Refactor option rom initialization code in coreboot.
- move int15 handler out of the generic code into the mainboard directories
of those mainboards that actually use it.
- move vbe headers to vbe.h
- move function prototypes used in native oprom code to x86.h
Change-Id: Idfff5e804ea328f7b5feebac72497c97329320ee
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/255
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marcj303@gmail.com>
diff --git a/src/devices/oprom/x86.h b/src/devices/oprom/x86.h
new file mode 100644
index 0000000..0bc2412
--- /dev/null
+++ b/src/devices/oprom/x86.h
@@ -0,0 +1,48 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2007 Advanced Micro Devices, Inc.
+ * Copyright (C) 2009-2010 coresystems GmbH
+ *
+ * This program 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; version 2 of the License.
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#define REALMODE_BASE ((void *)0x600)
+
+struct realmode_idt {
+ u16 offset, cs;
+};
+
+void x86_exception(struct eregs *info);
+
+/* From x86_asm.S */
+extern unsigned char __idt_handler, __idt_handler_size;
+extern unsigned char __realmode_code, __realmode_code_size;
+extern unsigned char __realmode_call, __realmode_interrupt;
+
+extern void (*realmode_call)(u32 addr, u32 eax, u32 ebx, u32 ecx, u32 edx,
+ u32 esi, u32 edi) __attribute__((regparm(0)));
+
+extern void (*realmode_interrupt)(u32 intno, u32 eax, u32 ebx, u32 ecx, u32 edx,
+ u32 esi, u32 edi) __attribute__((regparm(0)));
+
+#define FAKE_MEMORY_SIZE (1024*1024) // only 1MB
+#define INITIAL_EBDA_SEGMENT 0xF600
+#define INITIAL_EBDA_SIZE 0x400
+
+int int10_handler(struct eregs *regs);
+int int12_handler(struct eregs *regs);
+int int16_handler(struct eregs *regs);
+int int1a_handler(struct eregs *regs);
+