| #ifndef SPI_ADIS16080_H_ |
| #define SPI_ADIS16080_H_ |
| |
| #define ADIS16080_DIN_CODE 4 /* Output data format setting. 0: Twos complement. 1: Offset binary. */ |
| #define ADIS16080_DIN_GYRO (0 << 10) /* Gyroscope output */ |
| #define ADIS16080_DIN_TEMP (1 << 10) /* Temperature output */ |
| #define ADIS16080_DIN_AIN1 (2 << 10) |
| #define ADIS16080_DIN_AIN2 (3 << 10) |
| #define ADIS16080_DIN_WRITE (1 << 15) /* 1: Write contents on DIN to control register. |
| * 0: No changes to control register. |
| */ |
| |
| #define ADIS16080_MAX_TX 2 |
| #define ADIS16080_MAX_RX 2 |
| |
| /** |
| * struct adis16080_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 adis16080_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; |
| 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 adis16080_scan { |
| ADIS16080_SCAN_GYRO, |
| ADIS16080_SCAN_TEMP, |
| ADIS16080_SCAN_ADC_1, |
| ADIS16080_SCAN_ADC_2, |
| }; |
| |
| void adis16080_remove_trigger(struct iio_dev *indio_dev); |
| int adis16080_probe_trigger(struct iio_dev *indio_dev); |
| |
| ssize_t adis16080_read_data_from_ring(struct device *dev, |
| struct device_attribute *attr, |
| char *buf); |
| |
| |
| int adis16080_configure_ring(struct iio_dev *indio_dev); |
| void adis16080_unconfigure_ring(struct iio_dev *indio_dev); |
| |
| int adis16080_initialize_ring(struct iio_ring_buffer *ring); |
| void adis16080_uninitialize_ring(struct iio_ring_buffer *ring); |
| #else /* CONFIG_IIO_RING_BUFFER */ |
| |
| static inline void adis16080_remove_trigger(struct iio_dev *indio_dev) |
| { |
| } |
| |
| static inline int adis16080_probe_trigger(struct iio_dev *indio_dev) |
| { |
| return 0; |
| } |
| |
| static inline ssize_t |
| adis16080_read_data_from_ring(struct device *dev, |
| struct device_attribute *attr, |
| char *buf) |
| { |
| return 0; |
| } |
| |
| static int adis16080_configure_ring(struct iio_dev *indio_dev) |
| { |
| return 0; |
| } |
| |
| static inline void adis16080_unconfigure_ring(struct iio_dev *indio_dev) |
| { |
| } |
| |
| static inline int adis16080_initialize_ring(struct iio_ring_buffer *ring) |
| { |
| return 0; |
| } |
| |
| static inline void adis16080_uninitialize_ring(struct iio_ring_buffer *ring) |
| { |
| } |
| |
| #endif /* CONFIG_IIO_RING_BUFFER */ |
| #endif /* SPI_ADIS16080_H_ */ |