drivers/staging/xgifb/vb_util.c

   1 #include "vb_def.h"
   2 #include "vgatypes.h"
   3 #include "vb_struct.h"
   4
   5 #include "XGIfb.h"
   6 #include <linux/io.h>
   7 #include <linux/types.h>
   8
   9 #include "vb_util.h"
  10
  11 void xgifb_reg_set(unsigned long port, u8 index, u8 data)
  12 {
  13         outb(index, port);
  14         outb(data, port + 1);
  15 }
  16
  17 u8 xgifb_reg_get(unsigned long port, u8 index)
  18 {
  19         u8 data;
  20
  21         outb(index, port);
  22         data = inb(port + 1);
  23         return data;
  24 }
  25
  26 void xgifb_reg_and_or(unsigned long port, u8 index,
  27                 unsigned data_and, unsigned data_or)
  28 {
  29         u8 temp;
  30
  31         temp = xgifb_reg_get(port, index); /* XGINew_Part1Port index 02 */
  32         temp = (temp & data_and) | data_or;
  33         xgifb_reg_set(port, index, temp);
  34 }
  35
  36 void xgifb_reg_and(unsigned long port, u8 index, unsigned data_and)
  37 {
  38         u8 temp;
  39
  40         temp = xgifb_reg_get(port, index); /* XGINew_Part1Port index 02 */
  41         temp &= data_and;
  42         xgifb_reg_set(port, index, temp);
  43 }
  44
  45 void xgifb_reg_or(unsigned long port, u8 index, unsigned data_or)
  46 {
  47         u8 temp;
  48
  49         temp = xgifb_reg_get(port, index); /* XGINew_Part1Port index 02 */
  50         temp |= data_or;
  51         xgifb_reg_set(port, index, temp);
  52 }