 /*
 * @file hv_drv_UsbCoreCh9.h
 * @brief This file holds USB constants and structures that are needed for
 *        USB device APIs.  
 *        These are used by the USB device model, which is
 *        defined in chapter 9 of the USB 2.0 specification and in the
 *        Wireless USB 1.0 (spread around).
 *
 * @author HiView SoC Software Team
 * @version 1.0.0
 * @date 2022-06-15
 */


#ifndef __HV_DRV_USB_CORE_CH9_H
#define __HV_DRV_USB_CORE_CH9_H

#include "hv_drv_UsbPortingUsbTypes.h"

#define cpu_to_le64(x) x
#define le64_to_cpu(x) x
#define cpu_to_le32(x) x
#define le32_to_cpu(x) x
#define cpu_to_le16(x) x
#define le16_to_cpu(x) x

/*-------------------------------------------------------------------------*/

/* CONTROL REQUEST SUPPORT */

/*
 * USB directions
 *
 * This bit flag is used in endpoint descriptors' bEndpointAddress field.
 * It's also one of three fields in control requests bRequestType.
 */
#define USB_DIR_OUT         0       /* to device */
#define USB_DIR_IN          0x80        /* to host */

/*
 * USB types, the second of three bRequestType fields
 */
#define USB_TYPE_MASK           (0x03 << 5)
#define USB_TYPE_STANDARD       (0x00 << 5)
#define USB_TYPE_CLASS          (0x01 << 5)
#define USB_TYPE_VENDOR         (0x02 << 5)
#define USB_TYPE_RESERVED       (0x03 << 5)

/*
 * USB recipients, the third of three bRequestType fields
 */
#define USB_RECIP_MASK          0x1f
#define USB_RECIP_DEVICE        0x00
#define USB_RECIP_INTERFACE     0x01
#define USB_RECIP_ENDPOINT      0x02
#define USB_RECIP_OTHER         0x03
/* From Wireless USB 1.0 */
#define USB_RECIP_PORT          0x04
#define USB_RECIP_RPIPE         0x05

/*
 * Standard requests, for the bRequest field of a SETUP packet.
 *
 * These are qualified by the bRequestType field, so that for example
 * TYPE_CLASS or TYPE_VENDOR specific feature flags could be retrieved
 * by a GET_STATUS request.
 */
#define USB_REQ_GET_STATUS          0x00
#define USB_REQ_CLEAR_FEATURE       0x01
#define USB_REQ_SET_FEATURE         0x03
#define USB_REQ_SET_ADDRESS         0x05
#define USB_REQ_GET_DESCRIPTOR      0x06
#define USB_REQ_SET_DESCRIPTOR      0x07
#define USB_REQ_GET_CONFIGURATION   0x08
#define USB_REQ_SET_CONFIGURATION   0x09
#define USB_REQ_GET_INTERFACE       0x0A
#define USB_REQ_SET_INTERFACE       0x0B
#define USB_REQ_SYNCH_FRAME         0x0C

#define USB_REQ_SET_ENCRYPTION      0x0D    /* Wireless USB */
#define USB_REQ_GET_ENCRYPTION      0x0E
#define USB_REQ_RPIPE_ABORT         0x0E
#define USB_REQ_SET_HANDSHAKE       0x0F
#define USB_REQ_RPIPE_RESET         0x0F
#define USB_REQ_GET_HANDSHAKE       0x10
#define USB_REQ_SET_CONNECTION      0x11
#define USB_REQ_SET_SECURITY_DATA   0x12
#define USB_REQ_GET_SECURITY_DATA   0x13
#define USB_REQ_SET_WUSB_DATA       0x14
#define USB_REQ_LOOPBACK_DATA_WRITE 0x15
#define USB_REQ_LOOPBACK_DATA_READ  0x16
#define USB_REQ_SET_INTERFACE_DS    0x17

/* The Link Power Management (LPM) ECN defines USB_REQ_TEST_AND_SET command,
 * used by hubs to put ports into a new L1 suspend state, except that it
 * forgot to define its number ...
 */

/*
 * USB feature flags are written using USB_REQ_{CLEAR,SET}_FEATURE, and
 * are read as a bit array returned by USB_REQ_GET_STATUS.  (So there
 * are at most sixteen features of each type.)  Hubs may also support a
 * new USB_REQ_TEST_AND_SET_FEATURE to put ports into L1 suspend.
 */
#define USB_DEVICE_SELF_POWERED         0   /* (read only) */
#define USB_DEVICE_REMOTE_WAKEUP        1   /* dev may initiate wakeup */
#define USB_DEVICE_TEST_MODE            2   /* (wired high speed only) */
#define USB_DEVICE_BATTERY              2   /* (wireless) */
#define USB_DEVICE_B_HNP_ENABLE         3   /* (otg) dev may initiate HNP */
#define USB_DEVICE_WUSB_DEVICE          3   /* (wireless)*/
#define USB_DEVICE_A_HNP_SUPPORT        4   /* (otg) RH port supports HNP */
#define USB_DEVICE_A_ALT_HNP_SUPPORT    5   /* (otg) other RH port does */
#define USB_DEVICE_DEBUG_MODE           6   /* (special devices only) */

#define USB_ENDPOINT_HALT               0   /* IN/OUT will STALL */


/**
 * struct usb_ctrlrequest - SETUP data for a USB device control request
 * @bRequestType: matches the USB bmRequestType field
 * @bRequest: matches the USB bRequest field
 * @wValue: matches the USB wValue field (le16 byte order)
 * @wIndex: matches the USB wIndex field (le16 byte order)
 * @wLength: matches the USB wLength field (le16 byte order)
 *
 * This structure is used to send control requests to a USB device.  It matches
 * the different fields of the USB 2.0 Spec section 9.3, table 9-2.  See the
 * USB spec for a fuller description of the different fields, and what they are
 * used for.
 *
 * Note that the driver for any interface can issue control requests.
 * For most devices, interfaces don't coordinate with each other, so
 * such requests may be made at any time.
 */
#pragma pack(1)
struct usb_ctrlrequest {
    u8 bRequestType;
    u8 bRequest;
    u16 wValue;
    u16 wIndex;
    u16 wLength;
} ;
#pragma pack()

/*-------------------------------------------------------------------------*/

/*
 * STANDARD DESCRIPTORS ... as returned by GET_DESCRIPTOR, or
 * (rarely) accepted by SET_DESCRIPTOR.
 *
 * Note that all multi-byte values here are encoded in little endian
 * byte order "on the wire".  Within the kernel and when exposed
 * through the Linux-USB APIs, they are not converted to cpu byte
 * order; it is the responsibility of the client code to do this.
 * The single exception is when device and configuration descriptors (but
 * not other descriptors) are read from usbfs (i.e. /proc/bus/usb/BBB/DDD);
 * in this case the fields are converted to host endianness by the kernel.
 */

/*
 * Descriptor types ... USB 2.0 spec table 9.5
 */
#define USB_DT_DEVICE                   0x01
#define USB_DT_CONFIG                   0x02
#define USB_DT_STRING                   0x03
#define USB_DT_INTERFACE                0x04
#define USB_DT_ENDPOINT                 0x05
#define USB_DT_DEVICE_QUALIFIER         0x06
#define USB_DT_OTHER_SPEED_CONFIG       0x07
#define USB_DT_INTERFACE_POWER          0x08
/* these are from a minor usb 2.0 revision (ECN) */
#define USB_DT_OTG                      0x09
#define USB_DT_DEBUG                    0x0a
#define USB_DT_INTERFACE_ASSOCIATION    0x0b
/* these are from the Wireless USB spec */
#define USB_DT_SECURITY                 0x0c
#define USB_DT_KEY                      0x0d
#define USB_DT_ENCRYPTION_TYPE          0x0e
#define USB_DT_BOS                      0x0f
#define USB_DT_DEVICE_CAPABILITY        0x10
#define USB_DT_WIRELESS_ENDPOINT_COMP   0x11
#define USB_DT_WIRE_ADAPTER             0x21
#define USB_DT_RPIPE                    0x22
#define USB_DT_CS_RADIO_CONTROL         0x23
/* From the T10 UAS specification */
#define USB_DT_PIPE_USAGE               0x24
/* From the USB 3.0 spec */
#define USB_DT_SS_ENDPOINT_COMP         0x30

/* Conventional codes for class-specific descriptors.  The convention is
 * defined in the USB "Common Class" Spec (3.11).  Individual class specs
 * are authoritative for their usage, not the "common class" writeup.
 */
#define USB_DT_CS_DEVICE        (USB_TYPE_CLASS | USB_DT_DEVICE)
#define USB_DT_CS_CONFIG        (USB_TYPE_CLASS | USB_DT_CONFIG)
#define USB_DT_CS_STRING        (USB_TYPE_CLASS | USB_DT_STRING)
#define USB_DT_CS_INTERFACE     (USB_TYPE_CLASS | USB_DT_INTERFACE)
#define USB_DT_CS_ENDPOINT      (USB_TYPE_CLASS | USB_DT_ENDPOINT)

/* All standard descriptors have these 2 fields at the beginning */
#pragma pack(1)
struct usb_descriptor_header {
    u8  bLength;
    u8  bDescriptorType;
} ;
#pragma pack()


/*-------------------------------------------------------------------------*/

/* USB_DT_DEVICE: Device descriptor */
#pragma pack(1)
struct usb_device_descriptor {
    u8  bLength;
    u8  bDescriptorType;

    u16 bcdUSB;
    u8  bDeviceClass;
    u8  bDeviceSubClass;
    u8  bDeviceProtocol;
    u8  bMaxPacketSize0;
    u16 idVendor;
    u16 idProduct;
    u16 bcdDevice;
    u8  iManufacturer;
    u8  iProduct;
    u8  iSerialNumber;
    u8  bNumConfigurations;
} ;
#pragma pack()

#define USB_DT_DEVICE_SIZE      18


/*
 * Device and/or Interface Class codes
 * as found in bDeviceClass or bInterfaceClass
 * and defined by www.usb.org documents
 */
#define USB_CLASS_PER_INTERFACE         0x00   /* for DeviceClass */
#define USB_CLASS_AUDIO                 0x01
#define USB_CLASS_COMM                  0x02
#define USB_CLASS_HID                   0x03
#define USB_CLASS_PHYSICAL              0x05
#define USB_CLASS_STILL_IMAGE           0x06
#define USB_CLASS_PRINTER               0x07
#define USB_CLASS_MASS_STORAGE          0x08
#define USB_CLASS_HUB                   0x09
#define USB_CLASS_CDC_DATA              0x0a
#define USB_CLASS_CSCID                 0x0b    /* chip+ smart card */
#define USB_CLASS_CONTENT_SEC           0x0d    /* content security */
#define USB_CLASS_VIDEO                 0x0e
#define USB_CLASS_WIRELESS_CONTROLLER   0xe0
#define USB_CLASS_MISC                  0xef
#define USB_CLASS_APP_SPEC              0xfe
#define USB_CLASS_VENDOR_SPEC           0xff

#define USB_SUBCLASS_VENDOR_SPEC        0xff

/*-------------------------------------------------------------------------*/

/* USB_DT_CONFIG: Configuration descriptor information.
 *
 * USB_DT_OTHER_SPEED_CONFIG is the same descriptor, except that the
 * descriptor type is different.  Highspeed-capable devices can look
 * different depending on what speed they're currently running.  Only
 * devices with a USB_DT_DEVICE_QUALIFIER have any OTHER_SPEED_CONFIG
 * descriptors.
 */
#pragma pack(1)
struct usb_config_descriptor {
    u8  bLength;
    u8  bDescriptorType;

    u16 wTotalLength;
    u8  bNumInterfaces;
    u8  bConfigurationValue;
    u8  iConfiguration;
    u8  bmAttributes;
    u8  bMaxPower;
} ;
#pragma pack()

#define USB_DT_CONFIG_SIZE      9

/* from config descriptor bmAttributes */
#define USB_CONFIG_ATT_ONE          (1 << 7)    /* must be set */
#define USB_CONFIG_ATT_SELFPOWER    (1 << 6)    /* self powered */
#define USB_CONFIG_ATT_WAKEUP       (1 << 5)    /* can wakeup */
#define USB_CONFIG_ATT_BATTERY      (1 << 4)    /* battery powered */

/*-------------------------------------------------------------------------*/

/* USB_DT_STRING: String descriptor */
#pragma pack(1)
struct usb_string_descriptor {
    u8  bLength;
    u8  bDescriptorType;

    u16 wData[1];        /* UTF-16LE encoded */
} ;
#pragma pack()

/* note that "string" zero is special, it holds language codes that
 * the device supports, not Unicode characters.
 */

/*-------------------------------------------------------------------------*/

/* USB_DT_INTERFACE: Interface descriptor */
#pragma pack(1)
struct usb_interface_descriptor {
    u8  bLength;
    u8  bDescriptorType;

    u8  bInterfaceNumber;
    u8  bAlternateSetting;
    u8  bNumEndpoints;
    u8  bInterfaceClass;
    u8  bInterfaceSubClass;
    u8  bInterfaceProtocol;
    u8  iInterface;
} ;
#pragma pack()

#define USB_DT_INTERFACE_SIZE       9

/*-------------------------------------------------------------------------*/

/* USB_DT_ENDPOINT: Endpoint descriptor */
#pragma pack(1)
struct usb_endpoint_descriptor {
    u8  bLength;
    u8  bDescriptorType;

    u8  bEndpointAddress;
    u8  bmAttributes;
    u16 wMaxPacketSize;
    u8  bInterval;

    /* NOTE:  these two are _only_ in audio endpoints. */
    /* use USB_DT_ENDPOINT*_SIZE in bLength, not sizeof. */
    u8  bRefresh;
    u8  bSynchAddress;
} ;
#pragma pack()

#define USB_DT_ENDPOINT_SIZE        7
#define USB_DT_ENDPOINT_AUDIO_SIZE  9   /* Audio extension */


/*
 * Endpoints
 */
#define USB_ENDPOINT_NUMBER_MASK    0x0f    /* in bEndpointAddress */
#define USB_ENDPOINT_DIR_MASK       0x80

#define USB_ENDPOINT_SYNCTYPE       0x0c
#define USB_ENDPOINT_SYNC_NONE      (0 << 2)
#define USB_ENDPOINT_SYNC_ASYNC     (1 << 2)
#define USB_ENDPOINT_SYNC_ADAPTIVE  (2 << 2)
#define USB_ENDPOINT_SYNC_SYNC      (3 << 2)

#define USB_ENDPOINT_XFERTYPE_MASK  0x03    /* in bmAttributes */
#define USB_ENDPOINT_XFER_CONTROL   0
#define USB_ENDPOINT_XFER_ISOC      1
#define USB_ENDPOINT_XFER_BULK      2
#define USB_ENDPOINT_XFER_INT       3
#define USB_ENDPOINT_MAX_ADJUSTABLE 0x80

/*-------------------------------------------------------------------------*/

/**
 * usb_endpoint_num - get the endpoint's number
 * @epd: endpoint to be checked
 *
 * Returns @epd's number: 0 to 15.
 */
INLINE int usb_endpoint_num(const struct usb_endpoint_descriptor *epd) {
    return epd->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
}

/**
 * usb_endpoint_type - get the endpoint's transfer type
 * @epd: endpoint to be checked
 *
 * Returns one of USB_ENDPOINT_XFER_{CONTROL, ISOC, BULK, INT} according
 * to @epd's transfer type.
 */
INLINE int usb_endpoint_type(const struct usb_endpoint_descriptor *epd) {
    return epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK;
}

/**
 * usb_endpoint_dir_in - check if the endpoint has IN direction
 * @epd: endpoint to be checked
 *
 * Returns true if the endpoint is of type IN, otherwise it returns false.
 */
INLINE int usb_endpoint_dir_in(const struct usb_endpoint_descriptor *epd) {
    return ((epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN);
}

/**
 * usb_endpoint_dir_out - check if the endpoint has OUT direction
 * @epd: endpoint to be checked
 *
 * Returns true if the endpoint is of type OUT, otherwise it returns false.
 */
INLINE int usb_endpoint_dir_out(
    const struct usb_endpoint_descriptor *epd) {
    return ((epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT);
}

/**
 * usb_endpoint_xfer_bulk - check if the endpoint has bulk transfer type
 * @epd: endpoint to be checked
 *
 * Returns true if the endpoint is of type bulk, otherwise it returns false.
 */
INLINE int usb_endpoint_xfer_bulk(
    const struct usb_endpoint_descriptor *epd) {
    return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
            USB_ENDPOINT_XFER_BULK);
}

/**
 * usb_endpoint_xfer_control - check if the endpoint has control transfer type
 * @epd: endpoint to be checked
 *
 * Returns true if the endpoint is of type control, otherwise it returns false.
 */
INLINE int usb_endpoint_xfer_control(
    const struct usb_endpoint_descriptor *epd) {
    return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
            USB_ENDPOINT_XFER_CONTROL);
}

/**
 * usb_endpoint_xfer_int - check if the endpoint has interrupt transfer type
 * @epd: endpoint to be checked
 *
 * Returns true if the endpoint is of type interrupt, otherwise it returns
 * false.
 */
INLINE int usb_endpoint_xfer_int(
    const struct usb_endpoint_descriptor *epd) {
    return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
            USB_ENDPOINT_XFER_INT);
}

/**
 * usb_endpoint_xfer_isoc - check if the endpoint has isochronous transfer type
 * @epd: endpoint to be checked
 *
 * Returns true if the endpoint is of type isochronous, otherwise it returns
 * false.
 */
INLINE int usb_endpoint_xfer_isoc(
    const struct usb_endpoint_descriptor *epd) {
    return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
            USB_ENDPOINT_XFER_ISOC);
}

/**
 * usb_endpoint_is_bulk_in - check if the endpoint is bulk IN
 * @epd: endpoint to be checked
 *
 * Returns true if the endpoint has bulk transfer type and IN direction,
 * otherwise it returns false.
 */
INLINE int usb_endpoint_is_bulk_in(
    const struct usb_endpoint_descriptor *epd) {
    return usb_endpoint_xfer_bulk(epd) && usb_endpoint_dir_in(epd);
}

/**
 * usb_endpoint_is_bulk_out - check if the endpoint is bulk OUT
 * @epd: endpoint to be checked
 *
 * Returns true if the endpoint has bulk transfer type and OUT direction,
 * otherwise it returns false.
 */
INLINE int usb_endpoint_is_bulk_out(
    const struct usb_endpoint_descriptor *epd) {
    return usb_endpoint_xfer_bulk(epd) && usb_endpoint_dir_out(epd);
}

/**
 * usb_endpoint_is_int_in - check if the endpoint is interrupt IN
 * @epd: endpoint to be checked
 *
 * Returns true if the endpoint has interrupt transfer type and IN direction,
 * otherwise it returns false.
 */
INLINE int usb_endpoint_is_int_in(
    const struct usb_endpoint_descriptor *epd) {
    return usb_endpoint_xfer_int(epd) && usb_endpoint_dir_in(epd);
}

/**
 * usb_endpoint_is_int_out - check if the endpoint is interrupt OUT
 * @epd: endpoint to be checked
 *
 * Returns true if the endpoint has interrupt transfer type and OUT direction,
 * otherwise it returns false.
 */
INLINE int usb_endpoint_is_int_out(
    const struct usb_endpoint_descriptor *epd) {
    return usb_endpoint_xfer_int(epd) && usb_endpoint_dir_out(epd);
}

/**
 * usb_endpoint_is_isoc_in - check if the endpoint is isochronous IN
 * @epd: endpoint to be checked
 *
 * Returns true if the endpoint has isochronous transfer type and IN direction,
 * otherwise it returns false.
 */
INLINE int usb_endpoint_is_isoc_in(
    const struct usb_endpoint_descriptor *epd) {
    return usb_endpoint_xfer_isoc(epd) && usb_endpoint_dir_in(epd);
}

/**
 * usb_endpoint_is_isoc_out - check if the endpoint is isochronous OUT
 * @epd: endpoint to be checked
 *
 * Returns true if the endpoint has isochronous transfer type and OUT direction,
 * otherwise it returns false.
 */
INLINE int usb_endpoint_is_isoc_out(
    const struct usb_endpoint_descriptor *epd) {
    return usb_endpoint_xfer_isoc(epd) && usb_endpoint_dir_out(epd);
}

/**
 * usb_endpoint_maxp - get endpoint's max packet size
 * @epd: endpoint to be checked
 *
 * Returns @epd's max packet
 */
INLINE int usb_endpoint_maxp(const struct usb_endpoint_descriptor *epd) {
    return le16_to_cpu(epd->wMaxPacketSize);
}

/*-------------------------------------------------------------------------*/

/* USB_DT_SS_ENDPOINT_COMP: SuperSpeed Endpoint Companion descriptor */
#pragma pack(1)
struct usb_ss_ep_comp_descriptor {
    u8  bLength;
    u8  bDescriptorType;

    u8  bMaxBurst;
    u8  bmAttributes;
    u16 wBytesPerInterval;
} ;
#pragma pack()

#define USB_DT_SS_EP_COMP_SIZE      6
/* Bits 4:0 of bmAttributes if this is a bulk endpoint */
#define USB_SS_MAX_STREAMS(p)       (1 << (p & 0x1f))

/*-------------------------------------------------------------------------*/

/* USB_DT_DEVICE_QUALIFIER: Device Qualifier descriptor */
#pragma pack(1)
struct usb_qualifier_descriptor {
    u8  bLength;
    u8  bDescriptorType;

    u16 bcdUSB;
    u8  bDeviceClass;
    u8  bDeviceSubClass;
    u8  bDeviceProtocol;
    u8  bMaxPacketSize0;
    u8  bNumConfigurations;
    u8  bRESERVED;
} ;
#pragma pack()


/*-------------------------------------------------------------------------*/

/* USB_DT_OTG (from OTG 1.0a supplement) */
#pragma pack(1)
struct usb_otg_descriptor {
    u8  bLength;
    u8  bDescriptorType;

    u8  bmAttributes;    /* support for HNP, SRP, etc */
} ;
#pragma pack()

/* from usb_otg_descriptor.bmAttributes */
#define USB_OTG_SRP     (1 << 0)
#define USB_OTG_HNP     (1 << 1)    /* swap host/device roles */

/*-------------------------------------------------------------------------*/

/* USB_DT_DEBUG:  for special highspeed devices, replacing serial console */
#pragma pack(1)
struct usb_debug_descriptor {
    u8  bLength;
    u8  bDescriptorType;

    /* bulk endpoints with 8 byte maxpacket */
    u8  bDebugInEndpoint;
    u8  bDebugOutEndpoint;
};
#pragma pack()

/*-------------------------------------------------------------------------*/

/* USB_DT_INTERFACE_ASSOCIATION: groups interfaces */
#pragma pack(1)
struct usb_interface_assoc_descriptor {
    u8  bLength;
    u8  bDescriptorType;

    u8  bFirstInterface;
    u8  bInterfaceCount;
    u8  bFunctionClass;
    u8  bFunctionSubClass;
    u8  bFunctionProtocol;
    u8  iFunction;
} ;
#pragma pack()


/*-------------------------------------------------------------------------*/

/* USB_DT_SECURITY:  group of wireless security descriptors, including
 * encryption types available for setting up a CC/association.
 */
#pragma pack(1)
struct usb_security_descriptor {
    u8  bLength;
    u8  bDescriptorType;

    u16 wTotalLength;
    u8  bNumEncryptionTypes;
};
#pragma pack()

/*-------------------------------------------------------------------------*/

/* USB_DT_KEY:  used with {GET,SET}_SECURITY_DATA; only public keys
 * may be retrieved.
 */
#pragma pack(1)
struct usb_key_descriptor {
    u8  bLength;
    u8  bDescriptorType;

    u8  tTKID[3];
    u8  bReserved;
    u8  bKeyData[0];
};
#pragma pack()

/*-------------------------------------------------------------------------*/

/* USB_DT_ENCRYPTION_TYPE:  bundled in DT_SECURITY groups */
#pragma pack(1)
struct usb_encryption_descriptor {
    u8  bLength;
    u8  bDescriptorType;

    u8  bEncryptionType;
#define USB_ENC_TYPE_UNSECURE       0
#define USB_ENC_TYPE_WIRED          1   /* non-wireless mode */
#define USB_ENC_TYPE_CCM_1          2   /* aes128/cbc session */
#define USB_ENC_TYPE_RSA_1          3   /* rsa3072/sha1 auth */
    u8  bEncryptionValue;               /* use in SET_ENCRYPTION */
    u8  bAuthKeyIndex;
};
#pragma pack()


/*-------------------------------------------------------------------------*/

/* USB_DT_BOS:  group of device-level capabilities */
#pragma pack(1)
struct usb_bos_descriptor {
    u8  bLength;
    u8  bDescriptorType;

    u16 wTotalLength;
    u8  bNumDeviceCaps;
};
#pragma pack()

/*-------------------------------------------------------------------------*/

/* USB_DT_DEVICE_CAPABILITY:  grouped with BOS */
#pragma pack(1)
struct usb_dev_cap_header {
    u8  bLength;
    u8  bDescriptorType;
    u8  bDevCapabilityType;
};
#pragma pack()

#define USB_CAP_TYPE_WIRELESS_USB   1

#pragma pack(1)
struct usb_wireless_cap_descriptor {    /* Ultra Wide Band */
    u8  bLength;
    u8  bDescriptorType;
    u8  bDevCapabilityType;

    u8  bmAttributes;
#define USB_WIRELESS_P2P_DRD            (1 << 1)
#define USB_WIRELESS_BEACON_MASK        (3 << 2)
#define USB_WIRELESS_BEACON_SELF        (1 << 2)
#define USB_WIRELESS_BEACON_DIRECTED    (2 << 2)
#define USB_WIRELESS_BEACON_NONE        (3 << 2)
    u16 wPHYRates;   /* bit rates, Mbps */
#define USB_WIRELESS_PHY_53         (1 << 0)    /* always set */
#define USB_WIRELESS_PHY_80         (1 << 1)
#define USB_WIRELESS_PHY_107        (1 << 2)    /* always set */
#define USB_WIRELESS_PHY_160        (1 << 3)
#define USB_WIRELESS_PHY_200        (1 << 4)    /* always set */
#define USB_WIRELESS_PHY_320        (1 << 5)
#define USB_WIRELESS_PHY_400        (1 << 6)
#define USB_WIRELESS_PHY_480        (1 << 7)
    u8  bmTFITXPowerInfo;    /* TFI power levels */
    u8  bmFFITXPowerInfo;    /* FFI power levels */
    u16 bmBandGroup;
    u8  bReserved;
};
#pragma pack()

#define USB_CAP_TYPE_EXT        2

#pragma pack(1)
struct usb_ext_cap_descriptor {     /* Link Power Management */
    u8  bLength;
    u8  bDescriptorType;
    u8  bDevCapabilityType;
    u8  bmAttributes;
#define USB_LPM_SUPPORT         (1 << 1)    /* supports LPM */
};
#pragma pack()

/*-------------------------------------------------------------------------*/

/* USB_DT_WIRELESS_ENDPOINT_COMP:  companion descriptor associated with
 * each endpoint descriptor for a wireless device
 */
#pragma pack(1)
struct usb_wireless_ep_comp_descriptor {
    u8  bLength;
    u8  bDescriptorType;

    u8  bMaxBurst;
    u8  bMaxSequence;
    u16 wMaxStreamDelay;
    u16 wOverTheAirPacketSize;
    u8  bOverTheAirInterval;
    u8  bmCompAttributes;
#define USB_ENDPOINT_SWITCH_MASK    0x03    /* in bmCompAttributes */
#define USB_ENDPOINT_SWITCH_NO      0
#define USB_ENDPOINT_SWITCH_SWITCH  1
#define USB_ENDPOINT_SWITCH_SCALE   2
};
#pragma pack()

/*-------------------------------------------------------------------------*/

/* USB_REQ_SET_HANDSHAKE is a four-way handshake used between a wireless
 * host and a device for connection set up, mutual authentication, and
 * exchanging short lived session keys.  The handshake depends on a CC.
 */
#pragma pack(1)
struct usb_handshake {
    u8 bMessageNumber;
    u8 bStatus;
    u8 tTKID[3];
    u8 bReserved;
    u8 CDID[16];
    u8 nonce[16];
    u8 MIC[8];
};
#pragma pack()
/*-------------------------------------------------------------------------*/

/* USB_REQ_SET_CONNECTION modifies or revokes a connection context (CC).
 * A CC may also be set up using non-wireless secure channels (including
 * wired USB!), and some devices may support CCs with multiple hosts.
 */
#pragma pack(1)
struct usb_connection_context {
    u8 CHID[16];     /* persistent host id */
    u8 CDID[16];     /* device id (unique w/in host context) */
    u8 CK[16];       /* connection key */
};
#pragma pack()

/*-------------------------------------------------------------------------*/

/* Usb 2.0 defines three speeds, here's how Linux identifies them */

enum usb_device_speed {
    USB_SPEED_UNKNOWN = 0,              /* enumerating */
    USB_SPEED_LOW, USB_SPEED_FULL,      /* usb 1.1 */
    USB_SPEED_HIGH,                     /* usb 2.0 */
    USB_SPEED_WIRELESS,                 /* wireless (usb 2.5) */
    USB_SPEED_SUPER,                    /* usb 3.0 */
};

enum usb_device_state {
    /* NOTATTACHED isn't in the USB spec, and this state acts
     * the same as ATTACHED ... but it's clearer this way.
     */
    USB_STATE_NOTATTACHED = 0,

    /* chapter 9 and authentication (wireless) device states */
    USB_STATE_ATTACHED,         // 1
    USB_STATE_POWERED,          /* wired */
    USB_STATE_RECONNECTING,     /* auth */
    USB_STATE_UNAUTHENTICATED,  /* auth */
    USB_STATE_DEFAULT,          /* limited function */
    USB_STATE_ADDRESS,          // 6
    USB_STATE_CONFIGURED,       // 7 /* most functions */

    USB_STATE_SUSPENDED

    /* NOTE:  there are actually four different SUSPENDED
     * states, returning to POWERED, DEFAULT, ADDRESS, or
     * CONFIGURED respectively when SOF tokens flow again.
     * At this level there's no difference between L1 and L2
     * suspend states.  (L2 being original USB 1.1 suspend.)
     */
};

#endif
