refactor, new arch dirs, (wip) page alloc on write, hsv screen (convert to userspace later), other fixes

1 files changed, 0 insertions, 47 deletions

diff --git a/src/arch/amd64/serial.c b/src/arch/amd64/serial.c
deleted file mode 100644
index fe21629..0000000
--- a/src/arch/amd64/serial.c
+++ /dev/null
@@ -1,47 +0,0 @@
-#include <serial.h>
-#include "bindings.h"
-
-#define PORT 0x3F8
-
-// initialize the specified COM port for serial
-// see https://wiki.osdev.org/Serial_Ports
-// and https://en.wikibooks.org/wiki/Serial_Programming/8250_UART_Programming
-int serial_init(void) {
-	outb(PORT + 1, 0x00); // disable interrupts
-	outb(PORT + 3, 0x80); // enable DLAB (divisor latch access bit)
-	outb(PORT + 0, 0x03); // (lo) Set baud divisor to 3 38400 baud
-	outb(PORT + 1, 0x00); // (hi)
-	outb(PORT + 3, 0x03); // disable DLAB, set 8 bits per word, one stop bit, no parity
-	outb(PORT + 2, 0xC7); // enable and clear FIFOs, set to maximum threshold
-	// outb(port + 4, 0x0B); // TODO copied this from osdev wiki but i don't think you need it here
-	outb(PORT + 4, 0x1E); // set in loopback mode for test
-	outb(PORT + 0, 0xAE); // test by sending 0xAE
-
-	uint8_t response = inb(PORT + 0);
-	if (response != 0xAE) {
-		// TODO panic here?
-		return -1;
-	}
-
-	// disable loopback, enable IRQs
-	outb(PORT + 4, 0x0F);
-	return 0;
-}
-
-uint8_t serial_in(void) {
-	// wait for data to be available
-	while ((inb(PORT + 5) & 0x01) == 0);
-	return inb(PORT);
-}
-
-void serial_out(uint8_t ch) {
-	// wait for output to be free
-	while ((inb(PORT + 5) & 0x20) == 0);
-	outb(PORT, ch);
-}
-
-void serial_out_str(const char *str) {
-	for (; *str != '\0'; str++) {
-		serial_out(*str);
-	}
-}