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artiq/soc/runtime/bridge.c

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#include "mailbox.h"
#include "messages.h"
#include "rtio.h"
#include "dds.h"
#include "bridge.h"
static void send_ready(void)
{
struct msg_base msg;
msg.type = MESSAGE_TYPE_BRG_READY;
mailbox_send_and_wait(&msg);
}
void bridge_main(void)
{
struct msg_base *umsg;
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rtio_init();
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send_ready();
while(1) {
umsg = mailbox_wait_and_receive();
switch(umsg->type) {
case MESSAGE_TYPE_BRG_TTL_OE: {
struct msg_brg_ttl_out *msg;
msg = (struct msg_brg_ttl_out *)umsg;
rtio_set_oe(rtio_get_counter() + 8000, msg->channel, msg->value);
mailbox_acknowledge();
break;
}
case MESSAGE_TYPE_BRG_TTL_O: {
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struct msg_brg_ttl_out *msg;
msg = (struct msg_brg_ttl_out *)umsg;
rtio_set_o(rtio_get_counter() + 8000, msg->channel, msg->value);
mailbox_acknowledge();
break;
}
case MESSAGE_TYPE_BRG_DDS_SEL: {
struct msg_brg_dds_sel *msg;
msg = (struct msg_brg_dds_sel *)umsg;
DDS_WRITE(DDS_GPIO, msg->channel);
mailbox_acknowledge();
break;
}
case MESSAGE_TYPE_BRG_DDS_RESET: {
unsigned int g;
g = DDS_READ(DDS_GPIO);
DDS_WRITE(DDS_GPIO, g | (1 << 7));
DDS_WRITE(DDS_GPIO, g);
mailbox_acknowledge();
break;
}
case MESSAGE_TYPE_BRG_DDS_READ_REQUEST: {
struct msg_brg_dds_read_request *msg;
struct msg_brg_dds_read_reply rmsg;
msg = (struct msg_brg_dds_read_request *)umsg;
rmsg.type = MESSAGE_TYPE_BRG_DDS_READ_REPLY;
rmsg.data = DDS_READ(msg->address);
mailbox_send_and_wait(&rmsg);
break;
}
case MESSAGE_TYPE_BRG_DDS_WRITE: {
struct msg_brg_dds_write *msg;
msg = (struct msg_brg_dds_write *)umsg;
DDS_WRITE(msg->address, msg->data);
mailbox_acknowledge();
break;
}
case MESSAGE_TYPE_BRG_DDS_FUD:
rtio_fud(rtio_get_counter() + 8000);
mailbox_acknowledge();
break;
default:
mailbox_acknowledge();
break;
}
}
}