Files
86Box/src/sio/sio_um8669f.c

324 lines
7.0 KiB
C
Raw Normal View History

/*um8669f :
aa to 108 unlocks
next 108 write is register select (Cx?)
data read/write to 109
55 to 108 locks
C1
bit 7 - enable PnP registers
PnP registers :
07 - device :
0 = FDC
1 = COM1
2 = COM2
3 = LPT1
5 = Game port
30 - enable
60/61 - addr
70 - IRQ
74 - DMA*/
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <wchar.h>
#include <86box/86box.h>
#include <86box/device.h>
#include <86box/io.h>
#include <86box/timer.h>
#include <86box/pci.h>
#include <86box/lpt.h>
#include <86box/serial.h>
#include <86box/fdd.h>
#include <86box/fdc.h>
#include <86box/sio.h>
#define DEV_FDC 0
#define DEV_COM1 1
#define DEV_COM2 2
#define DEV_LPT1 3
#define DEV_GAME 5
#define REG_DEVICE 0x07
#define REG_ENABLE 0x30
#define REG_ADDRHI 0x60
#define REG_ADDRLO 0x61
#define REG_IRQ 0x70
#define REG_DMA 0x74
typedef struct um8669f_t
{
int locked, cur_reg_108,
cur_reg, cur_device,
pnp_active;
uint8_t regs_108[256];
struct {
int enable;
uint16_t addr;
int irq;
int dma;
} dev[8];
fdc_t *fdc;
serial_t *uart[2];
} um8669f_t;
static void
um8669f_pnp_write(uint16_t port, uint8_t val, void *priv)
{
um8669f_t *dev = (um8669f_t *) priv;
uint8_t valxor = 0;
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
uint8_t lpt_irq = 0xff;
if (port == 0x279)
dev->cur_reg = val;
else {
if (dev->cur_reg == REG_DEVICE)
dev->cur_device = val & 7;
else {
switch (dev->cur_reg) {
case REG_ENABLE:
valxor = dev->dev[dev->cur_device].enable ^ val;
dev->dev[dev->cur_device].enable = val;
break;
case REG_ADDRLO:
valxor = (dev->dev[dev->cur_device].addr & 0xff) ^ val;
dev->dev[dev->cur_device].addr = (dev->dev[dev->cur_device].addr & 0xff00) | val;
break;
case REG_ADDRHI:
valxor = ((dev->dev[dev->cur_device].addr >> 8) & 0xff) ^ val;
dev->dev[dev->cur_device].addr = (dev->dev[dev->cur_device].addr & 0x00ff) | (val << 8);
break;
case REG_IRQ:
valxor = dev->dev[dev->cur_device].irq ^ val;
dev->dev[dev->cur_device].irq = val;
break;
case REG_DMA:
valxor = dev->dev[dev->cur_device].dma ^ val;
dev->dev[dev->cur_device].dma = val;
break;
default:
valxor = 0;
break;
}
switch (dev->cur_device) {
case DEV_FDC:
if ((dev->cur_reg == REG_ENABLE) && valxor) {
fdc_remove(dev->fdc);
if (dev->dev[DEV_FDC].enable & 1)
fdc_set_base(dev->fdc, 0x03f0);
}
break;
case DEV_COM1:
if ((dev->cur_reg == REG_ENABLE) && valxor) {
serial_remove(dev->uart[0]);
if (dev->dev[DEV_COM1].enable & 1)
serial_setup(dev->uart[0], dev->dev[DEV_COM1].addr, dev->dev[DEV_COM1].irq);
}
break;
case DEV_COM2:
if ((dev->cur_reg == REG_ENABLE) && valxor) {
serial_remove(dev->uart[1]);
if (dev->dev[DEV_COM2].enable & 1)
serial_setup(dev->uart[1], dev->dev[DEV_COM2].addr, dev->dev[DEV_COM2].irq);
}
break;
case DEV_LPT1:
if ((dev->cur_reg == REG_ENABLE) && valxor) {
lpt1_remove();
if (dev->dev[DEV_LPT1].enable & 1)
lpt1_init(dev->dev[DEV_LPT1].addr);
}
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
if (dev->dev[DEV_LPT1].irq <= 15)
lpt_irq = dev->dev[DEV_LPT1].irq;
lpt1_irq(lpt_irq);
break;
}
}
}
}
static uint8_t
um8669f_pnp_read(uint16_t port, void *priv)
{
um8669f_t *dev = (um8669f_t *) priv;
uint8_t ret = 0xff;
switch (dev->cur_reg) {
case REG_DEVICE:
ret = dev->cur_device;
break;
case REG_ENABLE:
ret = dev->dev[dev->cur_device].enable;
break;
case REG_ADDRLO:
ret = dev->dev[dev->cur_device].addr & 0xff;
break;
case REG_ADDRHI:
ret = dev->dev[dev->cur_device].addr >> 8;
break;
case REG_IRQ:
ret = dev->dev[dev->cur_device].irq;
break;
case REG_DMA:
ret = dev->dev[dev->cur_device].dma;
break;
}
return ret;
}
2020-02-29 19:12:23 +01:00
void
um8669f_write(uint16_t port, uint8_t val, void *priv)
{
um8669f_t *dev = (um8669f_t *) priv;
int new_pnp_active;
if (dev->locked) {
if ((port == 0x108) && (val == 0xaa))
dev->locked = 0;
} else {
if (port == 0x108) {
if (val == 0x55)
dev->locked = 1;
else
dev->cur_reg_108 = val;
} else {
dev->regs_108[dev->cur_reg_108] = val;
if (dev->cur_reg_108 == 0xc1) {
new_pnp_active = !!(dev->regs_108[0xc1] & 0x80);
if (new_pnp_active != dev->pnp_active) {
if (new_pnp_active) {
io_sethandler(0x0279, 0x0001,
NULL, NULL, NULL, um8669f_pnp_write, NULL, NULL, dev);
io_sethandler(0x0a79, 0x0001,
NULL, NULL, NULL, um8669f_pnp_write, NULL, NULL, dev);
io_sethandler(0x03e3, 0x0001,
um8669f_pnp_read, NULL, NULL, NULL, NULL, NULL, dev);
} else {
io_removehandler(0x0279, 0x0001,
NULL, NULL, NULL, um8669f_pnp_write, NULL, NULL, dev);
io_removehandler(0x0a79, 0x0001,
NULL, NULL, NULL, um8669f_pnp_write, NULL, NULL, dev);
io_removehandler(0x03e3, 0x0001,
um8669f_pnp_read, NULL, NULL, NULL, NULL, NULL, dev);
}
dev->pnp_active = new_pnp_active;
}
}
}
}
}
2020-02-29 19:12:23 +01:00
uint8_t
um8669f_read(uint16_t port, void *priv)
{
um8669f_t *dev = (um8669f_t *) priv;
uint8_t ret = 0xff;
if (!dev->locked) {
if (port == 0x108)
ret = dev->cur_reg_108; /* ??? */
else
ret = dev->regs_108[dev->cur_reg_108];
}
return ret;
}
void
um8669f_reset(um8669f_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);
if (dev->pnp_active) {
io_removehandler(0x0279, 0x0001, NULL, NULL, NULL, um8669f_pnp_write, NULL, NULL, dev);
io_removehandler(0x0a79, 0x0001, NULL, NULL, NULL, um8669f_pnp_write, NULL, NULL, dev);
io_removehandler(0x03e3, 0x0001, um8669f_pnp_read, NULL, NULL, NULL, NULL, NULL, dev);
dev->pnp_active = 0;
}
dev->locked = 1;
dev->dev[DEV_FDC].enable = 1;
dev->dev[DEV_FDC].addr = 0x03f0;
dev->dev[DEV_FDC].irq = 6;
dev->dev[DEV_FDC].dma = 2;
dev->dev[DEV_COM1].enable = 1;
dev->dev[DEV_COM1].addr = 0x03f8;
dev->dev[DEV_COM1].irq = 4;
dev->dev[DEV_COM2].enable = 1;
dev->dev[DEV_COM2].addr = 0x02f8;
dev->dev[DEV_COM2].irq = 3;
dev->dev[DEV_LPT1].enable = 1;
dev->dev[DEV_LPT1].addr = 0x0378;
dev->dev[DEV_LPT1].irq = 7;
}
static void
um8669f_close(void *priv)
{
um8669f_t *dev = (um8669f_t *) priv;
free(dev);
}
static void *
um8669f_init(const device_t *info)
{
um8669f_t *dev = (um8669f_t *) malloc(sizeof(um8669f_t));
memset(dev, 0, sizeof(um8669f_t));
2020-02-29 19:12:23 +01:00
dev->fdc = device_add(&fdc_at_smc_device);
dev->uart[0] = device_add_inst(&ns16550_device, 1);
dev->uart[1] = device_add_inst(&ns16550_device, 2);
io_sethandler(0x0108, 0x0002,
um8669f_read, NULL, NULL, um8669f_write, NULL, NULL, dev);
um8669f_reset(dev);
return dev;
}
const device_t um8669f_device = {
"UMC UM8669F Super I/O",
0,
0,
um8669f_init, um8669f_close, NULL,
NULL, NULL, NULL,
NULL
};