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# usb_task.h File Reference

,vThis file contains the function declarations More...

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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 | Is_usb_device() (g_usb_mode==USB_MODE_DEVICE ? TRUE : FALSE)
#define | Is_usb_host() (g_usb_mode==USB_MODE_HOST ? TRUE : FALSE)
#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 | GET_STATUS 0x00
#define | GET_DEVICE 0x01
#define | CLEAR_FEATURE 0x01
| see FEATURES below
#define | GET_STRING 0x03
#define | SET_FEATURE 0x03
| see FEATURES below
#define | SET_ADDRESS 0x05
#define | GET_DESCRIPTOR 0x06
#define | SET_DESCRIPTOR 0x07
#define | GET_CONFIGURATION 0x08
#define | SET_CONFIGURATION 0x09
#define | GET_INTERFACE 0x0A
#define | SET_INTERFACE 0x0B
#define | SYNCH_FRAME 0x0C
#define | GET_DEVICE_DESCRIPTOR 1
#define | GET_CONFIGURATION_DESCRIPTOR 4
#define | REQUEST_DEVICE_STATUS 0x80
#define | REQUEST_INTERFACE_STATUS 0x81
#define | REQUEST_ENDPOINT_STATUS 0x82
#define | ZERO_TYPE 0x00
#define | INTERFACE_TYPE 0x01
#define | ENDPOINT_TYPE 0x02
#define | DEVICE_DESCRIPTOR 0x01
#define | CONFIGURATION_DESCRIPTOR 0x02
#define | STRING_DESCRIPTOR 0x03
#define | INTERFACE_DESCRIPTOR 0x04
#define | ENDPOINT_DESCRIPTOR 0x05
#define | DEVICE_QUALIFIER_DESCRIPTOR 0x06
#define | OTHER_SPEED_CONFIGURATION_DESCRIPTOR 0x07
#define | FEATURE_DEVICE_REMOTE_WAKEUP 0x01
#define | FEATURE_ENDPOINT_HALT 0x00
#define | TEST_J 0x01
#define | TEST_K 0x02
#define | TEST_SEO_NAK 0x03
#define | TEST_PACKET 0x04
#define | TEST_FORCE_ENABLE 0x05
#define | BUS_POWERED 0
#define | SELF_POWERED 1
#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).
U8 | g_usb_mode
| Public : (U8) g_usb_mode Used in dual role application (both device/host) to store the current mode the usb controller is operating /.
U8 | usb_remote_wup_feature
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.

## Detailed Description

,vThis file contains the function declarations

Copyright (c) 2006 Atmel.

Please read file license.txt for copyright notice.

Version:
  1.2 at90usb162-2enum-mouse_ms-1_0_1
  Id
    usb_task.h,v 1.2 2006/09/08 11:41:06 arobert Exp

Todo:

Bug:

Definition in file usb_task.h.