1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * Universal Interface for Intel High Definition Audio Codec 4 * 5 * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de> 6 */ 7 8 #include <linux/init.h> 9 #include <linux/delay.h> 10 #include <linux/slab.h> 11 #include <linux/mutex.h> 12 #include <linux/module.h> 13 #include <linux/pm.h> 14 #include <linux/pm_runtime.h> 15 #include <sound/core.h> 16 #include <sound/hda_codec.h> 17 #include <sound/asoundef.h> 18 #include <sound/tlv.h> 19 #include <sound/initval.h> 20 #include <sound/jack.h> 21 #include "hda_local.h" 22 #include "hda_beep.h" 23 #include "hda_jack.h" 24 #include <sound/hda_hwdep.h> 25 #include <sound/hda_component.h> 26 27 #define codec_in_pm(codec) snd_hdac_is_in_pm(&codec->core) 28 #define hda_codec_is_power_on(codec) snd_hdac_is_power_on(&codec->core) 29 #define codec_has_epss(codec) \ 30 ((codec)->core.power_caps & AC_PWRST_EPSS) 31 #define codec_has_clkstop(codec) \ 32 ((codec)->core.power_caps & AC_PWRST_CLKSTOP) 33 34 /* 35 * Send and receive a verb - passed to exec_verb override for hdac_device 36 */ 37 static int codec_exec_verb(struct hdac_device *dev, unsigned int cmd, 38 unsigned int flags, unsigned int *res) 39 { 40 struct hda_codec *codec = container_of(dev, struct hda_codec, core); 41 struct hda_bus *bus = codec->bus; 42 int err; 43 44 if (cmd == ~0) 45 return -1; 46 47 again: 48 snd_hda_power_up_pm(codec); 49 mutex_lock(&bus->core.cmd_mutex); 50 if (flags & HDA_RW_NO_RESPONSE_FALLBACK) 51 bus->no_response_fallback = 1; 52 err = snd_hdac_bus_exec_verb_unlocked(&bus->core, codec->core.addr, 53 cmd, res); 54 bus->no_response_fallback = 0; 55 mutex_unlock(&bus->core.cmd_mutex); 56 snd_hda_power_down_pm(codec); 57 if (!codec_in_pm(codec) && res && err == -EAGAIN) { 58 if (bus->response_reset) { 59 codec_dbg(codec, 60 "resetting BUS due to fatal communication error\n"); 61 snd_hda_bus_reset(bus); 62 } 63 goto again; 64 } 65 /* clear reset-flag when the communication gets recovered */ 66 if (!err || codec_in_pm(codec)) 67 bus->response_reset = 0; 68 return err; 69 } 70 71 /** 72 * snd_hda_sequence_write - sequence writes 73 * @codec: the HDA codec 74 * @seq: VERB array to send 75 * 76 * Send the commands sequentially from the given array. 77 * The array must be terminated with NID=0. 78 */ 79 void snd_hda_sequence_write(struct hda_codec *codec, const struct hda_verb *seq) 80 { 81 for (; seq->nid; seq++) 82 snd_hda_codec_write(codec, seq->nid, 0, seq->verb, seq->param); 83 } 84 EXPORT_SYMBOL_GPL(snd_hda_sequence_write); 85 86 /* connection list element */ 87 struct hda_conn_list { 88 struct list_head list; 89 int len; 90 hda_nid_t nid; 91 hda_nid_t conns[0]; 92 }; 93 94 /* look up the cached results */ 95 static struct hda_conn_list * 96 lookup_conn_list(struct hda_codec *codec, hda_nid_t nid) 97 { 98 struct hda_conn_list *p; 99 list_for_each_entry(p, &codec->conn_list, list) { 100 if (p->nid == nid) 101 return p; 102 } 103 return NULL; 104 } 105 106 static int add_conn_list(struct hda_codec *codec, hda_nid_t nid, int len, 107 const hda_nid_t *list) 108 { 109 struct hda_conn_list *p; 110 111 p = kmalloc(struct_size(p, conns, len), GFP_KERNEL); 112 if (!p) 113 return -ENOMEM; 114 p->len = len; 115 p->nid = nid; 116 memcpy(p->conns, list, len * sizeof(hda_nid_t)); 117 list_add(&p->list, &codec->conn_list); 118 return 0; 119 } 120 121 static void remove_conn_list(struct hda_codec *codec) 122 { 123 while (!list_empty(&codec->conn_list)) { 124 struct hda_conn_list *p; 125 p = list_first_entry(&codec->conn_list, typeof(*p), list); 126 list_del(&p->list); 127 kfree(p); 128 } 129 } 130 131 /* read the connection and add to the cache */ 132 static int read_and_add_raw_conns(struct hda_codec *codec, hda_nid_t nid) 133 { 134 hda_nid_t list[32]; 135 hda_nid_t *result = list; 136 int len; 137 138 len = snd_hda_get_raw_connections(codec, nid, list, ARRAY_SIZE(list)); 139 if (len == -ENOSPC) { 140 len = snd_hda_get_num_raw_conns(codec, nid); 141 result = kmalloc_array(len, sizeof(hda_nid_t), GFP_KERNEL); 142 if (!result) 143 return -ENOMEM; 144 len = snd_hda_get_raw_connections(codec, nid, result, len); 145 } 146 if (len >= 0) 147 len = snd_hda_override_conn_list(codec, nid, len, result); 148 if (result != list) 149 kfree(result); 150 return len; 151 } 152 153 /** 154 * snd_hda_get_conn_list - get connection list 155 * @codec: the HDA codec 156 * @nid: NID to parse 157 * @listp: the pointer to store NID list 158 * 159 * Parses the connection list of the given widget and stores the pointer 160 * to the list of NIDs. 161 * 162 * Returns the number of connections, or a negative error code. 163 * 164 * Note that the returned pointer isn't protected against the list 165 * modification. If snd_hda_override_conn_list() might be called 166 * concurrently, protect with a mutex appropriately. 167 */ 168 int snd_hda_get_conn_list(struct hda_codec *codec, hda_nid_t nid, 169 const hda_nid_t **listp) 170 { 171 bool added = false; 172 173 for (;;) { 174 int err; 175 const struct hda_conn_list *p; 176 177 /* if the connection-list is already cached, read it */ 178 p = lookup_conn_list(codec, nid); 179 if (p) { 180 if (listp) 181 *listp = p->conns; 182 return p->len; 183 } 184 if (snd_BUG_ON(added)) 185 return -EINVAL; 186 187 err = read_and_add_raw_conns(codec, nid); 188 if (err < 0) 189 return err; 190 added = true; 191 } 192 } 193 EXPORT_SYMBOL_GPL(snd_hda_get_conn_list); 194 195 /** 196 * snd_hda_get_connections - copy connection list 197 * @codec: the HDA codec 198 * @nid: NID to parse 199 * @conn_list: connection list array; when NULL, checks only the size 200 * @max_conns: max. number of connections to store 201 * 202 * Parses the connection list of the given widget and stores the list 203 * of NIDs. 204 * 205 * Returns the number of connections, or a negative error code. 206 */ 207 int snd_hda_get_connections(struct hda_codec *codec, hda_nid_t nid, 208 hda_nid_t *conn_list, int max_conns) 209 { 210 const hda_nid_t *list; 211 int len = snd_hda_get_conn_list(codec, nid, &list); 212 213 if (len > 0 && conn_list) { 214 if (len > max_conns) { 215 codec_err(codec, "Too many connections %d for NID 0x%x\n", 216 len, nid); 217 return -EINVAL; 218 } 219 memcpy(conn_list, list, len * sizeof(hda_nid_t)); 220 } 221 222 return len; 223 } 224 EXPORT_SYMBOL_GPL(snd_hda_get_connections); 225 226 /** 227 * snd_hda_override_conn_list - add/modify the connection-list to cache 228 * @codec: the HDA codec 229 * @nid: NID to parse 230 * @len: number of connection list entries 231 * @list: the list of connection entries 232 * 233 * Add or modify the given connection-list to the cache. If the corresponding 234 * cache already exists, invalidate it and append a new one. 235 * 236 * Returns zero or a negative error code. 237 */ 238 int snd_hda_override_conn_list(struct hda_codec *codec, hda_nid_t nid, int len, 239 const hda_nid_t *list) 240 { 241 struct hda_conn_list *p; 242 243 p = lookup_conn_list(codec, nid); 244 if (p) { 245 list_del(&p->list); 246 kfree(p); 247 } 248 249 return add_conn_list(codec, nid, len, list); 250 } 251 EXPORT_SYMBOL_GPL(snd_hda_override_conn_list); 252 253 /** 254 * snd_hda_get_conn_index - get the connection index of the given NID 255 * @codec: the HDA codec 256 * @mux: NID containing the list 257 * @nid: NID to select 258 * @recursive: 1 when searching NID recursively, otherwise 0 259 * 260 * Parses the connection list of the widget @mux and checks whether the 261 * widget @nid is present. If it is, return the connection index. 262 * Otherwise it returns -1. 263 */ 264 int snd_hda_get_conn_index(struct hda_codec *codec, hda_nid_t mux, 265 hda_nid_t nid, int recursive) 266 { 267 const hda_nid_t *conn; 268 int i, nums; 269 270 nums = snd_hda_get_conn_list(codec, mux, &conn); 271 for (i = 0; i < nums; i++) 272 if (conn[i] == nid) 273 return i; 274 if (!recursive) 275 return -1; 276 if (recursive > 10) { 277 codec_dbg(codec, "too deep connection for 0x%x\n", nid); 278 return -1; 279 } 280 recursive++; 281 for (i = 0; i < nums; i++) { 282 unsigned int type = get_wcaps_type(get_wcaps(codec, conn[i])); 283 if (type == AC_WID_PIN || type == AC_WID_AUD_OUT) 284 continue; 285 if (snd_hda_get_conn_index(codec, conn[i], nid, recursive) >= 0) 286 return i; 287 } 288 return -1; 289 } 290 EXPORT_SYMBOL_GPL(snd_hda_get_conn_index); 291 292 /** 293 * snd_hda_get_num_devices - get DEVLIST_LEN parameter of the given widget 294 * @codec: the HDA codec 295 * @nid: NID of the pin to parse 296 * 297 * Get the device entry number on the given widget. This is a feature of 298 * DP MST audio. Each pin can have several device entries in it. 299 */ 300 unsigned int snd_hda_get_num_devices(struct hda_codec *codec, hda_nid_t nid) 301 { 302 unsigned int wcaps = get_wcaps(codec, nid); 303 unsigned int parm; 304 305 if (!codec->dp_mst || !(wcaps & AC_WCAP_DIGITAL) || 306 get_wcaps_type(wcaps) != AC_WID_PIN) 307 return 0; 308 309 parm = snd_hdac_read_parm_uncached(&codec->core, nid, AC_PAR_DEVLIST_LEN); 310 if (parm == -1) 311 parm = 0; 312 return parm & AC_DEV_LIST_LEN_MASK; 313 } 314 EXPORT_SYMBOL_GPL(snd_hda_get_num_devices); 315 316 /** 317 * snd_hda_get_devices - copy device list without cache 318 * @codec: the HDA codec 319 * @nid: NID of the pin to parse 320 * @dev_list: device list array 321 * @max_devices: max. number of devices to store 322 * 323 * Copy the device list. This info is dynamic and so not cached. 324 * Currently called only from hda_proc.c, so not exported. 325 */ 326 int snd_hda_get_devices(struct hda_codec *codec, hda_nid_t nid, 327 u8 *dev_list, int max_devices) 328 { 329 unsigned int parm; 330 int i, dev_len, devices; 331 332 parm = snd_hda_get_num_devices(codec, nid); 333 if (!parm) /* not multi-stream capable */ 334 return 0; 335 336 dev_len = parm + 1; 337 dev_len = dev_len < max_devices ? dev_len : max_devices; 338 339 devices = 0; 340 while (devices < dev_len) { 341 if (snd_hdac_read(&codec->core, nid, 342 AC_VERB_GET_DEVICE_LIST, devices, &parm)) 343 break; /* error */ 344 345 for (i = 0; i < 8; i++) { 346 dev_list[devices] = (u8)parm; 347 parm >>= 4; 348 devices++; 349 if (devices >= dev_len) 350 break; 351 } 352 } 353 return devices; 354 } 355 356 /** 357 * snd_hda_get_dev_select - get device entry select on the pin 358 * @codec: the HDA codec 359 * @nid: NID of the pin to get device entry select 360 * 361 * Get the devcie entry select on the pin. Return the device entry 362 * id selected on the pin. Return 0 means the first device entry 363 * is selected or MST is not supported. 364 */ 365 int snd_hda_get_dev_select(struct hda_codec *codec, hda_nid_t nid) 366 { 367 /* not support dp_mst will always return 0, using first dev_entry */ 368 if (!codec->dp_mst) 369 return 0; 370 371 return snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DEVICE_SEL, 0); 372 } 373 EXPORT_SYMBOL_GPL(snd_hda_get_dev_select); 374 375 /** 376 * snd_hda_set_dev_select - set device entry select on the pin 377 * @codec: the HDA codec 378 * @nid: NID of the pin to set device entry select 379 * @dev_id: device entry id to be set 380 * 381 * Set the device entry select on the pin nid. 382 */ 383 int snd_hda_set_dev_select(struct hda_codec *codec, hda_nid_t nid, int dev_id) 384 { 385 int ret, num_devices; 386 387 /* not support dp_mst will always return 0, using first dev_entry */ 388 if (!codec->dp_mst) 389 return 0; 390 391 /* AC_PAR_DEVLIST_LEN is 0 based. */ 392 num_devices = snd_hda_get_num_devices(codec, nid) + 1; 393 /* If Device List Length is 0 (num_device = 1), 394 * the pin is not multi stream capable. 395 * Do nothing in this case. 396 */ 397 if (num_devices == 1) 398 return 0; 399 400 /* Behavior of setting index being equal to or greater than 401 * Device List Length is not predictable 402 */ 403 if (num_devices <= dev_id) 404 return -EINVAL; 405 406 ret = snd_hda_codec_write(codec, nid, 0, 407 AC_VERB_SET_DEVICE_SEL, dev_id); 408 409 return ret; 410 } 411 EXPORT_SYMBOL_GPL(snd_hda_set_dev_select); 412 413 /* 414 * read widget caps for each widget and store in cache 415 */ 416 static int read_widget_caps(struct hda_codec *codec, hda_nid_t fg_node) 417 { 418 int i; 419 hda_nid_t nid; 420 421 codec->wcaps = kmalloc_array(codec->core.num_nodes, 4, GFP_KERNEL); 422 if (!codec->wcaps) 423 return -ENOMEM; 424 nid = codec->core.start_nid; 425 for (i = 0; i < codec->core.num_nodes; i++, nid++) 426 codec->wcaps[i] = snd_hdac_read_parm_uncached(&codec->core, 427 nid, AC_PAR_AUDIO_WIDGET_CAP); 428 return 0; 429 } 430 431 /* read all pin default configurations and save codec->init_pins */ 432 static int read_pin_defaults(struct hda_codec *codec) 433 { 434 hda_nid_t nid; 435 436 for_each_hda_codec_node(nid, codec) { 437 struct hda_pincfg *pin; 438 unsigned int wcaps = get_wcaps(codec, nid); 439 unsigned int wid_type = get_wcaps_type(wcaps); 440 if (wid_type != AC_WID_PIN) 441 continue; 442 pin = snd_array_new(&codec->init_pins); 443 if (!pin) 444 return -ENOMEM; 445 pin->nid = nid; 446 pin->cfg = snd_hda_codec_read(codec, nid, 0, 447 AC_VERB_GET_CONFIG_DEFAULT, 0); 448 /* 449 * all device entries are the same widget control so far 450 * fixme: if any codec is different, need fix here 451 */ 452 pin->ctrl = snd_hda_codec_read(codec, nid, 0, 453 AC_VERB_GET_PIN_WIDGET_CONTROL, 454 0); 455 } 456 return 0; 457 } 458 459 /* look up the given pin config list and return the item matching with NID */ 460 static struct hda_pincfg *look_up_pincfg(struct hda_codec *codec, 461 struct snd_array *array, 462 hda_nid_t nid) 463 { 464 struct hda_pincfg *pin; 465 int i; 466 467 snd_array_for_each(array, i, pin) { 468 if (pin->nid == nid) 469 return pin; 470 } 471 return NULL; 472 } 473 474 /* set the current pin config value for the given NID. 475 * the value is cached, and read via snd_hda_codec_get_pincfg() 476 */ 477 int snd_hda_add_pincfg(struct hda_codec *codec, struct snd_array *list, 478 hda_nid_t nid, unsigned int cfg) 479 { 480 struct hda_pincfg *pin; 481 482 /* the check below may be invalid when pins are added by a fixup 483 * dynamically (e.g. via snd_hda_codec_update_widgets()), so disabled 484 * for now 485 */ 486 /* 487 if (get_wcaps_type(get_wcaps(codec, nid)) != AC_WID_PIN) 488 return -EINVAL; 489 */ 490 491 pin = look_up_pincfg(codec, list, nid); 492 if (!pin) { 493 pin = snd_array_new(list); 494 if (!pin) 495 return -ENOMEM; 496 pin->nid = nid; 497 } 498 pin->cfg = cfg; 499 return 0; 500 } 501 502 /** 503 * snd_hda_codec_set_pincfg - Override a pin default configuration 504 * @codec: the HDA codec 505 * @nid: NID to set the pin config 506 * @cfg: the pin default config value 507 * 508 * Override a pin default configuration value in the cache. 509 * This value can be read by snd_hda_codec_get_pincfg() in a higher 510 * priority than the real hardware value. 511 */ 512 int snd_hda_codec_set_pincfg(struct hda_codec *codec, 513 hda_nid_t nid, unsigned int cfg) 514 { 515 return snd_hda_add_pincfg(codec, &codec->driver_pins, nid, cfg); 516 } 517 EXPORT_SYMBOL_GPL(snd_hda_codec_set_pincfg); 518 519 /** 520 * snd_hda_codec_get_pincfg - Obtain a pin-default configuration 521 * @codec: the HDA codec 522 * @nid: NID to get the pin config 523 * 524 * Get the current pin config value of the given pin NID. 525 * If the pincfg value is cached or overridden via sysfs or driver, 526 * returns the cached value. 527 */ 528 unsigned int snd_hda_codec_get_pincfg(struct hda_codec *codec, hda_nid_t nid) 529 { 530 struct hda_pincfg *pin; 531 532 #ifdef CONFIG_SND_HDA_RECONFIG 533 { 534 unsigned int cfg = 0; 535 mutex_lock(&codec->user_mutex); 536 pin = look_up_pincfg(codec, &codec->user_pins, nid); 537 if (pin) 538 cfg = pin->cfg; 539 mutex_unlock(&codec->user_mutex); 540 if (cfg) 541 return cfg; 542 } 543 #endif 544 pin = look_up_pincfg(codec, &codec->driver_pins, nid); 545 if (pin) 546 return pin->cfg; 547 pin = look_up_pincfg(codec, &codec->init_pins, nid); 548 if (pin) 549 return pin->cfg; 550 return 0; 551 } 552 EXPORT_SYMBOL_GPL(snd_hda_codec_get_pincfg); 553 554 /** 555 * snd_hda_codec_set_pin_target - remember the current pinctl target value 556 * @codec: the HDA codec 557 * @nid: pin NID 558 * @val: assigned pinctl value 559 * 560 * This function stores the given value to a pinctl target value in the 561 * pincfg table. This isn't always as same as the actually written value 562 * but can be referred at any time via snd_hda_codec_get_pin_target(). 563 */ 564 int snd_hda_codec_set_pin_target(struct hda_codec *codec, hda_nid_t nid, 565 unsigned int val) 566 { 567 struct hda_pincfg *pin; 568 569 pin = look_up_pincfg(codec, &codec->init_pins, nid); 570 if (!pin) 571 return -EINVAL; 572 pin->target = val; 573 return 0; 574 } 575 EXPORT_SYMBOL_GPL(snd_hda_codec_set_pin_target); 576 577 /** 578 * snd_hda_codec_get_pin_target - return the current pinctl target value 579 * @codec: the HDA codec 580 * @nid: pin NID 581 */ 582 int snd_hda_codec_get_pin_target(struct hda_codec *codec, hda_nid_t nid) 583 { 584 struct hda_pincfg *pin; 585 586 pin = look_up_pincfg(codec, &codec->init_pins, nid); 587 if (!pin) 588 return 0; 589 return pin->target; 590 } 591 EXPORT_SYMBOL_GPL(snd_hda_codec_get_pin_target); 592 593 /** 594 * snd_hda_shutup_pins - Shut up all pins 595 * @codec: the HDA codec 596 * 597 * Clear all pin controls to shup up before suspend for avoiding click noise. 598 * The controls aren't cached so that they can be resumed properly. 599 */ 600 void snd_hda_shutup_pins(struct hda_codec *codec) 601 { 602 const struct hda_pincfg *pin; 603 int i; 604 605 /* don't shut up pins when unloading the driver; otherwise it breaks 606 * the default pin setup at the next load of the driver 607 */ 608 if (codec->bus->shutdown) 609 return; 610 snd_array_for_each(&codec->init_pins, i, pin) { 611 /* use read here for syncing after issuing each verb */ 612 snd_hda_codec_read(codec, pin->nid, 0, 613 AC_VERB_SET_PIN_WIDGET_CONTROL, 0); 614 } 615 codec->pins_shutup = 1; 616 } 617 EXPORT_SYMBOL_GPL(snd_hda_shutup_pins); 618 619 #ifdef CONFIG_PM 620 /* Restore the pin controls cleared previously via snd_hda_shutup_pins() */ 621 static void restore_shutup_pins(struct hda_codec *codec) 622 { 623 const struct hda_pincfg *pin; 624 int i; 625 626 if (!codec->pins_shutup) 627 return; 628 if (codec->bus->shutdown) 629 return; 630 snd_array_for_each(&codec->init_pins, i, pin) { 631 snd_hda_codec_write(codec, pin->nid, 0, 632 AC_VERB_SET_PIN_WIDGET_CONTROL, 633 pin->ctrl); 634 } 635 codec->pins_shutup = 0; 636 } 637 #endif 638 639 static void hda_jackpoll_work(struct work_struct *work) 640 { 641 struct hda_codec *codec = 642 container_of(work, struct hda_codec, jackpoll_work.work); 643 644 snd_hda_jack_set_dirty_all(codec); 645 snd_hda_jack_poll_all(codec); 646 647 if (!codec->jackpoll_interval) 648 return; 649 650 schedule_delayed_work(&codec->jackpoll_work, 651 codec->jackpoll_interval); 652 } 653 654 /* release all pincfg lists */ 655 static void free_init_pincfgs(struct hda_codec *codec) 656 { 657 snd_array_free(&codec->driver_pins); 658 #ifdef CONFIG_SND_HDA_RECONFIG 659 snd_array_free(&codec->user_pins); 660 #endif 661 snd_array_free(&codec->init_pins); 662 } 663 664 /* 665 * audio-converter setup caches 666 */ 667 struct hda_cvt_setup { 668 hda_nid_t nid; 669 u8 stream_tag; 670 u8 channel_id; 671 u16 format_id; 672 unsigned char active; /* cvt is currently used */ 673 unsigned char dirty; /* setups should be cleared */ 674 }; 675 676 /* get or create a cache entry for the given audio converter NID */ 677 static struct hda_cvt_setup * 678 get_hda_cvt_setup(struct hda_codec *codec, hda_nid_t nid) 679 { 680 struct hda_cvt_setup *p; 681 int i; 682 683 snd_array_for_each(&codec->cvt_setups, i, p) { 684 if (p->nid == nid) 685 return p; 686 } 687 p = snd_array_new(&codec->cvt_setups); 688 if (p) 689 p->nid = nid; 690 return p; 691 } 692 693 /* 694 * PCM device 695 */ 696 static void release_pcm(struct kref *kref) 697 { 698 struct hda_pcm *pcm = container_of(kref, struct hda_pcm, kref); 699 700 if (pcm->pcm) 701 snd_device_free(pcm->codec->card, pcm->pcm); 702 clear_bit(pcm->device, pcm->codec->bus->pcm_dev_bits); 703 kfree(pcm->name); 704 kfree(pcm); 705 } 706 707 void snd_hda_codec_pcm_put(struct hda_pcm *pcm) 708 { 709 kref_put(&pcm->kref, release_pcm); 710 } 711 EXPORT_SYMBOL_GPL(snd_hda_codec_pcm_put); 712 713 struct hda_pcm *snd_hda_codec_pcm_new(struct hda_codec *codec, 714 const char *fmt, ...) 715 { 716 struct hda_pcm *pcm; 717 va_list args; 718 719 pcm = kzalloc(sizeof(*pcm), GFP_KERNEL); 720 if (!pcm) 721 return NULL; 722 723 pcm->codec = codec; 724 kref_init(&pcm->kref); 725 va_start(args, fmt); 726 pcm->name = kvasprintf(GFP_KERNEL, fmt, args); 727 va_end(args); 728 if (!pcm->name) { 729 kfree(pcm); 730 return NULL; 731 } 732 733 list_add_tail(&pcm->list, &codec->pcm_list_head); 734 return pcm; 735 } 736 EXPORT_SYMBOL_GPL(snd_hda_codec_pcm_new); 737 738 /* 739 * codec destructor 740 */ 741 static void codec_release_pcms(struct hda_codec *codec) 742 { 743 struct hda_pcm *pcm, *n; 744 745 list_for_each_entry_safe(pcm, n, &codec->pcm_list_head, list) { 746 list_del_init(&pcm->list); 747 if (pcm->pcm) 748 snd_device_disconnect(codec->card, pcm->pcm); 749 snd_hda_codec_pcm_put(pcm); 750 } 751 } 752 753 void snd_hda_codec_cleanup_for_unbind(struct hda_codec *codec) 754 { 755 if (codec->registered) { 756 /* pm_runtime_put() is called in snd_hdac_device_exit() */ 757 pm_runtime_get_noresume(hda_codec_dev(codec)); 758 pm_runtime_disable(hda_codec_dev(codec)); 759 codec->registered = 0; 760 } 761 762 cancel_delayed_work_sync(&codec->jackpoll_work); 763 if (!codec->in_freeing) 764 snd_hda_ctls_clear(codec); 765 codec_release_pcms(codec); 766 snd_hda_detach_beep_device(codec); 767 memset(&codec->patch_ops, 0, sizeof(codec->patch_ops)); 768 snd_hda_jack_tbl_clear(codec); 769 codec->proc_widget_hook = NULL; 770 codec->spec = NULL; 771 772 /* free only driver_pins so that init_pins + user_pins are restored */ 773 snd_array_free(&codec->driver_pins); 774 snd_array_free(&codec->cvt_setups); 775 snd_array_free(&codec->spdif_out); 776 snd_array_free(&codec->verbs); 777 codec->preset = NULL; 778 codec->slave_dig_outs = NULL; 779 codec->spdif_status_reset = 0; 780 snd_array_free(&codec->mixers); 781 snd_array_free(&codec->nids); 782 remove_conn_list(codec); 783 snd_hdac_regmap_exit(&codec->core); 784 } 785 786 static unsigned int hda_set_power_state(struct hda_codec *codec, 787 unsigned int power_state); 788 789 /* enable/disable display power per codec */ 790 static void codec_display_power(struct hda_codec *codec, bool enable) 791 { 792 if (codec->display_power_control) 793 snd_hdac_display_power(&codec->bus->core, codec->addr, enable); 794 } 795 796 /* also called from hda_bind.c */ 797 void snd_hda_codec_register(struct hda_codec *codec) 798 { 799 if (codec->registered) 800 return; 801 if (device_is_registered(hda_codec_dev(codec))) { 802 codec_display_power(codec, true); 803 pm_runtime_enable(hda_codec_dev(codec)); 804 /* it was powered up in snd_hda_codec_new(), now all done */ 805 snd_hda_power_down(codec); 806 codec->registered = 1; 807 } 808 } 809 810 static int snd_hda_codec_dev_register(struct snd_device *device) 811 { 812 snd_hda_codec_register(device->device_data); 813 return 0; 814 } 815 816 static int snd_hda_codec_dev_free(struct snd_device *device) 817 { 818 struct hda_codec *codec = device->device_data; 819 820 codec->in_freeing = 1; 821 /* 822 * snd_hda_codec_device_new() is used by legacy HDA and ASoC driver. 823 * We can't unregister ASoC device since it will be unregistered in 824 * snd_hdac_ext_bus_device_remove(). 825 */ 826 if (codec->core.type == HDA_DEV_LEGACY) 827 snd_hdac_device_unregister(&codec->core); 828 codec_display_power(codec, false); 829 830 /* 831 * In the case of ASoC HD-audio bus, the device refcount is released in 832 * snd_hdac_ext_bus_device_remove() explicitly. 833 */ 834 if (codec->core.type == HDA_DEV_LEGACY) 835 put_device(hda_codec_dev(codec)); 836 837 return 0; 838 } 839 840 static void snd_hda_codec_dev_release(struct device *dev) 841 { 842 struct hda_codec *codec = dev_to_hda_codec(dev); 843 844 free_init_pincfgs(codec); 845 snd_hdac_device_exit(&codec->core); 846 snd_hda_sysfs_clear(codec); 847 kfree(codec->modelname); 848 kfree(codec->wcaps); 849 850 /* 851 * In the case of ASoC HD-audio, hda_codec is device managed. 852 * It will be freed when the ASoC device is removed. 853 */ 854 if (codec->core.type == HDA_DEV_LEGACY) 855 kfree(codec); 856 } 857 858 #define DEV_NAME_LEN 31 859 860 static int snd_hda_codec_device_init(struct hda_bus *bus, struct snd_card *card, 861 unsigned int codec_addr, struct hda_codec **codecp) 862 { 863 char name[DEV_NAME_LEN]; 864 struct hda_codec *codec; 865 int err; 866 867 dev_dbg(card->dev, "%s: entry\n", __func__); 868 869 if (snd_BUG_ON(!bus)) 870 return -EINVAL; 871 if (snd_BUG_ON(codec_addr > HDA_MAX_CODEC_ADDRESS)) 872 return -EINVAL; 873 874 codec = kzalloc(sizeof(*codec), GFP_KERNEL); 875 if (!codec) 876 return -ENOMEM; 877 878 sprintf(name, "hdaudioC%dD%d", card->number, codec_addr); 879 err = snd_hdac_device_init(&codec->core, &bus->core, name, codec_addr); 880 if (err < 0) { 881 kfree(codec); 882 return err; 883 } 884 885 codec->core.type = HDA_DEV_LEGACY; 886 *codecp = codec; 887 888 return err; 889 } 890 891 /** 892 * snd_hda_codec_new - create a HDA codec 893 * @bus: the bus to assign 894 * @card: card for this codec 895 * @codec_addr: the codec address 896 * @codecp: the pointer to store the generated codec 897 * 898 * Returns 0 if successful, or a negative error code. 899 */ 900 int snd_hda_codec_new(struct hda_bus *bus, struct snd_card *card, 901 unsigned int codec_addr, struct hda_codec **codecp) 902 { 903 int ret; 904 905 ret = snd_hda_codec_device_init(bus, card, codec_addr, codecp); 906 if (ret < 0) 907 return ret; 908 909 return snd_hda_codec_device_new(bus, card, codec_addr, *codecp); 910 } 911 EXPORT_SYMBOL_GPL(snd_hda_codec_new); 912 913 int snd_hda_codec_device_new(struct hda_bus *bus, struct snd_card *card, 914 unsigned int codec_addr, struct hda_codec *codec) 915 { 916 char component[31]; 917 hda_nid_t fg; 918 int err; 919 static const struct snd_device_ops dev_ops = { 920 .dev_register = snd_hda_codec_dev_register, 921 .dev_free = snd_hda_codec_dev_free, 922 }; 923 924 dev_dbg(card->dev, "%s: entry\n", __func__); 925 926 if (snd_BUG_ON(!bus)) 927 return -EINVAL; 928 if (snd_BUG_ON(codec_addr > HDA_MAX_CODEC_ADDRESS)) 929 return -EINVAL; 930 931 codec->core.dev.release = snd_hda_codec_dev_release; 932 codec->core.exec_verb = codec_exec_verb; 933 934 codec->bus = bus; 935 codec->card = card; 936 codec->addr = codec_addr; 937 mutex_init(&codec->spdif_mutex); 938 mutex_init(&codec->control_mutex); 939 snd_array_init(&codec->mixers, sizeof(struct hda_nid_item), 32); 940 snd_array_init(&codec->nids, sizeof(struct hda_nid_item), 32); 941 snd_array_init(&codec->init_pins, sizeof(struct hda_pincfg), 16); 942 snd_array_init(&codec->driver_pins, sizeof(struct hda_pincfg), 16); 943 snd_array_init(&codec->cvt_setups, sizeof(struct hda_cvt_setup), 8); 944 snd_array_init(&codec->spdif_out, sizeof(struct hda_spdif_out), 16); 945 snd_array_init(&codec->jacktbl, sizeof(struct hda_jack_tbl), 16); 946 snd_array_init(&codec->verbs, sizeof(struct hda_verb *), 8); 947 INIT_LIST_HEAD(&codec->conn_list); 948 INIT_LIST_HEAD(&codec->pcm_list_head); 949 950 INIT_DELAYED_WORK(&codec->jackpoll_work, hda_jackpoll_work); 951 codec->depop_delay = -1; 952 codec->fixup_id = HDA_FIXUP_ID_NOT_SET; 953 954 #ifdef CONFIG_PM 955 codec->power_jiffies = jiffies; 956 #endif 957 958 snd_hda_sysfs_init(codec); 959 960 if (codec->bus->modelname) { 961 codec->modelname = kstrdup(codec->bus->modelname, GFP_KERNEL); 962 if (!codec->modelname) { 963 err = -ENOMEM; 964 goto error; 965 } 966 } 967 968 fg = codec->core.afg ? codec->core.afg : codec->core.mfg; 969 err = read_widget_caps(codec, fg); 970 if (err < 0) 971 goto error; 972 err = read_pin_defaults(codec); 973 if (err < 0) 974 goto error; 975 976 /* power-up all before initialization */ 977 hda_set_power_state(codec, AC_PWRST_D0); 978 codec->core.dev.power.power_state = PMSG_ON; 979 980 snd_hda_codec_proc_new(codec); 981 982 snd_hda_create_hwdep(codec); 983 984 sprintf(component, "HDA:%08x,%08x,%08x", codec->core.vendor_id, 985 codec->core.subsystem_id, codec->core.revision_id); 986 snd_component_add(card, component); 987 988 err = snd_device_new(card, SNDRV_DEV_CODEC, codec, &dev_ops); 989 if (err < 0) 990 goto error; 991 992 return 0; 993 994 error: 995 put_device(hda_codec_dev(codec)); 996 return err; 997 } 998 EXPORT_SYMBOL_GPL(snd_hda_codec_device_new); 999 1000 /** 1001 * snd_hda_codec_update_widgets - Refresh widget caps and pin defaults 1002 * @codec: the HDA codec 1003 * 1004 * Forcibly refresh the all widget caps and the init pin configurations of 1005 * the given codec. 1006 */ 1007 int snd_hda_codec_update_widgets(struct hda_codec *codec) 1008 { 1009 hda_nid_t fg; 1010 int err; 1011 1012 err = snd_hdac_refresh_widgets(&codec->core); 1013 if (err < 0) 1014 return err; 1015 1016 /* Assume the function group node does not change, 1017 * only the widget nodes may change. 1018 */ 1019 kfree(codec->wcaps); 1020 fg = codec->core.afg ? codec->core.afg : codec->core.mfg; 1021 err = read_widget_caps(codec, fg); 1022 if (err < 0) 1023 return err; 1024 1025 snd_array_free(&codec->init_pins); 1026 err = read_pin_defaults(codec); 1027 1028 return err; 1029 } 1030 EXPORT_SYMBOL_GPL(snd_hda_codec_update_widgets); 1031 1032 /* update the stream-id if changed */ 1033 static void update_pcm_stream_id(struct hda_codec *codec, 1034 struct hda_cvt_setup *p, hda_nid_t nid, 1035 u32 stream_tag, int channel_id) 1036 { 1037 unsigned int oldval, newval; 1038 1039 if (p->stream_tag != stream_tag || p->channel_id != channel_id) { 1040 oldval = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONV, 0); 1041 newval = (stream_tag << 4) | channel_id; 1042 if (oldval != newval) 1043 snd_hda_codec_write(codec, nid, 0, 1044 AC_VERB_SET_CHANNEL_STREAMID, 1045 newval); 1046 p->stream_tag = stream_tag; 1047 p->channel_id = channel_id; 1048 } 1049 } 1050 1051 /* update the format-id if changed */ 1052 static void update_pcm_format(struct hda_codec *codec, struct hda_cvt_setup *p, 1053 hda_nid_t nid, int format) 1054 { 1055 unsigned int oldval; 1056 1057 if (p->format_id != format) { 1058 oldval = snd_hda_codec_read(codec, nid, 0, 1059 AC_VERB_GET_STREAM_FORMAT, 0); 1060 if (oldval != format) { 1061 msleep(1); 1062 snd_hda_codec_write(codec, nid, 0, 1063 AC_VERB_SET_STREAM_FORMAT, 1064 format); 1065 } 1066 p->format_id = format; 1067 } 1068 } 1069 1070 /** 1071 * snd_hda_codec_setup_stream - set up the codec for streaming 1072 * @codec: the CODEC to set up 1073 * @nid: the NID to set up 1074 * @stream_tag: stream tag to pass, it's between 0x1 and 0xf. 1075 * @channel_id: channel id to pass, zero based. 1076 * @format: stream format. 1077 */ 1078 void snd_hda_codec_setup_stream(struct hda_codec *codec, hda_nid_t nid, 1079 u32 stream_tag, 1080 int channel_id, int format) 1081 { 1082 struct hda_codec *c; 1083 struct hda_cvt_setup *p; 1084 int type; 1085 int i; 1086 1087 if (!nid) 1088 return; 1089 1090 codec_dbg(codec, 1091 "hda_codec_setup_stream: NID=0x%x, stream=0x%x, channel=%d, format=0x%x\n", 1092 nid, stream_tag, channel_id, format); 1093 p = get_hda_cvt_setup(codec, nid); 1094 if (!p) 1095 return; 1096 1097 if (codec->patch_ops.stream_pm) 1098 codec->patch_ops.stream_pm(codec, nid, true); 1099 if (codec->pcm_format_first) 1100 update_pcm_format(codec, p, nid, format); 1101 update_pcm_stream_id(codec, p, nid, stream_tag, channel_id); 1102 if (!codec->pcm_format_first) 1103 update_pcm_format(codec, p, nid, format); 1104 1105 p->active = 1; 1106 p->dirty = 0; 1107 1108 /* make other inactive cvts with the same stream-tag dirty */ 1109 type = get_wcaps_type(get_wcaps(codec, nid)); 1110 list_for_each_codec(c, codec->bus) { 1111 snd_array_for_each(&c->cvt_setups, i, p) { 1112 if (!p->active && p->stream_tag == stream_tag && 1113 get_wcaps_type(get_wcaps(c, p->nid)) == type) 1114 p->dirty = 1; 1115 } 1116 } 1117 } 1118 EXPORT_SYMBOL_GPL(snd_hda_codec_setup_stream); 1119 1120 static void really_cleanup_stream(struct hda_codec *codec, 1121 struct hda_cvt_setup *q); 1122 1123 /** 1124 * __snd_hda_codec_cleanup_stream - clean up the codec for closing 1125 * @codec: the CODEC to clean up 1126 * @nid: the NID to clean up 1127 * @do_now: really clean up the stream instead of clearing the active flag 1128 */ 1129 void __snd_hda_codec_cleanup_stream(struct hda_codec *codec, hda_nid_t nid, 1130 int do_now) 1131 { 1132 struct hda_cvt_setup *p; 1133 1134 if (!nid) 1135 return; 1136 1137 if (codec->no_sticky_stream) 1138 do_now = 1; 1139 1140 codec_dbg(codec, "hda_codec_cleanup_stream: NID=0x%x\n", nid); 1141 p = get_hda_cvt_setup(codec, nid); 1142 if (p) { 1143 /* here we just clear the active flag when do_now isn't set; 1144 * actual clean-ups will be done later in 1145 * purify_inactive_streams() called from snd_hda_codec_prpapre() 1146 */ 1147 if (do_now) 1148 really_cleanup_stream(codec, p); 1149 else 1150 p->active = 0; 1151 } 1152 } 1153 EXPORT_SYMBOL_GPL(__snd_hda_codec_cleanup_stream); 1154 1155 static void really_cleanup_stream(struct hda_codec *codec, 1156 struct hda_cvt_setup *q) 1157 { 1158 hda_nid_t nid = q->nid; 1159 if (q->stream_tag || q->channel_id) 1160 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_CHANNEL_STREAMID, 0); 1161 if (q->format_id) 1162 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_STREAM_FORMAT, 0 1163 ); 1164 memset(q, 0, sizeof(*q)); 1165 q->nid = nid; 1166 if (codec->patch_ops.stream_pm) 1167 codec->patch_ops.stream_pm(codec, nid, false); 1168 } 1169 1170 /* clean up the all conflicting obsolete streams */ 1171 static void purify_inactive_streams(struct hda_codec *codec) 1172 { 1173 struct hda_codec *c; 1174 struct hda_cvt_setup *p; 1175 int i; 1176 1177 list_for_each_codec(c, codec->bus) { 1178 snd_array_for_each(&c->cvt_setups, i, p) { 1179 if (p->dirty) 1180 really_cleanup_stream(c, p); 1181 } 1182 } 1183 } 1184 1185 #ifdef CONFIG_PM 1186 /* clean up all streams; called from suspend */ 1187 static void hda_cleanup_all_streams(struct hda_codec *codec) 1188 { 1189 struct hda_cvt_setup *p; 1190 int i; 1191 1192 snd_array_for_each(&codec->cvt_setups, i, p) { 1193 if (p->stream_tag) 1194 really_cleanup_stream(codec, p); 1195 } 1196 } 1197 #endif 1198 1199 /* 1200 * amp access functions 1201 */ 1202 1203 /** 1204 * query_amp_caps - query AMP capabilities 1205 * @codec: the HD-auio codec 1206 * @nid: the NID to query 1207 * @direction: either #HDA_INPUT or #HDA_OUTPUT 1208 * 1209 * Query AMP capabilities for the given widget and direction. 1210 * Returns the obtained capability bits. 1211 * 1212 * When cap bits have been already read, this doesn't read again but 1213 * returns the cached value. 1214 */ 1215 u32 query_amp_caps(struct hda_codec *codec, hda_nid_t nid, int direction) 1216 { 1217 if (!(get_wcaps(codec, nid) & AC_WCAP_AMP_OVRD)) 1218 nid = codec->core.afg; 1219 return snd_hda_param_read(codec, nid, 1220 direction == HDA_OUTPUT ? 1221 AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP); 1222 } 1223 EXPORT_SYMBOL_GPL(query_amp_caps); 1224 1225 /** 1226 * snd_hda_check_amp_caps - query AMP capabilities 1227 * @codec: the HD-audio codec 1228 * @nid: the NID to query 1229 * @dir: either #HDA_INPUT or #HDA_OUTPUT 1230 * @bits: bit mask to check the result 1231 * 1232 * Check whether the widget has the given amp capability for the direction. 1233 */ 1234 bool snd_hda_check_amp_caps(struct hda_codec *codec, hda_nid_t nid, 1235 int dir, unsigned int bits) 1236 { 1237 if (!nid) 1238 return false; 1239 if (get_wcaps(codec, nid) & (1 << (dir + 1))) 1240 if (query_amp_caps(codec, nid, dir) & bits) 1241 return true; 1242 return false; 1243 } 1244 EXPORT_SYMBOL_GPL(snd_hda_check_amp_caps); 1245 1246 /** 1247 * snd_hda_override_amp_caps - Override the AMP capabilities 1248 * @codec: the CODEC to clean up 1249 * @nid: the NID to clean up 1250 * @dir: either #HDA_INPUT or #HDA_OUTPUT 1251 * @caps: the capability bits to set 1252 * 1253 * Override the cached AMP caps bits value by the given one. 1254 * This function is useful if the driver needs to adjust the AMP ranges, 1255 * e.g. limit to 0dB, etc. 1256 * 1257 * Returns zero if successful or a negative error code. 1258 */ 1259 int snd_hda_override_amp_caps(struct hda_codec *codec, hda_nid_t nid, int dir, 1260 unsigned int caps) 1261 { 1262 unsigned int parm; 1263 1264 snd_hda_override_wcaps(codec, nid, 1265 get_wcaps(codec, nid) | AC_WCAP_AMP_OVRD); 1266 parm = dir == HDA_OUTPUT ? AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP; 1267 return snd_hdac_override_parm(&codec->core, nid, parm, caps); 1268 } 1269 EXPORT_SYMBOL_GPL(snd_hda_override_amp_caps); 1270 1271 static unsigned int encode_amp(struct hda_codec *codec, hda_nid_t nid, 1272 int ch, int dir, int idx) 1273 { 1274 unsigned int cmd = snd_hdac_regmap_encode_amp(nid, ch, dir, idx); 1275 1276 /* enable fake mute if no h/w mute but min=mute */ 1277 if ((query_amp_caps(codec, nid, dir) & 1278 (AC_AMPCAP_MUTE | AC_AMPCAP_MIN_MUTE)) == AC_AMPCAP_MIN_MUTE) 1279 cmd |= AC_AMP_FAKE_MUTE; 1280 return cmd; 1281 } 1282 1283 /** 1284 * snd_hda_codec_amp_update - update the AMP mono value 1285 * @codec: HD-audio codec 1286 * @nid: NID to read the AMP value 1287 * @ch: channel to update (0 or 1) 1288 * @dir: #HDA_INPUT or #HDA_OUTPUT 1289 * @idx: the index value (only for input direction) 1290 * @mask: bit mask to set 1291 * @val: the bits value to set 1292 * 1293 * Update the AMP values for the given channel, direction and index. 1294 */ 1295 int snd_hda_codec_amp_update(struct hda_codec *codec, hda_nid_t nid, 1296 int ch, int dir, int idx, int mask, int val) 1297 { 1298 unsigned int cmd = encode_amp(codec, nid, ch, dir, idx); 1299 1300 return snd_hdac_regmap_update_raw(&codec->core, cmd, mask, val); 1301 } 1302 EXPORT_SYMBOL_GPL(snd_hda_codec_amp_update); 1303 1304 /** 1305 * snd_hda_codec_amp_stereo - update the AMP stereo values 1306 * @codec: HD-audio codec 1307 * @nid: NID to read the AMP value 1308 * @direction: #HDA_INPUT or #HDA_OUTPUT 1309 * @idx: the index value (only for input direction) 1310 * @mask: bit mask to set 1311 * @val: the bits value to set 1312 * 1313 * Update the AMP values like snd_hda_codec_amp_update(), but for a 1314 * stereo widget with the same mask and value. 1315 */ 1316 int snd_hda_codec_amp_stereo(struct hda_codec *codec, hda_nid_t nid, 1317 int direction, int idx, int mask, int val) 1318 { 1319 int ch, ret = 0; 1320 1321 if (snd_BUG_ON(mask & ~0xff)) 1322 mask &= 0xff; 1323 for (ch = 0; ch < 2; ch++) 1324 ret |= snd_hda_codec_amp_update(codec, nid, ch, direction, 1325 idx, mask, val); 1326 return ret; 1327 } 1328 EXPORT_SYMBOL_GPL(snd_hda_codec_amp_stereo); 1329 1330 /** 1331 * snd_hda_codec_amp_init - initialize the AMP value 1332 * @codec: the HDA codec 1333 * @nid: NID to read the AMP value 1334 * @ch: channel (left=0 or right=1) 1335 * @dir: #HDA_INPUT or #HDA_OUTPUT 1336 * @idx: the index value (only for input direction) 1337 * @mask: bit mask to set 1338 * @val: the bits value to set 1339 * 1340 * Works like snd_hda_codec_amp_update() but it writes the value only at 1341 * the first access. If the amp was already initialized / updated beforehand, 1342 * this does nothing. 1343 */ 1344 int snd_hda_codec_amp_init(struct hda_codec *codec, hda_nid_t nid, int ch, 1345 int dir, int idx, int mask, int val) 1346 { 1347 unsigned int cmd = encode_amp(codec, nid, ch, dir, idx); 1348 1349 if (!codec->core.regmap) 1350 return -EINVAL; 1351 return snd_hdac_regmap_update_raw_once(&codec->core, cmd, mask, val); 1352 } 1353 EXPORT_SYMBOL_GPL(snd_hda_codec_amp_init); 1354 1355 /** 1356 * snd_hda_codec_amp_init_stereo - initialize the stereo AMP value 1357 * @codec: the HDA codec 1358 * @nid: NID to read the AMP value 1359 * @dir: #HDA_INPUT or #HDA_OUTPUT 1360 * @idx: the index value (only for input direction) 1361 * @mask: bit mask to set 1362 * @val: the bits value to set 1363 * 1364 * Call snd_hda_codec_amp_init() for both stereo channels. 1365 */ 1366 int snd_hda_codec_amp_init_stereo(struct hda_codec *codec, hda_nid_t nid, 1367 int dir, int idx, int mask, int val) 1368 { 1369 int ch, ret = 0; 1370 1371 if (snd_BUG_ON(mask & ~0xff)) 1372 mask &= 0xff; 1373 for (ch = 0; ch < 2; ch++) 1374 ret |= snd_hda_codec_amp_init(codec, nid, ch, dir, 1375 idx, mask, val); 1376 return ret; 1377 } 1378 EXPORT_SYMBOL_GPL(snd_hda_codec_amp_init_stereo); 1379 1380 static u32 get_amp_max_value(struct hda_codec *codec, hda_nid_t nid, int dir, 1381 unsigned int ofs) 1382 { 1383 u32 caps = query_amp_caps(codec, nid, dir); 1384 /* get num steps */ 1385 caps = (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT; 1386 if (ofs < caps) 1387 caps -= ofs; 1388 return caps; 1389 } 1390 1391 /** 1392 * snd_hda_mixer_amp_volume_info - Info callback for a standard AMP mixer 1393 * @kcontrol: referred ctl element 1394 * @uinfo: pointer to get/store the data 1395 * 1396 * The control element is supposed to have the private_value field 1397 * set up via HDA_COMPOSE_AMP_VAL*() or related macros. 1398 */ 1399 int snd_hda_mixer_amp_volume_info(struct snd_kcontrol *kcontrol, 1400 struct snd_ctl_elem_info *uinfo) 1401 { 1402 struct hda_codec *codec = snd_kcontrol_chip(kcontrol); 1403 u16 nid = get_amp_nid(kcontrol); 1404 u8 chs = get_amp_channels(kcontrol); 1405 int dir = get_amp_direction(kcontrol); 1406 unsigned int ofs = get_amp_offset(kcontrol); 1407 1408 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; 1409 uinfo->count = chs == 3 ? 2 : 1; 1410 uinfo->value.integer.min = 0; 1411 uinfo->value.integer.max = get_amp_max_value(codec, nid, dir, ofs); 1412 if (!uinfo->value.integer.max) { 1413 codec_warn(codec, 1414 "num_steps = 0 for NID=0x%x (ctl = %s)\n", 1415 nid, kcontrol->id.name); 1416 return -EINVAL; 1417 } 1418 return 0; 1419 } 1420 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_volume_info); 1421 1422 1423 static inline unsigned int 1424 read_amp_value(struct hda_codec *codec, hda_nid_t nid, 1425 int ch, int dir, int idx, unsigned int ofs) 1426 { 1427 unsigned int val; 1428 val = snd_hda_codec_amp_read(codec, nid, ch, dir, idx); 1429 val &= HDA_AMP_VOLMASK; 1430 if (val >= ofs) 1431 val -= ofs; 1432 else 1433 val = 0; 1434 return val; 1435 } 1436 1437 static inline int 1438 update_amp_value(struct hda_codec *codec, hda_nid_t nid, 1439 int ch, int dir, int idx, unsigned int ofs, 1440 unsigned int val) 1441 { 1442 unsigned int maxval; 1443 1444 if (val > 0) 1445 val += ofs; 1446 /* ofs = 0: raw max value */ 1447 maxval = get_amp_max_value(codec, nid, dir, 0); 1448 if (val > maxval) 1449 val = maxval; 1450 return snd_hda_codec_amp_update(codec, nid, ch, dir, idx, 1451 HDA_AMP_VOLMASK, val); 1452 } 1453 1454 /** 1455 * snd_hda_mixer_amp_volume_get - Get callback for a standard AMP mixer volume 1456 * @kcontrol: ctl element 1457 * @ucontrol: pointer to get/store the data 1458 * 1459 * The control element is supposed to have the private_value field 1460 * set up via HDA_COMPOSE_AMP_VAL*() or related macros. 1461 */ 1462 int snd_hda_mixer_amp_volume_get(struct snd_kcontrol *kcontrol, 1463 struct snd_ctl_elem_value *ucontrol) 1464 { 1465 struct hda_codec *codec = snd_kcontrol_chip(kcontrol); 1466 hda_nid_t nid = get_amp_nid(kcontrol); 1467 int chs = get_amp_channels(kcontrol); 1468 int dir = get_amp_direction(kcontrol); 1469 int idx = get_amp_index(kcontrol); 1470 unsigned int ofs = get_amp_offset(kcontrol); 1471 long *valp = ucontrol->value.integer.value; 1472 1473 if (chs & 1) 1474 *valp++ = read_amp_value(codec, nid, 0, dir, idx, ofs); 1475 if (chs & 2) 1476 *valp = read_amp_value(codec, nid, 1, dir, idx, ofs); 1477 return 0; 1478 } 1479 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_volume_get); 1480 1481 /** 1482 * snd_hda_mixer_amp_volume_put - Put callback for a standard AMP mixer volume 1483 * @kcontrol: ctl element 1484 * @ucontrol: pointer to get/store the data 1485 * 1486 * The control element is supposed to have the private_value field 1487 * set up via HDA_COMPOSE_AMP_VAL*() or related macros. 1488 */ 1489 int snd_hda_mixer_amp_volume_put(struct snd_kcontrol *kcontrol, 1490 struct snd_ctl_elem_value *ucontrol) 1491 { 1492 struct hda_codec *codec = snd_kcontrol_chip(kcontrol); 1493 hda_nid_t nid = get_amp_nid(kcontrol); 1494 int chs = get_amp_channels(kcontrol); 1495 int dir = get_amp_direction(kcontrol); 1496 int idx = get_amp_index(kcontrol); 1497 unsigned int ofs = get_amp_offset(kcontrol); 1498 long *valp = ucontrol->value.integer.value; 1499 int change = 0; 1500 1501 if (chs & 1) { 1502 change = update_amp_value(codec, nid, 0, dir, idx, ofs, *valp); 1503 valp++; 1504 } 1505 if (chs & 2) 1506 change |= update_amp_value(codec, nid, 1, dir, idx, ofs, *valp); 1507 return change; 1508 } 1509 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_volume_put); 1510 1511 /* inquiry the amp caps and convert to TLV */ 1512 static void get_ctl_amp_tlv(struct snd_kcontrol *kcontrol, unsigned int *tlv) 1513 { 1514 struct hda_codec *codec = snd_kcontrol_chip(kcontrol); 1515 hda_nid_t nid = get_amp_nid(kcontrol); 1516 int dir = get_amp_direction(kcontrol); 1517 unsigned int ofs = get_amp_offset(kcontrol); 1518 bool min_mute = get_amp_min_mute(kcontrol); 1519 u32 caps, val1, val2; 1520 1521 caps = query_amp_caps(codec, nid, dir); 1522 val2 = (caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT; 1523 val2 = (val2 + 1) * 25; 1524 val1 = -((caps & AC_AMPCAP_OFFSET) >> AC_AMPCAP_OFFSET_SHIFT); 1525 val1 += ofs; 1526 val1 = ((int)val1) * ((int)val2); 1527 if (min_mute || (caps & AC_AMPCAP_MIN_MUTE)) 1528 val2 |= TLV_DB_SCALE_MUTE; 1529 tlv[SNDRV_CTL_TLVO_TYPE] = SNDRV_CTL_TLVT_DB_SCALE; 1530 tlv[SNDRV_CTL_TLVO_LEN] = 2 * sizeof(unsigned int); 1531 tlv[SNDRV_CTL_TLVO_DB_SCALE_MIN] = val1; 1532 tlv[SNDRV_CTL_TLVO_DB_SCALE_MUTE_AND_STEP] = val2; 1533 } 1534 1535 /** 1536 * snd_hda_mixer_amp_tlv - TLV callback for a standard AMP mixer volume 1537 * @kcontrol: ctl element 1538 * @op_flag: operation flag 1539 * @size: byte size of input TLV 1540 * @_tlv: TLV data 1541 * 1542 * The control element is supposed to have the private_value field 1543 * set up via HDA_COMPOSE_AMP_VAL*() or related macros. 1544 */ 1545 int snd_hda_mixer_amp_tlv(struct snd_kcontrol *kcontrol, int op_flag, 1546 unsigned int size, unsigned int __user *_tlv) 1547 { 1548 unsigned int tlv[4]; 1549 1550 if (size < 4 * sizeof(unsigned int)) 1551 return -ENOMEM; 1552 get_ctl_amp_tlv(kcontrol, tlv); 1553 if (copy_to_user(_tlv, tlv, sizeof(tlv))) 1554 return -EFAULT; 1555 return 0; 1556 } 1557 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_tlv); 1558 1559 /** 1560 * snd_hda_set_vmaster_tlv - Set TLV for a virtual master control 1561 * @codec: HD-audio codec 1562 * @nid: NID of a reference widget 1563 * @dir: #HDA_INPUT or #HDA_OUTPUT 1564 * @tlv: TLV data to be stored, at least 4 elements 1565 * 1566 * Set (static) TLV data for a virtual master volume using the AMP caps 1567 * obtained from the reference NID. 1568 * The volume range is recalculated as if the max volume is 0dB. 1569 */ 1570 void snd_hda_set_vmaster_tlv(struct hda_codec *codec, hda_nid_t nid, int dir, 1571 unsigned int *tlv) 1572 { 1573 u32 caps; 1574 int nums, step; 1575 1576 caps = query_amp_caps(codec, nid, dir); 1577 nums = (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT; 1578 step = (caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT; 1579 step = (step + 1) * 25; 1580 tlv[SNDRV_CTL_TLVO_TYPE] = SNDRV_CTL_TLVT_DB_SCALE; 1581 tlv[SNDRV_CTL_TLVO_LEN] = 2 * sizeof(unsigned int); 1582 tlv[SNDRV_CTL_TLVO_DB_SCALE_MIN] = -nums * step; 1583 tlv[SNDRV_CTL_TLVO_DB_SCALE_MUTE_AND_STEP] = step; 1584 } 1585 EXPORT_SYMBOL_GPL(snd_hda_set_vmaster_tlv); 1586 1587 /* find a mixer control element with the given name */ 1588 static struct snd_kcontrol * 1589 find_mixer_ctl(struct hda_codec *codec, const char *name, int dev, int idx) 1590 { 1591 struct snd_ctl_elem_id id; 1592 memset(&id, 0, sizeof(id)); 1593 id.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1594 id.device = dev; 1595 id.index = idx; 1596 if (snd_BUG_ON(strlen(name) >= sizeof(id.name))) 1597 return NULL; 1598 strcpy(id.name, name); 1599 return snd_ctl_find_id(codec->card, &id); 1600 } 1601 1602 /** 1603 * snd_hda_find_mixer_ctl - Find a mixer control element with the given name 1604 * @codec: HD-audio codec 1605 * @name: ctl id name string 1606 * 1607 * Get the control element with the given id string and IFACE_MIXER. 1608 */ 1609 struct snd_kcontrol *snd_hda_find_mixer_ctl(struct hda_codec *codec, 1610 const char *name) 1611 { 1612 return find_mixer_ctl(codec, name, 0, 0); 1613 } 1614 EXPORT_SYMBOL_GPL(snd_hda_find_mixer_ctl); 1615 1616 static int find_empty_mixer_ctl_idx(struct hda_codec *codec, const char *name, 1617 int start_idx) 1618 { 1619 int i, idx; 1620 /* 16 ctlrs should be large enough */ 1621 for (i = 0, idx = start_idx; i < 16; i++, idx++) { 1622 if (!find_mixer_ctl(codec, name, 0, idx)) 1623 return idx; 1624 } 1625 return -EBUSY; 1626 } 1627 1628 /** 1629 * snd_hda_ctl_add - Add a control element and assign to the codec 1630 * @codec: HD-audio codec 1631 * @nid: corresponding NID (optional) 1632 * @kctl: the control element to assign 1633 * 1634 * Add the given control element to an array inside the codec instance. 1635 * All control elements belonging to a codec are supposed to be added 1636 * by this function so that a proper clean-up works at the free or 1637 * reconfiguration time. 1638 * 1639 * If non-zero @nid is passed, the NID is assigned to the control element. 1640 * The assignment is shown in the codec proc file. 1641 * 1642 * snd_hda_ctl_add() checks the control subdev id field whether 1643 * #HDA_SUBDEV_NID_FLAG bit is set. If set (and @nid is zero), the lower 1644 * bits value is taken as the NID to assign. The #HDA_NID_ITEM_AMP bit 1645 * specifies if kctl->private_value is a HDA amplifier value. 1646 */ 1647 int snd_hda_ctl_add(struct hda_codec *codec, hda_nid_t nid, 1648 struct snd_kcontrol *kctl) 1649 { 1650 int err; 1651 unsigned short flags = 0; 1652 struct hda_nid_item *item; 1653 1654 if (kctl->id.subdevice & HDA_SUBDEV_AMP_FLAG) { 1655 flags |= HDA_NID_ITEM_AMP; 1656 if (nid == 0) 1657 nid = get_amp_nid_(kctl->private_value); 1658 } 1659 if ((kctl->id.subdevice & HDA_SUBDEV_NID_FLAG) != 0 && nid == 0) 1660 nid = kctl->id.subdevice & 0xffff; 1661 if (kctl->id.subdevice & (HDA_SUBDEV_NID_FLAG|HDA_SUBDEV_AMP_FLAG)) 1662 kctl->id.subdevice = 0; 1663 err = snd_ctl_add(codec->card, kctl); 1664 if (err < 0) 1665 return err; 1666 item = snd_array_new(&codec->mixers); 1667 if (!item) 1668 return -ENOMEM; 1669 item->kctl = kctl; 1670 item->nid = nid; 1671 item->flags = flags; 1672 return 0; 1673 } 1674 EXPORT_SYMBOL_GPL(snd_hda_ctl_add); 1675 1676 /** 1677 * snd_hda_add_nid - Assign a NID to a control element 1678 * @codec: HD-audio codec 1679 * @nid: corresponding NID (optional) 1680 * @kctl: the control element to assign 1681 * @index: index to kctl 1682 * 1683 * Add the given control element to an array inside the codec instance. 1684 * This function is used when #snd_hda_ctl_add cannot be used for 1:1 1685 * NID:KCTL mapping - for example "Capture Source" selector. 1686 */ 1687 int snd_hda_add_nid(struct hda_codec *codec, struct snd_kcontrol *kctl, 1688 unsigned int index, hda_nid_t nid) 1689 { 1690 struct hda_nid_item *item; 1691 1692 if (nid > 0) { 1693 item = snd_array_new(&codec->nids); 1694 if (!item) 1695 return -ENOMEM; 1696 item->kctl = kctl; 1697 item->index = index; 1698 item->nid = nid; 1699 return 0; 1700 } 1701 codec_err(codec, "no NID for mapping control %s:%d:%d\n", 1702 kctl->id.name, kctl->id.index, index); 1703 return -EINVAL; 1704 } 1705 EXPORT_SYMBOL_GPL(snd_hda_add_nid); 1706 1707 /** 1708 * snd_hda_ctls_clear - Clear all controls assigned to the given codec 1709 * @codec: HD-audio codec 1710 */ 1711 void snd_hda_ctls_clear(struct hda_codec *codec) 1712 { 1713 int i; 1714 struct hda_nid_item *items = codec->mixers.list; 1715 for (i = 0; i < codec->mixers.used; i++) 1716 snd_ctl_remove(codec->card, items[i].kctl); 1717 snd_array_free(&codec->mixers); 1718 snd_array_free(&codec->nids); 1719 } 1720 1721 /** 1722 * snd_hda_lock_devices - pseudo device locking 1723 * @bus: the BUS 1724 * 1725 * toggle card->shutdown to allow/disallow the device access (as a hack) 1726 */ 1727 int snd_hda_lock_devices(struct hda_bus *bus) 1728 { 1729 struct snd_card *card = bus->card; 1730 struct hda_codec *codec; 1731 1732 spin_lock(&card->files_lock); 1733 if (card->shutdown) 1734 goto err_unlock; 1735 card->shutdown = 1; 1736 if (!list_empty(&card->ctl_files)) 1737 goto err_clear; 1738 1739 list_for_each_codec(codec, bus) { 1740 struct hda_pcm *cpcm; 1741 list_for_each_entry(cpcm, &codec->pcm_list_head, list) { 1742 if (!cpcm->pcm) 1743 continue; 1744 if (cpcm->pcm->streams[0].substream_opened || 1745 cpcm->pcm->streams[1].substream_opened) 1746 goto err_clear; 1747 } 1748 } 1749 spin_unlock(&card->files_lock); 1750 return 0; 1751 1752 err_clear: 1753 card->shutdown = 0; 1754 err_unlock: 1755 spin_unlock(&card->files_lock); 1756 return -EINVAL; 1757 } 1758 EXPORT_SYMBOL_GPL(snd_hda_lock_devices); 1759 1760 /** 1761 * snd_hda_unlock_devices - pseudo device unlocking 1762 * @bus: the BUS 1763 */ 1764 void snd_hda_unlock_devices(struct hda_bus *bus) 1765 { 1766 struct snd_card *card = bus->card; 1767 1768 spin_lock(&card->files_lock); 1769 card->shutdown = 0; 1770 spin_unlock(&card->files_lock); 1771 } 1772 EXPORT_SYMBOL_GPL(snd_hda_unlock_devices); 1773 1774 /** 1775 * snd_hda_codec_reset - Clear all objects assigned to the codec 1776 * @codec: HD-audio codec 1777 * 1778 * This frees the all PCM and control elements assigned to the codec, and 1779 * clears the caches and restores the pin default configurations. 1780 * 1781 * When a device is being used, it returns -EBSY. If successfully freed, 1782 * returns zero. 1783 */ 1784 int snd_hda_codec_reset(struct hda_codec *codec) 1785 { 1786 struct hda_bus *bus = codec->bus; 1787 1788 if (snd_hda_lock_devices(bus) < 0) 1789 return -EBUSY; 1790 1791 /* OK, let it free */ 1792 snd_hdac_device_unregister(&codec->core); 1793 1794 /* allow device access again */ 1795 snd_hda_unlock_devices(bus); 1796 return 0; 1797 } 1798 1799 typedef int (*map_slave_func_t)(struct hda_codec *, void *, struct snd_kcontrol *); 1800 1801 /* apply the function to all matching slave ctls in the mixer list */ 1802 static int map_slaves(struct hda_codec *codec, const char * const *slaves, 1803 const char *suffix, map_slave_func_t func, void *data) 1804 { 1805 struct hda_nid_item *items; 1806 const char * const *s; 1807 int i, err; 1808 1809 items = codec->mixers.list; 1810 for (i = 0; i < codec->mixers.used; i++) { 1811 struct snd_kcontrol *sctl = items[i].kctl; 1812 if (!sctl || sctl->id.iface != SNDRV_CTL_ELEM_IFACE_MIXER) 1813 continue; 1814 for (s = slaves; *s; s++) { 1815 char tmpname[sizeof(sctl->id.name)]; 1816 const char *name = *s; 1817 if (suffix) { 1818 snprintf(tmpname, sizeof(tmpname), "%s %s", 1819 name, suffix); 1820 name = tmpname; 1821 } 1822 if (!strcmp(sctl->id.name, name)) { 1823 err = func(codec, data, sctl); 1824 if (err) 1825 return err; 1826 break; 1827 } 1828 } 1829 } 1830 return 0; 1831 } 1832 1833 static int check_slave_present(struct hda_codec *codec, 1834 void *data, struct snd_kcontrol *sctl) 1835 { 1836 return 1; 1837 } 1838 1839 /* call kctl->put with the given value(s) */ 1840 static int put_kctl_with_value(struct snd_kcontrol *kctl, int val) 1841 { 1842 struct snd_ctl_elem_value *ucontrol; 1843 ucontrol = kzalloc(sizeof(*ucontrol), GFP_KERNEL); 1844 if (!ucontrol) 1845 return -ENOMEM; 1846 ucontrol->value.integer.value[0] = val; 1847 ucontrol->value.integer.value[1] = val; 1848 kctl->put(kctl, ucontrol); 1849 kfree(ucontrol); 1850 return 0; 1851 } 1852 1853 struct slave_init_arg { 1854 struct hda_codec *codec; 1855 int step; 1856 }; 1857 1858 /* initialize the slave volume with 0dB via snd_ctl_apply_vmaster_slaves() */ 1859 static int init_slave_0dB(struct snd_kcontrol *slave, 1860 struct snd_kcontrol *kctl, 1861 void *_arg) 1862 { 1863 struct slave_init_arg *arg = _arg; 1864 int _tlv[4]; 1865 const int *tlv = NULL; 1866 int step; 1867 int val; 1868 1869 if (kctl->vd[0].access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) { 1870 if (kctl->tlv.c != snd_hda_mixer_amp_tlv) { 1871 codec_err(arg->codec, 1872 "Unexpected TLV callback for slave %s:%d\n", 1873 kctl->id.name, kctl->id.index); 1874 return 0; /* ignore */ 1875 } 1876 get_ctl_amp_tlv(kctl, _tlv); 1877 tlv = _tlv; 1878 } else if (kctl->vd[0].access & SNDRV_CTL_ELEM_ACCESS_TLV_READ) 1879 tlv = kctl->tlv.p; 1880 1881 if (!tlv || tlv[SNDRV_CTL_TLVO_TYPE] != SNDRV_CTL_TLVT_DB_SCALE) 1882 return 0; 1883 1884 step = tlv[SNDRV_CTL_TLVO_DB_SCALE_MUTE_AND_STEP]; 1885 step &= ~TLV_DB_SCALE_MUTE; 1886 if (!step) 1887 return 0; 1888 if (arg->step && arg->step != step) { 1889 codec_err(arg->codec, 1890 "Mismatching dB step for vmaster slave (%d!=%d)\n", 1891 arg->step, step); 1892 return 0; 1893 } 1894 1895 arg->step = step; 1896 val = -tlv[SNDRV_CTL_TLVO_DB_SCALE_MIN] / step; 1897 if (val > 0) { 1898 put_kctl_with_value(slave, val); 1899 return val; 1900 } 1901 1902 return 0; 1903 } 1904 1905 /* unmute the slave via snd_ctl_apply_vmaster_slaves() */ 1906 static int init_slave_unmute(struct snd_kcontrol *slave, 1907 struct snd_kcontrol *kctl, 1908 void *_arg) 1909 { 1910 return put_kctl_with_value(slave, 1); 1911 } 1912 1913 static int add_slave(struct hda_codec *codec, 1914 void *data, struct snd_kcontrol *slave) 1915 { 1916 return snd_ctl_add_slave(data, slave); 1917 } 1918 1919 /** 1920 * __snd_hda_add_vmaster - create a virtual master control and add slaves 1921 * @codec: HD-audio codec 1922 * @name: vmaster control name 1923 * @tlv: TLV data (optional) 1924 * @slaves: slave control names (optional) 1925 * @suffix: suffix string to each slave name (optional) 1926 * @init_slave_vol: initialize slaves to unmute/0dB 1927 * @ctl_ret: store the vmaster kcontrol in return 1928 * 1929 * Create a virtual master control with the given name. The TLV data 1930 * must be either NULL or a valid data. 1931 * 1932 * @slaves is a NULL-terminated array of strings, each of which is a 1933 * slave control name. All controls with these names are assigned to 1934 * the new virtual master control. 1935 * 1936 * This function returns zero if successful or a negative error code. 1937 */ 1938 int __snd_hda_add_vmaster(struct hda_codec *codec, char *name, 1939 unsigned int *tlv, const char * const *slaves, 1940 const char *suffix, bool init_slave_vol, 1941 struct snd_kcontrol **ctl_ret) 1942 { 1943 struct snd_kcontrol *kctl; 1944 int err; 1945 1946 if (ctl_ret) 1947 *ctl_ret = NULL; 1948 1949 err = map_slaves(codec, slaves, suffix, check_slave_present, NULL); 1950 if (err != 1) { 1951 codec_dbg(codec, "No slave found for %s\n", name); 1952 return 0; 1953 } 1954 kctl = snd_ctl_make_virtual_master(name, tlv); 1955 if (!kctl) 1956 return -ENOMEM; 1957 err = snd_hda_ctl_add(codec, 0, kctl); 1958 if (err < 0) 1959 return err; 1960 1961 err = map_slaves(codec, slaves, suffix, add_slave, kctl); 1962 if (err < 0) 1963 return err; 1964 1965 /* init with master mute & zero volume */ 1966 put_kctl_with_value(kctl, 0); 1967 if (init_slave_vol) { 1968 struct slave_init_arg arg = { 1969 .codec = codec, 1970 .step = 0, 1971 }; 1972 snd_ctl_apply_vmaster_slaves(kctl, 1973 tlv ? init_slave_0dB : init_slave_unmute, 1974 &arg); 1975 } 1976 1977 if (ctl_ret) 1978 *ctl_ret = kctl; 1979 return 0; 1980 } 1981 EXPORT_SYMBOL_GPL(__snd_hda_add_vmaster); 1982 1983 /* 1984 * mute-LED control using vmaster 1985 */ 1986 static int vmaster_mute_mode_info(struct snd_kcontrol *kcontrol, 1987 struct snd_ctl_elem_info *uinfo) 1988 { 1989 static const char * const texts[] = { 1990 "On", "Off", "Follow Master" 1991 }; 1992 1993 return snd_ctl_enum_info(uinfo, 1, 3, texts); 1994 } 1995 1996 static int vmaster_mute_mode_get(struct snd_kcontrol *kcontrol, 1997 struct snd_ctl_elem_value *ucontrol) 1998 { 1999 struct hda_vmaster_mute_hook *hook = snd_kcontrol_chip(kcontrol); 2000 ucontrol->value.enumerated.item[0] = hook->mute_mode; 2001 return 0; 2002 } 2003 2004 static int vmaster_mute_mode_put(struct snd_kcontrol *kcontrol, 2005 struct snd_ctl_elem_value *ucontrol) 2006 { 2007 struct hda_vmaster_mute_hook *hook = snd_kcontrol_chip(kcontrol); 2008 unsigned int old_mode = hook->mute_mode; 2009 2010 hook->mute_mode = ucontrol->value.enumerated.item[0]; 2011 if (hook->mute_mode > HDA_VMUTE_FOLLOW_MASTER) 2012 hook->mute_mode = HDA_VMUTE_FOLLOW_MASTER; 2013 if (old_mode == hook->mute_mode) 2014 return 0; 2015 snd_hda_sync_vmaster_hook(hook); 2016 return 1; 2017 } 2018 2019 static const struct snd_kcontrol_new vmaster_mute_mode = { 2020 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 2021 .name = "Mute-LED Mode", 2022 .info = vmaster_mute_mode_info, 2023 .get = vmaster_mute_mode_get, 2024 .put = vmaster_mute_mode_put, 2025 }; 2026 2027 /* meta hook to call each driver's vmaster hook */ 2028 static void vmaster_hook(void *private_data, int enabled) 2029 { 2030 struct hda_vmaster_mute_hook *hook = private_data; 2031 2032 if (hook->mute_mode != HDA_VMUTE_FOLLOW_MASTER) 2033 enabled = hook->mute_mode; 2034 hook->hook(hook->codec, enabled); 2035 } 2036 2037 /** 2038 * snd_hda_add_vmaster_hook - Add a vmaster hook for mute-LED 2039 * @codec: the HDA codec 2040 * @hook: the vmaster hook object 2041 * @expose_enum_ctl: flag to create an enum ctl 2042 * 2043 * Add a mute-LED hook with the given vmaster switch kctl. 2044 * When @expose_enum_ctl is set, "Mute-LED Mode" control is automatically 2045 * created and associated with the given hook. 2046 */ 2047 int snd_hda_add_vmaster_hook(struct hda_codec *codec, 2048 struct hda_vmaster_mute_hook *hook, 2049 bool expose_enum_ctl) 2050 { 2051 struct snd_kcontrol *kctl; 2052 2053 if (!hook->hook || !hook->sw_kctl) 2054 return 0; 2055 hook->codec = codec; 2056 hook->mute_mode = HDA_VMUTE_FOLLOW_MASTER; 2057 snd_ctl_add_vmaster_hook(hook->sw_kctl, vmaster_hook, hook); 2058 if (!expose_enum_ctl) 2059 return 0; 2060 kctl = snd_ctl_new1(&vmaster_mute_mode, hook); 2061 if (!kctl) 2062 return -ENOMEM; 2063 return snd_hda_ctl_add(codec, 0, kctl); 2064 } 2065 EXPORT_SYMBOL_GPL(snd_hda_add_vmaster_hook); 2066 2067 /** 2068 * snd_hda_sync_vmaster_hook - Sync vmaster hook 2069 * @hook: the vmaster hook 2070 * 2071 * Call the hook with the current value for synchronization. 2072 * Should be called in init callback. 2073 */ 2074 void snd_hda_sync_vmaster_hook(struct hda_vmaster_mute_hook *hook) 2075 { 2076 if (!hook->hook || !hook->codec) 2077 return; 2078 /* don't call vmaster hook in the destructor since it might have 2079 * been already destroyed 2080 */ 2081 if (hook->codec->bus->shutdown) 2082 return; 2083 snd_ctl_sync_vmaster_hook(hook->sw_kctl); 2084 } 2085 EXPORT_SYMBOL_GPL(snd_hda_sync_vmaster_hook); 2086 2087 2088 /** 2089 * snd_hda_mixer_amp_switch_info - Info callback for a standard AMP mixer switch 2090 * @kcontrol: referred ctl element 2091 * @uinfo: pointer to get/store the data 2092 * 2093 * The control element is supposed to have the private_value field 2094 * set up via HDA_COMPOSE_AMP_VAL*() or related macros. 2095 */ 2096 int snd_hda_mixer_amp_switch_info(struct snd_kcontrol *kcontrol, 2097 struct snd_ctl_elem_info *uinfo) 2098 { 2099 int chs = get_amp_channels(kcontrol); 2100 2101 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; 2102 uinfo->count = chs == 3 ? 2 : 1; 2103 uinfo->value.integer.min = 0; 2104 uinfo->value.integer.max = 1; 2105 return 0; 2106 } 2107 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_switch_info); 2108 2109 /** 2110 * snd_hda_mixer_amp_switch_get - Get callback for a standard AMP mixer switch 2111 * @kcontrol: ctl element 2112 * @ucontrol: pointer to get/store the data 2113 * 2114 * The control element is supposed to have the private_value field 2115 * set up via HDA_COMPOSE_AMP_VAL*() or related macros. 2116 */ 2117 int snd_hda_mixer_amp_switch_get(struct snd_kcontrol *kcontrol, 2118 struct snd_ctl_elem_value *ucontrol) 2119 { 2120 struct hda_codec *codec = snd_kcontrol_chip(kcontrol); 2121 hda_nid_t nid = get_amp_nid(kcontrol); 2122 int chs = get_amp_channels(kcontrol); 2123 int dir = get_amp_direction(kcontrol); 2124 int idx = get_amp_index(kcontrol); 2125 long *valp = ucontrol->value.integer.value; 2126 2127 if (chs & 1) 2128 *valp++ = (snd_hda_codec_amp_read(codec, nid, 0, dir, idx) & 2129 HDA_AMP_MUTE) ? 0 : 1; 2130 if (chs & 2) 2131 *valp = (snd_hda_codec_amp_read(codec, nid, 1, dir, idx) & 2132 HDA_AMP_MUTE) ? 0 : 1; 2133 return 0; 2134 } 2135 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_switch_get); 2136 2137 /** 2138 * snd_hda_mixer_amp_switch_put - Put callback for a standard AMP mixer switch 2139 * @kcontrol: ctl element 2140 * @ucontrol: pointer to get/store the data 2141 * 2142 * The control element is supposed to have the private_value field 2143 * set up via HDA_COMPOSE_AMP_VAL*() or related macros. 2144 */ 2145 int snd_hda_mixer_amp_switch_put(struct snd_kcontrol *kcontrol, 2146 struct snd_ctl_elem_value *ucontrol) 2147 { 2148 struct hda_codec *codec = snd_kcontrol_chip(kcontrol); 2149 hda_nid_t nid = get_amp_nid(kcontrol); 2150 int chs = get_amp_channels(kcontrol); 2151 int dir = get_amp_direction(kcontrol); 2152 int idx = get_amp_index(kcontrol); 2153 long *valp = ucontrol->value.integer.value; 2154 int change = 0; 2155 2156 if (chs & 1) { 2157 change = snd_hda_codec_amp_update(codec, nid, 0, dir, idx, 2158 HDA_AMP_MUTE, 2159 *valp ? 0 : HDA_AMP_MUTE); 2160 valp++; 2161 } 2162 if (chs & 2) 2163 change |= snd_hda_codec_amp_update(codec, nid, 1, dir, idx, 2164 HDA_AMP_MUTE, 2165 *valp ? 0 : HDA_AMP_MUTE); 2166 hda_call_check_power_status(codec, nid); 2167 return change; 2168 } 2169 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_switch_put); 2170 2171 /* 2172 * SPDIF out controls 2173 */ 2174 2175 static int snd_hda_spdif_mask_info(struct snd_kcontrol *kcontrol, 2176 struct snd_ctl_elem_info *uinfo) 2177 { 2178 uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958; 2179 uinfo->count = 1; 2180 return 0; 2181 } 2182 2183 static int snd_hda_spdif_cmask_get(struct snd_kcontrol *kcontrol, 2184 struct snd_ctl_elem_value *ucontrol) 2185 { 2186 ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL | 2187 IEC958_AES0_NONAUDIO | 2188 IEC958_AES0_CON_EMPHASIS_5015 | 2189 IEC958_AES0_CON_NOT_COPYRIGHT; 2190 ucontrol->value.iec958.status[1] = IEC958_AES1_CON_CATEGORY | 2191 IEC958_AES1_CON_ORIGINAL; 2192 return 0; 2193 } 2194 2195 static int snd_hda_spdif_pmask_get(struct snd_kcontrol *kcontrol, 2196 struct snd_ctl_elem_value *ucontrol) 2197 { 2198 ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL | 2199 IEC958_AES0_NONAUDIO | 2200 IEC958_AES0_PRO_EMPHASIS_5015; 2201 return 0; 2202 } 2203 2204 static int snd_hda_spdif_default_get(struct snd_kcontrol *kcontrol, 2205 struct snd_ctl_elem_value *ucontrol) 2206 { 2207 struct hda_codec *codec = snd_kcontrol_chip(kcontrol); 2208 int idx = kcontrol->private_value; 2209 struct hda_spdif_out *spdif; 2210 2211 if (WARN_ON(codec->spdif_out.used <= idx)) 2212 return -EINVAL; 2213 mutex_lock(&codec->spdif_mutex); 2214 spdif = snd_array_elem(&codec->spdif_out, idx); 2215 ucontrol->value.iec958.status[0] = spdif->status & 0xff; 2216 ucontrol->value.iec958.status[1] = (spdif->status >> 8) & 0xff; 2217 ucontrol->value.iec958.status[2] = (spdif->status >> 16) & 0xff; 2218 ucontrol->value.iec958.status[3] = (spdif->status >> 24) & 0xff; 2219 mutex_unlock(&codec->spdif_mutex); 2220 2221 return 0; 2222 } 2223 2224 /* convert from SPDIF status bits to HDA SPDIF bits 2225 * bit 0 (DigEn) is always set zero (to be filled later) 2226 */ 2227 static unsigned short convert_from_spdif_status(unsigned int sbits) 2228 { 2229 unsigned short val = 0; 2230 2231 if (sbits & IEC958_AES0_PROFESSIONAL) 2232 val |= AC_DIG1_PROFESSIONAL; 2233 if (sbits & IEC958_AES0_NONAUDIO) 2234 val |= AC_DIG1_NONAUDIO; 2235 if (sbits & IEC958_AES0_PROFESSIONAL) { 2236 if ((sbits & IEC958_AES0_PRO_EMPHASIS) == 2237 IEC958_AES0_PRO_EMPHASIS_5015) 2238 val |= AC_DIG1_EMPHASIS; 2239 } else { 2240 if ((sbits & IEC958_AES0_CON_EMPHASIS) == 2241 IEC958_AES0_CON_EMPHASIS_5015) 2242 val |= AC_DIG1_EMPHASIS; 2243 if (!(sbits & IEC958_AES0_CON_NOT_COPYRIGHT)) 2244 val |= AC_DIG1_COPYRIGHT; 2245 if (sbits & (IEC958_AES1_CON_ORIGINAL << 8)) 2246 val |= AC_DIG1_LEVEL; 2247 val |= sbits & (IEC958_AES1_CON_CATEGORY << 8); 2248 } 2249 return val; 2250 } 2251 2252 /* convert to SPDIF status bits from HDA SPDIF bits 2253 */ 2254 static unsigned int convert_to_spdif_status(unsigned short val) 2255 { 2256 unsigned int sbits = 0; 2257 2258 if (val & AC_DIG1_NONAUDIO) 2259 sbits |= IEC958_AES0_NONAUDIO; 2260 if (val & AC_DIG1_PROFESSIONAL) 2261 sbits |= IEC958_AES0_PROFESSIONAL; 2262 if (sbits & IEC958_AES0_PROFESSIONAL) { 2263 if (val & AC_DIG1_EMPHASIS) 2264 sbits |= IEC958_AES0_PRO_EMPHASIS_5015; 2265 } else { 2266 if (val & AC_DIG1_EMPHASIS) 2267 sbits |= IEC958_AES0_CON_EMPHASIS_5015; 2268 if (!(val & AC_DIG1_COPYRIGHT)) 2269 sbits |= IEC958_AES0_CON_NOT_COPYRIGHT; 2270 if (val & AC_DIG1_LEVEL) 2271 sbits |= (IEC958_AES1_CON_ORIGINAL << 8); 2272 sbits |= val & (0x7f << 8); 2273 } 2274 return sbits; 2275 } 2276 2277 /* set digital convert verbs both for the given NID and its slaves */ 2278 static void set_dig_out(struct hda_codec *codec, hda_nid_t nid, 2279 int mask, int val) 2280 { 2281 const hda_nid_t *d; 2282 2283 snd_hdac_regmap_update(&codec->core, nid, AC_VERB_SET_DIGI_CONVERT_1, 2284 mask, val); 2285 d = codec->slave_dig_outs; 2286 if (!d) 2287 return; 2288 for (; *d; d++) 2289 snd_hdac_regmap_update(&codec->core, *d, 2290 AC_VERB_SET_DIGI_CONVERT_1, mask, val); 2291 } 2292 2293 static inline void set_dig_out_convert(struct hda_codec *codec, hda_nid_t nid, 2294 int dig1, int dig2) 2295 { 2296 unsigned int mask = 0; 2297 unsigned int val = 0; 2298 2299 if (dig1 != -1) { 2300 mask |= 0xff; 2301 val = dig1; 2302 } 2303 if (dig2 != -1) { 2304 mask |= 0xff00; 2305 val |= dig2 << 8; 2306 } 2307 set_dig_out(codec, nid, mask, val); 2308 } 2309 2310 static int snd_hda_spdif_default_put(struct snd_kcontrol *kcontrol, 2311 struct snd_ctl_elem_value *ucontrol) 2312 { 2313 struct hda_codec *codec = snd_kcontrol_chip(kcontrol); 2314 int idx = kcontrol->private_value; 2315 struct hda_spdif_out *spdif; 2316 hda_nid_t nid; 2317 unsigned short val; 2318 int change; 2319 2320 if (WARN_ON(codec->spdif_out.used <= idx)) 2321 return -EINVAL; 2322 mutex_lock(&codec->spdif_mutex); 2323 spdif = snd_array_elem(&codec->spdif_out, idx); 2324 nid = spdif->nid; 2325 spdif->status = ucontrol->value.iec958.status[0] | 2326 ((unsigned int)ucontrol->value.iec958.status[1] << 8) | 2327 ((unsigned int)ucontrol->value.iec958.status[2] << 16) | 2328 ((unsigned int)ucontrol->value.iec958.status[3] << 24); 2329 val = convert_from_spdif_status(spdif->status); 2330 val |= spdif->ctls & 1; 2331 change = spdif->ctls != val; 2332 spdif->ctls = val; 2333 if (change && nid != (u16)-1) 2334 set_dig_out_convert(codec, nid, val & 0xff, (val >> 8) & 0xff); 2335 mutex_unlock(&codec->spdif_mutex); 2336 return change; 2337 } 2338 2339 #define snd_hda_spdif_out_switch_info snd_ctl_boolean_mono_info 2340 2341 static int snd_hda_spdif_out_switch_get(struct snd_kcontrol *kcontrol, 2342 struct snd_ctl_elem_value *ucontrol) 2343 { 2344 struct hda_codec *codec = snd_kcontrol_chip(kcontrol); 2345 int idx = kcontrol->private_value; 2346 struct hda_spdif_out *spdif; 2347 2348 if (WARN_ON(codec->spdif_out.used <= idx)) 2349 return -EINVAL; 2350 mutex_lock(&codec->spdif_mutex); 2351 spdif = snd_array_elem(&codec->spdif_out, idx); 2352 ucontrol->value.integer.value[0] = spdif->ctls & AC_DIG1_ENABLE; 2353 mutex_unlock(&codec->spdif_mutex); 2354 return 0; 2355 } 2356 2357 static inline void set_spdif_ctls(struct hda_codec *codec, hda_nid_t nid, 2358 int dig1, int dig2) 2359 { 2360 set_dig_out_convert(codec, nid, dig1, dig2); 2361 /* unmute amp switch (if any) */ 2362 if ((get_wcaps(codec, nid) & AC_WCAP_OUT_AMP) && 2363 (dig1 & AC_DIG1_ENABLE)) 2364 snd_hda_codec_amp_stereo(codec, nid, HDA_OUTPUT, 0, 2365 HDA_AMP_MUTE, 0); 2366 } 2367 2368 static int snd_hda_spdif_out_switch_put(struct snd_kcontrol *kcontrol, 2369 struct snd_ctl_elem_value *ucontrol) 2370 { 2371 struct hda_codec *codec = snd_kcontrol_chip(kcontrol); 2372 int idx = kcontrol->private_value; 2373 struct hda_spdif_out *spdif; 2374 hda_nid_t nid; 2375 unsigned short val; 2376 int change; 2377 2378 if (WARN_ON(codec->spdif_out.used <= idx)) 2379 return -EINVAL; 2380 mutex_lock(&codec->spdif_mutex); 2381 spdif = snd_array_elem(&codec->spdif_out, idx); 2382 nid = spdif->nid; 2383 val = spdif->ctls & ~AC_DIG1_ENABLE; 2384 if (ucontrol->value.integer.value[0]) 2385 val |= AC_DIG1_ENABLE; 2386 change = spdif->ctls != val; 2387 spdif->ctls = val; 2388 if (change && nid != (u16)-1) 2389 set_spdif_ctls(codec, nid, val & 0xff, -1); 2390 mutex_unlock(&codec->spdif_mutex); 2391 return change; 2392 } 2393 2394 static const struct snd_kcontrol_new dig_mixes[] = { 2395 { 2396 .access = SNDRV_CTL_ELEM_ACCESS_READ, 2397 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 2398 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, CON_MASK), 2399 .info = snd_hda_spdif_mask_info, 2400 .get = snd_hda_spdif_cmask_get, 2401 }, 2402 { 2403 .access = SNDRV_CTL_ELEM_ACCESS_READ, 2404 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 2405 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, PRO_MASK), 2406 .info = snd_hda_spdif_mask_info, 2407 .get = snd_hda_spdif_pmask_get, 2408 }, 2409 { 2410 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 2411 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT), 2412 .info = snd_hda_spdif_mask_info, 2413 .get = snd_hda_spdif_default_get, 2414 .put = snd_hda_spdif_default_put, 2415 }, 2416 { 2417 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 2418 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, SWITCH), 2419 .info = snd_hda_spdif_out_switch_info, 2420 .get = snd_hda_spdif_out_switch_get, 2421 .put = snd_hda_spdif_out_switch_put, 2422 }, 2423 { } /* end */ 2424 }; 2425 2426 /** 2427 * snd_hda_create_dig_out_ctls - create Output SPDIF-related controls 2428 * @codec: the HDA codec 2429 * @associated_nid: NID that new ctls associated with 2430 * @cvt_nid: converter NID 2431 * @type: HDA_PCM_TYPE_* 2432 * Creates controls related with the digital output. 2433 * Called from each patch supporting the digital out. 2434 * 2435 * Returns 0 if successful, or a negative error code. 2436 */ 2437 int snd_hda_create_dig_out_ctls(struct hda_codec *codec, 2438 hda_nid_t associated_nid, 2439 hda_nid_t cvt_nid, 2440 int type) 2441 { 2442 int err; 2443 struct snd_kcontrol *kctl; 2444 const struct snd_kcontrol_new *dig_mix; 2445 int idx = 0; 2446 int val = 0; 2447 const int spdif_index = 16; 2448 struct hda_spdif_out *spdif; 2449 struct hda_bus *bus = codec->bus; 2450 2451 if (bus->primary_dig_out_type == HDA_PCM_TYPE_HDMI && 2452 type == HDA_PCM_TYPE_SPDIF) { 2453 idx = spdif_index; 2454 } else if (bus->primary_dig_out_type == HDA_PCM_TYPE_SPDIF && 2455 type == HDA_PCM_TYPE_HDMI) { 2456 /* suppose a single SPDIF device */ 2457 for (dig_mix = dig_mixes; dig_mix->name; dig_mix++) { 2458 kctl = find_mixer_ctl(codec, dig_mix->name, 0, 0); 2459 if (!kctl) 2460 break; 2461 kctl->id.index = spdif_index; 2462 } 2463 bus->primary_dig_out_type = HDA_PCM_TYPE_HDMI; 2464 } 2465 if (!bus->primary_dig_out_type) 2466 bus->primary_dig_out_type = type; 2467 2468 idx = find_empty_mixer_ctl_idx(codec, "IEC958 Playback Switch", idx); 2469 if (idx < 0) { 2470 codec_err(codec, "too many IEC958 outputs\n"); 2471 return -EBUSY; 2472 } 2473 spdif = snd_array_new(&codec->spdif_out); 2474 if (!spdif) 2475 return -ENOMEM; 2476 for (dig_mix = dig_mixes; dig_mix->name; dig_mix++) { 2477 kctl = snd_ctl_new1(dig_mix, codec); 2478 if (!kctl) 2479 return -ENOMEM; 2480 kctl->id.index = idx; 2481 kctl->private_value = codec->spdif_out.used - 1; 2482 err = snd_hda_ctl_add(codec, associated_nid, kctl); 2483 if (err < 0) 2484 return err; 2485 } 2486 spdif->nid = cvt_nid; 2487 snd_hdac_regmap_read(&codec->core, cvt_nid, 2488 AC_VERB_GET_DIGI_CONVERT_1, &val); 2489 spdif->ctls = val; 2490 spdif->status = convert_to_spdif_status(spdif->ctls); 2491 return 0; 2492 } 2493 EXPORT_SYMBOL_GPL(snd_hda_create_dig_out_ctls); 2494 2495 /** 2496 * snd_hda_spdif_out_of_nid - get the hda_spdif_out entry from the given NID 2497 * @codec: the HDA codec 2498 * @nid: widget NID 2499 * 2500 * call within spdif_mutex lock 2501 */ 2502 struct hda_spdif_out *snd_hda_spdif_out_of_nid(struct hda_codec *codec, 2503 hda_nid_t nid) 2504 { 2505 struct hda_spdif_out *spdif; 2506 int i; 2507 2508 snd_array_for_each(&codec->spdif_out, i, spdif) { 2509 if (spdif->nid == nid) 2510 return spdif; 2511 } 2512 return NULL; 2513 } 2514 EXPORT_SYMBOL_GPL(snd_hda_spdif_out_of_nid); 2515 2516 /** 2517 * snd_hda_spdif_ctls_unassign - Unassign the given SPDIF ctl 2518 * @codec: the HDA codec 2519 * @idx: the SPDIF ctl index 2520 * 2521 * Unassign the widget from the given SPDIF control. 2522 */ 2523 void snd_hda_spdif_ctls_unassign(struct hda_codec *codec, int idx) 2524 { 2525 struct hda_spdif_out *spdif; 2526 2527 if (WARN_ON(codec->spdif_out.used <= idx)) 2528 return; 2529 mutex_lock(&codec->spdif_mutex); 2530 spdif = snd_array_elem(&codec->spdif_out, idx); 2531 spdif->nid = (u16)-1; 2532 mutex_unlock(&codec->spdif_mutex); 2533 } 2534 EXPORT_SYMBOL_GPL(snd_hda_spdif_ctls_unassign); 2535 2536 /** 2537 * snd_hda_spdif_ctls_assign - Assign the SPDIF controls to the given NID 2538 * @codec: the HDA codec 2539 * @idx: the SPDIF ctl idx 2540 * @nid: widget NID 2541 * 2542 * Assign the widget to the SPDIF control with the given index. 2543 */ 2544 void snd_hda_spdif_ctls_assign(struct hda_codec *codec, int idx, hda_nid_t nid) 2545 { 2546 struct hda_spdif_out *spdif; 2547 unsigned short val; 2548 2549 if (WARN_ON(codec->spdif_out.used <= idx)) 2550 return; 2551 mutex_lock(&codec->spdif_mutex); 2552 spdif = snd_array_elem(&codec->spdif_out, idx); 2553 if (spdif->nid != nid) { 2554 spdif->nid = nid; 2555 val = spdif->ctls; 2556 set_spdif_ctls(codec, nid, val & 0xff, (val >> 8) & 0xff); 2557 } 2558 mutex_unlock(&codec->spdif_mutex); 2559 } 2560 EXPORT_SYMBOL_GPL(snd_hda_spdif_ctls_assign); 2561 2562 /* 2563 * SPDIF sharing with analog output 2564 */ 2565 static int spdif_share_sw_get(struct snd_kcontrol *kcontrol, 2566 struct snd_ctl_elem_value *ucontrol) 2567 { 2568 struct hda_multi_out *mout = snd_kcontrol_chip(kcontrol); 2569 ucontrol->value.integer.value[0] = mout->share_spdif; 2570 return 0; 2571 } 2572 2573 static int spdif_share_sw_put(struct snd_kcontrol *kcontrol, 2574 struct snd_ctl_elem_value *ucontrol) 2575 { 2576 struct hda_multi_out *mout = snd_kcontrol_chip(kcontrol); 2577 mout->share_spdif = !!ucontrol->value.integer.value[0]; 2578 return 0; 2579 } 2580 2581 static const struct snd_kcontrol_new spdif_share_sw = { 2582 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 2583 .name = "IEC958 Default PCM Playback Switch", 2584 .info = snd_ctl_boolean_mono_info, 2585 .get = spdif_share_sw_get, 2586 .put = spdif_share_sw_put, 2587 }; 2588 2589 /** 2590 * snd_hda_create_spdif_share_sw - create Default PCM switch 2591 * @codec: the HDA codec 2592 * @mout: multi-out instance 2593 */ 2594 int snd_hda_create_spdif_share_sw(struct hda_codec *codec, 2595 struct hda_multi_out *mout) 2596 { 2597 struct snd_kcontrol *kctl; 2598 2599 if (!mout->dig_out_nid) 2600 return 0; 2601 2602 kctl = snd_ctl_new1(&spdif_share_sw, mout); 2603 if (!kctl) 2604 return -ENOMEM; 2605 /* ATTENTION: here mout is passed as private_data, instead of codec */ 2606 return snd_hda_ctl_add(codec, mout->dig_out_nid, kctl); 2607 } 2608 EXPORT_SYMBOL_GPL(snd_hda_create_spdif_share_sw); 2609 2610 /* 2611 * SPDIF input 2612 */ 2613 2614 #define snd_hda_spdif_in_switch_info snd_hda_spdif_out_switch_info 2615 2616 static int snd_hda_spdif_in_switch_get(struct snd_kcontrol *kcontrol, 2617 struct snd_ctl_elem_value *ucontrol) 2618 { 2619 struct hda_codec *codec = snd_kcontrol_chip(kcontrol); 2620 2621 ucontrol->value.integer.value[0] = codec->spdif_in_enable; 2622 return 0; 2623 } 2624 2625 static int snd_hda_spdif_in_switch_put(struct snd_kcontrol *kcontrol, 2626 struct snd_ctl_elem_value *ucontrol) 2627 { 2628 struct hda_codec *codec = snd_kcontrol_chip(kcontrol); 2629 hda_nid_t nid = kcontrol->private_value; 2630 unsigned int val = !!ucontrol->value.integer.value[0]; 2631 int change; 2632 2633 mutex_lock(&codec->spdif_mutex); 2634 change = codec->spdif_in_enable != val; 2635 if (change) { 2636 codec->spdif_in_enable = val; 2637 snd_hdac_regmap_write(&codec->core, nid, 2638 AC_VERB_SET_DIGI_CONVERT_1, val); 2639 } 2640 mutex_unlock(&codec->spdif_mutex); 2641 return change; 2642 } 2643 2644 static int snd_hda_spdif_in_status_get(struct snd_kcontrol *kcontrol, 2645 struct snd_ctl_elem_value *ucontrol) 2646 { 2647 struct hda_codec *codec = snd_kcontrol_chip(kcontrol); 2648 hda_nid_t nid = kcontrol->private_value; 2649 unsigned int val; 2650 unsigned int sbits; 2651 2652 snd_hdac_regmap_read(&codec->core, nid, 2653 AC_VERB_GET_DIGI_CONVERT_1, &val); 2654 sbits = convert_to_spdif_status(val); 2655 ucontrol->value.iec958.status[0] = sbits; 2656 ucontrol->value.iec958.status[1] = sbits >> 8; 2657 ucontrol->value.iec958.status[2] = sbits >> 16; 2658 ucontrol->value.iec958.status[3] = sbits >> 24; 2659 return 0; 2660 } 2661 2662 static const struct snd_kcontrol_new dig_in_ctls[] = { 2663 { 2664 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 2665 .name = SNDRV_CTL_NAME_IEC958("", CAPTURE, SWITCH), 2666 .info = snd_hda_spdif_in_switch_info, 2667 .get = snd_hda_spdif_in_switch_get, 2668 .put = snd_hda_spdif_in_switch_put, 2669 }, 2670 { 2671 .access = SNDRV_CTL_ELEM_ACCESS_READ, 2672 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 2673 .name = SNDRV_CTL_NAME_IEC958("", CAPTURE, DEFAULT), 2674 .info = snd_hda_spdif_mask_info, 2675 .get = snd_hda_spdif_in_status_get, 2676 }, 2677 { } /* end */ 2678 }; 2679 2680 /** 2681 * snd_hda_create_spdif_in_ctls - create Input SPDIF-related controls 2682 * @codec: the HDA codec 2683 * @nid: audio in widget NID 2684 * 2685 * Creates controls related with the SPDIF input. 2686 * Called from each patch supporting the SPDIF in. 2687 * 2688 * Returns 0 if successful, or a negative error code. 2689 */ 2690 int snd_hda_create_spdif_in_ctls(struct hda_codec *codec, hda_nid_t nid) 2691 { 2692 int err; 2693 struct snd_kcontrol *kctl; 2694 const struct snd_kcontrol_new *dig_mix; 2695 int idx; 2696 2697 idx = find_empty_mixer_ctl_idx(codec, "IEC958 Capture Switch", 0); 2698 if (idx < 0) { 2699 codec_err(codec, "too many IEC958 inputs\n"); 2700 return -EBUSY; 2701 } 2702 for (dig_mix = dig_in_ctls; dig_mix->name; dig_mix++) { 2703 kctl = snd_ctl_new1(dig_mix, codec); 2704 if (!kctl) 2705 return -ENOMEM; 2706 kctl->private_value = nid; 2707 err = snd_hda_ctl_add(codec, nid, kctl); 2708 if (err < 0) 2709 return err; 2710 } 2711 codec->spdif_in_enable = 2712 snd_hda_codec_read(codec, nid, 0, 2713 AC_VERB_GET_DIGI_CONVERT_1, 0) & 2714 AC_DIG1_ENABLE; 2715 return 0; 2716 } 2717 EXPORT_SYMBOL_GPL(snd_hda_create_spdif_in_ctls); 2718 2719 /** 2720 * snd_hda_codec_set_power_to_all - Set the power state to all widgets 2721 * @codec: the HDA codec 2722 * @fg: function group (not used now) 2723 * @power_state: the power state to set (AC_PWRST_*) 2724 * 2725 * Set the given power state to all widgets that have the power control. 2726 * If the codec has power_filter set, it evaluates the power state and 2727 * filter out if it's unchanged as D3. 2728 */ 2729 void snd_hda_codec_set_power_to_all(struct hda_codec *codec, hda_nid_t fg, 2730 unsigned int power_state) 2731 { 2732 hda_nid_t nid; 2733 2734 for_each_hda_codec_node(nid, codec) { 2735 unsigned int wcaps = get_wcaps(codec, nid); 2736 unsigned int state = power_state; 2737 if (!(wcaps & AC_WCAP_POWER)) 2738 continue; 2739 if (codec->power_filter) { 2740 state = codec->power_filter(codec, nid, power_state); 2741 if (state != power_state && power_state == AC_PWRST_D3) 2742 continue; 2743 } 2744 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_POWER_STATE, 2745 state); 2746 } 2747 } 2748 EXPORT_SYMBOL_GPL(snd_hda_codec_set_power_to_all); 2749 2750 /** 2751 * snd_hda_codec_eapd_power_filter - A power filter callback for EAPD 2752 * @codec: the HDA codec 2753 * @nid: widget NID 2754 * @power_state: power state to evalue 2755 * 2756 * Don't power down the widget if it controls eapd and EAPD_BTLENABLE is set. 2757 * This can be used a codec power_filter callback. 2758 */ 2759 unsigned int snd_hda_codec_eapd_power_filter(struct hda_codec *codec, 2760 hda_nid_t nid, 2761 unsigned int power_state) 2762 { 2763 if (nid == codec->core.afg || nid == codec->core.mfg) 2764 return power_state; 2765 if (power_state == AC_PWRST_D3 && 2766 get_wcaps_type(get_wcaps(codec, nid)) == AC_WID_PIN && 2767 (snd_hda_query_pin_caps(codec, nid) & AC_PINCAP_EAPD)) { 2768 int eapd = snd_hda_codec_read(codec, nid, 0, 2769 AC_VERB_GET_EAPD_BTLENABLE, 0); 2770 if (eapd & 0x02) 2771 return AC_PWRST_D0; 2772 } 2773 return power_state; 2774 } 2775 EXPORT_SYMBOL_GPL(snd_hda_codec_eapd_power_filter); 2776 2777 /* 2778 * set power state of the codec, and return the power state 2779 */ 2780 static unsigned int hda_set_power_state(struct hda_codec *codec, 2781 unsigned int power_state) 2782 { 2783 hda_nid_t fg = codec->core.afg ? codec->core.afg : codec->core.mfg; 2784 int count; 2785 unsigned int state; 2786 int flags = 0; 2787 2788 /* this delay seems necessary to avoid click noise at power-down */ 2789 if (power_state == AC_PWRST_D3) { 2790 if (codec->depop_delay < 0) 2791 msleep(codec_has_epss(codec) ? 10 : 100); 2792 else if (codec->depop_delay > 0) 2793 msleep(codec->depop_delay); 2794 flags = HDA_RW_NO_RESPONSE_FALLBACK; 2795 } 2796 2797 /* repeat power states setting at most 10 times*/ 2798 for (count = 0; count < 10; count++) { 2799 if (codec->patch_ops.set_power_state) 2800 codec->patch_ops.set_power_state(codec, fg, 2801 power_state); 2802 else { 2803 state = power_state; 2804 if (codec->power_filter) 2805 state = codec->power_filter(codec, fg, state); 2806 if (state == power_state || power_state != AC_PWRST_D3) 2807 snd_hda_codec_read(codec, fg, flags, 2808 AC_VERB_SET_POWER_STATE, 2809 state); 2810 snd_hda_codec_set_power_to_all(codec, fg, power_state); 2811 } 2812 state = snd_hda_sync_power_state(codec, fg, power_state); 2813 if (!(state & AC_PWRST_ERROR)) 2814 break; 2815 } 2816 2817 return state; 2818 } 2819 2820 /* sync power states of all widgets; 2821 * this is called at the end of codec parsing 2822 */ 2823 static void sync_power_up_states(struct hda_codec *codec) 2824 { 2825 hda_nid_t nid; 2826 2827 /* don't care if no filter is used */ 2828 if (!codec->power_filter) 2829 return; 2830 2831 for_each_hda_codec_node(nid, codec) { 2832 unsigned int wcaps = get_wcaps(codec, nid); 2833 unsigned int target; 2834 if (!(wcaps & AC_WCAP_POWER)) 2835 continue; 2836 target = codec->power_filter(codec, nid, AC_PWRST_D0); 2837 if (target == AC_PWRST_D0) 2838 continue; 2839 if (!snd_hda_check_power_state(codec, nid, target)) 2840 snd_hda_codec_write(codec, nid, 0, 2841 AC_VERB_SET_POWER_STATE, target); 2842 } 2843 } 2844 2845 #ifdef CONFIG_SND_HDA_RECONFIG 2846 /* execute additional init verbs */ 2847 static void hda_exec_init_verbs(struct hda_codec *codec) 2848 { 2849 if (codec->init_verbs.list) 2850 snd_hda_sequence_write(codec, codec->init_verbs.list); 2851 } 2852 #else 2853 static inline void hda_exec_init_verbs(struct hda_codec *codec) {} 2854 #endif 2855 2856 #ifdef CONFIG_PM 2857 /* update the power on/off account with the current jiffies */ 2858 static void update_power_acct(struct hda_codec *codec, bool on) 2859 { 2860 unsigned long delta = jiffies - codec->power_jiffies; 2861 2862 if (on) 2863 codec->power_on_acct += delta; 2864 else 2865 codec->power_off_acct += delta; 2866 codec->power_jiffies += delta; 2867 } 2868 2869 void snd_hda_update_power_acct(struct hda_codec *codec) 2870 { 2871 update_power_acct(codec, hda_codec_is_power_on(codec)); 2872 } 2873 2874 /* 2875 * call suspend and power-down; used both from PM and power-save 2876 * this function returns the power state in the end 2877 */ 2878 static unsigned int hda_call_codec_suspend(struct hda_codec *codec) 2879 { 2880 unsigned int state; 2881 2882 snd_hdac_enter_pm(&codec->core); 2883 if (codec->patch_ops.suspend) 2884 codec->patch_ops.suspend(codec); 2885 hda_cleanup_all_streams(codec); 2886 state = hda_set_power_state(codec, AC_PWRST_D3); 2887 update_power_acct(codec, true); 2888 snd_hdac_leave_pm(&codec->core); 2889 return state; 2890 } 2891 2892 /* 2893 * kick up codec; used both from PM and power-save 2894 */ 2895 static void hda_call_codec_resume(struct hda_codec *codec) 2896 { 2897 snd_hdac_enter_pm(&codec->core); 2898 if (codec->core.regmap) 2899 regcache_mark_dirty(codec->core.regmap); 2900 2901 codec->power_jiffies = jiffies; 2902 2903 hda_set_power_state(codec, AC_PWRST_D0); 2904 restore_shutup_pins(codec); 2905 hda_exec_init_verbs(codec); 2906 snd_hda_jack_set_dirty_all(codec); 2907 if (codec->patch_ops.resume) 2908 codec->patch_ops.resume(codec); 2909 else { 2910 if (codec->patch_ops.init) 2911 codec->patch_ops.init(codec); 2912 snd_hda_regmap_sync(codec); 2913 } 2914 2915 if (codec->jackpoll_interval) 2916 hda_jackpoll_work(&codec->jackpoll_work.work); 2917 else 2918 snd_hda_jack_report_sync(codec); 2919 codec->core.dev.power.power_state = PMSG_ON; 2920 snd_hdac_leave_pm(&codec->core); 2921 } 2922 2923 static int hda_codec_runtime_suspend(struct device *dev) 2924 { 2925 struct hda_codec *codec = dev_to_hda_codec(dev); 2926 unsigned int state; 2927 2928 cancel_delayed_work_sync(&codec->jackpoll_work); 2929 state = hda_call_codec_suspend(codec); 2930 if (codec->link_down_at_suspend || 2931 (codec_has_clkstop(codec) && codec_has_epss(codec) && 2932 (state & AC_PWRST_CLK_STOP_OK))) 2933 snd_hdac_codec_link_down(&codec->core); 2934 codec_display_power(codec, false); 2935 return 0; 2936 } 2937 2938 static int hda_codec_runtime_resume(struct device *dev) 2939 { 2940 struct hda_codec *codec = dev_to_hda_codec(dev); 2941 2942 codec_display_power(codec, true); 2943 snd_hdac_codec_link_up(&codec->core); 2944 hda_call_codec_resume(codec); 2945 pm_runtime_mark_last_busy(dev); 2946 return 0; 2947 } 2948 #endif /* CONFIG_PM */ 2949 2950 #ifdef CONFIG_PM_SLEEP 2951 static int hda_codec_force_resume(struct device *dev) 2952 { 2953 struct hda_codec *codec = dev_to_hda_codec(dev); 2954 bool forced_resume = !codec->relaxed_resume && codec->jacktbl.used; 2955 int ret; 2956 2957 /* The get/put pair below enforces the runtime resume even if the 2958 * device hasn't been used at suspend time. This trick is needed to 2959 * update the jack state change during the sleep. 2960 */ 2961 if (forced_resume) 2962 pm_runtime_get_noresume(dev); 2963 ret = pm_runtime_force_resume(dev); 2964 if (forced_resume) 2965 pm_runtime_put(dev); 2966 return ret; 2967 } 2968 2969 static int hda_codec_pm_suspend(struct device *dev) 2970 { 2971 dev->power.power_state = PMSG_SUSPEND; 2972 return pm_runtime_force_suspend(dev); 2973 } 2974 2975 static int hda_codec_pm_resume(struct device *dev) 2976 { 2977 dev->power.power_state = PMSG_RESUME; 2978 return hda_codec_force_resume(dev); 2979 } 2980 2981 static int hda_codec_pm_freeze(struct device *dev) 2982 { 2983 dev->power.power_state = PMSG_FREEZE; 2984 return pm_runtime_force_suspend(dev); 2985 } 2986 2987 static int hda_codec_pm_thaw(struct device *dev) 2988 { 2989 dev->power.power_state = PMSG_THAW; 2990 return hda_codec_force_resume(dev); 2991 } 2992 2993 static int hda_codec_pm_restore(struct device *dev) 2994 { 2995 dev->power.power_state = PMSG_RESTORE; 2996 return hda_codec_force_resume(dev); 2997 } 2998 #endif /* CONFIG_PM_SLEEP */ 2999 3000 /* referred in hda_bind.c */ 3001 const struct dev_pm_ops hda_codec_driver_pm = { 3002 #ifdef CONFIG_PM_SLEEP 3003 .suspend = hda_codec_pm_suspend, 3004 .resume = hda_codec_pm_resume, 3005 .freeze = hda_codec_pm_freeze, 3006 .thaw = hda_codec_pm_thaw, 3007 .poweroff = hda_codec_pm_suspend, 3008 .restore = hda_codec_pm_restore, 3009 #endif /* CONFIG_PM_SLEEP */ 3010 SET_RUNTIME_PM_OPS(hda_codec_runtime_suspend, hda_codec_runtime_resume, 3011 NULL) 3012 }; 3013 3014 /* 3015 * add standard channel maps if not specified 3016 */ 3017 static int add_std_chmaps(struct hda_codec *codec) 3018 { 3019 struct hda_pcm *pcm; 3020 int str, err; 3021 3022 list_for_each_entry(pcm, &codec->pcm_list_head, list) { 3023 for (str = 0; str < 2; str++) { 3024 struct hda_pcm_stream *hinfo = &pcm->stream[str]; 3025 struct snd_pcm_chmap *chmap; 3026 const struct snd_pcm_chmap_elem *elem; 3027 3028 if (!pcm->pcm || pcm->own_chmap || !hinfo->substreams) 3029 continue; 3030 elem = hinfo->chmap ? hinfo->chmap : snd_pcm_std_chmaps; 3031 err = snd_pcm_add_chmap_ctls(pcm->pcm, str, elem, 3032 hinfo->channels_max, 3033 0, &chmap); 3034 if (err < 0) 3035 return err; 3036 chmap->channel_mask = SND_PCM_CHMAP_MASK_2468; 3037 } 3038 } 3039 return 0; 3040 } 3041 3042 /* default channel maps for 2.1 speakers; 3043 * since HD-audio supports only stereo, odd number channels are omitted 3044 */ 3045 const struct snd_pcm_chmap_elem snd_pcm_2_1_chmaps[] = { 3046 { .channels = 2, 3047 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR } }, 3048 { .channels = 4, 3049 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, 3050 SNDRV_CHMAP_LFE, SNDRV_CHMAP_LFE } }, 3051 { } 3052 }; 3053 EXPORT_SYMBOL_GPL(snd_pcm_2_1_chmaps); 3054 3055 int snd_hda_codec_build_controls(struct hda_codec *codec) 3056 { 3057 int err = 0; 3058 hda_exec_init_verbs(codec); 3059 /* continue to initialize... */ 3060 if (codec->patch_ops.init) 3061 err = codec->patch_ops.init(codec); 3062 if (!err && codec->patch_ops.build_controls) 3063 err = codec->patch_ops.build_controls(codec); 3064 if (err < 0) 3065 return err; 3066 3067 /* we create chmaps here instead of build_pcms */ 3068 err = add_std_chmaps(codec); 3069 if (err < 0) 3070 return err; 3071 3072 if (codec->jackpoll_interval) 3073 hda_jackpoll_work(&codec->jackpoll_work.work); 3074 else 3075 snd_hda_jack_report_sync(codec); /* call at the last init point */ 3076 sync_power_up_states(codec); 3077 return 0; 3078 } 3079 EXPORT_SYMBOL_GPL(snd_hda_codec_build_controls); 3080 3081 /* 3082 * PCM stuff 3083 */ 3084 static int hda_pcm_default_open_close(struct hda_pcm_stream *hinfo, 3085 struct hda_codec *codec, 3086 struct snd_pcm_substream *substream) 3087 { 3088 return 0; 3089 } 3090 3091 static int hda_pcm_default_prepare(struct hda_pcm_stream *hinfo, 3092 struct hda_codec *codec, 3093 unsigned int stream_tag, 3094 unsigned int format, 3095 struct snd_pcm_substream *substream) 3096 { 3097 snd_hda_codec_setup_stream(codec, hinfo->nid, stream_tag, 0, format); 3098 return 0; 3099 } 3100 3101 static int hda_pcm_default_cleanup(struct hda_pcm_stream *hinfo, 3102 struct hda_codec *codec, 3103 struct snd_pcm_substream *substream) 3104 { 3105 snd_hda_codec_cleanup_stream(codec, hinfo->nid); 3106 return 0; 3107 } 3108 3109 static int set_pcm_default_values(struct hda_codec *codec, 3110 struct hda_pcm_stream *info) 3111 { 3112 int err; 3113 3114 /* query support PCM information from the given NID */ 3115 if (info->nid && (!info->rates || !info->formats)) { 3116 err = snd_hda_query_supported_pcm(codec, info->nid, 3117 info->rates ? NULL : &info->rates, 3118 info->formats ? NULL : &info->formats, 3119 info->maxbps ? NULL : &info->maxbps); 3120 if (err < 0) 3121 return err; 3122 } 3123 if (info->ops.open == NULL) 3124 info->ops.open = hda_pcm_default_open_close; 3125 if (info->ops.close == NULL) 3126 info->ops.close = hda_pcm_default_open_close; 3127 if (info->ops.prepare == NULL) { 3128 if (snd_BUG_ON(!info->nid)) 3129 return -EINVAL; 3130 info->ops.prepare = hda_pcm_default_prepare; 3131 } 3132 if (info->ops.cleanup == NULL) { 3133 if (snd_BUG_ON(!info->nid)) 3134 return -EINVAL; 3135 info->ops.cleanup = hda_pcm_default_cleanup; 3136 } 3137 return 0; 3138 } 3139 3140 /* 3141 * codec prepare/cleanup entries 3142 */ 3143 /** 3144 * snd_hda_codec_prepare - Prepare a stream 3145 * @codec: the HDA codec 3146 * @hinfo: PCM information 3147 * @stream: stream tag to assign 3148 * @format: format id to assign 3149 * @substream: PCM substream to assign 3150 * 3151 * Calls the prepare callback set by the codec with the given arguments. 3152 * Clean up the inactive streams when successful. 3153 */ 3154 int snd_hda_codec_prepare(struct hda_codec *codec, 3155 struct hda_pcm_stream *hinfo, 3156 unsigned int stream, 3157 unsigned int format, 3158 struct snd_pcm_substream *substream) 3159 { 3160 int ret; 3161 mutex_lock(&codec->bus->prepare_mutex); 3162 if (hinfo->ops.prepare) 3163 ret = hinfo->ops.prepare(hinfo, codec, stream, format, 3164 substream); 3165 else 3166 ret = -ENODEV; 3167 if (ret >= 0) 3168 purify_inactive_streams(codec); 3169 mutex_unlock(&codec->bus->prepare_mutex); 3170 return ret; 3171 } 3172 EXPORT_SYMBOL_GPL(snd_hda_codec_prepare); 3173 3174 /** 3175 * snd_hda_codec_cleanup - Prepare a stream 3176 * @codec: the HDA codec 3177 * @hinfo: PCM information 3178 * @substream: PCM substream 3179 * 3180 * Calls the cleanup callback set by the codec with the given arguments. 3181 */ 3182 void snd_hda_codec_cleanup(struct hda_codec *codec, 3183 struct hda_pcm_stream *hinfo, 3184 struct snd_pcm_substream *substream) 3185 { 3186 mutex_lock(&codec->bus->prepare_mutex); 3187 if (hinfo->ops.cleanup) 3188 hinfo->ops.cleanup(hinfo, codec, substream); 3189 mutex_unlock(&codec->bus->prepare_mutex); 3190 } 3191 EXPORT_SYMBOL_GPL(snd_hda_codec_cleanup); 3192 3193 /* global */ 3194 const char *snd_hda_pcm_type_name[HDA_PCM_NTYPES] = { 3195 "Audio", "SPDIF", "HDMI", "Modem" 3196 }; 3197 3198 /* 3199 * get the empty PCM device number to assign 3200 */ 3201 static int get_empty_pcm_device(struct hda_bus *bus, unsigned int type) 3202 { 3203 /* audio device indices; not linear to keep compatibility */ 3204 /* assigned to static slots up to dev#10; if more needed, assign 3205 * the later slot dynamically (when CONFIG_SND_DYNAMIC_MINORS=y) 3206 */ 3207 static const int audio_idx[HDA_PCM_NTYPES][5] = { 3208 [HDA_PCM_TYPE_AUDIO] = { 0, 2, 4, 5, -1 }, 3209 [HDA_PCM_TYPE_SPDIF] = { 1, -1 }, 3210 [HDA_PCM_TYPE_HDMI] = { 3, 7, 8, 9, -1 }, 3211 [HDA_PCM_TYPE_MODEM] = { 6, -1 }, 3212 }; 3213 int i; 3214 3215 if (type >= HDA_PCM_NTYPES) { 3216 dev_err(bus->card->dev, "Invalid PCM type %d\n", type); 3217 return -EINVAL; 3218 } 3219 3220 for (i = 0; audio_idx[type][i] >= 0; i++) { 3221 #ifndef CONFIG_SND_DYNAMIC_MINORS 3222 if (audio_idx[type][i] >= 8) 3223 break; 3224 #endif 3225 if (!test_and_set_bit(audio_idx[type][i], bus->pcm_dev_bits)) 3226 return audio_idx[type][i]; 3227 } 3228 3229 #ifdef CONFIG_SND_DYNAMIC_MINORS 3230 /* non-fixed slots starting from 10 */ 3231 for (i = 10; i < 32; i++) { 3232 if (!test_and_set_bit(i, bus->pcm_dev_bits)) 3233 return i; 3234 } 3235 #endif 3236 3237 dev_warn(bus->card->dev, "Too many %s devices\n", 3238 snd_hda_pcm_type_name[type]); 3239 #ifndef CONFIG_SND_DYNAMIC_MINORS 3240 dev_warn(bus->card->dev, 3241 "Consider building the kernel with CONFIG_SND_DYNAMIC_MINORS=y\n"); 3242 #endif 3243 return -EAGAIN; 3244 } 3245 3246 /* call build_pcms ops of the given codec and set up the default parameters */ 3247 int snd_hda_codec_parse_pcms(struct hda_codec *codec) 3248 { 3249 struct hda_pcm *cpcm; 3250 int err; 3251 3252 if (!list_empty(&codec->pcm_list_head)) 3253 return 0; /* already parsed */ 3254 3255 if (!codec->patch_ops.build_pcms) 3256 return 0; 3257 3258 err = codec->patch_ops.build_pcms(codec); 3259 if (err < 0) { 3260 codec_err(codec, "cannot build PCMs for #%d (error %d)\n", 3261 codec->core.addr, err); 3262 return err; 3263 } 3264 3265 list_for_each_entry(cpcm, &codec->pcm_list_head, list) { 3266 int stream; 3267 3268 for (stream = 0; stream < 2; stream++) { 3269 struct hda_pcm_stream *info = &cpcm->stream[stream]; 3270 3271 if (!info->substreams) 3272 continue; 3273 err = set_pcm_default_values(codec, info); 3274 if (err < 0) { 3275 codec_warn(codec, 3276 "fail to setup default for PCM %s\n", 3277 cpcm->name); 3278 return err; 3279 } 3280 } 3281 } 3282 3283 return 0; 3284 } 3285 EXPORT_SYMBOL_GPL(snd_hda_codec_parse_pcms); 3286 3287 /* assign all PCMs of the given codec */ 3288 int snd_hda_codec_build_pcms(struct hda_codec *codec) 3289 { 3290 struct hda_bus *bus = codec->bus; 3291 struct hda_pcm *cpcm; 3292 int dev, err; 3293 3294 err = snd_hda_codec_parse_pcms(codec); 3295 if (err < 0) 3296 return err; 3297 3298 /* attach a new PCM streams */ 3299 list_for_each_entry(cpcm, &codec->pcm_list_head, list) { 3300 if (cpcm->pcm) 3301 continue; /* already attached */ 3302 if (!cpcm->stream[0].substreams && !cpcm->stream[1].substreams) 3303 continue; /* no substreams assigned */ 3304 3305 dev = get_empty_pcm_device(bus, cpcm->pcm_type); 3306 if (dev < 0) { 3307 cpcm->device = SNDRV_PCM_INVALID_DEVICE; 3308 continue; /* no fatal error */ 3309 } 3310 cpcm->device = dev; 3311 err = snd_hda_attach_pcm_stream(bus, codec, cpcm); 3312 if (err < 0) { 3313 codec_err(codec, 3314 "cannot attach PCM stream %d for codec #%d\n", 3315 dev, codec->core.addr); 3316 continue; /* no fatal error */ 3317 } 3318 } 3319 3320 return 0; 3321 } 3322 3323 /** 3324 * snd_hda_add_new_ctls - create controls from the array 3325 * @codec: the HDA codec 3326 * @knew: the array of struct snd_kcontrol_new 3327 * 3328 * This helper function creates and add new controls in the given array. 3329 * The array must be terminated with an empty entry as terminator. 3330 * 3331 * Returns 0 if successful, or a negative error code. 3332 */ 3333 int snd_hda_add_new_ctls(struct hda_codec *codec, 3334 const struct snd_kcontrol_new *knew) 3335 { 3336 int err; 3337 3338 for (; knew->name; knew++) { 3339 struct snd_kcontrol *kctl; 3340 int addr = 0, idx = 0; 3341 if (knew->iface == (__force snd_ctl_elem_iface_t)-1) 3342 continue; /* skip this codec private value */ 3343 for (;;) { 3344 kctl = snd_ctl_new1(knew, codec); 3345 if (!kctl) 3346 return -ENOMEM; 3347 if (addr > 0) 3348 kctl->id.device = addr; 3349 if (idx > 0) 3350 kctl->id.index = idx; 3351 err = snd_hda_ctl_add(codec, 0, kctl); 3352 if (!err) 3353 break; 3354 /* try first with another device index corresponding to 3355 * the codec addr; if it still fails (or it's the 3356 * primary codec), then try another control index 3357 */ 3358 if (!addr && codec->core.addr) 3359 addr = codec->core.addr; 3360 else if (!idx && !knew->index) { 3361 idx = find_empty_mixer_ctl_idx(codec, 3362 knew->name, 0); 3363 if (idx <= 0) 3364 return err; 3365 } else 3366 return err; 3367 } 3368 } 3369 return 0; 3370 } 3371 EXPORT_SYMBOL_GPL(snd_hda_add_new_ctls); 3372 3373 #ifdef CONFIG_PM 3374 static void codec_set_power_save(struct hda_codec *codec, int delay) 3375 { 3376 struct device *dev = hda_codec_dev(codec); 3377 3378 if (delay == 0 && codec->auto_runtime_pm) 3379 delay = 3000; 3380 3381 if (delay > 0) { 3382 pm_runtime_set_autosuspend_delay(dev, delay); 3383 pm_runtime_use_autosuspend(dev); 3384 pm_runtime_allow(dev); 3385 if (!pm_runtime_suspended(dev)) 3386 pm_runtime_mark_last_busy(dev); 3387 } else { 3388 pm_runtime_dont_use_autosuspend(dev); 3389 pm_runtime_forbid(dev); 3390 } 3391 } 3392 3393 /** 3394 * snd_hda_set_power_save - reprogram autosuspend for the given delay 3395 * @bus: HD-audio bus 3396 * @delay: autosuspend delay in msec, 0 = off 3397 * 3398 * Synchronize the runtime PM autosuspend state from the power_save option. 3399 */ 3400 void snd_hda_set_power_save(struct hda_bus *bus, int delay) 3401 { 3402 struct hda_codec *c; 3403 3404 list_for_each_codec(c, bus) 3405 codec_set_power_save(c, delay); 3406 } 3407 EXPORT_SYMBOL_GPL(snd_hda_set_power_save); 3408 3409 /** 3410 * snd_hda_check_amp_list_power - Check the amp list and update the power 3411 * @codec: HD-audio codec 3412 * @check: the object containing an AMP list and the status 3413 * @nid: NID to check / update 3414 * 3415 * Check whether the given NID is in the amp list. If it's in the list, 3416 * check the current AMP status, and update the the power-status according 3417 * to the mute status. 3418 * 3419 * This function is supposed to be set or called from the check_power_status 3420 * patch ops. 3421 */ 3422 int snd_hda_check_amp_list_power(struct hda_codec *codec, 3423 struct hda_loopback_check *check, 3424 hda_nid_t nid) 3425 { 3426 const struct hda_amp_list *p; 3427 int ch, v; 3428 3429 if (!check->amplist) 3430 return 0; 3431 for (p = check->amplist; p->nid; p++) { 3432 if (p->nid == nid) 3433 break; 3434 } 3435 if (!p->nid) 3436 return 0; /* nothing changed */ 3437 3438 for (p = check->amplist; p->nid; p++) { 3439 for (ch = 0; ch < 2; ch++) { 3440 v = snd_hda_codec_amp_read(codec, p->nid, ch, p->dir, 3441 p->idx); 3442 if (!(v & HDA_AMP_MUTE) && v > 0) { 3443 if (!check->power_on) { 3444 check->power_on = 1; 3445 snd_hda_power_up_pm(codec); 3446 } 3447 return 1; 3448 } 3449 } 3450 } 3451 if (check->power_on) { 3452 check->power_on = 0; 3453 snd_hda_power_down_pm(codec); 3454 } 3455 return 0; 3456 } 3457 EXPORT_SYMBOL_GPL(snd_hda_check_amp_list_power); 3458 #endif 3459 3460 /* 3461 * input MUX helper 3462 */ 3463 3464 /** 3465 * snd_hda_input_mux_info_info - Info callback helper for the input-mux enum 3466 * @imux: imux helper object 3467 * @uinfo: pointer to get/store the data 3468 */ 3469 int snd_hda_input_mux_info(const struct hda_input_mux *imux, 3470 struct snd_ctl_elem_info *uinfo) 3471 { 3472 unsigned int index; 3473 3474 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; 3475 uinfo->count = 1; 3476 uinfo->value.enumerated.items = imux->num_items; 3477 if (!imux->num_items) 3478 return 0; 3479 index = uinfo->value.enumerated.item; 3480 if (index >= imux->num_items) 3481 index = imux->num_items - 1; 3482 strcpy(uinfo->value.enumerated.name, imux->items[index].label); 3483 return 0; 3484 } 3485 EXPORT_SYMBOL_GPL(snd_hda_input_mux_info); 3486 3487 /** 3488 * snd_hda_input_mux_info_put - Put callback helper for the input-mux enum 3489 * @codec: the HDA codec 3490 * @imux: imux helper object 3491 * @ucontrol: pointer to get/store the data 3492 * @nid: input mux NID 3493 * @cur_val: pointer to get/store the current imux value 3494 */ 3495 int snd_hda_input_mux_put(struct hda_codec *codec, 3496 const struct hda_input_mux *imux, 3497 struct snd_ctl_elem_value *ucontrol, 3498 hda_nid_t nid, 3499 unsigned int *cur_val) 3500 { 3501 unsigned int idx; 3502 3503 if (!imux->num_items) 3504 return 0; 3505 idx = ucontrol->value.enumerated.item[0]; 3506 if (idx >= imux->num_items) 3507 idx = imux->num_items - 1; 3508 if (*cur_val == idx) 3509 return 0; 3510 snd_hda_codec_write_cache(codec, nid, 0, AC_VERB_SET_CONNECT_SEL, 3511 imux->items[idx].index); 3512 *cur_val = idx; 3513 return 1; 3514 } 3515 EXPORT_SYMBOL_GPL(snd_hda_input_mux_put); 3516 3517 3518 /** 3519 * snd_hda_enum_helper_info - Helper for simple enum ctls 3520 * @kcontrol: ctl element 3521 * @uinfo: pointer to get/store the data 3522 * @num_items: number of enum items 3523 * @texts: enum item string array 3524 * 3525 * process kcontrol info callback of a simple string enum array 3526 * when @num_items is 0 or @texts is NULL, assume a boolean enum array 3527 */ 3528 int snd_hda_enum_helper_info(struct snd_kcontrol *kcontrol, 3529 struct snd_ctl_elem_info *uinfo, 3530 int num_items, const char * const *texts) 3531 { 3532 static const char * const texts_default[] = { 3533 "Disabled", "Enabled" 3534 }; 3535 3536 if (!texts || !num_items) { 3537 num_items = 2; 3538 texts = texts_default; 3539 } 3540 3541 return snd_ctl_enum_info(uinfo, 1, num_items, texts); 3542 } 3543 EXPORT_SYMBOL_GPL(snd_hda_enum_helper_info); 3544 3545 /* 3546 * Multi-channel / digital-out PCM helper functions 3547 */ 3548 3549 /* setup SPDIF output stream */ 3550 static void setup_dig_out_stream(struct hda_codec *codec, hda_nid_t nid, 3551 unsigned int stream_tag, unsigned int format) 3552 { 3553 struct hda_spdif_out *spdif; 3554 unsigned int curr_fmt; 3555 bool reset; 3556 3557 spdif = snd_hda_spdif_out_of_nid(codec, nid); 3558 /* Add sanity check to pass klockwork check. 3559 * This should never happen. 3560 */ 3561 if (WARN_ON(spdif == NULL)) 3562 return; 3563 3564 curr_fmt = snd_hda_codec_read(codec, nid, 0, 3565 AC_VERB_GET_STREAM_FORMAT, 0); 3566 reset = codec->spdif_status_reset && 3567 (spdif->ctls & AC_DIG1_ENABLE) && 3568 curr_fmt != format; 3569 3570 /* turn off SPDIF if needed; otherwise the IEC958 bits won't be 3571 updated */ 3572 if (reset) 3573 set_dig_out_convert(codec, nid, 3574 spdif->ctls & ~AC_DIG1_ENABLE & 0xff, 3575 -1); 3576 snd_hda_codec_setup_stream(codec, nid, stream_tag, 0, format); 3577 if (codec->slave_dig_outs) { 3578 const hda_nid_t *d; 3579 for (d = codec->slave_dig_outs; *d; d++) 3580 snd_hda_codec_setup_stream(codec, *d, stream_tag, 0, 3581 format); 3582 } 3583 /* turn on again (if needed) */ 3584 if (reset) 3585 set_dig_out_convert(codec, nid, 3586 spdif->ctls & 0xff, -1); 3587 } 3588 3589 static void cleanup_dig_out_stream(struct hda_codec *codec, hda_nid_t nid) 3590 { 3591 snd_hda_codec_cleanup_stream(codec, nid); 3592 if (codec->slave_dig_outs) { 3593 const hda_nid_t *d; 3594 for (d = codec->slave_dig_outs; *d; d++) 3595 snd_hda_codec_cleanup_stream(codec, *d); 3596 } 3597 } 3598 3599 /** 3600 * snd_hda_multi_out_dig_open - open the digital out in the exclusive mode 3601 * @codec: the HDA codec 3602 * @mout: hda_multi_out object 3603 */ 3604 int snd_hda_multi_out_dig_open(struct hda_codec *codec, 3605 struct hda_multi_out *mout) 3606 { 3607 mutex_lock(&codec->spdif_mutex); 3608 if (mout->dig_out_used == HDA_DIG_ANALOG_DUP) 3609 /* already opened as analog dup; reset it once */ 3610 cleanup_dig_out_stream(codec, mout->dig_out_nid); 3611 mout->dig_out_used = HDA_DIG_EXCLUSIVE; 3612 mutex_unlock(&codec->spdif_mutex); 3613 return 0; 3614 } 3615 EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_open); 3616 3617 /** 3618 * snd_hda_multi_out_dig_prepare - prepare the digital out stream 3619 * @codec: the HDA codec 3620 * @mout: hda_multi_out object 3621 * @stream_tag: stream tag to assign 3622 * @format: format id to assign 3623 * @substream: PCM substream to assign 3624 */ 3625 int snd_hda_multi_out_dig_prepare(struct hda_codec *codec, 3626 struct hda_multi_out *mout, 3627 unsigned int stream_tag, 3628 unsigned int format, 3629 struct snd_pcm_substream *substream) 3630 { 3631 mutex_lock(&codec->spdif_mutex); 3632 setup_dig_out_stream(codec, mout->dig_out_nid, stream_tag, format); 3633 mutex_unlock(&codec->spdif_mutex); 3634 return 0; 3635 } 3636 EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_prepare); 3637 3638 /** 3639 * snd_hda_multi_out_dig_cleanup - clean-up the digital out stream 3640 * @codec: the HDA codec 3641 * @mout: hda_multi_out object 3642 */ 3643 int snd_hda_multi_out_dig_cleanup(struct hda_codec *codec, 3644 struct hda_multi_out *mout) 3645 { 3646 mutex_lock(&codec->spdif_mutex); 3647 cleanup_dig_out_stream(codec, mout->dig_out_nid); 3648 mutex_unlock(&codec->spdif_mutex); 3649 return 0; 3650 } 3651 EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_cleanup); 3652 3653 /** 3654 * snd_hda_multi_out_dig_close - release the digital out stream 3655 * @codec: the HDA codec 3656 * @mout: hda_multi_out object 3657 */ 3658 int snd_hda_multi_out_dig_close(struct hda_codec *codec, 3659 struct hda_multi_out *mout) 3660 { 3661 mutex_lock(&codec->spdif_mutex); 3662 mout->dig_out_used = 0; 3663 mutex_unlock(&codec->spdif_mutex); 3664 return 0; 3665 } 3666 EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_close); 3667 3668 /** 3669 * snd_hda_multi_out_analog_open - open analog outputs 3670 * @codec: the HDA codec 3671 * @mout: hda_multi_out object 3672 * @substream: PCM substream to assign 3673 * @hinfo: PCM information to assign 3674 * 3675 * Open analog outputs and set up the hw-constraints. 3676 * If the digital outputs can be opened as slave, open the digital 3677 * outputs, too. 3678 */ 3679 int snd_hda_multi_out_analog_open(struct hda_codec *codec, 3680 struct hda_multi_out *mout, 3681 struct snd_pcm_substream *substream, 3682 struct hda_pcm_stream *hinfo) 3683 { 3684 struct snd_pcm_runtime *runtime = substream->runtime; 3685 runtime->hw.channels_max = mout->max_channels; 3686 if (mout->dig_out_nid) { 3687 if (!mout->analog_rates) { 3688 mout->analog_rates = hinfo->rates; 3689 mout->analog_formats = hinfo->formats; 3690 mout->analog_maxbps = hinfo->maxbps; 3691 } else { 3692 runtime->hw.rates = mout->analog_rates; 3693 runtime->hw.formats = mout->analog_formats; 3694 hinfo->maxbps = mout->analog_maxbps; 3695 } 3696 if (!mout->spdif_rates) { 3697 snd_hda_query_supported_pcm(codec, mout->dig_out_nid, 3698 &mout->spdif_rates, 3699 &mout->spdif_formats, 3700 &mout->spdif_maxbps); 3701 } 3702 mutex_lock(&codec->spdif_mutex); 3703 if (mout->share_spdif) { 3704 if ((runtime->hw.rates & mout->spdif_rates) && 3705 (runtime->hw.formats & mout->spdif_formats)) { 3706 runtime->hw.rates &= mout->spdif_rates; 3707 runtime->hw.formats &= mout->spdif_formats; 3708 if (mout->spdif_maxbps < hinfo->maxbps) 3709 hinfo->maxbps = mout->spdif_maxbps; 3710 } else { 3711 mout->share_spdif = 0; 3712 /* FIXME: need notify? */ 3713 } 3714 } 3715 mutex_unlock(&codec->spdif_mutex); 3716 } 3717 return snd_pcm_hw_constraint_step(substream->runtime, 0, 3718 SNDRV_PCM_HW_PARAM_CHANNELS, 2); 3719 } 3720 EXPORT_SYMBOL_GPL(snd_hda_multi_out_analog_open); 3721 3722 /** 3723 * snd_hda_multi_out_analog_prepare - Preapre the analog outputs. 3724 * @codec: the HDA codec 3725 * @mout: hda_multi_out object 3726 * @stream_tag: stream tag to assign 3727 * @format: format id to assign 3728 * @substream: PCM substream to assign 3729 * 3730 * Set up the i/o for analog out. 3731 * When the digital out is available, copy the front out to digital out, too. 3732 */ 3733 int snd_hda_multi_out_analog_prepare(struct hda_codec *codec, 3734 struct hda_multi_out *mout, 3735 unsigned int stream_tag, 3736 unsigned int format, 3737 struct snd_pcm_substream *substream) 3738 { 3739 const hda_nid_t *nids = mout->dac_nids; 3740 int chs = substream->runtime->channels; 3741 struct hda_spdif_out *spdif; 3742 int i; 3743 3744 mutex_lock(&codec->spdif_mutex); 3745 spdif = snd_hda_spdif_out_of_nid(codec, mout->dig_out_nid); 3746 if (mout->dig_out_nid && mout->share_spdif && 3747 mout->dig_out_used != HDA_DIG_EXCLUSIVE) { 3748 if (chs == 2 && spdif != NULL && 3749 snd_hda_is_supported_format(codec, mout->dig_out_nid, 3750 format) && 3751 !(spdif->status & IEC958_AES0_NONAUDIO)) { 3752 mout->dig_out_used = HDA_DIG_ANALOG_DUP; 3753 setup_dig_out_stream(codec, mout->dig_out_nid, 3754 stream_tag, format); 3755 } else { 3756 mout->dig_out_used = 0; 3757 cleanup_dig_out_stream(codec, mout->dig_out_nid); 3758 } 3759 } 3760 mutex_unlock(&codec->spdif_mutex); 3761 3762 /* front */ 3763 snd_hda_codec_setup_stream(codec, nids[HDA_FRONT], stream_tag, 3764 0, format); 3765 if (!mout->no_share_stream && 3766 mout->hp_nid && mout->hp_nid != nids[HDA_FRONT]) 3767 /* headphone out will just decode front left/right (stereo) */ 3768 snd_hda_codec_setup_stream(codec, mout->hp_nid, stream_tag, 3769 0, format); 3770 /* extra outputs copied from front */ 3771 for (i = 0; i < ARRAY_SIZE(mout->hp_out_nid); i++) 3772 if (!mout->no_share_stream && mout->hp_out_nid[i]) 3773 snd_hda_codec_setup_stream(codec, 3774 mout->hp_out_nid[i], 3775 stream_tag, 0, format); 3776 3777 /* surrounds */ 3778 for (i = 1; i < mout->num_dacs; i++) { 3779 if (chs >= (i + 1) * 2) /* independent out */ 3780 snd_hda_codec_setup_stream(codec, nids[i], stream_tag, 3781 i * 2, format); 3782 else if (!mout->no_share_stream) /* copy front */ 3783 snd_hda_codec_setup_stream(codec, nids[i], stream_tag, 3784 0, format); 3785 } 3786 3787 /* extra surrounds */ 3788 for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++) { 3789 int ch = 0; 3790 if (!mout->extra_out_nid[i]) 3791 break; 3792 if (chs >= (i + 1) * 2) 3793 ch = i * 2; 3794 else if (!mout->no_share_stream) 3795 break; 3796 snd_hda_codec_setup_stream(codec, mout->extra_out_nid[i], 3797 stream_tag, ch, format); 3798 } 3799 3800 return 0; 3801 } 3802 EXPORT_SYMBOL_GPL(snd_hda_multi_out_analog_prepare); 3803 3804 /** 3805 * snd_hda_multi_out_analog_cleanup - clean up the setting for analog out 3806 * @codec: the HDA codec 3807 * @mout: hda_multi_out object 3808 */ 3809 int snd_hda_multi_out_analog_cleanup(struct hda_codec *codec, 3810 struct hda_multi_out *mout) 3811 { 3812 const hda_nid_t *nids = mout->dac_nids; 3813 int i; 3814 3815 for (i = 0; i < mout->num_dacs; i++) 3816 snd_hda_codec_cleanup_stream(codec, nids[i]); 3817 if (mout->hp_nid) 3818 snd_hda_codec_cleanup_stream(codec, mout->hp_nid); 3819 for (i = 0; i < ARRAY_SIZE(mout->hp_out_nid); i++) 3820 if (mout->hp_out_nid[i]) 3821 snd_hda_codec_cleanup_stream(codec, 3822 mout->hp_out_nid[i]); 3823 for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++) 3824 if (mout->extra_out_nid[i]) 3825 snd_hda_codec_cleanup_stream(codec, 3826 mout->extra_out_nid[i]); 3827 mutex_lock(&codec->spdif_mutex); 3828 if (mout->dig_out_nid && mout->dig_out_used == HDA_DIG_ANALOG_DUP) { 3829 cleanup_dig_out_stream(codec, mout->dig_out_nid); 3830 mout->dig_out_used = 0; 3831 } 3832 mutex_unlock(&codec->spdif_mutex); 3833 return 0; 3834 } 3835 EXPORT_SYMBOL_GPL(snd_hda_multi_out_analog_cleanup); 3836 3837 /** 3838 * snd_hda_get_default_vref - Get the default (mic) VREF pin bits 3839 * @codec: the HDA codec 3840 * @pin: referred pin NID 3841 * 3842 * Guess the suitable VREF pin bits to be set as the pin-control value. 3843 * Note: the function doesn't set the AC_PINCTL_IN_EN bit. 3844 */ 3845 unsigned int snd_hda_get_default_vref(struct hda_codec *codec, hda_nid_t pin) 3846 { 3847 unsigned int pincap; 3848 unsigned int oldval; 3849 oldval = snd_hda_codec_read(codec, pin, 0, 3850 AC_VERB_GET_PIN_WIDGET_CONTROL, 0); 3851 pincap = snd_hda_query_pin_caps(codec, pin); 3852 pincap = (pincap & AC_PINCAP_VREF) >> AC_PINCAP_VREF_SHIFT; 3853 /* Exception: if the default pin setup is vref50, we give it priority */ 3854 if ((pincap & AC_PINCAP_VREF_80) && oldval != PIN_VREF50) 3855 return AC_PINCTL_VREF_80; 3856 else if (pincap & AC_PINCAP_VREF_50) 3857 return AC_PINCTL_VREF_50; 3858 else if (pincap & AC_PINCAP_VREF_100) 3859 return AC_PINCTL_VREF_100; 3860 else if (pincap & AC_PINCAP_VREF_GRD) 3861 return AC_PINCTL_VREF_GRD; 3862 return AC_PINCTL_VREF_HIZ; 3863 } 3864 EXPORT_SYMBOL_GPL(snd_hda_get_default_vref); 3865 3866 /** 3867 * snd_hda_correct_pin_ctl - correct the pin ctl value for matching with the pin cap 3868 * @codec: the HDA codec 3869 * @pin: referred pin NID 3870 * @val: pin ctl value to audit 3871 */ 3872 unsigned int snd_hda_correct_pin_ctl(struct hda_codec *codec, 3873 hda_nid_t pin, unsigned int val) 3874 { 3875 static const unsigned int cap_lists[][2] = { 3876 { AC_PINCTL_VREF_100, AC_PINCAP_VREF_100 }, 3877 { AC_PINCTL_VREF_80, AC_PINCAP_VREF_80 }, 3878 { AC_PINCTL_VREF_50, AC_PINCAP_VREF_50 }, 3879 { AC_PINCTL_VREF_GRD, AC_PINCAP_VREF_GRD }, 3880 }; 3881 unsigned int cap; 3882 3883 if (!val) 3884 return 0; 3885 cap = snd_hda_query_pin_caps(codec, pin); 3886 if (!cap) 3887 return val; /* don't know what to do... */ 3888 3889 if (val & AC_PINCTL_OUT_EN) { 3890 if (!(cap & AC_PINCAP_OUT)) 3891 val &= ~(AC_PINCTL_OUT_EN | AC_PINCTL_HP_EN); 3892 else if ((val & AC_PINCTL_HP_EN) && !(cap & AC_PINCAP_HP_DRV)) 3893 val &= ~AC_PINCTL_HP_EN; 3894 } 3895 3896 if (val & AC_PINCTL_IN_EN) { 3897 if (!(cap & AC_PINCAP_IN)) 3898 val &= ~(AC_PINCTL_IN_EN | AC_PINCTL_VREFEN); 3899 else { 3900 unsigned int vcap, vref; 3901 int i; 3902 vcap = (cap & AC_PINCAP_VREF) >> AC_PINCAP_VREF_SHIFT; 3903 vref = val & AC_PINCTL_VREFEN; 3904 for (i = 0; i < ARRAY_SIZE(cap_lists); i++) { 3905 if (vref == cap_lists[i][0] && 3906 !(vcap & cap_lists[i][1])) { 3907 if (i == ARRAY_SIZE(cap_lists) - 1) 3908 vref = AC_PINCTL_VREF_HIZ; 3909 else 3910 vref = cap_lists[i + 1][0]; 3911 } 3912 } 3913 val &= ~AC_PINCTL_VREFEN; 3914 val |= vref; 3915 } 3916 } 3917 3918 return val; 3919 } 3920 EXPORT_SYMBOL_GPL(snd_hda_correct_pin_ctl); 3921 3922 /** 3923 * _snd_hda_pin_ctl - Helper to set pin ctl value 3924 * @codec: the HDA codec 3925 * @pin: referred pin NID 3926 * @val: pin control value to set 3927 * @cached: access over codec pinctl cache or direct write 3928 * 3929 * This function is a helper to set a pin ctl value more safely. 3930 * It corrects the pin ctl value via snd_hda_correct_pin_ctl(), stores the 3931 * value in pin target array via snd_hda_codec_set_pin_target(), then 3932 * actually writes the value via either snd_hda_codec_write_cache() or 3933 * snd_hda_codec_write() depending on @cached flag. 3934 */ 3935 int _snd_hda_set_pin_ctl(struct hda_codec *codec, hda_nid_t pin, 3936 unsigned int val, bool cached) 3937 { 3938 val = snd_hda_correct_pin_ctl(codec, pin, val); 3939 snd_hda_codec_set_pin_target(codec, pin, val); 3940 if (cached) 3941 return snd_hda_codec_write_cache(codec, pin, 0, 3942 AC_VERB_SET_PIN_WIDGET_CONTROL, val); 3943 else 3944 return snd_hda_codec_write(codec, pin, 0, 3945 AC_VERB_SET_PIN_WIDGET_CONTROL, val); 3946 } 3947 EXPORT_SYMBOL_GPL(_snd_hda_set_pin_ctl); 3948 3949 /** 3950 * snd_hda_add_imux_item - Add an item to input_mux 3951 * @codec: the HDA codec 3952 * @imux: imux helper object 3953 * @label: the name of imux item to assign 3954 * @index: index number of imux item to assign 3955 * @type_idx: pointer to store the resultant label index 3956 * 3957 * When the same label is used already in the existing items, the number 3958 * suffix is appended to the label. This label index number is stored 3959 * to type_idx when non-NULL pointer is given. 3960 */ 3961 int snd_hda_add_imux_item(struct hda_codec *codec, 3962 struct hda_input_mux *imux, const char *label, 3963 int index, int *type_idx) 3964 { 3965 int i, label_idx = 0; 3966 if (imux->num_items >= HDA_MAX_NUM_INPUTS) { 3967 codec_err(codec, "hda_codec: Too many imux items!\n"); 3968 return -EINVAL; 3969 } 3970 for (i = 0; i < imux->num_items; i++) { 3971 if (!strncmp(label, imux->items[i].label, strlen(label))) 3972 label_idx++; 3973 } 3974 if (type_idx) 3975 *type_idx = label_idx; 3976 if (label_idx > 0) 3977 snprintf(imux->items[imux->num_items].label, 3978 sizeof(imux->items[imux->num_items].label), 3979 "%s %d", label, label_idx); 3980 else 3981 strlcpy(imux->items[imux->num_items].label, label, 3982 sizeof(imux->items[imux->num_items].label)); 3983 imux->items[imux->num_items].index = index; 3984 imux->num_items++; 3985 return 0; 3986 } 3987 EXPORT_SYMBOL_GPL(snd_hda_add_imux_item); 3988 3989 /** 3990 * snd_hda_bus_reset_codecs - Reset the bus 3991 * @bus: HD-audio bus 3992 */ 3993 void snd_hda_bus_reset_codecs(struct hda_bus *bus) 3994 { 3995 struct hda_codec *codec; 3996 3997 list_for_each_codec(codec, bus) { 3998 /* FIXME: maybe a better way needed for forced reset */ 3999 if (current_work() != &codec->jackpoll_work.work) 4000 cancel_delayed_work_sync(&codec->jackpoll_work); 4001 #ifdef CONFIG_PM 4002 if (hda_codec_is_power_on(codec)) { 4003 hda_call_codec_suspend(codec); 4004 hda_call_codec_resume(codec); 4005 } 4006 #endif 4007 } 4008 } 4009 4010 /** 4011 * snd_print_pcm_bits - Print the supported PCM fmt bits to the string buffer 4012 * @pcm: PCM caps bits 4013 * @buf: the string buffer to write 4014 * @buflen: the max buffer length 4015 * 4016 * used by hda_proc.c and hda_eld.c 4017 */ 4018 void snd_print_pcm_bits(int pcm, char *buf, int buflen) 4019 { 4020 static const unsigned int bits[] = { 8, 16, 20, 24, 32 }; 4021 int i, j; 4022 4023 for (i = 0, j = 0; i < ARRAY_SIZE(bits); i++) 4024 if (pcm & (AC_SUPPCM_BITS_8 << i)) 4025 j += snprintf(buf + j, buflen - j, " %d", bits[i]); 4026 4027 buf[j] = '\0'; /* necessary when j == 0 */ 4028 } 4029 EXPORT_SYMBOL_GPL(snd_print_pcm_bits); 4030 4031 MODULE_DESCRIPTION("HDA codec core"); 4032 MODULE_LICENSE("GPL"); 4033