diff options
Diffstat (limited to 'include/asm-arm/arch-omap/gpio.h')
| -rw-r--r-- | include/asm-arm/arch-omap/gpio.h | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/include/asm-arm/arch-omap/gpio.h b/include/asm-arm/arch-omap/gpio.h new file mode 100644 index 0000000..fad2fc9 --- /dev/null +++ b/include/asm-arm/arch-omap/gpio.h @@ -0,0 +1,69 @@ +/* + * linux/include/asm-arm/arch-omap/gpio.h + * + * OMAP GPIO handling defines and functions + * + * Copyright (C) 2003 Nokia Corporation + * + * Written by Juha Yrjölä <juha.yrjola@nokia.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#ifndef __ASM_ARCH_OMAP_GPIO_H +#define __ASM_ARCH_OMAP_GPIO_H + +#include <asm/arch/hardware.h> +#include <asm/arch/irqs.h> +#include <asm/io.h> + +#define OMAP_MPUIO_BASE 0xfffb5000 +#define OMAP_MPUIO_INPUT_LATCH 0x00 +#define OMAP_MPUIO_OUTPUT 0x04 +#define OMAP_MPUIO_IO_CNTL 0x08 +#define OMAP_MPUIO_KBR_LATCH 0x10 +#define OMAP_MPUIO_KBC 0x14 +#define OMAP_MPUIO_GPIO_EVENT_MODE 0x18 +#define OMAP_MPUIO_GPIO_INT_EDGE 0x1c +#define OMAP_MPUIO_KBD_INT 0x20 +#define OMAP_MPUIO_GPIO_INT 0x24 +#define OMAP_MPUIO_KBD_MASKIT 0x28 +#define OMAP_MPUIO_GPIO_MASKIT 0x2c +#define OMAP_MPUIO_GPIO_DEBOUNCING 0x30 +#define OMAP_MPUIO_LATCH 0x34 + +#define OMAP_MPUIO(nr) (OMAP_MAX_GPIO_LINES + (nr)) +#define OMAP_GPIO_IS_MPUIO(nr) ((nr) >= OMAP_MAX_GPIO_LINES) + +#define OMAP_GPIO_IRQ(nr) (OMAP_GPIO_IS_MPUIO(nr) ? \ + IH_MPUIO_BASE + ((nr) & 0x0f) : \ + IH_GPIO_BASE + ((nr) & 0x3f)) + +/* For EDGECTRL */ +#define OMAP_GPIO_NO_EDGE 0x00 +#define OMAP_GPIO_FALLING_EDGE 0x01 +#define OMAP_GPIO_RISING_EDGE 0x02 +#define OMAP_GPIO_BOTH_EDGES 0x03 + +extern int omap_gpio_init(void); /* Call from board init only */ +extern int omap_request_gpio(int gpio); +extern void omap_free_gpio(int gpio); +extern void omap_set_gpio_direction(int gpio, int is_input); +extern void omap_set_gpio_dataout(int gpio, int enable); +extern int omap_get_gpio_datain(int gpio); +extern void omap_set_gpio_edge_ctrl(int gpio, int edge); + +#endif |