- #pragma once
-
- #include "quantum.h"
-
- #include <stdint.h>
-
- #ifndef JOYSTICK_BUTTON_COUNT
- # define JOYSTICK_BUTTON_COUNT 8
- #endif
-
- #ifndef JOYSTICK_AXES_COUNT
- # define JOYSTICK_AXES_COUNT 4
- #endif
-
- #ifndef JOYSTICK_AXES_RESOLUTION
- # define JOYSTICK_AXES_RESOLUTION 8
- #elif JOYSTICK_AXES_RESOLUTION < 8 || JOYSTICK_AXES_RESOLUTION > 16
- # error JOYSTICK_AXES_RESOLUTION must be between 8 and 16
- #endif
-
- #define JOYSTICK_RESOLUTION ((1L << (JOYSTICK_AXES_RESOLUTION - 1)) - 1)
-
- // configure on input_pin of the joystick_axes array entry to JS_VIRTUAL_AXIS
- // to prevent it from being read from the ADC. This allows outputing forged axis value.
- //
- #define JS_VIRTUAL_AXIS 0xFF
-
- #define JOYSTICK_AXIS_VIRTUAL \
- { JS_VIRTUAL_AXIS, JS_VIRTUAL_AXIS, JS_VIRTUAL_AXIS, 0, 1023 }
- #define JOYSTICK_AXIS_IN(INPUT_PIN, LOW, REST, HIGH) \
- { JS_VIRTUAL_AXIS, INPUT_PIN, JS_VIRTUAL_AXIS, LOW, REST, HIGH }
- #define JOYSTICK_AXIS_IN_OUT(INPUT_PIN, OUTPUT_PIN, LOW, REST, HIGH) \
- { OUTPUT_PIN, INPUT_PIN, JS_VIRTUAL_AXIS, LOW, REST, HIGH }
- #define JOYSTICK_AXIS_IN_OUT_GROUND(INPUT_PIN, OUTPUT_PIN, GROUND_PIN, LOW, REST, HIGH) \
- { OUTPUT_PIN, INPUT_PIN, GROUND_PIN, LOW, REST, HIGH }
-
- typedef struct {
- pin_t output_pin;
- pin_t input_pin;
- pin_t ground_pin;
-
- // the AVR ADC offers 10 bit precision, with significant bits on the higher part
- uint16_t min_digit;
- uint16_t mid_digit;
- uint16_t max_digit;
- } joystick_config_t;
-
- extern joystick_config_t joystick_axes[JOYSTICK_AXES_COUNT];
-
- enum joystick_status { JS_INITIALIZED = 1, JS_UPDATED = 2 };
-
- typedef struct {
- uint8_t buttons[JOYSTICK_BUTTON_COUNT / 8 + 1];
-
- int16_t axes[JOYSTICK_AXES_COUNT];
- uint8_t status : 2;
- } joystick_t;
-
- extern joystick_t joystick_status;
-
- // to be implemented in the hid protocol library
- void send_joystick_packet(joystick_t *joystick);
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