EL4121 Embedded System / mbed-os

mbed-os

Dependents:   cobaLCDJoyMotor_Thread odometry_omni_3roda_v3 odometry_omni_3roda_v1 odometry_omni_3roda_v2 ... more

hal/dma_api.h@0:b74591d5ab33, 2017-12-11 (annotated)

Committer:
be_bryan
Date:
Mon Dec 11 17:54:04 2017 +0000
Revision:
0:b74591d5ab33
motor ++

Who changed what in which revision?

UserRevisionLine numberNew contents of line
be_bryan 0:b74591d5ab33 1
be_bryan 0:b74591d5ab33 2 /** \addtogroup hal */
be_bryan 0:b74591d5ab33 3 /** @{*/
be_bryan 0:b74591d5ab33 4 /* mbed Microcontroller Library
be_bryan 0:b74591d5ab33 5 * Copyright (c) 2014-2015 ARM Limited
be_bryan 0:b74591d5ab33 6 *
be_bryan 0:b74591d5ab33 7 * Licensed under the Apache License, Version 2.0 (the "License");
be_bryan 0:b74591d5ab33 8 * you may not use this file except in compliance with the License.
be_bryan 0:b74591d5ab33 9 * You may obtain a copy of the License at
be_bryan 0:b74591d5ab33 10 *
be_bryan 0:b74591d5ab33 11 * http://www.apache.org/licenses/LICENSE-2.0
be_bryan 0:b74591d5ab33 12 *
be_bryan 0:b74591d5ab33 13 * Unless required by applicable law or agreed to in writing, software
be_bryan 0:b74591d5ab33 14 * distributed under the License is distributed on an "AS IS" BASIS,
be_bryan 0:b74591d5ab33 15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
be_bryan 0:b74591d5ab33 16 * See the License for the specific language governing permissions and
be_bryan 0:b74591d5ab33 17 * limitations under the License.
be_bryan 0:b74591d5ab33 18 */
be_bryan 0:b74591d5ab33 19 #ifndef MBED_DMA_API_H
be_bryan 0:b74591d5ab33 20 #define MBED_DMA_API_H
be_bryan 0:b74591d5ab33 21
be_bryan 0:b74591d5ab33 22 #include <stdint.h>
be_bryan 0:b74591d5ab33 23
be_bryan 0:b74591d5ab33 24 #define DMA_ERROR_OUT_OF_CHANNELS (-1)
be_bryan 0:b74591d5ab33 25
be_bryan 0:b74591d5ab33 26 typedef enum {
be_bryan 0:b74591d5ab33 27 DMA_USAGE_NEVER,
be_bryan 0:b74591d5ab33 28 DMA_USAGE_OPPORTUNISTIC,
be_bryan 0:b74591d5ab33 29 DMA_USAGE_ALWAYS,
be_bryan 0:b74591d5ab33 30 DMA_USAGE_TEMPORARY_ALLOCATED,
be_bryan 0:b74591d5ab33 31 DMA_USAGE_ALLOCATED
be_bryan 0:b74591d5ab33 32 } DMAUsage;
be_bryan 0:b74591d5ab33 33
be_bryan 0:b74591d5ab33 34 #ifdef __cplusplus
be_bryan 0:b74591d5ab33 35 extern "C" {
be_bryan 0:b74591d5ab33 36 #endif
be_bryan 0:b74591d5ab33 37
be_bryan 0:b74591d5ab33 38 void dma_init(void);
be_bryan 0:b74591d5ab33 39
be_bryan 0:b74591d5ab33 40 int dma_channel_allocate(uint32_t capabilities);
be_bryan 0:b74591d5ab33 41
be_bryan 0:b74591d5ab33 42 int dma_channel_free(int channelid);
be_bryan 0:b74591d5ab33 43
be_bryan 0:b74591d5ab33 44 #ifdef __cplusplus
be_bryan 0:b74591d5ab33 45 }
be_bryan 0:b74591d5ab33 46 #endif
be_bryan 0:b74591d5ab33 47
be_bryan 0:b74591d5ab33 48 #endif
be_bryan 0:b74591d5ab33 49
be_bryan 0:b74591d5ab33 50 /** @}*/