Add stock stopwatch face (#140)

* buzzer sequences: first draft, does not work on hardware yet (but in simulator)

* buzzer sequences: add changes to movement.c

* buzzer sequences: add demo face to Makefile

* buzzer sequences: fix problem of interrupted sounds. Add logic for repeating sub sequences. Tidy up (move logic to watch_buzzer files, remove buzzer_demo_face)

* buzzer sequences: tidy up even more

* buzzer sequences: disable registering a 32 Hz tick callback for watch faces, so it will be used exclusively by the buzzer sequences functionality

* buzzer sequences: add callback slot functionality to watch_rtc and make watch_buzzer use it. Switch internal buzzer sequences tick frequency to 64 Hz. Revert changes to movement.c

* buzzer sequences: fix parameter sanity check in watch_rtc code

* stock stopwatch: first fully functional implementation

* stock stopwatch: fix typo in comment

* stock stopwatch: handle resuming from deep sleep mode properly

* buzzer sequences/watch_rtc: optimize calling tick callbacks in RTC_Handler

* buzzer sequences/watch_rtc: fix error in calling callback functions

* stock stopwatch: implement workaround for sleep mode

* stock stopwatch: merge current main into stock-stopwatch

* stock stopwatch: use TC counters as source for callbacks

* stock-stopwatch: revert unnecessary changes to watch_buzzer

Co-authored-by: joeycastillo <joeycastillo@utexas.edu>

1 files changed, 58 insertions, 0 deletions

diff --git a/movement/watch_faces/complication/stock_stopwatch_face.h b/movement/watch_faces/complication/stock_stopwatch_face.h
new file mode 100644
index 00000000..d8880df7
--- /dev/null
+++ b/movement/watch_faces/complication/stock_stopwatch_face.h
@@ -0,0 +1,58 @@
+/*
+ * MIT License
+ *
+ * Copyright (c) 2022 Andreas Nebinger
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef STOCK_STOPWATCH_FACE_H_
+#define STOCK_STOPWATCH_FACE_H_
+
+#include "movement.h"
+
+// This watch face relies heavily on static vars in stock_stopwatch.c.
+// The disadvantage is that you cannot use more than one instance of this watch face on
+// your custom firmware - but then again, who would want that? The advantage is that accessing
+// vars is more direct and faster, and we can save some precious cpu cycles  :-) 
+
+typedef struct {
+    bool light_on_button;   // determines whether the light button actually triggers the led
+} stock_stopwatch_state_t;
+
+void stock_stopwatch_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr);
+void stock_stopwatch_face_activate(movement_settings_t *settings, void *context);
+bool stock_stopwatch_face_loop(movement_event_t event, movement_settings_t *settings, void *context);
+void stock_stopwatch_face_resign(movement_settings_t *settings, void *context);
+
+#if __EMSCRIPTEN__
+void em_cb_handler(void *userData);
+#else
+void TC2_Handler(void);
+#endif
+
+#define stock_stopwatch_face ((const watch_face_t){ \
+    stock_stopwatch_face_setup, \
+    stock_stopwatch_face_activate, \
+    stock_stopwatch_face_loop, \
+    stock_stopwatch_face_resign, \
+    NULL, \
+})
+
+#endif // STOCK_STOPWATCH_FACE_H_