1 /* 2 * hid.c 3 */ 4 5 /*- 6 * Copyright (c) 2006 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 1.5 2006/09/07 21:06:53 max Exp $ 31 * $FreeBSD$ 32 */ 33 34 #include <sys/consio.h> 35 #include <sys/mouse.h> 36 #include <sys/queue.h> 37 #include <assert.h> 38 #include <bluetooth.h> 39 #include <dev/usb/usb.h> 40 #include <dev/usb/usbhid.h> 41 #include <errno.h> 42 #include <stdio.h> 43 #include <string.h> 44 #include <syslog.h> 45 #include <unistd.h> 46 #include <usbhid.h> 47 #include "bthid_config.h" 48 #include "bthidd.h" 49 #include "kbd.h" 50 51 #undef min 52 #define min(x, y) (((x) < (y))? (x) : (y)) 53 54 #undef ASIZE 55 #define ASIZE(a) (sizeof(a)/sizeof(a[0])) 56 57 /* 58 * Process data from control channel 59 */ 60 61 int32_t 62 hid_control(bthid_session_p s, uint8_t *data, int32_t len) 63 { 64 assert(s != NULL); 65 assert(data != NULL); 66 assert(len > 0); 67 68 switch (data[0] >> 4) { 69 case 0: /* Handshake (response to command) */ 70 if (data[0] & 0xf) 71 syslog(LOG_ERR, "Got handshake message with error " \ 72 "response 0x%x from %s", 73 data[0], bt_ntoa(&s->bdaddr, NULL)); 74 break; 75 76 case 1: /* HID Control */ 77 switch (data[0] & 0xf) { 78 case 0: /* NOP */ 79 break; 80 81 case 1: /* Hard reset */ 82 case 2: /* Soft reset */ 83 syslog(LOG_WARNING, "Device %s requested %s reset", 84 bt_ntoa(&s->bdaddr, NULL), 85 ((data[0] & 0xf) == 1)? "hard" : "soft"); 86 break; 87 88 case 3: /* Suspend */ 89 syslog(LOG_NOTICE, "Device %s requested Suspend", 90 bt_ntoa(&s->bdaddr, NULL)); 91 break; 92 93 case 4: /* Exit suspend */ 94 syslog(LOG_NOTICE, "Device %s requested Exit Suspend", 95 bt_ntoa(&s->bdaddr, NULL)); 96 break; 97 98 case 5: /* Virtual cable unplug */ 99 syslog(LOG_NOTICE, "Device %s unplugged virtual cable", 100 bt_ntoa(&s->bdaddr, NULL)); 101 session_close(s); 102 break; 103 104 default: 105 syslog(LOG_WARNING, "Device %s sent unknown " \ 106 "HID_Control message 0x%x", 107 bt_ntoa(&s->bdaddr, NULL), data[0]); 108 break; 109 } 110 break; 111 112 default: 113 syslog(LOG_WARNING, "Got unexpected message 0x%x on Control " \ 114 "channel from %s", data[0], bt_ntoa(&s->bdaddr, NULL)); 115 break; 116 } 117 118 return (0); 119 } 120 121 /* 122 * Process data from the interrupt channel 123 */ 124 125 int32_t 126 hid_interrupt(bthid_session_p s, uint8_t *data, int32_t len) 127 { 128 hid_device_p hid_device; 129 hid_data_t d; 130 hid_item_t h; 131 int32_t report_id, usage, page, val, 132 mouse_x, mouse_y, mouse_z, mouse_butt, 133 mevents, kevents; 134 135 assert(s != NULL); 136 assert(s->srv != NULL); 137 assert(data != NULL); 138 139 if (len < 3) { 140 syslog(LOG_ERR, "Got short message (%d bytes) on Interrupt " \ 141 "channel from %s", len, bt_ntoa(&s->bdaddr, NULL)); 142 return (-1); 143 } 144 145 if (data[0] != 0xa1) { 146 syslog(LOG_ERR, "Got unexpected message 0x%x on " \ 147 "Interrupt channel from %s", 148 data[0], bt_ntoa(&s->bdaddr, NULL)); 149 return (-1); 150 } 151 152 report_id = data[1]; 153 data += 2; 154 len -= 2; 155 156 hid_device = get_hid_device(&s->bdaddr); 157 assert(hid_device != NULL); 158 159 mouse_x = mouse_y = mouse_z = mouse_butt = mevents = kevents = 0; 160 161 for (d = hid_start_parse(hid_device->desc, 1 << hid_input, -1); 162 hid_get_item(d, &h) > 0; ) { 163 if ((h.flags & HIO_CONST) || (h.report_ID != report_id)) 164 continue; 165 166 page = HID_PAGE(h.usage); 167 usage = HID_USAGE(h.usage); 168 val = hid_get_data(data, &h); 169 170 switch (page) { 171 case HUP_GENERIC_DESKTOP: 172 switch (usage) { 173 case HUG_X: 174 mouse_x = val; 175 mevents ++; 176 break; 177 178 case HUG_Y: 179 mouse_y = val; 180 mevents ++; 181 break; 182 183 case HUG_WHEEL: 184 mouse_z = -val; 185 mevents ++; 186 break; 187 188 case HUG_SYSTEM_SLEEP: 189 if (val) 190 syslog(LOG_NOTICE, "Sleep button pressed"); 191 break; 192 } 193 break; 194 195 case HUP_KEYBOARD: 196 kevents ++; 197 198 if (h.flags & HIO_VARIABLE) { 199 if (val && usage < kbd_maxkey()) 200 bit_set(s->keys1, usage); 201 } else { 202 if (val && val < kbd_maxkey()) 203 bit_set(s->keys1, val); 204 205 data ++; 206 len --; 207 208 len = min(len, h.report_size); 209 while (len > 0) { 210 val = hid_get_data(data, &h); 211 if (val && val < kbd_maxkey()) 212 bit_set(s->keys1, val); 213 214 data ++; 215 len --; 216 } 217 } 218 break; 219 220 case HUP_BUTTON: 221 if (usage != 0) { 222 if (usage == 2) 223 usage = 3; 224 else if (usage == 3) 225 usage = 2; 226 227 mouse_butt |= (val << (usage - 1)); 228 mevents ++; 229 } 230 break; 231 232 case HUP_CONSUMER: 233 if (!val) 234 break; 235 236 switch (usage) { 237 case 0xb5: /* Scan Next Track */ 238 val = 0x19; 239 break; 240 241 case 0xb6: /* Scan Previous Track */ 242 val = 0x10; 243 break; 244 245 case 0xb7: /* Stop */ 246 val = 0x24; 247 break; 248 249 case 0xcd: /* Play/Pause */ 250 val = 0x22; 251 break; 252 253 case 0xe2: /* Mute */ 254 val = 0x20; 255 break; 256 257 case 0xe9: /* Volume Up */ 258 val = 0x30; 259 break; 260 261 case 0xea: /* Volume Down */ 262 val = 0x2E; 263 break; 264 265 case 0x183: /* Media Select */ 266 val = 0x6D; 267 break; 268 269 case 0x018a: /* Mail */ 270 val = 0x6C; 271 break; 272 273 case 0x192: /* Calculator */ 274 val = 0x21; 275 break; 276 277 case 0x194: /* My Computer */ 278 val = 0x6B; 279 break; 280 281 case 0x221: /* WWW Search */ 282 val = 0x65; 283 break; 284 285 case 0x223: /* WWW Home */ 286 val = 0x32; 287 break; 288 289 case 0x224: /* WWW Back */ 290 val = 0x6A; 291 break; 292 293 case 0x225: /* WWW Forward */ 294 val = 0x69; 295 break; 296 297 case 0x226: /* WWW Stop */ 298 val = 0x68; 299 break; 300 301 case 0x227: /* WWW Refresh */ 302 val = 0x67; 303 break; 304 305 case 0x22a: /* WWW Favorites */ 306 val = 0x66; 307 break; 308 309 default: 310 val = 0; 311 break; 312 } 313 314 /* XXX FIXME - UGLY HACK */ 315 if (val != 0) { 316 if (hid_device->keyboard) { 317 int32_t buf[4] = { 0xe0, val, 318 0xe0, val|0x80 }; 319 320 assert(s->vkbd != -1); 321 write(s->vkbd, buf, sizeof(buf)); 322 } else 323 syslog(LOG_ERR, "Keyboard events " \ 324 "received from non-keyboard " \ 325 "device %s. Please report", 326 bt_ntoa(&s->bdaddr, NULL)); 327 } 328 break; 329 330 case HUP_MICROSOFT: 331 switch (usage) { 332 case 0xfe01: 333 if (!hid_device->battery_power) 334 break; 335 336 switch (val) { 337 case 1: 338 syslog(LOG_INFO, "Battery is OK on %s", 339 bt_ntoa(&s->bdaddr, NULL)); 340 break; 341 342 case 2: 343 syslog(LOG_NOTICE, "Low battery on %s", 344 bt_ntoa(&s->bdaddr, NULL)); 345 break; 346 347 case 3: 348 syslog(LOG_WARNING, "Very low battery "\ 349 "on %s", 350 bt_ntoa(&s->bdaddr, NULL)); 351 break; 352 } 353 break; 354 } 355 break; 356 } 357 } 358 hid_end_parse(d); 359 360 /* 361 * XXX FIXME Feed keyboard events into kernel. 362 * The code below works, bit host also needs to track 363 * and handle repeat. 364 * 365 * Key repeat currently works in X, but not in console. 366 */ 367 368 if (kevents > 0) { 369 if (hid_device->keyboard) { 370 assert(s->vkbd != -1); 371 kbd_process_keys(s); 372 } else 373 syslog(LOG_ERR, "Keyboard events received from " \ 374 "non-keyboard device %s. Please report", 375 bt_ntoa(&s->bdaddr, NULL)); 376 } 377 378 /* 379 * XXX FIXME Feed mouse events into kernel. 380 * The code block below works, but it is not good enough. 381 * Need to track double-clicks etc. 382 * 383 * Double click currently works in X, but not in console. 384 */ 385 386 if (mevents > 0) { 387 struct mouse_info mi; 388 389 mi.operation = MOUSE_ACTION; 390 mi.u.data.x = mouse_x; 391 mi.u.data.y = mouse_y; 392 mi.u.data.z = mouse_z; 393 mi.u.data.buttons = mouse_butt; 394 395 if (ioctl(s->srv->cons, CONS_MOUSECTL, &mi) < 0) 396 syslog(LOG_ERR, "Could not process mouse events from " \ 397 "%s. %s (%d)", bt_ntoa(&s->bdaddr, NULL), 398 strerror(errno), errno); 399 } 400 401 return (0); 402 } 403