71 lines
1.3 KiB
C
71 lines
1.3 KiB
C
#ifndef _GPXE_DEVICE_H
|
|
#define _GPXE_DEVICE_H
|
|
|
|
/**
|
|
* @file
|
|
*
|
|
* Device model
|
|
*
|
|
*/
|
|
|
|
#include <gpxe/list.h>
|
|
#include <gpxe/tables.h>
|
|
|
|
/** A hardware device */
|
|
struct device {
|
|
/** Devices on the same bus */
|
|
struct list_head siblings;
|
|
/** Devices attached to this device */
|
|
struct list_head children;
|
|
/** Bus device */
|
|
struct device *parent;
|
|
};
|
|
|
|
/**
|
|
* A root device
|
|
*
|
|
* Root devices are system buses such as PCI, EISA, etc.
|
|
*
|
|
*/
|
|
struct root_device {
|
|
/** Name */
|
|
const char *name;
|
|
/** Device chain
|
|
*
|
|
* A root device has a NULL parent field.
|
|
*/
|
|
struct device dev;
|
|
/** Root device driver */
|
|
struct root_driver *driver;
|
|
};
|
|
|
|
/** A root device driver */
|
|
struct root_driver {
|
|
/**
|
|
* Add root device
|
|
*
|
|
* @v rootdev Root device
|
|
* @ret rc Return status code
|
|
*
|
|
* Called from probe_devices() for all root devices in the build.
|
|
*/
|
|
int ( * probe ) ( struct root_device *rootdev );
|
|
/**
|
|
* Remove root device
|
|
*
|
|
* @v rootdev Root device
|
|
*
|
|
* Called from remove_device() for all successfully-probed
|
|
* root devices.
|
|
*/
|
|
void ( * remove ) ( struct root_device *rootdev );
|
|
};
|
|
|
|
/** Declare a root device */
|
|
#define __root_device __table ( root_devices, 01 )
|
|
|
|
extern int probe_devices ( void );
|
|
extern void remove_devices ( void );
|
|
|
|
#endif /* _GPXE_DEVICE_H */
|