1// SPDX-License-Identifier: GPL-2.0-only 2/* 3 * hdac_hdmi.c - ASoc HDA-HDMI codec driver for Intel platforms 4 * 5 * Copyright (C) 2014-2015 Intel Corp 6 * Author: Samreen Nilofer <samreen.nilofer@intel.com> 7 * Subhransu S. Prusty <subhransu.s.prusty@intel.com> 8 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 9 * 10 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 11 */ 12 13#include <linux/init.h> 14#include <linux/delay.h> 15#include <linux/module.h> 16#include <linux/pm_runtime.h> 17#include <linux/hdmi.h> 18#include <drm/drm_edid.h> 19#include <drm/drm_eld.h> 20#include <sound/pcm_params.h> 21#include <sound/jack.h> 22#include <sound/soc.h> 23#include <sound/hdaudio_ext.h> 24#include <sound/hda_i915.h> 25#include <sound/pcm_drm_eld.h> 26#include <sound/hda_chmap.h> 27#include "../../hda/local.h" 28#include "hdac_hdmi.h" 29 30#define NAME_SIZE 32 31 32#define AMP_OUT_MUTE 0xb080 33#define AMP_OUT_UNMUTE 0xb000 34#define PIN_OUT (AC_PINCTL_OUT_EN) 35 36#define HDA_MAX_CONNECTIONS 32 37 38#define HDA_MAX_CVTS 3 39#define HDA_MAX_PORTS 3 40 41#define ELD_MAX_SIZE 256 42#define ELD_FIXED_BYTES 20 43 44#define ELD_VER_CEA_861D 2 45#define ELD_VER_PARTIAL 31 46#define ELD_MAX_MNL 16 47 48struct hdac_hdmi_cvt_params { 49 unsigned int channels_min; 50 unsigned int channels_max; 51 u32 rates; 52 u64 formats; 53 unsigned int maxbps; 54}; 55 56struct hdac_hdmi_cvt { 57 struct list_head head; 58 hda_nid_t nid; 59 const char *name; 60 struct hdac_hdmi_cvt_params params; 61}; 62 63/* Currently only spk_alloc, more to be added */ 64struct hdac_hdmi_parsed_eld { 65 u8 spk_alloc; 66}; 67 68struct hdac_hdmi_eld { 69 bool monitor_present; 70 bool eld_valid; 71 int eld_size; 72 char eld_buffer[ELD_MAX_SIZE]; 73 struct hdac_hdmi_parsed_eld info; 74}; 75 76struct hdac_hdmi_pin { 77 struct list_head head; 78 hda_nid_t nid; 79 bool mst_capable; 80 struct hdac_hdmi_port *ports; 81 int num_ports; 82 struct hdac_device *hdev; 83}; 84 85struct hdac_hdmi_port { 86 struct list_head head; 87 int id; 88 struct hdac_hdmi_pin *pin; 89 int num_mux_nids; 90 hda_nid_t mux_nids[HDA_MAX_CONNECTIONS]; 91 struct hdac_hdmi_eld eld; 92 const char *jack_pin; 93 bool is_connect; 94 struct snd_soc_dapm_context *dapm; 95 const char *output_pin; 96 struct work_struct dapm_work; 97}; 98 99struct hdac_hdmi_pcm { 100 struct list_head head; 101 int pcm_id; 102 struct list_head port_list; 103 struct hdac_hdmi_cvt *cvt; 104 struct snd_soc_jack *jack; 105 int stream_tag; 106 int channels; 107 int format; 108 bool chmap_set; 109 unsigned char chmap[8]; /* ALSA API channel-map */ 110 struct mutex lock; 111 int jack_event; 112 struct snd_kcontrol *eld_ctl; 113}; 114 115struct hdac_hdmi_dai_port_map { 116 int dai_id; 117 struct hdac_hdmi_port *port; 118 struct hdac_hdmi_cvt *cvt; 119}; 120 121struct hdac_hdmi_drv_data { 122 unsigned int vendor_nid; 123}; 124 125struct hdac_hdmi_priv { 126 struct hdac_device *hdev; 127 struct snd_soc_component *component; 128 struct snd_card *card; 129 struct hdac_hdmi_dai_port_map dai_map[HDA_MAX_CVTS]; 130 struct list_head pin_list; 131 struct list_head cvt_list; 132 struct list_head pcm_list; 133 int num_pin; 134 int num_cvt; 135 int num_ports; 136 struct mutex pin_mutex; 137 struct hdac_chmap chmap; 138 struct hdac_hdmi_drv_data *drv_data; 139 struct snd_soc_dai_driver *dai_drv; 140}; 141 142#define hdev_to_hdmi_priv(_hdev) dev_get_drvdata(&(_hdev)->dev) 143 144static struct hdac_hdmi_pcm * 145hdac_hdmi_get_pcm_from_cvt(struct hdac_hdmi_priv *hdmi, 146 struct hdac_hdmi_cvt *cvt) 147{ 148 struct hdac_hdmi_pcm *pcm; 149 150 list_for_each_entry(pcm, &hdmi->pcm_list, head) { 151 if (pcm->cvt == cvt) 152 return pcm; 153 } 154 155 return NULL; 156} 157 158static void hdac_hdmi_jack_report(struct hdac_hdmi_pcm *pcm, 159 struct hdac_hdmi_port *port, bool is_connect) 160{ 161 struct hdac_device *hdev = port->pin->hdev; 162 163 port->is_connect = is_connect; 164 if (is_connect) { 165 /* 166 * Report Jack connect event when a device is connected 167 * for the first time where same PCM is attached to multiple 168 * ports. 169 */ 170 if (pcm->jack_event == 0) { 171 dev_dbg(&hdev->dev, 172 "jack report for pcm=%d\n", 173 pcm->pcm_id); 174 snd_soc_jack_report(pcm->jack, SND_JACK_AVOUT, 175 SND_JACK_AVOUT); 176 } 177 pcm->jack_event++; 178 } else { 179 /* 180 * Report Jack disconnect event when a device is disconnected 181 * is the only last connected device when same PCM is attached 182 * to multiple ports. 183 */ 184 if (pcm->jack_event == 1) 185 snd_soc_jack_report(pcm->jack, 0, SND_JACK_AVOUT); 186 if (pcm->jack_event > 0) 187 pcm->jack_event--; 188 } 189} 190 191static void hdac_hdmi_port_dapm_update(struct hdac_hdmi_port *port) 192{ 193 if (port->is_connect) 194 snd_soc_dapm_enable_pin(port->dapm, port->jack_pin); 195 else 196 snd_soc_dapm_disable_pin(port->dapm, port->jack_pin); 197 snd_soc_dapm_sync(port->dapm); 198} 199 200static void hdac_hdmi_jack_dapm_work(struct work_struct *work) 201{ 202 struct hdac_hdmi_port *port; 203 204 port = container_of(work, struct hdac_hdmi_port, dapm_work); 205 hdac_hdmi_port_dapm_update(port); 206} 207 208static void hdac_hdmi_jack_report_sync(struct hdac_hdmi_pcm *pcm, 209 struct hdac_hdmi_port *port, bool is_connect) 210{ 211 hdac_hdmi_jack_report(pcm, port, is_connect); 212 hdac_hdmi_port_dapm_update(port); 213} 214 215/* MST supported verbs */ 216/* 217 * Get the no devices that can be connected to a port on the Pin widget. 218 */ 219static int hdac_hdmi_get_port_len(struct hdac_device *hdev, hda_nid_t nid) 220{ 221 unsigned int caps; 222 unsigned int type, param; 223 224 caps = get_wcaps(hdev, nid); 225 type = get_wcaps_type(caps); 226 227 if (!(caps & AC_WCAP_DIGITAL) || (type != AC_WID_PIN)) 228 return 0; 229 230 param = snd_hdac_read_parm_uncached(hdev, nid, AC_PAR_DEVLIST_LEN); 231 if (param == -1) 232 return param; 233 234 return param & AC_DEV_LIST_LEN_MASK; 235} 236 237/* 238 * Get the port entry select on the pin. Return the port entry 239 * id selected on the pin. Return 0 means the first port entry 240 * is selected or MST is not supported. 241 */ 242static int hdac_hdmi_port_select_get(struct hdac_device *hdev, 243 struct hdac_hdmi_port *port) 244{ 245 return snd_hdac_codec_read(hdev, port->pin->nid, 246 0, AC_VERB_GET_DEVICE_SEL, 0); 247} 248 249/* 250 * Sets the selected port entry for the configuring Pin widget verb. 251 * returns error if port set is not equal to port get otherwise success 252 */ 253static int hdac_hdmi_port_select_set(struct hdac_device *hdev, 254 struct hdac_hdmi_port *port) 255{ 256 int num_ports; 257 258 if (!port->pin->mst_capable) 259 return 0; 260 261 /* AC_PAR_DEVLIST_LEN is 0 based. */ 262 num_ports = hdac_hdmi_get_port_len(hdev, port->pin->nid); 263 if (num_ports < 0) 264 return -EIO; 265 /* 266 * Device List Length is a 0 based integer value indicating the 267 * number of sink device that a MST Pin Widget can support. 268 */ 269 if (num_ports + 1 < port->id) 270 return 0; 271 272 snd_hdac_codec_write(hdev, port->pin->nid, 0, 273 AC_VERB_SET_DEVICE_SEL, port->id); 274 275 if (port->id != hdac_hdmi_port_select_get(hdev, port)) 276 return -EIO; 277 278 dev_dbg(&hdev->dev, "Selected the port=%d\n", port->id); 279 280 return 0; 281} 282 283static struct hdac_hdmi_pcm *get_hdmi_pcm_from_id(struct hdac_hdmi_priv *hdmi, 284 int pcm_idx) 285{ 286 struct hdac_hdmi_pcm *pcm; 287 288 list_for_each_entry(pcm, &hdmi->pcm_list, head) { 289 if (pcm->pcm_id == pcm_idx) 290 return pcm; 291 } 292 293 return NULL; 294} 295 296static unsigned int sad_format(const u8 *sad) 297{ 298 return ((sad[0] >> 0x3) & 0x1f); 299} 300 301static unsigned int sad_sample_bits_lpcm(const u8 *sad) 302{ 303 return (sad[2] & 7); 304} 305 306static int hdac_hdmi_eld_limit_formats(struct snd_pcm_runtime *runtime, 307 void *eld) 308{ 309 u64 formats = SNDRV_PCM_FMTBIT_S16; 310 int i; 311 const u8 *sad, *eld_buf = eld; 312 313 sad = drm_eld_sad(eld_buf); 314 if (!sad) 315 goto format_constraint; 316 317 for (i = drm_eld_sad_count(eld_buf); i > 0; i--, sad += 3) { 318 if (sad_format(sad) == 1) { /* AUDIO_CODING_TYPE_LPCM */ 319 320 /* 321 * the controller support 20 and 24 bits in 32 bit 322 * container so we set S32 323 */ 324 if (sad_sample_bits_lpcm(sad) & 0x6) 325 formats |= SNDRV_PCM_FMTBIT_S32; 326 } 327 } 328 329format_constraint: 330 return snd_pcm_hw_constraint_mask64(runtime, SNDRV_PCM_HW_PARAM_FORMAT, 331 formats); 332 333} 334 335static void 336hdac_hdmi_set_dip_index(struct hdac_device *hdev, hda_nid_t pin_nid, 337 int packet_index, int byte_index) 338{ 339 int val; 340 341 val = (packet_index << 5) | (byte_index & 0x1f); 342 snd_hdac_codec_write(hdev, pin_nid, 0, AC_VERB_SET_HDMI_DIP_INDEX, val); 343} 344 345struct dp_audio_infoframe { 346 u8 type; /* 0x84 */ 347 u8 len; /* 0x1b */ 348 u8 ver; /* 0x11 << 2 */ 349 350 u8 CC02_CT47; /* match with HDMI infoframe from this on */ 351 u8 SS01_SF24; 352 u8 CXT04; 353 u8 CA; 354 u8 LFEPBL01_LSV36_DM_INH7; 355}; 356 357static int hdac_hdmi_setup_audio_infoframe(struct hdac_device *hdev, 358 struct hdac_hdmi_pcm *pcm, struct hdac_hdmi_port *port) 359{ 360 uint8_t buffer[HDMI_INFOFRAME_HEADER_SIZE + HDMI_AUDIO_INFOFRAME_SIZE]; 361 struct hdmi_audio_infoframe frame; 362 struct hdac_hdmi_pin *pin = port->pin; 363 struct dp_audio_infoframe dp_ai; 364 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev); 365 struct hdac_hdmi_cvt *cvt = pcm->cvt; 366 u8 *dip; 367 int ret; 368 int i; 369 const u8 *eld_buf; 370 u8 conn_type; 371 int channels, ca; 372 373 ca = snd_hdac_channel_allocation(hdev, port->eld.info.spk_alloc, 374 pcm->channels, pcm->chmap_set, true, pcm->chmap); 375 376 channels = snd_hdac_get_active_channels(ca); 377 hdmi->chmap.ops.set_channel_count(hdev, cvt->nid, channels); 378 379 snd_hdac_setup_channel_mapping(&hdmi->chmap, pin->nid, false, ca, 380 pcm->channels, pcm->chmap, pcm->chmap_set); 381 382 eld_buf = port->eld.eld_buffer; 383 conn_type = drm_eld_get_conn_type(eld_buf); 384 385 switch (conn_type) { 386 case DRM_ELD_CONN_TYPE_HDMI: 387 hdmi_audio_infoframe_init(&frame); 388 389 frame.channels = channels; 390 frame.channel_allocation = ca; 391 392 ret = hdmi_audio_infoframe_pack(&frame, buffer, sizeof(buffer)); 393 if (ret < 0) 394 return ret; 395 396 break; 397 398 case DRM_ELD_CONN_TYPE_DP: 399 memset(&dp_ai, 0, sizeof(dp_ai)); 400 dp_ai.type = 0x84; 401 dp_ai.len = 0x1b; 402 dp_ai.ver = 0x11 << 2; 403 dp_ai.CC02_CT47 = channels - 1; 404 dp_ai.CA = ca; 405 406 dip = (u8 *)&dp_ai; 407 break; 408 409 default: 410 dev_err(&hdev->dev, "Invalid connection type: %d\n", conn_type); 411 return -EIO; 412 } 413 414 /* stop infoframe transmission */ 415 hdac_hdmi_set_dip_index(hdev, pin->nid, 0x0, 0x0); 416 snd_hdac_codec_write(hdev, pin->nid, 0, 417 AC_VERB_SET_HDMI_DIP_XMIT, AC_DIPXMIT_DISABLE); 418 419 420 /* Fill infoframe. Index auto-incremented */ 421 hdac_hdmi_set_dip_index(hdev, pin->nid, 0x0, 0x0); 422 if (conn_type == DRM_ELD_CONN_TYPE_HDMI) { 423 for (i = 0; i < sizeof(buffer); i++) 424 snd_hdac_codec_write(hdev, pin->nid, 0, 425 AC_VERB_SET_HDMI_DIP_DATA, buffer[i]); 426 } else { 427 for (i = 0; i < sizeof(dp_ai); i++) 428 snd_hdac_codec_write(hdev, pin->nid, 0, 429 AC_VERB_SET_HDMI_DIP_DATA, dip[i]); 430 } 431 432 /* Start infoframe */ 433 hdac_hdmi_set_dip_index(hdev, pin->nid, 0x0, 0x0); 434 snd_hdac_codec_write(hdev, pin->nid, 0, 435 AC_VERB_SET_HDMI_DIP_XMIT, AC_DIPXMIT_BEST); 436 437 return 0; 438} 439 440static int hdac_hdmi_set_stream(struct snd_soc_dai *dai, 441 void *stream, int direction) 442{ 443 struct hdac_hdmi_priv *hdmi = snd_soc_dai_get_drvdata(dai); 444 struct hdac_device *hdev = hdmi->hdev; 445 struct hdac_hdmi_dai_port_map *dai_map; 446 struct hdac_hdmi_pcm *pcm; 447 struct hdac_stream *hstream; 448 449 if (!stream) 450 return -EINVAL; 451 452 hstream = (struct hdac_stream *)stream; 453 454 dev_dbg(&hdev->dev, "%s: strm_tag: %d\n", __func__, hstream->stream_tag); 455 456 dai_map = &hdmi->dai_map[dai->id]; 457 458 pcm = hdac_hdmi_get_pcm_from_cvt(hdmi, dai_map->cvt); 459 460 if (pcm) 461 pcm->stream_tag = (hstream->stream_tag << 4); 462 463 return 0; 464} 465 466static int hdac_hdmi_set_hw_params(struct snd_pcm_substream *substream, 467 struct snd_pcm_hw_params *hparams, struct snd_soc_dai *dai) 468{ 469 struct hdac_hdmi_priv *hdmi = snd_soc_dai_get_drvdata(dai); 470 struct hdac_hdmi_dai_port_map *dai_map; 471 struct hdac_hdmi_pcm *pcm; 472 unsigned int bits; 473 int format; 474 475 dai_map = &hdmi->dai_map[dai->id]; 476 477 bits = snd_hdac_stream_format_bits(params_format(hparams), SNDRV_PCM_SUBFORMAT_STD, 478 dai->driver->playback.sig_bits); 479 format = snd_hdac_stream_format(params_channels(hparams), bits, params_rate(hparams)); 480 481 pcm = hdac_hdmi_get_pcm_from_cvt(hdmi, dai_map->cvt); 482 if (!pcm) 483 return -EIO; 484 485 pcm->format = format; 486 pcm->channels = params_channels(hparams); 487 488 return 0; 489} 490 491static int hdac_hdmi_query_port_connlist(struct hdac_device *hdev, 492 struct hdac_hdmi_pin *pin, 493 struct hdac_hdmi_port *port) 494{ 495 if (!(get_wcaps(hdev, pin->nid) & AC_WCAP_CONN_LIST)) { 496 dev_warn(&hdev->dev, 497 "HDMI: pin %d wcaps %#x does not support connection list\n", 498 pin->nid, get_wcaps(hdev, pin->nid)); 499 return -EINVAL; 500 } 501 502 if (hdac_hdmi_port_select_set(hdev, port) < 0) 503 return -EIO; 504 505 port->num_mux_nids = snd_hdac_get_connections(hdev, pin->nid, 506 port->mux_nids, HDA_MAX_CONNECTIONS); 507 if (port->num_mux_nids == 0) 508 dev_warn(&hdev->dev, 509 "No connections found for pin:port %d:%d\n", 510 pin->nid, port->id); 511 512 dev_dbg(&hdev->dev, "num_mux_nids %d for pin:port %d:%d\n", 513 port->num_mux_nids, pin->nid, port->id); 514 515 return port->num_mux_nids; 516} 517 518/* 519 * Query pcm list and return port to which stream is routed. 520 * 521 * Also query connection list of the pin, to validate the cvt to port map. 522 * 523 * Same stream rendering to multiple ports simultaneously can be done 524 * possibly, but not supported for now in driver. So return the first port 525 * connected. 526 */ 527static struct hdac_hdmi_port *hdac_hdmi_get_port_from_cvt( 528 struct hdac_device *hdev, 529 struct hdac_hdmi_priv *hdmi, 530 struct hdac_hdmi_cvt *cvt) 531{ 532 struct hdac_hdmi_pcm *pcm; 533 struct hdac_hdmi_port *port; 534 int ret, i; 535 536 list_for_each_entry(pcm, &hdmi->pcm_list, head) { 537 if (pcm->cvt == cvt) { 538 if (list_empty(&pcm->port_list)) 539 continue; 540 541 list_for_each_entry(port, &pcm->port_list, head) { 542 mutex_lock(&pcm->lock); 543 ret = hdac_hdmi_query_port_connlist(hdev, 544 port->pin, port); 545 mutex_unlock(&pcm->lock); 546 if (ret < 0) 547 continue; 548 549 for (i = 0; i < port->num_mux_nids; i++) { 550 if (port->mux_nids[i] == cvt->nid && 551 port->eld.monitor_present && 552 port->eld.eld_valid) 553 return port; 554 } 555 } 556 } 557 } 558 559 return NULL; 560} 561 562/* 563 * Go through all converters and ensure connection is set to 564 * the correct pin as set via kcontrols. 565 */ 566static void hdac_hdmi_verify_connect_sel_all_pins(struct hdac_device *hdev) 567{ 568 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev); 569 struct hdac_hdmi_port *port; 570 struct hdac_hdmi_cvt *cvt; 571 int cvt_idx = 0; 572 573 list_for_each_entry(cvt, &hdmi->cvt_list, head) { 574 port = hdac_hdmi_get_port_from_cvt(hdev, hdmi, cvt); 575 if (port && port->pin) { 576 snd_hdac_codec_write(hdev, port->pin->nid, 0, 577 AC_VERB_SET_CONNECT_SEL, cvt_idx); 578 dev_dbg(&hdev->dev, "%s: %s set connect %d -> %d\n", 579 __func__, cvt->name, port->pin->nid, cvt_idx); 580 } 581 ++cvt_idx; 582 } 583} 584 585/* 586 * This tries to get a valid pin and set the HW constraints based on the 587 * ELD. Even if a valid pin is not found return success so that device open 588 * doesn't fail. 589 */ 590static int hdac_hdmi_pcm_open(struct snd_pcm_substream *substream, 591 struct snd_soc_dai *dai) 592{ 593 struct hdac_hdmi_priv *hdmi = snd_soc_dai_get_drvdata(dai); 594 struct hdac_device *hdev = hdmi->hdev; 595 struct hdac_hdmi_dai_port_map *dai_map; 596 struct hdac_hdmi_cvt *cvt; 597 struct hdac_hdmi_port *port; 598 int ret; 599 600 dai_map = &hdmi->dai_map[dai->id]; 601 602 cvt = dai_map->cvt; 603 port = hdac_hdmi_get_port_from_cvt(hdev, hdmi, cvt); 604 605 /* 606 * To make PA and other userland happy. 607 * userland scans devices so returning error does not help. 608 */ 609 if (!port) 610 return 0; 611 if ((!port->eld.monitor_present) || 612 (!port->eld.eld_valid)) { 613 614 dev_warn(&hdev->dev, 615 "Failed: present?:%d ELD valid?:%d pin:port: %d:%d\n", 616 port->eld.monitor_present, port->eld.eld_valid, 617 port->pin->nid, port->id); 618 619 return 0; 620 } 621 622 dai_map->port = port; 623 624 ret = hdac_hdmi_eld_limit_formats(substream->runtime, 625 port->eld.eld_buffer); 626 if (ret < 0) 627 return ret; 628 629 return snd_pcm_hw_constraint_eld(substream->runtime, 630 port->eld.eld_buffer); 631} 632 633static void hdac_hdmi_pcm_close(struct snd_pcm_substream *substream, 634 struct snd_soc_dai *dai) 635{ 636 struct hdac_hdmi_priv *hdmi = snd_soc_dai_get_drvdata(dai); 637 struct hdac_hdmi_dai_port_map *dai_map; 638 struct hdac_hdmi_pcm *pcm; 639 640 dai_map = &hdmi->dai_map[dai->id]; 641 642 pcm = hdac_hdmi_get_pcm_from_cvt(hdmi, dai_map->cvt); 643 644 if (pcm) { 645 mutex_lock(&pcm->lock); 646 pcm->chmap_set = false; 647 memset(pcm->chmap, 0, sizeof(pcm->chmap)); 648 pcm->channels = 0; 649 mutex_unlock(&pcm->lock); 650 } 651 652 if (dai_map->port) 653 dai_map->port = NULL; 654} 655 656static int 657hdac_hdmi_query_cvt_params(struct hdac_device *hdev, struct hdac_hdmi_cvt *cvt) 658{ 659 unsigned int chans; 660 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev); 661 int err; 662 663 chans = get_wcaps(hdev, cvt->nid); 664 chans = get_wcaps_channels(chans); 665 666 cvt->params.channels_min = 2; 667 668 cvt->params.channels_max = chans; 669 if (chans > hdmi->chmap.channels_max) 670 hdmi->chmap.channels_max = chans; 671 672 err = snd_hdac_query_supported_pcm(hdev, cvt->nid, 673 &cvt->params.rates, 674 &cvt->params.formats, 675 NULL, 676 &cvt->params.maxbps); 677 if (err < 0) 678 dev_err(&hdev->dev, 679 "Failed to query pcm params for nid %d: %d\n", 680 cvt->nid, err); 681 682 return err; 683} 684 685static int hdac_hdmi_fill_widget_info(struct device *dev, 686 struct snd_soc_dapm_widget *w, enum snd_soc_dapm_type id, 687 void *priv, const char *wname, const char *stream, 688 struct snd_kcontrol_new *wc, int numkc, 689 int (*event)(struct snd_soc_dapm_widget *, 690 struct snd_kcontrol *, int), unsigned short event_flags) 691{ 692 w->id = id; 693 w->name = devm_kstrdup(dev, wname, GFP_KERNEL); 694 if (!w->name) 695 return -ENOMEM; 696 697 w->sname = stream; 698 w->reg = SND_SOC_NOPM; 699 w->shift = 0; 700 w->kcontrol_news = wc; 701 w->num_kcontrols = numkc; 702 w->priv = priv; 703 w->event = event; 704 w->event_flags = event_flags; 705 706 return 0; 707} 708 709static void hdac_hdmi_fill_route(struct snd_soc_dapm_route *route, 710 const char *sink, const char *control, const char *src, 711 int (*handler)(struct snd_soc_dapm_widget *src, 712 struct snd_soc_dapm_widget *sink)) 713{ 714 route->sink = sink; 715 route->source = src; 716 route->control = control; 717 route->connected = handler; 718} 719 720static struct hdac_hdmi_pcm *hdac_hdmi_get_pcm(struct hdac_device *hdev, 721 struct hdac_hdmi_port *port) 722{ 723 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev); 724 struct hdac_hdmi_pcm *pcm; 725 struct hdac_hdmi_port *p; 726 727 list_for_each_entry(pcm, &hdmi->pcm_list, head) { 728 if (list_empty(&pcm->port_list)) 729 continue; 730 731 list_for_each_entry(p, &pcm->port_list, head) { 732 if (p->id == port->id && port->pin == p->pin) 733 return pcm; 734 } 735 } 736 737 return NULL; 738} 739 740static void hdac_hdmi_set_power_state(struct hdac_device *hdev, 741 hda_nid_t nid, unsigned int pwr_state) 742{ 743 int count; 744 unsigned int state; 745 746 if (get_wcaps(hdev, nid) & AC_WCAP_POWER) { 747 if (!snd_hdac_check_power_state(hdev, nid, pwr_state)) { 748 for (count = 0; count < 10; count++) { 749 snd_hdac_codec_read(hdev, nid, 0, 750 AC_VERB_SET_POWER_STATE, 751 pwr_state); 752 state = snd_hdac_sync_power_state(hdev, 753 nid, pwr_state); 754 if (!(state & AC_PWRST_ERROR)) 755 break; 756 } 757 } 758 } 759} 760 761static void hdac_hdmi_set_amp(struct hdac_device *hdev, 762 hda_nid_t nid, int val) 763{ 764 if (get_wcaps(hdev, nid) & AC_WCAP_OUT_AMP) 765 snd_hdac_codec_write(hdev, nid, 0, 766 AC_VERB_SET_AMP_GAIN_MUTE, val); 767} 768 769 770static int hdac_hdmi_pin_output_widget_event(struct snd_soc_dapm_widget *w, 771 struct snd_kcontrol *kc, int event) 772{ 773 struct hdac_hdmi_port *port = w->priv; 774 struct hdac_device *hdev = dev_to_hdac_dev(w->dapm->dev); 775 struct hdac_hdmi_pcm *pcm; 776 777 dev_dbg(&hdev->dev, "%s: widget: %s event: %x\n", 778 __func__, w->name, event); 779 780 pcm = hdac_hdmi_get_pcm(hdev, port); 781 if (!pcm) 782 return -EIO; 783 784 /* set the device if pin is mst_capable */ 785 if (hdac_hdmi_port_select_set(hdev, port) < 0) 786 return -EIO; 787 788 switch (event) { 789 case SND_SOC_DAPM_PRE_PMU: 790 hdac_hdmi_set_power_state(hdev, port->pin->nid, AC_PWRST_D0); 791 792 /* Enable out path for this pin widget */ 793 snd_hdac_codec_write(hdev, port->pin->nid, 0, 794 AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT); 795 796 hdac_hdmi_set_amp(hdev, port->pin->nid, AMP_OUT_UNMUTE); 797 798 return hdac_hdmi_setup_audio_infoframe(hdev, pcm, port); 799 800 case SND_SOC_DAPM_POST_PMD: 801 hdac_hdmi_set_amp(hdev, port->pin->nid, AMP_OUT_MUTE); 802 803 /* Disable out path for this pin widget */ 804 snd_hdac_codec_write(hdev, port->pin->nid, 0, 805 AC_VERB_SET_PIN_WIDGET_CONTROL, 0); 806 807 hdac_hdmi_set_power_state(hdev, port->pin->nid, AC_PWRST_D3); 808 break; 809 810 } 811 812 return 0; 813} 814 815static int hdac_hdmi_cvt_output_widget_event(struct snd_soc_dapm_widget *w, 816 struct snd_kcontrol *kc, int event) 817{ 818 struct hdac_hdmi_cvt *cvt = w->priv; 819 struct hdac_device *hdev = dev_to_hdac_dev(w->dapm->dev); 820 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev); 821 struct hdac_hdmi_pcm *pcm; 822 823 dev_dbg(&hdev->dev, "%s: widget: %s event: %x\n", 824 __func__, w->name, event); 825 826 pcm = hdac_hdmi_get_pcm_from_cvt(hdmi, cvt); 827 if (!pcm) 828 return -EIO; 829 830 switch (event) { 831 case SND_SOC_DAPM_PRE_PMU: 832 hdac_hdmi_set_power_state(hdev, cvt->nid, AC_PWRST_D0); 833 834 /* Enable transmission */ 835 snd_hdac_codec_write(hdev, cvt->nid, 0, 836 AC_VERB_SET_DIGI_CONVERT_1, 1); 837 838 /* Category Code (CC) to zero */ 839 snd_hdac_codec_write(hdev, cvt->nid, 0, 840 AC_VERB_SET_DIGI_CONVERT_2, 0); 841 842 snd_hdac_codec_write(hdev, cvt->nid, 0, 843 AC_VERB_SET_CHANNEL_STREAMID, pcm->stream_tag); 844 snd_hdac_codec_write(hdev, cvt->nid, 0, 845 AC_VERB_SET_STREAM_FORMAT, pcm->format); 846 847 /* 848 * The connection indices are shared by all converters and 849 * may interfere with each other. Ensure correct 850 * routing for all converters at stream start. 851 */ 852 hdac_hdmi_verify_connect_sel_all_pins(hdev); 853 854 break; 855 856 case SND_SOC_DAPM_POST_PMD: 857 snd_hdac_codec_write(hdev, cvt->nid, 0, 858 AC_VERB_SET_CHANNEL_STREAMID, 0); 859 snd_hdac_codec_write(hdev, cvt->nid, 0, 860 AC_VERB_SET_STREAM_FORMAT, 0); 861 862 hdac_hdmi_set_power_state(hdev, cvt->nid, AC_PWRST_D3); 863 break; 864 865 } 866 867 return 0; 868} 869 870static int hdac_hdmi_pin_mux_widget_event(struct snd_soc_dapm_widget *w, 871 struct snd_kcontrol *kc, int event) 872{ 873 struct hdac_hdmi_port *port = w->priv; 874 struct hdac_device *hdev = dev_to_hdac_dev(w->dapm->dev); 875 int mux_idx; 876 877 dev_dbg(&hdev->dev, "%s: widget: %s event: %x\n", 878 __func__, w->name, event); 879 880 if (!kc) 881 kc = w->kcontrols[0]; 882 883 mux_idx = dapm_kcontrol_get_value(kc); 884 885 /* set the device if pin is mst_capable */ 886 if (hdac_hdmi_port_select_set(hdev, port) < 0) 887 return -EIO; 888 889 if (mux_idx > 0) { 890 snd_hdac_codec_write(hdev, port->pin->nid, 0, 891 AC_VERB_SET_CONNECT_SEL, (mux_idx - 1)); 892 } 893 894 return 0; 895} 896 897/* 898 * Based on user selection, map the PINs with the PCMs. 899 */ 900static int hdac_hdmi_set_pin_port_mux(struct snd_kcontrol *kcontrol, 901 struct snd_ctl_elem_value *ucontrol) 902{ 903 int ret; 904 struct hdac_hdmi_port *p, *p_next; 905 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; 906 struct snd_soc_dapm_widget *w = snd_soc_dapm_kcontrol_widget(kcontrol); 907 struct snd_soc_dapm_context *dapm = w->dapm; 908 struct hdac_hdmi_port *port = w->priv; 909 struct hdac_device *hdev = dev_to_hdac_dev(dapm->dev); 910 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev); 911 struct hdac_hdmi_pcm *pcm; 912 const char *cvt_name = e->texts[ucontrol->value.enumerated.item[0]]; 913 914 ret = snd_soc_dapm_put_enum_double(kcontrol, ucontrol); 915 if (ret < 0) 916 return ret; 917 918 if (port == NULL) 919 return -EINVAL; 920 921 mutex_lock(&hdmi->pin_mutex); 922 list_for_each_entry(pcm, &hdmi->pcm_list, head) { 923 if (list_empty(&pcm->port_list)) 924 continue; 925 926 list_for_each_entry_safe(p, p_next, &pcm->port_list, head) { 927 if (p == port && p->id == port->id && 928 p->pin == port->pin) { 929 hdac_hdmi_jack_report_sync(pcm, port, false); 930 list_del(&p->head); 931 } 932 } 933 } 934 935 /* 936 * Jack status is not reported during device probe as the 937 * PCMs are not registered by then. So report it here. 938 */ 939 list_for_each_entry(pcm, &hdmi->pcm_list, head) { 940 if (!strcmp(cvt_name, pcm->cvt->name)) { 941 list_add_tail(&port->head, &pcm->port_list); 942 if (port->eld.monitor_present && port->eld.eld_valid) { 943 hdac_hdmi_jack_report_sync(pcm, port, true); 944 mutex_unlock(&hdmi->pin_mutex); 945 return ret; 946 } 947 } 948 } 949 mutex_unlock(&hdmi->pin_mutex); 950 951 return ret; 952} 953 954/* 955 * Ideally the Mux inputs should be based on the num_muxs enumerated, but 956 * the display driver seem to be programming the connection list for the pin 957 * widget runtime. 958 * 959 * So programming all the possible inputs for the mux, the user has to take 960 * care of selecting the right one and leaving all other inputs selected to 961 * "NONE" 962 */ 963static int hdac_hdmi_create_pin_port_muxs(struct hdac_device *hdev, 964 struct hdac_hdmi_port *port, 965 struct snd_soc_dapm_widget *widget, 966 const char *widget_name) 967{ 968 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev); 969 struct hdac_hdmi_pin *pin = port->pin; 970 struct snd_kcontrol_new *kc; 971 struct hdac_hdmi_cvt *cvt; 972 struct soc_enum *se; 973 char kc_name[NAME_SIZE]; 974 char mux_items[NAME_SIZE]; 975 /* To hold inputs to the Pin mux */ 976 char *items[HDA_MAX_CONNECTIONS]; 977 int i = 0; 978 int num_items = hdmi->num_cvt + 1; 979 980 kc = devm_kzalloc(&hdev->dev, sizeof(*kc), GFP_KERNEL); 981 if (!kc) 982 return -ENOMEM; 983 984 se = devm_kzalloc(&hdev->dev, sizeof(*se), GFP_KERNEL); 985 if (!se) 986 return -ENOMEM; 987 988 snprintf(kc_name, NAME_SIZE, "Pin %d port %d Input", 989 pin->nid, port->id); 990 kc->name = devm_kstrdup(&hdev->dev, kc_name, GFP_KERNEL); 991 if (!kc->name) 992 return -ENOMEM; 993 994 kc->private_value = (long)se; 995 kc->iface = SNDRV_CTL_ELEM_IFACE_MIXER; 996 kc->access = 0; 997 kc->info = snd_soc_info_enum_double; 998 kc->put = hdac_hdmi_set_pin_port_mux; 999 kc->get = snd_soc_dapm_get_enum_double; 1000 1001 se->reg = SND_SOC_NOPM; 1002 1003 /* enum texts: ["NONE", "cvt #", "cvt #", ...] */ 1004 se->items = num_items; 1005 se->mask = roundup_pow_of_two(se->items) - 1; 1006 1007 sprintf(mux_items, "NONE"); 1008 items[i] = devm_kstrdup(&hdev->dev, mux_items, GFP_KERNEL); 1009 if (!items[i]) 1010 return -ENOMEM; 1011 1012 list_for_each_entry(cvt, &hdmi->cvt_list, head) { 1013 i++; 1014 sprintf(mux_items, "cvt %d", cvt->nid); 1015 items[i] = devm_kstrdup(&hdev->dev, mux_items, GFP_KERNEL); 1016 if (!items[i]) 1017 return -ENOMEM; 1018 } 1019 1020 se->texts = devm_kmemdup(&hdev->dev, items, 1021 (num_items * sizeof(char *)), GFP_KERNEL); 1022 if (!se->texts) 1023 return -ENOMEM; 1024 1025 return hdac_hdmi_fill_widget_info(&hdev->dev, widget, 1026 snd_soc_dapm_mux, port, widget_name, NULL, kc, 1, 1027 hdac_hdmi_pin_mux_widget_event, 1028 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_REG); 1029} 1030 1031/* Add cvt <- input <- mux route map */ 1032static void hdac_hdmi_add_pinmux_cvt_route(struct hdac_device *hdev, 1033 struct snd_soc_dapm_widget *widgets, 1034 struct snd_soc_dapm_route *route, int rindex) 1035{ 1036 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev); 1037 const struct snd_kcontrol_new *kc; 1038 struct soc_enum *se; 1039 int mux_index = hdmi->num_cvt + hdmi->num_ports; 1040 int i, j; 1041 1042 for (i = 0; i < hdmi->num_ports; i++) { 1043 kc = widgets[mux_index].kcontrol_news; 1044 se = (struct soc_enum *)kc->private_value; 1045 for (j = 0; j < hdmi->num_cvt; j++) { 1046 hdac_hdmi_fill_route(&route[rindex], 1047 widgets[mux_index].name, 1048 se->texts[j + 1], 1049 widgets[j].name, NULL); 1050 1051 rindex++; 1052 } 1053 1054 mux_index++; 1055 } 1056} 1057 1058/* 1059 * Widgets are added in the below sequence 1060 * Converter widgets for num converters enumerated 1061 * Pin-port widgets for num ports for Pins enumerated 1062 * Pin-port mux widgets to represent connenction list of pin widget 1063 * 1064 * For each port, one Mux and One output widget is added 1065 * Total widgets elements = num_cvt + (num_ports * 2); 1066 * 1067 * Routes are added as below: 1068 * pin-port mux -> pin (based on num_ports) 1069 * cvt -> "Input sel control" -> pin-port_mux 1070 * 1071 * Total route elements: 1072 * num_ports + (pin_muxes * num_cvt) 1073 */ 1074static int create_fill_widget_route_map(struct snd_soc_dapm_context *dapm) 1075{ 1076 struct snd_soc_dapm_widget *widgets; 1077 struct snd_soc_dapm_route *route; 1078 struct hdac_device *hdev = dev_to_hdac_dev(dapm->dev); 1079 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev); 1080 struct snd_soc_dai_driver *dai_drv = hdmi->dai_drv; 1081 char widget_name[NAME_SIZE]; 1082 struct hdac_hdmi_cvt *cvt; 1083 struct hdac_hdmi_pin *pin; 1084 int ret, i = 0, num_routes = 0, j; 1085 1086 if (list_empty(&hdmi->cvt_list) || list_empty(&hdmi->pin_list)) 1087 return -EINVAL; 1088 1089 widgets = devm_kzalloc(dapm->dev, (sizeof(*widgets) * 1090 ((2 * hdmi->num_ports) + hdmi->num_cvt)), 1091 GFP_KERNEL); 1092 1093 if (!widgets) 1094 return -ENOMEM; 1095 1096 /* DAPM widgets to represent each converter widget */ 1097 list_for_each_entry(cvt, &hdmi->cvt_list, head) { 1098 sprintf(widget_name, "Converter %d", cvt->nid); 1099 ret = hdac_hdmi_fill_widget_info(dapm->dev, &widgets[i], 1100 snd_soc_dapm_aif_in, cvt, 1101 widget_name, dai_drv[i].playback.stream_name, NULL, 0, 1102 hdac_hdmi_cvt_output_widget_event, 1103 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD); 1104 if (ret < 0) 1105 return ret; 1106 i++; 1107 } 1108 1109 list_for_each_entry(pin, &hdmi->pin_list, head) { 1110 for (j = 0; j < pin->num_ports; j++) { 1111 sprintf(widget_name, "hif%d-%d Output", 1112 pin->nid, pin->ports[j].id); 1113 ret = hdac_hdmi_fill_widget_info(dapm->dev, &widgets[i], 1114 snd_soc_dapm_output, &pin->ports[j], 1115 widget_name, NULL, NULL, 0, 1116 hdac_hdmi_pin_output_widget_event, 1117 SND_SOC_DAPM_PRE_PMU | 1118 SND_SOC_DAPM_POST_PMD); 1119 if (ret < 0) 1120 return ret; 1121 pin->ports[j].output_pin = widgets[i].name; 1122 i++; 1123 } 1124 } 1125 1126 /* DAPM widgets to represent the connection list to pin widget */ 1127 list_for_each_entry(pin, &hdmi->pin_list, head) { 1128 for (j = 0; j < pin->num_ports; j++) { 1129 sprintf(widget_name, "Pin%d-Port%d Mux", 1130 pin->nid, pin->ports[j].id); 1131 ret = hdac_hdmi_create_pin_port_muxs(hdev, 1132 &pin->ports[j], &widgets[i], 1133 widget_name); 1134 if (ret < 0) 1135 return ret; 1136 i++; 1137 1138 /* For cvt to pin_mux mapping */ 1139 num_routes += hdmi->num_cvt; 1140 1141 /* For pin_mux to pin mapping */ 1142 num_routes++; 1143 } 1144 } 1145 1146 route = devm_kzalloc(dapm->dev, (sizeof(*route) * num_routes), 1147 GFP_KERNEL); 1148 if (!route) 1149 return -ENOMEM; 1150 1151 i = 0; 1152 /* Add pin <- NULL <- mux route map */ 1153 list_for_each_entry(pin, &hdmi->pin_list, head) { 1154 for (j = 0; j < pin->num_ports; j++) { 1155 int sink_index = i + hdmi->num_cvt; 1156 int src_index = sink_index + pin->num_ports * 1157 hdmi->num_pin; 1158 1159 hdac_hdmi_fill_route(&route[i], 1160 widgets[sink_index].name, NULL, 1161 widgets[src_index].name, NULL); 1162 i++; 1163 } 1164 } 1165 1166 hdac_hdmi_add_pinmux_cvt_route(hdev, widgets, route, i); 1167 1168 snd_soc_dapm_new_controls(dapm, widgets, 1169 ((2 * hdmi->num_ports) + hdmi->num_cvt)); 1170 1171 snd_soc_dapm_add_routes(dapm, route, num_routes); 1172 snd_soc_dapm_new_widgets(dapm->card); 1173 1174 return 0; 1175 1176} 1177 1178static int hdac_hdmi_init_dai_map(struct hdac_device *hdev) 1179{ 1180 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev); 1181 struct hdac_hdmi_dai_port_map *dai_map; 1182 struct hdac_hdmi_cvt *cvt; 1183 int dai_id = 0; 1184 1185 if (list_empty(&hdmi->cvt_list)) 1186 return -EINVAL; 1187 1188 list_for_each_entry(cvt, &hdmi->cvt_list, head) { 1189 dai_map = &hdmi->dai_map[dai_id]; 1190 dai_map->dai_id = dai_id; 1191 dai_map->cvt = cvt; 1192 1193 dai_id++; 1194 1195 if (dai_id == HDA_MAX_CVTS) { 1196 dev_warn(&hdev->dev, 1197 "Max dais supported: %d\n", dai_id); 1198 break; 1199 } 1200 } 1201 1202 return 0; 1203} 1204 1205static int hdac_hdmi_add_cvt(struct hdac_device *hdev, hda_nid_t nid) 1206{ 1207 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev); 1208 struct hdac_hdmi_cvt *cvt; 1209 char name[NAME_SIZE]; 1210 1211 cvt = devm_kzalloc(&hdev->dev, sizeof(*cvt), GFP_KERNEL); 1212 if (!cvt) 1213 return -ENOMEM; 1214 1215 cvt->nid = nid; 1216 sprintf(name, "cvt %d", cvt->nid); 1217 cvt->name = devm_kstrdup(&hdev->dev, name, GFP_KERNEL); 1218 if (!cvt->name) 1219 return -ENOMEM; 1220 1221 list_add_tail(&cvt->head, &hdmi->cvt_list); 1222 hdmi->num_cvt++; 1223 1224 return hdac_hdmi_query_cvt_params(hdev, cvt); 1225} 1226 1227static int hdac_hdmi_parse_eld(struct hdac_device *hdev, 1228 struct hdac_hdmi_port *port) 1229{ 1230 unsigned int ver, mnl; 1231 1232 ver = (port->eld.eld_buffer[DRM_ELD_VER] & DRM_ELD_VER_MASK) 1233 >> DRM_ELD_VER_SHIFT; 1234 1235 if (ver != ELD_VER_CEA_861D && ver != ELD_VER_PARTIAL) { 1236 dev_err(&hdev->dev, "HDMI: Unknown ELD version %d\n", ver); 1237 return -EINVAL; 1238 } 1239 1240 mnl = (port->eld.eld_buffer[DRM_ELD_CEA_EDID_VER_MNL] & 1241 DRM_ELD_MNL_MASK) >> DRM_ELD_MNL_SHIFT; 1242 1243 if (mnl > ELD_MAX_MNL) { 1244 dev_err(&hdev->dev, "HDMI: MNL Invalid %d\n", mnl); 1245 return -EINVAL; 1246 } 1247 1248 port->eld.info.spk_alloc = port->eld.eld_buffer[DRM_ELD_SPEAKER]; 1249 1250 return 0; 1251} 1252 1253static void hdac_hdmi_present_sense(struct hdac_hdmi_pin *pin, 1254 struct hdac_hdmi_port *port) 1255{ 1256 struct hdac_device *hdev = pin->hdev; 1257 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev); 1258 struct hdac_hdmi_pcm *pcm; 1259 int size = 0; 1260 int port_id = -1; 1261 bool eld_valid, eld_changed; 1262 1263 if (!hdmi) 1264 return; 1265 1266 /* 1267 * In case of non MST pin, get_eld info API expectes port 1268 * to be -1. 1269 */ 1270 mutex_lock(&hdmi->pin_mutex); 1271 port->eld.monitor_present = false; 1272 1273 if (pin->mst_capable) 1274 port_id = port->id; 1275 1276 size = snd_hdac_acomp_get_eld(hdev, pin->nid, port_id, 1277 &port->eld.monitor_present, 1278 port->eld.eld_buffer, 1279 ELD_MAX_SIZE); 1280 1281 if (size > 0) { 1282 size = min(size, ELD_MAX_SIZE); 1283 if (hdac_hdmi_parse_eld(hdev, port) < 0) 1284 size = -EINVAL; 1285 } 1286 1287 eld_valid = port->eld.eld_valid; 1288 1289 if (size > 0) { 1290 port->eld.eld_valid = true; 1291 port->eld.eld_size = size; 1292 } else { 1293 port->eld.eld_valid = false; 1294 port->eld.eld_size = 0; 1295 } 1296 1297 eld_changed = (eld_valid != port->eld.eld_valid); 1298 1299 pcm = hdac_hdmi_get_pcm(hdev, port); 1300 1301 if (!port->eld.monitor_present || !port->eld.eld_valid) { 1302 1303 dev_err(&hdev->dev, "%s: disconnect for pin:port %d:%d\n", 1304 __func__, pin->nid, port->id); 1305 1306 /* 1307 * PCMs are not registered during device probe, so don't 1308 * report jack here. It will be done in usermode mux 1309 * control select. 1310 */ 1311 if (pcm) { 1312 hdac_hdmi_jack_report(pcm, port, false); 1313 schedule_work(&port->dapm_work); 1314 } 1315 1316 mutex_unlock(&hdmi->pin_mutex); 1317 return; 1318 } 1319 1320 if (port->eld.monitor_present && port->eld.eld_valid) { 1321 if (pcm) { 1322 hdac_hdmi_jack_report(pcm, port, true); 1323 schedule_work(&port->dapm_work); 1324 } 1325 1326 print_hex_dump_debug("ELD: ", DUMP_PREFIX_OFFSET, 16, 1, 1327 port->eld.eld_buffer, port->eld.eld_size, false); 1328 1329 } 1330 mutex_unlock(&hdmi->pin_mutex); 1331 1332 if (eld_changed && pcm) 1333 snd_ctl_notify(hdmi->card, 1334 SNDRV_CTL_EVENT_MASK_VALUE | 1335 SNDRV_CTL_EVENT_MASK_INFO, 1336 &pcm->eld_ctl->id); 1337} 1338 1339static int hdac_hdmi_add_ports(struct hdac_device *hdev, 1340 struct hdac_hdmi_pin *pin) 1341{ 1342 struct hdac_hdmi_port *ports; 1343 int max_ports = HDA_MAX_PORTS; 1344 int i; 1345 1346 /* 1347 * FIXME: max_port may vary for each platform, so pass this as 1348 * as driver data or query from i915 interface when this API is 1349 * implemented. 1350 */ 1351 1352 ports = devm_kcalloc(&hdev->dev, max_ports, sizeof(*ports), GFP_KERNEL); 1353 if (!ports) 1354 return -ENOMEM; 1355 1356 for (i = 0; i < max_ports; i++) { 1357 ports[i].id = i; 1358 ports[i].pin = pin; 1359 INIT_WORK(&ports[i].dapm_work, hdac_hdmi_jack_dapm_work); 1360 } 1361 pin->ports = ports; 1362 pin->num_ports = max_ports; 1363 return 0; 1364} 1365 1366static int hdac_hdmi_add_pin(struct hdac_device *hdev, hda_nid_t nid) 1367{ 1368 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev); 1369 struct hdac_hdmi_pin *pin; 1370 int ret; 1371 1372 pin = devm_kzalloc(&hdev->dev, sizeof(*pin), GFP_KERNEL); 1373 if (!pin) 1374 return -ENOMEM; 1375 1376 pin->nid = nid; 1377 pin->mst_capable = false; 1378 pin->hdev = hdev; 1379 ret = hdac_hdmi_add_ports(hdev, pin); 1380 if (ret < 0) 1381 return ret; 1382 1383 list_add_tail(&pin->head, &hdmi->pin_list); 1384 hdmi->num_pin++; 1385 hdmi->num_ports += pin->num_ports; 1386 1387 return 0; 1388} 1389 1390#define INTEL_VENDOR_NID 0x08 1391#define INTEL_GLK_VENDOR_NID 0x0b 1392#define INTEL_GET_VENDOR_VERB 0xf81 1393#define INTEL_SET_VENDOR_VERB 0x781 1394#define INTEL_EN_DP12 0x02 /* enable DP 1.2 features */ 1395#define INTEL_EN_ALL_PIN_CVTS 0x01 /* enable 2nd & 3rd pins and convertors */ 1396 1397static void hdac_hdmi_skl_enable_all_pins(struct hdac_device *hdev) 1398{ 1399 unsigned int vendor_param; 1400 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev); 1401 unsigned int vendor_nid = hdmi->drv_data->vendor_nid; 1402 1403 vendor_param = snd_hdac_codec_read(hdev, vendor_nid, 0, 1404 INTEL_GET_VENDOR_VERB, 0); 1405 if (vendor_param == -1 || vendor_param & INTEL_EN_ALL_PIN_CVTS) 1406 return; 1407 1408 vendor_param |= INTEL_EN_ALL_PIN_CVTS; 1409 vendor_param = snd_hdac_codec_read(hdev, vendor_nid, 0, 1410 INTEL_SET_VENDOR_VERB, vendor_param); 1411 if (vendor_param == -1) 1412 return; 1413} 1414 1415static void hdac_hdmi_skl_enable_dp12(struct hdac_device *hdev) 1416{ 1417 unsigned int vendor_param; 1418 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev); 1419 unsigned int vendor_nid = hdmi->drv_data->vendor_nid; 1420 1421 vendor_param = snd_hdac_codec_read(hdev, vendor_nid, 0, 1422 INTEL_GET_VENDOR_VERB, 0); 1423 if (vendor_param == -1 || vendor_param & INTEL_EN_DP12) 1424 return; 1425 1426 /* enable DP1.2 mode */ 1427 vendor_param |= INTEL_EN_DP12; 1428 vendor_param = snd_hdac_codec_read(hdev, vendor_nid, 0, 1429 INTEL_SET_VENDOR_VERB, vendor_param); 1430 if (vendor_param == -1) 1431 return; 1432 1433} 1434 1435static int hdac_hdmi_eld_ctl_info(struct snd_kcontrol *kcontrol, 1436 struct snd_ctl_elem_info *uinfo) 1437{ 1438 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); 1439 struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component); 1440 struct hdac_hdmi_pcm *pcm; 1441 struct hdac_hdmi_port *port; 1442 struct hdac_hdmi_eld *eld; 1443 1444 uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES; 1445 uinfo->count = 0; 1446 1447 pcm = get_hdmi_pcm_from_id(hdmi, kcontrol->id.device); 1448 if (!pcm) { 1449 dev_dbg(component->dev, "%s: no pcm, device %d\n", __func__, 1450 kcontrol->id.device); 1451 return 0; 1452 } 1453 1454 if (list_empty(&pcm->port_list)) { 1455 dev_dbg(component->dev, "%s: empty port list, device %d\n", 1456 __func__, kcontrol->id.device); 1457 return 0; 1458 } 1459 1460 mutex_lock(&hdmi->pin_mutex); 1461 1462 list_for_each_entry(port, &pcm->port_list, head) { 1463 eld = &port->eld; 1464 1465 if (eld->eld_valid) { 1466 uinfo->count = eld->eld_size; 1467 break; 1468 } 1469 } 1470 1471 mutex_unlock(&hdmi->pin_mutex); 1472 1473 return 0; 1474} 1475 1476static int hdac_hdmi_eld_ctl_get(struct snd_kcontrol *kcontrol, 1477 struct snd_ctl_elem_value *ucontrol) 1478{ 1479 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); 1480 struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component); 1481 struct hdac_hdmi_pcm *pcm; 1482 struct hdac_hdmi_port *port; 1483 struct hdac_hdmi_eld *eld; 1484 1485 memset(ucontrol->value.bytes.data, 0, sizeof(ucontrol->value.bytes.data)); 1486 1487 pcm = get_hdmi_pcm_from_id(hdmi, kcontrol->id.device); 1488 if (!pcm) { 1489 dev_dbg(component->dev, "%s: no pcm, device %d\n", __func__, 1490 kcontrol->id.device); 1491 return 0; 1492 } 1493 1494 if (list_empty(&pcm->port_list)) { 1495 dev_dbg(component->dev, "%s: empty port list, device %d\n", 1496 __func__, kcontrol->id.device); 1497 return 0; 1498 } 1499 1500 mutex_lock(&hdmi->pin_mutex); 1501 1502 list_for_each_entry(port, &pcm->port_list, head) { 1503 eld = &port->eld; 1504 1505 if (!eld->eld_valid) 1506 continue; 1507 1508 if (eld->eld_size > ARRAY_SIZE(ucontrol->value.bytes.data) || 1509 eld->eld_size > ELD_MAX_SIZE) { 1510 mutex_unlock(&hdmi->pin_mutex); 1511 1512 dev_err(component->dev, "%s: buffer too small, device %d eld_size %d\n", 1513 __func__, kcontrol->id.device, eld->eld_size); 1514 snd_BUG(); 1515 return -EINVAL; 1516 } 1517 1518 memcpy(ucontrol->value.bytes.data, eld->eld_buffer, 1519 eld->eld_size); 1520 break; 1521 } 1522 1523 mutex_unlock(&hdmi->pin_mutex); 1524 1525 return 0; 1526} 1527 1528static int hdac_hdmi_create_eld_ctl(struct snd_soc_component *component, struct hdac_hdmi_pcm *pcm) 1529{ 1530 struct snd_kcontrol *kctl; 1531 struct snd_kcontrol_new hdmi_eld_ctl = { 1532 .access = SNDRV_CTL_ELEM_ACCESS_READ | 1533 SNDRV_CTL_ELEM_ACCESS_VOLATILE, 1534 .iface = SNDRV_CTL_ELEM_IFACE_PCM, 1535 .name = "ELD", 1536 .info = hdac_hdmi_eld_ctl_info, 1537 .get = hdac_hdmi_eld_ctl_get, 1538 .device = pcm->pcm_id, 1539 }; 1540 1541 /* add ELD ctl with the device number corresponding to the PCM stream */ 1542 kctl = snd_ctl_new1(&hdmi_eld_ctl, component); 1543 if (!kctl) 1544 return -ENOMEM; 1545 1546 pcm->eld_ctl = kctl; 1547 1548 return snd_ctl_add(component->card->snd_card, kctl); 1549} 1550 1551static const struct snd_soc_dai_ops hdmi_dai_ops = { 1552 .startup = hdac_hdmi_pcm_open, 1553 .shutdown = hdac_hdmi_pcm_close, 1554 .hw_params = hdac_hdmi_set_hw_params, 1555 .set_stream = hdac_hdmi_set_stream, 1556}; 1557 1558/* 1559 * Each converter can support a stream independently. So a dai is created 1560 * based on the number of converter queried. 1561 */ 1562static int hdac_hdmi_create_dais(struct hdac_device *hdev, 1563 struct snd_soc_dai_driver **dais, 1564 struct hdac_hdmi_priv *hdmi, int num_dais) 1565{ 1566 struct snd_soc_dai_driver *hdmi_dais; 1567 struct hdac_hdmi_cvt *cvt; 1568 char name[NAME_SIZE], dai_name[NAME_SIZE]; 1569 int i = 0; 1570 u32 rates, bps; 1571 unsigned int rate_max = 384000, rate_min = 8000; 1572 u64 formats; 1573 int ret; 1574 1575 hdmi_dais = devm_kzalloc(&hdev->dev, 1576 (sizeof(*hdmi_dais) * num_dais), 1577 GFP_KERNEL); 1578 if (!hdmi_dais) 1579 return -ENOMEM; 1580 1581 list_for_each_entry(cvt, &hdmi->cvt_list, head) { 1582 ret = snd_hdac_query_supported_pcm(hdev, cvt->nid, 1583 &rates, &formats, NULL, &bps); 1584 if (ret) 1585 return ret; 1586 1587 /* Filter out 44.1, 88.2 and 176.4Khz */ 1588 rates &= ~(SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_88200 | 1589 SNDRV_PCM_RATE_176400); 1590 if (!rates) 1591 return -EINVAL; 1592 1593 sprintf(dai_name, "intel-hdmi-hifi%d", i+1); 1594 hdmi_dais[i].name = devm_kstrdup(&hdev->dev, 1595 dai_name, GFP_KERNEL); 1596 1597 if (!hdmi_dais[i].name) 1598 return -ENOMEM; 1599 1600 snprintf(name, sizeof(name), "hifi%d", i+1); 1601 hdmi_dais[i].playback.stream_name = 1602 devm_kstrdup(&hdev->dev, name, GFP_KERNEL); 1603 if (!hdmi_dais[i].playback.stream_name) 1604 return -ENOMEM; 1605 1606 /* 1607 * Set caps based on capability queried from the converter. 1608 * It will be constrained runtime based on ELD queried. 1609 */ 1610 hdmi_dais[i].playback.formats = formats; 1611 hdmi_dais[i].playback.rates = rates; 1612 hdmi_dais[i].playback.rate_max = rate_max; 1613 hdmi_dais[i].playback.rate_min = rate_min; 1614 hdmi_dais[i].playback.channels_min = 2; 1615 hdmi_dais[i].playback.channels_max = 2; 1616 hdmi_dais[i].playback.sig_bits = bps; 1617 hdmi_dais[i].ops = &hdmi_dai_ops; 1618 i++; 1619 } 1620 1621 *dais = hdmi_dais; 1622 hdmi->dai_drv = hdmi_dais; 1623 1624 return 0; 1625} 1626 1627/* 1628 * Parse all nodes and store the cvt/pin nids in array 1629 * Add one time initialization for pin and cvt widgets 1630 */ 1631static int hdac_hdmi_parse_and_map_nid(struct hdac_device *hdev, 1632 struct snd_soc_dai_driver **dais, int *num_dais) 1633{ 1634 hda_nid_t nid; 1635 int i, num_nodes; 1636 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev); 1637 int ret; 1638 1639 hdac_hdmi_skl_enable_all_pins(hdev); 1640 hdac_hdmi_skl_enable_dp12(hdev); 1641 1642 num_nodes = snd_hdac_get_sub_nodes(hdev, hdev->afg, &nid); 1643 if (!nid || num_nodes <= 0) { 1644 dev_warn(&hdev->dev, "HDMI: failed to get afg sub nodes\n"); 1645 return -EINVAL; 1646 } 1647 1648 for (i = 0; i < num_nodes; i++, nid++) { 1649 unsigned int caps; 1650 unsigned int type; 1651 1652 caps = get_wcaps(hdev, nid); 1653 type = get_wcaps_type(caps); 1654 1655 if (!(caps & AC_WCAP_DIGITAL)) 1656 continue; 1657 1658 switch (type) { 1659 1660 case AC_WID_AUD_OUT: 1661 ret = hdac_hdmi_add_cvt(hdev, nid); 1662 if (ret < 0) 1663 return ret; 1664 break; 1665 1666 case AC_WID_PIN: 1667 ret = hdac_hdmi_add_pin(hdev, nid); 1668 if (ret < 0) 1669 return ret; 1670 break; 1671 } 1672 } 1673 1674 if (!hdmi->num_pin || !hdmi->num_cvt) { 1675 ret = -EIO; 1676 dev_err(&hdev->dev, "Bad pin/cvt setup in %s\n", __func__); 1677 return ret; 1678 } 1679 1680 ret = hdac_hdmi_create_dais(hdev, dais, hdmi, hdmi->num_cvt); 1681 if (ret) { 1682 dev_err(&hdev->dev, "Failed to create dais with err: %d\n", 1683 ret); 1684 return ret; 1685 } 1686 1687 *num_dais = hdmi->num_cvt; 1688 ret = hdac_hdmi_init_dai_map(hdev); 1689 if (ret < 0) 1690 dev_err(&hdev->dev, "Failed to init DAI map with err: %d\n", 1691 ret); 1692 return ret; 1693} 1694 1695static int hdac_hdmi_pin2port(void *aptr, int pin) 1696{ 1697 return pin - 4; /* map NID 0x05 -> port #1 */ 1698} 1699 1700static void hdac_hdmi_eld_notify_cb(void *aptr, int port, int pipe) 1701{ 1702 struct hdac_device *hdev = aptr; 1703 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev); 1704 struct hdac_hdmi_pin *pin; 1705 struct hdac_hdmi_port *hport = NULL; 1706 struct snd_soc_component *component = hdmi->component; 1707 int i; 1708 1709 /* Don't know how this mapping is derived */ 1710 hda_nid_t pin_nid = port + 0x04; 1711 1712 dev_dbg(&hdev->dev, "%s: for pin:%d port=%d\n", __func__, 1713 pin_nid, pipe); 1714 1715 /* 1716 * skip notification during system suspend (but not in runtime PM); 1717 * the state will be updated at resume. Also since the ELD and 1718 * connection states are updated in anyway at the end of the resume, 1719 * we can skip it when received during PM process. 1720 */ 1721 if (snd_power_get_state(component->card->snd_card) != 1722 SNDRV_CTL_POWER_D0) 1723 return; 1724 1725 if (atomic_read(&hdev->in_pm)) 1726 return; 1727 1728 list_for_each_entry(pin, &hdmi->pin_list, head) { 1729 if (pin->nid != pin_nid) 1730 continue; 1731 1732 /* In case of non MST pin, pipe is -1 */ 1733 if (pipe == -1) { 1734 pin->mst_capable = false; 1735 /* if not MST, default is port[0] */ 1736 hport = &pin->ports[0]; 1737 } else { 1738 for (i = 0; i < pin->num_ports; i++) { 1739 pin->mst_capable = true; 1740 if (pin->ports[i].id == pipe) { 1741 hport = &pin->ports[i]; 1742 break; 1743 } 1744 } 1745 } 1746 1747 if (hport) 1748 hdac_hdmi_present_sense(pin, hport); 1749 } 1750 1751} 1752 1753static struct drm_audio_component_audio_ops aops = { 1754 .pin2port = hdac_hdmi_pin2port, 1755 .pin_eld_notify = hdac_hdmi_eld_notify_cb, 1756}; 1757 1758static struct snd_pcm *hdac_hdmi_get_pcm_from_id(struct snd_soc_card *card, 1759 int device) 1760{ 1761 struct snd_soc_pcm_runtime *rtd; 1762 1763 for_each_card_rtds(card, rtd) { 1764 if (rtd->pcm && (rtd->pcm->device == device)) 1765 return rtd->pcm; 1766 } 1767 1768 return NULL; 1769} 1770 1771/* create jack pin kcontrols */ 1772static int create_fill_jack_kcontrols(struct snd_soc_card *card, 1773 struct hdac_device *hdev) 1774{ 1775 struct hdac_hdmi_pin *pin; 1776 struct snd_kcontrol_new *kc; 1777 char *name; 1778 int i = 0, j; 1779 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev); 1780 struct snd_soc_component *component = hdmi->component; 1781 1782 kc = devm_kcalloc(component->dev, hdmi->num_ports, 1783 sizeof(*kc), GFP_KERNEL); 1784 1785 if (!kc) 1786 return -ENOMEM; 1787 1788 list_for_each_entry(pin, &hdmi->pin_list, head) { 1789 for (j = 0; j < pin->num_ports; j++) { 1790 name = devm_kasprintf(component->dev, GFP_KERNEL, 1791 "hif%d-%d Jack", 1792 pin->nid, pin->ports[j].id); 1793 if (!name) 1794 return -ENOMEM; 1795 1796 kc[i].name = devm_kasprintf(component->dev, GFP_KERNEL, 1797 "%s Switch", name); 1798 if (!kc[i].name) 1799 return -ENOMEM; 1800 1801 kc[i].private_value = (unsigned long)name; 1802 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1803 kc[i].access = 0; 1804 kc[i].info = snd_soc_dapm_info_pin_switch; 1805 kc[i].put = snd_soc_dapm_put_pin_switch; 1806 kc[i].get = snd_soc_dapm_get_pin_switch; 1807 i++; 1808 } 1809 } 1810 1811 return snd_soc_add_card_controls(card, kc, i); 1812} 1813 1814int hdac_hdmi_jack_port_init(struct snd_soc_component *component, 1815 struct snd_soc_dapm_context *dapm) 1816{ 1817 struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component); 1818 struct hdac_device *hdev = hdmi->hdev; 1819 struct hdac_hdmi_pin *pin; 1820 struct snd_soc_dapm_widget *widgets; 1821 struct snd_soc_dapm_route *route; 1822 char w_name[NAME_SIZE]; 1823 int i = 0, j, ret; 1824 1825 widgets = devm_kcalloc(dapm->dev, hdmi->num_ports, 1826 sizeof(*widgets), GFP_KERNEL); 1827 1828 if (!widgets) 1829 return -ENOMEM; 1830 1831 route = devm_kcalloc(dapm->dev, hdmi->num_ports, 1832 sizeof(*route), GFP_KERNEL); 1833 if (!route) 1834 return -ENOMEM; 1835 1836 /* create Jack DAPM widget */ 1837 list_for_each_entry(pin, &hdmi->pin_list, head) { 1838 for (j = 0; j < pin->num_ports; j++) { 1839 snprintf(w_name, sizeof(w_name), "hif%d-%d Jack", 1840 pin->nid, pin->ports[j].id); 1841 1842 ret = hdac_hdmi_fill_widget_info(dapm->dev, &widgets[i], 1843 snd_soc_dapm_spk, NULL, 1844 w_name, NULL, NULL, 0, NULL, 0); 1845 if (ret < 0) 1846 return ret; 1847 1848 pin->ports[j].jack_pin = widgets[i].name; 1849 pin->ports[j].dapm = dapm; 1850 1851 /* add to route from Jack widget to output */ 1852 hdac_hdmi_fill_route(&route[i], pin->ports[j].jack_pin, 1853 NULL, pin->ports[j].output_pin, NULL); 1854 1855 i++; 1856 } 1857 } 1858 1859 /* Add Route from Jack widget to the output widget */ 1860 ret = snd_soc_dapm_new_controls(dapm, widgets, hdmi->num_ports); 1861 if (ret < 0) 1862 return ret; 1863 1864 ret = snd_soc_dapm_add_routes(dapm, route, hdmi->num_ports); 1865 if (ret < 0) 1866 return ret; 1867 1868 ret = snd_soc_dapm_new_widgets(dapm->card); 1869 if (ret < 0) 1870 return ret; 1871 1872 /* Add Jack Pin switch Kcontrol */ 1873 ret = create_fill_jack_kcontrols(dapm->card, hdev); 1874 1875 if (ret < 0) 1876 return ret; 1877 1878 /* default set the Jack Pin switch to OFF */ 1879 list_for_each_entry(pin, &hdmi->pin_list, head) { 1880 for (j = 0; j < pin->num_ports; j++) 1881 snd_soc_dapm_disable_pin(pin->ports[j].dapm, 1882 pin->ports[j].jack_pin); 1883 } 1884 1885 return 0; 1886} 1887EXPORT_SYMBOL_GPL(hdac_hdmi_jack_port_init); 1888 1889int hdac_hdmi_jack_init(struct snd_soc_dai *dai, int device, 1890 struct snd_soc_jack *jack) 1891{ 1892 struct snd_soc_component *component = dai->component; 1893 struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component); 1894 struct hdac_device *hdev = hdmi->hdev; 1895 struct hdac_hdmi_pcm *pcm; 1896 struct snd_pcm *snd_pcm; 1897 int err; 1898 1899 /* 1900 * this is a new PCM device, create new pcm and 1901 * add to the pcm list 1902 */ 1903 pcm = devm_kzalloc(&hdev->dev, sizeof(*pcm), GFP_KERNEL); 1904 if (!pcm) 1905 return -ENOMEM; 1906 pcm->pcm_id = device; 1907 pcm->cvt = hdmi->dai_map[dai->id].cvt; 1908 pcm->jack_event = 0; 1909 pcm->jack = jack; 1910 mutex_init(&pcm->lock); 1911 INIT_LIST_HEAD(&pcm->port_list); 1912 snd_pcm = hdac_hdmi_get_pcm_from_id(dai->component->card, device); 1913 if (snd_pcm) { 1914 err = snd_hdac_add_chmap_ctls(snd_pcm, device, &hdmi->chmap); 1915 if (err < 0) { 1916 dev_err(&hdev->dev, 1917 "chmap control add failed with err: %d for pcm: %d\n", 1918 err, device); 1919 return err; 1920 } 1921 } 1922 1923 /* add control for ELD Bytes */ 1924 err = hdac_hdmi_create_eld_ctl(component, pcm); 1925 if (err < 0) { 1926 dev_err(&hdev->dev, 1927 "eld control add failed with err: %d for pcm: %d\n", 1928 err, device); 1929 return err; 1930 } 1931 1932 list_add_tail(&pcm->head, &hdmi->pcm_list); 1933 1934 return 0; 1935} 1936EXPORT_SYMBOL_GPL(hdac_hdmi_jack_init); 1937 1938static void hdac_hdmi_present_sense_all_pins(struct hdac_device *hdev, 1939 struct hdac_hdmi_priv *hdmi, bool detect_pin_caps) 1940{ 1941 int i; 1942 struct hdac_hdmi_pin *pin; 1943 1944 list_for_each_entry(pin, &hdmi->pin_list, head) { 1945 if (detect_pin_caps) { 1946 1947 if (hdac_hdmi_get_port_len(hdev, pin->nid) == 0) 1948 pin->mst_capable = false; 1949 else 1950 pin->mst_capable = true; 1951 } 1952 1953 for (i = 0; i < pin->num_ports; i++) { 1954 if (!pin->mst_capable && i > 0) 1955 continue; 1956 1957 hdac_hdmi_present_sense(pin, &pin->ports[i]); 1958 } 1959 } 1960} 1961 1962static int hdmi_codec_probe(struct snd_soc_component *component) 1963{ 1964 struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component); 1965 struct hdac_device *hdev = hdmi->hdev; 1966 struct snd_soc_dapm_context *dapm = 1967 snd_soc_component_get_dapm(component); 1968 struct hdac_ext_link *hlink; 1969 int ret; 1970 1971 hdmi->component = component; 1972 1973 /* 1974 * hold the ref while we probe, also no need to drop the ref on 1975 * exit, we call pm_runtime_suspend() so that will do for us 1976 */ 1977 hlink = snd_hdac_ext_bus_get_hlink_by_name(hdev->bus, dev_name(&hdev->dev)); 1978 if (!hlink) { 1979 dev_err(&hdev->dev, "hdac link not found\n"); 1980 return -EIO; 1981 } 1982 1983 snd_hdac_ext_bus_link_get(hdev->bus, hlink); 1984 1985 ret = create_fill_widget_route_map(dapm); 1986 if (ret < 0) 1987 return ret; 1988 1989 aops.audio_ptr = hdev; 1990 ret = snd_hdac_acomp_register_notifier(hdev->bus, &aops); 1991 if (ret < 0) { 1992 dev_err(&hdev->dev, "notifier register failed: err: %d\n", ret); 1993 return ret; 1994 } 1995 1996 hdac_hdmi_present_sense_all_pins(hdev, hdmi, true); 1997 /* Imp: Store the card pointer in hda_codec */ 1998 hdmi->card = dapm->card->snd_card; 1999 2000 /* 2001 * Setup a device_link between card device and HDMI codec device. 2002 * The card device is the consumer and the HDMI codec device is 2003 * the supplier. With this setting, we can make sure that the audio 2004 * domain in display power will be always turned on before operating 2005 * on the HDMI audio codec registers. 2006 * Let's use the flag DL_FLAG_AUTOREMOVE_CONSUMER. This can make 2007 * sure the device link is freed when the machine driver is removed. 2008 */ 2009 device_link_add(component->card->dev, &hdev->dev, DL_FLAG_RPM_ACTIVE | 2010 DL_FLAG_AUTOREMOVE_CONSUMER); 2011 /* 2012 * hdac_device core already sets the state to active and calls 2013 * get_noresume. So enable runtime and set the device to suspend. 2014 */ 2015 pm_runtime_enable(&hdev->dev); 2016 pm_runtime_put(&hdev->dev); 2017 pm_runtime_suspend(&hdev->dev); 2018 2019 return 0; 2020} 2021 2022static void hdmi_codec_remove(struct snd_soc_component *component) 2023{ 2024 struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component); 2025 struct hdac_device *hdev = hdmi->hdev; 2026 int ret; 2027 2028 ret = snd_hdac_acomp_register_notifier(hdev->bus, NULL); 2029 if (ret < 0) 2030 dev_err(&hdev->dev, "notifier unregister failed: err: %d\n", 2031 ret); 2032 2033 pm_runtime_disable(&hdev->dev); 2034} 2035 2036#ifdef CONFIG_PM_SLEEP 2037static int hdmi_codec_resume(struct device *dev) 2038{ 2039 struct hdac_device *hdev = dev_to_hdac_dev(dev); 2040 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev); 2041 int ret; 2042 2043 ret = pm_runtime_force_resume(dev); 2044 if (ret < 0) 2045 return ret; 2046 /* 2047 * As the ELD notify callback request is not entertained while the 2048 * device is in suspend state. Need to manually check detection of 2049 * all pins here. pin capablity change is not support, so use the 2050 * already set pin caps. 2051 * 2052 * NOTE: this is safe to call even if the codec doesn't actually resume. 2053 * The pin check involves only with DRM audio component hooks, so it 2054 * works even if the HD-audio side is still dreaming peacefully. 2055 */ 2056 hdac_hdmi_present_sense_all_pins(hdev, hdmi, false); 2057 return 0; 2058} 2059#else 2060#define hdmi_codec_resume NULL 2061#endif 2062 2063static const struct snd_soc_component_driver hdmi_hda_codec = { 2064 .probe = hdmi_codec_probe, 2065 .remove = hdmi_codec_remove, 2066 .use_pmdown_time = 1, 2067 .endianness = 1, 2068}; 2069 2070static void hdac_hdmi_get_chmap(struct hdac_device *hdev, int pcm_idx, 2071 unsigned char *chmap) 2072{ 2073 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev); 2074 struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx); 2075 2076 memcpy(chmap, pcm->chmap, ARRAY_SIZE(pcm->chmap)); 2077} 2078 2079static void hdac_hdmi_set_chmap(struct hdac_device *hdev, int pcm_idx, 2080 unsigned char *chmap, int prepared) 2081{ 2082 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev); 2083 struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx); 2084 struct hdac_hdmi_port *port; 2085 2086 if (!pcm) 2087 return; 2088 2089 if (list_empty(&pcm->port_list)) 2090 return; 2091 2092 mutex_lock(&pcm->lock); 2093 pcm->chmap_set = true; 2094 memcpy(pcm->chmap, chmap, ARRAY_SIZE(pcm->chmap)); 2095 list_for_each_entry(port, &pcm->port_list, head) 2096 if (prepared) 2097 hdac_hdmi_setup_audio_infoframe(hdev, pcm, port); 2098 mutex_unlock(&pcm->lock); 2099} 2100 2101static bool is_hdac_hdmi_pcm_attached(struct hdac_device *hdev, int pcm_idx) 2102{ 2103 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev); 2104 struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx); 2105 2106 if (!pcm) 2107 return false; 2108 2109 if (list_empty(&pcm->port_list)) 2110 return false; 2111 2112 return true; 2113} 2114 2115static int hdac_hdmi_get_spk_alloc(struct hdac_device *hdev, int pcm_idx) 2116{ 2117 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev); 2118 struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx); 2119 struct hdac_hdmi_port *port; 2120 2121 if (!pcm) 2122 return 0; 2123 2124 if (list_empty(&pcm->port_list)) 2125 return 0; 2126 2127 port = list_first_entry(&pcm->port_list, struct hdac_hdmi_port, head); 2128 2129 if (!port || !port->eld.eld_valid) 2130 return 0; 2131 2132 return port->eld.info.spk_alloc; 2133} 2134 2135static struct hdac_hdmi_drv_data intel_glk_drv_data = { 2136 .vendor_nid = INTEL_GLK_VENDOR_NID, 2137}; 2138 2139static struct hdac_hdmi_drv_data intel_drv_data = { 2140 .vendor_nid = INTEL_VENDOR_NID, 2141}; 2142 2143static int hdac_hdmi_dev_probe(struct hdac_device *hdev) 2144{ 2145 struct hdac_hdmi_priv *hdmi_priv; 2146 struct snd_soc_dai_driver *hdmi_dais = NULL; 2147 struct hdac_ext_link *hlink; 2148 int num_dais = 0; 2149 int ret; 2150 struct hdac_driver *hdrv = drv_to_hdac_driver(hdev->dev.driver); 2151 const struct hda_device_id *hdac_id = hdac_get_device_id(hdev, hdrv); 2152 2153 /* hold the ref while we probe */ 2154 hlink = snd_hdac_ext_bus_get_hlink_by_name(hdev->bus, dev_name(&hdev->dev)); 2155 if (!hlink) { 2156 dev_err(&hdev->dev, "hdac link not found\n"); 2157 return -EIO; 2158 } 2159 2160 snd_hdac_ext_bus_link_get(hdev->bus, hlink); 2161 2162 hdmi_priv = devm_kzalloc(&hdev->dev, sizeof(*hdmi_priv), GFP_KERNEL); 2163 if (hdmi_priv == NULL) 2164 return -ENOMEM; 2165 2166 snd_hdac_register_chmap_ops(hdev, &hdmi_priv->chmap); 2167 hdmi_priv->chmap.ops.get_chmap = hdac_hdmi_get_chmap; 2168 hdmi_priv->chmap.ops.set_chmap = hdac_hdmi_set_chmap; 2169 hdmi_priv->chmap.ops.is_pcm_attached = is_hdac_hdmi_pcm_attached; 2170 hdmi_priv->chmap.ops.get_spk_alloc = hdac_hdmi_get_spk_alloc; 2171 hdmi_priv->hdev = hdev; 2172 2173 if (!hdac_id) 2174 return -ENODEV; 2175 2176 if (hdac_id->driver_data) 2177 hdmi_priv->drv_data = 2178 (struct hdac_hdmi_drv_data *)hdac_id->driver_data; 2179 else 2180 hdmi_priv->drv_data = &intel_drv_data; 2181 2182 dev_set_drvdata(&hdev->dev, hdmi_priv); 2183 2184 INIT_LIST_HEAD(&hdmi_priv->pin_list); 2185 INIT_LIST_HEAD(&hdmi_priv->cvt_list); 2186 INIT_LIST_HEAD(&hdmi_priv->pcm_list); 2187 mutex_init(&hdmi_priv->pin_mutex); 2188 2189 /* 2190 * Turned off in the runtime_suspend during the first explicit 2191 * pm_runtime_suspend call. 2192 */ 2193 snd_hdac_display_power(hdev->bus, hdev->addr, true); 2194 2195 ret = hdac_hdmi_parse_and_map_nid(hdev, &hdmi_dais, &num_dais); 2196 if (ret < 0) { 2197 dev_err(&hdev->dev, 2198 "Failed in parse and map nid with err: %d\n", ret); 2199 return ret; 2200 } 2201 snd_hdac_refresh_widgets(hdev); 2202 2203 /* ASoC specific initialization */ 2204 ret = devm_snd_soc_register_component(&hdev->dev, &hdmi_hda_codec, 2205 hdmi_dais, num_dais); 2206 2207 snd_hdac_ext_bus_link_put(hdev->bus, hlink); 2208 2209 return ret; 2210} 2211 2212static void clear_dapm_works(struct hdac_device *hdev) 2213{ 2214 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev); 2215 struct hdac_hdmi_pin *pin; 2216 int i; 2217 2218 list_for_each_entry(pin, &hdmi->pin_list, head) 2219 for (i = 0; i < pin->num_ports; i++) 2220 cancel_work_sync(&pin->ports[i].dapm_work); 2221} 2222 2223static int hdac_hdmi_dev_remove(struct hdac_device *hdev) 2224{ 2225 clear_dapm_works(hdev); 2226 snd_hdac_display_power(hdev->bus, hdev->addr, false); 2227 2228 return 0; 2229} 2230 2231#ifdef CONFIG_PM 2232static int hdac_hdmi_runtime_suspend(struct device *dev) 2233{ 2234 struct hdac_device *hdev = dev_to_hdac_dev(dev); 2235 struct hdac_bus *bus = hdev->bus; 2236 struct hdac_ext_link *hlink; 2237 2238 dev_dbg(dev, "Enter: %s\n", __func__); 2239 2240 /* controller may not have been initialized for the first time */ 2241 if (!bus) 2242 return 0; 2243 2244 /* 2245 * Power down afg. 2246 * codec_read is preferred over codec_write to set the power state. 2247 * This way verb is send to set the power state and response 2248 * is received. So setting power state is ensured without using loop 2249 * to read the state. 2250 */ 2251 snd_hdac_codec_read(hdev, hdev->afg, 0, AC_VERB_SET_POWER_STATE, 2252 AC_PWRST_D3); 2253 2254 hlink = snd_hdac_ext_bus_get_hlink_by_name(bus, dev_name(dev)); 2255 if (!hlink) { 2256 dev_err(dev, "hdac link not found\n"); 2257 return -EIO; 2258 } 2259 2260 snd_hdac_codec_link_down(hdev); 2261 snd_hdac_ext_bus_link_put(bus, hlink); 2262 2263 snd_hdac_display_power(bus, hdev->addr, false); 2264 2265 return 0; 2266} 2267 2268static int hdac_hdmi_runtime_resume(struct device *dev) 2269{ 2270 struct hdac_device *hdev = dev_to_hdac_dev(dev); 2271 struct hdac_bus *bus = hdev->bus; 2272 struct hdac_ext_link *hlink; 2273 2274 dev_dbg(dev, "Enter: %s\n", __func__); 2275 2276 /* controller may not have been initialized for the first time */ 2277 if (!bus) 2278 return 0; 2279 2280 hlink = snd_hdac_ext_bus_get_hlink_by_name(bus, dev_name(dev)); 2281 if (!hlink) { 2282 dev_err(dev, "hdac link not found\n"); 2283 return -EIO; 2284 } 2285 2286 snd_hdac_ext_bus_link_get(bus, hlink); 2287 snd_hdac_codec_link_up(hdev); 2288 2289 snd_hdac_display_power(bus, hdev->addr, true); 2290 2291 hdac_hdmi_skl_enable_all_pins(hdev); 2292 hdac_hdmi_skl_enable_dp12(hdev); 2293 2294 /* Power up afg */ 2295 snd_hdac_codec_read(hdev, hdev->afg, 0, AC_VERB_SET_POWER_STATE, 2296 AC_PWRST_D0); 2297 2298 return 0; 2299} 2300#else 2301#define hdac_hdmi_runtime_suspend NULL 2302#define hdac_hdmi_runtime_resume NULL 2303#endif 2304 2305static const struct dev_pm_ops hdac_hdmi_pm = { 2306 SET_RUNTIME_PM_OPS(hdac_hdmi_runtime_suspend, hdac_hdmi_runtime_resume, NULL) 2307 SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, hdmi_codec_resume) 2308}; 2309 2310static const struct hda_device_id hdmi_list[] = { 2311 HDA_CODEC_EXT_ENTRY(0x80862809, 0x100000, "Skylake HDMI", 0), 2312 HDA_CODEC_EXT_ENTRY(0x8086280a, 0x100000, "Broxton HDMI", 0), 2313 HDA_CODEC_EXT_ENTRY(0x8086280b, 0x100000, "Kabylake HDMI", 0), 2314 HDA_CODEC_EXT_ENTRY(0x8086280c, 0x100000, "Cannonlake HDMI", 2315 &intel_glk_drv_data), 2316 HDA_CODEC_EXT_ENTRY(0x8086280d, 0x100000, "Geminilake HDMI", 2317 &intel_glk_drv_data), 2318 {} 2319}; 2320 2321MODULE_DEVICE_TABLE(hdaudio, hdmi_list); 2322 2323static struct hdac_driver hdmi_driver = { 2324 .driver = { 2325 .name = "HDMI HDA Codec", 2326 .pm = &hdac_hdmi_pm, 2327 }, 2328 .id_table = hdmi_list, 2329 .probe = hdac_hdmi_dev_probe, 2330 .remove = hdac_hdmi_dev_remove, 2331}; 2332 2333static int __init hdmi_init(void) 2334{ 2335 return snd_hda_ext_driver_register(&hdmi_driver); 2336} 2337 2338static void __exit hdmi_exit(void) 2339{ 2340 snd_hda_ext_driver_unregister(&hdmi_driver); 2341} 2342 2343module_init(hdmi_init); 2344module_exit(hdmi_exit); 2345 2346MODULE_LICENSE("GPL v2"); 2347MODULE_DESCRIPTION("HDMI HD codec"); 2348MODULE_AUTHOR("Samreen Nilofer<samreen.nilofer@intel.com>"); 2349MODULE_AUTHOR("Subhransu S. Prusty<subhransu.s.prusty@intel.com>"); 2350