From f1713a25598e82e9d00a8e4c40044f590cc2c958 Mon Sep 17 00:00:00 2001
From: Vegard Storheil Eriksen <zyp@jvnv.net>
Date: Wed, 22 Aug 2012 20:15:11 +0200
Subject: Add descriptor classes.

---
 usb/descriptor.h | 138 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 138 insertions(+)
 create mode 100644 usb/descriptor.h

diff --git a/usb/descriptor.h b/usb/descriptor.h
new file mode 100644
index 0000000..f806984
--- /dev/null
+++ b/usb/descriptor.h
@@ -0,0 +1,138 @@
+#ifndef DESCRIPTOR_H
+#define DESCRIPTOR_H
+
+#include <stdint.h>
+
+struct Device_desc {
+	enum {
+		SIZE = 18,
+	};
+	
+	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;
+};
+
+
+struct Configuration_desc {
+	enum {
+		SIZE = 9,
+	};
+	
+	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));
+
+struct Interface_desc {
+	enum {
+		SIZE = 9,
+	};
+	
+	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));
+
+struct Endpoint_desc {
+	enum {
+		SIZE = 7,
+	};
+	
+	uint8_t bLength;
+	uint8_t bDescriptorType;
+	uint8_t bEndpointAddress;
+	uint8_t bmAttributes;
+	uint16_t wMaxPacketSize;
+	uint8_t bInterval;
+} __attribute__((packed));
+
+struct CDC_Header_desc {
+	enum {
+		SIZE = 5,
+	};
+	
+	uint8_t bLength;
+	uint8_t bDescriptorType;
+	uint8_t bDescriptorSubType;
+	uint16_t bcdCDC;
+} __attribute__((packed));
+
+struct CDC_Call_Management_desc {
+	enum {
+		SIZE = 5,
+	};
+	
+	uint8_t bLength;
+	uint8_t bDescriptorType;
+	uint8_t bDescriptorSubType;
+	uint8_t bmCapabilities;
+	uint8_t bDataInterface;
+} __attribute__((packed));
+
+struct CDC_ACM_desc {
+	enum {
+		SIZE = 4,
+	};
+	
+	uint8_t bLength;
+	uint8_t bDescriptorType;
+	uint8_t bDescriptorSubType;
+	uint8_t bmCapabilities;
+} __attribute__((packed));
+
+struct CDC_Union_desc {
+	enum {
+		SIZE = 5,
+	};
+	
+	uint8_t bLength;
+	uint8_t bDescriptorType;
+	uint8_t bDescriptorSubType;
+	uint8_t bControlInterface;
+	uint8_t bSubordinateInterface0;
+} __attribute__((packed));
+
+template <typename A, typename B>
+struct X {
+	enum {
+		SIZE = A::SIZE + B::SIZE,
+	};
+	
+	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...)};
+}
+
+#endif
-- 
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