Project restructure (no new code added)

Moved all header files into include/ and removed their C counterparts -> code inside .h files Also added a kernel.ld linker file since we don't have many code files in src/ now, i removed src/kernel/ only real code change is that i moved memcopy() and memset() into string.h from system.h
2026-11-03 18:22:22 +00:00 · 2024-04-14 18:27:53 +02:00
parent 60cca470b4
commit 90ac82eebc
25 changed files with 204 additions and 273 deletions
@@ -0,0 +1,97 @@
+#ifndef KEYBOARD_H
+#define KEYBOARD_H
+
+#include "irq.h"
+#include "idt.h"
+#include "system.h"
+#include "screen.h"
+#include "stdint.h"
+#include "stdbool.h"
+
+// Keycodes
+#define LEFT_SHIFT_PRESS 0x2a
+#define LEFT_SHIFT_RELEASE (LEFT_SHIFT_PRESS | 0x80)
+#define RIGHT_SHIFT_PRESS 0x36
+#define RIGHT_SHIFT_RELEASE (RIGHT_SHIFT_PRESS | 0x80)
+#define LEFT_CTRL_PRESS 0x1D
+#define LEFT_CTRL_RELEASE (LEFT_CTRL_PRESS | 0x80)
+#define RIGHT_CTRL_PRESS 0x1D
+#define RIGHT_CTRL_RELEASE (RIGHT_CTRL_PRESS | 0x80)
+#define LEFT_ALT_PRESS 0x38
+#define LEFT_ALT_RELEASE (LEFT_ALT_PRESS | 0x80)
+#define RIGHT_ALT_PRESS 0x38
+#define RIGHT_ALT_RELEASE (RIGHT_ALT_PRESS | 0x80)
+
+#define MAX_BUFFER_SIZE 256
+
+const char US_Keyboard[2][128] = {
+    {
+        0, 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, 'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', '\'', '`', 
+        0, '\\', 'z', 'x', 'c', 'v', 'b', 'n', 'm', ',', '.', '/', 0, 
+        '*', 0, ' ', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 
+        '7', '8', '9', '-', '4', '5', '6', '+', '1', '2', '3', '0', '.', // Numpad
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+    },
+    {
+        0, 27, '!', '@', '#', '$', '%', '^', '&', '*', '(', ')', '_', '+', '\b', '\t',
+        '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', '<', '>', '?', 0, '*', 0, ' ', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0, 0, 0, 0, '7', '8', '9', '-', '4', '5', '6', '+', '1', '2', '3', '0', '.',
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+    }
+};
+
+uint8_t shift = 0;
+
+uint16_t bufferLen = 0;
+char buffer[MAX_BUFFER_SIZE + 1] = { 0 };
+bool echo = false;
+uint8_t echoAttr = 0x0f;
+bool canBackspace = false;
+
+void keyboardHandler() {
+    uint8_t scancode;
+    scancode = inb(0x60);
+
+    if (scancode == LEFT_SHIFT_PRESS || scancode == RIGHT_SHIFT_PRESS) shift = 1;
+    else if (scancode == LEFT_SHIFT_RELEASE || scancode == RIGHT_SHIFT_RELEASE) shift = 0;
+
+    char c = US_Keyboard[shift][scancode];
+
+    if (scancode & 0x80) { // Keyup
+    } else if (c != 0) {
+        if (!canBackspace && c == '\b') return;
+        if (echo) putc(c, echoAttr);
+
+        buffer[bufferLen] = c;
+
+        if (c == '\b') bufferLen--;
+        else bufferLen++;
+
+        if (bufferLen > 0) canBackspace = true;
+        else canBackspace = false;
+    }
+}
+
+char* read(char terminator, uint8_t attr) {
+    bufferLen = 0;
+    echo = attr ? true : false;
+    echoAttr = attr;
+
+    while (buffer[bufferLen-1] != terminator && bufferLen < MAX_BUFFER_SIZE);
+
+    echo = false;
+    canBackspace = false;
+    buffer[bufferLen] = '\0';
+
+    return buffer;
+}
+
+void setupKeyboard() {
+    installIrqHandler(1, keyboardHandler);
+}
+
+#endif