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89 lines
2.5 KiB
89 lines
2.5 KiB
/* |
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* Copyright (c) 2020 The ZMK Contributors |
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* |
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* SPDX-License-Identifier: MIT |
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*/ |
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#include <kernel.h> |
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#include <bluetooth/services/bas.h> |
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#include <logging/log.h> |
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LOG_MODULE_DECLARE(zmk, CONFIG_ZMK_LOG_LEVEL); |
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#include <zmk/display.h> |
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#include <zmk/display/widgets/battery_status.h> |
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#include <zmk/usb.h> |
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#include <zmk/events/usb_conn_state_changed.h> |
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#include <zmk/event_manager.h> |
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#include <zmk/events/battery_state_changed.h> |
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static sys_slist_t widgets = SYS_SLIST_STATIC_INIT(&widgets); |
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struct battery_status_state { |
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uint8_t level; |
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#if IS_ENABLED(CONFIG_USB) |
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bool usb_present; |
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#endif |
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}; |
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static void set_battery_symbol(lv_obj_t *label, struct battery_status_state state) { |
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char text[2] = " "; |
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uint8_t level = state.level; |
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#if IS_ENABLED(CONFIG_USB) |
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if (state.usb_present) { |
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strcpy(text, LV_SYMBOL_CHARGE); |
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} |
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#endif /* IS_ENABLED(CONFIG_USB) */ |
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if (level > 95) { |
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strcat(text, LV_SYMBOL_BATTERY_FULL); |
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} else if (level > 65) { |
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strcat(text, LV_SYMBOL_BATTERY_3); |
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} else if (level > 35) { |
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strcat(text, LV_SYMBOL_BATTERY_2); |
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} else if (level > 5) { |
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strcat(text, LV_SYMBOL_BATTERY_1); |
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} else { |
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strcat(text, LV_SYMBOL_BATTERY_EMPTY); |
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} |
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lv_label_set_text(label, text); |
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} |
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void battery_status_update_cb(struct battery_status_state state) { |
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struct zmk_widget_battery_status *widget; |
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SYS_SLIST_FOR_EACH_CONTAINER(&widgets, widget, node) { set_battery_symbol(widget->obj, state); } |
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} |
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static struct battery_status_state battery_status_get_state(const zmk_event_t *eh) { |
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return (struct battery_status_state) { |
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.level = bt_bas_get_battery_level(), |
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#if IS_ENABLED(CONFIG_USB) |
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.usb_present = zmk_usb_is_powered(), |
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#endif /* IS_ENABLED(CONFIG_USB) */ |
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}; |
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} |
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ZMK_DISPLAY_WIDGET_LISTENER(widget_battery_status, struct battery_status_state, |
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battery_status_update_cb, battery_status_get_state) |
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ZMK_SUBSCRIPTION(widget_battery_status, zmk_battery_state_changed); |
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#if IS_ENABLED(CONFIG_USB) |
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ZMK_SUBSCRIPTION(widget_battery_status, zmk_usb_conn_state_changed); |
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#endif /* IS_ENABLED(CONFIG_USB) */ |
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int zmk_widget_battery_status_init(struct zmk_widget_battery_status *widget, lv_obj_t *parent) { |
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widget->obj = lv_label_create(parent, NULL); |
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lv_obj_set_size(widget->obj, 40, 15); |
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sys_slist_append(&widgets, &widget->node); |
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widget_battery_status_init(); |
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return 0; |
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} |
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lv_obj_t *zmk_widget_battery_status_obj(struct zmk_widget_battery_status *widget) { |
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return widget->obj; |
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}
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