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Add initial support for Hackaday Communicator (#8771)
* Add initial support for Hackaday Communicator * Fork it! * Trunk * Remove unused elements from the HackadayCommunicatorKeyboard * Don't divide by zero.
This commit is contained in:
Jonathan Bennett
GitHub
217
src/input/HackadayCommunicatorKeyboard.cpp
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217
src/input/HackadayCommunicatorKeyboard.cpp
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@@ -0,0 +1,217 @@
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#if defined(HACKADAY_COMMUNICATOR)
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#include "HackadayCommunicatorKeyboard.h"
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#include "main.h"
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#define _TCA8418_COLS 10
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#define _TCA8418_ROWS 8
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#define _TCA8418_NUM_KEYS 80
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#define _TCA8418_MULTI_TAP_THRESHOLD 1500
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using Key = TCA8418KeyboardBase::TCA8418Key;
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constexpr uint8_t modifierRightShiftKey = 30;
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constexpr uint8_t modifierRightShift = 0b0001;
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constexpr uint8_t modifierLeftShiftKey = 76; // keynum -1
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constexpr uint8_t modifierLeftShift = 0b0001;
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// constexpr uint8_t modifierSymKey = 42;
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// constexpr uint8_t modifierSym = 0b0010;
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// Num chars per key, Modulus for rotating through characters
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static uint8_t HackadayCommunicatorTapMod[_TCA8418_NUM_KEYS] = {
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0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2,
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0, 0, 0, 1, 1, 0, 1, 1, 1, 0, 0, 0, 1, 2, 2, 2, 2, 2, 2, 0, 0, 0, 1, 2, 2, 2, 1, 2, 2, 0, 0, 0, 2, 1, 2, 2, 0, 1, 1, 0,
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};
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static unsigned char HackadayCommunicatorTapMap[_TCA8418_NUM_KEYS][2] = {{},
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{},
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{'+'},
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{'9'},
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{'8'},
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{'7'},
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{'2'},
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{'3'},
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{'4'},
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{'5'},
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{Key::ESC},
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{'q', 'Q'},
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{'w', 'W'},
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{'e', 'E'},
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{'r', 'R'},
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{'t', 'T'},
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{'y', 'Y'},
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{'u', 'U'},
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{'i', 'I'},
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{'o', 'O'},
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{Key::TAB},
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{'a', 'A'},
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{'s', 'S'},
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{'d', 'D'},
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{'f', 'F'},
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{'g', 'G'},
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{'h', 'H'},
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{'j', 'J'},
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{'k', 'K'},
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{'l', 'L'},
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{},
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{'z', 'Z'},
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{'x', 'X'},
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{'c', 'C'},
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{'v', 'V'},
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{'b', 'B'},
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{'n', 'N'},
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{'m', 'M'},
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{',', '<'},
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{'.', '>'},
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{},
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{},
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{},
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{'\\'},
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{' '},
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{},
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{Key::RIGHT},
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{Key::DOWN},
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{Key::LEFT},
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{},
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{},
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{},
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{'-'},
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{'6', '^'},
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{'5', '%'},
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{'4', '$'},
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{'[', '{'},
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{']', '}'},
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{'p', 'P'},
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{},
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{},
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{},
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{'*'},
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{'3', '#'},
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{'2', '@'},
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{'1', '!'},
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{Key::SELECT},
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{'\'', '"'},
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{';', ':'},
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{},
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{},
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{},
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{'/', '?'},
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{'='},
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{'.', '>'},
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{'0', ')'},
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{},
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{Key::UP},
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{Key::BSP},
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{}};
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HackadayCommunicatorKeyboard::HackadayCommunicatorKeyboard()
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: TCA8418KeyboardBase(_TCA8418_ROWS, _TCA8418_COLS), modifierFlag(0), last_modifier_time(0), last_key(-1), next_key(-1),
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last_tap(0L), char_idx(0), tap_interval(0)
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{
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reset();
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}
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void HackadayCommunicatorKeyboard::reset(void)
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{
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TCA8418KeyboardBase::reset();
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enableInterrupts();
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}
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// handle multi-key presses (shift and alt)
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void HackadayCommunicatorKeyboard::trigger()
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{
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uint8_t count = keyCount();
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if (count == 0)
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return;
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for (uint8_t i = 0; i < count; ++i) {
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uint8_t k = readRegister(TCA8418_REG_KEY_EVENT_A + i);
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uint8_t key = k & 0x7F;
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if (k & 0x80) {
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pressed(key);
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} else {
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released();
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state = Idle;
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}
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}
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}
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void HackadayCommunicatorKeyboard::pressed(uint8_t key)
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{
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if (state == Init || state == Busy) {
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return;
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}
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if (modifierFlag && (millis() - last_modifier_time > _TCA8418_MULTI_TAP_THRESHOLD)) {
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modifierFlag = 0;
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}
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uint8_t next_key = 0;
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int row = (key - 1) / 10;
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int col = (key - 1) % 10;
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if (row >= _TCA8418_ROWS || col >= _TCA8418_COLS) {
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return; // Invalid key
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}
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next_key = row * _TCA8418_COLS + col;
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state = Held;
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uint32_t now = millis();
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tap_interval = now - last_tap;
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updateModifierFlag(next_key);
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if (isModifierKey(next_key)) {
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last_modifier_time = now;
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}
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if (tap_interval < 0) {
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last_tap = 0;
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state = Busy;
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return;
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}
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if (next_key != last_key || tap_interval > _TCA8418_MULTI_TAP_THRESHOLD) {
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char_idx = 0;
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} else {
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char_idx += 1;
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}
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last_key = next_key;
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last_tap = now;
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}
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void HackadayCommunicatorKeyboard::released()
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{
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if (state != Held) {
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return;
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}
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if (last_key < 0 || last_key >= _TCA8418_NUM_KEYS) {
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last_key = -1;
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state = Idle;
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return;
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}
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uint32_t now = millis();
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last_tap = now;
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if (HackadayCommunicatorTapMod[last_key])
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queueEvent(HackadayCommunicatorTapMap[last_key][modifierFlag % HackadayCommunicatorTapMod[last_key]]);
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if (isModifierKey(last_key) == false)
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modifierFlag = 0;
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}
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void HackadayCommunicatorKeyboard::updateModifierFlag(uint8_t key)
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{
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if (key == modifierRightShiftKey) {
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modifierFlag ^= modifierRightShift;
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} else if (key == modifierLeftShiftKey) {
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modifierFlag ^= modifierLeftShift;
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}
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}
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bool HackadayCommunicatorKeyboard::isModifierKey(uint8_t key)
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{
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return (key == modifierRightShiftKey || key == modifierLeftShiftKey);
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}
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#endif
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26
src/input/HackadayCommunicatorKeyboard.h
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26
src/input/HackadayCommunicatorKeyboard.h
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@@ -0,0 +1,26 @@
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#include "TCA8418KeyboardBase.h"
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class HackadayCommunicatorKeyboard : public TCA8418KeyboardBase
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{
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public:
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HackadayCommunicatorKeyboard();
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void reset(void);
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void trigger(void) override;
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virtual ~HackadayCommunicatorKeyboard() {}
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protected:
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void pressed(uint8_t key) override;
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void released(void) override;
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void updateModifierFlag(uint8_t key);
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bool isModifierKey(uint8_t key);
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private:
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uint8_t modifierFlag; // Flag to indicate if a modifier key is pressed
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uint32_t last_modifier_time; // Timestamp of the last modifier key press
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int8_t last_key;
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int8_t next_key;
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uint32_t last_tap;
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uint8_t char_idx;
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int32_t tap_interval;
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};
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@@ -7,6 +7,8 @@
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#include "TDeckProKeyboard.h"
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#elif defined(T_LORA_PAGER)
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#include "TLoraPagerKeyboard.h"
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#elif defined(HACKADAY_COMMUNICATOR)
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#include "HackadayCommunicatorKeyboard.h"
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#else
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#include "TCA8418Keyboard.h"
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#endif
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@@ -20,6 +22,8 @@ KbI2cBase::KbI2cBase(const char *name)
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TCAKeyboard(*(new TDeckProKeyboard()))
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#elif defined(T_LORA_PAGER)
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TCAKeyboard(*(new TLoraPagerKeyboard()))
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#elif defined(HACKADAY_COMMUNICATOR)
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TCAKeyboard(*(new HackadayCommunicatorKeyboard()))
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#else
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TCAKeyboard(*(new TCA8418Keyboard()))
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#endif
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@@ -328,7 +332,7 @@ int32_t KbI2cBase::runOnce()
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break;
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}
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if (e.inputEvent != INPUT_BROKER_NONE) {
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LOG_DEBUG("TCA8418 Notifying: %i Char: %c", e.inputEvent, e.kbchar);
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// LOG_DEBUG("TCA8418 Notifying: %i Char: %c", e.inputEvent, e.kbchar);
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this->notifyObservers(&e);
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}
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TCAKeyboard.trigger();
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