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/* $Id: kbd-std.c,v 1.2 1999/06/11 14:29:45 ralf Exp $ * * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive * for more details. * * Routines for standard PC style keyboards accessible via I/O ports. * * Copyright (C) 1998, 1999 by Ralf Baechle */ #include <linux/ioport.h> #include <linux/sched.h> #include <linux/pc_keyb.h> #include <asm/keyboard.h> #include <asm/io.h> #define KEYBOARD_IRQ 1 #define AUX_IRQ 12 static void std_kbd_request_region(void) { request_region(0x60, 16, "keyboard"); } static int std_kbd_request_irq(void (*handler)(int, void *, struct pt_regs *)) { return request_irq(KEYBOARD_IRQ, handler, 0, "keyboard", NULL); } static int std_aux_request_irq(void (*handler)(int, void *, struct pt_regs *)) { return request_irq(AUX_IRQ, handler, 0, "PS/2 Mouse", NULL); } static void std_aux_free_irq(void) { free_irq(AUX_IRQ, NULL); } static unsigned char std_kbd_read_input(void) { return inb(KBD_DATA_REG); } static void std_kbd_write_output(unsigned char val) { int status; do { status = inb(KBD_CNTL_REG); } while (status & KBD_STAT_IBF); outb(val, KBD_DATA_REG); } static void std_kbd_write_command(unsigned char val) { int status; do { status = inb(KBD_CNTL_REG); } while (status & KBD_STAT_IBF); outb(val, KBD_CNTL_REG); } static unsigned char std_kbd_read_status(void) { return inb(KBD_STATUS_REG); } struct kbd_ops std_kbd_ops = { std_kbd_request_region, std_kbd_request_irq, std_aux_request_irq, std_aux_free_irq, std_kbd_read_input, std_kbd_write_output, std_kbd_write_command, std_kbd_read_status }; |