mbed official / mbed-dev

mbed library sources. Supersedes mbed-src.

Dependents:   Nucleo_Hello_Encoder BLE_iBeaconScan AM1805_DEMO DISCO-F429ZI_ExportTemplate1 ... more

hal/dma_api.h@189:f392fc9709a3, 2019-02-20 (annotated)

Committer:
AnnaBridge
Date:
Wed Feb 20 22:31:08 2019 +0000
Revision:
189:f392fc9709a3
Parent:
149:156823d33999 
mbed library release version 165

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
AnnaBridge 189:f392fc9709a3 6 * SPDX-License-Identifier: Apache-2.0
<> 144:ef7eb2e8f9f7 7 *
<> 144:ef7eb2e8f9f7 8 * Licensed under the Apache License, Version 2.0 (the "License");
<> 144:ef7eb2e8f9f7 9 * you may not use this file except in compliance with the License.
<> 144:ef7eb2e8f9f7 10 * You may obtain a copy of the License at
<> 144:ef7eb2e8f9f7 11 *
<> 144:ef7eb2e8f9f7 12 * http://www.apache.org/licenses/LICENSE-2.0
<> 144:ef7eb2e8f9f7 13 *
<> 144:ef7eb2e8f9f7 14 * Unless required by applicable law or agreed to in writing, software
<> 144:ef7eb2e8f9f7 15 * distributed under the License is distributed on an "AS IS" BASIS,
<> 144:ef7eb2e8f9f7 16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<> 144:ef7eb2e8f9f7 17 * See the License for the specific language governing permissions and
<> 144:ef7eb2e8f9f7 18 * limitations under the License.
<> 144:ef7eb2e8f9f7 19 */
<> 144:ef7eb2e8f9f7 20 #ifndef MBED_DMA_API_H
<> 144:ef7eb2e8f9f7 21 #define MBED_DMA_API_H
<> 144:ef7eb2e8f9f7 22
<> 144:ef7eb2e8f9f7 23 #include <stdint.h>
<> 144:ef7eb2e8f9f7 24
<> 144:ef7eb2e8f9f7 25 #define DMA_ERROR_OUT_OF_CHANNELS (-1)
<> 144:ef7eb2e8f9f7 26
<> 144:ef7eb2e8f9f7 27 typedef enum {
<> 144:ef7eb2e8f9f7 28 DMA_USAGE_NEVER,
<> 144:ef7eb2e8f9f7 29 DMA_USAGE_OPPORTUNISTIC,
<> 144:ef7eb2e8f9f7 30 DMA_USAGE_ALWAYS,
<> 144:ef7eb2e8f9f7 31 DMA_USAGE_TEMPORARY_ALLOCATED,
<> 144:ef7eb2e8f9f7 32 DMA_USAGE_ALLOCATED
<> 144:ef7eb2e8f9f7 33 } DMAUsage;
<> 144:ef7eb2e8f9f7 34
<> 144:ef7eb2e8f9f7 35 #ifdef __cplusplus
<> 144:ef7eb2e8f9f7 36 extern "C" {
<> 144:ef7eb2e8f9f7 37 #endif
<> 144:ef7eb2e8f9f7 38
<> 144:ef7eb2e8f9f7 39 void dma_init(void);
<> 144:ef7eb2e8f9f7 40
<> 144:ef7eb2e8f9f7 41 int dma_channel_allocate(uint32_t capabilities);
<> 144:ef7eb2e8f9f7 42
<> 144:ef7eb2e8f9f7 43 int dma_channel_free(int channelid);
<> 144:ef7eb2e8f9f7 44
<> 144:ef7eb2e8f9f7 45 #ifdef __cplusplus
<> 144:ef7eb2e8f9f7 46 }
<> 144:ef7eb2e8f9f7 47 #endif
<> 144:ef7eb2e8f9f7 48
<> 144:ef7eb2e8f9f7 49 #endif
<> 149:156823d33999 50
<> 149:156823d33999 51 /** @}*/