diff --git a/kaleid/include/kernel/mboot.h b/kaleid/include/kernel/mboot.h new file mode 100644 index 0000000..27da31f --- /dev/null +++ b/kaleid/include/kernel/mboot.h @@ -0,0 +1,274 @@ +//----------------------------------------------------------------------------// +// GNU GPL OS/K // +// // +// Desc: multiboot.h - Multiboot header file. // +// // +// // +// Copyright © 1999,2003,2007-2010 Free Software Foundation, Inc. // +// Copyright © 2018-2019 The OS/K Team // +// // +// This file is part of OS/K. // +// // +// OS/K 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, either version 3 of the License, or // +// any later version. // +// // +// OS/K 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 OS/K. If not, see . // +//----------------------------------------------------------------------------// + +#ifndef MULTIBOOT_HEADER +#define MULTIBOOT_HEADER 1 + +/* How many bytes from the start of the file we search for the header. */ +#define MULTIBOOT_SEARCH 8192 +#define MULTIBOOT_HEADER_ALIGN 4 + +/* The magic field should contain this. */ +#define MULTIBOOT_HEADER_MAGIC 0x1BADB002 + +/* This should be in %eax. */ +#define MULTIBOOT_BOOTLOADER_MAGIC 0x2BADB002 + +/* Alignment of multiboot modules. */ +#define MULTIBOOT_MOD_ALIGN 0x00001000 + +/* Alignment of the multiboot info structure. */ +#define MULTIBOOT_INFO_ALIGN 0x00000004 + +/* Flags set in the 'flags' member of the multiboot header. */ + +/* Align all boot modules on i386 page (4KB) boundaries. */ +#define MULTIBOOT_PAGE_ALIGN 0x00000001 + +/* Must pass memory information to OS. */ +#define MULTIBOOT_MEMORY_INFO 0x00000002 + +/* Must pass video information to OS. */ +#define MULTIBOOT_VIDEO_MODE 0x00000004 + +/* This flag indicates the use of the address fields in the header. */ +#define MULTIBOOT_AOUT_KLUDGE 0x00010000 + + +#define MULTIBOOT_INFO_MEMORY 0x00000001 +/* is there a boot device set? */ +#define MULTIBOOT_INFO_BOOTDEV 0x00000002 +/* is the command-line defined? */ +#define MULTIBOOT_INFO_CMDLINE 0x00000004 +/* are there modules to do something with? */ +#define MULTIBOOT_INFO_MODS 0x00000008 + +/* These next two are mutually exclusive */ + +/* is there a symbol table loaded? */ +#define MULTIBOOT_INFO_AOUT_SYMS 0x00000010 +/* is there an ELF section header table? */ +#define MULTIBOOT_INFO_ELF_SHDR 0x00000020 + +/* is there a full memory map? */ +#define MULTIBOOT_INFO_MEM_MAP 0x00000040 + +/* Is there drive info? */ +#define MULTIBOOT_INFO_DRIVE_INFO 0x00000080 + +/* Is there a config table? */ +#define MULTIBOOT_INFO_CONFIG_TABLE 0x00000100 + +/* Is there a boot loader name? */ +#define MULTIBOOT_INFO_BOOT_LOADER_NAME 0x00000200 + +/* Is there a APM table? */ +#define MULTIBOOT_INFO_APM_TABLE 0x00000400 + +/* Is there video information? */ +#define MULTIBOOT_INFO_VBE_INFO 0x00000800 +#define MULTIBOOT_INFO_FRAMEBUFFER_INFO 0x00001000 + +#ifndef ASM_FILE + +typedef unsigned char uchar; +typedef unsigned short ushort; +typedef unsigned int uint; +typedef unsigned long ulong; + +struct multiboot_header +{ + /* Must be MULTIBOOT_MAGIC - see above. */ + uint magic; + + /* Feature flags. */ + uint flags; + + /* The above fields plus this one must equal 0 mod 2^32. */ + uint checksum; + + /* These are only valid if MULTIBOOT_AOUT_KLUDGE is set. */ + uint header_addr; + uint load_addr; + uint load_end_addr; + uint bss_end_addr; + uint entry_addr; + + /* These are only valid if MULTIBOOT_VIDEO_MODE is set. */ + uint mode_type; + uint width; + uint height; + uint depth; +}; + +/* The symbol table for a.out. */ +struct multiboot_aout_symbol_table +{ + uint tabsize; + uint strsize; + uint addr; + uint reserved; +}; +typedef struct multiboot_aout_symbol_table multiboot_aout_symbol_table_t; + +/* The section header table for ELF. */ +struct multiboot_elf_section_header_table +{ + uint num; + uint size; + uint addr; + uint shndx; +}; +typedef struct multiboot_elf_section_header_table + multiboot_elf_section_header_table_t; + +struct multiboot_info +{ + /* Multiboot info version number */ + uint flags; + + /* Available memory from BIOS */ + uint mem_lower; + uint mem_upper; + + /* "root" partition */ + uint boot_device; + + /* Kernel command line */ + uint cmdline; + + /* Boot-Module list */ + uint mods_count; + uint mods_addr; + + union + { + multiboot_aout_symbol_table_t aout_sym; + multiboot_elf_section_header_table_t elf_sec; + } u; + + /* Memory Mapping buffer */ + uint mmap_length; + uint mmap_addr; + + /* Drive Info buffer */ + uint drives_length; + uint drives_addr; + + /* ROM configuration table */ + uint config_table; + + /* Boot Loader Name */ + uint boot_loader_name; + + /* APM table */ + uint apm_table; + + /* Video */ + uint vbe_control_info; + uint vbe_mode_info; + ushort vbe_mode; + ushort vbe_interface_seg; + ushort vbe_interface_off; + ushort vbe_interface_len; + + ulong framebuffer_addr; + uint framebuffer_pitch; + uint framebuffer_width; + uint framebuffer_height; + uchar framebuffer_bpp; +#define MULTIBOOT_FRAMEBUFFER_TYPE_INDEXED 0 +#define MULTIBOOT_FRAMEBUFFER_TYPE_RGB 1 +#define MULTIBOOT_FRAMEBUFFER_TYPE_EGA_TEXT 2 + uchar framebuffer_type; + union + { + struct + { + uint framebuffer_palette_addr; + ushort framebuffer_palette_num_colors; + }; + struct + { + uchar framebuffer_red_field_position; + uchar framebuffer_red_mask_size; + uchar framebuffer_green_field_position; + uchar framebuffer_green_mask_size; + uchar framebuffer_blue_field_position; + uchar framebuffer_blue_mask_size; + }; + }; +}; +typedef struct multiboot_info multiboot_info_t; + +struct multiboot_color +{ + uchar red; + uchar green; + uchar blue; +}; + +struct multiboot_mmap_entry +{ + uint size; + uint addr_low; + uint addr_high; + uint len_low; + uint len_high; + uint type; +} __attribute__((packed)) __attribute__((aligned (4))); +typedef struct multiboot_mmap_entry multiboot_memory_map_t; + +struct multiboot_mod_list +{ + /* the memory used goes from bytes 'mod_start' to 'mod_end-1' inclusive */ + uint mod_start; + uint mod_end; + + /* Module command line */ + uint cmdline; + + /* padding to take it to 16 bytes (must be zero) */ + uint pad; +}; +typedef struct multiboot_mod_list multiboot_module_t; + +/* APM BIOS info. */ +struct multiboot_apm_info +{ + ushort version; + ushort cseg; + uint offset; + ushort cseg_16; + ushort dseg; + ushort flags; + ushort cseg_len; + ushort cseg_16_len; + ushort dseg_len; +}; + +#endif /* ! ASM_FILE */ + +#endif /* ! MULTIBOOT_HEADER */