liweiyan/shoe_mcu2.1.1/hal/bll_single_line_half_duplex.c

/*Includes ----------------------------------------------*/
#include "nrf_delay.h"
#include "tool.h"
#include "bsp_adc.h"
#include "bsp_pwm.h"
#include "bsp_time.h"
#include "exception.h"
#include "system.h"
#include "bll_single_line_half_duplex.h"


/*Private macro ------------------------------------------------*/
#define			BLL_SINGLE_LINE_HALF_DUPLEX_CHARGING_VOL_THRESHOLD			2000																																			//充电电压阈值		

#define			BLL_SINGLE_LINE_HALF_DUPLEX_CONNECTION_VOL_THRESHOLD		200																																				//连接电压阈值	

#define			BLL_SINGLE_LINE_HALF_DUPLEX_CYCLE_ALLOWANCE							20																																				//周期余量		单位：ms

#define			BLL_SINGLE_LINE_HALF_DUPLEX_CYCLE												((StandByPower_Interval/2)+BLL_SINGLE_LINE_HALF_DUPLEX_CYCLE_ALLOWANCE)		//半双工周期（一发或一收为一周期）    			单位：ms

#define			BLL_SINGLE_LINE_HALF_DUPLEX_RECEIVE_CB_MAX_LEN					5																																					//接收最大回调数


/*STRUCTION -----------------------------------------------------*/
typedef enum
{
	BLL_SINGLE_LINE_HALF_DUPLEX_STATUS_RECEIVE_ING 							=	0,																																						//状态 —— 接收中
	
	BLL_SINGLE_LINE_HALF_DUPLEX_STATUS_TRANSFER_ING 						= 1,																																						//状态 —— 发送中
			
	BLL_SINGLE_LINE_HALF_DUPLEX_STATUS_RECEIVE_DONE 						= 2,																																						//状态 —— 接收完成
	
	BLL_SINGLE_LINE_HALF_DUPLEX_STATUS_TRANSFER_DONE 						= 3,																																						//状态 —— 发送完成

} BLL_SINGLE_LINE_HALF_DUPLEX_STATUS_e;

typedef struct _bll_single_line_half_duplex
{
	BLL_SINGLE_LINE_HALF_DUPLEX_ROLE_e													role;																																						//角色
	
	BLL_SINGLE_LINE_HALF_DUPLEX_STATUS_e												status;																																					//状态
	
	uint32_t																										status_start_ms;																																//状态开始时间
		
	bll_single_line_half_duplex_receive_cb											receive_cb[BLL_SINGLE_LINE_HALF_DUPLEX_RECEIVE_CB_MAX_LEN];											//注册的接收回调
	
	uint32_t																										error_calib_ms;																																	//误差校准
	
} Bll_Single_Line_Half_Duplex_t;



/*Local Variable ----------------------------------------------*/
static Bll_Single_Line_Half_Duplex_t ob_bll_single_line_half_duplex;


/*Local Functions ----------------------------------------------*/
static void bll_single_line_half_duplex_receive_Process(void)
{
	char 			byte;
	uint32_t 	error_calib_ms = NRF_RTC0->COUNTER;
	
	//误差校准
	if(error_calib_ms < ob_bll_single_line_half_duplex.error_calib_ms)error_calib_ms += 16777216;
	
	if((error_calib_ms - ob_bll_single_line_half_duplex.error_calib_ms)/32.768 <= (FML_SINGLE_LINE_SIMPLEX_END_CODE_T/1000))
	{
		Process_UpdatePeroid(bll_single_line_half_duplex_receive_Process,(FML_SINGLE_LINE_SIMPLEX_END_CODE_T/1000) - ((error_calib_ms - ob_bll_single_line_half_duplex.error_calib_ms)/32.768));
		return;
	}
	
	if(fml_single_line_simplex_receive(&byte, 1) > 0)
	{
		for(int i = 0; i < BLL_SINGLE_LINE_HALF_DUPLEX_RECEIVE_CB_MAX_LEN; i++)
		{
			//注册回调函数不为空
			if(ob_bll_single_line_half_duplex.receive_cb[i] != NULL)
			{
				ob_bll_single_line_half_duplex.receive_cb[i](byte);
			}
		}
		//处理完后，取消全功率
		Process_SetHoldOn(bll_single_line_half_duplex_receive_Process,0);	
		//只有在触发接收时，才运行。
		Process_Stop(bll_single_line_half_duplex_receive_Process);	
	}
}

static void bll_single_line_half_duplex_transfer_Process(void)
{
	uint32_t cur_time_ms = TIME_GetTicks();
	uint32_t time_diff;
	
	//时间溢出处理
	if(ob_bll_single_line_half_duplex.status_start_ms > cur_time_ms)
	{
		time_diff = 0xFFFFFFFF - ob_bll_single_line_half_duplex.status_start_ms + cur_time_ms;
	}
	else
	{
		time_diff = cur_time_ms - ob_bll_single_line_half_duplex.status_start_ms;
	}
	
	//当角色为主机时
	if(ob_bll_single_line_half_duplex.role == BLL_SINGLE_LINE_HALF_DUPLEX_ROLE_HOST)
	{
		//若是传输中。。。。
		if(time_diff >= BLL_SINGLE_LINE_HALF_DUPLEX_CYCLE && ob_bll_single_line_half_duplex.status == BLL_SINGLE_LINE_HALF_DUPLEX_STATUS_TRANSFER_ING)
		{
			//修改状态 —— 接收中。。。
			ob_bll_single_line_half_duplex.status = BLL_SINGLE_LINE_HALF_DUPLEX_STATUS_RECEIVE_ING;
			//获取周期开始时间
			ob_bll_single_line_half_duplex.status_start_ms = TIME_GetTicks();
		}
		//若是接收中。。。。
		if(time_diff >= BLL_SINGLE_LINE_HALF_DUPLEX_CYCLE && ob_bll_single_line_half_duplex.status == BLL_SINGLE_LINE_HALF_DUPLEX_STATUS_RECEIVE_ING)
		{
			//修改状态 —— 接收完成
			ob_bll_single_line_half_duplex.status = BLL_SINGLE_LINE_HALF_DUPLEX_STATUS_RECEIVE_DONE;
			//处理完后，取消全功率
			Process_SetHoldOn(bll_single_line_half_duplex_transfer_Process,0);	
			//只有在触发接收时，才运行。
			Process_Stop(bll_single_line_half_duplex_transfer_Process);	
		}
	}
	
	//当角色为从机时
	if(ob_bll_single_line_half_duplex.role == BLL_SINGLE_LINE_HALF_DUPLEX_ROLE_SLAVE)
	{
		//若是传输中。。。。
		if(time_diff >= BLL_SINGLE_LINE_HALF_DUPLEX_CYCLE && ob_bll_single_line_half_duplex.status == BLL_SINGLE_LINE_HALF_DUPLEX_STATUS_TRANSFER_ING)
		{
			//修改状态 —— 传输完成。。。
			ob_bll_single_line_half_duplex.status = BLL_SINGLE_LINE_HALF_DUPLEX_STATUS_TRANSFER_DONE;
			//处理完后，取消全功率
			Process_SetHoldOn(bll_single_line_half_duplex_transfer_Process,0);	
			//只有在触发接收时，才运行。
			Process_Stop(bll_single_line_half_duplex_transfer_Process);	
		}
	}
}

static void bll_single_line_half_duplex_receive_time_callback(void)
{
	//当角色为从机时
	if(ob_bll_single_line_half_duplex.role == BLL_SINGLE_LINE_HALF_DUPLEX_ROLE_SLAVE)
	{
		//修改状态 —— 接收完成
		ob_bll_single_line_half_duplex.status = BLL_SINGLE_LINE_HALF_DUPLEX_STATUS_RECEIVE_DONE;
		//获取周期开始时间
		ob_bll_single_line_half_duplex.status_start_ms = TIME_GetTicks();
	}
	
	//中断唤醒时，定时器的值还未累积，这时获取的值是上次唤醒前的定时器值。
	ob_bll_single_line_half_duplex.error_calib_ms = NRF_RTC0->COUNTER;
	
	//注册线程任务，用于接收处理，回调给注册的回调函数
	Process_Start((FML_SINGLE_LINE_SIMPLEX_END_CODE_T/1000),"bll_single_line_half_duplex_receive_Process",bll_single_line_half_duplex_receive_Process);	
	//接收到数据后，全功率运行回调处理
	Process_SetHoldOn(bll_single_line_half_duplex_receive_Process,1);												
}


/*API ----------------------------------------------*/
/**
	@brief 		初始化单线半双工业务
	@param 		无
	@return 	错误代码							- [out]	-1失败，0成功
*/
int bll_single_line_half_duplex_Init(BLL_SINGLE_LINE_HALF_DUPLEX_ROLE_e role)
{
	int ret;
	
	ret = fml_single_line_simplex_Init((FML_SINGLE_LINE_SIMPLEX_ROLE_e)role);
	
	//重置
	memset(&ob_bll_single_line_half_duplex,0,sizeof(ob_bll_single_line_half_duplex));
	
	//初始化结构体
	ob_bll_single_line_half_duplex.role 					= role;

	if(role == BLL_SINGLE_LINE_HALF_DUPLEX_ROLE_HOST)ob_bll_single_line_half_duplex.status = BLL_SINGLE_LINE_HALF_DUPLEX_STATUS_RECEIVE_DONE;
	else ob_bll_single_line_half_duplex.status = BLL_SINGLE_LINE_HALF_DUPLEX_STATUS_TRANSFER_DONE;
	
	//注册接收回调
	if(ret != -1)fml_single_line_simplex_receive_time_callback(bll_single_line_half_duplex_receive_time_callback);
	
	//注册线程任务，用于接收处理，回调给注册的回调函数
	Process_Start((FML_SINGLE_LINE_SIMPLEX_END_CODE_T/1000),"bll_single_line_half_duplex_receive_Process",bll_single_line_half_duplex_receive_Process);
	//只有在触发接收时，才运行。
	Process_Stop(bll_single_line_half_duplex_receive_Process);	
	
	//注册线程任务，用于传输处理
	Process_Start(0,"bll_single_line_half_duplex_transfer_Process",bll_single_line_half_duplex_transfer_Process);
	//只有在触发发送时，才运行。
	Process_Stop(bll_single_line_half_duplex_transfer_Process);
	
	return (ret == 0)?0:-1;
}

/**
	@brief 		单线半双工传输是否可发送
	@param 		无
	@return 	错误代码							- [out]	-3没有连上线，-2处于接收周期，-1正在发送中，0成功
*/
int bll_single_line_half_duplex_is_ready_to_transfer(void)
{
	int 		ret = 0;
	int16_t adc_value;
	
	//检测是否正在发送中
	if(fml_single_line_simplex_pwm_transfer_is_done() == -1)ret = -1;
	if(ret < 0)return ret;
	
	//检测是否处于接收周期
	if(ob_bll_single_line_half_duplex.status != BLL_SINGLE_LINE_HALF_DUPLEX_STATUS_RECEIVE_DONE)ret = -2;	
	if(ret < 0)return ret;
	
	//检测是否连上线（物理）
	fml_single_line_simplex_UnInit();
	ADC_Disable();
	ADC_SetPinChannel(FML_SINGLE_LINE_SIMPLEX_PIN, 4, NRF_GPIO_PIN_PULLUP);
	ADC_Initialize();
	ADC_Read(4, &adc_value);
	SEGGER_RTT_printf(0,"adc_value:%d\n",adc_value);
	if(!(adc_value >= BLL_SINGLE_LINE_HALF_DUPLEX_CONNECTION_VOL_THRESHOLD && adc_value < BLL_SINGLE_LINE_HALF_DUPLEX_CHARGING_VOL_THRESHOLD))ret = -3;
	ADC_Disable();
	ADC_RemovePinChannel(FML_SINGLE_LINE_SIMPLEX_PIN, 4);
	ADC_Initialize();
	fml_single_line_simplex_Init((FML_SINGLE_LINE_SIMPLEX_ROLE_e)ob_bll_single_line_half_duplex.role);
	fml_single_line_simplex_receive_time_callback(bll_single_line_half_duplex_receive_time_callback);

	return ret;
}

/**
	@brief 		单线半双工传输 —— 发送
	@param 		byte 									- [in]	发送的字节
	@return 	错误代码							- [out]	-2发送失败，-1没准备好传输，0成功
*/
int bll_single_line_half_duplex_transfer_onebyte(char byte)
{
	int ret = 0;
	
	//检测是否准备好传输
	if(bll_single_line_half_duplex_is_ready_to_transfer() != 0)ret = -1;
	//发送
	if(fml_single_line_simplex_pwm_transfer_onebyte(byte) == -1)ret = -2;
	//修改状态
	ob_bll_single_line_half_duplex.status = BLL_SINGLE_LINE_HALF_DUPLEX_STATUS_TRANSFER_ING;

	//当角色为主机时
	if(ob_bll_single_line_half_duplex.role == BLL_SINGLE_LINE_HALF_DUPLEX_ROLE_HOST)
	{
		//获取周期开始时间
		ob_bll_single_line_half_duplex.status_start_ms = TIME_GetTicks();
	}
	
	//注册线程任务，用于处理发送数据的状态
	Process_Start(0,"bll_single_line_half_duplex_transfer_Process",bll_single_line_half_duplex_transfer_Process);
	//全功率运行
	Process_SetHoldOn(bll_single_line_half_duplex_transfer_Process,1);
	
	return ret;
}

/**
	@brief 		单线半双工传输 —— 接收
	@param 		cb 										- [in]	接收回调函数
	@return 	错误代码							- [out]	-1失败，0成功
*/
int bll_single_line_half_duplex_receive_register(bll_single_line_half_duplex_receive_cb cb)
{
	static uint8_t cur_index = 0;
	
	if(cb == NULL)return -1;
	
	if(cur_index >= BLL_SINGLE_LINE_HALF_DUPLEX_RECEIVE_CB_MAX_LEN)return -1;
	
	ob_bll_single_line_half_duplex.receive_cb[cur_index++] = cb;
	
	return 0;
}