2 * Copyright © 2008 Keith Packard <keithp@keithp.com>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
22 * Manual bit-banging to debug the low level protocol
26 get_bit(char *line, int i, char on, uint8_t bit, uint8_t *bits, uint8_t *masks)
40 fprintf(stderr, "bad line %s\n", line);
45 ccdbg_manual(struct ccdbg *dbg, FILE *input)
50 while (fgets(line, sizeof line, input)) {
51 if (line[0] == '#' || line[0] == '\n') {
57 get_bit(line, 0, 'C', CC_CLOCK, &set, &mask);
58 get_bit(line, 2, 'D', CC_DATA, &set, &mask);
59 get_bit(line, 4, 'R', CC_RESET_N, &set, &mask);
60 if (mask != (CC_CLOCK|CC_DATA|CC_RESET_N)) {
62 ccdbg_read(dbg, &read);
63 ccdbg_print("\t%c %c %c", CC_CLOCK|CC_DATA|CC_RESET_N, read);
64 if ((set & CC_CLOCK) == 0)
65 printf ("\t%d", (read&CC_DATA) ? 1 : 0);
68 ccdbg_send(dbg, mask, set);