en 129
fix LPC812 PWM
Fork of
mbed-dev
by 
mbed official
Diff: targets/cmsis/TARGET_STM/TARGET_STM32F7/stm32f7xx_hal_dma.c
- Revision:
- 83:a036322b8637
- Parent:
- 0:9b334a45a8ff
--- a/targets/cmsis/TARGET_STM/TARGET_STM32F7/stm32f7xx_hal_dma.c Sat Mar 05 06:00:11 2016 +0000
+++ b/targets/cmsis/TARGET_STM/TARGET_STM32F7/stm32f7xx_hal_dma.c Mon Mar 07 10:00:14 2016 +0000
@@ -2,8 +2,8 @@
******************************************************************************
* @file stm32f7xx_hal_dma.c
* @author MCD Application Team
- * @version V1.0.1
- * @date 25-June-2015
+ * @version V1.0.4
+ * @date 09-December-2015
* @brief DMA HAL module driver.
*
* This file provides firmware functions to manage the following
@@ -73,8 +73,6 @@
(+) __HAL_DMA_ENABLE: Enable the specified DMA Stream.
(+) __HAL_DMA_DISABLE: Disable the specified DMA Stream.
(+) __HAL_DMA_GET_FS: Return the current DMA Stream FIFO filled level.
- (+) __HAL_DMA_GET_FLAG: Get the DMA Stream pending flags.
- (+) __HAL_DMA_CLEAR_FLAG: Clear the DMA Stream pending flags.
(+) __HAL_DMA_ENABLE_IT: Enable the specified DMA Stream interrupts.
(+) __HAL_DMA_DISABLE_IT: Disable the specified DMA Stream interrupts.
(+) __HAL_DMA_GET_IT_SOURCE: Check whether the specified DMA Stream interrupt has occurred or not.
@@ -128,6 +126,13 @@
#ifdef HAL_DMA_MODULE_ENABLED
/* Private types -------------------------------------------------------------*/
+typedef struct
+{
+ __IO uint32_t ISR; /*!< DMA interrupt status register */
+ __IO uint32_t Reserved0;
+ __IO uint32_t IFCR; /*!< DMA interrupt flag clear register */
+} DMA_Base_Registers;
+
/* Private variables ---------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
/** @addtogroup DMA_Private_Constants
@@ -143,6 +148,8 @@
* @{
*/
static void DMA_SetConfig(DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t DstAddress, uint32_t DataLength);
+static uint32_t DMA_CalcBaseAndBitshift(DMA_HandleTypeDef *hdma);
+
/**
* @brief Sets the DMA Transfer parameter.
* @param hdma: pointer to a DMA_HandleTypeDef structure that contains
@@ -291,6 +298,10 @@
/* Write to DMA Stream FCR */
hdma->Instance->FCR = tmp;
+ /* Initialize StreamBaseAddress and StreamIndex parameters to be used to calculate
+ DMA steam Base Address needed by HAL_DMA_IRQHandler() and HAL_DMA_PollForTransfer() */
+ DMA_CalcBaseAndBitshift(hdma);
+
/* Initialize the error code */
hdma->ErrorCode = HAL_DMA_ERROR_NONE;
@@ -308,6 +319,8 @@
*/
HAL_StatusTypeDef HAL_DMA_DeInit(DMA_HandleTypeDef *hdma)
{
+ DMA_Base_Registers *regs;
+
/* Check the DMA peripheral state */
if(hdma == NULL)
{
@@ -341,12 +354,11 @@
/* Reset DMA Streamx FIFO control register */
hdma->Instance->FCR = (uint32_t)0x00000021;
- /* Clear all flags */
- __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_DME_FLAG_INDEX(hdma));
- __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_TC_FLAG_INDEX(hdma));
- __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_TE_FLAG_INDEX(hdma));
- __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_FE_FLAG_INDEX(hdma));
- __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_HT_FLAG_INDEX(hdma));
+ /* Get DMA steam Base Address */
+ regs = (DMA_Base_Registers *)DMA_CalcBaseAndBitshift(hdma);
+
+ /* Clear all interrupt flags at correct offset within the register */
+ regs->IFCR = 0x3F << hdma->StreamIndex;
/* Initialize the error code */
hdma->ErrorCode = HAL_DMA_ERROR_NONE;
@@ -440,20 +452,9 @@
/* Configure the source, destination address and the data length */
DMA_SetConfig(hdma, SrcAddress, DstAddress, DataLength);
- /* Enable the transfer complete interrupt */
- __HAL_DMA_ENABLE_IT(hdma, DMA_IT_TC);
-
- /* Enable the Half transfer complete interrupt */
- __HAL_DMA_ENABLE_IT(hdma, DMA_IT_HT);
-
- /* Enable the transfer Error interrupt */
- __HAL_DMA_ENABLE_IT(hdma, DMA_IT_TE);
-
- /* Enable the FIFO Error interrupt */
- __HAL_DMA_ENABLE_IT(hdma, DMA_IT_FE);
-
- /* Enable the direct mode Error interrupt */
- __HAL_DMA_ENABLE_IT(hdma, DMA_IT_DME);
+ /* Enable all interrupts */
+ hdma->Instance->CR |= DMA_IT_TC | DMA_IT_HT | DMA_IT_TE | DMA_IT_DME;
+ hdma->Instance->FCR |= DMA_IT_FE;
/* Enable the Peripheral */
__HAL_DMA_ENABLE(hdma);
@@ -523,26 +524,31 @@
uint32_t temp, tmp, tmp1, tmp2;
uint32_t tickstart = 0;
+ /* calculate DMA base and stream number */
+ DMA_Base_Registers *regs;
+
+ regs = (DMA_Base_Registers *)hdma->StreamBaseAddress;
+
/* Get the level transfer complete flag */
if(CompleteLevel == HAL_DMA_FULL_TRANSFER)
{
/* Transfer Complete flag */
- temp = __HAL_DMA_GET_TC_FLAG_INDEX(hdma);
+ temp = DMA_FLAG_TCIF0_4 << hdma->StreamIndex;
}
else
{
/* Half Transfer Complete flag */
- temp = __HAL_DMA_GET_HT_FLAG_INDEX(hdma);
+ temp = DMA_FLAG_HTIF0_4 << hdma->StreamIndex;
}
/* Get tick */
tickstart = HAL_GetTick();
- while(__HAL_DMA_GET_FLAG(hdma, temp) == RESET)
+ while((regs->ISR & temp) == RESET)
{
- tmp = __HAL_DMA_GET_FLAG(hdma, __HAL_DMA_GET_TE_FLAG_INDEX(hdma));
- tmp1 = __HAL_DMA_GET_FLAG(hdma, __HAL_DMA_GET_FE_FLAG_INDEX(hdma));
- tmp2 = __HAL_DMA_GET_FLAG(hdma, __HAL_DMA_GET_DME_FLAG_INDEX(hdma));
+ tmp = regs->ISR & (DMA_FLAG_TEIF0_4 << hdma->StreamIndex);
+ tmp1 = regs->ISR & (DMA_FLAG_FEIF0_4 << hdma->StreamIndex);
+ tmp2 = regs->ISR & (DMA_FLAG_DMEIF0_4 << hdma->StreamIndex);
if((tmp != RESET) || (tmp1 != RESET) || (tmp2 != RESET))
{
if(tmp != RESET)
@@ -551,7 +557,7 @@
hdma->ErrorCode |= HAL_DMA_ERROR_TE;
/* Clear the transfer error flag */
- __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_TE_FLAG_INDEX(hdma));
+ regs->IFCR = DMA_FLAG_TEIF0_4 << hdma->StreamIndex;
}
if(tmp1 != RESET)
{
@@ -559,7 +565,7 @@
hdma->ErrorCode |= HAL_DMA_ERROR_FE;
/* Clear the FIFO error flag */
- __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_FE_FLAG_INDEX(hdma));
+ regs->IFCR = DMA_FLAG_FEIF0_4 << hdma->StreamIndex;
}
if(tmp2 != RESET)
{
@@ -567,7 +573,7 @@
hdma->ErrorCode |= HAL_DMA_ERROR_DME;
/* Clear the Direct Mode error flag */
- __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_DME_FLAG_INDEX(hdma));
+ regs->IFCR = DMA_FLAG_DMEIF0_4 << hdma->StreamIndex;
}
/* Change the DMA state */
hdma->State= HAL_DMA_STATE_ERROR;
@@ -598,14 +604,12 @@
if(CompleteLevel == HAL_DMA_FULL_TRANSFER)
{
+ /* Clear the half transfer and transfer complete flags */
+ regs->IFCR = (DMA_FLAG_HTIF0_4 | DMA_FLAG_TCIF0_4) << hdma->StreamIndex;
+
/* Multi_Buffering mode enabled */
if(((hdma->Instance->CR) & (uint32_t)(DMA_SxCR_DBM)) != 0)
{
- /* Clear the half transfer complete flag */
- __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_HT_FLAG_INDEX(hdma));
- /* Clear the transfer complete flag */
- __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_TC_FLAG_INDEX(hdma));
-
/* Current memory buffer used is Memory 0 */
if((hdma->Instance->CR & DMA_SxCR_CT) == 0)
{
@@ -621,11 +625,6 @@
}
else
{
- /* Clear the half transfer complete flag */
- __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_HT_FLAG_INDEX(hdma));
- /* Clear the transfer complete flag */
- __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_TC_FLAG_INDEX(hdma));
-
/* The selected Streamx EN bit is cleared (DMA is disabled and all transfers
are complete) */
hdma->State = HAL_DMA_STATE_READY_MEM0;
@@ -634,13 +633,13 @@
__HAL_UNLOCK(hdma);
}
else
- {
+ {
+ /* Clear the half transfer complete flag */
+ regs->IFCR = DMA_FLAG_HTIF0_4 << hdma->StreamIndex;
+
/* Multi_Buffering mode enabled */
if(((hdma->Instance->CR) & (uint32_t)(DMA_SxCR_DBM)) != 0)
{
- /* Clear the half transfer complete flag */
- __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_HT_FLAG_INDEX(hdma));
-
/* Current memory buffer used is Memory 0 */
if((hdma->Instance->CR & DMA_SxCR_CT) == 0)
{
@@ -656,9 +655,6 @@
}
else
{
- /* Clear the half transfer complete flag */
- __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_HT_FLAG_INDEX(hdma));
-
/* Change DMA peripheral state */
hdma->State = HAL_DMA_STATE_READY_HALF_MEM0;
}
@@ -674,8 +670,13 @@
*/
void HAL_DMA_IRQHandler(DMA_HandleTypeDef *hdma)
{
+ /* calculate DMA base and stream number */
+ DMA_Base_Registers *regs;
+
+ regs = (DMA_Base_Registers *)hdma->StreamBaseAddress;
+
/* Transfer Error Interrupt management ***************************************/
- if(__HAL_DMA_GET_FLAG(hdma, __HAL_DMA_GET_TE_FLAG_INDEX(hdma)) != RESET)
+ if ((regs->ISR & (DMA_FLAG_TEIF0_4 << hdma->StreamIndex)) != RESET)
{
if(__HAL_DMA_GET_IT_SOURCE(hdma, DMA_IT_TE) != RESET)
{
@@ -683,7 +684,7 @@
__HAL_DMA_DISABLE_IT(hdma, DMA_IT_TE);
/* Clear the transfer error flag */
- __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_TE_FLAG_INDEX(hdma));
+ regs->IFCR = DMA_FLAG_TEIF0_4 << hdma->StreamIndex;
/* Update error code */
hdma->ErrorCode |= HAL_DMA_ERROR_TE;
@@ -702,7 +703,7 @@
}
}
/* FIFO Error Interrupt management ******************************************/
- if(__HAL_DMA_GET_FLAG(hdma, __HAL_DMA_GET_FE_FLAG_INDEX(hdma)) != RESET)
+ if ((regs->ISR & (DMA_FLAG_FEIF0_4 << hdma->StreamIndex)) != RESET)
{
if(__HAL_DMA_GET_IT_SOURCE(hdma, DMA_IT_FE) != RESET)
{
@@ -710,7 +711,7 @@
__HAL_DMA_DISABLE_IT(hdma, DMA_IT_FE);
/* Clear the FIFO error flag */
- __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_FE_FLAG_INDEX(hdma));
+ regs->IFCR = DMA_FLAG_FEIF0_4 << hdma->StreamIndex;
/* Update error code */
hdma->ErrorCode |= HAL_DMA_ERROR_FE;
@@ -729,7 +730,7 @@
}
}
/* Direct Mode Error Interrupt management ***********************************/
- if(__HAL_DMA_GET_FLAG(hdma, __HAL_DMA_GET_DME_FLAG_INDEX(hdma)) != RESET)
+ if ((regs->ISR & (DMA_FLAG_DMEIF0_4 << hdma->StreamIndex)) != RESET)
{
if(__HAL_DMA_GET_IT_SOURCE(hdma, DMA_IT_DME) != RESET)
{
@@ -737,7 +738,7 @@
__HAL_DMA_DISABLE_IT(hdma, DMA_IT_DME);
/* Clear the direct mode error flag */
- __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_DME_FLAG_INDEX(hdma));
+ regs->IFCR = DMA_FLAG_DMEIF0_4 << hdma->StreamIndex;
/* Update error code */
hdma->ErrorCode |= HAL_DMA_ERROR_DME;
@@ -756,7 +757,7 @@
}
}
/* Half Transfer Complete Interrupt management ******************************/
- if(__HAL_DMA_GET_FLAG(hdma, __HAL_DMA_GET_HT_FLAG_INDEX(hdma)) != RESET)
+ if ((regs->ISR & (DMA_FLAG_HTIF0_4 << hdma->StreamIndex)) != RESET)
{
if(__HAL_DMA_GET_IT_SOURCE(hdma, DMA_IT_HT) != RESET)
{
@@ -764,7 +765,7 @@
if(((hdma->Instance->CR) & (uint32_t)(DMA_SxCR_DBM)) != 0)
{
/* Clear the half transfer complete flag */
- __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_HT_FLAG_INDEX(hdma));
+ regs->IFCR = DMA_FLAG_HTIF0_4 << hdma->StreamIndex;
/* Current memory buffer used is Memory 0 */
if((hdma->Instance->CR & DMA_SxCR_CT) == 0)
@@ -788,7 +789,7 @@
__HAL_DMA_DISABLE_IT(hdma, DMA_IT_HT);
}
/* Clear the half transfer complete flag */
- __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_HT_FLAG_INDEX(hdma));
+ regs->IFCR = DMA_FLAG_HTIF0_4 << hdma->StreamIndex;
/* Change DMA peripheral state */
hdma->State = HAL_DMA_STATE_READY_HALF_MEM0;
@@ -802,14 +803,14 @@
}
}
/* Transfer Complete Interrupt management ***********************************/
- if(__HAL_DMA_GET_FLAG(hdma, __HAL_DMA_GET_TC_FLAG_INDEX(hdma)) != RESET)
+ if ((regs->ISR & (DMA_FLAG_TCIF0_4 << hdma->StreamIndex)) != RESET)
{
if(__HAL_DMA_GET_IT_SOURCE(hdma, DMA_IT_TC) != RESET)
{
if(((hdma->Instance->CR) & (uint32_t)(DMA_SxCR_DBM)) != 0)
{
/* Clear the transfer complete flag */
- __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_TC_FLAG_INDEX(hdma));
+ regs->IFCR = DMA_FLAG_TCIF0_4 << hdma->StreamIndex;
/* Current memory buffer used is Memory 1 */
if((hdma->Instance->CR & DMA_SxCR_CT) == 0)
@@ -839,7 +840,7 @@
__HAL_DMA_DISABLE_IT(hdma, DMA_IT_TC);
}
/* Clear the transfer complete flag */
- __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_TC_FLAG_INDEX(hdma));
+ regs->IFCR = DMA_FLAG_TCIF0_4 << hdma->StreamIndex;
/* Update error code */
hdma->ErrorCode |= HAL_DMA_ERROR_NONE;
@@ -860,6 +861,7 @@
}
}
+
/**
* @}
*/
@@ -906,6 +908,33 @@
*/
/**
+ * @brief Returns the DMA Stream base address depending on stream number
+ * @param hdma: pointer to a DMA_HandleTypeDef structure that contains
+ * the configuration information for the specified DMA Stream.
+ * @retval Stream base address
+ */
+static uint32_t DMA_CalcBaseAndBitshift(DMA_HandleTypeDef *hdma)
+{
+ uint32_t stream_number = (((uint32_t)hdma->Instance & 0xFF) - 16) / 24;
+
+ /* lookup table for necessary bitshift of flags within status registers */
+ static const uint8_t flagBitshiftOffset[8] = {0, 6, 16, 22, 0, 6, 16, 22};
+ hdma->StreamIndex = flagBitshiftOffset[stream_number];
+
+ if (stream_number > 3)
+ {
+ /* return pointer to HISR and HIFCR */
+ hdma->StreamBaseAddress = (((uint32_t)hdma->Instance & (uint32_t)(~0x3FF)) + 4);
+ }
+ else
+ {
+ /* return pointer to LISR and LIFCR */
+ hdma->StreamBaseAddress = ((uint32_t)hdma->Instance & (uint32_t)(~0x3FF));
+ }
+
+ return hdma->StreamBaseAddress;
+}
+/**
* @}
*/