365 lines
12 KiB
C
365 lines
12 KiB
C
/*
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* Copyright 2018 NXP
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* All rights reserved.
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*
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include "fsl_common.h"
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#include "fsl_lpi2c.h"
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#include "fsl_adapter_i2c.h"
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/*******************************************************************************
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* Definitions
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******************************************************************************/
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/*! @brief i2c master state structure. */
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typedef struct _hal_i2c_master
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{
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hal_i2c_master_transfer_callback_t callback;
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void *callbackParam;
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lpi2c_master_handle_t hardwareHandle;
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uint8_t instance;
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} hal_i2c_master_t;
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/*! @brief i2c slave state structure. */
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typedef struct _hal_i2c_slave
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{
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hal_i2c_slave_transfer_callback_t callback;
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void *callbackParam;
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hal_i2c_slave_transfer_t transfer;
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lpi2c_slave_handle_t hardwareHandle;
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uint8_t instance;
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} hal_i2c_slave_t;
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/*******************************************************************************
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* Prototypes
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******************************************************************************/
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/*******************************************************************************
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* Variables
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******************************************************************************/
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/*! @brief Pointers to i2c bases for each instance. */
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static LPI2C_Type *const s_i2cBases[] = LPI2C_BASE_PTRS;
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/*******************************************************************************
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* Code
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******************************************************************************/
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static hal_i2c_status_t HAL_I2cGetStatus(status_t status)
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{
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hal_i2c_status_t returnStatus;
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switch (status)
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{
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case kStatus_Success:
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{
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returnStatus = kStatus_HAL_I2cSuccess;
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break;
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}
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case kStatus_LPI2C_Busy:
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{
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returnStatus = kStatus_HAL_I2cBusy;
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break;
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}
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case kStatus_LPI2C_Idle:
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{
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returnStatus = kStatus_HAL_I2cIdle;
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break;
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}
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case kStatus_LPI2C_Nak:
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{
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returnStatus = kStatus_HAL_I2cNak;
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break;
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}
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case kStatus_LPI2C_ArbitrationLost:
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{
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returnStatus = kStatus_HAL_I2cArbitrationLost;
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break;
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}
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case kStatus_LPI2C_Timeout:
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{
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returnStatus = kStatus_HAL_I2cTimeout;
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break;
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}
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default:
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{
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returnStatus = kStatus_HAL_I2cError;
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break;
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}
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}
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return returnStatus;
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}
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static void HAL_I2cMasterCallback(LPI2C_Type *lpi2cBase,
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lpi2c_master_handle_t *handle,
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status_t status,
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void *callbackParam)
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{
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hal_i2c_master_t *i2cMasterHandle;
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assert(NULL != callbackParam);
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i2cMasterHandle = (hal_i2c_master_t *)callbackParam;
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if (NULL != i2cMasterHandle->callback)
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{
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i2cMasterHandle->callback(i2cMasterHandle, HAL_I2cGetStatus(status), i2cMasterHandle->callbackParam);
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}
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}
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static void HAL_I2cSlaveCallback(LPI2C_Type *lpi2cBase, lpi2c_slave_transfer_t *xfer, void *callbackParam)
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{
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hal_i2c_slave_t *i2cSlaveHandle;
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assert(NULL != callbackParam);
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i2cSlaveHandle = (hal_i2c_slave_t *)callbackParam;
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if (NULL != i2cSlaveHandle->callback)
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{
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i2cSlaveHandle->transfer.event = (hal_i2c_slave_transfer_event_t)xfer->event;
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i2cSlaveHandle->transfer.data = xfer->data;
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i2cSlaveHandle->transfer.dataSize = xfer->dataSize;
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i2cSlaveHandle->transfer.completionStatus = HAL_I2cGetStatus(xfer->completionStatus);
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i2cSlaveHandle->transfer.transferredCount = xfer->transferredCount;
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i2cSlaveHandle->callback(i2cSlaveHandle, &i2cSlaveHandle->transfer, i2cSlaveHandle->callbackParam);
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xfer->data = i2cSlaveHandle->transfer.data;
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xfer->dataSize = i2cSlaveHandle->transfer.dataSize;
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}
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}
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hal_i2c_status_t HAL_I2cMasterInit(hal_i2c_master_handle_t handle, const hal_i2c_master_config_t *halI2cConfig)
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{
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hal_i2c_master_t *i2cMasterHandle;
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lpi2c_master_config_t i2cConfig;
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assert(NULL != handle);
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assert(NULL != halI2cConfig);
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assert(HAL_I2C_MASTER_HANDLE_SIZE >= sizeof(hal_i2c_master_t));
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i2cMasterHandle = (hal_i2c_master_t *)handle;
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LPI2C_MasterGetDefaultConfig(&i2cConfig);
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i2cConfig.enableMaster = halI2cConfig->enableMaster;
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i2cConfig.baudRate_Hz = halI2cConfig->baudRate_Bps;
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i2cMasterHandle->instance = halI2cConfig->instance;
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LPI2C_MasterInit(s_i2cBases[i2cMasterHandle->instance], &i2cConfig, halI2cConfig->srcClock_Hz);
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return kStatus_HAL_I2cSuccess;
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}
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hal_i2c_status_t HAL_I2cSlaveInit(hal_i2c_slave_handle_t handle, const hal_i2c_slave_config_t *halI2cConfig)
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{
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hal_i2c_slave_t *i2cSlaveHandle;
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lpi2c_slave_config_t i2cConfig;
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assert(NULL != handle);
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assert(NULL != halI2cConfig);
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assert(HAL_I2C_SLAVE_HANDLE_SIZE >= sizeof(hal_i2c_slave_t));
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i2cSlaveHandle = (hal_i2c_slave_t *)handle;
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LPI2C_SlaveGetDefaultConfig(&i2cConfig);
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i2cConfig.enableSlave = halI2cConfig->enableSlave;
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i2cConfig.address0 = (uint8_t)halI2cConfig->slaveAddress;
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i2cSlaveHandle->instance = halI2cConfig->instance;
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LPI2C_SlaveInit(s_i2cBases[i2cSlaveHandle->instance], &i2cConfig, halI2cConfig->srcClock_Hz);
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return kStatus_HAL_I2cSuccess;
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}
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hal_i2c_status_t HAL_I2cMasterDeinit(hal_i2c_master_handle_t handle)
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{
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hal_i2c_master_t *i2cMasterHandle;
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assert(NULL != handle);
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i2cMasterHandle = (hal_i2c_master_t *)handle;
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LPI2C_MasterDeinit(s_i2cBases[i2cMasterHandle->instance]);
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return kStatus_HAL_I2cSuccess;
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}
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hal_i2c_status_t HAL_I2cSlaveDeinit(hal_i2c_slave_handle_t handle)
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{
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hal_i2c_slave_t *i2cSlaveHandle;
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assert(NULL != handle);
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i2cSlaveHandle = (hal_i2c_slave_t *)handle;
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LPI2C_SlaveDeinit(s_i2cBases[i2cSlaveHandle->instance]);
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return kStatus_HAL_I2cSuccess;
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}
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hal_i2c_status_t HAL_I2cMasterWriteBlocking(hal_i2c_master_handle_t handle,
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const uint8_t *txBuff,
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size_t txSize,
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uint32_t flags)
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{
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return kStatus_HAL_I2cError;
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}
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hal_i2c_status_t HAL_I2cMasterReadBlocking(hal_i2c_master_handle_t handle,
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uint8_t *rxBuff,
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size_t rxSize,
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uint32_t flags)
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{
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return kStatus_HAL_I2cError;
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}
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hal_i2c_status_t HAL_I2cSlaveWriteBlocking(hal_i2c_slave_handle_t handle, const uint8_t *txBuff, size_t txSize)
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{
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return kStatus_HAL_I2cError;
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}
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hal_i2c_status_t HAL_I2cSlaveReadBlocking(hal_i2c_slave_handle_t handle, uint8_t *rxBuff, size_t rxSize)
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{
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return kStatus_HAL_I2cError;
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}
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hal_i2c_status_t HAL_I2cMasterTransferBlocking(hal_i2c_master_handle_t handle, hal_i2c_master_transfer_t *xfer)
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{
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hal_i2c_master_t *i2cMasterHandle;
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lpi2c_master_transfer_t transfer;
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assert(NULL != handle);
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assert(NULL != xfer);
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i2cMasterHandle = (hal_i2c_master_t *)handle;
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transfer.flags = xfer->flags;
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transfer.slaveAddress = xfer->slaveAddress;
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transfer.direction = (kHAL_I2cRead == xfer->direction) ? kLPI2C_Read : kLPI2C_Write;
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transfer.subaddress = xfer->subaddress;
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transfer.subaddressSize = xfer->subaddressSize;
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transfer.data = xfer->data;
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transfer.dataSize = xfer->dataSize;
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return HAL_I2cGetStatus(LPI2C_MasterTransferBlocking(s_i2cBases[i2cMasterHandle->instance], &transfer));
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}
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hal_i2c_status_t HAL_I2cMasterTransferInstallCallback(hal_i2c_master_handle_t handle,
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hal_i2c_master_transfer_callback_t callback,
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void *callbackParam)
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{
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hal_i2c_master_t *i2cMasterHandle;
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assert(NULL != handle);
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i2cMasterHandle = (hal_i2c_master_t *)handle;
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i2cMasterHandle->callback = callback;
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i2cMasterHandle->callbackParam = callbackParam;
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LPI2C_MasterTransferCreateHandle(s_i2cBases[i2cMasterHandle->instance], &i2cMasterHandle->hardwareHandle,
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HAL_I2cMasterCallback, i2cMasterHandle);
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return kStatus_HAL_I2cSuccess;
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}
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hal_i2c_status_t HAL_I2cMasterTransferNonBlocking(hal_i2c_master_handle_t handle, hal_i2c_master_transfer_t *xfer)
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{
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hal_i2c_master_t *i2cMasterHandle;
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lpi2c_master_transfer_t transfer;
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assert(NULL != handle);
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assert(NULL != xfer);
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i2cMasterHandle = (hal_i2c_master_t *)handle;
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transfer.flags = xfer->flags;
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transfer.slaveAddress = xfer->slaveAddress;
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transfer.direction = (kHAL_I2cRead == xfer->direction) ? kLPI2C_Read : kLPI2C_Write;
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transfer.subaddress = xfer->subaddress;
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transfer.subaddressSize = xfer->subaddressSize;
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transfer.data = xfer->data;
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transfer.dataSize = xfer->dataSize;
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return HAL_I2cGetStatus(LPI2C_MasterTransferNonBlocking(s_i2cBases[i2cMasterHandle->instance],
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&i2cMasterHandle->hardwareHandle, &transfer));
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}
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hal_i2c_status_t HAL_I2cMasterTransferGetCount(hal_i2c_master_handle_t handle, size_t *count)
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{
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hal_i2c_master_t *i2cMasterHandle;
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assert(NULL != handle);
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assert(NULL != count);
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i2cMasterHandle = (hal_i2c_master_t *)handle;
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return HAL_I2cGetStatus(
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LPI2C_MasterTransferGetCount(s_i2cBases[i2cMasterHandle->instance], &i2cMasterHandle->hardwareHandle, count));
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}
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hal_i2c_status_t HAL_I2cMasterTransferAbort(hal_i2c_master_handle_t handle)
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{
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hal_i2c_master_t *i2cMasterHandle;
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assert(NULL != handle);
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i2cMasterHandle = (hal_i2c_master_t *)handle;
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LPI2C_MasterTransferAbort(s_i2cBases[i2cMasterHandle->instance], &i2cMasterHandle->hardwareHandle);
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return kStatus_HAL_I2cSuccess;
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}
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hal_i2c_status_t HAL_I2cSlaveTransferInstallCallback(hal_i2c_slave_handle_t handle,
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hal_i2c_slave_transfer_callback_t callback,
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void *callbackParam)
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{
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hal_i2c_slave_t *i2cSlaveHandle;
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assert(NULL != handle);
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i2cSlaveHandle = (hal_i2c_slave_t *)handle;
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i2cSlaveHandle->callback = callback;
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i2cSlaveHandle->callbackParam = callbackParam;
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LPI2C_SlaveTransferCreateHandle(s_i2cBases[i2cSlaveHandle->instance], &i2cSlaveHandle->hardwareHandle,
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HAL_I2cSlaveCallback, i2cSlaveHandle);
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return kStatus_HAL_I2cSuccess;
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}
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hal_i2c_status_t HAL_I2cSlaveTransferNonBlocking(hal_i2c_slave_handle_t handle, uint32_t eventMask)
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{
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hal_i2c_slave_t *i2cSlaveHandle;
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assert(NULL != handle);
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i2cSlaveHandle = (hal_i2c_slave_t *)handle;
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return HAL_I2cGetStatus(LPI2C_SlaveTransferNonBlocking(s_i2cBases[i2cSlaveHandle->instance],
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&i2cSlaveHandle->hardwareHandle, eventMask));
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}
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hal_i2c_status_t HAL_I2cSlaveTransferAbort(hal_i2c_slave_handle_t handle)
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{
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hal_i2c_slave_t *i2cSlaveHandle;
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assert(NULL != handle);
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i2cSlaveHandle = (hal_i2c_slave_t *)handle;
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LPI2C_SlaveTransferAbort(s_i2cBases[i2cSlaveHandle->instance], &i2cSlaveHandle->hardwareHandle);
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return kStatus_HAL_I2cSuccess;
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}
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hal_i2c_status_t HAL_I2cSlaveTransferGetCount(hal_i2c_slave_handle_t handle, size_t *count)
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{
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hal_i2c_slave_t *i2cSlaveHandle;
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assert(NULL != handle);
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assert(NULL != count);
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i2cSlaveHandle = (hal_i2c_slave_t *)handle;
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return HAL_I2cGetStatus(
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LPI2C_SlaveTransferGetCount(s_i2cBases[i2cSlaveHandle->instance], &i2cSlaveHandle->hardwareHandle, count));
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}
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