1/* linux/arch/arm/mach-s3c2400/gpio.c 2 * 3 * Copyright (c) 2006 Lucas Correia Villa Real <lucasvr@gobolinux.org> 4 * 5 * S3C2400 GPIO support 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License as published by 9 * the Free Software Foundation; either version 2 of the License, or 10 * (at your option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 20*/ 21 22#include <linux/kernel.h> 23#include <linux/init.h> 24#include <linux/module.h> 25#include <linux/interrupt.h> 26#include <linux/ioport.h> 27#include <linux/io.h> 28 29#include <mach/hardware.h> 30#include <asm/irq.h> 31 32#include <mach/regs-gpio.h> 33 34int s3c2400_gpio_getirq(unsigned int pin) 35{ 36 if (pin < S3C2410_GPE(0) || pin > S3C2400_GPE(7)) 37 return -EINVAL; /* not valid interrupts */ 38 39 return (pin - S3C2410_GPE(0)) + IRQ_EINT0; 40} 41 42EXPORT_SYMBOL(s3c2400_gpio_getirq); 43