blob: 5417944d3687758bdfbb286633457258fd88a913 [file] [log] [blame]
* platform_device.h - generic, centralized driver model
* Copyright (c) 2001-2003 Patrick Mochel <>
* This file is released under the GPLv2
* See Documentation/driver-model/ for more information.
#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_simple(const char *, int id,
const struct resource *, unsigned int);
extern struct platform_device *platform_device_register_data(struct device *,
const char *, int, const void *, size_t);
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 *));
#define platform_get_drvdata(_dev) dev_get_drvdata(&(_dev)->dev)
#define platform_set_drvdata(_dev,data) dev_set_drvdata(&(_dev)->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);
/* 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;
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_ */