1/* 2 * ADE7758 Poly Phase Multifunction Energy Metering IC driver 3 * 4 * Copyright 2010-2011 Analog Devices Inc. 5 * 6 * Licensed under the GPL-2. 7 */ 8 9#ifndef _ADE7758_H 10#define _ADE7758_H 11 12#define ADE7758_AWATTHR 0x01 13#define ADE7758_BWATTHR 0x02 14#define ADE7758_CWATTHR 0x03 15#define ADE7758_AVARHR 0x04 16#define ADE7758_BVARHR 0x05 17#define ADE7758_CVARHR 0x06 18#define ADE7758_AVAHR 0x07 19#define ADE7758_BVAHR 0x08 20#define ADE7758_CVAHR 0x09 21#define ADE7758_AIRMS 0x0A 22#define ADE7758_BIRMS 0x0B 23#define ADE7758_CIRMS 0x0C 24#define ADE7758_AVRMS 0x0D 25#define ADE7758_BVRMS 0x0E 26#define ADE7758_CVRMS 0x0F 27#define ADE7758_FREQ 0x10 28#define ADE7758_TEMP 0x11 29#define ADE7758_WFORM 0x12 30#define ADE7758_OPMODE 0x13 31#define ADE7758_MMODE 0x14 32#define ADE7758_WAVMODE 0x15 33#define ADE7758_COMPMODE 0x16 34#define ADE7758_LCYCMODE 0x17 35#define ADE7758_MASK 0x18 36#define ADE7758_STATUS 0x19 37#define ADE7758_RSTATUS 0x1A 38#define ADE7758_ZXTOUT 0x1B 39#define ADE7758_LINECYC 0x1C 40#define ADE7758_SAGCYC 0x1D 41#define ADE7758_SAGLVL 0x1E 42#define ADE7758_VPINTLVL 0x1F 43#define ADE7758_IPINTLVL 0x20 44#define ADE7758_VPEAK 0x21 45#define ADE7758_IPEAK 0x22 46#define ADE7758_GAIN 0x23 47#define ADE7758_AVRMSGAIN 0x24 48#define ADE7758_BVRMSGAIN 0x25 49#define ADE7758_CVRMSGAIN 0x26 50#define ADE7758_AIGAIN 0x27 51#define ADE7758_BIGAIN 0x28 52#define ADE7758_CIGAIN 0x29 53#define ADE7758_AWG 0x2A 54#define ADE7758_BWG 0x2B 55#define ADE7758_CWG 0x2C 56#define ADE7758_AVARG 0x2D 57#define ADE7758_BVARG 0x2E 58#define ADE7758_CVARG 0x2F 59#define ADE7758_AVAG 0x30 60#define ADE7758_BVAG 0x31 61#define ADE7758_CVAG 0x32 62#define ADE7758_AVRMSOS 0x33 63#define ADE7758_BVRMSOS 0x34 64#define ADE7758_CVRMSOS 0x35 65#define ADE7758_AIRMSOS 0x36 66#define ADE7758_BIRMSOS 0x37 67#define ADE7758_CIRMSOS 0x38 68#define ADE7758_AWAITOS 0x39 69#define ADE7758_BWAITOS 0x3A 70#define ADE7758_CWAITOS 0x3B 71#define ADE7758_AVAROS 0x3C 72#define ADE7758_BVAROS 0x3D 73#define ADE7758_CVAROS 0x3E 74#define ADE7758_APHCAL 0x3F 75#define ADE7758_BPHCAL 0x40 76#define ADE7758_CPHCAL 0x41 77#define ADE7758_WDIV 0x42 78#define ADE7758_VADIV 0x44 79#define ADE7758_VARDIV 0x43 80#define ADE7758_APCFNUM 0x45 81#define ADE7758_APCFDEN 0x46 82#define ADE7758_VARCFNUM 0x47 83#define ADE7758_VARCFDEN 0x48 84#define ADE7758_CHKSUM 0x7E 85#define ADE7758_VERSION 0x7F 86 87#define ADE7758_READ_REG(a) a 88#define ADE7758_WRITE_REG(a) ((a) | 0x80) 89 90#define ADE7758_MAX_TX 8 91#define ADE7758_MAX_RX 4 92#define ADE7758_STARTUP_DELAY 1 93 94#define AD7758_NUM_WAVSEL 5 95#define AD7758_NUM_PHSEL 3 96#define AD7758_NUM_WAVESRC (AD7758_NUM_WAVSEL * AD7758_NUM_PHSEL) 97 98#define AD7758_PHASE_A 0 99#define AD7758_PHASE_B 1 100#define AD7758_PHASE_C 2 101#define AD7758_CURRENT 0 102#define AD7758_VOLTAGE 1 103#define AD7758_ACT_PWR 2 104#define AD7758_REACT_PWR 3 105#define AD7758_APP_PWR 4 106#define AD7758_WT(p, w) (((w) << 2) | (p)) 107 108/** 109 * struct ade7758_state - device instance specific data 110 * @us: actual spi_device 111 * @trig: data ready trigger registered with iio 112 * @tx: transmit buffer 113 * @rx: receive buffer 114 * @buf_lock: mutex to protect tx and rx 115 **/ 116struct ade7758_state { 117 struct spi_device *us; 118 struct iio_trigger *trig; 119 u8 *tx; 120 u8 *rx; 121 struct mutex buf_lock; 122 struct spi_transfer ring_xfer[4]; 123 struct spi_message ring_msg; 124 /* 125 * DMA (thus cache coherency maintenance) requires the 126 * transfer buffers to live in their own cache lines. 127 */ 128 unsigned char rx_buf[8] ____cacheline_aligned; 129 unsigned char tx_buf[8]; 130 131}; 132#ifdef CONFIG_IIO_BUFFER 133/* At the moment triggers are only used for ring buffer 134 * filling. This may change! 135 */ 136 137void ade7758_remove_trigger(struct iio_dev *indio_dev); 138int ade7758_probe_trigger(struct iio_dev *indio_dev); 139 140ssize_t ade7758_read_data_from_ring(struct device *dev, 141 struct device_attribute *attr, 142 char *buf); 143 144 145int ade7758_configure_ring(struct iio_dev *indio_dev); 146void ade7758_unconfigure_ring(struct iio_dev *indio_dev); 147 148int ade7758_set_irq(struct device *dev, bool enable); 149 150int ade7758_spi_write_reg_8(struct device *dev, 151 u8 reg_address, u8 val); 152int ade7758_spi_read_reg_8(struct device *dev, 153 u8 reg_address, u8 *val); 154 155#else /* CONFIG_IIO_BUFFER */ 156 157static inline void ade7758_remove_trigger(struct iio_dev *indio_dev) 158{ 159} 160static inline int ade7758_probe_trigger(struct iio_dev *indio_dev) 161{ 162 return 0; 163} 164 165static int ade7758_configure_ring(struct iio_dev *indio_dev) 166{ 167 return 0; 168} 169static inline void ade7758_unconfigure_ring(struct iio_dev *indio_dev) 170{ 171} 172static inline int ade7758_initialize_ring(struct iio_ring_buffer *ring) 173{ 174 return 0; 175} 176static inline void ade7758_uninitialize_ring(struct iio_dev *indio_dev) 177{ 178} 179#endif /* CONFIG_IIO_BUFFER */ 180 181#endif 182