101 lines
2.7 KiB
C
101 lines
2.7 KiB
C
// SPDX-FileCopyrightText: 2013 W.A. van der Meeren <danny@illogic.nl>
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//
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// SPDX-License-Identifier: LGPL-3.0-or-later
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/*
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Rdm_Uid.h - DMX library for Arduino with RDM (Remote Device Management) support
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Copyright (c) 2013 W.A. van der Meeren <danny@illogic.nl>. All right reserved.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 3 of the License, or (at your option) any later version.
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This library 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 GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef RDM_UID_H_
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#define RDM_UID_H_
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#include <inttypes.h>
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//
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//48 bit UID Representation to identify RDM transponders
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//
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struct RDM_Uid {
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void Initialize ( uint16_t m, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4 )
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{
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m_id[0] = ((uint8_t) (((uint16_t) (m)) >> 8));
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m_id[1] = (uint8_t)m;
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m_id[2] = d1;
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m_id[3] = d2;
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m_id[4] = d3;
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m_id[5] = d4;
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}
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void copy ( const RDM_Uid &orig )
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{
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for ( uint8_t i = 0; i < 6; i++ )
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m_id[i] = orig.m_id[i];
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}
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bool operator == ( const RDM_Uid & orig ) const
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{
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for ( uint8_t i = 0; i < 6; i++ )
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if ( m_id[i] != orig.m_id[i] )
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return false;
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return true;
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}
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bool operator != ( const RDM_Uid & orig ) const
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{
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return !(*this == orig);
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}
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bool operator < ( const RDM_Uid & v ) const
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{
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for ( uint8_t i = 0; i < 6; i++ )
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if ( m_id[i] != v.m_id[i] )
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return ( m_id[i] < v.m_id[i] );
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}
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bool operator > ( const RDM_Uid & v )
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{
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for ( uint8_t i = 0; i < 6; i++ )
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if ( m_id[i] != v.m_id[i] )
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return ( m_id[i] > v.m_id[i] );
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}
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//
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// match_mid = manufacturer id to match
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//
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bool isBroadcast ( uint8_t match_mid[2] )
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{
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// Check for genuine broadcast on device part
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for ( uint8_t i = 2; i < 6; i++ )
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if ( m_id[i] != 0xff )
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return false;
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// Broadcast or manufacturer designated broadcast
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if ( (m_id[0] == 0xff && m_id[1] == 0xff) ||
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(m_id[0] == match_mid[0] && m_id[1] == match_mid[1]) )
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return true;
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// No broadcast
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return false;
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}
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uint8_t m_id[6]; //16bit manufacturer id + 32 bits device id
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};
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#endif /* RDM_UID_H_ */
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