1 /*- 2 * hid.c 3 * 4 * SPDX-License-Identifier: BSD-2-Clause 5 * 6 * Copyright (c) 2004 Maksim Yevmenkin <m_evmenkin@yahoo.com> 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 * 30 * $Id: hid.c,v 1.3 2004/02/17 22:14:57 max Exp $ 31 */ 32 33 #include <sys/queue.h> 34 #define L2CAP_SOCKET_CHECKED 35 #include <bluetooth.h> 36 #include <dev/usb/usb.h> 37 #include <dev/usb/usbhid.h> 38 #include <stdio.h> 39 #include <string.h> 40 #include <usbhid.h> 41 #include "bthid_config.h" 42 #include "bthidcontrol.h" 43 44 extern uint32_t verbose; 45 46 static void hid_dump_descriptor (report_desc_t r); 47 static void hid_dump_item (char const *label, struct hid_item *h); 48 49 static int 50 hid_dump(bdaddr_t *bdaddr, int argc, char **argv) 51 { 52 struct hid_device *hd = NULL; 53 int e = FAILED; 54 55 if (read_config_file() == 0) { 56 if ((hd = get_hid_device(bdaddr)) != NULL) { 57 hid_dump_descriptor(hd->desc); 58 e = OK; 59 } 60 61 clean_config(); 62 } 63 64 return (e); 65 } 66 67 static int 68 hid_forget(bdaddr_t *bdaddr, int argc, char **argv) 69 { 70 struct hid_device *hd = NULL; 71 int e = FAILED; 72 73 if (read_config_file() == 0) { 74 if (read_hids_file() == 0) { 75 if ((hd = get_hid_device(bdaddr)) != NULL) { 76 hd->new_device = 1; 77 if (write_hids_file() == 0) 78 e = OK; 79 } 80 } 81 82 clean_config(); 83 } 84 85 return (e); 86 } 87 88 static int 89 hid_known(bdaddr_t *bdaddr, int argc, char **argv) 90 { 91 struct hid_device *hd = NULL; 92 struct hostent *he = NULL; 93 int e = FAILED; 94 95 if (read_config_file() == 0) { 96 if (read_hids_file() == 0) { 97 e = OK; 98 99 for (hd = get_next_hid_device(hd); 100 hd != NULL; 101 hd = get_next_hid_device(hd)) { 102 if (hd->new_device) 103 continue; 104 105 he = bt_gethostbyaddr((char *) &hd->bdaddr, 106 sizeof(hd->bdaddr), 107 AF_BLUETOOTH); 108 109 fprintf(stdout, 110 "%s %s\n", bt_ntoa(&hd->bdaddr, NULL), 111 (he != NULL && he->h_name != NULL)? 112 he->h_name : ""); 113 } 114 } 115 116 clean_config(); 117 } 118 119 return (e); 120 } 121 122 static void 123 hid_dump_descriptor(report_desc_t r) 124 { 125 struct hid_data *d = NULL; 126 struct hid_item h; 127 128 for (d = hid_start_parse(r, ~0, -1); hid_get_item(d, &h); ) { 129 switch (h.kind) { 130 case hid_collection: 131 fprintf(stdout, 132 "Collection page=%s usage=%s\n", hid_usage_page(HID_PAGE(h.usage)), 133 hid_usage_in_page(h.usage)); 134 break; 135 136 case hid_endcollection: 137 fprintf(stdout, "End collection\n"); 138 break; 139 140 case hid_input: 141 hid_dump_item("Input ", &h); 142 break; 143 144 case hid_output: 145 hid_dump_item("Output ", &h); 146 break; 147 148 case hid_feature: 149 hid_dump_item("Feature", &h); 150 break; 151 } 152 } 153 154 hid_end_parse(d); 155 } 156 157 static void 158 hid_dump_item(char const *label, struct hid_item *h) 159 { 160 if ((h->flags & HIO_CONST) && !verbose) 161 return; 162 163 fprintf(stdout, 164 "%s id=%u size=%u count=%u page=%s usage=%s%s%s%s%s%s%s%s%s%s", 165 label, (uint8_t) h->report_ID, h->report_size, h->report_count, 166 hid_usage_page(HID_PAGE(h->usage)), 167 hid_usage_in_page(h->usage), 168 h->flags & HIO_CONST ? " Const" : "", 169 h->flags & HIO_VARIABLE ? " Variable" : "", 170 h->flags & HIO_RELATIVE ? " Relative" : "", 171 h->flags & HIO_WRAP ? " Wrap" : "", 172 h->flags & HIO_NONLINEAR ? " NonLinear" : "", 173 h->flags & HIO_NOPREF ? " NoPref" : "", 174 h->flags & HIO_NULLSTATE ? " NullState" : "", 175 h->flags & HIO_VOLATILE ? " Volatile" : "", 176 h->flags & HIO_BUFBYTES ? " BufBytes" : ""); 177 178 fprintf(stdout, 179 ", logical range %d..%d", 180 h->logical_minimum, h->logical_maximum); 181 182 if (h->physical_minimum != h->physical_maximum) 183 fprintf(stdout, 184 ", physical range %d..%d", 185 h->physical_minimum, h->physical_maximum); 186 187 if (h->unit) 188 fprintf(stdout, 189 ", unit=0x%02x exp=%d", h->unit, h->unit_exponent); 190 191 fprintf(stdout, "\n"); 192 } 193 194 struct bthid_command hid_commands[] = { 195 { 196 "Dump", 197 "Dump HID descriptor for the specified device in human readable form. The\n" \ 198 "device must have an entry in the Bluetooth HID daemon configuration file.\n", 199 hid_dump 200 }, 201 { 202 "Known", 203 "List all known to the Bluetooth HID daemon devices.\n", 204 hid_known 205 }, 206 { 207 "Forget", 208 "Forget (mark as new) specified HID device. This command is useful when it\n" \ 209 "is required to remove device from the known HIDs file. This should be done\n" \ 210 "when reset button was pressed on the device or the battery was changed. The\n"\ 211 "Bluetooth HID daemon should be restarted.\n", 212 hid_forget 213 }, 214 { NULL, NULL, NULL } 215 }; 216 217