1/*	$NetBSD: init_bcm2035.c,v 1.2 2009/04/15 00:32:23 lukem 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 1.2 2009/04/15 00:32:23 lukem 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
50void
51init_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