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Ignore whitespace Rev 1787 → Rev 1874

/trunk/uspace/kbd/arch/ia32/src/scanc.c/kbd.c
27,9 → 27,8
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
 
/** @addtogroup kbdia32 ia32
* @brief HelenOS ia32 / amd64 arch dependent parts of uspace keyboard handler.
* @ingroup kbd
/** @addtogroup kbdia32
* @brief Scancodes for PC keyboards.
* @{
*/
/** @file
36,67 → 35,10
* @ingroup kbdamd64
*/
 
#include <arch/kbd.h>
#include <ipc/ipc.h>
#include <unistd.h>
#include <kbd.h>
#include <keys.h>
#include <genarch/scanc.h>
 
/* Interesting bits for status register */
#define i8042_OUTPUT_FULL 0x1
#define i8042_INPUT_FULL 0x2
#define i8042_MOUSE_DATA 0x20
 
/* Command constants */
#define i8042_CMD_KBD 0x60
#define i8042_CMD_MOUSE 0xd4
 
/* Keyboard cmd byte */
#define i8042_KBD_IE 0x1
#define i8042_MOUSE_IE 0x2
#define i8042_KBD_DISABLE 0x10
#define i8042_MOUSE_DISABLE 0x20
#define i8042_KBD_TRANSLATE 0x40
 
/* Mouse constants */
#define MOUSE_OUT_INIT 0xf4
#define MOUSE_ACK 0xfa
 
 
#define SPECIAL 255
#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
 
#define FUNCTION_KEYS 0x100
 
static volatile int keyflags; /**< Tracking of multiple keypresses. */
static volatile int lockflags; /**< Tracking of multiple keys lockings. */
 
/** Primary meaning of scancodes. */
static int sc_primary_map[] = {
int sc_primary_map[] = {
SPECIAL, /* 0x00 */
SPECIAL, /* 0x01 - Esc */
'1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', '=',
176,7 → 118,7
};
 
/** Secondary meaning of scancodes. */
static int sc_secondary_map[] = {
int sc_secondary_map[] = {
SPECIAL, /* 0x00 */
0x1b, /* 0x01 - Esc */
'!', '@', '#', '$', '%', '^', '&', '*', '(', ')', '_', '+',
255,222 → 197,6
SPECIAL, /* 0x7f */
};
 
irq_cmd_t i8042_cmds[2] = {
{ CMD_PORT_READ_1, (void *)0x64, 0, 1 },
{ CMD_PORT_READ_1, (void *)0x60, 0, 2 }
};
 
irq_code_t i8042_kbd = {
2,
i8042_cmds
};
 
static void 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;
}
}
 
static void 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;
 
static int esc_count=0;
 
if ( key == SC_ESC ) {
esc_count++;
if ( esc_count == 3 ) {
__SYSCALL0(SYS_DEBUG_ENABLE_CONSOLE);
}
} else {
esc_count=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 (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;
}
}
 
 
static void wait_ready(void) {
while (i8042_status_read() & i8042_INPUT_FULL)
;
}
 
/** Register uspace irq handler
* @return
*/
int kbd_arch_init(void)
{
int i;
int mouseenabled = 0;
 
iospace_enable(task_get_id(),(void *)i8042_DATA, 5);
/* Disable kbd, enable mouse */
i8042_command_write(i8042_CMD_KBD);
wait_ready();
i8042_command_write(i8042_CMD_KBD);
wait_ready();
i8042_data_write(i8042_KBD_DISABLE);
wait_ready();
 
/* Flush all current IO */
while (i8042_status_read() & i8042_OUTPUT_FULL)
i8042_data_read();
/* Initialize mouse */
i8042_command_write(i8042_CMD_MOUSE);
wait_ready();
i8042_data_write(MOUSE_OUT_INIT);
wait_ready();
int mouseanswer = 0;
for (i=0;i < 1000; i++) {
int status = i8042_status_read();
if (status & i8042_OUTPUT_FULL) {
int data = i8042_data_read();
if (status & i8042_MOUSE_DATA) {
mouseanswer = data;
break;
}
}
usleep(1000);
}
if (mouseanswer == MOUSE_ACK) {
/* enable mouse */
mouseenabled = 1;
 
ipc_register_irq(MOUSE_IRQ, &i8042_kbd);
}
/* Enable kbd */
ipc_register_irq(KBD_IRQ, &i8042_kbd);
/* Register for irq restart */
ipc_register_irq(IPC_IRQ_KBDRESTART, NULL);
 
int newcontrol = i8042_KBD_IE | i8042_KBD_TRANSLATE;
if (mouseenabled)
newcontrol |= i8042_MOUSE_IE;
i8042_command_write(i8042_CMD_KBD);
wait_ready();
i8042_data_write(newcontrol);
wait_ready();
return 0;
}
 
/** Process keyboard & mouse events */
int kbd_arch_process(keybuffer_t *keybuffer, ipc_call_t *call)
{
int status = IPC_GET_ARG1(*call);
 
if (IPC_GET_METHOD(*call) == IPC_IRQ_KBDRESTART) {
kbd_arch_init();
return 1;
}
 
if ((status & i8042_MOUSE_DATA))
return 0;
int scan_code = IPC_GET_ARG2(*call);
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;
}
 
/**
* @}
*/