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artiq/soc/runtime/main.c

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#include <stdio.h>
#include <string.h>
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#include <irq.h>
#include <uart.h>
#include <console.h>
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#include <system.h>
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#include <time.h>
#include <generated/csr.h>
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#include "test_mode.h"
#include "session.h"
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void comm_service(void)
{
char *txdata;
int txlen;
static char rxdata;
static int rxpending;
int r, i;
if(!rxpending && uart_read_nonblock()) {
rxdata = uart_read();
rxpending = 1;
}
if(rxpending) {
r = session_input(&rxdata, 1);
if(r > 0)
rxpending = 0;
}
session_poll((void **)&txdata, &txlen);
if(txlen > 0) {
for(i=0;i<txlen;i++)
uart_write(txdata[i]);
session_ack(txlen);
}
}
static void regular_main(void)
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{
session_start();
while(1)
comm_service();
}
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static void blink_led(void)
{
int i, ev, p;
p = identifier_frequency_read()/10;
time_init();
for(i=0;i<3;i++) {
leds_out_write(1);
while(!elapsed(&ev, p));
leds_out_write(0);
while(!elapsed(&ev, p));
}
}
static int check_test_mode(void)
{
char c;
timer0_en_write(0);
timer0_reload_write(0);
timer0_load_write(identifier_frequency_read() >> 2);
timer0_en_write(1);
timer0_update_value_write(1);
while(timer0_value_read()) {
if(readchar_nonblock()) {
c = readchar();
if((c == 't')||(c == 'T'))
return 1;
}
timer0_update_value_write(1);
}
return 0;
}
int main(void)
{
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irq_setmask(0);
irq_setie(1);
uart_init();
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#ifdef ARTIQ_AMP
puts("ARTIQ runtime built "__DATE__" "__TIME__" for AMP systems\n");
#else
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puts("ARTIQ runtime built "__DATE__" "__TIME__" for UP systems\n");
#endif
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blink_led();
if(check_test_mode()) {
puts("Entering test mode.");
test_main();
} else {
puts("Entering regular mode.");
regular_main();
}
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return 0;
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}