// Прошивка для удаленного радиомодуля

#include <avr/io.h>
#include <stdio.h>
#include <avr/interrupt.h>
#include "uart/uart.h"
#include "uart/uart_addon.h"
#include "onewire/onewire.h"
#include "res/strings.h"

#define UART_BAUD_RATE      19200  

unsigned char get_uart_char(void){
	unsigned int res;
	do{
		res = uart_getc();
	} while(res & UART_NO_DATA);
	return (unsigned char) res;
}

static int get_uart_line(char *pbuf, int len_ln){
	int i = 0;
	unsigned char c;
    len_ln=len_ln-1;
       
	while((c=get_uart_char()) != 0x0D && i<len_ln){
		uart_putc(c);
		pbuf[i] = c;
		i=i+1;
	}
	pbuf[i] = '\0';
	return i;
}

void getListDevices(void){
	uint8_t i;
	uint8_t id[OW_ROMCODE_SIZE];
	uint8_t diff, nSensors;

	uart_puts_p(ScanStr);
	ow_reset();
	nSensors = 0;
	diff = OW_SEARCH_FIRST;
	while ( diff != OW_LAST_DEVICE) {
		diff = ow_rom_search( diff, &id[0] );
		if ( diff != OW_PRESENCE_ERR && diff != OW_DATA_ERR) { 
			for ( i=0; i < OW_ROMCODE_SIZE; i++ ){
				uart_puthex_byte(id[i]);
				uart_putc(' ');
			}
			uart_puts(CRLF);
		}
		nSensors++;
	}	
	uart_put_int(nSensors);
} 

int main(void){
	
	uart_init(UART_BAUD_SELECT(UART_BAUD_RATE,F_CPU));
	#ifndef OW_ONE_BUS
		ow_set_bus(&PIND,&PORTD,&DDRD,PD6);
	#endif

	sei();
	char cmd[5];
	unsigned int len_line=0;

	while(1){
		uart_puts_p(CmdPrompt);
		len_line=get_uart_line(&cmd[0],sizeof(cmd));
		if (len_line>0){
			if (strcmp_P(cmd, CmdLD)==0){
				getListDevices();
			}
			if (strcmp_P(cmd, CmdHelp)==0){
				uart_puts_p(HelpTitle);
				uart_puts_p(HelpItem1);
				uart_puts_p(HelpItem2);
			}
		}
	}
}