Steve Kim
mbed library sources
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mbed official
hal/dma_api.h@590:0835b0fc9a03, 2015-07-14 (annotated)
- Committer:
- SteveKim
- Date:
- Tue Jul 14 10:20:51 2015 +0000
- Revision:
- 590:0835b0fc9a03
- Parent:
- 525:c320967f86b9
.
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| mbed_official | 525:c320967f86b9 | 1 | /* mbed Microcontroller Library |
| mbed_official | 525:c320967f86b9 | 2 | * Copyright (c) 2014-2015 ARM Limited |
| mbed_official | 525:c320967f86b9 | 3 | * |
| mbed_official | 525:c320967f86b9 | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| mbed_official | 525:c320967f86b9 | 5 | * you may not use this file except in compliance with the License. |
| mbed_official | 525:c320967f86b9 | 6 | * You may obtain a copy of the License at |
| mbed_official | 525:c320967f86b9 | 7 | * |
| mbed_official | 525:c320967f86b9 | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| mbed_official | 525:c320967f86b9 | 9 | * |
| mbed_official | 525:c320967f86b9 | 10 | * Unless required by applicable law or agreed to in writing, software |
| mbed_official | 525:c320967f86b9 | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| mbed_official | 525:c320967f86b9 | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| mbed_official | 525:c320967f86b9 | 13 | * See the License for the specific language governing permissions and |
| mbed_official | 525:c320967f86b9 | 14 | * limitations under the License. |
| mbed_official | 525:c320967f86b9 | 15 | */ |
| mbed_official | 525:c320967f86b9 | 16 | #ifndef MBED_DMA_API_H |
| mbed_official | 525:c320967f86b9 | 17 | #define MBED_DMA_API_H |
| mbed_official | 525:c320967f86b9 | 18 | |
| mbed_official | 525:c320967f86b9 | 19 | #include <stdint.h> |
| mbed_official | 525:c320967f86b9 | 20 | |
| mbed_official | 525:c320967f86b9 | 21 | #define DMA_ERROR_OUT_OF_CHANNELS (-1) |
| mbed_official | 525:c320967f86b9 | 22 | |
| mbed_official | 525:c320967f86b9 | 23 | typedef enum { |
| mbed_official | 525:c320967f86b9 | 24 | DMA_USAGE_NEVER, |
| mbed_official | 525:c320967f86b9 | 25 | DMA_USAGE_OPPORTUNISTIC, |
| mbed_official | 525:c320967f86b9 | 26 | DMA_USAGE_ALWAYS, |
| mbed_official | 525:c320967f86b9 | 27 | DMA_USAGE_TEMPORARY_ALLOCATED, |
| mbed_official | 525:c320967f86b9 | 28 | DMA_USAGE_ALLOCATED |
| mbed_official | 525:c320967f86b9 | 29 | } DMAUsage; |
| mbed_official | 525:c320967f86b9 | 30 | |
| mbed_official | 525:c320967f86b9 | 31 | #ifdef __cplusplus |
| mbed_official | 525:c320967f86b9 | 32 | extern "C" { |
| mbed_official | 525:c320967f86b9 | 33 | #endif |
| mbed_official | 525:c320967f86b9 | 34 | |
| mbed_official | 525:c320967f86b9 | 35 | void dma_init(void); |
| mbed_official | 525:c320967f86b9 | 36 | |
| mbed_official | 525:c320967f86b9 | 37 | int dma_channel_allocate(uint32_t capabilities); |
| mbed_official | 525:c320967f86b9 | 38 | |
| mbed_official | 525:c320967f86b9 | 39 | int dma_channel_free(int channelid); |
| mbed_official | 525:c320967f86b9 | 40 | |
| mbed_official | 525:c320967f86b9 | 41 | #ifdef __cplusplus |
| mbed_official | 525:c320967f86b9 | 42 | } |
| mbed_official | 525:c320967f86b9 | 43 | #endif |
| mbed_official | 525:c320967f86b9 | 44 | |
| mbed_official | 525:c320967f86b9 | 45 | #endif |