sound/pci/hda/hda_generic.c

   1 /*
   2  * Universal Interface for Intel High Definition Audio Codec
   3  *
   4  * Generic widget tree parser
   5  *
   6  * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
   7  *
   8  *  This driver is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License as published by
  10  *  the Free Software Foundation; either version 2 of the License, or
  11  *  (at your option) any later version.
  12  *
  13  *  This driver is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *  GNU General Public License for more details.
  17  *
  18  *  You should have received a copy of the GNU General Public License
  19  *  along with this program; if not, write to the Free Software
  20  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  21  */
  22
  23 #include <sound/driver.h>
  24 #include <linux/init.h>
  25 #include <linux/slab.h>
  26 #include <linux/pci.h>
  27 #include <sound/core.h>
  28 #include "hda_codec.h"
  29 #include "hda_local.h"
  30
  31 /* widget node for parsing */
  32 struct hda_gnode {
  33         hda_nid_t nid;          /* NID of this widget */
  34         unsigned short nconns;  /* number of input connections */
  35         hda_nid_t *conn_list;
  36         hda_nid_t slist[2];     /* temporay list */
  37         unsigned int wid_caps;  /* widget capabilities */
  38         unsigned char type;     /* widget type */
  39         unsigned char pin_ctl;  /* pin controls */
  40         unsigned char checked;  /* the flag indicates that the node is already parsed */
  41         unsigned int pin_caps;  /* pin widget capabilities */
  42         unsigned int def_cfg;   /* default configuration */
  43         unsigned int amp_out_caps;      /* AMP out capabilities */
  44         unsigned int amp_in_caps;       /* AMP in capabilities */
  45         struct list_head list;
  46 };
  47
  48 /* patch-specific record */
  49
  50 #define MAX_PCM_VOLS    2
  51 struct pcm_vol {
  52         struct hda_gnode *node; /* Node for PCM volume */
  53         unsigned int index;     /* connection of PCM volume */
  54 };
  55
  56 struct hda_gspec {
  57         struct hda_gnode *dac_node[2];  /* DAC node */
  58         struct hda_gnode *out_pin_node[2];      /* Output pin (Line-Out) node */
  59         struct pcm_vol pcm_vol[MAX_PCM_VOLS];   /* PCM volumes */
  60         unsigned int pcm_vol_nodes;     /* number of PCM volumes */
  61
  62         struct hda_gnode *adc_node;     /* ADC node */
  63         struct hda_gnode *cap_vol_node; /* Node for capture volume */
  64         unsigned int cur_cap_src;       /* current capture source */
  65         struct hda_input_mux input_mux;
  66         char cap_labels[HDA_MAX_NUM_INPUTS][16];
  67
  68         unsigned int def_amp_in_caps;
  69         unsigned int def_amp_out_caps;
  70
  71         struct hda_pcm pcm_rec;         /* PCM information */
  72
  73         struct list_head nid_list;      /* list of widgets */
  74 };
  75
  76 /*
  77  * retrieve the default device type from the default config value
  78  */
  79 #define defcfg_type(node) (((node)->def_cfg & AC_DEFCFG_DEVICE) >> \
  80                            AC_DEFCFG_DEVICE_SHIFT)
  81 #define defcfg_location(node) (((node)->def_cfg & AC_DEFCFG_LOCATION) >> \
  82                                AC_DEFCFG_LOCATION_SHIFT)
  83 #define defcfg_port_conn(node) (((node)->def_cfg & AC_DEFCFG_PORT_CONN) >> \
  84                                 AC_DEFCFG_PORT_CONN_SHIFT)
  85
  86 /*
  87  * destructor
  88  */
  89 static void snd_hda_generic_free(struct hda_codec *codec)
  90 {
  91         struct hda_gspec *spec = codec->spec;
  92         struct list_head *p, *n;
  93
  94         if (! spec)
  95                 return;
  96         /* free all widgets */
  97         list_for_each_safe(p, n, &spec->nid_list) {
  98                 struct hda_gnode *node = list_entry(p, struct hda_gnode, list);
  99                 if (node->conn_list != node->slist)
 100                         kfree(node->conn_list);
 101                 kfree(node);
 102         }
 103         kfree(spec);
 104 }
 105
 106
 107 /*
 108  * add a new widget node and read its attributes
 109  */
 110 static int add_new_node(struct hda_codec *codec, struct hda_gspec *spec, hda_nid_t nid)
 111 {
 112         struct hda_gnode *node;
 113         int nconns;
 114         hda_nid_t conn_list[HDA_MAX_CONNECTIONS];
 115
 116         node = kzalloc(sizeof(*node), GFP_KERNEL);
 117         if (node == NULL)
 118                 return -ENOMEM;
 119         node->nid = nid;
 120         nconns = snd_hda_get_connections(codec, nid, conn_list,
 121                                          HDA_MAX_CONNECTIONS);
 122         if (nconns < 0) {
 123                 kfree(node);
 124                 return nconns;
 125         }
 126         if (nconns <= ARRAY_SIZE(node->slist))
 127                 node->conn_list = node->slist;
 128         else {
 129                 node->conn_list = kmalloc(sizeof(hda_nid_t) * nconns,
 130                                           GFP_KERNEL);
 131                 if (! node->conn_list) {
 132                         snd_printk(KERN_ERR "hda-generic: cannot malloc\n");
 133                         kfree(node);
 134                         return -ENOMEM;
 135                 }
 136         }
 137         memcpy(node->conn_list, conn_list, nconns);
 138         node->nconns = nconns;
 139         node->wid_caps = get_wcaps(codec, nid);
 140         node->type = (node->wid_caps & AC_WCAP_TYPE) >> AC_WCAP_TYPE_SHIFT;
 141
 142         if (node->type == AC_WID_PIN) {
 143                 node->pin_caps = snd_hda_param_read(codec, node->nid, AC_PAR_PIN_CAP);
 144                 node->pin_ctl = snd_hda_codec_read(codec, node->nid, 0, AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
 145                 node->def_cfg = snd_hda_codec_read(codec, node->nid, 0, AC_VERB_GET_CONFIG_DEFAULT, 0);
 146         }
 147
 148         if (node->wid_caps & AC_WCAP_OUT_AMP) {
 149                 if (node->wid_caps & AC_WCAP_AMP_OVRD)
 150                         node->amp_out_caps = snd_hda_param_read(codec, node->nid, AC_PAR_AMP_OUT_CAP);
 151                 if (! node->amp_out_caps)
 152                         node->amp_out_caps = spec->def_amp_out_caps;
 153         }
 154         if (node->wid_caps & AC_WCAP_IN_AMP) {
 155                 if (node->wid_caps & AC_WCAP_AMP_OVRD)
 156                         node->amp_in_caps = snd_hda_param_read(codec, node->nid, AC_PAR_AMP_IN_CAP);
 157                 if (! node->amp_in_caps)
 158                         node->amp_in_caps = spec->def_amp_in_caps;
 159         }
 160         list_add_tail(&node->list, &spec->nid_list);
 161         return 0;
 162 }
 163
 164 /*
 165  * build the AFG subtree
 166  */
 167 static int build_afg_tree(struct hda_codec *codec)
 168 {
 169         struct hda_gspec *spec = codec->spec;
 170         int i, nodes, err;
 171         hda_nid_t nid;
 172
 173         snd_assert(spec, return -EINVAL);
 174
 175         spec->def_amp_out_caps = snd_hda_param_read(codec, codec->afg, AC_PAR_AMP_OUT_CAP);
 176         spec->def_amp_in_caps = snd_hda_param_read(codec, codec->afg, AC_PAR_AMP_IN_CAP);
 177
 178         nodes = snd_hda_get_sub_nodes(codec, codec->afg, &nid);
 179         if (! nid || nodes < 0) {
 180                 printk(KERN_ERR "Invalid AFG subtree\n");
 181                 return -EINVAL;
 182         }
 183
 184         /* parse all nodes belonging to the AFG */
 185         for (i = 0; i < nodes; i++, nid++) {
 186                 if ((err = add_new_node(codec, spec, nid)) < 0)
 187                         return err;
 188         }
 189
 190         return 0;
 191 }
 192
 193
 194 /*
 195  * look for the node record for the given NID
 196  */
 197 /* FIXME: should avoid the braindead linear search */
 198 static struct hda_gnode *hda_get_node(struct hda_gspec *spec, hda_nid_t nid)
 199 {
 200         struct list_head *p;
 201         struct hda_gnode *node;
 202
 203         list_for_each(p, &spec->nid_list) {
 204                 node = list_entry(p, struct hda_gnode, list);
 205                 if (node->nid == nid)
 206                         return node;
 207         }
 208         return NULL;
 209 }
 210
 211 /*
 212  * unmute (and set max vol) the output amplifier
 213  */
 214 static int unmute_output(struct hda_codec *codec, struct hda_gnode *node)
 215 {
 216         unsigned int val, ofs;
 217         snd_printdd("UNMUTE OUT: NID=0x%x\n", node->nid);
 218         val = (node->amp_out_caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT;
 219         ofs = (node->amp_out_caps & AC_AMPCAP_OFFSET) >> AC_AMPCAP_OFFSET_SHIFT;
 220         if (val >= ofs)
 221                 val -= ofs;
 222         val |= AC_AMP_SET_LEFT | AC_AMP_SET_RIGHT;
 223         val |= AC_AMP_SET_OUTPUT;
 224         return snd_hda_codec_write(codec, node->nid, 0, AC_VERB_SET_AMP_GAIN_MUTE, val);
 225 }
 226
 227 /*
 228  * unmute (and set max vol) the input amplifier
 229  */
 230 static int unmute_input(struct hda_codec *codec, struct hda_gnode *node, unsigned int index)
 231 {
 232         unsigned int val, ofs;
 233         snd_printdd("UNMUTE IN: NID=0x%x IDX=0x%x\n", node->nid, index);
 234         val = (node->amp_in_caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT;
 235         ofs = (node->amp_in_caps & AC_AMPCAP_OFFSET) >> AC_AMPCAP_OFFSET_SHIFT;
 236         if (val >= ofs)
 237                 val -= ofs;
 238         val |= AC_AMP_SET_LEFT | AC_AMP_SET_RIGHT;
 239         val |= AC_AMP_SET_INPUT;
 240         // awk added - fixed to allow unmuting of indexed amps
 241         val |= index << AC_AMP_SET_INDEX_SHIFT;
 242         return snd_hda_codec_write(codec, node->nid, 0, AC_VERB_SET_AMP_GAIN_MUTE, val);
 243 }
 244
 245 /*
 246  * select the input connection of the given node.
 247  */
 248 static int select_input_connection(struct hda_codec *codec, struct hda_gnode *node,
 249                                    unsigned int index)
 250 {
 251         snd_printdd("CONNECT: NID=0x%x IDX=0x%x\n", node->nid, index);
 252         return snd_hda_codec_write(codec, node->nid, 0, AC_VERB_SET_CONNECT_SEL, index);
 253 }
 254
 255 /*
 256  * clear checked flag of each node in the node list
 257  */
 258 static void clear_check_flags(struct hda_gspec *spec)
 259 {
 260         struct list_head *p;
 261         struct hda_gnode *node;
 262
 263         list_for_each(p, &spec->nid_list) {
 264                 node = list_entry(p, struct hda_gnode, list);
 265                 node->checked = 0;
 266         }
 267 }
 268
 269 /*
 270  * parse the output path recursively until reach to an audio output widget
 271  *
 272  * returns 0 if not found, 1 if found, or a negative error code.
 273  */
 274 static int parse_output_path(struct hda_codec *codec, struct hda_gspec *spec,
 275                              struct hda_gnode *node, int dac_idx)
 276 {
 277         int i, err;
 278         struct hda_gnode *child;
 279
 280         if (node->checked)
 281                 return 0;
 282
 283         node->checked = 1;
 284         if (node->type == AC_WID_AUD_OUT) {
 285                 if (node->wid_caps & AC_WCAP_DIGITAL) {
 286                         snd_printdd("Skip Digital OUT node %x\n", node->nid);
 287                         return 0;
 288                 }
 289                 snd_printdd("AUD_OUT found %x\n", node->nid);
 290                 if (spec->dac_node[dac_idx]) {
 291                         /* already DAC node is assigned, just unmute & connect */
 292                         return node == spec->dac_node[dac_idx];
 293                 }
 294                 spec->dac_node[dac_idx] = node;
 295                 if ((node->wid_caps & AC_WCAP_OUT_AMP) &&
 296                     spec->pcm_vol_nodes < MAX_PCM_VOLS) {
 297                         spec->pcm_vol[spec->pcm_vol_nodes].node = node;
 298                         spec->pcm_vol[spec->pcm_vol_nodes].index = 0;
 299                         spec->pcm_vol_nodes++;
 300                 }
 301                 return 1; /* found */
 302         }
 303
 304         for (i = 0; i < node->nconns; i++) {
 305                 child = hda_get_node(spec, node->conn_list[i]);
 306                 if (! child)
 307                         continue;
 308                 err = parse_output_path(codec, spec, child, dac_idx);
 309                 if (err < 0)
 310                         return err;
 311                 else if (err > 0) {
 312                         /* found one,
 313                          * select the path, unmute both input and output
 314                          */
 315                         if (node->nconns > 1)
 316                                 select_input_connection(codec, node, i);
 317                         unmute_input(codec, node, i);
 318                         unmute_output(codec, node);
 319                         if (spec->dac_node[dac_idx] &&
 320                             spec->pcm_vol_nodes < MAX_PCM_VOLS &&
 321                             !(spec->dac_node[dac_idx]->wid_caps &
 322                               AC_WCAP_OUT_AMP)) {
 323                                 if ((node->wid_caps & AC_WCAP_IN_AMP) ||
 324                                     (node->wid_caps & AC_WCAP_OUT_AMP)) {
 325                                         int n = spec->pcm_vol_nodes;
 326                                         spec->pcm_vol[n].node = node;
 327                                         spec->pcm_vol[n].index = i;
 328                                         spec->pcm_vol_nodes++;
 329                                 }
 330                         }
 331                         return 1;
 332                 }
 333         }
 334         return 0;
 335 }
 336
 337 /*
 338  * Look for the output PIN widget with the given jack type
 339  * and parse the output path to that PIN.
 340  *
 341  * Returns the PIN node when the path to DAC is established.
 342  */
 343 static struct hda_gnode *parse_output_jack(struct hda_codec *codec,
 344                                            struct hda_gspec *spec,
 345                                            int jack_type)
 346 {
 347         struct list_head *p;
 348         struct hda_gnode *node;
 349         int err;
 350
 351         list_for_each(p, &spec->nid_list) {
 352                 node = list_entry(p, struct hda_gnode, list);
 353                 if (node->type != AC_WID_PIN)
 354                         continue;
 355                 /* output capable? */
 356                 if (! (node->pin_caps & AC_PINCAP_OUT))
 357                         continue;
 358                 if (defcfg_port_conn(node) == AC_JACK_PORT_NONE)
 359                         continue; /* unconnected */
 360                 if (jack_type >= 0) {
 361                         if (jack_type != defcfg_type(node))
 362                                 continue;
 363                         if (node->wid_caps & AC_WCAP_DIGITAL)
 364                                 continue; /* skip SPDIF */
 365                 } else {
 366                         /* output as default? */
 367                         if (! (node->pin_ctl & AC_PINCTL_OUT_EN))
 368                                 continue;
 369                 }
 370                 clear_check_flags(spec);
 371                 err = parse_output_path(codec, spec, node, 0);
 372                 if (err < 0)
 373                         return NULL;
 374                 if (! err && spec->out_pin_node[0]) {
 375                         err = parse_output_path(codec, spec, node, 1);
 376                         if (err < 0)
 377                                 return NULL;
 378                 }
 379                 if (err > 0) {
 380                         /* unmute the PIN output */
 381                         unmute_output(codec, node);
 382                         /* set PIN-Out enable */
 383                         snd_hda_codec_write(codec, node->nid, 0,
 384                                             AC_VERB_SET_PIN_WIDGET_CONTROL,
 385                                             AC_PINCTL_OUT_EN |
 386                                             ((node->pin_caps & AC_PINCAP_HP_DRV) ?
 387                                              AC_PINCTL_HP_EN : 0));
 388                         return node;
 389                 }
 390         }
 391         return NULL;
 392 }
 393
 394
 395 /*
 396  * parse outputs
 397  */
 398 static int parse_output(struct hda_codec *codec)
 399 {
 400         struct hda_gspec *spec = codec->spec;
 401         struct hda_gnode *node;
 402
 403         /*
 404          * Look for the output PIN widget
 405          */
 406         /* first, look for the line-out pin */
 407         node = parse_output_jack(codec, spec, AC_JACK_LINE_OUT);
 408         if (node) /* found, remember the PIN node */
 409                 spec->out_pin_node[0] = node;
 410         else {
 411                 /* if no line-out is found, try speaker out */
 412                 node = parse_output_jack(codec, spec, AC_JACK_SPEAKER);
 413                 if (node)
 414                         spec->out_pin_node[0] = node;
 415         }
 416         /* look for the HP-out pin */
 417         node = parse_output_jack(codec, spec, AC_JACK_HP_OUT);
 418         if (node) {
 419                 if (! spec->out_pin_node[0])
 420                         spec->out_pin_node[0] = node;
 421                 else
 422                         spec->out_pin_node[1] = node;
 423         }
 424
 425         if (! spec->out_pin_node[0]) {
 426                 /* no line-out or HP pins found,
 427                  * then choose for the first output pin
 428                  */
 429                 spec->out_pin_node[0] = parse_output_jack(codec, spec, -1);
 430                 if (! spec->out_pin_node[0])
 431                         snd_printd("hda_generic: no proper output path found\n");
 432         }
 433
 434         return 0;
 435 }
 436
 437 /*
 438  * input MUX
 439  */
 440
 441 /* control callbacks */
 442 static int capture_source_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 443 {
 444         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 445         struct hda_gspec *spec = codec->spec;
 446         return snd_hda_input_mux_info(&spec->input_mux, uinfo);
 447 }
 448
 449 static int capture_source_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 450 {
 451         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 452         struct hda_gspec *spec = codec->spec;
 453
 454         ucontrol->value.enumerated.item[0] = spec->cur_cap_src;
 455         return 0;
 456 }
 457
 458 static int capture_source_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 459 {
 460         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 461         struct hda_gspec *spec = codec->spec;
 462         return snd_hda_input_mux_put(codec, &spec->input_mux, ucontrol,
 463                                      spec->adc_node->nid, &spec->cur_cap_src);
 464 }
 465
 466 /*
 467  * return the string name of the given input PIN widget
 468  */
 469 static const char *get_input_type(struct hda_gnode *node, unsigned int *pinctl)
 470 {
 471         unsigned int location = defcfg_location(node);
 472         switch (defcfg_type(node)) {
 473         case AC_JACK_LINE_IN:
 474                 if ((location & 0x0f) == AC_JACK_LOC_FRONT)
 475                         return "Front Line";
 476                 return "Line";
 477         case AC_JACK_CD:
 478 #if 0
 479                 if (pinctl)
 480                         *pinctl |= AC_PINCTL_VREF_GRD;
 481 #endif
 482                 return "CD";
 483         case AC_JACK_AUX:
 484                 if ((location & 0x0f) == AC_JACK_LOC_FRONT)
 485                         return "Front Aux";
 486                 return "Aux";
 487         case AC_JACK_MIC_IN:
 488                 if (node->pin_caps &
 489                     (AC_PINCAP_VREF_80 << AC_PINCAP_VREF_SHIFT))
 490                         *pinctl |= AC_PINCTL_VREF_80;
 491                 if ((location & 0x0f) == AC_JACK_LOC_FRONT)
 492                         return "Front Mic";
 493                 return "Mic";
 494         case AC_JACK_SPDIF_IN:
 495                 return "SPDIF";
 496         case AC_JACK_DIG_OTHER_IN:
 497                 return "Digital";
 498         }
 499         return NULL;
 500 }
 501
 502 /*
 503  * parse the nodes recursively until reach to the input PIN
 504  *
 505  * returns 0 if not found, 1 if found, or a negative error code.
 506  */
 507 static int parse_adc_sub_nodes(struct hda_codec *codec, struct hda_gspec *spec,
 508                                struct hda_gnode *node)
 509 {
 510         int i, err;
 511         unsigned int pinctl;
 512         char *label;
 513         const char *type;
 514
 515         if (node->checked)
 516                 return 0;
 517
 518         node->checked = 1;
 519         if (node->type != AC_WID_PIN) {
 520                 for (i = 0; i < node->nconns; i++) {
 521                         struct hda_gnode *child;
 522                         child = hda_get_node(spec, node->conn_list[i]);
 523                         if (! child)
 524                                 continue;
 525                         err = parse_adc_sub_nodes(codec, spec, child);
 526                         if (err < 0)
 527                                 return err;
 528                         if (err > 0) {
 529                                 /* found one,
 530                                  * select the path, unmute both input and output
 531                                  */
 532                                 if (node->nconns > 1)
 533                                         select_input_connection(codec, node, i);
 534                                 unmute_input(codec, node, i);
 535                                 unmute_output(codec, node);
 536                                 return err;
 537                         }
 538                 }
 539                 return 0;
 540         }
 541
 542         /* input capable? */
 543         if (! (node->pin_caps & AC_PINCAP_IN))
 544                 return 0;
 545
 546         if (defcfg_port_conn(node) == AC_JACK_PORT_NONE)
 547                 return 0; /* unconnected */
 548
 549         if (node->wid_caps & AC_WCAP_DIGITAL)
 550                 return 0; /* skip SPDIF */
 551
 552         if (spec->input_mux.num_items >= HDA_MAX_NUM_INPUTS) {
 553                 snd_printk(KERN_ERR "hda_generic: Too many items for capture\n");
 554                 return -EINVAL;
 555         }
 556
 557         pinctl = AC_PINCTL_IN_EN;
 558         /* create a proper capture source label */
 559         type = get_input_type(node, &pinctl);
 560         if (! type) {
 561                 /* input as default? */
 562                 if (! (node->pin_ctl & AC_PINCTL_IN_EN))
 563                         return 0;
 564                 type = "Input";
 565         }
 566         label = spec->cap_labels[spec->input_mux.num_items];
 567         strcpy(label, type);
 568         spec->input_mux.items[spec->input_mux.num_items].label = label;
 569
 570         /* unmute the PIN external input */
 571         unmute_input(codec, node, 0); /* index = 0? */
 572         /* set PIN-In enable */
 573         snd_hda_codec_write(codec, node->nid, 0, AC_VERB_SET_PIN_WIDGET_CONTROL, pinctl);
 574
 575         return 1; /* found */
 576 }
 577
 578 /* add a capture source element */
 579 static void add_cap_src(struct hda_gspec *spec, int idx)
 580 {
 581         struct hda_input_mux_item *csrc;
 582         char *buf;
 583         int num, ocap;
 584
 585         num = spec->input_mux.num_items;
 586         csrc = &spec->input_mux.items[num];
 587         buf = spec->cap_labels[num];
 588         for (ocap = 0; ocap < num; ocap++) {
 589                 if (! strcmp(buf, spec->cap_labels[ocap])) {
 590                         /* same label already exists,
 591                          * put the index number to be unique
 592                          */
 593                         sprintf(buf, "%s %d", spec->cap_labels[ocap], num);
 594                         break;
 595                 }
 596         }
 597         csrc->index = idx;
 598         spec->input_mux.num_items++;
 599 }
 600
 601 /*
 602  * parse input
 603  */
 604 static int parse_input_path(struct hda_codec *codec, struct hda_gnode *adc_node)
 605 {
 606         struct hda_gspec *spec = codec->spec;
 607         struct hda_gnode *node;
 608         int i, err;
 609
 610         snd_printdd("AUD_IN = %x\n", adc_node->nid);
 611         clear_check_flags(spec);
 612
 613         // awk added - fixed no recording due to muted widget
 614         unmute_input(codec, adc_node, 0);
 615
 616         /*
 617          * check each connection of the ADC
 618          * if it reaches to a proper input PIN, add the path as the
 619          * input path.
 620          */
 621         /* first, check the direct connections to PIN widgets */
 622         for (i = 0; i < adc_node->nconns; i++) {
 623                 node = hda_get_node(spec, adc_node->conn_list[i]);
 624                 if (node && node->type == AC_WID_PIN) {
 625                         err = parse_adc_sub_nodes(codec, spec, node);
 626                         if (err < 0)
 627                                 return err;
 628                         else if (err > 0)
 629                                 add_cap_src(spec, i);
 630                 }
 631         }
 632         /* ... then check the rests, more complicated connections */
 633         for (i = 0; i < adc_node->nconns; i++) {
 634                 node = hda_get_node(spec, adc_node->conn_list[i]);
 635                 if (node && node->type != AC_WID_PIN) {
 636                         err = parse_adc_sub_nodes(codec, spec, node);
 637                         if (err < 0)
 638                                 return err;
 639                         else if (err > 0)
 640                                 add_cap_src(spec, i);
 641                 }
 642         }
 643
 644         if (! spec->input_mux.num_items)
 645                 return 0; /* no input path found... */
 646
 647         snd_printdd("[Capture Source] NID=0x%x, #SRC=%d\n", adc_node->nid, spec->input_mux.num_items);
 648         for (i = 0; i < spec->input_mux.num_items; i++)
 649                 snd_printdd("  [%s] IDX=0x%x\n", spec->input_mux.items[i].label,
 650                             spec->input_mux.items[i].index);
 651
 652         spec->adc_node = adc_node;
 653         return 1;
 654 }
 655
 656 /*
 657  * parse input
 658  */
 659 static int parse_input(struct hda_codec *codec)
 660 {
 661         struct hda_gspec *spec = codec->spec;
 662         struct list_head *p;
 663         struct hda_gnode *node;
 664         int err;
 665
 666         /*
 667          * At first we look for an audio input widget.
 668          * If it reaches to certain input PINs, we take it as the
 669          * input path.
 670          */
 671         list_for_each(p, &spec->nid_list) {
 672                 node = list_entry(p, struct hda_gnode, list);
 673                 if (node->wid_caps & AC_WCAP_DIGITAL)
 674                         continue; /* skip SPDIF */
 675                 if (node->type == AC_WID_AUD_IN) {
 676                         err = parse_input_path(codec, node);
 677                         if (err < 0)
 678                                 return err;
 679                         else if (err > 0)
 680                                 return 0;
 681                 }
 682         }
 683         snd_printd("hda_generic: no proper input path found\n");
 684         return 0;
 685 }
 686
 687 /*
 688  * create mixer controls if possible
 689  */
 690 static int create_mixer(struct hda_codec *codec, struct hda_gnode *node,
 691                         unsigned int index, const char *type, const char *dir_sfx)
 692 {
 693         char name[32];
 694         int err;
 695         int created = 0;
 696         struct snd_kcontrol_new knew;
 697
 698         if (type)
 699                 sprintf(name, "%s %s Switch", type, dir_sfx);
 700         else
 701                 sprintf(name, "%s Switch", dir_sfx);
 702         if ((node->wid_caps & AC_WCAP_IN_AMP) &&
 703             (node->amp_in_caps & AC_AMPCAP_MUTE)) {
 704                 knew = (struct snd_kcontrol_new)HDA_CODEC_MUTE(name, node->nid, index, HDA_INPUT);
 705                 snd_printdd("[%s] NID=0x%x, DIR=IN, IDX=0x%x\n", name, node->nid, index);
 706                 if ((err = snd_ctl_add(codec->bus->card, snd_ctl_new1(&knew, codec))) < 0)
 707                         return err;
 708                 created = 1;
 709         } else if ((node->wid_caps & AC_WCAP_OUT_AMP) &&
 710                    (node->amp_out_caps & AC_AMPCAP_MUTE)) {
 711                 knew = (struct snd_kcontrol_new)HDA_CODEC_MUTE(name, node->nid, 0, HDA_OUTPUT);
 712                 snd_printdd("[%s] NID=0x%x, DIR=OUT\n", name, node->nid);
 713                 if ((err = snd_ctl_add(codec->bus->card, snd_ctl_new1(&knew, codec))) < 0)
 714                         return err;
 715                 created = 1;
 716         }
 717
 718         if (type)
 719                 sprintf(name, "%s %s Volume", type, dir_sfx);
 720         else
 721                 sprintf(name, "%s Volume", dir_sfx);
 722         if ((node->wid_caps & AC_WCAP_IN_AMP) &&
 723             (node->amp_in_caps & AC_AMPCAP_NUM_STEPS)) {
 724                 knew = (struct snd_kcontrol_new)HDA_CODEC_VOLUME(name, node->nid, index, HDA_INPUT);
 725                 snd_printdd("[%s] NID=0x%x, DIR=IN, IDX=0x%x\n", name, node->nid, index);
 726                 if ((err = snd_ctl_add(codec->bus->card, snd_ctl_new1(&knew, codec))) < 0)
 727                         return err;
 728                 created = 1;
 729         } else if ((node->wid_caps & AC_WCAP_OUT_AMP) &&
 730                    (node->amp_out_caps & AC_AMPCAP_NUM_STEPS)) {
 731                 knew = (struct snd_kcontrol_new)HDA_CODEC_VOLUME(name, node->nid, 0, HDA_OUTPUT);
 732                 snd_printdd("[%s] NID=0x%x, DIR=OUT\n", name, node->nid);
 733                 if ((err = snd_ctl_add(codec->bus->card, snd_ctl_new1(&knew, codec))) < 0)
 734                         return err;
 735                 created = 1;
 736         }
 737
 738         return created;
 739 }
 740
 741 /*
 742  * check whether the controls with the given name and direction suffix already exist
 743  */
 744 static int check_existing_control(struct hda_codec *codec, const char *type, const char *dir)
 745 {
 746         struct snd_ctl_elem_id id;
 747         memset(&id, 0, sizeof(id));
 748         sprintf(id.name, "%s %s Volume", type, dir);
 749         id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
 750         if (snd_ctl_find_id(codec->bus->card, &id))
 751                 return 1;
 752         sprintf(id.name, "%s %s Switch", type, dir);
 753         id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
 754         if (snd_ctl_find_id(codec->bus->card, &id))
 755                 return 1;
 756         return 0;
 757 }
 758
 759 /*
 760  * build output mixer controls
 761  */
 762 static int create_output_mixers(struct hda_codec *codec, const char **names)
 763 {
 764         struct hda_gspec *spec = codec->spec;
 765         int i, err;
 766
 767         for (i = 0; i < spec->pcm_vol_nodes; i++) {
 768                 err = create_mixer(codec, spec->pcm_vol[i].node,
 769                                    spec->pcm_vol[i].index,
 770                                    names[i], "Playback");
 771                 if (err < 0)
 772                         return err;
 773         }
 774         return 0;
 775 }
 776
 777 static int build_output_controls(struct hda_codec *codec)
 778 {
 779         struct hda_gspec *spec = codec->spec;
 780         static const char *types_speaker[] = { "Speaker", "Headphone" };
 781         static const char *types_line[] = { "Front", "Headphone" };
 782
 783         switch (spec->pcm_vol_nodes) {
 784         case 1:
 785                 return create_mixer(codec, spec->pcm_vol[0].node,
 786                                     spec->pcm_vol[0].index,
 787                                     "Master", "Playback");
 788         case 2:
 789                 if (defcfg_type(spec->out_pin_node[0]) == AC_JACK_SPEAKER)
 790                         return create_output_mixers(codec, types_speaker);
 791                 else
 792                         return create_output_mixers(codec, types_line);
 793         }
 794         return 0;
 795 }
 796
 797 /* create capture volume/switch */
 798 static int build_input_controls(struct hda_codec *codec)
 799 {
 800         struct hda_gspec *spec = codec->spec;
 801         struct hda_gnode *adc_node = spec->adc_node;
 802         int i, err;
 803         static struct snd_kcontrol_new cap_sel = {
 804                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 805                 .name = "Capture Source",
 806                 .info = capture_source_info,
 807                 .get = capture_source_get,
 808                 .put = capture_source_put,
 809         };
 810
 811         if (! adc_node || ! spec->input_mux.num_items)
 812                 return 0; /* not found */
 813
 814         spec->cur_cap_src = 0;
 815         select_input_connection(codec, adc_node,
 816                                 spec->input_mux.items[0].index);
 817
 818         /* create capture volume and switch controls if the ADC has an amp */
 819         /* do we have only a single item? */
 820         if (spec->input_mux.num_items == 1) {
 821                 err = create_mixer(codec, adc_node,
 822                                    spec->input_mux.items[0].index,
 823                                    NULL, "Capture");
 824                 if (err < 0)
 825                         return err;
 826                 return 0;
 827         }
 828
 829         /* create input MUX if multiple sources are available */
 830         if ((err = snd_ctl_add(codec->bus->card,
 831                                snd_ctl_new1(&cap_sel, codec))) < 0)
 832                 return err;
 833
 834         /* no volume control? */
 835         if (! (adc_node->wid_caps & AC_WCAP_IN_AMP) ||
 836             ! (adc_node->amp_in_caps & AC_AMPCAP_NUM_STEPS))
 837                 return 0;
 838
 839         for (i = 0; i < spec->input_mux.num_items; i++) {
 840                 struct snd_kcontrol_new knew;
 841                 char name[32];
 842                 sprintf(name, "%s Capture Volume",
 843                         spec->input_mux.items[i].label);
 844                 knew = (struct snd_kcontrol_new)
 845                         HDA_CODEC_VOLUME(name, adc_node->nid,
 846                                          spec->input_mux.items[i].index,
 847                                          HDA_INPUT);
 848                 if ((err = snd_ctl_add(codec->bus->card,
 849                                        snd_ctl_new1(&knew, codec))) < 0)
 850                         return err;
 851         }
 852
 853         return 0;
 854 }
 855
 856
 857 /*
 858  * parse the nodes recursively until reach to the output PIN.
 859  *
 860  * returns 0 - if not found,
 861  *         1 - if found, but no mixer is created
 862  *         2 - if found and mixer was already created, (just skip)
 863  *         a negative error code
 864  */
 865 static int parse_loopback_path(struct hda_codec *codec, struct hda_gspec *spec,
 866                                struct hda_gnode *node, struct hda_gnode *dest_node,
 867                                const char *type)
 868 {
 869         int i, err;
 870
 871         if (node->checked)
 872                 return 0;
 873
 874         node->checked = 1;
 875         if (node == dest_node) {
 876                 /* loopback connection found */
 877                 return 1;
 878         }
 879
 880         for (i = 0; i < node->nconns; i++) {
 881                 struct hda_gnode *child = hda_get_node(spec, node->conn_list[i]);
 882                 if (! child)
 883                         continue;
 884                 err = parse_loopback_path(codec, spec, child, dest_node, type);
 885                 if (err < 0)
 886                         return err;
 887                 else if (err >= 1) {
 888                         if (err == 1) {
 889                                 err = create_mixer(codec, node, i, type, "Playback");
 890                                 if (err < 0)
 891                                         return err;
 892                                 if (err > 0)
 893                                         return 2; /* ok, created */
 894                                 /* not created, maybe in the lower path */
 895                                 err = 1;
 896                         }
 897                         /* connect and unmute */
 898                         if (node->nconns > 1)
 899                                 select_input_connection(codec, node, i);
 900                         unmute_input(codec, node, i);
 901                         unmute_output(codec, node);
 902                         return err;
 903                 }
 904         }
 905         return 0;
 906 }
 907
 908 /*
 909  * parse the tree and build the loopback controls
 910  */
 911 static int build_loopback_controls(struct hda_codec *codec)
 912 {
 913         struct hda_gspec *spec = codec->spec;
 914         struct list_head *p;
 915         struct hda_gnode *node;
 916         int err;
 917         const char *type;
 918
 919         if (! spec->out_pin_node[0])
 920                 return 0;
 921
 922         list_for_each(p, &spec->nid_list) {
 923                 node = list_entry(p, struct hda_gnode, list);
 924                 if (node->type != AC_WID_PIN)
 925                         continue;
 926                 /* input capable? */
 927                 if (! (node->pin_caps & AC_PINCAP_IN))
 928                         return 0;
 929                 type = get_input_type(node, NULL);
 930                 if (type) {
 931                         if (check_existing_control(codec, type, "Playback"))
 932                                 continue;
 933                         clear_check_flags(spec);
 934                         err = parse_loopback_path(codec, spec,
 935                                                   spec->out_pin_node[0],
 936                                                   node, type);
 937                         if (err < 0)
 938                                 return err;
 939                         if (! err)
 940                                 continue;
 941                 }
 942         }
 943         return 0;
 944 }
 945
 946 /*
 947  * build mixer controls
 948  */
 949 static int build_generic_controls(struct hda_codec *codec)
 950 {
 951         int err;
 952
 953         if ((err = build_input_controls(codec)) < 0 ||
 954             (err = build_output_controls(codec)) < 0 ||
 955             (err = build_loopback_controls(codec)) < 0)
 956                 return err;
 957
 958         return 0;
 959 }
 960
 961 /*
 962  * PCM
 963  */
 964 static struct hda_pcm_stream generic_pcm_playback = {
 965         .substreams = 1,
 966         .channels_min = 2,
 967         .channels_max = 2,
 968 };
 969
 970 static int generic_pcm2_prepare(struct hda_pcm_stream *hinfo,
 971                                 struct hda_codec *codec,
 972                                 unsigned int stream_tag,
 973                                 unsigned int format,
 974                                 struct snd_pcm_substream *substream)
 975 {
 976         struct hda_gspec *spec = codec->spec;
 977
 978         snd_hda_codec_setup_stream(codec, hinfo->nid, stream_tag, 0, format);
 979         snd_hda_codec_setup_stream(codec, spec->dac_node[1]->nid,
 980                                    stream_tag, 0, format);
 981         return 0;
 982 }
 983
 984 static int generic_pcm2_cleanup(struct hda_pcm_stream *hinfo,
 985                                 struct hda_codec *codec,
 986                                 struct snd_pcm_substream *substream)
 987 {
 988         struct hda_gspec *spec = codec->spec;
 989
 990         snd_hda_codec_setup_stream(codec, hinfo->nid, 0, 0, 0);
 991         snd_hda_codec_setup_stream(codec, spec->dac_node[1]->nid, 0, 0, 0);
 992         return 0;
 993 }
 994
 995 static int build_generic_pcms(struct hda_codec *codec)
 996 {
 997         struct hda_gspec *spec = codec->spec;
 998         struct hda_pcm *info = &spec->pcm_rec;
 999
1000         if (! spec->dac_node[0] && ! spec->adc_node) {
1001                 snd_printd("hda_generic: no PCM found\n");
1002                 return 0;
1003         }
1004
1005         codec->num_pcms = 1;
1006         codec->pcm_info = info;
1007
1008         info->name = "HDA Generic";
1009         if (spec->dac_node[0]) {
1010                 info->stream[0] = generic_pcm_playback;
1011                 info->stream[0].nid = spec->dac_node[0]->nid;
1012                 if (spec->dac_node[1]) {
1013                         info->stream[0].ops.prepare = generic_pcm2_prepare;
1014                         info->stream[0].ops.cleanup = generic_pcm2_cleanup;
1015                 }
1016         }
1017         if (spec->adc_node) {
1018                 info->stream[1] = generic_pcm_playback;
1019                 info->stream[1].nid = spec->adc_node->nid;
1020         }
1021
1022         return 0;
1023 }
1024
1025
1026 /*
1027  */
1028 static struct hda_codec_ops generic_patch_ops = {
1029         .build_controls = build_generic_controls,
1030         .build_pcms = build_generic_pcms,
1031         .free = snd_hda_generic_free,
1032 };
1033
1034 /*
1035  * the generic parser
1036  */
1037 int snd_hda_parse_generic_codec(struct hda_codec *codec)
1038 {
1039         struct hda_gspec *spec;
1040         int err;
1041
1042         if(!codec->afg)
1043                 return 0;
1044
1045         spec = kzalloc(sizeof(*spec), GFP_KERNEL);
1046         if (spec == NULL) {
1047                 printk(KERN_ERR "hda_generic: can't allocate spec\n");
1048                 return -ENOMEM;
1049         }
1050         codec->spec = spec;
1051         INIT_LIST_HEAD(&spec->nid_list);
1052
1053         if ((err = build_afg_tree(codec)) < 0)
1054                 goto error;
1055
1056         if ((err = parse_input(codec)) < 0 ||
1057             (err = parse_output(codec)) < 0)
1058                 goto error;
1059
1060         codec->patch_ops = generic_patch_ops;
1061
1062         return 0;
1063
1064  error:
1065         snd_hda_generic_free(codec);
1066         return err;
1067 }