optical/NxFuncs/comm/ocom.h

#ifndef __OCOM_H__
#define __OCOM_H__

#include "config.h"
//------------------------------------------------------------------------


// ͨѶ<CDA8><D1B6><EFBFBD>ݰ<EFBFBD><DDB0><EFBFBD><EFBFBD><EFBFBD>

//------------------------------------
/*
һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݰ<EFBFBD><EFBFBD><EFBFBD>ʽ

	1. <EFBFBD>̶<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݰ<EFBFBD><EFBFBD><EFBFBD>ʽ

		|-------------------------------------------------------------------|-----------|
		|	<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>	|  <EFBFBD><EFBFBD><EFBFBD><EFBFBD>	|			<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>							|	У<EFBFBD><EFBFBD><EFBFBD><EFBFBD>	|
		|-------------------------------------------------------------------|-----------|
		|	B0	B1	B2	|	B3	|	B4	B5	B6	B7	B8	B9	B10	B11	B12	B13	|	B14	B15	|
		|-------------------------------------------------------------------|-----------|
		|	<EFBFBD>̶<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>	|		|		<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>岻ͬ				        | B4--B13<EFBFBD><EFBFBD>	|
		|				|  	ID	|		<EFBFBD><EFBFBD><EFBFBD>嶨<EFBFBD><EFBFBD><EFBFBD>ο<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϸ˵<EFBFBD><EFBFBD>				    |16λ<EFBFBD><EFBFBD>У<EFBFBD><EFBFBD>	|
		| 0xEB,0x90,0xD7| 		|											|  			|
		|-------------------------------------------------------------------|-----------|

*/

//------------------------------------

#define	DC_SYNC_LEN		3		// <20><><EFBFBD><EFBFBD>ʶ<EFBFBD><CAB6><EFBFBD><EFBFBD><EFBFBD>г<EFBFBD><D0B3><EFBFBD>
#define	DC_CMD_LEN		1		// <20><><EFBFBD><EFBFBD><EEB3A4>
#define	DC_CONT_LEN		10		// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݳ<EFBFBD><DDB3><EFBFBD>
#define	DC_CHK_LEN		2		// У<><D0A3><EFBFBD>ֳ<EFBFBD><D6B3><EFBFBD>

#define	DC_CHECK_LEN		(DC_CMD_LEN+DC_CONT_LEN)
#define	LEN_OCOM_PKT		(DC_SYNC_LEN+DC_CMD_LEN+DC_CONT_LEN+DC_CHK_LEN)

//------------------------------------

#ifdef _IN_OCOM_C

const u8 OCOM_SYNC[DC_SYNC_LEN] = 
{
	0xEB,
	0x90,
	0xD7,
};


#else

extern const u8 OCOM_SYNC[DC_SYNC_LEN];

#endif


//------------------------------------

typedef union 
{
	struct
	{
		u8 normal[LEN_OCOM_PKT];
	} __attribute__ ((packed)) buff;			// buff<66><66>ʽ

	struct
	{
		u8 sync[DC_SYNC_LEN];
		u8 cmd;
		u8 content[DC_CONT_LEN];
		u16 check;
	} __attribute__ ((packed)) normal;			// ͨ<>÷<EFBFBD>ʽ

	struct
	{
		u8 sync[DC_SYNC_LEN];
		u8 cmd;
		u8 toggle;
		u8 attr;
		s32 ax;
		s32 ay;
		u16 check;
	} __attribute__ ((packed)) offcmd;		// <20>߼<EFBFBD>ƫ<EFBFBD><C6AB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>

	struct
	{
		u8 sync[DC_SYNC_LEN];
		u8 cmd;
		u8 toggle;
		u16 exlen;
		u8 data1[7];
		u16 check;
	} __attribute__ ((packed)) d21cmd;		// D21<32><31><EFBFBD><EFBFBD>

}OComPacket;

typedef struct
{
	int (*SendOComData)(u8 *, int);
	int (*GetOComData)(u8 *, int);
	int (*GetRsvLen)(void);
	int (*GetTrsFreeLen)(void);
	void (*Delay)(u32);
}OComExFuns;

//------------------------------------

// <20><><EFBFBD>ջ<EFBFBD><D5BB><EFBFBD><EFBFBD><EFBFBD>
void ReadOComBuffEmpty(OComExFuns * funs);

int GetAOComPacket(OComExFuns * funs, OComPacket * pPacket);
int GetOComExData(OComExFuns * funs, u8 * pBuff, int exlen);

int SendAOComPacket(OComExFuns * funs, OComPacket * pPacket);
int SendOComExData(OComExFuns * funs, u8 * pBuff, int exlen);


int PacketAOCom(OComPacket * pPacket);

#define GetAOComNormalPacket	GetAOComPacket

#endif