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#include <avr/io.h>
#include <stdio.h>
#include <string.h>
#include <util/delay.h>
#include "i2c.h"
#include "br24t_eeprom_driver.h"
#include "uart.h"
#include "pins.h"
#include "debug.h"
#define EEPROM_ADDR 0x57
#define EEPROM_PAGE_SIZE 64
//for burning eeprom
#define MAGIC_SYN 0xdeadbeef
#define MAGIC_ACK 0xf00dd00d
#define PAGE_WRITE_OK 0x00
#define PAGE_WRITE_CORRUPTED 0x01
#define PAGE_WRITE_UNKNOWN_ERROR 0xff
#ifdef FLASH_EEPROM
int main() {
LED_DEBUG_DDR |= _BV(LED_DEBUG); //TODO move to debug file or somethin
LED_DEBUG_PORT &= ~(_BV(LED_DEBUG));
i2c_init();
uart_debug_init();
FILE stdout_replacement = FDEV_SETUP_STREAM((void *)uart_debug_sendbyte, NULL, _FDEV_SETUP_WRITE);
FILE stdin_replacement = FDEV_SETUP_STREAM(NULL, (void *)uart_debug_recvbyte, _FDEV_SETUP_READ);
stdout = &stdout_replacement;
stdin = &stdin_replacement;
printf("booted\r\n\r\n");
uart_flash_init();
flash_eeprom();
return 0;
}
void flash_eeprom() {
unsigned int page_len;
unsigned int on_byte;
uint8_t eeprom_buffer_out[EEPROM_PAGE_SIZE];
uint8_t eeprom_buffer_in[EEPROM_PAGE_SIZE];
/**
FILE master_f = FDEV_SETUP_STREAM((void *)uart_flash_sendbyte, NULL, _FDEV_SETUP_WRITE);
**/
FILE master_fin = FDEV_SETUP_STREAM(NULL, (void *)uart_flash_recvbyte, _FDEV_SETUP_READ);
FILE master_fout = FDEV_SETUP_STREAM((void *)uart_flash_sendbyte, NULL, _FDEV_SETUP_WRITE);
FILE master_f;
char temp_buffer[15];
int blah = 0;
int debug = 0;
unsigned int tots_blah = 0;
for(;;) {
if(blah > 9) blah = 0;
blah++;
tots_blah++;
debug = fread(temp_buffer, 12, 1, &master_fin);
printf("PACKET %i : fread status: %i, error: %i, eof: %i\r\n", tots_blah, debug, ferror(&master_fin), feof(&master_fin));
printf("recv: %s\r\n\r\n\r\n", temp_buffer);
snprintf(temp_buffer, 12, "debugstr %i\r\n", blah);
printf("sending \"%s\"...\r\n", temp_buffer);
fwrite(temp_buffer, 12, 1, &master_fout);
memset(temp_buffer, 0, 12);
}
printf("waiting for master\r\n");
fread(&page_len, 1, 1, &master_f);
printf("%i pages total\r\n", page_len);
for(int page = 0; page < page_len; page++) {
printf("writing page %i...\r\n", page);
fread(eeprom_buffer_out, EEPROM_PAGE_SIZE, 1, &master_f);
fputc(PAGE_WRITE_CORRUPTED, &master_f);
i2c_start(EEPROM_I2C_ADDR, I2C_READ);
i2c_send((uint8_t)(page * EEPROM_PAGE_SIZE) & 0xff);
i2c_send((uint8_t)(page * EEPROM_PAGE_SIZE) >> 8);
for(on_byte = 0; on_byte < EEPROM_PAGE_SIZE; on_byte++)
i2c_send(eeprom_buffer_out[on_byte]);
i2c_stop();
//verify
eeprom_buffer_in[0] = EEPROM_READBYTE(page * EEPROM_PAGE_SIZE);
//eeprom_buffer_in[0] = i2c_read_reg_addr16(EEPROM_I2C_ADDR, page * EEPROM_PAGE_SIZE);
i2c_start(EEPROM_I2C_ADDR, I2C_READ);
for(on_byte = 1; on_byte < EEPROM_PAGE_SIZE; on_byte++)
eeprom_buffer_in[on_byte] = i2c_recv();
i2c_stop();
if(memcmp(eeprom_buffer_in, eeprom_buffer_out, EEPROM_PAGE_SIZE)) {
fputc(PAGE_WRITE_CORRUPTED, &master_f);
printf("invalid checksum on page %i!", page);
}
fputc(PAGE_WRITE_OK, &master_f);
}
printf("If you ever read this, you should be happy\r\n");
}
#endif
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