PAL.C.T MINI SHELL
/*
* 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>
#define PLATFORM_DEVID_NONE (-1)
#define PLATFORM_DEVID_AUTO (-2)
struct platform_device {
const char * name;
int id;
struct device dev;
u32 num_resources;
struct resource * resource;
struct platform_device_id *id_entry;
/* arch specific additions */
struct pdev_archdata archdata;
#ifndef __GENKSYMS__
bool id_auto;
#endif
};
#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,
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, 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;
struct platform_device_id *id_table;
};
extern int platform_driver_register(struct platform_driver *);
extern void platform_driver_unregister(struct platform_driver *);
struct platform_device_info {
struct device *parent;
const char *name;
int id;
const struct resource *res;
unsigned int num_res;
const void *data;
size_t size_data;
u64 dma_mask;
};
extern struct platform_device *platform_device_register_full(
struct platform_device_info *pdevinfo);
/**
* platform_device_register_resndata - add a platform-level device with
* resources and platform-specific data
*
* @parent: parent device for the device we're adding
* @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
* @data: platform specific data for this platform device
* @size: size of platform specific data
*
* Returns &struct platform_device pointer on success, or ERR_PTR() on error.
*/
static inline 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) {
struct platform_device_info pdevinfo = {
.parent = parent,
.name = name,
.id = id,
.res = res,
.num_res = num,
.data = data,
.size_data = size,
.dma_mask = 0,
};
return platform_device_register_full(&pdevinfo);
}
/* 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))
/* module_platform_driver() - Helper macro for drivers that don't do
* anything special in module init/exit. This eliminates a lot of
* boilerplate. Each module may only use this macro once, and
* calling it replaces module_init() and module_exit()
*/
#define module_platform_driver(__platform_driver) \
static int __init __platform_driver##_init(void) \
{ \
return platform_driver_register(&(__platform_driver)); \
} \
module_init(__platform_driver##_init); \
static void __exit __platform_driver##_exit(void) \
{ \
platform_driver_unregister(&(__platform_driver)); \
} \
module_exit(__platform_driver##_exit);
/* early platform driver interface */
struct early_platform_driver {
const char *class_str;
struct platform_driver *pdrv;
struct list_head list;
int requested_id;
};
#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);
#ifndef MODULE
#define early_platform_init(class_string, platform_driver) \
static __initdata struct early_platform_driver early_driver = { \
.class_str = class_string, \
.pdrv = platform_driver, \
.requested_id = EARLY_PLATFORM_ID_UNSET, \
}; \
static int __init early_platform_driver_setup_func(char *buf) \
{ \
return early_platform_driver_register(&early_driver, buf); \
} \
early_param(class_string, early_platform_driver_setup_func)
#else /* MODULE */
#define early_platform_init(class_string, platform_driver)
#endif /* MODULE */
#endif /* _PLATFORM_DEVICE_H_ */
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