kolibrios/drivers/devman/pci/access.c
Sergey Semyonov (Serge) 7f37261a3b ddk: update
devman: scan pci bus. Complete.

git-svn-id: svn://kolibrios.org@1631 a494cfbc-eb01-0410-851d-a64ba20cac60
2010-09-29 11:59:24 +00:00

90 lines
2.2 KiB
C

#include <ddk.h>
#include <linux/errno.h>
#include <mutex.h>
#include <pci.h>
#include <syscall.h>
int pci_read_config_byte(struct pci_dev *dev, int where, u8 *val)
{
*val = PciRead8(dev->busnr, dev->devfn, where);
return 0;
}
int pci_read_config_word(struct pci_dev *dev, int where, u16 *val)
{
if ( where & 1)
return PCIBIOS_BAD_REGISTER_NUMBER;
*val = PciRead16(dev->busnr, dev->devfn, where);
return 0;
}
int pci_read_config_dword(struct pci_dev *dev, int where, u32 *val)
{
if ( where & 3)
return PCIBIOS_BAD_REGISTER_NUMBER;
*val = PciRead32(dev->busnr, dev->devfn, where);
return 0;
}
int pci_write_config_byte(struct pci_dev *dev, int where, u8 val)
{
PciWrite8(dev->busnr, dev->devfn, where, val);
return 0;
};
int pci_write_config_word(struct pci_dev *dev, int where, u16 val)
{
if ( where & 1)
return PCIBIOS_BAD_REGISTER_NUMBER;
PciWrite16(dev->busnr, dev->devfn, where, val);
return 0;
}
int pci_write_config_dword(struct pci_dev *dev, int where,
u32 val)
{
if ( where & 3)
return PCIBIOS_BAD_REGISTER_NUMBER;
PciWrite32(dev->busnr, dev->devfn, where, val);
return 0;
}
int pci_bus_read_config_byte (struct pci_bus *bus, u32 devfn,
int pos, u8 *value)
{
// raw_spin_lock_irqsave(&pci_lock, flags);
*value = PciRead8(bus->number, devfn, pos);
// raw_spin_unlock_irqrestore(&pci_lock, flags);
return 0;
}
int pci_bus_read_config_word (struct pci_bus *bus, u32 devfn,
int pos, u16 *value)
{
if ( pos & 1)
return PCIBIOS_BAD_REGISTER_NUMBER;
// raw_spin_lock_irqsave(&pci_lock, flags);
*value = PciRead16(bus->number, devfn, pos);
// raw_spin_unlock_irqrestore(&pci_lock, flags);
return 0;
}
int pci_bus_read_config_dword (struct pci_bus *bus, u32 devfn,
int pos, u16 *value)
{
if ( pos & 3)
return PCIBIOS_BAD_REGISTER_NUMBER;
// raw_spin_lock_irqsave(&pci_lock, flags);
*value = PciRead32(bus->number, devfn, pos);
// raw_spin_unlock_irqrestore(&pci_lock, flags);
return 0;
}