You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
+#include <stdio.h>
#include <string.h>
#include "keyb.h"
#include "intr.h"
#include "asmops.h"
+#include "kbregs.h"
-#define KB_IRQ 1
-#define KB_PORT 0x60
+#define delay7us() \
+ do { \
+ iodelay(); iodelay(); iodelay(); iodelay(); \
+ iodelay(); iodelay(); iodelay(); \
+ } while(0)
/* table with rough translations from set 1 scancodes to ASCII-ish */
static int scantbl[] = {
buffer[buf_ridx] = key;
}
+int kb_wait_write(void)
+{
+ int i;
+ for(i=0; i<32768; i++) {
+ if(!(inb(KB_STATUS_PORT) & KB_STAT_INBUF_FULL)) {
+ return 1;
+ }
+ iodelay();
+ }
+ /*printf("kb_wait_write timeout\n");*/
+ return 0;
+}
+
+int kb_wait_read(void)
+{
+ int i;
+ for(i=0; i<32768; i++) {
+ if((inb(KB_STATUS_PORT) & KB_STAT_OUTBUF_FULL)) {
+ return 1;
+ }
+ iodelay();
+ }
+ /*printf("kb_wait_read timeout\n");*/
+ return 0;
+}
+
+void kb_send_cmd(unsigned char cmd)
+{
+ kb_wait_write();
+ outb(cmd, KB_CMD_PORT);
+}
+
+void kb_send_data(unsigned char data)
+{
+ kb_wait_write();
+ outb(data, KB_DATA_PORT);
+}
+
+unsigned char kb_read_data(void)
+{
+ kb_wait_read();
+ delay7us();
+ return inb(KB_DATA_PORT);
+}
+
static void kbintr()
{
unsigned char code;
int key, press;
- code = inb(KB_PORT);
+ code = inb(KB_DATA_PORT);
if(code >= 128) {
press = 0;