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drivers: can: Add syscall handlers for CAN API

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This commit adds generic syscall handlers for the CAN API

Signed-off-by: Alexander Wachter <alexander.wachter@student.tugraz.at>
This commit is contained in:
Alexander Wachter 2018-05-03 10:52:35 +02:00 committed by Carles Cufí
parent 023e4518f2
commit d3101b1fa4
2 changed files with 52 additions and 0 deletions
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1
drivers/can/CMakeLists.txt Normal file
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zephyr_sources_ifdef(CONFIG_USERSPACE can_handlers.c)

51
drivers/can/can_handlers.c Normal file
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/*
* Copyright (c) 2018 Alexander Wachter
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <syscall_handler.h>
#include <can.h>
_SYSCALL_HANDLER(can_configure, dev, mode, bitrate) {
_SYSCALL_OBJ(dev, K_OBJ_DRIVER_CAN);
return _impl_can_configure((struct device *)dev, mode, bitrate);
}
_SYSCALL_HANDLER(can_send, dev, msg) {
_SYSCALL_OBJ(dev, K_OBJ_DRIVER_CAN);
/* We need to be able to read the data */
_SYSCALL_MEMORY_ARRAY_READ(msg->data, msg->dlc, sizeof(msg->data));
return _impl_can_send((struct device *)dev, (struct can_msg *)msg)
}
_SYSCALL_HANDLER(can_attach_msgq, dev, msgq, filter) {
_SYSCALL_OBJ(dev, K_OBJ_DRIVER_CAN);
/* We need to be able to write the data */
_SYSCALL_MEMORY_WRITE(msgq, sizeof(msgq));
_SYSCALL_MEMORY_WRITE(msgq->buffer_start,
msgq->buffer_end - msgq->buffer_start);
return _impl_can_attach_msgq((struct device *)dev,
(struct k_msgq *)msgq,
(const struct can_filter *) filter);
}
_SYSCALL_HANDLER(can_attach_isr, dev, isr, filter) {
_SYSCALL_OBJ(dev, K_OBJ_DRIVER_CAN);
return _impl_can_attach_isr((struct device *)dev,
(can_rx_callback_t)isr,
(const struct can_filter *) filter);
}
_SYSCALL_HANDLER(can_detach, dev, filter_id) {
_SYSCALL_OBJ(dev, K_OBJ_DRIVER_CAN);
return _impl_can_detach((struct device *)dev, (int)filter_id);
}