From 8d7115560d469f901d7d8ccb242d0b437e7394aa Mon Sep 17 00:00:00 2001 From: Stefan Reinauer Date: Fri, 30 Nov 2012 12:34:04 -0800 Subject: Rename devices -> device to match src/include/device Change-Id: I5d0e5b4361c34881a3b81347aac48738cb5b9af0 Signed-off-by: Stefan Reinauer Reviewed-on: http://review.coreboot.org/1960 Tested-by: build bot (Jenkins) Reviewed-by: David Hendricks --- src/device/oprom/yabel/pmm.h | 46 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 src/device/oprom/yabel/pmm.h (limited to 'src/device/oprom/yabel/pmm.h') 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 + ****************************************************************************/ + +#ifndef _YABEL_PMM_H_ +#define _YABEL_PMM_H_ + +#include + +/* 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 -- cgit v1.2.3