forked from Imagelibrary/rtems
First cut at configuration table for libchip RTC. At this point, we
are pretending that the DMV177 has an M48T08.
This commit is contained in:
Joel Sherrill
@@ -4,7 +4,7 @@
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@SET_MAKE@
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@SET_MAKE@
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srcdir = @srcdir@
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srcdir = @srcdir@
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VPATH = @srcdir@
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VPATH = @srcdir@:@srcdir@/../../../shared
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RTEMS_ROOT = @top_srcdir@
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RTEMS_ROOT = @top_srcdir@
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PROJECT_ROOT = @PROJECT_ROOT@
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PROJECT_ROOT = @PROJECT_ROOT@
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58
c/src/lib/libbsp/powerpc/dmv177/tod/config.c
Normal file
58
c/src/lib/libbsp/powerpc/dmv177/tod/config.c
Normal file
@@ -0,0 +1,58 @@
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/*
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* This file contains the RTC driver table for the DY-4 DMV177.
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*
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* COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994, 1997.
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* On-Line Applications Research Corporation (OAR).
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* All rights assigned to U.S. Government, 1994.
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*
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* $Id$
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*/
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#include <bsp.h>
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#include <libchip/rtc.h>
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#include <libchip/m48t08.h>
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/*
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* Configuration specific probe routines
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*
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* NOTE: There are no DMV177 specific configuration routines. These
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|
* routines could be written to dynamically determine what type
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* of real-time clock is on this board. This would be useful for
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* a BSP supporting multiple board models.
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*/
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/* NONE CURRENTLY PROVIDED */
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/*
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* The following table configures the RTC drivers used in this BSP.
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*
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* The first entry which, when probed, is available, will be named /dev/rtc,
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* all others being given the name indicated.
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*/
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rtc_tbl RTC_Table[] = {
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{
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"/dev/rtc0", /* sDeviceName */
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RTC_M48T08, /* deviceType */
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MC68681_FUNCTIONS, /* pDeviceFns */
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rtc_probe, /* deviceProbe */
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NULL, /* pDeviceParams */
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DMV170_RTC_ADDRESS, /* ulCtrlPort1 */
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NULL, /* ulCtrlPort2 */
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NULL, /* ulDataPort */
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m48t08_get_register, /* getRegister */
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m48t08_set_register, /* setRegister */
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NULL, /* unused */ /* setData */
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}
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};
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/*
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* Declare some information used by the RTC driver
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*/
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#define NUM_RTCS (sizeof(RTC_Table)/sizeof(rtc_tbl))
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unsigned long RTC_Count = NUM_RTCS;
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rtems_device_minor_number RTC_Minor;
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@@ -1,274 +0,0 @@
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/*
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* Real Time Clock (Harris ICM7170) for RTEMS
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*
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* This part is found on the second generation of this board.
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.OARcorp.com/rtems/license.html.
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*
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* $Id$
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*/
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#include <rtems.h>
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#include <tod.h>
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#include <bsp.h>
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/*
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* These values are programed into a register and must not be changed.
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*/
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#define ICM1770_CRYSTAL_FREQ_32K 0x00
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#define ICM1770_CRYSTAL_FREQ_1M 0x01
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#define ICM1770_CRYSTAL_FREQ_2M 0x02
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#define ICM1770_CRYSTAL_FREQ_4M 0x03
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void ICM7170_GetTOD(
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volatile unsigned char *imc1770_regs,
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rtems_unsigned8 icm1770_freq,
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rtems_time_of_day *rtc_tod
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);
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void ICM7170_SetTOD(
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volatile unsigned char *imc1770_regs,
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rtems_unsigned8 icm1770_freq,
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rtems_time_of_day *rtc_tod
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);
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/*
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* This code is dependent on the boards use of the ICM7170 RTC/NVRAM
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* and should remain in this file.
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*/
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/* PAGE
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*
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* This routine copies the time from the real time clock to RTEMS
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*
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* Input parameters: NONE
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*
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* Output parameters: NONE
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*
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* Return values: NONE
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*/
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void setRealTimeToRTEMS()
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{
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rtems_time_of_day rtc_tod;
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ICM7170_GetTOD( DMV170_RTC_ADDRESS, DMV170_RTC_FREQUENCY, &rtc_tod );
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rtems_clock_set( &rtc_tod );
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}
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/* PAGE
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*
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* setRealTimeFromRTEMS
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*
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* This routine copies the time from RTEMS to the real time clock
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*
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* Input parameters: NONE
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*
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* Output parameters: NONE
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*
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* Return values: NONE
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*/
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void setRealTimeFromRTEMS()
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{
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rtems_time_of_day rtems_tod;
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rtems_clock_get( RTEMS_CLOCK_GET_TOD, &rtems_tod );
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ICM7170_SetTOD( DMV170_RTC_ADDRESS, DMV170_RTC_FREQUENCY, &rtems_tod );
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}
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/* PAGE
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*
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* checkRealTime
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*
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* This routine reads the returns the variance betweent the real time and
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* rtems time.
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*
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* Input parameters: NONE
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*
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* Output parameters: NONE
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*
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* Return values:
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* int The differance between the real time clock and rtems time or
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* 9999 in the event of an error.
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*/
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int checkRealTime()
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{
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rtems_time_of_day rtems_tod;
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rtems_time_of_day rtc_tod;
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ICM7170_GetTOD( DMV170_RTC_ADDRESS, DMV170_RTC_FREQUENCY, &rtc_tod );
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rtems_clock_get( RTEMS_CLOCK_GET_TOD, &rtems_tod );
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if( rtems_tod.year == rtc_tod.year &&
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rtems_tod.month == rtc_tod.month &&
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rtems_tod.day == rtc_tod.day ) {
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return ((rtems_tod.hour - rtc_tod.hour) * 3600) +
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((rtems_tod.minute - rtc_tod.minute) * 60) +
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(rtems_tod.second - rtc_tod.second);
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}
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return 9999;
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}
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/*
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* These routines are ICM7170 should be in
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* a separate support library. When the chiplib
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* is created for RTEMS these routines will be moved.
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*/
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/* PAGE
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*
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* ICM7170_GetField
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*
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* This routine gets a field
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*
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* Input parameters:
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* imc1770_regs - pointer to the register base address.
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* reg - register id
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*
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* Output parameters: NONE
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*
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* Return values: value of register
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*/
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static int ICM7170_GetField(
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volatile unsigned char *imc1770_regs,
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int reg
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)
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{
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unsigned char x;
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x = imc1770_regs[reg*4];
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return x;
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}
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/* PAGE
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*
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* ICM7170_SetField
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*
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* This routine sets a field
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*
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* Input parameters:
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* imc1770_regs - pointer to the register base address.
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* reg - register id
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* d - data to write
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*
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* Output parameters: NONE
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*
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* Return values: NONE
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*/
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static void ICM7170_SetField(
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volatile unsigned char *imc1770_regs,
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int reg,
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unsigned char d
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)
|
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{
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imc1770_regs[reg*4] = d;
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}
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|
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/* PAGE
|
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*
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* ICM7170_GetTOD
|
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*
|
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* This routine gets the real time clock time of day in rtems
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* time of day format.
|
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*
|
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* Input parameters:
|
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* imc1770_regs - pointer to the register base address.
|
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* icm1770_freq - oscillator frequency
|
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*
|
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* Output parameters:
|
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* rtc_tod - time of day by the real time clock
|
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*
|
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* Return values: NONE
|
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*/
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|
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void ICM7170_GetTOD(
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volatile unsigned char *imc1770_regs,
|
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rtems_unsigned8 icm1770_freq,
|
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rtems_time_of_day *rtc_tod
|
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||||||
)
|
|
||||||
{
|
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||||||
int year;
|
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int usec;
|
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||||||
static rtems_boolean init = TRUE;
|
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||||||
|
|
||||||
/* Initialize the clock at once prior to reading */
|
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||||||
if (init ) {
|
|
||||||
ICM7170_SetField( imc1770_regs, 0x11, (0x0c | icm1770_freq) );
|
|
||||||
init = FALSE;
|
|
||||||
}
|
|
||||||
|
|
||||||
usec = ICM7170_GetField( imc1770_regs, 0x00 );
|
|
||||||
|
|
||||||
year = ICM7170_GetField( imc1770_regs, 0x06 );
|
|
||||||
if ( year >= 88 )
|
|
||||||
year += 1900;
|
|
||||||
else
|
|
||||||
year += 2000;
|
|
||||||
|
|
||||||
rtc_tod->year = year;
|
|
||||||
rtc_tod->month = ICM7170_GetField( imc1770_regs, 0x04 );
|
|
||||||
rtc_tod->day = ICM7170_GetField( imc1770_regs, 0x05 );
|
|
||||||
rtc_tod->hour = ICM7170_GetField( imc1770_regs, 0x01 );
|
|
||||||
rtc_tod->minute = ICM7170_GetField( imc1770_regs, 0x02 );
|
|
||||||
rtc_tod->second = ICM7170_GetField( imc1770_regs, 0x03 );
|
|
||||||
rtc_tod->ticks = ICM7170_GetField( imc1770_regs, 0x00 );
|
|
||||||
}
|
|
||||||
|
|
||||||
/* PAGE
|
|
||||||
*
|
|
||||||
* ICM7170_SetTOD
|
|
||||||
*
|
|
||||||
* This routine sets the real time clock
|
|
||||||
*
|
|
||||||
* Input parameters:
|
|
||||||
* imc1770_regs - pointer to the register base address.
|
|
||||||
* icm1770_freq - oscillator frequency
|
|
||||||
* rtc_tod - time of day to set
|
|
||||||
*
|
|
||||||
* Output parameters:
|
|
||||||
*
|
|
||||||
* Return values:
|
|
||||||
*/
|
|
||||||
|
|
||||||
void ICM7170_SetTOD(
|
|
||||||
volatile unsigned char *imc1770_regs,
|
|
||||||
rtems_unsigned8 icm1770_freq,
|
|
||||||
rtems_time_of_day *rtc_tod
|
|
||||||
)
|
|
||||||
{
|
|
||||||
int year;
|
|
||||||
|
|
||||||
year = rtc_tod->year;
|
|
||||||
if ( year >= 2088 ) /* plan ahead :) */
|
|
||||||
rtems_fatal_error_occurred( 0xBAD0BAD0 );
|
|
||||||
|
|
||||||
if ( year >= 2000 )
|
|
||||||
year -= 2000;
|
|
||||||
else
|
|
||||||
year -= 1900;
|
|
||||||
|
|
||||||
ICM7170_SetField( imc1770_regs, 0x11, (0x04 |icm1770_freq ) );
|
|
||||||
|
|
||||||
ICM7170_SetField( imc1770_regs, 0x06, year );
|
|
||||||
ICM7170_SetField( imc1770_regs, 0x04, rtc_tod->month );
|
|
||||||
ICM7170_SetField( imc1770_regs, 0x05, rtc_tod->day );
|
|
||||||
ICM7170_SetField( imc1770_regs, 0x01, rtc_tod->hour );
|
|
||||||
ICM7170_SetField( imc1770_regs, 0x02, rtc_tod->minute );
|
|
||||||
ICM7170_SetField( imc1770_regs, 0x03, rtc_tod->second );
|
|
||||||
|
|
||||||
/*
|
|
||||||
* I don't know which day of week is
|
|
||||||
*
|
|
||||||
*/
|
|
||||||
ICM7170_SetField( imc1770_regs, 0x07, 1 );
|
|
||||||
|
|
||||||
ICM7170_SetField( imc1770_regs, 0x11, (0x0c | icm1770_freq) );
|
|
||||||
}
|
|
||||||
|
|
||||||
58
c/src/lib/libbsp/powerpc/dmv177/tod/todcfg.c
Normal file
58
c/src/lib/libbsp/powerpc/dmv177/tod/todcfg.c
Normal file
@@ -0,0 +1,58 @@
|
|||||||
|
/*
|
||||||
|
* This file contains the RTC driver table for the DY-4 DMV177.
|
||||||
|
*
|
||||||
|
* COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994, 1997.
|
||||||
|
* On-Line Applications Research Corporation (OAR).
|
||||||
|
* All rights assigned to U.S. Government, 1994.
|
||||||
|
*
|
||||||
|
* $Id$
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include <bsp.h>
|
||||||
|
|
||||||
|
#include <libchip/rtc.h>
|
||||||
|
#include <libchip/m48t08.h>
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Configuration specific probe routines
|
||||||
|
*
|
||||||
|
* NOTE: There are no DMV177 specific configuration routines. These
|
||||||
|
* routines could be written to dynamically determine what type
|
||||||
|
* of real-time clock is on this board. This would be useful for
|
||||||
|
* a BSP supporting multiple board models.
|
||||||
|
*/
|
||||||
|
|
||||||
|
/* NONE CURRENTLY PROVIDED */
|
||||||
|
|
||||||
|
/*
|
||||||
|
* The following table configures the RTC drivers used in this BSP.
|
||||||
|
*
|
||||||
|
* The first entry which, when probed, is available, will be named /dev/rtc,
|
||||||
|
* all others being given the name indicated.
|
||||||
|
*/
|
||||||
|
|
||||||
|
rtc_tbl RTC_Table[] = {
|
||||||
|
{
|
||||||
|
"/dev/rtc0", /* sDeviceName */
|
||||||
|
RTC_M48T08, /* deviceType */
|
||||||
|
MC68681_FUNCTIONS, /* pDeviceFns */
|
||||||
|
rtc_probe, /* deviceProbe */
|
||||||
|
NULL, /* pDeviceParams */
|
||||||
|
DMV170_RTC_ADDRESS, /* ulCtrlPort1 */
|
||||||
|
NULL, /* ulCtrlPort2 */
|
||||||
|
NULL, /* ulDataPort */
|
||||||
|
m48t08_get_register, /* getRegister */
|
||||||
|
m48t08_set_register, /* setRegister */
|
||||||
|
NULL, /* unused */ /* setData */
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Declare some information used by the RTC driver
|
||||||
|
*/
|
||||||
|
|
||||||
|
#define NUM_RTCS (sizeof(RTC_Table)/sizeof(rtc_tbl))
|
||||||
|
|
||||||
|
unsigned long RTC_Count = NUM_RTCS;
|
||||||
|
|
||||||
|
rtems_device_minor_number RTC_Minor;
|
||||||
Reference in New Issue
Block a user