Merge pciaccess branch

util/pci.c

@@ -0,0 +1,76 @@
+/* pci.c - Generic PCI interfaces.  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2007,2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/pci.h>
+#include <grub/dl.h>
+#include <grub/util/misc.h>
+
+grub_pci_address_t
+grub_pci_make_address (grub_pci_device_t dev, int reg)
+{
+  grub_pci_address_t ret;
+  ret.dev = dev;
+  ret.pos = reg << 2;
+  return ret;
+}
+
+void
+grub_pci_iterate (grub_pci_iteratefunc_t hook)
+{
+  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)
+{
+  pci_system_init ();
+}
+
+GRUB_MOD_FINI (pci)
+{
+  pci_system_cleanup ();
+}