flipperzero-firmware/firmware/targets/api-hal-include/api-hal-irda.h

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#pragma once
#include <stdint.h>
#include <stdbool.h>
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#include <stddef.h>
#ifdef __cplusplus
extern "C" {
#endif
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typedef enum {
ApiHalIrdaTxGetDataStateError, /* An error occured during transmission */
ApiHalIrdaTxGetDataStateOk, /* New data obtained */
ApiHalIrdaTxGetDataStateDone, /* New data obtained, and this is end of package */
ApiHalIrdaTxGetDataStateLastDone, /* New data obtained, and this is end of package and no more data available */
} ApiHalIrdaTxGetDataState;
typedef ApiHalIrdaTxGetDataState (*ApiHalIrdaTxGetDataCallback) (void* context, uint32_t* duration, bool* level);
/**
* 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
*/
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typedef void (*ApiHalIrdaRxCaptureCallback)(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
*/
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typedef void (*ApiHalIrdaRxTimeoutCallback)(void* ctx);
/**
* Initialize IRDA RX timer to receive interrupts.
* It provides interrupts for every RX-signal edge changing
* with its duration.
*/
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void api_hal_irda_async_rx_start(void);
/**
* Deinitialize IRDA RX interrupt.
*/
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void api_hal_irda_async_rx_stop(void);
/** Setup api hal for receiving silence timeout.
* Should be used with 'api_hal_irda_timeout_irq_set_callback()'.
*
* @param[in] timeout_ms - time to wait for silence on IRDA port
* before generating IRQ.
*/
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void api_hal_irda_async_rx_set_timeout(uint32_t timeout_ms);
/**
* 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
*/
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void api_hal_irda_async_rx_set_capture_isr_callback(ApiHalIrdaRxCaptureCallback callback, void *ctx);
/**
* Setup callback for reaching silence timeout on IRDA port.
* Should setup api hal with 'api_hal_irda_setup_rx_timeout_irq()' first.
*
* @param[in] callback - callback for silence timeout
* @param[in] ctx - context to pass to callback
*/
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void api_hal_irda_async_rx_set_timeout_isr_callback(ApiHalIrdaRxTimeoutCallback callback, void *ctx);
/**
* Check if IRDA is in use now.
* @return true - IRDA is busy, false otherwise.
*/
bool api_hal_irda_is_busy(void);
/**
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* Set callback providing new data. This function has to be called
* before api_hal_irda_async_tx_start().
*
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* @param[in] callback - function to provide new data
* @param[in] context - context for callback
*/
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void api_hal_irda_async_tx_set_data_isr_callback(ApiHalIrdaTxGetDataCallback callback, void* context);
/**
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* Start IR asynchronous transmission. It can be stopped by 2 reasons:
* 1) implicit call for api_hal_irda_async_tx_stop()
* 2) callback can provide ApiHalIrdaTxGetDataStateLastDone response
* which means no more data available for transmission.
*
* Any func (api_hal_irda_async_tx_stop() or
* api_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
* @return true if transmission successfully started, false otherwise.
* If start failed no need to free resources.
*/
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bool api_hal_irda_async_tx_start(uint32_t freq, float duty_cycle);
/**
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* Stop IR asynchronous transmission and free resources.
* Transmission will stop as soon as transmission reaches end of
* package (ApiHalIrdaTxGetDataStateDone or ApiHalIrdaTxGetDataStateLastDone).
*/
void api_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 (ApiHalIrdaTxGetDataStateLastDone).
*/
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void api_hal_irda_async_tx_wait_termination(void);
#ifdef __cplusplus
}
#endif