xhci: Store information about roothubs and TTs.

[pandora-kernel.git] / drivers / usb / host / xhci.h

diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index cae8e23..eee47c8 100644 (file)
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -774,6 +774,26 @@ struct xhci_virt_ep {
        bool                    skip;
 };
 
+enum xhci_overhead_type {
+       LS_OVERHEAD_TYPE = 0,
+       FS_OVERHEAD_TYPE,
+       HS_OVERHEAD_TYPE,
+};
+
+struct xhci_interval_bw {
+       unsigned int            num_packets;
+       /* How many endpoints of each speed are present. */
+       unsigned int            overhead[3];
+};
+
+#define        XHCI_MAX_INTERVAL       16
+
+struct xhci_interval_bw_table {
+       unsigned int            interval0_esit_payload;
+       struct xhci_interval_bw interval_bw[XHCI_MAX_INTERVAL];
+};
+
+
 struct xhci_virt_device {
        struct usb_device               *udev;
        /*
@@ -798,7 +818,32 @@ struct xhci_virt_device {
        /* Status of the last command issued for this device */
        u32                             cmd_status;
        struct list_head                cmd_list;
-       u8                              port;
+       u8                              fake_port;
+       u8                              real_port;
+       struct xhci_interval_bw_table   *bw_table;
+       struct xhci_tt_bw_info          *tt_info;
+};
+
+/*
+ * For each roothub, keep track of the bandwidth information for each periodic
+ * interval.
+ *
+ * If a high speed hub is attached to the roothub, each TT associated with that
+ * hub is a separate bandwidth domain.  The interval information for the
+ * endpoints on the devices under that TT will appear in the TT structure.
+ */
+struct xhci_root_port_bw_info {
+       struct list_head                tts;
+       unsigned int                    num_active_tts;
+       struct xhci_interval_bw_table   bw_table;
+};
+
+struct xhci_tt_bw_info {
+       struct list_head                tt_list;
+       int                             slot_id;
+       int                             ttport;
+       struct xhci_interval_bw_table   bw_table;
+       int                             active_eps;
 };
 
 
@@ -1267,6 +1312,8 @@ struct xhci_hcd {
        int slot_id;
        /* Internal mirror of the HW's dcbaa */
        struct xhci_virt_device *devs[MAX_HC_SLOTS];
+       /* For keeping track of bandwidth domains per roothub. */
+       struct xhci_root_port_bw_info   *rh_bw;
 
        /* DMA pools */
        struct dma_pool *device_pool;
@@ -1507,6 +1554,10 @@ irqreturn_t xhci_irq(struct usb_hcd *hcd);
 irqreturn_t xhci_msi_irq(int 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_alloc_tt_info(struct xhci_hcd *xhci,
+               struct xhci_virt_device *virt_dev,
+               struct usb_device *hdev,
+               struct usb_tt *tt, gfp_t mem_flags);
 int xhci_alloc_streams(struct usb_hcd *hcd, struct usb_device *udev,
                struct usb_host_endpoint **eps, unsigned int num_eps,
                unsigned int num_streams, gfp_t mem_flags);