arch/arm/include/asm/pci.h

   1 #ifndef ASMARM_PCI_H
   2 #define ASMARM_PCI_H
   3
   4 #ifdef __KERNEL__
   5 #include <asm-generic/pci-dma-compat.h>
   6
   7 #include <mach/hardware.h> /* for PCIBIOS_MIN_* */
   8
   9 #ifdef CONFIG_PCI_HOST_ITE8152
  10 /* ITE bridge requires setting latency timer to avoid early bus access
  11    termination by PIC bus mater devices
  12 */
  13 extern void pcibios_set_master(struct pci_dev *dev);
  14 #else
  15 static inline void pcibios_set_master(struct pci_dev *dev)
  16 {
  17         /* No special bus mastering setup handling */
  18 }
  19 #endif
  20
  21 static inline void pcibios_penalize_isa_irq(int irq, int active)
  22 {
  23         /* We don't do dynamic PCI IRQ allocation */
  24 }
  25
  26 /*
  27  * The PCI address space does equal the physical memory address space.
  28  * The networking and block device layers use this boolean for bounce
  29  * buffer decisions.
  30  */
  31 #define PCI_DMA_BUS_IS_PHYS     (1)
  32
  33 /*
  34  * Whether pci_unmap_{single,page} is a nop depends upon the
  35  * configuration.
  36  */
  37 #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)       dma_addr_t ADDR_NAME;
  38 #define DECLARE_PCI_UNMAP_LEN(LEN_NAME)         __u32 LEN_NAME;
  39 #define pci_unmap_addr(PTR, ADDR_NAME)          ((PTR)->ADDR_NAME)
  40 #define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) (((PTR)->ADDR_NAME) = (VAL))
  41 #define pci_unmap_len(PTR, LEN_NAME)            ((PTR)->LEN_NAME)
  42 #define pci_unmap_len_set(PTR, LEN_NAME, VAL)   (((PTR)->LEN_NAME) = (VAL))
  43
  44 #ifdef CONFIG_PCI
  45 static inline void pci_dma_burst_advice(struct pci_dev *pdev,
  46                                         enum pci_dma_burst_strategy *strat,
  47                                         unsigned long *strategy_parameter)
  48 {
  49         *strat = PCI_DMA_BURST_INFINITY;
  50         *strategy_parameter = ~0UL;
  51 }
  52 #endif
  53
  54 #define HAVE_PCI_MMAP
  55 extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
  56                                enum pci_mmap_state mmap_state, int write_combine);
  57
  58 extern void
  59 pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
  60                          struct resource *res);
  61
  62 extern void
  63 pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
  64                         struct pci_bus_region *region);
  65
  66 /*
  67  * Dummy implementation; always return 0.
  68  */
  69 static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
  70 {
  71         return 0;
  72 }
  73
  74 #endif /* __KERNEL__ */
  75
  76 #endif