Adding code

13 files changed, 141 insertions, 0 deletions

diff --git a/include/06.keyboard/keyboard00.c b/include/06.keyboard/keyboard00.c
new file mode 100644
index 0000000..13fd550
--- /dev/null
+++ b/include/06.keyboard/keyboard00.c
@@ -0,0 +1,3 @@
+#include<types.h>
+#include<asm.h>
+#include<stdio.h>
diff --git a/include/06.keyboard/keyboard01.c b/include/06.keyboard/keyboard01.c
new file mode 100644
index 0000000..50d7c07
--- /dev/null
+++ b/include/06.keyboard/keyboard01.c
@@ -0,0 +1,7 @@
+#define BUFFER_SIZE 200
+#define BUFFER_LOG 200
+char buffer[BUFFER_LOG][BUFFER_SIZE];
+size_t buffer_size[BUFFER_LOG];
+size_t buffer_current=0;
+size_t buffer_all=0;
+size_t buffer_index=0;
diff --git a/include/06.keyboard/keyboard02.c b/include/06.keyboard/keyboard02.c
new file mode 100644
index 0000000..239c874
--- /dev/null
+++ b/include/06.keyboard/keyboard02.c
@@ -0,0 +1,7 @@
+#define PIC1_COMMAND_PORT 0x20
+#define PIC1_DATA_PORT 0x21
+#define PIC2_COMMAND_PORT 0xA0
+#define PIC2_DATA_PORT 0xA1
+// IO Ports for Keyboard
+#define KEYBOARD_DATA_PORT 0x60
+#define KEYBOARD_STATUS_PORT 0x64
diff --git a/include/06.keyboard/keyboard03.c b/include/06.keyboard/keyboard03.c
new file mode 100644
index 0000000..3322fd7
--- /dev/null
+++ b/include/06.keyboard/keyboard03.c
@@ -0,0 +1,6 @@
+void previous_field(void);
+void tty(char *buffer);
+void prompt(void);
+void clear();
+void us_en(char keymap[]);
+void us_en_shift(char keymap[]);
diff --git a/include/06.keyboard/keyboard04.c b/include/06.keyboard/keyboard04.c
new file mode 100644
index 0000000..cc6e7d5
--- /dev/null
+++ b/include/06.keyboard/keyboard04.c
@@ -0,0 +1,6 @@
+char charcode[256];
+char shift_charcode[256];
+bool ispressed[128];
+#define lshift ispressed[0x2A]
+#define rshift ispressed[0x36]
+#define lctrl ispressed[0x1D]
diff --git a/include/06.keyboard/keyboard05.c b/include/06.keyboard/keyboard05.c
new file mode 100644
index 0000000..5c089ce
--- /dev/null
+++ b/include/06.keyboard/keyboard05.c
@@ -0,0 +1,5 @@
+void init_keyboard()
+{
+    us_en(charcode);
+    us_en_shift(shift_charcode);
+}
diff --git a/include/06.keyboard/keyboard06.c b/include/06.keyboard/keyboard06.c
new file mode 100644
index 0000000..55e04b8
--- /dev/null
+++ b/include/06.keyboard/keyboard06.c
@@ -0,0 +1,6 @@
+void deletelast()
+{
+    previous_field();
+    printf(" ");
+    previous_field();
+}
diff --git a/include/06.keyboard/keyboard07.c b/include/06.keyboard/keyboard07.c
new file mode 100644
index 0000000..480abb1
--- /dev/null
+++ b/include/06.keyboard/keyboard07.c
@@ -0,0 +1,8 @@
+void backspace()
+{
+    if(buffer_index<=0) return;
+
+    deletelast();
+    buffer[buffer_current][--buffer_index]='\0';
+    return;
+}
diff --git a/include/06.keyboard/keyboard08.c b/include/06.keyboard/keyboard08.c
new file mode 100644
index 0000000..822e038
--- /dev/null
+++ b/include/06.keyboard/keyboard08.c
@@ -0,0 +1,18 @@
+void enter()
+{
+    printf("\n");
+    if(buffer_index>0)
+    {
+	tty(buffer[buffer_current]);
+	buffer_size[buffer_current]=buffer_index;
+	if(buffer_current==buffer_all) buffer_current=(++buffer_all);
+	else
+	{
+	    for(size_t i=0;i<BUFFER_SIZE;i++) buffer[buffer_all][i]='\0';
+	    buffer_current=buffer_all;
+	}
+	buffer_index=0;
+    }
+    prompt();
+    return;
+}
diff --git a/include/06.keyboard/keyboard09.c b/include/06.keyboard/keyboard09.c
new file mode 100644
index 0000000..33bc64b
--- /dev/null
+++ b/include/06.keyboard/keyboard09.c
@@ -0,0 +1,5 @@
+void space()
+{
+    buffer[buffer_current][buffer_index++]=' ';
+    printf(" ");
+}
diff --git a/include/06.keyboard/keyboard10.c b/include/06.keyboard/keyboard10.c
new file mode 100644
index 0000000..5c6d048
--- /dev/null
+++ b/include/06.keyboard/keyboard10.c
@@ -0,0 +1,11 @@
+void keyup()
+{
+    if(buffer_current>0)
+    {
+	buffer_size[buffer_current]=buffer_index;
+	for(size_t i=0;i<buffer_index;i++) deletelast();
+	buffer_current--;
+	buffer_index=buffer_size[buffer_current];
+	printf("%s",buffer[buffer_current]);
+    }
+}
diff --git a/include/06.keyboard/keyboard11.c b/include/06.keyboard/keyboard11.c
new file mode 100644
index 0000000..50841fa
--- /dev/null
+++ b/include/06.keyboard/keyboard11.c
@@ -0,0 +1,11 @@
+void keydown()
+{
+    if(buffer_current<buffer_all)
+    {
+	buffer_size[buffer_current]=buffer_index;
+	for(size_t i=0;i<buffer_index;i++) deletelast();
+	buffer_current++;
+	buffer_index=buffer_size[buffer_current];
+	printf("%s",buffer[buffer_current]);
+    }
+}
diff --git a/include/06.keyboard/keyboard12.c b/include/06.keyboard/keyboard12.c
new file mode 100644
index 0000000..a0a8a0f
--- /dev/null
+++ b/include/06.keyboard/keyboard12.c
@@ -0,0 +1,48 @@
+void keyboard_handler()
+{
+    ioport_out(PIC1_COMMAND_PORT, 0x20);
+    uint8_t status = ioport_in(KEYBOARD_STATUS_PORT);
+
+    if (status & 0x1)
+    {
+	uint8_t keycode = ioport_in(KEYBOARD_DATA_PORT);
+	if(keycode<0x80)
+	{
+	    ispressed[keycode]=1;
+	    if(keycode==0x0E) backspace();
+	    else if(keycode==0x1C) enter();
+	    else if(keycode==0x39) space();
+	    else if(keycode==72) keyup();
+	    else if(keycode==80) keydown();
+	    else if(keycode==75) keyleft();
+	    else if(keycode==77) keyright();
+	    else
+	    {
+		char c=charcode[keycode];
+		if(c!=' ')
+		{
+		    if(lctrl)
+		    {
+			if(c=='l')
+			{
+			    clear();
+			    prompt();
+			    printf("%s",buffer[buffer_current]);
+			    return;
+			}
+		    }
+		    if(lshift||rshift)
+		    {
+			c=shift_charcode[keycode];
+		    }
+		    buffer[buffer_current][buffer_index++]=c;
+		    printf("%c",c);
+		}
+	    }
+	}
+	else
+	{
+	    ispressed[keycode-0x80]=0;
+	}
+    }
+}