| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * linux/include/asm-arm/arch-omap/gpio.h |
| 3 | * |
| 4 | * OMAP GPIO handling defines and functions |
| 5 | * |
| 6 | * Copyright (C) 2003 Nokia Corporation |
| 7 | * |
| 8 | * Written by Juha Yrjölä <juha.yrjola@nokia.com> |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or modify |
| 11 | * it under the terms of the GNU General Public License as published by |
| 12 | * the Free Software Foundation; either version 2 of the License, or |
| 13 | * (at your option) any later version. |
| 14 | * |
| 15 | * This program is distributed in the hope that it will be useful, |
| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 18 | * GNU General Public License for more details. |
| 19 | * |
| 20 | * You should have received a copy of the GNU General Public License |
| 21 | * along with this program; if not, write to the Free Software |
| 22 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 23 | * |
| 24 | */ |
| 25 | |
| 26 | #ifndef __ASM_ARCH_OMAP_GPIO_H |
| 27 | #define __ASM_ARCH_OMAP_GPIO_H |
| 28 | |
| 29 | #include <asm/arch/hardware.h> |
| 30 | #include <asm/arch/irqs.h> |
| 31 | #include <asm/io.h> |
| 32 | |
| 33 | #define OMAP_MPUIO_BASE 0xfffb5000 |
| 34 | #define OMAP_MPUIO_INPUT_LATCH 0x00 |
| 35 | #define OMAP_MPUIO_OUTPUT 0x04 |
| 36 | #define OMAP_MPUIO_IO_CNTL 0x08 |
| 37 | #define OMAP_MPUIO_KBR_LATCH 0x10 |
| 38 | #define OMAP_MPUIO_KBC 0x14 |
| 39 | #define OMAP_MPUIO_GPIO_EVENT_MODE 0x18 |
| 40 | #define OMAP_MPUIO_GPIO_INT_EDGE 0x1c |
| 41 | #define OMAP_MPUIO_KBD_INT 0x20 |
| 42 | #define OMAP_MPUIO_GPIO_INT 0x24 |
| 43 | #define OMAP_MPUIO_KBD_MASKIT 0x28 |
| 44 | #define OMAP_MPUIO_GPIO_MASKIT 0x2c |
| 45 | #define OMAP_MPUIO_GPIO_DEBOUNCING 0x30 |
| 46 | #define OMAP_MPUIO_LATCH 0x34 |
| 47 | |
| 48 | #define OMAP_MPUIO(nr) (OMAP_MAX_GPIO_LINES + (nr)) |
| 49 | #define OMAP_GPIO_IS_MPUIO(nr) ((nr) >= OMAP_MAX_GPIO_LINES) |
| 50 | |
| 51 | #define OMAP_GPIO_IRQ(nr) (OMAP_GPIO_IS_MPUIO(nr) ? \ |
| 52 | IH_MPUIO_BASE + ((nr) & 0x0f) : \ |
| 53 | IH_GPIO_BASE + ((nr) & 0x3f)) |
| 54 | |
| 55 | /* For EDGECTRL */ |
| 56 | #define OMAP_GPIO_NO_EDGE 0x00 |
| 57 | #define OMAP_GPIO_FALLING_EDGE 0x01 |
| 58 | #define OMAP_GPIO_RISING_EDGE 0x02 |
| 59 | #define OMAP_GPIO_BOTH_EDGES 0x03 |
| 60 | |
| 61 | extern int omap_gpio_init(void); /* Call from board init only */ |
| 62 | extern int omap_request_gpio(int gpio); |
| 63 | extern void omap_free_gpio(int gpio); |
| 64 | extern void omap_set_gpio_direction(int gpio, int is_input); |
| 65 | extern void omap_set_gpio_dataout(int gpio, int enable); |
| 66 | extern int omap_get_gpio_datain(int gpio); |
| 67 | extern void omap_set_gpio_edge_ctrl(int gpio, int edge); |
| 68 | |
| 69 | #endif |