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Kernel: Implement AltGr key support

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This commit is contained in:
Tibor Nagy 2019-12-31 13:37:38 +01:00 • committed by Andreas Kling
parent 36f1de3c89
commit 624116a8b1
6 changed files with 36 additions and 15 deletions
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17
Kernel/Devices/KeyboardDevice.cpp
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@ -20,6 +20,7 @@
char *map;
char *shift_map;
char *alt_map;
char *altgr_map;
static char en_map[0x80] = {
0, '\033', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', '=', 0x08, '\t',
@ -246,7 +247,7 @@ static KeyCode numpad_key_map[13] = { Key_7, Key_8, Key_9, Key_Invalid, Key_4, K
void KeyboardDevice::key_state_changed(u8 raw, bool pressed)
{
KeyCode key = (m_modifiers & Mod_Shift) ? shifted_key_map[raw] : unshifted_key_map[raw];
char character = (m_modifiers & Mod_Shift) ? shift_map[raw]: (m_modifiers & Mod_Alt) ? alt_map[raw] : map[raw];
char character = (m_modifiers & Mod_Shift) ? shift_map[raw] : (m_modifiers & Mod_Alt) ? alt_map[raw] : (m_modifiers & Mod_AltGr) ? altgr_map[raw] : map[raw];
if (key == Key_NumLock && pressed)
m_num_lock_on = !m_num_lock_on;
@ -318,7 +319,10 @@ void KeyboardDevice::handle_irq()
#endif
switch (ch) {
case 0x38:
update_modifier(Mod_Alt, pressed);
if (m_has_e0_prefix)
update_modifier(Mod_AltGr, pressed);
else
update_modifier(Mod_Alt, pressed);
break;
case 0x1d:
update_modifier(Mod_Ctrl, pressed);
@ -368,7 +372,7 @@ KeyboardDevice::KeyboardDevice()
{
s_the = this;
KeyboardDevice::set_maps(en_map, en_shift_map, en_map);
KeyboardDevice::set_maps(en_map, en_shift_map, en_map, en_map);
// Empty the buffer of any pending data.
// I don't care what you've been pressing until now!
@ -412,19 +416,22 @@ KeyboardClient::~KeyboardClient()
{
}
void KeyboardDevice::set_maps(char* n_map, char* n_shift_map, char* n_alt_map)
void KeyboardDevice::set_maps(const char* n_map, const char* n_shift_map, const char* n_alt_map, const char* n_altgr_map)
{
kfree(map);
kfree(shift_map);
kfree(alt_map);
kfree(altgr_map);
map = (char*) kmalloc(0x80);
shift_map = (char*) kmalloc(0x80);
alt_map = (char*) kmalloc(0x80);
altgr_map = (char*) kmalloc(0x80);
for(int i=0; i < 0x80; i++) {
map[i] = n_map[i];
shift_map[i] = n_shift_map[i];
alt_map[i] = n_alt_map[i];
altgr_map[i] = n_altgr_map[i];
}
}
}