File content as of revision 15:065fbeddc305:

/*
 * mbed Application program
 * Data logging & Monitor program for only LPC1114FN28 
 *
 *  Copyright (c) 2010-2014 Kenji Arai / JH1PJL
 *  http://www.page.sannet.ne.jp/kenjia/index.html
 *  http://mbed.org/users/kenjiArai/
 *      Created:  May  	    15th, 2010
 *		Spareted: June		25th, 2014		mon() & mon_hw()
 *      Revised:  June      29th, 2014
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
 * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
 * AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
 * DAMAGES OR OTHER  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

//  Include ---------------------------------------------------------------------------------------
#include "mbed.h"
#include "m41t62_rtc.h"         // Own lib. / RTC control
#include "AT24C1024.h"          // Own lib. / EEPROM control
#include "dt_log.h"

//  Object ----------------------------------------------------------------------------------------
Serial pc(dp16,dp15);
extern I2C    xi2c(dp5,dp27);	// SDA, SCL
extern M41T62 xm41t62(xi2c);	// STmicro RTC(M41T62)
AT24C1024   at24c1024(xi2c);    // Atmel 1Mbit EE-PROM 

//  Definition ------------------------------------------------------------------------------------
#define BAUD(x)         	pc.baud(x)
#define GETC(x)         	pc.getc(x)
#define PUTC(x)				pc.putc(x)
#define PRINTF(...)     	pc.printf(__VA_ARGS__)
#define READABLE(x)     	pc.readable(x)

// EEPROM
#define EEP_TOP				0x0

//  RAM -------------------------------------------------------------------------------------------
char linebuf[64];
int buf_size = sizeof(linebuf);

// 	for EEPROM control
uint8_t buf_pointer[PTR_SIZE];
xEeprom_ptr log_inf;

struct one_log{
	uint32_t	time;
	uint16_t	vcc;
	uint16_t	baro;
	int16_t		b_temp;
	uint16_t	humi;
	int16_t		h_temp;
	uint16_t	lux;
};		// 16 bytes total

one_log lg;
uint8_t bf[PKT_SIZE];

extern float baro;
extern float baro_temp;
extern float cal_vcc;
extern float lux;
extern float humidity;
extern float humidity_temp;
extern float lux;

//  ROM / Constant data ---------------------------------------------------------------------------
static char *const mon_msg = "Monitor for mbed system, created on "__DATE__"";

//                      $, 2014/6/29,12:43:16,3.293,1004.5,+29.3,45.8,+29.2,1234,*
char *const log_head = "$,YYYY/MM/DD,HH:MM:SS,Vcc  ,Press ,Temp ,Humi,Temp ,Lux  ,*";
char *const msg_emty = "Data empty";

//  Function prototypes ---------------------------------------------------------------------------
extern void mon_hw(void);

//-------------------------------------------------------------------------------------------------
//  Control Program
//-------------------------------------------------------------------------------------------------
//  Put \r\n
void put_rn ( void ){	PUTC('\r');		PUTC('\n');}

//  Put \r
void put_r ( void ){	PUTC('\r');}

// Put ", "
void put_lin ( void ){	PRINTF(", ");}

// Put space n
void put_spc( uint8_t n){	for(;n > 0; n--){ PUTC(' '); }}

//  Change string -> integer
int xatoi (char **str, unsigned long *res){
unsigned long val;
unsigned char c, radix, s = 0;

    while ((c = **str) == ' ') (*str)++;
    if (c == '-') {
        s = 1;
        c = *(++(*str));
    }
    if (c == '0') {
        c = *(++(*str));
        if (c <= ' ') {	*res = 0;	return 1; }
        if (c == 'x') {
            radix = 16;
            c = *(++(*str));
        } else {
            if (c == 'b') {
                radix = 2;
                c = *(++(*str));
            } else {
                if ((c >= '0')&&(c <= '9')){	radix = 8;
                }	else {   return 0;}
            }
        }
    } else {
        if ((c < '1')||(c > '9')){	return 0;}
        radix = 10;
    }
    val = 0;
    while (c > ' ') {
        if (c >= 'a') c -= 0x20;
        c -= '0';
        if (c >= 17) {
            c -= 7;
            if (c <= 9) return 0;
        }
        if (c >= radix) return 0;
        val = val * radix + c;
        c = *(++(*str));
    }
    if (s) val = -val;
    *res = val;
    return 1;
}

//-------------------------------------------------------------------------------------------------
// Data Logging / Save into EEPROM
//-------------------------------------------------------------------------------------------------
// Read buffer pointer
static void dtlog_pointer_read(void){
uint8_t i;
uint8_t *addr;

    /* Read EEPROM and save to buf_pointer[] */
    for ( i = 0; i < PTR_SIZE; i++ ){
        addr = (uint8_t *)(EEP_TOP + i);
        buf_pointer[i]  = at24c1024.read((int)addr);
        wait(0.002);
    }
}

//  Make one data packet data structure
void dtlog_data_pack(void){
struct tm t;

    xm41t62.read_rtc_std(&t);
    lg.time = mktime(&t);
    bf[0] = (uint8_t)(lg.time >> 24);
    bf[1] = (uint8_t)(lg.time >> 16);
    bf[2] = (uint8_t)(lg.time >> 8);
    bf[3] = (uint8_t)(lg.time >> 0);
    lg.vcc = (uint16_t)(cal_vcc * 1000);
    bf[4] = (uint8_t)(lg.vcc >> 8);
    bf[5] = (uint8_t)(lg.vcc >> 0);
    lg.baro = (uint16_t)(baro * 10);
    bf[6] = (uint8_t)(lg.baro >> 8);
    bf[7] = (uint8_t)(lg.baro >> 0);
    lg.b_temp = (int16_t)(baro_temp * 10);
    bf[8] = (uint8_t)(lg.b_temp >> 8);
    bf[9] = (uint8_t)(lg.b_temp >> 0);
    lg.humi = (uint16_t)(humidity * 10);
    bf[10] = (uint8_t)(lg.humi >> 8);
    bf[11] = (uint8_t)(lg.humi >> 0);
    lg.h_temp = (int16_t)(humidity_temp * 10);
    bf[12] = (uint8_t)(lg.h_temp >> 8);
    bf[13] = (uint8_t)(lg.h_temp >> 0);
    lg.lux = (uint16_t)lux;
    bf[14] = (uint8_t)(lg.lux >> 8);
    bf[15] = (uint8_t)(lg.lux >> 0);
}

//  Print one packet as normalized data
void print_one_block_data(void){
struct tm *t;
time_t seconds;
uint16_t dt0;
int16_t dt1;

    put_rn();
    PUTC( '$' );
    //--- Time
    seconds = (time_t)bf[0] * 16777216 + (time_t)bf[1] * 65536 + (time_t)bf[2] * 256 + (time_t)bf[3];
	//PRINTF(",0x%x,",seconds);
    t = localtime(&seconds);
	PRINTF(",%04d/%02d/%02d,%02d:%02d:%02d,",
			t->tm_year + 1900, t->tm_mon + 1, t->tm_mday, t->tm_hour, t->tm_min, t->tm_sec);
	//--- Vcc
	dt0 = (uint16_t)bf[4] * 256 + (uint16_t)bf[5];
	//PRINTF("0x%x,",dt0);
	PRINTF("%01d.%03d,", dt0/1000, dt0%1000);
	//--- Pressure
	dt0 = (uint16_t)bf[6] * 256 + (uint16_t)bf[7];
	//PRINTF("0x%x,",dt0);
	PRINTF("%04d.%01d,", dt0/10, dt0%10 );
	//--- Temp.
	dt1 = (int16_t)bf[8] * 256 + (int16_t)bf[9];
	//PRINTF("0x%x,",dt1);
	PRINTF("%\+-03d.%01d,", dt1/10, abs(dt1)%10 );
	//--- Humidity	   
	dt0 = (uint16_t)bf[10] * 256 + (uint16_t)bf[11];
	//PRINTF("0x%x,",dt0);
	PRINTF("%02d.%01d,", dt0/10, dt0%10 );
	//--- Temp.
	dt1 = (int16_t)bf[12] * 256 + (int16_t)bf[13];
	//PRINTF("0x%x,",dt1);
	PRINTF("%\+-03d.%01d,", dt1/10, abs(dt1)%10 );
	//--- Lux
	dt0 = (uint16_t)bf[14] * 256 + (uint16_t)bf[15];
	//PRINTF("0x%x",dt0);
	PRINTF("%05d,*", dt0);
}

//  Read block data
static void dtlog_blk_read(xEeprom_ptr *read_inf){
uint8_t i;
uint8_t *addr;

    PRINTF( log_head );
    for ( ; ; ){
        /* Read EEPROM and save to data_pack[] */
        for (i = 0; i < PKT_SIZE; i++){
            addr = (uint8_t *)(EEP_TOP + (read_inf->ptr * PTR_SIZE) + i);
            bf[i]  =at24c1024.read((int)addr);
            wait(0.002);
        }
        print_one_block_data();
        wait(0.001);
        if (++read_inf->ptr >= read_inf->max){
            break;
        }
        if (READABLE() != 0){
            break;
        }
    }
    put_rn();
}

//  Write one packet
void dtlog_one_write(void){
xEeprom_ptr write_inf;
uint8_t i;
uint8_t *addr;

    /* Read buffer pointer */
    dtlog_pointer_read();
    write_inf.wr_pointer = READ_POINTER();
    write_inf.status = RD_STATUS();
    if (write_inf.status == BUF_FULL){  return;}
    /* Write data_pack[] into  EEPROM */
    for (i = 0; i < PKT_SIZE; i++){
        addr = (uint8_t *)(EEP_TOP + (write_inf.wr_pointer * PTR_SIZE) + i); 
        at24c1024.write((int)addr, bf[i]);
        wait(0.008);
    }
    /* Write buffer pointer */
    if (++write_inf.wr_pointer == BLK_NO){
        write_inf.status = BUF_FULL;
    } else {
        write_inf.status = 0;
    }
    WRITE_POINTER(write_inf.wr_pointer);
    WR_STATUS(write_inf.status); 
    for (i = 0; i < PTR_SIZE; i++){
        addr = (uint8_t *)(EEP_TOP + i);    
        at24c1024.write((int)addr, buf_pointer[i]);
        wait(0.008);
    }   
}

//  Read Data Pointer Information
void dtlog_rd_buf_inf(xEeprom_ptr *log_ptr_inf){
    dtlog_pointer_read();
    log_ptr_inf->wr_pointer = READ_POINTER();
    log_ptr_inf->status = RD_STATUS();  
}

//  Clear all buffer
void dtlog_clear_all_buff(xEeprom_ptr *log_ptr_inf){
uint8_t i;
uint8_t *addr;

    /* Set initial data */
    WRITE_POINTER(1);
    log_ptr_inf->wr_pointer = 1;
    WR_STATUS(0);
    log_ptr_inf->status = 0;
    log_ptr_inf->max = BLK_NO;
    log_ptr_inf->ptr = 1;
    log_ptr_inf->size = BLK_SIZE;   
    /* Write buffer pointer */
    for (i = 0; i < PTR_SIZE; i++){
        addr = (uint8_t *)(EEP_TOP + i);
        at24c1024.write((int)addr, buf_pointer[i]);
        wait(0.008);
    }
}

// Read some block from buffer
void dtlog_block_read(xEeprom_ptr *read_inf){
    if (read_inf->wr_pointer == BUF_HEAD){ // Check pointer
        PRINTF(msg_emty);
        put_rn();
        return;
    }
    if (read_inf->ptr >= read_inf->wr_pointer){
        PRINTF("Reach to end!");
        put_rn();
        return;
    }
    if (read_inf->wr_pointer > (read_inf->ptr + read_inf->size)){
        read_inf->max = read_inf->ptr + read_inf->size;
    } else {
        read_inf->max = read_inf->wr_pointer;
    }
    dtlog_blk_read(read_inf);
}

// EEPROM buffer occupation 
uint16_t dtlog_buf_occupation(void){
    return (uint16_t)(((uint32_t)READ_POINTER() * 1000 )/ BLK_NO);
}

//  Read block number
void dtlog_num_of_block(xEeprom_ptr *read_inf){
uint16_t dt;

    if (read_inf->wr_pointer == BUF_HEAD){
        PRINTF(msg_emty);
        put_rn();
        return;
    }
    dt = read_inf->wr_pointer - 1;
    PRINTF("Number of data = %d", dt);    
    put_rn();
    dt = dtlog_buf_occupation();
    PRINTF("EEPROM Occupation = %d.%01d%%", dt/10, dt%10);
    put_rn();
}

//-------------------------------------------------------------------------------------------------
//	Monitor
//-------------------------------------------------------------------------------------------------
//  Help Massage
void msg_hlp (void){
    PRINTF(mon_msg);						put_rn();
    PRINTF("d - Data logger");				put_rn();
    PRINTF("t - Check and set RTC");		put_rn();
    PRINTF("x - Goto HW monitor");			put_rn();
    PRINTF("q - Return to main");			put_rn();
}

//  Get key input data
void get_line (char *buff, int len){
char c;
int idx = 0;

    for (;;) {
        c = GETC();
        //    Added by Kenji Arai / JH1PJL   May 9th, 2010
        if (c == '\r') {
            buff[idx++] = c;
            break;
        }
        if ((c == '\b') && idx) {
            idx--;
            PUTC(c);
            PUTC(' ');
            PUTC(c);
        }
        if (((uint8_t)c >= ' ') && (idx < len - 1)) {
            buff[idx++] = c;
            PUTC(c);
        }
    }
    buff[idx] = 0;
    PUTC('\n');
}


// RTC related subroutines
void chk_and_set_time(char *ptr){
unsigned long p1;
struct tm t;

	if (xatoi(&ptr, &p1)){
		t.tm_year		= (uint8_t)p1 + 100;
		PRINTF("Year:%d ",p1);
		xatoi( &ptr, &p1 );
		t.tm_mon		= (uint8_t)p1 - 1;
		PRINTF("Month:%d ",p1);
		xatoi( &ptr, &p1 );
		t.tm_mday		= (uint8_t)p1;
		PRINTF("Day:%d ",p1);
		xatoi( &ptr, &p1 );
		t.tm_hour		= (uint8_t)p1;
		PRINTF("Hour:%d ",p1);
		xatoi( &ptr, &p1 );
		t.tm_min    	= (uint8_t)p1;
		PRINTF("Min:%d ",p1);
		t.tm_sec 		= (uint8_t)p1;
		PRINTF("Sec: %d \r\n",p1);
		xm41t62.write_rtc_std(&t);
	}
    xm41t62.read_rtc_std(&t);
    // Show Time with several example
    // ex.1
    PRINTF("Date: %04d/%02d/%02d, %02d:%02d:%02d\r\n",
    		t.tm_year + 1900, t.tm_mon + 1, t.tm_mday, t.tm_hour, t.tm_min, t.tm_sec);
#if 0
time_t seconds;
char buf[40];
	
	seconds = mktime(&t);
    // ex.2
    strftime(buf, 40, "%x %X", localtime(&seconds));
    PRINTF("Date: %s\r\n", buf);
    // ex.3
    strftime(buf, 40, "%I:%M:%S %p (%Y/%m/%d)", localtime(&seconds));
    PRINTF("Date: %s\r\n", buf);
    // ex.4
    strftime(buf, 40, "%B %d,'%y, %H:%M:%S", localtime(&seconds));
    PRINTF("Date: %s\r\n", buf);
#endif
}

//	Data Logger / Check status and Output data
static void data_logger(char *ptr){
char c;
unsigned long dt;
char *const Msg  = "Data Logger Mode, ?[Help]";

	PRINTF(Msg);
	put_rn();
	/* Get EEPROM resource */
	dtlog_rd_buf_inf(&log_inf);
	while (1){
		PRINTF("DL>");
        ptr = linebuf;
        get_line(ptr, buf_size);
		switch (*ptr++) {
			case 'a' :
				put_r();
				log_inf.ptr = BUF_HEAD;
				log_inf.size = log_inf.wr_pointer;
				dtlog_block_read(&log_inf);
				log_inf.ptr = BUF_HEAD;
				log_inf.size = BLK_SIZE;
				break;
			case 'c' :	// Clear data
				put_r();
				PRINTF("Delete all data?");
				put_rn();
				PRINTF("Enter y/n (n-cancel)");
				put_rn();
				c = GETC();
				PUTC(c);
				put_rn();
				if (c == 'y'){
					PRINTF("Cleared all logging data");
					dtlog_clear_all_buff(&log_inf);
				} else {
					PRINTF("Canceled");
				}
				put_rn();
				break;
			case 'd' :	// d <pointer> [<count>] - Dump buffer
				put_r();
				log_inf.size = BLK_SIZE;
				if (xatoi(&ptr, &dt)){	log_inf.ptr = (uint16_t)dt;
				} else {				log_inf.ptr = BUF_HEAD;		}	
				if (xatoi(&ptr, &dt)){	log_inf.size = (uint8_t)dt;				
				} else {				log_inf.size = BLK_SIZE;	}
				dtlog_block_read(&log_inf);
				break;
			case 0x0d :	// CR
				put_r();
				log_inf.size = BLK_SIZE;
				dtlog_block_read(&log_inf);
				break;
			case 'b' :	// Back
				put_r();
				log_inf.size = BLK_SIZE;
				if (log_inf.ptr > log_inf.size){
					log_inf.ptr -= log_inf.size;
					if (log_inf.ptr == 0){
						log_inf.ptr = 1;
						--log_inf.size;
					}
				} else {
					log_inf.size = log_inf.ptr - 1;
					log_inf.ptr = 1;
				}
				dtlog_block_read(&log_inf);
				break;
			case 'n' :
			case 's' :	// Status
				put_r();
				dtlog_num_of_block(&log_inf);
				break;
			case 'q' :	// exit
				linebuf[0] = 0;
				return;
			case '?' :
				put_r();
			    PRINTF("d - <pointer> [<count>] Dump one block data");	put_rn();
			    PRINTF("a - Dump all log data");		put_rn();
			    PRINTF("c - Clear log data");			put_rn();
			    PRINTF("s - Logger status");			put_rn();
			    PRINTF("q - Exit DL mode");				put_rn();  
				break;
			default:
				PUTC('?');
				put_rn();
				break;
		}
	}
}

// ---------- Program starts here! ---------------------------------------------------------------
int mon(void) {
char *ptr;

    BAUD(9600);
    put_rn();
    put_rn();
    PRINTF("%s [Help:'?' key]", mon_msg);
    put_rn();
    for (;;) {
        put_r();
        PUTC('>');
        ptr = linebuf;
        get_line(ptr, sizeof(linebuf));
        switch (*ptr++) {
    //---------------------------------------------------------------------------------
    //  check and set RTC
    //---------------------------------------------------------------------------------
        case 't' :
        	put_r(); 
            chk_and_set_time(ptr);               
            break;
    //---------------------------------------------------------------------------------
    //  check EEPROM status
    //---------------------------------------------------------------------------------
        case 'd' :
        	put_r(); 
            data_logger(ptr);               
            break;
    //---------------------------------------------------------------------------------
    //  help
    //---------------------------------------------------------------------------------
        case '?' :
        	put_r(); 
            msg_hlp();                 
            break;
    //---------------------------------------------------------------------------------
    //  Go to special command
    //---------------------------------------------------------------------------------
        case 'x' :    // 
            mon_hw();
            PRINTF("->Came back monitor\r\n");            
            break;
    //---------------------------------------------------------------------------------
    //  Go back to main()
    //---------------------------------------------------------------------------------
        case 'q' :        // Quit
            PRINTF("\rReturn to main\r\n");
            PRINTF("cannot control anymore from here\r\n");
            return 0;
        }
    }
}