nguyen nam / SRC_STM32F7

SPKT

Dependents:   Player

hal/dma_api.h@0:e87aa4c49e95, 2019-06-04 (annotated)

Committer:
phungductung
Date:
Tue Jun 04 21:51:46 2019 +0000
Revision:
0:e87aa4c49e95
libray

Who changed what in which revision?

UserRevisionLine numberNew contents of line
phungductung 0:e87aa4c49e95 1 /* mbed Microcontroller Library
phungductung 0:e87aa4c49e95 2 * Copyright (c) 2014-2015 ARM Limited
phungductung 0:e87aa4c49e95 3 *
phungductung 0:e87aa4c49e95 4 * Licensed under the Apache License, Version 2.0 (the "License");
phungductung 0:e87aa4c49e95 5 * you may not use this file except in compliance with the License.
phungductung 0:e87aa4c49e95 6 * You may obtain a copy of the License at
phungductung 0:e87aa4c49e95 7 *
phungductung 0:e87aa4c49e95 8 * http://www.apache.org/licenses/LICENSE-2.0
phungductung 0:e87aa4c49e95 9 *
phungductung 0:e87aa4c49e95 10 * Unless required by applicable law or agreed to in writing, software
phungductung 0:e87aa4c49e95 11 * distributed under the License is distributed on an "AS IS" BASIS,
phungductung 0:e87aa4c49e95 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
phungductung 0:e87aa4c49e95 13 * See the License for the specific language governing permissions and
phungductung 0:e87aa4c49e95 14 * limitations under the License.
phungductung 0:e87aa4c49e95 15 */
phungductung 0:e87aa4c49e95 16 #ifndef MBED_DMA_API_H
phungductung 0:e87aa4c49e95 17 #define MBED_DMA_API_H
phungductung 0:e87aa4c49e95 18
phungductung 0:e87aa4c49e95 19 #include <stdint.h>
phungductung 0:e87aa4c49e95 20
phungductung 0:e87aa4c49e95 21 #define DMA_ERROR_OUT_OF_CHANNELS (-1)
phungductung 0:e87aa4c49e95 22
phungductung 0:e87aa4c49e95 23 typedef enum {
phungductung 0:e87aa4c49e95 24 DMA_USAGE_NEVER,
phungductung 0:e87aa4c49e95 25 DMA_USAGE_OPPORTUNISTIC,
phungductung 0:e87aa4c49e95 26 DMA_USAGE_ALWAYS,
phungductung 0:e87aa4c49e95 27 DMA_USAGE_TEMPORARY_ALLOCATED,
phungductung 0:e87aa4c49e95 28 DMA_USAGE_ALLOCATED
phungductung 0:e87aa4c49e95 29 } DMAUsage;
phungductung 0:e87aa4c49e95 30
phungductung 0:e87aa4c49e95 31 #ifdef __cplusplus
phungductung 0:e87aa4c49e95 32 extern "C" {
phungductung 0:e87aa4c49e95 33 #endif
phungductung 0:e87aa4c49e95 34
phungductung 0:e87aa4c49e95 35 void dma_init(void);
phungductung 0:e87aa4c49e95 36
phungductung 0:e87aa4c49e95 37 int dma_channel_allocate(uint32_t capabilities);
phungductung 0:e87aa4c49e95 38
phungductung 0:e87aa4c49e95 39 int dma_channel_free(int channelid);
phungductung 0:e87aa4c49e95 40
phungductung 0:e87aa4c49e95 41 #ifdef __cplusplus
phungductung 0:e87aa4c49e95 42 }
phungductung 0:e87aa4c49e95 43 #endif
phungductung 0:e87aa4c49e95 44
phungductung 0:e87aa4c49e95 45 #endif