usr.sbin/btattach/init_st.c

   1 /*      $NetBSD: init_st.c,v 1.1 2008/04/15 11:17:48 plunky 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_st.c,v 1.1 2008/04/15 11:17:48 plunky 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_ST_SET_UART_BAUD_RATE   \
  45         HCI_OPCODE(HCI_OGF_VENDOR, 0x046)
  46
  47 void
  48 init_st(int fd, unsigned int speed)
  49 {
  50         uint8_t rate;
  51
  52         switch(speed) {
  53         case B9600:     rate = 0x09;    break;
  54         case B19200:    rate = 0x0b;    break;
  55         case B38400:    rate = 0x0d;    break;
  56         case B57600:    rate = 0x0e;    break;
  57         case B115200:   rate = 0x10;    break;
  58         case B230400:   rate = 0x12;    break;
  59         case B460800:   rate = 0x13;    break;
  60         case B921600:   rate = 0x14;    break;
  61         default:
  62                 errx(EXIT_FAILURE, "invalid speed for st: %u\n", speed);
  63         }
  64
  65         uart_send_cmd(fd, HCI_CMD_ST_SET_UART_BAUD_RATE, &rate, sizeof(rate));
  66         /* wait for response? */
  67         /* assume it succeeded? */
  68 }