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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_EFM32PG12_STK3402/TARGET_Silicon_Labs/TARGET_EFM32/dma_api_HAL.h@143:86740a56073b, 2017-05-26 (annotated)

Committer:
AnnaBridge
Date:
Fri May 26 12:30:20 2017 +0100
Revision:
143:86740a56073b
Parent:
139:856d2700e60b
Child:
159:7130f322cb7e
Release 143 of the mbed library.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 139:856d2700e60b 1 /***************************************************************************//**
<> 139:856d2700e60b 2 * @file dma_api_HAL.h
<> 139:856d2700e60b 3 *******************************************************************************
<> 139:856d2700e60b 4 * @section License
<> 139:856d2700e60b 5 * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
<> 139:856d2700e60b 6 *******************************************************************************
<> 139:856d2700e60b 7 *
<> 139:856d2700e60b 8 * SPDX-License-Identifier: Apache-2.0
<> 139:856d2700e60b 9 *
<> 139:856d2700e60b 10 * Licensed under the Apache License, Version 2.0 (the "License"); you may
<> 139:856d2700e60b 11 * not use this file except in compliance with the License.
<> 139:856d2700e60b 12 * You may obtain a copy of the License at
<> 139:856d2700e60b 13 *
<> 139:856d2700e60b 14 * http://www.apache.org/licenses/LICENSE-2.0
<> 139:856d2700e60b 15 *
<> 139:856d2700e60b 16 * Unless required by applicable law or agreed to in writing, software
<> 139:856d2700e60b 17 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
<> 139:856d2700e60b 18 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<> 139:856d2700e60b 19 * See the License for the specific language governing permissions and
<> 139:856d2700e60b 20 * limitations under the License.
<> 139:856d2700e60b 21 *
<> 139:856d2700e60b 22 ******************************************************************************/
<> 139:856d2700e60b 23
<> 139:856d2700e60b 24 #ifndef MBED_DMA_API_HAL_H
<> 139:856d2700e60b 25 #define MBED_DMA_API_HAL_H
<> 139:856d2700e60b 26
<> 139:856d2700e60b 27 #include <stdint.h>
<> 139:856d2700e60b 28 #include "dma_api.h"
<> 139:856d2700e60b 29 #include "em_device.h"
<> 139:856d2700e60b 30
<> 139:856d2700e60b 31 #ifdef DMA_PRESENT
<> 139:856d2700e60b 32 #include "em_dma.h"
<> 139:856d2700e60b 33 #endif
<> 139:856d2700e60b 34
<> 139:856d2700e60b 35 #ifdef LDMA_PRESENT
<> 139:856d2700e60b 36 #include "em_ldma.h"
<> 139:856d2700e60b 37 #endif
<> 139:856d2700e60b 38
<> 139:856d2700e60b 39 #ifdef __cplusplus
<> 139:856d2700e60b 40 extern "C" {
<> 139:856d2700e60b 41 #endif
<> 139:856d2700e60b 42
<> 139:856d2700e60b 43 /* Purpose of this file: extend dma_api.h to include EFM-specific DMA attributes */
<> 139:856d2700e60b 44
<> 139:856d2700e60b 45 #define DMA_CAP_2DCOPY (1 << 0)
<> 139:856d2700e60b 46 #define DMA_CAP_NONE (0 << 0)
<> 139:856d2700e60b 47
<> 139:856d2700e60b 48 #if ( DMA_CHAN_COUNT <= 4 )
<> 139:856d2700e60b 49 #define DMACTRL_CH_CNT 4
<> 139:856d2700e60b 50 #define DMACTRL_ALIGNMENT 256
<> 139:856d2700e60b 51
<> 139:856d2700e60b 52 #elif ( ( DMA_CHAN_COUNT > 4 ) && ( DMA_CHAN_COUNT <= 8 ) )
<> 139:856d2700e60b 53 #define DMACTRL_CH_CNT 8
<> 139:856d2700e60b 54 #define DMACTRL_ALIGNMENT 256
<> 139:856d2700e60b 55
<> 139:856d2700e60b 56 #elif ( ( DMA_CHAN_COUNT > 8 ) && ( DMA_CHAN_COUNT <= 16 ) )
<> 139:856d2700e60b 57 #define DMACTRL_CH_CNT 16
<> 139:856d2700e60b 58 #define DMACTRL_ALIGNMENT 512
<> 139:856d2700e60b 59
<> 139:856d2700e60b 60 #else
<> 139:856d2700e60b 61 #error "Unsupported DMA channel count (dma_api.c)."
<> 139:856d2700e60b 62 #endif
<> 139:856d2700e60b 63
<> 139:856d2700e60b 64 #ifdef LDMA_PRESENT
<> 139:856d2700e60b 65 typedef void (*LDMAx_CBFunc_t)(unsigned int channel, bool primary, void *user);
<> 139:856d2700e60b 66
<> 139:856d2700e60b 67 typedef struct
<> 139:856d2700e60b 68 {
<> 139:856d2700e60b 69 LDMAx_CBFunc_t cbFunc;
<> 139:856d2700e60b 70 void *userPtr;
<> 139:856d2700e60b 71 } LDMAx_Callback_t;
<> 139:856d2700e60b 72
<> 139:856d2700e60b 73 void LDMAx_StartTransfer( int ch,
<> 139:856d2700e60b 74 LDMA_TransferCfg_t *transfer,
<> 139:856d2700e60b 75 LDMA_Descriptor_t *descriptor,
<> 139:856d2700e60b 76 LDMAx_CBFunc_t cbFunc,
<> 139:856d2700e60b 77 void *userData );
<> 139:856d2700e60b 78 bool LDMAx_ChannelEnabled( int ch );
<> 139:856d2700e60b 79 #endif
<> 139:856d2700e60b 80
<> 139:856d2700e60b 81 typedef struct {
<> 139:856d2700e60b 82 DMAUsage dmaUsageState;
<> 139:856d2700e60b 83 int dmaChannel;
<> 139:856d2700e60b 84 #ifndef LDMA_PRESENT
<> 139:856d2700e60b 85 DMA_CB_TypeDef dmaCallback;
<> 139:856d2700e60b 86 #else
<> 139:856d2700e60b 87 LDMAx_Callback_t dmaCallback;
<> 139:856d2700e60b 88 #endif
<> 139:856d2700e60b 89 } DMA_OPTIONS_t;
<> 139:856d2700e60b 90
<> 139:856d2700e60b 91 typedef void (*DMACallback)(void);
<> 139:856d2700e60b 92
<> 139:856d2700e60b 93 extern DMA_DESCRIPTOR_TypeDef dmaControlBlock[];
<> 139:856d2700e60b 94
<> 139:856d2700e60b 95 #ifdef __cplusplus
<> 139:856d2700e60b 96 }
<> 139:856d2700e60b 97 #endif
<> 139:856d2700e60b 98
<> 139:856d2700e60b 99 #endif