MFC: USB Quirk for iPods (should work with some other devices).

usb_quirks.c:	1.43
	usb_quirks.h:	1.19
	usb_subr.c:	1.78
	usbdevs:	1.236

While this might not be the best solution, this has been considered good enough
to be MFC'ed.

Approved by:	ssouhlal
Discussed on:	src-committers@

sys/dev/usb/usb_quirks.c

@@ -79,6 +79,8 @@ Static const struct usbd_quirk_entry {
  { USB_VENDOR_TELEX, USB_PRODUCT_TELEX_MIC1,	    0x009, { UQ_AU_NO_FRAC }},
  { USB_VENDOR_SILICONPORTALS, USB_PRODUCT_SILICONPORTALS_YAPPHONE,
    						    0x100, { UQ_AU_INP_ASYNC }},
+ { USB_VENDOR_APPLE, USB_PRODUCT_APPLE_IPOD3G,	    ANY,   { UQ_NO_OPEN_CLEARSTALL }},
+ { USB_VENDOR_APPLE, USB_PRODUCT_APPLE_IPODVIDEO,   ANY,   { UQ_NO_OPEN_CLEARSTALL }},
  /* XXX These should have a revision number, but I don't know what they are. */
  { USB_VENDOR_HP, USB_PRODUCT_HP_895C,		    ANY,   { UQ_BROKEN_BIDIR }},
  { USB_VENDOR_HP, USB_PRODUCT_HP_880C,		    ANY,   { UQ_BROKEN_BIDIR }},

sys/dev/usb/usb_quirks.h

@@ -54,6 +54,9 @@ struct usbd_quirks {
 #define UQ_AU_INP_ASYNC	0x0800	/* input is async despite claim of adaptive */
 #define UQ_ASSUME_CM_OVER_DATA 0x1000 /* modem device breaks on cm over data */
 #define UQ_BROKEN_BIDIR	0x2000	/* printer has broken bidir mode */
+#define UQ_NO_OPEN_CLEARSTALL	0x4000	/* don't usbd_clear_endpoint_stall() */
+					/* in usbd_setup_pipe() */
+					
 };
 
 extern const struct usbd_quirks usbd_no_quirk;

sys/dev/usb/usb_subr.c

@@ -778,20 +778,24 @@ usbd_setup_pipe(usbd_device_handle dev, usbd_interface_handle iface,
 		free(p, M_USB);
 		return (err);
 	}
-	/* Clear any stall and make sure DATA0 toggle will be used next. */
-	if (UE_GET_ADDR(ep->edesc->bEndpointAddress) != USB_CONTROL_ENDPOINT) {
-		err = usbd_clear_endpoint_stall(p);
-		/*
-		 * Some devices reject this command, so ignore a STALL.
-		 * Some device just time out on this command, so ignore
-		 * that too.
-		 */
-		if (err && err != USBD_STALLED && err != USBD_TIMEOUT) {
-			printf("usbd_setup_pipe: failed to start "
-			    "endpoint, %s\n", usbd_errstr(err));
-			return (err);
+
+	if (!(dev->quirks->uq_flags & UQ_NO_OPEN_CLEARSTALL)) {
+		/* Clear any stall and make sure DATA0 toggle will be used next. */
+		if (UE_GET_ADDR(ep->edesc->bEndpointAddress) != USB_CONTROL_ENDPOINT) {
+			err = usbd_clear_endpoint_stall(p);
+			/*
+			 * Some devices reject this command, so ignore a STALL.
+			 * Some device just time out on this command, so ignore
+			 * that too.
+			 */
+			if (err && err != USBD_STALLED && err != USBD_TIMEOUT) {
+				printf("usbd_setup_pipe: failed to start "
+				    "endpoint, %s\n", usbd_errstr(err));
+				return (err);
+			}
 		}
 	}
+
 	*pipe = p;
 	return (USBD_NORMAL_COMPLETION);
 }

sys/dev/usb/usbdevs

@@ -642,6 +642,8 @@ product AOX USB101		0x0008	Ethernet
 /* Apple Computer products */
 product APPLE OPTMOUSE		0x0302	Optical mouse
 product APPLE SPEAKERS		0x1101	Speakers
+product APPLE IPOD3G		0x1203	iPod 3G
+product APPLE IPODVIDEO		0x1209	iPod Video
 
 /* Asahi Optical products */
 product ASAHIOPTICAL OPTIO230	0x0004	Digital camera