tv_tuner.h

一款车载DVD的车机源程序（正在生成中的哦）

#include "Sys_config.h"

#define TV_TUNER_ADDR					0xc0
#define TV_STEP_SIZE					625*4
#define TV_SUB_ADDR					0x86
#define TV_DATA_ADDR					0

#ifdef TNJ_3321_UF
#define VLF_MIN_FPC                 			442500
#define VLF_MAX_FPC						1402500
#define VHF_MIN_FPC                 			1472500
#define VHF_MAX_FPC					4232500
#define UHF_MIN_FPC                 			4312500
#define UHF_MAX_FPC					8632500
#endif

#ifdef TNJ_8355_QF
#define VLF_MIN_FPC                 			442500
#define VLF_MAX_FPC						1612500
#define VHF_MIN_FPC                 			1682500
#define VHF_MAX_FPC					4632500
#define UHF_MIN_FPC                 			4712500
#define UHF_MAX_FPC					8632500
#endif

#ifdef TNJ_3321_UF
#define CONTROL_BYTE               			0x8e
#endif

#ifdef TNJ_8355_QF
#define CONTROL_BYTE               			0xce
#endif

#ifdef TNJ_3321_UF
#define VLF_BAND						0x01
#define VHF_BAND						0x02
#define UHF_BAND						0x08
#endif

#ifdef TNJ_8355_QF
#define VLF_BAND						0x01
#define VHF_BAND						0x02
#define UHF_BAND						0x04
#endif



#ifdef TNJ_3321_UF
#define TV_B_DATA 							0xd6
#define TV_C_DATA 							0x30
#define TV_PAL_BG_DATA						0x49
#define TV_PAL_I_DATA						0x4a
#define TV_PAL_DK_DATA						0x4b
#define TV_NTSC_MN_DATA					0x48
#endif

enum{
TV_PAL_BG,
TV_PAL_I,
TV_PAL_DK,
TV_NTSC_MN,
TV_C_L,
TV_C_L_L
};
#define	HIBYTE(w)		(((unsigned char *)&w)[0])
#define	LOBYTE(w)		(((unsigned char *)&w)[1])


//Define the TV tuner flag
enum
{
TVsearchOK,
bTVprevSearchFlag,
bTVnextSearchFlag
};

extern unsigned char TVchannelNum;
extern unsigned char TV_tuner_flag;
extern unsigned long TVpllPCfreq;
extern unsigned long TV_frequence_list[];
extern unsigned char TV_fromat;
extern void TV_autosearch(void);
extern void TVTUNER_init(void);
extern void TV_search_key_process(void);
extern void TV_changer_freq(void);
extern void TV_adjust_divider(unsigned long PCfreq);
extern void TV_change_format(void);