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Diffstat (limited to 'EmbeddedPkg/Include/Protocol')
| -rw-r--r-- | EmbeddedPkg/Include/Protocol/UsbDevice.h | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/EmbeddedPkg/Include/Protocol/UsbDevice.h b/EmbeddedPkg/Include/Protocol/UsbDevice.h new file mode 100644 index 000000000..13a48dda0 --- /dev/null +++ b/EmbeddedPkg/Include/Protocol/UsbDevice.h @@ -0,0 +1,118 @@ +/** @file
+
+ Copyright (c) 2013-2014, ARM Ltd. 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_DEVICE_PROTOCOL_H__
+#define __USB_DEVICE_PROTOCOL_H__
+
+#include <IndustryStandard/Usb.h>
+
+extern EFI_GUID gUsbDeviceProtocolGuid;
+
+/*
+ * Note: This Protocol is just the bare minimum for Android Fastboot. It
+ * only makes sense for devices that only do Bulk Transfers and only have one
+ * endpoint.
+ */
+
+/*
+ Callback to be called when data is received.
+ Buffer is callee-allocated and it's the caller's responsibility to free it with
+ FreePool.
+
+ @param[in] Size Size in bytes of data.
+ @param[in] Buffer Pointer to data.
+*/
+typedef
+VOID
+(*USB_DEVICE_RX_CALLBACK) (
+ IN UINTN Size,
+ IN VOID *Buffer
+ );
+
+/*
+ Callback to be called when the host asks for data by sending an IN token
+ (excluding during the data stage of a control transfer).
+ When this function is called, data previously buffered by calling Send() has
+ been sent.
+
+ @param[in]Endpoint Endpoint index, as specified in endpoint descriptors, of
+ the endpoint the IN token was sent to.
+*/
+typedef
+VOID
+(*USB_DEVICE_TX_CALLBACK) (
+ IN UINT8 EndpointIndex
+ );
+
+/*
+ Put data in the Tx buffer to be sent on the next IN token.
+ Don't call this function again until the TxCallback has been called.
+
+ @param[in]Endpoint Endpoint index, as specified in endpoint descriptors, of
+ the endpoint to send the data from.
+ @param[in]Size Size in bytes of data.
+ @param[in]Buffer Pointer to data.
+
+ @retval EFI_SUCCESS The data was queued successfully.
+ @retval EFI_INVALID_PARAMETER There was an error sending the data.
+*/
+typedef
+EFI_STATUS
+(*USB_DEVICE_SEND) (
+ IN UINT8 EndpointIndex,
+ IN UINTN Size,
+ IN CONST VOID *Buffer
+ );
+
+/*
+ Restart the USB peripheral controller and respond to enumeration.
+
+ @param[in] DeviceDescriptor pointer to device descriptor
+ @param[in] Descriptors Array of pointers to buffers, where
+ Descriptors[n] contains the response to a
+ GET_DESCRIPTOR request for configuration n. From
+ USB Spec section 9.4.3:
+ "The first interface descriptor follows the
+ configuration descriptor. The endpoint
+ descriptors for the first interface follow the
+ first interface descriptor. If there are
+ additional interfaces, their interface
+ descriptor and endpoint descriptors follow the
+ first interface’s endpoint descriptors".
+
+ The size of each buffer is the TotalLength
+ member of the Configuration Descriptor.
+
+ The size of the array is
+ DeviceDescriptor->NumConfigurations.
+ @param[in]RxCallback See USB_DEVICE_RX_CALLBACK
+ @param[in]TxCallback See USB_DEVICE_TX_CALLBACK
+*/
+typedef
+EFI_STATUS
+(*USB_DEVICE_START) (
+ IN USB_DEVICE_DESCRIPTOR *DeviceDescriptor,
+ IN VOID **Descriptors,
+ IN USB_DEVICE_RX_CALLBACK RxCallback,
+ IN USB_DEVICE_TX_CALLBACK TxCallback
+ );
+
+struct _USB_DEVICE_PROTOCOL {
+ USB_DEVICE_START Start;
+ USB_DEVICE_SEND Send;
+};
+
+typedef struct _USB_DEVICE_PROTOCOL USB_DEVICE_PROTOCOL;
+
+#endif //ifndef __USB_DEVICE_PROTOCOL_H__
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