view target-utils/simtest/poll.c @ 926:6a0aa8d36d06

rvinterf backslash escape: introduce libprint The new helper function library named libprint is meant to replace the badly misnamed libg23, and will soon contain functions for printing all of the same kinds of GPF TST packets that are now handled in libg23. However, we are also moving safe_print_trace() from libasync to this new library, and changing it to emit our new backslash escape format.
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 23 May 2023 03:47:46 +0000
parents d96ea6ae6aa5
children
line wrap: on
line source

#include <sys/types.h>
#include <strings.h>
#include "types.h"
#include "simregs.h"

extern int serial_in_poll();

int enable_poll;

void
poll_sim_rx()
{
	u32 drx;

	if (SIMREGS.stat & SIM_STAT_FEMPTY)
		return;
	drx = SIMREGS.drx & 0xFF;
	printf("%02X ", drx);
}

int
mygetchar()
{
	register int c;

	do {
		if (enable_poll)
			poll_sim_rx();
		c = serial_in_poll();
	}
	while (c < 0);
	return c;
}

void
cmd_poll(argbulk)
	char *argbulk;
{
	char *argv[2];

	if (parse_args(argbulk, 1, 1, argv, 0) < 0)
		return;
	if (!strcmp(argv[0], "on"))
		enable_poll = 1;
	else if (!strcmp(argv[0], "off"))
		enable_poll = 0;
	else
		printf("ERROR: \"on\" or \"off\" argument expected\n");
}