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TARGET_SAMD21J18A/TOOLCHAIN_GCC_ARM/sercom_dma.h@172:65be27845400, 2019-02-20 (annotated)
- Committer:
- AnnaBridge
- Date:
- Wed Feb 20 20:53:29 2019 +0000
- Revision:
- 172:65be27845400
- Parent:
- 171:3a7713b1edbc
mbed library release version 165
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
AnnaBridge | 156:ff21514d8981 | 1 | /* mbed Microcontroller Library |
AnnaBridge | 156:ff21514d8981 | 2 | * Copyright (c) 2006-2015 ARM Limited |
AnnaBridge | 156:ff21514d8981 | 3 | * |
AnnaBridge | 156:ff21514d8981 | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
AnnaBridge | 156:ff21514d8981 | 5 | * you may not use this file except in compliance with the License. |
AnnaBridge | 156:ff21514d8981 | 6 | * You may obtain a copy of the License at |
AnnaBridge | 156:ff21514d8981 | 7 | * |
AnnaBridge | 156:ff21514d8981 | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
AnnaBridge | 156:ff21514d8981 | 9 | * |
AnnaBridge | 156:ff21514d8981 | 10 | * Unless required by applicable law or agreed to in writing, software |
AnnaBridge | 156:ff21514d8981 | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
AnnaBridge | 156:ff21514d8981 | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
AnnaBridge | 156:ff21514d8981 | 13 | * See the License for the specific language governing permissions and |
AnnaBridge | 156:ff21514d8981 | 14 | * limitations under the License. |
AnnaBridge | 156:ff21514d8981 | 15 | */ |
AnnaBridge | 156:ff21514d8981 | 16 | |
AnnaBridge | 156:ff21514d8981 | 17 | #ifndef _SERCOM_DMA_H |
AnnaBridge | 156:ff21514d8981 | 18 | #define _SERCOM_DMA_H |
AnnaBridge | 156:ff21514d8981 | 19 | |
AnnaBridge | 156:ff21514d8981 | 20 | #ifdef __cplusplus |
AnnaBridge | 156:ff21514d8981 | 21 | extern "C" { |
AnnaBridge | 156:ff21514d8981 | 22 | #endif |
AnnaBridge | 156:ff21514d8981 | 23 | |
AnnaBridge | 156:ff21514d8981 | 24 | #include <compiler.h> |
AnnaBridge | 156:ff21514d8981 | 25 | #include "dma.h" |
AnnaBridge | 156:ff21514d8981 | 26 | |
AnnaBridge | 156:ff21514d8981 | 27 | |
AnnaBridge | 156:ff21514d8981 | 28 | struct sercom_dma { |
AnnaBridge | 156:ff21514d8981 | 29 | uint8_t tx_channel_id; |
AnnaBridge | 156:ff21514d8981 | 30 | uint8_t rx_channel_id; |
AnnaBridge | 156:ff21514d8981 | 31 | enum dma_status_flags tx_status; |
AnnaBridge | 156:ff21514d8981 | 32 | enum dma_status_flags rx_status; |
AnnaBridge | 156:ff21514d8981 | 33 | }; |
AnnaBridge | 156:ff21514d8981 | 34 | |
AnnaBridge | 156:ff21514d8981 | 35 | /** Allocate a channel for TX |
AnnaBridge | 156:ff21514d8981 | 36 | * |
AnnaBridge | 156:ff21514d8981 | 37 | * @param[in] sercom_index index of sercom instance |
AnnaBridge | 156:ff21514d8981 | 38 | * @param[out] tx_id pointer to channel id |
AnnaBridge | 156:ff21514d8981 | 39 | * @return allocated channel id |
AnnaBridge | 156:ff21514d8981 | 40 | */ |
AnnaBridge | 156:ff21514d8981 | 41 | uint8_t sercom_setup_tx_channel(uint8_t sercom_index, uint8_t *tx_id); |
AnnaBridge | 156:ff21514d8981 | 42 | |
AnnaBridge | 156:ff21514d8981 | 43 | /** Allocate a channel for RX |
AnnaBridge | 156:ff21514d8981 | 44 | * |
AnnaBridge | 156:ff21514d8981 | 45 | * @param[in] sercom_index index of sercom instance |
AnnaBridge | 156:ff21514d8981 | 46 | * @param[out] rx_id pointer to channel id |
AnnaBridge | 156:ff21514d8981 | 47 | * @return allocated channel id |
AnnaBridge | 156:ff21514d8981 | 48 | */ |
AnnaBridge | 156:ff21514d8981 | 49 | uint8_t sercom_setup_rx_channel(uint8_t sercom_index, uint8_t *rx_id); |
AnnaBridge | 156:ff21514d8981 | 50 | |
AnnaBridge | 156:ff21514d8981 | 51 | /** Release DMA channels if allocated |
AnnaBridge | 156:ff21514d8981 | 52 | * |
AnnaBridge | 156:ff21514d8981 | 53 | * @param[in] sercom_index index of sercom instance |
AnnaBridge | 156:ff21514d8981 | 54 | * @return void |
AnnaBridge | 156:ff21514d8981 | 55 | */ |
AnnaBridge | 156:ff21514d8981 | 56 | void sercom_release_channel(uint8_t sercom_index); |
AnnaBridge | 156:ff21514d8981 | 57 | |
AnnaBridge | 156:ff21514d8981 | 58 | #ifdef __cplusplus |
AnnaBridge | 156:ff21514d8981 | 59 | } |
AnnaBridge | 156:ff21514d8981 | 60 | #endif |
AnnaBridge | 156:ff21514d8981 | 61 | |
AnnaBridge | 156:ff21514d8981 | 62 | #endif /* _SERCOM_DMA_H */ |