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| author | Ben Dooks <ben-linux@fluff.org> | 2010-02-21 02:01:33 +0300 |
|---|---|---|
| committer | Ben Dooks <ben-linux@fluff.org> | 2010-02-22 02:10:35 +0300 |
| commit | 992426bfe98e71db1ce767fd66f6c68ed18fcc14 (patch) | |
| tree | 6abd29441da0a9764dabedbbff7eb27d30fda406 /arch/arm/mach-s3c64xx | |
| parent | 431fb7df24ebf360ba35895a60d084de364e39f8 (diff) | |
| download | linux-992426bfe98e71db1ce767fd66f6c68ed18fcc14.tar.xz | |
ARM: SAMSUNG: Remove dma-plat.h to allow plat-s3c64xx to be removed
dma-plat.h is the last file left in plat-s3c64xx, but to remove it we
must also change the use of dma-plat.h by the core code and the s3c24xx
implementation.
Rename the s3c24xx dma-plat.h in the common plat-samsung directory as it
may be used for other ports. Move the specific dma bits into the
mach-s3c64xx directory and update the build as needed.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Diffstat (limited to 'arch/arm/mach-s3c64xx')
| -rw-r--r-- | arch/arm/mach-s3c64xx/dma.c | 1 | ||||
| -rw-r--r-- | arch/arm/mach-s3c64xx/include/mach/dma.h | 57 |
2 files changed, 57 insertions, 1 deletions
diff --git a/arch/arm/mach-s3c64xx/dma.c b/arch/arm/mach-s3c64xx/dma.c index 0e0edf75e8ed..b62bdf18dca4 100644 --- a/arch/arm/mach-s3c64xx/dma.c +++ b/arch/arm/mach-s3c64xx/dma.c @@ -27,7 +27,6 @@ #include <mach/map.h> #include <mach/irqs.h> -#include <plat/dma-plat.h> #include <mach/regs-sys.h> #include <asm/hardware/pl080.h> diff --git a/arch/arm/mach-s3c64xx/include/mach/dma.h b/arch/arm/mach-s3c64xx/include/mach/dma.h index 6723860748be..0a5d9268a23e 100644 --- a/arch/arm/mach-s3c64xx/include/mach/dma.h +++ b/arch/arm/mach-s3c64xx/include/mach/dma.h @@ -67,4 +67,61 @@ static __inline__ bool s3c_dma_has_circular(void) #include <plat/dma.h> +#define DMACH_LOW_LEVEL (1<<28) /* use this to specifiy hardware ch no */ + +struct s3c64xx_dma_buff; + +/** s3c64xx_dma_buff - S3C64XX DMA buffer descriptor + * @next: Pointer to next buffer in queue or ring. + * @pw: Client provided identifier + * @lli: Pointer to hardware descriptor this buffer is associated with. + * @lli_dma: Hardare address of the descriptor. + */ +struct s3c64xx_dma_buff { + struct s3c64xx_dma_buff *next; + + void *pw; + struct pl080s_lli *lli; + dma_addr_t lli_dma; +}; + +struct s3c64xx_dmac; + +struct s3c2410_dma_chan { + unsigned char number; /* number of this dma channel */ + unsigned char in_use; /* channel allocated */ + unsigned char bit; /* bit for enable/disable/etc */ + unsigned char hw_width; + unsigned char peripheral; + + unsigned int flags; + enum s3c2410_dmasrc source; + + + dma_addr_t dev_addr; + + struct s3c2410_dma_client *client; + struct s3c64xx_dmac *dmac; /* pointer to controller */ + + void __iomem *regs; + + /* cdriver callbacks */ + s3c2410_dma_cbfn_t callback_fn; /* buffer done callback */ + s3c2410_dma_opfn_t op_fn; /* channel op callback */ + + /* buffer list and information */ + struct s3c64xx_dma_buff *curr; /* current dma buffer */ + struct s3c64xx_dma_buff *next; /* next buffer to load */ + struct s3c64xx_dma_buff *end; /* end of queue */ + + /* note, when channel is running in circular mode, curr is the + * first buffer enqueued, end is the last and curr is where the + * last buffer-done event is set-at. The buffers are not freed + * and the last buffer hardware descriptor points back to the + * first. + */ +}; + +#include <plat/dma-core.h> + #endif /* __ASM_ARCH_IRQ_H */ |