usb: Add super speed support

This adds the missing bits and pieces to add super speed support to the
USB stack. It is based on the corresponding U-Boot code.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

3 files changed, 39 insertions, 0 deletions

diff --git a/include/usb/ch9.h b/include/usb/ch9.h
index 85f3e64cac..2e06dd89fd 100644
--- a/include/usb/ch9.h
+++ b/include/usb/ch9.h
@@ -400,6 +400,12 @@ struct usb_endpoint_descriptor {
 #define USB_ENDPOINT_XFER_INT		3
 #define USB_ENDPOINT_MAX_ADJUSTABLE	0x80
 
+#define USB_ENDPOINT_MAXP_MASK          0x07ff
+#define USB_EP_MAXP_MULT_SHIFT          11
+#define USB_EP_MAXP_MULT_MASK           (3 << USB_EP_MAXP_MULT_SHIFT)
+#define USB_EP_MAXP_MULT(m)             \
+	(((m) & USB_EP_MAXP_MULT_MASK) >> USB_EP_MAXP_MULT_SHIFT)
+
 /* The USB 3.0 spec redefines bits 5:4 of bmAttributes as interrupt ep type. */
 #define USB_ENDPOINT_INTRTYPE		0x30
 #define USB_ENDPOINT_INTR_PERIODIC	(0 << 4)
@@ -607,6 +613,20 @@ static inline int usb_endpoint_maxp(const struct usb_endpoint_descriptor *epd)
 	return __le16_to_cpu(epd->wMaxPacketSize);
 }
 
+/**
+ * usb_endpoint_maxp_mult - get endpoint's transactional opportunities
+ * @epd: endpoint to be checked
+ *
+ * Return @epd's wMaxPacketSize[12:11] + 1
+ */
+static inline int
+usb_endpoint_maxp_mult(const struct usb_endpoint_descriptor *epd)
+{
+	int maxp = __le16_to_cpu(epd->wMaxPacketSize);
+
+	return USB_EP_MAXP_MULT(maxp) + 1;
+}
+
 static inline int usb_endpoint_interrupt_type(
 		const struct usb_endpoint_descriptor *epd)
 {
diff --git a/include/usb/usb.h b/include/usb/usb.h
index 5de9e25863..393118db7b 100644
--- a/include/usb/usb.h
+++ b/include/usb/usb.h
@@ -66,6 +66,12 @@ struct usb_interface {
 	unsigned char	act_altsetting;
 
 	struct usb_endpoint_descriptor ep_desc[USB_MAXENDPOINTS];
+	/*
+	 * Super Speed Device will have Super Speed Endpoint
+	 * Companion Descriptor  (section 9.6.7 of usb 3.0 spec)
+	 * Revision 1.0 June 6th 2011
+	 */
+	struct usb_ss_ep_comp_descriptor ss_ep_comp_desc[USB_MAXENDPOINTS];
 };
 
 struct usb_configuration {
@@ -119,6 +125,9 @@ struct usb_device {
 	struct list_head list;
 	void *drv_data;
 	struct usb_hub_device *hub;
+
+	/* slot_id - for xHCI enabled devices */
+	unsigned int slot_id;
 };
 
 struct usb_device_id;
@@ -147,6 +156,10 @@ struct usb_host {
 	int (*submit_int_msg)(struct usb_device *dev, unsigned long pipe, void *buffer,
 			int transfer_len, int interval);
 	void (*usb_event_poll)(void);
+	int (*alloc_device)(struct usb_device *dev);
+	int (*update_hub_device)(struct usb_device *dev);
+
+	bool no_desc_before_addr;
 
 	struct list_head list;
 
@@ -307,6 +320,11 @@ void usb_rescan(void);
 #define usb_pipecontrol(pipe)	(usb_pipetype((pipe)) == PIPE_CONTROL)
 #define usb_pipebulk(pipe)	(usb_pipetype((pipe)) == PIPE_BULK)
 
+#define usb_pipe_ep_index(pipe) \
+		usb_pipecontrol(pipe) ? (usb_pipeendpoint(pipe) * 2) : \
+			((usb_pipeendpoint(pipe) * 2) - \
+			(usb_pipein(pipe) ? 0 : 1))
+
 /*
  * As of USB 2.0, full/low speed devices are segregated into trees.
  * One type grows from USB 1.1 host controllers (OHCI, UHCI etc).
diff --git a/include/usb/usb_defs.h b/include/usb/usb_defs.h
index dcc4c71ba1..cfde278a33 100644
--- a/include/usb/usb_defs.h
+++ b/include/usb/usb_defs.h
@@ -148,5 +148,6 @@
 #define SetPortFeature		(0x2300 | USB_REQ_SET_FEATURE)
 
 #define USB_PORT_STAT_SUPER_SPEED   0x0600       /* faking support to XHCI */
+#define USB_PORT_STAT_SPEED_MASK (USB_PORT_STAT_LOW_SPEED | USB_PORT_STAT_HIGH_SPEED)
 
 #endif /*_USB_DEFS_H_ */