include/linux/of_pci.h

   1 #ifndef __OF_PCI_H
   2 #define __OF_PCI_H
   3
   4 #include <linux/pci.h>
   5 #include <linux/msi.h>
   6
   7 struct pci_dev;
   8 struct of_phandle_args;
   9 struct device_node;
  10
  11 #ifdef CONFIG_OF_PCI
  12 int of_irq_parse_pci(const struct pci_dev *pdev, struct of_phandle_args *out_irq);
  13 struct device_node *of_pci_find_child_device(struct device_node *parent,
  14                                              unsigned int devfn);
  15 int of_pci_get_devfn(struct device_node *np);
  16 int of_irq_parse_and_map_pci(const struct pci_dev *dev, u8 slot, u8 pin);
  17 int of_pci_parse_bus_range(struct device_node *node, struct resource *res);
  18 int of_get_pci_domain_nr(struct device_node *node);
  19 int of_pci_get_max_link_speed(struct device_node *node);
  20 void of_pci_check_probe_only(void);
  21 int of_pci_map_rid(struct device_node *np, u32 rid,
  22                    const char *map_name, const char *map_mask_name,
  23                    struct device_node **target, u32 *id_out);
  24 #else
  25 static inline int of_irq_parse_pci(const struct pci_dev *pdev, struct of_phandle_args *out_irq)
  26 {
  27         return 0;
  28 }
  29
  30 static inline struct device_node *of_pci_find_child_device(struct device_node *parent,
  31                                              unsigned int devfn)
  32 {
  33         return NULL;
  34 }
  35
  36 static inline int of_pci_get_devfn(struct device_node *np)
  37 {
  38         return -EINVAL;
  39 }
  40
  41 static inline int
  42 of_irq_parse_and_map_pci(const struct pci_dev *dev, u8 slot, u8 pin)
  43 {
  44         return 0;
  45 }
  46
  47 static inline int
  48 of_pci_parse_bus_range(struct device_node *node, struct resource *res)
  49 {
  50         return -EINVAL;
  51 }
  52
  53 static inline int
  54 of_get_pci_domain_nr(struct device_node *node)
  55 {
  56         return -1;
  57 }
  58
  59 static inline int of_pci_map_rid(struct device_node *np, u32 rid,
  60                         const char *map_name, const char *map_mask_name,
  61                         struct device_node **target, u32 *id_out)
  62 {
  63         return -EINVAL;
  64 }
  65
  66 static inline int
  67 of_pci_get_max_link_speed(struct device_node *node)
  68 {
  69         return -EINVAL;
  70 }
  71
  72 static inline void of_pci_check_probe_only(void) { }
  73 #endif
  74
  75 #if defined(CONFIG_OF_ADDRESS)
  76 int of_pci_get_host_bridge_resources(struct device_node *dev,
  77                         unsigned char busno, unsigned char bus_max,
  78                         struct list_head *resources, resource_size_t *io_base);
  79 #else
  80 static inline int of_pci_get_host_bridge_resources(struct device_node *dev,
  81                         unsigned char busno, unsigned char bus_max,
  82                         struct list_head *resources, resource_size_t *io_base)
  83 {
  84         return -EINVAL;
  85 }
  86 #endif
  87
  88 #endif