Rahul Dahiya / Mbed OS STM32F7 Ethernet

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mbed-os/hal/dma_api.h@0:fb8047b156bb, 2020-01-15 (annotated)

Committer:
rahul_dahiya
Date:
Wed Jan 15 15:57:15 2020 +0530
Revision:
0:fb8047b156bb
STM32F7 LWIP

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rahul_dahiya 0:fb8047b156bb 1
rahul_dahiya 0:fb8047b156bb 2 /** \addtogroup hal */
rahul_dahiya 0:fb8047b156bb 3 /** @{*/
rahul_dahiya 0:fb8047b156bb 4 /* mbed Microcontroller Library
rahul_dahiya 0:fb8047b156bb 5 * Copyright (c) 2014-2015 ARM Limited
rahul_dahiya 0:fb8047b156bb 6 *
rahul_dahiya 0:fb8047b156bb 7 * Licensed under the Apache License, Version 2.0 (the "License");
rahul_dahiya 0:fb8047b156bb 8 * you may not use this file except in compliance with the License.
rahul_dahiya 0:fb8047b156bb 9 * You may obtain a copy of the License at
rahul_dahiya 0:fb8047b156bb 10 *
rahul_dahiya 0:fb8047b156bb 11 * http://www.apache.org/licenses/LICENSE-2.0
rahul_dahiya 0:fb8047b156bb 12 *
rahul_dahiya 0:fb8047b156bb 13 * Unless required by applicable law or agreed to in writing, software
rahul_dahiya 0:fb8047b156bb 14 * distributed under the License is distributed on an "AS IS" BASIS,
rahul_dahiya 0:fb8047b156bb 15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
rahul_dahiya 0:fb8047b156bb 16 * See the License for the specific language governing permissions and
rahul_dahiya 0:fb8047b156bb 17 * limitations under the License.
rahul_dahiya 0:fb8047b156bb 18 */
rahul_dahiya 0:fb8047b156bb 19 #ifndef MBED_DMA_API_H
rahul_dahiya 0:fb8047b156bb 20 #define MBED_DMA_API_H
rahul_dahiya 0:fb8047b156bb 21
rahul_dahiya 0:fb8047b156bb 22 #include <stdint.h>
rahul_dahiya 0:fb8047b156bb 23
rahul_dahiya 0:fb8047b156bb 24 #define DMA_ERROR_OUT_OF_CHANNELS (-1)
rahul_dahiya 0:fb8047b156bb 25
rahul_dahiya 0:fb8047b156bb 26 typedef enum {
rahul_dahiya 0:fb8047b156bb 27 DMA_USAGE_NEVER,
rahul_dahiya 0:fb8047b156bb 28 DMA_USAGE_OPPORTUNISTIC,
rahul_dahiya 0:fb8047b156bb 29 DMA_USAGE_ALWAYS,
rahul_dahiya 0:fb8047b156bb 30 DMA_USAGE_TEMPORARY_ALLOCATED,
rahul_dahiya 0:fb8047b156bb 31 DMA_USAGE_ALLOCATED
rahul_dahiya 0:fb8047b156bb 32 } DMAUsage;
rahul_dahiya 0:fb8047b156bb 33
rahul_dahiya 0:fb8047b156bb 34 #ifdef __cplusplus
rahul_dahiya 0:fb8047b156bb 35 extern "C" {
rahul_dahiya 0:fb8047b156bb 36 #endif
rahul_dahiya 0:fb8047b156bb 37
rahul_dahiya 0:fb8047b156bb 38 void dma_init(void);
rahul_dahiya 0:fb8047b156bb 39
rahul_dahiya 0:fb8047b156bb 40 int dma_channel_allocate(uint32_t capabilities);
rahul_dahiya 0:fb8047b156bb 41
rahul_dahiya 0:fb8047b156bb 42 int dma_channel_free(int channelid);
rahul_dahiya 0:fb8047b156bb 43
rahul_dahiya 0:fb8047b156bb 44 #ifdef __cplusplus
rahul_dahiya 0:fb8047b156bb 45 }
rahul_dahiya 0:fb8047b156bb 46 #endif
rahul_dahiya 0:fb8047b156bb 47
rahul_dahiya 0:fb8047b156bb 48 #endif
rahul_dahiya 0:fb8047b156bb 49
rahul_dahiya 0:fb8047b156bb 50 /** @}*/