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| -rw-r--r-- | include/VBox/vusb.h | 1320 |
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diff --git a/include/VBox/vusb.h b/include/VBox/vusb.h new file mode 100644 index 00000000..55bc57fc --- /dev/null +++ b/include/VBox/vusb.h @@ -0,0 +1,1320 @@ +/** @file + * VUSB - VirtualBox USB. (DEV,VMM) + */ + +/* + * Copyright (C) 2006-2020 Oracle Corporation + * + * This file is part of VirtualBox Open Source Edition (OSE), as + * available from http://www.virtualbox.org. This file is free software; + * you can redistribute it and/or modify it under the terms of the GNU + * General Public License (GPL) as published by the Free Software + * Foundation, in version 2 as it comes in the "COPYING" file of the + * VirtualBox OSE distribution. VirtualBox OSE is distributed in the + * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL) only, as it comes in the "COPYING.CDDL" file of the + * VirtualBox OSE distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + */ + +#ifndef VBOX_INCLUDED_vusb_h +#define VBOX_INCLUDED_vusb_h +#ifndef RT_WITHOUT_PRAGMA_ONCE +# pragma once +#endif + +#include <VBox/cdefs.h> +#include <VBox/types.h> +#include <iprt/assert.h> + +struct PDMLED; + +RT_C_DECLS_BEGIN + +/** @defgroup grp_vusb VBox USB API + * @{ + */ + +/** @defgroup grp_vusb_std Standard Stuff + * @{ */ + +/** Frequency of USB bus (from spec). */ +#define VUSB_BUS_HZ 12000000 + + +/** @name USB Descriptor types (from spec) + * @{ */ +#define VUSB_DT_DEVICE 0x01 +#define VUSB_DT_CONFIG 0x02 +#define VUSB_DT_STRING 0x03 +#define VUSB_DT_INTERFACE 0x04 +#define VUSB_DT_ENDPOINT 0x05 +#define VUSB_DT_DEVICE_QUALIFIER 0x06 +#define VUSB_DT_OTHER_SPEED_CFG 0x07 +#define VUSB_DT_INTERFACE_POWER 0x08 +#define VUSB_DT_INTERFACE_ASSOCIATION 0x0B +#define VUSB_DT_BOS 0x0F +#define VUSB_DT_DEVICE_CAPABILITY 0x10 +#define VUSB_DT_SS_ENDPOINT_COMPANION 0x30 +/** @} */ + +/** @name USB Descriptor minimum sizes (from spec) + * @{ */ +#define VUSB_DT_DEVICE_MIN_LEN 18 +#define VUSB_DT_CONFIG_MIN_LEN 9 +#define VUSB_DT_CONFIG_STRING_MIN_LEN 2 +#define VUSB_DT_INTERFACE_MIN_LEN 9 +#define VUSB_DT_ENDPOINT_MIN_LEN 7 +#define VUSB_DT_SSEP_COMPANION_MIN_LEN 6 +/** @} */ + +/** @name USB Device Capability Type Codes (from spec) + * @{ */ +#define VUSB_DCT_WIRELESS_USB 0x01 +#define VUSB_DCT_USB_20_EXTENSION 0x02 +#define VUSB_DCT_SUPERSPEED_USB 0x03 +#define VUSB_DCT_CONTAINER_ID 0x04 +/** @} */ + + +#pragma pack(1) /* ensure byte packing of the descriptors. */ + +/** + * USB language id descriptor (from specs). + */ +typedef struct VUSBDESCLANGID +{ + uint8_t bLength; + uint8_t bDescriptorType; +} VUSBDESCLANGID; +/** Pointer to a USB language id descriptor. */ +typedef VUSBDESCLANGID *PVUSBDESCLANGID; +/** Pointer to a const USB language id descriptor. */ +typedef const VUSBDESCLANGID *PCVUSBDESCLANGID; + + +/** + * USB string descriptor (from specs). + */ +typedef struct VUSBDESCSTRING +{ + uint8_t bLength; + uint8_t bDescriptorType; +} VUSBDESCSTRING; +/** Pointer to a USB string descriptor. */ +typedef VUSBDESCSTRING *PVUSBDESCSTRING; +/** Pointer to a const USB string descriptor. */ +typedef const VUSBDESCSTRING *PCVUSBDESCSTRING; + + +/** + * USB device descriptor (from spec) + */ +typedef struct VUSBDESCDEVICE +{ + uint8_t bLength; + uint8_t bDescriptorType; + uint16_t bcdUSB; + uint8_t bDeviceClass; + uint8_t bDeviceSubClass; + uint8_t bDeviceProtocol; + uint8_t bMaxPacketSize0; + uint16_t idVendor; + uint16_t idProduct; + uint16_t bcdDevice; + uint8_t iManufacturer; + uint8_t iProduct; + uint8_t iSerialNumber; + uint8_t bNumConfigurations; +} VUSBDESCDEVICE; +/** Pointer to a USB device descriptor. */ +typedef VUSBDESCDEVICE *PVUSBDESCDEVICE; +/** Pointer to a const USB device descriptor. */ +typedef const VUSBDESCDEVICE *PCVUSBDESCDEVICE; + +/** + * USB device qualifier (from spec 9.6.2) + */ +struct VUSBDEVICEQUALIFIER +{ + uint8_t bLength; + uint8_t bDescriptorType; + uint16_t bcdUsb; + uint8_t bDeviceClass; + uint8_t bDeviceSubClass; + uint8_t bDeviceProtocol; + uint8_t bMaxPacketSize0; + uint8_t bNumConfigurations; + uint8_t bReserved; +}; + +typedef struct VUSBDEVICEQUALIFIER VUSBDEVICEQUALIFIER; +typedef VUSBDEVICEQUALIFIER *PVUSBDEVICEQUALIFIER; + + +/** + * USB configuration descriptor (from spec). + */ +typedef struct VUSBDESCCONFIG +{ + uint8_t bLength; + uint8_t bDescriptorType; + uint16_t wTotalLength; /**< recalculated by VUSB when involved in URB. */ + uint8_t bNumInterfaces; + uint8_t bConfigurationValue; + uint8_t iConfiguration; + uint8_t bmAttributes; + uint8_t MaxPower; +} VUSBDESCCONFIG; +/** Pointer to a USB configuration descriptor. */ +typedef VUSBDESCCONFIG *PVUSBDESCCONFIG; +/** Pointer to a readonly USB configuration descriptor. */ +typedef const VUSBDESCCONFIG *PCVUSBDESCCONFIG; + + +/** + * USB interface association descriptor (from USB ECN Interface Association Descriptors) + */ +typedef struct VUSBDESCIAD +{ + uint8_t bLength; + uint8_t bDescriptorType; + uint8_t bFirstInterface; + uint8_t bInterfaceCount; + uint8_t bFunctionClass; + uint8_t bFunctionSubClass; + uint8_t bFunctionProtocol; + uint8_t iFunction; +} VUSBDESCIAD; +/** Pointer to a USB interface association descriptor. */ +typedef VUSBDESCIAD *PVUSBDESCIAD; +/** Pointer to a readonly USB interface association descriptor. */ +typedef const VUSBDESCIAD *PCVUSBDESCIAD; + + +/** + * USB interface descriptor (from spec) + */ +typedef struct VUSBDESCINTERFACE +{ + uint8_t bLength; + uint8_t bDescriptorType; + uint8_t bInterfaceNumber; + uint8_t bAlternateSetting; + uint8_t bNumEndpoints; + uint8_t bInterfaceClass; + uint8_t bInterfaceSubClass; + uint8_t bInterfaceProtocol; + uint8_t iInterface; +} VUSBDESCINTERFACE; +/** Pointer to a USB interface descriptor. */ +typedef VUSBDESCINTERFACE *PVUSBDESCINTERFACE; +/** Pointer to a const USB interface descriptor. */ +typedef const VUSBDESCINTERFACE *PCVUSBDESCINTERFACE; + + +/** + * USB endpoint descriptor (from spec) + */ +typedef struct VUSBDESCENDPOINT +{ + uint8_t bLength; + uint8_t bDescriptorType; + uint8_t bEndpointAddress; + uint8_t bmAttributes; + uint16_t wMaxPacketSize; + uint8_t bInterval; +} VUSBDESCENDPOINT; +/** Pointer to a USB endpoint descriptor. */ +typedef VUSBDESCENDPOINT *PVUSBDESCENDPOINT; +/** Pointer to a const USB endpoint descriptor. */ +typedef const VUSBDESCENDPOINT *PCVUSBDESCENDPOINT; + + +/** + * USB SuperSpeed endpoint companion descriptor (from USB3 spec) + */ +typedef struct VUSBDESCSSEPCOMPANION +{ + uint8_t bLength; + uint8_t bDescriptorType; + uint8_t bMaxBurst; + uint8_t bmAttributes; + uint16_t wBytesPerInterval; +} VUSBDESCSSEPCOMPANION; +/** Pointer to a USB endpoint companion descriptor. */ +typedef VUSBDESCSSEPCOMPANION *PVUSBDESCSSEPCOMPANION; +/** Pointer to a const USB endpoint companion descriptor. */ +typedef const VUSBDESCSSEPCOMPANION *PCVUSBDESCSSEPCOMPANION; + + +/** + * USB Binary Device Object Store, aka BOS (from USB3 spec) + */ +typedef struct VUSBDESCBOS +{ + uint8_t bLength; + uint8_t bDescriptorType; + uint16_t wTotalLength; + uint8_t bNumDeviceCaps; +} VUSBDESCBOS; +/** Pointer to a USB BOS descriptor. */ +typedef VUSBDESCBOS *PVUSBDESCBOS; +/** Pointer to a const USB BOS descriptor. */ +typedef const VUSBDESCBOS *PCVUSBDESCBOS; + + +/** + * Generic USB Device Capability Descriptor within BOS (from USB3 spec) + */ +typedef struct VUSBDESCDEVICECAP +{ + uint8_t bLength; + uint8_t bDescriptorType; + uint8_t bDevCapabilityType; + uint8_t aCapSpecific[1]; +} VUSBDESCDEVICECAP; +/** Pointer to a USB device capability descriptor. */ +typedef VUSBDESCDEVICECAP *PVUSBDESCDEVICECAP; +/** Pointer to a const USB device capability descriptor. */ +typedef const VUSBDESCDEVICECAP *PCVUSBDESCDEVICECAP; + + +/** + * SuperSpeed USB Device Capability Descriptor within BOS + */ +typedef struct VUSBDESCSSDEVCAP +{ + uint8_t bLength; + uint8_t bDescriptorType; /* DEVICE CAPABILITY */ + uint8_t bDevCapabilityType; /* SUPERSPEED_USB */ + uint8_t bmAttributes; + uint16_t wSpeedsSupported; + uint8_t bFunctionalitySupport; + uint8_t bU1DevExitLat; + uint16_t wU2DevExitLat; +} VUSBDESCSSDEVCAP; +/** Pointer to an SS USB device capability descriptor. */ +typedef VUSBDESCSSDEVCAP *PVUSBDESCSSDEVCAP; +/** Pointer to a const SS USB device capability descriptor. */ +typedef const VUSBDESCSSDEVCAP *PCVUSBDESCSSDEVCAP; + + +/** + * USB 2.0 Extension Descriptor within BOS + */ +typedef struct VUSBDESCUSB2EXT +{ + uint8_t bLength; + uint8_t bDescriptorType; /* DEVICE CAPABILITY */ + uint8_t bDevCapabilityType; /* USB 2.0 EXTENSION */ + uint8_t bmAttributes; +} VUSBDESCUSB2EXT; +/** Pointer to a USB 2.0 extension capability descriptor. */ +typedef VUSBDESCUSB2EXT *PVUSBDESCUSB2EXT; +/** Pointer to a const USB 2.0 extension capability descriptor. */ +typedef const VUSBDESCUSB2EXT *PCVUSBDESCUSB2EXT; + + +#pragma pack() /* end of the byte packing. */ + + +/** + * USB configuration descriptor, the parsed variant used by VUSB. + */ +typedef struct VUSBDESCCONFIGEX +{ + /** The USB descriptor data. + * @remark The wTotalLength member is recalculated before the data is passed to the guest. */ + VUSBDESCCONFIG Core; + /** Pointer to additional descriptor bytes following what's covered by VUSBDESCCONFIG. */ + void *pvMore; + /** Pointer to additional class- or vendor-specific interface descriptors. */ + const void *pvClass; + /** Size of class- or vendor-specific descriptors. */ + uint16_t cbClass; + /** Pointer to an array of the interfaces referenced in the configuration. + * Core.bNumInterfaces in size. */ + const struct VUSBINTERFACE *paIfs; + /** Pointer to the original descriptor data read from the device. */ + const void *pvOriginal; +} VUSBDESCCONFIGEX; +/** Pointer to a parsed USB configuration descriptor. */ +typedef VUSBDESCCONFIGEX *PVUSBDESCCONFIGEX; +/** Pointer to a const parsed USB configuration descriptor. */ +typedef const VUSBDESCCONFIGEX *PCVUSBDESCCONFIGEX; + + +/** + * For tracking the alternate interface settings of a configuration. + */ +typedef struct VUSBINTERFACE +{ + /** Pointer to an array of interfaces. */ + const struct VUSBDESCINTERFACEEX *paSettings; + /** The number of entries in the array. */ + uint32_t cSettings; +} VUSBINTERFACE; +/** Pointer to a VUSBINTERFACE. */ +typedef VUSBINTERFACE *PVUSBINTERFACE; +/** Pointer to a const VUSBINTERFACE. */ +typedef const VUSBINTERFACE *PCVUSBINTERFACE; + + +/** + * USB interface descriptor, the parsed variant used by VUSB. + */ +typedef struct VUSBDESCINTERFACEEX +{ + /** The USB descriptor data. */ + VUSBDESCINTERFACE Core; + /** Pointer to additional descriptor bytes following what's covered by VUSBDESCINTERFACE. */ + const void *pvMore; + /** Pointer to additional class- or vendor-specific interface descriptors. */ + const void *pvClass; + /** Size of class- or vendor-specific descriptors. */ + uint16_t cbClass; + /** Pointer to an array of the endpoints referenced by the interface. + * Core.bNumEndpoints in size. */ + const struct VUSBDESCENDPOINTEX *paEndpoints; + /** Interface association descriptor, which prepends a group of interfaces, + * starting with this interface. */ + PCVUSBDESCIAD pIAD; + /** Size of interface association descriptor. */ + uint16_t cbIAD; +} VUSBDESCINTERFACEEX; +/** Pointer to an prased USB interface descriptor. */ +typedef VUSBDESCINTERFACEEX *PVUSBDESCINTERFACEEX; +/** Pointer to a const parsed USB interface descriptor. */ +typedef const VUSBDESCINTERFACEEX *PCVUSBDESCINTERFACEEX; + + +/** + * USB endpoint descriptor, the parsed variant used by VUSB. + */ +typedef struct VUSBDESCENDPOINTEX +{ + /** The USB descriptor data. + * @remark The wMaxPacketSize member is converted to native endian. */ + VUSBDESCENDPOINT Core; + /** Pointer to additional descriptor bytes following what's covered by VUSBDESCENDPOINT. */ + const void *pvMore; + /** Pointer to additional class- or vendor-specific endpoint descriptors. */ + const void *pvClass; + /** Size of class- or vendor-specific descriptors. */ + uint16_t cbClass; + /** Pointer to SuperSpeed endpoint companion descriptor (SS endpoints only). */ + const void *pvSsepc; + /** Size of SuperSpeed endpoint companion descriptor. + * @remark Must be non-zero for SuperSpeed endpoints. */ + uint16_t cbSsepc; +} VUSBDESCENDPOINTEX; +/** Pointer to a parsed USB endpoint descriptor. */ +typedef VUSBDESCENDPOINTEX *PVUSBDESCENDPOINTEX; +/** Pointer to a const parsed USB endpoint descriptor. */ +typedef const VUSBDESCENDPOINTEX *PCVUSBDESCENDPOINTEX; + + +/** @name USB Control message recipient codes (from spec) + * @{ */ +#define VUSB_TO_DEVICE 0x0 +#define VUSB_TO_INTERFACE 0x1 +#define VUSB_TO_ENDPOINT 0x2 +#define VUSB_TO_OTHER 0x3 +#define VUSB_RECIP_MASK 0x1f +/** @} */ + +/** @name USB control pipe setup packet structure (from spec) + * @{ */ +#define VUSB_REQ_SHIFT (5) +#define VUSB_REQ_STANDARD (0x0 << VUSB_REQ_SHIFT) +#define VUSB_REQ_CLASS (0x1 << VUSB_REQ_SHIFT) +#define VUSB_REQ_VENDOR (0x2 << VUSB_REQ_SHIFT) +#define VUSB_REQ_RESERVED (0x3 << VUSB_REQ_SHIFT) +#define VUSB_REQ_MASK (0x3 << VUSB_REQ_SHIFT) +/** @} */ + +#define VUSB_DIR_TO_DEVICE 0x00 +#define VUSB_DIR_TO_HOST 0x80 +#define VUSB_DIR_MASK 0x80 + +/** + * USB Setup request (from spec) + */ +typedef struct vusb_setup +{ + uint8_t bmRequestType; + uint8_t bRequest; + uint16_t wValue; + uint16_t wIndex; + uint16_t wLength; +} VUSBSETUP; +/** Pointer to a setup request. */ +typedef VUSBSETUP *PVUSBSETUP; +/** Pointer to a const setup request. */ +typedef const VUSBSETUP *PCVUSBSETUP; + +/** @name USB Standard device requests (from spec) + * @{ */ +#define VUSB_REQ_GET_STATUS 0x00 +#define VUSB_REQ_CLEAR_FEATURE 0x01 +#define VUSB_REQ_SET_FEATURE 0x03 +#define VUSB_REQ_SET_ADDRESS 0x05 +#define VUSB_REQ_GET_DESCRIPTOR 0x06 +#define VUSB_REQ_SET_DESCRIPTOR 0x07 +#define VUSB_REQ_GET_CONFIGURATION 0x08 +#define VUSB_REQ_SET_CONFIGURATION 0x09 +#define VUSB_REQ_GET_INTERFACE 0x0a +#define VUSB_REQ_SET_INTERFACE 0x0b +#define VUSB_REQ_SYNCH_FRAME 0x0c +#define VUSB_REQ_MAX 0x0d +/** @} */ + +/** @} */ /* end of grp_vusb_std */ + + + +/** @name USB Standard version flags. + * @{ */ +/** Indicates USB 1.1 support. */ +#define VUSB_STDVER_11 RT_BIT(1) +/** Indicates USB 2.0 support. */ +#define VUSB_STDVER_20 RT_BIT(2) +/** Indicates USB 3.0 support. */ +#define VUSB_STDVER_30 RT_BIT(3) +/** @} */ + +/** + * USB port/device speeds. + */ +typedef enum VUSBSPEED +{ + /** Undetermined/unknown speed. */ + VUSB_SPEED_UNKNOWN = 0, + /** Low-speed (LS), 1.5 Mbit/s, USB 1.0. */ + VUSB_SPEED_LOW, + /** Full-speed (FS), 12 Mbit/s, USB 1.1. */ + VUSB_SPEED_FULL, + /** High-speed (HS), 480 Mbit/s, USB 2.0. */ + VUSB_SPEED_HIGH, + /** Variable speed, wireless USB 2.5. */ + VUSB_SPEED_VARIABLE, + /** SuperSpeed (SS), 5.0 Gbit/s, USB 3.0. */ + VUSB_SPEED_SUPER, + /** SuperSpeed+ (SS+), 10.0 Gbit/s, USB 3.1. */ + VUSB_SPEED_SUPERPLUS, + /** The usual 32-bit hack. */ + VUSB_SPEED_32BIT_HACK = 0x7fffffff +} VUSBSPEED; + +/** + * VUSB transfer direction. + */ +typedef enum VUSBDIRECTION +{ + /** Setup */ + VUSBDIRECTION_SETUP = 0, +#define VUSB_DIRECTION_SETUP VUSBDIRECTION_SETUP + /** In - Device to host. */ + VUSBDIRECTION_IN = 1, +#define VUSB_DIRECTION_IN VUSBDIRECTION_IN + /** Out - Host to device. */ + VUSBDIRECTION_OUT = 2, +#define VUSB_DIRECTION_OUT VUSBDIRECTION_OUT + /** Invalid direction */ + VUSBDIRECTION_INVALID = 0x7f +} VUSBDIRECTION; + +/** + * VUSB Transfer types. + */ +typedef enum VUSBXFERTYPE +{ + /** Control message. Used to represent a single control transfer. */ + VUSBXFERTYPE_CTRL = 0, + /* Isochronous transfer. */ + VUSBXFERTYPE_ISOC, + /** Bulk transfer. */ + VUSBXFERTYPE_BULK, + /** Interrupt transfer. */ + VUSBXFERTYPE_INTR, + /** Complete control message. Used to represent an entire control message. */ + VUSBXFERTYPE_MSG, + /** Invalid transfer type. */ + VUSBXFERTYPE_INVALID = 0x7f +} VUSBXFERTYPE; + +/** Number of valid USB transfer types - KEEP in sync with VUSBXFERTYPE!. */ +#define VUSBXFERTYPE_ELEMENTS (5) + +/** Pointer to a VBox USB device interface. */ +typedef struct VUSBIDEVICE *PVUSBIDEVICE; + +/** Pointer to a VUSB RootHub port interface. */ +typedef struct VUSBIROOTHUBPORT *PVUSBIROOTHUBPORT; + +/** Pointer to an USB request descriptor. */ +typedef struct VUSBURB *PVUSBURB; + + + +/** + * VBox USB port bitmap. + * + * Bit 0 == Port 0, ... , Bit 127 == Port 127. + */ +typedef struct VUSBPORTBITMAP +{ + /** 128 bits */ + char ach[16]; +} VUSBPORTBITMAP; +/** Pointer to a VBox USB port bitmap. */ +typedef VUSBPORTBITMAP *PVUSBPORTBITMAP; + +#ifndef RDESKTOP + +/** + * The VUSB RootHub port interface provided by the HCI (down). + * Pair with VUSBIROOTCONNECTOR + */ +typedef struct VUSBIROOTHUBPORT +{ + /** + * Get the number of available ports in the hub. + * + * @returns The number of ports available. + * @param pInterface Pointer to this structure. + * @param pAvailable Bitmap indicating the available ports. Set bit == available port. + */ + DECLR3CALLBACKMEMBER(unsigned, pfnGetAvailablePorts,(PVUSBIROOTHUBPORT pInterface, PVUSBPORTBITMAP pAvailable)); + + /** + * Gets the supported USB versions. + * + * @returns The mask of supported USB versions. + * @param pInterface Pointer to this structure. + */ + DECLR3CALLBACKMEMBER(uint32_t, pfnGetUSBVersions,(PVUSBIROOTHUBPORT pInterface)); + + /** + * A device is being attached to a port in the roothub. + * + * @param pInterface Pointer to this structure. + * @param pDev Pointer to the device being attached. + * @param uPort The port number assigned to the device. + */ + DECLR3CALLBACKMEMBER(int, pfnAttach,(PVUSBIROOTHUBPORT pInterface, PVUSBIDEVICE pDev, unsigned uPort)); + + /** + * A device is being detached from a port in the roothub. + * + * @param pInterface Pointer to this structure. + * @param pDev Pointer to the device being detached. + * @param uPort The port number assigned to the device. + */ + DECLR3CALLBACKMEMBER(void, pfnDetach,(PVUSBIROOTHUBPORT pInterface, PVUSBIDEVICE pDev, unsigned uPort)); + + /** + * Reset the root hub. + * + * @returns VBox status code. + * @param pInterface Pointer to this structure. + * @param pResetOnLinux Whether or not to do real reset on linux. + */ + DECLR3CALLBACKMEMBER(int, pfnReset,(PVUSBIROOTHUBPORT pInterface, bool fResetOnLinux)); + + /** + * Transfer completion callback routine. + * + * VUSB will call this when a transfer have been completed + * in a one or another way. + * + * @param pInterface Pointer to this structure. + * @param pUrb Pointer to the URB in question. + */ + DECLR3CALLBACKMEMBER(void, pfnXferCompletion,(PVUSBIROOTHUBPORT pInterface, PVUSBURB urb)); + + /** + * Handle transfer errors. + * + * VUSB calls this when a transfer attempt failed. This function will respond + * indicating whether to retry or complete the URB with failure. + * + * @returns Retry indicator. + * @param pInterface Pointer to this structure. + * @param pUrb Pointer to the URB in question. + */ + DECLR3CALLBACKMEMBER(bool, pfnXferError,(PVUSBIROOTHUBPORT pInterface, PVUSBURB pUrb)); + + /** + * Processes a new frame if periodic frame processing is enabled. + * + * @returns Flag whether there was activity which influences the frame rate. + * @param pInterface Pointer to this structure. + * @param u32FrameNo The frame number. + */ + DECLR3CALLBACKMEMBER(bool, pfnStartFrame, (PVUSBIROOTHUBPORT pInterface, uint32_t u32FrameNo)); + + /** + * Informs the callee about a change in the frame rate due to too many idle cycles or + * when seeing activity after some idle time. + * + * @returns nothing. + * @param pInterface Pointer to this structure. + * @param u32FrameRate The new frame rate. + */ + DECLR3CALLBACKMEMBER(void, pfnFrameRateChanged, (PVUSBIROOTHUBPORT pInterface, uint32_t u32FrameRate)); + + /** Alignment dummy. */ + RTR3PTR Alignment; + +} VUSBIROOTHUBPORT; +/** VUSBIROOTHUBPORT interface ID. */ +# define VUSBIROOTHUBPORT_IID "6571aece-6c33-4714-a8ac-9508a3b8b429" + +/** Pointer to a VUSB RootHub connector interface. */ +typedef struct VUSBIROOTHUBCONNECTOR *PVUSBIROOTHUBCONNECTOR; +/** + * The VUSB RootHub connector interface provided by the VBox USB RootHub driver + * (up). + * Pair with VUSBIROOTHUBPORT. + */ +typedef struct VUSBIROOTHUBCONNECTOR +{ + /** + * Sets the URB parameters for the caller. + * + * @returns VBox status code. + * @param pInterface Pointer to this struct. + * @param cbHci Size of the data private to the HCI for each URB when allocated. + * @param cbHciTd Size of one transfer descriptor. The number of transfer descriptors + * is given VUSBIROOTHUBCONNECTOR::pfnNewUrb for each URB to calculate the + * final amount of memory required for the TDs. + * + * @note This must be called before starting to allocate any URB or otherwise there will be no + * data available for the HCI. + */ + DECLR3CALLBACKMEMBER(int, pfnSetUrbParams, (PVUSBIROOTHUBCONNECTOR pInterface, size_t cbHci, size_t cbHciTd)); + + /** + * Allocates a new URB for a transfer. + * + * Either submit using pfnSubmitUrb or free using VUSBUrbFree(). + * + * @returns Pointer to a new URB. + * @returns NULL on failure - try again later. + * This will not fail if the device wasn't found. We'll fail it + * at submit time, since that makes the usage of this api simpler. + * @param pInterface Pointer to this struct. + * @param DstAddress The destination address of the URB. + * @param pDev Optional device pointer the URB is for. + * @param enmType Type of the URB. + * @param enmDir Data transfer direction. + * @param cbData The amount of data space required. + * @param cTds The amount of TD space. + * @param pszTag Custom URB tag assigned by the caller, only for + * logged builds and optional. + * + * @note pDev should be NULL in most cases. The only useful case is for USB3 where + * it is required for the SET_ADDRESS request because USB3 uses unicast traffic. + */ + DECLR3CALLBACKMEMBER(PVUSBURB, pfnNewUrb,(PVUSBIROOTHUBCONNECTOR pInterface, uint8_t DstAddress, PVUSBIDEVICE pDev, + VUSBXFERTYPE enmType, VUSBDIRECTION enmDir, uint32_t cbData, uint32_t cTds, const char *pszTag)); + + /** + * Free an URB not submitted yet. + * + * @returns VBox status code. + * @param pInterface Pointer to this struct. + * @param pUrb Pointer to the URB to free returned by VUSBIROOTHUBCONNECTOR::pfnNewUrb. + */ + DECLR3CALLBACKMEMBER(int, pfnFreeUrb, (PVUSBIROOTHUBCONNECTOR pInterface, PVUSBURB pUrb)); + + /** + * Submits a URB for transfer. + * The transfer will do asynchronously if possible. + * + * @returns VBox status code. + * @param pInterface Pointer to this struct. + * @param pUrb Pointer to the URB returned by pfnNewUrb. + * The URB will be freed in case of failure. + * @param pLed Pointer to USB Status LED + */ + DECLR3CALLBACKMEMBER(int, pfnSubmitUrb,(PVUSBIROOTHUBCONNECTOR pInterface, PVUSBURB pUrb, struct PDMLED *pLed)); + + /** + * Call to service asynchronous URB completions in a polling fashion. + * + * Reaped URBs will be finished by calling the completion callback, + * thus there is no return code or input or anything from this function + * except for potential state changes elsewhere. + * + * @returns VINF_SUCCESS if no URBs are pending upon return. + * @returns VERR_TIMEOUT if one or more URBs are still in flight upon returning. + * @returns Other VBox status code. + * + * @param pInterface Pointer to this struct. + * @param pDevice Pointer to a USB device. + * @param cMillies Number of milliseconds to poll for completion. + */ + DECLR3CALLBACKMEMBER(void, pfnReapAsyncUrbs,(PVUSBIROOTHUBCONNECTOR pInterface, PVUSBIDEVICE pDevice, RTMSINTERVAL cMillies)); + + /** + * Cancels and completes - with CRC failure - all URBs queued on an endpoint. + * This is done in response to guest URB cancellation. + * + * @returns VBox status code. + * @param pInterface Pointer to this struct. + * @param pUrb Pointer to a previously submitted URB. + */ + DECLR3CALLBACKMEMBER(int, pfnCancelUrbsEp,(PVUSBIROOTHUBCONNECTOR pInterface, PVUSBURB pUrb)); + + /** + * Cancels and completes - with CRC failure - all in-flight async URBs. + * This is typically done before saving a state. + * + * @param pInterface Pointer to this struct. + */ + DECLR3CALLBACKMEMBER(void, pfnCancelAllUrbs,(PVUSBIROOTHUBCONNECTOR pInterface)); + + /** + * Cancels and completes - with CRC failure - all URBs queued on an endpoint. + * This is done in response to a guest endpoint/pipe abort. + * + * @returns VBox status code. + * @param pInterface Pointer to this struct. + * @param pDevice Pointer to a USB device. + * @param EndPt Endpoint number. + * @param enmDir Endpoint direction. + */ + DECLR3CALLBACKMEMBER(int, pfnAbortEp,(PVUSBIROOTHUBCONNECTOR pInterface, PVUSBIDEVICE pDevice, int EndPt, VUSBDIRECTION enmDir)); + + /** + * Attach the device to the root hub. + * The device must not be attached to any hub for this call to succeed. + * + * @returns VBox status code. + * @param pInterface Pointer to this struct. + * @param pDevice Pointer to the device (interface) to attach. + */ + DECLR3CALLBACKMEMBER(int, pfnAttachDevice,(PVUSBIROOTHUBCONNECTOR pInterface, PVUSBIDEVICE pDevice)); + + /** + * Detach the device from the root hub. + * The device must already be attached for this call to succeed. + * + * @returns VBox status code. + * @param pInterface Pointer to this struct. + * @param pDevice Pointer to the device (interface) to detach. + */ + DECLR3CALLBACKMEMBER(int, pfnDetachDevice,(PVUSBIROOTHUBCONNECTOR pInterface, PVUSBIDEVICE pDevice)); + + /** + * Sets periodic frame processing. + * + * @returns VBox status code. + * @param pInterface Pointer to this struct. + * @param uFrameRate The target frame rate in Hertz, 0 disables periodic frame processing. + * The real frame rate might be lower if there is no activity for a certain period or + * higher if there is a need for catching up with where the guest expects the device to be. + */ + DECLR3CALLBACKMEMBER(int, pfnSetPeriodicFrameProcessing, (PVUSBIROOTHUBCONNECTOR pInterface, uint32_t uFrameRate)); + + /** + * Returns the current frame rate for the periodic frame processing. + * + * @returns Frame rate for periodic frame processing. + * @retval 0 if disabled. + * @param pInterface Pointer to this struct. + */ + DECLR3CALLBACKMEMBER(uint32_t, pfnGetPeriodicFrameRate, (PVUSBIROOTHUBCONNECTOR pInterface)); + + /** + * Updates the internally stored isochronous scheduling frame for a given + * endpoint and returns the delta between the current and previous frame. + * + * @returns Delta between currently and previously scheduled frame. + * @retval 0 if no previous frame was set. + * @param pInterface Pointer to this struct. + * @param pDevice Pointer to a USB device. + * @param EndPt Endpoint number. + * @param enmDir Endpoint direction. + * @param uNewFrameID The frame ID of a new transfer. + * @param uBits The number of significant bits in frame ID. + */ + DECLR3CALLBACKMEMBER(uint32_t, pfnUpdateIsocFrameDelta, (PVUSBIROOTHUBCONNECTOR pInterface, PVUSBIDEVICE pDevice, + int EndPt, VUSBDIRECTION enmDir, uint16_t uNewFrameID, uint8_t uBits)); + + /** Alignment dummy. */ + RTR3PTR Alignment; + +} VUSBIROOTHUBCONNECTOR; +AssertCompileSizeAlignment(VUSBIROOTHUBCONNECTOR, 8); +/** VUSBIROOTHUBCONNECTOR interface ID. */ +# define VUSBIROOTHUBCONNECTOR_IID "662d7822-b9c6-43b5-88b6-5d59f0106e46" + + +# ifdef IN_RING3 +/** @copydoc VUSBIROOTHUBCONNECTOR::pfnSetUrbParams */ +DECLINLINE(int) VUSBIRhSetUrbParams(PVUSBIROOTHUBCONNECTOR pInterface, size_t cbHci, size_t cbHciTd) +{ + return pInterface->pfnSetUrbParams(pInterface, cbHci, cbHciTd); +} + +/** @copydoc VUSBIROOTHUBCONNECTOR::pfnNewUrb */ +DECLINLINE(PVUSBURB) VUSBIRhNewUrb(PVUSBIROOTHUBCONNECTOR pInterface, uint8_t DstAddress, PVUSBIDEVICE pDev, + VUSBXFERTYPE enmType, VUSBDIRECTION enmDir, uint32_t cbData, uint32_t cTds, const char *pszTag) +{ + return pInterface->pfnNewUrb(pInterface, DstAddress, pDev, enmType, enmDir, cbData, cTds, pszTag); +} + +/** @copydoc VUSBIROOTHUBCONNECTOR::pfnFreeUrb */ +DECLINLINE(int) VUSBIRhFreeUrb(PVUSBIROOTHUBCONNECTOR pInterface, PVUSBURB pUrb) +{ + return pInterface->pfnFreeUrb(pInterface, pUrb); +} + +/** @copydoc VUSBIROOTHUBCONNECTOR::pfnSubmitUrb */ +DECLINLINE(int) VUSBIRhSubmitUrb(PVUSBIROOTHUBCONNECTOR pInterface, PVUSBURB pUrb, struct PDMLED *pLed) +{ + return pInterface->pfnSubmitUrb(pInterface, pUrb, pLed); +} + +/** @copydoc VUSBIROOTHUBCONNECTOR::pfnReapAsyncUrbs */ +DECLINLINE(void) VUSBIRhReapAsyncUrbs(PVUSBIROOTHUBCONNECTOR pInterface, PVUSBIDEVICE pDevice, RTMSINTERVAL cMillies) +{ + pInterface->pfnReapAsyncUrbs(pInterface, pDevice, cMillies); +} + +/** @copydoc VUSBIROOTHUBCONNECTOR::pfnCancelAllUrbs */ +DECLINLINE(void) VUSBIRhCancelAllUrbs(PVUSBIROOTHUBCONNECTOR pInterface) +{ + pInterface->pfnCancelAllUrbs(pInterface); +} + +/** @copydoc VUSBIROOTHUBCONNECTOR::pfnAttachDevice */ +DECLINLINE(int) VUSBIRhAttachDevice(PVUSBIROOTHUBCONNECTOR pInterface, PVUSBIDEVICE pDevice) +{ + return pInterface->pfnAttachDevice(pInterface, pDevice); +} + +/** @copydoc VUSBIROOTHUBCONNECTOR::pfnDetachDevice */ +DECLINLINE(int) VUSBIRhDetachDevice(PVUSBIROOTHUBCONNECTOR pInterface, PVUSBIDEVICE pDevice) +{ + return pInterface->pfnDetachDevice(pInterface, pDevice); +} + +/** @copydoc VUSBIROOTHUBCONNECTOR::pfnSetPeriodicFrameProcessing */ +DECLINLINE(int) VUSBIRhSetPeriodicFrameProcessing(PVUSBIROOTHUBCONNECTOR pInterface, uint32_t uFrameRate) +{ + return pInterface->pfnSetPeriodicFrameProcessing(pInterface, uFrameRate); +} + +/** @copydoc VUSBIROOTHUBCONNECTOR::pfnGetPeriodicFrameRate */ +DECLINLINE(uint32_t) VUSBIRhGetPeriodicFrameRate(PVUSBIROOTHUBCONNECTOR pInterface) +{ + return pInterface->pfnGetPeriodicFrameRate(pInterface); +} +# endif /* IN_RING3 */ + +#endif /* ! RDESKTOP */ + + +/** + * VUSB device reset completion callback function. + * This is called by the reset thread when the reset has been completed. + * + * @param pDev Pointer to the virtual USB device core. + * @param rc The VBox status code of the reset operation. + * @param pvUser User specific argument. + * + * @thread The reset thread or EMT. + */ +typedef DECLCALLBACK(void) FNVUSBRESETDONE(PVUSBIDEVICE pDevice, int rc, void *pvUser); +/** Pointer to a device reset completion callback function (FNUSBRESETDONE). */ +typedef FNVUSBRESETDONE *PFNVUSBRESETDONE; + +/** + * The state of a VUSB Device. + * + * @remark The order of these states is vital. + */ +typedef enum VUSBDEVICESTATE +{ + VUSB_DEVICE_STATE_INVALID = 0, + VUSB_DEVICE_STATE_DETACHED, + VUSB_DEVICE_STATE_ATTACHED, + VUSB_DEVICE_STATE_POWERED, + VUSB_DEVICE_STATE_DEFAULT, + VUSB_DEVICE_STATE_ADDRESS, + VUSB_DEVICE_STATE_CONFIGURED, + VUSB_DEVICE_STATE_SUSPENDED, + /** The device is being reset. Don't mess with it. + * Next states: VUSB_DEVICE_STATE_DEFAULT, VUSB_DEVICE_STATE_DESTROYED + */ + VUSB_DEVICE_STATE_RESET, + /** The device has been destroyed. */ + VUSB_DEVICE_STATE_DESTROYED, + /** The usual 32-bit hack. */ + VUSB_DEVICE_STATE_32BIT_HACK = 0x7fffffff +} VUSBDEVICESTATE; + +#ifndef RDESKTOP + +/** + * USB Device Interface (up). + * No interface pair. + */ +typedef struct VUSBIDEVICE +{ + /** + * Resets the device. + * + * Since a device reset shall take at least 10ms from the guest point of view, + * it must be performed asynchronously. We create a thread which performs this + * operation and ensures it will take at least 10ms. + * + * At times - like init - a synchronous reset is required, this can be done + * by passing NULL for pfnDone. + * + * -- internal stuff, move it -- + * While the device is being reset it is in the VUSB_DEVICE_STATE_RESET state. + * On completion it will be in the VUSB_DEVICE_STATE_DEFAULT state if successful, + * or in the VUSB_DEVICE_STATE_DETACHED state if the rest failed. + * -- internal stuff, move it -- + * + * @returns VBox status code. + * @param pInterface Pointer to this structure. + * @param fResetOnLinux Set if we can permit a real reset and a potential logical + * device reconnect on linux hosts. + * @param pfnDone Pointer to the completion routine. If NULL a synchronous + * reset is performed not respecting the 10ms. + * @param pvUser User argument to the completion routine. + * @param pVM The cross context VM structure. Required if pfnDone + * is not NULL. + */ + DECLR3CALLBACKMEMBER(int, pfnReset,(PVUSBIDEVICE pInterface, bool fResetOnLinux, + PFNVUSBRESETDONE pfnDone, void *pvUser, PVM pVM)); + + /** + * Powers on the device. + * + * @returns VBox status code. + * @param pInterface Pointer to the device interface structure. + */ + DECLR3CALLBACKMEMBER(int, pfnPowerOn,(PVUSBIDEVICE pInterface)); + + /** + * Powers off the device. + * + * @returns VBox status code. + * @param pInterface Pointer to the device interface structure. + */ + DECLR3CALLBACKMEMBER(int, pfnPowerOff,(PVUSBIDEVICE pInterface)); + + /** + * Get the state of the device. + * + * @returns Device state. + * @param pInterface Pointer to the device interface structure. + */ + DECLR3CALLBACKMEMBER(VUSBDEVICESTATE, pfnGetState,(PVUSBIDEVICE pInterface)); + + /** + * Returns whether the device implements the saved state handlers + * and doesn't need to get detached. + * + * @returns true if the device supports saving the state, false otherwise. + * @param pInterface Pointer to the device interface structure. + */ + DECLR3CALLBACKMEMBER(bool, pfnIsSavedStateSupported,(PVUSBIDEVICE pInterface)); + + /** + * Get the speed the device is operating at. + * + * @returns Device state. + * @param pInterface Pointer to the device interface structure. + */ + DECLR3CALLBACKMEMBER(VUSBSPEED, pfnGetSpeed,(PVUSBIDEVICE pInterface)); + +} VUSBIDEVICE; +/** VUSBIDEVICE interface ID. */ +# define VUSBIDEVICE_IID "af576b38-e8ca-4db7-810a-2596d8d57ca0" + + +# ifdef IN_RING3 +/** + * Resets the device. + * + * Since a device reset shall take at least 10ms from the guest point of view, + * it must be performed asynchronously. We create a thread which performs this + * operation and ensures it will take at least 10ms. + * + * At times - like init - a synchronous reset is required, this can be done + * by passing NULL for pfnDone. + * + * -- internal stuff, move it -- + * While the device is being reset it is in the VUSB_DEVICE_STATE_RESET state. + * On completion it will be in the VUSB_DEVICE_STATE_DEFAULT state if successful, + * or in the VUSB_DEVICE_STATE_DETACHED state if the rest failed. + * -- internal stuff, move it -- + * + * @returns VBox status code. + * @param pInterface Pointer to the device interface structure. + * @param fResetOnLinux Set if we can permit a real reset and a potential logical + * device reconnect on linux hosts. + * @param pfnDone Pointer to the completion routine. If NULL a + * synchronous reset is performed not respecting the + * 10ms. + * @param pvUser User argument to the completion routine. + * @param pVM The cross context VM structure. Required if pfnDone + * is not NULL. + * + * NULL is acceptable Required if callback in EMT is desired, NULL is otherwise + * acceptable. + */ +DECLINLINE(int) VUSBIDevReset(PVUSBIDEVICE pInterface, bool fResetOnLinux, PFNVUSBRESETDONE pfnDone, void *pvUser, PVM pVM) +{ + return pInterface->pfnReset(pInterface, fResetOnLinux, pfnDone, pvUser, pVM); +} + +/** + * Powers on the device. + * + * @returns VBox status code. + * @param pInterface Pointer to the device interface structure. + */ +DECLINLINE(int) VUSBIDevPowerOn(PVUSBIDEVICE pInterface) +{ + return pInterface->pfnPowerOn(pInterface); +} + +/** + * Powers off the device. + * + * @returns VBox status code. + * @param pInterface Pointer to the device interface structure. + */ +DECLINLINE(int) VUSBIDevPowerOff(PVUSBIDEVICE pInterface) +{ + return pInterface->pfnPowerOff(pInterface); +} + +/** + * Get the state of the device. + * + * @returns Device state. + * @param pInterface Pointer to the device interface structure. + */ +DECLINLINE(VUSBDEVICESTATE) VUSBIDevGetState(PVUSBIDEVICE pInterface) +{ + return pInterface->pfnGetState(pInterface); +} + +/** + * @copydoc VUSBIDEVICE::pfnIsSavedStateSupported + */ +DECLINLINE(bool) VUSBIDevIsSavedStateSupported(PVUSBIDEVICE pInterface) +{ + return pInterface->pfnIsSavedStateSupported(pInterface); +} +# endif /* IN_RING3 */ + +#endif /* ! RDESKTOP */ + +/** @name URB + * @{ */ + +/** + * VUSB Transfer status codes. + */ +typedef enum VUSBSTATUS +{ + /** Transer was ok. */ + VUSBSTATUS_OK = 0, + /** Transfer stalled, endpoint halted. */ + VUSBSTATUS_STALL, + /** Device not responding. */ + VUSBSTATUS_DNR, + /** CRC error. */ + VUSBSTATUS_CRC, + /** Data overrun error. */ + VUSBSTATUS_DATA_UNDERRUN, + /** Data overrun error. */ + VUSBSTATUS_DATA_OVERRUN, + /** The isochronous buffer hasn't been touched. */ + VUSBSTATUS_NOT_ACCESSED, + /** Canceled/undone URB (VUSB internal). */ + VUSBSTATUS_UNDO, + /** Canceled URB. */ + VUSBSTATUS_CANCELED, + /** Invalid status. */ + VUSBSTATUS_INVALID = 0x7f +} VUSBSTATUS; + + +/** + * The URB states + */ +typedef enum VUSBURBSTATE +{ + /** The usual invalid state. */ + VUSBURBSTATE_INVALID = 0, + /** The URB is free, i.e. not in use. + * Next state: ALLOCATED */ + VUSBURBSTATE_FREE, + /** The URB is allocated, i.e. being prepared for submission. + * Next state: FREE, IN_FLIGHT */ + VUSBURBSTATE_ALLOCATED, + /** The URB is in flight. + * Next state: REAPED, CANCELLED */ + VUSBURBSTATE_IN_FLIGHT, + /** The URB has been reaped and is being completed. + * Next state: FREE */ + VUSBURBSTATE_REAPED, + /** The URB has been cancelled and is awaiting reaping and immediate freeing. + * Next state: FREE */ + VUSBURBSTATE_CANCELLED, + /** The end of the valid states (exclusive). */ + VUSBURBSTATE_END, + /** The usual 32-bit blow up. */ + VUSBURBSTATE_32BIT_HACK = 0x7fffffff +} VUSBURBSTATE; + + +/** + * Information about a isochronous packet. + */ +typedef struct VUSBURBISOCPKT +{ + /** The size of the packet. + * IN: The packet size. I.e. the number of bytes to the next packet or end of buffer. + * OUT: The actual size transferred. */ + uint32_t cb; + /** The offset of the packet. (Relative to VUSBURB::abData[0].) + * OUT: This can be changed by the USB device if it does some kind of buffer squeezing. */ + uint32_t off; + /** The status of the transfer. + * IN: VUSBSTATUS_INVALID + * OUT: VUSBSTATUS_INVALID if nothing was done, otherwise the correct status. */ + VUSBSTATUS enmStatus; +} VUSBURBISOCPKT; +/** Pointer to a isochronous packet. */ +typedef VUSBURBISOCPKT *PVUSBURBISOCPTK; +/** Pointer to a const isochronous packet. */ +typedef const VUSBURBISOCPKT *PCVUSBURBISOCPKT; + +/** Private controller emulation specific data for the associated USB request descriptor. */ +typedef struct VUSBURBHCIINT *PVUSBURBHCI; +/** Private controller emulation specific TD data. */ +typedef struct VUSBURBHCITDINT *PVUSBURBHCITD; +/** Private VUSB/roothub related state for the associated URB. */ +typedef struct VUSBURBVUSBINT *PVUSBURBVUSB; + +/** + * Asynchronous USB request descriptor + */ +typedef struct VUSBURB +{ + /** URB magic value. */ + uint32_t u32Magic; + /** The USR state. */ + VUSBURBSTATE enmState; + /** Flag whether the URB is about to be completed, + * either by the I/O thread or the cancellation worker. + */ + volatile bool fCompleting; + /** URB description, can be null. intended for logging. */ + char *pszDesc; + +#ifdef RDESKTOP + /** The next URB in rdesktop-vrdp's linked list */ + PVUSBURB pNext; + /** The previous URB in rdesktop-vrdp's linked list */ + PVUSBURB pPrev; + /** The vrdp handle for the URB */ + uint32_t handle; + /** Pointer used to find the usb proxy device */ + struct VUSBDEV *pDev; +#endif + + /** The VUSB stack private data. */ + PVUSBURBVUSB pVUsb; + /** Private host controller data associated with this URB. */ + PVUSBURBHCI pHci; + /** Pointer to the host controller transfer descriptor array. */ + PVUSBURBHCITD paTds; + + /** The device data. */ + struct VUSBURBDEV + { + /** Pointer to private device specific data. */ + void *pvPrivate; + /** Used by the device when linking the URB in some list of its own. */ + PVUSBURB pNext; + } Dev; + + /** The device address. + * This is set at allocation time. */ + uint8_t DstAddress; + + /** The endpoint. + * IN: Must be set before submitting the URB. + * @remark This does not have the high bit (direction) set! */ + uint8_t EndPt; + /** The transfer type. + * IN: Set at allocation time. */ + VUSBXFERTYPE enmType; + /** The transfer direction. + * IN: Set at allocation time. */ + VUSBDIRECTION enmDir; + /** Indicates whether it is OK to receive/send less data than requested. + * IN: Must be initialized before submitting the URB. */ + bool fShortNotOk; + /** The transfer status. + * OUT: This is set when reaping the URB. */ + VUSBSTATUS enmStatus; + + /** The relative starting frame for isochronous transfers. + * Zero indicates "transfer ASAP". + * This is ignored when enmType isn't VUSBXFERTYPE_ISOC. */ + uint16_t uStartFrameDelta; + /** Flag indicating whether the start frame delta is relative + * to the previous transfer (false) or now (true). + * This is ignored when enmType isn't VUSBXFERTYPE_ISOC. */ + bool fStartRelToNow; + /** The number of isochronous packets describe in aIsocPkts. + * This is ignored when enmType isn't VUSBXFERTYPE_ISOC. */ + uint8_t cIsocPkts; + /** The iso packets within abData. + * This is ignored when enmType isn't VUSBXFERTYPE_ISOC. */ + VUSBURBISOCPKT aIsocPkts[8]; + + /** The message length. + * IN: The amount of data to send / receive - set at allocation time. + * OUT: The amount of data sent / received. */ + uint32_t cbData; + /** The message data. + * IN: On host to device transfers, the data to send. + * OUT: On device to host transfers, the data to received. + * This array has actually a size of VUsb.cbDataAllocated, not 8KB! */ + uint8_t abData[8*_1K]; +} VUSBURB; + +/** The magic value of a valid VUSBURB. (Murakami Haruki) */ +#define VUSBURB_MAGIC UINT32_C(0x19490112) + +/** @} */ + + +/** @} */ + +RT_C_DECLS_END + +#endif /* !VBOX_INCLUDED_vusb_h */ |