33 lines
548 B
C
33 lines
548 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Dallas Semiconductors 1603 RTC driver
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*
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* Brian Murphy <brian@murphy.dk>
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*
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*/
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#ifndef __DS1603_H
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#define __DS1603_H
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struct ds_defs {
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volatile u32 *reg;
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volatile u32 *data_reg;
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u32 rst;
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u32 clk;
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u32 data;
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u32 data_read_shift;
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char data_reversed;
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u32 huge_delay;
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};
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extern struct ds_defs *ds1603;
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void ds1603_set_trimmer(unsigned int);
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void ds1603_enable(void);
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void ds1603_disable(void);
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void ds1603_init(struct ds_defs *);
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#define TRIMMER_DEFAULT 3
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#define TRIMMER_DISABLE_RTC 0
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#endif
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