kopia lustrzana https://github.com/OpenRTX/OpenRTX
55 wiersze
2.1 KiB
C
55 wiersze
2.1 KiB
C
/***************************************************************************
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* Copyright (C) 2020 by Federico Amedeo Izzo IU2NUO, *
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* Niccolò Izzo IU2KIN, *
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* Silvano Seva IU2KWO *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 3 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, see <http://www.gnu.org/licenses/> *
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***************************************************************************/
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#ifndef EVENT_H
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#define EVENT_H
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/**
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* This enum describes the event message type:
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* - EVENT_KBD is used to send a keypress
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* - EVENT_STATUS is used to send a status change notification
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*/
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enum eventType_t
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{
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EVENT_KBD = 0,
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EVENT_STATUS = 1
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};
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/**
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* The event message is constrained to 32 bits size
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* This is necessary to send event messages in uC OS/III Queues
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* That accept a void * type message, which is 32-bits wide on
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* ARM cortex-M MCUs
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* uC OS/III Queues are meant to send pointer to allocated data
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* But if we keep the size under 32 bits, we can sent the
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* entire message, casting it to a void * pointer.
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*/
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typedef union
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{
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struct
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{
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uint32_t type : 3,
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payload : 29;
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};
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void *value;
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}event_t;
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#endif /* EVENT_H */
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