view rvinterf/asyncshell/rxctl.c @ 923:10b4bed10192

gsm-fw/L1: fix for the DSP patch corruption bug The L1 code we got from the LoCosto fw contains a feature for DSP CPU load measurement. This feature is a LoCosto-ism, i.e., not applicable to earlier DBB chips (Calypso) with their respective earlier DSP ROMs. Most of the code dealing with that feature is conditionalized as #if (DSP >= 38), but one spot was missed, and the MCU code was writing into an API word dealing with this feature. In TCS211 this DSP API word happens to be used by the DSP code patch, hence that write was corrupting the patched DSP code.
author Mychaela Falconia <falcon@ivan.Harhan.ORG>
date Mon, 19 Oct 2015 17:13:56 +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);
}