diff options
Diffstat (limited to 'Core/MdeModulePkg/Bus/Usb/UsbBusDxe/UsbDesc.h')
| -rw-r--r-- | Core/MdeModulePkg/Bus/Usb/UsbBusDxe/UsbDesc.h | 233 |
1 files changed, 233 insertions, 0 deletions
diff --git a/Core/MdeModulePkg/Bus/Usb/UsbBusDxe/UsbDesc.h b/Core/MdeModulePkg/Bus/Usb/UsbBusDxe/UsbDesc.h new file mode 100644 index 0000000000..482a71f338 --- /dev/null +++ b/Core/MdeModulePkg/Bus/Usb/UsbBusDxe/UsbDesc.h @@ -0,0 +1,233 @@ +/** @file
+
+ Manage Usb Descriptor List
+
+Copyright (c) 2007 - 2014, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution. The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#ifndef _USB_DESCRIPTOR_H_
+#define _USB_DESCRIPTOR_H_
+
+#define USB_MAX_INTERFACE_SETTING 256
+
+//
+// The RequestType in EFI_USB_DEVICE_REQUEST is composed of
+// three fields: One bit direction, 2 bit type, and 5 bit
+// target.
+//
+#define USB_REQUEST_TYPE(Dir, Type, Target) \
+ ((UINT8)((((Dir) == EfiUsbDataIn ? 0x01 : 0) << 7) | (Type) | (Target)))
+
+//
+// A common header for usb standard descriptor.
+// Each stand descriptor has a length and type.
+//
+#pragma pack(1)
+typedef struct {
+ UINT8 Len;
+ UINT8 Type;
+} USB_DESC_HEAD;
+#pragma pack()
+
+
+//
+// Each USB device has a device descriptor. Each device may
+// have several configures. Each configure contains several
+// interfaces. Each interface may have several settings. Each
+// setting has several endpoints.
+//
+// EFI_USB_..._DESCRIPTOR must be the first member of the
+// structure.
+//
+typedef struct {
+ EFI_USB_ENDPOINT_DESCRIPTOR Desc;
+ UINT8 Toggle;
+} USB_ENDPOINT_DESC;
+
+typedef struct {
+ EFI_USB_INTERFACE_DESCRIPTOR Desc;
+ USB_ENDPOINT_DESC **Endpoints;
+} USB_INTERFACE_SETTING;
+
+//
+// An interface may have several settings. Use a
+// fixed max number of settings to simplify code.
+// It should sufice in most environments.
+//
+typedef struct {
+ USB_INTERFACE_SETTING* Settings[USB_MAX_INTERFACE_SETTING];
+ UINTN NumOfSetting;
+ UINTN ActiveIndex; // Index of active setting
+} USB_INTERFACE_DESC;
+
+typedef struct {
+ EFI_USB_CONFIG_DESCRIPTOR Desc;
+ USB_INTERFACE_DESC **Interfaces;
+} USB_CONFIG_DESC;
+
+typedef struct {
+ EFI_USB_DEVICE_DESCRIPTOR Desc;
+ USB_CONFIG_DESC **Configs;
+} USB_DEVICE_DESC;
+
+/**
+ USB standard control transfer support routine. This
+ function is used by USB device. It is possible that
+ the device's interfaces are still waiting to be
+ enumerated.
+
+ @param UsbDev The usb device.
+ @param Direction The direction of data transfer.
+ @param Type Standard / class specific / vendor specific.
+ @param Target The receiving target.
+ @param Request Which request.
+ @param Value The wValue parameter of the request.
+ @param Index The wIndex parameter of the request.
+ @param Buf The buffer to receive data into / transmit from.
+ @param Length The length of the buffer.
+
+ @retval EFI_SUCCESS The control request is executed.
+ @retval EFI_DEVICE_ERROR Failed to execute the control transfer.
+
+**/
+EFI_STATUS
+UsbCtrlRequest (
+ IN USB_DEVICE *UsbDev,
+ IN EFI_USB_DATA_DIRECTION Direction,
+ IN UINTN Type,
+ IN UINTN Target,
+ IN UINTN Request,
+ IN UINT16 Value,
+ IN UINT16 Index,
+ IN OUT VOID *Buf,
+ IN UINTN Length
+ );
+
+/**
+ Return the max packet size for endpoint zero. This function
+ is the first function called to get descriptors during bus
+ enumeration.
+
+ @param UsbDev The usb device.
+
+ @retval EFI_SUCCESS The max packet size of endpoint zero is retrieved.
+ @retval EFI_DEVICE_ERROR Failed to retrieve it.
+
+**/
+EFI_STATUS
+UsbGetMaxPacketSize0 (
+ IN USB_DEVICE *UsbDev
+ );
+
+/**
+ Free a device descriptor with its configurations.
+
+ @param DevDesc The device descriptor.
+
+ @return None.
+
+**/
+VOID
+UsbFreeDevDesc (
+ IN USB_DEVICE_DESC *DevDesc
+ );
+
+/**
+ Retrieve the indexed string for the language. It requires two
+ steps to get a string, first to get the string's length. Then
+ the string itself.
+
+ @param UsbDev The usb device.
+ @param StringIndex The index of the string to retrieve.
+ @param LangId Language ID.
+
+ @return The created string descriptor or NULL.
+
+**/
+EFI_USB_STRING_DESCRIPTOR*
+UsbGetOneString (
+ IN USB_DEVICE *UsbDev,
+ IN UINT8 StringIndex,
+ IN UINT16 LangId
+ );
+
+/**
+ Build the whole array of descriptors. This function must
+ be called after UsbGetMaxPacketSize0 returns the max packet
+ size correctly for endpoint 0.
+
+ @param UsbDev The Usb device.
+
+ @retval EFI_SUCCESS The descriptor table is build.
+ @retval EFI_OUT_OF_RESOURCES Failed to allocate resource for the descriptor.
+
+**/
+EFI_STATUS
+UsbBuildDescTable (
+ IN USB_DEVICE *UsbDev
+ );
+
+/**
+ Set the device's address.
+
+ @param UsbDev The device to set address to.
+ @param Address The address to set.
+
+ @retval EFI_SUCCESS The device is set to the address.
+ @retval Others Failed to set the device address.
+
+**/
+EFI_STATUS
+UsbSetAddress (
+ IN USB_DEVICE *UsbDev,
+ IN UINT8 Address
+ );
+
+/**
+ Set the device's configuration. This function changes
+ the device's internal state. UsbSelectConfig changes
+ the Usb bus's internal state.
+
+ @param UsbDev The USB device to set configure to.
+ @param ConfigIndex The configure index to set.
+
+ @retval EFI_SUCCESS The device is configured now.
+ @retval Others Failed to set the device configure.
+
+**/
+EFI_STATUS
+UsbSetConfig (
+ IN USB_DEVICE *UsbDev,
+ IN UINT8 ConfigIndex
+ );
+
+/**
+ Usb UsbIo interface to clear the feature. This is should
+ only be used by HUB which is considered a device driver
+ on top of the UsbIo interface.
+
+ @param UsbIo The UsbIo interface.
+ @param Target The target of the transfer: endpoint/device.
+ @param Feature The feature to clear.
+ @param Index The wIndex parameter.
+
+ @retval EFI_SUCCESS The device feature is cleared.
+ @retval Others Failed to clear the feature.
+
+**/
+EFI_STATUS
+UsbIoClearFeature (
+ IN EFI_USB_IO_PROTOCOL *UsbIo,
+ IN UINTN Target,
+ IN UINT16 Feature,
+ IN UINT16 Index
+ );
+#endif
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