[PATCH] USB: rndis (3/4) Big Endian support for gadget RNDIS

Add byteswapping.  Original version partially worked on PPC with Net2280,
this version applies to the latest RNDIS code but hasn't been retested on
big-endian.  Ping should be working in at least one one direction.

Also added a handful of other things from my BK:  track suspend/resume
(to eventually implement wake-on-lan), give a better rndis error
message, and add missing declarations for PM-related OIDs (usage is
#ifdeffed out by previous patch).

    From:	   Jon Neal <jon@ballardtech.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

drivers/usb/gadget/ether.c

@@ -118,6 +118,7 @@ struct eth_dev {
 	unsigned		zlp:1;
 	unsigned		cdc:1;
 	unsigned		rndis:1;
+	unsigned		suspended:1;
 	u16			cdc_filter;
 	unsigned long		todo;
 #define	WORK_RX_MEMORY		0
@@ -1355,11 +1356,13 @@ static void rndis_response_complete (struct usb_ep *ep, struct usb_request *req)
 static void rndis_command_complete (struct usb_ep *ep, struct usb_request *req)
 {
 	struct eth_dev          *dev = ep->driver_data;
+	int			status;
 	
 	/* received RNDIS command from CDC_SEND_ENCAPSULATED_COMMAND */
 	spin_lock(&dev->lock);
-	if (rndis_msg_parser (dev->rndis_config, (u8 *) req->buf))
-		ERROR(dev, "%s: rndis parse error\n", __FUNCTION__ );
+	status = rndis_msg_parser (dev->rndis_config, (u8 *) req->buf);
+	if (status < 0)
+		ERROR(dev, "%s: rndis parse error %d\n", __FUNCTION__, status);
 	spin_unlock(&dev->lock);
 }
 
@@ -2561,6 +2564,26 @@ eth_bind (struct usb_gadget *gadget)
 
 /*-------------------------------------------------------------------------*/
 
+static void
+eth_suspend (struct usb_gadget *gadget)
+{
+	struct eth_dev		*dev = get_gadget_data (gadget);
+
+	DEBUG (dev, "suspend\n");
+	dev->suspended = 1;
+}
+
+static void
+eth_resume (struct usb_gadget *gadget)
+{
+	struct eth_dev		*dev = get_gadget_data (gadget);
+
+	DEBUG (dev, "resume\n");
+	dev->suspended = 0;
+}
+
+/*-------------------------------------------------------------------------*/
+
 static struct usb_gadget_driver eth_driver = {
 #ifdef CONFIG_USB_GADGET_DUALSPEED
 	.speed		= USB_SPEED_HIGH,
@@ -2574,6 +2597,9 @@ static struct usb_gadget_driver eth_driver = {
 	.setup		= eth_setup,
 	.disconnect	= eth_disconnect,
 
+	.suspend	= eth_suspend,
+	.resume		= eth_resume,
+
 	.driver 	= {
 		.name		= (char *) shortname,
 		// .shutdown = ...

drivers/usb/gadget/ndis.h

@@ -26,11 +26,41 @@
 #define NDIS_STATUS_MULTICAST_EXISTS      0xC001000A
 #define NDIS_STATUS_MULTICAST_NOT_FOUND   0xC001000B
 
+enum NDIS_DEVICE_POWER_STATE {
+	NdisDeviceStateUnspecified = 0,
+	NdisDeviceStateD0,
+	NdisDeviceStateD1,
+	NdisDeviceStateD2,
+	NdisDeviceStateD3,
+	NdisDeviceStateMaximum
+};
+
+struct NDIS_PM_WAKE_UP_CAPABILITIES {
+	enum NDIS_DEVICE_POWER_STATE  MinMagicPacketWakeUp;
+	enum NDIS_DEVICE_POWER_STATE  MinPatternWakeUp;
+	enum NDIS_DEVICE_POWER_STATE  MinLinkChangeWakeUp;
+};
+
 /* NDIS_PNP_CAPABILITIES.Flags constants */
 #define NDIS_DEVICE_WAKE_UP_ENABLE                0x00000001
 #define NDIS_DEVICE_WAKE_ON_PATTERN_MATCH_ENABLE  0x00000002
 #define NDIS_DEVICE_WAKE_ON_MAGIC_PACKET_ENABLE   0x00000004
 
+struct NDIS_PNP_CAPABILITIES {
+	u32					Flags;
+	struct NDIS_PM_WAKE_UP_CAPABILITIES	WakeUpCapabilities;
+};
+
+struct NDIS_PM_PACKET_PATTERN {
+	u32	Priority;
+	u32	Reserved;
+	u32	MaskSize;
+	u32	PatternOffset;
+	u32	PatternSize;
+	u32	PatternFlags;
+};
+
+
 /* Required Object IDs (OIDs) */
 #define OID_GEN_SUPPORTED_LIST            0x00010101
 #define OID_GEN_HARDWARE_STATUS           0x00010102