Fix joystick initialization (#22953)
parent
13434fc066
commit
77e8867498
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@ -815,15 +815,12 @@ ifeq ($(strip $(JOYSTICK_ENABLE)), yes)
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$(call CATASTROPHIC_ERROR,Invalid JOYSTICK_DRIVER,JOYSTICK_DRIVER="$(JOYSTICK_DRIVER)" is not a valid joystick driver)
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endif
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OPT_DEFS += -DJOYSTICK_ENABLE
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OPT_DEFS += -DJOYSTICK_$(strip $(shell echo $(JOYSTICK_DRIVER) | tr '[:lower:]' '[:upper:]'))
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SRC += $(QUANTUM_DIR)/process_keycode/process_joystick.c
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SRC += $(QUANTUM_DIR)/joystick.c
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ifeq ($(strip $(JOYSTICK_DRIVER)), analog)
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ANALOG_DRIVER_REQUIRED = yes
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OPT_DEFS += -DANALOG_JOYSTICK_ENABLE
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endif
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ifeq ($(strip $(JOYSTICK_DRIVER)), digital)
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OPT_DEFS += -DDIGITAL_JOYSTICK_ENABLE
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endif
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endif
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@ -50,10 +50,6 @@ Axes can be configured using one of the following macros:
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* `JOYSTICK_AXIS_IN(input_pin, low, rest, high)`
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The ADC samples the provided pin. `low`, `high` and `rest` correspond to the minimum, maximum, and resting (or centered) analog values of the axis, respectively.
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* `JOYSTICK_AXIS_IN_OUT(input_pin, output_pin, low, rest, high)`
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Same as `JOYSTICK_AXIS_IN()`, but the provided `output_pin` will be pulled high before `input_pin` is read.
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* `JOYSTICK_AXIS_IN_OUT_GROUND(input_pin, output_pin, ground_pin, low, rest, high)`
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Same as `JOYSTICK_AXIS_IN_OUT()`, but the provided `ground_pin` will be pulled low before reading from `input_pin`.
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* `JOYSTICK_AXIS_VIRTUAL`
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No ADC reading is performed. The value should be provided by user code.
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@ -160,12 +156,8 @@ Describes a single axis.
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#### Members :id=api-joystick-config-t-members
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- `pin_t output_pin`
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A pin to set as output high when reading the analog value, or `JS_VIRTUAL_AXIS`.
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- `pin_t input_pin`
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The pin to read the analog value from, or `JS_VIRTUAL_AXIS`.
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- `pin_t ground_pin`
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A pin to set as output low when reading the analog value, or `JS_VIRTUAL_AXIS`.
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- `uint16_t min_digit`
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The minimum analog value.
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- `uint16_t mid_digit`
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@ -15,10 +15,12 @@
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*/
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#include "joystick.h"
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#include "analog.h"
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#include "wait.h"
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#if defined(JOYSTICK_ANALOG)
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# include "analog.h"
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#endif
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joystick_t joystick_state = {
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.buttons = {0},
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.axes =
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@ -31,21 +33,47 @@ joystick_t joystick_state = {
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};
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// array defining the reading of analog values for each axis
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__attribute__((weak)) joystick_config_t joystick_axes[JOYSTICK_AXIS_COUNT] = {};
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__attribute__((weak)) joystick_config_t joystick_axes[JOYSTICK_AXIS_COUNT] = {
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#if JOYSTICK_AXIS_COUNT > 0
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[0 ...(JOYSTICK_AXIS_COUNT - 1)] = JOYSTICK_AXIS_VIRTUAL
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#endif
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};
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__attribute__((weak)) void joystick_task(void) {
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joystick_read_axes();
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__attribute__((weak)) void joystick_axis_init(uint8_t axis) {
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if (axis >= JOYSTICK_AXIS_COUNT) return;
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#if defined(JOYSTICK_ANALOG)
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setPinInput(joystick_axes[axis].input_pin);
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#endif
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}
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__attribute__((weak)) uint16_t joystick_axis_sample(uint8_t axis) {
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if (axis >= JOYSTICK_AXIS_COUNT) return 0;
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#if defined(JOYSTICK_ANALOG)
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return analogReadPin(joystick_axes[axis].input_pin);
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#else
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// default to resting position
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return joystick_axes[axis].mid_digit;
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#endif
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}
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static inline bool is_virtual_axis(uint8_t axis) {
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return joystick_axes[axis].input_pin == NO_PIN;
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}
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void joystick_flush(void) {
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if (joystick_state.dirty) {
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if (!joystick_state.dirty) return;
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// TODO: host.h?
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void host_joystick_send(joystick_t * joystick);
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host_joystick_send(&joystick_state);
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joystick_state.dirty = false;
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}
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}
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void register_joystick_button(uint8_t button) {
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if (button >= JOYSTICK_BUTTON_COUNT) return;
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joystick_state.buttons[button / 8] |= 1 << (button % 8);
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joystick_state.dirty = true;
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joystick_flush();
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@ -53,6 +81,7 @@ void register_joystick_button(uint8_t button) {
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void unregister_joystick_button(uint8_t button) {
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if (button >= JOYSTICK_BUTTON_COUNT) return;
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joystick_state.buttons[button / 8] &= ~(1 << (button % 8));
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joystick_state.dirty = true;
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joystick_flush();
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@ -61,37 +90,7 @@ void unregister_joystick_button(uint8_t button) {
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int16_t joystick_read_axis(uint8_t axis) {
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if (axis >= JOYSTICK_AXIS_COUNT) return 0;
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// disable pull-up resistor
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writePinLow(joystick_axes[axis].input_pin);
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// if pin was a pull-up input, we need to uncharge it by turning it low
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// before making it a low input
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setPinOutput(joystick_axes[axis].input_pin);
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wait_us(10);
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if (joystick_axes[axis].output_pin != JS_VIRTUAL_AXIS) {
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setPinOutput(joystick_axes[axis].output_pin);
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writePinHigh(joystick_axes[axis].output_pin);
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}
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if (joystick_axes[axis].ground_pin != JS_VIRTUAL_AXIS) {
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setPinOutput(joystick_axes[axis].ground_pin);
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writePinLow(joystick_axes[axis].ground_pin);
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}
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wait_us(10);
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setPinInput(joystick_axes[axis].input_pin);
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wait_us(10);
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#if defined(ANALOG_JOYSTICK_ENABLE) && (defined(__AVR__) || defined(PROTOCOL_CHIBIOS))
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int16_t axis_val = analogReadPin(joystick_axes[axis].input_pin);
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#else
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// default to resting position
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int16_t axis_val = joystick_axes[axis].mid_digit;
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#endif
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int16_t axis_val = joystick_axis_sample(axis);
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// test the converted value against the lower range
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int32_t ref = joystick_axes[axis].mid_digit;
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@ -111,10 +110,22 @@ int16_t joystick_read_axis(uint8_t axis) {
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return ranged_val;
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}
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void joystick_init_axes(void) {
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#if JOYSTICK_AXIS_COUNT > 0
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for (int i = 0; i < JOYSTICK_AXIS_COUNT; ++i) {
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if (is_virtual_axis(i)) {
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continue;
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}
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joystick_axis_init(i);
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}
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#endif
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}
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void joystick_read_axes(void) {
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#if JOYSTICK_AXIS_COUNT > 0
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for (int i = 0; i < JOYSTICK_AXIS_COUNT; ++i) {
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if (joystick_axes[i].input_pin == JS_VIRTUAL_AXIS) {
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if (is_virtual_axis(i)) {
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continue;
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}
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@ -133,3 +144,11 @@ void joystick_set_axis(uint8_t axis, int16_t value) {
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joystick_state.dirty = true;
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}
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}
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void joystick_init(void) {
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joystick_init_axes();
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}
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void joystick_task(void) {
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joystick_read_axes();
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}
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@ -52,24 +52,15 @@
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#define JOYSTICK_MAX_VALUE ((1L << (JOYSTICK_AXIS_RESOLUTION - 1)) - 1)
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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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// configure on input_pin of the joystick_axes array entry to NO_PIN
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// to prevent it from being read from the ADC. This allows outputting forged axis value.
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#define JOYSTICK_AXIS_VIRTUAL \
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{ JS_VIRTUAL_AXIS, JS_VIRTUAL_AXIS, JS_VIRTUAL_AXIS, 0, 1023 }
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{ NO_PIN, 0, JOYSTICK_MAX_VALUE / 2, JOYSTICK_MAX_VALUE }
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#define JOYSTICK_AXIS_IN(INPUT_PIN, LOW, REST, HIGH) \
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{ JS_VIRTUAL_AXIS, INPUT_PIN, JS_VIRTUAL_AXIS, LOW, REST, HIGH }
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#define JOYSTICK_AXIS_IN_OUT(INPUT_PIN, OUTPUT_PIN, LOW, REST, HIGH) \
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{ OUTPUT_PIN, INPUT_PIN, JS_VIRTUAL_AXIS, LOW, REST, HIGH }
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#define JOYSTICK_AXIS_IN_OUT_GROUND(INPUT_PIN, OUTPUT_PIN, GROUND_PIN, LOW, REST, HIGH) \
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{ OUTPUT_PIN, INPUT_PIN, GROUND_PIN, LOW, REST, HIGH }
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{ INPUT_PIN, LOW, REST, HIGH }
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typedef struct {
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pin_t output_pin;
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pin_t input_pin;
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pin_t ground_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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@ -87,6 +78,14 @@ typedef struct {
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extern joystick_t joystick_state;
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/**
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* \brief Handle the initialization of the subsystem.
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*/
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void joystick_init(void);
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/**
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* \brief Handle various subsystem background tasks.
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*/
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void joystick_task(void);
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/**
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@ -117,6 +116,9 @@ void unregister_joystick_button(uint8_t button);
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*/
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int16_t joystick_read_axis(uint8_t axis);
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/**
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* \brief Sample and process the all axis.
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*/
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void joystick_read_axes(void);
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/**
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@ -127,6 +129,4 @@ void joystick_read_axes(void);
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*/
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void joystick_set_axis(uint8_t axis, int16_t value);
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void host_joystick_send(joystick_t *joystick);
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/** \} */
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@ -460,6 +460,9 @@ void keyboard_init(void) {
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#ifdef DIP_SWITCH_ENABLE
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dip_switch_init();
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#endif
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#ifdef JOYSTICK_ENABLE
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joystick_init();
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#endif
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#ifdef SLEEP_LED_ENABLE
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sleep_led_init();
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#endif
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