Initial revision

1 files changed, 751 insertions, 0 deletions

diff --git a/tools/hciattach.c b/tools/hciattach.c
new file mode 100644
index 00000000..a4489019
--- /dev/null
+++ b/tools/hciattach.c
@@ -0,0 +1,751 @@
+/* 
+	BlueZ - Bluetooth protocol stack for Linux
+	Copyright (C) 2000-2001 Qualcomm Incorporated
+
+	Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License version 2 as
+	published by the Free Software Foundation;
+
+	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+	OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
+	IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY CLAIM,
+	OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER
+	RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
+	NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE
+	USE OR PERFORMANCE OF THIS SOFTWARE.
+
+	ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, COPYRIGHTS,
+	TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS SOFTWARE IS DISCLAIMED.
+*/
+/*
+ * $Id$
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <signal.h>
+#include <fcntl.h>
+#include <syslog.h>
+#include <errno.h>
+#include <time.h>
+#include <termios.h>
+#include <fcntl.h>
+
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <sys/time.h>
+#include <asm/types.h>
+
+#include <bluetooth.h>
+#include <hci.h>
+#include <hci_uart.h>
+#include <hci_lib.h>
+
+struct uart_t {
+	char *type;
+	int  m_id;
+	int  p_id;
+	int  proto;
+	int  speed;
+	int  flags;
+	int  (*init) (int fd, struct uart_t *u, struct termios *ti);
+};
+
+#define FLOW_CTL	0x0001
+
+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 921600:
+		return B921600;
+	default:
+		return B57600;
+	}
+}
+
+static int set_speed(int fd, struct termios *ti, int speed)
+{
+	cfsetospeed(ti, uart_speed(speed));
+	return tcsetattr(fd, TCSANOW, ti);
+}
+
+static void sig_alarm(int sig)
+{
+	fprintf(stderr, "Initialization timed out.\n");
+	exit(1);
+}
+
+/* 
+ * Read an HCI event from the given file descriptor.
+ */
+static 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[10];
+
+	/* Switch to default Ericsson baudrate*/
+	if (set_speed(fd, ti, 57600) < 0) {
+		perror("Can't set default baud rate");
+		return -1;
+	}
+
+	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;
+	default:
+		cmd[4] = 0x03;
+		u->speed = 57600;
+		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[10];
+
+	/* Switch to default Digi baudrate*/
+	if (set_speed(fd, ti, 9600) < 0) {
+		perror("Can't set default baud rate");
+		return -1;
+	}
+
+	/* 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;
+}
+
+/* 
+ * 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;
+
+	/* Switch to default CSR baudrate */
+	if (set_speed(fd, ti, 115200) < 0) {
+		perror("Can't set default baud rate");
+		return -1;
+	}
+
+	/* 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
+
+	/* 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++;
+
+	switch (u->speed) {
+	case 9600:
+		divisor = 0x0027;
+		break;
+	/* Various speeds ommited */ 
+	case 57600:
+		divisor = 0x00EC;
+		break;
+	case 115200:
+		divisor = 0x01D8;
+		break;
+	/* For Brainbox Pcmcia cards */
+	case 460800:
+		divisor = 0x075F;
+		break;
+	case 921600:
+		divisor = 0x0EBF;
+		break;
+	default:
+		/* Safe default */
+		divisor = 0x01D8;
+		u->speed = 115200;
+		break;
+	}
+	/* 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;
+
+	/* Switch to default Silicon Wave baudrate*/
+	if (set_speed(fd, ti, 115200) < 0) {
+		perror("Can't set default baud rate");
+		return -1;
+	}
+
+	// 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) != 5) {
+		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":
+	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] = 0x01;			// 1 byte of data following 
+	cmd[4] = 0x03;			// HCI Reset Subcommand
+			
+	// Send initialization command
+	if (write(fd, cmd, 5) != 5) {
+		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;
+}
+
+struct uart_t uart[] = {
+	{ "any",      0x0000, 0x0000, HCI_UART_H4, 115200, FLOW_CTL, NULL },
+	{ "ericsson", 0x0000, 0x0000, HCI_UART_H4, 115200, FLOW_CTL, ericsson },
+	{ "digi",     0x0000, 0x0000, HCI_UART_H4, 115200, FLOW_CTL, digi },
+
+	/* Xircom PCMCIA cards: Credit Card Adapter and Real Port Adapter */
+	{ "xircom",   0x0105, 0x080a, HCI_UART_H4, 115200, FLOW_CTL, NULL },
+
+	/* CSR Casira serial adapter or BrainBoxes serial dongle (BL642) */
+	{ "csr",      0x0000, 0x0000, HCI_UART_H4, 115200, FLOW_CTL, csr },
+
+	/* BrainBoxes PCMCIA card (BL620) */
+	{ "bboxes",   0x0160, 0x0002, HCI_UART_H4, 460800, FLOW_CTL, csr },
+
+	/* Silicon Wave kits */
+	{ "swave",    0x0000, 0x0000, HCI_UART_H4, 115200, FLOW_CTL, swave },
+
+	/* Sphinx Electronics PICO Card */
+	{ "picocard", 0x025e, 0x1000, HCI_UART_H4, 115200, FLOW_CTL, NULL },
+
+        { 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)
+{
+	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;
+	}
+
+	tcflush(fd, TCIOFLUSH);
+
+	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 discpline */
+	i = N_HCI;
+	if (ioctl(fd, TIOCSETD, &i) < 0) {
+		perror("Can't set line disc");
+		return -1;
+	}
+
+	if (ioctl(fd, HCIUARTSETPROTO, u->proto) < 0) {
+		perror("Can't set device");
+		return -1;
+	}
+
+	return fd;
+}
+
+static void usage(void)
+{
+	printf("hciattach - HCI UART driver initialization utility\n");
+	printf("Usage:\n");
+	printf("\thciattach <tty> <type | id> [speed] [flow]\n");
+	printf("\thciattach -l\n");
+}
+
+extern int optind, opterr, optopt;
+extern char *optarg;
+
+int main(int argc, char *argv[])
+{
+	struct uart_t *u = NULL;
+	int detach, opt, i, n;
+	int to = 5; 
+	struct sigaction sa;
+	char dev[20];
+
+	detach = 1;
+	
+	while ((opt=getopt(argc, argv, "nt:l")) != EOF) {
+		switch(opt) {
+		case 'n':
+			detach = 0;
+			break;
+		
+		case 't':
+			to = 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, "Unknow 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;
+		}
+	}
+
+	if (!u) {
+		fprintf(stderr, "Unknow device type or id\n");
+		exit(1);
+	}
+
+	memset(&sa, 0, sizeof(sa));
+	sa.sa_flags = SA_NOCLDSTOP;
+	sa.sa_handler = sig_alarm;
+	sigaction(SIGALRM, &sa, NULL);
+
+	/* 5 seconds should be enought for intialization */
+	alarm(to);
+	
+	n = init_uart(dev, u);
+	if (n < 0) {
+		perror("Can't init device"); 
+		exit(1);
+	}
+
+	alarm(0);
+
+	if (detach) {
+	       	if (fork()) return 0;
+		for (i=0; i<20; i++)
+			if (i != n) close(i);
+	}
+
+	while (1) sleep(999999999);
+	return 0;
+}