(MESS) msx.c: Added support for Philips VY-0010 external floppy interface and drive (nw)

.gitattributes

@@ -1015,6 +1015,8 @@ src/emu/bus/msx_cart/cartridge.c svneol=native#text/plain
 src/emu/bus/msx_cart/cartridge.h svneol=native#text/plain
 src/emu/bus/msx_cart/crossblaim.c svneol=native#text/plain
 src/emu/bus/msx_cart/crossblaim.h svneol=native#text/plain
+src/emu/bus/msx_cart/disk.c svneol=native#text/plain
+src/emu/bus/msx_cart/disk.h svneol=native#text/plain
 src/emu/bus/msx_cart/dooly.c svneol=native#text/plain
 src/emu/bus/msx_cart/dooly.h svneol=native#text/plain
 src/emu/bus/msx_cart/fmpac.c svneol=native#text/plain

hash/msx1_cart.xml

@@ -17109,6 +17109,25 @@ legacy FM implementations cannot find it.
 		</part>
 	</software>
 
+	<software name="vy0010">
+		<description>Philips VY-0010 (Floppy controller + 3.5" SS floppy drive)</description>
+		<year>198?</year>
+		<publisher>Philips</publisher>
+		<part name="cart" interface="msx_cart">
+			<feature name="slot" value="disk_vy0010" />
+			<dataarea name="rom" size="0x4000">
+				<!-- Dump contains contents of the memory mapped FDC registers -->
+				<!-- ROM label taken from schematic, possibly incorrect -->
+				<rom name="27128q25-8.ic2" size="0x4000" crc="164f5a6d" sha1="8924e3e11eb1c8c1edcb7efa63c26d2bdc142473" status="baddump" offset="0" />
+			</dataarea>
+		</part>
+		<!-- The package came with a copy of msx-dos -->
+<!--
+		<part name="flop1" interface="35_disk">
+		</part>
+-->
+	</software>
+
 	<!-- SORT -->
 
 	<software name="dooly">

src/emu/bus/bus.mak

@@ -412,6 +412,7 @@ BUSOBJS += $(BUSOBJ)/msx_cart/ascii.o
 BUSOBJS += $(BUSOBJ)/msx_cart/bm_012.o
 BUSOBJS += $(BUSOBJ)/msx_cart/cartridge.o
 BUSOBJS += $(BUSOBJ)/msx_cart/crossblaim.o
+BUSOBJS += $(BUSOBJ)/msx_cart/disk.o
 BUSOBJS += $(BUSOBJ)/msx_cart/dooly.o
 BUSOBJS += $(BUSOBJ)/msx_cart/fmpac.o
 BUSOBJS += $(BUSOBJ)/msx_cart/halnote.o

src/emu/bus/msx_cart/cartridge.c

@@ -5,6 +5,7 @@
 #include "ascii.h"
 #include "bm_012.h"
 #include "crossblaim.h"
+#include "disk.h"
 #include "dooly.h"
 #include "fmpac.h"
 #include "halnote.h"
@@ -54,6 +55,7 @@ SLOT_INTERFACE_START(msx_cart)
 	SLOT_INTERFACE_INTERNAL("dooly", MSX_CART_DOOLY)
 	SLOT_INTERFACE_INTERNAL("halnote", MSX_CART_HALNOTE)
 	SLOT_INTERFACE_INTERNAL("arc", MSX_CART_ARC)
+	SLOT_INTERFACE_INTERNAL("disk_vy0010", MSX_CART_VY0010)
 	SLOT_INTERFACE("bm_012", MSX_CART_BM_012)
 SLOT_INTERFACE_END
 

src/emu/bus/msx_cart/disk.c

@@ -0,0 +1,231 @@
+/*****************************************************************************
+ *
+ * MSX Floopy drive interface add-on cartridges
+ *
+ * Currently supported:
+ * - Philips VY-0010 (Interface cartridge + 1 3.5" SS floppy drive)
+ *
+ ****************************************************************************/
+
+#include "emu.h"
+#include "disk.h"
+#include "formats/msx_dsk.h"
+
+
+const device_type MSX_CART_VY0010 = &device_creator<msx_cart_vy0010>;
+
+
+FLOPPY_FORMATS_MEMBER( msx_cart_vy0010::floppy_formats )
+	FLOPPY_MSX_FORMAT
+FLOPPY_FORMATS_END
+
+
+static SLOT_INTERFACE_START( msx_floppies )
+	SLOT_INTERFACE( "35dd", FLOPPY_35_DD )
+	SLOT_INTERFACE( "35ssdd", FLOPPY_35_SSDD )
+SLOT_INTERFACE_END
+
+
+msx_cart_vy0010::msx_cart_vy0010(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
+	: device_t(mconfig, MSX_CART_VY0010, "MSX Cartridge - VY0010", tag, owner, clock, "msx_cart_vy0010", __FILE__)
+	, msx_cart_interface(mconfig, *this)
+	, m_fdc(*this, "fdc")
+	, m_floppy0(*this, "fdc:0")
+	, m_floppy1(*this, "fdc:1")
+	, m_floppy(NULL)
+	, m_control(0)
+{
+}
+
+
+static MACHINE_CONFIG_FRAGMENT( vy0010 )
+	// From VY-0010 schematic:
+	// HLT pulled high
+	// SSO/-ENMF + -DDEN + ENP + -5/8 - pulled low
+	// READY inverted in VY-0010 cartridge and pulled low on VY-0010/VY-0011 floppy drive
+	MCFG_WD2793x_ADD("fdc", XTAL_4MHz / 4)
+	MCFG_WD_FDC_FORCE_READY
+
+	// Single sided 3.5" floppy drive
+	MCFG_FLOPPY_DRIVE_ADD("fdc:0", msx_floppies, "35ssdd", msx_cart_vy0010::floppy_formats)
+
+	// Attach software lists
+	// We do not know in what kind of machine the user has inserted the floppy interface
+	// so we list all msx floppy software lists.
+	//
+	MCFG_SOFTWARE_LIST_ADD("flop_list","msx2_flop")
+	MCFG_SOFTWARE_LIST_COMPATIBLE_ADD("msx1_flop_list","msx1_flop")
+MACHINE_CONFIG_END
+
+
+machine_config_constructor msx_cart_vy0010::device_mconfig_additions() const
+{
+	return MACHINE_CONFIG_NAME( vy0010 );
+}
+
+
+void msx_cart_vy0010::device_start()
+{
+	save_item(NAME(m_side_control));
+	save_item(NAME(m_control));
+
+	machine().save().register_postload(save_prepost_delegate(FUNC(msx_cart_vy0010::post_load), this));
+}
+
+
+void msx_cart_vy0010::post_load()
+{
+	UINT8 data = m_control;
+
+	// To make sure the FDD busy led status gets set correctly
+	m_control ^= 0x40;
+
+	set_control(data);
+}
+
+
+void msx_cart_vy0010::set_control(UINT8 data)
+{
+	UINT8 old_m_control = m_control;
+
+	m_control = data;
+
+	switch (m_control & 0x03)
+	{
+		case 0:
+		case 2:
+			m_floppy = m_floppy0 ? m_floppy0->get_device() : NULL;
+			break;
+
+		case 1:
+			m_floppy = m_floppy1 ? m_floppy1->get_device() : NULL;
+			break;
+
+		default:
+			m_floppy = NULL;
+			break;
+	}
+
+	if (m_floppy)
+	{
+		m_floppy->mon_w((m_control & 0x80) ? 0 : 1);
+		m_floppy->ss_w(m_side_control & 0x01);
+	}
+
+	m_fdc->set_floppy(m_floppy);
+
+	if ((old_m_control ^ m_control) & 0x40)
+	{
+		set_led_status(machine(), 0, !(m_control & 0x40));
+	}
+}
+
+
+void msx_cart_vy0010::set_side_control(UINT8 data)
+{
+	m_side_control = data;
+
+	if (m_floppy)
+	{
+		m_floppy->ss_w(m_side_control & 0x01);
+	}
+}
+
+
+void msx_cart_vy0010::device_reset()
+{
+	m_fdc->dden_w(false);
+}
+
+
+void msx_cart_vy0010::initialize_cartridge()
+{
+	if ( get_rom_size() != 0x4000 )
+	{
+		fatalerror("vy0010: Invalid ROM size\n");
+	}
+}
+
+
+READ8_MEMBER(msx_cart_vy0010::read_cart)
+{
+	switch (offset)
+	{
+		case 0x7ff8:
+		case 0xbff8:
+			return m_fdc->status_r();
+
+		case 0x7ff9:
+		case 0xbff9:
+			return m_fdc->track_r();
+
+		case 0x7ffa:
+		case 0xbffa:
+			return m_fdc->sector_r();
+
+		case 0x7ffb:
+		case 0xbffb:
+			return m_fdc->data_r();
+
+		case 0x7ffc:
+		case 0xbffc:
+			return 0xfe | (m_side_control & 0x01);
+
+		case 0x7ffd:
+		case 0xbffd:
+			return ( m_control & 0x83 ) | 0x78;
+
+		case 0x7fff:
+		case 0xbfff:
+			return 0x3f | (m_fdc->intrq_r() ? 0 : 0x40) | (m_fdc->drq_r() ? 0 : 0x80);
+	}
+
+	if (offset >= 0x4000 && offset < 0x8000)
+	{
+		return get_rom_base()[offset & 0x3fff];
+	}
+	return 0xff;
+}
+
+
+WRITE8_MEMBER(msx_cart_vy0010::write_cart)
+{
+	switch (offset)
+	{
+		case 0x7ff8:
+		case 0xbff8:
+			m_fdc->cmd_w(data);
+			break;
+
+		case 0x7ff9:
+		case 0xbff9:
+			m_fdc->track_w(data);
+			break;
+
+		case 0x7ffa:
+		case 0xbffa:
+			m_fdc->sector_w(data);
+			break;
+
+		case 0x7ffb:
+		case 0xbffb:
+			m_fdc->data_w(data);
+			break;
+
+		case 0x7ffc:
+		case 0xbffc:
+			set_side_control(data);
+			break;
+
+		case 0x7ffd:
+		case 0xbffd:
+			set_control(data);
+			break;
+
+		default:
+			logerror("msx_cart_vy0010::write_cart: Unmapped write writing %02x to %04x\n", data, offset);
+			break;
+	}
+}
+
+

src/emu/bus/msx_cart/disk.h

@@ -0,0 +1,47 @@
+#ifndef __MSX_CART_DISK_H
+#define __MSX_CART_DISK_H
+
+#include "bus/msx_cart/cartridge.h"
+#include "machine/wd_fdc.h"
+#include "imagedev/flopdrv.h"
+#include "imagedev/floppy.h"
+
+
+extern const device_type MSX_CART_VY0010;
+
+
+class msx_cart_vy0010 : public device_t
+						, public msx_cart_interface
+{
+public:
+	msx_cart_vy0010(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+
+	// device-level overrides
+	virtual void device_start();
+	virtual void device_reset();
+	virtual machine_config_constructor device_mconfig_additions() const;
+
+	virtual void initialize_cartridge();
+
+	virtual DECLARE_READ8_MEMBER(read_cart);
+	virtual DECLARE_WRITE8_MEMBER(write_cart);
+
+	void post_load();
+
+	DECLARE_FLOPPY_FORMATS(floppy_formats);
+
+private:
+	required_device<wd_fdc_analog_t> m_fdc;
+	required_device<floppy_connector> m_floppy0;
+	optional_device<floppy_connector> m_floppy1;
+	floppy_image_device *m_floppy;
+
+	UINT8 m_side_control;
+	UINT8 m_control;
+
+	void set_side_control(UINT8 data);
+	void set_control(UINT8 data);
+};
+
+
+#endif