1011 lines
40 KiB
C
1011 lines
40 KiB
C
/** dachboden klo-assistant firmware
|
|
* @file
|
|
* @author King Kévin <kingkevin@cuvoodoo.info>
|
|
* @copyright SPDX-License-Identifier: GPL-3.0-or-later
|
|
* @date 2016-2021
|
|
*/
|
|
|
|
/* standard libraries */
|
|
#include <stdint.h> // standard integer types
|
|
#include <stdlib.h> // standard utilities
|
|
#include <string.h> // string utilities
|
|
#include <time.h> // date/time utilities
|
|
#include <ctype.h> // utilities to check chars
|
|
|
|
/* STM32 (including CM3) libraries */
|
|
#include <libopencmsis/core_cm3.h> // Cortex M3 utilities
|
|
#include <libopencm3/cm3/scb.h> // vector table definition
|
|
#include <libopencm3/cm3/nvic.h> // interrupt utilities
|
|
#include <libopencm3/stm32/gpio.h> // general purpose input output library
|
|
#include <libopencm3/stm32/rcc.h> // real-time control clock library
|
|
#include <libopencm3/stm32/exti.h> // external interrupt utilities
|
|
#include <libopencm3/stm32/rtc.h> // real time clock utilities
|
|
#include <libopencm3/stm32/iwdg.h> // independent watchdog utilities
|
|
#include <libopencm3/stm32/dbgmcu.h> // debug utilities
|
|
#include <libopencm3/stm32/desig.h> // design utilities
|
|
#include <libopencm3/stm32/flash.h> // flash utilities
|
|
#include <libopencm3/stm32/usart.h> // USART utilities for MP3 player
|
|
#include <libopencm3/stm32/adc.h> // ADC utilities for random seed
|
|
|
|
/* own libraries */
|
|
#include "global.h" // board definitions
|
|
#include "print.h" // printing utilities
|
|
#if !defined(STLINKV2)
|
|
#include "uart.h" // USART utilities
|
|
#endif
|
|
#include "usb_cdcacm.h" // USB CDC ACM utilities
|
|
#include "terminal.h" // handle the terminal interface
|
|
#include "menu.h" // menu utilities
|
|
#include "led_tm1637.h" // TM1637 7-segment display controller
|
|
#include "led_sk6812rgbw.h" // SK6812 RGBW LED controller
|
|
|
|
/** watchdog period in ms */
|
|
#define WATCHDOG_PERIOD 10000
|
|
|
|
/** set to 0 if the RTC is reset when the board is powered on, only indicates the uptime
|
|
* set to 1 if VBAT can keep the RTC running when the board is unpowered, indicating the date and time
|
|
*/
|
|
#define RTC_DATE_TIME 0
|
|
|
|
/** number of RTC ticks per second
|
|
* @note use integer divider of oscillator to keep second precision
|
|
*/
|
|
#define RTC_TICKS_SECOND 16
|
|
|
|
#if defined(RTC_DATE_TIME) && RTC_DATE_TIME
|
|
/** the start time from which to RTC ticks count
|
|
* @note this allows the 32-bit value to reach further in time, particularly when there are several ticks per second
|
|
*/
|
|
const time_t rtc_offset = 1577833200; // We 1. Jan 00:00:00 CET 2020
|
|
#endif
|
|
|
|
/** RTC time when device is started */
|
|
static time_t time_start = 0;
|
|
|
|
/** time when the door has been closed/locked (RTC time) */
|
|
static uint32_t timer_door_closed = 0;
|
|
|
|
/** @defgroup main_flags flag set in interrupts to be processed in main task
|
|
* @{
|
|
*/
|
|
static volatile bool rtc_internal_tick_flag = false; /**< flag set when internal RTC ticked */
|
|
static volatile bool mp3_rx_flag = false; /**< if data has been received from the MP3 player */
|
|
static volatile bool door_flag = false; /**< set when the door lock switch changes */
|
|
/** @} */
|
|
|
|
/** switch in the door to verify if its locked (closed when locked)
|
|
* @note use external pull-up resistor (10k to 5V) since the internal pull up does not cope for the long cable
|
|
*/
|
|
#define DOOR_PIN PB8
|
|
|
|
/** USART port used to communicate with catalex MP3 player */
|
|
#define MP3_UART 2
|
|
/** data received from MP3 player */
|
|
static volatile uint8_t mp3_rx_data[10];
|
|
/** number of byte received from MP3 player */
|
|
static volatile uint8_t mp3_rx_len;
|
|
|
|
/** pin to simulate button press (go high) to switch on/off Bluetooth audio transmitter
|
|
* - 2s press: on/off
|
|
* - 5s press when off: pair
|
|
*/
|
|
#define BTAUDIO_BUTTON_PIN PA0
|
|
/** status output (e.g. LED) of Bluetooth audio transmitter
|
|
* - off: off
|
|
* - fast flash (periodic blink every 0.3s): pairing
|
|
* - slow flash (double blink every 5.3s): unconnected
|
|
* - very slow flash (single blink every 10s): connected
|
|
*/
|
|
#define BTAUDIO_STATUS_PIN PA1
|
|
/** time (in ms) to press on the button to switch Bluetooth audio transmitter */
|
|
#define BTAUDIO_ON 3500
|
|
|
|
/** number of timer led Bluetooth audio transmitter blinked, to determine the status */
|
|
static uint8_t btaudio_status = 0;
|
|
|
|
/** catalex MP3 player commands */
|
|
enum mp3_commands_t {
|
|
MP3_CMD_NEXT_SONG = 0x01,
|
|
MP3_CMD_PREV_SONG = 0x02,
|
|
MP3_CMD_PLAY_W_INDEX = 0x03,
|
|
MP3_CMD_VOLUME_UP = 0x04,
|
|
MP3_CMD_VOLUME_DOWN = 0x05,
|
|
MP3_CMD_SET_VOLUME = 0x06,
|
|
MP3_CMD_SINGLE_CYCLE_PLAY = 0x08,
|
|
MP3_CMD_SEL_DEV = 0x09,
|
|
MP3_CMD_SLEEP_MODE = 0x0A,
|
|
MP3_CMD_WAKE_UP = 0x0B,
|
|
MP3_CMD_RESET = 0x0C,
|
|
MP3_CMD_PLAY = 0x0D,
|
|
MP3_CMD_PAUSE = 0x0E,
|
|
MP3_CMD_PLAY_FOLDER_FILE = 0x0F,
|
|
MP3_CMD_STOP_PLAY = 0x16,
|
|
MP3_CMD_FOLDER_CYCLE = 0x17,
|
|
MP3_CMD_SHUFFLE_PLAY = 0x18,
|
|
MP3_CMD_SET_SINGLE_CYCLE = 0x19,
|
|
MP3_CMD_SET_DAC = 0x1A,
|
|
MP3_CMD_PLAY_W_VOL = 0x22,
|
|
MP3_CMD_QUERY_STATUS = 0x42,
|
|
MP3_CMD_QUERY_FLDR_TRACKS = 0x4e,
|
|
MP3_CMD_QUERY_TOT_TRACKS = 0x48,
|
|
MP3_CMD_QUERY_FLDR_COUNT = 0x4f,
|
|
};
|
|
|
|
/** which song group we are currently playing */
|
|
static enum playing_state_t {
|
|
PLAYING_STATE_OFF, /**< playing any song or track */
|
|
PLAYING_STATE_INTRO, /**< playing the welcome message */
|
|
PLAYING_STATE_SONG, /**< playing any song */
|
|
PLAYING_STATE_TIMER_INTRO, /**< playing the time announcement intro */
|
|
PLAYING_STATE_TIMER_MINUTES, /**< playing the number of minutes */
|
|
PLAYING_STATE_TIMER_MINUTE, /**< playing the minute announcement */
|
|
PLAYING_STATE_TIMER_SECONDS, /**< playing the number of seconds */
|
|
PLAYING_STATE_TIMER_OUTRO, /**< playing the timer announcement closing word */
|
|
PLAYING_STATE_TALK, /**< playing any talk track */
|
|
PLAYING_STATE_EXIT, /**< playing any exit message */
|
|
PLAYING_STATE_TECHNO, /**< continuously play techno songs (use secret open/close sequence to enter modus) */
|
|
PLAYING_STATE_KANGURU, /**< continuously play kanguru sketches (use secret open/close/open/close sequence to enter modus) */
|
|
} playing_state = PLAYING_STATE_OFF; /**< which song group we are currently playing */
|
|
|
|
/** RTC timestamps when the last MP3 response track finished has been received */
|
|
static uint32_t last_finished = 0;
|
|
|
|
/** number of possible welcome tacks */
|
|
#define WELCOME_TRACKS 15
|
|
/** number of possible music tracks */
|
|
#define MUSIC_TRACKS 30
|
|
/** number of possible exit message tracks */
|
|
#define EXIT_TRACKS 19
|
|
/** number of possible talk tracks */
|
|
#define TALK_TRACKS 29
|
|
/** number of possible techno music tracks */
|
|
#define TECHNO_TRACKS 237
|
|
/** number of possible kanguru */
|
|
#define KANGURU_TRACKS 81
|
|
|
|
/** folder number for welcome tracks */
|
|
#define WELCOME_FOLDER 1
|
|
/** folder number for music tracks */
|
|
#define MUSIC_FOLDER 2
|
|
/** folder number for exit messages tracks */
|
|
#define EXIT_FOLDER 4
|
|
/** folder number for talk tracks */
|
|
#define TALK_FOLDER 3
|
|
/** folder number for time number announcement tracks */
|
|
#define TIME_FOLDER 5
|
|
/** folder number for techno music tracks */
|
|
#define TECHNO_FOLDER 6
|
|
/** folder number for kanguru tracks */
|
|
#define KANGURU_FOLDER 7
|
|
|
|
size_t putc(char c)
|
|
{
|
|
size_t length = 0; // number of characters printed
|
|
static char last_c = 0; // to remember on which character we last sent
|
|
if ('\n' == c) { // send carriage return (CR) + line feed (LF) newline for each LF
|
|
if ('\r' != last_c) { // CR has not already been sent
|
|
#if !defined(STLINKV2)
|
|
uart_putchar_nonblocking('\r'); // send CR over USART
|
|
#endif
|
|
usb_cdcacm_putchar('\r'); // send CR over USB
|
|
length++; // remember we printed 1 character
|
|
}
|
|
}
|
|
#if !defined(STLINKV2)
|
|
uart_putchar_nonblocking(c); // send byte over USART
|
|
#endif
|
|
usb_cdcacm_putchar(c); // send byte over USB
|
|
length++; // remember we printed 1 character
|
|
last_c = c; // remember last character
|
|
return length; // return number of characters printed
|
|
}
|
|
|
|
/** display available commands
|
|
* @param[in] argument no argument required
|
|
*/
|
|
static void command_help(void* argument);
|
|
|
|
/** show software and hardware version
|
|
* @param[in] argument no argument required
|
|
*/
|
|
static void command_version(void* argument);
|
|
|
|
/** show uptime
|
|
* @param[in] argument no argument required
|
|
*/
|
|
static void command_uptime(void* argument);
|
|
|
|
#if RTC_DATE_TIME
|
|
/** show date and time
|
|
* @param[in] argument date and time to set
|
|
*/
|
|
static void command_datetime(void* argument);
|
|
#endif
|
|
|
|
/** reset board
|
|
* @param[in] argument no argument required
|
|
*/
|
|
static void command_reset(void* argument);
|
|
|
|
/** switch to DFU bootloader
|
|
* @param[in] argument no argument required
|
|
*/
|
|
static void command_bootloader(void* argument);
|
|
|
|
/** get random track from folder
|
|
* @param[in] folder MP3 SD card folder number
|
|
* @return a track within the folder (0 on invalid folder)
|
|
*/
|
|
static uint16_t track_random(uint8_t folder)
|
|
{
|
|
uint8_t tracks; // number of available tracks in folder
|
|
switch (folder) {
|
|
case WELCOME_FOLDER:
|
|
tracks = WELCOME_TRACKS;
|
|
break;
|
|
case MUSIC_FOLDER:
|
|
tracks = MUSIC_TRACKS;
|
|
break;
|
|
case EXIT_FOLDER:
|
|
tracks = EXIT_TRACKS;
|
|
break;
|
|
case TALK_FOLDER:
|
|
tracks = TALK_TRACKS;
|
|
break;
|
|
case TECHNO_FOLDER:
|
|
tracks = TECHNO_TRACKS;
|
|
break;
|
|
case KANGURU_FOLDER:
|
|
tracks = KANGURU_TRACKS;
|
|
break;
|
|
default: // invalid folder
|
|
return 0;
|
|
}
|
|
|
|
static uint16_t played[10] = {0}; // the last tracks played
|
|
bool track_ok = false; // when we found a valid track number
|
|
uint16_t track_nr; // the track we will play
|
|
while (!track_ok) {
|
|
track_nr = (folder << 8) + (rand() % tracks) + 1; // generate random track number
|
|
track_ok = true;
|
|
for (uint8_t i = 0; i < LENGTH(played); i++) { // go though played list
|
|
if (track_nr == played[i]) { // we already played the track
|
|
track_ok = false; // the track we have is not OK
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
for (uint8_t i = 0; i < LENGTH(played) - 1; i++) { // shift playlist
|
|
played[i + 1] = played[i];
|
|
}
|
|
played[0] = track_nr; // save the track we chose
|
|
return track_nr; // return the random track within folder
|
|
}
|
|
|
|
/** send command to MP3 playes
|
|
* @param[in] cmd command to send
|
|
* @param[in] data argument for command (such as track number)
|
|
*/
|
|
static void mp3_command(enum mp3_commands_t cmd, uint16_t data)
|
|
{
|
|
puts("MP3 command: ");
|
|
switch (cmd) {
|
|
case MP3_CMD_PLAY:
|
|
puts("play");
|
|
break;
|
|
case MP3_CMD_NEXT_SONG:
|
|
puts("next");
|
|
break;
|
|
case MP3_CMD_STOP_PLAY:
|
|
puts("stop");
|
|
break;
|
|
case MP3_CMD_PLAY_FOLDER_FILE:
|
|
puts("playing ");
|
|
const uint8_t folder = data >> 8;
|
|
const uint8_t track = data & 0xff;
|
|
printf("%02u/%03u", folder, track);
|
|
if (0 == folder) {
|
|
puts(" (invalid input folder 0)");
|
|
}
|
|
if (0 == track) {
|
|
puts(" (invalid input track 0");
|
|
}
|
|
break;
|
|
case MP3_CMD_SET_VOLUME:
|
|
printf("set volume to %u", data);
|
|
break;
|
|
case MP3_CMD_RESET:
|
|
puts("reset");
|
|
break;
|
|
default:
|
|
printf("%+02x");
|
|
break;
|
|
}
|
|
putc('\n');
|
|
|
|
uint8_t command[] = {0x7e, 0xff, 0x06, cmd, 0x01, data >> 8, data, 0xef}; // command template (with feedback)
|
|
for (uint8_t i = 0; i < LENGTH(command); i++) {
|
|
usart_send_blocking(USART(MP3_UART), command[i]);
|
|
}
|
|
}
|
|
|
|
/** process response received from MP3 player
|
|
* @return if a valid response has been received
|
|
*/
|
|
static bool mp3_response(void)
|
|
{
|
|
if (mp3_rx_len < 10) { // responses are always at least 10 bytes long
|
|
return false;
|
|
}
|
|
if (0x7e != mp3_rx_data[0]) { // response always starts with 0x7e
|
|
mp3_rx_len = 0; // reset message
|
|
return false;
|
|
}
|
|
if (0xff != mp3_rx_data[1]) { // version is always 0xff
|
|
mp3_rx_len = 0; // reset message
|
|
return false;
|
|
}
|
|
if (mp3_rx_data[2] > LENGTH(mp3_rx_data) - 3) { // message is longer than buffer
|
|
mp3_rx_len = 0; // reset message
|
|
return false;
|
|
}
|
|
if (mp3_rx_data[2] < mp3_rx_len - 2U - 2U) { // message is not complete
|
|
return false;
|
|
}
|
|
if (0xef != mp3_rx_data[3 + mp3_rx_data[2]]) { // end by is not correct
|
|
return false;
|
|
}
|
|
|
|
puts("MP3 response: ");
|
|
/*
|
|
// display message
|
|
puts("> ");
|
|
for (uint8_t i = 0; i < mp3_rx_len; i++) {
|
|
printf("%02x ", mp3_rx_data[i]);
|
|
}
|
|
putc('\n');
|
|
*/
|
|
|
|
// check checksum
|
|
int16_t checksum = 0;
|
|
for (uint8_t i = 1; i < mp3_rx_len && i < mp3_rx_data[2] + 1U; i++) {
|
|
checksum += mp3_rx_data[i];
|
|
}
|
|
checksum = -checksum;
|
|
const int16_t expected = ((mp3_rx_data[mp3_rx_data[2] + 1] << 8) + mp3_rx_data[mp3_rx_data[2] + 2]);
|
|
if (expected != checksum) {
|
|
printf("wrong checksum: should=%+04x is=%+04x\n", expected, checksum);
|
|
mp3_rx_len = 0; // reset message
|
|
return false;
|
|
}
|
|
switch (mp3_rx_data[3]) {
|
|
case 0x3a:
|
|
puts("card inserted");
|
|
break;
|
|
case 0x3b:
|
|
puts("card removed");
|
|
break;
|
|
case 0x3d:
|
|
puts("track finished");
|
|
if ((rtc_get_counter_val() - last_finished) < 2) {
|
|
const uint16_t time_passed = (rtc_get_counter_val() - timer_door_closed) / RTC_TICKS_SECOND; // how many seconds have passed since door has been closed
|
|
switch (playing_state) {
|
|
case PLAYING_STATE_INTRO: // the welcome message finished
|
|
mp3_command(MP3_CMD_PLAY_FOLDER_FILE, track_random(MUSIC_FOLDER)); // play random music track
|
|
playing_state = PLAYING_STATE_SONG; // remember we are playing a song (for the first time)
|
|
break;
|
|
case PLAYING_STATE_SONG: // the song finished
|
|
mp3_command(MP3_CMD_PLAY_FOLDER_FILE, (TIME_FOLDER << 8) + 65); // play time announcement
|
|
playing_state = PLAYING_STATE_TIMER_INTRO; // remember we are playing the timer announcement
|
|
break;
|
|
case PLAYING_STATE_TIMER_INTRO: // the time intro finished
|
|
if (0 == (time_passed / 60)) {
|
|
mp3_command(MP3_CMD_PLAY_FOLDER_FILE, (TIME_FOLDER << 8) + 60); // play number of minutes announcement
|
|
} else {
|
|
mp3_command(MP3_CMD_PLAY_FOLDER_FILE, (TIME_FOLDER << 8) + (time_passed / 60)); // play number of minutes announcement
|
|
}
|
|
playing_state = PLAYING_STATE_TIMER_MINUTES; // remember we are playing the number of minutes
|
|
break;
|
|
case PLAYING_STATE_TIMER_MINUTES: // the minutes announcement finished
|
|
mp3_command(MP3_CMD_PLAY_FOLDER_FILE, (TIME_FOLDER << 8) + 62); // play minute announcement
|
|
playing_state = PLAYING_STATE_TIMER_MINUTE; // remember we are playing the minute announcement
|
|
break;
|
|
case PLAYING_STATE_TIMER_MINUTE: // the minute announcement finished
|
|
if (0 == (time_passed % 60)) {
|
|
mp3_command(MP3_CMD_PLAY_FOLDER_FILE, (TIME_FOLDER << 8) + 60); // play number of seconds announcement
|
|
} else {
|
|
mp3_command(MP3_CMD_PLAY_FOLDER_FILE, (TIME_FOLDER << 8) + (time_passed % 60)); // play number of seconds announcement
|
|
}
|
|
playing_state = PLAYING_STATE_TIMER_SECONDS; // remember we are playing the number of seconds
|
|
break;
|
|
case PLAYING_STATE_TIMER_SECONDS: // the number of seconds finished
|
|
mp3_command(MP3_CMD_PLAY_FOLDER_FILE, (TIME_FOLDER << 8) + 64); // play time outro announcement
|
|
playing_state = PLAYING_STATE_TIMER_OUTRO; // remember we are playing the timer outro announcement
|
|
break;
|
|
case PLAYING_STATE_TIMER_OUTRO: // the timer outro announcement finished
|
|
mp3_command(MP3_CMD_PLAY_FOLDER_FILE, track_random(TALK_FOLDER)); // play random talk track
|
|
playing_state = PLAYING_STATE_TALK; // remember we are playing the talk track
|
|
break;
|
|
case PLAYING_STATE_TALK: // the talk track finished
|
|
mp3_command(MP3_CMD_PLAY_FOLDER_FILE, track_random(MUSIC_FOLDER)); // play random music track
|
|
playing_state = PLAYING_STATE_SONG; // remember we are playing a song (again)
|
|
break;
|
|
case PLAYING_STATE_TECHNO: // techno song completed, play the next one
|
|
mp3_command(MP3_CMD_PLAY_FOLDER_FILE, track_random(TECHNO_FOLDER)); // play random techno music track
|
|
break;
|
|
case PLAYING_STATE_KANGURU: // kanguru sketch completed, play the next one
|
|
mp3_command(MP3_CMD_PLAY_FOLDER_FILE, track_random(KANGURU_FOLDER)); // play random techno music track
|
|
break;
|
|
default:
|
|
playing_state = PLAYING_STATE_OFF; // we won't play anything else
|
|
break;
|
|
}
|
|
}
|
|
last_finished = rtc_get_counter_val(); // remember last time we received the ack
|
|
break;
|
|
case 0x40:
|
|
puts("error");
|
|
led_tm1637_text("sder"); // show we have an issue with the SD card
|
|
led_tm1637_on(); // switch on display
|
|
break;
|
|
case 0x41:
|
|
puts("ack");
|
|
break;
|
|
case 0x4e:
|
|
puts("track count");
|
|
break;
|
|
default:
|
|
printf("unknown: %+02x", mp3_rx_data[3]);
|
|
break;
|
|
}
|
|
putc('\n');
|
|
mp3_rx_len = 0; // reset message
|
|
return true;
|
|
}
|
|
|
|
/** play MP3
|
|
* @param[in] argument no argument required
|
|
*/
|
|
static void command_play(void* argument)
|
|
{
|
|
if (NULL == argument) {
|
|
puts("playing first track\n");
|
|
mp3_command(MP3_CMD_PLAY, 1); // play first song
|
|
} else {
|
|
const uint32_t track = *(uint32_t*)argument; // argument not used
|
|
printf("playing track %u\n", track);
|
|
mp3_command(MP3_CMD_PLAY_FOLDER_FILE, ((track / 100) << 8) + (track % 100)); // play specific track
|
|
}
|
|
}
|
|
|
|
/** put Bluetooth audi transmitter into pairing mode
|
|
* @param[in] argument no argument required
|
|
*/
|
|
static void command_pair(void* argument)
|
|
{
|
|
(void)argument; // argument not used
|
|
// we assume the transmitter is on
|
|
puts("switching BT audio off\n");
|
|
gpio_set(GPIO_PORT(BTAUDIO_BUTTON_PIN), GPIO_PIN(BTAUDIO_BUTTON_PIN)); // press button to switch off
|
|
sleep_ms(BTAUDIO_ON); // keep pressed
|
|
gpio_clear(GPIO_PORT(BTAUDIO_BUTTON_PIN), GPIO_PIN(BTAUDIO_BUTTON_PIN)); // release button
|
|
puts("putting BT audio into pairing mode\n");
|
|
sleep_ms(1000); // wait a bit
|
|
gpio_set(GPIO_PORT(BTAUDIO_BUTTON_PIN), GPIO_PIN(BTAUDIO_BUTTON_PIN)); // press button to put into pairing mode
|
|
sleep_ms(6000); // keep pressed
|
|
gpio_clear(GPIO_PORT(BTAUDIO_BUTTON_PIN), GPIO_PIN(BTAUDIO_BUTTON_PIN)); // release button
|
|
puts("BT transmitter should be looking for speaker\n");
|
|
}
|
|
|
|
/** list of all supported commands */
|
|
static const struct menu_command_t menu_commands[] = {
|
|
{
|
|
.shortcut = 'h',
|
|
.name = "help",
|
|
.command_description = "display help",
|
|
.argument = MENU_ARGUMENT_NONE,
|
|
.argument_description = NULL,
|
|
.command_handler = &command_help,
|
|
},
|
|
{
|
|
.shortcut = 'v',
|
|
.name = "version",
|
|
.command_description = "show software and hardware version",
|
|
.argument = MENU_ARGUMENT_NONE,
|
|
.argument_description = NULL,
|
|
.command_handler = &command_version,
|
|
},
|
|
{
|
|
.shortcut = 'u',
|
|
.name = "uptime",
|
|
.command_description = "show uptime",
|
|
.argument = MENU_ARGUMENT_NONE,
|
|
.argument_description = NULL,
|
|
.command_handler = &command_uptime,
|
|
},
|
|
#if RTC_DATE_TIME
|
|
{
|
|
.shortcut = 'd',
|
|
.name = "date",
|
|
.command_description = "show/set date and time",
|
|
.argument = MENU_ARGUMENT_STRING,
|
|
.argument_description = "[YYYY-MM-DD HH:MM:SS]",
|
|
.command_handler = &command_datetime,
|
|
},
|
|
#endif
|
|
{
|
|
.shortcut = 'r',
|
|
.name = "reset",
|
|
.command_description = "reset board",
|
|
.argument = MENU_ARGUMENT_NONE,
|
|
.argument_description = NULL,
|
|
.command_handler = &command_reset,
|
|
},
|
|
{
|
|
.shortcut = 'b',
|
|
.name = "bootloader",
|
|
.command_description = "reboot into DFU bootloader",
|
|
.argument = MENU_ARGUMENT_NONE,
|
|
.argument_description = NULL,
|
|
.command_handler = &command_bootloader,
|
|
},
|
|
{
|
|
.shortcut = 'p',
|
|
.name = "play",
|
|
.command_description = "play MP3 song",
|
|
.argument = MENU_ARGUMENT_UNSIGNED,
|
|
.argument_description = "track folder+number fftt",
|
|
.command_handler = &command_play,
|
|
},
|
|
{
|
|
.shortcut = 'a',
|
|
.name = "audio",
|
|
.command_description = "put BT audio transmitter into pairing mode",
|
|
.argument = MENU_ARGUMENT_NONE,
|
|
.argument_description = NULL,
|
|
.command_handler = &command_pair,
|
|
},
|
|
};
|
|
|
|
static void command_help(void* argument)
|
|
{
|
|
(void)argument; // we won't use the argument
|
|
printf("available commands:\n");
|
|
menu_print_commands(menu_commands, LENGTH(menu_commands)); // print global commands
|
|
}
|
|
|
|
static void command_version(void* argument)
|
|
{
|
|
(void)argument; // we won't use the argument
|
|
printf("firmware date: %04u-%02u-%02u\n", BUILD_YEAR, BUILD_MONTH, BUILD_DAY); // show firmware build date
|
|
printf("device serial: %08x%08x%04x%04x\n", DESIG_UNIQUE_ID2, DESIG_UNIQUE_ID1, DESIG_UNIQUE_ID0 & 0xffff, DESIG_UNIQUE_ID0 >> 16); // not that the half-works are reversed in the first word
|
|
}
|
|
|
|
static void command_uptime(void* argument)
|
|
{
|
|
(void)argument; // we won't use the argument
|
|
const uint32_t uptime = (rtc_get_counter_val() - time_start) / RTC_TICKS_SECOND; // get time from internal RTC
|
|
printf("uptime: %u.%02u:%02u:%02u\n", uptime / (24 * 60 * 60), (uptime / (60 * 60)) % 24, (uptime / 60) % 60, uptime % 60);
|
|
}
|
|
|
|
#if RTC_DATE_TIME
|
|
static void command_datetime(void* argument)
|
|
{
|
|
char* datetime = (char*)argument; // argument is optional date time
|
|
if (NULL == argument) { // no date and time provided, just show the current day and time
|
|
const time_t time_rtc = rtc_get_counter_val() / RTC_TICKS_SECOND + rtc_offset; // get time from internal RTC
|
|
const struct tm* time_tm = localtime(&time_rtc); // convert time
|
|
const char* days[] = { "Su", "Mo", "Tu", "We", "Th", "Fr", "Sa"}; // the days of the week
|
|
printf("date: %s %d-%02d-%02d %02d:%02d:%02d\n", days[time_tm->tm_wday], 1900 + time_tm->tm_year, 1 + time_tm->tm_mon, time_tm->tm_mday, time_tm->tm_hour, time_tm->tm_min, time_tm->tm_sec);
|
|
} else { // date and time provided, set it
|
|
const char* malformed = "date and time malformed, expecting YYYY-MM-DD HH:MM:SS\n";
|
|
struct tm time_tm; // to store the parsed date time
|
|
if (strlen(datetime) != (4 + 1 + 2 + 1 + 2) + 1 + (2 + 1 + 2 + 1 + 2)) { // verify date/time is long enough
|
|
printf(malformed);
|
|
return;
|
|
}
|
|
if (!(isdigit((int8_t)datetime[0]) && isdigit((int8_t)datetime[1]) && isdigit((int8_t)datetime[2]) && isdigit((int8_t)datetime[3]) && '-' == datetime[4] && isdigit((int8_t)datetime[5]) && isdigit((int8_t)datetime[6]) && '-' == datetime[7] && isdigit((int8_t)datetime[8]) && isdigit((int8_t)datetime[9]) && ' ' == datetime[10] && isdigit((int8_t)datetime[11]) && isdigit((int8_t)datetime[12]) && ':' == datetime[13] && isdigit((int8_t)datetime[14]) && isdigit((int8_t)datetime[15]) && ':' == datetime[16] && isdigit((int8_t)datetime[17]) && isdigit((int8_t)datetime[18]))) { // verify format (good enough to not fail parsing)
|
|
printf(malformed);
|
|
return;
|
|
}
|
|
time_tm.tm_year = strtol(&datetime[0], NULL, 10) - 1900; // parse year
|
|
time_tm.tm_mon = strtol(&datetime[5], NULL, 10) - 1; // parse month
|
|
time_tm.tm_mday = strtol(&datetime[8], NULL, 10); // parse day
|
|
time_tm.tm_hour = strtol(&datetime[11], NULL, 10); // parse hour
|
|
time_tm.tm_min = strtol(&datetime[14], NULL, 10); // parse minutes
|
|
time_tm.tm_sec = strtol(&datetime[17], NULL, 10); // parse seconds
|
|
time_t time_rtc = mktime(&time_tm); // get back seconds
|
|
time_rtc -= rtc_offset; // remove start offset
|
|
time_start = time_rtc * RTC_TICKS_SECOND + (rtc_get_counter_val() - time_start); // update uptime with current date
|
|
rtc_set_counter_val(time_rtc * RTC_TICKS_SECOND); // save date/time to internal RTC
|
|
printf("date and time saved: %d-%02d-%02d %02d:%02d:%02d\n", 1900 + time_tm.tm_year, 1 + time_tm.tm_mon, time_tm.tm_mday, time_tm.tm_hour, time_tm.tm_min, time_tm.tm_sec);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
static void command_reset(void* argument)
|
|
{
|
|
(void)argument; // we won't use the argument
|
|
scb_reset_system(); // reset device
|
|
while (true); // wait for the reset to happen
|
|
}
|
|
|
|
static void command_bootloader(void* argument)
|
|
{
|
|
(void)argument; // we won't use the argument
|
|
// set DFU magic to specific RAM location
|
|
__dfu_magic[0] = 'D';
|
|
__dfu_magic[1] = 'F';
|
|
__dfu_magic[2] = 'U';
|
|
__dfu_magic[3] = '!';
|
|
scb_reset_system(); // reset system (core and peripherals)
|
|
while (true); // wait for the reset to happen
|
|
}
|
|
|
|
/** process user command
|
|
* @param[in] str user command string (\0 ended)
|
|
*/
|
|
static void process_command(char* str)
|
|
{
|
|
// ensure actions are available
|
|
if (NULL == menu_commands || 0 == LENGTH(menu_commands)) {
|
|
return;
|
|
}
|
|
// don't handle empty lines
|
|
if (!str || 0 == strlen(str)) {
|
|
return;
|
|
}
|
|
bool command_handled = false;
|
|
if (!command_handled) {
|
|
command_handled = menu_handle_command(str, menu_commands, LENGTH(menu_commands)); // try if this is not a global command
|
|
}
|
|
if (!command_handled) {
|
|
printf("command not recognized. enter help to list commands\n");
|
|
}
|
|
}
|
|
|
|
/** switch LED sign to besetzt/occupied
|
|
* @param[in] besetzt if the sign should light up besetzt/occupied (true) or frei/free(false)
|
|
*/
|
|
static void leds_sign(bool besetzt)
|
|
{
|
|
for (uint8_t led = 0; led < LED_SK6812RGBW_LEDS / 2; led++) {
|
|
led_sk6812rgbw_set_rgb(led, 0, besetzt ? 0 : 0xff, 0, 0);
|
|
}
|
|
for (uint8_t led = LED_SK6812RGBW_LEDS / 2; led < LED_SK6812RGBW_LEDS; led++) {
|
|
led_sk6812rgbw_set_rgb(led, besetzt ? 0xff : 0 , 0, 0, 0);
|
|
}
|
|
}
|
|
|
|
/** program entry point
|
|
* this is the firmware function started by the micro-controller
|
|
*/
|
|
void main(void);
|
|
void main(void)
|
|
{
|
|
rcc_clock_setup_in_hse_8mhz_out_72mhz(); // use 8 MHz high speed external clock to generate 72 MHz internal clock
|
|
|
|
#if DEBUG
|
|
// enable functionalities for easier debug
|
|
DBGMCU_CR |= DBGMCU_CR_IWDG_STOP; // stop independent watchdog counter when code is halted
|
|
DBGMCU_CR |= DBGMCU_CR_WWDG_STOP; // stop window watchdog counter when code is halted
|
|
DBGMCU_CR |= DBGMCU_CR_STANDBY; // allow debug also in standby mode (keep digital part and clock powered)
|
|
DBGMCU_CR |= DBGMCU_CR_STOP; // allow debug also in stop mode (keep clock powered)
|
|
DBGMCU_CR |= DBGMCU_CR_SLEEP; // allow debug also in sleep mode (keep clock powered)
|
|
#else
|
|
// setup watchdog to reset in case we get stuck (i.e. when an error occurred)
|
|
iwdg_set_period_ms(WATCHDOG_PERIOD); // set independent watchdog period
|
|
iwdg_start(); // start independent watchdog
|
|
#endif
|
|
|
|
board_setup(); // setup board
|
|
#if !defined(STLINKV2)
|
|
uart_setup(); // setup USART (for printing)
|
|
#endif
|
|
usb_cdcacm_setup(); // setup USB CDC ACM (for printing)
|
|
puts("\nwelcome to the CuVoodoo Dachboden Klo-Assistant\n"); // print welcome message
|
|
|
|
#if DEBUG
|
|
// show reset cause
|
|
if (RCC_CSR & (RCC_CSR_LPWRRSTF | RCC_CSR_WWDGRSTF | RCC_CSR_IWDGRSTF | RCC_CSR_SFTRSTF | RCC_CSR_PORRSTF | RCC_CSR_PINRSTF)) {
|
|
puts("reset cause(s):");
|
|
if (RCC_CSR & RCC_CSR_LPWRRSTF) {
|
|
puts(" low-power");
|
|
}
|
|
if (RCC_CSR & RCC_CSR_WWDGRSTF) {
|
|
puts(" window-watchdog");
|
|
}
|
|
if (RCC_CSR & RCC_CSR_IWDGRSTF) {
|
|
puts(" independent-watchdog");
|
|
}
|
|
if (RCC_CSR & RCC_CSR_SFTRSTF) {
|
|
puts(" software");
|
|
}
|
|
if (RCC_CSR & RCC_CSR_PORRSTF) {
|
|
puts(" POR/PDR");
|
|
}
|
|
if (RCC_CSR & RCC_CSR_PINRSTF) {
|
|
puts(" pin");
|
|
}
|
|
putc('\n');
|
|
RCC_CSR |= RCC_CSR_RMVF; // clear reset flags
|
|
}
|
|
#endif
|
|
#if !(DEBUG)
|
|
// show watchdog information
|
|
printf("setup watchdog: %.2fs", WATCHDOG_PERIOD / 1000.0);
|
|
if (FLASH_OBR & FLASH_OBR_OPTERR) {
|
|
puts(" (option bytes not set in flash: software wachtdog used, not automatically started at reset)\n");
|
|
} else if (FLASH_OBR & FLASH_OBR_WDG_SW) {
|
|
puts(" (software watchdog used, not automatically started at reset)\n");
|
|
} else {
|
|
puts(" (hardware watchdog used, automatically started at reset)\n");
|
|
}
|
|
#endif
|
|
|
|
// setup RTC
|
|
puts("setup internal RTC: ");
|
|
#if defined(BLUE_PILL) || defined(STLINKV2) || defined(BLASTER) // for boards without a Low Speed External oscillator
|
|
// note: the blue pill LSE oscillator is affected when toggling the onboard LED, thus prefer the HSE
|
|
rtc_auto_awake(RCC_HSE, 8000000 / 128 / RTC_TICKS_SECOND - 1); // use High Speed External oscillator (8 MHz / 128) as RTC clock (VBAT can't be used to keep the RTC running)
|
|
#else // for boards with an precise Low Speed External oscillator
|
|
rtc_auto_awake(RCC_LSE, 32768 / RTC_TICKS_SECOND - 1); // ensure internal RTC is on, uses the 32.678 kHz LSE, and the prescale is set to our tick speed, else update backup registers accordingly (power off the micro-controller for the change to take effect)
|
|
#endif
|
|
rtc_interrupt_enable(RTC_SEC); // enable RTC interrupt on "seconds"
|
|
nvic_enable_irq(NVIC_RTC_IRQ); // allow the RTC to interrupt
|
|
time_start = rtc_get_counter_val(); // get start time from internal RTC
|
|
puts("OK\n");
|
|
|
|
puts("setup TM1637 7-segment display: ");
|
|
bool led_tm1637_setup_ok = true;
|
|
led_tm1637_setup(true);
|
|
led_tm1637_setup_ok &= led_tm1637_brightness(LED_TM1637_14DIV16); // set maximum brightness
|
|
led_tm1637_setup_ok &= led_tm1637_time(88, 88); // light up all segments
|
|
led_tm1637_setup_ok &= led_tm1637_on(); // switch on to test it
|
|
if (led_tm1637_setup_ok) {
|
|
puts("OK\n");
|
|
} else {
|
|
puts("error\n");
|
|
}
|
|
|
|
puts("setup Bluetooth audio: ");
|
|
rcc_periph_clock_enable(GPIO_RCC(BTAUDIO_BUTTON_PIN)); // enable clock for button
|
|
gpio_clear(GPIO_PORT(BTAUDIO_BUTTON_PIN), GPIO_PIN(BTAUDIO_BUTTON_PIN)); // set as unpressed
|
|
gpio_set_mode(GPIO_PORT(BTAUDIO_BUTTON_PIN), GPIO_MODE_OUTPUT_2_MHZ, GPIO_CNF_OUTPUT_PUSHPULL, GPIO_PIN(BTAUDIO_BUTTON_PIN)); // set button pin as output
|
|
gpio_set(GPIO_PORT(BTAUDIO_BUTTON_PIN), GPIO_PIN(BTAUDIO_BUTTON_PIN)); // press button to switch on
|
|
sleep_ms(BTAUDIO_ON); // keep pressed
|
|
gpio_clear(GPIO_PORT(BTAUDIO_BUTTON_PIN), GPIO_PIN(BTAUDIO_BUTTON_PIN)); // release button
|
|
rcc_periph_clock_enable(GPIO_RCC(BTAUDIO_STATUS_PIN)); // enable clock for GPIO peripheral to read status input
|
|
gpio_set_mode(GPIO_PORT(BTAUDIO_STATUS_PIN), GPIO_MODE_INPUT, GPIO_CNF_INPUT_FLOAT, GPIO_PIN(BTAUDIO_STATUS_PIN)); // set status pin as input
|
|
exti_set_trigger(GPIO_EXTI(BTAUDIO_STATUS_PIN), EXTI_TRIGGER_FALLING); // trigger when LED goes on
|
|
exti_enable_request(GPIO_EXTI(BTAUDIO_STATUS_PIN)); // enable external interrupt
|
|
nvic_enable_irq(GPIO_NVIC_EXTI_IRQ(BTAUDIO_STATUS_PIN)); // enable interrupt
|
|
btaudio_status = 0; // number of LED blinks received, to determine the BT audio state
|
|
puts("OK\n");
|
|
|
|
led_tm1637_setup_ok &= led_tm1637_off(); // switch off and let main loop handle it
|
|
|
|
// setup LEDs
|
|
puts("setup SK6812RGBW LEDs: ");
|
|
led_sk6812rgbw_setup();
|
|
for (uint8_t led = 0; led < LED_SK6812RGBW_LEDS; led++) {
|
|
led_sk6812rgbw_set_rgb(led, 0, 0, 0, 64); // switch white on
|
|
}
|
|
sleep_ms(1000); // give user time to verify
|
|
for (uint8_t led = 0; led < LED_SK6812RGBW_LEDS; led++) {
|
|
led_sk6812rgbw_set_rgb(led, 0, 0, 0, 0); // switch all off
|
|
}
|
|
leds_sign(0 != timer_door_closed);
|
|
puts("OK\n");
|
|
|
|
puts("setup catalex YX5300 MP3 player: ");
|
|
rcc_periph_clock_enable(RCC_USART_PORT(MP3_UART)); // enable clock for UART port peripheral
|
|
rcc_periph_clock_enable(RCC_USART(MP3_UART)); // enable clock for UART peripheral
|
|
rcc_periph_reset_pulse(RST_USART(MP3_UART)); // reset peripheral
|
|
rcc_periph_clock_enable(RCC_AFIO); // enable pin alternate function (UART)
|
|
gpio_set_mode(USART_TX_PORT(MP3_UART), GPIO_MODE_OUTPUT_2_MHZ, GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, USART_TX_PIN(MP3_UART)); // setup GPIO pin UART transmit
|
|
gpio_set_mode(USART_RX_PORT(MP3_UART), GPIO_MODE_INPUT, GPIO_CNF_INPUT_PULL_UPDOWN, USART_RX_PIN(MP3_UART)); // setup GPIO pin UART receive
|
|
gpio_set(USART_RX_PORT(MP3_UART), USART_RX_PIN(MP3_UART)); // pull up to avoid noise when not connected
|
|
usart_set_baudrate(USART(MP3_UART), 9600);
|
|
usart_set_databits(USART(MP3_UART), 8);
|
|
usart_set_stopbits(USART(MP3_UART), USART_STOPBITS_1);
|
|
usart_set_mode(USART(MP3_UART), USART_MODE_TX_RX);
|
|
usart_set_parity(USART(MP3_UART), USART_PARITY_NONE);
|
|
usart_set_flow_control(USART(MP3_UART), USART_FLOWCONTROL_NONE);
|
|
usart_enable_rx_interrupt(USART(MP3_UART)); // enable receive interrupt
|
|
nvic_enable_irq(USART_IRQ(MP3_UART)); // enable the UART interrupt
|
|
usart_enable(USART(MP3_UART)); // enable UART
|
|
puts("OK\n");
|
|
mp3_command(MP3_CMD_RESET, 0); // reset all settings
|
|
sleep_ms(500);
|
|
mp3_command(MP3_CMD_SEL_DEV, 2); // set volume lower (BT audio transmitter saturates)
|
|
sleep_ms(500);
|
|
mp3_command(MP3_CMD_SET_VOLUME, 15); // set volume lower (BT audio transmitter saturates)
|
|
|
|
puts("setup door lock switch: ");
|
|
rcc_periph_clock_enable(GPIO_RCC(DOOR_PIN)); // enable clock for button
|
|
gpio_set_mode(GPIO_PORT(DOOR_PIN), GPIO_MODE_INPUT, GPIO_CNF_INPUT_FLOAT, GPIO_PIN(DOOR_PIN)); // set button pin to input
|
|
rcc_periph_clock_enable(RCC_AFIO); // enable alternate function clock for external interrupt
|
|
exti_select_source(GPIO_EXTI(DOOR_PIN), GPIO_PORT(DOOR_PIN)); // mask external interrupt of this pin only for this port
|
|
gpio_set(GPIO_PORT(DOOR_PIN), GPIO_PIN(DOOR_PIN)); // pull up to be able to detect button push (go low)
|
|
exti_set_trigger(GPIO_EXTI(DOOR_PIN), EXTI_TRIGGER_BOTH); // trigger on change
|
|
exti_enable_request(GPIO_EXTI(DOOR_PIN)); // enable external interrupt
|
|
nvic_enable_irq(GPIO_NVIC_EXTI_IRQ(DOOR_PIN)); // enable interrupt
|
|
uint32_t door_sequence[4] = {0}; // duration of past door states, in RTC ticks, oldest first, updated every time the door is opened/closed
|
|
uint32_t door_timestamp = 0; // RTC timestamps when the door state has changed
|
|
puts("OK\n");
|
|
|
|
puts("setup RNG: ");
|
|
rcc_periph_clock_enable(RCC_ADC1); // enable clock for ADC peripheral
|
|
adc_power_off(ADC1); // ensure ADC is off for configuring
|
|
rcc_periph_reset_pulse(RST_ADC1); // reset configuration
|
|
rcc_set_adcpre(RCC_CFGR_ADCPRE_PCLK2_DIV2); // set clock
|
|
adc_set_dual_mode(ADC_CR1_DUALMOD_IND); // not sure what it does
|
|
adc_disable_scan_mode(ADC1); // we only do single conversion
|
|
adc_set_single_conversion_mode(ADC1); // ensure we do single conversion
|
|
adc_set_sample_time(ADC1, ADC_CHANNEL_TEMP, ADC_SMPR_SMP_1DOT5CYC); // we will read the temperature
|
|
adc_enable_external_trigger_regular(ADC1, ADC_CR2_EXTSEL_SWSTART); // conversion is triggered by software
|
|
adc_power_on(ADC1); // start ADC
|
|
adc_reset_calibration(ADC1); // reset calibration value
|
|
adc_calibrate(ADC1); // calibrate ADC
|
|
unsigned int seed = 1; // the seed we need to generate
|
|
uint8_t seed_rounds = 25; // get plenty of sample
|
|
while (seed_rounds--) { // go through all rounds
|
|
adc_start_conversion_regular(ADC1); // do conversion
|
|
while (!adc_eoc(ADC1)); // wait for conversion
|
|
const uint16_t temp = adc_read_regular(ADC1); // read temperature
|
|
if (temp > 2) {
|
|
seed *= temp; // calculate the seed
|
|
}
|
|
sleep_ms(10); // wait a bit for the temperature to change
|
|
}
|
|
srand(seed); // set the seed
|
|
printf("%u\n", seed);
|
|
|
|
// setup terminal
|
|
terminal_prefix = ""; // set default prefix
|
|
terminal_process = &process_command; // set central function to process commands
|
|
terminal_setup(); // start terminal
|
|
|
|
// start main loop
|
|
bool action = false; // if an action has been performed don't go to sleep
|
|
while (true) { // infinite loop
|
|
iwdg_reset(); // kick the dog
|
|
if (user_input_available) { // user input is available
|
|
action = true; // action has been performed
|
|
led_toggle(); // toggle LED
|
|
char c = user_input_get(); // store receive character
|
|
terminal_send(c); // send received character to terminal
|
|
}
|
|
if (rtc_internal_tick_flag) { // the internal RTC ticked
|
|
rtc_internal_tick_flag = false; // reset flag
|
|
action = true; // action has been performed
|
|
if (0 == (rtc_get_counter_val() % RTC_TICKS_SECOND)) { // one second has passed
|
|
led_toggle(); // toggle LED (good to indicate if main function is stuck)
|
|
}
|
|
if (0 == (rtc_get_counter_val() % (RTC_TICKS_SECOND * 11))) { // 11 seconds have passed, time to check BT audio state
|
|
static bool bt_search = false; // set when searching audio device
|
|
if (0 == btaudio_status) {
|
|
puts("BT audio off, switching on\n");
|
|
gpio_set(GPIO_PORT(BTAUDIO_BUTTON_PIN), GPIO_PIN(BTAUDIO_BUTTON_PIN)); // press button to switch on
|
|
sleep_ms(BTAUDIO_ON); // keep pressed
|
|
gpio_clear(GPIO_PORT(BTAUDIO_BUTTON_PIN), GPIO_PIN(BTAUDIO_BUTTON_PIN)); // release button
|
|
led_tm1637_text("bton"); // show on display we are switching Bluetooth on
|
|
led_tm1637_on(); // switch on display
|
|
} else if (btaudio_status <= 2) {
|
|
puts("BT audio connected\n");
|
|
if (bt_search) { // we just searched before
|
|
led_tm1637_off(); // stop displaying we are searching
|
|
bt_search = false; // clear flag
|
|
}
|
|
} else if (btaudio_status <= 6) {
|
|
puts("BT audio disconnected\n");
|
|
led_tm1637_text("btof"); // show on display we are disconnected
|
|
led_tm1637_on(); // switch on display
|
|
bt_search = true; // remember we are searching (no actively re-pairing)
|
|
} else {
|
|
puts("BT audio searching\n");
|
|
led_tm1637_text("btsc"); // show on display we are searching
|
|
led_tm1637_on(); // switch on display
|
|
bt_search = true; // remember we are searching (with re-pairing)
|
|
}
|
|
btaudio_status = 0; // reset counter
|
|
}
|
|
if (timer_door_closed && 0 == ((rtc_get_counter_val() - timer_door_closed) % (RTC_TICKS_SECOND / 4))) { // 1/4 second has passed since since door closed
|
|
const uint16_t time_passed = (rtc_get_counter_val() - timer_door_closed) / RTC_TICKS_SECOND; // how many seconds have passed since door has been closed
|
|
led_tm1637_time(time_passed / 60, time_passed % 60); // show time passed
|
|
}
|
|
}
|
|
if (door_flag) { // door switch state changed
|
|
sleep_ms(100); // wait a bit to de-noise before we check the door lock state
|
|
const bool closed = (0 == gpio_get(GPIO_PORT(DOOR_PIN), GPIO_PIN(DOOR_PIN))); // get door lock state
|
|
door_flag = false; // clear flag
|
|
const uint32_t change_timestamp = rtc_get_counter_val(); // save when the door has been open/closed
|
|
action = true; // action has been performed
|
|
if (closed && 0 == timer_door_closed) { // door has been closed
|
|
puts("door closed\n");
|
|
timer_door_closed = rtc_get_counter_val(); // remember when the door has been closed
|
|
leds_sign(true); // show on the sign that the toilet is occupied
|
|
led_tm1637_time(0, 0); // start showing time on display
|
|
led_tm1637_on(); // ensure the display is on
|
|
// update door change sequence
|
|
for (uint8_t i = 0; i < LENGTH(door_sequence) - 1; i++) {
|
|
door_sequence[i] = door_sequence[i + 1]; // shift previous changes
|
|
}
|
|
door_sequence[LENGTH(door_sequence) - 1] = change_timestamp - door_timestamp; // not underflow safe
|
|
door_timestamp = change_timestamp; // remember the change
|
|
// depending on the open/close sequence, enter secret mode
|
|
if (door_sequence[LENGTH(door_sequence) - 1] < (2 * RTC_TICKS_SECOND) && door_sequence[LENGTH(door_sequence) - 2] < (2 * RTC_TICKS_SECOND) && door_sequence[LENGTH(door_sequence) - 3] < (2 * RTC_TICKS_SECOND) && door_sequence[LENGTH(door_sequence) - 4] < (2 * RTC_TICKS_SECOND)) { // sequence detected CLOSED->OPENED->CLOSED->OPEN->CLOSED, each within 2 seconds, then enter secret mode 2
|
|
puts("entering secret kanguru mode\n");
|
|
mp3_command(MP3_CMD_PLAY_FOLDER_FILE, (KANGURU_FOLDER << 8) + (rtc_get_counter_val() % KANGURU_TRACKS) + 1); // play random kanguru sketch track
|
|
playing_state = PLAYING_STATE_KANGURU; // remember we are playing kanguru sketches
|
|
} else if (door_sequence[LENGTH(door_sequence) - 1] < (2 * RTC_TICKS_SECOND) && door_sequence[LENGTH(door_sequence) - 2] < (2 * RTC_TICKS_SECOND)) { // sequence detected CLOSED->OPENED->CLOSED, each within 2 seconds, then enter secret mode 1
|
|
puts("entering secret techno mode\n");
|
|
mp3_command(MP3_CMD_PLAY_FOLDER_FILE, (TECHNO_FOLDER << 8) + (rtc_get_counter_val() % TECHNO_TRACKS) + 1); // play random techno music track
|
|
playing_state = PLAYING_STATE_TECHNO; // remember we are playing techno music
|
|
} else { // no secret mode sequence detected
|
|
mp3_command(MP3_CMD_PLAY_FOLDER_FILE, (WELCOME_FOLDER << 8) + (rtc_get_counter_val() % WELCOME_TRACKS) + 1); // play random welcome track
|
|
playing_state = PLAYING_STATE_INTRO; // remember we are playing the welcome message
|
|
}
|
|
} else if (!closed && timer_door_closed) { // door has been opened
|
|
puts("door opened\n");
|
|
timer_door_closed = 0; // remember door is now open
|
|
leds_sign(false); // show on sign the toilet is free
|
|
led_tm1637_off(); // stop showing time
|
|
mp3_command(MP3_CMD_PLAY_FOLDER_FILE, (EXIT_FOLDER << 8) + (rtc_get_counter_val() % EXIT_TRACKS) + 1); // play random exit message track
|
|
playing_state = PLAYING_STATE_EXIT; // we are playing the exit track
|
|
// update door change sequence
|
|
for (uint8_t i = 0; i < LENGTH(door_sequence) - 1; i++) {
|
|
door_sequence[i] = door_sequence[i + 1]; // shift previous changes
|
|
}
|
|
door_sequence[LENGTH(door_sequence) - 1] = change_timestamp - door_timestamp; // not underflow safe
|
|
door_timestamp = change_timestamp; // remember the change
|
|
}
|
|
}
|
|
if (mp3_rx_flag) { // data from MP3 player received
|
|
mp3_response(); // check for response
|
|
mp3_rx_flag = false; // clear flag
|
|
action = true; // action has been performed
|
|
}
|
|
if (action) { // go to sleep if nothing had to be done, else recheck for activity
|
|
action = false;
|
|
} else {
|
|
__WFI(); // go to sleep
|
|
}
|
|
} // main loop
|
|
}
|
|
|
|
/** @brief interrupt service routine called when tick passed on RTC */
|
|
void rtc_isr(void)
|
|
{
|
|
rtc_clear_flag(RTC_SEC); // clear flag
|
|
rtc_internal_tick_flag = true; // notify to show new time
|
|
}
|
|
|
|
/** UART interrupt service routine called when data has been received */
|
|
void USART_ISR(MP3_UART)(void)
|
|
{
|
|
if (usart_get_flag(USART(MP3_UART), USART_SR_RXNE)) { // data has been transmitted
|
|
if (mp3_rx_len < LENGTH(mp3_rx_data)) {
|
|
mp3_rx_data[mp3_rx_len++] = usart_recv(USART(MP3_UART)); // store received data
|
|
} else {
|
|
usart_recv(USART(MP3_UART)); // discard data
|
|
}
|
|
mp3_rx_flag = true; // notify user
|
|
}
|
|
}
|
|
|
|
/** door has been opened/closed */
|
|
void GPIO_EXTI_ISR(DOOR_PIN)(void)
|
|
{
|
|
exti_reset_request(GPIO_EXTI(DOOR_PIN)); // reset interrupt/clear flag
|
|
door_flag = true; // notify main loop
|
|
}
|
|
|
|
/** Bluetooth audio transmitter switched on LED */
|
|
void GPIO_EXTI_ISR(BTAUDIO_STATUS_PIN)(void)
|
|
{
|
|
exti_reset_request(GPIO_EXTI(BTAUDIO_STATUS_PIN)); // reset interrupt/clear flag
|
|
btaudio_status++; // count for main loop
|
|
}
|