diff options
Diffstat (limited to 'src/devices/bus/amiga/keyboard/a2000.cpp')
-rw-r--r-- | src/devices/bus/amiga/keyboard/a2000.cpp | 382 |
1 files changed, 382 insertions, 0 deletions
diff --git a/src/devices/bus/amiga/keyboard/a2000.cpp b/src/devices/bus/amiga/keyboard/a2000.cpp new file mode 100644 index 00000000000..5682d5aafd1 --- /dev/null +++ b/src/devices/bus/amiga/keyboard/a2000.cpp @@ -0,0 +1,382 @@ +// license:BSD-3-Clause +// copyright-holders:Vas Crabb +/*************************************************************************** + + Amiga 2000 Keyboard + + Manufactured by Cherry + + Very simple electronics: + * Philips crystal labelled 6000.000 + * U1 Philips MAB 8039HL 11P (microcontroller) + * U2 RCA CD74HCT373E (latches low address bits from data bus) + * U3 Fairchild 74LS373 PC (buffers keyboard inputs on data bus) + * U4 2k*8 EPROM with label 467 + + Six-position single inline header to host: + * Pin 1 goes to U1 /INT and P26 (space for pull-up unpopulated) + * Pin 2 goes to U1 T1 and P27 (space for pull-up unpopulated) + * Pin 3 connected to ground/Vss + * Pin 4 absent (key) + * Pin 5 connected to Vdd/Vcc positive supply rail + * Pin 6 connected to ground/Vss + + The program is supposed to support running from internal ROM (on an + 8049) or from external ROM as is the case for with the example we + have. To run from external ROM, EA and T0 are tied high (J6 + populated); to run from internal ROM, EA and T0 are tied low (J7 + populated). The program reads keys using movx a,@r0 when running + from external ROM, or ins a,bus when running from internal ROM. + +***************************************************************************/ + +#include "emu.h" +#include "a2000.h" + +#include "cpu/mcs48/mcs48.h" + +#define LOG_GENERAL (1U << 0) +#define LOG_COMM (1U << 1) +#define LOG_SCAN (1U << 2) + +//#define VERBOSE (LOG_GENERAL | LOG_COMM) +#include "logmacro.h" + +#define LOGCOMM(...) LOGMASKED(LOG_COMM, __VA_ARGS__) +#define LOGSCAN(...) LOGMASKED(LOG_SCAN, __VA_ARGS__) + + +//************************************************************************** +// GLOBAL VARIABLES +//************************************************************************** + +DEFINE_DEVICE_TYPE_NS(A2000_KBD_US, bus::amiga::keyboard, a2000_kbd_us_device, "a2000kbd_us", "Amiga 2000 Keyboard (U.S./Canada)") +DEFINE_DEVICE_TYPE_NS(A2000_KBD_GB, bus::amiga::keyboard, a2000_kbd_gb_device, "a2000kbd_gb", "Amiga 2000 Keyboard (UK)") + + + +namespace bus { namespace amiga { namespace keyboard { + +namespace { + +INPUT_PORTS_START(a2000_common_keyboard) + PORT_START("ROW0") + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_F6) PORT_CHAR(UCHAR_MAMEKEY(F6)) + PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_F10) PORT_CHAR(UCHAR_MAMEKEY(F10)) + + PORT_START("ROW1") + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_F3) PORT_CHAR(UCHAR_MAMEKEY(F3)) + PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8) + PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13) + + PORT_START("ROW2") + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_F2) PORT_CHAR(UCHAR_MAMEKEY(F2)) + PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_UNUSED) + + PORT_START("ROW3") + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_ESC) PORT_CHAR(UCHAR_MAMEKEY(ESC)) + PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_CAPSLOCK) PORT_CHAR(UCHAR_MAMEKEY(CAPSLOCK)) + + PORT_START("ROW4") + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_F5) PORT_CHAR(UCHAR_MAMEKEY(F5)) + PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ') + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_RALT) PORT_CHAR(UCHAR_SHIFT_2) PORT_NAME("Right Alt") + + PORT_START("ROW5") + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_ASTERISK) PORT_CHAR(UCHAR_MAMEKEY(ASTERISK)) + PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_SLASH_PAD) PORT_CHAR(UCHAR_MAMEKEY(SLASH_PAD)) + PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_9_PAD) PORT_CHAR(UCHAR_MAMEKEY(9_PAD)) + PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_MINUS_PAD) PORT_CHAR(UCHAR_MAMEKEY(MINUS_PAD)) + PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_ENTER_PAD) PORT_CHAR(UCHAR_MAMEKEY(ENTER_PAD)) + PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_3_PAD) PORT_CHAR(UCHAR_MAMEKEY(3_PAD)) + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_PLUS_PAD) PORT_CHAR(UCHAR_MAMEKEY(PLUS_PAD)) + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_6_PAD) PORT_CHAR(UCHAR_MAMEKEY(6_PAD)) + + PORT_START("ROW6") + PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_8_PAD) PORT_CHAR(UCHAR_MAMEKEY(8_PAD)) + PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_7_PAD) PORT_CHAR(UCHAR_MAMEKEY(7_PAD)) + PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_2_PAD) PORT_CHAR(UCHAR_MAMEKEY(2_PAD)) + PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_1_PAD) PORT_CHAR(UCHAR_MAMEKEY(1_PAD)) + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_5_PAD) PORT_CHAR(UCHAR_MAMEKEY(5_PAD)) + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_4_PAD) PORT_CHAR(UCHAR_MAMEKEY(4_PAD)) + + PORT_START("ROW7") + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_F1) PORT_CHAR(UCHAR_MAMEKEY(F1)) + PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_LALT) PORT_CHAR(UCHAR_MAMEKEY(LALT)) PORT_NAME("Left Alt") + PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_TILDE) PORT_CHAR('`') PORT_CHAR('~') + PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_1) PORT_NAME("Left Shift") + PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_LCONTROL) PORT_CHAR(UCHAR_MAMEKEY(LCONTROL)) PORT_NAME("Ctrl") + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_LWIN) PORT_CHAR(UCHAR_MAMEKEY(LWIN)) PORT_NAME("Left Amiga") + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_TAB) PORT_CHAR(9) + + PORT_START("ROW8") + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_F4) PORT_CHAR(UCHAR_MAMEKEY(F4)) + PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_RWIN) PORT_CHAR(UCHAR_MAMEKEY(RWIN)) PORT_NAME("Right Amiga") + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_MAMEKEY(RSHIFT)) PORT_NAME("Right Shift") + + PORT_START("ROW9") + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_F7) PORT_CHAR(UCHAR_MAMEKEY(F7)) + + PORT_START("ROW10") + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_F9) PORT_CHAR(UCHAR_MAMEKEY(F9)) + + PORT_START("ROW11") + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_F8) PORT_CHAR(UCHAR_MAMEKEY(F8)) + PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_UNUSED) + + PORT_START("ROW12") + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_INSERT) PORT_CHAR(UCHAR_MAMEKEY(INSERT)) PORT_NAME("Help") + PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_DEL) PORT_CHAR(UCHAR_MAMEKEY(DEL)) + PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_UP) PORT_CHAR(UCHAR_MAMEKEY(UP)) + PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_RIGHT) PORT_CHAR(UCHAR_MAMEKEY(RIGHT)) + PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_DEL_PAD) PORT_CHAR(UCHAR_MAMEKEY(DEL_PAD)) + PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_0_PAD) PORT_CHAR(UCHAR_MAMEKEY(0_PAD)) + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_LEFT) PORT_CHAR(UCHAR_MAMEKEY(LEFT)) + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_DOWN) PORT_CHAR(UCHAR_MAMEKEY(DOWN)) +INPUT_PORTS_END + +INPUT_PORTS_START(a2000_us_keyboard) + PORT_INCLUDE(a2000_common_keyboard) + + PORT_MODIFY("ROW0") + PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR(')') PORT_CHAR(0x00bb) // » + PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('^') PORT_CHAR(0x00bd) // ½ + PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N') PORT_CHAR(0x00ad) PORT_CHAR(0x00af) // soft hyphen ¯ + PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H') PORT_CHAR(0x02c6) // ˆ + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P') PORT_CHAR(0x00b6) // ¶ + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y') PORT_CHAR(0x00a4) PORT_CHAR(0x00a5) // ¤ ¥ + + PORT_MODIFY("ROW1") + PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%') PORT_CHAR(0x00bc) // ¼ + PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B') PORT_CHAR(0x00ba) // º + PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('G') PORT_CHAR(0x02cb) // ˋ + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T') PORT_CHAR(0x00fe) PORT_CHAR(0x00de) // þ Þ + + PORT_MODIFY("ROW2") + PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('@') PORT_CHAR(0x00b2) // ² + PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X') PORT_CHAR(0x00d7) PORT_CHAR(0x00f7) // × ÷ + PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S') PORT_CHAR(0x00df) PORT_CHAR(0x00a7) // ß § + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W') PORT_CHAR(0x00b0) // ° + + PORT_MODIFY("ROW3") + PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!') PORT_CHAR(0x00b9) // ¹ + PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z') PORT_CHAR(0x00b1) PORT_CHAR(0x00ac) // ± ¬ + PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A') PORT_CHAR(0x00e6) PORT_CHAR(0x00c6) // æ Æ + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q') PORT_CHAR(0x00e5) PORT_CHAR(0x00c5) // å Å + + PORT_MODIFY("ROW4") + PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#') PORT_CHAR(0x00b3) // ³ + PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C') PORT_CHAR(0x00e7) PORT_CHAR(0x00c7) // ç Ç + PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D') PORT_CHAR(0x00f0) PORT_CHAR(0x00d0) // ð Ð + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E') PORT_CHAR(0x00a9) // © + + PORT_MODIFY("ROW6") + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_NUMLOCK) PORT_CHAR(UCHAR_MAMEKEY(NUMLOCK)) PORT_NAME("Keypad (") + PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_SCRLOCK) PORT_CHAR(UCHAR_MAMEKEY(SCRLOCK)) PORT_NAME("Keypad )") + + PORT_MODIFY("ROW8") + PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR('\\') PORT_CHAR('|') + PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$') PORT_CHAR(0x00a2) // ¢ + PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V') PORT_CHAR(0x00aa) // ª + PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F') PORT_CHAR(0x00b4) // ´ + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R') PORT_CHAR(0x00ae) // ® + + PORT_MODIFY("ROW9") + PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('=') PORT_CHAR('+') + PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR(']') PORT_CHAR('}') + PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('*') PORT_CHAR(0x00b7) // · + PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<') + PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K') PORT_CHAR(0x00a8) // ¨ + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I') PORT_CHAR(0x00a1) PORT_CHAR(0x00a6) // ¡ ¦ + + PORT_MODIFY("ROW10") + PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('_') + PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('[') PORT_CHAR('{') + PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR('(') PORT_CHAR(0x00ab) // « + PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>') + PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L') PORT_CHAR(0x00a3) // £ + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR('\'') PORT_CHAR('"') + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O') PORT_CHAR(0x00f8) PORT_CHAR(0x00d8) // ø Ø + + PORT_MODIFY("ROW11") + PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?') + PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('&') PORT_CHAR(0x00be) // ¾ + PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M') PORT_CHAR(0x00b8) PORT_CHAR(0x00bf) // ¸ ¿ + PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_J) PORT_CHAR('j') PORT_CHAR('J') PORT_CHAR(0x02dc) // ˜ + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR(':') + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U') PORT_CHAR(0x00b5) // µ +INPUT_PORTS_END + +INPUT_PORTS_START(a2000_gb_keyboard) + PORT_INCLUDE(a2000_us_keyboard) + + PORT_MODIFY("ROW2") + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('"') PORT_CHAR(0x00b2) // ² + + PORT_MODIFY("ROW4") + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR(0x00a3) PORT_CHAR(0x00b3) // £ ³ + + PORT_MODIFY("ROW10") + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR('#') PORT_CHAR('@') PORT_CHAR('\'') PORT_CHAR('"') +INPUT_PORTS_END + + +ROM_START(a2000kbd) + ROM_REGION(0x0800, "mcu", 0) + ROM_LOAD("467.u4", 0x0000, 0x0800, CRC(fb92a773) SHA1(e787dc05de227f30a47ac5b9ee7a355c2e9e693b)) +ROM_END + +} // anonymous namespace + + + +//************************************************************************** +// LIVE DEVICE +//************************************************************************** + +// ======================> a2000_kbd_device + +a2000_kbd_device::a2000_kbd_device(machine_config const &mconfig, device_type type, char const *tag, device_t *owner, uint32_t clock) + : device_t(mconfig, type, tag, owner, clock) + , device_amiga_keyboard_interface(mconfig, *this) + , m_rows(*this, "ROW%u", 0U) + , m_mcu(*this, "u1") + , m_row_drive(0U) + , m_host_kdat(true) + , m_mcu_kdat(true) + , m_mcu_kclk(true) +{ +} + +WRITE_LINE_MEMBER(a2000_kbd_device::kdat_w) +{ + if (bool(state) != m_host_kdat) + { + LOGCOMM("host DATA %u -> %u\n", m_host_kdat ? 1 : 0, state ? 1 : 0); + m_host_kdat = bool(state); + if (m_mcu_kdat) + m_mcu->set_input_line(MCS48_INPUT_IRQ, state ? CLEAR_LINE : ASSERT_LINE); + } +} + +READ8_MEMBER(a2000_kbd_device::mcu_bus_r) +{ + uint8_t result(0U); + for (unsigned i = 0U; m_rows.size() > i; ++i) + { + if (BIT(m_row_drive, i)) + result |= uint8_t(m_rows[i]->read()); + } + LOGSCAN("read bus: offset = %02X, row drive = %04X\n, result = %02X", offset, m_row_drive, result); + return result; +} + +WRITE8_MEMBER(a2000_kbd_device::mcu_p1_w) +{ + m_row_drive = (m_row_drive & 0x1f00U) | uint16_t(data); +} + +WRITE8_MEMBER(a2000_kbd_device::mcu_p2_w) +{ + m_row_drive = (m_row_drive & 0x00ffU) | (uint16_t(data & 0x1fU) << 8); + + machine().output().set_value("led_kbd_caps", BIT(~data, 5)); + + if (bool(BIT(data, 6) != m_mcu_kdat)) + { + m_mcu_kdat = BIT(data, 6); + LOGCOMM("keyboard DATA %u -> %u\n", m_mcu_kdat ? 0U : 1U, m_mcu_kdat ? 1U : 0U); + m_host->kdat_w(m_mcu_kdat ? 1 : 0); + if (m_host_kdat) + m_mcu->set_input_line(MCS48_INPUT_IRQ, m_mcu_kdat ? CLEAR_LINE : ASSERT_LINE); + } + + if (bool(BIT(data, 7) != m_mcu_kclk)) + { + m_mcu_kclk = BIT(data, 7); + LOGCOMM("keyboard CLOCK %u -> %u\n", m_mcu_kclk ? 0U : 1U, m_mcu_kclk ? 1U : 0U); + m_host->kclk_w(m_mcu_kclk ? 1 : 0); + } +} + +tiny_rom_entry const *a2000_kbd_device::device_rom_region() const +{ + return ROM_NAME(a2000kbd); +} + +void a2000_kbd_device::device_add_mconfig(machine_config &config) +{ + auto &mcu(I8039(config, "u1", 6_MHz_XTAL)); + mcu.set_addrmap(AS_PROGRAM, &a2000_kbd_device::program_map); + mcu.set_addrmap(AS_IO, &a2000_kbd_device::ext_map); + mcu.p1_out_cb().set(FUNC(a2000_kbd_device::mcu_p1_w)); + mcu.p2_out_cb().set(FUNC(a2000_kbd_device::mcu_p2_w)); + mcu.bus_in_cb().set(FUNC(a2000_kbd_device::mcu_bus_r)); + mcu.t0_in_cb().set_constant(1); + mcu.t1_in_cb().set([this] () { return m_mcu_kclk ? 1 : 0; }); +} + +void a2000_kbd_device::device_start() +{ + save_item(NAME(m_row_drive)); + save_item(NAME(m_host_kdat)); + save_item(NAME(m_mcu_kdat)); + save_item(NAME(m_mcu_kclk)); + + m_row_drive = 0U; + m_host_kdat = true; + m_mcu_kdat = true; + m_mcu_kclk = true; +} + +void a2000_kbd_device::device_reset() +{ +} + +void a2000_kbd_device::program_map(address_map &map) +{ + map.global_mask(0x07ff); + map(0x0000, 0x07ff).rom().region("mcu", 0); +} + +void a2000_kbd_device::ext_map(address_map &map) +{ + map.global_mask(0x00ff); + map(0x0000, 0x00ff).r(FUNC(a2000_kbd_device::mcu_bus_r)); +} + + +// ======================> a2000_kbd_us_device + +a2000_kbd_us_device::a2000_kbd_us_device(machine_config const &mconfig, char const *tag, device_t *owner, uint32_t clock) + : a2000_kbd_device(mconfig, A2000_KBD_US, tag, owner, clock) +{ +} + +ioport_constructor a2000_kbd_us_device::device_input_ports() const +{ + return INPUT_PORTS_NAME(a2000_us_keyboard); +} + + +// ======================> a2000_kbd_gb_device + +a2000_kbd_gb_device::a2000_kbd_gb_device(machine_config const &mconfig, char const *tag, device_t *owner, uint32_t clock) + : a2000_kbd_device(mconfig, A2000_KBD_GB, tag, owner, clock) +{ +} + +ioport_constructor a2000_kbd_gb_device::device_input_ports() const +{ + return INPUT_PORTS_NAME(a2000_gb_keyboard); +} + +} } } // namespace bus::amiga::keyboard |