m48t35.h
上传用户:jlfgdled
上传日期:2013-04-10
资源大小:33168k
文件大小:3k
- /*
- * BK Id: SCCS/s.m48t35.h 1.8 10/16/01 15:58:42 trini
- */
- /*
- * Registers for the SGS-Thomson M48T35 Timekeeper RAM chip
- * and
- * Registers for the SGS-Thomson M48T37 Timekeeper RAM chip
- * The 37 is the 35 plus alarm and century thus the offsets
- * are shifted by the extra registers.
- */
- #ifndef __PPC_M48T35_H
- #define __PPC_M48T35_H
- /* RTC offsets */
- #define M48T35_RTC_FLAGS (-8) /* the negative regs are really T37 only */
- #define M48T35_RTC_CENTURY (-7)
- #define M48T35_RTC_AL_SEC (-6)
- #define M48T35_RTC_AL_MIN (-5)
- #define M48T35_RTC_AL_HRS (-4)
- #define M48T35_RTC_AL_DOM (-3)
- #define M48T35_RTC_INTERRUPT (-2)
- #define M48T35_RTC_WATCHDOG (-1)
- #define M48T35_RTC_CONTROL 0 /* T35 starts here */
- #define M48T35_RTC_SECONDS 1
- #define M48T35_RTC_MINUTES 2
- #define M48T35_RTC_HOURS 3
- #define M48T35_RTC_DAY 4
- #define M48T35_RTC_DOM 5
- #define M48T35_RTC_MONTH 6
- #define M48T35_RTC_YEAR 7
- /* this way help us know which bits go with which regs */
- #define M48T35_RTC_FLAGS_BL 0x10
- #define M48T35_RTC_FLAGS_AF 0x40
- #define M48T35_RTC_FLAGS_WDF 0x80
- #define M48T35_RTC_INTERRUPT_AFE 0x80
- #define M48T35_RTC_INTERRUPT_ABE 0x20
- #define M48T35_RTC_INTERRUPT_ALL (M48T35_RTC_INTERRUPT_AFE|M48T35_RTC_INTERRUPT_ABE)
- #define M48T35_RTC_WATCHDOG_RB 0x03
- #define M48T35_RTC_WATCHDOG_BMB 0x7c
- #define M48T35_RTC_WATCHDOG_WDS 0x80
- #define M48T35_RTC_WATCHDOG_ALL (M48T35_RTC_WATCHDOG_RB|M48T35_RTC_WATCHDOG_BMB|M48T35_RTC_W
- #define M48T35_RTC_CONTROL_WRITE 0x80
- #define M48T35_RTC_CONTROL_READ 0x40
- #define M48T35_RTC_CONTROL_CAL_SIGN 0x20
- #define M48T35_RTC_CONTROL_CAL_VALUE 0x1f
- #define M48T35_RTC_CONTROL_LOCKED (M48T35_RTC_WRITE|M48T35_RTC_READ)
- #define M48T35_RTC_CONTROL_CALIBRATION (M48T35_RTC_CONTROL_CAL_SIGN|M48T35_RTC_CONTROL_CAL_VALUE)
- #define M48T35_RTC_SECONDS_SEC_1 0x0f
- #define M48T35_RTC_SECONDS_SEC_10 0x70
- #define M48T35_RTC_SECONDS_ST 0x80
- #define M48T35_RTC_SECONDS_SEC_ALL (M48T35_RTC_SECONDS_SEC_1|M48T35_RTC_SECONDS_SEC_10)
- #define M48T35_RTC_MINUTES_MIN_1 0x0f
- #define M48T35_RTC_MINUTES_MIN_10 0x70
- #define M48T35_RTC_MINUTES_MIN_ALL (M48T35_RTC_MINUTES_MIN_1|M48T35_RTC_MINUTES_MIN_10)
- #define M48T35_RTC_HOURS_HRS_1 0x0f
- #define M48T35_RTC_HOURS_HRS_10 0x30
- #define M48T35_RTC_HOURS_HRS_ALL (M48T35_RTC_HOURS_HRS_1|M48T35_RTC_HOURS_HRS_10)
- #define M48T35_RTC_DAY_DAY_1 0x03
- #define M48T35_RTC_DAY_FT 0x40
- #define M48T35_RTC_ALARM_OFF 0x00
- #define M48T35_RTC_WATCHDOG_OFF 0x00
- /* legacy */
- #define M48T35_RTC_SET 0x80
- #define M48T35_RTC_STOPPED 0x80
- #define M48T35_RTC_READ 0x40
- /* read/write conversions */
- #ifndef BCD_TO_BIN
- #define BCD_TO_BIN(x) ((x)=((x)&15) + ((x)>>4)*10)
- #endif
- #ifndef BIN_TO_BCD
- #define BIN_TO_BCD(x) ((x)=(((x)/10)<<4) + (x)%10)
- #endif
- #endif