MdeModulePkg/UsbBusDxe: Timing tunning for better boot performance.

[mirror_edk2.git] / MdeModulePkg / Bus / Usb / UsbBusDxe / UsbBus.h

diff --git a/MdeModulePkg/Bus/Usb/UsbBusDxe/UsbBus.h b/MdeModulePkg/Bus/Usb/UsbBusDxe/UsbBus.h
index ad2f95261bbda3351f24306fbd939d5bd8a8a335..094aea21cd13263cc911387305e7d082f58b4d69 100644 (file)
--- a/MdeModulePkg/Bus/Usb/UsbBusDxe/UsbBus.h
+++ b/MdeModulePkg/Bus/Usb/UsbBusDxe/UsbBus.h
@@ -60,10 +60,10 @@ typedef struct _USB_HUB_API    USB_HUB_API;
 \r
 //\r
 // Roothub and hub's polling interval, set by experience,\r
-// The unit of roothub is 100us, means 1s as interval, and\r
+// The unit of roothub is 100us, means 100ms as interval, and\r
 // the unit of hub is 1ms, means 64ms as interval.\r
 //\r
-#define USB_ROOTHUB_POLL_INTERVAL (1000 * 10000U)\r
+#define USB_ROOTHUB_POLL_INTERVAL (100 * 10000U)\r
 #define USB_HUB_POLL_INTERVAL     64\r
 \r
 //\r
@@ -75,13 +75,13 @@ typedef struct _USB_HUB_API    USB_HUB_API;
 //\r
 // Wait for port statue reg change, set by experience\r
 //\r
-#define USB_WAIT_PORT_STS_CHANGE_STALL (5 * USB_BUS_1_MILLISECOND)\r
+#define USB_WAIT_PORT_STS_CHANGE_STALL (100)\r
 \r
 //\r
 // Wait for set device address, refers to specification\r
 // [USB20-9.2.6.3, it says 2ms]\r
 //\r
-#define USB_SET_DEVICE_ADDRESS_STALL   (20 * USB_BUS_1_MILLISECOND)\r
+#define USB_SET_DEVICE_ADDRESS_STALL   (2 * USB_BUS_1_MILLISECOND)\r
 \r
 //\r
 // Wait for retry max packet size, set by experience\r
@@ -99,7 +99,7 @@ typedef struct _USB_HUB_API    USB_HUB_API;
 // [USB20-7.1.7.5, it says 10ms for hub and 50ms for\r
 // root hub]\r
 //\r
-#define USB_SET_PORT_RESET_STALL       (20 * USB_BUS_1_MILLISECOND)\r
+#define USB_SET_PORT_RESET_STALL       (10 * USB_BUS_1_MILLISECOND)\r
 #define USB_SET_ROOT_PORT_RESET_STALL  (50 * USB_BUS_1_MILLISECOND)\r
 \r
 //\r