diff options
Diffstat (limited to 'src/kernel/vbe.h')
| -rw-r--r-- | src/kernel/vbe.h | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/src/kernel/vbe.h b/src/kernel/vbe.h new file mode 100644 index 0000000..6fcdb56 --- /dev/null +++ b/src/kernel/vbe.h @@ -0,0 +1,71 @@ +#ifndef VBE_H +#define VBE_H + +#include <stdint.h> + +struct segoff { + uint16_t offset; + uint16_t segment; +} __attribute__ ((__packed__)); + +#define RM_PTR(type, segoff) ((type *)((segoff).segment * 16 + (segoff).offset)) + +enum vbe_capabilities { + VBE_CAP_SWITCHABLE_DAC = 0x1, + VBE_CAP_NON_VGA = 0x2, + VBE_CAP_WEIRD_RAMDAC = 0x4 +}; + +#define VBE_INFO \ + ((struct { \ + uint8_t signature[4]; \ + uint8_t minor_version; \ + uint8_t major_version; \ + struct segoff oem_name; \ + uint32_t capabilities; \ + struct segoff mode_list; \ + /*in units of 64kiB*/ \ + uint16_t total_memory; \ + uint16_t version_rev; \ + struct segoff vendor_name; \ + struct segoff product_name; \ + struct segoff product_rev_name; \ + } __attribute__ ((__packed__)) *)0x4200) + +#define VBE_MODE_INFO \ + ((struct { \ + uint16_t attribs; \ + uint8_t wina_attribs; \ + uint8_t winb_attribs; \ + uint16_t win_gran; \ + uint16_t win_size; \ + uint16_t wina_seg; \ + uint16_t winb_seg; \ + struct segoff win_func; \ + uint16_t pitch;/*in bytes*/ \ + uint16_t width; \ + uint16_t height; \ + uint8_t char_width; \ + uint8_t char_height; \ + uint8_t n_planes; \ + uint8_t bpp; \ + uint8_t n_banks; \ + uint8_t mem_model; \ + uint8_t bank_size;/*in kiB*/\ + uint8_t image_pages; \ + uint8_t reserved; \ + uint8_t red_len; \ + uint8_t red_off; \ + uint8_t green_len; \ + uint8_t green_off; \ + uint8_t blue_len; \ + uint8_t blue_off; \ + uint8_t alpha_len; \ + uint8_t alpha_off; \ + uint8_t color_attribs; \ + void *frame_buf; \ + void *off_screen; \ + uint16_t off_screen_length; \ + } __attribute__ ((__packed__)) *)0x4400) + +#endif
\ No newline at end of file |