PHung Tung / DISCO-F746_WAV_PLAYER

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Dependencies:   F746_GUI SD_PlayerSkeleton F746_SAI_IO

SRC_STM32F7/hal/dma_api.h@0:8ede47d38d10, 2019-06-04 (annotated)

Committer:
phungductung
Date:
Tue Jun 04 21:37:21 2019 +0000
Revision:
0:8ede47d38d10
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phungductung 0:8ede47d38d10 1 /* mbed Microcontroller Library
phungductung 0:8ede47d38d10 2 * Copyright (c) 2014-2015 ARM Limited
phungductung 0:8ede47d38d10 3 *
phungductung 0:8ede47d38d10 4 * Licensed under the Apache License, Version 2.0 (the "License");
phungductung 0:8ede47d38d10 5 * you may not use this file except in compliance with the License.
phungductung 0:8ede47d38d10 6 * You may obtain a copy of the License at
phungductung 0:8ede47d38d10 7 *
phungductung 0:8ede47d38d10 8 * http://www.apache.org/licenses/LICENSE-2.0
phungductung 0:8ede47d38d10 9 *
phungductung 0:8ede47d38d10 10 * Unless required by applicable law or agreed to in writing, software
phungductung 0:8ede47d38d10 11 * distributed under the License is distributed on an "AS IS" BASIS,
phungductung 0:8ede47d38d10 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
phungductung 0:8ede47d38d10 13 * See the License for the specific language governing permissions and
phungductung 0:8ede47d38d10 14 * limitations under the License.
phungductung 0:8ede47d38d10 15 */
phungductung 0:8ede47d38d10 16 #ifndef MBED_DMA_API_H
phungductung 0:8ede47d38d10 17 #define MBED_DMA_API_H
phungductung 0:8ede47d38d10 18
phungductung 0:8ede47d38d10 19 #include <stdint.h>
phungductung 0:8ede47d38d10 20
phungductung 0:8ede47d38d10 21 #define DMA_ERROR_OUT_OF_CHANNELS (-1)
phungductung 0:8ede47d38d10 22
phungductung 0:8ede47d38d10 23 typedef enum {
phungductung 0:8ede47d38d10 24 DMA_USAGE_NEVER,
phungductung 0:8ede47d38d10 25 DMA_USAGE_OPPORTUNISTIC,
phungductung 0:8ede47d38d10 26 DMA_USAGE_ALWAYS,
phungductung 0:8ede47d38d10 27 DMA_USAGE_TEMPORARY_ALLOCATED,
phungductung 0:8ede47d38d10 28 DMA_USAGE_ALLOCATED
phungductung 0:8ede47d38d10 29 } DMAUsage;
phungductung 0:8ede47d38d10 30
phungductung 0:8ede47d38d10 31 #ifdef __cplusplus
phungductung 0:8ede47d38d10 32 extern "C" {
phungductung 0:8ede47d38d10 33 #endif
phungductung 0:8ede47d38d10 34
phungductung 0:8ede47d38d10 35 void dma_init(void);
phungductung 0:8ede47d38d10 36
phungductung 0:8ede47d38d10 37 int dma_channel_allocate(uint32_t capabilities);
phungductung 0:8ede47d38d10 38
phungductung 0:8ede47d38d10 39 int dma_channel_free(int channelid);
phungductung 0:8ede47d38d10 40
phungductung 0:8ede47d38d10 41 #ifdef __cplusplus
phungductung 0:8ede47d38d10 42 }
phungductung 0:8ede47d38d10 43 #endif
phungductung 0:8ede47d38d10 44
phungductung 0:8ede47d38d10 45 #endif