adb: add skeleton for model A9M0331 ADB mouse. [R. Belmont, Al Kossow]

scripts/src/bus.lua

@@ -201,6 +201,8 @@ if (BUSES["ADB"]~=null) then
 		MAME_DIR .. "src/devices/bus/adb/adb.h",
 		MAME_DIR .. "src/devices/bus/adb/adbhle.cpp",
 		MAME_DIR .. "src/devices/bus/adb/adbhle.h",
+		MAME_DIR .. "src/devices/bus/adb/a9m0331.cpp",
+		MAME_DIR .. "src/devices/bus/adb/a9m0331.h",
 	}
 end
 

src/devices/bus/adb/a9m0331.cpp

@@ -0,0 +1,125 @@
+// license:BSD-3-Clause
+// copyright-holders: R. Belmont
+/*********************************************************************
+
+    a9m0331.cpp
+    Apple standard ADB mouse
+    Skeleton by R. Belmont
+
+    TODO: Everything.
+    What 6805 or 68705 sub-model is this?
+    Is the boot vector actually correct?
+
+*********************************************************************/
+
+#include "emu.h"
+#include "a9m0331.h"
+
+DEFINE_DEVICE_TYPE(ADB_A9M0331, a9m0331_device, "a9m0331", "Apple ADB Mouse (A9M0331)");
+
+ROM_START(a9m0331)
+	ROM_REGION(0x800, "mcu", 0)
+	ROM_LOAD( "lsc84488p_1986_3.0.bin", 0x000000, 0x000800, CRC(572a11e0) SHA1(caab6c60b18670e5ea597e35e526032e33b6e8c7) )
+	ROM_LOAD( "zc84506p_1987_ea_3.2_trim.bin", 0x000000, 0x000800, CRC(85f858d9) SHA1(61ebad9953f4f88b6fcabf498f3875918493d138) )
+ROM_END
+
+static INPUT_PORTS_START(a9m0331)
+	PORT_START("button")
+	PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_BUTTON1) PORT_NAME("Mouse Button") PORT_CODE(MOUSECODE_BUTTON1)
+
+	PORT_START("mousex")
+	PORT_BIT(0xff, 0x00, IPT_MOUSE_X) PORT_SENSITIVITY(40) PORT_KEYDELTA(0) PORT_PLAYER(1)
+
+	PORT_START("mousey")
+	PORT_BIT(0xff, 0x00, IPT_MOUSE_Y) PORT_SENSITIVITY(40) PORT_KEYDELTA(0) PORT_PLAYER(1)
+INPUT_PORTS_END
+
+/***************************************************************************
+    DEVICE CONFIGURATION
+***************************************************************************/
+
+/*-------------------------------------------------
+    input_ports - device-specific input ports
+-------------------------------------------------*/
+ioport_constructor a9m0331_device::device_input_ports() const
+{
+	return INPUT_PORTS_NAME(a9m0331);
+}
+
+/*-------------------------------------------------
+    device_add_mconfig - device-specific
+    machine configurations
+-------------------------------------------------*/
+void a9m0331_device::device_add_mconfig(machine_config &config)
+{
+	M68705P3(config, m_mcu, 2048000);
+	m_mcu->porta_r().set(FUNC(a9m0331_device::mcu_port_a_r));
+	m_mcu->portb_r().set(FUNC(a9m0331_device::mcu_port_b_r));
+	m_mcu->portc_r().set(FUNC(a9m0331_device::mcu_port_c_r));
+	m_mcu->porta_w().set(FUNC(a9m0331_device::mcu_port_a_w));
+	m_mcu->portb_w().set(FUNC(a9m0331_device::mcu_port_b_w));
+	m_mcu->portc_w().set(FUNC(a9m0331_device::mcu_port_c_w));
+}
+
+/*-------------------------------------------------
+    rom_region - device-specific ROM region
+-------------------------------------------------*/
+const tiny_rom_entry *a9m0331_device::device_rom_region() const
+{
+	return ROM_NAME(a9m0331);
+}
+
+/***************************************************************************
+    DEVICE IMPLEMENTATION
+***************************************************************************/
+
+a9m0331_device::a9m0331_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
+	adb_device(mconfig, ADB_A9M0331, tag, owner, clock),
+	adb_slot_card_interface(mconfig, *this, DEVICE_SELF),
+	m_mcu(*this, "mcu")
+{
+}
+
+void a9m0331_device::device_start()
+{
+	adb_device::device_start();
+}
+
+void a9m0331_device::device_reset()
+{
+	adb_device::device_reset();
+}
+
+void a9m0331_device::adb_w(int state)
+{
+}
+
+void a9m0331_device::mcu_port_a_w(u8 data)
+{
+	logerror("%02x to port A\n", data);
+}
+
+void a9m0331_device::mcu_port_b_w(u8 data)
+{
+	logerror("%02x to port B\n", data);
+}
+
+void a9m0331_device::mcu_port_c_w(u8 data)
+{
+	logerror("%02x to port C\n", data);
+}
+
+u8 mcu_port_a_r()
+{
+	return 0xff;
+}
+
+u8 mcu_port_b_r()
+{
+	return 0xff;
+}
+
+u8 mcu_port_c_r()
+{
+	return 0xff;
+}

src/devices/bus/adb/a9m0331.h

@@ -0,0 +1,42 @@
+// license:BSD-3-Clause
+// copyright-holders: R. Belmont
+
+// a9m0331.h - Apple ADB mouse
+
+#ifndef MAME_BUS_ADB_A9M0331_H
+#define MAME_BUS_ADB_A9M0331_H
+
+#pragma once
+
+#include "adb.h"
+#include "cpu/m6805/m68705.h"
+
+class a9m0331_device : public adb_device, public adb_slot_card_interface
+{
+public:
+	a9m0331_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
+
+protected:
+	virtual void device_start() override;
+	virtual void device_reset() override;
+
+	virtual const tiny_rom_entry *device_rom_region() const override;
+	virtual ioport_constructor device_input_ports() const override;
+	virtual void device_add_mconfig(machine_config &config) override;
+
+	virtual void adb_w(int state) override;
+
+	required_device<m68705p_device> m_mcu;
+
+private:
+	void mcu_port_a_w(u8 data);
+	void mcu_port_b_w(u8 data);
+	void mcu_port_c_w(u8 data);
+	u8 mcu_port_a_r();
+	u8 mcu_port_b_r();
+	u8 mcu_port_c_r();
+};
+
+DECLARE_DEVICE_TYPE(ADB_A9M0331, a9m0331_device)
+
+#endif

src/devices/bus/adb/adb.cpp

@@ -11,6 +11,7 @@
 #include "adb.h"
 
 #include "adbhle.h"
+#include "a9m0331.h"
 
 DEFINE_DEVICE_TYPE(ADB_CONNECTOR, adb_connector, "adbslot", "ADB connector")
 
@@ -61,4 +62,5 @@ void adb_device::device_reset()
 void adb_device::default_devices(device_slot_interface &device)
 {
 	device.option_add("hle", ADB_HLE);
+	device.option_add("a9m0331", ADB_A9M0331);
 }

src/mame/machine/egret.cpp

@@ -87,6 +87,10 @@ void egret_device::device_add_mconfig(machine_config &config)
 {
 	M68HC05EG(config, m_maincpu, XTAL(32'768)*128);  // Intended to run 4.1 MHz, the ADB timings in uS are twice as long as spec at 2.1
 	m_maincpu->set_addrmap(AS_PROGRAM, &egret_device::egret_map);
+
+	#if USE_BUS_ADB
+	ADB_CONNECTOR(config, "adb1", adb_device::default_devices, "a9m0331", false);
+	#endif
 }
 
 const tiny_rom_entry *egret_device::device_rom_region() const