sound/pci/hda/patch_hdmi.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  *
   4  *  patch_hdmi.c - routines for HDMI/DisplayPort codecs
   5  *
   6  *  Copyright(c) 2008-2010 Intel Corporation. All rights reserved.
   7  *  Copyright (c) 2006 ATI Technologies Inc.
   8  *  Copyright (c) 2008 NVIDIA Corp.  All rights reserved.
   9  *  Copyright (c) 2008 Wei Ni <wni@nvidia.com>
  10  *  Copyright (c) 2013 Anssi Hannula <anssi.hannula@iki.fi>
  11  *
  12  *  Authors:
  13  *                      Wu Fengguang <wfg@linux.intel.com>
  14  *
  15  *  Maintained by:
  16  *                      Wu Fengguang <wfg@linux.intel.com>
  17  */
  18
  19 #include <linux/init.h>
  20 #include <linux/delay.h>
  21 #include <linux/slab.h>
  22 #include <linux/module.h>
  23 #include <linux/pm_runtime.h>
  24 #include <sound/core.h>
  25 #include <sound/jack.h>
  26 #include <sound/asoundef.h>
  27 #include <sound/tlv.h>
  28 #include <sound/hdaudio.h>
  29 #include <sound/hda_i915.h>
  30 #include <sound/hda_chmap.h>
  31 #include <sound/hda_codec.h>
  32 #include "hda_local.h"
  33 #include "hda_jack.h"
  34
  35 static bool static_hdmi_pcm;
  36 module_param(static_hdmi_pcm, bool, 0644);
  37 MODULE_PARM_DESC(static_hdmi_pcm, "Don't restrict PCM parameters per ELD info");
  38
  39 #define is_haswell(codec)  ((codec)->core.vendor_id == 0x80862807)
  40 #define is_broadwell(codec)    ((codec)->core.vendor_id == 0x80862808)
  41 #define is_skylake(codec) ((codec)->core.vendor_id == 0x80862809)
  42 #define is_broxton(codec) ((codec)->core.vendor_id == 0x8086280a)
  43 #define is_kabylake(codec) ((codec)->core.vendor_id == 0x8086280b)
  44 #define is_geminilake(codec) (((codec)->core.vendor_id == 0x8086280d) || \
  45                                 ((codec)->core.vendor_id == 0x80862800))
  46 #define is_cannonlake(codec) ((codec)->core.vendor_id == 0x8086280c)
  47 #define is_icelake(codec) ((codec)->core.vendor_id == 0x8086280f)
  48 #define is_haswell_plus(codec) (is_haswell(codec) || is_broadwell(codec) \
  49                                 || is_skylake(codec) || is_broxton(codec) \
  50                                 || is_kabylake(codec) || is_geminilake(codec) \
  51                                 || is_cannonlake(codec) || is_icelake(codec))
  52 #define is_valleyview(codec) ((codec)->core.vendor_id == 0x80862882)
  53 #define is_cherryview(codec) ((codec)->core.vendor_id == 0x80862883)
  54 #define is_valleyview_plus(codec) (is_valleyview(codec) || is_cherryview(codec))
  55
  56 struct hdmi_spec_per_cvt {
  57         hda_nid_t cvt_nid;
  58         int assigned;
  59         unsigned int channels_min;
  60         unsigned int channels_max;
  61         u32 rates;
  62         u64 formats;
  63         unsigned int maxbps;
  64 };
  65
  66 /* max. connections to a widget */
  67 #define HDA_MAX_CONNECTIONS     32
  68
  69 struct hdmi_spec_per_pin {
  70         hda_nid_t pin_nid;
  71         int dev_id;
  72         /* pin idx, different device entries on the same pin use the same idx */
  73         int pin_nid_idx;
  74         int num_mux_nids;
  75         hda_nid_t mux_nids[HDA_MAX_CONNECTIONS];
  76         int mux_idx;
  77         hda_nid_t cvt_nid;
  78
  79         struct hda_codec *codec;
  80         struct hdmi_eld sink_eld;
  81         struct mutex lock;
  82         struct delayed_work work;
  83         struct hdmi_pcm *pcm; /* pointer to spec->pcm_rec[n] dynamically*/
  84         int pcm_idx; /* which pcm is attached. -1 means no pcm is attached */
  85         int repoll_count;
  86         bool setup; /* the stream has been set up by prepare callback */
  87         int channels; /* current number of channels */
  88         bool non_pcm;
  89         bool chmap_set;         /* channel-map override by ALSA API? */
  90         unsigned char chmap[8]; /* ALSA API channel-map */
  91 #ifdef CONFIG_SND_PROC_FS
  92         struct snd_info_entry *proc_entry;
  93 #endif
  94 };
  95
  96 /* operations used by generic code that can be overridden by patches */
  97 struct hdmi_ops {
  98         int (*pin_get_eld)(struct hda_codec *codec, hda_nid_t pin_nid,
  99                            unsigned char *buf, int *eld_size);
 100
 101         void (*pin_setup_infoframe)(struct hda_codec *codec, hda_nid_t pin_nid,
 102                                     int ca, int active_channels, int conn_type);
 103
 104         /* enable/disable HBR (HD passthrough) */
 105         int (*pin_hbr_setup)(struct hda_codec *codec, hda_nid_t pin_nid, bool hbr);
 106
 107         int (*setup_stream)(struct hda_codec *codec, hda_nid_t cvt_nid,
 108                             hda_nid_t pin_nid, u32 stream_tag, int format);
 109
 110         void (*pin_cvt_fixup)(struct hda_codec *codec,
 111                               struct hdmi_spec_per_pin *per_pin,
 112                               hda_nid_t cvt_nid);
 113 };
 114
 115 struct hdmi_pcm {
 116         struct hda_pcm *pcm;
 117         struct snd_jack *jack;
 118         struct snd_kcontrol *eld_ctl;
 119 };
 120
 121 struct hdmi_spec {
 122         int num_cvts;
 123         struct snd_array cvts; /* struct hdmi_spec_per_cvt */
 124         hda_nid_t cvt_nids[4]; /* only for haswell fix */
 125
 126         /*
 127          * num_pins is the number of virtual pins
 128          * for example, there are 3 pins, and each pin
 129          * has 4 device entries, then the num_pins is 12
 130          */
 131         int num_pins;
 132         /*
 133          * num_nids is the number of real pins
 134          * In the above example, num_nids is 3
 135          */
 136         int num_nids;
 137         /*
 138          * dev_num is the number of device entries
 139          * on each pin.
 140          * In the above example, dev_num is 4
 141          */
 142         int dev_num;
 143         struct snd_array pins; /* struct hdmi_spec_per_pin */
 144         struct hdmi_pcm pcm_rec[16];
 145         struct mutex pcm_lock;
 146         /* pcm_bitmap means which pcms have been assigned to pins*/
 147         unsigned long pcm_bitmap;
 148         int pcm_used;   /* counter of pcm_rec[] */
 149         /* bitmap shows whether the pcm is opened in user space
 150          * bit 0 means the first playback PCM (PCM3);
 151          * bit 1 means the second playback PCM, and so on.
 152          */
 153         unsigned long pcm_in_use;
 154
 155         struct hdmi_eld temp_eld;
 156         struct hdmi_ops ops;
 157
 158         bool dyn_pin_out;
 159         bool dyn_pcm_assign;
 160         /*
 161          * Non-generic VIA/NVIDIA specific
 162          */
 163         struct hda_multi_out multiout;
 164         struct hda_pcm_stream pcm_playback;
 165
 166         /* i915/powerwell (Haswell+/Valleyview+) specific */
 167         bool use_acomp_notifier; /* use i915 eld_notify callback for hotplug */
 168         struct drm_audio_component_audio_ops drm_audio_ops;
 169
 170         struct hdac_chmap chmap;
 171         hda_nid_t vendor_nid;
 172         const int *port_map;
 173         int port_num;
 174 };
 175
 176 #ifdef CONFIG_SND_HDA_COMPONENT
 177 static inline bool codec_has_acomp(struct hda_codec *codec)
 178 {
 179         struct hdmi_spec *spec = codec->spec;
 180         return spec->use_acomp_notifier;
 181 }
 182 #else
 183 #define codec_has_acomp(codec)  false
 184 #endif
 185
 186 struct hdmi_audio_infoframe {
 187         u8 type; /* 0x84 */
 188         u8 ver;  /* 0x01 */
 189         u8 len;  /* 0x0a */
 190
 191         u8 checksum;
 192
 193         u8 CC02_CT47;   /* CC in bits 0:2, CT in 4:7 */
 194         u8 SS01_SF24;
 195         u8 CXT04;
 196         u8 CA;
 197         u8 LFEPBL01_LSV36_DM_INH7;
 198 };
 199
 200 struct dp_audio_infoframe {
 201         u8 type; /* 0x84 */
 202         u8 len;  /* 0x1b */
 203         u8 ver;  /* 0x11 << 2 */
 204
 205         u8 CC02_CT47;   /* match with HDMI infoframe from this on */
 206         u8 SS01_SF24;
 207         u8 CXT04;
 208         u8 CA;
 209         u8 LFEPBL01_LSV36_DM_INH7;
 210 };
 211
 212 union audio_infoframe {
 213         struct hdmi_audio_infoframe hdmi;
 214         struct dp_audio_infoframe dp;
 215         u8 bytes[0];
 216 };
 217
 218 /*
 219  * HDMI routines
 220  */
 221
 222 #define get_pin(spec, idx) \
 223         ((struct hdmi_spec_per_pin *)snd_array_elem(&spec->pins, idx))
 224 #define get_cvt(spec, idx) \
 225         ((struct hdmi_spec_per_cvt  *)snd_array_elem(&spec->cvts, idx))
 226 /* obtain hdmi_pcm object assigned to idx */
 227 #define get_hdmi_pcm(spec, idx) (&(spec)->pcm_rec[idx])
 228 /* obtain hda_pcm object assigned to idx */
 229 #define get_pcm_rec(spec, idx)  (get_hdmi_pcm(spec, idx)->pcm)
 230
 231 static int pin_id_to_pin_index(struct hda_codec *codec,
 232                                hda_nid_t pin_nid, int dev_id)
 233 {
 234         struct hdmi_spec *spec = codec->spec;
 235         int pin_idx;
 236         struct hdmi_spec_per_pin *per_pin;
 237
 238         /*
 239          * (dev_id == -1) means it is NON-MST pin
 240          * return the first virtual pin on this port
 241          */
 242         if (dev_id == -1)
 243                 dev_id = 0;
 244
 245         for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
 246                 per_pin = get_pin(spec, pin_idx);
 247                 if ((per_pin->pin_nid == pin_nid) &&
 248                         (per_pin->dev_id == dev_id))
 249                         return pin_idx;
 250         }
 251
 252         codec_warn(codec, "HDMI: pin nid %d not registered\n", pin_nid);
 253         return -EINVAL;
 254 }
 255
 256 static int hinfo_to_pcm_index(struct hda_codec *codec,
 257                         struct hda_pcm_stream *hinfo)
 258 {
 259         struct hdmi_spec *spec = codec->spec;
 260         int pcm_idx;
 261
 262         for (pcm_idx = 0; pcm_idx < spec->pcm_used; pcm_idx++)
 263                 if (get_pcm_rec(spec, pcm_idx)->stream == hinfo)
 264                         return pcm_idx;
 265
 266         codec_warn(codec, "HDMI: hinfo %p not registered\n", hinfo);
 267         return -EINVAL;
 268 }
 269
 270 static int hinfo_to_pin_index(struct hda_codec *codec,
 271                               struct hda_pcm_stream *hinfo)
 272 {
 273         struct hdmi_spec *spec = codec->spec;
 274         struct hdmi_spec_per_pin *per_pin;
 275         int pin_idx;
 276
 277         for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
 278                 per_pin = get_pin(spec, pin_idx);
 279                 if (per_pin->pcm &&
 280                         per_pin->pcm->pcm->stream == hinfo)
 281                         return pin_idx;
 282         }
 283
 284         codec_dbg(codec, "HDMI: hinfo %p not registered\n", hinfo);
 285         return -EINVAL;
 286 }
 287
 288 static struct hdmi_spec_per_pin *pcm_idx_to_pin(struct hdmi_spec *spec,
 289                                                 int pcm_idx)
 290 {
 291         int i;
 292         struct hdmi_spec_per_pin *per_pin;
 293
 294         for (i = 0; i < spec->num_pins; i++) {
 295                 per_pin = get_pin(spec, i);
 296                 if (per_pin->pcm_idx == pcm_idx)
 297                         return per_pin;
 298         }
 299         return NULL;
 300 }
 301
 302 static int cvt_nid_to_cvt_index(struct hda_codec *codec, hda_nid_t cvt_nid)
 303 {
 304         struct hdmi_spec *spec = codec->spec;
 305         int cvt_idx;
 306
 307         for (cvt_idx = 0; cvt_idx < spec->num_cvts; cvt_idx++)
 308                 if (get_cvt(spec, cvt_idx)->cvt_nid == cvt_nid)
 309                         return cvt_idx;
 310
 311         codec_warn(codec, "HDMI: cvt nid %d not registered\n", cvt_nid);
 312         return -EINVAL;
 313 }
 314
 315 static int hdmi_eld_ctl_info(struct snd_kcontrol *kcontrol,
 316                         struct snd_ctl_elem_info *uinfo)
 317 {
 318         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 319         struct hdmi_spec *spec = codec->spec;
 320         struct hdmi_spec_per_pin *per_pin;
 321         struct hdmi_eld *eld;
 322         int pcm_idx;
 323
 324         uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
 325
 326         pcm_idx = kcontrol->private_value;
 327         mutex_lock(&spec->pcm_lock);
 328         per_pin = pcm_idx_to_pin(spec, pcm_idx);
 329         if (!per_pin) {
 330                 /* no pin is bound to the pcm */
 331                 uinfo->count = 0;
 332                 goto unlock;
 333         }
 334         eld = &per_pin->sink_eld;
 335         uinfo->count = eld->eld_valid ? eld->eld_size : 0;
 336
 337  unlock:
 338         mutex_unlock(&spec->pcm_lock);
 339         return 0;
 340 }
 341
 342 static int hdmi_eld_ctl_get(struct snd_kcontrol *kcontrol,
 343                         struct snd_ctl_elem_value *ucontrol)
 344 {
 345         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 346         struct hdmi_spec *spec = codec->spec;
 347         struct hdmi_spec_per_pin *per_pin;
 348         struct hdmi_eld *eld;
 349         int pcm_idx;
 350         int err = 0;
 351
 352         pcm_idx = kcontrol->private_value;
 353         mutex_lock(&spec->pcm_lock);
 354         per_pin = pcm_idx_to_pin(spec, pcm_idx);
 355         if (!per_pin) {
 356                 /* no pin is bound to the pcm */
 357                 memset(ucontrol->value.bytes.data, 0,
 358                        ARRAY_SIZE(ucontrol->value.bytes.data));
 359                 goto unlock;
 360         }
 361
 362         eld = &per_pin->sink_eld;
 363         if (eld->eld_size > ARRAY_SIZE(ucontrol->value.bytes.data) ||
 364             eld->eld_size > ELD_MAX_SIZE) {
 365                 snd_BUG();
 366                 err = -EINVAL;
 367                 goto unlock;
 368         }
 369
 370         memset(ucontrol->value.bytes.data, 0,
 371                ARRAY_SIZE(ucontrol->value.bytes.data));
 372         if (eld->eld_valid)
 373                 memcpy(ucontrol->value.bytes.data, eld->eld_buffer,
 374                        eld->eld_size);
 375
 376  unlock:
 377         mutex_unlock(&spec->pcm_lock);
 378         return err;
 379 }
 380
 381 static const struct snd_kcontrol_new eld_bytes_ctl = {
 382         .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
 383         .iface = SNDRV_CTL_ELEM_IFACE_PCM,
 384         .name = "ELD",
 385         .info = hdmi_eld_ctl_info,
 386         .get = hdmi_eld_ctl_get,
 387 };
 388
 389 static int hdmi_create_eld_ctl(struct hda_codec *codec, int pcm_idx,
 390                         int device)
 391 {
 392         struct snd_kcontrol *kctl;
 393         struct hdmi_spec *spec = codec->spec;
 394         int err;
 395
 396         kctl = snd_ctl_new1(&eld_bytes_ctl, codec);
 397         if (!kctl)
 398                 return -ENOMEM;
 399         kctl->private_value = pcm_idx;
 400         kctl->id.device = device;
 401
 402         /* no pin nid is associated with the kctl now
 403          * tbd: associate pin nid to eld ctl later
 404          */
 405         err = snd_hda_ctl_add(codec, 0, kctl);
 406         if (err < 0)
 407                 return err;
 408
 409         get_hdmi_pcm(spec, pcm_idx)->eld_ctl = kctl;
 410         return 0;
 411 }
 412
 413 #ifdef BE_PARANOID
 414 static void hdmi_get_dip_index(struct hda_codec *codec, hda_nid_t pin_nid,
 415                                 int *packet_index, int *byte_index)
 416 {
 417         int val;
 418
 419         val = snd_hda_codec_read(codec, pin_nid, 0,
 420                                  AC_VERB_GET_HDMI_DIP_INDEX, 0);
 421
 422         *packet_index = val >> 5;
 423         *byte_index = val & 0x1f;
 424 }
 425 #endif
 426
 427 static void hdmi_set_dip_index(struct hda_codec *codec, hda_nid_t pin_nid,
 428                                 int packet_index, int byte_index)
 429 {
 430         int val;
 431
 432         val = (packet_index << 5) | (byte_index & 0x1f);
 433
 434         snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_INDEX, val);
 435 }
 436
 437 static void hdmi_write_dip_byte(struct hda_codec *codec, hda_nid_t pin_nid,
 438                                 unsigned char val)
 439 {
 440         snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_DATA, val);
 441 }
 442
 443 static void hdmi_init_pin(struct hda_codec *codec, hda_nid_t pin_nid)
 444 {
 445         struct hdmi_spec *spec = codec->spec;
 446         int pin_out;
 447
 448         /* Unmute */
 449         if (get_wcaps(codec, pin_nid) & AC_WCAP_OUT_AMP)
 450                 snd_hda_codec_write(codec, pin_nid, 0,
 451                                 AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE);
 452
 453         if (spec->dyn_pin_out)
 454                 /* Disable pin out until stream is active */
 455                 pin_out = 0;
 456         else
 457                 /* Enable pin out: some machines with GM965 gets broken output
 458                  * when the pin is disabled or changed while using with HDMI
 459                  */
 460                 pin_out = PIN_OUT;
 461
 462         snd_hda_codec_write(codec, pin_nid, 0,
 463                             AC_VERB_SET_PIN_WIDGET_CONTROL, pin_out);
 464 }
 465
 466 /*
 467  * ELD proc files
 468  */
 469
 470 #ifdef CONFIG_SND_PROC_FS
 471 static void print_eld_info(struct snd_info_entry *entry,
 472                            struct snd_info_buffer *buffer)
 473 {
 474         struct hdmi_spec_per_pin *per_pin = entry->private_data;
 475
 476         mutex_lock(&per_pin->lock);
 477         snd_hdmi_print_eld_info(&per_pin->sink_eld, buffer);
 478         mutex_unlock(&per_pin->lock);
 479 }
 480
 481 static void write_eld_info(struct snd_info_entry *entry,
 482                            struct snd_info_buffer *buffer)
 483 {
 484         struct hdmi_spec_per_pin *per_pin = entry->private_data;
 485
 486         mutex_lock(&per_pin->lock);
 487         snd_hdmi_write_eld_info(&per_pin->sink_eld, buffer);
 488         mutex_unlock(&per_pin->lock);
 489 }
 490
 491 static int eld_proc_new(struct hdmi_spec_per_pin *per_pin, int index)
 492 {
 493         char name[32];
 494         struct hda_codec *codec = per_pin->codec;
 495         struct snd_info_entry *entry;
 496         int err;
 497
 498         snprintf(name, sizeof(name), "eld#%d.%d", codec->addr, index);
 499         err = snd_card_proc_new(codec->card, name, &entry);
 500         if (err < 0)
 501                 return err;
 502
 503         snd_info_set_text_ops(entry, per_pin, print_eld_info);
 504         entry->c.text.write = write_eld_info;
 505         entry->mode |= 0200;
 506         per_pin->proc_entry = entry;
 507
 508         return 0;
 509 }
 510
 511 static void eld_proc_free(struct hdmi_spec_per_pin *per_pin)
 512 {
 513         if (!per_pin->codec->bus->shutdown) {
 514                 snd_info_free_entry(per_pin->proc_entry);
 515                 per_pin->proc_entry = NULL;
 516         }
 517 }
 518 #else
 519 static inline int eld_proc_new(struct hdmi_spec_per_pin *per_pin,
 520                                int index)
 521 {
 522         return 0;
 523 }
 524 static inline void eld_proc_free(struct hdmi_spec_per_pin *per_pin)
 525 {
 526 }
 527 #endif
 528
 529 /*
 530  * Audio InfoFrame routines
 531  */
 532
 533 /*
 534  * Enable Audio InfoFrame Transmission
 535  */
 536 static void hdmi_start_infoframe_trans(struct hda_codec *codec,
 537                                        hda_nid_t pin_nid)
 538 {
 539         hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
 540         snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_XMIT,
 541                                                 AC_DIPXMIT_BEST);
 542 }
 543
 544 /*
 545  * Disable Audio InfoFrame Transmission
 546  */
 547 static void hdmi_stop_infoframe_trans(struct hda_codec *codec,
 548                                       hda_nid_t pin_nid)
 549 {
 550         hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
 551         snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_XMIT,
 552                                                 AC_DIPXMIT_DISABLE);
 553 }
 554
 555 static void hdmi_debug_dip_size(struct hda_codec *codec, hda_nid_t pin_nid)
 556 {
 557 #ifdef CONFIG_SND_DEBUG_VERBOSE
 558         int i;
 559         int size;
 560
 561         size = snd_hdmi_get_eld_size(codec, pin_nid);
 562         codec_dbg(codec, "HDMI: ELD buf size is %d\n", size);
 563
 564         for (i = 0; i < 8; i++) {
 565                 size = snd_hda_codec_read(codec, pin_nid, 0,
 566                                                 AC_VERB_GET_HDMI_DIP_SIZE, i);
 567                 codec_dbg(codec, "HDMI: DIP GP[%d] buf size is %d\n", i, size);
 568         }
 569 #endif
 570 }
 571
 572 static void hdmi_clear_dip_buffers(struct hda_codec *codec, hda_nid_t pin_nid)
 573 {
 574 #ifdef BE_PARANOID
 575         int i, j;
 576         int size;
 577         int pi, bi;
 578         for (i = 0; i < 8; i++) {
 579                 size = snd_hda_codec_read(codec, pin_nid, 0,
 580                                                 AC_VERB_GET_HDMI_DIP_SIZE, i);
 581                 if (size == 0)
 582                         continue;
 583
 584                 hdmi_set_dip_index(codec, pin_nid, i, 0x0);
 585                 for (j = 1; j < 1000; j++) {
 586                         hdmi_write_dip_byte(codec, pin_nid, 0x0);
 587                         hdmi_get_dip_index(codec, pin_nid, &pi, &bi);
 588                         if (pi != i)
 589                                 codec_dbg(codec, "dip index %d: %d != %d\n",
 590                                                 bi, pi, i);
 591                         if (bi == 0) /* byte index wrapped around */
 592                                 break;
 593                 }
 594                 codec_dbg(codec,
 595                         "HDMI: DIP GP[%d] buf reported size=%d, written=%d\n",
 596                         i, size, j);
 597         }
 598 #endif
 599 }
 600
 601 static void hdmi_checksum_audio_infoframe(struct hdmi_audio_infoframe *hdmi_ai)
 602 {
 603         u8 *bytes = (u8 *)hdmi_ai;
 604         u8 sum = 0;
 605         int i;
 606
 607         hdmi_ai->checksum = 0;
 608
 609         for (i = 0; i < sizeof(*hdmi_ai); i++)
 610                 sum += bytes[i];
 611
 612         hdmi_ai->checksum = -sum;
 613 }
 614
 615 static void hdmi_fill_audio_infoframe(struct hda_codec *codec,
 616                                       hda_nid_t pin_nid,
 617                                       u8 *dip, int size)
 618 {
 619         int i;
 620
 621         hdmi_debug_dip_size(codec, pin_nid);
 622         hdmi_clear_dip_buffers(codec, pin_nid); /* be paranoid */
 623
 624         hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
 625         for (i = 0; i < size; i++)
 626                 hdmi_write_dip_byte(codec, pin_nid, dip[i]);
 627 }
 628
 629 static bool hdmi_infoframe_uptodate(struct hda_codec *codec, hda_nid_t pin_nid,
 630                                     u8 *dip, int size)
 631 {
 632         u8 val;
 633         int i;
 634
 635         if (snd_hda_codec_read(codec, pin_nid, 0, AC_VERB_GET_HDMI_DIP_XMIT, 0)
 636                                                             != AC_DIPXMIT_BEST)
 637                 return false;
 638
 639         hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
 640         for (i = 0; i < size; i++) {
 641                 val = snd_hda_codec_read(codec, pin_nid, 0,
 642                                          AC_VERB_GET_HDMI_DIP_DATA, 0);
 643                 if (val != dip[i])
 644                         return false;
 645         }
 646
 647         return true;
 648 }
 649
 650 static void hdmi_pin_setup_infoframe(struct hda_codec *codec,
 651                                      hda_nid_t pin_nid,
 652                                      int ca, int active_channels,
 653                                      int conn_type)
 654 {
 655         union audio_infoframe ai;
 656
 657         memset(&ai, 0, sizeof(ai));
 658         if (conn_type == 0) { /* HDMI */
 659                 struct hdmi_audio_infoframe *hdmi_ai = &ai.hdmi;
 660
 661                 hdmi_ai->type           = 0x84;
 662                 hdmi_ai->ver            = 0x01;
 663                 hdmi_ai->len            = 0x0a;
 664                 hdmi_ai->CC02_CT47      = active_channels - 1;
 665                 hdmi_ai->CA             = ca;
 666                 hdmi_checksum_audio_infoframe(hdmi_ai);
 667         } else if (conn_type == 1) { /* DisplayPort */
 668                 struct dp_audio_infoframe *dp_ai = &ai.dp;
 669
 670                 dp_ai->type             = 0x84;
 671                 dp_ai->len              = 0x1b;
 672                 dp_ai->ver              = 0x11 << 2;
 673                 dp_ai->CC02_CT47        = active_channels - 1;
 674                 dp_ai->CA               = ca;
 675         } else {
 676                 codec_dbg(codec, "HDMI: unknown connection type at pin %d\n",
 677                             pin_nid);
 678                 return;
 679         }
 680
 681         /*
 682          * sizeof(ai) is used instead of sizeof(*hdmi_ai) or
 683          * sizeof(*dp_ai) to avoid partial match/update problems when
 684          * the user switches between HDMI/DP monitors.
 685          */
 686         if (!hdmi_infoframe_uptodate(codec, pin_nid, ai.bytes,
 687                                         sizeof(ai))) {
 688                 codec_dbg(codec,
 689                           "hdmi_pin_setup_infoframe: pin=%d channels=%d ca=0x%02x\n",
 690                             pin_nid,
 691                             active_channels, ca);
 692                 hdmi_stop_infoframe_trans(codec, pin_nid);
 693                 hdmi_fill_audio_infoframe(codec, pin_nid,
 694                                             ai.bytes, sizeof(ai));
 695                 hdmi_start_infoframe_trans(codec, pin_nid);
 696         }
 697 }
 698
 699 static void hdmi_setup_audio_infoframe(struct hda_codec *codec,
 700                                        struct hdmi_spec_per_pin *per_pin,
 701                                        bool non_pcm)
 702 {
 703         struct hdmi_spec *spec = codec->spec;
 704         struct hdac_chmap *chmap = &spec->chmap;
 705         hda_nid_t pin_nid = per_pin->pin_nid;
 706         int channels = per_pin->channels;
 707         int active_channels;
 708         struct hdmi_eld *eld;
 709         int ca;
 710
 711         if (!channels)
 712                 return;
 713
 714         /* some HW (e.g. HSW+) needs reprogramming the amp at each time */
 715         if (get_wcaps(codec, pin_nid) & AC_WCAP_OUT_AMP)
 716                 snd_hda_codec_write(codec, pin_nid, 0,
 717                                             AC_VERB_SET_AMP_GAIN_MUTE,
 718                                             AMP_OUT_UNMUTE);
 719
 720         eld = &per_pin->sink_eld;
 721
 722         ca = snd_hdac_channel_allocation(&codec->core,
 723                         eld->info.spk_alloc, channels,
 724                         per_pin->chmap_set, non_pcm, per_pin->chmap);
 725
 726         active_channels = snd_hdac_get_active_channels(ca);
 727
 728         chmap->ops.set_channel_count(&codec->core, per_pin->cvt_nid,
 729                                                 active_channels);
 730
 731         /*
 732          * always configure channel mapping, it may have been changed by the
 733          * user in the meantime
 734          */
 735         snd_hdac_setup_channel_mapping(&spec->chmap,
 736                                 pin_nid, non_pcm, ca, channels,
 737                                 per_pin->chmap, per_pin->chmap_set);
 738
 739         spec->ops.pin_setup_infoframe(codec, pin_nid, ca, active_channels,
 740                                       eld->info.conn_type);
 741
 742         per_pin->non_pcm = non_pcm;
 743 }
 744
 745 /*
 746  * Unsolicited events
 747  */
 748
 749 static bool hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll);
 750
 751 static void check_presence_and_report(struct hda_codec *codec, hda_nid_t nid,
 752                                       int dev_id)
 753 {
 754         struct hdmi_spec *spec = codec->spec;
 755         int pin_idx = pin_id_to_pin_index(codec, nid, dev_id);
 756
 757         if (pin_idx < 0)
 758                 return;
 759         mutex_lock(&spec->pcm_lock);
 760         if (hdmi_present_sense(get_pin(spec, pin_idx), 1))
 761                 snd_hda_jack_report_sync(codec);
 762         mutex_unlock(&spec->pcm_lock);
 763 }
 764
 765 static void jack_callback(struct hda_codec *codec,
 766                           struct hda_jack_callback *jack)
 767 {
 768         /* hda_jack don't support DP MST */
 769         check_presence_and_report(codec, jack->nid, 0);
 770 }
 771
 772 static void hdmi_intrinsic_event(struct hda_codec *codec, unsigned int res)
 773 {
 774         int tag = res >> AC_UNSOL_RES_TAG_SHIFT;
 775         struct hda_jack_tbl *jack;
 776         int dev_entry = (res & AC_UNSOL_RES_DE) >> AC_UNSOL_RES_DE_SHIFT;
 777
 778         /*
 779          * assume DP MST uses dyn_pcm_assign and acomp and
 780          * never comes here
 781          * if DP MST supports unsol event, below code need
 782          * consider dev_entry
 783          */
 784         jack = snd_hda_jack_tbl_get_from_tag(codec, tag);
 785         if (!jack)
 786                 return;
 787         jack->jack_dirty = 1;
 788
 789         codec_dbg(codec,
 790                 "HDMI hot plug event: Codec=%d Pin=%d Device=%d Inactive=%d Presence_Detect=%d ELD_Valid=%d\n",
 791                 codec->addr, jack->nid, dev_entry, !!(res & AC_UNSOL_RES_IA),
 792                 !!(res & AC_UNSOL_RES_PD), !!(res & AC_UNSOL_RES_ELDV));
 793
 794         /* hda_jack don't support DP MST */
 795         check_presence_and_report(codec, jack->nid, 0);
 796 }
 797
 798 static void hdmi_non_intrinsic_event(struct hda_codec *codec, unsigned int res)
 799 {
 800         int tag = res >> AC_UNSOL_RES_TAG_SHIFT;
 801         int subtag = (res & AC_UNSOL_RES_SUBTAG) >> AC_UNSOL_RES_SUBTAG_SHIFT;
 802         int cp_state = !!(res & AC_UNSOL_RES_CP_STATE);
 803         int cp_ready = !!(res & AC_UNSOL_RES_CP_READY);
 804
 805         codec_info(codec,
 806                 "HDMI CP event: CODEC=%d TAG=%d SUBTAG=0x%x CP_STATE=%d CP_READY=%d\n",
 807                 codec->addr,
 808                 tag,
 809                 subtag,
 810                 cp_state,
 811                 cp_ready);
 812
 813         /* TODO */
 814         if (cp_state)
 815                 ;
 816         if (cp_ready)
 817                 ;
 818 }
 819
 820
 821 static void hdmi_unsol_event(struct hda_codec *codec, unsigned int res)
 822 {
 823         int tag = res >> AC_UNSOL_RES_TAG_SHIFT;
 824         int subtag = (res & AC_UNSOL_RES_SUBTAG) >> AC_UNSOL_RES_SUBTAG_SHIFT;
 825
 826         if (!snd_hda_jack_tbl_get_from_tag(codec, tag)) {
 827                 codec_dbg(codec, "Unexpected HDMI event tag 0x%x\n", tag);
 828                 return;
 829         }
 830
 831         if (subtag == 0)
 832                 hdmi_intrinsic_event(codec, res);
 833         else
 834                 hdmi_non_intrinsic_event(codec, res);
 835 }
 836
 837 static void haswell_verify_D0(struct hda_codec *codec,
 838                 hda_nid_t cvt_nid, hda_nid_t nid)
 839 {
 840         int pwr;
 841
 842         /* For Haswell, the converter 1/2 may keep in D3 state after bootup,
 843          * thus pins could only choose converter 0 for use. Make sure the
 844          * converters are in correct power state */
 845         if (!snd_hda_check_power_state(codec, cvt_nid, AC_PWRST_D0))
 846                 snd_hda_codec_write(codec, cvt_nid, 0, AC_VERB_SET_POWER_STATE, AC_PWRST_D0);
 847
 848         if (!snd_hda_check_power_state(codec, nid, AC_PWRST_D0)) {
 849                 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_POWER_STATE,
 850                                     AC_PWRST_D0);
 851                 msleep(40);
 852                 pwr = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_POWER_STATE, 0);
 853                 pwr = (pwr & AC_PWRST_ACTUAL) >> AC_PWRST_ACTUAL_SHIFT;
 854                 codec_dbg(codec, "Haswell HDMI audio: Power for pin 0x%x is now D%d\n", nid, pwr);
 855         }
 856 }
 857
 858 /*
 859  * Callbacks
 860  */
 861
 862 /* HBR should be Non-PCM, 8 channels */
 863 #define is_hbr_format(format) \
 864         ((format & AC_FMT_TYPE_NON_PCM) && (format & AC_FMT_CHAN_MASK) == 7)
 865
 866 static int hdmi_pin_hbr_setup(struct hda_codec *codec, hda_nid_t pin_nid,
 867                               bool hbr)
 868 {
 869         int pinctl, new_pinctl;
 870
 871         if (snd_hda_query_pin_caps(codec, pin_nid) & AC_PINCAP_HBR) {
 872                 pinctl = snd_hda_codec_read(codec, pin_nid, 0,
 873                                             AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
 874
 875                 if (pinctl < 0)
 876                         return hbr ? -EINVAL : 0;
 877
 878                 new_pinctl = pinctl & ~AC_PINCTL_EPT;
 879                 if (hbr)
 880                         new_pinctl |= AC_PINCTL_EPT_HBR;
 881                 else
 882                         new_pinctl |= AC_PINCTL_EPT_NATIVE;
 883
 884                 codec_dbg(codec,
 885                           "hdmi_pin_hbr_setup: NID=0x%x, %spinctl=0x%x\n",
 886                             pin_nid,
 887                             pinctl == new_pinctl ? "" : "new-",
 888                             new_pinctl);
 889
 890                 if (pinctl != new_pinctl)
 891                         snd_hda_codec_write(codec, pin_nid, 0,
 892                                             AC_VERB_SET_PIN_WIDGET_CONTROL,
 893                                             new_pinctl);
 894         } else if (hbr)
 895                 return -EINVAL;
 896
 897         return 0;
 898 }
 899
 900 static int hdmi_setup_stream(struct hda_codec *codec, hda_nid_t cvt_nid,
 901                               hda_nid_t pin_nid, u32 stream_tag, int format)
 902 {
 903         struct hdmi_spec *spec = codec->spec;
 904         unsigned int param;
 905         int err;
 906
 907         err = spec->ops.pin_hbr_setup(codec, pin_nid, is_hbr_format(format));
 908
 909         if (err) {
 910                 codec_dbg(codec, "hdmi_setup_stream: HBR is not supported\n");
 911                 return err;
 912         }
 913
 914         if (is_haswell_plus(codec)) {
 915
 916                 /*
 917                  * on recent platforms IEC Coding Type is required for HBR
 918                  * support, read current Digital Converter settings and set
 919                  * ICT bitfield if needed.
 920                  */
 921                 param = snd_hda_codec_read(codec, cvt_nid, 0,
 922                                            AC_VERB_GET_DIGI_CONVERT_1, 0);
 923
 924                 param = (param >> 16) & ~(AC_DIG3_ICT);
 925
 926                 /* on recent platforms ICT mode is required for HBR support */
 927                 if (is_hbr_format(format))
 928                         param |= 0x1;
 929
 930                 snd_hda_codec_write(codec, cvt_nid, 0,
 931                                     AC_VERB_SET_DIGI_CONVERT_3, param);
 932         }
 933
 934         snd_hda_codec_setup_stream(codec, cvt_nid, stream_tag, 0, format);
 935         return 0;
 936 }
 937
 938 /* Try to find an available converter
 939  * If pin_idx is less then zero, just try to find an available converter.
 940  * Otherwise, try to find an available converter and get the cvt mux index
 941  * of the pin.
 942  */
 943 static int hdmi_choose_cvt(struct hda_codec *codec,
 944                            int pin_idx, int *cvt_id)
 945 {
 946         struct hdmi_spec *spec = codec->spec;
 947         struct hdmi_spec_per_pin *per_pin;
 948         struct hdmi_spec_per_cvt *per_cvt = NULL;
 949         int cvt_idx, mux_idx = 0;
 950
 951         /* pin_idx < 0 means no pin will be bound to the converter */
 952         if (pin_idx < 0)
 953                 per_pin = NULL;
 954         else
 955                 per_pin = get_pin(spec, pin_idx);
 956
 957         /* Dynamically assign converter to stream */
 958         for (cvt_idx = 0; cvt_idx < spec->num_cvts; cvt_idx++) {
 959                 per_cvt = get_cvt(spec, cvt_idx);
 960
 961                 /* Must not already be assigned */
 962                 if (per_cvt->assigned)
 963                         continue;
 964                 if (per_pin == NULL)
 965                         break;
 966                 /* Must be in pin's mux's list of converters */
 967                 for (mux_idx = 0; mux_idx < per_pin->num_mux_nids; mux_idx++)
 968                         if (per_pin->mux_nids[mux_idx] == per_cvt->cvt_nid)
 969                                 break;
 970                 /* Not in mux list */
 971                 if (mux_idx == per_pin->num_mux_nids)
 972                         continue;
 973                 break;
 974         }
 975
 976         /* No free converters */
 977         if (cvt_idx == spec->num_cvts)
 978                 return -EBUSY;
 979
 980         if (per_pin != NULL)
 981                 per_pin->mux_idx = mux_idx;
 982
 983         if (cvt_id)
 984                 *cvt_id = cvt_idx;
 985
 986         return 0;
 987 }
 988
 989 /* Assure the pin select the right convetor */
 990 static void intel_verify_pin_cvt_connect(struct hda_codec *codec,
 991                         struct hdmi_spec_per_pin *per_pin)
 992 {
 993         hda_nid_t pin_nid = per_pin->pin_nid;
 994         int mux_idx, curr;
 995
 996         mux_idx = per_pin->mux_idx;
 997         curr = snd_hda_codec_read(codec, pin_nid, 0,
 998                                           AC_VERB_GET_CONNECT_SEL, 0);
 999         if (curr != mux_idx)
1000                 snd_hda_codec_write_cache(codec, pin_nid, 0,
1001                                             AC_VERB_SET_CONNECT_SEL,
1002                                             mux_idx);
1003 }
1004
1005 /* get the mux index for the converter of the pins
1006  * converter's mux index is the same for all pins on Intel platform
1007  */
1008 static int intel_cvt_id_to_mux_idx(struct hdmi_spec *spec,
1009                         hda_nid_t cvt_nid)
1010 {
1011         int i;
1012
1013         for (i = 0; i < spec->num_cvts; i++)
1014                 if (spec->cvt_nids[i] == cvt_nid)
1015                         return i;
1016         return -EINVAL;
1017 }
1018
1019 /* Intel HDMI workaround to fix audio routing issue:
1020  * For some Intel display codecs, pins share the same connection list.
1021  * So a conveter can be selected by multiple pins and playback on any of these
1022  * pins will generate sound on the external display, because audio flows from
1023  * the same converter to the display pipeline. Also muting one pin may make
1024  * other pins have no sound output.
1025  * So this function assures that an assigned converter for a pin is not selected
1026  * by any other pins.
1027  */
1028 static void intel_not_share_assigned_cvt(struct hda_codec *codec,
1029                                          hda_nid_t pin_nid,
1030                                          int dev_id, int mux_idx)
1031 {
1032         struct hdmi_spec *spec = codec->spec;
1033         hda_nid_t nid;
1034         int cvt_idx, curr;
1035         struct hdmi_spec_per_cvt *per_cvt;
1036         struct hdmi_spec_per_pin *per_pin;
1037         int pin_idx;
1038
1039         /* configure the pins connections */
1040         for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
1041                 int dev_id_saved;
1042                 int dev_num;
1043
1044                 per_pin = get_pin(spec, pin_idx);
1045                 /*
1046                  * pin not connected to monitor
1047                  * no need to operate on it
1048                  */
1049                 if (!per_pin->pcm)
1050                         continue;
1051
1052                 if ((per_pin->pin_nid == pin_nid) &&
1053                         (per_pin->dev_id == dev_id))
1054                         continue;
1055
1056                 /*
1057                  * if per_pin->dev_id >= dev_num,
1058                  * snd_hda_get_dev_select() will fail,
1059                  * and the following operation is unpredictable.
1060                  * So skip this situation.
1061                  */
1062                 dev_num = snd_hda_get_num_devices(codec, per_pin->pin_nid) + 1;
1063                 if (per_pin->dev_id >= dev_num)
1064                         continue;
1065
1066                 nid = per_pin->pin_nid;
1067
1068                 /*
1069                  * Calling this function should not impact
1070                  * on the device entry selection
1071                  * So let's save the dev id for each pin,
1072                  * and restore it when return
1073                  */
1074                 dev_id_saved = snd_hda_get_dev_select(codec, nid);
1075                 snd_hda_set_dev_select(codec, nid, per_pin->dev_id);
1076                 curr = snd_hda_codec_read(codec, nid, 0,
1077                                           AC_VERB_GET_CONNECT_SEL, 0);
1078                 if (curr != mux_idx) {
1079                         snd_hda_set_dev_select(codec, nid, dev_id_saved);
1080                         continue;
1081                 }
1082
1083
1084                 /* choose an unassigned converter. The conveters in the
1085                  * connection list are in the same order as in the codec.
1086                  */
1087                 for (cvt_idx = 0; cvt_idx < spec->num_cvts; cvt_idx++) {
1088                         per_cvt = get_cvt(spec, cvt_idx);
1089                         if (!per_cvt->assigned) {
1090                                 codec_dbg(codec,
1091                                           "choose cvt %d for pin nid %d\n",
1092                                         cvt_idx, nid);
1093                                 snd_hda_codec_write_cache(codec, nid, 0,
1094                                             AC_VERB_SET_CONNECT_SEL,
1095                                             cvt_idx);
1096                                 break;
1097                         }
1098                 }
1099                 snd_hda_set_dev_select(codec, nid, dev_id_saved);
1100         }
1101 }
1102
1103 /* A wrapper of intel_not_share_asigned_cvt() */
1104 static void intel_not_share_assigned_cvt_nid(struct hda_codec *codec,
1105                         hda_nid_t pin_nid, int dev_id, hda_nid_t cvt_nid)
1106 {
1107         int mux_idx;
1108         struct hdmi_spec *spec = codec->spec;
1109
1110         /* On Intel platform, the mapping of converter nid to
1111          * mux index of the pins are always the same.
1112          * The pin nid may be 0, this means all pins will not
1113          * share the converter.
1114          */
1115         mux_idx = intel_cvt_id_to_mux_idx(spec, cvt_nid);
1116         if (mux_idx >= 0)
1117                 intel_not_share_assigned_cvt(codec, pin_nid, dev_id, mux_idx);
1118 }
1119
1120 /* skeleton caller of pin_cvt_fixup ops */
1121 static void pin_cvt_fixup(struct hda_codec *codec,
1122                           struct hdmi_spec_per_pin *per_pin,
1123                           hda_nid_t cvt_nid)
1124 {
1125         struct hdmi_spec *spec = codec->spec;
1126
1127         if (spec->ops.pin_cvt_fixup)
1128                 spec->ops.pin_cvt_fixup(codec, per_pin, cvt_nid);
1129 }
1130
1131 /* called in hdmi_pcm_open when no pin is assigned to the PCM
1132  * in dyn_pcm_assign mode.
1133  */
1134 static int hdmi_pcm_open_no_pin(struct hda_pcm_stream *hinfo,
1135                          struct hda_codec *codec,
1136                          struct snd_pcm_substream *substream)
1137 {
1138         struct hdmi_spec *spec = codec->spec;
1139         struct snd_pcm_runtime *runtime = substream->runtime;
1140         int cvt_idx, pcm_idx;
1141         struct hdmi_spec_per_cvt *per_cvt = NULL;
1142         int err;
1143
1144         pcm_idx = hinfo_to_pcm_index(codec, hinfo);
1145         if (pcm_idx < 0)
1146                 return -EINVAL;
1147
1148         err = hdmi_choose_cvt(codec, -1, &cvt_idx);
1149         if (err)
1150                 return err;
1151
1152         per_cvt = get_cvt(spec, cvt_idx);
1153         per_cvt->assigned = 1;
1154         hinfo->nid = per_cvt->cvt_nid;
1155
1156         pin_cvt_fixup(codec, NULL, per_cvt->cvt_nid);
1157
1158         set_bit(pcm_idx, &spec->pcm_in_use);
1159         /* todo: setup spdif ctls assign */
1160
1161         /* Initially set the converter's capabilities */
1162         hinfo->channels_min = per_cvt->channels_min;
1163         hinfo->channels_max = per_cvt->channels_max;
1164         hinfo->rates = per_cvt->rates;
1165         hinfo->formats = per_cvt->formats;
1166         hinfo->maxbps = per_cvt->maxbps;
1167
1168         /* Store the updated parameters */
1169         runtime->hw.channels_min = hinfo->channels_min;
1170         runtime->hw.channels_max = hinfo->channels_max;
1171         runtime->hw.formats = hinfo->formats;
1172         runtime->hw.rates = hinfo->rates;
1173
1174         snd_pcm_hw_constraint_step(substream->runtime, 0,
1175                                    SNDRV_PCM_HW_PARAM_CHANNELS, 2);
1176         return 0;
1177 }
1178
1179 /*
1180  * HDA PCM callbacks
1181  */
1182 static int hdmi_pcm_open(struct hda_pcm_stream *hinfo,
1183                          struct hda_codec *codec,
1184                          struct snd_pcm_substream *substream)
1185 {
1186         struct hdmi_spec *spec = codec->spec;
1187         struct snd_pcm_runtime *runtime = substream->runtime;
1188         int pin_idx, cvt_idx, pcm_idx;
1189         struct hdmi_spec_per_pin *per_pin;
1190         struct hdmi_eld *eld;
1191         struct hdmi_spec_per_cvt *per_cvt = NULL;
1192         int err;
1193
1194         /* Validate hinfo */
1195         pcm_idx = hinfo_to_pcm_index(codec, hinfo);
1196         if (pcm_idx < 0)
1197                 return -EINVAL;
1198
1199         mutex_lock(&spec->pcm_lock);
1200         pin_idx = hinfo_to_pin_index(codec, hinfo);
1201         if (!spec->dyn_pcm_assign) {
1202                 if (snd_BUG_ON(pin_idx < 0)) {
1203                         err = -EINVAL;
1204                         goto unlock;
1205                 }
1206         } else {
1207                 /* no pin is assigned to the PCM
1208                  * PA need pcm open successfully when probe
1209                  */
1210                 if (pin_idx < 0) {
1211                         err = hdmi_pcm_open_no_pin(hinfo, codec, substream);
1212                         goto unlock;
1213                 }
1214         }
1215
1216         err = hdmi_choose_cvt(codec, pin_idx, &cvt_idx);
1217         if (err < 0)
1218                 goto unlock;
1219
1220         per_cvt = get_cvt(spec, cvt_idx);
1221         /* Claim converter */
1222         per_cvt->assigned = 1;
1223
1224         set_bit(pcm_idx, &spec->pcm_in_use);
1225         per_pin = get_pin(spec, pin_idx);
1226         per_pin->cvt_nid = per_cvt->cvt_nid;
1227         hinfo->nid = per_cvt->cvt_nid;
1228
1229         snd_hda_set_dev_select(codec, per_pin->pin_nid, per_pin->dev_id);
1230         snd_hda_codec_write_cache(codec, per_pin->pin_nid, 0,
1231                             AC_VERB_SET_CONNECT_SEL,
1232                             per_pin->mux_idx);
1233
1234         /* configure unused pins to choose other converters */
1235         pin_cvt_fixup(codec, per_pin, 0);
1236
1237         snd_hda_spdif_ctls_assign(codec, pcm_idx, per_cvt->cvt_nid);
1238
1239         /* Initially set the converter's capabilities */
1240         hinfo->channels_min = per_cvt->channels_min;
1241         hinfo->channels_max = per_cvt->channels_max;
1242         hinfo->rates = per_cvt->rates;
1243         hinfo->formats = per_cvt->formats;
1244         hinfo->maxbps = per_cvt->maxbps;
1245
1246         eld = &per_pin->sink_eld;
1247         /* Restrict capabilities by ELD if this isn't disabled */
1248         if (!static_hdmi_pcm && eld->eld_valid) {
1249                 snd_hdmi_eld_update_pcm_info(&eld->info, hinfo);
1250                 if (hinfo->channels_min > hinfo->channels_max ||
1251                     !hinfo->rates || !hinfo->formats) {
1252                         per_cvt->assigned = 0;
1253                         hinfo->nid = 0;
1254                         snd_hda_spdif_ctls_unassign(codec, pcm_idx);
1255                         err = -ENODEV;
1256                         goto unlock;
1257                 }
1258         }
1259
1260         /* Store the updated parameters */
1261         runtime->hw.channels_min = hinfo->channels_min;
1262         runtime->hw.channels_max = hinfo->channels_max;
1263         runtime->hw.formats = hinfo->formats;
1264         runtime->hw.rates = hinfo->rates;
1265
1266         snd_pcm_hw_constraint_step(substream->runtime, 0,
1267                                    SNDRV_PCM_HW_PARAM_CHANNELS, 2);
1268  unlock:
1269         mutex_unlock(&spec->pcm_lock);
1270         return err;
1271 }
1272
1273 /*
1274  * HDA/HDMI auto parsing
1275  */
1276 static int hdmi_read_pin_conn(struct hda_codec *codec, int pin_idx)
1277 {
1278         struct hdmi_spec *spec = codec->spec;
1279         struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
1280         hda_nid_t pin_nid = per_pin->pin_nid;
1281
1282         if (!(get_wcaps(codec, pin_nid) & AC_WCAP_CONN_LIST)) {
1283                 codec_warn(codec,
1284                            "HDMI: pin %d wcaps %#x does not support connection list\n",
1285                            pin_nid, get_wcaps(codec, pin_nid));
1286                 return -EINVAL;
1287         }
1288
1289         /* all the device entries on the same pin have the same conn list */
1290         per_pin->num_mux_nids = snd_hda_get_connections(codec, pin_nid,
1291                                                         per_pin->mux_nids,
1292                                                         HDA_MAX_CONNECTIONS);
1293
1294         return 0;
1295 }
1296
1297 static int hdmi_find_pcm_slot(struct hdmi_spec *spec,
1298                                 struct hdmi_spec_per_pin *per_pin)
1299 {
1300         int i;
1301
1302         /* try the prefer PCM */
1303         if (!test_bit(per_pin->pin_nid_idx, &spec->pcm_bitmap))
1304                 return per_pin->pin_nid_idx;
1305
1306         /* have a second try; check the "reserved area" over num_pins */
1307         for (i = spec->num_nids; i < spec->pcm_used; i++) {
1308                 if (!test_bit(i, &spec->pcm_bitmap))
1309                         return i;
1310         }
1311
1312         /* the last try; check the empty slots in pins */
1313         for (i = 0; i < spec->num_nids; i++) {
1314                 if (!test_bit(i, &spec->pcm_bitmap))
1315                         return i;
1316         }
1317         return -EBUSY;
1318 }
1319
1320 static void hdmi_attach_hda_pcm(struct hdmi_spec *spec,
1321                                 struct hdmi_spec_per_pin *per_pin)
1322 {
1323         int idx;
1324
1325         /* pcm already be attached to the pin */
1326         if (per_pin->pcm)
1327                 return;
1328         idx = hdmi_find_pcm_slot(spec, per_pin);
1329         if (idx == -EBUSY)
1330                 return;
1331         per_pin->pcm_idx = idx;
1332         per_pin->pcm = get_hdmi_pcm(spec, idx);
1333         set_bit(idx, &spec->pcm_bitmap);
1334 }
1335
1336 static void hdmi_detach_hda_pcm(struct hdmi_spec *spec,
1337                                 struct hdmi_spec_per_pin *per_pin)
1338 {
1339         int idx;
1340
1341         /* pcm already be detached from the pin */
1342         if (!per_pin->pcm)
1343                 return;
1344         idx = per_pin->pcm_idx;
1345         per_pin->pcm_idx = -1;
1346         per_pin->pcm = NULL;
1347         if (idx >= 0 && idx < spec->pcm_used)
1348                 clear_bit(idx, &spec->pcm_bitmap);
1349 }
1350
1351 static int hdmi_get_pin_cvt_mux(struct hdmi_spec *spec,
1352                 struct hdmi_spec_per_pin *per_pin, hda_nid_t cvt_nid)
1353 {
1354         int mux_idx;
1355
1356         for (mux_idx = 0; mux_idx < per_pin->num_mux_nids; mux_idx++)
1357                 if (per_pin->mux_nids[mux_idx] == cvt_nid)
1358                         break;
1359         return mux_idx;
1360 }
1361
1362 static bool check_non_pcm_per_cvt(struct hda_codec *codec, hda_nid_t cvt_nid);
1363
1364 static void hdmi_pcm_setup_pin(struct hdmi_spec *spec,
1365                            struct hdmi_spec_per_pin *per_pin)
1366 {
1367         struct hda_codec *codec = per_pin->codec;
1368         struct hda_pcm *pcm;
1369         struct hda_pcm_stream *hinfo;
1370         struct snd_pcm_substream *substream;
1371         int mux_idx;
1372         bool non_pcm;
1373
1374         if (per_pin->pcm_idx >= 0 && per_pin->pcm_idx < spec->pcm_used)
1375                 pcm = get_pcm_rec(spec, per_pin->pcm_idx);
1376         else
1377                 return;
1378         if (!pcm->pcm)
1379                 return;
1380         if (!test_bit(per_pin->pcm_idx, &spec->pcm_in_use))
1381                 return;
1382
1383         /* hdmi audio only uses playback and one substream */
1384         hinfo = pcm->stream;
1385         substream = pcm->pcm->streams[0].substream;
1386
1387         per_pin->cvt_nid = hinfo->nid;
1388
1389         mux_idx = hdmi_get_pin_cvt_mux(spec, per_pin, hinfo->nid);
1390         if (mux_idx < per_pin->num_mux_nids) {
1391                 snd_hda_set_dev_select(codec, per_pin->pin_nid,
1392                                    per_pin->dev_id);
1393                 snd_hda_codec_write_cache(codec, per_pin->pin_nid, 0,
1394                                 AC_VERB_SET_CONNECT_SEL,
1395                                 mux_idx);
1396         }
1397         snd_hda_spdif_ctls_assign(codec, per_pin->pcm_idx, hinfo->nid);
1398
1399         non_pcm = check_non_pcm_per_cvt(codec, hinfo->nid);
1400         if (substream->runtime)
1401                 per_pin->channels = substream->runtime->channels;
1402         per_pin->setup = true;
1403         per_pin->mux_idx = mux_idx;
1404
1405         hdmi_setup_audio_infoframe(codec, per_pin, non_pcm);
1406 }
1407
1408 static void hdmi_pcm_reset_pin(struct hdmi_spec *spec,
1409                            struct hdmi_spec_per_pin *per_pin)
1410 {
1411         if (per_pin->pcm_idx >= 0 && per_pin->pcm_idx < spec->pcm_used)
1412                 snd_hda_spdif_ctls_unassign(per_pin->codec, per_pin->pcm_idx);
1413
1414         per_pin->chmap_set = false;
1415         memset(per_pin->chmap, 0, sizeof(per_pin->chmap));
1416
1417         per_pin->setup = false;
1418         per_pin->channels = 0;
1419 }
1420
1421 /* update per_pin ELD from the given new ELD;
1422  * setup info frame and notification accordingly
1423  */
1424 static void update_eld(struct hda_codec *codec,
1425                        struct hdmi_spec_per_pin *per_pin,
1426                        struct hdmi_eld *eld)
1427 {
1428         struct hdmi_eld *pin_eld = &per_pin->sink_eld;
1429         struct hdmi_spec *spec = codec->spec;
1430         bool old_eld_valid = pin_eld->eld_valid;
1431         bool eld_changed;
1432         int pcm_idx = -1;
1433
1434         /* for monitor disconnection, save pcm_idx firstly */
1435         pcm_idx = per_pin->pcm_idx;
1436         if (spec->dyn_pcm_assign) {
1437                 if (eld->eld_valid) {
1438                         hdmi_attach_hda_pcm(spec, per_pin);
1439                         hdmi_pcm_setup_pin(spec, per_pin);
1440                 } else {
1441                         hdmi_pcm_reset_pin(spec, per_pin);
1442                         hdmi_detach_hda_pcm(spec, per_pin);
1443                 }
1444         }
1445         /* if pcm_idx == -1, it means this is in monitor connection event
1446          * we can get the correct pcm_idx now.
1447          */
1448         if (pcm_idx == -1)
1449                 pcm_idx = per_pin->pcm_idx;
1450
1451         if (eld->eld_valid)
1452                 snd_hdmi_show_eld(codec, &eld->info);
1453
1454         eld_changed = (pin_eld->eld_valid != eld->eld_valid);
1455         if (eld->eld_valid && pin_eld->eld_valid)
1456                 if (pin_eld->eld_size != eld->eld_size ||
1457                     memcmp(pin_eld->eld_buffer, eld->eld_buffer,
1458                            eld->eld_size) != 0)
1459                         eld_changed = true;
1460
1461         pin_eld->monitor_present = eld->monitor_present;
1462         pin_eld->eld_valid = eld->eld_valid;
1463         pin_eld->eld_size = eld->eld_size;
1464         if (eld->eld_valid)
1465                 memcpy(pin_eld->eld_buffer, eld->eld_buffer, eld->eld_size);
1466         pin_eld->info = eld->info;
1467
1468         /*
1469          * Re-setup pin and infoframe. This is needed e.g. when
1470          * - sink is first plugged-in
1471          * - transcoder can change during stream playback on Haswell
1472          *   and this can make HW reset converter selection on a pin.
1473          */
1474         if (eld->eld_valid && !old_eld_valid && per_pin->setup) {
1475                 pin_cvt_fixup(codec, per_pin, 0);
1476                 hdmi_setup_audio_infoframe(codec, per_pin, per_pin->non_pcm);
1477         }
1478
1479         if (eld_changed && pcm_idx >= 0)
1480                 snd_ctl_notify(codec->card,
1481                                SNDRV_CTL_EVENT_MASK_VALUE |
1482                                SNDRV_CTL_EVENT_MASK_INFO,
1483                                &get_hdmi_pcm(spec, pcm_idx)->eld_ctl->id);
1484 }
1485
1486 /* update ELD and jack state via HD-audio verbs */
1487 static bool hdmi_present_sense_via_verbs(struct hdmi_spec_per_pin *per_pin,
1488                                          int repoll)
1489 {
1490         struct hda_jack_tbl *jack;
1491         struct hda_codec *codec = per_pin->codec;
1492         struct hdmi_spec *spec = codec->spec;
1493         struct hdmi_eld *eld = &spec->temp_eld;
1494         hda_nid_t pin_nid = per_pin->pin_nid;
1495         /*
1496          * Always execute a GetPinSense verb here, even when called from
1497          * hdmi_intrinsic_event; for some NVIDIA HW, the unsolicited
1498          * response's PD bit is not the real PD value, but indicates that
1499          * the real PD value changed. An older version of the HD-audio
1500          * specification worked this way. Hence, we just ignore the data in
1501          * the unsolicited response to avoid custom WARs.
1502          */
1503         int present;
1504         bool ret;
1505         bool do_repoll = false;
1506
1507         present = snd_hda_pin_sense(codec, pin_nid);
1508
1509         mutex_lock(&per_pin->lock);
1510         eld->monitor_present = !!(present & AC_PINSENSE_PRESENCE);
1511         if (eld->monitor_present)
1512                 eld->eld_valid  = !!(present & AC_PINSENSE_ELDV);
1513         else
1514                 eld->eld_valid = false;
1515
1516         codec_dbg(codec,
1517                 "HDMI status: Codec=%d Pin=%d Presence_Detect=%d ELD_Valid=%d\n",
1518                 codec->addr, pin_nid, eld->monitor_present, eld->eld_valid);
1519
1520         if (eld->eld_valid) {
1521                 if (spec->ops.pin_get_eld(codec, pin_nid, eld->eld_buffer,
1522                                                      &eld->eld_size) < 0)
1523                         eld->eld_valid = false;
1524                 else {
1525                         if (snd_hdmi_parse_eld(codec, &eld->info, eld->eld_buffer,
1526                                                     eld->eld_size) < 0)
1527                                 eld->eld_valid = false;
1528                 }
1529                 if (!eld->eld_valid && repoll)
1530                         do_repoll = true;
1531         }
1532
1533         if (do_repoll)
1534                 schedule_delayed_work(&per_pin->work, msecs_to_jiffies(300));
1535         else
1536                 update_eld(codec, per_pin, eld);
1537
1538         ret = !repoll || !eld->monitor_present || eld->eld_valid;
1539
1540         jack = snd_hda_jack_tbl_get(codec, pin_nid);
1541         if (jack) {
1542                 jack->block_report = !ret;
1543                 jack->pin_sense = (eld->monitor_present && eld->eld_valid) ?
1544                         AC_PINSENSE_PRESENCE : 0;
1545         }
1546         mutex_unlock(&per_pin->lock);
1547         return ret;
1548 }
1549
1550 static struct snd_jack *pin_idx_to_jack(struct hda_codec *codec,
1551                                  struct hdmi_spec_per_pin *per_pin)
1552 {
1553         struct hdmi_spec *spec = codec->spec;
1554         struct snd_jack *jack = NULL;
1555         struct hda_jack_tbl *jack_tbl;
1556
1557         /* if !dyn_pcm_assign, get jack from hda_jack_tbl
1558          * in !dyn_pcm_assign case, spec->pcm_rec[].jack is not
1559          * NULL even after snd_hda_jack_tbl_clear() is called to
1560          * free snd_jack. This may cause access invalid memory
1561          * when calling snd_jack_report
1562          */
1563         if (per_pin->pcm_idx >= 0 && spec->dyn_pcm_assign)
1564                 jack = spec->pcm_rec[per_pin->pcm_idx].jack;
1565         else if (!spec->dyn_pcm_assign) {
1566                 /*
1567                  * jack tbl doesn't support DP MST
1568                  * DP MST will use dyn_pcm_assign,
1569                  * so DP MST will never come here
1570                  */
1571                 jack_tbl = snd_hda_jack_tbl_get(codec, per_pin->pin_nid);
1572                 if (jack_tbl)
1573                         jack = jack_tbl->jack;
1574         }
1575         return jack;
1576 }
1577
1578 /* update ELD and jack state via audio component */
1579 static void sync_eld_via_acomp(struct hda_codec *codec,
1580                                struct hdmi_spec_per_pin *per_pin)
1581 {
1582         struct hdmi_spec *spec = codec->spec;
1583         struct hdmi_eld *eld = &spec->temp_eld;
1584         struct snd_jack *jack = NULL;
1585         int size;
1586
1587         mutex_lock(&per_pin->lock);
1588         eld->monitor_present = false;
1589         size = snd_hdac_acomp_get_eld(&codec->core, per_pin->pin_nid,
1590                                       per_pin->dev_id, &eld->monitor_present,
1591                                       eld->eld_buffer, ELD_MAX_SIZE);
1592         if (size > 0) {
1593                 size = min(size, ELD_MAX_SIZE);
1594                 if (snd_hdmi_parse_eld(codec, &eld->info,
1595                                        eld->eld_buffer, size) < 0)
1596                         size = -EINVAL;
1597         }
1598
1599         if (size > 0) {
1600                 eld->eld_valid = true;
1601                 eld->eld_size = size;
1602         } else {
1603                 eld->eld_valid = false;
1604                 eld->eld_size = 0;
1605         }
1606
1607         /* pcm_idx >=0 before update_eld() means it is in monitor
1608          * disconnected event. Jack must be fetched before update_eld()
1609          */
1610         jack = pin_idx_to_jack(codec, per_pin);
1611         update_eld(codec, per_pin, eld);
1612         if (jack == NULL)
1613                 jack = pin_idx_to_jack(codec, per_pin);
1614         if (jack == NULL)
1615                 goto unlock;
1616         snd_jack_report(jack,
1617                         (eld->monitor_present && eld->eld_valid) ?
1618                                 SND_JACK_AVOUT : 0);
1619  unlock:
1620         mutex_unlock(&per_pin->lock);
1621 }
1622
1623 static bool hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll)
1624 {
1625         struct hda_codec *codec = per_pin->codec;
1626         int ret;
1627
1628         /* no temporary power up/down needed for component notifier */
1629         if (!codec_has_acomp(codec)) {
1630                 ret = snd_hda_power_up_pm(codec);
1631                 if (ret < 0 && pm_runtime_suspended(hda_codec_dev(codec))) {
1632                         snd_hda_power_down_pm(codec);
1633                         return false;
1634                 }
1635         }
1636
1637         if (codec_has_acomp(codec)) {
1638                 sync_eld_via_acomp(codec, per_pin);
1639                 ret = false; /* don't call snd_hda_jack_report_sync() */
1640         } else {
1641                 ret = hdmi_present_sense_via_verbs(per_pin, repoll);
1642         }
1643
1644         if (!codec_has_acomp(codec))
1645                 snd_hda_power_down_pm(codec);
1646
1647         return ret;
1648 }
1649
1650 static void hdmi_repoll_eld(struct work_struct *work)
1651 {
1652         struct hdmi_spec_per_pin *per_pin =
1653         container_of(to_delayed_work(work), struct hdmi_spec_per_pin, work);
1654         struct hda_codec *codec = per_pin->codec;
1655         struct hdmi_spec *spec = codec->spec;
1656         struct hda_jack_tbl *jack;
1657
1658         jack = snd_hda_jack_tbl_get(codec, per_pin->pin_nid);
1659         if (jack)
1660                 jack->jack_dirty = 1;
1661
1662         if (per_pin->repoll_count++ > 6)
1663                 per_pin->repoll_count = 0;
1664
1665         mutex_lock(&spec->pcm_lock);
1666         if (hdmi_present_sense(per_pin, per_pin->repoll_count))
1667                 snd_hda_jack_report_sync(per_pin->codec);
1668         mutex_unlock(&spec->pcm_lock);
1669 }
1670
1671 static void intel_haswell_fixup_connect_list(struct hda_codec *codec,
1672                                              hda_nid_t nid);
1673
1674 static int hdmi_add_pin(struct hda_codec *codec, hda_nid_t pin_nid)
1675 {
1676         struct hdmi_spec *spec = codec->spec;
1677         unsigned int caps, config;
1678         int pin_idx;
1679         struct hdmi_spec_per_pin *per_pin;
1680         int err;
1681         int dev_num, i;
1682
1683         caps = snd_hda_query_pin_caps(codec, pin_nid);
1684         if (!(caps & (AC_PINCAP_HDMI | AC_PINCAP_DP)))
1685                 return 0;
1686
1687         /*
1688          * For DP MST audio, Configuration Default is the same for
1689          * all device entries on the same pin
1690          */
1691         config = snd_hda_codec_get_pincfg(codec, pin_nid);
1692         if (get_defcfg_connect(config) == AC_JACK_PORT_NONE)
1693                 return 0;
1694
1695         /*
1696          * To simplify the implementation, malloc all
1697          * the virtual pins in the initialization statically
1698          */
1699         if (is_haswell_plus(codec)) {
1700                 /*
1701                  * On Intel platforms, device entries number is
1702                  * changed dynamically. If there is a DP MST
1703                  * hub connected, the device entries number is 3.
1704                  * Otherwise, it is 1.
1705                  * Here we manually set dev_num to 3, so that
1706                  * we can initialize all the device entries when
1707                  * bootup statically.
1708                  */
1709                 dev_num = 3;
1710                 spec->dev_num = 3;
1711         } else if (spec->dyn_pcm_assign && codec->dp_mst) {
1712                 dev_num = snd_hda_get_num_devices(codec, pin_nid) + 1;
1713                 /*
1714                  * spec->dev_num is the maxinum number of device entries
1715                  * among all the pins
1716                  */
1717                 spec->dev_num = (spec->dev_num > dev_num) ?
1718                         spec->dev_num : dev_num;
1719         } else {
1720                 /*
1721                  * If the platform doesn't support DP MST,
1722                  * manually set dev_num to 1. This means
1723                  * the pin has only one device entry.
1724                  */
1725                 dev_num = 1;
1726                 spec->dev_num = 1;
1727         }
1728
1729         for (i = 0; i < dev_num; i++) {
1730                 pin_idx = spec->num_pins;
1731                 per_pin = snd_array_new(&spec->pins);
1732
1733                 if (!per_pin)
1734                         return -ENOMEM;
1735
1736                 if (spec->dyn_pcm_assign) {
1737                         per_pin->pcm = NULL;
1738                         per_pin->pcm_idx = -1;
1739                 } else {
1740                         per_pin->pcm = get_hdmi_pcm(spec, pin_idx);
1741                         per_pin->pcm_idx = pin_idx;
1742                 }
1743                 per_pin->pin_nid = pin_nid;
1744                 per_pin->pin_nid_idx = spec->num_nids;
1745                 per_pin->dev_id = i;
1746                 per_pin->non_pcm = false;
1747                 snd_hda_set_dev_select(codec, pin_nid, i);
1748                 if (is_haswell_plus(codec))
1749                         intel_haswell_fixup_connect_list(codec, pin_nid);
1750                 err = hdmi_read_pin_conn(codec, pin_idx);
1751                 if (err < 0)
1752                         return err;
1753                 spec->num_pins++;
1754         }
1755         spec->num_nids++;
1756
1757         return 0;
1758 }
1759
1760 static int hdmi_add_cvt(struct hda_codec *codec, hda_nid_t cvt_nid)
1761 {
1762         struct hdmi_spec *spec = codec->spec;
1763         struct hdmi_spec_per_cvt *per_cvt;
1764         unsigned int chans;
1765         int err;
1766
1767         chans = get_wcaps(codec, cvt_nid);
1768         chans = get_wcaps_channels(chans);
1769
1770         per_cvt = snd_array_new(&spec->cvts);
1771         if (!per_cvt)
1772                 return -ENOMEM;
1773
1774         per_cvt->cvt_nid = cvt_nid;
1775         per_cvt->channels_min = 2;
1776         if (chans <= 16) {
1777                 per_cvt->channels_max = chans;
1778                 if (chans > spec->chmap.channels_max)
1779                         spec->chmap.channels_max = chans;
1780         }
1781
1782         err = snd_hda_query_supported_pcm(codec, cvt_nid,
1783                                           &per_cvt->rates,
1784                                           &per_cvt->formats,
1785                                           &per_cvt->maxbps);
1786         if (err < 0)
1787                 return err;
1788
1789         if (spec->num_cvts < ARRAY_SIZE(spec->cvt_nids))
1790                 spec->cvt_nids[spec->num_cvts] = cvt_nid;
1791         spec->num_cvts++;
1792
1793         return 0;
1794 }
1795
1796 static int hdmi_parse_codec(struct hda_codec *codec)
1797 {
1798         hda_nid_t nid;
1799         int i, nodes;
1800
1801         nodes = snd_hda_get_sub_nodes(codec, codec->core.afg, &nid);
1802         if (!nid || nodes < 0) {
1803                 codec_warn(codec, "HDMI: failed to get afg sub nodes\n");
1804                 return -EINVAL;
1805         }
1806
1807         for (i = 0; i < nodes; i++, nid++) {
1808                 unsigned int caps;
1809                 unsigned int type;
1810
1811                 caps = get_wcaps(codec, nid);
1812                 type = get_wcaps_type(caps);
1813
1814                 if (!(caps & AC_WCAP_DIGITAL))
1815                         continue;
1816
1817                 switch (type) {
1818                 case AC_WID_AUD_OUT:
1819                         hdmi_add_cvt(codec, nid);
1820                         break;
1821                 case AC_WID_PIN:
1822                         hdmi_add_pin(codec, nid);
1823                         break;
1824                 }
1825         }
1826
1827         return 0;
1828 }
1829
1830 /*
1831  */
1832 static bool check_non_pcm_per_cvt(struct hda_codec *codec, hda_nid_t cvt_nid)
1833 {
1834         struct hda_spdif_out *spdif;
1835         bool non_pcm;
1836
1837         mutex_lock(&codec->spdif_mutex);
1838         spdif = snd_hda_spdif_out_of_nid(codec, cvt_nid);
1839         /* Add sanity check to pass klockwork check.
1840          * This should never happen.
1841          */
1842         if (WARN_ON(spdif == NULL))
1843                 return true;
1844         non_pcm = !!(spdif->status & IEC958_AES0_NONAUDIO);
1845         mutex_unlock(&codec->spdif_mutex);
1846         return non_pcm;
1847 }
1848
1849 /*
1850  * HDMI callbacks
1851  */
1852
1853 static int generic_hdmi_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
1854                                            struct hda_codec *codec,
1855                                            unsigned int stream_tag,
1856                                            unsigned int format,
1857                                            struct snd_pcm_substream *substream)
1858 {
1859         hda_nid_t cvt_nid = hinfo->nid;
1860         struct hdmi_spec *spec = codec->spec;
1861         int pin_idx;
1862         struct hdmi_spec_per_pin *per_pin;
1863         hda_nid_t pin_nid;
1864         struct snd_pcm_runtime *runtime = substream->runtime;
1865         bool non_pcm;
1866         int pinctl, stripe;
1867         int err = 0;
1868
1869         mutex_lock(&spec->pcm_lock);
1870         pin_idx = hinfo_to_pin_index(codec, hinfo);
1871         if (spec->dyn_pcm_assign && pin_idx < 0) {
1872                 /* when dyn_pcm_assign and pcm is not bound to a pin
1873                  * skip pin setup and return 0 to make audio playback
1874                  * be ongoing
1875                  */
1876                 pin_cvt_fixup(codec, NULL, cvt_nid);
1877                 snd_hda_codec_setup_stream(codec, cvt_nid,
1878                                         stream_tag, 0, format);
1879                 goto unlock;
1880         }
1881
1882         if (snd_BUG_ON(pin_idx < 0)) {
1883                 err = -EINVAL;
1884                 goto unlock;
1885         }
1886         per_pin = get_pin(spec, pin_idx);
1887         pin_nid = per_pin->pin_nid;
1888
1889         /* Verify pin:cvt selections to avoid silent audio after S3.
1890          * After S3, the audio driver restores pin:cvt selections
1891          * but this can happen before gfx is ready and such selection
1892          * is overlooked by HW. Thus multiple pins can share a same
1893          * default convertor and mute control will affect each other,
1894          * which can cause a resumed audio playback become silent
1895          * after S3.
1896          */
1897         pin_cvt_fixup(codec, per_pin, 0);
1898
1899         /* Call sync_audio_rate to set the N/CTS/M manually if necessary */
1900         /* Todo: add DP1.2 MST audio support later */
1901         if (codec_has_acomp(codec))
1902                 snd_hdac_sync_audio_rate(&codec->core, pin_nid, per_pin->dev_id,
1903                                          runtime->rate);
1904
1905         non_pcm = check_non_pcm_per_cvt(codec, cvt_nid);
1906         mutex_lock(&per_pin->lock);
1907         per_pin->channels = substream->runtime->channels;
1908         per_pin->setup = true;
1909
1910         if (get_wcaps(codec, cvt_nid) & AC_WCAP_STRIPE) {
1911                 stripe = snd_hdac_get_stream_stripe_ctl(&codec->bus->core,
1912                                                         substream);
1913                 snd_hda_codec_write(codec, cvt_nid, 0,
1914                                     AC_VERB_SET_STRIPE_CONTROL,
1915                                     stripe);
1916         }
1917
1918         hdmi_setup_audio_infoframe(codec, per_pin, non_pcm);
1919         mutex_unlock(&per_pin->lock);
1920         if (spec->dyn_pin_out) {
1921                 pinctl = snd_hda_codec_read(codec, pin_nid, 0,
1922                                             AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
1923                 snd_hda_codec_write(codec, pin_nid, 0,
1924                                     AC_VERB_SET_PIN_WIDGET_CONTROL,
1925                                     pinctl | PIN_OUT);
1926         }
1927
1928         /* snd_hda_set_dev_select() has been called before */
1929         err = spec->ops.setup_stream(codec, cvt_nid, pin_nid,
1930                                  stream_tag, format);
1931  unlock:
1932         mutex_unlock(&spec->pcm_lock);
1933         return err;
1934 }
1935
1936 static int generic_hdmi_playback_pcm_cleanup(struct hda_pcm_stream *hinfo,
1937                                              struct hda_codec *codec,
1938                                              struct snd_pcm_substream *substream)
1939 {
1940         snd_hda_codec_cleanup_stream(codec, hinfo->nid);
1941         return 0;
1942 }
1943
1944 static int hdmi_pcm_close(struct hda_pcm_stream *hinfo,
1945                           struct hda_codec *codec,
1946                           struct snd_pcm_substream *substream)
1947 {
1948         struct hdmi_spec *spec = codec->spec;
1949         int cvt_idx, pin_idx, pcm_idx;
1950         struct hdmi_spec_per_cvt *per_cvt;
1951         struct hdmi_spec_per_pin *per_pin;
1952         int pinctl;
1953         int err = 0;
1954
1955         if (hinfo->nid) {
1956                 pcm_idx = hinfo_to_pcm_index(codec, hinfo);
1957                 if (snd_BUG_ON(pcm_idx < 0))
1958                         return -EINVAL;
1959                 cvt_idx = cvt_nid_to_cvt_index(codec, hinfo->nid);
1960                 if (snd_BUG_ON(cvt_idx < 0))
1961                         return -EINVAL;
1962                 per_cvt = get_cvt(spec, cvt_idx);
1963
1964                 snd_BUG_ON(!per_cvt->assigned);
1965                 per_cvt->assigned = 0;
1966                 hinfo->nid = 0;
1967
1968                 mutex_lock(&spec->pcm_lock);
1969                 snd_hda_spdif_ctls_unassign(codec, pcm_idx);
1970                 clear_bit(pcm_idx, &spec->pcm_in_use);
1971                 pin_idx = hinfo_to_pin_index(codec, hinfo);
1972                 if (spec->dyn_pcm_assign && pin_idx < 0)
1973                         goto unlock;
1974
1975                 if (snd_BUG_ON(pin_idx < 0)) {
1976                         err = -EINVAL;
1977                         goto unlock;
1978                 }
1979                 per_pin = get_pin(spec, pin_idx);
1980
1981                 if (spec->dyn_pin_out) {
1982                         pinctl = snd_hda_codec_read(codec, per_pin->pin_nid, 0,
1983                                         AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
1984                         snd_hda_codec_write(codec, per_pin->pin_nid, 0,
1985                                             AC_VERB_SET_PIN_WIDGET_CONTROL,
1986                                             pinctl & ~PIN_OUT);
1987                 }
1988
1989                 mutex_lock(&per_pin->lock);
1990                 per_pin->chmap_set = false;
1991                 memset(per_pin->chmap, 0, sizeof(per_pin->chmap));
1992
1993                 per_pin->setup = false;
1994                 per_pin->channels = 0;
1995                 mutex_unlock(&per_pin->lock);
1996         unlock:
1997                 mutex_unlock(&spec->pcm_lock);
1998         }
1999
2000         return err;
2001 }
2002
2003 static const struct hda_pcm_ops generic_ops = {
2004         .open = hdmi_pcm_open,
2005         .close = hdmi_pcm_close,
2006         .prepare = generic_hdmi_playback_pcm_prepare,
2007         .cleanup = generic_hdmi_playback_pcm_cleanup,
2008 };
2009
2010 static int hdmi_get_spk_alloc(struct hdac_device *hdac, int pcm_idx)
2011 {
2012         struct hda_codec *codec = container_of(hdac, struct hda_codec, core);
2013         struct hdmi_spec *spec = codec->spec;
2014         struct hdmi_spec_per_pin *per_pin = pcm_idx_to_pin(spec, pcm_idx);
2015
2016         if (!per_pin)
2017                 return 0;
2018
2019         return per_pin->sink_eld.info.spk_alloc;
2020 }
2021
2022 static void hdmi_get_chmap(struct hdac_device *hdac, int pcm_idx,
2023                                         unsigned char *chmap)
2024 {
2025         struct hda_codec *codec = container_of(hdac, struct hda_codec, core);
2026         struct hdmi_spec *spec = codec->spec;
2027         struct hdmi_spec_per_pin *per_pin = pcm_idx_to_pin(spec, pcm_idx);
2028
2029         /* chmap is already set to 0 in caller */
2030         if (!per_pin)
2031                 return;
2032
2033         memcpy(chmap, per_pin->chmap, ARRAY_SIZE(per_pin->chmap));
2034 }
2035
2036 static void hdmi_set_chmap(struct hdac_device *hdac, int pcm_idx,
2037                                 unsigned char *chmap, int prepared)
2038 {
2039         struct hda_codec *codec = container_of(hdac, struct hda_codec, core);
2040         struct hdmi_spec *spec = codec->spec;
2041         struct hdmi_spec_per_pin *per_pin = pcm_idx_to_pin(spec, pcm_idx);
2042
2043         if (!per_pin)
2044                 return;
2045         mutex_lock(&per_pin->lock);
2046         per_pin->chmap_set = true;
2047         memcpy(per_pin->chmap, chmap, ARRAY_SIZE(per_pin->chmap));
2048         if (prepared)
2049                 hdmi_setup_audio_infoframe(codec, per_pin, per_pin->non_pcm);
2050         mutex_unlock(&per_pin->lock);
2051 }
2052
2053 static bool is_hdmi_pcm_attached(struct hdac_device *hdac, int pcm_idx)
2054 {
2055         struct hda_codec *codec = container_of(hdac, struct hda_codec, core);
2056         struct hdmi_spec *spec = codec->spec;
2057         struct hdmi_spec_per_pin *per_pin = pcm_idx_to_pin(spec, pcm_idx);
2058
2059         return per_pin ? true:false;
2060 }
2061
2062 static int generic_hdmi_build_pcms(struct hda_codec *codec)
2063 {
2064         struct hdmi_spec *spec = codec->spec;
2065         int idx;
2066
2067         /*
2068          * for non-mst mode, pcm number is the same as before
2069          * for DP MST mode, pcm number is (nid number + dev_num - 1)
2070          *  dev_num is the device entry number in a pin
2071          *
2072          */
2073         for (idx = 0; idx < spec->num_nids + spec->dev_num - 1; idx++) {
2074                 struct hda_pcm *info;
2075                 struct hda_pcm_stream *pstr;
2076
2077                 info = snd_hda_codec_pcm_new(codec, "HDMI %d", idx);
2078                 if (!info)
2079                         return -ENOMEM;
2080
2081                 spec->pcm_rec[idx].pcm = info;
2082                 spec->pcm_used++;
2083                 info->pcm_type = HDA_PCM_TYPE_HDMI;
2084                 info->own_chmap = true;
2085
2086                 pstr = &info->stream[SNDRV_PCM_STREAM_PLAYBACK];
2087                 pstr->substreams = 1;
2088                 pstr->ops = generic_ops;
2089                 /* pcm number is less than 16 */
2090                 if (spec->pcm_used >= 16)
2091                         break;
2092                 /* other pstr fields are set in open */
2093         }
2094
2095         return 0;
2096 }
2097
2098 static void free_hdmi_jack_priv(struct snd_jack *jack)
2099 {
2100         struct hdmi_pcm *pcm = jack->private_data;
2101
2102         pcm->jack = NULL;
2103 }
2104
2105 static int add_hdmi_jack_kctl(struct hda_codec *codec,
2106                                struct hdmi_spec *spec,
2107                                int pcm_idx,
2108                                const char *name)
2109 {
2110         struct snd_jack *jack;
2111         int err;
2112
2113         err = snd_jack_new(codec->card, name, SND_JACK_AVOUT, &jack,
2114                            true, false);
2115         if (err < 0)
2116                 return err;
2117
2118         spec->pcm_rec[pcm_idx].jack = jack;
2119         jack->private_data = &spec->pcm_rec[pcm_idx];
2120         jack->private_free = free_hdmi_jack_priv;
2121         return 0;
2122 }
2123
2124 static int generic_hdmi_build_jack(struct hda_codec *codec, int pcm_idx)
2125 {
2126         char hdmi_str[32] = "HDMI/DP";
2127         struct hdmi_spec *spec = codec->spec;
2128         struct hdmi_spec_per_pin *per_pin;
2129         struct hda_jack_tbl *jack;
2130         int pcmdev = get_pcm_rec(spec, pcm_idx)->device;
2131         bool phantom_jack;
2132         int ret;
2133
2134         if (pcmdev > 0)
2135                 sprintf(hdmi_str + strlen(hdmi_str), ",pcm=%d", pcmdev);
2136
2137         if (spec->dyn_pcm_assign)
2138                 return add_hdmi_jack_kctl(codec, spec, pcm_idx, hdmi_str);
2139
2140         /* for !dyn_pcm_assign, we still use hda_jack for compatibility */
2141         /* if !dyn_pcm_assign, it must be non-MST mode.
2142          * This means pcms and pins are statically mapped.
2143          * And pcm_idx is pin_idx.
2144          */
2145         per_pin = get_pin(spec, pcm_idx);
2146         phantom_jack = !is_jack_detectable(codec, per_pin->pin_nid);
2147         if (phantom_jack)
2148                 strncat(hdmi_str, " Phantom",
2149                         sizeof(hdmi_str) - strlen(hdmi_str) - 1);
2150         ret = snd_hda_jack_add_kctl(codec, per_pin->pin_nid, hdmi_str,
2151                                     phantom_jack, 0, NULL);
2152         if (ret < 0)
2153                 return ret;
2154         jack = snd_hda_jack_tbl_get(codec, per_pin->pin_nid);
2155         if (jack == NULL)
2156                 return 0;
2157         /* assign jack->jack to pcm_rec[].jack to
2158          * align with dyn_pcm_assign mode
2159          */
2160         spec->pcm_rec[pcm_idx].jack = jack->jack;
2161         return 0;
2162 }
2163
2164 static int generic_hdmi_build_controls(struct hda_codec *codec)
2165 {
2166         struct hdmi_spec *spec = codec->spec;
2167         int dev, err;
2168         int pin_idx, pcm_idx;
2169
2170         for (pcm_idx = 0; pcm_idx < spec->pcm_used; pcm_idx++) {
2171                 if (!get_pcm_rec(spec, pcm_idx)->pcm) {
2172                         /* no PCM: mark this for skipping permanently */
2173                         set_bit(pcm_idx, &spec->pcm_bitmap);
2174                         continue;
2175                 }
2176
2177                 err = generic_hdmi_build_jack(codec, pcm_idx);
2178                 if (err < 0)
2179                         return err;
2180
2181                 /* create the spdif for each pcm
2182                  * pin will be bound when monitor is connected
2183                  */
2184                 if (spec->dyn_pcm_assign)
2185                         err = snd_hda_create_dig_out_ctls(codec,
2186                                           0, spec->cvt_nids[0],
2187                                           HDA_PCM_TYPE_HDMI);
2188                 else {
2189                         struct hdmi_spec_per_pin *per_pin =
2190                                 get_pin(spec, pcm_idx);
2191                         err = snd_hda_create_dig_out_ctls(codec,
2192                                                   per_pin->pin_nid,
2193                                                   per_pin->mux_nids[0],
2194                                                   HDA_PCM_TYPE_HDMI);
2195                 }
2196                 if (err < 0)
2197                         return err;
2198                 snd_hda_spdif_ctls_unassign(codec, pcm_idx);
2199
2200                 dev = get_pcm_rec(spec, pcm_idx)->device;
2201                 if (dev != SNDRV_PCM_INVALID_DEVICE) {
2202                         /* add control for ELD Bytes */
2203                         err = hdmi_create_eld_ctl(codec, pcm_idx, dev);
2204                         if (err < 0)
2205                                 return err;
2206                 }
2207         }
2208
2209         for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
2210                 struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
2211
2212                 hdmi_present_sense(per_pin, 0);
2213         }
2214
2215         /* add channel maps */
2216         for (pcm_idx = 0; pcm_idx < spec->pcm_used; pcm_idx++) {
2217                 struct hda_pcm *pcm;
2218
2219                 pcm = get_pcm_rec(spec, pcm_idx);
2220                 if (!pcm || !pcm->pcm)
2221                         break;
2222                 err = snd_hdac_add_chmap_ctls(pcm->pcm, pcm_idx, &spec->chmap);
2223                 if (err < 0)
2224                         return err;
2225         }
2226
2227         return 0;
2228 }
2229
2230 static int generic_hdmi_init_per_pins(struct hda_codec *codec)
2231 {
2232         struct hdmi_spec *spec = codec->spec;
2233         int pin_idx;
2234
2235         for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
2236                 struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
2237
2238                 per_pin->codec = codec;
2239                 mutex_init(&per_pin->lock);
2240                 INIT_DELAYED_WORK(&per_pin->work, hdmi_repoll_eld);
2241                 eld_proc_new(per_pin, pin_idx);
2242         }
2243         return 0;
2244 }
2245
2246 static int generic_hdmi_init(struct hda_codec *codec)
2247 {
2248         struct hdmi_spec *spec = codec->spec;
2249         int pin_idx;
2250
2251         for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
2252                 struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
2253                 hda_nid_t pin_nid = per_pin->pin_nid;
2254                 int dev_id = per_pin->dev_id;
2255
2256                 snd_hda_set_dev_select(codec, pin_nid, dev_id);
2257                 hdmi_init_pin(codec, pin_nid);
2258                 if (!codec_has_acomp(codec))
2259                         snd_hda_jack_detect_enable_callback(codec, pin_nid,
2260                                 codec->jackpoll_interval > 0 ?
2261                                 jack_callback : NULL);
2262         }
2263         return 0;
2264 }
2265
2266 static void hdmi_array_init(struct hdmi_spec *spec, int nums)
2267 {
2268         snd_array_init(&spec->pins, sizeof(struct hdmi_spec_per_pin), nums);
2269         snd_array_init(&spec->cvts, sizeof(struct hdmi_spec_per_cvt), nums);
2270 }
2271
2272 static void hdmi_array_free(struct hdmi_spec *spec)
2273 {
2274         snd_array_free(&spec->pins);
2275         snd_array_free(&spec->cvts);
2276 }
2277
2278 static void generic_spec_free(struct hda_codec *codec)
2279 {
2280         struct hdmi_spec *spec = codec->spec;
2281
2282         if (spec) {
2283                 hdmi_array_free(spec);
2284                 kfree(spec);
2285                 codec->spec = NULL;
2286         }
2287         codec->dp_mst = false;
2288 }
2289
2290 static void generic_hdmi_free(struct hda_codec *codec)
2291 {
2292         struct hdmi_spec *spec = codec->spec;
2293         int pin_idx, pcm_idx;
2294
2295         if (codec_has_acomp(codec))
2296                 snd_hdac_acomp_register_notifier(&codec->bus->core, NULL);
2297
2298         for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
2299                 struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
2300                 cancel_delayed_work_sync(&per_pin->work);
2301                 eld_proc_free(per_pin);
2302         }
2303
2304         for (pcm_idx = 0; pcm_idx < spec->pcm_used; pcm_idx++) {
2305                 if (spec->pcm_rec[pcm_idx].jack == NULL)
2306                         continue;
2307                 if (spec->dyn_pcm_assign)
2308                         snd_device_free(codec->card,
2309                                         spec->pcm_rec[pcm_idx].jack);
2310                 else
2311                         spec->pcm_rec[pcm_idx].jack = NULL;
2312         }
2313
2314         generic_spec_free(codec);
2315 }
2316
2317 #ifdef CONFIG_PM
2318 static int generic_hdmi_resume(struct hda_codec *codec)
2319 {
2320         struct hdmi_spec *spec = codec->spec;
2321         int pin_idx;
2322
2323         codec->patch_ops.init(codec);
2324         regcache_sync(codec->core.regmap);
2325
2326         for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
2327                 struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
2328                 hdmi_present_sense(per_pin, 1);
2329         }
2330         return 0;
2331 }
2332 #endif
2333
2334 static const struct hda_codec_ops generic_hdmi_patch_ops = {
2335         .init                   = generic_hdmi_init,
2336         .free                   = generic_hdmi_free,
2337         .build_pcms             = generic_hdmi_build_pcms,
2338         .build_controls         = generic_hdmi_build_controls,
2339         .unsol_event            = hdmi_unsol_event,
2340 #ifdef CONFIG_PM
2341         .resume                 = generic_hdmi_resume,
2342 #endif
2343 };
2344
2345 static const struct hdmi_ops generic_standard_hdmi_ops = {
2346         .pin_get_eld                            = snd_hdmi_get_eld,
2347         .pin_setup_infoframe                    = hdmi_pin_setup_infoframe,
2348         .pin_hbr_setup                          = hdmi_pin_hbr_setup,
2349         .setup_stream                           = hdmi_setup_stream,
2350 };
2351
2352 /* allocate codec->spec and assign/initialize generic parser ops */
2353 static int alloc_generic_hdmi(struct hda_codec *codec)
2354 {
2355         struct hdmi_spec *spec;
2356
2357         spec = kzalloc(sizeof(*spec), GFP_KERNEL);
2358         if (!spec)
2359                 return -ENOMEM;
2360
2361         spec->ops = generic_standard_hdmi_ops;
2362         spec->dev_num = 1;      /* initialize to 1 */
2363         mutex_init(&spec->pcm_lock);
2364         snd_hdac_register_chmap_ops(&codec->core, &spec->chmap);
2365
2366         spec->chmap.ops.get_chmap = hdmi_get_chmap;
2367         spec->chmap.ops.set_chmap = hdmi_set_chmap;
2368         spec->chmap.ops.is_pcm_attached = is_hdmi_pcm_attached;
2369         spec->chmap.ops.get_spk_alloc = hdmi_get_spk_alloc,
2370
2371         codec->spec = spec;
2372         hdmi_array_init(spec, 4);
2373
2374         codec->patch_ops = generic_hdmi_patch_ops;
2375
2376         return 0;
2377 }
2378
2379 /* generic HDMI parser */
2380 static int patch_generic_hdmi(struct hda_codec *codec)
2381 {
2382         int err;
2383
2384         err = alloc_generic_hdmi(codec);
2385         if (err < 0)
2386                 return err;
2387
2388         err = hdmi_parse_codec(codec);
2389         if (err < 0) {
2390                 generic_spec_free(codec);
2391                 return err;
2392         }
2393
2394         generic_hdmi_init_per_pins(codec);
2395         return 0;
2396 }
2397
2398 /*
2399  * Intel codec parsers and helpers
2400  */
2401
2402 static void intel_haswell_fixup_connect_list(struct hda_codec *codec,
2403                                              hda_nid_t nid)
2404 {
2405         struct hdmi_spec *spec = codec->spec;
2406         hda_nid_t conns[4];
2407         int nconns;
2408
2409         nconns = snd_hda_get_connections(codec, nid, conns, ARRAY_SIZE(conns));
2410         if (nconns == spec->num_cvts &&
2411             !memcmp(conns, spec->cvt_nids, spec->num_cvts * sizeof(hda_nid_t)))
2412                 return;
2413
2414         /* override pins connection list */
2415         codec_dbg(codec, "hdmi: haswell: override pin connection 0x%x\n", nid);
2416         snd_hda_override_conn_list(codec, nid, spec->num_cvts, spec->cvt_nids);
2417 }
2418
2419 #define INTEL_GET_VENDOR_VERB   0xf81
2420 #define INTEL_SET_VENDOR_VERB   0x781
2421 #define INTEL_EN_DP12           0x02    /* enable DP 1.2 features */
2422 #define INTEL_EN_ALL_PIN_CVTS   0x01    /* enable 2nd & 3rd pins and convertors */
2423
2424 static void intel_haswell_enable_all_pins(struct hda_codec *codec,
2425                                           bool update_tree)
2426 {
2427         unsigned int vendor_param;
2428         struct hdmi_spec *spec = codec->spec;
2429
2430         vendor_param = snd_hda_codec_read(codec, spec->vendor_nid, 0,
2431                                 INTEL_GET_VENDOR_VERB, 0);
2432         if (vendor_param == -1 || vendor_param & INTEL_EN_ALL_PIN_CVTS)
2433                 return;
2434
2435         vendor_param |= INTEL_EN_ALL_PIN_CVTS;
2436         vendor_param = snd_hda_codec_read(codec, spec->vendor_nid, 0,
2437                                 INTEL_SET_VENDOR_VERB, vendor_param);
2438         if (vendor_param == -1)
2439                 return;
2440
2441         if (update_tree)
2442                 snd_hda_codec_update_widgets(codec);
2443 }
2444
2445 static void intel_haswell_fixup_enable_dp12(struct hda_codec *codec)
2446 {
2447         unsigned int vendor_param;
2448         struct hdmi_spec *spec = codec->spec;
2449
2450         vendor_param = snd_hda_codec_read(codec, spec->vendor_nid, 0,
2451                                 INTEL_GET_VENDOR_VERB, 0);
2452         if (vendor_param == -1 || vendor_param & INTEL_EN_DP12)
2453                 return;
2454
2455         /* enable DP1.2 mode */
2456         vendor_param |= INTEL_EN_DP12;
2457         snd_hdac_regmap_add_vendor_verb(&codec->core, INTEL_SET_VENDOR_VERB);
2458         snd_hda_codec_write_cache(codec, spec->vendor_nid, 0,
2459                                 INTEL_SET_VENDOR_VERB, vendor_param);
2460 }
2461
2462 /* Haswell needs to re-issue the vendor-specific verbs before turning to D0.
2463  * Otherwise you may get severe h/w communication errors.
2464  */
2465 static void haswell_set_power_state(struct hda_codec *codec, hda_nid_t fg,
2466                                 unsigned int power_state)
2467 {
2468         if (power_state == AC_PWRST_D0) {
2469                 intel_haswell_enable_all_pins(codec, false);
2470                 intel_haswell_fixup_enable_dp12(codec);
2471         }
2472
2473         snd_hda_codec_read(codec, fg, 0, AC_VERB_SET_POWER_STATE, power_state);
2474         snd_hda_codec_set_power_to_all(codec, fg, power_state);
2475 }
2476
2477 /* There is a fixed mapping between audio pin node and display port.
2478  * on SNB, IVY, HSW, BSW, SKL, BXT, KBL:
2479  * Pin Widget 5 - PORT B (port = 1 in i915 driver)
2480  * Pin Widget 6 - PORT C (port = 2 in i915 driver)
2481  * Pin Widget 7 - PORT D (port = 3 in i915 driver)
2482  *
2483  * on VLV, ILK:
2484  * Pin Widget 4 - PORT B (port = 1 in i915 driver)
2485  * Pin Widget 5 - PORT C (port = 2 in i915 driver)
2486  * Pin Widget 6 - PORT D (port = 3 in i915 driver)
2487  */
2488 static int intel_base_nid(struct hda_codec *codec)
2489 {
2490         switch (codec->core.vendor_id) {
2491         case 0x80860054: /* ILK */
2492         case 0x80862804: /* ILK */
2493         case 0x80862882: /* VLV */
2494                 return 4;
2495         default:
2496                 return 5;
2497         }
2498 }
2499
2500 static int intel_pin2port(void *audio_ptr, int pin_nid)
2501 {
2502         struct hda_codec *codec = audio_ptr;
2503         struct hdmi_spec *spec = codec->spec;
2504         int base_nid, i;
2505
2506         if (!spec->port_num) {
2507                 base_nid = intel_base_nid(codec);
2508                 if (WARN_ON(pin_nid < base_nid || pin_nid >= base_nid + 3))
2509                         return -1;
2510                 return pin_nid - base_nid + 1; /* intel port is 1-based */
2511         }
2512
2513         /*
2514          * looking for the pin number in the mapping table and return
2515          * the index which indicate the port number
2516          */
2517         for (i = 0; i < spec->port_num; i++) {
2518                 if (pin_nid == spec->port_map[i])
2519                         return i + 1;
2520         }
2521
2522         /* return -1 if pin number exceeds our expectation */
2523         codec_info(codec, "Can't find the HDMI/DP port for pin %d\n", pin_nid);
2524         return -1;
2525 }
2526
2527 static int intel_port2pin(struct hda_codec *codec, int port)
2528 {
2529         struct hdmi_spec *spec = codec->spec;
2530
2531         if (!spec->port_num) {
2532                 /* we assume only from port-B to port-D */
2533                 if (port < 1 || port > 3)
2534                         return 0;
2535                 /* intel port is 1-based */
2536                 return port + intel_base_nid(codec) - 1;
2537         }
2538
2539         if (port < 1 || port > spec->port_num)
2540                 return 0;
2541         return spec->port_map[port - 1];
2542 }
2543
2544 static void intel_pin_eld_notify(void *audio_ptr, int port, int pipe)
2545 {
2546         struct hda_codec *codec = audio_ptr;
2547         int pin_nid;
2548         int dev_id = pipe;
2549
2550         pin_nid = intel_port2pin(codec, port);
2551         if (!pin_nid)
2552                 return;
2553         /* skip notification during system suspend (but not in runtime PM);
2554          * the state will be updated at resume
2555          */
2556         if (snd_power_get_state(codec->card) != SNDRV_CTL_POWER_D0)
2557                 return;
2558         /* ditto during suspend/resume process itself */
2559         if (snd_hdac_is_in_pm(&codec->core))
2560                 return;
2561
2562         snd_hdac_i915_set_bclk(&codec->bus->core);
2563         check_presence_and_report(codec, pin_nid, dev_id);
2564 }
2565
2566 /* register i915 component pin_eld_notify callback */
2567 static void register_i915_notifier(struct hda_codec *codec)
2568 {
2569         struct hdmi_spec *spec = codec->spec;
2570
2571         spec->use_acomp_notifier = true;
2572         spec->drm_audio_ops.audio_ptr = codec;
2573         /* intel_audio_codec_enable() or intel_audio_codec_disable()
2574          * will call pin_eld_notify with using audio_ptr pointer
2575          * We need make sure audio_ptr is really setup
2576          */
2577         wmb();
2578         spec->drm_audio_ops.pin2port = intel_pin2port;
2579         spec->drm_audio_ops.pin_eld_notify = intel_pin_eld_notify;
2580         snd_hdac_acomp_register_notifier(&codec->bus->core,
2581                                         &spec->drm_audio_ops);
2582 }
2583
2584 /* setup_stream ops override for HSW+ */
2585 static int i915_hsw_setup_stream(struct hda_codec *codec, hda_nid_t cvt_nid,
2586                                  hda_nid_t pin_nid, u32 stream_tag, int format)
2587 {
2588         haswell_verify_D0(codec, cvt_nid, pin_nid);
2589         return hdmi_setup_stream(codec, cvt_nid, pin_nid, stream_tag, format);
2590 }
2591
2592 /* pin_cvt_fixup ops override for HSW+ and VLV+ */
2593 static void i915_pin_cvt_fixup(struct hda_codec *codec,
2594                                struct hdmi_spec_per_pin *per_pin,
2595                                hda_nid_t cvt_nid)
2596 {
2597         if (per_pin) {
2598                 snd_hda_set_dev_select(codec, per_pin->pin_nid,
2599                                per_pin->dev_id);
2600                 intel_verify_pin_cvt_connect(codec, per_pin);
2601                 intel_not_share_assigned_cvt(codec, per_pin->pin_nid,
2602                                      per_pin->dev_id, per_pin->mux_idx);
2603         } else {
2604                 intel_not_share_assigned_cvt_nid(codec, 0, 0, cvt_nid);
2605         }
2606 }
2607
2608 /* precondition and allocation for Intel codecs */
2609 static int alloc_intel_hdmi(struct hda_codec *codec)
2610 {
2611         /* requires i915 binding */
2612         if (!codec->bus->core.audio_component) {
2613                 codec_info(codec, "No i915 binding for Intel HDMI/DP codec\n");
2614                 /* set probe_id here to prevent generic fallback binding */
2615                 codec->probe_id = HDA_CODEC_ID_SKIP_PROBE;
2616                 return -ENODEV;
2617         }
2618
2619         return alloc_generic_hdmi(codec);
2620 }
2621
2622 /* parse and post-process for Intel codecs */
2623 static int parse_intel_hdmi(struct hda_codec *codec)
2624 {
2625         int err;
2626
2627         err = hdmi_parse_codec(codec);
2628         if (err < 0) {
2629                 generic_spec_free(codec);
2630                 return err;
2631         }
2632
2633         generic_hdmi_init_per_pins(codec);
2634         register_i915_notifier(codec);
2635         return 0;
2636 }
2637
2638 /* Intel Haswell and onwards; audio component with eld notifier */
2639 static int intel_hsw_common_init(struct hda_codec *codec, hda_nid_t vendor_nid,
2640                                  const int *port_map, int port_num)
2641 {
2642         struct hdmi_spec *spec;
2643         int err;
2644
2645         err = alloc_intel_hdmi(codec);
2646         if (err < 0)
2647                 return err;
2648         spec = codec->spec;
2649         codec->dp_mst = true;
2650         spec->dyn_pcm_assign = true;
2651         spec->vendor_nid = vendor_nid;
2652         spec->port_map = port_map;
2653         spec->port_num = port_num;
2654
2655         intel_haswell_enable_all_pins(codec, true);
2656         intel_haswell_fixup_enable_dp12(codec);
2657
2658         codec->display_power_control = 1;
2659
2660         codec->patch_ops.set_power_state = haswell_set_power_state;
2661         codec->depop_delay = 0;
2662         codec->auto_runtime_pm = 1;
2663
2664         spec->ops.setup_stream = i915_hsw_setup_stream;
2665         spec->ops.pin_cvt_fixup = i915_pin_cvt_fixup;
2666
2667         return parse_intel_hdmi(codec);
2668 }
2669
2670 static int patch_i915_hsw_hdmi(struct hda_codec *codec)
2671 {
2672         return intel_hsw_common_init(codec, 0x08, NULL, 0);
2673 }
2674
2675 static int patch_i915_glk_hdmi(struct hda_codec *codec)
2676 {
2677         return intel_hsw_common_init(codec, 0x0b, NULL, 0);
2678 }
2679
2680 static int patch_i915_icl_hdmi(struct hda_codec *codec)
2681 {
2682         /*
2683          * pin to port mapping table where the value indicate the pin number and
2684          * the index indicate the port number with 1 base.
2685          */
2686         static const int map[] = {0x4, 0x6, 0x8, 0xa, 0xb};
2687
2688         return intel_hsw_common_init(codec, 0x02, map, ARRAY_SIZE(map));
2689 }
2690
2691 /* Intel Baytrail and Braswell; with eld notifier */
2692 static int patch_i915_byt_hdmi(struct hda_codec *codec)
2693 {
2694         struct hdmi_spec *spec;
2695         int err;
2696
2697         err = alloc_intel_hdmi(codec);
2698         if (err < 0)
2699                 return err;
2700         spec = codec->spec;
2701
2702         /* For Valleyview/Cherryview, only the display codec is in the display
2703          * power well and can use link_power ops to request/release the power.
2704          */
2705         codec->display_power_control = 1;
2706
2707         codec->depop_delay = 0;
2708         codec->auto_runtime_pm = 1;
2709
2710         spec->ops.pin_cvt_fixup = i915_pin_cvt_fixup;
2711
2712         return parse_intel_hdmi(codec);
2713 }
2714
2715 /* Intel IronLake, SandyBridge and IvyBridge; with eld notifier */
2716 static int patch_i915_cpt_hdmi(struct hda_codec *codec)
2717 {
2718         int err;
2719
2720         err = alloc_intel_hdmi(codec);
2721         if (err < 0)
2722                 return err;
2723         return parse_intel_hdmi(codec);
2724 }
2725
2726 /*
2727  * Shared non-generic implementations
2728  */
2729
2730 static int simple_playback_build_pcms(struct hda_codec *codec)
2731 {
2732         struct hdmi_spec *spec = codec->spec;
2733         struct hda_pcm *info;
2734         unsigned int chans;
2735         struct hda_pcm_stream *pstr;
2736         struct hdmi_spec_per_cvt *per_cvt;
2737
2738         per_cvt = get_cvt(spec, 0);
2739         chans = get_wcaps(codec, per_cvt->cvt_nid);
2740         chans = get_wcaps_channels(chans);
2741
2742         info = snd_hda_codec_pcm_new(codec, "HDMI 0");
2743         if (!info)
2744                 return -ENOMEM;
2745         spec->pcm_rec[0].pcm = info;
2746         info->pcm_type = HDA_PCM_TYPE_HDMI;
2747         pstr = &info->stream[SNDRV_PCM_STREAM_PLAYBACK];
2748         *pstr = spec->pcm_playback;
2749         pstr->nid = per_cvt->cvt_nid;
2750         if (pstr->channels_max <= 2 && chans && chans <= 16)
2751                 pstr->channels_max = chans;
2752
2753         return 0;
2754 }
2755
2756 /* unsolicited event for jack sensing */
2757 static void simple_hdmi_unsol_event(struct hda_codec *codec,
2758                                     unsigned int res)
2759 {
2760         snd_hda_jack_set_dirty_all(codec);
2761         snd_hda_jack_report_sync(codec);
2762 }
2763
2764 /* generic_hdmi_build_jack can be used for simple_hdmi, too,
2765  * as long as spec->pins[] is set correctly
2766  */
2767 #define simple_hdmi_build_jack  generic_hdmi_build_jack
2768
2769 static int simple_playback_build_controls(struct hda_codec *codec)
2770 {
2771         struct hdmi_spec *spec = codec->spec;
2772         struct hdmi_spec_per_cvt *per_cvt;
2773         int err;
2774
2775         per_cvt = get_cvt(spec, 0);
2776         err = snd_hda_create_dig_out_ctls(codec, per_cvt->cvt_nid,
2777                                           per_cvt->cvt_nid,
2778                                           HDA_PCM_TYPE_HDMI);
2779         if (err < 0)
2780                 return err;
2781         return simple_hdmi_build_jack(codec, 0);
2782 }
2783
2784 static int simple_playback_init(struct hda_codec *codec)
2785 {
2786         struct hdmi_spec *spec = codec->spec;
2787         struct hdmi_spec_per_pin *per_pin = get_pin(spec, 0);
2788         hda_nid_t pin = per_pin->pin_nid;
2789
2790         snd_hda_codec_write(codec, pin, 0,
2791                             AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT);
2792         /* some codecs require to unmute the pin */
2793         if (get_wcaps(codec, pin) & AC_WCAP_OUT_AMP)
2794                 snd_hda_codec_write(codec, pin, 0, AC_VERB_SET_AMP_GAIN_MUTE,
2795                                     AMP_OUT_UNMUTE);
2796         snd_hda_jack_detect_enable(codec, pin);
2797         return 0;
2798 }
2799
2800 static void simple_playback_free(struct hda_codec *codec)
2801 {
2802         struct hdmi_spec *spec = codec->spec;
2803
2804         hdmi_array_free(spec);
2805         kfree(spec);
2806 }
2807
2808 /*
2809  * Nvidia specific implementations
2810  */
2811
2812 #define Nv_VERB_SET_Channel_Allocation          0xF79
2813 #define Nv_VERB_SET_Info_Frame_Checksum         0xF7A
2814 #define Nv_VERB_SET_Audio_Protection_On         0xF98
2815 #define Nv_VERB_SET_Audio_Protection_Off        0xF99
2816
2817 #define nvhdmi_master_con_nid_7x        0x04
2818 #define nvhdmi_master_pin_nid_7x        0x05
2819
2820 static const hda_nid_t nvhdmi_con_nids_7x[4] = {
2821         /*front, rear, clfe, rear_surr */
2822         0x6, 0x8, 0xa, 0xc,
2823 };
2824
2825 static const struct hda_verb nvhdmi_basic_init_7x_2ch[] = {
2826         /* set audio protect on */
2827         { 0x1, Nv_VERB_SET_Audio_Protection_On, 0x1},
2828         /* enable digital output on pin widget */
2829         { 0x5, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2830         {} /* terminator */
2831 };
2832
2833 static const struct hda_verb nvhdmi_basic_init_7x_8ch[] = {
2834         /* set audio protect on */
2835         { 0x1, Nv_VERB_SET_Audio_Protection_On, 0x1},
2836         /* enable digital output on pin widget */
2837         { 0x5, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2838         { 0x7, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2839         { 0x9, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2840         { 0xb, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2841         { 0xd, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2842         {} /* terminator */
2843 };
2844
2845 #ifdef LIMITED_RATE_FMT_SUPPORT
2846 /* support only the safe format and rate */
2847 #define SUPPORTED_RATES         SNDRV_PCM_RATE_48000
2848 #define SUPPORTED_MAXBPS        16
2849 #define SUPPORTED_FORMATS       SNDRV_PCM_FMTBIT_S16_LE
2850 #else
2851 /* support all rates and formats */
2852 #define SUPPORTED_RATES \
2853         (SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\
2854         SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 |\
2855          SNDRV_PCM_RATE_192000)
2856 #define SUPPORTED_MAXBPS        24
2857 #define SUPPORTED_FORMATS \
2858         (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE)
2859 #endif
2860
2861 static int nvhdmi_7x_init_2ch(struct hda_codec *codec)
2862 {
2863         snd_hda_sequence_write(codec, nvhdmi_basic_init_7x_2ch);
2864         return 0;
2865 }
2866
2867 static int nvhdmi_7x_init_8ch(struct hda_codec *codec)
2868 {
2869         snd_hda_sequence_write(codec, nvhdmi_basic_init_7x_8ch);
2870         return 0;
2871 }
2872
2873 static const unsigned int channels_2_6_8[] = {
2874         2, 6, 8
2875 };
2876
2877 static const unsigned int channels_2_8[] = {
2878         2, 8
2879 };
2880
2881 static const struct snd_pcm_hw_constraint_list hw_constraints_2_6_8_channels = {
2882         .count = ARRAY_SIZE(channels_2_6_8),
2883         .list = channels_2_6_8,
2884         .mask = 0,
2885 };
2886
2887 static const struct snd_pcm_hw_constraint_list hw_constraints_2_8_channels = {
2888         .count = ARRAY_SIZE(channels_2_8),
2889         .list = channels_2_8,
2890         .mask = 0,
2891 };
2892
2893 static int simple_playback_pcm_open(struct hda_pcm_stream *hinfo,
2894                                     struct hda_codec *codec,
2895                                     struct snd_pcm_substream *substream)
2896 {
2897         struct hdmi_spec *spec = codec->spec;
2898         const struct snd_pcm_hw_constraint_list *hw_constraints_channels = NULL;
2899
2900         switch (codec->preset->vendor_id) {
2901         case 0x10de0002:
2902         case 0x10de0003:
2903         case 0x10de0005:
2904         case 0x10de0006:
2905                 hw_constraints_channels = &hw_constraints_2_8_channels;
2906                 break;
2907         case 0x10de0007:
2908                 hw_constraints_channels = &hw_constraints_2_6_8_channels;
2909                 break;
2910         default:
2911                 break;
2912         }
2913
2914         if (hw_constraints_channels != NULL) {
2915                 snd_pcm_hw_constraint_list(substream->runtime, 0,
2916                                 SNDRV_PCM_HW_PARAM_CHANNELS,
2917                                 hw_constraints_channels);
2918         } else {
2919                 snd_pcm_hw_constraint_step(substream->runtime, 0,
2920                                            SNDRV_PCM_HW_PARAM_CHANNELS, 2);
2921         }
2922
2923         return snd_hda_multi_out_dig_open(codec, &spec->multiout);
2924 }
2925
2926 static int simple_playback_pcm_close(struct hda_pcm_stream *hinfo,
2927                                      struct hda_codec *codec,
2928                                      struct snd_pcm_substream *substream)
2929 {
2930         struct hdmi_spec *spec = codec->spec;
2931         return snd_hda_multi_out_dig_close(codec, &spec->multiout);
2932 }
2933
2934 static int simple_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
2935                                        struct hda_codec *codec,
2936                                        unsigned int stream_tag,
2937                                        unsigned int format,
2938                                        struct snd_pcm_substream *substream)
2939 {
2940         struct hdmi_spec *spec = codec->spec;
2941         return snd_hda_multi_out_dig_prepare(codec, &spec->multiout,
2942                                              stream_tag, format, substream);
2943 }
2944
2945 static const struct hda_pcm_stream simple_pcm_playback = {
2946         .substreams = 1,
2947         .channels_min = 2,
2948         .channels_max = 2,
2949         .ops = {
2950                 .open = simple_playback_pcm_open,
2951                 .close = simple_playback_pcm_close,
2952                 .prepare = simple_playback_pcm_prepare
2953         },
2954 };
2955
2956 static const struct hda_codec_ops simple_hdmi_patch_ops = {
2957         .build_controls = simple_playback_build_controls,
2958         .build_pcms = simple_playback_build_pcms,
2959         .init = simple_playback_init,
2960         .free = simple_playback_free,
2961         .unsol_event = simple_hdmi_unsol_event,
2962 };
2963
2964 static int patch_simple_hdmi(struct hda_codec *codec,
2965                              hda_nid_t cvt_nid, hda_nid_t pin_nid)
2966 {
2967         struct hdmi_spec *spec;
2968         struct hdmi_spec_per_cvt *per_cvt;
2969         struct hdmi_spec_per_pin *per_pin;
2970
2971         spec = kzalloc(sizeof(*spec), GFP_KERNEL);
2972         if (!spec)
2973                 return -ENOMEM;
2974
2975         codec->spec = spec;
2976         hdmi_array_init(spec, 1);
2977
2978         spec->multiout.num_dacs = 0;  /* no analog */
2979         spec->multiout.max_channels = 2;
2980         spec->multiout.dig_out_nid = cvt_nid;
2981         spec->num_cvts = 1;
2982         spec->num_pins = 1;
2983         per_pin = snd_array_new(&spec->pins);
2984         per_cvt = snd_array_new(&spec->cvts);
2985         if (!per_pin || !per_cvt) {
2986                 simple_playback_free(codec);
2987                 return -ENOMEM;
2988         }
2989         per_cvt->cvt_nid = cvt_nid;
2990         per_pin->pin_nid = pin_nid;
2991         spec->pcm_playback = simple_pcm_playback;
2992
2993         codec->patch_ops = simple_hdmi_patch_ops;
2994
2995         return 0;
2996 }
2997
2998 static void nvhdmi_8ch_7x_set_info_frame_parameters(struct hda_codec *codec,
2999                                                     int channels)
3000 {
3001         unsigned int chanmask;
3002         int chan = channels ? (channels - 1) : 1;
3003
3004         switch (channels) {
3005         default:
3006         case 0:
3007         case 2:
3008                 chanmask = 0x00;
3009                 break;
3010         case 4:
3011                 chanmask = 0x08;
3012                 break;
3013         case 6:
3014                 chanmask = 0x0b;
3015                 break;
3016         case 8:
3017                 chanmask = 0x13;
3018                 break;
3019         }
3020
3021         /* Set the audio infoframe channel allocation and checksum fields.  The
3022          * channel count is computed implicitly by the hardware. */
3023         snd_hda_codec_write(codec, 0x1, 0,
3024                         Nv_VERB_SET_Channel_Allocation, chanmask);
3025
3026         snd_hda_codec_write(codec, 0x1, 0,
3027                         Nv_VERB_SET_Info_Frame_Checksum,
3028                         (0x71 - chan - chanmask));
3029 }
3030
3031 static int nvhdmi_8ch_7x_pcm_close(struct hda_pcm_stream *hinfo,
3032                                    struct hda_codec *codec,
3033                                    struct snd_pcm_substream *substream)
3034 {
3035         struct hdmi_spec *spec = codec->spec;
3036         int i;
3037
3038         snd_hda_codec_write(codec, nvhdmi_master_con_nid_7x,
3039                         0, AC_VERB_SET_CHANNEL_STREAMID, 0);
3040         for (i = 0; i < 4; i++) {
3041                 /* set the stream id */
3042                 snd_hda_codec_write(codec, nvhdmi_con_nids_7x[i], 0,
3043                                 AC_VERB_SET_CHANNEL_STREAMID, 0);
3044                 /* set the stream format */
3045                 snd_hda_codec_write(codec, nvhdmi_con_nids_7x[i], 0,
3046                                 AC_VERB_SET_STREAM_FORMAT, 0);
3047         }
3048
3049         /* The audio hardware sends a channel count of 0x7 (8ch) when all the
3050          * streams are disabled. */
3051         nvhdmi_8ch_7x_set_info_frame_parameters(codec, 8);
3052
3053         return snd_hda_multi_out_dig_close(codec, &spec->multiout);
3054 }
3055
3056 static int nvhdmi_8ch_7x_pcm_prepare(struct hda_pcm_stream *hinfo,
3057                                      struct hda_codec *codec,
3058                                      unsigned int stream_tag,
3059                                      unsigned int format,
3060                                      struct snd_pcm_substream *substream)
3061 {
3062         int chs;
3063         unsigned int dataDCC2, channel_id;
3064         int i;
3065         struct hdmi_spec *spec = codec->spec;
3066         struct hda_spdif_out *spdif;
3067         struct hdmi_spec_per_cvt *per_cvt;
3068
3069         mutex_lock(&codec->spdif_mutex);
3070         per_cvt = get_cvt(spec, 0);
3071         spdif = snd_hda_spdif_out_of_nid(codec, per_cvt->cvt_nid);
3072
3073         chs = substream->runtime->channels;
3074
3075         dataDCC2 = 0x2;
3076
3077         /* turn off SPDIF once; otherwise the IEC958 bits won't be updated */
3078         if (codec->spdif_status_reset && (spdif->ctls & AC_DIG1_ENABLE))
3079                 snd_hda_codec_write(codec,
3080                                 nvhdmi_master_con_nid_7x,
3081                                 0,
3082                                 AC_VERB_SET_DIGI_CONVERT_1,
3083                                 spdif->ctls & ~AC_DIG1_ENABLE & 0xff);
3084
3085         /* set the stream id */
3086         snd_hda_codec_write(codec, nvhdmi_master_con_nid_7x, 0,
3087                         AC_VERB_SET_CHANNEL_STREAMID, (stream_tag << 4) | 0x0);
3088
3089         /* set the stream format */
3090         snd_hda_codec_write(codec, nvhdmi_master_con_nid_7x, 0,
3091                         AC_VERB_SET_STREAM_FORMAT, format);
3092
3093         /* turn on again (if needed) */
3094         /* enable and set the channel status audio/data flag */
3095         if (codec->spdif_status_reset && (spdif->ctls & AC_DIG1_ENABLE)) {
3096                 snd_hda_codec_write(codec,
3097                                 nvhdmi_master_con_nid_7x,
3098                                 0,
3099                                 AC_VERB_SET_DIGI_CONVERT_1,
3100                                 spdif->ctls & 0xff);
3101                 snd_hda_codec_write(codec,
3102                                 nvhdmi_master_con_nid_7x,
3103                                 0,
3104                                 AC_VERB_SET_DIGI_CONVERT_2, dataDCC2);
3105         }
3106
3107         for (i = 0; i < 4; i++) {
3108                 if (chs == 2)
3109                         channel_id = 0;
3110                 else
3111                         channel_id = i * 2;
3112
3113                 /* turn off SPDIF once;
3114                  *otherwise the IEC958 bits won't be updated
3115                  */
3116                 if (codec->spdif_status_reset &&
3117                 (spdif->ctls & AC_DIG1_ENABLE))
3118                         snd_hda_codec_write(codec,
3119                                 nvhdmi_con_nids_7x[i],
3120                                 0,
3121                                 AC_VERB_SET_DIGI_CONVERT_1,
3122                                 spdif->ctls & ~AC_DIG1_ENABLE & 0xff);
3123                 /* set the stream id */
3124                 snd_hda_codec_write(codec,
3125                                 nvhdmi_con_nids_7x[i],
3126                                 0,
3127                                 AC_VERB_SET_CHANNEL_STREAMID,
3128                                 (stream_tag << 4) | channel_id);
3129                 /* set the stream format */
3130                 snd_hda_codec_write(codec,
3131                                 nvhdmi_con_nids_7x[i],
3132                                 0,
3133                                 AC_VERB_SET_STREAM_FORMAT,
3134                                 format);
3135                 /* turn on again (if needed) */
3136                 /* enable and set the channel status audio/data flag */
3137                 if (codec->spdif_status_reset &&
3138                 (spdif->ctls & AC_DIG1_ENABLE)) {
3139                         snd_hda_codec_write(codec,
3140                                         nvhdmi_con_nids_7x[i],
3141                                         0,
3142                                         AC_VERB_SET_DIGI_CONVERT_1,
3143                                         spdif->ctls & 0xff);
3144                         snd_hda_codec_write(codec,
3145                                         nvhdmi_con_nids_7x[i],
3146                                         0,
3147                                         AC_VERB_SET_DIGI_CONVERT_2, dataDCC2);
3148                 }
3149         }
3150
3151         nvhdmi_8ch_7x_set_info_frame_parameters(codec, chs);
3152
3153         mutex_unlock(&codec->spdif_mutex);
3154         return 0;
3155 }
3156
3157 static const struct hda_pcm_stream nvhdmi_pcm_playback_8ch_7x = {
3158         .substreams = 1,
3159         .channels_min = 2,
3160         .channels_max = 8,
3161         .nid = nvhdmi_master_con_nid_7x,
3162         .rates = SUPPORTED_RATES,
3163         .maxbps = SUPPORTED_MAXBPS,
3164         .formats = SUPPORTED_FORMATS,
3165         .ops = {
3166                 .open = simple_playback_pcm_open,
3167                 .close = nvhdmi_8ch_7x_pcm_close,
3168                 .prepare = nvhdmi_8ch_7x_pcm_prepare
3169         },
3170 };
3171
3172 static int patch_nvhdmi_2ch(struct hda_codec *codec)
3173 {
3174         struct hdmi_spec *spec;
3175         int err = patch_simple_hdmi(codec, nvhdmi_master_con_nid_7x,
3176                                     nvhdmi_master_pin_nid_7x);
3177         if (err < 0)
3178                 return err;
3179
3180         codec->patch_ops.init = nvhdmi_7x_init_2ch;
3181         /* override the PCM rates, etc, as the codec doesn't give full list */
3182         spec = codec->spec;
3183         spec->pcm_playback.rates = SUPPORTED_RATES;
3184         spec->pcm_playback.maxbps = SUPPORTED_MAXBPS;
3185         spec->pcm_playback.formats = SUPPORTED_FORMATS;
3186         return 0;
3187 }
3188
3189 static int nvhdmi_7x_8ch_build_pcms(struct hda_codec *codec)
3190 {
3191         struct hdmi_spec *spec = codec->spec;
3192         int err = simple_playback_build_pcms(codec);
3193         if (!err) {
3194                 struct hda_pcm *info = get_pcm_rec(spec, 0);
3195                 info->own_chmap = true;
3196         }
3197         return err;
3198 }
3199
3200 static int nvhdmi_7x_8ch_build_controls(struct hda_codec *codec)
3201 {
3202         struct hdmi_spec *spec = codec->spec;
3203         struct hda_pcm *info;
3204         struct snd_pcm_chmap *chmap;
3205         int err;
3206
3207         err = simple_playback_build_controls(codec);
3208         if (err < 0)
3209                 return err;
3210
3211         /* add channel maps */
3212         info = get_pcm_rec(spec, 0);
3213         err = snd_pcm_add_chmap_ctls(info->pcm,
3214                                      SNDRV_PCM_STREAM_PLAYBACK,
3215                                      snd_pcm_alt_chmaps, 8, 0, &chmap);
3216         if (err < 0)
3217                 return err;
3218         switch (codec->preset->vendor_id) {
3219         case 0x10de0002:
3220         case 0x10de0003:
3221         case 0x10de0005:
3222         case 0x10de0006:
3223                 chmap->channel_mask = (1U << 2) | (1U << 8);
3224                 break;
3225         case 0x10de0007:
3226                 chmap->channel_mask = (1U << 2) | (1U << 6) | (1U << 8);
3227         }
3228         return 0;
3229 }
3230
3231 static int patch_nvhdmi_8ch_7x(struct hda_codec *codec)
3232 {
3233         struct hdmi_spec *spec;
3234         int err = patch_nvhdmi_2ch(codec);
3235         if (err < 0)
3236                 return err;
3237         spec = codec->spec;
3238         spec->multiout.max_channels = 8;
3239         spec->pcm_playback = nvhdmi_pcm_playback_8ch_7x;
3240         codec->patch_ops.init = nvhdmi_7x_init_8ch;
3241         codec->patch_ops.build_pcms = nvhdmi_7x_8ch_build_pcms;
3242         codec->patch_ops.build_controls = nvhdmi_7x_8ch_build_controls;
3243
3244         /* Initialize the audio infoframe channel mask and checksum to something
3245          * valid */
3246         nvhdmi_8ch_7x_set_info_frame_parameters(codec, 8);
3247
3248         return 0;
3249 }
3250
3251 /*
3252  * NVIDIA codecs ignore ASP mapping for 2ch - confirmed on:
3253  * - 0x10de0015
3254  * - 0x10de0040
3255  */
3256 static int nvhdmi_chmap_cea_alloc_validate_get_type(struct hdac_chmap *chmap,
3257                 struct hdac_cea_channel_speaker_allocation *cap, int channels)
3258 {
3259         if (cap->ca_index == 0x00 && channels == 2)
3260                 return SNDRV_CTL_TLVT_CHMAP_FIXED;
3261
3262         /* If the speaker allocation matches the channel count, it is OK. */
3263         if (cap->channels != channels)
3264                 return -1;
3265
3266         /* all channels are remappable freely */
3267         return SNDRV_CTL_TLVT_CHMAP_VAR;
3268 }
3269
3270 static int nvhdmi_chmap_validate(struct hdac_chmap *chmap,
3271                 int ca, int chs, unsigned char *map)
3272 {
3273         if (ca == 0x00 && (map[0] != SNDRV_CHMAP_FL || map[1] != SNDRV_CHMAP_FR))
3274                 return -EINVAL;
3275
3276         return 0;
3277 }
3278
3279 static int patch_nvhdmi(struct hda_codec *codec)
3280 {
3281         struct hdmi_spec *spec;
3282         int err;
3283
3284         err = patch_generic_hdmi(codec);
3285         if (err)
3286                 return err;
3287
3288         spec = codec->spec;
3289         spec->dyn_pin_out = true;
3290
3291         spec->chmap.ops.chmap_cea_alloc_validate_get_type =
3292                 nvhdmi_chmap_cea_alloc_validate_get_type;
3293         spec->chmap.ops.chmap_validate = nvhdmi_chmap_validate;
3294
3295         return 0;
3296 }
3297
3298 /*
3299  * The HDA codec on NVIDIA Tegra contains two scratch registers that are
3300  * accessed using vendor-defined verbs. These registers can be used for
3301  * interoperability between the HDA and HDMI drivers.
3302  */
3303
3304 /* Audio Function Group node */
3305 #define NVIDIA_AFG_NID 0x01
3306
3307 /*
3308  * The SCRATCH0 register is used to notify the HDMI codec of changes in audio
3309  * format. On Tegra, bit 31 is used as a trigger that causes an interrupt to
3310  * be raised in the HDMI codec. The remainder of the bits is arbitrary. This
3311  * implementation stores the HDA format (see AC_FMT_*) in bits [15:0] and an
3312  * additional bit (at position 30) to signal the validity of the format.
3313  *
3314  * | 31      | 30    | 29  16 | 15   0 |
3315  * +---------+-------+--------+--------+
3316  * | TRIGGER | VALID | UNUSED | FORMAT |
3317  * +-----------------------------------|
3318  *
3319  * Note that for the trigger bit to take effect it needs to change value
3320  * (i.e. it needs to be toggled).
3321  */
3322 #define NVIDIA_GET_SCRATCH0             0xfa6
3323 #define NVIDIA_SET_SCRATCH0_BYTE0       0xfa7
3324 #define NVIDIA_SET_SCRATCH0_BYTE1       0xfa8
3325 #define NVIDIA_SET_SCRATCH0_BYTE2       0xfa9
3326 #define NVIDIA_SET_SCRATCH0_BYTE3       0xfaa
3327 #define NVIDIA_SCRATCH_TRIGGER (1 << 7)
3328 #define NVIDIA_SCRATCH_VALID   (1 << 6)
3329
3330 #define NVIDIA_GET_SCRATCH1             0xfab
3331 #define NVIDIA_SET_SCRATCH1_BYTE0       0xfac
3332 #define NVIDIA_SET_SCRATCH1_BYTE1       0xfad
3333 #define NVIDIA_SET_SCRATCH1_BYTE2       0xfae
3334 #define NVIDIA_SET_SCRATCH1_BYTE3       0xfaf
3335
3336 /*
3337  * The format parameter is the HDA audio format (see AC_FMT_*). If set to 0,
3338  * the format is invalidated so that the HDMI codec can be disabled.
3339  */
3340 static void tegra_hdmi_set_format(struct hda_codec *codec, unsigned int format)
3341 {
3342         unsigned int value;
3343
3344         /* bits [31:30] contain the trigger and valid bits */
3345         value = snd_hda_codec_read(codec, NVIDIA_AFG_NID, 0,
3346                                    NVIDIA_GET_SCRATCH0, 0);
3347         value = (value >> 24) & 0xff;
3348
3349         /* bits [15:0] are used to store the HDA format */
3350         snd_hda_codec_write(codec, NVIDIA_AFG_NID, 0,
3351                             NVIDIA_SET_SCRATCH0_BYTE0,
3352                             (format >> 0) & 0xff);
3353         snd_hda_codec_write(codec, NVIDIA_AFG_NID, 0,
3354                             NVIDIA_SET_SCRATCH0_BYTE1,
3355                             (format >> 8) & 0xff);
3356
3357         /* bits [16:24] are unused */
3358         snd_hda_codec_write(codec, NVIDIA_AFG_NID, 0,
3359                             NVIDIA_SET_SCRATCH0_BYTE2, 0);
3360
3361         /*
3362          * Bit 30 signals that the data is valid and hence that HDMI audio can
3363          * be enabled.
3364          */
3365         if (format == 0)
3366                 value &= ~NVIDIA_SCRATCH_VALID;
3367         else
3368                 value |= NVIDIA_SCRATCH_VALID;
3369
3370         /*
3371          * Whenever the trigger bit is toggled, an interrupt is raised in the
3372          * HDMI codec. The HDMI driver will use that as trigger to update its
3373          * configuration.
3374          */
3375         value ^= NVIDIA_SCRATCH_TRIGGER;
3376
3377         snd_hda_codec_write(codec, NVIDIA_AFG_NID, 0,
3378                             NVIDIA_SET_SCRATCH0_BYTE3, value);
3379 }
3380
3381 static int tegra_hdmi_pcm_prepare(struct hda_pcm_stream *hinfo,
3382                                   struct hda_codec *codec,
3383                                   unsigned int stream_tag,
3384                                   unsigned int format,
3385                                   struct snd_pcm_substream *substream)
3386 {
3387         int err;
3388
3389         err = generic_hdmi_playback_pcm_prepare(hinfo, codec, stream_tag,
3390                                                 format, substream);
3391         if (err < 0)
3392                 return err;
3393
3394         /* notify the HDMI codec of the format change */
3395         tegra_hdmi_set_format(codec, format);
3396
3397         return 0;
3398 }
3399
3400 static int tegra_hdmi_pcm_cleanup(struct hda_pcm_stream *hinfo,
3401                                   struct hda_codec *codec,
3402                                   struct snd_pcm_substream *substream)
3403 {
3404         /* invalidate the format in the HDMI codec */
3405         tegra_hdmi_set_format(codec, 0);
3406
3407         return generic_hdmi_playback_pcm_cleanup(hinfo, codec, substream);
3408 }
3409
3410 static struct hda_pcm *hda_find_pcm_by_type(struct hda_codec *codec, int type)
3411 {
3412         struct hdmi_spec *spec = codec->spec;
3413         unsigned int i;
3414
3415         for (i = 0; i < spec->num_pins; i++) {
3416                 struct hda_pcm *pcm = get_pcm_rec(spec, i);
3417
3418                 if (pcm->pcm_type == type)
3419                         return pcm;
3420         }
3421
3422         return NULL;
3423 }
3424
3425 static int tegra_hdmi_build_pcms(struct hda_codec *codec)
3426 {
3427         struct hda_pcm_stream *stream;
3428         struct hda_pcm *pcm;
3429         int err;
3430
3431         err = generic_hdmi_build_pcms(codec);
3432         if (err < 0)
3433                 return err;
3434
3435         pcm = hda_find_pcm_by_type(codec, HDA_PCM_TYPE_HDMI);
3436         if (!pcm)
3437                 return -ENODEV;
3438
3439         /*
3440          * Override ->prepare() and ->cleanup() operations to notify the HDMI
3441          * codec about format changes.
3442          */
3443         stream = &pcm->stream[SNDRV_PCM_STREAM_PLAYBACK];
3444         stream->ops.prepare = tegra_hdmi_pcm_prepare;
3445         stream->ops.cleanup = tegra_hdmi_pcm_cleanup;
3446
3447         return 0;
3448 }
3449
3450 static int patch_tegra_hdmi(struct hda_codec *codec)
3451 {
3452         int err;
3453
3454         err = patch_generic_hdmi(codec);
3455         if (err)
3456                 return err;
3457
3458         codec->patch_ops.build_pcms = tegra_hdmi_build_pcms;
3459
3460         return 0;
3461 }
3462
3463 /*
3464  * ATI/AMD-specific implementations
3465  */
3466
3467 #define is_amdhdmi_rev3_or_later(codec) \
3468         ((codec)->core.vendor_id == 0x1002aa01 && \
3469          ((codec)->core.revision_id & 0xff00) >= 0x0300)
3470 #define has_amd_full_remap_support(codec) is_amdhdmi_rev3_or_later(codec)
3471
3472 /* ATI/AMD specific HDA pin verbs, see the AMD HDA Verbs specification */
3473 #define ATI_VERB_SET_CHANNEL_ALLOCATION 0x771
3474 #define ATI_VERB_SET_DOWNMIX_INFO       0x772
3475 #define ATI_VERB_SET_MULTICHANNEL_01    0x777
3476 #define ATI_VERB_SET_MULTICHANNEL_23    0x778
3477 #define ATI_VERB_SET_MULTICHANNEL_45    0x779
3478 #define ATI_VERB_SET_MULTICHANNEL_67    0x77a
3479 #define ATI_VERB_SET_HBR_CONTROL        0x77c
3480 #define ATI_VERB_SET_MULTICHANNEL_1     0x785
3481 #define ATI_VERB_SET_MULTICHANNEL_3     0x786
3482 #define ATI_VERB_SET_MULTICHANNEL_5     0x787
3483 #define ATI_VERB_SET_MULTICHANNEL_7     0x788
3484 #define ATI_VERB_SET_MULTICHANNEL_MODE  0x789
3485 #define ATI_VERB_GET_CHANNEL_ALLOCATION 0xf71
3486 #define ATI_VERB_GET_DOWNMIX_INFO       0xf72
3487 #define ATI_VERB_GET_MULTICHANNEL_01    0xf77
3488 #define ATI_VERB_GET_MULTICHANNEL_23    0xf78
3489 #define ATI_VERB_GET_MULTICHANNEL_45    0xf79
3490 #define ATI_VERB_GET_MULTICHANNEL_67    0xf7a
3491 #define ATI_VERB_GET_HBR_CONTROL        0xf7c
3492 #define ATI_VERB_GET_MULTICHANNEL_1     0xf85
3493 #define ATI_VERB_GET_MULTICHANNEL_3     0xf86
3494 #define ATI_VERB_GET_MULTICHANNEL_5     0xf87
3495 #define ATI_VERB_GET_MULTICHANNEL_7     0xf88
3496 #define ATI_VERB_GET_MULTICHANNEL_MODE  0xf89
3497
3498 /* AMD specific HDA cvt verbs */
3499 #define ATI_VERB_SET_RAMP_RATE          0x770
3500 #define ATI_VERB_GET_RAMP_RATE          0xf70
3501
3502 #define ATI_OUT_ENABLE 0x1
3503
3504 #define ATI_MULTICHANNEL_MODE_PAIRED    0
3505 #define ATI_MULTICHANNEL_MODE_SINGLE    1
3506
3507 #define ATI_HBR_CAPABLE 0x01
3508 #define ATI_HBR_ENABLE 0x10
3509
3510 static int atihdmi_pin_get_eld(struct hda_codec *codec, hda_nid_t nid,
3511                            unsigned char *buf, int *eld_size)
3512 {
3513         /* call hda_eld.c ATI/AMD-specific function */
3514         return snd_hdmi_get_eld_ati(codec, nid, buf, eld_size,
3515                                     is_amdhdmi_rev3_or_later(codec));
3516 }
3517
3518 static void atihdmi_pin_setup_infoframe(struct hda_codec *codec, hda_nid_t pin_nid, int ca,
3519                                         int active_channels, int conn_type)
3520 {
3521         snd_hda_codec_write(codec, pin_nid, 0, ATI_VERB_SET_CHANNEL_ALLOCATION, ca);
3522 }
3523
3524 static int atihdmi_paired_swap_fc_lfe(int pos)
3525 {
3526         /*
3527          * ATI/AMD have automatic FC/LFE swap built-in
3528          * when in pairwise mapping mode.
3529          */
3530
3531         switch (pos) {
3532                 /* see channel_allocations[].speakers[] */
3533                 case 2: return 3;
3534                 case 3: return 2;
3535                 default: break;
3536         }
3537
3538         return pos;
3539 }
3540
3541 static int atihdmi_paired_chmap_validate(struct hdac_chmap *chmap,
3542                         int ca, int chs, unsigned char *map)
3543 {
3544         struct hdac_cea_channel_speaker_allocation *cap;
3545         int i, j;
3546
3547         /* check that only channel pairs need to be remapped on old pre-rev3 ATI/AMD */
3548
3549         cap = snd_hdac_get_ch_alloc_from_ca(ca);
3550         for (i = 0; i < chs; ++i) {
3551                 int mask = snd_hdac_chmap_to_spk_mask(map[i]);
3552                 bool ok = false;
3553                 bool companion_ok = false;
3554
3555                 if (!mask)
3556                         continue;
3557
3558                 for (j = 0 + i % 2; j < 8; j += 2) {
3559                         int chan_idx = 7 - atihdmi_paired_swap_fc_lfe(j);
3560                         if (cap->speakers[chan_idx] == mask) {
3561                                 /* channel is in a supported position */
3562                                 ok = true;
3563
3564                                 if (i % 2 == 0 && i + 1 < chs) {
3565                                         /* even channel, check the odd companion */
3566                                         int comp_chan_idx = 7 - atihdmi_paired_swap_fc_lfe(j + 1);
3567                                         int comp_mask_req = snd_hdac_chmap_to_spk_mask(map[i+1]);
3568                                         int comp_mask_act = cap->speakers[comp_chan_idx];
3569
3570                                         if (comp_mask_req == comp_mask_act)
3571                                                 companion_ok = true;
3572                                         else
3573                                                 return -EINVAL;
3574                                 }
3575                                 break;
3576                         }
3577                 }
3578
3579                 if (!ok)
3580                         return -EINVAL;
3581
3582                 if (companion_ok)
3583                         i++; /* companion channel already checked */
3584         }
3585
3586         return 0;
3587 }
3588
3589 static int atihdmi_pin_set_slot_channel(struct hdac_device *hdac,
3590                 hda_nid_t pin_nid, int hdmi_slot, int stream_channel)
3591 {
3592         struct hda_codec *codec = container_of(hdac, struct hda_codec, core);
3593         int verb;
3594         int ati_channel_setup = 0;
3595
3596         if (hdmi_slot > 7)
3597                 return -EINVAL;
3598
3599         if (!has_amd_full_remap_support(codec)) {
3600                 hdmi_slot = atihdmi_paired_swap_fc_lfe(hdmi_slot);
3601
3602                 /* In case this is an odd slot but without stream channel, do not
3603                  * disable the slot since the corresponding even slot could have a
3604                  * channel. In case neither have a channel, the slot pair will be
3605                  * disabled when this function is called for the even slot. */
3606                 if (hdmi_slot % 2 != 0 && stream_channel == 0xf)
3607                         return 0;
3608
3609                 hdmi_slot -= hdmi_slot % 2;
3610
3611                 if (stream_channel != 0xf)
3612                         stream_channel -= stream_channel % 2;
3613         }
3614
3615         verb = ATI_VERB_SET_MULTICHANNEL_01 + hdmi_slot/2 + (hdmi_slot % 2) * 0x00e;
3616
3617         /* ati_channel_setup format: [7..4] = stream_channel_id, [1] = mute, [0] = enable */
3618
3619         if (stream_channel != 0xf)
3620                 ati_channel_setup = (stream_channel << 4) | ATI_OUT_ENABLE;
3621
3622         return snd_hda_codec_write(codec, pin_nid, 0, verb, ati_channel_setup);
3623 }
3624
3625 static int atihdmi_pin_get_slot_channel(struct hdac_device *hdac,
3626                                 hda_nid_t pin_nid, int asp_slot)
3627 {
3628         struct hda_codec *codec = container_of(hdac, struct hda_codec, core);
3629         bool was_odd = false;
3630         int ati_asp_slot = asp_slot;
3631         int verb;
3632         int ati_channel_setup;
3633
3634         if (asp_slot > 7)
3635                 return -EINVAL;
3636
3637         if (!has_amd_full_remap_support(codec)) {
3638                 ati_asp_slot = atihdmi_paired_swap_fc_lfe(asp_slot);
3639                 if (ati_asp_slot % 2 != 0) {
3640                         ati_asp_slot -= 1;
3641                         was_odd = true;
3642                 }
3643         }
3644
3645         verb = ATI_VERB_GET_MULTICHANNEL_01 + ati_asp_slot/2 + (ati_asp_slot % 2) * 0x00e;
3646
3647         ati_channel_setup = snd_hda_codec_read(codec, pin_nid, 0, verb, 0);
3648
3649         if (!(ati_channel_setup & ATI_OUT_ENABLE))
3650                 return 0xf;
3651
3652         return ((ati_channel_setup & 0xf0) >> 4) + !!was_odd;
3653 }
3654
3655 static int atihdmi_paired_chmap_cea_alloc_validate_get_type(
3656                 struct hdac_chmap *chmap,
3657                 struct hdac_cea_channel_speaker_allocation *cap,
3658                 int channels)
3659 {
3660         int c;
3661
3662         /*
3663          * Pre-rev3 ATI/AMD codecs operate in a paired channel mode, so
3664          * we need to take that into account (a single channel may take 2
3665          * channel slots if we need to carry a silent channel next to it).
3666          * On Rev3+ AMD codecs this function is not used.
3667          */
3668         int chanpairs = 0;
3669
3670         /* We only produce even-numbered channel count TLVs */
3671         if ((channels % 2) != 0)
3672                 return -1;
3673
3674         for (c = 0; c < 7; c += 2) {
3675                 if (cap->speakers[c] || cap->speakers[c+1])
3676                         chanpairs++;
3677         }
3678
3679         if (chanpairs * 2 != channels)
3680                 return -1;
3681
3682         return SNDRV_CTL_TLVT_CHMAP_PAIRED;
3683 }
3684
3685 static void atihdmi_paired_cea_alloc_to_tlv_chmap(struct hdac_chmap *hchmap,
3686                 struct hdac_cea_channel_speaker_allocation *cap,
3687                 unsigned int *chmap, int channels)
3688 {
3689         /* produce paired maps for pre-rev3 ATI/AMD codecs */
3690         int count = 0;
3691         int c;
3692
3693         for (c = 7; c >= 0; c--) {
3694                 int chan = 7 - atihdmi_paired_swap_fc_lfe(7 - c);
3695                 int spk = cap->speakers[chan];
3696                 if (!spk) {
3697                         /* add N/A channel if the companion channel is occupied */
3698                         if (cap->speakers[chan + (chan % 2 ? -1 : 1)])
3699                                 chmap[count++] = SNDRV_CHMAP_NA;
3700
3701                         continue;
3702                 }
3703
3704                 chmap[count++] = snd_hdac_spk_to_chmap(spk);
3705         }
3706
3707         WARN_ON(count != channels);
3708 }
3709
3710 static int atihdmi_pin_hbr_setup(struct hda_codec *codec, hda_nid_t pin_nid,
3711                                  bool hbr)
3712 {
3713         int hbr_ctl, hbr_ctl_new;
3714
3715         hbr_ctl = snd_hda_codec_read(codec, pin_nid, 0, ATI_VERB_GET_HBR_CONTROL, 0);
3716         if (hbr_ctl >= 0 && (hbr_ctl & ATI_HBR_CAPABLE)) {
3717                 if (hbr)
3718                         hbr_ctl_new = hbr_ctl | ATI_HBR_ENABLE;
3719                 else
3720                         hbr_ctl_new = hbr_ctl & ~ATI_HBR_ENABLE;
3721
3722                 codec_dbg(codec,
3723                           "atihdmi_pin_hbr_setup: NID=0x%x, %shbr-ctl=0x%x\n",
3724                                 pin_nid,
3725                                 hbr_ctl == hbr_ctl_new ? "" : "new-",
3726                                 hbr_ctl_new);
3727
3728                 if (hbr_ctl != hbr_ctl_new)
3729                         snd_hda_codec_write(codec, pin_nid, 0,
3730                                                 ATI_VERB_SET_HBR_CONTROL,
3731                                                 hbr_ctl_new);
3732
3733         } else if (hbr)
3734                 return -EINVAL;
3735
3736         return 0;
3737 }
3738
3739 static int atihdmi_setup_stream(struct hda_codec *codec, hda_nid_t cvt_nid,
3740                                 hda_nid_t pin_nid, u32 stream_tag, int format)
3741 {
3742
3743         if (is_amdhdmi_rev3_or_later(codec)) {
3744                 int ramp_rate = 180; /* default as per AMD spec */
3745                 /* disable ramp-up/down for non-pcm as per AMD spec */
3746                 if (format & AC_FMT_TYPE_NON_PCM)
3747                         ramp_rate = 0;
3748
3749                 snd_hda_codec_write(codec, cvt_nid, 0, ATI_VERB_SET_RAMP_RATE, ramp_rate);
3750         }
3751
3752         return hdmi_setup_stream(codec, cvt_nid, pin_nid, stream_tag, format);
3753 }
3754
3755
3756 static int atihdmi_init(struct hda_codec *codec)
3757 {
3758         struct hdmi_spec *spec = codec->spec;
3759         int pin_idx, err;
3760
3761         err = generic_hdmi_init(codec);
3762
3763         if (err)
3764                 return err;
3765
3766         for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
3767                 struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
3768
3769                 /* make sure downmix information in infoframe is zero */
3770                 snd_hda_codec_write(codec, per_pin->pin_nid, 0, ATI_VERB_SET_DOWNMIX_INFO, 0);
3771
3772                 /* enable channel-wise remap mode if supported */
3773                 if (has_amd_full_remap_support(codec))
3774                         snd_hda_codec_write(codec, per_pin->pin_nid, 0,
3775                                             ATI_VERB_SET_MULTICHANNEL_MODE,
3776                                             ATI_MULTICHANNEL_MODE_SINGLE);
3777         }
3778
3779         return 0;
3780 }
3781
3782 static int patch_atihdmi(struct hda_codec *codec)
3783 {
3784         struct hdmi_spec *spec;
3785         struct hdmi_spec_per_cvt *per_cvt;
3786         int err, cvt_idx;
3787
3788         err = patch_generic_hdmi(codec);
3789
3790         if (err)
3791                 return err;
3792
3793         codec->patch_ops.init = atihdmi_init;
3794
3795         spec = codec->spec;
3796
3797         spec->ops.pin_get_eld = atihdmi_pin_get_eld;
3798         spec->ops.pin_setup_infoframe = atihdmi_pin_setup_infoframe;
3799         spec->ops.pin_hbr_setup = atihdmi_pin_hbr_setup;
3800         spec->ops.setup_stream = atihdmi_setup_stream;
3801
3802         spec->chmap.ops.pin_get_slot_channel = atihdmi_pin_get_slot_channel;
3803         spec->chmap.ops.pin_set_slot_channel = atihdmi_pin_set_slot_channel;
3804
3805         if (!has_amd_full_remap_support(codec)) {
3806                 /* override to ATI/AMD-specific versions with pairwise mapping */
3807                 spec->chmap.ops.chmap_cea_alloc_validate_get_type =
3808                         atihdmi_paired_chmap_cea_alloc_validate_get_type;
3809                 spec->chmap.ops.cea_alloc_to_tlv_chmap =
3810                                 atihdmi_paired_cea_alloc_to_tlv_chmap;
3811                 spec->chmap.ops.chmap_validate = atihdmi_paired_chmap_validate;
3812         }
3813
3814         /* ATI/AMD converters do not advertise all of their capabilities */
3815         for (cvt_idx = 0; cvt_idx < spec->num_cvts; cvt_idx++) {
3816                 per_cvt = get_cvt(spec, cvt_idx);
3817                 per_cvt->channels_max = max(per_cvt->channels_max, 8u);
3818                 per_cvt->rates |= SUPPORTED_RATES;
3819                 per_cvt->formats |= SUPPORTED_FORMATS;
3820                 per_cvt->maxbps = max(per_cvt->maxbps, 24u);
3821         }
3822
3823         spec->chmap.channels_max = max(spec->chmap.channels_max, 8u);
3824
3825         /* AMD GPUs have neither EPSS nor CLKSTOP bits, hence preventing
3826          * the link-down as is.  Tell the core to allow it.
3827          */
3828         codec->link_down_at_suspend = 1;
3829
3830         return 0;
3831 }
3832
3833 /* VIA HDMI Implementation */
3834 #define VIAHDMI_CVT_NID 0x02    /* audio converter1 */
3835 #define VIAHDMI_PIN_NID 0x03    /* HDMI output pin1 */
3836
3837 static int patch_via_hdmi(struct hda_codec *codec)
3838 {
3839         return patch_simple_hdmi(codec, VIAHDMI_CVT_NID, VIAHDMI_PIN_NID);
3840 }
3841
3842 /*
3843  * patch entries
3844  */
3845 static const struct hda_device_id snd_hda_id_hdmi[] = {
3846 HDA_CODEC_ENTRY(0x1002793c, "RS600 HDMI",       patch_atihdmi),
3847 HDA_CODEC_ENTRY(0x10027919, "RS600 HDMI",       patch_atihdmi),
3848 HDA_CODEC_ENTRY(0x1002791a, "RS690/780 HDMI",   patch_atihdmi),
3849 HDA_CODEC_ENTRY(0x1002aa01, "R6xx HDMI",        patch_atihdmi),
3850 HDA_CODEC_ENTRY(0x10951390, "SiI1390 HDMI",     patch_generic_hdmi),
3851 HDA_CODEC_ENTRY(0x10951392, "SiI1392 HDMI",     patch_generic_hdmi),
3852 HDA_CODEC_ENTRY(0x17e80047, "Chrontel HDMI",    patch_generic_hdmi),
3853 HDA_CODEC_ENTRY(0x10de0001, "MCP73 HDMI",       patch_nvhdmi_2ch),
3854 HDA_CODEC_ENTRY(0x10de0002, "MCP77/78 HDMI",    patch_nvhdmi_8ch_7x),
3855 HDA_CODEC_ENTRY(0x10de0003, "MCP77/78 HDMI",    patch_nvhdmi_8ch_7x),
3856 HDA_CODEC_ENTRY(0x10de0004, "GPU 04 HDMI",      patch_nvhdmi_8ch_7x),
3857 HDA_CODEC_ENTRY(0x10de0005, "MCP77/78 HDMI",    patch_nvhdmi_8ch_7x),
3858 HDA_CODEC_ENTRY(0x10de0006, "MCP77/78 HDMI",    patch_nvhdmi_8ch_7x),
3859 HDA_CODEC_ENTRY(0x10de0007, "MCP79/7A HDMI",    patch_nvhdmi_8ch_7x),
3860 HDA_CODEC_ENTRY(0x10de0008, "GPU 08 HDMI/DP",   patch_nvhdmi),
3861 HDA_CODEC_ENTRY(0x10de0009, "GPU 09 HDMI/DP",   patch_nvhdmi),
3862 HDA_CODEC_ENTRY(0x10de000a, "GPU 0a HDMI/DP",   patch_nvhdmi),
3863 HDA_CODEC_ENTRY(0x10de000b, "GPU 0b HDMI/DP",   patch_nvhdmi),
3864 HDA_CODEC_ENTRY(0x10de000c, "MCP89 HDMI",       patch_nvhdmi),
3865 HDA_CODEC_ENTRY(0x10de000d, "GPU 0d HDMI/DP",   patch_nvhdmi),
3866 HDA_CODEC_ENTRY(0x10de0010, "GPU 10 HDMI/DP",   patch_nvhdmi),
3867 HDA_CODEC_ENTRY(0x10de0011, "GPU 11 HDMI/DP",   patch_nvhdmi),
3868 HDA_CODEC_ENTRY(0x10de0012, "GPU 12 HDMI/DP",   patch_nvhdmi),
3869 HDA_CODEC_ENTRY(0x10de0013, "GPU 13 HDMI/DP",   patch_nvhdmi),
3870 HDA_CODEC_ENTRY(0x10de0014, "GPU 14 HDMI/DP",   patch_nvhdmi),
3871 HDA_CODEC_ENTRY(0x10de0015, "GPU 15 HDMI/DP",   patch_nvhdmi),
3872 HDA_CODEC_ENTRY(0x10de0016, "GPU 16 HDMI/DP",   patch_nvhdmi),
3873 /* 17 is known to be absent */
3874 HDA_CODEC_ENTRY(0x10de0018, "GPU 18 HDMI/DP",   patch_nvhdmi),
3875 HDA_CODEC_ENTRY(0x10de0019, "GPU 19 HDMI/DP",   patch_nvhdmi),
3876 HDA_CODEC_ENTRY(0x10de001a, "GPU 1a HDMI/DP",   patch_nvhdmi),
3877 HDA_CODEC_ENTRY(0x10de001b, "GPU 1b HDMI/DP",   patch_nvhdmi),
3878 HDA_CODEC_ENTRY(0x10de001c, "GPU 1c HDMI/DP",   patch_nvhdmi),
3879 HDA_CODEC_ENTRY(0x10de0020, "Tegra30 HDMI",     patch_tegra_hdmi),
3880 HDA_CODEC_ENTRY(0x10de0022, "Tegra114 HDMI",    patch_tegra_hdmi),
3881 HDA_CODEC_ENTRY(0x10de0028, "Tegra124 HDMI",    patch_tegra_hdmi),
3882 HDA_CODEC_ENTRY(0x10de0029, "Tegra210 HDMI/DP", patch_tegra_hdmi),
3883 HDA_CODEC_ENTRY(0x10de002d, "Tegra186 HDMI/DP0", patch_tegra_hdmi),
3884 HDA_CODEC_ENTRY(0x10de002e, "Tegra186 HDMI/DP1", patch_tegra_hdmi),
3885 HDA_CODEC_ENTRY(0x10de002f, "Tegra194 HDMI/DP2", patch_tegra_hdmi),
3886 HDA_CODEC_ENTRY(0x10de0030, "Tegra194 HDMI/DP3", patch_tegra_hdmi),
3887 HDA_CODEC_ENTRY(0x10de0040, "GPU 40 HDMI/DP",   patch_nvhdmi),
3888 HDA_CODEC_ENTRY(0x10de0041, "GPU 41 HDMI/DP",   patch_nvhdmi),
3889 HDA_CODEC_ENTRY(0x10de0042, "GPU 42 HDMI/DP",   patch_nvhdmi),
3890 HDA_CODEC_ENTRY(0x10de0043, "GPU 43 HDMI/DP",   patch_nvhdmi),
3891 HDA_CODEC_ENTRY(0x10de0044, "GPU 44 HDMI/DP",   patch_nvhdmi),
3892 HDA_CODEC_ENTRY(0x10de0045, "GPU 45 HDMI/DP",   patch_nvhdmi),
3893 HDA_CODEC_ENTRY(0x10de0050, "GPU 50 HDMI/DP",   patch_nvhdmi),
3894 HDA_CODEC_ENTRY(0x10de0051, "GPU 51 HDMI/DP",   patch_nvhdmi),
3895 HDA_CODEC_ENTRY(0x10de0052, "GPU 52 HDMI/DP",   patch_nvhdmi),
3896 HDA_CODEC_ENTRY(0x10de0060, "GPU 60 HDMI/DP",   patch_nvhdmi),
3897 HDA_CODEC_ENTRY(0x10de0061, "GPU 61 HDMI/DP",   patch_nvhdmi),
3898 HDA_CODEC_ENTRY(0x10de0062, "GPU 62 HDMI/DP",   patch_nvhdmi),
3899 HDA_CODEC_ENTRY(0x10de0067, "MCP67 HDMI",       patch_nvhdmi_2ch),
3900 HDA_CODEC_ENTRY(0x10de0070, "GPU 70 HDMI/DP",   patch_nvhdmi),
3901 HDA_CODEC_ENTRY(0x10de0071, "GPU 71 HDMI/DP",   patch_nvhdmi),
3902 HDA_CODEC_ENTRY(0x10de0072, "GPU 72 HDMI/DP",   patch_nvhdmi),
3903 HDA_CODEC_ENTRY(0x10de0073, "GPU 73 HDMI/DP",   patch_nvhdmi),
3904 HDA_CODEC_ENTRY(0x10de0074, "GPU 74 HDMI/DP",   patch_nvhdmi),
3905 HDA_CODEC_ENTRY(0x10de0076, "GPU 76 HDMI/DP",   patch_nvhdmi),
3906 HDA_CODEC_ENTRY(0x10de007b, "GPU 7b HDMI/DP",   patch_nvhdmi),
3907 HDA_CODEC_ENTRY(0x10de007c, "GPU 7c HDMI/DP",   patch_nvhdmi),
3908 HDA_CODEC_ENTRY(0x10de007d, "GPU 7d HDMI/DP",   patch_nvhdmi),
3909 HDA_CODEC_ENTRY(0x10de007e, "GPU 7e HDMI/DP",   patch_nvhdmi),
3910 HDA_CODEC_ENTRY(0x10de0080, "GPU 80 HDMI/DP",   patch_nvhdmi),
3911 HDA_CODEC_ENTRY(0x10de0081, "GPU 81 HDMI/DP",   patch_nvhdmi),
3912 HDA_CODEC_ENTRY(0x10de0082, "GPU 82 HDMI/DP",   patch_nvhdmi),
3913 HDA_CODEC_ENTRY(0x10de0083, "GPU 83 HDMI/DP",   patch_nvhdmi),
3914 HDA_CODEC_ENTRY(0x10de0084, "GPU 84 HDMI/DP",   patch_nvhdmi),
3915 HDA_CODEC_ENTRY(0x10de0090, "GPU 90 HDMI/DP",   patch_nvhdmi),
3916 HDA_CODEC_ENTRY(0x10de0091, "GPU 91 HDMI/DP",   patch_nvhdmi),
3917 HDA_CODEC_ENTRY(0x10de0092, "GPU 92 HDMI/DP",   patch_nvhdmi),
3918 HDA_CODEC_ENTRY(0x10de0093, "GPU 93 HDMI/DP",   patch_nvhdmi),
3919 HDA_CODEC_ENTRY(0x10de0094, "GPU 94 HDMI/DP",   patch_nvhdmi),
3920 HDA_CODEC_ENTRY(0x10de0095, "GPU 95 HDMI/DP",   patch_nvhdmi),
3921 HDA_CODEC_ENTRY(0x10de0097, "GPU 97 HDMI/DP",   patch_nvhdmi),
3922 HDA_CODEC_ENTRY(0x10de0098, "GPU 98 HDMI/DP",   patch_nvhdmi),
3923 HDA_CODEC_ENTRY(0x10de0099, "GPU 99 HDMI/DP",   patch_nvhdmi),
3924 HDA_CODEC_ENTRY(0x10de8001, "MCP73 HDMI",       patch_nvhdmi_2ch),
3925 HDA_CODEC_ENTRY(0x10de8067, "MCP67/68 HDMI",    patch_nvhdmi_2ch),
3926 HDA_CODEC_ENTRY(0x11069f80, "VX900 HDMI/DP",    patch_via_hdmi),
3927 HDA_CODEC_ENTRY(0x11069f81, "VX900 HDMI/DP",    patch_via_hdmi),
3928 HDA_CODEC_ENTRY(0x11069f84, "VX11 HDMI/DP",     patch_generic_hdmi),
3929 HDA_CODEC_ENTRY(0x11069f85, "VX11 HDMI/DP",     patch_generic_hdmi),
3930 HDA_CODEC_ENTRY(0x80860054, "IbexPeak HDMI",    patch_i915_cpt_hdmi),
3931 HDA_CODEC_ENTRY(0x80862800, "Geminilake HDMI",  patch_i915_glk_hdmi),
3932 HDA_CODEC_ENTRY(0x80862801, "Bearlake HDMI",    patch_generic_hdmi),
3933 HDA_CODEC_ENTRY(0x80862802, "Cantiga HDMI",     patch_generic_hdmi),
3934 HDA_CODEC_ENTRY(0x80862803, "Eaglelake HDMI",   patch_generic_hdmi),
3935 HDA_CODEC_ENTRY(0x80862804, "IbexPeak HDMI",    patch_i915_cpt_hdmi),
3936 HDA_CODEC_ENTRY(0x80862805, "CougarPoint HDMI", patch_i915_cpt_hdmi),
3937 HDA_CODEC_ENTRY(0x80862806, "PantherPoint HDMI", patch_i915_cpt_hdmi),
3938 HDA_CODEC_ENTRY(0x80862807, "Haswell HDMI",     patch_i915_hsw_hdmi),
3939 HDA_CODEC_ENTRY(0x80862808, "Broadwell HDMI",   patch_i915_hsw_hdmi),
3940 HDA_CODEC_ENTRY(0x80862809, "Skylake HDMI",     patch_i915_hsw_hdmi),
3941 HDA_CODEC_ENTRY(0x8086280a, "Broxton HDMI",     patch_i915_hsw_hdmi),
3942 HDA_CODEC_ENTRY(0x8086280b, "Kabylake HDMI",    patch_i915_hsw_hdmi),
3943 HDA_CODEC_ENTRY(0x8086280c, "Cannonlake HDMI",  patch_i915_glk_hdmi),
3944 HDA_CODEC_ENTRY(0x8086280d, "Geminilake HDMI",  patch_i915_glk_hdmi),
3945 HDA_CODEC_ENTRY(0x8086280f, "Icelake HDMI",     patch_i915_icl_hdmi),
3946 HDA_CODEC_ENTRY(0x80862880, "CedarTrail HDMI",  patch_generic_hdmi),
3947 HDA_CODEC_ENTRY(0x80862882, "Valleyview2 HDMI", patch_i915_byt_hdmi),
3948 HDA_CODEC_ENTRY(0x80862883, "Braswell HDMI",    patch_i915_byt_hdmi),
3949 HDA_CODEC_ENTRY(0x808629fb, "Crestline HDMI",   patch_generic_hdmi),
3950 /* special ID for generic HDMI */
3951 HDA_CODEC_ENTRY(HDA_CODEC_ID_GENERIC_HDMI, "Generic HDMI", patch_generic_hdmi),
3952 {} /* terminator */
3953 };
3954 MODULE_DEVICE_TABLE(hdaudio, snd_hda_id_hdmi);
3955
3956 MODULE_LICENSE("GPL");
3957 MODULE_DESCRIPTION("HDMI HD-audio codec");
3958 MODULE_ALIAS("snd-hda-codec-intelhdmi");
3959 MODULE_ALIAS("snd-hda-codec-nvhdmi");
3960 MODULE_ALIAS("snd-hda-codec-atihdmi");
3961
3962 static struct hda_codec_driver hdmi_driver = {
3963         .id = snd_hda_id_hdmi,
3964 };
3965
3966 module_hda_codec_driver(hdmi_driver);