iio: Move iio userspace applications out of staging

This patch moves iio userspace applications out of staging, to tools/iio/
and adds a Makefile in order to compile them easily. It also adds tools/iio/
to MAINTAINERS file.

Signed-off-by: Roberta Dobrescu <roberta.dobrescu@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

1 files changed, 71 insertions, 0 deletions

diff --git a/tools/iio/iio_utils.h b/tools/iio/iio_utils.h
new file mode 100644
index 000000000000..1bc837b2d769
--- /dev/null
+++ b/tools/iio/iio_utils.h
@@ -0,0 +1,71 @@
+#ifndef _IIO_UTILS_H_
+#define _IIO_UTILS_H_
+
+/* IIO - useful set of util functionality
+ *
+ * Copyright (c) 2008 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.
+ */
+
+#include <stdint.h>
+
+/* Made up value to limit allocation sizes */
+#define IIO_MAX_NAME_LENGTH 30
+
+#define FORMAT_SCAN_ELEMENTS_DIR "%s/scan_elements"
+#define FORMAT_TYPE_FILE "%s_type"
+
+extern const char *iio_dir;
+
+/**
+ * struct iio_channel_info - information about a given channel
+ * @name: channel name
+ * @generic_name: general name for channel type
+ * @scale: scale factor to be applied for conversion to si units
+ * @offset: offset to be applied for conversion to si units
+ * @index: the channel index in the buffer output
+ * @bytes: number of bytes occupied in buffer output
+ * @mask: a bit mask for the raw output
+ * @is_signed: is the raw value stored signed
+ * @enabled: is this channel enabled
+ **/
+struct iio_channel_info {
+	char *name;
+	char *generic_name;
+	float scale;
+	float offset;
+	unsigned index;
+	unsigned bytes;
+	unsigned bits_used;
+	unsigned shift;
+	uint64_t mask;
+	unsigned be;
+	unsigned is_signed;
+	unsigned location;
+};
+
+int iioutils_break_up_name(const char *full_name, char **generic_name);
+int iioutils_get_type(unsigned *is_signed, unsigned *bytes,
+					  unsigned *bits_used, unsigned *shift,
+					  uint64_t *mask, unsigned *be,
+					  const char *device_dir, const char *name,
+					  const char *generic_name);
+int iioutils_get_param_float(float *output, const char *param_name,
+							 const char *device_dir, const char *name,
+							 const char *generic_name);
+void bsort_channel_array_by_index(struct iio_channel_info **ci_array, int cnt);
+int build_channel_array(const char *device_dir,
+						struct iio_channel_info **ci_array, int *counter);
+int find_type_by_name(const char *name, const char *type);
+int write_sysfs_int(char *filename, char *basedir, int val);
+int write_sysfs_int_and_verify(char *filename, char *basedir, int val);
+int write_sysfs_string_and_verify(char *filename, char *basedir, char *val);
+int write_sysfs_string(char *filename, char *basedir, char *val);
+int read_sysfs_posint(char *filename, char *basedir);
+int read_sysfs_float(char *filename, char *basedir, float *val);
+int read_sysfs_string(const char *filename, const char *basedir, char *str);
+
+#endif /* _IIO_UTILS_H_ */