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/*
* Copyright (c) 2006-2023, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2021-11-11 GuEe-GUI the first version
* 2023-02-25 GuEe-GUI using virtio dm
*/
#ifndef __VIRTIO_INPUT_H__
#define __VIRTIO_INPUT_H__
#include <drivers/core/dm.h>
enum virtio_input_config_select
{
VIRTIO_INPUT_CFG_UNSET = 0x00,
VIRTIO_INPUT_CFG_ID_NAME = 0x01,
VIRTIO_INPUT_CFG_ID_SERIAL = 0x02,
VIRTIO_INPUT_CFG_ID_DEVIDS = 0x03,
VIRTIO_INPUT_CFG_PROP_BITS = 0x10,
VIRTIO_INPUT_CFG_EV_BITS = 0x11,
VIRTIO_INPUT_CFG_ABS_INFO = 0x12,
};
struct virtio_input_absinfo
{
rt_le32_t min; /* Minimum value for the axis */
rt_le32_t max; /* Maximum value for the axis */
rt_le32_t fuzz; /* Fuzz value that is used to filter noise from the event stream */
rt_le32_t flat; /* Within this value will be discarded by joydev interface and reported as 0 instead */
rt_le32_t res; /* Resolution for the values reported for the axis */
};
struct virtio_input_devids
{
rt_le16_t bustype;
rt_le16_t vendor;
rt_le16_t product;
rt_le16_t version;
};
rt_packed(struct virtio_input_config
{
rt_uint8_t select;
rt_uint8_t subsel;
rt_uint8_t size;
rt_uint8_t reserved[5];
union
{
char string[128];
rt_uint8_t bitmap[128];
struct virtio_input_absinfo abs;
struct virtio_input_devids ids;
};
});
struct virtio_input_event
{
rt_le16_t type;
rt_le16_t code;
rt_le32_t value;
};
#endif /* __VIRTIO_INPUT_H__ */
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