artiq/soc/runtime/rtio.c

#include <generated/csr.h>

#include "exceptions.h"
#include "rtio.h"

void rtio_init(void)
{
    rtio_reset_write(1);
    rtio_reset_write(0);
    rtio_reset_phy_write(0);
}

long long int rtio_get_counter(void)
{
    rtio_counter_update_write(1);
    return rtio_counter_read();
}

void rtio_process_exceptional_status(int status, long long int timestamp, int channel)
{
    if(status & RTIO_O_STATUS_FULL)
        while(rtio_o_status_read() & RTIO_O_STATUS_FULL);
    if(status & RTIO_O_STATUS_UNDERFLOW) {
        rtio_o_underflow_reset_write(1);
        exception_raise_params(EID_RTIO_UNDERFLOW,
            timestamp, channel, rtio_get_counter());
    }
    if(status & RTIO_O_STATUS_SEQUENCE_ERROR) {
        rtio_o_sequence_error_reset_write(1);
        exception_raise_params(EID_RTIO_SEQUENCE_ERROR,
            timestamp, channel, 0);
    }
    if(status & RTIO_O_STATUS_COLLISION_ERROR) {
        rtio_o_collision_error_reset_write(1);
        exception_raise_params(EID_RTIO_COLLISION_ERROR,
            timestamp, channel, 0);
    }
}