Mouse code for the MacroRat
mbed-dev/targets/TARGET_Silicon_Labs/TARGET_EFM32/dma_api_HAL.h
- Committer:
- sahilmgandhi
- Date:
- 2017-05-14
- Revision:
- 18:6a4db94011d3
File content as of revision 18:6a4db94011d3:
/***************************************************************************//** * @file dma_api_HAL.h ******************************************************************************* * @section License * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b> ******************************************************************************* * * SPDX-License-Identifier: Apache-2.0 * * Licensed under the Apache License, Version 2.0 (the "License"); you may * not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * ******************************************************************************/ #ifndef MBED_DMA_API_HAL_H #define MBED_DMA_API_HAL_H #include <stdint.h> #include "dma_api.h" #include "em_device.h" #ifdef DMA_PRESENT #include "em_dma.h" #endif #ifdef LDMA_PRESENT #include "em_ldma.h" #endif #ifdef __cplusplus extern "C" { #endif /* Purpose of this file: extend dma_api.h to include EFM-specific DMA attributes */ #define DMA_CAP_2DCOPY (1 << 0) #define DMA_CAP_NONE (0 << 0) #if ( DMA_CHAN_COUNT <= 4 ) #define DMACTRL_CH_CNT 4 #define DMACTRL_ALIGNMENT 256 #elif ( ( DMA_CHAN_COUNT > 4 ) && ( DMA_CHAN_COUNT <= 8 ) ) #define DMACTRL_CH_CNT 8 #define DMACTRL_ALIGNMENT 256 #elif ( ( DMA_CHAN_COUNT > 8 ) && ( DMA_CHAN_COUNT <= 16 ) ) #define DMACTRL_CH_CNT 16 #define DMACTRL_ALIGNMENT 512 #else #error "Unsupported DMA channel count (dma_api.c)." #endif #ifdef LDMA_PRESENT typedef void (*LDMAx_CBFunc_t)(unsigned int channel, bool primary, void *user); typedef struct { LDMAx_CBFunc_t cbFunc; void *userPtr; } LDMAx_Callback_t; void LDMAx_StartTransfer( int ch, LDMA_TransferCfg_t *transfer, LDMA_Descriptor_t *descriptor, LDMAx_CBFunc_t cbFunc, void *userData ); bool LDMAx_ChannelEnabled( int ch ); #endif typedef struct { DMAUsage dmaUsageState; int dmaChannel; #ifndef LDMA_PRESENT DMA_CB_TypeDef dmaCallback; #else LDMAx_Callback_t dmaCallback; #endif } DMA_OPTIONS_t; typedef void (*DMACallback)(void); extern DMA_DESCRIPTOR_TypeDef dmaControlBlock[]; #ifdef __cplusplus } #endif #endif