arch/mips/lasat/ds1603.h

   1 /*
   2  * Dallas Semiconductors 1603 RTC driver
   3  *
   4  * Brian Murphy <brian@murphy.dk>
   5  *
   6  */
   7 #ifndef __DS1603_H
   8 #define __DS1603_H
   9
  10 struct ds_defs {
  11         volatile u32 *reg;
  12         volatile u32 *data_reg;
  13         u32 rst;
  14         u32 clk;
  15         u32 data;
  16         u32 data_read_shift;
  17         char data_reversed;
  18         u32 huge_delay;
  19 };
  20
  21 extern struct ds_defs *ds1603;
  22
  23 unsigned long ds1603_read(void);
  24 int ds1603_set(unsigned long);
  25 void ds1603_set_trimmer(unsigned int);
  26 void ds1603_enable(void);
  27 void ds1603_disable(void);
  28 void ds1603_init(struct ds_defs *);
  29
  30 #define TRIMMER_DEFAULT 3
  31 #define TRIMMER_DISABLE_RTC 0
  32
  33 #endif