sound/pci/hda/hda_codec.h

   1 /*
   2  * Universal Interface for Intel High Definition Audio Codec
   3  *
   4  * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
   5  *
   6  *  This program is free software; you can redistribute it and/or modify it
   7  *  under the terms of the GNU General Public License as published by the Free
   8  *  Software Foundation; either version 2 of the License, or (at your option)
   9  *  any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful, but WITHOUT
  12  *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  14  *  more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License along with
  17  *  this program; if not, write to the Free Software Foundation, Inc., 59
  18  *  Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  19  */
  20
  21 #ifndef __SOUND_HDA_CODEC_H
  22 #define __SOUND_HDA_CODEC_H
  23
  24 #include <sound/info.h>
  25 #include <sound/control.h>
  26 #include <sound/pcm.h>
  27 #include <sound/hwdep.h>
  28
  29 #if defined(CONFIG_PM) || defined(CONFIG_SND_HDA_POWER_SAVE)
  30 #define SND_HDA_NEEDS_RESUME    /* resume control code is required */
  31 #endif
  32
  33 /*
  34  * nodes
  35  */
  36 #define AC_NODE_ROOT            0x00
  37
  38 /*
  39  * function group types
  40  */
  41 enum {
  42         AC_GRP_AUDIO_FUNCTION = 0x01,
  43         AC_GRP_MODEM_FUNCTION = 0x02,
  44 };
  45
  46 /*
  47  * widget types
  48  */
  49 enum {
  50         AC_WID_AUD_OUT,         /* Audio Out */
  51         AC_WID_AUD_IN,          /* Audio In */
  52         AC_WID_AUD_MIX,         /* Audio Mixer */
  53         AC_WID_AUD_SEL,         /* Audio Selector */
  54         AC_WID_PIN,             /* Pin Complex */
  55         AC_WID_POWER,           /* Power */
  56         AC_WID_VOL_KNB,         /* Volume Knob */
  57         AC_WID_BEEP,            /* Beep Generator */
  58         AC_WID_VENDOR = 0x0f    /* Vendor specific */
  59 };
  60
  61 /*
  62  * GET verbs
  63  */
  64 #define AC_VERB_GET_STREAM_FORMAT               0x0a00
  65 #define AC_VERB_GET_AMP_GAIN_MUTE               0x0b00
  66 #define AC_VERB_GET_PROC_COEF                   0x0c00
  67 #define AC_VERB_GET_COEF_INDEX                  0x0d00
  68 #define AC_VERB_PARAMETERS                      0x0f00
  69 #define AC_VERB_GET_CONNECT_SEL                 0x0f01
  70 #define AC_VERB_GET_CONNECT_LIST                0x0f02
  71 #define AC_VERB_GET_PROC_STATE                  0x0f03
  72 #define AC_VERB_GET_SDI_SELECT                  0x0f04
  73 #define AC_VERB_GET_POWER_STATE                 0x0f05
  74 #define AC_VERB_GET_CONV                        0x0f06
  75 #define AC_VERB_GET_PIN_WIDGET_CONTROL          0x0f07
  76 #define AC_VERB_GET_UNSOLICITED_RESPONSE        0x0f08
  77 #define AC_VERB_GET_PIN_SENSE                   0x0f09
  78 #define AC_VERB_GET_BEEP_CONTROL                0x0f0a
  79 #define AC_VERB_GET_EAPD_BTLENABLE              0x0f0c
  80 #define AC_VERB_GET_DIGI_CONVERT_1              0x0f0d
  81 #define AC_VERB_GET_DIGI_CONVERT_2              0x0f0e /* unused */
  82 #define AC_VERB_GET_VOLUME_KNOB_CONTROL         0x0f0f
  83 /* f10-f1a: GPIO */
  84 #define AC_VERB_GET_GPIO_DATA                   0x0f15
  85 #define AC_VERB_GET_GPIO_MASK                   0x0f16
  86 #define AC_VERB_GET_GPIO_DIRECTION              0x0f17
  87 #define AC_VERB_GET_GPIO_WAKE_MASK              0x0f18
  88 #define AC_VERB_GET_GPIO_UNSOLICITED_RSP_MASK   0x0f19
  89 #define AC_VERB_GET_GPIO_STICKY_MASK            0x0f1a
  90 #define AC_VERB_GET_CONFIG_DEFAULT              0x0f1c
  91 /* f20: AFG/MFG */
  92 #define AC_VERB_GET_SUBSYSTEM_ID                0x0f20
  93 #define AC_VERB_GET_CVT_CHAN_COUNT              0x0f2d
  94 #define AC_VERB_GET_HDMI_DIP_SIZE               0x0f2e
  95 #define AC_VERB_GET_HDMI_ELDD                   0x0f2f
  96 #define AC_VERB_GET_HDMI_DIP_INDEX              0x0f30
  97 #define AC_VERB_GET_HDMI_DIP_DATA               0x0f31
  98 #define AC_VERB_GET_HDMI_DIP_XMIT               0x0f32
  99 #define AC_VERB_GET_HDMI_CP_CTRL                0x0f33
 100 #define AC_VERB_GET_HDMI_CHAN_SLOT              0x0f34
 101
 102 /*
 103  * SET verbs
 104  */
 105 #define AC_VERB_SET_STREAM_FORMAT               0x200
 106 #define AC_VERB_SET_AMP_GAIN_MUTE               0x300
 107 #define AC_VERB_SET_PROC_COEF                   0x400
 108 #define AC_VERB_SET_COEF_INDEX                  0x500
 109 #define AC_VERB_SET_CONNECT_SEL                 0x701
 110 #define AC_VERB_SET_PROC_STATE                  0x703
 111 #define AC_VERB_SET_SDI_SELECT                  0x704
 112 #define AC_VERB_SET_POWER_STATE                 0x705
 113 #define AC_VERB_SET_CHANNEL_STREAMID            0x706
 114 #define AC_VERB_SET_PIN_WIDGET_CONTROL          0x707
 115 #define AC_VERB_SET_UNSOLICITED_ENABLE          0x708
 116 #define AC_VERB_SET_PIN_SENSE                   0x709
 117 #define AC_VERB_SET_BEEP_CONTROL                0x70a
 118 #define AC_VERB_SET_EAPD_BTLENABLE              0x70c
 119 #define AC_VERB_SET_DIGI_CONVERT_1              0x70d
 120 #define AC_VERB_SET_DIGI_CONVERT_2              0x70e
 121 #define AC_VERB_SET_VOLUME_KNOB_CONTROL         0x70f
 122 #define AC_VERB_SET_GPIO_DATA                   0x715
 123 #define AC_VERB_SET_GPIO_MASK                   0x716
 124 #define AC_VERB_SET_GPIO_DIRECTION              0x717
 125 #define AC_VERB_SET_GPIO_WAKE_MASK              0x718
 126 #define AC_VERB_SET_GPIO_UNSOLICITED_RSP_MASK   0x719
 127 #define AC_VERB_SET_GPIO_STICKY_MASK            0x71a
 128 #define AC_VERB_SET_CONFIG_DEFAULT_BYTES_0      0x71c
 129 #define AC_VERB_SET_CONFIG_DEFAULT_BYTES_1      0x71d
 130 #define AC_VERB_SET_CONFIG_DEFAULT_BYTES_2      0x71e
 131 #define AC_VERB_SET_CONFIG_DEFAULT_BYTES_3      0x71f
 132 #define AC_VERB_SET_EAPD                                0x788
 133 #define AC_VERB_SET_CODEC_RESET                 0x7ff
 134 #define AC_VERB_SET_CVT_CHAN_COUNT              0x72d
 135 #define AC_VERB_SET_HDMI_DIP_INDEX              0x730
 136 #define AC_VERB_SET_HDMI_DIP_DATA               0x731
 137 #define AC_VERB_SET_HDMI_DIP_XMIT               0x732
 138 #define AC_VERB_SET_HDMI_CP_CTRL                0x733
 139 #define AC_VERB_SET_HDMI_CHAN_SLOT              0x734
 140
 141 /*
 142  * Parameter IDs
 143  */
 144 #define AC_PAR_VENDOR_ID                0x00
 145 #define AC_PAR_SUBSYSTEM_ID             0x01
 146 #define AC_PAR_REV_ID                   0x02
 147 #define AC_PAR_NODE_COUNT               0x04
 148 #define AC_PAR_FUNCTION_TYPE            0x05
 149 #define AC_PAR_AUDIO_FG_CAP             0x08
 150 #define AC_PAR_AUDIO_WIDGET_CAP         0x09
 151 #define AC_PAR_PCM                      0x0a
 152 #define AC_PAR_STREAM                   0x0b
 153 #define AC_PAR_PIN_CAP                  0x0c
 154 #define AC_PAR_AMP_IN_CAP               0x0d
 155 #define AC_PAR_CONNLIST_LEN             0x0e
 156 #define AC_PAR_POWER_STATE              0x0f
 157 #define AC_PAR_PROC_CAP                 0x10
 158 #define AC_PAR_GPIO_CAP                 0x11
 159 #define AC_PAR_AMP_OUT_CAP              0x12
 160 #define AC_PAR_VOL_KNB_CAP              0x13
 161 #define AC_PAR_HDMI_LPCM_CAP            0x20
 162
 163 /*
 164  * AC_VERB_PARAMETERS results (32bit)
 165  */
 166
 167 /* Function Group Type */
 168 #define AC_FGT_TYPE                     (0xff<<0)
 169 #define AC_FGT_TYPE_SHIFT               0
 170 #define AC_FGT_UNSOL_CAP                (1<<8)
 171
 172 /* Audio Function Group Capabilities */
 173 #define AC_AFG_OUT_DELAY                (0xf<<0)
 174 #define AC_AFG_IN_DELAY                 (0xf<<8)
 175 #define AC_AFG_BEEP_GEN                 (1<<16)
 176
 177 /* Audio Widget Capabilities */
 178 #define AC_WCAP_STEREO                  (1<<0)  /* stereo I/O */
 179 #define AC_WCAP_IN_AMP                  (1<<1)  /* AMP-in present */
 180 #define AC_WCAP_OUT_AMP                 (1<<2)  /* AMP-out present */
 181 #define AC_WCAP_AMP_OVRD                (1<<3)  /* AMP-parameter override */
 182 #define AC_WCAP_FORMAT_OVRD             (1<<4)  /* format override */
 183 #define AC_WCAP_STRIPE                  (1<<5)  /* stripe */
 184 #define AC_WCAP_PROC_WID                (1<<6)  /* Proc Widget */
 185 #define AC_WCAP_UNSOL_CAP               (1<<7)  /* Unsol capable */
 186 #define AC_WCAP_CONN_LIST               (1<<8)  /* connection list */
 187 #define AC_WCAP_DIGITAL                 (1<<9)  /* digital I/O */
 188 #define AC_WCAP_POWER                   (1<<10) /* power control */
 189 #define AC_WCAP_LR_SWAP                 (1<<11) /* L/R swap */
 190 #define AC_WCAP_CP_CAPS                 (1<<12) /* content protection */
 191 #define AC_WCAP_CHAN_CNT_EXT            (7<<13) /* channel count ext */
 192 #define AC_WCAP_DELAY                   (0xf<<16)
 193 #define AC_WCAP_DELAY_SHIFT             16
 194 #define AC_WCAP_TYPE                    (0xf<<20)
 195 #define AC_WCAP_TYPE_SHIFT              20
 196
 197 /* supported PCM rates and bits */
 198 #define AC_SUPPCM_RATES                 (0xfff << 0)
 199 #define AC_SUPPCM_BITS_8                (1<<16)
 200 #define AC_SUPPCM_BITS_16               (1<<17)
 201 #define AC_SUPPCM_BITS_20               (1<<18)
 202 #define AC_SUPPCM_BITS_24               (1<<19)
 203 #define AC_SUPPCM_BITS_32               (1<<20)
 204
 205 /* supported PCM stream format */
 206 #define AC_SUPFMT_PCM                   (1<<0)
 207 #define AC_SUPFMT_FLOAT32               (1<<1)
 208 #define AC_SUPFMT_AC3                   (1<<2)
 209
 210 /* GP I/O count */
 211 #define AC_GPIO_IO_COUNT                (0xff<<0)
 212 #define AC_GPIO_O_COUNT                 (0xff<<8)
 213 #define AC_GPIO_O_COUNT_SHIFT           8
 214 #define AC_GPIO_I_COUNT                 (0xff<<16)
 215 #define AC_GPIO_I_COUNT_SHIFT           16
 216 #define AC_GPIO_UNSOLICITED             (1<<30)
 217 #define AC_GPIO_WAKE                    (1<<31)
 218
 219 /* Converter stream, channel */
 220 #define AC_CONV_CHANNEL                 (0xf<<0)
 221 #define AC_CONV_STREAM                  (0xf<<4)
 222 #define AC_CONV_STREAM_SHIFT            4
 223
 224 /* Input converter SDI select */
 225 #define AC_SDI_SELECT                   (0xf<<0)
 226
 227 /* stream format id */
 228 #define AC_FMT_CHAN_SHIFT               0
 229 #define AC_FMT_CHAN_MASK                (0x0f << 0)
 230 #define AC_FMT_BITS_SHIFT               4
 231 #define AC_FMT_BITS_MASK                (7 << 4)
 232 #define AC_FMT_BITS_8                   (0 << 4)
 233 #define AC_FMT_BITS_16                  (1 << 4)
 234 #define AC_FMT_BITS_20                  (2 << 4)
 235 #define AC_FMT_BITS_24                  (3 << 4)
 236 #define AC_FMT_BITS_32                  (4 << 4)
 237 #define AC_FMT_DIV_SHIFT                8
 238 #define AC_FMT_DIV_MASK                 (7 << 8)
 239 #define AC_FMT_MULT_SHIFT               11
 240 #define AC_FMT_MULT_MASK                (7 << 11)
 241 #define AC_FMT_BASE_SHIFT               14
 242 #define AC_FMT_BASE_48K                 (0 << 14)
 243 #define AC_FMT_BASE_44K                 (1 << 14)
 244 #define AC_FMT_TYPE_SHIFT               15
 245 #define AC_FMT_TYPE_PCM                 (0 << 15)
 246 #define AC_FMT_TYPE_NON_PCM             (1 << 15)
 247
 248 /* Unsolicited response control */
 249 #define AC_UNSOL_TAG                    (0x3f<<0)
 250 #define AC_UNSOL_ENABLED                (1<<7)
 251 #define AC_USRSP_EN                     AC_UNSOL_ENABLED
 252
 253 /* Unsolicited responses */
 254 #define AC_UNSOL_RES_TAG                (0x3f<<26)
 255 #define AC_UNSOL_RES_TAG_SHIFT          26
 256 #define AC_UNSOL_RES_SUBTAG             (0x1f<<21)
 257 #define AC_UNSOL_RES_SUBTAG_SHIFT       21
 258 #define AC_UNSOL_RES_ELDV               (1<<1)  /* ELD Data valid (for HDMI) */
 259 #define AC_UNSOL_RES_PD                 (1<<0)  /* pinsense detect */
 260 #define AC_UNSOL_RES_CP_STATE           (1<<1)  /* content protection */
 261 #define AC_UNSOL_RES_CP_READY           (1<<0)  /* content protection */
 262
 263 /* Pin widget capabilies */
 264 #define AC_PINCAP_IMP_SENSE             (1<<0)  /* impedance sense capable */
 265 #define AC_PINCAP_TRIG_REQ              (1<<1)  /* trigger required */
 266 #define AC_PINCAP_PRES_DETECT           (1<<2)  /* presence detect capable */
 267 #define AC_PINCAP_HP_DRV                (1<<3)  /* headphone drive capable */
 268 #define AC_PINCAP_OUT                   (1<<4)  /* output capable */
 269 #define AC_PINCAP_IN                    (1<<5)  /* input capable */
 270 #define AC_PINCAP_BALANCE               (1<<6)  /* balanced I/O capable */
 271 /* Note: This LR_SWAP pincap is defined in the Realtek ALC883 specification,
 272  *       but is marked reserved in the Intel HDA specification.
 273  */
 274 #define AC_PINCAP_LR_SWAP               (1<<7)  /* L/R swap */
 275 /* Note: The same bit as LR_SWAP is newly defined as HDMI capability
 276  *       in HD-audio specification
 277  */
 278 #define AC_PINCAP_HDMI                  (1<<7)  /* HDMI pin */
 279 #define AC_PINCAP_DP                    (1<<24) /* DisplayPort pin, can
 280                                                  * coexist with AC_PINCAP_HDMI
 281                                                  */
 282 #define AC_PINCAP_VREF                  (0x37<<8)
 283 #define AC_PINCAP_VREF_SHIFT            8
 284 #define AC_PINCAP_EAPD                  (1<<16) /* EAPD capable */
 285 #define AC_PINCAP_HBR                   (1<<27) /* High Bit Rate */
 286 /* Vref status (used in pin cap) */
 287 #define AC_PINCAP_VREF_HIZ              (1<<0)  /* Hi-Z */
 288 #define AC_PINCAP_VREF_50               (1<<1)  /* 50% */
 289 #define AC_PINCAP_VREF_GRD              (1<<2)  /* ground */
 290 #define AC_PINCAP_VREF_80               (1<<4)  /* 80% */
 291 #define AC_PINCAP_VREF_100              (1<<5)  /* 100% */
 292
 293 /* Amplifier capabilities */
 294 #define AC_AMPCAP_OFFSET                (0x7f<<0)  /* 0dB offset */
 295 #define AC_AMPCAP_OFFSET_SHIFT          0
 296 #define AC_AMPCAP_NUM_STEPS             (0x7f<<8)  /* number of steps */
 297 #define AC_AMPCAP_NUM_STEPS_SHIFT       8
 298 #define AC_AMPCAP_STEP_SIZE             (0x7f<<16) /* step size 0-32dB
 299                                                     * in 0.25dB
 300                                                     */
 301 #define AC_AMPCAP_STEP_SIZE_SHIFT       16
 302 #define AC_AMPCAP_MUTE                  (1<<31)    /* mute capable */
 303 #define AC_AMPCAP_MUTE_SHIFT            31
 304
 305 /* Connection list */
 306 #define AC_CLIST_LENGTH                 (0x7f<<0)
 307 #define AC_CLIST_LONG                   (1<<7)
 308
 309 /* Supported power status */
 310 #define AC_PWRST_D0SUP                  (1<<0)
 311 #define AC_PWRST_D1SUP                  (1<<1)
 312 #define AC_PWRST_D2SUP                  (1<<2)
 313 #define AC_PWRST_D3SUP                  (1<<3)
 314 #define AC_PWRST_D3COLDSUP              (1<<4)
 315 #define AC_PWRST_S3D3COLDSUP            (1<<29)
 316 #define AC_PWRST_CLKSTOP                (1<<30)
 317 #define AC_PWRST_EPSS                   (1U<<31)
 318
 319 /* Power state values */
 320 #define AC_PWRST_SETTING                (0xf<<0)
 321 #define AC_PWRST_ACTUAL                 (0xf<<4)
 322 #define AC_PWRST_ACTUAL_SHIFT           4
 323 #define AC_PWRST_D0                     0x00
 324 #define AC_PWRST_D1                     0x01
 325 #define AC_PWRST_D2                     0x02
 326 #define AC_PWRST_D3                     0x03
 327
 328 /* Processing capabilies */
 329 #define AC_PCAP_BENIGN                  (1<<0)
 330 #define AC_PCAP_NUM_COEF                (0xff<<8)
 331 #define AC_PCAP_NUM_COEF_SHIFT          8
 332
 333 /* Volume knobs capabilities */
 334 #define AC_KNBCAP_NUM_STEPS             (0x7f<<0)
 335 #define AC_KNBCAP_DELTA                 (1<<7)
 336
 337 /* HDMI LPCM capabilities */
 338 #define AC_LPCMCAP_48K_CP_CHNS          (0x0f<<0) /* max channels w/ CP-on */
 339 #define AC_LPCMCAP_48K_NO_CHNS          (0x0f<<4) /* max channels w/o CP-on */
 340 #define AC_LPCMCAP_48K_20BIT            (1<<8)  /* 20b bitrate supported */
 341 #define AC_LPCMCAP_48K_24BIT            (1<<9)  /* 24b bitrate supported */
 342 #define AC_LPCMCAP_96K_CP_CHNS          (0x0f<<10) /* max channels w/ CP-on */
 343 #define AC_LPCMCAP_96K_NO_CHNS          (0x0f<<14) /* max channels w/o CP-on */
 344 #define AC_LPCMCAP_96K_20BIT            (1<<18) /* 20b bitrate supported */
 345 #define AC_LPCMCAP_96K_24BIT            (1<<19) /* 24b bitrate supported */
 346 #define AC_LPCMCAP_192K_CP_CHNS         (0x0f<<20) /* max channels w/ CP-on */
 347 #define AC_LPCMCAP_192K_NO_CHNS         (0x0f<<24) /* max channels w/o CP-on */
 348 #define AC_LPCMCAP_192K_20BIT           (1<<28) /* 20b bitrate supported */
 349 #define AC_LPCMCAP_192K_24BIT           (1<<29) /* 24b bitrate supported */
 350 #define AC_LPCMCAP_44K                  (1<<30) /* 44.1kHz support */
 351 #define AC_LPCMCAP_44K_MS               (1<<31) /* 44.1kHz-multiplies support */
 352
 353 /*
 354  * Control Parameters
 355  */
 356
 357 /* Amp gain/mute */
 358 #define AC_AMP_MUTE                     (1<<7)
 359 #define AC_AMP_GAIN                     (0x7f)
 360 #define AC_AMP_GET_INDEX                (0xf<<0)
 361
 362 #define AC_AMP_GET_LEFT                 (1<<13)
 363 #define AC_AMP_GET_RIGHT                (0<<13)
 364 #define AC_AMP_GET_OUTPUT               (1<<15)
 365 #define AC_AMP_GET_INPUT                (0<<15)
 366
 367 #define AC_AMP_SET_INDEX                (0xf<<8)
 368 #define AC_AMP_SET_INDEX_SHIFT          8
 369 #define AC_AMP_SET_RIGHT                (1<<12)
 370 #define AC_AMP_SET_LEFT                 (1<<13)
 371 #define AC_AMP_SET_INPUT                (1<<14)
 372 #define AC_AMP_SET_OUTPUT               (1<<15)
 373
 374 /* DIGITAL1 bits */
 375 #define AC_DIG1_ENABLE                  (1<<0)
 376 #define AC_DIG1_V                       (1<<1)
 377 #define AC_DIG1_VCFG                    (1<<2)
 378 #define AC_DIG1_EMPHASIS                (1<<3)
 379 #define AC_DIG1_COPYRIGHT               (1<<4)
 380 #define AC_DIG1_NONAUDIO                (1<<5)
 381 #define AC_DIG1_PROFESSIONAL            (1<<6)
 382 #define AC_DIG1_LEVEL                   (1<<7)
 383
 384 /* DIGITAL2 bits */
 385 #define AC_DIG2_CC                      (0x7f<<0)
 386
 387 /* Pin widget control - 8bit */
 388 #define AC_PINCTL_EPT                   (0x3<<0)
 389 #define AC_PINCTL_EPT_NATIVE            0
 390 #define AC_PINCTL_EPT_HBR               3
 391 #define AC_PINCTL_VREFEN                (0x7<<0)
 392 #define AC_PINCTL_VREF_HIZ              0       /* Hi-Z */
 393 #define AC_PINCTL_VREF_50               1       /* 50% */
 394 #define AC_PINCTL_VREF_GRD              2       /* ground */
 395 #define AC_PINCTL_VREF_80               4       /* 80% */
 396 #define AC_PINCTL_VREF_100              5       /* 100% */
 397 #define AC_PINCTL_IN_EN                 (1<<5)
 398 #define AC_PINCTL_OUT_EN                (1<<6)
 399 #define AC_PINCTL_HP_EN                 (1<<7)
 400
 401 /* Pin sense - 32bit */
 402 #define AC_PINSENSE_IMPEDANCE_MASK      (0x7fffffff)
 403 #define AC_PINSENSE_PRESENCE            (1<<31)
 404 #define AC_PINSENSE_ELDV                (1<<30) /* ELD valid (HDMI) */
 405
 406 /* EAPD/BTL enable - 32bit */
 407 #define AC_EAPDBTL_BALANCED             (1<<0)
 408 #define AC_EAPDBTL_EAPD                 (1<<1)
 409 #define AC_EAPDBTL_LR_SWAP              (1<<2)
 410
 411 /* HDMI ELD data */
 412 #define AC_ELDD_ELD_VALID               (1<<31)
 413 #define AC_ELDD_ELD_DATA                0xff
 414
 415 /* HDMI DIP size */
 416 #define AC_DIPSIZE_ELD_BUF              (1<<3) /* ELD buf size of packet size */
 417 #define AC_DIPSIZE_PACK_IDX             (0x07<<0) /* packet index */
 418
 419 /* HDMI DIP index */
 420 #define AC_DIPIDX_PACK_IDX              (0x07<<5) /* packet idnex */
 421 #define AC_DIPIDX_BYTE_IDX              (0x1f<<0) /* byte index */
 422
 423 /* HDMI DIP xmit (transmit) control */
 424 #define AC_DIPXMIT_MASK                 (0x3<<6)
 425 #define AC_DIPXMIT_DISABLE              (0x0<<6) /* disable xmit */
 426 #define AC_DIPXMIT_ONCE                 (0x2<<6) /* xmit once then disable */
 427 #define AC_DIPXMIT_BEST                 (0x3<<6) /* best effort */
 428
 429 /* HDMI content protection (CP) control */
 430 #define AC_CPCTRL_CES                   (1<<9) /* current encryption state */
 431 #define AC_CPCTRL_READY                 (1<<8) /* ready bit */
 432 #define AC_CPCTRL_SUBTAG                (0x1f<<3) /* subtag for unsol-resp */
 433 #define AC_CPCTRL_STATE                 (3<<0) /* current CP request state */
 434
 435 /* Converter channel <-> HDMI slot mapping */
 436 #define AC_CVTMAP_HDMI_SLOT             (0xf<<0) /* HDMI slot number */
 437 #define AC_CVTMAP_CHAN                  (0xf<<4) /* converter channel number */
 438
 439 /* configuration default - 32bit */
 440 #define AC_DEFCFG_SEQUENCE              (0xf<<0)
 441 #define AC_DEFCFG_DEF_ASSOC             (0xf<<4)
 442 #define AC_DEFCFG_ASSOC_SHIFT           4
 443 #define AC_DEFCFG_MISC                  (0xf<<8)
 444 #define AC_DEFCFG_MISC_SHIFT            8
 445 #define AC_DEFCFG_MISC_NO_PRESENCE      (1<<0)
 446 #define AC_DEFCFG_COLOR                 (0xf<<12)
 447 #define AC_DEFCFG_COLOR_SHIFT           12
 448 #define AC_DEFCFG_CONN_TYPE             (0xf<<16)
 449 #define AC_DEFCFG_CONN_TYPE_SHIFT       16
 450 #define AC_DEFCFG_DEVICE                (0xf<<20)
 451 #define AC_DEFCFG_DEVICE_SHIFT          20
 452 #define AC_DEFCFG_LOCATION              (0x3f<<24)
 453 #define AC_DEFCFG_LOCATION_SHIFT        24
 454 #define AC_DEFCFG_PORT_CONN             (0x3<<30)
 455 #define AC_DEFCFG_PORT_CONN_SHIFT       30
 456
 457 /* device device types (0x0-0xf) */
 458 enum {
 459         AC_JACK_LINE_OUT,
 460         AC_JACK_SPEAKER,
 461         AC_JACK_HP_OUT,
 462         AC_JACK_CD,
 463         AC_JACK_SPDIF_OUT,
 464         AC_JACK_DIG_OTHER_OUT,
 465         AC_JACK_MODEM_LINE_SIDE,
 466         AC_JACK_MODEM_HAND_SIDE,
 467         AC_JACK_LINE_IN,
 468         AC_JACK_AUX,
 469         AC_JACK_MIC_IN,
 470         AC_JACK_TELEPHONY,
 471         AC_JACK_SPDIF_IN,
 472         AC_JACK_DIG_OTHER_IN,
 473         AC_JACK_OTHER = 0xf,
 474 };
 475
 476 /* jack connection types (0x0-0xf) */
 477 enum {
 478         AC_JACK_CONN_UNKNOWN,
 479         AC_JACK_CONN_1_8,
 480         AC_JACK_CONN_1_4,
 481         AC_JACK_CONN_ATAPI,
 482         AC_JACK_CONN_RCA,
 483         AC_JACK_CONN_OPTICAL,
 484         AC_JACK_CONN_OTHER_DIGITAL,
 485         AC_JACK_CONN_OTHER_ANALOG,
 486         AC_JACK_CONN_DIN,
 487         AC_JACK_CONN_XLR,
 488         AC_JACK_CONN_RJ11,
 489         AC_JACK_CONN_COMB,
 490         AC_JACK_CONN_OTHER = 0xf,
 491 };
 492
 493 /* jack colors (0x0-0xf) */
 494 enum {
 495         AC_JACK_COLOR_UNKNOWN,
 496         AC_JACK_COLOR_BLACK,
 497         AC_JACK_COLOR_GREY,
 498         AC_JACK_COLOR_BLUE,
 499         AC_JACK_COLOR_GREEN,
 500         AC_JACK_COLOR_RED,
 501         AC_JACK_COLOR_ORANGE,
 502         AC_JACK_COLOR_YELLOW,
 503         AC_JACK_COLOR_PURPLE,
 504         AC_JACK_COLOR_PINK,
 505         AC_JACK_COLOR_WHITE = 0xe,
 506         AC_JACK_COLOR_OTHER,
 507 };
 508
 509 /* Jack location (0x0-0x3f) */
 510 /* common case */
 511 enum {
 512         AC_JACK_LOC_NONE,
 513         AC_JACK_LOC_REAR,
 514         AC_JACK_LOC_FRONT,
 515         AC_JACK_LOC_LEFT,
 516         AC_JACK_LOC_RIGHT,
 517         AC_JACK_LOC_TOP,
 518         AC_JACK_LOC_BOTTOM,
 519 };
 520 /* bits 4-5 */
 521 enum {
 522         AC_JACK_LOC_EXTERNAL = 0x00,
 523         AC_JACK_LOC_INTERNAL = 0x10,
 524         AC_JACK_LOC_SEPARATE = 0x20,
 525         AC_JACK_LOC_OTHER    = 0x30,
 526 };
 527 enum {
 528         /* external on primary chasis */
 529         AC_JACK_LOC_REAR_PANEL = 0x07,
 530         AC_JACK_LOC_DRIVE_BAY,
 531         /* internal */
 532         AC_JACK_LOC_RISER = 0x17,
 533         AC_JACK_LOC_HDMI,
 534         AC_JACK_LOC_ATAPI,
 535         /* others */
 536         AC_JACK_LOC_MOBILE_IN = 0x37,
 537         AC_JACK_LOC_MOBILE_OUT,
 538 };
 539
 540 /* Port connectivity (0-3) */
 541 enum {
 542         AC_JACK_PORT_COMPLEX,
 543         AC_JACK_PORT_NONE,
 544         AC_JACK_PORT_FIXED,
 545         AC_JACK_PORT_BOTH,
 546 };
 547
 548 /* max. connections to a widget */
 549 #define HDA_MAX_CONNECTIONS     32
 550
 551 /* max. codec address */
 552 #define HDA_MAX_CODEC_ADDRESS   0x0f
 553
 554 /* max number of PCM devics per card */
 555 #define HDA_MAX_PCMS            10
 556
 557 /*
 558  * generic arrays
 559  */
 560 struct snd_array {
 561         unsigned int used;
 562         unsigned int alloced;
 563         unsigned int elem_size;
 564         unsigned int alloc_align;
 565         void *list;
 566 };
 567
 568 void *snd_array_new(struct snd_array *array);
 569 void snd_array_free(struct snd_array *array);
 570 static inline void snd_array_init(struct snd_array *array, unsigned int size,
 571                                   unsigned int align)
 572 {
 573         array->elem_size = size;
 574         array->alloc_align = align;
 575 }
 576
 577 static inline void *snd_array_elem(struct snd_array *array, unsigned int idx)
 578 {
 579         return array->list + idx * array->elem_size;
 580 }
 581
 582 static inline unsigned int snd_array_index(struct snd_array *array, void *ptr)
 583 {
 584         return (unsigned long)(ptr - array->list) / array->elem_size;
 585 }
 586
 587 /*
 588  * Structures
 589  */
 590
 591 struct hda_bus;
 592 struct hda_beep;
 593 struct hda_codec;
 594 struct hda_pcm;
 595 struct hda_pcm_stream;
 596 struct hda_bus_unsolicited;
 597
 598 /* NID type */
 599 typedef u16 hda_nid_t;
 600
 601 /* bus operators */
 602 struct hda_bus_ops {
 603         /* send a single command */
 604         int (*command)(struct hda_bus *bus, unsigned int cmd);
 605         /* get a response from the last command */
 606         unsigned int (*get_response)(struct hda_bus *bus, unsigned int addr);
 607         /* free the private data */
 608         void (*private_free)(struct hda_bus *);
 609         /* attach a PCM stream */
 610         int (*attach_pcm)(struct hda_bus *bus, struct hda_codec *codec,
 611                           struct hda_pcm *pcm);
 612         /* reset bus for retry verb */
 613         void (*bus_reset)(struct hda_bus *bus);
 614 #ifdef CONFIG_SND_HDA_POWER_SAVE
 615         /* notify power-up/down from codec to controller */
 616         void (*pm_notify)(struct hda_bus *bus);
 617 #endif
 618 };
 619
 620 /* template to pass to the bus constructor */
 621 struct hda_bus_template {
 622         void *private_data;
 623         struct pci_dev *pci;
 624         const char *modelname;
 625         int *power_save;
 626         struct hda_bus_ops ops;
 627 };
 628
 629 /*
 630  * codec bus
 631  *
 632  * each controller needs to creata a hda_bus to assign the accessor.
 633  * A hda_bus contains several codecs in the list codec_list.
 634  */
 635 struct hda_bus {
 636         struct snd_card *card;
 637
 638         /* copied from template */
 639         void *private_data;
 640         struct pci_dev *pci;
 641         const char *modelname;
 642         int *power_save;
 643         struct hda_bus_ops ops;
 644
 645         /* codec linked list */
 646         struct list_head codec_list;
 647         /* link caddr -> codec */
 648         struct hda_codec *caddr_tbl[HDA_MAX_CODEC_ADDRESS + 1];
 649
 650         struct mutex cmd_mutex;
 651         struct mutex prepare_mutex;
 652
 653         /* unsolicited event queue */
 654         struct hda_bus_unsolicited *unsol;
 655         char workq_name[16];
 656         struct workqueue_struct *workq; /* common workqueue for codecs */
 657
 658         /* assigned PCMs */
 659         DECLARE_BITMAP(pcm_dev_bits, SNDRV_PCM_DEVICES);
 660
 661         /* misc op flags */
 662         unsigned int needs_damn_long_delay :1;
 663         unsigned int allow_bus_reset:1; /* allow bus reset at fatal error */
 664         unsigned int sync_write:1;      /* sync after verb write */
 665         /* status for codec/controller */
 666         unsigned int shutdown :1;       /* being unloaded */
 667         unsigned int rirb_error:1;      /* error in codec communication */
 668         unsigned int response_reset:1;  /* controller was reset */
 669         unsigned int in_reset:1;        /* during reset operation */
 670         unsigned int power_keep_link_on:1; /* don't power off HDA link */
 671 };
 672
 673 /*
 674  * codec preset
 675  *
 676  * Known codecs have the patch to build and set up the controls/PCMs
 677  * better than the generic parser.
 678  */
 679 struct hda_codec_preset {
 680         unsigned int id;
 681         unsigned int mask;
 682         unsigned int subs;
 683         unsigned int subs_mask;
 684         unsigned int rev;
 685         hda_nid_t afg, mfg;
 686         const char *name;
 687         int (*patch)(struct hda_codec *codec);
 688 };
 689
 690 struct hda_codec_preset_list {
 691         const struct hda_codec_preset *preset;
 692         struct module *owner;
 693         struct list_head list;
 694 };
 695
 696 /* initial hook */
 697 int snd_hda_add_codec_preset(struct hda_codec_preset_list *preset);
 698 int snd_hda_delete_codec_preset(struct hda_codec_preset_list *preset);
 699
 700 /* ops set by the preset patch */
 701 struct hda_codec_ops {
 702         int (*build_controls)(struct hda_codec *codec);
 703         int (*build_pcms)(struct hda_codec *codec);
 704         int (*init)(struct hda_codec *codec);
 705         void (*free)(struct hda_codec *codec);
 706         void (*unsol_event)(struct hda_codec *codec, unsigned int res);
 707 #ifdef SND_HDA_NEEDS_RESUME
 708         int (*suspend)(struct hda_codec *codec, pm_message_t state);
 709         int (*resume)(struct hda_codec *codec);
 710 #endif
 711 #ifdef CONFIG_SND_HDA_POWER_SAVE
 712         int (*check_power_status)(struct hda_codec *codec, hda_nid_t nid);
 713 #endif
 714         void (*reboot_notify)(struct hda_codec *codec);
 715 };
 716
 717 /* record for amp information cache */
 718 struct hda_cache_head {
 719         u32 key;                /* hash key */
 720         u16 val;                /* assigned value */
 721         u16 next;               /* next link; -1 = terminal */
 722 };
 723
 724 struct hda_amp_info {
 725         struct hda_cache_head head;
 726         u32 amp_caps;           /* amp capabilities */
 727         u16 vol[2];             /* current volume & mute */
 728 };
 729
 730 struct hda_cache_rec {
 731         u16 hash[64];                   /* hash table for index */
 732         struct snd_array buf;           /* record entries */
 733 };
 734
 735 /* PCM callbacks */
 736 struct hda_pcm_ops {
 737         int (*open)(struct hda_pcm_stream *info, struct hda_codec *codec,
 738                     struct snd_pcm_substream *substream);
 739         int (*close)(struct hda_pcm_stream *info, struct hda_codec *codec,
 740                      struct snd_pcm_substream *substream);
 741         int (*prepare)(struct hda_pcm_stream *info, struct hda_codec *codec,
 742                        unsigned int stream_tag, unsigned int format,
 743                        struct snd_pcm_substream *substream);
 744         int (*cleanup)(struct hda_pcm_stream *info, struct hda_codec *codec,
 745                        struct snd_pcm_substream *substream);
 746 };
 747
 748 /* PCM information for each substream */
 749 struct hda_pcm_stream {
 750         unsigned int substreams;        /* number of substreams, 0 = not exist*/
 751         unsigned int channels_min;      /* min. number of channels */
 752         unsigned int channels_max;      /* max. number of channels */
 753         hda_nid_t nid;  /* default NID to query rates/formats/bps, or set up */
 754         u32 rates;      /* supported rates */
 755         u64 formats;    /* supported formats (SNDRV_PCM_FMTBIT_) */
 756         unsigned int maxbps;    /* supported max. bit per sample */
 757         struct hda_pcm_ops ops;
 758 };
 759
 760 /* PCM types */
 761 enum {
 762         HDA_PCM_TYPE_AUDIO,
 763         HDA_PCM_TYPE_SPDIF,
 764         HDA_PCM_TYPE_HDMI,
 765         HDA_PCM_TYPE_MODEM,
 766         HDA_PCM_NTYPES
 767 };
 768
 769 /* for PCM creation */
 770 struct hda_pcm {
 771         char *name;
 772         struct hda_pcm_stream stream[2];
 773         unsigned int pcm_type;  /* HDA_PCM_TYPE_XXX */
 774         int device;             /* device number to assign */
 775         struct snd_pcm *pcm;    /* assigned PCM instance */
 776 };
 777
 778 /* codec information */
 779 struct hda_codec {
 780         struct hda_bus *bus;
 781         unsigned int addr;      /* codec addr*/
 782         struct list_head list;  /* list point */
 783
 784         hda_nid_t afg;  /* AFG node id */
 785         hda_nid_t mfg;  /* MFG node id */
 786
 787         /* ids */
 788         u8 afg_function_id;
 789         u8 mfg_function_id;
 790         u8 afg_unsol;
 791         u8 mfg_unsol;
 792         u32 vendor_id;
 793         u32 subsystem_id;
 794         u32 revision_id;
 795
 796         /* detected preset */
 797         const struct hda_codec_preset *preset;
 798         struct module *owner;
 799         const char *vendor_name;        /* codec vendor name */
 800         const char *chip_name;          /* codec chip name */
 801         const char *modelname;  /* model name for preset */
 802
 803         /* set by patch */
 804         struct hda_codec_ops patch_ops;
 805
 806         /* PCM to create, set by patch_ops.build_pcms callback */
 807         unsigned int num_pcms;
 808         struct hda_pcm *pcm_info;
 809
 810         /* codec specific info */
 811         void *spec;
 812
 813         /* beep device */
 814         struct hda_beep *beep;
 815         unsigned int beep_mode;
 816
 817         /* widget capabilities cache */
 818         unsigned int num_nodes;
 819         hda_nid_t start_nid;
 820         u32 *wcaps;
 821
 822         struct snd_array mixers;        /* list of assigned mixer elements */
 823         struct snd_array nids;          /* list of mapped mixer elements */
 824
 825         struct hda_cache_rec amp_cache; /* cache for amp access */
 826         struct hda_cache_rec cmd_cache; /* cache for other commands */
 827
 828         struct mutex spdif_mutex;
 829         struct mutex control_mutex;
 830         unsigned int spdif_status;      /* IEC958 status bits */
 831         unsigned short spdif_ctls;      /* SPDIF control bits */
 832         unsigned int spdif_in_enable;   /* SPDIF input enable? */
 833         hda_nid_t *slave_dig_outs; /* optional digital out slave widgets */
 834         struct snd_array init_pins;     /* initial (BIOS) pin configurations */
 835         struct snd_array driver_pins;   /* pin configs set by codec parser */
 836         struct snd_array cvt_setups;    /* audio convert setups */
 837
 838 #ifdef CONFIG_SND_HDA_HWDEP
 839         struct snd_hwdep *hwdep;        /* assigned hwdep device */
 840         struct snd_array init_verbs;    /* additional init verbs */
 841         struct snd_array hints;         /* additional hints */
 842         struct snd_array user_pins;     /* default pin configs to override */
 843 #endif
 844
 845         /* misc flags */
 846         unsigned int spdif_status_reset :1; /* needs to toggle SPDIF for each
 847                                              * status change
 848                                              * (e.g. Realtek codecs)
 849                                              */
 850         unsigned int pin_amp_workaround:1; /* pin out-amp takes index
 851                                             * (e.g. Conexant codecs)
 852                                             */
 853         unsigned int pins_shutup:1;     /* pins are shut up */
 854         unsigned int no_trigger_sense:1; /* don't trigger at pin-sensing */
 855 #ifdef CONFIG_SND_HDA_POWER_SAVE
 856         unsigned int power_on :1;       /* current (global) power-state */
 857         unsigned int power_transition :1; /* power-state in transition */
 858         int power_count;        /* current (global) power refcount */
 859         struct delayed_work power_work; /* delayed task for powerdown */
 860         unsigned long power_on_acct;
 861         unsigned long power_off_acct;
 862         unsigned long power_jiffies;
 863 #endif
 864
 865         /* codec-specific additional proc output */
 866         void (*proc_widget_hook)(struct snd_info_buffer *buffer,
 867                                  struct hda_codec *codec, hda_nid_t nid);
 868 };
 869
 870 /* direction */
 871 enum {
 872         HDA_INPUT, HDA_OUTPUT
 873 };
 874
 875
 876 /*
 877  * constructors
 878  */
 879 int snd_hda_bus_new(struct snd_card *card, const struct hda_bus_template *temp,
 880                     struct hda_bus **busp);
 881 int snd_hda_codec_new(struct hda_bus *bus, unsigned int codec_addr,
 882                       struct hda_codec **codecp);
 883 int snd_hda_codec_configure(struct hda_codec *codec);
 884
 885 /*
 886  * low level functions
 887  */
 888 unsigned int snd_hda_codec_read(struct hda_codec *codec, hda_nid_t nid,
 889                                 int direct,
 890                                 unsigned int verb, unsigned int parm);
 891 int snd_hda_codec_write(struct hda_codec *codec, hda_nid_t nid, int direct,
 892                         unsigned int verb, unsigned int parm);
 893 #define snd_hda_param_read(codec, nid, param) \
 894         snd_hda_codec_read(codec, nid, 0, AC_VERB_PARAMETERS, param)
 895 int snd_hda_get_sub_nodes(struct hda_codec *codec, hda_nid_t nid,
 896                           hda_nid_t *start_id);
 897 int snd_hda_get_connections(struct hda_codec *codec, hda_nid_t nid,
 898                             hda_nid_t *conn_list, int max_conns);
 899
 900 struct hda_verb {
 901         hda_nid_t nid;
 902         u32 verb;
 903         u32 param;
 904 };
 905
 906 void snd_hda_sequence_write(struct hda_codec *codec,
 907                             const struct hda_verb *seq);
 908
 909 /* unsolicited event */
 910 int snd_hda_queue_unsol_event(struct hda_bus *bus, u32 res, u32 res_ex);
 911
 912 /* cached write */
 913 #ifdef SND_HDA_NEEDS_RESUME
 914 int snd_hda_codec_write_cache(struct hda_codec *codec, hda_nid_t nid,
 915                               int direct, unsigned int verb, unsigned int parm);
 916 void snd_hda_sequence_write_cache(struct hda_codec *codec,
 917                                   const struct hda_verb *seq);
 918 int snd_hda_codec_update_cache(struct hda_codec *codec, hda_nid_t nid,
 919                               int direct, unsigned int verb, unsigned int parm);
 920 void snd_hda_codec_resume_cache(struct hda_codec *codec);
 921 #else
 922 #define snd_hda_codec_write_cache       snd_hda_codec_write
 923 #define snd_hda_codec_update_cache      snd_hda_codec_write
 924 #define snd_hda_sequence_write_cache    snd_hda_sequence_write
 925 #endif
 926
 927 /* the struct for codec->pin_configs */
 928 struct hda_pincfg {
 929         hda_nid_t nid;
 930         unsigned char ctrl;     /* current pin control value */
 931         unsigned char pad;      /* reserved */
 932         unsigned int cfg;       /* default configuration */
 933 };
 934
 935 unsigned int snd_hda_codec_get_pincfg(struct hda_codec *codec, hda_nid_t nid);
 936 int snd_hda_codec_set_pincfg(struct hda_codec *codec, hda_nid_t nid,
 937                              unsigned int cfg);
 938 int snd_hda_add_pincfg(struct hda_codec *codec, struct snd_array *list,
 939                        hda_nid_t nid, unsigned int cfg); /* for hwdep */
 940 void snd_hda_shutup_pins(struct hda_codec *codec);
 941
 942 /*
 943  * Mixer
 944  */
 945 int snd_hda_build_controls(struct hda_bus *bus);
 946 int snd_hda_codec_build_controls(struct hda_codec *codec);
 947
 948 /*
 949  * PCM
 950  */
 951 int snd_hda_build_pcms(struct hda_bus *bus);
 952 int snd_hda_codec_build_pcms(struct hda_codec *codec);
 953
 954 int snd_hda_codec_prepare(struct hda_codec *codec,
 955                           struct hda_pcm_stream *hinfo,
 956                           unsigned int stream,
 957                           unsigned int format,
 958                           struct snd_pcm_substream *substream);
 959 void snd_hda_codec_cleanup(struct hda_codec *codec,
 960                            struct hda_pcm_stream *hinfo,
 961                            struct snd_pcm_substream *substream);
 962
 963 void snd_hda_codec_setup_stream(struct hda_codec *codec, hda_nid_t nid,
 964                                 u32 stream_tag,
 965                                 int channel_id, int format);
 966 void __snd_hda_codec_cleanup_stream(struct hda_codec *codec, hda_nid_t nid,
 967                                     int do_now);
 968 #define snd_hda_codec_cleanup_stream(codec, nid) \
 969         __snd_hda_codec_cleanup_stream(codec, nid, 0)
 970 unsigned int snd_hda_calc_stream_format(unsigned int rate,
 971                                         unsigned int channels,
 972                                         unsigned int format,
 973                                         unsigned int maxbps,
 974                                         unsigned short spdif_ctls);
 975 int snd_hda_is_supported_format(struct hda_codec *codec, hda_nid_t nid,
 976                                 unsigned int format);
 977
 978 /*
 979  * Misc
 980  */
 981 void snd_hda_get_codec_name(struct hda_codec *codec, char *name, int namelen);
 982 void snd_hda_bus_reboot_notify(struct hda_bus *bus);
 983
 984 /*
 985  * power management
 986  */
 987 #ifdef CONFIG_PM
 988 int snd_hda_suspend(struct hda_bus *bus);
 989 int snd_hda_resume(struct hda_bus *bus);
 990 #endif
 991
 992 /*
 993  * get widget information
 994  */
 995 const char *snd_hda_get_jack_connectivity(u32 cfg);
 996 const char *snd_hda_get_jack_type(u32 cfg);
 997 const char *snd_hda_get_jack_location(u32 cfg);
 998
 999 /*
1000  * power saving
1001  */
1002 #ifdef CONFIG_SND_HDA_POWER_SAVE
1003 void snd_hda_power_up(struct hda_codec *codec);
1004 void snd_hda_power_down(struct hda_codec *codec);
1005 #define snd_hda_codec_needs_resume(codec) codec->power_count
1006 void snd_hda_update_power_acct(struct hda_codec *codec);
1007 #else
1008 static inline void snd_hda_power_up(struct hda_codec *codec) {}
1009 static inline void snd_hda_power_down(struct hda_codec *codec) {}
1010 #define snd_hda_codec_needs_resume(codec) 1
1011 #endif
1012
1013 #ifdef CONFIG_SND_HDA_PATCH_LOADER
1014 /*
1015  * patch firmware
1016  */
1017 int snd_hda_load_patch(struct hda_bus *bus, const char *patch);
1018 #endif
1019
1020 /*
1021  * Codec modularization
1022  */
1023
1024 /* Export symbols only for communication with codec drivers;
1025  * When built in kernel, all HD-audio drivers are supposed to be statically
1026  * linked to the kernel.  Thus, the symbols don't have to (or shouldn't) be
1027  * exported unless it's built as a module.
1028  */
1029 #ifdef MODULE
1030 #define EXPORT_SYMBOL_HDA(sym) EXPORT_SYMBOL_GPL(sym)
1031 #else
1032 #define EXPORT_SYMBOL_HDA(sym)
1033 #endif
1034
1035 #endif /* __SOUND_HDA_CODEC_H */