Vladimir Vana / mbed

pro vyuku PSS v Jecne

dma_api.h@0:23d1f73bf130, 2017-09-24 (annotated)

Committer:
vladvana
Date:
Sun Sep 24 12:31:52 2017 +0000
Revision:
0:23d1f73bf130
podklady pro cviceni z PSS

Who changed what in which revision?

UserRevisionLine numberNew contents of line
vladvana 0:23d1f73bf130 1 /* mbed Microcontroller Library
vladvana 0:23d1f73bf130 2 * Copyright (c) 2014-2015 ARM Limited
vladvana 0:23d1f73bf130 3 *
vladvana 0:23d1f73bf130 4 * Licensed under the Apache License, Version 2.0 (the "License");
vladvana 0:23d1f73bf130 5 * you may not use this file except in compliance with the License.
vladvana 0:23d1f73bf130 6 * You may obtain a copy of the License at
vladvana 0:23d1f73bf130 7 *
vladvana 0:23d1f73bf130 8 * http://www.apache.org/licenses/LICENSE-2.0
vladvana 0:23d1f73bf130 9 *
vladvana 0:23d1f73bf130 10 * Unless required by applicable law or agreed to in writing, software
vladvana 0:23d1f73bf130 11 * distributed under the License is distributed on an "AS IS" BASIS,
vladvana 0:23d1f73bf130 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
vladvana 0:23d1f73bf130 13 * See the License for the specific language governing permissions and
vladvana 0:23d1f73bf130 14 * limitations under the License.
vladvana 0:23d1f73bf130 15 */
vladvana 0:23d1f73bf130 16 #ifndef MBED_DMA_API_H
vladvana 0:23d1f73bf130 17 #define MBED_DMA_API_H
vladvana 0:23d1f73bf130 18
vladvana 0:23d1f73bf130 19 #include <stdint.h>
vladvana 0:23d1f73bf130 20
vladvana 0:23d1f73bf130 21 #define DMA_ERROR_OUT_OF_CHANNELS (-1)
vladvana 0:23d1f73bf130 22
vladvana 0:23d1f73bf130 23 typedef enum {
vladvana 0:23d1f73bf130 24 DMA_USAGE_NEVER,
vladvana 0:23d1f73bf130 25 DMA_USAGE_OPPORTUNISTIC,
vladvana 0:23d1f73bf130 26 DMA_USAGE_ALWAYS,
vladvana 0:23d1f73bf130 27 DMA_USAGE_TEMPORARY_ALLOCATED,
vladvana 0:23d1f73bf130 28 DMA_USAGE_ALLOCATED
vladvana 0:23d1f73bf130 29 } DMAUsage;
vladvana 0:23d1f73bf130 30
vladvana 0:23d1f73bf130 31 #ifdef __cplusplus
vladvana 0:23d1f73bf130 32 extern "C" {
vladvana 0:23d1f73bf130 33 #endif
vladvana 0:23d1f73bf130 34
vladvana 0:23d1f73bf130 35 void dma_init(void);
vladvana 0:23d1f73bf130 36
vladvana 0:23d1f73bf130 37 int dma_channel_allocate(uint32_t capabilities);
vladvana 0:23d1f73bf130 38
vladvana 0:23d1f73bf130 39 int dma_channel_free(int channelid);
vladvana 0:23d1f73bf130 40
vladvana 0:23d1f73bf130 41 #ifdef __cplusplus
vladvana 0:23d1f73bf130 42 }
vladvana 0:23d1f73bf130 43 #endif
vladvana 0:23d1f73bf130 44
vladvana 0:23d1f73bf130 45 #endif