7c4b9ce1f7
Revises microkernel semaphore sub-system to allow ISRs and fibers to give a semaphore without having to define a command packet set. The microkernel server now supports a 3rd command type on its command stack, allowing a semaphore to be given in a similar manner to the one used for the existing "give event" command type. Change-Id: Ibd7fb1a77949792f72acd20a9ee304d6eabd62f7 Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
48 lines
1.3 KiB
C
48 lines
1.3 KiB
C
/* command_packet.h - command packet header file */
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/*
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* Copyright (c) 2012-2014 Wind River Systems, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* 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,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/**
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* @brief Microkernel command packet library
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*
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* A command packet is an opaque data structure that maps to a k_args without
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* exposing its innards. This library allows a subsystem that needs to define
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* a command packet the ability to do so.
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*/
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#ifndef _COMMAND_PACKET_H
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#define _COMMAND_PACKET_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <microkernel/base_api.h>
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/* define size of command packet (without exposing its internal structure) */
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#define CMD_PKT_SIZE_IN_WORDS (19)
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/* define command packet type */
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typedef uint32_t cmdPkt_t[CMD_PKT_SIZE_IN_WORDS];
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#ifdef __cplusplus
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}
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#endif
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#endif /* _COMMAND_PACKET_H */
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