utils/tools/hciattach_tialt.c - platform/external/bluez - Git at Google

 /*
  *
  *	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
  *
  */

 #include <stdio.h>
 #include <errno.h>
 #include <fcntl.h>
 #include <stdlib.h>
 #include <string.h>
 #include <signal.h>
 #include <syslog.h>
 #include <termios.h>
 #include <time.h>
 #include <unistd.h>
 #include <sys/time.h>
 #include <sys/poll.h>
 #include <sys/param.h>
 #include <sys/ioctl.h>
 #include <sys/socket.h>
 #include <sys/endian.h>
 #include <sys/uio.h>

 #include <bluetooth/bluetooth.h>
 #include <bluetooth/hci.h>
 #include <bluetooth/hci_lib.h>

 #define FAILIF(x, args...) do {   \
 	if (x) {					  \
 		fprintf(stderr, ##args);  \
 		return -1;				  \
 	}							  \
 } while(0)

 typedef struct {
 	uint8_t uart_prefix;
 	hci_event_hdr hci_hdr;
 	evt_cmd_complete cmd_complete;
 	uint8_t status;
 	uint8_t data[16];
 } __attribute__((packed)) command_complete_t;

 extern int read_hci_event(int fd, unsigned char* buf, int size);
 extern int set_speed(int fd, struct termios *ti, int speed);

 static int read_command_complete(int fd, uint16_t opcode) {
 	command_complete_t resp;
 	/* Read reply. */
 	FAILIF(read_hci_event(fd, (unsigned char *)&resp, sizeof(resp)) < 0,
 		   "Failed to read response for opcode %#04x\n", opcode);

 	/* Parse speed-change reply */
 	FAILIF(resp.uart_prefix != HCI_EVENT_PKT,
 		   "Error in response: not an event packet, but %#02X!\n",
 		   resp.uart_prefix);

 	FAILIF(resp.hci_hdr.evt != EVT_CMD_COMPLETE, /* event must be event-complete */
 		   "Error in response: not a cmd-complete event, "
 		   "but 0x%02x!\n", resp.hci_hdr.evt);

 	FAILIF(resp.hci_hdr.plen < 4, /* plen >= 4 for EVT_CMD_COMPLETE */
 		   "Error in response: plen is not >= 4, but %#02X!\n",
 		   resp.hci_hdr.plen);

 	/* cmd-complete event: opcode */
 	FAILIF(resp.cmd_complete.opcode != (uint16_t)opcode,
 		   "Error in response: opcode is %#04X, not %#04X!",
 		   resp.cmd_complete.opcode, opcode);

 	FAILIF(resp.status != 0,
 		"Error in response: status is %x for opcode %#04x\n", resp.status,
 		   opcode);

 	return resp.status == 0 ? 0 : -1;
 }

 typedef struct {
 	uint8_t uart_prefix;
 	hci_command_hdr hci_hdr;
 	uint32_t speed;
 } __attribute__((packed)) texas_speed_change_cmd_t;

 static int texas_change_speed(int fd, struct termios *ti, uint32_t speed) {

 	/* Send a speed-change request */
 	texas_speed_change_cmd_t cmd;
 	int n;

 	cmd.uart_prefix = HCI_COMMAND_PKT;
 	cmd.hci_hdr.opcode = 0xff36;
 	cmd.hci_hdr.plen = sizeof(uint32_t);
 	cmd.speed = speed;

 	printf("Setting speed to %d\n", speed);
 	n = write(fd, &cmd, sizeof(cmd));
 	if (n < 0) {
 		perror("Failed to write speed-set command");
 		return -1;
 	}

 	if (n < (int)sizeof(cmd)) {
 		fprintf(stderr, "Wanted to write %d bytes, could only write %d. "
 				"Stop\n", (int)sizeof(cmd), n);
 		return -1;
 	}

 	/* Parse speed-change reply */
 	if (read_command_complete(fd, 0xff36) < 0) {
 		return -1;
 	}

 	if (set_speed(fd, ti, speed) < 0) {
 		perror("Can't set baud rate");
 		return -1;
 	}

 	printf("Texas speed changed to %d.\n", speed);
 	return 0;
 }

 static int texas_load_firmware(int fd, const char *firmware) {
 	int fw;

 	printf("Loading firmware from %s...\n", firmware);
 	fw = open(firmware, O_RDONLY);
 	FAILIF(fw < 0, "Could not open firmware file %s: %s (%d).\n",
 		   firmware, strerror(errno), errno);

 	while (1) {
 		unsigned char cmd[1024];
 		hci_command_hdr *hci_cmd;
 		unsigned int n;

 		/* read in H4 packets from firmware file */
 		n = read(fw, cmd, sizeof(hci_command_hdr) + 1);
 		if (!n) break;
 		FAILIF(n != sizeof(hci_command_hdr) + 1,
 			   "Could not read H4 + HCI header!\n");
 		FAILIF(cmd[0] != HCI_COMMAND_PKT,
 			   "Command is not an H4 command packet!\n");
 		hci_cmd = (hci_command_hdr *)&cmd[1];

 		FAILIF(read(fw, &cmd[sizeof(hci_command_hdr) + 1], hci_cmd->plen)
 			   != hci_cmd->plen,
 			   "Could not read %d bytes of data for opcode %#04X!\n",
 			   hci_cmd->plen, hci_cmd->opcode);

 		/* write h4 packet to chip */
 //		printf("opcode %#04X (%d bytes data)\n", hci_cmd->opcode, hci_cmd->plen);
 		n = write(fd, cmd, sizeof(hci_command_hdr) + 1 + hci_cmd->plen);
 		FAILIF(n != sizeof(hci_command_hdr) + 1 + hci_cmd->plen,
 			   "Could not send entire command (sent only %d bytes)!\n",
 			   n);
 		if (read_command_complete(fd, hci_cmd->opcode) < 0) {
 			return -1;
 		}
 	}
 	close(fw);

 	printf("Firmware load successful.\n");

 	return 0;
 }

 int texasalt_init(int fd, int speed, struct termios *ti)
 {
 	struct timespec tm = {0, 50000};
 	char cmd[4];
 	unsigned char resp[100];  /* Response */
 	int n;

 	memset(resp,'\0', 100);

 	/* It is possible to get software version with manufacturer specific
 	   HCI command HCI_VS_TI_Version_Number. But the only thing you get more
 	   is if this is point-to-point or point-to-multipoint module */

 	/* Get Manufacturer and LMP version */
 	cmd[0] = HCI_COMMAND_PKT;
 	cmd[1] = 0x01;
 	cmd[2] = 0x10;
 	cmd[3] = 0x00;

 	do {
 		n = write(fd, cmd, 4);
 		if (n < 0) {
 			perror("Failed to write init command (READ_LOCAL_VERSION_INFORMATION)");
 			return -1;
 		}
 		if (n < 4) {
 			fprintf(stderr, "Wanted to write 4 bytes, could only write %d. Stop\n", n);
 			return -1;
 		}

 		/* Read reply. */
 		if (read_hci_event(fd, resp, 100) < 0) {
 			perror("Failed to read init response (READ_LOCAL_VERSION_INFORMATION)");
 			return -1;
 		}

 		/* Wait for command complete event for our Opcode */
 	} while (resp[4] != cmd[1] && resp[5] != cmd[2]);

 	/* Verify manufacturer */
 	if ((resp[11] & 0xFF) != 0x0d)
 		fprintf(stderr,"WARNING : module's manufacturer is not Texas Instrument\n");

 	/* Print LMP version */
 	fprintf(stderr, "Texas module LMP version : %#02X\n", resp[10] & 0xFF);

 	/* Print LMP subversion */
 	{
 		uint16_t lmp_subv = resp[13] | (resp[14] << 8);
 		uint16_t brf_chip = (lmp_subv & 0x7c00) >> 10;
 		static const char *c_brf_chip[5] = {
 			"unknown",
 			"unknown",
 			"brf6100",
 			"brf6150",
 			"brf6300"
 		};

 		fprintf(stderr, "Texas module LMP sub-version : %#04X\n", lmp_subv);

 		fprintf(stderr,
 				"\tinternal version freeze: %d\n"
 				"\tsoftware version: %d\n"
 				"\tchip: %s (%d)\n",
 				lmp_subv & 0x7f,
 				((lmp_subv & 0x8000) >> (15-3)) | ((lmp_subv & 0x380) >> 7),
 				((brf_chip > 4) ? "unknown" : c_brf_chip[brf_chip]),
 				brf_chip);

 		char fw[100];
 		sprintf(fw, "/etc/firmware/%s.bin", c_brf_chip[brf_chip]);

 		texas_change_speed(fd, ti, speed);

 		texas_load_firmware(fd, fw);
 	}
 	nanosleep(&tm, NULL);
 	return 0;
 }
	/*
	*
	* 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
	*
	*/

	#include <stdio.h>
	#include <errno.h>
	#include <fcntl.h>
	#include <stdlib.h>
	#include <string.h>
	#include <signal.h>
	#include <syslog.h>
	#include <termios.h>
	#include <time.h>
	#include <unistd.h>
	#include <sys/time.h>
	#include <sys/poll.h>
	#include <sys/param.h>
	#include <sys/ioctl.h>
	#include <sys/socket.h>
	#include <sys/endian.h>
	#include <sys/uio.h>

	#include <bluetooth/bluetooth.h>
	#include <bluetooth/hci.h>
	#include <bluetooth/hci_lib.h>

	#define FAILIF(x, args...) do { \
	if (x) { \
	fprintf(stderr, ##args); \
	return -1; \
	} \
	} while(0)

	typedef struct {
	uint8_t uart_prefix;
	hci_event_hdr hci_hdr;
	evt_cmd_complete cmd_complete;
	uint8_t status;
	uint8_t data[16];
	} __attribute__((packed)) command_complete_t;

	extern int read_hci_event(int fd, unsigned char* buf, int size);
	extern int set_speed(int fd, struct termios *ti, int speed);

	static int read_command_complete(int fd, uint16_t opcode) {
	command_complete_t resp;
	/* Read reply. */
	FAILIF(read_hci_event(fd, (unsigned char *)&resp, sizeof(resp)) < 0,
	"Failed to read response for opcode %#04x\n", opcode);

	/* Parse speed-change reply */
	FAILIF(resp.uart_prefix != HCI_EVENT_PKT,
	"Error in response: not an event packet, but %#02X!\n",
	resp.uart_prefix);

	FAILIF(resp.hci_hdr.evt != EVT_CMD_COMPLETE, /* event must be event-complete */
	"Error in response: not a cmd-complete event, "
	"but 0x%02x!\n", resp.hci_hdr.evt);

	FAILIF(resp.hci_hdr.plen < 4, /* plen >= 4 for EVT_CMD_COMPLETE */
	"Error in response: plen is not >= 4, but %#02X!\n",
	resp.hci_hdr.plen);

	/* cmd-complete event: opcode */
	FAILIF(resp.cmd_complete.opcode != (uint16_t)opcode,
	"Error in response: opcode is %#04X, not %#04X!",
	resp.cmd_complete.opcode, opcode);

	FAILIF(resp.status != 0,
	"Error in response: status is %x for opcode %#04x\n", resp.status,
	opcode);

	return resp.status == 0 ? 0 : -1;
	}

	typedef struct {
	uint8_t uart_prefix;
	hci_command_hdr hci_hdr;
	uint32_t speed;
	} __attribute__((packed)) texas_speed_change_cmd_t;

	static int texas_change_speed(int fd, struct termios *ti, uint32_t speed) {

	/* Send a speed-change request */
	texas_speed_change_cmd_t cmd;
	int n;

	cmd.uart_prefix = HCI_COMMAND_PKT;
	cmd.hci_hdr.opcode = 0xff36;
	cmd.hci_hdr.plen = sizeof(uint32_t);
	cmd.speed = speed;

	printf("Setting speed to %d\n", speed);
	n = write(fd, &cmd, sizeof(cmd));
	if (n < 0) {
	perror("Failed to write speed-set command");
	return -1;
	}

	if (n < (int)sizeof(cmd)) {
	fprintf(stderr, "Wanted to write %d bytes, could only write %d. "
	"Stop\n", (int)sizeof(cmd), n);
	return -1;
	}

	/* Parse speed-change reply */
	if (read_command_complete(fd, 0xff36) < 0) {
	return -1;
	}

	if (set_speed(fd, ti, speed) < 0) {
	perror("Can't set baud rate");
	return -1;
	}

	printf("Texas speed changed to %d.\n", speed);
	return 0;
	}

	static int texas_load_firmware(int fd, const char *firmware) {
	int fw;

	printf("Loading firmware from %s...\n", firmware);
	fw = open(firmware, O_RDONLY);
	FAILIF(fw < 0, "Could not open firmware file %s: %s (%d).\n",
	firmware, strerror(errno), errno);

	while (1) {
	unsigned char cmd[1024];
	hci_command_hdr *hci_cmd;
	unsigned int n;

	/* read in H4 packets from firmware file */
	n = read(fw, cmd, sizeof(hci_command_hdr) + 1);
	if (!n) break;
	FAILIF(n != sizeof(hci_command_hdr) + 1,
	"Could not read H4 + HCI header!\n");
	FAILIF(cmd[0] != HCI_COMMAND_PKT,
	"Command is not an H4 command packet!\n");
	hci_cmd = (hci_command_hdr *)&cmd[1];

	FAILIF(read(fw, &cmd[sizeof(hci_command_hdr) + 1], hci_cmd->plen)
	!= hci_cmd->plen,
	"Could not read %d bytes of data for opcode %#04X!\n",
	hci_cmd->plen, hci_cmd->opcode);

	/* write h4 packet to chip */
	// printf("opcode %#04X (%d bytes data)\n", hci_cmd->opcode, hci_cmd->plen);
	n = write(fd, cmd, sizeof(hci_command_hdr) + 1 + hci_cmd->plen);
	FAILIF(n != sizeof(hci_command_hdr) + 1 + hci_cmd->plen,
	"Could not send entire command (sent only %d bytes)!\n",
	n);
	if (read_command_complete(fd, hci_cmd->opcode) < 0) {
	return -1;
	}
	}
	close(fw);

	printf("Firmware load successful.\n");

	return 0;
	}

	int texasalt_init(int fd, int speed, struct termios *ti)
	{
	struct timespec tm = {0, 50000};
	char cmd[4];
	unsigned char resp[100]; /* Response */
	int n;

	memset(resp,'\0', 100);

	/* It is possible to get software version with manufacturer specific
	HCI command HCI_VS_TI_Version_Number. But the only thing you get more
	is if this is point-to-point or point-to-multipoint module */

	/* Get Manufacturer and LMP version */
	cmd[0] = HCI_COMMAND_PKT;
	cmd[1] = 0x01;
	cmd[2] = 0x10;
	cmd[3] = 0x00;

	do {
	n = write(fd, cmd, 4);
	if (n < 0) {
	perror("Failed to write init command (READ_LOCAL_VERSION_INFORMATION)");
	return -1;
	}
	if (n < 4) {
	fprintf(stderr, "Wanted to write 4 bytes, could only write %d. Stop\n", n);
	return -1;
	}

	/* Read reply. */
	if (read_hci_event(fd, resp, 100) < 0) {
	perror("Failed to read init response (READ_LOCAL_VERSION_INFORMATION)");
	return -1;
	}

	/* Wait for command complete event for our Opcode */
	} while (resp[4] != cmd[1] && resp[5] != cmd[2]);

	/* Verify manufacturer */
	if ((resp[11] & 0xFF) != 0x0d)
	fprintf(stderr,"WARNING : module's manufacturer is not Texas Instrument\n");

	/* Print LMP version */
	fprintf(stderr, "Texas module LMP version : %#02X\n", resp[10] & 0xFF);

	/* Print LMP subversion */
	{
	uint16_t lmp_subv = resp[13] \| (resp[14] << 8);
	uint16_t brf_chip = (lmp_subv & 0x7c00) >> 10;
	static const char *c_brf_chip[5] = {
	"unknown",
	"unknown",
	"brf6100",
	"brf6150",
	"brf6300"
	};

	fprintf(stderr, "Texas module LMP sub-version : %#04X\n", lmp_subv);

	fprintf(stderr,
	"\tinternal version freeze: %d\n"
	"\tsoftware version: %d\n"
	"\tchip: %s (%d)\n",
	lmp_subv & 0x7f,
	((lmp_subv & 0x8000) >> (15-3)) \| ((lmp_subv & 0x380) >> 7),
	((brf_chip > 4) ? "unknown" : c_brf_chip[brf_chip]),
	brf_chip);

	char fw[100];
	sprintf(fw, "/etc/firmware/%s.bin", c_brf_chip[brf_chip]);

	texas_change_speed(fd, ti, speed);

	texas_load_firmware(fd, fw);
	}
	nanosleep(&tm, NULL);
	return 0;
	}