Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/dev/hid/hidcc.c
Version:
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1 /* $OpenBSD: hidcc.c,v 1.5 2022/11/14 00:16:44 deraadt Exp $ */ 2 3 /* 4 * Copyright (c) 2022 Anton Lindqvist <anton@openbsd.org> 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 #include <sys/param.h> 20 #include <sys/systm.h> 21 #include <sys/malloc.h> 22 #include <sys/device.h> 23 24 #include <dev/hid/hidccvar.h> 25 #include <dev/hid/hid.h> 26 27 #include <dev/wscons/wsconsio.h> 28 #include <dev/wscons/wskbdvar.h> 29 #include <dev/wscons/wsksymdef.h> 30 #include <dev/wscons/wsksymvar.h> 31 32 #define DEVNAME(sc) ((sc)->sc_dev->dv_xname) 33 34 /* #define HIDCC_DEBUG */ 35 #ifdef HIDCC_DEBUG 36 #define DPRINTF(x...) do { if (hidcc_debug) printf(x); } while (0) 37 struct hidcc; 38 void hidcc_dump(struct hidcc *, const char *, uint8_t *, u_int); 39 int hidcc_debug = 1; 40 #else 41 #define DPRINTF(x...) 42 #define hidcc_dump(sc, prefix, data, len) 43 #endif 44 45 struct hidcc { 46 struct device *sc_dev; 47 struct device *sc_wskbddev; 48 49 /* Key mappings used in translating mode. */ 50 keysym_t *sc_map; 51 u_int sc_maplen; 52 u_int sc_mapsiz; 53 54 /* Key mappings used in raw mode. */ 55 const struct hidcc_keysym **sc_raw; 56 u_int sc_rawsiz; 57 58 u_int sc_nusages; 59 int sc_isarray; 60 int sc_mode; 61 62 /* 63 * Slice of the interrupt buffer which represents a pressed key. 64 * See section 8 (Report Protocol) of the HID specification v1.11. 65 */ 66 struct { 67 uint8_t *i_buf; 68 uint32_t i_bufsiz; 69 uint32_t i_off; /* offset in bits */ 70 uint32_t i_len; /* length in bits */ 71 } sc_input; 72 73 struct { 74 uint32_t v_inc; /* volume increment bit offset */ 75 uint32_t v_dec; /* volume decrement bit offset */ 76 uint32_t v_off; /* offset in bits */ 77 uint32_t v_len; /* length in bits */ 78 } sc_volume; 79 80 /* Last pressed key. */ 81 union { 82 int sc_last_translate; 83 u_char sc_last_raw; 84 }; 85 86 /* 87 * Only the first element is populated whereas the second remains zeroed 88 * out since such trailing sentinel is required by wskbd_load_keymap(). 89 */ 90 struct wscons_keydesc sc_keydesc[2]; 91 struct wskbd_mapdata sc_keymap; 92 93 int (*sc_enable)(void *, int); 94 void *sc_arg; 95 }; 96 97 struct hidcc_keysym { 98 #ifdef HIDCC_DEBUG 99 const char *ks_name; 100 #endif 101 int32_t ks_usage; 102 keysym_t ks_key; 103 u_char ks_raw; 104 }; 105 106 /* 107 * Mapping of HID Consumer Control usages to key symbols based on the HID Usage 108 * Tables 1.21 specification. The same usages can also be found at 109 * /usr/share/misc/usb_hid_usages. 110 * The raw scan codes are taken from X11, see the media_nav_acpi_common symbols 111 * in dist/xkeyboard-config/symbols/inet. 112 * Then use dist/xkeyboard-config/keycodes/xfree86 to resolve keys to the 113 * corresponding raw scan code. 114 */ 115 static const struct hidcc_keysym hidcc_keysyms[] = { 116 #ifdef HIDCC_DEBUG 117 #define Y(usage, name, key, raw) { name, usage, key, raw }, 118 #else 119 #define Y(usage, name, key, raw) { usage, key, raw }, 120 #endif 121 #define N(usage, name, key, raw) 122 /* 0x0000 Unassigned */ 123 N(0x0001, "Consumer Control", 0, 0) 124 N(0x0002, "Numeric Key Pad", 0, 0) 125 N(0x0003, "Programmable Buttons", 0, 0) 126 N(0x0004, "Microphone", 0, 0) 127 N(0x0005, "Headphone", 0, 0) 128 N(0x0006, "Graphic Equalizer", 0, 0) 129 /* 0x0007-0x001F Reserved */ 130 N(0x0020, "+10", 0, 0) 131 N(0x0021, "+100", 0, 0) 132 N(0x0022, "AM/PM", 0, 0) 133 /* 0x0023-0x002F Reserved */ 134 Y(0x0030, "Power", 0, 222 /* I5E = XF86PowerOff */) 135 N(0x0031, "Reset", 0, 0) 136 Y(0x0032, "Sleep", 0, 150 /* I16 = XF86Sleep */) 137 N(0x0033, "Sleep After", 0, 0) 138 N(0x0034, "Sleep Mode", 0, 0) 139 N(0x0035, "Illumination", 0, 0) 140 N(0x0036, "Function Buttons", 0, 0) 141 /* 0x0037-0x003F Reserved */ 142 N(0x0040, "Menu", 0, 0) 143 N(0x0041, "Menu Pick", 0, 0) 144 N(0x0042, "Menu Up", 0, 0) 145 N(0x0043, "Menu Down", 0, 0) 146 N(0x0044, "Menu Left", 0, 0) 147 N(0x0045, "Menu Right", 0, 0) 148 N(0x0046, "Menu Escape", 0, 0) 149 N(0x0047, "Menu Value Increase", 0, 0) 150 N(0x0048, "Menu Value Decrease", 0, 0) 151 /* 0x0049-0x005F Reserved */ 152 N(0x0060, "Data On Screen", 0, 0) 153 N(0x0061, "Closed Caption", 0, 0) 154 N(0x0062, "Closed Caption Select", 0, 0) 155 N(0x0063, "VCR/TV", 0, 0) 156 N(0x0064, "Broadcast Mode", 0, 0) 157 N(0x0065, "Snapshot", 0, 0) 158 N(0x0066, "Still", 0, 0) 159 N(0x0067, "Picture-in-Picture Toggle", 0, 0) 160 N(0x0068, "Picture-in-Picture Swap", 0, 0) 161 N(0x0069, "Red Menu Button", 0, 0) 162 N(0x006A, "Green Menu Button", 0, 0) 163 N(0x006B, "Blue Menu Button", 0, 0) 164 N(0x006C, "Yellow Menu Button", 0, 0) 165 N(0x006D, "Aspect", 0, 0) 166 N(0x006E, "3D Mode Select", 0, 0) 167 Y(0x006F, "Display Brightness Increment", KS_Cmd_BrightnessUp, 0) 168 Y(0x0070, "Display Brightness Decrement", KS_Cmd_BrightnessDown, 0) 169 N(0x0071, "Display Brightness", 0, 0) 170 N(0x0072, "Display Backlight Toggle", 0, 0) 171 N(0x0073, "Display Set Brightness to Minimum", 0, 0) 172 N(0x0074, "Display Set Brightness to Maximum", 0, 0) 173 N(0x0075, "Display Set Auto Brightness", 0, 0) 174 N(0x0076, "Camera Access Enabled", 0, 0) 175 N(0x0077, "Camera Access Disabled", 0, 0) 176 N(0x0078, "Camera Access Toggle", 0, 0) 177 N(0x0079, "Keyboard Brightness Increment", 0, 0) 178 N(0x007A, "Keyboard Brightness Decrement", 0, 0) 179 N(0x007B, "Keyboard Backlight Set Level", 0, 0) 180 N(0x007C, "Keyboard Backlight OOC", 0, 0) 181 N(0x007D, "Keyboard Backlight Set Minimum", 0, 0) 182 N(0x007E, "Keyboard Backlight Set Maximum", 0, 0) 183 N(0x007F, "Keyboard Backlight Auto", 0, 0) 184 N(0x0080, "Selection", 0, 0) 185 N(0x0081, "Assign Selection", 0, 0) 186 N(0x0082, "Mode Step", 0, 0) 187 N(0x0083, "Recall Last", 0, 0) 188 N(0x0084, "Enter Channel", 0, 0) 189 N(0x0085, "Order Movie", 0, 0) 190 N(0x0086, "Channel", 0, 0) 191 N(0x0087, "Media Selection", 0, 0) 192 N(0x0088, "Media Select Computer", 0, 0) 193 N(0x0089, "Media Select TV", 0, 0) 194 N(0x008A, "Media Select WWW", 0, 0) 195 N(0x008B, "Media Select DVD", 0, 0) 196 N(0x008C, "Media Select Telephone", 0, 0) 197 N(0x008D, "Media Select Program Guide", 0, 0) 198 N(0x008E, "Media Select Video Phone", 0, 0) 199 N(0x008F, "Media Select Games", 0, 0) 200 N(0x0090, "Media Select Messages", 0, 0) 201 N(0x0091, "Media Select CD", 0, 0) 202 N(0x0092, "Media Select VCR", 0, 0) 203 N(0x0093, "Media Select Tuner", 0, 0) 204 N(0x0094, "Quit", 0, 0) 205 N(0x0095, "Help", 0, 0) 206 N(0x0096, "Media Select Tape", 0, 0) 207 N(0x0097, "Media Select Cable", 0, 0) 208 N(0x0098, "Media Select Satellite", 0, 0) 209 N(0x0099, "Media Select Security", 0, 0) 210 N(0x009A, "Media Select Home", 0, 0) 211 N(0x009B, "Media Select Call", 0, 0) 212 N(0x009C, "Channel Increment", 0, 0) 213 N(0x009D, "Channel Decrement", 0, 0) 214 N(0x009E, "Media Select SAP", 0, 0) 215 /* 0x009F-0x009F Reserved */ 216 N(0x00A0, "VCR Plus", 0, 0) 217 N(0x00A1, "Once", 0, 0) 218 N(0x00A2, "Daily", 0, 0) 219 N(0x00A3, "Weekly", 0, 0) 220 N(0x00A4, "Monthly", 0, 0) 221 /* 0x00A5-0x00AF Reserved */ 222 N(0x00B0, "Play", 0, 0) 223 N(0x00B1, "Pause", 0, 0) 224 N(0x00B2, "Record", 0, 0) 225 N(0x00B3, "Fast Forward", 0, 0) 226 N(0x00B4, "Rewind", 0, 0) 227 Y(0x00B5, "Scan Next Track", 0, 153 /* I19 = XF86AudioNext */) 228 Y(0x00B6, "Scan Previous Track", 0, 144 /* I10 = XF86AudioPrev */) 229 Y(0x00B7, "Stop", 0, 164 /* I24 = XF86AudioStop */) 230 Y(0x00B8, "Eject", 0, 170 /* K5A = XF86Eject */) 231 N(0x00B9, "Random Play", 0, 0) 232 N(0x00BA, "Select Disc", 0, 0) 233 N(0x00BB, "Enter Disc", 0, 0) 234 N(0x00BC, "Repeat", 0, 0) 235 N(0x00BD, "Tracking", 0, 0) 236 N(0x00BE, "Track Normal", 0, 0) 237 N(0x00BF, "Slow Tracking", 0, 0) 238 N(0x00C0, "Frame Forward", 0, 0) 239 N(0x00C1, "Frame Back", 0, 0) 240 N(0x00C2, "Mark", 0, 0) 241 N(0x00C3, "Clear Mark", 0, 0) 242 N(0x00C4, "Repeat From Mark", 0, 0) 243 N(0x00C5, "Return To Mark", 0, 0) 244 N(0x00C6, "Search Mark Forward", 0, 0) 245 N(0x00C7, "Search Mark Backwards", 0, 0) 246 N(0x00C8, "Counter Reset", 0, 0) 247 N(0x00C9, "Show Counter", 0, 0) 248 N(0x00CA, "Tracking Increment", 0, 0) 249 N(0x00CB, "Tracking Decrement", 0, 0) 250 N(0x00CC, "Stop/Eject", 0, 0) 251 Y(0x00CD, "Play/Pause", 0, 162 /* I22 = XF86AudioPlay */) 252 N(0x00CE, "Play/Skip", 0, 0) 253 N(0x00CF, "Voice Command", 0, 0) 254 N(0x00D0, "Invoke Capture Interface", 0, 0) 255 N(0x00D1, "Start or Stop Game Recording", 0, 0) 256 N(0x00D2, "Historical Game Capture", 0, 0) 257 N(0x00D3, "Capture Game Screenshot", 0, 0) 258 N(0x00D4, "Show or Hide Recording Indicator", 0, 0) 259 N(0x00D5, "Start or Stop Microphone Capture", 0, 0) 260 N(0x00D6, "Start or Stop Camera Capture", 0, 0) 261 N(0x00D7, "Start or Stop Game Broadcast", 0, 0) 262 /* 0x00D8-0x00DF Reserved */ 263 N(0x00E0, "Volume", 0, 0) 264 N(0x00E1, "Balance", 0, 0) 265 Y(0x00E2, "Mute", KS_AudioMute, 160 /* I20 = XF86AudioMute */) 266 N(0x00E3, "Bass", 0, 0) 267 N(0x00E4, "Treble", 0, 0) 268 N(0x00E5, "Bass Boost", 0, 0) 269 N(0x00E6, "Surround Mode", 0, 0) 270 N(0x00E7, "Loudness", 0, 0) 271 N(0x00E8, "MPX", 0, 0) 272 Y(0x00E9, "Volume Increment", KS_AudioRaise, 176 /* I30 = XF86AudioRaiseVolume */) 273 Y(0x00EA, "Volume Decrement", KS_AudioLower, 174 /* I2E = XF86AudioLowerVolume */) 274 /* 0x00EB-0x00EF Reserved */ 275 N(0x00F0, "Speed Select", 0, 0) 276 N(0x00F1, "Playback Speed", 0, 0) 277 N(0x00F2, "Standard Play", 0, 0) 278 N(0x00F3, "Long Play", 0, 0) 279 N(0x00F4, "Extended Play", 0, 0) 280 N(0x00F5, "Slow", 0, 0) 281 /* 0x00F6-0x00FF Reserved */ 282 N(0x0100, "Fan Enable", 0, 0) 283 N(0x0101, "Fan Speed", 0, 0) 284 N(0x0102, "Light Enable", 0, 0) 285 N(0x0103, "Light Illumination Level", 0, 0) 286 N(0x0104, "Climate Control Enable", 0, 0) 287 N(0x0105, "Room Temperature", 0, 0) 288 N(0x0106, "Security Enable", 0, 0) 289 N(0x0107, "Fire Alarm", 0, 0) 290 N(0x0108, "Police Alarm", 0, 0) 291 N(0x0109, "Proximity", 0, 0) 292 N(0x010A, "Motion", 0, 0) 293 N(0x010B, "Duress Alarm", 0, 0) 294 N(0x010C, "Holdup Alarm", 0, 0) 295 N(0x010D, "Medical Alarm", 0, 0) 296 /* 0x010E-0x014F Reserved */ 297 N(0x0150, "Balance Right", 0, 0) 298 N(0x0151, "Balance Left", 0, 0) 299 N(0x0152, "Bass Increment", 0, 0) 300 N(0x0153, "Bass Decrement", 0, 0) 301 N(0x0154, "Treble Increment", 0, 0) 302 N(0x0155, "Treble Decrement", 0, 0) 303 /* 0x0156-0x015F Reserved */ 304 N(0x0160, "Speaker System", 0, 0) 305 N(0x0161, "Channel Left", 0, 0) 306 N(0x0162, "Channel Right", 0, 0) 307 N(0x0163, "Channel Center", 0, 0) 308 N(0x0164, "Channel Front", 0, 0) 309 N(0x0165, "Channel Center Front", 0, 0) 310 N(0x0166, "Channel Side", 0, 0) 311 N(0x0167, "Channel Surround", 0, 0) 312 N(0x0168, "Channel Low Frequency Enhancement", 0, 0) 313 N(0x0169, "Channel Top", 0, 0) 314 N(0x016A, "Channel Unknown", 0, 0) 315 /* 0x016B-0x016F Reserved */ 316 N(0x0170, "Sub-channel", 0, 0) 317 N(0x0171, "Sub-channel Increment", 0, 0) 318 N(0x0172, "Sub-channel Decrement", 0, 0) 319 N(0x0173, "Alternate Audio Increment", 0, 0) 320 N(0x0174, "Alternate Audio Decrement", 0, 0) 321 /* 0x0175-0x017F Reserved */ 322 N(0x0180, "Application Launch Buttons", 0, 0) 323 N(0x0181, "AL Launch Button Configuration Tool", 0, 0) 324 N(0x0182, "AL Programmable Button Configuration", 0, 0) 325 N(0x0183, "AL Consumer Control Configuration", 0, 0) 326 N(0x0184, "AL Word Processor", 0, 0) 327 N(0x0185, "AL Text Editor", 0, 0) 328 N(0x0186, "AL Spreadsheet", 0, 0) 329 N(0x0187, "AL Graphics Editor", 0, 0) 330 N(0x0188, "AL Presentation App", 0, 0) 331 N(0x0189, "AL Database App", 0, 0) 332 Y(0x018A, "AL Email Reader", 0, 235 /* I6C = XF86Mail */) 333 N(0x018B, "AL Newsreader", 0, 0) 334 N(0x018C, "AL Voicemail", 0, 0) 335 N(0x018D, "AL Contacts/Address Book", 0, 0) 336 N(0x018E, "AL Calendar/Schedule", 0, 0) 337 N(0x018F, "AL Task/Project Manager", 0, 0) 338 N(0x0190, "AL Log/Journal/Timecard", 0, 0) 339 N(0x0191, "AL Checkbook/Finance", 0, 0) 340 Y(0x0192, "AL Calculator", 0, 161 /* I21 = XF86Calculator */) 341 N(0x0193, "AL A/V Capture/Playback", 0, 0) 342 N(0x0194, "AL Local Machine Browser", 0, 0) 343 N(0x0195, "AL LAN/WAN Browser", 0, 0) 344 Y(0x0196, "AL Internet Browser", 0, 178 /* I32 = XF86WWW */) 345 N(0x0197, "AL Remote Networking/ISP Connect", 0, 0) 346 N(0x0198, "AL Network Conference", 0, 0) 347 N(0x0199, "AL Network Chat", 0, 0) 348 N(0x019A, "AL Telephony/Dialer", 0, 0) 349 N(0x019B, "AL Logon", 0, 0) 350 N(0x019C, "AL Logoff", 0, 0) 351 N(0x019D, "AL Logon/Logoff", 0, 0) 352 N(0x019E, "AL Terminal Lock/Screensaver", 0, 0) 353 N(0x019F, "AL Control Panel", 0, 0) 354 N(0x01A0, "AL Command Line Processor/Run", 0, 0) 355 N(0x01A1, "AL Process/Task Manager", 0, 0) 356 N(0x01A2, "AL Select Task/Application", 0, 0) 357 N(0x01A3, "AL Next Task/Application", 0, 0) 358 N(0x01A4, "AL Previous Task/Application", 0, 0) 359 N(0x01A5, "AL Preemptive Halt Task/Application", 0, 0) 360 N(0x01A6, "AL Integrated Help Center", 0, 0) 361 N(0x01A7, "AL My Documents", 0, 0) 362 N(0x01A8, "AL Thesaurus", 0, 0) 363 N(0x01A9, "AL Dictionary", 0, 0) 364 N(0x01AA, "AL Desktop", 0, 0) 365 N(0x01AB, "AC Spell", 0, 0) 366 N(0x01AC, "AL Grammar Check", 0, 0) 367 N(0x01AD, "AL Wireless Status", 0, 0) 368 N(0x01AE, "AL Keyboard Layout", 0, 0) 369 N(0x01AF, "AL Virus Protection", 0, 0) 370 N(0x01B0, "AL Encryption", 0, 0) 371 N(0x01B1, "AL Screen Saver", 0, 0) 372 N(0x01B2, "AL Alarms", 0, 0) 373 N(0x01B3, "AL Clock", 0, 0) 374 N(0x01B4, "AL File Browser", 0, 0) 375 N(0x01B5, "AL Power Status", 0, 0) 376 N(0x01B6, "AL My Pictures", 0, 0) 377 N(0x01B7, "AL My Music", 0, 0) 378 N(0x01B8, "AL Movie Browser", 0, 0) 379 N(0x01B9, "AL Digital Rights Manager", 0, 0) 380 N(0x01BA, "AL Digital Wallet", 0, 0) 381 /* 0x01BB-0x01BB Reserved */ 382 N(0x01BC, "AL Instant Messaging", 0, 0) 383 N(0x01BD, "AL OEM Feature/Tips/Tutorial Browser", 0, 0) 384 N(0x01BE, "AL OEM Help", 0, 0) 385 N(0x01BF, "AL Online Community", 0, 0) 386 N(0x01C0, "AL Entertainment Content Browser", 0, 0) 387 N(0x01C1, "AL Online Shopping Browser", 0, 0) 388 N(0x01C2, "AL SmartCard Information/Help", 0, 0) 389 N(0x01C3, "AL Market Monitor/Finance Browser", 0, 0) 390 N(0x01C4, "AL Customized Corporate News Browser", 0, 0) 391 N(0x01C5, "AL Online Activity Browser", 0, 0) 392 Y(0x01C6, "AL Research/Search Browser", 0, 229 /* I65 = XF86Search */) 393 N(0x01C7, "AL Audio Player", 0, 0) 394 N(0x01C8, "AL Message Status", 0, 0) 395 N(0x01C9, "AL Contact Sync", 0, 0) 396 N(0x01CA, "AL Navigation", 0, 0) 397 N(0x01CB, "AL Context-aware Desktop Assistant", 0, 0) 398 /* 0x01CC-0x01FF Reserved */ 399 N(0x0200, "Generic GUI Application Controls", 0, 0) 400 N(0x0201, "AC New", 0, 0) 401 N(0x0202, "AC Open", 0, 0) 402 N(0x0203, "AC Close", 0, 0) 403 N(0x0204, "AC Exit", 0, 0) 404 N(0x0205, "AC Maximize", 0, 0) 405 N(0x0206, "AC Minimize", 0, 0) 406 N(0x0207, "AC Save", 0, 0) 407 N(0x0208, "AC Print", 0, 0) 408 N(0x0209, "AC Properties", 0, 0) 409 /* 0x020A-0x0219 Reserved */ 410 N(0x021A, "AC Undo", 0, 0) 411 N(0x021B, "AC Copy", 0, 0) 412 N(0x021C, "AC Cut", 0, 0) 413 N(0x021D, "AC Paste", 0, 0) 414 N(0x021E, "AC Select All", 0, 0) 415 N(0x021F, "AC Find", 0, 0) 416 N(0x0220, "AC Find and Replace", 0, 0) 417 N(0x0221, "AC Search", 0, 0) 418 N(0x0222, "AC Go To", 0, 0) 419 N(0x0223, "AC Home", 0, 0) 420 Y(0x0224, "AC Back", 0, 234 /* I6A = XF86Back */) 421 Y(0x0225, "AC Forward", 0, 233 /* I69 = XF86Forward */) 422 Y(0x0226, "AC Stop", 0, 232 /* I68 = XF86Stop */) 423 Y(0x0227, "AC Refresh", 0, 231 /* I67 = XF86Reload */) 424 N(0x0228, "AC Previous Link", 0, 0) 425 N(0x0229, "AC Next Link", 0, 0) 426 N(0x022A, "AC Bookmarks", 0, 0) 427 N(0x022B, "AC History", 0, 0) 428 N(0x022C, "AC Subscriptions", 0, 0) 429 N(0x022D, "AC Zoom In", 0, 0) 430 N(0x022E, "AC Zoom Out", 0, 0) 431 N(0x022F, "AC Zoom", 0, 0) 432 N(0x0230, "AC Full Screen View", 0, 0) 433 N(0x0231, "AC Normal View", 0, 0) 434 N(0x0232, "AC View Toggle", 0, 0) 435 N(0x0233, "AC Scroll Up", 0, 0) 436 N(0x0234, "AC Scroll Down", 0, 0) 437 N(0x0235, "AC Scroll", 0, 0) 438 N(0x0236, "AC Pan Left", 0, 0) 439 N(0x0237, "AC Pan Right", 0, 0) 440 N(0x0238, "AC Pan", 0, 0) 441 N(0x0239, "AC New Window", 0, 0) 442 N(0x023A, "AC Tile Horizontally", 0, 0) 443 N(0x023B, "AC Tile Vertically", 0, 0) 444 N(0x023C, "AC Format", 0, 0) 445 N(0x023D, "AC Edit", 0, 0) 446 N(0x023E, "AC Bold", 0, 0) 447 N(0x023F, "AC Italics", 0, 0) 448 N(0x0240, "AC Underline", 0, 0) 449 N(0x0241, "AC Strikethrough", 0, 0) 450 N(0x0242, "AC Subscript", 0, 0) 451 N(0x0243, "AC Superscript", 0, 0) 452 N(0x0244, "AC All Caps", 0, 0) 453 N(0x0245, "AC Rotate", 0, 0) 454 N(0x0246, "AC Resize", 0, 0) 455 N(0x0247, "AC Flip Horizontal", 0, 0) 456 N(0x0248, "AC Flip Vertical", 0, 0) 457 N(0x0249, "AC Mirror Horizontal", 0, 0) 458 N(0x024A, "AC Mirror Vertical", 0, 0) 459 N(0x024B, "AC Font Select", 0, 0) 460 N(0x024C, "AC Font Color", 0, 0) 461 N(0x024D, "AC Font Size", 0, 0) 462 N(0x024E, "AC Justify Left", 0, 0) 463 N(0x024F, "AC Justify Center H", 0, 0) 464 N(0x0250, "AC Justify Right", 0, 0) 465 N(0x0251, "AC Justify Block H", 0, 0) 466 N(0x0252, "AC Justify Top", 0, 0) 467 N(0x0253, "AC Justify Center V", 0, 0) 468 N(0x0254, "AC Justify Bottom", 0, 0) 469 N(0x0255, "AC Justify Block V", 0, 0) 470 N(0x0256, "AC Justify Decrease", 0, 0) 471 N(0x0257, "AC Justify Increase", 0, 0) 472 N(0x0258, "AC Numbered List", 0, 0) 473 N(0x0259, "AC Restart Numbering", 0, 0) 474 N(0x025A, "AC Bulleted List", 0, 0) 475 N(0x025B, "AC Promote", 0, 0) 476 N(0x025C, "AC Demote", 0, 0) 477 N(0x025D, "AC Yes", 0, 0) 478 N(0x025E, "AC No", 0, 0) 479 N(0x025F, "AC Cancel", 0, 0) 480 N(0x0260, "AC Catalog", 0, 0) 481 N(0x0261, "AC Buy/Checkout", 0, 0) 482 N(0x0262, "AC Add to Cart", 0, 0) 483 N(0x0263, "AC Expand", 0, 0) 484 N(0x0264, "AC Expand All", 0, 0) 485 N(0x0265, "AC Collapse", 0, 0) 486 N(0x0266, "AC Collapse All", 0, 0) 487 N(0x0267, "AC Print Preview", 0, 0) 488 N(0x0268, "AC Paste Special", 0, 0) 489 N(0x0269, "AC Insert Mode", 0, 0) 490 N(0x026A, "AC Delete", 0, 0) 491 N(0x026B, "AC Lock", 0, 0) 492 N(0x026C, "AC Unlock", 0, 0) 493 N(0x026D, "AC Protect", 0, 0) 494 N(0x026E, "AC Unprotect", 0, 0) 495 N(0x026F, "AC Attach Comment", 0, 0) 496 N(0x0270, "AC Delete Comment", 0, 0) 497 N(0x0271, "AC View Comment", 0, 0) 498 N(0x0272, "AC Select Word", 0, 0) 499 N(0x0273, "AC Select Sentence", 0, 0) 500 N(0x0274, "AC Select Paragraph", 0, 0) 501 N(0x0275, "AC Select Column", 0, 0) 502 N(0x0276, "AC Select Row", 0, 0) 503 N(0x0277, "AC Select Table", 0, 0) 504 N(0x0278, "AC Select Object", 0, 0) 505 N(0x0279, "AC Redo/Repeat", 0, 0) 506 N(0x027A, "AC Sort", 0, 0) 507 N(0x027B, "AC Sort Ascending", 0, 0) 508 N(0x027C, "AC Sort Descending", 0, 0) 509 N(0x027D, "AC Filter", 0, 0) 510 N(0x027E, "AC Set Clock", 0, 0) 511 N(0x027F, "AC View Clock", 0, 0) 512 N(0x0280, "AC Select Time Zone", 0, 0) 513 N(0x0281, "AC Edit Time Zones", 0, 0) 514 N(0x0282, "AC Set Alarm", 0, 0) 515 N(0x0283, "AC Clear Alarm", 0, 0) 516 N(0x0284, "AC Snooze Alarm", 0, 0) 517 N(0x0285, "AC Reset Alarm", 0, 0) 518 N(0x0286, "AC Synchronize", 0, 0) 519 N(0x0287, "AC Send/Receive", 0, 0) 520 N(0x0288, "AC Send To", 0, 0) 521 N(0x0289, "AC Reply", 0, 0) 522 N(0x028A, "AC Reply All", 0, 0) 523 N(0x028B, "AC Forward Message", 0, 0) 524 N(0x028C, "AC Send", 0, 0) 525 N(0x028D, "AC Attach File", 0, 0) 526 N(0x028E, "AC Upload", 0, 0) 527 N(0x028F, "AC Download (Save Target As)", 0, 0) 528 N(0x0290, "AC Set Borders", 0, 0) 529 N(0x0291, "AC Insert Row", 0, 0) 530 N(0x0292, "AC Insert Column", 0, 0) 531 N(0x0293, "AC Insert File", 0, 0) 532 N(0x0294, "AC Insert Picture", 0, 0) 533 N(0x0295, "AC Insert Object", 0, 0) 534 N(0x0296, "AC Insert Symbol", 0, 0) 535 N(0x0297, "AC Save and Close", 0, 0) 536 N(0x0298, "AC Rename", 0, 0) 537 N(0x0299, "AC Merge", 0, 0) 538 N(0x029A, "AC Split", 0, 0) 539 N(0x029B, "AC Distribute Horizontally", 0, 0) 540 N(0x029C, "AC Distribute Vertically", 0, 0) 541 N(0x029D, "AC Next Keyboard Layout Select", 0, 0) 542 N(0x029E, "AC Navigation Guidance", 0, 0) 543 N(0x029F, "AC Desktop Show All Windows", 0, 0) 544 N(0x02A0, "AC Soft Key Left", 0, 0) 545 N(0x02A1, "AC Soft Key Right", 0, 0) 546 N(0x02A2, "AC Desktop Show All Applications", 0, 0) 547 /* 0x02A3-0x02AF Reserved */ 548 N(0x02B0, "AC Idle Keep Alive", 0, 0) 549 /* 0x02B1-0x02BF Reserved */ 550 N(0x02C0, "Extended Keyboard Attributes Collection", 0, 0) 551 N(0x02C1, "Keyboard Form Factor", 0, 0) 552 N(0x02C2, "Keyboard Key Type", 0, 0) 553 N(0x02C3, "Keyboard Physical Layout", 0, 0) 554 N(0x02C4, "Vendor-Specific Keyboard Physical Layout", 0, 0) 555 N(0x02C5, "Keyboard IETF Language Tag Index", 0, 0) 556 N(0x02C6, "Implemented Keyboard Input Assist Controls", 0, 0) 557 N(0x02C7, "Keyboard Input Assist Previous", 0, 0) 558 N(0x02C8, "Keyboard Input Assist Next", 0, 0) 559 N(0x02C9, "Keyboard Input Assist Previous Group", 0, 0) 560 N(0x02CA, "Keyboard Input Assist Next Group", 0, 0) 561 N(0x02CB, "Keyboard Input Assist Accept", 0, 0) 562 N(0x02CC, "Keyboard Input Assist Cancel", 0, 0) 563 /* 0x02CD-0x02CF Reserved */ 564 N(0x02D0, "Privacy Screen Toggle", 0, 0) 565 N(0x02D1, "Privacy Screen Level Decrement", 0, 0) 566 N(0x02D2, "Privacy Screen Level Increment", 0, 0) 567 N(0x02D3, "Privacy Screen Level Minimum", 0, 0) 568 N(0x02D4, "Privacy Screen Level Maximum", 0, 0) 569 /* 0x02D5-0x04FF Reserved */ 570 N(0x0500, "Contact Edited", 0, 0) 571 N(0x0501, "Contact Added", 0, 0) 572 N(0x0502, "Contact Record Active", 0, 0) 573 N(0x0503, "Contact Index", 0, 0) 574 N(0x0504, "Contact Nickname", 0, 0) 575 N(0x0505, "Contact First Name", 0, 0) 576 N(0x0506, "Contact Last Name", 0, 0) 577 N(0x0507, "Contact Full Name", 0, 0) 578 N(0x0508, "Contact Phone Number Personal", 0, 0) 579 N(0x0509, "Contact Phone Number Business", 0, 0) 580 N(0x050A, "Contact Phone Number Mobile", 0, 0) 581 N(0x050B, "Contact Phone Number Pager", 0, 0) 582 N(0x050C, "Contact Phone Number Fax", 0, 0) 583 N(0x050D, "Contact Phone Number Other", 0, 0) 584 N(0x050E, "Contact Email Personal", 0, 0) 585 N(0x050F, "Contact Email Business", 0, 0) 586 N(0x0510, "Contact Email Other", 0, 0) 587 N(0x0511, "Contact Email Main", 0, 0) 588 N(0x0512, "Contact Speed Dial Number", 0, 0) 589 N(0x0513, "Contact Status Flag", 0, 0) 590 N(0x0514, "Contact Misc.", 0, 0) 591 /* 0x0515-0xFFFF Reserved */ 592 #undef Y 593 #undef N 594 }; 595 596 void hidcc_attach_wskbd(struct hidcc *); 597 int hidcc_enable(void *, int); 598 void hidcc_set_leds(void *, int); 599 int hidcc_ioctl(void *, u_long, caddr_t, int, struct proc *); 600 601 int hidcc_parse(struct hidcc *, void *, int, int, int); 602 int hidcc_parse_array(struct hidcc *, const struct hid_item *); 603 int hidcc_is_array(const struct hid_item *); 604 int hidcc_add_key(struct hidcc *, int32_t, u_int); 605 int hidcc_add_key_volume(struct hidcc *, const struct hid_item *, uint32_t, 606 u_int); 607 int hidcc_bit_to_sym(struct hidcc *, u_int, const struct hidcc_keysym **); 608 int hidcc_usage_to_sym(int32_t, const struct hidcc_keysym **); 609 int hidcc_bits_to_int(uint8_t *, u_int, int32_t *); 610 int hidcc_bits_to_volume(struct hidcc *, uint8_t *, int, u_int *); 611 int hidcc_intr_slice(struct hidcc *, uint8_t *, uint8_t *, int *); 612 void hidcc_input(struct hidcc *, u_int, int); 613 void hidcc_rawinput(struct hidcc *, u_char, int); 614 int hidcc_setbits(struct hidcc *, uint8_t *, int, u_int *); 615 616 /* 617 * Returns non-zero if the given report ID has at least one Consumer Control 618 * usage. 619 */ 620 int 621 hidcc_match(void *desc, int descsiz, uint8_t repid) 622 { 623 struct hid_item hi; 624 struct hid_data *hd; 625 int32_t maxusage = 0; 626 627 hd = hid_start_parse(desc, descsiz, hid_input); 628 while (hid_get_item(hd, &hi)) { 629 if (hi.report_ID == repid && 630 hi.kind == hid_input && 631 HID_GET_USAGE_PAGE(hi.usage) == HUP_CONSUMER) { 632 if (HID_GET_USAGE(hi.usage_maximum) > maxusage) 633 maxusage = HID_GET_USAGE(hi.usage_maximum); 634 else if (HID_GET_USAGE(hi.usage) > maxusage) 635 maxusage = HID_GET_USAGE(hi.usage); 636 } 637 } 638 hid_end_parse(hd); 639 return maxusage > 0; 640 } 641 642 struct hidcc * 643 hidcc_attach(const struct hidcc_attach_arg *hca) 644 { 645 struct hidcc *sc; 646 int error; 647 648 sc = malloc(sizeof(*sc), M_USBDEV, M_WAITOK | M_ZERO); 649 sc->sc_dev = hca->device; 650 sc->sc_mode = WSKBD_TRANSLATED; 651 sc->sc_last_translate = -1; 652 sc->sc_enable = hca->enable; 653 sc->sc_arg = hca->arg; 654 655 error = hidcc_parse(sc, hca->desc, hca->descsiz, hca->repid, 656 hca->isize); 657 if (error) { 658 printf(": hid error %d\n", error); 659 free(sc, M_USBDEV, sizeof(*sc)); 660 return NULL; 661 } 662 663 printf(": %d usage%s, %d key%s, %s\n", 664 sc->sc_nusages, sc->sc_nusages == 1 ? "" : "s", 665 sc->sc_maplen / 2, sc->sc_maplen / 2 == 1 ? "" : "s", 666 sc->sc_isarray ? "array" : "enum"); 667 668 /* Cannot load an empty map. */ 669 if (sc->sc_maplen > 0) 670 hidcc_attach_wskbd(sc); 671 672 return sc; 673 } 674 675 int 676 hidcc_detach(struct hidcc *sc, int flags) 677 { 678 int error = 0; 679 680 if (sc->sc_wskbddev != NULL) 681 error = config_detach(sc->sc_wskbddev, flags); 682 free(sc->sc_input.i_buf, M_USBDEV, sc->sc_input.i_bufsiz); 683 free(sc->sc_map, M_USBDEV, sc->sc_mapsiz * sizeof(*sc->sc_map)); 684 free(sc->sc_raw, M_USBDEV, sc->sc_rawsiz * sizeof(*sc->sc_raw)); 685 free(sc, M_USBDEV, sizeof(*sc)); 686 return error; 687 } 688 689 void 690 hidcc_intr(struct hidcc *sc, void *data, u_int len) 691 { 692 const struct hidcc_keysym *ks; 693 uint8_t *buf = sc->sc_input.i_buf; 694 int raw = sc->sc_mode == WSKBD_RAW; 695 int error; 696 u_int bit = 0; 697 698 hidcc_dump(sc, __func__, data, len); 699 700 if (len > sc->sc_input.i_bufsiz) 701 len = sc->sc_input.i_bufsiz; 702 error = hidcc_intr_slice(sc, data, buf, &len); 703 if (error) { 704 DPRINTF("%s: slice failure: error %d\n", DEVNAME(sc), error); 705 return; 706 } 707 708 /* Dump the buffer again after slicing. */ 709 hidcc_dump(sc, __func__, buf, len); 710 711 if (hidcc_setbits(sc, buf, len, &bit)) { 712 /* All zeroes, assume key up event. */ 713 if (raw) { 714 if (sc->sc_last_raw != 0) { 715 hidcc_rawinput(sc, sc->sc_last_raw, 1); 716 sc->sc_last_raw = 0; 717 } 718 } else { 719 if (sc->sc_last_translate != -1) { 720 hidcc_input(sc, sc->sc_last_translate, 1); 721 sc->sc_last_translate = -1; 722 } 723 } 724 return; 725 } else if (sc->sc_isarray) { 726 int32_t usage; 727 728 if (hidcc_bits_to_int(buf, len, &usage) || 729 hidcc_usage_to_sym(usage, &ks)) 730 goto unknown; 731 bit = ks->ks_usage; 732 } else if (raw) { 733 if (hidcc_bit_to_sym(sc, bit, &ks)) 734 goto unknown; 735 } 736 737 if (raw) { 738 hidcc_rawinput(sc, ks->ks_raw, 0); 739 sc->sc_last_raw = ks->ks_raw; 740 /* 741 * Feed both raw and translating input for keys that have both 742 * defined. This is only the case for volume related keys. 743 */ 744 if (ks->ks_key == 0) 745 return; 746 } 747 748 hidcc_input(sc, bit, 0); 749 if (!raw) 750 sc->sc_last_translate = bit; 751 return; 752 753 unknown: 754 DPRINTF("%s: unknown key: bit %d\n", DEVNAME(sc), bit); 755 } 756 757 void 758 hidcc_attach_wskbd(struct hidcc *sc) 759 { 760 static const struct wskbd_accessops accessops = { 761 .enable = hidcc_enable, 762 .set_leds = hidcc_set_leds, 763 .ioctl = hidcc_ioctl, 764 }; 765 struct wskbddev_attach_args a = { 766 .console = 0, 767 .keymap = &sc->sc_keymap, 768 .accessops = &accessops, 769 .accesscookie = sc, 770 .audiocookie = NULL, /* XXX audio_cookie */ 771 }; 772 773 sc->sc_keydesc[0].name = KB_US; 774 sc->sc_keydesc[0].base = 0; 775 sc->sc_keydesc[0].map_size = sc->sc_maplen; 776 sc->sc_keydesc[0].map = sc->sc_map; 777 sc->sc_keymap.keydesc = sc->sc_keydesc; 778 sc->sc_keymap.layout = KB_US | KB_NOENCODING; 779 sc->sc_wskbddev = config_found(sc->sc_dev, &a, wskbddevprint); 780 } 781 782 int 783 hidcc_enable(void *v, int on) 784 { 785 struct hidcc *sc = (struct hidcc *)v; 786 787 return sc->sc_enable(sc->sc_arg, on); 788 } 789 790 void 791 hidcc_set_leds(void *v, int leds) 792 { 793 } 794 795 int 796 hidcc_ioctl(void *v, u_long cmd, caddr_t data, int flag, struct proc *p) 797 { 798 switch (cmd) { 799 /* wsconsctl(8) stub */ 800 case WSKBDIO_GTYPE: 801 *(int *)data = WSKBD_TYPE_USB; 802 return 0; 803 804 /* wsconsctl(8) stub */ 805 case WSKBDIO_GETLEDS: 806 *(int *)data = 0; 807 return 0; 808 809 #ifdef WSDISPLAY_COMPAT_RAWKBD 810 case WSKBDIO_SETMODE: { 811 struct hidcc *sc = (struct hidcc *)v; 812 813 sc->sc_mode = *(int *)data; 814 return 0; 815 } 816 #endif 817 } 818 819 return -1; 820 } 821 822 /* 823 * Parse the HID report and construct a mapping between the bits in the input 824 * report and the corresponding pressed key. 825 */ 826 int 827 hidcc_parse(struct hidcc *sc, void *desc, int descsiz, int repid, int isize) 828 { 829 enum { OFFSET, LENGTH } istate = OFFSET; 830 struct hid_item hi; 831 struct hid_data *hd; 832 u_int bit = 0; 833 int error = 0; 834 int nsyms = nitems(hidcc_keysyms); 835 int nbits; 836 837 /* 838 * The size of the input report is expressed in bytes where each bit in 839 * turn represents a pressed key. It's likely that the number of keys is 840 * less than this generous estimate. 841 */ 842 nbits = isize * 8; 843 if (nbits == 0) 844 return ENXIO; 845 846 /* Allocate buffer used to slice interrupt data. */ 847 sc->sc_input.i_bufsiz = isize; 848 sc->sc_input.i_buf = malloc(sc->sc_input.i_bufsiz, M_USBDEV, M_WAITOK); 849 850 /* 851 * Create mapping between each input bit and the corresponding usage, 852 * used in translating mode. Two entries are needed per bit in order 853 * construct a mapping. Note that at most all known usages as given by 854 * hidcc_keysyms can be inserted into this map. 855 */ 856 sc->sc_mapsiz = nsyms * 2; 857 sc->sc_map = mallocarray(nsyms, 2 * sizeof(*sc->sc_map), M_USBDEV, 858 M_WAITOK | M_ZERO); 859 860 /* 861 * Create mapping between each input bit and the corresponding usage, 862 * used in raw mode. 863 */ 864 sc->sc_rawsiz = nbits; 865 sc->sc_raw = mallocarray(nbits, sizeof(*sc->sc_raw), M_USBDEV, 866 M_WAITOK | M_ZERO); 867 868 hd = hid_start_parse(desc, descsiz, hid_input); 869 while (hid_get_item(hd, &hi)) { 870 uint32_t off; 871 int32_t usage; 872 873 if (hi.report_ID != repid || hi.kind != hid_input) 874 continue; 875 876 if (HID_GET_USAGE_PAGE(hi.usage) != HUP_CONSUMER) { 877 uint32_t len = hi.loc.size * hi.loc.count; 878 879 switch (istate) { 880 case OFFSET: 881 sc->sc_input.i_off = hi.loc.pos + len; 882 break; 883 case LENGTH: 884 /* Constant padding. */ 885 if (hi.flags & HIO_CONST) 886 sc->sc_input.i_len += len; 887 break; 888 } 889 continue; 890 } 891 892 /* Signal that the input offset is reached. */ 893 istate = LENGTH; 894 off = sc->sc_input.i_len; 895 sc->sc_input.i_len += hi.loc.size * hi.loc.count; 896 897 /* 898 * The usages could be expressed as an array instead of 899 * enumerating all supported ones. 900 */ 901 if (hidcc_is_array(&hi)) { 902 error = hidcc_parse_array(sc, &hi); 903 break; 904 } 905 906 usage = HID_GET_USAGE(hi.usage); 907 if (usage == HUC_VOLUME) 908 error = hidcc_add_key_volume(sc, &hi, off, bit); 909 else 910 error = hidcc_add_key(sc, usage, bit); 911 if (error) 912 break; 913 sc->sc_nusages++; 914 bit += hi.loc.size * hi.loc.count; 915 } 916 hid_end_parse(hd); 917 918 DPRINTF("%s: input: off %d, len %d\n", DEVNAME(sc), 919 sc->sc_input.i_off, sc->sc_input.i_len); 920 921 return error; 922 } 923 924 int 925 hidcc_parse_array(struct hidcc *sc, const struct hid_item *hi) 926 { 927 int32_t max, min, usage; 928 929 min = HID_GET_USAGE(hi->usage_minimum); 930 max = HID_GET_USAGE(hi->usage_maximum); 931 932 sc->sc_nusages = (max - min) + 1; 933 sc->sc_isarray = 1; 934 935 for (usage = min; usage <= max; usage++) { 936 int error; 937 938 error = hidcc_add_key(sc, usage, 0); 939 if (error) 940 return error; 941 } 942 943 return 0; 944 } 945 946 int 947 hidcc_is_array(const struct hid_item *hi) 948 { 949 int32_t max, min; 950 951 min = HID_GET_USAGE(hi->usage_minimum); 952 max = HID_GET_USAGE(hi->usage_maximum); 953 return min >= 0 && max > 0 && min < max; 954 } 955 956 int 957 hidcc_add_key(struct hidcc *sc, int32_t usage, u_int bit) 958 { 959 const struct hidcc_keysym *ks; 960 961 if (hidcc_usage_to_sym(usage, &ks)) 962 return 0; 963 964 if (sc->sc_maplen + 2 > sc->sc_mapsiz) 965 return ENOMEM; 966 sc->sc_map[sc->sc_maplen++] = KS_KEYCODE(sc->sc_isarray ? usage : bit); 967 sc->sc_map[sc->sc_maplen++] = ks->ks_key; 968 969 if (!sc->sc_isarray) { 970 if (bit >= sc->sc_rawsiz) 971 return ENOMEM; 972 sc->sc_raw[bit] = ks; 973 } 974 975 DPRINTF("%s: bit %d, usage \"%s\"\n", DEVNAME(sc), 976 bit, ks->ks_name); 977 return 0; 978 } 979 980 /* 981 * Add key mappings for the volume usage which differs compared to the volume 982 * increment/decrement usages in which each volume change direction is 983 * represented using a distinct usage. The volume usage instead uses bits of the 984 * interrupt buffer to represent the wanted volume. The same bits should be 985 * within the bounds given by the logical min/max associated with the HID item. 986 */ 987 int 988 hidcc_add_key_volume(struct hidcc *sc, const struct hid_item *hi, 989 uint32_t off, u_int bit) 990 { 991 uint32_t len; 992 int error; 993 994 /* 995 * Since the volume usage is internally represented using two key 996 * mappings, make sure enough bits are available to avoid any ambiguity. 997 */ 998 len = hi->loc.size * hi->loc.count; 999 if (len <= 1) 1000 return 1; 1001 1002 sc->sc_volume.v_inc = bit; 1003 sc->sc_volume.v_dec = bit + 1; 1004 sc->sc_volume.v_off = off; 1005 sc->sc_volume.v_len = len; 1006 1007 DPRINTF("%s: inc %d, dec %d, off %d, len %d, min %d, max %d\n", 1008 DEVNAME(sc), sc->sc_volume.v_inc, sc->sc_volume.v_dec, 1009 sc->sc_volume.v_off, sc->sc_volume.v_len, 1010 hi->logical_minimum, hi->logical_maximum); 1011 1012 error = hidcc_add_key(sc, HUC_VOL_INC, sc->sc_volume.v_inc); 1013 if (error) 1014 return error; 1015 error = hidcc_add_key(sc, HUC_VOL_DEC, sc->sc_volume.v_dec); 1016 if (error) 1017 return error; 1018 return 0; 1019 } 1020 1021 int 1022 hidcc_bit_to_sym(struct hidcc *sc, u_int bit, const struct hidcc_keysym **ks) 1023 { 1024 if (bit >= sc->sc_rawsiz || sc->sc_raw[bit] == NULL) 1025 return 1; 1026 *ks = sc->sc_raw[bit]; 1027 return 0; 1028 } 1029 1030 int 1031 hidcc_usage_to_sym(int32_t usage, const struct hidcc_keysym **ks) 1032 { 1033 int len = nitems(hidcc_keysyms); 1034 int i; 1035 1036 for (i = 0; i < len; i++) { 1037 if (hidcc_keysyms[i].ks_usage == usage) { 1038 *ks = &hidcc_keysyms[i]; 1039 return 0; 1040 } 1041 } 1042 return 1; 1043 } 1044 1045 int 1046 hidcc_bits_to_int(uint8_t *buf, u_int buflen, int32_t *usage) 1047 { 1048 int32_t x = 0; 1049 int i; 1050 1051 if (buflen == 0 || buflen > sizeof(*usage)) 1052 return 1; 1053 1054 for (i = buflen - 1; i >= 0; i--) { 1055 x |= buf[i]; 1056 if (i > 0) 1057 x <<= 8; 1058 } 1059 *usage = x; 1060 return 0; 1061 } 1062 1063 int 1064 hidcc_bits_to_volume(struct hidcc *sc, uint8_t *buf, int buflen, u_int *bit) 1065 { 1066 uint32_t vlen = sc->sc_volume.v_len; 1067 uint32_t voff = sc->sc_volume.v_off; 1068 int32_t vol; 1069 int sign; 1070 1071 if (vlen == 0) 1072 return 1; 1073 if (hidcc_bits_to_int(buf, buflen, &vol)) 1074 return 1; 1075 vol = (vol >> voff) & ((1 << vlen) - 1); 1076 if (vol == 0) 1077 return 1; 1078 1079 /* 1080 * Interpret the volume as a relative change by only looking at the sign 1081 * in order to determine the change direction. 1082 */ 1083 sign = vol & (1 << (vlen - 1)) ? -1 : 1; 1084 if (sign < 0) 1085 vol = (1 << vlen) - vol; 1086 vol *= sign; 1087 if (vol > 0) 1088 *bit = sc->sc_volume.v_inc; 1089 else 1090 *bit = sc->sc_volume.v_dec; 1091 return 0; 1092 } 1093 1094 int 1095 hidcc_intr_slice(struct hidcc *sc, uint8_t *src, uint8_t *dst, int *len) 1096 { 1097 int ilen = sc->sc_input.i_len; 1098 int ioff = sc->sc_input.i_off; 1099 int di, si; 1100 int maxlen = *len; 1101 1102 if (maxlen == 0) 1103 return 1; 1104 1105 memset(dst, 0, maxlen); 1106 si = ioff; 1107 di = 0; 1108 for (; ilen > 0; ilen--) { 1109 int db, sb; 1110 1111 sb = si / 8; 1112 db = di / 8; 1113 if (sb >= maxlen || db >= maxlen) 1114 return 1; 1115 1116 if (src[sb] & (1 << (si % 8))) 1117 dst[db] |= 1 << (di % 8); 1118 si++; 1119 di++; 1120 } 1121 1122 *len = (sc->sc_input.i_len + 7) / 8; 1123 return 0; 1124 } 1125 1126 void 1127 hidcc_input(struct hidcc *sc, u_int bit, int release) 1128 { 1129 int s; 1130 1131 s = spltty(); 1132 wskbd_input(sc->sc_wskbddev, 1133 release ? WSCONS_EVENT_KEY_UP : WSCONS_EVENT_KEY_DOWN, bit); 1134 splx(s); 1135 } 1136 1137 void 1138 hidcc_rawinput(struct hidcc *sc, u_char c, int release) 1139 { 1140 #ifdef WSDISPLAY_COMPAT_RAWKBD 1141 u_char buf[2]; 1142 int len = 0; 1143 int s; 1144 1145 if (c & 0x80) 1146 buf[len++] = 0xe0; 1147 buf[len++] = c & 0x7f; 1148 if (release) 1149 buf[len - 1] |= 0x80; 1150 1151 s = spltty(); 1152 wskbd_rawinput(sc->sc_wskbddev, buf, len); 1153 splx(s); 1154 #endif 1155 } 1156 1157 int 1158 hidcc_setbits(struct hidcc *sc, uint8_t *data, int len, u_int *bit) 1159 { 1160 int i, j; 1161 1162 if (hidcc_bits_to_volume(sc, data, len, bit) == 0) 1163 return 0; 1164 1165 for (i = 0; i < len; i++) { 1166 if (data[i] == 0) 1167 continue; 1168 1169 for (j = 0; j < 8; j++) { 1170 if (data[i] & (1 << j)) { 1171 *bit = (i * 8) + j; 1172 return 0; 1173 } 1174 } 1175 } 1176 1177 return 1; 1178 } 1179 1180 #ifdef HIDCC_DEBUG 1181 1182 void 1183 hidcc_dump(struct hidcc *sc, const char *prefix, uint8_t *data, u_int len) 1184 { 1185 u_int i; 1186 1187 if (hidcc_debug == 0) 1188 return; 1189 1190 printf("%s: %s:", DEVNAME(sc), prefix); 1191 for (i = 0; i < len; i++) 1192 printf(" %02x", data[i]); 1193 printf("\n"); 1194 } 1195 1196 #endif
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