summaryrefslogtreecommitdiff
path: root/drivers/iio/dummy/iio_simple_dummy.h
diff options
context:
space:
mode:
authorCristina Opriceana <cristina.opriceana@gmail.com>2015-10-09 16:31:28 +0300
committerJonathan Cameron <jic23@kernel.org>2015-10-25 12:33:01 +0000
commit415f792447572ef1949a3cef5119bbce8cc66373 (patch)
tree343fd0cd479ed2962d02bca228e153f845efebe9 /drivers/iio/dummy/iio_simple_dummy.h
parentf0b1643581b376ebd97a0068cbc3d146d6abdff1 (diff)
iio: Move IIO Dummy Driver out of staging
This patch moves the reference IIO dummy driver from drivers/staging/iio into a separate folder, drivers/iio/dummy and adds the proper Kconfig and Makefile for it. A new config menu entry called IIO dummy driver has also been added in the Industrial I/O support menu, corresponding to this driver. Signed-off-by: Cristina Opriceana <cristina.opriceana@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers/iio/dummy/iio_simple_dummy.h')
-rw-r--r--drivers/iio/dummy/iio_simple_dummy.h129
1 files changed, 129 insertions, 0 deletions
diff --git a/drivers/iio/dummy/iio_simple_dummy.h b/drivers/iio/dummy/iio_simple_dummy.h
new file mode 100644
index 000000000000..5c2f4d0401dc
--- /dev/null
+++ b/drivers/iio/dummy/iio_simple_dummy.h
@@ -0,0 +1,129 @@
+/**
+ * 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
+ */
+
+#ifndef _IIO_SIMPLE_DUMMY_H_
+#define _IIO_SIMPLE_DUMMY_H_
+#include <linux/kernel.h>
+
+struct iio_dummy_accel_calibscale;
+struct iio_dummy_regs;
+
+/**
+ * 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 threshold 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;
+ int activity_running;
+ int activity_walking;
+ const struct iio_dummy_accel_calibscale *accel_calibscale;
+ struct mutex lock;
+ struct iio_dummy_regs *regs;
+ int steps_enabled;
+ int steps;
+ int height;
+#ifdef CONFIG_IIO_SIMPLE_DUMMY_EVENTS
+ int event_irq;
+ int event_val;
+ bool event_en;
+ s64 event_timestamp;
+#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,
+ const struct iio_chan_spec *chan,
+ enum iio_event_type type,
+ enum iio_event_direction dir);
+
+int iio_simple_dummy_write_event_config(struct iio_dev *indio_dev,
+ const struct iio_chan_spec *chan,
+ enum iio_event_type type,
+ enum iio_event_direction dir,
+ int state);
+
+int iio_simple_dummy_read_event_value(struct iio_dev *indio_dev,
+ const struct iio_chan_spec *chan,
+ enum iio_event_type type,
+ enum iio_event_direction dir,
+ enum iio_event_info info, int *val,
+ int *val2);
+
+int iio_simple_dummy_write_event_value(struct iio_dev *indio_dev,
+ const struct iio_chan_spec *chan,
+ enum iio_event_type type,
+ enum iio_event_direction dir,
+ enum iio_event_info info, int val,
+ int val2);
+
+int iio_simple_dummy_events_register(struct iio_dev *indio_dev);
+void 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 void
+iio_simple_dummy_events_unregister(struct iio_dev *indio_dev)
+{ };
+
+#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 */
+#endif /* _IIO_SIMPLE_DUMMY_H_ */