2017-05-05 01:49:42 +02:00
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/*
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2017-05-30 03:38:38 +02:00
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* 86Box A hypervisor and IBM PC system emulator that specializes in
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* running old operating systems and software designed for IBM
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* PC systems and compatibles from 1981 through fairly recent
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* system designs based on the PCI bus.
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*
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* This file is part of the 86Box distribution.
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*
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* Implementation of the SMC FDC37C669 Super I/O Chip.
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*
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2020-03-25 00:46:02 +02:00
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*
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2017-05-30 03:38:38 +02:00
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*
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* Author: Miran Grca, <mgrca8@gmail.com>
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2018-01-17 18:43:36 +01:00
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* Copyright 2016-2018 Miran Grca.
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2017-05-30 03:38:38 +02:00
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*/
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2017-09-25 04:31:20 -04:00
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#include <stdio.h>
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#include <stdint.h>
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2018-11-08 19:21:55 +01:00
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#include <stdlib.h>
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2017-09-25 04:31:20 -04:00
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#include <string.h>
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#include <wchar.h>
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2017-10-17 01:59:09 -04:00
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#include "86box.h"
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2020-02-29 19:12:23 +01:00
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#include "86box_io.h"
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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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#include "timer.h"
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2017-10-01 16:29:15 -04:00
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#include "device.h"
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2017-11-05 01:57:04 -05:00
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#include "pci.h"
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2017-05-05 01:49:42 +02:00
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#include "lpt.h"
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#include "serial.h"
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2020-02-29 19:12:23 +01:00
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#include "hdc.h"
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#include "hdc_ide.h"
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#include "fdd.h"
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#include "fdc.h"
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2017-09-04 01:52:29 -04:00
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#include "sio.h"
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2017-05-05 01:49:42 +02:00
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2018-11-08 19:21:55 +01:00
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typedef struct {
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uint8_t tries,
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regs[42];
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int locked, rw_locked,
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cur_reg;
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fdc_t *fdc;
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serial_t *uart[2];
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} fdc37c669_t;
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2017-05-05 01:49:42 +02:00
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2018-11-08 19:21:55 +01:00
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static uint16_t
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make_port(fdc37c669_t *dev, uint8_t reg)
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2017-05-05 01:49:42 +02:00
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{
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2018-11-08 19:21:55 +01:00
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uint16_t p = 0;
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uint16_t mask = 0;
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2017-05-05 01:49:42 +02:00
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2018-11-08 19:21:55 +01:00
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switch(reg) {
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case 0x20:
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case 0x21:
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case 0x22:
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mask = 0xfc;
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break;
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case 0x23:
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mask = 0xff;
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break;
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case 0x24:
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case 0x25:
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mask = 0xfe;
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break;
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}
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2017-09-07 01:52:36 +02:00
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2018-11-08 19:21:55 +01:00
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p = ((uint16_t) (dev->regs[reg] & mask)) << 2;
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if (reg == 0x22)
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p |= 6;
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return p;
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2017-05-05 01:49:42 +02:00
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}
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2018-11-08 19:21:55 +01:00
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static void
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fdc37c669_write(uint16_t port, uint8_t val, void *priv)
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2017-05-05 01:49:42 +02:00
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{
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2018-11-08 19:21:55 +01:00
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fdc37c669_t *dev = (fdc37c669_t *) priv;
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uint8_t index = (port & 1) ? 0 : 1;
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uint8_t valxor = 0;
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uint8_t max = 42;
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if (index) {
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if ((val == 0x55) && !dev->locked) {
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if (dev->tries) {
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dev->locked = 1;
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dev->tries = 0;
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} else
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dev->tries++;
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} else {
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if (dev->locked) {
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if (val < max)
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dev->cur_reg = val;
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if (val == 0xaa)
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dev->locked = 0;
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} else {
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if (dev->tries)
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dev->tries = 0;
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2017-05-05 01:49:42 +02:00
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}
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}
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return;
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2018-11-08 19:21:55 +01:00
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} else {
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if (dev->locked) {
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if ((dev->cur_reg < 0x18) && (dev->rw_locked))
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return;
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if ((dev->cur_reg >= 0x26) && (dev->cur_reg <= 0x27))
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return;
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if (dev->cur_reg == 0x29)
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return;
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valxor = val ^ dev->regs[dev->cur_reg];
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dev->regs[dev->cur_reg] = val;
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} else
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return;
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}
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2017-05-05 01:49:42 +02:00
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2018-11-08 19:21:55 +01:00
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switch(dev->cur_reg) {
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case 0:
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if (valxor & 8) {
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fdc_remove(dev->fdc);
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if ((dev->regs[0] & 8) && (dev->regs[0x20] & 0xc0))
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fdc_set_base(dev->fdc, make_port(dev, 0x20));
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}
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break;
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case 1:
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if (valxor & 4) {
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lpt1_remove();
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if ((dev->regs[1] & 4) && (dev->regs[0x23] >= 0x40))
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lpt1_init(make_port(dev, 0x23));
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}
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if (valxor & 7)
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dev->rw_locked = (val & 8) ? 0 : 1;
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break;
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case 2:
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if (valxor & 8) {
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serial_remove(dev->uart[0]);
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if ((dev->regs[2] & 8) && (dev->regs[0x24] >= 0x40))
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serial_setup(dev->uart[0], make_port(dev, 0x24), (dev->regs[0x28] & 0xf0) >> 4);
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}
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if (valxor & 0x80) {
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serial_remove(dev->uart[1]);
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if ((dev->regs[2] & 0x80) && (dev->regs[0x25] >= 0x40))
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serial_setup(dev->uart[1], make_port(dev, 0x25), dev->regs[0x28] & 0x0f);
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}
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break;
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case 3:
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if (valxor & 2)
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fdc_update_enh_mode(dev->fdc, (val & 2) ? 1 : 0);
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break;
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case 5:
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if (valxor & 0x18)
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fdc_update_densel_force(dev->fdc, (val & 0x18) >> 3);
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if (valxor & 0x20)
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fdc_set_swap(dev->fdc, (val & 0x20) >> 5);
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break;
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case 0xB:
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if (valxor & 3)
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fdc_update_rwc(dev->fdc, 0, val & 3);
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if (valxor & 0xC)
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fdc_update_rwc(dev->fdc, 1, (val & 0xC) >> 2);
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break;
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case 0x20:
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if (valxor & 0xfc) {
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fdc_remove(dev->fdc);
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if ((dev->regs[0] & 8) && (dev->regs[0x20] & 0xc0))
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fdc_set_base(dev->fdc, make_port(dev, 0x20));
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}
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break;
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case 0x23:
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if (valxor) {
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lpt1_remove();
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if ((dev->regs[1] & 4) && (dev->regs[0x23] >= 0x40))
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lpt1_init(make_port(dev, 0x23));
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}
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break;
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case 0x24:
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if (valxor & 0xfe) {
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serial_remove(dev->uart[0]);
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if ((dev->regs[2] & 8) && (dev->regs[0x24] >= 0x40))
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serial_setup(dev->uart[0], make_port(dev, 0x24), (dev->regs[0x28] & 0xf0) >> 4);
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}
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break;
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case 0x25:
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if (valxor & 0xfe) {
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serial_remove(dev->uart[1]);
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if ((dev->regs[2] & 0x80) && (dev->regs[0x25] >= 0x40))
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serial_setup(dev->uart[1], make_port(dev, 0x25), dev->regs[0x28] & 0x0f);
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}
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break;
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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
|
|
|
case 0x27:
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|
|
if (valxor & 0xf)
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|
|
lpt1_irq(val & 0xf);
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|
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break;
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2018-11-08 19:21:55 +01:00
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case 0x28:
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|
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|
if (valxor & 0xf) {
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|
serial_remove(dev->uart[1]);
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if ((dev->regs[2] & 0x80) && (dev->regs[0x25] >= 0x40))
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serial_setup(dev->uart[1], make_port(dev, 0x25), dev->regs[0x28] & 0x0f);
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}
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|
|
|
|
if (valxor & 0xf0) {
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|
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|
serial_remove(dev->uart[0]);
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if ((dev->regs[2] & 8) && (dev->regs[0x24] >= 0x40))
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|
serial_setup(dev->uart[0], make_port(dev, 0x24), (dev->regs[0x28] & 0xf0) >> 4);
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|
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|
|
}
|
|
|
|
|
break;
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|
|
|
|
}
|
2017-05-05 01:49:42 +02:00
|
|
|
}
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|
|
|
|
|
2018-11-08 19:21:55 +01:00
|
|
|
|
|
|
|
|
static uint8_t
|
|
|
|
|
fdc37c669_read(uint16_t port, void *priv)
|
2017-05-05 01:49:42 +02:00
|
|
|
{
|
2018-11-08 19:21:55 +01:00
|
|
|
fdc37c669_t *dev = (fdc37c669_t *) priv;
|
|
|
|
|
uint8_t index = (port & 1) ? 0 : 1;
|
|
|
|
|
uint8_t ret = 0xff;
|
2017-05-05 01:49:42 +02:00
|
|
|
|
2018-11-08 19:21:55 +01:00
|
|
|
if (dev->locked) {
|
|
|
|
|
if (index)
|
|
|
|
|
ret = dev->cur_reg;
|
|
|
|
|
else if ((dev->cur_reg >= 0x18) || !dev->rw_locked)
|
|
|
|
|
ret = dev->regs[dev->cur_reg];
|
|
|
|
|
}
|
2017-05-05 01:49:42 +02:00
|
|
|
|
2018-11-08 19:21:55 +01:00
|
|
|
return ret;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
fdc37c669_reset(fdc37c669_t *dev)
|
|
|
|
|
{
|
|
|
|
|
fdc_reset(dev->fdc);
|
|
|
|
|
|
|
|
|
|
serial_remove(dev->uart[0]);
|
|
|
|
|
serial_setup(dev->uart[0], SERIAL1_ADDR, SERIAL1_IRQ);
|
|
|
|
|
|
|
|
|
|
serial_remove(dev->uart[1]);
|
|
|
|
|
serial_setup(dev->uart[1], SERIAL2_ADDR, SERIAL2_IRQ);
|
|
|
|
|
|
|
|
|
|
lpt1_remove();
|
|
|
|
|
lpt1_init(0x378);
|
|
|
|
|
|
|
|
|
|
memset(dev->regs, 0, 42);
|
|
|
|
|
dev->regs[0x00] = 0x28;
|
|
|
|
|
dev->regs[0x01] = 0x9c;
|
|
|
|
|
dev->regs[0x02] = 0x88;
|
|
|
|
|
dev->regs[0x03] = 0x78;
|
|
|
|
|
dev->regs[0x06] = 0xff;
|
|
|
|
|
dev->regs[0x0d] = 0x03;
|
|
|
|
|
dev->regs[0x0e] = 0x02;
|
|
|
|
|
dev->regs[0x1e] = 0x80; /* Gameport controller. */
|
|
|
|
|
dev->regs[0x20] = (0x3f0 >> 2) & 0xfc;
|
|
|
|
|
dev->regs[0x21] = (0x1f0 >> 2) & 0xfc;
|
|
|
|
|
dev->regs[0x22] = ((0x3f6 >> 2) & 0xfc) | 1;
|
|
|
|
|
dev->regs[0x23] = (0x378 >> 2);
|
|
|
|
|
dev->regs[0x24] = (0x3f8 >> 2) & 0xfe;
|
|
|
|
|
dev->regs[0x25] = (0x2f8 >> 2) & 0xfe;
|
|
|
|
|
dev->regs[0x26] = (2 << 4) | 3;
|
|
|
|
|
dev->regs[0x27] = (6 << 4) | 7;
|
|
|
|
|
dev->regs[0x28] = (4 << 4) | 3;
|
|
|
|
|
|
|
|
|
|
dev->locked = 0;
|
|
|
|
|
dev->rw_locked = 0;
|
2017-05-05 01:49:42 +02:00
|
|
|
}
|
|
|
|
|
|
2018-11-08 19:21:55 +01:00
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
fdc37c669_close(void *priv)
|
2017-05-05 01:49:42 +02:00
|
|
|
{
|
2018-11-08 19:21:55 +01:00
|
|
|
fdc37c669_t *dev = (fdc37c669_t *) priv;
|
|
|
|
|
|
|
|
|
|
free(dev);
|
2017-05-05 01:49:42 +02:00
|
|
|
}
|
|
|
|
|
|
2018-11-08 19:21:55 +01:00
|
|
|
|
|
|
|
|
static void *
|
|
|
|
|
fdc37c669_init(const device_t *info)
|
2017-05-05 01:49:42 +02:00
|
|
|
{
|
2018-11-08 19:21:55 +01:00
|
|
|
fdc37c669_t *dev = (fdc37c669_t *) malloc(sizeof(fdc37c669_t));
|
|
|
|
|
memset(dev, 0, sizeof(fdc37c669_t));
|
2018-01-17 18:43:36 +01:00
|
|
|
|
2018-11-08 19:21:55 +01:00
|
|
|
dev->fdc = device_add(&fdc_at_smc_device);
|
2017-05-05 01:49:42 +02:00
|
|
|
|
2018-11-08 19:21:55 +01:00
|
|
|
dev->uart[0] = device_add_inst(&ns16550_device, 1);
|
|
|
|
|
dev->uart[1] = device_add_inst(&ns16550_device, 2);
|
|
|
|
|
|
|
|
|
|
io_sethandler(0x3f0, 0x0002,
|
|
|
|
|
fdc37c669_read, NULL, NULL, fdc37c669_write, NULL, NULL, dev);
|
|
|
|
|
|
|
|
|
|
fdc37c669_reset(dev);
|
|
|
|
|
|
|
|
|
|
return dev;
|
2017-05-05 01:49:42 +02:00
|
|
|
}
|
2018-11-08 19:21:55 +01:00
|
|
|
|
|
|
|
|
|
|
|
|
|
const device_t fdc37c669_device = {
|
|
|
|
|
"SMC FDC37C669 Super I/O",
|
|
|
|
|
0,
|
|
|
|
|
0,
|
|
|
|
|
fdc37c669_init, fdc37c669_close, NULL,
|
|
|
|
|
NULL, NULL, NULL,
|
|
|
|
|
NULL
|
|
|
|
|
};
|