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# usb_task.h

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    00001 /*This file is prepared for Doxygen automatic documentation generation.*/
    00013
    00014 /* Copyright (c) 2009 Atmel Corporation. All rights reserved.
    00015  *
    00016  * Redistribution and use in source and binary forms, with or without
    00017  * modification, are permitted provided that the following conditions are met:
    00018  *
    00019  * 1. Redistributions of source code must retain the above copyright notice,
    00020  * this list of conditions and the following disclaimer.
    00021  *
    00022  * 2. Redistributions in binary form must reproduce the above copyright notice,
    00023  * this list of conditions and the following disclaimer in the documentation
    00024  * and/or other materials provided with the distribution.
    00025  *
    00026  * 3. The name of Atmel may not be used to endorse or promote products derived
    00027  * from this software without specific prior written permission.
    00028  *
    00029  * 4. This software may only be redistributed and used in connection with an Atmel
    00030  * AVR product.
    00031  *
    00032  * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED
    00033  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
    00034  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE EXPRESSLY AND
    00035  * SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT,
    00036  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
    00037  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
    00038  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
    00039  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
    00040  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
    00041  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    00042  */
    00043
    00044 #ifndef _USB_TASK_H_
    00045 #define _USB_TASK_H_
    00046
    00049
    00050 //_____ I N C L U D E S ____________________________________________________
    00051
    00052
    00053 //_____ M A C R O S ________________________________________________________
    00054
    00058 #define Usb_send_event(x)               (g_usb_event |= (1<<x))
    00059 #define Usb_ack_event(x)                (g_usb_event &= ~(1<<x))
    00060 #define Usb_clear_all_event()           (g_usb_event = 0)
    00061 #define Is_usb_event(x)                 ((g_usb_event & (1<<x)) ? TRUE : FALSE)
    00062 #define Is_not_usb_event(x)             ((g_usb_event & (1<<x)) ? FALSE: TRUE)
    00063
    00064 #define EVT_USB_POWERED               1         // USB plugged
    00065 #define EVT_USB_UNPOWERED             2         // USB un-plugged
    00066 #define EVT_USB_DEVICE_FUNCTION       3         // USB in device
    00067 #define EVT_USB_HOST_FUNCTION         4         // USB in host
    00068 #define EVT_USB_SUSPEND               5         // USB suspend
    00069 #define EVT_USB_WAKE_UP               6         // USB wake up
    00070 #define EVT_USB_RESUME                7         // USB resume
    00071 #define EVT_USB_RESET                 8         // USB reset
    00072
    00073
    00074 #define USB_MODE_UNDEFINED            0x00
    00075 #define USB_MODE_HOST                 0x01
    00076 #define USB_MODE_DEVICE               0x02
    00077
    00078 //_____ D E C L A R A T I O N S ____________________________________________
    00079
    00080 extern volatile U16 g_usb_event;
    00081 extern U8 g_usb_mode;
    00082
    00096 void usb_task_init     (void);
    00097
    00108 void usb_task          (void);
    00109
    00110 extern volatile U8 private_sof_counter;
    00111
    00112
    00113
    00115
    00116 #endif /* _USB_TASK_H_ */
    00117