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https://github.com/mfulz/qmk_firmware.git
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3cf7611139
add documentation for HID joystick Add joystick_task to read analog axes values even when no key is pressed or release. update doc Update docs/feature_joystick.md Manage pin setup and read to maintain matrix scan after analog read
80 lines
2.1 KiB
C
80 lines
2.1 KiB
C
#include "process_joystick.h"
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#include <quantum/joystick.h>
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#include <quantum/quantum_keycodes.h>
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#ifdef __AVR__
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# include <drivers/avr/analog.h>
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#endif
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#include <string.h>
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bool process_joystick_buttons(uint16_t keycode, keyrecord_t *record);
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bool process_joystick(uint16_t keycode, keyrecord_t *record){
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if (process_joystick_buttons(keycode, record)
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&& (joystick_status.status & JS_UPDATED)>0){
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send_joystick_packet(&joystick_status);
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joystick_status.status &= ~JS_UPDATED;
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}
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return true;
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}
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__attribute__ ((weak))
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void joystick_task(void){
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if (process_joystick_analog() && (joystick_status.status & JS_UPDATED)){
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send_joystick_packet(&joystick_status);
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joystick_status.status &= ~JS_UPDATED;
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}
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}
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bool process_joystick_buttons(uint16_t keycode, keyrecord_t *record){
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if (keycode < JS_BUTTON0 || keycode > JS_BUTTON_MAX){
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return true;
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} else {
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if (record->event.pressed){
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joystick_status.buttons[(keycode-JS_BUTTON0)/8] |= 1<<(keycode%8);
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} else {
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joystick_status.buttons[(keycode-JS_BUTTON0)/8] &= ~(1<<(keycode%8));
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}
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joystick_status.status |= JS_UPDATED;
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}
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return true;
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}
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__attribute__ ((weak))
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bool process_joystick_analog(){
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#if JOYSTICK_AXES_COUNT > 0
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for (int axis_index=0 ; axis_index<JOYSTICK_AXES_COUNT ; ++axis_index){
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if (joystick_axes[axis_index].output_pin==JS_VIRTUAL_AXIS || joystick_axes[axis_index].input_pin==JS_VIRTUAL_AXIS){
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continue;
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}
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setPinOutput(joystick_axes[axis_index].output_pin);
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writePinHigh(joystick_axes[axis_index].output_pin);
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//disable pull-up resistance
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setPinInput(joystick_axes[axis_index].input_pin);
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writePinLow(joystick_axes[axis_index].input_pin);
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#ifdef __AVR__
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int16_t axis_val = analogReadPin(joystick_axes[axis_index].input_pin);
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#else
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int16_t axis_val = 0;
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#endif
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if (axis_val!=joystick_status.axes[axis_index]){
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joystick_status.axes[axis_index] = axis_val;
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joystick_status.status |= JS_UPDATED;
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}
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writePinLow(joystick_axes[axis_index].output_pin);
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}
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#endif
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return true;
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}
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