sound/pci/hda/patch_hdmi.c

   1 /*
   2  *
   3  *  patch_hdmi.c - routines for HDMI/DisplayPort codecs
   4  *
   5  *  Copyright(c) 2008-2010 Intel Corporation. All rights reserved.
   6  *  Copyright (c) 2006 ATI Technologies Inc.
   7  *  Copyright (c) 2008 NVIDIA Corp.  All rights reserved.
   8  *  Copyright (c) 2008 Wei Ni <wni@nvidia.com>
   9  *
  10  *  Authors:
  11  *                      Wu Fengguang <wfg@linux.intel.com>
  12  *
  13  *  Maintained by:
  14  *                      Wu Fengguang <wfg@linux.intel.com>
  15  *
  16  *  This program is free software; you can redistribute it and/or modify it
  17  *  under the terms of the GNU General Public License as published by the Free
  18  *  Software Foundation; either version 2 of the License, or (at your option)
  19  *  any later version.
  20  *
  21  *  This program is distributed in the hope that it will be useful, but
  22  *  WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  23  *  or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  24  *  for more details.
  25  *
  26  *  You should have received a copy of the GNU General Public License
  27  *  along with this program; if not, write to the Free Software Foundation,
  28  *  Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  29  */
  30
  31 #include <linux/init.h>
  32 #include <linux/delay.h>
  33 #include <linux/slab.h>
  34 #include <linux/module.h>
  35 #include <sound/core.h>
  36 #include <sound/jack.h>
  37 #include <sound/asoundef.h>
  38 #include <sound/tlv.h>
  39 #include "hda_codec.h"
  40 #include "hda_local.h"
  41 #include "hda_jack.h"
  42
  43 static bool static_hdmi_pcm;
  44 module_param(static_hdmi_pcm, bool, 0644);
  45 MODULE_PARM_DESC(static_hdmi_pcm, "Don't restrict PCM parameters per ELD info");
  46
  47 #define is_haswell(codec)  ((codec)->vendor_id == 0x80862807)
  48
  49 struct hdmi_spec_per_cvt {
  50         hda_nid_t cvt_nid;
  51         int assigned;
  52         unsigned int channels_min;
  53         unsigned int channels_max;
  54         u32 rates;
  55         u64 formats;
  56         unsigned int maxbps;
  57 };
  58
  59 /* max. connections to a widget */
  60 #define HDA_MAX_CONNECTIONS     32
  61
  62 struct hdmi_spec_per_pin {
  63         hda_nid_t pin_nid;
  64         int num_mux_nids;
  65         hda_nid_t mux_nids[HDA_MAX_CONNECTIONS];
  66
  67         struct hda_codec *codec;
  68         struct hdmi_eld sink_eld;
  69         struct delayed_work work;
  70         struct snd_kcontrol *eld_ctl;
  71         int repoll_count;
  72         bool setup; /* the stream has been set up by prepare callback */
  73         int channels; /* current number of channels */
  74         bool non_pcm;
  75         bool chmap_set;         /* channel-map override by ALSA API? */
  76         unsigned char chmap[8]; /* ALSA API channel-map */
  77         char pcm_name[8];       /* filled in build_pcm callbacks */
  78 };
  79
  80 struct hdmi_spec {
  81         int num_cvts;
  82         struct snd_array cvts; /* struct hdmi_spec_per_cvt */
  83         hda_nid_t cvt_nids[4]; /* only for haswell fix */
  84
  85         int num_pins;
  86         struct snd_array pins; /* struct hdmi_spec_per_pin */
  87         struct snd_array pcm_rec; /* struct hda_pcm */
  88         unsigned int channels_max; /* max over all cvts */
  89
  90         struct hdmi_eld temp_eld;
  91         /*
  92          * Non-generic ATI/NVIDIA specific
  93          */
  94         struct hda_multi_out multiout;
  95         struct hda_pcm_stream pcm_playback;
  96 };
  97
  98
  99 struct hdmi_audio_infoframe {
 100         u8 type; /* 0x84 */
 101         u8 ver;  /* 0x01 */
 102         u8 len;  /* 0x0a */
 103
 104         u8 checksum;
 105
 106         u8 CC02_CT47;   /* CC in bits 0:2, CT in 4:7 */
 107         u8 SS01_SF24;
 108         u8 CXT04;
 109         u8 CA;
 110         u8 LFEPBL01_LSV36_DM_INH7;
 111 };
 112
 113 struct dp_audio_infoframe {
 114         u8 type; /* 0x84 */
 115         u8 len;  /* 0x1b */
 116         u8 ver;  /* 0x11 << 2 */
 117
 118         u8 CC02_CT47;   /* match with HDMI infoframe from this on */
 119         u8 SS01_SF24;
 120         u8 CXT04;
 121         u8 CA;
 122         u8 LFEPBL01_LSV36_DM_INH7;
 123 };
 124
 125 union audio_infoframe {
 126         struct hdmi_audio_infoframe hdmi;
 127         struct dp_audio_infoframe dp;
 128         u8 bytes[0];
 129 };
 130
 131 /*
 132  * CEA speaker placement:
 133  *
 134  *        FLH       FCH        FRH
 135  *  FLW    FL  FLC   FC   FRC   FR   FRW
 136  *
 137  *                                  LFE
 138  *                     TC
 139  *
 140  *          RL  RLC   RC   RRC   RR
 141  *
 142  * The Left/Right Surround channel _notions_ LS/RS in SMPTE 320M corresponds to
 143  * CEA RL/RR; The SMPTE channel _assignment_ C/LFE is swapped to CEA LFE/FC.
 144  */
 145 enum cea_speaker_placement {
 146         FL  = (1 <<  0),        /* Front Left           */
 147         FC  = (1 <<  1),        /* Front Center         */
 148         FR  = (1 <<  2),        /* Front Right          */
 149         FLC = (1 <<  3),        /* Front Left Center    */
 150         FRC = (1 <<  4),        /* Front Right Center   */
 151         RL  = (1 <<  5),        /* Rear Left            */
 152         RC  = (1 <<  6),        /* Rear Center          */
 153         RR  = (1 <<  7),        /* Rear Right           */
 154         RLC = (1 <<  8),        /* Rear Left Center     */
 155         RRC = (1 <<  9),        /* Rear Right Center    */
 156         LFE = (1 << 10),        /* Low Frequency Effect */
 157         FLW = (1 << 11),        /* Front Left Wide      */
 158         FRW = (1 << 12),        /* Front Right Wide     */
 159         FLH = (1 << 13),        /* Front Left High      */
 160         FCH = (1 << 14),        /* Front Center High    */
 161         FRH = (1 << 15),        /* Front Right High     */
 162         TC  = (1 << 16),        /* Top Center           */
 163 };
 164
 165 /*
 166  * ELD SA bits in the CEA Speaker Allocation data block
 167  */
 168 static int eld_speaker_allocation_bits[] = {
 169         [0] = FL | FR,
 170         [1] = LFE,
 171         [2] = FC,
 172         [3] = RL | RR,
 173         [4] = RC,
 174         [5] = FLC | FRC,
 175         [6] = RLC | RRC,
 176         /* the following are not defined in ELD yet */
 177         [7] = FLW | FRW,
 178         [8] = FLH | FRH,
 179         [9] = TC,
 180         [10] = FCH,
 181 };
 182
 183 struct cea_channel_speaker_allocation {
 184         int ca_index;
 185         int speakers[8];
 186
 187         /* derived values, just for convenience */
 188         int channels;
 189         int spk_mask;
 190 };
 191
 192 /*
 193  * ALSA sequence is:
 194  *
 195  *       surround40   surround41   surround50   surround51   surround71
 196  * ch0   front left   =            =            =            =
 197  * ch1   front right  =            =            =            =
 198  * ch2   rear left    =            =            =            =
 199  * ch3   rear right   =            =            =            =
 200  * ch4                LFE          center       center       center
 201  * ch5                                          LFE          LFE
 202  * ch6                                                       side left
 203  * ch7                                                       side right
 204  *
 205  * surround71 = {FL, FR, RLC, RRC, FC, LFE, RL, RR}
 206  */
 207 static int hdmi_channel_mapping[0x32][8] = {
 208         /* stereo */
 209         [0x00] = { 0x00, 0x11, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7 },
 210         /* 2.1 */
 211         [0x01] = { 0x00, 0x11, 0x22, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7 },
 212         /* Dolby Surround */
 213         [0x02] = { 0x00, 0x11, 0x23, 0xf2, 0xf4, 0xf5, 0xf6, 0xf7 },
 214         /* surround40 */
 215         [0x08] = { 0x00, 0x11, 0x24, 0x35, 0xf3, 0xf2, 0xf6, 0xf7 },
 216         /* 4ch */
 217         [0x03] = { 0x00, 0x11, 0x23, 0x32, 0x44, 0xf5, 0xf6, 0xf7 },
 218         /* surround41 */
 219         [0x09] = { 0x00, 0x11, 0x24, 0x35, 0x42, 0xf3, 0xf6, 0xf7 },
 220         /* surround50 */
 221         [0x0a] = { 0x00, 0x11, 0x24, 0x35, 0x43, 0xf2, 0xf6, 0xf7 },
 222         /* surround51 */
 223         [0x0b] = { 0x00, 0x11, 0x24, 0x35, 0x43, 0x52, 0xf6, 0xf7 },
 224         /* 7.1 */
 225         [0x13] = { 0x00, 0x11, 0x26, 0x37, 0x43, 0x52, 0x64, 0x75 },
 226 };
 227
 228 /*
 229  * This is an ordered list!
 230  *
 231  * The preceding ones have better chances to be selected by
 232  * hdmi_channel_allocation().
 233  */
 234 static struct cea_channel_speaker_allocation channel_allocations[] = {
 235 /*                        channel:   7     6    5    4    3     2    1    0  */
 236 { .ca_index = 0x00,  .speakers = {   0,    0,   0,   0,   0,    0,  FR,  FL } },
 237                                  /* 2.1 */
 238 { .ca_index = 0x01,  .speakers = {   0,    0,   0,   0,   0,  LFE,  FR,  FL } },
 239                                  /* Dolby Surround */
 240 { .ca_index = 0x02,  .speakers = {   0,    0,   0,   0,  FC,    0,  FR,  FL } },
 241                                  /* surround40 */
 242 { .ca_index = 0x08,  .speakers = {   0,    0,  RR,  RL,   0,    0,  FR,  FL } },
 243                                  /* surround41 */
 244 { .ca_index = 0x09,  .speakers = {   0,    0,  RR,  RL,   0,  LFE,  FR,  FL } },
 245                                  /* surround50 */
 246 { .ca_index = 0x0a,  .speakers = {   0,    0,  RR,  RL,  FC,    0,  FR,  FL } },
 247                                  /* surround51 */
 248 { .ca_index = 0x0b,  .speakers = {   0,    0,  RR,  RL,  FC,  LFE,  FR,  FL } },
 249                                  /* 6.1 */
 250 { .ca_index = 0x0f,  .speakers = {   0,   RC,  RR,  RL,  FC,  LFE,  FR,  FL } },
 251                                  /* surround71 */
 252 { .ca_index = 0x13,  .speakers = { RRC,  RLC,  RR,  RL,  FC,  LFE,  FR,  FL } },
 253
 254 { .ca_index = 0x03,  .speakers = {   0,    0,   0,   0,  FC,  LFE,  FR,  FL } },
 255 { .ca_index = 0x04,  .speakers = {   0,    0,   0,  RC,   0,    0,  FR,  FL } },
 256 { .ca_index = 0x05,  .speakers = {   0,    0,   0,  RC,   0,  LFE,  FR,  FL } },
 257 { .ca_index = 0x06,  .speakers = {   0,    0,   0,  RC,  FC,    0,  FR,  FL } },
 258 { .ca_index = 0x07,  .speakers = {   0,    0,   0,  RC,  FC,  LFE,  FR,  FL } },
 259 { .ca_index = 0x0c,  .speakers = {   0,   RC,  RR,  RL,   0,    0,  FR,  FL } },
 260 { .ca_index = 0x0d,  .speakers = {   0,   RC,  RR,  RL,   0,  LFE,  FR,  FL } },
 261 { .ca_index = 0x0e,  .speakers = {   0,   RC,  RR,  RL,  FC,    0,  FR,  FL } },
 262 { .ca_index = 0x10,  .speakers = { RRC,  RLC,  RR,  RL,   0,    0,  FR,  FL } },
 263 { .ca_index = 0x11,  .speakers = { RRC,  RLC,  RR,  RL,   0,  LFE,  FR,  FL } },
 264 { .ca_index = 0x12,  .speakers = { RRC,  RLC,  RR,  RL,  FC,    0,  FR,  FL } },
 265 { .ca_index = 0x14,  .speakers = { FRC,  FLC,   0,   0,   0,    0,  FR,  FL } },
 266 { .ca_index = 0x15,  .speakers = { FRC,  FLC,   0,   0,   0,  LFE,  FR,  FL } },
 267 { .ca_index = 0x16,  .speakers = { FRC,  FLC,   0,   0,  FC,    0,  FR,  FL } },
 268 { .ca_index = 0x17,  .speakers = { FRC,  FLC,   0,   0,  FC,  LFE,  FR,  FL } },
 269 { .ca_index = 0x18,  .speakers = { FRC,  FLC,   0,  RC,   0,    0,  FR,  FL } },
 270 { .ca_index = 0x19,  .speakers = { FRC,  FLC,   0,  RC,   0,  LFE,  FR,  FL } },
 271 { .ca_index = 0x1a,  .speakers = { FRC,  FLC,   0,  RC,  FC,    0,  FR,  FL } },
 272 { .ca_index = 0x1b,  .speakers = { FRC,  FLC,   0,  RC,  FC,  LFE,  FR,  FL } },
 273 { .ca_index = 0x1c,  .speakers = { FRC,  FLC,  RR,  RL,   0,    0,  FR,  FL } },
 274 { .ca_index = 0x1d,  .speakers = { FRC,  FLC,  RR,  RL,   0,  LFE,  FR,  FL } },
 275 { .ca_index = 0x1e,  .speakers = { FRC,  FLC,  RR,  RL,  FC,    0,  FR,  FL } },
 276 { .ca_index = 0x1f,  .speakers = { FRC,  FLC,  RR,  RL,  FC,  LFE,  FR,  FL } },
 277 { .ca_index = 0x20,  .speakers = {   0,  FCH,  RR,  RL,  FC,    0,  FR,  FL } },
 278 { .ca_index = 0x21,  .speakers = {   0,  FCH,  RR,  RL,  FC,  LFE,  FR,  FL } },
 279 { .ca_index = 0x22,  .speakers = {  TC,    0,  RR,  RL,  FC,    0,  FR,  FL } },
 280 { .ca_index = 0x23,  .speakers = {  TC,    0,  RR,  RL,  FC,  LFE,  FR,  FL } },
 281 { .ca_index = 0x24,  .speakers = { FRH,  FLH,  RR,  RL,   0,    0,  FR,  FL } },
 282 { .ca_index = 0x25,  .speakers = { FRH,  FLH,  RR,  RL,   0,  LFE,  FR,  FL } },
 283 { .ca_index = 0x26,  .speakers = { FRW,  FLW,  RR,  RL,   0,    0,  FR,  FL } },
 284 { .ca_index = 0x27,  .speakers = { FRW,  FLW,  RR,  RL,   0,  LFE,  FR,  FL } },
 285 { .ca_index = 0x28,  .speakers = {  TC,   RC,  RR,  RL,  FC,    0,  FR,  FL } },
 286 { .ca_index = 0x29,  .speakers = {  TC,   RC,  RR,  RL,  FC,  LFE,  FR,  FL } },
 287 { .ca_index = 0x2a,  .speakers = { FCH,   RC,  RR,  RL,  FC,    0,  FR,  FL } },
 288 { .ca_index = 0x2b,  .speakers = { FCH,   RC,  RR,  RL,  FC,  LFE,  FR,  FL } },
 289 { .ca_index = 0x2c,  .speakers = {  TC,  FCH,  RR,  RL,  FC,    0,  FR,  FL } },
 290 { .ca_index = 0x2d,  .speakers = {  TC,  FCH,  RR,  RL,  FC,  LFE,  FR,  FL } },
 291 { .ca_index = 0x2e,  .speakers = { FRH,  FLH,  RR,  RL,  FC,    0,  FR,  FL } },
 292 { .ca_index = 0x2f,  .speakers = { FRH,  FLH,  RR,  RL,  FC,  LFE,  FR,  FL } },
 293 { .ca_index = 0x30,  .speakers = { FRW,  FLW,  RR,  RL,  FC,    0,  FR,  FL } },
 294 { .ca_index = 0x31,  .speakers = { FRW,  FLW,  RR,  RL,  FC,  LFE,  FR,  FL } },
 295 };
 296
 297
 298 /*
 299  * HDMI routines
 300  */
 301
 302 #define get_pin(spec, idx) \
 303         ((struct hdmi_spec_per_pin *)snd_array_elem(&spec->pins, idx))
 304 #define get_cvt(spec, idx) \
 305         ((struct hdmi_spec_per_cvt  *)snd_array_elem(&spec->cvts, idx))
 306 #define get_pcm_rec(spec, idx) \
 307         ((struct hda_pcm *)snd_array_elem(&spec->pcm_rec, idx))
 308
 309 static int pin_nid_to_pin_index(struct hdmi_spec *spec, hda_nid_t pin_nid)
 310 {
 311         int pin_idx;
 312
 313         for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++)
 314                 if (get_pin(spec, pin_idx)->pin_nid == pin_nid)
 315                         return pin_idx;
 316
 317         snd_printk(KERN_WARNING "HDMI: pin nid %d not registered\n", pin_nid);
 318         return -EINVAL;
 319 }
 320
 321 static int hinfo_to_pin_index(struct hdmi_spec *spec,
 322                               struct hda_pcm_stream *hinfo)
 323 {
 324         int pin_idx;
 325
 326         for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++)
 327                 if (get_pcm_rec(spec, pin_idx)->stream == hinfo)
 328                         return pin_idx;
 329
 330         snd_printk(KERN_WARNING "HDMI: hinfo %p not registered\n", hinfo);
 331         return -EINVAL;
 332 }
 333
 334 static int cvt_nid_to_cvt_index(struct hdmi_spec *spec, hda_nid_t cvt_nid)
 335 {
 336         int cvt_idx;
 337
 338         for (cvt_idx = 0; cvt_idx < spec->num_cvts; cvt_idx++)
 339                 if (get_cvt(spec, cvt_idx)->cvt_nid == cvt_nid)
 340                         return cvt_idx;
 341
 342         snd_printk(KERN_WARNING "HDMI: cvt nid %d not registered\n", cvt_nid);
 343         return -EINVAL;
 344 }
 345
 346 static int hdmi_eld_ctl_info(struct snd_kcontrol *kcontrol,
 347                         struct snd_ctl_elem_info *uinfo)
 348 {
 349         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 350         struct hdmi_spec *spec = codec->spec;
 351         struct hdmi_eld *eld;
 352         int pin_idx;
 353
 354         uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
 355
 356         pin_idx = kcontrol->private_value;
 357         eld = &get_pin(spec, pin_idx)->sink_eld;
 358
 359         mutex_lock(&eld->lock);
 360         uinfo->count = eld->eld_valid ? eld->eld_size : 0;
 361         mutex_unlock(&eld->lock);
 362
 363         return 0;
 364 }
 365
 366 static int hdmi_eld_ctl_get(struct snd_kcontrol *kcontrol,
 367                         struct snd_ctl_elem_value *ucontrol)
 368 {
 369         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 370         struct hdmi_spec *spec = codec->spec;
 371         struct hdmi_eld *eld;
 372         int pin_idx;
 373
 374         pin_idx = kcontrol->private_value;
 375         eld = &get_pin(spec, pin_idx)->sink_eld;
 376
 377         mutex_lock(&eld->lock);
 378         if (eld->eld_size > ARRAY_SIZE(ucontrol->value.bytes.data)) {
 379                 mutex_unlock(&eld->lock);
 380                 snd_BUG();
 381                 return -EINVAL;
 382         }
 383
 384         memset(ucontrol->value.bytes.data, 0,
 385                ARRAY_SIZE(ucontrol->value.bytes.data));
 386         if (eld->eld_valid)
 387                 memcpy(ucontrol->value.bytes.data, eld->eld_buffer,
 388                        eld->eld_size);
 389         mutex_unlock(&eld->lock);
 390
 391         return 0;
 392 }
 393
 394 static struct snd_kcontrol_new eld_bytes_ctl = {
 395         .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
 396         .iface = SNDRV_CTL_ELEM_IFACE_PCM,
 397         .name = "ELD",
 398         .info = hdmi_eld_ctl_info,
 399         .get = hdmi_eld_ctl_get,
 400 };
 401
 402 static int hdmi_create_eld_ctl(struct hda_codec *codec, int pin_idx,
 403                         int device)
 404 {
 405         struct snd_kcontrol *kctl;
 406         struct hdmi_spec *spec = codec->spec;
 407         int err;
 408
 409         kctl = snd_ctl_new1(&eld_bytes_ctl, codec);
 410         if (!kctl)
 411                 return -ENOMEM;
 412         kctl->private_value = pin_idx;
 413         kctl->id.device = device;
 414
 415         err = snd_hda_ctl_add(codec, get_pin(spec, pin_idx)->pin_nid, kctl);
 416         if (err < 0)
 417                 return err;
 418
 419         get_pin(spec, pin_idx)->eld_ctl = kctl;
 420         return 0;
 421 }
 422
 423 #ifdef BE_PARANOID
 424 static void hdmi_get_dip_index(struct hda_codec *codec, hda_nid_t pin_nid,
 425                                 int *packet_index, int *byte_index)
 426 {
 427         int val;
 428
 429         val = snd_hda_codec_read(codec, pin_nid, 0,
 430                                  AC_VERB_GET_HDMI_DIP_INDEX, 0);
 431
 432         *packet_index = val >> 5;
 433         *byte_index = val & 0x1f;
 434 }
 435 #endif
 436
 437 static void hdmi_set_dip_index(struct hda_codec *codec, hda_nid_t pin_nid,
 438                                 int packet_index, int byte_index)
 439 {
 440         int val;
 441
 442         val = (packet_index << 5) | (byte_index & 0x1f);
 443
 444         snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_INDEX, val);
 445 }
 446
 447 static void hdmi_write_dip_byte(struct hda_codec *codec, hda_nid_t pin_nid,
 448                                 unsigned char val)
 449 {
 450         snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_DATA, val);
 451 }
 452
 453 static void hdmi_init_pin(struct hda_codec *codec, hda_nid_t pin_nid)
 454 {
 455         /* Unmute */
 456         if (get_wcaps(codec, pin_nid) & AC_WCAP_OUT_AMP)
 457                 snd_hda_codec_write(codec, pin_nid, 0,
 458                                 AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE);
 459         /* Enable pin out: some machines with GM965 gets broken output when
 460          * the pin is disabled or changed while using with HDMI
 461          */
 462         snd_hda_codec_write(codec, pin_nid, 0,
 463                             AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT);
 464 }
 465
 466 static int hdmi_get_channel_count(struct hda_codec *codec, hda_nid_t cvt_nid)
 467 {
 468         return 1 + snd_hda_codec_read(codec, cvt_nid, 0,
 469                                         AC_VERB_GET_CVT_CHAN_COUNT, 0);
 470 }
 471
 472 static void hdmi_set_channel_count(struct hda_codec *codec,
 473                                    hda_nid_t cvt_nid, int chs)
 474 {
 475         if (chs != hdmi_get_channel_count(codec, cvt_nid))
 476                 snd_hda_codec_write(codec, cvt_nid, 0,
 477                                     AC_VERB_SET_CVT_CHAN_COUNT, chs - 1);
 478 }
 479
 480
 481 /*
 482  * Channel mapping routines
 483  */
 484
 485 /*
 486  * Compute derived values in channel_allocations[].
 487  */
 488 static void init_channel_allocations(void)
 489 {
 490         int i, j;
 491         struct cea_channel_speaker_allocation *p;
 492
 493         for (i = 0; i < ARRAY_SIZE(channel_allocations); i++) {
 494                 p = channel_allocations + i;
 495                 p->channels = 0;
 496                 p->spk_mask = 0;
 497                 for (j = 0; j < ARRAY_SIZE(p->speakers); j++)
 498                         if (p->speakers[j]) {
 499                                 p->channels++;
 500                                 p->spk_mask |= p->speakers[j];
 501                         }
 502         }
 503 }
 504
 505 static int get_channel_allocation_order(int ca)
 506 {
 507         int i;
 508
 509         for (i = 0; i < ARRAY_SIZE(channel_allocations); i++) {
 510                 if (channel_allocations[i].ca_index == ca)
 511                         break;
 512         }
 513         return i;
 514 }
 515
 516 /*
 517  * The transformation takes two steps:
 518  *
 519  *      eld->spk_alloc => (eld_speaker_allocation_bits[]) => spk_mask
 520  *            spk_mask => (channel_allocations[])         => ai->CA
 521  *
 522  * TODO: it could select the wrong CA from multiple candidates.
 523 */
 524 static int hdmi_channel_allocation(struct hdmi_eld *eld, int channels)
 525 {
 526         int i;
 527         int ca = 0;
 528         int spk_mask = 0;
 529         char buf[SND_PRINT_CHANNEL_ALLOCATION_ADVISED_BUFSIZE];
 530
 531         /*
 532          * CA defaults to 0 for basic stereo audio
 533          */
 534         if (channels <= 2)
 535                 return 0;
 536
 537         /*
 538          * expand ELD's speaker allocation mask
 539          *
 540          * ELD tells the speaker mask in a compact(paired) form,
 541          * expand ELD's notions to match the ones used by Audio InfoFrame.
 542          */
 543         for (i = 0; i < ARRAY_SIZE(eld_speaker_allocation_bits); i++) {
 544                 if (eld->info.spk_alloc & (1 << i))
 545                         spk_mask |= eld_speaker_allocation_bits[i];
 546         }
 547
 548         /* search for the first working match in the CA table */
 549         for (i = 0; i < ARRAY_SIZE(channel_allocations); i++) {
 550                 if (channels == channel_allocations[i].channels &&
 551                     (spk_mask & channel_allocations[i].spk_mask) ==
 552                                 channel_allocations[i].spk_mask) {
 553                         ca = channel_allocations[i].ca_index;
 554                         break;
 555                 }
 556         }
 557
 558         if (!ca) {
 559                 /* if there was no match, select the regular ALSA channel
 560                  * allocation with the matching number of channels */
 561                 for (i = 0; i < ARRAY_SIZE(channel_allocations); i++) {
 562                         if (channels == channel_allocations[i].channels) {
 563                                 ca = channel_allocations[i].ca_index;
 564                                 break;
 565                         }
 566                 }
 567         }
 568
 569         snd_print_channel_allocation(eld->info.spk_alloc, buf, sizeof(buf));
 570         snd_printdd("HDMI: select CA 0x%x for %d-channel allocation: %s\n",
 571                     ca, channels, buf);
 572
 573         return ca;
 574 }
 575
 576 static void hdmi_debug_channel_mapping(struct hda_codec *codec,
 577                                        hda_nid_t pin_nid)
 578 {
 579 #ifdef CONFIG_SND_DEBUG_VERBOSE
 580         int i;
 581         int slot;
 582
 583         for (i = 0; i < 8; i++) {
 584                 slot = snd_hda_codec_read(codec, pin_nid, 0,
 585                                                 AC_VERB_GET_HDMI_CHAN_SLOT, i);
 586                 printk(KERN_DEBUG "HDMI: ASP channel %d => slot %d\n",
 587                                                 slot >> 4, slot & 0xf);
 588         }
 589 #endif
 590 }
 591
 592
 593 static void hdmi_std_setup_channel_mapping(struct hda_codec *codec,
 594                                        hda_nid_t pin_nid,
 595                                        bool non_pcm,
 596                                        int ca)
 597 {
 598         int i;
 599         int err;
 600         int order;
 601         int non_pcm_mapping[8];
 602
 603         order = get_channel_allocation_order(ca);
 604
 605         if (hdmi_channel_mapping[ca][1] == 0) {
 606                 for (i = 0; i < channel_allocations[order].channels; i++)
 607                         hdmi_channel_mapping[ca][i] = i | (i << 4);
 608                 for (; i < 8; i++)
 609                         hdmi_channel_mapping[ca][i] = 0xf | (i << 4);
 610         }
 611
 612         if (non_pcm) {
 613                 for (i = 0; i < channel_allocations[order].channels; i++)
 614                         non_pcm_mapping[i] = i | (i << 4);
 615                 for (; i < 8; i++)
 616                         non_pcm_mapping[i] = 0xf | (i << 4);
 617         }
 618
 619         for (i = 0; i < 8; i++) {
 620                 err = snd_hda_codec_write(codec, pin_nid, 0,
 621                                           AC_VERB_SET_HDMI_CHAN_SLOT,
 622                                           non_pcm ? non_pcm_mapping[i] : hdmi_channel_mapping[ca][i]);
 623                 if (err) {
 624                         snd_printdd(KERN_NOTICE
 625                                     "HDMI: channel mapping failed\n");
 626                         break;
 627                 }
 628         }
 629
 630         hdmi_debug_channel_mapping(codec, pin_nid);
 631 }
 632
 633 struct channel_map_table {
 634         unsigned char map;              /* ALSA API channel map position */
 635         unsigned char cea_slot;         /* CEA slot value */
 636         int spk_mask;                   /* speaker position bit mask */
 637 };
 638
 639 static struct channel_map_table map_tables[] = {
 640         { SNDRV_CHMAP_FL,       0x00,   FL },
 641         { SNDRV_CHMAP_FR,       0x01,   FR },
 642         { SNDRV_CHMAP_RL,       0x04,   RL },
 643         { SNDRV_CHMAP_RR,       0x05,   RR },
 644         { SNDRV_CHMAP_LFE,      0x02,   LFE },
 645         { SNDRV_CHMAP_FC,       0x03,   FC },
 646         { SNDRV_CHMAP_RLC,      0x06,   RLC },
 647         { SNDRV_CHMAP_RRC,      0x07,   RRC },
 648         {} /* terminator */
 649 };
 650
 651 /* from ALSA API channel position to speaker bit mask */
 652 static int to_spk_mask(unsigned char c)
 653 {
 654         struct channel_map_table *t = map_tables;
 655         for (; t->map; t++) {
 656                 if (t->map == c)
 657                         return t->spk_mask;
 658         }
 659         return 0;
 660 }
 661
 662 /* from ALSA API channel position to CEA slot */
 663 static int to_cea_slot(unsigned char c)
 664 {
 665         struct channel_map_table *t = map_tables;
 666         for (; t->map; t++) {
 667                 if (t->map == c)
 668                         return t->cea_slot;
 669         }
 670         return 0x0f;
 671 }
 672
 673 /* from CEA slot to ALSA API channel position */
 674 static int from_cea_slot(unsigned char c)
 675 {
 676         struct channel_map_table *t = map_tables;
 677         for (; t->map; t++) {
 678                 if (t->cea_slot == c)
 679                         return t->map;
 680         }
 681         return 0;
 682 }
 683
 684 /* from speaker bit mask to ALSA API channel position */
 685 static int spk_to_chmap(int spk)
 686 {
 687         struct channel_map_table *t = map_tables;
 688         for (; t->map; t++) {
 689                 if (t->spk_mask == spk)
 690                         return t->map;
 691         }
 692         return 0;
 693 }
 694
 695 /* get the CA index corresponding to the given ALSA API channel map */
 696 static int hdmi_manual_channel_allocation(int chs, unsigned char *map)
 697 {
 698         int i, spks = 0, spk_mask = 0;
 699
 700         for (i = 0; i < chs; i++) {
 701                 int mask = to_spk_mask(map[i]);
 702                 if (mask) {
 703                         spk_mask |= mask;
 704                         spks++;
 705                 }
 706         }
 707
 708         for (i = 0; i < ARRAY_SIZE(channel_allocations); i++) {
 709                 if ((chs == channel_allocations[i].channels ||
 710                      spks == channel_allocations[i].channels) &&
 711                     (spk_mask & channel_allocations[i].spk_mask) ==
 712                                 channel_allocations[i].spk_mask)
 713                         return channel_allocations[i].ca_index;
 714         }
 715         return -1;
 716 }
 717
 718 /* set up the channel slots for the given ALSA API channel map */
 719 static int hdmi_manual_setup_channel_mapping(struct hda_codec *codec,
 720                                              hda_nid_t pin_nid,
 721                                              int chs, unsigned char *map)
 722 {
 723         int i;
 724         for (i = 0; i < 8; i++) {
 725                 int val, err;
 726                 if (i < chs)
 727                         val = to_cea_slot(map[i]);
 728                 else
 729                         val = 0xf;
 730                 val |= (i << 4);
 731                 err = snd_hda_codec_write(codec, pin_nid, 0,
 732                                           AC_VERB_SET_HDMI_CHAN_SLOT, val);
 733                 if (err)
 734                         return -EINVAL;
 735         }
 736         return 0;
 737 }
 738
 739 /* store ALSA API channel map from the current default map */
 740 static void hdmi_setup_fake_chmap(unsigned char *map, int ca)
 741 {
 742         int i;
 743         for (i = 0; i < 8; i++) {
 744                 if (i < channel_allocations[ca].channels)
 745                         map[i] = from_cea_slot((hdmi_channel_mapping[ca][i] >> 4) & 0x0f);
 746                 else
 747                         map[i] = 0;
 748         }
 749 }
 750
 751 static void hdmi_setup_channel_mapping(struct hda_codec *codec,
 752                                        hda_nid_t pin_nid, bool non_pcm, int ca,
 753                                        int channels, unsigned char *map,
 754                                        bool chmap_set)
 755 {
 756         if (!non_pcm && chmap_set) {
 757                 hdmi_manual_setup_channel_mapping(codec, pin_nid,
 758                                                   channels, map);
 759         } else {
 760                 hdmi_std_setup_channel_mapping(codec, pin_nid, non_pcm, ca);
 761                 hdmi_setup_fake_chmap(map, ca);
 762         }
 763 }
 764
 765 /*
 766  * Audio InfoFrame routines
 767  */
 768
 769 /*
 770  * Enable Audio InfoFrame Transmission
 771  */
 772 static void hdmi_start_infoframe_trans(struct hda_codec *codec,
 773                                        hda_nid_t pin_nid)
 774 {
 775         hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
 776         snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_XMIT,
 777                                                 AC_DIPXMIT_BEST);
 778 }
 779
 780 /*
 781  * Disable Audio InfoFrame Transmission
 782  */
 783 static void hdmi_stop_infoframe_trans(struct hda_codec *codec,
 784                                       hda_nid_t pin_nid)
 785 {
 786         hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
 787         snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_XMIT,
 788                                                 AC_DIPXMIT_DISABLE);
 789 }
 790
 791 static void hdmi_debug_dip_size(struct hda_codec *codec, hda_nid_t pin_nid)
 792 {
 793 #ifdef CONFIG_SND_DEBUG_VERBOSE
 794         int i;
 795         int size;
 796
 797         size = snd_hdmi_get_eld_size(codec, pin_nid);
 798         printk(KERN_DEBUG "HDMI: ELD buf size is %d\n", size);
 799
 800         for (i = 0; i < 8; i++) {
 801                 size = snd_hda_codec_read(codec, pin_nid, 0,
 802                                                 AC_VERB_GET_HDMI_DIP_SIZE, i);
 803                 printk(KERN_DEBUG "HDMI: DIP GP[%d] buf size is %d\n", i, size);
 804         }
 805 #endif
 806 }
 807
 808 static void hdmi_clear_dip_buffers(struct hda_codec *codec, hda_nid_t pin_nid)
 809 {
 810 #ifdef BE_PARANOID
 811         int i, j;
 812         int size;
 813         int pi, bi;
 814         for (i = 0; i < 8; i++) {
 815                 size = snd_hda_codec_read(codec, pin_nid, 0,
 816                                                 AC_VERB_GET_HDMI_DIP_SIZE, i);
 817                 if (size == 0)
 818                         continue;
 819
 820                 hdmi_set_dip_index(codec, pin_nid, i, 0x0);
 821                 for (j = 1; j < 1000; j++) {
 822                         hdmi_write_dip_byte(codec, pin_nid, 0x0);
 823                         hdmi_get_dip_index(codec, pin_nid, &pi, &bi);
 824                         if (pi != i)
 825                                 snd_printd(KERN_INFO "dip index %d: %d != %d\n",
 826                                                 bi, pi, i);
 827                         if (bi == 0) /* byte index wrapped around */
 828                                 break;
 829                 }
 830                 snd_printd(KERN_INFO
 831                         "HDMI: DIP GP[%d] buf reported size=%d, written=%d\n",
 832                         i, size, j);
 833         }
 834 #endif
 835 }
 836
 837 static void hdmi_checksum_audio_infoframe(struct hdmi_audio_infoframe *hdmi_ai)
 838 {
 839         u8 *bytes = (u8 *)hdmi_ai;
 840         u8 sum = 0;
 841         int i;
 842
 843         hdmi_ai->checksum = 0;
 844
 845         for (i = 0; i < sizeof(*hdmi_ai); i++)
 846                 sum += bytes[i];
 847
 848         hdmi_ai->checksum = -sum;
 849 }
 850
 851 static void hdmi_fill_audio_infoframe(struct hda_codec *codec,
 852                                       hda_nid_t pin_nid,
 853                                       u8 *dip, int size)
 854 {
 855         int i;
 856
 857         hdmi_debug_dip_size(codec, pin_nid);
 858         hdmi_clear_dip_buffers(codec, pin_nid); /* be paranoid */
 859
 860         hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
 861         for (i = 0; i < size; i++)
 862                 hdmi_write_dip_byte(codec, pin_nid, dip[i]);
 863 }
 864
 865 static bool hdmi_infoframe_uptodate(struct hda_codec *codec, hda_nid_t pin_nid,
 866                                     u8 *dip, int size)
 867 {
 868         u8 val;
 869         int i;
 870
 871         if (snd_hda_codec_read(codec, pin_nid, 0, AC_VERB_GET_HDMI_DIP_XMIT, 0)
 872                                                             != AC_DIPXMIT_BEST)
 873                 return false;
 874
 875         hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
 876         for (i = 0; i < size; i++) {
 877                 val = snd_hda_codec_read(codec, pin_nid, 0,
 878                                          AC_VERB_GET_HDMI_DIP_DATA, 0);
 879                 if (val != dip[i])
 880                         return false;
 881         }
 882
 883         return true;
 884 }
 885
 886 static void hdmi_setup_audio_infoframe(struct hda_codec *codec,
 887                                        struct hdmi_spec_per_pin *per_pin,
 888                                        bool non_pcm)
 889 {
 890         hda_nid_t pin_nid = per_pin->pin_nid;
 891         int channels = per_pin->channels;
 892         struct hdmi_eld *eld;
 893         int ca;
 894         union audio_infoframe ai;
 895
 896         if (!channels)
 897                 return;
 898
 899         if (is_haswell(codec))
 900                 snd_hda_codec_write(codec, pin_nid, 0,
 901                                             AC_VERB_SET_AMP_GAIN_MUTE,
 902                                             AMP_OUT_UNMUTE);
 903
 904         eld = &per_pin->sink_eld;
 905         if (!eld->monitor_present)
 906                 return;
 907
 908         if (!non_pcm && per_pin->chmap_set)
 909                 ca = hdmi_manual_channel_allocation(channels, per_pin->chmap);
 910         else
 911                 ca = hdmi_channel_allocation(eld, channels);
 912         if (ca < 0)
 913                 ca = 0;
 914
 915         memset(&ai, 0, sizeof(ai));
 916         if (eld->info.conn_type == 0) { /* HDMI */
 917                 struct hdmi_audio_infoframe *hdmi_ai = &ai.hdmi;
 918
 919                 hdmi_ai->type           = 0x84;
 920                 hdmi_ai->ver            = 0x01;
 921                 hdmi_ai->len            = 0x0a;
 922                 hdmi_ai->CC02_CT47      = channels - 1;
 923                 hdmi_ai->CA             = ca;
 924                 hdmi_checksum_audio_infoframe(hdmi_ai);
 925         } else if (eld->info.conn_type == 1) { /* DisplayPort */
 926                 struct dp_audio_infoframe *dp_ai = &ai.dp;
 927
 928                 dp_ai->type             = 0x84;
 929                 dp_ai->len              = 0x1b;
 930                 dp_ai->ver              = 0x11 << 2;
 931                 dp_ai->CC02_CT47        = channels - 1;
 932                 dp_ai->CA               = ca;
 933         } else {
 934                 snd_printd("HDMI: unknown connection type at pin %d\n",
 935                             pin_nid);
 936                 return;
 937         }
 938
 939         /*
 940          * sizeof(ai) is used instead of sizeof(*hdmi_ai) or
 941          * sizeof(*dp_ai) to avoid partial match/update problems when
 942          * the user switches between HDMI/DP monitors.
 943          */
 944         if (!hdmi_infoframe_uptodate(codec, pin_nid, ai.bytes,
 945                                         sizeof(ai))) {
 946                 snd_printdd("hdmi_setup_audio_infoframe: "
 947                             "pin=%d channels=%d\n",
 948                             pin_nid,
 949                             channels);
 950                 hdmi_setup_channel_mapping(codec, pin_nid, non_pcm, ca,
 951                                            channels, per_pin->chmap,
 952                                            per_pin->chmap_set);
 953                 hdmi_stop_infoframe_trans(codec, pin_nid);
 954                 hdmi_fill_audio_infoframe(codec, pin_nid,
 955                                             ai.bytes, sizeof(ai));
 956                 hdmi_start_infoframe_trans(codec, pin_nid);
 957         } else {
 958                 /* For non-pcm audio switch, setup new channel mapping
 959                  * accordingly */
 960                 if (per_pin->non_pcm != non_pcm)
 961                         hdmi_setup_channel_mapping(codec, pin_nid, non_pcm, ca,
 962                                                    channels, per_pin->chmap,
 963                                                    per_pin->chmap_set);
 964         }
 965
 966         per_pin->non_pcm = non_pcm;
 967 }
 968
 969
 970 /*
 971  * Unsolicited events
 972  */
 973
 974 static void hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll);
 975
 976 static void hdmi_intrinsic_event(struct hda_codec *codec, unsigned int res)
 977 {
 978         struct hdmi_spec *spec = codec->spec;
 979         int tag = res >> AC_UNSOL_RES_TAG_SHIFT;
 980         int pin_nid;
 981         int pin_idx;
 982         struct hda_jack_tbl *jack;
 983         int dev_entry = (res & AC_UNSOL_RES_DE) >> AC_UNSOL_RES_DE_SHIFT;
 984
 985         jack = snd_hda_jack_tbl_get_from_tag(codec, tag);
 986         if (!jack)
 987                 return;
 988         pin_nid = jack->nid;
 989         jack->jack_dirty = 1;
 990
 991         _snd_printd(SND_PR_VERBOSE,
 992                 "HDMI hot plug event: Codec=%d Pin=%d Device=%d Inactive=%d Presence_Detect=%d ELD_Valid=%d\n",
 993                 codec->addr, pin_nid, dev_entry, !!(res & AC_UNSOL_RES_IA),
 994                 !!(res & AC_UNSOL_RES_PD), !!(res & AC_UNSOL_RES_ELDV));
 995
 996         pin_idx = pin_nid_to_pin_index(spec, pin_nid);
 997         if (pin_idx < 0)
 998                 return;
 999
1000         hdmi_present_sense(get_pin(spec, pin_idx), 1);
1001         snd_hda_jack_report_sync(codec);
1002 }
1003
1004 static void hdmi_non_intrinsic_event(struct hda_codec *codec, unsigned int res)
1005 {
1006         int tag = res >> AC_UNSOL_RES_TAG_SHIFT;
1007         int subtag = (res & AC_UNSOL_RES_SUBTAG) >> AC_UNSOL_RES_SUBTAG_SHIFT;
1008         int cp_state = !!(res & AC_UNSOL_RES_CP_STATE);
1009         int cp_ready = !!(res & AC_UNSOL_RES_CP_READY);
1010
1011         printk(KERN_INFO
1012                 "HDMI CP event: CODEC=%d TAG=%d SUBTAG=0x%x CP_STATE=%d CP_READY=%d\n",
1013                 codec->addr,
1014                 tag,
1015                 subtag,
1016                 cp_state,
1017                 cp_ready);
1018
1019         /* TODO */
1020         if (cp_state)
1021                 ;
1022         if (cp_ready)
1023                 ;
1024 }
1025
1026
1027 static void hdmi_unsol_event(struct hda_codec *codec, unsigned int res)
1028 {
1029         int tag = res >> AC_UNSOL_RES_TAG_SHIFT;
1030         int subtag = (res & AC_UNSOL_RES_SUBTAG) >> AC_UNSOL_RES_SUBTAG_SHIFT;
1031
1032         if (!snd_hda_jack_tbl_get_from_tag(codec, tag)) {
1033                 snd_printd(KERN_INFO "Unexpected HDMI event tag 0x%x\n", tag);
1034                 return;
1035         }
1036
1037         if (subtag == 0)
1038                 hdmi_intrinsic_event(codec, res);
1039         else
1040                 hdmi_non_intrinsic_event(codec, res);
1041 }
1042
1043 static void haswell_verify_D0(struct hda_codec *codec,
1044                 hda_nid_t cvt_nid, hda_nid_t nid)
1045 {
1046         int pwr;
1047
1048         /* For Haswell, the converter 1/2 may keep in D3 state after bootup,
1049          * thus pins could only choose converter 0 for use. Make sure the
1050          * converters are in correct power state */
1051         if (!snd_hda_check_power_state(codec, cvt_nid, AC_PWRST_D0))
1052                 snd_hda_codec_write(codec, cvt_nid, 0, AC_VERB_SET_POWER_STATE, AC_PWRST_D0);
1053
1054         if (!snd_hda_check_power_state(codec, nid, AC_PWRST_D0)) {
1055                 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_POWER_STATE,
1056                                     AC_PWRST_D0);
1057                 msleep(40);
1058                 pwr = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_POWER_STATE, 0);
1059                 pwr = (pwr & AC_PWRST_ACTUAL) >> AC_PWRST_ACTUAL_SHIFT;
1060                 snd_printd("Haswell HDMI audio: Power for pin 0x%x is now D%d\n", nid, pwr);
1061         }
1062 }
1063
1064 /*
1065  * Callbacks
1066  */
1067
1068 /* HBR should be Non-PCM, 8 channels */
1069 #define is_hbr_format(format) \
1070         ((format & AC_FMT_TYPE_NON_PCM) && (format & AC_FMT_CHAN_MASK) == 7)
1071
1072 static int hdmi_setup_stream(struct hda_codec *codec, hda_nid_t cvt_nid,
1073                               hda_nid_t pin_nid, u32 stream_tag, int format)
1074 {
1075         int pinctl;
1076         int new_pinctl = 0;
1077
1078         if (is_haswell(codec))
1079                 haswell_verify_D0(codec, cvt_nid, pin_nid);
1080
1081         if (snd_hda_query_pin_caps(codec, pin_nid) & AC_PINCAP_HBR) {
1082                 pinctl = snd_hda_codec_read(codec, pin_nid, 0,
1083                                             AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
1084
1085                 new_pinctl = pinctl & ~AC_PINCTL_EPT;
1086                 if (is_hbr_format(format))
1087                         new_pinctl |= AC_PINCTL_EPT_HBR;
1088                 else
1089                         new_pinctl |= AC_PINCTL_EPT_NATIVE;
1090
1091                 snd_printdd("hdmi_setup_stream: "
1092                             "NID=0x%x, %spinctl=0x%x\n",
1093                             pin_nid,
1094                             pinctl == new_pinctl ? "" : "new-",
1095                             new_pinctl);
1096
1097                 if (pinctl != new_pinctl)
1098                         snd_hda_codec_write(codec, pin_nid, 0,
1099                                             AC_VERB_SET_PIN_WIDGET_CONTROL,
1100                                             new_pinctl);
1101
1102         }
1103         if (is_hbr_format(format) && !new_pinctl) {
1104                 snd_printdd("hdmi_setup_stream: HBR is not supported\n");
1105                 return -EINVAL;
1106         }
1107
1108         snd_hda_codec_setup_stream(codec, cvt_nid, stream_tag, 0, format);
1109         return 0;
1110 }
1111
1112 static int hdmi_choose_cvt(struct hda_codec *codec,
1113                         int pin_idx, int *cvt_id, int *mux_id)
1114 {
1115         struct hdmi_spec *spec = codec->spec;
1116         struct hdmi_spec_per_pin *per_pin;
1117         struct hdmi_spec_per_cvt *per_cvt = NULL;
1118         int cvt_idx, mux_idx = 0;
1119
1120         per_pin = get_pin(spec, pin_idx);
1121
1122         /* Dynamically assign converter to stream */
1123         for (cvt_idx = 0; cvt_idx < spec->num_cvts; cvt_idx++) {
1124                 per_cvt = get_cvt(spec, cvt_idx);
1125
1126                 /* Must not already be assigned */
1127                 if (per_cvt->assigned)
1128                         continue;
1129                 /* Must be in pin's mux's list of converters */
1130                 for (mux_idx = 0; mux_idx < per_pin->num_mux_nids; mux_idx++)
1131                         if (per_pin->mux_nids[mux_idx] == per_cvt->cvt_nid)
1132                                 break;
1133                 /* Not in mux list */
1134                 if (mux_idx == per_pin->num_mux_nids)
1135                         continue;
1136                 break;
1137         }
1138
1139         /* No free converters */
1140         if (cvt_idx == spec->num_cvts)
1141                 return -ENODEV;
1142
1143         if (cvt_id)
1144                 *cvt_id = cvt_idx;
1145         if (mux_id)
1146                 *mux_id = mux_idx;
1147
1148         return 0;
1149 }
1150
1151 static void haswell_config_cvts(struct hda_codec *codec,
1152                         int pin_id, int mux_id)
1153 {
1154         struct hdmi_spec *spec = codec->spec;
1155         struct hdmi_spec_per_pin *per_pin;
1156         int pin_idx, mux_idx;
1157         int curr;
1158         int err;
1159
1160         for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
1161                 per_pin = get_pin(spec, pin_idx);
1162
1163                 if (pin_idx == pin_id)
1164                         continue;
1165
1166                 curr = snd_hda_codec_read(codec, per_pin->pin_nid, 0,
1167                                           AC_VERB_GET_CONNECT_SEL, 0);
1168
1169                 /* Choose another unused converter */
1170                 if (curr == mux_id) {
1171                         err = hdmi_choose_cvt(codec, pin_idx, NULL, &mux_idx);
1172                         if (err < 0)
1173                                 return;
1174                         snd_printdd("HDMI: choose converter %d for pin %d\n", mux_idx, pin_idx);
1175                         snd_hda_codec_write_cache(codec, per_pin->pin_nid, 0,
1176                                             AC_VERB_SET_CONNECT_SEL,
1177                                             mux_idx);
1178                 }
1179         }
1180 }
1181
1182 /*
1183  * HDA PCM callbacks
1184  */
1185 static int hdmi_pcm_open(struct hda_pcm_stream *hinfo,
1186                          struct hda_codec *codec,
1187                          struct snd_pcm_substream *substream)
1188 {
1189         struct hdmi_spec *spec = codec->spec;
1190         struct snd_pcm_runtime *runtime = substream->runtime;
1191         int pin_idx, cvt_idx, mux_idx = 0;
1192         struct hdmi_spec_per_pin *per_pin;
1193         struct hdmi_eld *eld;
1194         struct hdmi_spec_per_cvt *per_cvt = NULL;
1195         int err;
1196
1197         /* Validate hinfo */
1198         pin_idx = hinfo_to_pin_index(spec, hinfo);
1199         if (snd_BUG_ON(pin_idx < 0))
1200                 return -EINVAL;
1201         per_pin = get_pin(spec, pin_idx);
1202         eld = &per_pin->sink_eld;
1203
1204         err = hdmi_choose_cvt(codec, pin_idx, &cvt_idx, &mux_idx);
1205         if (err < 0)
1206                 return err;
1207
1208         per_cvt = get_cvt(spec, cvt_idx);
1209         /* Claim converter */
1210         per_cvt->assigned = 1;
1211         hinfo->nid = per_cvt->cvt_nid;
1212
1213         snd_hda_codec_write_cache(codec, per_pin->pin_nid, 0,
1214                             AC_VERB_SET_CONNECT_SEL,
1215                             mux_idx);
1216
1217         /* configure unused pins to choose other converters */
1218         if (is_haswell(codec))
1219                 haswell_config_cvts(codec, pin_idx, mux_idx);
1220
1221         snd_hda_spdif_ctls_assign(codec, pin_idx, per_cvt->cvt_nid);
1222
1223         /* Initially set the converter's capabilities */
1224         hinfo->channels_min = per_cvt->channels_min;
1225         hinfo->channels_max = per_cvt->channels_max;
1226         hinfo->rates = per_cvt->rates;
1227         hinfo->formats = per_cvt->formats;
1228         hinfo->maxbps = per_cvt->maxbps;
1229
1230         /* Restrict capabilities by ELD if this isn't disabled */
1231         if (!static_hdmi_pcm && eld->eld_valid) {
1232                 snd_hdmi_eld_update_pcm_info(&eld->info, hinfo);
1233                 if (hinfo->channels_min > hinfo->channels_max ||
1234                     !hinfo->rates || !hinfo->formats) {
1235                         per_cvt->assigned = 0;
1236                         hinfo->nid = 0;
1237                         snd_hda_spdif_ctls_unassign(codec, pin_idx);
1238                         return -ENODEV;
1239                 }
1240         }
1241
1242         /* Store the updated parameters */
1243         runtime->hw.channels_min = hinfo->channels_min;
1244         runtime->hw.channels_max = hinfo->channels_max;
1245         runtime->hw.formats = hinfo->formats;
1246         runtime->hw.rates = hinfo->rates;
1247
1248         snd_pcm_hw_constraint_step(substream->runtime, 0,
1249                                    SNDRV_PCM_HW_PARAM_CHANNELS, 2);
1250         return 0;
1251 }
1252
1253 /*
1254  * HDA/HDMI auto parsing
1255  */
1256 static int hdmi_read_pin_conn(struct hda_codec *codec, int pin_idx)
1257 {
1258         struct hdmi_spec *spec = codec->spec;
1259         struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
1260         hda_nid_t pin_nid = per_pin->pin_nid;
1261
1262         if (!(get_wcaps(codec, pin_nid) & AC_WCAP_CONN_LIST)) {
1263                 snd_printk(KERN_WARNING
1264                            "HDMI: pin %d wcaps %#x "
1265                            "does not support connection list\n",
1266                            pin_nid, get_wcaps(codec, pin_nid));
1267                 return -EINVAL;
1268         }
1269
1270         per_pin->num_mux_nids = snd_hda_get_connections(codec, pin_nid,
1271                                                         per_pin->mux_nids,
1272                                                         HDA_MAX_CONNECTIONS);
1273
1274         return 0;
1275 }
1276
1277 static void hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll)
1278 {
1279         struct hda_codec *codec = per_pin->codec;
1280         struct hdmi_spec *spec = codec->spec;
1281         struct hdmi_eld *eld = &spec->temp_eld;
1282         struct hdmi_eld *pin_eld = &per_pin->sink_eld;
1283         hda_nid_t pin_nid = per_pin->pin_nid;
1284         /*
1285          * Always execute a GetPinSense verb here, even when called from
1286          * hdmi_intrinsic_event; for some NVIDIA HW, the unsolicited
1287          * response's PD bit is not the real PD value, but indicates that
1288          * the real PD value changed. An older version of the HD-audio
1289          * specification worked this way. Hence, we just ignore the data in
1290          * the unsolicited response to avoid custom WARs.
1291          */
1292         int present = snd_hda_pin_sense(codec, pin_nid);
1293         bool update_eld = false;
1294         bool eld_changed = false;
1295
1296         pin_eld->monitor_present = !!(present & AC_PINSENSE_PRESENCE);
1297         if (pin_eld->monitor_present)
1298                 eld->eld_valid  = !!(present & AC_PINSENSE_ELDV);
1299         else
1300                 eld->eld_valid = false;
1301
1302         _snd_printd(SND_PR_VERBOSE,
1303                 "HDMI status: Codec=%d Pin=%d Presence_Detect=%d ELD_Valid=%d\n",
1304                 codec->addr, pin_nid, pin_eld->monitor_present, eld->eld_valid);
1305
1306         if (eld->eld_valid) {
1307                 if (snd_hdmi_get_eld(codec, pin_nid, eld->eld_buffer,
1308                                                      &eld->eld_size) < 0)
1309                         eld->eld_valid = false;
1310                 else {
1311                         memset(&eld->info, 0, sizeof(struct parsed_hdmi_eld));
1312                         if (snd_hdmi_parse_eld(&eld->info, eld->eld_buffer,
1313                                                     eld->eld_size) < 0)
1314                                 eld->eld_valid = false;
1315                 }
1316
1317                 if (eld->eld_valid) {
1318                         snd_hdmi_show_eld(&eld->info);
1319                         update_eld = true;
1320                 }
1321                 else if (repoll) {
1322                         queue_delayed_work(codec->bus->workq,
1323                                            &per_pin->work,
1324                                            msecs_to_jiffies(300));
1325                         return;
1326                 }
1327         }
1328
1329         mutex_lock(&pin_eld->lock);
1330         if (pin_eld->eld_valid && !eld->eld_valid) {
1331                 update_eld = true;
1332                 eld_changed = true;
1333         }
1334         if (update_eld) {
1335                 bool old_eld_valid = pin_eld->eld_valid;
1336                 pin_eld->eld_valid = eld->eld_valid;
1337                 eld_changed = pin_eld->eld_size != eld->eld_size ||
1338                               memcmp(pin_eld->eld_buffer, eld->eld_buffer,
1339                                      eld->eld_size) != 0;
1340                 if (eld_changed)
1341                         memcpy(pin_eld->eld_buffer, eld->eld_buffer,
1342                                eld->eld_size);
1343                 pin_eld->eld_size = eld->eld_size;
1344                 pin_eld->info = eld->info;
1345
1346                 /* Haswell-specific workaround: re-setup when the transcoder is
1347                  * changed during the stream playback
1348                  */
1349                 if (is_haswell(codec) &&
1350                     eld->eld_valid && !old_eld_valid && per_pin->setup)
1351                         hdmi_setup_audio_infoframe(codec, per_pin,
1352                                                    per_pin->non_pcm);
1353         }
1354         mutex_unlock(&pin_eld->lock);
1355
1356         if (eld_changed)
1357                 snd_ctl_notify(codec->bus->card,
1358                                SNDRV_CTL_EVENT_MASK_VALUE | SNDRV_CTL_EVENT_MASK_INFO,
1359                                &per_pin->eld_ctl->id);
1360 }
1361
1362 static void hdmi_repoll_eld(struct work_struct *work)
1363 {
1364         struct hdmi_spec_per_pin *per_pin =
1365         container_of(to_delayed_work(work), struct hdmi_spec_per_pin, work);
1366
1367         if (per_pin->repoll_count++ > 6)
1368                 per_pin->repoll_count = 0;
1369
1370         hdmi_present_sense(per_pin, per_pin->repoll_count);
1371 }
1372
1373 static void intel_haswell_fixup_connect_list(struct hda_codec *codec,
1374                                              hda_nid_t nid);
1375
1376 static int hdmi_add_pin(struct hda_codec *codec, hda_nid_t pin_nid)
1377 {
1378         struct hdmi_spec *spec = codec->spec;
1379         unsigned int caps, config;
1380         int pin_idx;
1381         struct hdmi_spec_per_pin *per_pin;
1382         int err;
1383
1384         caps = snd_hda_query_pin_caps(codec, pin_nid);
1385         if (!(caps & (AC_PINCAP_HDMI | AC_PINCAP_DP)))
1386                 return 0;
1387
1388         config = snd_hda_codec_get_pincfg(codec, pin_nid);
1389         if (get_defcfg_connect(config) == AC_JACK_PORT_NONE)
1390                 return 0;
1391
1392         if (is_haswell(codec))
1393                 intel_haswell_fixup_connect_list(codec, pin_nid);
1394
1395         pin_idx = spec->num_pins;
1396         per_pin = snd_array_new(&spec->pins);
1397         if (!per_pin)
1398                 return -ENOMEM;
1399
1400         per_pin->pin_nid = pin_nid;
1401         per_pin->non_pcm = false;
1402
1403         err = hdmi_read_pin_conn(codec, pin_idx);
1404         if (err < 0)
1405                 return err;
1406
1407         spec->num_pins++;
1408
1409         return 0;
1410 }
1411
1412 static int hdmi_add_cvt(struct hda_codec *codec, hda_nid_t cvt_nid)
1413 {
1414         struct hdmi_spec *spec = codec->spec;
1415         struct hdmi_spec_per_cvt *per_cvt;
1416         unsigned int chans;
1417         int err;
1418
1419         chans = get_wcaps(codec, cvt_nid);
1420         chans = get_wcaps_channels(chans);
1421
1422         per_cvt = snd_array_new(&spec->cvts);
1423         if (!per_cvt)
1424                 return -ENOMEM;
1425
1426         per_cvt->cvt_nid = cvt_nid;
1427         per_cvt->channels_min = 2;
1428         if (chans <= 16) {
1429                 per_cvt->channels_max = chans;
1430                 if (chans > spec->channels_max)
1431                         spec->channels_max = chans;
1432         }
1433
1434         err = snd_hda_query_supported_pcm(codec, cvt_nid,
1435                                           &per_cvt->rates,
1436                                           &per_cvt->formats,
1437                                           &per_cvt->maxbps);
1438         if (err < 0)
1439                 return err;
1440
1441         if (spec->num_cvts < ARRAY_SIZE(spec->cvt_nids))
1442                 spec->cvt_nids[spec->num_cvts] = cvt_nid;
1443         spec->num_cvts++;
1444
1445         return 0;
1446 }
1447
1448 static int hdmi_parse_codec(struct hda_codec *codec)
1449 {
1450         hda_nid_t nid;
1451         int i, nodes;
1452
1453         nodes = snd_hda_get_sub_nodes(codec, codec->afg, &nid);
1454         if (!nid || nodes < 0) {
1455                 snd_printk(KERN_WARNING "HDMI: failed to get afg sub nodes\n");
1456                 return -EINVAL;
1457         }
1458
1459         for (i = 0; i < nodes; i++, nid++) {
1460                 unsigned int caps;
1461                 unsigned int type;
1462
1463                 caps = get_wcaps(codec, nid);
1464                 type = get_wcaps_type(caps);
1465
1466                 if (!(caps & AC_WCAP_DIGITAL))
1467                         continue;
1468
1469                 switch (type) {
1470                 case AC_WID_AUD_OUT:
1471                         hdmi_add_cvt(codec, nid);
1472                         break;
1473                 case AC_WID_PIN:
1474                         hdmi_add_pin(codec, nid);
1475                         break;
1476                 }
1477         }
1478
1479 #ifdef CONFIG_PM
1480         /* We're seeing some problems with unsolicited hot plug events on
1481          * PantherPoint after S3, if this is not enabled */
1482         if (codec->vendor_id == 0x80862806)
1483                 codec->bus->power_keep_link_on = 1;
1484         /*
1485          * G45/IbexPeak don't support EPSS: the unsolicited pin hot plug event
1486          * can be lost and presence sense verb will become inaccurate if the
1487          * HDA link is powered off at hot plug or hw initialization time.
1488          */
1489         else if (!(snd_hda_param_read(codec, codec->afg, AC_PAR_POWER_STATE) &
1490               AC_PWRST_EPSS))
1491                 codec->bus->power_keep_link_on = 1;
1492 #endif
1493
1494         return 0;
1495 }
1496
1497 /*
1498  */
1499 static bool check_non_pcm_per_cvt(struct hda_codec *codec, hda_nid_t cvt_nid)
1500 {
1501         struct hda_spdif_out *spdif;
1502         bool non_pcm;
1503
1504         mutex_lock(&codec->spdif_mutex);
1505         spdif = snd_hda_spdif_out_of_nid(codec, cvt_nid);
1506         non_pcm = !!(spdif->status & IEC958_AES0_NONAUDIO);
1507         mutex_unlock(&codec->spdif_mutex);
1508         return non_pcm;
1509 }
1510
1511
1512 /*
1513  * HDMI callbacks
1514  */
1515
1516 static int generic_hdmi_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
1517                                            struct hda_codec *codec,
1518                                            unsigned int stream_tag,
1519                                            unsigned int format,
1520                                            struct snd_pcm_substream *substream)
1521 {
1522         hda_nid_t cvt_nid = hinfo->nid;
1523         struct hdmi_spec *spec = codec->spec;
1524         int pin_idx = hinfo_to_pin_index(spec, hinfo);
1525         struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
1526         hda_nid_t pin_nid = per_pin->pin_nid;
1527         bool non_pcm;
1528
1529         non_pcm = check_non_pcm_per_cvt(codec, cvt_nid);
1530         per_pin->channels = substream->runtime->channels;
1531         per_pin->setup = true;
1532
1533         hdmi_set_channel_count(codec, cvt_nid, substream->runtime->channels);
1534
1535         hdmi_setup_audio_infoframe(codec, per_pin, non_pcm);
1536
1537         return hdmi_setup_stream(codec, cvt_nid, pin_nid, stream_tag, format);
1538 }
1539
1540 static int generic_hdmi_playback_pcm_cleanup(struct hda_pcm_stream *hinfo,
1541                                              struct hda_codec *codec,
1542                                              struct snd_pcm_substream *substream)
1543 {
1544         snd_hda_codec_cleanup_stream(codec, hinfo->nid);
1545         return 0;
1546 }
1547
1548 static int hdmi_pcm_close(struct hda_pcm_stream *hinfo,
1549                           struct hda_codec *codec,
1550                           struct snd_pcm_substream *substream)
1551 {
1552         struct hdmi_spec *spec = codec->spec;
1553         int cvt_idx, pin_idx;
1554         struct hdmi_spec_per_cvt *per_cvt;
1555         struct hdmi_spec_per_pin *per_pin;
1556
1557         if (hinfo->nid) {
1558                 cvt_idx = cvt_nid_to_cvt_index(spec, hinfo->nid);
1559                 if (snd_BUG_ON(cvt_idx < 0))
1560                         return -EINVAL;
1561                 per_cvt = get_cvt(spec, cvt_idx);
1562
1563                 snd_BUG_ON(!per_cvt->assigned);
1564                 per_cvt->assigned = 0;
1565                 hinfo->nid = 0;
1566
1567                 pin_idx = hinfo_to_pin_index(spec, hinfo);
1568                 if (snd_BUG_ON(pin_idx < 0))
1569                         return -EINVAL;
1570                 per_pin = get_pin(spec, pin_idx);
1571
1572                 snd_hda_spdif_ctls_unassign(codec, pin_idx);
1573                 per_pin->chmap_set = false;
1574                 memset(per_pin->chmap, 0, sizeof(per_pin->chmap));
1575
1576                 per_pin->setup = false;
1577                 per_pin->channels = 0;
1578         }
1579
1580         return 0;
1581 }
1582
1583 static const struct hda_pcm_ops generic_ops = {
1584         .open = hdmi_pcm_open,
1585         .close = hdmi_pcm_close,
1586         .prepare = generic_hdmi_playback_pcm_prepare,
1587         .cleanup = generic_hdmi_playback_pcm_cleanup,
1588 };
1589
1590 /*
1591  * ALSA API channel-map control callbacks
1592  */
1593 static int hdmi_chmap_ctl_info(struct snd_kcontrol *kcontrol,
1594                                struct snd_ctl_elem_info *uinfo)
1595 {
1596         struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
1597         struct hda_codec *codec = info->private_data;
1598         struct hdmi_spec *spec = codec->spec;
1599         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1600         uinfo->count = spec->channels_max;
1601         uinfo->value.integer.min = 0;
1602         uinfo->value.integer.max = SNDRV_CHMAP_LAST;
1603         return 0;
1604 }
1605
1606 static int hdmi_chmap_ctl_tlv(struct snd_kcontrol *kcontrol, int op_flag,
1607                               unsigned int size, unsigned int __user *tlv)
1608 {
1609         struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
1610         struct hda_codec *codec = info->private_data;
1611         struct hdmi_spec *spec = codec->spec;
1612         const unsigned int valid_mask =
1613                 FL | FR | RL | RR | LFE | FC | RLC | RRC;
1614         unsigned int __user *dst;
1615         int chs, count = 0;
1616
1617         if (size < 8)
1618                 return -ENOMEM;
1619         if (put_user(SNDRV_CTL_TLVT_CONTAINER, tlv))
1620                 return -EFAULT;
1621         size -= 8;
1622         dst = tlv + 2;
1623         for (chs = 2; chs <= spec->channels_max; chs++) {
1624                 int i, c;
1625                 struct cea_channel_speaker_allocation *cap;
1626                 cap = channel_allocations;
1627                 for (i = 0; i < ARRAY_SIZE(channel_allocations); i++, cap++) {
1628                         int chs_bytes = chs * 4;
1629                         if (cap->channels != chs)
1630                                 continue;
1631                         if (cap->spk_mask & ~valid_mask)
1632                                 continue;
1633                         if (size < 8)
1634                                 return -ENOMEM;
1635                         if (put_user(SNDRV_CTL_TLVT_CHMAP_VAR, dst) ||
1636                             put_user(chs_bytes, dst + 1))
1637                                 return -EFAULT;
1638                         dst += 2;
1639                         size -= 8;
1640                         count += 8;
1641                         if (size < chs_bytes)
1642                                 return -ENOMEM;
1643                         size -= chs_bytes;
1644                         count += chs_bytes;
1645                         for (c = 7; c >= 0; c--) {
1646                                 int spk = cap->speakers[c];
1647                                 if (!spk)
1648                                         continue;
1649                                 if (put_user(spk_to_chmap(spk), dst))
1650                                         return -EFAULT;
1651                                 dst++;
1652                         }
1653                 }
1654         }
1655         if (put_user(count, tlv + 1))
1656                 return -EFAULT;
1657         return 0;
1658 }
1659
1660 static int hdmi_chmap_ctl_get(struct snd_kcontrol *kcontrol,
1661                               struct snd_ctl_elem_value *ucontrol)
1662 {
1663         struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
1664         struct hda_codec *codec = info->private_data;
1665         struct hdmi_spec *spec = codec->spec;
1666         int pin_idx = kcontrol->private_value;
1667         struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
1668         int i;
1669
1670         for (i = 0; i < ARRAY_SIZE(per_pin->chmap); i++)
1671                 ucontrol->value.integer.value[i] = per_pin->chmap[i];
1672         return 0;
1673 }
1674
1675 static int hdmi_chmap_ctl_put(struct snd_kcontrol *kcontrol,
1676                               struct snd_ctl_elem_value *ucontrol)
1677 {
1678         struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
1679         struct hda_codec *codec = info->private_data;
1680         struct hdmi_spec *spec = codec->spec;
1681         int pin_idx = kcontrol->private_value;
1682         struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
1683         unsigned int ctl_idx;
1684         struct snd_pcm_substream *substream;
1685         unsigned char chmap[8];
1686         int i, ca, prepared = 0;
1687
1688         ctl_idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
1689         substream = snd_pcm_chmap_substream(info, ctl_idx);
1690         if (!substream || !substream->runtime)
1691                 return 0; /* just for avoiding error from alsactl restore */
1692         switch (substream->runtime->status->state) {
1693         case SNDRV_PCM_STATE_OPEN:
1694         case SNDRV_PCM_STATE_SETUP:
1695                 break;
1696         case SNDRV_PCM_STATE_PREPARED:
1697                 prepared = 1;
1698                 break;
1699         default:
1700                 return -EBUSY;
1701         }
1702         memset(chmap, 0, sizeof(chmap));
1703         for (i = 0; i < ARRAY_SIZE(chmap); i++)
1704                 chmap[i] = ucontrol->value.integer.value[i];
1705         if (!memcmp(chmap, per_pin->chmap, sizeof(chmap)))
1706                 return 0;
1707         ca = hdmi_manual_channel_allocation(ARRAY_SIZE(chmap), chmap);
1708         if (ca < 0)
1709                 return -EINVAL;
1710         per_pin->chmap_set = true;
1711         memcpy(per_pin->chmap, chmap, sizeof(chmap));
1712         if (prepared)
1713                 hdmi_setup_audio_infoframe(codec, per_pin, per_pin->non_pcm);
1714
1715         return 0;
1716 }
1717
1718 static int generic_hdmi_build_pcms(struct hda_codec *codec)
1719 {
1720         struct hdmi_spec *spec = codec->spec;
1721         int pin_idx;
1722
1723         for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
1724                 struct hda_pcm *info;
1725                 struct hda_pcm_stream *pstr;
1726                 struct hdmi_spec_per_pin *per_pin;
1727
1728                 per_pin = get_pin(spec, pin_idx);
1729                 sprintf(per_pin->pcm_name, "HDMI %d", pin_idx);
1730                 info = snd_array_new(&spec->pcm_rec);
1731                 if (!info)
1732                         return -ENOMEM;
1733                 info->name = per_pin->pcm_name;
1734                 info->pcm_type = HDA_PCM_TYPE_HDMI;
1735                 info->own_chmap = true;
1736
1737                 pstr = &info->stream[SNDRV_PCM_STREAM_PLAYBACK];
1738                 pstr->substreams = 1;
1739                 pstr->ops = generic_ops;
1740                 /* other pstr fields are set in open */
1741         }
1742
1743         codec->num_pcms = spec->num_pins;
1744         codec->pcm_info = spec->pcm_rec.list;
1745
1746         return 0;
1747 }
1748
1749 static int generic_hdmi_build_jack(struct hda_codec *codec, int pin_idx)
1750 {
1751         char hdmi_str[32] = "HDMI/DP";
1752         struct hdmi_spec *spec = codec->spec;
1753         struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
1754         int pcmdev = get_pcm_rec(spec, pin_idx)->device;
1755
1756         if (pcmdev > 0)
1757                 sprintf(hdmi_str + strlen(hdmi_str), ",pcm=%d", pcmdev);
1758         if (!is_jack_detectable(codec, per_pin->pin_nid))
1759                 strncat(hdmi_str, " Phantom",
1760                         sizeof(hdmi_str) - strlen(hdmi_str) - 1);
1761
1762         return snd_hda_jack_add_kctl(codec, per_pin->pin_nid, hdmi_str, 0);
1763 }
1764
1765 static int generic_hdmi_build_controls(struct hda_codec *codec)
1766 {
1767         struct hdmi_spec *spec = codec->spec;
1768         int err;
1769         int pin_idx;
1770
1771         for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
1772                 struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
1773
1774                 err = generic_hdmi_build_jack(codec, pin_idx);
1775                 if (err < 0)
1776                         return err;
1777
1778                 err = snd_hda_create_dig_out_ctls(codec,
1779                                                   per_pin->pin_nid,
1780                                                   per_pin->mux_nids[0],
1781                                                   HDA_PCM_TYPE_HDMI);
1782                 if (err < 0)
1783                         return err;
1784                 snd_hda_spdif_ctls_unassign(codec, pin_idx);
1785
1786                 /* add control for ELD Bytes */
1787                 err = hdmi_create_eld_ctl(codec, pin_idx,
1788                                           get_pcm_rec(spec, pin_idx)->device);
1789
1790                 if (err < 0)
1791                         return err;
1792
1793                 hdmi_present_sense(per_pin, 0);
1794         }
1795
1796         /* add channel maps */
1797         for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
1798                 struct snd_pcm_chmap *chmap;
1799                 struct snd_kcontrol *kctl;
1800                 int i;
1801                 err = snd_pcm_add_chmap_ctls(codec->pcm_info[pin_idx].pcm,
1802                                              SNDRV_PCM_STREAM_PLAYBACK,
1803                                              NULL, 0, pin_idx, &chmap);
1804                 if (err < 0)
1805                         return err;
1806                 /* override handlers */
1807                 chmap->private_data = codec;
1808                 kctl = chmap->kctl;
1809                 for (i = 0; i < kctl->count; i++)
1810                         kctl->vd[i].access |= SNDRV_CTL_ELEM_ACCESS_WRITE;
1811                 kctl->info = hdmi_chmap_ctl_info;
1812                 kctl->get = hdmi_chmap_ctl_get;
1813                 kctl->put = hdmi_chmap_ctl_put;
1814                 kctl->tlv.c = hdmi_chmap_ctl_tlv;
1815         }
1816
1817         return 0;
1818 }
1819
1820 static int generic_hdmi_init_per_pins(struct hda_codec *codec)
1821 {
1822         struct hdmi_spec *spec = codec->spec;
1823         int pin_idx;
1824
1825         for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
1826                 struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
1827                 struct hdmi_eld *eld = &per_pin->sink_eld;
1828
1829                 per_pin->codec = codec;
1830                 mutex_init(&eld->lock);
1831                 INIT_DELAYED_WORK(&per_pin->work, hdmi_repoll_eld);
1832                 snd_hda_eld_proc_new(codec, eld, pin_idx);
1833         }
1834         return 0;
1835 }
1836
1837 static int generic_hdmi_init(struct hda_codec *codec)
1838 {
1839         struct hdmi_spec *spec = codec->spec;
1840         int pin_idx;
1841
1842         for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
1843                 struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
1844                 hda_nid_t pin_nid = per_pin->pin_nid;
1845
1846                 hdmi_init_pin(codec, pin_nid);
1847                 snd_hda_jack_detect_enable(codec, pin_nid, pin_nid);
1848         }
1849         return 0;
1850 }
1851
1852 static void hdmi_array_init(struct hdmi_spec *spec, int nums)
1853 {
1854         snd_array_init(&spec->pins, sizeof(struct hdmi_spec_per_pin), nums);
1855         snd_array_init(&spec->cvts, sizeof(struct hdmi_spec_per_cvt), nums);
1856         snd_array_init(&spec->pcm_rec, sizeof(struct hda_pcm), nums);
1857 }
1858
1859 static void hdmi_array_free(struct hdmi_spec *spec)
1860 {
1861         snd_array_free(&spec->pins);
1862         snd_array_free(&spec->cvts);
1863         snd_array_free(&spec->pcm_rec);
1864 }
1865
1866 static void generic_hdmi_free(struct hda_codec *codec)
1867 {
1868         struct hdmi_spec *spec = codec->spec;
1869         int pin_idx;
1870
1871         for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
1872                 struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
1873                 struct hdmi_eld *eld = &per_pin->sink_eld;
1874
1875                 cancel_delayed_work(&per_pin->work);
1876                 snd_hda_eld_proc_free(codec, eld);
1877         }
1878
1879         flush_workqueue(codec->bus->workq);
1880         hdmi_array_free(spec);
1881         kfree(spec);
1882 }
1883
1884 #ifdef CONFIG_PM
1885 static int generic_hdmi_resume(struct hda_codec *codec)
1886 {
1887         struct hdmi_spec *spec = codec->spec;
1888         int pin_idx;
1889
1890         generic_hdmi_init(codec);
1891         snd_hda_codec_resume_amp(codec);
1892         snd_hda_codec_resume_cache(codec);
1893
1894         for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
1895                 struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
1896                 hdmi_present_sense(per_pin, 1);
1897         }
1898         return 0;
1899 }
1900 #endif
1901
1902 static const struct hda_codec_ops generic_hdmi_patch_ops = {
1903         .init                   = generic_hdmi_init,
1904         .free                   = generic_hdmi_free,
1905         .build_pcms             = generic_hdmi_build_pcms,
1906         .build_controls         = generic_hdmi_build_controls,
1907         .unsol_event            = hdmi_unsol_event,
1908 #ifdef CONFIG_PM
1909         .resume                 = generic_hdmi_resume,
1910 #endif
1911 };
1912
1913
1914 static void intel_haswell_fixup_connect_list(struct hda_codec *codec,
1915                                              hda_nid_t nid)
1916 {
1917         struct hdmi_spec *spec = codec->spec;
1918         hda_nid_t conns[4];
1919         int nconns;
1920
1921         nconns = snd_hda_get_connections(codec, nid, conns, ARRAY_SIZE(conns));
1922         if (nconns == spec->num_cvts &&
1923             !memcmp(conns, spec->cvt_nids, spec->num_cvts * sizeof(hda_nid_t)))
1924                 return;
1925
1926         /* override pins connection list */
1927         snd_printdd("hdmi: haswell: override pin connection 0x%x\n", nid);
1928         snd_hda_override_conn_list(codec, nid, spec->num_cvts, spec->cvt_nids);
1929 }
1930
1931 #define INTEL_VENDOR_NID 0x08
1932 #define INTEL_GET_VENDOR_VERB 0xf81
1933 #define INTEL_SET_VENDOR_VERB 0x781
1934 #define INTEL_EN_DP12                   0x02 /* enable DP 1.2 features */
1935 #define INTEL_EN_ALL_PIN_CVTS   0x01 /* enable 2nd & 3rd pins and convertors */
1936
1937 static void intel_haswell_enable_all_pins(struct hda_codec *codec,
1938                                           bool update_tree)
1939 {
1940         unsigned int vendor_param;
1941
1942         vendor_param = snd_hda_codec_read(codec, INTEL_VENDOR_NID, 0,
1943                                 INTEL_GET_VENDOR_VERB, 0);
1944         if (vendor_param == -1 || vendor_param & INTEL_EN_ALL_PIN_CVTS)
1945                 return;
1946
1947         vendor_param |= INTEL_EN_ALL_PIN_CVTS;
1948         vendor_param = snd_hda_codec_read(codec, INTEL_VENDOR_NID, 0,
1949                                 INTEL_SET_VENDOR_VERB, vendor_param);
1950         if (vendor_param == -1)
1951                 return;
1952
1953         if (update_tree)
1954                 snd_hda_codec_update_widgets(codec);
1955 }
1956
1957 static void intel_haswell_fixup_enable_dp12(struct hda_codec *codec)
1958 {
1959         unsigned int vendor_param;
1960
1961         vendor_param = snd_hda_codec_read(codec, INTEL_VENDOR_NID, 0,
1962                                 INTEL_GET_VENDOR_VERB, 0);
1963         if (vendor_param == -1 || vendor_param & INTEL_EN_DP12)
1964                 return;
1965
1966         /* enable DP1.2 mode */
1967         vendor_param |= INTEL_EN_DP12;
1968         snd_hda_codec_write_cache(codec, INTEL_VENDOR_NID, 0,
1969                                 INTEL_SET_VENDOR_VERB, vendor_param);
1970 }
1971
1972 /* Haswell needs to re-issue the vendor-specific verbs before turning to D0.
1973  * Otherwise you may get severe h/w communication errors.
1974  */
1975 static void haswell_set_power_state(struct hda_codec *codec, hda_nid_t fg,
1976                                 unsigned int power_state)
1977 {
1978         if (power_state == AC_PWRST_D0) {
1979                 intel_haswell_enable_all_pins(codec, false);
1980                 intel_haswell_fixup_enable_dp12(codec);
1981         }
1982
1983         snd_hda_codec_read(codec, fg, 0, AC_VERB_SET_POWER_STATE, power_state);
1984         snd_hda_codec_set_power_to_all(codec, fg, power_state);
1985 }
1986
1987 static int patch_generic_hdmi(struct hda_codec *codec)
1988 {
1989         struct hdmi_spec *spec;
1990
1991         spec = kzalloc(sizeof(*spec), GFP_KERNEL);
1992         if (spec == NULL)
1993                 return -ENOMEM;
1994
1995         codec->spec = spec;
1996         hdmi_array_init(spec, 4);
1997
1998         if (is_haswell(codec)) {
1999                 intel_haswell_enable_all_pins(codec, true);
2000                 intel_haswell_fixup_enable_dp12(codec);
2001         }
2002
2003         if (hdmi_parse_codec(codec) < 0) {
2004                 codec->spec = NULL;
2005                 kfree(spec);
2006                 return -EINVAL;
2007         }
2008         codec->patch_ops = generic_hdmi_patch_ops;
2009         if (is_haswell(codec)) {
2010                 codec->patch_ops.set_power_state = haswell_set_power_state;
2011                 codec->dp_mst = true;
2012         }
2013
2014         generic_hdmi_init_per_pins(codec);
2015
2016         init_channel_allocations();
2017
2018         return 0;
2019 }
2020
2021 /*
2022  * Shared non-generic implementations
2023  */
2024
2025 static int simple_playback_build_pcms(struct hda_codec *codec)
2026 {
2027         struct hdmi_spec *spec = codec->spec;
2028         struct hda_pcm *info;
2029         unsigned int chans;
2030         struct hda_pcm_stream *pstr;
2031         struct hdmi_spec_per_cvt *per_cvt;
2032
2033         per_cvt = get_cvt(spec, 0);
2034         chans = get_wcaps(codec, per_cvt->cvt_nid);
2035         chans = get_wcaps_channels(chans);
2036
2037         info = snd_array_new(&spec->pcm_rec);
2038         if (!info)
2039                 return -ENOMEM;
2040         info->name = get_pin(spec, 0)->pcm_name;
2041         sprintf(info->name, "HDMI 0");
2042         info->pcm_type = HDA_PCM_TYPE_HDMI;
2043         pstr = &info->stream[SNDRV_PCM_STREAM_PLAYBACK];
2044         *pstr = spec->pcm_playback;
2045         pstr->nid = per_cvt->cvt_nid;
2046         if (pstr->channels_max <= 2 && chans && chans <= 16)
2047                 pstr->channels_max = chans;
2048
2049         codec->num_pcms = 1;
2050         codec->pcm_info = info;
2051
2052         return 0;
2053 }
2054
2055 /* unsolicited event for jack sensing */
2056 static void simple_hdmi_unsol_event(struct hda_codec *codec,
2057                                     unsigned int res)
2058 {
2059         snd_hda_jack_set_dirty_all(codec);
2060         snd_hda_jack_report_sync(codec);
2061 }
2062
2063 /* generic_hdmi_build_jack can be used for simple_hdmi, too,
2064  * as long as spec->pins[] is set correctly
2065  */
2066 #define simple_hdmi_build_jack  generic_hdmi_build_jack
2067
2068 static int simple_playback_build_controls(struct hda_codec *codec)
2069 {
2070         struct hdmi_spec *spec = codec->spec;
2071         struct hdmi_spec_per_cvt *per_cvt;
2072         int err;
2073
2074         per_cvt = get_cvt(spec, 0);
2075         err = snd_hda_create_spdif_out_ctls(codec, per_cvt->cvt_nid,
2076                                             per_cvt->cvt_nid);
2077         if (err < 0)
2078                 return err;
2079         return simple_hdmi_build_jack(codec, 0);
2080 }
2081
2082 static int simple_playback_init(struct hda_codec *codec)
2083 {
2084         struct hdmi_spec *spec = codec->spec;
2085         struct hdmi_spec_per_pin *per_pin = get_pin(spec, 0);
2086         hda_nid_t pin = per_pin->pin_nid;
2087
2088         snd_hda_codec_write(codec, pin, 0,
2089                             AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT);
2090         /* some codecs require to unmute the pin */
2091         if (get_wcaps(codec, pin) & AC_WCAP_OUT_AMP)
2092                 snd_hda_codec_write(codec, pin, 0, AC_VERB_SET_AMP_GAIN_MUTE,
2093                                     AMP_OUT_UNMUTE);
2094         snd_hda_jack_detect_enable(codec, pin, pin);
2095         return 0;
2096 }
2097
2098 static void simple_playback_free(struct hda_codec *codec)
2099 {
2100         struct hdmi_spec *spec = codec->spec;
2101
2102         hdmi_array_free(spec);
2103         kfree(spec);
2104 }
2105
2106 /*
2107  * Nvidia specific implementations
2108  */
2109
2110 #define Nv_VERB_SET_Channel_Allocation          0xF79
2111 #define Nv_VERB_SET_Info_Frame_Checksum         0xF7A
2112 #define Nv_VERB_SET_Audio_Protection_On         0xF98
2113 #define Nv_VERB_SET_Audio_Protection_Off        0xF99
2114
2115 #define nvhdmi_master_con_nid_7x        0x04
2116 #define nvhdmi_master_pin_nid_7x        0x05
2117
2118 static const hda_nid_t nvhdmi_con_nids_7x[4] = {
2119         /*front, rear, clfe, rear_surr */
2120         0x6, 0x8, 0xa, 0xc,
2121 };
2122
2123 static const struct hda_verb nvhdmi_basic_init_7x_2ch[] = {
2124         /* set audio protect on */
2125         { 0x1, Nv_VERB_SET_Audio_Protection_On, 0x1},
2126         /* enable digital output on pin widget */
2127         { 0x5, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2128         {} /* terminator */
2129 };
2130
2131 static const struct hda_verb nvhdmi_basic_init_7x_8ch[] = {
2132         /* set audio protect on */
2133         { 0x1, Nv_VERB_SET_Audio_Protection_On, 0x1},
2134         /* enable digital output on pin widget */
2135         { 0x5, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2136         { 0x7, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2137         { 0x9, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2138         { 0xb, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2139         { 0xd, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2140         {} /* terminator */
2141 };
2142
2143 #ifdef LIMITED_RATE_FMT_SUPPORT
2144 /* support only the safe format and rate */
2145 #define SUPPORTED_RATES         SNDRV_PCM_RATE_48000
2146 #define SUPPORTED_MAXBPS        16
2147 #define SUPPORTED_FORMATS       SNDRV_PCM_FMTBIT_S16_LE
2148 #else
2149 /* support all rates and formats */
2150 #define SUPPORTED_RATES \
2151         (SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\
2152         SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 |\
2153          SNDRV_PCM_RATE_192000)
2154 #define SUPPORTED_MAXBPS        24
2155 #define SUPPORTED_FORMATS \
2156         (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE)
2157 #endif
2158
2159 static int nvhdmi_7x_init_2ch(struct hda_codec *codec)
2160 {
2161         snd_hda_sequence_write(codec, nvhdmi_basic_init_7x_2ch);
2162         return 0;
2163 }
2164
2165 static int nvhdmi_7x_init_8ch(struct hda_codec *codec)
2166 {
2167         snd_hda_sequence_write(codec, nvhdmi_basic_init_7x_8ch);
2168         return 0;
2169 }
2170
2171 static unsigned int channels_2_6_8[] = {
2172         2, 6, 8
2173 };
2174
2175 static unsigned int channels_2_8[] = {
2176         2, 8
2177 };
2178
2179 static struct snd_pcm_hw_constraint_list hw_constraints_2_6_8_channels = {
2180         .count = ARRAY_SIZE(channels_2_6_8),
2181         .list = channels_2_6_8,
2182         .mask = 0,
2183 };
2184
2185 static struct snd_pcm_hw_constraint_list hw_constraints_2_8_channels = {
2186         .count = ARRAY_SIZE(channels_2_8),
2187         .list = channels_2_8,
2188         .mask = 0,
2189 };
2190
2191 static int simple_playback_pcm_open(struct hda_pcm_stream *hinfo,
2192                                     struct hda_codec *codec,
2193                                     struct snd_pcm_substream *substream)
2194 {
2195         struct hdmi_spec *spec = codec->spec;
2196         struct snd_pcm_hw_constraint_list *hw_constraints_channels = NULL;
2197
2198         switch (codec->preset->id) {
2199         case 0x10de0002:
2200         case 0x10de0003:
2201         case 0x10de0005:
2202         case 0x10de0006:
2203                 hw_constraints_channels = &hw_constraints_2_8_channels;
2204                 break;
2205         case 0x10de0007:
2206                 hw_constraints_channels = &hw_constraints_2_6_8_channels;
2207                 break;
2208         default:
2209                 break;
2210         }
2211
2212         if (hw_constraints_channels != NULL) {
2213                 snd_pcm_hw_constraint_list(substream->runtime, 0,
2214                                 SNDRV_PCM_HW_PARAM_CHANNELS,
2215                                 hw_constraints_channels);
2216         } else {
2217                 snd_pcm_hw_constraint_step(substream->runtime, 0,
2218                                            SNDRV_PCM_HW_PARAM_CHANNELS, 2);
2219         }
2220
2221         return snd_hda_multi_out_dig_open(codec, &spec->multiout);
2222 }
2223
2224 static int simple_playback_pcm_close(struct hda_pcm_stream *hinfo,
2225                                      struct hda_codec *codec,
2226                                      struct snd_pcm_substream *substream)
2227 {
2228         struct hdmi_spec *spec = codec->spec;
2229         return snd_hda_multi_out_dig_close(codec, &spec->multiout);
2230 }
2231
2232 static int simple_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
2233                                        struct hda_codec *codec,
2234                                        unsigned int stream_tag,
2235                                        unsigned int format,
2236                                        struct snd_pcm_substream *substream)
2237 {
2238         struct hdmi_spec *spec = codec->spec;
2239         return snd_hda_multi_out_dig_prepare(codec, &spec->multiout,
2240                                              stream_tag, format, substream);
2241 }
2242
2243 static const struct hda_pcm_stream simple_pcm_playback = {
2244         .substreams = 1,
2245         .channels_min = 2,
2246         .channels_max = 2,
2247         .ops = {
2248                 .open = simple_playback_pcm_open,
2249                 .close = simple_playback_pcm_close,
2250                 .prepare = simple_playback_pcm_prepare
2251         },
2252 };
2253
2254 static const struct hda_codec_ops simple_hdmi_patch_ops = {
2255         .build_controls = simple_playback_build_controls,
2256         .build_pcms = simple_playback_build_pcms,
2257         .init = simple_playback_init,
2258         .free = simple_playback_free,
2259         .unsol_event = simple_hdmi_unsol_event,
2260 };
2261
2262 static int patch_simple_hdmi(struct hda_codec *codec,
2263                              hda_nid_t cvt_nid, hda_nid_t pin_nid)
2264 {
2265         struct hdmi_spec *spec;
2266         struct hdmi_spec_per_cvt *per_cvt;
2267         struct hdmi_spec_per_pin *per_pin;
2268
2269         spec = kzalloc(sizeof(*spec), GFP_KERNEL);
2270         if (!spec)
2271                 return -ENOMEM;
2272
2273         codec->spec = spec;
2274         hdmi_array_init(spec, 1);
2275
2276         spec->multiout.num_dacs = 0;  /* no analog */
2277         spec->multiout.max_channels = 2;
2278         spec->multiout.dig_out_nid = cvt_nid;
2279         spec->num_cvts = 1;
2280         spec->num_pins = 1;
2281         per_pin = snd_array_new(&spec->pins);
2282         per_cvt = snd_array_new(&spec->cvts);
2283         if (!per_pin || !per_cvt) {
2284                 simple_playback_free(codec);
2285                 return -ENOMEM;
2286         }
2287         per_cvt->cvt_nid = cvt_nid;
2288         per_pin->pin_nid = pin_nid;
2289         spec->pcm_playback = simple_pcm_playback;
2290
2291         codec->patch_ops = simple_hdmi_patch_ops;
2292
2293         return 0;
2294 }
2295
2296 static void nvhdmi_8ch_7x_set_info_frame_parameters(struct hda_codec *codec,
2297                                                     int channels)
2298 {
2299         unsigned int chanmask;
2300         int chan = channels ? (channels - 1) : 1;
2301
2302         switch (channels) {
2303         default:
2304         case 0:
2305         case 2:
2306                 chanmask = 0x00;
2307                 break;
2308         case 4:
2309                 chanmask = 0x08;
2310                 break;
2311         case 6:
2312                 chanmask = 0x0b;
2313                 break;
2314         case 8:
2315                 chanmask = 0x13;
2316                 break;
2317         }
2318
2319         /* Set the audio infoframe channel allocation and checksum fields.  The
2320          * channel count is computed implicitly by the hardware. */
2321         snd_hda_codec_write(codec, 0x1, 0,
2322                         Nv_VERB_SET_Channel_Allocation, chanmask);
2323
2324         snd_hda_codec_write(codec, 0x1, 0,
2325                         Nv_VERB_SET_Info_Frame_Checksum,
2326                         (0x71 - chan - chanmask));
2327 }
2328
2329 static int nvhdmi_8ch_7x_pcm_close(struct hda_pcm_stream *hinfo,
2330                                    struct hda_codec *codec,
2331                                    struct snd_pcm_substream *substream)
2332 {
2333         struct hdmi_spec *spec = codec->spec;
2334         int i;
2335
2336         snd_hda_codec_write(codec, nvhdmi_master_con_nid_7x,
2337                         0, AC_VERB_SET_CHANNEL_STREAMID, 0);
2338         for (i = 0; i < 4; i++) {
2339                 /* set the stream id */
2340                 snd_hda_codec_write(codec, nvhdmi_con_nids_7x[i], 0,
2341                                 AC_VERB_SET_CHANNEL_STREAMID, 0);
2342                 /* set the stream format */
2343                 snd_hda_codec_write(codec, nvhdmi_con_nids_7x[i], 0,
2344                                 AC_VERB_SET_STREAM_FORMAT, 0);
2345         }
2346
2347         /* The audio hardware sends a channel count of 0x7 (8ch) when all the
2348          * streams are disabled. */
2349         nvhdmi_8ch_7x_set_info_frame_parameters(codec, 8);
2350
2351         return snd_hda_multi_out_dig_close(codec, &spec->multiout);
2352 }
2353
2354 static int nvhdmi_8ch_7x_pcm_prepare(struct hda_pcm_stream *hinfo,
2355                                      struct hda_codec *codec,
2356                                      unsigned int stream_tag,
2357                                      unsigned int format,
2358                                      struct snd_pcm_substream *substream)
2359 {
2360         int chs;
2361         unsigned int dataDCC2, channel_id;
2362         int i;
2363         struct hdmi_spec *spec = codec->spec;
2364         struct hda_spdif_out *spdif;
2365         struct hdmi_spec_per_cvt *per_cvt;
2366
2367         mutex_lock(&codec->spdif_mutex);
2368         per_cvt = get_cvt(spec, 0);
2369         spdif = snd_hda_spdif_out_of_nid(codec, per_cvt->cvt_nid);
2370
2371         chs = substream->runtime->channels;
2372
2373         dataDCC2 = 0x2;
2374
2375         /* turn off SPDIF once; otherwise the IEC958 bits won't be updated */
2376         if (codec->spdif_status_reset && (spdif->ctls & AC_DIG1_ENABLE))
2377                 snd_hda_codec_write(codec,
2378                                 nvhdmi_master_con_nid_7x,
2379                                 0,
2380                                 AC_VERB_SET_DIGI_CONVERT_1,
2381                                 spdif->ctls & ~AC_DIG1_ENABLE & 0xff);
2382
2383         /* set the stream id */
2384         snd_hda_codec_write(codec, nvhdmi_master_con_nid_7x, 0,
2385                         AC_VERB_SET_CHANNEL_STREAMID, (stream_tag << 4) | 0x0);
2386
2387         /* set the stream format */
2388         snd_hda_codec_write(codec, nvhdmi_master_con_nid_7x, 0,
2389                         AC_VERB_SET_STREAM_FORMAT, format);
2390
2391         /* turn on again (if needed) */
2392         /* enable and set the channel status audio/data flag */
2393         if (codec->spdif_status_reset && (spdif->ctls & AC_DIG1_ENABLE)) {
2394                 snd_hda_codec_write(codec,
2395                                 nvhdmi_master_con_nid_7x,
2396                                 0,
2397                                 AC_VERB_SET_DIGI_CONVERT_1,
2398                                 spdif->ctls & 0xff);
2399                 snd_hda_codec_write(codec,
2400                                 nvhdmi_master_con_nid_7x,
2401                                 0,
2402                                 AC_VERB_SET_DIGI_CONVERT_2, dataDCC2);
2403         }
2404
2405         for (i = 0; i < 4; i++) {
2406                 if (chs == 2)
2407                         channel_id = 0;
2408                 else
2409                         channel_id = i * 2;
2410
2411                 /* turn off SPDIF once;
2412                  *otherwise the IEC958 bits won't be updated
2413                  */
2414                 if (codec->spdif_status_reset &&
2415                 (spdif->ctls & AC_DIG1_ENABLE))
2416                         snd_hda_codec_write(codec,
2417                                 nvhdmi_con_nids_7x[i],
2418                                 0,
2419                                 AC_VERB_SET_DIGI_CONVERT_1,
2420                                 spdif->ctls & ~AC_DIG1_ENABLE & 0xff);
2421                 /* set the stream id */
2422                 snd_hda_codec_write(codec,
2423                                 nvhdmi_con_nids_7x[i],
2424                                 0,
2425                                 AC_VERB_SET_CHANNEL_STREAMID,
2426                                 (stream_tag << 4) | channel_id);
2427                 /* set the stream format */
2428                 snd_hda_codec_write(codec,
2429                                 nvhdmi_con_nids_7x[i],
2430                                 0,
2431                                 AC_VERB_SET_STREAM_FORMAT,
2432                                 format);
2433                 /* turn on again (if needed) */
2434                 /* enable and set the channel status audio/data flag */
2435                 if (codec->spdif_status_reset &&
2436                 (spdif->ctls & AC_DIG1_ENABLE)) {
2437                         snd_hda_codec_write(codec,
2438                                         nvhdmi_con_nids_7x[i],
2439                                         0,
2440                                         AC_VERB_SET_DIGI_CONVERT_1,
2441                                         spdif->ctls & 0xff);
2442                         snd_hda_codec_write(codec,
2443                                         nvhdmi_con_nids_7x[i],
2444                                         0,
2445                                         AC_VERB_SET_DIGI_CONVERT_2, dataDCC2);
2446                 }
2447         }
2448
2449         nvhdmi_8ch_7x_set_info_frame_parameters(codec, chs);
2450
2451         mutex_unlock(&codec->spdif_mutex);
2452         return 0;
2453 }
2454
2455 static const struct hda_pcm_stream nvhdmi_pcm_playback_8ch_7x = {
2456         .substreams = 1,
2457         .channels_min = 2,
2458         .channels_max = 8,
2459         .nid = nvhdmi_master_con_nid_7x,
2460         .rates = SUPPORTED_RATES,
2461         .maxbps = SUPPORTED_MAXBPS,
2462         .formats = SUPPORTED_FORMATS,
2463         .ops = {
2464                 .open = simple_playback_pcm_open,
2465                 .close = nvhdmi_8ch_7x_pcm_close,
2466                 .prepare = nvhdmi_8ch_7x_pcm_prepare
2467         },
2468 };
2469
2470 static int patch_nvhdmi_2ch(struct hda_codec *codec)
2471 {
2472         struct hdmi_spec *spec;
2473         int err = patch_simple_hdmi(codec, nvhdmi_master_con_nid_7x,
2474                                     nvhdmi_master_pin_nid_7x);
2475         if (err < 0)
2476                 return err;
2477
2478         codec->patch_ops.init = nvhdmi_7x_init_2ch;
2479         /* override the PCM rates, etc, as the codec doesn't give full list */
2480         spec = codec->spec;
2481         spec->pcm_playback.rates = SUPPORTED_RATES;
2482         spec->pcm_playback.maxbps = SUPPORTED_MAXBPS;
2483         spec->pcm_playback.formats = SUPPORTED_FORMATS;
2484         return 0;
2485 }
2486
2487 static int nvhdmi_7x_8ch_build_pcms(struct hda_codec *codec)
2488 {
2489         struct hdmi_spec *spec = codec->spec;
2490         int err = simple_playback_build_pcms(codec);
2491         if (!err) {
2492                 struct hda_pcm *info = get_pcm_rec(spec, 0);
2493                 info->own_chmap = true;
2494         }
2495         return err;
2496 }
2497
2498 static int nvhdmi_7x_8ch_build_controls(struct hda_codec *codec)
2499 {
2500         struct hdmi_spec *spec = codec->spec;
2501         struct hda_pcm *info;
2502         struct snd_pcm_chmap *chmap;
2503         int err;
2504
2505         err = simple_playback_build_controls(codec);
2506         if (err < 0)
2507                 return err;
2508
2509         /* add channel maps */
2510         info = get_pcm_rec(spec, 0);
2511         err = snd_pcm_add_chmap_ctls(info->pcm,
2512                                      SNDRV_PCM_STREAM_PLAYBACK,
2513                                      snd_pcm_alt_chmaps, 8, 0, &chmap);
2514         if (err < 0)
2515                 return err;
2516         switch (codec->preset->id) {
2517         case 0x10de0002:
2518         case 0x10de0003:
2519         case 0x10de0005:
2520         case 0x10de0006:
2521                 chmap->channel_mask = (1U << 2) | (1U << 8);
2522                 break;
2523         case 0x10de0007:
2524                 chmap->channel_mask = (1U << 2) | (1U << 6) | (1U << 8);
2525         }
2526         return 0;
2527 }
2528
2529 static int patch_nvhdmi_8ch_7x(struct hda_codec *codec)
2530 {
2531         struct hdmi_spec *spec;
2532         int err = patch_nvhdmi_2ch(codec);
2533         if (err < 0)
2534                 return err;
2535         spec = codec->spec;
2536         spec->multiout.max_channels = 8;
2537         spec->pcm_playback = nvhdmi_pcm_playback_8ch_7x;
2538         codec->patch_ops.init = nvhdmi_7x_init_8ch;
2539         codec->patch_ops.build_pcms = nvhdmi_7x_8ch_build_pcms;
2540         codec->patch_ops.build_controls = nvhdmi_7x_8ch_build_controls;
2541
2542         /* Initialize the audio infoframe channel mask and checksum to something
2543          * valid */
2544         nvhdmi_8ch_7x_set_info_frame_parameters(codec, 8);
2545
2546         return 0;
2547 }
2548
2549 /*
2550  * ATI-specific implementations
2551  *
2552  * FIXME: we may omit the whole this and use the generic code once after
2553  * it's confirmed to work.
2554  */
2555
2556 #define ATIHDMI_CVT_NID         0x02    /* audio converter */
2557 #define ATIHDMI_PIN_NID         0x03    /* HDMI output pin */
2558
2559 static int atihdmi_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
2560                                         struct hda_codec *codec,
2561                                         unsigned int stream_tag,
2562                                         unsigned int format,
2563                                         struct snd_pcm_substream *substream)
2564 {
2565         struct hdmi_spec *spec = codec->spec;
2566         struct hdmi_spec_per_cvt *per_cvt = get_cvt(spec, 0);
2567         int chans = substream->runtime->channels;
2568         int i, err;
2569
2570         err = simple_playback_pcm_prepare(hinfo, codec, stream_tag, format,
2571                                           substream);
2572         if (err < 0)
2573                 return err;
2574         snd_hda_codec_write(codec, per_cvt->cvt_nid, 0,
2575                             AC_VERB_SET_CVT_CHAN_COUNT, chans - 1);
2576         /* FIXME: XXX */
2577         for (i = 0; i < chans; i++) {
2578                 snd_hda_codec_write(codec, per_cvt->cvt_nid, 0,
2579                                     AC_VERB_SET_HDMI_CHAN_SLOT,
2580                                     (i << 4) | i);
2581         }
2582         return 0;
2583 }
2584
2585 static int patch_atihdmi(struct hda_codec *codec)
2586 {
2587         struct hdmi_spec *spec;
2588         int err = patch_simple_hdmi(codec, ATIHDMI_CVT_NID, ATIHDMI_PIN_NID);
2589         if (err < 0)
2590                 return err;
2591         spec = codec->spec;
2592         spec->pcm_playback.ops.prepare = atihdmi_playback_pcm_prepare;
2593         return 0;
2594 }
2595
2596 /* VIA HDMI Implementation */
2597 #define VIAHDMI_CVT_NID 0x02    /* audio converter1 */
2598 #define VIAHDMI_PIN_NID 0x03    /* HDMI output pin1 */
2599
2600 static int patch_via_hdmi(struct hda_codec *codec)
2601 {
2602         return patch_simple_hdmi(codec, VIAHDMI_CVT_NID, VIAHDMI_PIN_NID);
2603 }
2604
2605 /*
2606  * patch entries
2607  */
2608 static const struct hda_codec_preset snd_hda_preset_hdmi[] = {
2609 { .id = 0x1002793c, .name = "RS600 HDMI",       .patch = patch_atihdmi },
2610 { .id = 0x10027919, .name = "RS600 HDMI",       .patch = patch_atihdmi },
2611 { .id = 0x1002791a, .name = "RS690/780 HDMI",   .patch = patch_atihdmi },
2612 { .id = 0x1002aa01, .name = "R6xx HDMI",        .patch = patch_generic_hdmi },
2613 { .id = 0x10951390, .name = "SiI1390 HDMI",     .patch = patch_generic_hdmi },
2614 { .id = 0x10951392, .name = "SiI1392 HDMI",     .patch = patch_generic_hdmi },
2615 { .id = 0x17e80047, .name = "Chrontel HDMI",    .patch = patch_generic_hdmi },
2616 { .id = 0x10de0002, .name = "MCP77/78 HDMI",    .patch = patch_nvhdmi_8ch_7x },
2617 { .id = 0x10de0003, .name = "MCP77/78 HDMI",    .patch = patch_nvhdmi_8ch_7x },
2618 { .id = 0x10de0005, .name = "MCP77/78 HDMI",    .patch = patch_nvhdmi_8ch_7x },
2619 { .id = 0x10de0006, .name = "MCP77/78 HDMI",    .patch = patch_nvhdmi_8ch_7x },
2620 { .id = 0x10de0007, .name = "MCP79/7A HDMI",    .patch = patch_nvhdmi_8ch_7x },
2621 { .id = 0x10de000a, .name = "GPU 0a HDMI/DP",   .patch = patch_generic_hdmi },
2622 { .id = 0x10de000b, .name = "GPU 0b HDMI/DP",   .patch = patch_generic_hdmi },
2623 { .id = 0x10de000c, .name = "MCP89 HDMI",       .patch = patch_generic_hdmi },
2624 { .id = 0x10de000d, .name = "GPU 0d HDMI/DP",   .patch = patch_generic_hdmi },
2625 { .id = 0x10de0010, .name = "GPU 10 HDMI/DP",   .patch = patch_generic_hdmi },
2626 { .id = 0x10de0011, .name = "GPU 11 HDMI/DP",   .patch = patch_generic_hdmi },
2627 { .id = 0x10de0012, .name = "GPU 12 HDMI/DP",   .patch = patch_generic_hdmi },
2628 { .id = 0x10de0013, .name = "GPU 13 HDMI/DP",   .patch = patch_generic_hdmi },
2629 { .id = 0x10de0014, .name = "GPU 14 HDMI/DP",   .patch = patch_generic_hdmi },
2630 { .id = 0x10de0015, .name = "GPU 15 HDMI/DP",   .patch = patch_generic_hdmi },
2631 { .id = 0x10de0016, .name = "GPU 16 HDMI/DP",   .patch = patch_generic_hdmi },
2632 /* 17 is known to be absent */
2633 { .id = 0x10de0018, .name = "GPU 18 HDMI/DP",   .patch = patch_generic_hdmi },
2634 { .id = 0x10de0019, .name = "GPU 19 HDMI/DP",   .patch = patch_generic_hdmi },
2635 { .id = 0x10de001a, .name = "GPU 1a HDMI/DP",   .patch = patch_generic_hdmi },
2636 { .id = 0x10de001b, .name = "GPU 1b HDMI/DP",   .patch = patch_generic_hdmi },
2637 { .id = 0x10de001c, .name = "GPU 1c HDMI/DP",   .patch = patch_generic_hdmi },
2638 { .id = 0x10de0040, .name = "GPU 40 HDMI/DP",   .patch = patch_generic_hdmi },
2639 { .id = 0x10de0041, .name = "GPU 41 HDMI/DP",   .patch = patch_generic_hdmi },
2640 { .id = 0x10de0042, .name = "GPU 42 HDMI/DP",   .patch = patch_generic_hdmi },
2641 { .id = 0x10de0043, .name = "GPU 43 HDMI/DP",   .patch = patch_generic_hdmi },
2642 { .id = 0x10de0044, .name = "GPU 44 HDMI/DP",   .patch = patch_generic_hdmi },
2643 { .id = 0x10de0051, .name = "GPU 51 HDMI/DP",   .patch = patch_generic_hdmi },
2644 { .id = 0x10de0060, .name = "GPU 60 HDMI/DP",   .patch = patch_generic_hdmi },
2645 { .id = 0x10de0067, .name = "MCP67 HDMI",       .patch = patch_nvhdmi_2ch },
2646 { .id = 0x10de8001, .name = "MCP73 HDMI",       .patch = patch_nvhdmi_2ch },
2647 { .id = 0x11069f80, .name = "VX900 HDMI/DP",    .patch = patch_via_hdmi },
2648 { .id = 0x11069f81, .name = "VX900 HDMI/DP",    .patch = patch_via_hdmi },
2649 { .id = 0x11069f84, .name = "VX11 HDMI/DP",     .patch = patch_generic_hdmi },
2650 { .id = 0x11069f85, .name = "VX11 HDMI/DP",     .patch = patch_generic_hdmi },
2651 { .id = 0x80860054, .name = "IbexPeak HDMI",    .patch = patch_generic_hdmi },
2652 { .id = 0x80862801, .name = "Bearlake HDMI",    .patch = patch_generic_hdmi },
2653 { .id = 0x80862802, .name = "Cantiga HDMI",     .patch = patch_generic_hdmi },
2654 { .id = 0x80862803, .name = "Eaglelake HDMI",   .patch = patch_generic_hdmi },
2655 { .id = 0x80862804, .name = "IbexPeak HDMI",    .patch = patch_generic_hdmi },
2656 { .id = 0x80862805, .name = "CougarPoint HDMI", .patch = patch_generic_hdmi },
2657 { .id = 0x80862806, .name = "PantherPoint HDMI", .patch = patch_generic_hdmi },
2658 { .id = 0x80862807, .name = "Haswell HDMI",     .patch = patch_generic_hdmi },
2659 { .id = 0x80862880, .name = "CedarTrail HDMI",  .patch = patch_generic_hdmi },
2660 { .id = 0x808629fb, .name = "Crestline HDMI",   .patch = patch_generic_hdmi },
2661 {} /* terminator */
2662 };
2663
2664 MODULE_ALIAS("snd-hda-codec-id:1002793c");
2665 MODULE_ALIAS("snd-hda-codec-id:10027919");
2666 MODULE_ALIAS("snd-hda-codec-id:1002791a");
2667 MODULE_ALIAS("snd-hda-codec-id:1002aa01");
2668 MODULE_ALIAS("snd-hda-codec-id:10951390");
2669 MODULE_ALIAS("snd-hda-codec-id:10951392");
2670 MODULE_ALIAS("snd-hda-codec-id:10de0002");
2671 MODULE_ALIAS("snd-hda-codec-id:10de0003");
2672 MODULE_ALIAS("snd-hda-codec-id:10de0005");
2673 MODULE_ALIAS("snd-hda-codec-id:10de0006");
2674 MODULE_ALIAS("snd-hda-codec-id:10de0007");
2675 MODULE_ALIAS("snd-hda-codec-id:10de000a");
2676 MODULE_ALIAS("snd-hda-codec-id:10de000b");
2677 MODULE_ALIAS("snd-hda-codec-id:10de000c");
2678 MODULE_ALIAS("snd-hda-codec-id:10de000d");
2679 MODULE_ALIAS("snd-hda-codec-id:10de0010");
2680 MODULE_ALIAS("snd-hda-codec-id:10de0011");
2681 MODULE_ALIAS("snd-hda-codec-id:10de0012");
2682 MODULE_ALIAS("snd-hda-codec-id:10de0013");
2683 MODULE_ALIAS("snd-hda-codec-id:10de0014");
2684 MODULE_ALIAS("snd-hda-codec-id:10de0015");
2685 MODULE_ALIAS("snd-hda-codec-id:10de0016");
2686 MODULE_ALIAS("snd-hda-codec-id:10de0018");
2687 MODULE_ALIAS("snd-hda-codec-id:10de0019");
2688 MODULE_ALIAS("snd-hda-codec-id:10de001a");
2689 MODULE_ALIAS("snd-hda-codec-id:10de001b");
2690 MODULE_ALIAS("snd-hda-codec-id:10de001c");
2691 MODULE_ALIAS("snd-hda-codec-id:10de0040");
2692 MODULE_ALIAS("snd-hda-codec-id:10de0041");
2693 MODULE_ALIAS("snd-hda-codec-id:10de0042");
2694 MODULE_ALIAS("snd-hda-codec-id:10de0043");
2695 MODULE_ALIAS("snd-hda-codec-id:10de0044");
2696 MODULE_ALIAS("snd-hda-codec-id:10de0051");
2697 MODULE_ALIAS("snd-hda-codec-id:10de0060");
2698 MODULE_ALIAS("snd-hda-codec-id:10de0067");
2699 MODULE_ALIAS("snd-hda-codec-id:10de8001");
2700 MODULE_ALIAS("snd-hda-codec-id:11069f80");
2701 MODULE_ALIAS("snd-hda-codec-id:11069f81");
2702 MODULE_ALIAS("snd-hda-codec-id:11069f84");
2703 MODULE_ALIAS("snd-hda-codec-id:11069f85");
2704 MODULE_ALIAS("snd-hda-codec-id:17e80047");
2705 MODULE_ALIAS("snd-hda-codec-id:80860054");
2706 MODULE_ALIAS("snd-hda-codec-id:80862801");
2707 MODULE_ALIAS("snd-hda-codec-id:80862802");
2708 MODULE_ALIAS("snd-hda-codec-id:80862803");
2709 MODULE_ALIAS("snd-hda-codec-id:80862804");
2710 MODULE_ALIAS("snd-hda-codec-id:80862805");
2711 MODULE_ALIAS("snd-hda-codec-id:80862806");
2712 MODULE_ALIAS("snd-hda-codec-id:80862807");
2713 MODULE_ALIAS("snd-hda-codec-id:80862880");
2714 MODULE_ALIAS("snd-hda-codec-id:808629fb");
2715
2716 MODULE_LICENSE("GPL");
2717 MODULE_DESCRIPTION("HDMI HD-audio codec");
2718 MODULE_ALIAS("snd-hda-codec-intelhdmi");
2719 MODULE_ALIAS("snd-hda-codec-nvhdmi");
2720 MODULE_ALIAS("snd-hda-codec-atihdmi");
2721
2722 static struct hda_codec_preset_list intel_list = {
2723         .preset = snd_hda_preset_hdmi,
2724         .owner = THIS_MODULE,
2725 };
2726
2727 static int __init patch_hdmi_init(void)
2728 {
2729         return snd_hda_add_codec_preset(&intel_list);
2730 }
2731
2732 static void __exit patch_hdmi_exit(void)
2733 {
2734         snd_hda_delete_codec_preset(&intel_list);
2735 }
2736
2737 module_init(patch_hdmi_init)
2738 module_exit(patch_hdmi_exit)