vbetool: vbe tracing tool initial commit.HEADmaster

Tool to trace video bios extension (vbe) execution.

Signed-off-by: Jérôme Glisse <jglisse@redhat.com>

1 files changed, 100 insertions, 0 deletions

diff --git a/lrmi.h b/lrmi.h
new file mode 100644
index 0000000..182864f
--- /dev/null
+++ b/lrmi.h
@@ -0,0 +1,100 @@
+/*
+Linux Real Mode Interface - A library of DPMI-like functions for Linux.
+
+Copyright (C) 1998 by Josh Vanderhoof
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL JOSH VANDERHOOF BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+#ifndef LRMI_H
+#define LRMI_H
+
+#define LRMI_PREFIX LRMI_
+
+struct LRMI_regs {
+	unsigned int edi;
+	unsigned int esi;
+	unsigned int ebp;
+	unsigned int reserved;
+	unsigned int ebx;
+	unsigned int edx;
+	unsigned int ecx;
+	unsigned int eax;
+	unsigned short int flags;
+	unsigned short int es;
+	unsigned short int ds;
+	unsigned short int fs;
+	unsigned short int gs;
+	unsigned short int ip;
+	unsigned short int cs;
+	unsigned short int sp;
+	unsigned short int ss;
+};
+
+#define LRMI_CONCAT2(a, b) 	a ## b
+#define LRMI_CONCAT(a, b) 	LRMI_CONCAT2(a, b)
+#define LRMI_MAKENAME(a) 	LRMI_CONCAT(LRMI_PREFIX, a)
+
+/*
+ Initialize
+ returns 1 if sucessful, 0 for failure
+*/
+#define LRMI_init LRMI_MAKENAME(init)
+int
+LRMI_init(void);
+
+/*
+ Simulate a 16 bit far call
+ returns 1 if sucessful, 0 for failure
+*/
+#define LRMI_call LRMI_MAKENAME(call)
+int
+LRMI_call(struct LRMI_regs *r);
+
+/*
+ Simulate a 16 bit interrupt
+ returns 1 if sucessful, 0 for failure
+*/
+#define LRMI_int LRMI_MAKENAME(int)
+int
+LRMI_int(int interrupt, struct LRMI_regs *r);
+
+/*
+ Allocate real mode memory
+ The returned block is paragraph (16 byte) aligned
+*/
+#define LRMI_alloc_real LRMI_MAKENAME(alloc_real)
+void *
+LRMI_alloc_real(int size);
+
+/*
+ Free real mode memory
+*/
+#define LRMI_free_real LRMI_MAKENAME(free_real)
+void
+LRMI_free_real(void *m);
+
+/*
+ * Get the base address of the real memory address space block.
+ */
+size_t
+LRMI_base_addr(void);
+
+#endif