Tasmota/sonoff/xdrv_91_mp3.ino

118 lines
3.5 KiB
C++

/*
xdrv_91_mp3.ino - MP3 Player support for Sonoff-Tasmota
Player type: RB-DFR-562, DFPlayer Mini MP3 Player
Copyright (C) 2018 Theo Arends
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifdef USE_MP3_PLAYER
#include <TasmotaSerial.h>
TasmotaSerial *MP3Player;
#define D_CMND_MP3 "MP3"
const char S_JSON_MP3_COMMAND_NVALUE[] PROGMEM = "{\"" D_CMND_MP3 "%s\":%d}";
const char S_JSON_MP3_COMMAND[] PROGMEM = "{\"" D_CMND_MP3 "%s\"}";
enum MP3_Commands { CMND_MP3_PLAY, CMND_MP3_STOP, CMND_MP3_VOLUME};
const char kMP3_Commands[] PROGMEM = "Play" "|" "Stop" "|" "Volume";
#define MP3_CMD_PLAY 3
#define MP3_CMD_VOLUME 6
#define MP3_CMD_STOP 0x0e
uint16_t MP3_Checksum(uint8_t *array)
{
uint16_t checksum = 0;
for (uint8_t i = 0; i < 6; i++) {
checksum += array[i];
}
checksum = checksum^0xffff;
return checksum+1;
}
// init player define serial tx port
void InitMP3Player() {
MP3Player = new TasmotaSerial(-1, pin[GPIO_MP3PLAYER]);
if (MP3Player->begin(9600)) {
//serial_bridge_active = 1;
MP3Player->flush();
}
}
void MP3_CMD(uint8_t mp3cmd,uint16_t val) {
uint8_t cmd[10] = {0x7e,0xff,6,0,0,0,0,0,0,0xef};
cmd[3] = mp3cmd;
cmd[5] = val>>8;
cmd[6] = val;
uint16_t chks = MP3_Checksum(&cmd[1]); // calculate out
cmd[7] = chks>>8;
cmd[8] = chks;
MP3Player->write(cmd, sizeof(cmd));
}
boolean MP3PlayerCmd() {
char command[CMDSZ];
boolean serviced = true;
uint8_t disp_len = strlen(D_CMND_MP3);
if (!strncasecmp_P(XdrvMailbox.topic, PSTR(D_CMND_MP3), disp_len)) { // Prefix
int command_code = GetCommandCode(command, sizeof(command), XdrvMailbox.topic + disp_len, kMP3_Commands);
if (CMND_MP3_PLAY == command_code) {
if (XdrvMailbox.data_len > 0) { // play
MP3_CMD(MP3_CMD_PLAY, XdrvMailbox.payload);
}
snprintf_P(mqtt_data, sizeof(mqtt_data), S_JSON_MP3_COMMAND_NVALUE, command, XdrvMailbox.payload);
}
else if (CMND_MP3_VOLUME == command_code) {
if (XdrvMailbox.data_len > 0) { // set volume
MP3_CMD(MP3_CMD_VOLUME, XdrvMailbox.payload * 30 / 100);
}
snprintf_P(mqtt_data, sizeof(mqtt_data), S_JSON_MP3_COMMAND_NVALUE, command, XdrvMailbox.payload);
}
else if (CMND_MP3_STOP == command_code) { // stop
MP3_CMD(MP3_CMD_STOP, 0);
snprintf_P(mqtt_data, sizeof(mqtt_data), S_JSON_MP3_COMMAND, command, XdrvMailbox.payload);
} else {
serviced = false; // Unknown command
}
}
return serviced;
}
/*********************************************************************************************\
* Interface
\*********************************************************************************************/
#define XDRV_91
boolean Xdrv91(byte function)
{
boolean result = false;
switch (function) {
case FUNC_PRE_INIT:
InitMP3Player();
break;
case FUNC_COMMAND:
result = MP3PlayerCmd();
break;
}
return result;
}
#endif // USE_MP3_PLAYER