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#ifndef DESCRIPTOR_H
#define DESCRIPTOR_H
#include <stdint.h>
template <typename A, typename B>
struct X {
A a;
B b;
} __attribute__((packed));
template <typename A>
constexpr A pack(A a) {
return a;
}
template <typename A, typename... R>
constexpr auto pack(A a, R... r) -> X<A, decltype(pack(r...))> {
return {a, pack(r...)};
}
struct Device_desc {
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;
} __attribute__((packed));
constexpr Device_desc device_desc(
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
) {
return {
sizeof(Device_desc),
1,
bcdUSB,
bDeviceClass,
bDeviceSubClass,
bDeviceProtocol,
bMaxPacketSize0,
idVendor,
idProduct,
bcdDevice,
iManufacturer,
iProduct,
iSerialNumber,
bNumConfigurations
};
}
struct Configuration_desc {
uint8_t bLength;
uint8_t bDescriptorType;
uint16_t wTotalLength;
uint8_t bNumInterfaces;
uint8_t bConfigurationvalue;
uint8_t iConfiguration;
uint8_t bmAttributes;
uint8_t bMaxPower;
} __attribute__((packed));
template <typename... R>
constexpr auto configuration_desc(
uint8_t bNumInterfaces,
uint8_t bConfigurationvalue,
uint8_t iConfiguration,
uint8_t bmAttributes,
uint8_t bMaxPower,
R... r
) -> decltype(pack(Configuration_desc(), r...)) {
return pack(Configuration_desc {
sizeof(Configuration_desc),
2,
sizeof(pack(Configuration_desc(), r...)),
bNumInterfaces,
bConfigurationvalue,
iConfiguration,
bmAttributes,
bMaxPower
}, r...);
}
struct Interface_desc {
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;
} __attribute__((packed));
template <typename... R>
constexpr auto interface_desc(
uint8_t bInterfaceNumber,
uint8_t bAlternateSetting,
uint8_t bNumEndpoints,
uint8_t bInterfaceClass,
uint8_t bInterfaceSubClass,
uint8_t bInterfaceProtocol,
uint8_t iInterface,
R... r
) -> decltype(pack(Interface_desc(), r...)) {
return pack(Interface_desc {
sizeof(Interface_desc),
4,
bInterfaceNumber,
bAlternateSetting,
bNumEndpoints,
bInterfaceClass,
bInterfaceSubClass,
bInterfaceProtocol,
iInterface
}, r...);
}
struct Endpoint_desc {
uint8_t bLength;
uint8_t bDescriptorType;
uint8_t bEndpointAddress;
uint8_t bmAttributes;
uint16_t wMaxPacketSize;
uint8_t bInterval;
uint8_t bRefresh;
uint8_t bSynchAddress;
} __attribute__((packed));
constexpr Endpoint_desc endpoint_desc(
uint8_t bEndpointAddress,
uint8_t bmAttributes,
uint16_t wMaxPacketSize,
uint8_t bInterval,
uint8_t bRefresh = 0,
uint8_t bSynchAddress = 0
) {
return {
sizeof(Endpoint_desc),
5,
bEndpointAddress,
bmAttributes,
wMaxPacketSize,
bInterval,
bRefresh,
bSynchAddress
};
}
struct CDC_Header_desc {
uint8_t bLength;
uint8_t bDescriptorType;
uint8_t bDescriptorSubType;
uint16_t bcdCDC;
} __attribute__((packed));
constexpr CDC_Header_desc cdc_header_desc(
uint16_t bcdCDC
) {
return {
sizeof(CDC_Header_desc),
0x24,
0x00,
bcdCDC
};
}
struct CDC_Call_Management_desc {
uint8_t bLength;
uint8_t bDescriptorType;
uint8_t bDescriptorSubType;
uint8_t bmCapabilities;
uint8_t bDataInterface;
} __attribute__((packed));
constexpr CDC_Call_Management_desc cdc_call_management_desc(
uint8_t bmCapabilities,
uint8_t bDataInterface
) {
return {
sizeof(CDC_Call_Management_desc),
0x24,
0x01,
bmCapabilities,
bDataInterface
};
}
struct CDC_ACM_desc {
uint8_t bLength;
uint8_t bDescriptorType;
uint8_t bDescriptorSubType;
uint8_t bmCapabilities;
} __attribute__((packed));
constexpr CDC_ACM_desc cdc_acm_desc(
uint8_t bmCapabilities
) {
return {
sizeof(CDC_ACM_desc),
0x24,
0x02,
bmCapabilities
};
}
struct CDC_Union_desc {
uint8_t bLength;
uint8_t bDescriptorType;
uint8_t bDescriptorSubType;
uint8_t bControlInterface;
uint8_t bSubordinateInterface0;
} __attribute__((packed));
constexpr CDC_Union_desc cdc_union_desc(
uint8_t bControlInterface,
uint8_t bSubordinateInterface0
) {
return {
sizeof(CDC_Union_desc),
0x24,
0x06,
bControlInterface,
bSubordinateInterface0
};
}
#endif
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