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 /*
  28  * Struct used for matching a device
  29  */
  30 struct of_match
  31 {
  32         char    *name;
  33         char    *type;
  34         char    *compatible;
  35         void    *data;
  36 };
  37 #define OF_ANY_MATCH            ((char *)-1L)
  38
  39 extern const struct of_match *of_match_device(
  40         const struct of_match *matches, const struct of_device *dev);
  41
  42 extern struct of_device *of_dev_get(struct of_device *dev);
  43 extern void of_dev_put(struct of_device *dev);
  44
  45 /*
  46  * An of_platform_driver driver is attached to a basic of_device on
  47  * the "platform bus" (of_platform_bus_type)
  48  */
  49 struct of_platform_driver
  50 {
  51         char                    *name;
  52         struct of_match         *match_table;
  53         struct module           *owner;
  54
  55         int     (*probe)(struct of_device* dev, const struct of_match *match);
  56         int     (*remove)(struct of_device* dev);
  57
  58         int     (*suspend)(struct of_device* dev, u32 state);
  59         int     (*resume)(struct of_device* dev);
  60         int     (*shutdown)(struct of_device* dev);
  61
  62         struct device_driver    driver;
  63 };
  64 #define to_of_platform_driver(drv) container_of(drv,struct of_platform_driver, driver)
  65
  66 extern int of_register_driver(struct of_platform_driver *drv);
  67 extern void of_unregister_driver(struct of_platform_driver *drv);
  68 extern int of_device_register(struct of_device *ofdev);
  69 extern void of_device_unregister(struct of_device *ofdev);
  70 extern struct of_device *of_platform_device_create(struct device_node *np, const char *bus_id);
  71 extern void of_release_dev(struct device *dev);
  72
  73 #endif /* __OF_DEVICE_H__ */
  74