Import bluez-utils-3.36 revision history

1 files changed, 1373 insertions, 0 deletions

diff --git a/tools/hciattach.c b/tools/hciattach.c
new file mode 100644
index 00000000..439b6658
--- /dev/null
+++ b/tools/hciattach.c
@@ -0,0 +1,1373 @@
+/*
+ *
+ *  BlueZ - Bluetooth protocol stack for Linux
+ *
+ *  Copyright (C) 2000-2001  Qualcomm Incorporated
+ *  Copyright (C) 2002-2003  Maxim Krasnyansky <maxk@qualcomm.com>
+ *  Copyright (C) 2002-2008  Marcel Holtmann <marcel@holtmann.org>
+ *
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdio.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+#include <signal.h>
+#include <syslog.h>
+#include <termios.h>
+#include <time.h>
+#include <sys/time.h>
+#include <sys/poll.h>
+#include <sys/param.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <sys/uio.h>
+
+#include <bluetooth/bluetooth.h>
+#include <bluetooth/hci.h>
+#include <bluetooth/hci_lib.h>
+
+#ifndef N_HCI
+#define N_HCI	15
+#endif
+
+#define HCIUARTSETPROTO		_IOW('U', 200, int)
+#define HCIUARTGETPROTO		_IOR('U', 201, int)
+#define HCIUARTGETDEVICE	_IOR('U', 202, int)
+
+#define HCI_UART_H4	0
+#define HCI_UART_BCSP	1
+#define HCI_UART_3WIRE	2
+#define HCI_UART_H4DS	3
+#define HCI_UART_LL	4
+
+struct uart_t {
+	char *type;
+	int  m_id;
+	int  p_id;
+	int  proto;
+	int  init_speed;
+	int  speed;
+	int  flags;
+	char *bdaddr;
+	int  (*init) (int fd, struct uart_t *u, struct termios *ti);
+	int  (*post) (int fd, struct uart_t *u, struct termios *ti);
+};
+
+#define FLOW_CTL	0x0001
+
+static volatile sig_atomic_t __io_canceled = 0;
+
+static void sig_hup(int sig)
+{
+}
+
+static void sig_term(int sig)
+{
+	__io_canceled = 1;
+}
+
+static void sig_alarm(int sig)
+{
+	fprintf(stderr, "Initialization timed out.\n");
+	exit(1);
+}
+
+static int uart_speed(int s)
+{
+	switch (s) {
+	case 9600:
+		return B9600;
+	case 19200:
+		return B19200;
+	case 38400:
+		return B38400;
+	case 57600:
+		return B57600;
+	case 115200:
+		return B115200;
+	case 230400:
+		return B230400;
+	case 460800:
+		return B460800;
+	case 500000:
+		return B500000;
+	case 576000:
+		return B576000;
+	case 921600:
+		return B921600;
+	case 1000000:
+		return B1000000;
+	case 1152000:
+		return B1152000;
+	case 1500000:
+		return B1500000;
+	case 2000000:
+		return B2000000;
+#ifdef B2500000
+	case 2500000:
+		return B2500000;
+#endif
+#ifdef B3000000
+	case 3000000:
+		return B3000000;
+#endif
+#ifdef B3500000
+	case 3500000:
+		return B3500000;
+#endif
+#ifdef B4000000
+	case 4000000:
+		return B4000000;
+#endif
+	default:
+		return B57600;
+	}
+}
+
+int set_speed(int fd, struct termios *ti, int speed)
+{
+	cfsetospeed(ti, uart_speed(speed));
+	cfsetispeed(ti, uart_speed(speed));
+	return tcsetattr(fd, TCSANOW, ti);
+}
+
+/* 
+ * Read an HCI event from the given file descriptor.
+ */
+int read_hci_event(int fd, unsigned char* buf, int size) 
+{
+	int remain, r;
+	int count = 0;
+
+	if (size <= 0)
+		return -1;
+
+	/* The first byte identifies the packet type. For HCI event packets, it
+	 * should be 0x04, so we read until we get to the 0x04. */
+	while (1) {
+		r = read(fd, buf, 1);
+		if (r <= 0)
+			return -1;
+		if (buf[0] == 0x04)
+			break;
+	}
+	count++;
+
+	/* The next two bytes are the event code and parameter total length. */
+	while (count < 3) {
+		r = read(fd, buf + count, 3 - count);
+		if (r <= 0)
+			return -1;
+		count += r;
+	}
+
+	/* Now we read the parameters. */
+	if (buf[2] < (size - 3)) 
+		remain = buf[2];
+	else 
+		remain = size - 3;
+
+	while ((count - 3) < remain) {
+		r = read(fd, buf + count, remain - (count - 3));
+		if (r <= 0)
+			return -1;
+		count += r;
+	}
+
+	return count;
+}
+
+/* 
+ * Ericsson specific initialization 
+ */
+static int ericsson(int fd, struct uart_t *u, struct termios *ti)
+{
+	struct timespec tm = {0, 50000};
+	char cmd[5];
+
+	cmd[0] = HCI_COMMAND_PKT;
+	cmd[1] = 0x09;
+	cmd[2] = 0xfc;
+	cmd[3] = 0x01;
+
+	switch (u->speed) {
+	case 57600:
+		cmd[4] = 0x03;
+		break;
+	case 115200:
+		cmd[4] = 0x02;
+		break;
+	case 230400:
+		cmd[4] = 0x01;
+		break;
+	case 460800:
+		cmd[4] = 0x00;
+		break;
+	case 921600:
+		cmd[4] = 0x20;
+		break;
+	case 2000000:
+		cmd[4] = 0x25;
+		break;
+	case 3000000:
+		cmd[4] = 0x27;
+		break;
+	case 4000000:
+		cmd[4] = 0x2B;
+		break;
+	default:
+		cmd[4] = 0x03;
+		u->speed = 57600;
+		fprintf(stderr, "Invalid speed requested, using %d bps instead\n", u->speed);
+		break;
+	}
+
+	/* Send initialization command */
+	if (write(fd, cmd, 5) != 5) {
+		perror("Failed to write init command");
+		return -1;
+	}
+
+	nanosleep(&tm, NULL);
+	return 0;
+}
+
+/* 
+ * Digianswer specific initialization 
+ */
+static int digi(int fd, struct uart_t *u, struct termios *ti)
+{
+	struct timespec tm = {0, 50000};
+	char cmd[5];
+
+	/* DigiAnswer set baud rate command */
+	cmd[0] = HCI_COMMAND_PKT;
+	cmd[1] = 0x07;
+	cmd[2] = 0xfc;
+	cmd[3] = 0x01;
+
+	switch (u->speed) {
+	case 57600:
+		cmd[4] = 0x08;
+		break;
+	case 115200:
+		cmd[4] = 0x09;
+		break;
+	default:
+		cmd[4] = 0x09;
+		u->speed = 115200;
+		break;
+	}
+
+	/* Send initialization command */
+	if (write(fd, cmd, 5) != 5) {
+		perror("Failed to write init command");
+		return -1;
+	}
+
+	nanosleep(&tm, NULL);
+	return 0;
+}
+
+extern int texas_init(int fd, struct termios *ti);
+extern int texas_post(int fd, struct termios *ti);
+
+static int texas(int fd, struct uart_t *u, struct termios *ti)
+{
+	return texas_init(fd, ti);
+}
+
+static int texas2(int fd, struct uart_t *u, struct termios *ti)
+{
+	return texas_post(fd, ti);
+}
+
+extern int texasalt_init(int fd, int speed);
+
+static int texasalt(int fd, struct uart_t *u, struct termios *ti)
+{
+	return texasalt_init(fd, u->speed);
+}
+
+static int read_check(int fd, void *buf, int count)
+{
+	int res;
+
+	do {
+		res = read(fd, buf, count);
+		if (res != -1) {
+			buf += res; 
+			count -= res;
+		}
+	} while (count && (errno == 0 || errno == EINTR));
+
+	if (count)
+		return -1;
+
+	return 0;
+}
+
+/*
+ * BCSP specific initialization
+ */
+int serial_fd;
+
+static void bcsp_tshy_sig_alarm(int sig)
+{
+	static int retries=0;
+	unsigned char bcsp_sync_pkt[10] = {0xc0,0x00,0x41,0x00,0xbe,0xda,0xdc,0xed,0xed,0xc0};
+	int len;
+
+	if (retries < 10) {
+		retries++;
+		len = write(serial_fd, &bcsp_sync_pkt, 10);
+		alarm(1);
+		return;
+	}
+
+	tcflush(serial_fd, TCIOFLUSH);
+	fprintf(stderr, "BCSP initialization timed out\n");
+	exit(1);
+}
+
+static void bcsp_tconf_sig_alarm(int sig)
+{
+	static int retries=0;
+	unsigned char bcsp_conf_pkt[10] = {0xc0,0x00,0x41,0x00,0xbe,0xad,0xef,0xac,0xed,0xc0};
+	int len;
+
+	if (retries < 10){
+		retries++;
+		len = write(serial_fd, &bcsp_conf_pkt, 10);
+		alarm(1);
+		return;
+	}
+
+	tcflush(serial_fd, TCIOFLUSH);
+	fprintf(stderr, "BCSP initialization timed out\n");
+	exit(1);
+}
+
+static int bcsp(int fd, struct uart_t *u, struct termios *ti)
+{
+	unsigned char byte, bcsph[4], bcspp[4],
+		bcsp_sync_resp_pkt[10] = {0xc0,0x00,0x41,0x00,0xbe,0xac,0xaf,0xef,0xee,0xc0},
+		bcsp_conf_resp_pkt[10] = {0xc0,0x00,0x41,0x00,0xbe,0xde,0xad,0xd0,0xd0,0xc0},
+		bcspsync[4]     = {0xda, 0xdc, 0xed, 0xed},
+		bcspsyncresp[4] = {0xac,0xaf,0xef,0xee},
+		bcspconf[4]     = {0xad,0xef,0xac,0xed},
+		bcspconfresp[4] = {0xde,0xad,0xd0,0xd0};
+	struct sigaction sa;
+	int len;
+
+	if (set_speed(fd, ti, u->speed) < 0) {
+		perror("Can't set default baud rate");
+		return -1;
+	}
+
+	ti->c_cflag |= PARENB;
+	ti->c_cflag &= ~(PARODD);
+
+	if (tcsetattr(fd, TCSANOW, ti) < 0) {
+		perror("Can't set port settings");
+		return -1;
+	}
+
+	alarm(0);
+
+	serial_fd = fd;
+	memset(&sa, 0, sizeof(sa));
+	sa.sa_flags = SA_NOCLDSTOP;
+	sa.sa_handler = bcsp_tshy_sig_alarm;
+	sigaction(SIGALRM, &sa, NULL);
+
+	/* State = shy */
+
+	bcsp_tshy_sig_alarm(0);
+	while (1) {
+		do {
+			if (read_check(fd, &byte, 1) == -1){
+				perror("Failed to read");
+				return -1;
+			}
+		} while (byte != 0xC0);
+
+		do {
+			if ( read_check(fd, &bcsph[0], 1) == -1){
+				perror("Failed to read");
+				return -1;
+			}
+		} while (bcsph[0] == 0xC0);
+
+		if ( read_check(fd, &bcsph[1], 3) == -1){
+			perror("Failed to read");
+			return -1;
+		}
+
+		if (((bcsph[0] + bcsph[1] + bcsph[2]) & 0xFF) != (unsigned char)~bcsph[3])
+			continue;
+		if (bcsph[1] != 0x41 || bcsph[2] != 0x00)
+			continue;
+
+		if (read_check(fd, &bcspp, 4) == -1){
+			perror("Failed to read");
+			return -1;
+		}
+
+		if (!memcmp(bcspp, bcspsync, 4)) {
+			len = write(fd, &bcsp_sync_resp_pkt,10);
+		} else if (!memcmp(bcspp, bcspsyncresp, 4))
+			break;
+	}
+
+	/* State = curious */
+
+	alarm(0);
+	sa.sa_handler = bcsp_tconf_sig_alarm;
+	sigaction(SIGALRM, &sa, NULL);
+	alarm(1);
+
+	while (1) {
+		do {
+			if (read_check(fd, &byte, 1) == -1){
+				perror("Failed to read");
+				return -1;
+			}
+		} while (byte != 0xC0);
+
+		do {
+			if (read_check(fd, &bcsph[0], 1) == -1){
+				perror("Failed to read");
+				return -1;
+			}
+		} while (bcsph[0] == 0xC0);
+
+		if (read_check(fd, &bcsph[1], 3) == -1){
+			perror("Failed to read");
+			return -1;
+		}
+
+		if (((bcsph[0] + bcsph[1] + bcsph[2]) & 0xFF) != (unsigned char)~bcsph[3])
+			continue;
+
+		if (bcsph[1] != 0x41 || bcsph[2] != 0x00)
+			continue;
+
+		if (read_check(fd, &bcspp, 4) == -1){
+			perror("Failed to read");
+			return -1;
+		}
+
+		if (!memcmp(bcspp, bcspsync, 4))
+			len = write(fd, &bcsp_sync_resp_pkt, 10);
+		else if (!memcmp(bcspp, bcspconf, 4))
+			len = write(fd, &bcsp_conf_resp_pkt, 10);
+		else if (!memcmp(bcspp, bcspconfresp,  4))
+			break;
+	}
+
+	/* State = garrulous */
+
+	return 0;
+}
+
+/* 
+ * CSR specific initialization 
+ * Inspired strongly by code in OpenBT and experimentations with Brainboxes
+ * Pcmcia card.
+ * Jean Tourrilhes <jt@hpl.hp.com> - 14.11.01
+ */
+static int csr(int fd, struct uart_t *u, struct termios *ti)
+{
+	struct timespec tm = {0, 10000000};	/* 10ms - be generous */
+	unsigned char cmd[30];		/* Command */
+	unsigned char resp[30];		/* Response */
+	int  clen = 0;		/* Command len */
+	static int csr_seq = 0;	/* Sequence number of command */
+	int  divisor;
+
+	/* It seems that if we set the CSR UART speed straight away, it
+	 * won't work, the CSR UART gets into a state where we can't talk
+	 * to it anymore.
+	 * On the other hand, doing a read before setting the CSR speed
+	 * seems to be ok.
+	 * Therefore, the strategy is to read the build ID (useful for
+	 * debugging) and only then set the CSR UART speed. Doing like
+	 * this is more complex but at least it works ;-)
+	 * The CSR UART control may be slow to wake up or something because
+	 * every time I read its speed, its bogus...
+	 * Jean II */
+
+	/* Try to read the build ID of the CSR chip */
+	clen = 5 + (5 + 6) * 2;
+	/* HCI header */
+	cmd[0] = HCI_COMMAND_PKT;
+	cmd[1] = 0x00;		/* CSR command */
+	cmd[2] = 0xfc;		/* MANUFACTURER_SPEC */
+	cmd[3] = 1 + (5 + 6) * 2;	/* len */
+	/* CSR MSG header */
+	cmd[4] = 0xC2;		/* first+last+channel=BCC */
+	/* CSR BCC header */
+	cmd[5] = 0x00;		/* type = GET-REQ */
+	cmd[6] = 0x00;		/* - msB */
+	cmd[7] = 5 + 4;		/* len */
+	cmd[8] = 0x00;		/* - msB */
+	cmd[9] = csr_seq & 0xFF;/* seq num */
+	cmd[10] = (csr_seq >> 8) & 0xFF;	/* - msB */
+	csr_seq++;
+	cmd[11] = 0x19;		/* var_id = CSR_CMD_BUILD_ID */
+	cmd[12] = 0x28;		/* - msB */
+	cmd[13] = 0x00;		/* status = STATUS_OK */
+	cmd[14] = 0x00;		/* - msB */
+	/* CSR BCC payload */
+	memset(cmd + 15, 0, 6 * 2);
+
+	/* Send command */
+	do {
+		if (write(fd, cmd, clen) != clen) {
+			perror("Failed to write init command (GET_BUILD_ID)");
+			return -1;
+		}
+
+		/* Read reply. */
+		if (read_hci_event(fd, resp, 100) < 0) {
+			perror("Failed to read init response (GET_BUILD_ID)");
+			return -1;
+		}
+
+	/* Event code 0xFF is for vendor-specific events, which is 
+	 * what we're looking for. */
+	} while (resp[1] != 0xFF);
+
+#ifdef CSR_DEBUG
+	{
+	char temp[512];
+	int i;
+	for (i=0; i < rlen; i++)
+		sprintf(temp + (i*3), "-%02X", resp[i]);
+	fprintf(stderr, "Reading CSR build ID %d [%s]\n", rlen, temp + 1);
+	// In theory, it should look like :
+	// 04-FF-13-FF-01-00-09-00-00-00-19-28-00-00-73-00-00-00-00-00-00-00
+	}
+#endif
+	/* Display that to user */
+	fprintf(stderr, "CSR build ID 0x%02X-0x%02X\n", 
+		resp[15] & 0xFF, resp[14] & 0xFF);
+
+	/* Try to read the current speed of the CSR chip */
+	clen = 5 + (5 + 4)*2;
+	/* -- HCI header */
+	cmd[3] = 1 + (5 + 4)*2;	/* len */
+	/* -- CSR BCC header -- */
+	cmd[9] = csr_seq & 0xFF;	/* seq num */
+	cmd[10] = (csr_seq >> 8) & 0xFF;	/* - msB */
+	csr_seq++;
+	cmd[11] = 0x02;		/* var_id = CONFIG_UART */
+	cmd[12] = 0x68;		/* - msB */
+
+#ifdef CSR_DEBUG
+	/* Send command */
+	do {
+		if (write(fd, cmd, clen) != clen) {
+			perror("Failed to write init command (GET_BUILD_ID)");
+			return -1;
+		}
+
+		/* Read reply. */
+		if (read_hci_event(fd, resp, 100) < 0) {
+			perror("Failed to read init response (GET_BUILD_ID)");
+			return -1;
+		}
+
+	/* Event code 0xFF is for vendor-specific events, which is 
+	 * what we're looking for. */
+	} while (resp[1] != 0xFF);
+
+	{
+	char temp[512];
+	int i;
+	for (i=0; i < rlen; i++)
+		sprintf(temp + (i*3), "-%02X", resp[i]);
+	fprintf(stderr, "Reading CSR UART speed %d [%s]\n", rlen, temp+1);
+	}
+#endif
+
+	if (u->speed > 1500000) {
+		fprintf(stderr, "Speed %d too high. Remaining at %d baud\n", 
+			u->speed, u->init_speed);
+		u->speed = u->init_speed;
+	} else if (u->speed != 57600 && uart_speed(u->speed) == B57600) {
+		/* Unknown speed. Why oh why can't we just pass an int to the kernel? */
+		fprintf(stderr, "Speed %d unrecognised. Remaining at %d baud\n",
+			u->speed, u->init_speed);
+		u->speed = u->init_speed;
+	}
+	if (u->speed == u->init_speed)
+		return 0;
+
+	/* Now, create the command that will set the UART speed */
+	/* CSR BCC header */
+	cmd[5] = 0x02;			/* type = SET-REQ */
+	cmd[6] = 0x00;			/* - msB */
+	cmd[9] = csr_seq & 0xFF;	/* seq num */
+	cmd[10] = (csr_seq >> 8) & 0xFF;/* - msB */
+	csr_seq++;
+
+	divisor = (u->speed*64+7812)/15625;
+
+	/* No parity, one stop bit -> divisor |= 0x0000; */
+	cmd[15] = (divisor) & 0xFF;		/* divider */
+	cmd[16] = (divisor >> 8) & 0xFF;	/* - msB */
+	/* The rest of the payload will be 0x00 */
+
+#ifdef CSR_DEBUG
+	{
+	char temp[512];
+	int i;
+	for(i = 0; i < clen; i++)
+		sprintf(temp + (i*3), "-%02X", cmd[i]);
+	fprintf(stderr, "Writing CSR UART speed %d [%s]\n", clen, temp + 1);
+	// In theory, it should look like :
+	// 01-00-FC-13-C2-02-00-09-00-03-00-02-68-00-00-BF-0E-00-00-00-00-00-00
+	// 01-00-FC-13-C2-02-00-09-00-01-00-02-68-00-00-D8-01-00-00-00-00-00-00
+	}
+#endif
+
+	/* Send the command to set the CSR UART speed */
+	if (write(fd, cmd, clen) != clen) {
+		perror("Failed to write init command (SET_UART_SPEED)");
+		return -1;
+	}
+
+	nanosleep(&tm, NULL);
+	return 0;
+}
+
+/* 
+ * Silicon Wave specific initialization 
+ * Thomas Moser <thomas.moser@tmoser.ch>
+ */
+static int swave(int fd, struct uart_t *u, struct termios *ti)
+{
+	struct timespec tm = { 0, 500000 };
+	char cmd[10], rsp[100];
+	int r;
+
+	// Silicon Wave set baud rate command
+	// see HCI Vendor Specific Interface from Silicon Wave
+	// first send a "param access set" command to set the
+	// appropriate data fields in RAM. Then send a "HCI Reset
+	// Subcommand", e.g. "soft reset" to make the changes effective.
+
+	cmd[0] = HCI_COMMAND_PKT;	// it's a command packet
+	cmd[1] = 0x0B;			// OCF 0x0B	= param access set	
+	cmd[2] = 0xfc;			// OGF bx111111 = vendor specific
+	cmd[3] = 0x06;			// 6 bytes of data following
+	cmd[4] = 0x01;			// param sub command
+	cmd[5] = 0x11;			// tag 17 = 0x11 = HCI Transport Params
+	cmd[6] = 0x03;			// length of the parameter following
+	cmd[7] = 0x01;			// HCI Transport flow control enable
+	cmd[8] = 0x01;			// HCI Transport Type = UART
+
+	switch (u->speed) {
+	case 19200:
+		cmd[9] = 0x03;
+		break;
+	case 38400:
+		cmd[9] = 0x02;
+		break;
+	case 57600:
+		cmd[9] = 0x01;
+		break;
+	case 115200:
+		cmd[9] = 0x00;
+		break;
+	default:
+		u->speed = 115200;
+		cmd[9] = 0x00;
+		break;
+	}
+
+	/* Send initialization command */
+	if (write(fd, cmd, 10) != 10) {
+		perror("Failed to write init command");
+		return -1;
+	}
+
+	// We should wait for a "GET Event" to confirm the success of 
+	// the baud rate setting. Wait some time before reading. Better:  
+	// read with timeout, parse data 
+	// until correct answer, else error handling ... todo ...
+
+	nanosleep(&tm, NULL);
+
+	r = read(fd, rsp, sizeof(rsp));
+	if (r > 0) {
+		// guess it's okay, but we should parse the reply. But since
+		// I don't react on an error anyway ... todo
+		// Response packet format:
+		//  04	Event
+		//  FF	Vendor specific
+		//  07	Parameter length
+		//  0B	Subcommand
+		//  01	Setevent
+		//  11	Tag specifying HCI Transport Layer Parameter
+		//  03	length
+		//  01	flow on
+		//  01 	Hci Transport type = Uart
+		//  xx	Baud rate set (see above)
+	} else {
+		// ups, got error.
+		return -1;
+	}
+
+	// we probably got the reply. Now we must send the "soft reset"
+	// which is standard HCI RESET.
+
+	cmd[0] = HCI_COMMAND_PKT;	// it's a command packet
+	cmd[1] = 0x03;
+	cmd[2] = 0x0c;
+	cmd[3] = 0x00;
+
+	/* Send reset command */
+	if (write(fd, cmd, 4) != 4) {
+		perror("Can't write Silicon Wave reset cmd.");
+		return -1;
+	}
+
+	nanosleep(&tm, NULL);
+
+	// now the uart baud rate on the silicon wave module is set and effective.
+	// change our own baud rate as well. Then there is a reset event comming in
+ 	// on the *new* baud rate. This is *undocumented*! The packet looks like this:
+	// 04 FF 01 0B (which would make that a confirmation of 0x0B = "Param 
+	// subcommand class". So: change to new baud rate, read with timeout, parse
+	// data, error handling. BTW: all param access in Silicon Wave is done this way.
+	// Maybe this code would belong in a seperate file, or at least code reuse...
+
+	return 0;
+}
+
+/*
+ * ST Microelectronics specific initialization
+ * Marcel Holtmann <marcel@holtmann.org>
+ */
+static int st(int fd, struct uart_t *u, struct termios *ti)
+{
+	struct timespec tm = {0, 50000};
+	char cmd[5];
+
+	/* ST Microelectronics set baud rate command */
+	cmd[0] = HCI_COMMAND_PKT;
+	cmd[1] = 0x46;			// OCF = Hci_Cmd_ST_Set_Uart_Baud_Rate
+	cmd[2] = 0xfc;			// OGF = Vendor specific
+	cmd[3] = 0x01;
+
+	switch (u->speed) {
+	case 9600:
+		cmd[4] = 0x09;
+		break;
+	case 19200:
+		cmd[4] = 0x0b;
+		break;
+	case 38400:
+		cmd[4] = 0x0d;
+		break;
+	case 57600:
+		cmd[4] = 0x0e;
+		break;
+	case 115200:
+		cmd[4] = 0x10;
+		break;
+	case 230400:
+		cmd[4] = 0x12;
+		break;
+	case 460800:
+		cmd[4] = 0x13;
+		break;
+	case 921600:
+		cmd[4] = 0x14;
+		break;
+	default:
+		cmd[4] = 0x10;
+		u->speed = 115200;
+		break;
+	}
+
+	/* Send initialization command */
+	if (write(fd, cmd, 5) != 5) {
+		perror("Failed to write init command");
+		return -1;
+	}
+
+	nanosleep(&tm, NULL);
+	return 0;
+}
+
+extern int stlc2500_init(int fd, bdaddr_t *bdaddr);
+
+static int stlc2500(int fd, struct uart_t *u, struct termios *ti)
+{
+	bdaddr_t bdaddr;
+	unsigned char resp[10];
+	int n;
+	int rvalue;
+
+	/* STLC2500 has an ericsson core */
+	rvalue = ericsson(fd, u, ti);
+	if (rvalue != 0)
+		return rvalue;
+
+#ifdef STLC2500_DEBUG
+	fprintf(stderr, "Setting speed\n");
+#endif
+	if (set_speed(fd, ti, u->speed) < 0) {
+		perror("Can't set baud rate");
+		return -1;
+	}
+
+#ifdef STLC2500_DEBUG
+	fprintf(stderr, "Speed set...\n");
+#endif
+
+	/* Read reply */
+	if ((n = read_hci_event(fd, resp, 10)) < 0) {
+		fprintf(stderr, "Failed to set baud rate on chip\n");
+		return -1;
+	}
+
+#ifdef STLC2500_DEBUG
+	for (i = 0; i < n; i++) {
+		fprintf(stderr, "resp[%d] = %02x\n", i, resp[i]);
+	}
+#endif
+
+	str2ba(u->bdaddr, &bdaddr);
+	return stlc2500_init(fd, &bdaddr);
+}
+
+static int bgb2xx_init(int fd, bdaddr_t *bdaddr)
+{
+	/* This is broken and the routine got lost somewhere */
+	return -EIO;
+}
+
+static int bgb2xx(int fd, struct uart_t *u, struct termios *ti)
+{
+	bdaddr_t bdaddr;
+
+	str2ba(u->bdaddr, &bdaddr);
+
+	return bgb2xx_init(fd, &bdaddr);
+}
+
+/*
+ * Broadcom specific initialization
+ * Extracted from Jungo openrg
+ */
+static int bcm2035(int fd, struct uart_t *u, struct termios *ti)
+{
+	int n;
+	unsigned char cmd[30], resp[30];
+
+	/* Reset the BT Chip */
+	memset(cmd, 0, sizeof(cmd));
+	memset(resp, 0, sizeof(resp));
+	cmd[0] = HCI_COMMAND_PKT;
+	cmd[1] = 0x03;
+	cmd[2] = 0x0c;
+	cmd[3] = 0x00;
+
+	/* Send command */
+	if (write(fd, cmd, 4) != 4) {
+		fprintf(stderr, "Failed to write reset command\n");
+		return -1;
+	}
+
+	/* Read reply */
+	if ((n = read_hci_event(fd, resp, 4)) < 0) {
+		fprintf(stderr, "Failed to reset chip\n");
+		return -1;
+	}
+
+	if (u->bdaddr != NULL) {
+		/* Set BD_ADDR */
+		memset(cmd, 0, sizeof(cmd));
+		memset(resp, 0, sizeof(resp));
+		cmd[0] = HCI_COMMAND_PKT;
+		cmd[1] = 0x01;
+		cmd[2] = 0xfc;
+		cmd[3] = 0x06;
+		str2ba(u->bdaddr, (bdaddr_t *) (cmd + 4));
+
+		/* Send command */
+		if (write(fd, cmd, 10) != 10) {
+			fprintf(stderr, "Failed to write BD_ADDR command\n");
+			return -1;
+		}
+
+		/* Read reply */
+		if ((n = read_hci_event(fd, resp, 10)) < 0) {
+			fprintf(stderr, "Failed to set BD_ADDR\n");
+			return -1;
+		}
+	}
+
+	/* Read the local version info */
+	memset(cmd, 0, sizeof(cmd));
+	memset(resp, 0, sizeof(resp));
+	cmd[0] = HCI_COMMAND_PKT;
+	cmd[1] = 0x01;
+	cmd[2] = 0x10;
+	cmd[3] = 0x00;
+
+	/* Send command */
+	if (write(fd, cmd, 4) != 4) {
+		fprintf(stderr, "Failed to write \"read local version\" "
+			"command\n");
+		return -1;
+	}
+
+	/* Read reply */
+	if ((n = read_hci_event(fd, resp, 4)) < 0) {
+		fprintf(stderr, "Failed to read local version\n");
+		return -1;
+	}
+
+	/* Read the local supported commands info */
+	memset(cmd, 0, sizeof(cmd));
+	memset(resp, 0, sizeof(resp));
+	cmd[0] = HCI_COMMAND_PKT;
+	cmd[1] = 0x02;
+	cmd[2] = 0x10;
+	cmd[3] = 0x00;
+
+	/* Send command */
+	if (write(fd, cmd, 4) != 4) {
+		fprintf(stderr, "Failed to write \"read local supported "
+						"commands\" command\n");
+		return -1;
+	}
+
+	/* Read reply */
+	if ((n = read_hci_event(fd, resp, 4)) < 0) {
+		fprintf(stderr, "Failed to read local supported commands\n");
+		return -1;
+	}
+
+	/* Set the baud rate */
+	memset(cmd, 0, sizeof(cmd));
+	memset(resp, 0, sizeof(resp));
+	cmd[0] = HCI_COMMAND_PKT;
+	cmd[1] = 0x18;
+	cmd[2] = 0xfc;
+	cmd[3] = 0x02;
+	switch (u->speed) {
+	case 57600:
+		cmd[4] = 0x00;
+		cmd[5] = 0xe6;
+		break;
+	case 230400:
+		cmd[4] = 0x22;
+		cmd[5] = 0xfa;
+		break;
+	case 460800:
+		cmd[4] = 0x22;
+		cmd[5] = 0xfd;
+		break;
+	case 921600:
+		cmd[4] = 0x55;
+		cmd[5] = 0xff;
+		break;
+	default:
+		/* Default is 115200 */
+		cmd[4] = 0x00;
+		cmd[5] = 0xf3;
+		break;
+	}
+	fprintf(stderr, "Baud rate parameters: DHBR=0x%2x,DLBR=0x%2x\n",
+		cmd[4], cmd[5]);
+
+	/* Send command */
+	if (write(fd, cmd, 6) != 6) {
+		fprintf(stderr, "Failed to write \"set baud rate\" command\n");
+		return -1;
+	}
+
+	if ((n = read_hci_event(fd, resp, 6)) < 0) {
+		fprintf(stderr, "Failed to set baud rate\n");
+		return -1;
+	}
+
+	return 0;
+}
+
+struct uart_t uart[] = {
+	{ "any",        0x0000, 0x0000, HCI_UART_H4,   115200, 115200, FLOW_CTL, NULL, NULL     },
+	{ "ericsson",   0x0000, 0x0000, HCI_UART_H4,   57600,  115200, FLOW_CTL, NULL, ericsson },
+	{ "digi",       0x0000, 0x0000, HCI_UART_H4,   9600,   115200, FLOW_CTL, NULL, digi     },
+
+	{ "bcsp",       0x0000, 0x0000, HCI_UART_BCSP, 115200, 115200, 0,        NULL, bcsp     },
+
+	/* Xircom PCMCIA cards: Credit Card Adapter and Real Port Adapter */
+	{ "xircom",     0x0105, 0x080a, HCI_UART_H4,   115200, 115200, FLOW_CTL, NULL, NULL     },
+
+	/* CSR Casira serial adapter or BrainBoxes serial dongle (BL642) */
+	{ "csr",        0x0000, 0x0000, HCI_UART_H4,   115200, 115200, FLOW_CTL, NULL, csr      },
+
+	/* BrainBoxes PCMCIA card (BL620) */
+	{ "bboxes",     0x0160, 0x0002, HCI_UART_H4,   115200, 460800, FLOW_CTL, NULL, csr      },
+
+	/* Silicon Wave kits */
+	{ "swave",      0x0000, 0x0000, HCI_UART_H4,   115200, 115200, FLOW_CTL, NULL, swave    },
+
+	/* Texas Instruments Bluelink (BRF) modules */
+	{ "texas",      0x0000, 0x0000, HCI_UART_LL,   115200, 115200, FLOW_CTL, NULL, texas,    texas2 },
+	{ "texasalt",   0x0000, 0x0000, HCI_UART_LL,   115200, 115200, FLOW_CTL, NULL, texasalt, NULL   },
+
+	/* ST Microelectronics minikits based on STLC2410/STLC2415 */
+	{ "st",         0x0000, 0x0000, HCI_UART_H4,    57600, 115200, FLOW_CTL, NULL, st       },
+
+	/* ST Microelectronics minikits based on STLC2500 */
+	{ "stlc2500",   0x0000, 0x0000, HCI_UART_H4,   115200, 115200, FLOW_CTL, "00:80:E1:00:AB:BA", stlc2500 },
+
+	/* Philips generic Ericsson IP core based */
+	{ "philips",    0x0000, 0x0000, HCI_UART_H4,   115200, 115200, FLOW_CTL, NULL, NULL     },
+
+	/* Philips BGB2xx Module */
+	{ "bgb2xx",    0x0000, 0x0000, HCI_UART_H4,   115200, 115200, FLOW_CTL, "BD:B2:10:00:AB:BA", bgb2xx },
+
+	/* Sphinx Electronics PICO Card */
+	{ "picocard",   0x025e, 0x1000, HCI_UART_H4,   115200, 115200, FLOW_CTL, NULL, NULL     },
+
+	/* Inventel BlueBird Module */
+	{ "inventel",   0x0000, 0x0000, HCI_UART_H4,   115200, 115200, FLOW_CTL, NULL, NULL     },
+
+	/* COM One Platinium Bluetooth PC Card */
+	{ "comone",     0xffff, 0x0101, HCI_UART_BCSP, 115200, 115200, 0,        NULL, bcsp     },
+
+	/* TDK Bluetooth PC Card and IBM Bluetooth PC Card II */
+	{ "tdk",        0x0105, 0x4254, HCI_UART_BCSP, 115200, 115200, 0,        NULL, bcsp     },
+
+	/* Socket Bluetooth CF Card (Rev G) */
+	{ "socket",     0x0104, 0x0096, HCI_UART_BCSP, 230400, 230400, 0,        NULL, bcsp     },
+
+	/* 3Com Bluetooth Card (Version 3.0) */
+	{ "3com",       0x0101, 0x0041, HCI_UART_H4,   115200, 115200, FLOW_CTL, NULL, csr      },
+
+	/* AmbiCom BT2000C Bluetooth PC/CF Card */
+	{ "bt2000c",    0x022d, 0x2000, HCI_UART_H4,    57600, 460800, FLOW_CTL, NULL, csr      },
+
+	/* Zoom Bluetooth PCMCIA Card */
+	{ "zoom",       0x0279, 0x950b, HCI_UART_BCSP, 115200, 115200, 0,        NULL, bcsp     },
+
+	/* Sitecom CN-504 PCMCIA Card */
+	{ "sitecom",    0x0279, 0x950b, HCI_UART_BCSP, 115200, 115200, 0,        NULL, bcsp     },
+
+	/* Billionton PCBTC1 PCMCIA Card */
+	{ "billionton", 0x0279, 0x950b, HCI_UART_BCSP, 115200, 115200, 0,        NULL, bcsp     },
+
+	/* Broadcom BCM2035 */
+	{ "bcm2035",    0x0A5C, 0x2035, HCI_UART_H4,   115200, 460800, FLOW_CTL, NULL, bcm2035  },
+
+	{ NULL, 0 }
+};
+
+struct uart_t * get_by_id(int m_id, int p_id)
+{
+	int i;
+	for (i = 0; uart[i].type; i++) {
+		if (uart[i].m_id == m_id && uart[i].p_id == p_id)
+			return &uart[i];
+	}
+	return NULL;
+}
+
+struct uart_t * get_by_type(char *type)
+{
+	int i;
+	for (i = 0; uart[i].type; i++) {
+		if (!strcmp(uart[i].type, type))
+			return &uart[i];
+	}
+	return NULL;
+}
+
+/* Initialize UART driver */
+int init_uart(char *dev, struct uart_t *u, int send_break)
+{
+	struct termios ti;
+	int fd, i;
+
+	fd = open(dev, O_RDWR | O_NOCTTY);
+	if (fd < 0) {
+		perror("Can't open serial port");
+		return -1;
+	}
+
+	tcflush(fd, TCIOFLUSH);
+
+	if (tcgetattr(fd, &ti) < 0) {
+		perror("Can't get port settings");
+		return -1;
+	}
+
+	cfmakeraw(&ti);
+
+	ti.c_cflag |= CLOCAL;
+	if (u->flags & FLOW_CTL)
+		ti.c_cflag |= CRTSCTS;
+	else
+		ti.c_cflag &= ~CRTSCTS;
+
+	if (tcsetattr(fd, TCSANOW, &ti) < 0) {
+		perror("Can't set port settings");
+		return -1;
+	}
+
+	/* Set initial baudrate */
+	if (set_speed(fd, &ti, u->init_speed) < 0) {
+		perror("Can't set initial baud rate");
+		return -1;
+	}
+
+	tcflush(fd, TCIOFLUSH);
+
+	if (send_break) {
+		tcsendbreak(fd, 0);
+		usleep(500000);
+	}
+
+	if (u->init && u->init(fd, u, &ti) < 0)
+		return -1;
+
+	tcflush(fd, TCIOFLUSH);
+
+	/* Set actual baudrate */
+	if (set_speed(fd, &ti, u->speed) < 0) {
+		perror("Can't set baud rate");
+		return -1;
+	}
+
+	/* Set TTY to N_HCI line discipline */
+	i = N_HCI;
+	if (ioctl(fd, TIOCSETD, &i) < 0) {
+		perror("Can't set line discipline");
+		return -1;
+	}
+
+	if (ioctl(fd, HCIUARTSETPROTO, u->proto) < 0) {
+		perror("Can't set device");
+		return -1;
+	}
+
+	if (u->post && u->post(fd, u, &ti) < 0)
+		return -1;
+
+	return fd;
+}
+
+static void usage(void)
+{
+	printf("hciattach - HCI UART driver initialization utility\n");
+	printf("Usage:\n");
+	printf("\thciattach [-n] [-p] [-b] [-t timeout] [-s initial_speed] <tty> <type | id> [speed] [flow|noflow] [bdaddr]\n");
+	printf("\thciattach -l\n");
+}
+
+int main(int argc, char *argv[])
+{
+	struct uart_t *u = NULL;
+	int detach, printpid, opt, i, n, ld, err;
+	int to = 10;
+	int init_speed = 0;
+	int send_break = 0;
+	pid_t pid;
+	struct sigaction sa;
+	struct pollfd p;
+	char dev[PATH_MAX];
+
+	detach = 1;
+	printpid = 0;
+
+	while ((opt=getopt(argc, argv, "bnpt:s:l")) != EOF) {
+		switch(opt) {
+		case 'b':
+			send_break = 1;
+			break;
+
+		case 'n':
+			detach = 0;
+			break;
+
+		case 'p':
+			printpid = 1;
+			break;
+
+		case 't':
+			to = atoi(optarg);
+			break;
+
+		case 's':
+			init_speed = atoi(optarg);
+			break;
+
+		case 'l':
+			for (i = 0; uart[i].type; i++) {
+				printf("%-10s0x%04x,0x%04x\n", uart[i].type,
+							uart[i].m_id, uart[i].p_id);
+			}
+			exit(0);
+
+		default:
+			usage();
+			exit(1);
+		}
+	}
+
+	n = argc - optind;
+	if (n < 2) {
+		usage();
+		exit(1);
+	}
+
+	for (n = 0; optind < argc; n++, optind++) {
+		char *opt;
+
+		opt = argv[optind];
+
+		switch(n) {
+		case 0:
+			dev[0] = 0;
+			if (!strchr(opt, '/'))
+				strcpy(dev, "/dev/");
+			strcat(dev, opt);
+			break;
+
+		case 1:
+			if (strchr(argv[optind], ',')) {
+				int m_id, p_id;
+				sscanf(argv[optind], "%x,%x", &m_id, &p_id);
+				u = get_by_id(m_id, p_id);
+			} else {
+				u = get_by_type(opt);
+			}
+
+			if (!u) {
+				fprintf(stderr, "Unknown device type or id\n");
+				exit(1);
+			}
+			
+			break;
+
+		case 2:
+			u->speed = atoi(argv[optind]);
+			break;
+
+		case 3:
+			if (!strcmp("flow", argv[optind]))
+				u->flags |=  FLOW_CTL;
+			else
+				u->flags &= ~FLOW_CTL;
+			break;
+
+		case 4:
+			u->bdaddr = argv[optind];
+			break;
+		}
+	}
+
+	if (!u) {
+		fprintf(stderr, "Unknown device type or id\n");
+		exit(1);
+	}
+
+	/* If user specified a initial speed, use that instead of
+	   the hardware's default */
+	if (init_speed)
+		u->init_speed = init_speed;
+
+	memset(&sa, 0, sizeof(sa));
+	sa.sa_flags   = SA_NOCLDSTOP;
+	sa.sa_handler = sig_alarm;
+	sigaction(SIGALRM, &sa, NULL);
+
+	/* 10 seconds should be enough for initialization */
+	alarm(to);
+
+	n = init_uart(dev, u, send_break);
+	if (n < 0) {
+		perror("Can't initialize device"); 
+		exit(1);
+	}
+
+	alarm(0);
+
+	memset(&sa, 0, sizeof(sa));
+	sa.sa_flags   = SA_NOCLDSTOP;
+	sa.sa_handler = SIG_IGN;
+	sigaction(SIGCHLD, &sa, NULL);
+	sigaction(SIGPIPE, &sa, NULL);
+
+	sa.sa_handler = sig_term;
+	sigaction(SIGTERM, &sa, NULL);
+	sigaction(SIGINT,  &sa, NULL);
+
+	sa.sa_handler = sig_hup;
+	sigaction(SIGHUP, &sa, NULL);
+
+	if (detach) {
+		if ((pid = fork())) {
+			if (printpid)
+				printf("%d\n", pid);
+			return 0;
+		}
+
+		for (i = 0; i < 20; i++)
+			if (i != n)
+				close(i);
+	}
+
+	p.fd = n;
+	p.events = POLLERR | POLLHUP;
+
+	while (!__io_canceled) {
+		p.revents = 0;
+		err = poll(&p, 1, 500);
+		if (err < 0 && errno == EINTR)
+			continue;
+		if (err)
+			break;
+	}
+
+	/* Restore TTY line discipline */
+	ld = N_TTY;
+	if (ioctl(n, TIOCSETD, &ld) < 0) {
+		perror("Can't restore line discipline");
+		exit(1);
+	}
+
+	return 0;
+}