Added the Magitronic B215

Intended for just testing the XT FDC issues

src/floppy/fdc_magitronic.c

@@ -0,0 +1,99 @@
+/*
+ * 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 Magitronic B215 XT-FDC Controller.
+ *
+ *      Authors: Tiseno100
+ *
+ *		Copyright 2021 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 <86box/timer.h>
+#include <86box/io.h>
+#include <86box/device.h>
+#include <86box/mem.h>
+#include <86box/rom.h>
+#include <86box/fdd.h>
+#include <86box/fdc.h>
+#include <86box/fdc_ext.h>
+
+#define ROM_B215 L"roms/floppy/magitronic/Magitronic B215 - BIOS ROM.bin"
+#define ROM_ADDR (uint32_t)(device_get_config_hex20("bios_addr") & 0x000fffff)
+
+typedef struct
+{
+    fdc_t *fdc_controller;
+    rom_t rom;
+} b215_t;
+
+static void
+b215_close(void *priv)
+{
+    b215_t *dev = (b215_t *)priv;
+
+    free(dev);
+}
+
+static void *
+b215_init(const device_t *info)
+{
+    b215_t *dev = (b215_t *)malloc(sizeof(b215_t));
+    memset(dev, 0, sizeof(b215_t));
+
+    rom_init(&dev->rom, ROM_B215, ROM_ADDR, 0x2000, 0x1fff, 0, MEM_MAPPING_EXTERNAL);
+
+    device_add(&fdc_at_device);
+
+    return dev;
+}
+
+static int b215_available(void)
+{
+    return rom_present(ROM_B215);
+}
+
+static const device_config_t b215_config[] = {
+    {
+	"bios_addr", "BIOS Address:", CONFIG_HEX20, "", 0xca000, "", { 0 },
+	{
+		{
+			"CA00H", 0xca000
+		},
+		{
+			"CC00H", 0xcc000
+		},
+		{
+			""
+		}
+	}
+    },
+    {
+	"", "", -1
+    }
+};
+
+const device_t fdc_b215_device = {
+    "Magitronic B215",
+    DEVICE_ISA,
+    0,
+    b215_init,
+    b215_close,
+    NULL,
+    {b215_available},
+    NULL,
+    NULL,
+    b215_config};