Adafruit_Learning_System_Gu.../DMX_NeoPixels/Rdm_Uid.h
2024-12-11 09:39:52 -08:00

101 lines
2.7 KiB
C

// SPDX-FileCopyrightText: 2013 W.A. van der Meeren <danny@illogic.nl>
//
// SPDX-License-Identifier: LGPL-3.0-or-later
/*
Rdm_Uid.h - DMX library for Arduino with RDM (Remote Device Management) support
Copyright (c) 2013 W.A. van der Meeren <danny@illogic.nl>. All right reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 3 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef RDM_UID_H_
#define RDM_UID_H_
#include <inttypes.h>
//
//48 bit UID Representation to identify RDM transponders
//
struct RDM_Uid {
void Initialize ( uint16_t m, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4 )
{
m_id[0] = ((uint8_t) (((uint16_t) (m)) >> 8));
m_id[1] = (uint8_t)m;
m_id[2] = d1;
m_id[3] = d2;
m_id[4] = d3;
m_id[5] = d4;
}
void copy ( const RDM_Uid &orig )
{
for ( uint8_t i = 0; i < 6; i++ )
m_id[i] = orig.m_id[i];
}
bool operator == ( const RDM_Uid & orig ) const
{
for ( uint8_t i = 0; i < 6; i++ )
if ( m_id[i] != orig.m_id[i] )
return false;
return true;
}
bool operator != ( const RDM_Uid & orig ) const
{
return !(*this == orig);
}
bool operator < ( const RDM_Uid & v ) const
{
for ( uint8_t i = 0; i < 6; i++ )
if ( m_id[i] != v.m_id[i] )
return ( m_id[i] < v.m_id[i] );
}
bool operator > ( const RDM_Uid & v )
{
for ( uint8_t i = 0; i < 6; i++ )
if ( m_id[i] != v.m_id[i] )
return ( m_id[i] > v.m_id[i] );
}
//
// match_mid = manufacturer id to match
//
bool isBroadcast ( uint8_t match_mid[2] )
{
// Check for genuine broadcast on device part
for ( uint8_t i = 2; i < 6; i++ )
if ( m_id[i] != 0xff )
return false;
// Broadcast or manufacturer designated broadcast
if ( (m_id[0] == 0xff && m_id[1] == 0xff) ||
(m_id[0] == match_mid[0] && m_id[1] == match_mid[1]) )
return true;
// No broadcast
return false;
}
uint8_t m_id[6]; //16bit manufacturer id + 32 bits device id
};
#endif /* RDM_UID_H_ */