Greg Steiert / maxim-dev

Maxim mbed development library

Dependents:   MAX34417_demo MAXREFDES1265 MAXREFDES1265

Fork of mbed-dev by mbed official

hal/dma_api.h@164:2e7515f8c45d, 2017-03-24 (annotated)

Committer:
switches
Date:
Fri Mar 24 15:15:13 2017 +0000
Revision:
164:2e7515f8c45d
Parent:
149:156823d33999 
Added low level init to clear IO registers

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 149:156823d33999 1
<> 149:156823d33999 2 /** \addtogroup hal */
<> 149:156823d33999 3 /** @{*/
<> 144:ef7eb2e8f9f7 4 /* mbed Microcontroller Library
<> 144:ef7eb2e8f9f7 5 * Copyright (c) 2014-2015 ARM Limited
<> 144:ef7eb2e8f9f7 6 *
<> 144:ef7eb2e8f9f7 7 * Licensed under the Apache License, Version 2.0 (the "License");
<> 144:ef7eb2e8f9f7 8 * you may not use this file except in compliance with the License.
<> 144:ef7eb2e8f9f7 9 * You may obtain a copy of the License at
<> 144:ef7eb2e8f9f7 10 *
<> 144:ef7eb2e8f9f7 11 * http://www.apache.org/licenses/LICENSE-2.0
<> 144:ef7eb2e8f9f7 12 *
<> 144:ef7eb2e8f9f7 13 * Unless required by applicable law or agreed to in writing, software
<> 144:ef7eb2e8f9f7 14 * distributed under the License is distributed on an "AS IS" BASIS,
<> 144:ef7eb2e8f9f7 15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<> 144:ef7eb2e8f9f7 16 * See the License for the specific language governing permissions and
<> 144:ef7eb2e8f9f7 17 * limitations under the License.
<> 144:ef7eb2e8f9f7 18 */
<> 144:ef7eb2e8f9f7 19 #ifndef MBED_DMA_API_H
<> 144:ef7eb2e8f9f7 20 #define MBED_DMA_API_H
<> 144:ef7eb2e8f9f7 21
<> 144:ef7eb2e8f9f7 22 #include <stdint.h>
<> 144:ef7eb2e8f9f7 23
<> 144:ef7eb2e8f9f7 24 #define DMA_ERROR_OUT_OF_CHANNELS (-1)
<> 144:ef7eb2e8f9f7 25
<> 144:ef7eb2e8f9f7 26 typedef enum {
<> 144:ef7eb2e8f9f7 27 DMA_USAGE_NEVER,
<> 144:ef7eb2e8f9f7 28 DMA_USAGE_OPPORTUNISTIC,
<> 144:ef7eb2e8f9f7 29 DMA_USAGE_ALWAYS,
<> 144:ef7eb2e8f9f7 30 DMA_USAGE_TEMPORARY_ALLOCATED,
<> 144:ef7eb2e8f9f7 31 DMA_USAGE_ALLOCATED
<> 144:ef7eb2e8f9f7 32 } DMAUsage;
<> 144:ef7eb2e8f9f7 33
<> 144:ef7eb2e8f9f7 34 #ifdef __cplusplus
<> 144:ef7eb2e8f9f7 35 extern "C" {
<> 144:ef7eb2e8f9f7 36 #endif
<> 144:ef7eb2e8f9f7 37
<> 144:ef7eb2e8f9f7 38 void dma_init(void);
<> 144:ef7eb2e8f9f7 39
<> 144:ef7eb2e8f9f7 40 int dma_channel_allocate(uint32_t capabilities);
<> 144:ef7eb2e8f9f7 41
<> 144:ef7eb2e8f9f7 42 int dma_channel_free(int channelid);
<> 144:ef7eb2e8f9f7 43
<> 144:ef7eb2e8f9f7 44 #ifdef __cplusplus
<> 144:ef7eb2e8f9f7 45 }
<> 144:ef7eb2e8f9f7 46 #endif
<> 144:ef7eb2e8f9f7 47
<> 144:ef7eb2e8f9f7 48 #endif
<> 149:156823d33999 49
<> 149:156823d33999 50 /** @}*/