Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=337496eb73ec970fe008095fdb2b2af60a2a7fa3
Commit: 337496eb73ec970fe008095fdb2b2af60a2a7fa3
Parent: 449f2ab946b5ffbc357d815e8e3cce8def642984
Author: H. Peter Anvin <[EMAIL PROTECTED]>
AuthorDate: Wed Jul 11 12:18:51 2007 -0700
Committer: Linus Torvalds <[EMAIL PROTECTED]>
CommitDate: Thu Jul 12 10:55:55 2007 -0700
Voyager support for the new x86 setup code
Voyager support for the new x86 setup code. This implements the same
functionality as the assembly version.
Signed-off-by: H. Peter Anvin <[EMAIL PROTECTED]>
Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
---
arch/i386/boot/voyager.c | 46 ++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 46 insertions(+), 0 deletions(-)
diff --git a/arch/i386/boot/voyager.c b/arch/i386/boot/voyager.c
new file mode 100644
index 0000000..9221614
--- /dev/null
+++ b/arch/i386/boot/voyager.c
@@ -0,0 +1,46 @@
+/* -*- linux-c -*- ------------------------------------------------------- *
+ *
+ * Copyright (C) 1991, 1992 Linus Torvalds
+ * Copyright 2007 rPath, Inc. - All Rights Reserved
+ *
+ * This file is part of the Linux kernel, and is made available under
+ * the terms of the GNU General Public License version 2.
+ *
+ * ----------------------------------------------------------------------- */
+
+/*
+ * arch/i386/boot/voyager.c
+ *
+ * Get the Voyager config information
+ */
+
+#include "boot.h"
+
+#ifdef CONFIG_X86_VOYAGER
+
+int query_voyager(void)
+{
+ u8 err;
+ u16 es, di;
+ /* Abuse the apm_bios_info area for this */
+ u8 *data_ptr = (u8 *)&boot_params.apm_bios_info;
+
+ data_ptr[0] = 0xff; /* Flag on config not found(?) */
+
+ asm("pushw %%es ; "
+ "int $0x15 ; "
+ "setc %0 ; "
+ "movw %%es, %1 ; "
+ "popw %%es"
+ : "=qm" (err), "=rm" (es), "=D" (di)
+ : "a" (0xffc0));
+
+ if (err)
+ return -1; /* Not Voyager */
+
+ set_fs(es);
+ copy_from_fs(data_ptr, di, 7); /* Table is 7 bytes apparently */
+ return 0;
+}
+
+#endif /* CONFIG_X86_VOYAGER */
-
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