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TARGET_SAMR21G18A/TOOLCHAIN_ARM_STD/sercom_dma.h@171:3a7713b1edbc, 2018-11-08 (annotated)

Committer:
AnnaBridge
Date:
Thu Nov 08 11:45:42 2018 +0000
Revision:
171:3a7713b1edbc
Parent:
TARGET_SAMR21G18A/TARGET_Atmel/TARGET_SAM_CortexM0P/sercom_dma.h@156:ff21514d8981 
mbed library. Release version 164

Who changed what in which revision?

UserRevisionLine numberNew 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 */