/* * kbd.c */ /*- * SPDX-License-Identifier: BSD-2-Clause * * Copyright (c) 2006 Maksim Yevmenkin <m_evmenkin@yahoo.com> * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $Id: kbd.c,v 1.4 2006/09/07 21:06:53 max Exp $ */ #include <sys/consio.h> #include <sys/ioctl.h> #include <sys/kbio.h> #include <sys/param.h> #include <sys/queue.h> #include <sys/wait.h> #include <assert.h> #define L2CAP_SOCKET_CHECKED #include <bluetooth.h> #include <dev/usb/usb.h> #include <dev/usb/usbhid.h> #include <dev/vkbd/vkbd_var.h> #include <errno.h> #include <fcntl.h> #include <limits.h> #include <stdarg.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <syslog.h> #include <unistd.h> #include <usbhid.h> #include "bthid_config.h" #include "bthidd.h" #include "btuinput.h" #include "kbd.h" static void kbd_write(bitstr_t *m, int32_t fb, int32_t make, int32_t fd); static int32_t kbd_xlate(int32_t code, int32_t make, int32_t *b, int32_t const *eob); static void uinput_kbd_write(bitstr_t *m, int32_t fb, int32_t make, int32_t fd); /* * HID code to PS/2 set 1 code translation table. * * http://www.microsoft.com/whdc/device/input/Scancode.mspx * * The table only contains "make" (key pressed) codes. * The "break" (key released) code is generated as "make" | 0x80 */ #define E0PREFIX (1U << 31) #define NOBREAK (1 << 30) #define CODEMASK (~(E0PREFIX|NOBREAK)) static int32_t const x[] = { /*==================================================*/ /* Name HID code Make Break*/ /*==================================================*/ /* No Event 00 */ -1, /* None */ /* Overrun Error 01 */ NOBREAK|0xFF, /* None */ /* POST Fail 02 */ NOBREAK|0xFC, /* None */ /* ErrorUndefined 03 */ -1, /* Unassigned */ /* a A 04 */ 0x1E, /* 9E */ /* b B 05 */ 0x30, /* B0 */ /* c C 06 */ 0x2E, /* AE */ /* d D 07 */ 0x20, /* A0 */ /* e E 08 */ 0x12, /* 92 */ /* f F 09 */ 0x21, /* A1 */ /* g G 0A */ 0x22, /* A2 */ /* h H 0B */ 0x23, /* A3 */ /* i I 0C */ 0x17, /* 97 */ /* j J 0D */ 0x24, /* A4 */ /* k K 0E */ 0x25, /* A5 */ /* l L 0F */ 0x26, /* A6 */ /* m M 10 */ 0x32, /* B2 */ /* n N 11 */ 0x31, /* B1 */ /* o O 12 */ 0x18, /* 98 */ /* p P 13 */ 0x19, /* 99 */ /* q Q 14 */ 0x10, /* 90 */ /* r R 15 */ 0x13, /* 93 */ /* s S 16 */ 0x1F, /* 9F */ /* t T 17 */ 0x14, /* 94 */ /* u U 18 */ 0x16, /* 96 */ /* v V 19 */ 0x2F, /* AF */ /* w W 1A */ 0x11, /* 91 */ /* x X 1B */ 0x2D, /* AD */ /* y Y 1C */ 0x15, /* 95 */ /* z Z 1D */ 0x2C, /* AC */ /* 1 ! 1E */ 0x02, /* 82 */ /* 2 @ 1F */ 0x03, /* 83 */ /* 3 # 20 */ 0x04, /* 84 */ /* 4 $ 21 */ 0x05, /* 85 */ /* 5 % 22 */ 0x06, /* 86 */ /* 6 ^ 23 */ 0x07, /* 87 */ /* 7 & 24 */ 0x08, /* 88 */ /* 8 * 25 */ 0x09, /* 89 */ /* 9 ( 26 */ 0x0A, /* 8A */ /* 0 ) 27 */ 0x0B, /* 8B */ /* Return 28 */ 0x1C, /* 9C */ /* Escape 29 */ 0x01, /* 81 */ /* Backspace 2A */ 0x0E, /* 8E */ /* Tab 2B */ 0x0F, /* 8F */ /* Space 2C */ 0x39, /* B9 */ /* - _ 2D */ 0x0C, /* 8C */ /* = + 2E */ 0x0D, /* 8D */ /* [ { 2F */ 0x1A, /* 9A */ /* ] } 30 */ 0x1B, /* 9B */ /* \ | 31 */ 0x2B, /* AB */ /* Europe 1 32 */ 0x2B, /* AB */ /* ; : 33 */ 0x27, /* A7 */ /* " ' 34 */ 0x28, /* A8 */ /* ` ~ 35 */ 0x29, /* A9 */ /* comma < 36 */ 0x33, /* B3 */ /* . > 37 */ 0x34, /* B4 */ /* / ? 38 */ 0x35, /* B5 */ /* Caps Lock 39 */ 0x3A, /* BA */ /* F1 3A */ 0x3B, /* BB */ /* F2 3B */ 0x3C, /* BC */ /* F3 3C */ 0x3D, /* BD */ /* F4 3D */ 0x3E, /* BE */ /* F5 3E */ 0x3F, /* BF */ /* F6 3F */ 0x40, /* C0 */ /* F7 40 */ 0x41, /* C1 */ /* F8 41 */ 0x42, /* C2 */ /* F9 42 */ 0x43, /* C3 */ /* F10 43 */ 0x44, /* C4 */ /* F11 44 */ 0x57, /* D7 */ /* F12 45 */ 0x58, /* D8 */ /* Print Screen 46 */ E0PREFIX|0x37, /* E0 B7 */ /* Scroll Lock 47 */ 0x46, /* C6 */ #if 0 /* Break (Ctrl-Pause) 48 */ E0 46 E0 C6, /* None */ /* Pause 48 */ E1 1D 45 E1 9D C5, /* None */ #else /* Break (Ctrl-Pause)/Pause 48 */ NOBREAK /* Special case */, /* None */ #endif /* Insert 49 */ E0PREFIX|0x52, /* E0 D2 */ /* Home 4A */ E0PREFIX|0x47, /* E0 C7 */ /* Page Up 4B */ E0PREFIX|0x49, /* E0 C9 */ /* Delete 4C */ E0PREFIX|0x53, /* E0 D3 */ /* End 4D */ E0PREFIX|0x4F, /* E0 CF */ /* Page Down 4E */ E0PREFIX|0x51, /* E0 D1 */ /* Right Arrow 4F */ E0PREFIX|0x4D, /* E0 CD */ /* Left Arrow 50 */ E0PREFIX|0x4B, /* E0 CB */ /* Down Arrow 51 */ E0PREFIX|0x50, /* E0 D0 */ /* Up Arrow 52 */ E0PREFIX|0x48, /* E0 C8 */ /* Num Lock 53 */ 0x45, /* C5 */ /* Keypad / 54 */ E0PREFIX|0x35, /* E0 B5 */ /* Keypad * 55 */ 0x37, /* B7 */ /* Keypad - 56 */ 0x4A, /* CA */ /* Keypad + 57 */ 0x4E, /* CE */ /* Keypad Enter 58 */ E0PREFIX|0x1C, /* E0 9C */ /* Keypad 1 End 59 */ 0x4F, /* CF */ /* Keypad 2 Down 5A */ 0x50, /* D0 */ /* Keypad 3 PageDn 5B */ 0x51, /* D1 */ /* Keypad 4 Left 5C */ 0x4B, /* CB */ /* Keypad 5 5D */ 0x4C, /* CC */ /* Keypad 6 Right 5E */ 0x4D, /* CD */ /* Keypad 7 Home 5F */ 0x47, /* C7 */ /* Keypad 8 Up 60 */ 0x48, /* C8 */ /* Keypad 9 PageUp 61 */ 0x49, /* C9 */ /* Keypad 0 Insert 62 */ 0x52, /* D2 */ /* Keypad . Delete 63 */ 0x53, /* D3 */ /* Europe 2 64 */ 0x56, /* D6 */ /* App 65 */ E0PREFIX|0x5D, /* E0 DD */ /* Keyboard Power 66 */ E0PREFIX|0x5E, /* E0 DE */ /* Keypad = 67 */ 0x59, /* D9 */ /* F13 68 */ 0x64, /* E4 */ /* F14 69 */ 0x65, /* E5 */ /* F15 6A */ 0x66, /* E6 */ /* F16 6B */ 0x67, /* E7 */ /* F17 6C */ 0x68, /* E8 */ /* F18 6D */ 0x69, /* E9 */ /* F19 6E */ 0x6A, /* EA */ /* F20 6F */ 0x6B, /* EB */ /* F21 70 */ 0x6C, /* EC */ /* F22 71 */ 0x6D, /* ED */ /* F23 72 */ 0x6E, /* EE */ /* F24 73 */ 0x76, /* F6 */ /* Keyboard Execute 74 */ -1, /* Unassigned */ /* Keyboard Help 75 */ -1, /* Unassigned */ /* Keyboard Menu 76 */ -1, /* Unassigned */ /* Keyboard Select 77 */ -1, /* Unassigned */ /* Keyboard Stop 78 */ -1, /* Unassigned */ /* Keyboard Again 79 */ -1, /* Unassigned */ /* Keyboard Undo 7A */ -1, /* Unassigned */ /* Keyboard Cut 7B */ -1, /* Unassigned */ /* Keyboard Copy 7C */ -1, /* Unassigned */ /* Keyboard Paste 7D */ -1, /* Unassigned */ /* Keyboard Find 7E */ -1, /* Unassigned */ /* Keyboard Mute 7F */ -1, /* Unassigned */ /* Keyboard Volume Up 80 */ -1, /* Unassigned */ /* Keyboard Volume Dn 81 */ -1, /* Unassigned */ /* Keyboard Locking Caps Lock 82 */ -1, /* Unassigned */ /* Keyboard Locking Num Lock 83 */ -1, /* Unassigned */ /* Keyboard Locking Scroll Lock 84 */ -1, /* Unassigned */ /* Keypad comma 85 */ 0x7E, /* FE */ /* Keyboard Equal Sign 86 */ -1, /* Unassigned */ /* Keyboard Int'l 1 87 */ 0x73, /* F3 */ /* Keyboard Int'l 2 88 */ 0x70, /* F0 */ /* Keyboard Int'l 2 89 */ 0x7D, /* FD */ /* Keyboard Int'l 4 8A */ 0x79, /* F9 */ /* Keyboard Int'l 5 8B */ 0x7B, /* FB */ /* Keyboard Int'l 6 8C */ 0x5C, /* DC */ /* Keyboard Int'l 7 8D */ -1, /* Unassigned */ /* Keyboard Int'l 8 8E */ -1, /* Unassigned */ /* Keyboard Int'l 9 8F */ -1, /* Unassigned */ /* Keyboard Lang 1 90 */ 0x71, /* Kana */ /* Keyboard Lang 2 91 */ 0x72, /* Eisu */ /* Keyboard Lang 3 92 */ 0x78, /* F8 */ /* Keyboard Lang 4 93 */ 0x77, /* F7 */ /* Keyboard Lang 5 94 */ 0x76, /* F6 */ /* Keyboard Lang 6 95 */ -1, /* Unassigned */ /* Keyboard Lang 7 96 */ -1, /* Unassigned */ /* Keyboard Lang 8 97 */ -1, /* Unassigned */ /* Keyboard Lang 9 98 */ -1, /* Unassigned */ /* Keyboard Alternate Erase 99 */ -1, /* Unassigned */ /* Keyboard SysReq/Attention 9A */ -1, /* Unassigned */ /* Keyboard Cancel 9B */ -1, /* Unassigned */ /* Keyboard Clear 9C */ -1, /* Unassigned */ /* Keyboard Prior 9D */ -1, /* Unassigned */ /* Keyboard Return 9E */ -1, /* Unassigned */ /* Keyboard Separator 9F */ -1, /* Unassigned */ /* Keyboard Out A0 */ -1, /* Unassigned */ /* Keyboard Oper A1 */ -1, /* Unassigned */ /* Keyboard Clear/Again A2 */ -1, /* Unassigned */ /* Keyboard CrSel/Props A3 */ -1, /* Unassigned */ /* Keyboard ExSel A4 */ -1, /* Unassigned */ /* Reserved A5 */ -1, /* Reserved */ /* Reserved A6 */ -1, /* Reserved */ /* Reserved A7 */ -1, /* Reserved */ /* Reserved A8 */ -1, /* Reserved */ /* Reserved A9 */ -1, /* Reserved */ /* Reserved AA */ -1, /* Reserved */ /* Reserved AB */ -1, /* Reserved */ /* Reserved AC */ -1, /* Reserved */ /* Reserved AD */ -1, /* Reserved */ /* Reserved AE */ -1, /* Reserved */ /* Reserved AF */ -1, /* Reserved */ /* Reserved B0 */ -1, /* Reserved */ /* Reserved B1 */ -1, /* Reserved */ /* Reserved B2 */ -1, /* Reserved */ /* Reserved B3 */ -1, /* Reserved */ /* Reserved B4 */ -1, /* Reserved */ /* Reserved B5 */ -1, /* Reserved */ /* Reserved B6 */ -1, /* Reserved */ /* Reserved B7 */ -1, /* Reserved */ /* Reserved B8 */ -1, /* Reserved */ /* Reserved B9 */ -1, /* Reserved */ /* Reserved BA */ -1, /* Reserved */ /* Reserved BB */ -1, /* Reserved */ /* Reserved BC */ -1, /* Reserved */ /* Reserved BD */ -1, /* Reserved */ /* Reserved BE */ -1, /* Reserved */ /* Reserved BF */ -1, /* Reserved */ /* Reserved C0 */ -1, /* Reserved */ /* Reserved C1 */ -1, /* Reserved */ /* Reserved C2 */ -1, /* Reserved */ /* Reserved C3 */ -1, /* Reserved */ /* Reserved C4 */ -1, /* Reserved */ /* Reserved C5 */ -1, /* Reserved */ /* Reserved C6 */ -1, /* Reserved */ /* Reserved C7 */ -1, /* Reserved */ /* Reserved C8 */ -1, /* Reserved */ /* Reserved C9 */ -1, /* Reserved */ /* Reserved CA */ -1, /* Reserved */ /* Reserved CB */ -1, /* Reserved */ /* Reserved CC */ -1, /* Reserved */ /* Reserved CD */ -1, /* Reserved */ /* Reserved CE */ -1, /* Reserved */ /* Reserved CF */ -1, /* Reserved */ /* Reserved D0 */ -1, /* Reserved */ /* Reserved D1 */ -1, /* Reserved */ /* Reserved D2 */ -1, /* Reserved */ /* Reserved D3 */ -1, /* Reserved */ /* Reserved D4 */ -1, /* Reserved */ /* Reserved D5 */ -1, /* Reserved */ /* Reserved D6 */ -1, /* Reserved */ /* Reserved D7 */ -1, /* Reserved */ /* Reserved D8 */ -1, /* Reserved */ /* Reserved D9 */ -1, /* Reserved */ /* Reserved DA */ -1, /* Reserved */ /* Reserved DB */ -1, /* Reserved */ /* Reserved DC */ -1, /* Reserved */ /* Reserved DD */ -1, /* Reserved */ /* Reserved DE */ -1, /* Reserved */ /* Reserved DF */ -1, /* Reserved */ /* Left Control E0 */ 0x1D, /* 9D */ /* Left Shift E1 */ 0x2A, /* AA */ /* Left Alt E2 */ 0x38, /* B8 */ /* Left GUI E3 */ E0PREFIX|0x5B, /* E0 DB */ /* Right Control E4 */ E0PREFIX|0x1D, /* E0 9D */ /* Right Shift E5 */ 0x36, /* B6 */ /* Right Alt E6 */ E0PREFIX|0x38, /* E0 B8 */ /* Right GUI E7 */ E0PREFIX|0x5C /* E0 DC */ }; #define xsize (int32_t)nitems(x) /* * Get a max HID keycode (aligned) */ int32_t kbd_maxkey(void) { return (xsize); } /* * Process keys */ int32_t kbd_process_keys(bthid_session_p s) { bitstr_t bit_decl(diff, xsize); int32_t f1, f2, i; assert(s != NULL); assert(s->srv != NULL); /* Check if the new keys have been pressed */ bit_ffs(s->keys1, xsize, &f1); /* Check if old keys still pressed */ bit_ffs(s->keys2, xsize, &f2); if (f1 == -1) { /* no new key pressed */ if (f2 != -1) { /* release old keys */ kbd_write(s->keys2, f2, 0, s->vkbd); uinput_kbd_write(s->keys2, f2, 0, s->ukbd); memset(s->keys2, 0, bitstr_size(xsize)); } return (0); } if (f2 == -1) { /* no old keys, but new keys pressed */ assert(f1 != -1); memcpy(s->keys2, s->keys1, bitstr_size(xsize)); kbd_write(s->keys1, f1, 1, s->vkbd); uinput_kbd_write(s->keys1, f1, 1, s->ukbd); memset(s->keys1, 0, bitstr_size(xsize)); return (0); } /* new keys got pressed, old keys got released */ memset(diff, 0, bitstr_size(xsize)); for (i = f2; i < xsize; i ++) { if (bit_test(s->keys2, i)) { if (!bit_test(s->keys1, i)) { bit_clear(s->keys2, i); bit_set(diff, i); } } } for (i = f1; i < xsize; i++) { if (bit_test(s->keys1, i)) { if (!bit_test(s->keys2, i)) bit_set(s->keys2, i); else bit_clear(s->keys1, i); } } bit_ffs(diff, xsize, &f2); if (f2 > 0) { kbd_write(diff, f2, 0, s->vkbd); uinput_kbd_write(diff, f2, 0, s->ukbd); } bit_ffs(s->keys1, xsize, &f1); if (f1 > 0) { kbd_write(s->keys1, f1, 1, s->vkbd); uinput_kbd_write(s->keys1, f1, 1, s->ukbd); memset(s->keys1, 0, bitstr_size(xsize)); } return (0); } /* * Translate given keymap and write keyscodes */ void uinput_kbd_write(bitstr_t *m, int32_t fb, int32_t make, int32_t fd) { int32_t i; if (fd >= 0) { for (i = fb; i < xsize; i++) { if (bit_test(m, i)) uinput_rep_key(fd, i, make); } } } /* * Translate given keymap and write keyscodes */ static void kbd_write(bitstr_t *m, int32_t fb, int32_t make, int32_t fd) { int32_t i, *b, *eob, n, buf[64]; b = buf; eob = b + nitems(buf); i = fb; while (i < xsize) { if (bit_test(m, i)) { n = kbd_xlate(i, make, b, eob); if (n == -1) { write(fd, buf, (b - buf) * sizeof(buf[0])); b = buf; continue; } b += n; } i ++; } if (b != buf) write(fd, buf, (b - buf) * sizeof(buf[0])); } /* * Translate HID code into PS/2 code and put codes into buffer b. * Returns the number of codes put in b. Return -1 if buffer has not * enough space. */ #undef PUT #define PUT(c, n, b, eob) \ do { \ if ((b) >= (eob)) \ return (-1); \ *(b) = (c); \ (b) ++; \ (n) ++; \ } while (0) static int32_t kbd_xlate(int32_t code, int32_t make, int32_t *b, int32_t const *eob) { int32_t c, n; n = 0; if (code >= xsize) return (0); /* HID code is not in the table */ /* Handle special case - Pause/Break */ if (code == 0x48) { if (!make) return (0); /* No break code */ #if 0 XXX FIXME if (ctrl_is_pressed) { /* Break (Ctrl-Pause) */ PUT(0xe0, n, b, eob); PUT(0x46, n, b, eob); PUT(0xe0, n, b, eob); PUT(0xc6, n, b, eob); } else { /* Pause */ PUT(0xe1, n, b, eob); PUT(0x1d, n, b, eob); PUT(0x45, n, b, eob); PUT(0xe1, n, b, eob); PUT(0x9d, n, b, eob); PUT(0xc5, n, b, eob); } #endif return (n); } if ((c = x[code]) == -1) return (0); /* HID code translation is not defined */ if (make) { if (c & E0PREFIX) PUT(0xe0, n, b, eob); PUT((c & CODEMASK), n, b, eob); } else if (!(c & NOBREAK)) { if (c & E0PREFIX) PUT(0xe0, n, b, eob); PUT((0x80|(c & CODEMASK)), n, b, eob); } return (n); } /* * Process status change from vkbd(4) */ int32_t kbd_status_changed(bthid_session_p s, uint8_t *data, int32_t len) { vkbd_status_t st; uint8_t found, report_id; hid_device_p hid_device; hid_data_t d; hid_item_t h; uint8_t leds_mask = 0; assert(s != NULL); assert(len == sizeof(vkbd_status_t)); memcpy(&st, data, sizeof(st)); found = 0; report_id = NO_REPORT_ID; hid_device = get_hid_device(&s->bdaddr); assert(hid_device != NULL); data[0] = 0xa2; /* DATA output (HID output report) */ data[1] = 0x00; data[2] = 0x00; for (d = hid_start_parse(hid_device->desc, 1 << hid_output, -1); hid_get_item(d, &h) > 0; ) { if (HID_PAGE(h.usage) == HUP_LEDS) { found++; if (report_id == NO_REPORT_ID) report_id = h.report_ID; else if (h.report_ID != report_id) syslog(LOG_WARNING, "Output HID report IDs " \ "for %s do not match: %d vs. %d. " \ "Please report", bt_ntoa(&s->bdaddr, NULL), h.report_ID, report_id); switch(HID_USAGE(h.usage)) { case 0x01: /* Num Lock LED */ if (st.leds & LED_NUM) hid_set_data(&data[1], &h, 1); leds_mask |= LED_NUM; break; case 0x02: /* Caps Lock LED */ if (st.leds & LED_CAP) hid_set_data(&data[1], &h, 1); leds_mask |= LED_CAP; break; case 0x03: /* Scroll Lock LED */ if (st.leds & LED_SCR) hid_set_data(&data[1], &h, 1); leds_mask |= LED_SCR; break; /* XXX add other LEDs ? */ } } } hid_end_parse(d); if (report_id != NO_REPORT_ID) { data[2] = data[1]; data[1] = report_id; } if (found) write(s->intr, data, (report_id != NO_REPORT_ID) ? 3 : 2); if (found && s->srv->uinput && hid_device->keyboard) uinput_rep_leds(s->ukbd, st.leds, leds_mask); return (0); }
