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authorStefan Reinauer <reinauer@chromium.org>2012-11-30 12:34:04 -0800
committerRonald G. Minnich <rminnich@gmail.com>2012-11-30 23:59:58 +0100
commit8d7115560d469f901d7d8ccb242d0b437e7394aa (patch)
tree0f1b4bd63c48a233c49d5a9ca15f08a1675d1ff4 /src/device/oprom/yabel/pmm.h
parent4b6be985aae8bff84ae442e7be7669e93694fa1e (diff)
Rename devices -> device
to match src/include/device Change-Id: I5d0e5b4361c34881a3b81347aac48738cb5b9af0 Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/1960 Tested-by: build bot (Jenkins) Reviewed-by: David Hendricks <dhendrix@chromium.org>
Diffstat (limited to 'src/device/oprom/yabel/pmm.h')
-rw-r--r--src/device/oprom/yabel/pmm.h46
1 files changed, 46 insertions, 0 deletions
diff --git a/src/device/oprom/yabel/pmm.h b/src/device/oprom/yabel/pmm.h
new file mode 100644
index 0000000000..3cc3c17ac6
--- /dev/null
+++ b/src/device/oprom/yabel/pmm.h
@@ -0,0 +1,46 @@
+/****************************************************************************
+ * YABEL BIOS Emulator
+ *
+ * This program and the accompanying materials
+ * are made available under the terms of the BSD License
+ * which accompanies this distribution, and is available at
+ * http://www.opensource.org/licenses/bsd-license.php
+ *
+ * Copyright (c) 2008 Pattrick Hueper <phueper@hueper.net>
+ ****************************************************************************/
+
+#ifndef _YABEL_PMM_H_
+#define _YABEL_PMM_H_
+
+#include <types.h>
+
+/* PMM Structure see PMM Spec Version 1.01 Chapter 3.1.1
+ * (search web for specspmm101.pdf)
+ */
+typedef struct {
+ u8 signature[4];
+ u8 struct_rev;
+ u8 length;
+ u8 checksum;
+ u32 entry_point_offset;
+ u8 reserved[5];
+ /* Code is not part of the speced PMM struct, however, since I cannot
+ * put the handling of PMM in the virtual memory (I dont want to hack it
+ * together in x86 assembly ;-)) this code array is pointed to by
+ * entry_point_offset, in code there is only a INT call and a RETF,
+ * thus every PMM call will issue a PMM INT (only defined in YABEL,
+ * see interrupt.c) and the INT Handler will do the actual PMM work.
+ */
+ u8 code[3];
+} __attribute__ ((__packed__)) pmm_information_t;
+
+/* This function is used to setup the PMM struct in virtual memory
+ * at a certain offset */
+u8 pmm_setup(u16 segment, u16 offset);
+
+/* This is the INT Handler mentioned above, called by my special PMM INT. */
+void pmm_handleInt(void);
+
+void pmm_test(void);
+
+#endif // _YABEL_PMM_H