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 / ade7758.h

diff --git a/drivers/staging/iio/meter/ade7758.h b/drivers/staging/iio/meter/ade7758.h
new file mode 100644 (file)
index 0000000..df5bb7b
--- /dev/null
+++ b/drivers/staging/iio/meter/ade7758.h
@@ -0,0 +1,171 @@
+#ifndef _ADE7758_H
+#define _ADE7758_H
+
+#define ADE7758_AWATTHR   0x01
+#define ADE7758_BWATTHR   0x02
+#define ADE7758_CWATTHR   0x03
+#define ADE7758_AVARHR    0x04
+#define ADE7758_BVARHR    0x05
+#define ADE7758_CVARHR    0x06
+#define ADE7758_AVAHR     0x07
+#define ADE7758_BVAHR     0x08
+#define ADE7758_CVAHR     0x09
+#define ADE7758_AIRMS     0x0A
+#define ADE7758_BIRMS     0x0B
+#define ADE7758_CIRMS     0x0C
+#define ADE7758_AVRMS     0x0D
+#define ADE7758_BVRMS     0x0E
+#define ADE7758_CVRMS     0x0F
+#define ADE7758_FREQ      0x10
+#define ADE7758_TEMP      0x11
+#define ADE7758_WFORM     0x12
+#define ADE7758_OPMODE    0x13
+#define ADE7758_MMODE     0x14
+#define ADE7758_WAVMODE   0x15
+#define ADE7758_COMPMODE  0x16
+#define ADE7758_LCYCMODE  0x17
+#define ADE7758_MASK      0x18
+#define ADE7758_STATUS    0x19
+#define ADE7758_RSTATUS   0x1A
+#define ADE7758_ZXTOUT    0x1B
+#define ADE7758_LINECYC   0x1C
+#define ADE7758_SAGCYC    0x1D
+#define ADE7758_SAGLVL    0x1E
+#define ADE7758_VPINTLVL  0x1F
+#define ADE7758_IPINTLVL  0x20
+#define ADE7758_VPEAK     0x21
+#define ADE7758_IPEAK     0x22
+#define ADE7758_GAIN      0x23
+#define ADE7758_AVRMSGAIN 0x24
+#define ADE7758_BVRMSGAIN 0x25
+#define ADE7758_CVRMSGAIN 0x26
+#define ADE7758_AIGAIN    0x27
+#define ADE7758_BIGAIN    0x28
+#define ADE7758_CIGAIN    0x29
+#define ADE7758_AWG       0x2A
+#define ADE7758_BWG       0x2B
+#define ADE7758_CWG       0x2C
+#define ADE7758_AVARG     0x2D
+#define ADE7758_BVARG     0x2E
+#define ADE7758_CVARG     0x2F
+#define ADE7758_AVAG      0x30
+#define ADE7758_BVAG      0x31
+#define ADE7758_CVAG      0x32
+#define ADE7758_AVRMSOS   0x33
+#define ADE7758_BVRMSOS   0x34
+#define ADE7758_CVRMSOS   0x35
+#define ADE7758_AIRMSOS   0x36
+#define ADE7758_BIRMSOS   0x37
+#define ADE7758_CIRMSOS   0x38
+#define ADE7758_AWAITOS   0x39
+#define ADE7758_BWAITOS   0x3A
+#define ADE7758_CWAITOS   0x3B
+#define ADE7758_AVAROS    0x3C
+#define ADE7758_BVAROS    0x3D
+#define ADE7758_CVAROS    0x3E
+#define ADE7758_APHCAL    0x3F
+#define ADE7758_BPHCAL    0x40
+#define ADE7758_CPHCAL    0x41
+#define ADE7758_WDIV      0x42
+#define ADE7758_VADIV     0x44
+#define ADE7758_VARDIV    0x43
+#define ADE7758_APCFNUM   0x45
+#define ADE7758_APCFDEN   0x46
+#define ADE7758_VARCFNUM  0x47
+#define ADE7758_VARCFDEN  0x48
+#define ADE7758_CHKSUM    0x7E
+#define ADE7758_VERSION   0x7F
+
+#define ADE7758_READ_REG(a)    a
+#define ADE7758_WRITE_REG(a) ((a) | 0x80)
+
+#define ADE7758_MAX_TX    8
+#define ADE7758_MAX_RX    4
+#define ADE7758_STARTUP_DELAY 1
+
+#define ADE7758_SPI_SLOW       (u32)(300 * 1000)
+#define ADE7758_SPI_BURST      (u32)(1000 * 1000)
+#define ADE7758_SPI_FAST       (u32)(2000 * 1000)
+
+#define DRIVER_NAME            "ade7758"
+
+/**
+ * struct ade7758_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 ade7758_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;
+};
+#ifdef CONFIG_IIO_RING_BUFFER
+/* At the moment triggers are only used for ring buffer
+ * filling. This may change!
+ */
+
+enum ade7758_scan {
+       ADE7758_SCAN_WFORM,
+};
+
+void ade7758_remove_trigger(struct iio_dev *indio_dev);
+int ade7758_probe_trigger(struct iio_dev *indio_dev);
+
+ssize_t ade7758_read_data_from_ring(struct device *dev,
+               struct device_attribute *attr,
+               char *buf);
+
+
+int ade7758_configure_ring(struct iio_dev *indio_dev);
+void ade7758_unconfigure_ring(struct iio_dev *indio_dev);
+
+int ade7758_initialize_ring(struct iio_ring_buffer *ring);
+void ade7758_uninitialize_ring(struct iio_ring_buffer *ring);
+int ade7758_set_irq(struct device *dev, bool enable);
+#else /* CONFIG_IIO_RING_BUFFER */
+
+static inline void ade7758_remove_trigger(struct iio_dev *indio_dev)
+{
+}
+static inline int ade7758_probe_trigger(struct iio_dev *indio_dev)
+{
+       return 0;
+}
+
+static inline ssize_t
+ade7758_read_data_from_ring(struct device *dev,
+               struct device_attribute *attr,
+               char *buf)
+{
+       return 0;
+}
+
+static int ade7758_configure_ring(struct iio_dev *indio_dev)
+{
+       return 0;
+}
+static inline void ade7758_unconfigure_ring(struct iio_dev *indio_dev)
+{
+}
+static inline int ade7758_initialize_ring(struct iio_ring_buffer *ring)
+{
+       return 0;
+}
+static inline void ade7758_uninitialize_ring(struct iio_ring_buffer *ring)
+{
+}
+#endif /* CONFIG_IIO_RING_BUFFER */
+
+#endif