FreeCalypso > hg > freecalypso-tools
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; }