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re-structured f4ll_c (introducing src, inc)

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This commit is contained in:
Attila Body 2019-12-17 17:53:26 +01:00
parent f2fe20b3a4
commit b98e0657ca
15 changed files with 4 additions and 3 deletions
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52
components/f4ll_c/src/memcpydma.c Normal file
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/*
* memcpy_dma.c
*
* Created on: Oct 1, 2019
* Author: abody
*/
#include <f4ll_c/dmahelper.h>
#include <f4ll_c/memcpydma.h>
#ifndef DIAG_INTERRUPT_IN
# define DIAG_INTERRUPT_IN()
#endif
#ifndef DIAG_INTERRUPT_OUT
# define DIAG_INTERRUPT_OUT()
#endif
#ifndef MOCKABLE
#define MOCKABLE(x) x
#endif // MOCKABLE
volatile uint8_t g_memcpyDmaBusy = 0;
static struct dmainfo_t g_memcpyDmaInfo;
void MOCKABLE(Mcd_Init)(DMA_TypeDef *dma, uint32_t stream)
{
Dma_Init(&g_memcpyDmaInfo, dma, stream);
LL_DMA_EnableIT_TC(dma, stream);
}
void * MOCKABLE(Mcd_Copy)(void *dst, void const *src, size_t length)
{
LL_DMA_SetM2MSrcAddress(g_memcpyDmaInfo.dma, g_memcpyDmaInfo.stream, (uint32_t)src);
LL_DMA_SetM2MDstAddress(g_memcpyDmaInfo.dma, g_memcpyDmaInfo.stream, (uint32_t)dst);
LL_DMA_SetDataLength(g_memcpyDmaInfo.dma, g_memcpyDmaInfo.stream, (length+3)/4 );
g_memcpyDmaBusy = 1;
LL_DMA_EnableStream(g_memcpyDmaInfo.dma, g_memcpyDmaInfo.stream);
while(g_memcpyDmaBusy);
return dst;
}
void MOCKABLE(Mcd_HandleDmaIrq)(void)
{
DIAG_INTERRUPT_IN();
if(*g_memcpyDmaInfo.isReg & g_memcpyDmaInfo.tcMask) { // DMA transfer complete
*g_memcpyDmaInfo.ifcReg = g_memcpyDmaInfo.tcMask;
LL_DMA_DisableStream(g_memcpyDmaInfo.dma, g_memcpyDmaInfo.stream);
g_memcpyDmaBusy = 0;
}
DIAG_INTERRUPT_OUT();
}