2919fa54ef
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>
123 lines
3.1 KiB
C
123 lines
3.1 KiB
C
#ifndef _ADE7759_H
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#define _ADE7759_H
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#define ADE7759_WAVEFORM 0x01
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#define ADE7759_AENERGY 0x02
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#define ADE7759_RSTENERGY 0x03
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#define ADE7759_STATUS 0x04
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#define ADE7759_RSTSTATUS 0x05
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#define ADE7759_MODE 0x06
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#define ADE7759_CFDEN 0x07
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#define ADE7759_CH1OS 0x08
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#define ADE7759_CH2OS 0x09
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#define ADE7759_GAIN 0x0A
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#define ADE7759_APGAIN 0x0B
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#define ADE7759_PHCAL 0x0C
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#define ADE7759_APOS 0x0D
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#define ADE7759_ZXTOUT 0x0E
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#define ADE7759_SAGCYC 0x0F
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#define ADE7759_IRQEN 0x10
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#define ADE7759_SAGLVL 0x11
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#define ADE7759_TEMP 0x12
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#define ADE7759_LINECYC 0x13
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#define ADE7759_LENERGY 0x14
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#define ADE7759_CFNUM 0x15
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#define ADE7759_CHKSUM 0x1E
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#define ADE7759_DIEREV 0x1F
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#define ADE7759_READ_REG(a) a
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#define ADE7759_WRITE_REG(a) ((a) | 0x80)
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#define ADE7759_MAX_TX 6
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#define ADE7759_MAX_RX 6
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#define ADE7759_STARTUP_DELAY 1
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#define ADE7759_SPI_SLOW (u32)(300 * 1000)
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#define ADE7759_SPI_BURST (u32)(1000 * 1000)
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#define ADE7759_SPI_FAST (u32)(2000 * 1000)
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#define DRIVER_NAME "ade7759"
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/**
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* struct ade7759_state - device instance specific data
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* @us: actual spi_device
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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 ade7759_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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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 ade7759_scan {
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ADE7759_SCAN_ACTIVE_POWER,
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ADE7759_SCAN_CH1_CH2,
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ADE7759_SCAN_CH1,
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ADE7759_SCAN_CH2,
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};
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void ade7759_remove_trigger(struct iio_dev *indio_dev);
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int ade7759_probe_trigger(struct iio_dev *indio_dev);
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ssize_t ade7759_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 ade7759_configure_ring(struct iio_dev *indio_dev);
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void ade7759_unconfigure_ring(struct iio_dev *indio_dev);
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int ade7759_initialize_ring(struct iio_ring_buffer *ring);
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void ade7759_uninitialize_ring(struct iio_ring_buffer *ring);
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#else /* CONFIG_IIO_RING_BUFFER */
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static inline void ade7759_remove_trigger(struct iio_dev *indio_dev)
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{
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}
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static inline int ade7759_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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ade7759_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 ade7759_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 ade7759_unconfigure_ring(struct iio_dev *indio_dev)
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{
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}
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static inline int ade7759_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 ade7759_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
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