/* RTCEMDEV.c Copyright (C) 2003 Philip Cummins, Paul C. Pratt You can redistribute this file and/or modify it under the terms of version 2 of the GNU General Public License as published by the Free Software Foundation. You should have received a copy of the license along with this file; see the file COPYING. This file is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the license for more details.*/ /* Real Time Clock EMulated DEVice Emulates the RTC found in the Mac Plus. This code adapted from "RTC.c" in vMac by Philip Cummins.*/ #ifndef AllFiles#include "SYSDEPNS.h"#include "MYOSGLUE.h"#include "ENDIANAC.h"#include "EMCONFIG.h"#include "GLOBGLUE.h"#endif /* define _RTC_Debug */#ifdef _RTC_Debug#include <stdio.h>#endif #include "RTCEMDEV.h" #define HaveXPRAM (CurEmMd >= kEmMd_Plus) /* ReportAbnormalID unused 0x0805 - 0x08FF*/ #if HaveXPRAM#define PARAMRAMSize 256#else#define PARAMRAMSize 20#endif #if HaveXPRAM#define Group1Base 0x10#define Group2Base 0x08#else#define Group1Base 0x00#define Group2Base 0x10#endif typedef struct{ /* RTC VIA Flags */ ui3b WrProtect; ui3b DataOut; ui3b DataNextOut; /* RTC Data */ ui3b ShiftData; ui3b Counter; ui3b Mode; ui3b SavedCmd;#if HaveXPRAM ui3b Sector;#endif /* RTC Registers */ ui3b Seconds_1[4]; ui3b PARAMRAM[PARAMRAMSize];} RTC_Ty; LOCALVAR RTC_Ty RTC; /* RTC Functions */ LOCALVAR ui5b LastRealDate; #ifndef RTCinitPRAM#define RTCinitPRAM 1#endif #ifndef TrackSpeed /* in 0..4 */#define TrackSpeed 0#endif #ifndef AlarmOn /* in 0..1 */#define AlarmOn 0#endif #ifndef DiskCacheSz /* in 1,2,3,4,6,8,12 *//* actual cache size is DiskCacheSz * 32k */#if (CurEmMd == kEmMd_II) || (CurEmMd == kEmMd_IIx)#define DiskCacheSz 1#else#define DiskCacheSz 4#endif#endif #ifndef StartUpDisk /* in 0..1 */#define StartUpDisk 0#endif #ifndef DiskCacheOn /* in 0..1 */#define DiskCacheOn 0#endif #ifndef MouseScalingOn /* in 0..1 */#define MouseScalingOn 0#endif #define prb_fontHi 0#define prb_fontLo 2#define prb_kbdPrintHi (AutoKeyRate + (AutoKeyThresh << 4))#define prb_kbdPrintLo 0#define prb_volClickHi (SpeakerVol + (TrackSpeed << 3) + (AlarmOn << 7))#define prb_volClickLo (CaretBlinkTime + (DoubleClickTime << 4))#define prb_miscHi DiskCacheSz#define prb_miscLo \ ((MenuBlink << 2) + (StartUpDisk << 4) \ + (DiskCacheOn << 5) + (MouseScalingOn << 6)) #if dbglog_HAVE && 0EXPORTPROC DumpRTC(void); GLOBALPROC DumpRTC(void){ int Counter; dbglog_writeln("RTC Parameter RAM"); for (Counter = 0; Counter < PARAMRAMSize; Counter++) { dbglog_writeNum(Counter); dbglog_writeCStr(", "); dbglog_writeHex(RTC.PARAMRAM[Counter]); dbglog_writeReturn(); }}#endif GLOBALFUNC blnr RTC_Init(void){ int Counter; ui5b secs; RTC.Mode = RTC.ShiftData = RTC.Counter = 0; RTC.DataOut = RTC.DataNextOut = 0; RTC.WrProtect = falseblnr; secs = CurMacDateInSeconds; LastRealDate = secs; RTC.Seconds_1[0] = secs & 0xFF; RTC.Seconds_1[1] = (secs & 0xFF00) >> 8; RTC.Seconds_1[2] = (secs & 0xFF0000) >> 16; RTC.Seconds_1[3] = (secs & 0xFF000000) >> 24; for (Counter = 0; Counter < PARAMRAMSize; Counter++) { RTC.PARAMRAM[Counter] = 0; } #if RTCinitPRAM RTC.PARAMRAM[0 + Group1Base] = 168; /* valid */#if (CurEmMd == kEmMd_II) || (CurEmMd == kEmMd_IIx) RTC.PARAMRAM[2 + Group1Base] = 1; /* node id hint for printer port (AppleTalk) */#endif RTC.PARAMRAM[3 + Group1Base] = 34; /* serial ports config bits: 4-7 A, 0-3 B useFree 0 Use undefined useATalk 1 AppleTalk useAsync 2 Async useExtClk 3 externally clocked */ RTC.PARAMRAM[4 + Group1Base] = 204; /* portA, high */ RTC.PARAMRAM[5 + Group1Base] = 10; /* portA, low */ RTC.PARAMRAM[6 + Group1Base] = 204; /* portB, high */ RTC.PARAMRAM[7 + Group1Base] = 10; /* portB, low */ RTC.PARAMRAM[13 + Group1Base] = prb_fontLo; RTC.PARAMRAM[14 + Group1Base] = prb_kbdPrintHi;#if (CurEmMd == kEmMd_II) || (CurEmMd == kEmMd_IIx) RTC.PARAMRAM[15 + Group1Base] = 1; /* printer, if any, connected to modem port because printer port used for appletalk. */#endif #if prb_volClickHi != 0 RTC.PARAMRAM[0 + Group2Base] = prb_volClickHi;#endif RTC.PARAMRAM[1 + Group2Base] = prb_volClickLo; RTC.PARAMRAM[2 + Group2Base] = prb_miscHi; RTC.PARAMRAM[3 + Group2Base] = prb_miscLo#if 0 != vMacScreenDepth | 0x80#endif ; #if HaveXPRAM /* extended parameter ram initialized */#if (CurEmMd == kEmMd_II) || (CurEmMd == kEmMd_IIx) RTC.PARAMRAM[12] = 0x4e; RTC.PARAMRAM[13] = 0x75; RTC.PARAMRAM[14] = 0x4d; RTC.PARAMRAM[15] = 0x63;#else RTC.PARAMRAM[12] = 0x42; RTC.PARAMRAM[13] = 0x75; RTC.PARAMRAM[14] = 0x67; RTC.PARAMRAM[15] = 0x73;#endif#endif #if ((CurEmMd >= kEmMd_SE) && (CurEmMd <= kEmMd_Classic)) \ || (CurEmMd == kEmMd_II) || (CurEmMd == kEmMd_IIx) RTC.PARAMRAM[0x01] = 0x80; RTC.PARAMRAM[0x02] = 0x4F;#endif#if (CurEmMd == kEmMd_II) || (CurEmMd == kEmMd_IIx) RTC.PARAMRAM[0x03] = 0x48; /* video board id */ RTC.PARAMRAM[0x46] = /* 0x42 */ 0x76; /* 'v' */ RTC.PARAMRAM[0x47] = /* 0x32 */ 0x4D; /* 'M' */ /* mode */#if (0 == vMacScreenDepth) || (vMacScreenDepth >= 4) RTC.PARAMRAM[0x48] = 0x80;#else RTC.PARAMRAM[0x48] = 0x81; /* 0x81 doesn't quite work right at boot */ /* no, it seems to work now (?) */ /* but only if depth <= 3 */#endif#endif #if (CurEmMd == kEmMd_II) || (CurEmMd == kEmMd_IIx) RTC.PARAMRAM[0x77] = 0x01;#endif #if ((CurEmMd >= kEmMd_SE) && (CurEmMd <= kEmMd_Classic)) \ || (CurEmMd == kEmMd_II) || (CurEmMd == kEmMd_IIx) /* start up disk (encoded how?) */ RTC.PARAMRAM[0x78] = 0x00; RTC.PARAMRAM[0x79] = 0x01; RTC.PARAMRAM[0x7A] = 0xFF; RTC.PARAMRAM[0x7B] = 0xFE;#endif #if (CurEmMd == kEmMd_II) || (CurEmMd == kEmMd_IIx) RTC.PARAMRAM[0x80] = 0x09; RTC.PARAMRAM[0x81] = 0x80;#endif #if (CurEmMd == kEmMd_II) || (CurEmMd == kEmMd_IIx) #define pr_HilColRedHi (pr_HilColRed >> 8)#if 0 != pr_HilColRedHi RTC.PARAMRAM[0x82] = pr_HilColRedHi;#endif#define pr_HilColRedLo (pr_HilColRed & 0xFF)#if 0 != pr_HilColRedLo RTC.PARAMRAM[0x83] = pr_HilColRedLo;#endif #define pr_HilColGreenHi (pr_HilColGreen >> 8)#if 0 != pr_HilColGreenHi RTC.PARAMRAM[0x84] = pr_HilColGreenHi;#endif#define pr_HilColGreenLo (pr_HilColGreen & 0xFF)#if 0 != pr_HilColGreenLo RTC.PARAMRAM[0x85] = pr_HilColGreenLo;#endif #define pr_HilColBlueHi (pr_HilColBlue >> 8)#if 0 != pr_HilColBlueHi RTC.PARAMRAM[0x86] = pr_HilColBlueHi;#endif#define pr_HilColBlueLo (pr_HilColBlue & 0xFF)#if 0 != pr_HilColBlueLo RTC.PARAMRAM[0x87] = pr_HilColBlueLo;#endif #endif /* (CurEmMd == kEmMd_II) || (CurEmMd == kEmMd_IIx) */ #if HaveXPRAM /* extended parameter ram initialized */ do_put_mem_long(&RTC.PARAMRAM[0xE4], CurMacLatitude); do_put_mem_long(&RTC.PARAMRAM[0xE8], CurMacLongitude); do_put_mem_long(&RTC.PARAMRAM[0xEC], CurMacDelta);#endif #endif /* RTCinitPRAM */ return trueblnr;} #ifdef RTC_OneSecond_PulseNtfyIMPORTPROC RTC_OneSecond_PulseNtfy(void);#endif GLOBALPROC RTC_Interrupt(void){ ui5b Seconds = 0; ui5b NewRealDate = CurMacDateInSeconds; ui5b DateDelta = NewRealDate - LastRealDate; if (DateDelta != 0) { Seconds = (RTC.Seconds_1[3] << 24) + (RTC.Seconds_1[2] << 16) + (RTC.Seconds_1[1] << 8) + RTC.Seconds_1[0]; Seconds += DateDelta; RTC.Seconds_1[0] = Seconds & 0xFF; RTC.Seconds_1[1] = (Seconds & 0xFF00) >> 8; RTC.Seconds_1[2] = (Seconds & 0xFF0000) >> 16; RTC.Seconds_1[3] = (Seconds & 0xFF000000) >> 24; LastRealDate = NewRealDate; #ifdef RTC_OneSecond_PulseNtfy RTC_OneSecond_PulseNtfy();#endif }} LOCALFUNC ui3b RTC_Access_PRAM_Reg(ui3b Data, blnr WriteReg, ui3b t){ if (WriteReg) { if (! RTC.WrProtect) { RTC.PARAMRAM[t] = Data;#ifdef _RTC_Debug printf("Writing Address %2x, Data %2x\n", t, Data);#endif } } else { Data = RTC.PARAMRAM[t]; } return Data;} LOCALFUNC ui3b RTC_Access_Reg(ui3b Data, blnr WriteReg, ui3b TheCmd){ ui3b t = (TheCmd & 0x7C) >> 2; if (t < 8) { if (WriteReg) { if (! RTC.WrProtect) { RTC.Seconds_1[t & 0x03] = Data; } } else { Data = RTC.Seconds_1[t & 0x03]; } } else if (t < 12) { Data = RTC_Access_PRAM_Reg(Data, WriteReg, (t & 0x03) + Group2Base); } else if (t < 16) { if (WriteReg) { switch (t) { case 12 : break; /* Test Write, do nothing */ case 13 : RTC.WrProtect = (Data & 0x80) != 0; break; /* Write_Protect Register */ default : ReportAbnormalID(0x0801, "Write RTC Reg unknown"); break; } } else { ReportAbnormalID(0x0802, "Read RTC Reg unknown"); } } else { Data = RTC_Access_PRAM_Reg(Data, WriteReg, (t & 0x0F) + Group1Base); } return Data;} LOCALPROC RTC_DoCmd(void){ switch (RTC.Mode) { case 0: /* This Byte is a RTC Command */#if HaveXPRAM if ((RTC.ShiftData & 0x78) == 0x38) { /* Extended Command */ RTC.SavedCmd = RTC.ShiftData; RTC.Mode = 2;#ifdef _RTC_Debug printf("Extended command %2x\n", RTC.ShiftData);#endif } else#endif { if ((RTC.ShiftData & 0x80) != 0x00) { /* Read Command */ RTC.ShiftData = RTC_Access_Reg(0, falseblnr, RTC.ShiftData); RTC.DataNextOut = 1; } else { /* Write Command */ RTC.SavedCmd = RTC.ShiftData; RTC.Mode = 1; } } break; case 1: /* This Byte is data for RTC Write */ (void) RTC_Access_Reg(RTC.ShiftData, trueblnr, RTC.SavedCmd); RTC.Mode = 0; break;#if HaveXPRAM case 2: /* This Byte is rest of Extended RTC command address */#ifdef _RTC_Debug printf("Mode 2 %2x\n", RTC.ShiftData);#endif RTC.Sector = ((RTC.SavedCmd & 0x07) << 5) | ((RTC.ShiftData & 0x7C) >> 2); if ((RTC.SavedCmd & 0x80) != 0x00) { /* Read Command */ RTC.ShiftData = RTC.PARAMRAM[RTC.Sector]; RTC.DataNextOut = 1; RTC.Mode = 0;#ifdef _RTC_Debug printf("Reading X Address %2x, Data %2x\n", RTC.Sector, RTC.ShiftData);#endif } else { RTC.Mode = 3;#ifdef _RTC_Debug printf("Writing X Address %2x\n", RTC.Sector);#endif } break; case 3: /* This Byte is data for an Extended RTC Write */ (void) RTC_Access_PRAM_Reg(RTC.ShiftData, trueblnr, RTC.Sector); RTC.Mode = 0; break;#endif }} GLOBALPROC RTCunEnabled_ChangeNtfy(void){ if (RTCunEnabled) { /* abort anything going on */ if (RTC.Counter != 0) {#ifdef _RTC_Debug printf("aborting, %2x\n", RTC.Counter);#endif ReportAbnormalID(0x0803, "RTC aborting"); } RTC.Mode = 0; RTC.DataOut = 0; RTC.DataNextOut = 0; RTC.ShiftData = 0; RTC.Counter = 0; }} GLOBALPROC RTCclock_ChangeNtfy(void){ if (! RTCunEnabled) { if (RTCclock) { RTC.DataOut = RTC.DataNextOut; RTC.Counter = (RTC.Counter - 1) & 0x07; if (RTC.DataOut) { RTCdataLine = ((RTC.ShiftData >> RTC.Counter) & 0x01); /* should notify VIA if changed, so can check data direction */ if (RTC.Counter == 0) { RTC.DataNextOut = 0; } } else { RTC.ShiftData = (RTC.ShiftData << 1) | RTCdataLine; if (RTC.Counter == 0) { RTC_DoCmd(); } } } }} GLOBALPROC RTCdataLine_ChangeNtfy(void){#if dbglog_HAVE if (RTC.DataOut) { if (! RTC.DataNextOut) { /* ignore. The ROM doesn't read from the RTC the way described in the Hardware Reference. It reads the data after setting the clock to one instead of before, and then immediately changes the VIA direction. So the RTC has no way of knowing to stop driving the data line, which certainly can't really beLines 1–500 of 509. Load more
/* RTCEMDEV.c Copyright (C) 2003 Philip Cummins, Paul C. Pratt You can redistribute this file and/or modify it under the terms of version 2 of the GNU General Public License as published by the Free Software Foundation. You should have received a copy of the license along with this file; see the file COPYING. This file is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the license for more details. */ /* Real Time Clock EMulated DEVice Emulates the RTC found in the Mac Plus. This code adapted from "RTC.c" in vMac by Philip Cummins. */ #ifndef AllFiles #include "SYSDEPNS.h" #include "MYOSGLUE.h" #include "ENDIANAC.h" #include "EMCONFIG.h" #include "GLOBGLUE.h" #endif /* define _RTC_Debug */ #ifdef _RTC_Debug #include <stdio.h> #endif #include "RTCEMDEV.h" #define HaveXPRAM (CurEmMd >= kEmMd_Plus) /* ReportAbnormalID unused 0x0805 - 0x08FF */ #if HaveXPRAM #define PARAMRAMSize 256 #else #define PARAMRAMSize 20 #endif #if HaveXPRAM #define Group1Base 0x10 #define Group2Base 0x08 #else #define Group1Base 0x00 #define Group2Base 0x10 #endif typedef struct { /* RTC VIA Flags */ ui3b WrProtect; ui3b DataOut; ui3b DataNextOut; /* RTC Data */ ui3b ShiftData; ui3b Counter; ui3b Mode; ui3b SavedCmd; #if HaveXPRAM ui3b Sector; #endif /* RTC Registers */ ui3b Seconds_1[4]; ui3b PARAMRAM[PARAMRAMSize]; } RTC_Ty; LOCALVAR RTC_Ty RTC; /* RTC Functions */ LOCALVAR ui5b LastRealDate; #ifndef RTCinitPRAM #define RTCinitPRAM 1 #endif #ifndef TrackSpeed /* in 0..4 */ #define TrackSpeed 0 #endif #ifndef AlarmOn /* in 0..1 */ #define AlarmOn 0 #endif #ifndef DiskCacheSz /* in 1,2,3,4,6,8,12 */ /* actual cache size is DiskCacheSz * 32k */ #if (CurEmMd == kEmMd_II) || (CurEmMd == kEmMd_IIx) #define DiskCacheSz 1 #else #define DiskCacheSz 4 #endif #endif #ifndef StartUpDisk /* in 0..1 */ #define StartUpDisk 0 #endif #ifndef DiskCacheOn /* in 0..1 */ #define DiskCacheOn 0 #endif #ifndef MouseScalingOn /* in 0..1 */ #define MouseScalingOn 0 #endif #define prb_fontHi 0 #define prb_fontLo 2 #define prb_kbdPrintHi (AutoKeyRate + (AutoKeyThresh << 4)) #define prb_kbdPrintLo 0 #define prb_volClickHi (SpeakerVol + (TrackSpeed << 3) + (AlarmOn << 7)) #define prb_volClickLo (CaretBlinkTime + (DoubleClickTime << 4)) #define prb_miscHi DiskCacheSz #define prb_miscLo \ ((MenuBlink << 2) + (StartUpDisk << 4) \ + (DiskCacheOn << 5) + (MouseScalingOn << 6)) #if dbglog_HAVE && 0 EXPORTPROC DumpRTC(void); GLOBALPROC DumpRTC(void) { int Counter; dbglog_writeln("RTC Parameter RAM"); for (Counter = 0; Counter < PARAMRAMSize; Counter++) { dbglog_writeNum(Counter); dbglog_writeCStr(", "); dbglog_writeHex(RTC.PARAMRAM[Counter]); dbglog_writeReturn(); } } #endif GLOBALFUNC blnr RTC_Init(void) { int Counter; ui5b secs; RTC.Mode = RTC.ShiftData = RTC.Counter = 0; RTC.DataOut = RTC.DataNextOut = 0; RTC.WrProtect = falseblnr; secs = CurMacDateInSeconds; LastRealDate = secs; RTC.Seconds_1[0] = secs & 0xFF; RTC.Seconds_1[1] = (secs & 0xFF00) >> 8; RTC.Seconds_1[2] = (secs & 0xFF0000) >> 16; RTC.Seconds_1[3] = (secs & 0xFF000000) >> 24; for (Counter = 0; Counter < PARAMRAMSize; Counter++) { RTC.PARAMRAM[Counter] = 0; } #if RTCinitPRAM RTC.PARAMRAM[0 + Group1Base] = 168; /* valid */ #if (CurEmMd == kEmMd_II) || (CurEmMd == kEmMd_IIx) RTC.PARAMRAM[2 + Group1Base] = 1; /* node id hint for printer port (AppleTalk) */ #endif RTC.PARAMRAM[3 + Group1Base] = 34; /* serial ports config bits: 4-7 A, 0-3 B useFree 0 Use undefined useATalk 1 AppleTalk useAsync 2 Async useExtClk 3 externally clocked */ RTC.PARAMRAM[4 + Group1Base] = 204; /* portA, high */ RTC.PARAMRAM[5 + Group1Base] = 10; /* portA, low */ RTC.PARAMRAM[6 + Group1Base] = 204; /* portB, high */ RTC.PARAMRAM[7 + Group1Base] = 10; /* portB, low */ RTC.PARAMRAM[13 + Group1Base] = prb_fontLo; RTC.PARAMRAM[14 + Group1Base] = prb_kbdPrintHi; #if (CurEmMd == kEmMd_II) || (CurEmMd == kEmMd_IIx) RTC.PARAMRAM[15 + Group1Base] = 1; /* printer, if any, connected to modem port because printer port used for appletalk. */ #endif #if prb_volClickHi != 0 RTC.PARAMRAM[0 + Group2Base] = prb_volClickHi; #endif RTC.PARAMRAM[1 + Group2Base] = prb_volClickLo; RTC.PARAMRAM[2 + Group2Base] = prb_miscHi; RTC.PARAMRAM[3 + Group2Base] = prb_miscLo #if 0 != vMacScreenDepth | 0x80 #endif ; #if HaveXPRAM /* extended parameter ram initialized */ #if (CurEmMd == kEmMd_II) || (CurEmMd == kEmMd_IIx) RTC.PARAMRAM[12] = 0x4e; RTC.PARAMRAM[13] = 0x75; RTC.PARAMRAM[14] = 0x4d; RTC.PARAMRAM[15] = 0x63; #else RTC.PARAMRAM[12] = 0x42; RTC.PARAMRAM[13] = 0x75; RTC.PARAMRAM[14] = 0x67; RTC.PARAMRAM[15] = 0x73; #endif #endif #if ((CurEmMd >= kEmMd_SE) && (CurEmMd <= kEmMd_Classic)) \ || (CurEmMd == kEmMd_II) || (CurEmMd == kEmMd_IIx) RTC.PARAMRAM[0x01] = 0x80; RTC.PARAMRAM[0x02] = 0x4F; #endif #if (CurEmMd == kEmMd_II) || (CurEmMd == kEmMd_IIx) RTC.PARAMRAM[0x03] = 0x48; /* video board id */ RTC.PARAMRAM[0x46] = /* 0x42 */ 0x76; /* 'v' */ RTC.PARAMRAM[0x47] = /* 0x32 */ 0x4D; /* 'M' */ /* mode */ #if (0 == vMacScreenDepth) || (vMacScreenDepth >= 4) RTC.PARAMRAM[0x48] = 0x80; #else RTC.PARAMRAM[0x48] = 0x81; /* 0x81 doesn't quite work right at boot */ /* no, it seems to work now (?) */ /* but only if depth <= 3 */ #endif #endif #if (CurEmMd == kEmMd_II) || (CurEmMd == kEmMd_IIx) RTC.PARAMRAM[0x77] = 0x01; #endif #if ((CurEmMd >= kEmMd_SE) && (CurEmMd <= kEmMd_Classic)) \ || (CurEmMd == kEmMd_II) || (CurEmMd == kEmMd_IIx) /* start up disk (encoded how?) */ RTC.PARAMRAM[0x78] = 0x00; RTC.PARAMRAM[0x79] = 0x01; RTC.PARAMRAM[0x7A] = 0xFF; RTC.PARAMRAM[0x7B] = 0xFE; #endif #if (CurEmMd == kEmMd_II) || (CurEmMd == kEmMd_IIx) RTC.PARAMRAM[0x80] = 0x09; RTC.PARAMRAM[0x81] = 0x80; #endif #if (CurEmMd == kEmMd_II) || (CurEmMd == kEmMd_IIx) #define pr_HilColRedHi (pr_HilColRed >> 8) #if 0 != pr_HilColRedHi RTC.PARAMRAM[0x82] = pr_HilColRedHi; #endif #define pr_HilColRedLo (pr_HilColRed & 0xFF) #if 0 != pr_HilColRedLo RTC.PARAMRAM[0x83] = pr_HilColRedLo; #endif #define pr_HilColGreenHi (pr_HilColGreen >> 8) #if 0 != pr_HilColGreenHi RTC.PARAMRAM[0x84] = pr_HilColGreenHi; #endif #define pr_HilColGreenLo (pr_HilColGreen & 0xFF) #if 0 != pr_HilColGreenLo RTC.PARAMRAM[0x85] = pr_HilColGreenLo; #endif #define pr_HilColBlueHi (pr_HilColBlue >> 8) #if 0 != pr_HilColBlueHi RTC.PARAMRAM[0x86] = pr_HilColBlueHi; #endif #define pr_HilColBlueLo (pr_HilColBlue & 0xFF) #if 0 != pr_HilColBlueLo RTC.PARAMRAM[0x87] = pr_HilColBlueLo; #endif #endif /* (CurEmMd == kEmMd_II) || (CurEmMd == kEmMd_IIx) */ #if HaveXPRAM /* extended parameter ram initialized */ do_put_mem_long(&RTC.PARAMRAM[0xE4], CurMacLatitude); do_put_mem_long(&RTC.PARAMRAM[0xE8], CurMacLongitude); do_put_mem_long(&RTC.PARAMRAM[0xEC], CurMacDelta); #endif #endif /* RTCinitPRAM */ return trueblnr; } #ifdef RTC_OneSecond_PulseNtfy IMPORTPROC RTC_OneSecond_PulseNtfy(void); #endif GLOBALPROC RTC_Interrupt(void) { ui5b Seconds = 0; ui5b NewRealDate = CurMacDateInSeconds; ui5b DateDelta = NewRealDate - LastRealDate; if (DateDelta != 0) { Seconds = (RTC.Seconds_1[3] << 24) + (RTC.Seconds_1[2] << 16) + (RTC.Seconds_1[1] << 8) + RTC.Seconds_1[0]; Seconds += DateDelta; RTC.Seconds_1[0] = Seconds & 0xFF; RTC.Seconds_1[1] = (Seconds & 0xFF00) >> 8; RTC.Seconds_1[2] = (Seconds & 0xFF0000) >> 16; RTC.Seconds_1[3] = (Seconds & 0xFF000000) >> 24; LastRealDate = NewRealDate; #ifdef RTC_OneSecond_PulseNtfy RTC_OneSecond_PulseNtfy(); #endif } } LOCALFUNC ui3b RTC_Access_PRAM_Reg(ui3b Data, blnr WriteReg, ui3b t) { if (WriteReg) { if (! RTC.WrProtect) { RTC.PARAMRAM[t] = Data; #ifdef _RTC_Debug printf("Writing Address %2x, Data %2x\n", t, Data); #endif } } else { Data = RTC.PARAMRAM[t]; } return Data; } LOCALFUNC ui3b RTC_Access_Reg(ui3b Data, blnr WriteReg, ui3b TheCmd) { ui3b t = (TheCmd & 0x7C) >> 2; if (t < 8) { if (WriteReg) { if (! RTC.WrProtect) { RTC.Seconds_1[t & 0x03] = Data; } } else { Data = RTC.Seconds_1[t & 0x03]; } } else if (t < 12) { Data = RTC_Access_PRAM_Reg(Data, WriteReg, (t & 0x03) + Group2Base); } else if (t < 16) { if (WriteReg) { switch (t) { case 12 : break; /* Test Write, do nothing */ case 13 : RTC.WrProtect = (Data & 0x80) != 0; break; /* Write_Protect Register */ default : ReportAbnormalID(0x0801, "Write RTC Reg unknown"); break; } } else { ReportAbnormalID(0x0802, "Read RTC Reg unknown"); } } else { Data = RTC_Access_PRAM_Reg(Data, WriteReg, (t & 0x0F) + Group1Base); } return Data; } LOCALPROC RTC_DoCmd(void) { switch (RTC.Mode) { case 0: /* This Byte is a RTC Command */ #if HaveXPRAM if ((RTC.ShiftData & 0x78) == 0x38) { /* Extended Command */ RTC.SavedCmd = RTC.ShiftData; RTC.Mode = 2; #ifdef _RTC_Debug printf("Extended command %2x\n", RTC.ShiftData); #endif } else #endif { if ((RTC.ShiftData & 0x80) != 0x00) { /* Read Command */ RTC.ShiftData = RTC_Access_Reg(0, falseblnr, RTC.ShiftData); RTC.DataNextOut = 1; } else { /* Write Command */ RTC.SavedCmd = RTC.ShiftData; RTC.Mode = 1; } } break; case 1: /* This Byte is data for RTC Write */ (void) RTC_Access_Reg(RTC.ShiftData, trueblnr, RTC.SavedCmd); RTC.Mode = 0; break; #if HaveXPRAM case 2: /* This Byte is rest of Extended RTC command address */ #ifdef _RTC_Debug printf("Mode 2 %2x\n", RTC.ShiftData); #endif RTC.Sector = ((RTC.SavedCmd & 0x07) << 5) | ((RTC.ShiftData & 0x7C) >> 2); if ((RTC.SavedCmd & 0x80) != 0x00) { /* Read Command */ RTC.ShiftData = RTC.PARAMRAM[RTC.Sector]; RTC.DataNextOut = 1; RTC.Mode = 0; #ifdef _RTC_Debug printf("Reading X Address %2x, Data %2x\n", RTC.Sector, RTC.ShiftData); #endif } else { RTC.Mode = 3; #ifdef _RTC_Debug printf("Writing X Address %2x\n", RTC.Sector); #endif } break; case 3: /* This Byte is data for an Extended RTC Write */ (void) RTC_Access_PRAM_Reg(RTC.ShiftData, trueblnr, RTC.Sector); RTC.Mode = 0; break; #endif } } GLOBALPROC RTCunEnabled_ChangeNtfy(void) { if (RTCunEnabled) { /* abort anything going on */ if (RTC.Counter != 0) { #ifdef _RTC_Debug printf("aborting, %2x\n", RTC.Counter); #endif ReportAbnormalID(0x0803, "RTC aborting"); } RTC.Mode = 0; RTC.DataOut = 0; RTC.DataNextOut = 0; RTC.ShiftData = 0; RTC.Counter = 0; } } GLOBALPROC RTCclock_ChangeNtfy(void) { if (! RTCunEnabled) { if (RTCclock) { RTC.DataOut = RTC.DataNextOut; RTC.Counter = (RTC.Counter - 1) & 0x07; if (RTC.DataOut) { RTCdataLine = ((RTC.ShiftData >> RTC.Counter) & 0x01); /* should notify VIA if changed, so can check data direction */ if (RTC.Counter == 0) { RTC.DataNextOut = 0; } } else { RTC.ShiftData = (RTC.ShiftData << 1) | RTCdataLine; if (RTC.Counter == 0) { RTC_DoCmd(); } } } } } GLOBALPROC RTCdataLine_ChangeNtfy(void) { #if dbglog_HAVE if (RTC.DataOut) { if (! RTC.DataNextOut) { /* ignore. The ROM doesn't read from the RTC the way described in the Hardware Reference. It reads the data after setting the clock to one instead of before, and then immediately changes the VIA direction. So the RTC has no way of knowing to stop driving the data line, which certainly can't really be