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86Box-fork/src/sio/sio_pc87309.c
OBattler 0faf6692c9 WARNING: CONFIGS MIGHT PARTIALLY BREAK WHERE DEVICE NAMES HAVE CHANGED. 
Changes to device_t struct to accomodate the upcoming PCI IRQ arbitration rewrite;
Added device.c/h API to obtain name from the device_t struct;
Significant changes to win/win_settings.c to clean up the code a bit and fix bugs;
Ported all the CPU and AudioPCI commits from PCem;
Added an API call to allow ACPI soft power off to gracefully stop the emulator;
Removed the Siemens PCD-2L from the Dev branch because it now works;
Removed the Socket 5 HP Vectra from the Dev branch because it now works;
Fixed the Compaq Presario and the Micronics Spitfire;
Give the IBM PC330 its own list of 486 CPU so it can have DX2's with CPUID 0x470;
SMM fixes;
Rewrote the SYSENTER, SYSEXIT, SYSCALL, and SYSRET instructions;
Changed IDE reset period to match the specification, fixes #929;
The keyboard input and output ports are now forced in front of the queue when read, fixes a number of bugs, including the AMI Apollo hanging on soft reset;
Added the Intel AN430TX but Dev branched because it does not work;
The network code no longer drops packets if the emulated network card has failed to receive them (eg. when the buffer is full);
Changes to PCI card adding and renamed some PCI slot types, also added proper AGP bridge slot types;
USB UHCI emulation is no longer a stub (still doesn't fully work, but at least Windows XP chk with Debug no longer ASSERT's on it);
Fixed NVR on the the SMC FDC37C932QF and APM variants;
A number of fixes to Intel 4x0 chipsets, including fixing every register of the 440LX and 440EX;
Some ACPI changes.
2020-11-16 00:01:21 +01:00

493 lines
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/*
* 86Box A hypervisor and IBM PC system emulator that specializes in
* running old operating systems and software designed for IBM
* PC systems and compatibles from 1981 through fairly recent
* system designs based on the PCI bus.
*
* This file is part of the 86Box distribution.
*
* Emulation of the NatSemi PC87309 Super I/O chip.
*
*
*
* Author: Miran Grca, <mgrca8@gmail.com>
* Copyright 2020 Miran Grca.
*/
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <wchar.h>
#include <86box/86box.h>
#include <86box/io.h>
#include <86box/timer.h>
#include <86box/device.h>
#include <86box/lpt.h>
#include <86box/mem.h>
#include <86box/nvr.h>
#include <86box/pci.h>
#include <86box/rom.h>
#include <86box/serial.h>
#include <86box/hdc.h>
#include <86box/hdc_ide.h>
#include <86box/fdd.h>
#include <86box/fdc.h>
#include <86box/sio.h>
typedef struct {
uint8_t id, pm_idx,
regs[48], ld_regs[256][208],
pm[8];
uint16_t pm_base;
int cur_reg;
fdc_t *fdc;
serial_t *uart[2];
} pc87309_t;
static void fdc_handler(pc87309_t *dev);
static void lpt1_handler(pc87309_t *dev);
static void serial_handler(pc87309_t *dev, int uart);
static void
pc87309_pm_write(uint16_t port, uint8_t val, void *priv)
{
pc87309_t *dev = (pc87309_t *) priv;
if (port & 1) {
dev->pm[dev->pm_idx] = val;
switch (dev->pm_idx) {
case 0x00:
fdc_handler(dev);
lpt1_handler(dev);
serial_handler(dev, 1);
serial_handler(dev, 0);
break;
}
} else
dev->pm_idx = val & 0x07;
}
uint8_t
pc87309_pm_read(uint16_t port, void *priv)
{
pc87309_t *dev = (pc87309_t *) priv;
if (port & 1)
return dev->pm[dev->pm_idx];
else
return dev->pm_idx;
}
static void
pc87309_pm_remove(pc87309_t *dev)
{
if (dev->pm_base != 0xffff) {
io_removehandler(dev->pm_base, 0x0008,
pc87309_pm_read, NULL, NULL, pc87309_pm_write, NULL, NULL, dev);
dev->pm_base = 0xffff;
}
}
static void
pc87309_pm_init(pc87309_t *dev, uint16_t addr)
{
dev->pm_base = addr;
io_sethandler(dev->pm_base, 0x0008,
pc87309_pm_read, NULL, NULL, pc87309_pm_write, NULL, NULL, dev);
}
static void
fdc_handler(pc87309_t *dev)
{
uint8_t irq, active;
uint16_t addr;
fdc_remove(dev->fdc);
active = (dev->ld_regs[0x00][0x00] & 0x01) && (dev->pm[0x00] & 0x08);
addr = ((dev->ld_regs[0x00][0x30] << 8) | dev->ld_regs[0x00][0x31]) - 0x0002;
irq = (dev->ld_regs[0x00][0x40] & 0x0f);
if (active) {
fdc_set_base(dev->fdc, addr);
fdc_set_irq(dev->fdc, irq);
}
}
static void
lpt1_handler(pc87309_t *dev)
{
uint8_t irq, active;
uint16_t addr;
lpt1_remove();
active = (dev->ld_regs[0x01][0x00] & 0x01) && (dev->pm[0x00] & 0x10);
addr = (dev->ld_regs[0x01][0x30] << 8) | dev->ld_regs[0x01][0x31];
irq = (dev->ld_regs[0x01][0x40] & 0x0f);
if (active) {
lpt1_init(addr);
lpt1_irq(irq);
}
}
static void
serial_handler(pc87309_t *dev, int uart)
{
uint8_t irq, active;
uint16_t addr;
serial_remove(dev->uart[uart]);
active = (dev->ld_regs[0x03 - uart][0x00] & 0x01) && (dev->pm[0x00] & (1 << (6 - uart)));
addr = (dev->ld_regs[0x03 - uart][0x30] << 8) | dev->ld_regs[0x03 - uart][0x31];
irq = (dev->ld_regs[0x03 - uart][0x40] & 0x0f);
if (active)
serial_setup(dev->uart[uart], addr, irq);
}
static void
pm_handler(pc87309_t *dev)
{
uint8_t active;
uint16_t addr;
pc87309_pm_remove(dev);
active = (dev->ld_regs[0x04][0x00] & 0x01);
addr = (dev->ld_regs[0x04][0x30] << 8) | dev->ld_regs[0x04][0x31];
if (active)
pc87309_pm_init(dev, addr);
}
static void
pc87309_write(uint16_t port, uint8_t val, void *priv)
{
pc87309_t *dev = (pc87309_t *) priv;
uint8_t index;
index = (port & 1) ? 0 : 1;
if (index) {
dev->cur_reg = val;
return;
} else {
switch (dev->cur_reg) {
case 0x00: case 0x02: case 0x03: case 0x06:
case 0x07: case 0x21:
dev->regs[dev->cur_reg] = val;
break;
case 0x22:
dev->regs[dev->cur_reg] = val & 0x7f;
break;
default:
if (dev->cur_reg >= 0x30) {
if ((dev->regs[0x07] != 0x06) || !(dev->regs[0x21] & 0x10))
dev->ld_regs[dev->regs[0x07]][dev->cur_reg - 0x30] = val;
}
break;
}
}
switch(dev->cur_reg) {
case 0x30:
dev->ld_regs[dev->regs[0x07]][dev->cur_reg - 0x30] = val & 0x01;
switch (dev->regs[0x07]) {
case 0x00:
fdc_handler(dev);
break;
case 0x01:
lpt1_handler(dev);
break;
case 0x02:
serial_handler(dev, 1);
break;
case 0x03:
serial_handler(dev, 0);
break;
case 0x04:
pm_handler(dev);
break;
}
break;
case 0x60: case 0x62:
dev->ld_regs[dev->regs[0x07]][dev->cur_reg - 0x30] = val & 0x07;
if (dev->cur_reg == 0x62)
break;
switch (dev->regs[0x07]) {
case 0x00:
fdc_handler(dev);
break;
case 0x01:
lpt1_handler(dev);
break;
case 0x02:
serial_handler(dev, 1);
break;
case 0x03:
serial_handler(dev, 0);
break;
case 0x04:
pm_handler(dev);
break;
}
break;
case 0x63:
if (dev->regs[0x07] == 0x06)
dev->ld_regs[dev->regs[0x07]][dev->cur_reg - 0x30] = (val & 0xf8) | 0x04;
break;
case 0x61:
switch (dev->regs[0x07]) {
case 0x00:
dev->ld_regs[dev->regs[0x07]][dev->cur_reg - 0x30] = (val & 0xfa) | 0x02;
fdc_handler(dev);
break;
case 0x01:
dev->ld_regs[dev->regs[0x07]][dev->cur_reg - 0x30] = val & 0xfc;
lpt1_handler(dev);
break;
case 0x02:
dev->ld_regs[dev->regs[0x07]][dev->cur_reg - 0x30] = val & 0xf8;
serial_handler(dev, 1);
break;
case 0x03:
dev->ld_regs[dev->regs[0x07]][dev->cur_reg - 0x30] = val & 0xf8;
serial_handler(dev, 0);
break;
case 0x04:
dev->ld_regs[dev->regs[0x07]][dev->cur_reg - 0x30] = val & 0xfe;
pm_handler(dev);
break;
case 0x06:
dev->ld_regs[dev->regs[0x07]][dev->cur_reg - 0x30] = val & 0xf8;
break;
}
break;
case 0x70:
case 0x74: case 0x75:
switch (dev->regs[0x07]) {
case 0x00:
fdc_handler(dev);
break;
case 0x01:
lpt1_handler(dev);
break;
case 0x02:
serial_handler(dev, 1);
break;
case 0x03:
serial_handler(dev, 0);
break;
case 0x04:
pm_handler(dev);
break;
}
break;
case 0xf0:
switch (dev->regs[0x07]) {
case 0x00:
dev->ld_regs[dev->regs[0x07]][dev->cur_reg - 0x30] = val & 0xe1;
fdc_update_densel_polarity(dev->fdc, (val & 0x20) ? 1 : 0);
fdc_update_enh_mode(dev->fdc, (val & 0x40) ? 1 : 0);
break;
case 0x01:
dev->ld_regs[dev->regs[0x07]][dev->cur_reg - 0x30] = val & 0xf3;
lpt1_handler(dev);
break;
case 0x02: case 0x03:
dev->ld_regs[dev->regs[0x07]][dev->cur_reg - 0x30] = val & 0x87;
break;
case 0x06:
dev->ld_regs[dev->regs[0x07]][dev->cur_reg - 0x30] = val & 0xc1;
break;
}
break;
case 0xf1:
if (dev->regs[0x07] == 0x00)
dev->ld_regs[dev->regs[0x07]][dev->cur_reg - 0x30] = val & 0x0f;
break;
}
}
uint8_t
pc87309_read(uint16_t port, void *priv)
{
pc87309_t *dev = (pc87309_t *) priv;
uint8_t ret = 0xff, index;
index = (port & 1) ? 0 : 1;
if (index)
ret = dev->cur_reg & 0x1f;
else {
if (dev->cur_reg >= 0x30)
ret = dev->ld_regs[dev->regs[0x07]][dev->cur_reg - 0x30];
else
ret = dev->regs[dev->cur_reg];
}
return ret;
}
void
pc87309_reset(pc87309_t *dev)
{
int i;
memset(dev->regs, 0x00, 0x30);
for (i = 0; i < 256; i++)
memset(dev->ld_regs[i], 0x00, 0xd0);
memset(dev->pm, 0x00, 0x08);
dev->regs[0x20] = dev->id;
dev->regs[0x21] = 0x04;
dev->ld_regs[0x00][0x01] = 0x01;
dev->ld_regs[0x00][0x30] = 0x03;
dev->ld_regs[0x00][0x31] = 0xf2;
dev->ld_regs[0x00][0x40] = 0x06;
dev->ld_regs[0x00][0x41] = 0x03;
dev->ld_regs[0x00][0x44] = 0x02;
dev->ld_regs[0x00][0x45] = 0x04;
dev->ld_regs[0x00][0xc0] = 0x02;
dev->ld_regs[0x01][0x30] = 0x02;
dev->ld_regs[0x01][0x31] = 0x78;
dev->ld_regs[0x01][0x40] = 0x07;
dev->ld_regs[0x01][0x44] = 0x04;
dev->ld_regs[0x01][0x45] = 0x04;
dev->ld_regs[0x01][0xc0] = 0xf2;
dev->ld_regs[0x02][0x30] = 0x02;
dev->ld_regs[0x02][0x31] = 0xf8;
dev->ld_regs[0x02][0x40] = 0x03;
dev->ld_regs[0x02][0x41] = 0x03;
dev->ld_regs[0x02][0x44] = 0x04;
dev->ld_regs[0x02][0x45] = 0x04;
dev->ld_regs[0x02][0xc0] = 0x02;
dev->ld_regs[0x03][0x30] = 0x03;
dev->ld_regs[0x03][0x31] = 0xf8;
dev->ld_regs[0x03][0x40] = 0x04;
dev->ld_regs[0x03][0x41] = 0x03;
dev->ld_regs[0x03][0x44] = 0x04;
dev->ld_regs[0x03][0x45] = 0x04;
dev->ld_regs[0x03][0xc0] = 0x02;
dev->ld_regs[0x04][0x44] = 0x04;
dev->ld_regs[0x04][0x45] = 0x04;
dev->ld_regs[0x05][0x40] = 0x0c;
dev->ld_regs[0x05][0x41] = 0x02;
dev->ld_regs[0x05][0x44] = 0x04;
dev->ld_regs[0x05][0x45] = 0x04;
dev->ld_regs[0x06][0x01] = 0x01;
dev->ld_regs[0x06][0x31] = 0x60;
dev->ld_regs[0x06][0x33] = 0x64;
dev->ld_regs[0x06][0x40] = 0x01;
dev->ld_regs[0x06][0x41] = 0x02;
dev->ld_regs[0x06][0x44] = 0x04;
dev->ld_regs[0x06][0x45] = 0x04;
dev->ld_regs[0x06][0xc0] = 0x40;
dev->regs[0x00] = 0x0B;
dev->regs[0x01] = 0x01;
dev->regs[0x03] = 0x01;
dev->regs[0x05] = 0x0D;
dev->regs[0x08] = 0x70;
dev->regs[0x09] = 0xC0;
dev->regs[0x0b] = 0x80;
dev->regs[0x0f] = 0x1E;
dev->regs[0x12] = 0x30;
dev->regs[0x19] = 0xEF;
dev->pm[0] = 0x79;
dev->pm[4] = 0x0e;
dev->pm_base = 0xffff;
/*
0 = 360 rpm @ 500 kbps for 3.5"
1 = Default, 300 rpm @ 500,300,250,1000 kbps for 3.5"
*/
lpt1_remove();
serial_remove(dev->uart[0]);
serial_remove(dev->uart[1]);
fdc_reset(dev->fdc);
}
static void
pc87309_close(void *priv)
{
pc87309_t *dev = (pc87309_t *) priv;
free(dev);
}
static void *
pc87309_init(const device_t *info)
{
pc87309_t *dev = (pc87309_t *) malloc(sizeof(pc87309_t));
memset(dev, 0, sizeof(pc87309_t));
dev->id = info->local & 0xff;
dev->fdc = device_add(&fdc_at_nsc_device);
dev->uart[0] = device_add_inst(&ns16550_device, 1);
dev->uart[1] = device_add_inst(&ns16550_device, 2);
pc87309_reset(dev);
if (info->local & 0x100) {
io_sethandler(0x15c, 0x0002,
pc87309_read, NULL, NULL, pc87309_write, NULL, NULL, dev);
} else {
io_sethandler(0x02e, 0x0002,
pc87309_read, NULL, NULL, pc87309_write, NULL, NULL, dev);
}
return dev;
}
const device_t pc87309_device = {
"National Semiconductor PC87309 Super I/O",
0,
0xe0,
pc87309_init, pc87309_close, NULL,
{ NULL }, NULL, NULL,
NULL
};
const device_t pc87309_15c_device = {
"National Semiconductor PC87309 Super I/O (Port 15Ch)",
0,
0x1e0,
pc87309_init, pc87309_close, NULL,
{ NULL }, NULL, NULL,
NULL
};
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