Moved source to kernel directory

3 files changed, 167 insertions, 0 deletions

diff --git a/src/kernel/input/input.h b/src/kernel/input/input.h
new file mode 100644
index 0000000..60d2f79
--- /dev/null
+++ b/src/kernel/input/input.h
@@ -0,0 +1,10 @@
+#ifndef MELVIX_INPUT_H
+#define MELVIX_INPUT_H
+
+void mouse_install();
+
+char get_mouse(int n);
+
+void keyboard_install();
+
+#endif
diff --git a/src/kernel/input/ps2/keyboard.c b/src/kernel/input/ps2/keyboard.c
new file mode 100644
index 0000000..ae17675
--- /dev/null
+++ b/src/kernel/input/ps2/keyboard.c
@@ -0,0 +1,50 @@
+#include "../../interrupts/interrupts.h"
+#include "../../io/io.h"
+#include "../../graphics/graphics.h"
+
+unsigned 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',
+        0 /*C*/, 'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', '\'', '`', 0 /*LS*/,
+        '\\', 'z', 'x', 'c', 'v', 'b', 'n', 'm', ',', '.', '/', 0 /*RS*/, '*',
+        0, // Alt key
+        ' ', // Space bar
+        0, // 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
+};
+
+void keyboard_handler(struct regs *r) {
+    unsigned char scan_code;
+
+    scan_code = receive(0x60);
+
+    if (scan_code & 0x80) {
+        // Release
+    } else {
+        terminal_put_char(keymap[scan_code]);
+    }
+}
+
+/* Installs the keyboard handler into IRQ1 */
+void keyboard_install() {
+    irq_install_handler(1, keyboard_handler);
+}
diff --git a/src/kernel/input/ps2/mouse.c b/src/kernel/input/ps2/mouse.c
new file mode 100644
index 0000000..49c5a6c
--- /dev/null
+++ b/src/kernel/input/ps2/mouse.c
@@ -0,0 +1,107 @@
+#include "../../io/io.h"
+#include "../../interrupts/interrupts.h"
+
+char mouse_cycle = 0;
+signed char mouse_byte[3], mouse_ex[3];
+signed char mouse_x = 0;
+signed char mouse_y = 0;
+int mouse_but_1 = 0;
+int mouse_but_2 = 0;
+int mm_n[3] = {0, 0, 0,};
+
+void mouse_handler(struct regs *a_r) {
+    switch (mouse_cycle) {
+        case 0:
+            mouse_byte[0] = receive(0x60);
+            mouse_cycle++;
+            break;
+        case 1:
+            mouse_byte[1] = receive(0x60);
+            mouse_cycle++;
+            break;
+        case 2:
+            mouse_byte[2] = receive(0x60);
+            mouse_x = mouse_byte[1];
+            mouse_y = mouse_byte[2];
+            mouse_but_1 = (mouse_byte[0] % 2);
+            mouse_but_2 = ((mouse_byte[0] % 4) - (mouse_byte[0] % 2)) / 2;
+            mouse_cycle = 0;
+            mouse_ex[0] = mouse_byte[0];
+            mm_n[0] = 1;
+            mouse_ex[1] = mouse_byte[1];
+            mm_n[1] = 1;
+            mouse_ex[2] = mouse_byte[2];
+            mm_n[2] = 1;
+            break;
+        default:
+            break;
+    }
+}
+
+inline void mouse_wait(char a_type) {
+    unsigned int _time_out = 100000;
+    if (a_type == 0) {
+        while (_time_out--) {
+            if ((receive(0x64) & 1) == 1) {
+                return;
+            }
+        }
+        return;
+    } else {
+        while (_time_out--) {
+            if ((receive(0x64) & 2) == 0) {
+                return;
+            }
+        }
+        return;
+    }
+}
+
+inline void mouse_write(char a_write) {
+    mouse_wait(1);
+    send(0x64, 0xD4);
+    mouse_wait(1);
+    send(0x60, a_write);
+}
+
+char mouse_read() {
+    mouse_wait(0);
+    return receive(0x60);
+}
+
+void mouse_install() {
+    char _status;
+
+    // Enable auxiliary mouse device
+    mouse_wait(1);
+    send(0x64, 0xA8);
+
+    // Enable interrupts
+    mouse_wait(1);
+    send(0x64, 0x20);
+    mouse_wait(0);
+    _status = (receive(0x60) | 2);
+    mouse_wait(1);
+    send(0x64, 0x60);
+    mouse_wait(1);
+    send(0x60, _status);
+
+    // Use default settings
+    mouse_write(0xF6);
+    mouse_read();
+
+    // Enable mouse
+    mouse_write(0xF4);
+    mouse_read();
+
+    // Setup the mouse handler
+    irq_install_handler(2, mouse_handler);
+}
+
+char get_mouse(int n) {
+    if (mm_n[n] == 1) {
+        mm_n[n] = 0;
+        return mouse_ex[n];
+    } else
+        return 0;
+}
\ No newline at end of file