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#include "bios_funs.h"
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#include "bios_funs.h"
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#include "avr_cfg.h"
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#include <inttypes.h>
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#include <inttypes.h>
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#include <avr/interrupt.h>
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#include <avr/interrupt.h>
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#include <avr/wdt.h>
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#include <avr/boot.h>
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#include <avr/pgmspace.h>
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#include <avr/pgmspace.h>
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#include <avr/io.h>
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#include <avr/io.h>
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#include <stdio.h>
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#include <stdio.h>
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#include "app_vectors.h"
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//---------------------------------------------------------------------------
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// Globals
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volatile long gMilliSecTick;
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//---------------------------------------------------------------------------
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//---------------------------------------------------------------------------
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// Function definitions for the exported interface
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// Function definitions for the exported interface
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void reset(void) {
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    //Just loop and let the watchdog reset
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    cli();
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    while(1);
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};
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int bios_putchar(char c, FILE *stream) {
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void bios_putchar(char c) {
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    loop_until_bit_is_set(UCSRA, UDRE);
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    loop_until_bit_is_set(UCSRA, UDRE);
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    UDR = c;
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    UDR = c;
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    return 0;
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};
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};
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int bios_getchar(FILE *stream) {
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char bios_getchar(void) {
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    loop_until_bit_is_set(UCSRA, RXC);
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    loop_until_bit_is_set(UCSRA, RXC);
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    return UDR;
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    return UDR;
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};
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};
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void bios_reset(void) {
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long timebase_get(void) {
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    bios_putchar('\n', 0);
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    uint8_t sreg;
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    long res;
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};
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    //Disable interrupts while reading tick count
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    sreg=SREG;
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    cli();
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unsigned bios_version(void) {
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    res = gMilliSecTick;
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    SREG=sreg;
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    return BIOS_VERSION;
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    return res;
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};
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}
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//---------------------------------------------------------------------------
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//---------------------------------------------------------------------------
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// Function definitions for the private functions
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// Function definitions for the private functions
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void program_page (uint32_t page, uint8_t *buf)
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static uint16_t flash_prev_addr;
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{
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    uint16_t i;
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void flash_flush_buffer() {
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    uint8_t sreg;
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    uint8_t sreg;
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    // Disable interrupts.
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    // Disable interrupts.
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    sreg = SREG;
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    sreg = SREG;
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    cli();
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    cli();
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    eeprom_busy_wait ();
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    eeprom_busy_wait();
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    boot_page_erase (page);
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    boot_page_erase(flash_prev_addr);
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    boot_spm_busy_wait ();      // Wait until the memory is erased.
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    boot_spm_busy_wait();      // Wait until the memory is erased.
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    for (i=0; i<SPM_PAGESIZE; i+=2)
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    {
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        // Set up little-endian word.
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        uint16_t w = *buf++;
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        w += (*buf++) << 8;
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        boot_page_fill (page + i, w);
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    }
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    boot_page_write (page);     // Store buffer in flash page.
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    boot_page_write(flash_prev_addr);     // Store buffer in flash page.
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    boot_spm_busy_wait();       // Wait until the memory is written.
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    boot_spm_busy_wait();       // Wait until the memory is written.
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    // Reenable RWW-section again. We need this if we want to jump back
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    // Reenable RWW-section again. We need this if we want to jump back
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    // to the application after bootloading.
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    // to the application after bootloading.
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    // Re-enable interrupts (if they were ever enabled).
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    // Re-enable interrupts (if they were ever enabled).
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    SREG = sreg;
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    SREG = sreg;
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}
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}
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void flash_load_buffer(uint16_t addr) {
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    //TODO: Load current flash page contents into temporary buffer to implement
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    // flash read-modify-writes with word granularity. (If possible, the data
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    // sheet is a little fuzzy about this.)
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}
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void flash_write_word(uint16_t addr, uint16_t word) {
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    if ((addr / SPM_PAGESIZE) != (flash_prev_addr / SPM_PAGESIZE)) {
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        flash_flush_buffer();
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        flash_load_buffer(addr);
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    }
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    boot_page_fill(addr, word);
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    flash_prev_addr = addr;
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}    
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void flash_init() {
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    flash_prev_addr = 0xffff;
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}
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static int console_getchar(FILE *stream) {
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    return bios->can_receive();
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}
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static int console_putchar(char c, FILE *stream) {
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    bios->can_send(c);
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    return 0;
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}
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static FILE bios_stdio = FDEV_SETUP_STREAM(bios_putchar, bios_getchar,
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static FILE bios_stdio = FDEV_SETUP_STREAM(console_putchar, console_getchar,
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                                         _FDEV_SETUP_RW);
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                                         _FDEV_SETUP_RW);
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//---------------------------------------------------------------------------
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// Interrupt Service Routines
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// Read app_vectors.h!
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ISR(TIMEBASE_VECTOR) {
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    TIMEBASE_COUNTER -= TIMEBASE_RELOAD;
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    gMilliSecTick++;
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    wdt_reset();
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}
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int main() {
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int main() {
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    void (*app_reset)(void) = 0;
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    void (*app_reset)(void) = 0;
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    // Setup USART for debug channel
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    // Setup USART for debug channel
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    UCSRB = _BV(RXEN)|_BV(TXEN);
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    UCSRB = _BV(RXEN)|_BV(TXEN);
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    UBRRL = (F_CPU / 16 / F_BAUD) - 1;
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    UBRRL = (F_CPU / 16 / F_BAUD) - 1;
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    stdout = &bios_stdio;
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    stdout = &bios_stdio;
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    stdin = &bios_stdio;
 133 
    stdin = &bios_stdio;
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 134 
   
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 135 
    // Initialize a suitable hardware timer to create a 1KHz interrupt.
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 136 
    TIMEBASE_INIT();
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 137 
   
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    // Enable watchdog timer to protect against an application locking the
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 139 
    // node by leaving interrupts disabled.
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 140 
    wdt_enable(WDTO_500MS);
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 142 
    // Move interrupt vectors to start of bootloader section and enable interrupts
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 143 
    GICR = _BV(IVCE);
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 144 
    GICR = _BV(IVSEL);
82 
    bios->reset();
 145 
    sei();
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 146 
   
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    printf("AVR BIOS\n");
 147 
    printf("AVR BIOS\n");
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 149 
    if (pgm_read_word(0) != 0xffff) {
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 150 
        printf("Starting application.\n");
84 
    app_reset();
 151 
        app_reset();
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 152 
    }
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 153 
   
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 154 
    printf("No application found.\n");
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    return 0;
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    return 0;
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}
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}