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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-03-25 03:53:42 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-03-25 03:53:42 -0300
commit03dd4cb26d967f9588437b0fc9cc0e8353322bb7 (patch)
treefa581f6dc1c0596391690d1f67eceef3af8246dc /include/linux/iio/sw_trigger.h
parentd4e493caf788ef44982e131ff9c786546904d934 (diff)
Linux-libre 4.5-gnu
Diffstat (limited to 'include/linux/iio/sw_trigger.h')
-rw-r--r--include/linux/iio/sw_trigger.h70
1 files changed, 70 insertions, 0 deletions
diff --git a/include/linux/iio/sw_trigger.h b/include/linux/iio/sw_trigger.h
new file mode 100644
index 000000000..5198f8ed0
--- /dev/null
+++ b/include/linux/iio/sw_trigger.h
@@ -0,0 +1,70 @@
+/*
+ * Industrial I/O software trigger interface
+ *
+ * Copyright (c) 2015 Intel Corporation
+ *
+ * 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.
+ */
+
+#ifndef __IIO_SW_TRIGGER
+#define __IIO_SW_TRIGGER
+
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/iio/iio.h>
+#include <linux/configfs.h>
+
+#define module_iio_sw_trigger_driver(__iio_sw_trigger_type) \
+ module_driver(__iio_sw_trigger_type, iio_register_sw_trigger_type, \
+ iio_unregister_sw_trigger_type)
+
+struct iio_sw_trigger_ops;
+
+struct iio_sw_trigger_type {
+ const char *name;
+ struct module *owner;
+ const struct iio_sw_trigger_ops *ops;
+ struct list_head list;
+ struct config_group *group;
+};
+
+struct iio_sw_trigger {
+ struct iio_trigger *trigger;
+ struct iio_sw_trigger_type *trigger_type;
+ struct config_group group;
+};
+
+struct iio_sw_trigger_ops {
+ struct iio_sw_trigger* (*probe)(const char *);
+ int (*remove)(struct iio_sw_trigger *);
+};
+
+static inline
+struct iio_sw_trigger *to_iio_sw_trigger(struct config_item *item)
+{
+ return container_of(to_config_group(item), struct iio_sw_trigger,
+ group);
+}
+
+int iio_register_sw_trigger_type(struct iio_sw_trigger_type *tt);
+void iio_unregister_sw_trigger_type(struct iio_sw_trigger_type *tt);
+
+struct iio_sw_trigger *iio_sw_trigger_create(const char *, const char *);
+void iio_sw_trigger_destroy(struct iio_sw_trigger *);
+
+int iio_sw_trigger_type_configfs_register(struct iio_sw_trigger_type *tt);
+void iio_sw_trigger_type_configfs_unregister(struct iio_sw_trigger_type *tt);
+
+static inline
+void iio_swt_group_init_type_name(struct iio_sw_trigger *t,
+ const char *name,
+ struct config_item_type *type)
+{
+#ifdef CONFIG_CONFIGFS_FS
+ config_group_init_type_name(&t->group, name, type);
+#endif
+}
+
+#endif /* __IIO_SW_TRIGGER */