Fixed unexpected timeout in Usb MassStorage Driver.

[mirror_edk2.git] / MdeModulePkg / Bus / Pci / EhciDxe / Ehci.h

diff --git a/MdeModulePkg/Bus/Pci/EhciDxe/Ehci.h b/MdeModulePkg/Bus/Pci/EhciDxe/Ehci.h
index 7eb61be05afa443eab5f7336b45fe455008d5e83..816587db8d97fe75583a0ec64705aa8f62adb9de 100644 (file)
--- a/MdeModulePkg/Bus/Pci/EhciDxe/Ehci.h
+++ b/MdeModulePkg/Bus/Pci/EhciDxe/Ehci.h
@@ -49,18 +49,35 @@ typedef struct _USB2_HC_DEV  USB2_HC_DEV;
 #include "EhciDebug.h"\r
 \r
 enum {\r
-  USB2_HC_DEV_SIGNATURE     = EFI_SIGNATURE_32 ('e', 'h', 'c', 'i'),\r
-  EHC_STALL_1_MICROSECOND   = 1,\r
-  EHC_STALL_1_MILLISECOND   = 1000 * EHC_STALL_1_MICROSECOND,\r
-  EHC_STALL_1_SECOND        = 1000 * EHC_STALL_1_MILLISECOND,\r
-\r
-  EHC_SET_PORT_RESET_TIME   = 50 * EHC_STALL_1_MILLISECOND,\r
-  EHC_CLEAR_PORT_RESET_TIME = EHC_STALL_1_MILLISECOND,\r
-  EHC_GENERIC_TIME          = 10 * EHC_STALL_1_MILLISECOND,\r
-  EHC_SYNC_POLL_TIME        = 20 * EHC_STALL_1_MICROSECOND,\r
-  EHC_ASYNC_POLL_TIME       = 50 * 10000UL,                 // The unit of time is 100us\r
-\r
-  EHC_TPL                   = TPL_NOTIFY\r
+  EHC_1_MICROSECOND            = 1,\r
+  EHC_1_MILLISECOND            = 1000 * EHC_1_MICROSECOND,\r
+  EHC_1_SECOND                 = 1000 * EHC_1_MILLISECOND,\r
+\r
+  //\r
+  // EHCI register operation timeout, set by experience\r
+  //\r
+  EHC_RESET_TIMEOUT            = 1 * EHC_1_SECOND,\r
+  EHC_GENERIC_TIMEOUT          = 10 * EHC_1_MILLISECOND,\r
+\r
+  //\r
+  // Wait for roothub port power stable, refers to Spec[EHCI1.0-2.3.9]\r
+  //\r
+  EHC_ROOT_PORT_RECOVERY_STALL = 20 * EHC_1_MILLISECOND,\r
+\r
+  //\r
+  // Sync and Async transfer polling interval, set by experience, \r
+  // and the unit of Async is 100us, means 50ms as interval.\r
+  //\r
+  EHC_SYNC_POLL_INTERVAL       = 20 * EHC_1_MICROSECOND,\r
+  EHC_ASYNC_POLL_INTERVAL      = 50 * 10000U,                  \r
+\r
+  //\r
+  // EHC raises TPL to TPL_NOTIFY to serialize all its operations\r
+  // to protect shared data structures.\r
+  //\r
+  EHC_TPL                      = TPL_NOTIFY,\r
+\r
+  USB2_HC_DEV_SIGNATURE        = EFI_SIGNATURE_32 ('e', 'h', 'c', 'i'),\r
 };\r
 \r
 //\r