FreeCalypso > hg > freecalypso-tools
view rvinterf/tmsh/oneshot.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 | 27c41e4b21ae |
children |
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/* * This module implements the one-shot mode of operation for fc-tmsh. */ #include <sys/types.h> #include <sys/errno.h> #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include "exitcodes.h" extern int oneshot_nowait; extern int sock; extern int got_tm_response; oneshot_command(argc, argv) char **argv; { fd_set fds; int rc; if (!oneshot_nowait) init(); /* to catch the response properly */ rc = dispatch_oneshot_cmd(argc, argv); if (rc) exit(rc); if (oneshot_nowait) exit(0); /* wait for response */ for (;;) { FD_ZERO(&fds); FD_SET(sock, &fds); rc = select(sock+1, &fds, 0, 0, 0); if (rc < 0) { if (errno == EINTR) continue; perror("select"); exit(ERROR_UNIX); } if (FD_ISSET(sock, &fds)) handle_rvinterf_input(); if (got_tm_response) exit(0); } }