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