brother/pn8800fxb: Add buzzer and battery state

src/mame/brother/pn8800fxb.cpp

@@ -20,7 +20,6 @@
     - Fix ROM banking (ROM self-test shows NG)
     - Improve video emulation (offset, modes, etc.)
     - Floppy
-    - Buzzer
     - Centronics
     - Modem
     - Soft power off/on
@@ -41,9 +40,11 @@
 #include "cpu/z180/z180.h"
 #include "machine/rp5c01.h"
 #include "machine/timer.h"
+#include "sound/beep.h"
 
 #include "emupal.h"
 #include "screen.h"
+#include "speaker.h"
 
 namespace {
 
@@ -62,6 +63,7 @@ public:
 		m_palette(*this, "palette"),
 		m_gfxdecode(*this, "gfxdecode"),
 		m_keys(*this, "KO%u", 0U),
+		m_buzzer(*this, "buzzer"),
 		m_lomem_view(*this, "lomem")
 	{ }
 
@@ -77,6 +79,7 @@ private:
 	required_device<palette_device> m_palette;
 	required_device<gfxdecode_device> m_gfxdecode;
 	required_ioport_array<9> m_keys;
+	required_device<beep_device> m_buzzer;
 	memory_view m_lomem_view;
 
 	uint8_t m_key_select;
@@ -109,6 +112,8 @@ private:
 	void video_offset_w(uint8_t data);
 	void cursor_ctrl_w(uint8_t data);
 
+	void buzzer_w(uint8_t data);
+
 	void mem_change_w(uint8_t data);
 	void bank_select_w(uint8_t data);
 	void int_ack_w(uint8_t data);
@@ -152,19 +157,19 @@ void pn8800fxb_state::io_map(address_map &map)
 	map(0x77, 0x77).w(FUNC(pn8800fxb_state::cursor_ctrl_w));
 	// 78-7f mode select
 	// 80-87 fdc
-	// 88-8f input
+	map(0x88, 0x88).mirror(0x07).portr("misc");
 	map(0x90, 0x90).mirror(0x07).w(FUNC(pn8800fxb_state::mem_change_w));
 	// 98-9f rs break
 	// a0-a7 rs232
 	map(0xa8, 0xa8).mirror(0x07).nopr(); // "not used" - but read often
-	// b0-b7 power supply
+	map(0xb0, 0xb0).mirror(0x07).portr("power");
 	map(0xb8, 0xb8).rw(FUNC(pn8800fxb_state::keyboard_r), FUNC(pn8800fxb_state::keyboard_w));
 	// c0-c7 cdcc data
 	// c8-cf cdcc control
 	map(0xd0, 0xdf).rw("rtc", FUNC(tc8521_device::read), FUNC(tc8521_device::write));
 	map(0xe0, 0xe0).mirror(0x07).w(FUNC(pn8800fxb_state::bank_select_w));
 	// e8-ef ga test
-	// f0-f7 buzzer
+	map(0xf0, 0xf0).mirror(0x07).w(FUNC(pn8800fxb_state::buzzer_w));
 	map(0xf8, 0xf8).mirror(0x07).w(FUNC(pn8800fxb_state::int_ack_w));
 }
 
@@ -174,6 +179,23 @@ void pn8800fxb_state::io_map(address_map &map)
 //**************************************************************************
 
 static INPUT_PORTS_START( pn8800fxb )
+	PORT_START("misc")
+	// 0x01 sp3
+	// 0x02 index
+	PORT_CONFNAME(0x04, 0x00, "AC Adaptor")
+	PORT_CONFSETTING(   0x00, "Good")
+	PORT_CONFSETTING(   0x04, "Not Good")
+	// 0x08 sp1
+
+	PORT_START("power")
+	PORT_CONFNAME(0x01, 0x00, "Li Battery")
+	PORT_CONFSETTING(   0x00, "Good")
+	PORT_CONFSETTING(   0x01, "Not Good")
+	PORT_CONFNAME(0x06, 0x00, "NiCd Battery")
+	PORT_CONFSETTING(   0x00, "Good")
+	PORT_CONFSETTING(   0x02, "Low")
+	PORT_CONFSETTING(   0x04, "Not Good")
+
 	PORT_START("KO0")
 	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_LSHIFT)    PORT_CODE(KEYCODE_RSHIFT)      PORT_CHAR(UCHAR_SHIFT_1)
 	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_LEFT)      PORT_CHAR(UCHAR_MAMEKEY(LEFT)) PORT_NAME("\xe2\x86\x90  EXPR") // ←
@@ -491,6 +513,20 @@ static GFXDECODE_START( gfx )
 GFXDECODE_END
 
 
+//**************************************************************************
+//  AUDIO EMULATION
+//**************************************************************************
+
+void pn8800fxb_state::buzzer_w(uint8_t data)
+{
+	// 7-------  buzzer
+	// -654321-  not used
+	// -------0  4khzoff
+
+	m_buzzer->set_state(BIT(data, 7));
+}
+
+
 //**************************************************************************
 //  MACHINE EMULATION
 //**************************************************************************
@@ -583,6 +619,10 @@ void pn8800fxb_state::pn8800fxb(machine_config &config)
 
 	GFXDECODE(config, m_gfxdecode, m_palette, gfx);
 
+	// sound hardware
+	SPEAKER(config, "mono").front_center();
+	BEEP(config, m_buzzer, 4'000).add_route(ALL_OUTPUTS, "mono", 1.0); // 4.0 kHz generated by the gate array
+
 	TC8521(config, "rtc", XTAL(32'768));
 	// alarm output connected to auto power-on
 }
@@ -606,4 +646,4 @@ ROM_END
 //**************************************************************************
 
 //    YEAR  NAME    PARENT  COMPAT  MACHINE    INPUT      CLASS            INIT        COMPANY     FULLNAME      FLAGS
-COMP( 1996, pn8800, 0,      0,      pn8800fxb, pn8800fxb, pn8800fxb_state, empty_init, "Brother",  "PN-8800FXB", MACHINE_NOT_WORKING | MACHINE_NO_SOUND | MACHINE_SUPPORTS_SAVE )
+COMP( 1996, pn8800, 0,      0,      pn8800fxb, pn8800fxb, pn8800fxb_state, empty_init, "Brother",  "PN-8800FXB", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE )