usb_task.h File Reference

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Defines
#define	Usb_send_event(x)   (g_usb_event |= (1<<x))
#define	Usb_ack_event(x)   (g_usb_event &= ~(1<<x))
#define	Usb_clear_all_event()   (g_usb_event = 0)
#define	Is_usb_event(x)   ((g_usb_event & (1<<x)) ? TRUE : FALSE)
#define	Is_not_usb_event(x)   ((g_usb_event & (1<<x)) ? FALSE: TRUE)
#define	Is_host_emergency_exit()   (Is_usb_event(EVT_HOST_DISCONNECTION) || Is_usb_event(EVT_USB_DEVICE_FUNCTION))
#define	EVT_USB_POWERED   1
#define	EVT_USB_UNPOWERED   2
#define	EVT_USB_DEVICE_FUNCTION   3
#define	EVT_USB_HOST_FUNCTION   4
#define	EVT_USB_SUSPEND   5
#define	EVT_USB_WAKE_UP   6
#define	EVT_USB_RESUME   7
#define	EVT_USB_RESET   8
#define	EVT_HOST_SOF   9
#define	EVT_HOST_HWUP   10
#define	EVT_HOST_DISCONNECTION   11
#define	USB_MODE_UNDEFINED   0x00
#define	USB_MODE_HOST   0x01
#define	USB_MODE_DEVICE   0x02
Functions
void	usb_task_init (void)
	This function initializes the USB proces.
void	usb_task (void)
	Entry point of the USB mamnagement.
Variables
volatile U16	g_usb_event
	Public : U16 g_usb_event usb_connected is used to store USB events detected upon USB general interrupt subroutine Its value is managed by the following macros (See usb_task.h file) Usb_send_event(x) Usb_ack_event(x) Usb_clear_all_event() Is_usb_event(x) Is_not_usb_event(x).
volatile U8	private_sof_counter
	Private : (U8) private_sof_counter Incremented by host SOF interrupt subroutime This counter is used to detect timeout in host requests.

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Detailed Description

,vThis file contains the function declarations

Copyright (c) 2006 Atmel.

Please read file license.txt for copyright notice.

Version:

1.8 at90usb128-demo-hidgen-1_0_0

Id

usb_task.h,v 1.8 2006/03/10 15:25:58 rletendu Exp

Todo:

Bug:

Definition in file usb_task.h.

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