| Lucas Correia Villa Real | 0ca5bc3 | 2006-02-01 21:24:23 +0000 | [diff] [blame] | 1 | /* linux/arch/arm/mach-s3c2410/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 | * Changelog |
| 22 | * 15-Jan-2006 LCVR Splitted from gpio.c, adding support for the S3C2400 |
| 23 | */ |
| 24 | |
| 25 | #include <linux/kernel.h> |
| 26 | #include <linux/init.h> |
| 27 | #include <linux/module.h> |
| 28 | #include <linux/interrupt.h> |
| 29 | #include <linux/ioport.h> |
| 30 | |
| 31 | #include <asm/hardware.h> |
| 32 | #include <asm/irq.h> |
| 33 | #include <asm/io.h> |
| 34 | |
| 35 | #include <asm/arch/regs-gpio.h> |
| 36 | |
| 37 | int s3c2400_gpio_getirq(unsigned int pin) |
| 38 | { |
| 39 | if (pin < S3C2410_GPE0 || pin > S3C2400_GPE7_EINT7) |
| 40 | return -1; /* not valid interrupts */ |
| 41 | |
| 42 | return (pin - S3C2410_GPE0) + IRQ_EINT0; |
| 43 | } |
| 44 | |
| 45 | EXPORT_SYMBOL(s3c2400_gpio_getirq); |