usb_msg.h

/*NB_REVISION*/
 
/*NB_COPYRIGHT*/
 
#ifndef  __USB_MSG_H
#define  __USB_MSG_H
#include <predef.h>
#include <stdint.h>
#include <nettypes.h>
 
enum class eReq_StdDev_t : uint8_t {
    eReq_Get_Stat = 0x00, // Get Device Status
    eReq_Clr_Feat = 0x01, // Clear Device Feature
    eReq_Set_Feat = 0x03, // Set Device Feature
    eReq_Set_Addr = 0x05, // Set Device Address
    eReq_Get_Desc = 0x06, // Get Device Descriptor
    eReq_Set_Desc = 0x07, // Set Device Descriptor
    eReq_Get_Cfg  = 0x08, // Get Configuration Descriptor
    eReq_Set_Cfg  = 0x09, // Set Configuration Descriptor
    eReq_Get_Intf = 0x0A, // Get Interface Descriptor
    eReq_Set_Intf = 0x0B, // Set Interface Descriptor
    eReq_Sync     = 0x0C, // Synch Frame
};
 
enum class eDir_t : uint8_t {
    eDir_OUT = 0x00, // Host-to-Device
    eDir_IN  = 0x80, // Device-to-Host
    eDir_MASK= 0x80,
};
 
enum class eReqType_t : uint8_t {
    eReqType_Std    = (0x00 << 0x5), // Standard request
    eReqType_Class  = (0x01 << 0x5), // Class specific request
    eReqType_Vendor = (0x02 << 0x5), // Vendor specific request
    eReqType_Reserved=(0x03 << 0x5), // Reserved request
    eReqType_MASK   = (0x03 << 0x5)
};
 
enum class eReqTarget_t : uint8_t {
    eReqTarget_Dev   = 0x00, // Device
    eReqTarget_Intf  = 0x01, // Interface
    eReqTarget_EndPt = 0x02, // Endpoint
    eReqTarget_Other = 0x03, // Other
    eReqTarget_MASK  = 0x03,
};
 
inline uint8_t bmReqType(eDir_t dir, eReqType_t type, eReqTarget_t target)
{ return ((uint8_t)dir) | ((uint8_t)type) | ((uint8_t)target); }
 
#define GET_STATUS          0x8000  //Get device status
#define SET_ADDRESS         0x0005  //Set Device Address
#define GET_DESCRIPTOR      0x8006  //Get device descriptor
#define GET_CONFIGURATION   0x8008  //Get device configuration
#define SET_CONFIGURATION   0x0009  //Set configuration
#define GET_INTERFACE       0x800A  //Get device configuration
#define SET_INTERFACE       0x000B  //Set configuration
 
#define EP_GET_STATUS       (0x00)
#define EP_CLR_FEATURE      (0x01)
#define EP_SET_FEATURE      (0x02)
#define EP_SYNCH_FRAME      (0x03)
 
struct usb_setup_pkt_t {
    uint8_t bmRequestType; // Characteristics of request
                           //   D7: Data transfer direction
                           //       0 = Host-to-device
                           //       1 = Device-to-host
                           //   D6...5: Type
                           //       0 = Standard
                           //       1 = Class
                           //       2 = Vendor
                           //       3 = Reserved
                           //   D4...0: Recipient
                           //       0 = Device
                           //       1 = Interface
                           //       2 = Endpoint
                           //       3 = Other
                           //   4...31 = Reserved
    uint8_t bRequest;      // Specific Request Code
    leuint16_t wValue;     // Varies according to Request
    leuint16_t wIndex;     // Varies according to Request, usually an index or offset
    leuint16_t wLength;    // Number of bytes to transfer if there is a Data stage
};
 
 
#endif   /* ----- #ifndef __USB_MSG_H  ----- */