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