55 lines
1.5 KiB
C
55 lines
1.5 KiB
C
#pragma once
|
|
|
|
#ifndef JOYSTICK_BUTTON_COUNT
|
|
# define JOYSTICK_BUTTON_COUNT 8
|
|
#endif
|
|
|
|
#ifndef JOYSTICK_AXES_COUNT
|
|
# define JOYSTICK_AXES_COUNT 4
|
|
#endif
|
|
|
|
#include "quantum.h"
|
|
|
|
#include <stdint.h>
|
|
|
|
// 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);
|