114 lines
3.8 KiB
C
114 lines
3.8 KiB
C
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/*
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* @brief I2C master ROM API declarations and functions
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*
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* @note
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* Copyright(C) NXP Semiconductors, 2014
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* All rights reserved.
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*
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* @par
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* Software that is described herein is for illustrative purposes only
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* which provides customers with programming information regarding the
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* LPC products. This software is supplied "AS IS" without any warranties of
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* any kind, and NXP Semiconductors and its licensor disclaim any and
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* all warranties, express or implied, including all implied warranties of
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* merchantability, fitness for a particular purpose and non-infringement of
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* intellectual property rights. NXP Semiconductors assumes no responsibility
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* or liability for the use of the software, conveys no license or rights under any
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* patent, copyright, mask work right, or any other intellectual property rights in
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* or to any products. NXP Semiconductors reserves the right to make changes
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* in the software without notification. NXP Semiconductors also makes no
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* representation or warranty that such application will be suitable for the
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* specified use without further testing or modification.
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*
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* @par
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* Permission to use, copy, modify, and distribute this software and its
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* documentation is hereby granted, under NXP Semiconductors' and its
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* licensor's relevant copyrights in the software, without fee, provided that it
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* is used in conjunction with NXP Semiconductors microcontrollers. This
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* copyright, permission, and disclaimer notice must appear in all copies of
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* this code.
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*/
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#ifndef __ROMAPI_I2CM_H_
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#define __ROMAPI_I2CM_H_
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#include "hw_i2cmd.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/** @defgroup ROMAPI_I2CM_WRAPPER CHIP: I2C master ROM wrapper functions
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* @ingroup ROMAPI_5410X
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* @{
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*/
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/**
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* @brief Get memory size in bytes needed for I2C master driver context
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* @return Size in bytes needed for the ROM driver
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*/
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uint32_t ROM_I2CM_GetMemSize(void);
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/**
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* @brief Initialize I2C master peripheral
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* @param mem : Pointer to memory area used to driver context
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* @param pInit : Pointer to I2C master init data
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* @return NULL on error, or a pointer to the device context handle
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*/
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ROM_I2CM_HANDLE_T ROM_I2CM_Init(void *mem, const ROM_I2CM_INIT_T *pInit);
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/**
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* @brief Set I2C master clock rate
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* @param pHandle : Pointer to driver context handle
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* @param inRate : Base clock rate for the I2C peripheral in Hz
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* @param i2cRate : Desired I2C master clock rate
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* @return Actual I2C master clock rate
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*/
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uint32_t ROM_I2CM_SetClockRate(ROM_I2CM_HANDLE_T pHandle, uint32_t inRate, uint32_t i2cRate);
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/**
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* @brief Register a I2C master callback
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* @param pHandle : Pointer to driver context handle
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* @param cbIndex : Callback to register
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* @param pCB : Pointer to callback function
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* @return Nothing
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*/
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void ROM_I2CM_RegisterCallback(ROM_I2CM_HANDLE_T pHandle, ROM_I2CM_CALLBACK_T cbIndex, void *pCB);
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/**
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* @brief Start a I2C master transfer
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* @param pHandle : Pointer to driver context handle
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* @param pXfer : Pointer to master transfer configuration
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* @return Error code
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* @note This function starts the transfer and returns immediately.
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*/
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ErrorCode_t ROM_I2CM_Transfer(ROM_I2CM_HANDLE_T pHandle, ROM_I2CM_XFER_T *pXfer);
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/**
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* @brief I2C master transfer (interrupt) handler
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* @param pHandle : Pointer to driver context handle
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* @return Nothing
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* @note This function should be called from the I2C interrupt handler and
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* is used in interrupt and DMA modes.
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*/
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void ROM_I2CM_TransferHandler(ROM_I2CM_HANDLE_T pHandle);
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/**
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* @brief Return the I2C master ROM driver version
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* @return Driver version number
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* @note The returned driver version number consists of a major and minor
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* number, with the minor number in the lower 8 bits and the major number in
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* the upper 8 bits.
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*/
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uint16_t ROM_I2CM_GetDriverVersion(void);
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/**
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* @}
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*/
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#ifdef __cplusplus
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}
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#endif
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#endif /* __ROMAPI_I2CM_H_ */
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