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132 | giacomo | 1 | /* |
2 | Copyright (C) 1996 by Josh Vanderhoof |
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3 | |||
4 | You are free to distribute and modify this file, as long as you |
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5 | do not remove this copyright notice and clearly label modified |
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6 | versions as being modified. |
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7 | |||
8 | This software has NO WARRANTY. Use it at your own risk. |
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9 | */ |
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10 | |||
11 | #ifndef _VBE_H |
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12 | #define _VBE_H |
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13 | |||
14 | /* structures for vbe 2.0 */ |
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15 | |||
16 | struct vbe_info_block |
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17 | { |
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18 | char vbe_signature[4]; |
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19 | short vbe_version; |
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20 | unsigned short oem_string_off; |
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21 | unsigned short oem_string_seg; |
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22 | int capabilities; |
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23 | unsigned short video_mode_list_off; |
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24 | unsigned short video_mode_list_seg; |
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25 | short total_memory; |
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26 | short oem_software_rev; |
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27 | unsigned short oem_vendor_name_off; |
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28 | unsigned short oem_vendor_name_seg; |
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29 | unsigned short oem_product_name_off; |
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30 | unsigned short oem_product_name_seg; |
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31 | unsigned short oem_product_rev_off; |
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32 | unsigned short oem_product_rev_seg; |
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33 | char reserved[222]; |
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34 | char oem_data[256]; |
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35 | } __attribute__ ((packed)); |
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36 | |||
37 | #define VBE_ATTR_MODE_SUPPORTED (1 << 0) |
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38 | #define VBE_ATTR_TTY (1 << 2) |
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39 | #define VBE_ATTR_COLOR (1 << 3) |
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40 | #define VBE_ATTR_GRAPHICS (1 << 4) |
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41 | #define VBE_ATTR_NOT_VGA (1 << 5) |
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42 | #define VBE_ATTR_NOT_WINDOWED (1 << 6) |
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43 | #define VBE_ATTR_LINEAR (1 << 7) |
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44 | |||
45 | #define VBE_WIN_RELOCATABLE (1 << 0) |
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46 | #define VBE_WIN_READABLE (1 << 1) |
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47 | #define VBE_WIN_WRITEABLE (1 << 2) |
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48 | |||
49 | #define VBE_MODEL_TEXT 0 |
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50 | #define VBE_MODEL_CGA 1 |
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51 | #define VBE_MODEL_HERCULES 2 |
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52 | #define VBE_MODEL_PLANAR 3 |
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53 | #define VBE_MODEL_PACKED 4 |
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54 | #define VBE_MODEL_256 5 |
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55 | #define VBE_MODEL_RGB 6 |
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56 | #define VBE_MODEL_YUV 7 |
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57 | |||
58 | struct vbe_mode_info_block |
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59 | { |
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60 | unsigned short mode_attributes; |
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61 | uint8_t win_a_attributes; |
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62 | uint8_t win_b_attributes; |
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63 | unsigned short win_granularity; |
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64 | unsigned short win_size; |
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65 | unsigned short win_a_segment; |
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66 | unsigned short win_b_segment; |
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67 | unsigned short win_func_ptr_off; |
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68 | unsigned short win_func_ptr_seg; |
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69 | unsigned short bytes_per_scanline; |
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70 | unsigned short x_resolution; |
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71 | unsigned short y_resolution; |
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72 | uint8_t x_char_size; |
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73 | uint8_t y_char_size; |
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74 | uint8_t number_of_planes; |
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75 | uint8_t bits_per_pixel; |
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76 | uint8_t number_of_banks; |
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77 | uint8_t memory_model; |
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78 | uint8_t bank_size; |
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79 | uint8_t number_of_image_pages; |
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80 | uint8_t res1; |
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81 | uint8_t red_mask_size; |
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82 | uint8_t red_field_position; |
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83 | uint8_t green_mask_size; |
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84 | uint8_t green_field_position; |
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85 | uint8_t blue_mask_size; |
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86 | uint8_t blue_field_position; |
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87 | uint8_t rsvd_mask_size; |
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88 | uint8_t rsvd_field_position; |
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89 | uint8_t direct_color_mode_info; |
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90 | unsigned int phys_base_ptr; |
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91 | unsigned int offscreen_mem_offset; |
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92 | unsigned short offscreen_mem_size; |
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93 | uint8_t res2[206]; |
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94 | } __attribute__ ((packed)); |
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95 | |||
96 | struct vbe_palette_entry |
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97 | { |
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98 | uint8_t blue; |
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99 | uint8_t green; |
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100 | uint8_t red; |
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101 | uint8_t align; |
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102 | } __attribute__ ((packed)); |
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103 | |||
104 | #endif |