/trunk/kernel/genarch/include/kbd/key.h |
---|
0,0 → 1,57 |
/* |
* 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 |
*/ |
#ifndef KERN_KEY_H_ |
#define KERN_KEY_H_ |
#include <arch/types.h> |
#include <typedefs.h> |
#define KEY_RELEASE 0x80 |
extern chardev_t kbrd; |
extern void key_released(uint8_t sc); |
extern void key_pressed(uint8_t sc); |
extern uint8_t active_read_buff_read(void); |
extern void active_read_buff_write(uint8_t ch); |
extern void active_read_key_pressed(uint8_t sc); |
extern char key_read(chardev_t *d); |
#endif |
/** @} |
*/ |
/trunk/kernel/genarch/Makefile.inc |
---|
68,6 → 68,7 |
ifeq ($(CONFIG_I8042),y) |
GENARCH_SOURCES += \ |
genarch/src/kbd/i8042.c \ |
genarch/src/kbd/key.c \ |
genarch/src/kbd/scanc_pc.c |
endif |
75,5 → 76,6 |
ifeq ($(CONFIG_Z8530),y) |
GENARCH_SOURCES += \ |
genarch/src/kbd/z8530.c \ |
genarch/src/kbd/key.c \ |
genarch/src/kbd/scanc_sun.c |
endif |
/trunk/kernel/genarch/src/kbd/i8042.c |
---|
37,6 → 37,7 |
*/ |
#include <genarch/kbd/i8042.h> |
#include <genarch/kbd/key.h> |
#include <genarch/kbd/scanc.h> |
#include <genarch/kbd/scanc_pc.h> |
#include <arch/drivers/i8042.h> |
44,11 → 45,9 |
#include <cpu.h> |
#include <arch/asm.h> |
#include <arch.h> |
#include <synch/spinlock.h> |
#include <typedefs.h> |
#include <console/chardev.h> |
#include <console/console.h> |
#include <macros.h> |
#include <interrupt.h> |
/* Keyboard commands. */ |
78,28 → 77,10 |
#define i8042_WAIT_MASK 0x02 |
#define i8042_MOUSE_DATA 0x20 |
#define KEY_RELEASE 0x80 |
static void key_released(uint8_t sc); |
static void key_pressed(uint8_t sc); |
static char key_read(chardev_t *d); |
#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 */ |
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. */ |
static void i8042_suspend(chardev_t *); |
static void i8042_resume(chardev_t *); |
static chardev_t kbrd; |
chardev_t kbrd; |
static chardev_operations_t ops = { |
.suspend = i8042_suspend, |
.resume = i8042_resume, |
182,103 → 163,6 |
} |
} |
/** 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 = is_lower(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); |
} |
/* Called from getc(). */ |
void i8042_resume(chardev_t *d) |
{ |
289,97 → 173,8 |
{ |
} |
static uint8_t active_read_buff_read(void) |
char key_read(chardev_t *d) |
{ |
static int i=0; |
i &= (ACTIVE_READ_BUFF_SIZE-1); |
if(!active_read_buff[i]) { |
return 0; |
} |
return active_read_buff[i++]; |
} |
static 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; |
} |
static 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 = is_lower(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);*/ |
} |
static char key_read(chardev_t *d) |
{ |
char ch; |
while(!(ch = active_read_buff_read())) { |
/trunk/kernel/genarch/src/kbd/key.c |
---|
0,0 → 1,244 |
/* |
* 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> |
#include <genarch/kbd/scanc_pc.h> |
#include <synch/spinlock.h> |
#include <console/chardev.h> |
#include <typedefs.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 */ |
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 = is_lower(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 = is_lower(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);*/ |
} |
/** @} |
*/ |
/trunk/kernel/genarch/src/kbd/z8530.c |
---|
42,6 → 42,7 |
*/ |
#include <genarch/kbd/z8530.h> |
#include <genarch/kbd/key.h> |
#include <genarch/kbd/scanc.h> |
#include <genarch/kbd/scanc_sun.h> |
#include <arch/drivers/z8530.h> |
49,11 → 50,9 |
#include <cpu.h> |
#include <arch/asm.h> |
#include <arch.h> |
#include <synch/spinlock.h> |
#include <typedefs.h> |
#include <console/chardev.h> |
#include <console/console.h> |
#include <macros.h> |
#include <interrupt.h> |
/* Keyboard commands. */ |
83,33 → 82,15 |
#define z8530_WAIT_MASK 0x02 |
#define z8530_MOUSE_DATA 0x20 |
#define KEY_RELEASE 0x80 |
/* |
* These codes read from z8530 data register are silently ignored. |
*/ |
#define IGNORE_CODE 0x7f /* all keys up */ |
static void key_released(uint8_t sc); |
static void key_pressed(uint8_t sc); |
static char key_read(chardev_t *d); |
#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 */ |
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. */ |
static void z8530_suspend(chardev_t *); |
static void z8530_resume(chardev_t *); |
static chardev_t kbrd; |
chardev_t kbrd; |
static chardev_operations_t ops = { |
.suspend = z8530_suspend, |
.resume = z8530_resume, |
192,103 → 173,6 |
} |
} |
/** 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 = is_lower(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); |
} |
/* Called from getc(). */ |
void z8530_resume(chardev_t *d) |
{ |
299,97 → 183,8 |
{ |
} |
static uint8_t active_read_buff_read(void) |
char key_read(chardev_t *d) |
{ |
static int i=0; |
i &= (ACTIVE_READ_BUFF_SIZE-1); |
if(!active_read_buff[i]) { |
return 0; |
} |
return active_read_buff[i++]; |
} |
static 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; |
} |
static 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 = is_lower(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);*/ |
} |
static char key_read(chardev_t *d) |
{ |
char ch; |
while(!(ch = active_read_buff_read())) { |