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Fixed warnings

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This commit is contained in:
Carlos
2015-03-23 16:08:34 +01:00
parent 8a5e637701
commit 8ad1936237
13 changed files with 75 additions and 15 deletions
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15
21-shell/drivers/screen.c
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@@ -1,5 +1,6 @@
#include "screen.h"
#include "../cpu/ports.h"
#include "../libc/mem.h"
/* Declaration of private functions */
int get_cursor_offset();
@@ -64,7 +65,7 @@ void kprint_backspace() {
* Sets the video cursor to the returned offset
*/
int print_char(char c, int col, int row, char attr) {
unsigned char *vidmem = (unsigned char*) VIDEO_ADDRESS;
u8 *vidmem = (u8*) VIDEO_ADDRESS;
if (!attr) attr = WHITE_ON_BLACK;
/* Error control: print a red 'E' if the coords aren't right */
@@ -94,12 +95,12 @@ int print_char(char c, int col, int row, char attr) {
if (offset >= MAX_ROWS * MAX_COLS * 2) {
int i;
for (i = 1; i < MAX_ROWS; i++)
memory_copy(get_offset(0, i) + VIDEO_ADDRESS,
get_offset(0, i-1) + VIDEO_ADDRESS,
memory_copy((u8*)(get_offset(0, i) + VIDEO_ADDRESS),
(u8*)(get_offset(0, i-1) + VIDEO_ADDRESS),
MAX_COLS * 2);
/* Blank last line */
char *last_line = get_offset(0, MAX_ROWS-1) + VIDEO_ADDRESS;
char *last_line = (char*) (get_offset(0, MAX_ROWS-1) + (u8*) VIDEO_ADDRESS);
for (i = 0; i < MAX_COLS * 2; i++) last_line[i] = 0;
offset -= 2 * MAX_COLS;
@@ -125,15 +126,15 @@ void set_cursor_offset(int offset) {
/* Similar to get_cursor_offset, but instead of reading we write data */
offset /= 2;
port_byte_out(REG_SCREEN_CTRL, 14);
port_byte_out(REG_SCREEN_DATA, (unsigned char)(offset >> 8));
port_byte_out(REG_SCREEN_DATA, (u8)(offset >> 8));
port_byte_out(REG_SCREEN_CTRL, 15);
port_byte_out(REG_SCREEN_DATA, (unsigned char)(offset & 0xff));
port_byte_out(REG_SCREEN_DATA, (u8)(offset & 0xff));
}
void clear_screen() {
int screen_size = MAX_COLS * MAX_ROWS;
int i;
char *screen = VIDEO_ADDRESS;
u8 *screen = (u8*) VIDEO_ADDRESS;
for (i = 0; i < screen_size; i++) {
screen[i*2] = ' ';