forked from M-Labs/artiq
67 lines
1.5 KiB
C
67 lines
1.5 KiB
C
#include <generated/csr.h>
|
|
|
|
#include "exceptions.h"
|
|
#include "rtio.h"
|
|
|
|
void rtio_init(void)
|
|
{
|
|
rtio_reset_counter_write(1);
|
|
rtio_reset_logic_write(1);
|
|
rtio_reset_logic_write(0);
|
|
}
|
|
|
|
void rtio_oe(int channel, int oe)
|
|
{
|
|
rtio_chan_sel_write(channel);
|
|
rtio_oe_write(oe);
|
|
}
|
|
|
|
void rtio_set(long long int timestamp, int channel, int value)
|
|
{
|
|
rtio_reset_counter_write(0);
|
|
rtio_chan_sel_write(channel);
|
|
rtio_o_timestamp_write(timestamp);
|
|
rtio_o_value_write(value);
|
|
while(!rtio_o_writable_read());
|
|
rtio_o_we_write(1);
|
|
if(rtio_o_error_read()) {
|
|
rtio_reset_logic_write(1);
|
|
rtio_reset_logic_write(0);
|
|
exception_raise(EID_RTIO_UNDERFLOW);
|
|
}
|
|
}
|
|
|
|
void rtio_replace(long long int timestamp, int channel, int value)
|
|
{
|
|
rtio_chan_sel_write(channel);
|
|
rtio_o_timestamp_write(timestamp);
|
|
rtio_o_value_write(value);
|
|
rtio_o_replace_write(1);
|
|
if(rtio_o_error_read()) {
|
|
rtio_reset_logic_write(1);
|
|
rtio_reset_logic_write(0);
|
|
exception_raise(EID_RTIO_UNDERFLOW);
|
|
}
|
|
}
|
|
|
|
void rtio_sync(int channel)
|
|
{
|
|
rtio_chan_sel_write(channel);
|
|
while(rtio_o_level_read() != 0);
|
|
}
|
|
|
|
long long int rtio_get(int channel)
|
|
{
|
|
long long int r;
|
|
|
|
rtio_chan_sel_write(channel);
|
|
while(rtio_i_readable_read() || (rtio_o_level_read() != 0)) {
|
|
if(rtio_i_readable_read()) {
|
|
r = rtio_i_value_read();
|
|
rtio_i_re_write(1);
|
|
return r;
|
|
}
|
|
}
|
|
return -1;
|
|
}
|