// Прошивка для серверного радиомодуля

#include <avr/io.h>
#include <stdio.h>
#include <string.h> 
#include <avr/interrupt.h>
#include <util/delay.h>
#include "uart/uart.h"
#include "uart/uart_addon.h"
#include "res/strings.h"
#include "nrf24l01/nrf24l01.h"

#define UART_BAUD_RATE      9600  

typedef struct t_data{
	uint8_t		from;
	uint8_t		to;
	char		cmd[5];
    uint8_t		value[25];
}t_data;

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

static uint8_t get_uart_line(char *pbuf, uint8_t len_ln){
	uint8_t 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;
}

uint8_t mac[NRF24L01_ADDRSIZE] = {0xF0, 0xF0, 0xF0, 0xF0, 0xF0};
		
int main(void){
	
	t_data	data;
	uint8_t i;

	uart_init(UART_BAUD_SELECT(UART_BAUD_RATE,F_CPU));
	nrf24l01_init();

	sei();

	nrf24l01_settxaddr(mac);	
	for (i=1; i<6; i++){
		mac[4] = 0xF0 & ( 0x0F & i);
		nrf24l01_setrxaddr(i, mac);	
	}

	uart_puts_p(CmdPrompt);
	
	while(1){
		if (!(UCSRA & (1 << RXC))){
			i=get_uart_line(&data.cmd[0],sizeof(data.cmd));
			if (i>0){
				data.from = 0;
				data.to = 0xFF;
				if (strcmp(data.cmd, CmdLD)==0){
						
					i = nrf24l01_write((uint8_t*) &data);

        			if(i == 1){                    
	            		uart_puts_p(TransOK);
    	    		}else{                    
	        	    	uart_puts_p(TransLost);    
    	    		}
					uart_puts_p(CmdPrompt);
				}
				if (strcmp(data.cmd, CmdHelp)==0){
					uart_puts_p(HelpTitle);
					uart_puts_p(HelpItem1);
					uart_puts_p(HelpItem2);
					uart_puts_p(CmdPrompt);
				}
			}
		}
		if(nrf24l01_readready(0)){
			nrf24l01_read((uint8_t*) &data);
			uart_puts(data.cmd);
			uart_putc('-');
			uart_puthex_byte(data.from);
			uart_putc('>');
			uart_puthex_byte(data.to);
			uart_putc(':');
			for ( i=0; i < sizeof(data.value); i++ ){
				uart_puthex_byte(data.value[i]);
				uart_putc(' ');
			}
			uart_puts(CRLF);
        }
	}
}