Sensor Watch Simulator (#35)

* Put something on screen

* Use the 32bit watch_date_time repr to pass from JS

* Implement periodic callbacks

* Clear display on enabling

* Hook up watch_set_led_color() to SVG (green-only)

* Make debug output full-width

* Remove default Emscripten canvas

* Implement sleep and button clicks

* Fix time zone conversion bug in beats-time app

* Clean up warnings

* Fix pin levels

* Set time zone to browser value (if available)

* Add basic backup data saving

* Silence format specifier warnings in both targets

* Remove unnecessary, copied files

* Use RTC pointer to clear callbacks (if available)

* Use preprocessor define to avoid hardcoding MOVEMENT_NUM_FACES

* Change each face to const preprocessor definition

* Remove Intl.DateTimeFormat usage

* Update shell.html title, header

* Add touch start/end event handlers on SVG buttons

* Update shell.html

* Update folder structure (shared, simulator, hardware under watch-library)

* Tease out shared components from watch_slcd

* Clean up simulator watch_slcd.c inline JS calls

* Fix missing newlines at end of file

* Add simulator warnings (except format, unused-paremter)

* Implement remaining watch_rtc functions

* Fix button bug on mouse down then drag out

* Implement remaining watch_slcd functions

* Link keyboard events to buttons (for keys A, L, M)

* Rewrite event handling (mouse, touch, keyboard) in C

* Set explicit text UTF-8 charset in shell.html

* Address PR comments

* Remove unused directories from include paths

1 files changed, 93 insertions, 0 deletions

diff --git a/watch-library/shared/watch/watch_led.h b/watch-library/shared/watch/watch_led.h
new file mode 100644
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--- /dev/null
+++ b/watch-library/shared/watch/watch_led.h
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+/*
+ * MIT License
+ *
+ * Copyright (c) 2020 Joey Castillo
+ *
+ * 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 _WATCH_LED_H_INCLUDED
+#define _WATCH_LED_H_INCLUDED
+////< @file watch_led.h
+
+#include "watch.h"
+
+/** @addtogroup led LED Control
+  * @brief This section covers functions related to the bi-color red/green LED mounted behind the LCD.
+  * @details The SAM L22 is an exceedingly power efficient chip, whereas the LED's are relatively power-
+  *          hungry. The green LED, at full power, consumes more power than the whole chip in active mode,
+  *          and the red LED consumes about twelve times as much power! The LED's should thus be used only
+  *          sparingly in order to preserve battery life.
+  * @note Some watches use a red/blue LED instead of a red/green LED. You will be able to determine this
+  *       easily when you double tap the reset button: if the pulsing bootloader LED is red, you have a
+  *       red/green edition; if it is blue, you have a red/blue edition. For red/blue watches, build your
+  *       project with the command `make LED=BLUE`, and the watch library will automatically swap the pins
+  *       so that watch_set_led_red sets the red LED, and watch_set_led_green sets the blue one.
+  */
+/// @{
+/** @brief Enables the bi-color LED.
+  * @note The TCC peripheral that drives the LEDs does not run in STANDBY mode — but the outputs do! This
+  *       means that if you set either red, green or both LEDs to full power, they will shine even when
+  *       your app is asleep. If, however, you set a custom color using watch_set_led_color, the color will
+  *       not display correctly in STANDBY mode. You will need to keep your app running while the LED is on.
+  */
+void watch_enable_leds(void);
+
+/** @brief Disables the LEDs.
+  * @note This method will also disable the buzzer, since the buzzer and LED both make use of the same
+  *       peripheral to drive their PWM behavior.
+  */
+void watch_disable_leds(void);
+
+/** @brief Sets the LED to a custom color by modulating each output's duty cycle.
+  * @param red The red value from 0-255.
+  * @param green The green value from 0-255. If your watch has a red/blue LED, this will be the blue value.
+  * @note If you are displaying a custom color, you will need to prevent your app from going to sleep
+  *       while the LED is on; otherwise, the color will not display correctly. You can do this by
+  *       returning false in your app_loop method.
+  */
+void watch_set_led_color(uint8_t red, uint8_t green);
+
+/** @brief Sets the red LED to full brightness, and turns the green LED off.
+  * @details Of the two LED's in the RG bi-color LED, the red LED is the less power-efficient one (~4.5 mA).
+  */
+void watch_set_led_red(void);
+
+/** @brief Sets the green LED to full brightness, and turns the red LED off.
+  * @details Of the two LED's in the RG bi-color LED, the green LED is the more power-efficient one (~0.44 mA).
+  * @note If your watch has a red/blue LED, this method will set the LED to blue.
+  */
+void watch_set_led_green(void);
+
+/** @brief Sets both red and green LEDs to full brightness.
+  * @details The total current draw between the two LED's in this mode will be ~5 mA, which is more than the
+  *          watch draws in any other mode. Take care not to drain the battery.
+  * @note If your watch has a red/blue LED, this method will set the LED to pink.
+  */
+void watch_set_led_yellow(void);
+
+/** @brief Turns both the red and the green LEDs off. */
+void watch_set_led_off(void);
+
+__attribute__((deprecated("Use watch_enable_leds instead")))
+void watch_enable_led(bool unused);
+
+__attribute__((deprecated("Use watch_disable_leds instead")))
+void watch_disable_led(bool unused);
+/// @}
+#endif