6dd4d5de15
- Add defconfig and board specific files - Create mpfs/common for code which is shared between MPFS boards. - Add support for GPIO driven EMMCSD mux. - Move DDR Libero definitions from arch to boards. Signed-off-by: Jani Paalijarvi <jani.paalijarvi@unikie.com>
91 lines
2.8 KiB
C
91 lines
2.8 KiB
C
/****************************************************************************
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* boards/risc-v/mpfs/common/src/mpfs_pwm.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 <errno.h>
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#include <stddef.h>
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#include <debug.h>
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#include <string.h>
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#include <limits.h>
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#include <nuttx/timers/pwm.h>
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#include <arch/board/board.h>
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#include "mpfs_corepwm.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: mpfs_pwm_setup
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*
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* Description:
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*
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* Initialize PWM and register PWM devices
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*
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****************************************************************************/
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int mpfs_pwm_setup(void)
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{
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struct pwm_lowerhalf_s *lower_half = NULL; /* lower-half handle */
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/* The underlying CorePWM driver "knows" there are up to 16 channels
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* available for each timer device, so we don't have to do anything
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* special here.
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*/
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#ifdef CONFIG_MPFS_COREPWM0
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lower_half = mpfs_corepwm_init(0);
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/* If we can't get the lower-half handle, skip and keep going. */
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if (lower_half)
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{
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/* Translate the peripheral number to a device name. */
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pwm_register("/dev/corepwm0", lower_half);
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}
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#endif
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#ifdef CONFIG_MPFS_COREPWM1
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lower_half = mpfs_corepwm_init(1);
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/* If we can't get the lower-half handle, skip and keep going. */
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if (lower_half)
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{
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/* Translate the peripheral number to a device name. */
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pwm_register("/dev/corepwm1", lower_half);
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}
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#endif
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return 0;
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}
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