trunk/src/mess/drivers/fb01.c
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| 20 | 20 | public: |
| 21 | 21 | fb01_state(const machine_config &mconfig, device_type type, const char *tag) |
| 22 | 22 | : driver_device(mconfig, type, tag) |
| 23 | , m_maincpu(*this, "maincpu") |
| 23 | 24 | , m_upd71051(*this, "upd71051") |
| 24 | 25 | , m_midi_thru(*this, "mdthru") |
| 26 | , m_ym2164_irq(CLEAR_LINE) |
| 27 | , m_upd71051_txrdy(CLEAR_LINE) |
| 28 | , m_upd71051_rxrdy(CLEAR_LINE) |
| 25 | 29 | { |
| 26 | 30 | } |
| 27 | 31 | |
| 28 | 32 | DECLARE_WRITE_LINE_MEMBER(write_usart_clock); |
| 29 | 33 | DECLARE_WRITE_LINE_MEMBER(midi_in); |
| 34 | DECLARE_WRITE_LINE_MEMBER(ym2164_irq_w); |
| 35 | DECLARE_WRITE_LINE_MEMBER(upd71051_txrdy_w); |
| 36 | DECLARE_WRITE_LINE_MEMBER(upd71051_rxrdy_w); |
| 30 | 37 | |
| 38 | virtual void machine_start(); |
| 31 | 39 | virtual void machine_reset(); |
| 32 | 40 | |
| 33 | 41 | private: |
| 42 | required_device<z80_device> m_maincpu; |
| 34 | 43 | required_device<i8251_device> m_upd71051; |
| 35 | 44 | required_device<midi_port_device> m_midi_thru; |
| 45 | int m_ym2164_irq; |
| 46 | int m_upd71051_txrdy; |
| 47 | int m_upd71051_rxrdy; |
| 48 | |
| 49 | void update_int(); |
| 36 | 50 | }; |
| 37 | 51 | |
| 38 | 52 | |
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| 75 | 89 | INPUT_PORTS_END |
| 76 | 90 | |
| 77 | 91 | |
| 92 | void fb01_state::machine_start() |
| 93 | { |
| 94 | save_item(NAME(m_ym2164_irq)); |
| 95 | save_item(NAME(m_upd71051_txrdy)); |
| 96 | save_item(NAME(m_upd71051_rxrdy)); |
| 97 | } |
| 98 | |
| 99 | |
| 78 | 100 | void fb01_state::machine_reset() |
| 79 | 101 | { |
| 80 | 102 | m_upd71051->write_cts(0); |
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| 96 | 118 | } |
| 97 | 119 | |
| 98 | 120 | |
| 121 | WRITE_LINE_MEMBER(fb01_state::ym2164_irq_w) |
| 122 | { |
| 123 | m_ym2164_irq = state; |
| 124 | update_int(); |
| 125 | } |
| 126 | |
| 127 | |
| 128 | WRITE_LINE_MEMBER(fb01_state::upd71051_txrdy_w) |
| 129 | { |
| 130 | m_upd71051_txrdy = state; |
| 131 | update_int(); |
| 132 | } |
| 133 | |
| 134 | |
| 135 | WRITE_LINE_MEMBER(fb01_state::upd71051_rxrdy_w) |
| 136 | { |
| 137 | m_upd71051_rxrdy = state; |
| 138 | update_int(); |
| 139 | } |
| 140 | |
| 141 | |
| 142 | void fb01_state::update_int() |
| 143 | { |
| 144 | m_maincpu->set_input_line(0, (m_ym2164_irq || m_upd71051_txrdy || m_upd71051_rxrdy) ? ASSERT_LINE : CLEAR_LINE); |
| 145 | } |
| 146 | |
| 147 | |
| 99 | 148 | static HD44780_PIXEL_UPDATE(fb01_pixel_update) |
| 100 | 149 | { |
| 101 | 150 | if ( pos < 8 && line < 2 ) |
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| 130 | 179 | MCFG_HD44780_PIXEL_UPDATE_CB(fb01_pixel_update) |
| 131 | 180 | |
| 132 | 181 | MCFG_DEVICE_ADD("upd71051", I8251, XTAL_4MHz) |
| 133 | | MCFG_I8251_RXRDY_HANDLER(INPUTLINE("maincpu", INPUT_LINE_IRQ0)) MCFG_DEVCB_XOR(1) // inverted -> Z80 INT |
| 134 | | MCFG_I8251_TXRDY_HANDLER(INPUTLINE("maincpu", INPUT_LINE_IRQ0)) MCFG_DEVCB_XOR(1) // inverted -> Z80 INT |
| 182 | MCFG_I8251_RXRDY_HANDLER(WRITELINE(fb01_state, upd71051_rxrdy_w)) |
| 183 | MCFG_I8251_TXRDY_HANDLER(WRITELINE(fb01_state, upd71051_txrdy_w)) |
| 135 | 184 | MCFG_I8251_TXD_HANDLER(DEVWRITELINE("mdout", midi_port_device, write_txd)) |
| 136 | 185 | |
| 137 | 186 | MCFG_DEVICE_ADD("usart_clock", CLOCK, XTAL_4MHz / 8) // 500KHz |
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| 146 | 195 | |
| 147 | 196 | MCFG_SPEAKER_STANDARD_STEREO("lspeaker", "rspeaker") |
| 148 | 197 | MCFG_YM2151_ADD("ym2164", XTAL_4MHz) |
| 149 | | MCFG_YM2151_IRQ_HANDLER(INPUTLINE("maincpu", INPUT_LINE_IRQ0)) |
| 198 | MCFG_YM2151_IRQ_HANDLER(WRITELINE(fb01_state, ym2164_irq_w)) |
| 150 | 199 | MCFG_SOUND_ROUTE(0, "lspeaker", 1.00) |
| 151 | 200 | MCFG_SOUND_ROUTE(1, "rspeaker", 1.00) |
| 152 | 201 | |