MacroRat / MouseCode

Mouse code for the MacroRat

Dependencies:   ITG3200 QEI

mbed-dev/targets/TARGET_Atmel/TARGET_SAM_CortexM0P/dma_api_HAL.h@46:b156ef445742, 2017-06-03 (annotated)

Committer:
sahilmgandhi
Date:
Sat Jun 03 00:22:44 2017 +0000
Revision:
46:b156ef445742
Parent:
18:6a4db94011d3 
Final code for internal battlebot competition.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
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 _DMA_API_HAL_H
sahilmgandhi 18:6a4db94011d3 18 #define _DMA_API_HAL_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 enum dma_status_flags {
sahilmgandhi 18:6a4db94011d3 28 DMA_NOT_USED = (uint32_t)1,
sahilmgandhi 18:6a4db94011d3 29 DMA_ALLOCATED = (DMA_NOT_USED << 1),
sahilmgandhi 18:6a4db94011d3 30 DMA_TEMPORARY = (DMA_NOT_USED << 2),
sahilmgandhi 18:6a4db94011d3 31 DMA_ERROR = (DMA_NOT_USED << 3),
sahilmgandhi 18:6a4db94011d3 32 };
sahilmgandhi 18:6a4db94011d3 33
sahilmgandhi 18:6a4db94011d3 34 /* No other capabilities supported now */
sahilmgandhi 18:6a4db94011d3 35 #define DMA_CAP_NONE 0
sahilmgandhi 18:6a4db94011d3 36
sahilmgandhi 18:6a4db94011d3 37 #define DMA_ADDRESS_INC_DISABLE 0
sahilmgandhi 18:6a4db94011d3 38 #define DMA_ADDRESS_INC_ENABLE 1
sahilmgandhi 18:6a4db94011d3 39
sahilmgandhi 18:6a4db94011d3 40 #define DMA_TRANSFER_ERROR ((uint32_t)1 << 1)
sahilmgandhi 18:6a4db94011d3 41 #define DMA_TRANSFER_COMPLETE ((uint32_t)1 << 2)
sahilmgandhi 18:6a4db94011d3 42
sahilmgandhi 18:6a4db94011d3 43 #define DMA_EVENT_ALL (DMA_TRANSFER_ERROR | DMA_TRANSFER_COMPLETE)
sahilmgandhi 18:6a4db94011d3 44
sahilmgandhi 18:6a4db94011d3 45
sahilmgandhi 18:6a4db94011d3 46 COMPILER_ALIGNED(16)
sahilmgandhi 18:6a4db94011d3 47 struct dma_instance_s {
sahilmgandhi 18:6a4db94011d3 48 struct dma_resource resource;
sahilmgandhi 18:6a4db94011d3 49 DmacDescriptor descriptor;
sahilmgandhi 18:6a4db94011d3 50 uint8_t status;
sahilmgandhi 18:6a4db94011d3 51 uint32_t events;
sahilmgandhi 18:6a4db94011d3 52 uint32_t handler;
sahilmgandhi 18:6a4db94011d3 53 };
sahilmgandhi 18:6a4db94011d3 54
sahilmgandhi 18:6a4db94011d3 55 /** Setup a DMA descriptor for specified resource
sahilmgandhi 18:6a4db94011d3 56 *
sahilmgandhi 18:6a4db94011d3 57 * @param[in] channel_index DMA channel id
sahilmgandhi 18:6a4db94011d3 58 * @param[in] src source address
sahilmgandhi 18:6a4db94011d3 59 * @param[in] src_inc_enable source address auto increment enable flag
sahilmgandhi 18:6a4db94011d3 60 * @param[in] desc destination address
sahilmgandhi 18:6a4db94011d3 61 * @param[in] desc_inc_enable destination address auto increment enable flag
sahilmgandhi 18:6a4db94011d3 62 * @param[in] length length of data to be transferred
sahilmgandhi 18:6a4db94011d3 63 * @param[in] beat_size beat size to be set
sahilmgandhi 18:6a4db94011d3 64 * @return void
sahilmgandhi 18:6a4db94011d3 65 */
sahilmgandhi 18:6a4db94011d3 66 void dma_setup_transfer(uint8_t channelid, uint32_t src, bool src_inc_enable, uint32_t desc, bool desc_inc_enable, uint32_t length, uint8_t beat_size);
sahilmgandhi 18:6a4db94011d3 67
sahilmgandhi 18:6a4db94011d3 68 /** Start DMA transfer
sahilmgandhi 18:6a4db94011d3 69 *
sahilmgandhi 18:6a4db94011d3 70 * Kick starts transfer in DMA channel with specified channel id
sahilmgandhi 18:6a4db94011d3 71 * @param[in] channelid Channel id of DMA channel
sahilmgandhi 18:6a4db94011d3 72 * @return non zero if success otherwise zero
sahilmgandhi 18:6a4db94011d3 73 */
sahilmgandhi 18:6a4db94011d3 74 bool dma_start_transfer(int channelid);
sahilmgandhi 18:6a4db94011d3 75
sahilmgandhi 18:6a4db94011d3 76 /** DMA channel busy check
sahilmgandhi 18:6a4db94011d3 77 *
sahilmgandhi 18:6a4db94011d3 78 * To check whether DMA channel is busy with a job or not
sahilmgandhi 18:6a4db94011d3 79 * @param[in] channelid Channel id of DMA channel
sahilmgandhi 18:6a4db94011d3 80 * @return non zero if busy otherwise zero
sahilmgandhi 18:6a4db94011d3 81 */
sahilmgandhi 18:6a4db94011d3 82 bool dma_busy(int channelid);
sahilmgandhi 18:6a4db94011d3 83
sahilmgandhi 18:6a4db94011d3 84 /** DMA channel transfer completion check
sahilmgandhi 18:6a4db94011d3 85 *
sahilmgandhi 18:6a4db94011d3 86 * To check whether DMA channel job is completed or not
sahilmgandhi 18:6a4db94011d3 87 * @param[in] channelid Channel id of DMA channel
sahilmgandhi 18:6a4db94011d3 88 * @return non zero if busy otherwise zero
sahilmgandhi 18:6a4db94011d3 89 */
sahilmgandhi 18:6a4db94011d3 90 bool dma_is_transfer_complete(int channelid);
sahilmgandhi 18:6a4db94011d3 91
sahilmgandhi 18:6a4db94011d3 92 /** Registers callback function for DMA
sahilmgandhi 18:6a4db94011d3 93 *
sahilmgandhi 18:6a4db94011d3 94 * Registers callback function for DMA for specified events
sahilmgandhi 18:6a4db94011d3 95 * @param[in] channelid Channel id of DMA channel
sahilmgandhi 18:6a4db94011d3 96 * @param[in] handler Callback function pointer
sahilmgandhi 18:6a4db94011d3 97 * @param[in] event Events mask
sahilmgandhi 18:6a4db94011d3 98 * @return void
sahilmgandhi 18:6a4db94011d3 99 */
sahilmgandhi 18:6a4db94011d3 100 void dma_set_handler(int channelid, uint32_t handler, uint32_t event);
sahilmgandhi 18:6a4db94011d3 101
sahilmgandhi 18:6a4db94011d3 102 #ifdef __cplusplus
sahilmgandhi 18:6a4db94011d3 103 }
sahilmgandhi 18:6a4db94011d3 104 #endif
sahilmgandhi 18:6a4db94011d3 105
sahilmgandhi 18:6a4db94011d3 106 #endif /* _DMA_API_HAL_H */