diff options
Diffstat (limited to 'drivers/usb/host/xhci.h')
| -rw-r--r-- | drivers/usb/host/xhci.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index eee47c8a6ee8..af15b903e061 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -611,11 +611,13 @@ struct xhci_ep_ctx { #define EP_STATE_ERROR 4 /* Mult - Max number of burtst within an interval, in EP companion desc. */ #define EP_MULT(p) (((p) & 0x3) << 8) +#define CTX_TO_EP_MULT(p) (((p) >> 8) & 0x3) /* bits 10:14 are Max Primary Streams */ /* bit 15 is Linear Stream Array */ /* Interval - period between requests to an endpoint - 125u increments. */ #define EP_INTERVAL(p) (((p) & 0xff) << 16) #define EP_INTERVAL_TO_UFRAMES(p) (1 << (((p) >> 16) & 0xff)) +#define CTX_TO_EP_INTERVAL(p) (((p) >> 16) & 0xff) #define EP_MAXPSTREAMS_MASK (0x1f << 10) #define EP_MAXPSTREAMS(p) (((p) << 10) & EP_MAXPSTREAMS_MASK) /* Endpoint is set up with a Linear Stream Array (vs. Secondary Stream Array) */ @@ -640,6 +642,7 @@ struct xhci_ep_ctx { /* bit 6 reserved */ /* bit 7 is Host Initiate Disable - for disabling stream selection */ #define MAX_BURST(p) (((p)&0xff) << 8) +#define CTX_TO_MAX_BURST(p) (((p) >> 8) & 0xff) #define MAX_PACKET(p) (((p)&0xffff) << 16) #define MAX_PACKET_MASK (0xffff << 16) #define MAX_PACKET_DECODED(p) (((p) >> 16) & 0xffff) @@ -652,6 +655,7 @@ struct xhci_ep_ctx { /* tx_info bitmasks */ #define AVG_TRB_LENGTH_FOR_EP(p) ((p) & 0xffff) #define MAX_ESIT_PAYLOAD_FOR_EP(p) (((p) & 0xffff) << 16) +#define CTX_TO_MAX_ESIT_PAYLOAD(p) (((p) >> 16) & 0xffff) /* deq bitmasks */ #define EP_CTX_CYCLE_MASK (1 << 0) @@ -670,6 +674,11 @@ struct xhci_input_control_ctx { __le32 rsvd2[6]; }; +#define EP_IS_ADDED(ctrl_ctx, i) \ + (le32_to_cpu(ctrl_ctx->add_flags) & (1 << (i + 1))) +#define EP_IS_DROPPED(ctrl_ctx, i) \ + (le32_to_cpu(ctrl_ctx->drop_flags) & (1 << (i + 1))) + /* Represents everything that is needed to issue a command on the command ring. * It's useful to pre-allocate these for commands that cannot fail due to * out-of-memory errors, like freeing streams. @@ -731,6 +740,22 @@ struct xhci_stream_info { #define SMALL_STREAM_ARRAY_SIZE 256 #define MEDIUM_STREAM_ARRAY_SIZE 1024 +/* Some Intel xHCI host controllers need software to keep track of the bus + * bandwidth. Keep track of endpoint info here. Each root port is allocated + * the full bus bandwidth. We must also treat TTs (including each port under a + * multi-TT hub) as a separate bandwidth domain. The direct memory interface + * (DMI) also limits the total bandwidth (across all domains) that can be used. + */ +struct xhci_bw_info { + unsigned int ep_interval; + /* mult and num_packets are zero-based */ + unsigned int mult; + unsigned int num_packets; + unsigned int max_packet_size; + unsigned int max_esit_payload; + unsigned int type; +}; + struct xhci_virt_ep { struct xhci_ring *ring; /* Related to endpoints that are configured to use stream IDs only */ @@ -772,6 +797,7 @@ struct xhci_virt_ep { * process the missed tds on the endpoint ring. */ bool skip; + struct xhci_bw_info bw_info; }; enum xhci_overhead_type { @@ -1485,6 +1511,11 @@ unsigned int xhci_get_endpoint_flag(struct usb_endpoint_descriptor *desc); unsigned int xhci_get_endpoint_flag_from_index(unsigned int ep_index); unsigned int xhci_last_valid_endpoint(u32 added_ctxs); void xhci_endpoint_zero(struct xhci_hcd *xhci, struct xhci_virt_device *virt_dev, struct usb_host_endpoint *ep); +void xhci_clear_endpoint_bw_info(struct xhci_bw_info *bw_info); +void xhci_update_bw_info(struct xhci_hcd *xhci, + struct xhci_container_ctx *in_ctx, + struct xhci_input_control_ctx *ctrl_ctx, + struct xhci_virt_device *virt_dev); void xhci_endpoint_copy(struct xhci_hcd *xhci, struct xhci_container_ctx *in_ctx, struct xhci_container_ctx *out_ctx, |