📄 ac97.h
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/* DESCRIPTION This file provides definitions for the stac9766 Codec and structure */#ifndef __INCac97h#define __INCac97h#if __cplusplusextern "C" {#endif#define AC97_INTERNAL_CLOCK_ENABLE (1<<20)#define floop 400#define AC97_READ_COMMAND (1<<23)#define AC97_CMD_ADDR_SHIFT (16)#define AC97_CMD_DATA_SHIFT (0)/* Defines for the STAC9766 registers*/#define AC97_RESET 0x0000 #define AC97_MASTER_VOL_STEREO 0x0002 #define AC97_HEADPHONE_VOL 0x0004 #define AC97_PCMOUT_VOL 0x0018 #define AC97_EXT_AUDIO_CONTROL 0x002A #define AC97_POWER_CONTROL 0x0026#define AC97_PCM_DAC_RATE 0x002c#define AC97_PCM_ADC_RATE 0x0032#define AC97_GENERAL_PURPOSE 0x0020#define AC97_ANALOG_SPEC 0x006e#define AC97_RECORD_SELECT 0x001a#define AC97_RECORD_GAIN 0x001c#define AC97_MIC_VOL 0x000e/* useful power states*/#define AC97_PWR_D0 0x0000 /*everything on*/typedef struct{ DEV_HRD devHdr; BOOL soundopen;}SOUND_DEV;#if __cplusplus} /* extern "C" */#endif#endif /* __INCac97h */
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