diff options
Diffstat (limited to 'keyboards/kyria/keymaps/gotham/thumbstick.c')
| -rw-r--r-- | keyboards/kyria/keymaps/gotham/thumbstick.c | 195 |
1 files changed, 195 insertions, 0 deletions
diff --git a/keyboards/kyria/keymaps/gotham/thumbstick.c b/keyboards/kyria/keymaps/gotham/thumbstick.c new file mode 100644 index 0000000000..ec08fb07d4 --- /dev/null +++ b/keyboards/kyria/keymaps/gotham/thumbstick.c @@ -0,0 +1,195 @@ +#include "thumbstick.h" + +void thumbstick_init(void) { + thumbstickTimer = 0; + thumbstickScrollTimer = 0; + + thumbstick_state.config.mode = THUMBSTICK_MODE_MOUSE; + thumbstick_state.config.deadZone = THUMBSTICK_DEAD_ZONE; + thumbstick_state.config.fineZone = THUMBSTICK_FINE_ZONE; + thumbstick_state.config.speed = THUMBSTICK_SPEED; + thumbstick_state.config.fineSpeed = THUMBSTICK_FINE_SPEED; + thumbstick_state.config.axisSeparation = THUMBSTICK_AXIS_SEPARATION; + thumbstick_state.config.eightAxis = THUMBSTICK_EIGHT_AXIS; + +#if defined THUMBSTICK_DEBUG + rawX = 0; + rawY = 0; + distX = 0; + distY = 0; + thumbstickLogTimer = 0; +#endif +} + +// Axis-level wrapper to read raw value, do logging and calculate speed +int16_t thumbstick_get_component(uint8_t pin) { + uint16_t analogValue = analogReadPin(pin); + // Compute direction + bool directionIsPositive = (analogValue > THUMBSTICK_RANGE_CENTER); + // Compute distance from the center + uint16_t distance = directionIsPositive ? (analogValue - THUMBSTICK_RANGE_CENTER) : (THUMBSTICK_RANGE_CENTER - analogValue); +#if defined THUMBSTICK_DEBUG + if (pin == THUMBSTICK_PIN_X) { + rawX = analogValue; + distX = distance; + } else { + rawY = analogValue; + distY = distance; + } +#endif + // Compute component (range of [0 to 1023]) + return directionIsPositive ? distance : -(int16_t)distance; +} + +void thumbstick_mode_set(thumbstick_mode_t mode) { thumbstick_state.config.mode = mode; } + +thumbstick_mode_t thumbstick_mode_get(void) { return thumbstick_state.config.mode; } + +void thumbstick_mode_cycle(bool reverse) { + thumbstick_mode_t mode = thumbstick_mode_get(); + if (reverse) { + mode = (mode == 0) ? (_THUMBSTICK_MODE_LAST - 1) : (mode - 1); + } else { + mode = (mode == (_THUMBSTICK_MODE_LAST - 1)) ? 0 : (mode + 1); + } + thumbstick_mode_set(mode); +} + +// Get mouse speed +int16_t thumbstick_get_mouse_speed(int16_t component) { + int16_t maxSpeed; + uint16_t distance = abs(component); + if (distance > THUMBSTICK_FINE_ZONE) { + maxSpeed = THUMBSTICK_SPEED; + } else if (distance > THUMBSTICK_DEAD_ZONE) { + maxSpeed = THUMBSTICK_FINE_SPEED; + } else { + return 0; + } + return (float)maxSpeed * component / THUMBSTICK_RANGE_CENTER; +} + +// Fix direction within one of 8 axes (or 4 if 8-axis is disabled) +thumbstick_direction_t thumbstick_get_discretized_direction(thumbstick_vector_t vector, float axisSeparation, bool eightAxis) { + thumbstick_direction_t direction; + uint16_t absX = abs(vector.x); + uint16_t absY = abs(vector.y); + uint16_t maxComponent = (absX > absY) ? absX : absY; + bool insideDeadZone = (maxComponent <= THUMBSTICK_DEAD_ZONE); + bool outsideDiagonalZone = ((abs(absX - absY) / (float)maxComponent) >= axisSeparation); + if (insideDeadZone) { + direction.up = direction.down = direction.left = direction.right = false; + } else { + direction.up = (vector.y < 0); + direction.down = (vector.y > 0); + direction.left = (vector.x < 0); + direction.right = (vector.x > 0); + // Let only the dominant direction remain under the right conditions + if (outsideDiagonalZone || !eightAxis) { + if (absX > absY) { + direction.up = direction.down = false; + } else { + direction.left = direction.right = false; + } + } + } + return direction; +} + +thumbstick_direction_t scrollDirection; // Declaring global to save stack space +void thumbstick_process(void) { + if (timer_elapsed(thumbstickTimer) > THUMBSTICK_TIMEOUT) { + thumbstickTimer = timer_read(); +#ifndef THUMBSTICK_FLIP_X + thumbstick_state.vector.x = thumbstick_get_component(THUMBSTICK_PIN_X); +#else + thumbstick_state.vector.x = -thumbstick_get_component(THUMBSTICK_PIN_X); +#endif +#ifndef THUMBSTICK_FLIP_Y + thumbstick_state.vector.y = thumbstick_get_component(THUMBSTICK_PIN_Y); +#else + thumbstick_state.vector.y = -thumbstick_get_component(THUMBSTICK_PIN_Y); +#endif + switch (thumbstick_state.config.mode) { + case THUMBSTICK_MODE_MOUSE: + thumbstick_state.report.x = thumbstick_get_mouse_speed(thumbstick_state.vector.x); + thumbstick_state.report.y = thumbstick_get_mouse_speed(thumbstick_state.vector.y); + break; + case THUMBSTICK_MODE_ARROWS: + thumbstick_state.direction = thumbstick_get_discretized_direction(thumbstick_state.vector, thumbstick_state.config.axisSeparation, thumbstick_state.config.eightAxis); + break; + case THUMBSTICK_MODE_SCROLL: + if (timer_elapsed(thumbstickScrollTimer) > THUMBSTICK_SCROLL_TIMEOUT) { + thumbstickScrollTimer = timer_read(); + scrollDirection = thumbstick_get_discretized_direction(thumbstick_state.vector, thumbstick_state.config.axisSeparation, false); + thumbstick_state.report.v = (scrollDirection.up || scrollDirection.down) ? (scrollDirection.up ? THUMBSTICK_SCROLL_SPEED : -THUMBSTICK_SCROLL_SPEED) : 0; + thumbstick_state.report.h = (scrollDirection.left || scrollDirection.right) ? (scrollDirection.left ? -THUMBSTICK_SCROLL_SPEED : THUMBSTICK_SCROLL_SPEED) : 0; + } else { + thumbstick_state.report.v = thumbstick_state.report.h = 0; + } + break; + default: + break; + } + } +} + +void update_keycode_status(uint16_t keycode, bool last, bool current) { + if (last != current) { + if (current) { + register_code16(keycode); + } else { + unregister_code16(keycode); + } + } +} + +void pointing_device_init(void) { thumbstick_init(); } + +void pointing_device_task(void) { + report_mouse_t report = pointing_device_get_report(); + + if (!isLeftHand) { + thumbstick_process(); + switch (thumbstick_state.config.mode) { + case THUMBSTICK_MODE_MOUSE: + report.x = thumbstick_state.report.x; + report.y = thumbstick_state.report.y; +#ifdef THUMBSTICK_DEBUG + if (timer_elapsed(thumbstickLogTimer) > 100) { + thumbstickLogTimer = timer_read(); + uprintf("Raw (%d, %d); Dist (%u, %u); Vec (%d, %d);\n", rawX, rawY, distX, distY, thumbstick_state.vector.x, thumbstick_state.vector.y); + } +#endif + break; + case THUMBSTICK_MODE_ARROWS: + update_keycode_status(KC_UP, thumbstick_state.lastDirection.up, thumbstick_state.direction.up); + update_keycode_status(KC_DOWN, thumbstick_state.lastDirection.down, thumbstick_state.direction.down); + update_keycode_status(KC_LEFT, thumbstick_state.lastDirection.left, thumbstick_state.direction.left); + update_keycode_status(KC_RIGHT, thumbstick_state.lastDirection.right, thumbstick_state.direction.right); + thumbstick_state.lastDirection = thumbstick_state.direction; +#ifdef THUMBSTICK_DEBUG + if (timer_elapsed(thumbstickLogTimer) > 100) { + thumbstickLogTimer = timer_read(); + uprintf("Up %d; Down %d; Left: %d; Right %d; Vec (%d, %d);\n", direction.up, direction.down, direction.left, direction.right, thumbstick_state.vector.x, thumbstick_state.vector.y); + } +#endif + break; + case THUMBSTICK_MODE_SCROLL: + report.v = thumbstick_state.report.v; + report.h = thumbstick_state.report.h; +#ifdef THUMBSTICK_DEBUG + if (timer_elapsed(thumbstickLogTimer) > 100) { + thumbstickLogTimer = timer_read(); + uprintf("Scroll (%d, %d)\n", report.h, report.v); + } +#endif + break; + default: + break; + } + } + + pointing_device_set_report(report); + pointing_device_send(); +} |