LCOM1920-T02G10

/* $NetBSD: gpio.h,v 1.14 2015/09/06 06:01:02 dholland Exp $ */

/*        $OpenBSD: gpio.h,v 1.7 2008/11/26 14:51:20 mbalmer Exp $        */

/*

 * Copyright (c) 2009, 2011 Marc Balmer <marc@msys.ch>

 * Copyright (c) 2004 Alexander Yurchenko <grange@openbsd.org>

 *

 * Permission to use, copy, modify, and distribute this software for any

 * purpose with or without fee is hereby granted, provided that the above

 * copyright notice and this permission notice appear in all copies.

 *

 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES

 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF

 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR

 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES

 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN

 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF

 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

 */

#ifndef _SYS_GPIO_H_

#define _SYS_GPIO_H_

#include <sys/ioccom.h>

#include <sys/time.h>

/* GPIO pin states */

#define GPIO_PIN_LOW                0x00        /* low level (logical 0) */

#define GPIO_PIN_HIGH                0x01        /* high level (logical 1) */

/* Max name length of a pin */

#define GPIOMAXNAME                64

/* GPIO pin configuration flags */

#define GPIO_PIN_INPUT                0x0001        /* input direction */

#define GPIO_PIN_OUTPUT                0x0002        /* output direction */

#define GPIO_PIN_INOUT                0x0004        /* bi-directional */

#define GPIO_PIN_OPENDRAIN        0x0008        /* open-drain output */

#define GPIO_PIN_PUSHPULL        0x0010        /* push-pull output */

#define GPIO_PIN_TRISTATE        0x0020        /* output disabled */

#define GPIO_PIN_PULLUP                0x0040        /* internal pull-up enabled */

#define GPIO_PIN_PULLDOWN        0x0080        /* internal pull-down enabled */

#define GPIO_PIN_INVIN                0x0100        /* invert input */

#define GPIO_PIN_INVOUT                0x0200        /* invert output */

#define GPIO_PIN_USER                0x0400        /* user != 0 can access */

#define GPIO_PIN_PULSATE        0x0800        /* pulsate in hardware */

#define GPIO_PIN_SET                0x8000        /* set for securelevel access */

/* GPIO controller description */

struct gpio_info {

        int gpio_npins;                /* total number of pins available */

};

/* GPIO pin request (read/write/toggle) */

struct gpio_req {

        char                gp_name[GPIOMAXNAME];        /* pin name */

        int                gp_pin;                        /* pin number */

        int                gp_value;                /* value */

};

/* GPIO pin configuration */

struct gpio_set {

        char        gp_name[GPIOMAXNAME];

        int        gp_pin;

        int        gp_caps;

        int        gp_flags;

        char        gp_name2[GPIOMAXNAME];        /* new name */

};

/* Attach device drivers that use GPIO pins */

struct gpio_attach {

        char                ga_dvname[16];        /* device name */

        int                ga_offset;        /* pin number */

        uint32_t        ga_mask;        /* binary mask */

        uint32_t        ga_flags;        /* driver dependent flags */

};

/* gpio(4) API */

#define GPIOINFO                _IOR('G', 0, struct gpio_info)

#define GPIOSET                        _IOWR('G', 5, struct gpio_set)

#define GPIOUNSET                _IOWR('G', 6, struct gpio_set)

#define GPIOREAD                _IOWR('G', 7, struct gpio_req)

#define GPIOWRITE                _IOWR('G', 8, struct gpio_req)

#define GPIOTOGGLE                _IOWR('G', 9, struct gpio_req)

#define GPIOATTACH                _IOWR('G', 10, struct gpio_attach)

#ifdef COMPAT_50

/* Old structure to attach/detach devices */

struct gpio_attach50 {

        char                ga_dvname[16];        /* device name */

        int                ga_offset;        /* pin number */

        uint32_t        ga_mask;        /* binary mask */

};

/* GPIO pin control (old API) */

struct gpio_pin_ctl {

        int gp_pin;                /* pin number */

        int gp_caps;                /* pin capabilities (read-only) */

        int gp_flags;                /* pin configuration flags */

};

/* GPIO pin operation (read/write/toggle) (old API) */

struct gpio_pin_op {

        int gp_pin;                /* pin number */

        int gp_value;                /* value */

};

/* the old API */

#define GPIOPINREAD                _IOWR('G', 1, struct gpio_pin_op)

#define GPIOPINWRITE                _IOWR('G', 2, struct gpio_pin_op)

#define GPIOPINTOGGLE                _IOWR('G', 3, struct gpio_pin_op)

#define GPIOPINCTL                _IOWR('G', 4, struct gpio_pin_ctl)

#define GPIOATTACH50                _IOWR('G', 10, struct gpio_attach50)

#define GPIODETACH50                _IOWR('G', 11, struct gpio_attach50)

#define GPIODETACH                _IOWR('G', 11, struct gpio_attach)

#endif        /* COMPAT_50 */

#endif        /* !_SYS_GPIO_H_ */