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-rw-r--r--grub-core/bus/emu/pci.c78
1 files changed, 78 insertions, 0 deletions
diff --git a/grub-core/bus/emu/pci.c b/grub-core/bus/emu/pci.c
new file mode 100644
index 0000000..267f262
--- /dev/null
+++ b/grub-core/bus/emu/pci.c
@@ -0,0 +1,78 @@
+/* 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/emu/misc.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;
+ return ret;
+}
+
+void
+grub_pci_iterate (grub_pci_iteratefunc_t hook, void *hook_data)
+{
+ 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), hook_data);
+ 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%llx failed (error %d)",
+ (unsigned long long) 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 (emupci)
+{
+ pci_system_init ();
+}
+
+GRUB_MOD_FINI (emupci)
+{
+ pci_system_cleanup ();
+}