mbed official / mbed

The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

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mbed 2

This is the mbed 2 library. If you'd like to learn about Mbed OS please see the mbed-os docs.

hal/dma_api.h@147:a97add6d7e64, 2017-07-19 (annotated)

Committer:
Kojto
Date:
Wed Jul 19 16:46:19 2017 +0100
Revision:
147:a97add6d7e64
Parent:
128:9bcdf88f62b0
Child:
172:65be27845400
Release 147 of the mbed library.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 128:9bcdf88f62b0 1
<> 128:9bcdf88f62b0 2 /** \addtogroup hal */
<> 128:9bcdf88f62b0 3 /** @{*/
<> 128:9bcdf88f62b0 4 /* mbed Microcontroller Library
<> 128:9bcdf88f62b0 5 * Copyright (c) 2014-2015 ARM Limited
<> 128:9bcdf88f62b0 6 *
<> 128:9bcdf88f62b0 7 * Licensed under the Apache License, Version 2.0 (the "License");
<> 128:9bcdf88f62b0 8 * you may not use this file except in compliance with the License.
<> 128:9bcdf88f62b0 9 * You may obtain a copy of the License at
<> 128:9bcdf88f62b0 10 *
<> 128:9bcdf88f62b0 11 * http://www.apache.org/licenses/LICENSE-2.0
<> 128:9bcdf88f62b0 12 *
<> 128:9bcdf88f62b0 13 * Unless required by applicable law or agreed to in writing, software
<> 128:9bcdf88f62b0 14 * distributed under the License is distributed on an "AS IS" BASIS,
<> 128:9bcdf88f62b0 15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<> 128:9bcdf88f62b0 16 * See the License for the specific language governing permissions and
<> 128:9bcdf88f62b0 17 * limitations under the License.
<> 128:9bcdf88f62b0 18 */
<> 128:9bcdf88f62b0 19 #ifndef MBED_DMA_API_H
<> 128:9bcdf88f62b0 20 #define MBED_DMA_API_H
<> 128:9bcdf88f62b0 21
<> 128:9bcdf88f62b0 22 #include <stdint.h>
<> 128:9bcdf88f62b0 23
<> 128:9bcdf88f62b0 24 #define DMA_ERROR_OUT_OF_CHANNELS (-1)
<> 128:9bcdf88f62b0 25
<> 128:9bcdf88f62b0 26 typedef enum {
<> 128:9bcdf88f62b0 27 DMA_USAGE_NEVER,
<> 128:9bcdf88f62b0 28 DMA_USAGE_OPPORTUNISTIC,
<> 128:9bcdf88f62b0 29 DMA_USAGE_ALWAYS,
<> 128:9bcdf88f62b0 30 DMA_USAGE_TEMPORARY_ALLOCATED,
<> 128:9bcdf88f62b0 31 DMA_USAGE_ALLOCATED
<> 128:9bcdf88f62b0 32 } DMAUsage;
<> 128:9bcdf88f62b0 33
<> 128:9bcdf88f62b0 34 #ifdef __cplusplus
<> 128:9bcdf88f62b0 35 extern "C" {
<> 128:9bcdf88f62b0 36 #endif
<> 128:9bcdf88f62b0 37
<> 128:9bcdf88f62b0 38 void dma_init(void);
<> 128:9bcdf88f62b0 39
<> 128:9bcdf88f62b0 40 int dma_channel_allocate(uint32_t capabilities);
<> 128:9bcdf88f62b0 41
<> 128:9bcdf88f62b0 42 int dma_channel_free(int channelid);
<> 128:9bcdf88f62b0 43
<> 128:9bcdf88f62b0 44 #ifdef __cplusplus
<> 128:9bcdf88f62b0 45 }
<> 128:9bcdf88f62b0 46 #endif
<> 128:9bcdf88f62b0 47
<> 128:9bcdf88f62b0 48 #endif
<> 128:9bcdf88f62b0 49
<> 128:9bcdf88f62b0 50 /** @}*/