lzbp li / mbed-stm32l0l1-src-un

++

Fork of mbed-stm32l0/l1-src by lzbp li

hal/dma_api.h@525:c320967f86b9, 2015-04-28 (annotated)

Committer:
mbed_official
Date:
Tue Apr 28 11:45:12 2015 +0100
Revision:
525:c320967f86b9
Synchronized with git revision 299385b8331142b9dc524da7a986536f60b14553



Full URL: https://github.com/mbedmicro/mbed/commit/299385b8331142b9dc524da7a986536f60b14553/



Add in Silicon Labs targets with asynchronous API support

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 525:c320967f86b9 1 /* mbed Microcontroller Library
mbed_official 525:c320967f86b9 2 * Copyright (c) 2014-2015 ARM Limited
mbed_official 525:c320967f86b9 3 *
mbed_official 525:c320967f86b9 4 * Licensed under the Apache License, Version 2.0 (the "License");
mbed_official 525:c320967f86b9 5 * you may not use this file except in compliance with the License.
mbed_official 525:c320967f86b9 6 * You may obtain a copy of the License at
mbed_official 525:c320967f86b9 7 *
mbed_official 525:c320967f86b9 8 * http://www.apache.org/licenses/LICENSE-2.0
mbed_official 525:c320967f86b9 9 *
mbed_official 525:c320967f86b9 10 * Unless required by applicable law or agreed to in writing, software
mbed_official 525:c320967f86b9 11 * distributed under the License is distributed on an "AS IS" BASIS,
mbed_official 525:c320967f86b9 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mbed_official 525:c320967f86b9 13 * See the License for the specific language governing permissions and
mbed_official 525:c320967f86b9 14 * limitations under the License.
mbed_official 525:c320967f86b9 15 */
mbed_official 525:c320967f86b9 16 #ifndef MBED_DMA_API_H
mbed_official 525:c320967f86b9 17 #define MBED_DMA_API_H
mbed_official 525:c320967f86b9 18
mbed_official 525:c320967f86b9 19 #include <stdint.h>
mbed_official 525:c320967f86b9 20
mbed_official 525:c320967f86b9 21 #define DMA_ERROR_OUT_OF_CHANNELS (-1)
mbed_official 525:c320967f86b9 22
mbed_official 525:c320967f86b9 23 typedef enum {
mbed_official 525:c320967f86b9 24 DMA_USAGE_NEVER,
mbed_official 525:c320967f86b9 25 DMA_USAGE_OPPORTUNISTIC,
mbed_official 525:c320967f86b9 26 DMA_USAGE_ALWAYS,
mbed_official 525:c320967f86b9 27 DMA_USAGE_TEMPORARY_ALLOCATED,
mbed_official 525:c320967f86b9 28 DMA_USAGE_ALLOCATED
mbed_official 525:c320967f86b9 29 } DMAUsage;
mbed_official 525:c320967f86b9 30
mbed_official 525:c320967f86b9 31 #ifdef __cplusplus
mbed_official 525:c320967f86b9 32 extern "C" {
mbed_official 525:c320967f86b9 33 #endif
mbed_official 525:c320967f86b9 34
mbed_official 525:c320967f86b9 35 void dma_init(void);
mbed_official 525:c320967f86b9 36
mbed_official 525:c320967f86b9 37 int dma_channel_allocate(uint32_t capabilities);
mbed_official 525:c320967f86b9 38
mbed_official 525:c320967f86b9 39 int dma_channel_free(int channelid);
mbed_official 525:c320967f86b9 40
mbed_official 525:c320967f86b9 41 #ifdef __cplusplus
mbed_official 525:c320967f86b9 42 }
mbed_official 525:c320967f86b9 43 #endif
mbed_official 525:c320967f86b9 44
mbed_official 525:c320967f86b9 45 #endif