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git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@4116 35acf78f-673a-0410-8e92-d51de3d6d3f4

master
gdisirio 2012-04-18 18:41:50 +00:00
parent 2446f558db
commit 0c9da34878
1 changed files with 7 additions and 10 deletions
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15
os/hal/platforms/STM32/sdc_lld.c
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@ -176,25 +176,22 @@ static bool_t sdc_lld_wait_transaction_end(SDCDriver *sdcp, uint32_t n,
return CH_FAILED; return CH_FAILED;
} }
/* Wait until DMA channel enabled to be sure that all data transferred.*/ /* Waits for transfer completion at DMA level, the the stream is
while (sdcp->dma->stream->CR & STM32_DMA_CR_EN) disabled and cleared.*/
; dmaWaitCompletion(sdcp->dma);
/* DMA event flags must be manually cleared.*/
dmaStreamClearInterrupt(sdcp->dma);
SDIO->ICR = STM32_SDIO_ICR_ALL_FLAGS; SDIO->ICR = STM32_SDIO_ICR_ALL_FLAGS;
SDIO->DCTRL = 0; SDIO->DCTRL = 0;
chSysUnlock(); chSysUnlock();
/* Wait until interrupt flags to be cleared.*/ /* Wait until interrupt flags to be cleared.*/
while (((DMA2->LISR) >> (sdcp->dma->ishift)) & STM32_DMA_ISR_TCIF) /* while (((DMA2->LISR) >> (sdcp->dma->ishift)) & STM32_DMA_ISR_TCIF)
dmaStreamClearInterrupt(sdcp->dma); dmaStreamClearInterrupt(sdcp->dma);*/
/* Finalize transaction.*/ /* Finalize transaction.*/
if (n > 1) if (n > 1)
return sdc_lld_send_cmd_short_crc(sdcp, SDC_CMD_STOP_TRANSMISSION, 0, resp); return sdc_lld_send_cmd_short_crc(sdcp, SDC_CMD_STOP_TRANSMISSION, 0, resp);
else
return CH_SUCCESS; return CH_SUCCESS;
} }