7cbb753701
Currently we use two different naming schemes in the IIO API, iio_verb_object and iio_object_verb. E.g iio_device_register and iio_allocate_device. This patches renames instances of the later to the former. The patch also renames allocate to alloc as this seems to be the preferred form throughout the kernel. In particular the following renames are performed by the patch: iio_put_device -> iio_device_put iio_allocate_device -> iio_device_alloc iio_free_device -> iio_device_free iio_get_trigger -> iio_trigger_get iio_put_trigger -> iio_trigger_put iio_allocate_trigger -> iio_trigger_alloc iio_free_trigger -> iio_trigger_free The conversion was done with the following coccinelle patch with manual fixes to comments and documentation. <smpl> @@ @@ -iio_put_device +iio_device_put @@ @@ -iio_allocate_device +iio_device_alloc @@ @@ -iio_free_device +iio_device_free @@ @@ -iio_get_trigger +iio_trigger_get @@ @@ -iio_put_trigger +iio_trigger_put @@ @@ -iio_allocate_trigger +iio_trigger_alloc @@ @@ -iio_free_trigger +iio_trigger_free </smpl> Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
120 lines
3.4 KiB
C
120 lines
3.4 KiB
C
/* The industrial I/O core, trigger handling functions
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*
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* Copyright (c) 2008 Jonathan Cameron
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published by
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* the Free Software Foundation.
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*/
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#include <linux/irq.h>
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#include <linux/module.h>
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#ifndef _IIO_TRIGGER_H_
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#define _IIO_TRIGGER_H_
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struct iio_subirq {
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bool enabled;
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};
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/**
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* struct iio_trigger_ops - operations structure for an iio_trigger.
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* @owner: used to monitor usage count of the trigger.
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* @set_trigger_state: switch on/off the trigger on demand
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* @try_reenable: function to reenable the trigger when the
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* use count is zero (may be NULL)
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* @validate_device: function to validate the device when the
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* current trigger gets changed.
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*
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* This is typically static const within a driver and shared by
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* instances of a given device.
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**/
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struct iio_trigger_ops {
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struct module *owner;
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int (*set_trigger_state)(struct iio_trigger *trig, bool state);
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int (*try_reenable)(struct iio_trigger *trig);
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int (*validate_device)(struct iio_trigger *trig,
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struct iio_dev *indio_dev);
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};
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/**
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* struct iio_trigger - industrial I/O trigger device
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*
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* @id: [INTERN] unique id number
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* @name: [DRIVER] unique name
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* @dev: [DRIVER] associated device (if relevant)
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* @private_data: [DRIVER] device specific data
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* @list: [INTERN] used in maintenance of global trigger list
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* @alloc_list: [DRIVER] used for driver specific trigger list
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* @use_count: use count for the trigger
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* @subirq_chip: [INTERN] associate 'virtual' irq chip.
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* @subirq_base: [INTERN] base number for irqs provided by trigger.
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* @subirqs: [INTERN] information about the 'child' irqs.
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* @pool: [INTERN] bitmap of irqs currently in use.
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* @pool_lock: [INTERN] protection of the irq pool.
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**/
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struct iio_trigger {
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const struct iio_trigger_ops *ops;
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int id;
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const char *name;
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struct device dev;
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void *private_data;
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struct list_head list;
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struct list_head alloc_list;
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int use_count;
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struct irq_chip subirq_chip;
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int subirq_base;
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struct iio_subirq subirqs[CONFIG_IIO_CONSUMERS_PER_TRIGGER];
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unsigned long pool[BITS_TO_LONGS(CONFIG_IIO_CONSUMERS_PER_TRIGGER)];
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struct mutex pool_lock;
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};
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static inline struct iio_trigger *to_iio_trigger(struct device *d)
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{
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return container_of(d, struct iio_trigger, dev);
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};
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static inline void iio_trigger_put(struct iio_trigger *trig)
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{
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module_put(trig->ops->owner);
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put_device(&trig->dev);
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};
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static inline void iio_trigger_get(struct iio_trigger *trig)
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{
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get_device(&trig->dev);
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__module_get(trig->ops->owner);
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};
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/**
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* iio_trigger_register() - register a trigger with the IIO core
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* @trig_info: trigger to be registered
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**/
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int iio_trigger_register(struct iio_trigger *trig_info);
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/**
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* iio_trigger_unregister() - unregister a trigger from the core
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* @trig_info: trigger to be unregistered
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**/
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void iio_trigger_unregister(struct iio_trigger *trig_info);
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/**
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* iio_trigger_poll() - called on a trigger occurring
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* @trig: trigger which occurred
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*
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* Typically called in relevant hardware interrupt handler.
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**/
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void iio_trigger_poll(struct iio_trigger *trig, s64 time);
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void iio_trigger_poll_chained(struct iio_trigger *trig, s64 time);
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irqreturn_t iio_trigger_generic_data_rdy_poll(int irq, void *private);
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__printf(1, 2) struct iio_trigger *iio_trigger_alloc(const char *fmt, ...);
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void iio_trigger_free(struct iio_trigger *trig);
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#endif /* _IIO_TRIGGER_H_ */
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