Gan likun / The prosthetic control

The prosthetic control（MIT）

hal/dma_api.h@0:20e0c61e0684, 2022-06-23 (annotated)

Committer:
ganlikun
Date:
Thu Jun 23 05:23:34 2022 +0000
Revision:
0:20e0c61e0684
01

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ganlikun 0:20e0c61e0684 1
ganlikun 0:20e0c61e0684 2 /** \addtogroup hal */
ganlikun 0:20e0c61e0684 3 /** @{*/
ganlikun 0:20e0c61e0684 4 /* mbed Microcontroller Library
ganlikun 0:20e0c61e0684 5 * Copyright (c) 2014-2015 ARM Limited
ganlikun 0:20e0c61e0684 6 *
ganlikun 0:20e0c61e0684 7 * Licensed under the Apache License, Version 2.0 (the "License");
ganlikun 0:20e0c61e0684 8 * you may not use this file except in compliance with the License.
ganlikun 0:20e0c61e0684 9 * You may obtain a copy of the License at
ganlikun 0:20e0c61e0684 10 *
ganlikun 0:20e0c61e0684 11 * http://www.apache.org/licenses/LICENSE-2.0
ganlikun 0:20e0c61e0684 12 *
ganlikun 0:20e0c61e0684 13 * Unless required by applicable law or agreed to in writing, software
ganlikun 0:20e0c61e0684 14 * distributed under the License is distributed on an "AS IS" BASIS,
ganlikun 0:20e0c61e0684 15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
ganlikun 0:20e0c61e0684 16 * See the License for the specific language governing permissions and
ganlikun 0:20e0c61e0684 17 * limitations under the License.
ganlikun 0:20e0c61e0684 18 */
ganlikun 0:20e0c61e0684 19 #ifndef MBED_DMA_API_H
ganlikun 0:20e0c61e0684 20 #define MBED_DMA_API_H
ganlikun 0:20e0c61e0684 21
ganlikun 0:20e0c61e0684 22 #include <stdint.h>
ganlikun 0:20e0c61e0684 23
ganlikun 0:20e0c61e0684 24 #define DMA_ERROR_OUT_OF_CHANNELS (-1)
ganlikun 0:20e0c61e0684 25
ganlikun 0:20e0c61e0684 26 typedef enum {
ganlikun 0:20e0c61e0684 27 DMA_USAGE_NEVER,
ganlikun 0:20e0c61e0684 28 DMA_USAGE_OPPORTUNISTIC,
ganlikun 0:20e0c61e0684 29 DMA_USAGE_ALWAYS,
ganlikun 0:20e0c61e0684 30 DMA_USAGE_TEMPORARY_ALLOCATED,
ganlikun 0:20e0c61e0684 31 DMA_USAGE_ALLOCATED
ganlikun 0:20e0c61e0684 32 } DMAUsage;
ganlikun 0:20e0c61e0684 33
ganlikun 0:20e0c61e0684 34 #ifdef __cplusplus
ganlikun 0:20e0c61e0684 35 extern "C" {
ganlikun 0:20e0c61e0684 36 #endif
ganlikun 0:20e0c61e0684 37
ganlikun 0:20e0c61e0684 38 void dma_init(void);
ganlikun 0:20e0c61e0684 39
ganlikun 0:20e0c61e0684 40 int dma_channel_allocate(uint32_t capabilities);
ganlikun 0:20e0c61e0684 41
ganlikun 0:20e0c61e0684 42 int dma_channel_free(int channelid);
ganlikun 0:20e0c61e0684 43
ganlikun 0:20e0c61e0684 44 #ifdef __cplusplus
ganlikun 0:20e0c61e0684 45 }
ganlikun 0:20e0c61e0684 46 #endif
ganlikun 0:20e0c61e0684 47
ganlikun 0:20e0c61e0684 48 #endif
ganlikun 0:20e0c61e0684 49
ganlikun 0:20e0c61e0684 50 /** @}*/
ganlikun 0:20e0c61e0684 51