audio_abuf_ctrl.h

来自「AMLOGIC DPF source code」· C头文件 代码 · 共 46 行

#ifndef _AUDIO_ABUF_CTRL_H_
#define _AUDIO_ABUF_CTRL_H_

#include "ioapi.h"

DECLARE_DEVICE_DRIVER_INIT(abuf);
DECLARE_DEVICE_DRIVER_OPEN(abuf);
DECLARE_DEVICE_DRIVER_CLOSE(abuf);
DECLARE_DEVICE_DRIVER_READ(abuf);
DECLARE_DEVICE_DRIVER_WRITE(abuf);
DECLARE_DEVICE_DRIVER_IOCTL(abuf);

#define DEVICE_TABLE_AUDIO_ABUF \
    {                               \
        audio_device_abuf_init,   \
        audio_device_abuf_open,   \
        audio_device_abuf_close,  \
        audio_device_abuf_read,   \
        audio_device_abuf_write,  \
        audio_device_abuf_ioctl,  \
    }

#define ABUF_MODE_RECEIVE	0
#define ABUF_MODE_ECHO		1
#define ABUF_MODE_MIX		2

#define ABUF_FREQ_32        0x03
#define ABUF_FREQ_44        0x02
#define ABUF_FREQ_48        0x00

#define ECHO_PAUSE		0x01
#define ECHO_REPEAT		0x02
#define ECHO_FLUSH		0x04
#define ECHO_RESET		0x08
#define ECHO_PLAY_ONCE	0x10

typedef struct{
	int mode;	// receive, echo, mix
	int start;	// start addr, must 32*4 bytes align
	int size;	// total bytes, must 32*4 bytes align	
	int freq;	// freq for ADC
}_audio_codec_config_abuf_t;

#endif