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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?
User | Revision | Line number | New 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 | /** @}*/ |