89 lines
3.4 KiB
C
89 lines
3.4 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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#define DT_DRV_COMPAT zephyr_lvgl_button_input
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#include "lvgl_common_input.h"
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#include "lvgl_button_input.h"
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#include <zephyr/logging/log.h>
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LOG_MODULE_DECLARE(lvgl, CONFIG_LV_Z_LOG_LEVEL);
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struct lvgl_button_input_config {
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struct lvgl_common_input_config common_config; /* Needs to be first member */
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const uint16_t *input_codes;
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uint8_t num_codes;
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const lv_coord_t *coordinates;
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};
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static void lvgl_button_process_event(struct input_event *evt, void *user_data)
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{
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const struct device *dev = user_data;
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struct lvgl_common_input_data *data = dev->data;
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const struct lvgl_button_input_config *cfg = dev->config;
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uint8_t i;
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for (i = 0; i < cfg->num_codes; i++) {
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if (evt->code == cfg->input_codes[i]) {
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break;
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}
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}
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if (i == cfg->num_codes) {
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LOG_DBG("Ignored input event: %u", evt->code);
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return;
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}
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data->pending_event.btn_id = i;
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data->pending_event.state = evt->value ? LV_INDEV_STATE_PR : LV_INDEV_STATE_REL;
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if (k_msgq_put(cfg->common_config.event_msgq, &data->pending_event, K_NO_WAIT) != 0) {
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LOG_WRN("Could not put input data into queue");
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}
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}
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int lvgl_button_input_init(const struct device *dev)
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{
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struct lvgl_common_input_data *data = dev->data;
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const struct lvgl_button_input_config *cfg = dev->config;
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int ret;
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ret = lvgl_input_register_driver(LV_INDEV_TYPE_BUTTON, dev);
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if (ret < 0) {
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return ret;
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}
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lv_indev_set_button_points(data->indev, (const lv_point_t *)cfg->coordinates);
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return ret;
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}
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#define ASSERT_PROPERTIES(inst) \
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BUILD_ASSERT(DT_INST_PROP_LEN(inst, input_codes) * 2 == \
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DT_INST_PROP_LEN(inst, coordinates), \
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"Property coordinates must contain one coordinate per input-code.")
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#define LVGL_BUTTON_INPUT_DEFINE(inst) \
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ASSERT_PROPERTIES(inst); \
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LVGL_INPUT_DEFINE(inst, button, CONFIG_LV_Z_BUTTON_INPUT_MSGQ_COUNT, \
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lvgl_button_process_event); \
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static const uint16_t lvgl_button_input_codes_##inst[] = DT_INST_PROP(inst, input_codes); \
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static const lv_coord_t lvgl_button_coordinates_##inst[] = \
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DT_INST_PROP(inst, coordinates); \
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static const struct lvgl_button_input_config lvgl_button_input_config_##inst = { \
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.common_config.event_msgq = &LVGL_INPUT_EVENT_MSGQ(inst, button), \
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.input_codes = lvgl_button_input_codes_##inst, \
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.num_codes = DT_INST_PROP_LEN(inst, input_codes), \
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.coordinates = lvgl_button_coordinates_##inst, \
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}; \
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static struct lvgl_common_input_data lvgl_common_input_data_##inst; \
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DEVICE_DT_INST_DEFINE(inst, NULL, NULL, &lvgl_common_input_data_##inst, \
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&lvgl_button_input_config_##inst, POST_KERNEL, \
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CONFIG_INPUT_INIT_PRIORITY, NULL);
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DT_INST_FOREACH_STATUS_OKAY(LVGL_BUTTON_INPUT_DEFINE)
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