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Added some address setting functions to dma.

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This commit is contained in:
Thomas Otto 2010-03-24 22:51:43 +01:00
parent a0e026d110
commit d96b318795
2 changed files with 81 additions and 0 deletions
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11
include/libopenstm32/dma.h
View File

@ -687,6 +687,14 @@
/* MA[31:0]: Memory address */
/* --- Generic values ------------------------------------------------------ */
#define DMA_CHANNEL1 1
#define DMA_CHANNEL2 2
#define DMA_CHANNEL3 3
#define DMA_CHANNEL4 4
#define DMA_CHANNEL5 5
#define DMA_CHANNEL6 6
#define DMA_CHANNEL7 7
/* --- function prototypes ------------------------------------------------- */
@ -707,5 +715,8 @@ void dma_enable_transfer_complete_interrupt(u32 dma, u8 channel);
void dma_disable_transfer_complete_interrupt(u32 dma, u8 channel);
void dma_enable_channel(u32 dma, u8 channel);
void dma_disable_channel(u32 dma, u8 channel);
void dma_set_peripheral_address(u32 dma, u8 channel, u32 * address);
void dma_set_memory_address(u32 dma, u8 channel, u32 * address);
void dma_set_number_of_data(u32 dma, u8 channel, u16 number);
#endif

70
lib/dma.c
View File

@ -473,3 +473,73 @@ void dma_disable_channel(u32 dma, u8 channel)
}
}
void dma_set_peripheral_address(u32 dma, u8 channel, u32 * address)
{
switch (channel)
{
case 1:
DMA_CPAR1(dma) = (u32)address;
case 2:
DMA_CPAR2(dma) = (u32)address;
case 3:
DMA_CPAR3(dma) = (u32)address;
case 4:
DMA_CPAR4(dma) = (u32)address;
case 5:
DMA_CPAR5(dma) = (u32)address;
case 6:
if (dma == DMA1)
DMA_CPAR6(dma) = (u32)address;
case 7:
if (dma == DMA1)
DMA_CPAR7(dma) = (u32)address;
}
}
void dma_set_memory_address(u32 dma, u8 channel, u32 * address)
{
switch (channel)
{
case 1:
DMA_CMAR1(dma) = (u32)address;
case 2:
DMA_CMAR2(dma) = (u32)address;
case 3:
DMA_CMAR3(dma) = (u32)address;
case 4:
DMA_CMAR4(dma) = (u32)address;
case 5:
DMA_CMAR5(dma) = (u32)address;
case 6:
if (dma == DMA1)
DMA_CMAR6(dma) = (u32)address;
case 7:
if (dma == DMA1)
DMA_CMAR7(dma) = (u32)address;
}
}
void dma_set_number_of_data(u32 dma, u8 channel, u16 number)
{
switch (channel)
{
case 1:
DMA_CNDTR1(dma) = number;
case 2:
DMA_CNDTR2(dma) = number;
case 3:
DMA_CNDTR3(dma) = number;
case 4:
DMA_CNDTR4(dma) = number;
case 5:
DMA_CNDTR5(dma) = number;
case 6:
if (dma == DMA1)
DMA_CNDTR6(dma) = number;
case 7:
if (dma == DMA1)
DMA_CNDTR7(dma) = number;
}
}