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Ben Dooksa21765a2007-02-11 18:31:01 +01001/* linux/arch/arm/mach-s3c2400/gpio.c
Lucas Correia Villa Real0ca5bc32006-02-01 21:24:23 +00002 *
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
Ben Dooks916a0022006-09-06 19:03:21 +010020*/
Lucas Correia Villa Real0ca5bc32006-02-01 21:24:23 +000021
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
Russell Kinga09e64f2008-08-05 16:14:15 +010028#include <mach/hardware.h>
Lucas Correia Villa Real0ca5bc32006-02-01 21:24:23 +000029#include <asm/irq.h>
30#include <asm/io.h>
31
Russell Kinga09e64f2008-08-05 16:14:15 +010032#include <mach/regs-gpio.h>
Lucas Correia Villa Real0ca5bc32006-02-01 21:24:23 +000033
34int s3c2400_gpio_getirq(unsigned int pin)
35{
36 if (pin < S3C2410_GPE0 || pin > S3C2400_GPE7_EINT7)
37 return -1; /* not valid interrupts */
38
39 return (pin - S3C2410_GPE0) + IRQ_EINT0;
40}
41
42EXPORT_SYMBOL(s3c2400_gpio_getirq);