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#ifndef __ASM_SH_PCI_H
#define __ASM_SH_PCI_H
#ifdef __KERNEL__
#include <linux/dma-mapping.h>
/* Can be used to override the logic in pci_scan_bus for skipping
already-configured bus numbers - to be used for buggy BIOSes
or architectures with incomplete PCI setup by the loader */
#define pcibios_assign_all_busses() 1
#define pcibios_scan_all_fns(a, b) 0
/*
* A board can define one or more PCI channels that represent built-in (or
* external) PCI controllers.
*/
struct pci_channel {
int (*init)(struct pci_channel *chan);
struct pci_ops *pci_ops;
struct resource *io_resource;
struct resource *mem_resource;
int first_devfn;
int last_devfn;
int enabled;
unsigned long reg_base;
unsigned long io_base;
};
/*
* Each board initializes this array and terminates it with a NULL entry.
*/
extern struct pci_channel board_pci_channels[];
/* ugly as hell, but makes drivers/pci/setup-res.c compile and work */
#define __PCI_CHAN(bus) ((struct pci_channel *)bus->sysdata)
#define PCIBIOS_MIN_IO __PCI_CHAN(bus)->io_resource->start
#define PCIBIOS_MIN_MEM __PCI_CHAN(bus)->mem_resource->start
struct pci_dev;
extern void pcibios_set_master(struct pci_dev *dev);
static inline void pcibios_penalize_isa_irq(int irq, int active)
{
/* We don't do dynamic PCI IRQ allocation */
}
/* Dynamic DMA mapping stuff.
* SuperH has everything mapped statically like x86.
*/
/* The PCI address space does equal the physical memory
* address space. The networking and block device layers use
* this boolean for bounce buffer decisions.
*/
#define PCI_DMA_BUS_IS_PHYS (1)
#include <linux/types.h>
#include <linux/slab.h>
#include <asm/scatterlist.h>
#include <linux/string.h>
#include <asm/io.h>
/* pci_unmap_{single,page} being a nop depends upon the
* configuration.
*/
#ifdef CONFIG_SH_PCIDMA_NONCOHERENT
#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) \
dma_addr_t ADDR_NAME;
#define DECLARE_PCI_UNMAP_LEN(LEN_NAME) \
__u32 LEN_NAME;
#define pci_unmap_addr(PTR, ADDR_NAME) \
((PTR)->ADDR_NAME)
#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) \
(((PTR)->ADDR_NAME) = (VAL))
#define pci_unmap_len(PTR, LEN_NAME) \
((PTR)->LEN_NAME)
#define pci_unmap_len_set(PTR, LEN_NAME, VAL) \
(((PTR)->LEN_NAME) = (VAL))
#else
#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)
#define DECLARE_PCI_UNMAP_LEN(LEN_NAME)
#define pci_unmap_addr(PTR, ADDR_NAME) (0)
#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) do { } while (0)
#define pci_unmap_len(PTR, LEN_NAME) (0)
#define pci_unmap_len_set(PTR, LEN_NAME, VAL) do { } while (0)
#endif
#ifdef CONFIG_PCI
static inline void pci_dma_burst_advice(struct pci_dev *pdev,
enum pci_dma_burst_strategy *strat,
unsigned long *strategy_parameter)
{
*strat = PCI_DMA_BURST_INFINITY;
*strategy_parameter = ~0UL;
}
static inline int __is_pci_memory(unsigned long phys_addr, unsigned long size)
{
struct pci_channel *p;
struct resource *res;
for (p = board_pci_channels; p->init; p++) {
res = p->mem_resource;
if (p->enabled && (phys_addr >= res->start) &&
(phys_addr + size) <= (res->end + 1))
return 1;
}
return 0;
}
static inline void __iomem *__get_pci_io_base(unsigned long port,
unsigned long size)
{
struct pci_channel *p;
struct resource *res;
for (p = board_pci_channels; p->init; p++) {
res = p->io_resource;
if (p->enabled && (port >= res->start) &&
(port + size) <= (res->end + 1))
return (void __iomem *)(p->io_base + port);
}
return NULL;
}
#else
static inline int __is_pci_memory(unsigned long phys_addr, unsigned long size)
{
return 0;
}
static inline void __iomem *__get_pci_io_base(unsigned long port,
unsigned long size)
{
return NULL;
}
#endif
/* Board-specific fixup routines. */
void pcibios_fixup(void);
int pcibios_init_platform(void);
int pcibios_map_platform_irq(struct pci_dev *dev, u8 slot, u8 pin);
#ifdef CONFIG_PCI_AUTO
int pciauto_assign_resources(int busno, struct pci_channel *hose);
#endif
extern void pcibios_resource_to_bus(struct pci_dev *dev,
struct pci_bus_region *region, struct resource *res);
extern void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
struct pci_bus_region *region);
static inline struct resource *
pcibios_select_root(struct pci_dev *pdev, struct resource *res)
{
struct resource *root = NULL;
if (res->flags & IORESOURCE_IO)
root = &ioport_resource;
if (res->flags & IORESOURCE_MEM)
root = &iomem_resource;
return root;
}
/* Chances are this interrupt is wired PC-style ... */
static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
{
return channel ? 15 : 14;
}
/* generic DMA-mapping stuff */
#include <asm-generic/pci-dma-compat.h>
#endif /* __KERNEL__ */
#endif /* __ASM_SH_PCI_H */
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