1 /****************************************************************************
2  ****************************************************************************
3  ***
4  ***   This header was automatically generated from a Linux kernel header
5  ***   of the same name, to make information necessary for userspace to
6  ***   call into the kernel available to libc.  It contains only constants,
7  ***   structures, and macros generated from the original header, and thus,
8  ***   contains no copyrightable information.
9  ***
10  ***   To edit the content of this header, modify the corresponding
11  ***   source file (e.g. under external/kernel-headers/original/) then
12  ***   run bionic/libc/kernel/tools/update_all.py
13  ***
14  ***   Any manual change here will be lost the next time this script will
15  ***   be run. You've been warned!
16  ***
17  ****************************************************************************
18  ****************************************************************************/
19 #ifndef _UAPI__ASMARM_SETUP_H
20 #define _UAPI__ASMARM_SETUP_H
21 #include <linux/types.h>
22 #define COMMAND_LINE_SIZE 1024
23 #define ATAG_NONE 0x00000000
24 struct tag_header {
25   __u32 size;
26   __u32 tag;
27 };
28 #define ATAG_CORE 0x54410001
29 struct tag_core {
30   __u32 flags;
31   __u32 pagesize;
32   __u32 rootdev;
33 };
34 #define ATAG_MEM 0x54410002
35 struct tag_mem32 {
36   __u32 size;
37   __u32 start;
38 };
39 #define ATAG_VIDEOTEXT 0x54410003
40 struct tag_videotext {
41   __u8 x;
42   __u8 y;
43   __u16 video_page;
44   __u8 video_mode;
45   __u8 video_cols;
46   __u16 video_ega_bx;
47   __u8 video_lines;
48   __u8 video_isvga;
49   __u16 video_points;
50 };
51 #define ATAG_RAMDISK 0x54410004
52 struct tag_ramdisk {
53   __u32 flags;
54   __u32 size;
55   __u32 start;
56 };
57 #define ATAG_INITRD 0x54410005
58 #define ATAG_INITRD2 0x54420005
59 struct tag_initrd {
60   __u32 start;
61   __u32 size;
62 };
63 #define ATAG_SERIAL 0x54410006
64 struct tag_serialnr {
65   __u32 low;
66   __u32 high;
67 };
68 #define ATAG_REVISION 0x54410007
69 struct tag_revision {
70   __u32 rev;
71 };
72 #define ATAG_VIDEOLFB 0x54410008
73 struct tag_videolfb {
74   __u16 lfb_width;
75   __u16 lfb_height;
76   __u16 lfb_depth;
77   __u16 lfb_linelength;
78   __u32 lfb_base;
79   __u32 lfb_size;
80   __u8 red_size;
81   __u8 red_pos;
82   __u8 green_size;
83   __u8 green_pos;
84   __u8 blue_size;
85   __u8 blue_pos;
86   __u8 rsvd_size;
87   __u8 rsvd_pos;
88 };
89 #define ATAG_CMDLINE 0x54410009
90 struct tag_cmdline {
91   char cmdline[1];
92 };
93 #define ATAG_ACORN 0x41000101
94 struct tag_acorn {
95   __u32 memc_control_reg;
96   __u32 vram_pages;
97   __u8 sounddefault;
98   __u8 adfsdrives;
99 };
100 #define ATAG_MEMCLK 0x41000402
101 struct tag_memclk {
102   __u32 fmemclk;
103 };
104 struct tag {
105   struct tag_header hdr;
106   union {
107     struct tag_core core;
108     struct tag_mem32 mem;
109     struct tag_videotext videotext;
110     struct tag_ramdisk ramdisk;
111     struct tag_initrd initrd;
112     struct tag_serialnr serialnr;
113     struct tag_revision revision;
114     struct tag_videolfb videolfb;
115     struct tag_cmdline cmdline;
116     struct tag_acorn acorn;
117     struct tag_memclk memclk;
118   } u;
119 };
120 struct tagtable {
121   __u32 tag;
122   int(* parse) (const struct tag *);
123 };
124 #define tag_member_present(tag,member) ((unsigned long) (& ((struct tag *) 0L)->member + 1) <= (tag)->hdr.size * 4)
125 #define tag_next(t) ((struct tag *) ((__u32 *) (t) + (t)->hdr.size))
126 #define tag_size(type) ((sizeof(struct tag_header) + sizeof(struct type)) >> 2)
127 #define for_each_tag(t,base) for(t = base; t->hdr.size; t = tag_next(t))
128 #endif
129