nwk-tr.cpp: Wheel FFB outputs for Thrill Drive, Racing Jam 1/2 (#14593)

Author: Endprodukt

src/mame/konami/nwk-tr.cpp

@@ -192,9 +192,9 @@ GN676 PWB(B)B
      TEXELFX - 3DFX 500-0004-02 BD0665.1 TMU (QFP208)
      PIXELFX - 3DFX 500-0003-03 F001701.1 FBI (QFP240)
       001604 - Konami Custom (QFP208)
-       MC44200FT - Motorola MC44200FT 3 Channel Video D/A Converter (QFP44)
+   MC44200FT - Motorola MC44200FT 3 Channel Video D/A Converter (QFP44)
      MACH111 - AMD MACH111 CPLD (Stamped '03161A', PLCC44)
-    PLCC44_SOCKET - empty PLCC44 socket
+   PLCC44_SOCKET - empty PLCC44 socket
       AV9170 - Integrated Circuit Systems Inc. Clock Multiplier (SOIC8)
       AM7201 - AMD AM7201 FIFO (PLCC32)
         PAL1 - AMD PALCE16V8 (stamped 'N676B4', DIP20)
@@ -271,6 +271,7 @@ class nwktr_state : public driver_device
 		m_dsw(*this, "DSW"),
 		m_analog(*this, "ANALOG%u", 1U),
 		m_pcb_digit(*this, "pcbdigit%u", 0U),
+		m_wheel_motor(*this, "wheel_motor"),
 		m_cg_view(*this, "cg_view")
 	{ }
 
@@ -306,6 +307,7 @@ class nwktr_state : public driver_device
 	required_ioport m_dsw;
 	required_ioport_array<5> m_analog;
 	output_finder<2> m_pcb_digit;
+	output_finder<> m_wheel_motor;
 	memory_view m_cg_view;
 
 	bool m_sound_irq_enabled = false;
@@ -334,7 +336,7 @@ uint32_t nwktr_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap,
 	int const board = m_exrgb ? 1 : 0;
 
 	m_voodoo[board]->update(bitmap, cliprect);
-	m_k001604[0]->draw_front_layer(screen, bitmap, cliprect);   // K001604 on slave board doesn't seem to output anything. Bug or intended?
+	m_k001604[0]->draw_front_layer(screen, bitmap, cliprect); // K001604 on slave board doesn't seem to output anything. Bug or intended?
 
 	return 0;
 }
@@ -377,7 +379,12 @@ void nwktr_state::sysreg_w(offs_t offset, uint8_t data)
 	{
 		case 0:
 		case 1:
-			m_pcb_digit[offset] = bitswap<7>(~data , 0, 1, 2, 3, 4, 5, 6);
+			m_pcb_digit[offset] = bitswap<7>(~data, 0, 1, 2, 3, 4, 5, 6);
+			break;
+
+		case 2:
+			// NWK-TR drive commands
+			m_wheel_motor = data;
 			break;
 
 		case 3:
@@ -416,7 +423,7 @@ void nwktr_state::sysreg_w(offs_t offset, uint8_t data)
 			// Racing Jam sets CG board ID to 2 when writing to the tilemap chip.
 			// This could mean broadcast to both CG boards?
 
-			m_exrgb = BIT(data, 0);       // Select which CG Board outputs signal
+			m_exrgb = BIT(data, 0); // Select which CG Board outputs signal
 
 			m_cg_view.select(m_konppc->get_cgboard_id() ? 1 : 0);
 			break;
@@ -449,6 +456,7 @@ void nwktr_state::soundtimer_ack_w(uint16_t data)
 void nwktr_state::machine_start()
 {
 	m_pcb_digit.resolve();
+	m_wheel_motor.resolve();
 
 	// set conservative DRC options
 	m_maincpu->ppcdrc_set_options(PPCDRC_COMPATIBLE_OPTIONS);