Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 111 insertions, 0 deletions

diff --git a/drivers/iio/iio_core.h b/drivers/iio/iio_core.h
new file mode 100644
index 000000000..501e28670
--- /dev/null
+++ b/drivers/iio/iio_core.h
@@ -0,0 +1,111 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* The industrial I/O core function defs.
+ *
+ * Copyright (c) 2008 Jonathan Cameron
+ *
+ * These definitions are meant for use only within the IIO core, not individual
+ * drivers.
+ */
+
+#ifndef _IIO_CORE_H_
+#define _IIO_CORE_H_
+#include <linux/kernel.h>
+#include <linux/device.h>
+
+struct iio_buffer;
+struct iio_chan_spec;
+struct iio_dev;
+
+extern const struct device_type iio_device_type;
+
+struct iio_dev_buffer_pair {
+	struct iio_dev		*indio_dev;
+	struct iio_buffer	*buffer;
+};
+
+#define IIO_IOCTL_UNHANDLED	1
+struct iio_ioctl_handler {
+	struct list_head entry;
+	long (*ioctl)(struct iio_dev *indio_dev, struct file *filp,
+		      unsigned int cmd, unsigned long arg);
+};
+
+long iio_device_ioctl(struct iio_dev *indio_dev, struct file *filp,
+		      unsigned int cmd, unsigned long arg);
+
+void iio_device_ioctl_handler_register(struct iio_dev *indio_dev,
+				       struct iio_ioctl_handler *h);
+void iio_device_ioctl_handler_unregister(struct iio_ioctl_handler *h);
+
+int __iio_add_chan_devattr(const char *postfix,
+			   struct iio_chan_spec const *chan,
+			   ssize_t (*func)(struct device *dev,
+					   struct device_attribute *attr,
+					   char *buf),
+			   ssize_t (*writefunc)(struct device *dev,
+						struct device_attribute *attr,
+						const char *buf,
+						size_t len),
+			   u64 mask,
+			   enum iio_shared_by shared_by,
+			   struct device *dev,
+			   struct iio_buffer *buffer,
+			   struct list_head *attr_list);
+void iio_free_chan_devattr_list(struct list_head *attr_list);
+
+int iio_device_register_sysfs_group(struct iio_dev *indio_dev,
+				    const struct attribute_group *group);
+
+ssize_t iio_format_value(char *buf, unsigned int type, int size, int *vals);
+
+/* Event interface flags */
+#define IIO_BUSY_BIT_POS 1
+
+#ifdef CONFIG_IIO_BUFFER
+struct poll_table_struct;
+
+__poll_t iio_buffer_poll_wrapper(struct file *filp,
+				 struct poll_table_struct *wait);
+ssize_t iio_buffer_read_wrapper(struct file *filp, char __user *buf,
+				size_t n, loff_t *f_ps);
+ssize_t iio_buffer_write_wrapper(struct file *filp, const char __user *buf,
+				 size_t n, loff_t *f_ps);
+
+int iio_buffers_alloc_sysfs_and_mask(struct iio_dev *indio_dev);
+void iio_buffers_free_sysfs_and_mask(struct iio_dev *indio_dev);
+
+#define iio_buffer_poll_addr (&iio_buffer_poll_wrapper)
+#define iio_buffer_read_outer_addr (&iio_buffer_read_wrapper)
+#define iio_buffer_write_outer_addr (&iio_buffer_write_wrapper)
+
+void iio_disable_all_buffers(struct iio_dev *indio_dev);
+void iio_buffer_wakeup_poll(struct iio_dev *indio_dev);
+void iio_device_detach_buffers(struct iio_dev *indio_dev);
+
+#else
+
+#define iio_buffer_poll_addr NULL
+#define iio_buffer_read_outer_addr NULL
+#define iio_buffer_write_outer_addr NULL
+
+static inline int iio_buffers_alloc_sysfs_and_mask(struct iio_dev *indio_dev)
+{
+	return 0;
+}
+
+static inline void iio_buffers_free_sysfs_and_mask(struct iio_dev *indio_dev) {}
+
+static inline void iio_disable_all_buffers(struct iio_dev *indio_dev) {}
+static inline void iio_buffer_wakeup_poll(struct iio_dev *indio_dev) {}
+static inline void iio_device_detach_buffers(struct iio_dev *indio_dev) {}
+
+#endif
+
+int iio_device_register_eventset(struct iio_dev *indio_dev);
+void iio_device_unregister_eventset(struct iio_dev *indio_dev);
+void iio_device_wakeup_eventset(struct iio_dev *indio_dev);
+
+struct iio_event_interface;
+bool iio_event_enabled(const struct iio_event_interface *ev_int);
+
+#endif