usr.sbin/bluetooth/bthidcontrol/hid.c

   1 /*
   2  * hid.c
   3  *
   4  * Copyright (c) 2004 Maksim Yevmenkin <m_evmenkin@yahoo.com>
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  19  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  26  * SUCH DAMAGE.
  27  *
  28  * $Id: hid.c,v 1.3 2004/02/17 22:14:57 max Exp $
  29  * $FreeBSD$
  30  */
  31
  32 #include <sys/queue.h>
  33 #include <bluetooth.h>
  34 #include <dev/usb/usb.h>
  35 #include <dev/usb/usbhid.h>
  36 #include <stdio.h>
  37 #include <string.h>
  38 #include <usbhid.h>
  39 #include "bthid_config.h"
  40 #include "bthidcontrol.h"
  41
  42 extern uint32_t verbose;
  43
  44 static void hid_dump_descriptor (report_desc_t r);
  45 static void hid_dump_item       (char const *label, struct hid_item *h);
  46
  47 static int
  48 hid_dump(bdaddr_t *bdaddr, int argc, char **argv)
  49 {
  50         struct hid_device       *hd = NULL;
  51         int                      e = FAILED;
  52
  53         if (read_config_file() == 0) {
  54                 if ((hd = get_hid_device(bdaddr)) != NULL) {
  55                         hid_dump_descriptor(hd->desc);
  56                         e = OK;
  57                 }
  58
  59                 clean_config();
  60         }
  61
  62         return (e);
  63 }
  64
  65 static int
  66 hid_forget(bdaddr_t *bdaddr, int argc, char **argv)
  67 {
  68         struct hid_device       *hd = NULL;
  69         int                      e = FAILED;
  70
  71         if (read_config_file() == 0) {
  72                 if (read_hids_file() == 0) {
  73                         if ((hd = get_hid_device(bdaddr)) != NULL) {
  74                                 hd->new_device = 1;
  75                                 if (write_hids_file() == 0)
  76                                         e = OK;
  77                         }
  78                 }
  79
  80                 clean_config();
  81         }
  82
  83         return (e);
  84 }
  85
  86 static int
  87 hid_known(bdaddr_t *bdaddr, int argc, char **argv)
  88 {
  89         struct hid_device       *hd = NULL;
  90         struct hostent          *he = NULL;
  91         int                      e = FAILED;
  92
  93         if (read_config_file() == 0) {
  94                 if (read_hids_file() == 0) {
  95                         e = OK;
  96
  97                         for (hd = get_next_hid_device(hd);
  98                              hd != NULL;
  99                              hd = get_next_hid_device(hd)) {
 100                                 if (hd->new_device)
 101                                         continue;
 102
 103                                 he = bt_gethostbyaddr((char *) &hd->bdaddr,
 104                                                 sizeof(hd->bdaddr),
 105                                                 AF_BLUETOOTH);
 106
 107                                 fprintf(stdout,
 108 "%s %s\n",                              bt_ntoa(&hd->bdaddr, NULL),
 109                                         (he != NULL && he->h_name != NULL)?
 110                                                 he->h_name : "");
 111                         }
 112                 }
 113
 114                 clean_config();
 115         }
 116
 117         return (e);
 118 }
 119
 120 static void
 121 hid_dump_descriptor(report_desc_t r)
 122 {
 123         struct hid_data *d = NULL;
 124         struct hid_item  h;
 125
 126         for (d = hid_start_parse(r, ~0, -1); hid_get_item(d, &h); ) {
 127                 switch (h.kind) {
 128                 case hid_collection:
 129                         fprintf(stdout,
 130 "Collection page=%s usage=%s\n", hid_usage_page(HID_PAGE(h.usage)),
 131                                  hid_usage_in_page(h.usage));
 132                         break;
 133
 134                 case hid_endcollection:
 135                         fprintf(stdout, "End collection\n");
 136                         break;
 137
 138                 case hid_input:
 139                         hid_dump_item("Input  ", &h);
 140                         break;
 141
 142                 case hid_output:
 143                         hid_dump_item("Output ", &h);
 144                         break;
 145
 146                 case hid_feature:
 147                         hid_dump_item("Feature", &h);
 148                         break;
 149                 }
 150         }
 151
 152         hid_end_parse(d);
 153 }
 154
 155 static void
 156 hid_dump_item(char const *label, struct hid_item *h)
 157 {
 158         if ((h->flags & HIO_CONST) && !verbose)
 159                 return;
 160
 161         fprintf(stdout,
 162 "%s id=%u size=%u count=%u page=%s usage=%s%s%s%s%s%s%s%s%s%s",
 163                 label, (uint8_t) h->report_ID, h->report_size, h->report_count,
 164                 hid_usage_page(HID_PAGE(h->usage)),
 165                 hid_usage_in_page(h->usage),
 166                 h->flags & HIO_CONST ? " Const" : "",
 167                 h->flags & HIO_VARIABLE ? " Variable" : "",
 168                 h->flags & HIO_RELATIVE ? " Relative" : "",
 169                 h->flags & HIO_WRAP ? " Wrap" : "",
 170                 h->flags & HIO_NONLINEAR ? " NonLinear" : "",
 171                 h->flags & HIO_NOPREF ? " NoPref" : "",
 172                 h->flags & HIO_NULLSTATE ? " NullState" : "",
 173                 h->flags & HIO_VOLATILE ? " Volatile" : "",
 174                 h->flags & HIO_BUFBYTES ? " BufBytes" : "");
 175
 176         fprintf(stdout,
 177 ", logical range %d..%d",
 178                 h->logical_minimum, h->logical_maximum);
 179
 180         if (h->physical_minimum != h->physical_maximum)
 181                 fprintf(stdout,
 182 ", physical range %d..%d",
 183                         h->physical_minimum, h->physical_maximum);
 184
 185         if (h->unit)
 186                 fprintf(stdout,
 187 ", unit=0x%02x exp=%d", h->unit, h->unit_exponent);
 188
 189         fprintf(stdout, "\n");
 190 }
 191
 192 struct bthid_command    hid_commands[] = {
 193 {
 194 "Dump",
 195 "Dump HID descriptor for the specified device in human readable form. The\n" \
 196 "device must have an entry in the Bluetooth HID daemon configuration file.\n",
 197 hid_dump
 198 },
 199 {
 200 "Known",
 201 "List all known to the Bluetooth HID daemon devices.\n",
 202 hid_known
 203 },
 204 {
 205 "Forget",
 206 "Forget (mark as new) specified HID device. This command is useful when it\n" \
 207 "is required to remove device from the known HIDs file. This should be done\n" \
 208 "when reset button was pressed on the device or the battery was changed. The\n"\
 209 "Bluetooth HID daemon should be restarted.\n",
 210 hid_forget
 211 },
 212 { NULL, NULL, NULL }
 213 };
 214