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: Arvid Brodin <arvid.brodin@enea.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/usb/host/isp1760-hcd.h b/drivers/usb/host/isp1760-hcd.h
index 612bce5..c01c591 100644
--- a/drivers/usb/host/isp1760-hcd.h
+++ b/drivers/usb/host/isp1760-hcd.h
@@ -84,30 +84,27 @@
#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;