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#ifndef __SOUND_AC97_CODEC_H#define __SOUND_AC97_CODEC_H /* *  Copyright (c) by Jaroslav Kysela <perex@suse.cz> *  Universal interface for Audio Codec '97 * *  For more details look to AC '97 component specification revision 2.1 *  by Intel Corporation (http://developer.intel.com). * * *   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 * */ #include <linux/bitops.h>#include <linux/device.h>#include "pcm.h"#include "control.h"#include "info.h" /* *  AC'97 codec registers */ #define AC97_RESET		0x00	/* Reset */#define AC97_MASTER		0x02	/* Master Volume */#define AC97_HEADPHONE		0x04	/* Headphone Volume (optional) */#define AC97_MASTER_MONO	0x06	/* Master Volume Mono (optional) */#define AC97_MASTER_TONE	0x08	/* Master Tone (Bass & Treble) (optional) */#define AC97_PC_BEEP		0x0a	/* PC Beep Volume (optinal) */#define AC97_PHONE		0x0c	/* Phone Volume (optional) */#define AC97_MIC		0x0e	/* MIC Volume */#define AC97_LINE		0x10	/* Line In Volume */#define AC97_CD			0x12	/* CD Volume */#define AC97_VIDEO		0x14	/* Video Volume (optional) */#define AC97_AUX		0x16	/* AUX Volume (optional) */#define AC97_PCM		0x18	/* PCM Volume */#define AC97_REC_SEL		0x1a	/* Record Select */#define AC97_REC_GAIN		0x1c	/* Record Gain */#define AC97_REC_GAIN_MIC	0x1e	/* Record Gain MIC (optional) */#define AC97_GENERAL_PURPOSE	0x20	/* General Purpose (optional) */#define AC97_3D_CONTROL		0x22	/* 3D Control (optional) */#define AC97_INT_PAGING		0x24	/* Audio Interrupt & Paging (AC'97 2.3) */#define AC97_POWERDOWN		0x26	/* Powerdown control / status *//* range 0x28-0x3a - AUDIO AC'97 2.0 extensions */#define AC97_EXTENDED_ID	0x28	/* Extended Audio ID */#define AC97_EXTENDED_STATUS	0x2a	/* Extended Audio Status and Control */#define AC97_PCM_FRONT_DAC_RATE 0x2c	/* PCM Front DAC Rate */#define AC97_PCM_SURR_DAC_RATE	0x2e	/* PCM Surround DAC Rate */#define AC97_PCM_LFE_DAC_RATE	0x30	/* PCM LFE DAC Rate */#define AC97_PCM_LR_ADC_RATE	0x32	/* PCM LR ADC Rate */#define AC97_PCM_MIC_ADC_RATE	0x34	/* PCM MIC ADC Rate */#define AC97_CENTER_LFE_MASTER	0x36	/* Center + LFE Master Volume */#define AC97_SURROUND_MASTER	0x38	/* Surround (Rear) Master Volume */#define AC97_SPDIF		0x3a	/* S/PDIF control *//* range 0x3c-0x58 - MODEM */#define AC97_EXTENDED_MID	0x3c	/* Extended Modem ID */#define AC97_EXTENDED_MSTATUS	0x3e	/* Extended Modem Status and Control */#define AC97_LINE1_RATE		0x40	/* Line1 DAC/ADC Rate */#define AC97_LINE2_RATE		0x42	/* Line2 DAC/ADC Rate */#define AC97_HANDSET_RATE	0x44	/* Handset DAC/ADC Rate */#define AC97_LINE1_LEVEL	0x46	/* Line1 DAC/ADC Level */#define AC97_LINE2_LEVEL	0x48	/* Line2 DAC/ADC Level */#define AC97_HANDSET_LEVEL	0x4a	/* Handset DAC/ADC Level */#define AC97_GPIO_CFG		0x4c	/* GPIO Configuration */#define AC97_GPIO_POLARITY	0x4e	/* GPIO Pin Polarity/Type, 0=low, 1=high active */#define AC97_GPIO_STICKY	0x50	/* GPIO Pin Sticky, 0=not, 1=sticky */#define AC97_GPIO_WAKEUP	0x52	/* GPIO Pin Wakeup, 0=no int, 1=yes int */#define AC97_GPIO_STATUS	0x54	/* GPIO Pin Status, slot 12 */#define AC97_MISC_AFE		0x56	/* Miscellaneous Modem AFE Status and Control *//* range 0x5a-0x7b - Vendor Specific */#define AC97_VENDOR_ID1		0x7c	/* Vendor ID1 */#define AC97_VENDOR_ID2		0x7e	/* Vendor ID2 / revision *//* range 0x60-0x6f (page 1) - extended codec registers */#define AC97_CODEC_CLASS_REV	0x60	/* Codec Class/Revision */#define AC97_PCI_SVID		0x62	/* PCI Subsystem Vendor ID */#define AC97_PCI_SID		0x64	/* PCI Subsystem ID */#define AC97_FUNC_SELECT	0x66	/* Function Select */#define AC97_FUNC_INFO		0x68	/* Function Information */#define AC97_SENSE_INFO		0x6a	/* Sense Details */ /* slot allocation */#define AC97_SLOT_TAG		0#define AC97_SLOT_CMD_ADDR	1#define AC97_SLOT_CMD_DATA	2#define AC97_SLOT_PCM_LEFT	3#define AC97_SLOT_PCM_RIGHT	4#define AC97_SLOT_MODEM_LINE1	5#define AC97_SLOT_PCM_CENTER	6#define AC97_SLOT_MIC		6	/* input */#define AC97_SLOT_SPDIF_LEFT1	6#define AC97_SLOT_PCM_SLEFT	7	/* surround left */#define AC97_SLOT_PCM_LEFT_0	7	/* double rate operation */#define AC97_SLOT_SPDIF_LEFT	7#define AC97_SLOT_PCM_SRIGHT	8	/* surround right */#define AC97_SLOT_PCM_RIGHT_0	8	/* double rate operation */#define AC97_SLOT_SPDIF_RIGHT	8#define AC97_SLOT_LFE		9#define AC97_SLOT_SPDIF_RIGHT1	9#define AC97_SLOT_MODEM_LINE2	10#define AC97_SLOT_PCM_LEFT_1	10	/* double rate operation */#define AC97_SLOT_SPDIF_LEFT2	10#define AC97_SLOT_HANDSET	11	/* output */#define AC97_SLOT_PCM_RIGHT_1	11	/* double rate operation */#define AC97_SLOT_SPDIF_RIGHT2	11#define AC97_SLOT_MODEM_GPIO	12	/* modem GPIO */#define AC97_SLOT_PCM_CENTER_1	12	/* double rate operation */ /* basic capabilities (reset register) */#define AC97_BC_DEDICATED_MIC	0x0001	/* Dedicated Mic PCM In Channel */#define AC97_BC_RESERVED1	0x0002	/* Reserved (was Modem Line Codec support) */#define AC97_BC_BASS_TREBLE	0x0004	/* Bass & Treble Control */#define AC97_BC_SIM_STEREO	0x0008	/* Simulated stereo */#define AC97_BC_HEADPHONE	0x0010	/* Headphone Out Support */#define AC97_BC_LOUDNESS	0x0020	/* Loudness (bass boost) Support */#define AC97_BC_16BIT_DAC	0x0000	/* 16-bit DAC resolution */#define AC97_BC_18BIT_DAC	0x0040	/* 18-bit DAC resolution */#define AC97_BC_20BIT_DAC	0x0080	/* 20-bit DAC resolution */#define AC97_BC_DAC_MASK	0x00c0#define AC97_BC_16BIT_ADC	0x0000	/* 16-bit ADC resolution */#define AC97_BC_18BIT_ADC	0x0100	/* 18-bit ADC resolution */#define AC97_BC_20BIT_ADC	0x0200	/* 20-bit ADC resolution */#define AC97_BC_ADC_MASK	0x0300 /* general purpose */#define AC97_GP_DRSS_MASK	0x0c00	/* double rate slot select */#define AC97_GP_DRSS_1011	0x0000	/* LR(C) 10+11(+12) */#define AC97_GP_DRSS_78		0x0400	/* LR 7+8 */ /* extended audio ID bit defines */#define AC97_EI_VRA		0x0001	/* Variable bit rate supported */#define AC97_EI_DRA		0x0002	/* Double rate supported */#define AC97_EI_SPDIF		0x0004	/* S/PDIF out supported */#define AC97_EI_VRM		0x0008	/* Variable bit rate supported for MIC */#define AC97_EI_DACS_SLOT_MASK	0x0030	/* DACs slot assignment */#define AC97_EI_DACS_SLOT_SHIFT	4#define AC97_EI_CDAC		0x0040	/* PCM Center DAC available */#define AC97_EI_SDAC		0x0080	/* PCM Surround DACs available */#define AC97_EI_LDAC		0x0100	/* PCM LFE DAC available */#define AC97_EI_AMAP		0x0200	/* indicates optional slot/DAC mapping based on codec ID */#define AC97_EI_REV_MASK	0x0c00	/* AC'97 revision mask */#define AC97_EI_REV_22		0x0400	/* AC'97 revision 2.2 */#define AC97_EI_REV_23		0x0800	/* AC'97 revision 2.3 */#define AC97_EI_REV_SHIFT	10#define AC97_EI_ADDR_MASK	0xc000	/* physical codec ID (address) */#define AC97_EI_ADDR_SHIFT	14 /* extended audio status and control bit defines */#define AC97_EA_VRA		0x0001	/* Variable bit rate enable bit */#define AC97_EA_DRA		0x0002	/* Double-rate audio enable bit */#define AC97_EA_SPDIF		0x0004	/* S/PDIF out enable bit */#define AC97_EA_VRM		0x0008	/* Variable bit rate for MIC enable bit */#define AC97_EA_SPSA_SLOT_MASK	0x0030	/* Mask for slot assignment bits */#define AC97_EA_SPSA_SLOT_SHIFT 4#define AC97_EA_SPSA_3_4	0x0000	/* Slot assigned to 3 & 4 */#define AC97_EA_SPSA_7_8	0x0010	/* Slot assigned to 7 & 8 */#define AC97_EA_SPSA_6_9	0x0020	/* Slot assigned to 6 & 9 */#define AC97_EA_SPSA_10_11	0x0030	/* Slot assigned to 10 & 11 */#define AC97_EA_CDAC		0x0040	/* PCM Center DAC is ready (Read only) */#define AC97_EA_SDAC		0x0080	/* PCM Surround DACs are ready (Read only) */#define AC97_EA_LDAC		0x0100	/* PCM LFE DAC is ready (Read only) */#define AC97_EA_MDAC		0x0200	/* MIC ADC is ready (Read only) */#define AC97_EA_SPCV		0x0400	/* S/PDIF configuration valid (Read only) */#define AC97_EA_PRI		0x0800	/* Turns the PCM Center DAC off */#define AC97_EA_PRJ		0x1000	/* Turns the PCM Surround DACs off */#define AC97_EA_PRK		0x2000	/* Turns the PCM LFE DAC off */#define AC97_EA_PRL		0x4000	/* Turns the MIC ADC off */ /* S/PDIF control bit defines */#define AC97_SC_PRO		0x0001	/* Professional status */#define AC97_SC_NAUDIO		0x0002	/* Non audio stream */#define AC97_SC_COPY		0x0004	/* Copyright status */#define AC97_SC_PRE		0x0008	/* Preemphasis status */#define AC97_SC_CC_MASK		0x07f0	/* Category Code mask */#define AC97_SC_CC_SHIFT	4#define AC97_SC_L		0x0800	/* Generation Level status */#define AC97_SC_SPSR_MASK	0x3000	/* S/PDIF Sample Rate bits */#define AC97_SC_SPSR_SHIFT	12#define AC97_SC_SPSR_44K	0x0000	/* Use 44.1kHz Sample rate */#define AC97_SC_SPSR_48K	0x2000	/* Use 48kHz Sample rate */#define AC97_SC_SPSR_32K	0x3000	/* Use 32kHz Sample rate */#define AC97_SC_DRS		0x4000	/* Double Rate S/PDIF */#define AC97_SC_V		0x8000	/* Validity status */ /* Interrupt and Paging bit defines (AC'97 2.3) */#define AC97_PAGE_MASK		0x000f	/* Page Selector */#define AC97_PAGE_VENDOR	0	/* Vendor-specific registers */#define AC97_PAGE_1		1	/* Extended Codec Registers page 1 */#define AC97_INT_ENABLE		0x0800	/* Interrupt Enable */#define AC97_INT_SENSE		0x1000	/* Sense Cycle */#define AC97_INT_CAUSE_SENSE	0x2000	/* Sense Cycle Completed (RO) */#define AC97_INT_CAUSE_GPIO	0x4000	/* GPIO bits changed (RO) */#define AC97_INT_STATUS		0x8000	/* Interrupt Status */ /* extended modem ID bit defines */#define AC97_MEI_LINE1		0x0001	/* Line1 present */#define AC97_MEI_LINE2		0x0002	/* Line2 present */#define AC97_MEI_HANDSET	0x0004	/* Handset present */#define AC97_MEI_CID1		0x0008	/* caller ID decode for Line1 is supported */#define AC97_MEI_CID2		0x0010	/* caller ID decode for Line2 is supported */#define AC97_MEI_ADDR_MASK	0xc000	/* physical codec ID (address) */#define AC97_MEI_ADDR_SHIFT	14 /* extended modem status and control bit defines */#define AC97_MEA_GPIO		0x0001	/* GPIO is ready (ro) */#define AC97_MEA_MREF		0x0002	/* Vref is up to nominal level (ro) */#define AC97_MEA_ADC1		0x0004	/* ADC1 operational (ro) */#define AC97_MEA_DAC1		0x0008	/* DAC1 operational (ro) */#define AC97_MEA_ADC2		0x0010	/* ADC2 operational (ro) */#define AC97_MEA_DAC2		0x0020	/* DAC2 operational (ro) */#define AC97_MEA_HADC		0x0040	/* HADC operational (ro) */#define AC97_MEA_HDAC		0x0080	/* HDAC operational (ro) */#define AC97_MEA_PRA		0x0100	/* GPIO power down (high) */#define AC97_MEA_PRB		0x0200	/* reserved */#define AC97_MEA_PRC		0x0400	/* ADC1 power down (high) */#define AC97_MEA_PRD		0x0800	/* DAC1 power down (high) */#define AC97_MEA_PRE		0x1000	/* ADC2 power down (high) */#define AC97_MEA_PRF		0x2000	/* DAC2 power down (high) */#define AC97_MEA_PRG		0x4000	/* HADC power down (high) */#define AC97_MEA_PRH		0x8000	/* HDAC power down (high) */ /* modem gpio status defines */#define AC97_GPIO_LINE1_OH      0x0001  /* Off Hook Line1 */#define AC97_GPIO_LINE1_RI      0x0002  /* Ring Detect Line1 */#define AC97_GPIO_LINE1_CID     0x0004  /* Caller ID path enable Line1 */#define AC97_GPIO_LINE1_LCS     0x0008  /* Loop Current Sense Line1 */#define AC97_GPIO_LINE1_PULSE   0x0010  /* Opt./ Pulse Dial Line1 (out) */#define AC97_GPIO_LINE1_HL1R    0x0020  /* Opt./ Handset to Line1 relay control (out) */#define AC97_GPIO_LINE1_HOHD    0x0040  /* Opt./ Handset off hook detect Line1 (in) */#define AC97_GPIO_LINE12_AC     0x0080  /* Opt./ Int.bit 1 / Line1/2 AC (out) */#define AC97_GPIO_LINE12_DC     0x0100  /* Opt./ Int.bit 2 / Line1/2 DC (out) */#define AC97_GPIO_LINE12_RS     0x0200  /* Opt./ Int.bit 3 / Line1/2 RS (out) */#define AC97_GPIO_LINE2_OH      0x0400  /* Off Hook Line2 */#define AC97_GPIO_LINE2_RI      0x0800  /* Ring Detect Line2 */#define AC97_GPIO_LINE2_CID     0x1000  /* Caller ID path enable Line2 */#define AC97_GPIO_LINE2_LCS     0x2000  /* Loop Current Sense Line2 */#define AC97_GPIO_LINE2_PULSE   0x4000  /* Opt./ Pulse Dial Line2 (out) */#define AC97_GPIO_LINE2_HL1R    0x8000  /* Opt./ Handset to Line2 relay control (out) */ /* specific - SigmaTel */#define AC97_SIGMATEL_OUTSEL	0x64	/* Output Select, STAC9758 */#define AC97_SIGMATEL_INSEL	0x66	/* Input Select, STAC9758 */#define AC97_SIGMATEL_IOMISC	0x68	/* STAC9758 */#define AC97_SIGMATEL_ANALOG	0x6c	/* Analog Special */#define AC97_SIGMATEL_DAC2INVERT 0x6e#define AC97_SIGMATEL_BIAS1	0x70#define AC97_SIGMATEL_BIAS2	0x72#define AC97_SIGMATEL_VARIOUS	0x72	/* STAC9758 */#define AC97_SIGMATEL_MULTICHN	0x74	/* Multi-Channel programming */#define AC97_SIGMATEL_CIC1	0x76#define AC97_SIGMATEL_CIC2	0x78 /* specific - Analog Devices */#define AC97_AD_TEST		0x5a	/* test register */#define AC97_AD_CODEC_CFG	0x70	/* codec configuration */#define AC97_AD_JACK_SPDIF	0x72	/* Jack Sense & S/PDIF */#define AC97_AD_SERIAL_CFG	0x74	/* Serial Configuration */#define AC97_AD_MISC		0x76	/* Misc Control Bits */ /* specific - Cirrus Logic */#define AC97_CSR_ACMODE		0x5e	/* AC Mode Register */#define AC97_CSR_MISC_CRYSTAL	0x60	/* Misc Crystal Control */#define AC97_CSR_SPDIF		0x68	/* S/PDIF Register */#define AC97_CSR_SERIAL		0x6a	/* Serial Port Control */#define AC97_CSR_SPECF_ADDR	0x6c	/* Special Feature Address */#define AC97_CSR_SPECF_DATA	0x6e	/* Special Feature Data */#define AC97_CSR_BDI_STATUS	0x7a	/* BDI Status */ /* specific - Conexant */#define AC97_CXR_AUDIO_MISC	0x5c#define AC97_CXR_SPDIFEN	(1<<3)#define AC97_CXR_COPYRGT	(1<<2)#define AC97_CXR_SPDIF_MASK	(3<<0)#define AC97_CXR_SPDIF_PCM	0x0#define AC97_CXR_SPDIF_AC3	0x2 /* specific - ALC */#define AC97_ALC650_SPDIF_INPUT_STATUS1	0x60/* S/PDIF input status 1 bit defines */#define AC97_ALC650_PRO             0x0001  /* Professional status */#define AC97_ALC650_NAUDIO          0x0002  /* Non audio stream */#define AC97_ALC650_COPY            0x0004  /* Copyright status */#define AC97_ALC650_PRE             0x0038  /* Preemphasis status */#define AC97_ALC650_PRE_SHIFT       3#define AC97_ALC650_MODE            0x00C0  /* Preemphasis status */#define AC97_ALC650_MODE_SHIFT      6#define AC97_ALC650_CC_MASK         0x7f00  /* Category Code mask */#define AC97_ALC650_CC_SHIFT        8#define AC97_ALC650_L               0x8000  /* Generation Level status */ #define AC97_ALC650_SPDIF_INPUT_STATUS2	0x62/* S/PDIF input status 2 bit defines */#define AC97_ALC650_SOUCE_MASK      0x000f  /* Source number */#define AC97_ALC650_CHANNEL_MASK    0x00f0  /* Channel number */#define AC97_ALC650_CHANNEL_SHIFT   4 #define AC97_ALC650_SPSR_MASK       0x0f00  /* S/PDIF Sample Rate bits */#define AC97_ALC650_SPSR_SHIFT      8#define AC97_ALC650_SPSR_44K        0x0000  /* Use 44.1kHz Sample rate */#define AC97_ALC650_SPSR_48K        0x0200  /* Use 48kHz Sample rate */#define AC97_ALC650_SPSR_32K        0x0300  /* Use 32kHz Sample rate */#define AC97_ALC650_CLOCK_ACCURACY  0x3000  /* Clock accuracy */#define AC97_ALC650_CLOCK_SHIFT     12#define AC97_ALC650_CLOCK_LOCK      0x4000  /* Clock locked status */#define AC97_ALC650_V               0x8000  /* Validity status */ #define AC97_ALC650_SURR_DAC_VOL	0x64#define AC97_ALC650_LFE_DAC_VOL		0x66#define AC97_ALC650_UNKNOWN1		0x68#define AC97_ALC650_MULTICH		0x6a#define AC97_ALC650_UNKNOWN2		0x6c#define AC97_ALC650_REVISION		0x6e#define AC97_ALC650_UNKNOWN3		0x70#define AC97_ALC650_UNKNOWN4		0x72#define AC97_ALC650_MISC		0x74#define AC97_ALC650_GPIO_SETUP		0x76#define AC97_ALC650_GPIO_STATUS		0x78#define AC97_ALC650_CLOCK		0x7a /* specific - Yamaha YMF753 */#define AC97_YMF753_DIT_CTRL2	0x66	/* DIT Control 2 */#define AC97_YMF753_3D_MODE_SEL	0x68	/* 3D Mode Select */ /* specific - C-Media */#define AC97_CM9738_VENDOR_CTRL	0x5a#define AC97_CM9739_MULTI_CHAN	0x64#define AC97_CM9739_SPDIF_IN_STATUS	0x68 /* 32bit */#define AC97_CM9739_SPDIF_CTRL	0x6c /* specific - wolfson */#define AC97_WM97XX_FMIXER_VOL  0x72#define AC97_WM9704_RMIXER_VOL  0x74#define AC97_WM9704_TEST        0x5a#define AC97_WM9704_RPCM_VOL    0x70#define AC97_WM9711_OUT3VOL     0x16  /* ac97->scaps */#define AC97_SCAP_AUDIO		(1<<0)	/* audio codec 97 */#define AC97_SCAP_MODEM		(1<<1)	/* modem codec 97 */#define AC97_SCAP_SURROUND_DAC	(1<<2)	/* surround L&R DACs are present */#define AC97_SCAP_CENTER_LFE_DAC (1<<3)	/* center and LFE DACs are present */#define AC97_SCAP_SKIP_AUDIO	(1<<4)	/* skip audio part of codec */#define AC97_SCAP_SKIP_MODEM	(1<<5)	/* skip modem part of codec */#define AC97_SCAP_INDEP_SDIN	(1<<6)	/* independent SDIN */#define AC97_SCAP_INV_EAPD	(1<<7)	/* inverted EAPD */#define AC97_SCAP_DETECT_BY_VENDOR (1<<8) /* use vendor registers for read tests */#define AC97_SCAP_NO_SPDIF	(1<<9)	/* don't build SPDIF controls */ /* ac97->flags */#define AC97_HAS_PC_BEEP	(1<<0)	/* force PC Speaker usage */#define AC97_AD_MULTI		(1<<1)	/* Analog Devices - multi codecs */#define AC97_CS_SPDIF		(1<<2)	/* Cirrus Logic uses funky SPDIF */#define AC97_CX_SPDIF		(1<<3)	/* Conexant's spdif interface */#define AC97_STEREO_MUTES	(1<<4)	/* has stereo mute bits */#define AC97_DOUBLE_RATE	(1<<5)	/* supports double rate playback */#define AC97_HAS_NO_MASTER_VOL	(1<<6)	/* no Master volume */#define AC97_HAS_NO_PCM_VOL	(1<<7)	/* no PCM volume */#define AC97_DEFAULT_POWER_OFF	(1<<8)	/* no RESET write */#define AC97_MODEM_PATCH	(1<<9)	/* modem patch */#define AC97_HAS_NO_REC_GAIN	(1<<10) /* no Record gain */#define AC97_HAS_NO_PHONE	(1<<11) /* no PHONE volume */#define AC97_HAS_NO_PC_BEEP	(1<<12) /* no PC Beep volume */#define AC97_HAS_NO_VIDEO	(1<<13) /* no Video volume */#define AC97_HAS_NO_CD		(1<<14) /* no CD volume */#define AC97_HAS_NO_MIC	(1<<15) /* no MIC volume */#define AC97_HAS_NO_TONE	(1<<16) /* no Tone volume */#define AC97_HAS_NO_STD_PCM	(1<<17)	/* no standard AC97 PCM volume and mute */#define AC97_HAS_NO_AUX		(1<<18) /* no standard AC97 AUX volume and mute */ /* rates indexes */#define AC97_RATES_FRONT_DAC	0#define AC97_RATES_SURR_DAC	1#define AC97_RATES_LFE_DAC	2#define AC97_RATES_ADC		3#define AC97_RATES_MIC_ADC	4#define AC97_RATES_SPDIF	5 /* * */ struct snd_ac97; struct snd_ac97_build_ops {	int (*build_3d) (struct snd_ac97 *ac97);	int (*build_specific) (struct snd_ac97 *ac97);	int (*build_spdif) (struct snd_ac97 *ac97);	int (*build_post_spdif) (struct snd_ac97 *ac97);#ifdef CONFIG_PM	void (*suspend) (struct snd_ac97 *ac97);	void (*resume) (struct snd_ac97 *ac97);#endif	void (*update_jacks) (struct snd_ac97 *ac97);	/* for jack-sharing */}; struct snd_ac97_bus_ops {	void (*reset) (struct snd_ac97 *ac97);	void (*write) (struct snd_ac97 *ac97, unsigned short reg, unsigned short val);	unsigned short (*read) (struct snd_ac97 *ac97, unsigned short reg);	void (*wait) (struct snd_ac97 *ac97);	void (*init) (struct snd_ac97 *ac97);}; struct snd_ac97_bus {	/* -- lowlevel (hardware) driver specific -- */	struct snd_ac97_bus_ops *ops;	void *private_data;	void (*private_free) (struct snd_ac97_bus *bus);	/* --- */	struct snd_card *card;	unsigned short num;	/* bus number */	unsigned short no_vra: 1, /* bridge doesn't support VRA */		       dra: 1,	/* bridge supports double rate */		       isdin: 1;/* independent SDIN */	unsigned int clock;	/* AC'97 base clock (usually 48000Hz) */	spinlock_t bus_lock;	/* used mainly for slot allocation */	unsigned short used_slots[2][4]; /* actually used PCM slots */	unsigned short pcms_count; /* count of PCMs */	struct ac97_pcm *pcms;	struct snd_ac97 *codec[4];	struct snd_info_entry *proc;}; /* static resolution table */struct snd_ac97_res_table {	unsigned short reg;	/* register */	unsigned short bits;	/* resolution bitmask */}; struct snd_ac97_template {	void *private_data;	void (*private_free) (struct snd_ac97 *ac97);	struct pci_dev *pci;	/* assigned PCI device - used for quirks */	unsigned short num;	/* number of codec: 0 = primary, 1 = secondary */	unsigned short addr;	/* physical address of codec [0-3] */	unsigned int scaps;	/* driver capabilities */	const struct snd_ac97_res_table *res_table;	/* static resolution */}; struct snd_ac97 {	/* -- lowlevel (hardware) driver specific -- */	struct snd_ac97_build_ops * build_ops;	void *private_data;	void (*private_free) (struct snd_ac97 *ac97);	/* --- */	struct snd_ac97_bus *bus;	struct pci_dev *pci;	/* assigned PCI device - used for quirks */	struct snd_info_entry *proc;	struct snd_info_entry *proc_regs;	unsigned short subsystem_vendor;	unsigned short subsystem_device;	struct mutex reg_mutex;	struct mutex page_mutex;	/* mutex for AD18xx multi-codecs and paging (2.3) */	unsigned short num;	/* number of codec: 0 = primary, 1 = secondary */	unsigned short addr;	/* physical address of codec [0-3] */	unsigned int id;	/* identification of codec */	unsigned short caps;	/* capabilities (register 0) */	unsigned short ext_id;	/* extended feature identification (register 28) */	unsigned short ext_mid;	/* extended modem ID (register 3C) */	const struct snd_ac97_res_table *res_table;	/* static resolution */	unsigned int scaps;	/* driver capabilities */	unsigned int flags;	/* specific code */	unsigned int rates[6];	/* see AC97_RATES_* defines */	unsigned int spdif_status;	unsigned short regs[0x80]; /* register cache */	DECLARE_BITMAP(reg_accessed, 0x80); /* bit flags */	union {			/* vendor specific code */		struct {			unsigned short unchained[3];	// 0 = C34, 1 = C79, 2 = C69			unsigned short chained[3];	// 0 = C34, 1 = C79, 2 = C69			unsigned short id[3];		// codec IDs (lower 16-bit word)			unsigned short pcmreg[3];	// PCM registers			unsigned short codec_cfg[3];	// CODEC_CFG bits		} ad18xx;		unsigned int dev_flags;		/* device specific */	} spec;	/* jack-sharing info */	unsigned char indep_surround;	unsigned char channel_mode;	struct device dev;}; #define to_ac97_t(d) container_of(d, struct snd_ac97, dev) /* conditions */static inline int ac97_is_audio(struct snd_ac97 * ac97){

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