0,0 → 1,252 |
/* |
* Copyright (c) 2006 Jakub Jermar |
* 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. |
*/ |
|
/** @addtogroup genarch |
* @{ |
*/ |
/** |
* @file |
* @brief Key processing. |
*/ |
|
#include <genarch/kbd/key.h> |
#include <genarch/kbd/scanc.h> |
#ifdef CONFIG_I8042 |
#include <genarch/kbd/scanc_pc.h> |
#endif |
#if (defined(CONFIG_Z8530) || defined(CONFIG_NS16550)) |
#include <genarch/kbd/scanc_sun.h> |
#endif |
#include <synch/spinlock.h> |
#include <console/chardev.h> |
#include <macros.h> |
|
#define PRESSED_SHIFT (1<<0) |
#define PRESSED_CAPSLOCK (1<<1) |
#define LOCKED_CAPSLOCK (1<<0) |
|
#define ACTIVE_READ_BUFF_SIZE 16 /* Must be power of 2 */ |
|
chardev_t kbrd; |
|
static uint8_t active_read_buff[ACTIVE_READ_BUFF_SIZE]; |
|
SPINLOCK_INITIALIZE(keylock); /**< keylock protects keyflags and lockflags. */ |
static volatile int keyflags; /**< Tracking of multiple keypresses. */ |
static volatile int lockflags; /**< Tracking of multiple keys lockings. */ |
|
/** Process release of key. |
* |
* @param sc Scancode of the key being released. |
*/ |
void key_released(uint8_t sc) |
{ |
spinlock_lock(&keylock); |
switch (sc) { |
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; |
} |
spinlock_unlock(&keylock); |
} |
|
/** Process keypress. |
* |
* @param sc Scancode of the key being pressed. |
*/ |
void key_pressed(uint8_t sc) |
{ |
char *map = sc_primary_map; |
char ascii = sc_primary_map[sc]; |
bool shift, capslock; |
bool letter = false; |
|
spinlock_lock(&keylock); |
switch (sc) { |
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: |
chardev_push_character(&kbrd, 0x1b); |
chardev_push_character(&kbrd, 0x5b); |
chardev_push_character(&kbrd, 0x44); |
break; |
case SC_RIGHTARR: |
chardev_push_character(&kbrd, 0x1b); |
chardev_push_character(&kbrd, 0x5b); |
chardev_push_character(&kbrd, 0x43); |
break; |
case SC_UPARR: |
chardev_push_character(&kbrd, 0x1b); |
chardev_push_character(&kbrd, 0x5b); |
chardev_push_character(&kbrd, 0x41); |
break; |
case SC_DOWNARR: |
chardev_push_character(&kbrd, 0x1b); |
chardev_push_character(&kbrd, 0x5b); |
chardev_push_character(&kbrd, 0x42); |
break; |
case SC_HOME: |
chardev_push_character(&kbrd, 0x1b); |
chardev_push_character(&kbrd, 0x4f); |
chardev_push_character(&kbrd, 0x48); |
break; |
case SC_END: |
chardev_push_character(&kbrd, 0x1b); |
chardev_push_character(&kbrd, 0x4f); |
chardev_push_character(&kbrd, 0x46); |
break; |
case SC_DELETE: |
chardev_push_character(&kbrd, 0x1b); |
chardev_push_character(&kbrd, 0x5b); |
chardev_push_character(&kbrd, 0x33); |
chardev_push_character(&kbrd, 0x7e); |
break; |
default: |
letter = islower(ascii); |
capslock = (keyflags & PRESSED_CAPSLOCK) || |
(lockflags & LOCKED_CAPSLOCK); |
shift = keyflags & PRESSED_SHIFT; |
if (letter && capslock) |
shift = !shift; |
if (shift) |
map = sc_secondary_map; |
chardev_push_character(&kbrd, map[sc]); |
break; |
} |
spinlock_unlock(&keylock); |
} |
|
uint8_t active_read_buff_read(void) |
{ |
static int i=0; |
i &= (ACTIVE_READ_BUFF_SIZE-1); |
if(!active_read_buff[i]) { |
return 0; |
} |
return active_read_buff[i++]; |
} |
|
void active_read_buff_write(uint8_t ch) |
{ |
static int i=0; |
active_read_buff[i] = ch; |
i++; |
i &= (ACTIVE_READ_BUFF_SIZE-1); |
active_read_buff[i]=0; |
} |
|
|
void active_read_key_pressed(uint8_t sc) |
{ |
char *map = sc_primary_map; |
char ascii = sc_primary_map[sc]; |
bool shift, capslock; |
bool letter = false; |
|
/*spinlock_lock(&keylock);*/ |
switch (sc) { |
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: |
active_read_buff_write(0x1b); |
active_read_buff_write(0x5b); |
active_read_buff_write(0x44); |
break; |
case SC_RIGHTARR: |
active_read_buff_write(0x1b); |
active_read_buff_write(0x5b); |
active_read_buff_write(0x43); |
break; |
case SC_UPARR: |
active_read_buff_write(0x1b); |
active_read_buff_write(0x5b); |
active_read_buff_write(0x41); |
break; |
case SC_DOWNARR: |
active_read_buff_write(0x1b); |
active_read_buff_write(0x5b); |
active_read_buff_write(0x42); |
break; |
case SC_HOME: |
active_read_buff_write(0x1b); |
active_read_buff_write(0x4f); |
active_read_buff_write(0x48); |
break; |
case SC_END: |
active_read_buff_write(0x1b); |
active_read_buff_write(0x4f); |
active_read_buff_write(0x46); |
break; |
case SC_DELETE: |
active_read_buff_write(0x1b); |
active_read_buff_write(0x5b); |
active_read_buff_write(0x33); |
active_read_buff_write(0x7e); |
break; |
default: |
letter = islower(ascii); |
capslock = (keyflags & PRESSED_CAPSLOCK) || |
(lockflags & LOCKED_CAPSLOCK); |
shift = keyflags & PRESSED_SHIFT; |
if (letter && capslock) |
shift = !shift; |
if (shift) |
map = sc_secondary_map; |
active_read_buff_write(map[sc]); |
break; |
} |
/*spinlock_unlock(&keylock);*/ |
|
} |
|
/** @} |
*/ |