usb.h

mtk 6225平台的usb程序！ 对想了解mtk平台usb的朋友会有帮助！

/***********************************************
	standard command structure
************************************************/

/* usb standard command structure */
typedef struct 
{
	kal_uint8	bmRequestType;
	kal_uint8	bRequest;
	kal_uint16	wValue;
	kal_uint16	wIndex;
	kal_uint16	wLength;
} Usb_Command;



/***********************************************
	standard descriptor structure
************************************************/

/* standard device descriptor */
typedef struct 
{
	kal_uint8    bLength;
	kal_uint8    bDescriptorType;
	kal_uint16   bcdUSB;
	kal_uint8    bDeviceClass;
	kal_uint8    bDeviceSubClass;
	kal_uint8    bDeviceProtocol;
	kal_uint8    bMaxPacketSize0;
	kal_uint16   idVendor;
	kal_uint16   idProduct;
	kal_uint16   bcdDevice;
	kal_uint8    iManufacturer;
	kal_uint8    iProduct;
	kal_uint8    iSerialNumber;
	kal_uint8    bNumConfigurations;
} Usb_Dev_Dscr;

/* standard configuration descriptor */
typedef struct 
{
	kal_uint8    bLength;
	kal_uint8    bDescriptorType;
	kal_uint16   wTotalLength;
	kal_uint8    bNumInterfaces;
	kal_uint8    bConfigurationValue;
	kal_uint8    iConfiguration;
	kal_uint8    bmAttributes;
	kal_uint8    bMaxPower;
} Usb_Cfg_Dscr;

/* standard IAD descriptor */
typedef struct 
{
	kal_uint8    bLength;
	kal_uint8    bDescriptorType;
	kal_uint8    bFirstInterface;
	kal_uint8    bInterfaceCount;
	kal_uint8    bFunctionClass;
	kal_uint8    bFunctionSubClass;
	kal_uint8    bFunctionProtocol;
	kal_uint8    iFunction;
} Usb_IAD_Dscr;

/* standard interface descriptor */
typedef struct 
{
	kal_uint8    bLength;
	kal_uint8    bDescriptorType;
	kal_uint8    bInterfaceNumber;
	kal_uint8    bAlternateSetting;
	kal_uint8    bNumEndpoints;
	kal_uint8    bInterfaceClass;
	kal_uint8    bInterfaceSubClass;
	kal_uint8    bInterfaceProtocol;
	kal_uint8    iInterface;
} Usb_If_Dscr;

/* standard endpoint descriptor */
typedef struct 
{
	kal_uint8    bLength;
	kal_uint8    bDescriptorType;
	kal_uint8    bEndpointAddress;
	kal_uint8    bmAttributes;
	kal_uint8    wMaxPacketSize[2];	
	kal_uint8    bInterval;
} Usb_Ep_Dscr;

/* standard string descriptor */
typedef struct 
{
	kal_uint8    bLength;
	kal_uint8    bDescriptorType;
	kal_uint16   wData[1];
}Usb_String_Dscr;

/* standard string descriptor */
typedef struct 
{
	kal_uint8    bLength;
	kal_uint8    bDescriptorType;
	kal_uint8    bAttribute;
}Usb_Otg_Dscr;

/***********************************************
	implement enum and structure 
************************************************/

/* device states */
typedef enum
{
	DEVSTATE_DEFAULT = 0,
	DEVSTATE_SET_ADDRESS,
	DEVSTATE_ADDRESS,
	DEVSTATE_CONFIG
} USB_DEVICE_STATE;


/* Endpoint 0 state */
typedef enum 
{
	USB_EP0_IDLE=0,
	USB_EP0_RX,
	USB_EP0_TX,
	USB_EP0_RX_STATUS
} USB_EP0_STATE;


/* EP0 status */
typedef struct 
{
	kal_uint8	byFAddr;	/* new function address */
	kal_int32	nBytesLeft;	/* number of bytes left to send in TX mode */
	void		*pData;		/* pointer to data to transmit/receive */
	kal_int32	nBytesRecv;	/* number of bytes received in RX mode */
} Usb_Ep0_Status;

/* Bulk IN endpoint status */
typedef struct 
{
	kal_uint8	byEP;		/* endpoint number */
	void		*pData;		/* pointer to data buffer */
	kal_int32	nBytesLeft;	/* number of bytes left to send */
} Usb_EpBIn_Status;

/* Bulk OUT endpoint status */
typedef struct 
{
	kal_uint8	byEP;		/* endpoint number */
	void		*pData;		/* pointer to data buffer */
	kal_int32	nBuffLen;	/* length of data buffer */
	kal_int32	nBytesRecv;	/* number of bytes received */
} Usb_EpBOut_Status;


/* interface create function pointer */
typedef void (*usb_create_if_func_ptr)(void *);
/* EP0 rx interrupt handler */
typedef void (*usb_ep0_rx_ptr)(void *);
/* class specific command interrupt handler */
typedef void (*usb_class_specific_handler_ptr)(Usb_Ep0_Status *, Usb_Command*);
/* endpoint interrupt handler */
typedef void (*usb_ep_handler_ptr)(void);
/* EP0 command  interrupt handler */
typedef void (*usb_ep0_cmd_ptr)(Usb_Command *pcmd);

/* endpoint information, including endpoint status */
typedef struct 
{
	union 
	{
		Usb_Ep_Dscr			stdep;			/* ep descriptor */
		kal_uint8			classep[USB_MAX_CLASS_EPDESC_LENGTH];
	}epdesc;
	kal_uint16				epdscr_size;		/* descriptor length */
	usb_ep_handler_ptr		ep_reset;		/* ep reset handler */
	union 
	{
		Usb_EpBIn_Status	epin_status;
		Usb_EpBOut_Status	epout_status;
	}ep_status;						/* ep status */
} Usb_Ep_Info;


/* interface information, including endpoint information and interface information*/
//extern struct Usb_Cdc_If_Dscr;
typedef struct 
{
	kal_char			*interface_name_ptr;	/* interface name */
	usb_class_specific_handler_ptr	if_class_specific_hdlr;	/* interface specific handler, handle ep0 class specific request */
	kal_uint16			ifdscr_size;		/* descriptor length */
	union 
	{
		Usb_If_Dscr		stdif;
		kal_uint8		classif[USB_MAX_IFDSC_LENGTH];
	}ifdscr;	
	Usb_Ep_Info			*ep_info[USB_MAX_EP_PER_IF];/* endpoint attach to the interface info */	
} Usb_Interface_Info;

/* configuration information */
typedef struct 
{	
	kal_char			*cfg_name_ptr;		/* config name */
	Usb_Cfg_Dscr		stdcfg;			/* config descriptor */
}Usb_Config_Info;

typedef struct
{
	kal_bool			b_enable;
	kal_uint8			cmd;
	usb_ep0_cmd_ptr	ep0_cmd_hdlr;
}Usb_EPo_Cmd_Hdler;

/* device information, used for usb level */
typedef struct 
{
	Usb_Dev_Dscr		devdscr;
	/* Usb_Config_Info		cfg_info[USB_MAX_CONFIG]; */
	/*  the configuration only one for saving memory  */
	Usb_Config_Info		cfg_info;
	Usb_Interface_Info	if_info[USB_MAX_INTERFACE];
	Usb_Ep_Info			ep_bulkin_info[USB_MAX_EP_BULK_IN];
	Usb_Ep_Info			ep_bulkout_info[USB_MAX_EP_BULK_OUT];
	Usb_Ep_Info			ep_intr_info[USB_MAX_EP_INTR];
	Usb_String_Dscr		*resource_string[USB_MAX_STRING];
        Usb_IAD_Dscr	iad_desc[USB_MAX_IAD];
#ifdef __OTG_ENABLE__
	Usb_Otg_Dscr		otgdscr;
#endif
	
	kal_uint8 			*conf;				/*just for descriptor transfer*/
	Usb_Command			cmd;				/*USB_COMMAND*/
	USB_DEVICE_TYPE 	device_type;
	USB_DEVICE_STATE	nDevState;			/*DEVSTATE_CONFIG,DEVSTATE_ADDRESS,DEVSTATE_DEFAULT*/		
	kal_bool			remoteWk;
	kal_bool			self_powered;
	kal_bool  		usb_comport_boot;		/* a flag to check if usb boot as com port */
	kal_bool			is_configured_now;		/* a flag to check that after reset and before set configuration, the all DMA call back messages will be ignored */
	kal_uint8			config_num;
	kal_uint8			interface_num;
	USB_EP0_STATE 		ep0_state;
   	Usb_Ep0_Status    	ep0info;
   	usb_ep0_rx_ptr  	ep0_rx_handler;
   	Usb_EPo_Cmd_Hdler	ep0_class_cmd_handler; /* class specific ep0 cmd */
	kal_bool 			usb_config_result; 	/* configure may be fail */

	/* used for resource management*/
   	kal_uint8			resource_ep_bulkin_number;  		
   	kal_uint8			resource_ep_bulkout_number;		
   	kal_uint8			resource_ep_intr_number;
   	kal_uint8			resource_interface_number;
   	kal_uint8			resource_string_number;   
	kal_uint8			resource_iad_number;   	
   	
#ifdef __USB_MULTI_CHARGE_CURRENT__
	#if ( defined(MT6305) || defined(MT6318) )
       /* add for multi-configurations*/
	kal_uint8			multi_configuration_value[USB_MAX_CONFIG];
	kal_uint8			multi_Max_Power[USB_MAX_CONFIG];
	#endif
#endif
   	/* serial string unique for each phone*/
   	kal_uint16			serial_string[USB_SERIAL_STRING_LEN]; 

	/* customizable variables*/
	const USB_DEVICE_PARAM	*device_param;
} Usb_Device;


/***********************************************
	function and global variable
************************************************/
extern Usb_Device gUsbDevice;

extern void USB_Init_Device_Status(void);
extern void USB_Release_Device_Status(void);
extern void USB_Register_EP0_RxHdlr(usb_ep0_rx_ptr handler);
extern void USB_Register_EP0_Class_CmdHdlr(kal_uint8 cmd, usb_ep0_cmd_ptr handler);
extern void USB_Init(USB_DEVICE_TYPE type, kal_bool b_enable);
extern void USB_Release(void);

extern void USB_Generate_EP0Data(Usb_Ep0_Status*pep0state, Usb_Command*pcmd, void *data, kal_int32 len);
#ifdef  __USB_MULTI_CHARGE_CURRENT__
	#if ( defined(MT6305) || defined(MT6318) )
	extern const kal_uint16  USB_CHARGE_CURRENT[];
	extern const kal_uint8  USB_GetChargeCurrentTableSize(void);
	#endif
#endif

#endif /* USB_H */