diff options
| author | Keith Packard <keithp@keithp.com> | 2012-08-26 09:53:16 -0700 |
|---|---|---|
| committer | Keith Packard <keithp@keithp.com> | 2012-08-26 09:53:16 -0700 |
| commit | f89e7de20374141b367205aa517a08ee203bfaf3 (patch) | |
| tree | ccda232f72dd067d88fd1b7e03196c24f943b494 /src/core/ao_data.h | |
| parent | dec1481786ad54e22634e32109b5ed6e5483938e (diff) | |
altos: Trigger sample complete when all data are ready
This has each sensor mark a bit in the current data record which is
then sent for processing when all of the data are present.
Signed-off-by: Keith Packard <keithp@keithp.com>
Diffstat (limited to 'src/core/ao_data.h')
| -rw-r--r-- | src/core/ao_data.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/src/core/ao_data.h b/src/core/ao_data.h index fdc49ca2..3b66ef5d 100644 --- a/src/core/ao_data.h +++ b/src/core/ao_data.h @@ -18,18 +18,42 @@ #ifndef _AO_DATA_H_ #define _AO_DATA_H_ +#if HAS_ADC +#define AO_DATA_ADC (1 << 0) +#else +#define AO_DATA_ADC 0 +#endif + #if HAS_MS5607 #include <ao_ms5607.h> +#define AO_DATA_MS5607 (1 << 1) +#else +#define AO_DATA_MS5607 (1 << 1) #endif #if HAS_MPU6000 #include <ao_mpu6000.h> +#define AO_DATA_MPU6000 (1 << 2) +#else +#define AO_DATA_MPU6000 0 #endif #if HAS_HMC5883 #include <ao_hmc5883.h> +#define AO_DATA_HMC5883 (1 << 3) +#else +#define AO_DATA_HMC5883 0 +#endif + +#if HAS_MMA655X +#include <ao_mma655x.h> +#define AO_DATA_MMA655X (1 << 4) +#else +#define AO_DATA_MMA655X 0 #endif +#define AO_DATA_ALL (AO_DATA_ADC|AO_DATA_MS5607|AO_DATA_MPU6000|AO_DATA_HMC5883|AO_DATA_MMA655X) + struct ao_data { uint16_t tick; #if HAS_ADC @@ -45,6 +69,9 @@ struct ao_data { #if HAS_HMC5883 struct ao_hmc5883_sample hmc5883; #endif +#if HAS_MMA655X + uint16_t mma655x; +#endif }; #define ao_data_ring_next(n) (((n) + 1) & (AO_DATA_RING - 1)) @@ -52,6 +79,29 @@ struct ao_data { extern volatile __xdata struct ao_data ao_data_ring[AO_DATA_RING]; extern volatile __data uint8_t ao_data_head; +extern volatile __data uint8_t ao_data_present; +extern volatile __data uint8_t ao_data_count; + +/* + * Mark a section of data as ready, check for data complete + */ +#define AO_DATA_PRESENT(bit) do { \ + if ((ao_data_present |= (bit)) == AO_DATA_ALL) { \ + ao_data_ring[ao_data_head].tick = ao_tick_count; \ + ao_data_head = ao_data_ring_next(ao_data_head); \ + ao_data_present = 0; \ + ao_wakeup((void *) &ao_data_head); \ + } \ + } while (0); + +/* + * Wait for data to be completed by looking at the + * indicated bit + */ +#define AO_DATA_WAIT() do { \ + ao_sleep((void *) &ao_data_count); \ + } while (0) + #if HAS_MS5607 |