e27b59456e
Gregory Nutt has submitted the SGA Haltian Ltd has submitted the SGA as a result we can migrate the licenses to Apache. Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
83 lines
2.5 KiB
C
83 lines
2.5 KiB
C
/****************************************************************************
|
|
* boards/arm/stm32l4/nucleo-l452re/src/stm32_dac.c
|
|
*
|
|
* Licensed to the Apache Software Foundation (ASF) under one or more
|
|
* contributor license agreements. See the NOTICE file distributed with
|
|
* this work for additional information regarding copyright ownership. The
|
|
* ASF licenses this file to you under the Apache License, Version 2.0 (the
|
|
* "License"); you may not use this file except in compliance with the
|
|
* License. You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
* License for the specific language governing permissions and limitations
|
|
* under the License.
|
|
*
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
#include <errno.h>
|
|
#include <debug.h>
|
|
|
|
#include <nuttx/board.h>
|
|
#include <nuttx/analog/dac.h>
|
|
|
|
#include "stm32l4_gpio.h"
|
|
#include "stm32l4_dac.h"
|
|
#include "nucleo-l452re.h"
|
|
|
|
#include <arch/board/board.h>
|
|
|
|
/****************************************************************************
|
|
* Private Data
|
|
****************************************************************************/
|
|
|
|
static struct dac_dev_s *g_dac;
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: stm32l4_dac_setup
|
|
****************************************************************************/
|
|
|
|
int stm32l4_dac_setup(void)
|
|
{
|
|
static bool initialized = false;
|
|
|
|
if (!initialized)
|
|
{
|
|
#ifdef CONFIG_STM32L4_DAC1
|
|
int ret;
|
|
|
|
g_dac = stm32l4_dacinitialize(0);
|
|
if (g_dac == NULL)
|
|
{
|
|
aerr("ERROR: Failed to get DAC interface\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
/* Register the DAC driver at "/dev/dac0" */
|
|
|
|
ret = dac_register("/dev/dac0", g_dac);
|
|
if (ret < 0)
|
|
{
|
|
aerr("ERROR: dac_register failed: %d\n", ret);
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
initialized = true;
|
|
}
|
|
|
|
return OK;
|
|
}
|