123 lines
2.2 KiB
C
123 lines
2.2 KiB
C
/* MSPDebug - debugging tool for the eZ430
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* Copyright (C) 2009, 2010 Daniel Beer
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "util/util.h"
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#include "bsllib.h"
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#include "gpio.h"
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int bsllib_seq_do(sport_t fd, const char *seq)
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{
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int state = 0;
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while (*seq && *seq != ':') {
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const char c = *(seq++);
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switch (c) {
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case 'R':
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state |= SPORT_MC_RTS;
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break;
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case 'r':
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state &= ~SPORT_MC_RTS;
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break;
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case 'D':
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state |= SPORT_MC_DTR;
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break;
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case 'd':
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state &= ~SPORT_MC_DTR;
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break;
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case ',':
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if (sport_set_modem(fd, state) < 0)
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return -1;
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delay_ms(50);
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break;
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}
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}
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if (sport_set_modem(fd, state) < 0)
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return -1;
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delay_ms(50);
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return 0;
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}
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int bsllib_seq_do_gpio(int rts, int dtr, const char *seq)
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{
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int was_rts_exported = gpio_is_exported(rts);
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int was_dtr_exported = gpio_is_exported(dtr);
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gpio_export ( rts );
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gpio_set_dir ( rts, 1 );
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gpio_export ( dtr );
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gpio_set_dir ( dtr, 1 );
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while (*seq && *seq != ':') {
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const char c = *(seq++);
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// Logic is reversed!
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switch (c) {
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case 'R':
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gpio_set_value ( rts, 0 );
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break;
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case 'r':
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gpio_set_value ( rts, 1 );
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break;
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case 'D':
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gpio_set_value ( dtr, 0 );
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break;
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case 'd':
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gpio_set_value ( dtr, 1 );
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break;
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case ',':
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delay_ms(50);
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break;
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}
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}
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if (was_rts_exported == 0)
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{
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gpio_unexport ( rts );
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}
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if (was_dtr_exported == 0)
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{
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gpio_unexport ( dtr );
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}
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delay_ms(50);
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return 0;
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}
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const char *bsllib_seq_next(const char *seq)
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{
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while (*seq && *seq != ':')
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seq++;
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if (*seq == ':')
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seq++;
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return seq;
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}
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