void
process_line(longint_t vars[], char *line) {
int varnum, optype, status;
longint_t second_value;
/* determine the LHS variable, it
* must be first character in line
*/
varnum = to_varnum(line[0]);
if (varnum==ERROR) {
printf("Invalid LHS variable\n");
return;
}
/* more testing for validity
*/
if (strlen(line)<2) {
printf("No operator supplied\n");
return;
}
/* determine the operation to be performed, it
* must be second character in line
*/
optype = line[1];
if (strchr(ALLOPS, optype) == NULL) {
printf("Unknown operator\n");
return;
}
/* determine the RHS argument (if one is required),
* it must start in third character of line
*/
if (optype != PRINT) {
if (strlen(line)<3) {
printf("No RHS supplied\n");
return;
}
status = get_second_value(vars, line+2, &second_value);
if (status==ERROR) {
printf("RHS argument is invalid\n");
return;
}
}
/* finally, do the actual operation
*/
if (optype == PRINT) {
do_print(vars+varnum);
} else if (optype == ASSIGN) {
do_assign(vars+varnum, &second_value);
} else if (optype == PLUS) {
do_plus(vars+varnum, &second_value);
} else if (optype == MULT) {
do_mult(vars+varnum, &second_value);
} else if (optype == POWER) {
do_power(vars+varnum, &second_value);
}
return;
}
static void do_control_request(int direction)
{
switch (USB_ControlRequest.bRequest) {
case REQUEST_REGISTER:
do_register(direction, USB_ControlRequest.wValue);
break;
case REQUEST_FREQUENCY:
do_frequency(direction, USB_ControlRequest.wValue);
break;
case REQUEST_RXTX_MODE:
do_rxtx_mode(direction, USB_ControlRequest.wValue);
break;
case REQUEST_MODINDEX:
do_modindex(direction, USB_ControlRequest.wValue);
break;
case REQUEST_CSMA_RSSI:
do_csma_rssi(direction, USB_ControlRequest.wValue);
break;
case REQUEST_POWER:
do_power(direction, USB_ControlRequest.wValue);
break;
case REQUEST_AFC:
do_acf(direction, USB_ControlRequest.wValue);
break;
case REQUEST_IFBW:
do_ifbw(direction, USB_ControlRequest.wValue);
break;
case REQUEST_TRAINING:
do_training(direction, USB_ControlRequest.wValue);
break;
case REQUEST_SYNCWORD:
do_syncword(direction, USB_ControlRequest.wValue);
break;
case REQUEST_BITRATE:
do_bitrate(direction, USB_ControlRequest.wValue);
break;
case REQUEST_TX:
do_tx(direction, USB_ControlRequest.wValue);
break;
case REQUEST_RX:
do_rx(direction, USB_ControlRequest.wValue);
break;
case REQUEST_TX_FREQUENCY:
do_tx_frequency(direction, USB_ControlRequest.wValue);
break;
case REQUEST_RX_FREQUENCY:
do_rx_frequency(direction, USB_ControlRequest.wValue);
break;
case REQUEST_SERIALNUMBER:
do_serialnumber(direction, USB_ControlRequest.wValue);
break;
case REQUEST_FWREVISION:
do_fw_revision(direction, USB_ControlRequest.wValue);
break;
case REQUEST_RESET:
reboot();
break;
case REQUEST_DFU:
jump_to_bootloader();
break;
}
}