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artiq/soc/runtime/ksupport.c

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#include <stdarg.h>
#include "exceptions.h"
#include "mailbox.h"
#include "messages.h"
#include "rtio.h"
#include "dds.h"
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/* for the prototypes for comm_rpc and comm_log */
#include "comm.h"
void exception_handler(unsigned long vect, unsigned long *sp);
void exception_handler(unsigned long vect, unsigned long *sp)
{
struct msg_exception msg;
int i;
msg.type = MESSAGE_TYPE_EXCEPTION;
msg.eid = EID_INTERNAL_ERROR;
for(i=0;i<3;i++)
msg.eparams[i] = 0;
mailbox_send_and_wait(&msg);
while(1);
}
typedef void (*kernel_function)(void);
int main(void);
int main(void)
{
kernel_function k;
void *jb;
jb = exception_push();
if(exception_setjmp(jb)) {
struct msg_exception msg;
msg.type = MESSAGE_TYPE_EXCEPTION;
msg.eid = exception_getid(msg.eparams);
mailbox_send_and_wait(&msg);
} else {
struct msg_finished msg;
k = mailbox_receive();
if(!k)
exception_raise(EID_INTERNAL_ERROR);
dds_init();
rtio_init();
k();
exception_pop(1);
msg.type = MESSAGE_TYPE_FINISHED;
mailbox_send_and_wait(&msg);
}
while(1);
}
int comm_rpc(int rpc_num, ...)
{
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struct msg_rpc_request request;
struct msg_rpc_reply *reply;
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int eid, retval;
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request.type = MESSAGE_TYPE_RPC_REQUEST;
request.rpc_num = rpc_num;
va_start(request.args, rpc_num);
mailbox_send_and_wait(&request);
va_end(request.args);
reply = mailbox_wait_and_receive();
if(reply->type != MESSAGE_TYPE_RPC_REPLY)
exception_raise(EID_INTERNAL_ERROR);
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eid = reply->eid;
retval = reply->retval;
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mailbox_acknowledge();
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if(eid != EID_NONE)
exception_raise(eid);
return retval;
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}
void comm_log(const char *fmt, ...)
{
struct msg_log request;
request.type = MESSAGE_TYPE_LOG;
request.fmt = fmt;
va_start(request.args, fmt);
mailbox_send_and_wait(&request);
va_end(request.args);
}