Jhon Plantikow / mbed

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Dependents:   RTC

dma_api.h@0:88e313c910d0, 2015-08-13 (annotated)

Committer:
jhon309
Date:
Thu Aug 13 00:20:09 2015 +0000
Revision:
0:88e313c910d0
RTC Example

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jhon309 0:88e313c910d0 1 /* mbed Microcontroller Library
jhon309 0:88e313c910d0 2 * Copyright (c) 2014-2015 ARM Limited
jhon309 0:88e313c910d0 3 *
jhon309 0:88e313c910d0 4 * Licensed under the Apache License, Version 2.0 (the "License");
jhon309 0:88e313c910d0 5 * you may not use this file except in compliance with the License.
jhon309 0:88e313c910d0 6 * You may obtain a copy of the License at
jhon309 0:88e313c910d0 7 *
jhon309 0:88e313c910d0 8 * http://www.apache.org/licenses/LICENSE-2.0
jhon309 0:88e313c910d0 9 *
jhon309 0:88e313c910d0 10 * Unless required by applicable law or agreed to in writing, software
jhon309 0:88e313c910d0 11 * distributed under the License is distributed on an "AS IS" BASIS,
jhon309 0:88e313c910d0 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
jhon309 0:88e313c910d0 13 * See the License for the specific language governing permissions and
jhon309 0:88e313c910d0 14 * limitations under the License.
jhon309 0:88e313c910d0 15 */
jhon309 0:88e313c910d0 16 #ifndef MBED_DMA_API_H
jhon309 0:88e313c910d0 17 #define MBED_DMA_API_H
jhon309 0:88e313c910d0 18
jhon309 0:88e313c910d0 19 #include <stdint.h>
jhon309 0:88e313c910d0 20
jhon309 0:88e313c910d0 21 #define DMA_ERROR_OUT_OF_CHANNELS (-1)
jhon309 0:88e313c910d0 22
jhon309 0:88e313c910d0 23 typedef enum {
jhon309 0:88e313c910d0 24 DMA_USAGE_NEVER,
jhon309 0:88e313c910d0 25 DMA_USAGE_OPPORTUNISTIC,
jhon309 0:88e313c910d0 26 DMA_USAGE_ALWAYS,
jhon309 0:88e313c910d0 27 DMA_USAGE_TEMPORARY_ALLOCATED,
jhon309 0:88e313c910d0 28 DMA_USAGE_ALLOCATED
jhon309 0:88e313c910d0 29 } DMAUsage;
jhon309 0:88e313c910d0 30
jhon309 0:88e313c910d0 31 #ifdef __cplusplus
jhon309 0:88e313c910d0 32 extern "C" {
jhon309 0:88e313c910d0 33 #endif
jhon309 0:88e313c910d0 34
jhon309 0:88e313c910d0 35 void dma_init(void);
jhon309 0:88e313c910d0 36
jhon309 0:88e313c910d0 37 int dma_channel_allocate(uint32_t capabilities);
jhon309 0:88e313c910d0 38
jhon309 0:88e313c910d0 39 int dma_channel_free(int channelid);
jhon309 0:88e313c910d0 40
jhon309 0:88e313c910d0 41 #ifdef __cplusplus
jhon309 0:88e313c910d0 42 }
jhon309 0:88e313c910d0 43 #endif
jhon309 0:88e313c910d0 44
jhon309 0:88e313c910d0 45 #endif