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 */ 206static 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 */ 220static 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 */ 235static 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 */ 250static 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 */ 261static 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 */ 275static 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 */ 344static 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 */ 397static 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 */ 441static 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 448static 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 457static 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 */ 468static 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 return "CD"; 478 case AC_JACK_AUX: 479 if ((location & 0x0f) == AC_JACK_LOC_FRONT) 480 return "Front Aux"; 481 return "Aux"; 482 case AC_JACK_MIC_IN: 483 if (pinctl && 484 (node->pin_caps & 485 (AC_PINCAP_VREF_80 << AC_PINCAP_VREF_SHIFT))) 486 *pinctl |= AC_PINCTL_VREF_80; 487 if ((location & 0x0f) == AC_JACK_LOC_FRONT) 488 return "Front Mic"; 489 return "Mic"; 490 case AC_JACK_SPDIF_IN: 491 return "SPDIF"; 492 case AC_JACK_DIG_OTHER_IN: 493 return "Digital"; 494 } 495 return NULL; 496} 497 498/* 499 * parse the nodes recursively until reach to the input PIN 500 * 501 * returns 0 if not found, 1 if found, or a negative error code. 502 */ 503static int parse_adc_sub_nodes(struct hda_codec *codec, struct hda_gspec *spec, 504 struct hda_gnode *node) 505{ 506 int i, err; 507 unsigned int pinctl; 508 char *label; 509 const char *type; 510 511 if (node->checked) 512 return 0; 513 514 node->checked = 1; 515 if (node->type != AC_WID_PIN) { 516 for (i = 0; i < node->nconns; i++) { 517 struct hda_gnode *child; 518 child = hda_get_node(spec, node->conn_list[i]); 519 if (! child) 520 continue; 521 err = parse_adc_sub_nodes(codec, spec, child); 522 if (err < 0) 523 return err; 524 if (err > 0) { 525 /* found one, 526 * select the path, unmute both input and output 527 */ 528 if (node->nconns > 1) 529 select_input_connection(codec, node, i); 530 unmute_input(codec, node, i); 531 unmute_output(codec, node); 532 return err; 533 } 534 } 535 return 0; 536 } 537 538 /* input capable? */ 539 if (! (node->pin_caps & AC_PINCAP_IN)) 540 return 0; 541 542 if (defcfg_port_conn(node) == AC_JACK_PORT_NONE) 543 return 0; /* unconnected */ 544 545 if (node->wid_caps & AC_WCAP_DIGITAL) 546 return 0; /* skip SPDIF */ 547 548 if (spec->input_mux.num_items >= HDA_MAX_NUM_INPUTS) { 549 snd_printk(KERN_ERR "hda_generic: Too many items for capture\n"); 550 return -EINVAL; 551 } 552 553 pinctl = AC_PINCTL_IN_EN; 554 /* create a proper capture source label */ 555 type = get_input_type(node, &pinctl); 556 if (! type) { 557 /* input as default? */ 558 if (! (node->pin_ctl & AC_PINCTL_IN_EN)) 559 return 0; 560 type = "Input"; 561 } 562 label = spec->cap_labels[spec->input_mux.num_items]; 563 strcpy(label, type); 564 spec->input_mux.items[spec->input_mux.num_items].label = label; 565 566 /* unmute the PIN external input */ 567 unmute_input(codec, node, 0); /* index = 0? */ 568 /* set PIN-In enable */ 569 snd_hda_codec_write_cache(codec, node->nid, 0, 570 AC_VERB_SET_PIN_WIDGET_CONTROL, pinctl); 571 572 return 1; /* found */ 573} 574 575/* add a capture source element */ 576static void add_cap_src(struct hda_gspec *spec, int idx) 577{ 578 struct hda_input_mux_item *csrc; 579 char *buf; 580 int num, ocap; 581 582 num = spec->input_mux.num_items; 583 csrc = &spec->input_mux.items[num]; 584 buf = spec->cap_labels[num]; 585 for (ocap = 0; ocap < num; ocap++) { 586 if (! strcmp(buf, spec->cap_labels[ocap])) { 587 /* same label already exists, 588 * put the index number to be unique 589 */ 590 sprintf(buf, "%s %d", spec->cap_labels[ocap], num); 591 break; 592 } 593 } 594 csrc->index = idx; 595 spec->input_mux.num_items++; 596} 597 598/* 599 * parse input 600 */ 601static int parse_input_path(struct hda_codec *codec, struct hda_gnode *adc_node) 602{ 603 struct hda_gspec *spec = codec->spec; 604 struct hda_gnode *node; 605 int i, err; 606 607 snd_printdd("AUD_IN = %x\n", adc_node->nid); 608 clear_check_flags(spec); 609 610 // awk added - fixed no recording due to muted widget 611 unmute_input(codec, adc_node, 0); 612 613 /* 614 * check each connection of the ADC 615 * if it reaches to a proper input PIN, add the path as the 616 * input path. 617 */ 618 /* first, check the direct connections to PIN widgets */ 619 for (i = 0; i < adc_node->nconns; i++) { 620 node = hda_get_node(spec, adc_node->conn_list[i]); 621 if (node && node->type == AC_WID_PIN) { 622 err = parse_adc_sub_nodes(codec, spec, node); 623 if (err < 0) 624 return err; 625 else if (err > 0) 626 add_cap_src(spec, i); 627 } 628 } 629 /* ... then check the rests, more complicated connections */ 630 for (i = 0; i < adc_node->nconns; i++) { 631 node = hda_get_node(spec, adc_node->conn_list[i]); 632 if (node && node->type != AC_WID_PIN) { 633 err = parse_adc_sub_nodes(codec, spec, node); 634 if (err < 0) 635 return err; 636 else if (err > 0) 637 add_cap_src(spec, i); 638 } 639 } 640 641 if (! spec->input_mux.num_items) 642 return 0; /* no input path found... */ 643 644 snd_printdd("[Capture Source] NID=0x%x, #SRC=%d\n", adc_node->nid, spec->input_mux.num_items); 645 for (i = 0; i < spec->input_mux.num_items; i++) 646 snd_printdd(" [%s] IDX=0x%x\n", spec->input_mux.items[i].label, 647 spec->input_mux.items[i].index); 648 649 spec->adc_node = adc_node; 650 return 1; 651} 652 653/* 654 * parse input 655 */ 656static int parse_input(struct hda_codec *codec) 657{ 658 struct hda_gspec *spec = codec->spec; 659 struct hda_gnode *node; 660 int err; 661 662 /* 663 * At first we look for an audio input widget. 664 * If it reaches to certain input PINs, we take it as the 665 * input path. 666 */ 667 list_for_each_entry(node, &spec->nid_list, list) { 668 if (node->wid_caps & AC_WCAP_DIGITAL) 669 continue; /* skip SPDIF */ 670 if (node->type == AC_WID_AUD_IN) { 671 err = parse_input_path(codec, node); 672 if (err < 0) 673 return err; 674 else if (err > 0) 675 return 0; 676 } 677 } 678 snd_printd("hda_generic: no proper input path found\n"); 679 return 0; 680} 681 682#ifdef CONFIG_SND_HDA_POWER_SAVE 683static void add_input_loopback(struct hda_codec *codec, hda_nid_t nid, 684 int dir, int idx) 685{ 686 struct hda_gspec *spec = codec->spec; 687 struct hda_amp_list *p; 688 689 if (spec->num_loopbacks >= MAX_LOOPBACK_AMPS) { 690 snd_printk(KERN_ERR "hda_generic: Too many loopback ctls\n"); 691 return; 692 } 693 p = &spec->loopback_list[spec->num_loopbacks++]; 694 p->nid = nid; 695 p->dir = dir; 696 p->idx = idx; 697 spec->loopback.amplist = spec->loopback_list; 698} 699#else 700#define add_input_loopback(codec,nid,dir,idx) 701#endif 702 703/* 704 * create mixer controls if possible 705 */ 706static int create_mixer(struct hda_codec *codec, struct hda_gnode *node, 707 unsigned int index, const char *type, 708 const char *dir_sfx, int is_loopback) 709{ 710 char name[32]; 711 int err; 712 int created = 0; 713 struct snd_kcontrol_new knew; 714 715 if (type) 716 sprintf(name, "%s %s Switch", type, dir_sfx); 717 else 718 sprintf(name, "%s Switch", dir_sfx); 719 if ((node->wid_caps & AC_WCAP_IN_AMP) && 720 (node->amp_in_caps & AC_AMPCAP_MUTE)) { 721 knew = (struct snd_kcontrol_new)HDA_CODEC_MUTE(name, node->nid, index, HDA_INPUT); 722 if (is_loopback) 723 add_input_loopback(codec, node->nid, HDA_INPUT, index); 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_MUTE)) { 732 knew = (struct snd_kcontrol_new)HDA_CODEC_MUTE(name, node->nid, 0, HDA_OUTPUT); 733 if (is_loopback) 734 add_input_loopback(codec, node->nid, HDA_OUTPUT, 0); 735 snd_printdd("[%s] NID=0x%x, DIR=OUT\n", name, node->nid); 736 err = snd_hda_ctl_add(codec, node->nid, 737 snd_ctl_new1(&knew, codec)); 738 if (err < 0) 739 return err; 740 created = 1; 741 } 742 743 if (type) 744 sprintf(name, "%s %s Volume", type, dir_sfx); 745 else 746 sprintf(name, "%s Volume", dir_sfx); 747 if ((node->wid_caps & AC_WCAP_IN_AMP) && 748 (node->amp_in_caps & AC_AMPCAP_NUM_STEPS)) { 749 knew = (struct snd_kcontrol_new)HDA_CODEC_VOLUME(name, node->nid, index, HDA_INPUT); 750 snd_printdd("[%s] NID=0x%x, DIR=IN, IDX=0x%x\n", name, node->nid, index); 751 err = snd_hda_ctl_add(codec, node->nid, 752 snd_ctl_new1(&knew, codec)); 753 if (err < 0) 754 return err; 755 created = 1; 756 } else if ((node->wid_caps & AC_WCAP_OUT_AMP) && 757 (node->amp_out_caps & AC_AMPCAP_NUM_STEPS)) { 758 knew = (struct snd_kcontrol_new)HDA_CODEC_VOLUME(name, node->nid, 0, HDA_OUTPUT); 759 snd_printdd("[%s] NID=0x%x, DIR=OUT\n", name, node->nid); 760 err = snd_hda_ctl_add(codec, node->nid, 761 snd_ctl_new1(&knew, codec)); 762 if (err < 0) 763 return err; 764 created = 1; 765 } 766 767 return created; 768} 769 770/* 771 * check whether the controls with the given name and direction suffix already exist 772 */ 773static int check_existing_control(struct hda_codec *codec, const char *type, const char *dir) 774{ 775 struct snd_ctl_elem_id id; 776 memset(&id, 0, sizeof(id)); 777 sprintf(id.name, "%s %s Volume", type, dir); 778 id.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 779 if (snd_ctl_find_id(codec->bus->card, &id)) 780 return 1; 781 sprintf(id.name, "%s %s Switch", type, dir); 782 id.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 783 if (snd_ctl_find_id(codec->bus->card, &id)) 784 return 1; 785 return 0; 786} 787 788/* 789 * build output mixer controls 790 */ 791static int create_output_mixers(struct hda_codec *codec, const char **names) 792{ 793 struct hda_gspec *spec = codec->spec; 794 int i, err; 795 796 for (i = 0; i < spec->pcm_vol_nodes; i++) { 797 err = create_mixer(codec, spec->pcm_vol[i].node, 798 spec->pcm_vol[i].index, 799 names[i], "Playback", 0); 800 if (err < 0) 801 return err; 802 } 803 return 0; 804} 805 806static int build_output_controls(struct hda_codec *codec) 807{ 808 struct hda_gspec *spec = codec->spec; 809 static const char *types_speaker[] = { "Speaker", "Headphone" }; 810 static const char *types_line[] = { "Front", "Headphone" }; 811 812 switch (spec->pcm_vol_nodes) { 813 case 1: 814 return create_mixer(codec, spec->pcm_vol[0].node, 815 spec->pcm_vol[0].index, 816 "Master", "Playback", 0); 817 case 2: 818 if (defcfg_type(spec->out_pin_node[0]) == AC_JACK_SPEAKER) 819 return create_output_mixers(codec, types_speaker); 820 else 821 return create_output_mixers(codec, types_line); 822 } 823 return 0; 824} 825 826/* create capture volume/switch */ 827static int build_input_controls(struct hda_codec *codec) 828{ 829 struct hda_gspec *spec = codec->spec; 830 struct hda_gnode *adc_node = spec->adc_node; 831 int i, err; 832 static struct snd_kcontrol_new cap_sel = { 833 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 834 .name = "Capture Source", 835 .info = capture_source_info, 836 .get = capture_source_get, 837 .put = capture_source_put, 838 }; 839 840 if (! adc_node || ! spec->input_mux.num_items) 841 return 0; /* not found */ 842 843 spec->cur_cap_src = 0; 844 select_input_connection(codec, adc_node, 845 spec->input_mux.items[0].index); 846 847 /* create capture volume and switch controls if the ADC has an amp */ 848 /* do we have only a single item? */ 849 if (spec->input_mux.num_items == 1) { 850 err = create_mixer(codec, adc_node, 851 spec->input_mux.items[0].index, 852 NULL, "Capture", 0); 853 if (err < 0) 854 return err; 855 return 0; 856 } 857 858 /* create input MUX if multiple sources are available */ 859 err = snd_hda_ctl_add(codec, spec->adc_node->nid, 860 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, adc_node->nid, 879 snd_ctl_new1(&knew, codec)); 880 if (err < 0) 881 return err; 882 } 883 884 return 0; 885} 886 887 888/* 889 * parse the nodes recursively until reach to the output PIN. 890 * 891 * returns 0 - if not found, 892 * 1 - if found, but no mixer is created 893 * 2 - if found and mixer was already created, (just skip) 894 * a negative error code 895 */ 896static int parse_loopback_path(struct hda_codec *codec, struct hda_gspec *spec, 897 struct hda_gnode *node, struct hda_gnode *dest_node, 898 const char *type) 899{ 900 int i, err; 901 902 if (node->checked) 903 return 0; 904 905 node->checked = 1; 906 if (node == dest_node) { 907 /* loopback connection found */ 908 return 1; 909 } 910 911 for (i = 0; i < node->nconns; i++) { 912 struct hda_gnode *child = hda_get_node(spec, node->conn_list[i]); 913 if (! child) 914 continue; 915 err = parse_loopback_path(codec, spec, child, dest_node, type); 916 if (err < 0) 917 return err; 918 else if (err >= 1) { 919 if (err == 1) { 920 err = create_mixer(codec, node, i, type, 921 "Playback", 1); 922 if (err < 0) 923 return err; 924 if (err > 0) 925 return 2; /* ok, created */ 926 /* not created, maybe in the lower path */ 927 err = 1; 928 } 929 /* connect and unmute */ 930 if (node->nconns > 1) 931 select_input_connection(codec, node, i); 932 unmute_input(codec, node, i); 933 unmute_output(codec, node); 934 return err; 935 } 936 } 937 return 0; 938} 939 940/* 941 * parse the tree and build the loopback controls 942 */ 943static int build_loopback_controls(struct hda_codec *codec) 944{ 945 struct hda_gspec *spec = codec->spec; 946 struct hda_gnode *node; 947 int err; 948 const char *type; 949 950 if (! spec->out_pin_node[0]) 951 return 0; 952 953 list_for_each_entry(node, &spec->nid_list, list) { 954 if (node->type != AC_WID_PIN) 955 continue; 956 /* input capable? */ 957 if (! (node->pin_caps & AC_PINCAP_IN)) 958 return 0; 959 type = get_input_type(node, NULL); 960 if (type) { 961 if (check_existing_control(codec, type, "Playback")) 962 continue; 963 clear_check_flags(spec); 964 err = parse_loopback_path(codec, spec, 965 spec->out_pin_node[0], 966 node, type); 967 if (err < 0) 968 return err; 969 if (! err) 970 continue; 971 } 972 } 973 return 0; 974} 975 976/* 977 * build mixer controls 978 */ 979static int build_generic_controls(struct hda_codec *codec) 980{ 981 int err; 982 983 if ((err = build_input_controls(codec)) < 0 || 984 (err = build_output_controls(codec)) < 0 || 985 (err = build_loopback_controls(codec)) < 0) 986 return err; 987 988 return 0; 989} 990 991/* 992 * PCM 993 */ 994static struct hda_pcm_stream generic_pcm_playback = { 995 .substreams = 1, 996 .channels_min = 2, 997 .channels_max = 2, 998}; 999 1000static int generic_pcm2_prepare(struct hda_pcm_stream *hinfo, 1001 struct hda_codec *codec, 1002 unsigned int stream_tag, 1003 unsigned int format, 1004 struct snd_pcm_substream *substream) 1005{ 1006 struct hda_gspec *spec = codec->spec; 1007 1008 snd_hda_codec_setup_stream(codec, hinfo->nid, stream_tag, 0, format); 1009 snd_hda_codec_setup_stream(codec, spec->dac_node[1]->nid, 1010 stream_tag, 0, format); 1011 return 0; 1012} 1013 1014static int generic_pcm2_cleanup(struct hda_pcm_stream *hinfo, 1015 struct hda_codec *codec, 1016 struct snd_pcm_substream *substream) 1017{ 1018 struct hda_gspec *spec = codec->spec; 1019 1020 snd_hda_codec_cleanup_stream(codec, hinfo->nid); 1021 snd_hda_codec_cleanup_stream(codec, spec->dac_node[1]->nid); 1022 return 0; 1023} 1024 1025static int build_generic_pcms(struct hda_codec *codec) 1026{ 1027 struct hda_gspec *spec = codec->spec; 1028 struct hda_pcm *info = &spec->pcm_rec; 1029 1030 if (! spec->dac_node[0] && ! spec->adc_node) { 1031 snd_printd("hda_generic: no PCM found\n"); 1032 return 0; 1033 } 1034 1035 codec->num_pcms = 1; 1036 codec->pcm_info = info; 1037 1038 info->name = "HDA Generic"; 1039 if (spec->dac_node[0]) { 1040 info->stream[0] = generic_pcm_playback; 1041 info->stream[0].nid = spec->dac_node[0]->nid; 1042 if (spec->dac_node[1]) { 1043 info->stream[0].ops.prepare = generic_pcm2_prepare; 1044 info->stream[0].ops.cleanup = generic_pcm2_cleanup; 1045 } 1046 } 1047 if (spec->adc_node) { 1048 info->stream[1] = generic_pcm_playback; 1049 info->stream[1].nid = spec->adc_node->nid; 1050 } 1051 1052 return 0; 1053} 1054 1055#ifdef CONFIG_SND_HDA_POWER_SAVE 1056static int generic_check_power_status(struct hda_codec *codec, hda_nid_t nid) 1057{ 1058 struct hda_gspec *spec = codec->spec; 1059 return snd_hda_check_amp_list_power(codec, &spec->loopback, nid); 1060} 1061#endif 1062 1063 1064/* 1065 */ 1066static struct hda_codec_ops generic_patch_ops = { 1067 .build_controls = build_generic_controls, 1068 .build_pcms = build_generic_pcms, 1069 .free = snd_hda_generic_free, 1070#ifdef CONFIG_SND_HDA_POWER_SAVE 1071 .check_power_status = generic_check_power_status, 1072#endif 1073}; 1074 1075/* 1076 * the generic parser 1077 */ 1078int snd_hda_parse_generic_codec(struct hda_codec *codec) 1079{ 1080 struct hda_gspec *spec; 1081 int err; 1082 1083 if(!codec->afg) 1084 return 0; 1085 1086 spec = kzalloc(sizeof(*spec), GFP_KERNEL); 1087 if (spec == NULL) { 1088 printk(KERN_ERR "hda_generic: can't allocate spec\n"); 1089 return -ENOMEM; 1090 } 1091 codec->spec = spec; 1092 INIT_LIST_HEAD(&spec->nid_list); 1093 1094 if ((err = build_afg_tree(codec)) < 0) 1095 goto error; 1096 1097 if ((err = parse_input(codec)) < 0 || 1098 (err = parse_output(codec)) < 0) 1099 goto error; 1100 1101 codec->patch_ops = generic_patch_ops; 1102 1103 return 0; 1104 1105 error: 1106 snd_hda_generic_free(codec); 1107 return err; 1108} 1109EXPORT_SYMBOL(snd_hda_parse_generic_codec); 1110