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-rw-r--r--src/devices/bus/interpro/keyboard/hle.cpp461
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diff --git a/src/devices/bus/interpro/keyboard/hle.cpp b/src/devices/bus/interpro/keyboard/hle.cpp
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+++ b/src/devices/bus/interpro/keyboard/hle.cpp
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+// 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. It's unknown what other variations
+ * existed at this point.
+ *
+ * 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
+ * --------- ------- -----------------
+ * <esc> D Diagnostic 0xff <status>, where status bits are set to
+ * indicate diagnostic failure source: 0x8=EPROM
+ * checksum, 0x10=RAM error, 0x20=ROM checksum
+ *
+ * <esc> B ( Bell On None
+ *
+ * <esc> B ) Bell Off None
+ *
+ * <esc> B <byte> Unknown None
+ *
+ * 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 transmits ASCII codes corresponding to the keycap 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
+ * -------- --------
+ * <esc> ^L Reboot, possibly maps to Reboot button
+ * <esc> ^M Unknown
+ * <esc> ^N Unknown, but operates as a toggle
+ * <esc> ^U Unknown
+ *
+ * TODO
+ * - unmapped keys
+ * - auto-repeat
+ * - key click and LED commands
+ * - alternative layouts
+ *
+ */
+#include "emu.h"
+#include "hle.h"
+
+#include "machine/keyboard.ipp"
+#include "speaker.h"
+
+#define VERBOSE 0
+#include "logmacro.h"
+
+DEFINE_DEVICE_TYPE_NS(INTERPRO_HLE_EN_US_KEYBOARD, bus::interpro::keyboard, hle_en_us_device, "kbd_hle_en_us", "InterPro Keyboard (HLE, US English)")
+
+namespace bus { namespace interpro { namespace 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, u32 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);
+}
+
+MACHINE_CONFIG_MEMBER(hle_device_base::device_add_mconfig)
+ MCFG_SPEAKER_STANDARD_MONO("bell")
+ MCFG_SOUND_ADD("beeper", BEEP, ATTOSECONDS_TO_HZ(480 * ATTOSECONDS_PER_MICROSECOND))
+ MCFG_SOUND_ROUTE(ALL_OUTPUTS, "bell", 1.0)
+MACHINE_CONFIG_END
+
+void hle_device_base::device_start()
+{
+ m_click_timer = timer_alloc(CLICK_TIMER_ID);
+
+ 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();
+
+ // start with keyboard LEDs off
+ machine().output().set_led_value(LED_DISK, 0);
+ machine().output().set_led_value(LED_LOCK, 0);
+ machine().output().set_led_value(LED_UNKNOWN, 0);
+ machine().output().set_led_value(LED_L1, 0);
+ machine().output().set_led_value(LED_L2, 0);
+ machine().output().set_led_value(LED_L3, 0);
+ machine().output().set_led_value(LED_L4, 0);
+
+ // no beep
+ m_click_timer->reset();
+
+ // kick the base
+ reset_key_state();
+ start_processing(attotime::from_hz(1'200));
+}
+
+void hle_device_base::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr)
+{
+ switch (id)
+ {
+ case CLICK_TIMER_ID:
+ m_beeper_state &= ~u8(BEEPER_CLICK);
+ m_beeper->set_state(m_beeper_state ? 1 : 0);
+ break;
+
+ default:
+ break;
+ }
+}
+
+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_ESC:
+ switch (byte)
+ {
+ case 'B': // bell
+ m_rx_state = RX_BELL;
+ break;
+
+ case 'D': // diagnostic
+ transmit_byte(0xff);
+ transmit_byte(0x00);
+
+ m_rx_state = RX_IDLE;
+ break;
+ }
+ break;
+
+ case RX_BELL:
+ switch (byte)
+ {
+ case '(':
+ LOG("bell on\n");
+ m_beeper_state |= u8(BEEPER_BELL);
+ m_beeper->set_state(m_beeper_state ? 1 : 0);
+ break;
+
+ case ')':
+ LOG("bell off\n");
+ m_beeper_state &= ~u8(BEEPER_BELL);
+ m_beeper->set_state(m_beeper_state ? 1 : 0);
+ break;
+
+ default:
+ // FIXME: boot code sends 0x8, unknown meaning
+ break;
+ }
+ m_rx_state = RX_IDLE;
+ break;
+
+ case RX_IDLE:
+ if (byte == 0x1b)
+ m_rx_state = RX_ESC;
+ break;
+ }
+}
+
+hle_en_us_device::hle_en_us_device(machine_config const &mconfig, char const *tag, device_t *owner, u32 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