1 /* 2 * hdac_hdmi.c - ASoc HDA-HDMI codec driver for Intel platforms 3 * 4 * Copyright (C) 2014-2015 Intel Corp 5 * Author: Samreen Nilofer <samreen.nilofer@intel.com> 6 * Subhransu S. Prusty <subhransu.s.prusty@intel.com> 7 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 8 * 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License as published by 11 * the Free Software Foundation; version 2 of the License. 12 * 13 * This program is distributed in the hope that it will be useful, but 14 * WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 * General Public License for more details. 17 * 18 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 19 */ 20 #include <linux/init.h> 21 #include <linux/delay.h> 22 #include <linux/module.h> 23 #include <linux/pm_runtime.h> 24 #include <linux/hdmi.h> 25 #include <drm/drm_edid.h> 26 #include <sound/pcm_params.h> 27 #include <sound/jack.h> 28 #include <sound/soc.h> 29 #include <sound/hdaudio_ext.h> 30 #include <sound/hda_i915.h> 31 #include <sound/pcm_drm_eld.h> 32 #include <sound/hda_chmap.h> 33 #include "../../hda/local.h" 34 #include "hdac_hdmi.h" 35 36 #define NAME_SIZE 32 37 38 #define AMP_OUT_MUTE 0xb080 39 #define AMP_OUT_UNMUTE 0xb000 40 #define PIN_OUT (AC_PINCTL_OUT_EN) 41 42 #define HDA_MAX_CONNECTIONS 32 43 44 #define HDA_MAX_CVTS 3 45 #define HDA_MAX_PORTS 3 46 47 #define ELD_MAX_SIZE 256 48 #define ELD_FIXED_BYTES 20 49 50 #define ELD_VER_CEA_861D 2 51 #define ELD_VER_PARTIAL 31 52 #define ELD_MAX_MNL 16 53 54 struct hdac_hdmi_cvt_params { 55 unsigned int channels_min; 56 unsigned int channels_max; 57 u32 rates; 58 u64 formats; 59 unsigned int maxbps; 60 }; 61 62 struct hdac_hdmi_cvt { 63 struct list_head head; 64 hda_nid_t nid; 65 const char *name; 66 struct hdac_hdmi_cvt_params params; 67 }; 68 69 /* Currently only spk_alloc, more to be added */ 70 struct hdac_hdmi_parsed_eld { 71 u8 spk_alloc; 72 }; 73 74 struct hdac_hdmi_eld { 75 bool monitor_present; 76 bool eld_valid; 77 int eld_size; 78 char eld_buffer[ELD_MAX_SIZE]; 79 struct hdac_hdmi_parsed_eld info; 80 }; 81 82 struct hdac_hdmi_pin { 83 struct list_head head; 84 hda_nid_t nid; 85 bool mst_capable; 86 struct hdac_hdmi_port *ports; 87 int num_ports; 88 struct hdac_ext_device *edev; 89 }; 90 91 struct hdac_hdmi_port { 92 struct list_head head; 93 int id; 94 struct hdac_hdmi_pin *pin; 95 int num_mux_nids; 96 hda_nid_t mux_nids[HDA_MAX_CONNECTIONS]; 97 struct hdac_hdmi_eld eld; 98 const char *jack_pin; 99 struct snd_soc_dapm_context *dapm; 100 const char *output_pin; 101 }; 102 103 struct hdac_hdmi_pcm { 104 struct list_head head; 105 int pcm_id; 106 struct list_head port_list; 107 struct hdac_hdmi_cvt *cvt; 108 struct snd_soc_jack *jack; 109 int stream_tag; 110 int channels; 111 int format; 112 bool chmap_set; 113 unsigned char chmap[8]; /* ALSA API channel-map */ 114 struct mutex lock; 115 int jack_event; 116 }; 117 118 struct hdac_hdmi_dai_port_map { 119 int dai_id; 120 struct hdac_hdmi_port *port; 121 struct hdac_hdmi_cvt *cvt; 122 }; 123 124 struct hdac_hdmi_drv_data { 125 unsigned int vendor_nid; 126 }; 127 128 struct hdac_hdmi_priv { 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 }; 140 141 static struct hdac_hdmi_pcm * 142 hdac_hdmi_get_pcm_from_cvt(struct hdac_hdmi_priv *hdmi, 143 struct hdac_hdmi_cvt *cvt) 144 { 145 struct hdac_hdmi_pcm *pcm = NULL; 146 147 list_for_each_entry(pcm, &hdmi->pcm_list, head) { 148 if (pcm->cvt == cvt) 149 break; 150 } 151 152 return pcm; 153 } 154 155 static void hdac_hdmi_jack_report(struct hdac_hdmi_pcm *pcm, 156 struct hdac_hdmi_port *port, bool is_connect) 157 { 158 struct hdac_ext_device *edev = port->pin->edev; 159 160 if (is_connect) 161 snd_soc_dapm_enable_pin(port->dapm, port->jack_pin); 162 else 163 snd_soc_dapm_disable_pin(port->dapm, port->jack_pin); 164 165 if (is_connect) { 166 /* 167 * Report Jack connect event when a device is connected 168 * for the first time where same PCM is attached to multiple 169 * ports. 170 */ 171 if (pcm->jack_event == 0) { 172 dev_dbg(&edev->hdac.dev, 173 "jack report for pcm=%d\n", 174 pcm->pcm_id); 175 snd_soc_jack_report(pcm->jack, SND_JACK_AVOUT, 176 SND_JACK_AVOUT); 177 } 178 pcm->jack_event++; 179 } else { 180 /* 181 * Report Jack disconnect event when a device is disconnected 182 * is the only last connected device when same PCM is attached 183 * to multiple ports. 184 */ 185 if (pcm->jack_event == 1) 186 snd_soc_jack_report(pcm->jack, 0, SND_JACK_AVOUT); 187 if (pcm->jack_event > 0) 188 pcm->jack_event--; 189 } 190 191 snd_soc_dapm_sync(port->dapm); 192 } 193 194 /* MST supported verbs */ 195 /* 196 * Get the no devices that can be connected to a port on the Pin widget. 197 */ 198 static int hdac_hdmi_get_port_len(struct hdac_ext_device *hdac, hda_nid_t nid) 199 { 200 unsigned int caps; 201 unsigned int type, param; 202 203 caps = get_wcaps(&hdac->hdac, nid); 204 type = get_wcaps_type(caps); 205 206 if (!(caps & AC_WCAP_DIGITAL) || (type != AC_WID_PIN)) 207 return 0; 208 209 param = snd_hdac_read_parm_uncached(&hdac->hdac, nid, 210 AC_PAR_DEVLIST_LEN); 211 if (param == -1) 212 return param; 213 214 return param & AC_DEV_LIST_LEN_MASK; 215 } 216 217 /* 218 * Get the port entry select on the pin. Return the port entry 219 * id selected on the pin. Return 0 means the first port entry 220 * is selected or MST is not supported. 221 */ 222 static int hdac_hdmi_port_select_get(struct hdac_ext_device *hdac, 223 struct hdac_hdmi_port *port) 224 { 225 return snd_hdac_codec_read(&hdac->hdac, port->pin->nid, 226 0, AC_VERB_GET_DEVICE_SEL, 0); 227 } 228 229 /* 230 * Sets the selected port entry for the configuring Pin widget verb. 231 * returns error if port set is not equal to port get otherwise success 232 */ 233 static int hdac_hdmi_port_select_set(struct hdac_ext_device *hdac, 234 struct hdac_hdmi_port *port) 235 { 236 int num_ports; 237 238 if (!port->pin->mst_capable) 239 return 0; 240 241 /* AC_PAR_DEVLIST_LEN is 0 based. */ 242 num_ports = hdac_hdmi_get_port_len(hdac, port->pin->nid); 243 244 if (num_ports < 0) 245 return -EIO; 246 /* 247 * Device List Length is a 0 based integer value indicating the 248 * number of sink device that a MST Pin Widget can support. 249 */ 250 if (num_ports + 1 < port->id) 251 return 0; 252 253 snd_hdac_codec_write(&hdac->hdac, port->pin->nid, 0, 254 AC_VERB_SET_DEVICE_SEL, port->id); 255 256 if (port->id != hdac_hdmi_port_select_get(hdac, port)) 257 return -EIO; 258 259 dev_dbg(&hdac->hdac.dev, "Selected the port=%d\n", port->id); 260 261 return 0; 262 } 263 264 static struct hdac_hdmi_pcm *get_hdmi_pcm_from_id(struct hdac_hdmi_priv *hdmi, 265 int pcm_idx) 266 { 267 struct hdac_hdmi_pcm *pcm; 268 269 list_for_each_entry(pcm, &hdmi->pcm_list, head) { 270 if (pcm->pcm_id == pcm_idx) 271 return pcm; 272 } 273 274 return NULL; 275 } 276 277 static inline struct hdac_ext_device *to_hda_ext_device(struct device *dev) 278 { 279 struct hdac_device *hdac = dev_to_hdac_dev(dev); 280 281 return to_ehdac_device(hdac); 282 } 283 284 static unsigned int sad_format(const u8 *sad) 285 { 286 return ((sad[0] >> 0x3) & 0x1f); 287 } 288 289 static unsigned int sad_sample_bits_lpcm(const u8 *sad) 290 { 291 return (sad[2] & 7); 292 } 293 294 static int hdac_hdmi_eld_limit_formats(struct snd_pcm_runtime *runtime, 295 void *eld) 296 { 297 u64 formats = SNDRV_PCM_FMTBIT_S16; 298 int i; 299 const u8 *sad, *eld_buf = eld; 300 301 sad = drm_eld_sad(eld_buf); 302 if (!sad) 303 goto format_constraint; 304 305 for (i = drm_eld_sad_count(eld_buf); i > 0; i--, sad += 3) { 306 if (sad_format(sad) == 1) { /* AUDIO_CODING_TYPE_LPCM */ 307 308 /* 309 * the controller support 20 and 24 bits in 32 bit 310 * container so we set S32 311 */ 312 if (sad_sample_bits_lpcm(sad) & 0x6) 313 formats |= SNDRV_PCM_FMTBIT_S32; 314 } 315 } 316 317 format_constraint: 318 return snd_pcm_hw_constraint_mask64(runtime, SNDRV_PCM_HW_PARAM_FORMAT, 319 formats); 320 321 } 322 323 static void 324 hdac_hdmi_set_dip_index(struct hdac_ext_device *hdac, hda_nid_t pin_nid, 325 int packet_index, int byte_index) 326 { 327 int val; 328 329 val = (packet_index << 5) | (byte_index & 0x1f); 330 331 snd_hdac_codec_write(&hdac->hdac, pin_nid, 0, 332 AC_VERB_SET_HDMI_DIP_INDEX, val); 333 } 334 335 struct dp_audio_infoframe { 336 u8 type; /* 0x84 */ 337 u8 len; /* 0x1b */ 338 u8 ver; /* 0x11 << 2 */ 339 340 u8 CC02_CT47; /* match with HDMI infoframe from this on */ 341 u8 SS01_SF24; 342 u8 CXT04; 343 u8 CA; 344 u8 LFEPBL01_LSV36_DM_INH7; 345 }; 346 347 static int hdac_hdmi_setup_audio_infoframe(struct hdac_ext_device *hdac, 348 struct hdac_hdmi_pcm *pcm, struct hdac_hdmi_port *port) 349 { 350 uint8_t buffer[HDMI_INFOFRAME_HEADER_SIZE + HDMI_AUDIO_INFOFRAME_SIZE]; 351 struct hdmi_audio_infoframe frame; 352 struct hdac_hdmi_pin *pin = port->pin; 353 struct dp_audio_infoframe dp_ai; 354 struct hdac_hdmi_priv *hdmi = hdac->private_data; 355 struct hdac_hdmi_cvt *cvt = pcm->cvt; 356 u8 *dip; 357 int ret; 358 int i; 359 const u8 *eld_buf; 360 u8 conn_type; 361 int channels, ca; 362 363 ca = snd_hdac_channel_allocation(&hdac->hdac, port->eld.info.spk_alloc, 364 pcm->channels, pcm->chmap_set, true, pcm->chmap); 365 366 channels = snd_hdac_get_active_channels(ca); 367 hdmi->chmap.ops.set_channel_count(&hdac->hdac, cvt->nid, channels); 368 369 snd_hdac_setup_channel_mapping(&hdmi->chmap, pin->nid, false, ca, 370 pcm->channels, pcm->chmap, pcm->chmap_set); 371 372 eld_buf = port->eld.eld_buffer; 373 conn_type = drm_eld_get_conn_type(eld_buf); 374 375 switch (conn_type) { 376 case DRM_ELD_CONN_TYPE_HDMI: 377 hdmi_audio_infoframe_init(&frame); 378 379 frame.channels = channels; 380 frame.channel_allocation = ca; 381 382 ret = hdmi_audio_infoframe_pack(&frame, buffer, sizeof(buffer)); 383 if (ret < 0) 384 return ret; 385 386 break; 387 388 case DRM_ELD_CONN_TYPE_DP: 389 memset(&dp_ai, 0, sizeof(dp_ai)); 390 dp_ai.type = 0x84; 391 dp_ai.len = 0x1b; 392 dp_ai.ver = 0x11 << 2; 393 dp_ai.CC02_CT47 = channels - 1; 394 dp_ai.CA = ca; 395 396 dip = (u8 *)&dp_ai; 397 break; 398 399 default: 400 dev_err(&hdac->hdac.dev, "Invalid connection type: %d\n", 401 conn_type); 402 return -EIO; 403 } 404 405 /* stop infoframe transmission */ 406 hdac_hdmi_set_dip_index(hdac, pin->nid, 0x0, 0x0); 407 snd_hdac_codec_write(&hdac->hdac, pin->nid, 0, 408 AC_VERB_SET_HDMI_DIP_XMIT, AC_DIPXMIT_DISABLE); 409 410 411 /* Fill infoframe. Index auto-incremented */ 412 hdac_hdmi_set_dip_index(hdac, pin->nid, 0x0, 0x0); 413 if (conn_type == DRM_ELD_CONN_TYPE_HDMI) { 414 for (i = 0; i < sizeof(buffer); i++) 415 snd_hdac_codec_write(&hdac->hdac, pin->nid, 0, 416 AC_VERB_SET_HDMI_DIP_DATA, buffer[i]); 417 } else { 418 for (i = 0; i < sizeof(dp_ai); i++) 419 snd_hdac_codec_write(&hdac->hdac, pin->nid, 0, 420 AC_VERB_SET_HDMI_DIP_DATA, dip[i]); 421 } 422 423 /* Start infoframe */ 424 hdac_hdmi_set_dip_index(hdac, pin->nid, 0x0, 0x0); 425 snd_hdac_codec_write(&hdac->hdac, pin->nid, 0, 426 AC_VERB_SET_HDMI_DIP_XMIT, AC_DIPXMIT_BEST); 427 428 return 0; 429 } 430 431 static int hdac_hdmi_set_tdm_slot(struct snd_soc_dai *dai, 432 unsigned int tx_mask, unsigned int rx_mask, 433 int slots, int slot_width) 434 { 435 struct hdac_ext_device *edev = snd_soc_dai_get_drvdata(dai); 436 struct hdac_hdmi_priv *hdmi = edev->private_data; 437 struct hdac_hdmi_dai_port_map *dai_map; 438 struct hdac_hdmi_pcm *pcm; 439 440 dev_dbg(&edev->hdac.dev, "%s: strm_tag: %d\n", __func__, tx_mask); 441 442 dai_map = &hdmi->dai_map[dai->id]; 443 444 pcm = hdac_hdmi_get_pcm_from_cvt(hdmi, dai_map->cvt); 445 446 if (pcm) 447 pcm->stream_tag = (tx_mask << 4); 448 449 return 0; 450 } 451 452 static int hdac_hdmi_set_hw_params(struct snd_pcm_substream *substream, 453 struct snd_pcm_hw_params *hparams, struct snd_soc_dai *dai) 454 { 455 struct hdac_ext_device *hdac = snd_soc_dai_get_drvdata(dai); 456 struct hdac_hdmi_priv *hdmi = hdac->private_data; 457 struct hdac_hdmi_dai_port_map *dai_map; 458 struct hdac_hdmi_port *port; 459 struct hdac_hdmi_pcm *pcm; 460 int format; 461 462 dai_map = &hdmi->dai_map[dai->id]; 463 port = dai_map->port; 464 465 if (!port) 466 return -ENODEV; 467 468 if ((!port->eld.monitor_present) || (!port->eld.eld_valid)) { 469 dev_err(&hdac->hdac.dev, 470 "device is not configured for this pin:port%d:%d\n", 471 port->pin->nid, port->id); 472 return -ENODEV; 473 } 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_ext_device *hdac, 490 struct hdac_hdmi_pin *pin, 491 struct hdac_hdmi_port *port) 492 { 493 if (!(get_wcaps(&hdac->hdac, pin->nid) & AC_WCAP_CONN_LIST)) { 494 dev_warn(&hdac->hdac.dev, 495 "HDMI: pin %d wcaps %#x does not support connection list\n", 496 pin->nid, get_wcaps(&hdac->hdac, pin->nid)); 497 return -EINVAL; 498 } 499 500 if (hdac_hdmi_port_select_set(hdac, port) < 0) 501 return -EIO; 502 503 port->num_mux_nids = snd_hdac_get_connections(&hdac->hdac, pin->nid, 504 port->mux_nids, HDA_MAX_CONNECTIONS); 505 if (port->num_mux_nids == 0) 506 dev_warn(&hdac->hdac.dev, 507 "No connections found for pin:port %d:%d\n", 508 pin->nid, port->id); 509 510 dev_dbg(&hdac->hdac.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_ext_device *edev, 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 = NULL; 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(edev, 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 * This tries to get a valid pin and set the HW constraints based on the 562 * ELD. Even if a valid pin is not found return success so that device open 563 * doesn't fail. 564 */ 565 static int hdac_hdmi_pcm_open(struct snd_pcm_substream *substream, 566 struct snd_soc_dai *dai) 567 { 568 struct hdac_ext_device *hdac = snd_soc_dai_get_drvdata(dai); 569 struct hdac_hdmi_priv *hdmi = hdac->private_data; 570 struct hdac_hdmi_dai_port_map *dai_map; 571 struct hdac_hdmi_cvt *cvt; 572 struct hdac_hdmi_port *port; 573 int ret; 574 575 dai_map = &hdmi->dai_map[dai->id]; 576 577 cvt = dai_map->cvt; 578 port = hdac_hdmi_get_port_from_cvt(hdac, hdmi, cvt); 579 580 /* 581 * To make PA and other userland happy. 582 * userland scans devices so returning error does not help. 583 */ 584 if (!port) 585 return 0; 586 if ((!port->eld.monitor_present) || 587 (!port->eld.eld_valid)) { 588 589 dev_warn(&hdac->hdac.dev, 590 "Failed: present?:%d ELD valid?:%d pin:port: %d:%d\n", 591 port->eld.monitor_present, port->eld.eld_valid, 592 port->pin->nid, port->id); 593 594 return 0; 595 } 596 597 dai_map->port = port; 598 599 ret = hdac_hdmi_eld_limit_formats(substream->runtime, 600 port->eld.eld_buffer); 601 if (ret < 0) 602 return ret; 603 604 return snd_pcm_hw_constraint_eld(substream->runtime, 605 port->eld.eld_buffer); 606 } 607 608 static void hdac_hdmi_pcm_close(struct snd_pcm_substream *substream, 609 struct snd_soc_dai *dai) 610 { 611 struct hdac_ext_device *hdac = snd_soc_dai_get_drvdata(dai); 612 struct hdac_hdmi_priv *hdmi = hdac->private_data; 613 struct hdac_hdmi_dai_port_map *dai_map; 614 struct hdac_hdmi_pcm *pcm; 615 616 dai_map = &hdmi->dai_map[dai->id]; 617 618 pcm = hdac_hdmi_get_pcm_from_cvt(hdmi, dai_map->cvt); 619 620 if (pcm) { 621 mutex_lock(&pcm->lock); 622 pcm->chmap_set = false; 623 memset(pcm->chmap, 0, sizeof(pcm->chmap)); 624 pcm->channels = 0; 625 mutex_unlock(&pcm->lock); 626 } 627 628 if (dai_map->port) 629 dai_map->port = NULL; 630 } 631 632 static int 633 hdac_hdmi_query_cvt_params(struct hdac_device *hdac, struct hdac_hdmi_cvt *cvt) 634 { 635 unsigned int chans; 636 struct hdac_ext_device *edev = to_ehdac_device(hdac); 637 struct hdac_hdmi_priv *hdmi = edev->private_data; 638 int err; 639 640 chans = get_wcaps(hdac, cvt->nid); 641 chans = get_wcaps_channels(chans); 642 643 cvt->params.channels_min = 2; 644 645 cvt->params.channels_max = chans; 646 if (chans > hdmi->chmap.channels_max) 647 hdmi->chmap.channels_max = chans; 648 649 err = snd_hdac_query_supported_pcm(hdac, cvt->nid, 650 &cvt->params.rates, 651 &cvt->params.formats, 652 &cvt->params.maxbps); 653 if (err < 0) 654 dev_err(&hdac->dev, 655 "Failed to query pcm params for nid %d: %d\n", 656 cvt->nid, err); 657 658 return err; 659 } 660 661 static int hdac_hdmi_fill_widget_info(struct device *dev, 662 struct snd_soc_dapm_widget *w, enum snd_soc_dapm_type id, 663 void *priv, const char *wname, const char *stream, 664 struct snd_kcontrol_new *wc, int numkc, 665 int (*event)(struct snd_soc_dapm_widget *, 666 struct snd_kcontrol *, int), unsigned short event_flags) 667 { 668 w->id = id; 669 w->name = devm_kstrdup(dev, wname, GFP_KERNEL); 670 if (!w->name) 671 return -ENOMEM; 672 673 w->sname = stream; 674 w->reg = SND_SOC_NOPM; 675 w->shift = 0; 676 w->kcontrol_news = wc; 677 w->num_kcontrols = numkc; 678 w->priv = priv; 679 w->event = event; 680 w->event_flags = event_flags; 681 682 return 0; 683 } 684 685 static void hdac_hdmi_fill_route(struct snd_soc_dapm_route *route, 686 const char *sink, const char *control, const char *src, 687 int (*handler)(struct snd_soc_dapm_widget *src, 688 struct snd_soc_dapm_widget *sink)) 689 { 690 route->sink = sink; 691 route->source = src; 692 route->control = control; 693 route->connected = handler; 694 } 695 696 static struct hdac_hdmi_pcm *hdac_hdmi_get_pcm(struct hdac_ext_device *edev, 697 struct hdac_hdmi_port *port) 698 { 699 struct hdac_hdmi_priv *hdmi = edev->private_data; 700 struct hdac_hdmi_pcm *pcm = NULL; 701 struct hdac_hdmi_port *p; 702 703 list_for_each_entry(pcm, &hdmi->pcm_list, head) { 704 if (list_empty(&pcm->port_list)) 705 continue; 706 707 list_for_each_entry(p, &pcm->port_list, head) { 708 if (p->id == port->id && port->pin == p->pin) 709 return pcm; 710 } 711 } 712 713 return NULL; 714 } 715 716 static void hdac_hdmi_set_power_state(struct hdac_ext_device *edev, 717 hda_nid_t nid, unsigned int pwr_state) 718 { 719 if (get_wcaps(&edev->hdac, nid) & AC_WCAP_POWER) { 720 if (!snd_hdac_check_power_state(&edev->hdac, nid, pwr_state)) 721 snd_hdac_codec_write(&edev->hdac, nid, 0, 722 AC_VERB_SET_POWER_STATE, pwr_state); 723 } 724 } 725 726 static void hdac_hdmi_set_amp(struct hdac_ext_device *edev, 727 hda_nid_t nid, int val) 728 { 729 if (get_wcaps(&edev->hdac, nid) & AC_WCAP_OUT_AMP) 730 snd_hdac_codec_write(&edev->hdac, nid, 0, 731 AC_VERB_SET_AMP_GAIN_MUTE, val); 732 } 733 734 735 static int hdac_hdmi_pin_output_widget_event(struct snd_soc_dapm_widget *w, 736 struct snd_kcontrol *kc, int event) 737 { 738 struct hdac_hdmi_port *port = w->priv; 739 struct hdac_ext_device *edev = to_hda_ext_device(w->dapm->dev); 740 struct hdac_hdmi_pcm *pcm; 741 742 dev_dbg(&edev->hdac.dev, "%s: widget: %s event: %x\n", 743 __func__, w->name, event); 744 745 pcm = hdac_hdmi_get_pcm(edev, port); 746 if (!pcm) 747 return -EIO; 748 749 /* set the device if pin is mst_capable */ 750 if (hdac_hdmi_port_select_set(edev, port) < 0) 751 return -EIO; 752 753 switch (event) { 754 case SND_SOC_DAPM_PRE_PMU: 755 hdac_hdmi_set_power_state(edev, port->pin->nid, AC_PWRST_D0); 756 757 /* Enable out path for this pin widget */ 758 snd_hdac_codec_write(&edev->hdac, port->pin->nid, 0, 759 AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT); 760 761 hdac_hdmi_set_amp(edev, port->pin->nid, AMP_OUT_UNMUTE); 762 763 return hdac_hdmi_setup_audio_infoframe(edev, pcm, port); 764 765 case SND_SOC_DAPM_POST_PMD: 766 hdac_hdmi_set_amp(edev, port->pin->nid, AMP_OUT_MUTE); 767 768 /* Disable out path for this pin widget */ 769 snd_hdac_codec_write(&edev->hdac, port->pin->nid, 0, 770 AC_VERB_SET_PIN_WIDGET_CONTROL, 0); 771 772 hdac_hdmi_set_power_state(edev, port->pin->nid, AC_PWRST_D3); 773 break; 774 775 } 776 777 return 0; 778 } 779 780 static int hdac_hdmi_cvt_output_widget_event(struct snd_soc_dapm_widget *w, 781 struct snd_kcontrol *kc, int event) 782 { 783 struct hdac_hdmi_cvt *cvt = w->priv; 784 struct hdac_ext_device *edev = to_hda_ext_device(w->dapm->dev); 785 struct hdac_hdmi_priv *hdmi = edev->private_data; 786 struct hdac_hdmi_pcm *pcm; 787 788 dev_dbg(&edev->hdac.dev, "%s: widget: %s event: %x\n", 789 __func__, w->name, event); 790 791 pcm = hdac_hdmi_get_pcm_from_cvt(hdmi, cvt); 792 if (!pcm) 793 return -EIO; 794 795 switch (event) { 796 case SND_SOC_DAPM_PRE_PMU: 797 hdac_hdmi_set_power_state(edev, cvt->nid, AC_PWRST_D0); 798 799 /* Enable transmission */ 800 snd_hdac_codec_write(&edev->hdac, cvt->nid, 0, 801 AC_VERB_SET_DIGI_CONVERT_1, 1); 802 803 /* Category Code (CC) to zero */ 804 snd_hdac_codec_write(&edev->hdac, cvt->nid, 0, 805 AC_VERB_SET_DIGI_CONVERT_2, 0); 806 807 snd_hdac_codec_write(&edev->hdac, cvt->nid, 0, 808 AC_VERB_SET_CHANNEL_STREAMID, pcm->stream_tag); 809 snd_hdac_codec_write(&edev->hdac, cvt->nid, 0, 810 AC_VERB_SET_STREAM_FORMAT, pcm->format); 811 break; 812 813 case SND_SOC_DAPM_POST_PMD: 814 snd_hdac_codec_write(&edev->hdac, cvt->nid, 0, 815 AC_VERB_SET_CHANNEL_STREAMID, 0); 816 snd_hdac_codec_write(&edev->hdac, cvt->nid, 0, 817 AC_VERB_SET_STREAM_FORMAT, 0); 818 819 hdac_hdmi_set_power_state(edev, cvt->nid, AC_PWRST_D3); 820 break; 821 822 } 823 824 return 0; 825 } 826 827 static int hdac_hdmi_pin_mux_widget_event(struct snd_soc_dapm_widget *w, 828 struct snd_kcontrol *kc, int event) 829 { 830 struct hdac_hdmi_port *port = w->priv; 831 struct hdac_ext_device *edev = to_hda_ext_device(w->dapm->dev); 832 int mux_idx; 833 834 dev_dbg(&edev->hdac.dev, "%s: widget: %s event: %x\n", 835 __func__, w->name, event); 836 837 if (!kc) 838 kc = w->kcontrols[0]; 839 840 mux_idx = dapm_kcontrol_get_value(kc); 841 842 /* set the device if pin is mst_capable */ 843 if (hdac_hdmi_port_select_set(edev, port) < 0) 844 return -EIO; 845 846 if (mux_idx > 0) { 847 snd_hdac_codec_write(&edev->hdac, port->pin->nid, 0, 848 AC_VERB_SET_CONNECT_SEL, (mux_idx - 1)); 849 } 850 851 return 0; 852 } 853 854 /* 855 * Based on user selection, map the PINs with the PCMs. 856 */ 857 static int hdac_hdmi_set_pin_port_mux(struct snd_kcontrol *kcontrol, 858 struct snd_ctl_elem_value *ucontrol) 859 { 860 int ret; 861 struct hdac_hdmi_port *p, *p_next; 862 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; 863 struct snd_soc_dapm_widget *w = snd_soc_dapm_kcontrol_widget(kcontrol); 864 struct snd_soc_dapm_context *dapm = w->dapm; 865 struct hdac_hdmi_port *port = w->priv; 866 struct hdac_ext_device *edev = to_hda_ext_device(dapm->dev); 867 struct hdac_hdmi_priv *hdmi = edev->private_data; 868 struct hdac_hdmi_pcm *pcm = NULL; 869 const char *cvt_name = e->texts[ucontrol->value.enumerated.item[0]]; 870 871 ret = snd_soc_dapm_put_enum_double(kcontrol, ucontrol); 872 if (ret < 0) 873 return ret; 874 875 if (port == NULL) 876 return -EINVAL; 877 878 mutex_lock(&hdmi->pin_mutex); 879 list_for_each_entry(pcm, &hdmi->pcm_list, head) { 880 if (list_empty(&pcm->port_list)) 881 continue; 882 883 list_for_each_entry_safe(p, p_next, &pcm->port_list, head) { 884 if (p == port && p->id == port->id && 885 p->pin == port->pin) { 886 hdac_hdmi_jack_report(pcm, port, false); 887 list_del(&p->head); 888 } 889 } 890 } 891 892 /* 893 * Jack status is not reported during device probe as the 894 * PCMs are not registered by then. So report it here. 895 */ 896 list_for_each_entry(pcm, &hdmi->pcm_list, head) { 897 if (!strcmp(cvt_name, pcm->cvt->name)) { 898 list_add_tail(&port->head, &pcm->port_list); 899 if (port->eld.monitor_present && port->eld.eld_valid) { 900 hdac_hdmi_jack_report(pcm, port, true); 901 mutex_unlock(&hdmi->pin_mutex); 902 return ret; 903 } 904 } 905 } 906 mutex_unlock(&hdmi->pin_mutex); 907 908 return ret; 909 } 910 911 /* 912 * Ideally the Mux inputs should be based on the num_muxs enumerated, but 913 * the display driver seem to be programming the connection list for the pin 914 * widget runtime. 915 * 916 * So programming all the possible inputs for the mux, the user has to take 917 * care of selecting the right one and leaving all other inputs selected to 918 * "NONE" 919 */ 920 static int hdac_hdmi_create_pin_port_muxs(struct hdac_ext_device *edev, 921 struct hdac_hdmi_port *port, 922 struct snd_soc_dapm_widget *widget, 923 const char *widget_name) 924 { 925 struct hdac_hdmi_priv *hdmi = edev->private_data; 926 struct hdac_hdmi_pin *pin = port->pin; 927 struct snd_kcontrol_new *kc; 928 struct hdac_hdmi_cvt *cvt; 929 struct soc_enum *se; 930 char kc_name[NAME_SIZE]; 931 char mux_items[NAME_SIZE]; 932 /* To hold inputs to the Pin mux */ 933 char *items[HDA_MAX_CONNECTIONS]; 934 int i = 0; 935 int num_items = hdmi->num_cvt + 1; 936 937 kc = devm_kzalloc(&edev->hdac.dev, sizeof(*kc), GFP_KERNEL); 938 if (!kc) 939 return -ENOMEM; 940 941 se = devm_kzalloc(&edev->hdac.dev, sizeof(*se), GFP_KERNEL); 942 if (!se) 943 return -ENOMEM; 944 945 snprintf(kc_name, NAME_SIZE, "Pin %d port %d Input", 946 pin->nid, port->id); 947 kc->name = devm_kstrdup(&edev->hdac.dev, kc_name, GFP_KERNEL); 948 if (!kc->name) 949 return -ENOMEM; 950 951 kc->private_value = (long)se; 952 kc->iface = SNDRV_CTL_ELEM_IFACE_MIXER; 953 kc->access = 0; 954 kc->info = snd_soc_info_enum_double; 955 kc->put = hdac_hdmi_set_pin_port_mux; 956 kc->get = snd_soc_dapm_get_enum_double; 957 958 se->reg = SND_SOC_NOPM; 959 960 /* enum texts: ["NONE", "cvt #", "cvt #", ...] */ 961 se->items = num_items; 962 se->mask = roundup_pow_of_two(se->items) - 1; 963 964 sprintf(mux_items, "NONE"); 965 items[i] = devm_kstrdup(&edev->hdac.dev, mux_items, GFP_KERNEL); 966 if (!items[i]) 967 return -ENOMEM; 968 969 list_for_each_entry(cvt, &hdmi->cvt_list, head) { 970 i++; 971 sprintf(mux_items, "cvt %d", cvt->nid); 972 items[i] = devm_kstrdup(&edev->hdac.dev, mux_items, GFP_KERNEL); 973 if (!items[i]) 974 return -ENOMEM; 975 } 976 977 se->texts = devm_kmemdup(&edev->hdac.dev, items, 978 (num_items * sizeof(char *)), GFP_KERNEL); 979 if (!se->texts) 980 return -ENOMEM; 981 982 return hdac_hdmi_fill_widget_info(&edev->hdac.dev, widget, 983 snd_soc_dapm_mux, port, widget_name, NULL, kc, 1, 984 hdac_hdmi_pin_mux_widget_event, 985 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_REG); 986 } 987 988 /* Add cvt <- input <- mux route map */ 989 static void hdac_hdmi_add_pinmux_cvt_route(struct hdac_ext_device *edev, 990 struct snd_soc_dapm_widget *widgets, 991 struct snd_soc_dapm_route *route, int rindex) 992 { 993 struct hdac_hdmi_priv *hdmi = edev->private_data; 994 const struct snd_kcontrol_new *kc; 995 struct soc_enum *se; 996 int mux_index = hdmi->num_cvt + hdmi->num_ports; 997 int i, j; 998 999 for (i = 0; i < hdmi->num_ports; i++) { 1000 kc = widgets[mux_index].kcontrol_news; 1001 se = (struct soc_enum *)kc->private_value; 1002 for (j = 0; j < hdmi->num_cvt; j++) { 1003 hdac_hdmi_fill_route(&route[rindex], 1004 widgets[mux_index].name, 1005 se->texts[j + 1], 1006 widgets[j].name, NULL); 1007 1008 rindex++; 1009 } 1010 1011 mux_index++; 1012 } 1013 } 1014 1015 /* 1016 * Widgets are added in the below sequence 1017 * Converter widgets for num converters enumerated 1018 * Pin-port widgets for num ports for Pins enumerated 1019 * Pin-port mux widgets to represent connenction list of pin widget 1020 * 1021 * For each port, one Mux and One output widget is added 1022 * Total widgets elements = num_cvt + (num_ports * 2); 1023 * 1024 * Routes are added as below: 1025 * pin-port mux -> pin (based on num_ports) 1026 * cvt -> "Input sel control" -> pin-port_mux 1027 * 1028 * Total route elements: 1029 * num_ports + (pin_muxes * num_cvt) 1030 */ 1031 static int create_fill_widget_route_map(struct snd_soc_dapm_context *dapm) 1032 { 1033 struct snd_soc_dapm_widget *widgets; 1034 struct snd_soc_dapm_route *route; 1035 struct hdac_ext_device *edev = to_hda_ext_device(dapm->dev); 1036 struct hdac_hdmi_priv *hdmi = edev->private_data; 1037 struct snd_soc_dai_driver *dai_drv = dapm->component->dai_drv; 1038 char widget_name[NAME_SIZE]; 1039 struct hdac_hdmi_cvt *cvt; 1040 struct hdac_hdmi_pin *pin; 1041 int ret, i = 0, num_routes = 0, j; 1042 1043 if (list_empty(&hdmi->cvt_list) || list_empty(&hdmi->pin_list)) 1044 return -EINVAL; 1045 1046 widgets = devm_kzalloc(dapm->dev, (sizeof(*widgets) * 1047 ((2 * hdmi->num_ports) + hdmi->num_cvt)), 1048 GFP_KERNEL); 1049 1050 if (!widgets) 1051 return -ENOMEM; 1052 1053 /* DAPM widgets to represent each converter widget */ 1054 list_for_each_entry(cvt, &hdmi->cvt_list, head) { 1055 sprintf(widget_name, "Converter %d", cvt->nid); 1056 ret = hdac_hdmi_fill_widget_info(dapm->dev, &widgets[i], 1057 snd_soc_dapm_aif_in, cvt, 1058 widget_name, dai_drv[i].playback.stream_name, NULL, 0, 1059 hdac_hdmi_cvt_output_widget_event, 1060 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD); 1061 if (ret < 0) 1062 return ret; 1063 i++; 1064 } 1065 1066 list_for_each_entry(pin, &hdmi->pin_list, head) { 1067 for (j = 0; j < pin->num_ports; j++) { 1068 sprintf(widget_name, "hif%d-%d Output", 1069 pin->nid, pin->ports[j].id); 1070 ret = hdac_hdmi_fill_widget_info(dapm->dev, &widgets[i], 1071 snd_soc_dapm_output, &pin->ports[j], 1072 widget_name, NULL, NULL, 0, 1073 hdac_hdmi_pin_output_widget_event, 1074 SND_SOC_DAPM_PRE_PMU | 1075 SND_SOC_DAPM_POST_PMD); 1076 if (ret < 0) 1077 return ret; 1078 pin->ports[j].output_pin = widgets[i].name; 1079 i++; 1080 } 1081 } 1082 1083 /* DAPM widgets to represent the connection list to pin widget */ 1084 list_for_each_entry(pin, &hdmi->pin_list, head) { 1085 for (j = 0; j < pin->num_ports; j++) { 1086 sprintf(widget_name, "Pin%d-Port%d Mux", 1087 pin->nid, pin->ports[j].id); 1088 ret = hdac_hdmi_create_pin_port_muxs(edev, 1089 &pin->ports[j], &widgets[i], 1090 widget_name); 1091 if (ret < 0) 1092 return ret; 1093 i++; 1094 1095 /* For cvt to pin_mux mapping */ 1096 num_routes += hdmi->num_cvt; 1097 1098 /* For pin_mux to pin mapping */ 1099 num_routes++; 1100 } 1101 } 1102 1103 route = devm_kzalloc(dapm->dev, (sizeof(*route) * num_routes), 1104 GFP_KERNEL); 1105 if (!route) 1106 return -ENOMEM; 1107 1108 i = 0; 1109 /* Add pin <- NULL <- mux route map */ 1110 list_for_each_entry(pin, &hdmi->pin_list, head) { 1111 for (j = 0; j < pin->num_ports; j++) { 1112 int sink_index = i + hdmi->num_cvt; 1113 int src_index = sink_index + pin->num_ports * 1114 hdmi->num_pin; 1115 1116 hdac_hdmi_fill_route(&route[i], 1117 widgets[sink_index].name, NULL, 1118 widgets[src_index].name, NULL); 1119 i++; 1120 } 1121 } 1122 1123 hdac_hdmi_add_pinmux_cvt_route(edev, widgets, route, i); 1124 1125 snd_soc_dapm_new_controls(dapm, widgets, 1126 ((2 * hdmi->num_ports) + hdmi->num_cvt)); 1127 1128 snd_soc_dapm_add_routes(dapm, route, num_routes); 1129 snd_soc_dapm_new_widgets(dapm->card); 1130 1131 return 0; 1132 1133 } 1134 1135 static int hdac_hdmi_init_dai_map(struct hdac_ext_device *edev) 1136 { 1137 struct hdac_hdmi_priv *hdmi = edev->private_data; 1138 struct hdac_hdmi_dai_port_map *dai_map; 1139 struct hdac_hdmi_cvt *cvt; 1140 int dai_id = 0; 1141 1142 if (list_empty(&hdmi->cvt_list)) 1143 return -EINVAL; 1144 1145 list_for_each_entry(cvt, &hdmi->cvt_list, head) { 1146 dai_map = &hdmi->dai_map[dai_id]; 1147 dai_map->dai_id = dai_id; 1148 dai_map->cvt = cvt; 1149 1150 dai_id++; 1151 1152 if (dai_id == HDA_MAX_CVTS) { 1153 dev_warn(&edev->hdac.dev, 1154 "Max dais supported: %d\n", dai_id); 1155 break; 1156 } 1157 } 1158 1159 return 0; 1160 } 1161 1162 static int hdac_hdmi_add_cvt(struct hdac_ext_device *edev, hda_nid_t nid) 1163 { 1164 struct hdac_hdmi_priv *hdmi = edev->private_data; 1165 struct hdac_hdmi_cvt *cvt; 1166 char name[NAME_SIZE]; 1167 1168 cvt = kzalloc(sizeof(*cvt), GFP_KERNEL); 1169 if (!cvt) 1170 return -ENOMEM; 1171 1172 cvt->nid = nid; 1173 sprintf(name, "cvt %d", cvt->nid); 1174 cvt->name = kstrdup(name, GFP_KERNEL); 1175 1176 list_add_tail(&cvt->head, &hdmi->cvt_list); 1177 hdmi->num_cvt++; 1178 1179 return hdac_hdmi_query_cvt_params(&edev->hdac, cvt); 1180 } 1181 1182 static int hdac_hdmi_parse_eld(struct hdac_ext_device *edev, 1183 struct hdac_hdmi_port *port) 1184 { 1185 unsigned int ver, mnl; 1186 1187 ver = (port->eld.eld_buffer[DRM_ELD_VER] & DRM_ELD_VER_MASK) 1188 >> DRM_ELD_VER_SHIFT; 1189 1190 if (ver != ELD_VER_CEA_861D && ver != ELD_VER_PARTIAL) { 1191 dev_err(&edev->hdac.dev, "HDMI: Unknown ELD version %d\n", ver); 1192 return -EINVAL; 1193 } 1194 1195 mnl = (port->eld.eld_buffer[DRM_ELD_CEA_EDID_VER_MNL] & 1196 DRM_ELD_MNL_MASK) >> DRM_ELD_MNL_SHIFT; 1197 1198 if (mnl > ELD_MAX_MNL) { 1199 dev_err(&edev->hdac.dev, "HDMI: MNL Invalid %d\n", mnl); 1200 return -EINVAL; 1201 } 1202 1203 port->eld.info.spk_alloc = port->eld.eld_buffer[DRM_ELD_SPEAKER]; 1204 1205 return 0; 1206 } 1207 1208 static void hdac_hdmi_present_sense(struct hdac_hdmi_pin *pin, 1209 struct hdac_hdmi_port *port) 1210 { 1211 struct hdac_ext_device *edev = pin->edev; 1212 struct hdac_hdmi_priv *hdmi = edev->private_data; 1213 struct hdac_hdmi_pcm *pcm; 1214 int size = 0; 1215 int port_id = -1; 1216 1217 if (!hdmi) 1218 return; 1219 1220 /* 1221 * In case of non MST pin, get_eld info API expectes port 1222 * to be -1. 1223 */ 1224 mutex_lock(&hdmi->pin_mutex); 1225 port->eld.monitor_present = false; 1226 1227 if (pin->mst_capable) 1228 port_id = port->id; 1229 1230 size = snd_hdac_acomp_get_eld(&edev->hdac, pin->nid, port_id, 1231 &port->eld.monitor_present, 1232 port->eld.eld_buffer, 1233 ELD_MAX_SIZE); 1234 1235 if (size > 0) { 1236 size = min(size, ELD_MAX_SIZE); 1237 if (hdac_hdmi_parse_eld(edev, port) < 0) 1238 size = -EINVAL; 1239 } 1240 1241 if (size > 0) { 1242 port->eld.eld_valid = true; 1243 port->eld.eld_size = size; 1244 } else { 1245 port->eld.eld_valid = false; 1246 port->eld.eld_size = 0; 1247 } 1248 1249 pcm = hdac_hdmi_get_pcm(edev, port); 1250 1251 if (!port->eld.monitor_present || !port->eld.eld_valid) { 1252 1253 dev_err(&edev->hdac.dev, "%s: disconnect for pin:port %d:%d\n", 1254 __func__, pin->nid, port->id); 1255 1256 /* 1257 * PCMs are not registered during device probe, so don't 1258 * report jack here. It will be done in usermode mux 1259 * control select. 1260 */ 1261 if (pcm) 1262 hdac_hdmi_jack_report(pcm, port, false); 1263 1264 mutex_unlock(&hdmi->pin_mutex); 1265 return; 1266 } 1267 1268 if (port->eld.monitor_present && port->eld.eld_valid) { 1269 if (pcm) 1270 hdac_hdmi_jack_report(pcm, port, true); 1271 1272 print_hex_dump_debug("ELD: ", DUMP_PREFIX_OFFSET, 16, 1, 1273 port->eld.eld_buffer, port->eld.eld_size, false); 1274 1275 } 1276 mutex_unlock(&hdmi->pin_mutex); 1277 } 1278 1279 static int hdac_hdmi_add_ports(struct hdac_hdmi_priv *hdmi, 1280 struct hdac_hdmi_pin *pin) 1281 { 1282 struct hdac_hdmi_port *ports; 1283 int max_ports = HDA_MAX_PORTS; 1284 int i; 1285 1286 /* 1287 * FIXME: max_port may vary for each platform, so pass this as 1288 * as driver data or query from i915 interface when this API is 1289 * implemented. 1290 */ 1291 1292 ports = kcalloc(max_ports, sizeof(*ports), GFP_KERNEL); 1293 if (!ports) 1294 return -ENOMEM; 1295 1296 for (i = 0; i < max_ports; i++) { 1297 ports[i].id = i; 1298 ports[i].pin = pin; 1299 } 1300 pin->ports = ports; 1301 pin->num_ports = max_ports; 1302 return 0; 1303 } 1304 1305 static int hdac_hdmi_add_pin(struct hdac_ext_device *edev, hda_nid_t nid) 1306 { 1307 struct hdac_hdmi_priv *hdmi = edev->private_data; 1308 struct hdac_hdmi_pin *pin; 1309 int ret; 1310 1311 pin = kzalloc(sizeof(*pin), GFP_KERNEL); 1312 if (!pin) 1313 return -ENOMEM; 1314 1315 pin->nid = nid; 1316 pin->mst_capable = false; 1317 pin->edev = edev; 1318 ret = hdac_hdmi_add_ports(hdmi, pin); 1319 if (ret < 0) 1320 return ret; 1321 1322 list_add_tail(&pin->head, &hdmi->pin_list); 1323 hdmi->num_pin++; 1324 hdmi->num_ports += pin->num_ports; 1325 1326 return 0; 1327 } 1328 1329 #define INTEL_VENDOR_NID 0x08 1330 #define INTEL_GLK_VENDOR_NID 0x0b 1331 #define INTEL_GET_VENDOR_VERB 0xf81 1332 #define INTEL_SET_VENDOR_VERB 0x781 1333 #define INTEL_EN_DP12 0x02 /* enable DP 1.2 features */ 1334 #define INTEL_EN_ALL_PIN_CVTS 0x01 /* enable 2nd & 3rd pins and convertors */ 1335 1336 static void hdac_hdmi_skl_enable_all_pins(struct hdac_device *hdac) 1337 { 1338 unsigned int vendor_param; 1339 struct hdac_ext_device *edev = to_ehdac_device(hdac); 1340 struct hdac_hdmi_priv *hdmi = edev->private_data; 1341 unsigned int vendor_nid = hdmi->drv_data->vendor_nid; 1342 1343 vendor_param = snd_hdac_codec_read(hdac, vendor_nid, 0, 1344 INTEL_GET_VENDOR_VERB, 0); 1345 if (vendor_param == -1 || vendor_param & INTEL_EN_ALL_PIN_CVTS) 1346 return; 1347 1348 vendor_param |= INTEL_EN_ALL_PIN_CVTS; 1349 vendor_param = snd_hdac_codec_read(hdac, vendor_nid, 0, 1350 INTEL_SET_VENDOR_VERB, vendor_param); 1351 if (vendor_param == -1) 1352 return; 1353 } 1354 1355 static void hdac_hdmi_skl_enable_dp12(struct hdac_device *hdac) 1356 { 1357 unsigned int vendor_param; 1358 struct hdac_ext_device *edev = to_ehdac_device(hdac); 1359 struct hdac_hdmi_priv *hdmi = edev->private_data; 1360 unsigned int vendor_nid = hdmi->drv_data->vendor_nid; 1361 1362 vendor_param = snd_hdac_codec_read(hdac, vendor_nid, 0, 1363 INTEL_GET_VENDOR_VERB, 0); 1364 if (vendor_param == -1 || vendor_param & INTEL_EN_DP12) 1365 return; 1366 1367 /* enable DP1.2 mode */ 1368 vendor_param |= INTEL_EN_DP12; 1369 vendor_param = snd_hdac_codec_read(hdac, vendor_nid, 0, 1370 INTEL_SET_VENDOR_VERB, vendor_param); 1371 if (vendor_param == -1) 1372 return; 1373 1374 } 1375 1376 static const struct snd_soc_dai_ops hdmi_dai_ops = { 1377 .startup = hdac_hdmi_pcm_open, 1378 .shutdown = hdac_hdmi_pcm_close, 1379 .hw_params = hdac_hdmi_set_hw_params, 1380 .set_tdm_slot = hdac_hdmi_set_tdm_slot, 1381 }; 1382 1383 /* 1384 * Each converter can support a stream independently. So a dai is created 1385 * based on the number of converter queried. 1386 */ 1387 static int hdac_hdmi_create_dais(struct hdac_device *hdac, 1388 struct snd_soc_dai_driver **dais, 1389 struct hdac_hdmi_priv *hdmi, int num_dais) 1390 { 1391 struct snd_soc_dai_driver *hdmi_dais; 1392 struct hdac_hdmi_cvt *cvt; 1393 char name[NAME_SIZE], dai_name[NAME_SIZE]; 1394 int i = 0; 1395 u32 rates, bps; 1396 unsigned int rate_max = 384000, rate_min = 8000; 1397 u64 formats; 1398 int ret; 1399 1400 hdmi_dais = devm_kzalloc(&hdac->dev, 1401 (sizeof(*hdmi_dais) * num_dais), 1402 GFP_KERNEL); 1403 if (!hdmi_dais) 1404 return -ENOMEM; 1405 1406 list_for_each_entry(cvt, &hdmi->cvt_list, head) { 1407 ret = snd_hdac_query_supported_pcm(hdac, cvt->nid, 1408 &rates, &formats, &bps); 1409 if (ret) 1410 return ret; 1411 1412 sprintf(dai_name, "intel-hdmi-hifi%d", i+1); 1413 hdmi_dais[i].name = devm_kstrdup(&hdac->dev, 1414 dai_name, GFP_KERNEL); 1415 1416 if (!hdmi_dais[i].name) 1417 return -ENOMEM; 1418 1419 snprintf(name, sizeof(name), "hifi%d", i+1); 1420 hdmi_dais[i].playback.stream_name = 1421 devm_kstrdup(&hdac->dev, name, GFP_KERNEL); 1422 if (!hdmi_dais[i].playback.stream_name) 1423 return -ENOMEM; 1424 1425 /* 1426 * Set caps based on capability queried from the converter. 1427 * It will be constrained runtime based on ELD queried. 1428 */ 1429 hdmi_dais[i].playback.formats = formats; 1430 hdmi_dais[i].playback.rates = rates; 1431 hdmi_dais[i].playback.rate_max = rate_max; 1432 hdmi_dais[i].playback.rate_min = rate_min; 1433 hdmi_dais[i].playback.channels_min = 2; 1434 hdmi_dais[i].playback.channels_max = 2; 1435 hdmi_dais[i].playback.sig_bits = bps; 1436 hdmi_dais[i].ops = &hdmi_dai_ops; 1437 i++; 1438 } 1439 1440 *dais = hdmi_dais; 1441 1442 return 0; 1443 } 1444 1445 /* 1446 * Parse all nodes and store the cvt/pin nids in array 1447 * Add one time initialization for pin and cvt widgets 1448 */ 1449 static int hdac_hdmi_parse_and_map_nid(struct hdac_ext_device *edev, 1450 struct snd_soc_dai_driver **dais, int *num_dais) 1451 { 1452 hda_nid_t nid; 1453 int i, num_nodes; 1454 struct hdac_device *hdac = &edev->hdac; 1455 struct hdac_hdmi_priv *hdmi = edev->private_data; 1456 struct hdac_hdmi_cvt *temp_cvt, *cvt_next; 1457 struct hdac_hdmi_pin *temp_pin, *pin_next; 1458 int ret; 1459 1460 hdac_hdmi_skl_enable_all_pins(hdac); 1461 hdac_hdmi_skl_enable_dp12(hdac); 1462 1463 num_nodes = snd_hdac_get_sub_nodes(hdac, hdac->afg, &nid); 1464 if (!nid || num_nodes <= 0) { 1465 dev_warn(&hdac->dev, "HDMI: failed to get afg sub nodes\n"); 1466 return -EINVAL; 1467 } 1468 1469 hdac->num_nodes = num_nodes; 1470 hdac->start_nid = nid; 1471 1472 for (i = 0; i < hdac->num_nodes; i++, nid++) { 1473 unsigned int caps; 1474 unsigned int type; 1475 1476 caps = get_wcaps(hdac, nid); 1477 type = get_wcaps_type(caps); 1478 1479 if (!(caps & AC_WCAP_DIGITAL)) 1480 continue; 1481 1482 switch (type) { 1483 1484 case AC_WID_AUD_OUT: 1485 ret = hdac_hdmi_add_cvt(edev, nid); 1486 if (ret < 0) 1487 goto free_widgets; 1488 break; 1489 1490 case AC_WID_PIN: 1491 ret = hdac_hdmi_add_pin(edev, nid); 1492 if (ret < 0) 1493 goto free_widgets; 1494 break; 1495 } 1496 } 1497 1498 hdac->end_nid = nid; 1499 1500 if (!hdmi->num_pin || !hdmi->num_cvt) { 1501 ret = -EIO; 1502 goto free_widgets; 1503 } 1504 1505 ret = hdac_hdmi_create_dais(hdac, dais, hdmi, hdmi->num_cvt); 1506 if (ret) { 1507 dev_err(&hdac->dev, "Failed to create dais with err: %d\n", 1508 ret); 1509 goto free_widgets; 1510 } 1511 1512 *num_dais = hdmi->num_cvt; 1513 ret = hdac_hdmi_init_dai_map(edev); 1514 if (ret < 0) 1515 goto free_widgets; 1516 1517 return ret; 1518 1519 free_widgets: 1520 list_for_each_entry_safe(temp_cvt, cvt_next, &hdmi->cvt_list, head) { 1521 list_del(&temp_cvt->head); 1522 kfree(temp_cvt->name); 1523 kfree(temp_cvt); 1524 } 1525 1526 list_for_each_entry_safe(temp_pin, pin_next, &hdmi->pin_list, head) { 1527 for (i = 0; i < temp_pin->num_ports; i++) 1528 temp_pin->ports[i].pin = NULL; 1529 kfree(temp_pin->ports); 1530 list_del(&temp_pin->head); 1531 kfree(temp_pin); 1532 } 1533 1534 return ret; 1535 } 1536 1537 static void hdac_hdmi_eld_notify_cb(void *aptr, int port, int pipe) 1538 { 1539 struct hdac_ext_device *edev = aptr; 1540 struct hdac_hdmi_priv *hdmi = edev->private_data; 1541 struct hdac_hdmi_pin *pin = NULL; 1542 struct hdac_hdmi_port *hport = NULL; 1543 struct snd_soc_codec *codec = edev->scodec; 1544 int i; 1545 1546 /* Don't know how this mapping is derived */ 1547 hda_nid_t pin_nid = port + 0x04; 1548 1549 dev_dbg(&edev->hdac.dev, "%s: for pin:%d port=%d\n", __func__, 1550 pin_nid, pipe); 1551 1552 /* 1553 * skip notification during system suspend (but not in runtime PM); 1554 * the state will be updated at resume. Also since the ELD and 1555 * connection states are updated in anyway at the end of the resume, 1556 * we can skip it when received during PM process. 1557 */ 1558 if (snd_power_get_state(codec->component.card->snd_card) != 1559 SNDRV_CTL_POWER_D0) 1560 return; 1561 1562 if (atomic_read(&edev->hdac.in_pm)) 1563 return; 1564 1565 list_for_each_entry(pin, &hdmi->pin_list, head) { 1566 if (pin->nid != pin_nid) 1567 continue; 1568 1569 /* In case of non MST pin, pipe is -1 */ 1570 if (pipe == -1) { 1571 pin->mst_capable = false; 1572 /* if not MST, default is port[0] */ 1573 hport = &pin->ports[0]; 1574 } else { 1575 for (i = 0; i < pin->num_ports; i++) { 1576 pin->mst_capable = true; 1577 if (pin->ports[i].id == pipe) { 1578 hport = &pin->ports[i]; 1579 break; 1580 } 1581 } 1582 } 1583 1584 if (hport) 1585 hdac_hdmi_present_sense(pin, hport); 1586 } 1587 1588 } 1589 1590 static struct i915_audio_component_audio_ops aops = { 1591 .pin_eld_notify = hdac_hdmi_eld_notify_cb, 1592 }; 1593 1594 static struct snd_pcm *hdac_hdmi_get_pcm_from_id(struct snd_soc_card *card, 1595 int device) 1596 { 1597 struct snd_soc_pcm_runtime *rtd; 1598 1599 list_for_each_entry(rtd, &card->rtd_list, list) { 1600 if (rtd->pcm && (rtd->pcm->device == device)) 1601 return rtd->pcm; 1602 } 1603 1604 return NULL; 1605 } 1606 1607 /* create jack pin kcontrols */ 1608 static int create_fill_jack_kcontrols(struct snd_soc_card *card, 1609 struct hdac_ext_device *edev) 1610 { 1611 struct hdac_hdmi_pin *pin; 1612 struct snd_kcontrol_new *kc; 1613 char kc_name[NAME_SIZE], xname[NAME_SIZE]; 1614 char *name; 1615 int i = 0, j; 1616 struct snd_soc_codec *codec = edev->scodec; 1617 struct hdac_hdmi_priv *hdmi = edev->private_data; 1618 1619 kc = devm_kcalloc(codec->dev, hdmi->num_ports, 1620 sizeof(*kc), GFP_KERNEL); 1621 1622 if (!kc) 1623 return -ENOMEM; 1624 1625 list_for_each_entry(pin, &hdmi->pin_list, head) { 1626 for (j = 0; j < pin->num_ports; j++) { 1627 snprintf(xname, sizeof(xname), "hif%d-%d Jack", 1628 pin->nid, pin->ports[j].id); 1629 name = devm_kstrdup(codec->dev, xname, GFP_KERNEL); 1630 if (!name) 1631 return -ENOMEM; 1632 snprintf(kc_name, sizeof(kc_name), "%s Switch", xname); 1633 kc[i].name = devm_kstrdup(codec->dev, kc_name, 1634 GFP_KERNEL); 1635 if (!kc[i].name) 1636 return -ENOMEM; 1637 1638 kc[i].private_value = (unsigned long)name; 1639 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1640 kc[i].access = 0; 1641 kc[i].info = snd_soc_dapm_info_pin_switch; 1642 kc[i].put = snd_soc_dapm_put_pin_switch; 1643 kc[i].get = snd_soc_dapm_get_pin_switch; 1644 i++; 1645 } 1646 } 1647 1648 return snd_soc_add_card_controls(card, kc, i); 1649 } 1650 1651 int hdac_hdmi_jack_port_init(struct snd_soc_codec *codec, 1652 struct snd_soc_dapm_context *dapm) 1653 { 1654 struct hdac_ext_device *edev = snd_soc_codec_get_drvdata(codec); 1655 struct hdac_hdmi_priv *hdmi = edev->private_data; 1656 struct hdac_hdmi_pin *pin; 1657 struct snd_soc_dapm_widget *widgets; 1658 struct snd_soc_dapm_route *route; 1659 char w_name[NAME_SIZE]; 1660 int i = 0, j, ret; 1661 1662 widgets = devm_kcalloc(dapm->dev, hdmi->num_ports, 1663 sizeof(*widgets), GFP_KERNEL); 1664 1665 if (!widgets) 1666 return -ENOMEM; 1667 1668 route = devm_kcalloc(dapm->dev, hdmi->num_ports, 1669 sizeof(*route), GFP_KERNEL); 1670 if (!route) 1671 return -ENOMEM; 1672 1673 /* create Jack DAPM widget */ 1674 list_for_each_entry(pin, &hdmi->pin_list, head) { 1675 for (j = 0; j < pin->num_ports; j++) { 1676 snprintf(w_name, sizeof(w_name), "hif%d-%d Jack", 1677 pin->nid, pin->ports[j].id); 1678 1679 ret = hdac_hdmi_fill_widget_info(dapm->dev, &widgets[i], 1680 snd_soc_dapm_spk, NULL, 1681 w_name, NULL, NULL, 0, NULL, 0); 1682 if (ret < 0) 1683 return ret; 1684 1685 pin->ports[j].jack_pin = widgets[i].name; 1686 pin->ports[j].dapm = dapm; 1687 1688 /* add to route from Jack widget to output */ 1689 hdac_hdmi_fill_route(&route[i], pin->ports[j].jack_pin, 1690 NULL, pin->ports[j].output_pin, NULL); 1691 1692 i++; 1693 } 1694 } 1695 1696 /* Add Route from Jack widget to the output widget */ 1697 ret = snd_soc_dapm_new_controls(dapm, widgets, hdmi->num_ports); 1698 if (ret < 0) 1699 return ret; 1700 1701 ret = snd_soc_dapm_add_routes(dapm, route, hdmi->num_ports); 1702 if (ret < 0) 1703 return ret; 1704 1705 ret = snd_soc_dapm_new_widgets(dapm->card); 1706 if (ret < 0) 1707 return ret; 1708 1709 /* Add Jack Pin switch Kcontrol */ 1710 ret = create_fill_jack_kcontrols(dapm->card, edev); 1711 1712 if (ret < 0) 1713 return ret; 1714 1715 /* default set the Jack Pin switch to OFF */ 1716 list_for_each_entry(pin, &hdmi->pin_list, head) { 1717 for (j = 0; j < pin->num_ports; j++) 1718 snd_soc_dapm_disable_pin(pin->ports[j].dapm, 1719 pin->ports[j].jack_pin); 1720 } 1721 1722 return 0; 1723 } 1724 EXPORT_SYMBOL_GPL(hdac_hdmi_jack_port_init); 1725 1726 int hdac_hdmi_jack_init(struct snd_soc_dai *dai, int device, 1727 struct snd_soc_jack *jack) 1728 { 1729 struct snd_soc_codec *codec = dai->codec; 1730 struct hdac_ext_device *edev = snd_soc_codec_get_drvdata(codec); 1731 struct hdac_hdmi_priv *hdmi = edev->private_data; 1732 struct hdac_hdmi_pcm *pcm; 1733 struct snd_pcm *snd_pcm; 1734 int err; 1735 1736 /* 1737 * this is a new PCM device, create new pcm and 1738 * add to the pcm list 1739 */ 1740 pcm = kzalloc(sizeof(*pcm), GFP_KERNEL); 1741 if (!pcm) 1742 return -ENOMEM; 1743 pcm->pcm_id = device; 1744 pcm->cvt = hdmi->dai_map[dai->id].cvt; 1745 pcm->jack_event = 0; 1746 pcm->jack = jack; 1747 mutex_init(&pcm->lock); 1748 INIT_LIST_HEAD(&pcm->port_list); 1749 snd_pcm = hdac_hdmi_get_pcm_from_id(dai->component->card, device); 1750 if (snd_pcm) { 1751 err = snd_hdac_add_chmap_ctls(snd_pcm, device, &hdmi->chmap); 1752 if (err < 0) { 1753 dev_err(&edev->hdac.dev, 1754 "chmap control add failed with err: %d for pcm: %d\n", 1755 err, device); 1756 kfree(pcm); 1757 return err; 1758 } 1759 } 1760 1761 list_add_tail(&pcm->head, &hdmi->pcm_list); 1762 1763 return 0; 1764 } 1765 EXPORT_SYMBOL_GPL(hdac_hdmi_jack_init); 1766 1767 static void hdac_hdmi_present_sense_all_pins(struct hdac_ext_device *edev, 1768 struct hdac_hdmi_priv *hdmi, bool detect_pin_caps) 1769 { 1770 int i; 1771 struct hdac_hdmi_pin *pin; 1772 1773 list_for_each_entry(pin, &hdmi->pin_list, head) { 1774 if (detect_pin_caps) { 1775 1776 if (hdac_hdmi_get_port_len(edev, pin->nid) == 0) 1777 pin->mst_capable = false; 1778 else 1779 pin->mst_capable = true; 1780 } 1781 1782 for (i = 0; i < pin->num_ports; i++) { 1783 if (!pin->mst_capable && i > 0) 1784 continue; 1785 1786 hdac_hdmi_present_sense(pin, &pin->ports[i]); 1787 } 1788 } 1789 } 1790 1791 static int hdmi_codec_probe(struct snd_soc_codec *codec) 1792 { 1793 struct hdac_ext_device *edev = snd_soc_codec_get_drvdata(codec); 1794 struct hdac_hdmi_priv *hdmi = edev->private_data; 1795 struct snd_soc_dapm_context *dapm = 1796 snd_soc_component_get_dapm(&codec->component); 1797 struct hdac_ext_link *hlink = NULL; 1798 int ret; 1799 1800 edev->scodec = codec; 1801 1802 /* 1803 * hold the ref while we probe, also no need to drop the ref on 1804 * exit, we call pm_runtime_suspend() so that will do for us 1805 */ 1806 hlink = snd_hdac_ext_bus_get_link(edev->ebus, dev_name(&edev->hdac.dev)); 1807 if (!hlink) { 1808 dev_err(&edev->hdac.dev, "hdac link not found\n"); 1809 return -EIO; 1810 } 1811 1812 snd_hdac_ext_bus_link_get(edev->ebus, hlink); 1813 1814 ret = create_fill_widget_route_map(dapm); 1815 if (ret < 0) 1816 return ret; 1817 1818 aops.audio_ptr = edev; 1819 ret = snd_hdac_i915_register_notifier(&aops); 1820 if (ret < 0) { 1821 dev_err(&edev->hdac.dev, "notifier register failed: err: %d\n", 1822 ret); 1823 return ret; 1824 } 1825 1826 hdac_hdmi_present_sense_all_pins(edev, hdmi, true); 1827 /* Imp: Store the card pointer in hda_codec */ 1828 edev->card = dapm->card->snd_card; 1829 1830 /* 1831 * hdac_device core already sets the state to active and calls 1832 * get_noresume. So enable runtime and set the device to suspend. 1833 */ 1834 pm_runtime_enable(&edev->hdac.dev); 1835 pm_runtime_put(&edev->hdac.dev); 1836 pm_runtime_suspend(&edev->hdac.dev); 1837 1838 return 0; 1839 } 1840 1841 static int hdmi_codec_remove(struct snd_soc_codec *codec) 1842 { 1843 struct hdac_ext_device *edev = snd_soc_codec_get_drvdata(codec); 1844 1845 pm_runtime_disable(&edev->hdac.dev); 1846 return 0; 1847 } 1848 1849 #ifdef CONFIG_PM 1850 static int hdmi_codec_prepare(struct device *dev) 1851 { 1852 struct hdac_ext_device *edev = to_hda_ext_device(dev); 1853 struct hdac_device *hdac = &edev->hdac; 1854 1855 pm_runtime_get_sync(&edev->hdac.dev); 1856 1857 /* 1858 * Power down afg. 1859 * codec_read is preferred over codec_write to set the power state. 1860 * This way verb is send to set the power state and response 1861 * is received. So setting power state is ensured without using loop 1862 * to read the state. 1863 */ 1864 snd_hdac_codec_read(hdac, hdac->afg, 0, AC_VERB_SET_POWER_STATE, 1865 AC_PWRST_D3); 1866 1867 return 0; 1868 } 1869 1870 static void hdmi_codec_complete(struct device *dev) 1871 { 1872 struct hdac_ext_device *edev = to_hda_ext_device(dev); 1873 struct hdac_hdmi_priv *hdmi = edev->private_data; 1874 struct hdac_device *hdac = &edev->hdac; 1875 1876 /* Power up afg */ 1877 snd_hdac_codec_read(hdac, hdac->afg, 0, AC_VERB_SET_POWER_STATE, 1878 AC_PWRST_D0); 1879 1880 hdac_hdmi_skl_enable_all_pins(&edev->hdac); 1881 hdac_hdmi_skl_enable_dp12(&edev->hdac); 1882 1883 /* 1884 * As the ELD notify callback request is not entertained while the 1885 * device is in suspend state. Need to manually check detection of 1886 * all pins here. pin capablity change is not support, so use the 1887 * already set pin caps. 1888 */ 1889 hdac_hdmi_present_sense_all_pins(edev, hdmi, false); 1890 1891 pm_runtime_put_sync(&edev->hdac.dev); 1892 } 1893 #else 1894 #define hdmi_codec_prepare NULL 1895 #define hdmi_codec_complete NULL 1896 #endif 1897 1898 static const struct snd_soc_codec_driver hdmi_hda_codec = { 1899 .probe = hdmi_codec_probe, 1900 .remove = hdmi_codec_remove, 1901 .idle_bias_off = true, 1902 }; 1903 1904 static void hdac_hdmi_get_chmap(struct hdac_device *hdac, int pcm_idx, 1905 unsigned char *chmap) 1906 { 1907 struct hdac_ext_device *edev = to_ehdac_device(hdac); 1908 struct hdac_hdmi_priv *hdmi = edev->private_data; 1909 struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx); 1910 1911 memcpy(chmap, pcm->chmap, ARRAY_SIZE(pcm->chmap)); 1912 } 1913 1914 static void hdac_hdmi_set_chmap(struct hdac_device *hdac, int pcm_idx, 1915 unsigned char *chmap, int prepared) 1916 { 1917 struct hdac_ext_device *edev = to_ehdac_device(hdac); 1918 struct hdac_hdmi_priv *hdmi = edev->private_data; 1919 struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx); 1920 struct hdac_hdmi_port *port; 1921 1922 if (!pcm) 1923 return; 1924 1925 if (list_empty(&pcm->port_list)) 1926 return; 1927 1928 mutex_lock(&pcm->lock); 1929 pcm->chmap_set = true; 1930 memcpy(pcm->chmap, chmap, ARRAY_SIZE(pcm->chmap)); 1931 list_for_each_entry(port, &pcm->port_list, head) 1932 if (prepared) 1933 hdac_hdmi_setup_audio_infoframe(edev, pcm, port); 1934 mutex_unlock(&pcm->lock); 1935 } 1936 1937 static bool is_hdac_hdmi_pcm_attached(struct hdac_device *hdac, int pcm_idx) 1938 { 1939 struct hdac_ext_device *edev = to_ehdac_device(hdac); 1940 struct hdac_hdmi_priv *hdmi = edev->private_data; 1941 struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx); 1942 1943 if (!pcm) 1944 return false; 1945 1946 if (list_empty(&pcm->port_list)) 1947 return false; 1948 1949 return true; 1950 } 1951 1952 static int hdac_hdmi_get_spk_alloc(struct hdac_device *hdac, int pcm_idx) 1953 { 1954 struct hdac_ext_device *edev = to_ehdac_device(hdac); 1955 struct hdac_hdmi_priv *hdmi = edev->private_data; 1956 struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx); 1957 struct hdac_hdmi_port *port; 1958 1959 if (!pcm) 1960 return 0; 1961 1962 if (list_empty(&pcm->port_list)) 1963 return 0; 1964 1965 port = list_first_entry(&pcm->port_list, struct hdac_hdmi_port, head); 1966 1967 if (!port) 1968 return 0; 1969 1970 if (!port || !port->eld.eld_valid) 1971 return 0; 1972 1973 return port->eld.info.spk_alloc; 1974 } 1975 1976 static struct hdac_hdmi_drv_data intel_glk_drv_data = { 1977 .vendor_nid = INTEL_GLK_VENDOR_NID, 1978 }; 1979 1980 static struct hdac_hdmi_drv_data intel_drv_data = { 1981 .vendor_nid = INTEL_VENDOR_NID, 1982 }; 1983 1984 static int hdac_hdmi_dev_probe(struct hdac_ext_device *edev) 1985 { 1986 struct hdac_device *codec = &edev->hdac; 1987 struct hdac_hdmi_priv *hdmi_priv; 1988 struct snd_soc_dai_driver *hdmi_dais = NULL; 1989 struct hdac_ext_link *hlink = NULL; 1990 int num_dais = 0; 1991 int ret = 0; 1992 struct hdac_driver *hdrv = drv_to_hdac_driver(codec->dev.driver); 1993 const struct hda_device_id *hdac_id = hdac_get_device_id(codec, hdrv); 1994 1995 /* hold the ref while we probe */ 1996 hlink = snd_hdac_ext_bus_get_link(edev->ebus, dev_name(&edev->hdac.dev)); 1997 if (!hlink) { 1998 dev_err(&edev->hdac.dev, "hdac link not found\n"); 1999 return -EIO; 2000 } 2001 2002 snd_hdac_ext_bus_link_get(edev->ebus, hlink); 2003 2004 hdmi_priv = devm_kzalloc(&codec->dev, sizeof(*hdmi_priv), GFP_KERNEL); 2005 if (hdmi_priv == NULL) 2006 return -ENOMEM; 2007 2008 edev->private_data = hdmi_priv; 2009 snd_hdac_register_chmap_ops(codec, &hdmi_priv->chmap); 2010 hdmi_priv->chmap.ops.get_chmap = hdac_hdmi_get_chmap; 2011 hdmi_priv->chmap.ops.set_chmap = hdac_hdmi_set_chmap; 2012 hdmi_priv->chmap.ops.is_pcm_attached = is_hdac_hdmi_pcm_attached; 2013 hdmi_priv->chmap.ops.get_spk_alloc = hdac_hdmi_get_spk_alloc; 2014 2015 if (!hdac_id) 2016 return -ENODEV; 2017 2018 if (hdac_id->driver_data) 2019 hdmi_priv->drv_data = 2020 (struct hdac_hdmi_drv_data *)hdac_id->driver_data; 2021 else 2022 hdmi_priv->drv_data = &intel_drv_data; 2023 2024 dev_set_drvdata(&codec->dev, edev); 2025 2026 INIT_LIST_HEAD(&hdmi_priv->pin_list); 2027 INIT_LIST_HEAD(&hdmi_priv->cvt_list); 2028 INIT_LIST_HEAD(&hdmi_priv->pcm_list); 2029 mutex_init(&hdmi_priv->pin_mutex); 2030 2031 /* 2032 * Turned off in the runtime_suspend during the first explicit 2033 * pm_runtime_suspend call. 2034 */ 2035 ret = snd_hdac_display_power(edev->hdac.bus, true); 2036 if (ret < 0) { 2037 dev_err(&edev->hdac.dev, 2038 "Cannot turn on display power on i915 err: %d\n", 2039 ret); 2040 return ret; 2041 } 2042 2043 ret = hdac_hdmi_parse_and_map_nid(edev, &hdmi_dais, &num_dais); 2044 if (ret < 0) { 2045 dev_err(&codec->dev, 2046 "Failed in parse and map nid with err: %d\n", ret); 2047 return ret; 2048 } 2049 2050 /* ASoC specific initialization */ 2051 ret = snd_soc_register_codec(&codec->dev, &hdmi_hda_codec, 2052 hdmi_dais, num_dais); 2053 2054 snd_hdac_ext_bus_link_put(edev->ebus, hlink); 2055 2056 return ret; 2057 } 2058 2059 static int hdac_hdmi_dev_remove(struct hdac_ext_device *edev) 2060 { 2061 struct hdac_hdmi_priv *hdmi = edev->private_data; 2062 struct hdac_hdmi_pin *pin, *pin_next; 2063 struct hdac_hdmi_cvt *cvt, *cvt_next; 2064 struct hdac_hdmi_pcm *pcm, *pcm_next; 2065 struct hdac_hdmi_port *port, *port_next; 2066 int i; 2067 2068 snd_soc_unregister_codec(&edev->hdac.dev); 2069 2070 list_for_each_entry_safe(pcm, pcm_next, &hdmi->pcm_list, head) { 2071 pcm->cvt = NULL; 2072 if (list_empty(&pcm->port_list)) 2073 continue; 2074 2075 list_for_each_entry_safe(port, port_next, 2076 &pcm->port_list, head) 2077 list_del(&port->head); 2078 2079 list_del(&pcm->head); 2080 kfree(pcm); 2081 } 2082 2083 list_for_each_entry_safe(cvt, cvt_next, &hdmi->cvt_list, head) { 2084 list_del(&cvt->head); 2085 kfree(cvt->name); 2086 kfree(cvt); 2087 } 2088 2089 list_for_each_entry_safe(pin, pin_next, &hdmi->pin_list, head) { 2090 for (i = 0; i < pin->num_ports; i++) 2091 pin->ports[i].pin = NULL; 2092 kfree(pin->ports); 2093 list_del(&pin->head); 2094 kfree(pin); 2095 } 2096 2097 return 0; 2098 } 2099 2100 #ifdef CONFIG_PM 2101 static int hdac_hdmi_runtime_suspend(struct device *dev) 2102 { 2103 struct hdac_ext_device *edev = to_hda_ext_device(dev); 2104 struct hdac_device *hdac = &edev->hdac; 2105 struct hdac_bus *bus = hdac->bus; 2106 struct hdac_ext_bus *ebus = hbus_to_ebus(bus); 2107 struct hdac_ext_link *hlink = NULL; 2108 int err; 2109 2110 dev_dbg(dev, "Enter: %s\n", __func__); 2111 2112 /* controller may not have been initialized for the first time */ 2113 if (!bus) 2114 return 0; 2115 2116 /* 2117 * Power down afg. 2118 * codec_read is preferred over codec_write to set the power state. 2119 * This way verb is send to set the power state and response 2120 * is received. So setting power state is ensured without using loop 2121 * to read the state. 2122 */ 2123 snd_hdac_codec_read(hdac, hdac->afg, 0, AC_VERB_SET_POWER_STATE, 2124 AC_PWRST_D3); 2125 err = snd_hdac_display_power(bus, false); 2126 if (err < 0) { 2127 dev_err(bus->dev, "Cannot turn on display power on i915\n"); 2128 return err; 2129 } 2130 2131 hlink = snd_hdac_ext_bus_get_link(ebus, dev_name(dev)); 2132 if (!hlink) { 2133 dev_err(dev, "hdac link not found\n"); 2134 return -EIO; 2135 } 2136 2137 snd_hdac_ext_bus_link_put(ebus, hlink); 2138 2139 return 0; 2140 } 2141 2142 static int hdac_hdmi_runtime_resume(struct device *dev) 2143 { 2144 struct hdac_ext_device *edev = to_hda_ext_device(dev); 2145 struct hdac_device *hdac = &edev->hdac; 2146 struct hdac_bus *bus = hdac->bus; 2147 struct hdac_ext_bus *ebus = hbus_to_ebus(bus); 2148 struct hdac_ext_link *hlink = NULL; 2149 int err; 2150 2151 dev_dbg(dev, "Enter: %s\n", __func__); 2152 2153 /* controller may not have been initialized for the first time */ 2154 if (!bus) 2155 return 0; 2156 2157 hlink = snd_hdac_ext_bus_get_link(ebus, dev_name(dev)); 2158 if (!hlink) { 2159 dev_err(dev, "hdac link not found\n"); 2160 return -EIO; 2161 } 2162 2163 snd_hdac_ext_bus_link_get(ebus, hlink); 2164 2165 err = snd_hdac_display_power(bus, true); 2166 if (err < 0) { 2167 dev_err(bus->dev, "Cannot turn on display power on i915\n"); 2168 return err; 2169 } 2170 2171 hdac_hdmi_skl_enable_all_pins(&edev->hdac); 2172 hdac_hdmi_skl_enable_dp12(&edev->hdac); 2173 2174 /* Power up afg */ 2175 snd_hdac_codec_read(hdac, hdac->afg, 0, AC_VERB_SET_POWER_STATE, 2176 AC_PWRST_D0); 2177 2178 return 0; 2179 } 2180 #else 2181 #define hdac_hdmi_runtime_suspend NULL 2182 #define hdac_hdmi_runtime_resume NULL 2183 #endif 2184 2185 static const struct dev_pm_ops hdac_hdmi_pm = { 2186 SET_RUNTIME_PM_OPS(hdac_hdmi_runtime_suspend, hdac_hdmi_runtime_resume, NULL) 2187 .prepare = hdmi_codec_prepare, 2188 .complete = hdmi_codec_complete, 2189 }; 2190 2191 static const struct hda_device_id hdmi_list[] = { 2192 HDA_CODEC_EXT_ENTRY(0x80862809, 0x100000, "Skylake HDMI", 0), 2193 HDA_CODEC_EXT_ENTRY(0x8086280a, 0x100000, "Broxton HDMI", 0), 2194 HDA_CODEC_EXT_ENTRY(0x8086280b, 0x100000, "Kabylake HDMI", 0), 2195 HDA_CODEC_EXT_ENTRY(0x8086280d, 0x100000, "Geminilake HDMI", 2196 &intel_glk_drv_data), 2197 {} 2198 }; 2199 2200 MODULE_DEVICE_TABLE(hdaudio, hdmi_list); 2201 2202 static struct hdac_ext_driver hdmi_driver = { 2203 . hdac = { 2204 .driver = { 2205 .name = "HDMI HDA Codec", 2206 .pm = &hdac_hdmi_pm, 2207 }, 2208 .id_table = hdmi_list, 2209 }, 2210 .probe = hdac_hdmi_dev_probe, 2211 .remove = hdac_hdmi_dev_remove, 2212 }; 2213 2214 static int __init hdmi_init(void) 2215 { 2216 return snd_hda_ext_driver_register(&hdmi_driver); 2217 } 2218 2219 static void __exit hdmi_exit(void) 2220 { 2221 snd_hda_ext_driver_unregister(&hdmi_driver); 2222 } 2223 2224 module_init(hdmi_init); 2225 module_exit(hdmi_exit); 2226 2227 MODULE_LICENSE("GPL v2"); 2228 MODULE_DESCRIPTION("HDMI HD codec"); 2229 MODULE_AUTHOR("Samreen Nilofer<samreen.nilofer@intel.com>"); 2230 MODULE_AUTHOR("Subhransu S. Prusty<subhransu.s.prusty@intel.com>"); 2231