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