int main(int argc, char *argv[]) {
pic_init();
hal_uart_init();
puts("\nStarting delay...\n");
output_regs->leds = 0xFF;
delay(4000000);
output_regs->leds = 0x00;
delay(4000000);
puts("Rebooting FPGA to 0x00000000\n");
icap_reload_fpga((uint32_t)0x00000000);
return 0;
}
//Firmware update packet handler
void handle_udp_fw_update_packet(struct socket_address src, struct socket_address dst,
unsigned char *payload, int payload_len) {
const usrp2_fw_update_data_t *update_data_in = (usrp2_fw_update_data_t *) payload;
usrp2_fw_update_data_t update_data_out;
usrp2_fw_update_id_t update_data_in_id = update_data_in->id;
//ensure that the protocol versions match
/* if (payload_len >= sizeof(uint32_t) && update_data_in->proto_ver != USRP2_FW_COMPAT_NUM){
printf("!Error in update packet handler: Expected compatibility number %d, but got %d\n",
USRP2_FW_COMPAT_NUM, update_data_in->proto_ver
);
update_data_in_id = USRP2_FW_UPDATE_ID_OHAI_LOL; //so we can respond
}
*/
//ensure that this is not a short packet
if (payload_len < sizeof(usrp2_fw_update_data_t)){
printf("!Error in update packet handler: Expected payload length %d, but got %d\n",
(int)sizeof(usrp2_fw_update_data_t), payload_len
);
update_data_in_id = USRP2_FW_UPDATE_ID_WAT;
}
switch(update_data_in_id) {
case USRP2_FW_UPDATE_ID_OHAI_LOL: //why hello there you handsome devil
update_data_out.id = USRP2_FW_UPDATE_ID_OHAI_OMG;
memcpy(&update_data_out.data.ip_addr, (void *)get_ip_addr(), sizeof(struct ip_addr));
//this is to stop streaming for the folks who think updating while streaming is a good idea
sr_rx_ctrl0->cmd = 1 << 31 | 1 << 28; //no samples now
sr_rx_ctrl0->time_secs = 0;
sr_rx_ctrl0->time_ticks = 0; //latch the command
sr_rx_ctrl1->cmd = 1 << 31 | 1 << 28; //no samples now
sr_rx_ctrl1->time_secs = 0;
sr_rx_ctrl1->time_ticks = 0; //latch the command
sr_tx_ctrl->cyc_per_up = 0;
break;
case USRP2_FW_UPDATE_ID_WATS_TEH_FLASH_INFO_LOL: //query sector size, memory size so the host can mind the boundaries
update_data_out.data.flash_info_args.sector_size_bytes = spi_flash_sector_size();
update_data_out.data.flash_info_args.memory_size_bytes = spi_flash_memory_size();
update_data_out.id = USRP2_FW_UPDATE_ID_HERES_TEH_FLASH_INFO_OMG;
break;
case USRP2_FW_UPDATE_ID_I_CAN_HAS_HW_REV_LOL: //get the hardware revision of the platform for validation checking
update_data_out.data.hw_rev = (uint32_t) get_hw_rev();
update_data_out.id = USRP2_FW_UPDATE_ID_HERES_TEH_HW_REV_OMG;
break;
case USRP2_FW_UPDATE_ID_ERASE_TEH_FLASHES_LOL: //out with the old
spi_flash_async_erase_start(&spi_flash_async_state, update_data_in->data.flash_args.flash_addr, update_data_in->data.flash_args.length);
update_data_out.id = USRP2_FW_UPDATE_ID_ERASING_TEH_FLASHES_OMG;
break;
case USRP2_FW_UPDATE_ID_R_U_DONE_ERASING_LOL:
//poll for done, set something in the reply packet
//spi_flash_async_erase_poll() also advances the state machine, so you should call it reasonably often to get things done quicker
if(spi_flash_async_erase_poll(&spi_flash_async_state)) update_data_out.id = USRP2_FW_UPDATE_ID_IM_DONE_ERASING_OMG;
else update_data_out.id = USRP2_FW_UPDATE_ID_NOPE_NOT_DONE_ERASING_OMG;
break;
case USRP2_FW_UPDATE_ID_WRITE_TEH_FLASHES_LOL: //and in with the new
//spi_flash_program() goes pretty quick compared to page erases, so we don't bother polling -- it'll come back in some milliseconds
//if it doesn't come back fast enough, we'll just write smaller packets at a time until it does
spi_flash_program(update_data_in->data.flash_args.flash_addr, update_data_in->data.flash_args.length, update_data_in->data.flash_args.data);
update_data_out.id = USRP2_FW_UPDATE_ID_WROTE_TEH_FLASHES_OMG;
break;
case USRP2_FW_UPDATE_ID_READ_TEH_FLASHES_LOL: //for verify
spi_flash_read(update_data_in->data.flash_args.flash_addr, update_data_in->data.flash_args.length, update_data_out.data.flash_args.data);
update_data_out.id = USRP2_FW_UPDATE_ID_KK_READ_TEH_FLASHES_OMG;
break;
case USRP2_FW_UPDATE_ID_RESET_MAH_COMPUTORZ_LOL: //for if we ever get the ICAP working
//should reset via icap_reload_fpga(uint32_t flash_address);
update_data_out.id = USRP2_FW_UPDATE_ID_RESETTIN_TEH_COMPUTORZ_OMG;
//you should note that if you get a reply packet to this the reset has obviously failed
icap_reload_fpga(0);
break;
// case USRP2_FW_UPDATE_ID_KTHXBAI: //see ya
// break;
default: //uhhhh
update_data_out.id = USRP2_FW_UPDATE_ID_WAT;
}
send_udp_pkt(USRP2_UDP_UPDATE_PORT, src, &update_data_out, sizeof(update_data_out));
}
