Paparazzi UAS  v5.15_devel-112-g521f3cf
Paparazzi is a free software Unmanned Aircraft System.
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lps25h_i2c.h
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1 /*
2  * Copyright (C) 2019 Alexis Cornard <alexiscornard@gmail.com>
3  *
4  * This file is part of paparazzi.
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21 
28 #ifndef LPS25H_I2C_H
29 #define LPS25H_I2C_H
30 
31 #include "std.h"
32 #include "math/pprz_algebra_int.h"
33 #include "mcu_periph/i2c.h"
34 
35 /* Include common LPS25H options and definitions */
36 #include "peripherals/lps25h.h"
37 
38 struct Lps25h_I2c {
39  struct i2c_periph *i2c_p;
42  bool initialized;
43  volatile bool data_available;
46 };
47 
48 // Functions
49 extern void lps25h_i2c_init(struct Lps25h_I2c *lps, struct i2c_periph *i2c_p, uint8_t addr);
50 extern void lps25h_i2c_start_configure(struct Lps25h_I2c *lps);
51 extern void lps25h_i2c_read(struct Lps25h_I2c *lps);
52 extern void lps25h_i2c_event(struct Lps25h_I2c *lps);
53 extern float lps25h_readPressureMillibars(int32_t press);
54 extern float pressureToAltMeters(float pressure_mbar, float altimeter_setting_mbar);
55 
56 // convenience function: read or start configuration if not already initialized
57 static inline void lps25h_i2c_periodic(struct Lps25h_I2c *lps)
58 {
59  if (lps->initialized) {
60  lps25h_i2c_read(lps);
61  } else {
63  }
64 }
65 
66 #endif // LPS25H_I2C_H
LPS25H barometer driver interface.
Lps25hConfStatus
Definition: lps25h.h:36
void lps25h_i2c_start_configure(struct Lps25h_I2c *lps)
Definition: lps25h_i2c.c:76
float pressureToAltMeters(float pressure_mbar, float altimeter_setting_mbar)
Definition: lps25h_i2c.c:106
struct Lps25hConfig config
Definition: lps25h_i2c.h:45
enum Lps25hConfStatus init_status
init status
Definition: lps25h_i2c.h:41
void lps25h_i2c_event(struct Lps25h_I2c *lps)
Definition: lps25h_i2c.c:110
float lps25h_readPressureMillibars(int32_t press)
Definition: lps25h_i2c.c:101
I2C transaction structure.
Definition: i2c.h:93
signed long int32_t
Definition: types.h:19
bool initialized
config done flag
Definition: lps25h_i2c.h:42
I2C peripheral structure.
Definition: i2c.h:138
void lps25h_i2c_read(struct Lps25h_I2c *lps)
Definition: lps25h_i2c.c:87
unsigned char uint8_t
Definition: types.h:14
struct i2c_periph * i2c_p
Definition: lps25h_i2c.h:39
int32_t data
Definition: lps25h_i2c.h:44
static void lps25h_i2c_periodic(struct Lps25h_I2c *lps)
Definition: lps25h_i2c.h:57
volatile bool data_available
data ready flag
Definition: lps25h_i2c.h:43
void lps25h_i2c_init(struct Lps25h_I2c *lps, struct i2c_periph *i2c_p, uint8_t addr)
Definition: lps25h_i2c.c:33
struct i2c_transaction i2c_trans
Definition: lps25h_i2c.h:40
Paparazzi fixed point algebra.
Architecture independent I2C (Inter-Integrated Circuit Bus) API.