2018-09-15 16:15:39 +02:00
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/*
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2018-03-13 03:46:10 +01:00
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* VARCem Virtual ARchaeological Computer EMulator.
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* An emulator of (mostly) x86-based PC systems and devices,
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* using the ISA,EISA,VLB,MCA and PCI system buses, roughly
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* spanning the era between 1981 and 1995.
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*
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* This file is part of the VARCem Project.
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*
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* Definitions for the generic NVRAM/CMOS driver.
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*
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2020-03-25 00:46:02 +02:00
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*
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2018-03-13 03:46:10 +01:00
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*
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2018-08-04 01:36:49 +02:00
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* Author: Fred N. van Kempen, <decwiz@yahoo.com>,
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* David Hrdlička, <hrdlickadavid@outlook.com>
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2018-03-13 03:46:10 +01:00
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*
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2020-01-14 02:14:39 +01:00
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* Copyright 2017-2020 Fred N. van Kempen.
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* Copyright 2018-2020 David Hrdlička.
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2018-03-13 03:46:10 +01:00
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*
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* Redistribution and use in source and binary forms, with
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* or without modification, are permitted provided that the
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* following conditions are met:
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*
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* 1. Redistributions of source code must retain the entire
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* above notice, this list of conditions and the following
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* disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the
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* following disclaimer in the documentation and/or other
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* materials provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names
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* of its contributors may be used to endorse or promote
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* products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef EMU_NVR_H
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# define EMU_NVR_H
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2020-04-10 22:32:03 +02:00
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#define NVR_MAXSIZE 512 /* max size of NVR data */
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2018-03-13 03:46:10 +01:00
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/* Conversion from BCD to Binary and vice versa. */
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#define RTC_BCD(x) (((x) % 10) | (((x) / 10) << 4))
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#define RTC_DCB(x) ((((x) & 0xf0) >> 4) * 10 + ((x) & 0x0f))
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#define RTC_BCDINC(x,y) RTC_BCD(RTC_DCB(x) + y)
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2018-08-01 17:52:20 +02:00
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/* Time sync options */
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#define TIME_SYNC_DISABLED 0
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#define TIME_SYNC_ENABLED 1
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#define TIME_SYNC_UTC 2
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2018-03-13 03:46:10 +01:00
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/* Define a generic RTC/NVRAM device. */
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typedef struct _nvr_ {
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2018-04-25 23:51:13 +02:00
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wchar_t *fn; /* pathname of image file */
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uint16_t size; /* device configuration */
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2018-03-13 03:46:10 +01:00
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int8_t irq;
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2018-04-25 23:51:13 +02:00
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uint8_t onesec_cnt;
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Added the IBM 5161 ISA expansion for PC and XT;
Cleaned up the parallel port emulation, added IRQ support, and made enabling/disabling per port;
Added the Award 430NX and the Intel Classic/PCI (Alfredo, 420TX);
Finished the 586MC1;
Added 8087 emulation;
Moved Cyrix 6x86'es to the Dev branch;
Sanitized/cleaned up memregs.c/h and intel.c/h;
Split the chipsets from machines and sanitized Port 92 emulation;
Added support for the 15bpp mode to the Compaq ATI 28800;
Moved the MR 386DX and 486 machines to the Dev branch;
Ported the new dynamic recompiler from PCem, but it remains in Dev branch until after v2.00;
Ported the new timer code from PCem;
Cleaned up the CPU table of unused stuff and better optimized its structure;
Ported the Open-XT and Open-AT from VARCem, the Open-AT is in the Dev branch;
Ported the XT MFM controller rewrite and adding of more controllers (incl. two RLL ones), from VARCem;
Added the AHA-1540A and the BusTek BT-542B;
Moved the Sumo SCSI-AT to the Dev branch;
Minor IDE, FDC, and floppy drive code clean-ups;
Made NCR 5380/53C400-based cards' BIOS address configurable;
Got rid of the legacy romset variable;
Unified (video) buffer and buffer32 into one and make the unified buffer 32-bit;
Added the Amstead PPC512 per PCem patch by John Elliott;
Switched memory mapping granularity from 16k to 4k (less than 1k not possible due to internal pages);
Rewrote the CL-GD 54xx blitter, fixes Win-OS/2 on the 54x6 among other thing;
Added the Image Manager 1024 and Professional Graphics Controller per PCem patch by John Elliott and work done on VARCem;
Added Headland HT-216, GC-205 and Video 7 VGA 1024i emulation based on PCem commit;
Implemented the fuction keys for the Toshiba T1000/T1200/T3100 enhancement;
Amstrad MegaPC does now works correctly with non-internal graphics card;
The SLiRP code no longer casts a packed struct type to a non-packed struct type;
The Xi8088 and PB410a no longer hang on 86Box when PS/2 mouse is not present;
The S3 Virge on BeOS is no longer broken (was broken by build #1591);
OS/2 2.0 build 6.167 now sees key presses again;
Xi8088 now work on CGA again;
86F images converted from either the old or new variants of the HxC MFM format now work correctly;
Hardware interrupts with a vector of 0xFF are now handled correctly;
OPTi 495SX boards no longer incorrectly have 64 MB maximum RAM when 32 MB is correct;
Fixed VNC keyboard input bugs;
Fixed AT RTC periodic interrupt - Chicago 58s / 73f / 73g / 81 MIDI play no longer hangs with the build's own VTD driver;
Fixed mouse polling with internal mice - Amstrad and Olivetti mice now work correctly;
Triones ATAPI DMA driver now correctly reads a file at the end of a CD image with a sectors number not divisible by 4;
Compaq Portable now works with all graphics cards;
Fixed various MDSI Genius bugs;
Added segment limit checks and improved page fault checks for several CPU instructions - Memphis 15xx WINSETUP and Chicago 58s WINDISK.CPL no longer issue a GPF, and some S3 drivers that used to have glitches, now work correctly;
Further improved the 808x emulation, also fixes the noticably choppy sound when using 808x CPU's, also fixes #355;
OS/2 installer no logner locks up on splash screen on PS/2 Model 70 and 80, fixes #400.
Fixed several Amstead bugs, GEM no longer crashes on the Amstrad 1640, fixes #391.
Ported John Elliott's Amstrad fixes and improvement from PCem, and fixed the default language so it's correctly Engliish, fixes #278, fixes #389.
Fixed a minor IDE timing bug, fixes #388.
Fixed Toshiba T1000 RAM issues, fixes #379.
Fixed EGA/(S)VGA overscan border handling, fixes #378;
Got rid of the now long useless IDE channel 2 auto-removal, fixes #370;
Fixed the BIOS files used by the AMSTRAD PC1512, fixes #366;
Ported the Unicode CD image file name fix from VARCem, fixes #365;
Fixed high density floppy disks on the Xi8088, fixes #359;
Fixed some bugs in the Hercules emulation, fixes #346, fixes #358;
Fixed the SCSI hard disk mode sense pages, fixes #356;
Removed the AMI Unknown 386SX because of impossibility to identify the chipset, closes #349;
Fixed bugs in the serial mouse emulation, fixes #344;
Compiled 86Box binaries now include all the required .DLL's, fixes #341;
Made some combo boxes in the Settings dialog slightly wider, fixes #276.
2019-09-20 14:02:30 +02:00
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pc_timer_t onesec_time;
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2018-04-25 23:51:13 +02:00
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void *data; /* local data */
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2018-03-13 03:46:10 +01:00
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/* Hooks to device functions. */
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void (*reset)(struct _nvr_ *);
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void (*start)(struct _nvr_ *);
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void (*tick)(struct _nvr_ *);
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2018-09-15 16:15:39 +02:00
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void (*ven_save)(void);
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2018-04-25 23:51:13 +02:00
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uint8_t regs[NVR_MAXSIZE]; /* these are the registers */
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2018-03-13 03:46:10 +01:00
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} nvr_t;
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extern int nvr_dosave;
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2018-04-25 23:51:13 +02:00
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#ifdef EMU_DEVICE_H
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2018-07-15 01:41:53 +02:00
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extern const device_t at_nvr_old_device;
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2018-04-25 23:51:13 +02:00
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extern const device_t at_nvr_device;
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extern const device_t ps_nvr_device;
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extern const device_t amstrad_nvr_device;
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2018-10-06 01:48:21 +02:00
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extern const device_t ibmat_nvr_device;
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2020-02-29 19:12:23 +01:00
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extern const device_t piix4_nvr_device;
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2020-01-20 04:02:49 +01:00
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extern const device_t ls486e_nvr_device;
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2020-01-14 02:14:39 +01:00
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extern const device_t via_nvr_device;
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2018-04-25 23:51:13 +02:00
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#endif
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2018-03-13 03:46:10 +01:00
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2018-07-15 01:41:53 +02:00
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extern void rtc_tick(void);
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2018-03-13 03:46:10 +01:00
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extern void nvr_init(nvr_t *);
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2018-04-25 23:51:13 +02:00
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extern wchar_t *nvr_path(wchar_t *str);
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extern FILE *nvr_fopen(wchar_t *str, wchar_t *mode);
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2018-03-13 03:46:10 +01:00
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extern int nvr_load(void);
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Added the IBM 5161 ISA expansion for PC and XT;
Cleaned up the parallel port emulation, added IRQ support, and made enabling/disabling per port;
Added the Award 430NX and the Intel Classic/PCI (Alfredo, 420TX);
Finished the 586MC1;
Added 8087 emulation;
Moved Cyrix 6x86'es to the Dev branch;
Sanitized/cleaned up memregs.c/h and intel.c/h;
Split the chipsets from machines and sanitized Port 92 emulation;
Added support for the 15bpp mode to the Compaq ATI 28800;
Moved the MR 386DX and 486 machines to the Dev branch;
Ported the new dynamic recompiler from PCem, but it remains in Dev branch until after v2.00;
Ported the new timer code from PCem;
Cleaned up the CPU table of unused stuff and better optimized its structure;
Ported the Open-XT and Open-AT from VARCem, the Open-AT is in the Dev branch;
Ported the XT MFM controller rewrite and adding of more controllers (incl. two RLL ones), from VARCem;
Added the AHA-1540A and the BusTek BT-542B;
Moved the Sumo SCSI-AT to the Dev branch;
Minor IDE, FDC, and floppy drive code clean-ups;
Made NCR 5380/53C400-based cards' BIOS address configurable;
Got rid of the legacy romset variable;
Unified (video) buffer and buffer32 into one and make the unified buffer 32-bit;
Added the Amstead PPC512 per PCem patch by John Elliott;
Switched memory mapping granularity from 16k to 4k (less than 1k not possible due to internal pages);
Rewrote the CL-GD 54xx blitter, fixes Win-OS/2 on the 54x6 among other thing;
Added the Image Manager 1024 and Professional Graphics Controller per PCem patch by John Elliott and work done on VARCem;
Added Headland HT-216, GC-205 and Video 7 VGA 1024i emulation based on PCem commit;
Implemented the fuction keys for the Toshiba T1000/T1200/T3100 enhancement;
Amstrad MegaPC does now works correctly with non-internal graphics card;
The SLiRP code no longer casts a packed struct type to a non-packed struct type;
The Xi8088 and PB410a no longer hang on 86Box when PS/2 mouse is not present;
The S3 Virge on BeOS is no longer broken (was broken by build #1591);
OS/2 2.0 build 6.167 now sees key presses again;
Xi8088 now work on CGA again;
86F images converted from either the old or new variants of the HxC MFM format now work correctly;
Hardware interrupts with a vector of 0xFF are now handled correctly;
OPTi 495SX boards no longer incorrectly have 64 MB maximum RAM when 32 MB is correct;
Fixed VNC keyboard input bugs;
Fixed AT RTC periodic interrupt - Chicago 58s / 73f / 73g / 81 MIDI play no longer hangs with the build's own VTD driver;
Fixed mouse polling with internal mice - Amstrad and Olivetti mice now work correctly;
Triones ATAPI DMA driver now correctly reads a file at the end of a CD image with a sectors number not divisible by 4;
Compaq Portable now works with all graphics cards;
Fixed various MDSI Genius bugs;
Added segment limit checks and improved page fault checks for several CPU instructions - Memphis 15xx WINSETUP and Chicago 58s WINDISK.CPL no longer issue a GPF, and some S3 drivers that used to have glitches, now work correctly;
Further improved the 808x emulation, also fixes the noticably choppy sound when using 808x CPU's, also fixes #355;
OS/2 installer no logner locks up on splash screen on PS/2 Model 70 and 80, fixes #400.
Fixed several Amstead bugs, GEM no longer crashes on the Amstrad 1640, fixes #391.
Ported John Elliott's Amstrad fixes and improvement from PCem, and fixed the default language so it's correctly Engliish, fixes #278, fixes #389.
Fixed a minor IDE timing bug, fixes #388.
Fixed Toshiba T1000 RAM issues, fixes #379.
Fixed EGA/(S)VGA overscan border handling, fixes #378;
Got rid of the now long useless IDE channel 2 auto-removal, fixes #370;
Fixed the BIOS files used by the AMSTRAD PC1512, fixes #366;
Ported the Unicode CD image file name fix from VARCem, fixes #365;
Fixed high density floppy disks on the Xi8088, fixes #359;
Fixed some bugs in the Hercules emulation, fixes #346, fixes #358;
Fixed the SCSI hard disk mode sense pages, fixes #356;
Removed the AMI Unknown 386SX because of impossibility to identify the chipset, closes #349;
Fixed bugs in the serial mouse emulation, fixes #344;
Compiled 86Box binaries now include all the required .DLL's, fixes #341;
Made some combo boxes in the Settings dialog slightly wider, fixes #276.
2019-09-20 14:02:30 +02:00
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extern void nvr_close(void);
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2018-09-15 16:15:39 +02:00
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extern void nvr_set_ven_save(void (*ven_save)(void));
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2018-03-13 03:46:10 +01:00
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extern int nvr_save(void);
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extern int nvr_is_leap(int year);
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extern int nvr_get_days(int month, int year);
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extern void nvr_time_get(struct tm *);
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extern void nvr_time_set(struct tm *);
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2020-04-13 20:01:47 +02:00
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extern void nvr_reg_write(uint16_t reg, uint8_t val, void *priv);
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2020-01-14 02:14:39 +01:00
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extern void nvr_at_handler(int set, uint16_t base, nvr_t *nvr);
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2020-04-10 22:32:03 +02:00
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extern void nvr_at_sec_handler(int set, uint16_t base, nvr_t *nvr);
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2020-04-16 21:56:19 +02:00
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extern void nvr_read_addr_set(int set, nvr_t *nvr);
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2020-02-29 19:12:23 +01:00
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extern void nvr_wp_set(int set, int h, nvr_t *nvr);
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2020-04-10 22:32:03 +02:00
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extern void nvr_bank_set(int base, uint8_t bank, nvr_t *nvr);
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extern void nvr_lock_set(int base, int size, int lock, nvr_t *nvr);
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2020-01-14 02:14:39 +01:00
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2018-03-13 03:46:10 +01:00
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#endif /*EMU_NVR_H*/
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