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Diffstat (limited to 'src/kernel/input/ps2/keyboard.c')
-rw-r--r--src/kernel/input/ps2/keyboard.c194
1 files changed, 99 insertions, 95 deletions
diff --git a/src/kernel/input/ps2/keyboard.c b/src/kernel/input/ps2/keyboard.c
index 6721193..886786b 100644
--- a/src/kernel/input/ps2/keyboard.c
+++ b/src/kernel/input/ps2/keyboard.c
@@ -9,133 +9,137 @@ int shift_pressed;
int control_pressed;
char keymap[128] = {
- 0 /*E*/, 27, '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', '=', '\b',
- '\t', 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '[', ']', '\n',
- 17 /*C*/, 'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', '\'', '`', 14 /*LS*/,
- '\\', 'z', 'x', 'c', 'v', 'b', 'n', 'm', ',', '.', '/', 14 /*RS*/, '*',
- 0, // Alt key
- ' ', // Space bar
- 15, // Caps lock
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // F keys
- 0, // Num lock
- 0, // Scroll lock
- 0, // Home key
- 0, // Up arrow
- 0, // Page up
- '-',
- 0, // Left arrow
- 0,
- 0, // Right arrow
- '+',
- 0, // End key
- 0, // Down arrow
- 0, // Page down
- 0, // Insert key
- 0, // Delete key
- 0, 0, 0,
- 0, // F11
- 0, // F12
- 0, // Other keys
+ 0 /*E*/, 27, '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', '=',
+ '\b', '\t', 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '[', ']',
+ '\n', 17 /*C*/, 'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', '\'', '`',
+ 14 /*LS*/, '\\', 'z', 'x', 'c', 'v', 'b', 'n', 'm', ',', '.', '/', 14 /*RS*/, '*',
+ 0, // Alt key
+ ' ', // Space bar
+ 15, // Caps lock
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // F keys
+ 0, // Num lock
+ 0, // Scroll lock
+ 0, // Home key
+ 0, // Up arrow
+ 0, // Page up
+ '-',
+ 0, // Left arrow
+ 0,
+ 0, // Right arrow
+ '+',
+ 0, // End key
+ 0, // Down arrow
+ 0, // Page down
+ 0, // Insert key
+ 0, // Delete key
+ 0, 0, 0,
+ 0, // F11
+ 0, // F12
+ 0, // Other keys
};
char shift_keymap[128] = {
- 0 /*E*/, 27, '!', '@', '#', '$', '%', '^', '&', '*', '(', ')', '_', '+', '\b',
- '\t', 'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', 'O', 'P', '{', '}', '\n',
- 17 /*C*/, 'A', 'S', 'D', 'F', 'G', 'H', 'J', 'K', 'L', ':', '"', '~', 14 /*LS*/,
- '|', 'Z', 'X', 'C', 'V', 'B', 'N', 'M', '<', '>', '?', 14 /*RS*/, '*',
- 0, // Alt key
- ' ', // Space bar
- 15, // Caps lock
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // F keys
- 0, // Num lock
- 0, // Scroll lock
- 0, // Home key
- 0, // Up arrow
- 0, // Page up
- '-',
- 0, // Left arrow
- 0,
- 0, // Right arrow
- '+',
- 0, // End key
- 0, // Down arrow
- 0, // Page down
- 0, // Insert key
- 0, // Delete key
- 0, 0, 0,
- 0, // F11
- 0, // F12
- 0, // Other keys
+ 0 /*E*/, 27, '!', '@', '#', '$', '%', '^', '&', '*', '(', ')', '_', '+',
+ '\b', '\t', 'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', 'O', 'P', '{', '}',
+ '\n', 17 /*C*/, 'A', 'S', 'D', 'F', 'G', 'H', 'J', 'K', 'L', ':', '"', '~',
+ 14 /*LS*/, '|', 'Z', 'X', 'C', 'V', 'B', 'N', 'M', '<', '>', '?', 14 /*RS*/, '*',
+ 0, // Alt key
+ ' ', // Space bar
+ 15, // Caps lock
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // F keys
+ 0, // Num lock
+ 0, // Scroll lock
+ 0, // Home key
+ 0, // Up arrow
+ 0, // Page up
+ '-',
+ 0, // Left arrow
+ 0,
+ 0, // Right arrow
+ '+',
+ 0, // End key
+ 0, // Down arrow
+ 0, // Page down
+ 0, // Insert key
+ 0, // Delete key
+ 0, 0, 0,
+ 0, // F11
+ 0, // F12
+ 0, // Other keys
};
char *handle_shift(int scan_code)
{
- char *current_keymap = keymap;
- if (shift_pressed) current_keymap = shift_keymap;
+ char *current_keymap = keymap;
+ if (shift_pressed)
+ current_keymap = shift_keymap;
- if ((scan_code & 0x80) == 0) { // PRESS
- // TODO: Fix caps lock deactivation when pressing shift while (locked) shifted
- if (current_keymap[scan_code] == 14 || (current_keymap[scan_code] == 15 && !shift_pressed)) {
- shift_pressed = 1;
- } else if (current_keymap[scan_code] == 15 && shift_pressed) {
- shift_pressed = 0;
- }
- } else { // RELEASE
- char key = current_keymap[scan_code];
- if (key == 14) shift_pressed = 0;
- }
+ if ((scan_code & 0x80) == 0) { // PRESS
+ // TODO: Fix caps lock deactivation when pressing shift while (locked) shifted
+ if (current_keymap[scan_code] == 14 ||
+ (current_keymap[scan_code] == 15 && !shift_pressed)) {
+ shift_pressed = 1;
+ } else if (current_keymap[scan_code] == 15 && shift_pressed) {
+ shift_pressed = 0;
+ }
+ } else { // RELEASE
+ char key = current_keymap[scan_code];
+ if (key == 14)
+ shift_pressed = 0;
+ }
- return current_keymap;
+ return current_keymap;
}
void keyboard_handler(struct regs *r)
{
- unsigned char scan_code;
+ unsigned char scan_code;
- scan_code = inb(0x60);
- char *current_keymap = handle_shift(scan_code);
+ scan_code = inb(0x60);
+ char *current_keymap = handle_shift(scan_code);
- if ((scan_code & 0x80) == 0) { // PRESS
- if (current_keymap[scan_code] == 17)
- control_pressed = 1;
+ if ((scan_code & 0x80) == 0) { // PRESS
+ if (current_keymap[scan_code] == 17)
+ control_pressed = 1;
- if (control_pressed && current_keymap[scan_code] == 'l') {
- vesa_clear();
- return;
- }
+ if (control_pressed && current_keymap[scan_code] == 'l') {
+ vesa_clear();
+ return;
+ }
- keyboard_char_buffer = current_keymap[scan_code];
- keyboard_buffer[strlen(keyboard_buffer)] = keyboard_char_buffer;
- } else { // RELEASE
- if (current_keymap[scan_code] == (int) 0xffffffb5) // TODO: IDK WHY -107?!
- control_pressed = 0;
- }
+ keyboard_char_buffer = current_keymap[scan_code];
+ keyboard_buffer[strlen(keyboard_buffer)] = keyboard_char_buffer;
+ } else { // RELEASE
+ if (current_keymap[scan_code] == (int)0xffffffb5) // TODO: IDK WHY -107?!
+ control_pressed = 0;
+ }
}
void keyboard_acknowledge()
{
- while (inb(0x60) != 0xfa);
+ while (inb(0x60) != 0xfa)
+ ;
}
void keyboard_rate()
{
- outb(0x60, 0xF3);
- keyboard_acknowledge();
- outb(0x60, 0x0); // Rate{00000} Delay{00} 0
+ outb(0x60, 0xF3);
+ keyboard_acknowledge();
+ outb(0x60, 0x0); // Rate{00000} Delay{00} 0
}
void keyboard_clear_buffer()
{
- kfree(keyboard_buffer);
- keyboard_buffer = (char *) kmalloc(4096); // 4KiB
+ kfree(keyboard_buffer);
+ keyboard_buffer = (char *)kmalloc(4096); // 4KiB
}
// Installs the keyboard handler into IRQ1
void keyboard_install()
{
- keyboard_clear_buffer();
- keyboard_rate();
- irq_install_handler(1, keyboard_handler);
- shift_pressed = 0;
- info("Installed keyboard handler");
+ keyboard_clear_buffer();
+ keyboard_rate();
+ irq_install_handler(1, keyboard_handler);
+ shift_pressed = 0;
+ info("Installed keyboard handler");
}