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📄 usb.h

📁 avr与PC机之间的通信
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#include <avr/pgmspace.h>
typedef unsigned char   UCHAR;
typedef unsigned char   uchar;
typedef unsigned char   BYTE;
typedef unsigned short  USHORT;
typedef unsigned long   ULONG;
typedef unsigned char   BOOL;
//this part from epphal.h
#define D12_DATA  0x02
#define D12_COMMAND 0x03
#define Set_Bit(val, bitn)    (val |=(1<<(bitn))) 
#define Clr_Bit(val, bitn)     (val&=~(1<<(bitn)))  
#define D12_CS  0
#define D12_WR  1 
#define D12_RD  2
#define D12_ALE  3
#define DISABLE  cli()
#define ENABLE   sei()

//this part from D12CI.h
#define D12_NOLAZYCLOCK			0x02
#define D12_CLOCKRUNNING        0x04
#define D12_INTERRUPTMODE		0x08
#define D12_SOFTCONNECT			0x10
#define D12_ENDP_NONISO			0x00
#define D12_ENDP_ISOOUT			0x40
#define D12_ENDP_ISOIN			0x80
#define D12_ENDP_ISOIO			0xC0

#define D12_CLOCK_12M			0x03
#define D12_CLOCK_4M			0x0b
#define D12_SETTOONE            0x40
#define D12_SOFONLY				0x80

#define D12_DMASINGLE			0x00
#define D12_BURST_4				0x01
#define D12_BURST_8				0x02
#define D12_BURST_16			0x03
#define D12_DMAENABLE           0x04
#define D12_DMA_INTOKEN			0x08
#define D12_AUTOLOAD			0x10
#define D12_NORMALPLUSSOF		0x20
#define D12_ENDP4INTENABLE		0x40
#define D12_ENDP5INTENABLE		0x80	// bug fixed in V2.1

#define D12_INT_ENDP0OUT		0x01
#define D12_INT_ENDP0IN			0x02
#define D12_INT_ENDP1OUT		0x04
#define D12_INT_ENDP1IN			0x08
#define D12_INT_ENDP2OUT		0x10
#define D12_INT_ENDP2IN			0x20
#define D12_INT_BUSRESET		0x40
#define D12_INT_SUSPENDCHANGE	0x80
#define D12_INT_EOT				0x0100

#define D12_SETUPPACKET			0x20

#define D12_BUFFER0FULL			0x20
#define D12_BUFFER1FULL			0x40

#define D12_FULLEMPTY			0x01
#define D12_STALL				0x02

//this part from mainloop.h


#define MAX_ENDPOINTS      (unsigned char)0x3

#define EP0_TX_FIFO_SIZE   16
#define EP0_RX_FIFO_SIZE   16
#define EP0_PACKET_SIZE    16

#define EP1_TX_FIFO_SIZE   4
#define EP1_RX_FIFO_SIZE   4
#define EP1_PACKET_SIZE    4
#define EP2_PACKET_SIZE    64

#define USB_IDLE           0
#define USB_TRANSMIT       1
#define USB_RECEIVE        2

#define USB_CLASS_CODE_TEST_CLASS_DEVICE                    0xdc
#define USB_SUBCLASS_CODE_TEST_CLASS_D12                    0xA0
#define USB_PROTOCOL_CODE_TEST_CLASS_D12                    0xB0
#define USB_RECIPIENT            (unsigned char)0x1F
#define USB_RECIPIENT_DEVICE     (unsigned char)0x00
#define USB_RECIPIENT_INTERFACE  (unsigned char)0x01
#define USB_RECIPIENT_ENDPOINT   (unsigned char)0x02

#define USB_REQUEST_TYPE_MASK    (unsigned char)0x60
#define USB_STANDARD_REQUEST     (unsigned char)0x00
#define USB_REQUEST_MASK         (unsigned char)0x0F
#define DEVICE_ADDRESS_MASK      0x7F
#define FALSE   0
#define TRUE    (!FALSE)

#define MAX_CONTROLDATA_SIZE	8
typedef struct _device_request
{
	unsigned char bmRequestType;
	unsigned char bRequest;
	unsigned short wValue;
	unsigned short wIndex;
	unsigned short wLength;
} DEVICE_REQUEST;
typedef union _epp_flags
{
	struct _flags
	{
		unsigned char bus_reset           	: 1;
		unsigned char suspend             	: 1;
		unsigned char setup_packet  	  	: 1;
		unsigned char remote_wakeup		: 1;
		unsigned char in_isr		      	: 1;
		unsigned char control_state		: 2;

		unsigned char configuration		: 1;
		unsigned char ep1_rxdone			: 1;
		unsigned char main_rxdone			: 1;
		unsigned char setup_dma			: 2; // V2.3
	} bits;
	unsigned short value;
} EPPFLAGS;

typedef struct _control_xfer
{
	DEVICE_REQUEST DeviceRequest;
	unsigned short wLength;
	unsigned short wCount;
	unsigned char * pData;
	unsigned char dataBuffer[MAX_CONTROLDATA_SIZE];
} CONTROL_XFER;

//this part from usb.h
#define MAXIMUM_USB_STRING_LENGTH 255

// values for the bits returned by the USB GET_STATUS command
#define USB_GETSTATUS_SELF_POWERED                0x01
#define USB_GETSTATUS_REMOTE_WAKEUP_ENABLED       0x02


#define USB_DEVICE_DESCRIPTOR_TYPE                0x01
#define USB_CONFIGURATION_DESCRIPTOR_TYPE         0x02
#define USB_STRING_DESCRIPTOR_TYPE                0x03
#define USB_INTERFACE_DESCRIPTOR_TYPE             0x04
#define USB_ENDPOINT_DESCRIPTOR_TYPE              0x05
#define USB_POWER_DESCRIPTOR_TYPE                 0x06

#define USB_DESCRIPTOR_MAKE_TYPE_AND_INDEX(d, i) ((USHORT)((USHORT)d<<8 | i))

//
// Values for bmAttributes field of an
// endpoint descriptor
//

#define USB_ENDPOINT_TYPE_MASK                    0x03

#define USB_ENDPOINT_TYPE_CONTROL                 0x00
#define USB_ENDPOINT_TYPE_ISOCHRONOUS             0x01
#define USB_ENDPOINT_TYPE_BULK                    0x02
#define USB_ENDPOINT_TYPE_INTERRUPT               0x03


//
// definitions for bits in the bmAttributes field of a 
// configuration descriptor.
//
#define USB_CONFIG_POWERED_MASK                   0xc0

#define USB_CONFIG_BUS_POWERED                    0x80
#define USB_CONFIG_SELF_POWERED                   0x40
#define USB_CONFIG_REMOTE_WAKEUP                  0x20

//
// Endpoint direction bit, stored in address
//

#define USB_ENDPOINT_DIRECTION_MASK               0x80

// test direction bit in the bEndpointAddress field of
// an endpoint descriptor.
#define USB_ENDPOINT_DIRECTION_OUT(addr)          (!((addr) & USB_ENDPOINT_DIRECTION_MASK))
#define USB_ENDPOINT_DIRECTION_IN(addr)           ((addr) & USB_ENDPOINT_DIRECTION_MASK)

//
// USB defined request codes
// see chapter 9 of the USB 1.0 specifcation for
// more information.
//

// These are the correct values based on the USB 1.0
// specification

#define USB_REQUEST_GET_STATUS                    0x00
#define USB_REQUEST_CLEAR_FEATURE                 0x01

#define USB_REQUEST_SET_FEATURE                   0x03

#define USB_REQUEST_SET_ADDRESS                   0x05
#define USB_REQUEST_GET_DESCRIPTOR                0x06
#define USB_REQUEST_SET_DESCRIPTOR                0x07
#define USB_REQUEST_GET_CONFIGURATION             0x08
#define USB_REQUEST_SET_CONFIGURATION             0x09
#define USB_REQUEST_GET_INTERFACE                 0x0A
#define USB_REQUEST_SET_INTERFACE                 0x0B
#define USB_REQUEST_SYNC_FRAME                    0x0C


//
// defined USB device classes
//


#define USB_DEVICE_CLASS_RESERVED           0x00
#define USB_DEVICE_CLASS_AUDIO              0x01
#define USB_DEVICE_CLASS_COMMUNICATIONS     0x02
#define USB_DEVICE_CLASS_HUMAN_INTERFACE    0x03
#define USB_DEVICE_CLASS_MONITOR            0x04
#define USB_DEVICE_CLASS_PHYSICAL_INTERFACE 0x05
#define USB_DEVICE_CLASS_POWER              0x06
#define USB_DEVICE_CLASS_PRINTER            0x07
#define USB_DEVICE_CLASS_STORAGE            0x08
#define USB_DEVICE_CLASS_HUB                0x09
#define USB_DEVICE_CLASS_VENDOR_SPECIFIC    0xFF

//
// USB defined Feature selectors
//

#define USB_FEATURE_ENDPOINT_STALL          0x0000
#define USB_FEATURE_REMOTE_WAKEUP           0x0001
#define USB_FEATURE_POWER_D0                0x0002
#define USB_FEATURE_POWER_D1                0x0003
#define USB_FEATURE_POWER_D2                0x0004
#define USB_FEATURE_POWER_D3                0x0005

typedef struct _USB_DEVICE_DESCRIPTOR {
    uchar bLength;
    uchar bDescriptorType;
    USHORT bcdUSB;
    uchar bDeviceClass;
    uchar bDeviceSubClass;
    uchar bDeviceProtocol;
    uchar bMaxPacketSize0;
    USHORT idVendor;
    USHORT idProduct;
    USHORT bcdDevice;
    uchar iManufacturer;
    uchar iProduct;
    uchar iSerialNumber;
    uchar bNumConfigurations;
} USB_DEVICE_DESCRIPTOR, *PUSB_DEVICE_DESCRIPTOR;

typedef struct _USB_ENDPOINT_DESCRIPTOR {
    uchar bLength;
    uchar bDescriptorType;
    uchar bEndpointAddress;
    uchar bmAttributes;
    USHORT wMaxPacketSize;
    uchar bInterval;
} USB_ENDPOINT_DESCRIPTOR, *PUSB_ENDPOINT_DESCRIPTOR;

//
// values for bmAttributes Field in
// USB_CONFIGURATION_DESCRIPTOR
//

#define BUS_POWERED                           0x80
#define SELF_POWERED                          0x40
#define REMOTE_WAKEUP                         0x20

typedef struct _USB_CONFIGURATION_DESCRIPTOR {
    uchar bLength;
    uchar bDescriptorType;
    USHORT wTotalLength;
    uchar bNumInterfaces;
    uchar bConfigurationValue;
    uchar iConfiguration;
    uchar bmAttributes;
    uchar MaxPower;
} USB_CONFIGURATION_DESCRIPTOR, *PUSB_CONFIGURATION_DESCRIPTOR;

typedef struct _USB_INTERFACE_DESCRIPTOR {
    uchar bLength;
    uchar bDescriptorType;
    uchar bInterfaceNumber;
    uchar bAlternateSetting;
    uchar bNumEndpoints;
    uchar bInterfaceClass;
    uchar bInterfaceSubClass;
    uchar bInterfaceProtocol;
    uchar iInterface;
} USB_INTERFACE_DESCRIPTOR, *PUSB_INTERFACE_DESCRIPTOR;

typedef struct _USB_STRING_DESCRIPTOR {
    const prog_uchar bLength;
    const prog_uchar bDescriptorType;
    const prog_uchar bString[1];
} USB_STRING_DESCRIPTOR, *PUSB_STRING_DESCRIPTOR;

//this part for chap_9
#define NUM_ENDPOINTS	4
typedef struct _CON_INT_ENDP_DESCRIPTOR_STRUCT
{
 USB_CONFIGURATION_DESCRIPTOR configuration_descriptor;
 USB_INTERFACE_DESCRIPTOR  interface_descritor;
 USB_ENDPOINT_DESCRIPTOR  EP1_TXDescr;
 USB_ENDPOINT_DESCRIPTOR  EP1_RXDescr;
 USB_ENDPOINT_DESCRIPTOR  EP2_TXDescr;
 USB_ENDPOINT_DESCRIPTOR  EP2_RXDescr;
}CON_INT_ENDP_DESCRIPTOR_STRUCT;

#define CONFIG_DESCRIPTOR_LENGTH    sizeof(USB_CONFIGURATION_DESCRIPTOR) \
									+ sizeof(USB_INTERFACE_DESCRIPTOR) \
									+ (NUM_ENDPOINTS * sizeof(USB_ENDPOINT_DESCRIPTOR))
#define MSB(x)    (((x) >> 8) & 0xFF)
#define LSB(x)    ((x) & 0xFF)





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