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49 lines
1.1 KiB
49 lines
1.1 KiB
/* 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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