Renato Grottesi / mbed-dev-bin

Microbit as a BLE gamepad

Dependents:   microbit-dal

Fork of mbed-dev-bin by Lancaster University

dma_api.h@4:bb4b3734941b, 2017-01-30 (annotated)

Committer:
rengro01
Date:
Mon Jan 30 08:23:23 2017 +0000
Revision:
4:bb4b3734941b
Parent:
0:e1a608bb55e8 
Microbit as a BLE gamepad

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jamesadevine 0:e1a608bb55e8 1 /* mbed Microcontroller Library
jamesadevine 0:e1a608bb55e8 2 * Copyright (c) 2014-2015 ARM Limited
jamesadevine 0:e1a608bb55e8 3 *
jamesadevine 0:e1a608bb55e8 4 * Licensed under the Apache License, Version 2.0 (the "License");
jamesadevine 0:e1a608bb55e8 5 * you may not use this file except in compliance with the License.
jamesadevine 0:e1a608bb55e8 6 * You may obtain a copy of the License at
jamesadevine 0:e1a608bb55e8 7 *
jamesadevine 0:e1a608bb55e8 8 * http://www.apache.org/licenses/LICENSE-2.0
jamesadevine 0:e1a608bb55e8 9 *
jamesadevine 0:e1a608bb55e8 10 * Unless required by applicable law or agreed to in writing, software
jamesadevine 0:e1a608bb55e8 11 * distributed under the License is distributed on an "AS IS" BASIS,
jamesadevine 0:e1a608bb55e8 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
jamesadevine 0:e1a608bb55e8 13 * See the License for the specific language governing permissions and
jamesadevine 0:e1a608bb55e8 14 * limitations under the License.
jamesadevine 0:e1a608bb55e8 15 */
jamesadevine 0:e1a608bb55e8 16 #ifndef MBED_DMA_API_H
jamesadevine 0:e1a608bb55e8 17 #define MBED_DMA_API_H
jamesadevine 0:e1a608bb55e8 18
jamesadevine 0:e1a608bb55e8 19 #include <stdint.h>
jamesadevine 0:e1a608bb55e8 20
jamesadevine 0:e1a608bb55e8 21 #define DMA_ERROR_OUT_OF_CHANNELS (-1)
jamesadevine 0:e1a608bb55e8 22
jamesadevine 0:e1a608bb55e8 23 typedef enum {
jamesadevine 0:e1a608bb55e8 24 DMA_USAGE_NEVER,
jamesadevine 0:e1a608bb55e8 25 DMA_USAGE_OPPORTUNISTIC,
jamesadevine 0:e1a608bb55e8 26 DMA_USAGE_ALWAYS,
jamesadevine 0:e1a608bb55e8 27 DMA_USAGE_TEMPORARY_ALLOCATED,
jamesadevine 0:e1a608bb55e8 28 DMA_USAGE_ALLOCATED
jamesadevine 0:e1a608bb55e8 29 } DMAUsage;
jamesadevine 0:e1a608bb55e8 30
jamesadevine 0:e1a608bb55e8 31 #ifdef __cplusplus
jamesadevine 0:e1a608bb55e8 32 extern "C" {
jamesadevine 0:e1a608bb55e8 33 #endif
jamesadevine 0:e1a608bb55e8 34
jamesadevine 0:e1a608bb55e8 35 void dma_init(void);
jamesadevine 0:e1a608bb55e8 36
jamesadevine 0:e1a608bb55e8 37 int dma_channel_allocate(uint32_t capabilities);
jamesadevine 0:e1a608bb55e8 38
jamesadevine 0:e1a608bb55e8 39 int dma_channel_free(int channelid);
jamesadevine 0:e1a608bb55e8 40
jamesadevine 0:e1a608bb55e8 41 #ifdef __cplusplus
jamesadevine 0:e1a608bb55e8 42 }
jamesadevine 0:e1a608bb55e8 43 #endif
jamesadevine 0:e1a608bb55e8 44
jamesadevine 0:e1a608bb55e8 45 #endif