1 files changed, 74 insertions, 20 deletions

diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index 059c659d3f39..4ef6b9e88504 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -285,12 +285,21 @@ struct xhci_op_regs {
  * 4 - super speed
  * 5-15 reserved
  */
-#define DEV_SPEED_MASK          (0xf<<10)
+#define DEV_SPEED_MASK          (0xf << 10)
+#define XDEV_FS                 (0x1 << 10)
+#define XDEV_LS                 (0x2 << 10)
+#define XDEV_HS                 (0x3 << 10)
+#define XDEV_SS                 (0x4 << 10)
 #define DEV_UNDEFSPEED(p)       (((p) & DEV_SPEED_MASK) == (0x0<<10))
-#define DEV_FULLSPEED(p)        (((p) & DEV_SPEED_MASK) == (0x1<<10))
-#define DEV_LOWSPEED(p)         (((p) & DEV_SPEED_MASK) == (0x2<<10))
-#define DEV_HIGHSPEED(p)        (((p) & DEV_SPEED_MASK) == (0x3<<10))
-#define DEV_SUPERSPEED(p)       (((p) & DEV_SPEED_MASK) == (0x4<<10))
+#define DEV_FULLSPEED(p)        (((p) & DEV_SPEED_MASK) == XDEV_FS)
+#define DEV_LOWSPEED(p)         (((p) & DEV_SPEED_MASK) == XDEV_LS)
+#define DEV_HIGHSPEED(p)        (((p) & DEV_SPEED_MASK) == XDEV_HS)
+#define DEV_SUPERSPEED(p)       (((p) & DEV_SPEED_MASK) == XDEV_SS)
+/* Bits 20:23 in the Slot Context are the speed for the device */
+#define SLOT_SPEED_FS           (XDEV_FS << 10)
+#define SLOT_SPEED_LS           (XDEV_LS << 10)
+#define SLOT_SPEED_HS           (XDEV_HS << 10)
+#define SLOT_SPEED_SS           (XDEV_SS << 10)
 /* Port Indicator Control */
 #define PORT_LED_OFF    (0 << 14)
 #define PORT_LED_AMBER  (1 << 14)
@@ -471,14 +480,19 @@ struct xhci_slot_ctx {
 /* Set if the device is a hub - bit 26 */
 #define DEV_HUB         (0x1 << 26)
 /* Index of the last valid endpoint context in this device context - 27:31 */
-#define LAST_EP_MASK    (0x1f << 27)
-#define LAST_EP(p)      ((p) << 27)
+#define LAST_CTX_MASK   (0x1f << 27)
+#define LAST_CTX(p)     ((p) << 27)
+#define LAST_CTX_TO_EP_NUM(p)   (((p) >> 27) - 1)
+/* Plus one for the slot context flag */
+#define EPI_TO_FLAG(p)  (1 << ((p) + 1))
+#define SLOT_FLAG       (1 << 0)
+#define EP0_FLAG        (1 << 1)
 
 /* dev_info2 bitmasks */
 /* Max Exit Latency (ms) - worst case time to wake up all links in dev path */
 #define MAX_EXIT        (0xffff)
 /* Root hub port number that is needed to access the USB device */
-#define ROOT_HUB_PORT   (0xff << 16)
+#define ROOT_HUB_PORT(p)        (((p) & 0xff) << 16)
 
 /* tt_info bitmasks */
 /*
@@ -495,7 +509,7 @@ struct xhci_slot_ctx {
 
 /* dev_state bitmasks */
 /* USB device address - assigned by the HC */
-#define DEV_ADDR        (0xff)
+#define DEV_ADDR_MASK   (0xff)
 /* bits 8:26 reserved */
 /* Slot state */
 #define SLOT_STATE      (0x1f << 27)
@@ -507,12 +521,13 @@ struct xhci_slot_ctx {
  * @ep_info2:   information on endpoint type, max packet size, max burst size,
  *              error count, and whether the HC will force an event for all
  *              transactions.
- * @ep_ring:    64-bit ring address.  If the endpoint only defines one flow,
- *              this points to the endpoint transfer ring.  Otherwise, it points
- *              to a flow context array, which has a ring pointer for each flow.
- * @intr_target:
- *              64-bit address of the Interrupter Target that will receive
- *              events from this endpoint.
+ * @deq:        64-bit ring dequeue pointer address.  If the endpoint only
+ *              defines one stream, this points to the endpoint transfer ring.
+ *              Otherwise, it points to a stream context array, which has a
+ *              ring pointer for each flow.
+ * @tx_info:
+ *              Average TRB lengths for the endpoint ring and
+ *              max payload within an Endpoint Service Interval Time (ESIT).
  *
  * Endpoint Context - section 6.2.1.2.  This assumes the HC uses 32-byte context
  * structures.  If the HC uses 64-byte contexts, there is an additional 32 bytes
@@ -521,12 +536,10 @@ struct xhci_slot_ctx {
 struct xhci_ep_ctx {
         u32     ep_info;
         u32     ep_info2;
-        /* 64-bit endpoint ring address */
-        u32     ep_ring[2];
-        /* 64-bit address of the interrupter target */
-        u32     intr_target[2];
+        u32     deq[2];
+        u32     tx_info;
         /* offset 0x14 - 0x1f reserved for HC internal use */
-        u32     reserved[2];
+        u32     reserved[3];
 } __attribute__ ((packed));
 
 /* ep_info bitmasks */
@@ -589,6 +602,28 @@ struct xhci_device_control {
 #define ADD_EP(x)       (0x1 << x)
 
 
+struct xhci_virt_device {
+        /*
+         * Commands to the hardware are passed an "input context" that
+         * tells the hardware what to change in its data structures.
+         * The hardware will return changes in an "output context" that
+         * software must allocate for the hardware.  We need to keep
+         * track of input and output contexts separately because
+         * these commands might fail and we don't trust the hardware.
+         */
+        struct xhci_device_control      *out_ctx;
+        dma_addr_t                      out_ctx_dma;
+        /* Used for addressing devices and configuration changes */
+        struct xhci_device_control      *in_ctx;
+        dma_addr_t                      in_ctx_dma;
+        /* FIXME when stream support is added */
+        struct xhci_ring                *ep_rings[31];
+        dma_addr_t                      ep_dma[31];
+        /* Status of the last command issued for this device */
+        u32                             cmd_status;
+};
+
+
 /**
  * struct xhci_device_context_array
  * @dev_context_ptr     array of 64-bit DMA addresses for device contexts
@@ -711,6 +746,11 @@ struct xhci_event_cmd {
         u32 flags;
 } __attribute__ ((packed));
 
+/* flags bitmasks */
+/* bits 16:23 are the virtual function ID */
+/* bits 24:31 are the slot ID */
+#define TRB_TO_SLOT_ID(p)       (((p) & (0xff<<24)) >> 24)
+#define SLOT_ID_FOR_TRB(p)      (((p) & 0xff) << 24)
 
 /* Port Status Change Event TRB fields */
 /* Port ID - bits 31:24 */
@@ -931,6 +971,11 @@ struct xhci_hcd {
         struct xhci_ring        *cmd_ring;
         struct xhci_ring        *event_ring;
         struct xhci_erst        erst;
+        /* slot enabling and address device helpers */
+        struct completion       addr_dev;
+        int slot_id;
+        /* Internal mirror of the HW's dcbaa */
+        struct xhci_virt_device *devs[MAX_HC_SLOTS];
 
         /* DMA pools */
         struct dma_pool *device_pool;
@@ -1002,10 +1047,14 @@ void xhci_debug_ring(struct xhci_hcd *xhci, struct xhci_ring *ring);
 void xhci_dbg_erst(struct xhci_hcd *xhci, struct xhci_erst *erst);
 void xhci_dbg_cmd_ptrs(struct xhci_hcd *xhci);
 void xhci_dbg_ring_ptrs(struct xhci_hcd *xhci, struct xhci_ring *ring);
+void xhci_dbg_ctx(struct xhci_hcd *xhci, struct xhci_device_control *ctx, dma_addr_t dma, unsigned int last_ep);
 
 /* xHCI memory managment */
 void xhci_mem_cleanup(struct xhci_hcd *xhci);
 int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags);
+void xhci_free_virt_device(struct xhci_hcd *xhci, int slot_id);
+int xhci_alloc_virt_device(struct xhci_hcd *xhci, int slot_id, struct usb_device *udev, gfp_t flags);
+int xhci_setup_addressable_virt_dev(struct xhci_hcd *xhci, struct usb_device *udev);
 
 #ifdef CONFIG_PCI
 /* xHCI PCI glue */
@@ -1022,6 +1071,9 @@ void xhci_stop(struct usb_hcd *hcd);
 void xhci_shutdown(struct usb_hcd *hcd);
 int xhci_get_frame(struct usb_hcd *hcd);
 irqreturn_t xhci_irq(struct usb_hcd *hcd);
+int xhci_alloc_dev(struct usb_hcd *hcd, struct usb_device *udev);
+void xhci_free_dev(struct usb_hcd *hcd, struct usb_device *udev);
+int xhci_address_device(struct usb_hcd *hcd, struct usb_device *udev);
 
 /* xHCI ring, segment, TRB, and TD functions */
 dma_addr_t trb_virt_to_dma(struct xhci_segment *seg, union xhci_trb *trb);
@@ -1029,6 +1081,8 @@ void ring_cmd_db(struct xhci_hcd *xhci);
 void *setup_one_noop(struct xhci_hcd *xhci);
 void handle_event(struct xhci_hcd *xhci);
 void set_hc_event_deq(struct xhci_hcd *xhci);
+int queue_slot_control(struct xhci_hcd *xhci, u32 trb_type, u32 slot_id);
+int queue_address_device(struct xhci_hcd *xhci, dma_addr_t in_ctx_ptr, u32 slot_id);
 
 /* xHCI roothub code */
 int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, u16 wIndex,