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Diffstat (limited to '')
| -rw-r--r-- | drivers/staging/iio/meter/ade7753.h | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/drivers/staging/iio/meter/ade7753.h b/drivers/staging/iio/meter/ade7753.h new file mode 100644 index 000000000000..a3722b8c90fa --- /dev/null +++ b/drivers/staging/iio/meter/ade7753.h @@ -0,0 +1,140 @@ +#ifndef _ADE7753_H +#define _ADE7753_H + +#define ADE7753_WAVEFORM 0x01 +#define ADE7753_AENERGY 0x02 +#define ADE7753_RAENERGY 0x03 +#define ADE7753_LAENERGY 0x04 +#define ADE7753_VAENERGY 0x05 +#define ADE7753_RVAENERGY 0x06 +#define ADE7753_LVAENERGY 0x07 +#define ADE7753_LVARENERGY 0x08 +#define ADE7753_MODE 0x09 +#define ADE7753_IRQEN 0x0A +#define ADE7753_STATUS 0x0B +#define ADE7753_RSTSTATUS 0x0C +#define ADE7753_CH1OS 0x0D +#define ADE7753_CH2OS 0x0E +#define ADE7753_GAIN 0x0F +#define ADE7753_PHCAL 0x10 +#define ADE7753_APOS 0x11 +#define ADE7753_WGAIN 0x12 +#define ADE7753_WDIV 0x13 +#define ADE7753_CFNUM 0x14 +#define ADE7753_CFDEN 0x15 +#define ADE7753_IRMS 0x16 +#define ADE7753_VRMS 0x17 +#define ADE7753_IRMSOS 0x18 +#define ADE7753_VRMSOS 0x19 +#define ADE7753_VAGAIN 0x1A +#define ADE7753_VADIV 0x1B +#define ADE7753_LINECYC 0x1C +#define ADE7753_ZXTOUT 0x1D +#define ADE7753_SAGCYC 0x1E +#define ADE7753_SAGLVL 0x1F +#define ADE7753_IPKLVL 0x20 +#define ADE7753_VPKLVL 0x21 +#define ADE7753_IPEAK 0x22 +#define ADE7753_RSTIPEAK 0x23 +#define ADE7753_VPEAK 0x24 +#define ADE7753_RSTVPEAK 0x25 +#define ADE7753_TEMP 0x26 +#define ADE7753_PERIOD 0x27 +#define ADE7753_TMODE 0x3D +#define ADE7753_CHKSUM 0x3E +#define ADE7753_DIEREV 0x3F + +#define ADE7753_READ_REG(a) a +#define ADE7753_WRITE_REG(a) ((a) | 0x80) + +#define ADE7753_MAX_TX 4 +#define ADE7753_MAX_RX 4 +#define ADE7753_STARTUP_DELAY 1 + +#define ADE7753_SPI_SLOW (u32)(300 * 1000) +#define ADE7753_SPI_BURST (u32)(1000 * 1000) +#define ADE7753_SPI_FAST (u32)(2000 * 1000) + +#define DRIVER_NAME "ade7753" + +/** + * struct ade7753_state - device instance specific data + * @us: actual spi_device + * @work_trigger_to_ring: bh for triggered event handling + * @inter: used to check if new interrupt has been triggered + * @last_timestamp: passing timestamp from th to bh of interrupt handler + * @indio_dev: industrial I/O device structure + * @trig: data ready trigger registered with iio + * @tx: transmit buffer + * @rx: recieve buffer + * @buf_lock: mutex to protect tx and rx + **/ +struct ade7753_state { + struct spi_device *us; + struct work_struct work_trigger_to_ring; + s64 last_timestamp; + struct iio_dev *indio_dev; + struct iio_trigger *trig; + u8 *tx; + u8 *rx; + struct mutex buf_lock; +}; +#if defined(CONFIG_IIO_RING_BUFFER) && defined(THIS_HAS_RING_BUFFER_SUPPORT) +/* At the moment triggers are only used for ring buffer + * filling. This may change! + */ + +enum ade7753_scan { + ADE7753_SCAN_ACTIVE_POWER, + ADE7753_SCAN_CH1, + ADE7753_SCAN_CH2, +}; + +void ade7753_remove_trigger(struct iio_dev *indio_dev); +int ade7753_probe_trigger(struct iio_dev *indio_dev); + +ssize_t ade7753_read_data_from_ring(struct device *dev, + struct device_attribute *attr, + char *buf); + + +int ade7753_configure_ring(struct iio_dev *indio_dev); +void ade7753_unconfigure_ring(struct iio_dev *indio_dev); + +int ade7753_initialize_ring(struct iio_ring_buffer *ring); +void ade7753_uninitialize_ring(struct iio_ring_buffer *ring); +#else /* CONFIG_IIO_RING_BUFFER */ + +static inline void ade7753_remove_trigger(struct iio_dev *indio_dev) +{ +} +static inline int ade7753_probe_trigger(struct iio_dev *indio_dev) +{ + return 0; +} + +static inline ssize_t +ade7753_read_data_from_ring(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + return 0; +} + +static int ade7753_configure_ring(struct iio_dev *indio_dev) +{ + return 0; +} +static inline void ade7753_unconfigure_ring(struct iio_dev *indio_dev) +{ +} +static inline int ade7753_initialize_ring(struct iio_ring_buffer *ring) +{ + return 0; +} +static inline void ade7753_uninitialize_ring(struct iio_ring_buffer *ring) +{ +} +#endif /* CONFIG_IIO_RING_BUFFER */ + +#endif |