85 lines
2.5 KiB
C
85 lines
2.5 KiB
C
/****************************************************************************
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* boards/arm/stm32/nucleo-f334r8/src/stm32_hrtim.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 <stdbool.h>
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#include <errno.h>
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#include <debug.h>
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#include <nuttx/board.h>
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#include "stm32_hrtim.h"
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#ifndef CONFIG_STM32_HRTIM_DISABLE_CHARDRV
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: stm32_hrtim_setup
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*
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* Description:
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* Initialize HRTIM driver
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*
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* Returned Value:
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* 0 on success, a negated errno value on failure
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*
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****************************************************************************/
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int stm32_hrtim_setup(void)
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{
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static bool initialized = false;
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struct hrtim_dev_s *hrtim = NULL;
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int ret;
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if (!initialized)
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{
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/* Get the HRTIM interface */
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hrtim = stm32_hrtiminitialize();
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if (hrtim == NULL)
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{
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tmrerr("ERROR: Failed to get HRTIM1 interface\n");
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return -ENODEV;
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}
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/* Register the HRTIM character driver at /dev/hrtim0 */
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ret = hrtim_register("/dev/hrtim0", hrtim);
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if (ret < 0)
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{
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tmrerr("ERROR: hrtim_register failed: %d\n", ret);
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return ret;
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}
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initialized = true;
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}
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return OK;
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}
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#endif /* CONFIG_STM32_HRTIM && CONFIG_STM32_HRTIM1 */
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