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