linux/include/linux/of_address.h
<<
>>
Prefs
   1#ifndef __OF_ADDRESS_H
   2#define __OF_ADDRESS_H
   3#include <linux/ioport.h>
   4#include <linux/errno.h>
   5#include <linux/of.h>
   6
   7#ifdef CONFIG_OF_ADDRESS
   8extern u64 of_translate_address(struct device_node *np, const __be32 *addr);
   9extern int of_address_to_resource(struct device_node *dev, int index,
  10                                  struct resource *r);
  11extern struct device_node *of_find_matching_node_by_address(
  12                                        struct device_node *from,
  13                                        const struct of_device_id *matches,
  14                                        u64 base_address);
  15extern void __iomem *of_iomap(struct device_node *device, int index);
  16
  17/* Extract an address from a device, returns the region size and
  18 * the address space flags too. The PCI version uses a BAR number
  19 * instead of an absolute index
  20 */
  21extern const u32 *of_get_address(struct device_node *dev, int index,
  22                           u64 *size, unsigned int *flags);
  23
  24#ifndef pci_address_to_pio
  25static inline unsigned long pci_address_to_pio(phys_addr_t addr) { return -1; }
  26#define pci_address_to_pio pci_address_to_pio
  27#endif
  28
  29#else /* CONFIG_OF_ADDRESS */
  30static inline int of_address_to_resource(struct device_node *dev, int index,
  31                                         struct resource *r)
  32{
  33        return -EINVAL;
  34}
  35static inline struct device_node *of_find_matching_node_by_address(
  36                                        struct device_node *from,
  37                                        const struct of_device_id *matches,
  38                                        u64 base_address)
  39{
  40        return NULL;
  41}
  42static inline void __iomem *of_iomap(struct device_node *device, int index)
  43{
  44        return NULL;
  45}
  46static inline const u32 *of_get_address(struct device_node *dev, int index,
  47                                        u64 *size, unsigned int *flags)
  48{
  49        return NULL;
  50}
  51#endif /* CONFIG_OF_ADDRESS */
  52
  53
  54#if defined(CONFIG_OF_ADDRESS) && defined(CONFIG_PCI)
  55extern const __be32 *of_get_pci_address(struct device_node *dev, int bar_no,
  56                               u64 *size, unsigned int *flags);
  57extern int of_pci_address_to_resource(struct device_node *dev, int bar,
  58                                      struct resource *r);
  59#else /* CONFIG_OF_ADDRESS && CONFIG_PCI */
  60static inline int of_pci_address_to_resource(struct device_node *dev, int bar,
  61                                             struct resource *r)
  62{
  63        return -ENOSYS;
  64}
  65
  66static inline const __be32 *of_get_pci_address(struct device_node *dev,
  67                int bar_no, u64 *size, unsigned int *flags)
  68{
  69        return NULL;
  70}
  71#endif /* CONFIG_OF_ADDRESS && CONFIG_PCI */
  72
  73#endif /* __OF_ADDRESS_H */
  74
  75
lxr.linux.no kindly hosted by Redpill Linpro AS, provider of Linux consulting and operations services since 1995.