include/asm-m68k/blinken.h

   1 /*
   2 ** asm/blinken.h -- m68k blinkenlights support (currently hp300 only)
   3 **
   4 ** (c) 1998 Phil Blundell <philb@gnu.org>
   5 **
   6 ** This file is subject to the terms and conditions of the GNU General Public
   7 ** License.  See the file COPYING in the main directory of this archive
   8 ** for more details.
   9 **
  10 */
  11
  12 #ifndef _M68K_BLINKEN_H
  13 #define _M68K_BLINKEN_H
  14
  15 #include <asm/setup.h>
  16 #include <asm/io.h>
  17
  18 #define HP300_LEDS              0xf001ffff
  19
  20 extern unsigned char ledstate;
  21
  22 static __inline__ void blinken_leds(int on, int off)
  23 {
  24         if (MACH_IS_HP300)
  25         {
  26                 ledstate |= on;
  27                 ledstate &= ~off;
  28                 out_8(HP300_LEDS, ~ledstate);
  29         }
  30 }
  31
  32 #endif