initial cleanup and mapping
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118
devLib/piGlow.c
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118
devLib/piGlow.c
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/*
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* piGlow.c:
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* Easy access to the Pimoroni PiGlow board.
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*
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* Copyright (c) 2013 Gordon Henderson.
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***********************************************************************
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* This file is part of wiringPi:
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* https://projects.drogon.net/raspberry-pi/wiringpi/
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*
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* wiringPi is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser 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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* wiringPi 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 Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with wiringPi. If not, see <http://www.gnu.org/licenses/>.
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***********************************************************************
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*/
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#include <wiringPi.h>
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#include <sn3218.h>
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#include "piGlow.h"
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#define PIGLOW_BASE 577
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static int leg0 [6] = { 6, 7, 8, 5, 4, 9 } ;
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static int leg1 [6] = { 17, 16, 15, 13, 11, 10 } ;
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static int leg2 [6] = { 0, 1, 2, 3, 14, 12 } ;
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/*
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* piGlow1:
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* Light up an individual LED
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*********************************************************************************
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*/
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void piGlow1 (const int leg, const int ring, const int intensity)
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{
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int *legLeds ;
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if ((leg < 0) || (leg > 2)) return ;
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if ((ring < 0) || (ring > 5)) return ;
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/**/ if (leg == 0)
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legLeds = leg0 ;
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else if (leg == 1)
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legLeds = leg1 ;
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else
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legLeds = leg2 ;
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analogWrite (PIGLOW_BASE + legLeds [ring], intensity) ;
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}
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/*
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* piGlowLeg:
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* Light up all 6 LEDs on a leg
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*********************************************************************************
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*/
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void piGlowLeg (const int leg, const int intensity)
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{
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int i ;
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int *legLeds ;
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if ((leg < 0) || (leg > 2))
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return ;
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/**/ if (leg == 0)
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legLeds = leg0 ;
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else if (leg == 1)
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legLeds = leg1 ;
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else
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legLeds = leg2 ;
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for (i = 0 ; i < 6 ; ++i)
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analogWrite (PIGLOW_BASE + legLeds [i], intensity) ;
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}
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/*
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* piGlowRing:
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* Light up 3 LEDs in a ring. Ring 0 is the outermost, 5 the innermost
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*********************************************************************************
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*/
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void piGlowRing (const int ring, const int intensity)
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{
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if ((ring < 0) || (ring > 5))
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return ;
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analogWrite (PIGLOW_BASE + leg0 [ring], intensity) ;
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analogWrite (PIGLOW_BASE + leg1 [ring], intensity) ;
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analogWrite (PIGLOW_BASE + leg2 [ring], intensity) ;
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}
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/*
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* piGlowSetup:
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* Initialise the board & remember the pins we're using
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*********************************************************************************
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*/
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void piGlowSetup (int clear)
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{
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sn3218Setup (PIGLOW_BASE) ;
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if (clear)
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{
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piGlowLeg (0, 0) ;
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piGlowLeg (1, 0) ;
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piGlowLeg (2, 0) ;
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}
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}
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