1 files changed, 0 insertions, 77 deletions
diff --git a/uart.c b/uart.c
deleted file mode 100644
index b8946da..0000000
--- a/uart.c
+++ /dev/null
@@ -1,77 +0,0 @@
-// Intel 8250 serial port (UART).
-
-#include "types.h"
-#include "defs.h"
-#include "param.h"
-#include "traps.h"
-#include "spinlock.h"
-#include "sleeplock.h"
-#include "fs.h"
-#include "file.h"
-#include "mmu.h"
-#include "proc.h"
-#include "x86.h"
-
-#define COM1    0x3f8
-
-static int uart;    // is there a uart?
-
-void
-uartinit(void)
-{
-  char *p;
-
-  // Turn off the FIFO
-  outb(COM1+2, 0);
-
-  // 9600 baud, 8 data bits, 1 stop bit, parity off.
-  outb(COM1+3, 0x80);    // Unlock divisor
-  outb(COM1+0, 115200/9600);
-  outb(COM1+1, 0);
-  outb(COM1+3, 0x03);    // Lock divisor, 8 data bits.
-  outb(COM1+4, 0);
-  outb(COM1+1, 0x01);    // Enable receive interrupts.
-
-  // If status is 0xFF, no serial port.
-  if(inb(COM1+5) == 0xFF)
-    return;
-  uart = 1;
-
-  // Acknowledge pre-existing interrupt conditions;
-  // enable interrupts.
-  inb(COM1+2);
-  inb(COM1+0);
-  ioapicenable(IRQ_COM1, 0);
-
-  // Announce that we're here.
-  for(p="xv6...\n"; *p; p++)
-    uartputc(*p);
-}
-
-void
-uartputc(int c)
-{
-  int i;
-
-  if(!uart)
-    return;
-  for(i = 0; i < 128 && !(inb(COM1+5) & 0x20); i++)
-    microdelay(10);
-  outb(COM1+0, c);
-}
-
-static int
-uartgetc(void)
-{
-  if(!uart)
-    return -1;
-  if(!(inb(COM1+5) & 0x01))
-    return -1;
-  return inb(COM1+0);
-}
-
-void
-uartintr(void)
-{
-  consoleintr(uartgetc);
-}