From 4e4faca67015df3a3e1bf1b9937265f465c5093d Mon Sep 17 00:00:00 2001
From: Pete Johanson <peter@peterjohanson.com>
Date: Sun, 20 Dec 2020 09:49:42 -0500
Subject: feature(split): behavior locality support.

* GATT characteristic allowing passng data + behavior
  label to invoke the behavior on the peripheral side.
* Behaviors have a locality setting to specify where they run.
* Build reset/power/RGB on peripheral.
---
 app/include/drivers/behavior.h | 46 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)

(limited to 'app/include/drivers/behavior.h')

diff --git a/app/include/drivers/behavior.h b/app/include/drivers/behavior.h
index 2bdffea..fcb24f6 100644
--- a/app/include/drivers/behavior.h
+++ b/app/include/drivers/behavior.h
@@ -8,6 +8,8 @@
 
 #include <zephyr/types.h>
 #include <stddef.h>
+#include <sys/util.h>
+#include <string.h>
 #include <device.h>
 #include <zmk/keys.h>
 #include <zmk/behavior.h>
@@ -26,7 +28,14 @@ typedef int (*behavior_sensor_keymap_binding_callback_t)(struct zmk_behavior_bin
                                                          const struct device *sensor,
                                                          int64_t timestamp);
 
+enum behavior_locality {
+    BEHAVIOR_LOCALITY_CENTRAL,
+    BEHAVIOR_LOCALITY_EVENT_SOURCE,
+    BEHAVIOR_LOCALITY_GLOBAL
+};
+
 __subsystem struct behavior_driver_api {
+    enum behavior_locality locality;
     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;
@@ -60,6 +69,28 @@ static inline int z_impl_behavior_keymap_binding_convert_central_state_dependent
     return api->binding_convert_central_state_dependent_params(binding, event);
 }
 
+/**
+ * @brief Determine where the behavior should be run
+ * @param behavior Pointer to the device structure for the driver instance.
+ *
+ * @retval Zero if successful.
+ * @retval Negative errno code if failure.
+ */
+__syscall int behavior_get_locality(const struct device *behavior,
+                                    enum behavior_locality *locality);
+
+static inline int z_impl_behavior_get_locality(const struct device *behavior,
+                                               enum behavior_locality *locality) {
+    if (behavior == NULL) {
+        return -EINVAL;
+    }
+
+    const struct behavior_driver_api *api = (const struct behavior_driver_api *)behavior->api;
+    *locality = api->locality;
+
+    return 0;
+}
+
 /**
  * @brief Handle the keymap binding being pressed
  * @param dev Pointer to the device structure for the driver instance.
@@ -75,6 +106,11 @@ __syscall int behavior_keymap_binding_pressed(struct zmk_behavior_binding *bindi
 static inline int z_impl_behavior_keymap_binding_pressed(struct zmk_behavior_binding *binding,
                                                          struct zmk_behavior_binding_event event) {
     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->binding_pressed == NULL) {
@@ -98,6 +134,11 @@ __syscall int behavior_keymap_binding_released(struct zmk_behavior_binding *bind
 static inline int z_impl_behavior_keymap_binding_released(struct zmk_behavior_binding *binding,
                                                           struct zmk_behavior_binding_event event) {
     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->binding_released == NULL) {
@@ -125,6 +166,11 @@ static inline int
 z_impl_behavior_sensor_keymap_binding_triggered(struct zmk_behavior_binding *binding,
                                                 const struct device *sensor, int64_t timestamp) {
     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_triggered == NULL) {
-- 
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