diff --git a/headers/vbe.h b/headers/vbe.h index 41b7fd6..6ece596 100644 --- a/headers/vbe.h +++ b/headers/vbe.h @@ -6,6 +6,7 @@ struct vbe_interface { uint32_t *buff; uint16_t height; uint16_t width; + uint32_t pitch; uint8_t bpp; }; diff --git a/src/kernel.c b/src/kernel.c index 3d7871b..4e118be 100644 --- a/src/kernel.c +++ b/src/kernel.c @@ -40,6 +40,6 @@ void kernel_main(multiboot_info_t *mbd, uint32_t magic) /* "complex 8*unknown quantity -byte descriptor table. -- Troy " */ /* "Martin 03:50, 22 March 2009 (UTC)\n"); */ - display.buff[1024] = 255; - shell_init(); + memset(display.buff, 255, 1024 * 1024); + /* shell_init(); */ } diff --git a/src/memory/memory.c b/src/memory/memory.c index c209b42..66e03aa 100644 --- a/src/memory/memory.c +++ b/src/memory/memory.c @@ -46,9 +46,8 @@ static void add_frame_node(multiboot_memory_map_t *mmmt) * this situation: * --------############### */ - if (KERNEL_START > start_addr && KERNEL_START <= end_addr) { + if (KERNEL_START > start_addr && KERNEL_START <= end_addr) len = ROUND_FLOOR(KERNEL_START - start_addr, PAGE_SIZE); - } /** Kernel code end on the block * this situation: * ###############-------- diff --git a/src/multiboot.c b/src/multiboot.c index 51d654d..ed54d3d 100644 --- a/src/multiboot.c +++ b/src/multiboot.c @@ -9,6 +9,7 @@ #include "vbe.h" uint32_t multiboot_page_table[1024] __attribute__((aligned(PAGE_SIZE))); +uint32_t vbe_page_table[1024] __attribute__((aligned(PAGE_SIZE))); multiboot_memory_map_t *mmap_addr; multiboot_uint32_t mmap_length; @@ -27,22 +28,25 @@ static void init_mmap(multiboot_info_t *mbd_virt, size_t *pt_index) *pt_index += i; } -static void init_vbe(multiboot_info_t *mbd_virt, size_t *pt_index) +static void init_vbe(multiboot_info_t *mbd_virt) { const uint32_t framebuffer_size = mbd_virt->framebuffer_height * mbd_virt->framebuffer_width * CEIL(mbd_virt->framebuffer_bpp, 4); uint32_t i = 0; - for (; i < CEIL(framebuffer_size, PAGE_SIZE); i++) - multiboot_page_table[i + *pt_index] = + for (; i < CEIL(framebuffer_size, PAGE_SIZE); i++) { + if (i % 1024 == 0) + page_directory[800 + i / 1024] = + ((uint32_t)vbe_page_table - HEAP_END) | 0x03; + vbe_page_table[i % 1024] = ((mbd_virt->framebuffer_addr + i * PAGE_SIZE) & PAGE_MASK) | INIT_FLAGS; - display.buff = (uint32_t *)GET_PAGE_ADDR(1023, *pt_index) + + } + display.buff = (uint32_t *)GET_PAGE_ADDR(800 + i - 1 / 1024, 0) + (mbd_virt->framebuffer_addr % PAGE_SIZE); display.height = mbd_virt->framebuffer_height; display.width = mbd_virt->framebuffer_width; display.bpp = mbd_virt->framebuffer_bpp; - *pt_index += i; } void init_multiboot(multiboot_info_t *mbd, uint32_t magic) @@ -64,5 +68,5 @@ void init_multiboot(multiboot_info_t *mbd, uint32_t magic) (multiboot_info_t *)(GET_PAGE_ADDR(1023, 0) + (uint32_t)mbd % PAGE_SIZE); init_mmap(mbd_virt, &pt_index); - init_vbe(mbd, &pt_index); + init_vbe(mbd_virt); } diff --git a/src/terminal/put.c b/src/terminal/put.c index a1486ff..d446ce3 100644 --- a/src/terminal/put.c +++ b/src/terminal/put.c @@ -82,7 +82,7 @@ uint8_t terminal_get_default_color(void) uint8_t terminal_get_char(int column, int row) { - return screen->buffer[row * VGA_WIDTH + column]; + /* return screen->buffer[row * VGA_WIDTH + column]; */ } void terminal_putentryat(char c, uint8_t color, size_t x, size_t y)