andreika-git
/
ChibiOS
mirror of https://github.com/andreika-git/ChibiOS.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Fixed bug #891. 

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@10784 35acf78f-673a-0410-8e92-d51de3d6d3f4
This commit is contained in:
Giovanni Di Sirio 2017-10-06 07:36:08 +00:00
parent 4d82132a47
commit 9c9ff7082a
2 changed files with 31 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

45
os/hal/ports/STM32/LLD/DMAv1/stm32_dma.c
View File

@ -183,9 +183,18 @@ dma_isr_redir_t _stm32_dma_isr_redir[STM32_DMA_STREAMS];
/*===========================================================================*/
/**
* @brief Mask of the allocated streams.
* @brief Masks regarding the allocated streams.
*/
static uint32_t dma_streams_mask;
static struct {
/**
* @brief Mask of the enabled streams.
*/
uint32_t streams_mask;
/**
* @brief Mask of the enabled stream ISRs.
*/
uint32_t isr_mask;
} dma;
/*===========================================================================*/
/* Driver local functions. */
@ -431,7 +440,8 @@ OSAL_IRQ_HANDLER(STM32_DMA2_CH7_HANDLER) {
void dmaInit(void) {
int i;
dma_streams_mask = 0U;
dma.streams_mask = 0U;
dma.isr_mask = 0U;
for (i = 0; i < STM32_DMA_STREAMS; i++) {
_stm32_dma_streams[i].channel->CCR = 0U;
_stm32_dma_isr_redir[i].dma_func = NULL;
@ -474,7 +484,7 @@ bool dmaStreamAllocate(const stm32_dma_stream_t *dmastp,
osalDbgCheck(dmastp != NULL);
/* Checks if the stream is already taken.*/
if ((dma_streams_mask & (1U << dmastp->selfindex)) != 0U)
if ((dma.streams_mask & (1U << dmastp->selfindex)) != 0U)
return true;
/* Installs the DMA handler.*/
@ -482,11 +492,11 @@ bool dmaStreamAllocate(const stm32_dma_stream_t *dmastp,
_stm32_dma_isr_redir[dmastp->selfindex].dma_param = param;
/* Enabling DMA clocks required by the current streams set.*/
if ((dma_streams_mask & STM32_DMA1_STREAMS_MASK) == 0U) {
if ((dma.streams_mask & STM32_DMA1_STREAMS_MASK) == 0U) {
rccEnableDMA1(false);
}
#if STM32_DMA2_NUM_CHANNELS > 0
if ((dma_streams_mask & STM32_DMA2_STREAMS_MASK) == 0U) {
if ((dma.streams_mask & STM32_DMA2_STREAMS_MASK) == 0U) {
rccEnableDMA2(false);
}
#endif
@ -495,15 +505,17 @@ bool dmaStreamAllocate(const stm32_dma_stream_t *dmastp,
dmaStreamDisable(dmastp);
dmastp->channel->CCR = STM32_DMA_CCR_RESET_VALUE;
/* Enables the associated IRQ vector if not alread enabled and if a
/* Enables the associated IRQ vector if not already enabled and if a
callback is defined.*/
if (((dma_streams_mask & dmastp->cmask) == 0U) &&
(func != NULL)) {
nvicEnableVector(dmastp->vector, priority);
if (func != NULL) {
if ((dma.isr_mask & dmastp->cmask) == 0U) {
nvicEnableVector(dmastp->vector, priority);
}
dma.isr_mask |= (1U << dmastp->selfindex);
}
/* Marks the stream as allocated.*/
dma_streams_mask |= (1U << dmastp->selfindex);
dma.streams_mask |= (1U << dmastp->selfindex);
return false;
}
@ -526,14 +538,15 @@ void dmaStreamRelease(const stm32_dma_stream_t *dmastp) {
osalDbgCheck(dmastp != NULL);
/* Check if the streams is not taken.*/
osalDbgAssert((dma_streams_mask & (1 << dmastp->selfindex)) != 0U,
osalDbgAssert((dma.streams_mask & (1 << dmastp->selfindex)) != 0U,
"not allocated");
/* Marks the stream as not allocated.*/
dma_streams_mask &= ~(1U << dmastp->selfindex);
dma.streams_mask &= ~(1U << dmastp->selfindex);
dma.isr_mask &= ~(1U << dmastp->selfindex);
/* Disables the associated IRQ vector if it is no more in use.*/
if ((dma_streams_mask & dmastp->cmask) == 0U) {
if ((dma.streams_mask & dmastp->cmask) == 0U) {
nvicDisableVector(dmastp->vector);
}
@ -542,11 +555,11 @@ void dmaStreamRelease(const stm32_dma_stream_t *dmastp) {
_stm32_dma_isr_redir[dmastp->selfindex].dma_param = NULL;
/* Shutting down clocks that are no more required, if any.*/
if ((dma_streams_mask & STM32_DMA1_STREAMS_MASK) == 0U) {
if ((dma.streams_mask & STM32_DMA1_STREAMS_MASK) == 0U) {
rccDisableDMA1(false);
}
#if STM32_DMA2_NUM_CHANNELS > 0
if ((dma_streams_mask & STM32_DMA2_STREAMS_MASK) == 0U) {
if ((dma.streams_mask & STM32_DMA2_STREAMS_MASK) == 0U) {
rccDisableDMA2(false);
}
#endif

2
readme.txt
View File

@ -133,6 +133,8 @@
dependencies and configuration directories. This makes possible
to have multiple non-conflicting makefiles in the same project.
Updated the various platform.mk implementing "smart build" mode.
- HAL: Fixed IRQ sharing issue in STM32 DMAv1 driver (bug #891)(backported
to 17.6.3 and 16.1.10).
- HAL: Fixed various STM32 registry problems (bug #889)(backported to 17.6.2
and 16.1.10).
- LIB: Fixed heap allocator returning unaligned blocks (bug #888)(backported