Super Speed hub descriptor definition and routine, required for upcoming

external USB 3.0 hub support.

3 files changed, 34 insertions, 5 deletions

diff --git a/sys/dev/usb/usb.h b/sys/dev/usb/usb.h
index eb4bbe06a10..98c71b0284d 100644
--- a/sys/dev/usb/usb.h
+++ b/sys/dev/usb/usb.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: usb.h,v 1.46 2014/03/08 11:47:26 mpi Exp $ */
+/*	$OpenBSD: usb.h,v 1.47 2014/08/08 14:20:05 mpi Exp $ */
 /*	$NetBSD: usb.h,v 1.69 2002/09/22 23:20:50 augustss Exp $	*/
 /*	$FreeBSD: src/sys/dev/usb/usb.h,v 1.14 1999/11/17 22:33:46 n_hibma Exp $	*/
 
@@ -328,9 +328,21 @@ typedef struct {
 	uByte		DeviceRemovable[32]; /* max 255 ports */
 #define UHD_NOT_REMOV(desc, i) \
     (((desc)->DeviceRemovable[(i)/8] >> ((i) % 8)) & 1)
-	/* deprecated */ uByte		PortPowerCtrlMask[1];
 } __packed usb_hub_descriptor_t;
-#define USB_HUB_DESCRIPTOR_SIZE 9 /* includes deprecated PortPowerCtrlMask */
+#define USB_HUB_DESCRIPTOR_SIZE 8
+
+typedef struct {
+	uByte		bDescLength;
+	uByte		bDescriptorType;
+	uByte		bNbrPorts;
+	uWord		wHubCharacteristics;
+	uByte		bPwrOn2PwrGood;	/* delay in 2 ms units */
+	uByte		bHubContrCurrent;
+	uByte		bHubHdrDecLat;
+	uWord		wHubDelay;
+	uByte		DeviceRemovable[32]; /* max 255 ports */
+} __packed usb_hub_ss_descriptor_t;
+#define USB_HUB_SS_DESCRIPTOR_SIZE 11
 
 typedef struct {
 	uByte		bLength;
diff --git a/sys/dev/usb/usbdi_util.c b/sys/dev/usb/usbdi_util.c
index 50629ab82c3..ba5d8e5bad2 100644
--- a/sys/dev/usb/usbdi_util.c
+++ b/sys/dev/usb/usbdi_util.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: usbdi_util.c,v 1.37 2014/07/09 15:47:54 mpi Exp $ */
+/*	$OpenBSD: usbdi_util.c,v 1.38 2014/08/08 14:20:05 mpi Exp $ */
 /*	$NetBSD: usbdi_util.c,v 1.40 2002/07/11 21:14:36 augustss Exp $	*/
 /*	$FreeBSD: src/sys/dev/usb/usbdi_util.c,v 1.14 1999/11/17 22:33:50 n_hibma Exp $	*/
 
@@ -114,6 +114,21 @@ usbd_get_hub_descriptor(struct usbd_device *dev, usb_hub_descriptor_t *hd,
 }
 
 usbd_status
+usbd_get_hub_ss_descriptor(struct usbd_device *dev, usb_hub_ss_descriptor_t *hd,
+    uint8_t nports)
+{
+	usb_device_request_t req;
+	uint16_t len = USB_HUB_SS_DESCRIPTOR_SIZE + (nports + 1) / 8;
+
+	req.bmRequestType = UT_READ_CLASS_DEVICE;
+	req.bRequest = UR_GET_DESCRIPTOR;
+	USETW2(req.wValue, UDESC_SS_HUB, 0);
+	USETW(req.wIndex, 0);
+	USETW(req.wLength, len);
+	return (usbd_do_request(dev, &req, hd));
+}
+
+usbd_status
 usbd_get_port_status(struct usbd_device *dev, int port, usb_port_status_t *ps)
 {
 	usb_device_request_t req;
diff --git a/sys/dev/usb/usbdi_util.h b/sys/dev/usb/usbdi_util.h
index b79622a6a90..85d8d884045 100644
--- a/sys/dev/usb/usbdi_util.h
+++ b/sys/dev/usb/usbdi_util.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: usbdi_util.h,v 1.26 2014/07/09 15:47:54 mpi Exp $ */
+/*	$OpenBSD: usbdi_util.h,v 1.27 2014/08/08 14:20:05 mpi Exp $ */
 /*	$NetBSD: usbdi_util.h,v 1.28 2002/07/11 21:14:36 augustss Exp $	*/
 /*	$FreeBSD: src/sys/dev/usb/usbdi_util.h,v 1.9 1999/11/17 22:33:50 n_hibma Exp $	*/
 
@@ -44,6 +44,8 @@ usbd_status	usbd_get_device_status(struct usbd_device *, usb_status_t *);
 usbd_status	usbd_get_hub_status(struct usbd_device *, usb_hub_status_t *);
 usbd_status	usbd_get_hub_descriptor(struct usbd_device *,
 		    usb_hub_descriptor_t *, uint8_t);
+usbd_status	usbd_get_hub_ss_descriptor(struct usbd_device *,
+		    usb_hub_ss_descriptor_t *, uint8_t);
 struct usb_hid_descriptor *usbd_get_hid_descriptor(struct usbd_device *,
 		   usb_interface_descriptor_t *);
 usbd_status	usbd_get_report(struct usbd_device *, int, int, int, void *,