| 0,0 → 1,349 |
|---|
| /* |
| * Copyright (C) 2001-2004 Jakub Jermar |
| * Copyright (C) 2006 Josef Cejka |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - 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. |
| * - The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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. |
| */ |
| |
| #include <arch/kbd.h> |
| #include <key_buffer.h> |
| #include <ipc.h> |
| |
| #define SPECIAL '?' |
| #define KEY_RELEASE 0x80 |
| |
| /** |
| * These codes read from i8042 data register are silently ignored. |
| */ |
| #define IGNORE_CODE 0x7f |
| |
| #define PRESSED_SHIFT (1<<0) |
| #define PRESSED_CAPSLOCK (1<<1) |
| #define LOCKED_CAPSLOCK (1<<0) |
| |
| /** Scancodes. */ |
| #define SC_ESC 0x01 |
| #define SC_BACKSPACE 0x0e |
| #define SC_LSHIFT 0x2a |
| #define SC_RSHIFT 0x36 |
| #define SC_CAPSLOCK 0x3a |
| #define SC_SPEC_ESCAPE 0xe0 |
| #define SC_LEFTARR 0x4b |
| #define SC_RIGHTARR 0x4d |
| #define SC_UPARR 0x48 |
| #define SC_DOWNARR 0x50 |
| #define SC_DELETE 0x53 |
| #define SC_HOME 0x47 |
| #define SC_END 0x4f |
| |
| static volatile int keyflags; /**< Tracking of multiple keypresses. */ |
| static volatile int lockflags; /**< Tracking of multiple keys lockings. */ |
| |
| /** Primary meaning of scancodes. */ |
| static char sc_primary_map[] = { |
| SPECIAL, /* 0x00 */ |
| SPECIAL, /* 0x01 - Esc */ |
| '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', '=', |
| '\b', /* 0x0e - Backspace */ |
| '\t', 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '[', ']', '\n', |
| SPECIAL, /* 0x1d - LCtrl */ |
| 'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', '\'', |
| '`', |
| SPECIAL, /* 0x2a - LShift */ |
| '\\', |
| 'z', 'x', 'c', 'v', 'b', 'n', 'm', ',', '.', '/', |
| SPECIAL, /* 0x36 - RShift */ |
| '*', |
| SPECIAL, /* 0x38 - LAlt */ |
| ' ', |
| SPECIAL, /* 0x3a - CapsLock */ |
| SPECIAL, /* 0x3b - F1 */ |
| SPECIAL, /* 0x3c - F2 */ |
| SPECIAL, /* 0x3d - F3 */ |
| SPECIAL, /* 0x3e - F4 */ |
| SPECIAL, /* 0x3f - F5 */ |
| SPECIAL, /* 0x40 - F6 */ |
| SPECIAL, /* 0x41 - F7 */ |
| SPECIAL, /* 0x42 - F8 */ |
| SPECIAL, /* 0x43 - F9 */ |
| SPECIAL, /* 0x44 - F10 */ |
| SPECIAL, /* 0x45 - NumLock */ |
| SPECIAL, /* 0x46 - ScrollLock */ |
| '7', '8', '9', '-', |
| '4', '5', '6', '+', |
| '1', '2', '3', |
| '0', '.', |
| SPECIAL, /* 0x54 - Alt-SysRq */ |
| SPECIAL, /* 0x55 - F11/F12/PF1/FN */ |
| SPECIAL, /* 0x56 - unlabelled key next to LAlt */ |
| SPECIAL, /* 0x57 - F11 */ |
| SPECIAL, /* 0x58 - F12 */ |
| SPECIAL, /* 0x59 */ |
| SPECIAL, /* 0x5a */ |
| SPECIAL, /* 0x5b */ |
| SPECIAL, /* 0x5c */ |
| SPECIAL, /* 0x5d */ |
| SPECIAL, /* 0x5e */ |
| SPECIAL, /* 0x5f */ |
| SPECIAL, /* 0x60 */ |
| SPECIAL, /* 0x61 */ |
| SPECIAL, /* 0x62 */ |
| SPECIAL, /* 0x63 */ |
| SPECIAL, /* 0x64 */ |
| SPECIAL, /* 0x65 */ |
| SPECIAL, /* 0x66 */ |
| SPECIAL, /* 0x67 */ |
| SPECIAL, /* 0x68 */ |
| SPECIAL, /* 0x69 */ |
| SPECIAL, /* 0x6a */ |
| SPECIAL, /* 0x6b */ |
| SPECIAL, /* 0x6c */ |
| SPECIAL, /* 0x6d */ |
| SPECIAL, /* 0x6e */ |
| SPECIAL, /* 0x6f */ |
| SPECIAL, /* 0x70 */ |
| SPECIAL, /* 0x71 */ |
| SPECIAL, /* 0x72 */ |
| SPECIAL, /* 0x73 */ |
| SPECIAL, /* 0x74 */ |
| SPECIAL, /* 0x75 */ |
| SPECIAL, /* 0x76 */ |
| SPECIAL, /* 0x77 */ |
| SPECIAL, /* 0x78 */ |
| SPECIAL, /* 0x79 */ |
| SPECIAL, /* 0x7a */ |
| SPECIAL, /* 0x7b */ |
| SPECIAL, /* 0x7c */ |
| SPECIAL, /* 0x7d */ |
| SPECIAL, /* 0x7e */ |
| SPECIAL, /* 0x7f */ |
| }; |
| |
| /** Secondary meaning of scancodes. */ |
| static char sc_secondary_map[] = { |
| SPECIAL, /* 0x00 */ |
| SPECIAL, /* 0x01 - Esc */ |
| '!', '@', '#', '$', '%', '^', '&', '*', '(', ')', '_', '+', |
| SPECIAL, /* 0x0e - Backspace */ |
| '\t', 'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', 'O', 'P', '{', '}', '\n', |
| SPECIAL, /* 0x1d - LCtrl */ |
| 'A', 'S', 'D', 'F', 'G', 'H', 'J', 'K', 'L', ':', '"', |
| '~', |
| SPECIAL, /* 0x2a - LShift */ |
| '|', |
| 'Z', 'X', 'C', 'V', 'B', 'N', 'M', '<', '>', '?', |
| SPECIAL, /* 0x36 - RShift */ |
| '*', |
| SPECIAL, /* 0x38 - LAlt */ |
| ' ', |
| SPECIAL, /* 0x3a - CapsLock */ |
| SPECIAL, /* 0x3b - F1 */ |
| SPECIAL, /* 0x3c - F2 */ |
| SPECIAL, /* 0x3d - F3 */ |
| SPECIAL, /* 0x3e - F4 */ |
| SPECIAL, /* 0x3f - F5 */ |
| SPECIAL, /* 0x40 - F6 */ |
| SPECIAL, /* 0x41 - F7 */ |
| SPECIAL, /* 0x42 - F8 */ |
| SPECIAL, /* 0x43 - F9 */ |
| SPECIAL, /* 0x44 - F10 */ |
| SPECIAL, /* 0x45 - NumLock */ |
| SPECIAL, /* 0x46 - ScrollLock */ |
| '7', '8', '9', '-', |
| '4', '5', '6', '+', |
| '1', '2', '3', |
| '0', '.', |
| SPECIAL, /* 0x54 - Alt-SysRq */ |
| SPECIAL, /* 0x55 - F11/F12/PF1/FN */ |
| SPECIAL, /* 0x56 - unlabelled key next to LAlt */ |
| SPECIAL, /* 0x57 - F11 */ |
| SPECIAL, /* 0x58 - F12 */ |
| SPECIAL, /* 0x59 */ |
| SPECIAL, /* 0x5a */ |
| SPECIAL, /* 0x5b */ |
| SPECIAL, /* 0x5c */ |
| SPECIAL, /* 0x5d */ |
| SPECIAL, /* 0x5e */ |
| SPECIAL, /* 0x5f */ |
| SPECIAL, /* 0x60 */ |
| SPECIAL, /* 0x61 */ |
| SPECIAL, /* 0x62 */ |
| SPECIAL, /* 0x63 */ |
| SPECIAL, /* 0x64 */ |
| SPECIAL, /* 0x65 */ |
| SPECIAL, /* 0x66 */ |
| SPECIAL, /* 0x67 */ |
| SPECIAL, /* 0x68 */ |
| SPECIAL, /* 0x69 */ |
| SPECIAL, /* 0x6a */ |
| SPECIAL, /* 0x6b */ |
| SPECIAL, /* 0x6c */ |
| SPECIAL, /* 0x6d */ |
| SPECIAL, /* 0x6e */ |
| SPECIAL, /* 0x6f */ |
| SPECIAL, /* 0x70 */ |
| SPECIAL, /* 0x71 */ |
| SPECIAL, /* 0x72 */ |
| SPECIAL, /* 0x73 */ |
| SPECIAL, /* 0x74 */ |
| SPECIAL, /* 0x75 */ |
| SPECIAL, /* 0x76 */ |
| SPECIAL, /* 0x77 */ |
| SPECIAL, /* 0x78 */ |
| SPECIAL, /* 0x79 */ |
| SPECIAL, /* 0x7a */ |
| SPECIAL, /* 0x7b */ |
| SPECIAL, /* 0x7c */ |
| SPECIAL, /* 0x7d */ |
| SPECIAL, /* 0x7e */ |
| SPECIAL, /* 0x7f */ |
| }; |
| |
| irq_cmd_t i8042_cmds[1] = { |
| { CMD_PORT_READ_1, (void *)0x60, 0 } |
| }; |
| |
| irq_code_t i8042_kbd = { |
| 1, |
| i8042_cmds |
| }; |
| |
| static int key_released(unsigned char key) |
| { |
| switch (key) { |
| case SC_LSHIFT: |
| case SC_RSHIFT: |
| keyflags &= ~PRESSED_SHIFT; |
| break; |
| case SC_CAPSLOCK: |
| keyflags &= ~PRESSED_CAPSLOCK; |
| if (lockflags & LOCKED_CAPSLOCK) |
| lockflags &= ~LOCKED_CAPSLOCK; |
| else |
| lockflags |= LOCKED_CAPSLOCK; |
| break; |
| default: |
| break; |
| } |
| } |
| |
| static int key_pressed(unsigned char key) |
| { |
| char *map = sc_primary_map; |
| char ascii = sc_primary_map[key]; |
| char shift, capslock; |
| char letter = 0; |
| |
| switch (key) { |
| case SC_LSHIFT: |
| case SC_RSHIFT: |
| keyflags |= PRESSED_SHIFT; |
| break; |
| case SC_CAPSLOCK: |
| keyflags |= PRESSED_CAPSLOCK; |
| break; |
| case SC_SPEC_ESCAPE: |
| break; |
| case SC_LEFTARR: |
| if (key_buffer_available() >= 3) { |
| key_buffer_push(0x1b); |
| key_buffer_push(0x5b); |
| key_buffer_push(0x44); |
| } |
| break; |
| case SC_RIGHTARR: |
| if (key_buffer_available() >= 3) { |
| key_buffer_push(0x1b); |
| key_buffer_push(0x5b); |
| key_buffer_push(0x43); |
| } |
| break; |
| case SC_UPARR: |
| if (key_buffer_available() >= 3) { |
| key_buffer_push(0x1b); |
| key_buffer_push(0x5b); |
| key_buffer_push(0x41); |
| } |
| break; |
| case SC_DOWNARR: |
| if (key_buffer_available() >= 3) { |
| key_buffer_push(0x1b); |
| key_buffer_push(0x5b); |
| key_buffer_push(0x42); |
| } |
| break; |
| case SC_HOME: |
| if (key_buffer_available() >= 3) { |
| key_buffer_push(0x1b); |
| key_buffer_push(0x4f); |
| key_buffer_push(0x48); |
| } |
| break; |
| case SC_END: |
| if (key_buffer_available() >= 3) { |
| key_buffer_push(0x1b); |
| key_buffer_push(0x4f); |
| key_buffer_push(0x46); |
| } |
| break; |
| case SC_DELETE: |
| if (key_buffer_available() >= 4) { |
| key_buffer_push(0x1b); |
| key_buffer_push(0x5b); |
| key_buffer_push(0x33); |
| key_buffer_push(0x7e); |
| } |
| break; |
| default: |
| letter = ((ascii >= 'a') && (ascii <= 'z')); |
| capslock = (keyflags & PRESSED_CAPSLOCK) || (lockflags & LOCKED_CAPSLOCK); |
| shift = keyflags & PRESSED_SHIFT; |
| if (letter && capslock) |
| shift = !shift; |
| if (shift) |
| map = sc_secondary_map; |
| key_buffer_push(map[key]); |
| break; |
| } |
| } |
| |
| /** Register uspace irq handler |
| * @return |
| */ |
| int kbd_arch_init(void) |
| { |
| return !(ipc_register_irq(1, &i8042_kbd)); |
| } |
| |
| int kbd_arch_process(int scan_code) |
| { |
| if (scan_code != IGNORE_CODE) { |
| if (scan_code & KEY_RELEASE) |
| key_released(scan_code ^ KEY_RELEASE); |
| else |
| key_pressed(scan_code); |
| } |
| return 1; |
| } |