arch/mips/lasat/ds1603.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * Dallas Semiconductors 1603 RTC driver
   4  *
   5  * Brian Murphy <brian@murphy.dk>
   6  *
   7  */
   8 #ifndef __DS1603_H
   9 #define __DS1603_H
  10
  11 struct ds_defs {
  12         volatile u32 *reg;
  13         volatile u32 *data_reg;
  14         u32 rst;
  15         u32 clk;
  16         u32 data;
  17         u32 data_read_shift;
  18         char data_reversed;
  19         u32 huge_delay;
  20 };
  21
  22 extern struct ds_defs *ds1603;
  23
  24 void ds1603_set_trimmer(unsigned int);
  25 void ds1603_enable(void);
  26 void ds1603_disable(void);
  27 void ds1603_init(struct ds_defs *);
  28
  29 #define TRIMMER_DEFAULT 3
  30 #define TRIMMER_DISABLE_RTC 0
  31
  32 #endif