refactor(sensors): Split data handling from triggers.

* All sensor behaviors should see sensor data, then selectively
  only have some trigger their behaviors.

app/include/drivers/behavior.h

@@ -23,9 +23,17 @@
  * (Internal use only.)
  */
 
+enum behavior_sensor_binding_process_mode {
+    BEHAVIOR_SENSOR_BINDING_PROCESS_MODE_TRIGGER,
+    BEHAVIOR_SENSOR_BINDING_PROCESS_MODE_DISCARD,
+};
+
 typedef int (*behavior_keymap_binding_callback_t)(struct zmk_behavior_binding *binding,
                                                   struct zmk_behavior_binding_event event);
-typedef int (*behavior_sensor_keymap_binding_callback_t)(
+typedef int (*behavior_sensor_keymap_binding_process_callback_t)(
+    struct zmk_behavior_binding *binding, struct zmk_behavior_binding_event event,
+    enum behavior_sensor_binding_process_mode mode);
+typedef int (*behavior_sensor_keymap_binding_data_callback_t)(
     struct zmk_behavior_binding *binding, struct zmk_behavior_binding_event event,
     const struct zmk_sensor_config *sensor_config, size_t channel_data_size,
     const struct zmk_sensor_channel_data channel_data[channel_data_size]);
@@ -41,7 +49,8 @@ __subsystem struct behavior_driver_api {
     behavior_keymap_binding_callback_t binding_convert_central_state_dependent_params;
     behavior_keymap_binding_callback_t binding_pressed;
     behavior_keymap_binding_callback_t binding_released;
-    behavior_sensor_keymap_binding_callback_t sensor_binding_triggered;
+    behavior_sensor_keymap_binding_data_callback_t sensor_binding_data;
+    behavior_sensor_keymap_binding_process_callback_t sensor_binding_process;
 };
 /**
  * @endcond
@@ -151,7 +160,7 @@ static inline int z_impl_behavior_keymap_binding_released(struct zmk_behavior_bi
 }
 
 /**
- * @brief Handle the a sensor keymap binding being triggered
+ * @brief Handle the a sensor keymap binding processing any incoming data from the sensor
  * @param binding Sensor keymap binding which was triggered.
  * @param sensor Pointer to the sensor device structure for the sensor driver instance.
  * @param virtual_key_position ZMK_KEYMAP_LEN + sensor number
@@ -160,12 +169,12 @@ static inline int z_impl_behavior_keymap_binding_released(struct zmk_behavior_bi
  * @retval 0 If successful.
  * @retval Negative errno code if failure.
  */
-__syscall int behavior_sensor_keymap_binding_triggered(
+__syscall int behavior_sensor_keymap_binding_data(
     struct zmk_behavior_binding *binding, struct zmk_behavior_binding_event event,
     const struct zmk_sensor_config *sensor_config, size_t channel_data_size,
     const struct zmk_sensor_channel_data *channel_data);
 
-static inline int z_impl_behavior_sensor_keymap_binding_triggered(
+static inline int z_impl_behavior_sensor_keymap_binding_data(
     struct zmk_behavior_binding *binding, struct zmk_behavior_binding_event event,
     const struct zmk_sensor_config *sensor_config, size_t channel_data_size,
     const struct zmk_sensor_channel_data *channel_data) {
@@ -177,12 +186,46 @@ static inline int z_impl_behavior_sensor_keymap_binding_triggered(
 
     const struct behavior_driver_api *api = (const struct behavior_driver_api *)dev->api;
 
-    if (api->sensor_binding_triggered == NULL) {
+    if (api->sensor_binding_data == NULL) {
         return -ENOTSUP;
     }
 
-    return api->sensor_binding_triggered(binding, event, sensor_config, channel_data_size,
+    return api->sensor_binding_data(binding, event, sensor_config, channel_data_size, channel_data);
-                                         channel_data);
+}
+
+/**
+ * @brief Handle the keymap sensor binding being triggered after updating any local data
+ * @param dev Pointer to the device structure for the driver instance.
+ * @param param1 User parameter specified at time of behavior binding.
+ * @param param2 User parameter specified at time of behavior binding.
+ *
+ * @retval 0 If successful.
+ * @retval Negative errno code if failure.
+ */
+// clang-format off
+__syscall int behavior_sensor_keymap_binding_process(
+    struct zmk_behavior_binding *binding,
+    struct zmk_behavior_binding_event event,
+    enum behavior_sensor_binding_process_mode mode);
+// clang-format on
+
+static inline int
+z_impl_behavior_sensor_keymap_binding_process(struct zmk_behavior_binding *binding,
+                                              struct zmk_behavior_binding_event event,
+                                              enum behavior_sensor_binding_process_mode mode) {
+    const struct device *dev = device_get_binding(binding->behavior_dev);
+
+    if (dev == NULL) {
+        return -EINVAL;
+    }
+
+    const struct behavior_driver_api *api = (const struct behavior_driver_api *)dev->api;
+
+    if (api->sensor_binding_process == NULL) {
+        return -ENOTSUP;
+    }
+
+    return api->sensor_binding_process(binding, event, mode);
 }
 
 /**

app/src/behaviors/behavior_sensor_rotate.c

@@ -13,7 +13,8 @@
 #include "behavior_sensor_rotate_common.h"
 
 static const struct behavior_driver_api behavior_sensor_rotate_driver_api = {
-    .sensor_binding_triggered = zmk_behavior_sensor_rotate_common_trigger};
+    .sensor_binding_data = zmk_behavior_sensor_rotate_common_data,
+    .sensor_binding_process = zmk_behavior_sensor_rotate_common_process};
 
 static int behavior_sensor_rotate_init(const struct device *dev) { return 0; };
 

app/src/behaviors/behavior_sensor_rotate_common.c

@@ -11,13 +11,12 @@
 
 LOG_MODULE_DECLARE(zmk, CONFIG_ZMK_LOG_LEVEL);
 
-int zmk_behavior_sensor_rotate_common_trigger(struct zmk_behavior_binding *binding,
+int zmk_behavior_sensor_rotate_common_data(struct zmk_behavior_binding *binding,
                                            struct zmk_behavior_binding_event event,
                                            const struct zmk_sensor_config *sensor_config,
                                            size_t channel_data_size,
                                            const struct zmk_sensor_channel_data *channel_data) {
     const struct device *dev = device_get_binding(binding->behavior_dev);
-    const struct behavior_sensor_rotate_config *cfg = dev->config;
     struct behavior_sensor_rotate_data *data = dev->data;
 
     const struct sensor_value value = channel_data[0].value;
@@ -52,6 +51,26 @@ int zmk_behavior_sensor_rotate_common_trigger(struct zmk_behavior_binding *bindi
         value.val1, value.val2, data->remainder[sensor_position].val1,
         data->remainder[sensor_position].val2, triggers, binding->param1, binding->param2);
 
+    data->triggers[sensor_position] = triggers;
+    return 0;
+}
+
+int zmk_behavior_sensor_rotate_common_process(struct zmk_behavior_binding *binding,
+                                              struct zmk_behavior_binding_event event,
+                                              enum behavior_sensor_binding_process_mode mode) {
+    const struct device *dev = device_get_binding(binding->behavior_dev);
+    const struct behavior_sensor_rotate_config *cfg = dev->config;
+    struct behavior_sensor_rotate_data *data = dev->data;
+
+    const int sensor_position = ZMK_SENSOR_POSITION_FROM_VIRTUAL_KEY_POSITION(event.position);
+
+    if (mode != BEHAVIOR_SENSOR_BINDING_PROCESS_MODE_TRIGGER) {
+        data->triggers[sensor_position] = 0;
+        return 0;
+    }
+
+    int triggers = data->triggers[sensor_position];
+
     struct zmk_behavior_binding triggered_binding;
     if (triggers > 0) {
         triggered_binding = cfg->cw_binding;

app/src/behaviors/behavior_sensor_rotate_common.h

@@ -4,6 +4,7 @@
  * SPDX-License-Identifier: MIT
  */
 
+#include <drivers/behavior.h>
 #include <zmk/behavior.h>
 #include <zmk/sensors.h>
 
@@ -16,10 +17,14 @@ struct behavior_sensor_rotate_config {
 
 struct behavior_sensor_rotate_data {
     struct sensor_value remainder[ZMK_KEYMAP_SENSORS_LEN];
+    int triggers[ZMK_KEYMAP_SENSORS_LEN];
 };
 
-int zmk_behavior_sensor_rotate_common_trigger(struct zmk_behavior_binding *binding,
+int zmk_behavior_sensor_rotate_common_data(struct zmk_behavior_binding *binding,
                                            struct zmk_behavior_binding_event event,
                                            const struct zmk_sensor_config *sensor_config,
                                            size_t channel_data_size,
                                            const struct zmk_sensor_channel_data *channel_data);
+int zmk_behavior_sensor_rotate_common_process(struct zmk_behavior_binding *binding,
+                                              struct zmk_behavior_binding_event event,
+                                              enum behavior_sensor_binding_process_mode mode);

app/src/behaviors/behavior_sensor_rotate_var.c

@@ -13,7 +13,8 @@
 #include "behavior_sensor_rotate_common.h"
 
 static const struct behavior_driver_api behavior_sensor_rotate_var_driver_api = {
-    .sensor_binding_triggered = zmk_behavior_sensor_rotate_common_trigger};
+    .sensor_binding_data = zmk_behavior_sensor_rotate_common_data,
+    .sensor_binding_process = zmk_behavior_sensor_rotate_common_process};
 
 static int behavior_sensor_rotate_var_init(const struct device *dev) { return 0; };
 

app/src/keymap.c

@@ -252,11 +252,12 @@ int zmk_keymap_position_state_changed(uint8_t source, uint32_t position, bool pr
 }
 
 #if ZMK_KEYMAP_HAS_SENSORS
-int zmk_keymap_sensor_triggered(
+int zmk_keymap_sensor_event(uint8_t sensor_position, size_t channel_data_size,
-    uint8_t sensor_position, size_t channel_data_size,
+                            const struct zmk_sensor_channel_data channel_data[channel_data_size],
-    const struct zmk_sensor_channel_data channel_data[channel_data_size], int64_t timestamp) {
+                            int64_t timestamp) {
-    for (int layer = ZMK_KEYMAP_LAYERS_LEN - 1; layer >= _zmk_keymap_layer_default; layer--) {
+    bool opaque_response = false;
-        if (zmk_keymap_layer_active(layer)) {
+
+    for (int layer = ZMK_KEYMAP_LAYERS_LEN - 1; layer >= 0; layer--) {
         struct zmk_behavior_binding *binding = &zmk_sensor_keymap[layer][sensor_position];
         const struct device *behavior;
         int ret;
@@ -277,23 +278,33 @@ int zmk_keymap_sensor_triggered(
             .timestamp = timestamp,
         };
 
-            ret = behavior_sensor_keymap_binding_triggered(
+        ret = behavior_sensor_keymap_binding_data(
-                binding, event, zmk_sensors_get_config_at_position(sensor_position),
+            binding, event, zmk_sensors_get_config_at_position(sensor_position), channel_data_size,
-                channel_data_size, channel_data);
+            channel_data);
 
         if (ret > 0) {
             LOG_DBG("behavior processing to continue to next layer");
             continue;
+        }
+
+        enum behavior_sensor_binding_process_mode mode =
+            (!opaque_response && layer >= _zmk_keymap_layer_default &&
+             zmk_keymap_layer_active(layer))
+                ? BEHAVIOR_SENSOR_BINDING_PROCESS_MODE_TRIGGER
+                : BEHAVIOR_SENSOR_BINDING_PROCESS_MODE_DISCARD;
+
+        ret = behavior_sensor_keymap_binding_process(binding, event, mode);
+
+        if (ret == ZMK_BEHAVIOR_OPAQUE) {
+            LOG_DBG("sensor event processing complete, behavior response was opaque");
+            opaque_response = true;
         } else if (ret < 0) {
             LOG_DBG("Behavior returned error: %d", ret);
             return ret;
-            } else {
-                return ret;
-            }
         }
     }
 
-    return -ENOTSUP;
+    return 0;
 }
 
 #endif /* ZMK_KEYMAP_HAS_SENSORS */
@@ -308,7 +319,7 @@ int keymap_listener(const zmk_event_t *eh) {
 #if ZMK_KEYMAP_HAS_SENSORS
     const struct zmk_sensor_event *sensor_ev;
     if ((sensor_ev = as_zmk_sensor_event(eh)) != NULL) {
-        return zmk_keymap_sensor_triggered(sensor_ev->sensor_position, sensor_ev->channel_data_size,
+        return zmk_keymap_sensor_event(sensor_ev->sensor_position, sensor_ev->channel_data_size,
                                        sensor_ev->channel_data, sensor_ev->timestamp);
     }
 #endif /* ZMK_KEYMAP_HAS_SENSORS */