| Deokgyu Yang | 2c7e86b | 2020-04-28 10:56:11 +0900 | [diff] [blame] | 1 | /* |
| 2 | * piGlow.c: |
| 3 | * Easy access to the Pimoroni PiGlow board. |
| 4 | * |
| 5 | * Copyright (c) 2013 Gordon Henderson. |
| 6 | *********************************************************************** |
| 7 | * This file is part of wiringPi: |
| 8 | * https://projects.drogon.net/raspberry-pi/wiringpi/ |
| 9 | * |
| 10 | * wiringPi is free software: you can redistribute it and/or modify |
| 11 | * it under the terms of the GNU Lesser General Public License as published by |
| 12 | * the Free Software Foundation, either version 3 of the License, or |
| 13 | * (at your option) any later version. |
| 14 | * |
| 15 | * wiringPi is distributed in the hope that it will be useful, |
| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 18 | * GNU Lesser General Public License for more details. |
| 19 | * |
| 20 | * You should have received a copy of the GNU Lesser General Public License |
| 21 | * along with wiringPi. If not, see <http://www.gnu.org/licenses/>. |
| 22 | *********************************************************************** |
| 23 | */ |
| 24 | |
| 25 | #include <wiringPi.h> |
| 26 | #include <sn3218.h> |
| 27 | |
| 28 | #include "piGlow.h" |
| 29 | |
| 30 | #define PIGLOW_BASE 577 |
| 31 | |
| 32 | static int leg0 [6] = { 6, 7, 8, 5, 4, 9 } ; |
| 33 | static int leg1 [6] = { 17, 16, 15, 13, 11, 10 } ; |
| 34 | static int leg2 [6] = { 0, 1, 2, 3, 14, 12 } ; |
| 35 | |
| 36 | |
| 37 | /* |
| 38 | * piGlow1: |
| 39 | * Light up an individual LED |
| 40 | ********************************************************************************* |
| 41 | */ |
| 42 | |
| 43 | void piGlow1 (const int leg, const int ring, const int intensity) |
| 44 | { |
| 45 | int *legLeds ; |
| 46 | |
| 47 | if ((leg < 0) || (leg > 2)) return ; |
| 48 | if ((ring < 0) || (ring > 5)) return ; |
| 49 | |
| 50 | /**/ if (leg == 0) |
| 51 | legLeds = leg0 ; |
| 52 | else if (leg == 1) |
| 53 | legLeds = leg1 ; |
| 54 | else |
| 55 | legLeds = leg2 ; |
| 56 | |
| 57 | analogWrite (PIGLOW_BASE + legLeds [ring], intensity) ; |
| 58 | } |
| 59 | |
| 60 | /* |
| 61 | * piGlowLeg: |
| 62 | * Light up all 6 LEDs on a leg |
| 63 | ********************************************************************************* |
| 64 | */ |
| 65 | |
| 66 | void piGlowLeg (const int leg, const int intensity) |
| 67 | { |
| 68 | int i ; |
| 69 | int *legLeds ; |
| 70 | |
| 71 | if ((leg < 0) || (leg > 2)) |
| 72 | return ; |
| 73 | |
| 74 | /**/ if (leg == 0) |
| 75 | legLeds = leg0 ; |
| 76 | else if (leg == 1) |
| 77 | legLeds = leg1 ; |
| 78 | else |
| 79 | legLeds = leg2 ; |
| 80 | |
| 81 | for (i = 0 ; i < 6 ; ++i) |
| 82 | analogWrite (PIGLOW_BASE + legLeds [i], intensity) ; |
| 83 | } |
| 84 | |
| 85 | |
| 86 | /* |
| 87 | * piGlowRing: |
| 88 | * Light up 3 LEDs in a ring. Ring 0 is the outermost, 5 the innermost |
| 89 | ********************************************************************************* |
| 90 | */ |
| 91 | |
| 92 | void piGlowRing (const int ring, const int intensity) |
| 93 | { |
| 94 | if ((ring < 0) || (ring > 5)) |
| 95 | return ; |
| 96 | |
| 97 | analogWrite (PIGLOW_BASE + leg0 [ring], intensity) ; |
| 98 | analogWrite (PIGLOW_BASE + leg1 [ring], intensity) ; |
| 99 | analogWrite (PIGLOW_BASE + leg2 [ring], intensity) ; |
| 100 | } |
| 101 | |
| 102 | /* |
| 103 | * piGlowSetup: |
| 104 | * Initialise the board & remember the pins we're using |
| 105 | ********************************************************************************* |
| 106 | */ |
| 107 | |
| 108 | void piGlowSetup (int clear) |
| 109 | { |
| 110 | sn3218Setup (PIGLOW_BASE) ; |
| 111 | |
| 112 | if (clear) |
| 113 | { |
| 114 | piGlowLeg (0, 0) ; |
| 115 | piGlowLeg (1, 0) ; |
| 116 | piGlowLeg (2, 0) ; |
| 117 | } |
| 118 | } |