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Signal SD card write thread from M4 event.

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This commit is contained in:
Jared Boone 2016-03-27 22:49:30 -07:00
parent daa2f7aed0
commit 8e14d2f4e8
3 changed files with 19 additions and 3 deletions
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16
firmware/application/audio_thread.hpp
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@ -67,11 +67,23 @@ public:
~AudioThread() {
chThdTerminate(thread);
chEvtSignal(thread, EVT_FIFO_HIGHWATER);
chThdWait(thread);
}
static void check_fifo_isr() {
if( (shared_memory.FIFO_HACK != nullptr) && (thread != nullptr) ) {
auto fifo = reinterpret_cast<FIFO<uint8_t>*>(shared_memory.FIFO_HACK);
if( fifo->len() >= write_size ) {
chEvtSignalI(thread, EVT_FIFO_HIGHWATER);
}
}
}
private:
static constexpr size_t write_size = 4096;
static constexpr eventmask_t EVT_FIFO_HIGHWATER = 1;
const std::string file_path;
File file;
@ -95,7 +107,7 @@ private:
}
while( !chThdShouldTerminate() ) {
// SUCH A HACK!!!
chEvtWaitAny(EVT_FIFO_HIGHWATER);
auto fifo = reinterpret_cast<FIFO<uint8_t>*>(shared_memory.FIFO_HACK);
if( !fifo ) {
@ -117,8 +129,6 @@ private:
}
led_usb.off();
}
chThdSleepMilliseconds(25);
}
file.close();