1 /* $NetBSD: init_bcm2035.c,v 1.3 2015/06/16 23:04:14 christos Exp $ */
2
3 /*-
4 * Copyright (c) 2008 Iain Hibbert
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28 /*
29 * init information in this file gleaned from hciattach(8)
30 * command from BlueZ for Linux - see http://www.bluez.org/
31 */
32
33 #include <sys/cdefs.h>
34 __RCSID("$NetBSD: init_bcm2035.c,v 1.3 2015/06/16 23:04:14 christos Exp $");
35
36 #include <bluetooth.h>
37 #include <err.h>
38 #include <errno.h>
39 #include <stdlib.h>
40 #include <termios.h>
41
42 #include "btattach.h"
43
44 #define HCI_CMD_BCM2035_SET_UART_BAUD_RATE \
45 HCI_OPCODE(HCI_OGF_VENDOR, 0x018)
46
47 #define HCI_CMD_BCM2035_SET_BDADDR \
48 HCI_OPCODE(HCI_OGF_VENDOR, 0x001)
49
50 void
init_bcm2035(int fd,unsigned int speed)51 init_bcm2035(int fd, unsigned int speed)
52 {
53 uint16_t rate;
54
55 uart_send_cmd(fd, HCI_CMD_RESET, NULL, 0);
56
57 uart_recv_cc(fd, HCI_CMD_RESET, NULL, 0);
58 /* assume it succeeded? */
59
60 /* can also set the bdaddr */
61
62 switch(speed) {
63 case B57600: rate = 0xe600; break;
64 case B115200: rate = 0xf300; break;
65 case B230400: rate = 0xfa22; break;
66 case B460800: rate = 0xfd22; break;
67 case B921600: rate = 0xff55; break;
68 default:
69 errx(EXIT_FAILURE, "invalid speed for bcm2035: %u", speed);
70 };
71
72 rate = htole16(rate);
73 uart_send_cmd(fd, HCI_CMD_BCM2035_SET_UART_BAUD_RATE, &rate, sizeof(rate));
74 uart_recv_cc(fd, HCI_CMD_BCM2035_SET_UART_BAUD_RATE, NULL, 0);
75 /* assume it succeeded? */
76 }
77