1 /* 2 * linux/include/asm-arm/arch-omap/gpio.h 3 * 4 * OMAP GPIO handling defines and functions 5 * 6 * Copyright (C) 2003-2005 Nokia Corporation 7 * 8 * Written by Juha Yrjl <juha.yrjola (at) 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/hardware.h> 30 #include <asm/arch/irqs.h> 31 #include <asm/io.h> 32 33 #define OMAP_MPUIO_BASE (void __iomem *)0xfffb5000 34 35 #ifdef CONFIG_ARCH_OMAP730 36 #define OMAP_MPUIO_INPUT_LATCH 0x00 37 #define OMAP_MPUIO_OUTPUT 0x02 38 #define OMAP_MPUIO_IO_CNTL 0x04 39 #define OMAP_MPUIO_KBR_LATCH 0x08 40 #define OMAP_MPUIO_KBC 0x0a 41 #define OMAP_MPUIO_GPIO_EVENT_MODE 0x0c 42 #define OMAP_MPUIO_GPIO_INT_EDGE 0x0e 43 #define OMAP_MPUIO_KBD_INT 0x10 44 #define OMAP_MPUIO_GPIO_INT 0x12 45 #define OMAP_MPUIO_KBD_MASKIT 0x14 46 #define OMAP_MPUIO_GPIO_MASKIT 0x16 47 #define OMAP_MPUIO_GPIO_DEBOUNCING 0x18 48 #define OMAP_MPUIO_LATCH 0x1a 49 #else 50 #define OMAP_MPUIO_INPUT_LATCH 0x00 51 #define OMAP_MPUIO_OUTPUT 0x04 52 #define OMAP_MPUIO_IO_CNTL 0x08 53 #define OMAP_MPUIO_KBR_LATCH 0x10 54 #define OMAP_MPUIO_KBC 0x14 55 #define OMAP_MPUIO_GPIO_EVENT_MODE 0x18 56 #define OMAP_MPUIO_GPIO_INT_EDGE 0x1c 57 #define OMAP_MPUIO_KBD_INT 0x20 58 #define OMAP_MPUIO_GPIO_INT 0x24 59 #define OMAP_MPUIO_KBD_MASKIT 0x28 60 #define OMAP_MPUIO_GPIO_MASKIT 0x2c 61 #define OMAP_MPUIO_GPIO_DEBOUNCING 0x30 62 #define OMAP_MPUIO_LATCH 0x34 63 #endif 64 65 #define OMAP_MPUIO(nr) (OMAP_MAX_GPIO_LINES + (nr)) 66 #define OMAP_GPIO_IS_MPUIO(nr) ((nr) >= OMAP_MAX_GPIO_LINES) 67 68 #define OMAP_GPIO_IRQ(nr) (OMAP_GPIO_IS_MPUIO(nr) ? \ 69 IH_MPUIO_BASE + ((nr) & 0x0f) : \ 70 IH_GPIO_BASE + (nr)) 71 72 struct omap_machine_gpio_bank { 73 int start; 74 int end; 75 76 void (*set_gpio_direction)(int gpio, int is_input); 77 void (*set_gpio_dataout)(int gpio, int enable); 78 int (*get_gpio_datain)(int gpio); 79 }; 80 81 extern int omap_gpio_init(void); /* Call from board init only */ 82 extern int omap_gpio_add_machine_gpio_bank(struct omap_machine_gpio_bank *gpio_bank); 83 extern int omap_request_gpio(int gpio); 84 extern void omap_free_gpio(int gpio); 85 extern void omap_set_gpio_direction(int gpio, int is_input); 86 extern void omap_set_gpio_dataout(int gpio, int enable); 87 extern int omap_get_gpio_datain(int gpio); 88 89 #endif 90
