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The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

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mbed 2

This is the mbed 2 library. If you'd like to learn about Mbed OS please see the mbed-os docs.

TARGET_EFM32LG_STK3600/TARGET_Silicon_Labs/TARGET_EFM32/dma_api_HAL.h@157:e7ca05fa8600, 2017-11-09 (annotated)

Committer:
AnnaBridge
Date:
Thu Nov 09 11:14:10 2017 +0000
Revision:
157:e7ca05fa8600
Parent:
156:ff21514d8981
Child:
159:7130f322cb7e
Release 155 of the mbed library.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AnnaBridge 156:ff21514d8981 1 /***************************************************************************//**
AnnaBridge 156:ff21514d8981 2 * @file dma_api_HAL.h
AnnaBridge 156:ff21514d8981 3 *******************************************************************************
AnnaBridge 156:ff21514d8981 4 * @section License
AnnaBridge 156:ff21514d8981 5 * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
AnnaBridge 156:ff21514d8981 6 *******************************************************************************
AnnaBridge 156:ff21514d8981 7 *
AnnaBridge 156:ff21514d8981 8 * SPDX-License-Identifier: Apache-2.0
AnnaBridge 156:ff21514d8981 9 *
AnnaBridge 156:ff21514d8981 10 * Licensed under the Apache License, Version 2.0 (the "License"); you may
AnnaBridge 156:ff21514d8981 11 * not use this file except in compliance with the License.
AnnaBridge 156:ff21514d8981 12 * You may obtain a copy of the License at
AnnaBridge 156:ff21514d8981 13 *
AnnaBridge 156:ff21514d8981 14 * http://www.apache.org/licenses/LICENSE-2.0
AnnaBridge 156:ff21514d8981 15 *
AnnaBridge 156:ff21514d8981 16 * Unless required by applicable law or agreed to in writing, software
AnnaBridge 156:ff21514d8981 17 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
AnnaBridge 156:ff21514d8981 18 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
AnnaBridge 156:ff21514d8981 19 * See the License for the specific language governing permissions and
AnnaBridge 156:ff21514d8981 20 * limitations under the License.
AnnaBridge 156:ff21514d8981 21 *
AnnaBridge 156:ff21514d8981 22 ******************************************************************************/
AnnaBridge 156:ff21514d8981 23
AnnaBridge 156:ff21514d8981 24 #ifndef MBED_DMA_API_HAL_H
AnnaBridge 156:ff21514d8981 25 #define MBED_DMA_API_HAL_H
AnnaBridge 156:ff21514d8981 26
AnnaBridge 156:ff21514d8981 27 #include <stdint.h>
AnnaBridge 156:ff21514d8981 28 #include "dma_api.h"
AnnaBridge 156:ff21514d8981 29 #include "em_device.h"
AnnaBridge 156:ff21514d8981 30
AnnaBridge 156:ff21514d8981 31 #ifdef DMA_PRESENT
AnnaBridge 156:ff21514d8981 32 #include "em_dma.h"
AnnaBridge 156:ff21514d8981 33 #endif
AnnaBridge 156:ff21514d8981 34
AnnaBridge 156:ff21514d8981 35 #ifdef LDMA_PRESENT
AnnaBridge 156:ff21514d8981 36 #include "em_ldma.h"
AnnaBridge 156:ff21514d8981 37 #endif
AnnaBridge 156:ff21514d8981 38
AnnaBridge 156:ff21514d8981 39 #ifdef __cplusplus
AnnaBridge 156:ff21514d8981 40 extern "C" {
AnnaBridge 156:ff21514d8981 41 #endif
AnnaBridge 156:ff21514d8981 42
AnnaBridge 156:ff21514d8981 43 /* Purpose of this file: extend dma_api.h to include EFM-specific DMA attributes */
AnnaBridge 156:ff21514d8981 44
AnnaBridge 156:ff21514d8981 45 #define DMA_CAP_2DCOPY (1 << 0)
AnnaBridge 156:ff21514d8981 46 #define DMA_CAP_NONE (0 << 0)
AnnaBridge 156:ff21514d8981 47
AnnaBridge 156:ff21514d8981 48 #if ( DMA_CHAN_COUNT <= 4 )
AnnaBridge 156:ff21514d8981 49 #define DMACTRL_CH_CNT 4
AnnaBridge 156:ff21514d8981 50 #define DMACTRL_ALIGNMENT 256
AnnaBridge 156:ff21514d8981 51
AnnaBridge 156:ff21514d8981 52 #elif ( ( DMA_CHAN_COUNT > 4 ) && ( DMA_CHAN_COUNT <= 8 ) )
AnnaBridge 156:ff21514d8981 53 #define DMACTRL_CH_CNT 8
AnnaBridge 156:ff21514d8981 54 #define DMACTRL_ALIGNMENT 256
AnnaBridge 156:ff21514d8981 55
AnnaBridge 156:ff21514d8981 56 #elif ( ( DMA_CHAN_COUNT > 8 ) && ( DMA_CHAN_COUNT <= 16 ) )
AnnaBridge 156:ff21514d8981 57 #define DMACTRL_CH_CNT 16
AnnaBridge 156:ff21514d8981 58 #define DMACTRL_ALIGNMENT 512
AnnaBridge 156:ff21514d8981 59
AnnaBridge 156:ff21514d8981 60 #else
AnnaBridge 156:ff21514d8981 61 #error "Unsupported DMA channel count (dma_api.c)."
AnnaBridge 156:ff21514d8981 62 #endif
AnnaBridge 156:ff21514d8981 63
AnnaBridge 156:ff21514d8981 64 #ifdef LDMA_PRESENT
AnnaBridge 156:ff21514d8981 65 typedef void (*LDMAx_CBFunc_t)(unsigned int channel, bool primary, void *user);
AnnaBridge 156:ff21514d8981 66
AnnaBridge 156:ff21514d8981 67 typedef struct
AnnaBridge 156:ff21514d8981 68 {
AnnaBridge 156:ff21514d8981 69 LDMAx_CBFunc_t cbFunc;
AnnaBridge 156:ff21514d8981 70 void *userPtr;
AnnaBridge 156:ff21514d8981 71 } LDMAx_Callback_t;
AnnaBridge 156:ff21514d8981 72
AnnaBridge 156:ff21514d8981 73 void LDMAx_StartTransfer( int ch,
AnnaBridge 156:ff21514d8981 74 LDMA_TransferCfg_t *transfer,
AnnaBridge 156:ff21514d8981 75 LDMA_Descriptor_t *descriptor,
AnnaBridge 156:ff21514d8981 76 LDMAx_CBFunc_t cbFunc,
AnnaBridge 156:ff21514d8981 77 void *userData );
AnnaBridge 156:ff21514d8981 78 bool LDMAx_ChannelEnabled( int ch );
AnnaBridge 156:ff21514d8981 79 #endif
AnnaBridge 156:ff21514d8981 80
AnnaBridge 156:ff21514d8981 81 typedef struct {
AnnaBridge 156:ff21514d8981 82 DMAUsage dmaUsageState;
AnnaBridge 156:ff21514d8981 83 int dmaChannel;
AnnaBridge 156:ff21514d8981 84 #ifndef LDMA_PRESENT
AnnaBridge 156:ff21514d8981 85 DMA_CB_TypeDef dmaCallback;
AnnaBridge 156:ff21514d8981 86 #else
AnnaBridge 156:ff21514d8981 87 LDMAx_Callback_t dmaCallback;
AnnaBridge 156:ff21514d8981 88 #endif
AnnaBridge 156:ff21514d8981 89 } DMA_OPTIONS_t;
AnnaBridge 156:ff21514d8981 90
AnnaBridge 156:ff21514d8981 91 typedef void (*DMACallback)(void);
AnnaBridge 156:ff21514d8981 92
AnnaBridge 156:ff21514d8981 93 extern DMA_DESCRIPTOR_TypeDef dmaControlBlock[];
AnnaBridge 156:ff21514d8981 94
AnnaBridge 156:ff21514d8981 95 #ifdef __cplusplus
AnnaBridge 156:ff21514d8981 96 }
AnnaBridge 156:ff21514d8981 97 #endif
AnnaBridge 156:ff21514d8981 98
AnnaBridge 156:ff21514d8981 99 #endif