1 /* 2 * Universal Interface for Intel High Definition Audio Codec 3 * 4 * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de> 5 * 6 * 7 * This driver is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License as published by 9 * the Free Software Foundation; either version 2 of the License, or 10 * (at your option) any later version. 11 * 12 * This driver is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 20 */ 21 22 #include <linux/init.h> 23 #include <linux/delay.h> 24 #include <linux/slab.h> 25 #include <linux/mutex.h> 26 #include <linux/module.h> 27 #include <linux/pm.h> 28 #include <linux/pm_runtime.h> 29 #include <sound/core.h> 30 #include "hda_codec.h" 31 #include <sound/asoundef.h> 32 #include <sound/tlv.h> 33 #include <sound/initval.h> 34 #include <sound/jack.h> 35 #include "hda_local.h" 36 #include "hda_beep.h" 37 #include "hda_jack.h" 38 #include <sound/hda_hwdep.h> 39 40 #ifdef CONFIG_PM 41 #define codec_in_pm(codec) atomic_read(&(codec)->core.in_pm) 42 #define hda_codec_is_power_on(codec) \ 43 (!pm_runtime_suspended(hda_codec_dev(codec))) 44 #else 45 #define codec_in_pm(codec) 0 46 #define hda_codec_is_power_on(codec) 1 47 #endif 48 49 #define codec_has_epss(codec) \ 50 ((codec)->core.power_caps & AC_PWRST_EPSS) 51 #define codec_has_clkstop(codec) \ 52 ((codec)->core.power_caps & AC_PWRST_CLKSTOP) 53 54 /* 55 * Send and receive a verb - passed to exec_verb override for hdac_device 56 */ 57 static int codec_exec_verb(struct hdac_device *dev, unsigned int cmd, 58 unsigned int flags, unsigned int *res) 59 { 60 struct hda_codec *codec = container_of(dev, struct hda_codec, core); 61 struct hda_bus *bus = codec->bus; 62 int err; 63 64 if (cmd == ~0) 65 return -1; 66 67 again: 68 snd_hda_power_up_pm(codec); 69 mutex_lock(&bus->core.cmd_mutex); 70 if (flags & HDA_RW_NO_RESPONSE_FALLBACK) 71 bus->no_response_fallback = 1; 72 err = snd_hdac_bus_exec_verb_unlocked(&bus->core, codec->core.addr, 73 cmd, res); 74 bus->no_response_fallback = 0; 75 mutex_unlock(&bus->core.cmd_mutex); 76 snd_hda_power_down_pm(codec); 77 if (!codec_in_pm(codec) && res && err == -EAGAIN) { 78 if (bus->response_reset) { 79 codec_dbg(codec, 80 "resetting BUS due to fatal communication error\n"); 81 snd_hda_bus_reset(bus); 82 } 83 goto again; 84 } 85 /* clear reset-flag when the communication gets recovered */ 86 if (!err || codec_in_pm(codec)) 87 bus->response_reset = 0; 88 return err; 89 } 90 91 /** 92 * snd_hda_sequence_write - sequence writes 93 * @codec: the HDA codec 94 * @seq: VERB array to send 95 * 96 * Send the commands sequentially from the given array. 97 * The array must be terminated with NID=0. 98 */ 99 void snd_hda_sequence_write(struct hda_codec *codec, const struct hda_verb *seq) 100 { 101 for (; seq->nid; seq++) 102 snd_hda_codec_write(codec, seq->nid, 0, seq->verb, seq->param); 103 } 104 EXPORT_SYMBOL_GPL(snd_hda_sequence_write); 105 106 /* connection list element */ 107 struct hda_conn_list { 108 struct list_head list; 109 int len; 110 hda_nid_t nid; 111 hda_nid_t conns[0]; 112 }; 113 114 /* look up the cached results */ 115 static struct hda_conn_list * 116 lookup_conn_list(struct hda_codec *codec, hda_nid_t nid) 117 { 118 struct hda_conn_list *p; 119 list_for_each_entry(p, &codec->conn_list, list) { 120 if (p->nid == nid) 121 return p; 122 } 123 return NULL; 124 } 125 126 static int add_conn_list(struct hda_codec *codec, hda_nid_t nid, int len, 127 const hda_nid_t *list) 128 { 129 struct hda_conn_list *p; 130 131 p = kmalloc(sizeof(*p) + len * sizeof(hda_nid_t), GFP_KERNEL); 132 if (!p) 133 return -ENOMEM; 134 p->len = len; 135 p->nid = nid; 136 memcpy(p->conns, list, len * sizeof(hda_nid_t)); 137 list_add(&p->list, &codec->conn_list); 138 return 0; 139 } 140 141 static void remove_conn_list(struct hda_codec *codec) 142 { 143 while (!list_empty(&codec->conn_list)) { 144 struct hda_conn_list *p; 145 p = list_first_entry(&codec->conn_list, typeof(*p), list); 146 list_del(&p->list); 147 kfree(p); 148 } 149 } 150 151 /* read the connection and add to the cache */ 152 static int read_and_add_raw_conns(struct hda_codec *codec, hda_nid_t nid) 153 { 154 hda_nid_t list[32]; 155 hda_nid_t *result = list; 156 int len; 157 158 len = snd_hda_get_raw_connections(codec, nid, list, ARRAY_SIZE(list)); 159 if (len == -ENOSPC) { 160 len = snd_hda_get_num_raw_conns(codec, nid); 161 result = kmalloc_array(len, sizeof(hda_nid_t), GFP_KERNEL); 162 if (!result) 163 return -ENOMEM; 164 len = snd_hda_get_raw_connections(codec, nid, result, len); 165 } 166 if (len >= 0) 167 len = snd_hda_override_conn_list(codec, nid, len, result); 168 if (result != list) 169 kfree(result); 170 return len; 171 } 172 173 /** 174 * snd_hda_get_conn_list - get connection list 175 * @codec: the HDA codec 176 * @nid: NID to parse 177 * @listp: the pointer to store NID list 178 * 179 * Parses the connection list of the given widget and stores the pointer 180 * to the list of NIDs. 181 * 182 * Returns the number of connections, or a negative error code. 183 * 184 * Note that the returned pointer isn't protected against the list 185 * modification. If snd_hda_override_conn_list() might be called 186 * concurrently, protect with a mutex appropriately. 187 */ 188 int snd_hda_get_conn_list(struct hda_codec *codec, hda_nid_t nid, 189 const hda_nid_t **listp) 190 { 191 bool added = false; 192 193 for (;;) { 194 int err; 195 const struct hda_conn_list *p; 196 197 /* if the connection-list is already cached, read it */ 198 p = lookup_conn_list(codec, nid); 199 if (p) { 200 if (listp) 201 *listp = p->conns; 202 return p->len; 203 } 204 if (snd_BUG_ON(added)) 205 return -EINVAL; 206 207 err = read_and_add_raw_conns(codec, nid); 208 if (err < 0) 209 return err; 210 added = true; 211 } 212 } 213 EXPORT_SYMBOL_GPL(snd_hda_get_conn_list); 214 215 /** 216 * snd_hda_get_connections - copy connection list 217 * @codec: the HDA codec 218 * @nid: NID to parse 219 * @conn_list: connection list array; when NULL, checks only the size 220 * @max_conns: max. number of connections to store 221 * 222 * Parses the connection list of the given widget and stores the list 223 * of NIDs. 224 * 225 * Returns the number of connections, or a negative error code. 226 */ 227 int snd_hda_get_connections(struct hda_codec *codec, hda_nid_t nid, 228 hda_nid_t *conn_list, int max_conns) 229 { 230 const hda_nid_t *list; 231 int len = snd_hda_get_conn_list(codec, nid, &list); 232 233 if (len > 0 && conn_list) { 234 if (len > max_conns) { 235 codec_err(codec, "Too many connections %d for NID 0x%x\n", 236 len, nid); 237 return -EINVAL; 238 } 239 memcpy(conn_list, list, len * sizeof(hda_nid_t)); 240 } 241 242 return len; 243 } 244 EXPORT_SYMBOL_GPL(snd_hda_get_connections); 245 246 /** 247 * snd_hda_override_conn_list - add/modify the connection-list to cache 248 * @codec: the HDA codec 249 * @nid: NID to parse 250 * @len: number of connection list entries 251 * @list: the list of connection entries 252 * 253 * Add or modify the given connection-list to the cache. If the corresponding 254 * cache already exists, invalidate it and append a new one. 255 * 256 * Returns zero or a negative error code. 257 */ 258 int snd_hda_override_conn_list(struct hda_codec *codec, hda_nid_t nid, int len, 259 const hda_nid_t *list) 260 { 261 struct hda_conn_list *p; 262 263 p = lookup_conn_list(codec, nid); 264 if (p) { 265 list_del(&p->list); 266 kfree(p); 267 } 268 269 return add_conn_list(codec, nid, len, list); 270 } 271 EXPORT_SYMBOL_GPL(snd_hda_override_conn_list); 272 273 /** 274 * snd_hda_get_conn_index - get the connection index of the given NID 275 * @codec: the HDA codec 276 * @mux: NID containing the list 277 * @nid: NID to select 278 * @recursive: 1 when searching NID recursively, otherwise 0 279 * 280 * Parses the connection list of the widget @mux and checks whether the 281 * widget @nid is present. If it is, return the connection index. 282 * Otherwise it returns -1. 283 */ 284 int snd_hda_get_conn_index(struct hda_codec *codec, hda_nid_t mux, 285 hda_nid_t nid, int recursive) 286 { 287 const hda_nid_t *conn; 288 int i, nums; 289 290 nums = snd_hda_get_conn_list(codec, mux, &conn); 291 for (i = 0; i < nums; i++) 292 if (conn[i] == nid) 293 return i; 294 if (!recursive) 295 return -1; 296 if (recursive > 10) { 297 codec_dbg(codec, "too deep connection for 0x%x\n", nid); 298 return -1; 299 } 300 recursive++; 301 for (i = 0; i < nums; i++) { 302 unsigned int type = get_wcaps_type(get_wcaps(codec, conn[i])); 303 if (type == AC_WID_PIN || type == AC_WID_AUD_OUT) 304 continue; 305 if (snd_hda_get_conn_index(codec, conn[i], nid, recursive) >= 0) 306 return i; 307 } 308 return -1; 309 } 310 EXPORT_SYMBOL_GPL(snd_hda_get_conn_index); 311 312 /** 313 * snd_hda_get_num_devices - get DEVLIST_LEN parameter of the given widget 314 * @codec: the HDA codec 315 * @nid: NID of the pin to parse 316 * 317 * Get the device entry number on the given widget. This is a feature of 318 * DP MST audio. Each pin can have several device entries in it. 319 */ 320 unsigned int snd_hda_get_num_devices(struct hda_codec *codec, hda_nid_t nid) 321 { 322 unsigned int wcaps = get_wcaps(codec, nid); 323 unsigned int parm; 324 325 if (!codec->dp_mst || !(wcaps & AC_WCAP_DIGITAL) || 326 get_wcaps_type(wcaps) != AC_WID_PIN) 327 return 0; 328 329 parm = snd_hdac_read_parm_uncached(&codec->core, nid, AC_PAR_DEVLIST_LEN); 330 if (parm == -1) 331 parm = 0; 332 return parm & AC_DEV_LIST_LEN_MASK; 333 } 334 EXPORT_SYMBOL_GPL(snd_hda_get_num_devices); 335 336 /** 337 * snd_hda_get_devices - copy device list without cache 338 * @codec: the HDA codec 339 * @nid: NID of the pin to parse 340 * @dev_list: device list array 341 * @max_devices: max. number of devices to store 342 * 343 * Copy the device list. This info is dynamic and so not cached. 344 * Currently called only from hda_proc.c, so not exported. 345 */ 346 int snd_hda_get_devices(struct hda_codec *codec, hda_nid_t nid, 347 u8 *dev_list, int max_devices) 348 { 349 unsigned int parm; 350 int i, dev_len, devices; 351 352 parm = snd_hda_get_num_devices(codec, nid); 353 if (!parm) /* not multi-stream capable */ 354 return 0; 355 356 dev_len = parm + 1; 357 dev_len = dev_len < max_devices ? dev_len : max_devices; 358 359 devices = 0; 360 while (devices < dev_len) { 361 if (snd_hdac_read(&codec->core, nid, 362 AC_VERB_GET_DEVICE_LIST, devices, &parm)) 363 break; /* error */ 364 365 for (i = 0; i < 8; i++) { 366 dev_list[devices] = (u8)parm; 367 parm >>= 4; 368 devices++; 369 if (devices >= dev_len) 370 break; 371 } 372 } 373 return devices; 374 } 375 376 /** 377 * snd_hda_get_dev_select - get device entry select on the pin 378 * @codec: the HDA codec 379 * @nid: NID of the pin to get device entry select 380 * 381 * Get the devcie entry select on the pin. Return the device entry 382 * id selected on the pin. Return 0 means the first device entry 383 * is selected or MST is not supported. 384 */ 385 int snd_hda_get_dev_select(struct hda_codec *codec, hda_nid_t nid) 386 { 387 /* not support dp_mst will always return 0, using first dev_entry */ 388 if (!codec->dp_mst) 389 return 0; 390 391 return snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DEVICE_SEL, 0); 392 } 393 EXPORT_SYMBOL_GPL(snd_hda_get_dev_select); 394 395 /** 396 * snd_hda_set_dev_select - set device entry select on the pin 397 * @codec: the HDA codec 398 * @nid: NID of the pin to set device entry select 399 * @dev_id: device entry id to be set 400 * 401 * Set the device entry select on the pin nid. 402 */ 403 int snd_hda_set_dev_select(struct hda_codec *codec, hda_nid_t nid, int dev_id) 404 { 405 int ret, num_devices; 406 407 /* not support dp_mst will always return 0, using first dev_entry */ 408 if (!codec->dp_mst) 409 return 0; 410 411 /* AC_PAR_DEVLIST_LEN is 0 based. */ 412 num_devices = snd_hda_get_num_devices(codec, nid) + 1; 413 /* If Device List Length is 0 (num_device = 1), 414 * the pin is not multi stream capable. 415 * Do nothing in this case. 416 */ 417 if (num_devices == 1) 418 return 0; 419 420 /* Behavior of setting index being equal to or greater than 421 * Device List Length is not predictable 422 */ 423 if (num_devices <= dev_id) 424 return -EINVAL; 425 426 ret = snd_hda_codec_write(codec, nid, 0, 427 AC_VERB_SET_DEVICE_SEL, dev_id); 428 429 return ret; 430 } 431 EXPORT_SYMBOL_GPL(snd_hda_set_dev_select); 432 433 /* 434 * read widget caps for each widget and store in cache 435 */ 436 static int read_widget_caps(struct hda_codec *codec, hda_nid_t fg_node) 437 { 438 int i; 439 hda_nid_t nid; 440 441 codec->wcaps = kmalloc_array(codec->core.num_nodes, 4, GFP_KERNEL); 442 if (!codec->wcaps) 443 return -ENOMEM; 444 nid = codec->core.start_nid; 445 for (i = 0; i < codec->core.num_nodes; i++, nid++) 446 codec->wcaps[i] = snd_hdac_read_parm_uncached(&codec->core, 447 nid, AC_PAR_AUDIO_WIDGET_CAP); 448 return 0; 449 } 450 451 /* read all pin default configurations and save codec->init_pins */ 452 static int read_pin_defaults(struct hda_codec *codec) 453 { 454 hda_nid_t nid; 455 456 for_each_hda_codec_node(nid, codec) { 457 struct hda_pincfg *pin; 458 unsigned int wcaps = get_wcaps(codec, nid); 459 unsigned int wid_type = get_wcaps_type(wcaps); 460 if (wid_type != AC_WID_PIN) 461 continue; 462 pin = snd_array_new(&codec->init_pins); 463 if (!pin) 464 return -ENOMEM; 465 pin->nid = nid; 466 pin->cfg = snd_hda_codec_read(codec, nid, 0, 467 AC_VERB_GET_CONFIG_DEFAULT, 0); 468 /* 469 * all device entries are the same widget control so far 470 * fixme: if any codec is different, need fix here 471 */ 472 pin->ctrl = snd_hda_codec_read(codec, nid, 0, 473 AC_VERB_GET_PIN_WIDGET_CONTROL, 474 0); 475 } 476 return 0; 477 } 478 479 /* look up the given pin config list and return the item matching with NID */ 480 static struct hda_pincfg *look_up_pincfg(struct hda_codec *codec, 481 struct snd_array *array, 482 hda_nid_t nid) 483 { 484 struct hda_pincfg *pin; 485 int i; 486 487 snd_array_for_each(array, i, pin) { 488 if (pin->nid == nid) 489 return pin; 490 } 491 return NULL; 492 } 493 494 /* set the current pin config value for the given NID. 495 * the value is cached, and read via snd_hda_codec_get_pincfg() 496 */ 497 int snd_hda_add_pincfg(struct hda_codec *codec, struct snd_array *list, 498 hda_nid_t nid, unsigned int cfg) 499 { 500 struct hda_pincfg *pin; 501 502 /* the check below may be invalid when pins are added by a fixup 503 * dynamically (e.g. via snd_hda_codec_update_widgets()), so disabled 504 * for now 505 */ 506 /* 507 if (get_wcaps_type(get_wcaps(codec, nid)) != AC_WID_PIN) 508 return -EINVAL; 509 */ 510 511 pin = look_up_pincfg(codec, list, nid); 512 if (!pin) { 513 pin = snd_array_new(list); 514 if (!pin) 515 return -ENOMEM; 516 pin->nid = nid; 517 } 518 pin->cfg = cfg; 519 return 0; 520 } 521 522 /** 523 * snd_hda_codec_set_pincfg - Override a pin default configuration 524 * @codec: the HDA codec 525 * @nid: NID to set the pin config 526 * @cfg: the pin default config value 527 * 528 * Override a pin default configuration value in the cache. 529 * This value can be read by snd_hda_codec_get_pincfg() in a higher 530 * priority than the real hardware value. 531 */ 532 int snd_hda_codec_set_pincfg(struct hda_codec *codec, 533 hda_nid_t nid, unsigned int cfg) 534 { 535 return snd_hda_add_pincfg(codec, &codec->driver_pins, nid, cfg); 536 } 537 EXPORT_SYMBOL_GPL(snd_hda_codec_set_pincfg); 538 539 /** 540 * snd_hda_codec_get_pincfg - Obtain a pin-default configuration 541 * @codec: the HDA codec 542 * @nid: NID to get the pin config 543 * 544 * Get the current pin config value of the given pin NID. 545 * If the pincfg value is cached or overridden via sysfs or driver, 546 * returns the cached value. 547 */ 548 unsigned int snd_hda_codec_get_pincfg(struct hda_codec *codec, hda_nid_t nid) 549 { 550 struct hda_pincfg *pin; 551 552 #ifdef CONFIG_SND_HDA_RECONFIG 553 { 554 unsigned int cfg = 0; 555 mutex_lock(&codec->user_mutex); 556 pin = look_up_pincfg(codec, &codec->user_pins, nid); 557 if (pin) 558 cfg = pin->cfg; 559 mutex_unlock(&codec->user_mutex); 560 if (cfg) 561 return cfg; 562 } 563 #endif 564 pin = look_up_pincfg(codec, &codec->driver_pins, nid); 565 if (pin) 566 return pin->cfg; 567 pin = look_up_pincfg(codec, &codec->init_pins, nid); 568 if (pin) 569 return pin->cfg; 570 return 0; 571 } 572 EXPORT_SYMBOL_GPL(snd_hda_codec_get_pincfg); 573 574 /** 575 * snd_hda_codec_set_pin_target - remember the current pinctl target value 576 * @codec: the HDA codec 577 * @nid: pin NID 578 * @val: assigned pinctl value 579 * 580 * This function stores the given value to a pinctl target value in the 581 * pincfg table. This isn't always as same as the actually written value 582 * but can be referred at any time via snd_hda_codec_get_pin_target(). 583 */ 584 int snd_hda_codec_set_pin_target(struct hda_codec *codec, hda_nid_t nid, 585 unsigned int val) 586 { 587 struct hda_pincfg *pin; 588 589 pin = look_up_pincfg(codec, &codec->init_pins, nid); 590 if (!pin) 591 return -EINVAL; 592 pin->target = val; 593 return 0; 594 } 595 EXPORT_SYMBOL_GPL(snd_hda_codec_set_pin_target); 596 597 /** 598 * snd_hda_codec_get_pin_target - return the current pinctl target value 599 * @codec: the HDA codec 600 * @nid: pin NID 601 */ 602 int snd_hda_codec_get_pin_target(struct hda_codec *codec, hda_nid_t nid) 603 { 604 struct hda_pincfg *pin; 605 606 pin = look_up_pincfg(codec, &codec->init_pins, nid); 607 if (!pin) 608 return 0; 609 return pin->target; 610 } 611 EXPORT_SYMBOL_GPL(snd_hda_codec_get_pin_target); 612 613 /** 614 * snd_hda_shutup_pins - Shut up all pins 615 * @codec: the HDA codec 616 * 617 * Clear all pin controls to shup up before suspend for avoiding click noise. 618 * The controls aren't cached so that they can be resumed properly. 619 */ 620 void snd_hda_shutup_pins(struct hda_codec *codec) 621 { 622 const struct hda_pincfg *pin; 623 int i; 624 625 /* don't shut up pins when unloading the driver; otherwise it breaks 626 * the default pin setup at the next load of the driver 627 */ 628 if (codec->bus->shutdown) 629 return; 630 snd_array_for_each(&codec->init_pins, i, pin) { 631 /* use read here for syncing after issuing each verb */ 632 snd_hda_codec_read(codec, pin->nid, 0, 633 AC_VERB_SET_PIN_WIDGET_CONTROL, 0); 634 } 635 codec->pins_shutup = 1; 636 } 637 EXPORT_SYMBOL_GPL(snd_hda_shutup_pins); 638 639 #ifdef CONFIG_PM 640 /* Restore the pin controls cleared previously via snd_hda_shutup_pins() */ 641 static void restore_shutup_pins(struct hda_codec *codec) 642 { 643 const struct hda_pincfg *pin; 644 int i; 645 646 if (!codec->pins_shutup) 647 return; 648 if (codec->bus->shutdown) 649 return; 650 snd_array_for_each(&codec->init_pins, i, pin) { 651 snd_hda_codec_write(codec, pin->nid, 0, 652 AC_VERB_SET_PIN_WIDGET_CONTROL, 653 pin->ctrl); 654 } 655 codec->pins_shutup = 0; 656 } 657 #endif 658 659 static void hda_jackpoll_work(struct work_struct *work) 660 { 661 struct hda_codec *codec = 662 container_of(work, struct hda_codec, jackpoll_work.work); 663 664 snd_hda_jack_set_dirty_all(codec); 665 snd_hda_jack_poll_all(codec); 666 667 if (!codec->jackpoll_interval) 668 return; 669 670 schedule_delayed_work(&codec->jackpoll_work, 671 codec->jackpoll_interval); 672 } 673 674 /* release all pincfg lists */ 675 static void free_init_pincfgs(struct hda_codec *codec) 676 { 677 snd_array_free(&codec->driver_pins); 678 #ifdef CONFIG_SND_HDA_RECONFIG 679 snd_array_free(&codec->user_pins); 680 #endif 681 snd_array_free(&codec->init_pins); 682 } 683 684 /* 685 * audio-converter setup caches 686 */ 687 struct hda_cvt_setup { 688 hda_nid_t nid; 689 u8 stream_tag; 690 u8 channel_id; 691 u16 format_id; 692 unsigned char active; /* cvt is currently used */ 693 unsigned char dirty; /* setups should be cleared */ 694 }; 695 696 /* get or create a cache entry for the given audio converter NID */ 697 static struct hda_cvt_setup * 698 get_hda_cvt_setup(struct hda_codec *codec, hda_nid_t nid) 699 { 700 struct hda_cvt_setup *p; 701 int i; 702 703 snd_array_for_each(&codec->cvt_setups, i, p) { 704 if (p->nid == nid) 705 return p; 706 } 707 p = snd_array_new(&codec->cvt_setups); 708 if (p) 709 p->nid = nid; 710 return p; 711 } 712 713 /* 714 * PCM device 715 */ 716 static void release_pcm(struct kref *kref) 717 { 718 struct hda_pcm *pcm = container_of(kref, struct hda_pcm, kref); 719 720 if (pcm->pcm) 721 snd_device_free(pcm->codec->card, pcm->pcm); 722 clear_bit(pcm->device, pcm->codec->bus->pcm_dev_bits); 723 kfree(pcm->name); 724 kfree(pcm); 725 } 726 727 void snd_hda_codec_pcm_put(struct hda_pcm *pcm) 728 { 729 kref_put(&pcm->kref, release_pcm); 730 } 731 EXPORT_SYMBOL_GPL(snd_hda_codec_pcm_put); 732 733 struct hda_pcm *snd_hda_codec_pcm_new(struct hda_codec *codec, 734 const char *fmt, ...) 735 { 736 struct hda_pcm *pcm; 737 va_list args; 738 739 pcm = kzalloc(sizeof(*pcm), GFP_KERNEL); 740 if (!pcm) 741 return NULL; 742 743 pcm->codec = codec; 744 kref_init(&pcm->kref); 745 va_start(args, fmt); 746 pcm->name = kvasprintf(GFP_KERNEL, fmt, args); 747 va_end(args); 748 if (!pcm->name) { 749 kfree(pcm); 750 return NULL; 751 } 752 753 list_add_tail(&pcm->list, &codec->pcm_list_head); 754 return pcm; 755 } 756 EXPORT_SYMBOL_GPL(snd_hda_codec_pcm_new); 757 758 /* 759 * codec destructor 760 */ 761 static void codec_release_pcms(struct hda_codec *codec) 762 { 763 struct hda_pcm *pcm, *n; 764 765 list_for_each_entry_safe(pcm, n, &codec->pcm_list_head, list) { 766 list_del_init(&pcm->list); 767 if (pcm->pcm) 768 snd_device_disconnect(codec->card, pcm->pcm); 769 snd_hda_codec_pcm_put(pcm); 770 } 771 } 772 773 void snd_hda_codec_cleanup_for_unbind(struct hda_codec *codec) 774 { 775 if (codec->registered) { 776 /* pm_runtime_put() is called in snd_hdac_device_exit() */ 777 pm_runtime_get_noresume(hda_codec_dev(codec)); 778 pm_runtime_disable(hda_codec_dev(codec)); 779 codec->registered = 0; 780 } 781 782 cancel_delayed_work_sync(&codec->jackpoll_work); 783 if (!codec->in_freeing) 784 snd_hda_ctls_clear(codec); 785 codec_release_pcms(codec); 786 snd_hda_detach_beep_device(codec); 787 memset(&codec->patch_ops, 0, sizeof(codec->patch_ops)); 788 snd_hda_jack_tbl_clear(codec); 789 codec->proc_widget_hook = NULL; 790 codec->spec = NULL; 791 792 /* free only driver_pins so that init_pins + user_pins are restored */ 793 snd_array_free(&codec->driver_pins); 794 snd_array_free(&codec->cvt_setups); 795 snd_array_free(&codec->spdif_out); 796 snd_array_free(&codec->verbs); 797 codec->preset = NULL; 798 codec->slave_dig_outs = NULL; 799 codec->spdif_status_reset = 0; 800 snd_array_free(&codec->mixers); 801 snd_array_free(&codec->nids); 802 remove_conn_list(codec); 803 snd_hdac_regmap_exit(&codec->core); 804 } 805 806 static unsigned int hda_set_power_state(struct hda_codec *codec, 807 unsigned int power_state); 808 809 /* also called from hda_bind.c */ 810 void snd_hda_codec_register(struct hda_codec *codec) 811 { 812 if (codec->registered) 813 return; 814 if (device_is_registered(hda_codec_dev(codec))) { 815 snd_hda_register_beep_device(codec); 816 snd_hdac_link_power(&codec->core, true); 817 pm_runtime_enable(hda_codec_dev(codec)); 818 /* it was powered up in snd_hda_codec_new(), now all done */ 819 snd_hda_power_down(codec); 820 codec->registered = 1; 821 } 822 } 823 824 static int snd_hda_codec_dev_register(struct snd_device *device) 825 { 826 snd_hda_codec_register(device->device_data); 827 return 0; 828 } 829 830 static int snd_hda_codec_dev_disconnect(struct snd_device *device) 831 { 832 struct hda_codec *codec = device->device_data; 833 834 snd_hda_detach_beep_device(codec); 835 return 0; 836 } 837 838 static int snd_hda_codec_dev_free(struct snd_device *device) 839 { 840 struct hda_codec *codec = device->device_data; 841 842 codec->in_freeing = 1; 843 snd_hdac_device_unregister(&codec->core); 844 snd_hdac_link_power(&codec->core, false); 845 put_device(hda_codec_dev(codec)); 846 return 0; 847 } 848 849 static void snd_hda_codec_dev_release(struct device *dev) 850 { 851 struct hda_codec *codec = dev_to_hda_codec(dev); 852 853 free_init_pincfgs(codec); 854 snd_hdac_device_exit(&codec->core); 855 snd_hda_sysfs_clear(codec); 856 kfree(codec->modelname); 857 kfree(codec->wcaps); 858 kfree(codec); 859 } 860 861 /** 862 * snd_hda_codec_new - create a HDA codec 863 * @bus: the bus to assign 864 * @codec_addr: the codec address 865 * @codecp: the pointer to store the generated codec 866 * 867 * Returns 0 if successful, or a negative error code. 868 */ 869 int snd_hda_codec_new(struct hda_bus *bus, struct snd_card *card, 870 unsigned int codec_addr, struct hda_codec **codecp) 871 { 872 struct hda_codec *codec; 873 char component[31]; 874 hda_nid_t fg; 875 int err; 876 static struct snd_device_ops dev_ops = { 877 .dev_register = snd_hda_codec_dev_register, 878 .dev_disconnect = snd_hda_codec_dev_disconnect, 879 .dev_free = snd_hda_codec_dev_free, 880 }; 881 882 if (snd_BUG_ON(!bus)) 883 return -EINVAL; 884 if (snd_BUG_ON(codec_addr > HDA_MAX_CODEC_ADDRESS)) 885 return -EINVAL; 886 887 codec = kzalloc(sizeof(*codec), GFP_KERNEL); 888 if (!codec) 889 return -ENOMEM; 890 891 sprintf(component, "hdaudioC%dD%d", card->number, codec_addr); 892 err = snd_hdac_device_init(&codec->core, &bus->core, component, 893 codec_addr); 894 if (err < 0) { 895 kfree(codec); 896 return err; 897 } 898 899 codec->core.dev.release = snd_hda_codec_dev_release; 900 codec->core.type = HDA_DEV_LEGACY; 901 codec->core.exec_verb = codec_exec_verb; 902 903 codec->bus = bus; 904 codec->card = card; 905 codec->addr = codec_addr; 906 mutex_init(&codec->spdif_mutex); 907 mutex_init(&codec->control_mutex); 908 snd_array_init(&codec->mixers, sizeof(struct hda_nid_item), 32); 909 snd_array_init(&codec->nids, sizeof(struct hda_nid_item), 32); 910 snd_array_init(&codec->init_pins, sizeof(struct hda_pincfg), 16); 911 snd_array_init(&codec->driver_pins, sizeof(struct hda_pincfg), 16); 912 snd_array_init(&codec->cvt_setups, sizeof(struct hda_cvt_setup), 8); 913 snd_array_init(&codec->spdif_out, sizeof(struct hda_spdif_out), 16); 914 snd_array_init(&codec->jacktbl, sizeof(struct hda_jack_tbl), 16); 915 snd_array_init(&codec->verbs, sizeof(struct hda_verb *), 8); 916 INIT_LIST_HEAD(&codec->conn_list); 917 INIT_LIST_HEAD(&codec->pcm_list_head); 918 919 INIT_DELAYED_WORK(&codec->jackpoll_work, hda_jackpoll_work); 920 codec->depop_delay = -1; 921 codec->fixup_id = HDA_FIXUP_ID_NOT_SET; 922 923 #ifdef CONFIG_PM 924 codec->power_jiffies = jiffies; 925 #endif 926 927 snd_hda_sysfs_init(codec); 928 929 if (codec->bus->modelname) { 930 codec->modelname = kstrdup(codec->bus->modelname, GFP_KERNEL); 931 if (!codec->modelname) { 932 err = -ENOMEM; 933 goto error; 934 } 935 } 936 937 fg = codec->core.afg ? codec->core.afg : codec->core.mfg; 938 err = read_widget_caps(codec, fg); 939 if (err < 0) 940 goto error; 941 err = read_pin_defaults(codec); 942 if (err < 0) 943 goto error; 944 945 /* power-up all before initialization */ 946 hda_set_power_state(codec, AC_PWRST_D0); 947 948 snd_hda_codec_proc_new(codec); 949 950 snd_hda_create_hwdep(codec); 951 952 sprintf(component, "HDA:%08x,%08x,%08x", codec->core.vendor_id, 953 codec->core.subsystem_id, codec->core.revision_id); 954 snd_component_add(card, component); 955 956 err = snd_device_new(card, SNDRV_DEV_CODEC, codec, &dev_ops); 957 if (err < 0) 958 goto error; 959 960 if (codecp) 961 *codecp = codec; 962 return 0; 963 964 error: 965 put_device(hda_codec_dev(codec)); 966 return err; 967 } 968 EXPORT_SYMBOL_GPL(snd_hda_codec_new); 969 970 /** 971 * snd_hda_codec_update_widgets - Refresh widget caps and pin defaults 972 * @codec: the HDA codec 973 * 974 * Forcibly refresh the all widget caps and the init pin configurations of 975 * the given codec. 976 */ 977 int snd_hda_codec_update_widgets(struct hda_codec *codec) 978 { 979 hda_nid_t fg; 980 int err; 981 982 err = snd_hdac_refresh_widgets(&codec->core, true); 983 if (err < 0) 984 return err; 985 986 /* Assume the function group node does not change, 987 * only the widget nodes may change. 988 */ 989 kfree(codec->wcaps); 990 fg = codec->core.afg ? codec->core.afg : codec->core.mfg; 991 err = read_widget_caps(codec, fg); 992 if (err < 0) 993 return err; 994 995 snd_array_free(&codec->init_pins); 996 err = read_pin_defaults(codec); 997 998 return err; 999 } 1000 EXPORT_SYMBOL_GPL(snd_hda_codec_update_widgets); 1001 1002 /* update the stream-id if changed */ 1003 static void update_pcm_stream_id(struct hda_codec *codec, 1004 struct hda_cvt_setup *p, hda_nid_t nid, 1005 u32 stream_tag, int channel_id) 1006 { 1007 unsigned int oldval, newval; 1008 1009 if (p->stream_tag != stream_tag || p->channel_id != channel_id) { 1010 oldval = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONV, 0); 1011 newval = (stream_tag << 4) | channel_id; 1012 if (oldval != newval) 1013 snd_hda_codec_write(codec, nid, 0, 1014 AC_VERB_SET_CHANNEL_STREAMID, 1015 newval); 1016 p->stream_tag = stream_tag; 1017 p->channel_id = channel_id; 1018 } 1019 } 1020 1021 /* update the format-id if changed */ 1022 static void update_pcm_format(struct hda_codec *codec, struct hda_cvt_setup *p, 1023 hda_nid_t nid, int format) 1024 { 1025 unsigned int oldval; 1026 1027 if (p->format_id != format) { 1028 oldval = snd_hda_codec_read(codec, nid, 0, 1029 AC_VERB_GET_STREAM_FORMAT, 0); 1030 if (oldval != format) { 1031 msleep(1); 1032 snd_hda_codec_write(codec, nid, 0, 1033 AC_VERB_SET_STREAM_FORMAT, 1034 format); 1035 } 1036 p->format_id = format; 1037 } 1038 } 1039 1040 /** 1041 * snd_hda_codec_setup_stream - set up the codec for streaming 1042 * @codec: the CODEC to set up 1043 * @nid: the NID to set up 1044 * @stream_tag: stream tag to pass, it's between 0x1 and 0xf. 1045 * @channel_id: channel id to pass, zero based. 1046 * @format: stream format. 1047 */ 1048 void snd_hda_codec_setup_stream(struct hda_codec *codec, hda_nid_t nid, 1049 u32 stream_tag, 1050 int channel_id, int format) 1051 { 1052 struct hda_codec *c; 1053 struct hda_cvt_setup *p; 1054 int type; 1055 int i; 1056 1057 if (!nid) 1058 return; 1059 1060 codec_dbg(codec, 1061 "hda_codec_setup_stream: NID=0x%x, stream=0x%x, channel=%d, format=0x%x\n", 1062 nid, stream_tag, channel_id, format); 1063 p = get_hda_cvt_setup(codec, nid); 1064 if (!p) 1065 return; 1066 1067 if (codec->patch_ops.stream_pm) 1068 codec->patch_ops.stream_pm(codec, nid, true); 1069 if (codec->pcm_format_first) 1070 update_pcm_format(codec, p, nid, format); 1071 update_pcm_stream_id(codec, p, nid, stream_tag, channel_id); 1072 if (!codec->pcm_format_first) 1073 update_pcm_format(codec, p, nid, format); 1074 1075 p->active = 1; 1076 p->dirty = 0; 1077 1078 /* make other inactive cvts with the same stream-tag dirty */ 1079 type = get_wcaps_type(get_wcaps(codec, nid)); 1080 list_for_each_codec(c, codec->bus) { 1081 snd_array_for_each(&c->cvt_setups, i, p) { 1082 if (!p->active && p->stream_tag == stream_tag && 1083 get_wcaps_type(get_wcaps(c, p->nid)) == type) 1084 p->dirty = 1; 1085 } 1086 } 1087 } 1088 EXPORT_SYMBOL_GPL(snd_hda_codec_setup_stream); 1089 1090 static void really_cleanup_stream(struct hda_codec *codec, 1091 struct hda_cvt_setup *q); 1092 1093 /** 1094 * __snd_hda_codec_cleanup_stream - clean up the codec for closing 1095 * @codec: the CODEC to clean up 1096 * @nid: the NID to clean up 1097 * @do_now: really clean up the stream instead of clearing the active flag 1098 */ 1099 void __snd_hda_codec_cleanup_stream(struct hda_codec *codec, hda_nid_t nid, 1100 int do_now) 1101 { 1102 struct hda_cvt_setup *p; 1103 1104 if (!nid) 1105 return; 1106 1107 if (codec->no_sticky_stream) 1108 do_now = 1; 1109 1110 codec_dbg(codec, "hda_codec_cleanup_stream: NID=0x%x\n", nid); 1111 p = get_hda_cvt_setup(codec, nid); 1112 if (p) { 1113 /* here we just clear the active flag when do_now isn't set; 1114 * actual clean-ups will be done later in 1115 * purify_inactive_streams() called from snd_hda_codec_prpapre() 1116 */ 1117 if (do_now) 1118 really_cleanup_stream(codec, p); 1119 else 1120 p->active = 0; 1121 } 1122 } 1123 EXPORT_SYMBOL_GPL(__snd_hda_codec_cleanup_stream); 1124 1125 static void really_cleanup_stream(struct hda_codec *codec, 1126 struct hda_cvt_setup *q) 1127 { 1128 hda_nid_t nid = q->nid; 1129 if (q->stream_tag || q->channel_id) 1130 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_CHANNEL_STREAMID, 0); 1131 if (q->format_id) 1132 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_STREAM_FORMAT, 0 1133 ); 1134 memset(q, 0, sizeof(*q)); 1135 q->nid = nid; 1136 if (codec->patch_ops.stream_pm) 1137 codec->patch_ops.stream_pm(codec, nid, false); 1138 } 1139 1140 /* clean up the all conflicting obsolete streams */ 1141 static void purify_inactive_streams(struct hda_codec *codec) 1142 { 1143 struct hda_codec *c; 1144 struct hda_cvt_setup *p; 1145 int i; 1146 1147 list_for_each_codec(c, codec->bus) { 1148 snd_array_for_each(&c->cvt_setups, i, p) { 1149 if (p->dirty) 1150 really_cleanup_stream(c, p); 1151 } 1152 } 1153 } 1154 1155 #ifdef CONFIG_PM 1156 /* clean up all streams; called from suspend */ 1157 static void hda_cleanup_all_streams(struct hda_codec *codec) 1158 { 1159 struct hda_cvt_setup *p; 1160 int i; 1161 1162 snd_array_for_each(&codec->cvt_setups, i, p) { 1163 if (p->stream_tag) 1164 really_cleanup_stream(codec, p); 1165 } 1166 } 1167 #endif 1168 1169 /* 1170 * amp access functions 1171 */ 1172 1173 /** 1174 * query_amp_caps - query AMP capabilities 1175 * @codec: the HD-auio codec 1176 * @nid: the NID to query 1177 * @direction: either #HDA_INPUT or #HDA_OUTPUT 1178 * 1179 * Query AMP capabilities for the given widget and direction. 1180 * Returns the obtained capability bits. 1181 * 1182 * When cap bits have been already read, this doesn't read again but 1183 * returns the cached value. 1184 */ 1185 u32 query_amp_caps(struct hda_codec *codec, hda_nid_t nid, int direction) 1186 { 1187 if (!(get_wcaps(codec, nid) & AC_WCAP_AMP_OVRD)) 1188 nid = codec->core.afg; 1189 return snd_hda_param_read(codec, nid, 1190 direction == HDA_OUTPUT ? 1191 AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP); 1192 } 1193 EXPORT_SYMBOL_GPL(query_amp_caps); 1194 1195 /** 1196 * snd_hda_check_amp_caps - query AMP capabilities 1197 * @codec: the HD-audio codec 1198 * @nid: the NID to query 1199 * @dir: either #HDA_INPUT or #HDA_OUTPUT 1200 * @bits: bit mask to check the result 1201 * 1202 * Check whether the widget has the given amp capability for the direction. 1203 */ 1204 bool snd_hda_check_amp_caps(struct hda_codec *codec, hda_nid_t nid, 1205 int dir, unsigned int bits) 1206 { 1207 if (!nid) 1208 return false; 1209 if (get_wcaps(codec, nid) & (1 << (dir + 1))) 1210 if (query_amp_caps(codec, nid, dir) & bits) 1211 return true; 1212 return false; 1213 } 1214 EXPORT_SYMBOL_GPL(snd_hda_check_amp_caps); 1215 1216 /** 1217 * snd_hda_override_amp_caps - Override the AMP capabilities 1218 * @codec: the CODEC to clean up 1219 * @nid: the NID to clean up 1220 * @dir: either #HDA_INPUT or #HDA_OUTPUT 1221 * @caps: the capability bits to set 1222 * 1223 * Override the cached AMP caps bits value by the given one. 1224 * This function is useful if the driver needs to adjust the AMP ranges, 1225 * e.g. limit to 0dB, etc. 1226 * 1227 * Returns zero if successful or a negative error code. 1228 */ 1229 int snd_hda_override_amp_caps(struct hda_codec *codec, hda_nid_t nid, int dir, 1230 unsigned int caps) 1231 { 1232 unsigned int parm; 1233 1234 snd_hda_override_wcaps(codec, nid, 1235 get_wcaps(codec, nid) | AC_WCAP_AMP_OVRD); 1236 parm = dir == HDA_OUTPUT ? AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP; 1237 return snd_hdac_override_parm(&codec->core, nid, parm, caps); 1238 } 1239 EXPORT_SYMBOL_GPL(snd_hda_override_amp_caps); 1240 1241 /** 1242 * snd_hda_codec_amp_update - update the AMP mono value 1243 * @codec: HD-audio codec 1244 * @nid: NID to read the AMP value 1245 * @ch: channel to update (0 or 1) 1246 * @dir: #HDA_INPUT or #HDA_OUTPUT 1247 * @idx: the index value (only for input direction) 1248 * @mask: bit mask to set 1249 * @val: the bits value to set 1250 * 1251 * Update the AMP values for the given channel, direction and index. 1252 */ 1253 int snd_hda_codec_amp_update(struct hda_codec *codec, hda_nid_t nid, 1254 int ch, int dir, int idx, int mask, int val) 1255 { 1256 unsigned int cmd = snd_hdac_regmap_encode_amp(nid, ch, dir, idx); 1257 1258 /* enable fake mute if no h/w mute but min=mute */ 1259 if ((query_amp_caps(codec, nid, dir) & 1260 (AC_AMPCAP_MUTE | AC_AMPCAP_MIN_MUTE)) == AC_AMPCAP_MIN_MUTE) 1261 cmd |= AC_AMP_FAKE_MUTE; 1262 return snd_hdac_regmap_update_raw(&codec->core, cmd, mask, val); 1263 } 1264 EXPORT_SYMBOL_GPL(snd_hda_codec_amp_update); 1265 1266 /** 1267 * snd_hda_codec_amp_stereo - update the AMP stereo values 1268 * @codec: HD-audio codec 1269 * @nid: NID to read the AMP value 1270 * @direction: #HDA_INPUT or #HDA_OUTPUT 1271 * @idx: the index value (only for input direction) 1272 * @mask: bit mask to set 1273 * @val: the bits value to set 1274 * 1275 * Update the AMP values like snd_hda_codec_amp_update(), but for a 1276 * stereo widget with the same mask and value. 1277 */ 1278 int snd_hda_codec_amp_stereo(struct hda_codec *codec, hda_nid_t nid, 1279 int direction, int idx, int mask, int val) 1280 { 1281 int ch, ret = 0; 1282 1283 if (snd_BUG_ON(mask & ~0xff)) 1284 mask &= 0xff; 1285 for (ch = 0; ch < 2; ch++) 1286 ret |= snd_hda_codec_amp_update(codec, nid, ch, direction, 1287 idx, mask, val); 1288 return ret; 1289 } 1290 EXPORT_SYMBOL_GPL(snd_hda_codec_amp_stereo); 1291 1292 /** 1293 * snd_hda_codec_amp_init - initialize the AMP value 1294 * @codec: the HDA codec 1295 * @nid: NID to read the AMP value 1296 * @ch: channel (left=0 or right=1) 1297 * @dir: #HDA_INPUT or #HDA_OUTPUT 1298 * @idx: the index value (only for input direction) 1299 * @mask: bit mask to set 1300 * @val: the bits value to set 1301 * 1302 * Works like snd_hda_codec_amp_update() but it writes the value only at 1303 * the first access. If the amp was already initialized / updated beforehand, 1304 * this does nothing. 1305 */ 1306 int snd_hda_codec_amp_init(struct hda_codec *codec, hda_nid_t nid, int ch, 1307 int dir, int idx, int mask, int val) 1308 { 1309 int orig; 1310 1311 if (!codec->core.regmap) 1312 return -EINVAL; 1313 regcache_cache_only(codec->core.regmap, true); 1314 orig = snd_hda_codec_amp_read(codec, nid, ch, dir, idx); 1315 regcache_cache_only(codec->core.regmap, false); 1316 if (orig >= 0) 1317 return 0; 1318 return snd_hda_codec_amp_update(codec, nid, ch, dir, idx, mask, val); 1319 } 1320 EXPORT_SYMBOL_GPL(snd_hda_codec_amp_init); 1321 1322 /** 1323 * snd_hda_codec_amp_init_stereo - initialize the stereo AMP value 1324 * @codec: the HDA codec 1325 * @nid: NID to read the AMP value 1326 * @dir: #HDA_INPUT or #HDA_OUTPUT 1327 * @idx: the index value (only for input direction) 1328 * @mask: bit mask to set 1329 * @val: the bits value to set 1330 * 1331 * Call snd_hda_codec_amp_init() for both stereo channels. 1332 */ 1333 int snd_hda_codec_amp_init_stereo(struct hda_codec *codec, hda_nid_t nid, 1334 int dir, int idx, int mask, int val) 1335 { 1336 int ch, ret = 0; 1337 1338 if (snd_BUG_ON(mask & ~0xff)) 1339 mask &= 0xff; 1340 for (ch = 0; ch < 2; ch++) 1341 ret |= snd_hda_codec_amp_init(codec, nid, ch, dir, 1342 idx, mask, val); 1343 return ret; 1344 } 1345 EXPORT_SYMBOL_GPL(snd_hda_codec_amp_init_stereo); 1346 1347 static u32 get_amp_max_value(struct hda_codec *codec, hda_nid_t nid, int dir, 1348 unsigned int ofs) 1349 { 1350 u32 caps = query_amp_caps(codec, nid, dir); 1351 /* get num steps */ 1352 caps = (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT; 1353 if (ofs < caps) 1354 caps -= ofs; 1355 return caps; 1356 } 1357 1358 /** 1359 * snd_hda_mixer_amp_volume_info - Info callback for a standard AMP mixer 1360 * @kcontrol: referred ctl element 1361 * @uinfo: pointer to get/store the data 1362 * 1363 * The control element is supposed to have the private_value field 1364 * set up via HDA_COMPOSE_AMP_VAL*() or related macros. 1365 */ 1366 int snd_hda_mixer_amp_volume_info(struct snd_kcontrol *kcontrol, 1367 struct snd_ctl_elem_info *uinfo) 1368 { 1369 struct hda_codec *codec = snd_kcontrol_chip(kcontrol); 1370 u16 nid = get_amp_nid(kcontrol); 1371 u8 chs = get_amp_channels(kcontrol); 1372 int dir = get_amp_direction(kcontrol); 1373 unsigned int ofs = get_amp_offset(kcontrol); 1374 1375 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; 1376 uinfo->count = chs == 3 ? 2 : 1; 1377 uinfo->value.integer.min = 0; 1378 uinfo->value.integer.max = get_amp_max_value(codec, nid, dir, ofs); 1379 if (!uinfo->value.integer.max) { 1380 codec_warn(codec, 1381 "num_steps = 0 for NID=0x%x (ctl = %s)\n", 1382 nid, kcontrol->id.name); 1383 return -EINVAL; 1384 } 1385 return 0; 1386 } 1387 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_volume_info); 1388 1389 1390 static inline unsigned int 1391 read_amp_value(struct hda_codec *codec, hda_nid_t nid, 1392 int ch, int dir, int idx, unsigned int ofs) 1393 { 1394 unsigned int val; 1395 val = snd_hda_codec_amp_read(codec, nid, ch, dir, idx); 1396 val &= HDA_AMP_VOLMASK; 1397 if (val >= ofs) 1398 val -= ofs; 1399 else 1400 val = 0; 1401 return val; 1402 } 1403 1404 static inline int 1405 update_amp_value(struct hda_codec *codec, hda_nid_t nid, 1406 int ch, int dir, int idx, unsigned int ofs, 1407 unsigned int val) 1408 { 1409 unsigned int maxval; 1410 1411 if (val > 0) 1412 val += ofs; 1413 /* ofs = 0: raw max value */ 1414 maxval = get_amp_max_value(codec, nid, dir, 0); 1415 if (val > maxval) 1416 val = maxval; 1417 return snd_hda_codec_amp_update(codec, nid, ch, dir, idx, 1418 HDA_AMP_VOLMASK, val); 1419 } 1420 1421 /** 1422 * snd_hda_mixer_amp_volume_get - Get callback for a standard AMP mixer volume 1423 * @kcontrol: ctl element 1424 * @ucontrol: pointer to get/store the data 1425 * 1426 * The control element is supposed to have the private_value field 1427 * set up via HDA_COMPOSE_AMP_VAL*() or related macros. 1428 */ 1429 int snd_hda_mixer_amp_volume_get(struct snd_kcontrol *kcontrol, 1430 struct snd_ctl_elem_value *ucontrol) 1431 { 1432 struct hda_codec *codec = snd_kcontrol_chip(kcontrol); 1433 hda_nid_t nid = get_amp_nid(kcontrol); 1434 int chs = get_amp_channels(kcontrol); 1435 int dir = get_amp_direction(kcontrol); 1436 int idx = get_amp_index(kcontrol); 1437 unsigned int ofs = get_amp_offset(kcontrol); 1438 long *valp = ucontrol->value.integer.value; 1439 1440 if (chs & 1) 1441 *valp++ = read_amp_value(codec, nid, 0, dir, idx, ofs); 1442 if (chs & 2) 1443 *valp = read_amp_value(codec, nid, 1, dir, idx, ofs); 1444 return 0; 1445 } 1446 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_volume_get); 1447 1448 /** 1449 * snd_hda_mixer_amp_volume_put - Put callback for a standard AMP mixer volume 1450 * @kcontrol: ctl element 1451 * @ucontrol: pointer to get/store the data 1452 * 1453 * The control element is supposed to have the private_value field 1454 * set up via HDA_COMPOSE_AMP_VAL*() or related macros. 1455 */ 1456 int snd_hda_mixer_amp_volume_put(struct snd_kcontrol *kcontrol, 1457 struct snd_ctl_elem_value *ucontrol) 1458 { 1459 struct hda_codec *codec = snd_kcontrol_chip(kcontrol); 1460 hda_nid_t nid = get_amp_nid(kcontrol); 1461 int chs = get_amp_channels(kcontrol); 1462 int dir = get_amp_direction(kcontrol); 1463 int idx = get_amp_index(kcontrol); 1464 unsigned int ofs = get_amp_offset(kcontrol); 1465 long *valp = ucontrol->value.integer.value; 1466 int change = 0; 1467 1468 if (chs & 1) { 1469 change = update_amp_value(codec, nid, 0, dir, idx, ofs, *valp); 1470 valp++; 1471 } 1472 if (chs & 2) 1473 change |= update_amp_value(codec, nid, 1, dir, idx, ofs, *valp); 1474 return change; 1475 } 1476 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_volume_put); 1477 1478 /* inquiry the amp caps and convert to TLV */ 1479 static void get_ctl_amp_tlv(struct snd_kcontrol *kcontrol, unsigned int *tlv) 1480 { 1481 struct hda_codec *codec = snd_kcontrol_chip(kcontrol); 1482 hda_nid_t nid = get_amp_nid(kcontrol); 1483 int dir = get_amp_direction(kcontrol); 1484 unsigned int ofs = get_amp_offset(kcontrol); 1485 bool min_mute = get_amp_min_mute(kcontrol); 1486 u32 caps, val1, val2; 1487 1488 caps = query_amp_caps(codec, nid, dir); 1489 val2 = (caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT; 1490 val2 = (val2 + 1) * 25; 1491 val1 = -((caps & AC_AMPCAP_OFFSET) >> AC_AMPCAP_OFFSET_SHIFT); 1492 val1 += ofs; 1493 val1 = ((int)val1) * ((int)val2); 1494 if (min_mute || (caps & AC_AMPCAP_MIN_MUTE)) 1495 val2 |= TLV_DB_SCALE_MUTE; 1496 tlv[SNDRV_CTL_TLVO_TYPE] = SNDRV_CTL_TLVT_DB_SCALE; 1497 tlv[SNDRV_CTL_TLVO_LEN] = 2 * sizeof(unsigned int); 1498 tlv[SNDRV_CTL_TLVO_DB_SCALE_MIN] = val1; 1499 tlv[SNDRV_CTL_TLVO_DB_SCALE_MUTE_AND_STEP] = val2; 1500 } 1501 1502 /** 1503 * snd_hda_mixer_amp_tlv - TLV callback for a standard AMP mixer volume 1504 * @kcontrol: ctl element 1505 * @op_flag: operation flag 1506 * @size: byte size of input TLV 1507 * @_tlv: TLV data 1508 * 1509 * The control element is supposed to have the private_value field 1510 * set up via HDA_COMPOSE_AMP_VAL*() or related macros. 1511 */ 1512 int snd_hda_mixer_amp_tlv(struct snd_kcontrol *kcontrol, int op_flag, 1513 unsigned int size, unsigned int __user *_tlv) 1514 { 1515 unsigned int tlv[4]; 1516 1517 if (size < 4 * sizeof(unsigned int)) 1518 return -ENOMEM; 1519 get_ctl_amp_tlv(kcontrol, tlv); 1520 if (copy_to_user(_tlv, tlv, sizeof(tlv))) 1521 return -EFAULT; 1522 return 0; 1523 } 1524 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_tlv); 1525 1526 /** 1527 * snd_hda_set_vmaster_tlv - Set TLV for a virtual master control 1528 * @codec: HD-audio codec 1529 * @nid: NID of a reference widget 1530 * @dir: #HDA_INPUT or #HDA_OUTPUT 1531 * @tlv: TLV data to be stored, at least 4 elements 1532 * 1533 * Set (static) TLV data for a virtual master volume using the AMP caps 1534 * obtained from the reference NID. 1535 * The volume range is recalculated as if the max volume is 0dB. 1536 */ 1537 void snd_hda_set_vmaster_tlv(struct hda_codec *codec, hda_nid_t nid, int dir, 1538 unsigned int *tlv) 1539 { 1540 u32 caps; 1541 int nums, step; 1542 1543 caps = query_amp_caps(codec, nid, dir); 1544 nums = (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT; 1545 step = (caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT; 1546 step = (step + 1) * 25; 1547 tlv[SNDRV_CTL_TLVO_TYPE] = SNDRV_CTL_TLVT_DB_SCALE; 1548 tlv[SNDRV_CTL_TLVO_LEN] = 2 * sizeof(unsigned int); 1549 tlv[SNDRV_CTL_TLVO_DB_SCALE_MIN] = -nums * step; 1550 tlv[SNDRV_CTL_TLVO_DB_SCALE_MUTE_AND_STEP] = step; 1551 } 1552 EXPORT_SYMBOL_GPL(snd_hda_set_vmaster_tlv); 1553 1554 /* find a mixer control element with the given name */ 1555 static struct snd_kcontrol * 1556 find_mixer_ctl(struct hda_codec *codec, const char *name, int dev, int idx) 1557 { 1558 struct snd_ctl_elem_id id; 1559 memset(&id, 0, sizeof(id)); 1560 id.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1561 id.device = dev; 1562 id.index = idx; 1563 if (snd_BUG_ON(strlen(name) >= sizeof(id.name))) 1564 return NULL; 1565 strcpy(id.name, name); 1566 return snd_ctl_find_id(codec->card, &id); 1567 } 1568 1569 /** 1570 * snd_hda_find_mixer_ctl - Find a mixer control element with the given name 1571 * @codec: HD-audio codec 1572 * @name: ctl id name string 1573 * 1574 * Get the control element with the given id string and IFACE_MIXER. 1575 */ 1576 struct snd_kcontrol *snd_hda_find_mixer_ctl(struct hda_codec *codec, 1577 const char *name) 1578 { 1579 return find_mixer_ctl(codec, name, 0, 0); 1580 } 1581 EXPORT_SYMBOL_GPL(snd_hda_find_mixer_ctl); 1582 1583 static int find_empty_mixer_ctl_idx(struct hda_codec *codec, const char *name, 1584 int start_idx) 1585 { 1586 int i, idx; 1587 /* 16 ctlrs should be large enough */ 1588 for (i = 0, idx = start_idx; i < 16; i++, idx++) { 1589 if (!find_mixer_ctl(codec, name, 0, idx)) 1590 return idx; 1591 } 1592 return -EBUSY; 1593 } 1594 1595 /** 1596 * snd_hda_ctl_add - Add a control element and assign to the codec 1597 * @codec: HD-audio codec 1598 * @nid: corresponding NID (optional) 1599 * @kctl: the control element to assign 1600 * 1601 * Add the given control element to an array inside the codec instance. 1602 * All control elements belonging to a codec are supposed to be added 1603 * by this function so that a proper clean-up works at the free or 1604 * reconfiguration time. 1605 * 1606 * If non-zero @nid is passed, the NID is assigned to the control element. 1607 * The assignment is shown in the codec proc file. 1608 * 1609 * snd_hda_ctl_add() checks the control subdev id field whether 1610 * #HDA_SUBDEV_NID_FLAG bit is set. If set (and @nid is zero), the lower 1611 * bits value is taken as the NID to assign. The #HDA_NID_ITEM_AMP bit 1612 * specifies if kctl->private_value is a HDA amplifier value. 1613 */ 1614 int snd_hda_ctl_add(struct hda_codec *codec, hda_nid_t nid, 1615 struct snd_kcontrol *kctl) 1616 { 1617 int err; 1618 unsigned short flags = 0; 1619 struct hda_nid_item *item; 1620 1621 if (kctl->id.subdevice & HDA_SUBDEV_AMP_FLAG) { 1622 flags |= HDA_NID_ITEM_AMP; 1623 if (nid == 0) 1624 nid = get_amp_nid_(kctl->private_value); 1625 } 1626 if ((kctl->id.subdevice & HDA_SUBDEV_NID_FLAG) != 0 && nid == 0) 1627 nid = kctl->id.subdevice & 0xffff; 1628 if (kctl->id.subdevice & (HDA_SUBDEV_NID_FLAG|HDA_SUBDEV_AMP_FLAG)) 1629 kctl->id.subdevice = 0; 1630 err = snd_ctl_add(codec->card, kctl); 1631 if (err < 0) 1632 return err; 1633 item = snd_array_new(&codec->mixers); 1634 if (!item) 1635 return -ENOMEM; 1636 item->kctl = kctl; 1637 item->nid = nid; 1638 item->flags = flags; 1639 return 0; 1640 } 1641 EXPORT_SYMBOL_GPL(snd_hda_ctl_add); 1642 1643 /** 1644 * snd_hda_add_nid - Assign a NID to a control element 1645 * @codec: HD-audio codec 1646 * @nid: corresponding NID (optional) 1647 * @kctl: the control element to assign 1648 * @index: index to kctl 1649 * 1650 * Add the given control element to an array inside the codec instance. 1651 * This function is used when #snd_hda_ctl_add cannot be used for 1:1 1652 * NID:KCTL mapping - for example "Capture Source" selector. 1653 */ 1654 int snd_hda_add_nid(struct hda_codec *codec, struct snd_kcontrol *kctl, 1655 unsigned int index, hda_nid_t nid) 1656 { 1657 struct hda_nid_item *item; 1658 1659 if (nid > 0) { 1660 item = snd_array_new(&codec->nids); 1661 if (!item) 1662 return -ENOMEM; 1663 item->kctl = kctl; 1664 item->index = index; 1665 item->nid = nid; 1666 return 0; 1667 } 1668 codec_err(codec, "no NID for mapping control %s:%d:%d\n", 1669 kctl->id.name, kctl->id.index, index); 1670 return -EINVAL; 1671 } 1672 EXPORT_SYMBOL_GPL(snd_hda_add_nid); 1673 1674 /** 1675 * snd_hda_ctls_clear - Clear all controls assigned to the given codec 1676 * @codec: HD-audio codec 1677 */ 1678 void snd_hda_ctls_clear(struct hda_codec *codec) 1679 { 1680 int i; 1681 struct hda_nid_item *items = codec->mixers.list; 1682 for (i = 0; i < codec->mixers.used; i++) 1683 snd_ctl_remove(codec->card, items[i].kctl); 1684 snd_array_free(&codec->mixers); 1685 snd_array_free(&codec->nids); 1686 } 1687 1688 /** 1689 * snd_hda_lock_devices - pseudo device locking 1690 * @bus: the BUS 1691 * 1692 * toggle card->shutdown to allow/disallow the device access (as a hack) 1693 */ 1694 int snd_hda_lock_devices(struct hda_bus *bus) 1695 { 1696 struct snd_card *card = bus->card; 1697 struct hda_codec *codec; 1698 1699 spin_lock(&card->files_lock); 1700 if (card->shutdown) 1701 goto err_unlock; 1702 card->shutdown = 1; 1703 if (!list_empty(&card->ctl_files)) 1704 goto err_clear; 1705 1706 list_for_each_codec(codec, bus) { 1707 struct hda_pcm *cpcm; 1708 list_for_each_entry(cpcm, &codec->pcm_list_head, list) { 1709 if (!cpcm->pcm) 1710 continue; 1711 if (cpcm->pcm->streams[0].substream_opened || 1712 cpcm->pcm->streams[1].substream_opened) 1713 goto err_clear; 1714 } 1715 } 1716 spin_unlock(&card->files_lock); 1717 return 0; 1718 1719 err_clear: 1720 card->shutdown = 0; 1721 err_unlock: 1722 spin_unlock(&card->files_lock); 1723 return -EINVAL; 1724 } 1725 EXPORT_SYMBOL_GPL(snd_hda_lock_devices); 1726 1727 /** 1728 * snd_hda_unlock_devices - pseudo device unlocking 1729 * @bus: the BUS 1730 */ 1731 void snd_hda_unlock_devices(struct hda_bus *bus) 1732 { 1733 struct snd_card *card = bus->card; 1734 1735 spin_lock(&card->files_lock); 1736 card->shutdown = 0; 1737 spin_unlock(&card->files_lock); 1738 } 1739 EXPORT_SYMBOL_GPL(snd_hda_unlock_devices); 1740 1741 /** 1742 * snd_hda_codec_reset - Clear all objects assigned to the codec 1743 * @codec: HD-audio codec 1744 * 1745 * This frees the all PCM and control elements assigned to the codec, and 1746 * clears the caches and restores the pin default configurations. 1747 * 1748 * When a device is being used, it returns -EBSY. If successfully freed, 1749 * returns zero. 1750 */ 1751 int snd_hda_codec_reset(struct hda_codec *codec) 1752 { 1753 struct hda_bus *bus = codec->bus; 1754 1755 if (snd_hda_lock_devices(bus) < 0) 1756 return -EBUSY; 1757 1758 /* OK, let it free */ 1759 snd_hdac_device_unregister(&codec->core); 1760 1761 /* allow device access again */ 1762 snd_hda_unlock_devices(bus); 1763 return 0; 1764 } 1765 1766 typedef int (*map_slave_func_t)(struct hda_codec *, void *, struct snd_kcontrol *); 1767 1768 /* apply the function to all matching slave ctls in the mixer list */ 1769 static int map_slaves(struct hda_codec *codec, const char * const *slaves, 1770 const char *suffix, map_slave_func_t func, void *data) 1771 { 1772 struct hda_nid_item *items; 1773 const char * const *s; 1774 int i, err; 1775 1776 items = codec->mixers.list; 1777 for (i = 0; i < codec->mixers.used; i++) { 1778 struct snd_kcontrol *sctl = items[i].kctl; 1779 if (!sctl || sctl->id.iface != SNDRV_CTL_ELEM_IFACE_MIXER) 1780 continue; 1781 for (s = slaves; *s; s++) { 1782 char tmpname[sizeof(sctl->id.name)]; 1783 const char *name = *s; 1784 if (suffix) { 1785 snprintf(tmpname, sizeof(tmpname), "%s %s", 1786 name, suffix); 1787 name = tmpname; 1788 } 1789 if (!strcmp(sctl->id.name, name)) { 1790 err = func(codec, data, sctl); 1791 if (err) 1792 return err; 1793 break; 1794 } 1795 } 1796 } 1797 return 0; 1798 } 1799 1800 static int check_slave_present(struct hda_codec *codec, 1801 void *data, struct snd_kcontrol *sctl) 1802 { 1803 return 1; 1804 } 1805 1806 /* call kctl->put with the given value(s) */ 1807 static int put_kctl_with_value(struct snd_kcontrol *kctl, int val) 1808 { 1809 struct snd_ctl_elem_value *ucontrol; 1810 ucontrol = kzalloc(sizeof(*ucontrol), GFP_KERNEL); 1811 if (!ucontrol) 1812 return -ENOMEM; 1813 ucontrol->value.integer.value[0] = val; 1814 ucontrol->value.integer.value[1] = val; 1815 kctl->put(kctl, ucontrol); 1816 kfree(ucontrol); 1817 return 0; 1818 } 1819 1820 struct slave_init_arg { 1821 struct hda_codec *codec; 1822 int step; 1823 }; 1824 1825 /* initialize the slave volume with 0dB via snd_ctl_apply_vmaster_slaves() */ 1826 static int init_slave_0dB(struct snd_kcontrol *slave, 1827 struct snd_kcontrol *kctl, 1828 void *_arg) 1829 { 1830 struct slave_init_arg *arg = _arg; 1831 int _tlv[4]; 1832 const int *tlv = NULL; 1833 int step; 1834 int val; 1835 1836 if (kctl->vd[0].access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) { 1837 if (kctl->tlv.c != snd_hda_mixer_amp_tlv) { 1838 codec_err(arg->codec, 1839 "Unexpected TLV callback for slave %s:%d\n", 1840 kctl->id.name, kctl->id.index); 1841 return 0; /* ignore */ 1842 } 1843 get_ctl_amp_tlv(kctl, _tlv); 1844 tlv = _tlv; 1845 } else if (kctl->vd[0].access & SNDRV_CTL_ELEM_ACCESS_TLV_READ) 1846 tlv = kctl->tlv.p; 1847 1848 if (!tlv || tlv[SNDRV_CTL_TLVO_TYPE] != SNDRV_CTL_TLVT_DB_SCALE) 1849 return 0; 1850 1851 step = tlv[SNDRV_CTL_TLVO_DB_SCALE_MUTE_AND_STEP]; 1852 step &= ~TLV_DB_SCALE_MUTE; 1853 if (!step) 1854 return 0; 1855 if (arg->step && arg->step != step) { 1856 codec_err(arg->codec, 1857 "Mismatching dB step for vmaster slave (%d!=%d)\n", 1858 arg->step, step); 1859 return 0; 1860 } 1861 1862 arg->step = step; 1863 val = -tlv[SNDRV_CTL_TLVO_DB_SCALE_MIN] / step; 1864 if (val > 0) { 1865 put_kctl_with_value(slave, val); 1866 return val; 1867 } 1868 1869 return 0; 1870 } 1871 1872 /* unmute the slave via snd_ctl_apply_vmaster_slaves() */ 1873 static int init_slave_unmute(struct snd_kcontrol *slave, 1874 struct snd_kcontrol *kctl, 1875 void *_arg) 1876 { 1877 return put_kctl_with_value(slave, 1); 1878 } 1879 1880 static int add_slave(struct hda_codec *codec, 1881 void *data, struct snd_kcontrol *slave) 1882 { 1883 return snd_ctl_add_slave(data, slave); 1884 } 1885 1886 /** 1887 * __snd_hda_add_vmaster - create a virtual master control and add slaves 1888 * @codec: HD-audio codec 1889 * @name: vmaster control name 1890 * @tlv: TLV data (optional) 1891 * @slaves: slave control names (optional) 1892 * @suffix: suffix string to each slave name (optional) 1893 * @init_slave_vol: initialize slaves to unmute/0dB 1894 * @ctl_ret: store the vmaster kcontrol in return 1895 * 1896 * Create a virtual master control with the given name. The TLV data 1897 * must be either NULL or a valid data. 1898 * 1899 * @slaves is a NULL-terminated array of strings, each of which is a 1900 * slave control name. All controls with these names are assigned to 1901 * the new virtual master control. 1902 * 1903 * This function returns zero if successful or a negative error code. 1904 */ 1905 int __snd_hda_add_vmaster(struct hda_codec *codec, char *name, 1906 unsigned int *tlv, const char * const *slaves, 1907 const char *suffix, bool init_slave_vol, 1908 struct snd_kcontrol **ctl_ret) 1909 { 1910 struct snd_kcontrol *kctl; 1911 int err; 1912 1913 if (ctl_ret) 1914 *ctl_ret = NULL; 1915 1916 err = map_slaves(codec, slaves, suffix, check_slave_present, NULL); 1917 if (err != 1) { 1918 codec_dbg(codec, "No slave found for %s\n", name); 1919 return 0; 1920 } 1921 kctl = snd_ctl_make_virtual_master(name, tlv); 1922 if (!kctl) 1923 return -ENOMEM; 1924 err = snd_hda_ctl_add(codec, 0, kctl); 1925 if (err < 0) 1926 return err; 1927 1928 err = map_slaves(codec, slaves, suffix, add_slave, kctl); 1929 if (err < 0) 1930 return err; 1931 1932 /* init with master mute & zero volume */ 1933 put_kctl_with_value(kctl, 0); 1934 if (init_slave_vol) { 1935 struct slave_init_arg arg = { 1936 .codec = codec, 1937 .step = 0, 1938 }; 1939 snd_ctl_apply_vmaster_slaves(kctl, 1940 tlv ? init_slave_0dB : init_slave_unmute, 1941 &arg); 1942 } 1943 1944 if (ctl_ret) 1945 *ctl_ret = kctl; 1946 return 0; 1947 } 1948 EXPORT_SYMBOL_GPL(__snd_hda_add_vmaster); 1949 1950 /* 1951 * mute-LED control using vmaster 1952 */ 1953 static int vmaster_mute_mode_info(struct snd_kcontrol *kcontrol, 1954 struct snd_ctl_elem_info *uinfo) 1955 { 1956 static const char * const texts[] = { 1957 "On", "Off", "Follow Master" 1958 }; 1959 1960 return snd_ctl_enum_info(uinfo, 1, 3, texts); 1961 } 1962 1963 static int vmaster_mute_mode_get(struct snd_kcontrol *kcontrol, 1964 struct snd_ctl_elem_value *ucontrol) 1965 { 1966 struct hda_vmaster_mute_hook *hook = snd_kcontrol_chip(kcontrol); 1967 ucontrol->value.enumerated.item[0] = hook->mute_mode; 1968 return 0; 1969 } 1970 1971 static int vmaster_mute_mode_put(struct snd_kcontrol *kcontrol, 1972 struct snd_ctl_elem_value *ucontrol) 1973 { 1974 struct hda_vmaster_mute_hook *hook = snd_kcontrol_chip(kcontrol); 1975 unsigned int old_mode = hook->mute_mode; 1976 1977 hook->mute_mode = ucontrol->value.enumerated.item[0]; 1978 if (hook->mute_mode > HDA_VMUTE_FOLLOW_MASTER) 1979 hook->mute_mode = HDA_VMUTE_FOLLOW_MASTER; 1980 if (old_mode == hook->mute_mode) 1981 return 0; 1982 snd_hda_sync_vmaster_hook(hook); 1983 return 1; 1984 } 1985 1986 static const struct snd_kcontrol_new vmaster_mute_mode = { 1987 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 1988 .name = "Mute-LED Mode", 1989 .info = vmaster_mute_mode_info, 1990 .get = vmaster_mute_mode_get, 1991 .put = vmaster_mute_mode_put, 1992 }; 1993 1994 /* meta hook to call each driver's vmaster hook */ 1995 static void vmaster_hook(void *private_data, int enabled) 1996 { 1997 struct hda_vmaster_mute_hook *hook = private_data; 1998 1999 if (hook->mute_mode != HDA_VMUTE_FOLLOW_MASTER) 2000 enabled = hook->mute_mode; 2001 hook->hook(hook->codec, enabled); 2002 } 2003 2004 /** 2005 * snd_hda_add_vmaster_hook - Add a vmaster hook for mute-LED 2006 * @codec: the HDA codec 2007 * @hook: the vmaster hook object 2008 * @expose_enum_ctl: flag to create an enum ctl 2009 * 2010 * Add a mute-LED hook with the given vmaster switch kctl. 2011 * When @expose_enum_ctl is set, "Mute-LED Mode" control is automatically 2012 * created and associated with the given hook. 2013 */ 2014 int snd_hda_add_vmaster_hook(struct hda_codec *codec, 2015 struct hda_vmaster_mute_hook *hook, 2016 bool expose_enum_ctl) 2017 { 2018 struct snd_kcontrol *kctl; 2019 2020 if (!hook->hook || !hook->sw_kctl) 2021 return 0; 2022 hook->codec = codec; 2023 hook->mute_mode = HDA_VMUTE_FOLLOW_MASTER; 2024 snd_ctl_add_vmaster_hook(hook->sw_kctl, vmaster_hook, hook); 2025 if (!expose_enum_ctl) 2026 return 0; 2027 kctl = snd_ctl_new1(&vmaster_mute_mode, hook); 2028 if (!kctl) 2029 return -ENOMEM; 2030 return snd_hda_ctl_add(codec, 0, kctl); 2031 } 2032 EXPORT_SYMBOL_GPL(snd_hda_add_vmaster_hook); 2033 2034 /** 2035 * snd_hda_sync_vmaster_hook - Sync vmaster hook 2036 * @hook: the vmaster hook 2037 * 2038 * Call the hook with the current value for synchronization. 2039 * Should be called in init callback. 2040 */ 2041 void snd_hda_sync_vmaster_hook(struct hda_vmaster_mute_hook *hook) 2042 { 2043 if (!hook->hook || !hook->codec) 2044 return; 2045 /* don't call vmaster hook in the destructor since it might have 2046 * been already destroyed 2047 */ 2048 if (hook->codec->bus->shutdown) 2049 return; 2050 snd_ctl_sync_vmaster_hook(hook->sw_kctl); 2051 } 2052 EXPORT_SYMBOL_GPL(snd_hda_sync_vmaster_hook); 2053 2054 2055 /** 2056 * snd_hda_mixer_amp_switch_info - Info callback for a standard AMP mixer switch 2057 * @kcontrol: referred ctl element 2058 * @uinfo: pointer to get/store the data 2059 * 2060 * The control element is supposed to have the private_value field 2061 * set up via HDA_COMPOSE_AMP_VAL*() or related macros. 2062 */ 2063 int snd_hda_mixer_amp_switch_info(struct snd_kcontrol *kcontrol, 2064 struct snd_ctl_elem_info *uinfo) 2065 { 2066 int chs = get_amp_channels(kcontrol); 2067 2068 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; 2069 uinfo->count = chs == 3 ? 2 : 1; 2070 uinfo->value.integer.min = 0; 2071 uinfo->value.integer.max = 1; 2072 return 0; 2073 } 2074 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_switch_info); 2075 2076 /** 2077 * snd_hda_mixer_amp_switch_get - Get callback for a standard AMP mixer switch 2078 * @kcontrol: ctl element 2079 * @ucontrol: pointer to get/store the data 2080 * 2081 * The control element is supposed to have the private_value field 2082 * set up via HDA_COMPOSE_AMP_VAL*() or related macros. 2083 */ 2084 int snd_hda_mixer_amp_switch_get(struct snd_kcontrol *kcontrol, 2085 struct snd_ctl_elem_value *ucontrol) 2086 { 2087 struct hda_codec *codec = snd_kcontrol_chip(kcontrol); 2088 hda_nid_t nid = get_amp_nid(kcontrol); 2089 int chs = get_amp_channels(kcontrol); 2090 int dir = get_amp_direction(kcontrol); 2091 int idx = get_amp_index(kcontrol); 2092 long *valp = ucontrol->value.integer.value; 2093 2094 if (chs & 1) 2095 *valp++ = (snd_hda_codec_amp_read(codec, nid, 0, dir, idx) & 2096 HDA_AMP_MUTE) ? 0 : 1; 2097 if (chs & 2) 2098 *valp = (snd_hda_codec_amp_read(codec, nid, 1, dir, idx) & 2099 HDA_AMP_MUTE) ? 0 : 1; 2100 return 0; 2101 } 2102 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_switch_get); 2103 2104 /** 2105 * snd_hda_mixer_amp_switch_put - Put callback for a standard AMP mixer switch 2106 * @kcontrol: ctl element 2107 * @ucontrol: pointer to get/store the data 2108 * 2109 * The control element is supposed to have the private_value field 2110 * set up via HDA_COMPOSE_AMP_VAL*() or related macros. 2111 */ 2112 int snd_hda_mixer_amp_switch_put(struct snd_kcontrol *kcontrol, 2113 struct snd_ctl_elem_value *ucontrol) 2114 { 2115 struct hda_codec *codec = snd_kcontrol_chip(kcontrol); 2116 hda_nid_t nid = get_amp_nid(kcontrol); 2117 int chs = get_amp_channels(kcontrol); 2118 int dir = get_amp_direction(kcontrol); 2119 int idx = get_amp_index(kcontrol); 2120 long *valp = ucontrol->value.integer.value; 2121 int change = 0; 2122 2123 if (chs & 1) { 2124 change = snd_hda_codec_amp_update(codec, nid, 0, dir, idx, 2125 HDA_AMP_MUTE, 2126 *valp ? 0 : HDA_AMP_MUTE); 2127 valp++; 2128 } 2129 if (chs & 2) 2130 change |= snd_hda_codec_amp_update(codec, nid, 1, dir, idx, 2131 HDA_AMP_MUTE, 2132 *valp ? 0 : HDA_AMP_MUTE); 2133 hda_call_check_power_status(codec, nid); 2134 return change; 2135 } 2136 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_switch_put); 2137 2138 /* 2139 * SPDIF out controls 2140 */ 2141 2142 static int snd_hda_spdif_mask_info(struct snd_kcontrol *kcontrol, 2143 struct snd_ctl_elem_info *uinfo) 2144 { 2145 uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958; 2146 uinfo->count = 1; 2147 return 0; 2148 } 2149 2150 static int snd_hda_spdif_cmask_get(struct snd_kcontrol *kcontrol, 2151 struct snd_ctl_elem_value *ucontrol) 2152 { 2153 ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL | 2154 IEC958_AES0_NONAUDIO | 2155 IEC958_AES0_CON_EMPHASIS_5015 | 2156 IEC958_AES0_CON_NOT_COPYRIGHT; 2157 ucontrol->value.iec958.status[1] = IEC958_AES1_CON_CATEGORY | 2158 IEC958_AES1_CON_ORIGINAL; 2159 return 0; 2160 } 2161 2162 static int snd_hda_spdif_pmask_get(struct snd_kcontrol *kcontrol, 2163 struct snd_ctl_elem_value *ucontrol) 2164 { 2165 ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL | 2166 IEC958_AES0_NONAUDIO | 2167 IEC958_AES0_PRO_EMPHASIS_5015; 2168 return 0; 2169 } 2170 2171 static int snd_hda_spdif_default_get(struct snd_kcontrol *kcontrol, 2172 struct snd_ctl_elem_value *ucontrol) 2173 { 2174 struct hda_codec *codec = snd_kcontrol_chip(kcontrol); 2175 int idx = kcontrol->private_value; 2176 struct hda_spdif_out *spdif; 2177 2178 if (WARN_ON(codec->spdif_out.used <= idx)) 2179 return -EINVAL; 2180 mutex_lock(&codec->spdif_mutex); 2181 spdif = snd_array_elem(&codec->spdif_out, idx); 2182 ucontrol->value.iec958.status[0] = spdif->status & 0xff; 2183 ucontrol->value.iec958.status[1] = (spdif->status >> 8) & 0xff; 2184 ucontrol->value.iec958.status[2] = (spdif->status >> 16) & 0xff; 2185 ucontrol->value.iec958.status[3] = (spdif->status >> 24) & 0xff; 2186 mutex_unlock(&codec->spdif_mutex); 2187 2188 return 0; 2189 } 2190 2191 /* convert from SPDIF status bits to HDA SPDIF bits 2192 * bit 0 (DigEn) is always set zero (to be filled later) 2193 */ 2194 static unsigned short convert_from_spdif_status(unsigned int sbits) 2195 { 2196 unsigned short val = 0; 2197 2198 if (sbits & IEC958_AES0_PROFESSIONAL) 2199 val |= AC_DIG1_PROFESSIONAL; 2200 if (sbits & IEC958_AES0_NONAUDIO) 2201 val |= AC_DIG1_NONAUDIO; 2202 if (sbits & IEC958_AES0_PROFESSIONAL) { 2203 if ((sbits & IEC958_AES0_PRO_EMPHASIS) == 2204 IEC958_AES0_PRO_EMPHASIS_5015) 2205 val |= AC_DIG1_EMPHASIS; 2206 } else { 2207 if ((sbits & IEC958_AES0_CON_EMPHASIS) == 2208 IEC958_AES0_CON_EMPHASIS_5015) 2209 val |= AC_DIG1_EMPHASIS; 2210 if (!(sbits & IEC958_AES0_CON_NOT_COPYRIGHT)) 2211 val |= AC_DIG1_COPYRIGHT; 2212 if (sbits & (IEC958_AES1_CON_ORIGINAL << 8)) 2213 val |= AC_DIG1_LEVEL; 2214 val |= sbits & (IEC958_AES1_CON_CATEGORY << 8); 2215 } 2216 return val; 2217 } 2218 2219 /* convert to SPDIF status bits from HDA SPDIF bits 2220 */ 2221 static unsigned int convert_to_spdif_status(unsigned short val) 2222 { 2223 unsigned int sbits = 0; 2224 2225 if (val & AC_DIG1_NONAUDIO) 2226 sbits |= IEC958_AES0_NONAUDIO; 2227 if (val & AC_DIG1_PROFESSIONAL) 2228 sbits |= IEC958_AES0_PROFESSIONAL; 2229 if (sbits & IEC958_AES0_PROFESSIONAL) { 2230 if (val & AC_DIG1_EMPHASIS) 2231 sbits |= IEC958_AES0_PRO_EMPHASIS_5015; 2232 } else { 2233 if (val & AC_DIG1_EMPHASIS) 2234 sbits |= IEC958_AES0_CON_EMPHASIS_5015; 2235 if (!(val & AC_DIG1_COPYRIGHT)) 2236 sbits |= IEC958_AES0_CON_NOT_COPYRIGHT; 2237 if (val & AC_DIG1_LEVEL) 2238 sbits |= (IEC958_AES1_CON_ORIGINAL << 8); 2239 sbits |= val & (0x7f << 8); 2240 } 2241 return sbits; 2242 } 2243 2244 /* set digital convert verbs both for the given NID and its slaves */ 2245 static void set_dig_out(struct hda_codec *codec, hda_nid_t nid, 2246 int mask, int val) 2247 { 2248 const hda_nid_t *d; 2249 2250 snd_hdac_regmap_update(&codec->core, nid, AC_VERB_SET_DIGI_CONVERT_1, 2251 mask, val); 2252 d = codec->slave_dig_outs; 2253 if (!d) 2254 return; 2255 for (; *d; d++) 2256 snd_hdac_regmap_update(&codec->core, *d, 2257 AC_VERB_SET_DIGI_CONVERT_1, mask, val); 2258 } 2259 2260 static inline void set_dig_out_convert(struct hda_codec *codec, hda_nid_t nid, 2261 int dig1, int dig2) 2262 { 2263 unsigned int mask = 0; 2264 unsigned int val = 0; 2265 2266 if (dig1 != -1) { 2267 mask |= 0xff; 2268 val = dig1; 2269 } 2270 if (dig2 != -1) { 2271 mask |= 0xff00; 2272 val |= dig2 << 8; 2273 } 2274 set_dig_out(codec, nid, mask, val); 2275 } 2276 2277 static int snd_hda_spdif_default_put(struct snd_kcontrol *kcontrol, 2278 struct snd_ctl_elem_value *ucontrol) 2279 { 2280 struct hda_codec *codec = snd_kcontrol_chip(kcontrol); 2281 int idx = kcontrol->private_value; 2282 struct hda_spdif_out *spdif; 2283 hda_nid_t nid; 2284 unsigned short val; 2285 int change; 2286 2287 if (WARN_ON(codec->spdif_out.used <= idx)) 2288 return -EINVAL; 2289 mutex_lock(&codec->spdif_mutex); 2290 spdif = snd_array_elem(&codec->spdif_out, idx); 2291 nid = spdif->nid; 2292 spdif->status = ucontrol->value.iec958.status[0] | 2293 ((unsigned int)ucontrol->value.iec958.status[1] << 8) | 2294 ((unsigned int)ucontrol->value.iec958.status[2] << 16) | 2295 ((unsigned int)ucontrol->value.iec958.status[3] << 24); 2296 val = convert_from_spdif_status(spdif->status); 2297 val |= spdif->ctls & 1; 2298 change = spdif->ctls != val; 2299 spdif->ctls = val; 2300 if (change && nid != (u16)-1) 2301 set_dig_out_convert(codec, nid, val & 0xff, (val >> 8) & 0xff); 2302 mutex_unlock(&codec->spdif_mutex); 2303 return change; 2304 } 2305 2306 #define snd_hda_spdif_out_switch_info snd_ctl_boolean_mono_info 2307 2308 static int snd_hda_spdif_out_switch_get(struct snd_kcontrol *kcontrol, 2309 struct snd_ctl_elem_value *ucontrol) 2310 { 2311 struct hda_codec *codec = snd_kcontrol_chip(kcontrol); 2312 int idx = kcontrol->private_value; 2313 struct hda_spdif_out *spdif; 2314 2315 if (WARN_ON(codec->spdif_out.used <= idx)) 2316 return -EINVAL; 2317 mutex_lock(&codec->spdif_mutex); 2318 spdif = snd_array_elem(&codec->spdif_out, idx); 2319 ucontrol->value.integer.value[0] = spdif->ctls & AC_DIG1_ENABLE; 2320 mutex_unlock(&codec->spdif_mutex); 2321 return 0; 2322 } 2323 2324 static inline void set_spdif_ctls(struct hda_codec *codec, hda_nid_t nid, 2325 int dig1, int dig2) 2326 { 2327 set_dig_out_convert(codec, nid, dig1, dig2); 2328 /* unmute amp switch (if any) */ 2329 if ((get_wcaps(codec, nid) & AC_WCAP_OUT_AMP) && 2330 (dig1 & AC_DIG1_ENABLE)) 2331 snd_hda_codec_amp_stereo(codec, nid, HDA_OUTPUT, 0, 2332 HDA_AMP_MUTE, 0); 2333 } 2334 2335 static int snd_hda_spdif_out_switch_put(struct snd_kcontrol *kcontrol, 2336 struct snd_ctl_elem_value *ucontrol) 2337 { 2338 struct hda_codec *codec = snd_kcontrol_chip(kcontrol); 2339 int idx = kcontrol->private_value; 2340 struct hda_spdif_out *spdif; 2341 hda_nid_t nid; 2342 unsigned short val; 2343 int change; 2344 2345 if (WARN_ON(codec->spdif_out.used <= idx)) 2346 return -EINVAL; 2347 mutex_lock(&codec->spdif_mutex); 2348 spdif = snd_array_elem(&codec->spdif_out, idx); 2349 nid = spdif->nid; 2350 val = spdif->ctls & ~AC_DIG1_ENABLE; 2351 if (ucontrol->value.integer.value[0]) 2352 val |= AC_DIG1_ENABLE; 2353 change = spdif->ctls != val; 2354 spdif->ctls = val; 2355 if (change && nid != (u16)-1) 2356 set_spdif_ctls(codec, nid, val & 0xff, -1); 2357 mutex_unlock(&codec->spdif_mutex); 2358 return change; 2359 } 2360 2361 static struct snd_kcontrol_new dig_mixes[] = { 2362 { 2363 .access = SNDRV_CTL_ELEM_ACCESS_READ, 2364 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 2365 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, CON_MASK), 2366 .info = snd_hda_spdif_mask_info, 2367 .get = snd_hda_spdif_cmask_get, 2368 }, 2369 { 2370 .access = SNDRV_CTL_ELEM_ACCESS_READ, 2371 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 2372 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, PRO_MASK), 2373 .info = snd_hda_spdif_mask_info, 2374 .get = snd_hda_spdif_pmask_get, 2375 }, 2376 { 2377 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 2378 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT), 2379 .info = snd_hda_spdif_mask_info, 2380 .get = snd_hda_spdif_default_get, 2381 .put = snd_hda_spdif_default_put, 2382 }, 2383 { 2384 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 2385 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, SWITCH), 2386 .info = snd_hda_spdif_out_switch_info, 2387 .get = snd_hda_spdif_out_switch_get, 2388 .put = snd_hda_spdif_out_switch_put, 2389 }, 2390 { } /* end */ 2391 }; 2392 2393 /** 2394 * snd_hda_create_dig_out_ctls - create Output SPDIF-related controls 2395 * @codec: the HDA codec 2396 * @associated_nid: NID that new ctls associated with 2397 * @cvt_nid: converter NID 2398 * @type: HDA_PCM_TYPE_* 2399 * Creates controls related with the digital output. 2400 * Called from each patch supporting the digital out. 2401 * 2402 * Returns 0 if successful, or a negative error code. 2403 */ 2404 int snd_hda_create_dig_out_ctls(struct hda_codec *codec, 2405 hda_nid_t associated_nid, 2406 hda_nid_t cvt_nid, 2407 int type) 2408 { 2409 int err; 2410 struct snd_kcontrol *kctl; 2411 struct snd_kcontrol_new *dig_mix; 2412 int idx = 0; 2413 int val = 0; 2414 const int spdif_index = 16; 2415 struct hda_spdif_out *spdif; 2416 struct hda_bus *bus = codec->bus; 2417 2418 if (bus->primary_dig_out_type == HDA_PCM_TYPE_HDMI && 2419 type == HDA_PCM_TYPE_SPDIF) { 2420 idx = spdif_index; 2421 } else if (bus->primary_dig_out_type == HDA_PCM_TYPE_SPDIF && 2422 type == HDA_PCM_TYPE_HDMI) { 2423 /* suppose a single SPDIF device */ 2424 for (dig_mix = dig_mixes; dig_mix->name; dig_mix++) { 2425 kctl = find_mixer_ctl(codec, dig_mix->name, 0, 0); 2426 if (!kctl) 2427 break; 2428 kctl->id.index = spdif_index; 2429 } 2430 bus->primary_dig_out_type = HDA_PCM_TYPE_HDMI; 2431 } 2432 if (!bus->primary_dig_out_type) 2433 bus->primary_dig_out_type = type; 2434 2435 idx = find_empty_mixer_ctl_idx(codec, "IEC958 Playback Switch", idx); 2436 if (idx < 0) { 2437 codec_err(codec, "too many IEC958 outputs\n"); 2438 return -EBUSY; 2439 } 2440 spdif = snd_array_new(&codec->spdif_out); 2441 if (!spdif) 2442 return -ENOMEM; 2443 for (dig_mix = dig_mixes; dig_mix->name; dig_mix++) { 2444 kctl = snd_ctl_new1(dig_mix, codec); 2445 if (!kctl) 2446 return -ENOMEM; 2447 kctl->id.index = idx; 2448 kctl->private_value = codec->spdif_out.used - 1; 2449 err = snd_hda_ctl_add(codec, associated_nid, kctl); 2450 if (err < 0) 2451 return err; 2452 } 2453 spdif->nid = cvt_nid; 2454 snd_hdac_regmap_read(&codec->core, cvt_nid, 2455 AC_VERB_GET_DIGI_CONVERT_1, &val); 2456 spdif->ctls = val; 2457 spdif->status = convert_to_spdif_status(spdif->ctls); 2458 return 0; 2459 } 2460 EXPORT_SYMBOL_GPL(snd_hda_create_dig_out_ctls); 2461 2462 /** 2463 * snd_hda_spdif_out_of_nid - get the hda_spdif_out entry from the given NID 2464 * @codec: the HDA codec 2465 * @nid: widget NID 2466 * 2467 * call within spdif_mutex lock 2468 */ 2469 struct hda_spdif_out *snd_hda_spdif_out_of_nid(struct hda_codec *codec, 2470 hda_nid_t nid) 2471 { 2472 struct hda_spdif_out *spdif; 2473 int i; 2474 2475 snd_array_for_each(&codec->spdif_out, i, spdif) { 2476 if (spdif->nid == nid) 2477 return spdif; 2478 } 2479 return NULL; 2480 } 2481 EXPORT_SYMBOL_GPL(snd_hda_spdif_out_of_nid); 2482 2483 /** 2484 * snd_hda_spdif_ctls_unassign - Unassign the given SPDIF ctl 2485 * @codec: the HDA codec 2486 * @idx: the SPDIF ctl index 2487 * 2488 * Unassign the widget from the given SPDIF control. 2489 */ 2490 void snd_hda_spdif_ctls_unassign(struct hda_codec *codec, int idx) 2491 { 2492 struct hda_spdif_out *spdif; 2493 2494 if (WARN_ON(codec->spdif_out.used <= idx)) 2495 return; 2496 mutex_lock(&codec->spdif_mutex); 2497 spdif = snd_array_elem(&codec->spdif_out, idx); 2498 spdif->nid = (u16)-1; 2499 mutex_unlock(&codec->spdif_mutex); 2500 } 2501 EXPORT_SYMBOL_GPL(snd_hda_spdif_ctls_unassign); 2502 2503 /** 2504 * snd_hda_spdif_ctls_assign - Assign the SPDIF controls to the given NID 2505 * @codec: the HDA codec 2506 * @idx: the SPDIF ctl idx 2507 * @nid: widget NID 2508 * 2509 * Assign the widget to the SPDIF control with the given index. 2510 */ 2511 void snd_hda_spdif_ctls_assign(struct hda_codec *codec, int idx, hda_nid_t nid) 2512 { 2513 struct hda_spdif_out *spdif; 2514 unsigned short val; 2515 2516 if (WARN_ON(codec->spdif_out.used <= idx)) 2517 return; 2518 mutex_lock(&codec->spdif_mutex); 2519 spdif = snd_array_elem(&codec->spdif_out, idx); 2520 if (spdif->nid != nid) { 2521 spdif->nid = nid; 2522 val = spdif->ctls; 2523 set_spdif_ctls(codec, nid, val & 0xff, (val >> 8) & 0xff); 2524 } 2525 mutex_unlock(&codec->spdif_mutex); 2526 } 2527 EXPORT_SYMBOL_GPL(snd_hda_spdif_ctls_assign); 2528 2529 /* 2530 * SPDIF sharing with analog output 2531 */ 2532 static int spdif_share_sw_get(struct snd_kcontrol *kcontrol, 2533 struct snd_ctl_elem_value *ucontrol) 2534 { 2535 struct hda_multi_out *mout = snd_kcontrol_chip(kcontrol); 2536 ucontrol->value.integer.value[0] = mout->share_spdif; 2537 return 0; 2538 } 2539 2540 static int spdif_share_sw_put(struct snd_kcontrol *kcontrol, 2541 struct snd_ctl_elem_value *ucontrol) 2542 { 2543 struct hda_multi_out *mout = snd_kcontrol_chip(kcontrol); 2544 mout->share_spdif = !!ucontrol->value.integer.value[0]; 2545 return 0; 2546 } 2547 2548 static const struct snd_kcontrol_new spdif_share_sw = { 2549 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 2550 .name = "IEC958 Default PCM Playback Switch", 2551 .info = snd_ctl_boolean_mono_info, 2552 .get = spdif_share_sw_get, 2553 .put = spdif_share_sw_put, 2554 }; 2555 2556 /** 2557 * snd_hda_create_spdif_share_sw - create Default PCM switch 2558 * @codec: the HDA codec 2559 * @mout: multi-out instance 2560 */ 2561 int snd_hda_create_spdif_share_sw(struct hda_codec *codec, 2562 struct hda_multi_out *mout) 2563 { 2564 struct snd_kcontrol *kctl; 2565 2566 if (!mout->dig_out_nid) 2567 return 0; 2568 2569 kctl = snd_ctl_new1(&spdif_share_sw, mout); 2570 if (!kctl) 2571 return -ENOMEM; 2572 /* ATTENTION: here mout is passed as private_data, instead of codec */ 2573 return snd_hda_ctl_add(codec, mout->dig_out_nid, kctl); 2574 } 2575 EXPORT_SYMBOL_GPL(snd_hda_create_spdif_share_sw); 2576 2577 /* 2578 * SPDIF input 2579 */ 2580 2581 #define snd_hda_spdif_in_switch_info snd_hda_spdif_out_switch_info 2582 2583 static int snd_hda_spdif_in_switch_get(struct snd_kcontrol *kcontrol, 2584 struct snd_ctl_elem_value *ucontrol) 2585 { 2586 struct hda_codec *codec = snd_kcontrol_chip(kcontrol); 2587 2588 ucontrol->value.integer.value[0] = codec->spdif_in_enable; 2589 return 0; 2590 } 2591 2592 static int snd_hda_spdif_in_switch_put(struct snd_kcontrol *kcontrol, 2593 struct snd_ctl_elem_value *ucontrol) 2594 { 2595 struct hda_codec *codec = snd_kcontrol_chip(kcontrol); 2596 hda_nid_t nid = kcontrol->private_value; 2597 unsigned int val = !!ucontrol->value.integer.value[0]; 2598 int change; 2599 2600 mutex_lock(&codec->spdif_mutex); 2601 change = codec->spdif_in_enable != val; 2602 if (change) { 2603 codec->spdif_in_enable = val; 2604 snd_hdac_regmap_write(&codec->core, nid, 2605 AC_VERB_SET_DIGI_CONVERT_1, val); 2606 } 2607 mutex_unlock(&codec->spdif_mutex); 2608 return change; 2609 } 2610 2611 static int snd_hda_spdif_in_status_get(struct snd_kcontrol *kcontrol, 2612 struct snd_ctl_elem_value *ucontrol) 2613 { 2614 struct hda_codec *codec = snd_kcontrol_chip(kcontrol); 2615 hda_nid_t nid = kcontrol->private_value; 2616 unsigned int val; 2617 unsigned int sbits; 2618 2619 snd_hdac_regmap_read(&codec->core, nid, 2620 AC_VERB_GET_DIGI_CONVERT_1, &val); 2621 sbits = convert_to_spdif_status(val); 2622 ucontrol->value.iec958.status[0] = sbits; 2623 ucontrol->value.iec958.status[1] = sbits >> 8; 2624 ucontrol->value.iec958.status[2] = sbits >> 16; 2625 ucontrol->value.iec958.status[3] = sbits >> 24; 2626 return 0; 2627 } 2628 2629 static struct snd_kcontrol_new dig_in_ctls[] = { 2630 { 2631 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 2632 .name = SNDRV_CTL_NAME_IEC958("", CAPTURE, SWITCH), 2633 .info = snd_hda_spdif_in_switch_info, 2634 .get = snd_hda_spdif_in_switch_get, 2635 .put = snd_hda_spdif_in_switch_put, 2636 }, 2637 { 2638 .access = SNDRV_CTL_ELEM_ACCESS_READ, 2639 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 2640 .name = SNDRV_CTL_NAME_IEC958("", CAPTURE, DEFAULT), 2641 .info = snd_hda_spdif_mask_info, 2642 .get = snd_hda_spdif_in_status_get, 2643 }, 2644 { } /* end */ 2645 }; 2646 2647 /** 2648 * snd_hda_create_spdif_in_ctls - create Input SPDIF-related controls 2649 * @codec: the HDA codec 2650 * @nid: audio in widget NID 2651 * 2652 * Creates controls related with the SPDIF input. 2653 * Called from each patch supporting the SPDIF in. 2654 * 2655 * Returns 0 if successful, or a negative error code. 2656 */ 2657 int snd_hda_create_spdif_in_ctls(struct hda_codec *codec, hda_nid_t nid) 2658 { 2659 int err; 2660 struct snd_kcontrol *kctl; 2661 struct snd_kcontrol_new *dig_mix; 2662 int idx; 2663 2664 idx = find_empty_mixer_ctl_idx(codec, "IEC958 Capture Switch", 0); 2665 if (idx < 0) { 2666 codec_err(codec, "too many IEC958 inputs\n"); 2667 return -EBUSY; 2668 } 2669 for (dig_mix = dig_in_ctls; dig_mix->name; dig_mix++) { 2670 kctl = snd_ctl_new1(dig_mix, codec); 2671 if (!kctl) 2672 return -ENOMEM; 2673 kctl->private_value = nid; 2674 err = snd_hda_ctl_add(codec, nid, kctl); 2675 if (err < 0) 2676 return err; 2677 } 2678 codec->spdif_in_enable = 2679 snd_hda_codec_read(codec, nid, 0, 2680 AC_VERB_GET_DIGI_CONVERT_1, 0) & 2681 AC_DIG1_ENABLE; 2682 return 0; 2683 } 2684 EXPORT_SYMBOL_GPL(snd_hda_create_spdif_in_ctls); 2685 2686 /** 2687 * snd_hda_codec_set_power_to_all - Set the power state to all widgets 2688 * @codec: the HDA codec 2689 * @fg: function group (not used now) 2690 * @power_state: the power state to set (AC_PWRST_*) 2691 * 2692 * Set the given power state to all widgets that have the power control. 2693 * If the codec has power_filter set, it evaluates the power state and 2694 * filter out if it's unchanged as D3. 2695 */ 2696 void snd_hda_codec_set_power_to_all(struct hda_codec *codec, hda_nid_t fg, 2697 unsigned int power_state) 2698 { 2699 hda_nid_t nid; 2700 2701 for_each_hda_codec_node(nid, codec) { 2702 unsigned int wcaps = get_wcaps(codec, nid); 2703 unsigned int state = power_state; 2704 if (!(wcaps & AC_WCAP_POWER)) 2705 continue; 2706 if (codec->power_filter) { 2707 state = codec->power_filter(codec, nid, power_state); 2708 if (state != power_state && power_state == AC_PWRST_D3) 2709 continue; 2710 } 2711 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_POWER_STATE, 2712 state); 2713 } 2714 } 2715 EXPORT_SYMBOL_GPL(snd_hda_codec_set_power_to_all); 2716 2717 /** 2718 * snd_hda_codec_eapd_power_filter - A power filter callback for EAPD 2719 * @codec: the HDA codec 2720 * @nid: widget NID 2721 * @power_state: power state to evalue 2722 * 2723 * Don't power down the widget if it controls eapd and EAPD_BTLENABLE is set. 2724 * This can be used a codec power_filter callback. 2725 */ 2726 unsigned int snd_hda_codec_eapd_power_filter(struct hda_codec *codec, 2727 hda_nid_t nid, 2728 unsigned int power_state) 2729 { 2730 if (nid == codec->core.afg || nid == codec->core.mfg) 2731 return power_state; 2732 if (power_state == AC_PWRST_D3 && 2733 get_wcaps_type(get_wcaps(codec, nid)) == AC_WID_PIN && 2734 (snd_hda_query_pin_caps(codec, nid) & AC_PINCAP_EAPD)) { 2735 int eapd = snd_hda_codec_read(codec, nid, 0, 2736 AC_VERB_GET_EAPD_BTLENABLE, 0); 2737 if (eapd & 0x02) 2738 return AC_PWRST_D0; 2739 } 2740 return power_state; 2741 } 2742 EXPORT_SYMBOL_GPL(snd_hda_codec_eapd_power_filter); 2743 2744 /* 2745 * set power state of the codec, and return the power state 2746 */ 2747 static unsigned int hda_set_power_state(struct hda_codec *codec, 2748 unsigned int power_state) 2749 { 2750 hda_nid_t fg = codec->core.afg ? codec->core.afg : codec->core.mfg; 2751 int count; 2752 unsigned int state; 2753 int flags = 0; 2754 2755 /* this delay seems necessary to avoid click noise at power-down */ 2756 if (power_state == AC_PWRST_D3) { 2757 if (codec->depop_delay < 0) 2758 msleep(codec_has_epss(codec) ? 10 : 100); 2759 else if (codec->depop_delay > 0) 2760 msleep(codec->depop_delay); 2761 flags = HDA_RW_NO_RESPONSE_FALLBACK; 2762 } 2763 2764 /* repeat power states setting at most 10 times*/ 2765 for (count = 0; count < 10; count++) { 2766 if (codec->patch_ops.set_power_state) 2767 codec->patch_ops.set_power_state(codec, fg, 2768 power_state); 2769 else { 2770 state = power_state; 2771 if (codec->power_filter) 2772 state = codec->power_filter(codec, fg, state); 2773 if (state == power_state || power_state != AC_PWRST_D3) 2774 snd_hda_codec_read(codec, fg, flags, 2775 AC_VERB_SET_POWER_STATE, 2776 state); 2777 snd_hda_codec_set_power_to_all(codec, fg, power_state); 2778 } 2779 state = snd_hda_sync_power_state(codec, fg, power_state); 2780 if (!(state & AC_PWRST_ERROR)) 2781 break; 2782 } 2783 2784 return state; 2785 } 2786 2787 /* sync power states of all widgets; 2788 * this is called at the end of codec parsing 2789 */ 2790 static void sync_power_up_states(struct hda_codec *codec) 2791 { 2792 hda_nid_t nid; 2793 2794 /* don't care if no filter is used */ 2795 if (!codec->power_filter) 2796 return; 2797 2798 for_each_hda_codec_node(nid, codec) { 2799 unsigned int wcaps = get_wcaps(codec, nid); 2800 unsigned int target; 2801 if (!(wcaps & AC_WCAP_POWER)) 2802 continue; 2803 target = codec->power_filter(codec, nid, AC_PWRST_D0); 2804 if (target == AC_PWRST_D0) 2805 continue; 2806 if (!snd_hda_check_power_state(codec, nid, target)) 2807 snd_hda_codec_write(codec, nid, 0, 2808 AC_VERB_SET_POWER_STATE, target); 2809 } 2810 } 2811 2812 #ifdef CONFIG_SND_HDA_RECONFIG 2813 /* execute additional init verbs */ 2814 static void hda_exec_init_verbs(struct hda_codec *codec) 2815 { 2816 if (codec->init_verbs.list) 2817 snd_hda_sequence_write(codec, codec->init_verbs.list); 2818 } 2819 #else 2820 static inline void hda_exec_init_verbs(struct hda_codec *codec) {} 2821 #endif 2822 2823 #ifdef CONFIG_PM 2824 /* update the power on/off account with the current jiffies */ 2825 static void update_power_acct(struct hda_codec *codec, bool on) 2826 { 2827 unsigned long delta = jiffies - codec->power_jiffies; 2828 2829 if (on) 2830 codec->power_on_acct += delta; 2831 else 2832 codec->power_off_acct += delta; 2833 codec->power_jiffies += delta; 2834 } 2835 2836 void snd_hda_update_power_acct(struct hda_codec *codec) 2837 { 2838 update_power_acct(codec, hda_codec_is_power_on(codec)); 2839 } 2840 2841 /* 2842 * call suspend and power-down; used both from PM and power-save 2843 * this function returns the power state in the end 2844 */ 2845 static unsigned int hda_call_codec_suspend(struct hda_codec *codec) 2846 { 2847 unsigned int state; 2848 2849 atomic_inc(&codec->core.in_pm); 2850 2851 if (codec->patch_ops.suspend) 2852 codec->patch_ops.suspend(codec); 2853 hda_cleanup_all_streams(codec); 2854 state = hda_set_power_state(codec, AC_PWRST_D3); 2855 update_power_acct(codec, true); 2856 atomic_dec(&codec->core.in_pm); 2857 return state; 2858 } 2859 2860 /* 2861 * kick up codec; used both from PM and power-save 2862 */ 2863 static void hda_call_codec_resume(struct hda_codec *codec) 2864 { 2865 atomic_inc(&codec->core.in_pm); 2866 2867 if (codec->core.regmap) 2868 regcache_mark_dirty(codec->core.regmap); 2869 2870 codec->power_jiffies = jiffies; 2871 2872 hda_set_power_state(codec, AC_PWRST_D0); 2873 restore_shutup_pins(codec); 2874 hda_exec_init_verbs(codec); 2875 snd_hda_jack_set_dirty_all(codec); 2876 if (codec->patch_ops.resume) 2877 codec->patch_ops.resume(codec); 2878 else { 2879 if (codec->patch_ops.init) 2880 codec->patch_ops.init(codec); 2881 if (codec->core.regmap) 2882 regcache_sync(codec->core.regmap); 2883 } 2884 2885 if (codec->jackpoll_interval) 2886 hda_jackpoll_work(&codec->jackpoll_work.work); 2887 else 2888 snd_hda_jack_report_sync(codec); 2889 atomic_dec(&codec->core.in_pm); 2890 } 2891 2892 static int hda_codec_runtime_suspend(struct device *dev) 2893 { 2894 struct hda_codec *codec = dev_to_hda_codec(dev); 2895 struct hda_pcm *pcm; 2896 unsigned int state; 2897 2898 cancel_delayed_work_sync(&codec->jackpoll_work); 2899 list_for_each_entry(pcm, &codec->pcm_list_head, list) 2900 snd_pcm_suspend_all(pcm->pcm); 2901 state = hda_call_codec_suspend(codec); 2902 if (codec->link_down_at_suspend || 2903 (codec_has_clkstop(codec) && codec_has_epss(codec) && 2904 (state & AC_PWRST_CLK_STOP_OK))) 2905 snd_hdac_codec_link_down(&codec->core); 2906 snd_hdac_link_power(&codec->core, false); 2907 return 0; 2908 } 2909 2910 static int hda_codec_runtime_resume(struct device *dev) 2911 { 2912 struct hda_codec *codec = dev_to_hda_codec(dev); 2913 2914 snd_hdac_link_power(&codec->core, true); 2915 snd_hdac_codec_link_up(&codec->core); 2916 hda_call_codec_resume(codec); 2917 pm_runtime_mark_last_busy(dev); 2918 return 0; 2919 } 2920 #endif /* CONFIG_PM */ 2921 2922 /* referred in hda_bind.c */ 2923 const struct dev_pm_ops hda_codec_driver_pm = { 2924 SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, 2925 pm_runtime_force_resume) 2926 SET_RUNTIME_PM_OPS(hda_codec_runtime_suspend, hda_codec_runtime_resume, 2927 NULL) 2928 }; 2929 2930 /* 2931 * add standard channel maps if not specified 2932 */ 2933 static int add_std_chmaps(struct hda_codec *codec) 2934 { 2935 struct hda_pcm *pcm; 2936 int str, err; 2937 2938 list_for_each_entry(pcm, &codec->pcm_list_head, list) { 2939 for (str = 0; str < 2; str++) { 2940 struct hda_pcm_stream *hinfo = &pcm->stream[str]; 2941 struct snd_pcm_chmap *chmap; 2942 const struct snd_pcm_chmap_elem *elem; 2943 2944 if (!pcm->pcm || pcm->own_chmap || !hinfo->substreams) 2945 continue; 2946 elem = hinfo->chmap ? hinfo->chmap : snd_pcm_std_chmaps; 2947 err = snd_pcm_add_chmap_ctls(pcm->pcm, str, elem, 2948 hinfo->channels_max, 2949 0, &chmap); 2950 if (err < 0) 2951 return err; 2952 chmap->channel_mask = SND_PCM_CHMAP_MASK_2468; 2953 } 2954 } 2955 return 0; 2956 } 2957 2958 /* default channel maps for 2.1 speakers; 2959 * since HD-audio supports only stereo, odd number channels are omitted 2960 */ 2961 const struct snd_pcm_chmap_elem snd_pcm_2_1_chmaps[] = { 2962 { .channels = 2, 2963 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR } }, 2964 { .channels = 4, 2965 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, 2966 SNDRV_CHMAP_LFE, SNDRV_CHMAP_LFE } }, 2967 { } 2968 }; 2969 EXPORT_SYMBOL_GPL(snd_pcm_2_1_chmaps); 2970 2971 int snd_hda_codec_build_controls(struct hda_codec *codec) 2972 { 2973 int err = 0; 2974 hda_exec_init_verbs(codec); 2975 /* continue to initialize... */ 2976 if (codec->patch_ops.init) 2977 err = codec->patch_ops.init(codec); 2978 if (!err && codec->patch_ops.build_controls) 2979 err = codec->patch_ops.build_controls(codec); 2980 if (err < 0) 2981 return err; 2982 2983 /* we create chmaps here instead of build_pcms */ 2984 err = add_std_chmaps(codec); 2985 if (err < 0) 2986 return err; 2987 2988 if (codec->jackpoll_interval) 2989 hda_jackpoll_work(&codec->jackpoll_work.work); 2990 else 2991 snd_hda_jack_report_sync(codec); /* call at the last init point */ 2992 sync_power_up_states(codec); 2993 return 0; 2994 } 2995 2996 /* 2997 * PCM stuff 2998 */ 2999 static int hda_pcm_default_open_close(struct hda_pcm_stream *hinfo, 3000 struct hda_codec *codec, 3001 struct snd_pcm_substream *substream) 3002 { 3003 return 0; 3004 } 3005 3006 static int hda_pcm_default_prepare(struct hda_pcm_stream *hinfo, 3007 struct hda_codec *codec, 3008 unsigned int stream_tag, 3009 unsigned int format, 3010 struct snd_pcm_substream *substream) 3011 { 3012 snd_hda_codec_setup_stream(codec, hinfo->nid, stream_tag, 0, format); 3013 return 0; 3014 } 3015 3016 static int hda_pcm_default_cleanup(struct hda_pcm_stream *hinfo, 3017 struct hda_codec *codec, 3018 struct snd_pcm_substream *substream) 3019 { 3020 snd_hda_codec_cleanup_stream(codec, hinfo->nid); 3021 return 0; 3022 } 3023 3024 static int set_pcm_default_values(struct hda_codec *codec, 3025 struct hda_pcm_stream *info) 3026 { 3027 int err; 3028 3029 /* query support PCM information from the given NID */ 3030 if (info->nid && (!info->rates || !info->formats)) { 3031 err = snd_hda_query_supported_pcm(codec, info->nid, 3032 info->rates ? NULL : &info->rates, 3033 info->formats ? NULL : &info->formats, 3034 info->maxbps ? NULL : &info->maxbps); 3035 if (err < 0) 3036 return err; 3037 } 3038 if (info->ops.open == NULL) 3039 info->ops.open = hda_pcm_default_open_close; 3040 if (info->ops.close == NULL) 3041 info->ops.close = hda_pcm_default_open_close; 3042 if (info->ops.prepare == NULL) { 3043 if (snd_BUG_ON(!info->nid)) 3044 return -EINVAL; 3045 info->ops.prepare = hda_pcm_default_prepare; 3046 } 3047 if (info->ops.cleanup == NULL) { 3048 if (snd_BUG_ON(!info->nid)) 3049 return -EINVAL; 3050 info->ops.cleanup = hda_pcm_default_cleanup; 3051 } 3052 return 0; 3053 } 3054 3055 /* 3056 * codec prepare/cleanup entries 3057 */ 3058 /** 3059 * snd_hda_codec_prepare - Prepare a stream 3060 * @codec: the HDA codec 3061 * @hinfo: PCM information 3062 * @stream: stream tag to assign 3063 * @format: format id to assign 3064 * @substream: PCM substream to assign 3065 * 3066 * Calls the prepare callback set by the codec with the given arguments. 3067 * Clean up the inactive streams when successful. 3068 */ 3069 int snd_hda_codec_prepare(struct hda_codec *codec, 3070 struct hda_pcm_stream *hinfo, 3071 unsigned int stream, 3072 unsigned int format, 3073 struct snd_pcm_substream *substream) 3074 { 3075 int ret; 3076 mutex_lock(&codec->bus->prepare_mutex); 3077 if (hinfo->ops.prepare) 3078 ret = hinfo->ops.prepare(hinfo, codec, stream, format, 3079 substream); 3080 else 3081 ret = -ENODEV; 3082 if (ret >= 0) 3083 purify_inactive_streams(codec); 3084 mutex_unlock(&codec->bus->prepare_mutex); 3085 return ret; 3086 } 3087 EXPORT_SYMBOL_GPL(snd_hda_codec_prepare); 3088 3089 /** 3090 * snd_hda_codec_cleanup - Prepare a stream 3091 * @codec: the HDA codec 3092 * @hinfo: PCM information 3093 * @substream: PCM substream 3094 * 3095 * Calls the cleanup callback set by the codec with the given arguments. 3096 */ 3097 void snd_hda_codec_cleanup(struct hda_codec *codec, 3098 struct hda_pcm_stream *hinfo, 3099 struct snd_pcm_substream *substream) 3100 { 3101 mutex_lock(&codec->bus->prepare_mutex); 3102 if (hinfo->ops.cleanup) 3103 hinfo->ops.cleanup(hinfo, codec, substream); 3104 mutex_unlock(&codec->bus->prepare_mutex); 3105 } 3106 EXPORT_SYMBOL_GPL(snd_hda_codec_cleanup); 3107 3108 /* global */ 3109 const char *snd_hda_pcm_type_name[HDA_PCM_NTYPES] = { 3110 "Audio", "SPDIF", "HDMI", "Modem" 3111 }; 3112 3113 /* 3114 * get the empty PCM device number to assign 3115 */ 3116 static int get_empty_pcm_device(struct hda_bus *bus, unsigned int type) 3117 { 3118 /* audio device indices; not linear to keep compatibility */ 3119 /* assigned to static slots up to dev#10; if more needed, assign 3120 * the later slot dynamically (when CONFIG_SND_DYNAMIC_MINORS=y) 3121 */ 3122 static int audio_idx[HDA_PCM_NTYPES][5] = { 3123 [HDA_PCM_TYPE_AUDIO] = { 0, 2, 4, 5, -1 }, 3124 [HDA_PCM_TYPE_SPDIF] = { 1, -1 }, 3125 [HDA_PCM_TYPE_HDMI] = { 3, 7, 8, 9, -1 }, 3126 [HDA_PCM_TYPE_MODEM] = { 6, -1 }, 3127 }; 3128 int i; 3129 3130 if (type >= HDA_PCM_NTYPES) { 3131 dev_err(bus->card->dev, "Invalid PCM type %d\n", type); 3132 return -EINVAL; 3133 } 3134 3135 for (i = 0; audio_idx[type][i] >= 0; i++) { 3136 #ifndef CONFIG_SND_DYNAMIC_MINORS 3137 if (audio_idx[type][i] >= 8) 3138 break; 3139 #endif 3140 if (!test_and_set_bit(audio_idx[type][i], bus->pcm_dev_bits)) 3141 return audio_idx[type][i]; 3142 } 3143 3144 #ifdef CONFIG_SND_DYNAMIC_MINORS 3145 /* non-fixed slots starting from 10 */ 3146 for (i = 10; i < 32; i++) { 3147 if (!test_and_set_bit(i, bus->pcm_dev_bits)) 3148 return i; 3149 } 3150 #endif 3151 3152 dev_warn(bus->card->dev, "Too many %s devices\n", 3153 snd_hda_pcm_type_name[type]); 3154 #ifndef CONFIG_SND_DYNAMIC_MINORS 3155 dev_warn(bus->card->dev, 3156 "Consider building the kernel with CONFIG_SND_DYNAMIC_MINORS=y\n"); 3157 #endif 3158 return -EAGAIN; 3159 } 3160 3161 /* call build_pcms ops of the given codec and set up the default parameters */ 3162 int snd_hda_codec_parse_pcms(struct hda_codec *codec) 3163 { 3164 struct hda_pcm *cpcm; 3165 int err; 3166 3167 if (!list_empty(&codec->pcm_list_head)) 3168 return 0; /* already parsed */ 3169 3170 if (!codec->patch_ops.build_pcms) 3171 return 0; 3172 3173 err = codec->patch_ops.build_pcms(codec); 3174 if (err < 0) { 3175 codec_err(codec, "cannot build PCMs for #%d (error %d)\n", 3176 codec->core.addr, err); 3177 return err; 3178 } 3179 3180 list_for_each_entry(cpcm, &codec->pcm_list_head, list) { 3181 int stream; 3182 3183 for (stream = 0; stream < 2; stream++) { 3184 struct hda_pcm_stream *info = &cpcm->stream[stream]; 3185 3186 if (!info->substreams) 3187 continue; 3188 err = set_pcm_default_values(codec, info); 3189 if (err < 0) { 3190 codec_warn(codec, 3191 "fail to setup default for PCM %s\n", 3192 cpcm->name); 3193 return err; 3194 } 3195 } 3196 } 3197 3198 return 0; 3199 } 3200 3201 /* assign all PCMs of the given codec */ 3202 int snd_hda_codec_build_pcms(struct hda_codec *codec) 3203 { 3204 struct hda_bus *bus = codec->bus; 3205 struct hda_pcm *cpcm; 3206 int dev, err; 3207 3208 err = snd_hda_codec_parse_pcms(codec); 3209 if (err < 0) 3210 return err; 3211 3212 /* attach a new PCM streams */ 3213 list_for_each_entry(cpcm, &codec->pcm_list_head, list) { 3214 if (cpcm->pcm) 3215 continue; /* already attached */ 3216 if (!cpcm->stream[0].substreams && !cpcm->stream[1].substreams) 3217 continue; /* no substreams assigned */ 3218 3219 dev = get_empty_pcm_device(bus, cpcm->pcm_type); 3220 if (dev < 0) { 3221 cpcm->device = SNDRV_PCM_INVALID_DEVICE; 3222 continue; /* no fatal error */ 3223 } 3224 cpcm->device = dev; 3225 err = snd_hda_attach_pcm_stream(bus, codec, cpcm); 3226 if (err < 0) { 3227 codec_err(codec, 3228 "cannot attach PCM stream %d for codec #%d\n", 3229 dev, codec->core.addr); 3230 continue; /* no fatal error */ 3231 } 3232 } 3233 3234 return 0; 3235 } 3236 3237 /** 3238 * snd_hda_add_new_ctls - create controls from the array 3239 * @codec: the HDA codec 3240 * @knew: the array of struct snd_kcontrol_new 3241 * 3242 * This helper function creates and add new controls in the given array. 3243 * The array must be terminated with an empty entry as terminator. 3244 * 3245 * Returns 0 if successful, or a negative error code. 3246 */ 3247 int snd_hda_add_new_ctls(struct hda_codec *codec, 3248 const struct snd_kcontrol_new *knew) 3249 { 3250 int err; 3251 3252 for (; knew->name; knew++) { 3253 struct snd_kcontrol *kctl; 3254 int addr = 0, idx = 0; 3255 if (knew->iface == -1) /* skip this codec private value */ 3256 continue; 3257 for (;;) { 3258 kctl = snd_ctl_new1(knew, codec); 3259 if (!kctl) 3260 return -ENOMEM; 3261 if (addr > 0) 3262 kctl->id.device = addr; 3263 if (idx > 0) 3264 kctl->id.index = idx; 3265 err = snd_hda_ctl_add(codec, 0, kctl); 3266 if (!err) 3267 break; 3268 /* try first with another device index corresponding to 3269 * the codec addr; if it still fails (or it's the 3270 * primary codec), then try another control index 3271 */ 3272 if (!addr && codec->core.addr) 3273 addr = codec->core.addr; 3274 else if (!idx && !knew->index) { 3275 idx = find_empty_mixer_ctl_idx(codec, 3276 knew->name, 0); 3277 if (idx <= 0) 3278 return err; 3279 } else 3280 return err; 3281 } 3282 } 3283 return 0; 3284 } 3285 EXPORT_SYMBOL_GPL(snd_hda_add_new_ctls); 3286 3287 #ifdef CONFIG_PM 3288 static void codec_set_power_save(struct hda_codec *codec, int delay) 3289 { 3290 struct device *dev = hda_codec_dev(codec); 3291 3292 if (delay == 0 && codec->auto_runtime_pm) 3293 delay = 3000; 3294 3295 if (delay > 0) { 3296 pm_runtime_set_autosuspend_delay(dev, delay); 3297 pm_runtime_use_autosuspend(dev); 3298 pm_runtime_allow(dev); 3299 if (!pm_runtime_suspended(dev)) 3300 pm_runtime_mark_last_busy(dev); 3301 } else { 3302 pm_runtime_dont_use_autosuspend(dev); 3303 pm_runtime_forbid(dev); 3304 } 3305 } 3306 3307 /** 3308 * snd_hda_set_power_save - reprogram autosuspend for the given delay 3309 * @bus: HD-audio bus 3310 * @delay: autosuspend delay in msec, 0 = off 3311 * 3312 * Synchronize the runtime PM autosuspend state from the power_save option. 3313 */ 3314 void snd_hda_set_power_save(struct hda_bus *bus, int delay) 3315 { 3316 struct hda_codec *c; 3317 3318 list_for_each_codec(c, bus) 3319 codec_set_power_save(c, delay); 3320 } 3321 EXPORT_SYMBOL_GPL(snd_hda_set_power_save); 3322 3323 /** 3324 * snd_hda_check_amp_list_power - Check the amp list and update the power 3325 * @codec: HD-audio codec 3326 * @check: the object containing an AMP list and the status 3327 * @nid: NID to check / update 3328 * 3329 * Check whether the given NID is in the amp list. If it's in the list, 3330 * check the current AMP status, and update the the power-status according 3331 * to the mute status. 3332 * 3333 * This function is supposed to be set or called from the check_power_status 3334 * patch ops. 3335 */ 3336 int snd_hda_check_amp_list_power(struct hda_codec *codec, 3337 struct hda_loopback_check *check, 3338 hda_nid_t nid) 3339 { 3340 const struct hda_amp_list *p; 3341 int ch, v; 3342 3343 if (!check->amplist) 3344 return 0; 3345 for (p = check->amplist; p->nid; p++) { 3346 if (p->nid == nid) 3347 break; 3348 } 3349 if (!p->nid) 3350 return 0; /* nothing changed */ 3351 3352 for (p = check->amplist; p->nid; p++) { 3353 for (ch = 0; ch < 2; ch++) { 3354 v = snd_hda_codec_amp_read(codec, p->nid, ch, p->dir, 3355 p->idx); 3356 if (!(v & HDA_AMP_MUTE) && v > 0) { 3357 if (!check->power_on) { 3358 check->power_on = 1; 3359 snd_hda_power_up_pm(codec); 3360 } 3361 return 1; 3362 } 3363 } 3364 } 3365 if (check->power_on) { 3366 check->power_on = 0; 3367 snd_hda_power_down_pm(codec); 3368 } 3369 return 0; 3370 } 3371 EXPORT_SYMBOL_GPL(snd_hda_check_amp_list_power); 3372 #endif 3373 3374 /* 3375 * input MUX helper 3376 */ 3377 3378 /** 3379 * snd_hda_input_mux_info_info - Info callback helper for the input-mux enum 3380 * @imux: imux helper object 3381 * @uinfo: pointer to get/store the data 3382 */ 3383 int snd_hda_input_mux_info(const struct hda_input_mux *imux, 3384 struct snd_ctl_elem_info *uinfo) 3385 { 3386 unsigned int index; 3387 3388 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; 3389 uinfo->count = 1; 3390 uinfo->value.enumerated.items = imux->num_items; 3391 if (!imux->num_items) 3392 return 0; 3393 index = uinfo->value.enumerated.item; 3394 if (index >= imux->num_items) 3395 index = imux->num_items - 1; 3396 strcpy(uinfo->value.enumerated.name, imux->items[index].label); 3397 return 0; 3398 } 3399 EXPORT_SYMBOL_GPL(snd_hda_input_mux_info); 3400 3401 /** 3402 * snd_hda_input_mux_info_put - Put callback helper for the input-mux enum 3403 * @codec: the HDA codec 3404 * @imux: imux helper object 3405 * @ucontrol: pointer to get/store the data 3406 * @nid: input mux NID 3407 * @cur_val: pointer to get/store the current imux value 3408 */ 3409 int snd_hda_input_mux_put(struct hda_codec *codec, 3410 const struct hda_input_mux *imux, 3411 struct snd_ctl_elem_value *ucontrol, 3412 hda_nid_t nid, 3413 unsigned int *cur_val) 3414 { 3415 unsigned int idx; 3416 3417 if (!imux->num_items) 3418 return 0; 3419 idx = ucontrol->value.enumerated.item[0]; 3420 if (idx >= imux->num_items) 3421 idx = imux->num_items - 1; 3422 if (*cur_val == idx) 3423 return 0; 3424 snd_hda_codec_write_cache(codec, nid, 0, AC_VERB_SET_CONNECT_SEL, 3425 imux->items[idx].index); 3426 *cur_val = idx; 3427 return 1; 3428 } 3429 EXPORT_SYMBOL_GPL(snd_hda_input_mux_put); 3430 3431 3432 /** 3433 * snd_hda_enum_helper_info - Helper for simple enum ctls 3434 * @kcontrol: ctl element 3435 * @uinfo: pointer to get/store the data 3436 * @num_items: number of enum items 3437 * @texts: enum item string array 3438 * 3439 * process kcontrol info callback of a simple string enum array 3440 * when @num_items is 0 or @texts is NULL, assume a boolean enum array 3441 */ 3442 int snd_hda_enum_helper_info(struct snd_kcontrol *kcontrol, 3443 struct snd_ctl_elem_info *uinfo, 3444 int num_items, const char * const *texts) 3445 { 3446 static const char * const texts_default[] = { 3447 "Disabled", "Enabled" 3448 }; 3449 3450 if (!texts || !num_items) { 3451 num_items = 2; 3452 texts = texts_default; 3453 } 3454 3455 return snd_ctl_enum_info(uinfo, 1, num_items, texts); 3456 } 3457 EXPORT_SYMBOL_GPL(snd_hda_enum_helper_info); 3458 3459 /* 3460 * Multi-channel / digital-out PCM helper functions 3461 */ 3462 3463 /* setup SPDIF output stream */ 3464 static void setup_dig_out_stream(struct hda_codec *codec, hda_nid_t nid, 3465 unsigned int stream_tag, unsigned int format) 3466 { 3467 struct hda_spdif_out *spdif; 3468 unsigned int curr_fmt; 3469 bool reset; 3470 3471 spdif = snd_hda_spdif_out_of_nid(codec, nid); 3472 /* Add sanity check to pass klockwork check. 3473 * This should never happen. 3474 */ 3475 if (WARN_ON(spdif == NULL)) 3476 return; 3477 3478 curr_fmt = snd_hda_codec_read(codec, nid, 0, 3479 AC_VERB_GET_STREAM_FORMAT, 0); 3480 reset = codec->spdif_status_reset && 3481 (spdif->ctls & AC_DIG1_ENABLE) && 3482 curr_fmt != format; 3483 3484 /* turn off SPDIF if needed; otherwise the IEC958 bits won't be 3485 updated */ 3486 if (reset) 3487 set_dig_out_convert(codec, nid, 3488 spdif->ctls & ~AC_DIG1_ENABLE & 0xff, 3489 -1); 3490 snd_hda_codec_setup_stream(codec, nid, stream_tag, 0, format); 3491 if (codec->slave_dig_outs) { 3492 const hda_nid_t *d; 3493 for (d = codec->slave_dig_outs; *d; d++) 3494 snd_hda_codec_setup_stream(codec, *d, stream_tag, 0, 3495 format); 3496 } 3497 /* turn on again (if needed) */ 3498 if (reset) 3499 set_dig_out_convert(codec, nid, 3500 spdif->ctls & 0xff, -1); 3501 } 3502 3503 static void cleanup_dig_out_stream(struct hda_codec *codec, hda_nid_t nid) 3504 { 3505 snd_hda_codec_cleanup_stream(codec, nid); 3506 if (codec->slave_dig_outs) { 3507 const hda_nid_t *d; 3508 for (d = codec->slave_dig_outs; *d; d++) 3509 snd_hda_codec_cleanup_stream(codec, *d); 3510 } 3511 } 3512 3513 /** 3514 * snd_hda_multi_out_dig_open - open the digital out in the exclusive mode 3515 * @codec: the HDA codec 3516 * @mout: hda_multi_out object 3517 */ 3518 int snd_hda_multi_out_dig_open(struct hda_codec *codec, 3519 struct hda_multi_out *mout) 3520 { 3521 mutex_lock(&codec->spdif_mutex); 3522 if (mout->dig_out_used == HDA_DIG_ANALOG_DUP) 3523 /* already opened as analog dup; reset it once */ 3524 cleanup_dig_out_stream(codec, mout->dig_out_nid); 3525 mout->dig_out_used = HDA_DIG_EXCLUSIVE; 3526 mutex_unlock(&codec->spdif_mutex); 3527 return 0; 3528 } 3529 EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_open); 3530 3531 /** 3532 * snd_hda_multi_out_dig_prepare - prepare the digital out stream 3533 * @codec: the HDA codec 3534 * @mout: hda_multi_out object 3535 * @stream_tag: stream tag to assign 3536 * @format: format id to assign 3537 * @substream: PCM substream to assign 3538 */ 3539 int snd_hda_multi_out_dig_prepare(struct hda_codec *codec, 3540 struct hda_multi_out *mout, 3541 unsigned int stream_tag, 3542 unsigned int format, 3543 struct snd_pcm_substream *substream) 3544 { 3545 mutex_lock(&codec->spdif_mutex); 3546 setup_dig_out_stream(codec, mout->dig_out_nid, stream_tag, format); 3547 mutex_unlock(&codec->spdif_mutex); 3548 return 0; 3549 } 3550 EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_prepare); 3551 3552 /** 3553 * snd_hda_multi_out_dig_cleanup - clean-up the digital out stream 3554 * @codec: the HDA codec 3555 * @mout: hda_multi_out object 3556 */ 3557 int snd_hda_multi_out_dig_cleanup(struct hda_codec *codec, 3558 struct hda_multi_out *mout) 3559 { 3560 mutex_lock(&codec->spdif_mutex); 3561 cleanup_dig_out_stream(codec, mout->dig_out_nid); 3562 mutex_unlock(&codec->spdif_mutex); 3563 return 0; 3564 } 3565 EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_cleanup); 3566 3567 /** 3568 * snd_hda_multi_out_dig_close - release the digital out stream 3569 * @codec: the HDA codec 3570 * @mout: hda_multi_out object 3571 */ 3572 int snd_hda_multi_out_dig_close(struct hda_codec *codec, 3573 struct hda_multi_out *mout) 3574 { 3575 mutex_lock(&codec->spdif_mutex); 3576 mout->dig_out_used = 0; 3577 mutex_unlock(&codec->spdif_mutex); 3578 return 0; 3579 } 3580 EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_close); 3581 3582 /** 3583 * snd_hda_multi_out_analog_open - open analog outputs 3584 * @codec: the HDA codec 3585 * @mout: hda_multi_out object 3586 * @substream: PCM substream to assign 3587 * @hinfo: PCM information to assign 3588 * 3589 * Open analog outputs and set up the hw-constraints. 3590 * If the digital outputs can be opened as slave, open the digital 3591 * outputs, too. 3592 */ 3593 int snd_hda_multi_out_analog_open(struct hda_codec *codec, 3594 struct hda_multi_out *mout, 3595 struct snd_pcm_substream *substream, 3596 struct hda_pcm_stream *hinfo) 3597 { 3598 struct snd_pcm_runtime *runtime = substream->runtime; 3599 runtime->hw.channels_max = mout->max_channels; 3600 if (mout->dig_out_nid) { 3601 if (!mout->analog_rates) { 3602 mout->analog_rates = hinfo->rates; 3603 mout->analog_formats = hinfo->formats; 3604 mout->analog_maxbps = hinfo->maxbps; 3605 } else { 3606 runtime->hw.rates = mout->analog_rates; 3607 runtime->hw.formats = mout->analog_formats; 3608 hinfo->maxbps = mout->analog_maxbps; 3609 } 3610 if (!mout->spdif_rates) { 3611 snd_hda_query_supported_pcm(codec, mout->dig_out_nid, 3612 &mout->spdif_rates, 3613 &mout->spdif_formats, 3614 &mout->spdif_maxbps); 3615 } 3616 mutex_lock(&codec->spdif_mutex); 3617 if (mout->share_spdif) { 3618 if ((runtime->hw.rates & mout->spdif_rates) && 3619 (runtime->hw.formats & mout->spdif_formats)) { 3620 runtime->hw.rates &= mout->spdif_rates; 3621 runtime->hw.formats &= mout->spdif_formats; 3622 if (mout->spdif_maxbps < hinfo->maxbps) 3623 hinfo->maxbps = mout->spdif_maxbps; 3624 } else { 3625 mout->share_spdif = 0; 3626 /* FIXME: need notify? */ 3627 } 3628 } 3629 mutex_unlock(&codec->spdif_mutex); 3630 } 3631 return snd_pcm_hw_constraint_step(substream->runtime, 0, 3632 SNDRV_PCM_HW_PARAM_CHANNELS, 2); 3633 } 3634 EXPORT_SYMBOL_GPL(snd_hda_multi_out_analog_open); 3635 3636 /** 3637 * snd_hda_multi_out_analog_prepare - Preapre the analog outputs. 3638 * @codec: the HDA codec 3639 * @mout: hda_multi_out object 3640 * @stream_tag: stream tag to assign 3641 * @format: format id to assign 3642 * @substream: PCM substream to assign 3643 * 3644 * Set up the i/o for analog out. 3645 * When the digital out is available, copy the front out to digital out, too. 3646 */ 3647 int snd_hda_multi_out_analog_prepare(struct hda_codec *codec, 3648 struct hda_multi_out *mout, 3649 unsigned int stream_tag, 3650 unsigned int format, 3651 struct snd_pcm_substream *substream) 3652 { 3653 const hda_nid_t *nids = mout->dac_nids; 3654 int chs = substream->runtime->channels; 3655 struct hda_spdif_out *spdif; 3656 int i; 3657 3658 mutex_lock(&codec->spdif_mutex); 3659 spdif = snd_hda_spdif_out_of_nid(codec, mout->dig_out_nid); 3660 if (mout->dig_out_nid && mout->share_spdif && 3661 mout->dig_out_used != HDA_DIG_EXCLUSIVE) { 3662 if (chs == 2 && spdif != NULL && 3663 snd_hda_is_supported_format(codec, mout->dig_out_nid, 3664 format) && 3665 !(spdif->status & IEC958_AES0_NONAUDIO)) { 3666 mout->dig_out_used = HDA_DIG_ANALOG_DUP; 3667 setup_dig_out_stream(codec, mout->dig_out_nid, 3668 stream_tag, format); 3669 } else { 3670 mout->dig_out_used = 0; 3671 cleanup_dig_out_stream(codec, mout->dig_out_nid); 3672 } 3673 } 3674 mutex_unlock(&codec->spdif_mutex); 3675 3676 /* front */ 3677 snd_hda_codec_setup_stream(codec, nids[HDA_FRONT], stream_tag, 3678 0, format); 3679 if (!mout->no_share_stream && 3680 mout->hp_nid && mout->hp_nid != nids[HDA_FRONT]) 3681 /* headphone out will just decode front left/right (stereo) */ 3682 snd_hda_codec_setup_stream(codec, mout->hp_nid, stream_tag, 3683 0, format); 3684 /* extra outputs copied from front */ 3685 for (i = 0; i < ARRAY_SIZE(mout->hp_out_nid); i++) 3686 if (!mout->no_share_stream && mout->hp_out_nid[i]) 3687 snd_hda_codec_setup_stream(codec, 3688 mout->hp_out_nid[i], 3689 stream_tag, 0, format); 3690 3691 /* surrounds */ 3692 for (i = 1; i < mout->num_dacs; i++) { 3693 if (chs >= (i + 1) * 2) /* independent out */ 3694 snd_hda_codec_setup_stream(codec, nids[i], stream_tag, 3695 i * 2, format); 3696 else if (!mout->no_share_stream) /* copy front */ 3697 snd_hda_codec_setup_stream(codec, nids[i], stream_tag, 3698 0, format); 3699 } 3700 3701 /* extra surrounds */ 3702 for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++) { 3703 int ch = 0; 3704 if (!mout->extra_out_nid[i]) 3705 break; 3706 if (chs >= (i + 1) * 2) 3707 ch = i * 2; 3708 else if (!mout->no_share_stream) 3709 break; 3710 snd_hda_codec_setup_stream(codec, mout->extra_out_nid[i], 3711 stream_tag, ch, format); 3712 } 3713 3714 return 0; 3715 } 3716 EXPORT_SYMBOL_GPL(snd_hda_multi_out_analog_prepare); 3717 3718 /** 3719 * snd_hda_multi_out_analog_cleanup - clean up the setting for analog out 3720 * @codec: the HDA codec 3721 * @mout: hda_multi_out object 3722 */ 3723 int snd_hda_multi_out_analog_cleanup(struct hda_codec *codec, 3724 struct hda_multi_out *mout) 3725 { 3726 const hda_nid_t *nids = mout->dac_nids; 3727 int i; 3728 3729 for (i = 0; i < mout->num_dacs; i++) 3730 snd_hda_codec_cleanup_stream(codec, nids[i]); 3731 if (mout->hp_nid) 3732 snd_hda_codec_cleanup_stream(codec, mout->hp_nid); 3733 for (i = 0; i < ARRAY_SIZE(mout->hp_out_nid); i++) 3734 if (mout->hp_out_nid[i]) 3735 snd_hda_codec_cleanup_stream(codec, 3736 mout->hp_out_nid[i]); 3737 for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++) 3738 if (mout->extra_out_nid[i]) 3739 snd_hda_codec_cleanup_stream(codec, 3740 mout->extra_out_nid[i]); 3741 mutex_lock(&codec->spdif_mutex); 3742 if (mout->dig_out_nid && mout->dig_out_used == HDA_DIG_ANALOG_DUP) { 3743 cleanup_dig_out_stream(codec, mout->dig_out_nid); 3744 mout->dig_out_used = 0; 3745 } 3746 mutex_unlock(&codec->spdif_mutex); 3747 return 0; 3748 } 3749 EXPORT_SYMBOL_GPL(snd_hda_multi_out_analog_cleanup); 3750 3751 /** 3752 * snd_hda_get_default_vref - Get the default (mic) VREF pin bits 3753 * @codec: the HDA codec 3754 * @pin: referred pin NID 3755 * 3756 * Guess the suitable VREF pin bits to be set as the pin-control value. 3757 * Note: the function doesn't set the AC_PINCTL_IN_EN bit. 3758 */ 3759 unsigned int snd_hda_get_default_vref(struct hda_codec *codec, hda_nid_t pin) 3760 { 3761 unsigned int pincap; 3762 unsigned int oldval; 3763 oldval = snd_hda_codec_read(codec, pin, 0, 3764 AC_VERB_GET_PIN_WIDGET_CONTROL, 0); 3765 pincap = snd_hda_query_pin_caps(codec, pin); 3766 pincap = (pincap & AC_PINCAP_VREF) >> AC_PINCAP_VREF_SHIFT; 3767 /* Exception: if the default pin setup is vref50, we give it priority */ 3768 if ((pincap & AC_PINCAP_VREF_80) && oldval != PIN_VREF50) 3769 return AC_PINCTL_VREF_80; 3770 else if (pincap & AC_PINCAP_VREF_50) 3771 return AC_PINCTL_VREF_50; 3772 else if (pincap & AC_PINCAP_VREF_100) 3773 return AC_PINCTL_VREF_100; 3774 else if (pincap & AC_PINCAP_VREF_GRD) 3775 return AC_PINCTL_VREF_GRD; 3776 return AC_PINCTL_VREF_HIZ; 3777 } 3778 EXPORT_SYMBOL_GPL(snd_hda_get_default_vref); 3779 3780 /** 3781 * snd_hda_correct_pin_ctl - correct the pin ctl value for matching with the pin cap 3782 * @codec: the HDA codec 3783 * @pin: referred pin NID 3784 * @val: pin ctl value to audit 3785 */ 3786 unsigned int snd_hda_correct_pin_ctl(struct hda_codec *codec, 3787 hda_nid_t pin, unsigned int val) 3788 { 3789 static unsigned int cap_lists[][2] = { 3790 { AC_PINCTL_VREF_100, AC_PINCAP_VREF_100 }, 3791 { AC_PINCTL_VREF_80, AC_PINCAP_VREF_80 }, 3792 { AC_PINCTL_VREF_50, AC_PINCAP_VREF_50 }, 3793 { AC_PINCTL_VREF_GRD, AC_PINCAP_VREF_GRD }, 3794 }; 3795 unsigned int cap; 3796 3797 if (!val) 3798 return 0; 3799 cap = snd_hda_query_pin_caps(codec, pin); 3800 if (!cap) 3801 return val; /* don't know what to do... */ 3802 3803 if (val & AC_PINCTL_OUT_EN) { 3804 if (!(cap & AC_PINCAP_OUT)) 3805 val &= ~(AC_PINCTL_OUT_EN | AC_PINCTL_HP_EN); 3806 else if ((val & AC_PINCTL_HP_EN) && !(cap & AC_PINCAP_HP_DRV)) 3807 val &= ~AC_PINCTL_HP_EN; 3808 } 3809 3810 if (val & AC_PINCTL_IN_EN) { 3811 if (!(cap & AC_PINCAP_IN)) 3812 val &= ~(AC_PINCTL_IN_EN | AC_PINCTL_VREFEN); 3813 else { 3814 unsigned int vcap, vref; 3815 int i; 3816 vcap = (cap & AC_PINCAP_VREF) >> AC_PINCAP_VREF_SHIFT; 3817 vref = val & AC_PINCTL_VREFEN; 3818 for (i = 0; i < ARRAY_SIZE(cap_lists); i++) { 3819 if (vref == cap_lists[i][0] && 3820 !(vcap & cap_lists[i][1])) { 3821 if (i == ARRAY_SIZE(cap_lists) - 1) 3822 vref = AC_PINCTL_VREF_HIZ; 3823 else 3824 vref = cap_lists[i + 1][0]; 3825 } 3826 } 3827 val &= ~AC_PINCTL_VREFEN; 3828 val |= vref; 3829 } 3830 } 3831 3832 return val; 3833 } 3834 EXPORT_SYMBOL_GPL(snd_hda_correct_pin_ctl); 3835 3836 /** 3837 * _snd_hda_pin_ctl - Helper to set pin ctl value 3838 * @codec: the HDA codec 3839 * @pin: referred pin NID 3840 * @val: pin control value to set 3841 * @cached: access over codec pinctl cache or direct write 3842 * 3843 * This function is a helper to set a pin ctl value more safely. 3844 * It corrects the pin ctl value via snd_hda_correct_pin_ctl(), stores the 3845 * value in pin target array via snd_hda_codec_set_pin_target(), then 3846 * actually writes the value via either snd_hda_codec_update_cache() or 3847 * snd_hda_codec_write() depending on @cached flag. 3848 */ 3849 int _snd_hda_set_pin_ctl(struct hda_codec *codec, hda_nid_t pin, 3850 unsigned int val, bool cached) 3851 { 3852 val = snd_hda_correct_pin_ctl(codec, pin, val); 3853 snd_hda_codec_set_pin_target(codec, pin, val); 3854 if (cached) 3855 return snd_hda_codec_update_cache(codec, pin, 0, 3856 AC_VERB_SET_PIN_WIDGET_CONTROL, val); 3857 else 3858 return snd_hda_codec_write(codec, pin, 0, 3859 AC_VERB_SET_PIN_WIDGET_CONTROL, val); 3860 } 3861 EXPORT_SYMBOL_GPL(_snd_hda_set_pin_ctl); 3862 3863 /** 3864 * snd_hda_add_imux_item - Add an item to input_mux 3865 * @codec: the HDA codec 3866 * @imux: imux helper object 3867 * @label: the name of imux item to assign 3868 * @index: index number of imux item to assign 3869 * @type_idx: pointer to store the resultant label index 3870 * 3871 * When the same label is used already in the existing items, the number 3872 * suffix is appended to the label. This label index number is stored 3873 * to type_idx when non-NULL pointer is given. 3874 */ 3875 int snd_hda_add_imux_item(struct hda_codec *codec, 3876 struct hda_input_mux *imux, const char *label, 3877 int index, int *type_idx) 3878 { 3879 int i, label_idx = 0; 3880 if (imux->num_items >= HDA_MAX_NUM_INPUTS) { 3881 codec_err(codec, "hda_codec: Too many imux items!\n"); 3882 return -EINVAL; 3883 } 3884 for (i = 0; i < imux->num_items; i++) { 3885 if (!strncmp(label, imux->items[i].label, strlen(label))) 3886 label_idx++; 3887 } 3888 if (type_idx) 3889 *type_idx = label_idx; 3890 if (label_idx > 0) 3891 snprintf(imux->items[imux->num_items].label, 3892 sizeof(imux->items[imux->num_items].label), 3893 "%s %d", label, label_idx); 3894 else 3895 strlcpy(imux->items[imux->num_items].label, label, 3896 sizeof(imux->items[imux->num_items].label)); 3897 imux->items[imux->num_items].index = index; 3898 imux->num_items++; 3899 return 0; 3900 } 3901 EXPORT_SYMBOL_GPL(snd_hda_add_imux_item); 3902 3903 /** 3904 * snd_hda_bus_reset_codecs - Reset the bus 3905 * @bus: HD-audio bus 3906 */ 3907 void snd_hda_bus_reset_codecs(struct hda_bus *bus) 3908 { 3909 struct hda_codec *codec; 3910 3911 list_for_each_codec(codec, bus) { 3912 /* FIXME: maybe a better way needed for forced reset */ 3913 cancel_delayed_work_sync(&codec->jackpoll_work); 3914 #ifdef CONFIG_PM 3915 if (hda_codec_is_power_on(codec)) { 3916 hda_call_codec_suspend(codec); 3917 hda_call_codec_resume(codec); 3918 } 3919 #endif 3920 } 3921 } 3922 3923 /** 3924 * snd_print_pcm_bits - Print the supported PCM fmt bits to the string buffer 3925 * @pcm: PCM caps bits 3926 * @buf: the string buffer to write 3927 * @buflen: the max buffer length 3928 * 3929 * used by hda_proc.c and hda_eld.c 3930 */ 3931 void snd_print_pcm_bits(int pcm, char *buf, int buflen) 3932 { 3933 static unsigned int bits[] = { 8, 16, 20, 24, 32 }; 3934 int i, j; 3935 3936 for (i = 0, j = 0; i < ARRAY_SIZE(bits); i++) 3937 if (pcm & (AC_SUPPCM_BITS_8 << i)) 3938 j += snprintf(buf + j, buflen - j, " %d", bits[i]); 3939 3940 buf[j] = '\0'; /* necessary when j == 0 */ 3941 } 3942 EXPORT_SYMBOL_GPL(snd_print_pcm_bits); 3943 3944 MODULE_DESCRIPTION("HDA codec core"); 3945 MODULE_LICENSE("GPL"); 3946