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#include "subghz_file_encoder_worker.h"
#include <stream_buffer.h>
#include <lib/flipper_file/flipper_file.h>
#include <lib/flipper_file/file_helper.h>
#define TAG "SubGhzFileEncoderWorker"
#define SUBGHZ_FILE_ENCODER_LOAD 512
struct SubGhzFileEncoderWorker {
FuriThread* thread;
StreamBufferHandle_t stream;
Storage* storage;
FlipperFile* flipper_file;
volatile bool worker_running;
volatile bool worker_stoping;
bool level;
int32_t duration;
string_t str_data;
string_t file_path;
SubGhzFileEncoderWorkerCallbackEnd callback_end;
void* context_end;
};
void subghz_file_encoder_worker_callback_end(
SubGhzFileEncoderWorker* instance,
SubGhzFileEncoderWorkerCallbackEnd callback_end,
void* context_end) {
furi_assert(instance);
furi_assert(callback_end);
instance->callback_end = callback_end;
instance->context_end = context_end;
}
void subghz_file_encoder_worker_add_livel_duration(
SubGhzFileEncoderWorker* instance,
int32_t duration) {
bool res = true;
if(duration < 0 && !instance->level) {
instance->duration += duration;
res = false;
} else if(duration > 0 && instance->level) {
instance->duration += duration;
res = false;
} else if(duration == 0) {
instance->duration = 0;
}
if(res) {
instance->level = !instance->level;
instance->duration += duration;
xStreamBufferSend(instance->stream, &instance->duration, sizeof(int32_t), 10);
instance->duration = 0;
}
}
bool subghz_file_encoder_worker_data_parse(
SubGhzFileEncoderWorker* instance,
const char* strStart,
size_t len) {
char* str1;
size_t ind_start = (size_t)strStart; //store the start address of the beginning of the line
bool res = false;
str1 = strstr(
strStart, "RAW_Data: "); //looking for the beginning of the desired title in the line
if(str1 != NULL) {
str1 = strchr(
str1,
' '); //if found, shift the pointer by 1 element per line "RAW_Data: -1, 2, -2..."
while(
strchr(str1, ' ') != NULL &&
((size_t)str1 <
(len +
ind_start))) { //check that there is still an element in the line and that it has not gone beyond the line
str1 = strchr(str1, ' ');
str1 += 1; //if found, shift the pointer by next element per line
subghz_file_encoder_worker_add_livel_duration(instance, atoi(str1));
}
res = true;
}
return res;
}
LevelDuration subghz_file_encoder_worker_get_level_duration(void* context) {
furi_assert(context);
SubGhzFileEncoderWorker* instance = context;
int32_t duration;
BaseType_t xHigherPriorityTaskWoken = pdFALSE;
int ret = xStreamBufferReceiveFromISR(
instance->stream, &duration, sizeof(int32_t), &xHigherPriorityTaskWoken);
portYIELD_FROM_ISR(xHigherPriorityTaskWoken);
if(ret == sizeof(int32_t)) {
LevelDuration level_duration = {.level = LEVEL_DURATION_RESET};
if(duration < 0) {
level_duration = level_duration_make(false, duration * -1);
} else if(duration > 0) {
level_duration = level_duration_make(true, duration);
} else if(duration == 0) {
level_duration = level_duration_reset();
FURI_LOG_I(TAG, "Stop transmission");
instance->worker_stoping = true;
}
return level_duration;
} else {
FURI_LOG_E(TAG, "Slow flash read");
return level_duration_wait();
}
}
/** Worker thread
*
* @param context
* @return exit code
*/
static int32_t subghz_file_encoder_worker_thread(void* context) {
SubGhzFileEncoderWorker* instance = context;
FURI_LOG_I(TAG, "Worker start");
bool res = false;
File* file = flipper_file_get_file(instance->flipper_file);
do {
if(!flipper_file_open_existing(
instance->flipper_file, string_get_cstr(instance->file_path))) {
FURI_LOG_E(
TAG, "Unable to open file for read: %s", string_get_cstr(instance->file_path));
break;
}
if(!flipper_file_read_string(instance->flipper_file, "Protocol", instance->str_data)) {
FURI_LOG_E(TAG, "Missing Protocol");
break;
}
//skip the end of the previous line "\n"
storage_file_seek(file, 1, false);
res = true;
instance->worker_stoping = false;
FURI_LOG_I(TAG, "Start transmission");
} while(0);
while(res && instance->worker_running) {
size_t stream_free_byte = xStreamBufferSpacesAvailable(instance->stream);
if((stream_free_byte / sizeof(int32_t)) >= SUBGHZ_FILE_ENCODER_LOAD) {
if(file_helper_read_line(file, instance->str_data)) {
//skip the end of the previous line "\n"
storage_file_seek(file, 1, false);
if(!subghz_file_encoder_worker_data_parse(
instance,
string_get_cstr(instance->str_data),
strlen(string_get_cstr(instance->str_data)))) {
//to stop DMA correctly
subghz_file_encoder_worker_add_livel_duration(instance, LEVEL_DURATION_RESET);
subghz_file_encoder_worker_add_livel_duration(instance, LEVEL_DURATION_RESET);
break;
}
} else {
subghz_file_encoder_worker_add_livel_duration(instance, LEVEL_DURATION_RESET);
subghz_file_encoder_worker_add_livel_duration(instance, LEVEL_DURATION_RESET);
break;
}
}
osDelay(5);
}
//waiting for the end of the transfer
FURI_LOG_I(TAG, "End read file");
while(instance->worker_running) {
if(instance->worker_stoping) {
if(instance->callback_end) instance->callback_end(instance->context_end);
}
osDelay(50);
}
flipper_file_close(instance->flipper_file);
FURI_LOG_I(TAG, "Worker stop");
return 0;
}
SubGhzFileEncoderWorker* subghz_file_encoder_worker_alloc() {
SubGhzFileEncoderWorker* instance = furi_alloc(sizeof(SubGhzFileEncoderWorker));
instance->thread = furi_thread_alloc();
furi_thread_set_name(instance->thread, "SubghzFEWorker");
furi_thread_set_stack_size(instance->thread, 2048);
furi_thread_set_context(instance->thread, instance);
furi_thread_set_callback(instance->thread, subghz_file_encoder_worker_thread);
instance->stream = xStreamBufferCreate(sizeof(int32_t) * 2048, sizeof(int32_t));
instance->storage = furi_record_open("storage");
instance->flipper_file = flipper_file_alloc(instance->storage);
string_init(instance->str_data);
string_init(instance->file_path);
instance->level = false;
instance->worker_stoping = true;
return instance;
}
void subghz_file_encoder_worker_free(SubGhzFileEncoderWorker* instance) {
furi_assert(instance);
vStreamBufferDelete(instance->stream);
furi_thread_free(instance->thread);
string_clear(instance->str_data);
string_clear(instance->file_path);
flipper_file_free(instance->flipper_file);
furi_record_close("storage");
free(instance);
}
bool subghz_file_encoder_worker_start(SubGhzFileEncoderWorker* instance, const char* file_path) {
furi_assert(instance);
furi_assert(!instance->worker_running);
xStreamBufferReset(instance->stream);
string_set(instance->file_path, file_path);
instance->worker_running = true;
bool res = furi_thread_start(instance->thread);
return res;
}
void subghz_file_encoder_worker_stop(SubGhzFileEncoderWorker* instance) {
furi_assert(instance);
furi_assert(instance->worker_running);
instance->worker_running = false;
furi_thread_join(instance->thread);
}
bool subghz_file_encoder_worker_is_running(SubGhzFileEncoderWorker* instance) {
furi_assert(instance);
return instance->worker_running;
}
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