0,0 → 1,379 |
/* |
* 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. |
*/ |
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/** @addtogroup kbdia32 ia32 |
* @brief HelenOS ia32 / amd64 arch dependent parts of uspace keyboard handler. |
* @ingroup kbd |
* @{ |
*/ |
/** @file |
* @ingroup kbdamd64 |
*/ |
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#include <arch/kbd.h> |
#include <ipc/ipc.h> |
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#define SPECIAL 255 |
#define KEY_RELEASE 0x80 |
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/** |
* These codes read from i8042 data register are silently ignored. |
*/ |
#define IGNORE_CODE 0x7f |
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#define PRESSED_SHIFT (1<<0) |
#define PRESSED_CAPSLOCK (1<<1) |
#define LOCKED_CAPSLOCK (1<<0) |
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/** 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 |
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#define FUNCTION_KEYS 0x100 |
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static volatile int keyflags; /**< Tracking of multiple keypresses. */ |
static volatile int lockflags; /**< Tracking of multiple keys lockings. */ |
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/** Primary meaning of scancodes. */ |
static int 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 */ |
(FUNCTION_KEYS | 1), /* 0x3b - F1 */ |
(FUNCTION_KEYS | 2), /* 0x3c - F2 */ |
(FUNCTION_KEYS | 3), /* 0x3d - F3 */ |
(FUNCTION_KEYS | 4), /* 0x3e - F4 */ |
(FUNCTION_KEYS | 5), /* 0x3f - F5 */ |
(FUNCTION_KEYS | 6), /* 0x40 - F6 */ |
(FUNCTION_KEYS | 7), /* 0x41 - F7 */ |
(FUNCTION_KEYS | 8), /* 0x42 - F8 */ |
(FUNCTION_KEYS | 9), /* 0x43 - F9 */ |
(FUNCTION_KEYS | 10), /* 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 */ |
(FUNCTION_KEYS | 11), /* 0x57 - F11 */ |
(FUNCTION_KEYS | 12), /* 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 */ |
}; |
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/** Secondary meaning of scancodes. */ |
static int sc_secondary_map[] = { |
SPECIAL, /* 0x00 */ |
0x1b, /* 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 */ |
}; |
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irq_cmd_t i8042_cmds[1] = { |
{ CMD_PORT_READ_1, (void *)0x60, 0 } |
}; |
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irq_code_t i8042_kbd = { |
1, |
i8042_cmds |
}; |
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static int key_released(keybuffer_t *keybuffer, 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; |
} |
} |
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static int key_pressed(keybuffer_t *keybuffer, unsigned char key) |
{ |
int *map = sc_primary_map; |
int ascii = sc_primary_map[key]; |
int shift, capslock; |
int letter = 0; |
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static int esc_count=0; |
|
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if ( key == SC_ESC ) { |
esc_count++; |
if ( esc_count == 3 ) { |
__SYSCALL0(SYS_DEBUG_ENABLE_CONSOLE); |
} |
} else { |
esc_count=0; |
} |
|
|
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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 (keybuffer_available(keybuffer) >= 3) { |
keybuffer_push(keybuffer, 0x1b); |
keybuffer_push(keybuffer, 0x5b); |
keybuffer_push(keybuffer, 0x44); |
} |
break; |
case SC_RIGHTARR: |
if (keybuffer_available(keybuffer) >= 3) { |
keybuffer_push(keybuffer, 0x1b); |
keybuffer_push(keybuffer, 0x5b); |
keybuffer_push(keybuffer, 0x43); |
} |
break; |
case SC_UPARR: |
if (keybuffer_available(keybuffer) >= 3) { |
keybuffer_push(keybuffer, 0x1b); |
keybuffer_push(keybuffer, 0x5b); |
keybuffer_push(keybuffer, 0x41); |
} |
break; |
case SC_DOWNARR: |
if (keybuffer_available(keybuffer) >= 3) { |
keybuffer_push(keybuffer, 0x1b); |
keybuffer_push(keybuffer, 0x5b); |
keybuffer_push(keybuffer, 0x42); |
} |
break; |
case SC_HOME: |
if (keybuffer_available(keybuffer) >= 3) { |
keybuffer_push(keybuffer, 0x1b); |
keybuffer_push(keybuffer, 0x4f); |
keybuffer_push(keybuffer, 0x48); |
} |
break; |
case SC_END: |
if (keybuffer_available(keybuffer) >= 3) { |
keybuffer_push(keybuffer, 0x1b); |
keybuffer_push(keybuffer, 0x4f); |
keybuffer_push(keybuffer, 0x46); |
} |
break; |
case SC_DELETE: |
if (keybuffer_available(keybuffer) >= 4) { |
keybuffer_push(keybuffer, 0x1b); |
keybuffer_push(keybuffer, 0x5b); |
keybuffer_push(keybuffer, 0x33); |
keybuffer_push(keybuffer, 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; |
if (map[key] != SPECIAL) |
keybuffer_push(keybuffer, map[key]); |
break; |
} |
} |
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/** Register uspace irq handler |
* @return |
*/ |
int kbd_arch_init(void) |
{ |
return !(ipc_register_irq(1, &i8042_kbd)); |
} |
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int kbd_arch_process(keybuffer_t *keybuffer, int scan_code) |
{ |
if (scan_code != IGNORE_CODE) { |
if (scan_code & KEY_RELEASE) |
key_released(keybuffer, scan_code ^ KEY_RELEASE); |
else |
key_pressed(keybuffer, scan_code); |
} |
return 1; |
} |
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/** |
* @} |
*/ |
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