Tuyaopen/peripheral Joystick

TuyaOpen TDL Joystick

A joystick = a 2-axis ADC stick plus a push button. The TDL layer reuses the button event model and adds 8 directional events. Events arrive via callback; analog position is read on demand.

Usually a custom peripheral. Unless the board adapts a joystick, register the driver yourself (button GPIO + ADC channels for X/Y) and add CONFIG_ENABLE_JOYSTICK=y to app_default.config.

Driver Registration (TDD)

#include "tdd_joystick.h"

static OPERATE_RET app_joystick_register(void)
{
    JOYSTICK_GPIO_CFG_T hw = {
        .btn_pin            = TUYA_GPIO_NUM_12,   // push-button pin
        .level              = TUYA_GPIO_LEVEL_LOW,
        .pin_type.gpio_pull = TUYA_GPIO_PULLUP,
        .adc_num            = TUYA_ADC_NUM_0,
        .adc_ch_x           = 0,                  // ADC channel for X axis
        .adc_ch_y           = 1,                  // ADC channel for Y axis
        .adc_cfg = {
            .ch_list.data = (1 << 0) | (1 << 1),
            .ch_nums      = 2,
            .width        = 12,
            .mode         = TUYA_ADC_CONTINUOUS,
            .type         = TUYA_ADC_INNER_SAMPLE_VOL,
        },
    };
    return tdd_joystick_register(JOYSTICK_NAME, &hw);
}

GPIO / ADC numbers come from .tuyaopen/ide/board.json (or the user) for a custom build.

Headers

#include "tdl_joystick_manage.h"

Usage Template

#include "tal_api.h"
#include "tkl_output.h"
#include "tdl_joystick_manage.h"

static TDL_JOYSTICK_HANDLE s_js_hdl = NULL;

static void app_joystick_cb(char *name, TDL_JOYSTICK_TOUCH_EVENT_E event, void *argc)
{
    switch (event) {
    case TDL_JOYSTICK_UP:                    PR_NOTICE("up");           break;
    case TDL_JOYSTICK_DOWN:                  PR_NOTICE("down");         break;
    case TDL_JOYSTICK_LEFT:                  PR_NOTICE("left");         break;
    case TDL_JOYSTICK_RIGHT:                 PR_NOTICE("right");        break;
    case TDL_JOYSTICK_BUTTON_PRESS_SINGLE_CLICK: PR_NOTICE("click");   break;
    default: break;
    }
}

void app_joystick_init(void)
{
    app_joystick_register();                 /* TDD register (see above) */

    TDL_JOYSTICK_CFG_T cfg = {
        .button_cfg = {
            .long_start_valid_time     = 3000,
            .long_keep_timer           = 1000,
            .button_debounce_time      = 50,
            .button_repeat_valid_count = 2,
            .button_repeat_valid_time  = 50,
        },
        .adc_cfg = {
            .adc_max_val      = 8192,        /* full-scale ADC reading */
            .adc_min_val      = 0,
            .normalized_range = 10,          /* calibrated X/Y → ±10 */
            .sensitivity      = 2,           /* must be < normalized_range */
        },
    };

    if (OPRT_OK != tdl_joystick_create(JOYSTICK_NAME, &cfg, &s_js_hdl)) {
        PR_ERR("joystick create failed");
        return;
    }

    /* Register only the events you need. */
    tdl_joystick_event_register(s_js_hdl, TDL_JOYSTICK_UP,    app_joystick_cb);
    tdl_joystick_event_register(s_js_hdl, TDL_JOYSTICK_DOWN,  app_joystick_cb);
    tdl_joystick_event_register(s_js_hdl, TDL_JOYSTICK_LEFT,  app_joystick_cb);
    tdl_joystick_event_register(s_js_hdl, TDL_JOYSTICK_RIGHT, app_joystick_cb);
    tdl_joystick_event_register(s_js_hdl, TDL_JOYSTICK_BUTTON_PRESS_SINGLE_CLICK, app_joystick_cb);
}

/* Read analog position on demand. */
void app_joystick_read(void)
{
    int x = 0, y = 0;
    tdl_joystick_calibrated_xy(s_js_hdl, &x, &y);   /* normalized ±range */
    PR_DEBUG("joystick x=%d y=%d", x, y);
}

API Reference

Event Types (TDL_JOYSTICK_TOUCH_EVENT_E)

Enable Macro and NAME Macro

CONFIG_ENABLE_JOYSTICK=y          # enables the joystick subsystem (custom peripheral)
CONFIG_JOYSTICK_NAME="joystick"   # device name passed to register + create

JOYSTICK_NAME is passed to both tdd_joystick_register() and tdl_joystick_create().

Reference Example

examples/peripherals/joystick/