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86Box/src/chipset/ali1489.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

548 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.
*
* Implementation of the ALi M1489 chipset.
*
*
*
* Authors: Tiseno100
*
* Copyright 2020 Tiseno100
*
*/
#include <stdarg.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <wchar.h>
#define HAVE_STDARG_H
#include <86box/86box.h>
#include "cpu.h"
#include <86box/timer.h>
#include <86box/io.h>
#include <86box/device.h>
#include <86box/keyboard.h>
#include <86box/mem.h>
#include <86box/fdd.h>
#include <86box/fdc.h>
#include <86box/pci.h>
#include <86box/dma.h>
#include <86box/smram.h>
#include <86box/hdc_ide.h>
#include <86box/port_92.h>
#include <86box/chipset.h>
#define disabled_shadow (MEM_READ_EXTANY | MEM_WRITE_EXTANY)
#define ENABLE_ALI1489_LOG 0
#ifdef ENABLE_ALI1489_LOG
int ali1489_do_log = ENABLE_ALI1489_LOG;
static void
ali1489_log(const char *fmt, ...)
{
va_list ap;
if (ali1489_do_log) {
va_start(ap, fmt);
pclog_ex(fmt, ap);
va_end(ap);
}
}
#else
#define ali1489_log(fmt, ...)
#endif
typedef struct
{
uint8_t index, ide_index, ide_chip_id,
regs[256], pci_conf[256], ide_regs[256];
port_92_t * port_92;
smram_t * smram;
} ali1489_t;
static void
ali1489_defaults(void *priv)
{
ali1489_t *dev = (ali1489_t *) priv;
/* IDE registers */
dev->ide_regs[0x01] = 0x02;
dev->ide_regs[0x08] = 0xff;
dev->ide_regs[0x09] = 0x41;
dev->ide_regs[0x34] = 0xff;
dev->ide_regs[0x35] = 0x01;
/* PCI registers */
dev->pci_conf[0x00] = 0xb9;
dev->pci_conf[0x01] = 0x10;
dev->pci_conf[0x02] = 0x89;
dev->pci_conf[0x03] = 0x14;
dev->pci_conf[0x04] = 0x07;
dev->pci_conf[0x07] = 0x04;
dev->pci_conf[0x0b] = 0x06;
/* ISA registers */
dev->regs[0x01] = 0x0f;
dev->regs[0x02] = 0x0f;
dev->regs[0x10] = 0xf1;
dev->regs[0x11] = 0xff;
dev->regs[0x13] = 0x00;
dev->regs[0x14] = 0x00;
dev->regs[0x15] = 0x20;
dev->regs[0x16] = 0x30;
dev->regs[0x19] = 0x04;
dev->regs[0x21] = 0x72;
dev->regs[0x28] = 0x02;
dev->regs[0x2b] = 0xdb;
dev->regs[0x3c] = 0x03;
dev->regs[0x3d] = 0x01;
dev->regs[0x40] = 0x03;
}
static void ali1489_shadow_recalc(ali1489_t *dev)
{
uint32_t base, i;
for(i = 0; i < 8; i++){
base = 0xc0000 + (i << 14);
if(dev->regs[0x13] & (1 << i))
mem_set_mem_state_both(base, 0x4000, ((dev->regs[0x14] & 0x10) ? MEM_READ_INTERNAL : MEM_READ_EXTANY) | ((dev->regs[0x14] & 0x20) ? MEM_WRITE_INTERNAL : MEM_WRITE_EXTANY));
else
mem_set_mem_state_both(base, 0x4000, disabled_shadow);
}
for(i = 0; i < 4; i++){
base = 0xe0000 + (i << 15);
shadowbios = (dev->regs[0x14] & 0x10);
shadowbios_write = (dev->regs[0x14] & 0x20);
if(dev->regs[0x14] & (1 << i))
mem_set_mem_state_both(base, 0x8000, ((dev->regs[0x14] & 0x10) ? MEM_READ_INTERNAL : MEM_READ_EXTANY) | ((dev->regs[0x14] & 0x20) ? MEM_WRITE_INTERNAL : MEM_WRITE_EXTANY));
else
mem_set_mem_state_both(base, 0x8000, disabled_shadow);
}
flushmmucache();
}
static void ali1489_smram_recalc(ali1489_t *dev)
{
/* The datasheet documents SMM behavior quite terribly.
Everything were done according to the M1489 programming guide. */
switch(dev->regs[0x19] & 0x30) {
case 0:
smram_disable_all();
break;
case 1:
smram_enable(dev->smram, 0xa0000, 0xa0000, 0x20000, (dev->regs[0x19] & 0x08), !(dev->regs[0x19] & 0x08));
break;
case 2:
smram_enable(dev->smram, 0xe0000, 0xe0000, 0x10000, (dev->regs[0x19] & 0x08), !(dev->regs[0x19] & 0x08));
break;
case 3:
smram_enable(dev->smram, 0x30000, 0xa0000, 0x20000, (dev->regs[0x19] & 0x08), !(dev->regs[0x19] & 0x08));
break;
}
}
static void
ali1489_write(uint16_t addr, uint8_t val, void *priv)
{
ali1489_t *dev = (ali1489_t *) priv;
switch (addr) {
case 0x22:
dev->index = val;
break;
case 0x23:
dev->regs[dev->index] = val;
if(dev->regs[0x03] == 0xc5) /* Check if the configuration registers are unlocked */
{
switch(dev->index){
case 0x10: /* DRAM Configuration Register I */
case 0x11: /* DRAM Configuration Register II */
case 0x12: /* ROM Function Register */
dev->regs[dev->index] = val;
break;
case 0x13: /* Shadow Region Register */
case 0x14: /* Shadow Control Register */
if(dev->index == 0x14)
dev->regs[dev->index] = (val & 0xbf);
else
{
dev->regs[dev->index] = val;
}
ali1489_shadow_recalc(dev);
break;
case 0x15: /* Cycle Check Point Control Register */
dev->regs[dev->index] = (val & 0xf1);
break;
case 0x16: /* Cache Control Register I */
dev->regs[dev->index] = val;
cpu_cache_int_enabled = (val & 0x01);
cpu_cache_ext_enabled = (val & 0x02);
break;
case 0x17: /* Cache Control Register II */
dev->regs[dev->index] = val;
break;
case 0x19: /* SMM Control Register */
dev->regs[dev->index] = val;
ali1489_smram_recalc(dev);
break;
case 0x1a: /* EDO DRAM Configuration Register */
case 0x1b: /* DRAM Timing Control Register */
case 0x1c: /* Memory Data Buffer Direction Control Register */
dev->regs[dev->index] = val;
break;
case 0x1e: /* Linear Wrapped Burst Order Mode Control Register */
dev->regs[dev->index] = (val & 0x40);
break;
case 0x20: /* CPU to PCI Buffer Control Register */
case 0x21: /* DEVSELJ Check Point Setting Register */
dev->regs[dev->index] = val;
break;
case 0x22: /* PCI to CPU W/R Buffer Configuration Register */
dev->regs[dev->index] = (val & 0xfd);
break;
case 0x25: /* GP/MEM Address Definition Register I */
case 0x26: /* GP/MEM Address Definition Register II */
case 0x27: /* GP/MEM Address Definition Register III */
case 0x28: /* PCI Arbiter Control Register */
dev->regs[dev->index] = val;
break;
case 0x29: /* System Clock Register */
dev->regs[dev->index] = val;
if(val & 0x10)
port_92_add(dev->port_92);
else
port_92_remove(dev->port_92);
break;
case 0x2a: /* I/O Recovery Register */
dev->regs[dev->index] = val;
break;
case 0x2b: /* Turbo Function Register */
dev->regs[dev->index] = (val & 0xbf);
break;
case 0x30: /* Power Management Unit Control Register */
case 0x31: /* Mode Timer Monitoring Events Selection Register I */
case 0x32: /* Mode Timer Monitoring Events Selection Register II */
case 0x33: /* SMI Triggered Events Selection Register I */
case 0x34: /* SMI Triggered Events Selection Register II */
dev->regs[dev->index] = val;
break;
case 0x35: /* SMI Status Register */
dev->regs[dev->index] = val;
if(dev->regs[dev->index] & 0x30)
smi_line = 1;
break;
case 0x36: /* IRQ Channel Group Selected Control Register I */
dev->regs[dev->index] = (val & 0xe5);
break;
case 0x37: /* IRQ Channel Group Selected Control Register II */
dev->regs[dev->index] = (val & 0xef);
break;
case 0x38: /* DRQ Channel Selected Control Register */
case 0x39: /* Mode Timer Setting Register */
case 0x3a: /* Input_device Timer Setting Register */
case 0x3b: /* GP/MEM Timer Setting Register */
case 0x3c: /* LED Flash Control Register */
dev->regs[dev->index] = val;
break;
case 0x3d: /* Miscellaneous Register I */
dev->regs[dev->index] = (val & 0x07);
break;
case 0x3f: /* Shadow Port 70h Register */
dev->regs[dev->index] = val;
break;
case 0x40: /* Clock Generator Control Feature Register */
dev->regs[dev->index] = (val & 0x3f);
break;
case 0x41: /* Power Control Output Register */
dev->regs[dev->index] = val;
break;
case 0x42: /* PCI INTx Routing Table Mapping Register I */
if((val & 0x0f) != 0)
pci_set_irq(PCI_INTA, (val & 0x0f));
else
pci_set_irq(PCI_INTA, PCI_IRQ_DISABLED);
if(((val & 0x0f) << 4) != 0)
pci_set_irq(PCI_INTB, ((val & 0x0f) << 4));
else
pci_set_irq(PCI_INTB, PCI_IRQ_DISABLED);
break;
case 0x43: /* PCI INTx Routing Table Mapping Register II */
if((val & 0x0f) != 0)
pci_set_irq(PCI_INTC, (val & 0x0f));
else
pci_set_irq(PCI_INTC, PCI_IRQ_DISABLED);
if(((val & 0x0f) << 4) != 0)
pci_set_irq(PCI_INTD, ((val & 0x0f) << 4));
else
pci_set_irq(PCI_INTD, PCI_IRQ_DISABLED);
break;
case 0x44: /* PCI INTx Sensitivity Register */
dev->regs[dev->index] = val;
break;
}
if(dev->index != 0x03)
{
ali1489_log("M1489: dev->regs[%02x] = %02x\n", dev->index, val);
}
}
break;
}
}
static uint8_t
ali1489_read(uint16_t addr, void *priv)
{
uint8_t ret = 0xff;
ali1489_t *dev = (ali1489_t *) priv;
switch (addr) {
case 0x23:
if(((dev->index == 0x20) || (dev->index >= 0xc0)) && cpu_iscyrix) /* Avoid conflict with Cyrix CPU registers */
ret = 0xff;
else
{
ret = dev->regs[dev->index];
}
break;
}
return ret;
}
static void
ali1489_pci_write(int func, int addr, uint8_t val, void *priv)
{
ali1489_t *dev = (ali1489_t *) priv;
ali1489_log("M1489-PCI: dev->regs[%02x] = %02x\n", addr, val);
switch (addr)
{
/* Dummy PCI Config */
case 0x04:
dev->pci_conf[0x04] = (dev->pci_conf[0x04] & ~0x07) | (val & 0x07);
break;
/* Dummy PCI Status */
case 0x07:
dev->pci_conf[0x07] &= ~(val & 0xfe);
break;
}
}
static uint8_t
ali1489_pci_read(int func, int addr, void *priv)
{
ali1489_t *dev = (ali1489_t *) priv;
uint8_t ret = 0xff;
ret = dev->pci_conf[addr];
return ret;
}
static void
ali1489_ide_write(uint16_t addr, uint8_t val, void *priv)
{
ali1489_t *dev = (ali1489_t *) priv;
switch (addr) {
case 0xf4: /* Usually it writes 30h here */
dev->ide_chip_id = val;
break;
case 0xf8:
dev->ide_index = val;
break;
case 0xfc:
ali1489_log("M1489-IDE: dev->regs[%02x] = %02x\n", dev->ide_index, val);
dev->ide_regs[dev->ide_index] = val;
ide_pri_disable();
ide_sec_disable();
if(dev->ide_regs[0x01] & 0x01){ /*The datasheet doesn't clearly explain the channel selection */
ide_pri_enable(); /*So we treat it according to the chipset programming manual. */
ide_set_base(0, 0x1f0);
ide_set_side(0, 0x3f6);
if(!(dev->ide_regs[0x35] & 0x41)){
ide_sec_enable();
ide_set_base(1, 0x170);
ide_set_side(1, 0x376);
}
}
break;
}
}
static uint8_t
ali1489_ide_read(uint16_t addr, void *priv)
{
uint8_t ret = 0xff;
ali1489_t *dev = (ali1489_t *) priv;
switch (addr) {
case 0xf4:
ret = dev->ide_chip_id;
break;
case 0xfc:
ret = dev->ide_regs[dev->ide_index];
break;
}
return ret;
}
static void
ali1489_reset(void *priv)
{
ali1489_t *dev = (ali1489_t *) priv;
ide_pri_disable();
ide_sec_disable();
pci_set_irq(PCI_INTA, PCI_IRQ_DISABLED);
pci_set_irq(PCI_INTB, PCI_IRQ_DISABLED);
pci_set_irq(PCI_INTC, PCI_IRQ_DISABLED);
pci_set_irq(PCI_INTD, PCI_IRQ_DISABLED);
ali1489_defaults(dev);
}
static void
ali1489_close(void *priv)
{
ali1489_t *dev = (ali1489_t *) priv;
smram_del(dev->smram);
free(dev);
}
static void *
ali1489_init(const device_t *info)
{
ali1489_t *dev = (ali1489_t *) malloc(sizeof(ali1489_t));
memset(dev, 0, sizeof(ali1489_t));
/*
M1487/M1489
22h Index Port
23h Data Port
*/
io_sethandler(0x0022, 0x0002, ali1489_read, NULL, NULL, ali1489_write, NULL, NULL, dev);
/*
M1489 IDE controller
F4h Chip ID we write always 30h onto it
F8h Index Port
FCh Data Port
*/
io_sethandler(0x0f4, 0x0001, ali1489_ide_read, NULL, NULL, ali1489_ide_write, NULL, NULL, dev);
io_sethandler(0x0f8, 0x0001, ali1489_ide_read, NULL, NULL, ali1489_ide_write, NULL, NULL, dev);
io_sethandler(0x0fc, 0x0001, ali1489_ide_read, NULL, NULL, ali1489_ide_write, NULL, NULL, dev);
/* Dummy M1489 PCI device */
pci_add_card(PCI_ADD_NORTHBRIDGE, ali1489_pci_read, ali1489_pci_write, dev);
ide_pri_disable();
ide_sec_disable();
dev->port_92 = device_add(&port_92_pci_device);
dev->smram = smram_add();
pci_set_irq(PCI_INTA, PCI_IRQ_DISABLED);
pci_set_irq(PCI_INTB, PCI_IRQ_DISABLED);
pci_set_irq(PCI_INTC, PCI_IRQ_DISABLED);
pci_set_irq(PCI_INTD, PCI_IRQ_DISABLED);
ali1489_defaults(dev);
ali1489_shadow_recalc(dev);
return dev;
}
const device_t ali1489_device = {
"ALi M1489",
0,
0,
ali1489_init,
ali1489_close,
ali1489_reset,
{ NULL },
NULL,
NULL,
NULL
};
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