rt-thread-official/bsp/lpc5410x/Libraries/lpc_chip/chip_5410x/romapi_i2cm.c

105 lines
3.3 KiB
C

/*
* @brief I2C master ROM API declarations and functions
* These are the public ROM APIs and functions of the I2C master
* driver.
*
* @note
* Copyright(C) NXP Semiconductors, 2014
* All rights reserved.
*
* @par
* Software that is described herein is for illustrative purposes only
* which provides customers with programming information regarding the
* LPC products. This software is supplied "AS IS" without any warranties of
* any kind, and NXP Semiconductors and its licensor disclaim any and
* all warranties, express or implied, including all implied warranties of
* merchantability, fitness for a particular purpose and non-infringement of
* intellectual property rights. NXP Semiconductors assumes no responsibility
* or liability for the use of the software, conveys no license or rights under any
* patent, copyright, mask work right, or any other intellectual property rights in
* or to any products. NXP Semiconductors reserves the right to make changes
* in the software without notification. NXP Semiconductors also makes no
* representation or warranty that such application will be suitable for the
* specified use without further testing or modification.
*
* @par
* Permission to use, copy, modify, and distribute this software and its
* documentation is hereby granted, under NXP Semiconductors' and its
* licensor's relevant copyrights in the software, without fee, provided that it
* is used in conjunction with NXP Semiconductors microcontrollers. This
* copyright, permission, and disclaimer notice must appear in all copies of
* this code.
*/
#include "romapi_5410x.h"
/* Get memory size in bytes needed for I2C master driver context */
uint32_t ROM_I2CM_GetMemSize(void)
{
#if defined(ROMDRIVERSV2_PRESENT)
return ROMAPI_I2CM_API->GetMemSize();
#else
return i2cm_api.GetMemSize();
#endif
}
/* Initialize I2C master peripheral */
ROM_I2CM_HANDLE_T ROM_I2CM_Init(void *mem, const ROM_I2CM_INIT_T *pInit)
{
#if defined(ROMDRIVERSV2_PRESENT)
return ROMAPI_I2CM_API->Init(mem, pInit);
#else
return i2cm_api.Init(mem, pInit);
#endif
}
/* Set I2C master clock rate */
uint32_t ROM_I2CM_SetClockRate(ROM_I2CM_HANDLE_T pHandle, uint32_t inRate, uint32_t i2cRate)
{
#if defined(ROMDRIVERSV2_PRESENT)
return ROMAPI_I2CM_API->SetClockRate(pHandle, inRate, i2cRate);
#else
return i2cm_api.SetClockRate(pHandle, inRate, i2cRate);
#endif
}
/* Register a I2C master callback */
void ROM_I2CM_RegisterCallback(ROM_I2CM_HANDLE_T pHandle, ROM_I2CM_CALLBACK_T cbIndex, void *pCB)
{
#if defined(ROMDRIVERSV2_PRESENT)
ROMAPI_I2CM_API->RegisterCallback(pHandle, cbIndex, pCB);
#else
i2cm_api.RegisterCallback(pHandle, cbIndex, pCB);
#endif
}
/* Start a I2C master transfer */
ErrorCode_t ROM_I2CM_Transfer(ROM_I2CM_HANDLE_T pHandle, ROM_I2CM_XFER_T *pXfer)
{
#if defined(ROMDRIVERSV2_PRESENT)
return ROMAPI_I2CM_API->Transfer(pHandle, pXfer);
#else
return i2cm_api.Transfer(pHandle, pXfer);
#endif
}
/* I2C master transfer (interrupt) handler */
void ROM_I2CM_TransferHandler(ROM_I2CM_HANDLE_T pHandle)
{
#if defined(ROMDRIVERSV2_PRESENT)
ROMAPI_I2CM_API->TransferHandler(pHandle);
#else
i2cm_api.TransferHandler(pHandle);
#endif
}
/* Return the I2C master ROM driver version */
uint16_t ROM_I2CM_GetDriverVersion(void)
{
#if defined(ROMDRIVERSV2_PRESENT)
return ROMAPI_I2CM_API->GetDriverVersion();
#else
return i2cm_api.GetDriverVersion();
#endif
}