diff options
Diffstat (limited to 'ArmPkg/Application/LinuxLoader/Arm/LinuxAtag.h')
| -rw-r--r-- | ArmPkg/Application/LinuxLoader/Arm/LinuxAtag.h | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/ArmPkg/Application/LinuxLoader/Arm/LinuxAtag.h b/ArmPkg/Application/LinuxLoader/Arm/LinuxAtag.h new file mode 100644 index 0000000000..b4c7e5986e --- /dev/null +++ b/ArmPkg/Application/LinuxLoader/Arm/LinuxAtag.h @@ -0,0 +1,124 @@ +/** @file
+*
+* Copyright (c) 2011-2015, ARM Limited. All rights reserved.
+*
+* This program and the accompanying materials
+* are licensed and made available under the terms and conditions of the BSD License
+* which accompanies this distribution. The full text of the license may be found at
+* http://opensource.org/licenses/bsd-license.php
+*
+* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+*
+**/
+
+#ifndef __LINUX_ATAG_H__
+#define __LINUX_ATAG_H__
+
+//
+// ATAG Definitions
+//
+
+#define ATAG_MAX_SIZE 0x3000
+
+/* ATAG : list of possible tags */
+#define ATAG_NONE 0x00000000
+#define ATAG_CORE 0x54410001
+#define ATAG_MEM 0x54410002
+#define ATAG_VIDEOTEXT 0x54410003
+#define ATAG_RAMDISK 0x54410004
+#define ATAG_INITRD2 0x54420005
+#define ATAG_SERIAL 0x54410006
+#define ATAG_REVISION 0x54410007
+#define ATAG_VIDEOLFB 0x54410008
+#define ATAG_CMDLINE 0x54410009
+#define ATAG_ARM_MP_CORE 0x5441000A
+
+#define next_tag_address(t) ((LINUX_ATAG*)((UINT32)(t) + (((t)->header.size) << 2) ))
+#define tag_size(type) ((UINT32)((sizeof(LINUX_ATAG_HEADER) + sizeof(type)) >> 2))
+
+typedef struct {
+ UINT32 size; /* length of tag in words including this header */
+ UINT32 type; /* tag type */
+} LINUX_ATAG_HEADER;
+
+typedef struct {
+ UINT32 flags;
+ UINT32 pagesize;
+ UINT32 rootdev;
+} LINUX_ATAG_CORE;
+
+typedef struct {
+ UINT32 size;
+ UINTN start;
+} LINUX_ATAG_MEM;
+
+typedef struct {
+ UINT8 x;
+ UINT8 y;
+ UINT16 video_page;
+ UINT8 video_mode;
+ UINT8 video_cols;
+ UINT16 video_ega_bx;
+ UINT8 video_lines;
+ UINT8 video_isvga;
+ UINT16 video_points;
+} LINUX_ATAG_VIDEOTEXT;
+
+typedef struct {
+ UINT32 flags;
+ UINT32 size;
+ UINTN start;
+} LINUX_ATAG_RAMDISK;
+
+typedef struct {
+ UINT32 start;
+ UINT32 size;
+} LINUX_ATAG_INITRD2;
+
+typedef struct {
+ UINT32 low;
+ UINT32 high;
+} LINUX_ATAG_SERIALNR;
+
+typedef struct {
+ UINT32 rev;
+} LINUX_ATAG_REVISION;
+
+typedef struct {
+ UINT16 lfb_width;
+ UINT16 lfb_height;
+ UINT16 lfb_depth;
+ UINT16 lfb_linelength;
+ UINT32 lfb_base;
+ UINT32 lfb_size;
+ UINT8 red_size;
+ UINT8 red_pos;
+ UINT8 green_size;
+ UINT8 green_pos;
+ UINT8 blue_size;
+ UINT8 blue_pos;
+ UINT8 rsvd_size;
+ UINT8 rsvd_pos;
+} LINUX_ATAG_VIDEOLFB;
+
+typedef struct {
+ CHAR8 cmdline[1];
+} LINUX_ATAG_CMDLINE;
+
+typedef struct {
+ LINUX_ATAG_HEADER header;
+ union {
+ LINUX_ATAG_CORE core_tag;
+ LINUX_ATAG_MEM mem_tag;
+ LINUX_ATAG_VIDEOTEXT videotext_tag;
+ LINUX_ATAG_RAMDISK ramdisk_tag;
+ LINUX_ATAG_INITRD2 initrd2_tag;
+ LINUX_ATAG_SERIALNR serialnr_tag;
+ LINUX_ATAG_REVISION revision_tag;
+ LINUX_ATAG_VIDEOLFB videolfb_tag;
+ LINUX_ATAG_CMDLINE cmdline_tag;
+ } body;
+} LINUX_ATAG;
+
+#endif /* __LINUX_ATAG_H__ */
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