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