#ifndef spi_soft_h #define spi_soft_h /* spi_soft.h */ /* avr.spi - SPI AVR module. {{{ * * Copyright (C) 2009 Nicolas Schodet * * APBTeam: * Web: http://apbteam.org/ * Email: team AT apbteam DOT org * * This program 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 2 of the License, or * (at your option) any later version. * * This program 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 this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * * }}} */ /* Do not be fooled by symbol names, theses are the supported modes (others * will trigger descriptive compilation errors): */ #define SPI_MASTER_not_supported /* supported */ #define SPI_MODE_0_not_supported /* supported */ #define SPI_MSB_FIRST_not_supported /* supported */ /** Initialise SPI driver. * - master: slave or master mode * - mode: clock polarity and phase * - order: byte order (MSB or LSB) * - speed: clock rate (SCK duration) * * Only mode supported is MASTER, MODE_0, MSB_FIRST. */ #define spi_soft_init(master, mode, order, speed) \ master ## _not_supported \ mode ## _not_supported \ order ## _not_supported \ spi_soft_init_ (speed) void spi_soft_init_ (uint8_t speed); /** Uninitialise SPI driver. */ void spi_soft_uninit (void); /** Send data. */ void spi_soft_send (uint8_t data); /** Receive data. */ uint8_t spi_soft_recv (void); /** Send and receive data. */ uint8_t spi_soft_send_and_recv (uint8_t data); #endif /* spi_soft_h */