1 /* 2 * Universal Interface for Intel High Definition Audio Codec 3 * 4 * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de> 5 * 6 * 7 * This driver is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License as published by 9 * the Free Software Foundation; either version 2 of the License, or 10 * (at your option) any later version. 11 * 12 * This driver is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 20 */ 21 22 #include <linux/init.h> 23 #include <linux/delay.h> 24 #include <linux/slab.h> 25 #include <linux/mutex.h> 26 #include <linux/module.h> 27 #include <linux/pm.h> 28 #include <linux/pm_runtime.h> 29 #include <sound/core.h> 30 #include "hda_codec.h" 31 #include <sound/asoundef.h> 32 #include <sound/tlv.h> 33 #include <sound/initval.h> 34 #include <sound/jack.h> 35 #include "hda_local.h" 36 #include "hda_beep.h" 37 #include "hda_jack.h" 38 #include <sound/hda_hwdep.h> 39 40 #ifdef CONFIG_PM 41 #define codec_in_pm(codec) atomic_read(&(codec)->core.in_pm) 42 #define hda_codec_is_power_on(codec) \ 43 (!pm_runtime_suspended(hda_codec_dev(codec))) 44 #else 45 #define codec_in_pm(codec) 0 46 #define hda_codec_is_power_on(codec) 1 47 #endif 48 49 #define codec_has_epss(codec) \ 50 ((codec)->core.power_caps & AC_PWRST_EPSS) 51 #define codec_has_clkstop(codec) \ 52 ((codec)->core.power_caps & AC_PWRST_CLKSTOP) 53 54 /* 55 * Send and receive a verb - passed to exec_verb override for hdac_device 56 */ 57 static int codec_exec_verb(struct hdac_device *dev, unsigned int cmd, 58 unsigned int flags, unsigned int *res) 59 { 60 struct hda_codec *codec = container_of(dev, struct hda_codec, core); 61 struct hda_bus *bus = codec->bus; 62 int err; 63 64 if (cmd == ~0) 65 return -1; 66 67 again: 68 snd_hda_power_up_pm(codec); 69 mutex_lock(&bus->core.cmd_mutex); 70 if (flags & HDA_RW_NO_RESPONSE_FALLBACK) 71 bus->no_response_fallback = 1; 72 err = snd_hdac_bus_exec_verb_unlocked(&bus->core, codec->core.addr, 73 cmd, res); 74 bus->no_response_fallback = 0; 75 mutex_unlock(&bus->core.cmd_mutex); 76 snd_hda_power_down_pm(codec); 77 if (!codec_in_pm(codec) && res && err == -EAGAIN) { 78 if (bus->response_reset) { 79 codec_dbg(codec, 80 "resetting BUS due to fatal communication error\n"); 81 snd_hda_bus_reset(bus); 82 } 83 goto again; 84 } 85 /* clear reset-flag when the communication gets recovered */ 86 if (!err || codec_in_pm(codec)) 87 bus->response_reset = 0; 88 return err; 89 } 90 91 /** 92 * snd_hda_sequence_write - sequence writes 93 * @codec: the HDA codec 94 * @seq: VERB array to send 95 * 96 * Send the commands sequentially from the given array. 97 * The array must be terminated with NID=0. 98 */ 99 void snd_hda_sequence_write(struct hda_codec *codec, const struct hda_verb *seq) 100 { 101 for (; seq->nid; seq++) 102 snd_hda_codec_write(codec, seq->nid, 0, seq->verb, seq->param); 103 } 104 EXPORT_SYMBOL_GPL(snd_hda_sequence_write); 105 106 /* connection list element */ 107 struct hda_conn_list { 108 struct list_head list; 109 int len; 110 hda_nid_t nid; 111 hda_nid_t conns[0]; 112 }; 113 114 /* look up the cached results */ 115 static struct hda_conn_list * 116 lookup_conn_list(struct hda_codec *codec, hda_nid_t nid) 117 { 118 struct hda_conn_list *p; 119 list_for_each_entry(p, &codec->conn_list, list) { 120 if (p->nid == nid) 121 return p; 122 } 123 return NULL; 124 } 125 126 static int add_conn_list(struct hda_codec *codec, hda_nid_t nid, int len, 127 const hda_nid_t *list) 128 { 129 struct hda_conn_list *p; 130 131 p = kmalloc(sizeof(*p) + len * sizeof(hda_nid_t), GFP_KERNEL); 132 if (!p) 133 return -ENOMEM; 134 p->len = len; 135 p->nid = nid; 136 memcpy(p->conns, list, len * sizeof(hda_nid_t)); 137 list_add(&p->list, &codec->conn_list); 138 return 0; 139 } 140 141 static void remove_conn_list(struct hda_codec *codec) 142 { 143 while (!list_empty(&codec->conn_list)) { 144 struct hda_conn_list *p; 145 p = list_first_entry(&codec->conn_list, typeof(*p), list); 146 list_del(&p->list); 147 kfree(p); 148 } 149 } 150 151 /* read the connection and add to the cache */ 152 static int read_and_add_raw_conns(struct hda_codec *codec, hda_nid_t nid) 153 { 154 hda_nid_t list[32]; 155 hda_nid_t *result = list; 156 int len; 157 158 len = snd_hda_get_raw_connections(codec, nid, list, ARRAY_SIZE(list)); 159 if (len == -ENOSPC) { 160 len = snd_hda_get_num_raw_conns(codec, nid); 161 result = kmalloc(sizeof(hda_nid_t) * len, GFP_KERNEL); 162 if (!result) 163 return -ENOMEM; 164 len = snd_hda_get_raw_connections(codec, nid, result, len); 165 } 166 if (len >= 0) 167 len = snd_hda_override_conn_list(codec, nid, len, result); 168 if (result != list) 169 kfree(result); 170 return len; 171 } 172 173 /** 174 * snd_hda_get_conn_list - get connection list 175 * @codec: the HDA codec 176 * @nid: NID to parse 177 * @listp: the pointer to store NID list 178 * 179 * Parses the connection list of the given widget and stores the pointer 180 * to the list of NIDs. 181 * 182 * Returns the number of connections, or a negative error code. 183 * 184 * Note that the returned pointer isn't protected against the list 185 * modification. If snd_hda_override_conn_list() might be called 186 * concurrently, protect with a mutex appropriately. 187 */ 188 int snd_hda_get_conn_list(struct hda_codec *codec, hda_nid_t nid, 189 const hda_nid_t **listp) 190 { 191 bool added = false; 192 193 for (;;) { 194 int err; 195 const struct hda_conn_list *p; 196 197 /* if the connection-list is already cached, read it */ 198 p = lookup_conn_list(codec, nid); 199 if (p) { 200 if (listp) 201 *listp = p->conns; 202 return p->len; 203 } 204 if (snd_BUG_ON(added)) 205 return -EINVAL; 206 207 err = read_and_add_raw_conns(codec, nid); 208 if (err < 0) 209 return err; 210 added = true; 211 } 212 } 213 EXPORT_SYMBOL_GPL(snd_hda_get_conn_list); 214 215 /** 216 * snd_hda_get_connections - copy connection list 217 * @codec: the HDA codec 218 * @nid: NID to parse 219 * @conn_list: connection list array; when NULL, checks only the size 220 * @max_conns: max. number of connections to store 221 * 222 * Parses the connection list of the given widget and stores the list 223 * of NIDs. 224 * 225 * Returns the number of connections, or a negative error code. 226 */ 227 int snd_hda_get_connections(struct hda_codec *codec, hda_nid_t nid, 228 hda_nid_t *conn_list, int max_conns) 229 { 230 const hda_nid_t *list; 231 int len = snd_hda_get_conn_list(codec, nid, &list); 232 233 if (len > 0 && conn_list) { 234 if (len > max_conns) { 235 codec_err(codec, "Too many connections %d for NID 0x%x\n", 236 len, nid); 237 return -EINVAL; 238 } 239 memcpy(conn_list, list, len * sizeof(hda_nid_t)); 240 } 241 242 return len; 243 } 244 EXPORT_SYMBOL_GPL(snd_hda_get_connections); 245 246 /** 247 * snd_hda_override_conn_list - add/modify the connection-list to cache 248 * @codec: the HDA codec 249 * @nid: NID to parse 250 * @len: number of connection list entries 251 * @list: the list of connection entries 252 * 253 * Add or modify the given connection-list to the cache. If the corresponding 254 * cache already exists, invalidate it and append a new one. 255 * 256 * Returns zero or a negative error code. 257 */ 258 int snd_hda_override_conn_list(struct hda_codec *codec, hda_nid_t nid, int len, 259 const hda_nid_t *list) 260 { 261 struct hda_conn_list *p; 262 263 p = lookup_conn_list(codec, nid); 264 if (p) { 265 list_del(&p->list); 266 kfree(p); 267 } 268 269 return add_conn_list(codec, nid, len, list); 270 } 271 EXPORT_SYMBOL_GPL(snd_hda_override_conn_list); 272 273 /** 274 * snd_hda_get_conn_index - get the connection index of the given NID 275 * @codec: the HDA codec 276 * @mux: NID containing the list 277 * @nid: NID to select 278 * @recursive: 1 when searching NID recursively, otherwise 0 279 * 280 * Parses the connection list of the widget @mux and checks whether the 281 * widget @nid is present. If it is, return the connection index. 282 * Otherwise it returns -1. 283 */ 284 int snd_hda_get_conn_index(struct hda_codec *codec, hda_nid_t mux, 285 hda_nid_t nid, int recursive) 286 { 287 const hda_nid_t *conn; 288 int i, nums; 289 290 nums = snd_hda_get_conn_list(codec, mux, &conn); 291 for (i = 0; i < nums; i++) 292 if (conn[i] == nid) 293 return i; 294 if (!recursive) 295 return -1; 296 if (recursive > 10) { 297 codec_dbg(codec, "too deep connection for 0x%x\n", nid); 298 return -1; 299 } 300 recursive++; 301 for (i = 0; i < nums; i++) { 302 unsigned int type = get_wcaps_type(get_wcaps(codec, conn[i])); 303 if (type == AC_WID_PIN || type == AC_WID_AUD_OUT) 304 continue; 305 if (snd_hda_get_conn_index(codec, conn[i], nid, recursive) >= 0) 306 return i; 307 } 308 return -1; 309 } 310 EXPORT_SYMBOL_GPL(snd_hda_get_conn_index); 311 312 /** 313 * snd_hda_get_num_devices - get DEVLIST_LEN parameter of the given widget 314 * @codec: the HDA codec 315 * @nid: NID of the pin to parse 316 * 317 * Get the device entry number on the given widget. This is a feature of 318 * DP MST audio. Each pin can have several device entries in it. 319 */ 320 unsigned int snd_hda_get_num_devices(struct hda_codec *codec, hda_nid_t nid) 321 { 322 unsigned int wcaps = get_wcaps(codec, nid); 323 unsigned int parm; 324 325 if (!codec->dp_mst || !(wcaps & AC_WCAP_DIGITAL) || 326 get_wcaps_type(wcaps) != AC_WID_PIN) 327 return 0; 328 329 parm = snd_hdac_read_parm_uncached(&codec->core, nid, AC_PAR_DEVLIST_LEN); 330 if (parm == -1) 331 parm = 0; 332 return parm & AC_DEV_LIST_LEN_MASK; 333 } 334 EXPORT_SYMBOL_GPL(snd_hda_get_num_devices); 335 336 /** 337 * snd_hda_get_devices - copy device list without cache 338 * @codec: the HDA codec 339 * @nid: NID of the pin to parse 340 * @dev_list: device list array 341 * @max_devices: max. number of devices to store 342 * 343 * Copy the device list. This info is dynamic and so not cached. 344 * Currently called only from hda_proc.c, so not exported. 345 */ 346 int snd_hda_get_devices(struct hda_codec *codec, hda_nid_t nid, 347 u8 *dev_list, int max_devices) 348 { 349 unsigned int parm; 350 int i, dev_len, devices; 351 352 parm = snd_hda_get_num_devices(codec, nid); 353 if (!parm) /* not multi-stream capable */ 354 return 0; 355 356 dev_len = parm + 1; 357 dev_len = dev_len < max_devices ? dev_len : max_devices; 358 359 devices = 0; 360 while (devices < dev_len) { 361 if (snd_hdac_read(&codec->core, nid, 362 AC_VERB_GET_DEVICE_LIST, devices, &parm)) 363 break; /* error */ 364 365 for (i = 0; i < 8; i++) { 366 dev_list[devices] = (u8)parm; 367 parm >>= 4; 368 devices++; 369 if (devices >= dev_len) 370 break; 371 } 372 } 373 return devices; 374 } 375 376 /** 377 * snd_hda_get_dev_select - get device entry select on the pin 378 * @codec: the HDA codec 379 * @nid: NID of the pin to get device entry select 380 * 381 * Get the devcie entry select on the pin. Return the device entry 382 * id selected on the pin. Return 0 means the first device entry 383 * is selected or MST is not supported. 384 */ 385 int snd_hda_get_dev_select(struct hda_codec *codec, hda_nid_t nid) 386 { 387 /* not support dp_mst will always return 0, using first dev_entry */ 388 if (!codec->dp_mst) 389 return 0; 390 391 return snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DEVICE_SEL, 0); 392 } 393 EXPORT_SYMBOL_GPL(snd_hda_get_dev_select); 394 395 /** 396 * snd_hda_set_dev_select - set device entry select on the pin 397 * @codec: the HDA codec 398 * @nid: NID of the pin to set device entry select 399 * @dev_id: device entry id to be set 400 * 401 * Set the device entry select on the pin nid. 402 */ 403 int snd_hda_set_dev_select(struct hda_codec *codec, hda_nid_t nid, int dev_id) 404 { 405 int ret, num_devices; 406 407 /* not support dp_mst will always return 0, using first dev_entry */ 408 if (!codec->dp_mst) 409 return 0; 410 411 /* AC_PAR_DEVLIST_LEN is 0 based. */ 412 num_devices = snd_hda_get_num_devices(codec, nid) + 1; 413 /* If Device List Length is 0 (num_device = 1), 414 * the pin is not multi stream capable. 415 * Do nothing in this case. 416 */ 417 if (num_devices == 1) 418 return 0; 419 420 /* Behavior of setting index being equal to or greater than 421 * Device List Length is not predictable 422 */ 423 if (num_devices <= dev_id) 424 return -EINVAL; 425 426 ret = snd_hda_codec_write(codec, nid, 0, 427 AC_VERB_SET_DEVICE_SEL, dev_id); 428 429 return ret; 430 } 431 EXPORT_SYMBOL_GPL(snd_hda_set_dev_select); 432 433 /* 434 * read widget caps for each widget and store in cache 435 */ 436 static int read_widget_caps(struct hda_codec *codec, hda_nid_t fg_node) 437 { 438 int i; 439 hda_nid_t nid; 440 441 codec->wcaps = kmalloc(codec->core.num_nodes * 4, GFP_KERNEL); 442 if (!codec->wcaps) 443 return -ENOMEM; 444 nid = codec->core.start_nid; 445 for (i = 0; i < codec->core.num_nodes; i++, nid++) 446 codec->wcaps[i] = snd_hdac_read_parm_uncached(&codec->core, 447 nid, AC_PAR_AUDIO_WIDGET_CAP); 448 return 0; 449 } 450 451 /* read all pin default configurations and save codec->init_pins */ 452 static int read_pin_defaults(struct hda_codec *codec) 453 { 454 hda_nid_t nid; 455 456 for_each_hda_codec_node(nid, codec) { 457 struct hda_pincfg *pin; 458 unsigned int wcaps = get_wcaps(codec, nid); 459 unsigned int wid_type = get_wcaps_type(wcaps); 460 if (wid_type != AC_WID_PIN) 461 continue; 462 pin = snd_array_new(&codec->init_pins); 463 if (!pin) 464 return -ENOMEM; 465 pin->nid = nid; 466 pin->cfg = snd_hda_codec_read(codec, nid, 0, 467 AC_VERB_GET_CONFIG_DEFAULT, 0); 468 /* 469 * all device entries are the same widget control so far 470 * fixme: if any codec is different, need fix here 471 */ 472 pin->ctrl = snd_hda_codec_read(codec, nid, 0, 473 AC_VERB_GET_PIN_WIDGET_CONTROL, 474 0); 475 } 476 return 0; 477 } 478 479 /* look up the given pin config list and return the item matching with NID */ 480 static struct hda_pincfg *look_up_pincfg(struct hda_codec *codec, 481 struct snd_array *array, 482 hda_nid_t nid) 483 { 484 int i; 485 for (i = 0; i < array->used; i++) { 486 struct hda_pincfg *pin = snd_array_elem(array, i); 487 if (pin->nid == nid) 488 return pin; 489 } 490 return NULL; 491 } 492 493 /* set the current pin config value for the given NID. 494 * the value is cached, and read via snd_hda_codec_get_pincfg() 495 */ 496 int snd_hda_add_pincfg(struct hda_codec *codec, struct snd_array *list, 497 hda_nid_t nid, unsigned int cfg) 498 { 499 struct hda_pincfg *pin; 500 501 /* the check below may be invalid when pins are added by a fixup 502 * dynamically (e.g. via snd_hda_codec_update_widgets()), so disabled 503 * for now 504 */ 505 /* 506 if (get_wcaps_type(get_wcaps(codec, nid)) != AC_WID_PIN) 507 return -EINVAL; 508 */ 509 510 pin = look_up_pincfg(codec, list, nid); 511 if (!pin) { 512 pin = snd_array_new(list); 513 if (!pin) 514 return -ENOMEM; 515 pin->nid = nid; 516 } 517 pin->cfg = cfg; 518 return 0; 519 } 520 521 /** 522 * snd_hda_codec_set_pincfg - Override a pin default configuration 523 * @codec: the HDA codec 524 * @nid: NID to set the pin config 525 * @cfg: the pin default config value 526 * 527 * Override a pin default configuration value in the cache. 528 * This value can be read by snd_hda_codec_get_pincfg() in a higher 529 * priority than the real hardware value. 530 */ 531 int snd_hda_codec_set_pincfg(struct hda_codec *codec, 532 hda_nid_t nid, unsigned int cfg) 533 { 534 return snd_hda_add_pincfg(codec, &codec->driver_pins, nid, cfg); 535 } 536 EXPORT_SYMBOL_GPL(snd_hda_codec_set_pincfg); 537 538 /** 539 * snd_hda_codec_get_pincfg - Obtain a pin-default configuration 540 * @codec: the HDA codec 541 * @nid: NID to get the pin config 542 * 543 * Get the current pin config value of the given pin NID. 544 * If the pincfg value is cached or overridden via sysfs or driver, 545 * returns the cached value. 546 */ 547 unsigned int snd_hda_codec_get_pincfg(struct hda_codec *codec, hda_nid_t nid) 548 { 549 struct hda_pincfg *pin; 550 551 #ifdef CONFIG_SND_HDA_RECONFIG 552 { 553 unsigned int cfg = 0; 554 mutex_lock(&codec->user_mutex); 555 pin = look_up_pincfg(codec, &codec->user_pins, nid); 556 if (pin) 557 cfg = pin->cfg; 558 mutex_unlock(&codec->user_mutex); 559 if (cfg) 560 return cfg; 561 } 562 #endif 563 pin = look_up_pincfg(codec, &codec->driver_pins, nid); 564 if (pin) 565 return pin->cfg; 566 pin = look_up_pincfg(codec, &codec->init_pins, nid); 567 if (pin) 568 return pin->cfg; 569 return 0; 570 } 571 EXPORT_SYMBOL_GPL(snd_hda_codec_get_pincfg); 572 573 /** 574 * snd_hda_codec_set_pin_target - remember the current pinctl target value 575 * @codec: the HDA codec 576 * @nid: pin NID 577 * @val: assigned pinctl value 578 * 579 * This function stores the given value to a pinctl target value in the 580 * pincfg table. This isn't always as same as the actually written value 581 * but can be referred at any time via snd_hda_codec_get_pin_target(). 582 */ 583 int snd_hda_codec_set_pin_target(struct hda_codec *codec, hda_nid_t nid, 584 unsigned int val) 585 { 586 struct hda_pincfg *pin; 587 588 pin = look_up_pincfg(codec, &codec->init_pins, nid); 589 if (!pin) 590 return -EINVAL; 591 pin->target = val; 592 return 0; 593 } 594 EXPORT_SYMBOL_GPL(snd_hda_codec_set_pin_target); 595 596 /** 597 * snd_hda_codec_get_pin_target - return the current pinctl target value 598 * @codec: the HDA codec 599 * @nid: pin NID 600 */ 601 int snd_hda_codec_get_pin_target(struct hda_codec *codec, hda_nid_t nid) 602 { 603 struct hda_pincfg *pin; 604 605 pin = look_up_pincfg(codec, &codec->init_pins, nid); 606 if (!pin) 607 return 0; 608 return pin->target; 609 } 610 EXPORT_SYMBOL_GPL(snd_hda_codec_get_pin_target); 611 612 /** 613 * snd_hda_shutup_pins - Shut up all pins 614 * @codec: the HDA codec 615 * 616 * Clear all pin controls to shup up before suspend for avoiding click noise. 617 * The controls aren't cached so that they can be resumed properly. 618 */ 619 void snd_hda_shutup_pins(struct hda_codec *codec) 620 { 621 int i; 622 /* don't shut up pins when unloading the driver; otherwise it breaks 623 * the default pin setup at the next load of the driver 624 */ 625 if (codec->bus->shutdown) 626 return; 627 for (i = 0; i < codec->init_pins.used; i++) { 628 struct hda_pincfg *pin = snd_array_elem(&codec->init_pins, i); 629 /* use read here for syncing after issuing each verb */ 630 snd_hda_codec_read(codec, pin->nid, 0, 631 AC_VERB_SET_PIN_WIDGET_CONTROL, 0); 632 } 633 codec->pins_shutup = 1; 634 } 635 EXPORT_SYMBOL_GPL(snd_hda_shutup_pins); 636 637 #ifdef CONFIG_PM 638 /* Restore the pin controls cleared previously via snd_hda_shutup_pins() */ 639 static void restore_shutup_pins(struct hda_codec *codec) 640 { 641 int i; 642 if (!codec->pins_shutup) 643 return; 644 if (codec->bus->shutdown) 645 return; 646 for (i = 0; i < codec->init_pins.used; i++) { 647 struct hda_pincfg *pin = snd_array_elem(&codec->init_pins, i); 648 snd_hda_codec_write(codec, pin->nid, 0, 649 AC_VERB_SET_PIN_WIDGET_CONTROL, 650 pin->ctrl); 651 } 652 codec->pins_shutup = 0; 653 } 654 #endif 655 656 static void hda_jackpoll_work(struct work_struct *work) 657 { 658 struct hda_codec *codec = 659 container_of(work, struct hda_codec, jackpoll_work.work); 660 661 snd_hda_jack_set_dirty_all(codec); 662 snd_hda_jack_poll_all(codec); 663 664 if (!codec->jackpoll_interval) 665 return; 666 667 schedule_delayed_work(&codec->jackpoll_work, 668 codec->jackpoll_interval); 669 } 670 671 /* release all pincfg lists */ 672 static void free_init_pincfgs(struct hda_codec *codec) 673 { 674 snd_array_free(&codec->driver_pins); 675 #ifdef CONFIG_SND_HDA_RECONFIG 676 snd_array_free(&codec->user_pins); 677 #endif 678 snd_array_free(&codec->init_pins); 679 } 680 681 /* 682 * audio-converter setup caches 683 */ 684 struct hda_cvt_setup { 685 hda_nid_t nid; 686 u8 stream_tag; 687 u8 channel_id; 688 u16 format_id; 689 unsigned char active; /* cvt is currently used */ 690 unsigned char dirty; /* setups should be cleared */ 691 }; 692 693 /* get or create a cache entry for the given audio converter NID */ 694 static struct hda_cvt_setup * 695 get_hda_cvt_setup(struct hda_codec *codec, hda_nid_t nid) 696 { 697 struct hda_cvt_setup *p; 698 int i; 699 700 for (i = 0; i < codec->cvt_setups.used; i++) { 701 p = snd_array_elem(&codec->cvt_setups, i); 702 if (p->nid == nid) 703 return p; 704 } 705 p = snd_array_new(&codec->cvt_setups); 706 if (p) 707 p->nid = nid; 708 return p; 709 } 710 711 /* 712 * PCM device 713 */ 714 static void release_pcm(struct kref *kref) 715 { 716 struct hda_pcm *pcm = container_of(kref, struct hda_pcm, kref); 717 718 if (pcm->pcm) 719 snd_device_free(pcm->codec->card, pcm->pcm); 720 clear_bit(pcm->device, pcm->codec->bus->pcm_dev_bits); 721 kfree(pcm->name); 722 kfree(pcm); 723 } 724 725 void snd_hda_codec_pcm_put(struct hda_pcm *pcm) 726 { 727 kref_put(&pcm->kref, release_pcm); 728 } 729 EXPORT_SYMBOL_GPL(snd_hda_codec_pcm_put); 730 731 struct hda_pcm *snd_hda_codec_pcm_new(struct hda_codec *codec, 732 const char *fmt, ...) 733 { 734 struct hda_pcm *pcm; 735 va_list args; 736 737 pcm = kzalloc(sizeof(*pcm), GFP_KERNEL); 738 if (!pcm) 739 return NULL; 740 741 pcm->codec = codec; 742 kref_init(&pcm->kref); 743 va_start(args, fmt); 744 pcm->name = kvasprintf(GFP_KERNEL, fmt, args); 745 va_end(args); 746 if (!pcm->name) { 747 kfree(pcm); 748 return NULL; 749 } 750 751 list_add_tail(&pcm->list, &codec->pcm_list_head); 752 return pcm; 753 } 754 EXPORT_SYMBOL_GPL(snd_hda_codec_pcm_new); 755 756 /* 757 * codec destructor 758 */ 759 static void codec_release_pcms(struct hda_codec *codec) 760 { 761 struct hda_pcm *pcm, *n; 762 763 list_for_each_entry_safe(pcm, n, &codec->pcm_list_head, list) { 764 list_del_init(&pcm->list); 765 if (pcm->pcm) 766 snd_device_disconnect(codec->card, pcm->pcm); 767 snd_hda_codec_pcm_put(pcm); 768 } 769 } 770 771 void snd_hda_codec_cleanup_for_unbind(struct hda_codec *codec) 772 { 773 if (codec->registered) { 774 /* pm_runtime_put() is called in snd_hdac_device_exit() */ 775 pm_runtime_get_noresume(hda_codec_dev(codec)); 776 pm_runtime_disable(hda_codec_dev(codec)); 777 codec->registered = 0; 778 } 779 780 cancel_delayed_work_sync(&codec->jackpoll_work); 781 if (!codec->in_freeing) 782 snd_hda_ctls_clear(codec); 783 codec_release_pcms(codec); 784 snd_hda_detach_beep_device(codec); 785 memset(&codec->patch_ops, 0, sizeof(codec->patch_ops)); 786 snd_hda_jack_tbl_clear(codec); 787 codec->proc_widget_hook = NULL; 788 codec->spec = NULL; 789 790 /* free only driver_pins so that init_pins + user_pins are restored */ 791 snd_array_free(&codec->driver_pins); 792 snd_array_free(&codec->cvt_setups); 793 snd_array_free(&codec->spdif_out); 794 snd_array_free(&codec->verbs); 795 codec->preset = NULL; 796 codec->slave_dig_outs = NULL; 797 codec->spdif_status_reset = 0; 798 snd_array_free(&codec->mixers); 799 snd_array_free(&codec->nids); 800 remove_conn_list(codec); 801 snd_hdac_regmap_exit(&codec->core); 802 } 803 804 static unsigned int hda_set_power_state(struct hda_codec *codec, 805 unsigned int power_state); 806 807 /* also called from hda_bind.c */ 808 void snd_hda_codec_register(struct hda_codec *codec) 809 { 810 if (codec->registered) 811 return; 812 if (device_is_registered(hda_codec_dev(codec))) { 813 snd_hda_register_beep_device(codec); 814 snd_hdac_link_power(&codec->core, true); 815 pm_runtime_enable(hda_codec_dev(codec)); 816 /* it was powered up in snd_hda_codec_new(), now all done */ 817 snd_hda_power_down(codec); 818 codec->registered = 1; 819 } 820 } 821 822 static int snd_hda_codec_dev_register(struct snd_device *device) 823 { 824 snd_hda_codec_register(device->device_data); 825 return 0; 826 } 827 828 static int snd_hda_codec_dev_disconnect(struct snd_device *device) 829 { 830 struct hda_codec *codec = device->device_data; 831 832 snd_hda_detach_beep_device(codec); 833 return 0; 834 } 835 836 static int snd_hda_codec_dev_free(struct snd_device *device) 837 { 838 struct hda_codec *codec = device->device_data; 839 840 codec->in_freeing = 1; 841 snd_hdac_device_unregister(&codec->core); 842 snd_hdac_link_power(&codec->core, false); 843 put_device(hda_codec_dev(codec)); 844 return 0; 845 } 846 847 static void snd_hda_codec_dev_release(struct device *dev) 848 { 849 struct hda_codec *codec = dev_to_hda_codec(dev); 850 851 free_init_pincfgs(codec); 852 snd_hdac_device_exit(&codec->core); 853 snd_hda_sysfs_clear(codec); 854 kfree(codec->modelname); 855 kfree(codec->wcaps); 856 kfree(codec); 857 } 858 859 /** 860 * snd_hda_codec_new - create a HDA codec 861 * @bus: the bus to assign 862 * @codec_addr: the codec address 863 * @codecp: the pointer to store the generated codec 864 * 865 * Returns 0 if successful, or a negative error code. 866 */ 867 int snd_hda_codec_new(struct hda_bus *bus, struct snd_card *card, 868 unsigned int codec_addr, struct hda_codec **codecp) 869 { 870 struct hda_codec *codec; 871 char component[31]; 872 hda_nid_t fg; 873 int err; 874 static struct snd_device_ops dev_ops = { 875 .dev_register = snd_hda_codec_dev_register, 876 .dev_disconnect = snd_hda_codec_dev_disconnect, 877 .dev_free = snd_hda_codec_dev_free, 878 }; 879 880 if (snd_BUG_ON(!bus)) 881 return -EINVAL; 882 if (snd_BUG_ON(codec_addr > HDA_MAX_CODEC_ADDRESS)) 883 return -EINVAL; 884 885 codec = kzalloc(sizeof(*codec), GFP_KERNEL); 886 if (!codec) 887 return -ENOMEM; 888 889 sprintf(component, "hdaudioC%dD%d", card->number, codec_addr); 890 err = snd_hdac_device_init(&codec->core, &bus->core, component, 891 codec_addr); 892 if (err < 0) { 893 kfree(codec); 894 return err; 895 } 896 897 codec->core.dev.release = snd_hda_codec_dev_release; 898 codec->core.type = HDA_DEV_LEGACY; 899 codec->core.exec_verb = codec_exec_verb; 900 901 codec->bus = bus; 902 codec->card = card; 903 codec->addr = codec_addr; 904 mutex_init(&codec->spdif_mutex); 905 mutex_init(&codec->control_mutex); 906 snd_array_init(&codec->mixers, sizeof(struct hda_nid_item), 32); 907 snd_array_init(&codec->nids, sizeof(struct hda_nid_item), 32); 908 snd_array_init(&codec->init_pins, sizeof(struct hda_pincfg), 16); 909 snd_array_init(&codec->driver_pins, sizeof(struct hda_pincfg), 16); 910 snd_array_init(&codec->cvt_setups, sizeof(struct hda_cvt_setup), 8); 911 snd_array_init(&codec->spdif_out, sizeof(struct hda_spdif_out), 16); 912 snd_array_init(&codec->jacktbl, sizeof(struct hda_jack_tbl), 16); 913 snd_array_init(&codec->verbs, sizeof(struct hda_verb *), 8); 914 INIT_LIST_HEAD(&codec->conn_list); 915 INIT_LIST_HEAD(&codec->pcm_list_head); 916 917 INIT_DELAYED_WORK(&codec->jackpoll_work, hda_jackpoll_work); 918 codec->depop_delay = -1; 919 codec->fixup_id = HDA_FIXUP_ID_NOT_SET; 920 921 #ifdef CONFIG_PM 922 codec->power_jiffies = jiffies; 923 #endif 924 925 snd_hda_sysfs_init(codec); 926 927 if (codec->bus->modelname) { 928 codec->modelname = kstrdup(codec->bus->modelname, GFP_KERNEL); 929 if (!codec->modelname) { 930 err = -ENOMEM; 931 goto error; 932 } 933 } 934 935 fg = codec->core.afg ? codec->core.afg : codec->core.mfg; 936 err = read_widget_caps(codec, fg); 937 if (err < 0) 938 goto error; 939 err = read_pin_defaults(codec); 940 if (err < 0) 941 goto error; 942 943 /* power-up all before initialization */ 944 hda_set_power_state(codec, AC_PWRST_D0); 945 946 snd_hda_codec_proc_new(codec); 947 948 snd_hda_create_hwdep(codec); 949 950 sprintf(component, "HDA:%08x,%08x,%08x", codec->core.vendor_id, 951 codec->core.subsystem_id, codec->core.revision_id); 952 snd_component_add(card, component); 953 954 err = snd_device_new(card, SNDRV_DEV_CODEC, codec, &dev_ops); 955 if (err < 0) 956 goto error; 957 958 if (codecp) 959 *codecp = codec; 960 return 0; 961 962 error: 963 put_device(hda_codec_dev(codec)); 964 return err; 965 } 966 EXPORT_SYMBOL_GPL(snd_hda_codec_new); 967 968 /** 969 * snd_hda_codec_update_widgets - Refresh widget caps and pin defaults 970 * @codec: the HDA codec 971 * 972 * Forcibly refresh the all widget caps and the init pin configurations of 973 * the given codec. 974 */ 975 int snd_hda_codec_update_widgets(struct hda_codec *codec) 976 { 977 hda_nid_t fg; 978 int err; 979 980 err = snd_hdac_refresh_widgets(&codec->core, true); 981 if (err < 0) 982 return err; 983 984 /* Assume the function group node does not change, 985 * only the widget nodes may change. 986 */ 987 kfree(codec->wcaps); 988 fg = codec->core.afg ? codec->core.afg : codec->core.mfg; 989 err = read_widget_caps(codec, fg); 990 if (err < 0) 991 return err; 992 993 snd_array_free(&codec->init_pins); 994 err = read_pin_defaults(codec); 995 996 return err; 997 } 998 EXPORT_SYMBOL_GPL(snd_hda_codec_update_widgets); 999 1000 /* update the stream-id if changed */ 1001 static void update_pcm_stream_id(struct hda_codec *codec, 1002 struct hda_cvt_setup *p, hda_nid_t nid, 1003 u32 stream_tag, int channel_id) 1004 { 1005 unsigned int oldval, newval; 1006 1007 if (p->stream_tag != stream_tag || p->channel_id != channel_id) { 1008 oldval = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONV, 0); 1009 newval = (stream_tag << 4) | channel_id; 1010 if (oldval != newval) 1011 snd_hda_codec_write(codec, nid, 0, 1012 AC_VERB_SET_CHANNEL_STREAMID, 1013 newval); 1014 p->stream_tag = stream_tag; 1015 p->channel_id = channel_id; 1016 } 1017 } 1018 1019 /* update the format-id if changed */ 1020 static void update_pcm_format(struct hda_codec *codec, struct hda_cvt_setup *p, 1021 hda_nid_t nid, int format) 1022 { 1023 unsigned int oldval; 1024 1025 if (p->format_id != format) { 1026 oldval = snd_hda_codec_read(codec, nid, 0, 1027 AC_VERB_GET_STREAM_FORMAT, 0); 1028 if (oldval != format) { 1029 msleep(1); 1030 snd_hda_codec_write(codec, nid, 0, 1031 AC_VERB_SET_STREAM_FORMAT, 1032 format); 1033 } 1034 p->format_id = format; 1035 } 1036 } 1037 1038 /** 1039 * snd_hda_codec_setup_stream - set up the codec for streaming 1040 * @codec: the CODEC to set up 1041 * @nid: the NID to set up 1042 * @stream_tag: stream tag to pass, it's between 0x1 and 0xf. 1043 * @channel_id: channel id to pass, zero based. 1044 * @format: stream format. 1045 */ 1046 void snd_hda_codec_setup_stream(struct hda_codec *codec, hda_nid_t nid, 1047 u32 stream_tag, 1048 int channel_id, int format) 1049 { 1050 struct hda_codec *c; 1051 struct hda_cvt_setup *p; 1052 int type; 1053 int i; 1054 1055 if (!nid) 1056 return; 1057 1058 codec_dbg(codec, 1059 "hda_codec_setup_stream: NID=0x%x, stream=0x%x, channel=%d, format=0x%x\n", 1060 nid, stream_tag, channel_id, format); 1061 p = get_hda_cvt_setup(codec, nid); 1062 if (!p) 1063 return; 1064 1065 if (codec->patch_ops.stream_pm) 1066 codec->patch_ops.stream_pm(codec, nid, true); 1067 if (codec->pcm_format_first) 1068 update_pcm_format(codec, p, nid, format); 1069 update_pcm_stream_id(codec, p, nid, stream_tag, channel_id); 1070 if (!codec->pcm_format_first) 1071 update_pcm_format(codec, p, nid, format); 1072 1073 p->active = 1; 1074 p->dirty = 0; 1075 1076 /* make other inactive cvts with the same stream-tag dirty */ 1077 type = get_wcaps_type(get_wcaps(codec, nid)); 1078 list_for_each_codec(c, codec->bus) { 1079 for (i = 0; i < c->cvt_setups.used; i++) { 1080 p = snd_array_elem(&c->cvt_setups, i); 1081 if (!p->active && p->stream_tag == stream_tag && 1082 get_wcaps_type(get_wcaps(c, p->nid)) == type) 1083 p->dirty = 1; 1084 } 1085 } 1086 } 1087 EXPORT_SYMBOL_GPL(snd_hda_codec_setup_stream); 1088 1089 static void really_cleanup_stream(struct hda_codec *codec, 1090 struct hda_cvt_setup *q); 1091 1092 /** 1093 * __snd_hda_codec_cleanup_stream - clean up the codec for closing 1094 * @codec: the CODEC to clean up 1095 * @nid: the NID to clean up 1096 * @do_now: really clean up the stream instead of clearing the active flag 1097 */ 1098 void __snd_hda_codec_cleanup_stream(struct hda_codec *codec, hda_nid_t nid, 1099 int do_now) 1100 { 1101 struct hda_cvt_setup *p; 1102 1103 if (!nid) 1104 return; 1105 1106 if (codec->no_sticky_stream) 1107 do_now = 1; 1108 1109 codec_dbg(codec, "hda_codec_cleanup_stream: NID=0x%x\n", nid); 1110 p = get_hda_cvt_setup(codec, nid); 1111 if (p) { 1112 /* here we just clear the active flag when do_now isn't set; 1113 * actual clean-ups will be done later in 1114 * purify_inactive_streams() called from snd_hda_codec_prpapre() 1115 */ 1116 if (do_now) 1117 really_cleanup_stream(codec, p); 1118 else 1119 p->active = 0; 1120 } 1121 } 1122 EXPORT_SYMBOL_GPL(__snd_hda_codec_cleanup_stream); 1123 1124 static void really_cleanup_stream(struct hda_codec *codec, 1125 struct hda_cvt_setup *q) 1126 { 1127 hda_nid_t nid = q->nid; 1128 if (q->stream_tag || q->channel_id) 1129 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_CHANNEL_STREAMID, 0); 1130 if (q->format_id) 1131 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_STREAM_FORMAT, 0 1132 ); 1133 memset(q, 0, sizeof(*q)); 1134 q->nid = nid; 1135 if (codec->patch_ops.stream_pm) 1136 codec->patch_ops.stream_pm(codec, nid, false); 1137 } 1138 1139 /* clean up the all conflicting obsolete streams */ 1140 static void purify_inactive_streams(struct hda_codec *codec) 1141 { 1142 struct hda_codec *c; 1143 int i; 1144 1145 list_for_each_codec(c, codec->bus) { 1146 for (i = 0; i < c->cvt_setups.used; i++) { 1147 struct hda_cvt_setup *p; 1148 p = snd_array_elem(&c->cvt_setups, i); 1149 if (p->dirty) 1150 really_cleanup_stream(c, p); 1151 } 1152 } 1153 } 1154 1155 #ifdef CONFIG_PM 1156 /* clean up all streams; called from suspend */ 1157 static void hda_cleanup_all_streams(struct hda_codec *codec) 1158 { 1159 int i; 1160 1161 for (i = 0; i < codec->cvt_setups.used; i++) { 1162 struct hda_cvt_setup *p = snd_array_elem(&codec->cvt_setups, i); 1163 if (p->stream_tag) 1164 really_cleanup_stream(codec, p); 1165 } 1166 } 1167 #endif 1168 1169 /* 1170 * amp access functions 1171 */ 1172 1173 /** 1174 * query_amp_caps - query AMP capabilities 1175 * @codec: the HD-auio codec 1176 * @nid: the NID to query 1177 * @direction: either #HDA_INPUT or #HDA_OUTPUT 1178 * 1179 * Query AMP capabilities for the given widget and direction. 1180 * Returns the obtained capability bits. 1181 * 1182 * When cap bits have been already read, this doesn't read again but 1183 * returns the cached value. 1184 */ 1185 u32 query_amp_caps(struct hda_codec *codec, hda_nid_t nid, int direction) 1186 { 1187 if (!(get_wcaps(codec, nid) & AC_WCAP_AMP_OVRD)) 1188 nid = codec->core.afg; 1189 return snd_hda_param_read(codec, nid, 1190 direction == HDA_OUTPUT ? 1191 AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP); 1192 } 1193 EXPORT_SYMBOL_GPL(query_amp_caps); 1194 1195 /** 1196 * snd_hda_check_amp_caps - query AMP capabilities 1197 * @codec: the HD-audio codec 1198 * @nid: the NID to query 1199 * @dir: either #HDA_INPUT or #HDA_OUTPUT 1200 * @bits: bit mask to check the result 1201 * 1202 * Check whether the widget has the given amp capability for the direction. 1203 */ 1204 bool snd_hda_check_amp_caps(struct hda_codec *codec, hda_nid_t nid, 1205 int dir, unsigned int bits) 1206 { 1207 if (!nid) 1208 return false; 1209 if (get_wcaps(codec, nid) & (1 << (dir + 1))) 1210 if (query_amp_caps(codec, nid, dir) & bits) 1211 return true; 1212 return false; 1213 } 1214 EXPORT_SYMBOL_GPL(snd_hda_check_amp_caps); 1215 1216 /** 1217 * snd_hda_override_amp_caps - Override the AMP capabilities 1218 * @codec: the CODEC to clean up 1219 * @nid: the NID to clean up 1220 * @dir: either #HDA_INPUT or #HDA_OUTPUT 1221 * @caps: the capability bits to set 1222 * 1223 * Override the cached AMP caps bits value by the given one. 1224 * This function is useful if the driver needs to adjust the AMP ranges, 1225 * e.g. limit to 0dB, etc. 1226 * 1227 * Returns zero if successful or a negative error code. 1228 */ 1229 int snd_hda_override_amp_caps(struct hda_codec *codec, hda_nid_t nid, int dir, 1230 unsigned int caps) 1231 { 1232 unsigned int parm; 1233 1234 snd_hda_override_wcaps(codec, nid, 1235 get_wcaps(codec, nid) | AC_WCAP_AMP_OVRD); 1236 parm = dir == HDA_OUTPUT ? AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP; 1237 return snd_hdac_override_parm(&codec->core, nid, parm, caps); 1238 } 1239 EXPORT_SYMBOL_GPL(snd_hda_override_amp_caps); 1240 1241 /** 1242 * snd_hda_codec_amp_update - update the AMP mono value 1243 * @codec: HD-audio codec 1244 * @nid: NID to read the AMP value 1245 * @ch: channel to update (0 or 1) 1246 * @dir: #HDA_INPUT or #HDA_OUTPUT 1247 * @idx: the index value (only for input direction) 1248 * @mask: bit mask to set 1249 * @val: the bits value to set 1250 * 1251 * Update the AMP values for the given channel, direction and index. 1252 */ 1253 int snd_hda_codec_amp_update(struct hda_codec *codec, hda_nid_t nid, 1254 int ch, int dir, int idx, int mask, int val) 1255 { 1256 unsigned int cmd = snd_hdac_regmap_encode_amp(nid, ch, dir, idx); 1257 1258 /* enable fake mute if no h/w mute but min=mute */ 1259 if ((query_amp_caps(codec, nid, dir) & 1260 (AC_AMPCAP_MUTE | AC_AMPCAP_MIN_MUTE)) == AC_AMPCAP_MIN_MUTE) 1261 cmd |= AC_AMP_FAKE_MUTE; 1262 return snd_hdac_regmap_update_raw(&codec->core, cmd, mask, val); 1263 } 1264 EXPORT_SYMBOL_GPL(snd_hda_codec_amp_update); 1265 1266 /** 1267 * snd_hda_codec_amp_stereo - update the AMP stereo values 1268 * @codec: HD-audio codec 1269 * @nid: NID to read the AMP value 1270 * @direction: #HDA_INPUT or #HDA_OUTPUT 1271 * @idx: the index value (only for input direction) 1272 * @mask: bit mask to set 1273 * @val: the bits value to set 1274 * 1275 * Update the AMP values like snd_hda_codec_amp_update(), but for a 1276 * stereo widget with the same mask and value. 1277 */ 1278 int snd_hda_codec_amp_stereo(struct hda_codec *codec, hda_nid_t nid, 1279 int direction, int idx, int mask, int val) 1280 { 1281 int ch, ret = 0; 1282 1283 if (snd_BUG_ON(mask & ~0xff)) 1284 mask &= 0xff; 1285 for (ch = 0; ch < 2; ch++) 1286 ret |= snd_hda_codec_amp_update(codec, nid, ch, direction, 1287 idx, mask, val); 1288 return ret; 1289 } 1290 EXPORT_SYMBOL_GPL(snd_hda_codec_amp_stereo); 1291 1292 /** 1293 * snd_hda_codec_amp_init - initialize the AMP value 1294 * @codec: the HDA codec 1295 * @nid: NID to read the AMP value 1296 * @ch: channel (left=0 or right=1) 1297 * @dir: #HDA_INPUT or #HDA_OUTPUT 1298 * @idx: the index value (only for input direction) 1299 * @mask: bit mask to set 1300 * @val: the bits value to set 1301 * 1302 * Works like snd_hda_codec_amp_update() but it writes the value only at 1303 * the first access. If the amp was already initialized / updated beforehand, 1304 * this does nothing. 1305 */ 1306 int snd_hda_codec_amp_init(struct hda_codec *codec, hda_nid_t nid, int ch, 1307 int dir, int idx, int mask, int val) 1308 { 1309 int orig; 1310 1311 if (!codec->core.regmap) 1312 return -EINVAL; 1313 regcache_cache_only(codec->core.regmap, true); 1314 orig = snd_hda_codec_amp_read(codec, nid, ch, dir, idx); 1315 regcache_cache_only(codec->core.regmap, false); 1316 if (orig >= 0) 1317 return 0; 1318 return snd_hda_codec_amp_update(codec, nid, ch, dir, idx, mask, val); 1319 } 1320 EXPORT_SYMBOL_GPL(snd_hda_codec_amp_init); 1321 1322 /** 1323 * snd_hda_codec_amp_init_stereo - initialize the stereo AMP value 1324 * @codec: the HDA codec 1325 * @nid: NID to read the AMP value 1326 * @dir: #HDA_INPUT or #HDA_OUTPUT 1327 * @idx: the index value (only for input direction) 1328 * @mask: bit mask to set 1329 * @val: the bits value to set 1330 * 1331 * Call snd_hda_codec_amp_init() for both stereo channels. 1332 */ 1333 int snd_hda_codec_amp_init_stereo(struct hda_codec *codec, hda_nid_t nid, 1334 int dir, int idx, int mask, int val) 1335 { 1336 int ch, ret = 0; 1337 1338 if (snd_BUG_ON(mask & ~0xff)) 1339 mask &= 0xff; 1340 for (ch = 0; ch < 2; ch++) 1341 ret |= snd_hda_codec_amp_init(codec, nid, ch, dir, 1342 idx, mask, val); 1343 return ret; 1344 } 1345 EXPORT_SYMBOL_GPL(snd_hda_codec_amp_init_stereo); 1346 1347 static u32 get_amp_max_value(struct hda_codec *codec, hda_nid_t nid, int dir, 1348 unsigned int ofs) 1349 { 1350 u32 caps = query_amp_caps(codec, nid, dir); 1351 /* get num steps */ 1352 caps = (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT; 1353 if (ofs < caps) 1354 caps -= ofs; 1355 return caps; 1356 } 1357 1358 /** 1359 * snd_hda_mixer_amp_volume_info - Info callback for a standard AMP mixer 1360 * @kcontrol: referred ctl element 1361 * @uinfo: pointer to get/store the data 1362 * 1363 * The control element is supposed to have the private_value field 1364 * set up via HDA_COMPOSE_AMP_VAL*() or related macros. 1365 */ 1366 int snd_hda_mixer_amp_volume_info(struct snd_kcontrol *kcontrol, 1367 struct snd_ctl_elem_info *uinfo) 1368 { 1369 struct hda_codec *codec = snd_kcontrol_chip(kcontrol); 1370 u16 nid = get_amp_nid(kcontrol); 1371 u8 chs = get_amp_channels(kcontrol); 1372 int dir = get_amp_direction(kcontrol); 1373 unsigned int ofs = get_amp_offset(kcontrol); 1374 1375 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; 1376 uinfo->count = chs == 3 ? 2 : 1; 1377 uinfo->value.integer.min = 0; 1378 uinfo->value.integer.max = get_amp_max_value(codec, nid, dir, ofs); 1379 if (!uinfo->value.integer.max) { 1380 codec_warn(codec, 1381 "num_steps = 0 for NID=0x%x (ctl = %s)\n", 1382 nid, kcontrol->id.name); 1383 return -EINVAL; 1384 } 1385 return 0; 1386 } 1387 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_volume_info); 1388 1389 1390 static inline unsigned int 1391 read_amp_value(struct hda_codec *codec, hda_nid_t nid, 1392 int ch, int dir, int idx, unsigned int ofs) 1393 { 1394 unsigned int val; 1395 val = snd_hda_codec_amp_read(codec, nid, ch, dir, idx); 1396 val &= HDA_AMP_VOLMASK; 1397 if (val >= ofs) 1398 val -= ofs; 1399 else 1400 val = 0; 1401 return val; 1402 } 1403 1404 static inline int 1405 update_amp_value(struct hda_codec *codec, hda_nid_t nid, 1406 int ch, int dir, int idx, unsigned int ofs, 1407 unsigned int val) 1408 { 1409 unsigned int maxval; 1410 1411 if (val > 0) 1412 val += ofs; 1413 /* ofs = 0: raw max value */ 1414 maxval = get_amp_max_value(codec, nid, dir, 0); 1415 if (val > maxval) 1416 val = maxval; 1417 return snd_hda_codec_amp_update(codec, nid, ch, dir, idx, 1418 HDA_AMP_VOLMASK, val); 1419 } 1420 1421 /** 1422 * snd_hda_mixer_amp_volume_get - Get callback for a standard AMP mixer volume 1423 * @kcontrol: ctl element 1424 * @ucontrol: pointer to get/store the data 1425 * 1426 * The control element is supposed to have the private_value field 1427 * set up via HDA_COMPOSE_AMP_VAL*() or related macros. 1428 */ 1429 int snd_hda_mixer_amp_volume_get(struct snd_kcontrol *kcontrol, 1430 struct snd_ctl_elem_value *ucontrol) 1431 { 1432 struct hda_codec *codec = snd_kcontrol_chip(kcontrol); 1433 hda_nid_t nid = get_amp_nid(kcontrol); 1434 int chs = get_amp_channels(kcontrol); 1435 int dir = get_amp_direction(kcontrol); 1436 int idx = get_amp_index(kcontrol); 1437 unsigned int ofs = get_amp_offset(kcontrol); 1438 long *valp = ucontrol->value.integer.value; 1439 1440 if (chs & 1) 1441 *valp++ = read_amp_value(codec, nid, 0, dir, idx, ofs); 1442 if (chs & 2) 1443 *valp = read_amp_value(codec, nid, 1, dir, idx, ofs); 1444 return 0; 1445 } 1446 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_volume_get); 1447 1448 /** 1449 * snd_hda_mixer_amp_volume_put - Put callback for a standard AMP mixer volume 1450 * @kcontrol: ctl element 1451 * @ucontrol: pointer to get/store the data 1452 * 1453 * The control element is supposed to have the private_value field 1454 * set up via HDA_COMPOSE_AMP_VAL*() or related macros. 1455 */ 1456 int snd_hda_mixer_amp_volume_put(struct snd_kcontrol *kcontrol, 1457 struct snd_ctl_elem_value *ucontrol) 1458 { 1459 struct hda_codec *codec = snd_kcontrol_chip(kcontrol); 1460 hda_nid_t nid = get_amp_nid(kcontrol); 1461 int chs = get_amp_channels(kcontrol); 1462 int dir = get_amp_direction(kcontrol); 1463 int idx = get_amp_index(kcontrol); 1464 unsigned int ofs = get_amp_offset(kcontrol); 1465 long *valp = ucontrol->value.integer.value; 1466 int change = 0; 1467 1468 if (chs & 1) { 1469 change = update_amp_value(codec, nid, 0, dir, idx, ofs, *valp); 1470 valp++; 1471 } 1472 if (chs & 2) 1473 change |= update_amp_value(codec, nid, 1, dir, idx, ofs, *valp); 1474 return change; 1475 } 1476 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_volume_put); 1477 1478 /* inquiry the amp caps and convert to TLV */ 1479 static void get_ctl_amp_tlv(struct snd_kcontrol *kcontrol, unsigned int *tlv) 1480 { 1481 struct hda_codec *codec = snd_kcontrol_chip(kcontrol); 1482 hda_nid_t nid = get_amp_nid(kcontrol); 1483 int dir = get_amp_direction(kcontrol); 1484 unsigned int ofs = get_amp_offset(kcontrol); 1485 bool min_mute = get_amp_min_mute(kcontrol); 1486 u32 caps, val1, val2; 1487 1488 caps = query_amp_caps(codec, nid, dir); 1489 val2 = (caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT; 1490 val2 = (val2 + 1) * 25; 1491 val1 = -((caps & AC_AMPCAP_OFFSET) >> AC_AMPCAP_OFFSET_SHIFT); 1492 val1 += ofs; 1493 val1 = ((int)val1) * ((int)val2); 1494 if (min_mute || (caps & AC_AMPCAP_MIN_MUTE)) 1495 val2 |= TLV_DB_SCALE_MUTE; 1496 tlv[0] = SNDRV_CTL_TLVT_DB_SCALE; 1497 tlv[1] = 2 * sizeof(unsigned int); 1498 tlv[2] = val1; 1499 tlv[3] = val2; 1500 } 1501 1502 /** 1503 * snd_hda_mixer_amp_tlv - TLV callback for a standard AMP mixer volume 1504 * @kcontrol: ctl element 1505 * @op_flag: operation flag 1506 * @size: byte size of input TLV 1507 * @_tlv: TLV data 1508 * 1509 * The control element is supposed to have the private_value field 1510 * set up via HDA_COMPOSE_AMP_VAL*() or related macros. 1511 */ 1512 int snd_hda_mixer_amp_tlv(struct snd_kcontrol *kcontrol, int op_flag, 1513 unsigned int size, unsigned int __user *_tlv) 1514 { 1515 unsigned int tlv[4]; 1516 1517 if (size < 4 * sizeof(unsigned int)) 1518 return -ENOMEM; 1519 get_ctl_amp_tlv(kcontrol, tlv); 1520 if (copy_to_user(_tlv, tlv, sizeof(tlv))) 1521 return -EFAULT; 1522 return 0; 1523 } 1524 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_tlv); 1525 1526 /** 1527 * snd_hda_set_vmaster_tlv - Set TLV for a virtual master control 1528 * @codec: HD-audio codec 1529 * @nid: NID of a reference widget 1530 * @dir: #HDA_INPUT or #HDA_OUTPUT 1531 * @tlv: TLV data to be stored, at least 4 elements 1532 * 1533 * Set (static) TLV data for a virtual master volume using the AMP caps 1534 * obtained from the reference NID. 1535 * The volume range is recalculated as if the max volume is 0dB. 1536 */ 1537 void snd_hda_set_vmaster_tlv(struct hda_codec *codec, hda_nid_t nid, int dir, 1538 unsigned int *tlv) 1539 { 1540 u32 caps; 1541 int nums, step; 1542 1543 caps = query_amp_caps(codec, nid, dir); 1544 nums = (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT; 1545 step = (caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT; 1546 step = (step + 1) * 25; 1547 tlv[0] = SNDRV_CTL_TLVT_DB_SCALE; 1548 tlv[1] = 2 * sizeof(unsigned int); 1549 tlv[2] = -nums * step; 1550 tlv[3] = step; 1551 } 1552 EXPORT_SYMBOL_GPL(snd_hda_set_vmaster_tlv); 1553 1554 /* find a mixer control element with the given name */ 1555 static struct snd_kcontrol * 1556 find_mixer_ctl(struct hda_codec *codec, const char *name, int dev, int idx) 1557 { 1558 struct snd_ctl_elem_id id; 1559 memset(&id, 0, sizeof(id)); 1560 id.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1561 id.device = dev; 1562 id.index = idx; 1563 if (snd_BUG_ON(strlen(name) >= sizeof(id.name))) 1564 return NULL; 1565 strcpy(id.name, name); 1566 return snd_ctl_find_id(codec->card, &id); 1567 } 1568 1569 /** 1570 * snd_hda_find_mixer_ctl - Find a mixer control element with the given name 1571 * @codec: HD-audio codec 1572 * @name: ctl id name string 1573 * 1574 * Get the control element with the given id string and IFACE_MIXER. 1575 */ 1576 struct snd_kcontrol *snd_hda_find_mixer_ctl(struct hda_codec *codec, 1577 const char *name) 1578 { 1579 return find_mixer_ctl(codec, name, 0, 0); 1580 } 1581 EXPORT_SYMBOL_GPL(snd_hda_find_mixer_ctl); 1582 1583 static int find_empty_mixer_ctl_idx(struct hda_codec *codec, const char *name, 1584 int start_idx) 1585 { 1586 int i, idx; 1587 /* 16 ctlrs should be large enough */ 1588 for (i = 0, idx = start_idx; i < 16; i++, idx++) { 1589 if (!find_mixer_ctl(codec, name, 0, idx)) 1590 return idx; 1591 } 1592 return -EBUSY; 1593 } 1594 1595 /** 1596 * snd_hda_ctl_add - Add a control element and assign to the codec 1597 * @codec: HD-audio codec 1598 * @nid: corresponding NID (optional) 1599 * @kctl: the control element to assign 1600 * 1601 * Add the given control element to an array inside the codec instance. 1602 * All control elements belonging to a codec are supposed to be added 1603 * by this function so that a proper clean-up works at the free or 1604 * reconfiguration time. 1605 * 1606 * If non-zero @nid is passed, the NID is assigned to the control element. 1607 * The assignment is shown in the codec proc file. 1608 * 1609 * snd_hda_ctl_add() checks the control subdev id field whether 1610 * #HDA_SUBDEV_NID_FLAG bit is set. If set (and @nid is zero), the lower 1611 * bits value is taken as the NID to assign. The #HDA_NID_ITEM_AMP bit 1612 * specifies if kctl->private_value is a HDA amplifier value. 1613 */ 1614 int snd_hda_ctl_add(struct hda_codec *codec, hda_nid_t nid, 1615 struct snd_kcontrol *kctl) 1616 { 1617 int err; 1618 unsigned short flags = 0; 1619 struct hda_nid_item *item; 1620 1621 if (kctl->id.subdevice & HDA_SUBDEV_AMP_FLAG) { 1622 flags |= HDA_NID_ITEM_AMP; 1623 if (nid == 0) 1624 nid = get_amp_nid_(kctl->private_value); 1625 } 1626 if ((kctl->id.subdevice & HDA_SUBDEV_NID_FLAG) != 0 && nid == 0) 1627 nid = kctl->id.subdevice & 0xffff; 1628 if (kctl->id.subdevice & (HDA_SUBDEV_NID_FLAG|HDA_SUBDEV_AMP_FLAG)) 1629 kctl->id.subdevice = 0; 1630 err = snd_ctl_add(codec->card, kctl); 1631 if (err < 0) 1632 return err; 1633 item = snd_array_new(&codec->mixers); 1634 if (!item) 1635 return -ENOMEM; 1636 item->kctl = kctl; 1637 item->nid = nid; 1638 item->flags = flags; 1639 return 0; 1640 } 1641 EXPORT_SYMBOL_GPL(snd_hda_ctl_add); 1642 1643 /** 1644 * snd_hda_add_nid - Assign a NID to a control element 1645 * @codec: HD-audio codec 1646 * @nid: corresponding NID (optional) 1647 * @kctl: the control element to assign 1648 * @index: index to kctl 1649 * 1650 * Add the given control element to an array inside the codec instance. 1651 * This function is used when #snd_hda_ctl_add cannot be used for 1:1 1652 * NID:KCTL mapping - for example "Capture Source" selector. 1653 */ 1654 int snd_hda_add_nid(struct hda_codec *codec, struct snd_kcontrol *kctl, 1655 unsigned int index, hda_nid_t nid) 1656 { 1657 struct hda_nid_item *item; 1658 1659 if (nid > 0) { 1660 item = snd_array_new(&codec->nids); 1661 if (!item) 1662 return -ENOMEM; 1663 item->kctl = kctl; 1664 item->index = index; 1665 item->nid = nid; 1666 return 0; 1667 } 1668 codec_err(codec, "no NID for mapping control %s:%d:%d\n", 1669 kctl->id.name, kctl->id.index, index); 1670 return -EINVAL; 1671 } 1672 EXPORT_SYMBOL_GPL(snd_hda_add_nid); 1673 1674 /** 1675 * snd_hda_ctls_clear - Clear all controls assigned to the given codec 1676 * @codec: HD-audio codec 1677 */ 1678 void snd_hda_ctls_clear(struct hda_codec *codec) 1679 { 1680 int i; 1681 struct hda_nid_item *items = codec->mixers.list; 1682 for (i = 0; i < codec->mixers.used; i++) 1683 snd_ctl_remove(codec->card, items[i].kctl); 1684 snd_array_free(&codec->mixers); 1685 snd_array_free(&codec->nids); 1686 } 1687 1688 /** 1689 * snd_hda_lock_devices - pseudo device locking 1690 * @bus: the BUS 1691 * 1692 * toggle card->shutdown to allow/disallow the device access (as a hack) 1693 */ 1694 int snd_hda_lock_devices(struct hda_bus *bus) 1695 { 1696 struct snd_card *card = bus->card; 1697 struct hda_codec *codec; 1698 1699 spin_lock(&card->files_lock); 1700 if (card->shutdown) 1701 goto err_unlock; 1702 card->shutdown = 1; 1703 if (!list_empty(&card->ctl_files)) 1704 goto err_clear; 1705 1706 list_for_each_codec(codec, bus) { 1707 struct hda_pcm *cpcm; 1708 list_for_each_entry(cpcm, &codec->pcm_list_head, list) { 1709 if (!cpcm->pcm) 1710 continue; 1711 if (cpcm->pcm->streams[0].substream_opened || 1712 cpcm->pcm->streams[1].substream_opened) 1713 goto err_clear; 1714 } 1715 } 1716 spin_unlock(&card->files_lock); 1717 return 0; 1718 1719 err_clear: 1720 card->shutdown = 0; 1721 err_unlock: 1722 spin_unlock(&card->files_lock); 1723 return -EINVAL; 1724 } 1725 EXPORT_SYMBOL_GPL(snd_hda_lock_devices); 1726 1727 /** 1728 * snd_hda_unlock_devices - pseudo device unlocking 1729 * @bus: the BUS 1730 */ 1731 void snd_hda_unlock_devices(struct hda_bus *bus) 1732 { 1733 struct snd_card *card = bus->card; 1734 1735 spin_lock(&card->files_lock); 1736 card->shutdown = 0; 1737 spin_unlock(&card->files_lock); 1738 } 1739 EXPORT_SYMBOL_GPL(snd_hda_unlock_devices); 1740 1741 /** 1742 * snd_hda_codec_reset - Clear all objects assigned to the codec 1743 * @codec: HD-audio codec 1744 * 1745 * This frees the all PCM and control elements assigned to the codec, and 1746 * clears the caches and restores the pin default configurations. 1747 * 1748 * When a device is being used, it returns -EBSY. If successfully freed, 1749 * returns zero. 1750 */ 1751 int snd_hda_codec_reset(struct hda_codec *codec) 1752 { 1753 struct hda_bus *bus = codec->bus; 1754 1755 if (snd_hda_lock_devices(bus) < 0) 1756 return -EBUSY; 1757 1758 /* OK, let it free */ 1759 snd_hdac_device_unregister(&codec->core); 1760 1761 /* allow device access again */ 1762 snd_hda_unlock_devices(bus); 1763 return 0; 1764 } 1765 1766 typedef int (*map_slave_func_t)(struct hda_codec *, void *, struct snd_kcontrol *); 1767 1768 /* apply the function to all matching slave ctls in the mixer list */ 1769 static int map_slaves(struct hda_codec *codec, const char * const *slaves, 1770 const char *suffix, map_slave_func_t func, void *data) 1771 { 1772 struct hda_nid_item *items; 1773 const char * const *s; 1774 int i, err; 1775 1776 items = codec->mixers.list; 1777 for (i = 0; i < codec->mixers.used; i++) { 1778 struct snd_kcontrol *sctl = items[i].kctl; 1779 if (!sctl || sctl->id.iface != SNDRV_CTL_ELEM_IFACE_MIXER) 1780 continue; 1781 for (s = slaves; *s; s++) { 1782 char tmpname[sizeof(sctl->id.name)]; 1783 const char *name = *s; 1784 if (suffix) { 1785 snprintf(tmpname, sizeof(tmpname), "%s %s", 1786 name, suffix); 1787 name = tmpname; 1788 } 1789 if (!strcmp(sctl->id.name, name)) { 1790 err = func(codec, data, sctl); 1791 if (err) 1792 return err; 1793 break; 1794 } 1795 } 1796 } 1797 return 0; 1798 } 1799 1800 static int check_slave_present(struct hda_codec *codec, 1801 void *data, struct snd_kcontrol *sctl) 1802 { 1803 return 1; 1804 } 1805 1806 /* call kctl->put with the given value(s) */ 1807 static int put_kctl_with_value(struct snd_kcontrol *kctl, int val) 1808 { 1809 struct snd_ctl_elem_value *ucontrol; 1810 ucontrol = kzalloc(sizeof(*ucontrol), GFP_KERNEL); 1811 if (!ucontrol) 1812 return -ENOMEM; 1813 ucontrol->value.integer.value[0] = val; 1814 ucontrol->value.integer.value[1] = val; 1815 kctl->put(kctl, ucontrol); 1816 kfree(ucontrol); 1817 return 0; 1818 } 1819 1820 struct slave_init_arg { 1821 struct hda_codec *codec; 1822 int step; 1823 }; 1824 1825 /* initialize the slave volume with 0dB via snd_ctl_apply_vmaster_slaves() */ 1826 static int init_slave_0dB(struct snd_kcontrol *slave, 1827 struct snd_kcontrol *kctl, 1828 void *_arg) 1829 { 1830 struct slave_init_arg *arg = _arg; 1831 int _tlv[4]; 1832 const int *tlv = NULL; 1833 int step; 1834 int val; 1835 1836 if (kctl->vd[0].access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) { 1837 if (kctl->tlv.c != snd_hda_mixer_amp_tlv) { 1838 codec_err(arg->codec, 1839 "Unexpected TLV callback for slave %s:%d\n", 1840 kctl->id.name, kctl->id.index); 1841 return 0; /* ignore */ 1842 } 1843 get_ctl_amp_tlv(kctl, _tlv); 1844 tlv = _tlv; 1845 } else if (kctl->vd[0].access & SNDRV_CTL_ELEM_ACCESS_TLV_READ) 1846 tlv = kctl->tlv.p; 1847 1848 if (!tlv || tlv[0] != SNDRV_CTL_TLVT_DB_SCALE) 1849 return 0; 1850 1851 step = tlv[3]; 1852 step &= ~TLV_DB_SCALE_MUTE; 1853 if (!step) 1854 return 0; 1855 if (arg->step && arg->step != step) { 1856 codec_err(arg->codec, 1857 "Mismatching dB step for vmaster slave (%d!=%d)\n", 1858 arg->step, step); 1859 return 0; 1860 } 1861 1862 arg->step = step; 1863 val = -tlv[2] / step; 1864 if (val > 0) { 1865 put_kctl_with_value(slave, val); 1866 return val; 1867 } 1868 1869 return 0; 1870 } 1871 1872 /* unmute the slave via snd_ctl_apply_vmaster_slaves() */ 1873 static int init_slave_unmute(struct snd_kcontrol *slave, 1874 struct snd_kcontrol *kctl, 1875 void *_arg) 1876 { 1877 return put_kctl_with_value(slave, 1); 1878 } 1879 1880 static int add_slave(struct hda_codec *codec, 1881 void *data, struct snd_kcontrol *slave) 1882 { 1883 return snd_ctl_add_slave(data, slave); 1884 } 1885 1886 /** 1887 * __snd_hda_add_vmaster - create a virtual master control and add slaves 1888 * @codec: HD-audio codec 1889 * @name: vmaster control name 1890 * @tlv: TLV data (optional) 1891 * @slaves: slave control names (optional) 1892 * @suffix: suffix string to each slave name (optional) 1893 * @init_slave_vol: initialize slaves to unmute/0dB 1894 * @ctl_ret: store the vmaster kcontrol in return 1895 * 1896 * Create a virtual master control with the given name. The TLV data 1897 * must be either NULL or a valid data. 1898 * 1899 * @slaves is a NULL-terminated array of strings, each of which is a 1900 * slave control name. All controls with these names are assigned to 1901 * the new virtual master control. 1902 * 1903 * This function returns zero if successful or a negative error code. 1904 */ 1905 int __snd_hda_add_vmaster(struct hda_codec *codec, char *name, 1906 unsigned int *tlv, const char * const *slaves, 1907 const char *suffix, bool init_slave_vol, 1908 struct snd_kcontrol **ctl_ret) 1909 { 1910 struct snd_kcontrol *kctl; 1911 int err; 1912 1913 if (ctl_ret) 1914 *ctl_ret = NULL; 1915 1916 err = map_slaves(codec, slaves, suffix, check_slave_present, NULL); 1917 if (err != 1) { 1918 codec_dbg(codec, "No slave found for %s\n", name); 1919 return 0; 1920 } 1921 kctl = snd_ctl_make_virtual_master(name, tlv); 1922 if (!kctl) 1923 return -ENOMEM; 1924 err = snd_hda_ctl_add(codec, 0, kctl); 1925 if (err < 0) 1926 return err; 1927 1928 err = map_slaves(codec, slaves, suffix, add_slave, kctl); 1929 if (err < 0) 1930 return err; 1931 1932 /* init with master mute & zero volume */ 1933 put_kctl_with_value(kctl, 0); 1934 if (init_slave_vol) { 1935 struct slave_init_arg arg = { 1936 .codec = codec, 1937 .step = 0, 1938 }; 1939 snd_ctl_apply_vmaster_slaves(kctl, 1940 tlv ? init_slave_0dB : init_slave_unmute, 1941 &arg); 1942 } 1943 1944 if (ctl_ret) 1945 *ctl_ret = kctl; 1946 return 0; 1947 } 1948 EXPORT_SYMBOL_GPL(__snd_hda_add_vmaster); 1949 1950 /* 1951 * mute-LED control using vmaster 1952 */ 1953 static int vmaster_mute_mode_info(struct snd_kcontrol *kcontrol, 1954 struct snd_ctl_elem_info *uinfo) 1955 { 1956 static const char * const texts[] = { 1957 "On", "Off", "Follow Master" 1958 }; 1959 1960 return snd_ctl_enum_info(uinfo, 1, 3, texts); 1961 } 1962 1963 static int vmaster_mute_mode_get(struct snd_kcontrol *kcontrol, 1964 struct snd_ctl_elem_value *ucontrol) 1965 { 1966 struct hda_vmaster_mute_hook *hook = snd_kcontrol_chip(kcontrol); 1967 ucontrol->value.enumerated.item[0] = hook->mute_mode; 1968 return 0; 1969 } 1970 1971 static int vmaster_mute_mode_put(struct snd_kcontrol *kcontrol, 1972 struct snd_ctl_elem_value *ucontrol) 1973 { 1974 struct hda_vmaster_mute_hook *hook = snd_kcontrol_chip(kcontrol); 1975 unsigned int old_mode = hook->mute_mode; 1976 1977 hook->mute_mode = ucontrol->value.enumerated.item[0]; 1978 if (hook->mute_mode > HDA_VMUTE_FOLLOW_MASTER) 1979 hook->mute_mode = HDA_VMUTE_FOLLOW_MASTER; 1980 if (old_mode == hook->mute_mode) 1981 return 0; 1982 snd_hda_sync_vmaster_hook(hook); 1983 return 1; 1984 } 1985 1986 static const struct snd_kcontrol_new vmaster_mute_mode = { 1987 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 1988 .name = "Mute-LED Mode", 1989 .info = vmaster_mute_mode_info, 1990 .get = vmaster_mute_mode_get, 1991 .put = vmaster_mute_mode_put, 1992 }; 1993 1994 /* meta hook to call each driver's vmaster hook */ 1995 static void vmaster_hook(void *private_data, int enabled) 1996 { 1997 struct hda_vmaster_mute_hook *hook = private_data; 1998 1999 if (hook->mute_mode != HDA_VMUTE_FOLLOW_MASTER) 2000 enabled = hook->mute_mode; 2001 hook->hook(hook->codec, enabled); 2002 } 2003 2004 /** 2005 * snd_hda_add_vmaster_hook - Add a vmaster hook for mute-LED 2006 * @codec: the HDA codec 2007 * @hook: the vmaster hook object 2008 * @expose_enum_ctl: flag to create an enum ctl 2009 * 2010 * Add a mute-LED hook with the given vmaster switch kctl. 2011 * When @expose_enum_ctl is set, "Mute-LED Mode" control is automatically 2012 * created and associated with the given hook. 2013 */ 2014 int snd_hda_add_vmaster_hook(struct hda_codec *codec, 2015 struct hda_vmaster_mute_hook *hook, 2016 bool expose_enum_ctl) 2017 { 2018 struct snd_kcontrol *kctl; 2019 2020 if (!hook->hook || !hook->sw_kctl) 2021 return 0; 2022 hook->codec = codec; 2023 hook->mute_mode = HDA_VMUTE_FOLLOW_MASTER; 2024 snd_ctl_add_vmaster_hook(hook->sw_kctl, vmaster_hook, hook); 2025 if (!expose_enum_ctl) 2026 return 0; 2027 kctl = snd_ctl_new1(&vmaster_mute_mode, hook); 2028 if (!kctl) 2029 return -ENOMEM; 2030 return snd_hda_ctl_add(codec, 0, kctl); 2031 } 2032 EXPORT_SYMBOL_GPL(snd_hda_add_vmaster_hook); 2033 2034 /** 2035 * snd_hda_sync_vmaster_hook - Sync vmaster hook 2036 * @hook: the vmaster hook 2037 * 2038 * Call the hook with the current value for synchronization. 2039 * Should be called in init callback. 2040 */ 2041 void snd_hda_sync_vmaster_hook(struct hda_vmaster_mute_hook *hook) 2042 { 2043 if (!hook->hook || !hook->codec) 2044 return; 2045 /* don't call vmaster hook in the destructor since it might have 2046 * been already destroyed 2047 */ 2048 if (hook->codec->bus->shutdown) 2049 return; 2050 snd_ctl_sync_vmaster_hook(hook->sw_kctl); 2051 } 2052 EXPORT_SYMBOL_GPL(snd_hda_sync_vmaster_hook); 2053 2054 2055 /** 2056 * snd_hda_mixer_amp_switch_info - Info callback for a standard AMP mixer switch 2057 * @kcontrol: referred ctl element 2058 * @uinfo: pointer to get/store the data 2059 * 2060 * The control element is supposed to have the private_value field 2061 * set up via HDA_COMPOSE_AMP_VAL*() or related macros. 2062 */ 2063 int snd_hda_mixer_amp_switch_info(struct snd_kcontrol *kcontrol, 2064 struct snd_ctl_elem_info *uinfo) 2065 { 2066 int chs = get_amp_channels(kcontrol); 2067 2068 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; 2069 uinfo->count = chs == 3 ? 2 : 1; 2070 uinfo->value.integer.min = 0; 2071 uinfo->value.integer.max = 1; 2072 return 0; 2073 } 2074 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_switch_info); 2075 2076 /** 2077 * snd_hda_mixer_amp_switch_get - Get callback for a standard AMP mixer switch 2078 * @kcontrol: ctl element 2079 * @ucontrol: pointer to get/store the data 2080 * 2081 * The control element is supposed to have the private_value field 2082 * set up via HDA_COMPOSE_AMP_VAL*() or related macros. 2083 */ 2084 int snd_hda_mixer_amp_switch_get(struct snd_kcontrol *kcontrol, 2085 struct snd_ctl_elem_value *ucontrol) 2086 { 2087 struct hda_codec *codec = snd_kcontrol_chip(kcontrol); 2088 hda_nid_t nid = get_amp_nid(kcontrol); 2089 int chs = get_amp_channels(kcontrol); 2090 int dir = get_amp_direction(kcontrol); 2091 int idx = get_amp_index(kcontrol); 2092 long *valp = ucontrol->value.integer.value; 2093 2094 if (chs & 1) 2095 *valp++ = (snd_hda_codec_amp_read(codec, nid, 0, dir, idx) & 2096 HDA_AMP_MUTE) ? 0 : 1; 2097 if (chs & 2) 2098 *valp = (snd_hda_codec_amp_read(codec, nid, 1, dir, idx) & 2099 HDA_AMP_MUTE) ? 0 : 1; 2100 return 0; 2101 } 2102 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_switch_get); 2103 2104 /** 2105 * snd_hda_mixer_amp_switch_put - Put callback for a standard AMP mixer switch 2106 * @kcontrol: ctl element 2107 * @ucontrol: pointer to get/store the data 2108 * 2109 * The control element is supposed to have the private_value field 2110 * set up via HDA_COMPOSE_AMP_VAL*() or related macros. 2111 */ 2112 int snd_hda_mixer_amp_switch_put(struct snd_kcontrol *kcontrol, 2113 struct snd_ctl_elem_value *ucontrol) 2114 { 2115 struct hda_codec *codec = snd_kcontrol_chip(kcontrol); 2116 hda_nid_t nid = get_amp_nid(kcontrol); 2117 int chs = get_amp_channels(kcontrol); 2118 int dir = get_amp_direction(kcontrol); 2119 int idx = get_amp_index(kcontrol); 2120 long *valp = ucontrol->value.integer.value; 2121 int change = 0; 2122 2123 if (chs & 1) { 2124 change = snd_hda_codec_amp_update(codec, nid, 0, dir, idx, 2125 HDA_AMP_MUTE, 2126 *valp ? 0 : HDA_AMP_MUTE); 2127 valp++; 2128 } 2129 if (chs & 2) 2130 change |= snd_hda_codec_amp_update(codec, nid, 1, dir, idx, 2131 HDA_AMP_MUTE, 2132 *valp ? 0 : HDA_AMP_MUTE); 2133 hda_call_check_power_status(codec, nid); 2134 return change; 2135 } 2136 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_switch_put); 2137 2138 /* 2139 * SPDIF out controls 2140 */ 2141 2142 static int snd_hda_spdif_mask_info(struct snd_kcontrol *kcontrol, 2143 struct snd_ctl_elem_info *uinfo) 2144 { 2145 uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958; 2146 uinfo->count = 1; 2147 return 0; 2148 } 2149 2150 static int snd_hda_spdif_cmask_get(struct snd_kcontrol *kcontrol, 2151 struct snd_ctl_elem_value *ucontrol) 2152 { 2153 ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL | 2154 IEC958_AES0_NONAUDIO | 2155 IEC958_AES0_CON_EMPHASIS_5015 | 2156 IEC958_AES0_CON_NOT_COPYRIGHT; 2157 ucontrol->value.iec958.status[1] = IEC958_AES1_CON_CATEGORY | 2158 IEC958_AES1_CON_ORIGINAL; 2159 return 0; 2160 } 2161 2162 static int snd_hda_spdif_pmask_get(struct snd_kcontrol *kcontrol, 2163 struct snd_ctl_elem_value *ucontrol) 2164 { 2165 ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL | 2166 IEC958_AES0_NONAUDIO | 2167 IEC958_AES0_PRO_EMPHASIS_5015; 2168 return 0; 2169 } 2170 2171 static int snd_hda_spdif_default_get(struct snd_kcontrol *kcontrol, 2172 struct snd_ctl_elem_value *ucontrol) 2173 { 2174 struct hda_codec *codec = snd_kcontrol_chip(kcontrol); 2175 int idx = kcontrol->private_value; 2176 struct hda_spdif_out *spdif; 2177 2178 mutex_lock(&codec->spdif_mutex); 2179 spdif = snd_array_elem(&codec->spdif_out, idx); 2180 ucontrol->value.iec958.status[0] = spdif->status & 0xff; 2181 ucontrol->value.iec958.status[1] = (spdif->status >> 8) & 0xff; 2182 ucontrol->value.iec958.status[2] = (spdif->status >> 16) & 0xff; 2183 ucontrol->value.iec958.status[3] = (spdif->status >> 24) & 0xff; 2184 mutex_unlock(&codec->spdif_mutex); 2185 2186 return 0; 2187 } 2188 2189 /* convert from SPDIF status bits to HDA SPDIF bits 2190 * bit 0 (DigEn) is always set zero (to be filled later) 2191 */ 2192 static unsigned short convert_from_spdif_status(unsigned int sbits) 2193 { 2194 unsigned short val = 0; 2195 2196 if (sbits & IEC958_AES0_PROFESSIONAL) 2197 val |= AC_DIG1_PROFESSIONAL; 2198 if (sbits & IEC958_AES0_NONAUDIO) 2199 val |= AC_DIG1_NONAUDIO; 2200 if (sbits & IEC958_AES0_PROFESSIONAL) { 2201 if ((sbits & IEC958_AES0_PRO_EMPHASIS) == 2202 IEC958_AES0_PRO_EMPHASIS_5015) 2203 val |= AC_DIG1_EMPHASIS; 2204 } else { 2205 if ((sbits & IEC958_AES0_CON_EMPHASIS) == 2206 IEC958_AES0_CON_EMPHASIS_5015) 2207 val |= AC_DIG1_EMPHASIS; 2208 if (!(sbits & IEC958_AES0_CON_NOT_COPYRIGHT)) 2209 val |= AC_DIG1_COPYRIGHT; 2210 if (sbits & (IEC958_AES1_CON_ORIGINAL << 8)) 2211 val |= AC_DIG1_LEVEL; 2212 val |= sbits & (IEC958_AES1_CON_CATEGORY << 8); 2213 } 2214 return val; 2215 } 2216 2217 /* convert to SPDIF status bits from HDA SPDIF bits 2218 */ 2219 static unsigned int convert_to_spdif_status(unsigned short val) 2220 { 2221 unsigned int sbits = 0; 2222 2223 if (val & AC_DIG1_NONAUDIO) 2224 sbits |= IEC958_AES0_NONAUDIO; 2225 if (val & AC_DIG1_PROFESSIONAL) 2226 sbits |= IEC958_AES0_PROFESSIONAL; 2227 if (sbits & IEC958_AES0_PROFESSIONAL) { 2228 if (val & AC_DIG1_EMPHASIS) 2229 sbits |= IEC958_AES0_PRO_EMPHASIS_5015; 2230 } else { 2231 if (val & AC_DIG1_EMPHASIS) 2232 sbits |= IEC958_AES0_CON_EMPHASIS_5015; 2233 if (!(val & AC_DIG1_COPYRIGHT)) 2234 sbits |= IEC958_AES0_CON_NOT_COPYRIGHT; 2235 if (val & AC_DIG1_LEVEL) 2236 sbits |= (IEC958_AES1_CON_ORIGINAL << 8); 2237 sbits |= val & (0x7f << 8); 2238 } 2239 return sbits; 2240 } 2241 2242 /* set digital convert verbs both for the given NID and its slaves */ 2243 static void set_dig_out(struct hda_codec *codec, hda_nid_t nid, 2244 int mask, int val) 2245 { 2246 const hda_nid_t *d; 2247 2248 snd_hdac_regmap_update(&codec->core, nid, AC_VERB_SET_DIGI_CONVERT_1, 2249 mask, val); 2250 d = codec->slave_dig_outs; 2251 if (!d) 2252 return; 2253 for (; *d; d++) 2254 snd_hdac_regmap_update(&codec->core, *d, 2255 AC_VERB_SET_DIGI_CONVERT_1, mask, val); 2256 } 2257 2258 static inline void set_dig_out_convert(struct hda_codec *codec, hda_nid_t nid, 2259 int dig1, int dig2) 2260 { 2261 unsigned int mask = 0; 2262 unsigned int val = 0; 2263 2264 if (dig1 != -1) { 2265 mask |= 0xff; 2266 val = dig1; 2267 } 2268 if (dig2 != -1) { 2269 mask |= 0xff00; 2270 val |= dig2 << 8; 2271 } 2272 set_dig_out(codec, nid, mask, val); 2273 } 2274 2275 static int snd_hda_spdif_default_put(struct snd_kcontrol *kcontrol, 2276 struct snd_ctl_elem_value *ucontrol) 2277 { 2278 struct hda_codec *codec = snd_kcontrol_chip(kcontrol); 2279 int idx = kcontrol->private_value; 2280 struct hda_spdif_out *spdif; 2281 hda_nid_t nid; 2282 unsigned short val; 2283 int change; 2284 2285 mutex_lock(&codec->spdif_mutex); 2286 spdif = snd_array_elem(&codec->spdif_out, idx); 2287 nid = spdif->nid; 2288 spdif->status = ucontrol->value.iec958.status[0] | 2289 ((unsigned int)ucontrol->value.iec958.status[1] << 8) | 2290 ((unsigned int)ucontrol->value.iec958.status[2] << 16) | 2291 ((unsigned int)ucontrol->value.iec958.status[3] << 24); 2292 val = convert_from_spdif_status(spdif->status); 2293 val |= spdif->ctls & 1; 2294 change = spdif->ctls != val; 2295 spdif->ctls = val; 2296 if (change && nid != (u16)-1) 2297 set_dig_out_convert(codec, nid, val & 0xff, (val >> 8) & 0xff); 2298 mutex_unlock(&codec->spdif_mutex); 2299 return change; 2300 } 2301 2302 #define snd_hda_spdif_out_switch_info snd_ctl_boolean_mono_info 2303 2304 static int snd_hda_spdif_out_switch_get(struct snd_kcontrol *kcontrol, 2305 struct snd_ctl_elem_value *ucontrol) 2306 { 2307 struct hda_codec *codec = snd_kcontrol_chip(kcontrol); 2308 int idx = kcontrol->private_value; 2309 struct hda_spdif_out *spdif; 2310 2311 mutex_lock(&codec->spdif_mutex); 2312 spdif = snd_array_elem(&codec->spdif_out, idx); 2313 ucontrol->value.integer.value[0] = spdif->ctls & AC_DIG1_ENABLE; 2314 mutex_unlock(&codec->spdif_mutex); 2315 return 0; 2316 } 2317 2318 static inline void set_spdif_ctls(struct hda_codec *codec, hda_nid_t nid, 2319 int dig1, int dig2) 2320 { 2321 set_dig_out_convert(codec, nid, dig1, dig2); 2322 /* unmute amp switch (if any) */ 2323 if ((get_wcaps(codec, nid) & AC_WCAP_OUT_AMP) && 2324 (dig1 & AC_DIG1_ENABLE)) 2325 snd_hda_codec_amp_stereo(codec, nid, HDA_OUTPUT, 0, 2326 HDA_AMP_MUTE, 0); 2327 } 2328 2329 static int snd_hda_spdif_out_switch_put(struct snd_kcontrol *kcontrol, 2330 struct snd_ctl_elem_value *ucontrol) 2331 { 2332 struct hda_codec *codec = snd_kcontrol_chip(kcontrol); 2333 int idx = kcontrol->private_value; 2334 struct hda_spdif_out *spdif; 2335 hda_nid_t nid; 2336 unsigned short val; 2337 int change; 2338 2339 mutex_lock(&codec->spdif_mutex); 2340 spdif = snd_array_elem(&codec->spdif_out, idx); 2341 nid = spdif->nid; 2342 val = spdif->ctls & ~AC_DIG1_ENABLE; 2343 if (ucontrol->value.integer.value[0]) 2344 val |= AC_DIG1_ENABLE; 2345 change = spdif->ctls != val; 2346 spdif->ctls = val; 2347 if (change && nid != (u16)-1) 2348 set_spdif_ctls(codec, nid, val & 0xff, -1); 2349 mutex_unlock(&codec->spdif_mutex); 2350 return change; 2351 } 2352 2353 static struct snd_kcontrol_new dig_mixes[] = { 2354 { 2355 .access = SNDRV_CTL_ELEM_ACCESS_READ, 2356 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 2357 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, CON_MASK), 2358 .info = snd_hda_spdif_mask_info, 2359 .get = snd_hda_spdif_cmask_get, 2360 }, 2361 { 2362 .access = SNDRV_CTL_ELEM_ACCESS_READ, 2363 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 2364 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, PRO_MASK), 2365 .info = snd_hda_spdif_mask_info, 2366 .get = snd_hda_spdif_pmask_get, 2367 }, 2368 { 2369 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 2370 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT), 2371 .info = snd_hda_spdif_mask_info, 2372 .get = snd_hda_spdif_default_get, 2373 .put = snd_hda_spdif_default_put, 2374 }, 2375 { 2376 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 2377 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, SWITCH), 2378 .info = snd_hda_spdif_out_switch_info, 2379 .get = snd_hda_spdif_out_switch_get, 2380 .put = snd_hda_spdif_out_switch_put, 2381 }, 2382 { } /* end */ 2383 }; 2384 2385 /** 2386 * snd_hda_create_dig_out_ctls - create Output SPDIF-related controls 2387 * @codec: the HDA codec 2388 * @associated_nid: NID that new ctls associated with 2389 * @cvt_nid: converter NID 2390 * @type: HDA_PCM_TYPE_* 2391 * Creates controls related with the digital output. 2392 * Called from each patch supporting the digital out. 2393 * 2394 * Returns 0 if successful, or a negative error code. 2395 */ 2396 int snd_hda_create_dig_out_ctls(struct hda_codec *codec, 2397 hda_nid_t associated_nid, 2398 hda_nid_t cvt_nid, 2399 int type) 2400 { 2401 int err; 2402 struct snd_kcontrol *kctl; 2403 struct snd_kcontrol_new *dig_mix; 2404 int idx = 0; 2405 int val = 0; 2406 const int spdif_index = 16; 2407 struct hda_spdif_out *spdif; 2408 struct hda_bus *bus = codec->bus; 2409 2410 if (bus->primary_dig_out_type == HDA_PCM_TYPE_HDMI && 2411 type == HDA_PCM_TYPE_SPDIF) { 2412 idx = spdif_index; 2413 } else if (bus->primary_dig_out_type == HDA_PCM_TYPE_SPDIF && 2414 type == HDA_PCM_TYPE_HDMI) { 2415 /* suppose a single SPDIF device */ 2416 for (dig_mix = dig_mixes; dig_mix->name; dig_mix++) { 2417 kctl = find_mixer_ctl(codec, dig_mix->name, 0, 0); 2418 if (!kctl) 2419 break; 2420 kctl->id.index = spdif_index; 2421 } 2422 bus->primary_dig_out_type = HDA_PCM_TYPE_HDMI; 2423 } 2424 if (!bus->primary_dig_out_type) 2425 bus->primary_dig_out_type = type; 2426 2427 idx = find_empty_mixer_ctl_idx(codec, "IEC958 Playback Switch", idx); 2428 if (idx < 0) { 2429 codec_err(codec, "too many IEC958 outputs\n"); 2430 return -EBUSY; 2431 } 2432 spdif = snd_array_new(&codec->spdif_out); 2433 if (!spdif) 2434 return -ENOMEM; 2435 for (dig_mix = dig_mixes; dig_mix->name; dig_mix++) { 2436 kctl = snd_ctl_new1(dig_mix, codec); 2437 if (!kctl) 2438 return -ENOMEM; 2439 kctl->id.index = idx; 2440 kctl->private_value = codec->spdif_out.used - 1; 2441 err = snd_hda_ctl_add(codec, associated_nid, kctl); 2442 if (err < 0) 2443 return err; 2444 } 2445 spdif->nid = cvt_nid; 2446 snd_hdac_regmap_read(&codec->core, cvt_nid, 2447 AC_VERB_GET_DIGI_CONVERT_1, &val); 2448 spdif->ctls = val; 2449 spdif->status = convert_to_spdif_status(spdif->ctls); 2450 return 0; 2451 } 2452 EXPORT_SYMBOL_GPL(snd_hda_create_dig_out_ctls); 2453 2454 /** 2455 * snd_hda_spdif_out_of_nid - get the hda_spdif_out entry from the given NID 2456 * @codec: the HDA codec 2457 * @nid: widget NID 2458 * 2459 * call within spdif_mutex lock 2460 */ 2461 struct hda_spdif_out *snd_hda_spdif_out_of_nid(struct hda_codec *codec, 2462 hda_nid_t nid) 2463 { 2464 int i; 2465 for (i = 0; i < codec->spdif_out.used; i++) { 2466 struct hda_spdif_out *spdif = 2467 snd_array_elem(&codec->spdif_out, i); 2468 if (spdif->nid == nid) 2469 return spdif; 2470 } 2471 return NULL; 2472 } 2473 EXPORT_SYMBOL_GPL(snd_hda_spdif_out_of_nid); 2474 2475 /** 2476 * snd_hda_spdif_ctls_unassign - Unassign the given SPDIF ctl 2477 * @codec: the HDA codec 2478 * @idx: the SPDIF ctl index 2479 * 2480 * Unassign the widget from the given SPDIF control. 2481 */ 2482 void snd_hda_spdif_ctls_unassign(struct hda_codec *codec, int idx) 2483 { 2484 struct hda_spdif_out *spdif; 2485 2486 mutex_lock(&codec->spdif_mutex); 2487 spdif = snd_array_elem(&codec->spdif_out, idx); 2488 spdif->nid = (u16)-1; 2489 mutex_unlock(&codec->spdif_mutex); 2490 } 2491 EXPORT_SYMBOL_GPL(snd_hda_spdif_ctls_unassign); 2492 2493 /** 2494 * snd_hda_spdif_ctls_assign - Assign the SPDIF controls to the given NID 2495 * @codec: the HDA codec 2496 * @idx: the SPDIF ctl idx 2497 * @nid: widget NID 2498 * 2499 * Assign the widget to the SPDIF control with the given index. 2500 */ 2501 void snd_hda_spdif_ctls_assign(struct hda_codec *codec, int idx, hda_nid_t nid) 2502 { 2503 struct hda_spdif_out *spdif; 2504 unsigned short val; 2505 2506 mutex_lock(&codec->spdif_mutex); 2507 spdif = snd_array_elem(&codec->spdif_out, idx); 2508 if (spdif->nid != nid) { 2509 spdif->nid = nid; 2510 val = spdif->ctls; 2511 set_spdif_ctls(codec, nid, val & 0xff, (val >> 8) & 0xff); 2512 } 2513 mutex_unlock(&codec->spdif_mutex); 2514 } 2515 EXPORT_SYMBOL_GPL(snd_hda_spdif_ctls_assign); 2516 2517 /* 2518 * SPDIF sharing with analog output 2519 */ 2520 static int spdif_share_sw_get(struct snd_kcontrol *kcontrol, 2521 struct snd_ctl_elem_value *ucontrol) 2522 { 2523 struct hda_multi_out *mout = snd_kcontrol_chip(kcontrol); 2524 ucontrol->value.integer.value[0] = mout->share_spdif; 2525 return 0; 2526 } 2527 2528 static int spdif_share_sw_put(struct snd_kcontrol *kcontrol, 2529 struct snd_ctl_elem_value *ucontrol) 2530 { 2531 struct hda_multi_out *mout = snd_kcontrol_chip(kcontrol); 2532 mout->share_spdif = !!ucontrol->value.integer.value[0]; 2533 return 0; 2534 } 2535 2536 static const struct snd_kcontrol_new spdif_share_sw = { 2537 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 2538 .name = "IEC958 Default PCM Playback Switch", 2539 .info = snd_ctl_boolean_mono_info, 2540 .get = spdif_share_sw_get, 2541 .put = spdif_share_sw_put, 2542 }; 2543 2544 /** 2545 * snd_hda_create_spdif_share_sw - create Default PCM switch 2546 * @codec: the HDA codec 2547 * @mout: multi-out instance 2548 */ 2549 int snd_hda_create_spdif_share_sw(struct hda_codec *codec, 2550 struct hda_multi_out *mout) 2551 { 2552 struct snd_kcontrol *kctl; 2553 2554 if (!mout->dig_out_nid) 2555 return 0; 2556 2557 kctl = snd_ctl_new1(&spdif_share_sw, mout); 2558 if (!kctl) 2559 return -ENOMEM; 2560 /* ATTENTION: here mout is passed as private_data, instead of codec */ 2561 return snd_hda_ctl_add(codec, mout->dig_out_nid, kctl); 2562 } 2563 EXPORT_SYMBOL_GPL(snd_hda_create_spdif_share_sw); 2564 2565 /* 2566 * SPDIF input 2567 */ 2568 2569 #define snd_hda_spdif_in_switch_info snd_hda_spdif_out_switch_info 2570 2571 static int snd_hda_spdif_in_switch_get(struct snd_kcontrol *kcontrol, 2572 struct snd_ctl_elem_value *ucontrol) 2573 { 2574 struct hda_codec *codec = snd_kcontrol_chip(kcontrol); 2575 2576 ucontrol->value.integer.value[0] = codec->spdif_in_enable; 2577 return 0; 2578 } 2579 2580 static int snd_hda_spdif_in_switch_put(struct snd_kcontrol *kcontrol, 2581 struct snd_ctl_elem_value *ucontrol) 2582 { 2583 struct hda_codec *codec = snd_kcontrol_chip(kcontrol); 2584 hda_nid_t nid = kcontrol->private_value; 2585 unsigned int val = !!ucontrol->value.integer.value[0]; 2586 int change; 2587 2588 mutex_lock(&codec->spdif_mutex); 2589 change = codec->spdif_in_enable != val; 2590 if (change) { 2591 codec->spdif_in_enable = val; 2592 snd_hdac_regmap_write(&codec->core, nid, 2593 AC_VERB_SET_DIGI_CONVERT_1, val); 2594 } 2595 mutex_unlock(&codec->spdif_mutex); 2596 return change; 2597 } 2598 2599 static int snd_hda_spdif_in_status_get(struct snd_kcontrol *kcontrol, 2600 struct snd_ctl_elem_value *ucontrol) 2601 { 2602 struct hda_codec *codec = snd_kcontrol_chip(kcontrol); 2603 hda_nid_t nid = kcontrol->private_value; 2604 unsigned int val; 2605 unsigned int sbits; 2606 2607 snd_hdac_regmap_read(&codec->core, nid, 2608 AC_VERB_GET_DIGI_CONVERT_1, &val); 2609 sbits = convert_to_spdif_status(val); 2610 ucontrol->value.iec958.status[0] = sbits; 2611 ucontrol->value.iec958.status[1] = sbits >> 8; 2612 ucontrol->value.iec958.status[2] = sbits >> 16; 2613 ucontrol->value.iec958.status[3] = sbits >> 24; 2614 return 0; 2615 } 2616 2617 static struct snd_kcontrol_new dig_in_ctls[] = { 2618 { 2619 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 2620 .name = SNDRV_CTL_NAME_IEC958("", CAPTURE, SWITCH), 2621 .info = snd_hda_spdif_in_switch_info, 2622 .get = snd_hda_spdif_in_switch_get, 2623 .put = snd_hda_spdif_in_switch_put, 2624 }, 2625 { 2626 .access = SNDRV_CTL_ELEM_ACCESS_READ, 2627 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 2628 .name = SNDRV_CTL_NAME_IEC958("", CAPTURE, DEFAULT), 2629 .info = snd_hda_spdif_mask_info, 2630 .get = snd_hda_spdif_in_status_get, 2631 }, 2632 { } /* end */ 2633 }; 2634 2635 /** 2636 * snd_hda_create_spdif_in_ctls - create Input SPDIF-related controls 2637 * @codec: the HDA codec 2638 * @nid: audio in widget NID 2639 * 2640 * Creates controls related with the SPDIF input. 2641 * Called from each patch supporting the SPDIF in. 2642 * 2643 * Returns 0 if successful, or a negative error code. 2644 */ 2645 int snd_hda_create_spdif_in_ctls(struct hda_codec *codec, hda_nid_t nid) 2646 { 2647 int err; 2648 struct snd_kcontrol *kctl; 2649 struct snd_kcontrol_new *dig_mix; 2650 int idx; 2651 2652 idx = find_empty_mixer_ctl_idx(codec, "IEC958 Capture Switch", 0); 2653 if (idx < 0) { 2654 codec_err(codec, "too many IEC958 inputs\n"); 2655 return -EBUSY; 2656 } 2657 for (dig_mix = dig_in_ctls; dig_mix->name; dig_mix++) { 2658 kctl = snd_ctl_new1(dig_mix, codec); 2659 if (!kctl) 2660 return -ENOMEM; 2661 kctl->private_value = nid; 2662 err = snd_hda_ctl_add(codec, nid, kctl); 2663 if (err < 0) 2664 return err; 2665 } 2666 codec->spdif_in_enable = 2667 snd_hda_codec_read(codec, nid, 0, 2668 AC_VERB_GET_DIGI_CONVERT_1, 0) & 2669 AC_DIG1_ENABLE; 2670 return 0; 2671 } 2672 EXPORT_SYMBOL_GPL(snd_hda_create_spdif_in_ctls); 2673 2674 /** 2675 * snd_hda_codec_set_power_to_all - Set the power state to all widgets 2676 * @codec: the HDA codec 2677 * @fg: function group (not used now) 2678 * @power_state: the power state to set (AC_PWRST_*) 2679 * 2680 * Set the given power state to all widgets that have the power control. 2681 * If the codec has power_filter set, it evaluates the power state and 2682 * filter out if it's unchanged as D3. 2683 */ 2684 void snd_hda_codec_set_power_to_all(struct hda_codec *codec, hda_nid_t fg, 2685 unsigned int power_state) 2686 { 2687 hda_nid_t nid; 2688 2689 for_each_hda_codec_node(nid, codec) { 2690 unsigned int wcaps = get_wcaps(codec, nid); 2691 unsigned int state = power_state; 2692 if (!(wcaps & AC_WCAP_POWER)) 2693 continue; 2694 if (codec->power_filter) { 2695 state = codec->power_filter(codec, nid, power_state); 2696 if (state != power_state && power_state == AC_PWRST_D3) 2697 continue; 2698 } 2699 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_POWER_STATE, 2700 state); 2701 } 2702 } 2703 EXPORT_SYMBOL_GPL(snd_hda_codec_set_power_to_all); 2704 2705 /* 2706 * wait until the state is reached, returns the current state 2707 */ 2708 static unsigned int hda_sync_power_state(struct hda_codec *codec, 2709 hda_nid_t fg, 2710 unsigned int power_state) 2711 { 2712 unsigned long end_time = jiffies + msecs_to_jiffies(500); 2713 unsigned int state, actual_state; 2714 2715 for (;;) { 2716 state = snd_hda_codec_read(codec, fg, 0, 2717 AC_VERB_GET_POWER_STATE, 0); 2718 if (state & AC_PWRST_ERROR) 2719 break; 2720 actual_state = (state >> 4) & 0x0f; 2721 if (actual_state == power_state) 2722 break; 2723 if (time_after_eq(jiffies, end_time)) 2724 break; 2725 /* wait until the codec reachs to the target state */ 2726 msleep(1); 2727 } 2728 return state; 2729 } 2730 2731 /** 2732 * snd_hda_codec_eapd_power_filter - A power filter callback for EAPD 2733 * @codec: the HDA codec 2734 * @nid: widget NID 2735 * @power_state: power state to evalue 2736 * 2737 * Don't power down the widget if it controls eapd and EAPD_BTLENABLE is set. 2738 * This can be used a codec power_filter callback. 2739 */ 2740 unsigned int snd_hda_codec_eapd_power_filter(struct hda_codec *codec, 2741 hda_nid_t nid, 2742 unsigned int power_state) 2743 { 2744 if (nid == codec->core.afg || nid == codec->core.mfg) 2745 return power_state; 2746 if (power_state == AC_PWRST_D3 && 2747 get_wcaps_type(get_wcaps(codec, nid)) == AC_WID_PIN && 2748 (snd_hda_query_pin_caps(codec, nid) & AC_PINCAP_EAPD)) { 2749 int eapd = snd_hda_codec_read(codec, nid, 0, 2750 AC_VERB_GET_EAPD_BTLENABLE, 0); 2751 if (eapd & 0x02) 2752 return AC_PWRST_D0; 2753 } 2754 return power_state; 2755 } 2756 EXPORT_SYMBOL_GPL(snd_hda_codec_eapd_power_filter); 2757 2758 /* 2759 * set power state of the codec, and return the power state 2760 */ 2761 static unsigned int hda_set_power_state(struct hda_codec *codec, 2762 unsigned int power_state) 2763 { 2764 hda_nid_t fg = codec->core.afg ? codec->core.afg : codec->core.mfg; 2765 int count; 2766 unsigned int state; 2767 int flags = 0; 2768 2769 /* this delay seems necessary to avoid click noise at power-down */ 2770 if (power_state == AC_PWRST_D3) { 2771 if (codec->depop_delay < 0) 2772 msleep(codec_has_epss(codec) ? 10 : 100); 2773 else if (codec->depop_delay > 0) 2774 msleep(codec->depop_delay); 2775 flags = HDA_RW_NO_RESPONSE_FALLBACK; 2776 } 2777 2778 /* repeat power states setting at most 10 times*/ 2779 for (count = 0; count < 10; count++) { 2780 if (codec->patch_ops.set_power_state) 2781 codec->patch_ops.set_power_state(codec, fg, 2782 power_state); 2783 else { 2784 state = power_state; 2785 if (codec->power_filter) 2786 state = codec->power_filter(codec, fg, state); 2787 if (state == power_state || power_state != AC_PWRST_D3) 2788 snd_hda_codec_read(codec, fg, flags, 2789 AC_VERB_SET_POWER_STATE, 2790 state); 2791 snd_hda_codec_set_power_to_all(codec, fg, power_state); 2792 } 2793 state = hda_sync_power_state(codec, fg, power_state); 2794 if (!(state & AC_PWRST_ERROR)) 2795 break; 2796 } 2797 2798 return state; 2799 } 2800 2801 /* sync power states of all widgets; 2802 * this is called at the end of codec parsing 2803 */ 2804 static void sync_power_up_states(struct hda_codec *codec) 2805 { 2806 hda_nid_t nid; 2807 2808 /* don't care if no filter is used */ 2809 if (!codec->power_filter) 2810 return; 2811 2812 for_each_hda_codec_node(nid, codec) { 2813 unsigned int wcaps = get_wcaps(codec, nid); 2814 unsigned int target; 2815 if (!(wcaps & AC_WCAP_POWER)) 2816 continue; 2817 target = codec->power_filter(codec, nid, AC_PWRST_D0); 2818 if (target == AC_PWRST_D0) 2819 continue; 2820 if (!snd_hda_check_power_state(codec, nid, target)) 2821 snd_hda_codec_write(codec, nid, 0, 2822 AC_VERB_SET_POWER_STATE, target); 2823 } 2824 } 2825 2826 #ifdef CONFIG_SND_HDA_RECONFIG 2827 /* execute additional init verbs */ 2828 static void hda_exec_init_verbs(struct hda_codec *codec) 2829 { 2830 if (codec->init_verbs.list) 2831 snd_hda_sequence_write(codec, codec->init_verbs.list); 2832 } 2833 #else 2834 static inline void hda_exec_init_verbs(struct hda_codec *codec) {} 2835 #endif 2836 2837 #ifdef CONFIG_PM 2838 /* update the power on/off account with the current jiffies */ 2839 static void update_power_acct(struct hda_codec *codec, bool on) 2840 { 2841 unsigned long delta = jiffies - codec->power_jiffies; 2842 2843 if (on) 2844 codec->power_on_acct += delta; 2845 else 2846 codec->power_off_acct += delta; 2847 codec->power_jiffies += delta; 2848 } 2849 2850 void snd_hda_update_power_acct(struct hda_codec *codec) 2851 { 2852 update_power_acct(codec, hda_codec_is_power_on(codec)); 2853 } 2854 2855 /* 2856 * call suspend and power-down; used both from PM and power-save 2857 * this function returns the power state in the end 2858 */ 2859 static unsigned int hda_call_codec_suspend(struct hda_codec *codec) 2860 { 2861 unsigned int state; 2862 2863 atomic_inc(&codec->core.in_pm); 2864 2865 if (codec->patch_ops.suspend) 2866 codec->patch_ops.suspend(codec); 2867 hda_cleanup_all_streams(codec); 2868 state = hda_set_power_state(codec, AC_PWRST_D3); 2869 update_power_acct(codec, true); 2870 atomic_dec(&codec->core.in_pm); 2871 return state; 2872 } 2873 2874 /* 2875 * kick up codec; used both from PM and power-save 2876 */ 2877 static void hda_call_codec_resume(struct hda_codec *codec) 2878 { 2879 atomic_inc(&codec->core.in_pm); 2880 2881 if (codec->core.regmap) 2882 regcache_mark_dirty(codec->core.regmap); 2883 2884 codec->power_jiffies = jiffies; 2885 2886 hda_set_power_state(codec, AC_PWRST_D0); 2887 restore_shutup_pins(codec); 2888 hda_exec_init_verbs(codec); 2889 snd_hda_jack_set_dirty_all(codec); 2890 if (codec->patch_ops.resume) 2891 codec->patch_ops.resume(codec); 2892 else { 2893 if (codec->patch_ops.init) 2894 codec->patch_ops.init(codec); 2895 if (codec->core.regmap) 2896 regcache_sync(codec->core.regmap); 2897 } 2898 2899 if (codec->jackpoll_interval) 2900 hda_jackpoll_work(&codec->jackpoll_work.work); 2901 else 2902 snd_hda_jack_report_sync(codec); 2903 atomic_dec(&codec->core.in_pm); 2904 } 2905 2906 static int hda_codec_runtime_suspend(struct device *dev) 2907 { 2908 struct hda_codec *codec = dev_to_hda_codec(dev); 2909 struct hda_pcm *pcm; 2910 unsigned int state; 2911 2912 cancel_delayed_work_sync(&codec->jackpoll_work); 2913 list_for_each_entry(pcm, &codec->pcm_list_head, list) 2914 snd_pcm_suspend_all(pcm->pcm); 2915 state = hda_call_codec_suspend(codec); 2916 if (codec_has_clkstop(codec) && codec_has_epss(codec) && 2917 (state & AC_PWRST_CLK_STOP_OK)) 2918 snd_hdac_codec_link_down(&codec->core); 2919 snd_hdac_link_power(&codec->core, false); 2920 return 0; 2921 } 2922 2923 static int hda_codec_runtime_resume(struct device *dev) 2924 { 2925 struct hda_codec *codec = dev_to_hda_codec(dev); 2926 2927 snd_hdac_link_power(&codec->core, true); 2928 snd_hdac_codec_link_up(&codec->core); 2929 hda_call_codec_resume(codec); 2930 pm_runtime_mark_last_busy(dev); 2931 return 0; 2932 } 2933 #endif /* CONFIG_PM */ 2934 2935 /* referred in hda_bind.c */ 2936 const struct dev_pm_ops hda_codec_driver_pm = { 2937 SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, 2938 pm_runtime_force_resume) 2939 SET_RUNTIME_PM_OPS(hda_codec_runtime_suspend, hda_codec_runtime_resume, 2940 NULL) 2941 }; 2942 2943 /* 2944 * add standard channel maps if not specified 2945 */ 2946 static int add_std_chmaps(struct hda_codec *codec) 2947 { 2948 struct hda_pcm *pcm; 2949 int str, err; 2950 2951 list_for_each_entry(pcm, &codec->pcm_list_head, list) { 2952 for (str = 0; str < 2; str++) { 2953 struct hda_pcm_stream *hinfo = &pcm->stream[str]; 2954 struct snd_pcm_chmap *chmap; 2955 const struct snd_pcm_chmap_elem *elem; 2956 2957 if (!pcm->pcm || pcm->own_chmap || !hinfo->substreams) 2958 continue; 2959 elem = hinfo->chmap ? hinfo->chmap : snd_pcm_std_chmaps; 2960 err = snd_pcm_add_chmap_ctls(pcm->pcm, str, elem, 2961 hinfo->channels_max, 2962 0, &chmap); 2963 if (err < 0) 2964 return err; 2965 chmap->channel_mask = SND_PCM_CHMAP_MASK_2468; 2966 } 2967 } 2968 return 0; 2969 } 2970 2971 /* default channel maps for 2.1 speakers; 2972 * since HD-audio supports only stereo, odd number channels are omitted 2973 */ 2974 const struct snd_pcm_chmap_elem snd_pcm_2_1_chmaps[] = { 2975 { .channels = 2, 2976 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR } }, 2977 { .channels = 4, 2978 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, 2979 SNDRV_CHMAP_LFE, SNDRV_CHMAP_LFE } }, 2980 { } 2981 }; 2982 EXPORT_SYMBOL_GPL(snd_pcm_2_1_chmaps); 2983 2984 int snd_hda_codec_build_controls(struct hda_codec *codec) 2985 { 2986 int err = 0; 2987 hda_exec_init_verbs(codec); 2988 /* continue to initialize... */ 2989 if (codec->patch_ops.init) 2990 err = codec->patch_ops.init(codec); 2991 if (!err && codec->patch_ops.build_controls) 2992 err = codec->patch_ops.build_controls(codec); 2993 if (err < 0) 2994 return err; 2995 2996 /* we create chmaps here instead of build_pcms */ 2997 err = add_std_chmaps(codec); 2998 if (err < 0) 2999 return err; 3000 3001 if (codec->jackpoll_interval) 3002 hda_jackpoll_work(&codec->jackpoll_work.work); 3003 else 3004 snd_hda_jack_report_sync(codec); /* call at the last init point */ 3005 sync_power_up_states(codec); 3006 return 0; 3007 } 3008 3009 /* 3010 * PCM stuff 3011 */ 3012 static int hda_pcm_default_open_close(struct hda_pcm_stream *hinfo, 3013 struct hda_codec *codec, 3014 struct snd_pcm_substream *substream) 3015 { 3016 return 0; 3017 } 3018 3019 static int hda_pcm_default_prepare(struct hda_pcm_stream *hinfo, 3020 struct hda_codec *codec, 3021 unsigned int stream_tag, 3022 unsigned int format, 3023 struct snd_pcm_substream *substream) 3024 { 3025 snd_hda_codec_setup_stream(codec, hinfo->nid, stream_tag, 0, format); 3026 return 0; 3027 } 3028 3029 static int hda_pcm_default_cleanup(struct hda_pcm_stream *hinfo, 3030 struct hda_codec *codec, 3031 struct snd_pcm_substream *substream) 3032 { 3033 snd_hda_codec_cleanup_stream(codec, hinfo->nid); 3034 return 0; 3035 } 3036 3037 static int set_pcm_default_values(struct hda_codec *codec, 3038 struct hda_pcm_stream *info) 3039 { 3040 int err; 3041 3042 /* query support PCM information from the given NID */ 3043 if (info->nid && (!info->rates || !info->formats)) { 3044 err = snd_hda_query_supported_pcm(codec, info->nid, 3045 info->rates ? NULL : &info->rates, 3046 info->formats ? NULL : &info->formats, 3047 info->maxbps ? NULL : &info->maxbps); 3048 if (err < 0) 3049 return err; 3050 } 3051 if (info->ops.open == NULL) 3052 info->ops.open = hda_pcm_default_open_close; 3053 if (info->ops.close == NULL) 3054 info->ops.close = hda_pcm_default_open_close; 3055 if (info->ops.prepare == NULL) { 3056 if (snd_BUG_ON(!info->nid)) 3057 return -EINVAL; 3058 info->ops.prepare = hda_pcm_default_prepare; 3059 } 3060 if (info->ops.cleanup == NULL) { 3061 if (snd_BUG_ON(!info->nid)) 3062 return -EINVAL; 3063 info->ops.cleanup = hda_pcm_default_cleanup; 3064 } 3065 return 0; 3066 } 3067 3068 /* 3069 * codec prepare/cleanup entries 3070 */ 3071 /** 3072 * snd_hda_codec_prepare - Prepare a stream 3073 * @codec: the HDA codec 3074 * @hinfo: PCM information 3075 * @stream: stream tag to assign 3076 * @format: format id to assign 3077 * @substream: PCM substream to assign 3078 * 3079 * Calls the prepare callback set by the codec with the given arguments. 3080 * Clean up the inactive streams when successful. 3081 */ 3082 int snd_hda_codec_prepare(struct hda_codec *codec, 3083 struct hda_pcm_stream *hinfo, 3084 unsigned int stream, 3085 unsigned int format, 3086 struct snd_pcm_substream *substream) 3087 { 3088 int ret; 3089 mutex_lock(&codec->bus->prepare_mutex); 3090 if (hinfo->ops.prepare) 3091 ret = hinfo->ops.prepare(hinfo, codec, stream, format, 3092 substream); 3093 else 3094 ret = -ENODEV; 3095 if (ret >= 0) 3096 purify_inactive_streams(codec); 3097 mutex_unlock(&codec->bus->prepare_mutex); 3098 return ret; 3099 } 3100 EXPORT_SYMBOL_GPL(snd_hda_codec_prepare); 3101 3102 /** 3103 * snd_hda_codec_cleanup - Prepare a stream 3104 * @codec: the HDA codec 3105 * @hinfo: PCM information 3106 * @substream: PCM substream 3107 * 3108 * Calls the cleanup callback set by the codec with the given arguments. 3109 */ 3110 void snd_hda_codec_cleanup(struct hda_codec *codec, 3111 struct hda_pcm_stream *hinfo, 3112 struct snd_pcm_substream *substream) 3113 { 3114 mutex_lock(&codec->bus->prepare_mutex); 3115 if (hinfo->ops.cleanup) 3116 hinfo->ops.cleanup(hinfo, codec, substream); 3117 mutex_unlock(&codec->bus->prepare_mutex); 3118 } 3119 EXPORT_SYMBOL_GPL(snd_hda_codec_cleanup); 3120 3121 /* global */ 3122 const char *snd_hda_pcm_type_name[HDA_PCM_NTYPES] = { 3123 "Audio", "SPDIF", "HDMI", "Modem" 3124 }; 3125 3126 /* 3127 * get the empty PCM device number to assign 3128 */ 3129 static int get_empty_pcm_device(struct hda_bus *bus, unsigned int type) 3130 { 3131 /* audio device indices; not linear to keep compatibility */ 3132 /* assigned to static slots up to dev#10; if more needed, assign 3133 * the later slot dynamically (when CONFIG_SND_DYNAMIC_MINORS=y) 3134 */ 3135 static int audio_idx[HDA_PCM_NTYPES][5] = { 3136 [HDA_PCM_TYPE_AUDIO] = { 0, 2, 4, 5, -1 }, 3137 [HDA_PCM_TYPE_SPDIF] = { 1, -1 }, 3138 [HDA_PCM_TYPE_HDMI] = { 3, 7, 8, 9, -1 }, 3139 [HDA_PCM_TYPE_MODEM] = { 6, -1 }, 3140 }; 3141 int i; 3142 3143 if (type >= HDA_PCM_NTYPES) { 3144 dev_err(bus->card->dev, "Invalid PCM type %d\n", type); 3145 return -EINVAL; 3146 } 3147 3148 for (i = 0; audio_idx[type][i] >= 0; i++) { 3149 #ifndef CONFIG_SND_DYNAMIC_MINORS 3150 if (audio_idx[type][i] >= 8) 3151 break; 3152 #endif 3153 if (!test_and_set_bit(audio_idx[type][i], bus->pcm_dev_bits)) 3154 return audio_idx[type][i]; 3155 } 3156 3157 #ifdef CONFIG_SND_DYNAMIC_MINORS 3158 /* non-fixed slots starting from 10 */ 3159 for (i = 10; i < 32; i++) { 3160 if (!test_and_set_bit(i, bus->pcm_dev_bits)) 3161 return i; 3162 } 3163 #endif 3164 3165 dev_warn(bus->card->dev, "Too many %s devices\n", 3166 snd_hda_pcm_type_name[type]); 3167 #ifndef CONFIG_SND_DYNAMIC_MINORS 3168 dev_warn(bus->card->dev, 3169 "Consider building the kernel with CONFIG_SND_DYNAMIC_MINORS=y\n"); 3170 #endif 3171 return -EAGAIN; 3172 } 3173 3174 /* call build_pcms ops of the given codec and set up the default parameters */ 3175 int snd_hda_codec_parse_pcms(struct hda_codec *codec) 3176 { 3177 struct hda_pcm *cpcm; 3178 int err; 3179 3180 if (!list_empty(&codec->pcm_list_head)) 3181 return 0; /* already parsed */ 3182 3183 if (!codec->patch_ops.build_pcms) 3184 return 0; 3185 3186 err = codec->patch_ops.build_pcms(codec); 3187 if (err < 0) { 3188 codec_err(codec, "cannot build PCMs for #%d (error %d)\n", 3189 codec->core.addr, err); 3190 return err; 3191 } 3192 3193 list_for_each_entry(cpcm, &codec->pcm_list_head, list) { 3194 int stream; 3195 3196 for (stream = 0; stream < 2; stream++) { 3197 struct hda_pcm_stream *info = &cpcm->stream[stream]; 3198 3199 if (!info->substreams) 3200 continue; 3201 err = set_pcm_default_values(codec, info); 3202 if (err < 0) { 3203 codec_warn(codec, 3204 "fail to setup default for PCM %s\n", 3205 cpcm->name); 3206 return err; 3207 } 3208 } 3209 } 3210 3211 return 0; 3212 } 3213 3214 /* assign all PCMs of the given codec */ 3215 int snd_hda_codec_build_pcms(struct hda_codec *codec) 3216 { 3217 struct hda_bus *bus = codec->bus; 3218 struct hda_pcm *cpcm; 3219 int dev, err; 3220 3221 err = snd_hda_codec_parse_pcms(codec); 3222 if (err < 0) 3223 return err; 3224 3225 /* attach a new PCM streams */ 3226 list_for_each_entry(cpcm, &codec->pcm_list_head, list) { 3227 if (cpcm->pcm) 3228 continue; /* already attached */ 3229 if (!cpcm->stream[0].substreams && !cpcm->stream[1].substreams) 3230 continue; /* no substreams assigned */ 3231 3232 dev = get_empty_pcm_device(bus, cpcm->pcm_type); 3233 if (dev < 0) { 3234 cpcm->device = SNDRV_PCM_INVALID_DEVICE; 3235 continue; /* no fatal error */ 3236 } 3237 cpcm->device = dev; 3238 err = snd_hda_attach_pcm_stream(bus, codec, cpcm); 3239 if (err < 0) { 3240 codec_err(codec, 3241 "cannot attach PCM stream %d for codec #%d\n", 3242 dev, codec->core.addr); 3243 continue; /* no fatal error */ 3244 } 3245 } 3246 3247 return 0; 3248 } 3249 3250 /** 3251 * snd_hda_add_new_ctls - create controls from the array 3252 * @codec: the HDA codec 3253 * @knew: the array of struct snd_kcontrol_new 3254 * 3255 * This helper function creates and add new controls in the given array. 3256 * The array must be terminated with an empty entry as terminator. 3257 * 3258 * Returns 0 if successful, or a negative error code. 3259 */ 3260 int snd_hda_add_new_ctls(struct hda_codec *codec, 3261 const struct snd_kcontrol_new *knew) 3262 { 3263 int err; 3264 3265 for (; knew->name; knew++) { 3266 struct snd_kcontrol *kctl; 3267 int addr = 0, idx = 0; 3268 if (knew->iface == -1) /* skip this codec private value */ 3269 continue; 3270 for (;;) { 3271 kctl = snd_ctl_new1(knew, codec); 3272 if (!kctl) 3273 return -ENOMEM; 3274 if (addr > 0) 3275 kctl->id.device = addr; 3276 if (idx > 0) 3277 kctl->id.index = idx; 3278 err = snd_hda_ctl_add(codec, 0, kctl); 3279 if (!err) 3280 break; 3281 /* try first with another device index corresponding to 3282 * the codec addr; if it still fails (or it's the 3283 * primary codec), then try another control index 3284 */ 3285 if (!addr && codec->core.addr) 3286 addr = codec->core.addr; 3287 else if (!idx && !knew->index) { 3288 idx = find_empty_mixer_ctl_idx(codec, 3289 knew->name, 0); 3290 if (idx <= 0) 3291 return err; 3292 } else 3293 return err; 3294 } 3295 } 3296 return 0; 3297 } 3298 EXPORT_SYMBOL_GPL(snd_hda_add_new_ctls); 3299 3300 #ifdef CONFIG_PM 3301 static void codec_set_power_save(struct hda_codec *codec, int delay) 3302 { 3303 struct device *dev = hda_codec_dev(codec); 3304 3305 if (delay == 0 && codec->auto_runtime_pm) 3306 delay = 3000; 3307 3308 if (delay > 0) { 3309 pm_runtime_set_autosuspend_delay(dev, delay); 3310 pm_runtime_use_autosuspend(dev); 3311 pm_runtime_allow(dev); 3312 if (!pm_runtime_suspended(dev)) 3313 pm_runtime_mark_last_busy(dev); 3314 } else { 3315 pm_runtime_dont_use_autosuspend(dev); 3316 pm_runtime_forbid(dev); 3317 } 3318 } 3319 3320 /** 3321 * snd_hda_set_power_save - reprogram autosuspend for the given delay 3322 * @bus: HD-audio bus 3323 * @delay: autosuspend delay in msec, 0 = off 3324 * 3325 * Synchronize the runtime PM autosuspend state from the power_save option. 3326 */ 3327 void snd_hda_set_power_save(struct hda_bus *bus, int delay) 3328 { 3329 struct hda_codec *c; 3330 3331 list_for_each_codec(c, bus) 3332 codec_set_power_save(c, delay); 3333 } 3334 EXPORT_SYMBOL_GPL(snd_hda_set_power_save); 3335 3336 /** 3337 * snd_hda_check_amp_list_power - Check the amp list and update the power 3338 * @codec: HD-audio codec 3339 * @check: the object containing an AMP list and the status 3340 * @nid: NID to check / update 3341 * 3342 * Check whether the given NID is in the amp list. If it's in the list, 3343 * check the current AMP status, and update the the power-status according 3344 * to the mute status. 3345 * 3346 * This function is supposed to be set or called from the check_power_status 3347 * patch ops. 3348 */ 3349 int snd_hda_check_amp_list_power(struct hda_codec *codec, 3350 struct hda_loopback_check *check, 3351 hda_nid_t nid) 3352 { 3353 const struct hda_amp_list *p; 3354 int ch, v; 3355 3356 if (!check->amplist) 3357 return 0; 3358 for (p = check->amplist; p->nid; p++) { 3359 if (p->nid == nid) 3360 break; 3361 } 3362 if (!p->nid) 3363 return 0; /* nothing changed */ 3364 3365 for (p = check->amplist; p->nid; p++) { 3366 for (ch = 0; ch < 2; ch++) { 3367 v = snd_hda_codec_amp_read(codec, p->nid, ch, p->dir, 3368 p->idx); 3369 if (!(v & HDA_AMP_MUTE) && v > 0) { 3370 if (!check->power_on) { 3371 check->power_on = 1; 3372 snd_hda_power_up_pm(codec); 3373 } 3374 return 1; 3375 } 3376 } 3377 } 3378 if (check->power_on) { 3379 check->power_on = 0; 3380 snd_hda_power_down_pm(codec); 3381 } 3382 return 0; 3383 } 3384 EXPORT_SYMBOL_GPL(snd_hda_check_amp_list_power); 3385 #endif 3386 3387 /* 3388 * input MUX helper 3389 */ 3390 3391 /** 3392 * snd_hda_input_mux_info_info - Info callback helper for the input-mux enum 3393 * @imux: imux helper object 3394 * @uinfo: pointer to get/store the data 3395 */ 3396 int snd_hda_input_mux_info(const struct hda_input_mux *imux, 3397 struct snd_ctl_elem_info *uinfo) 3398 { 3399 unsigned int index; 3400 3401 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; 3402 uinfo->count = 1; 3403 uinfo->value.enumerated.items = imux->num_items; 3404 if (!imux->num_items) 3405 return 0; 3406 index = uinfo->value.enumerated.item; 3407 if (index >= imux->num_items) 3408 index = imux->num_items - 1; 3409 strcpy(uinfo->value.enumerated.name, imux->items[index].label); 3410 return 0; 3411 } 3412 EXPORT_SYMBOL_GPL(snd_hda_input_mux_info); 3413 3414 /** 3415 * snd_hda_input_mux_info_put - Put callback helper for the input-mux enum 3416 * @codec: the HDA codec 3417 * @imux: imux helper object 3418 * @ucontrol: pointer to get/store the data 3419 * @nid: input mux NID 3420 * @cur_val: pointer to get/store the current imux value 3421 */ 3422 int snd_hda_input_mux_put(struct hda_codec *codec, 3423 const struct hda_input_mux *imux, 3424 struct snd_ctl_elem_value *ucontrol, 3425 hda_nid_t nid, 3426 unsigned int *cur_val) 3427 { 3428 unsigned int idx; 3429 3430 if (!imux->num_items) 3431 return 0; 3432 idx = ucontrol->value.enumerated.item[0]; 3433 if (idx >= imux->num_items) 3434 idx = imux->num_items - 1; 3435 if (*cur_val == idx) 3436 return 0; 3437 snd_hda_codec_write_cache(codec, nid, 0, AC_VERB_SET_CONNECT_SEL, 3438 imux->items[idx].index); 3439 *cur_val = idx; 3440 return 1; 3441 } 3442 EXPORT_SYMBOL_GPL(snd_hda_input_mux_put); 3443 3444 3445 /** 3446 * snd_hda_enum_helper_info - Helper for simple enum ctls 3447 * @kcontrol: ctl element 3448 * @uinfo: pointer to get/store the data 3449 * @num_items: number of enum items 3450 * @texts: enum item string array 3451 * 3452 * process kcontrol info callback of a simple string enum array 3453 * when @num_items is 0 or @texts is NULL, assume a boolean enum array 3454 */ 3455 int snd_hda_enum_helper_info(struct snd_kcontrol *kcontrol, 3456 struct snd_ctl_elem_info *uinfo, 3457 int num_items, const char * const *texts) 3458 { 3459 static const char * const texts_default[] = { 3460 "Disabled", "Enabled" 3461 }; 3462 3463 if (!texts || !num_items) { 3464 num_items = 2; 3465 texts = texts_default; 3466 } 3467 3468 return snd_ctl_enum_info(uinfo, 1, num_items, texts); 3469 } 3470 EXPORT_SYMBOL_GPL(snd_hda_enum_helper_info); 3471 3472 /* 3473 * Multi-channel / digital-out PCM helper functions 3474 */ 3475 3476 /* setup SPDIF output stream */ 3477 static void setup_dig_out_stream(struct hda_codec *codec, hda_nid_t nid, 3478 unsigned int stream_tag, unsigned int format) 3479 { 3480 struct hda_spdif_out *spdif; 3481 unsigned int curr_fmt; 3482 bool reset; 3483 3484 spdif = snd_hda_spdif_out_of_nid(codec, nid); 3485 /* Add sanity check to pass klockwork check. 3486 * This should never happen. 3487 */ 3488 if (WARN_ON(spdif == NULL)) 3489 return; 3490 3491 curr_fmt = snd_hda_codec_read(codec, nid, 0, 3492 AC_VERB_GET_STREAM_FORMAT, 0); 3493 reset = codec->spdif_status_reset && 3494 (spdif->ctls & AC_DIG1_ENABLE) && 3495 curr_fmt != format; 3496 3497 /* turn off SPDIF if needed; otherwise the IEC958 bits won't be 3498 updated */ 3499 if (reset) 3500 set_dig_out_convert(codec, nid, 3501 spdif->ctls & ~AC_DIG1_ENABLE & 0xff, 3502 -1); 3503 snd_hda_codec_setup_stream(codec, nid, stream_tag, 0, format); 3504 if (codec->slave_dig_outs) { 3505 const hda_nid_t *d; 3506 for (d = codec->slave_dig_outs; *d; d++) 3507 snd_hda_codec_setup_stream(codec, *d, stream_tag, 0, 3508 format); 3509 } 3510 /* turn on again (if needed) */ 3511 if (reset) 3512 set_dig_out_convert(codec, nid, 3513 spdif->ctls & 0xff, -1); 3514 } 3515 3516 static void cleanup_dig_out_stream(struct hda_codec *codec, hda_nid_t nid) 3517 { 3518 snd_hda_codec_cleanup_stream(codec, nid); 3519 if (codec->slave_dig_outs) { 3520 const hda_nid_t *d; 3521 for (d = codec->slave_dig_outs; *d; d++) 3522 snd_hda_codec_cleanup_stream(codec, *d); 3523 } 3524 } 3525 3526 /** 3527 * snd_hda_multi_out_dig_open - open the digital out in the exclusive mode 3528 * @codec: the HDA codec 3529 * @mout: hda_multi_out object 3530 */ 3531 int snd_hda_multi_out_dig_open(struct hda_codec *codec, 3532 struct hda_multi_out *mout) 3533 { 3534 mutex_lock(&codec->spdif_mutex); 3535 if (mout->dig_out_used == HDA_DIG_ANALOG_DUP) 3536 /* already opened as analog dup; reset it once */ 3537 cleanup_dig_out_stream(codec, mout->dig_out_nid); 3538 mout->dig_out_used = HDA_DIG_EXCLUSIVE; 3539 mutex_unlock(&codec->spdif_mutex); 3540 return 0; 3541 } 3542 EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_open); 3543 3544 /** 3545 * snd_hda_multi_out_dig_prepare - prepare the digital out stream 3546 * @codec: the HDA codec 3547 * @mout: hda_multi_out object 3548 * @stream_tag: stream tag to assign 3549 * @format: format id to assign 3550 * @substream: PCM substream to assign 3551 */ 3552 int snd_hda_multi_out_dig_prepare(struct hda_codec *codec, 3553 struct hda_multi_out *mout, 3554 unsigned int stream_tag, 3555 unsigned int format, 3556 struct snd_pcm_substream *substream) 3557 { 3558 mutex_lock(&codec->spdif_mutex); 3559 setup_dig_out_stream(codec, mout->dig_out_nid, stream_tag, format); 3560 mutex_unlock(&codec->spdif_mutex); 3561 return 0; 3562 } 3563 EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_prepare); 3564 3565 /** 3566 * snd_hda_multi_out_dig_cleanup - clean-up the digital out stream 3567 * @codec: the HDA codec 3568 * @mout: hda_multi_out object 3569 */ 3570 int snd_hda_multi_out_dig_cleanup(struct hda_codec *codec, 3571 struct hda_multi_out *mout) 3572 { 3573 mutex_lock(&codec->spdif_mutex); 3574 cleanup_dig_out_stream(codec, mout->dig_out_nid); 3575 mutex_unlock(&codec->spdif_mutex); 3576 return 0; 3577 } 3578 EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_cleanup); 3579 3580 /** 3581 * snd_hda_multi_out_dig_close - release the digital out stream 3582 * @codec: the HDA codec 3583 * @mout: hda_multi_out object 3584 */ 3585 int snd_hda_multi_out_dig_close(struct hda_codec *codec, 3586 struct hda_multi_out *mout) 3587 { 3588 mutex_lock(&codec->spdif_mutex); 3589 mout->dig_out_used = 0; 3590 mutex_unlock(&codec->spdif_mutex); 3591 return 0; 3592 } 3593 EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_close); 3594 3595 /** 3596 * snd_hda_multi_out_analog_open - open analog outputs 3597 * @codec: the HDA codec 3598 * @mout: hda_multi_out object 3599 * @substream: PCM substream to assign 3600 * @hinfo: PCM information to assign 3601 * 3602 * Open analog outputs and set up the hw-constraints. 3603 * If the digital outputs can be opened as slave, open the digital 3604 * outputs, too. 3605 */ 3606 int snd_hda_multi_out_analog_open(struct hda_codec *codec, 3607 struct hda_multi_out *mout, 3608 struct snd_pcm_substream *substream, 3609 struct hda_pcm_stream *hinfo) 3610 { 3611 struct snd_pcm_runtime *runtime = substream->runtime; 3612 runtime->hw.channels_max = mout->max_channels; 3613 if (mout->dig_out_nid) { 3614 if (!mout->analog_rates) { 3615 mout->analog_rates = hinfo->rates; 3616 mout->analog_formats = hinfo->formats; 3617 mout->analog_maxbps = hinfo->maxbps; 3618 } else { 3619 runtime->hw.rates = mout->analog_rates; 3620 runtime->hw.formats = mout->analog_formats; 3621 hinfo->maxbps = mout->analog_maxbps; 3622 } 3623 if (!mout->spdif_rates) { 3624 snd_hda_query_supported_pcm(codec, mout->dig_out_nid, 3625 &mout->spdif_rates, 3626 &mout->spdif_formats, 3627 &mout->spdif_maxbps); 3628 } 3629 mutex_lock(&codec->spdif_mutex); 3630 if (mout->share_spdif) { 3631 if ((runtime->hw.rates & mout->spdif_rates) && 3632 (runtime->hw.formats & mout->spdif_formats)) { 3633 runtime->hw.rates &= mout->spdif_rates; 3634 runtime->hw.formats &= mout->spdif_formats; 3635 if (mout->spdif_maxbps < hinfo->maxbps) 3636 hinfo->maxbps = mout->spdif_maxbps; 3637 } else { 3638 mout->share_spdif = 0; 3639 /* FIXME: need notify? */ 3640 } 3641 } 3642 mutex_unlock(&codec->spdif_mutex); 3643 } 3644 return snd_pcm_hw_constraint_step(substream->runtime, 0, 3645 SNDRV_PCM_HW_PARAM_CHANNELS, 2); 3646 } 3647 EXPORT_SYMBOL_GPL(snd_hda_multi_out_analog_open); 3648 3649 /** 3650 * snd_hda_multi_out_analog_prepare - Preapre the analog outputs. 3651 * @codec: the HDA codec 3652 * @mout: hda_multi_out object 3653 * @stream_tag: stream tag to assign 3654 * @format: format id to assign 3655 * @substream: PCM substream to assign 3656 * 3657 * Set up the i/o for analog out. 3658 * When the digital out is available, copy the front out to digital out, too. 3659 */ 3660 int snd_hda_multi_out_analog_prepare(struct hda_codec *codec, 3661 struct hda_multi_out *mout, 3662 unsigned int stream_tag, 3663 unsigned int format, 3664 struct snd_pcm_substream *substream) 3665 { 3666 const hda_nid_t *nids = mout->dac_nids; 3667 int chs = substream->runtime->channels; 3668 struct hda_spdif_out *spdif; 3669 int i; 3670 3671 mutex_lock(&codec->spdif_mutex); 3672 spdif = snd_hda_spdif_out_of_nid(codec, mout->dig_out_nid); 3673 if (mout->dig_out_nid && mout->share_spdif && 3674 mout->dig_out_used != HDA_DIG_EXCLUSIVE) { 3675 if (chs == 2 && spdif != NULL && 3676 snd_hda_is_supported_format(codec, mout->dig_out_nid, 3677 format) && 3678 !(spdif->status & IEC958_AES0_NONAUDIO)) { 3679 mout->dig_out_used = HDA_DIG_ANALOG_DUP; 3680 setup_dig_out_stream(codec, mout->dig_out_nid, 3681 stream_tag, format); 3682 } else { 3683 mout->dig_out_used = 0; 3684 cleanup_dig_out_stream(codec, mout->dig_out_nid); 3685 } 3686 } 3687 mutex_unlock(&codec->spdif_mutex); 3688 3689 /* front */ 3690 snd_hda_codec_setup_stream(codec, nids[HDA_FRONT], stream_tag, 3691 0, format); 3692 if (!mout->no_share_stream && 3693 mout->hp_nid && mout->hp_nid != nids[HDA_FRONT]) 3694 /* headphone out will just decode front left/right (stereo) */ 3695 snd_hda_codec_setup_stream(codec, mout->hp_nid, stream_tag, 3696 0, format); 3697 /* extra outputs copied from front */ 3698 for (i = 0; i < ARRAY_SIZE(mout->hp_out_nid); i++) 3699 if (!mout->no_share_stream && mout->hp_out_nid[i]) 3700 snd_hda_codec_setup_stream(codec, 3701 mout->hp_out_nid[i], 3702 stream_tag, 0, format); 3703 3704 /* surrounds */ 3705 for (i = 1; i < mout->num_dacs; i++) { 3706 if (chs >= (i + 1) * 2) /* independent out */ 3707 snd_hda_codec_setup_stream(codec, nids[i], stream_tag, 3708 i * 2, format); 3709 else if (!mout->no_share_stream) /* copy front */ 3710 snd_hda_codec_setup_stream(codec, nids[i], stream_tag, 3711 0, format); 3712 } 3713 3714 /* extra surrounds */ 3715 for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++) { 3716 int ch = 0; 3717 if (!mout->extra_out_nid[i]) 3718 break; 3719 if (chs >= (i + 1) * 2) 3720 ch = i * 2; 3721 else if (!mout->no_share_stream) 3722 break; 3723 snd_hda_codec_setup_stream(codec, mout->extra_out_nid[i], 3724 stream_tag, ch, format); 3725 } 3726 3727 return 0; 3728 } 3729 EXPORT_SYMBOL_GPL(snd_hda_multi_out_analog_prepare); 3730 3731 /** 3732 * snd_hda_multi_out_analog_cleanup - clean up the setting for analog out 3733 * @codec: the HDA codec 3734 * @mout: hda_multi_out object 3735 */ 3736 int snd_hda_multi_out_analog_cleanup(struct hda_codec *codec, 3737 struct hda_multi_out *mout) 3738 { 3739 const hda_nid_t *nids = mout->dac_nids; 3740 int i; 3741 3742 for (i = 0; i < mout->num_dacs; i++) 3743 snd_hda_codec_cleanup_stream(codec, nids[i]); 3744 if (mout->hp_nid) 3745 snd_hda_codec_cleanup_stream(codec, mout->hp_nid); 3746 for (i = 0; i < ARRAY_SIZE(mout->hp_out_nid); i++) 3747 if (mout->hp_out_nid[i]) 3748 snd_hda_codec_cleanup_stream(codec, 3749 mout->hp_out_nid[i]); 3750 for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++) 3751 if (mout->extra_out_nid[i]) 3752 snd_hda_codec_cleanup_stream(codec, 3753 mout->extra_out_nid[i]); 3754 mutex_lock(&codec->spdif_mutex); 3755 if (mout->dig_out_nid && mout->dig_out_used == HDA_DIG_ANALOG_DUP) { 3756 cleanup_dig_out_stream(codec, mout->dig_out_nid); 3757 mout->dig_out_used = 0; 3758 } 3759 mutex_unlock(&codec->spdif_mutex); 3760 return 0; 3761 } 3762 EXPORT_SYMBOL_GPL(snd_hda_multi_out_analog_cleanup); 3763 3764 /** 3765 * snd_hda_get_default_vref - Get the default (mic) VREF pin bits 3766 * @codec: the HDA codec 3767 * @pin: referred pin NID 3768 * 3769 * Guess the suitable VREF pin bits to be set as the pin-control value. 3770 * Note: the function doesn't set the AC_PINCTL_IN_EN bit. 3771 */ 3772 unsigned int snd_hda_get_default_vref(struct hda_codec *codec, hda_nid_t pin) 3773 { 3774 unsigned int pincap; 3775 unsigned int oldval; 3776 oldval = snd_hda_codec_read(codec, pin, 0, 3777 AC_VERB_GET_PIN_WIDGET_CONTROL, 0); 3778 pincap = snd_hda_query_pin_caps(codec, pin); 3779 pincap = (pincap & AC_PINCAP_VREF) >> AC_PINCAP_VREF_SHIFT; 3780 /* Exception: if the default pin setup is vref50, we give it priority */ 3781 if ((pincap & AC_PINCAP_VREF_80) && oldval != PIN_VREF50) 3782 return AC_PINCTL_VREF_80; 3783 else if (pincap & AC_PINCAP_VREF_50) 3784 return AC_PINCTL_VREF_50; 3785 else if (pincap & AC_PINCAP_VREF_100) 3786 return AC_PINCTL_VREF_100; 3787 else if (pincap & AC_PINCAP_VREF_GRD) 3788 return AC_PINCTL_VREF_GRD; 3789 return AC_PINCTL_VREF_HIZ; 3790 } 3791 EXPORT_SYMBOL_GPL(snd_hda_get_default_vref); 3792 3793 /** 3794 * snd_hda_correct_pin_ctl - correct the pin ctl value for matching with the pin cap 3795 * @codec: the HDA codec 3796 * @pin: referred pin NID 3797 * @val: pin ctl value to audit 3798 */ 3799 unsigned int snd_hda_correct_pin_ctl(struct hda_codec *codec, 3800 hda_nid_t pin, unsigned int val) 3801 { 3802 static unsigned int cap_lists[][2] = { 3803 { AC_PINCTL_VREF_100, AC_PINCAP_VREF_100 }, 3804 { AC_PINCTL_VREF_80, AC_PINCAP_VREF_80 }, 3805 { AC_PINCTL_VREF_50, AC_PINCAP_VREF_50 }, 3806 { AC_PINCTL_VREF_GRD, AC_PINCAP_VREF_GRD }, 3807 }; 3808 unsigned int cap; 3809 3810 if (!val) 3811 return 0; 3812 cap = snd_hda_query_pin_caps(codec, pin); 3813 if (!cap) 3814 return val; /* don't know what to do... */ 3815 3816 if (val & AC_PINCTL_OUT_EN) { 3817 if (!(cap & AC_PINCAP_OUT)) 3818 val &= ~(AC_PINCTL_OUT_EN | AC_PINCTL_HP_EN); 3819 else if ((val & AC_PINCTL_HP_EN) && !(cap & AC_PINCAP_HP_DRV)) 3820 val &= ~AC_PINCTL_HP_EN; 3821 } 3822 3823 if (val & AC_PINCTL_IN_EN) { 3824 if (!(cap & AC_PINCAP_IN)) 3825 val &= ~(AC_PINCTL_IN_EN | AC_PINCTL_VREFEN); 3826 else { 3827 unsigned int vcap, vref; 3828 int i; 3829 vcap = (cap & AC_PINCAP_VREF) >> AC_PINCAP_VREF_SHIFT; 3830 vref = val & AC_PINCTL_VREFEN; 3831 for (i = 0; i < ARRAY_SIZE(cap_lists); i++) { 3832 if (vref == cap_lists[i][0] && 3833 !(vcap & cap_lists[i][1])) { 3834 if (i == ARRAY_SIZE(cap_lists) - 1) 3835 vref = AC_PINCTL_VREF_HIZ; 3836 else 3837 vref = cap_lists[i + 1][0]; 3838 } 3839 } 3840 val &= ~AC_PINCTL_VREFEN; 3841 val |= vref; 3842 } 3843 } 3844 3845 return val; 3846 } 3847 EXPORT_SYMBOL_GPL(snd_hda_correct_pin_ctl); 3848 3849 /** 3850 * _snd_hda_pin_ctl - Helper to set pin ctl value 3851 * @codec: the HDA codec 3852 * @pin: referred pin NID 3853 * @val: pin control value to set 3854 * @cached: access over codec pinctl cache or direct write 3855 * 3856 * This function is a helper to set a pin ctl value more safely. 3857 * It corrects the pin ctl value via snd_hda_correct_pin_ctl(), stores the 3858 * value in pin target array via snd_hda_codec_set_pin_target(), then 3859 * actually writes the value via either snd_hda_codec_update_cache() or 3860 * snd_hda_codec_write() depending on @cached flag. 3861 */ 3862 int _snd_hda_set_pin_ctl(struct hda_codec *codec, hda_nid_t pin, 3863 unsigned int val, bool cached) 3864 { 3865 val = snd_hda_correct_pin_ctl(codec, pin, val); 3866 snd_hda_codec_set_pin_target(codec, pin, val); 3867 if (cached) 3868 return snd_hda_codec_update_cache(codec, pin, 0, 3869 AC_VERB_SET_PIN_WIDGET_CONTROL, val); 3870 else 3871 return snd_hda_codec_write(codec, pin, 0, 3872 AC_VERB_SET_PIN_WIDGET_CONTROL, val); 3873 } 3874 EXPORT_SYMBOL_GPL(_snd_hda_set_pin_ctl); 3875 3876 /** 3877 * snd_hda_add_imux_item - Add an item to input_mux 3878 * @codec: the HDA codec 3879 * @imux: imux helper object 3880 * @label: the name of imux item to assign 3881 * @index: index number of imux item to assign 3882 * @type_idx: pointer to store the resultant label index 3883 * 3884 * When the same label is used already in the existing items, the number 3885 * suffix is appended to the label. This label index number is stored 3886 * to type_idx when non-NULL pointer is given. 3887 */ 3888 int snd_hda_add_imux_item(struct hda_codec *codec, 3889 struct hda_input_mux *imux, const char *label, 3890 int index, int *type_idx) 3891 { 3892 int i, label_idx = 0; 3893 if (imux->num_items >= HDA_MAX_NUM_INPUTS) { 3894 codec_err(codec, "hda_codec: Too many imux items!\n"); 3895 return -EINVAL; 3896 } 3897 for (i = 0; i < imux->num_items; i++) { 3898 if (!strncmp(label, imux->items[i].label, strlen(label))) 3899 label_idx++; 3900 } 3901 if (type_idx) 3902 *type_idx = label_idx; 3903 if (label_idx > 0) 3904 snprintf(imux->items[imux->num_items].label, 3905 sizeof(imux->items[imux->num_items].label), 3906 "%s %d", label, label_idx); 3907 else 3908 strlcpy(imux->items[imux->num_items].label, label, 3909 sizeof(imux->items[imux->num_items].label)); 3910 imux->items[imux->num_items].index = index; 3911 imux->num_items++; 3912 return 0; 3913 } 3914 EXPORT_SYMBOL_GPL(snd_hda_add_imux_item); 3915 3916 /** 3917 * snd_hda_bus_reset_codecs - Reset the bus 3918 * @bus: HD-audio bus 3919 */ 3920 void snd_hda_bus_reset_codecs(struct hda_bus *bus) 3921 { 3922 struct hda_codec *codec; 3923 3924 list_for_each_codec(codec, bus) { 3925 /* FIXME: maybe a better way needed for forced reset */ 3926 cancel_delayed_work_sync(&codec->jackpoll_work); 3927 #ifdef CONFIG_PM 3928 if (hda_codec_is_power_on(codec)) { 3929 hda_call_codec_suspend(codec); 3930 hda_call_codec_resume(codec); 3931 } 3932 #endif 3933 } 3934 } 3935 3936 /** 3937 * snd_print_pcm_bits - Print the supported PCM fmt bits to the string buffer 3938 * @pcm: PCM caps bits 3939 * @buf: the string buffer to write 3940 * @buflen: the max buffer length 3941 * 3942 * used by hda_proc.c and hda_eld.c 3943 */ 3944 void snd_print_pcm_bits(int pcm, char *buf, int buflen) 3945 { 3946 static unsigned int bits[] = { 8, 16, 20, 24, 32 }; 3947 int i, j; 3948 3949 for (i = 0, j = 0; i < ARRAY_SIZE(bits); i++) 3950 if (pcm & (AC_SUPPCM_BITS_8 << i)) 3951 j += snprintf(buf + j, buflen - j, " %d", bits[i]); 3952 3953 buf[j] = '\0'; /* necessary when j == 0 */ 3954 } 3955 EXPORT_SYMBOL_GPL(snd_print_pcm_bits); 3956 3957 MODULE_DESCRIPTION("HDA codec core"); 3958 MODULE_LICENSE("GPL"); 3959