bus/pci: add stub for AHA2940AU [Guru]

scripts/src/bus.lua

@@ -5420,6 +5420,8 @@ if (BUSES["PCI"]~=null) then
 	files {
 		MAME_DIR .. "src/devices/bus/pci/pci_slot.cpp",
 		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/ds2416.cpp",
 		MAME_DIR .. "src/devices/bus/pci/ds2416.h",
 		MAME_DIR .. "src/devices/bus/pci/geforce.cpp",

src/devices/bus/pci/aha2940au.cpp

@@ -0,0 +1,90 @@
+// license:BSD-3-Clause
+// copyright-holders:
+/**************************************************************************************************
+
+Adaptec AHA-2940AU PCI
+
+Based off AIC-7860/7861
+
+TODO:
+- Plays with southbridge SMI & APMCAPMS regs soon after entering in its own BIOS (PC=ccfe1),
+  going off the track blanking the almost entirety of I/O space range.
+
+**************************************************************************************************/
+
+#include "emu.h"
+#include "aha2940au.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(AHA2940AU, aha2940au_scsi_device,   "aha2940au",   "Adaptec AHA-2940AU PCI SCSI controller card")
+
+
+
+aha2940au_scsi_device::aha2940au_scsi_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_scsi_rom(*this, "scsi_rom")
+{
+	// TODO: unknown revision & class code
+	set_ids(0x90046178, 0x00, 0x010700, 0x90046178);
+}
+
+aha2940au_scsi_device::aha2940au_scsi_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
+	: aha2940au_scsi_device(mconfig, AHA2940AU, tag, owner, clock)
+{
+}
+
+ROM_START( aha2940au )
+	ROM_REGION32_LE( 0x8000, "scsi_rom", ROMREGION_ERASEFF )
+	ROM_SYSTEM_BIOS( 0, "v1.30", "AHA-2940AU (v1.30)" )
+	// "589247-00_c_bios_2400_(C)1996_v1.30.u3"
+	ROMX_LOAD( "589247-00.u3", 0x0000, 0x8000, CRC(de00492b) SHA1(a6015bcd51e51015a5710d7ac1929e28bf033db4), ROM_BIOS(0) )
+ROM_END
+
+const tiny_rom_entry *aha2940au_scsi_device::device_rom_region() const
+{
+	return ROM_NAME(aha2940au);
+}
+
+void aha2940au_scsi_device::device_add_mconfig(machine_config &config)
+{
+	// TODO: AIC-7860Q
+}
+
+void aha2940au_scsi_device::device_start()
+{
+	pci_card_device::device_start();
+
+	// TODO: unknown BAR setup
+//  add_map( size, M_MEM, FUNC(aha2940au_scsi_device::map));
+
+	add_rom((u8 *)m_scsi_rom->base(), 0x8000);
+	expansion_rom_base = 0xc8000;
+
+	// TODO: unknown irq pin
+//  intr_pin = 1;
+}
+
+void aha2940au_scsi_device::device_reset()
+{
+	pci_card_device::device_reset();
+
+	// TODO: unknown startup state
+	command = 0x0000;
+	status = 0x0200;
+
+	remap_cb();
+}
+
+void aha2940au_scsi_device::config_map(address_map &map)
+{
+	pci_card_device::config_map(map);
+	// ...
+}

src/devices/bus/pci/aha2940au.h

@@ -0,0 +1,40 @@
+// license:BSD-3-Clause
+// copyright-holders:
+
+#ifndef MAME_BUS_PCI_AHA2940AU_H
+#define MAME_BUS_PCI_AHA2940AU_H
+
+#pragma once
+
+#include "pci_slot.h"
+
+class aha2940au_scsi_device : public pci_card_device
+{
+public:
+	aha2940au_scsi_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
+
+	static constexpr feature_type unemulated_features() { return feature::MEDIA; }
+
+protected:
+	aha2940au_scsi_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;
+
+	required_memory_region m_scsi_rom;
+
+private:
+	// ...
+};
+
+DECLARE_DEVICE_TYPE(AHA2940AU, aha2940au_scsi_device)
+
+#endif // MAME_BUS_PCI_AHA2940AU_H

src/devices/bus/pci/pci_slot.cpp

@@ -6,6 +6,7 @@
 #include "emu.h"
 #include "pci_slot.h"
 
+#include "aha2940au.h"
 #include "ds2416.h"
 #include "geforce.h"
 #include "mga2064w.h"
@@ -98,6 +99,8 @@ void pci_card_device::irq_pin_w(offs_t line, int state)
 void pci_cards(device_slot_interface &device)
 {
 	// 0x01 - mass storage controllers
+	device.option_add("aha2940au",      AHA2940AU);
+
 	// 0x02 - network controllers
 	device.option_add("rtl8029as",      RTL8029AS_PCI);
 	device.option_add("rtl8139",        RTL8139_PCI);