| /* |
| * Copyright 2023 Fabian Blatz <fabianblatz@gmail.com> |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| #include "lvgl_common_input.h" |
| |
| #include <zephyr/device.h> |
| #include <zephyr/kernel.h> |
| #include <zephyr/logging/log.h> |
| #include <lvgl_input_device.h> |
| #include "lvgl_pointer_input.h" |
| #include "lvgl_button_input.h" |
| #include "lvgl_encoder_input.h" |
| |
| LOG_MODULE_DECLARE(lvgl); |
| |
| lv_indev_t *lvgl_input_get_indev(const struct device *dev) |
| { |
| struct lvgl_common_input_data *common_data = dev->data; |
| |
| return common_data->indev; |
| } |
| |
| static void lvgl_input_read_cb(lv_indev_drv_t *drv, lv_indev_data_t *data) |
| { |
| const struct device *dev = drv->user_data; |
| const struct lvgl_common_input_config *cfg = dev->config; |
| struct lvgl_common_input_data *common_data = dev->data; |
| |
| if (k_msgq_get(cfg->event_msgq, data, K_NO_WAIT) != 0) { |
| memcpy(data, &common_data->previous_event, sizeof(lv_indev_data_t)); |
| if (drv->type == LV_INDEV_TYPE_ENCODER) { |
| data->enc_diff = 0; /* For encoders, clear last movement */ |
| } |
| data->continue_reading = false; |
| return; |
| } |
| |
| memcpy(&common_data->previous_event, data, sizeof(lv_indev_data_t)); |
| data->continue_reading = k_msgq_num_used_get(cfg->event_msgq) > 0; |
| } |
| |
| int lvgl_input_register_driver(lv_indev_type_t indev_type, const struct device *dev) |
| { |
| /* Currently no indev binding has its dedicated data |
| * if that ever changes ensure that `lvgl_common_input_data` |
| * remains the first member |
| */ |
| struct lvgl_common_input_data *common_data = dev->data; |
| |
| if (common_data == NULL) { |
| return -EINVAL; |
| } |
| |
| lv_indev_drv_init(&common_data->indev_drv); |
| common_data->indev_drv.type = indev_type; |
| common_data->indev_drv.read_cb = lvgl_input_read_cb; |
| common_data->indev_drv.user_data = (void *)dev; |
| common_data->indev = lv_indev_drv_register(&common_data->indev_drv); |
| |
| if (common_data->indev == NULL) { |
| return -EINVAL; |
| } |
| |
| return 0; |
| } |
| |
| #define LV_DEV_INIT(node_id, init_fn) \ |
| do { \ |
| int ret = init_fn(DEVICE_DT_GET(node_id)); \ |
| if (ret) { \ |
| return ret; \ |
| } \ |
| } while (0) |
| |
| int lvgl_init_input_devices(void) |
| { |
| #ifdef CONFIG_LV_Z_POINTER_INPUT |
| DT_FOREACH_STATUS_OKAY_VARGS(zephyr_lvgl_pointer_input, LV_DEV_INIT, |
| lvgl_pointer_input_init); |
| #endif /* CONFIG_LV_Z_POINTER_INPUT */ |
| |
| #ifdef CONFIG_LV_Z_BUTTON_INPUT |
| DT_FOREACH_STATUS_OKAY_VARGS(zephyr_lvgl_button_input, LV_DEV_INIT, lvgl_button_input_init); |
| #endif /* CONFIG_LV_Z_BUTTON_INPUT */ |
| |
| #ifdef CONFIG_LV_Z_ENCODER_INPUT |
| DT_FOREACH_STATUS_OKAY_VARGS(zephyr_lvgl_encoder_input, LV_DEV_INIT, |
| lvgl_encoder_input_init); |
| #endif /* CONFIG_LV_Z_ENCODER_INPUT */ |
| |
| return 0; |
| } |