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 <linux/init.h>
  24 #include <linux/slab.h>
  25 #include <sound/core.h>
  26 #include "hda_codec.h"
  27 #include "hda_local.h"
  28
  29 /* widget node for parsing */
  30 struct hda_gnode {
  31         hda_nid_t nid;          /* NID of this widget */
  32         unsigned short nconns;  /* number of input connections */
  33         hda_nid_t *conn_list;
  34         hda_nid_t slist[2];     /* temporay list */
  35         unsigned int wid_caps;  /* widget capabilities */
  36         unsigned char type;     /* widget type */
  37         unsigned char pin_ctl;  /* pin controls */
  38         unsigned char checked;  /* the flag indicates that the node is already parsed */
  39         unsigned int pin_caps;  /* pin widget capabilities */
  40         unsigned int def_cfg;   /* default configuration */
  41         unsigned int amp_out_caps;      /* AMP out capabilities */
  42         unsigned int amp_in_caps;       /* AMP in capabilities */
  43         struct list_head list;
  44 };
  45
  46 /* patch-specific record */
  47
  48 #define MAX_PCM_VOLS    2
  49 struct pcm_vol {
  50         struct hda_gnode *node; /* Node for PCM volume */
  51         unsigned int index;     /* connection of PCM volume */
  52 };
  53
  54 struct hda_gspec {
  55         struct hda_gnode *dac_node[2];  /* DAC node */
  56         struct hda_gnode *out_pin_node[2];      /* Output pin (Line-Out) node */
  57         struct pcm_vol pcm_vol[MAX_PCM_VOLS];   /* PCM volumes */
  58         unsigned int pcm_vol_nodes;     /* number of PCM volumes */
  59
  60         struct hda_gnode *adc_node;     /* ADC node */
  61         struct hda_gnode *cap_vol_node; /* Node for capture volume */
  62         unsigned int cur_cap_src;       /* current capture source */
  63         struct hda_input_mux input_mux;
  64
  65         unsigned int def_amp_in_caps;
  66         unsigned int def_amp_out_caps;
  67
  68         struct hda_pcm pcm_rec;         /* PCM information */
  69
  70         struct list_head nid_list;      /* list of widgets */
  71
  72 #ifdef CONFIG_SND_HDA_POWER_SAVE
  73 #define MAX_LOOPBACK_AMPS       7
  74         struct hda_loopback_check loopback;
  75         int num_loopbacks;
  76         struct hda_amp_list loopback_list[MAX_LOOPBACK_AMPS + 1];
  77 #endif
  78 };
  79
  80 /*
  81  * retrieve the default device type from the default config value
  82  */
  83 #define defcfg_type(node) (((node)->def_cfg & AC_DEFCFG_DEVICE) >> \
  84                            AC_DEFCFG_DEVICE_SHIFT)
  85 #define defcfg_location(node) (((node)->def_cfg & AC_DEFCFG_LOCATION) >> \
  86                                AC_DEFCFG_LOCATION_SHIFT)
  87 #define defcfg_port_conn(node) (((node)->def_cfg & AC_DEFCFG_PORT_CONN) >> \
  88                                 AC_DEFCFG_PORT_CONN_SHIFT)
  89
  90 /*
  91  * destructor
  92  */
  93 static void snd_hda_generic_free(struct hda_codec *codec)
  94 {
  95         struct hda_gspec *spec = codec->spec;
  96         struct hda_gnode *node, *n;
  97
  98         if (! spec)
  99                 return;
 100         /* free all widgets */
 101         list_for_each_entry_safe(node, n, &spec->nid_list, list) {
 102                 if (node->conn_list != node->slist)
 103                         kfree(node->conn_list);
 104                 kfree(node);
 105         }
 106         kfree(spec);
 107 }
 108
 109
 110 /*
 111  * add a new widget node and read its attributes
 112  */
 113 static int add_new_node(struct hda_codec *codec, struct hda_gspec *spec, hda_nid_t nid)
 114 {
 115         struct hda_gnode *node;
 116         int nconns;
 117         hda_nid_t conn_list[HDA_MAX_CONNECTIONS];
 118
 119         node = kzalloc(sizeof(*node), GFP_KERNEL);
 120         if (node == NULL)
 121                 return -ENOMEM;
 122         node->nid = nid;
 123         node->wid_caps = get_wcaps(codec, nid);
 124         node->type = get_wcaps_type(node->wid_caps);
 125         if (node->wid_caps & AC_WCAP_CONN_LIST) {
 126                 nconns = snd_hda_get_connections(codec, nid, conn_list,
 127                                                  HDA_MAX_CONNECTIONS);
 128                 if (nconns < 0) {
 129                         kfree(node);
 130                         return nconns;
 131                 }
 132         } else {
 133                 nconns = 0;
 134         }
 135         if (nconns <= ARRAY_SIZE(node->slist))
 136                 node->conn_list = node->slist;
 137         else {
 138                 node->conn_list = kmalloc(sizeof(hda_nid_t) * nconns,
 139                                           GFP_KERNEL);
 140                 if (! node->conn_list) {
 141                         snd_printk(KERN_ERR "hda-generic: cannot malloc\n");
 142                         kfree(node);
 143                         return -ENOMEM;
 144                 }
 145         }
 146         memcpy(node->conn_list, conn_list, nconns * sizeof(hda_nid_t));
 147         node->nconns = nconns;
 148
 149         if (node->type == AC_WID_PIN) {
 150                 node->pin_caps = snd_hda_query_pin_caps(codec, node->nid);
 151                 node->pin_ctl = snd_hda_codec_read(codec, node->nid, 0, AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
 152                 node->def_cfg = snd_hda_codec_get_pincfg(codec, node->nid);
 153         }
 154
 155         if (node->wid_caps & AC_WCAP_OUT_AMP) {
 156                 if (node->wid_caps & AC_WCAP_AMP_OVRD)
 157                         node->amp_out_caps = snd_hda_param_read(codec, node->nid, AC_PAR_AMP_OUT_CAP);
 158                 if (! node->amp_out_caps)
 159                         node->amp_out_caps = spec->def_amp_out_caps;
 160         }
 161         if (node->wid_caps & AC_WCAP_IN_AMP) {
 162                 if (node->wid_caps & AC_WCAP_AMP_OVRD)
 163                         node->amp_in_caps = snd_hda_param_read(codec, node->nid, AC_PAR_AMP_IN_CAP);
 164                 if (! node->amp_in_caps)
 165                         node->amp_in_caps = spec->def_amp_in_caps;
 166         }
 167         list_add_tail(&node->list, &spec->nid_list);
 168         return 0;
 169 }
 170
 171 /*
 172  * build the AFG subtree
 173  */
 174 static int build_afg_tree(struct hda_codec *codec)
 175 {
 176         struct hda_gspec *spec = codec->spec;
 177         int i, nodes, err;
 178         hda_nid_t nid;
 179
 180         if (snd_BUG_ON(!spec))
 181                 return -EINVAL;
 182
 183         spec->def_amp_out_caps = snd_hda_param_read(codec, codec->afg, AC_PAR_AMP_OUT_CAP);
 184         spec->def_amp_in_caps = snd_hda_param_read(codec, codec->afg, AC_PAR_AMP_IN_CAP);
 185
 186         nodes = snd_hda_get_sub_nodes(codec, codec->afg, &nid);
 187         if (! nid || nodes < 0) {
 188                 printk(KERN_ERR "Invalid AFG subtree\n");
 189                 return -EINVAL;
 190         }
 191
 192         /* parse all nodes belonging to the AFG */
 193         for (i = 0; i < nodes; i++, nid++) {
 194                 if ((err = add_new_node(codec, spec, nid)) < 0)
 195                         return err;
 196         }
 197
 198         return 0;
 199 }
 200
 201
 202 /*
 203  * look for the node record for the given NID
 204  */
 205 /* FIXME: should avoid the braindead linear search */
 206 static struct hda_gnode *hda_get_node(struct hda_gspec *spec, hda_nid_t nid)
 207 {
 208         struct hda_gnode *node;
 209
 210         list_for_each_entry(node, &spec->nid_list, list) {
 211                 if (node->nid == nid)
 212                         return node;
 213         }
 214         return NULL;
 215 }
 216
 217 /*
 218  * unmute (and set max vol) the output amplifier
 219  */
 220 static int unmute_output(struct hda_codec *codec, struct hda_gnode *node)
 221 {
 222         unsigned int val, ofs;
 223         snd_printdd("UNMUTE OUT: NID=0x%x\n", node->nid);
 224         val = (node->amp_out_caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT;
 225         ofs = (node->amp_out_caps & AC_AMPCAP_OFFSET) >> AC_AMPCAP_OFFSET_SHIFT;
 226         if (val >= ofs)
 227                 val -= ofs;
 228         snd_hda_codec_amp_stereo(codec, node->nid, HDA_OUTPUT, 0, 0xff, val);
 229         return 0;
 230 }
 231
 232 /*
 233  * unmute (and set max vol) the input amplifier
 234  */
 235 static int unmute_input(struct hda_codec *codec, struct hda_gnode *node, unsigned int index)
 236 {
 237         unsigned int val, ofs;
 238         snd_printdd("UNMUTE IN: NID=0x%x IDX=0x%x\n", node->nid, index);
 239         val = (node->amp_in_caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT;
 240         ofs = (node->amp_in_caps & AC_AMPCAP_OFFSET) >> AC_AMPCAP_OFFSET_SHIFT;
 241         if (val >= ofs)
 242                 val -= ofs;
 243         snd_hda_codec_amp_stereo(codec, node->nid, HDA_INPUT, index, 0xff, val);
 244         return 0;
 245 }
 246
 247 /*
 248  * select the input connection of the given node.
 249  */
 250 static int select_input_connection(struct hda_codec *codec, struct hda_gnode *node,
 251                                    unsigned int index)
 252 {
 253         snd_printdd("CONNECT: NID=0x%x IDX=0x%x\n", node->nid, index);
 254         return snd_hda_codec_write_cache(codec, node->nid, 0,
 255                                          AC_VERB_SET_CONNECT_SEL, index);
 256 }
 257
 258 /*
 259  * clear checked flag of each node in the node list
 260  */
 261 static void clear_check_flags(struct hda_gspec *spec)
 262 {
 263         struct hda_gnode *node;
 264
 265         list_for_each_entry(node, &spec->nid_list, list) {
 266                 node->checked = 0;
 267         }
 268 }
 269
 270 /*
 271  * parse the output path recursively until reach to an audio output widget
 272  *
 273  * returns 0 if not found, 1 if found, or a negative error code.
 274  */
 275 static int parse_output_path(struct hda_codec *codec, struct hda_gspec *spec,
 276                              struct hda_gnode *node, int dac_idx)
 277 {
 278         int i, err;
 279         struct hda_gnode *child;
 280
 281         if (node->checked)
 282                 return 0;
 283
 284         node->checked = 1;
 285         if (node->type == AC_WID_AUD_OUT) {
 286                 if (node->wid_caps & AC_WCAP_DIGITAL) {
 287                         snd_printdd("Skip Digital OUT node %x\n", node->nid);
 288                         return 0;
 289                 }
 290                 snd_printdd("AUD_OUT found %x\n", node->nid);
 291                 if (spec->dac_node[dac_idx]) {
 292                         /* already DAC node is assigned, just unmute & connect */
 293                         return node == spec->dac_node[dac_idx];
 294                 }
 295                 spec->dac_node[dac_idx] = node;
 296                 if ((node->wid_caps & AC_WCAP_OUT_AMP) &&
 297                     spec->pcm_vol_nodes < MAX_PCM_VOLS) {
 298                         spec->pcm_vol[spec->pcm_vol_nodes].node = node;
 299                         spec->pcm_vol[spec->pcm_vol_nodes].index = 0;
 300                         spec->pcm_vol_nodes++;
 301                 }
 302                 return 1; /* found */
 303         }
 304
 305         for (i = 0; i < node->nconns; i++) {
 306                 child = hda_get_node(spec, node->conn_list[i]);
 307                 if (! child)
 308                         continue;
 309                 err = parse_output_path(codec, spec, child, dac_idx);
 310                 if (err < 0)
 311                         return err;
 312                 else if (err > 0) {
 313                         /* found one,
 314                          * select the path, unmute both input and output
 315                          */
 316                         if (node->nconns > 1)
 317                                 select_input_connection(codec, node, i);
 318                         unmute_input(codec, node, i);
 319                         unmute_output(codec, node);
 320                         if (spec->dac_node[dac_idx] &&
 321                             spec->pcm_vol_nodes < MAX_PCM_VOLS &&
 322                             !(spec->dac_node[dac_idx]->wid_caps &
 323                               AC_WCAP_OUT_AMP)) {
 324                                 if ((node->wid_caps & AC_WCAP_IN_AMP) ||
 325                                     (node->wid_caps & AC_WCAP_OUT_AMP)) {
 326                                         int n = spec->pcm_vol_nodes;
 327                                         spec->pcm_vol[n].node = node;
 328                                         spec->pcm_vol[n].index = i;
 329                                         spec->pcm_vol_nodes++;
 330                                 }
 331                         }
 332                         return 1;
 333                 }
 334         }
 335         return 0;
 336 }
 337
 338 /*
 339  * Look for the output PIN widget with the given jack type
 340  * and parse the output path to that PIN.
 341  *
 342  * Returns the PIN node when the path to DAC is established.
 343  */
 344 static struct hda_gnode *parse_output_jack(struct hda_codec *codec,
 345                                            struct hda_gspec *spec,
 346                                            int jack_type)
 347 {
 348         struct hda_gnode *node;
 349         int err;
 350
 351         list_for_each_entry(node, &spec->nid_list, list) {
 352                 if (node->type != AC_WID_PIN)
 353                         continue;
 354                 /* output capable? */
 355                 if (! (node->pin_caps & AC_PINCAP_OUT))
 356                         continue;
 357                 if (defcfg_port_conn(node) == AC_JACK_PORT_NONE)
 358                         continue; /* unconnected */
 359                 if (jack_type >= 0) {
 360                         if (jack_type != defcfg_type(node))
 361                                 continue;
 362                         if (node->wid_caps & AC_WCAP_DIGITAL)
 363                                 continue; /* skip SPDIF */
 364                 } else {
 365                         /* output as default? */
 366                         if (! (node->pin_ctl & AC_PINCTL_OUT_EN))
 367                                 continue;
 368                 }
 369                 clear_check_flags(spec);
 370                 err = parse_output_path(codec, spec, node, 0);
 371                 if (err < 0)
 372                         return NULL;
 373                 if (! err && spec->out_pin_node[0]) {
 374                         err = parse_output_path(codec, spec, node, 1);
 375                         if (err < 0)
 376                                 return NULL;
 377                 }
 378                 if (err > 0) {
 379                         /* unmute the PIN output */
 380                         unmute_output(codec, node);
 381                         /* set PIN-Out enable */
 382                         snd_hda_codec_write_cache(codec, node->nid, 0,
 383                                             AC_VERB_SET_PIN_WIDGET_CONTROL,
 384                                             AC_PINCTL_OUT_EN |
 385                                             ((node->pin_caps & AC_PINCAP_HP_DRV) ?
 386                                              AC_PINCTL_HP_EN : 0));
 387                         return node;
 388                 }
 389         }
 390         return NULL;
 391 }
 392
 393
 394 /*
 395  * parse outputs
 396  */
 397 static int parse_output(struct hda_codec *codec)
 398 {
 399         struct hda_gspec *spec = codec->spec;
 400         struct hda_gnode *node;
 401
 402         /*
 403          * Look for the output PIN widget
 404          */
 405         /* first, look for the line-out pin */
 406         node = parse_output_jack(codec, spec, AC_JACK_LINE_OUT);
 407         if (node) /* found, remember the PIN node */
 408                 spec->out_pin_node[0] = node;
 409         else {
 410                 /* if no line-out is found, try speaker out */
 411                 node = parse_output_jack(codec, spec, AC_JACK_SPEAKER);
 412                 if (node)
 413                         spec->out_pin_node[0] = node;
 414         }
 415         /* look for the HP-out pin */
 416         node = parse_output_jack(codec, spec, AC_JACK_HP_OUT);
 417         if (node) {
 418                 if (! spec->out_pin_node[0])
 419                         spec->out_pin_node[0] = node;
 420                 else
 421                         spec->out_pin_node[1] = node;
 422         }
 423
 424         if (! spec->out_pin_node[0]) {
 425                 /* no line-out or HP pins found,
 426                  * then choose for the first output pin
 427                  */
 428                 spec->out_pin_node[0] = parse_output_jack(codec, spec, -1);
 429                 if (! spec->out_pin_node[0])
 430                         snd_printd("hda_generic: no proper output path found\n");
 431         }
 432
 433         return 0;
 434 }
 435
 436 /*
 437  * input MUX
 438  */
 439
 440 /* control callbacks */
 441 static int capture_source_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 442 {
 443         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 444         struct hda_gspec *spec = codec->spec;
 445         return snd_hda_input_mux_info(&spec->input_mux, uinfo);
 446 }
 447
 448 static int capture_source_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 449 {
 450         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 451         struct hda_gspec *spec = codec->spec;
 452
 453         ucontrol->value.enumerated.item[0] = spec->cur_cap_src;
 454         return 0;
 455 }
 456
 457 static int capture_source_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 458 {
 459         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 460         struct hda_gspec *spec = codec->spec;
 461         return snd_hda_input_mux_put(codec, &spec->input_mux, ucontrol,
 462                                      spec->adc_node->nid, &spec->cur_cap_src);
 463 }
 464
 465 /*
 466  * return the string name of the given input PIN widget
 467  */
 468 static const char *get_input_type(struct hda_gnode *node, unsigned int *pinctl)
 469 {
 470         unsigned int location = defcfg_location(node);
 471         switch (defcfg_type(node)) {
 472         case AC_JACK_LINE_IN:
 473                 if ((location & 0x0f) == AC_JACK_LOC_FRONT)
 474                         return "Front Line";
 475                 return "Line";
 476         case AC_JACK_CD:
 477 #if 0
 478                 if (pinctl)
 479                         *pinctl |= AC_PINCTL_VREF_GRD;
 480 #endif
 481                 return "CD";
 482         case AC_JACK_AUX:
 483                 if ((location & 0x0f) == AC_JACK_LOC_FRONT)
 484                         return "Front Aux";
 485                 return "Aux";
 486         case AC_JACK_MIC_IN:
 487                 if (pinctl &&
 488                     (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, int idx)
 509 {
 510         int i, err;
 511         unsigned int pinctl;
 512         const char *type;
 513
 514         if (node->checked)
 515                 return 0;
 516
 517         node->checked = 1;
 518         if (node->type != AC_WID_PIN) {
 519                 for (i = 0; i < node->nconns; i++) {
 520                         struct hda_gnode *child;
 521                         child = hda_get_node(spec, node->conn_list[i]);
 522                         if (! child)
 523                                 continue;
 524                         err = parse_adc_sub_nodes(codec, spec, child, idx);
 525                         if (err < 0)
 526                                 return err;
 527                         if (err > 0) {
 528                                 /* found one,
 529                                  * select the path, unmute both input and output
 530                                  */
 531                                 if (node->nconns > 1)
 532                                         select_input_connection(codec, node, i);
 533                                 unmute_input(codec, node, i);
 534                                 unmute_output(codec, node);
 535                                 return err;
 536                         }
 537                 }
 538                 return 0;
 539         }
 540
 541         /* input capable? */
 542         if (! (node->pin_caps & AC_PINCAP_IN))
 543                 return 0;
 544
 545         if (defcfg_port_conn(node) == AC_JACK_PORT_NONE)
 546                 return 0; /* unconnected */
 547
 548         if (node->wid_caps & AC_WCAP_DIGITAL)
 549                 return 0; /* skip SPDIF */
 550
 551         if (spec->input_mux.num_items >= HDA_MAX_NUM_INPUTS) {
 552                 snd_printk(KERN_ERR "hda_generic: Too many items for capture\n");
 553                 return -EINVAL;
 554         }
 555
 556         pinctl = AC_PINCTL_IN_EN;
 557         /* create a proper capture source label */
 558         type = get_input_type(node, &pinctl);
 559         if (! type) {
 560                 /* input as default? */
 561                 if (! (node->pin_ctl & AC_PINCTL_IN_EN))
 562                         return 0;
 563                 type = "Input";
 564         }
 565         snd_hda_add_imux_item(&spec->input_mux, type, idx, NULL);
 566
 567         /* unmute the PIN external input */
 568         unmute_input(codec, node, 0); /* index = 0? */
 569         /* set PIN-In enable */
 570         snd_hda_codec_write_cache(codec, node->nid, 0,
 571                                   AC_VERB_SET_PIN_WIDGET_CONTROL, pinctl);
 572
 573         return 1; /* found */
 574 }
 575
 576 /*
 577  * parse input
 578  */
 579 static int parse_input_path(struct hda_codec *codec, struct hda_gnode *adc_node)
 580 {
 581         struct hda_gspec *spec = codec->spec;
 582         struct hda_gnode *node;
 583         int i, err;
 584
 585         snd_printdd("AUD_IN = %x\n", adc_node->nid);
 586         clear_check_flags(spec);
 587
 588         // awk added - fixed no recording due to muted widget
 589         unmute_input(codec, adc_node, 0);
 590
 591         /*
 592          * check each connection of the ADC
 593          * if it reaches to a proper input PIN, add the path as the
 594          * input path.
 595          */
 596         /* first, check the direct connections to PIN widgets */
 597         for (i = 0; i < adc_node->nconns; i++) {
 598                 node = hda_get_node(spec, adc_node->conn_list[i]);
 599                 if (node && node->type == AC_WID_PIN) {
 600                         err = parse_adc_sub_nodes(codec, spec, node, i);
 601                         if (err < 0)
 602                                 return err;
 603                 }
 604         }
 605         /* ... then check the rests, more complicated connections */
 606         for (i = 0; i < adc_node->nconns; i++) {
 607                 node = hda_get_node(spec, adc_node->conn_list[i]);
 608                 if (node && node->type != AC_WID_PIN) {
 609                         err = parse_adc_sub_nodes(codec, spec, node, i);
 610                         if (err < 0)
 611                                 return err;
 612                 }
 613         }
 614
 615         if (! spec->input_mux.num_items)
 616                 return 0; /* no input path found... */
 617
 618         snd_printdd("[Capture Source] NID=0x%x, #SRC=%d\n", adc_node->nid, spec->input_mux.num_items);
 619         for (i = 0; i < spec->input_mux.num_items; i++)
 620                 snd_printdd("  [%s] IDX=0x%x\n", spec->input_mux.items[i].label,
 621                             spec->input_mux.items[i].index);
 622
 623         spec->adc_node = adc_node;
 624         return 1;
 625 }
 626
 627 /*
 628  * parse input
 629  */
 630 static int parse_input(struct hda_codec *codec)
 631 {
 632         struct hda_gspec *spec = codec->spec;
 633         struct hda_gnode *node;
 634         int err;
 635
 636         /*
 637          * At first we look for an audio input widget.
 638          * If it reaches to certain input PINs, we take it as the
 639          * input path.
 640          */
 641         list_for_each_entry(node, &spec->nid_list, list) {
 642                 if (node->wid_caps & AC_WCAP_DIGITAL)
 643                         continue; /* skip SPDIF */
 644                 if (node->type == AC_WID_AUD_IN) {
 645                         err = parse_input_path(codec, node);
 646                         if (err < 0)
 647                                 return err;
 648                         else if (err > 0)
 649                                 return 0;
 650                 }
 651         }
 652         snd_printd("hda_generic: no proper input path found\n");
 653         return 0;
 654 }
 655
 656 #ifdef CONFIG_SND_HDA_POWER_SAVE
 657 static void add_input_loopback(struct hda_codec *codec, hda_nid_t nid,
 658                                int dir, int idx)
 659 {
 660         struct hda_gspec *spec = codec->spec;
 661         struct hda_amp_list *p;
 662
 663         if (spec->num_loopbacks >= MAX_LOOPBACK_AMPS) {
 664                 snd_printk(KERN_ERR "hda_generic: Too many loopback ctls\n");
 665                 return;
 666         }
 667         p = &spec->loopback_list[spec->num_loopbacks++];
 668         p->nid = nid;
 669         p->dir = dir;
 670         p->idx = idx;
 671         spec->loopback.amplist = spec->loopback_list;
 672 }
 673 #else
 674 #define add_input_loopback(codec,nid,dir,idx)
 675 #endif
 676
 677 /*
 678  * create mixer controls if possible
 679  */
 680 static int create_mixer(struct hda_codec *codec, struct hda_gnode *node,
 681                         unsigned int index, const char *type,
 682                         const char *dir_sfx, int is_loopback)
 683 {
 684         char name[32];
 685         int err;
 686         int created = 0;
 687         struct snd_kcontrol_new knew;
 688
 689         if (type)
 690                 sprintf(name, "%s %s Switch", type, dir_sfx);
 691         else
 692                 sprintf(name, "%s Switch", dir_sfx);
 693         if ((node->wid_caps & AC_WCAP_IN_AMP) &&
 694             (node->amp_in_caps & AC_AMPCAP_MUTE)) {
 695                 knew = (struct snd_kcontrol_new)HDA_CODEC_MUTE(name, node->nid, index, HDA_INPUT);
 696                 if (is_loopback)
 697                         add_input_loopback(codec, node->nid, HDA_INPUT, index);
 698                 snd_printdd("[%s] NID=0x%x, DIR=IN, IDX=0x%x\n", name, node->nid, index);
 699                 err = snd_hda_ctl_add(codec, node->nid,
 700                                         snd_ctl_new1(&knew, codec));
 701                 if (err < 0)
 702                         return err;
 703                 created = 1;
 704         } else if ((node->wid_caps & AC_WCAP_OUT_AMP) &&
 705                    (node->amp_out_caps & AC_AMPCAP_MUTE)) {
 706                 knew = (struct snd_kcontrol_new)HDA_CODEC_MUTE(name, node->nid, 0, HDA_OUTPUT);
 707                 if (is_loopback)
 708                         add_input_loopback(codec, node->nid, HDA_OUTPUT, 0);
 709                 snd_printdd("[%s] NID=0x%x, DIR=OUT\n", name, node->nid);
 710                 err = snd_hda_ctl_add(codec, node->nid,
 711                                         snd_ctl_new1(&knew, codec));
 712                 if (err < 0)
 713                         return err;
 714                 created = 1;
 715         }
 716
 717         if (type)
 718                 sprintf(name, "%s %s Volume", type, dir_sfx);
 719         else
 720                 sprintf(name, "%s Volume", dir_sfx);
 721         if ((node->wid_caps & AC_WCAP_IN_AMP) &&
 722             (node->amp_in_caps & AC_AMPCAP_NUM_STEPS)) {
 723                 knew = (struct snd_kcontrol_new)HDA_CODEC_VOLUME(name, node->nid, index, HDA_INPUT);
 724                 snd_printdd("[%s] NID=0x%x, DIR=IN, IDX=0x%x\n", name, node->nid, index);
 725                 err = snd_hda_ctl_add(codec, node->nid,
 726                                         snd_ctl_new1(&knew, codec));
 727                 if (err < 0)
 728                         return err;
 729                 created = 1;
 730         } else if ((node->wid_caps & AC_WCAP_OUT_AMP) &&
 731                    (node->amp_out_caps & AC_AMPCAP_NUM_STEPS)) {
 732                 knew = (struct snd_kcontrol_new)HDA_CODEC_VOLUME(name, node->nid, 0, HDA_OUTPUT);
 733                 snd_printdd("[%s] NID=0x%x, DIR=OUT\n", name, node->nid);
 734                 err = snd_hda_ctl_add(codec, node->nid,
 735                                         snd_ctl_new1(&knew, codec));
 736                 if (err < 0)
 737                         return err;
 738                 created = 1;
 739         }
 740
 741         return created;
 742 }
 743
 744 /*
 745  * check whether the controls with the given name and direction suffix already exist
 746  */
 747 static int check_existing_control(struct hda_codec *codec, const char *type, const char *dir)
 748 {
 749         struct snd_ctl_elem_id id;
 750         memset(&id, 0, sizeof(id));
 751         sprintf(id.name, "%s %s Volume", type, dir);
 752         id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
 753         if (snd_ctl_find_id(codec->bus->card, &id))
 754                 return 1;
 755         sprintf(id.name, "%s %s Switch", type, dir);
 756         id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
 757         if (snd_ctl_find_id(codec->bus->card, &id))
 758                 return 1;
 759         return 0;
 760 }
 761
 762 /*
 763  * build output mixer controls
 764  */
 765 static int create_output_mixers(struct hda_codec *codec,
 766                                 const char * const *names)
 767 {
 768         struct hda_gspec *spec = codec->spec;
 769         int i, err;
 770
 771         for (i = 0; i < spec->pcm_vol_nodes; i++) {
 772                 err = create_mixer(codec, spec->pcm_vol[i].node,
 773                                    spec->pcm_vol[i].index,
 774                                    names[i], "Playback", 0);
 775                 if (err < 0)
 776                         return err;
 777         }
 778         return 0;
 779 }
 780
 781 static int build_output_controls(struct hda_codec *codec)
 782 {
 783         struct hda_gspec *spec = codec->spec;
 784         static const char * const types_speaker[] = { "Speaker", "Headphone" };
 785         static const char * const types_line[] = { "Front", "Headphone" };
 786
 787         switch (spec->pcm_vol_nodes) {
 788         case 1:
 789                 return create_mixer(codec, spec->pcm_vol[0].node,
 790                                     spec->pcm_vol[0].index,
 791                                     "Master", "Playback", 0);
 792         case 2:
 793                 if (defcfg_type(spec->out_pin_node[0]) == AC_JACK_SPEAKER)
 794                         return create_output_mixers(codec, types_speaker);
 795                 else
 796                         return create_output_mixers(codec, types_line);
 797         }
 798         return 0;
 799 }
 800
 801 /* create capture volume/switch */
 802 static int build_input_controls(struct hda_codec *codec)
 803 {
 804         struct hda_gspec *spec = codec->spec;
 805         struct hda_gnode *adc_node = spec->adc_node;
 806         int i, err;
 807         static struct snd_kcontrol_new cap_sel = {
 808                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 809                 .name = "Capture Source",
 810                 .info = capture_source_info,
 811                 .get = capture_source_get,
 812                 .put = capture_source_put,
 813         };
 814
 815         if (! adc_node || ! spec->input_mux.num_items)
 816                 return 0; /* not found */
 817
 818         spec->cur_cap_src = 0;
 819         select_input_connection(codec, adc_node,
 820                                 spec->input_mux.items[0].index);
 821
 822         /* create capture volume and switch controls if the ADC has an amp */
 823         /* do we have only a single item? */
 824         if (spec->input_mux.num_items == 1) {
 825                 err = create_mixer(codec, adc_node,
 826                                    spec->input_mux.items[0].index,
 827                                    NULL, "Capture", 0);
 828                 if (err < 0)
 829                         return err;
 830                 return 0;
 831         }
 832
 833         /* create input MUX if multiple sources are available */
 834         err = snd_hda_ctl_add(codec, spec->adc_node->nid,
 835                               snd_ctl_new1(&cap_sel, codec));
 836         if (err < 0)
 837                 return err;
 838
 839         /* no volume control? */
 840         if (! (adc_node->wid_caps & AC_WCAP_IN_AMP) ||
 841             ! (adc_node->amp_in_caps & AC_AMPCAP_NUM_STEPS))
 842                 return 0;
 843
 844         for (i = 0; i < spec->input_mux.num_items; i++) {
 845                 struct snd_kcontrol_new knew;
 846                 char name[32];
 847                 sprintf(name, "%s Capture Volume",
 848                         spec->input_mux.items[i].label);
 849                 knew = (struct snd_kcontrol_new)
 850                         HDA_CODEC_VOLUME(name, adc_node->nid,
 851                                          spec->input_mux.items[i].index,
 852                                          HDA_INPUT);
 853                 err = snd_hda_ctl_add(codec, adc_node->nid,
 854                                         snd_ctl_new1(&knew, codec));
 855                 if (err < 0)
 856                         return err;
 857         }
 858
 859         return 0;
 860 }
 861
 862
 863 /*
 864  * parse the nodes recursively until reach to the output PIN.
 865  *
 866  * returns 0 - if not found,
 867  *         1 - if found, but no mixer is created
 868  *         2 - if found and mixer was already created, (just skip)
 869  *         a negative error code
 870  */
 871 static int parse_loopback_path(struct hda_codec *codec, struct hda_gspec *spec,
 872                                struct hda_gnode *node, struct hda_gnode *dest_node,
 873                                const char *type)
 874 {
 875         int i, err;
 876
 877         if (node->checked)
 878                 return 0;
 879
 880         node->checked = 1;
 881         if (node == dest_node) {
 882                 /* loopback connection found */
 883                 return 1;
 884         }
 885
 886         for (i = 0; i < node->nconns; i++) {
 887                 struct hda_gnode *child = hda_get_node(spec, node->conn_list[i]);
 888                 if (! child)
 889                         continue;
 890                 err = parse_loopback_path(codec, spec, child, dest_node, type);
 891                 if (err < 0)
 892                         return err;
 893                 else if (err >= 1) {
 894                         if (err == 1) {
 895                                 err = create_mixer(codec, node, i, type,
 896                                                    "Playback", 1);
 897                                 if (err < 0)
 898                                         return err;
 899                                 if (err > 0)
 900                                         return 2; /* ok, created */
 901                                 /* not created, maybe in the lower path */
 902                                 err = 1;
 903                         }
 904                         /* connect and unmute */
 905                         if (node->nconns > 1)
 906                                 select_input_connection(codec, node, i);
 907                         unmute_input(codec, node, i);
 908                         unmute_output(codec, node);
 909                         return err;
 910                 }
 911         }
 912         return 0;
 913 }
 914
 915 /*
 916  * parse the tree and build the loopback controls
 917  */
 918 static int build_loopback_controls(struct hda_codec *codec)
 919 {
 920         struct hda_gspec *spec = codec->spec;
 921         struct hda_gnode *node;
 922         int err;
 923         const char *type;
 924
 925         if (! spec->out_pin_node[0])
 926                 return 0;
 927
 928         list_for_each_entry(node, &spec->nid_list, list) {
 929                 if (node->type != AC_WID_PIN)
 930                         continue;
 931                 /* input capable? */
 932                 if (! (node->pin_caps & AC_PINCAP_IN))
 933                         return 0;
 934                 type = get_input_type(node, NULL);
 935                 if (type) {
 936                         if (check_existing_control(codec, type, "Playback"))
 937                                 continue;
 938                         clear_check_flags(spec);
 939                         err = parse_loopback_path(codec, spec,
 940                                                   spec->out_pin_node[0],
 941                                                   node, type);
 942                         if (err < 0)
 943                                 return err;
 944                         if (! err)
 945                                 continue;
 946                 }
 947         }
 948         return 0;
 949 }
 950
 951 /*
 952  * build mixer controls
 953  */
 954 static int build_generic_controls(struct hda_codec *codec)
 955 {
 956         int err;
 957
 958         if ((err = build_input_controls(codec)) < 0 ||
 959             (err = build_output_controls(codec)) < 0 ||
 960             (err = build_loopback_controls(codec)) < 0)
 961                 return err;
 962
 963         return 0;
 964 }
 965
 966 /*
 967  * PCM
 968  */
 969 static struct hda_pcm_stream generic_pcm_playback = {
 970         .substreams = 1,
 971         .channels_min = 2,
 972         .channels_max = 2,
 973 };
 974
 975 static int generic_pcm2_prepare(struct hda_pcm_stream *hinfo,
 976                                 struct hda_codec *codec,
 977                                 unsigned int stream_tag,
 978                                 unsigned int format,
 979                                 struct snd_pcm_substream *substream)
 980 {
 981         struct hda_gspec *spec = codec->spec;
 982
 983         snd_hda_codec_setup_stream(codec, hinfo->nid, stream_tag, 0, format);
 984         snd_hda_codec_setup_stream(codec, spec->dac_node[1]->nid,
 985                                    stream_tag, 0, format);
 986         return 0;
 987 }
 988
 989 static int generic_pcm2_cleanup(struct hda_pcm_stream *hinfo,
 990                                 struct hda_codec *codec,
 991                                 struct snd_pcm_substream *substream)
 992 {
 993         struct hda_gspec *spec = codec->spec;
 994
 995         snd_hda_codec_cleanup_stream(codec, hinfo->nid);
 996         snd_hda_codec_cleanup_stream(codec, spec->dac_node[1]->nid);
 997         return 0;
 998 }
 999
1000 static int build_generic_pcms(struct hda_codec *codec)
1001 {
1002         struct hda_gspec *spec = codec->spec;
1003         struct hda_pcm *info = &spec->pcm_rec;
1004
1005         if (! spec->dac_node[0] && ! spec->adc_node) {
1006                 snd_printd("hda_generic: no PCM found\n");
1007                 return 0;
1008         }
1009
1010         codec->num_pcms = 1;
1011         codec->pcm_info = info;
1012
1013         info->name = "HDA Generic";
1014         if (spec->dac_node[0]) {
1015                 info->stream[0] = generic_pcm_playback;
1016                 info->stream[0].nid = spec->dac_node[0]->nid;
1017                 if (spec->dac_node[1]) {
1018                         info->stream[0].ops.prepare = generic_pcm2_prepare;
1019                         info->stream[0].ops.cleanup = generic_pcm2_cleanup;
1020                 }
1021         }
1022         if (spec->adc_node) {
1023                 info->stream[1] = generic_pcm_playback;
1024                 info->stream[1].nid = spec->adc_node->nid;
1025         }
1026
1027         return 0;
1028 }
1029
1030 #ifdef CONFIG_SND_HDA_POWER_SAVE
1031 static int generic_check_power_status(struct hda_codec *codec, hda_nid_t nid)
1032 {
1033         struct hda_gspec *spec = codec->spec;
1034         return snd_hda_check_amp_list_power(codec, &spec->loopback, nid);
1035 }
1036 #endif
1037
1038
1039 /*
1040  */
1041 static struct hda_codec_ops generic_patch_ops = {
1042         .build_controls = build_generic_controls,
1043         .build_pcms = build_generic_pcms,
1044         .free = snd_hda_generic_free,
1045 #ifdef CONFIG_SND_HDA_POWER_SAVE
1046         .check_power_status = generic_check_power_status,
1047 #endif
1048 };
1049
1050 /*
1051  * the generic parser
1052  */
1053 int snd_hda_parse_generic_codec(struct hda_codec *codec)
1054 {
1055         struct hda_gspec *spec;
1056         int err;
1057
1058         if(!codec->afg)
1059                 return 0;
1060
1061         spec = kzalloc(sizeof(*spec), GFP_KERNEL);
1062         if (spec == NULL) {
1063                 printk(KERN_ERR "hda_generic: can't allocate spec\n");
1064                 return -ENOMEM;
1065         }
1066         codec->spec = spec;
1067         INIT_LIST_HEAD(&spec->nid_list);
1068
1069         if ((err = build_afg_tree(codec)) < 0)
1070                 goto error;
1071
1072         if ((err = parse_input(codec)) < 0 ||
1073             (err = parse_output(codec)) < 0)
1074                 goto error;
1075
1076         codec->patch_ops = generic_patch_ops;
1077
1078         return 0;
1079
1080  error:
1081         snd_hda_generic_free(codec);
1082         return err;
1083 }
1084 EXPORT_SYMBOL(snd_hda_parse_generic_codec);