0.0.2d: Added BGA support, graphics!

include/drivers/elf.h

@@ -36,12 +36,13 @@ typedef struct {
   uint32_t p_align;
 } Elf32_Phdr;
 
+//typedef int (*elf_entry_t)(int, char**);
 typedef int (*elf_entry_t)(void);
 
 typedef struct {
   elf_entry_t entry_point;
 } elf_executable_t;
 
-elf_executable_t* load_elf32(void* elf_data);
+int load_elf32(void* elf_data, elf_executable_t** ptr);
 
 #endif

include/drivers/graphics/vga.h

@@ -0,0 +1,26 @@
+#ifndef _VGA_GRAPHICS_H
+#define _VGA_GRAPHICS_H
+
+#include <types.h>
+
+struct bga_framebuffer
+{
+    volatile uint8_t* addr;
+
+    uint32_t width;
+    uint32_t height;
+
+    uint32_t pitch; /* bytes per scanline */
+    uint32_t bpp;
+};
+
+
+void bga_defaults(void);
+void bga_set_video_mode(uint32_t width, uint32_t height, uint32_t bit_depth);
+
+void bga_putpixel(uint32_t x, uint32_t y, uint32_t color);
+
+
+void bga_drawline(int x0, int y0, int x1, int y1, uint32_t color);
+
+#endif

include/drivers/ide.h

@@ -44,4 +44,6 @@ int32_t ide_write48(uint8_t drive, uint64_t lba, uint8_t sector_count, const voi
 int32_t read_sector(uint64_t lba, void* buffer);
 int32_t write_sector(uint64_t lba, const void* buffer);
 
+int get_sector_size(uint8_t drive);
+
 #endif