hda_generic.c revision a22d543a95e82e5ad0ee1a44aad54fd6b6bf52a8
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 */ 30struct 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 49struct pcm_vol { 50 struct hda_gnode *node; /* Node for PCM volume */ 51 unsigned int index; /* connection of PCM volume */ 52}; 53 54struct 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 char cap_labels[HDA_MAX_NUM_INPUTS][16]; 65 66 unsigned int def_amp_in_caps; 67 unsigned int def_amp_out_caps; 68 69 struct hda_pcm pcm_rec; /* PCM information */ 70 71 struct list_head nid_list; /* list of widgets */ 72 73#ifdef CONFIG_SND_HDA_POWER_SAVE 74#define MAX_LOOPBACK_AMPS 7 75 struct hda_loopback_check loopback; 76 int num_loopbacks; 77 struct hda_amp_list loopback_list[MAX_LOOPBACK_AMPS + 1]; 78#endif 79}; 80 81/* 82 * retrieve the default device type from the default config value 83 */ 84#define defcfg_type(node) (((node)->def_cfg & AC_DEFCFG_DEVICE) >> \ 85 AC_DEFCFG_DEVICE_SHIFT) 86#define defcfg_location(node) (((node)->def_cfg & AC_DEFCFG_LOCATION) >> \ 87 AC_DEFCFG_LOCATION_SHIFT) 88#define defcfg_port_conn(node) (((node)->def_cfg & AC_DEFCFG_PORT_CONN) >> \ 89 AC_DEFCFG_PORT_CONN_SHIFT) 90 91/* 92 * destructor 93 */ 94static void snd_hda_generic_free(struct hda_codec *codec) 95{ 96 struct hda_gspec *spec = codec->spec; 97 struct hda_gnode *node, *n; 98 99 if (! spec) 100 return; 101 /* free all widgets */ 102 list_for_each_entry_safe(node, n, &spec->nid_list, list) { 103 if (node->conn_list != node->slist) 104 kfree(node->conn_list); 105 kfree(node); 106 } 107 kfree(spec); 108} 109 110 111/* 112 * add a new widget node and read its attributes 113 */ 114static int add_new_node(struct hda_codec *codec, struct hda_gspec *spec, hda_nid_t nid) 115{ 116 struct hda_gnode *node; 117 int nconns; 118 hda_nid_t conn_list[HDA_MAX_CONNECTIONS]; 119 120 node = kzalloc(sizeof(*node), GFP_KERNEL); 121 if (node == NULL) 122 return -ENOMEM; 123 node->nid = nid; 124 node->wid_caps = get_wcaps(codec, nid); 125 node->type = get_wcaps_type(node->wid_caps); 126 if (node->wid_caps & AC_WCAP_CONN_LIST) { 127 nconns = snd_hda_get_connections(codec, nid, conn_list, 128 HDA_MAX_CONNECTIONS); 129 if (nconns < 0) { 130 kfree(node); 131 return nconns; 132 } 133 } else { 134 nconns = 0; 135 } 136 if (nconns <= ARRAY_SIZE(node->slist)) 137 node->conn_list = node->slist; 138 else { 139 node->conn_list = kmalloc(sizeof(hda_nid_t) * nconns, 140 GFP_KERNEL); 141 if (! node->conn_list) { 142 snd_printk(KERN_ERR "hda-generic: cannot malloc\n"); 143 kfree(node); 144 return -ENOMEM; 145 } 146 } 147 memcpy(node->conn_list, conn_list, nconns * sizeof(hda_nid_t)); 148 node->nconns = nconns; 149 150 if (node->type == AC_WID_PIN) { 151 node->pin_caps = snd_hda_query_pin_caps(codec, node->nid); 152 node->pin_ctl = snd_hda_codec_read(codec, node->nid, 0, AC_VERB_GET_PIN_WIDGET_CONTROL, 0); 153 node->def_cfg = snd_hda_codec_get_pincfg(codec, node->nid); 154 } 155 156 if (node->wid_caps & AC_WCAP_OUT_AMP) { 157 if (node->wid_caps & AC_WCAP_AMP_OVRD) 158 node->amp_out_caps = snd_hda_param_read(codec, node->nid, AC_PAR_AMP_OUT_CAP); 159 if (! node->amp_out_caps) 160 node->amp_out_caps = spec->def_amp_out_caps; 161 } 162 if (node->wid_caps & AC_WCAP_IN_AMP) { 163 if (node->wid_caps & AC_WCAP_AMP_OVRD) 164 node->amp_in_caps = snd_hda_param_read(codec, node->nid, AC_PAR_AMP_IN_CAP); 165 if (! node->amp_in_caps) 166 node->amp_in_caps = spec->def_amp_in_caps; 167 } 168 list_add_tail(&node->list, &spec->nid_list); 169 return 0; 170} 171 172/* 173 * build the AFG subtree 174 */ 175static int build_afg_tree(struct hda_codec *codec) 176{ 177 struct hda_gspec *spec = codec->spec; 178 int i, nodes, err; 179 hda_nid_t nid; 180 181 if (snd_BUG_ON(!spec)) 182 return -EINVAL; 183 184 spec->def_amp_out_caps = snd_hda_param_read(codec, codec->afg, AC_PAR_AMP_OUT_CAP); 185 spec->def_amp_in_caps = snd_hda_param_read(codec, codec->afg, AC_PAR_AMP_IN_CAP); 186 187 nodes = snd_hda_get_sub_nodes(codec, codec->afg, &nid); 188 if (! nid || nodes < 0) { 189 printk(KERN_ERR "Invalid AFG subtree\n"); 190 return -EINVAL; 191 } 192 193 /* parse all nodes belonging to the AFG */ 194 for (i = 0; i < nodes; i++, nid++) { 195 if ((err = add_new_node(codec, spec, nid)) < 0) 196 return err; 197 } 198 199 return 0; 200} 201 202 203/* 204 * look for the node record for the given NID 205 */ 206/* FIXME: should avoid the braindead linear search */ 207static struct hda_gnode *hda_get_node(struct hda_gspec *spec, hda_nid_t nid) 208{ 209 struct hda_gnode *node; 210 211 list_for_each_entry(node, &spec->nid_list, list) { 212 if (node->nid == nid) 213 return node; 214 } 215 return NULL; 216} 217 218/* 219 * unmute (and set max vol) the output amplifier 220 */ 221static int unmute_output(struct hda_codec *codec, struct hda_gnode *node) 222{ 223 unsigned int val, ofs; 224 snd_printdd("UNMUTE OUT: NID=0x%x\n", node->nid); 225 val = (node->amp_out_caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT; 226 ofs = (node->amp_out_caps & AC_AMPCAP_OFFSET) >> AC_AMPCAP_OFFSET_SHIFT; 227 if (val >= ofs) 228 val -= ofs; 229 snd_hda_codec_amp_stereo(codec, node->nid, HDA_OUTPUT, 0, 0xff, val); 230 return 0; 231} 232 233/* 234 * unmute (and set max vol) the input amplifier 235 */ 236static int unmute_input(struct hda_codec *codec, struct hda_gnode *node, unsigned int index) 237{ 238 unsigned int val, ofs; 239 snd_printdd("UNMUTE IN: NID=0x%x IDX=0x%x\n", node->nid, index); 240 val = (node->amp_in_caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT; 241 ofs = (node->amp_in_caps & AC_AMPCAP_OFFSET) >> AC_AMPCAP_OFFSET_SHIFT; 242 if (val >= ofs) 243 val -= ofs; 244 snd_hda_codec_amp_stereo(codec, node->nid, HDA_INPUT, index, 0xff, val); 245 return 0; 246} 247 248/* 249 * select the input connection of the given node. 250 */ 251static int select_input_connection(struct hda_codec *codec, struct hda_gnode *node, 252 unsigned int index) 253{ 254 snd_printdd("CONNECT: NID=0x%x IDX=0x%x\n", node->nid, index); 255 return snd_hda_codec_write_cache(codec, node->nid, 0, 256 AC_VERB_SET_CONNECT_SEL, index); 257} 258 259/* 260 * clear checked flag of each node in the node list 261 */ 262static void clear_check_flags(struct hda_gspec *spec) 263{ 264 struct hda_gnode *node; 265 266 list_for_each_entry(node, &spec->nid_list, list) { 267 node->checked = 0; 268 } 269} 270 271/* 272 * parse the output path recursively until reach to an audio output widget 273 * 274 * returns 0 if not found, 1 if found, or a negative error code. 275 */ 276static int parse_output_path(struct hda_codec *codec, struct hda_gspec *spec, 277 struct hda_gnode *node, int dac_idx) 278{ 279 int i, err; 280 struct hda_gnode *child; 281 282 if (node->checked) 283 return 0; 284 285 node->checked = 1; 286 if (node->type == AC_WID_AUD_OUT) { 287 if (node->wid_caps & AC_WCAP_DIGITAL) { 288 snd_printdd("Skip Digital OUT node %x\n", node->nid); 289 return 0; 290 } 291 snd_printdd("AUD_OUT found %x\n", node->nid); 292 if (spec->dac_node[dac_idx]) { 293 /* already DAC node is assigned, just unmute & connect */ 294 return node == spec->dac_node[dac_idx]; 295 } 296 spec->dac_node[dac_idx] = node; 297 if ((node->wid_caps & AC_WCAP_OUT_AMP) && 298 spec->pcm_vol_nodes < MAX_PCM_VOLS) { 299 spec->pcm_vol[spec->pcm_vol_nodes].node = node; 300 spec->pcm_vol[spec->pcm_vol_nodes].index = 0; 301 spec->pcm_vol_nodes++; 302 } 303 return 1; /* found */ 304 } 305 306 for (i = 0; i < node->nconns; i++) { 307 child = hda_get_node(spec, node->conn_list[i]); 308 if (! child) 309 continue; 310 err = parse_output_path(codec, spec, child, dac_idx); 311 if (err < 0) 312 return err; 313 else if (err > 0) { 314 /* found one, 315 * select the path, unmute both input and output 316 */ 317 if (node->nconns > 1) 318 select_input_connection(codec, node, i); 319 unmute_input(codec, node, i); 320 unmute_output(codec, node); 321 if (spec->dac_node[dac_idx] && 322 spec->pcm_vol_nodes < MAX_PCM_VOLS && 323 !(spec->dac_node[dac_idx]->wid_caps & 324 AC_WCAP_OUT_AMP)) { 325 if ((node->wid_caps & AC_WCAP_IN_AMP) || 326 (node->wid_caps & AC_WCAP_OUT_AMP)) { 327 int n = spec->pcm_vol_nodes; 328 spec->pcm_vol[n].node = node; 329 spec->pcm_vol[n].index = i; 330 spec->pcm_vol_nodes++; 331 } 332 } 333 return 1; 334 } 335 } 336 return 0; 337} 338 339/* 340 * Look for the output PIN widget with the given jack type 341 * and parse the output path to that PIN. 342 * 343 * Returns the PIN node when the path to DAC is established. 344 */ 345static struct hda_gnode *parse_output_jack(struct hda_codec *codec, 346 struct hda_gspec *spec, 347 int jack_type) 348{ 349 struct hda_gnode *node; 350 int err; 351 352 list_for_each_entry(node, &spec->nid_list, 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_cache(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 */ 398static 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 */ 442static 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 449static 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 458static 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 */ 469static 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 (pinctl && 489 (node->pin_caps & 490 (AC_PINCAP_VREF_80 << AC_PINCAP_VREF_SHIFT))) 491 *pinctl |= AC_PINCTL_VREF_80; 492 if ((location & 0x0f) == AC_JACK_LOC_FRONT) 493 return "Front Mic"; 494 return "Mic"; 495 case AC_JACK_SPDIF_IN: 496 return "SPDIF"; 497 case AC_JACK_DIG_OTHER_IN: 498 return "Digital"; 499 } 500 return NULL; 501} 502 503/* 504 * parse the nodes recursively until reach to the input PIN 505 * 506 * returns 0 if not found, 1 if found, or a negative error code. 507 */ 508static int parse_adc_sub_nodes(struct hda_codec *codec, struct hda_gspec *spec, 509 struct hda_gnode *node) 510{ 511 int i, err; 512 unsigned int pinctl; 513 char *label; 514 const char *type; 515 516 if (node->checked) 517 return 0; 518 519 node->checked = 1; 520 if (node->type != AC_WID_PIN) { 521 for (i = 0; i < node->nconns; i++) { 522 struct hda_gnode *child; 523 child = hda_get_node(spec, node->conn_list[i]); 524 if (! child) 525 continue; 526 err = parse_adc_sub_nodes(codec, spec, child); 527 if (err < 0) 528 return err; 529 if (err > 0) { 530 /* found one, 531 * select the path, unmute both input and output 532 */ 533 if (node->nconns > 1) 534 select_input_connection(codec, node, i); 535 unmute_input(codec, node, i); 536 unmute_output(codec, node); 537 return err; 538 } 539 } 540 return 0; 541 } 542 543 /* input capable? */ 544 if (! (node->pin_caps & AC_PINCAP_IN)) 545 return 0; 546 547 if (defcfg_port_conn(node) == AC_JACK_PORT_NONE) 548 return 0; /* unconnected */ 549 550 if (node->wid_caps & AC_WCAP_DIGITAL) 551 return 0; /* skip SPDIF */ 552 553 if (spec->input_mux.num_items >= HDA_MAX_NUM_INPUTS) { 554 snd_printk(KERN_ERR "hda_generic: Too many items for capture\n"); 555 return -EINVAL; 556 } 557 558 pinctl = AC_PINCTL_IN_EN; 559 /* create a proper capture source label */ 560 type = get_input_type(node, &pinctl); 561 if (! type) { 562 /* input as default? */ 563 if (! (node->pin_ctl & AC_PINCTL_IN_EN)) 564 return 0; 565 type = "Input"; 566 } 567 label = spec->cap_labels[spec->input_mux.num_items]; 568 strcpy(label, type); 569 spec->input_mux.items[spec->input_mux.num_items].label = label; 570 571 /* unmute the PIN external input */ 572 unmute_input(codec, node, 0); /* index = 0? */ 573 /* set PIN-In enable */ 574 snd_hda_codec_write_cache(codec, node->nid, 0, 575 AC_VERB_SET_PIN_WIDGET_CONTROL, pinctl); 576 577 return 1; /* found */ 578} 579 580/* add a capture source element */ 581static void add_cap_src(struct hda_gspec *spec, int idx) 582{ 583 struct hda_input_mux_item *csrc; 584 char *buf; 585 int num, ocap; 586 587 num = spec->input_mux.num_items; 588 csrc = &spec->input_mux.items[num]; 589 buf = spec->cap_labels[num]; 590 for (ocap = 0; ocap < num; ocap++) { 591 if (! strcmp(buf, spec->cap_labels[ocap])) { 592 /* same label already exists, 593 * put the index number to be unique 594 */ 595 sprintf(buf, "%s %d", spec->cap_labels[ocap], num); 596 break; 597 } 598 } 599 csrc->index = idx; 600 spec->input_mux.num_items++; 601} 602 603/* 604 * parse input 605 */ 606static int parse_input_path(struct hda_codec *codec, struct hda_gnode *adc_node) 607{ 608 struct hda_gspec *spec = codec->spec; 609 struct hda_gnode *node; 610 int i, err; 611 612 snd_printdd("AUD_IN = %x\n", adc_node->nid); 613 clear_check_flags(spec); 614 615 // awk added - fixed no recording due to muted widget 616 unmute_input(codec, adc_node, 0); 617 618 /* 619 * check each connection of the ADC 620 * if it reaches to a proper input PIN, add the path as the 621 * input path. 622 */ 623 /* first, check the direct connections to PIN widgets */ 624 for (i = 0; i < adc_node->nconns; i++) { 625 node = hda_get_node(spec, adc_node->conn_list[i]); 626 if (node && node->type == AC_WID_PIN) { 627 err = parse_adc_sub_nodes(codec, spec, node); 628 if (err < 0) 629 return err; 630 else if (err > 0) 631 add_cap_src(spec, i); 632 } 633 } 634 /* ... then check the rests, more complicated connections */ 635 for (i = 0; i < adc_node->nconns; i++) { 636 node = hda_get_node(spec, adc_node->conn_list[i]); 637 if (node && node->type != AC_WID_PIN) { 638 err = parse_adc_sub_nodes(codec, spec, node); 639 if (err < 0) 640 return err; 641 else if (err > 0) 642 add_cap_src(spec, i); 643 } 644 } 645 646 if (! spec->input_mux.num_items) 647 return 0; /* no input path found... */ 648 649 snd_printdd("[Capture Source] NID=0x%x, #SRC=%d\n", adc_node->nid, spec->input_mux.num_items); 650 for (i = 0; i < spec->input_mux.num_items; i++) 651 snd_printdd(" [%s] IDX=0x%x\n", spec->input_mux.items[i].label, 652 spec->input_mux.items[i].index); 653 654 spec->adc_node = adc_node; 655 return 1; 656} 657 658/* 659 * parse input 660 */ 661static int parse_input(struct hda_codec *codec) 662{ 663 struct hda_gspec *spec = codec->spec; 664 struct hda_gnode *node; 665 int err; 666 667 /* 668 * At first we look for an audio input widget. 669 * If it reaches to certain input PINs, we take it as the 670 * input path. 671 */ 672 list_for_each_entry(node, &spec->nid_list, 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#ifdef CONFIG_SND_HDA_POWER_SAVE 688static void add_input_loopback(struct hda_codec *codec, hda_nid_t nid, 689 int dir, int idx) 690{ 691 struct hda_gspec *spec = codec->spec; 692 struct hda_amp_list *p; 693 694 if (spec->num_loopbacks >= MAX_LOOPBACK_AMPS) { 695 snd_printk(KERN_ERR "hda_generic: Too many loopback ctls\n"); 696 return; 697 } 698 p = &spec->loopback_list[spec->num_loopbacks++]; 699 p->nid = nid; 700 p->dir = dir; 701 p->idx = idx; 702 spec->loopback.amplist = spec->loopback_list; 703} 704#else 705#define add_input_loopback(codec,nid,dir,idx) 706#endif 707 708/* 709 * create mixer controls if possible 710 */ 711static int create_mixer(struct hda_codec *codec, struct hda_gnode *node, 712 unsigned int index, const char *type, 713 const char *dir_sfx, int is_loopback) 714{ 715 char name[32]; 716 int err; 717 int created = 0; 718 struct snd_kcontrol_new knew; 719 720 if (type) 721 sprintf(name, "%s %s Switch", type, dir_sfx); 722 else 723 sprintf(name, "%s Switch", dir_sfx); 724 if ((node->wid_caps & AC_WCAP_IN_AMP) && 725 (node->amp_in_caps & AC_AMPCAP_MUTE)) { 726 knew = (struct snd_kcontrol_new)HDA_CODEC_MUTE(name, node->nid, index, HDA_INPUT); 727 if (is_loopback) 728 add_input_loopback(codec, node->nid, HDA_INPUT, index); 729 snd_printdd("[%s] NID=0x%x, DIR=IN, IDX=0x%x\n", name, node->nid, index); 730 err = snd_hda_ctl_add(codec, snd_ctl_new1(&knew, codec)); 731 if (err < 0) 732 return err; 733 created = 1; 734 } else if ((node->wid_caps & AC_WCAP_OUT_AMP) && 735 (node->amp_out_caps & AC_AMPCAP_MUTE)) { 736 knew = (struct snd_kcontrol_new)HDA_CODEC_MUTE(name, node->nid, 0, HDA_OUTPUT); 737 if (is_loopback) 738 add_input_loopback(codec, node->nid, HDA_OUTPUT, 0); 739 snd_printdd("[%s] NID=0x%x, DIR=OUT\n", name, node->nid); 740 err = snd_hda_ctl_add(codec, snd_ctl_new1(&knew, codec)); 741 if (err < 0) 742 return err; 743 created = 1; 744 } 745 746 if (type) 747 sprintf(name, "%s %s Volume", type, dir_sfx); 748 else 749 sprintf(name, "%s Volume", dir_sfx); 750 if ((node->wid_caps & AC_WCAP_IN_AMP) && 751 (node->amp_in_caps & AC_AMPCAP_NUM_STEPS)) { 752 knew = (struct snd_kcontrol_new)HDA_CODEC_VOLUME(name, node->nid, index, HDA_INPUT); 753 snd_printdd("[%s] NID=0x%x, DIR=IN, IDX=0x%x\n", name, node->nid, index); 754 err = snd_hda_ctl_add(codec, snd_ctl_new1(&knew, codec)); 755 if (err < 0) 756 return err; 757 created = 1; 758 } else if ((node->wid_caps & AC_WCAP_OUT_AMP) && 759 (node->amp_out_caps & AC_AMPCAP_NUM_STEPS)) { 760 knew = (struct snd_kcontrol_new)HDA_CODEC_VOLUME(name, node->nid, 0, HDA_OUTPUT); 761 snd_printdd("[%s] NID=0x%x, DIR=OUT\n", name, node->nid); 762 err = snd_hda_ctl_add(codec, snd_ctl_new1(&knew, codec)); 763 if (err < 0) 764 return err; 765 created = 1; 766 } 767 768 return created; 769} 770 771/* 772 * check whether the controls with the given name and direction suffix already exist 773 */ 774static int check_existing_control(struct hda_codec *codec, const char *type, const char *dir) 775{ 776 struct snd_ctl_elem_id id; 777 memset(&id, 0, sizeof(id)); 778 sprintf(id.name, "%s %s Volume", type, dir); 779 id.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 780 if (snd_ctl_find_id(codec->bus->card, &id)) 781 return 1; 782 sprintf(id.name, "%s %s Switch", type, dir); 783 id.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 784 if (snd_ctl_find_id(codec->bus->card, &id)) 785 return 1; 786 return 0; 787} 788 789/* 790 * build output mixer controls 791 */ 792static int create_output_mixers(struct hda_codec *codec, const char **names) 793{ 794 struct hda_gspec *spec = codec->spec; 795 int i, err; 796 797 for (i = 0; i < spec->pcm_vol_nodes; i++) { 798 err = create_mixer(codec, spec->pcm_vol[i].node, 799 spec->pcm_vol[i].index, 800 names[i], "Playback", 0); 801 if (err < 0) 802 return err; 803 } 804 return 0; 805} 806 807static int build_output_controls(struct hda_codec *codec) 808{ 809 struct hda_gspec *spec = codec->spec; 810 static const char *types_speaker[] = { "Speaker", "Headphone" }; 811 static const char *types_line[] = { "Front", "Headphone" }; 812 813 switch (spec->pcm_vol_nodes) { 814 case 1: 815 return create_mixer(codec, spec->pcm_vol[0].node, 816 spec->pcm_vol[0].index, 817 "Master", "Playback", 0); 818 case 2: 819 if (defcfg_type(spec->out_pin_node[0]) == AC_JACK_SPEAKER) 820 return create_output_mixers(codec, types_speaker); 821 else 822 return create_output_mixers(codec, types_line); 823 } 824 return 0; 825} 826 827/* create capture volume/switch */ 828static int build_input_controls(struct hda_codec *codec) 829{ 830 struct hda_gspec *spec = codec->spec; 831 struct hda_gnode *adc_node = spec->adc_node; 832 int i, err; 833 static struct snd_kcontrol_new cap_sel = { 834 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 835 .name = "Capture Source", 836 .info = capture_source_info, 837 .get = capture_source_get, 838 .put = capture_source_put, 839 }; 840 841 if (! adc_node || ! spec->input_mux.num_items) 842 return 0; /* not found */ 843 844 spec->cur_cap_src = 0; 845 select_input_connection(codec, adc_node, 846 spec->input_mux.items[0].index); 847 848 /* create capture volume and switch controls if the ADC has an amp */ 849 /* do we have only a single item? */ 850 if (spec->input_mux.num_items == 1) { 851 err = create_mixer(codec, adc_node, 852 spec->input_mux.items[0].index, 853 NULL, "Capture", 0); 854 if (err < 0) 855 return err; 856 return 0; 857 } 858 859 /* create input MUX if multiple sources are available */ 860 err = snd_hda_ctl_add(codec, snd_ctl_new1(&cap_sel, codec)); 861 if (err < 0) 862 return err; 863 864 /* no volume control? */ 865 if (! (adc_node->wid_caps & AC_WCAP_IN_AMP) || 866 ! (adc_node->amp_in_caps & AC_AMPCAP_NUM_STEPS)) 867 return 0; 868 869 for (i = 0; i < spec->input_mux.num_items; i++) { 870 struct snd_kcontrol_new knew; 871 char name[32]; 872 sprintf(name, "%s Capture Volume", 873 spec->input_mux.items[i].label); 874 knew = (struct snd_kcontrol_new) 875 HDA_CODEC_VOLUME(name, adc_node->nid, 876 spec->input_mux.items[i].index, 877 HDA_INPUT); 878 err = snd_hda_ctl_add(codec, snd_ctl_new1(&knew, codec)); 879 if (err < 0) 880 return err; 881 } 882 883 return 0; 884} 885 886 887/* 888 * parse the nodes recursively until reach to the output PIN. 889 * 890 * returns 0 - if not found, 891 * 1 - if found, but no mixer is created 892 * 2 - if found and mixer was already created, (just skip) 893 * a negative error code 894 */ 895static int parse_loopback_path(struct hda_codec *codec, struct hda_gspec *spec, 896 struct hda_gnode *node, struct hda_gnode *dest_node, 897 const char *type) 898{ 899 int i, err; 900 901 if (node->checked) 902 return 0; 903 904 node->checked = 1; 905 if (node == dest_node) { 906 /* loopback connection found */ 907 return 1; 908 } 909 910 for (i = 0; i < node->nconns; i++) { 911 struct hda_gnode *child = hda_get_node(spec, node->conn_list[i]); 912 if (! child) 913 continue; 914 err = parse_loopback_path(codec, spec, child, dest_node, type); 915 if (err < 0) 916 return err; 917 else if (err >= 1) { 918 if (err == 1) { 919 err = create_mixer(codec, node, i, type, 920 "Playback", 1); 921 if (err < 0) 922 return err; 923 if (err > 0) 924 return 2; /* ok, created */ 925 /* not created, maybe in the lower path */ 926 err = 1; 927 } 928 /* connect and unmute */ 929 if (node->nconns > 1) 930 select_input_connection(codec, node, i); 931 unmute_input(codec, node, i); 932 unmute_output(codec, node); 933 return err; 934 } 935 } 936 return 0; 937} 938 939/* 940 * parse the tree and build the loopback controls 941 */ 942static int build_loopback_controls(struct hda_codec *codec) 943{ 944 struct hda_gspec *spec = codec->spec; 945 struct hda_gnode *node; 946 int err; 947 const char *type; 948 949 if (! spec->out_pin_node[0]) 950 return 0; 951 952 list_for_each_entry(node, &spec->nid_list, list) { 953 if (node->type != AC_WID_PIN) 954 continue; 955 /* input capable? */ 956 if (! (node->pin_caps & AC_PINCAP_IN)) 957 return 0; 958 type = get_input_type(node, NULL); 959 if (type) { 960 if (check_existing_control(codec, type, "Playback")) 961 continue; 962 clear_check_flags(spec); 963 err = parse_loopback_path(codec, spec, 964 spec->out_pin_node[0], 965 node, type); 966 if (err < 0) 967 return err; 968 if (! err) 969 continue; 970 } 971 } 972 return 0; 973} 974 975/* 976 * build mixer controls 977 */ 978static int build_generic_controls(struct hda_codec *codec) 979{ 980 int err; 981 982 if ((err = build_input_controls(codec)) < 0 || 983 (err = build_output_controls(codec)) < 0 || 984 (err = build_loopback_controls(codec)) < 0) 985 return err; 986 987 return 0; 988} 989 990/* 991 * PCM 992 */ 993static struct hda_pcm_stream generic_pcm_playback = { 994 .substreams = 1, 995 .channels_min = 2, 996 .channels_max = 2, 997}; 998 999static int generic_pcm2_prepare(struct hda_pcm_stream *hinfo, 1000 struct hda_codec *codec, 1001 unsigned int stream_tag, 1002 unsigned int format, 1003 struct snd_pcm_substream *substream) 1004{ 1005 struct hda_gspec *spec = codec->spec; 1006 1007 snd_hda_codec_setup_stream(codec, hinfo->nid, stream_tag, 0, format); 1008 snd_hda_codec_setup_stream(codec, spec->dac_node[1]->nid, 1009 stream_tag, 0, format); 1010 return 0; 1011} 1012 1013static int generic_pcm2_cleanup(struct hda_pcm_stream *hinfo, 1014 struct hda_codec *codec, 1015 struct snd_pcm_substream *substream) 1016{ 1017 struct hda_gspec *spec = codec->spec; 1018 1019 snd_hda_codec_cleanup_stream(codec, hinfo->nid); 1020 snd_hda_codec_cleanup_stream(codec, spec->dac_node[1]->nid); 1021 return 0; 1022} 1023 1024static int build_generic_pcms(struct hda_codec *codec) 1025{ 1026 struct hda_gspec *spec = codec->spec; 1027 struct hda_pcm *info = &spec->pcm_rec; 1028 1029 if (! spec->dac_node[0] && ! spec->adc_node) { 1030 snd_printd("hda_generic: no PCM found\n"); 1031 return 0; 1032 } 1033 1034 codec->num_pcms = 1; 1035 codec->pcm_info = info; 1036 1037 info->name = "HDA Generic"; 1038 if (spec->dac_node[0]) { 1039 info->stream[0] = generic_pcm_playback; 1040 info->stream[0].nid = spec->dac_node[0]->nid; 1041 if (spec->dac_node[1]) { 1042 info->stream[0].ops.prepare = generic_pcm2_prepare; 1043 info->stream[0].ops.cleanup = generic_pcm2_cleanup; 1044 } 1045 } 1046 if (spec->adc_node) { 1047 info->stream[1] = generic_pcm_playback; 1048 info->stream[1].nid = spec->adc_node->nid; 1049 } 1050 1051 return 0; 1052} 1053 1054#ifdef CONFIG_SND_HDA_POWER_SAVE 1055static int generic_check_power_status(struct hda_codec *codec, hda_nid_t nid) 1056{ 1057 struct hda_gspec *spec = codec->spec; 1058 return snd_hda_check_amp_list_power(codec, &spec->loopback, nid); 1059} 1060#endif 1061 1062 1063/* 1064 */ 1065static struct hda_codec_ops generic_patch_ops = { 1066 .build_controls = build_generic_controls, 1067 .build_pcms = build_generic_pcms, 1068 .free = snd_hda_generic_free, 1069#ifdef CONFIG_SND_HDA_POWER_SAVE 1070 .check_power_status = generic_check_power_status, 1071#endif 1072}; 1073 1074/* 1075 * the generic parser 1076 */ 1077int snd_hda_parse_generic_codec(struct hda_codec *codec) 1078{ 1079 struct hda_gspec *spec; 1080 int err; 1081 1082 if(!codec->afg) 1083 return 0; 1084 1085 spec = kzalloc(sizeof(*spec), GFP_KERNEL); 1086 if (spec == NULL) { 1087 printk(KERN_ERR "hda_generic: can't allocate spec\n"); 1088 return -ENOMEM; 1089 } 1090 codec->spec = spec; 1091 INIT_LIST_HEAD(&spec->nid_list); 1092 1093 if ((err = build_afg_tree(codec)) < 0) 1094 goto error; 1095 1096 if ((err = parse_input(codec)) < 0 || 1097 (err = parse_output(codec)) < 0) 1098 goto error; 1099 1100 codec->patch_ops = generic_patch_ops; 1101 1102 return 0; 1103 1104 error: 1105 snd_hda_generic_free(codec); 1106 return err; 1107} 1108EXPORT_SYMBOL(snd_hda_parse_generic_codec); 1109