// license:BSD-3-Clause // copyright-holders:Patrick Mackinlay /* * A high level emulation implementation of the Intergraph InterPro keyboard, * largely copied from the sunkbd and psi hle implementations. * * These keyboards have two primary banks of keys. The lower bank consists of * a total of 67 regular keyboard keyswitches plus a numeric keypad with a * further 18 keys. The upper bank consists of 57 membrane-style programmable * function keys in groups of 9, 36 and 12 from left to right. * * The following describes the key labels and positions according to the * standard US English keyboard layout. At least a German keyboard variant is * known to have existed. * * Upper bank keys indicated here with asterisks are printed in white, as are * all the A*, B* and C* keys; all the others are printed in brown. * * Setup* Home* 2nd A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 2nd * Help Clear F* F* * Screen * * Find Insert Print B1 B2 B3 B4 B5 B6 B7 B8 B9 B10 B11 B12 B13 B14 B15 B16 * Here Screen* * Remove * * Select Prev Next C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 C13 C14 C15 C16 * Screen Screen * * * In between the banks on the right hand side, there is a row of LEDs, the * first three are pictures, rather than the descriptions given here). * * Disk Lock ----- L1 L2 L3 L4 * * Lower bank keys have up to 3 labels, in shifted and unshifted positions, and * in red on the front face of the key-cap. * * Esc ~ ! @ # $ % ^ & * ( ) _ + Back Delete PF1 PF2 PF3 PF4 * ` 1 2 3 4 5 6 7 8 9 0 - = Space ± ÷ × + * Esc Num Lk ScrlLk Sys * * Alt Tab Q W E R T Y U I O P { } 7 8 9 _ * Mode [ ] * Home ↑ Pg Up Prt Sc * * Ctrl Caps A S D F G H J K L : " | Return 4 5 6 , * Lock * ← → − * * Shift > Z X C V B N M , . ? Shift ▲ 1 2 3 = * < ■ * End ↓ Pg Dn * * Hold Super- Line Repeat ◄ ■ ► 0 ◦ * Screen impose Feed ▼ . Enter * Ins Del + * * Alt Mode and Caps Lock keys have locking switches, capturing the key in the * depressed position, as well as physical leds visible on the keycaps * themselves. The keyboard also has two physical buttons on the back face of * the keyboard, circular button labelled Boot, and a square one labelled Reset. * * The keyboard uses a 1200bps serial protocol to communicate with the host, * with 1 start bit, 8 data bits, 1 stop bit, and even parity. The protocol * as far as is known consists of the following sequences: * * From Host Purpose Expected Response * --------- ------- ----------------- * 0x1b 0x42 probably controls several functions: * * 0x01 sound bell? * 0x04 keyclick on * 0x08 membrane click on * 0x20 bell tone loud/soft/none? (seems only loud/none) * * 0x1b 0x44 reset/diag 0xff , where status bits are set to * indicate diagnostic failure source: 0x8=EPROM * checksum, 0x10=RAM error, 0x20=ROM checksum * * 0x1b 0x55 activate scan code keyup/down mode? * * The keyboard has a keyboard click function, and the LED indicators described * earlier, meaning that there are additional commands to enable and disable * these functions. * * The keyboard has at least two operating modes: a simple ASCII mode which is * active after reset, and a scancode mode generating make/break codes with * full support for all the qualifiers and other non-ASCII keys. * * In ASCII mode, the keyboard transmits ASCII codes corresponding to the key * labels for keys which map to the ASCII character set. Modifiers are applied * by the keyboard itself, and do not generate make/break codes of their own. * * The following non-ASCII sequences are recognised in the system software, * and likely correspond to specific keyboard keys or buttons: * * Sequence Function * -------- -------- * ^L Reboot, possibly maps to Reboot button * ^M Unknown * ^N Unknown, but operates as a toggle * ^U Unknown * * TODO * - unmapped keys * - auto-repeat * - key click and LED commands * - alternative layouts * - scancode make/break mode * */ #include "emu.h" #include "hle.h" #include "machine/keyboard.ipp" #include "speaker.h" #define VERBOSE 0 #include "logmacro.h" DEFINE_DEVICE_TYPE(INTERPRO_HLE_EN_US_KEYBOARD, bus::interpro::keyboard::hle_en_us_device, "kbd_hle_en_us", "InterPro Keyboard (HLE, US English)") namespace bus::interpro::keyboard { namespace { u8 const TRANSLATION_TABLE[4][5][16] = { // unshifted { { 0x1b, 0x60, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x30, 0x2d, 0x3d, 0x08, 0x7f }, // 0 { 0x00, 0x09, 0x71, 0x77, 0x65, 0x72, 0x74, 0x79, 0x75, 0x69, 0x6f, 0x70, 0x5b, 0x5d, 0x00, 0x00 }, // 1 { 0x00, 0x00, 0x61, 0x73, 0x64, 0x66, 0x67, 0x68, 0x6a, 0x6b, 0x6c, 0x3b, 0x27, 0x5c, 0x0d, 0x00 }, // 2 { 0x00, 0x3c, 0x7a, 0x78, 0x63, 0x76, 0x62, 0x6e, 0x6d, 0x2c, 0x2e, 0x2f, 0x00, 0x00, 0x00, 0x00 }, // 3 { 0x00, 0x00, 0x00, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, // 4 }, // shifted { { 0x1b, 0x7e, 0x21, 0x40, 0x23, 0x24, 0x25, 0x5e, 0x26, 0x2a, 0x28, 0x29, 0x5f, 0x2b, 0x08, 0x7f }, // 0 { 0x00, 0x09, 0x51, 0x57, 0x45, 0x52, 0x54, 0x59, 0x55, 0x49, 0x4f, 0x50, 0x7b, 0x7d, 0x00, 0x00 }, // 1 { 0x00, 0x00, 0x41, 0x53, 0x44, 0x46, 0x47, 0x48, 0x4a, 0x4b, 0x4c, 0x3a, 0x22, 0x7c, 0x0d, 0x00 }, // 2 { 0x00, 0x3e, 0x5a, 0x58, 0x43, 0x56, 0x42, 0x4e, 0x4d, 0x2c, 0x2e, 0x3f, 0x00, 0x00, 0x00, 0x00 }, // 3 { 0x00, 0x00, 0x00, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, // 4 }, // unshifted-control { { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, // 0 { 0x00, 0x00, 0x11, 0x17, 0x05, 0x12, 0x14, 0x19, 0x15, 0x09, 0x0f, 0x10, 0x1b, 0x1d, 0x00, 0x00 }, // 1 { 0x00, 0x00, 0x01, 0x13, 0x04, 0x06, 0x07, 0x08, 0x0a, 0x0b, 0x0c, 0x00, 0x00, 0x1c, 0x00, 0x00 }, // 2 { 0x00, 0x00, 0x1a, 0x18, 0x03, 0x16, 0x02, 0x0e, 0x0d, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, // 3 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, // 4 }, // shifted-control { { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, // 0 { 0x00, 0x00, 0x11, 0x17, 0x05, 0x12, 0x14, 0x19, 0x15, 0x09, 0x0f, 0x10, 0x1b, 0x1d, 0x00, 0x00 }, // 1 { 0x00, 0x00, 0x01, 0x13, 0x04, 0x06, 0x07, 0x08, 0x0a, 0x0b, 0x0c, 0x00, 0x00, 0x1c, 0x00, 0x00 }, // 2 { 0x00, 0x00, 0x1a, 0x18, 0x03, 0x16, 0x02, 0x0e, 0x0d, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, // 3 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, // 4 } }; INPUT_PORTS_START(interpro_en_us) PORT_START("modifiers") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_LCONTROL) PORT_CODE(KEYCODE_RCONTROL) PORT_NAME("Control") PORT_CHAR(UCHAR_MAMEKEY(LCONTROL)) PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT) PORT_NAME("Shift") PORT_CHAR(UCHAR_SHIFT_1) PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_CAPSLOCK) PORT_NAME("Caps Lock") PORT_TOGGLE PORT_CHAR(UCHAR_MAMEKEY(CAPSLOCK)) PORT_START("row_0") PORT_BIT(0x0001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_ESC) PORT_NAME("Esc") PORT_CHAR(UCHAR_MAMEKEY(ESC)) PORT_BIT(0x0002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_TILDE) PORT_CHAR('`') PORT_CHAR('~') PORT_BIT(0x0004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!') PORT_BIT(0x0008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('@') PORT_BIT(0x0010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#') PORT_BIT(0x0020, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$') PORT_BIT(0x0040, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%') PORT_BIT(0x0080, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('^') PORT_BIT(0x0100, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('&') PORT_BIT(0x0200, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('*') PORT_BIT(0x0400, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR('(') PORT_BIT(0x0800, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR(')') PORT_BIT(0x1000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('_') PORT_BIT(0x2000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('=') PORT_CHAR('+') PORT_BIT(0x4000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSPACE) PORT_NAME("Backspace") PORT_CHAR(8) PORT_BIT(0x8000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_DEL) PORT_NAME("Delete") PORT_CHAR(UCHAR_MAMEKEY(DEL)) PORT_START("row_1") PORT_BIT(0x0001, IP_ACTIVE_HIGH, IPT_UNUSED) // "Alt Mode" PORT_BIT(0x0002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_TAB) PORT_NAME("Tab") PORT_CHAR(9) PORT_BIT(0x0004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q') PORT_BIT(0x0008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W') PORT_BIT(0x0010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E') PORT_BIT(0x0020, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R') PORT_BIT(0x0040, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T') PORT_BIT(0x0080, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y') PORT_BIT(0x0100, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U') PORT_BIT(0x0200, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I') PORT_BIT(0x0400, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O') PORT_BIT(0x0800, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P') PORT_BIT(0x1000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('[') PORT_CHAR('{') PORT_BIT(0x2000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR(']') PORT_CHAR('}') PORT_START("row_2") PORT_BIT(0x0001, IP_ACTIVE_HIGH, IPT_UNUSED) // CTRL PORT_BIT(0x0002, IP_ACTIVE_HIGH, IPT_UNUSED) // LOCK PORT_BIT(0x0004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A') PORT_BIT(0x0008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S') PORT_BIT(0x0010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D') PORT_BIT(0x0020, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F') PORT_BIT(0x0040, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('G') PORT_BIT(0x0080, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H') PORT_BIT(0x0100, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_J) PORT_CHAR('j') PORT_CHAR('J') PORT_BIT(0x0200, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K') PORT_BIT(0x0400, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L') PORT_BIT(0x0800, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR(':') PORT_BIT(0x1000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR('\'') PORT_CHAR('"') PORT_BIT(0x2000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR('\\') PORT_CHAR('|') PORT_BIT(0x4000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_ENTER) PORT_NAME("Return") PORT_CHAR(13) PORT_START("row_3") PORT_BIT(0x0001, IP_ACTIVE_HIGH, IPT_UNUSED) // LSHIFT PORT_BIT(0x0002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSLASH2) PORT_CHAR('<') PORT_CHAR('>') PORT_BIT(0x0004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z') PORT_BIT(0x0008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X') PORT_BIT(0x0010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C') PORT_BIT(0x0020, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V') PORT_BIT(0x0040, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B') PORT_BIT(0x0080, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N') PORT_BIT(0x0100, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M') PORT_BIT(0x0200, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_BIT(0x0400, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_BIT(0x0800, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?') PORT_BIT(0x1000, IP_ACTIVE_HIGH, IPT_UNUSED) // RSHIFT PORT_BIT(0x2000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_UP) PORT_NAME("Up") PORT_CHAR(UCHAR_MAMEKEY(UP)) PORT_START("row_4") PORT_BIT(0x0001, IP_ACTIVE_HIGH, IPT_UNUSED) // "Hold Screen" PORT_BIT(0x0002, IP_ACTIVE_HIGH, IPT_UNUSED) // "Superimpose" PORT_BIT(0x0004, IP_ACTIVE_HIGH, IPT_UNUSED) // "Line Feed" PORT_BIT(0x0008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_SPACE) PORT_NAME("Space") PORT_CHAR(UCHAR_MAMEKEY(SPACE)) PORT_BIT(0x0010, IP_ACTIVE_HIGH, IPT_UNUSED) // "Repeat" PORT_BIT(0x0020, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_LEFT) PORT_NAME("Left") PORT_CHAR(UCHAR_MAMEKEY(LEFT)) PORT_BIT(0x0040, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_DOWN) PORT_NAME("Down") PORT_CHAR(UCHAR_MAMEKEY(DOWN)) PORT_BIT(0x0080, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_RIGHT) PORT_NAME("Right") PORT_CHAR(UCHAR_MAMEKEY(RIGHT)) INPUT_PORTS_END INPUT_PORTS_START(hle_en_us_device) PORT_INCLUDE(interpro_en_us) INPUT_PORTS_END } // anonymous namespace hle_device_base::hle_device_base(machine_config const &mconfig, device_type type, char const *tag, device_t *owner, const XTAL &clock) : device_t(mconfig, type, tag, owner, clock) , device_buffered_serial_interface(mconfig, *this) , device_interpro_keyboard_port_interface(mconfig, *this) , device_matrix_keyboard_interface(mconfig, *this, "row_0", "row_1", "row_2", "row_3", "row_4") , m_click_timer(nullptr) , m_beeper(*this, "beeper") , m_make_count(0U) , m_rx_state(RX_IDLE) , m_keyclick(0U) , m_beeper_state(0U) { } hle_device_base::~hle_device_base() { } WRITE_LINE_MEMBER(hle_device_base::input_txd) { device_buffered_serial_interface::rx_w(state); } void hle_device_base::device_add_mconfig(machine_config &config) { SPEAKER(config, "bell").front_center(); BEEP(config, m_beeper, ATTOSECONDS_TO_HZ(480 * ATTOSECONDS_PER_MICROSECOND)).add_route(ALL_OUTPUTS, "bell", 1.0); } void hle_device_base::device_start() { m_click_timer = timer_alloc(FUNC(hle_device_base::click_tick), this); save_item(NAME(m_make_count)); save_item(NAME(m_rx_state)); save_item(NAME(m_keyclick)); save_item(NAME(m_beeper_state)); } void hle_device_base::device_reset() { // initialise state clear_fifo(); m_make_count = 0U; m_rx_state = RX_IDLE; m_keyclick = 0U; m_beeper_state = 0x00U; // configure device_buffered_serial_interface set_data_frame(START_BIT_COUNT, DATA_BIT_COUNT, PARITY, STOP_BITS); set_rate(BAUD); receive_register_reset(); transmit_register_reset(); // no beep m_click_timer->reset(); // kick the base reset_key_state(); start_processing(attotime::from_hz(1'200)); } TIMER_CALLBACK_MEMBER(hle_device_base::click_tick) { m_beeper_state &= ~u8(BEEPER_CLICK); m_beeper->set_state(m_beeper_state ? 1 : 0); } void hle_device_base::tra_callback() { output_rxd(transmit_register_get_data_bit()); } void hle_device_base::tra_complete() { if (fifo_full()) start_processing(attotime::from_hz(1'200)); device_buffered_serial_interface::tra_complete(); } void hle_device_base::key_make(u8 row, u8 column) { // we should have stopped processing if we filled the FIFO assert(!fifo_full()); // send the make code, click if desired transmit_byte(translate(row, column)); if (m_keyclick) { m_beeper_state |= u8(BEEPER_CLICK); m_beeper->set_state(m_beeper_state ? 1 : 0); m_click_timer->reset(attotime::from_msec(5)); } // count keys ++m_make_count; assert(m_make_count); } void hle_device_base::key_break(u8 row, u8 column) { // we should have stopped processing if we filled the FIFO assert(!fifo_full()); assert(m_make_count); --m_make_count; // check our counting assert(are_all_keys_up() == !bool(m_make_count)); } void hle_device_base::transmit_byte(u8 byte) { LOG("transmit_byte 0x%02x\n", byte); device_buffered_serial_interface::transmit_byte(byte); if (fifo_full()) stop_processing(); } void hle_device_base::received_byte(u8 byte) { LOG("received_byte 0x%02x\n", byte); switch (m_rx_state) { case RX_COMMAND: switch (byte) { case 0x42: // configure flags m_rx_state = RX_FLAGS; break; case 0x44: // reset/diagnostic transmit_byte(0xff); transmit_byte(0x00); m_rx_state = RX_IDLE; break; case 0x55: break; } break; case RX_FLAGS: // FIXME: this logic is wrong (should decode the various fields), but // generates bell sounds at the right time for now switch (byte) { case 0x28: LOG("bell on\n"); m_beeper_state |= u8(BEEPER_BELL); m_beeper->set_state(m_beeper_state ? 1 : 0); break; case 0x29: LOG("bell off\n"); m_beeper_state &= ~u8(BEEPER_BELL); m_beeper->set_state(m_beeper_state ? 1 : 0); break; default: break; } m_rx_state = RX_IDLE; break; case RX_IDLE: if (byte == 0x1b) m_rx_state = RX_COMMAND; break; } } hle_en_us_device::hle_en_us_device(machine_config const &mconfig, char const *tag, device_t *owner, const XTAL &clock) : hle_device_base(mconfig, INTERPRO_HLE_EN_US_KEYBOARD, tag, owner, clock), m_modifiers(*this, "modifiers") { } ioport_constructor hle_en_us_device::device_input_ports() const { return INPUT_PORTS_NAME(hle_en_us_device); } u8 hle_en_us_device::translate(u8 row, u8 column) { u8 const modifiers(m_modifiers->read()); bool const ctrl(modifiers & 0x01); bool const shift(bool(modifiers & 0x02) || (bool(modifiers & 0x04))); bool const ctrl_shift(ctrl && shift); unsigned const map(ctrl_shift ? 3 : ctrl ? 2 : shift ? 1 : 0); return TRANSLATION_TABLE[map][row][column]; } } // namespace bus::interpro::keyboard