File: /usr/src/linux/include/asm-sparc/mc146818rtc.h

1     /*
2      * Machine dependent access functions for RTC registers.
3      */
4     #ifndef __ASM_SPARC_MC146818RTC_H
5     #define __ASM_SPARC_MC146818RTC_H
6     
7     #include <asm/io.h>
8     
9     #ifndef RTC_PORT
10     #define RTC_PORT(x)	(0x70 + (x))
11     #define RTC_ALWAYS_BCD	1	/* RTC operates in binary mode */
12     #endif
13     
14     /*
15      * The yet supported machines all access the RTC index register via
16      * an ISA port access but the way to access the date register differs ...
17      */
18     #define CMOS_READ(addr) ({ \
19     outb_p((addr),RTC_PORT(0)); \
20     inb_p(RTC_PORT(1)); \
21     })
22     #define CMOS_WRITE(val, addr) ({ \
23     outb_p((addr),RTC_PORT(0)); \
24     outb_p((val),RTC_PORT(1)); \
25     })
26     
27     #define RTC_IRQ 8
28     
29     #endif /* __ASM_SPARC_MC146818RTC_H */
30