diff options
Diffstat (limited to 'drivers/usb/host/xhci.h')
| -rw-r--r-- | drivers/usb/host/xhci.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index e293e0974f48..b0b8d0f8791a 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -1338,6 +1338,9 @@ union xhci_trb { /* TRB buffer pointers can't cross 64KB boundaries */ #define TRB_MAX_BUFF_SHIFT 16 #define TRB_MAX_BUFF_SIZE (1 << TRB_MAX_BUFF_SHIFT) +/* How much data is left before the 64KB boundary? */ +#define TRB_BUFF_LEN_UP_TO_BOUNDARY(addr) (TRB_MAX_BUFF_SIZE - \ + (addr & (TRB_MAX_BUFF_SIZE - 1))) struct xhci_segment { union xhci_trb *trbs; @@ -1605,6 +1608,7 @@ struct xhci_hcd { */ #define XHCI_STATE_DYING (1 << 0) #define XHCI_STATE_HALTED (1 << 1) +#define XHCI_STATE_REMOVING (1 << 2) /* Statistics */ int error_bitmask; unsigned int quirks; @@ -1641,6 +1645,7 @@ struct xhci_hcd { #define XHCI_PME_STUCK_QUIRK (1 << 20) #define XHCI_MTK_HOST (1 << 21) #define XHCI_SSIC_PORT_UNUSED (1 << 22) +#define XHCI_NO_64BIT_SUPPORT (1 << 23) unsigned int num_active_eps; unsigned int limit_active_eps; /* There are two roothubs to keep track of bus suspend info for */ @@ -1963,4 +1968,15 @@ struct xhci_input_control_ctx *xhci_get_input_control_ctx(struct xhci_container_ struct xhci_slot_ctx *xhci_get_slot_ctx(struct xhci_hcd *xhci, struct xhci_container_ctx *ctx); struct xhci_ep_ctx *xhci_get_ep_ctx(struct xhci_hcd *xhci, struct xhci_container_ctx *ctx, unsigned int ep_index); +struct xhci_ring *xhci_triad_to_transfer_ring(struct xhci_hcd *xhci, + unsigned int slot_id, unsigned int ep_index, + unsigned int stream_id); +static inline struct xhci_ring *xhci_urb_to_transfer_ring(struct xhci_hcd *xhci, + struct urb *urb) +{ + return xhci_triad_to_transfer_ring(xhci, urb->dev->slot_id, + xhci_get_endpoint_index(&urb->ep->desc), + urb->stream_id); +} + #endif /* __LINUX_XHCI_HCD_H */ |