河北水利局项目

filedata/filedata.c

@@ -0,0 +1,280 @@
+#include "file.h"
+#include "filedata.h"
+
+extern u8 GetSum(u8 * buffer, u16 length);
+
+
+struct waterdata_struct waterdata;
+struct curtime_struct curtime;
+struct valid_struct valid;
+
+uint8_t get_ck(uint8_t *val, uint16_t len)
+{
+	return GetSum(val, len);
+}
+
+
+//得到正向数据
+static void get_forwarddata()
+{
+}
+
+//得到反向数据
+static void get_reverseddata()
+{
+}
+
+/*
+//得到状态
+static void get_status()
+{
+waterdata.status[0] = 0;
+waterdata.status[1] = 0;
+}
+*/
+//得到状态
+
+
+static void get_waterdata(int32_t year,uint8_t mon,uint8_t day,uint8_t hour,uint8_t min)
+{
+	get_forwarddata();
+	get_reverseddata();
+	waterdata.invalid = DATA_VALID_AA;
+	waterdata.year = year;
+	waterdata.mon = mon;
+	waterdata.day = day;
+	waterdata.hour = hour;
+	waterdata.min = min;
+	waterdata.crc = get_ck(&(waterdata.invalid),WATERDATA_LEN);
+}
+
+uint32_t get_base_time()
+{
+	return curtime.time;
+}
+
+
+bool curtime_iscmp(struct curtime_struct * time1,struct curtime_struct * time2)
+{
+	if(time1->time == time2->time && time1->year == time2->year && 
+		time1->mon == time2->mon && time1->day == time2->day && 
+		time1->crc == time2->crc)
+	{
+		return true;
+	}
+	return false;
+}
+
+void curtime_write()
+{
+	uint32_t year = 0;
+	uint8_t mon = 0;
+	uint8_t day = 0;
+	struct curtime_struct tmpcurtime;
+
+	curtime.time = get_curtime(&year,&mon,&day);
+	curtime.year = year;
+	curtime.mon = mon;
+	curtime.day = day;
+	curtime.crc = get_ck((uint8_t*)&(curtime),CUR_TIME_LEN);
+
+	file_curtime_read((uint8_t*)&tmpcurtime,sizeof(tmpcurtime));
+
+	if(!curtime_iscmp(&tmpcurtime,&curtime))
+	{
+		file_curtime_write((uint8_t*)&curtime,sizeof(curtime));
+	}
+}
+
+void validflag_read(uint8_t day)
+{
+	file_validflag_read(day,(uint8_t*)&valid,sizeof(valid));
+
+	if(valid.crc != get_ck((uint8_t*)&(valid),VALID_DATA_LEN))
+	{
+		valid.valid = 0xFF;
+	}
+}
+
+void validflag_write(uint32_t year,uint8_t mon,uint8_t date,uint8_t day)
+{
+	//标志每天只写一直。
+	//如果年月日和保存的年月日不等，认为写入。
+	//数据是否有效
+	validflag_read(day);
+	if(valid.year != year || valid.mon != mon || valid.day != date)
+	{
+		valid.year = year;
+		valid.mon = mon;
+		valid.day = date;
+		valid.valid = DATA_VALID_AA;
+		valid.crc = get_ck((uint8_t*)&(valid),VALID_DATA_LEN);
+		file_validflag_write(day,(uint8_t*)&valid,sizeof(valid));
+	}
+	else
+	{
+		//如果年月日和保存的年月日相等，但是有效标志不等于AA
+		if(valid.valid == DATA_VALID_AA)
+		{
+		}
+		else
+		{
+			valid.year = year;
+			valid.mon = mon;
+			valid.day = date;
+			valid.valid = DATA_VALID_AA;
+			valid.crc = get_ck((uint8_t*)&(valid),VALID_DATA_LEN);
+			file_validflag_write(day,(uint8_t*)&valid,sizeof(valid));
+		}
+	}
+}
+
+uint8_t get_validflag()
+{
+	return valid.valid;
+}
+
+uint32_t get_validyear()
+{
+	return valid.year;
+}
+
+uint8_t get_validmon()
+{
+	return valid.mon;
+}
+
+uint8_t get_validday()
+{
+	return valid.day;
+}
+
+void adjust_basetime()
+{
+	uint32_t year = 0;
+	uint8_t mon = 0;
+	uint8_t date = 0;
+	uint8_t day = 0;
+	uint32_t time = 0;
+
+	time = get_curtime(&year,&mon,&date);
+	file_curtime_read((uint8_t*)&curtime,sizeof(curtime));
+	//第一次开机
+	if(curtime.crc != get_ck((uint8_t*)&(curtime),CUR_TIME_LEN))
+	{
+		curtime_write();
+	}
+	//如果基准时间大于当前时间
+	if(curtime.time>time)
+	{
+		curtime_write();
+	}
+	else
+	{
+		day = get_space_day(time,curtime.time);
+		//如果间隔时间大于DATA_DAY_MAX，重新计数
+		if(day>=DATA_DAY_MAX)
+		{
+			curtime_write();
+		}
+	}
+}
+
+
+bool is_waterdata_save(uint8_t space,uint32_t year,uint8_t mon,uint8_t day,uint8_t hour,uint8_t min)
+{
+	struct waterdata_struct waterdata;
+	file_waterdata_read(space,hour,min,(uint8_t *)&waterdata,sizeof(waterdata));
+	if(waterdata.year == year && waterdata.mon == mon &&  waterdata.day == day && waterdata.hour == hour && waterdata.min == min)
+	{
+		return false;
+	}
+	return true;
+}
+
+
+void waterdata_write(uint32_t year,uint8_t mon,uint8_t day,uint8_t hour,uint8_t min,uint8_t sec)
+{
+	uint8_t space = 0;  
+	uint32_t oldtime = 0;
+	uint32_t newtime = 0;
+
+	//修正基准时间，新时间会大于等于基准时间，并且小于DATA_DAY_MAX
+	//建立在时间准确的条件下
+	adjust_basetime();
+
+	oldtime = get_base_time();
+	newtime = mktime(year,mon,day,0,0,0);
+        
+	min = 0;
+        
+	if(newtime>=oldtime)
+	{
+		space =  get_space_day(oldtime,newtime);
+
+		//如果是当前年月日，不处理。
+		validflag_write(year,mon,day,space);
+		//得到时间和数据，保存。
+		get_waterdata(year,mon,day,hour,min);
+
+		if(is_waterdata_save(space,year,mon,day,hour,min))
+		{
+			file_waterdata_write(space,hour,min,(uint8_t *)&waterdata,sizeof(waterdata));
+		}
+	}
+}
+
+//当前时间减去基准时间，得到天数
+static uint8_t get_sub_day()
+{
+	uint32_t year = 0;
+	uint8_t mon = 0;
+	uint8_t date = 0;
+	uint32_t oldtime = get_base_time();
+	uint32_t newtime = get_curtime(&year,&mon,&date);
+	uint16_t day = 0;
+	if(newtime>oldtime)
+	{
+		day =  get_space_day(oldtime,newtime);
+	}
+	return day;
+}
+
+//得到在i2c中的位置
+uint8_t get_realday(uint8_t day)
+{
+	uint8_t realday = 0;
+	uint8_t subday = 0;
+	//计算需要重新测试
+	subday = get_sub_day();
+	if(subday>day)
+	{
+		realday = subday - day-1;
+		if(realday>DATA_DAY_MAX-1)
+		{
+			realday = 0;
+		}
+	}
+	else
+	{
+		realday = DATA_DAY_MAX - 1 - (day - subday);
+	}
+
+#ifdef DEBUG_FILEI2C  
+	HT_PRINT("总天数=%02d i2c位置=%02d 前几日=%02d\r\n",DATA_DAY_MAX,realday,day);
+#endif
+	return realday;
+}
+
+
+void hb_waterdata_write(u16 count,struct waterdata_struct * waterdata)
+{
+      file_waterdata_write(count,0,0,(uint8_t *)waterdata,sizeof(struct waterdata_struct));
+}
+
+void hb_waterdata_read(u16 count,struct waterdata_struct * waterdata)
+{
+      file_waterdata_read(count,0,0,(uint8_t *)waterdata,sizeof(struct waterdata_struct));
+}
+
+