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usb/isp1760: Move to native-endian ptds

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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: Arvid Brodin <arvid.brodin@enea.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Arvid Brodin 2011-02-26 22:02:57 +01:00 committed by Greg Kroah-Hartman
parent 6d42fcdb68
commit bedc0c31ac
2 changed files with 338 additions and 356 deletions
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661
drivers/usb/host/isp1760-hcd.c
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File diff suppressed because it is too large Load Diff

33
drivers/usb/host/isp1760-hcd.h
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@ -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;