Diff: usbdevice.h

Revision:

1:76c47d2ba442

Child:

3:f1a8ec4659f8

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/usbdevice.h	Fri Dec 16 18:17:42 2016 +0000
@@ -0,0 +1,101 @@
+/* usbdevice.h */
+/* Generic USB device */
+/* Copyright (c) Phil Wright 2008 */
+
+#ifndef USBDEVICE_H
+#define USBDEVICE_H
+
+#include "usbdc.h"
+
+/* Endpoint packet sizes */
+#define MAX_PACKET_SIZE_EP0 (64)
+
+/* bmRequestType.dataTransferDirection */
+#define HOST_TO_DEVICE (0)
+#define DEVICE_TO_HOST (1)
+
+/* bmRequestType.Type*/
+#define STANDARD_TYPE  (0)
+#define CLASS_TYPE     (1)
+#define VENDOR_TYPE    (2)
+#define RESERVED_TYPE  (3)
+
+/* bmRequestType.Recipient */
+#define DEVICE_RECIPIENT    (0)
+#define INTERFACE_RECIPIENT (1)
+#define ENDPOINT_RECIPIENT  (2)
+#define OTHER_RECIPIENT     (3)
+
+/* Descriptors */
+#define DESCRIPTOR_TYPE(wValue)  (wValue >> 8)
+#define DESCRIPTOR_INDEX(wValue) (wValue & 0xf)
+
+/* Descriptor type */
+#define DEVICE_DESCRIPTOR        (1)
+#define CONFIGURATION_DESCRIPTOR (2)
+#define STRING_DESCRIPTOR        (3)
+#define INTERFACE_DESCRIPTOR     (4)
+#define ENDPOINT_DESCRIPTOR      (5)
+
+typedef struct
+{
+    struct
+    {
+        unsigned char dataTransferDirection;
+        unsigned char Type;
+        unsigned char Recipient;
+    } bmRequestType;
+    unsigned char  bRequest;
+    unsigned short wValue;
+    unsigned short wIndex;
+    unsigned short wLength;
+} SETUP_PACKET;
+
+typedef struct
+{
+    SETUP_PACKET  setup;
+    unsigned char *ptr;
+    unsigned long remaining;
+    unsigned char direction;
+    bool          zlp;
+} CONTROL_TRANSFER;
+
+typedef enum { ATTACHED, POWERED, DEFAULT, ADDRESS, CONFIGURED } DEVICE_STATE;
+
+typedef struct
+{
+    DEVICE_STATE  state;
+    unsigned char configuration;
+    bool          suspended;
+} USB_DEVICE;
+
+class usbdevice : public usbdc
+{
+public:
+    usbdevice();
+protected:
+    virtual void endpointEventEP0Setup();
+    virtual void endpointEventEP0In();
+    virtual void endpointEventEP0Out();
+    virtual bool requestSetup();
+    virtual bool requestOut();
+    virtual void deviceEventReset();
+    virtual bool requestGetDescriptor();
+            bool requestSetAddress();
+    virtual bool requestSetConfiguration();
+    virtual bool requestGetConfiguration();
+            bool requestGetStatus();
+    virtual bool requestSetInterface();
+    virtual bool requestGetInterface();
+            bool requestSetFeature();
+            bool requestClearFeature();
+    CONTROL_TRANSFER transfer;
+    USB_DEVICE device;
+private:
+    bool controlIn();
+    bool controlOut();
+    bool controlSetup();
+    void decodeSetupPacket(unsigned char *data, SETUP_PACKET *packet);
+};
+
+#endif
\ No newline at end of file