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pciaccess

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This commit is contained in:
phcoder 2009-10-14 18:17:18 +02:00
parent 325c8258e7
commit 459fed4b98
6 changed files with 78 additions and 23 deletions
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42
util/pci.c
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@ -19,8 +19,7 @@
#include <grub/pci.h>
#include <grub/dl.h>
struct pci_access *acc = 0;
#include <grub/util/misc.h>
grub_pci_address_t
grub_pci_make_address (grub_pci_device_t dev, int reg)
@ -34,19 +33,44 @@ grub_pci_make_address (grub_pci_device_t dev, int reg)
void
grub_pci_iterate (grub_pci_iteratefunc_t hook)
{
grub_pci_device_t cur;
for (cur = acc->devices; cur; cur = cur->next)
hook (cur, cur->vendor_id|(cur->device_id << 16));
struct pci_device_iterator *iter;
struct pci_slot_match slot;
struct pci_device *dev;
slot.domain = PCI_MATCH_ANY;
slot.bus = PCI_MATCH_ANY;
slot.dev = PCI_MATCH_ANY;
slot.func = PCI_MATCH_ANY;
iter = pci_slot_match_iterator_create (&slot);
while ((dev = pci_device_next (iter)))
hook (dev, dev->vendor_id | (dev->device_id << 16));
pci_iterator_destroy (iter);
}
void *
grub_pci_device_map_range (grub_pci_device_t dev, grub_addr_t base,
grub_size_t size)
{
void *addr;
int err;
err = pci_device_map_range(dev, base, size, PCI_DEV_MAP_FLAG_WRITABLE, &addr);
if (err)
grub_util_error ("mapping 0x%x failed (error %d)\n", base, err);
return addr;
}
void
grub_pci_device_unmap_range (grub_pci_device_t dev, void *mem,
grub_size_t size)
{
pci_device_unmap_range (dev, mem, size);
}
GRUB_MOD_INIT (pci)
{
acc = pci_alloc ();
pci_init (acc);
pci_scan_bus (acc);
pci_system_init ();
}
GRUB_MOD_FINI (pci)
{
pci_cleanup (acc);
pci_system_cleanup ();
}