168 lines
5.2 KiB
C
168 lines
5.2 KiB
C
/**************************************************************************************************
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Filename: hal_dma.c
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Revised: $Date: 2010-07-21 16:20:44 -0700 (Wed, 21 Jul 2010) $
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Revision: $Revision: 23090 $
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Description: This file contains the interface to the DMA.
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Copyright 2007-2010 Texas Instruments Incorporated. All rights reserved.
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IMPORTANT: Your use of this Software is limited to those specific rights
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granted under the terms of a software license agreement between the user
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who downloaded the software, his/her employer (which must be your employer)
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and Texas Instruments Incorporated (the "License"). You may not use this
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Software unless you agree to abide by the terms of the License. The License
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limits your use, and you acknowledge, that the Software may not be modified,
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copied or distributed unless embedded on a Texas Instruments microcontroller
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or used solely and exclusively in conjunction with a Texas Instruments radio
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frequency transceiver, which is integrated into your product. Other than for
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the foregoing purpose, you may not use, reproduce, copy, prepare derivative
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works of, modify, distribute, perform, display or sell this Software and/or
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its documentation for any purpose.
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YOU FURTHER ACKNOWLEDGE AND AGREE THAT THE SOFTWARE AND DOCUMENTATION ARE
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PROVIDED “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED,
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INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY, TITLE,
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NON-INFRINGEMENT AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL
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TEXAS INSTRUMENTS OR ITS LICENSORS BE LIABLE OR OBLIGATED UNDER CONTRACT,
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NEGLIGENCE, STRICT LIABILITY, CONTRIBUTION, BREACH OF WARRANTY, OR OTHER
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LEGAL EQUITABLE THEORY ANY DIRECT OR INDIRECT DAMAGES OR EXPENSES
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INCLUDING BUT NOT LIMITED TO ANY INCIDENTAL, SPECIAL, INDIRECT, PUNITIVE
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OR CONSEQUENTIAL DAMAGES, LOST PROFITS OR LOST DATA, COST OF PROCUREMENT
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OF SUBSTITUTE GOODS, TECHNOLOGY, SERVICES, OR ANY CLAIMS BY THIRD PARTIES
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(INCLUDING BUT NOT LIMITED TO ANY DEFENSE THEREOF), OR OTHER SIMILAR COSTS.
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Should you have any questions regarding your right to use this Software,
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contact Texas Instruments Incorporated at www.TI.com.
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**************************************************************************************************/
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/*********************************************************************
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* INCLUDES
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*/
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#include "hal_types.h"
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#include "hal_defs.h"
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#include "hal_dma.h"
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#include "hal_mcu.h"
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#include "hal_uart.h"
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#if (defined HAL_IRGEN) && (HAL_IRGEN == TRUE)
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#include "hal_irgen.h"
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#endif
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#if (defined HAL_SPI) && (HAL_SPI == TRUE)
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#include "hal_spi.h"
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#endif
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#if ((defined HAL_DMA) && (HAL_DMA == TRUE))
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/*********************************************************************
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* MACROS
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*/
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/*********************************************************************
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* CONSTANTS
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*/
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/*********************************************************************
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* TYPEDEFS
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*/
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/*********************************************************************
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* GLOBAL VARIABLES
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*/
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halDMADesc_t dmaCh0;
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halDMADesc_t dmaCh1234[4];
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/*********************************************************************
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* GLOBAL FUNCTIONS
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*/
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/*********************************************************************
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* LOCAL VARIABLES
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*/
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/*********************************************************************
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* LOCAL FUNCTIONS
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*/
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/******************************************************************************
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* @fn HalDMAInit
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*
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* @brief DMA Interrupt Service Routine
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*
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* @param None
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*
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* @return None
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*****************************************************************************/
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void HalDmaInit( void )
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{
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HAL_DMA_SET_ADDR_DESC0( &dmaCh0 );
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HAL_DMA_SET_ADDR_DESC1234( dmaCh1234 );
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#if (HAL_UART_DMA || \
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((defined HAL_SPI) && (HAL_SPI == TRUE)) || \
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((defined HAL_IRGEN) && (HAL_IRGEN == TRUE)))
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DMAIE = 1;
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#endif
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}
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#if (HAL_UART_DMA || \
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((defined HAL_SPI) && (HAL_SPI == TRUE)) || \
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((defined HAL_IRGEN) && (HAL_IRGEN == TRUE)))
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/******************************************************************************
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* @fn HalDMAInit
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*
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* @brief DMA Interrupt Service Routine
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*
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* @param None
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*
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* @return None
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*****************************************************************************/
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HAL_ISR_FUNCTION( halDmaIsr, DMA_VECTOR )
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{
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extern void HalUARTIsrDMA(void);
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HAL_ENTER_ISR();
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DMAIF = 0;
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#if HAL_UART_DMA
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if (HAL_DMA_CHECK_IRQ(HAL_DMA_CH_TX))
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{
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HalUARTIsrDMA();
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}
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#endif // HAL_UART_DMA
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#if (defined HAL_SPI) && (HAL_SPI == TRUE)
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if ( HAL_DMA_CHECK_IRQ( HAL_DMA_CH_RX ) )
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{
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HAL_DMA_CLEAR_IRQ( HAL_DMA_CH_RX );
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HalSpiRxIsr();
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}
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if ( HAL_DMA_CHECK_IRQ( HAL_DMA_CH_TX ) )
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{
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HAL_DMA_CLEAR_IRQ( HAL_DMA_CH_TX );
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HalSpiTxIsr();
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}
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#endif // (defined HAL_SPI) && (HAL_SPI == TRUE)
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#if (defined HAL_IRGEN) && (HAL_IRGEN == TRUE)
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if ( HAL_IRGEN == TRUE && HAL_DMA_CHECK_IRQ( HAL_IRGEN_DMA_CH ) )
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{
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HAL_DMA_CLEAR_IRQ( HAL_IRGEN_DMA_CH );
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HalIrGenDmaIsr();
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}
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#endif // (defined HAL_IRGEN) && (HAL_IRGEN == TRUE)
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CLEAR_SLEEP_MODE();
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HAL_EXIT_ISR();
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}
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#endif
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#endif // #if ((defined HAL_DMA) && (HAL_DMA == TRUE))
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/******************************************************************************
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******************************************************************************/
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