bus/pci: add stub for Emagic Audiowerk2

scripts/src/bus.lua

@@ -5422,6 +5422,8 @@ if (BUSES["PCI"]~=null) then
 		MAME_DIR .. "src/devices/bus/pci/pci_slot.h",
 		MAME_DIR .. "src/devices/bus/pci/aha2940au.cpp",
 		MAME_DIR .. "src/devices/bus/pci/aha2940au.h",
+		MAME_DIR .. "src/devices/bus/pci/audiowerk2.cpp",
+		MAME_DIR .. "src/devices/bus/pci/audiowerk2.h",
 		MAME_DIR .. "src/devices/bus/pci/ds2416.cpp",
 		MAME_DIR .. "src/devices/bus/pci/ds2416.h",
 		MAME_DIR .. "src/devices/bus/pci/geforce.cpp",

src/devices/bus/pci/audiowerk2.cpp

@@ -0,0 +1,93 @@
+// license:BSD-3-Clause
+// copyright-holders:
+/**************************************************************************************************
+
+Emagic Audiowerk2 / Audiowerk8 Digital Audio Recording PCI
+
+Audiowerk2 HW:
+- SAA7146A (Multimedia PCI Bridge Scaler)
+- SAA7367 (Digital audio ADC bitstream conversion)
+- 2x TDA1315H (?)
+- 28-ish MHz (?)
+
+Back cover box claims:
+- 2x analog inputs (-10dBV, unbalanced RCA);
+- 2x analog outputs (-10dBV, unbalanced RCA);
+- 2x Stereo digital I/O (S/PDIF, RCA);
+- Bitstream A/D and D/A converters (128 oversampling);
+- Sample Rate 44.1 kHz;
+- THD: 0.006% @ 1 kHz, 0 dB signal level;
+- dynamic range: 92 dB, input-to-output, A-weighted;
+- Frequency response: 20 Hz to 20 kHz, -/+ 0.5 dB, input-to-output;
+- PCI busmaster;
+
+SAA7146A is also the basis of several other DVB-based capture cards
+cfr. https://admin.pci-ids.ucw.cz/read/PC/1131/7146
+
+**************************************************************************************************/
+
+#include "emu.h"
+#include "audiowerk2.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(AUDIOWERK2, audiowerk2_device,   "audiowerk2",   "Emagic Audiowerk2 Digital Audio Recording PCI card")
+
+
+
+audiowerk2_device::audiowerk2_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)
+{
+	// TODO: subvendor ID, comes from i2c bus
+	set_ids(0x11317146, 0x01, 0x048000, 0x00000000);
+}
+
+audiowerk2_device::audiowerk2_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
+	: audiowerk2_device(mconfig, AUDIOWERK2, tag, owner, clock)
+{
+}
+
+void audiowerk2_device::device_add_mconfig(machine_config &config)
+{
+
+}
+
+void audiowerk2_device::device_start()
+{
+	pci_card_device::device_start();
+
+	add_map( 0x1000000, M_MEM, FUNC(audiowerk2_device::map));
+
+	// INTA#
+	intr_pin = 1;
+	// TODO: PCI regs 0x3e/0x3f max_lat = 0x26, min_gnt = 0x0f
+}
+
+void audiowerk2_device::device_reset()
+{
+	pci_card_device::device_reset();
+
+	// TODO: default
+	command = 0x0000;
+	// fast back-to-back, medium DEVSEL#
+	status = 0x0280;
+
+	remap_cb();
+}
+
+void audiowerk2_device::config_map(address_map &map)
+{
+	pci_card_device::config_map(map);
+}
+
+void audiowerk2_device::map(address_map &map)
+{
+	// ...
+}

src/devices/bus/pci/audiowerk2.h

@@ -0,0 +1,38 @@
+// license:BSD-3-Clause
+// copyright-holders:
+
+#ifndef MAME_BUS_PCI_AUDIOWERK2_H
+#define MAME_BUS_PCI_AUDIOWERK2_H
+
+#pragma once
+
+#include "pci_slot.h"
+
+class audiowerk2_device : public pci_card_device
+{
+public:
+	audiowerk2_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
+
+	static constexpr feature_type unemulated_features() { return feature::SOUND | feature::CAPTURE; }
+
+protected:
+	audiowerk2_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:
+	void map(address_map &map);
+};
+
+DECLARE_DEVICE_TYPE(AUDIOWERK2, audiowerk2_device)
+
+#endif // MAME_BUS_PCI_AUDIOWERK2_H

src/devices/bus/pci/pci_slot.cpp

@@ -7,6 +7,7 @@
 #include "pci_slot.h"
 
 #include "aha2940au.h"
+#include "audiowerk2.h"
 #include "ds2416.h"
 #include "geforce.h"
 #include "mga2064w.h"
@@ -126,6 +127,7 @@ void pci_cards(device_slot_interface &device)
 	device.option_add("ds2416",         DS2416);
 	device.option_add("sonicvibes",     SONICVIBES);
 	device.option_add("zr36057",        ZR36057_PCI);
+	device.option_add("audiowerk2",     AUDIOWERK2);
 
 	// 0x05 - memory controllers
 	// 0x06 - bridge devices