view loadtools/ltexit.c @ 497:74610c4f10f7

target-utils: added 10 ms delay at the end of abb_power_off() The deosmification of the ABB access code (replacement of osmo_delay_ms() bogus delays with correctly-timed ones, which are significantly shorter) had one annoying side effect: when executing the poweroff command from any of the programs, one last '=' prompt character was being sent (and received by the x86 host) as the Calypso board powers off. With delays being shorter now, the abb_power_off() function was returning and the standalone program's main loop was printing its prompt before the Iota chip fully executed the switch-off sequence! I thought about inserting an endless tight loop at the end of the abb_power_off() function, but the implemented solution of a 10 ms delay is a little nicer IMO because if the DEVOFF operation doesn't happen for some reason in a manual hacking scenario, there won't be an artificial blocker in the form of a tight loop keeping us from further poking around.
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 25 May 2019 20:44:05 +0000
parents 96332d875fc9
children aba969153d20
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/*
 * This module implements the loadtool exit command, along with its
 * options for jump-reboot and Iota power-off.
 */

#include <stdio.h>
#include <string.h>
#include <strings.h>
#include <stdlib.h>

static void
exit_bare(rc)
{
	exit(rc);
}

static void
exit_gta02_cutpwr(rc)
{
#ifdef GTA0x_AP_BUILD
	set_gta_modem_power_ctrl(0);
#endif
	exit(rc);
}

static void
exit_iotaoff(rc)
{
	static char *poweroff_argv[2] = {"poweroff", 0};

	tpinterf_make_cmd(poweroff_argv);
	tpinterf_send_cmd();
	exit(rc);
}

static void
exit_jump0(rc)
{
	static char *jump0_argv[3] = {"jump", "0", 0};

	tpinterf_make_cmd(jump0_argv);
	tpinterf_send_cmd();
	exit(rc);
}

void (*default_exit)() = exit_bare;

static struct kwtab {
	char *kw;
	void (*func)();
} exit_modes[] = {
	{"bare", exit_bare},
	{"gta02-cutpwr", exit_gta02_cutpwr},
	{"iota-off", exit_iotaoff},
	{"jump0", exit_jump0},
	{0, 0}
};

cmd_exit(argc, argv)
	char **argv;
{
	struct kwtab *tp;

	if (argc < 2)
		default_exit(0);
	for (tp = exit_modes; tp->kw; tp++)
		if (!strcmp(tp->kw, argv[1]))
			break;
	if (!tp->func) {
		fprintf(stderr,
			"error: \"%s\" is not an understood exit mode\n",
			argv[1]);
		return(-1);
	}
	tp->func(0);
}

/* called from hwparam.c config file parser */
void
set_default_exit_mode(arg, filename_for_errs, lineno_for_errs)
	char *arg;
	char *filename_for_errs;
	int lineno_for_errs;
{
	char *cp;
	struct kwtab *tp;

	while (isspace(*arg))
		arg++;
	if (!*arg) {
		fprintf(stderr,
		"%s line %d: exit-mode setting requires an argument\n",
			filename_for_errs, lineno_for_errs);
		exit(1);
	}
	for (cp = arg; *cp && !isspace(*cp); cp++)
		;
	*cp = '\0';
	for (tp = exit_modes; tp->kw; tp++)
		if (!strcmp(tp->kw, arg))
			break;
	if (!tp->func) {
		fprintf(stderr,
			"%s line %d: \"%s\" is not an understood exit mode\n",
			filename_for_errs, lineno_for_errs, arg);
		exit(1);
	}
	default_exit = tp->func;
}