forked from mfulz_github/qmk_firmware
b030c45705
Allow output pin to be JS_VIRTUAL_AXIS if the axis is connected to Vcc instead of an output pin from the MCU. Fix joystick report id Fix broken v-usb hid joystick interface. Make it more resilient to unusual settings (none multiple of eight button count, 0 buttons or 0 axes) Correct adc reading for multiple axes. Piecewise range conversion for uncentered raw value range. Input, output and ground pin configuration per axis. Documentation fixes
55 lines
1.6 KiB
C
55 lines
1.6 KiB
C
#ifndef JOYSTICK_H
|
|
#define JOYSTICK_H
|
|
|
|
#ifndef JOYSTICK_BUTTON_COUNT
|
|
#define JOYSTICK_BUTTON_COUNT 8
|
|
#endif
|
|
|
|
#ifndef JOYSTICK_AXES_COUNT
|
|
#define JOYSTICK_AXES_COUNT 4
|
|
#endif
|
|
|
|
#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 {
|
|
uint8_t output_pin;
|
|
uint8_t input_pin;
|
|
uint8_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);
|
|
|
|
#endif //JOYSTICK_H
|