unleashed-firmware/firmware/targets/furi-hal-include/furi-hal-irda.h
Albert Kharisov 5f6aff2255
[FL-1472, FL-1596, FL-1673] IRDA: stability improvements (#655)
- Restrict with 31 bytes length for remote and signal name
- Don't stuck for 0 PWM cycle timings
- Support timings > 65535 PWM cycles
- Fix remote file open error
- Add IRDA TX debug redirect
- Add remote parse error print, improve parsing, support tabs
- Fix stucks with uncorrect RAW signal values, long strings in remote file, etc
- Fix HAL signals capturing (save previous read value)
- Fix leak in case of failed parsing
2021-08-19 03:18:42 +03:00

136 lines
4.6 KiB
C

#pragma once
#include <stdint.h>
#include <stdbool.h>
#include <stddef.h>
#ifdef __cplusplus
extern "C" {
#endif
#define IRDA_MAX_FREQUENCY 56000
#define IRDA_MIN_FREQUENCY 10000
typedef enum {
FuriHalIrdaTxGetDataStateOk, /* New data obtained */
FuriHalIrdaTxGetDataStateDone, /* New data obtained, and this is end of package */
FuriHalIrdaTxGetDataStateLastDone, /* New data obtained, and this is end of package and no more data available */
} FuriHalIrdaTxGetDataState;
/* Callback type for providing data to IRDA DMA TX system. It is called every tim */
typedef FuriHalIrdaTxGetDataState (*FuriHalIrdaTxGetDataISRCallback) (void* context, uint32_t* duration, bool* level);
/* Callback type called every time signal is sent by DMA to Timer.
* Actually, it means there are 2 timings left to send for this signal, which is almost end.
* Don't use this callback to stop transmission, as far as there are next signal is
* charged for transmission by DMA.
*/
typedef void (*FuriHalIrdaTxSignalSentISRCallback) (void* context);
/**
* Signature of callback function for receiving continuous IRDA rx signal.
*
* @param ctx[in] - context to pass to callback
* @param level[in] - level of input IRDA rx signal
* @param duration[in] - duration of continuous rx signal level in us
*/
typedef void (*FuriHalIrdaRxCaptureCallback)(void* ctx, bool level, uint32_t duration);
/**
* Signature of callback function for reaching silence timeout on IRDA port.
*
* @param ctx[in] - context to pass to callback
*/
typedef void (*FuriHalIrdaRxTimeoutCallback)(void* ctx);
/**
* Initialize IRDA RX timer to receive interrupts.
* It provides interrupts for every RX-signal edge changing
* with its duration.
*/
void furi_hal_irda_async_rx_start(void);
/**
* Deinitialize IRDA RX interrupt.
*/
void furi_hal_irda_async_rx_stop(void);
/** Setup hal for receiving silence timeout.
* Should be used with 'furi_hal_irda_timeout_irq_set_callback()'.
*
* @param[in] timeout_us - time to wait for silence on IRDA port
* before generating IRQ.
*/
void furi_hal_irda_async_rx_set_timeout(uint32_t timeout_us);
/** Setup callback for previously initialized IRDA RX interrupt.
*
* @param[in] callback - callback to call when RX signal edge changing occurs
* @param[in] ctx - context for callback
*/
void furi_hal_irda_async_rx_set_capture_isr_callback(FuriHalIrdaRxCaptureCallback callback, void *ctx);
/**
* Setup callback for reaching silence timeout on IRDA port.
* Should setup hal with 'furi_hal_irda_setup_rx_timeout_irq()' first.
*
* @param[in] callback - callback for silence timeout
* @param[in] ctx - context to pass to callback
*/
void furi_hal_irda_async_rx_set_timeout_isr_callback(FuriHalIrdaRxTimeoutCallback callback, void *ctx);
/**
* Check if IRDA is in use now.
* @return true - IRDA is busy, false otherwise.
*/
bool furi_hal_irda_is_busy(void);
/**
* Set callback providing new data. This function has to be called
* before furi_hal_irda_async_tx_start().
*
* @param[in] callback - function to provide new data
* @param[in] context - context for callback
*/
void furi_hal_irda_async_tx_set_data_isr_callback(FuriHalIrdaTxGetDataISRCallback callback, void* context);
/**
* Start IR asynchronous transmission. It can be stopped by 2 reasons:
* 1) implicit call for furi_hal_irda_async_tx_stop()
* 2) callback can provide FuriHalIrdaTxGetDataStateLastDone response
* which means no more data available for transmission.
*
* Any func (furi_hal_irda_async_tx_stop() or
* furi_hal_irda_async_tx_wait_termination()) has to be called to wait
* end of transmission and free resources.
*
* @param[in] freq - frequency for PWM
* @param[in] duty_cycle - duty cycle for PWM
*/
void furi_hal_irda_async_tx_start(uint32_t freq, float duty_cycle);
/**
* Stop IR asynchronous transmission and free resources.
* Transmission will stop as soon as transmission reaches end of
* package (FuriHalIrdaTxGetDataStateDone or FuriHalIrdaTxGetDataStateLastDone).
*/
void furi_hal_irda_async_tx_stop(void);
/**
* Wait for end of IR asynchronous transmission and free resources.
* Transmission will stop as soon as transmission reaches end of
* transmission (FuriHalIrdaTxGetDataStateLastDone).
*/
void furi_hal_irda_async_tx_wait_termination(void);
/**
* Set callback for end of signal transmission
*
* @param[in] callback - function to call when signal is sent
* @param[in] context - context for callback
*/
void furi_hal_irda_async_tx_set_signal_sent_isr_callback(FuriHalIrdaTxSignalSentISRCallback callback, void* context);
#ifdef __cplusplus
}
#endif