diff options
Diffstat (limited to 'c/src/lib/libchip/rtc/icm7170.c')
| -rw-r--r-- | c/src/lib/libchip/rtc/icm7170.c | 176 |
1 files changed, 0 insertions, 176 deletions
diff --git a/c/src/lib/libchip/rtc/icm7170.c b/c/src/lib/libchip/rtc/icm7170.c deleted file mode 100644 index f3cf513d2e..0000000000 --- a/c/src/lib/libchip/rtc/icm7170.c +++ /dev/null @@ -1,176 +0,0 @@ -/* - * This file interfaces with the real-time clock found in - * a Harris ICM7170 - * - * Year 2K Notes: - * - * This chip only uses a two digit field to store the year. This - * code uses the RTEMS Epoch as a pivot year. This lets us map the - * two digit year field as follows: - * - * + two digit years 0-87 are mapped to 2000-2087. - * + two digit years 88-99 are mapped to 1988-1999. - * - * This is less than the time span supported by RTEMS. - * - * COPYRIGHT (c) 1989-1998. - * On-Line Applications Research Corporation (OAR). - * Copyright assigned to U.S. Government, 1994. - * - * The license and distribution terms for this file may be - * found in the file LICENSE in this distribution or at - * http://www.OARcorp.com/rtems/license.html. - * - * $Id$ - */ - -#include <rtems.h> -#include <libchip/rtc.h> -#include <libchip/icm7170.h> - -/* - * Control register bits - */ - -/* XXX */ - -/* - * icm7170_initialize - */ - -void icm7170_initialize( - int minor -) -{ - unsigned32 icm7170; - setRegister_f setReg; - unsigned32 clock; - - icm7170 = RTC_Table[ minor ].ulCtrlPort1; - setReg = RTC_Table[ minor ].setRegister; - - /* - * Initialize the RTC with the proper clock frequency - */ - - clock = (unsigned32) RTC_Table[ minor ].pDeviceParams; - (*setReg)( icm7170, ICM7170_CONTROL, 0x0c | clock ); -} - -/* - * icm7170_get_time - */ - -int icm7170_get_time( - int minor, - rtems_time_of_day *time -) -{ - unsigned32 icm7170; - getRegister_f getReg; - setRegister_f setReg; - unsigned32 year; - - icm7170 = RTC_Table[ minor ].ulCtrlPort1; - getReg = RTC_Table[ minor ].getRegister; - setReg = RTC_Table[ minor ].setRegister; - - /* - * Put the RTC into read mode - */ - - (void) (*getReg)( icm7170, ICM7170_COUNTER_HUNDREDTHS ); - - /* - * Now get the time - */ - - - year = (*getReg)( icm7170, ICM7170_YEAR ); - if ( year < 88 ) - year += 2000; - else - year += 1900; - - time->year = year; - time->month = (*getReg)( icm7170, ICM7170_MONTH ); - time->day = (*getReg)( icm7170, ICM7170_DATE ); - time->hour = (*getReg)( icm7170, ICM7170_HOUR ); - time->minute = (*getReg)( icm7170, ICM7170_MINUTE ); - time->second = (*getReg)( icm7170, ICM7170_SECOND ); - - time->ticks = 0; - - /* - * Put the RTC back into normal mode. - */ - - (void) (*getReg)( icm7170, ICM7170_COUNTER_HUNDREDTHS ); - - return 0; -} - -/* - * icm7170_set_time - */ - -int icm7170_set_time( - int minor, - rtems_time_of_day *time -) -{ - unsigned32 icm7170; - getRegister_f getReg; - setRegister_f setReg; - unsigned32 year; - unsigned32 clock; - - icm7170 = RTC_Table[ minor ].ulCtrlPort1; - getReg = RTC_Table[ minor ].getRegister; - setReg = RTC_Table[ minor ].setRegister; - clock = (unsigned32) RTC_Table[ minor ].pDeviceParams; - - year = time->year; - - if ( year >= 2088 ) - rtems_fatal_error_occurred( RTEMS_INVALID_NUMBER ); - - if ( year >= 2000 ) - year -= 2000; - else - year -= 1900; - - (*setReg)( icm7170, ICM7170_CONTROL, 0x04 | clock ); - - (*setReg)( icm7170, ICM7170_YEAR, year ); - (*setReg)( icm7170, ICM7170_MONTH, time->month ); - (*setReg)( icm7170, ICM7170_DATE, time->day ); - (*setReg)( icm7170, ICM7170_HOUR, time->hour ); - (*setReg)( icm7170, ICM7170_MINUTE, time->minute ); - (*setReg)( icm7170, ICM7170_SECOND, time->second ); - - /* - * This is not really right. - */ - - (*setReg)( icm7170, ICM7170_DAY_OF_WEEK, 1 ); - - /* - * Put the RTC back into normal mode. - */ - - (*setReg)( icm7170, ICM7170_CONTROL, 0x0c | clock ); - - return 0; -} - -/* - * Driver function table - */ - -rtc_fns icm7170_fns = { - icm7170_initialize, - icm7170_get_time, - icm7170_set_time -}; - |