Marco Zecchini / Mbed OS Example_RTOS

Rtos API example

mbed-os/hal/dma_api.h@0:9fca2b23d0ba, 2019-02-23 (annotated)

Committer:
marcozecchini
Date:
Sat Feb 23 12:13:36 2019 +0000
Revision:
0:9fca2b23d0ba
final commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
marcozecchini 0:9fca2b23d0ba 1
marcozecchini 0:9fca2b23d0ba 2 /** \addtogroup hal */
marcozecchini 0:9fca2b23d0ba 3 /** @{*/
marcozecchini 0:9fca2b23d0ba 4 /* mbed Microcontroller Library
marcozecchini 0:9fca2b23d0ba 5 * Copyright (c) 2014-2015 ARM Limited
marcozecchini 0:9fca2b23d0ba 6 *
marcozecchini 0:9fca2b23d0ba 7 * Licensed under the Apache License, Version 2.0 (the "License");
marcozecchini 0:9fca2b23d0ba 8 * you may not use this file except in compliance with the License.
marcozecchini 0:9fca2b23d0ba 9 * You may obtain a copy of the License at
marcozecchini 0:9fca2b23d0ba 10 *
marcozecchini 0:9fca2b23d0ba 11 * http://www.apache.org/licenses/LICENSE-2.0
marcozecchini 0:9fca2b23d0ba 12 *
marcozecchini 0:9fca2b23d0ba 13 * Unless required by applicable law or agreed to in writing, software
marcozecchini 0:9fca2b23d0ba 14 * distributed under the License is distributed on an "AS IS" BASIS,
marcozecchini 0:9fca2b23d0ba 15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
marcozecchini 0:9fca2b23d0ba 16 * See the License for the specific language governing permissions and
marcozecchini 0:9fca2b23d0ba 17 * limitations under the License.
marcozecchini 0:9fca2b23d0ba 18 */
marcozecchini 0:9fca2b23d0ba 19 #ifndef MBED_DMA_API_H
marcozecchini 0:9fca2b23d0ba 20 #define MBED_DMA_API_H
marcozecchini 0:9fca2b23d0ba 21
marcozecchini 0:9fca2b23d0ba 22 #include <stdint.h>
marcozecchini 0:9fca2b23d0ba 23
marcozecchini 0:9fca2b23d0ba 24 #define DMA_ERROR_OUT_OF_CHANNELS (-1)
marcozecchini 0:9fca2b23d0ba 25
marcozecchini 0:9fca2b23d0ba 26 typedef enum {
marcozecchini 0:9fca2b23d0ba 27 DMA_USAGE_NEVER,
marcozecchini 0:9fca2b23d0ba 28 DMA_USAGE_OPPORTUNISTIC,
marcozecchini 0:9fca2b23d0ba 29 DMA_USAGE_ALWAYS,
marcozecchini 0:9fca2b23d0ba 30 DMA_USAGE_TEMPORARY_ALLOCATED,
marcozecchini 0:9fca2b23d0ba 31 DMA_USAGE_ALLOCATED
marcozecchini 0:9fca2b23d0ba 32 } DMAUsage;
marcozecchini 0:9fca2b23d0ba 33
marcozecchini 0:9fca2b23d0ba 34 #ifdef __cplusplus
marcozecchini 0:9fca2b23d0ba 35 extern "C" {
marcozecchini 0:9fca2b23d0ba 36 #endif
marcozecchini 0:9fca2b23d0ba 37
marcozecchini 0:9fca2b23d0ba 38 void dma_init(void);
marcozecchini 0:9fca2b23d0ba 39
marcozecchini 0:9fca2b23d0ba 40 int dma_channel_allocate(uint32_t capabilities);
marcozecchini 0:9fca2b23d0ba 41
marcozecchini 0:9fca2b23d0ba 42 int dma_channel_free(int channelid);
marcozecchini 0:9fca2b23d0ba 43
marcozecchini 0:9fca2b23d0ba 44 #ifdef __cplusplus
marcozecchini 0:9fca2b23d0ba 45 }
marcozecchini 0:9fca2b23d0ba 46 #endif
marcozecchini 0:9fca2b23d0ba 47
marcozecchini 0:9fca2b23d0ba 48 #endif
marcozecchini 0:9fca2b23d0ba 49
marcozecchini 0:9fca2b23d0ba 50 /** @}*/