arch/m68k/include/asm/intersil.h

   1 #ifndef _SUN3_INTERSIL_H
   2 #define _SUN3_INTERSIL_H
   3 /* bits 0 and 1 */
   4 #define INTERSIL_FREQ_32K        0x00
   5 #define INTERSIL_FREQ_1M         0x01
   6 #define INTERSIL_FREQ_2M         0x02
   7 #define INTERSIL_FREQ_4M         0x03
   8
   9 /* bit 2 */
  10 #define INTERSIL_12H_MODE   0x00
  11 #define INTERSIL_24H_MODE   0x04
  12
  13 /* bit 3 */
  14 #define INTERSIL_STOP            0x00
  15 #define INTERSIL_RUN             0x08
  16
  17 /* bit 4 */
  18 #define INTERSIL_INT_ENABLE     0x10
  19 #define INTERSIL_INT_DISABLE    0x00
  20
  21 /* bit 5 */
  22 #define INTERSIL_MODE_NORMAL     0x00
  23 #define INTERSIL_MODE_TEST       0x20
  24
  25 #define INTERSIL_HZ_100_MASK     0x02
  26
  27 struct intersil_dt {
  28         unsigned char   csec;
  29         unsigned char   hour;
  30         unsigned char   minute;
  31         unsigned char   second;
  32         unsigned char   month;
  33         unsigned char   day;
  34         unsigned char   year;
  35         unsigned char   weekday;
  36 };
  37
  38 struct intersil_7170 {
  39         struct intersil_dt counter;
  40         struct intersil_dt alarm;
  41         unsigned char   int_reg;
  42         unsigned char   cmd_reg;
  43 };
  44
  45 extern volatile char* clock_va;
  46 #define intersil_clock ((volatile struct intersil_7170 *) clock_va)
  47 #define intersil_clear() (void)intersil_clock->int_reg
  48 #endif