| Tom Rix | dd2d1cc | 2009-05-15 23:48:36 +0200 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (c) 2009 Wind River Systems, Inc. |
| 3 | * Tom Rix <Tom.Rix@windriver.com> |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or |
| 6 | * modify it under the terms of the GNU General Public License as |
| 7 | * published by the Free Software Foundation; either version 2 of |
| 8 | * the License, or (at your option) any later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program; if not, write to the Free Software |
| 17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| 18 | * MA 02111-1307 USA |
| 19 | * |
| 20 | * This work is derived from the linux 2.6.27 kernel source |
| 21 | * To fetch, use the kernel repository |
| 22 | * git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git |
| 23 | * Use the v2.6.27 tag. |
| 24 | * |
| 25 | * Below is the original's header including its copyright |
| 26 | * |
| 27 | * linux/arch/arm/plat-omap/gpio.c |
| 28 | * |
| 29 | * Support functions for OMAP GPIO |
| 30 | * |
| 31 | * Copyright (C) 2003-2005 Nokia Corporation |
| 32 | * Written by Juha Yrjölä <juha.yrjola@nokia.com> |
| 33 | * |
| 34 | * This program is free software; you can redistribute it and/or modify |
| 35 | * it under the terms of the GNU General Public License version 2 as |
| 36 | * published by the Free Software Foundation. |
| 37 | */ |
| 38 | #ifndef _GPIO_H |
| 39 | #define _GPIO_H |
| 40 | |
| 41 | #define OMAP24XX_GPIO_REVISION 0x0000 |
| 42 | #define OMAP24XX_GPIO_SYSCONFIG 0x0010 |
| 43 | #define OMAP24XX_GPIO_SYSSTATUS 0x0014 |
| 44 | #define OMAP24XX_GPIO_IRQSTATUS1 0x0018 |
| 45 | #define OMAP24XX_GPIO_IRQSTATUS2 0x0028 |
| 46 | #define OMAP24XX_GPIO_IRQENABLE2 0x002c |
| 47 | #define OMAP24XX_GPIO_IRQENABLE1 0x001c |
| 48 | #define OMAP24XX_GPIO_WAKE_EN 0x0020 |
| 49 | #define OMAP24XX_GPIO_CTRL 0x0030 |
| 50 | #define OMAP24XX_GPIO_OE 0x0034 |
| 51 | #define OMAP24XX_GPIO_DATAIN 0x0038 |
| 52 | #define OMAP24XX_GPIO_DATAOUT 0x003c |
| 53 | #define OMAP24XX_GPIO_LEVELDETECT0 0x0040 |
| 54 | #define OMAP24XX_GPIO_LEVELDETECT1 0x0044 |
| 55 | #define OMAP24XX_GPIO_RISINGDETECT 0x0048 |
| 56 | #define OMAP24XX_GPIO_FALLINGDETECT 0x004c |
| 57 | #define OMAP24XX_GPIO_DEBOUNCE_EN 0x0050 |
| 58 | #define OMAP24XX_GPIO_DEBOUNCE_VAL 0x0054 |
| 59 | #define OMAP24XX_GPIO_CLEARIRQENABLE1 0x0060 |
| 60 | #define OMAP24XX_GPIO_SETIRQENABLE1 0x0064 |
| 61 | #define OMAP24XX_GPIO_CLEARWKUENA 0x0080 |
| 62 | #define OMAP24XX_GPIO_SETWKUENA 0x0084 |
| 63 | #define OMAP24XX_GPIO_CLEARDATAOUT 0x0090 |
| 64 | #define OMAP24XX_GPIO_SETDATAOUT 0x0094 |
| 65 | |
| 66 | struct gpio_bank { |
| 67 | void *base; |
| 68 | int method; |
| 69 | }; |
| 70 | |
| 71 | #define METHOD_GPIO_24XX 4 |
| 72 | |
| 73 | /* This is the interface */ |
| 74 | |
| 75 | /* Request a gpio before using it */ |
| 76 | int omap_request_gpio(int gpio); |
| 77 | /* Reset and free a gpio after using it */ |
| 78 | void omap_free_gpio(int gpio); |
| 79 | /* Sets the gpio as input or output */ |
| 80 | void omap_set_gpio_direction(int gpio, int is_input); |
| 81 | /* Set or clear a gpio output */ |
| 82 | void omap_set_gpio_dataout(int gpio, int enable); |
| 83 | /* Get the value of a gpio input */ |
| 84 | int omap_get_gpio_datain(int gpio); |
| 85 | |
| 86 | #endif /* _GPIO_H_ */ |