123 lines
3.5 KiB
C
123 lines
3.5 KiB
C
/* $NetBSD: init_unistone.c,v 1.3 2015/06/16 23:54:58 christos Exp $ */
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/*
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* Copyright (c) 2009 KIYOHARA Takashi
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* init information in this file gleaned from hciattach(8)
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* command from Gumstix's patch for BlueZ.
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*/
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#include <sys/cdefs.h>
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__RCSID("$NetBSD: init_unistone.c,v 1.3 2015/06/16 23:54:58 christos Exp $");
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#include <bluetooth.h>
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#include <err.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <termios.h>
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#include <unistd.h>
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#include <sys/ioctl.h>
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#include "btattach.h"
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#define HCI_CMD_INFINEON_SET_UART_BAUDRATE \
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HCI_OPCODE(HCI_OGF_VENDOR, 0x006)
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static int infineon_manufacturer_mode(int, int);
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static int
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infineon_manufacturer_mode(int fd, int enable)
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{
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hci_status_rp rp;
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uint8_t cmd[2];
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int n;
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cmd[0] = enable;
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cmd[1] = 0; /* No reset */
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uart_send_cmd(fd, 0xfc11, cmd, sizeof(cmd));
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n = uart_recv_cc(fd, 0xfc11, &rp, sizeof(rp));
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if (n != sizeof(rp) || rp.status != 0x00)
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errx(EXIT_FAILURE, "Manufacturer mode %s failed",
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enable ? "enable" : "disable");
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return 0;
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}
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void
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init_unistone(int fd, unsigned int speed)
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{
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hci_command_status_ep cs;
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struct termios tio;
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uint8_t rate, v[2];
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int n;
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switch(speed) {
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case B9600: rate = 0x00; break;
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case B19200: rate = 0x01; break;
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case B38400: rate = 0x02; break;
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case B57600: rate = 0x03; break;
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case B115200: rate = 0x04; break;
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case B230400: rate = 0x05; break;
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case B460800: rate = 0x06; break;
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case B921600: rate = 0x07; break;
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#if 0
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case B1843200: rate = 0x08; break;
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#endif
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default:
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errx(EXIT_FAILURE, "invalid speed for infineon unistone: %u",
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speed);
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}
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if (tcgetattr(fd, &tio) != 0)
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err(EXIT_FAILURE, "can't get baud rate");
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infineon_manufacturer_mode(fd, 1);
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uart_send_cmd(fd, HCI_CMD_INFINEON_SET_UART_BAUDRATE, &rate,
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sizeof(rate));
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n = uart_recv_ev(fd, HCI_EVENT_COMMAND_STATUS, &cs, sizeof(cs));
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if (n != sizeof(cs) ||
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cs.status != 0x00 ||
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cs.opcode != HCI_CMD_INFINEON_SET_UART_BAUDRATE)
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errx(EXIT_FAILURE, "Set_UART_Baudrate failed");
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if (cfsetspeed(&tio, speed) != 0 ||
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tcsetattr(fd, TCSANOW, &tio) != 0)
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err(EXIT_FAILURE, "can't change baud rate");
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n = uart_recv_ev(fd, HCI_EVENT_VENDOR, &v, sizeof(v));
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if (n != sizeof(v) ||
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v[0] != 0x12 ||
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v[1] != 0x00)
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errx(EXIT_FAILURE, "Set_UART_Baudrate not complete");
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infineon_manufacturer_mode(fd, 0);
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}
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