7a83f60d7b
Signed-off-by: Barry Song <barry.song@analog.com> Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Acked-by: Jonathan Cameron <jic23@cam.ac.uk> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
109 lines
3.1 KiB
C
109 lines
3.1 KiB
C
#ifndef SPI_ADIS16130_H_
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#define SPI_ADIS16130_H_
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#define ADIS16130_CON 0x0
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#define ADIS16130_CON_RD (1 << 6)
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#define ADIS16130_IOP 0x1
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#define ADIS16130_IOP_ALL_RDY (1 << 3) /* 1 = data-ready signal low when unread data on all channels; */
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#define ADIS16130_IOP_SYNC (1 << 0) /* 1 = synchronization enabled */
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#define ADIS16130_RATEDATA 0x8 /* Gyroscope output, rate of rotation */
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#define ADIS16130_TEMPDATA 0xA /* Temperature output */
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#define ADIS16130_RATECS 0x28 /* Gyroscope channel setup */
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#define ADIS16130_RATECS_EN (1 << 3) /* 1 = channel enable; */
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#define ADIS16130_TEMPCS 0x2A /* Temperature channel setup */
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#define ADIS16130_TEMPCS_EN (1 << 3)
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#define ADIS16130_RATECONV 0x30
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#define ADIS16130_TEMPCONV 0x32
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#define ADIS16130_MODE 0x38
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#define ADIS16130_MODE_24BIT (1 << 1) /* 1 = 24-bit resolution; */
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#define ADIS16130_MAX_TX 4
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#define ADIS16130_MAX_RX 4
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/**
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* struct adis16130_state - device instance specific data
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* @us: actual spi_device to write data
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* @work_trigger_to_ring: bh for triggered event handling
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* @inter: used to check if new interrupt has been triggered
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* @last_timestamp: passing timestamp from th to bh of interrupt handler
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* @indio_dev: industrial I/O device structure
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* @trig: data ready trigger registered with iio
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* @tx: transmit buffer
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* @rx: recieve buffer
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* @buf_lock: mutex to protect tx and rx
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**/
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struct adis16130_state {
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struct spi_device *us;
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struct work_struct work_trigger_to_ring;
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s64 last_timestamp;
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struct iio_dev *indio_dev;
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struct iio_trigger *trig;
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u8 *tx;
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u8 *rx;
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u32 mode; /* 1: 24bits mode 0:16bits mode */
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struct mutex buf_lock;
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};
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#if defined(CONFIG_IIO_RING_BUFFER) && defined(THIS_HAS_RING_BUFFER_SUPPORT)
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/* At the moment triggers are only used for ring buffer
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* filling. This may change!
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*/
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enum adis16130_scan {
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ADIS16130_SCAN_GYRO,
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ADIS16130_SCAN_TEMP,
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};
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void adis16130_remove_trigger(struct iio_dev *indio_dev);
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int adis16130_probe_trigger(struct iio_dev *indio_dev);
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ssize_t adis16130_read_data_from_ring(struct device *dev,
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struct device_attribute *attr,
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char *buf);
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int adis16130_configure_ring(struct iio_dev *indio_dev);
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void adis16130_unconfigure_ring(struct iio_dev *indio_dev);
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int adis16130_initialize_ring(struct iio_ring_buffer *ring);
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void adis16130_uninitialize_ring(struct iio_ring_buffer *ring);
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#else /* CONFIG_IIO_RING_BUFFER */
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static inline void adis16130_remove_trigger(struct iio_dev *indio_dev)
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{
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}
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static inline int adis16130_probe_trigger(struct iio_dev *indio_dev)
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{
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return 0;
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}
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static inline ssize_t
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adis16130_read_data_from_ring(struct device *dev,
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struct device_attribute *attr,
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char *buf)
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{
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return 0;
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}
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static int adis16130_configure_ring(struct iio_dev *indio_dev)
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{
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return 0;
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}
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static inline void adis16130_unconfigure_ring(struct iio_dev *indio_dev)
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{
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}
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static inline int adis16130_initialize_ring(struct iio_ring_buffer *ring)
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{
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return 0;
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}
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static inline void adis16130_uninitialize_ring(struct iio_ring_buffer *ring)
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{
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}
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#endif /* CONFIG_IIO_RING_BUFFER */
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#endif /* SPI_ADIS16130_H_ */
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