dfb626a215
Change-Id: I4f3ff16fae994250f62537cd0c3021465db1189c Forwarded: https://github.com/apache/incubator-nuttx/pulls/rzr Bug: https://github.com/apache/incubator-nuttx/pull/1999 Last-update: 2020-10-16 Signed-off-by: Philippe Coval <rzr@users.sf.net>
102 lines
3.4 KiB
C
102 lines
3.4 KiB
C
/****************************************************************************
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* boards/arm/kinetis/freedom-k64f/src/k64_i2c.c
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*
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* Copyright (C) 2020 Philippe Coval. All rights reserved.
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* Author: Philippe Coval <rzr@users.sf.net>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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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 <errno.h>
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#include <debug.h>
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#include <nuttx/i2c/i2c_master.h>
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#include "kinetis_i2c.h"
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#if defined(CONFIG_KINETIS_I2C0)
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# if defined(CONFIG_SENSORS_FXOS8700CQ)
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# include "nuttx/sensors/fxos8700cq.h"
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# endif
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/****************************************************************************
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* Public Data
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****************************************************************************/
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#ifdef CONFIG_KINETIS_I2C0
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FAR struct i2c_master_s * g_i2c0_dev;
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#endif
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: k64_i2cdev_initialize
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*
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* Description:
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* Called to configure I2C
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*
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****************************************************************************/
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int k64_i2cdev_initialize(void)
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{
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int ret = OK;
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#ifdef CONFIG_KINETIS_I2C0
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g_i2c0_dev = kinetis_i2cbus_initialize(0);
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if (g_i2c0_dev == NULL)
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{
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syslog(LOG_ERR, "ERROR: kinetis_i2cbus_initialize(0) failed: %d\n",
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ret);
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ret = -ENODEV;
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}
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else
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{
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#ifdef CONFIG_I2C_DRIVER
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ret = i2c_register(g_i2c0_dev, 0);
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#if defined(CONFIG_SENSORS_FXOS8700CQ)
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fxos8700cq_register("/dev/accel0", g_i2c0_dev);
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#endif
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#endif
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}
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#endif
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return ret;
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}
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#endif /* CONFIG_KINETIS_I2C0 */
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