b luo / mbed-dev

mbed library sources. With a patch for the can_api

Fork of mbed-dev by mbed official

hal/dma_api.h@144:ef7eb2e8f9f7, 2016-09-02 (annotated)

Committer:
<>
Date:
Fri Sep 02 15:07:44 2016 +0100
Revision:
144:ef7eb2e8f9f7
Parent:
0:9b334a45a8ff
Child:
149:156823d33999
This updates the lib to the mbed lib v125

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 144:ef7eb2e8f9f7 1 /* mbed Microcontroller Library
<> 144:ef7eb2e8f9f7 2 * Copyright (c) 2014-2015 ARM Limited
<> 144:ef7eb2e8f9f7 3 *
<> 144:ef7eb2e8f9f7 4 * Licensed under the Apache License, Version 2.0 (the "License");
<> 144:ef7eb2e8f9f7 5 * you may not use this file except in compliance with the License.
<> 144:ef7eb2e8f9f7 6 * You may obtain a copy of the License at
<> 144:ef7eb2e8f9f7 7 *
<> 144:ef7eb2e8f9f7 8 * http://www.apache.org/licenses/LICENSE-2.0
<> 144:ef7eb2e8f9f7 9 *
<> 144:ef7eb2e8f9f7 10 * Unless required by applicable law or agreed to in writing, software
<> 144:ef7eb2e8f9f7 11 * distributed under the License is distributed on an "AS IS" BASIS,
<> 144:ef7eb2e8f9f7 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<> 144:ef7eb2e8f9f7 13 * See the License for the specific language governing permissions and
<> 144:ef7eb2e8f9f7 14 * limitations under the License.
<> 144:ef7eb2e8f9f7 15 */
<> 144:ef7eb2e8f9f7 16 #ifndef MBED_DMA_API_H
<> 144:ef7eb2e8f9f7 17 #define MBED_DMA_API_H
<> 144:ef7eb2e8f9f7 18
<> 144:ef7eb2e8f9f7 19 #include <stdint.h>
<> 144:ef7eb2e8f9f7 20
<> 144:ef7eb2e8f9f7 21 #define DMA_ERROR_OUT_OF_CHANNELS (-1)
<> 144:ef7eb2e8f9f7 22
<> 144:ef7eb2e8f9f7 23 typedef enum {
<> 144:ef7eb2e8f9f7 24 DMA_USAGE_NEVER,
<> 144:ef7eb2e8f9f7 25 DMA_USAGE_OPPORTUNISTIC,
<> 144:ef7eb2e8f9f7 26 DMA_USAGE_ALWAYS,
<> 144:ef7eb2e8f9f7 27 DMA_USAGE_TEMPORARY_ALLOCATED,
<> 144:ef7eb2e8f9f7 28 DMA_USAGE_ALLOCATED
<> 144:ef7eb2e8f9f7 29 } DMAUsage;
<> 144:ef7eb2e8f9f7 30
<> 144:ef7eb2e8f9f7 31 #ifdef __cplusplus
<> 144:ef7eb2e8f9f7 32 extern "C" {
<> 144:ef7eb2e8f9f7 33 #endif
<> 144:ef7eb2e8f9f7 34
<> 144:ef7eb2e8f9f7 35 void dma_init(void);
<> 144:ef7eb2e8f9f7 36
<> 144:ef7eb2e8f9f7 37 int dma_channel_allocate(uint32_t capabilities);
<> 144:ef7eb2e8f9f7 38
<> 144:ef7eb2e8f9f7 39 int dma_channel_free(int channelid);
<> 144:ef7eb2e8f9f7 40
<> 144:ef7eb2e8f9f7 41 #ifdef __cplusplus
<> 144:ef7eb2e8f9f7 42 }
<> 144:ef7eb2e8f9f7 43 #endif
<> 144:ef7eb2e8f9f7 44
<> 144:ef7eb2e8f9f7 45 #endif