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
48 lines
No EOL
1 KiB
C
48 lines
No EOL
1 KiB
C
#ifndef JOYSTICK_H
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#define JOYSTICK_H
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#ifndef JOYSTICK_BUTTON_COUNT
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#define JOYSTICK_BUTTON_COUNT 8
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#endif
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#ifndef JOYSTICK_AXES_COUNT
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#define JOYSTICK_AXES_COUNT 4
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#endif
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#include <stdint.h>
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//configure on input_pin of the joystick_axes array entry to JS_VIRTUAL_AXIS
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// to prevent it from being read from the ADC. This allows outputing forged axis value.
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//
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#define JS_VIRTUAL_AXIS 0xFF
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typedef struct {
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uint8_t output_pin;
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uint8_t input_pin;
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//the AVR ADC offers 10 bit precision, with significant bits on the higher part
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uint16_t min_digit;
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uint16_t max_digit;
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} joystick_config_t;
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extern joystick_config_t joystick_axes[JOYSTICK_AXES_COUNT];
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enum joystick_status{
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JS_INITIALIZED = 1,
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JS_UPDATED = 2
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};
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typedef struct {
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uint8_t buttons[JOYSTICK_BUTTON_COUNT/8+1];
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int8_t axes[JOYSTICK_AXES_COUNT];
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uint8_t status:2;
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} joystick_t;
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extern joystick_t joystick_status;
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//to be implemented in the hid protocol library
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void send_joystick_packet(joystick_t* joystick);
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#endif //JOYSTICK_H
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