diff options
Diffstat (limited to 'MdeModulePkg/Bus/Usb')
| -rw-r--r-- | MdeModulePkg/Bus/Usb/UsbBusPei/UsbPeim.c | 3 | ||||
| -rw-r--r-- | MdeModulePkg/Bus/Usb/UsbBusPei/UsbPeim.h | 11 |
2 files changed, 14 insertions, 0 deletions
diff --git a/MdeModulePkg/Bus/Usb/UsbBusPei/UsbPeim.c b/MdeModulePkg/Bus/Usb/UsbBusPei/UsbPeim.c index 947864bd27..f350021862 100644 --- a/MdeModulePkg/Bus/Usb/UsbBusPei/UsbPeim.c +++ b/MdeModulePkg/Bus/Usb/UsbBusPei/UsbPeim.c @@ -720,6 +720,7 @@ PeiConfigureUsbDevice ( DEBUG ((EFI_D_ERROR, "PeiUsbSetDeviceAddress Failed: %r\n", Status));
return Status;
}
+ MicroSecondDelay (USB_SET_DEVICE_ADDRESS_STALL);
PeiUsbDevice->DeviceAddress = *DeviceAddress;
@@ -750,6 +751,7 @@ PeiConfigureUsbDevice ( if (EFI_ERROR (Status)) {
return Status;
}
+ MicroSecondDelay (USB_GET_CONFIG_DESCRIPTOR_STALL);
Status = PeiUsbSetConfiguration (
PeiServices,
@@ -809,6 +811,7 @@ PeiUsbGetAllConfiguration ( DEBUG ((EFI_D_ERROR, "PeiUsbGet Config Descriptor First Failed\n"));
return Status;
}
+ MicroSecondDelay (USB_GET_CONFIG_DESCRIPTOR_STALL);
ConfigDesc = (EFI_USB_CONFIG_DESCRIPTOR *) PeiUsbDevice->ConfigurationData;
ConfigDescLength = ConfigDesc->TotalLength;
diff --git a/MdeModulePkg/Bus/Usb/UsbBusPei/UsbPeim.h b/MdeModulePkg/Bus/Usb/UsbBusPei/UsbPeim.h index df459e7a6e..dff8eeb202 100644 --- a/MdeModulePkg/Bus/Usb/UsbBusPei/UsbPeim.h +++ b/MdeModulePkg/Bus/Usb/UsbBusPei/UsbPeim.h @@ -99,6 +99,17 @@ typedef struct { //
#define USB_SET_PORT_POWER_STALL (2 * USB_BUS_1_MILLISECOND)
+//
+// Wait for set device address, refers to specification
+// [USB20-9.2.6.3, it says 2ms]
+//
+#define USB_SET_DEVICE_ADDRESS_STALL (2 * USB_BUS_1_MILLISECOND)
+
+//
+// Wait for get configuration descriptor, set by experience
+//
+#define USB_GET_CONFIG_DESCRIPTOR_STALL (1 * USB_BUS_1_MILLISECOND)
+
/**
Submits control transfer to a target USB device.
|