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 <[email protected]>
   7  *          Subhransu S. Prusty <[email protected]>
   8  *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   9  *
  10  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  11  */
  12
  13 #include <linux/init.h>
  14 #include <linux/delay.h>
  15 #include <linux/module.h>
  16 #include <linux/pm_runtime.h>
  17 #include <linux/hdmi.h>
  18 #include <drm/drm_edid.h>
  19 #include <drm/drm_eld.h>
  20 #include <sound/pcm_params.h>
  21 #include <sound/jack.h>
  22 #include <sound/soc.h>
  23 #include <sound/hdaudio_ext.h>
  24 #include <sound/hda_i915.h>
  25 #include <sound/pcm_drm_eld.h>
  26 #include <sound/hda_chmap.h>
  27 #include "../../hda/local.h"
  28 #include "hdac_hdmi.h"
  29
  30 #define NAME_SIZE       32
  31
  32 #define AMP_OUT_MUTE            0xb080
  33 #define AMP_OUT_UNMUTE          0xb000
  34 #define PIN_OUT                 (AC_PINCTL_OUT_EN)
  35
  36 #define HDA_MAX_CONNECTIONS     32
  37
  38 #define HDA_MAX_CVTS            3
  39 #define HDA_MAX_PORTS           3
  40
  41 #define ELD_MAX_SIZE    256
  42 #define ELD_FIXED_BYTES 20
  43
  44 #define ELD_VER_CEA_861D 2
  45 #define ELD_VER_PARTIAL 31
  46 #define ELD_MAX_MNL     16
  47
  48 struct hdac_hdmi_cvt_params {
  49         unsigned int channels_min;
  50         unsigned int channels_max;
  51         u32 rates;
  52         u64 formats;
  53         unsigned int maxbps;
  54 };
  55
  56 struct hdac_hdmi_cvt {
  57         struct list_head head;
  58         hda_nid_t nid;
  59         const char *name;
  60         struct hdac_hdmi_cvt_params params;
  61 };
  62
  63 /* Currently only spk_alloc, more to be added */
  64 struct hdac_hdmi_parsed_eld {
  65         u8 spk_alloc;
  66 };
  67
  68 struct hdac_hdmi_eld {
  69         bool    monitor_present;
  70         bool    eld_valid;
  71         int     eld_size;
  72         char    eld_buffer[ELD_MAX_SIZE];
  73         struct  hdac_hdmi_parsed_eld info;
  74 };
  75
  76 struct hdac_hdmi_pin {
  77         struct list_head head;
  78         hda_nid_t nid;
  79         bool mst_capable;
  80         struct hdac_hdmi_port *ports;
  81         int num_ports;
  82         struct hdac_device *hdev;
  83 };
  84
  85 struct hdac_hdmi_port {
  86         struct list_head head;
  87         int id;
  88         struct hdac_hdmi_pin *pin;
  89         int num_mux_nids;
  90         hda_nid_t mux_nids[HDA_MAX_CONNECTIONS];
  91         struct hdac_hdmi_eld eld;
  92         const char *jack_pin;
  93         bool is_connect;
  94         struct snd_soc_dapm_context *dapm;
  95         const char *output_pin;
  96         struct work_struct dapm_work;
  97 };
  98
  99 struct hdac_hdmi_pcm {
 100         struct list_head head;
 101         int pcm_id;
 102         struct list_head port_list;
 103         struct hdac_hdmi_cvt *cvt;
 104         struct snd_soc_jack *jack;
 105         int stream_tag;
 106         int channels;
 107         int format;
 108         bool chmap_set;
 109         unsigned char chmap[8]; /* ALSA API channel-map */
 110         struct mutex lock;
 111         int jack_event;
 112         struct snd_kcontrol *eld_ctl;
 113 };
 114
 115 struct hdac_hdmi_dai_port_map {
 116         int dai_id;
 117         struct hdac_hdmi_port *port;
 118         struct hdac_hdmi_cvt *cvt;
 119 };
 120
 121 struct hdac_hdmi_drv_data {
 122         unsigned int vendor_nid;
 123 };
 124
 125 struct hdac_hdmi_priv {
 126         struct hdac_device *hdev;
 127         struct snd_soc_component *component;
 128         struct snd_card *card;
 129         struct hdac_hdmi_dai_port_map dai_map[HDA_MAX_CVTS];
 130         struct list_head pin_list;
 131         struct list_head cvt_list;
 132         struct list_head pcm_list;
 133         int num_pin;
 134         int num_cvt;
 135         int num_ports;
 136         struct mutex pin_mutex;
 137         struct hdac_chmap chmap;
 138         struct hdac_hdmi_drv_data *drv_data;
 139         struct snd_soc_dai_driver *dai_drv;
 140 };
 141
 142 #define hdev_to_hdmi_priv(_hdev) dev_get_drvdata(&(_hdev)->dev)
 143
 144 static struct hdac_hdmi_pcm *
 145 hdac_hdmi_get_pcm_from_cvt(struct hdac_hdmi_priv *hdmi,
 146                            struct hdac_hdmi_cvt *cvt)
 147 {
 148         struct hdac_hdmi_pcm *pcm;
 149
 150         list_for_each_entry(pcm, &hdmi->pcm_list, head) {
 151                 if (pcm->cvt == cvt)
 152                         return pcm;
 153         }
 154
 155         return NULL;
 156 }
 157
 158 static void hdac_hdmi_jack_report(struct hdac_hdmi_pcm *pcm,
 159                 struct hdac_hdmi_port *port, bool is_connect)
 160 {
 161         struct hdac_device *hdev = port->pin->hdev;
 162
 163         port->is_connect = is_connect;
 164         if (is_connect) {
 165                 /*
 166                  * Report Jack connect event when a device is connected
 167                  * for the first time where same PCM is attached to multiple
 168                  * ports.
 169                  */
 170                 if (pcm->jack_event == 0) {
 171                         dev_dbg(&hdev->dev,
 172                                         "jack report for pcm=%d\n",
 173                                         pcm->pcm_id);
 174                         snd_soc_jack_report(pcm->jack, SND_JACK_AVOUT,
 175                                                 SND_JACK_AVOUT);
 176                 }
 177                 pcm->jack_event++;
 178         } else {
 179                 /*
 180                  * Report Jack disconnect event when a device is disconnected
 181                  * is the only last connected device when same PCM is attached
 182                  * to multiple ports.
 183                  */
 184                 if (pcm->jack_event == 1)
 185                         snd_soc_jack_report(pcm->jack, 0, SND_JACK_AVOUT);
 186                 if (pcm->jack_event > 0)
 187                         pcm->jack_event--;
 188         }
 189 }
 190
 191 static void hdac_hdmi_port_dapm_update(struct hdac_hdmi_port *port)
 192 {
 193         if (port->is_connect)
 194                 snd_soc_dapm_enable_pin(port->dapm, port->jack_pin);
 195         else
 196                 snd_soc_dapm_disable_pin(port->dapm, port->jack_pin);
 197         snd_soc_dapm_sync(port->dapm);
 198 }
 199
 200 static void hdac_hdmi_jack_dapm_work(struct work_struct *work)
 201 {
 202         struct hdac_hdmi_port *port;
 203
 204         port = container_of(work, struct hdac_hdmi_port, dapm_work);
 205         hdac_hdmi_port_dapm_update(port);
 206 }
 207
 208 static void hdac_hdmi_jack_report_sync(struct hdac_hdmi_pcm *pcm,
 209                 struct hdac_hdmi_port *port, bool is_connect)
 210 {
 211         hdac_hdmi_jack_report(pcm, port, is_connect);
 212         hdac_hdmi_port_dapm_update(port);
 213 }
 214
 215 /* MST supported verbs */
 216 /*
 217  * Get the no devices that can be connected to a port on the Pin widget.
 218  */
 219 static int hdac_hdmi_get_port_len(struct hdac_device *hdev, hda_nid_t nid)
 220 {
 221         unsigned int caps;
 222         unsigned int type, param;
 223
 224         caps = get_wcaps(hdev, nid);
 225         type = get_wcaps_type(caps);
 226
 227         if (!(caps & AC_WCAP_DIGITAL) || (type != AC_WID_PIN))
 228                 return 0;
 229
 230         param = snd_hdac_read_parm_uncached(hdev, nid, AC_PAR_DEVLIST_LEN);
 231         if (param == -1)
 232                 return param;
 233
 234         return param & AC_DEV_LIST_LEN_MASK;
 235 }
 236
 237 /*
 238  * Get the port entry select on the pin. Return the port entry
 239  * id selected on the pin. Return 0 means the first port entry
 240  * is selected or MST is not supported.
 241  */
 242 static int hdac_hdmi_port_select_get(struct hdac_device *hdev,
 243                                         struct hdac_hdmi_port *port)
 244 {
 245         return snd_hdac_codec_read(hdev, port->pin->nid,
 246                                 0, AC_VERB_GET_DEVICE_SEL, 0);
 247 }
 248
 249 /*
 250  * Sets the selected port entry for the configuring Pin widget verb.
 251  * returns error if port set is not equal to port get otherwise success
 252  */
 253 static int hdac_hdmi_port_select_set(struct hdac_device *hdev,
 254                                         struct hdac_hdmi_port *port)
 255 {
 256         int num_ports;
 257
 258         if (!port->pin->mst_capable)
 259                 return 0;
 260
 261         /* AC_PAR_DEVLIST_LEN is 0 based. */
 262         num_ports = hdac_hdmi_get_port_len(hdev, port->pin->nid);
 263         if (num_ports < 0)
 264                 return -EIO;
 265         /*
 266          * Device List Length is a 0 based integer value indicating the
 267          * number of sink device that a MST Pin Widget can support.
 268          */
 269         if (num_ports + 1  < port->id)
 270                 return 0;
 271
 272         snd_hdac_codec_write(hdev, port->pin->nid, 0,
 273                         AC_VERB_SET_DEVICE_SEL, port->id);
 274
 275         if (port->id != hdac_hdmi_port_select_get(hdev, port))
 276                 return -EIO;
 277
 278         dev_dbg(&hdev->dev, "Selected the port=%d\n", port->id);
 279
 280         return 0;
 281 }
 282
 283 static struct hdac_hdmi_pcm *get_hdmi_pcm_from_id(struct hdac_hdmi_priv *hdmi,
 284                                                 int pcm_idx)
 285 {
 286         struct hdac_hdmi_pcm *pcm;
 287
 288         list_for_each_entry(pcm, &hdmi->pcm_list, head) {
 289                 if (pcm->pcm_id == pcm_idx)
 290                         return pcm;
 291         }
 292
 293         return NULL;
 294 }
 295
 296 static unsigned int sad_format(const u8 *sad)
 297 {
 298         return ((sad[0] >> 0x3) & 0x1f);
 299 }
 300
 301 static unsigned int sad_sample_bits_lpcm(const u8 *sad)
 302 {
 303         return (sad[2] & 7);
 304 }
 305
 306 static int hdac_hdmi_eld_limit_formats(struct snd_pcm_runtime *runtime,
 307                                                 void *eld)
 308 {
 309         u64 formats = SNDRV_PCM_FMTBIT_S16;
 310         int i;
 311         const u8 *sad, *eld_buf = eld;
 312
 313         sad = drm_eld_sad(eld_buf);
 314         if (!sad)
 315                 goto format_constraint;
 316
 317         for (i = drm_eld_sad_count(eld_buf); i > 0; i--, sad += 3) {
 318                 if (sad_format(sad) == 1) { /* AUDIO_CODING_TYPE_LPCM */
 319
 320                         /*
 321                          * the controller support 20 and 24 bits in 32 bit
 322                          * container so we set S32
 323                          */
 324                         if (sad_sample_bits_lpcm(sad) & 0x6)
 325                                 formats |= SNDRV_PCM_FMTBIT_S32;
 326                 }
 327         }
 328
 329 format_constraint:
 330         return snd_pcm_hw_constraint_mask64(runtime, SNDRV_PCM_HW_PARAM_FORMAT,
 331                                 formats);
 332
 333 }
 334
 335 static void
 336 hdac_hdmi_set_dip_index(struct hdac_device *hdev, hda_nid_t pin_nid,
 337                                 int packet_index, int byte_index)
 338 {
 339         int val;
 340
 341         val = (packet_index << 5) | (byte_index & 0x1f);
 342         snd_hdac_codec_write(hdev, pin_nid, 0, AC_VERB_SET_HDMI_DIP_INDEX, val);
 343 }
 344
 345 struct dp_audio_infoframe {
 346         u8 type; /* 0x84 */
 347         u8 len;  /* 0x1b */
 348         u8 ver;  /* 0x11 << 2 */
 349
 350         u8 CC02_CT47;   /* match with HDMI infoframe from this on */
 351         u8 SS01_SF24;
 352         u8 CXT04;
 353         u8 CA;
 354         u8 LFEPBL01_LSV36_DM_INH7;
 355 };
 356
 357 static int hdac_hdmi_setup_audio_infoframe(struct hdac_device *hdev,
 358                    struct hdac_hdmi_pcm *pcm, struct hdac_hdmi_port *port)
 359 {
 360         uint8_t buffer[HDMI_INFOFRAME_HEADER_SIZE + HDMI_AUDIO_INFOFRAME_SIZE];
 361         struct hdmi_audio_infoframe frame;
 362         struct hdac_hdmi_pin *pin = port->pin;
 363         struct dp_audio_infoframe dp_ai;
 364         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
 365         struct hdac_hdmi_cvt *cvt = pcm->cvt;
 366         u8 *dip;
 367         int ret;
 368         int i;
 369         const u8 *eld_buf;
 370         u8 conn_type;
 371         int channels, ca;
 372
 373         ca = snd_hdac_channel_allocation(hdev, port->eld.info.spk_alloc,
 374                         pcm->channels, pcm->chmap_set, true, pcm->chmap);
 375
 376         channels = snd_hdac_get_active_channels(ca);
 377         hdmi->chmap.ops.set_channel_count(hdev, cvt->nid, channels);
 378
 379         snd_hdac_setup_channel_mapping(&hdmi->chmap, pin->nid, false, ca,
 380                                 pcm->channels, pcm->chmap, pcm->chmap_set);
 381
 382         eld_buf = port->eld.eld_buffer;
 383         conn_type = drm_eld_get_conn_type(eld_buf);
 384
 385         switch (conn_type) {
 386         case DRM_ELD_CONN_TYPE_HDMI:
 387                 hdmi_audio_infoframe_init(&frame);
 388
 389                 frame.channels = channels;
 390                 frame.channel_allocation = ca;
 391
 392                 ret = hdmi_audio_infoframe_pack(&frame, buffer, sizeof(buffer));
 393                 if (ret < 0)
 394                         return ret;
 395
 396                 break;
 397
 398         case DRM_ELD_CONN_TYPE_DP:
 399                 memset(&dp_ai, 0, sizeof(dp_ai));
 400                 dp_ai.type      = 0x84;
 401                 dp_ai.len       = 0x1b;
 402                 dp_ai.ver       = 0x11 << 2;
 403                 dp_ai.CC02_CT47 = channels - 1;
 404                 dp_ai.CA        = ca;
 405
 406                 dip = (u8 *)&dp_ai;
 407                 break;
 408
 409         default:
 410                 dev_err(&hdev->dev, "Invalid connection type: %d\n", conn_type);
 411                 return -EIO;
 412         }
 413
 414         /* stop infoframe transmission */
 415         hdac_hdmi_set_dip_index(hdev, pin->nid, 0x0, 0x0);
 416         snd_hdac_codec_write(hdev, pin->nid, 0,
 417                         AC_VERB_SET_HDMI_DIP_XMIT, AC_DIPXMIT_DISABLE);
 418
 419
 420         /*  Fill infoframe. Index auto-incremented */
 421         hdac_hdmi_set_dip_index(hdev, pin->nid, 0x0, 0x0);
 422         if (conn_type == DRM_ELD_CONN_TYPE_HDMI) {
 423                 for (i = 0; i < sizeof(buffer); i++)
 424                         snd_hdac_codec_write(hdev, pin->nid, 0,
 425                                 AC_VERB_SET_HDMI_DIP_DATA, buffer[i]);
 426         } else {
 427                 for (i = 0; i < sizeof(dp_ai); i++)
 428                         snd_hdac_codec_write(hdev, pin->nid, 0,
 429                                 AC_VERB_SET_HDMI_DIP_DATA, dip[i]);
 430         }
 431
 432         /* Start infoframe */
 433         hdac_hdmi_set_dip_index(hdev, pin->nid, 0x0, 0x0);
 434         snd_hdac_codec_write(hdev, pin->nid, 0,
 435                         AC_VERB_SET_HDMI_DIP_XMIT, AC_DIPXMIT_BEST);
 436
 437         return 0;
 438 }
 439
 440 static int hdac_hdmi_set_stream(struct snd_soc_dai *dai,
 441                                 void *stream, int direction)
 442 {
 443         struct hdac_hdmi_priv *hdmi = snd_soc_dai_get_drvdata(dai);
 444         struct hdac_device *hdev = hdmi->hdev;
 445         struct hdac_hdmi_dai_port_map *dai_map;
 446         struct hdac_hdmi_pcm *pcm;
 447         struct hdac_stream *hstream;
 448
 449         if (!stream)
 450                 return -EINVAL;
 451
 452         hstream = (struct hdac_stream *)stream;
 453
 454         dev_dbg(&hdev->dev, "%s: strm_tag: %d\n", __func__, hstream->stream_tag);
 455
 456         dai_map = &hdmi->dai_map[dai->id];
 457
 458         pcm = hdac_hdmi_get_pcm_from_cvt(hdmi, dai_map->cvt);
 459
 460         if (pcm)
 461                 pcm->stream_tag = (hstream->stream_tag << 4);
 462
 463         return 0;
 464 }
 465
 466 static int hdac_hdmi_set_hw_params(struct snd_pcm_substream *substream,
 467         struct snd_pcm_hw_params *hparams, struct snd_soc_dai *dai)
 468 {
 469         struct hdac_hdmi_priv *hdmi = snd_soc_dai_get_drvdata(dai);
 470         struct hdac_hdmi_dai_port_map *dai_map;
 471         struct hdac_hdmi_pcm *pcm;
 472         unsigned int bits;
 473         int format;
 474
 475         dai_map = &hdmi->dai_map[dai->id];
 476
 477         bits = snd_hdac_stream_format_bits(params_format(hparams), SNDRV_PCM_SUBFORMAT_STD,
 478                                            dai->driver->playback.sig_bits);
 479         format = snd_hdac_stream_format(params_channels(hparams), bits, params_rate(hparams));
 480
 481         pcm = hdac_hdmi_get_pcm_from_cvt(hdmi, dai_map->cvt);
 482         if (!pcm)
 483                 return -EIO;
 484
 485         pcm->format = format;
 486         pcm->channels = params_channels(hparams);
 487
 488         return 0;
 489 }
 490
 491 static int hdac_hdmi_query_port_connlist(struct hdac_device *hdev,
 492                                         struct hdac_hdmi_pin *pin,
 493                                         struct hdac_hdmi_port *port)
 494 {
 495         if (!(get_wcaps(hdev, pin->nid) & AC_WCAP_CONN_LIST)) {
 496                 dev_warn(&hdev->dev,
 497                         "HDMI: pin %d wcaps %#x does not support connection list\n",
 498                         pin->nid, get_wcaps(hdev, pin->nid));
 499                 return -EINVAL;
 500         }
 501
 502         if (hdac_hdmi_port_select_set(hdev, port) < 0)
 503                 return -EIO;
 504
 505         port->num_mux_nids = snd_hdac_get_connections(hdev, pin->nid,
 506                         port->mux_nids, HDA_MAX_CONNECTIONS);
 507         if (port->num_mux_nids == 0)
 508                 dev_warn(&hdev->dev,
 509                         "No connections found for pin:port %d:%d\n",
 510                                                 pin->nid, port->id);
 511
 512         dev_dbg(&hdev->dev, "num_mux_nids %d for pin:port %d:%d\n",
 513                         port->num_mux_nids, pin->nid, port->id);
 514
 515         return port->num_mux_nids;
 516 }
 517
 518 /*
 519  * Query pcm list and return port to which stream is routed.
 520  *
 521  * Also query connection list of the pin, to validate the cvt to port map.
 522  *
 523  * Same stream rendering to multiple ports simultaneously can be done
 524  * possibly, but not supported for now in driver. So return the first port
 525  * connected.
 526  */
 527 static struct hdac_hdmi_port *hdac_hdmi_get_port_from_cvt(
 528                         struct hdac_device *hdev,
 529                         struct hdac_hdmi_priv *hdmi,
 530                         struct hdac_hdmi_cvt *cvt)
 531 {
 532         struct hdac_hdmi_pcm *pcm;
 533         struct hdac_hdmi_port *port;
 534         int ret, i;
 535
 536         list_for_each_entry(pcm, &hdmi->pcm_list, head) {
 537                 if (pcm->cvt == cvt) {
 538                         if (list_empty(&pcm->port_list))
 539                                 continue;
 540
 541                         list_for_each_entry(port, &pcm->port_list, head) {
 542                                 mutex_lock(&pcm->lock);
 543                                 ret = hdac_hdmi_query_port_connlist(hdev,
 544                                                         port->pin, port);
 545                                 mutex_unlock(&pcm->lock);
 546                                 if (ret < 0)
 547                                         continue;
 548
 549                                 for (i = 0; i < port->num_mux_nids; i++) {
 550                                         if (port->mux_nids[i] == cvt->nid &&
 551                                                 port->eld.monitor_present &&
 552                                                 port->eld.eld_valid)
 553                                                 return port;
 554                                 }
 555                         }
 556                 }
 557         }
 558
 559         return NULL;
 560 }
 561
 562 /*
 563  * Go through all converters and ensure connection is set to
 564  * the correct pin as set via kcontrols.
 565  */
 566 static void hdac_hdmi_verify_connect_sel_all_pins(struct hdac_device *hdev)
 567 {
 568         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
 569         struct hdac_hdmi_port *port;
 570         struct hdac_hdmi_cvt *cvt;
 571         int cvt_idx = 0;
 572
 573         list_for_each_entry(cvt, &hdmi->cvt_list, head) {
 574                 port = hdac_hdmi_get_port_from_cvt(hdev, hdmi, cvt);
 575                 if (port && port->pin) {
 576                         snd_hdac_codec_write(hdev, port->pin->nid, 0,
 577                                              AC_VERB_SET_CONNECT_SEL, cvt_idx);
 578                         dev_dbg(&hdev->dev, "%s: %s set connect %d -> %d\n",
 579                                 __func__, cvt->name, port->pin->nid, cvt_idx);
 580                 }
 581                 ++cvt_idx;
 582         }
 583 }
 584
 585 /*
 586  * This tries to get a valid pin and set the HW constraints based on the
 587  * ELD. Even if a valid pin is not found return success so that device open
 588  * doesn't fail.
 589  */
 590 static int hdac_hdmi_pcm_open(struct snd_pcm_substream *substream,
 591                         struct snd_soc_dai *dai)
 592 {
 593         struct hdac_hdmi_priv *hdmi = snd_soc_dai_get_drvdata(dai);
 594         struct hdac_device *hdev = hdmi->hdev;
 595         struct hdac_hdmi_dai_port_map *dai_map;
 596         struct hdac_hdmi_cvt *cvt;
 597         struct hdac_hdmi_port *port;
 598         int ret;
 599
 600         dai_map = &hdmi->dai_map[dai->id];
 601
 602         cvt = dai_map->cvt;
 603         port = hdac_hdmi_get_port_from_cvt(hdev, hdmi, cvt);
 604
 605         /*
 606          * To make PA and other userland happy.
 607          * userland scans devices so returning error does not help.
 608          */
 609         if (!port)
 610                 return 0;
 611         if ((!port->eld.monitor_present) ||
 612                         (!port->eld.eld_valid)) {
 613
 614                 dev_warn(&hdev->dev,
 615                         "Failed: present?:%d ELD valid?:%d pin:port: %d:%d\n",
 616                         port->eld.monitor_present, port->eld.eld_valid,
 617                         port->pin->nid, port->id);
 618
 619                 return 0;
 620         }
 621
 622         dai_map->port = port;
 623
 624         ret = hdac_hdmi_eld_limit_formats(substream->runtime,
 625                                 port->eld.eld_buffer);
 626         if (ret < 0)
 627                 return ret;
 628
 629         return snd_pcm_hw_constraint_eld(substream->runtime,
 630                                 port->eld.eld_buffer);
 631 }
 632
 633 static void hdac_hdmi_pcm_close(struct snd_pcm_substream *substream,
 634                 struct snd_soc_dai *dai)
 635 {
 636         struct hdac_hdmi_priv *hdmi = snd_soc_dai_get_drvdata(dai);
 637         struct hdac_hdmi_dai_port_map *dai_map;
 638         struct hdac_hdmi_pcm *pcm;
 639
 640         dai_map = &hdmi->dai_map[dai->id];
 641
 642         pcm = hdac_hdmi_get_pcm_from_cvt(hdmi, dai_map->cvt);
 643
 644         if (pcm) {
 645                 mutex_lock(&pcm->lock);
 646                 pcm->chmap_set = false;
 647                 memset(pcm->chmap, 0, sizeof(pcm->chmap));
 648                 pcm->channels = 0;
 649                 mutex_unlock(&pcm->lock);
 650         }
 651
 652         if (dai_map->port)
 653                 dai_map->port = NULL;
 654 }
 655
 656 static int
 657 hdac_hdmi_query_cvt_params(struct hdac_device *hdev, struct hdac_hdmi_cvt *cvt)
 658 {
 659         unsigned int chans;
 660         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
 661         int err;
 662
 663         chans = get_wcaps(hdev, cvt->nid);
 664         chans = get_wcaps_channels(chans);
 665
 666         cvt->params.channels_min = 2;
 667
 668         cvt->params.channels_max = chans;
 669         if (chans > hdmi->chmap.channels_max)
 670                 hdmi->chmap.channels_max = chans;
 671
 672         err = snd_hdac_query_supported_pcm(hdev, cvt->nid,
 673                         &cvt->params.rates,
 674                         &cvt->params.formats,
 675                         NULL,
 676                         &cvt->params.maxbps);
 677         if (err < 0)
 678                 dev_err(&hdev->dev,
 679                         "Failed to query pcm params for nid %d: %d\n",
 680                         cvt->nid, err);
 681
 682         return err;
 683 }
 684
 685 static int hdac_hdmi_fill_widget_info(struct device *dev,
 686                 struct snd_soc_dapm_widget *w, enum snd_soc_dapm_type id,
 687                 void *priv, const char *wname, const char *stream,
 688                 struct snd_kcontrol_new *wc, int numkc,
 689                 int (*event)(struct snd_soc_dapm_widget *,
 690                 struct snd_kcontrol *, int), unsigned short event_flags)
 691 {
 692         w->id = id;
 693         w->name = devm_kstrdup(dev, wname, GFP_KERNEL);
 694         if (!w->name)
 695                 return -ENOMEM;
 696
 697         w->sname = stream;
 698         w->reg = SND_SOC_NOPM;
 699         w->shift = 0;
 700         w->kcontrol_news = wc;
 701         w->num_kcontrols = numkc;
 702         w->priv = priv;
 703         w->event = event;
 704         w->event_flags = event_flags;
 705
 706         return 0;
 707 }
 708
 709 static void hdac_hdmi_fill_route(struct snd_soc_dapm_route *route,
 710                 const char *sink, const char *control, const char *src,
 711                 int (*handler)(struct snd_soc_dapm_widget *src,
 712                         struct snd_soc_dapm_widget *sink))
 713 {
 714         route->sink = sink;
 715         route->source = src;
 716         route->control = control;
 717         route->connected = handler;
 718 }
 719
 720 static struct hdac_hdmi_pcm *hdac_hdmi_get_pcm(struct hdac_device *hdev,
 721                                         struct hdac_hdmi_port *port)
 722 {
 723         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
 724         struct hdac_hdmi_pcm *pcm;
 725         struct hdac_hdmi_port *p;
 726
 727         list_for_each_entry(pcm, &hdmi->pcm_list, head) {
 728                 if (list_empty(&pcm->port_list))
 729                         continue;
 730
 731                 list_for_each_entry(p, &pcm->port_list, head) {
 732                         if (p->id == port->id && port->pin == p->pin)
 733                                 return pcm;
 734                 }
 735         }
 736
 737         return NULL;
 738 }
 739
 740 static void hdac_hdmi_set_power_state(struct hdac_device *hdev,
 741                              hda_nid_t nid, unsigned int pwr_state)
 742 {
 743         int count;
 744         unsigned int state;
 745
 746         if (get_wcaps(hdev, nid) & AC_WCAP_POWER) {
 747                 if (!snd_hdac_check_power_state(hdev, nid, pwr_state)) {
 748                         for (count = 0; count < 10; count++) {
 749                                 snd_hdac_codec_read(hdev, nid, 0,
 750                                                 AC_VERB_SET_POWER_STATE,
 751                                                 pwr_state);
 752                                 state = snd_hdac_sync_power_state(hdev,
 753                                                 nid, pwr_state);
 754                                 if (!(state & AC_PWRST_ERROR))
 755                                         break;
 756                         }
 757                 }
 758         }
 759 }
 760
 761 static void hdac_hdmi_set_amp(struct hdac_device *hdev,
 762                                    hda_nid_t nid, int val)
 763 {
 764         if (get_wcaps(hdev, nid) & AC_WCAP_OUT_AMP)
 765                 snd_hdac_codec_write(hdev, nid, 0,
 766                                         AC_VERB_SET_AMP_GAIN_MUTE, val);
 767 }
 768
 769
 770 static int hdac_hdmi_pin_output_widget_event(struct snd_soc_dapm_widget *w,
 771                                         struct snd_kcontrol *kc, int event)
 772 {
 773         struct hdac_hdmi_port *port = w->priv;
 774         struct hdac_device *hdev = dev_to_hdac_dev(w->dapm->dev);
 775         struct hdac_hdmi_pcm *pcm;
 776
 777         dev_dbg(&hdev->dev, "%s: widget: %s event: %x\n",
 778                         __func__, w->name, event);
 779
 780         pcm = hdac_hdmi_get_pcm(hdev, port);
 781         if (!pcm)
 782                 return -EIO;
 783
 784         /* set the device if pin is mst_capable */
 785         if (hdac_hdmi_port_select_set(hdev, port) < 0)
 786                 return -EIO;
 787
 788         switch (event) {
 789         case SND_SOC_DAPM_PRE_PMU:
 790                 hdac_hdmi_set_power_state(hdev, port->pin->nid, AC_PWRST_D0);
 791
 792                 /* Enable out path for this pin widget */
 793                 snd_hdac_codec_write(hdev, port->pin->nid, 0,
 794                                 AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT);
 795
 796                 hdac_hdmi_set_amp(hdev, port->pin->nid, AMP_OUT_UNMUTE);
 797
 798                 return hdac_hdmi_setup_audio_infoframe(hdev, pcm, port);
 799
 800         case SND_SOC_DAPM_POST_PMD:
 801                 hdac_hdmi_set_amp(hdev, port->pin->nid, AMP_OUT_MUTE);
 802
 803                 /* Disable out path for this pin widget */
 804                 snd_hdac_codec_write(hdev, port->pin->nid, 0,
 805                                 AC_VERB_SET_PIN_WIDGET_CONTROL, 0);
 806
 807                 hdac_hdmi_set_power_state(hdev, port->pin->nid, AC_PWRST_D3);
 808                 break;
 809
 810         }
 811
 812         return 0;
 813 }
 814
 815 static int hdac_hdmi_cvt_output_widget_event(struct snd_soc_dapm_widget *w,
 816                                         struct snd_kcontrol *kc, int event)
 817 {
 818         struct hdac_hdmi_cvt *cvt = w->priv;
 819         struct hdac_device *hdev = dev_to_hdac_dev(w->dapm->dev);
 820         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
 821         struct hdac_hdmi_pcm *pcm;
 822
 823         dev_dbg(&hdev->dev, "%s: widget: %s event: %x\n",
 824                         __func__, w->name, event);
 825
 826         pcm = hdac_hdmi_get_pcm_from_cvt(hdmi, cvt);
 827         if (!pcm)
 828                 return -EIO;
 829
 830         switch (event) {
 831         case SND_SOC_DAPM_PRE_PMU:
 832                 hdac_hdmi_set_power_state(hdev, cvt->nid, AC_PWRST_D0);
 833
 834                 /* Enable transmission */
 835                 snd_hdac_codec_write(hdev, cvt->nid, 0,
 836                         AC_VERB_SET_DIGI_CONVERT_1, 1);
 837
 838                 /* Category Code (CC) to zero */
 839                 snd_hdac_codec_write(hdev, cvt->nid, 0,
 840                         AC_VERB_SET_DIGI_CONVERT_2, 0);
 841
 842                 snd_hdac_codec_write(hdev, cvt->nid, 0,
 843                                 AC_VERB_SET_CHANNEL_STREAMID, pcm->stream_tag);
 844                 snd_hdac_codec_write(hdev, cvt->nid, 0,
 845                                 AC_VERB_SET_STREAM_FORMAT, pcm->format);
 846
 847                 /*
 848                  * The connection indices are shared by all converters and
 849                  * may interfere with each other. Ensure correct
 850                  * routing for all converters at stream start.
 851                  */
 852                 hdac_hdmi_verify_connect_sel_all_pins(hdev);
 853
 854                 break;
 855
 856         case SND_SOC_DAPM_POST_PMD:
 857                 snd_hdac_codec_write(hdev, cvt->nid, 0,
 858                                 AC_VERB_SET_CHANNEL_STREAMID, 0);
 859                 snd_hdac_codec_write(hdev, cvt->nid, 0,
 860                                 AC_VERB_SET_STREAM_FORMAT, 0);
 861
 862                 hdac_hdmi_set_power_state(hdev, cvt->nid, AC_PWRST_D3);
 863                 break;
 864
 865         }
 866
 867         return 0;
 868 }
 869
 870 static int hdac_hdmi_pin_mux_widget_event(struct snd_soc_dapm_widget *w,
 871                                         struct snd_kcontrol *kc, int event)
 872 {
 873         struct hdac_hdmi_port *port = w->priv;
 874         struct hdac_device *hdev = dev_to_hdac_dev(w->dapm->dev);
 875         int mux_idx;
 876
 877         dev_dbg(&hdev->dev, "%s: widget: %s event: %x\n",
 878                         __func__, w->name, event);
 879
 880         if (!kc)
 881                 kc  = w->kcontrols[0];
 882
 883         mux_idx = dapm_kcontrol_get_value(kc);
 884
 885         /* set the device if pin is mst_capable */
 886         if (hdac_hdmi_port_select_set(hdev, port) < 0)
 887                 return -EIO;
 888
 889         if (mux_idx > 0) {
 890                 snd_hdac_codec_write(hdev, port->pin->nid, 0,
 891                         AC_VERB_SET_CONNECT_SEL, (mux_idx - 1));
 892         }
 893
 894         return 0;
 895 }
 896
 897 /*
 898  * Based on user selection, map the PINs with the PCMs.
 899  */
 900 static int hdac_hdmi_set_pin_port_mux(struct snd_kcontrol *kcontrol,
 901                 struct snd_ctl_elem_value *ucontrol)
 902 {
 903         int ret;
 904         struct hdac_hdmi_port *p, *p_next;
 905         struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
 906         struct snd_soc_dapm_widget *w = snd_soc_dapm_kcontrol_widget(kcontrol);
 907         struct snd_soc_dapm_context *dapm = w->dapm;
 908         struct hdac_hdmi_port *port = w->priv;
 909         struct hdac_device *hdev = dev_to_hdac_dev(dapm->dev);
 910         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
 911         struct hdac_hdmi_pcm *pcm;
 912         const char *cvt_name =  e->texts[ucontrol->value.enumerated.item[0]];
 913
 914         ret = snd_soc_dapm_put_enum_double(kcontrol, ucontrol);
 915         if (ret < 0)
 916                 return ret;
 917
 918         if (port == NULL)
 919                 return -EINVAL;
 920
 921         mutex_lock(&hdmi->pin_mutex);
 922         list_for_each_entry(pcm, &hdmi->pcm_list, head) {
 923                 if (list_empty(&pcm->port_list))
 924                         continue;
 925
 926                 list_for_each_entry_safe(p, p_next, &pcm->port_list, head) {
 927                         if (p == port && p->id == port->id &&
 928                                         p->pin == port->pin) {
 929                                 hdac_hdmi_jack_report_sync(pcm, port, false);
 930                                 list_del(&p->head);
 931                         }
 932                 }
 933         }
 934
 935         /*
 936          * Jack status is not reported during device probe as the
 937          * PCMs are not registered by then. So report it here.
 938          */
 939         list_for_each_entry(pcm, &hdmi->pcm_list, head) {
 940                 if (!strcmp(cvt_name, pcm->cvt->name)) {
 941                         list_add_tail(&port->head, &pcm->port_list);
 942                         if (port->eld.monitor_present && port->eld.eld_valid) {
 943                                 hdac_hdmi_jack_report_sync(pcm, port, true);
 944                                 mutex_unlock(&hdmi->pin_mutex);
 945                                 return ret;
 946                         }
 947                 }
 948         }
 949         mutex_unlock(&hdmi->pin_mutex);
 950
 951         return ret;
 952 }
 953
 954 /*
 955  * Ideally the Mux inputs should be based on the num_muxs enumerated, but
 956  * the display driver seem to be programming the connection list for the pin
 957  * widget runtime.
 958  *
 959  * So programming all the possible inputs for the mux, the user has to take
 960  * care of selecting the right one and leaving all other inputs selected to
 961  * "NONE"
 962  */
 963 static int hdac_hdmi_create_pin_port_muxs(struct hdac_device *hdev,
 964                                 struct hdac_hdmi_port *port,
 965                                 struct snd_soc_dapm_widget *widget,
 966                                 const char *widget_name)
 967 {
 968         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
 969         struct hdac_hdmi_pin *pin = port->pin;
 970         struct snd_kcontrol_new *kc;
 971         struct hdac_hdmi_cvt *cvt;
 972         struct soc_enum *se;
 973         char kc_name[NAME_SIZE];
 974         char mux_items[NAME_SIZE];
 975         /* To hold inputs to the Pin mux */
 976         char *items[HDA_MAX_CONNECTIONS];
 977         int i = 0;
 978         int num_items = hdmi->num_cvt + 1;
 979
 980         kc = devm_kzalloc(&hdev->dev, sizeof(*kc), GFP_KERNEL);
 981         if (!kc)
 982                 return -ENOMEM;
 983
 984         se = devm_kzalloc(&hdev->dev, sizeof(*se), GFP_KERNEL);
 985         if (!se)
 986                 return -ENOMEM;
 987
 988         snprintf(kc_name, NAME_SIZE, "Pin %d port %d Input",
 989                                                 pin->nid, port->id);
 990         kc->name = devm_kstrdup(&hdev->dev, kc_name, GFP_KERNEL);
 991         if (!kc->name)
 992                 return -ENOMEM;
 993
 994         kc->private_value = (long)se;
 995         kc->iface = SNDRV_CTL_ELEM_IFACE_MIXER;
 996         kc->access = 0;
 997         kc->info = snd_soc_info_enum_double;
 998         kc->put = hdac_hdmi_set_pin_port_mux;
 999         kc->get = snd_soc_dapm_get_enum_double;
1000
1001         se->reg = SND_SOC_NOPM;
1002
1003         /* enum texts: ["NONE", "cvt #", "cvt #", ...] */
1004         se->items = num_items;
1005         se->mask = roundup_pow_of_two(se->items) - 1;
1006
1007         sprintf(mux_items, "NONE");
1008         items[i] = devm_kstrdup(&hdev->dev, mux_items, GFP_KERNEL);
1009         if (!items[i])
1010                 return -ENOMEM;
1011
1012         list_for_each_entry(cvt, &hdmi->cvt_list, head) {
1013                 i++;
1014                 sprintf(mux_items, "cvt %d", cvt->nid);
1015                 items[i] = devm_kstrdup(&hdev->dev, mux_items, GFP_KERNEL);
1016                 if (!items[i])
1017                         return -ENOMEM;
1018         }
1019
1020         se->texts = devm_kmemdup(&hdev->dev, items,
1021                         (num_items  * sizeof(char *)), GFP_KERNEL);
1022         if (!se->texts)
1023                 return -ENOMEM;
1024
1025         return hdac_hdmi_fill_widget_info(&hdev->dev, widget,
1026                         snd_soc_dapm_mux, port, widget_name, NULL, kc, 1,
1027                         hdac_hdmi_pin_mux_widget_event,
1028                         SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_REG);
1029 }
1030
1031 /* Add cvt <- input <- mux route map */
1032 static void hdac_hdmi_add_pinmux_cvt_route(struct hdac_device *hdev,
1033                         struct snd_soc_dapm_widget *widgets,
1034                         struct snd_soc_dapm_route *route, int rindex)
1035 {
1036         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1037         const struct snd_kcontrol_new *kc;
1038         struct soc_enum *se;
1039         int mux_index = hdmi->num_cvt + hdmi->num_ports;
1040         int i, j;
1041
1042         for (i = 0; i < hdmi->num_ports; i++) {
1043                 kc = widgets[mux_index].kcontrol_news;
1044                 se = (struct soc_enum *)kc->private_value;
1045                 for (j = 0; j < hdmi->num_cvt; j++) {
1046                         hdac_hdmi_fill_route(&route[rindex],
1047                                         widgets[mux_index].name,
1048                                         se->texts[j + 1],
1049                                         widgets[j].name, NULL);
1050
1051                         rindex++;
1052                 }
1053
1054                 mux_index++;
1055         }
1056 }
1057
1058 /*
1059  * Widgets are added in the below sequence
1060  *      Converter widgets for num converters enumerated
1061  *      Pin-port widgets for num ports for Pins enumerated
1062  *      Pin-port mux widgets to represent connenction list of pin widget
1063  *
1064  * For each port, one Mux and One output widget is added
1065  * Total widgets elements = num_cvt + (num_ports * 2);
1066  *
1067  * Routes are added as below:
1068  *      pin-port mux -> pin (based on num_ports)
1069  *      cvt -> "Input sel control" -> pin-port_mux
1070  *
1071  * Total route elements:
1072  *      num_ports + (pin_muxes * num_cvt)
1073  */
1074 static int create_fill_widget_route_map(struct snd_soc_dapm_context *dapm)
1075 {
1076         struct snd_soc_dapm_widget *widgets;
1077         struct snd_soc_dapm_route *route;
1078         struct hdac_device *hdev = dev_to_hdac_dev(dapm->dev);
1079         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1080         struct snd_soc_dai_driver *dai_drv = hdmi->dai_drv;
1081         char widget_name[NAME_SIZE];
1082         struct hdac_hdmi_cvt *cvt;
1083         struct hdac_hdmi_pin *pin;
1084         int ret, i = 0, num_routes = 0, j;
1085
1086         if (list_empty(&hdmi->cvt_list) || list_empty(&hdmi->pin_list))
1087                 return -EINVAL;
1088
1089         widgets = devm_kzalloc(dapm->dev, (sizeof(*widgets) *
1090                                 ((2 * hdmi->num_ports) + hdmi->num_cvt)),
1091                                 GFP_KERNEL);
1092
1093         if (!widgets)
1094                 return -ENOMEM;
1095
1096         /* DAPM widgets to represent each converter widget */
1097         list_for_each_entry(cvt, &hdmi->cvt_list, head) {
1098                 sprintf(widget_name, "Converter %d", cvt->nid);
1099                 ret = hdac_hdmi_fill_widget_info(dapm->dev, &widgets[i],
1100                         snd_soc_dapm_aif_in, cvt,
1101                         widget_name, dai_drv[i].playback.stream_name, NULL, 0,
1102                         hdac_hdmi_cvt_output_widget_event,
1103                         SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD);
1104                 if (ret < 0)
1105                         return ret;
1106                 i++;
1107         }
1108
1109         list_for_each_entry(pin, &hdmi->pin_list, head) {
1110                 for (j = 0; j < pin->num_ports; j++) {
1111                         sprintf(widget_name, "hif%d-%d Output",
1112                                 pin->nid, pin->ports[j].id);
1113                         ret = hdac_hdmi_fill_widget_info(dapm->dev, &widgets[i],
1114                                         snd_soc_dapm_output, &pin->ports[j],
1115                                         widget_name, NULL, NULL, 0,
1116                                         hdac_hdmi_pin_output_widget_event,
1117                                         SND_SOC_DAPM_PRE_PMU |
1118                                         SND_SOC_DAPM_POST_PMD);
1119                         if (ret < 0)
1120                                 return ret;
1121                         pin->ports[j].output_pin = widgets[i].name;
1122                         i++;
1123                 }
1124         }
1125
1126         /* DAPM widgets to represent the connection list to pin widget */
1127         list_for_each_entry(pin, &hdmi->pin_list, head) {
1128                 for (j = 0; j < pin->num_ports; j++) {
1129                         sprintf(widget_name, "Pin%d-Port%d Mux",
1130                                 pin->nid, pin->ports[j].id);
1131                         ret = hdac_hdmi_create_pin_port_muxs(hdev,
1132                                                 &pin->ports[j], &widgets[i],
1133                                                 widget_name);
1134                         if (ret < 0)
1135                                 return ret;
1136                         i++;
1137
1138                         /* For cvt to pin_mux mapping */
1139                         num_routes += hdmi->num_cvt;
1140
1141                         /* For pin_mux to pin mapping */
1142                         num_routes++;
1143                 }
1144         }
1145
1146         route = devm_kzalloc(dapm->dev, (sizeof(*route) * num_routes),
1147                                                         GFP_KERNEL);
1148         if (!route)
1149                 return -ENOMEM;
1150
1151         i = 0;
1152         /* Add pin <- NULL <- mux route map */
1153         list_for_each_entry(pin, &hdmi->pin_list, head) {
1154                 for (j = 0; j < pin->num_ports; j++) {
1155                         int sink_index = i + hdmi->num_cvt;
1156                         int src_index = sink_index + pin->num_ports *
1157                                                 hdmi->num_pin;
1158
1159                         hdac_hdmi_fill_route(&route[i],
1160                                 widgets[sink_index].name, NULL,
1161                                 widgets[src_index].name, NULL);
1162                         i++;
1163                 }
1164         }
1165
1166         hdac_hdmi_add_pinmux_cvt_route(hdev, widgets, route, i);
1167
1168         snd_soc_dapm_new_controls(dapm, widgets,
1169                 ((2 * hdmi->num_ports) + hdmi->num_cvt));
1170
1171         snd_soc_dapm_add_routes(dapm, route, num_routes);
1172         snd_soc_dapm_new_widgets(dapm->card);
1173
1174         return 0;
1175
1176 }
1177
1178 static int hdac_hdmi_init_dai_map(struct hdac_device *hdev)
1179 {
1180         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1181         struct hdac_hdmi_dai_port_map *dai_map;
1182         struct hdac_hdmi_cvt *cvt;
1183         int dai_id = 0;
1184
1185         if (list_empty(&hdmi->cvt_list))
1186                 return -EINVAL;
1187
1188         list_for_each_entry(cvt, &hdmi->cvt_list, head) {
1189                 dai_map = &hdmi->dai_map[dai_id];
1190                 dai_map->dai_id = dai_id;
1191                 dai_map->cvt = cvt;
1192
1193                 dai_id++;
1194
1195                 if (dai_id == HDA_MAX_CVTS) {
1196                         dev_warn(&hdev->dev,
1197                                 "Max dais supported: %d\n", dai_id);
1198                         break;
1199                 }
1200         }
1201
1202         return 0;
1203 }
1204
1205 static int hdac_hdmi_add_cvt(struct hdac_device *hdev, hda_nid_t nid)
1206 {
1207         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1208         struct hdac_hdmi_cvt *cvt;
1209         char name[NAME_SIZE];
1210
1211         cvt = devm_kzalloc(&hdev->dev, sizeof(*cvt), GFP_KERNEL);
1212         if (!cvt)
1213                 return -ENOMEM;
1214
1215         cvt->nid = nid;
1216         sprintf(name, "cvt %d", cvt->nid);
1217         cvt->name = devm_kstrdup(&hdev->dev, name, GFP_KERNEL);
1218         if (!cvt->name)
1219                 return -ENOMEM;
1220
1221         list_add_tail(&cvt->head, &hdmi->cvt_list);
1222         hdmi->num_cvt++;
1223
1224         return hdac_hdmi_query_cvt_params(hdev, cvt);
1225 }
1226
1227 static int hdac_hdmi_parse_eld(struct hdac_device *hdev,
1228                         struct hdac_hdmi_port *port)
1229 {
1230         unsigned int ver, mnl;
1231
1232         ver = (port->eld.eld_buffer[DRM_ELD_VER] & DRM_ELD_VER_MASK)
1233                                                 >> DRM_ELD_VER_SHIFT;
1234
1235         if (ver != ELD_VER_CEA_861D && ver != ELD_VER_PARTIAL) {
1236                 dev_err(&hdev->dev, "HDMI: Unknown ELD version %d\n", ver);
1237                 return -EINVAL;
1238         }
1239
1240         mnl = (port->eld.eld_buffer[DRM_ELD_CEA_EDID_VER_MNL] &
1241                 DRM_ELD_MNL_MASK) >> DRM_ELD_MNL_SHIFT;
1242
1243         if (mnl > ELD_MAX_MNL) {
1244                 dev_err(&hdev->dev, "HDMI: MNL Invalid %d\n", mnl);
1245                 return -EINVAL;
1246         }
1247
1248         port->eld.info.spk_alloc = port->eld.eld_buffer[DRM_ELD_SPEAKER];
1249
1250         return 0;
1251 }
1252
1253 static void hdac_hdmi_present_sense(struct hdac_hdmi_pin *pin,
1254                                     struct hdac_hdmi_port *port)
1255 {
1256         struct hdac_device *hdev = pin->hdev;
1257         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1258         struct hdac_hdmi_pcm *pcm;
1259         int size = 0;
1260         int port_id = -1;
1261         bool eld_valid, eld_changed;
1262
1263         if (!hdmi)
1264                 return;
1265
1266         /*
1267          * In case of non MST pin, get_eld info API expectes port
1268          * to be -1.
1269          */
1270         mutex_lock(&hdmi->pin_mutex);
1271         port->eld.monitor_present = false;
1272
1273         if (pin->mst_capable)
1274                 port_id = port->id;
1275
1276         size = snd_hdac_acomp_get_eld(hdev, pin->nid, port_id,
1277                                 &port->eld.monitor_present,
1278                                 port->eld.eld_buffer,
1279                                 ELD_MAX_SIZE);
1280
1281         if (size > 0) {
1282                 size = min(size, ELD_MAX_SIZE);
1283                 if (hdac_hdmi_parse_eld(hdev, port) < 0)
1284                         size = -EINVAL;
1285         }
1286
1287         eld_valid = port->eld.eld_valid;
1288
1289         if (size > 0) {
1290                 port->eld.eld_valid = true;
1291                 port->eld.eld_size = size;
1292         } else {
1293                 port->eld.eld_valid = false;
1294                 port->eld.eld_size = 0;
1295         }
1296
1297         eld_changed = (eld_valid != port->eld.eld_valid);
1298
1299         pcm = hdac_hdmi_get_pcm(hdev, port);
1300
1301         if (!port->eld.monitor_present || !port->eld.eld_valid) {
1302
1303                 dev_err(&hdev->dev, "%s: disconnect for pin:port %d:%d\n",
1304                                                 __func__, pin->nid, port->id);
1305
1306                 /*
1307                  * PCMs are not registered during device probe, so don't
1308                  * report jack here. It will be done in usermode mux
1309                  * control select.
1310                  */
1311                 if (pcm) {
1312                         hdac_hdmi_jack_report(pcm, port, false);
1313                         schedule_work(&port->dapm_work);
1314                 }
1315
1316                 mutex_unlock(&hdmi->pin_mutex);
1317                 return;
1318         }
1319
1320         if (port->eld.monitor_present && port->eld.eld_valid) {
1321                 if (pcm) {
1322                         hdac_hdmi_jack_report(pcm, port, true);
1323                         schedule_work(&port->dapm_work);
1324                 }
1325
1326                 print_hex_dump_debug("ELD: ", DUMP_PREFIX_OFFSET, 16, 1,
1327                           port->eld.eld_buffer, port->eld.eld_size, false);
1328
1329         }
1330         mutex_unlock(&hdmi->pin_mutex);
1331
1332         if (eld_changed && pcm)
1333                 snd_ctl_notify(hdmi->card,
1334                                SNDRV_CTL_EVENT_MASK_VALUE |
1335                                SNDRV_CTL_EVENT_MASK_INFO,
1336                                &pcm->eld_ctl->id);
1337 }
1338
1339 static int hdac_hdmi_add_ports(struct hdac_device *hdev,
1340                                struct hdac_hdmi_pin *pin)
1341 {
1342         struct hdac_hdmi_port *ports;
1343         int max_ports = HDA_MAX_PORTS;
1344         int i;
1345
1346         /*
1347          * FIXME: max_port may vary for each platform, so pass this as
1348          * as driver data or query from i915 interface when this API is
1349          * implemented.
1350          */
1351
1352         ports = devm_kcalloc(&hdev->dev, max_ports, sizeof(*ports), GFP_KERNEL);
1353         if (!ports)
1354                 return -ENOMEM;
1355
1356         for (i = 0; i < max_ports; i++) {
1357                 ports[i].id = i;
1358                 ports[i].pin = pin;
1359                 INIT_WORK(&ports[i].dapm_work, hdac_hdmi_jack_dapm_work);
1360         }
1361         pin->ports = ports;
1362         pin->num_ports = max_ports;
1363         return 0;
1364 }
1365
1366 static int hdac_hdmi_add_pin(struct hdac_device *hdev, hda_nid_t nid)
1367 {
1368         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1369         struct hdac_hdmi_pin *pin;
1370         int ret;
1371
1372         pin = devm_kzalloc(&hdev->dev, sizeof(*pin), GFP_KERNEL);
1373         if (!pin)
1374                 return -ENOMEM;
1375
1376         pin->nid = nid;
1377         pin->mst_capable = false;
1378         pin->hdev = hdev;
1379         ret = hdac_hdmi_add_ports(hdev, pin);
1380         if (ret < 0)
1381                 return ret;
1382
1383         list_add_tail(&pin->head, &hdmi->pin_list);
1384         hdmi->num_pin++;
1385         hdmi->num_ports += pin->num_ports;
1386
1387         return 0;
1388 }
1389
1390 #define INTEL_VENDOR_NID 0x08
1391 #define INTEL_GLK_VENDOR_NID 0x0b
1392 #define INTEL_GET_VENDOR_VERB 0xf81
1393 #define INTEL_SET_VENDOR_VERB 0x781
1394 #define INTEL_EN_DP12                   0x02 /* enable DP 1.2 features */
1395 #define INTEL_EN_ALL_PIN_CVTS   0x01 /* enable 2nd & 3rd pins and convertors */
1396
1397 static void hdac_hdmi_skl_enable_all_pins(struct hdac_device *hdev)
1398 {
1399         unsigned int vendor_param;
1400         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1401         unsigned int vendor_nid = hdmi->drv_data->vendor_nid;
1402
1403         vendor_param = snd_hdac_codec_read(hdev, vendor_nid, 0,
1404                                 INTEL_GET_VENDOR_VERB, 0);
1405         if (vendor_param == -1 || vendor_param & INTEL_EN_ALL_PIN_CVTS)
1406                 return;
1407
1408         vendor_param |= INTEL_EN_ALL_PIN_CVTS;
1409         vendor_param = snd_hdac_codec_read(hdev, vendor_nid, 0,
1410                                 INTEL_SET_VENDOR_VERB, vendor_param);
1411         if (vendor_param == -1)
1412                 return;
1413 }
1414
1415 static void hdac_hdmi_skl_enable_dp12(struct hdac_device *hdev)
1416 {
1417         unsigned int vendor_param;
1418         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1419         unsigned int vendor_nid = hdmi->drv_data->vendor_nid;
1420
1421         vendor_param = snd_hdac_codec_read(hdev, vendor_nid, 0,
1422                                 INTEL_GET_VENDOR_VERB, 0);
1423         if (vendor_param == -1 || vendor_param & INTEL_EN_DP12)
1424                 return;
1425
1426         /* enable DP1.2 mode */
1427         vendor_param |= INTEL_EN_DP12;
1428         vendor_param = snd_hdac_codec_read(hdev, vendor_nid, 0,
1429                                 INTEL_SET_VENDOR_VERB, vendor_param);
1430         if (vendor_param == -1)
1431                 return;
1432
1433 }
1434
1435 static int hdac_hdmi_eld_ctl_info(struct snd_kcontrol *kcontrol,
1436                              struct snd_ctl_elem_info *uinfo)
1437 {
1438         struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
1439         struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component);
1440         struct hdac_hdmi_pcm *pcm;
1441         struct hdac_hdmi_port *port;
1442         struct hdac_hdmi_eld *eld;
1443
1444         uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
1445         uinfo->count = 0;
1446
1447         pcm = get_hdmi_pcm_from_id(hdmi, kcontrol->id.device);
1448         if (!pcm) {
1449                 dev_dbg(component->dev, "%s: no pcm, device %d\n", __func__,
1450                         kcontrol->id.device);
1451                 return 0;
1452         }
1453
1454         if (list_empty(&pcm->port_list)) {
1455                 dev_dbg(component->dev, "%s: empty port list, device %d\n",
1456                         __func__, kcontrol->id.device);
1457                 return 0;
1458         }
1459
1460         mutex_lock(&hdmi->pin_mutex);
1461
1462         list_for_each_entry(port, &pcm->port_list, head) {
1463                 eld = &port->eld;
1464
1465                 if (eld->eld_valid) {
1466                         uinfo->count = eld->eld_size;
1467                         break;
1468                 }
1469         }
1470
1471         mutex_unlock(&hdmi->pin_mutex);
1472
1473         return 0;
1474 }
1475
1476 static int hdac_hdmi_eld_ctl_get(struct snd_kcontrol *kcontrol,
1477                             struct snd_ctl_elem_value *ucontrol)
1478 {
1479         struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
1480         struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component);
1481         struct hdac_hdmi_pcm *pcm;
1482         struct hdac_hdmi_port *port;
1483         struct hdac_hdmi_eld *eld;
1484
1485         memset(ucontrol->value.bytes.data, 0, sizeof(ucontrol->value.bytes.data));
1486
1487         pcm = get_hdmi_pcm_from_id(hdmi, kcontrol->id.device);
1488         if (!pcm) {
1489                 dev_dbg(component->dev, "%s: no pcm, device %d\n", __func__,
1490                         kcontrol->id.device);
1491                 return 0;
1492         }
1493
1494         if (list_empty(&pcm->port_list)) {
1495                 dev_dbg(component->dev, "%s: empty port list, device %d\n",
1496                         __func__, kcontrol->id.device);
1497                 return 0;
1498         }
1499
1500         mutex_lock(&hdmi->pin_mutex);
1501
1502         list_for_each_entry(port, &pcm->port_list, head) {
1503                 eld = &port->eld;
1504
1505                 if (!eld->eld_valid)
1506                         continue;
1507
1508                 if (eld->eld_size > ARRAY_SIZE(ucontrol->value.bytes.data) ||
1509                     eld->eld_size > ELD_MAX_SIZE) {
1510                         mutex_unlock(&hdmi->pin_mutex);
1511
1512                         dev_err(component->dev, "%s: buffer too small, device %d eld_size %d\n",
1513                                 __func__, kcontrol->id.device, eld->eld_size);
1514                         snd_BUG();
1515                         return -EINVAL;
1516                 }
1517
1518                 memcpy(ucontrol->value.bytes.data, eld->eld_buffer,
1519                        eld->eld_size);
1520                 break;
1521         }
1522
1523         mutex_unlock(&hdmi->pin_mutex);
1524
1525         return 0;
1526 }
1527
1528 static int hdac_hdmi_create_eld_ctl(struct snd_soc_component *component, struct hdac_hdmi_pcm *pcm)
1529 {
1530         struct snd_kcontrol *kctl;
1531         struct snd_kcontrol_new hdmi_eld_ctl = {
1532                 .access = SNDRV_CTL_ELEM_ACCESS_READ |
1533                           SNDRV_CTL_ELEM_ACCESS_VOLATILE,
1534                 .iface  = SNDRV_CTL_ELEM_IFACE_PCM,
1535                 .name   = "ELD",
1536                 .info   = hdac_hdmi_eld_ctl_info,
1537                 .get    = hdac_hdmi_eld_ctl_get,
1538                 .device = pcm->pcm_id,
1539         };
1540
1541         /* add ELD ctl with the device number corresponding to the PCM stream */
1542         kctl = snd_ctl_new1(&hdmi_eld_ctl, component);
1543         if (!kctl)
1544                 return -ENOMEM;
1545
1546         pcm->eld_ctl = kctl;
1547
1548         return snd_ctl_add(component->card->snd_card, kctl);
1549 }
1550
1551 static const struct snd_soc_dai_ops hdmi_dai_ops = {
1552         .startup = hdac_hdmi_pcm_open,
1553         .shutdown = hdac_hdmi_pcm_close,
1554         .hw_params = hdac_hdmi_set_hw_params,
1555         .set_stream = hdac_hdmi_set_stream,
1556 };
1557
1558 /*
1559  * Each converter can support a stream independently. So a dai is created
1560  * based on the number of converter queried.
1561  */
1562 static int hdac_hdmi_create_dais(struct hdac_device *hdev,
1563                 struct snd_soc_dai_driver **dais,
1564                 struct hdac_hdmi_priv *hdmi, int num_dais)
1565 {
1566         struct snd_soc_dai_driver *hdmi_dais;
1567         struct hdac_hdmi_cvt *cvt;
1568         char name[NAME_SIZE], dai_name[NAME_SIZE];
1569         int i = 0;
1570         u32 rates, bps;
1571         unsigned int rate_max = 384000, rate_min = 8000;
1572         u64 formats;
1573         int ret;
1574
1575         hdmi_dais = devm_kzalloc(&hdev->dev,
1576                         (sizeof(*hdmi_dais) * num_dais),
1577                         GFP_KERNEL);
1578         if (!hdmi_dais)
1579                 return -ENOMEM;
1580
1581         list_for_each_entry(cvt, &hdmi->cvt_list, head) {
1582                 ret = snd_hdac_query_supported_pcm(hdev, cvt->nid,
1583                                         &rates, &formats, NULL, &bps);
1584                 if (ret)
1585                         return ret;
1586
1587                 /* Filter out 44.1, 88.2 and 176.4Khz */
1588                 rates &= ~(SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_88200 |
1589                            SNDRV_PCM_RATE_176400);
1590                 if (!rates)
1591                         return -EINVAL;
1592
1593                 sprintf(dai_name, "intel-hdmi-hifi%d", i+1);
1594                 hdmi_dais[i].name = devm_kstrdup(&hdev->dev,
1595                                         dai_name, GFP_KERNEL);
1596
1597                 if (!hdmi_dais[i].name)
1598                         return -ENOMEM;
1599
1600                 snprintf(name, sizeof(name), "hifi%d", i+1);
1601                 hdmi_dais[i].playback.stream_name =
1602                                 devm_kstrdup(&hdev->dev, name, GFP_KERNEL);
1603                 if (!hdmi_dais[i].playback.stream_name)
1604                         return -ENOMEM;
1605
1606                 /*
1607                  * Set caps based on capability queried from the converter.
1608                  * It will be constrained runtime based on ELD queried.
1609                  */
1610                 hdmi_dais[i].playback.formats = formats;
1611                 hdmi_dais[i].playback.rates = rates;
1612                 hdmi_dais[i].playback.rate_max = rate_max;
1613                 hdmi_dais[i].playback.rate_min = rate_min;
1614                 hdmi_dais[i].playback.channels_min = 2;
1615                 hdmi_dais[i].playback.channels_max = 2;
1616                 hdmi_dais[i].playback.sig_bits = bps;
1617                 hdmi_dais[i].ops = &hdmi_dai_ops;
1618                 i++;
1619         }
1620
1621         *dais = hdmi_dais;
1622         hdmi->dai_drv = hdmi_dais;
1623
1624         return 0;
1625 }
1626
1627 /*
1628  * Parse all nodes and store the cvt/pin nids in array
1629  * Add one time initialization for pin and cvt widgets
1630  */
1631 static int hdac_hdmi_parse_and_map_nid(struct hdac_device *hdev,
1632                 struct snd_soc_dai_driver **dais, int *num_dais)
1633 {
1634         hda_nid_t nid;
1635         int i, num_nodes;
1636         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1637         int ret;
1638
1639         hdac_hdmi_skl_enable_all_pins(hdev);
1640         hdac_hdmi_skl_enable_dp12(hdev);
1641
1642         num_nodes = snd_hdac_get_sub_nodes(hdev, hdev->afg, &nid);
1643         if (!nid || num_nodes <= 0) {
1644                 dev_warn(&hdev->dev, "HDMI: failed to get afg sub nodes\n");
1645                 return -EINVAL;
1646         }
1647
1648         for (i = 0; i < num_nodes; i++, nid++) {
1649                 unsigned int caps;
1650                 unsigned int type;
1651
1652                 caps = get_wcaps(hdev, nid);
1653                 type = get_wcaps_type(caps);
1654
1655                 if (!(caps & AC_WCAP_DIGITAL))
1656                         continue;
1657
1658                 switch (type) {
1659
1660                 case AC_WID_AUD_OUT:
1661                         ret = hdac_hdmi_add_cvt(hdev, nid);
1662                         if (ret < 0)
1663                                 return ret;
1664                         break;
1665
1666                 case AC_WID_PIN:
1667                         ret = hdac_hdmi_add_pin(hdev, nid);
1668                         if (ret < 0)
1669                                 return ret;
1670                         break;
1671                 }
1672         }
1673
1674         if (!hdmi->num_pin || !hdmi->num_cvt) {
1675                 ret = -EIO;
1676                 dev_err(&hdev->dev, "Bad pin/cvt setup in %s\n", __func__);
1677                 return ret;
1678         }
1679
1680         ret = hdac_hdmi_create_dais(hdev, dais, hdmi, hdmi->num_cvt);
1681         if (ret) {
1682                 dev_err(&hdev->dev, "Failed to create dais with err: %d\n",
1683                         ret);
1684                 return ret;
1685         }
1686
1687         *num_dais = hdmi->num_cvt;
1688         ret = hdac_hdmi_init_dai_map(hdev);
1689         if (ret < 0)
1690                 dev_err(&hdev->dev, "Failed to init DAI map with err: %d\n",
1691                         ret);
1692         return ret;
1693 }
1694
1695 static int hdac_hdmi_pin2port(void *aptr, int pin)
1696 {
1697         return pin - 4; /* map NID 0x05 -> port #1 */
1698 }
1699
1700 static void hdac_hdmi_eld_notify_cb(void *aptr, int port, int pipe)
1701 {
1702         struct hdac_device *hdev = aptr;
1703         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1704         struct hdac_hdmi_pin *pin;
1705         struct hdac_hdmi_port *hport = NULL;
1706         struct snd_soc_component *component = hdmi->component;
1707         int i;
1708
1709         /* Don't know how this mapping is derived */
1710         hda_nid_t pin_nid = port + 0x04;
1711
1712         dev_dbg(&hdev->dev, "%s: for pin:%d port=%d\n", __func__,
1713                                                         pin_nid, pipe);
1714
1715         /*
1716          * skip notification during system suspend (but not in runtime PM);
1717          * the state will be updated at resume. Also since the ELD and
1718          * connection states are updated in anyway at the end of the resume,
1719          * we can skip it when received during PM process.
1720          */
1721         if (snd_power_get_state(component->card->snd_card) !=
1722                         SNDRV_CTL_POWER_D0)
1723                 return;
1724
1725         if (atomic_read(&hdev->in_pm))
1726                 return;
1727
1728         list_for_each_entry(pin, &hdmi->pin_list, head) {
1729                 if (pin->nid != pin_nid)
1730                         continue;
1731
1732                 /* In case of non MST pin, pipe is -1 */
1733                 if (pipe == -1) {
1734                         pin->mst_capable = false;
1735                         /* if not MST, default is port[0] */
1736                         hport = &pin->ports[0];
1737                 } else {
1738                         for (i = 0; i < pin->num_ports; i++) {
1739                                 pin->mst_capable = true;
1740                                 if (pin->ports[i].id == pipe) {
1741                                         hport = &pin->ports[i];
1742                                         break;
1743                                 }
1744                         }
1745                 }
1746
1747                 if (hport)
1748                         hdac_hdmi_present_sense(pin, hport);
1749         }
1750
1751 }
1752
1753 static struct drm_audio_component_audio_ops aops = {
1754         .pin2port       = hdac_hdmi_pin2port,
1755         .pin_eld_notify = hdac_hdmi_eld_notify_cb,
1756 };
1757
1758 static struct snd_pcm *hdac_hdmi_get_pcm_from_id(struct snd_soc_card *card,
1759                                                 int device)
1760 {
1761         struct snd_soc_pcm_runtime *rtd;
1762
1763         for_each_card_rtds(card, rtd) {
1764                 if (rtd->pcm && (rtd->pcm->device == device))
1765                         return rtd->pcm;
1766         }
1767
1768         return NULL;
1769 }
1770
1771 /* create jack pin kcontrols */
1772 static int create_fill_jack_kcontrols(struct snd_soc_card *card,
1773                                     struct hdac_device *hdev)
1774 {
1775         struct hdac_hdmi_pin *pin;
1776         struct snd_kcontrol_new *kc;
1777         char *name;
1778         int i = 0, j;
1779         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1780         struct snd_soc_component *component = hdmi->component;
1781
1782         kc = devm_kcalloc(component->dev, hdmi->num_ports,
1783                                 sizeof(*kc), GFP_KERNEL);
1784
1785         if (!kc)
1786                 return -ENOMEM;
1787
1788         list_for_each_entry(pin, &hdmi->pin_list, head) {
1789                 for (j = 0; j < pin->num_ports; j++) {
1790                         name = devm_kasprintf(component->dev, GFP_KERNEL,
1791                                               "hif%d-%d Jack",
1792                                               pin->nid, pin->ports[j].id);
1793                         if (!name)
1794                                 return -ENOMEM;
1795
1796                         kc[i].name = devm_kasprintf(component->dev, GFP_KERNEL,
1797                                                     "%s Switch", name);
1798                         if (!kc[i].name)
1799                                 return -ENOMEM;
1800
1801                         kc[i].private_value = (unsigned long)name;
1802                         kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1803                         kc[i].access = 0;
1804                         kc[i].info = snd_soc_dapm_info_pin_switch;
1805                         kc[i].put = snd_soc_dapm_put_pin_switch;
1806                         kc[i].get = snd_soc_dapm_get_pin_switch;
1807                         i++;
1808                 }
1809         }
1810
1811         return snd_soc_add_card_controls(card, kc, i);
1812 }
1813
1814 int hdac_hdmi_jack_port_init(struct snd_soc_component *component,
1815                         struct snd_soc_dapm_context *dapm)
1816 {
1817         struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component);
1818         struct hdac_device *hdev = hdmi->hdev;
1819         struct hdac_hdmi_pin *pin;
1820         struct snd_soc_dapm_widget *widgets;
1821         struct snd_soc_dapm_route *route;
1822         char w_name[NAME_SIZE];
1823         int i = 0, j, ret;
1824
1825         widgets = devm_kcalloc(dapm->dev, hdmi->num_ports,
1826                                 sizeof(*widgets), GFP_KERNEL);
1827
1828         if (!widgets)
1829                 return -ENOMEM;
1830
1831         route = devm_kcalloc(dapm->dev, hdmi->num_ports,
1832                                 sizeof(*route), GFP_KERNEL);
1833         if (!route)
1834                 return -ENOMEM;
1835
1836         /* create Jack DAPM widget */
1837         list_for_each_entry(pin, &hdmi->pin_list, head) {
1838                 for (j = 0; j < pin->num_ports; j++) {
1839                         snprintf(w_name, sizeof(w_name), "hif%d-%d Jack",
1840                                                 pin->nid, pin->ports[j].id);
1841
1842                         ret = hdac_hdmi_fill_widget_info(dapm->dev, &widgets[i],
1843                                         snd_soc_dapm_spk, NULL,
1844                                         w_name, NULL, NULL, 0, NULL, 0);
1845                         if (ret < 0)
1846                                 return ret;
1847
1848                         pin->ports[j].jack_pin = widgets[i].name;
1849                         pin->ports[j].dapm = dapm;
1850
1851                         /* add to route from Jack widget to output */
1852                         hdac_hdmi_fill_route(&route[i], pin->ports[j].jack_pin,
1853                                         NULL, pin->ports[j].output_pin, NULL);
1854
1855                         i++;
1856                 }
1857         }
1858
1859         /* Add Route from Jack widget to the output widget */
1860         ret = snd_soc_dapm_new_controls(dapm, widgets, hdmi->num_ports);
1861         if (ret < 0)
1862                 return ret;
1863
1864         ret = snd_soc_dapm_add_routes(dapm, route, hdmi->num_ports);
1865         if (ret < 0)
1866                 return ret;
1867
1868         ret = snd_soc_dapm_new_widgets(dapm->card);
1869         if (ret < 0)
1870                 return ret;
1871
1872         /* Add Jack Pin switch Kcontrol */
1873         ret = create_fill_jack_kcontrols(dapm->card, hdev);
1874
1875         if (ret < 0)
1876                 return ret;
1877
1878         /* default set the Jack Pin switch to OFF */
1879         list_for_each_entry(pin, &hdmi->pin_list, head) {
1880                 for (j = 0; j < pin->num_ports; j++)
1881                         snd_soc_dapm_disable_pin(pin->ports[j].dapm,
1882                                                 pin->ports[j].jack_pin);
1883         }
1884
1885         return 0;
1886 }
1887 EXPORT_SYMBOL_GPL(hdac_hdmi_jack_port_init);
1888
1889 int hdac_hdmi_jack_init(struct snd_soc_dai *dai, int device,
1890                                 struct snd_soc_jack *jack)
1891 {
1892         struct snd_soc_component *component = dai->component;
1893         struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component);
1894         struct hdac_device *hdev = hdmi->hdev;
1895         struct hdac_hdmi_pcm *pcm;
1896         struct snd_pcm *snd_pcm;
1897         int err;
1898
1899         /*
1900          * this is a new PCM device, create new pcm and
1901          * add to the pcm list
1902          */
1903         pcm = devm_kzalloc(&hdev->dev, sizeof(*pcm), GFP_KERNEL);
1904         if (!pcm)
1905                 return -ENOMEM;
1906         pcm->pcm_id = device;
1907         pcm->cvt = hdmi->dai_map[dai->id].cvt;
1908         pcm->jack_event = 0;
1909         pcm->jack = jack;
1910         mutex_init(&pcm->lock);
1911         INIT_LIST_HEAD(&pcm->port_list);
1912         snd_pcm = hdac_hdmi_get_pcm_from_id(dai->component->card, device);
1913         if (snd_pcm) {
1914                 err = snd_hdac_add_chmap_ctls(snd_pcm, device, &hdmi->chmap);
1915                 if (err < 0) {
1916                         dev_err(&hdev->dev,
1917                                 "chmap control add failed with err: %d for pcm: %d\n",
1918                                 err, device);
1919                         return err;
1920                 }
1921         }
1922
1923         /* add control for ELD Bytes */
1924         err = hdac_hdmi_create_eld_ctl(component, pcm);
1925         if (err < 0) {
1926                 dev_err(&hdev->dev,
1927                         "eld control add failed with err: %d for pcm: %d\n",
1928                         err, device);
1929                 return err;
1930         }
1931
1932         list_add_tail(&pcm->head, &hdmi->pcm_list);
1933
1934         return 0;
1935 }
1936 EXPORT_SYMBOL_GPL(hdac_hdmi_jack_init);
1937
1938 static void hdac_hdmi_present_sense_all_pins(struct hdac_device *hdev,
1939                         struct hdac_hdmi_priv *hdmi, bool detect_pin_caps)
1940 {
1941         int i;
1942         struct hdac_hdmi_pin *pin;
1943
1944         list_for_each_entry(pin, &hdmi->pin_list, head) {
1945                 if (detect_pin_caps) {
1946
1947                         if (hdac_hdmi_get_port_len(hdev, pin->nid)  == 0)
1948                                 pin->mst_capable = false;
1949                         else
1950                                 pin->mst_capable = true;
1951                 }
1952
1953                 for (i = 0; i < pin->num_ports; i++) {
1954                         if (!pin->mst_capable && i > 0)
1955                                 continue;
1956
1957                         hdac_hdmi_present_sense(pin, &pin->ports[i]);
1958                 }
1959         }
1960 }
1961
1962 static int hdmi_codec_probe(struct snd_soc_component *component)
1963 {
1964         struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component);
1965         struct hdac_device *hdev = hdmi->hdev;
1966         struct snd_soc_dapm_context *dapm =
1967                 snd_soc_component_get_dapm(component);
1968         struct hdac_ext_link *hlink;
1969         int ret;
1970
1971         hdmi->component = component;
1972
1973         /*
1974          * hold the ref while we probe, also no need to drop the ref on
1975          * exit, we call pm_runtime_suspend() so that will do for us
1976          */
1977         hlink = snd_hdac_ext_bus_get_hlink_by_name(hdev->bus, dev_name(&hdev->dev));
1978         if (!hlink) {
1979                 dev_err(&hdev->dev, "hdac link not found\n");
1980                 return -EIO;
1981         }
1982
1983         snd_hdac_ext_bus_link_get(hdev->bus, hlink);
1984
1985         ret = create_fill_widget_route_map(dapm);
1986         if (ret < 0)
1987                 return ret;
1988
1989         aops.audio_ptr = hdev;
1990         ret = snd_hdac_acomp_register_notifier(hdev->bus, &aops);
1991         if (ret < 0) {
1992                 dev_err(&hdev->dev, "notifier register failed: err: %d\n", ret);
1993                 return ret;
1994         }
1995
1996         hdac_hdmi_present_sense_all_pins(hdev, hdmi, true);
1997         /* Imp: Store the card pointer in hda_codec */
1998         hdmi->card = dapm->card->snd_card;
1999
2000         /*
2001          * Setup a device_link between card device and HDMI codec device.
2002          * The card device is the consumer and the HDMI codec device is
2003          * the supplier. With this setting, we can make sure that the audio
2004          * domain in display power will be always turned on before operating
2005          * on the HDMI audio codec registers.
2006          * Let's use the flag DL_FLAG_AUTOREMOVE_CONSUMER. This can make
2007          * sure the device link is freed when the machine driver is removed.
2008          */
2009         device_link_add(component->card->dev, &hdev->dev, DL_FLAG_RPM_ACTIVE |
2010                         DL_FLAG_AUTOREMOVE_CONSUMER);
2011         /*
2012          * hdac_device core already sets the state to active and calls
2013          * get_noresume. So enable runtime and set the device to suspend.
2014          */
2015         pm_runtime_enable(&hdev->dev);
2016         pm_runtime_put(&hdev->dev);
2017         pm_runtime_suspend(&hdev->dev);
2018
2019         return 0;
2020 }
2021
2022 static void hdmi_codec_remove(struct snd_soc_component *component)
2023 {
2024         struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component);
2025         struct hdac_device *hdev = hdmi->hdev;
2026         int ret;
2027
2028         ret = snd_hdac_acomp_register_notifier(hdev->bus, NULL);
2029         if (ret < 0)
2030                 dev_err(&hdev->dev, "notifier unregister failed: err: %d\n",
2031                                 ret);
2032
2033         pm_runtime_disable(&hdev->dev);
2034 }
2035
2036 #ifdef CONFIG_PM_SLEEP
2037 static int hdmi_codec_resume(struct device *dev)
2038 {
2039         struct hdac_device *hdev = dev_to_hdac_dev(dev);
2040         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
2041         int ret;
2042
2043         ret = pm_runtime_force_resume(dev);
2044         if (ret < 0)
2045                 return ret;
2046         /*
2047          * As the ELD notify callback request is not entertained while the
2048          * device is in suspend state. Need to manually check detection of
2049          * all pins here. pin capablity change is not support, so use the
2050          * already set pin caps.
2051          *
2052          * NOTE: this is safe to call even if the codec doesn't actually resume.
2053          * The pin check involves only with DRM audio component hooks, so it
2054          * works even if the HD-audio side is still dreaming peacefully.
2055          */
2056         hdac_hdmi_present_sense_all_pins(hdev, hdmi, false);
2057         return 0;
2058 }
2059 #else
2060 #define hdmi_codec_resume NULL
2061 #endif
2062
2063 static const struct snd_soc_component_driver hdmi_hda_codec = {
2064         .probe                  = hdmi_codec_probe,
2065         .remove                 = hdmi_codec_remove,
2066         .use_pmdown_time        = 1,
2067         .endianness             = 1,
2068 };
2069
2070 static void hdac_hdmi_get_chmap(struct hdac_device *hdev, int pcm_idx,
2071                                         unsigned char *chmap)
2072 {
2073         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
2074         struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
2075
2076         memcpy(chmap, pcm->chmap, ARRAY_SIZE(pcm->chmap));
2077 }
2078
2079 static void hdac_hdmi_set_chmap(struct hdac_device *hdev, int pcm_idx,
2080                                 unsigned char *chmap, int prepared)
2081 {
2082         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
2083         struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
2084         struct hdac_hdmi_port *port;
2085
2086         if (!pcm)
2087                 return;
2088
2089         if (list_empty(&pcm->port_list))
2090                 return;
2091
2092         mutex_lock(&pcm->lock);
2093         pcm->chmap_set = true;
2094         memcpy(pcm->chmap, chmap, ARRAY_SIZE(pcm->chmap));
2095         list_for_each_entry(port, &pcm->port_list, head)
2096                 if (prepared)
2097                         hdac_hdmi_setup_audio_infoframe(hdev, pcm, port);
2098         mutex_unlock(&pcm->lock);
2099 }
2100
2101 static bool is_hdac_hdmi_pcm_attached(struct hdac_device *hdev, int pcm_idx)
2102 {
2103         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
2104         struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
2105
2106         if (!pcm)
2107                 return false;
2108
2109         if (list_empty(&pcm->port_list))
2110                 return false;
2111
2112         return true;
2113 }
2114
2115 static int hdac_hdmi_get_spk_alloc(struct hdac_device *hdev, int pcm_idx)
2116 {
2117         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
2118         struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
2119         struct hdac_hdmi_port *port;
2120
2121         if (!pcm)
2122                 return 0;
2123
2124         if (list_empty(&pcm->port_list))
2125                 return 0;
2126
2127         port = list_first_entry(&pcm->port_list, struct hdac_hdmi_port, head);
2128
2129         if (!port || !port->eld.eld_valid)
2130                 return 0;
2131
2132         return port->eld.info.spk_alloc;
2133 }
2134
2135 static struct hdac_hdmi_drv_data intel_glk_drv_data  = {
2136         .vendor_nid = INTEL_GLK_VENDOR_NID,
2137 };
2138
2139 static struct hdac_hdmi_drv_data intel_drv_data  = {
2140         .vendor_nid = INTEL_VENDOR_NID,
2141 };
2142
2143 static int hdac_hdmi_dev_probe(struct hdac_device *hdev)
2144 {
2145         struct hdac_hdmi_priv *hdmi_priv;
2146         struct snd_soc_dai_driver *hdmi_dais = NULL;
2147         struct hdac_ext_link *hlink;
2148         int num_dais = 0;
2149         int ret;
2150         struct hdac_driver *hdrv = drv_to_hdac_driver(hdev->dev.driver);
2151         const struct hda_device_id *hdac_id = hdac_get_device_id(hdev, hdrv);
2152
2153         /* hold the ref while we probe */
2154         hlink = snd_hdac_ext_bus_get_hlink_by_name(hdev->bus, dev_name(&hdev->dev));
2155         if (!hlink) {
2156                 dev_err(&hdev->dev, "hdac link not found\n");
2157                 return -EIO;
2158         }
2159
2160         snd_hdac_ext_bus_link_get(hdev->bus, hlink);
2161
2162         hdmi_priv = devm_kzalloc(&hdev->dev, sizeof(*hdmi_priv), GFP_KERNEL);
2163         if (hdmi_priv == NULL)
2164                 return -ENOMEM;
2165
2166         snd_hdac_register_chmap_ops(hdev, &hdmi_priv->chmap);
2167         hdmi_priv->chmap.ops.get_chmap = hdac_hdmi_get_chmap;
2168         hdmi_priv->chmap.ops.set_chmap = hdac_hdmi_set_chmap;
2169         hdmi_priv->chmap.ops.is_pcm_attached = is_hdac_hdmi_pcm_attached;
2170         hdmi_priv->chmap.ops.get_spk_alloc = hdac_hdmi_get_spk_alloc;
2171         hdmi_priv->hdev = hdev;
2172
2173         if (!hdac_id)
2174                 return -ENODEV;
2175
2176         if (hdac_id->driver_data)
2177                 hdmi_priv->drv_data =
2178                         (struct hdac_hdmi_drv_data *)hdac_id->driver_data;
2179         else
2180                 hdmi_priv->drv_data = &intel_drv_data;
2181
2182         dev_set_drvdata(&hdev->dev, hdmi_priv);
2183
2184         INIT_LIST_HEAD(&hdmi_priv->pin_list);
2185         INIT_LIST_HEAD(&hdmi_priv->cvt_list);
2186         INIT_LIST_HEAD(&hdmi_priv->pcm_list);
2187         mutex_init(&hdmi_priv->pin_mutex);
2188
2189         /*
2190          * Turned off in the runtime_suspend during the first explicit
2191          * pm_runtime_suspend call.
2192          */
2193         snd_hdac_display_power(hdev->bus, hdev->addr, true);
2194
2195         ret = hdac_hdmi_parse_and_map_nid(hdev, &hdmi_dais, &num_dais);
2196         if (ret < 0) {
2197                 dev_err(&hdev->dev,
2198                         "Failed in parse and map nid with err: %d\n", ret);
2199                 return ret;
2200         }
2201         snd_hdac_refresh_widgets(hdev);
2202
2203         /* ASoC specific initialization */
2204         ret = devm_snd_soc_register_component(&hdev->dev, &hdmi_hda_codec,
2205                                         hdmi_dais, num_dais);
2206
2207         snd_hdac_ext_bus_link_put(hdev->bus, hlink);
2208
2209         return ret;
2210 }
2211
2212 static void clear_dapm_works(struct hdac_device *hdev)
2213 {
2214         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
2215         struct hdac_hdmi_pin *pin;
2216         int i;
2217
2218         list_for_each_entry(pin, &hdmi->pin_list, head)
2219                 for (i = 0; i < pin->num_ports; i++)
2220                         cancel_work_sync(&pin->ports[i].dapm_work);
2221 }
2222
2223 static int hdac_hdmi_dev_remove(struct hdac_device *hdev)
2224 {
2225         clear_dapm_works(hdev);
2226         snd_hdac_display_power(hdev->bus, hdev->addr, false);
2227
2228         return 0;
2229 }
2230
2231 #ifdef CONFIG_PM
2232 static int hdac_hdmi_runtime_suspend(struct device *dev)
2233 {
2234         struct hdac_device *hdev = dev_to_hdac_dev(dev);
2235         struct hdac_bus *bus = hdev->bus;
2236         struct hdac_ext_link *hlink;
2237
2238         dev_dbg(dev, "Enter: %s\n", __func__);
2239
2240         /* controller may not have been initialized for the first time */
2241         if (!bus)
2242                 return 0;
2243
2244         /*
2245          * Power down afg.
2246          * codec_read is preferred over codec_write to set the power state.
2247          * This way verb is send to set the power state and response
2248          * is received. So setting power state is ensured without using loop
2249          * to read the state.
2250          */
2251         snd_hdac_codec_read(hdev, hdev->afg, 0, AC_VERB_SET_POWER_STATE,
2252                                                         AC_PWRST_D3);
2253
2254         hlink = snd_hdac_ext_bus_get_hlink_by_name(bus, dev_name(dev));
2255         if (!hlink) {
2256                 dev_err(dev, "hdac link not found\n");
2257                 return -EIO;
2258         }
2259
2260         snd_hdac_codec_link_down(hdev);
2261         snd_hdac_ext_bus_link_put(bus, hlink);
2262
2263         snd_hdac_display_power(bus, hdev->addr, false);
2264
2265         return 0;
2266 }
2267
2268 static int hdac_hdmi_runtime_resume(struct device *dev)
2269 {
2270         struct hdac_device *hdev = dev_to_hdac_dev(dev);
2271         struct hdac_bus *bus = hdev->bus;
2272         struct hdac_ext_link *hlink;
2273
2274         dev_dbg(dev, "Enter: %s\n", __func__);
2275
2276         /* controller may not have been initialized for the first time */
2277         if (!bus)
2278                 return 0;
2279
2280         hlink = snd_hdac_ext_bus_get_hlink_by_name(bus, dev_name(dev));
2281         if (!hlink) {
2282                 dev_err(dev, "hdac link not found\n");
2283                 return -EIO;
2284         }
2285
2286         snd_hdac_ext_bus_link_get(bus, hlink);
2287         snd_hdac_codec_link_up(hdev);
2288
2289         snd_hdac_display_power(bus, hdev->addr, true);
2290
2291         hdac_hdmi_skl_enable_all_pins(hdev);
2292         hdac_hdmi_skl_enable_dp12(hdev);
2293
2294         /* Power up afg */
2295         snd_hdac_codec_read(hdev, hdev->afg, 0, AC_VERB_SET_POWER_STATE,
2296                                                         AC_PWRST_D0);
2297
2298         return 0;
2299 }
2300 #else
2301 #define hdac_hdmi_runtime_suspend NULL
2302 #define hdac_hdmi_runtime_resume NULL
2303 #endif
2304
2305 static const struct dev_pm_ops hdac_hdmi_pm = {
2306         SET_RUNTIME_PM_OPS(hdac_hdmi_runtime_suspend, hdac_hdmi_runtime_resume, NULL)
2307         SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, hdmi_codec_resume)
2308 };
2309
2310 static const struct hda_device_id hdmi_list[] = {
2311         HDA_CODEC_EXT_ENTRY(0x80862809, 0x100000, "Skylake HDMI", 0),
2312         HDA_CODEC_EXT_ENTRY(0x8086280a, 0x100000, "Broxton HDMI", 0),
2313         HDA_CODEC_EXT_ENTRY(0x8086280b, 0x100000, "Kabylake HDMI", 0),
2314         HDA_CODEC_EXT_ENTRY(0x8086280c, 0x100000, "Cannonlake HDMI",
2315                                                    &intel_glk_drv_data),
2316         HDA_CODEC_EXT_ENTRY(0x8086280d, 0x100000, "Geminilake HDMI",
2317                                                    &intel_glk_drv_data),
2318         {}
2319 };
2320
2321 MODULE_DEVICE_TABLE(hdaudio, hdmi_list);
2322
2323 static struct hdac_driver hdmi_driver = {
2324         .driver = {
2325                 .name   = "HDMI HDA Codec",
2326                 .pm = &hdac_hdmi_pm,
2327         },
2328         .id_table       = hdmi_list,
2329         .probe          = hdac_hdmi_dev_probe,
2330         .remove         = hdac_hdmi_dev_remove,
2331 };
2332
2333 static int __init hdmi_init(void)
2334 {
2335         return snd_hda_ext_driver_register(&hdmi_driver);
2336 }
2337
2338 static void __exit hdmi_exit(void)
2339 {
2340         snd_hda_ext_driver_unregister(&hdmi_driver);
2341 }
2342
2343 module_init(hdmi_init);
2344 module_exit(hdmi_exit);
2345
2346 MODULE_LICENSE("GPL v2");
2347 MODULE_DESCRIPTION("HDMI HD codec");
2348 MODULE_AUTHOR("Samreen Nilofer<[email protected]>");
2349 MODULE_AUTHOR("Subhransu S. Prusty<[email protected]>");