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#include <stdio.h>
#include <pci/pci.h>
#include "pci.h"
#define PCITAG struct pci_filter *
#define DEBUG_PCI 1
struct pci_access *pacc;
struct pci_dev *dev;
struct pci_filter ltag;
int pciNumBuses = 0;
int pciInit(void)
{
pacc = pci_alloc();
pci_init(pacc);
pci_scan_bus(pacc);
for (dev = pacc->devices; dev; dev = dev->next) {
pci_fill_info(dev, PCI_FILL_IDENT | PCI_FILL_BASES);
}
return 0;
}
int pciExit(void)
{
pci_cleanup(pacc);
return 0;
}
PCITAG findPci(unsigned short bx)
{
PCITAG tag = <ag;
int bus = (bx >> 8) & 0xFF;
int slot = (bx >> 3) & 0x1F;
int func = bx & 0x7;
tag->bus = bus;
tag->slot = slot;
tag->func = func;
if (pci_get_dev(pacc, bus, slot, func))
return tag;
return NULL;
}
u32 pciSlotBX(PCITAG tag)
{
return (tag->bus << 8) | (tag->slot << 3) | (tag->func);
}
u8 pciReadByte(PCITAG tag, u32 idx)
{
struct pci_dev *d;
if ((d = pci_get_dev(pacc, tag->bus, tag->slot, tag->func)))
return pci_read_byte(d, idx);
#ifdef DEBUG_PCI
printf("PCI: device not found while read byte (%x:%x.%x)\n",
tag->bus, tag->slot, tag->func);
#endif
return 0;
}
u16 pciReadWord(PCITAG tag, u32 idx)
{
struct pci_dev *d;
if ((d = pci_get_dev(pacc, tag->bus, tag->slot, tag->func)))
return pci_read_word(d, idx);
#ifdef DEBUG_PCI
printf("PCI: device not found while read word (%x:%x.%x)\n",
tag->bus, tag->slot, tag->func);
#endif
return 0;
}
u32 pciReadLong(PCITAG tag, u32 idx)
{
struct pci_dev *d;
if ((d = pci_get_dev(pacc, tag->bus, tag->slot, tag->func)))
return pci_read_long(d, idx);
#ifdef DEBUG_PCI
printf("PCI: device not found while read long (%x:%x.%x)\n",
tag->bus, tag->slot, tag->func);
#endif
return 0;
}
void pciWriteLong(PCITAG tag, u32 idx, u32 data)
{
struct pci_dev *d;
if ((d = pci_get_dev(pacc, tag->bus, tag->slot, tag->func)))
pci_write_long(d, idx, data);
#ifdef DEBUG_PCI
else
printf("PCI: device not found while write long (%x:%x.%x)\n",
tag->bus, tag->slot, tag->func);
#endif
}
void pciWriteWord(PCITAG tag, u32 idx, u16 data)
{
struct pci_dev *d;
if ((d = pci_get_dev(pacc, tag->bus, tag->slot, tag->func)))
pci_write_word(d, idx, data);
#ifdef DEBUG_PCI
else
printf("PCI: device not found while write word (%x:%x.%x)\n",
tag->bus, tag->slot, tag->func);
#endif
}
void pciWriteByte(PCITAG tag, u32 idx, u8 data)
{
struct pci_dev *d;
if ((d = pci_get_dev(pacc, tag->bus, tag->slot, tag->func)))
pci_write_long(d, idx, data);
#ifdef DEBUG_PCI
else
printf("PCI: device not found while write long (%x:%x.%x)\n",
tag->bus, tag->slot, tag->func);
#endif
}
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