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/*
ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.
This file is part of ChibiOS/RT.
ChibiOS/RT 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.
ChibiOS/RT 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, see <http://www.gnu.org/licenses/>.
*/
/**
* @file templates/spi_lld.c
* @brief SPI Driver subsystem low level driver source template
* @addtogroup SPI_LLD
* @{
*/
#include <ch.h>
#include <spi.h>
/**
* @brief Low level SPI driver initialization.
*/
void spi_lld_init(void) {
}
/**
* @brief Low level SPI bus setup.
*
* @param[in] spip pointer to the @p SPIDriver object
*/
void spi_lld_setup(SPIDriver *spip) {
}
/**
* @brief Asserts the chip select signal and prepares for transfers.
*
* @param[in] spip pointer to the @p SPIDriver object
*/
void spi_lld_select(SPIDriver *spip) {
}
/**
* @brief De-asserts the chip select signal.
* @details The previously selected peripheral is unselected.
*
* @param[in] spip pointer to the @p SPIDriver object
*/
void spi_lld_unselect(SPIDriver *spip) {
}
/**
* @brief Exchanges data on the SPI bus.
* @details This function performs a simultaneous transmit/receive operation.
*
* @param[in] spip pointer to the @p SPIDriver object
* @param n number of words to be exchanged
* @param rxbuf the pointer to the receive buffer, if @p NULL is specified then
* the input data is discarded.
* Note that the buffer is organized as an uint8_t array for
* data sizes below or equal to 8 bits else it is organized as
* an uint16_t array.
* @param txbuf the pointer to the transmit buffer, if @p NULL is specified all
* ones are transmitted.
* Note that the buffer is organized as an uint8_t array for
* data sizes below or equal to 8 bits else it is organized as
* an uint16_t array.
*/
void spi_lld_exchange(SPIDriver *spip, size_t n, void *rxbuf, void *txbuf) {
}
/** @} */
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