92 lines
4.2 KiB
C
92 lines
4.2 KiB
C
/*
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* MIT License
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*
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* Copyright (c) 2020 Joey Castillo
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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/// @file watch.h
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#pragma once
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#include <stdint.h>
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#include <stdbool.h>
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#include "pins.h"
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#define SWCLK GPIO(GPIO_PORTA, 30)
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#define SWDIO GPIO(GPIO_PORTA, 31)
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#ifdef __EMSCRIPTEN__
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#include "watch_main_loop.h"
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#endif // __EMSCRIPTEN__
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/** @mainpage Sensor Watch Documentation
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* @brief This documentation covers most of the functions you will use to interact with the Sensor Watch
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hardware. It is divided into the following sections:
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- @ref rtc - This section covers functions related to the SAM L22's real-time clock peripheral, including
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date, time and alarm functions.
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- @ref slcd - This section covers functions related to the Segment LCD display driver, which is responsible
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for displaying strings of characters and indicators on the main watch display.
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- @ref buttons - This section covers functions related to the three buttons: Light, Mode and Alarm.
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- @ref tcc - This section covers functions related to the LED and piezo buzzer, which are controlled by the
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SAM L22's Timer Counter for Control, or TCC peripheral.
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- @ref adc - This section covers functions related to the SAM L22's analog-to-digital converter, as well as
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configuring and reading values from the five analog-capable pins on the 9-pin connector.
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- @ref gpio - This section covers functions related to general-purpose input and output signals.
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- @ref i2c - This section covers functions related to the SAM L22's built-I2C driver, including configuring
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the I2C bus, putting values directly on the bus and reading data from registers on I2C devices.
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- @ref spi - This section covers functions related to the SAM L22's built-in SPI driver.
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- @ref uart - This section covers functions related to the UART peripheral.
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- @ref deepsleep - This section covers functions related to preparing for and entering BACKUP mode, the
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deepest sleep mode available on the SAM L22.
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*/
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/** @brief Typedef for a general-purpose callback function.
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*/
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typedef void (*watch_cb_t)(void);
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#include "watch_rtc.h"
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#include "watch_slcd.h"
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#include "watch_extint.h"
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#include "watch_tcc.h"
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#include "watch_adc.h"
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#include "watch_gpio.h"
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// #include "watch_i2c.h"
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// #include "watch_spi.h"
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// #include "watch_uart.h"
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#include "watch_storage.h"
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#include "watch_deepsleep.h"
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/** @brief Interrupt handler for the SYSTEM interrupt, which handles MCLK,
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* OSC32KCTRL, OSCCTRL, PAC, PM and SUPC.
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* @details We use this to detect when the system voltage has dipped below
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* 2.6V, which means it's time to disable the voltage regulator's
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* high-efficiency mode, which only works down to 2.5V.
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*/
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void irq_handler_system(void);
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/** @brief Resets in the UF2 bootloader mode
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*/
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void watch_reset_to_bootloader(void);
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/** @brief Disables the TRNG twice in order to work around silicon erratum 1.16.1.
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* FIXME: find a better place for this, a couple of watch faces need it.
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*/
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void watch_disable_TRNG(void);
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