mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-28 15:13:55 +08:00
71d642908d
This patch converts the macros for platform_{get,set}_drvdata to
static inline functions to add typechecking.
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
204 lines
7.1 KiB
C
204 lines
7.1 KiB
C
/*
|
|
* platform_device.h - generic, centralized driver model
|
|
*
|
|
* Copyright (c) 2001-2003 Patrick Mochel <mochel@osdl.org>
|
|
*
|
|
* This file is released under the GPLv2
|
|
*
|
|
* See Documentation/driver-model/ for more information.
|
|
*/
|
|
|
|
#ifndef _PLATFORM_DEVICE_H_
|
|
#define _PLATFORM_DEVICE_H_
|
|
|
|
#include <linux/device.h>
|
|
#include <linux/mod_devicetable.h>
|
|
|
|
struct platform_device {
|
|
const char * name;
|
|
int id;
|
|
struct device dev;
|
|
u32 num_resources;
|
|
struct resource * resource;
|
|
|
|
const struct platform_device_id *id_entry;
|
|
|
|
/* arch specific additions */
|
|
struct pdev_archdata archdata;
|
|
};
|
|
|
|
#define platform_get_device_id(pdev) ((pdev)->id_entry)
|
|
|
|
#define to_platform_device(x) container_of((x), struct platform_device, dev)
|
|
|
|
extern int platform_device_register(struct platform_device *);
|
|
extern void platform_device_unregister(struct platform_device *);
|
|
|
|
extern struct bus_type platform_bus_type;
|
|
extern struct device platform_bus;
|
|
|
|
extern struct resource *platform_get_resource(struct platform_device *, unsigned int, unsigned int);
|
|
extern int platform_get_irq(struct platform_device *, unsigned int);
|
|
extern struct resource *platform_get_resource_byname(struct platform_device *, unsigned int, const char *);
|
|
extern int platform_get_irq_byname(struct platform_device *, const char *);
|
|
extern int platform_add_devices(struct platform_device **, int);
|
|
|
|
extern struct platform_device *platform_device_register_resndata(
|
|
struct device *parent, const char *name, int id,
|
|
const struct resource *res, unsigned int num,
|
|
const void *data, size_t size);
|
|
|
|
/**
|
|
* platform_device_register_simple - add a platform-level device and its resources
|
|
* @name: base name of the device we're adding
|
|
* @id: instance id
|
|
* @res: set of resources that needs to be allocated for the device
|
|
* @num: number of resources
|
|
*
|
|
* This function creates a simple platform device that requires minimal
|
|
* resource and memory management. Canned release function freeing memory
|
|
* allocated for the device allows drivers using such devices to be
|
|
* unloaded without waiting for the last reference to the device to be
|
|
* dropped.
|
|
*
|
|
* This interface is primarily intended for use with legacy drivers which
|
|
* probe hardware directly. Because such drivers create sysfs device nodes
|
|
* themselves, rather than letting system infrastructure handle such device
|
|
* enumeration tasks, they don't fully conform to the Linux driver model.
|
|
* In particular, when such drivers are built as modules, they can't be
|
|
* "hotplugged".
|
|
*
|
|
* Returns &struct platform_device pointer on success, or ERR_PTR() on error.
|
|
*/
|
|
static inline struct platform_device *platform_device_register_simple(
|
|
const char *name, int id,
|
|
const struct resource *res, unsigned int num)
|
|
{
|
|
return platform_device_register_resndata(NULL, name, id,
|
|
res, num, NULL, 0);
|
|
}
|
|
|
|
/**
|
|
* platform_device_register_data - add a platform-level device with platform-specific data
|
|
* @parent: parent device for the device we're adding
|
|
* @name: base name of the device we're adding
|
|
* @id: instance id
|
|
* @data: platform specific data for this platform device
|
|
* @size: size of platform specific data
|
|
*
|
|
* This function creates a simple platform device that requires minimal
|
|
* resource and memory management. Canned release function freeing memory
|
|
* allocated for the device allows drivers using such devices to be
|
|
* unloaded without waiting for the last reference to the device to be
|
|
* dropped.
|
|
*
|
|
* Returns &struct platform_device pointer on success, or ERR_PTR() on error.
|
|
*/
|
|
static inline struct platform_device *platform_device_register_data(
|
|
struct device *parent, const char *name, int id,
|
|
const void *data, size_t size)
|
|
{
|
|
return platform_device_register_resndata(parent, name, id,
|
|
NULL, 0, data, size);
|
|
}
|
|
|
|
extern struct platform_device *platform_device_alloc(const char *name, int id);
|
|
extern int platform_device_add_resources(struct platform_device *pdev,
|
|
const struct resource *res,
|
|
unsigned int num);
|
|
extern int platform_device_add_data(struct platform_device *pdev, const void *data, size_t size);
|
|
extern int platform_device_add(struct platform_device *pdev);
|
|
extern void platform_device_del(struct platform_device *pdev);
|
|
extern void platform_device_put(struct platform_device *pdev);
|
|
|
|
struct platform_driver {
|
|
int (*probe)(struct platform_device *);
|
|
int (*remove)(struct platform_device *);
|
|
void (*shutdown)(struct platform_device *);
|
|
int (*suspend)(struct platform_device *, pm_message_t state);
|
|
int (*resume)(struct platform_device *);
|
|
struct device_driver driver;
|
|
const struct platform_device_id *id_table;
|
|
};
|
|
|
|
extern int platform_driver_register(struct platform_driver *);
|
|
extern void platform_driver_unregister(struct platform_driver *);
|
|
|
|
/* non-hotpluggable platform devices may use this so that probe() and
|
|
* its support may live in __init sections, conserving runtime memory.
|
|
*/
|
|
extern int platform_driver_probe(struct platform_driver *driver,
|
|
int (*probe)(struct platform_device *));
|
|
|
|
static inline void *platform_get_drvdata(const struct platform_device *pdev)
|
|
{
|
|
return dev_get_drvdata(&pdev->dev);
|
|
}
|
|
|
|
static inline void platform_set_drvdata(struct platform_device *pdev, void *data)
|
|
{
|
|
dev_set_drvdata(&pdev->dev, data);
|
|
}
|
|
|
|
extern struct platform_device *platform_create_bundle(struct platform_driver *driver,
|
|
int (*probe)(struct platform_device *),
|
|
struct resource *res, unsigned int n_res,
|
|
const void *data, size_t size);
|
|
|
|
extern const struct dev_pm_ops * platform_bus_get_pm_ops(void);
|
|
extern void platform_bus_set_pm_ops(const struct dev_pm_ops *pm);
|
|
|
|
/* early platform driver interface */
|
|
struct early_platform_driver {
|
|
const char *class_str;
|
|
struct platform_driver *pdrv;
|
|
struct list_head list;
|
|
int requested_id;
|
|
char *buffer;
|
|
int bufsize;
|
|
};
|
|
|
|
#define EARLY_PLATFORM_ID_UNSET -2
|
|
#define EARLY_PLATFORM_ID_ERROR -3
|
|
|
|
extern int early_platform_driver_register(struct early_platform_driver *epdrv,
|
|
char *buf);
|
|
extern void early_platform_add_devices(struct platform_device **devs, int num);
|
|
|
|
static inline int is_early_platform_device(struct platform_device *pdev)
|
|
{
|
|
return !pdev->dev.driver;
|
|
}
|
|
|
|
extern void early_platform_driver_register_all(char *class_str);
|
|
extern int early_platform_driver_probe(char *class_str,
|
|
int nr_probe, int user_only);
|
|
extern void early_platform_cleanup(void);
|
|
|
|
#define early_platform_init(class_string, platdrv) \
|
|
early_platform_init_buffer(class_string, platdrv, NULL, 0)
|
|
|
|
#ifndef MODULE
|
|
#define early_platform_init_buffer(class_string, platdrv, buf, bufsiz) \
|
|
static __initdata struct early_platform_driver early_driver = { \
|
|
.class_str = class_string, \
|
|
.buffer = buf, \
|
|
.bufsize = bufsiz, \
|
|
.pdrv = platdrv, \
|
|
.requested_id = EARLY_PLATFORM_ID_UNSET, \
|
|
}; \
|
|
static int __init early_platform_driver_setup_func(char *buffer) \
|
|
{ \
|
|
return early_platform_driver_register(&early_driver, buffer); \
|
|
} \
|
|
early_param(class_string, early_platform_driver_setup_func)
|
|
#else /* MODULE */
|
|
#define early_platform_init_buffer(class_string, platdrv, buf, bufsiz) \
|
|
static inline char *early_platform_driver_setup_func(void) \
|
|
{ \
|
|
return bufsiz ? buf : NULL; \
|
|
}
|
|
#endif /* MODULE */
|
|
|
|
#endif /* _PLATFORM_DEVICE_H_ */
|