From 871480933a1c28f8a9fed4c4d34d06c439a7a422 Mon Sep 17 00:00:00 2001 From: Srikant Patnaik Date: Sun, 11 Jan 2015 12:28:04 +0530 Subject: Moved, renamed, and deleted files The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure. --- ANDROID_3.4.5/arch/x86/boot/tty.c | 139 -------------------------------------- 1 file changed, 139 deletions(-) delete mode 100644 ANDROID_3.4.5/arch/x86/boot/tty.c (limited to 'ANDROID_3.4.5/arch/x86/boot/tty.c') diff --git a/ANDROID_3.4.5/arch/x86/boot/tty.c b/ANDROID_3.4.5/arch/x86/boot/tty.c deleted file mode 100644 index def2451f..00000000 --- a/ANDROID_3.4.5/arch/x86/boot/tty.c +++ /dev/null @@ -1,139 +0,0 @@ -/* -*- linux-c -*- ------------------------------------------------------- * - * - * Copyright (C) 1991, 1992 Linus Torvalds - * Copyright 2007 rPath, Inc. - All Rights Reserved - * Copyright 2009 Intel Corporation; author H. Peter Anvin - * - * This file is part of the Linux kernel, and is made available under - * the terms of the GNU General Public License version 2. - * - * ----------------------------------------------------------------------- */ - -/* - * Very simple screen and serial I/O - */ - -#include "boot.h" - -int early_serial_base; - -#define XMTRDY 0x20 - -#define TXR 0 /* Transmit register (WRITE) */ -#define LSR 5 /* Line Status */ - -/* - * These functions are in .inittext so they can be used to signal - * error during initialization. - */ - -static void __attribute__((section(".inittext"))) serial_putchar(int ch) -{ - unsigned timeout = 0xffff; - - while ((inb(early_serial_base + LSR) & XMTRDY) == 0 && --timeout) - cpu_relax(); - - outb(ch, early_serial_base + TXR); -} - -static void __attribute__((section(".inittext"))) bios_putchar(int ch) -{ - struct biosregs ireg; - - initregs(&ireg); - ireg.bx = 0x0007; - ireg.cx = 0x0001; - ireg.ah = 0x0e; - ireg.al = ch; - intcall(0x10, &ireg, NULL); -} - -void __attribute__((section(".inittext"))) putchar(int ch) -{ - if (ch == '\n') - putchar('\r'); /* \n -> \r\n */ - - bios_putchar(ch); - - if (early_serial_base != 0) - serial_putchar(ch); -} - -void __attribute__((section(".inittext"))) puts(const char *str) -{ - while (*str) - putchar(*str++); -} - -/* - * Read the CMOS clock through the BIOS, and return the - * seconds in BCD. - */ - -static u8 gettime(void) -{ - struct biosregs ireg, oreg; - - initregs(&ireg); - ireg.ah = 0x02; - intcall(0x1a, &ireg, &oreg); - - return oreg.dh; -} - -/* - * Read from the keyboard - */ -int getchar(void) -{ - struct biosregs ireg, oreg; - - initregs(&ireg); - /* ireg.ah = 0x00; */ - intcall(0x16, &ireg, &oreg); - - return oreg.al; -} - -static int kbd_pending(void) -{ - struct biosregs ireg, oreg; - - initregs(&ireg); - ireg.ah = 0x01; - intcall(0x16, &ireg, &oreg); - - return !(oreg.eflags & X86_EFLAGS_ZF); -} - -void kbd_flush(void) -{ - for (;;) { - if (!kbd_pending()) - break; - getchar(); - } -} - -int getchar_timeout(void) -{ - int cnt = 30; - int t0, t1; - - t0 = gettime(); - - while (cnt) { - if (kbd_pending()) - return getchar(); - - t1 = gettime(); - if (t0 != t1) { - cnt--; - t0 = t1; - } - } - - return 0; /* Timeout! */ -} - -- cgit