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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 16:29:51 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 16:29:51 +0000
commit6e7a315eb67cb6c113cf37e1d66c4f11a51a2b3e (patch)
tree32451fa3cdd9321fb2591fada9891b2cb70a9cd1 /include/grub/i386/pci.h
parentInitial commit. (diff)
downloadgrub2-upstream.tar.xz
grub2-upstream.zip
Adding upstream version 2.06.upstream/2.06upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'include/grub/i386/pci.h')
-rw-r--r--include/grub/i386/pci.h105
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 */