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targets/hal/TARGET_Atmel/TARGET_SAM21/sercom_dma.h@579:53297373a894, 2015-07-01 (annotated)

Committer:
mbed_official
Date:
Wed Jul 01 09:45:11 2015 +0100
Revision:
579:53297373a894
Synchronized with git revision d5b4d2ab9c47edb4dc5776e7177b0c2263459081



Full URL: https://github.com/mbedmicro/mbed/commit/d5b4d2ab9c47edb4dc5776e7177b0c2263459081/



Initial version of drivers for SAMR21

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 579:53297373a894 1 /* mbed Microcontroller Library
mbed_official 579:53297373a894 2 * Copyright (c) 2006-2013 ARM Limited
mbed_official 579:53297373a894 3 *
mbed_official 579:53297373a894 4 * Licensed under the Apache License, Version 2.0 (the "License");
mbed_official 579:53297373a894 5 * you may not use this file except in compliance with the License.
mbed_official 579:53297373a894 6 * You may obtain a copy of the License at
mbed_official 579:53297373a894 7 *
mbed_official 579:53297373a894 8 * http://www.apache.org/licenses/LICENSE-2.0
mbed_official 579:53297373a894 9 *
mbed_official 579:53297373a894 10 * Unless required by applicable law or agreed to in writing, software
mbed_official 579:53297373a894 11 * distributed under the License is distributed on an "AS IS" BASIS,
mbed_official 579:53297373a894 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mbed_official 579:53297373a894 13 * See the License for the specific language governing permissions and
mbed_official 579:53297373a894 14 * limitations under the License.
mbed_official 579:53297373a894 15 */
mbed_official 579:53297373a894 16
mbed_official 579:53297373a894 17 #ifndef _SERCOM_DMA_H
mbed_official 579:53297373a894 18 #define _SERCOM_DMA_H
mbed_official 579:53297373a894 19
mbed_official 579:53297373a894 20 #ifdef __cplusplus
mbed_official 579:53297373a894 21 extern "C" {
mbed_official 579:53297373a894 22 #endif
mbed_official 579:53297373a894 23
mbed_official 579:53297373a894 24 #include <compiler.h>
mbed_official 579:53297373a894 25 #include "dma.h"
mbed_official 579:53297373a894 26
mbed_official 579:53297373a894 27
mbed_official 579:53297373a894 28 struct sercom_dma {
mbed_official 579:53297373a894 29 uint8_t tx_channel_id;
mbed_official 579:53297373a894 30 uint8_t rx_channel_id;
mbed_official 579:53297373a894 31 enum dma_status_flags tx_status;
mbed_official 579:53297373a894 32 enum dma_status_flags rx_status;
mbed_official 579:53297373a894 33 };
mbed_official 579:53297373a894 34
mbed_official 579:53297373a894 35 /** Allocate a channel for TX
mbed_official 579:53297373a894 36 *
mbed_official 579:53297373a894 37 * @param[in] sercom_index index of sercom instance
mbed_official 579:53297373a894 38 * @param[out] tx_id pointer to channel id
mbed_official 579:53297373a894 39 * @return allocated channel id
mbed_official 579:53297373a894 40 */
mbed_official 579:53297373a894 41 uint8_t sercom_setup_tx_channel(uint8_t sercom_index, uint8_t *tx_id);
mbed_official 579:53297373a894 42
mbed_official 579:53297373a894 43 /** Allocate a channel for RX
mbed_official 579:53297373a894 44 *
mbed_official 579:53297373a894 45 * @param[in] sercom_index index of sercom instance
mbed_official 579:53297373a894 46 * @param[out] rx_id pointer to channel id
mbed_official 579:53297373a894 47 * @return allocated channel id
mbed_official 579:53297373a894 48 */
mbed_official 579:53297373a894 49 uint8_t sercom_setup_rx_channel(uint8_t sercom_index, uint8_t *rx_id);
mbed_official 579:53297373a894 50
mbed_official 579:53297373a894 51 /** Release DMA channels if allocated
mbed_official 579:53297373a894 52 *
mbed_official 579:53297373a894 53 * @param[in] sercom_index index of sercom instance
mbed_official 579:53297373a894 54 * @return void
mbed_official 579:53297373a894 55 */
mbed_official 579:53297373a894 56 void sercom_release_channel(uint8_t sercom_index);
mbed_official 579:53297373a894 57
mbed_official 579:53297373a894 58 #ifdef __cplusplus
mbed_official 579:53297373a894 59 }
mbed_official 579:53297373a894 60 #endif
mbed_official 579:53297373a894 61
mbed_official 579:53297373a894 62 #endif /* _SERCOM_DMA_H */