113 lines
3.3 KiB
C
113 lines
3.3 KiB
C
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/****************************************************************************
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* drivers/virtio/virtio-input.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __DRIVERS_VIRTIO_VIRTIO_INPUT_H
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#define __DRIVERS_VIRTIO_VIRTIO_INPUT_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <nuttx/compiler.h>
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#include <stdint.h>
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#ifdef CONFIG_DRIVERS_VIRTIO_INPUT
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#define VIRTIO_INPUT_CFG_UNSET 0x00
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#define VIRTIO_INPUT_CFG_ID_NAME 0x01
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#define VIRTIO_INPUT_CFG_ID_SERIAL 0x02
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#define VIRTIO_INPUT_CFG_ID_DEVIDS 0x03
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#define VIRTIO_INPUT_CFG_PROP_BITS 0x10
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#define VIRTIO_INPUT_CFG_EV_BITS 0x11
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#define VIRTIO_INPUT_CFG_ABS_INFO 0x12
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#define VIRTIO_INPUT_CHUNK_SIZE 128 /* 128 bytes per chunk */
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/****************************************************************************
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* Public Types
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****************************************************************************/
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begin_packed_struct struct virtio_input_absinfo
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{
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uint32_t min;
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uint32_t max;
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uint32_t fuzz;
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uint32_t flat;
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uint32_t res;
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} end_packed_struct;
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begin_packed_struct struct virtio_input_devids
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{
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uint16_t bustype;
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uint16_t vendor;
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uint16_t product;
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uint16_t version;
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} end_packed_struct;
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begin_packed_struct struct virtio_input_config
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{
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uint8_t select;
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uint8_t subsel;
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uint8_t size;
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uint8_t reserved[5];
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union
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{
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char string[VIRTIO_INPUT_CHUNK_SIZE];
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uint8_t bitmap[VIRTIO_INPUT_CHUNK_SIZE];
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struct virtio_input_absinfo abs;
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struct virtio_input_devids ids;
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} u;
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} end_packed_struct;
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begin_packed_struct struct virtio_input_event
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{
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uint16_t type;
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uint16_t code;
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uint32_t value;
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} end_packed_struct;
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#ifdef __cplusplus
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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int virtio_register_input_driver(void);
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#undef EXTERN
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#ifdef __cplusplus
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}
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#endif
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#endif /* CONFIG_DRIVERS_VIRTIO_INPUT */
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#endif /* __DRIVERS_VIRTIO_VIRTIO_INPUT_H */
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