hid.c revision 212335
1226031Sstas/* 2226031Sstas * hid.c 3226031Sstas */ 4226031Sstas 5226031Sstas/*- 6226031Sstas * Copyright (c) 2006 Maksim Yevmenkin <m_evmenkin@yahoo.com> 7226031Sstas * All rights reserved. 8226031Sstas * 9226031Sstas * Redistribution and use in source and binary forms, with or without 10226031Sstas * modification, are permitted provided that the following conditions 11226031Sstas * are met: 12226031Sstas * 1. Redistributions of source code must retain the above copyright 13226031Sstas * notice, this list of conditions and the following disclaimer. 14226031Sstas * 2. Redistributions in binary form must reproduce the above copyright 15226031Sstas * notice, this list of conditions and the following disclaimer in the 16226031Sstas * documentation and/or other materials provided with the distribution. 17226031Sstas * 18226031Sstas * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19226031Sstas * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20226031Sstas * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21226031Sstas * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22226031Sstas * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23226031Sstas * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24226031Sstas * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25226031Sstas * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26226031Sstas * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27226031Sstas * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28226031Sstas * SUCH DAMAGE. 29226031Sstas * 30226031Sstas * $Id: hid.c,v 1.5 2006/09/07 21:06:53 max Exp $ 31226031Sstas * $FreeBSD: head/usr.sbin/bluetooth/bthidd/hid.c 212335 2010-09-08 20:00:27Z emax $ 32226031Sstas */ 33226031Sstas 34226031Sstas#include <sys/consio.h> 35226031Sstas#include <sys/mouse.h> 36226031Sstas#include <sys/queue.h> 37226031Sstas#include <assert.h> 38226031Sstas#include <bluetooth.h> 39226031Sstas#include <dev/usb/usb.h> 40226031Sstas#include <dev/usb/usbhid.h> 41226031Sstas#include <errno.h> 42226031Sstas#include <stdio.h> 43226031Sstas#include <string.h> 44226031Sstas#include <syslog.h> 45226031Sstas#include <unistd.h> 46226031Sstas#include <usbhid.h> 47226031Sstas#include "bthid_config.h" 48226031Sstas#include "bthidd.h" 49226031Sstas#include "kbd.h" 50226031Sstas 51226031Sstas#undef min 52226031Sstas#define min(x, y) (((x) < (y))? (x) : (y)) 53226031Sstas 54226031Sstas#undef ASIZE 55226031Sstas#define ASIZE(a) (sizeof(a)/sizeof(a[0])) 56226031Sstas 57226031Sstas/* 58226031Sstas * Process data from control channel 59226031Sstas */ 60226031Sstas 61226031Sstasint32_t 62226031Sstashid_control(bthid_session_p s, uint8_t *data, int32_t len) 63226031Sstas{ 64226031Sstas assert(s != NULL); 65226031Sstas assert(data != NULL); 66226031Sstas assert(len > 0); 67226031Sstas 68226031Sstas switch (data[0] >> 4) { 69226031Sstas case 0: /* Handshake (response to command) */ 70226031Sstas if (data[0] & 0xf) 71226031Sstas syslog(LOG_ERR, "Got handshake message with error " \ 72226031Sstas "response 0x%x from %s", 73226031Sstas data[0], bt_ntoa(&s->bdaddr, NULL)); 74226031Sstas break; 75226031Sstas 76226031Sstas case 1: /* HID Control */ 77226031Sstas switch (data[0] & 0xf) { 78226031Sstas case 0: /* NOP */ 79226031Sstas break; 80226031Sstas 81226031Sstas case 1: /* Hard reset */ 82226031Sstas case 2: /* Soft reset */ 83226031Sstas syslog(LOG_WARNING, "Device %s requested %s reset", 84226031Sstas bt_ntoa(&s->bdaddr, NULL), 85226031Sstas ((data[0] & 0xf) == 1)? "hard" : "soft"); 86226031Sstas break; 87226031Sstas 88226031Sstas case 3: /* Suspend */ 89226031Sstas 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 125int32_t 126hid_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, i; 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 ++; 154 len --; 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 (h.kind != hid_input)) 165 continue; 166 167 page = HID_PAGE(h.usage); 168 usage = HID_USAGE(h.usage); 169 val = hid_get_data(data, &h); 170 171 switch (page) { 172 case HUP_GENERIC_DESKTOP: 173 switch (usage) { 174 case HUG_X: 175 mouse_x = val; 176 mevents ++; 177 break; 178 179 case HUG_Y: 180 mouse_y = val; 181 mevents ++; 182 break; 183 184 case HUG_WHEEL: 185 mouse_z = -val; 186 mevents ++; 187 break; 188 189 case HUG_SYSTEM_SLEEP: 190 if (val) 191 syslog(LOG_NOTICE, "Sleep button pressed"); 192 break; 193 } 194 break; 195 196 case HUP_KEYBOARD: 197 kevents ++; 198 199 if (h.flags & HIO_VARIABLE) { 200 if (val && usage < kbd_maxkey()) 201 bit_set(s->keys1, usage); 202 } else { 203 if (val && val < kbd_maxkey()) 204 bit_set(s->keys1, val); 205 206 for (i = 1; i < h.report_count; i++) { 207 h.pos += h.report_size; 208 val = hid_get_data(data, &h); 209 if (val && val < kbd_maxkey()) 210 bit_set(s->keys1, val); 211 } 212 } 213 break; 214 215 case HUP_BUTTON: 216 if (usage != 0) { 217 if (usage == 2) 218 usage = 3; 219 else if (usage == 3) 220 usage = 2; 221 222 mouse_butt |= (val << (usage - 1)); 223 mevents ++; 224 } 225 break; 226 227 case HUP_CONSUMER: 228 if (!val) 229 break; 230 231 switch (usage) { 232 case 0xb5: /* Scan Next Track */ 233 val = 0x19; 234 break; 235 236 case 0xb6: /* Scan Previous Track */ 237 val = 0x10; 238 break; 239 240 case 0xb7: /* Stop */ 241 val = 0x24; 242 break; 243 244 case 0xcd: /* Play/Pause */ 245 val = 0x22; 246 break; 247 248 case 0xe2: /* Mute */ 249 val = 0x20; 250 break; 251 252 case 0xe9: /* Volume Up */ 253 val = 0x30; 254 break; 255 256 case 0xea: /* Volume Down */ 257 val = 0x2E; 258 break; 259 260 case 0x183: /* Media Select */ 261 val = 0x6D; 262 break; 263 264 case 0x018a: /* Mail */ 265 val = 0x6C; 266 break; 267 268 case 0x192: /* Calculator */ 269 val = 0x21; 270 break; 271 272 case 0x194: /* My Computer */ 273 val = 0x6B; 274 break; 275 276 case 0x221: /* WWW Search */ 277 val = 0x65; 278 break; 279 280 case 0x223: /* WWW Home */ 281 val = 0x32; 282 break; 283 284 case 0x224: /* WWW Back */ 285 val = 0x6A; 286 break; 287 288 case 0x225: /* WWW Forward */ 289 val = 0x69; 290 break; 291 292 case 0x226: /* WWW Stop */ 293 val = 0x68; 294 break; 295 296 case 0x227: /* WWW Refresh */ 297 val = 0x67; 298 break; 299 300 case 0x22a: /* WWW Favorites */ 301 val = 0x66; 302 break; 303 304 default: 305 val = 0; 306 break; 307 } 308 309 /* XXX FIXME - UGLY HACK */ 310 if (val != 0) { 311 if (hid_device->keyboard) { 312 int32_t buf[4] = { 0xe0, val, 313 0xe0, val|0x80 }; 314 315 assert(s->vkbd != -1); 316 write(s->vkbd, buf, sizeof(buf)); 317 } else 318 syslog(LOG_ERR, "Keyboard events " \ 319 "received from non-keyboard " \ 320 "device %s. Please report", 321 bt_ntoa(&s->bdaddr, NULL)); 322 } 323 break; 324 325 case HUP_MICROSOFT: 326 switch (usage) { 327 case 0xfe01: 328 if (!hid_device->battery_power) 329 break; 330 331 switch (val) { 332 case 1: 333 syslog(LOG_INFO, "Battery is OK on %s", 334 bt_ntoa(&s->bdaddr, NULL)); 335 break; 336 337 case 2: 338 syslog(LOG_NOTICE, "Low battery on %s", 339 bt_ntoa(&s->bdaddr, NULL)); 340 break; 341 342 case 3: 343 syslog(LOG_WARNING, "Very low battery "\ 344 "on %s", 345 bt_ntoa(&s->bdaddr, NULL)); 346 break; 347 } 348 break; 349 } 350 break; 351 } 352 } 353 hid_end_parse(d); 354 355 /* 356 * XXX FIXME Feed keyboard events into kernel. 357 * The code below works, bit host also needs to track 358 * and handle repeat. 359 * 360 * Key repeat currently works in X, but not in console. 361 */ 362 363 if (kevents > 0) { 364 if (hid_device->keyboard) { 365 assert(s->vkbd != -1); 366 kbd_process_keys(s); 367 } else 368 syslog(LOG_ERR, "Keyboard events received from " \ 369 "non-keyboard device %s. Please report", 370 bt_ntoa(&s->bdaddr, NULL)); 371 } 372 373 /* 374 * XXX FIXME Feed mouse events into kernel. 375 * The code block below works, but it is not good enough. 376 * Need to track double-clicks etc. 377 * 378 * Double click currently works in X, but not in console. 379 */ 380 381 if (mevents > 0) { 382 struct mouse_info mi; 383 384 mi.operation = MOUSE_ACTION; 385 mi.u.data.x = mouse_x; 386 mi.u.data.y = mouse_y; 387 mi.u.data.z = mouse_z; 388 mi.u.data.buttons = mouse_butt; 389 390 if (ioctl(s->srv->cons, CONS_MOUSECTL, &mi) < 0) 391 syslog(LOG_ERR, "Could not process mouse events from " \ 392 "%s. %s (%d)", bt_ntoa(&s->bdaddr, NULL), 393 strerror(errno), errno); 394 } 395 396 return (0); 397} 398