1 files changed, 105 insertions, 0 deletions
diff --git a/include/grub/i386/pci.h b/include/grub/i386/pci.h
new file mode 100644
index 0000000..dffeb56
--- /dev/null
+++ b/include/grub/i386/pci.h
@@ -0,0 +1,105 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2008,2009  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/>.
+ */
+
+#ifndef	GRUB_CPU_PCI_H
+#define	GRUB_CPU_PCI_H	1
+
+#include <grub/types.h>
+#include <grub/i386/io.h>
+
+#define GRUB_MACHINE_PCI_IO_BASE          0
+#define GRUB_PCI_ADDR_REG	0xcf8
+#define GRUB_PCI_DATA_REG	0xcfc
+#define GRUB_PCI_NUM_BUS        256
+#define GRUB_PCI_NUM_DEVICES    32
+
+static inline grub_uint32_t
+grub_pci_read (grub_pci_address_t addr)
+{
+  grub_outl (addr, GRUB_PCI_ADDR_REG);
+  return grub_inl (GRUB_PCI_DATA_REG);
+}
+
+static inline grub_uint16_t
+grub_pci_read_word (grub_pci_address_t addr)
+{
+  grub_outl (addr & ~3, GRUB_PCI_ADDR_REG);
+  return grub_inw (GRUB_PCI_DATA_REG + (addr & 3));
+}
+
+static inline grub_uint8_t
+grub_pci_read_byte (grub_pci_address_t addr)
+{
+  grub_outl (addr & ~3, GRUB_PCI_ADDR_REG);
+  return grub_inb (GRUB_PCI_DATA_REG + (addr & 3));
+}
+
+static inline void
+grub_pci_write (grub_pci_address_t addr, grub_uint32_t data)
+{
+  grub_outl (addr, GRUB_PCI_ADDR_REG);
+  grub_outl (data, GRUB_PCI_DATA_REG);
+}
+
+static inline void
+grub_pci_write_word (grub_pci_address_t addr, grub_uint16_t data)
+{
+  grub_outl (addr & ~3, GRUB_PCI_ADDR_REG);
+  grub_outw (data, GRUB_PCI_DATA_REG + (addr & 3));
+}
+
+static inline void
+grub_pci_write_byte (grub_pci_address_t addr, grub_uint8_t data)
+{
+  grub_outl (addr & ~3, GRUB_PCI_ADDR_REG);
+  grub_outb (data, GRUB_PCI_DATA_REG + (addr & 3));
+}
+
+#ifndef GRUB_MACHINE_IEEE1275
+
+static inline volatile void *
+grub_pci_device_map_range (grub_pci_device_t dev __attribute__ ((unused)),
+			   grub_addr_t base,
+			   grub_size_t size __attribute__ ((unused)))
+{
+  return (volatile void *) base;
+}
+
+static inline void
+grub_pci_device_unmap_range (grub_pci_device_t dev __attribute__ ((unused)),
+			     volatile void *mem __attribute__ ((unused)),
+			     grub_size_t size __attribute__ ((unused)))
+{
+}
+
+#else
+
+volatile void *
+grub_pci_device_map_range (grub_pci_device_t dev,
+			   grub_addr_t base,
+			   grub_size_t size);
+
+void
+grub_pci_device_unmap_range (grub_pci_device_t dev,
+			     volatile void *mem,
+			     grub_size_t size);
+
+#endif
+
+
+#endif /* GRUB_CPU_PCI_H */