summaryrefslogtreecommitdiffstats
path: root/drivers/usb/host/xhci.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/usb/host/xhci.h')
-rw-r--r--drivers/usb/host/xhci.h30
1 files changed, 22 insertions, 8 deletions
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index 6c7e343..34a60d9 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -720,6 +720,14 @@ struct xhci_virt_ep {
struct timer_list stop_cmd_timer;
int stop_cmds_pending;
struct xhci_hcd *xhci;
+ /*
+ * Sometimes the xHC can not process isochronous endpoint ring quickly
+ * enough, and it will miss some isoc tds on the ring and generate
+ * a Missed Service Error Event.
+ * Set skip flag when receive a Missed Service Error Event and
+ * process the missed tds on the endpoint ring.
+ */
+ bool skip;
};
struct xhci_virt_device {
@@ -911,6 +919,9 @@ struct xhci_event_cmd {
/* Control transfer TRB specific fields */
#define TRB_DIR_IN (1<<16)
+/* Isochronous TRB specific fields */
+#define TRB_SIA (1<<31)
+
struct xhci_generic_trb {
u32 field[4];
};
@@ -1082,6 +1093,12 @@ struct xhci_scratchpad {
dma_addr_t *sp_dma_buffers;
};
+struct urb_priv {
+ int length;
+ int td_cnt;
+ struct xhci_td *td[0];
+};
+
/*
* Each segment table entry is 4*32bits long. 1K seems like an ok size:
* (1K bytes * 8bytes/bit) / (4*32 bits) = 64 segment entries in the table,
@@ -1130,7 +1147,7 @@ struct xhci_hcd {
int page_size;
/* Valid values are 12 to 20, inclusive */
int page_shift;
- /* only one MSI vector for now, but might need more later */
+ /* msi-x vectors */
int msix_count;
struct msix_entry *msix_entries;
/* data structures */
@@ -1327,11 +1344,6 @@ void xhci_setup_no_streams_ep_input_ctx(struct xhci_hcd *xhci,
struct xhci_ring *xhci_dma_to_transfer_ring(
struct xhci_virt_ep *ep,
u64 address);
-struct xhci_ring *xhci_urb_to_transfer_ring(struct xhci_hcd *xhci,
- struct urb *urb);
-struct xhci_ring *xhci_triad_to_transfer_ring(struct xhci_hcd *xhci,
- unsigned int slot_id, unsigned int ep_index,
- unsigned int stream_id);
struct xhci_ring *xhci_stream_id_to_ring(
struct xhci_virt_device *dev,
unsigned int ep_index,
@@ -1339,6 +1351,7 @@ struct xhci_ring *xhci_stream_id_to_ring(
struct xhci_command *xhci_alloc_command(struct xhci_hcd *xhci,
bool allocate_in_ctx, bool allocate_completion,
gfp_t mem_flags);
+void xhci_urb_free_priv(struct xhci_hcd *xhci, struct urb_priv *urb_priv);
void xhci_free_command(struct xhci_hcd *xhci,
struct xhci_command *command);
@@ -1358,6 +1371,7 @@ 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);
+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_streams(struct usb_hcd *hcd, struct usb_device *udev,
@@ -1386,8 +1400,6 @@ struct xhci_segment *trb_in_td(struct xhci_segment *start_seg,
int xhci_is_vendor_info_code(struct xhci_hcd *xhci, unsigned int trb_comp_code);
void xhci_ring_cmd_db(struct xhci_hcd *xhci);
void *xhci_setup_one_noop(struct xhci_hcd *xhci);
-void xhci_handle_event(struct xhci_hcd *xhci);
-void xhci_set_hc_event_deq(struct xhci_hcd *xhci);
int xhci_queue_slot_control(struct xhci_hcd *xhci, u32 trb_type, u32 slot_id);
int xhci_queue_address_device(struct xhci_hcd *xhci, dma_addr_t in_ctx_ptr,
u32 slot_id);
@@ -1401,6 +1413,8 @@ int xhci_queue_bulk_tx(struct xhci_hcd *xhci, gfp_t mem_flags, struct urb *urb,
int slot_id, unsigned int ep_index);
int xhci_queue_intr_tx(struct xhci_hcd *xhci, gfp_t mem_flags, struct urb *urb,
int slot_id, unsigned int ep_index);
+int xhci_queue_isoc_tx_prepare(struct xhci_hcd *xhci, gfp_t mem_flags,
+ struct urb *urb, int slot_id, unsigned int ep_index);
int xhci_queue_configure_endpoint(struct xhci_hcd *xhci, dma_addr_t in_ctx_ptr,
u32 slot_id, bool command_must_succeed);
int xhci_queue_evaluate_context(struct xhci_hcd *xhci, dma_addr_t in_ctx_ptr,
OpenPOWER on IntegriCloud