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LibrePilot/flight/PiOS/inc/pios_spi_priv.h
2013-03-24 13:03:53 +02:00

70 lines
2.0 KiB
C

/**
******************************************************************************
* @addtogroup PIOS PIOS Core hardware abstraction layer
* @{
* @addtogroup PIOS_SPI SPI Functions
* @brief PIOS interface to read and write from SPI ports
* @{
*
* @file pios_spi_priv.h
* @author The OpenPilot Team, http://www.openpilot.org Copyright (C) 2010.
* @brief SPI private definitions.
* @see The GNU Public License (GPL) Version 3
*
*****************************************************************************/
/*
* 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 3 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
*/
#ifndef PIOS_SPI_PRIV_H
#define PIOS_SPI_PRIV_H
#include <pios.h>
#include <pios_stm32.h>
struct pios_spi_cfg {
SPI_TypeDef *regs;
uint32_t remap; /* GPIO_Remap_* or GPIO_AF_* */
SPI_InitTypeDef init;
bool use_crc;
struct stm32_dma dma;
struct stm32_gpio sclk;
struct stm32_gpio miso;
struct stm32_gpio mosi;
uint32_t slave_count;
struct stm32_gpio ssel[];
};
struct pios_spi_dev {
const struct pios_spi_cfg * cfg;
void (*callback) (uint8_t, uint8_t);
uint8_t tx_dummy_byte;
uint8_t rx_dummy_byte;
#if defined(PIOS_INCLUDE_FREERTOS)
xSemaphoreHandle busy;
#else
uint8_t busy;
#endif
};
extern int32_t PIOS_SPI_Init(uint32_t * spi_id, const struct pios_spi_cfg * cfg);
#endif /* PIOS_SPI_PRIV_H */
/**
* @}
* @}
*/