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