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 void snd_print_pcm_rates(int pcm, char *buf, int buflen)
  93 {
  94         static unsigned int rates[] = {
  95                 8000, 11025, 16000, 22050, 32000, 44100, 48000, 88200,
  96                 96000, 176400, 192000, 384000
  97         };
  98         int i, j;
  99
 100         for (i = 0, j = 0; i < ARRAY_SIZE(rates); i++)
 101                 if (pcm & (1 << i))
 102                         j += snprintf(buf + j, buflen - j,  " %d", rates[i]);
 103
 104         buf[j] = '\0'; /* necessary when j == 0 */
 105 }
 106
 107 static void print_pcm_rates(struct snd_info_buffer *buffer, unsigned int pcm)
 108 {
 109         char buf[SND_PRINT_RATES_ADVISED_BUFSIZE];
 110         pcm &= AC_SUPPCM_RATES;
 111         snd_iprintf(buffer, "    rates [0x%x]:", pcm);
 112         snd_print_pcm_rates(pcm, buf, sizeof(buf));
 113         snd_iprintf(buffer, "%s\n", buf);
 114 }
 115
 116 static void print_pcm_bits(struct snd_info_buffer *buffer, unsigned int pcm)
 117 {
 118         static unsigned int bits[] = { 8, 16, 20, 24, 32 };
 119         int i;
 120
 121         pcm = (pcm >> 16) & 0xff;
 122         snd_iprintf(buffer, "    bits [0x%x]:", pcm);
 123         for (i = 0; i < ARRAY_SIZE(bits); i++)
 124                 if (pcm & (1 << i))
 125                         snd_iprintf(buffer, " %d", bits[i]);
 126         snd_iprintf(buffer, "\n");
 127 }
 128
 129 static void print_pcm_formats(struct snd_info_buffer *buffer,
 130                               unsigned int streams)
 131 {
 132         snd_iprintf(buffer, "    formats [0x%x]:", streams & 0xf);
 133         if (streams & AC_SUPFMT_PCM)
 134                 snd_iprintf(buffer, " PCM");
 135         if (streams & AC_SUPFMT_FLOAT32)
 136                 snd_iprintf(buffer, " FLOAT");
 137         if (streams & AC_SUPFMT_AC3)
 138                 snd_iprintf(buffer, " AC3");
 139         snd_iprintf(buffer, "\n");
 140 }
 141
 142 static void print_pcm_caps(struct snd_info_buffer *buffer,
 143                            struct hda_codec *codec, hda_nid_t nid)
 144 {
 145         unsigned int pcm = snd_hda_param_read(codec, nid, AC_PAR_PCM);
 146         unsigned int stream = snd_hda_param_read(codec, nid, AC_PAR_STREAM);
 147         if (pcm == -1 || stream == -1) {
 148                 snd_iprintf(buffer, "N/A\n");
 149                 return;
 150         }
 151         print_pcm_rates(buffer, pcm);
 152         print_pcm_bits(buffer, pcm);
 153         print_pcm_formats(buffer, stream);
 154 }
 155
 156 static const char *get_jack_connection(u32 cfg)
 157 {
 158         static char *names[16] = {
 159                 "Unknown", "1/8", "1/4", "ATAPI",
 160                 "RCA", "Optical","Digital", "Analog",
 161                 "DIN", "XLR", "RJ11", "Comb",
 162                 NULL, NULL, NULL, "Other"
 163         };
 164         cfg = (cfg & AC_DEFCFG_CONN_TYPE) >> AC_DEFCFG_CONN_TYPE_SHIFT;
 165         if (names[cfg])
 166                 return names[cfg];
 167         else
 168                 return "UNKNOWN";
 169 }
 170
 171 static const char *get_jack_color(u32 cfg)
 172 {
 173         static char *names[16] = {
 174                 "Unknown", "Black", "Grey", "Blue",
 175                 "Green", "Red", "Orange", "Yellow",
 176                 "Purple", "Pink", NULL, NULL,
 177                 NULL, NULL, "White", "Other",
 178         };
 179         cfg = (cfg & AC_DEFCFG_COLOR) >> AC_DEFCFG_COLOR_SHIFT;
 180         if (names[cfg])
 181                 return names[cfg];
 182         else
 183                 return "UNKNOWN";
 184 }
 185
 186 static void print_pin_caps(struct snd_info_buffer *buffer,
 187                            struct hda_codec *codec, hda_nid_t nid,
 188                            int *supports_vref)
 189 {
 190         static char *jack_conns[4] = { "Jack", "N/A", "Fixed", "Both" };
 191         unsigned int caps, val;
 192
 193         caps = snd_hda_param_read(codec, nid, AC_PAR_PIN_CAP);
 194         snd_iprintf(buffer, "  Pincap 0x%08x:", caps);
 195         if (caps & AC_PINCAP_IN)
 196                 snd_iprintf(buffer, " IN");
 197         if (caps & AC_PINCAP_OUT)
 198                 snd_iprintf(buffer, " OUT");
 199         if (caps & AC_PINCAP_HP_DRV)
 200                 snd_iprintf(buffer, " HP");
 201         if (caps & AC_PINCAP_EAPD)
 202                 snd_iprintf(buffer, " EAPD");
 203         if (caps & AC_PINCAP_PRES_DETECT)
 204                 snd_iprintf(buffer, " Detect");
 205         if (caps & AC_PINCAP_BALANCE)
 206                 snd_iprintf(buffer, " Balanced");
 207         if (caps & AC_PINCAP_HDMI) {
 208                 /* Realtek uses this bit as a different meaning */
 209                 if ((codec->vendor_id >> 16) == 0x10ec)
 210                         snd_iprintf(buffer, " R/L");
 211                 else
 212                         snd_iprintf(buffer, " HDMI");
 213         }
 214         if (caps & AC_PINCAP_TRIG_REQ)
 215                 snd_iprintf(buffer, " Trigger");
 216         if (caps & AC_PINCAP_IMP_SENSE)
 217                 snd_iprintf(buffer, " ImpSense");
 218         snd_iprintf(buffer, "\n");
 219         if (caps & AC_PINCAP_VREF) {
 220                 unsigned int vref =
 221                         (caps & AC_PINCAP_VREF) >> AC_PINCAP_VREF_SHIFT;
 222                 snd_iprintf(buffer, "    Vref caps:");
 223                 if (vref & AC_PINCAP_VREF_HIZ)
 224                         snd_iprintf(buffer, " HIZ");
 225                 if (vref & AC_PINCAP_VREF_50)
 226                         snd_iprintf(buffer, " 50");
 227                 if (vref & AC_PINCAP_VREF_GRD)
 228                         snd_iprintf(buffer, " GRD");
 229                 if (vref & AC_PINCAP_VREF_80)
 230                         snd_iprintf(buffer, " 80");
 231                 if (vref & AC_PINCAP_VREF_100)
 232                         snd_iprintf(buffer, " 100");
 233                 snd_iprintf(buffer, "\n");
 234                 *supports_vref = 1;
 235         } else
 236                 *supports_vref = 0;
 237         if (caps & AC_PINCAP_EAPD) {
 238                 val = snd_hda_codec_read(codec, nid, 0,
 239                                          AC_VERB_GET_EAPD_BTLENABLE, 0);
 240                 snd_iprintf(buffer, "  EAPD 0x%x:", val);
 241                 if (val & AC_EAPDBTL_BALANCED)
 242                         snd_iprintf(buffer, " BALANCED");
 243                 if (val & AC_EAPDBTL_EAPD)
 244                         snd_iprintf(buffer, " EAPD");
 245                 if (val & AC_EAPDBTL_LR_SWAP)
 246                         snd_iprintf(buffer, " R/L");
 247                 snd_iprintf(buffer, "\n");
 248         }
 249         caps = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONFIG_DEFAULT, 0);
 250         snd_iprintf(buffer, "  Pin Default 0x%08x: [%s] %s at %s %s\n", caps,
 251                     jack_conns[(caps & AC_DEFCFG_PORT_CONN) >> AC_DEFCFG_PORT_CONN_SHIFT],
 252                     snd_hda_get_jack_type(caps),
 253                     snd_hda_get_jack_connectivity(caps),
 254                     snd_hda_get_jack_location(caps));
 255         snd_iprintf(buffer, "    Conn = %s, Color = %s\n",
 256                     get_jack_connection(caps),
 257                     get_jack_color(caps));
 258         /* Default association and sequence values refer to default grouping
 259          * of pin complexes and their sequence within the group. This is used
 260          * for priority and resource allocation.
 261          */
 262         snd_iprintf(buffer, "    DefAssociation = 0x%x, Sequence = 0x%x\n",
 263                     (caps & AC_DEFCFG_DEF_ASSOC) >> AC_DEFCFG_ASSOC_SHIFT,
 264                     caps & AC_DEFCFG_SEQUENCE);
 265         if (((caps & AC_DEFCFG_MISC) >> AC_DEFCFG_MISC_SHIFT) &
 266             AC_DEFCFG_MISC_NO_PRESENCE) {
 267                 /* Miscellaneous bit indicates external hardware does not
 268                  * support presence detection even if the pin complex
 269                  * indicates it is supported.
 270                  */
 271                 snd_iprintf(buffer, "    Misc = NO_PRESENCE\n");
 272         }
 273 }
 274
 275 static void print_pin_ctls(struct snd_info_buffer *buffer,
 276                            struct hda_codec *codec, hda_nid_t nid,
 277                            int supports_vref)
 278 {
 279         unsigned int pinctls;
 280
 281         pinctls = snd_hda_codec_read(codec, nid, 0,
 282                                      AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
 283         snd_iprintf(buffer, "  Pin-ctls: 0x%02x:", pinctls);
 284         if (pinctls & AC_PINCTL_IN_EN)
 285                 snd_iprintf(buffer, " IN");
 286         if (pinctls & AC_PINCTL_OUT_EN)
 287                 snd_iprintf(buffer, " OUT");
 288         if (pinctls & AC_PINCTL_HP_EN)
 289                 snd_iprintf(buffer, " HP");
 290         if (supports_vref) {
 291                 int vref = pinctls & AC_PINCTL_VREFEN;
 292                 switch (vref) {
 293                 case AC_PINCTL_VREF_HIZ:
 294                         snd_iprintf(buffer, " VREF_HIZ");
 295                         break;
 296                 case AC_PINCTL_VREF_50:
 297                         snd_iprintf(buffer, " VREF_50");
 298                         break;
 299                 case AC_PINCTL_VREF_GRD:
 300                         snd_iprintf(buffer, " VREF_GRD");
 301                         break;
 302                 case AC_PINCTL_VREF_80:
 303                         snd_iprintf(buffer, " VREF_80");
 304                         break;
 305                 case AC_PINCTL_VREF_100:
 306                         snd_iprintf(buffer, " VREF_100");
 307                         break;
 308                 }
 309         }
 310         snd_iprintf(buffer, "\n");
 311 }
 312
 313 static void print_vol_knob(struct snd_info_buffer *buffer,
 314                            struct hda_codec *codec, hda_nid_t nid)
 315 {
 316         unsigned int cap = snd_hda_param_read(codec, nid,
 317                                               AC_PAR_VOL_KNB_CAP);
 318         snd_iprintf(buffer, "  Volume-Knob: delta=%d, steps=%d, ",
 319                     (cap >> 7) & 1, cap & 0x7f);
 320         cap = snd_hda_codec_read(codec, nid, 0,
 321                                  AC_VERB_GET_VOLUME_KNOB_CONTROL, 0);
 322         snd_iprintf(buffer, "direct=%d, val=%d\n",
 323                     (cap >> 7) & 1, cap & 0x7f);
 324 }
 325
 326 static void print_audio_io(struct snd_info_buffer *buffer,
 327                            struct hda_codec *codec, hda_nid_t nid,
 328                            unsigned int wid_type)
 329 {
 330         int conv = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONV, 0);
 331         snd_iprintf(buffer,
 332                     "  Converter: stream=%d, channel=%d\n",
 333                     (conv & AC_CONV_STREAM) >> AC_CONV_STREAM_SHIFT,
 334                     conv & AC_CONV_CHANNEL);
 335
 336         if (wid_type == AC_WID_AUD_IN && (conv & AC_CONV_CHANNEL) == 0) {
 337                 int sdi = snd_hda_codec_read(codec, nid, 0,
 338                                              AC_VERB_GET_SDI_SELECT, 0);
 339                 snd_iprintf(buffer, "  SDI-Select: %d\n",
 340                             sdi & AC_SDI_SELECT);
 341         }
 342 }
 343
 344 static void print_digital_conv(struct snd_info_buffer *buffer,
 345                                struct hda_codec *codec, hda_nid_t nid)
 346 {
 347         unsigned int digi1 = snd_hda_codec_read(codec, nid, 0,
 348                                                 AC_VERB_GET_DIGI_CONVERT_1, 0);
 349         snd_iprintf(buffer, "  Digital:");
 350         if (digi1 & AC_DIG1_ENABLE)
 351                 snd_iprintf(buffer, " Enabled");
 352         if (digi1 & AC_DIG1_V)
 353                 snd_iprintf(buffer, " Validity");
 354         if (digi1 & AC_DIG1_VCFG)
 355                 snd_iprintf(buffer, " ValidityCfg");
 356         if (digi1 & AC_DIG1_EMPHASIS)
 357                 snd_iprintf(buffer, " Preemphasis");
 358         if (digi1 & AC_DIG1_COPYRIGHT)
 359                 snd_iprintf(buffer, " Copyright");
 360         if (digi1 & AC_DIG1_NONAUDIO)
 361                 snd_iprintf(buffer, " Non-Audio");
 362         if (digi1 & AC_DIG1_PROFESSIONAL)
 363                 snd_iprintf(buffer, " Pro");
 364         if (digi1 & AC_DIG1_LEVEL)
 365                 snd_iprintf(buffer, " GenLevel");
 366         snd_iprintf(buffer, "\n");
 367         snd_iprintf(buffer, "  Digital category: 0x%x\n",
 368                     (digi1 >> 8) & AC_DIG2_CC);
 369 }
 370
 371 static const char *get_pwr_state(u32 state)
 372 {
 373         static const char *buf[4] = {
 374                 "D0", "D1", "D2", "D3"
 375         };
 376         if (state < 4)
 377                 return buf[state];
 378         return "UNKNOWN";
 379 }
 380
 381 static void print_power_state(struct snd_info_buffer *buffer,
 382                               struct hda_codec *codec, hda_nid_t nid)
 383 {
 384         int pwr = snd_hda_codec_read(codec, nid, 0,
 385                                      AC_VERB_GET_POWER_STATE, 0);
 386         snd_iprintf(buffer, "  Power: setting=%s, actual=%s\n",
 387                     get_pwr_state(pwr & AC_PWRST_SETTING),
 388                     get_pwr_state((pwr & AC_PWRST_ACTUAL) >>
 389                                   AC_PWRST_ACTUAL_SHIFT));
 390 }
 391
 392 static void print_unsol_cap(struct snd_info_buffer *buffer,
 393                               struct hda_codec *codec, hda_nid_t nid)
 394 {
 395         int unsol = snd_hda_codec_read(codec, nid, 0,
 396                                        AC_VERB_GET_UNSOLICITED_RESPONSE, 0);
 397         snd_iprintf(buffer,
 398                     "  Unsolicited: tag=%02x, enabled=%d\n",
 399                     unsol & AC_UNSOL_TAG,
 400                     (unsol & AC_UNSOL_ENABLED) ? 1 : 0);
 401 }
 402
 403 static void print_proc_caps(struct snd_info_buffer *buffer,
 404                             struct hda_codec *codec, hda_nid_t nid)
 405 {
 406         unsigned int proc_caps = snd_hda_param_read(codec, nid,
 407                                                     AC_PAR_PROC_CAP);
 408         snd_iprintf(buffer, "  Processing caps: benign=%d, ncoeff=%d\n",
 409                     proc_caps & AC_PCAP_BENIGN,
 410                     (proc_caps & AC_PCAP_NUM_COEF) >> AC_PCAP_NUM_COEF_SHIFT);
 411 }
 412
 413 static void print_conn_list(struct snd_info_buffer *buffer,
 414                             struct hda_codec *codec, hda_nid_t nid,
 415                             unsigned int wid_type, hda_nid_t *conn,
 416                             int conn_len)
 417 {
 418         int c, curr = -1;
 419
 420         if (conn_len > 1 && wid_type != AC_WID_AUD_MIX)
 421                 curr = snd_hda_codec_read(codec, nid, 0,
 422                                           AC_VERB_GET_CONNECT_SEL, 0);
 423         snd_iprintf(buffer, "  Connection: %d\n", conn_len);
 424         if (conn_len > 0) {
 425                 snd_iprintf(buffer, "    ");
 426                 for (c = 0; c < conn_len; c++) {
 427                         snd_iprintf(buffer, " 0x%02x", conn[c]);
 428                         if (c == curr)
 429                                 snd_iprintf(buffer, "*");
 430                 }
 431                 snd_iprintf(buffer, "\n");
 432         }
 433 }
 434
 435 static void print_realtek_coef(struct snd_info_buffer *buffer,
 436                                struct hda_codec *codec, hda_nid_t nid)
 437 {
 438         int coeff = snd_hda_codec_read(codec, nid, 0,
 439                                        AC_VERB_GET_PROC_COEF, 0);
 440         snd_iprintf(buffer, "  Processing Coefficient: 0x%02x\n", coeff);
 441         coeff = snd_hda_codec_read(codec, nid, 0,
 442                                    AC_VERB_GET_COEF_INDEX, 0);
 443         snd_iprintf(buffer, "  Coefficient Index: 0x%02x\n", coeff);
 444 }
 445
 446 static void print_gpio(struct snd_info_buffer *buffer,
 447                        struct hda_codec *codec, hda_nid_t nid)
 448 {
 449         unsigned int gpio =
 450                 snd_hda_param_read(codec, codec->afg, AC_PAR_GPIO_CAP);
 451         unsigned int enable, direction, wake, unsol, sticky, data;
 452         int i, max;
 453         snd_iprintf(buffer, "GPIO: io=%d, o=%d, i=%d, "
 454                     "unsolicited=%d, wake=%d\n",
 455                     gpio & AC_GPIO_IO_COUNT,
 456                     (gpio & AC_GPIO_O_COUNT) >> AC_GPIO_O_COUNT_SHIFT,
 457                     (gpio & AC_GPIO_I_COUNT) >> AC_GPIO_I_COUNT_SHIFT,
 458                     (gpio & AC_GPIO_UNSOLICITED) ? 1 : 0,
 459                     (gpio & AC_GPIO_WAKE) ? 1 : 0);
 460         max = gpio & AC_GPIO_IO_COUNT;
 461         if (!max || max > 8)
 462                 return;
 463         enable = snd_hda_codec_read(codec, nid, 0,
 464                                     AC_VERB_GET_GPIO_MASK, 0);
 465         direction = snd_hda_codec_read(codec, nid, 0,
 466                                        AC_VERB_GET_GPIO_DIRECTION, 0);
 467         wake = snd_hda_codec_read(codec, nid, 0,
 468                                   AC_VERB_GET_GPIO_WAKE_MASK, 0);
 469         unsol  = snd_hda_codec_read(codec, nid, 0,
 470                                     AC_VERB_GET_GPIO_UNSOLICITED_RSP_MASK, 0);
 471         sticky = snd_hda_codec_read(codec, nid, 0,
 472                                     AC_VERB_GET_GPIO_STICKY_MASK, 0);
 473         data = snd_hda_codec_read(codec, nid, 0,
 474                                   AC_VERB_GET_GPIO_DATA, 0);
 475         for (i = 0; i < max; ++i)
 476                 snd_iprintf(buffer,
 477                             "  IO[%d]: enable=%d, dir=%d, wake=%d, "
 478                             "sticky=%d, data=%d\n", i,
 479                             (enable & (1<<i)) ? 1 : 0,
 480                             (direction & (1<<i)) ? 1 : 0,
 481                             (wake & (1<<i)) ? 1 : 0,
 482                             (sticky & (1<<i)) ? 1 : 0,
 483                             (data & (1<<i)) ? 1 : 0);
 484         /* FIXME: add GPO and GPI pin information */
 485 }
 486
 487 static void print_codec_info(struct snd_info_entry *entry,
 488                              struct snd_info_buffer *buffer)
 489 {
 490         struct hda_codec *codec = entry->private_data;
 491         hda_nid_t nid;
 492         int i, nodes;
 493
 494         snd_iprintf(buffer, "Codec: %s\n",
 495                     codec->name ? codec->name : "Not Set");
 496         snd_iprintf(buffer, "Address: %d\n", codec->addr);
 497         snd_iprintf(buffer, "Vendor Id: 0x%x\n", codec->vendor_id);
 498         snd_iprintf(buffer, "Subsystem Id: 0x%x\n", codec->subsystem_id);
 499         snd_iprintf(buffer, "Revision Id: 0x%x\n", codec->revision_id);
 500
 501         if (codec->mfg)
 502                 snd_iprintf(buffer, "Modem Function Group: 0x%x\n", codec->mfg);
 503         else
 504                 snd_iprintf(buffer, "No Modem Function Group found\n");
 505
 506         if (! codec->afg)
 507                 return;
 508         snd_hda_power_up(codec);
 509         snd_iprintf(buffer, "Default PCM:\n");
 510         print_pcm_caps(buffer, codec, codec->afg);
 511         snd_iprintf(buffer, "Default Amp-In caps: ");
 512         print_amp_caps(buffer, codec, codec->afg, HDA_INPUT);
 513         snd_iprintf(buffer, "Default Amp-Out caps: ");
 514         print_amp_caps(buffer, codec, codec->afg, HDA_OUTPUT);
 515
 516         nodes = snd_hda_get_sub_nodes(codec, codec->afg, &nid);
 517         if (! nid || nodes < 0) {
 518                 snd_iprintf(buffer, "Invalid AFG subtree\n");
 519                 snd_hda_power_down(codec);
 520                 return;
 521         }
 522
 523         print_gpio(buffer, codec, codec->afg);
 524
 525         for (i = 0; i < nodes; i++, nid++) {
 526                 unsigned int wid_caps =
 527                         snd_hda_param_read(codec, nid,
 528                                            AC_PAR_AUDIO_WIDGET_CAP);
 529                 unsigned int wid_type =
 530                         (wid_caps & AC_WCAP_TYPE) >> AC_WCAP_TYPE_SHIFT;
 531                 hda_nid_t conn[HDA_MAX_CONNECTIONS];
 532                 int conn_len = 0;
 533
 534                 snd_iprintf(buffer, "Node 0x%02x [%s] wcaps 0x%x:", nid,
 535                             get_wid_type_name(wid_type), wid_caps);
 536                 if (wid_caps & AC_WCAP_STEREO) {
 537                         unsigned int chans;
 538                         chans = (wid_caps & AC_WCAP_CHAN_CNT_EXT) >> 13;
 539                         chans = ((chans << 1) | 1) + 1;
 540                         if (chans == 2)
 541                                 snd_iprintf(buffer, " Stereo");
 542                         else
 543                                 snd_iprintf(buffer, " %d-Channels", chans);
 544                 } else
 545                         snd_iprintf(buffer, " Mono");
 546                 if (wid_caps & AC_WCAP_DIGITAL)
 547                         snd_iprintf(buffer, " Digital");
 548                 if (wid_caps & AC_WCAP_IN_AMP)
 549                         snd_iprintf(buffer, " Amp-In");
 550                 if (wid_caps & AC_WCAP_OUT_AMP)
 551                         snd_iprintf(buffer, " Amp-Out");
 552                 if (wid_caps & AC_WCAP_STRIPE)
 553                         snd_iprintf(buffer, " Stripe");
 554                 if (wid_caps & AC_WCAP_LR_SWAP)
 555                         snd_iprintf(buffer, " R/L");
 556                 if (wid_caps & AC_WCAP_CP_CAPS)
 557                         snd_iprintf(buffer, " CP");
 558                 snd_iprintf(buffer, "\n");
 559
 560                 /* volume knob is a special widget that always have connection
 561                  * list
 562                  */
 563                 if (wid_type == AC_WID_VOL_KNB)
 564                         wid_caps |= AC_WCAP_CONN_LIST;
 565
 566                 if (wid_caps & AC_WCAP_CONN_LIST)
 567                         conn_len = snd_hda_get_connections(codec, nid, conn,
 568                                                            HDA_MAX_CONNECTIONS);
 569
 570                 if (wid_caps & AC_WCAP_IN_AMP) {
 571                         snd_iprintf(buffer, "  Amp-In caps: ");
 572                         print_amp_caps(buffer, codec, nid, HDA_INPUT);
 573                         snd_iprintf(buffer, "  Amp-In vals: ");
 574                         print_amp_vals(buffer, codec, nid, HDA_INPUT,
 575                                        wid_caps & AC_WCAP_STEREO,
 576                                        wid_type == AC_WID_PIN ? 1 : conn_len);
 577                 }
 578                 if (wid_caps & AC_WCAP_OUT_AMP) {
 579                         snd_iprintf(buffer, "  Amp-Out caps: ");
 580                         print_amp_caps(buffer, codec, nid, HDA_OUTPUT);
 581                         snd_iprintf(buffer, "  Amp-Out vals: ");
 582                         print_amp_vals(buffer, codec, nid, HDA_OUTPUT,
 583                                        wid_caps & AC_WCAP_STEREO, 1);
 584                 }
 585
 586                 switch (wid_type) {
 587                 case AC_WID_PIN: {
 588                         int supports_vref;
 589                         print_pin_caps(buffer, codec, nid, &supports_vref);
 590                         print_pin_ctls(buffer, codec, nid, supports_vref);
 591                         break;
 592                 }
 593                 case AC_WID_VOL_KNB:
 594                         print_vol_knob(buffer, codec, nid);
 595                         break;
 596                 case AC_WID_AUD_OUT:
 597                 case AC_WID_AUD_IN:
 598                         print_audio_io(buffer, codec, nid, wid_type);
 599                         if (wid_caps & AC_WCAP_DIGITAL)
 600                                 print_digital_conv(buffer, codec, nid);
 601                         if (wid_caps & AC_WCAP_FORMAT_OVRD) {
 602                                 snd_iprintf(buffer, "  PCM:\n");
 603                                 print_pcm_caps(buffer, codec, nid);
 604                         }
 605                         break;
 606                 }
 607
 608                 if (wid_caps & AC_WCAP_UNSOL_CAP)
 609                         print_unsol_cap(buffer, codec, nid);
 610
 611                 if (wid_caps & AC_WCAP_POWER)
 612                         print_power_state(buffer, codec, nid);
 613
 614                 if (wid_caps & AC_WCAP_DELAY)
 615                         snd_iprintf(buffer, "  Delay: %d samples\n",
 616                                     (wid_caps & AC_WCAP_DELAY) >>
 617                                     AC_WCAP_DELAY_SHIFT);
 618
 619                 if (wid_caps & AC_WCAP_CONN_LIST)
 620                         print_conn_list(buffer, codec, nid, wid_type,
 621                                         conn, conn_len);
 622
 623                 if (wid_caps & AC_WCAP_PROC_WID)
 624                         print_proc_caps(buffer, codec, nid);
 625
 626                 /* NID 0x20 == Realtek Define Registers */
 627                 if (codec->vendor_id == 0x10ec && nid == 0x20)
 628                         print_realtek_coef(buffer, codec, nid);
 629         }
 630         snd_hda_power_down(codec);
 631 }
 632
 633 /*
 634  * create a proc read
 635  */
 636 int snd_hda_codec_proc_new(struct hda_codec *codec)
 637 {
 638         char name[32];
 639         struct snd_info_entry *entry;
 640         int err;
 641
 642         snprintf(name, sizeof(name), "codec#%d", codec->addr);
 643         err = snd_card_proc_new(codec->bus->card, name, &entry);
 644         if (err < 0)
 645                 return err;
 646
 647         snd_info_set_text_ops(entry, codec, print_codec_info);
 648         return 0;
 649 }
 650