Greg Steiert / maxim_dev

Dependents:   sensomed

hal/dma_api.h@0:0e018d759a2a, 2016-11-08 (annotated)

Committer:
switches
Date:
Tue Nov 08 18:27:11 2016 +0000
Revision:
0:0e018d759a2a
Initial commit

Who changed what in which revision?

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switches 0:0e018d759a2a 1
switches 0:0e018d759a2a 2 /** \addtogroup hal */
switches 0:0e018d759a2a 3 /** @{*/
switches 0:0e018d759a2a 4 /* mbed Microcontroller Library
switches 0:0e018d759a2a 5 * Copyright (c) 2014-2015 ARM Limited
switches 0:0e018d759a2a 6 *
switches 0:0e018d759a2a 7 * Licensed under the Apache License, Version 2.0 (the "License");
switches 0:0e018d759a2a 8 * you may not use this file except in compliance with the License.
switches 0:0e018d759a2a 9 * You may obtain a copy of the License at
switches 0:0e018d759a2a 10 *
switches 0:0e018d759a2a 11 * http://www.apache.org/licenses/LICENSE-2.0
switches 0:0e018d759a2a 12 *
switches 0:0e018d759a2a 13 * Unless required by applicable law or agreed to in writing, software
switches 0:0e018d759a2a 14 * distributed under the License is distributed on an "AS IS" BASIS,
switches 0:0e018d759a2a 15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
switches 0:0e018d759a2a 16 * See the License for the specific language governing permissions and
switches 0:0e018d759a2a 17 * limitations under the License.
switches 0:0e018d759a2a 18 */
switches 0:0e018d759a2a 19 #ifndef MBED_DMA_API_H
switches 0:0e018d759a2a 20 #define MBED_DMA_API_H
switches 0:0e018d759a2a 21
switches 0:0e018d759a2a 22 #include <stdint.h>
switches 0:0e018d759a2a 23
switches 0:0e018d759a2a 24 #define DMA_ERROR_OUT_OF_CHANNELS (-1)
switches 0:0e018d759a2a 25
switches 0:0e018d759a2a 26 typedef enum {
switches 0:0e018d759a2a 27 DMA_USAGE_NEVER,
switches 0:0e018d759a2a 28 DMA_USAGE_OPPORTUNISTIC,
switches 0:0e018d759a2a 29 DMA_USAGE_ALWAYS,
switches 0:0e018d759a2a 30 DMA_USAGE_TEMPORARY_ALLOCATED,
switches 0:0e018d759a2a 31 DMA_USAGE_ALLOCATED
switches 0:0e018d759a2a 32 } DMAUsage;
switches 0:0e018d759a2a 33
switches 0:0e018d759a2a 34 #ifdef __cplusplus
switches 0:0e018d759a2a 35 extern "C" {
switches 0:0e018d759a2a 36 #endif
switches 0:0e018d759a2a 37
switches 0:0e018d759a2a 38 void dma_init(void);
switches 0:0e018d759a2a 39
switches 0:0e018d759a2a 40 int dma_channel_allocate(uint32_t capabilities);
switches 0:0e018d759a2a 41
switches 0:0e018d759a2a 42 int dma_channel_free(int channelid);
switches 0:0e018d759a2a 43
switches 0:0e018d759a2a 44 #ifdef __cplusplus
switches 0:0e018d759a2a 45 }
switches 0:0e018d759a2a 46 #endif
switches 0:0e018d759a2a 47
switches 0:0e018d759a2a 48 #endif
switches 0:0e018d759a2a 49
switches 0:0e018d759a2a 50 /** @}*/