ms5611_spi.h

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/*
 * Copyright (C) 2013 Felix Ruess <felix.ruess@gmail.com>
 *
 * This file is part of paparazzi.
 *
 * paparazzi 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, or (at your option)
 * any later version.
 *
 * paparazzi 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 paparazzi; see the file COPYING.  If not, write to
 * the Free Software Foundation, 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */
 
#ifndef MS5611_SPI_H
#define MS5611_SPI_H
 
#include "mcu_periph/spi.h"
 
/* Include common MS5611 definitions */
#include "peripherals/ms5611.h"
 
struct Ms5611_Spi {
  struct spi_periph *spi_p;
  struct spi_transaction spi_trans;
  volatile uint8_t tx_buf[1];
  volatile uint8_t rx_buf[4];
  enum Ms5611Status status;
  bool is_ms5607;                   
  bool initialized;                 
  volatile bool data_available;     
  struct Ms5611Data data;
  int32_t prom_cnt;                   
};
 
// Functions
extern void ms5611_spi_init(struct Ms5611_Spi *ms, struct spi_periph *spi_p, uint8_t addr,
                            bool is_ms5607);
extern void ms5611_spi_start_configure(struct Ms5611_Spi *ms);
extern void ms5611_spi_start_conversion(struct Ms5611_Spi *ms);
extern void ms5611_spi_periodic_check(struct Ms5611_Spi *ms);
extern void ms5611_spi_event(struct Ms5611_Spi *ms);
 
static inline void ms5611_spi_read(struct Ms5611_Spi *ms)
{
  if (ms->initialized) {
    ms5611_spi_start_conversion(ms);
  } else {
    ms5611_spi_start_configure(ms);
  }
}
 
static inline void ms5611_spi_periodic(struct Ms5611_Spi *ms)
{
  ms5611_spi_read(ms);
  ms5611_spi_periodic_check(ms);
}
 
 
#endif /* MS5611_SPI_H */