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Commit 452f0394 authored by Anand Gadiyar's avatar Anand Gadiyar Committed by Greg Kroah-Hartman
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usb: musb: hsdma: add wrapper for reading DMA count 



Add a wrapper for reading the DMA count register, analogous
to the one for writing to this register.

Signed-off-by: default avatarAnand Gadiyar <gadiyar@ti.com>
Cc: Vikram Pandita <vikram.pandita@ti.com>
Signed-off-by: default avatarFelipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 3b151526

drivers/usb/musb/musbhsdma.h

+17 −0
Original line number Original line Diff line number Diff line
@@ -55,6 +55,10 @@ 
		    MUSB_HSDMA_CHANNEL_OFFSET(bchannel, MUSB_HSDMA_ADDRESS), \

		    MUSB_HSDMA_CHANNEL_OFFSET(bchannel, MUSB_HSDMA_ADDRESS), \

		    addr)

		    addr)





#define musb_read_hsdma_count(mbase, bchannel)	\

	musb_readl(mbase,	\

		   MUSB_HSDMA_CHANNEL_OFFSET(bchannel, MUSB_HSDMA_COUNT))



#define musb_write_hsdma_count(mbase, bchannel, len) \

#define musb_write_hsdma_count(mbase, bchannel, len) \

	musb_writel(mbase, \

	musb_writel(mbase, \

		    MUSB_HSDMA_CHANNEL_OFFSET(bchannel, MUSB_HSDMA_COUNT), \

		    MUSB_HSDMA_CHANNEL_OFFSET(bchannel, MUSB_HSDMA_COUNT), \
@@ -96,6 +100,19 @@ static inline void musb_write_hsdma_addr(void __iomem *mbase, 
		((u16)(((u32) dma_addr >> 16) & 0xFFFF)));

		((u16)(((u32) dma_addr >> 16) & 0xFFFF)));

}

}





static inline u32 musb_read_hsdma_count(void __iomem *mbase, u8 bchannel)

{

	u32 count = musb_readw(mbase,

		MUSB_HSDMA_CHANNEL_OFFSET(bchannel, MUSB_HSDMA_COUNT_HIGH));



	count = count << 16;



	count |= musb_readw(mbase,

		MUSB_HSDMA_CHANNEL_OFFSET(bchannel, MUSB_HSDMA_COUNT_LOW));



	return count;

}



static inline void musb_write_hsdma_count(void __iomem *mbase,

static inline void musb_write_hsdma_count(void __iomem *mbase,

				u8 bchannel, u32 len)

				u8 bchannel, u32 len)

{

{