add terminal_getkey

to access to sub sub folder

Makefile

@@ -2,7 +2,7 @@ SRCDIR = src
 OBJDIR = obj
 BUILDDIR = build
 
-SRC := $(wildcard $(SRCDIR)/**/*.c)
+SRC := $(shell find $(SRCDIR) -name '*.c')
 OBJ := $(patsubst $(SRCDIR)/%.c,$(OBJDIR)/%.o,$(SRC))
 
 CC = i386-elf-gcc

headers/sys/io.h

@@ -1,4 +1,16 @@
 #pragma once
 
-inline uint8_t inb(uint16_t port);
-inline void outb(uint16_t port, uint8_t val);
+static inline void outb(uint16_t port, uint8_t val)
+{
+    __asm__ volatile ( "outb %b0, %w1" : : "a"(val), "Nd"(port) : "memory");
+}
+
+static inline uint8_t inb(uint16_t port)
+{
+    uint8_t ret;
+    __asm__ volatile ( "inb %w1, %b0"
+                   : "=a"(ret)
+                   : "Nd"(port)
+                   : "memory");
+    return ret;
+}

headers/terminal.h

@@ -30,3 +30,86 @@ int terminal_putchar(char c);
 int terminal_write(const char* data, size_t size);
 int terminal_writestring(const char* data);
 int terminal_writelong(long number);
+
+#define KEYBOARD_PORT 0x60
+
+#define KEY_A 0x1E
+#define KEY_B 0x30
+#define KEY_C 0x2E
+#define KEY_D 0x20
+#define KEY_E 0x12
+#define KEY_F 0x21
+#define KEY_G 0x22
+#define KEY_H 0x23
+#define KEY_I 0x17
+#define KEY_J 0x24
+#define KEY_K 0x25
+#define KEY_L 0x26
+#define KEY_M 0x32
+#define KEY_N 0x31
+#define KEY_O 0x18
+#define KEY_P 0x19
+#define KEY_Q 0x10
+#define KEY_R 0x13
+#define KEY_S 0x1F
+#define KEY_T 0x14
+#define KEY_U 0x16
+#define KEY_V 0x2F
+#define KEY_W 0x11
+#define KEY_X 0x2D
+#define KEY_Y 0x15
+#define KEY_Z 0x2C
+#define KEY_1 0x02
+#define KEY_2 0x03
+#define KEY_3 0x04
+#define KEY_4 0x05
+#define KEY_5 0x06
+#define KEY_6 0x07
+#define KEY_7 0x08
+#define KEY_8 0x09
+#define KEY_9 0x0A
+#define KEY_0 0x0B
+#define KEY_MINUS 0x0C
+#define KEY_EQUAL 0x0D
+#define KEY_SQUARE_OPEN_BRACKET 0x1A
+#define KEY_SQUARE_CLOSE_BRACKET 0x1B
+#define KEY_SEMICOLON 0x27
+#define KEY_BACKSLASH 0x2B
+#define KEY_COMMA 0x33
+#define KEY_DOT 0x34
+#define KEY_FORESLHASH 0x35
+#define KEY_F1 0x3B
+#define KEY_F2 0x3C
+#define KEY_F3 0x3D
+#define KEY_F4 0x3E
+#define KEY_F5 0x3F
+#define KEY_F6 0x40
+#define KEY_F7 0x41
+#define KEY_F8 0x42
+#define KEY_F9 0x43
+#define KEY_F10 0x44
+#define KEY_F11 0x85
+#define KEY_F12 0x86
+#define KEY_BACKSPACE 0x0E
+#define KEY_DELETE 0x53
+#define KEY_DOWN 0x50
+#define KEY_END 0x4F
+#define KEY_ENTER 0x1C
+#define KEY_ESC 0x01
+#define KEY_HOME 0x47
+#define KEY_INSERT 0x52
+#define KEY_KEYPAD_5 0x4C
+#define KEY_KEYPAD_MUL 0x37
+#define KEY_KEYPAD_Minus 0x4A
+#define KEY_KEYPAD_PLUS 0x4E
+#define KEY_KEYPAD_DIV 0x35
+#define KEY_LEFT 0x4B
+#define KEY_PAGE_DOWN 0x51
+#define KEY_PAGE_UP 0x49
+#define KEY_PRINT_SCREEN 0x37
+#define KEY_RIGHT 0x4D
+#define KEY_SPACE 0x39
+#define KEY_TAB 0x0F
+#define KEY_UP 0x48
+
+uint8_t terminal_getkey();

src/sys/io/inb.c

@@ -1,10 +0,0 @@
-
-inline uint8_t inb(uint16_t port)
-{
-    uint8_t ret;
-    __asm__ volatile ( "inb %w1, %b0"
-                   : "=a"(ret)
-                   : "Nd"(port)
-                   : "memory");
-    return ret;
-}

src/sys/io/outb.c

@@ -1,4 +0,0 @@
-inline void outb(uint16_t port, uint8_t val)
-{
-    __asm__ volatile ( "outb %b0, %w1" : : "a"(val), "Nd"(port) : "memory");
-}

src/terminal/get.c

@@ -0,0 +1,15 @@
+#include "terminal.h"
+#include "sys/io.h"
+#include "kprintf.h"
+
+uint8_t terminal_getkey()
+{
+    static uint8_t prev_scan_code = 0;
+    uint8_t scan_code;
+
+    scan_code = inb(KEYBOARD_PORT);
+    if (scan_code != prev_scan_code && prev_scan_code != 0)
+        kprintf(0, "%d", scan_code);
+    prev_scan_code = scan_code;
+    return scan_code;
+}

src/terminal/put.c

@@ -16,8 +16,8 @@ static inline uint16_t vga_entry(unsigned char uc, uint8_t color)
 	return (uint16_t) uc | (uint16_t) color << 8;
 }
 
-static const size_t VGA_WIDTH = 80;
-static const size_t VGA_HEIGHT = 25;
+#define VGA_WIDTH 80
+#define VGA_HEIGHT 25
 
 size_t terminal_row;
 size_t terminal_column;