utils/tools/hciattach_tialt.c

   1 /*
   2  *
   3  *      BlueZ - Bluetooth protocol stack for Linux
   4  *
   5  *      Copyright (C) 2000-2001  Qualcomm Incorporated
   6  *      Copyright (C) 2002-2003  Maxim Krasnyansky <maxk@qualcomm.com>
   7  *      Copyright (C) 2002-2008  Marcel Holtmann <marcel@holtmann.org>
   8  *
   9  *
  10  *      This program is free software; you can redistribute it and/or modify
  11  *      it under the terms of the GNU General Public License as published by
  12  *      the Free Software Foundation; either version 2 of the License, or
  13  *      (at your option) any later version.
  14  *
  15  *      This program is distributed in the hope that it will be useful,
  16  *      but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  *      GNU General Public License for more details.
  19  *
  20  *      You should have received a copy of the GNU General Public License
  21  *      along with this program; if not, write to the Free Software
  22  *      Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  23  *
  24  */
  25
  26 #include <stdio.h>
  27 #include <errno.h>
  28 #include <fcntl.h>
  29 #include <unistd.h>
  30 #include <stdlib.h>
  31 #include <string.h>
  32 #include <signal.h>
  33 #include <syslog.h>
  34 #include <termios.h>
  35 #include <time.h>
  36 #include <sys/time.h>
  37 #include <sys/poll.h>
  38 #include <sys/param.h>
  39 #include <sys/ioctl.h>
  40 #include <sys/socket.h>
  41 #include <sys/endian.h>
  42 #include <sys/uio.h>
  43
  44 #include <bluetooth/bluetooth.h>
  45 #include <bluetooth/hci.h>
  46 #include <bluetooth/hci_lib.h>
  47
  48 #define FAILIF(x, args...) do {   \
  49         if (x) {                                          \
  50                 fprintf(stderr, ##args);  \
  51                 return -1;                                \
  52         }                                                         \
  53 } while(0)
  54
  55 typedef struct {
  56         uint8_t uart_prefix;
  57         hci_event_hdr hci_hdr;
  58         evt_cmd_complete cmd_complete;
  59         uint8_t status;
  60         uint8_t data[16];
  61 } __attribute__((packed)) command_complete_t;
  62
  63 extern int read_hci_event(int fd, unsigned char* buf, int size);
  64
  65 static int read_command_complete(int fd, unsigned short opcode, unsigned char len) {
  66         command_complete_t resp;
  67         /* Read reply. */
  68         FAILIF(read_hci_event(fd, (char *)&resp, sizeof(resp)) < 0,
  69                    "Failed to read response");
  70
  71         /* Parse speed-change reply */
  72         FAILIF(resp.uart_prefix != HCI_EVENT_PKT,
  73                    "Error in response: not an event packet, but 0x%02x!\n",
  74                    resp.uart_prefix);
  75
  76         FAILIF(resp.hci_hdr.evt != EVT_CMD_COMPLETE, /* event must be event-complete */
  77                    "Error in response: not a cmd-complete event, "
  78                    "but 0x%02x!\n", resp.hci_hdr.evt);
  79
  80         FAILIF(resp.hci_hdr.plen < 4, /* plen >= 4 for EVT_CMD_COMPLETE */
  81                    "Error in response: plen is not >= 4, but 0x%02x!\n",
  82                    resp.hci_hdr.plen);
  83
  84         /* cmd-complete event: opcode */
  85         FAILIF(resp.cmd_complete.opcode != (uint16_t)opcode,
  86                    "Error in response: opcode is 0x%04x, not 0x%04x!",
  87                    resp.cmd_complete.opcode, opcode);
  88
  89         return resp.status == 0 ? 0 : -1;
  90 }
  91
  92 typedef struct {
  93         uint8_t uart_prefix;
  94         hci_command_hdr hci_hdr;
  95         uint32_t speed;
  96 } __attribute__((packed)) texas_speed_change_cmd_t;
  97
  98 static int texas_change_speed(int fd, uint32_t speed) {
  99
 100         return 0;
 101
 102         /* Send a speed-change request */
 103
 104         texas_speed_change_cmd_t cmd;
 105         int n;
 106
 107         cmd.uart_prefix = HCI_COMMAND_PKT;
 108         cmd.hci_hdr.opcode = 0xff36;
 109         cmd.hci_hdr.plen = sizeof(uint32_t);
 110         cmd.speed = speed;
 111
 112         fprintf(stdout, "Setting speed to %d\n", speed);
 113         n = write(fd, &cmd, sizeof(cmd));
 114         if (n < 0) {
 115                 perror("Failed to write speed-set command");
 116                 return -1;
 117         }
 118
 119         n = write(fd, &cmd, sizeof(cmd));
 120         if (n < 0) {
 121                 perror("Failed to write command.");
 122                 return -1;
 123         }
 124         if (n < (int)sizeof(cmd)) {
 125                 fprintf(stderr, "Wanted to write %d bytes, could only write %d. "
 126                                 "Stop\n", (int)sizeof(cmd), n);
 127                 return -1;
 128         }
 129
 130         /* Parse speed-change reply */
 131         if (read_command_complete(fd, 0xff36, 4) < 0) {
 132                 return -1;
 133         }
 134         fprintf(stdout, "Speed changed to %d.\n", speed);
 135 }
 136
 137 static int texas_load_firmware(int fd, const char *firmware) {
 138
 139         fprintf(stdout, "Opening firmware file: %s\n", firmware);
 140         int fw = open(firmware, O_RDONLY);
 141         FAILIF(fw < 0,
 142                    "Could not open firmware file %s: %s (%d).\n",
 143                    firmware, strerror(errno), errno);
 144
 145         fprintf(stdout, "Uploading firmware...\n");
 146         do {
 147                 int nr;
 148                 /* Read each command and wait for a response. */
 149                 unsigned char cmdp[1 + sizeof(hci_command_hdr)];
 150                 nr = read(fw, cmdp, sizeof(cmdp));
 151                 if (!nr)
 152                         break;
 153                 hci_command_hdr *cmd = (hci_command_hdr *)(cmdp + 1);
 154                 FAILIF(nr != sizeof(cmdp), "Could not read H4 + HCI header!\n");
 155                 FAILIF(*cmdp != HCI_COMMAND_PKT, "Command is not an H4 command packet!\n");
 156
 157                 unsigned char data[1024];
 158                 FAILIF(read(fw, data, cmd->plen) != cmd->plen,
 159                            "Could not read %d bytes of data for command with opcode %04x!\n",
 160                            cmd->plen,
 161                            cmd->opcode);
 162
 163                 {
 164 #if 0
 165                         fprintf(stdout, "\topcode 0x%04x (%d bytes of data).\n",
 166                                         cmd->opcode,
 167                                         cmd->plen);
 168 #endif
 169                         struct iovec iov_cmd[2];
 170                         iov_cmd[0].iov_base = cmdp;
 171                         iov_cmd[0].iov_len      = sizeof(cmdp);
 172                         iov_cmd[1].iov_base = data;
 173                         iov_cmd[1].iov_len      = cmd->plen;
 174                         int nw = writev(fd, iov_cmd, 2);
 175                         FAILIF(nw != sizeof(cmd) +      cmd->plen,
 176                                    "Could not send entire command (sent only %d bytes)!\n",
 177                                    nw);
 178                 }
 179
 180                 /* Wait for response */
 181                 if (read_command_complete(fd,
 182                                                                   cmd->opcode,
 183                                                                   cmd->plen) < 0) {
 184                         return -1;
 185                 }
 186
 187         } while(1);
 188         fprintf(stdout, "Firmware upload successful.\n");
 189
 190         close(fw);
 191         return 0;
 192 }
 193
 194 int texasalt_init(int fd, int speed, struct termios *ti)
 195 {
 196         struct timespec tm = {0, 50000};
 197         char cmd[4];
 198         unsigned char resp[100];                /* Response */
 199         int n;
 200
 201         memset(resp,'\0', 100);
 202
 203         /* It is possible to get software version with manufacturer specific
 204            HCI command HCI_VS_TI_Version_Number. But the only thing you get more
 205            is if this is point-to-point or point-to-multipoint module */
 206
 207         /* Get Manufacturer and LMP version */
 208         cmd[0] = HCI_COMMAND_PKT;
 209         cmd[1] = 0x01;
 210         cmd[2] = 0x10;
 211         cmd[3] = 0x00;
 212
 213         do {
 214                 n = write(fd, cmd, 4);
 215                 if (n < 0) {
 216                         perror("Failed to write init command (READ_LOCAL_VERSION_INFORMATION)");
 217                         return -1;
 218                 }
 219                 if (n < 4) {
 220                         fprintf(stderr, "Wanted to write 4 bytes, could only write %d. Stop\n", n);
 221                         return -1;
 222                 }
 223
 224                 /* Read reply. */
 225                 if (read_hci_event(fd, resp, 100) < 0) {
 226                         perror("Failed to read init response (READ_LOCAL_VERSION_INFORMATION)");
 227                         return -1;
 228                 }
 229
 230                 /* Wait for command complete event for our Opcode */
 231         } while (resp[4] != cmd[1] && resp[5] != cmd[2]);
 232
 233         /* Verify manufacturer */
 234         if ((resp[11] & 0xFF) != 0x0d)
 235                 fprintf(stderr,"WARNING : module's manufacturer is not Texas Instrument\n");
 236
 237         /* Print LMP version */
 238         fprintf(stderr, "Texas module LMP version : 0x%02x\n", resp[10] & 0xFF);
 239
 240         /* Print LMP subversion */
 241         {
 242                 unsigned short lmp_subv = resp[13] | (resp[14] << 8);
 243                 unsigned short brf_chip = (lmp_subv & 0x7c00) >> 10;
 244                 static const char *c_brf_chip[5] = {
 245                         "unknown",
 246                         "unknown",
 247                         "brf6100",
 248                         "brf6150",
 249                         "brf6300"
 250                 };
 251
 252                 fprintf(stderr, "Texas module LMP sub-version : 0x%04x\n", lmp_subv);
 253
 254                 fprintf(stderr,
 255                                 "\tinternal version freeze: %d\n"
 256                                 "\tsoftware version: %d\n"
 257                                 "\tchip: %s (%d)\n",
 258                                 lmp_subv & 0x7f,
 259                                 ((lmp_subv & 0x8000) >> (15-3)) | ((lmp_subv & 0x380) >> 7),
 260                                 ((brf_chip > 4) ? "unknown" : c_brf_chip[brf_chip]),
 261                                 brf_chip);
 262
 263                 char fw[100];
 264                 sprintf(fw, "/etc/firmware/%s.bin", c_brf_chip[brf_chip]);
 265                 texas_load_firmware(fd, fw);
 266
 267                 texas_change_speed(fd, speed);
 268         }
 269         nanosleep(&tm, NULL);
 270         return 0;
 271 }