USB: xHCI: PCI power management implementation

[linux-flexiantxendom0.git] / drivers / usb / host / xhci.h

diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index 196e21f..c08928a 100644 (file)
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -191,7 +191,7 @@ struct xhci_op_regs {
 /* bits 4:6 are reserved (and should be preserved on writes). */
 /* light reset (port status stays unchanged) - reset completed when this is 0 */
 #define CMD_LRESET     (1 << 7)
-/* FIXME: ignoring host controller save/restore state for now. */
+/* host controller save/restore state. */
 #define CMD_CSS                (1 << 8)
 #define CMD_CRS                (1 << 9)
 /* Enable Wrap Event - '1' means xHC generates an event when MFINDEX wraps. */
@@ -1130,6 +1130,17 @@ struct urb_priv {
 #define XHCI_STOP_EP_CMD_TIMEOUT       5
 /* XXX: Make these module parameters */
 
+struct s3_save {
+       u32     command;
+       u32     dev_nt;
+       u64     dcbaa_ptr;
+       u32     config_reg;
+       u32     irq_pending;
+       u32     irq_control;
+       u32     erst_size;
+       u64     erst_base;
+       u64     erst_dequeue;
+};
 
 /* There is one ehci_hci structure per controller */
 struct xhci_hcd {
@@ -1198,6 +1209,7 @@ struct xhci_hcd {
        unsigned long           next_statechange;
 
        u32                     command;
+       struct s3_save          s3;
 /* Host controller is dying - not responding to commands. "I'm not dead yet!"
  *
  * xHC interrupts have been disabled and a watchdog timer will (or has already)
@@ -1393,6 +1405,8 @@ int xhci_init(struct usb_hcd *hcd);
 int xhci_run(struct usb_hcd *hcd);
 void xhci_stop(struct usb_hcd *hcd);
 void xhci_shutdown(struct usb_hcd *hcd);
+int xhci_suspend(struct xhci_hcd *xhci);
+int xhci_resume(struct xhci_hcd *xhci, bool hibernated);
 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);