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Initial Micro Solutions CompatiCard support

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This commit is contained in:
Jasmine Iwanek
2022-12-21 04:17:04 -05:00
parent cd251e9b2e
commit abb066f6ef
4 changed files with 372 additions and 9 deletions
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1
src/floppy/CMakeLists.txt
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@@ -18,6 +18,7 @@
add_library(fdd OBJECT
fdd.c
fdc.c
fdc_compaticard.c
fdc_magitronic.c
fdc_monster.c
fdc_pii15xb.c

21
src/floppy/fdc.c
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@@ -103,15 +103,18 @@ typedef const struct {
static fdc_cards_t fdc_cards[] = {
// clang-format off
{ &device_none },
{ &device_internal },
{ &fdc_xt_device },
{ &fdc_at_device },
{ &fdc_b215_device },
{ &fdc_pii151b_device },
{ &fdc_pii158b_device },
{ &fdc_monster_device },
{ NULL }
{ &device_none },
{ &device_internal },
{ &fdc_b215_device },
{ &fdc_pii151b_device },
{ &fdc_pii158b_device },
{ &fdc_compaticard_i_device },
{ &fdc_compaticard_ii_device },
#if 0
{ &fdc_compaticard_iv_device },
#endif
{ &fdc_monster_device },
{ NULL }
// clang-format on
};

355
src/floppy/fdc_compaticard.c Normal file
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@@ -0,0 +1,355 @@
/*
* 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 Micro Solutions CompatiCard I/II/IV.
*
* Authors: Jasmine Iwanek, <jasmine@iwanek.co.uk>
*
* Copyright 2022-2025 Jasmine Iwanek.
*/
#include <stdarg.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <wchar.h>
#define HAVE_STDARG_H
#include <86box/86box.h>
#include <86box/device.h>
#include <86box/io.h>
#include <86box/mem.h>
#include <86box/rom.h>
#include <86box/machine.h>
#include <86box/timer.h>
#include <86box/fdd.h>
#include <86box/fdc.h>
#include <86box/fdc_ext.h>
#define DEVICE_COMPATICARD_I 0
#define DEVICE_COMPATICARD_II 1
#define DEVICE_COMPATICARD_IV 2
#define BIOS_ADDR (uint32_t)(device_get_config_hex20("bios_addr") & 0x000fffff)
#define ROM_COMPATICARD_IV "roms/floppy/compaticard/ccivbios1.05.bin"
#define CR_2_MASK 0x2f /* 00101111b */
typedef struct compaticard_s {
rom_t bios_rom;
fdc_t *fdc;
/*
* 7 - Reserved - Set to 0
* 6 - Reserved - Set to 0
* 5 - Programmable Pin 2 Logic I sets Pin 2 low (TODO)
* 4 - Reserved - Set to 0
* 3-0 - Data Transfer Rate Select (TODO)
* 0000---250 Kbps
* 0001-300 Kbps
* 1111-500 Kbps
*/
uint8_t cr_2;
} compaticard_t;
static void
compaticard_out(uint16_t port, uint8_t val, void *priv)
{
compaticard_t *dev = (compaticard_t *) priv;
dev->cr_2 = (val & CR_2_MASK);
}
static uint8_t
compaticard_in(uint16_t port, void *priv)
{
compaticard_t *dev = (compaticard_t *) priv;
uint8_t ret = (dev->cr_2 &CR_2_MASK);
return ret;
}
static void
compaticard_close(void *priv)
{
compaticard_t *dev = (compaticard_t *) priv;
free(dev);
}
static void *
compaticard_init(const device_t *info)
{
compaticard_t *dev = calloc(1, sizeof(compaticard_t));
uint16_t base_addr = device_get_config_hex16("base");
uint8_t irq = 6;
uint8_t dma = 2;
uint16_t cr2_addr = 0x7f2; // Control Register 2
// CompatiCard II & IV have configurable IRQ and DMA
if (info->local >= DEVICE_COMPATICARD_II) {
irq = device_get_config_int("irq");
dma = device_get_config_int("dma");
}
// Only on CompatiCard IV
if ((info->local == DEVICE_COMPATICARD_IV) && (BIOS_ADDR != 0))
rom_init(&dev->bios_rom, ROM_COMPATICARD_IV, BIOS_ADDR, 0x2000, 0x1ffff, 0, MEM_MAPPING_EXTERNAL);
// TODO: Make this neater
switch (base_addr) {
case FDC_SECONDARY_ADDR:
cr2_addr = 0x772;
if (info->local == DEVICE_COMPATICARD_IV)
dev->fdc = device_add(&fdc_at_sec_device);
else
dev->fdc = device_add(&fdc_xt_sec_device);
break;
case FDC_TERTIARY_ADDR:
cr2_addr = 0x762;
if (info->local == DEVICE_COMPATICARD_IV)
dev->fdc = device_add(&fdc_at_ter_device);
else
dev->fdc = device_add(&fdc_xt_ter_device);
break;
case FDC_QUATERNARY_ADDR:
cr2_addr = 0x7e2;
if (info->local == DEVICE_COMPATICARD_IV)
dev->fdc = device_add(&fdc_at_qua_device);
else
dev->fdc = device_add(&fdc_xt_qua_device);
break;
default:
if (info->local == DEVICE_COMPATICARD_IV)
dev->fdc = device_add(&fdc_at_device);
else
dev->fdc = device_add(&fdc_xt_device);
break;
}
fdc_set_irq(dev->fdc, irq);
fdc_set_dma_ch(dev->fdc, dma);
io_sethandler(cr2_addr, 0x0001,
compaticard_in, NULL, NULL,
compaticard_out, NULL, NULL,
dev);
return dev;
}
static int compaticard_iv_available(void)
{
return rom_present(ROM_COMPATICARD_IV);
}
static const device_config_t compaticard_i_config[] = {
// clang-format off
{
.name = "base",
.description = "Address",
.type = CONFIG_HEX16,
.default_string = "",
.default_int = 0x3f0,
.file_filter = "",
.spinner = { 0 },
.selection = {
{ .description = "0x3f0", .value = 0x3f0 },
{ .description = "0x370", .value = 0x370 },
{ .description = "0x360", .value = 0x360 },
{ .description = "0x3e0", .value = 0x3e0 },
{ .description = "" }
}
},
{ .name = "", .description = "", .type = CONFIG_END }
// clang-format on
};
static const device_config_t compaticard_ii_config[] = {
// clang-format off
{
.name = "base",
.description = "Address",
.type = CONFIG_HEX16,
.default_string = "",
.default_int = 0x3f0,
.file_filter = "",
.spinner = { 0 },
.selection = {
{ .description = "0x3f0", .value = 0x3f0 },
{ .description = "0x370", .value = 0x370 },
{ .description = "0x360", .value = 0x360 },
{ .description = "0x3e0", .value = 0x3e0 },
{ .description = "" }
}
},
{
.name = "irq",
.description = "IRQ",
.type = CONFIG_SELECTION,
.default_string = "",
.default_int = 6,
.file_filter = "",
.spinner = { 0 },
.selection = {
{ .description = "IRQ 2", .value = 2 },
{ .description = "IRQ 3", .value = 3 },
{ .description = "IRQ 4", .value = 4 },
{ .description = "IRQ 5", .value = 5 },
{ .description = "IRQ 6", .value = 6 },
{ .description = "IRQ 7", .value = 7 },
{ .description = "" }
}
},
{
.name = "dma",
.description = "DMA channel",
.type = CONFIG_SELECTION,
.default_string = "",
.default_int = 2,
.file_filter = "",
.spinner = { 0 },
.selection = {
{ .description = "DMA 1", .value = 1 },
{ .description = "DMA 2", .value = 2 },
{ .description = "DMA 3", .value = 3 },
{ .description = "" }
}
},
{ .name = "", .description = "", .type = CONFIG_END }
// clang-format on
};
static const device_config_t compaticard_iv_config[] = {
// clang-format off
{
.name = "base",
.description = "Address",
.type = CONFIG_HEX16,
.default_string = "",
.default_int = 0x3f0,
.file_filter = "",
.spinner = { 0 },
.selection = {
{ .description = "0x3f0", .value = 0x3f0 },
{ .description = "0x370", .value = 0x370 },
{ .description = "0x360", .value = 0x360 },
{ .description = "0x3e0", .value = 0x3e0 },
{ .description = "" }
}
},
{
.name = "irq",
.description = "IRQ",
.type = CONFIG_SELECTION,
.default_string = "",
.default_int = 6,
.file_filter = "",
.spinner = { 0 },
.selection = {
{ .description = "IRQ 2", .value = 2 },
{ .description = "IRQ 3", .value = 3 },
{ .description = "IRQ 4", .value = 4 },
{ .description = "IRQ 5", .value = 5 },
{ .description = "IRQ 6", .value = 6 },
{ .description = "IRQ 7", .value = 7 },
{ .description = "" }
}
},
{
.name = "dma",
.description = "DMA channel",
.type = CONFIG_SELECTION,
.default_string = "",
.default_int = 2,
.file_filter = "",
.spinner = { 0 },
.selection = {
{ .description = "DMA 1", .value = 1 },
{ .description = "DMA 2", .value = 2 },
{ .description = "DMA 3", .value = 3 },
{ .description = "" }
}
},
{
.name = "bios_addr",
.description = "BIOS Address:",
.type = CONFIG_HEX20,
.default_string = "",
.default_int = 0xce000,
.file_filter = "",
.spinner = { 0 },
.selection = {
{ .description = "Disabled", .value = 0 },
{ .description = "CC00H", .value = 0xcc000 },
{ .description = "CE00H", .value = 0xce000 },
{ .description = "D000H", .value = 0xd0000 },
{ .description = "D800H", .value = 0xd8000 },
{ .description = "DE00H", .value = 0xde000 },
{ .description = "E000H", .value = 0xe0000 },
{ .description = "E800H", .value = 0xe8000 },
{ .description = "EE00H", .value = 0xee000 },
{ .description = "" }
}
},
#if 0
{
.name = "autoboot_enabled",
.description = "Enable Autoboot",
.type = CONFIG_BINARY,
.default_string = "",
.default_int = 0
},
#endif
{ .name = "", .description = "", .type = CONFIG_END }
// clang-format on
};
const device_t fdc_compaticard_i_device = {
.name = "Micro Solutions CompatiCard I",
.internal_name = "compaticard_i",
.flags = DEVICE_ISA,
.local = 0,
.init = compaticard_init,
.close = compaticard_close,
.reset = NULL,
.available = NULL,
.speed_changed = NULL,
.force_redraw = NULL,
.config = compaticard_i_config
};
const device_t fdc_compaticard_ii_device = {
.name = "Micro Solutions CompatiCard II",
.internal_name = "compaticard_ii",
.flags = DEVICE_ISA,
.local = 1,
.init = compaticard_init,
.close = compaticard_close,
.reset = NULL,
.available = NULL,
.speed_changed = NULL,
.force_redraw = NULL,
.config = compaticard_ii_config
};
const device_t fdc_compaticard_iv_device = {
.name = "Micro Solutions CompatiCard IV",
.internal_name = "compaticard_iv",
.flags = DEVICE_ISA,
.local = 2,
.init = compaticard_init,
.close = compaticard_close,
.reset = NULL,
.available = compaticard_iv_available,
.speed_changed = NULL,
.force_redraw = NULL,
.config = compaticard_iv_config
};

4
src/include/86box/fdc_ext.h
View File

@@ -34,6 +34,10 @@ extern const device_t fdc_b215_device;
extern const device_t fdc_pii151b_device;
extern const device_t fdc_pii158b_device;
extern const device_t fdc_compaticard_i_device;
extern const device_t fdc_compaticard_ii_device;
extern const device_t fdc_compaticard_iv_device;
extern const device_t fdc_monster_device;
extern void fdc_card_init(void);