view rvinterf/old/g23sh/sendsp.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 373af5f74e39
children
line wrap: on
line source

/*
 * g23sh system primitive sending command
 */

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

void
cmd_sendsp(argc, argv)
	char **argv;
{
	char *stackdest, *primarg;
	unsigned intlen;
	u_char sendpkt[MAX_PKT_TO_TARGET+1];
	unsigned pktlen;

	stackdest = argv[1];
	primarg = argv[2];
	if (strlen(stackdest) > 4) {
		printf(
		  "error: stack destination arg may not exceed 4 characters\n");
		return;
	}
	intlen = 12 + strlen(primarg);
	pktlen = intlen + 4;
	if (pktlen > MAX_PKT_TO_TARGET) {
		printf("error: max pkt to target limit exceeded\n");
		return;
	}
	/* fill out the packet */
	sendpkt[0] = RVT_L23_HEADER;
	sendpkt[1] = 0xB7;	/* system prim */
	sendpkt[2] = intlen;
	sendpkt[3] = intlen >> 8;
	/* send zeros for the timestamp */
	sendpkt[4] = 0;
	sendpkt[5] = 0;
	sendpkt[6] = 0;
	sendpkt[7] = 0;
	/* as far as TI's sw is concerned, we are PCO */
	sendpkt[8] = 'P';
	sendpkt[9] = 'C';
	sendpkt[10] = 'O';
	sendpkt[11] = ' ';
	sprintf(sendpkt + 12, "%-4s%s", stackdest, primarg);
	/* send it! */
	send_pkt_to_target(sendpkt, pktlen);
}