|  | /* linux/arch/arm/mach-s3c2400/gpio.c | 
|  | * | 
|  | * Copyright (c) 2006 Lucas Correia Villa Real <lucasvr@gobolinux.org> | 
|  | * | 
|  | * S3C2400 GPIO support | 
|  | * | 
|  | * This program is free software; you can redistribute it and/or modify | 
|  | * it under the terms of the GNU General Public License as published by | 
|  | * the Free Software Foundation; either version 2 of the License, or | 
|  | * (at your option) any later version. | 
|  | * | 
|  | * This program is distributed in the hope that it will be useful, | 
|  | * but WITHOUT ANY WARRANTY; without even the implied warranty of | 
|  | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the | 
|  | * GNU General Public License for more details. | 
|  | * | 
|  | * You should have received a copy of the GNU General Public License | 
|  | * along with this program; if not, write to the Free Software | 
|  | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA | 
|  | */ | 
|  |  | 
|  | #include <linux/kernel.h> | 
|  | #include <linux/init.h> | 
|  | #include <linux/module.h> | 
|  | #include <linux/interrupt.h> | 
|  | #include <linux/ioport.h> | 
|  | #include <linux/io.h> | 
|  |  | 
|  | #include <mach/hardware.h> | 
|  | #include <asm/irq.h> | 
|  |  | 
|  | #include <mach/regs-gpio.h> | 
|  |  | 
|  | int s3c2400_gpio_getirq(unsigned int pin) | 
|  | { | 
|  | if (pin < S3C2410_GPE(0) || pin > S3C2400_GPE(7)) | 
|  | return -EINVAL;  /* not valid interrupts */ | 
|  |  | 
|  | return (pin - S3C2410_GPE(0)) + IRQ_EINT0; | 
|  | } | 
|  |  | 
|  | EXPORT_SYMBOL(s3c2400_gpio_getirq); |