mirror of https://github.com/ARMmbed/mbed-os.git
102 lines
2.6 KiB
C
102 lines
2.6 KiB
C
/***************************************************************************//**
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* @file dma_api_HAL.h
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*******************************************************************************
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* @section License
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* <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
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*******************************************************************************
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may
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* not use this file except in compliance with the License.
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* 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.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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******************************************************************************/
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#ifndef MBED_DMA_API_HAL_H
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#define MBED_DMA_API_HAL_H
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#include <stdint.h>
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#include "dma_api.h"
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#include "em_device.h"
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#ifdef DMA_PRESENT
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#include "em_dma.h"
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#endif
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#ifdef LDMA_PRESENT
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#include "em_ldma.h"
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Purpose of this file: extend dma_api.h to include EFM-specific DMA attributes */
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#define DMA_CAP_2DCOPY (1 << 0)
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#define DMA_CAP_NONE (0 << 0)
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#ifdef DMA_PRESENT
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#if ( DMA_CHAN_COUNT <= 4 )
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#define DMACTRL_CH_CNT 4
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#define DMACTRL_ALIGNMENT 256
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#elif ( ( DMA_CHAN_COUNT > 4 ) && ( DMA_CHAN_COUNT <= 8 ) )
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#define DMACTRL_CH_CNT 8
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#define DMACTRL_ALIGNMENT 256
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#elif ( ( DMA_CHAN_COUNT > 8 ) && ( DMA_CHAN_COUNT <= 16 ) )
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#define DMACTRL_CH_CNT 16
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#define DMACTRL_ALIGNMENT 512
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#else
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#error "Unsupported DMA channel count (dma_api.c)."
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#endif
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#endif
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#ifdef LDMA_PRESENT
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typedef void (*LDMAx_CBFunc_t)(unsigned int channel, bool primary, void *user);
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typedef struct
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{
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LDMAx_CBFunc_t cbFunc;
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void *userPtr;
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} LDMAx_Callback_t;
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void LDMAx_StartTransfer( int ch,
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LDMA_TransferCfg_t *transfer,
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LDMA_Descriptor_t *descriptor,
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LDMAx_CBFunc_t cbFunc,
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void *userData );
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bool LDMAx_ChannelEnabled( int ch );
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#endif
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typedef struct {
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DMAUsage dmaUsageState;
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int dmaChannel;
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#ifndef LDMA_PRESENT
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DMA_CB_TypeDef dmaCallback;
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#else
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LDMAx_Callback_t dmaCallback;
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#endif
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} DMA_OPTIONS_t;
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typedef void (*DMACallback)(void);
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extern DMA_DESCRIPTOR_TypeDef dmaControlBlock[];
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#ifdef __cplusplus
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}
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#endif
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#endif
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