119 lines
4.5 KiB
C
119 lines
4.5 KiB
C
/****************************************************************************
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* arch/x86_64/src/intel64/intel64_hpet.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_X86_64_SRC_INTEL64_INTEL64_HPET_H
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#define __ARCH_X86_64_SRC_INTEL64_INTEL64_HPET_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 <nuttx/compiler.h>
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#include <nuttx/irq.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Helpers ******************************************************************/
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#define INTEL64_TIM_ENABLE(d, e) ((d)->ops->enable(d, e))
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#define INTEL64_TIM_GETPERIOD(d) ((d)->ops->getperiod(d))
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#define INTEL64_TIM_GETCOUNTER(d) ((d)->ops->getcounter(d))
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#define INTEL64_TIM_SETCOUNTER(d, c) ((d)->ops->setcounter(d, c))
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#define INTEL64_TIM_SETCOMPARE(d, t, c) ((d)->ops->setcompare(d, t, c))
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#define INTEL64_TIM_GETCOMPARE(d, t) ((d)->ops->getcompare(d, t))
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#define INTEL64_TIM_GETINT(d, t) ((d)->ops->getint(d, t))
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#define INTEL64_TIM_ACKINT(d, t) ((d)->ops->ackint(d, t))
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#define INTEL64_TIM_SETISR(d, t, h, a, p) ((d)->ops->setisr(d, t, h, a, p))
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#define INTEL64_TIM_ENABLEINT(d, t) ((d)->ops->enableint(d, t))
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#define INTEL64_TIM_DISABLEINT(d, t) ((d)->ops->disableint(d, t))
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/****************************************************************************
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* Public Types
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****************************************************************************/
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/* TIM Device Structure */
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struct intel64_tim_ops_s;
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struct intel64_tim_dev_s
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{
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struct intel64_tim_ops_s *ops;
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};
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/* TIM Operations */
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struct intel64_tim_ops_s
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{
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void (*enable)(struct intel64_tim_dev_s *dev, bool en);
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uint32_t (*getperiod)(struct intel64_tim_dev_s *dev);
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uint64_t (*getcounter)(struct intel64_tim_dev_s *dev);
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void (*setcounter)(struct intel64_tim_dev_s *dev, uint64_t count);
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void (*setcompare)(struct intel64_tim_dev_s *dev, uint8_t timer,
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uint64_t compare);
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uint64_t (*getcompare)(struct intel64_tim_dev_s *dev, uint8_t timer);
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uint64_t (*getint)(struct intel64_tim_dev_s *dev, uint8_t timer);
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void (*ackint)(struct intel64_tim_dev_s *dev, uint8_t timer);
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int (*setisr)(struct intel64_tim_dev_s *dev, uint8_t timer,
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xcpt_t handler, void * arg, bool periodic);
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void (*enableint)(struct intel64_tim_dev_s *dev, uint8_t tim);
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void (*disableint)(struct intel64_tim_dev_s *dev, uint8_t tim);
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};
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/****************************************************************************
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* Inline Functions
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****************************************************************************/
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#ifndef __ASSEMBLY__
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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: intel64_hpet_init
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*
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* Description:
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* Initialize HPET timer with a given base address
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*
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****************************************************************************/
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struct intel64_tim_dev_s *intel64_hpet_init(uint64_t base);
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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_X86_64_SRC_INTEL64_INTEL64_HPET_H */
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