160 lines
4.5 KiB
C
160 lines
4.5 KiB
C
/*
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ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
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2011,2012 Giovanni Di Sirio.
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This file is part of ChibiOS/RT.
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ChibiOS/RT is free software; you can redistribute it and/or modify
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it under the terms of the GNU 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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ChibiOS/RT 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 General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @file templates/i2c_lld.c
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* @brief I2C Driver subsystem low level driver source template.
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*
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* @addtogroup I2C
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* @{
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*/
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#include "ch.h"
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#include "hal.h"
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#if HAL_USE_I2C || defined(__DOXYGEN__)
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/*===========================================================================*/
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/* Driver local definitions. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver exported variables. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver local variables. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver local functions. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver interrupt handlers. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver exported functions. */
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/*===========================================================================*/
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/**
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* @brief Low level I2C driver initialization.
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*
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* @notapi
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*/
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void i2c_lld_init(void) {
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}
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/**
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* @brief Configures and activates the I2C peripheral.
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*
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* @param[in] i2cp pointer to the @p I2CDriver object
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*
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* @notapi
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*/
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void i2c_lld_start(I2CDriver *i2cp) {
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if (i2cp->i2c_state == I2C_STOP) {
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/* Clock activation.*/
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}
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/* Configuration.*/
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}
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/**
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* @brief Deactivates the I2C peripheral.
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*
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* @param[in] i2cp pointer to the @p I2CDriver object
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*
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* @notapi
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*/
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void i2c_lld_stop(I2CDriver *i2cp) {
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}
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/**
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* @brief Initiates a master bus transaction.
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* @details This function sends a start bit followed by an one or two bytes
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* header.
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*
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* @param[in] i2cp pointer to the @p I2CDriver object
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* @param[in] header transaction header
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*
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* @notapi
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*/
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void i2c_lld_master_start(I2CDriver *i2cp, uint16_t header) {
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}
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/**
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* @brief Terminates a master bus transaction.
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*
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* @param[in] i2cp pointer to the @p I2CDriver object
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*
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* @notapi
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*/
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void i2c_lld_master_stop(I2CDriver *i2cp) {
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}
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/**
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* @brief Sends a restart bit.
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* @details Restart bits are required by some types of I2C transactions.
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*
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* @param[in] i2cp pointer to the @p I2CDriver object
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*
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* @notapi
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*/
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void i2c_lld_master_restart(I2CDriver *i2cp) {
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}
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/**
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* @brief Master transmission.
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*
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* @param[in] i2cp pointer to the @p I2CDriver object
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* @param[in] n number of bytes to be transmitted
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* @param[in] txbuf transmit data buffer pointer
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*
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* @notapi
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*/
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void i2c_lld_master_transmit(I2CDriver *i2cp, size_t n,
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const uint8_t *txbuf) {
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}
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/**
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* @brief Master receive.
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*
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* @param[in] i2cp pointer to the @p I2CDriver object
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* @param[in] n number of bytes to be transmitted
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* @param[in] rxbuf receive data buffer pointer
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*
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* @notapi
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*/
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void i2c_lld_master_receive(I2CDriver *i2cp, size_t n, uint8_t *rxbuf) {
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}
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#endif /* HAL_USE_I2C */
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/** @} */
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