diff options
Diffstat (limited to 'arch/arm/plat-mxs/include/mach/gpio.h')
-rw-r--r-- | arch/arm/plat-mxs/include/mach/gpio.h | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/arch/arm/plat-mxs/include/mach/gpio.h b/arch/arm/plat-mxs/include/mach/gpio.h new file mode 100644 index 000000000000..7b634149ec23 --- /dev/null +++ b/arch/arm/plat-mxs/include/mach/gpio.h @@ -0,0 +1,63 @@ +/* + * Copyright (C) 1999 ARM Limited + * Copyright (C) 2009-2010 Freescale Semiconductor, Inc. + * + * 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., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#ifndef __ASM_ARCH_GPIO_H__ +#define __ASM_ARCH_GPIO_H__ + +#include <mach/hardware.h> +#include <asm-generic/gpio.h> + +#define GPIO_ID_NAME "gpio" +/* use gpiolib dispatchers */ +#define gpio_get_value __gpio_get_value +#define gpio_set_value __gpio_set_value +#define gpio_cansleep __gpio_cansleep +#define gpio_to_irq __gpio_to_irq +#define irq_to_gpio(irq) ((irq) - MXS_GPIO_IRQ_START) + +struct mxs_gpio_port; +struct mxs_gpio_chip { + int (*set_dir) (struct mxs_gpio_port *, int, unsigned int); + int (*get) (struct mxs_gpio_port *, int); + void (*set) (struct mxs_gpio_port *, int, int); + unsigned int (*get_irq_stat) (struct mxs_gpio_port *); + int (*set_irq_type) (struct mxs_gpio_port *, int, unsigned int); + void (*unmask_irq) (struct mxs_gpio_port *, int); + void (*mask_irq) (struct mxs_gpio_port *, int); + void (*ack_irq) (struct mxs_gpio_port *, int); +}; + +struct mxs_gpio_port { + int id; + int irq; + int child_irq; + struct mxs_gpio_chip *chip; + struct gpio_chip port; +}; + +extern int mxs_add_gpio_port(struct mxs_gpio_port *port); + +static inline void +mxs_set_gpio_chip(struct mxs_gpio_port *port, struct mxs_gpio_chip *chip) +{ + if (port && chip) + port->chip = chip; +} + +#endif /* __ASM_ARCH_GPIO_H__ */ |