diff options
Diffstat (limited to 'drivers/staging/iio/meter/ade7753.c')
| -rw-r--r-- | drivers/staging/iio/meter/ade7753.c | 82 |
1 files changed, 74 insertions, 8 deletions
diff --git a/drivers/staging/iio/meter/ade7753.c b/drivers/staging/iio/meter/ade7753.c index 671dc99..b71fbd3 100644 --- a/drivers/staging/iio/meter/ade7753.c +++ b/drivers/staging/iio/meter/ade7753.c @@ -6,22 +6,88 @@ * Licensed under the GPL-2 or later. */ -#include <linux/interrupt.h> -#include <linux/irq.h> #include <linux/delay.h> -#include <linux/mutex.h> #include <linux/device.h> +#include <linux/interrupt.h> +#include <linux/irq.h> #include <linux/kernel.h> -#include <linux/spi/spi.h> -#include <linux/slab.h> -#include <linux/sysfs.h> #include <linux/list.h> #include <linux/module.h> - +#include <linux/mutex.h> +#include <linux/slab.h> +#include <linux/sysfs.h> #include <linux/iio/iio.h> #include <linux/iio/sysfs.h> +#include <linux/spi/spi.h> #include "meter.h" -#include "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 1000 + +#define ADE7753_SPI_SLOW (u32)(300 * 1000) +#define ADE7753_SPI_BURST (u32)(1000 * 1000) +#define ADE7753_SPI_FAST (u32)(2000 * 1000) + +/** + * struct ade7753_state - device instance specific data + * @us: actual spi_device + * @tx: transmit buffer + * @rx: receive buffer + * @buf_lock: mutex to protect tx and rx + **/ +struct ade7753_state { + struct spi_device *us; + struct mutex buf_lock; + u8 tx[ADE7753_MAX_TX] ____cacheline_aligned; + u8 rx[ADE7753_MAX_RX]; +}; static int ade7753_spi_write_reg_8(struct device *dev, u8 reg_address, |
