diff options
Diffstat (limited to 'drivers/iio/iio_core.h')
| -rw-r--r-- | drivers/iio/iio_core.h | 61 |
1 files changed, 44 insertions, 17 deletions
diff --git a/drivers/iio/iio_core.h b/drivers/iio/iio_core.h index 4c45488e3a7f..b7d5f4f0fada 100644 --- a/drivers/iio/iio_core.h +++ b/drivers/iio/iio_core.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* The industrial I/O core function defs. * * 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. - * * These definitions are meant for use only within the IIO core, not individual * drivers. */ @@ -15,10 +12,31 @@ #include <linux/kernel.h> #include <linux/device.h> +struct iio_buffer; struct iio_chan_spec; struct iio_dev; -extern struct device_type iio_device_type; +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); +}; + +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); + +ssize_t do_iio_read_channel_label(struct iio_dev *indio_dev, + const struct iio_chan_spec *c, + char *buf); int __iio_add_chan_devattr(const char *postfix, struct iio_chan_spec const *chan, @@ -32,9 +50,13 @@ int __iio_add_chan_devattr(const char *postfix, 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 */ @@ -43,41 +65,46 @@ ssize_t iio_format_value(char *buf, unsigned int type, int size, int *vals); #ifdef CONFIG_IIO_BUFFER struct poll_table_struct; -unsigned int iio_buffer_poll(struct file *filp, - struct poll_table_struct *wait); -ssize_t iio_buffer_read_first_n_outer(struct file *filp, char __user *buf, - size_t n, loff_t *f_ps); +__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_buffer_alloc_sysfs_and_mask(struct iio_dev *indio_dev); -void iio_buffer_free_sysfs_and_mask(struct iio_dev *indio_dev); +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) -#define iio_buffer_read_first_n_outer_addr (&iio_buffer_read_first_n_outer) +#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_first_n_outer_addr NULL +#define iio_buffer_read_outer_addr NULL +#define iio_buffer_write_outer_addr NULL -static inline int iio_buffer_alloc_sysfs_and_mask(struct iio_dev *indio_dev) +static inline int iio_buffers_alloc_sysfs_and_mask(struct iio_dev *indio_dev) { return 0; } -static inline void iio_buffer_free_sysfs_and_mask(struct iio_dev *indio_dev) {} +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); -int iio_event_getfd(struct iio_dev *indio_dev); struct iio_event_interface; bool iio_event_enabled(const struct iio_event_interface *ev_int); |