int
main (void)
{
#ifdef BOOTLOADER_SUPPORT
_IVREG = _BV (IVCE); /* prepare ivec change */
_IVREG = _BV (IVSEL); /* change ivec to bootloader */
#endif
/* Default DDR Config */
#if IO_HARD_PORTS >= 4 && DDR_MASK_A != 0
DDRA = DDR_MASK_A;
#endif
#if DDR_MASK_B != 0
DDRB = DDR_MASK_B;
#endif
#if DDR_MASK_C != 0
DDRC = DDR_MASK_C;
#endif
#if DDR_MASK_D != 0
DDRD = DDR_MASK_D;
#endif
#if IO_HARD_PORTS >= 6
#if DDR_MASK_E != 0
DDRE = DDR_MASK_E;
#endif
#if DDR_MASK_F != 0
DDRF = DDR_MASK_F;
#endif
#endif
#if IO_HARD_PORTS >= 7
#if DDR_MASK_G != 0
DDRG = DDR_MASK_G;
#endif
#endif
#ifdef STATUSLED_POWER_SUPPORT
PIN_SET(STATUSLED_POWER);
#endif
//FIXME: zum ethersex meta system hinzufügen, aber vor allem anderem initalisieren
debug_init();
debug_printf("%S (Debug mode)\n", pstr_E6_VERSION_STRING_LONG);
#ifdef DEBUG_RESET_REASON
if (bit_is_set (mcusr_mirror, BORF))
debug_printf("reset: Brown-out\n");
else if (bit_is_set (mcusr_mirror, PORF))
debug_printf("reset: Power on\n");
else if (bit_is_set (mcusr_mirror, WDRF))
debug_printf("reset: Watchdog\n");
else if (bit_is_set (mcusr_mirror, EXTRF))
debug_printf("reset: Extern\n");
else
debug_printf("reset: Unknown\n");
#endif
#ifdef BOOTLOADER_SUPPORT
/* disable interrupts */
cli ();
wdt_disable();
#endif //BOOTLOADER_SUPPORT
/* enable interrupts */
sei ();
#ifdef USE_WATCHDOG
debug_printf("enabling watchdog\n");
#ifdef DEBUG
/* for debugging, test reset cause and jump to bootloader */
if (MCU_STATUS_REGISTER & _BV (WDRF))
{
debug_printf("bootloader...\n");
jump_to_bootloader();
}
#endif
/* set watchdog to 2 seconds */
wdt_enable(WDTO_2S);
wdt_kick();
#else //USE_WATCHDOG
debug_printf("disabling watchdog\n");
wdt_disable();
#endif //USE_WATCHDOG
#ifdef SPI_SUPPORT
spi_init();
#endif
ethersex_meta_init();
/* must be called AFTER all other initialization */
#ifdef PORTIO_SUPPORT
portio_init();
#elif defined(NAMED_PIN_SUPPORT)
np_simple_init();
#endif
#ifdef ENC28J60_SUPPORT
debug_printf ("enc28j60 revision 0x%x\n",
read_control_register (REG_EREVID));
debug_printf ("mac: %02x:%02x:%02x:%02x:%02x:%02x\n",
uip_ethaddr.addr[0], uip_ethaddr.addr[1], uip_ethaddr.addr[2],
uip_ethaddr.addr[3], uip_ethaddr.addr[4], uip_ethaddr.addr[5]);
#endif
#ifdef STATUSLED_BOOTED_SUPPORT
PIN_SET(STATUSLED_BOOTED);
#endif
ethersex_meta_startup();
/* main loop */
while (1)
{
wdt_kick();
ethersex_meta_mainloop();
#ifdef SD_READER_SUPPORT
if (sd_active_partition == NULL)
{
if (!sd_try_init())
{
#ifdef VFS_SD_SUPPORT
vfs_sd_try_open_rootnode();
#endif
}
wdt_kick();
}
#endif
#ifdef BOOTLOADER_JUMP
if (status.request_bootloader)
{
#ifdef MBR_SUPPORT
mbr_config.bootloader = 1;
write_mbr();
#endif
#ifdef CLOCK_CRYSTAL_SUPPORT
TIMER_8_AS_1_INT_OVERFLOW_OFF;
#endif
#ifdef DCF77_SUPPORT
ACSR &= ~_BV (ACIE);
#endif
cli();
jump_to_bootloader();
}
#endif
#ifndef TEENSY_SUPPORT
if (status.request_wdreset)
{
cli();
wdt_enable(WDTO_15MS);
for (;;);
}
#endif
if (status.request_reset)
{
cli();
void (*reset) (void) = NULL;
reset();
}
}
}
int main(void)
{
#ifdef BOOTLOADER_SUPPORT
_IVREG = _BV(IVCE); /* prepare ivec change */
_IVREG = _BV(IVSEL); /* change ivec to bootloader */
#endif
/* Clear the MCUSR Register to avoid endless wdreset loops */
unsigned char reset_reason = 0;
#ifdef MCUCSR
reset_reason = MCUCSR;
MCUCSR = 0;
#else
#ifdef MCUSR
reset_reason = MCUSR;
MCUSR = 0;
#endif
#endif
/* Default DDR Config */
#if IO_HARD_PORTS == 4 && DDR_MASK_A != 0
DDRA = DDR_MASK_A;
#endif
#if DDR_MASK_B != 0
DDRB = DDR_MASK_B;
#endif
#if DDR_MASK_C != 0
DDRC = DDR_MASK_C;
#endif
#if DDR_MASK_D != 0
DDRD = DDR_MASK_D;
#endif
#if IO_HARD_PORTS == 6
#if DDR_MASK_E != 0
DDRE = DDR_MASK_E;
#endif
#if DDR_MASK_F != 0
DDRF = DDR_MASK_F;
#endif
#endif
#ifdef STATUSLED_POWER_SUPPORT
PIN_SET(STATUSLED_POWER);
#endif
//FIXME: zum ethersex meta system hinzufügen, aber vor allem anderem initalisieren
debug_init();
debug_printf("Ethersex " VERSION_STRING " (Debug mode)\n");
#ifdef DEBUG_RESET_REASON
if (bit_is_set(reset_reason, BORF)) debug_printf("reset: Brown-out\n");
else if (bit_is_set(reset_reason, PORF)) debug_printf("reset: Power on\n");
else if (bit_is_set(reset_reason, WDRF)) debug_printf("reset: Watchdog\n");
else if (bit_is_set(reset_reason, EXTRF)) debug_printf("reset: Extern\n");
else debug_printf("reset: Unknown\n");
#endif
#ifdef BOOTLOADER_SUPPORT
/* disable interrupts */
cli();
#else
/* enable interrupts */
sei();
#endif //BOOTLOADER_SUPPORT
#ifdef USE_WATCHDOG
debug_printf("enabling watchdog\n");
#ifdef DEBUG
/* for debugging, test reset cause and jump to bootloader */
if (MCUSR & _BV(WDRF)) {
debug_printf("bootloader...\n");
jump_to_bootloader();
}
#endif
/* set watchdog to 2 seconds */
wdt_enable(WDTO_2S);
wdt_kick();
#else //USE_WATCHDOG
debug_printf("disabling watchdog\n");
wdt_disable();
#endif //USE_WATCHDOG
#ifdef ADC_SUPPORT
/* ADC Prescaler to 64 */
ADCSRA = _BV(ADEN) | _BV(ADPS2) | _BV(ADPS1);
/* ADC set Voltage Reference to extern*/
/* FIXME: move config to the right place */
ADMUX = ADC_REF; //_BV(REFS0) | _BV(REFS1);
#endif
#if defined(RFM12_SUPPORT) || defined(ENC28J60_SUPPORT) \
|| defined(DATAFLASH_SUPPORT)
spi_init();
#endif
ethersex_meta_init();
#ifdef RFM12_SUPPORT
rfm12_init();
#ifdef TEENSY_SUPPORT
cli ();
rfm12_trans (0xa620); /* rfm12_setfreq(RFM12FREQ(433.92)); */
rfm12_trans (0x94ac); /* rfm12_setbandwidth(5, 1, 4); */
#ifdef RFM12_IP_SUPPORT
rfm12_trans (0xc610); /* rfm12_setbaud(192); */
rfm12_trans (0x9820); /* rfm12_setpower(0, 2); */
rfm12_rxstart();
#endif /* RFM12_IP_SUPPORT */
sei ();
#else /* TEENSY_SUPPORT */
rfm12_setfreq(RFM12FREQ(433.92));
rfm12_setbandwidth(5, 1, 4);
#ifdef RFM12_IP_SUPPORT
rfm12_setbaud(CONF_RFM12_BAUD / 100);
rfm12_setpower(0, 2);
rfm12_rxstart();
#endif /* RFM12_IP_SUPPORT */
#endif /* not TEENSY_SUPPORT */
#endif /* RFM12_SUPPORT */
/* must be called AFTER all other initialization */
#ifdef PORTIO_SUPPORT
portio_init();
#elif defined(NAMED_PIN_SUPPORT)
np_simple_init();
#endif
#ifdef ENC28J60_SUPPORT
debug_printf("enc28j60 revision 0x%x\n", read_control_register(REG_EREVID));
debug_printf("mac: %02x:%02x:%02x:%02x:%02x:%02x\n",
uip_ethaddr.addr[0],
uip_ethaddr.addr[1],
uip_ethaddr.addr[2],
uip_ethaddr.addr[3],
uip_ethaddr.addr[4],
uip_ethaddr.addr[5]
);
#endif
#ifdef STATUSLED_BOOTED_SUPPORT
PIN_SET(STATUSLED_BOOTED);
#endif
ethersex_meta_startup();
/* main loop */
while(1) {
wdt_kick();
ethersex_meta_mainloop();
#ifdef SD_READER_SUPPORT
if (sd_active_partition == NULL) {
if (! sd_try_init ())
vfs_sd_try_open_rootnode ();
wdt_kick();
}
#endif
#ifndef BOOTLOAD_SUPPORT
if(status.request_bootloader) {
#ifdef CLOCK_CRYSTAL_SUPPORT
_TIMSK_TIMER2 &= ~_BV(TOIE2);
#endif
#ifdef DCF77_SUPPORT
ACSR &= ~_BV(ACIE);
#endif
cli();
jump_to_bootloader();
}
#ifndef TEENSY_SUPPORT
if(status.request_wdreset) {
cli();
wdt_enable(WDTO_15MS);
for(;;);
}
#endif
if(status.request_reset) {
cli();
void (* reset)(void) = NULL;
reset();
}
#endif
}
}
int main(int argc, char *argv[]) {
/* Disable driver enable for RS485 ASAP */
//DDRC |= (1 << PC2);
//PORTC &= ~(1 << PC2);
/* init serial line debugging */
UBRR0H = UBRRH_VALUE;
UBRR0L = UBRRL_VALUE;
UCSR0B = (1 << RXCIE1) | (1 << RXEN1) | (1 << TXEN0);
UCSR0C = (1<<UCSZ00) | (1<<UCSZ01);
/* Initialize UART */
net_init();
DBG("READY!\r\n");
DBG("Initializing SPI...\r\n");
spi_init();
DBG("Initializing ENC28J60...\r\n");
init_enc28j60();
DBG("Initialized ENC28J60\r\n");
char obuf[64];
snprintf(obuf, sizeof(obuf), "enc28j60 rev 0x%x\n", read_control_register(REG_EREVID));
DBG(obuf);
char buf[16] = "serial: X\n";
int cnt = 0;
while (1) {
if (eth_to_rs_cnt > 0 &&
eth_to_rs[eth_to_rs_cnt-1] == '$') {
eth_to_rs[eth_to_rs_cnt-1] = '\0';
int dest = 0;
int pktlen = 0;
char minibuf[16];
minibuf[0] = eth_to_rs[1];
minibuf[1] = eth_to_rs[2];
minibuf[2] = '\0';
if (sscanf(minibuf, "%d", &dest) != 1) {
DBG("Could not parse dest\r\n");
eth_to_rs_cnt = 0;
continue;
}
minibuf[0] = eth_to_rs[3];
minibuf[1] = eth_to_rs[4];
if (sscanf(minibuf, "%d", &pktlen) != 1) {
DBG("Could not parse len\r\n");
eth_to_rs_cnt = 0;
continue;
}
if (pktlen != (eth_to_rs_cnt - 6)) {
DBG("lens are not the same\r\n");
minibuf[2] = '\r';
minibuf[3] = '\n';
minibuf[4] = '\0';
DBG(minibuf);
snprintf(minibuf, sizeof(minibuf), "e: %d\r\n", eth_to_rs_cnt-6);
DBG(minibuf);
snprintf(minibuf, sizeof(minibuf), "p: %d\r\n", pktlen);
DBG(minibuf);
eth_to_rs_cnt = 0;
continue;
}
fmt_packet(lbuffer, dest, 0xFF, eth_to_rs + 5, pktlen);
struct buspkt *packet = (struct buspkt*)lbuffer;
send_packet(packet);
syslog_send("sent packet", strlen("sent packet"));
_delay_ms(25);
sendit = 0;
eth_to_rs_cnt = 0;
}
#if 0
network_process();
if (uip_recvlen > 0) {
syslog_send("handling ethernet packet", strlen("handling ethernet packet"));
DBG("Handling packet\r\n");
handle_icmpv6();
if (uip_recvbuf[20] == 0x11) {
syslog_send("handling udp packet", strlen("handling udp packet"));
/* UDP */
uint8_t *udp = uip_recvbuf + 14 + 40;
uint8_t len = udp[5] - 8;
/* TODO: sanity check */
uint8_t *recvpayload = udp + 8 /* udp */;
fmt_packet(lbuffer, uip_recvbuf[53], 0xFF, recvpayload, len);
struct buspkt *packet = (struct buspkt*)lbuffer;
//syslog_send("sending packet", strlen("sending packet"));
send_packet(packet);
_delay_ms(25);
cnt = 85;
syslog_send("ethernet to rs485 done", strlen("ethernet to rs485 done"));
}
//syslog_send("received a packet", strlen("received a packet"));
buf[14] = uip_recvlen;
//syslog_send(uip_recvbuf, uip_recvlen);
uip_recvlen = 0;
}
#endif
_delay_ms(10);
if (cnt++ == 100) {
fmt_packet(lbuffer, 1, 0, "ping", 4);
struct buspkt *packet = (struct buspkt*)lbuffer;
syslog_send("ping sent", strlen("ping sent"));
send_packet(packet);
cnt = 0;
snprintf(obuf, sizeof(obuf), "cnt = %d, rem = %d\r\n",
eth_to_rs_cnt, eth_to_rs_rem);
syslog_send(obuf, strlen(obuf));
}
uint8_t status = bus_status();
if (status == BUS_STATUS_IDLE)
continue;
if (status == BUS_STATUS_MESSAGE) {
/* get a copy of the current packet */
struct buspkt *packet = current_packet();
uint8_t *walk = packet;
uint8_t *payload = (uint8_t*)packet;
payload += sizeof(struct buspkt);
/* check for ping replies */
if (packet->destination == 0x00 &&
memcmp(payload, "pong", strlen("pong")) == 0) {
syslog_send("pong received", strlen("pong received"));
/* TODO: store that this controller is reachable */
/* check if the controller has any waiting messages */
if (payload[4] > 0) {
/* request the message */
fmt_packet(lbuffer, packet->source, 0, "send", 4);
struct buspkt *reply = (struct buspkt*)lbuffer;
//syslog_send("sending packet", strlen("sending packet"));
_delay_ms(25);
send_packet(reply);
syslog_send("sendreq sent", strlen("sendreq sent"));
//syslog_send(reply, reply->length_lo + sizeof(struct buspkt));
_delay_ms(25);
cnt = 0;
}
}
#if 0
/* copy packet->destination into the MAC and IPv6 address */
uip_buf[5] = packet->destination; /* MAC */
uip_buf[53] = packet->destination; /* IPv6 */
/* copy packet->source into the MAC and IPv6 address */
uip_buf[11] = packet->source; /* MAC */
uip_buf[37] = packet->source; /* IPv6 */
raw_send(payload, packet->length_lo);
#endif
char minibuf[16];
snprintf(minibuf, sizeof(minibuf), "^%02d%02d", 0, packet->length_lo);
uart_puts(minibuf);
uint8_t c;
for (c = 0; c < sizeof(struct buspkt); c++) {
while ( !( UCSR0A & (1<<UDRE0)) );
UDR0 = walk[c];
}
for (c = 0; c < packet->length_lo; c++) {
while ( !( UCSR0A & (1<<UDRE0)) );
UDR0 = payload[c];
}
while ( !( UCSR0A & (1<<UDRE0)) );
UDR0 = '$';
/* discard the packet from serial buffer */
packet_done();
continue;
}
if (status == BUS_STATUS_WRONG_CRC) {
syslog_send("broken", strlen("broken"));
struct buspkt *packet = current_packet();
raw_send(packet, 16);
skip_byte();
continue;
}
}
}