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#include "subghz_worker.h"
#include <stream_buffer.h>
#include <furi.h>
#define TAG "SubGhzWorker"
struct SubGhzWorker {
FuriThread* thread;
StreamBufferHandle_t stream;
volatile bool running;
volatile bool overrun;
LevelDuration filter_level_duration;
bool filter_running;
uint16_t filter_duration;
SubGhzWorkerOverrunCallback overrun_callback;
SubGhzWorkerPairCallback pair_callback;
void* context;
};
/** Rx callback timer
*
* @param level received signal level
* @param duration received signal duration
* @param context
*/
void subghz_worker_rx_callback(bool level, uint32_t duration, void* context) {
SubGhzWorker* instance = context;
BaseType_t xHigherPriorityTaskWoken = pdFALSE;
LevelDuration level_duration = level_duration_make(level, duration);
if(instance->overrun) {
instance->overrun = false;
level_duration = level_duration_reset();
}
size_t ret = xStreamBufferSendFromISR(
instance->stream, &level_duration, sizeof(LevelDuration), &xHigherPriorityTaskWoken);
if(sizeof(LevelDuration) != ret) instance->overrun = true;
portYIELD_FROM_ISR(xHigherPriorityTaskWoken);
}
/** Worker callback thread
*
* @param context
* @return exit code
*/
static int32_t subghz_worker_thread_callback(void* context) {
SubGhzWorker* instance = context;
LevelDuration level_duration;
while(instance->running) {
int ret =
xStreamBufferReceive(instance->stream, &level_duration, sizeof(LevelDuration), 10);
if(ret == sizeof(LevelDuration)) {
if(level_duration_is_reset(level_duration)) {
FURI_LOG_E(TAG, "Overrun buffer");
;
if(instance->overrun_callback) instance->overrun_callback(instance->context);
} else {
bool level = level_duration_get_level(level_duration);
uint32_t duration = level_duration_get_duration(level_duration);
if(instance->filter_running) {
if((duration < instance->filter_duration) ||
(instance->filter_level_duration.level == level)) {
instance->filter_level_duration.duration += duration;
} else if(instance->filter_level_duration.level != level) {
if(instance->pair_callback)
instance->pair_callback(
instance->context,
instance->filter_level_duration.level,
instance->filter_level_duration.duration);
instance->filter_level_duration.duration = duration;
instance->filter_level_duration.level = level;
}
} else {
if(instance->pair_callback)
instance->pair_callback(instance->context, level, duration);
}
}
}
}
return 0;
}
SubGhzWorker* subghz_worker_alloc() {
SubGhzWorker* instance = malloc(sizeof(SubGhzWorker));
instance->thread = furi_thread_alloc();
furi_thread_set_name(instance->thread, "SubghzWorker");
furi_thread_set_stack_size(instance->thread, 2048);
furi_thread_set_context(instance->thread, instance);
furi_thread_set_callback(instance->thread, subghz_worker_thread_callback);
instance->stream = xStreamBufferCreate(sizeof(LevelDuration) * 2048, sizeof(LevelDuration));
//setting filter
instance->filter_running = true;
instance->filter_duration = 20;
return instance;
}
void subghz_worker_free(SubGhzWorker* instance) {
furi_assert(instance);
vStreamBufferDelete(instance->stream);
furi_thread_free(instance->thread);
free(instance);
}
void subghz_worker_set_overrun_callback(
SubGhzWorker* instance,
SubGhzWorkerOverrunCallback callback) {
furi_assert(instance);
instance->overrun_callback = callback;
}
void subghz_worker_set_pair_callback(SubGhzWorker* instance, SubGhzWorkerPairCallback callback) {
furi_assert(instance);
instance->pair_callback = callback;
}
void subghz_worker_set_context(SubGhzWorker* instance, void* context) {
furi_assert(instance);
instance->context = context;
}
void subghz_worker_start(SubGhzWorker* instance) {
furi_assert(instance);
furi_assert(!instance->running);
instance->running = true;
furi_thread_start(instance->thread);
}
void subghz_worker_stop(SubGhzWorker* instance) {
furi_assert(instance);
furi_assert(instance->running);
instance->running = false;
furi_thread_join(instance->thread);
}
bool subghz_worker_is_running(SubGhzWorker* instance) {
furi_assert(instance);
return instance->running;
}
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