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 static void hid_dump_descriptor (report_desc_t r);
  43 static void hid_dump_item       (char const *label, struct hid_item *h);
  44
  45 static int
  46 hid_dump(bdaddr_t *bdaddr, int argc, char **argv)
  47 {
  48         struct hid_device       *hd = NULL;
  49         int                      e = FAILED;
  50
  51         if (read_config_file() == 0) {
  52                 if ((hd = get_hid_device(bdaddr)) != NULL) {
  53                         hid_dump_descriptor(hd->desc);
  54                         e = OK;
  55                 }
  56
  57                 clean_config();
  58         }
  59
  60         return (e);
  61 }
  62
  63 static int
  64 hid_forget(bdaddr_t *bdaddr, int argc, char **argv)
  65 {
  66         struct hid_device       *hd = NULL;
  67         int                      e = FAILED;
  68
  69         if (read_config_file() == 0) {
  70                 if (read_hids_file() == 0) {
  71                         if ((hd = get_hid_device(bdaddr)) != NULL) {
  72                                 hd->new_device = 1;
  73                                 if (write_hids_file() == 0)
  74                                         e = OK;
  75                         }
  76                 }
  77
  78                 clean_config();
  79         }
  80
  81         return (e);
  82 }
  83
  84 static int
  85 hid_known(bdaddr_t *bdaddr, int argc, char **argv)
  86 {
  87         struct hid_device       *hd = NULL;
  88         struct hostent          *he = NULL;
  89         int                      e = FAILED;
  90
  91         if (read_config_file() == 0) {
  92                 if (read_hids_file() == 0) {
  93                         e = OK;
  94
  95                         for (hd = get_next_hid_device(hd);
  96                              hd != NULL;
  97                              hd = get_next_hid_device(hd)) {
  98                                 if (hd->new_device)
  99                                         continue;
 100
 101                                 he = bt_gethostbyaddr((char *) &hd->bdaddr,
 102                                                 sizeof(hd->bdaddr),
 103                                                 AF_BLUETOOTH);
 104
 105                                 fprintf(stdout,
 106 "%s %s\n",                              bt_ntoa(&hd->bdaddr, NULL),
 107                                         (he != NULL && he->h_name != NULL)?
 108                                                 he->h_name : "");
 109                         }
 110                 }
 111
 112                 clean_config();
 113         }
 114
 115         return (e);
 116 }
 117
 118 static void
 119 hid_dump_descriptor(report_desc_t r)
 120 {
 121         struct hid_data *d = NULL;
 122         struct hid_item  h;
 123
 124         for (d = hid_start_parse(r, ~0, -1); hid_get_item(d, &h); ) {
 125                 switch (h.kind) {
 126                 case hid_collection:
 127                         fprintf(stdout,
 128 "Collection page=%s usage=%s\n", hid_usage_page(HID_PAGE(h.usage)),
 129                                  hid_usage_in_page(h.usage));
 130                         break;
 131
 132                 case hid_endcollection:
 133                         fprintf(stdout, "End collection\n");
 134                         break;
 135
 136                 case hid_input:
 137                         hid_dump_item("Input  ", &h);
 138                         break;
 139
 140                 case hid_output:
 141                         hid_dump_item("Output ", &h);
 142                         break;
 143
 144                 case hid_feature:
 145                         hid_dump_item("Feature", &h);
 146                         break;
 147                 }
 148         }
 149
 150         hid_end_parse(d);
 151 }
 152
 153 static void
 154 hid_dump_item(char const *label, struct hid_item *h)
 155 {
 156         fprintf(stdout,
 157 "%s id=%u size=%u count=%u page=%s usage=%s%s%s%s%s%s%s%s%s%s",
 158                 label, (uint8_t) h->report_ID, h->report_size, h->report_count,
 159                 hid_usage_page(HID_PAGE(h->usage)),
 160                 hid_usage_in_page(h->usage),
 161                 h->flags & HIO_CONST ? " Const" : "",
 162                 h->flags & HIO_VARIABLE ? " Variable" : "",
 163                 h->flags & HIO_RELATIVE ? " Relative" : "",
 164                 h->flags & HIO_WRAP ? " Wrap" : "",
 165                 h->flags & HIO_NONLINEAR ? " NonLinear" : "",
 166                 h->flags & HIO_NOPREF ? " NoPref" : "",
 167                 h->flags & HIO_NULLSTATE ? " NullState" : "",
 168                 h->flags & HIO_VOLATILE ? " Volatile" : "",
 169                 h->flags & HIO_BUFBYTES ? " BufBytes" : "");
 170
 171         fprintf(stdout,
 172 ", logical range %d..%d",
 173                 h->logical_minimum, h->logical_maximum);
 174
 175         if (h->physical_minimum != h->physical_maximum)
 176                 fprintf(stdout,
 177 ", physical range %d..%d",
 178                         h->physical_minimum, h->physical_maximum);
 179
 180         if (h->unit)
 181                 fprintf(stdout,
 182 ", unit=0x%02x exp=%d", h->unit, h->unit_exponent);
 183
 184         fprintf(stdout, "\n");
 185 }
 186
 187 struct bthid_command    hid_commands[] = {
 188 {
 189 "Dump",
 190 "Dump HID descriptor for the specified device in human readable form. The\n" \
 191 "device must have an entry in the Bluetooth HID daemon configuration file.\n",
 192 hid_dump
 193 },
 194 {
 195 "Known",
 196 "List all known to the Bluetooth HID daemon devices.\n",
 197 hid_known
 198 },
 199 {
 200 "Forget",
 201 "Forget (mark as new) specified HID device. This command is useful when it\n" \
 202 "is required to remove device from the known HIDs file. This should be done\n" \
 203 "when reset button was pressed on the device or the battery was changed. The\n"\
 204 "Bluetooth HID daemon should be restarted.\n",
 205 hid_forget
 206 },
 207 { NULL, NULL, NULL }
 208 };
 209