Merge pull request #78 from Tearth/develop

Develop
skni-kod · Apr 27, 2020 · fb3bc09 · fb3bc09
2 parents d2f7b44 + 338d8fe
commit fb3bc09
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Showing 38 changed files with 98 additions and 65 deletions.
diff --git a/os/kernel/src/drivers/dal/videocard/videocard.c b/os/kernel/src/drivers/dal/videocard/videocard.c
@@ -50,7 +50,7 @@ int8_t (*_draw_pixel_external_buffer)(uint8_t*, uint16_t, int8_t, uint16_t, uint
 int8_t (*_draw_line_external_buffer)(uint8_t*, uint16_t, uint8_t, uint16_t, uint16_t, uint16_t, uint16_t) = NULL;
 int8_t (*_draw_circle_external_buffer)(uint8_t*, uint16_t, uint8_t, uint16_t, uint16_t, uint16_t) = NULL;
 int8_t (*_draw_rectangle_external_buffer)(uint8_t*, uint16_t, uint8_t, uint16_t, uint16_t, uint16_t, uint16_t) = NULL;
-int8_t (*_clear_screen_external_buffer)(uint8_t*, uint16_t) = NULL;
+int8_t (*_clear_screen_external_buffer)(uint8_t*, uint16_t, uint16_t*, uint16_t*) = NULL;
 
 int8_t (*_swap_external_buffer)(uint8_t*, uint16_t) = NULL;
 uint8_t* (*_create_external_buffer)(uint16_t) = NULL;
@@ -466,8 +466,8 @@ int8_t video_card_draw_circle_external_buffer(uint8_t* buffer, uint16_t mode, ui
 int8_t video_card_draw_rectangle_external_buffer(uint8_t* buffer, uint16_t mode, uint8_t color, uint16_t ax, uint16_t ay, uint16_t bx, uint16_t by){
     return (*_draw_rectangle_external_buffer)(buffer, mode, color, ax, ay, bx, by);
 }
-int8_t video_card_clear_screen_external_buffer(uint8_t* buffer, uint16_t mode){
-    return (*_clear_screen_external_buffer)(buffer, mode);
+int8_t video_card_clear_screen_external_buffer(uint8_t* buffer, uint16_t mode, uint16_t* x, uint16_t* y){
+    return (*_clear_screen_external_buffer)(buffer, mode, x, y);
 }
 
 int8_t video_card_swap_external_buffer(uint8_t* buffer, uint16_t mode){

diff --git a/os/kernel/src/drivers/dal/videocard/videocard.h b/os/kernel/src/drivers/dal/videocard/videocard.h
@@ -61,7 +61,7 @@ typedef struct _driver_init_struct
     int8_t (*draw_line_external_buffer)(uint8_t*, uint16_t, uint8_t, uint16_t, uint16_t, uint16_t, uint16_t);
     int8_t (*draw_circle_external_buffer)(uint8_t*, uint16_t, uint8_t, uint16_t, uint16_t, uint16_t);
     int8_t (*draw_rectangle_external_buffer)(uint8_t*, uint16_t, uint8_t, uint16_t, uint16_t, uint16_t, uint16_t);
-    int8_t (*clear_screen_external_buffer)(uint8_t*, uint16_t);
+    int8_t (*clear_screen_external_buffer)(uint8_t*, uint16_t, uint16_t*, uint16_t*);
 
     int8_t (*swap_external_buffer)(uint8_t*, uint16_t);
     uint8_t* (*create_external_buffer)(uint16_t);
@@ -507,7 +507,7 @@ int8_t video_card_draw_pixel_external_buffer(uint8_t* buffer, uint16_t mode, int
 int8_t video_card_draw_line_external_buffer(uint8_t* buffer, uint16_t mode, uint8_t color, uint16_t ax, uint16_t ay, uint16_t bx, uint16_t by);
 int8_t video_card_draw_circle_external_buffer(uint8_t* buffer, uint16_t mode, uint8_t color, uint16_t x, uint16_t y, uint16_t radius);
 int8_t video_card_draw_rectangle_external_buffer(uint8_t* buffer, uint16_t mode, uint8_t color, uint16_t ax, uint16_t ay, uint16_t bx, uint16_t by);
-int8_t video_card_clear_screen_external_buffer(uint8_t* buffer, uint16_t mode);
+int8_t video_card_clear_screen_external_buffer(uint8_t* buffer, uint16_t mode, uint16_t* x, uint16_t* y);
 
 int8_t video_card_swap_external_buffer(uint8_t* buffer, uint16_t mode);
 uint8_t* video_card_create_external_buffer(uint16_t mode);

diff --git a/os/kernel/src/drivers/harddisk/ata/harddisk_ata.c b/os/kernel/src/drivers/harddisk/ata/harddisk_ata.c
@@ -152,10 +152,10 @@ int8_t __harddisk_ata_write_sector(HARDDISK_ATA_MASTER_SLAVE type, HARDDISK_ATA_
         for(int i = 0; i < 256; i++)
         {
             // Write 256 16-bit values.
-            io_out_word(io_port, buffer[i]);
-            // Cache flush.
-            io_out_byte(io_port + HARDDISK_IO_COMMAND_REGISTER_OFFSET, 0xE7);
+            io_out_word(io_port, buffer[i]); 
         }
+        // Cache flush.
+        io_out_byte(io_port + HARDDISK_IO_COMMAND_REGISTER_OFFSET, 0xE7);
         __harddisk_400ns_delay(control_port);
         return 1;
     }

diff --git a/os/kernel/src/drivers/vga/genericvga.c b/os/kernel/src/drivers/vga/genericvga.c
@@ -431,41 +431,41 @@ int8_t generic_vga_draw_rectangle_external_buffer(uint8_t* buffer, uint16_t mode
         default: return -1;
     }
 }
-int8_t generic_vga_clear_screen_external_buffer(uint8_t* buffer, uint16_t mode){
+int8_t generic_vga_clear_screen_external_buffer(uint8_t* buffer, uint16_t mode, uint16_t* x, uint16_t* y){
     switch(mode)
     {
         case 0x00:
-            return mode00h_clear_screen_external_buffer(buffer, mode);
+            return mode00h_clear_screen_external_buffer(buffer, mode, x, y);
         case 0x01:
-            return mode01h_clear_screen_external_buffer(buffer, mode);
+            return mode01h_clear_screen_external_buffer(buffer, mode, x, y);
         case 0x02:
-            return mode02h_clear_screen_external_buffer(buffer, mode);
+            return mode02h_clear_screen_external_buffer(buffer, mode, x, y);
         case 0x03:
-            return mode03h_clear_screen_external_buffer(buffer, mode);
+            return mode03h_clear_screen_external_buffer(buffer, mode, x, y);
         case 0x04:
-            return mode04h_clear_screen_external_buffer(buffer, mode);
+            return mode04h_clear_screen_external_buffer(buffer, mode, x, y);
         case 0x05:
-            return mode05h_clear_screen_external_buffer(buffer, mode);
+            return mode05h_clear_screen_external_buffer(buffer, mode, x, y);
         case 0x06: 
-            return mode06h_clear_screen_external_buffer(buffer, mode);
+            return mode06h_clear_screen_external_buffer(buffer, mode, x, y);
         case 0x07:
-            return mode07h_clear_screen_external_buffer(buffer, mode);
+            return mode07h_clear_screen_external_buffer(buffer, mode, x, y);
         case 0x0D:
-            return mode0dh_clear_screen_external_buffer(buffer, mode);
+            return mode0dh_clear_screen_external_buffer(buffer, mode, x, y);
         case 0x0E:
-            return mode0eh_clear_screen_external_buffer(buffer, mode);
+            return mode0eh_clear_screen_external_buffer(buffer, mode, x, y);
         case 0x0F:
-            return mode0fh_clear_screen_external_buffer(buffer, mode);
+            return mode0fh_clear_screen_external_buffer(buffer, mode, x, y);
         case 0x10:
-            return mode10h_clear_screen_external_buffer(buffer, mode);
+            return mode10h_clear_screen_external_buffer(buffer, mode, x, y);
         case 0x11:
-            return mode11h_clear_screen_external_buffer(buffer, mode);
+            return mode11h_clear_screen_external_buffer(buffer, mode, x, y);
         case 0x12:
-            return mode12h_clear_screen_external_buffer(buffer, mode);
+            return mode12h_clear_screen_external_buffer(buffer, mode, x, y);
         case 0x13:
-            return mode13h_clear_screen_external_buffer(buffer, mode);
+            return mode13h_clear_screen_external_buffer(buffer, mode, x, y);
         case 0x69:
-            return modey_clear_screen_external_buffer(buffer, mode);
+            return modey_clear_screen_external_buffer(buffer, mode, x, y);
         default: return -1;
     }
 }

diff --git a/os/kernel/src/drivers/vga/genericvga.h b/os/kernel/src/drivers/vga/genericvga.h
@@ -13,7 +13,7 @@ int8_t generic_vga_draw_pixel_external_buffer(uint8_t* buffer, uint16_t mode, in
 int8_t generic_vga_draw_line_external_buffer(uint8_t* buffer, uint16_t mode, uint8_t color, uint16_t ax, uint16_t ay, uint16_t bx, uint16_t by);
 int8_t generic_vga_draw_circle_external_buffer(uint8_t* buffer, uint16_t mode, uint8_t color, uint16_t x, uint16_t y, uint16_t radius);
 int8_t generic_vga_draw_rectangle_external_buffer(uint8_t* buffer, uint16_t mode, uint8_t color, uint16_t ax, uint16_t ay, uint16_t bx, uint16_t by);
-int8_t generic_vga_clear_screen_external_buffer(uint8_t* buffer, uint16_t mode);
+int8_t generic_vga_clear_screen_external_buffer(uint8_t* buffer, uint16_t mode, uint16_t* x, uint16_t* y);
 
 int8_t generic_vga_swap_external_buffer(uint8_t* buffer, uint16_t mode);
 uint8_t* generic_vga_create_external_buffer(uint16_t mode);

diff --git a/os/kernel/src/drivers/vga/modes/mode_00h/mode_00h.c b/os/kernel/src/drivers/vga/modes/mode_00h/mode_00h.c
@@ -912,8 +912,10 @@ int8_t mode00h_draw_circle_external_buffer(uint8_t* buffer, uint16_t mode, uint8
 int8_t mode00h_draw_rectangle_external_buffer(uint8_t* buffer, uint16_t mode, uint8_t color, uint16_t ax, uint16_t ay, uint16_t bx, uint16_t by){
 	return -1;
 }
-int8_t mode00h_clear_screen_external_buffer(uint8_t* buffer, uint16_t mode)
+int8_t mode00h_clear_screen_external_buffer(uint8_t* buffer, uint16_t mode, uint16_t* x, uint16_t* y)
 {
+	if(x != NULL) *x = 0;
+	if(y != NULL) *y = 0;
     vga_color_without_blink col = {.background = VGA_MODE_00H_COLOR_BLACK, .letter = VGA_MODE_00H_COLOR_LIGHT_GRAY};
 	for (uint16_t i = 0; i < VGA_MODE_00H_SCREEN_ROWS; ++i)
     {
@@ -936,7 +938,7 @@ int8_t mode00h_swap_external_buffer(uint8_t* buffer, uint16_t mode){
 uint8_t* mode00h_create_external_buffer(uint16_t mode){
 	uint8_t* ptr = heap_kernel_alloc(MODE00H_HEIGHT * MODE00H_WIDTH * sizeof(screen_char), 0);
 	memset(ptr, 0, MODE00H_HEIGHT * MODE00H_WIDTH * sizeof(screen_char));
-	mode00h_clear_screen_external_buffer(ptr, mode);
+	mode00h_clear_screen_external_buffer(ptr, mode, NULL, NULL);
 	return ptr;
 }
 

diff --git a/os/kernel/src/drivers/vga/modes/mode_00h/mode_00h.h b/os/kernel/src/drivers/vga/modes/mode_00h/mode_00h.h
@@ -395,7 +395,7 @@ int8_t mode00h_draw_pixel_external_buffer(uint8_t* buffer, uint16_t mode, int8_t
 int8_t mode00h_draw_line_external_buffer(uint8_t* buffer, uint16_t mode, uint8_t color, uint16_t ax, uint16_t ay, uint16_t bx, uint16_t by);
 int8_t mode00h_draw_circle_external_buffer(uint8_t* buffer, uint16_t mode, uint8_t color, uint16_t x, uint16_t y, uint16_t radius);
 int8_t mode00h_draw_rectangle_external_buffer(uint8_t* buffer, uint16_t mode, uint8_t color, uint16_t ax, uint16_t ay, uint16_t bx, uint16_t by);
-int8_t mode00h_clear_screen_external_buffer(uint8_t* buffer, uint16_t mode);
+int8_t mode00h_clear_screen_external_buffer(uint8_t* buffer, uint16_t mode, uint16_t* x, uint16_t* y);
 
 int8_t mode00h_swap_external_buffer(uint8_t* buffer, uint16_t mode);
 uint8_t* mode00h_create_external_buffer(uint16_t mode);

diff --git a/os/kernel/src/drivers/vga/modes/mode_01h/mode_01h.c b/os/kernel/src/drivers/vga/modes/mode_01h/mode_01h.c
@@ -912,8 +912,10 @@ int8_t mode01h_draw_circle_external_buffer(uint8_t* buffer, uint16_t mode, uint8
 int8_t mode01h_draw_rectangle_external_buffer(uint8_t* buffer, uint16_t mode, uint8_t color, uint16_t ax, uint16_t ay, uint16_t bx, uint16_t by){
 	return -1;
 }
-int8_t mode01h_clear_screen_external_buffer(uint8_t* buffer, uint16_t mode)
+int8_t mode01h_clear_screen_external_buffer(uint8_t* buffer, uint16_t mode, uint16_t* x, uint16_t* y)
 {
+	if(x != NULL) *x = 0;
+	if(y != NULL) *y = 0;
     vga_color_without_blink col = {.background = VGA_MODE_01H_COLOR_BLACK, .letter = VGA_MODE_01H_COLOR_LIGHT_GRAY};
 	for (uint16_t i = 0; i < VGA_MODE_01H_SCREEN_ROWS; ++i)
     {
@@ -936,7 +938,7 @@ int8_t mode01h_swap_external_buffer(uint8_t* buffer, uint16_t mode){
 uint8_t* mode01h_create_external_buffer(uint16_t mode){
 	uint8_t* ptr =  heap_kernel_alloc(MODE01H_HEIGHT * MODE01H_WIDTH * sizeof(screen_char), 0);
 	memset(ptr, 0, MODE01H_HEIGHT * MODE01H_WIDTH * sizeof(screen_char));
-	mode01h_clear_screen_external_buffer(ptr, mode);
+	mode01h_clear_screen_external_buffer(ptr, mode, NULL, NULL);
 	return ptr;
 }
 

diff --git a/os/kernel/src/drivers/vga/modes/mode_01h/mode_01h.h b/os/kernel/src/drivers/vga/modes/mode_01h/mode_01h.h
@@ -395,7 +395,7 @@ int8_t mode01h_draw_pixel_external_buffer(uint8_t* buffer, uint16_t mode, int8_t
 int8_t mode01h_draw_line_external_buffer(uint8_t* buffer, uint16_t mode, uint8_t color, uint16_t ax, uint16_t ay, uint16_t bx, uint16_t by);
 int8_t mode01h_draw_circle_external_buffer(uint8_t* buffer, uint16_t mode, uint8_t color, uint16_t x, uint16_t y, uint16_t radius);
 int8_t mode01h_draw_rectangle_external_buffer(uint8_t* buffer, uint16_t mode, uint8_t color, uint16_t ax, uint16_t ay, uint16_t bx, uint16_t by);
-int8_t mode01h_clear_screen_external_buffer(uint8_t* buffer, uint16_t mode);
+int8_t mode01h_clear_screen_external_buffer(uint8_t* buffer, uint16_t mode, uint16_t* x, uint16_t* y);
 
 int8_t mode01h_swap_external_buffer(uint8_t* buffer, uint16_t mode);
 uint8_t* mode01h_create_external_buffer(uint16_t mode);

diff --git a/os/kernel/src/drivers/vga/modes/mode_02h/mode_02h.c b/os/kernel/src/drivers/vga/modes/mode_02h/mode_02h.c
@@ -912,8 +912,10 @@ int8_t mode02h_draw_circle_external_buffer(uint8_t* buffer, uint16_t mode, uint8
 int8_t mode02h_draw_rectangle_external_buffer(uint8_t* buffer, uint16_t mode, uint8_t color, uint16_t ax, uint16_t ay, uint16_t bx, uint16_t by){
 	return -1;
 }
-int8_t mode02h_clear_screen_external_buffer(uint8_t* buffer, uint16_t mode)
+int8_t mode02h_clear_screen_external_buffer(uint8_t* buffer, uint16_t mode, uint16_t* x, uint16_t* y)
 {
+	if(x != NULL) *x = 0;
+	if(y != NULL) *y = 0;
     vga_color_without_blink col = {.background = VGA_MODE_02H_COLOR_BLACK, .letter = VGA_MODE_02H_COLOR_LIGHT_GRAY};
 	for (uint16_t i = 0; i < VGA_MODE_02H_SCREEN_ROWS; ++i)
     {
@@ -936,7 +938,7 @@ int8_t mode02h_swap_external_buffer(uint8_t* buffer, uint16_t mode){
 uint8_t* mode02h_create_external_buffer(uint16_t mode){
 	uint8_t* ptr = heap_kernel_alloc(MODE02H_HEIGHT * MODE02H_WIDTH * sizeof(screen_char), 0);
 	memset(ptr, 0, MODE02H_HEIGHT * MODE02H_WIDTH * sizeof(screen_char));
-	mode02h_clear_screen_external_buffer(ptr, mode);
+	mode02h_clear_screen_external_buffer(ptr, mode, NULL, NULL);
 	return ptr;
 }
 

diff --git a/os/kernel/src/drivers/vga/modes/mode_02h/mode_02h.h b/os/kernel/src/drivers/vga/modes/mode_02h/mode_02h.h
@@ -395,7 +395,7 @@ int8_t mode02h_draw_pixel_external_buffer(uint8_t* buffer, uint16_t mode, int8_t
 int8_t mode02h_draw_line_external_buffer(uint8_t* buffer, uint16_t mode, uint8_t color, uint16_t ax, uint16_t ay, uint16_t bx, uint16_t by);
 int8_t mode02h_draw_circle_external_buffer(uint8_t* buffer, uint16_t mode, uint8_t color, uint16_t x, uint16_t y, uint16_t radius);
 int8_t mode02h_draw_rectangle_external_buffer(uint8_t* buffer, uint16_t mode, uint8_t color, uint16_t ax, uint16_t ay, uint16_t bx, uint16_t by);
-int8_t mode02h_clear_screen_external_buffer(uint8_t* buffer, uint16_t mode);
+int8_t mode02h_clear_screen_external_buffer(uint8_t* buffer, uint16_t mode, uint16_t* x, uint16_t* y);
 
 int8_t mode02h_swap_external_buffer(uint8_t* buffer, uint16_t mode);
 uint8_t* mode02h_create_external_buffer(uint16_t mode);

diff --git a/os/kernel/src/drivers/vga/modes/mode_03h/mode_03h.c b/os/kernel/src/drivers/vga/modes/mode_03h/mode_03h.c
@@ -920,8 +920,10 @@ int8_t mode03h_draw_circle_external_buffer(uint8_t* buffer, uint16_t mode, uint8
 int8_t mode03h_draw_rectangle_external_buffer(uint8_t* buffer, uint16_t mode, uint8_t color, uint16_t ax, uint16_t ay, uint16_t bx, uint16_t by){
 	return -1;
 }
-int8_t mode03h_clear_screen_external_buffer(uint8_t* buffer, uint16_t mode)
+int8_t mode03h_clear_screen_external_buffer(uint8_t* buffer, uint16_t mode, uint16_t* x, uint16_t* y)
 {
+	if(x != NULL) *x = 0;
+	if(y != NULL) *y = 0;
     vga_color_without_blink col = {.background = VGA_MODE_03H_COLOR_BLACK, .letter = VGA_MODE_03H_COLOR_LIGHT_GRAY};
 	for (uint16_t i = 0; i < VGA_MODE_03H_SCREEN_ROWS; ++i)
     {
@@ -944,7 +946,7 @@ int8_t mode03h_swap_external_buffer(uint8_t* buffer, uint16_t mode){
 uint8_t* mode03h_create_external_buffer(uint16_t mode){
 	uint8_t* ptr =  heap_kernel_alloc(MODE03H_HEIGHT * MODE03H_WIDTH * sizeof(screen_char), 0);
 	memset(ptr, 0, MODE03H_HEIGHT * MODE03H_WIDTH * sizeof(screen_char));
-	mode03h_clear_screen_external_buffer(ptr, mode);
+	mode03h_clear_screen_external_buffer(ptr, mode, NULL, NULL);
 	return ptr;
 }
 

diff --git a/os/kernel/src/drivers/vga/modes/mode_03h/mode_03h.h b/os/kernel/src/drivers/vga/modes/mode_03h/mode_03h.h
@@ -393,7 +393,7 @@ int8_t mode03h_draw_pixel_external_buffer(uint8_t* buffer, uint16_t mode, int8_t
 int8_t mode03h_draw_line_external_buffer(uint8_t* buffer, uint16_t mode, uint8_t color, uint16_t ax, uint16_t ay, uint16_t bx, uint16_t by);
 int8_t mode03h_draw_circle_external_buffer(uint8_t* buffer, uint16_t mode, uint8_t color, uint16_t x, uint16_t y, uint16_t radius);
 int8_t mode03h_draw_rectangle_external_buffer(uint8_t* buffer, uint16_t mode, uint8_t color, uint16_t ax, uint16_t ay, uint16_t bx, uint16_t by);
-int8_t mode03h_clear_screen_external_buffer(uint8_t* buffer, uint16_t mode);
+int8_t mode03h_clear_screen_external_buffer(uint8_t* buffer, uint16_t mode, uint16_t* x, uint16_t* y);
 
 int8_t mode03h_swap_external_buffer(uint8_t* buffer, uint16_t mode);
 uint8_t* mode03h_create_external_buffer(uint16_t mode);

diff --git a/os/kernel/src/drivers/vga/modes/mode_04h/mode_04h.c b/os/kernel/src/drivers/vga/modes/mode_04h/mode_04h.c
@@ -338,7 +338,7 @@ int8_t mode04h_draw_circle_external_buffer(uint8_t* buffer, uint16_t mode, uint8
 int8_t mode04h_draw_rectangle_external_buffer(uint8_t* buffer, uint16_t mode, uint8_t color, uint16_t ax, uint16_t ay, uint16_t bx, uint16_t by){
     return 0;
 }
-int8_t mode04h_clear_screen_external_buffer(uint8_t* buffer, uint16_t mode){
+int8_t mode04h_clear_screen_external_buffer(uint8_t* buffer, uint16_t mode, uint16_t* x, uint16_t* y){
     memset(buffer, 0, 2 * MODE04H_HEIGHT * MODE04H_WIDTH / 8);
     return 0;
 }

diff --git a/os/kernel/src/drivers/vga/modes/mode_04h/mode_04h.h b/os/kernel/src/drivers/vga/modes/mode_04h/mode_04h.h
@@ -30,7 +30,7 @@ int8_t mode04h_draw_pixel_external_buffer(uint8_t* buffer, uint16_t mode, int8_t
 int8_t mode04h_draw_line_external_buffer(uint8_t* buffer, uint16_t mode, uint8_t color, uint16_t ax, uint16_t ay, uint16_t bx, uint16_t by);
 int8_t mode04h_draw_circle_external_buffer(uint8_t* buffer, uint16_t mode, uint8_t color, uint16_t x, uint16_t y, uint16_t radius);
 int8_t mode04h_draw_rectangle_external_buffer(uint8_t* buffer, uint16_t mode, uint8_t color, uint16_t ax, uint16_t ay, uint16_t bx, uint16_t by);
-int8_t mode04h_clear_screen_external_buffer(uint8_t* buffer, uint16_t mode);
+int8_t mode04h_clear_screen_external_buffer(uint8_t* buffer, uint16_t mode, uint16_t* x, uint16_t* y);
 
 int8_t mode04h_swap_external_buffer(uint8_t* buffer, uint16_t mode);
 uint8_t* mode04h_create_external_buffer(uint16_t mode);

diff --git a/os/kernel/src/drivers/vga/modes/mode_05h/mode_05h.c b/os/kernel/src/drivers/vga/modes/mode_05h/mode_05h.c
@@ -338,7 +338,7 @@ int8_t mode05h_draw_circle_external_buffer(uint8_t* buffer, uint16_t mode, uint8
 int8_t mode05h_draw_rectangle_external_buffer(uint8_t* buffer, uint16_t mode, uint8_t color, uint16_t ax, uint16_t ay, uint16_t bx, uint16_t by){
     return 0;
 }
-int8_t mode05h_clear_screen_external_buffer(uint8_t* buffer, uint16_t mode){
+int8_t mode05h_clear_screen_external_buffer(uint8_t* buffer, uint16_t mode, uint16_t*x, uint16_t* y ){
     memset(buffer, 0, 2 * MODE05H_HEIGHT * MODE05H_WIDTH / 8);
     return 0;
 }

diff --git a/os/kernel/src/drivers/vga/modes/mode_05h/mode_05h.h b/os/kernel/src/drivers/vga/modes/mode_05h/mode_05h.h
@@ -31,7 +31,7 @@ int8_t mode05h_draw_pixel_external_buffer(uint8_t* buffer, uint16_t mode, int8_t
 int8_t mode05h_draw_line_external_buffer(uint8_t* buffer, uint16_t mode, uint8_t color, uint16_t ax, uint16_t ay, uint16_t bx, uint16_t by);
 int8_t mode05h_draw_circle_external_buffer(uint8_t* buffer, uint16_t mode, uint8_t color, uint16_t x, uint16_t y, uint16_t radius);
 int8_t mode05h_draw_rectangle_external_buffer(uint8_t* buffer, uint16_t mode, uint8_t color, uint16_t ax, uint16_t ay, uint16_t bx, uint16_t by);
-int8_t mode05h_clear_screen_external_buffer(uint8_t* buffer, uint16_t mode);
+int8_t mode05h_clear_screen_external_buffer(uint8_t* buffer, uint16_t mode, uint16_t* x, uint16_t* y);
 
 int8_t mode05h_swap_external_buffer(uint8_t* buffer, uint16_t mode);
 uint8_t* mode05h_create_external_buffer(uint16_t mode);

diff --git a/os/kernel/src/drivers/vga/modes/mode_06h/mode_06h.c b/os/kernel/src/drivers/vga/modes/mode_06h/mode_06h.c
@@ -335,7 +335,7 @@ int8_t mode06h_draw_circle_external_buffer(uint8_t* buffer, uint16_t mode, uint8
 int8_t mode06h_draw_rectangle_external_buffer(uint8_t* buffer, uint16_t mode, uint8_t color, uint16_t ax, uint16_t ay, uint16_t bx, uint16_t by){
     return 0;
 }
-int8_t mode06h_clear_screen_external_buffer(uint8_t* buffer, uint16_t mode){
+int8_t mode06h_clear_screen_external_buffer(uint8_t* buffer, uint16_t mode, uint16_t* x, uint16_t* y){
     memset(buffer, 0, 2 * MODE06H_HEIGHT * MODE06H_WIDTH / 16);
     return 0;
 }

diff --git a/os/kernel/src/drivers/vga/modes/mode_06h/mode_06h.h b/os/kernel/src/drivers/vga/modes/mode_06h/mode_06h.h
@@ -30,7 +30,7 @@ int8_t mode06h_draw_pixel_external_buffer(uint8_t* buffer, uint16_t mode, int8_t
 int8_t mode06h_draw_line_external_buffer(uint8_t* buffer, uint16_t mode, uint8_t color, uint16_t ax, uint16_t ay, uint16_t bx, uint16_t by);
 int8_t mode06h_draw_circle_external_buffer(uint8_t* buffer, uint16_t mode, uint8_t color, uint16_t x, uint16_t y, uint16_t radius);
 int8_t mode06h_draw_rectangle_external_buffer(uint8_t* buffer, uint16_t mode, uint8_t color, uint16_t ax, uint16_t ay, uint16_t bx, uint16_t by);
-int8_t mode06h_clear_screen_external_buffer(uint8_t* buffer, uint16_t mode);
+int8_t mode06h_clear_screen_external_buffer(uint8_t* buffer, uint16_t mode, uint16_t* x, uint16_t* y);
 
 int8_t mode06h_swap_external_buffer(uint8_t* buffer, uint16_t mode);
 uint8_t* mode06h_create_external_buffer(uint16_t mode);