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Hook AT keyboard mapping

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This commit is contained in:
Vladimir 'phcoder' Serbinenko 2010-08-19 15:00:31 +02:00
parent ed19677fe3
commit e55e09628d
9 changed files with 290 additions and 173 deletions
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129
term/at_keyboard.c
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@ -22,64 +22,18 @@
#include <grub/cpu/io.h>
#include <grub/misc.h>
#include <grub/term.h>
#include <grub/keyboard_layouts.h>
static short at_keyboard_status = 0;
static int extended_pending = 0;
static int pending_key = -1;
#define KEYBOARD_STATUS_SHIFT_L (1 << 0)
#define KEYBOARD_STATUS_SHIFT_R (1 << 1)
#define KEYBOARD_STATUS_ALT_L (1 << 2)
#define KEYBOARD_STATUS_ALT_R (1 << 3)
#define KEYBOARD_STATUS_CTRL_L (1 << 4)
#define KEYBOARD_STATUS_CTRL_R (1 << 5)
#define KEYBOARD_STATUS_CAPS_LOCK (1 << 6)
#define KEYBOARD_STATUS_NUM_LOCK (1 << 7)
#define KEYBOARD_STATUS_EXTENDED (1 << 8)
static grub_uint8_t led_status;
#define KEYBOARD_LED_SCROLL (1 << 0)
#define KEYBOARD_LED_NUM (1 << 1)
#define KEYBOARD_LED_CAPS (1 << 2)
static const unsigned keyboard_map[128] =
{
/* 0x00 */ '\0', GRUB_TERM_ESC, '1', '2', '3', '4', '5', '6',
/* 0x08 */ '7', '8', '9', '0', '-', '=', GRUB_TERM_BACKSPACE, GRUB_TERM_TAB,
/* 0x10 */ 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i',
/* 0x18 */ 'o', 'p', '[', ']', '\n', '\0', 'a', 's',
/* 0x20 */ 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';',
/* 0x28 */ '\'', '`', '\0', '\\', 'z', 'x', 'c', 'v',
/* 0x30 */ 'b', 'n', 'm', ',', '.', '/', '\0', '*',
/* 0x38 */ '\0', ' ', '\0', GRUB_TERM_KEY_F1,
/* 0x3c */ GRUB_TERM_KEY_F2, GRUB_TERM_KEY_F3,
/* 0x3e */ GRUB_TERM_KEY_F4, GRUB_TERM_KEY_F5,
/* 0x40 */ GRUB_TERM_KEY_F6, GRUB_TERM_KEY_F7,
/* 0x42 */ GRUB_TERM_KEY_F8, GRUB_TERM_KEY_F9,
/* 0x44 */ GRUB_TERM_KEY_F10, '\0', '\0', GRUB_TERM_KEY_HOME,
/* 0x48 */ GRUB_TERM_KEY_UP, GRUB_TERM_KEY_NPAGE, '-', GRUB_TERM_KEY_LEFT,
/* 0x4c */ GRUB_TERM_KEY_CENTER, GRUB_TERM_KEY_RIGHT, '+', GRUB_TERM_KEY_END,
/* 0x50 */ GRUB_TERM_KEY_DOWN, GRUB_TERM_KEY_PPAGE,
/* 0x52 */ GRUB_TERM_KEY_INSERT, GRUB_TERM_KEY_DC,
/* 0x54 */ '\0', '\0', '\\', GRUB_TERM_KEY_F11,
/* 0x58 */ GRUB_TERM_KEY_F12, '\0', '\0', '\0', '\0', '\0', '\0', '\0',
/* 0x60 */ '\0', '\0', '\0', '\0',
/* 0x64 */ '\0', GRUB_TERM_KEY_UP, GRUB_TERM_KEY_DOWN, GRUB_TERM_KEY_LEFT,
/* 0x68 */ GRUB_TERM_KEY_RIGHT
};
static unsigned keyboard_map_shift[128] =
{
'\0', '\0', '!', '@', '#', '$', '%', '^',
'&', '*', '(', ')', '_', '+', '\0', '\0',
'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I',
'O', 'P', '{', '}', '\n', '\0', 'A', 'S',
'D', 'F', 'G', 'H', 'J', 'K', 'L', ':',
'\"', '~', '\0', '|', 'Z', 'X', 'C', 'V',
'B', 'N', 'M', '<', '>', '?',
[0x56] = '|'
};
static grub_uint8_t grub_keyboard_controller_orig;
static void
@ -122,45 +76,41 @@ grub_keyboard_isr (grub_uint8_t key)
switch (KEYBOARD_SCANCODE (key))
{
case SHIFT_L:
at_keyboard_status |= KEYBOARD_STATUS_SHIFT_L;
at_keyboard_status |= GRUB_TERM_STATUS_LSHIFT;
break;
case SHIFT_R:
at_keyboard_status |= KEYBOARD_STATUS_SHIFT_R;
at_keyboard_status |= GRUB_TERM_STATUS_RSHIFT;
break;
case CTRL:
at_keyboard_status |= KEYBOARD_STATUS_CTRL_L;
at_keyboard_status |= GRUB_TERM_STATUS_LCTRL;
break;
case ALT:
if (at_keyboard_status & KEYBOARD_STATUS_EXTENDED)
at_keyboard_status |= KEYBOARD_STATUS_ALT_R;
if (extended_pending)
at_keyboard_status |= GRUB_TERM_STATUS_RALT;
else
at_keyboard_status |= KEYBOARD_STATUS_ALT_L;
at_keyboard_status |= GRUB_TERM_STATUS_LALT;
break;
}
else
switch (KEYBOARD_SCANCODE (key))
{
case SHIFT_L:
at_keyboard_status &= ~KEYBOARD_STATUS_SHIFT_L;
at_keyboard_status &= ~GRUB_TERM_STATUS_LSHIFT;
break;
case SHIFT_R:
at_keyboard_status &= ~KEYBOARD_STATUS_SHIFT_R;
at_keyboard_status &= ~GRUB_TERM_STATUS_RSHIFT;
break;
case CTRL:
at_keyboard_status &= ~KEYBOARD_STATUS_CTRL_L;
at_keyboard_status &= ~GRUB_TERM_STATUS_LCTRL;
break;
case ALT:
if (at_keyboard_status & KEYBOARD_STATUS_EXTENDED)
at_keyboard_status &= ~KEYBOARD_STATUS_ALT_R;
if (extended_pending)
at_keyboard_status &= ~GRUB_TERM_STATUS_RALT;
else
at_keyboard_status &= ~KEYBOARD_STATUS_ALT_L;
at_keyboard_status &= ~GRUB_TERM_STATUS_LALT;
break;
}
if (key == 0xe0)
at_keyboard_status |= KEYBOARD_STATUS_EXTENDED;
else
at_keyboard_status &= ~KEYBOARD_STATUS_EXTENDED;
extended_pending = (key == 0xe0);
}
/* If there is a raw key pending, return it; otherwise return -1. */
@ -177,11 +127,12 @@ grub_keyboard_getkey (void)
return (KEYBOARD_SCANCODE (key));
}
/* If there is a character pending, return it; otherwise return -1. */
static int
grub_at_keyboard_getkey_noblock (void)
{
int code, key;
int code;
code = grub_keyboard_getkey ();
if (code == -1)
return -1;
@ -194,66 +145,34 @@ grub_at_keyboard_getkey_noblock (void)
/* Caps lock sends scan code twice. Get the second one and discard it. */
while (grub_keyboard_getkey () == -1);
at_keyboard_status ^= KEYBOARD_STATUS_CAPS_LOCK;
at_keyboard_status ^= GRUB_TERM_STATUS_CAPS;
led_status ^= KEYBOARD_LED_CAPS;
keyboard_controller_led (led_status);
#ifdef DEBUG_AT_KEYBOARD
grub_dprintf ("atkeyb", "caps_lock = %d\n", !!(at_keyboard_status & KEYBOARD_STATUS_CAPS_LOCK));
#endif
key = -1;
break;
return -1;
case NUM_LOCK:
/* Num lock sends scan code twice. Get the second one and discard it. */
while (grub_keyboard_getkey () == -1);
at_keyboard_status ^= KEYBOARD_STATUS_NUM_LOCK;
at_keyboard_status ^= GRUB_TERM_STATUS_NUM;
led_status ^= KEYBOARD_LED_NUM;
keyboard_controller_led (led_status);
#ifdef DEBUG_AT_KEYBOARD
grub_dprintf ("atkeyb", "num_lock = %d\n", !!(at_keyboard_status & KEYBOARD_STATUS_NUM_LOCK));
#endif
key = -1;
break;
return -1;
case SCROLL_LOCK:
/* For scroll lock we don't keep track of status. Only update its led. */
at_keyboard_status ^= GRUB_TERM_STATUS_SCROLL;
led_status ^= KEYBOARD_LED_SCROLL;
keyboard_controller_led (led_status);
key = -1;
break;
return -1;
default:
if (at_keyboard_status & (KEYBOARD_STATUS_SHIFT_L
| KEYBOARD_STATUS_SHIFT_R))
{
if (keyboard_map_shift[code])
key = keyboard_map_shift[code];
else
key = keyboard_map[code] | GRUB_TERM_SHIFT;
}
else
key = keyboard_map[code];
if (key == 0)
grub_dprintf ("atkeyb", "Unknown key 0x%x detected\n", code);
if (at_keyboard_status & KEYBOARD_STATUS_CAPS_LOCK)
{
if ((key >= 'a') && (key <= 'z'))
key += 'A' - 'a';
else if ((key >= 'A') && (key <= 'Z'))
key += 'a' - 'A';
}
if (at_keyboard_status & KEYBOARD_STATUS_ALT_L)
key |= GRUB_TERM_ALT;
if (at_keyboard_status & KEYBOARD_STATUS_ALT_R)
key |= GRUB_TERM_ALT;
if (at_keyboard_status & (KEYBOARD_STATUS_CTRL_L
| KEYBOARD_STATUS_CTRL_R))
key |= GRUB_TERM_CTRL;
return grub_term_map_key (code, at_keyboard_status);
}
return key;
}
static int