flipperzero-firmware/lib/infrared/worker/infrared_worker.c

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#include <core/check.h>
#include <core/common_defines.h>
#include "sys/_stdint.h"
#include "infrared_worker.h"
#include <infrared.h>
#include <furi_hal_infrared.h>
#include <limits.h>
#include <stdint.h>
#include <furi.h>
#include <notification/notification_messages.h>
#define INFRARED_WORKER_RX_TIMEOUT INFRARED_RAW_RX_TIMING_DELAY_US
#define INFRARED_WORKER_RX_RECEIVED 0x01
#define INFRARED_WORKER_RX_TIMEOUT_RECEIVED 0x02
#define INFRARED_WORKER_OVERRUN 0x04
#define INFRARED_WORKER_EXIT 0x08
#define INFRARED_WORKER_TX_FILL_BUFFER 0x10
#define INFRARED_WORKER_TX_MESSAGE_SENT 0x20
#define INFRARED_WORKER_ALL_RX_EVENTS \
(INFRARED_WORKER_RX_RECEIVED | INFRARED_WORKER_RX_TIMEOUT_RECEIVED | \
INFRARED_WORKER_OVERRUN | INFRARED_WORKER_EXIT)
#define INFRARED_WORKER_ALL_TX_EVENTS \
(INFRARED_WORKER_TX_FILL_BUFFER | INFRARED_WORKER_TX_MESSAGE_SENT | INFRARED_WORKER_EXIT)
#define INFRARED_WORKER_ALL_EVENTS (INFRARED_WORKER_ALL_RX_EVENTS | INFRARED_WORKER_ALL_TX_EVENTS)
typedef enum {
InfraredWorkerStateIdle,
InfraredWorkerStateRunRx,
InfraredWorkerStateRunTx,
InfraredWorkerStateWaitTxEnd,
InfraredWorkerStateStopTx,
InfraredWorkerStateStartTx,
} InfraredWorkerState;
struct InfraredWorkerSignal {
bool decoded;
size_t timings_cnt;
union {
InfraredMessage message;
/* +1 is for pause we add at the beginning */
uint32_t timings[MAX_TIMINGS_AMOUNT + 1];
};
};
struct InfraredWorker {
FuriThread* thread;
FuriStreamBuffer* stream;
InfraredWorkerSignal signal;
InfraredWorkerState state;
InfraredEncoderHandler* infrared_encoder;
InfraredDecoderHandler* infrared_decoder;
NotificationApp* notification;
bool blink_enable;
bool decode_enable;
union {
struct {
InfraredWorkerGetSignalCallback get_signal_callback;
InfraredWorkerMessageSentCallback message_sent_callback;
void* get_signal_context;
void* message_sent_context;
uint32_t frequency;
float duty_cycle;
uint32_t tx_raw_cnt;
bool need_reinitialization;
bool steady_signal_sent;
} tx;
struct {
InfraredWorkerReceivedSignalCallback received_signal_callback;
void* received_signal_context;
bool overrun;
} rx;
};
};
typedef struct {
uint32_t duration;
bool level;
FuriHalInfraredTxGetDataState state;
} InfraredWorkerTiming;
static int32_t infrared_worker_tx_thread(void* context);
static FuriHalInfraredTxGetDataState
infrared_worker_furi_hal_data_isr_callback(void* context, uint32_t* duration, bool* level);
static void infrared_worker_furi_hal_message_sent_isr_callback(void* context);
static void infrared_worker_rx_timeout_callback(void* context) {
InfraredWorker* instance = context;
uint32_t flags_set = furi_thread_flags_set(
furi_thread_get_id(instance->thread), INFRARED_WORKER_RX_TIMEOUT_RECEIVED);
furi_check(flags_set & INFRARED_WORKER_RX_TIMEOUT_RECEIVED);
}
static void infrared_worker_rx_callback(void* context, bool level, uint32_t duration) {
InfraredWorker* instance = context;
furi_assert(duration != 0);
LevelDuration level_duration = level_duration_make(level, duration);
size_t ret =
furi_stream_buffer_send(instance->stream, &level_duration, sizeof(LevelDuration), 0);
uint32_t events = (ret == sizeof(LevelDuration)) ? INFRARED_WORKER_RX_RECEIVED :
INFRARED_WORKER_OVERRUN;
uint32_t flags_set = furi_thread_flags_set(furi_thread_get_id(instance->thread), events);
furi_check(flags_set & events);
}
static void infrared_worker_process_timeout(InfraredWorker* instance) {
if(instance->signal.timings_cnt < 2) return;
const InfraredMessage* message_decoded =
infrared_check_decoder_ready(instance->infrared_decoder);
if(message_decoded) {
instance->signal.message = *message_decoded;
instance->signal.timings_cnt = 0;
instance->signal.decoded = true;
} else {
instance->signal.decoded = false;
}
if(instance->rx.received_signal_callback)
instance->rx.received_signal_callback(
instance->rx.received_signal_context, &instance->signal);
}
static void
infrared_worker_process_timings(InfraredWorker* instance, uint32_t duration, bool level) {
const InfraredMessage* message_decoded =
instance->decode_enable ? infrared_decode(instance->infrared_decoder, level, duration) :
NULL;
if(message_decoded) {
instance->signal.message = *message_decoded;
instance->signal.timings_cnt = 0;
instance->signal.decoded = true;
if(instance->rx.received_signal_callback)
instance->rx.received_signal_callback(
instance->rx.received_signal_context, &instance->signal);
} else {
/* Skip first timing if it starts from Space */
if((instance->signal.timings_cnt == 0) && !level) {
return;
}
if(instance->signal.timings_cnt < MAX_TIMINGS_AMOUNT) {
instance->signal.timings[instance->signal.timings_cnt] = duration;
++instance->signal.timings_cnt;
} else {
uint32_t flags_set = furi_thread_flags_set(
furi_thread_get_id(instance->thread), INFRARED_WORKER_OVERRUN);
furi_check(flags_set & INFRARED_WORKER_OVERRUN);
instance->rx.overrun = true;
}
}
}
static int32_t infrared_worker_rx_thread(void* thread_context) {
InfraredWorker* instance = thread_context;
uint32_t events = 0;
LevelDuration level_duration;
TickType_t last_blink_time = 0;
while(1) {
events = furi_thread_flags_wait(INFRARED_WORKER_ALL_RX_EVENTS, 0, FuriWaitForever);
furi_check(events & INFRARED_WORKER_ALL_RX_EVENTS); /* at least one caught */
if(events & INFRARED_WORKER_RX_RECEIVED) {
if(!instance->rx.overrun && instance->blink_enable &&
((xTaskGetTickCount() - last_blink_time) > 80)) {
last_blink_time = xTaskGetTickCount();
notification_message(instance->notification, &sequence_blink_blue_10);
}
if(instance->signal.timings_cnt == 0)
notification_message(instance->notification, &sequence_display_backlight_on);
while(sizeof(LevelDuration) ==
furi_stream_buffer_receive(
instance->stream, &level_duration, sizeof(LevelDuration), 0)) {
if(!instance->rx.overrun) {
bool level = level_duration_get_level(level_duration);
uint32_t duration = level_duration_get_duration(level_duration);
infrared_worker_process_timings(instance, duration, level);
}
}
}
if(events & INFRARED_WORKER_OVERRUN) {
printf("#");
infrared_reset_decoder(instance->infrared_decoder);
instance->signal.timings_cnt = 0;
if(instance->blink_enable)
notification_message(instance->notification, &sequence_set_red_255);
}
if(events & INFRARED_WORKER_RX_TIMEOUT_RECEIVED) {
if(instance->rx.overrun) {
printf("\nOVERRUN, max samples: %d\n", MAX_TIMINGS_AMOUNT);
instance->rx.overrun = false;
if(instance->blink_enable)
notification_message(instance->notification, &sequence_reset_red);
} else {
infrared_worker_process_timeout(instance);
}
instance->signal.timings_cnt = 0;
}
if(events & INFRARED_WORKER_EXIT) break;
}
return 0;
}
void infrared_worker_rx_set_received_signal_callback(
InfraredWorker* instance,
InfraredWorkerReceivedSignalCallback callback,
void* context) {
furi_assert(instance);
instance->rx.received_signal_callback = callback;
instance->rx.received_signal_context = context;
}
InfraredWorker* infrared_worker_alloc() {
InfraredWorker* instance = malloc(sizeof(InfraredWorker));
instance->thread = furi_thread_alloc_ex("InfraredWorker", 2048, NULL, instance);
size_t buffer_size =
MAX(sizeof(InfraredWorkerTiming) * (MAX_TIMINGS_AMOUNT + 1),
sizeof(LevelDuration) * MAX_TIMINGS_AMOUNT);
instance->stream = furi_stream_buffer_alloc(buffer_size, sizeof(InfraredWorkerTiming));
instance->infrared_decoder = infrared_alloc_decoder();
instance->infrared_encoder = infrared_alloc_encoder();
instance->blink_enable = false;
instance->decode_enable = true;
instance->notification = furi_record_open(RECORD_NOTIFICATION);
instance->state = InfraredWorkerStateIdle;
return instance;
}
void infrared_worker_free(InfraredWorker* instance) {
furi_assert(instance);
furi_assert(instance->state == InfraredWorkerStateIdle);
furi_record_close(RECORD_NOTIFICATION);
infrared_free_decoder(instance->infrared_decoder);
infrared_free_encoder(instance->infrared_encoder);
furi_stream_buffer_free(instance->stream);
furi_thread_free(instance->thread);
free(instance);
}
void infrared_worker_rx_start(InfraredWorker* instance) {
furi_assert(instance);
furi_assert(instance->state == InfraredWorkerStateIdle);
furi_stream_set_trigger_level(instance->stream, sizeof(LevelDuration));
furi_thread_set_callback(instance->thread, infrared_worker_rx_thread);
furi_thread_start(instance->thread);
furi_hal_infrared_async_rx_set_capture_isr_callback(infrared_worker_rx_callback, instance);
furi_hal_infrared_async_rx_set_timeout_isr_callback(
infrared_worker_rx_timeout_callback, instance);
furi_hal_infrared_async_rx_start();
furi_hal_infrared_async_rx_set_timeout(INFRARED_WORKER_RX_TIMEOUT);
instance->rx.overrun = false;
instance->state = InfraredWorkerStateRunRx;
}
void infrared_worker_rx_stop(InfraredWorker* instance) {
furi_assert(instance);
furi_assert(instance->state == InfraredWorkerStateRunRx);
furi_hal_infrared_async_rx_set_timeout_isr_callback(NULL, NULL);
furi_hal_infrared_async_rx_set_capture_isr_callback(NULL, NULL);
furi_hal_infrared_async_rx_stop();
furi_thread_flags_set(furi_thread_get_id(instance->thread), INFRARED_WORKER_EXIT);
furi_thread_join(instance->thread);
FuriStatus status = furi_stream_buffer_reset(instance->stream);
furi_assert(status == FuriStatusOk);
(void)status;
instance->state = InfraredWorkerStateIdle;
}
bool infrared_worker_signal_is_decoded(const InfraredWorkerSignal* signal) {
furi_assert(signal);
return signal->decoded;
}
void infrared_worker_get_raw_signal(
const InfraredWorkerSignal* signal,
const uint32_t** timings,
size_t* timings_cnt) {
furi_assert(signal);
furi_assert(timings);
furi_assert(timings_cnt);
*timings = signal->timings;
*timings_cnt = signal->timings_cnt;
}
const InfraredMessage* infrared_worker_get_decoded_signal(const InfraredWorkerSignal* signal) {
furi_assert(signal);
return &signal->message;
}
void infrared_worker_rx_enable_blink_on_receiving(InfraredWorker* instance, bool enable) {
furi_assert(instance);
instance->blink_enable = enable;
}
void infrared_worker_rx_enable_signal_decoding(InfraredWorker* instance, bool enable) {
furi_assert(instance);
instance->decode_enable = enable;
}
void infrared_worker_tx_start(InfraredWorker* instance) {
furi_assert(instance);
furi_assert(instance->state == InfraredWorkerStateIdle);
furi_assert(instance->tx.get_signal_callback);
// size have to be greater than api hal infrared async tx buffer size
furi_stream_set_trigger_level(instance->stream, sizeof(InfraredWorkerTiming));
furi_thread_set_callback(instance->thread, infrared_worker_tx_thread);
instance->tx.steady_signal_sent = false;
instance->tx.need_reinitialization = false;
furi_hal_infrared_async_tx_set_data_isr_callback(
infrared_worker_furi_hal_data_isr_callback, instance);
furi_hal_infrared_async_tx_set_signal_sent_isr_callback(
infrared_worker_furi_hal_message_sent_isr_callback, instance);
instance->state = InfraredWorkerStateStartTx;
furi_thread_start(instance->thread);
}
static void infrared_worker_furi_hal_message_sent_isr_callback(void* context) {
InfraredWorker* instance = context;
uint32_t flags_set = furi_thread_flags_set(
furi_thread_get_id(instance->thread), INFRARED_WORKER_TX_MESSAGE_SENT);
furi_check(flags_set & INFRARED_WORKER_TX_MESSAGE_SENT);
}
static FuriHalInfraredTxGetDataState
infrared_worker_furi_hal_data_isr_callback(void* context, uint32_t* duration, bool* level) {
furi_assert(context);
furi_assert(duration);
furi_assert(level);
InfraredWorker* instance = context;
InfraredWorkerTiming timing;
FuriHalInfraredTxGetDataState state;
if(sizeof(InfraredWorkerTiming) ==
furi_stream_buffer_receive(instance->stream, &timing, sizeof(InfraredWorkerTiming), 0)) {
*level = timing.level;
*duration = timing.duration;
state = timing.state;
} else {
furi_assert(0);
*level = 0;
*duration = 100;
state = FuriHalInfraredTxGetDataStateDone;
}
uint32_t flags_set = furi_thread_flags_set(
furi_thread_get_id(instance->thread), INFRARED_WORKER_TX_FILL_BUFFER);
furi_check(flags_set & INFRARED_WORKER_TX_FILL_BUFFER);
return state;
}
static bool infrared_get_new_signal(InfraredWorker* instance) {
bool new_signal_obtained = false;
InfraredWorkerGetSignalResponse response =
instance->tx.get_signal_callback(instance->tx.get_signal_context, instance);
if(response == InfraredWorkerGetSignalResponseNew) {
uint32_t new_tx_frequency = 0;
float new_tx_duty_cycle = 0;
if(instance->signal.decoded) {
new_tx_frequency = infrared_get_protocol_frequency(instance->signal.message.protocol);
new_tx_duty_cycle =
infrared_get_protocol_duty_cycle(instance->signal.message.protocol);
} else {
furi_assert(instance->signal.timings_cnt > 1);
new_tx_frequency = INFRARED_COMMON_CARRIER_FREQUENCY;
new_tx_duty_cycle = INFRARED_COMMON_DUTY_CYCLE;
}
instance->tx.tx_raw_cnt = 0;
instance->tx.need_reinitialization = (new_tx_frequency != instance->tx.frequency) ||
(new_tx_duty_cycle != instance->tx.duty_cycle);
instance->tx.frequency = new_tx_frequency;
instance->tx.duty_cycle = new_tx_duty_cycle;
if(instance->signal.decoded) {
infrared_reset_encoder(instance->infrared_encoder, &instance->signal.message);
}
new_signal_obtained = true;
} else if(response == InfraredWorkerGetSignalResponseSame) {
new_signal_obtained = true;
/* no need to reinit */
} else if(response == InfraredWorkerGetSignalResponseStop) {
new_signal_obtained = false;
} else {
furi_assert(0);
}
return new_signal_obtained;
}
static bool infrared_worker_tx_fill_buffer(InfraredWorker* instance) {
bool new_data_available = true;
InfraredWorkerTiming timing;
InfraredStatus status = InfraredStatusError;
while(!furi_stream_buffer_is_full(instance->stream) && !instance->tx.need_reinitialization &&
new_data_available) {
if(instance->signal.decoded) {
status = infrared_encode(instance->infrared_encoder, &timing.duration, &timing.level);
} else {
timing.duration = instance->signal.timings[instance->tx.tx_raw_cnt];
/* raw always starts from Mark, but we fill it with space delay at start */
timing.level = (instance->tx.tx_raw_cnt % 2);
++instance->tx.tx_raw_cnt;
if(instance->tx.tx_raw_cnt >= instance->signal.timings_cnt) {
instance->tx.tx_raw_cnt = 0;
status = InfraredStatusDone;
} else {
status = InfraredStatusOk;
}
}
if(status == InfraredStatusError) {
furi_assert(0);
new_data_available = false;
break;
} else if(status == InfraredStatusOk) {
timing.state = FuriHalInfraredTxGetDataStateOk;
} else if(status == InfraredStatusDone) {
timing.state = FuriHalInfraredTxGetDataStateDone;
new_data_available = infrared_get_new_signal(instance);
if(instance->tx.need_reinitialization || !new_data_available) {
timing.state = FuriHalInfraredTxGetDataStateLastDone;
}
} else {
furi_assert(0);
}
uint32_t written_size =
furi_stream_buffer_send(instance->stream, &timing, sizeof(InfraredWorkerTiming), 0);
furi_assert(sizeof(InfraredWorkerTiming) == written_size);
(void)written_size;
}
return new_data_available;
}
static int32_t infrared_worker_tx_thread(void* thread_context) {
InfraredWorker* instance = thread_context;
furi_assert(instance->state == InfraredWorkerStateStartTx);
furi_assert(thread_context);
uint32_t events = 0;
bool new_data_available = true;
bool exit = false;
exit = !infrared_get_new_signal(instance);
furi_assert(!exit);
while(!exit) {
switch(instance->state) {
case InfraredWorkerStateStartTx:
instance->tx.need_reinitialization = false;
new_data_available = infrared_worker_tx_fill_buffer(instance);
furi_hal_infrared_async_tx_start(instance->tx.frequency, instance->tx.duty_cycle);
if(!new_data_available) {
instance->state = InfraredWorkerStateStopTx;
} else if(instance->tx.need_reinitialization) {
instance->state = InfraredWorkerStateWaitTxEnd;
} else {
instance->state = InfraredWorkerStateRunTx;
}
break;
case InfraredWorkerStateStopTx:
furi_hal_infrared_async_tx_stop();
exit = true;
break;
case InfraredWorkerStateWaitTxEnd:
furi_hal_infrared_async_tx_wait_termination();
instance->state = InfraredWorkerStateStartTx;
events = furi_thread_flags_get();
if(events & INFRARED_WORKER_EXIT) {
exit = true;
break;
}
break;
case InfraredWorkerStateRunTx:
events = furi_thread_flags_wait(INFRARED_WORKER_ALL_TX_EVENTS, 0, FuriWaitForever);
furi_check(events & INFRARED_WORKER_ALL_TX_EVENTS); /* at least one caught */
if(events & INFRARED_WORKER_EXIT) {
instance->state = InfraredWorkerStateStopTx;
break;
}
if(events & INFRARED_WORKER_TX_FILL_BUFFER) {
infrared_worker_tx_fill_buffer(instance);
if(instance->tx.need_reinitialization) {
instance->state = InfraredWorkerStateWaitTxEnd;
}
}
if(events & INFRARED_WORKER_TX_MESSAGE_SENT) {
if(instance->tx.message_sent_callback)
instance->tx.message_sent_callback(instance->tx.message_sent_context);
}
break;
default:
furi_assert(0);
break;
}
}
return 0;
}
void infrared_worker_tx_set_get_signal_callback(
InfraredWorker* instance,
InfraredWorkerGetSignalCallback callback,
void* context) {
furi_assert(instance);
instance->tx.get_signal_callback = callback;
instance->tx.get_signal_context = context;
}
void infrared_worker_tx_set_signal_sent_callback(
InfraredWorker* instance,
InfraredWorkerMessageSentCallback callback,
void* context) {
furi_assert(instance);
instance->tx.message_sent_callback = callback;
instance->tx.message_sent_context = context;
}
void infrared_worker_tx_stop(InfraredWorker* instance) {
furi_assert(instance);
furi_assert(instance->state != InfraredWorkerStateRunRx);
furi_thread_flags_set(furi_thread_get_id(instance->thread), INFRARED_WORKER_EXIT);
furi_thread_join(instance->thread);
furi_hal_infrared_async_tx_set_data_isr_callback(NULL, NULL);
furi_hal_infrared_async_tx_set_signal_sent_isr_callback(NULL, NULL);
instance->signal.timings_cnt = 0;
FuriStatus status = furi_stream_buffer_reset(instance->stream);
furi_assert(status == FuriStatusOk);
(void)status;
instance->state = InfraredWorkerStateIdle;
}
void infrared_worker_set_decoded_signal(InfraredWorker* instance, const InfraredMessage* message) {
furi_assert(instance);
furi_assert(message);
instance->signal.decoded = true;
instance->signal.message = *message;
}
void infrared_worker_set_raw_signal(
InfraredWorker* instance,
const uint32_t* timings,
size_t timings_cnt) {
furi_assert(instance);
furi_assert(timings);
furi_assert(timings_cnt > 0);
size_t max_copy_num = COUNT_OF(instance->signal.timings) - 1;
furi_check(timings_cnt <= max_copy_num);
instance->signal.timings[0] = INFRARED_RAW_TX_TIMING_DELAY_US;
memcpy(&instance->signal.timings[1], timings, timings_cnt * sizeof(uint32_t));
instance->signal.decoded = false;
instance->signal.timings_cnt = timings_cnt + 1;
}
InfraredWorkerGetSignalResponse
infrared_worker_tx_get_signal_steady_callback(void* context, InfraredWorker* instance) {
UNUSED(context);
InfraredWorkerGetSignalResponse response = instance->tx.steady_signal_sent ?
InfraredWorkerGetSignalResponseSame :
InfraredWorkerGetSignalResponseNew;
instance->tx.steady_signal_sent = true;
return response;
}