd_iprintf(buffer, " AC3");
 121         snd_iprintf(buffer, "\n");
 122 }
 123
 124 static void print_pcm_caps(struct snd_info_buffer *buffer,
 125                            struct hda_codec *codec, hda_nid_t nid)
 126 {
 127         unsigned int pcm = snd_hda_param_read(codec, nid, AC_PAR_PCM);
 128         unsigned int stream = snd_hda_param_read(codec, nid, AC_PAR_STREAM);
 129         if (pcm == -1 || stream == -1) {
 130                 snd_iprintf(buffer, "N/A\n");
 131                 return;
 132         }
 133         print_pcm_rates(buffer, pcm);
 134         print_pcm_bits(buffer, pcm);
 135         print_pcm_formats(buffer, stream);
 136 }
 137
 138 static const char *get_jack_connection(u32 cfg)
 139 {
 140         static char *names[16] = {
 141                 "Unknown", "1/8", "1/4", "ATAPI",
 142                 "RCA", "Optical","Digital", "Analog",
 143                 "DIN", "XLR", "RJ11", "Comb",
 144                 NULL, NULL, NULL, "Other"
 145         };
 146         cfg = (cfg & AC_DEFCFG_CONN_TYPE) >> AC_DEFCFG_CONN_TYPE_SHIFT;
 147         if (names[cfg])
 148                 return names[cfg];
 149         else
 150                 return "UNKNOWN";
 151 }
 152
 153 static const char *get_jack_color(u32 cfg)
 154 {
 155         static char *names[16] = {
 156                 "Unknown", "Black", "Grey", "Blue",
 157                 "Green", "Red", "Orange", "Yellow",
 158                 "Purple", "Pink", NULL, NULL,
 159                 NULL, NULL, "White", "Other",
 160         };
 161         cfg = (cfg & AC_DEFCFG_COLOR) >> AC_DEFCFG_COLOR_SHIFT;
 162         if (names[cfg])
 163                 return names[cfg];
 164         else
 165                 return "UNKNOWN";
 166 }
 167
 168 static void print_pin_caps(struct snd_info_buffer *buffer,
 169                            struct hda_codec *codec, hda_nid_t nid,
 170                            int *supports_vref)
 171 {
 172         static char *jack_conns[4] = { "Jack", "N/A", "Fixed", "Both" };
 173         unsigned int caps, val;
 174
 175         caps = snd_hda_param_read(codec, nid, AC_PAR_PIN_CAP);
 176         snd_iprintf(buffer, "  Pincap 0x%08x:", caps);
 177         if (caps & AC_PINCAP_IN)
 178                 snd_iprintf(buffer, " IN");
 179         if (caps & AC_PINCAP_OUT)
 180                 snd_iprintf(buffer, " OUT");
 181         if (caps & AC_PINCAP_HP_DRV)
 182                 snd_iprintf(buffer, " HP");
 183         if (caps & AC_PINCAP_EAPD)
 184                 snd_iprintf(buffer, " EAPD");
 185         if (caps & AC_PINCAP_PRES_DETECT)
 186                 snd_iprintf(buffer, " Detect");
 187         if (caps & AC_PINCAP_BALANCE)
 188                 snd_iprintf(buffer, " Balanced");
 189         if (caps & AC_PINCAP_HDMI) {
 190                 /* Realtek uses this bit as a different meaning */
 191                 if ((codec->vendor_id >> 16) == 0x10ec)
 192                         snd_iprintf(buffer, " R/L");
 193                 else
 194                         snd_iprintf(buffer, " HDMI");
 195         }
 196         if (caps & AC_PINCAP_TRIG_REQ)
 197                 snd_iprintf(buffer, " Trigger");
 198         if (caps & AC_PINCAP_IMP_SENSE)
 199                 snd_iprintf(buffer, " ImpSense");
 200         snd_iprintf(buffer, "\n");
 201         if (caps & AC_PINCAP_VREF) {
 202                 unsigned int vref =
 203                         (caps & AC_PINCAP_VREF) >> AC_PINCAP_VREF_SHIFT;
 204                 snd_iprintf(buffer, "    Vref caps:");
 205                 if (vref & AC_PINCAP_VREF_HIZ)
 206                         snd_iprintf(buffer, " HIZ");
 207                 if (vref & AC_PINCAP_VREF_50)
 208                         snd_iprintf(buffer, " 50");
 209                 if (vref & AC_PINCAP_VREF_GRD)
 210                         snd_iprintf(buffer, " GRD");
 211                 if (vref & AC_PINCAP_VREF_80)
 212                         snd_iprintf(buffer, " 80");
 213                 if (vref & AC_PINCAP_VREF_100)
 214                         snd_iprintf(buffer, " 100");
 215                 snd_iprintf(buffer, "\n");
 216                 *supports_vref = 1;
 217         } else
 218                 *supports_vref = 0;
 219         if (caps & AC_PINCAP_EAPD) {
 220                 val = snd_hda_codec_read(codec, nid, 0,
 221                                          AC_VERB_GET_EAPD_BTLENABLE, 0);
 222                 snd_iprintf(buffer, "  EAPD 0x%x:", val);
 223                 if (val & AC_EAPDBTL_BALANCED)
 224                         snd_iprintf(buffer, " BALANCED");
 225                 if (val & AC_EAPDBTL_EAPD)
 226                         snd_iprintf(buffer, " EAPD");
 227                 if (val & AC_EAPDBTL_LR_SWAP)
 228                         snd_iprintf(buffer, " R/L");
 229                 snd_iprintf(buffer, "\n");
 230         }
 231         caps = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONFIG_DEFAULT, 0);
 232         snd_iprintf(buffer, "  Pin Default 0x%08x: [%s] %s at %s %s\n", caps,
 233                     jack_conns[(caps & AC_DEFCFG_PORT_CONN) >> AC_DEFCFG_PORT_CONN_SHIFT],
 234                     snd_hda_get_jack_type(caps),
 235                     snd_hda_get_jack_connectivity(caps),
 236                     snd_hda_get_jack_location(caps));
 237         snd_iprintf(buffer, "    Conn = %s, Color = %s\n",
 238                     get_jack_connection(caps),
 239                     get_jack_color(caps));
 240         /* Default association and sequence values refer to default grouping
 241          * of pin complexes and their sequence within the group. This is used
 242          * for priority and resource allocation.
 243          */
 244         snd_iprintf(buffer, "    DefAssociation = 0x%x, Sequence = 0x%x\n",
 245                     (caps & AC_DEFCFG_DEF_ASSOC) >> AC_DEFCFG_ASSOC_SHIFT,
 246                     caps & AC_DEFCFG_SEQUENCE);
 247         if (((caps & AC_DEFCFG_MISC) >> AC_DEFCFG_MISC_SHIFT) &
 248             AC_DEFCFG_MISC_NO_PRESENCE) {
 249                 /* Miscellaneous bit indicates external hardware does not
 250                  * support presence detection even if the pin complex
 251                  * indicates it is supported.
 252                  */
 253                 snd_iprintf(buffer, "    Misc = NO_PRESENCE\n");
 254         }
 255 }
 256
 257 static void print_pin_ctls(struct snd_info_buffer *buffer,
 258                            struct hda_codec *codec, hda_nid_t nid,
 259                            int supports_vref)
 260 {
 261         unsigned int pinctls;
 262
 263         pinctls = snd_hda_codec_read(codec, nid, 0,
 264                                      AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
 265         snd_iprintf(buffer, "  Pin-ctls: 0x%02x:", pinctls);
 266         if (pinctls & AC_PINCTL_IN_EN)
 267                 snd_iprintf(buffer, " IN");
 268         if (pinctls & AC_PINCTL_OUT_EN)
 269                 snd_iprintf(buffer, " OUT");
 270         if (pinctls & AC_PINCTL_HP_EN)
 271                 snd_iprintf(buffer, " HP");
 272         if (supports_vref) {
 273                 int vref = pinctls & AC_PINCTL_VREFEN;
 274                 switch (vref) {
 275                 case AC_PINCTL_VREF_HIZ:
 276                         snd_iprintf(buffer, " VREF_HIZ");
 277                         break;
 278                 case AC_PINCTL_VREF_50:
 279                         snd_iprintf(buffer, " VREF_50");
 280                         break;
 281                 case AC_PINCTL_VREF_GRD:
 282                         snd_iprintf(buffer, " VREF_GRD");
 283                         break;
 284                 case AC_PINCTL_VREF_80:
 285                         snd_iprintf(buffer, " VREF_80");
 286                         break;
 287                 case AC_PINCTL_VREF_100:
 288                         snd_iprintf(buffer, " VREF_100");
 289                         break;
 290                 }
 291         }
 292         snd_iprintf(buffer, "\n");
 293 }
 294
 295 static void print_vol_knob(struct snd_info_buffer *buffer,
 296                            struct hda_codec *codec, hda_nid_t nid)
 297 {
 298         unsigned int cap = snd_hda_param_read(codec, nid,
 299                                               AC_PAR_VOL_KNB_CAP);
 300         snd_iprintf(buffer, "  Volume-Knob: delta=%d, steps=%d, ",
 301                     (cap >> 7) & 1, cap & 0x7f);
 302         cap = snd_hda_codec_read(codec, nid, 0,
 303                                  AC_VERB_GET_VOLUME_KNOB_CONTROL, 0);
 304         snd_iprintf(buffer, "direct=%d, val=%d\n",
 305                     (cap >> 7) & 1, cap & 0x7f);
 306 }
 307
 308 static void print_audio_io(struct snd_info_buffer *buffer,
 309                            struct hda_codec *codec, hda_nid_t nid,
 310                            unsigned int wid_type)
 311 {
 312         int conv = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONV, 0);
 313         snd_iprintf(buffer,
 314                     "  Converter: stream=%d, channel=%d\n",
 315                     (conv & AC_CONV_STREAM) >> AC_CONV_STREAM_SHIFT,
 316                     conv & AC_CONV_CHANNEL);
 317
 318         if (wid_type == AC_WID_AUD_IN && (conv & AC_CONV_CHANNEL) == 0) {
 319                 int sdi = snd_hda_codec_read(codec, nid, 0,
 320                                              AC_VERB_GET_SDI_SELECT, 0);
 321                 snd_iprintf(buffer, "  SDI-Select: %d\n",
 322                             sdi & AC_SDI_SELECT);
 323         }
 324 }
 325
 326 static void print_digital_conv(struct snd_info_buffer *buffer,
 327                                struct hda_codec *codec, hda_nid_t nid)
 328 {
 329         unsigned int digi1 = snd_hda_codec_read(codec, nid, 0,
 330                                                 AC_VERB_GET_DIGI_CONVERT_1, 0);
 331         snd_iprintf(buffer, "  Digital:");
 332         if (digi1 & AC_DIG1_ENABLE)
 333                 snd_iprintf(buffer, " Enabled");
 334         if (digi1 & AC_DIG1_V)
 335                 snd_iprintf(buffer, " Validity");
 336         if (digi1 & AC_DIG1_VCFG)
 337                 snd_iprintf(buffer, " ValidityCfg");
 338         if (digi1 & AC_DIG1_EMPHASIS)
 339                 snd_iprintf(buffer, " Preemphasis");
 340         if (digi1 & AC_DIG1_COPYRIGHT)
 341                 snd_iprintf(buffer, " Copyright");
 342         if (digi1 & AC_DIG1_NONAUDIO)
 343                 snd_iprintf(buffer, " Non-Audio");
 344         if (digi1 & AC_DIG1_PROFESSIONAL)
 345                 snd_iprintf(buffer, " Pro");
 346         if (digi1 & AC_DIG1_LEVEL)
 347                 snd_iprintf(buffer, " GenLevel");
 348         snd_iprintf(buffer, "\n");
 349         snd_iprintf(buffer, "  Digital category: 0x%x\n",
 350                     (digi1 >> 8) & AC_DIG2_CC);
 351 }
 352
 353 static const char *get_pwr_state(u32 state)
 354 {
 355         static const char *buf[4] = {
 356                 "D0", "D1", "D2", "D3"
 357         };
 358         if (state < 4)
 359                 return buf[state];
 360         return "UNKNOWN";
 361 }
 362
 363 static void print_power_state(struct snd_info_buffer *buffer,
 364                               struct hda_codec *codec, hda_nid_t nid)
 365 {
 366         int pwr = snd_hda_codec_read(codec, nid, 0,
 367                                      AC_VERB_GET_POWER_STATE, 0);
 368         snd_iprintf(buffer, "  Power: setting=%s, actual=%s\n",
 369                     get_pwr_state(pwr & AC_PWRST_SETTING),
 370                     get_pwr_state((pwr & AC_PWRST_ACTUAL) >>
 371                                   AC_PWRST_ACTUAL_SHIFT));
 372 }
 373
 374 static void print_unsol_cap(struct snd_info_buffer *buffer,
 375                               struct hda_codec *codec, hda_nid_t nid)
 376 {
 377         int unsol = snd_hda_codec_read(codec, nid, 0,
 378                                        AC_VERB_GET_UNSOLICITED_RESPONSE, 0);
 379         snd_iprintf(buffer,
 380                     "  Unsolicited: tag=%02x, enabled=%d\n",
 381                     unsol & AC_UNSOL_TAG,
 382                     (unsol & AC_UNSOL_ENABLED) ? 1 : 0);
 383 }
 384
 385 static void print_proc_caps(struct snd_info_buffer *buffer,
 386                             struct hda_codec *codec, hda_nid_t nid)
 387 {
 388         unsigned int proc_caps = snd_hda_param_read(codec, nid,
 389                                                     AC_PAR_PROC_CAP);
 390         snd_iprintf(buffer, "  Processing caps: benign=%d, ncoeff=%d\n",
 391                     proc_caps & AC_PCAP_BENIGN,
 392                     (proc_caps & AC_PCAP_NUM_COEF) >> AC_PCAP_NUM_COEF_SHIFT);
 393 }
 394
 395 static void print_conn_list(struct snd_info_buffer *buffer,
 396                             struct hda_codec *codec, hda_nid_t nid,
 397                             unsigned int wid_type, hda_nid_t *conn,
 398                             int conn_len)
 399 {
 400         int c, curr = -1;
 401
 402         if (conn_len > 1 && wid_type != AC_WID_AUD_MIX)
 403                 curr = snd_hda_codec_read(codec, nid, 0,
 404                                           AC_VERB_GET_CONNECT_SEL, 0);
 405         snd_iprintf(buffer, "  Connection: %d\n", conn_len);
 406         if (conn_len > 0) {
 407                 snd_iprintf(buffer, "    ");
 408                 for (c = 0; c < conn_len; c++) {
 409                         snd_iprintf(buffer, " 0x%02x", conn[c]);
 410                         if (c == curr)
 411                                 snd_iprintf(buffer, "*");
 412                 }
 413                 snd_iprintf(buffer, "\n");
 414         }
 415 }
 416
 417 static void print_gpio(struct snd_info_buffer *buffer,
 418                        struct hda_codec *codec, hda_nid_t nid)
 419 {
 420         unsigned int gpio =
 421                 snd_hda_param_read(codec, codec->afg, AC_PAR_GPIO_CAP);
 422         unsigned int enable, direction, wake, unsol, sticky, data;
 423         int i, max;
 424         snd_iprintf(buffer, "GPIO: io=%d, o=%d, i=%d, "
 425                     "unsolicited=%d, wake=%d\n",
 426                     gpio & AC_GPIO_IO_COUNT,
 427                     (gpio & AC_GPIO_O_COUNT) >> AC_GPIO_O_COUNT_SHIFT,
 428                     (gpio & AC_GPIO_I_COUNT) >> AC_GPIO_I_COUNT_SHIFT,
 429                     (gpio & AC_GPIO_UNSOLICITED) ? 1 : 0,
 430                     (gpio & AC_GPIO_WAKE) ? 1 : 0);
 431         max = gpio & AC_GPIO_IO_COUNT;
 432         if (!max || max > 8)
 433                 return;
 434         enable = snd_hda_codec_read(codec, nid, 0,
 435                                     AC_VERB_GET_GPIO_MASK, 0);
 436         direction = snd_hda_codec_read(codec, nid, 0,
 437                                        AC_VERB_GET_GPIO_DIRECTION, 0);
 438         wake = snd_hda_codec_read(codec, nid, 0,
 439                                   AC_VERB_GET_GPIO_WAKE_MASK, 0);
 440         unsol  = snd_hda_codec_read(codec, nid, 0,
 441                                     AC_VERB_GET_GPIO_UNSOLICITED_RSP_MASK, 0);
 442         sticky = snd_hda_codec_read(codec, nid, 0,
 443                                     AC_VERB_GET_GPIO_STICKY_MASK, 0);
 444         data = snd_hda_codec_read(codec, nid, 0,
 445                                   AC_VERB_GET_GPIO_DATA, 0);
 446         for (i = 0; i < max; ++i)
 447                 snd_iprintf(buffer,
 448                             "  IO[%d]: enable=%d, dir=%d, wake=%d, "
 449                             "sticky=%d, data=%d, unsol=%d\n", i,
 450                             (enable & (1<<i)) ? 1 : 0,
 451                             (direction & (1<<i)) ? 1 : 0,
 452                             (wake & (1<<i)) ? 1 : 0,
 453                             (sticky & (1<<i)) ? 1 : 0,
 454                             (data & (1<<i)) ? 1 : 0,
 455                             (unsol & (1<<i)) ? 1 : 0);
 456         /* FIXME: add GPO and GPI pin information */
 457 }
 458
 459 static void print_codec_info(struct snd_info_entry *entry,
 460                              struct snd_info_buffer *buffer)
 461 {
 462         struct hda_codec *codec = entry->private_data;
 463         hda_nid_t nid;
 464         int i, nodes;
 465
 466         snd_iprintf(buffer, "Codec: %s\n",
 467                     codec->name ? codec->name : "Not Set");
 468         snd_iprintf(buffer, "Address: %d\n", codec->addr);
 469         snd_iprintf(buffer, "Vendor Id: 0x%x\n", codec->vendor_id);
 470         snd_iprintf(buffer, "Subsystem Id: 0x%x\n", codec->subsystem_id);
 471         snd_iprintf(buffer, "Revision Id: 0x%x\n", codec->revision_id);
 472
 473         if (codec->mfg)
 474                 snd_iprintf(buffer, "Modem Function Group: 0x%x\n", codec->mfg);
 475         else
 476                 snd_iprintf(buffer, "No Modem Function Group found\n");
 477
 478         if (! codec->afg)
 479                 return;
 480         snd_hda_power_up(codec);
 481         snd_iprintf(buffer, "Default PCM:\n");
 482         print_pcm_caps(buffer, codec, codec->afg);
 483         snd_iprintf(buffer, "Default Amp-In caps: ");
 484         print_amp_caps(buffer, codec, codec->afg, HDA_INPUT);
 485         snd_iprintf(buffer, "Default Amp-Out caps: ");
 486         print_amp_caps(buffer, codec, codec->afg, HDA_OUTPUT);
 487
 488         nodes = snd_hda_get_sub_nodes(codec, codec->afg, &nid);
 489         if (! nid || nodes < 0) {
 490                 snd_iprintf(buffer, "Invalid AFG subtree\n");
 491                 snd_hda_power_down(codec);
 492                 return;
 493         }
 494
 495         print_gpio(buffer, codec, codec->afg);
 496         if (codec->proc_widget_hook)
 497                 codec->proc_widget_hook(buffer, codec, codec->afg);
 498
 499         for (i = 0; i < nodes; i++, nid++) {
 500                 unsigned int wid_caps =
 501                         snd_hda_param_read(codec, nid,
 502                                            AC_PAR_AUDIO_WIDGET_CAP);
 503                 unsigned int wid_type =
 504                         (wid_caps & AC_WCAP_TYPE) >> AC_WCAP_TYPE_SHIFT;
 505                 hda_nid_t conn[HDA_MAX_CONNECTIONS];
 506                 int conn_len = 0;
 507
 508                 snd_iprintf(buffer, "Node 0x%02x [%s] wcaps 0x%x:", nid,
 509                             get_wid_type_name(wid_type), wid_caps);
 510                 if (wid_caps & AC_WCAP_STEREO) {
 511                         unsigned int chans;
 512                         chans = (wid_caps & AC_WCAP_CHAN_CNT_EXT) >> 13;
 513                         chans = ((chans << 1) | 1) + 1;
 514                         if (chans == 2)
 515                                 snd_iprintf(buffer, " Stereo");
 516                         else
 517                                 snd_iprintf(buffer, " %d-Channels", chans);
 518                 } else
 519                         snd_iprintf(buffer, " Mono");
 520                 if (wid_caps & AC_WCAP_DIGITAL)
 521                         snd_iprintf(buffer, " Digital");
 522                 if (wid_caps & AC_WCAP_IN_AMP)
 523                         snd_iprintf(buffer, " Amp-In");
 524                 if (wid_caps & AC_WCAP_OUT_AMP)
 525                         snd_iprintf(buffer, " Amp-Out");
 526                 if (wid_caps & AC_WCAP_STRIPE)
 527                         snd_iprintf(buffer, " Stripe");
 528                 if (wid_caps & AC_WCAP_LR_SWAP)
 529                         snd_iprintf(buffer, " R/L");
 530                 if (wid_caps & AC_WCAP_CP_CAPS)
 531                         snd_iprintf(buffer, " CP");
 532                 snd_iprintf(buffer, "\n");
 533
 534                 /* volume knob is a special widget that always have connection
 535                  * list
 536                  */
 537                 if (wid_type == AC_WID_VOL_KNB)
 538                         wid_caps |= AC_WCAP_CONN_LIST;
 539
 540                 if (wid_caps & AC_WCAP_CONN_LIST)
 541                         conn_len = snd_hda_get_connections(codec, nid, conn,
 542                                                            HDA_MAX_CONNECTIONS);
 543
 544                 if (wid_caps & AC_WCAP_IN_AMP) {
 545                         snd_iprintf(buffer, "  Amp-In caps: ");
 546                         print_amp_caps(buffer, codec, nid, HDA_INPUT);
 547                         snd_iprintf(buffer, "  Amp-In vals: ");
 548                         print_amp_vals(buffer, codec, nid, HDA_INPUT,
 549                                        wid_caps & AC_WCAP_STEREO,
 550                                        wid_type == AC_WID_PIN ? 1 : conn_len);
 551                 }
 552                 if (wid_caps & AC_WCAP_OUT_AMP) {
 553                         snd_iprintf(buffer, "  Amp-Out caps: ");
 554                         print_amp_caps(buffer, codec, nid, HDA_OUTPUT);
 555                         snd_iprintf(buffer, "  Amp-Out vals: ");
 556                         print_amp_vals(buffer, codec, nid, HDA_OUTPUT,
 557                                        wid_caps & AC_WCAP_STEREO, 1);
 558                 }
 559
 560                 switch (wid_type) {
 561                 case AC_WID_PIN: {
 562                         int supports_vref;
 563                         print_pin_caps(buffer, codec, nid, &supports_vref);
 564                         print_pin_ctls(buffer, codec, nid, supports_vref);
 565                         break;
 566                 }
 567                 case AC_WID_VOL_KNB:
 568                         print_vol_knob(buffer, codec, nid);
 569                         break;
 570                 case AC_WID_AUD_OUT:
 571                 case AC_WID_AUD_IN:
 572                         print_audio_io(buffer, codec, nid, wid_type);
 573                         if (wid_caps & AC_WCAP_DIGITAL)
 574                                 print_digital_conv(buffer, codec, nid);
 575                         if (wid_caps & AC_WCAP_FORMAT_OVRD) {
 576                                 snd_iprintf(buffer, "  PCM:\n");
 577                                 print_pcm_caps(buffer, codec, nid);
 578                         }
 579                         break;
 580                 }
 581
 582                 if (wid_caps & AC_WCAP_UNSOL_CAP)
 583                         print_unsol_cap(buffer, codec, nid);
 584
 585                 if (wid_caps & AC_WCAP_POWER)
 586                         print_power_state(buffer, codec, nid);
 587
 588                 if (wid_caps & AC_WCAP_DELAY)
 589                         snd_iprintf(buffer, "  Delay: %d samples\n",
 590                                     (wid_caps & AC_WCAP_DELAY) >>
 591                                     AC_WCAP_DELAY_SHIFT);
 592
 593                 if (wid_caps & AC_WCAP_CONN_LIST)
 594                         print_conn_list(buffer, codec, nid, wid_type,
 595                                         conn, conn_len);
 596
 597                 if (wid_caps & AC_WCAP_PROC_WID)
 598                         print_proc_caps(buffer, codec, nid);
 599
 600                 if (codec->proc_widget_hook)
 601                         codec->proc_widget_hook(buffer, codec, nid);
 602         }
 603         snd_hda_power_down(codec);
 604 }
 605
 606 /*
 607  * create a proc read
 608  */
 609 int snd_hda_codec_proc_new(struct hda_codec *codec)
 610 {
 611         char name[32];
 612         struct snd_info_entry *entry;
 613         int err;
 614
 615         snprintf(name, sizeof(name), "codec#%d", codec->addr);
 616         err = snd_card_proc_new(codec->bus->card, name, &entry);
 617         if (err < 0)
 618                 return err;
 619
 620         snd_info_set_text_ops(entry, codec, print_codec_info);
 621         return 0;
 622 }
 623