Merge tag 'v2.6.38' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

[mv-sheeva.git] / drivers / staging / iio / meter / ade7754.h

diff --git a/drivers/staging/iio/meter/ade7754.h b/drivers/staging/iio/meter/ade7754.h
new file mode 100644 (file)
index 0000000..f6a3e4b
--- /dev/null
+++ b/drivers/staging/iio/meter/ade7754.h
@@ -0,0 +1,161 @@
+#ifndef _ADE7754_H
+#define _ADE7754_H
+
+#define ADE7754_AENERGY   0x01
+#define ADE7754_RAENERGY  0x02
+#define ADE7754_LAENERGY  0x03
+#define ADE7754_VAENERGY  0x04
+#define ADE7754_RVAENERGY 0x05
+#define ADE7754_LVAENERGY 0x06
+#define ADE7754_PERIOD    0x07
+#define ADE7754_TEMP      0x08
+#define ADE7754_WFORM     0x09
+#define ADE7754_OPMODE    0x0A
+#define ADE7754_MMODE     0x0B
+#define ADE7754_WAVMODE   0x0C
+#define ADE7754_WATMODE   0x0D
+#define ADE7754_VAMODE    0x0E
+#define ADE7754_IRQEN     0x0F
+#define ADE7754_STATUS    0x10
+#define ADE7754_RSTATUS   0x11
+#define ADE7754_ZXTOUT    0x12
+#define ADE7754_LINCYC    0x13
+#define ADE7754_SAGCYC    0x14
+#define ADE7754_SAGLVL    0x15
+#define ADE7754_VPEAK     0x16
+#define ADE7754_IPEAK     0x17
+#define ADE7754_GAIN      0x18
+#define ADE7754_AWG       0x19
+#define ADE7754_BWG       0x1A
+#define ADE7754_CWG       0x1B
+#define ADE7754_AVAG      0x1C
+#define ADE7754_BVAG      0x1D
+#define ADE7754_CVAG      0x1E
+#define ADE7754_APHCAL    0x1F
+#define ADE7754_BPHCAL    0x20
+#define ADE7754_CPHCAL    0x21
+#define ADE7754_AAPOS     0x22
+#define ADE7754_BAPOS     0x23
+#define ADE7754_CAPOS     0x24
+#define ADE7754_CFNUM     0x25
+#define ADE7754_CFDEN     0x26
+#define ADE7754_WDIV      0x27
+#define ADE7754_VADIV     0x28
+#define ADE7754_AIRMS     0x29
+#define ADE7754_BIRMS     0x2A
+#define ADE7754_CIRMS     0x2B
+#define ADE7754_AVRMS     0x2C
+#define ADE7754_BVRMS     0x2D
+#define ADE7754_CVRMS     0x2E
+#define ADE7754_AIRMSOS   0x2F
+#define ADE7754_BIRMSOS   0x30
+#define ADE7754_CIRMSOS   0x31
+#define ADE7754_AVRMSOS   0x32
+#define ADE7754_BVRMSOS   0x33
+#define ADE7754_CVRMSOS   0x34
+#define ADE7754_AAPGAIN   0x35
+#define ADE7754_BAPGAIN   0x36
+#define ADE7754_CAPGAIN   0x37
+#define ADE7754_AVGAIN    0x38
+#define ADE7754_BVGAIN    0x39
+#define ADE7754_CVGAIN    0x3A
+#define ADE7754_CHKSUM    0x3E
+#define ADE7754_VERSION   0x3F
+
+#define ADE7754_READ_REG(a)    a
+#define ADE7754_WRITE_REG(a) ((a) | 0x80)
+
+#define ADE7754_MAX_TX    4
+#define ADE7754_MAX_RX    4
+#define ADE7754_STARTUP_DELAY 1
+
+#define ADE7754_SPI_SLOW       (u32)(300 * 1000)
+#define ADE7754_SPI_BURST      (u32)(1000 * 1000)
+#define ADE7754_SPI_FAST       (u32)(2000 * 1000)
+
+#define DRIVER_NAME            "ade7754"
+
+/**
+ * struct ade7754_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 ade7754_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 ade7754_scan {
+       ADE7754_SCAN_PHA_V,
+       ADE7754_SCAN_PHB_V,
+       ADE7754_SCAN_PHC_V,
+       ADE7754_SCAN_PHA_I,
+       ADE7754_SCAN_PHB_I,
+       ADE7754_SCAN_PHC_I,
+};
+
+void ade7754_remove_trigger(struct iio_dev *indio_dev);
+int ade7754_probe_trigger(struct iio_dev *indio_dev);
+
+ssize_t ade7754_read_data_from_ring(struct device *dev,
+                                     struct device_attribute *attr,
+                                     char *buf);
+
+
+int ade7754_configure_ring(struct iio_dev *indio_dev);
+void ade7754_unconfigure_ring(struct iio_dev *indio_dev);
+
+int ade7754_initialize_ring(struct iio_ring_buffer *ring);
+void ade7754_uninitialize_ring(struct iio_ring_buffer *ring);
+#else /* CONFIG_IIO_RING_BUFFER */
+
+static inline void ade7754_remove_trigger(struct iio_dev *indio_dev)
+{
+}
+static inline int ade7754_probe_trigger(struct iio_dev *indio_dev)
+{
+       return 0;
+}
+
+static inline ssize_t
+ade7754_read_data_from_ring(struct device *dev,
+                             struct device_attribute *attr,
+                             char *buf)
+{
+       return 0;
+}
+
+static int ade7754_configure_ring(struct iio_dev *indio_dev)
+{
+       return 0;
+}
+static inline void ade7754_unconfigure_ring(struct iio_dev *indio_dev)
+{
+}
+static inline int ade7754_initialize_ring(struct iio_ring_buffer *ring)
+{
+       return 0;
+}
+static inline void ade7754_uninitialize_ring(struct iio_ring_buffer *ring)
+{
+}
+#endif /* CONFIG_IIO_RING_BUFFER */
+
+#endif