36c673f5f9
Adds a Kconfig option LV_Z_POINTER_FROM_CHOSEN_TOUCH which automatically creates a lvgl input pointer device from the chosen zephyr,touch node. Signed-off-by: Fabian Blatz <fabianblatz@gmail.com>
139 lines
4.2 KiB
C
139 lines
4.2 KiB
C
/*
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* Copyright 2023 Fabian Blatz <fabianblatz@gmail.com>
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* Copyright 2025 Abderrahmane JARMOUNI
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include "lvgl_common_input.h"
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#include <zephyr/device.h>
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#include <zephyr/kernel.h>
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#include <lvgl_input_device.h>
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#include <lvgl_display.h>
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#include <zephyr/logging/log.h>
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#include "lvgl_pointer_input.h"
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#include "lvgl_button_input.h"
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#include "lvgl_encoder_input.h"
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#include "lvgl_keypad_input.h"
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LOG_MODULE_DECLARE(lvgl, CONFIG_LV_Z_LOG_LEVEL);
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lv_indev_t *lvgl_input_get_indev(const struct device *dev)
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{
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struct lvgl_common_input_data *common_data = dev->data;
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return common_data->indev;
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}
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static void lvgl_input_read_cb(lv_indev_t *indev, lv_indev_data_t *data)
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{
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const struct device *dev = lv_indev_get_user_data(indev);
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const struct lvgl_common_input_config *cfg = dev->config;
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struct lvgl_common_input_data *common_data = dev->data;
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if (k_msgq_get(cfg->event_msgq, data, K_NO_WAIT) != 0) {
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memcpy(data, &common_data->previous_event, sizeof(lv_indev_data_t));
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if (lv_indev_get_type(indev) == LV_INDEV_TYPE_ENCODER) {
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data->enc_diff = 0; /* For encoders, clear last movement */
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}
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data->continue_reading = false;
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return;
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}
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memcpy(&common_data->previous_event, data, sizeof(lv_indev_data_t));
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data->continue_reading = k_msgq_num_used_get(cfg->event_msgq) > 0;
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}
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static lv_display_t *lvgl_input_get_display(const struct device *dev)
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{
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const struct lvgl_common_input_config *cfg = dev->config;
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const struct device *disp_dev = cfg->display_dev;
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struct lvgl_disp_data *lv_disp_data;
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lv_display_t *lv_disp = NULL;
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if (disp_dev == NULL) {
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LOG_DBG("No display phandle is passed in DT, defaulting to LV Default Display");
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return lv_display_get_default();
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}
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for (int i = 0; i < DT_ZEPHYR_DISPLAYS_COUNT; i++) {
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lv_disp = lv_display_get_next(lv_disp);
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if (lv_disp == NULL) {
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LOG_ERR("Could not find LV display objects of all Zephyr displays");
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break;
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}
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lv_disp_data = (struct lvgl_disp_data *)lv_display_get_user_data(lv_disp);
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if (disp_dev == lv_disp_data->display_dev) {
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return lv_disp;
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}
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}
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LOG_ERR("LV display corresponding to display device %s not found", disp_dev->name);
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__ASSERT_NO_MSG(false);
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return NULL;
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}
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int lvgl_input_register_driver(lv_indev_type_t indev_type, const struct device *dev)
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{
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/* Ensure that `lvgl_common_input_data` remains the first member
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* of indev dedicated data
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*/
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struct lvgl_common_input_data *common_data = dev->data;
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lv_display_t *disp;
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if (common_data == NULL) {
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return -EINVAL;
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}
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common_data->indev = lv_indev_create();
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if (common_data->indev == NULL) {
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return -EINVAL;
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}
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lv_indev_set_type(common_data->indev, indev_type);
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lv_indev_set_read_cb(common_data->indev, lvgl_input_read_cb);
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lv_indev_set_user_data(common_data->indev, (void *)dev);
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disp = lvgl_input_get_display(dev);
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lv_indev_set_display(common_data->indev, disp);
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return 0;
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}
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#define LV_DEV_INIT(node_id, init_fn) \
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do { \
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int ret = init_fn(DEVICE_DT_GET(node_id)); \
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if (ret) { \
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return ret; \
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} \
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} while (0);
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int lvgl_init_input_devices(void)
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{
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#ifdef CONFIG_LV_Z_POINTER_INPUT
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DT_FOREACH_STATUS_OKAY_VARGS(zephyr_lvgl_pointer_input, LV_DEV_INIT,
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lvgl_pointer_input_init);
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#endif /* CONFIG_LV_Z_POINTER_INPUT */
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#ifdef CONFIG_LV_Z_BUTTON_INPUT
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DT_FOREACH_STATUS_OKAY_VARGS(zephyr_lvgl_button_input, LV_DEV_INIT, lvgl_button_input_init);
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#endif /* CONFIG_LV_Z_BUTTON_INPUT */
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#ifdef CONFIG_LV_Z_ENCODER_INPUT
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DT_FOREACH_STATUS_OKAY_VARGS(zephyr_lvgl_encoder_input, LV_DEV_INIT,
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lvgl_encoder_input_init);
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#endif /* CONFIG_LV_Z_ENCODER_INPUT */
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#ifdef CONFIG_LV_Z_KEYPAD_INPUT
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DT_FOREACH_STATUS_OKAY_VARGS(zephyr_lvgl_keypad_input, LV_DEV_INIT, lvgl_keypad_input_init);
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#endif /* CONFIG_LV_Z_KEYPAD_INPUT */
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#ifdef CONFIG_LV_Z_POINTER_FROM_CHOSEN_TOUCH
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lvgl_pointer_input_init(lvgl_pointer_from_chosen_get());
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#endif
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return 0;
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}
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