230 lines
8.5 KiB
C
230 lines
8.5 KiB
C
/*
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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 <sys/util.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/matrix.h>
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#include <zmk/sensors.h>
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#include <zmk/keymap.h>
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#include <drivers/behavior.h>
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#include <zmk/behavior.h>
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#include <zmk/event_manager.h>
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#include <zmk/events/position_state_changed.h>
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#include <zmk/events/layer_state_changed.h>
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#include <zmk/events/sensor_event.h>
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static zmk_keymap_layers_state _zmk_keymap_layer_state = 0;
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static uint8_t _zmk_keymap_layer_default = 0;
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#define DT_DRV_COMPAT zmk_keymap
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#define LAYER_CHILD_LEN(node) 1 +
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#define ZMK_KEYMAP_NODE DT_DRV_INST(0)
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#define ZMK_KEYMAP_LAYERS_LEN (DT_INST_FOREACH_CHILD(0, LAYER_CHILD_LEN) 0)
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#define LAYER_NODE(l) DT_PHANDLE_BY_IDX(ZMK_KEYMAP_NODE, layers, l)
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#define _TRANSFORM_ENTRY(idx, layer) \
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{ \
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.behavior_dev = DT_LABEL(DT_PHANDLE_BY_IDX(layer, bindings, idx)), \
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.param1 = COND_CODE_0(DT_PHA_HAS_CELL_AT_IDX(layer, bindings, idx, param1), (0), \
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(DT_PHA_BY_IDX(layer, bindings, idx, param1))), \
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.param2 = COND_CODE_0(DT_PHA_HAS_CELL_AT_IDX(layer, bindings, idx, param2), (0), \
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(DT_PHA_BY_IDX(layer, bindings, idx, param2))), \
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},
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#define TRANSFORMED_LAYER(node) {UTIL_LISTIFY(DT_PROP_LEN(node, bindings), _TRANSFORM_ENTRY, node)},
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#if ZMK_KEYMAP_HAS_SENSORS
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#define _TRANSFORM_SENSOR_ENTRY(idx, layer) \
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{ \
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.behavior_dev = DT_LABEL(DT_PHANDLE_BY_IDX(layer, sensor_bindings, idx)), \
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.param1 = COND_CODE_0(DT_PHA_HAS_CELL_AT_IDX(layer, sensor_bindings, idx, param1), (0), \
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(DT_PHA_BY_IDX(layer, sensor_bindings, idx, param1))), \
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.param2 = COND_CODE_0(DT_PHA_HAS_CELL_AT_IDX(layer, sensor_bindings, idx, param2), (0), \
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(DT_PHA_BY_IDX(layer, sensor_bindings, idx, param2))), \
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},
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#define SENSOR_LAYER(node) \
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COND_CODE_1( \
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DT_NODE_HAS_PROP(node, sensor_bindings), \
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({UTIL_LISTIFY(DT_PROP_LEN(node, sensor_bindings), _TRANSFORM_SENSOR_ENTRY, node)}), \
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({})),
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#endif /* ZMK_KEYMAP_HAS_SENSORS */
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// State
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// When a behavior handles a key position "down" event, we record the layer state
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// here so that even if that layer is deactivated before the "up", event, we
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// still send the release event to the behavior in that layer also.
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static uint32_t zmk_keymap_active_behavior_layer[ZMK_KEYMAP_LEN];
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static struct zmk_behavior_binding zmk_keymap[ZMK_KEYMAP_LAYERS_LEN][ZMK_KEYMAP_LEN] = {
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DT_INST_FOREACH_CHILD(0, TRANSFORMED_LAYER)};
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#if ZMK_KEYMAP_HAS_SENSORS
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static struct zmk_behavior_binding zmk_sensor_keymap[ZMK_KEYMAP_LAYERS_LEN]
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[ZMK_KEYMAP_SENSORS_LEN] = {
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DT_INST_FOREACH_CHILD(0, SENSOR_LAYER)};
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#endif /* ZMK_KEYMAP_HAS_SENSORS */
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static inline int set_layer_state(uint8_t layer, bool state) {
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if (layer >= 32) {
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return -EINVAL;
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}
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WRITE_BIT(_zmk_keymap_layer_state, layer, state);
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ZMK_EVENT_RAISE(create_layer_state_changed(layer, state));
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return 0;
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}
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uint8_t zmk_keymap_layer_default() { return _zmk_keymap_layer_default; }
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zmk_keymap_layers_state zmk_keymap_layer_state() { return _zmk_keymap_layer_state; }
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bool zmk_keymap_layer_active(uint8_t layer) {
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return (_zmk_keymap_layer_state & (BIT(layer))) == (BIT(layer));
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};
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uint8_t zmk_keymap_highest_layer_active() {
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for (uint8_t layer = 31; layer > 0; layer--) {
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if (zmk_keymap_layer_active(layer)) {
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return layer;
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}
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}
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return zmk_keymap_layer_default();
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}
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int zmk_keymap_layer_activate(uint8_t layer) { return set_layer_state(layer, true); };
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int zmk_keymap_layer_deactivate(uint8_t layer) { return set_layer_state(layer, false); };
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int zmk_keymap_layer_toggle(uint8_t layer) {
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if (zmk_keymap_layer_active(layer)) {
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return zmk_keymap_layer_deactivate(layer);
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}
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return zmk_keymap_layer_activate(layer);
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};
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bool is_active_layer(uint8_t layer, zmk_keymap_layers_state layer_state) {
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return (layer_state & BIT(layer)) == BIT(layer) || layer == _zmk_keymap_layer_default;
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}
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int zmk_keymap_apply_position_state(int layer, uint32_t position, bool pressed, int64_t timestamp) {
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struct zmk_behavior_binding *binding = &zmk_keymap[layer][position];
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const struct device *behavior;
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struct zmk_behavior_binding_event event = {
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.layer = layer,
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.position = position,
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.timestamp = timestamp,
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};
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LOG_DBG("layer: %d position: %d, binding name: %s", layer, position,
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log_strdup(binding->behavior_dev));
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behavior = device_get_binding(binding->behavior_dev);
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if (!behavior) {
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LOG_DBG("No behavior assigned to %d on layer %d", position, layer);
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return 1;
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}
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if (pressed) {
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return behavior_keymap_binding_pressed(binding, event);
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} else {
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return behavior_keymap_binding_released(binding, event);
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}
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}
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int zmk_keymap_position_state_changed(uint32_t position, bool pressed, int64_t timestamp) {
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if (pressed) {
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zmk_keymap_active_behavior_layer[position] = _zmk_keymap_layer_state;
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}
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for (int layer = ZMK_KEYMAP_LAYERS_LEN - 1; layer >= _zmk_keymap_layer_default; layer--) {
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if (is_active_layer(layer, zmk_keymap_active_behavior_layer[position])) {
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int ret = zmk_keymap_apply_position_state(layer, position, pressed, timestamp);
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if (ret > 0) {
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LOG_DBG("behavior processing to continue to next layer");
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continue;
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} else if (ret < 0) {
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LOG_DBG("Behavior returned error: %d", ret);
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return ret;
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} else {
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return ret;
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}
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}
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}
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return -ENOTSUP;
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}
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#if ZMK_KEYMAP_HAS_SENSORS
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int zmk_keymap_sensor_triggered(uint8_t sensor_number, const struct device *sensor,
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int64_t timestamp) {
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for (int layer = ZMK_KEYMAP_LAYERS_LEN - 1; layer >= _zmk_keymap_layer_default; layer--) {
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if (((_zmk_keymap_layer_state & BIT(layer)) == BIT(layer) ||
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layer == _zmk_keymap_layer_default) &&
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zmk_sensor_keymap[layer] != NULL) {
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struct zmk_behavior_binding *binding = &zmk_sensor_keymap[layer][sensor_number];
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const struct device *behavior;
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int ret;
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LOG_DBG("layer: %d sensor_number: %d, binding name: %s", layer, sensor_number,
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log_strdup(binding->behavior_dev));
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behavior = device_get_binding(binding->behavior_dev);
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if (!behavior) {
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LOG_DBG("No behavior assigned to %d on layer %d", sensor_number, layer);
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continue;
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}
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ret = behavior_sensor_keymap_binding_triggered(binding, sensor, timestamp);
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if (ret > 0) {
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LOG_DBG("behavior processing to continue to next layer");
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continue;
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} else if (ret < 0) {
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LOG_DBG("Behavior returned error: %d", ret);
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return ret;
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} else {
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return ret;
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}
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}
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}
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return -ENOTSUP;
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}
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#endif /* ZMK_KEYMAP_HAS_SENSORS */
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int keymap_listener(const struct zmk_event_header *eh) {
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if (is_position_state_changed(eh)) {
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const struct position_state_changed *ev = cast_position_state_changed(eh);
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return zmk_keymap_position_state_changed(ev->position, ev->state, ev->timestamp);
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#if ZMK_KEYMAP_HAS_SENSORS
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} else if (is_sensor_event(eh)) {
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const struct sensor_event *ev = cast_sensor_event(eh);
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return zmk_keymap_sensor_triggered(ev->sensor_number, ev->sensor, ev->timestamp);
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#endif /* ZMK_KEYMAP_HAS_SENSORS */
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}
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return -ENOTSUP;
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}
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ZMK_LISTENER(keymap, keymap_listener);
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ZMK_SUBSCRIPTION(keymap, position_state_changed);
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#if ZMK_KEYMAP_HAS_SENSORS
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ZMK_SUBSCRIPTION(keymap, sensor_event);
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#endif /* ZMK_KEYMAP_HAS_SENSORS */
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