103 lines
3.1 KiB
C
103 lines
3.1 KiB
C
/****************************************************************************
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* boards/arm/s32k1xx/s32k148evb/src/s32k1xx_i2c.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <nuttx/compiler.h>
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#include <sys/types.h>
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#include <stdint.h>
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#include <errno.h>
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#include <debug.h>
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#include <nuttx/i2c/i2c_master.h>
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#include "s32k1xx_lpi2c.h"
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#include "s32k148evb.h"
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#ifdef CONFIG_S32K1XX_LPI2C
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: s32k1xx_i2cdev_initialize
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*
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* Description:
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* Initialize I2C driver and register /dev/i2cN devices.
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*
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****************************************************************************/
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int weak_function s32k1xx_i2cdev_initialize(void)
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{
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int ret = OK;
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#if defined(CONFIG_S32K1XX_LPI2C0) && defined(CONFIG_I2C_DRIVER)
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/* LPI2C0 *****************************************************************/
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/* Initialize the I2C driver for LPI2C0 */
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struct i2c_master_s *lpi2c0 = s32k1xx_i2cbus_initialize(0);
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if (lpi2c0 == NULL)
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{
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i2cerr("ERROR: FAILED to initialize LPI2C0\n");
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return -ENODEV;
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}
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ret = i2c_register(lpi2c0, 0);
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if (ret < 0)
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{
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i2cerr("ERROR: FAILED to register LPI2C0 driver\n");
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s32k1xx_i2cbus_uninitialize(lpi2c0);
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return ret;
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}
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#endif /* CONFIG_S32K1XX_LPI2C0 && CONFIG_I2C_DRIVER */
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#if defined(CONFIG_S32K1XX_LPI2C1) && defined(CONFIG_I2C_DRIVER)
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/* LPI2C1 *****************************************************************/
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/* Initialize the I2C driver for LPI2C1 */
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struct i2c_master_s *lpi2c1 = s32k1xx_i2cbus_initialize(1);
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if (lpi2c1 == NULL)
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{
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i2cerr("ERROR: FAILED to initialize LPI2C1\n");
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return -ENODEV;
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}
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ret = i2c_register(lpi2c1, 1);
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if (ret < 0)
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{
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i2cerr("ERROR: FAILED to register LPI2C1 driver\n");
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s32k1xx_i2cbus_uninitialize(lpi2c1);
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return ret;
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}
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#endif /* CONFIG_S32K1XX_LPI2C1 && CONFIG_I2C_DRIVER */
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return ret;
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}
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#endif /* CONFIG_S32K1XX_LPSPI */
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