418c0939a0
* Core: critical section macros. FuriHal: guard rcc registers access with critical section, fix condition race. * FuriHal: update documentation. Co-authored-by: SG <who.just.the.doctor@gmail.com>
90 lines
2.1 KiB
C
90 lines
2.1 KiB
C
/**
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* @file furi-hal-i2c.h
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* I2C HAL API
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*/
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#pragma once
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#include <stdbool.h>
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#include <stdint.h>
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#include <furi-hal-i2c-config.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/** Init I2C
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*/
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void furi_hal_i2c_init();
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/** Acquire i2c bus handle
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*
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* @return Instance of FuriHalI2cBus
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*/
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void furi_hal_i2c_acquire(FuriHalI2cBusHandle* handle);
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/** Release i2c bus handle
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*
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* @param bus instance of FuriHalI2cBus aquired in `furi_hal_i2c_acquire`
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*/
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void furi_hal_i2c_release(FuriHalI2cBusHandle* handle);
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/** Perform I2C tx transfer
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*
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* @param handle pointer to FuriHalI2cBusHandle instance
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* @param address I2C slave address
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* @param data pointer to data buffer
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* @param size size of data buffer
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* @param timeout timeout in ticks
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*
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* @return true on successful transfer, false otherwise
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*/
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bool furi_hal_i2c_tx(
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FuriHalI2cBusHandle* handle,
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const uint8_t address,
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const uint8_t* data,
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const uint8_t size,
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uint32_t timeout);
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/** Perform I2C rx transfer
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*
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* @param handle pointer to FuriHalI2cBusHandle instance
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* @param address I2C slave address
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* @param data pointer to data buffer
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* @param size size of data buffer
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* @param timeout timeout in ticks
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*
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* @return true on successful transfer, false otherwise
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*/
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bool furi_hal_i2c_rx(
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FuriHalI2cBusHandle* handle,
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const uint8_t address,
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uint8_t* data,
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const uint8_t size,
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uint32_t timeout);
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/** Perform I2C tx and rx transfers
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*
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* @param handle pointer to FuriHalI2cBusHandle instance
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* @param address I2C slave address
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* @param tx_data pointer to tx data buffer
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* @param tx_size size of tx data buffer
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* @param rx_data pointer to rx data buffer
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* @param rx_size size of rx data buffer
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* @param timeout timeout in ticks
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*
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* @return true on successful transfer, false otherwise
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*/
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bool furi_hal_i2c_trx(
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FuriHalI2cBusHandle* handle,
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const uint8_t address,
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const uint8_t* tx_data,
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const uint8_t tx_size,
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uint8_t* rx_data,
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const uint8_t rx_size,
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uint32_t timeout);
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#ifdef __cplusplus
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}
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#endif
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