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Diffstat (limited to 'arch/arm/include/asm/dma.h')
-rw-r--r--arch/arm/include/asm/dma.h32
1 files changed, 15 insertions, 17 deletions
diff --git a/arch/arm/include/asm/dma.h b/arch/arm/include/asm/dma.h
index df5638f3643..c5557a650d1 100644
--- a/arch/arm/include/asm/dma.h
+++ b/arch/arm/include/asm/dma.h
@@ -19,8 +19,6 @@
#include <asm/system.h>
#include <asm/scatterlist.h>
-typedef unsigned int dmach_t;
-
#include <mach/isa-dma.h>
/*
@@ -52,44 +50,44 @@ static inline void release_dma_lock(unsigned long flags)
/* Clear the 'DMA Pointer Flip Flop'.
* Write 0 for LSB/MSB, 1 for MSB/LSB access.
*/
-#define clear_dma_ff(channel)
+#define clear_dma_ff(chan)
/* Set only the page register bits of the transfer address.
*
* NOTE: This is an architecture specific function, and should
* be hidden from the drivers
*/
-extern void set_dma_page(dmach_t channel, char pagenr);
+extern void set_dma_page(unsigned int chan, char pagenr);
/* Request a DMA channel
*
* Some architectures may need to do allocate an interrupt
*/
-extern int request_dma(dmach_t channel, const char * device_id);
+extern int request_dma(unsigned int chan, const char * device_id);
/* Free a DMA channel
*
* Some architectures may need to do free an interrupt
*/
-extern void free_dma(dmach_t channel);
+extern void free_dma(unsigned int chan);
/* Enable DMA for this channel
*
* On some architectures, this may have other side effects like
* enabling an interrupt and setting the DMA registers.
*/
-extern void enable_dma(dmach_t channel);
+extern void enable_dma(unsigned int chan);
/* Disable DMA for this channel
*
* On some architectures, this may have other side effects like
* disabling an interrupt or whatever.
*/
-extern void disable_dma(dmach_t channel);
+extern void disable_dma(unsigned int chan);
/* Test whether the specified channel has an active DMA transfer
*/
-extern int dma_channel_active(dmach_t channel);
+extern int dma_channel_active(unsigned int chan);
/* Set the DMA scatter gather list for this channel
*
@@ -97,7 +95,7 @@ extern int dma_channel_active(dmach_t channel);
* especially since some DMA architectures don't update the
* DMA address immediately, but defer it to the enable_dma().
*/
-extern void set_dma_sg(dmach_t channel, struct scatterlist *sg, int nr_sg);
+extern void set_dma_sg(unsigned int chan, struct scatterlist *sg, int nr_sg);
/* Set the DMA address for this channel
*
@@ -105,9 +103,9 @@ extern void set_dma_sg(dmach_t channel, struct scatterlist *sg, int nr_sg);
* especially since some DMA architectures don't update the
* DMA address immediately, but defer it to the enable_dma().
*/
-extern void __set_dma_addr(dmach_t channel, void *addr);
-#define set_dma_addr(channel, addr) \
- __set_dma_addr(channel, bus_to_virt(addr))
+extern void __set_dma_addr(unsigned int chan, void *addr);
+#define set_dma_addr(chan, addr) \
+ __set_dma_addr(chan, bus_to_virt(addr))
/* Set the DMA byte count for this channel
*
@@ -115,7 +113,7 @@ extern void __set_dma_addr(dmach_t channel, void *addr);
* especially since some DMA architectures don't update the
* DMA count immediately, but defer it to the enable_dma().
*/
-extern void set_dma_count(dmach_t channel, unsigned long count);
+extern void set_dma_count(unsigned int chan, unsigned long count);
/* Set the transfer direction for this channel
*
@@ -124,11 +122,11 @@ extern void set_dma_count(dmach_t channel, unsigned long count);
* DMA transfer direction immediately, but defer it to the
* enable_dma().
*/
-extern void set_dma_mode(dmach_t channel, dmamode_t mode);
+extern void set_dma_mode(unsigned int chan, dmamode_t mode);
/* Set the transfer speed for this channel
*/
-extern void set_dma_speed(dmach_t channel, int cycle_ns);
+extern void set_dma_speed(unsigned int chan, int cycle_ns);
/* Get DMA residue count. After a DMA transfer, this
* should return zero. Reading this while a DMA transfer is
@@ -136,7 +134,7 @@ extern void set_dma_speed(dmach_t channel, int cycle_ns);
* If called before the channel has been used, it may return 1.
* Otherwise, it returns the number of _bytes_ left to transfer.
*/
-extern int get_dma_residue(dmach_t channel);
+extern int get_dma_residue(unsigned int chan);
#ifndef NO_DMA
#define NO_DMA 255