mirror of
https://github.com/openharmony/drivers_framework.git
synced 2026-08-27 02:42:28 -04:00
haizhouyang
98 lines
1.9 KiB
C
98 lines
1.9 KiB
C
/*
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* Copyright (c) 2022 Huawei Device Co., Ltd.
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*
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* HDF is dual licensed: you can use it either under the terms of
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* the GPL, or the BSD license, at your option.
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* See the LICENSE file in the root of this repository for complete details.
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*/
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#ifndef CAN_IF_H
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#define CAN_IF_H
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#include "platform_if.h"
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#define CAN_DATA_LEN 8
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enum CanBusState {
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CAN_BUS_RESET,
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CAN_BUS_READY,
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CAN_BUS_BUSY,
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CAN_BUS_STOP,
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CAN_BUS_SLEEP,
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CAN_BUS_ERROR,
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CAN_BUS_INVALID,
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};
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enum CanBusMode {
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CAN_BUS_NORMAL,
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CAN_BUS_LOOPBACK,
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};
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struct CanMsg {
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union {
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uint32_t id11 : 11;
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uint32_t id29 : 29;
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uint32_t id : 29;
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};
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uint32_t ide : 1;
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uint32_t rtr : 1;
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uint32_t padding : 1;
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uint8_t dlc;
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uint8_t data[CAN_DATA_LEN];
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int32_t error;
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const struct CanFilter *filter;
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};
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enum CanEvent {
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CAN_EVENT_MSG_RECEIVED,
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CAN_EVENT_MSG_SENT,
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CAN_EVENT_ERROR,
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};
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enum CanFilterType {
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CAN_FILTER_HW = 1,
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};
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struct CanFilter {
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uint32_t rtr : 1;
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uint32_t ide : 1;
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uint32_t id : 29;
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uint32_t rtrMask : 1;
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uint32_t ideMask : 1;
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uint32_t idMask : 29;
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uint32_t type : 2;
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};
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struct CanConfig {
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uint32_t speed;
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uint8_t mode;
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};
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int32_t CanBusOpen(int32_t number, DevHandle *handle);
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void CanBusClose(DevHandle handle);
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int32_t CanBusSendMsg(DevHandle handle, const struct CanMsg *msg);
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int32_t CanBusReadMsg(DevHandle handle, struct CanMsg *msg, uint32_t tms);
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int32_t CanBusAddFilter(DevHandle handle, const struct CanFilter *filter);
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int32_t CanBusDelFilter(DevHandle handle, const struct CanFilter *filter);
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int32_t CanBusSetCfg(DevHandle handle, const struct CanConfig *cfg);
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int32_t CanBusGetCfg(DevHandle handle, struct CanConfig *cfg);
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int32_t CanBusGetState(DevHandle handle);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* CAN_IF_H */
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