include/asm-ppc/of_device.h

   1 #ifndef __OF_DEVICE_H__
   2 #define __OF_DEVICE_H__
   3
   4 #include <linux/device.h>
   5 #include <asm/prom.h>
   6
   7 /*
   8  * The of_platform_bus_type is a bus type used by drivers that do not
   9  * attach to a macio or similar bus but still use OF probing
  10  * mecanism
  11  */
  12 extern struct bus_type of_platform_bus_type;
  13
  14 /*
  15  * The of_device is a kind of "base class" that is a superset of
  16  * struct device for use by devices attached to an OF node and
  17  * probed using OF properties
  18  */
  19 struct of_device
  20 {
  21         struct device_node      *node;          /* OF device node */
  22         u64                     dma_mask;       /* DMA mask */
  23         struct device           dev;            /* Generic device interface */
  24 };
  25 #define to_of_device(d) container_of(d, struct of_device, dev)
  26
  27 extern const struct of_device_id *of_match_device(
  28         const struct of_device_id *matches, const struct of_device *dev);
  29
  30 extern struct of_device *of_dev_get(struct of_device *dev);
  31 extern void of_dev_put(struct of_device *dev);
  32
  33 /*
  34  * An of_platform_driver driver is attached to a basic of_device on
  35  * the "platform bus" (of_platform_bus_type)
  36  */
  37 struct of_platform_driver
  38 {
  39         char                    *name;
  40         struct of_device_id     *match_table;
  41         struct module           *owner;
  42
  43         int     (*probe)(struct of_device* dev, const struct of_device_id *match);
  44         int     (*remove)(struct of_device* dev);
  45
  46         int     (*suspend)(struct of_device* dev, pm_message_t state);
  47         int     (*resume)(struct of_device* dev);
  48         int     (*shutdown)(struct of_device* dev);
  49
  50         struct device_driver    driver;
  51 };
  52 #define to_of_platform_driver(drv) container_of(drv,struct of_platform_driver, driver)
  53
  54 extern int of_register_driver(struct of_platform_driver *drv);
  55 extern void of_unregister_driver(struct of_platform_driver *drv);
  56 extern int of_device_register(struct of_device *ofdev);
  57 extern void of_device_unregister(struct of_device *ofdev);
  58 extern struct of_device *of_platform_device_create(struct device_node *np, const char *bus_id);
  59 extern void of_release_dev(struct device *dev);
  60
  61 #endif /* __OF_DEVICE_H__ */
  62