diff options
author | Ingo Molnar <mingo@elte.hu> | 2009-05-11 14:44:27 +0200 |
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committer | Ingo Molnar <mingo@elte.hu> | 2009-05-11 14:44:31 +0200 |
commit | 41fb454ebe6024f5c1e3b3cbc0abc0da762e7b51 (patch) | |
tree | 51c50bcb67a5039448ddfa1869d7948cab1217e9 /arch/m32r/include/asm/rtc.h | |
parent | 19c1a6f5764d787113fa323ffb18be7991208f82 (diff) | |
parent | 091bf7624d1c90cec9e578a18529f615213ff847 (diff) |
Merge commit 'v2.6.30-rc5' into core/iommu
Merge reason: core/iommu was on an .30-rc1 base,
update it to .30-rc5 to refresh.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/m32r/include/asm/rtc.h')
-rw-r--r-- | arch/m32r/include/asm/rtc.h | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/arch/m32r/include/asm/rtc.h b/arch/m32r/include/asm/rtc.h new file mode 100644 index 00000000000..0340633f3f4 --- /dev/null +++ b/arch/m32r/include/asm/rtc.h @@ -0,0 +1,65 @@ +#ifndef __RTC_H__ +#define __RTC_H__ + + /* Dallas DS1302 clock/calendar register numbers. */ +# define RTC_SECONDS 0 +# define RTC_MINUTES 1 +# define RTC_HOURS 2 +# define RTC_DAY_OF_MONTH 3 +# define RTC_MONTH 4 +# define RTC_WEEKDAY 5 +# define RTC_YEAR 6 +# define RTC_CONTROL 7 + + /* Bits in CONTROL register. */ +# define RTC_CONTROL_WRITEPROTECT 0x80 +# define RTC_TRICKLECHARGER 8 + + /* Bits in TRICKLECHARGER register TCS TCS TCS TCS DS DS RS RS. */ +# define RTC_TCR_PATTERN 0xA0 /* 1010xxxx */ +# define RTC_TCR_1DIOD 0x04 /* xxxx01xx */ +# define RTC_TCR_2DIOD 0x08 /* xxxx10xx */ +# define RTC_TCR_DISABLED 0x00 /* xxxxxx00 Disabled */ +# define RTC_TCR_2KOHM 0x01 /* xxxxxx01 2KOhm */ +# define RTC_TCR_4KOHM 0x02 /* xxxxxx10 4kOhm */ +# define RTC_TCR_8KOHM 0x03 /* xxxxxx11 8kOhm */ + +#ifdef CONFIG_DS1302 +extern unsigned char ds1302_readreg(int reg); +extern void ds1302_writereg(int reg, unsigned char val); +extern int ds1302_init(void); +# define CMOS_READ(x) ds1302_readreg(x) +# define CMOS_WRITE(val,reg) ds1302_writereg(reg,val) +# define RTC_INIT() ds1302_init() +#else + /* No RTC configured so we shouldn't try to access any. */ +# define CMOS_READ(x) 42 +# define CMOS_WRITE(x,y) +# define RTC_INIT() (-1) +#endif + +/* + * The struct used to pass data via the following ioctl. Similar to the + * struct tm in <time.h>, but it needs to be here so that the kernel + * source is self contained, allowing cross-compiles, etc. etc. + */ +struct rtc_time { + int tm_sec; + int tm_min; + int tm_hour; + int tm_mday; + int tm_mon; + int tm_year; + int tm_wday; + int tm_yday; + int tm_isdst; +}; + +/* ioctl() calls that are permitted to the /dev/rtc interface. */ +#define RTC_MAGIC 'p' +#define RTC_RD_TIME _IOR(RTC_MAGIC, 0x09, struct rtc_time) /* Read RTC time. */ +#define RTC_SET_TIME _IOW(RTC_MAGIC, 0x0a, struct rtc_time) /* Set RTC time. */ +#define RTC_SET_CHARGE _IOW(RTC_MAGIC, 0x0b, int) +#define RTC_MAX_IOCTL 0x0b + +#endif /* __RTC_H__ */ |