Added SiS 550x, 558x, 559x, (5)600, UMC UM8890, UMC UM8663 Super I/O Chips, UMC UM8673F and Winbond W83769F IDE Contollers, and a number of machines, and fixes to the UM888x 486 chipset.
This commit is contained in:
OBattler
212
src/disk/hdc_ide_um8673f.c
Normal file
212
src/disk/hdc_ide_um8673f.c
Normal file
@@ -0,0 +1,212 @@
|
||||
/*
|
||||
* 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 UMC UMF8673F IDE controller.
|
||||
*
|
||||
* Authors: Miran Grca, <mgrca8@gmail.com>
|
||||
*
|
||||
* Copyright 2024 Miran Grca.
|
||||
*/
|
||||
#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/hdc_ide.h>
|
||||
#include <86box/hdc.h>
|
||||
#include <86box/mem.h>
|
||||
#include <86box/nmi.h>
|
||||
#include <86box/pic.h>
|
||||
#include <86box/pci.h>
|
||||
#include <86box/plat_unused.h>
|
||||
#include <86box/port_92.h>
|
||||
#include <86box/smram.h>
|
||||
|
||||
#include <86box/chipset.h>
|
||||
|
||||
#ifdef ENABLE_UM8673F_LOG
|
||||
int um8673f_do_log = ENABLE_UM8673F_LOG;
|
||||
|
||||
static void
|
||||
um8673f_log(const char *fmt, ...)
|
||||
{
|
||||
va_list ap;
|
||||
|
||||
if (um8673f_do_log) {
|
||||
va_start(ap, fmt);
|
||||
pclog_ex(fmt, ap);
|
||||
va_end(ap);
|
||||
}
|
||||
}
|
||||
#else
|
||||
# define um8673f_log(fmt, ...)
|
||||
#endif
|
||||
|
||||
typedef struct um8673f_t {
|
||||
uint8_t index;
|
||||
uint8_t tries;
|
||||
uint8_t unlocked;
|
||||
|
||||
uint8_t regs[256];
|
||||
} um8673f_t;
|
||||
|
||||
static void
|
||||
um8673f_ide_handler(um8673f_t *dev)
|
||||
{
|
||||
ide_pri_disable();
|
||||
ide_sec_disable();
|
||||
if (dev->regs[0xb0] & 0x80)
|
||||
ide_pri_enable();
|
||||
if (dev->regs[0xb0] & 0x40)
|
||||
ide_sec_enable();
|
||||
}
|
||||
|
||||
static void
|
||||
um8673f_write(uint16_t addr, uint8_t val, void *priv)
|
||||
{
|
||||
um8673f_t *dev = (um8673f_t *) priv;
|
||||
|
||||
um8673f_log("[%04X:%08X] [W] %02X = %02X (%i)\n", CS, cpu_state.pc, port, val, dev->tries);
|
||||
|
||||
switch (addr) {
|
||||
case 0x108:
|
||||
if (dev->unlocked) {
|
||||
if (dev->index == 0x34) {
|
||||
dev->unlocked = 0;
|
||||
dev->tries = 0;
|
||||
} else
|
||||
dev->index = val;
|
||||
} else if (((dev->tries == 0) && (val == 0x4a)) ||
|
||||
((dev->tries == 1) && (val == 0x6c))) {
|
||||
dev->tries++;
|
||||
if (dev->tries == 2)
|
||||
dev->unlocked = 1;
|
||||
} else
|
||||
dev->tries = 0;
|
||||
break;
|
||||
|
||||
case 0x109:
|
||||
switch (dev->index) {
|
||||
case 0xb0:
|
||||
dev->regs[dev->index] = val;
|
||||
um8673f_ide_handler(dev);
|
||||
break;
|
||||
case 0xb1 ... 0xb8:
|
||||
dev->regs[dev->index] = val;
|
||||
break;
|
||||
|
||||
default:
|
||||
break;
|
||||
}
|
||||
break;
|
||||
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
static uint8_t
|
||||
um8673f_read(uint16_t addr, void *priv)
|
||||
{
|
||||
um8673f_t *dev = (um8673f_t *) priv;
|
||||
uint8_t ret = 0xff;
|
||||
|
||||
switch (addr) {
|
||||
case 0x108:
|
||||
if (dev->unlocked)
|
||||
ret = dev->index;
|
||||
else
|
||||
dev->tries = 0;
|
||||
break;
|
||||
case 0x109:
|
||||
if ((dev->index >= 0xb0) && (dev->index <= 0xb8))
|
||||
ret = dev->regs[dev->index];
|
||||
break;
|
||||
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
um8673f_log("[%04X:%08X] [R] %02X = %02X\n", CS, cpu_state.pc, port, ret);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static void
|
||||
um8673f_reset(void *priv)
|
||||
{
|
||||
um8673f_t *dev = (um8673f_t *) priv;
|
||||
|
||||
memset(dev->regs, 0x00, 256);
|
||||
|
||||
ide_pri_disable();
|
||||
ide_sec_disable();
|
||||
|
||||
/* IDE registers */
|
||||
dev->regs[0xb0] = 0xc0;
|
||||
|
||||
um8673f_ide_handler(dev);
|
||||
}
|
||||
|
||||
static void
|
||||
um8673f_close(void *priv)
|
||||
{
|
||||
um8673f_t *dev = (um8673f_t *) priv;
|
||||
|
||||
free(dev);
|
||||
}
|
||||
|
||||
static void *
|
||||
um8673f_init(UNUSED(const device_t *info))
|
||||
{
|
||||
um8673f_t *dev = (um8673f_t *) calloc(1, sizeof(um8673f_t));
|
||||
|
||||
io_sethandler(0x0108, 0x0002, um8673f_read, NULL, NULL, um8673f_write, NULL, NULL, dev);
|
||||
|
||||
device_add(info->local ? &ide_pci_2ch_device : &ide_vlb_2ch_device);
|
||||
|
||||
um8673f_reset(dev);
|
||||
|
||||
return dev;
|
||||
}
|
||||
|
||||
const device_t ide_um8886af_device = {
|
||||
.name = "UMC UM8886F IDE",
|
||||
.internal_name = "um8886af_ide",
|
||||
.flags = 0,
|
||||
.local = 1,
|
||||
.init = um8673f_init,
|
||||
.close = um8673f_close,
|
||||
.reset = um8673f_reset,
|
||||
{ .available = NULL },
|
||||
.speed_changed = NULL,
|
||||
.force_redraw = NULL,
|
||||
.config = NULL
|
||||
};
|
||||
|
||||
const device_t ide_um8673f_device = {
|
||||
.name = "UMC UM8673F",
|
||||
.internal_name = "um8673f",
|
||||
.flags = 0,
|
||||
.local = 0,
|
||||
.init = um8673f_init,
|
||||
.close = um8673f_close,
|
||||
.reset = um8673f_reset,
|
||||
{ .available = NULL },
|
||||
.speed_changed = NULL,
|
||||
.force_redraw = NULL,
|
||||
.config = NULL
|
||||
};
|
||||
Reference in New Issue
Block a user