bus/pci: add WD9710 Paradise Pipeline card

scripts/src/bus.lua

@@ -5506,6 +5506,8 @@ if (BUSES["PCI"]~=null) then
 		MAME_DIR .. "src/devices/bus/pci/sw1000xg.h",
 		MAME_DIR .. "src/devices/bus/pci/virge_pci.cpp",
 		MAME_DIR .. "src/devices/bus/pci/virge_pci.h",
+		MAME_DIR .. "src/devices/bus/pci/wd9710_pci.cpp",
+		MAME_DIR .. "src/devices/bus/pci/wd9710_pci.h",
 		MAME_DIR .. "src/devices/bus/pci/ymp21.cpp",
 		MAME_DIR .. "src/devices/bus/pci/ymp21.h",
 		MAME_DIR .. "src/devices/bus/pci/zr36057.cpp",

src/devices/bus/pci/pci_slot.cpp

@@ -22,6 +22,7 @@
 #include "sonicvibes.h"
 #include "sw1000xg.h"
 #include "virge_pci.h"
+#include "wd9710_pci.h"
 #include "zr36057.h"
 
 
@@ -124,6 +125,7 @@ void pci_cards(device_slot_interface &device)
 	device.option_add("mga2064w",       MGA2064W);
 	device.option_add("promotion3210",  PROMOTION3210);
 	device.option_add("oti64111",       OTI64111_PCI);
+	device.option_add("wd9710",         WD9710_PCI);
 
 	// 0x04 - multimedia controllers
 	device.option_add("sw1000xg",       SW1000XG);

src/devices/bus/pci/wd9710_pci.cpp

@@ -0,0 +1,132 @@
+// license:BSD-3-Clause
+// copyright-holders: Angelo Salese
+/**************************************************************************************************
+
+WD9710 PCI cards
+
+Essentially a WD90C33 upgraded to PCI.
+
+TODO:
+- Any mode beyond 4bpp is bound to fail;
+
+**************************************************************************************************/
+
+#include "emu.h"
+#include "wd9710_pci.h"
+
+#define LOG_WARN      (1U << 1)
+
+#define VERBOSE (LOG_GENERAL | LOG_WARN)
+//#define LOG_OUTPUT_FUNC osd_printf_info
+#include "logmacro.h"
+
+#define LOGWARN(...)            LOGMASKED(LOG_WARN, __VA_ARGS__)
+
+
+DEFINE_DEVICE_TYPE(WD9710_PCI, wd9710_pci_device,   "wd9710_pci",   "Western Digital WD9710-MZ")
+//DEFINE_DEVICE_TYPE(WD9712_PCI, wd9712_pci_device,   "wd9712_pci",   "Western Digital WD9712-??")
+
+
+wd9710_pci_device::wd9710_pci_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock)
+	: pci_card_device(mconfig, type, tag, owner, clock)
+	, m_svga(*this, "svga")
+	, m_vga_rom(*this, "vga_rom")
+{
+	set_ids(0x101c9710, 0x00, 0x030000, 0x101c9710);
+}
+
+wd9710_pci_device::wd9710_pci_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
+	: wd9710_pci_device(mconfig, WD9710_PCI, tag, owner, clock)
+{
+}
+
+ROM_START( wd9710mz )
+	ROM_REGION32_LE( 0x8000, "vga_rom", ROMREGION_ERASEFF )
+	// Philips Paradise Pipeline 64
+	ROM_SYSTEM_BIOS( 0, "paradise", "Paradise WD9710 v1.01.00 12/06/95")
+	ROMX_LOAD( "bios.bin", 0x0000, 0x8000, CRC(98338249) SHA1(b5dbb28d60adf53c711ec16bc45eab102e40b6a2), ROM_BIOS(0) )
+	ROM_IGNORE( 0x8000 )
+ROM_END
+
+const tiny_rom_entry *wd9710_pci_device::device_rom_region() const
+{
+	return ROM_NAME(wd9710mz);
+}
+
+void wd9710_pci_device::device_add_mconfig(machine_config &config)
+{
+	screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
+	screen.set_raw(25.175_MHz_XTAL, 800, 0, 640, 524, 0, 480);
+	screen.set_screen_update("svga", FUNC(wd90c33_vga_device::screen_update));
+
+	// TODO: bump to specific WD9710 VGA core
+	WD90C33(config, m_svga, 0);
+	m_svga->set_screen("screen");
+	// 2MB, 4MB
+	m_svga->set_vram_size(4*1024*1024);
+}
+
+void wd9710_pci_device::device_start()
+{
+	pci_card_device::device_start();
+
+	add_map(4*1024*1024, M_MEM, FUNC(wd9710_pci_device::vram_aperture_map));
+
+	add_rom((u8 *)m_vga_rom->base(), 0x8000);
+	expansion_rom_base = 0xc0000;
+
+	// INTA#
+	intr_pin = 1;
+}
+
+void wd9710_pci_device::device_reset()
+{
+	pci_card_device::device_reset();
+
+	command = 0x0000;
+	command_mask = 0x23;
+	// TODO: configurable thru config bit 20
+	status = 0x0200;
+
+	remap_cb();
+}
+
+void wd9710_pci_device::config_map(address_map &map)
+{
+	pci_card_device::config_map(map);
+}
+
+void wd9710_pci_device::vram_aperture_map(address_map &map)
+{
+	map(0x000000, 0x3fffff).rw(m_svga, FUNC(wd90c33_vga_device::mem_linear_r), FUNC(wd90c33_vga_device::mem_linear_w));
+}
+
+void wd9710_pci_device::legacy_io_map(address_map &map)
+{
+	map(0, 0x02f).m(m_svga, FUNC(wd90c33_vga_device::io_map));
+}
+
+uint8_t wd9710_pci_device::vram_r(offs_t offset)
+{
+	return downcast<wd90c33_vga_device *>(m_svga.target())->mem_r(offset);
+}
+
+void wd9710_pci_device::vram_w(offs_t offset, uint8_t data)
+{
+	downcast<wd90c33_vga_device *>(m_svga.target())->mem_w(offset, data);
+}
+
+void wd9710_pci_device::map_extra(uint64_t memory_window_start, uint64_t memory_window_end, uint64_t memory_offset, address_space *memory_space,
+							uint64_t io_window_start, uint64_t io_window_end, uint64_t io_offset, address_space *io_space)
+{
+	if (BIT(command, 1))
+	{
+		memory_space->install_readwrite_handler(0xa0000, 0xbffff, read8sm_delegate(*this, FUNC(wd9710_pci_device::vram_r)), write8sm_delegate(*this, FUNC(wd9710_pci_device::vram_w)));
+	}
+
+	if (BIT(command, 0))
+	{
+		io_space->install_device(0x03b0, 0x03df, *this, &wd9710_pci_device::legacy_io_map);
+		// TODO: PnP ports (shouldn't have any other BAR space)
+	}
+}

src/devices/bus/pci/wd9710_pci.h

@@ -0,0 +1,49 @@
+// license:BSD-3-Clause
+// copyright-holders: Angelo Salese
+
+#ifndef MAME_BUS_PCI_WD9710_PCI_H
+#define MAME_BUS_PCI_WD9710_PCI_H
+
+#pragma once
+
+#include "pci_slot.h"
+
+#include "video/pc_vga_paradise.h"
+
+
+class wd9710_pci_device : public pci_card_device
+{
+public:
+	wd9710_pci_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
+
+	static constexpr feature_type unemulated_features() { return feature::GRAPHICS; }
+
+	void legacy_io_map(address_map &map);
+
+protected:
+	wd9710_pci_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
+
+	virtual void device_start() override;
+	virtual void device_reset() override;
+	virtual void device_add_mconfig(machine_config &config) override;
+
+	virtual const tiny_rom_entry *device_rom_region() const override;
+
+	virtual void map_extra(uint64_t memory_window_start, uint64_t memory_window_end, uint64_t memory_offset, address_space *memory_space,
+						   uint64_t io_window_start, uint64_t io_window_end, uint64_t io_offset, address_space *io_space) override;
+
+	virtual void config_map(address_map &map) override;
+
+private:
+	required_device<wd90c33_vga_device> m_svga;
+	required_memory_region m_vga_rom;
+
+	void vram_aperture_map(address_map &map);
+
+	u8 vram_r(offs_t offset);
+	void vram_w(offs_t offset, uint8_t data);
+};
+
+DECLARE_DEVICE_TYPE(WD9710_PCI, wd9710_pci_device)
+
+#endif // MAME_BUS_PCI_WD9710_PCI_H