Some initial work on behavior bindings for keymaps

app/src/behaviors/behavior_key_press.c

@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2020 Peter Johanson <peter@peterjohanson.com>
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#define DT_DRV_COMPAT zmk_behavior_key_press
+
+#include <device.h>
+#include <drivers/behavior.h>
+#include <logging/log.h>
+
+LOG_MODULE_DECLARE(zmk, CONFIG_ZMK_LOG_LEVEL);
+
+struct behavior_key_press_config { };
+struct behavior_key_press_data { };
+
+static int behavior_key_press_init(struct device *dev)
+{
+	return 0;
+};
+
+
+// They keycode is passed by the "keymap" based on the parameter created as part of the assignment.
+// Other drivers instead might activate a layer, update the consumer page state, or update the RGB state, etc.
+// Returns:
+//  * > 0 -  indicate successful processing, and halt further handling,
+//  * 0 - Indicate successful processing, and continue propagation.
+//  * < 0 - Indicate error processing, report and halt further propagation.
+static int on_position_pressed(struct device *dev, u32_t keycode, u32_t _)
+{
+  // Invoking this triggers a *new* event, that can be linked to other behaviours.
+  //return zmk_key_state_press(u32_t keycode);
+  return 0;
+}
+
+
+// They keycode is passed by the "keymap" based on the parameter created as part of the assignment.
+static int on_position_released(struct device *dev, u32_t keycode, u32_t _)
+{
+  // Invoking this triggers a *new* event, that can will be handled by other behaviors
+  // This is the "command" piece. Which could be better/richer, but captures essence here.
+  // return zmk_key_state_release(u32_t keycode);
+  return 0;
+}
+
+static const struct behavior_driver_api behavior_key_press_driver_api = {
+  // These callbacks are all optional, and define which kinds of events the behavior can handle.
+  // They can reference local functions defined here, or shared event handlers.
+  .position_pressed = on_position_pressed,
+  .position_released = on_position_released
+  // Other optional callbacks a behavior can implement
+  // .on_mouse_moved
+  // .on_sensor_data - Any behaviour that wants to be linked to a censor can implement this behavior
+};
+
+
+static const struct behavior_key_press_config behavior_key_press_config = {};
+
+static struct behavior_key_press_data behavior_key_press_data;
+
+DEVICE_AND_API_INIT(behavior_key_press, DT_INST_LABEL(0), behavior_key_press_init,
+                    &behavior_key_press_data,
+                    &behavior_key_press_config,
+                    APPLICATION, CONFIG_KERNEL_INIT_PRIORITY_DEFAULT,
+                    &behavior_key_press_driver_api);

app/src/behaviors/behavior_reset.c

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+/*
+ * Copyright (c) 2020 Peter Johanson <peter@peterjohanson.com>
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#define DT_DRV_COMPAT zmk_behavior_reset
+
+#include <device.h>
+#include <power/reboot.h>
+#include <drivers/behavior.h>
+#include <logging/log.h>
+
+LOG_MODULE_DECLARE(zmk, CONFIG_ZMK_LOG_LEVEL);
+
+struct behavior_reset_config { };
+struct behavior_reset_data { };
+
+static int behavior_reset_init(struct device *dev)
+{
+	return 0;
+};
+
+static int on_position_pressed(struct device *dev, u32_t _param1, u32_t _param2)
+{
+  // TODO: Correct magic code for going into DFU?
+  // See https://github.com/adafruit/Adafruit_nRF52_Bootloader/blob/d6b28e66053eea467166f44875e3c7ec741cb471/src/main.c#L107
+  sys_reboot(0);
+  return 0;
+}
+
+static int on_position_released(struct device *dev, u32_t _param1, u32_t _param2)
+{
+  return 0;
+}
+
+static const struct behavior_driver_api behavior_reset_driver_api = {
+  .position_pressed = on_position_pressed,
+  .position_released = on_position_released
+};
+
+
+static const struct behavior_reset_config behavior_reset_config = {};
+
+static struct behavior_reset_data behavior_reset_data;
+
+DEVICE_AND_API_INIT(behavior_reset, DT_INST_LABEL(0), behavior_reset_init,
+                    &behavior_reset_data,
+                    &behavior_reset_config,
+                    APPLICATION, CONFIG_KERNEL_INIT_PRIORITY_DEFAULT,
+                    &behavior_reset_driver_api);