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#ifndef SPI_ADIS16130_H_
#define SPI_ADIS16130_H_
#define ADIS16130_CON 0x0
#define ADIS16130_CON_RD (1 << 6)
#define ADIS16130_IOP 0x1
#define ADIS16130_IOP_ALL_RDY (1 << 3) /* 1 = data-ready signal low when unread data on all channels; */
#define ADIS16130_IOP_SYNC (1 << 0) /* 1 = synchronization enabled */
#define ADIS16130_RATEDATA 0x8 /* Gyroscope output, rate of rotation */
#define ADIS16130_TEMPDATA 0xA /* Temperature output */
#define ADIS16130_RATECS 0x28 /* Gyroscope channel setup */
#define ADIS16130_RATECS_EN (1 << 3) /* 1 = channel enable; */
#define ADIS16130_TEMPCS 0x2A /* Temperature channel setup */
#define ADIS16130_TEMPCS_EN (1 << 3)
#define ADIS16130_RATECONV 0x30
#define ADIS16130_TEMPCONV 0x32
#define ADIS16130_MODE 0x38
#define ADIS16130_MODE_24BIT (1 << 1) /* 1 = 24-bit resolution; */
#define ADIS16130_MAX_TX 4
#define ADIS16130_MAX_RX 4
/**
* struct adis16130_state - device instance specific data
* @us: actual spi_device to write data
* @work_trigger_to_ring: bh for triggered event handling
* @inter: used to check if new interrupt has been triggered
* @last_timestamp: passing timestamp from th to bh of interrupt handler
* @indio_dev: industrial I/O device structure
* @trig: data ready trigger registered with iio
* @tx: transmit buffer
* @rx: recieve buffer
* @buf_lock: mutex to protect tx and rx
**/
struct adis16130_state {
struct spi_device *us;
struct work_struct work_trigger_to_ring;
s64 last_timestamp;
struct iio_dev *indio_dev;
struct iio_trigger *trig;
u8 *tx;
u8 *rx;
u32 mode; /* 1: 24bits mode 0:16bits mode */
struct mutex buf_lock;
};
#if defined(CONFIG_IIO_RING_BUFFER) && defined(THIS_HAS_RING_BUFFER_SUPPORT)
/* At the moment triggers are only used for ring buffer
* filling. This may change!
*/
enum adis16130_scan {
ADIS16130_SCAN_GYRO,
ADIS16130_SCAN_TEMP,
};
void adis16130_remove_trigger(struct iio_dev *indio_dev);
int adis16130_probe_trigger(struct iio_dev *indio_dev);
ssize_t adis16130_read_data_from_ring(struct device *dev,
struct device_attribute *attr,
char *buf);
int adis16130_configure_ring(struct iio_dev *indio_dev);
void adis16130_unconfigure_ring(struct iio_dev *indio_dev);
int adis16130_initialize_ring(struct iio_ring_buffer *ring);
void adis16130_uninitialize_ring(struct iio_ring_buffer *ring);
#else /* CONFIG_IIO_RING_BUFFER */
static inline void adis16130_remove_trigger(struct iio_dev *indio_dev)
{
}
static inline int adis16130_probe_trigger(struct iio_dev *indio_dev)
{
return 0;
}
static inline ssize_t
adis16130_read_data_from_ring(struct device *dev,
struct device_attribute *attr,
char *buf)
{
return 0;
}
static int adis16130_configure_ring(struct iio_dev *indio_dev)
{
return 0;
}
static inline void adis16130_unconfigure_ring(struct iio_dev *indio_dev)
{
}
static inline int adis16130_initialize_ring(struct iio_ring_buffer *ring)
{
return 0;
}
static inline void adis16130_uninitialize_ring(struct iio_ring_buffer *ring)
{
}
#endif /* CONFIG_IIO_RING_BUFFER */
#endif /* SPI_ADIS16130_H_ */
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