sound/soc/codecs/hdac_hdmi.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  *  hdac_hdmi.c - ASoc HDA-HDMI codec driver for Intel platforms
   4  *
   5  *  Copyright (C) 2014-2015 Intel Corp
   6  *  Author: Samreen Nilofer <samreen.nilofer@intel.com>
   7  *          Subhransu S. Prusty <subhransu.s.prusty@intel.com>
   8  *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   9  *
  10  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  11  */
  12 #include <linux/init.h>
  13 #include <linux/delay.h>
  14 #include <linux/module.h>
  15 #include <linux/pm_runtime.h>
  16 #include <linux/hdmi.h>
  17 #include <drm/drm_edid.h>
  18 #include <sound/pcm_params.h>
  19 #include <sound/jack.h>
  20 #include <sound/soc.h>
  21 #include <sound/hdaudio_ext.h>
  22 #include <sound/hda_i915.h>
  23 #include <sound/pcm_drm_eld.h>
  24 #include <sound/hda_chmap.h>
  25 #include "../../hda/local.h"
  26 #include "hdac_hdmi.h"
  27
  28 #define NAME_SIZE       32
  29
  30 #define AMP_OUT_MUTE            0xb080
  31 #define AMP_OUT_UNMUTE          0xb000
  32 #define PIN_OUT                 (AC_PINCTL_OUT_EN)
  33
  34 #define HDA_MAX_CONNECTIONS     32
  35
  36 #define HDA_MAX_CVTS            3
  37 #define HDA_MAX_PORTS           3
  38
  39 #define ELD_MAX_SIZE    256
  40 #define ELD_FIXED_BYTES 20
  41
  42 #define ELD_VER_CEA_861D 2
  43 #define ELD_VER_PARTIAL 31
  44 #define ELD_MAX_MNL     16
  45
  46 struct hdac_hdmi_cvt_params {
  47         unsigned int channels_min;
  48         unsigned int channels_max;
  49         u32 rates;
  50         u64 formats;
  51         unsigned int maxbps;
  52 };
  53
  54 struct hdac_hdmi_cvt {
  55         struct list_head head;
  56         hda_nid_t nid;
  57         const char *name;
  58         struct hdac_hdmi_cvt_params params;
  59 };
  60
  61 /* Currently only spk_alloc, more to be added */
  62 struct hdac_hdmi_parsed_eld {
  63         u8 spk_alloc;
  64 };
  65
  66 struct hdac_hdmi_eld {
  67         bool    monitor_present;
  68         bool    eld_valid;
  69         int     eld_size;
  70         char    eld_buffer[ELD_MAX_SIZE];
  71         struct  hdac_hdmi_parsed_eld info;
  72 };
  73
  74 struct hdac_hdmi_pin {
  75         struct list_head head;
  76         hda_nid_t nid;
  77         bool mst_capable;
  78         struct hdac_hdmi_port *ports;
  79         int num_ports;
  80         struct hdac_device *hdev;
  81 };
  82
  83 struct hdac_hdmi_port {
  84         struct list_head head;
  85         int id;
  86         struct hdac_hdmi_pin *pin;
  87         int num_mux_nids;
  88         hda_nid_t mux_nids[HDA_MAX_CONNECTIONS];
  89         struct hdac_hdmi_eld eld;
  90         const char *jack_pin;
  91         bool is_connect;
  92         struct snd_soc_dapm_context *dapm;
  93         const char *output_pin;
  94         struct work_struct dapm_work;
  95 };
  96
  97 struct hdac_hdmi_pcm {
  98         struct list_head head;
  99         int pcm_id;
 100         struct list_head port_list;
 101         struct hdac_hdmi_cvt *cvt;
 102         struct snd_soc_jack *jack;
 103         int stream_tag;
 104         int channels;
 105         int format;
 106         bool chmap_set;
 107         unsigned char chmap[8]; /* ALSA API channel-map */
 108         struct mutex lock;
 109         int jack_event;
 110 };
 111
 112 struct hdac_hdmi_dai_port_map {
 113         int dai_id;
 114         struct hdac_hdmi_port *port;
 115         struct hdac_hdmi_cvt *cvt;
 116 };
 117
 118 /*
 119  * pin to port mapping table where the value indicate the pin number and
 120  * the index indicate the port number with 1 base.
 121  */
 122 static const int icl_pin2port_map[] = {0x4, 0x6, 0x8, 0xa, 0xb};
 123
 124 struct hdac_hdmi_drv_data {
 125         unsigned int vendor_nid;
 126         const int *port_map; /* pin to port mapping table */
 127         int port_num;
 128 };
 129
 130 struct hdac_hdmi_priv {
 131         struct hdac_device *hdev;
 132         struct snd_soc_component *component;
 133         struct snd_card *card;
 134         struct hdac_hdmi_dai_port_map dai_map[HDA_MAX_CVTS];
 135         struct list_head pin_list;
 136         struct list_head cvt_list;
 137         struct list_head pcm_list;
 138         int num_pin;
 139         int num_cvt;
 140         int num_ports;
 141         struct mutex pin_mutex;
 142         struct hdac_chmap chmap;
 143         struct hdac_hdmi_drv_data *drv_data;
 144         struct snd_soc_dai_driver *dai_drv;
 145 };
 146
 147 #define hdev_to_hdmi_priv(_hdev) dev_get_drvdata(&(_hdev)->dev)
 148
 149 static struct hdac_hdmi_pcm *
 150 hdac_hdmi_get_pcm_from_cvt(struct hdac_hdmi_priv *hdmi,
 151                            struct hdac_hdmi_cvt *cvt)
 152 {
 153         struct hdac_hdmi_pcm *pcm = NULL;
 154
 155         list_for_each_entry(pcm, &hdmi->pcm_list, head) {
 156                 if (pcm->cvt == cvt)
 157                         break;
 158         }
 159
 160         return pcm;
 161 }
 162
 163 static void hdac_hdmi_jack_report(struct hdac_hdmi_pcm *pcm,
 164                 struct hdac_hdmi_port *port, bool is_connect)
 165 {
 166         struct hdac_device *hdev = port->pin->hdev;
 167
 168         port->is_connect = is_connect;
 169         if (is_connect) {
 170                 /*
 171                  * Report Jack connect event when a device is connected
 172                  * for the first time where same PCM is attached to multiple
 173                  * ports.
 174                  */
 175                 if (pcm->jack_event == 0) {
 176                         dev_dbg(&hdev->dev,
 177                                         "jack report for pcm=%d\n",
 178                                         pcm->pcm_id);
 179                         snd_soc_jack_report(pcm->jack, SND_JACK_AVOUT,
 180                                                 SND_JACK_AVOUT);
 181                 }
 182                 pcm->jack_event++;
 183         } else {
 184                 /*
 185                  * Report Jack disconnect event when a device is disconnected
 186                  * is the only last connected device when same PCM is attached
 187                  * to multiple ports.
 188                  */
 189                 if (pcm->jack_event == 1)
 190                         snd_soc_jack_report(pcm->jack, 0, SND_JACK_AVOUT);
 191                 if (pcm->jack_event > 0)
 192                         pcm->jack_event--;
 193         }
 194 }
 195
 196 static void hdac_hdmi_port_dapm_update(struct hdac_hdmi_port *port)
 197 {
 198         if (port->is_connect)
 199                 snd_soc_dapm_enable_pin(port->dapm, port->jack_pin);
 200         else
 201                 snd_soc_dapm_disable_pin(port->dapm, port->jack_pin);
 202         snd_soc_dapm_sync(port->dapm);
 203 }
 204
 205 static void hdac_hdmi_jack_dapm_work(struct work_struct *work)
 206 {
 207         struct hdac_hdmi_port *port;
 208
 209         port = container_of(work, struct hdac_hdmi_port, dapm_work);
 210         hdac_hdmi_port_dapm_update(port);
 211 }
 212
 213 static void hdac_hdmi_jack_report_sync(struct hdac_hdmi_pcm *pcm,
 214                 struct hdac_hdmi_port *port, bool is_connect)
 215 {
 216         hdac_hdmi_jack_report(pcm, port, is_connect);
 217         hdac_hdmi_port_dapm_update(port);
 218 }
 219
 220 /* MST supported verbs */
 221 /*
 222  * Get the no devices that can be connected to a port on the Pin widget.
 223  */
 224 static int hdac_hdmi_get_port_len(struct hdac_device *hdev, hda_nid_t nid)
 225 {
 226         unsigned int caps;
 227         unsigned int type, param;
 228
 229         caps = get_wcaps(hdev, nid);
 230         type = get_wcaps_type(caps);
 231
 232         if (!(caps & AC_WCAP_DIGITAL) || (type != AC_WID_PIN))
 233                 return 0;
 234
 235         param = snd_hdac_read_parm_uncached(hdev, nid, AC_PAR_DEVLIST_LEN);
 236         if (param == -1)
 237                 return param;
 238
 239         return param & AC_DEV_LIST_LEN_MASK;
 240 }
 241
 242 /*
 243  * Get the port entry select on the pin. Return the port entry
 244  * id selected on the pin. Return 0 means the first port entry
 245  * is selected or MST is not supported.
 246  */
 247 static int hdac_hdmi_port_select_get(struct hdac_device *hdev,
 248                                         struct hdac_hdmi_port *port)
 249 {
 250         return snd_hdac_codec_read(hdev, port->pin->nid,
 251                                 0, AC_VERB_GET_DEVICE_SEL, 0);
 252 }
 253
 254 /*
 255  * Sets the selected port entry for the configuring Pin widget verb.
 256  * returns error if port set is not equal to port get otherwise success
 257  */
 258 static int hdac_hdmi_port_select_set(struct hdac_device *hdev,
 259                                         struct hdac_hdmi_port *port)
 260 {
 261         int num_ports;
 262
 263         if (!port->pin->mst_capable)
 264                 return 0;
 265
 266         /* AC_PAR_DEVLIST_LEN is 0 based. */
 267         num_ports = hdac_hdmi_get_port_len(hdev, port->pin->nid);
 268         if (num_ports < 0)
 269                 return -EIO;
 270         /*
 271          * Device List Length is a 0 based integer value indicating the
 272          * number of sink device that a MST Pin Widget can support.
 273          */
 274         if (num_ports + 1  < port->id)
 275                 return 0;
 276
 277         snd_hdac_codec_write(hdev, port->pin->nid, 0,
 278                         AC_VERB_SET_DEVICE_SEL, port->id);
 279
 280         if (port->id != hdac_hdmi_port_select_get(hdev, port))
 281                 return -EIO;
 282
 283         dev_dbg(&hdev->dev, "Selected the port=%d\n", port->id);
 284
 285         return 0;
 286 }
 287
 288 static struct hdac_hdmi_pcm *get_hdmi_pcm_from_id(struct hdac_hdmi_priv *hdmi,
 289                                                 int pcm_idx)
 290 {
 291         struct hdac_hdmi_pcm *pcm;
 292
 293         list_for_each_entry(pcm, &hdmi->pcm_list, head) {
 294                 if (pcm->pcm_id == pcm_idx)
 295                         return pcm;
 296         }
 297
 298         return NULL;
 299 }
 300
 301 static unsigned int sad_format(const u8 *sad)
 302 {
 303         return ((sad[0] >> 0x3) & 0x1f);
 304 }
 305
 306 static unsigned int sad_sample_bits_lpcm(const u8 *sad)
 307 {
 308         return (sad[2] & 7);
 309 }
 310
 311 static int hdac_hdmi_eld_limit_formats(struct snd_pcm_runtime *runtime,
 312                                                 void *eld)
 313 {
 314         u64 formats = SNDRV_PCM_FMTBIT_S16;
 315         int i;
 316         const u8 *sad, *eld_buf = eld;
 317
 318         sad = drm_eld_sad(eld_buf);
 319         if (!sad)
 320                 goto format_constraint;
 321
 322         for (i = drm_eld_sad_count(eld_buf); i > 0; i--, sad += 3) {
 323                 if (sad_format(sad) == 1) { /* AUDIO_CODING_TYPE_LPCM */
 324
 325                         /*
 326                          * the controller support 20 and 24 bits in 32 bit
 327                          * container so we set S32
 328                          */
 329                         if (sad_sample_bits_lpcm(sad) & 0x6)
 330                                 formats |= SNDRV_PCM_FMTBIT_S32;
 331                 }
 332         }
 333
 334 format_constraint:
 335         return snd_pcm_hw_constraint_mask64(runtime, SNDRV_PCM_HW_PARAM_FORMAT,
 336                                 formats);
 337
 338 }
 339
 340 static void
 341 hdac_hdmi_set_dip_index(struct hdac_device *hdev, hda_nid_t pin_nid,
 342                                 int packet_index, int byte_index)
 343 {
 344         int val;
 345
 346         val = (packet_index << 5) | (byte_index & 0x1f);
 347         snd_hdac_codec_write(hdev, pin_nid, 0, AC_VERB_SET_HDMI_DIP_INDEX, val);
 348 }
 349
 350 struct dp_audio_infoframe {
 351         u8 type; /* 0x84 */
 352         u8 len;  /* 0x1b */
 353         u8 ver;  /* 0x11 << 2 */
 354
 355         u8 CC02_CT47;   /* match with HDMI infoframe from this on */
 356         u8 SS01_SF24;
 357         u8 CXT04;
 358         u8 CA;
 359         u8 LFEPBL01_LSV36_DM_INH7;
 360 };
 361
 362 static int hdac_hdmi_setup_audio_infoframe(struct hdac_device *hdev,
 363                    struct hdac_hdmi_pcm *pcm, struct hdac_hdmi_port *port)
 364 {
 365         uint8_t buffer[HDMI_INFOFRAME_HEADER_SIZE + HDMI_AUDIO_INFOFRAME_SIZE];
 366         struct hdmi_audio_infoframe frame;
 367         struct hdac_hdmi_pin *pin = port->pin;
 368         struct dp_audio_infoframe dp_ai;
 369         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
 370         struct hdac_hdmi_cvt *cvt = pcm->cvt;
 371         u8 *dip;
 372         int ret;
 373         int i;
 374         const u8 *eld_buf;
 375         u8 conn_type;
 376         int channels, ca;
 377
 378         ca = snd_hdac_channel_allocation(hdev, port->eld.info.spk_alloc,
 379                         pcm->channels, pcm->chmap_set, true, pcm->chmap);
 380
 381         channels = snd_hdac_get_active_channels(ca);
 382         hdmi->chmap.ops.set_channel_count(hdev, cvt->nid, channels);
 383
 384         snd_hdac_setup_channel_mapping(&hdmi->chmap, pin->nid, false, ca,
 385                                 pcm->channels, pcm->chmap, pcm->chmap_set);
 386
 387         eld_buf = port->eld.eld_buffer;
 388         conn_type = drm_eld_get_conn_type(eld_buf);
 389
 390         switch (conn_type) {
 391         case DRM_ELD_CONN_TYPE_HDMI:
 392                 hdmi_audio_infoframe_init(&frame);
 393
 394                 frame.channels = channels;
 395                 frame.channel_allocation = ca;
 396
 397                 ret = hdmi_audio_infoframe_pack(&frame, buffer, sizeof(buffer));
 398                 if (ret < 0)
 399                         return ret;
 400
 401                 break;
 402
 403         case DRM_ELD_CONN_TYPE_DP:
 404                 memset(&dp_ai, 0, sizeof(dp_ai));
 405                 dp_ai.type      = 0x84;
 406                 dp_ai.len       = 0x1b;
 407                 dp_ai.ver       = 0x11 << 2;
 408                 dp_ai.CC02_CT47 = channels - 1;
 409                 dp_ai.CA        = ca;
 410
 411                 dip = (u8 *)&dp_ai;
 412                 break;
 413
 414         default:
 415                 dev_err(&hdev->dev, "Invalid connection type: %d\n", conn_type);
 416                 return -EIO;
 417         }
 418
 419         /* stop infoframe transmission */
 420         hdac_hdmi_set_dip_index(hdev, pin->nid, 0x0, 0x0);
 421         snd_hdac_codec_write(hdev, pin->nid, 0,
 422                         AC_VERB_SET_HDMI_DIP_XMIT, AC_DIPXMIT_DISABLE);
 423
 424
 425         /*  Fill infoframe. Index auto-incremented */
 426         hdac_hdmi_set_dip_index(hdev, pin->nid, 0x0, 0x0);
 427         if (conn_type == DRM_ELD_CONN_TYPE_HDMI) {
 428                 for (i = 0; i < sizeof(buffer); i++)
 429                         snd_hdac_codec_write(hdev, pin->nid, 0,
 430                                 AC_VERB_SET_HDMI_DIP_DATA, buffer[i]);
 431         } else {
 432                 for (i = 0; i < sizeof(dp_ai); i++)
 433                         snd_hdac_codec_write(hdev, pin->nid, 0,
 434                                 AC_VERB_SET_HDMI_DIP_DATA, dip[i]);
 435         }
 436
 437         /* Start infoframe */
 438         hdac_hdmi_set_dip_index(hdev, pin->nid, 0x0, 0x0);
 439         snd_hdac_codec_write(hdev, pin->nid, 0,
 440                         AC_VERB_SET_HDMI_DIP_XMIT, AC_DIPXMIT_BEST);
 441
 442         return 0;
 443 }
 444
 445 static int hdac_hdmi_set_tdm_slot(struct snd_soc_dai *dai,
 446                 unsigned int tx_mask, unsigned int rx_mask,
 447                 int slots, int slot_width)
 448 {
 449         struct hdac_hdmi_priv *hdmi = snd_soc_dai_get_drvdata(dai);
 450         struct hdac_device *hdev = hdmi->hdev;
 451         struct hdac_hdmi_dai_port_map *dai_map;
 452         struct hdac_hdmi_pcm *pcm;
 453
 454         dev_dbg(&hdev->dev, "%s: strm_tag: %d\n", __func__, tx_mask);
 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 = (tx_mask << 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 = NULL;
 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 = NULL;
 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 = NULL;
 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
1260         if (!hdmi)
1261                 return;
1262
1263         /*
1264          * In case of non MST pin, get_eld info API expectes port
1265          * to be -1.
1266          */
1267         mutex_lock(&hdmi->pin_mutex);
1268         port->eld.monitor_present = false;
1269
1270         if (pin->mst_capable)
1271                 port_id = port->id;
1272
1273         size = snd_hdac_acomp_get_eld(hdev, pin->nid, port_id,
1274                                 &port->eld.monitor_present,
1275                                 port->eld.eld_buffer,
1276                                 ELD_MAX_SIZE);
1277
1278         if (size > 0) {
1279                 size = min(size, ELD_MAX_SIZE);
1280                 if (hdac_hdmi_parse_eld(hdev, port) < 0)
1281                         size = -EINVAL;
1282         }
1283
1284         if (size > 0) {
1285                 port->eld.eld_valid = true;
1286                 port->eld.eld_size = size;
1287         } else {
1288                 port->eld.eld_valid = false;
1289                 port->eld.eld_size = 0;
1290         }
1291
1292         pcm = hdac_hdmi_get_pcm(hdev, port);
1293
1294         if (!port->eld.monitor_present || !port->eld.eld_valid) {
1295
1296                 dev_err(&hdev->dev, "%s: disconnect for pin:port %d:%d\n",
1297                                                 __func__, pin->nid, port->id);
1298
1299                 /*
1300                  * PCMs are not registered during device probe, so don't
1301                  * report jack here. It will be done in usermode mux
1302                  * control select.
1303                  */
1304                 if (pcm) {
1305                         hdac_hdmi_jack_report(pcm, port, false);
1306                         schedule_work(&port->dapm_work);
1307                 }
1308
1309                 mutex_unlock(&hdmi->pin_mutex);
1310                 return;
1311         }
1312
1313         if (port->eld.monitor_present && port->eld.eld_valid) {
1314                 if (pcm) {
1315                         hdac_hdmi_jack_report(pcm, port, true);
1316                         schedule_work(&port->dapm_work);
1317                 }
1318
1319                 print_hex_dump_debug("ELD: ", DUMP_PREFIX_OFFSET, 16, 1,
1320                           port->eld.eld_buffer, port->eld.eld_size, false);
1321
1322         }
1323         mutex_unlock(&hdmi->pin_mutex);
1324 }
1325
1326 static int hdac_hdmi_add_ports(struct hdac_device *hdev,
1327                                struct hdac_hdmi_pin *pin)
1328 {
1329         struct hdac_hdmi_port *ports;
1330         int max_ports = HDA_MAX_PORTS;
1331         int i;
1332
1333         /*
1334          * FIXME: max_port may vary for each platform, so pass this as
1335          * as driver data or query from i915 interface when this API is
1336          * implemented.
1337          */
1338
1339         ports = devm_kcalloc(&hdev->dev, max_ports, sizeof(*ports), GFP_KERNEL);
1340         if (!ports)
1341                 return -ENOMEM;
1342
1343         for (i = 0; i < max_ports; i++) {
1344                 ports[i].id = i;
1345                 ports[i].pin = pin;
1346                 INIT_WORK(&ports[i].dapm_work, hdac_hdmi_jack_dapm_work);
1347         }
1348         pin->ports = ports;
1349         pin->num_ports = max_ports;
1350         return 0;
1351 }
1352
1353 static int hdac_hdmi_add_pin(struct hdac_device *hdev, hda_nid_t nid)
1354 {
1355         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1356         struct hdac_hdmi_pin *pin;
1357         int ret;
1358
1359         pin = devm_kzalloc(&hdev->dev, sizeof(*pin), GFP_KERNEL);
1360         if (!pin)
1361                 return -ENOMEM;
1362
1363         pin->nid = nid;
1364         pin->mst_capable = false;
1365         pin->hdev = hdev;
1366         ret = hdac_hdmi_add_ports(hdev, pin);
1367         if (ret < 0)
1368                 return ret;
1369
1370         list_add_tail(&pin->head, &hdmi->pin_list);
1371         hdmi->num_pin++;
1372         hdmi->num_ports += pin->num_ports;
1373
1374         return 0;
1375 }
1376
1377 #define INTEL_VENDOR_NID_0x2 0x02
1378 #define INTEL_VENDOR_NID_0x8 0x08
1379 #define INTEL_VENDOR_NID_0xb 0x0b
1380 #define INTEL_GET_VENDOR_VERB 0xf81
1381 #define INTEL_SET_VENDOR_VERB 0x781
1382 #define INTEL_EN_DP12           0x02 /* enable DP 1.2 features */
1383 #define INTEL_EN_ALL_PIN_CVTS   0x01 /* enable 2nd & 3rd pins and convertors */
1384
1385 static void hdac_hdmi_skl_enable_all_pins(struct hdac_device *hdev)
1386 {
1387         unsigned int vendor_param;
1388         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1389         unsigned int vendor_nid = hdmi->drv_data->vendor_nid;
1390
1391         vendor_param = snd_hdac_codec_read(hdev, vendor_nid, 0,
1392                                 INTEL_GET_VENDOR_VERB, 0);
1393         if (vendor_param == -1 || vendor_param & INTEL_EN_ALL_PIN_CVTS)
1394                 return;
1395
1396         vendor_param |= INTEL_EN_ALL_PIN_CVTS;
1397         vendor_param = snd_hdac_codec_read(hdev, vendor_nid, 0,
1398                                 INTEL_SET_VENDOR_VERB, vendor_param);
1399         if (vendor_param == -1)
1400                 return;
1401 }
1402
1403 static void hdac_hdmi_skl_enable_dp12(struct hdac_device *hdev)
1404 {
1405         unsigned int vendor_param;
1406         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1407         unsigned int vendor_nid = hdmi->drv_data->vendor_nid;
1408
1409         vendor_param = snd_hdac_codec_read(hdev, vendor_nid, 0,
1410                                 INTEL_GET_VENDOR_VERB, 0);
1411         if (vendor_param == -1 || vendor_param & INTEL_EN_DP12)
1412                 return;
1413
1414         /* enable DP1.2 mode */
1415         vendor_param |= INTEL_EN_DP12;
1416         vendor_param = snd_hdac_codec_read(hdev, vendor_nid, 0,
1417                                 INTEL_SET_VENDOR_VERB, vendor_param);
1418         if (vendor_param == -1)
1419                 return;
1420
1421 }
1422
1423 static const struct snd_soc_dai_ops hdmi_dai_ops = {
1424         .startup = hdac_hdmi_pcm_open,
1425         .shutdown = hdac_hdmi_pcm_close,
1426         .hw_params = hdac_hdmi_set_hw_params,
1427         .set_tdm_slot = hdac_hdmi_set_tdm_slot,
1428 };
1429
1430 /*
1431  * Each converter can support a stream independently. So a dai is created
1432  * based on the number of converter queried.
1433  */
1434 static int hdac_hdmi_create_dais(struct hdac_device *hdev,
1435                 struct snd_soc_dai_driver **dais,
1436                 struct hdac_hdmi_priv *hdmi, int num_dais)
1437 {
1438         struct snd_soc_dai_driver *hdmi_dais;
1439         struct hdac_hdmi_cvt *cvt;
1440         char name[NAME_SIZE], dai_name[NAME_SIZE];
1441         int i = 0;
1442         u32 rates, bps;
1443         unsigned int rate_max = 384000, rate_min = 8000;
1444         u64 formats;
1445         int ret;
1446
1447         hdmi_dais = devm_kzalloc(&hdev->dev,
1448                         (sizeof(*hdmi_dais) * num_dais),
1449                         GFP_KERNEL);
1450         if (!hdmi_dais)
1451                 return -ENOMEM;
1452
1453         list_for_each_entry(cvt, &hdmi->cvt_list, head) {
1454                 ret = snd_hdac_query_supported_pcm(hdev, cvt->nid,
1455                                         &rates, &formats, &bps);
1456                 if (ret)
1457                         return ret;
1458
1459                 /* Filter out 44.1, 88.2 and 176.4Khz */
1460                 rates &= ~(SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_88200 |
1461                            SNDRV_PCM_RATE_176400);
1462                 if (!rates)
1463                         return -EINVAL;
1464
1465                 sprintf(dai_name, "intel-hdmi-hifi%d", i+1);
1466                 hdmi_dais[i].name = devm_kstrdup(&hdev->dev,
1467                                         dai_name, GFP_KERNEL);
1468
1469                 if (!hdmi_dais[i].name)
1470                         return -ENOMEM;
1471
1472                 snprintf(name, sizeof(name), "hifi%d", i+1);
1473                 hdmi_dais[i].playback.stream_name =
1474                                 devm_kstrdup(&hdev->dev, name, GFP_KERNEL);
1475                 if (!hdmi_dais[i].playback.stream_name)
1476                         return -ENOMEM;
1477
1478                 /*
1479                  * Set caps based on capability queried from the converter.
1480                  * It will be constrained runtime based on ELD queried.
1481                  */
1482                 hdmi_dais[i].playback.formats = formats;
1483                 hdmi_dais[i].playback.rates = rates;
1484                 hdmi_dais[i].playback.rate_max = rate_max;
1485                 hdmi_dais[i].playback.rate_min = rate_min;
1486                 hdmi_dais[i].playback.channels_min = 2;
1487                 hdmi_dais[i].playback.channels_max = 2;
1488                 hdmi_dais[i].playback.sig_bits = bps;
1489                 hdmi_dais[i].ops = &hdmi_dai_ops;
1490                 i++;
1491         }
1492
1493         *dais = hdmi_dais;
1494         hdmi->dai_drv = hdmi_dais;
1495
1496         return 0;
1497 }
1498
1499 /*
1500  * Parse all nodes and store the cvt/pin nids in array
1501  * Add one time initialization for pin and cvt widgets
1502  */
1503 static int hdac_hdmi_parse_and_map_nid(struct hdac_device *hdev,
1504                 struct snd_soc_dai_driver **dais, int *num_dais)
1505 {
1506         hda_nid_t nid;
1507         int i, num_nodes;
1508         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1509         int ret;
1510
1511         hdac_hdmi_skl_enable_all_pins(hdev);
1512         hdac_hdmi_skl_enable_dp12(hdev);
1513
1514         num_nodes = snd_hdac_get_sub_nodes(hdev, hdev->afg, &nid);
1515         if (!nid || num_nodes <= 0) {
1516                 dev_warn(&hdev->dev, "HDMI: failed to get afg sub nodes\n");
1517                 return -EINVAL;
1518         }
1519
1520         for (i = 0; i < num_nodes; i++, nid++) {
1521                 unsigned int caps;
1522                 unsigned int type;
1523
1524                 caps = get_wcaps(hdev, nid);
1525                 type = get_wcaps_type(caps);
1526
1527                 if (!(caps & AC_WCAP_DIGITAL))
1528                         continue;
1529
1530                 switch (type) {
1531
1532                 case AC_WID_AUD_OUT:
1533                         ret = hdac_hdmi_add_cvt(hdev, nid);
1534                         if (ret < 0)
1535                                 return ret;
1536                         break;
1537
1538                 case AC_WID_PIN:
1539                         ret = hdac_hdmi_add_pin(hdev, nid);
1540                         if (ret < 0)
1541                                 return ret;
1542                         break;
1543                 }
1544         }
1545
1546         if (!hdmi->num_pin || !hdmi->num_cvt) {
1547                 ret = -EIO;
1548                 dev_err(&hdev->dev, "Bad pin/cvt setup in %s\n", __func__);
1549                 return ret;
1550         }
1551
1552         ret = hdac_hdmi_create_dais(hdev, dais, hdmi, hdmi->num_cvt);
1553         if (ret) {
1554                 dev_err(&hdev->dev, "Failed to create dais with err: %d\n",
1555                         ret);
1556                 return ret;
1557         }
1558
1559         *num_dais = hdmi->num_cvt;
1560         ret = hdac_hdmi_init_dai_map(hdev);
1561         if (ret < 0)
1562                 dev_err(&hdev->dev, "Failed to init DAI map with err: %d\n",
1563                         ret);
1564         return ret;
1565 }
1566
1567 static int hdac_hdmi_pin2port(void *aptr, int pin)
1568 {
1569         struct hdac_device *hdev = aptr;
1570         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1571         const int *map = hdmi->drv_data->port_map;
1572         int i;
1573
1574         if (!hdmi->drv_data->port_num)
1575                 return pin - 4; /* map NID 0x05 -> port #1 */
1576
1577         /*
1578          * looking for the pin number in the mapping table and return
1579          * the index which indicate the port number
1580          */
1581         for (i = 0; i < hdmi->drv_data->port_num; i++) {
1582                 if (pin == map[i])
1583                         return i + 1;
1584         }
1585
1586         /* return -1 if pin number exceeds our expectation */
1587         dev_err(&hdev->dev, "Can't find the port for pin %d\n", pin);
1588         return -1;
1589 }
1590
1591 static void hdac_hdmi_eld_notify_cb(void *aptr, int port, int pipe)
1592 {
1593         struct hdac_device *hdev = aptr;
1594         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1595         struct hdac_hdmi_pin *pin = NULL;
1596         struct hdac_hdmi_port *hport = NULL;
1597         struct snd_soc_component *component = hdmi->component;
1598         int i;
1599         hda_nid_t pin_nid;
1600
1601         if (!hdmi->drv_data->port_num) {
1602                 /* for legacy platforms */
1603                 pin_nid = port + 0x04;
1604         } else if (port < hdmi->drv_data->port_num) {
1605                 /* get pin number from the pin2port mapping table */
1606                 pin_nid = hdmi->drv_data->port_map[port - 1];
1607         } else {
1608                 dev_err(&hdev->dev, "Can't find the pin for port %d\n", port);
1609                 return;
1610         }
1611
1612         dev_dbg(&hdev->dev, "%s: for pin:%d port=%d\n", __func__,
1613                                                         pin_nid, pipe);
1614
1615         /*
1616          * skip notification during system suspend (but not in runtime PM);
1617          * the state will be updated at resume. Also since the ELD and
1618          * connection states are updated in anyway at the end of the resume,
1619          * we can skip it when received during PM process.
1620          */
1621         if (snd_power_get_state(component->card->snd_card) !=
1622                         SNDRV_CTL_POWER_D0)
1623                 return;
1624
1625         if (atomic_read(&hdev->in_pm))
1626                 return;
1627
1628         list_for_each_entry(pin, &hdmi->pin_list, head) {
1629                 if (pin->nid != pin_nid)
1630                         continue;
1631
1632                 /* In case of non MST pin, pipe is -1 */
1633                 if (pipe == -1) {
1634                         pin->mst_capable = false;
1635                         /* if not MST, default is port[0] */
1636                         hport = &pin->ports[0];
1637                 } else {
1638                         for (i = 0; i < pin->num_ports; i++) {
1639                                 pin->mst_capable = true;
1640                                 if (pin->ports[i].id == pipe) {
1641                                         hport = &pin->ports[i];
1642                                         break;
1643                                 }
1644                         }
1645                 }
1646
1647                 if (hport)
1648                         hdac_hdmi_present_sense(pin, hport);
1649         }
1650
1651 }
1652
1653 static struct drm_audio_component_audio_ops aops = {
1654         .pin2port       = hdac_hdmi_pin2port,
1655         .pin_eld_notify = hdac_hdmi_eld_notify_cb,
1656 };
1657
1658 static struct snd_pcm *hdac_hdmi_get_pcm_from_id(struct snd_soc_card *card,
1659                                                 int device)
1660 {
1661         struct snd_soc_pcm_runtime *rtd;
1662
1663         for_each_card_rtds(card, rtd) {
1664                 if (rtd->pcm && (rtd->pcm->device == device))
1665                         return rtd->pcm;
1666         }
1667
1668         return NULL;
1669 }
1670
1671 /* create jack pin kcontrols */
1672 static int create_fill_jack_kcontrols(struct snd_soc_card *card,
1673                                     struct hdac_device *hdev)
1674 {
1675         struct hdac_hdmi_pin *pin;
1676         struct snd_kcontrol_new *kc;
1677         char kc_name[NAME_SIZE], xname[NAME_SIZE];
1678         char *name;
1679         int i = 0, j;
1680         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1681         struct snd_soc_component *component = hdmi->component;
1682
1683         kc = devm_kcalloc(component->dev, hdmi->num_ports,
1684                                 sizeof(*kc), GFP_KERNEL);
1685
1686         if (!kc)
1687                 return -ENOMEM;
1688
1689         list_for_each_entry(pin, &hdmi->pin_list, head) {
1690                 for (j = 0; j < pin->num_ports; j++) {
1691                         snprintf(xname, sizeof(xname), "hif%d-%d Jack",
1692                                                 pin->nid, pin->ports[j].id);
1693                         name = devm_kstrdup(component->dev, xname, GFP_KERNEL);
1694                         if (!name)
1695                                 return -ENOMEM;
1696                         snprintf(kc_name, sizeof(kc_name), "%s Switch", xname);
1697                         kc[i].name = devm_kstrdup(component->dev, kc_name,
1698                                                         GFP_KERNEL);
1699                         if (!kc[i].name)
1700                                 return -ENOMEM;
1701
1702                         kc[i].private_value = (unsigned long)name;
1703                         kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1704                         kc[i].access = 0;
1705                         kc[i].info = snd_soc_dapm_info_pin_switch;
1706                         kc[i].put = snd_soc_dapm_put_pin_switch;
1707                         kc[i].get = snd_soc_dapm_get_pin_switch;
1708                         i++;
1709                 }
1710         }
1711
1712         return snd_soc_add_card_controls(card, kc, i);
1713 }
1714
1715 int hdac_hdmi_jack_port_init(struct snd_soc_component *component,
1716                         struct snd_soc_dapm_context *dapm)
1717 {
1718         struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component);
1719         struct hdac_device *hdev = hdmi->hdev;
1720         struct hdac_hdmi_pin *pin;
1721         struct snd_soc_dapm_widget *widgets;
1722         struct snd_soc_dapm_route *route;
1723         char w_name[NAME_SIZE];
1724         int i = 0, j, ret;
1725
1726         widgets = devm_kcalloc(dapm->dev, hdmi->num_ports,
1727                                 sizeof(*widgets), GFP_KERNEL);
1728
1729         if (!widgets)
1730                 return -ENOMEM;
1731
1732         route = devm_kcalloc(dapm->dev, hdmi->num_ports,
1733                                 sizeof(*route), GFP_KERNEL);
1734         if (!route)
1735                 return -ENOMEM;
1736
1737         /* create Jack DAPM widget */
1738         list_for_each_entry(pin, &hdmi->pin_list, head) {
1739                 for (j = 0; j < pin->num_ports; j++) {
1740                         snprintf(w_name, sizeof(w_name), "hif%d-%d Jack",
1741                                                 pin->nid, pin->ports[j].id);
1742
1743                         ret = hdac_hdmi_fill_widget_info(dapm->dev, &widgets[i],
1744                                         snd_soc_dapm_spk, NULL,
1745                                         w_name, NULL, NULL, 0, NULL, 0);
1746                         if (ret < 0)
1747                                 return ret;
1748
1749                         pin->ports[j].jack_pin = widgets[i].name;
1750                         pin->ports[j].dapm = dapm;
1751
1752                         /* add to route from Jack widget to output */
1753                         hdac_hdmi_fill_route(&route[i], pin->ports[j].jack_pin,
1754                                         NULL, pin->ports[j].output_pin, NULL);
1755
1756                         i++;
1757                 }
1758         }
1759
1760         /* Add Route from Jack widget to the output widget */
1761         ret = snd_soc_dapm_new_controls(dapm, widgets, hdmi->num_ports);
1762         if (ret < 0)
1763                 return ret;
1764
1765         ret = snd_soc_dapm_add_routes(dapm, route, hdmi->num_ports);
1766         if (ret < 0)
1767                 return ret;
1768
1769         ret = snd_soc_dapm_new_widgets(dapm->card);
1770         if (ret < 0)
1771                 return ret;
1772
1773         /* Add Jack Pin switch Kcontrol */
1774         ret = create_fill_jack_kcontrols(dapm->card, hdev);
1775
1776         if (ret < 0)
1777                 return ret;
1778
1779         /* default set the Jack Pin switch to OFF */
1780         list_for_each_entry(pin, &hdmi->pin_list, head) {
1781                 for (j = 0; j < pin->num_ports; j++)
1782                         snd_soc_dapm_disable_pin(pin->ports[j].dapm,
1783                                                 pin->ports[j].jack_pin);
1784         }
1785
1786         return 0;
1787 }
1788 EXPORT_SYMBOL_GPL(hdac_hdmi_jack_port_init);
1789
1790 int hdac_hdmi_jack_init(struct snd_soc_dai *dai, int device,
1791                                 struct snd_soc_jack *jack)
1792 {
1793         struct snd_soc_component *component = dai->component;
1794         struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component);
1795         struct hdac_device *hdev = hdmi->hdev;
1796         struct hdac_hdmi_pcm *pcm;
1797         struct snd_pcm *snd_pcm;
1798         int err;
1799
1800         /*
1801          * this is a new PCM device, create new pcm and
1802          * add to the pcm list
1803          */
1804         pcm = devm_kzalloc(&hdev->dev, sizeof(*pcm), GFP_KERNEL);
1805         if (!pcm)
1806                 return -ENOMEM;
1807         pcm->pcm_id = device;
1808         pcm->cvt = hdmi->dai_map[dai->id].cvt;
1809         pcm->jack_event = 0;
1810         pcm->jack = jack;
1811         mutex_init(&pcm->lock);
1812         INIT_LIST_HEAD(&pcm->port_list);
1813         snd_pcm = hdac_hdmi_get_pcm_from_id(dai->component->card, device);
1814         if (snd_pcm) {
1815                 err = snd_hdac_add_chmap_ctls(snd_pcm, device, &hdmi->chmap);
1816                 if (err < 0) {
1817                         dev_err(&hdev->dev,
1818                                 "chmap control add failed with err: %d for pcm: %d\n",
1819                                 err, device);
1820                         return err;
1821                 }
1822         }
1823
1824         list_add_tail(&pcm->head, &hdmi->pcm_list);
1825
1826         return 0;
1827 }
1828 EXPORT_SYMBOL_GPL(hdac_hdmi_jack_init);
1829
1830 static void hdac_hdmi_present_sense_all_pins(struct hdac_device *hdev,
1831                         struct hdac_hdmi_priv *hdmi, bool detect_pin_caps)
1832 {
1833         int i;
1834         struct hdac_hdmi_pin *pin;
1835
1836         list_for_each_entry(pin, &hdmi->pin_list, head) {
1837                 if (detect_pin_caps) {
1838
1839                         if (hdac_hdmi_get_port_len(hdev, pin->nid)  == 0)
1840                                 pin->mst_capable = false;
1841                         else
1842                                 pin->mst_capable = true;
1843                 }
1844
1845                 for (i = 0; i < pin->num_ports; i++) {
1846                         if (!pin->mst_capable && i > 0)
1847                                 continue;
1848
1849                         hdac_hdmi_present_sense(pin, &pin->ports[i]);
1850                 }
1851         }
1852 }
1853
1854 static int hdmi_codec_probe(struct snd_soc_component *component)
1855 {
1856         struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component);
1857         struct hdac_device *hdev = hdmi->hdev;
1858         struct snd_soc_dapm_context *dapm =
1859                 snd_soc_component_get_dapm(component);
1860         struct hdac_ext_link *hlink = NULL;
1861         int ret;
1862
1863         hdmi->component = component;
1864
1865         /*
1866          * hold the ref while we probe, also no need to drop the ref on
1867          * exit, we call pm_runtime_suspend() so that will do for us
1868          */
1869         hlink = snd_hdac_ext_bus_get_link(hdev->bus, dev_name(&hdev->dev));
1870         if (!hlink) {
1871                 dev_err(&hdev->dev, "hdac link not found\n");
1872                 return -EIO;
1873         }
1874
1875         snd_hdac_ext_bus_link_get(hdev->bus, hlink);
1876
1877         ret = create_fill_widget_route_map(dapm);
1878         if (ret < 0)
1879                 return ret;
1880
1881         aops.audio_ptr = hdev;
1882         ret = snd_hdac_acomp_register_notifier(hdev->bus, &aops);
1883         if (ret < 0) {
1884                 dev_err(&hdev->dev, "notifier register failed: err: %d\n", ret);
1885                 return ret;
1886         }
1887
1888         hdac_hdmi_present_sense_all_pins(hdev, hdmi, true);
1889         /* Imp: Store the card pointer in hda_codec */
1890         hdmi->card = dapm->card->snd_card;
1891
1892         /*
1893          * Setup a device_link between card device and HDMI codec device.
1894          * The card device is the consumer and the HDMI codec device is
1895          * the supplier. With this setting, we can make sure that the audio
1896          * domain in display power will be always turned on before operating
1897          * on the HDMI audio codec registers.
1898          * Let's use the flag DL_FLAG_AUTOREMOVE_CONSUMER. This can make
1899          * sure the device link is freed when the machine driver is removed.
1900          */
1901         device_link_add(component->card->dev, &hdev->dev, DL_FLAG_RPM_ACTIVE |
1902                         DL_FLAG_AUTOREMOVE_CONSUMER);
1903         /*
1904          * hdac_device core already sets the state to active and calls
1905          * get_noresume. So enable runtime and set the device to suspend.
1906          */
1907         pm_runtime_enable(&hdev->dev);
1908         pm_runtime_put(&hdev->dev);
1909         pm_runtime_suspend(&hdev->dev);
1910
1911         return 0;
1912 }
1913
1914 static void hdmi_codec_remove(struct snd_soc_component *component)
1915 {
1916         struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component);
1917         struct hdac_device *hdev = hdmi->hdev;
1918         int ret;
1919
1920         ret = snd_hdac_acomp_register_notifier(hdev->bus, NULL);
1921         if (ret < 0)
1922                 dev_err(&hdev->dev, "notifier unregister failed: err: %d\n",
1923                                 ret);
1924
1925         pm_runtime_disable(&hdev->dev);
1926 }
1927
1928 #ifdef CONFIG_PM_SLEEP
1929 static int hdmi_codec_resume(struct device *dev)
1930 {
1931         struct hdac_device *hdev = dev_to_hdac_dev(dev);
1932         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1933         int ret;
1934
1935         ret = pm_runtime_force_resume(dev);
1936         if (ret < 0)
1937                 return ret;
1938         /*
1939          * As the ELD notify callback request is not entertained while the
1940          * device is in suspend state. Need to manually check detection of
1941          * all pins here. pin capablity change is not support, so use the
1942          * already set pin caps.
1943          *
1944          * NOTE: this is safe to call even if the codec doesn't actually resume.
1945          * The pin check involves only with DRM audio component hooks, so it
1946          * works even if the HD-audio side is still dreaming peacefully.
1947          */
1948         hdac_hdmi_present_sense_all_pins(hdev, hdmi, false);
1949         return 0;
1950 }
1951 #else
1952 #define hdmi_codec_resume NULL
1953 #endif
1954
1955 static const struct snd_soc_component_driver hdmi_hda_codec = {
1956         .probe                  = hdmi_codec_probe,
1957         .remove                 = hdmi_codec_remove,
1958         .use_pmdown_time        = 1,
1959         .endianness             = 1,
1960         .non_legacy_dai_naming  = 1,
1961 };
1962
1963 static void hdac_hdmi_get_chmap(struct hdac_device *hdev, int pcm_idx,
1964                                         unsigned char *chmap)
1965 {
1966         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1967         struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
1968
1969         memcpy(chmap, pcm->chmap, ARRAY_SIZE(pcm->chmap));
1970 }
1971
1972 static void hdac_hdmi_set_chmap(struct hdac_device *hdev, int pcm_idx,
1973                                 unsigned char *chmap, int prepared)
1974 {
1975         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1976         struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
1977         struct hdac_hdmi_port *port;
1978
1979         if (!pcm)
1980                 return;
1981
1982         if (list_empty(&pcm->port_list))
1983                 return;
1984
1985         mutex_lock(&pcm->lock);
1986         pcm->chmap_set = true;
1987         memcpy(pcm->chmap, chmap, ARRAY_SIZE(pcm->chmap));
1988         list_for_each_entry(port, &pcm->port_list, head)
1989                 if (prepared)
1990                         hdac_hdmi_setup_audio_infoframe(hdev, pcm, port);
1991         mutex_unlock(&pcm->lock);
1992 }
1993
1994 static bool is_hdac_hdmi_pcm_attached(struct hdac_device *hdev, int pcm_idx)
1995 {
1996         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1997         struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
1998
1999         if (!pcm)
2000                 return false;
2001
2002         if (list_empty(&pcm->port_list))
2003                 return false;
2004
2005         return true;
2006 }
2007
2008 static int hdac_hdmi_get_spk_alloc(struct hdac_device *hdev, int pcm_idx)
2009 {
2010         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
2011         struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
2012         struct hdac_hdmi_port *port;
2013
2014         if (!pcm)
2015                 return 0;
2016
2017         if (list_empty(&pcm->port_list))
2018                 return 0;
2019
2020         port = list_first_entry(&pcm->port_list, struct hdac_hdmi_port, head);
2021
2022         if (!port || !port->eld.eld_valid)
2023                 return 0;
2024
2025         return port->eld.info.spk_alloc;
2026 }
2027
2028 static struct hdac_hdmi_drv_data intel_icl_drv_data  = {
2029         .vendor_nid = INTEL_VENDOR_NID_0x2,
2030         .port_map = icl_pin2port_map,
2031         .port_num = ARRAY_SIZE(icl_pin2port_map),
2032 };
2033
2034 static struct hdac_hdmi_drv_data intel_glk_drv_data  = {
2035         .vendor_nid = INTEL_VENDOR_NID_0xb,
2036 };
2037
2038 static struct hdac_hdmi_drv_data intel_drv_data  = {
2039         .vendor_nid = INTEL_VENDOR_NID_0x8,
2040 };
2041
2042 static int hdac_hdmi_dev_probe(struct hdac_device *hdev)
2043 {
2044         struct hdac_hdmi_priv *hdmi_priv = NULL;
2045         struct snd_soc_dai_driver *hdmi_dais = NULL;
2046         struct hdac_ext_link *hlink = NULL;
2047         int num_dais = 0;
2048         int ret = 0;
2049         struct hdac_driver *hdrv = drv_to_hdac_driver(hdev->dev.driver);
2050         const struct hda_device_id *hdac_id = hdac_get_device_id(hdev, hdrv);
2051
2052         /* hold the ref while we probe */
2053         hlink = snd_hdac_ext_bus_get_link(hdev->bus, dev_name(&hdev->dev));
2054         if (!hlink) {
2055                 dev_err(&hdev->dev, "hdac link not found\n");
2056                 return -EIO;
2057         }
2058
2059         snd_hdac_ext_bus_link_get(hdev->bus, hlink);
2060
2061         hdmi_priv = devm_kzalloc(&hdev->dev, sizeof(*hdmi_priv), GFP_KERNEL);
2062         if (hdmi_priv == NULL)
2063                 return -ENOMEM;
2064
2065         snd_hdac_register_chmap_ops(hdev, &hdmi_priv->chmap);
2066         hdmi_priv->chmap.ops.get_chmap = hdac_hdmi_get_chmap;
2067         hdmi_priv->chmap.ops.set_chmap = hdac_hdmi_set_chmap;
2068         hdmi_priv->chmap.ops.is_pcm_attached = is_hdac_hdmi_pcm_attached;
2069         hdmi_priv->chmap.ops.get_spk_alloc = hdac_hdmi_get_spk_alloc;
2070         hdmi_priv->hdev = hdev;
2071
2072         if (!hdac_id)
2073                 return -ENODEV;
2074
2075         if (hdac_id->driver_data)
2076                 hdmi_priv->drv_data =
2077                         (struct hdac_hdmi_drv_data *)hdac_id->driver_data;
2078         else
2079                 hdmi_priv->drv_data = &intel_drv_data;
2080
2081         dev_set_drvdata(&hdev->dev, hdmi_priv);
2082
2083         INIT_LIST_HEAD(&hdmi_priv->pin_list);
2084         INIT_LIST_HEAD(&hdmi_priv->cvt_list);
2085         INIT_LIST_HEAD(&hdmi_priv->pcm_list);
2086         mutex_init(&hdmi_priv->pin_mutex);
2087
2088         /*
2089          * Turned off in the runtime_suspend during the first explicit
2090          * pm_runtime_suspend call.
2091          */
2092         snd_hdac_display_power(hdev->bus, hdev->addr, true);
2093
2094         ret = hdac_hdmi_parse_and_map_nid(hdev, &hdmi_dais, &num_dais);
2095         if (ret < 0) {
2096                 dev_err(&hdev->dev,
2097                         "Failed in parse and map nid with err: %d\n", ret);
2098                 return ret;
2099         }
2100         snd_hdac_refresh_widgets(hdev);
2101
2102         /* ASoC specific initialization */
2103         ret = devm_snd_soc_register_component(&hdev->dev, &hdmi_hda_codec,
2104                                         hdmi_dais, num_dais);
2105
2106         snd_hdac_ext_bus_link_put(hdev->bus, hlink);
2107
2108         return ret;
2109 }
2110
2111 static void clear_dapm_works(struct hdac_device *hdev)
2112 {
2113         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
2114         struct hdac_hdmi_pin *pin;
2115         int i;
2116
2117         list_for_each_entry(pin, &hdmi->pin_list, head)
2118                 for (i = 0; i < pin->num_ports; i++)
2119                         cancel_work_sync(&pin->ports[i].dapm_work);
2120 }
2121
2122 static int hdac_hdmi_dev_remove(struct hdac_device *hdev)
2123 {
2124         clear_dapm_works(hdev);
2125         snd_hdac_display_power(hdev->bus, hdev->addr, false);
2126
2127         return 0;
2128 }
2129
2130 #ifdef CONFIG_PM
2131 static int hdac_hdmi_runtime_suspend(struct device *dev)
2132 {
2133         struct hdac_device *hdev = dev_to_hdac_dev(dev);
2134         struct hdac_bus *bus = hdev->bus;
2135         struct hdac_ext_link *hlink = NULL;
2136
2137         dev_dbg(dev, "Enter: %s\n", __func__);
2138
2139         /* controller may not have been initialized for the first time */
2140         if (!bus)
2141                 return 0;
2142
2143         clear_dapm_works(hdev);
2144
2145         /*
2146          * Power down afg.
2147          * codec_read is preferred over codec_write to set the power state.
2148          * This way verb is send to set the power state and response
2149          * is received. So setting power state is ensured without using loop
2150          * to read the state.
2151          */
2152         snd_hdac_codec_read(hdev, hdev->afg, 0, AC_VERB_SET_POWER_STATE,
2153                                                         AC_PWRST_D3);
2154
2155         hlink = snd_hdac_ext_bus_get_link(bus, dev_name(dev));
2156         if (!hlink) {
2157                 dev_err(dev, "hdac link not found\n");
2158                 return -EIO;
2159         }
2160
2161         snd_hdac_codec_link_down(hdev);
2162         snd_hdac_ext_bus_link_put(bus, hlink);
2163
2164         snd_hdac_display_power(bus, hdev->addr, false);
2165
2166         return 0;
2167 }
2168
2169 static int hdac_hdmi_runtime_resume(struct device *dev)
2170 {
2171         struct hdac_device *hdev = dev_to_hdac_dev(dev);
2172         struct hdac_bus *bus = hdev->bus;
2173         struct hdac_ext_link *hlink = NULL;
2174
2175         dev_dbg(dev, "Enter: %s\n", __func__);
2176
2177         /* controller may not have been initialized for the first time */
2178         if (!bus)
2179                 return 0;
2180
2181         hlink = snd_hdac_ext_bus_get_link(bus, dev_name(dev));
2182         if (!hlink) {
2183                 dev_err(dev, "hdac link not found\n");
2184                 return -EIO;
2185         }
2186
2187         snd_hdac_ext_bus_link_get(bus, hlink);
2188         snd_hdac_codec_link_up(hdev);
2189
2190         snd_hdac_display_power(bus, hdev->addr, true);
2191
2192         hdac_hdmi_skl_enable_all_pins(hdev);
2193         hdac_hdmi_skl_enable_dp12(hdev);
2194
2195         /* Power up afg */
2196         snd_hdac_codec_read(hdev, hdev->afg, 0, AC_VERB_SET_POWER_STATE,
2197                                                         AC_PWRST_D0);
2198
2199         return 0;
2200 }
2201 #else
2202 #define hdac_hdmi_runtime_suspend NULL
2203 #define hdac_hdmi_runtime_resume NULL
2204 #endif
2205
2206 static const struct dev_pm_ops hdac_hdmi_pm = {
2207         SET_RUNTIME_PM_OPS(hdac_hdmi_runtime_suspend, hdac_hdmi_runtime_resume, NULL)
2208         SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, hdmi_codec_resume)
2209 };
2210
2211 static const struct hda_device_id hdmi_list[] = {
2212         HDA_CODEC_EXT_ENTRY(0x80862809, 0x100000, "Skylake HDMI", 0),
2213         HDA_CODEC_EXT_ENTRY(0x8086280a, 0x100000, "Broxton HDMI", 0),
2214         HDA_CODEC_EXT_ENTRY(0x8086280b, 0x100000, "Kabylake HDMI", 0),
2215         HDA_CODEC_EXT_ENTRY(0x8086280c, 0x100000, "Cannonlake HDMI",
2216                                                    &intel_glk_drv_data),
2217         HDA_CODEC_EXT_ENTRY(0x8086280d, 0x100000, "Geminilake HDMI",
2218                                                    &intel_glk_drv_data),
2219         HDA_CODEC_EXT_ENTRY(0x8086280f, 0x100000, "Icelake HDMI",
2220                                                    &intel_icl_drv_data),
2221         {}
2222 };
2223
2224 MODULE_DEVICE_TABLE(hdaudio, hdmi_list);
2225
2226 static struct hdac_driver hdmi_driver = {
2227         .driver = {
2228                 .name   = "HDMI HDA Codec",
2229                 .pm = &hdac_hdmi_pm,
2230         },
2231         .id_table       = hdmi_list,
2232         .probe          = hdac_hdmi_dev_probe,
2233         .remove         = hdac_hdmi_dev_remove,
2234 };
2235
2236 static int __init hdmi_init(void)
2237 {
2238         return snd_hda_ext_driver_register(&hdmi_driver);
2239 }
2240
2241 static void __exit hdmi_exit(void)
2242 {
2243         snd_hda_ext_driver_unregister(&hdmi_driver);
2244 }
2245
2246 module_init(hdmi_init);
2247 module_exit(hdmi_exit);
2248
2249 MODULE_LICENSE("GPL v2");
2250 MODULE_DESCRIPTION("HDMI HD codec");
2251 MODULE_AUTHOR("Samreen Nilofer<samreen.nilofer@intel.com>");
2252 MODULE_AUTHOR("Subhransu S. Prusty<subhransu.s.prusty@intel.com>");