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