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/*
* 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;
const struct iio_chan_spec *ade7758_ring_channels;
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);
void ade7758_uninitialize_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)
{
}
static inline int ade7758_probe_trigger(struct iio_dev *indio_dev)
{
return 0;
}
static int ade7758_configure_ring(struct iio_dev *indio_dev)
{
return 0;
}
static inline void ade7758_unconfigure_ring(struct iio_dev *indio_dev)
{
}
static inline int ade7758_initialize_ring(struct iio_ring_buffer *ring)
{
return 0;
}
static inline void ade7758_uninitialize_ring(struct iio_dev *indio_dev)
{
}
#endif /* CONFIG_IIO_BUFFER */
#endif
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