diff options
author | AJR <ajrhacker@users.noreply.github.com> | 2022-06-04 21:10:12 -0400 |
---|---|---|
committer | AJR <ajrhacker@users.noreply.github.com> | 2022-06-04 21:10:12 -0400 |
commit | fd82da23ef12abdaf7d5e9036756894c471dbaa9 (patch) | |
tree | ea7fb0beaf9014c3d3889fa9ef3b07775c8d4027 /src/mame/machine | |
parent | 8c237a7dcabf44fe56530d6cd7334792436bb1c4 (diff) |
europc, europc2: Low-level emulation of built-in keyboard
Diffstat (limited to 'src/mame/machine')
-rw-r--r-- | src/mame/machine/europc_kbd.cpp | 310 | ||||
-rw-r--r-- | src/mame/machine/europc_kbd.h | 70 |
2 files changed, 380 insertions, 0 deletions
diff --git a/src/mame/machine/europc_kbd.cpp b/src/mame/machine/europc_kbd.cpp new file mode 100644 index 00000000000..a1b0d3030f0 --- /dev/null +++ b/src/mame/machine/europc_kbd.cpp @@ -0,0 +1,310 @@ +// license:BSD-3-Clause +// copyright-holders:AJR +/********************************************************************** + + Schneider EURO PC built-in 86-key keyboard + + This keyboard was produced with several different European + layouts, including of course a German QWERTZ version. Currently a + British layout is provided. + + Though the clocked serial interface is basically PC/XT-compatible, + there is also a separate reset output (which is triggered at + startup or by pressing Ctrl+Alt+Backspace), and the MCU clock is + derived from the same XTAL used for the onboard FDC. + + Note that the column strobes for the key matrix are fake open + drain outputs produced by manipulating DDRA and DDRC rather than + the port latches. + +**********************************************************************/ + +#include "emu.h" +#include "europc_kbd.h" + +#include "cpu/m6805/m68705.h" + +//************************************************************************** +// LLE KEYBOARD DEVICE +//************************************************************************** + +DEFINE_DEVICE_TYPE(EUROPC_KEYBOARD, europc_keyboard_device, "europc_kbd", "EURO PC Keyboard") + +europc_keyboard_device::europc_keyboard_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock) + : device_t(mconfig, EUROPC_KEYBOARD, tag, owner, clock) + , m_mcu(*this, "mcu") + , m_keys(*this, "COLUMN%d", 1U) + , m_leds(*this, "led%d", 1U) + , m_kbdata_callback(*this) + , m_kbclk_callback(*this) + , m_reset_callback(*this) + , m_column_strobe(0x7fff) + , m_kbdata_in(true) + , m_kbclk_in(true) + , m_portb_out(0xff) +{ +} + +void europc_keyboard_device::device_resolve_objects() +{ + m_kbdata_callback.resolve_safe(); + m_kbclk_callback.resolve_safe(); + m_reset_callback.resolve_safe(); + m_leds.resolve(); +} + +void europc_keyboard_device::device_start() +{ + save_item(NAME(m_column_strobe)); + save_item(NAME(m_kbdata_in)); + save_item(NAME(m_kbclk_in)); + save_item(NAME(m_portb_out)); +} + +//************************************************************************** +// INPUT LINES +//************************************************************************** + +WRITE_LINE_MEMBER(europc_keyboard_device::kbdata_w) +{ + machine().scheduler().synchronize(timer_expired_delegate(FUNC(europc_keyboard_device::kbdata_sync_w), this), state); +} + +TIMER_CALLBACK_MEMBER(europc_keyboard_device::kbdata_sync_w) +{ + if (m_kbdata_in == param) + return; + + m_kbdata_in = param; + if (BIT(m_portb_out, 1)) + m_kbdata_callback(param); +} + +WRITE_LINE_MEMBER(europc_keyboard_device::kbclk_w) +{ + machine().scheduler().synchronize(timer_expired_delegate(FUNC(europc_keyboard_device::kbclk_sync_w), this), state); +} + +TIMER_CALLBACK_MEMBER(europc_keyboard_device::kbclk_sync_w) +{ + if (m_kbclk_in == param) + return; + + m_kbclk_in = param; + if (BIT(m_portb_out, 0)) + { + m_kbclk_callback(param); + m_mcu->set_input_line(M6805_IRQ_LINE, param ? CLEAR_LINE : ASSERT_LINE); + } +} + +//************************************************************************** +// MCU PORTS +//************************************************************************** + +void europc_keyboard_device::porta_w(offs_t offset, u8 data, u8 mem_mask) +{ + data |= ~mem_mask; + + m_column_strobe = (m_column_strobe & 0x7f00) | data; +} + +u8 europc_keyboard_device::portb_r() +{ + return 0xf0 | (m_kbdata_in ? 0x02 : 0x00) | (m_kbclk_in ? 0x01 : 0x00); +} + +void europc_keyboard_device::portb_w(offs_t offset, u8 data, u8 mem_mask) +{ + data |= ~mem_mask; + u8 portb_changed = std::exchange(m_portb_out, data) ^ data; + + if (BIT(portb_changed, 1) && m_kbdata_in) + m_kbdata_callback(BIT(data, 1)); + + if (BIT(portb_changed, 0) && m_kbclk_in) + { + m_kbclk_callback(BIT(data, 0)); + m_mcu->set_input_line(M6805_IRQ_LINE, BIT(data, 0) ? CLEAR_LINE : ASSERT_LINE); + } + + if (BIT(portb_changed, 4)) + m_reset_callback(!BIT(data, 4)); // discrete open collector + + m_leds[0] = !BIT(data, 2); // Caps Lock + m_leds[1] = !BIT(data, 3); // Num Lock +} + +void europc_keyboard_device::portc_w(offs_t offset, u8 data, u8 mem_mask) +{ + data |= ~mem_mask; + + m_column_strobe = u16(data & 0x7f) << 8 | (m_column_strobe & 0x00ff); +} + +u8 europc_keyboard_device::portd_r() +{ + u8 d = 0xff; + for (int i = 0; i < 15; i++) + if (!BIT(m_column_strobe, i)) + d &= m_keys[i]->read(); + return d; +} + +void europc_keyboard_device::device_add_mconfig(machine_config &config) +{ + m6805u2_device &mcu(M6805U2(config, m_mcu, DERIVED_CLOCK(1, 1))); + mcu.set_timer_divisor(4); // determines key repeat rate; code sets this value but mask version of MCU ignores it + mcu.set_timer_external_source(false); // TIMER pin is pulled up + mcu.porta_w().set(FUNC(europc_keyboard_device::porta_w)); + mcu.portb_r().set(FUNC(europc_keyboard_device::portb_r)); + mcu.portb_w().set(FUNC(europc_keyboard_device::portb_w)); + mcu.portc_w().set(FUNC(europc_keyboard_device::portc_w)); + mcu.portd_r().set(FUNC(europc_keyboard_device::portd_r)); +} + +//************************************************************************** +// KEY MATRIX +//************************************************************************** + +static INPUT_PORTS_START(europc_kbd) + PORT_START("COLUMN1") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(0x1b) PORT_CODE(KEYCODE_ESC) + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(F1)) PORT_CODE(KEYCODE_F1) + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(F2)) PORT_CODE(KEYCODE_F2) + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(F3)) PORT_CODE(KEYCODE_F3) + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(F4)) PORT_CODE(KEYCODE_F4) + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(F5)) PORT_CODE(KEYCODE_F5) + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(F6)) PORT_CODE(KEYCODE_F6) + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(F7)) PORT_CODE(KEYCODE_F7) + + PORT_START("COLUMN2") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('\\') PORT_CHAR('|') PORT_CODE(KEYCODE_TILDE) + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('1') PORT_CHAR('!') PORT_CODE(KEYCODE_1) + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('2') PORT_CHAR('"') PORT_CODE(KEYCODE_2) + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('3') PORT_CHAR(0x00a3) PORT_CODE(KEYCODE_3) + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('4') PORT_CHAR('$') PORT_CODE(KEYCODE_4) + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('5') PORT_CHAR('%') PORT_CODE(KEYCODE_5) + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('6') PORT_CHAR('^') PORT_CODE(KEYCODE_6) + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('7') PORT_CHAR('&') PORT_CODE(KEYCODE_7) + + PORT_START("COLUMN3") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Q") PORT_CHAR('q') PORT_CHAR('Q') PORT_CODE(KEYCODE_Q) + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("W") PORT_CHAR('w') PORT_CHAR('W') PORT_CODE(KEYCODE_W) + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("E") PORT_CHAR('e') PORT_CHAR('E') PORT_CODE(KEYCODE_E) + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("R") PORT_CHAR('r') PORT_CHAR('R') PORT_CODE(KEYCODE_R) + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("T") PORT_CHAR('t') PORT_CHAR('T') PORT_CODE(KEYCODE_T) + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Y") PORT_CHAR('y') PORT_CHAR('Y') PORT_CODE(KEYCODE_Y) + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("U") PORT_CHAR('u') PORT_CHAR('U') PORT_CODE(KEYCODE_U) + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("I") PORT_CHAR('i') PORT_CHAR('I') PORT_CODE(KEYCODE_I) + + PORT_START("COLUMN4") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("A") PORT_CHAR('a') PORT_CHAR('A') PORT_CODE(KEYCODE_A) + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("S") PORT_CHAR('s') PORT_CHAR('S') PORT_CODE(KEYCODE_S) + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("D") PORT_CHAR('d') PORT_CHAR('D') PORT_CODE(KEYCODE_D) + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F") PORT_CHAR('f') PORT_CHAR('F') PORT_CODE(KEYCODE_F) + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("G") PORT_CHAR('g') PORT_CHAR('G') PORT_CODE(KEYCODE_G) + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("H") PORT_CHAR('h') PORT_CHAR('H') PORT_CODE(KEYCODE_H) + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("J") PORT_CHAR('j') PORT_CHAR('J') PORT_CODE(KEYCODE_J) + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("K") PORT_CHAR('k') PORT_CHAR('K') PORT_CODE(KEYCODE_K) + + PORT_START("COLUMN5") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Z") PORT_CHAR('z') PORT_CHAR('Z') PORT_CODE(KEYCODE_Z) + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("X") PORT_CHAR('x') PORT_CHAR('X') PORT_CODE(KEYCODE_X) + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("C") PORT_CHAR('c') PORT_CHAR('C') PORT_CODE(KEYCODE_C) + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("V") PORT_CHAR('v') PORT_CHAR('V') PORT_CODE(KEYCODE_V) + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("B") PORT_CHAR('b') PORT_CHAR('B') PORT_CODE(KEYCODE_B) + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("N") PORT_CHAR('n') PORT_CHAR('N') PORT_CODE(KEYCODE_N) + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("M") PORT_CHAR('m') PORT_CHAR('M') PORT_CODE(KEYCODE_M) + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(',') PORT_CHAR('<') PORT_CODE(KEYCODE_COMMA) + + PORT_START("COLUMN6") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(F8)) PORT_CODE(KEYCODE_F8) + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('9') PORT_CHAR('(') PORT_CODE(KEYCODE_9) + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('8') PORT_CHAR('*') PORT_CODE(KEYCODE_8) + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("O") PORT_CHAR('o') PORT_CHAR('O') PORT_CODE(KEYCODE_O) + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('.') PORT_CHAR('>') PORT_CODE(KEYCODE_STOP) + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("L") PORT_CHAR('l') PORT_CHAR('L') PORT_CODE(KEYCODE_L) + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('[') PORT_CHAR('{') PORT_CODE(KEYCODE_OPENBRACE) + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("P") PORT_CHAR('p') PORT_CHAR('P') PORT_CODE(KEYCODE_P) + + PORT_START("COLUMN7") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(ENTER_PAD)) PORT_CODE(KEYCODE_ENTER_PAD) + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(F11)) PORT_CODE(KEYCODE_F11) + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(PLUS_PAD)) PORT_CODE(KEYCODE_PLUS_PAD) + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(MINUS_PAD)) PORT_CODE(KEYCODE_MINUS_PAD) + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Keypad 2 " UTF8_DOWN) PORT_CHAR(UCHAR_MAMEKEY(2_PAD)) PORT_CODE(KEYCODE_2_PAD) + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Keypad 7 Home") PORT_CHAR(UCHAR_MAMEKEY(7_PAD)) PORT_CODE(KEYCODE_7_PAD) + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('-') PORT_CHAR('_') PORT_CODE(KEYCODE_MINUS) + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('\'') PORT_CHAR('@') PORT_CODE(KEYCODE_QUOTE) + + PORT_START("COLUMN8") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Keypad . Del") PORT_CHAR(UCHAR_MAMEKEY(COMMA_PAD)) PORT_CODE(KEYCODE_DEL_PAD) + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(F12)) PORT_CODE(KEYCODE_F12) + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Keypad 9 Pg Up") PORT_CHAR(UCHAR_MAMEKEY(9_PAD)) PORT_CODE(KEYCODE_9_PAD) + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Keypad * PrtSc") PORT_CHAR(UCHAR_MAMEKEY(ASTERISK)) PORT_CODE(KEYCODE_ASTERISK) + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(5_PAD)) PORT_CODE(KEYCODE_5_PAD) + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(NUMLOCK)) PORT_CODE(KEYCODE_NUMLOCK) + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('0') PORT_CHAR(')') PORT_CODE(KEYCODE_0) + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(';') PORT_CHAR(':') PORT_CODE(KEYCODE_COLON) + + PORT_START("COLUMN9") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Keypad 0 Ins") PORT_CHAR(UCHAR_MAMEKEY(0_PAD)) PORT_CODE(KEYCODE_0_PAD) + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(F10)) PORT_CODE(KEYCODE_F10) + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Keypad 6 " UTF8_RIGHT) PORT_CHAR(UCHAR_MAMEKEY(6_PAD)) PORT_CODE(KEYCODE_6_PAD) + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Scroll Lock Break") PORT_CHAR(UCHAR_MAMEKEY(SCRLOCK)) PORT_CODE(KEYCODE_SLASH_PAD) + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Keypad 1 End") PORT_CHAR(UCHAR_MAMEKEY(1_PAD)) PORT_CODE(KEYCODE_1_PAD) + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(0x08) PORT_CODE(KEYCODE_BACKSPACE) + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(']') PORT_CHAR('}') PORT_CODE(KEYCODE_CLOSEBRACE) + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('/') PORT_CHAR('?') PORT_CODE(KEYCODE_SLASH) + + PORT_START("COLUMN10") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(CAPSLOCK)) PORT_CODE(KEYCODE_RCONTROL) + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(F9)) PORT_CODE(KEYCODE_F9) + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Keypad 3 Pg Dn") PORT_CHAR(UCHAR_MAMEKEY(3_PAD)) PORT_CODE(KEYCODE_3_PAD) + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Keypad 8 " UTF8_UP) PORT_CHAR(UCHAR_MAMEKEY(8_PAD)) PORT_CODE(KEYCODE_8_PAD) + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Keypad 4 " UTF8_LEFT) PORT_CHAR(UCHAR_MAMEKEY(4_PAD)) PORT_CODE(KEYCODE_4_PAD) + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(0x0d) PORT_CODE(KEYCODE_ENTER) + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('=') PORT_CHAR('+') PORT_CODE(KEYCODE_EQUALS) + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('#') PORT_CHAR('~') PORT_CODE(KEYCODE_BACKSLASH) // to right of quote key + + PORT_START("COLUMN11") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(' ') PORT_CODE(KEYCODE_SPACE) + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(0x09) PORT_CODE(KEYCODE_TAB) + PORT_BIT(0xfc, IP_ACTIVE_LOW, IPT_UNUSED) + + PORT_START("COLUMN12") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Ctrl") PORT_CHAR(UCHAR_MAMEKEY(LCONTROL)) PORT_CODE(KEYCODE_LCONTROL) + PORT_BIT(0xfe, IP_ACTIVE_LOW, IPT_UNUSED) + + PORT_START("COLUMN13") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Shift Left") PORT_CHAR(UCHAR_SHIFT_1) PORT_CODE(KEYCODE_LSHIFT) + PORT_BIT(0xfe, IP_ACTIVE_LOW, IPT_UNUSED) + + PORT_START("COLUMN14") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Alt") PORT_CHAR(UCHAR_MAMEKEY(LALT)) PORT_CODE(KEYCODE_LALT) + PORT_BIT(0xfe, IP_ACTIVE_LOW, IPT_UNUSED) + + PORT_START("COLUMN15") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Shift Right") PORT_CHAR(UCHAR_MAMEKEY(RSHIFT)) PORT_CODE(KEYCODE_RSHIFT) + PORT_BIT(0xfe, IP_ACTIVE_LOW, IPT_UNUSED) +INPUT_PORTS_END + +ioport_constructor europc_keyboard_device::device_input_ports() const +{ + return INPUT_PORTS_NAME(europc_kbd); +} + +//************************************************************************** +// INTERNAL ROM +//************************************************************************** + +ROM_START(europc_kbd) + ROM_REGION(0x1000, "mcu", 0) + ROM_LOAD("zc86115p-mc6805u2.bin", 0x0000, 0x1000, CRC(d90c1fab) SHA1(ddb7060abddee7294723833c303090de35c1e79c)) +ROM_END + +const tiny_rom_entry *europc_keyboard_device::device_rom_region() const +{ + return ROM_NAME(europc_kbd); +} diff --git a/src/mame/machine/europc_kbd.h b/src/mame/machine/europc_kbd.h new file mode 100644 index 00000000000..3570db338e0 --- /dev/null +++ b/src/mame/machine/europc_kbd.h @@ -0,0 +1,70 @@ +// license:BSD-3-Clause +// copyright-holders:AJR + +#ifndef MAME_MACHINE_EUROPC_KBD_H +#define MAME_MACHINE_EUROPC_KBD_H + +#pragma once + + +//************************************************************************** +// TYPE DEFINITIONS +//************************************************************************** + +// ======================> europc_keyboard_device + +class europc_keyboard_device : public device_t +{ +public: + // device type constructor + europc_keyboard_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock); + + // callback configuration + auto kbdata_callback() { return m_kbdata_callback.bind(); } + auto kbclk_callback() { return m_kbclk_callback.bind(); } + auto reset_callback() { return m_reset_callback.bind(); } + + // line inputs + DECLARE_WRITE_LINE_MEMBER(kbdata_w); + DECLARE_WRITE_LINE_MEMBER(kbclk_w); + +protected: + // device-level overrides + virtual void device_resolve_objects() override; + virtual void device_start() override; + virtual ioport_constructor device_input_ports() const override; + virtual void device_add_mconfig(machine_config &config) override; + virtual const tiny_rom_entry *device_rom_region() const override; + +private: + TIMER_CALLBACK_MEMBER(kbdata_sync_w); + TIMER_CALLBACK_MEMBER(kbclk_sync_w); + + // port handlers + void porta_w(offs_t offset, u8 data, u8 mem_mask); + u8 portb_r(); + void portb_w(offs_t offset, u8 data, u8 mem_mask); + void portc_w(offs_t offset, u8 data, u8 mem_mask); + u8 portd_r(); + + // object finders + required_device<cpu_device> m_mcu; + required_ioport_array<15> m_keys; + output_finder<2> m_leds; + + // output line callbacks + devcb_write_line m_kbdata_callback; + devcb_write_line m_kbclk_callback; + devcb_write_line m_reset_callback; + + // internal state + u16 m_column_strobe; + bool m_kbdata_in; + bool m_kbclk_in; + u8 m_portb_out; +}; + +// device type declarations +DECLARE_DEVICE_TYPE(EUROPC_KEYBOARD, europc_keyboard_device) + +#endif // MAME_MACHINE_EUROPC_KBD_H |