mirror of https://github.com/m-labs/artiq.git
57 lines
1.2 KiB
C
57 lines
1.2 KiB
C
#include <generated/csr.h>
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#include "exceptions.h"
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#include "rtio.h"
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void rtio_init(void)
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{
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rtio_reset_write(1);
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}
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void rtio_oe(int channel, int oe)
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{
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rtio_chan_sel_write(channel);
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rtio_oe_write(oe);
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}
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void rtio_set(long long int timestamp, int channel, int value)
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{
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rtio_reset_write(0);
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rtio_chan_sel_write(channel);
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rtio_o_timestamp_write(timestamp);
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rtio_o_value_write(value);
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while(!rtio_o_writable_read());
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rtio_o_we_write(1);
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if(rtio_o_error_read())
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exception_raise(EID_RTIO_UNDERFLOW);
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}
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void rtio_replace(long long int timestamp, int channel, int value)
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{
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rtio_chan_sel_write(channel);
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rtio_o_timestamp_write(timestamp);
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rtio_o_value_write(value);
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rtio_o_replace_write(1);
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}
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void rtio_sync(int channel)
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{
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rtio_chan_sel_write(channel);
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while(rtio_o_level_read() != 0);
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}
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long long int rtio_get(int channel)
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{
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long long int r;
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rtio_chan_sel_write(channel);
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while(rtio_i_readable_read() || (rtio_o_level_read() != 0)) {
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if(rtio_i_readable_read()) {
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r = rtio_i_value_read();
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rtio_i_re_write(1);
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return r;
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}
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}
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return -1;
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}
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