Devicify Sega 315-5338A

scripts/target/mame/arcade.lua

@@ -3368,6 +3368,8 @@ files {
 	MAME_DIR .. "src/mame/video/zaxxon.cpp",
 	MAME_DIR .. "src/mame/machine/315_5296.cpp",
 	MAME_DIR .. "src/mame/machine/315_5296.h",
+	MAME_DIR .. "src/mame/machine/315-5338a.cpp",
+	MAME_DIR .. "src/mame/machine/315-55338a.h",
 	MAME_DIR .. "src/mame/machine/fd1089.cpp",
 	MAME_DIR .. "src/mame/machine/fd1089.h",
 	MAME_DIR .. "src/mame/machine/fd1094.cpp",

src/mame/machine/315-5338a.cpp

@@ -0,0 +1,117 @@
+// license: BSD-3-Clause
+// copyright-holders: Dirk Best
+/***************************************************************************
+
+    Sega 315-5338A
+
+    I/O Controller
+
+***************************************************************************/
+
+#include "315-5338a.h"
+#include "emu.h"
+
+
+//**************************************************************************
+//  CONSTANTS/MACROS
+//**************************************************************************
+
+#define VERBOSE 0
+
+
+//**************************************************************************
+//  DEVICE DEFINITIONS
+//**************************************************************************
+
+DEFINE_DEVICE_TYPE(SEGA_315_5338A, sega_315_5338a_device, "315_5338a", "315-5338A I/O Controller")
+
+
+//**************************************************************************
+//  LIVE DEVICE
+//**************************************************************************
+
+//-------------------------------------------------
+//  sega_315_5338a_device - constructor
+//-------------------------------------------------
+
+sega_315_5338a_device::sega_315_5338a_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
+	device_t(mconfig, SEGA_315_5338A, tag, owner, clock),
+	m_an_cb{ {*this}, {*this}, {*this}, {*this}, {*this}, {*this}, {*this}, {*this} },
+	m_di_cb{ {*this}, {*this}, {*this} },
+	m_do_cb(*this),
+	m_out(0xff)
+{
+}
+
+//-------------------------------------------------
+//  device_start - device-specific startup
+//-------------------------------------------------
+
+void sega_315_5338a_device::device_start()
+{
+	// resolve callbacks
+	for (int i = 0; i < 8; i++)
+		m_an_cb[i].resolve_safe(0xff);
+
+	for (int i = 0; i < 3; i++)
+		m_di_cb[i].resolve_safe(0xff);
+
+	m_do_cb.resolve_safe();
+}
+
+
+//**************************************************************************
+//  INTERFACE
+//**************************************************************************
+
+READ8_MEMBER( sega_315_5338a_device::read )
+{
+	uint8_t data = 0xff;
+
+	switch (offset)
+	{
+	// analog inputs
+	case 0x00: data = m_an_cb[0](0); break;
+	case 0x01: data = m_an_cb[1](0); break;
+	case 0x02: data = m_an_cb[2](0); break;
+	case 0x03: data = m_an_cb[3](0); break;
+	case 0x04: data = m_an_cb[4](0); break;
+	case 0x05: data = m_an_cb[5](0); break;
+	case 0x06: data = m_an_cb[6](0); break;
+	case 0x07: data = m_an_cb[7](0); break;
+
+	// digital inputs
+	case 0x08: data = m_di_cb[0](0); break;
+	case 0x09: data = m_di_cb[1](0); break;
+	case 0x0a: data = m_di_cb[2](0); break;
+
+	// unknown
+	case 0x0b: break;
+	case 0x0c: break;
+	case 0x0d: break;
+	case 0x0e: break; // bit 7654 input (vr board 0-3)
+
+	// digital output
+	case 0x0f: data = m_out;
+	}
+
+	if (VERBOSE)
+		logerror("RD %02x = %02x\n", offset, data);
+
+	return data;
+}
+
+WRITE8_MEMBER( sega_315_5338a_device::write )
+{
+	if (VERBOSE)
+		logerror("WR %02x = %02x\n", offset, data);
+
+	switch (offset)
+	{
+	// digital output
+	case 0x0f:
+		m_out = data;
+		m_do_cb(m_out);
+		break;
+	}
+}

src/mame/machine/315-5338a.h

@@ -0,0 +1,104 @@
+// license: BSD-3-Clause
+// copyright-holders: Dirk Best
+/***************************************************************************
+
+    Sega 315-5338A
+
+    I/O Controller
+
+    Custom 100-pin QFP LSI. Supports 8 analog channels, 3 digital 8-bit
+    input ports, 1 digital 8-bit output port and a serial mode (and
+    probably more).
+
+	TODO:
+	- Serial/remote mode
+
+***************************************************************************/
+
+#ifndef MAME_MACHINE_315_5338A_H
+#define MAME_MACHINE_315_5338A_H
+
+#pragma once
+
+
+//**************************************************************************
+//  INTERFACE CONFIGURATION MACROS
+//**************************************************************************
+
+#define MCFG_315_5338A_AN0_CB(_devcb) \
+	devcb = &downcast<sega_315_5338a_device &>(*device).set_an_callback(DEVCB_##_devcb, 0);
+
+#define MCFG_315_5338A_AN1_CB(_devcb) \
+	devcb = &downcast<sega_315_5338a_device &>(*device).set_an_callback(DEVCB_##_devcb, 1);
+
+#define MCFG_315_5338A_AN2_CB(_devcb) \
+	devcb = &downcast<sega_315_5338a_device &>(*device).set_an_callback(DEVCB_##_devcb, 2);
+
+#define MCFG_315_5338A_AN3_CB(_devcb) \
+	devcb = &downcast<sega_315_5338a_device &>(*device).set_an_callback(DEVCB_##_devcb, 3);
+
+#define MCFG_315_5338A_AN4_CB(_devcb) \
+	devcb = &downcast<sega_315_5338a_device &>(*device).set_an_callback(DEVCB_##_devcb, 4);
+
+#define MCFG_315_5338A_AN5_CB(_devcb) \
+	devcb = &downcast<sega_315_5338a_device &>(*device).set_an_callback(DEVCB_##_devcb, 5);
+
+#define MCFG_315_5338A_AN6_CB(_devcb) \
+	devcb = &downcast<sega_315_5338a_device &>(*device).set_an_callback(DEVCB_##_devcb, 6);
+
+#define MCFG_315_5338A_AN7_CB(_devcb) \
+	devcb = &downcast<sega_315_5338a_device &>(*device).set_an_callback(DEVCB_##_devcb, 7);
+
+#define MCFG_315_5338A_DI0_CB(_devcb) \
+	devcb = &downcast<sega_315_5338a_device &>(*device).set_di_callback(DEVCB_##_devcb, 0);
+
+#define MCFG_315_5338A_DI1_CB(_devcb) \
+	devcb = &downcast<sega_315_5338a_device &>(*device).set_di_callback(DEVCB_##_devcb, 1);
+
+#define MCFG_315_5338A_DI2_CB(_devcb) \
+	devcb = &downcast<sega_315_5338a_device &>(*device).set_di_callback(DEVCB_##_devcb, 2);
+
+#define MCFG_315_5338A_DO_CB(_devcb) \
+	devcb = &downcast<sega_315_5338a_device &>(*device).set_do_callback(DEVCB_##_devcb);
+
+
+//**************************************************************************
+//  TYPE DEFINITIONS
+//**************************************************************************
+
+class sega_315_5338a_device : public device_t
+{
+public:
+	// construction/destruction
+	sega_315_5338a_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
+
+	// configuration
+	template <class Object> devcb_base &set_an_callback(Object &&cb, int index)
+	{ return m_an_cb[index].set_callback(std::forward<Object>(cb)); }
+
+	template <class Object> devcb_base &set_di_callback(Object &&cb, int index)
+	{ return m_di_cb[index].set_callback(std::forward<Object>(cb)); }
+
+	template <class Object> devcb_base &set_do_callback(Object &&cb)
+	{ return m_do_cb.set_callback(std::forward<Object>(cb)); }
+
+	DECLARE_READ8_MEMBER(read);
+	DECLARE_WRITE8_MEMBER(write);
+
+protected:
+	// device-level overrides
+	virtual void device_start() override;
+
+private:
+	// callbacks
+	devcb_read8 m_an_cb[8];
+	devcb_read8 m_di_cb[3];
+	devcb_write8 m_do_cb;
+
+	uint8_t m_out;
+};
+
+// device type definition
+DECLARE_DEVICE_TYPE(SEGA_315_5338A, sega_315_5338a_device)
+
+#endif // MAME_MACHINE_315_5338A_H