Damian Gabino / picoGW_mcu

MCU driver/HAL for the Picocell Gateway concentrator board. The firmware implements either a USB CDC protocol or a UART protocol to bridge commands coming from host to the SX1308 SPI interface.

src/mbed-dev/hal/dma_api.h@0:c76361bd82e8, 2018-04-11 (annotated)

Committer:
dgabino
Date:
Wed Apr 11 14:42:47 2018 +0000
Revision:
0:c76361bd82e8
Initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
dgabino 0:c76361bd82e8 1 /* mbed Microcontroller Library
dgabino 0:c76361bd82e8 2 * Copyright (c) 2014-2015 ARM Limited
dgabino 0:c76361bd82e8 3 *
dgabino 0:c76361bd82e8 4 * Licensed under the Apache License, Version 2.0 (the "License");
dgabino 0:c76361bd82e8 5 * you may not use this file except in compliance with the License.
dgabino 0:c76361bd82e8 6 * You may obtain a copy of the License at
dgabino 0:c76361bd82e8 7 *
dgabino 0:c76361bd82e8 8 * http://www.apache.org/licenses/LICENSE-2.0
dgabino 0:c76361bd82e8 9 *
dgabino 0:c76361bd82e8 10 * Unless required by applicable law or agreed to in writing, software
dgabino 0:c76361bd82e8 11 * distributed under the License is distributed on an "AS IS" BASIS,
dgabino 0:c76361bd82e8 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
dgabino 0:c76361bd82e8 13 * See the License for the specific language governing permissions and
dgabino 0:c76361bd82e8 14 * limitations under the License.
dgabino 0:c76361bd82e8 15 */
dgabino 0:c76361bd82e8 16 #ifndef MBED_DMA_API_H
dgabino 0:c76361bd82e8 17 #define MBED_DMA_API_H
dgabino 0:c76361bd82e8 18
dgabino 0:c76361bd82e8 19 #include <stdint.h>
dgabino 0:c76361bd82e8 20
dgabino 0:c76361bd82e8 21 #define DMA_ERROR_OUT_OF_CHANNELS (-1)
dgabino 0:c76361bd82e8 22
dgabino 0:c76361bd82e8 23 typedef enum {
dgabino 0:c76361bd82e8 24 DMA_USAGE_NEVER,
dgabino 0:c76361bd82e8 25 DMA_USAGE_OPPORTUNISTIC,
dgabino 0:c76361bd82e8 26 DMA_USAGE_ALWAYS,
dgabino 0:c76361bd82e8 27 DMA_USAGE_TEMPORARY_ALLOCATED,
dgabino 0:c76361bd82e8 28 DMA_USAGE_ALLOCATED
dgabino 0:c76361bd82e8 29 } DMAUsage;
dgabino 0:c76361bd82e8 30
dgabino 0:c76361bd82e8 31 #ifdef __cplusplus
dgabino 0:c76361bd82e8 32 extern "C" {
dgabino 0:c76361bd82e8 33 #endif
dgabino 0:c76361bd82e8 34
dgabino 0:c76361bd82e8 35 void dma_init(void);
dgabino 0:c76361bd82e8 36
dgabino 0:c76361bd82e8 37 int dma_channel_allocate(uint32_t capabilities);
dgabino 0:c76361bd82e8 38
dgabino 0:c76361bd82e8 39 int dma_channel_free(int channelid);
dgabino 0:c76361bd82e8 40
dgabino 0:c76361bd82e8 41 #ifdef __cplusplus
dgabino 0:c76361bd82e8 42 }
dgabino 0:c76361bd82e8 43 #endif
dgabino 0:c76361bd82e8 44
dgabino 0:c76361bd82e8 45 #endif