csp.h

一款车载DVD的车机源程序（正在生成中的哦）

#define PT2313_I2C_address	0x88
//Define the Csp_buff's every register's function
//extern unsigned char Csp_buff[];
#define Volume_control	Csp_buff[0]
#define Speak_att_LR	Csp_buff[1] 
#define Speak_att_RR	Csp_buff[2] 
#define Speak_att_LF	Csp_buff[3] 
#define Speak_att_RF	Csp_buff[4] 
#define Audio_switch	Csp_buff[5] 
#define Bass_control	Csp_buff[6] 
#define Treble_control	Csp_buff[7] 


//Define the audio input source
enum
{
	AV_switch_input_source,
	Radio_tuner_source,
	Outside_AV2_input_source
};
//Define the audio input gain
enum
{	Audio_input_gain_1125db,
	Audio_input_gain_75db,
	Audio_input_gain_375db,
	Audio_input_gain_0db
};

enum{
Front_speaker_balance_mode,
Total_volume_mode,
Treble_volume_mode,
Bass_volume_mode,
Back_speaker_balance_mode
};

extern unsigned char Csp_adjust_mode;
extern unsigned char Front_speaker_balance_volume;
extern unsigned char Back_speaker_balance_volume;

extern unsigned char Bass_volume;
extern unsigned char Treble_volume;
extern unsigned char Total_volume;
extern unsigned char LF_volume;
extern unsigned char RF_volume;
extern unsigned char LR_volume;
extern unsigned char RR_volume;
extern void Select_audio_input_source(unsigned char Input_source);
extern void Enable_loudness_on(void);
extern void Disable_loudness_off(void);
extern void Select_audio_input_gain(unsigned char Input_gain);
extern void Audio_bass_control(void);
extern void Audio_treble_control(void);
extern void Audio_total_volume_control(void);
extern void Audio_LF_speaker_volume_control(void);
extern void Audio_RF_speaker_volume_control(void);
extern void Audio_LR_speaker_volume_control(void);
extern void Audio_RR_speaker_volume_control(void);
extern void Init_csp(void);
extern void Front_speaker_balance_volume_control(void);
extern void Back_speaker_balance_volume_control(void);
extern void Csp_up_adjust_control(void);
extern void Csp_down_adjust_control(void);
extern void Mute_csp(void);
extern void Unmute_csp(void);