1 /*- 2 * hid.c 3 * 4 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 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 * $FreeBSD$ 32 */ 33 34 #include <sys/queue.h> 35 #define L2CAP_SOCKET_CHECKED 36 #include <bluetooth.h> 37 #include <dev/usb/usb.h> 38 #include <dev/usb/usbhid.h> 39 #include <stdio.h> 40 #include <string.h> 41 #include <usbhid.h> 42 #include "bthid_config.h" 43 #include "bthidcontrol.h" 44 45 extern uint32_t verbose; 46 47 static void hid_dump_descriptor (report_desc_t r); 48 static void hid_dump_item (char const *label, struct hid_item *h); 49 50 static int 51 hid_dump(bdaddr_t *bdaddr, int argc, char **argv) 52 { 53 struct hid_device *hd = NULL; 54 int e = FAILED; 55 56 if (read_config_file() == 0) { 57 if ((hd = get_hid_device(bdaddr)) != NULL) { 58 hid_dump_descriptor(hd->desc); 59 e = OK; 60 } 61 62 clean_config(); 63 } 64 65 return (e); 66 } 67 68 static int 69 hid_forget(bdaddr_t *bdaddr, int argc, char **argv) 70 { 71 struct hid_device *hd = NULL; 72 int e = FAILED; 73 74 if (read_config_file() == 0) { 75 if (read_hids_file() == 0) { 76 if ((hd = get_hid_device(bdaddr)) != NULL) { 77 hd->new_device = 1; 78 if (write_hids_file() == 0) 79 e = OK; 80 } 81 } 82 83 clean_config(); 84 } 85 86 return (e); 87 } 88 89 static int 90 hid_known(bdaddr_t *bdaddr, int argc, char **argv) 91 { 92 struct hid_device *hd = NULL; 93 struct hostent *he = NULL; 94 int e = FAILED; 95 96 if (read_config_file() == 0) { 97 if (read_hids_file() == 0) { 98 e = OK; 99 100 for (hd = get_next_hid_device(hd); 101 hd != NULL; 102 hd = get_next_hid_device(hd)) { 103 if (hd->new_device) 104 continue; 105 106 he = bt_gethostbyaddr((char *) &hd->bdaddr, 107 sizeof(hd->bdaddr), 108 AF_BLUETOOTH); 109 110 fprintf(stdout, 111 "%s %s\n", bt_ntoa(&hd->bdaddr, NULL), 112 (he != NULL && he->h_name != NULL)? 113 he->h_name : ""); 114 } 115 } 116 117 clean_config(); 118 } 119 120 return (e); 121 } 122 123 static void 124 hid_dump_descriptor(report_desc_t r) 125 { 126 struct hid_data *d = NULL; 127 struct hid_item h; 128 129 for (d = hid_start_parse(r, ~0, -1); hid_get_item(d, &h); ) { 130 switch (h.kind) { 131 case hid_collection: 132 fprintf(stdout, 133 "Collection page=%s usage=%s\n", hid_usage_page(HID_PAGE(h.usage)), 134 hid_usage_in_page(h.usage)); 135 break; 136 137 case hid_endcollection: 138 fprintf(stdout, "End collection\n"); 139 break; 140 141 case hid_input: 142 hid_dump_item("Input ", &h); 143 break; 144 145 case hid_output: 146 hid_dump_item("Output ", &h); 147 break; 148 149 case hid_feature: 150 hid_dump_item("Feature", &h); 151 break; 152 } 153 } 154 155 hid_end_parse(d); 156 } 157 158 static void 159 hid_dump_item(char const *label, struct hid_item *h) 160 { 161 if ((h->flags & HIO_CONST) && !verbose) 162 return; 163 164 fprintf(stdout, 165 "%s id=%u size=%u count=%u page=%s usage=%s%s%s%s%s%s%s%s%s%s", 166 label, (uint8_t) h->report_ID, h->report_size, h->report_count, 167 hid_usage_page(HID_PAGE(h->usage)), 168 hid_usage_in_page(h->usage), 169 h->flags & HIO_CONST ? " Const" : "", 170 h->flags & HIO_VARIABLE ? " Variable" : "", 171 h->flags & HIO_RELATIVE ? " Relative" : "", 172 h->flags & HIO_WRAP ? " Wrap" : "", 173 h->flags & HIO_NONLINEAR ? " NonLinear" : "", 174 h->flags & HIO_NOPREF ? " NoPref" : "", 175 h->flags & HIO_NULLSTATE ? " NullState" : "", 176 h->flags & HIO_VOLATILE ? " Volatile" : "", 177 h->flags & HIO_BUFBYTES ? " BufBytes" : ""); 178 179 fprintf(stdout, 180 ", logical range %d..%d", 181 h->logical_minimum, h->logical_maximum); 182 183 if (h->physical_minimum != h->physical_maximum) 184 fprintf(stdout, 185 ", physical range %d..%d", 186 h->physical_minimum, h->physical_maximum); 187 188 if (h->unit) 189 fprintf(stdout, 190 ", unit=0x%02x exp=%d", h->unit, h->unit_exponent); 191 192 fprintf(stdout, "\n"); 193 } 194 195 struct bthid_command hid_commands[] = { 196 { 197 "Dump", 198 "Dump HID descriptor for the specified device in human readable form. The\n" \ 199 "device must have an entry in the Bluetooth HID daemon configuration file.\n", 200 hid_dump 201 }, 202 { 203 "Known", 204 "List all known to the Bluetooth HID daemon devices.\n", 205 hid_known 206 }, 207 { 208 "Forget", 209 "Forget (mark as new) specified HID device. This command is useful when it\n" \ 210 "is required to remove device from the known HIDs file. This should be done\n" \ 211 "when reset button was pressed on the device or the battery was changed. The\n"\ 212 "Bluetooth HID daemon should be restarted.\n", 213 hid_forget 214 }, 215 { NULL, NULL, NULL } 216 }; 217 218