145 lines
4.4 KiB
C
145 lines
4.4 KiB
C
/****************************************************************************
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* arch/arm/src/samd2l2/sam_gclk.h
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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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#ifndef __ARCH_ARM_SRC_SAMD2L2_SAM_GCLK_H
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#define __ARCH_ARM_SRC_SAMD2L2_SAM_GCLK_H
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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 <stdint.h>
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#include <stdbool.h>
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#include "sam_config.h"
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#if defined(CONFIG_ARCH_FAMILY_SAMD20) || defined(CONFIG_ARCH_FAMILY_SAMD21)
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# include "hardware/samd_gclk.h"
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#elif defined(CONFIG_ARCH_FAMILY_SAML21)
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# include "hardware/saml_gclk.h"
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#else
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# error Unrecognized SAMD/L architecture
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#endif
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/****************************************************************************
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* Public Types
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****************************************************************************/
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#ifndef __ASSEMBLY__
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/* This structure describes the configuration of one GCLK */
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struct sam_gclkconfig_s
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{
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uint8_t gclk; /* Clock generator */
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bool runstandby; /* Run clock in standby */
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bool output; /* Output enable */
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uint8_t clksrc; /* Encoded clock source */
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uint16_t prescaler; /* Prescaler value */
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};
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/****************************************************************************
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* Inline Functions
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****************************************************************************/
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/****************************************************************************
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* Public Data
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****************************************************************************/
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#undef EXTERN
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#if defined(__cplusplus)
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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/****************************************************************************
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* Name: sam_gclk_config
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*
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* Description:
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* Configure a single GCLK(s) based on settings in the config structure.
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*
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* Input Parameters:
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* config - An instance of struct sam_gclkconfig describing the GCLK
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* configuration.
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*
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* Returned Value:
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* None
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*
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****************************************************************************/
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void sam_gclk_config(const struct sam_gclkconfig_s *config);
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/****************************************************************************
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* Name: sam_gclk_chan_enable
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*
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* Description:
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* Configure and enable a GCLK peripheral channel.
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*
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* Input Parameters:
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* channel - Index of the GCLK channel to be enabled
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* srcgen - The GCLK source generator index
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*
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* Returned Value:
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* None
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*
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****************************************************************************/
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#ifdef CONFIG_ARCH_FAMILY_SAML21
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void sam_gclk_chan_enable(uint8_t channel, uint8_t srcgen);
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#endif
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/****************************************************************************
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* Name: sam_gclk_chan_disable
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*
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* Description:
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* Disable a GCLK peripheral channel.
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*
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* Input Parameters:
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* channel - Index of the GCLK channel to be disabled
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*
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* Returned Value:
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* None
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*
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****************************************************************************/
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#ifdef CONFIG_ARCH_FAMILY_SAML21
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void sam_gclk_chan_disable(uint8_t channel);
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#endif
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#undef EXTERN
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#if defined(__cplusplus)
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}
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#endif
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#endif /* __ASSEMBLY__ */
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#endif /* __ARCH_ARM_SRC_SAMD2L2_SAM_GCLK_H */
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