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