kern
view src/boot/mboot.h @ 41:928b0ebfff4d
merged the timer/rtc/etc from the misc branch
| author | John Tsiombikas <nuclear@member.fsf.org> |
|---|---|
| date | Tue, 14 Jun 2011 01:19:07 +0300 |
| parents | |
| children |
line source
1 #ifndef MBOOT_H_
2 #define MBOOT_H_
4 #include <inttypes.h>
6 #define MB_MEM (1 << 0)
7 #define MB_BOOTDEV (1 << 1)
8 #define MB_CMDLINE (1 << 2)
9 #define MB_MODULES (1 << 3)
10 #define MB_AOUT_SYM (1 << 4)
11 #define MB_ELF_SHDR (1 << 5)
12 #define MB_MMAP (1 << 6)
13 #define MB_DRIVES (1 << 7)
14 #define MB_CFGTAB (1 << 8)
15 #define MB_LDRNAME (1 << 9)
16 #define MB_APM (1 << 10)
17 #define MB_GFX (1 << 11)
19 #define MB_MEM_VALID 1
20 #define MB_DRIVE_CHS 0
21 #define MB_DRIVE_LBA 1
23 struct mboot_module {
24 uint32_t start_addr, end_addr;
25 char *str;
26 uint32_t reserved;
27 };
29 struct mboot_elf_shdr_table {
30 uint32_t num;
31 uint32_t size;
32 uint32_t addr;
33 uint32_t shndx;
34 };
36 struct mboot_mmap {
37 uint32_t skip;
38 uint32_t base_low, base_high;
39 uint32_t length_low, length_high;
40 uint32_t type;
41 };
43 struct mboot_drive {
44 uint32_t size;
45 uint8_t id;
46 uint8_t mode;
47 uint16_t cyl;
48 uint8_t heads, sect;
49 uint16_t ports[1]; /* zero-terminated */
50 } __attribute__ ((packed));
52 struct mboot_apm {
53 uint16_t ver;
54 uint16_t cseg;
55 uint32_t offs;
56 uint16_t cseg16;
57 uint16_t dseg;
58 uint16_t flags;
59 uint16_t cseg_len;
60 uint16_t cseg16_len;
61 uint16_t dseg_len;
62 } __attribute__ ((packed));
64 struct mboot_vbe {
65 uint32_t ctl_info;
66 uint32_t mode_info;
67 uint16_t mode;
68 uint16_t ifseg, ifoffs, iflen;
69 } __attribute__ ((packed));
72 /* multiboot information structure */
73 struct mboot_info {
74 uint32_t flags;
75 /* mem_lower: available low memory (up to 640kb)
76 * mem_upper: available upper memory (from 1mb and upwards)
77 */
78 uint32_t mem_lower, mem_upper;
79 /* boot device fields: MSB -> [part3|part2|part1|drive] <- LSB */
80 uint32_t boot_dev;
81 char *cmdline;
82 /* loaded kernel modules */
83 uint32_t mods_count;
84 struct mboot_module *mods;
85 /* elf sections table */
86 struct mboot_elf_shdr_table elf;
87 /* memory map */
88 uint32_t mmap_len;
89 struct mboot_mmap *mmap;
90 /* drives table */
91 uint32_t drives_len;
92 struct mboot_drive *drives;
93 /* address of BIOS ROM configuration table */
94 uint32_t cfgtable;
95 char *boot_loader_name;
96 /* advanced power management */
97 struct mboot_apm *apm;
98 /* video bios extensions */
99 struct mboot_vbe vbe;
100 };
103 #endif /* MBOOT_H_ */