/* * audio.c * * Copyright 2011 Thomas Buck * Copyright 2011 Max Nuding * Copyright 2011 Felix Bäder * * This file is part of LED-Cube. * * LED-Cube is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * LED-Cube 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with LED-Cube. If not, see . */ #include #include #include #include "twi.h" #include "audio.h" uint8_t ret[7]; // Buffer for data // don't free returned memory! It's static mem uint8_t *getAudioData(void) { // We read 7 bytes from our Audio µC uint8_t i; if (i2c_start(TWIADDRESSAUDIO | I2C_READ) == 0) { for (i = 0; i < 6; i++) { ret[i] = i2c_readAck(); } ret[6] = i2c_readNak(); i2c_stop(); return ret; } else { return NULL; } }