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stmhal/hal: For F7 MCUs, expose DMA_CalcBaseAndBitshift function. 

It's needed by the DMA driver to do an efficient reinitialisation.  This
patch follows what is done in the F4 HAL.
This commit is contained in:
Damien George 2017-03-28 12:56:18 +11:00
parent ff927cb106
commit e997bb6328
1 changed files with 2 additions and 2 deletions
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4
stmhal/hal/f7/src/stm32f7xx_hal_dma.c
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@ -149,7 +149,7 @@ typedef struct
* @{ * @{
*/ */
static void DMA_SetConfig(DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t DstAddress, uint32_t DataLength); static void DMA_SetConfig(DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t DstAddress, uint32_t DataLength);
static uint32_t DMA_CalcBaseAndBitshift(DMA_HandleTypeDef *hdma); uint32_t DMA_CalcBaseAndBitshift(DMA_HandleTypeDef *hdma);
static HAL_StatusTypeDef DMA_CheckFifoParam(DMA_HandleTypeDef *hdma); static HAL_StatusTypeDef DMA_CheckFifoParam(DMA_HandleTypeDef *hdma);
/** /**
@ -1187,7 +1187,7 @@ static void DMA_SetConfig(DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t
* the configuration information for the specified DMA Stream. * the configuration information for the specified DMA Stream.
* @retval Stream base address * @retval Stream base address
*/ */
static uint32_t DMA_CalcBaseAndBitshift(DMA_HandleTypeDef *hdma) uint32_t DMA_CalcBaseAndBitshift(DMA_HandleTypeDef *hdma)
{ {
uint32_t stream_number = (((uint32_t)hdma->Instance & 0xFFU) - 16U) / 24U; uint32_t stream_number = (((uint32_t)hdma->Instance & 0xFFU) - 16U) / 24U;