/*****************************************************************************
update by cc @201501101001
针对多串口 和 单一串口 有区别 每个串口是独立的还是分开的有讲究 程序是复杂的还是软件应用简单是
个需要平衡的事情.

uartcom/uartlib.c:  
公用的函数 	和硬件无关 
放置串行模式(串口等其他通讯总线类的输出)输出的函数,
一些覆盖模式输出的(lcd等固屏输出的)的也可使用  
					void Lc_print(void (*L0pf_send_uc)(char ww), char *dat,...)
-----------------------------------------------------------------------------------------
uartcom/uartcom0  
  和uart相关的通讯协议 com + n 
  为了适应不同的通讯协议需要不同的uart口来对应 和应用相关

typedef struct _ts_lcm_pro_; 应用协议包的定义?    LCM的协议------------
											L3_UARTcom0_exp_protocol 解析应用协议
-----------------------------------------------------------------------------------------
uartcom/uprotocol: 主要是为 uartcom + n服务的     驱动层到应用层缓存的过度
公用的串口通讯定义		
 	struct _s_protocol_ 的公共协议包(关键的结构体)的声明------struct _s_protocol_
 							void L1_uart_2buf(struct _s_protocol_ *p)串行数据保存到缓冲中
--------------------------------------------------------------------------------------------
msp/uartx.c    底层代码	 和cpu相关 
			L0_UART0_Init
						UART0_IRQHandler
						    	L0_Usend_uc----------s_at0
-----------------------------------------------------------------------------------------
********************************************************************************/

#include "ccmodbus.h"
#include "../clib/clib.h"

#if 0
U8 L3_pack_ccmodbus_03(TS_PH3_ccmodbus *pmodbus ,U8 slaverId, U16 reg, U16 num)
{
	U8 bufsize = 4;
	pmodbus->slaver = slaverId;
	pmodbus->oper = MODBUS_OPER_READ;
	pmodbus->buf[0] = reg >> 8 & 0xFF;
	pmodbus->buf[1] = reg >> 0 & 0xFF;
	pmodbus->buf[2] = num >> 8 * 0xFF;
	pmodbus->buf[3] = num >> 0 & 0xFF;
	crc16(pmodbus->crc,&pmodbus->slaver,2 + bufsize);
	pmodbus->buf[bufsize] = pmodbus->crc[0];
	pmodbus->buf[bufsize + 1] = pmodbus->crc[1];

	return bufsize + 2 + 2;
}

U8 L3_pack_ccmodbus_06(TS_PH3_ccmodbus *pmodbus ,U8 slaverId, U16 reg, U8 *buf)
{
	U8 bufsize = 4;
	pmodbus->slaver = slaverId;
	pmodbus->oper = MODBUS_OPER_WRITE;
	pmodbus->buf[0] = reg >> 8 & 0xFF;
	pmodbus->buf[1] = reg >> 0 & 0xFF;
	pmodbus->buf[2] = buf[0];
	pmodbus->buf[3] = buf[1];
	crc16(pmodbus->crc,&pmodbus->slaver,2 + bufsize);
	pmodbus->buf[bufsize] = pmodbus->crc[0];
	pmodbus->buf[bufsize + 1] = pmodbus->crc[1];

	return bufsize + 2 + 2;
}

U8 L3_pack_ccmodbus_10(TS_PH3_ccmodbus *pmodbus ,U8 slaverId, U16 reg, U16 num, U8 bytes, U8 *buf)
{
	U8 bufsize = 5,i = 0;
	pmodbus->slaver = slaverId;
	pmodbus->oper = MODBUS_OPER_WRITE_M;
	pmodbus->buf[0] = reg >> 8 & 0xFF;
	pmodbus->buf[1] = reg >> 0 & 0xFF;
	pmodbus->buf[2] = num >> 8 * 0xFF;
	pmodbus->buf[3] = num >> 0 & 0xFF;
	pmodbus->buf[4] = bytes;

	for(i=0;i<bytes;i++)
	{
		pmodbus->buf[5+i] = buf[i];
	}
	crc16(pmodbus->crc,&pmodbus->slaver,2 + bufsize + bytes);
	pmodbus->buf[bufsize + bytes] = pmodbus->crc[0];
	pmodbus->buf[bufsize + bytes + 1] = pmodbus->crc[1];

	return bufsize + bytes + 2 + 2;
}
#endif

U8 L3_pack_ccmodbus(TS_PH3_ccmodbus *pccmodbus, MD_SLAVER_INFO *slaver_info)
{
	U8 pkglen = 0;
	pccmodbus->filter1 = D_CMD_Filter1_ff;
	pccmodbus->filter2 = D_CMD_Filter2_fe;
	pccmodbus->num = L3_pack_modbus((TS_PH4_modbus*)&pccmodbus->slaver, slaver_info);
#if 0	
	switch(slaver_info->oper)
	{
	case MODBUS_OPER_READ:
		pkglen = L3_pack_ccmodbus_03(pccmodbus,slaver_info->slaver,slaver_info->reg,slaver_info->regnum);
		break;
	case MODBUS_OPER_WRITE:
		pkglen = L3_pack_ccmodbus_06(pccmodbus,slaver_info->slaver,slaver_info->reg,slaver_info->buf);
		break;
	case MODBUS_OPER_WRITE_M:
		pkglen = L3_pack_ccmodbus_10(pccmodbus,slaver_info->slaver,slaver_info->reg,slaver_info->regnum,slaver_info->bytes,slaver_info->buf);
		break;
	default:
		break;
	}
	pccmodbus->num = pkglen;
#endif
	return pccmodbus->num + 3;
}

U16 L3_ccmodbus_slaver_ack(TS_PH3_ccmodbus *pccmodbus,TS_PH3_ccmodbus *pModbusAck)
{
	U16 pkglen = L3_modbus_slaver_ack((TS_PH4_modbus*)&pccmodbus->slaver, (TS_PH4_modbus*)&pModbusAck->slaver);
	pModbusAck->filter1 = D_CMD_Filter1_ff;
	pModbusAck->filter2 = D_CMD_Filter2_fe;
	pModbusAck->num = pkglen;
	return pkglen + 3;
}

void L3_ccmodbus_master_handler(TS_PH3_ccmodbus *pmodbus,MD_SLAVER_INFO *p_slaver_info)
{
	L3_modbus_master_handler((TS_PH4_modbus*)pmodbus->slaver,p_slaver_info);
}

///FF FE 08 52 16 11 22 33 44 F5 9F 	发送了一个modbus协议包(8个数据52 16 11 22 33 44 F5 9F	)
/// 0  1  2   3   4   5   6  7   8   9   10
/// 协议表达的意思为地址为0x52的从机,  功能码16 数据为11 22 33 44,校验码 F5 9F 
void L1_s2b_PH3(struct _tp_handler_x *p)// reentrant
{	
	p->cashe[1] = p->cashe[0];
	p->cashe[0] = p->reg;// 
	
	if (0 == p->head)
	{
		if ((p->cashe[1] == p->head_0)&&(p->cashe[0] == p->head_1))
		{
			p->head = 1;
			p->max = D_tp_handle_x_len;
			p->sp = p->buf;
			p->num = 0;
			p->sp[p->num++] = p->head_0;
			p->sp[p->num++] = p->head_1;		
		}
	}
	else
	{
		p->sp[p->num++] = p->cashe[0];
		if(p->num == 3)//数量 第3个数据
		{
			p->max = p->cashe[0] + 3;
			if((p->max > D_tp_handle_x_len) || (p->max < D_s_ccmodbus_min))
			{
				p->head = 0;
				return;	//error 超过最大长度
			}
		}
		if(p->num >= p->max)
		{
			crc16(p->crc,p->buf + 3,p->num - 3 - 2);
			if(p->crc[0] == p->buf[p->num-2] && p->crc[1] == p->buf[p->num-1])
			{
				if (p->ok != 1)
				{
					p->ok = 1;//收到 命令结束,必须有个地方清0，否则无法再次接受报文
				}
			}
			p->head = 0;	//放在if (p->ok != 1) 外
		}
	}
}



/******************************************************************************
**                            End Of File
******************************************************************************/