int main(void)
{
// There are a lot of dependencies in the order of these inits.
// Don't change the ordering unless you understand this.
// Inits can assume that all memory has been zeroed by either
// a hardware reset or a watchdog timer reset.
cli();
// system and drivers
sys_init(); // system hardware setup - must be first
rtc_init(); // real time counter
xio_init(); // xmega io subsystem
sig_init(); // signal flags
st_init(); // stepper subsystem - must precede gpio_init()
gpio_init(); // switches and parallel IO
pwm_init(); // pulse width modulation drivers - must follow gpio_init()
// application structures
tg_init(STD_INPUT); // tinyg controller (controller.c) - must be first app init; reqs xio_init()
cfg_init(); // config records from eeprom - must be next app init
mp_init(); // motion planning subsystem
cm_init(); // canonical machine - must follow cfg_init()
sp_init(); // spindle PWM and variables
// now bring up the interupts and get started
PMIC_SetVectorLocationToApplication(); // as opposed to boot ROM
PMIC_EnableHighLevel(); // all levels are used, so don't bother to abstract them
PMIC_EnableMediumLevel();
PMIC_EnableLowLevel();
sei(); // enable global interrupts
rpt_print_system_ready_message();// (LAST) announce system is ready
_unit_tests(); // run any unit tests that are enabled
tg_canned_startup(); // run any pre-loaded commands
while (true) {
// if (tg.network == NET_MASTER) {
// tg_repeater();
// } else if (tg.network == NET_SLAVE) {
// tg_receiver();
// } else {
tg_controller(); // NET_STANDALONE
// }
}
}
stat_t _command_dispatch()
{
#ifdef __AVR
stat_t status;
// read input line or return if not a completed line
// xio_gets() is a non-blocking workalike of fgets()
while (true) {
if ((status = xio_gets(cs.primary_src, cs.in_buf, sizeof(cs.in_buf))) == STAT_OK) {
cs.bufp = cs.in_buf;
break;
}
// handle end-of-file from file devices
if (status == STAT_EOF) { // EOF can come from file devices only
if (cfg.comm_mode == TEXT_MODE) {
fprintf_P(stderr, PSTR("End of command file\n"));
} else {
rpt_exception(STAT_EOF); // not really an exception
}
tg_reset_source(); // reset to default source
}
return (status); // Note: STAT_EAGAIN, errors, etc. will drop through
}
#endif // __AVR
#ifdef __ARM
// detect USB connection and transition to disconnected state if it disconnected
if (SerialUSB.isConnected() == false) cs.state = CONTROLLER_NOT_CONNECTED;
// read input line and return if not a completed line
if (cs.state == CONTROLLER_READY) {
if (read_line(cs.in_buf, &cs.read_index, sizeof(cs.in_buf)) != STAT_OK) {
cs.bufp = cs.in_buf;
return (STAT_OK); // This is an exception: returns OK for anything NOT OK, so the idler always runs
}
} else if (cs.state == CONTROLLER_NOT_CONNECTED) {
if (SerialUSB.isConnected() == false) return (STAT_OK);
cm_request_queue_flush();
rpt_print_system_ready_message();
cs.state = CONTROLLER_STARTUP;
} else if (cs.state == CONTROLLER_STARTUP) { // run startup code
cs.state = CONTROLLER_READY;
} else {
return (STAT_OK);
}
cs.read_index = 0;
#endif // __ARM
#ifdef __RX
stat_t status;
parse_gcode_func_selection(CODE_PARSER);
// read input line or return if not a completed line
// xio_gets() is a non-blocking workalike of fgets()
while (true) {
if ((status = xio_gets(cs.primary_src, cs.in_buf, sizeof(cs.in_buf))) == STAT_OK) {
cs.bufp = cs.in_buf;
break;
}
// handle end-of-file from file devices
if (status == STAT_EOF) { // EOF can come from file devices only
//gfilerunning = false;
xio_close(cs.primary_src);
// macro_func_ptr = command_idle;
if (cfg.comm_mode == TEXT_MODE) {
fprintf_P(stderr, PSTR("End of command file\n"));
} else {
rpt_exception(STAT_EOF); // not really an exception
}
tg_reset_source(); // reset to default source
}
return (status); // Note: STAT_EAGAIN, errors, etc. will drop through
}
#endif // __AVR
// set up the buffers
cs.linelen = strlen(cs.in_buf)+1; // linelen only tracks primary input
strncpy(cs.saved_buf, cs.bufp, SAVED_BUFFER_LEN-1); // save input buffer for reporting
// dispatch the new text line
switch (toupper(*cs.bufp)) { // first char
case '!': { cm_request_feedhold(); break; } // include for AVR diagnostics and ARM serial
case '%': { cm_request_queue_flush(); break; }
case '~': { cm_request_cycle_start(); break; }
case NUL: { // blank line (just a CR)
if (cfg.comm_mode != JSON_MODE) {
text_response(STAT_OK, cs.saved_buf);
}
break;
}
case '$': case '?': case 'H': { // text mode input
cfg.comm_mode = TEXT_MODE;
text_response(text_parser(cs.bufp), cs.saved_buf);
break;
}
case '{': { // JSON input
cfg.comm_mode = JSON_MODE;
json_parser(cs.bufp);
break;
}
default: { // anything else must be Gcode
if (cfg.comm_mode == JSON_MODE) { // run it as JSON...
strncpy(cs.out_buf, cs.bufp, INPUT_BUFFER_LEN -8); // use out_buf as temp
sprintf((char *)cs.bufp,"{\"gc\":\"%s\"}\n", (char *)cs.out_buf); // '-8' is used for JSON chars
json_parser(cs.bufp);
} else { //...or run it as text
text_response(gc_gcode_parser(cs.bufp), cs.saved_buf);
}
}
}
return (STAT_OK);
}