Mouse code for the MacroRat
mbed-dev/targets/TARGET_Atmel/TARGET_SAM_CortexM0P/sercom_dma.h@18:6a4db94011d3, 2017-05-14 (annotated)
- Committer:
- sahilmgandhi
- Date:
- Sun May 14 23:18:57 2017 +0000
- Revision:
- 18:6a4db94011d3
Publishing again
Who changed what in which revision?
User | Revision | Line number | New contents of line |
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sahilmgandhi | 18:6a4db94011d3 | 1 | /* mbed Microcontroller Library |
sahilmgandhi | 18:6a4db94011d3 | 2 | * Copyright (c) 2006-2015 ARM Limited |
sahilmgandhi | 18:6a4db94011d3 | 3 | * |
sahilmgandhi | 18:6a4db94011d3 | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
sahilmgandhi | 18:6a4db94011d3 | 5 | * you may not use this file except in compliance with the License. |
sahilmgandhi | 18:6a4db94011d3 | 6 | * You may obtain a copy of the License at |
sahilmgandhi | 18:6a4db94011d3 | 7 | * |
sahilmgandhi | 18:6a4db94011d3 | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
sahilmgandhi | 18:6a4db94011d3 | 9 | * |
sahilmgandhi | 18:6a4db94011d3 | 10 | * Unless required by applicable law or agreed to in writing, software |
sahilmgandhi | 18:6a4db94011d3 | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
sahilmgandhi | 18:6a4db94011d3 | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
sahilmgandhi | 18:6a4db94011d3 | 13 | * See the License for the specific language governing permissions and |
sahilmgandhi | 18:6a4db94011d3 | 14 | * limitations under the License. |
sahilmgandhi | 18:6a4db94011d3 | 15 | */ |
sahilmgandhi | 18:6a4db94011d3 | 16 | |
sahilmgandhi | 18:6a4db94011d3 | 17 | #ifndef _SERCOM_DMA_H |
sahilmgandhi | 18:6a4db94011d3 | 18 | #define _SERCOM_DMA_H |
sahilmgandhi | 18:6a4db94011d3 | 19 | |
sahilmgandhi | 18:6a4db94011d3 | 20 | #ifdef __cplusplus |
sahilmgandhi | 18:6a4db94011d3 | 21 | extern "C" { |
sahilmgandhi | 18:6a4db94011d3 | 22 | #endif |
sahilmgandhi | 18:6a4db94011d3 | 23 | |
sahilmgandhi | 18:6a4db94011d3 | 24 | #include <compiler.h> |
sahilmgandhi | 18:6a4db94011d3 | 25 | #include "dma.h" |
sahilmgandhi | 18:6a4db94011d3 | 26 | |
sahilmgandhi | 18:6a4db94011d3 | 27 | |
sahilmgandhi | 18:6a4db94011d3 | 28 | struct sercom_dma { |
sahilmgandhi | 18:6a4db94011d3 | 29 | uint8_t tx_channel_id; |
sahilmgandhi | 18:6a4db94011d3 | 30 | uint8_t rx_channel_id; |
sahilmgandhi | 18:6a4db94011d3 | 31 | enum dma_status_flags tx_status; |
sahilmgandhi | 18:6a4db94011d3 | 32 | enum dma_status_flags rx_status; |
sahilmgandhi | 18:6a4db94011d3 | 33 | }; |
sahilmgandhi | 18:6a4db94011d3 | 34 | |
sahilmgandhi | 18:6a4db94011d3 | 35 | /** Allocate a channel for TX |
sahilmgandhi | 18:6a4db94011d3 | 36 | * |
sahilmgandhi | 18:6a4db94011d3 | 37 | * @param[in] sercom_index index of sercom instance |
sahilmgandhi | 18:6a4db94011d3 | 38 | * @param[out] tx_id pointer to channel id |
sahilmgandhi | 18:6a4db94011d3 | 39 | * @return allocated channel id |
sahilmgandhi | 18:6a4db94011d3 | 40 | */ |
sahilmgandhi | 18:6a4db94011d3 | 41 | uint8_t sercom_setup_tx_channel(uint8_t sercom_index, uint8_t *tx_id); |
sahilmgandhi | 18:6a4db94011d3 | 42 | |
sahilmgandhi | 18:6a4db94011d3 | 43 | /** Allocate a channel for RX |
sahilmgandhi | 18:6a4db94011d3 | 44 | * |
sahilmgandhi | 18:6a4db94011d3 | 45 | * @param[in] sercom_index index of sercom instance |
sahilmgandhi | 18:6a4db94011d3 | 46 | * @param[out] rx_id pointer to channel id |
sahilmgandhi | 18:6a4db94011d3 | 47 | * @return allocated channel id |
sahilmgandhi | 18:6a4db94011d3 | 48 | */ |
sahilmgandhi | 18:6a4db94011d3 | 49 | uint8_t sercom_setup_rx_channel(uint8_t sercom_index, uint8_t *rx_id); |
sahilmgandhi | 18:6a4db94011d3 | 50 | |
sahilmgandhi | 18:6a4db94011d3 | 51 | /** Release DMA channels if allocated |
sahilmgandhi | 18:6a4db94011d3 | 52 | * |
sahilmgandhi | 18:6a4db94011d3 | 53 | * @param[in] sercom_index index of sercom instance |
sahilmgandhi | 18:6a4db94011d3 | 54 | * @return void |
sahilmgandhi | 18:6a4db94011d3 | 55 | */ |
sahilmgandhi | 18:6a4db94011d3 | 56 | void sercom_release_channel(uint8_t sercom_index); |
sahilmgandhi | 18:6a4db94011d3 | 57 | |
sahilmgandhi | 18:6a4db94011d3 | 58 | #ifdef __cplusplus |
sahilmgandhi | 18:6a4db94011d3 | 59 | } |
sahilmgandhi | 18:6a4db94011d3 | 60 | #endif |
sahilmgandhi | 18:6a4db94011d3 | 61 | |
sahilmgandhi | 18:6a4db94011d3 | 62 | #endif /* _SERCOM_DMA_H */ |