94 lines
1.9 KiB
C
94 lines
1.9 KiB
C
/** @file
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* @brief Socket CAN definitions.
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*
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* Definitions for socket CAN support.
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*/
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/*
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* Copyright (c) 2019 Intel Corporation
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef ZEPHYR_INCLUDE_NET_SOCKET_CAN_H_
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#define ZEPHYR_INCLUDE_NET_SOCKET_CAN_H_
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#include <zephyr/types.h>
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#include <net/net_ip.h>
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#include <net/net_if.h>
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#include <drivers/can.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief Socket CAN library
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* @defgroup socket_can Network Core Library
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* @ingroup networking
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* @{
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*/
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/* Protocols of the protocol family PF_CAN */
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#define CAN_RAW 1
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/* Socket CAN options */
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#define SOL_CAN_BASE 100
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#define SOL_CAN_RAW (SOL_CAN_BASE + CAN_RAW)
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enum {
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CAN_RAW_FILTER = 1,
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};
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/* Socket CAN MTU size */
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#define CAN_MTU CAN_MAX_DLEN
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/**
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* struct sockaddr_can - The sockaddr structure for CAN sockets
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*
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*/
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struct sockaddr_can {
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sa_family_t can_family;
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int can_ifindex;
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};
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/**
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* CAN L2 driver API. Used by socket CAN.
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*/
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struct canbus_api {
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/**
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* The net_if_api must be placed in first position in this
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* struct so that we are compatible with network interface API.
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*/
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struct net_if_api iface_api;
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/** Send a CAN packet by socket */
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int (*send)(struct device *dev, struct net_pkt *pkt);
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/** Close the related CAN socket */
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void (*close)(struct device *dev, int filter_id);
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/** Set socket CAN option */
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int (*setsockopt)(struct device *dev, void *obj, int level, int optname,
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const void *optval, socklen_t optlen);
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/** Get socket CAN option */
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int (*getsockopt)(struct device *dev, void *obj, int level, int optname,
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const void *optval, socklen_t *optlen);
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};
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/* Make sure that the network interface API is properly setup inside
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* CANBUS API struct (it is the first one).
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*/
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BUILD_ASSERT(offsetof(struct canbus_api, iface_api) == 0);
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/**
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* @}
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*/
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#ifdef __cplusplus
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}
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#endif
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#endif /* ZEPHYR_INCLUDE_NET_SOCKET_CAN_H_ */
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