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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _LINUX_VIRTIO_GPIO_H
#define _LINUX_VIRTIO_GPIO_H
#include <linux/types.h>
/* Virtio GPIO request types */
#define VIRTIO_GPIO_MSG_GET_NAMES 0x0001
#define VIRTIO_GPIO_MSG_GET_DIRECTION 0x0002
#define VIRTIO_GPIO_MSG_SET_DIRECTION 0x0003
#define VIRTIO_GPIO_MSG_GET_VALUE 0x0004
#define VIRTIO_GPIO_MSG_SET_VALUE 0x0005
/* Possible values of the status field */
#define VIRTIO_GPIO_STATUS_OK 0x0
#define VIRTIO_GPIO_STATUS_ERR 0x1
/* Direction types */
#define VIRTIO_GPIO_DIRECTION_NONE 0x00
#define VIRTIO_GPIO_DIRECTION_OUT 0x01
#define VIRTIO_GPIO_DIRECTION_IN 0x02
struct virtio_gpio_config {
__le16 ngpio;
__u8 padding[2];
__le32 gpio_names_size;
} __attribute__((packed));
/* Virtio GPIO Request / Response */
struct virtio_gpio_request {
__le16 type;
__le16 gpio;
__le32 value;
};
struct virtio_gpio_response {
__u8 status;
__u8 value;
};
struct virtio_gpio_response_get_names {
__u8 status;
__u8 value[];
};
#endif /* _LINUX_VIRTIO_GPIO_H */