tools/hciattach_tialt.c

   1 /*
   2  *
   3  *  BlueZ - Bluetooth protocol stack for Linux
   4  *
   5  *  Copyright (C) 2005-2010  Marcel Holtmann <marcel@holtmann.org>
   6  *
   7  *
   8  *  This program is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License as published by
  10  *  the Free Software Foundation; either version 2 of the License, or
  11  *  (at your option) any later version.
  12  *
  13  *  This program is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *  GNU General Public License for more details.
  17  *
  18  *  You should have received a copy of the GNU General Public License
  19  *  along with this program; if not, write to the Free Software
  20  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  21  *
  22  */
  23
  24 #ifdef HAVE_CONFIG_H
  25 #include <config.h>
  26 #endif
  27
  28 #include <stdio.h>
  29 #include <errno.h>
  30 #include <fcntl.h>
  31 #include <unistd.h>
  32 #include <stdlib.h>
  33 #include <string.h>
  34 #include <signal.h>
  35 #include <syslog.h>
  36 #include <termios.h>
  37 #include <time.h>
  38 #include <sys/time.h>
  39 #include <sys/poll.h>
  40 #include <sys/param.h>
  41 #include <sys/ioctl.h>
  42 #include <sys/socket.h>
  43 #include <sys/uio.h>
  44
  45 #include <bluetooth/bluetooth.h>
  46 #include <bluetooth/hci.h>
  47 #include <bluetooth/hci_lib.h>
  48
  49 #include "hciattach.h"
  50
  51 #define FAILIF(x, args...) do {   \
  52         if (x) {                                          \
  53                 fprintf(stderr, ##args);  \
  54                 return -1;                                \
  55         }                                                         \
  56 } while(0)
  57
  58 typedef struct {
  59         uint8_t uart_prefix;
  60         hci_event_hdr hci_hdr;
  61         evt_cmd_complete cmd_complete;
  62         uint8_t status;
  63         uint8_t data[16];
  64 } __attribute__((packed)) command_complete_t;
  65
  66 static int read_command_complete(int fd, unsigned short opcode, unsigned char len) {
  67         command_complete_t resp;
  68         /* Read reply. */
  69         FAILIF(read_hci_event(fd, (unsigned char *)&resp, sizeof(resp)) < 0,
  70                    "Failed to read response");
  71
  72         /* Parse speed-change reply */
  73         FAILIF(resp.uart_prefix != HCI_EVENT_PKT,
  74                    "Error in response: not an event packet, but 0x%02x!\n",
  75                    resp.uart_prefix);
  76
  77         FAILIF(resp.hci_hdr.evt != EVT_CMD_COMPLETE, /* event must be event-complete */
  78                    "Error in response: not a cmd-complete event, "
  79                    "but 0x%02x!\n", resp.hci_hdr.evt);
  80
  81         FAILIF(resp.hci_hdr.plen < 4, /* plen >= 4 for EVT_CMD_COMPLETE */
  82                    "Error in response: plen is not >= 4, but 0x%02x!\n",
  83                    resp.hci_hdr.plen);
  84
  85         /* cmd-complete event: opcode */
  86         FAILIF(resp.cmd_complete.opcode != (uint16_t)opcode,
  87                    "Error in response: opcode is 0x%04x, not 0x%04x!",
  88                    resp.cmd_complete.opcode, opcode);
  89
  90         return resp.status == 0 ? 0 : -1;
  91 }
  92
  93 typedef struct {
  94         uint8_t uart_prefix;
  95         hci_command_hdr hci_hdr;
  96         uint32_t speed;
  97 } __attribute__((packed)) texas_speed_change_cmd_t;
  98
  99 static int texas_change_speed(int fd, uint32_t speed)
 100 {
 101         return 0;
 102 }
 103
 104 static int texas_load_firmware(int fd, const char *firmware) {
 105
 106         int fw = open(firmware, O_RDONLY);
 107
 108         fprintf(stdout, "Opening firmware file: %s\n", firmware);
 109
 110         FAILIF(fw < 0,
 111                    "Could not open firmware file %s: %s (%d).\n",
 112                    firmware, strerror(errno), errno);
 113
 114         fprintf(stdout, "Uploading firmware...\n");
 115         do {
 116                 /* Read each command and wait for a response. */
 117                 unsigned char data[1024];
 118                 unsigned char cmdp[1 + sizeof(hci_command_hdr)];
 119                 hci_command_hdr *cmd = (hci_command_hdr *)(cmdp + 1);
 120                 int nr;
 121                 nr = read(fw, cmdp, sizeof(cmdp));
 122                 if (!nr)
 123                         break;
 124                 FAILIF(nr != sizeof(cmdp), "Could not read H4 + HCI header!\n");
 125                 FAILIF(*cmdp != HCI_COMMAND_PKT, "Command is not an H4 command packet!\n");
 126
 127                 FAILIF(read(fw, data, cmd->plen) != cmd->plen,
 128                            "Could not read %d bytes of data for command with opcode %04x!\n",
 129                            cmd->plen,
 130                            cmd->opcode);
 131
 132                 {
 133                         int nw;
 134 #if 0
 135                         fprintf(stdout, "\topcode 0x%04x (%d bytes of data).\n",
 136                                         cmd->opcode,
 137                                         cmd->plen);
 138 #endif
 139                         struct iovec iov_cmd[2];
 140                         iov_cmd[0].iov_base = cmdp;
 141                         iov_cmd[0].iov_len      = sizeof(cmdp);
 142                         iov_cmd[1].iov_base = data;
 143                         iov_cmd[1].iov_len      = cmd->plen;
 144                         nw = writev(fd, iov_cmd, 2);
 145                         FAILIF(nw != (int) sizeof(cmd) +        cmd->plen,
 146                                    "Could not send entire command (sent only %d bytes)!\n",
 147                                    nw);
 148                 }
 149
 150                 /* Wait for response */
 151                 if (read_command_complete(fd,
 152                                                                   cmd->opcode,
 153                                                                   cmd->plen) < 0) {
 154                         return -1;
 155                 }
 156
 157         } while(1);
 158         fprintf(stdout, "Firmware upload successful.\n");
 159
 160         close(fw);
 161         return 0;
 162 }
 163
 164 int texasalt_init(int fd, int speed, struct termios *ti)
 165 {
 166         struct timespec tm = {0, 50000};
 167         char cmd[4];
 168         unsigned char resp[100];                /* Response */
 169         int n;
 170
 171         memset(resp,'\0', 100);
 172
 173         /* It is possible to get software version with manufacturer specific
 174            HCI command HCI_VS_TI_Version_Number. But the only thing you get more
 175            is if this is point-to-point or point-to-multipoint module */
 176
 177         /* Get Manufacturer and LMP version */
 178         cmd[0] = HCI_COMMAND_PKT;
 179         cmd[1] = 0x01;
 180         cmd[2] = 0x10;
 181         cmd[3] = 0x00;
 182
 183         do {
 184                 n = write(fd, cmd, 4);
 185                 if (n < 0) {
 186                         perror("Failed to write init command (READ_LOCAL_VERSION_INFORMATION)");
 187                         return -1;
 188                 }
 189                 if (n < 4) {
 190                         fprintf(stderr, "Wanted to write 4 bytes, could only write %d. Stop\n", n);
 191                         return -1;
 192                 }
 193
 194                 /* Read reply. */
 195                 if (read_hci_event(fd, resp, 100) < 0) {
 196                         perror("Failed to read init response (READ_LOCAL_VERSION_INFORMATION)");
 197                         return -1;
 198                 }
 199
 200                 /* Wait for command complete event for our Opcode */
 201         } while (resp[4] != cmd[1] && resp[5] != cmd[2]);
 202
 203         /* Verify manufacturer */
 204         if ((resp[11] & 0xFF) != 0x0d)
 205                 fprintf(stderr,"WARNING : module's manufacturer is not Texas Instrument\n");
 206
 207         /* Print LMP version */
 208         fprintf(stderr, "Texas module LMP version : 0x%02x\n", resp[10] & 0xFF);
 209
 210         /* Print LMP subversion */
 211         {
 212                 unsigned short lmp_subv = resp[13] | (resp[14] << 8);
 213                 unsigned short brf_chip = (lmp_subv & 0x7c00) >> 10;
 214                 static const char *c_brf_chip[8] = {
 215                         "unknown",
 216                         "unknown",
 217                         "brf6100",
 218                         "brf6150",
 219                         "brf6300",
 220                         "brf6350",
 221                         "unknown",
 222                         "wl1271"
 223                 };
 224                 char fw[100];
 225
 226                 fprintf(stderr, "Texas module LMP sub-version : 0x%04x\n", lmp_subv);
 227
 228                 fprintf(stderr,
 229                                 "\tinternal version freeze: %d\n"
 230                                 "\tsoftware version: %d\n"
 231                                 "\tchip: %s (%d)\n",
 232                                 lmp_subv & 0x7f,
 233                                 ((lmp_subv & 0x8000) >> (15-3)) | ((lmp_subv & 0x380) >> 7),
 234                                 ((brf_chip > 7) ? "unknown" : c_brf_chip[brf_chip]),
 235                                 brf_chip);
 236
 237                 sprintf(fw, "/etc/firmware/%s.bin", c_brf_chip[brf_chip]);
 238                 texas_load_firmware(fd, fw);
 239
 240                 texas_change_speed(fd, speed);
 241         }
 242         nanosleep(&tm, NULL);
 243         return 0;
 244 }