spa06.h

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/*
 * Copyright (C) 2026 OpenUAS
 * Thanks to Florian Sansou florian.sansou@enac.fr for initial implementation
 *
 * 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, see
 * <http://www.gnu.org/licenses/>.
 *
 */
 
#ifndef SPA06_H
#define SPA06_H
 
/* Header includes */
#include "peripherals/spa06_regs.h"
#include "mcu_periph/i2c.h"
#include "mcu_periph/spi.h"
 
struct spa06_i2c_t {
  struct i2c_periph *p;         
  struct i2c_transaction trans; 
  uint8_t slave_addr;           
};
 
struct spa06_spi_t {
  struct spi_periph *p;         
  uint8_t slave_idx;            
  struct spi_transaction trans; 
 
  uint8_t tx_buf[50];           
  uint8_t rx_buf[50];           
};
 
enum spa06_bus_t {
  SPA06_SPI,
  SPA06_I2C
};
 
enum spa06_device_t {
  SPA06_UNKNOWN, 
  SPA06,         
  SPL06          
};
 
enum spa06_status_t {
  SPA06_STATUS_UNINIT,          
  SPA06_STATUS_IDLE,            
  SPA06_STATUS_INIT_OK,         
  SPA06_STATUS_GET_COEF_SRCE,   
  SPA06_STATUS_GET_CALIB,       
  SPA06_STATUS_CONFIGURE,       
  SPA06_STATUS_READ_STATUS_REG, 
  SPA06_STATUS_READ_DATA_REGS   
};
 
struct spa06_reg_calib_data {
  int16_t c0;     
  int16_t c1;     
  int16_t c01;    
  int16_t c11;    
  int16_t c20;    
  int16_t c21;    
  int16_t c30;    
  int16_t c31;    
  int16_t c40;    
  int32_t c00;    
  int32_t c10;    
};
struct spa06_t {
  enum spa06_status_t status;        
  enum spa06_device_t device;        
  bool initialized;                  
  bool is_broken;                    
  bool reset;                        
  uint32_t timer;                    
  uint8_t init_error_cnt;            
  volatile bool data_available;      
  struct spa06_reg_calib_data calib; 
  uint8_t tmp_coef_srce;             
  int32_t raw_pressure;              
  int32_t raw_temperature;           
  float pressure;                    
  float temperature;                 
  enum spa06_bus_t bus;              
  union {
    struct spa06_spi_t spi;          
    struct spa06_i2c_t i2c;          
  };
  volatile uint8_t *rx_buffer;       
  volatile uint8_t *tx_buffer;       
 
  uint8_t config_idx;                
  uint8_t calib_idx;                 
};
 
extern void spa06_init(struct spa06_t *spa);
extern void spa06_periodic(struct spa06_t *spa);
extern void spa06_event(struct spa06_t *spa);
 
#endif /* SPA06_H */