Takaaki Numai / mbed-dev

inport from local

Dependents:   Hobbyking_Cheetah_0511

hal/dma_api.h@0:85b3fd62ea1a, 2020-03-16 (annotated)

Committer:
NYX
Date:
Mon Mar 16 06:35:48 2020 +0000
Revision:
0:85b3fd62ea1a
reinport to mbed;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
NYX 0:85b3fd62ea1a 1
NYX 0:85b3fd62ea1a 2 /** \addtogroup hal */
NYX 0:85b3fd62ea1a 3 /** @{*/
NYX 0:85b3fd62ea1a 4 /* mbed Microcontroller Library
NYX 0:85b3fd62ea1a 5 * Copyright (c) 2014-2015 ARM Limited
NYX 0:85b3fd62ea1a 6 *
NYX 0:85b3fd62ea1a 7 * Licensed under the Apache License, Version 2.0 (the "License");
NYX 0:85b3fd62ea1a 8 * you may not use this file except in compliance with the License.
NYX 0:85b3fd62ea1a 9 * You may obtain a copy of the License at
NYX 0:85b3fd62ea1a 10 *
NYX 0:85b3fd62ea1a 11 * http://www.apache.org/licenses/LICENSE-2.0
NYX 0:85b3fd62ea1a 12 *
NYX 0:85b3fd62ea1a 13 * Unless required by applicable law or agreed to in writing, software
NYX 0:85b3fd62ea1a 14 * distributed under the License is distributed on an "AS IS" BASIS,
NYX 0:85b3fd62ea1a 15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
NYX 0:85b3fd62ea1a 16 * See the License for the specific language governing permissions and
NYX 0:85b3fd62ea1a 17 * limitations under the License.
NYX 0:85b3fd62ea1a 18 */
NYX 0:85b3fd62ea1a 19 #ifndef MBED_DMA_API_H
NYX 0:85b3fd62ea1a 20 #define MBED_DMA_API_H
NYX 0:85b3fd62ea1a 21
NYX 0:85b3fd62ea1a 22 #include <stdint.h>
NYX 0:85b3fd62ea1a 23
NYX 0:85b3fd62ea1a 24 #define DMA_ERROR_OUT_OF_CHANNELS (-1)
NYX 0:85b3fd62ea1a 25
NYX 0:85b3fd62ea1a 26 typedef enum {
NYX 0:85b3fd62ea1a 27 DMA_USAGE_NEVER,
NYX 0:85b3fd62ea1a 28 DMA_USAGE_OPPORTUNISTIC,
NYX 0:85b3fd62ea1a 29 DMA_USAGE_ALWAYS,
NYX 0:85b3fd62ea1a 30 DMA_USAGE_TEMPORARY_ALLOCATED,
NYX 0:85b3fd62ea1a 31 DMA_USAGE_ALLOCATED
NYX 0:85b3fd62ea1a 32 } DMAUsage;
NYX 0:85b3fd62ea1a 33
NYX 0:85b3fd62ea1a 34 #ifdef __cplusplus
NYX 0:85b3fd62ea1a 35 extern "C" {
NYX 0:85b3fd62ea1a 36 #endif
NYX 0:85b3fd62ea1a 37
NYX 0:85b3fd62ea1a 38 void dma_init(void);
NYX 0:85b3fd62ea1a 39
NYX 0:85b3fd62ea1a 40 int dma_channel_allocate(uint32_t capabilities);
NYX 0:85b3fd62ea1a 41
NYX 0:85b3fd62ea1a 42 int dma_channel_free(int channelid);
NYX 0:85b3fd62ea1a 43
NYX 0:85b3fd62ea1a 44 #ifdef __cplusplus
NYX 0:85b3fd62ea1a 45 }
NYX 0:85b3fd62ea1a 46 #endif
NYX 0:85b3fd62ea1a 47
NYX 0:85b3fd62ea1a 48 #endif
NYX 0:85b3fd62ea1a 49
NYX 0:85b3fd62ea1a 50 /** @}*/