1 files changed, 108 insertions, 0 deletions
diff --git a/drivers/staging/iio/iio_simple_dummy.h b/drivers/staging/iio/iio_simple_dummy.h
new file mode 100644
index 000000000000..53975d916fc9
--- /dev/null
+++ b/drivers/staging/iio/iio_simple_dummy.h
@@ -0,0 +1,108 @@
+/**
+ * Copyright (c) 2011 Jonathan Cameron
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * Join together the various functionality of iio_simple_dummy driver
+ */
+
+#include <linux/kernel.h>
+
+struct iio_dummy_accel_calibscale;
+
+/**
+ * struct iio_dummy_state - device instance specific state.
+ * @dac_val:			cache for dac value
+ * @single_ended_adc_val:	cache for single ended adc value
+ * @differential_adc_val:	cache for differential adc value
+ * @accel_val:			cache for acceleration value
+ * @accel_calibbias:		cache for acceleration calibbias
+ * @accel_calibscale:		cache for acceleration calibscale
+ * @lock:			lock to ensure state is consistent
+ * @event_irq:			irq number for event line (faked)
+ * @event_val:			cache for event theshold value
+ * @event_en:			cache of whether event is enabled
+ */
+struct iio_dummy_state {
+	int dac_val;
+	int single_ended_adc_val;
+	int differential_adc_val[2];
+	int accel_val;
+	int accel_calibbias;
+	const struct iio_dummy_accel_calibscale *accel_calibscale;
+	struct mutex lock;
+#ifdef CONFIG_IIO_SIMPLE_DUMMY_EVENTS
+	int event_irq;
+	int event_val;
+	bool event_en;
+#endif /* CONFIG_IIO_SIMPLE_DUMMY_EVENTS */
+};
+
+#ifdef CONFIG_IIO_SIMPLE_DUMMY_EVENTS
+
+struct iio_dev;
+
+int iio_simple_dummy_read_event_config(struct iio_dev *indio_dev,
+				       u64 event_code);
+
+int iio_simple_dummy_write_event_config(struct iio_dev *indio_dev,
+					u64 event_code,
+					int state);
+
+int iio_simple_dummy_read_event_value(struct iio_dev *indio_dev,
+				      u64 event_code,
+				      int *val);
+
+int iio_simple_dummy_write_event_value(struct iio_dev *indio_dev,
+				       u64 event_code,
+				       int val);
+
+int iio_simple_dummy_events_register(struct iio_dev *indio_dev);
+int iio_simple_dummy_events_unregister(struct iio_dev *indio_dev);
+
+#else /* Stubs for when events are disabled at compile time */
+
+static inline int
+iio_simple_dummy_events_register(struct iio_dev *indio_dev)
+{
+	return 0;
+};
+
+static inline int
+iio_simple_dummy_events_unregister(struct iio_dev *indio_dev)
+{
+	return 0;
+};
+
+#endif /* CONFIG_IIO_SIMPLE_DUMMY_EVENTS*/
+
+/**
+ * enum iio_simple_dummy_scan_elements - scan index enum
+ * @voltage0:		the single ended voltage channel
+ * @diffvoltage1m2:	first differential channel
+ * @diffvoltage3m4:	second differenial channel
+ * @accelx:		acceleration channel
+ *
+ * Enum provides convenient numbering for the scan index.
+ */
+enum iio_simple_dummy_scan_elements {
+	voltage0,
+	diffvoltage1m2,
+	diffvoltage3m4,
+	accelx,
+};
+
+#ifdef CONFIG_IIO_SIMPLE_DUMMY_BUFFER
+int iio_simple_dummy_configure_buffer(struct iio_dev *indio_dev);
+void iio_simple_dummy_unconfigure_buffer(struct iio_dev *indio_dev);
+#else
+static inline int iio_simple_dummy_configure_buffer(struct iio_dev *indio_dev)
+{
+	return 0;
+};
+static inline
+void iio_simple_dummy_unconfigure_buffer(struct iio_dev *indio_dev)
+{};
+#endif /* CONFIG_IIO_SIMPLE_DUMMY_BUFFER */