244 lines
6.3 KiB
C
244 lines
6.3 KiB
C
/*
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*
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* BlueZ - Bluetooth protocol stack for Linux
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*
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* Copyright (C) 2005-2010 Marcel Holtmann <marcel@holtmann.org>
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <stdio.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <string.h>
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#include <signal.h>
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#include <syslog.h>
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#include <termios.h>
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#include <time.h>
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#include <sys/time.h>
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#include <sys/poll.h>
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#include <sys/param.h>
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#include <sys/ioctl.h>
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#include <sys/uio.h>
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#include <bluetooth/bluetooth.h>
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#include <bluetooth/hci.h>
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#include <bluetooth/hci_lib.h>
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#include "hciattach.h"
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#define FAILIF(x, args...) do { \
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if (x) { \
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fprintf(stderr, ##args); \
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return -1; \
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} \
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} while(0)
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typedef struct {
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uint8_t uart_prefix;
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hci_event_hdr hci_hdr;
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evt_cmd_complete cmd_complete;
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uint8_t status;
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uint8_t data[16];
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} __attribute__((packed)) command_complete_t;
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static int read_command_complete(int fd, unsigned short opcode, unsigned char len) {
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command_complete_t resp;
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/* Read reply. */
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FAILIF(read_hci_event(fd, (unsigned char *)&resp, sizeof(resp)) < 0,
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"Failed to read response");
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/* Parse speed-change reply */
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FAILIF(resp.uart_prefix != HCI_EVENT_PKT,
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"Error in response: not an event packet, but 0x%02x!\n",
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resp.uart_prefix);
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FAILIF(resp.hci_hdr.evt != EVT_CMD_COMPLETE, /* event must be event-complete */
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"Error in response: not a cmd-complete event, "
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"but 0x%02x!\n", resp.hci_hdr.evt);
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FAILIF(resp.hci_hdr.plen < 4, /* plen >= 4 for EVT_CMD_COMPLETE */
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"Error in response: plen is not >= 4, but 0x%02x!\n",
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resp.hci_hdr.plen);
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/* cmd-complete event: opcode */
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FAILIF(resp.cmd_complete.opcode != (uint16_t)opcode,
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"Error in response: opcode is 0x%04x, not 0x%04x!",
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resp.cmd_complete.opcode, opcode);
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return resp.status == 0 ? 0 : -1;
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}
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typedef struct {
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uint8_t uart_prefix;
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hci_command_hdr hci_hdr;
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uint32_t speed;
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} __attribute__((packed)) texas_speed_change_cmd_t;
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static int texas_change_speed(int fd, uint32_t speed)
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{
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return 0;
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}
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static int texas_load_firmware(int fd, const char *firmware) {
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int fw = open(firmware, O_RDONLY);
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fprintf(stdout, "Opening firmware file: %s\n", firmware);
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FAILIF(fw < 0,
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"Could not open firmware file %s: %s (%d).\n",
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firmware, strerror(errno), errno);
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fprintf(stdout, "Uploading firmware...\n");
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do {
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/* Read each command and wait for a response. */
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unsigned char data[1024];
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unsigned char cmdp[1 + sizeof(hci_command_hdr)];
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hci_command_hdr *cmd = (hci_command_hdr *)(cmdp + 1);
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int nr;
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nr = read(fw, cmdp, sizeof(cmdp));
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if (!nr)
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break;
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FAILIF(nr != sizeof(cmdp), "Could not read H4 + HCI header!\n");
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FAILIF(*cmdp != HCI_COMMAND_PKT, "Command is not an H4 command packet!\n");
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FAILIF(read(fw, data, cmd->plen) != cmd->plen,
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"Could not read %d bytes of data for command with opcode %04x!\n",
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cmd->plen,
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cmd->opcode);
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{
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int nw;
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#if 0
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fprintf(stdout, "\topcode 0x%04x (%d bytes of data).\n",
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cmd->opcode,
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cmd->plen);
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#endif
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struct iovec iov_cmd[2];
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iov_cmd[0].iov_base = cmdp;
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iov_cmd[0].iov_len = sizeof(cmdp);
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iov_cmd[1].iov_base = data;
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iov_cmd[1].iov_len = cmd->plen;
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nw = writev(fd, iov_cmd, 2);
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FAILIF(nw != (int) sizeof(cmd) + cmd->plen,
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"Could not send entire command (sent only %d bytes)!\n",
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nw);
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}
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/* Wait for response */
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if (read_command_complete(fd,
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cmd->opcode,
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cmd->plen) < 0) {
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return -1;
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}
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} while(1);
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fprintf(stdout, "Firmware upload successful.\n");
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close(fw);
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return 0;
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}
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int texasalt_init(int fd, int speed, struct termios *ti)
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{
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struct timespec tm = {0, 50000};
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char cmd[4];
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unsigned char resp[100]; /* Response */
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int n;
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memset(resp,'\0', 100);
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/* It is possible to get software version with manufacturer specific
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HCI command HCI_VS_TI_Version_Number. But the only thing you get more
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is if this is point-to-point or point-to-multipoint module */
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/* Get Manufacturer and LMP version */
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cmd[0] = HCI_COMMAND_PKT;
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cmd[1] = 0x01;
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cmd[2] = 0x10;
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cmd[3] = 0x00;
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do {
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n = write(fd, cmd, 4);
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if (n < 0) {
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perror("Failed to write init command (READ_LOCAL_VERSION_INFORMATION)");
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return -1;
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}
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if (n < 4) {
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fprintf(stderr, "Wanted to write 4 bytes, could only write %d. Stop\n", n);
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return -1;
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}
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/* Read reply. */
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if (read_hci_event(fd, resp, 100) < 0) {
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perror("Failed to read init response (READ_LOCAL_VERSION_INFORMATION)");
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return -1;
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}
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/* Wait for command complete event for our Opcode */
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} while (resp[4] != cmd[1] && resp[5] != cmd[2]);
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/* Verify manufacturer */
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if ((resp[11] & 0xFF) != 0x0d)
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fprintf(stderr,"WARNING : module's manufacturer is not Texas Instrument\n");
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/* Print LMP version */
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fprintf(stderr, "Texas module LMP version : 0x%02x\n", resp[10] & 0xFF);
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/* Print LMP subversion */
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{
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unsigned short lmp_subv = resp[13] | (resp[14] << 8);
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unsigned short brf_chip = (lmp_subv & 0x7c00) >> 10;
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static const char *c_brf_chip[8] = {
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"unknown",
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"unknown",
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"brf6100",
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"brf6150",
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"brf6300",
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"brf6350",
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"unknown",
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"wl1271"
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};
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char fw[100];
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fprintf(stderr, "Texas module LMP sub-version : 0x%04x\n", lmp_subv);
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fprintf(stderr,
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"\tinternal version freeze: %d\n"
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"\tsoftware version: %d\n"
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"\tchip: %s (%d)\n",
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lmp_subv & 0x7f,
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((lmp_subv & 0x8000) >> (15-3)) | ((lmp_subv & 0x380) >> 7),
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((brf_chip > 7) ? "unknown" : c_brf_chip[brf_chip]),
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brf_chip);
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sprintf(fw, "/etc/firmware/%s.bin", c_brf_chip[brf_chip]);
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texas_load_firmware(fd, fw);
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texas_change_speed(fd, speed);
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}
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nanosleep(&tm, NULL);
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return 0;
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}
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