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/* This header only makes send when included in a 2.0 compile */
#ifndef _PCI_COMPAT_H_
#define _PCI_COMPAT_H_
#ifdef __KERNEL__
#include <linux/bios32.h> /* pcibios_* */
#include <linux/pci.h> /* pcibios_* */
#include <linux/malloc.h> /* kmalloc */
/* fake the new pci interface based on the old one: encapsulate bus/devfn */
struct pci_fake_dev {
u8 bus;
u8 devfn;
int index;
};
#define pci_dev pci_fake_dev /* the other pci_dev is unused by 2.0 drivers */
extern inline struct pci_dev *pci_find_device(unsigned int vendorid,
unsigned int devid,
struct pci_dev *from)
{
struct pci_dev *pptr = kmalloc(sizeof(*pptr), GFP_KERNEL);
int index = 0;
int ret;
if (!pptr) return NULL;
if (from) index = pptr->index + 1;
ret = pcibios_find_device(vendorid, devid, index,
&pptr->bus, &pptr->devfn);
if (ret) { kfree(pptr); return NULL; }
return pptr;
}
extern inline struct pci_dev *pci_find_class(unsigned int class,
struct pci_dev *from)
{
return NULL; /* FIXME */
}
extern inline void pci_release_device(struct pci_dev *dev)
{
kfree(dev);
}
/* struct pci_dev *pci_find_slot (unsigned int bus, unsigned int devfn); */
#define pci_present pcibios_present
extern inline int
pci_read_config_byte(struct pci_dev *dev, u8 where, u8 *val)
{
return pcibios_read_config_byte(dev->bus, dev->devfn, where, val);
}
extern inline int
pci_read_config_word(struct pci_dev *dev, u8 where, u16 *val)
{
return pcibios_read_config_word(dev->bus, dev->devfn, where, val);
}
extern inline int
pci_read_config_dword(struct pci_dev *dev, u8 where, u32 *val)
{
return pcibios_read_config_dword(dev->bus, dev->devfn, where, val);
}
extern inline int
pci_write_config_byte(struct pci_dev *dev, u8 where, u8 val)
{
return pcibios_write_config_byte(dev->bus, dev->devfn, where, val);
}
extern inline int
pci_write_config_word(struct pci_dev *dev, u8 where, u16 val)
{
return pcibios_write_config_word(dev->bus, dev->devfn, where, val);
}
extern inline int
pci_write_config_dword(struct pci_dev *dev, u8 where, u32 val)
{
return pcibios_write_config_dword(dev->bus, dev->devfn, where, val);
}
extern inline void pci_set_master(struct pci_dev *dev)
{
u16 cmd;
pcibios_read_config_word(dev->bus, dev->devfn, PCI_COMMAND, &cmd);
cmd |= PCI_COMMAND_MASTER;
pcibios_write_config_word(dev->bus, dev->devfn, PCI_COMMAND, cmd);
}
#endif /* __KERNEL__ */
#endif /* _PCI_COMPAT_H_ */
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