4
#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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* struct ade7759_state - device instance specific data
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* @us: actual spi_device
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* @buf_lock: mutex to protect tx and rx
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* @tx: transmit buffer
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struct ade7759_state {
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struct spi_device *us;
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struct mutex buf_lock;
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u8 tx[ADE7759_MAX_TX] ____cacheline_aligned;
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u8 rx[ADE7759_MAX_RX];