FreeCalypso > hg > freecalypso-tools
view uptools/libcoding/utf8_decode2.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 | 83c755829e31 |
children | 6bf473f77fc4 |
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/* * This library module implements the function for converting UTF-8 input * to UCS-2 in outgoing SMS composition. */ #include <sys/types.h> utf8_to_ucs2(inbuf, outbuf, outmax, outlenp) u_char *inbuf; u_short *outbuf; unsigned outmax, *outlenp; { u_char *ip = inbuf; u_short *op = outbuf; unsigned outcnt = 0, c, n, uni; while (c = *ip++) { if (c < 0x80) { uni = c; goto gotuni; } if (c < 0xC0 || c > 0xEF) return(-1); uni = c & 0x1F; if (c >= 0xE0) n = 2; else n = 1; for (; n; n--) { c = *ip++; if (c < 0x80 || c > 0xBF) return(-1); uni <<= 6; uni |= c & 0x3F; } gotuni: if (outcnt >= outmax) return(-2); *op++ = uni; outcnt++; } *outlenp = outcnt; return(0); }