/*
 * Universal Interface for Intel High Definition Audio Codec
 *
 * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
 *
 *  This program is free software; you can redistribute it and/or modify it
 *  under the terms of the GNU General Public License as published by the Free
 *  Software Foundation; either version 2 of the License, or (at your option)
 *  any later version.
 *
 *  This program is distributed in the hope that it will be useful, but WITHOUT
 *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 *  more details.
 *
 *  You should have received a copy of the GNU General Public License along with
 *  this program; if not, write to the Free Software Foundation, Inc., 59
 *  Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */

#ifndef __SOUND_HDA_CODEC_H
#define __SOUND_HDA_CODEC_H

#include <sound/info.h>
#include <sound/control.h>
#include <sound/pcm.h>
#include <sound/hwdep.h>

/*
 * nodes
 */
#define AC_NODE_ROOT            0x00

/*
 * function group types
 */
enum {
        AC_GRP_AUDIO_FUNCTION = 0x01,
        AC_GRP_MODEM_FUNCTION = 0x02,
};
        
/*
 * widget types
 */
enum {
        AC_WID_AUD_OUT,         /* Audio Out */
        AC_WID_AUD_IN,          /* Audio In */
        AC_WID_AUD_MIX,         /* Audio Mixer */
        AC_WID_AUD_SEL,         /* Audio Selector */
        AC_WID_PIN,             /* Pin Complex */
        AC_WID_POWER,           /* Power */
        AC_WID_VOL_KNB,         /* Volume Knob */
        AC_WID_BEEP,            /* Beep Generator */
        AC_WID_VENDOR = 0x0f    /* Vendor specific */
};

/*
 * GET verbs
 */
#define AC_VERB_GET_STREAM_FORMAT               0x0a00
#define AC_VERB_GET_AMP_GAIN_MUTE               0x0b00
#define AC_VERB_GET_PROC_COEF                   0x0c00
#define AC_VERB_GET_COEF_INDEX                  0x0d00
#define AC_VERB_PARAMETERS                      0x0f00
#define AC_VERB_GET_CONNECT_SEL                 0x0f01
#define AC_VERB_GET_CONNECT_LIST                0x0f02
#define AC_VERB_GET_PROC_STATE                  0x0f03
#define AC_VERB_GET_SDI_SELECT                  0x0f04
#define AC_VERB_GET_POWER_STATE                 0x0f05
#define AC_VERB_GET_CONV                        0x0f06
#define AC_VERB_GET_PIN_WIDGET_CONTROL          0x0f07
#define AC_VERB_GET_UNSOLICITED_RESPONSE        0x0f08
#define AC_VERB_GET_PIN_SENSE                   0x0f09
#define AC_VERB_GET_BEEP_CONTROL                0x0f0a
#define AC_VERB_GET_EAPD_BTLENABLE              0x0f0c
#define AC_VERB_GET_DIGI_CONVERT_1              0x0f0d
#define AC_VERB_GET_DIGI_CONVERT_2              0x0f0e /* unused */
#define AC_VERB_GET_VOLUME_KNOB_CONTROL         0x0f0f
/* f10-f1a: GPIO */
#define AC_VERB_GET_GPIO_DATA                   0x0f15
#define AC_VERB_GET_GPIO_MASK                   0x0f16
#define AC_VERB_GET_GPIO_DIRECTION              0x0f17
#define AC_VERB_GET_GPIO_WAKE_MASK              0x0f18
#define AC_VERB_GET_GPIO_UNSOLICITED_RSP_MASK   0x0f19
#define AC_VERB_GET_GPIO_STICKY_MASK            0x0f1a
#define AC_VERB_GET_CONFIG_DEFAULT              0x0f1c
/* f20: AFG/MFG */
#define AC_VERB_GET_SUBSYSTEM_ID                0x0f20
#define AC_VERB_GET_CVT_CHAN_COUNT              0x0f2d
#define AC_VERB_GET_HDMI_DIP_SIZE               0x0f2e
#define AC_VERB_GET_HDMI_ELDD                   0x0f2f
#define AC_VERB_GET_HDMI_DIP_INDEX              0x0f30
#define AC_VERB_GET_HDMI_DIP_DATA               0x0f31
#define AC_VERB_GET_HDMI_DIP_XMIT               0x0f32
#define AC_VERB_GET_HDMI_CP_CTRL                0x0f33
#define AC_VERB_GET_HDMI_CHAN_SLOT              0x0f34

/*
 * SET verbs
 */
#define AC_VERB_SET_STREAM_FORMAT               0x200
#define AC_VERB_SET_AMP_GAIN_MUTE               0x300
#define AC_VERB_SET_PROC_COEF                   0x400
#define AC_VERB_SET_COEF_INDEX                  0x500
#define AC_VERB_SET_CONNECT_SEL                 0x701
#define AC_VERB_SET_PROC_STATE                  0x703
#define AC_VERB_SET_SDI_SELECT                  0x704
#define AC_VERB_SET_POWER_STATE                 0x705
#define AC_VERB_SET_CHANNEL_STREAMID            0x706
#define AC_VERB_SET_PIN_WIDGET_CONTROL          0x707
#define AC_VERB_SET_UNSOLICITED_ENABLE          0x708
#define AC_VERB_SET_PIN_SENSE                   0x709
#define AC_VERB_SET_BEEP_CONTROL                0x70a
#define AC_VERB_SET_EAPD_BTLENABLE              0x70c
#define AC_VERB_SET_DIGI_CONVERT_1              0x70d
#define AC_VERB_SET_DIGI_CONVERT_2              0x70e
#define AC_VERB_SET_VOLUME_KNOB_CONTROL         0x70f
#define AC_VERB_SET_GPIO_DATA                   0x715
#define AC_VERB_SET_GPIO_MASK                   0x716
#define AC_VERB_SET_GPIO_DIRECTION              0x717
#define AC_VERB_SET_GPIO_WAKE_MASK              0x718
#define AC_VERB_SET_GPIO_UNSOLICITED_RSP_MASK   0x719
#define AC_VERB_SET_GPIO_STICKY_MASK            0x71a
#define AC_VERB_SET_CONFIG_DEFAULT_BYTES_0      0x71c
#define AC_VERB_SET_CONFIG_DEFAULT_BYTES_1      0x71d
#define AC_VERB_SET_CONFIG_DEFAULT_BYTES_2      0x71e
#define AC_VERB_SET_CONFIG_DEFAULT_BYTES_3      0x71f
#define AC_VERB_SET_EAPD                                0x788
#define AC_VERB_SET_CODEC_RESET                 0x7ff
#define AC_VERB_SET_CVT_CHAN_COUNT              0x72d
#define AC_VERB_SET_HDMI_DIP_INDEX              0x730
#define AC_VERB_SET_HDMI_DIP_DATA               0x731
#define AC_VERB_SET_HDMI_DIP_XMIT               0x732
#define AC_VERB_SET_HDMI_CP_CTRL                0x733
#define AC_VERB_SET_HDMI_CHAN_SLOT              0x734

/*
 * Parameter IDs
 */
#define AC_PAR_VENDOR_ID                0x00
#define AC_PAR_SUBSYSTEM_ID             0x01
#define AC_PAR_REV_ID                   0x02
#define AC_PAR_NODE_COUNT               0x04
#define AC_PAR_FUNCTION_TYPE            0x05
#define AC_PAR_AUDIO_FG_CAP             0x08
#define AC_PAR_AUDIO_WIDGET_CAP         0x09
#define AC_PAR_PCM                      0x0a
#define AC_PAR_STREAM                   0x0b
#define AC_PAR_PIN_CAP                  0x0c
#define AC_PAR_AMP_IN_CAP               0x0d
#define AC_PAR_CONNLIST_LEN             0x0e
#define AC_PAR_POWER_STATE              0x0f
#define AC_PAR_PROC_CAP                 0x10
#define AC_PAR_GPIO_CAP                 0x11
#define AC_PAR_AMP_OUT_CAP              0x12
#define AC_PAR_VOL_KNB_CAP              0x13
#define AC_PAR_HDMI_LPCM_CAP            0x20

/*
 * AC_VERB_PARAMETERS results (32bit)
 */

/* Function Group Type */
#define AC_FGT_TYPE                     (0xff<<0)
#define AC_FGT_TYPE_SHIFT               0
#define AC_FGT_UNSOL_CAP                (1<<8)

/* Audio Function Group Capabilities */
#define AC_AFG_OUT_DELAY                (0xf<<0)
#define AC_AFG_IN_DELAY                 (0xf<<8)
#define AC_AFG_BEEP_GEN                 (1<<16)

/* Audio Widget Capabilities */
#define AC_WCAP_STEREO                  (1<<0)  /* stereo I/O */
#define AC_WCAP_IN_AMP                  (1<<1)  /* AMP-in present */
#define AC_WCAP_OUT_AMP                 (1<<2)  /* AMP-out present */
#define AC_WCAP_AMP_OVRD                (1<<3)  /* AMP-parameter override */
#define AC_WCAP_FORMAT_OVRD             (1<<4)  /* format override */
#define AC_WCAP_STRIPE                  (1<<5)  /* stripe */
#define AC_WCAP_PROC_WID                (1<<6)  /* Proc Widget */
#define AC_WCAP_UNSOL_CAP               (1<<7)  /* Unsol capable */
#define AC_WCAP_CONN_LIST               (1<<8)  /* connection list */
#define AC_WCAP_DIGITAL                 (1<<9)  /* digital I/O */
#define AC_WCAP_POWER                   (1<<10) /* power control */
#define AC_WCAP_LR_SWAP                 (1<<11) /* L/R swap */
#define AC_WCAP_CP_CAPS                 (1<<12) /* content protection */
#define AC_WCAP_CHAN_CNT_EXT            (7<<13) /* channel count ext */
#define AC_WCAP_DELAY                   (0xf<<16)
#define AC_WCAP_DELAY_SHIFT             16
#define AC_WCAP_TYPE                    (0xf<<20)
#define AC_WCAP_TYPE_SHIFT              20

/* supported PCM rates and bits */
#define AC_SUPPCM_RATES                 (0xfff << 0)
#define AC_SUPPCM_BITS_8                (1<<16)
#define AC_SUPPCM_BITS_16               (1<<17)
#define AC_SUPPCM_BITS_20               (1<<18)
#define AC_SUPPCM_BITS_24               (1<<19)
#define AC_SUPPCM_BITS_32               (1<<20)

/* supported PCM stream format */
#define AC_SUPFMT_PCM                   (1<<0)
#define AC_SUPFMT_FLOAT32               (1<<1)
#define AC_SUPFMT_AC3                   (1<<2)

/* GP I/O count */
#define AC_GPIO_IO_COUNT                (0xff<<0)
#define AC_GPIO_O_COUNT                 (0xff<<8)
#define AC_GPIO_O_COUNT_SHIFT           8
#define AC_GPIO_I_COUNT                 (0xff<<16)
#define AC_GPIO_I_COUNT_SHIFT           16
#define AC_GPIO_UNSOLICITED             (1<<30)
#define AC_GPIO_WAKE                    (1<<31)

/* Converter stream, channel */
#define AC_CONV_CHANNEL                 (0xf<<0)
#define AC_CONV_STREAM                  (0xf<<4)
#define AC_CONV_STREAM_SHIFT            4

/* Input converter SDI select */
#define AC_SDI_SELECT                   (0xf<<0)

/* stream format id */
#define AC_FMT_CHAN_SHIFT               0
#define AC_FMT_CHAN_MASK                (0x0f << 0)
#define AC_FMT_BITS_SHIFT               4
#define AC_FMT_BITS_MASK                (7 << 4)
#define AC_FMT_BITS_8                   (0 << 4)
#define AC_FMT_BITS_16                  (1 << 4)
#define AC_FMT_BITS_20                  (2 << 4)
#define AC_FMT_BITS_24                  (3 << 4)
#define AC_FMT_BITS_32                  (4 << 4)
#define AC_FMT_DIV_SHIFT                8
#define AC_FMT_DIV_MASK                 (7 << 8)
#define AC_FMT_MULT_SHIFT               11
#define AC_FMT_MULT_MASK                (7 << 11)
#define AC_FMT_BASE_SHIFT               14
#define AC_FMT_BASE_48K                 (0 << 14)
#define AC_FMT_BASE_44K                 (1 << 14)
#define AC_FMT_TYPE_SHIFT               15
#define AC_FMT_TYPE_PCM                 (0 << 15)
#define AC_FMT_TYPE_NON_PCM             (1 << 15)

/* Unsolicited response control */
#define AC_UNSOL_TAG                    (0x3f<<0)
#define AC_UNSOL_ENABLED                (1<<7)
#define AC_USRSP_EN                     AC_UNSOL_ENABLED

/* Unsolicited responses */
#define AC_UNSOL_RES_TAG                (0x3f<<26)
#define AC_UNSOL_RES_TAG_SHIFT          26
#define AC_UNSOL_RES_SUBTAG             (0x1f<<21)
#define AC_UNSOL_RES_SUBTAG_SHIFT       21
#define AC_UNSOL_RES_ELDV               (1<<1)  /* ELD Data valid (for HDMI) */
#define AC_UNSOL_RES_PD                 (1<<0)  /* pinsense detect */
#define AC_UNSOL_RES_CP_STATE           (1<<1)  /* content protection */
#define AC_UNSOL_RES_CP_READY           (1<<0)  /* content protection */

/* Pin widget capabilies */
#define AC_PINCAP_IMP_SENSE             (1<<0)  /* impedance sense capable */
#define AC_PINCAP_TRIG_REQ              (1<<1)  /* trigger required */
#define AC_PINCAP_PRES_DETECT           (1<<2)  /* presence detect capable */
#define AC_PINCAP_HP_DRV                (1<<3)  /* headphone drive capable */
#define AC_PINCAP_OUT                   (1<<4)  /* output capable */
#define AC_PINCAP_IN                    (1<<5)  /* input capable */
#define AC_PINCAP_BALANCE               (1<<6)  /* balanced I/O capable */
/* Note: This LR_SWAP pincap is defined in the Realtek ALC883 specification,
 *       but is marked reserved in the Intel HDA specification.
 */
#define AC_PINCAP_LR_SWAP               (1<<7)  /* L/R swap */
/* Note: The same bit as LR_SWAP is newly defined as HDMI capability
 *       in HD-audio specification
 */
#define AC_PINCAP_HDMI                  (1<<7)  /* HDMI pin */
#define AC_PINCAP_DP                    (1<<24) /* DisplayPort pin, can
                                                 * coexist with AC_PINCAP_HDMI
                                                 */
#define AC_PINCAP_VREF                  (0x37<<8)
#define AC_PINCAP_VREF_SHIFT            8
#define AC_PINCAP_EAPD                  (1<<16) /* EAPD capable */
#define AC_PINCAP_HBR                   (1<<27) /* High Bit Rate */
/* Vref status (used in pin cap) */
#define AC_PINCAP_VREF_HIZ              (1<<0)  /* Hi-Z */
#define AC_PINCAP_VREF_50               (1<<1)  /* 50% */
#define AC_PINCAP_VREF_GRD              (1<<2)  /* ground */
#define AC_PINCAP_VREF_80               (1<<4)  /* 80% */
#define AC_PINCAP_VREF_100              (1<<5)  /* 100% */

/* Amplifier capabilities */
#define AC_AMPCAP_OFFSET                (0x7f<<0)  /* 0dB offset */
#define AC_AMPCAP_OFFSET_SHIFT          0
#define AC_AMPCAP_NUM_STEPS             (0x7f<<8)  /* number of steps */
#define AC_AMPCAP_NUM_STEPS_SHIFT       8
#define AC_AMPCAP_STEP_SIZE             (0x7f<<16) /* step size 0-32dB
                                                    * in 0.25dB
                                                    */
#define AC_AMPCAP_STEP_SIZE_SHIFT       16
#define AC_AMPCAP_MUTE                  (1<<31)    /* mute capable */
#define AC_AMPCAP_MUTE_SHIFT            31

/* driver-specific amp-caps: using bits 24-30 */
#define AC_AMPCAP_MIN_MUTE              (1 << 30) /* min-volume = mute */

/* Connection list */
#define AC_CLIST_LENGTH                 (0x7f<<0)
#define AC_CLIST_LONG                   (1<<7)

/* Supported power status */
#define AC_PWRST_D0SUP                  (1<<0)
#define AC_PWRST_D1SUP                  (1<<1)
#define AC_PWRST_D2SUP                  (1<<2)
#define AC_PWRST_D3SUP                  (1<<3)
#define AC_PWRST_D3COLDSUP              (1<<4)
#define AC_PWRST_S3D3COLDSUP            (1<<29)
#define AC_PWRST_CLKSTOP                (1<<30)
#define AC_PWRST_EPSS                   (1U<<31)

/* Power state values */
#define AC_PWRST_SETTING                (0xf<<0)
#define AC_PWRST_ACTUAL                 (0xf<<4)
#define AC_PWRST_ACTUAL_SHIFT           4
#define AC_PWRST_D0                     0x00
#define AC_PWRST_D1                     0x01
#define AC_PWRST_D2                     0x02
#define AC_PWRST_D3                     0x03
#define AC_PWRST_ERROR                  (1<<8)
#define AC_PWRST_CLK_STOP_OK            (1<<9)
#define AC_PWRST_SETTING_RESET          (1<<10)

/* Processing capabilies */
#define AC_PCAP_BENIGN                  (1<<0)
#define AC_PCAP_NUM_COEF                (0xff<<8)
#define AC_PCAP_NUM_COEF_SHIFT          8

/* Volume knobs capabilities */
#define AC_KNBCAP_NUM_STEPS             (0x7f<<0)
#define AC_KNBCAP_DELTA                 (1<<7)

/* HDMI LPCM capabilities */
#define AC_LPCMCAP_48K_CP_CHNS          (0x0f<<0) /* max channels w/ CP-on */   
#define AC_LPCMCAP_48K_NO_CHNS          (0x0f<<4) /* max channels w/o CP-on */
#define AC_LPCMCAP_48K_20BIT            (1<<8)  /* 20b bitrate supported */
#define AC_LPCMCAP_48K_24BIT            (1<<9)  /* 24b bitrate supported */
#define AC_LPCMCAP_96K_CP_CHNS          (0x0f<<10) /* max channels w/ CP-on */  
#define AC_LPCMCAP_96K_NO_CHNS          (0x0f<<14) /* max channels w/o CP-on */
#define AC_LPCMCAP_96K_20BIT            (1<<18) /* 20b bitrate supported */
#define AC_LPCMCAP_96K_24BIT            (1<<19) /* 24b bitrate supported */
#define AC_LPCMCAP_192K_CP_CHNS         (0x0f<<20) /* max channels w/ CP-on */  
#define AC_LPCMCAP_192K_NO_CHNS         (0x0f<<24) /* max channels w/o CP-on */
#define AC_LPCMCAP_192K_20BIT           (1<<28) /* 20b bitrate supported */
#define AC_LPCMCAP_192K_24BIT           (1<<29) /* 24b bitrate supported */
#define AC_LPCMCAP_44K                  (1<<30) /* 44.1kHz support */
#define AC_LPCMCAP_44K_MS               (1<<31) /* 44.1kHz-multiplies support */

/*
 * Control Parameters
 */

/* Amp gain/mute */
#define AC_AMP_MUTE                     (1<<7)
#define AC_AMP_GAIN                     (0x7f)
#define AC_AMP_GET_INDEX                (0xf<<0)

#define AC_AMP_GET_LEFT                 (1<<13)
#define AC_AMP_GET_RIGHT                (0<<13)
#define AC_AMP_GET_OUTPUT               (1<<15)
#define AC_AMP_GET_INPUT                (0<<15)

#define AC_AMP_SET_INDEX                (0xf<<8)
#define AC_AMP_SET_INDEX_SHIFT          8
#define AC_AMP_SET_RIGHT                (1<<12)
#define AC_AMP_SET_LEFT                 (1<<13)
#define AC_AMP_SET_INPUT                (1<<14)
#define AC_AMP_SET_OUTPUT               (1<<15)

/* DIGITAL1 bits */
#define AC_DIG1_ENABLE                  (1<<0)
#define AC_DIG1_V                       (1<<1)
#define AC_DIG1_VCFG                    (1<<2)
#define AC_DIG1_EMPHASIS                (1<<3)
#define AC_DIG1_COPYRIGHT               (1<<4)
#define AC_DIG1_NONAUDIO                (1<<5)
#define AC_DIG1_PROFESSIONAL            (1<<6)
#define AC_DIG1_LEVEL                   (1<<7)

/* DIGITAL2 bits */
#define AC_DIG2_CC                      (0x7f<<0)

/* DIGITAL3 bits */
#define AC_DIG3_ICT                     (0xf<<0)
#define AC_DIG3_KAE                     (1<<7)

/* Pin widget control - 8bit */
#define AC_PINCTL_EPT                   (0x3<<0)
#define AC_PINCTL_EPT_NATIVE            0
#define AC_PINCTL_EPT_HBR               3
#define AC_PINCTL_VREFEN                (0x7<<0)
#define AC_PINCTL_VREF_HIZ              0       /* Hi-Z */
#define AC_PINCTL_VREF_50               1       /* 50% */
#define AC_PINCTL_VREF_GRD              2       /* ground */
#define AC_PINCTL_VREF_80               4       /* 80% */
#define AC_PINCTL_VREF_100              5       /* 100% */
#define AC_PINCTL_IN_EN                 (1<<5)
#define AC_PINCTL_OUT_EN                (1<<6)
#define AC_PINCTL_HP_EN                 (1<<7)

/* Pin sense - 32bit */
#define AC_PINSENSE_IMPEDANCE_MASK      (0x7fffffff)
#define AC_PINSENSE_PRESENCE            (1<<31)
#define AC_PINSENSE_ELDV                (1<<30) /* ELD valid (HDMI) */

/* EAPD/BTL enable - 32bit */
#define AC_EAPDBTL_BALANCED             (1<<0)
#define AC_EAPDBTL_EAPD                 (1<<1)
#define AC_EAPDBTL_LR_SWAP              (1<<2)

/* HDMI ELD data */
#define AC_ELDD_ELD_VALID               (1<<31)
#define AC_ELDD_ELD_DATA                0xff

/* HDMI DIP size */
#define AC_DIPSIZE_ELD_BUF              (1<<3) /* ELD buf size of packet size */
#define AC_DIPSIZE_PACK_IDX             (0x07<<0) /* packet index */

/* HDMI DIP index */
#define AC_DIPIDX_PACK_IDX              (0x07<<5) /* packet idnex */
#define AC_DIPIDX_BYTE_IDX              (0x1f<<0) /* byte index */

/* HDMI DIP xmit (transmit) control */
#define AC_DIPXMIT_MASK                 (0x3<<6)
#define AC_DIPXMIT_DISABLE              (0x0<<6) /* disable xmit */
#define AC_DIPXMIT_ONCE                 (0x2<<6) /* xmit once then disable */
#define AC_DIPXMIT_BEST                 (0x3<<6) /* best effort */

/* HDMI content protection (CP) control */
#define AC_CPCTRL_CES                   (1<<9) /* current encryption state */
#define AC_CPCTRL_READY                 (1<<8) /* ready bit */
#define AC_CPCTRL_SUBTAG                (0x1f<<3) /* subtag for unsol-resp */
#define AC_CPCTRL_STATE                 (3<<0) /* current CP request state */

/* Converter channel <-> HDMI slot mapping */
#define AC_CVTMAP_HDMI_SLOT             (0xf<<0) /* HDMI slot number */
#define AC_CVTMAP_CHAN                  (0xf<<4) /* converter channel number */

/* configuration default - 32bit */
#define AC_DEFCFG_SEQUENCE              (0xf<<0)
#define AC_DEFCFG_DEF_ASSOC             (0xf<<4)
#define AC_DEFCFG_ASSOC_SHIFT           4
#define AC_DEFCFG_MISC                  (0xf<<8)
#define AC_DEFCFG_MISC_SHIFT            8
#define AC_DEFCFG_MISC_NO_PRESENCE      (1<<0)
#define AC_DEFCFG_COLOR                 (0xf<<12)
#define AC_DEFCFG_COLOR_SHIFT           12
#define AC_DEFCFG_CONN_TYPE             (0xf<<16)
#define AC_DEFCFG_CONN_TYPE_SHIFT       16
#define AC_DEFCFG_DEVICE                (0xf<<20)
#define AC_DEFCFG_DEVICE_SHIFT          20
#define AC_DEFCFG_LOCATION              (0x3f<<24)
#define AC_DEFCFG_LOCATION_SHIFT        24
#define AC_DEFCFG_PORT_CONN             (0x3<<30)
#define AC_DEFCFG_PORT_CONN_SHIFT       30

/* device device types (0x0-0xf) */
enum {
        AC_JACK_LINE_OUT,
        AC_JACK_SPEAKER,
        AC_JACK_HP_OUT,
        AC_JACK_CD,
        AC_JACK_SPDIF_OUT,
        AC_JACK_DIG_OTHER_OUT,
        AC_JACK_MODEM_LINE_SIDE,
        AC_JACK_MODEM_HAND_SIDE,
        AC_JACK_LINE_IN,
        AC_JACK_AUX,
        AC_JACK_MIC_IN,
        AC_JACK_TELEPHONY,
        AC_JACK_SPDIF_IN,
        AC_JACK_DIG_OTHER_IN,
        AC_JACK_OTHER = 0xf,
};

/* jack connection types (0x0-0xf) */
enum {
        AC_JACK_CONN_UNKNOWN,
        AC_JACK_CONN_1_8,
        AC_JACK_CONN_1_4,
        AC_JACK_CONN_ATAPI,
        AC_JACK_CONN_RCA,
        AC_JACK_CONN_OPTICAL,
        AC_JACK_CONN_OTHER_DIGITAL,
        AC_JACK_CONN_OTHER_ANALOG,
        AC_JACK_CONN_DIN,
        AC_JACK_CONN_XLR,
        AC_JACK_CONN_RJ11,
        AC_JACK_CONN_COMB,
        AC_JACK_CONN_OTHER = 0xf,
};

/* jack colors (0x0-0xf) */
enum {
        AC_JACK_COLOR_UNKNOWN,
        AC_JACK_COLOR_BLACK,
        AC_JACK_COLOR_GREY,
        AC_JACK_COLOR_BLUE,
        AC_JACK_COLOR_GREEN,
        AC_JACK_COLOR_RED,
        AC_JACK_COLOR_ORANGE,
        AC_JACK_COLOR_YELLOW,
        AC_JACK_COLOR_PURPLE,
        AC_JACK_COLOR_PINK,
        AC_JACK_COLOR_WHITE = 0xe,
        AC_JACK_COLOR_OTHER,
};

/* Jack location (0x0-0x3f) */
/* common case */
enum {
        AC_JACK_LOC_NONE,
        AC_JACK_LOC_REAR,
        AC_JACK_LOC_FRONT,
        AC_JACK_LOC_LEFT,
        AC_JACK_LOC_RIGHT,
        AC_JACK_LOC_TOP,
        AC_JACK_LOC_BOTTOM,
};
/* bits 4-5 */
enum {
        AC_JACK_LOC_EXTERNAL = 0x00,
        AC_JACK_LOC_INTERNAL = 0x10,
        AC_JACK_LOC_SEPARATE = 0x20,
        AC_JACK_LOC_OTHER    = 0x30,
};
enum {
        /* external on primary chasis */
        AC_JACK_LOC_REAR_PANEL = 0x07,
        AC_JACK_LOC_DRIVE_BAY,
        /* internal */
        AC_JACK_LOC_RISER = 0x17,
        AC_JACK_LOC_HDMI,
        AC_JACK_LOC_ATAPI,
        /* others */
        AC_JACK_LOC_MOBILE_IN = 0x37,
        AC_JACK_LOC_MOBILE_OUT,
};

/* Port connectivity (0-3) */
enum {
        AC_JACK_PORT_COMPLEX,
        AC_JACK_PORT_NONE,
        AC_JACK_PORT_FIXED,
        AC_JACK_PORT_BOTH,
};

/* max. codec address */
#define HDA_MAX_CODEC_ADDRESS   0x0f

/*
 * generic arrays
 */
struct snd_array {
        unsigned int used;
        unsigned int alloced;
        unsigned int elem_size;
        unsigned int alloc_align;
        void *list;
};

void *snd_array_new(struct snd_array *array);
void snd_array_free(struct snd_array *array);
static inline void snd_array_init(struct snd_array *array, unsigned int size,
                                  unsigned int align)
{
        array->elem_size = size;
        array->alloc_align = align;
}

static inline void *snd_array_elem(struct snd_array *array, unsigned int idx)
{
        return array->list + idx * array->elem_size;
}

static inline unsigned int snd_array_index(struct snd_array *array, void *ptr)
{
        return (unsigned long)(ptr - array->list) / array->elem_size;
}

/*
 * Structures
 */

struct hda_bus;
struct hda_beep;
struct hda_codec;
struct hda_pcm;
struct hda_pcm_stream;
struct hda_bus_unsolicited;

/* NID type */
typedef u16 hda_nid_t;

/* bus operators */
struct hda_bus_ops {
        /* send a single command */
        int (*command)(struct hda_bus *bus, unsigned int cmd);
        /* get a response from the last command */
        unsigned int (*get_response)(struct hda_bus *bus, unsigned int addr);
        /* free the private data */
        void (*private_free)(struct hda_bus *);
        /* attach a PCM stream */
        int (*attach_pcm)(struct hda_bus *bus, struct hda_codec *codec,
                          struct hda_pcm *pcm);
        /* reset bus for retry verb */
        void (*bus_reset)(struct hda_bus *bus);
#ifdef CONFIG_PM
        /* notify power-up/down from codec to controller */
        void (*pm_notify)(struct hda_bus *bus, bool power_up);
#endif
#ifdef CONFIG_SND_HDA_DSP_LOADER
        /* prepare DSP transfer */
        int (*load_dsp_prepare)(struct hda_bus *bus, unsigned int format,
                                unsigned int byte_size,
                                struct snd_dma_buffer *bufp);
        /* start/stop DSP transfer */
        void (*load_dsp_trigger)(struct hda_bus *bus, bool start);
        /* clean up DSP transfer */
        void (*load_dsp_cleanup)(struct hda_bus *bus,
                                 struct snd_dma_buffer *dmab);
#endif
};

/* template to pass to the bus constructor */
struct hda_bus_template {
        void *private_data;
        struct pci_dev *pci;
        const char *modelname;
        int *power_save;
        struct hda_bus_ops ops;
};

/*
 * codec bus
 *
 * each controller needs to creata a hda_bus to assign the accessor.
 * A hda_bus contains several codecs in the list codec_list.
 */
struct hda_bus {
        struct snd_card *card;

        /* copied from template */
        void *private_data;
        struct pci_dev *pci;
        const char *modelname;
        int *power_save;
        struct hda_bus_ops ops;

        /* codec linked list */
        struct list_head codec_list;
        /* link caddr -> codec */
        struct hda_codec *caddr_tbl[HDA_MAX_CODEC_ADDRESS + 1];

        struct mutex cmd_mutex;
        struct mutex prepare_mutex;

        /* unsolicited event queue */
        struct hda_bus_unsolicited *unsol;
        char workq_name[16];
        struct workqueue_struct *workq; /* common workqueue for codecs */

        /* assigned PCMs */
        DECLARE_BITMAP(pcm_dev_bits, SNDRV_PCM_DEVICES);

        /* misc op flags */
        unsigned int needs_damn_long_delay :1;
        unsigned int allow_bus_reset:1; /* allow bus reset at fatal error */
        unsigned int sync_write:1;      /* sync after verb write */
        /* status for codec/controller */
        unsigned int shutdown :1;       /* being unloaded */
        unsigned int rirb_error:1;      /* error in codec communication */
        unsigned int response_reset:1;  /* controller was reset */
        unsigned int in_reset:1;        /* during reset operation */
        unsigned int power_keep_link_on:1; /* don't power off HDA link */
        unsigned int no_response_fallback:1; /* don't fallback at RIRB error */

        int primary_dig_out_type;       /* primary digital out PCM type */
};

/*
 * codec preset
 *
 * Known codecs have the patch to build and set up the controls/PCMs
 * better than the generic parser.
 */
struct hda_codec_preset {
        unsigned int id;
        unsigned int mask;
        unsigned int subs;
        unsigned int subs_mask;
        unsigned int rev;
        hda_nid_t afg, mfg;
        const char *name;
        int (*patch)(struct hda_codec *codec);
};
        
struct hda_codec_preset_list {
        const struct hda_codec_preset *preset;
        struct module *owner;
        struct list_head list;
};

/* initial hook */
int snd_hda_add_codec_preset(struct hda_codec_preset_list *preset);
int snd_hda_delete_codec_preset(struct hda_codec_preset_list *preset);

/* ops set by the preset patch */
struct hda_codec_ops {
        int (*build_controls)(struct hda_codec *codec);
        int (*build_pcms)(struct hda_codec *codec);
        int (*init)(struct hda_codec *codec);
        void (*free)(struct hda_codec *codec);
        void (*unsol_event)(struct hda_codec *codec, unsigned int res);
        void (*set_power_state)(struct hda_codec *codec, hda_nid_t fg,
                                unsigned int power_state);
#ifdef CONFIG_PM
        int (*suspend)(struct hda_codec *codec);
        int (*resume)(struct hda_codec *codec);
        int (*check_power_status)(struct hda_codec *codec, hda_nid_t nid);
#endif
        void (*reboot_notify)(struct hda_codec *codec);
};

/* record for amp information cache */
struct hda_cache_head {
        u32 key:31;             /* hash key */
        u32 dirty:1;
        u16 val;                /* assigned value */
        u16 next;
};

struct hda_amp_info {
        struct hda_cache_head head;
        u32 amp_caps;           /* amp capabilities */
        u16 vol[2];             /* current volume & mute */
};

struct hda_cache_rec {
        u16 hash[64];                   /* hash table for index */
        struct snd_array buf;           /* record entries */
};

/* PCM callbacks */
struct hda_pcm_ops {
        int (*open)(struct hda_pcm_stream *info, struct hda_codec *codec,
                    struct snd_pcm_substream *substream);
        int (*close)(struct hda_pcm_stream *info, struct hda_codec *codec,
                     struct snd_pcm_substream *substream);
        int (*prepare)(struct hda_pcm_stream *info, struct hda_codec *codec,
                       unsigned int stream_tag, unsigned int format,
                       struct snd_pcm_substream *substream);
        int (*cleanup)(struct hda_pcm_stream *info, struct hda_codec *codec,
                       struct snd_pcm_substream *substream);
        unsigned int (*get_delay)(struct hda_pcm_stream *info,
                                  struct hda_codec *codec,
                                  struct snd_pcm_substream *substream);
};

/* PCM information for each substream */
struct hda_pcm_stream {
        unsigned int substreams;        /* number of substreams, 0 = not exist*/
        unsigned int channels_min;      /* min. number of channels */
        unsigned int channels_max;      /* max. number of channels */
        hda_nid_t nid;  /* default NID to query rates/formats/bps, or set up */
        u32 rates;      /* supported rates */
        u64 formats;    /* supported formats (SNDRV_PCM_FMTBIT_) */
        unsigned int maxbps;    /* supported max. bit per sample */
        const struct snd_pcm_chmap_elem *chmap; /* chmap to override */
        struct hda_pcm_ops ops;
};

/* PCM types */
enum {
        HDA_PCM_TYPE_AUDIO,
        HDA_PCM_TYPE_SPDIF,
        HDA_PCM_TYPE_HDMI,
        HDA_PCM_TYPE_MODEM,
        HDA_PCM_NTYPES
};

/* for PCM creation */
struct hda_pcm {
        char *name;
        struct hda_pcm_stream stream[2];
        unsigned int pcm_type;  /* HDA_PCM_TYPE_XXX */
        int device;             /* device number to assign */
        struct snd_pcm *pcm;    /* assigned PCM instance */
        bool own_chmap;         /* codec driver provides own channel maps */
};

/* codec information */
struct hda_codec {
        struct hda_bus *bus;
        unsigned int addr;      /* codec addr*/
        struct list_head list;  /* list point */

        hda_nid_t afg;  /* AFG node id */
        hda_nid_t mfg;  /* MFG node id */

        /* ids */
        u8 afg_function_id;
        u8 mfg_function_id;
        u8 afg_unsol;
        u8 mfg_unsol;
        u32 vendor_id;
        u32 subsystem_id;
        u32 revision_id;

        /* detected preset */
        const struct hda_codec_preset *preset;
        struct module *owner;
        const char *vendor_name;        /* codec vendor name */
        const char *chip_name;          /* codec chip name */
        const char *modelname;  /* model name for preset */

        /* set by patch */
        struct hda_codec_ops patch_ops;

        /* PCM to create, set by patch_ops.build_pcms callback */
        unsigned int num_pcms;
        struct hda_pcm *pcm_info;

        /* codec specific info */
        void *spec;

        /* beep device */
        struct hda_beep *beep;
        unsigned int beep_mode;

        /* widget capabilities cache */
        unsigned int num_nodes;
        hda_nid_t start_nid;
        u32 *wcaps;

        struct snd_array mixers;        /* list of assigned mixer elements */
        struct snd_array nids;          /* list of mapped mixer elements */

        struct hda_cache_rec amp_cache; /* cache for amp access */
        struct hda_cache_rec cmd_cache; /* cache for other commands */

        struct list_head conn_list;     /* linked-list of connection-list */

        struct mutex spdif_mutex;
        struct mutex control_mutex;
        struct mutex hash_mutex;
        struct snd_array spdif_out;
        unsigned int spdif_in_enable;   /* SPDIF input enable? */
        const hda_nid_t *slave_dig_outs; /* optional digital out slave widgets */
        struct snd_array init_pins;     /* initial (BIOS) pin configurations */
        struct snd_array driver_pins;   /* pin configs set by codec parser */
        struct snd_array cvt_setups;    /* audio convert setups */

#ifdef CONFIG_SND_HDA_HWDEP
        struct mutex user_mutex;
        struct snd_hwdep *hwdep;        /* assigned hwdep device */
        struct snd_array init_verbs;    /* additional init verbs */
        struct snd_array hints;         /* additional hints */
        struct snd_array user_pins;     /* default pin configs to override */
#endif

        /* misc flags */
        unsigned int spdif_status_reset :1; /* needs to toggle SPDIF for each
                                             * status change
                                             * (e.g. Realtek codecs)
                                             */
        unsigned int pin_amp_workaround:1; /* pin out-amp takes index
                                            * (e.g. Conexant codecs)
                                            */
        unsigned int single_adc_amp:1; /* adc in-amp takes no index
                                        * (e.g. CX20549 codec)
                                        */
        unsigned int no_sticky_stream:1; /* no sticky-PCM stream assignment */
        unsigned int pins_shutup:1;     /* pins are shut up */
        unsigned int no_trigger_sense:1; /* don't trigger at pin-sensing */
        unsigned int no_jack_detect:1;  /* Machine has no jack-detection */
        unsigned int inv_eapd:1; /* broken h/w: inverted EAPD control */
        unsigned int inv_jack_detect:1; /* broken h/w: inverted detection bit */
        unsigned int pcm_format_first:1; /* PCM format must be set first */
        unsigned int epss:1;            /* supporting EPSS? */
        unsigned int cached_write:1;    /* write only to caches */
#ifdef CONFIG_PM
        unsigned int power_on :1;       /* current (global) power-state */
        unsigned int d3_stop_clk:1;     /* support D3 operation without BCLK */
        unsigned int pm_down_notified:1; /* PM notified to controller */
        unsigned int in_pm:1;           /* suspend/resume being performed */
        int power_transition;   /* power-state in transition */
        int power_count;        /* current (global) power refcount */
        struct delayed_work power_work; /* delayed task for powerdown */
        unsigned long power_on_acct;
        unsigned long power_off_acct;
        unsigned long power_jiffies;
        spinlock_t power_lock;
#endif

        /* filter the requested power state per nid */
        unsigned int (*power_filter)(struct hda_codec *codec, hda_nid_t nid,
                                     unsigned int power_state);

        /* codec-specific additional proc output */
        void (*proc_widget_hook)(struct snd_info_buffer *buffer,
                                 struct hda_codec *codec, hda_nid_t nid);

        /* jack detection */
        struct snd_array jacktbl;
        unsigned long jackpoll_interval; /* In jiffies. Zero means no poll, rely on unsol events */
        struct delayed_work jackpoll_work;

#ifdef CONFIG_SND_HDA_INPUT_JACK
        /* jack detection */
        struct snd_array jacks;
#endif

        /* fix-up list */
        int fixup_id;
        const struct hda_fixup *fixup_list;
        const char *fixup_name;

        /* additional init verbs */
        struct snd_array verbs;
};

/* direction */
enum {
        HDA_INPUT, HDA_OUTPUT
};

/* snd_hda_codec_read/write optional flags */
#define HDA_RW_NO_RESPONSE_FALLBACK     (1 << 0)

/*
 * constructors
 */
int snd_hda_bus_new(struct snd_card *card, const struct hda_bus_template *temp,
                    struct hda_bus **busp);
int snd_hda_codec_new(struct hda_bus *bus, unsigned int codec_addr,
                      struct hda_codec **codecp);
int snd_hda_codec_configure(struct hda_codec *codec);
int snd_hda_codec_update_widgets(struct hda_codec *codec);

/*
 * low level functions
 */
unsigned int snd_hda_codec_read(struct hda_codec *codec, hda_nid_t nid,
                                int flags,
                                unsigned int verb, unsigned int parm);
int snd_hda_codec_write(struct hda_codec *codec, hda_nid_t nid, int flags,
                        unsigned int verb, unsigned int parm);
#define snd_hda_param_read(codec, nid, param) \
        snd_hda_codec_read(codec, nid, 0, AC_VERB_PARAMETERS, param)
int snd_hda_get_sub_nodes(struct hda_codec *codec, hda_nid_t nid,
                          hda_nid_t *start_id);
int snd_hda_get_connections(struct hda_codec *codec, hda_nid_t nid,
                            hda_nid_t *conn_list, int max_conns);
static inline int
snd_hda_get_num_conns(struct hda_codec *codec, hda_nid_t nid)
{
        return snd_hda_get_connections(codec, nid, NULL, 0);
}
int snd_hda_get_num_raw_conns(struct hda_codec *codec, hda_nid_t nid);
int snd_hda_get_raw_connections(struct hda_codec *codec, hda_nid_t nid,
                            hda_nid_t *conn_list, int max_conns);
int snd_hda_get_conn_list(struct hda_codec *codec, hda_nid_t nid,
                          const hda_nid_t **listp);
int snd_hda_override_conn_list(struct hda_codec *codec, hda_nid_t nid, int nums,
                          const hda_nid_t *list);
int snd_hda_get_conn_index(struct hda_codec *codec, hda_nid_t mux,
                           hda_nid_t nid, int recursive);
int snd_hda_query_supported_pcm(struct hda_codec *codec, hda_nid_t nid,
                                u32 *ratesp, u64 *formatsp, unsigned int *bpsp);

struct hda_verb {
        hda_nid_t nid;
        u32 verb;
        u32 param;
};

void snd_hda_sequence_write(struct hda_codec *codec,
                            const struct hda_verb *seq);

/* unsolicited event */
int snd_hda_queue_unsol_event(struct hda_bus *bus, u32 res, u32 res_ex);

/* cached write */
int snd_hda_codec_write_cache(struct hda_codec *codec, hda_nid_t nid,
                              int flags, unsigned int verb, unsigned int parm);
void snd_hda_sequence_write_cache(struct hda_codec *codec,
                                  const struct hda_verb *seq);
int snd_hda_codec_update_cache(struct hda_codec *codec, hda_nid_t nid,
                              int flags, unsigned int verb, unsigned int parm);
void snd_hda_codec_resume_cache(struct hda_codec *codec);
/* both for cmd & amp caches */
void snd_hda_codec_flush_cache(struct hda_codec *codec);

/* the struct for codec->pin_configs */
struct hda_pincfg {
        hda_nid_t nid;
        unsigned char ctrl;     /* original pin control value */
        unsigned char target;   /* target pin control value */
        unsigned int cfg;       /* default configuration */
};

unsigned int snd_hda_codec_get_pincfg(struct hda_codec *codec, hda_nid_t nid);
int snd_hda_codec_set_pincfg(struct hda_codec *codec, hda_nid_t nid,
                             unsigned int cfg);
int snd_hda_add_pincfg(struct hda_codec *codec, struct snd_array *list,
                       hda_nid_t nid, unsigned int cfg); /* for hwdep */
void snd_hda_shutup_pins(struct hda_codec *codec);

/* SPDIF controls */
struct hda_spdif_out {
        hda_nid_t nid;          /* Converter nid values relate to */
        unsigned int status;    /* IEC958 status bits */
        unsigned short ctls;    /* SPDIF control bits */
};
struct hda_spdif_out *snd_hda_spdif_out_of_nid(struct hda_codec *codec,
                                               hda_nid_t nid);
void snd_hda_spdif_ctls_unassign(struct hda_codec *codec, int idx);
void snd_hda_spdif_ctls_assign(struct hda_codec *codec, int idx, hda_nid_t nid);

/*
 * Mixer
 */
int snd_hda_build_controls(struct hda_bus *bus);
int snd_hda_codec_build_controls(struct hda_codec *codec);

/*
 * PCM
 */
int snd_hda_build_pcms(struct hda_bus *bus);
int snd_hda_codec_build_pcms(struct hda_codec *codec);

int snd_hda_codec_prepare(struct hda_codec *codec,
                          struct hda_pcm_stream *hinfo,
                          unsigned int stream,
                          unsigned int format,
                          struct snd_pcm_substream *substream);
void snd_hda_codec_cleanup(struct hda_codec *codec,
                           struct hda_pcm_stream *hinfo,
                           struct snd_pcm_substream *substream);

void snd_hda_codec_setup_stream(struct hda_codec *codec, hda_nid_t nid,
                                u32 stream_tag,
                                int channel_id, int format);
void __snd_hda_codec_cleanup_stream(struct hda_codec *codec, hda_nid_t nid,
                                    int do_now);
#define snd_hda_codec_cleanup_stream(codec, nid) \
        __snd_hda_codec_cleanup_stream(codec, nid, 0)
unsigned int snd_hda_calc_stream_format(unsigned int rate,
                                        unsigned int channels,
                                        unsigned int format,
                                        unsigned int maxbps,
                                        unsigned short spdif_ctls);
int snd_hda_is_supported_format(struct hda_codec *codec, hda_nid_t nid,
                                unsigned int format);

extern const struct snd_pcm_chmap_elem snd_pcm_2_1_chmaps[];

/*
 * Misc
 */
void snd_hda_get_codec_name(struct hda_codec *codec, char *name, int namelen);
void snd_hda_bus_reboot_notify(struct hda_bus *bus);
void snd_hda_codec_set_power_to_all(struct hda_codec *codec, hda_nid_t fg,
                                    unsigned int power_state);

int snd_hda_lock_devices(struct hda_bus *bus);
void snd_hda_unlock_devices(struct hda_bus *bus);

/*
 * power management
 */
#ifdef CONFIG_PM
int snd_hda_suspend(struct hda_bus *bus);
int snd_hda_resume(struct hda_bus *bus);
#endif

static inline
int hda_call_check_power_status(struct hda_codec *codec, hda_nid_t nid)
{
#ifdef CONFIG_PM
        if (codec->patch_ops.check_power_status)
                return codec->patch_ops.check_power_status(codec, nid);
#endif
        return 0;
}

/*
 * get widget information
 */
const char *snd_hda_get_jack_connectivity(u32 cfg);
const char *snd_hda_get_jack_type(u32 cfg);
const char *snd_hda_get_jack_location(u32 cfg);

/*
 * power saving
 */
#ifdef CONFIG_PM
void snd_hda_power_save(struct hda_codec *codec, int delta, bool d3wait);
void snd_hda_update_power_acct(struct hda_codec *codec);
#else
static inline void snd_hda_power_save(struct hda_codec *codec, int delta,
                                      bool d3wait) {}
#endif

/**
 * snd_hda_power_up - Power-up the codec
 * @codec: HD-audio codec
 *
 * Increment the power-up counter and power up the hardware really when
 * not turned on yet.
 */
static inline void snd_hda_power_up(struct hda_codec *codec)
{
        snd_hda_power_save(codec, 1, false);
}

/**
 * snd_hda_power_up_d3wait - Power-up the codec after waiting for any pending
 *   D3 transition to complete.  This differs from snd_hda_power_up() when
 *   power_transition == -1.  snd_hda_power_up sees this case as a nop,
 *   snd_hda_power_up_d3wait waits for the D3 transition to complete then powers
 *   back up.
 * @codec: HD-audio codec
 *
 * Cancel any power down operation hapenning on the work queue, then power up.
 */
static inline void snd_hda_power_up_d3wait(struct hda_codec *codec)
{
        snd_hda_power_save(codec, 1, true);
}

/**
 * snd_hda_power_down - Power-down the codec
 * @codec: HD-audio codec
 *
 * Decrement the power-up counter and schedules the power-off work if
 * the counter rearches to zero.
 */
static inline void snd_hda_power_down(struct hda_codec *codec)
{
        snd_hda_power_save(codec, -1, false);
}

/**
 * snd_hda_power_sync - Synchronize the power-save status
 * @codec: HD-audio codec
 *
 * Synchronize the actual power state with the power account;
 * called when power_save parameter is changed
 */
static inline void snd_hda_power_sync(struct hda_codec *codec)
{
        snd_hda_power_save(codec, 0, false);
}

#ifdef CONFIG_SND_HDA_PATCH_LOADER
/*
 * patch firmware
 */
int snd_hda_load_patch(struct hda_bus *bus, size_t size, const void *buf);
#endif

#ifdef CONFIG_SND_HDA_DSP_LOADER
static inline int
snd_hda_codec_load_dsp_prepare(struct hda_codec *codec, unsigned int format,
                                unsigned int size,
                                struct snd_dma_buffer *bufp)
{
        return codec->bus->ops.load_dsp_prepare(codec->bus, format, size, bufp);
}
static inline void
snd_hda_codec_load_dsp_trigger(struct hda_codec *codec, bool start)
{
        return codec->bus->ops.load_dsp_trigger(codec->bus, start);
}
static inline void
snd_hda_codec_load_dsp_cleanup(struct hda_codec *codec,
                                struct snd_dma_buffer *dmab)
{
        return codec->bus->ops.load_dsp_cleanup(codec->bus, dmab);
}
#else
static inline int
snd_hda_codec_load_dsp_prepare(struct hda_codec *codec, unsigned int format,
                                unsigned int size,
                                struct snd_dma_buffer *bufp)
{
        return -ENOSYS;
}
static inline void
snd_hda_codec_load_dsp_trigger(struct hda_codec *codec, bool start) {}
static inline void
snd_hda_codec_load_dsp_cleanup(struct hda_codec *codec,
                                struct snd_dma_buffer *dmab) {}
#endif

/*
 * Codec modularization
 */

/* Export symbols only for communication with codec drivers;
 * When built in kernel, all HD-audio drivers are supposed to be statically
 * linked to the kernel.  Thus, the symbols don't have to (or shouldn't) be
 * exported unless it's built as a module.
 */
#ifdef MODULE
#define EXPORT_SYMBOL_HDA(sym) EXPORT_SYMBOL_GPL(sym)
#else
#define EXPORT_SYMBOL_HDA(sym)
#endif

#endif /* __SOUND_HDA_CODEC_H */