forked from KolibriOS/kolibrios
128 lines
2.9 KiB
C
128 lines
2.9 KiB
C
/*
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* device.h - generic, centralized driver model
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*
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* Copyright (c) 2001-2003 Patrick Mochel <mochel@osdl.org>
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* Copyright (c) 2004-2009 Greg Kroah-Hartman <gregkh@suse.de>
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* Copyright (c) 2008-2009 Novell Inc.
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*
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* This file is released under the GPLv2
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*
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* See Documentation/driver-model/ for more information.
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*/
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#ifndef _DEVICE_H_
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#define _DEVICE_H_
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#include <linux/ioport.h>
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#include <linux/kobject.h>
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#include <linux/list.h>
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#include <linux/compiler.h>
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#include <linux/types.h>
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#include <linux/mutex.h>
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#include <linux/pm.h>
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#include <linux/atomic.h>
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#include <linux/gfp.h>
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struct device;
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enum probe_type {
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PROBE_DEFAULT_STRATEGY,
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PROBE_PREFER_ASYNCHRONOUS,
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PROBE_FORCE_SYNCHRONOUS,
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};
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struct device_driver {
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const char *name;
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const char *mod_name; /* used for built-in modules */
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bool suppress_bind_attrs; /* disables bind/unbind via sysfs */
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enum probe_type probe_type;
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};
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struct device {
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struct device *parent;
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struct kobject kobj;
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const char *init_name; /* initial name of the device */
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struct device_driver *driver; /* which driver has allocated this
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device */
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void *platform_data; /* Platform specific data, device
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core doesn't touch it */
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void *driver_data; /* Driver data, set and get with
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dev_set/get_drvdata */
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#ifdef CONFIG_GENERIC_MSI_IRQ_DOMAIN
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struct irq_domain *msi_domain;
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#endif
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#ifdef CONFIG_PINCTRL
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struct dev_pin_info *pins;
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#endif
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#ifdef CONFIG_GENERIC_MSI_IRQ
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struct list_head msi_list;
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#endif
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#ifdef CONFIG_NUMA
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int numa_node; /* NUMA node this device is close to */
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#endif
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u64 *dma_mask; /* dma mask (if dma'able device) */
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u64 coherent_dma_mask;/* Like dma_mask, but for
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alloc_coherent mappings as
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not all hardware supports
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64 bit addresses for consistent
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allocations such descriptors. */
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unsigned long dma_pfn_offset;
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#ifdef CONFIG_DMA_CMA
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struct cma *cma_area; /* contiguous memory area for dma
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allocations */
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#endif
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};
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static inline struct device *kobj_to_dev(struct kobject *kobj)
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{
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return container_of(kobj, struct device, kobj);
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}
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static inline const char *dev_name(const struct device *dev)
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{
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/* Use the init name until the kobject becomes available */
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if (dev->init_name)
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return dev->init_name;
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return kobject_name(&dev->kobj);
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}
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extern __printf(2, 3)
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int dev_set_name(struct device *dev, const char *name, ...);
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#ifdef CONFIG_NUMA
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static inline int dev_to_node(struct device *dev)
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{
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return dev->numa_node;
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}
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static inline void set_dev_node(struct device *dev, int node)
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{
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dev->numa_node = node;
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}
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#else
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static inline int dev_to_node(struct device *dev)
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{
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return -1;
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}
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static inline void set_dev_node(struct device *dev, int node)
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{
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}
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#endif
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static inline void *dev_get_drvdata(const struct device *dev)
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{
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return dev->driver_data;
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}
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static inline void dev_set_drvdata(struct device *dev, void *data)
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{
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dev->driver_data = data;
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}
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#endif /* _DEVICE_H_ */
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