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 #include "cc-bitbang.h"
30 dbg = calloc(sizeof (struct ccdbg), 1);
35 tty = getenv("CCDBG_TTY");
36 if (!tty || tty[0] == '/')
37 dbg->usb = cc_usb_open(tty);
39 dbg->bb = cc_bitbang_open();
49 ccdbg_close(struct ccdbg *dbg)
52 cc_usb_close(dbg->usb);
54 cc_bitbang_close(dbg->bb);
59 ccdbg_debug_mode(struct ccdbg *dbg)
62 cc_usb_debug_mode(dbg->usb);
64 cc_bitbang_debug_mode(dbg->bb);
68 ccdbg_reset(struct ccdbg *dbg)
71 cc_usb_reset(dbg->usb);
73 cc_bitbang_reset(dbg->bb);
77 ccdbg_send_bytes(struct ccdbg *dbg, uint8_t *bytes, int nbytes)
80 cc_usb_send_bytes(dbg->usb, bytes, nbytes);
82 cc_bitbang_send_bytes(dbg->bb, bytes, nbytes);
86 ccdbg_recv_bytes(struct ccdbg *dbg, uint8_t *bytes, int nbytes)
89 cc_usb_recv_bytes(dbg->usb, bytes, nbytes);
91 cc_bitbang_recv_bytes(dbg->bb, bytes, nbytes);
95 ccdbg_sync(struct ccdbg *dbg)
98 cc_usb_sync(dbg->usb);
100 cc_bitbang_sync(dbg->bb);
104 ccdbg_cmd_write(struct ccdbg *dbg, uint8_t cmd, uint8_t *data, int len)
106 ccdbg_send_bytes(dbg, &cmd, 1);
107 ccdbg_send_bytes(dbg, data, len);
111 ccdbg_cmd_write_read8(struct ccdbg *dbg, uint8_t cmd, uint8_t *data, int len)
114 ccdbg_cmd_write(dbg, cmd, data, len);
115 ccdbg_recv_bytes(dbg, byte, 1);
121 ccdbg_cmd_write_read16(struct ccdbg *dbg, uint8_t cmd, uint8_t *data, int len)
124 ccdbg_cmd_write(dbg, cmd, data, len);
125 ccdbg_recv_bytes(dbg, byte, 2);
127 return (byte[0] << 8) | byte[1];
131 ccdbg_cmd_write_queue8(struct ccdbg *dbg, uint8_t cmd,
132 uint8_t *data, int len,
135 ccdbg_cmd_write(dbg, cmd, data, len);
136 ccdbg_recv_bytes(dbg, reply, 1);