Hiroh Satoh / mbed-dev

mbed library sources. Supersedes mbed-src.

Dependents:   keyboard

Fork of mbed-dev by mbed official

hal/dma_api.h@144:56ef597cc9e4, 2016-08-17 (annotated)

Committer:
cho45
Date:
Wed Aug 17 00:54:41 2016 +0000
Revision:
144:56ef597cc9e4
Parent:
0:9b334a45a8ff 
ignore error; https://devzone.nordicsemi.com/question/88239/struct-has-no-field-nrffw/?answer=88247#post-id-88247

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 0:9b334a45a8ff 1 /* mbed Microcontroller Library
bogdanm 0:9b334a45a8ff 2 * Copyright (c) 2014-2015 ARM Limited
bogdanm 0:9b334a45a8ff 3 *
bogdanm 0:9b334a45a8ff 4 * Licensed under the Apache License, Version 2.0 (the "License");
bogdanm 0:9b334a45a8ff 5 * you may not use this file except in compliance with the License.
bogdanm 0:9b334a45a8ff 6 * You may obtain a copy of the License at
bogdanm 0:9b334a45a8ff 7 *
bogdanm 0:9b334a45a8ff 8 * http://www.apache.org/licenses/LICENSE-2.0
bogdanm 0:9b334a45a8ff 9 *
bogdanm 0:9b334a45a8ff 10 * Unless required by applicable law or agreed to in writing, software
bogdanm 0:9b334a45a8ff 11 * distributed under the License is distributed on an "AS IS" BASIS,
bogdanm 0:9b334a45a8ff 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
bogdanm 0:9b334a45a8ff 13 * See the License for the specific language governing permissions and
bogdanm 0:9b334a45a8ff 14 * limitations under the License.
bogdanm 0:9b334a45a8ff 15 */
bogdanm 0:9b334a45a8ff 16 #ifndef MBED_DMA_API_H
bogdanm 0:9b334a45a8ff 17 #define MBED_DMA_API_H
bogdanm 0:9b334a45a8ff 18
bogdanm 0:9b334a45a8ff 19 #include <stdint.h>
bogdanm 0:9b334a45a8ff 20
bogdanm 0:9b334a45a8ff 21 #define DMA_ERROR_OUT_OF_CHANNELS (-1)
bogdanm 0:9b334a45a8ff 22
bogdanm 0:9b334a45a8ff 23 typedef enum {
bogdanm 0:9b334a45a8ff 24 DMA_USAGE_NEVER,
bogdanm 0:9b334a45a8ff 25 DMA_USAGE_OPPORTUNISTIC,
bogdanm 0:9b334a45a8ff 26 DMA_USAGE_ALWAYS,
bogdanm 0:9b334a45a8ff 27 DMA_USAGE_TEMPORARY_ALLOCATED,
bogdanm 0:9b334a45a8ff 28 DMA_USAGE_ALLOCATED
bogdanm 0:9b334a45a8ff 29 } DMAUsage;
bogdanm 0:9b334a45a8ff 30
bogdanm 0:9b334a45a8ff 31 #ifdef __cplusplus
bogdanm 0:9b334a45a8ff 32 extern "C" {
bogdanm 0:9b334a45a8ff 33 #endif
bogdanm 0:9b334a45a8ff 34
bogdanm 0:9b334a45a8ff 35 void dma_init(void);
bogdanm 0:9b334a45a8ff 36
bogdanm 0:9b334a45a8ff 37 int dma_channel_allocate(uint32_t capabilities);
bogdanm 0:9b334a45a8ff 38
bogdanm 0:9b334a45a8ff 39 int dma_channel_free(int channelid);
bogdanm 0:9b334a45a8ff 40
bogdanm 0:9b334a45a8ff 41 #ifdef __cplusplus
bogdanm 0:9b334a45a8ff 42 }
bogdanm 0:9b334a45a8ff 43 #endif
bogdanm 0:9b334a45a8ff 44
bogdanm 0:9b334a45a8ff 45 #endif