100 lines
3.1 KiB
C
100 lines
3.1 KiB
C
/*
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* Copyright 2023 Fabian Blatz <fabianblatz@gmail.com>
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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 <zephyr/logging/log.h>
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#include <lvgl_input_device.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_drv_t *drv, lv_indev_data_t *data)
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{
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const struct device *dev = drv->user_data;
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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 (drv->type == 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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int lvgl_input_register_driver(lv_indev_type_t indev_type, const struct device *dev)
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{
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/* Currently no indev binding has its dedicated data
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* if that ever changes ensure that `lvgl_common_input_data`
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* remains the first member
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*/
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struct lvgl_common_input_data *common_data = dev->data;
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if (common_data == NULL) {
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return -EINVAL;
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}
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lv_indev_drv_init(&common_data->indev_drv);
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common_data->indev_drv.type = indev_type;
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common_data->indev_drv.read_cb = lvgl_input_read_cb;
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common_data->indev_drv.user_data = (void *)dev;
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common_data->indev = lv_indev_drv_register(&common_data->indev_drv);
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if (common_data->indev == NULL) {
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return -EINVAL;
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}
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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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return 0;
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}
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