50 lines
1.1 KiB
C
50 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _SUN3_INTERSIL_H
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#define _SUN3_INTERSIL_H
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/* bits 0 and 1 */
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#define INTERSIL_FREQ_32K 0x00
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#define INTERSIL_FREQ_1M 0x01
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#define INTERSIL_FREQ_2M 0x02
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#define INTERSIL_FREQ_4M 0x03
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/* bit 2 */
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#define INTERSIL_12H_MODE 0x00
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#define INTERSIL_24H_MODE 0x04
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/* bit 3 */
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#define INTERSIL_STOP 0x00
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#define INTERSIL_RUN 0x08
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/* bit 4 */
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#define INTERSIL_INT_ENABLE 0x10
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#define INTERSIL_INT_DISABLE 0x00
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/* bit 5 */
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#define INTERSIL_MODE_NORMAL 0x00
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#define INTERSIL_MODE_TEST 0x20
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#define INTERSIL_HZ_100_MASK 0x02
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struct intersil_dt {
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unsigned char csec;
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unsigned char hour;
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unsigned char minute;
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unsigned char second;
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unsigned char month;
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unsigned char day;
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unsigned char year;
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unsigned char weekday;
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};
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struct intersil_7170 {
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struct intersil_dt counter;
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struct intersil_dt alarm;
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unsigned char int_reg;
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unsigned char cmd_reg;
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};
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extern volatile char* clock_va;
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#define intersil_clock ((volatile struct intersil_7170 *) clock_va)
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#define intersil_clear() (void)intersil_clock->int_reg
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#endif
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