Release 4.7 drivers/staging/iio/meter/ade7758.h

/*
 * ADE7758 Poly Phase Multifunction Energy Metering IC driver
 *
 * Copyright 2010-2011 Analog Devices Inc.
 *
 * Licensed under the GPL-2.
 */

#ifndef _ADE7758_H

#define _ADE7758_H


#define ADE7758_AWATTHR   0x01

#define ADE7758_BWATTHR   0x02

#define ADE7758_CWATTHR   0x03

#define ADE7758_AVARHR    0x04

#define ADE7758_BVARHR    0x05

#define ADE7758_CVARHR    0x06

#define ADE7758_AVAHR     0x07

#define ADE7758_BVAHR     0x08

#define ADE7758_CVAHR     0x09

#define ADE7758_AIRMS     0x0A

#define ADE7758_BIRMS     0x0B

#define ADE7758_CIRMS     0x0C

#define ADE7758_AVRMS     0x0D

#define ADE7758_BVRMS     0x0E

#define ADE7758_CVRMS     0x0F

#define ADE7758_FREQ      0x10

#define ADE7758_TEMP      0x11

#define ADE7758_WFORM     0x12

#define ADE7758_OPMODE    0x13

#define ADE7758_MMODE     0x14

#define ADE7758_WAVMODE   0x15

#define ADE7758_COMPMODE  0x16

#define ADE7758_LCYCMODE  0x17

#define ADE7758_MASK      0x18

#define ADE7758_STATUS    0x19

#define ADE7758_RSTATUS   0x1A

#define ADE7758_ZXTOUT    0x1B

#define ADE7758_LINECYC   0x1C

#define ADE7758_SAGCYC    0x1D

#define ADE7758_SAGLVL    0x1E

#define ADE7758_VPINTLVL  0x1F

#define ADE7758_IPINTLVL  0x20

#define ADE7758_VPEAK     0x21

#define ADE7758_IPEAK     0x22

#define ADE7758_GAIN      0x23

#define ADE7758_AVRMSGAIN 0x24

#define ADE7758_BVRMSGAIN 0x25

#define ADE7758_CVRMSGAIN 0x26

#define ADE7758_AIGAIN    0x27

#define ADE7758_BIGAIN    0x28

#define ADE7758_CIGAIN    0x29

#define ADE7758_AWG       0x2A

#define ADE7758_BWG       0x2B

#define ADE7758_CWG       0x2C

#define ADE7758_AVARG     0x2D

#define ADE7758_BVARG     0x2E

#define ADE7758_CVARG     0x2F

#define ADE7758_AVAG      0x30

#define ADE7758_BVAG      0x31

#define ADE7758_CVAG      0x32

#define ADE7758_AVRMSOS   0x33

#define ADE7758_BVRMSOS   0x34

#define ADE7758_CVRMSOS   0x35

#define ADE7758_AIRMSOS   0x36

#define ADE7758_BIRMSOS   0x37

#define ADE7758_CIRMSOS   0x38

#define ADE7758_AWAITOS   0x39

#define ADE7758_BWAITOS   0x3A

#define ADE7758_CWAITOS   0x3B

#define ADE7758_AVAROS    0x3C

#define ADE7758_BVAROS    0x3D

#define ADE7758_CVAROS    0x3E

#define ADE7758_APHCAL    0x3F

#define ADE7758_BPHCAL    0x40

#define ADE7758_CPHCAL    0x41

#define ADE7758_WDIV      0x42

#define ADE7758_VADIV     0x44

#define ADE7758_VARDIV    0x43

#define ADE7758_APCFNUM   0x45

#define ADE7758_APCFDEN   0x46

#define ADE7758_VARCFNUM  0x47

#define ADE7758_VARCFDEN  0x48

#define ADE7758_CHKSUM    0x7E

#define ADE7758_VERSION   0x7F


#define ADE7758_READ_REG(a)    a

#define ADE7758_WRITE_REG(a) ((a) | 0x80)


#define ADE7758_MAX_TX    8

#define ADE7758_MAX_RX    4

#define ADE7758_STARTUP_DELAY 1


#define AD7758_NUM_WAVSEL	5

#define AD7758_NUM_PHSEL	3

#define AD7758_NUM_WAVESRC	(AD7758_NUM_WAVSEL * AD7758_NUM_PHSEL)


#define AD7758_PHASE_A		0

#define AD7758_PHASE_B		1

#define AD7758_PHASE_C		2

#define AD7758_CURRENT		0

#define AD7758_VOLTAGE		1

#define AD7758_ACT_PWR		2

#define AD7758_REACT_PWR	3

#define AD7758_APP_PWR		4

#define AD7758_WT(p, w)		(((w) << 2) | (p))

/**
 * struct ade7758_state - device instance specific data
 * @us:                 actual spi_device
 * @trig:               data ready trigger registered with iio
 * @tx:                 transmit buffer
 * @rx:                 receive buffer
 * @buf_lock:           mutex to protect tx and rx
 **/

struct ade7758_state {
	
struct spi_device	*us;
	
struct iio_trigger	*trig;
	
u8			*tx;
	
u8			*rx;
	
struct mutex		buf_lock;
	
struct spi_transfer	ring_xfer[4];
	
struct spi_message	ring_msg;
	/*
         * DMA (thus cache coherency maintenance) requires the
         * transfer buffers to live in their own cache lines.
         */
	
unsigned char		rx_buf[8] ____cacheline_aligned;
	
unsigned char		tx_buf[8];

};

#ifdef CONFIG_IIO_BUFFER
/* At the moment triggers are only used for ring buffer
 * filling. This may change!
 */

void ade7758_remove_trigger(struct iio_dev *indio_dev);
int ade7758_probe_trigger(struct iio_dev *indio_dev);

ssize_t ade7758_read_data_from_ring(struct device *dev,
				    struct device_attribute *attr, char *buf);

int ade7758_configure_ring(struct iio_dev *indio_dev);
void ade7758_unconfigure_ring(struct iio_dev *indio_dev);

int ade7758_set_irq(struct device *dev, bool enable);

int ade7758_spi_write_reg_8(struct device *dev, u8 reg_address, u8 val);
int ade7758_spi_read_reg_8(struct device *dev, u8 reg_address, u8 *val);

#else /* CONFIG_IIO_BUFFER */



static inline void ade7758_remove_trigger(struct iio_dev *indio_dev)
{
}

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static inline int ade7758_probe_trigger(struct iio_dev *indio_dev)
{
	return 0;
}

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static int ade7758_configure_ring(struct iio_dev *indio_dev)
{
	return 0;
}

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static inline void ade7758_unconfigure_ring(struct iio_dev *indio_dev)
{
}

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static inline int ade7758_initialize_ring(struct iio_ring_buffer *ring)
{
	return 0;
}

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static inline void ade7758_uninitialize_ring(struct iio_dev *indio_dev)
{
}

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#endif /* CONFIG_IIO_BUFFER */

#endif
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Directory: drivers/staging/iio/meter

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