FreeCalypso > hg > freecalypso-tools
view rvinterf/etmsync/fsbasics.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 | 46ad66a231af |
children | 74d284add54d |
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/* * Basic FFS2 operations */ #include <sys/types.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <strings.h> #include "etm.h" #include "ffs.h" #include "tmffs2.h" #include "limits.h" #include "ffslimits.h" #include "localtypes.h" #include "localstruct.h" #include "exitcodes.h" extern u_char rvi_msg[]; extern int rvi_msg_len; cmd_ffs2ver() { u_char cmdpkt[4]; int rc; cmdpkt[1] = ETM_FFS2; cmdpkt[2] = TMFFS_VERSION; rc = etm_pkt_exch(cmdpkt, 2); if (rc) return(rc); if (rvi_msg[3]) { printf("FFS2 error %d\n", rvi_msg[3]); return(ERROR_TARGET); } if (rvi_msg_len != 7) { printf("error: FFS2 version response has wrong length\n"); return(ERROR_TARGET); } printf("FFS2 version: %02X.%02X\n", rvi_msg[5], rvi_msg[4]); return(0); } do_ls_short(lsarg) char *lsarg; { u_char state[4]; char namebuf[256]; int nument, i, rc; rc = do_opendir(lsarg, state, &nument); if (rc) return(rc); if (!nument) { printf("<empty dir>\n"); return(0); } for (i = 0; i < nument; i++) { rc = do_readdir(state, namebuf, sizeof namebuf); if (rc) return(rc); printf("%s\n", namebuf); } return(0); } cmd_ls(argc, argv) char **argv; { if (argc == 2) return do_ls_short(argv[1]); if (strcmp(argv[1], "-l")) { fprintf(stderr, "usage: ls [-l] ffs_pathname\n"); return(ERROR_USAGE); } return do_ls_long(argv[2]); } cmd_stat(argc, argv) char **argv; { struct stat_info stat; int rc; char *type; rc = do_xlstat(argv[1], &stat); if (rc) return(rc); switch (stat.type) { case OT_FILE: type = "file"; break; case OT_DIR: type = "directory"; break; case OT_LINK: type = "symlink"; break; default: type = "???"; } printf("Type: %s%s\n", type, stat.flags & OF_READONLY ? ", read-only" : ""); printf("inode %x\n", stat.inode); printf("size %u, space %u\n", stat.size, stat.space); printf("location=%x, block %d\n", stat.location, stat.block); return(0); }