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lis2dw: add FIFO support

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This commit is contained in:
Joey Castillo
2022-02-17 16:36:21 -05:00
parent deda65b313
commit 0c59c972e7
3 changed files with 78 additions and 22 deletions
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41
watch-library/shared/driver/lis2dw.h
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@@ -32,13 +32,18 @@ typedef struct {
int16_t x;
int16_t y;
int16_t z;
} lis2dw_reading;
} lis2dw_reading_t;
typedef struct {
float x;
float y;
float z;
} lis2dw_acceleration_measurement;
} lis2dw_acceleration_measurement_t;
typedef struct {
int8_t count;
lis2dw_reading_t readings[32];
} lis2dw_fifo_t;
typedef enum {
LIS2DW_DATA_RATE_POWERDOWN = 0,
@@ -60,6 +65,14 @@ typedef enum {
LIS2DW_MODE_ON_DEMAND = 0b10,
} lis2dw_mode_t;
typedef enum {
LIS2DW_FIFO_MODE_OFF = 0b000,
LIS2DW_FIFO_MODE_COLLECT_AND_STOP = 0b001,
LIS2DW_FIFO_MODE_CONTINUOUS_TO_FIFO = 0b011,
LIS2DW_FIFO_MODE_BYPASS_TO_CONTINUOUS = 0b100,
LIS2DW_FIFO_MODE_COLLECT_CONTINUOUS = 0b110,
} lis2dw_fifo_mode_t;
typedef enum {
LIS2DW_LP_MODE_1 = 0b00, // 12-bit
LIS2DW_LP_MODE_2 = 0b01, // 14-bit
@@ -177,7 +190,17 @@ typedef enum {
#define LIS2DW_REG_OUT_Z_H 0x2D
#define LIS2DW_REG_FIFO_CTRL 0x2E
#define LIS2DW_REG_FIFO_SRC 0x2F
#define LIS2DW_FIFO_CTRL_MODE_OFF (LIS2DW_FIFO_MODE_OFF << 5)
#define LIS2DW_FIFO_CTRL_MODE_COLLECT_AND_STOP (LIS2DW_FIFO_MODE_COLLECT_AND_STOP << 5)
#define LIS2DW_FIFO_CTRL_MODE_CONTINUOUS_TO_FIFO (LIS2DW_FIFO_MODE_CONTINUOUS_TO_FIFO << 5)
#define LIS2DW_FIFO_CTRL_MODE_BYPASS_TO_CONTINUOUS (LIS2DW_FIFO_MODE_BYPASS_TO_CONTINUOUS << 5)
#define LIS2DW_FIFO_CTRL_MODE_COLLECT_CONTINUOUS (LIS2DW_FIFO_MODE_COLLECT_CONTINUOUS << 5)
#define LIS2DW_FIFO_CTRL_FTH (0b00011111)
#define LIS2DW_REG_FIFO_SAMPLE 0x2F
#define LIS2DW_FIFO_SAMPLE_THRESHOLD (1 << 7)
#define LIS2DW_FIFO_SAMPLE_OVERRUN (1 << 6)
#define LIS2DW_FIFO_SAMPLE_COUNT (0b00111111)
#define LIS2DW_REG_TAP_THS_X 0x30
#define LIS2DW_REG_TAP_THS_Y 0x31
@@ -242,9 +265,9 @@ uint8_t lis2dw_get_device_id(void);
bool lis2dw_have_new_data(void);
lis2dw_reading lis2dw_get_raw_reading(void);
lis2dw_reading_t lis2dw_get_raw_reading(void);
lis2dw_acceleration_measurement lis2dw_get_acceleration_measurement(lis2dw_reading *out_reading);
lis2dw_acceleration_measurement_t lis2dw_get_acceleration_measurement(lis2dw_reading_t *out_reading);
void lis2dw_set_range(lis2dw_range_t range);
@@ -262,4 +285,12 @@ void lis2dw_set_low_noise_mode(bool on);
bool lis2dw_get_low_noise_mode(void);
void lis2dw_disable_fifo(void);
void lis2dw_enable_fifo(void);
bool lis2dw_read_fifo(lis2dw_fifo_t *fifo_data);
void lis2dw_clear_fifo(void);
#endif // LIS2DW_H