51 lines
1.2 KiB
C++
51 lines
1.2 KiB
C++
#ifndef SD_READER_TASK_H
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#define SD_READER_TASK_H
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#include <cstdint>
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#include "task.h"
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#include "lock_base_rp2040.h"
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#include "mutex.h"
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#include "condition_variable.h"
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#include "ff.h"
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class sd_reader_task : public task
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{
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public:
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sd_reader_task();
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void run() override;
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// Start the SD reading with a new file
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void start(FatFs * fs, FatFs::FILE * file);
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// Read some data from the file
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FatFs::FRESULT read_data(uint8_t* buff, uint16_t btr, uint16_t* br);
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// EOF handling
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inline bool eof() const {
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return _eof || _force_eof;
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}
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inline void force_eof() {
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_force_eof = true;
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}
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private:
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FatFs * _fs; // FatFs object
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FatFs::FILE * _file; // MP3 file on SD
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uint8_t * _req_buff;
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uint16_t _req_btr;
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uint16_t * _req_br;
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FatFs::FRESULT _req_result;
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bool _eof;
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bool _force_eof;
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volatile bool _execute;
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mutex<lock_base_rp2040> _execute_mutex;
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condition_variable<lock_base_rp2040> _execute_cv;
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mutex<lock_base_rp2040> _caller_mutex;
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condition_variable<lock_base_rp2040> _caller_cv;
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};
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#endif // SD_READER_TASK_H
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