Devices using the VFS structure. Basic keyboard handler.

1 files changed, 150 insertions, 0 deletions

diff --git a/src/kernel/dev/keyboard.cpp b/src/kernel/dev/keyboard.cpp
new file mode 100644
index 0000000..479996d
--- /dev/null
+++ b/src/kernel/dev/keyboard.cpp
@@ -0,0 +1,150 @@
+#include "keyboard.h"
+
+#include <ui/vt.h>
+
+int ctrlkeys[] = {
+/* 0x00 */	0, KB_ESCAPE, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, KB_BACKSPACE, KB_TAB,
+/* 0x10 */	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, KB_ENTER, KB_LCTRL, 0, 0,
+/* 0x20 */	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, KB_LSHIFT, 0, 0, 0, 0, 0,
+/* 0x30 */	0, 0, 0, 0, 0, 0, KB_RSHIFT, 0, KB_ALT, 0, KB_CAPSLOCK, KB_F1, KB_F2, KB_F3, KB_F4, KB_F5,
+/* 0x40 */	KB_F6, KB_F7, KB_F8, KB_F9, KB_F10, KB_NUMLOCK, KB_SCRLLOCK, KB_KPHOME, KB_KPUP, KB_KPPGUP, 0, KB_KPLEFT, KB_KP5, KB_KPRIGHT, 0, KB_KPEND,
+/* 0x50 */	KB_KPDOWN, KB_KPPGDOWN, KB_KPINS, KB_KPDEL, KB_SYSREQ, 0, 0, KB_F11, KB_F12, 0, 0, 0, 0, 0, 0, 0,
+/* 0x60 */	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+/* 0x70 */	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+/* 0x80 */	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+/* 0x90 */	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, KB_ENTER, KB_RCTRL, 0, 0,
+/* 0xA0 */	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+/* 0xB0 */	0, 0, 0, 0, 0, 0, 0, KB_PRTSCN, KB_ALTGR, 0, 0, 0, 0, 0, 0, 0,
+/* 0xC0 */	0, 0, 0, 0, 0, 0, 0, KB_HOME, KB_UP, KB_PGUP, 0, KB_LEFT, 0, KB_RIGHT, 0, KB_END,
+/* 0xD0 */	KB_DOWN, KB_PGDOWN, KB_INS, KB_DEL, 0, 0, 0, 0, 0, 0, 0, KB_LSUPER, KB_RSUPER, KB_MENU, 0, 0,
+/* 0xE0 */	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+/* 0xF0 */	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+};
+
+static keymap default_km = {
+	{		// normal
+	/* 0x00 */	0, 0, '&', L'é', '"', '\'', '(', '-', L'è', '_', L'ç', L'à', ')', '=', 0, 0, 
+	/* 0x10 */	'a', 'z', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '^', '$', 0, 0, 'q', 's',
+	/* 0x20 */	'd', 'f', 'g', 'h', 'j', 'k', 'l', 'm', L'ù', L'²', 0, '*', 'w', 'x', 'c', 'v',
+	/* 0x30 */	'b', 'n', ',', ';', ':', '!', 0, '*', 0, ' ', 0, 0, 0, 0, 0, 0,
+	/* 0x40 */	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, '-', 0, 0, 0, '+', 0, 
+	/* 0x50 */  0, 0, 0, 0, 0, 0, '<', 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	/* 0x60 */	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	/* 0x70 */	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+	},
+	{		// shift
+	/* 0x00 */	0, 0, '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', L'°', '+', 0, 0, 
+	/* 0x10 */	'A', 'Z', 'E', 'R', 'T', 'Y', 'U', 'I', 'O', 'P', L'¨', L'£', 0, 0, 'Q', 'S',
+	/* 0x20 */	'D', 'F', 'G', 'H', 'J', 'K', 'L', 'M', '%', '~', 0, L'µ', 'W', 'X', 'C', 'V',
+	/* 0x30 */	'B', 'N', '?', '.', '/', L'§', 0, '*', 0, ' ', 0, 0, 0, 0, 0, 0,
+	/* 0x40 */	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, '-', 0, 0, 0, '+', 0,
+	/* 0x50 */  0, 0, 0, 0, 0, 0, '>', 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	/* 0x60 */	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	/* 0x70 */	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+	},
+	{		// caps
+	/* 0x00 */	0, 0, '&', L'É', '"', '\'', '(', '-', L'È', '_', L'Ç', L'À', ')', '=', 0, 0, 
+	/* 0x10 */	'A', 'Z', 'E', 'R', 'T', 'Y', 'U', 'I', 'O', 'P', L'¨', '$', 0, 0, 'Q', 'S',
+	/* 0x20 */	'D', 'F', 'G', 'H', 'J', 'K', 'L', 'M', L'Ù', L'²', 0, '*', 'W', 'X', 'C', 'V',
+	/* 0x30 */	'B', 'N', ',', ';', ':', '!', 0, '*', 0, ' ', 0, 0, 0, 0, 0, 0,
+	/* 0x40 */	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, '-', 0, 0, 0, '+', 0,
+	/* 0x50 */  0, 0, 0, 0, 0, 0, '>', 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	/* 0x60 */	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	/* 0x70 */	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+	},
+	{		// alt gr
+	/* 0x00 */	0, 0, L'¹', '~', '#', '{', '[', '|', '`', '\\', '^', '@', ']', '}', 0, 0, 
+	/* 0x10 */	L'æ', L'«', L'€', L'¶', L'ŧ', L'←', L'↓', L'→', 
+				L'ø', L'þ', L'¨', L'¤', 0, 0, '@', L'ß',
+	/* 0x20 */	L'ð', L'đ', L'ŋ', L'ħ', 'j', L'ĸ', L'ł', L'µ',
+			 	'^', L'¬', 0, '`', L'ł', L'»', L'¢', L'“',
+	/* 0x30 */	L'”', 'n', L'´', ';', L'·', '!', 0, '*', 0, ' ', 0, 0, 0, 0, 0, 0,
+	/* 0x40 */	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, '-', 0, 0, 0, '+', 0,
+	/* 0x50 */  0, 0, 0, 0, 0, 0, '|', 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	/* 0x60 */	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	/* 0x70 */	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	},
+	{		// shift + alt gr
+	/* 0x00 */	0, 0, L'¡', L'⅛', L'£', '$', L'⅜', L'⅝', L'⅞', L'™', L'±', L'°', L'¿', L'˛', 0, 0, 
+	/* 0x10 */	L'Æ', '<', L'¢', L'®', L'Ŧ', L'¥', L'↑', L'ı', L'Ø', L'Þ', L'°', L'¯', 0, 0, L'Ω', L'§',
+	/* 0x20 */	L'Ð', L'ª', L'Ŋ', L'Ħ', 'J', '&', L'Ł', L'º', L'ˇ', L'¬', 0, L'˘', L'Ł', '>', L'©', L'‘',
+	/* 0x30 */	L'’', 'N', L'˝', L'×', L'÷', L'˙', 0, '*', 0, ' ', 0, 0, 0, 0, 0, 0,
+	/* 0x40 */	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, '-', 0, 0, 0, '+', 0,
+	/* 0x50 */  0, 0, 0, 0, 0, 0, L'¦', 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	/* 0x60 */	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	/* 0x70 */	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	}
+};
+
+keyboard::keyboard(node *parent) : node(parent, FT_DEV) {
+	dev_type = DT_KEYBOARD;
+
+	km = &default_km;
+	num = true;
+	caps = scroll = false;
+	shift = altgr = alt = ctrl = false;
+}
+
+void keyboard::handle(int scancode, bool pressed) {
+	keypress kp;
+	kp.scancode = scancode;
+	kp.pressed = pressed;
+	kp.command = ctrlkeys[scancode];
+	if (kp.command == 0) kp.command = ctrlkeys[scancode & 0x7F];
+
+	if (kp.command == 0) {
+		kp.command = (alt ? KB_CMD_ALT : 0) | (ctrl ? KB_CMD_CTRL : 0);
+		if (shift xor caps) {
+			if (altgr) {
+				kp.character = km->shiftaltgr[scancode];
+			} else {
+				if (shift) {
+					kp.character = km->shift[scancode];
+				} else {
+					kp.character = km->caps[scancode];
+				}
+			}
+		} else {
+			if (altgr) {
+				kp.character = km->altgr[scancode];
+			} else {
+				kp.character = km->normal[scancode];
+			}
+		}
+	} else if (kp.command >= KB_KPDEL && kp.command <= KB_KPPGUP && num) {
+		if (kp.command == KB_KPDEL) {
+			kp.character = '.';
+		} else {
+			kp.character = '0' + kp.command - KB_KPINS;
+		}
+		kp.command = (alt ? KB_CMD_ALT : 0) | (ctrl ? KB_CMD_CTRL : 0);
+	} else if (kp.command == KB_ALT) {
+		alt = pressed;
+	} else if (kp.command == KB_ALTGR) {
+		altgr = pressed;
+	} else if (kp.command == KB_LCTRL || kp.command == KB_RCTRL) {
+		ctrl = pressed;
+	} else if (kp.command == KB_LSHIFT || kp.command == KB_RSHIFT) {
+		shift = pressed;
+	} else if (kp.command == KB_CAPSLOCK) {
+		caps = !caps;
+		updateLeds();
+	} else if (kp.command == KB_NUMLOCK) {
+		num = !num;
+		updateLeds();
+	} else if (kp.command == KB_SCRLLOCK) {
+		scroll = !scroll;
+		updateLeds();
+	} else if (kp.command == KB_TAB) {
+		kp.character = '\t';
+	} else if (kp.command == KB_BACKSPACE) {
+		kp.character = '\b';
+	} else if (kp.command == KB_ENTER) {
+		kp.character = '\n';
+	}
+
+	// process keypress
+	if (kp.character && kp.pressed) {
+		ke_vt->put(kp.character);
+	}
+}