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Tasmota/tasmota/xdrv_14_mp3.ino

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/*
xdrv_14_mp3.ino - MP3 support for Tasmota
Copyright (C) 2020 gemu2015, mike2nl and 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/>.
--------------------------------------------------------------------------------------------
Version yyyymmdd Action Description
--------------------------------------------------------------------------------------------
1.0.0.4 20181003 added - MP3Reset command in case that the player do rare things
- and needs a reset, the default volume will be set again too
added - MP3_CMD_RESET_VALUE for the player reset function
cleaned - some comments and added function text header
fixed - missing void's in function calls
added - MP3_CMD_DAC command to switch off/on the dac outputs
tested - works with MP3Device 1 = USB STick, or MP3Device 2 = SD-Card
- after power and/or reset the SD-Card(2) is the default device
- DAC looks working too on a headset. Had no amplifier for test
---
1.0.0.3 20180915 added - select device for SD-Card or USB Stick, default will be SD-Card
tested - works by MP3Device 1 = USB STick, or MP3Device 2 = SD-Card
- after power and/or reset the SD-Card(2) is the default device
---
1.0.0.2 20180912 added - again some if-commands to switch() because of new commands
---
1.0.0.1 20180911 added - command eq (equalizer 0..5)
tested - works in console with MP3EQ 1, the value can be 0..5
added - USB device selection via command in console
tested - looks like it is working
erased - code for USB device about some errors, will be added in a next release
---
1.0.0.1 20180910 changed - command real MP3Stop in place of pause/stop used in the original version
changed - the command MP3Play e.g. 001 to MP3Track e.g. 001,
added - new normal command MP3Play and MP3Pause
---
1.0.0.0 20180907 merged - by arendst
changed - the driver name from xdrv_91_mp3.ino to xdrv_14_mp3.ino
---
0.9.0.3 20180906 request - Pull Request
changed - if-commands to switch() for faster response
---
0.9.0.2 20180906 cleaned - source code for faster reading
---
0.9.0.1 20180905 added - #include <TasmotaSerial.h> because compiler error (Arduino IDE v1.8.5)
---
0.9.0.0 20180901 started - further development by mike2nl - https://github.com/mike2nl/Sonoff-Tasmota
base - code base from gemu2015 ;-) - https://github.com/gemu2015/Sonoff-Tasmota
forked - from arendst/tasmota - https://github.com/arendst/Tasmota
*/
#ifdef USE_MP3_PLAYER
/*********************************************************************************************\
* MP3 control for RB-DFR-562 DFRobot mini MP3 player
* https://www.dfrobot.com/wiki/index.php/DFPlayer_Mini_SKU:DFR0299
\*********************************************************************************************/
#define XDRV_14 14
#include <TasmotaSerial.h>
TasmotaSerial *MP3Player;
/*********************************************************************************************\
* constants
\*********************************************************************************************/
#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\"}";
const char kMP3_Commands[] PROGMEM = "Track|Play|Pause|Stop|Volume|EQ|Device|Reset|DAC";
/*********************************************************************************************\
* enumerationsines
\*********************************************************************************************/
enum MP3_Commands { // commands useable in console or rules
CMND_MP3_TRACK, // MP3Track 001...255
CMND_MP3_PLAY, // MP3Play, after pause or normal start to play
CMND_MP3_PAUSE, // MP3Pause
CMND_MP3_STOP, // MP3Stop, real stop, original version was pause function
CMND_MP3_VOLUME, // MP3Volume 0..100
CMND_MP3_EQ, // MP3EQ 0..5
CMND_MP3_DEVICE, // sd-card: 02, usb-stick: 01
CMND_MP3_RESET, // MP3Reset, a fresh and default restart
CMND_MP3_DAC }; // set dac, 1=off, 0=on, DAC is turned on (0) by default
/*********************************************************************************************\
* command defines
\*********************************************************************************************/
#define MP3_CMD_RESET_VALUE 0 // mp3 reset command value
// player commands
#define MP3_CMD_TRACK 0x03 // specify playback of a track, e.g. MP3Track 003
#define MP3_CMD_PLAY 0x0d // Play, works as a normal play on a real MP3 Player, starts at 001.mp3 file on the selected device
#define MP3_CMD_PAUSE 0x0e // Pause, was original designed as stop, see data sheet
#define MP3_CMD_STOP 0x16 // Stop, it's a real stop now, in the original version it was a pause command
#define MP3_CMD_VOLUME 0x06 // specifies the volume and means a console input as 0..100
#define MP3_CMD_EQ 0x07 // specify EQ(0/1/2/3/4/5), 0:Normal, 1:Pop, 2:Rock, 3:Jazz, 4:Classic, 5:Bass
#define MP3_CMD_DEVICE 0x09 // specify playback device, USB=1, SD-Card=2, default is 2 also after reset or power down/up
#define MP3_CMD_RESET 0x0C // send a reset command to start fresh
#define MP3_CMD_DAC 0x1A // activate or deactivate the DAC output for an external amplifier, DAC is turned on by default
/*********************************************************************************************\
* calculate the checksum
* starts with cmd[1] with a length of 6 bytes
\*********************************************************************************************/
uint16_t MP3_Checksum(uint8_t *array)
{
uint16_t checksum = 0;
for (uint32_t i = 0; i < 6; i++) {
checksum += array[i];
}
checksum = checksum^0xffff;
return (checksum+1);
}
/*********************************************************************************************\
* init player
* define serial tx port fixed with 9600 baud
\*********************************************************************************************/
void MP3PlayerInit(void) {
MP3Player = new TasmotaSerial(-1, Pin(GPIO_MP3_DFR562));
// start serial communication fixed to 9600 baud
if (MP3Player->begin(9600)) {
MP3Player->flush();
delay(1000);
MP3_CMD(MP3_CMD_RESET, MP3_CMD_RESET_VALUE); // reset the player to defaults
delay(3000);
MP3_CMD(MP3_CMD_VOLUME, MP3_VOLUME); // after reset set volume depending on the entry in the my_user_config.h
}
return;
}
/*********************************************************************************************\
* create the MP3 commands payload, and send it via serial interface to the MP3 player
* data length is 6 = 6 bytes [FF 06 09 00 00 00] but not counting the start, end, and verification.
* {start byte, version, length, command, feedback, para MSB, para LSB, chks MSB, chks LSB, end byte};
* {cmd[0] , cmd[1] , cmd[2], cmd[3] , cmd[4] , cmd[5] , cmd[6] , cmd[7] , cmd[8] , cmd[9] };
* {0x7e , 0xff , 6 , 0 , 0/1 , 0 , 0 , 0 , 0 , 0xef };
\*********************************************************************************************/
void MP3_CMD(uint8_t mp3cmd,uint16_t val) {
uint8_t i = 0;
uint8_t cmd[10] = {0x7e,0xff,6,0,0,0,0,0,0,0xef}; // fill array
cmd[3] = mp3cmd; // mp3 command value
cmd[4] = 0; // feedback, 1=yes, 0=no, yet not use
cmd[5] = val>>8; // data value, shift 8 byte right
cmd[6] = val; // data value low byte
uint16_t chks = MP3_Checksum(&cmd[1]); // see calculate the checksum
cmd[7] = chks>>8; // checksum. shift 8 byte right
cmd[8] = chks; // checksum low byte
MP3Player->write(cmd, sizeof(cmd)); // write mp3 data array to player
delay(1000);
if (mp3cmd == MP3_CMD_RESET) {
MP3_CMD(MP3_CMD_VOLUME, MP3_VOLUME); // after reset set volume depending on the entry in the my_user_config.h
}
return;
}
/*********************************************************************************************\
* check the MP3 commands
\*********************************************************************************************/
bool MP3PlayerCmd(void) {
char command[CMDSZ];
bool 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);
switch (command_code) {
case CMND_MP3_TRACK:
case CMND_MP3_VOLUME:
case CMND_MP3_EQ:
case CMND_MP3_DEVICE:
case CMND_MP3_DAC:
// play a track, set volume, select EQ, sepcify file device
if (XdrvMailbox.data_len > 0) {
if (command_code == CMND_MP3_TRACK) { MP3_CMD(MP3_CMD_TRACK, XdrvMailbox.payload); }
if (command_code == CMND_MP3_VOLUME) { MP3_CMD(MP3_CMD_VOLUME, XdrvMailbox.payload * 30 / 100); }
if (command_code == CMND_MP3_EQ) { MP3_CMD(MP3_CMD_EQ, XdrvMailbox.payload); }
if (command_code == CMND_MP3_DEVICE) { MP3_CMD(MP3_CMD_DEVICE, XdrvMailbox.payload); }
if (command_code == CMND_MP3_DAC) { MP3_CMD(MP3_CMD_DAC, XdrvMailbox.payload); }
}
Response_P(S_JSON_MP3_COMMAND_NVALUE, command, XdrvMailbox.payload);
break;
case CMND_MP3_PLAY:
case CMND_MP3_PAUSE:
case CMND_MP3_STOP:
case CMND_MP3_RESET:
// play or re-play after pause, pause, stop,
if (command_code == CMND_MP3_PLAY) { MP3_CMD(MP3_CMD_PLAY, 0); }
if (command_code == CMND_MP3_PAUSE) { MP3_CMD(MP3_CMD_PAUSE, 0); }
if (command_code == CMND_MP3_STOP) { MP3_CMD(MP3_CMD_STOP, 0); }
if (command_code == CMND_MP3_RESET) { MP3_CMD(MP3_CMD_RESET, 0); }
Response_P(S_JSON_MP3_COMMAND, command, XdrvMailbox.payload);
break;
default:
// else for Unknown command
serviced = false;
break;
}
} else {
return false;
}
return serviced;
}
/*********************************************************************************************\
* Interface
\*********************************************************************************************/
bool Xdrv14(uint8_t function)
{
bool result = false;
if (PinUsed(GPIO_MP3_DFR562)) {
switch (function) {
case FUNC_PRE_INIT:
MP3PlayerInit(); // init and start communication
break;
case FUNC_COMMAND:
result = MP3PlayerCmd(); // return result from mp3 player command
break;
}
}
return result;
}
#endif // USE_MP3_PLAYER
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