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mbed-dev/hal/dma_api.h@10:41552d038a69, 2017-01-10 (annotated)
- Committer:
- Zaitsev
- Date:
- Tue Jan 10 20:42:26 2017 +0000
- Revision:
- 10:41552d038a69
USB Serial bi-directional bridge
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
Zaitsev | 10:41552d038a69 | 1 | |
Zaitsev | 10:41552d038a69 | 2 | /** \addtogroup hal */ |
Zaitsev | 10:41552d038a69 | 3 | /** @{*/ |
Zaitsev | 10:41552d038a69 | 4 | /* mbed Microcontroller Library |
Zaitsev | 10:41552d038a69 | 5 | * Copyright (c) 2014-2015 ARM Limited |
Zaitsev | 10:41552d038a69 | 6 | * |
Zaitsev | 10:41552d038a69 | 7 | * Licensed under the Apache License, Version 2.0 (the "License"); |
Zaitsev | 10:41552d038a69 | 8 | * you may not use this file except in compliance with the License. |
Zaitsev | 10:41552d038a69 | 9 | * You may obtain a copy of the License at |
Zaitsev | 10:41552d038a69 | 10 | * |
Zaitsev | 10:41552d038a69 | 11 | * http://www.apache.org/licenses/LICENSE-2.0 |
Zaitsev | 10:41552d038a69 | 12 | * |
Zaitsev | 10:41552d038a69 | 13 | * Unless required by applicable law or agreed to in writing, software |
Zaitsev | 10:41552d038a69 | 14 | * distributed under the License is distributed on an "AS IS" BASIS, |
Zaitsev | 10:41552d038a69 | 15 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
Zaitsev | 10:41552d038a69 | 16 | * See the License for the specific language governing permissions and |
Zaitsev | 10:41552d038a69 | 17 | * limitations under the License. |
Zaitsev | 10:41552d038a69 | 18 | */ |
Zaitsev | 10:41552d038a69 | 19 | #ifndef MBED_DMA_API_H |
Zaitsev | 10:41552d038a69 | 20 | #define MBED_DMA_API_H |
Zaitsev | 10:41552d038a69 | 21 | |
Zaitsev | 10:41552d038a69 | 22 | #include <stdint.h> |
Zaitsev | 10:41552d038a69 | 23 | |
Zaitsev | 10:41552d038a69 | 24 | #define DMA_ERROR_OUT_OF_CHANNELS (-1) |
Zaitsev | 10:41552d038a69 | 25 | |
Zaitsev | 10:41552d038a69 | 26 | typedef enum { |
Zaitsev | 10:41552d038a69 | 27 | DMA_USAGE_NEVER, |
Zaitsev | 10:41552d038a69 | 28 | DMA_USAGE_OPPORTUNISTIC, |
Zaitsev | 10:41552d038a69 | 29 | DMA_USAGE_ALWAYS, |
Zaitsev | 10:41552d038a69 | 30 | DMA_USAGE_TEMPORARY_ALLOCATED, |
Zaitsev | 10:41552d038a69 | 31 | DMA_USAGE_ALLOCATED |
Zaitsev | 10:41552d038a69 | 32 | } DMAUsage; |
Zaitsev | 10:41552d038a69 | 33 | |
Zaitsev | 10:41552d038a69 | 34 | #ifdef __cplusplus |
Zaitsev | 10:41552d038a69 | 35 | extern "C" { |
Zaitsev | 10:41552d038a69 | 36 | #endif |
Zaitsev | 10:41552d038a69 | 37 | |
Zaitsev | 10:41552d038a69 | 38 | void dma_init(void); |
Zaitsev | 10:41552d038a69 | 39 | |
Zaitsev | 10:41552d038a69 | 40 | int dma_channel_allocate(uint32_t capabilities); |
Zaitsev | 10:41552d038a69 | 41 | |
Zaitsev | 10:41552d038a69 | 42 | int dma_channel_free(int channelid); |
Zaitsev | 10:41552d038a69 | 43 | |
Zaitsev | 10:41552d038a69 | 44 | #ifdef __cplusplus |
Zaitsev | 10:41552d038a69 | 45 | } |
Zaitsev | 10:41552d038a69 | 46 | #endif |
Zaitsev | 10:41552d038a69 | 47 | |
Zaitsev | 10:41552d038a69 | 48 | #endif |
Zaitsev | 10:41552d038a69 | 49 | |
Zaitsev | 10:41552d038a69 | 50 | /** @}*/ |