view rvinterf/asyncshell/rxctl.c @ 992:a7b0b426f9ca

target-utils: boot ROM UART autodetection revamped The new implementation should work with both the familiar Calypso C035 boot ROM version found in our regular targets as well as the older Calypso F741979B version found on the vintage D-Sample board.
author Mychaela Falconia <falcon@ivan.Harhan.ORG>
date Wed, 30 Dec 2015 21:28:41 +0000
parents c9f353b5d70c
children 820d34f3f3d7
line wrap: on
line source

/*
 * This module contains the code for enabling and disabling the receiving
 * of various packet types via rvinterf.
 */

#include <sys/types.h>
#include <stdio.h>
#include <ctype.h>
#include <string.h>
#include <strings.h>
#include <stdlib.h>
#include "pktmux.h"
#include "localsock.h"

void
send_rxctl_cmd(channel, enable)
{
	u_char cmdbuf[2];

	cmdbuf[0] = enable ? CLI2RVI_WANT_MUXPROTO : CLI2RVI_DROP_MUXPROTO;
	cmdbuf[1] = channel;
	send_init_command(cmdbuf, 2);
}

void
ati_rx_control(newstate)
{
	static int state = 0;

	if (state == newstate)
		return;
	send_rxctl_cmd(RVT_AT_HEADER, newstate);
	state = newstate;
}

void
gpf_rx_control(newstate)
{
	static int state = 0;

	if (state == newstate)
		return;
	send_rxctl_cmd(RVT_L23_HEADER, newstate);
	state = newstate;
}

void
rxctl_user_cmd(args, enable)
	char *args;
{
	char *cp, *np;
	int gotsome = 0;

	for (cp = args; ; ) {
		while (isspace(*cp))
			cp++;
		if (!*cp) {
			if (!gotsome)
				printf("error: argument required\n");
			return;
		}
		for (np = cp; *cp && !isspace(*cp); cp++)
			;
		if (*cp)
			*cp++ = '\0';
		if (!strcmp(np, "ati"))
			ati_rx_control(enable);
		else if (!strcmp(np, "gpf"))
			gpf_rx_control(enable);
		else {
			printf("error: unknown channel \"%s\"\n", np);
			return;
		}
		gotsome++;
	}
}

void
cmd_enable(args)
	char *args;
{
	rxctl_user_cmd(args, 1);
}

void
cmd_disable(args)
	char *args;
{
	rxctl_user_cmd(args, 0);
}