1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
34 lines
576 B
C
34 lines
576 B
C
/*
|
|
* Dallas Semiconductors 1603 RTC driver
|
|
*
|
|
* Brian Murphy <brian@murphy.dk>
|
|
*
|
|
*/
|
|
#ifndef __DS1603_H
|
|
#define __DS1603_H
|
|
|
|
struct ds_defs {
|
|
volatile u32 *reg;
|
|
volatile u32 *data_reg;
|
|
u32 rst;
|
|
u32 clk;
|
|
u32 data;
|
|
u32 data_read_shift;
|
|
char data_reversed;
|
|
u32 huge_delay;
|
|
};
|
|
|
|
extern struct ds_defs *ds1603;
|
|
|
|
unsigned long ds1603_read(void);
|
|
int ds1603_set(unsigned long);
|
|
void ds1603_set_trimmer(unsigned int);
|
|
void ds1603_enable(void);
|
|
void ds1603_disable(void);
|
|
void ds1603_init(struct ds_defs *);
|
|
|
|
#define TRIMMER_DEFAULT 3
|
|
#define TRIMMER_DISABLE_RTC 0
|
|
|
|
#endif
|