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Commit bedc0c31 authored by Arvid Brodin's avatar Arvid Brodin Committed by Greg Kroah-Hartman
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usb/isp1760: Move to native-endian ptds 



This helps users with platform-bus-connected isp176xs, big-endian cpu,
and missing byteswapping on the data bus. It does so by collecting all
SW byteswaps in one place and also fixes a bug with non-32-bit io
transfers on this hardware, where payload has to be byteswapped
instead of ptds.

Signed-off-by: default avatarArvid Brodin <arvid.brodin@enea.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 6d42fcdb

drivers/usb/host/isp1760-hcd.c

+324 −339

File changed.

Preview size limit exceeded, changes collapsed.

drivers/usb/host/isp1760-hcd.h

+15 −18
Original line number Diff line number Diff line
@@ -84,30 +84,27 @@ void deinit_kmem_cache(void); 
#define HC_INT_IRQ_MASK_AND_REG	0x328

#define HC_ATL_IRQ_MASK_AND_REG	0x32C



/* Register sets */

#define HC_BEGIN_OF_ATL		0x0c00

#define HC_BEGIN_OF_INT		0x0800

#define HC_BEGIN_OF_ISO		0x0400

#define HC_BEGIN_OF_PAYLOAD	0x1000



/* urb state*/

#define DELETE_URB		(0x0008)

#define NO_TRANSFER_ACTIVE	(0xffffffff)



#define ATL_REGS_OFFSET		(0xc00)

#define INT_REGS_OFFSET		(0x800)



/* Philips Transfer Descriptor (PTD) */

/* Philips Proprietary Transfer Descriptor (PTD) */

typedef __u32 __bitwise __dw;

struct ptd {

	__le32 dw0;

	__le32 dw1;

	__le32 dw2;

	__le32 dw3;

	__le32 dw4;

	__le32 dw5;

	__le32 dw6;

	__le32 dw7;

	__dw dw0;

	__dw dw1;

	__dw dw2;

	__dw dw3;

	__dw dw4;

	__dw dw5;

	__dw dw6;

	__dw dw7;

};

#define PTD_OFFSET		0x0400

#define ISO_PTD_OFFSET		0x0400

#define INT_PTD_OFFSET		0x0800

#define ATL_PTD_OFFSET		0x0c00

#define PAYLOAD_OFFSET		0x1000



struct inter_packet_info {

	void *data_buffer;