usb_task.h

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00013 
00014 /* Copyright (c) 2007, Atmel Corporation All rights reserved.
00015  *
00016  * Redistribution and use in source and binary forms, with or without
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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.
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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.
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00029  * THIS SOFTWARE IS PROVIDED BY ATMEL ``AS IS'' AND ANY EXPRESS OR IMPLIED
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00040 
00041 #ifndef _USB_TASK_H_
00042 #define _USB_TASK_H_
00043 
00046 
00047 //_____ I N C L U D E S ____________________________________________________
00048 
00049 
00050 //_____ M A C R O S ________________________________________________________
00051 
00055 #define Usb_send_event(x)               (g_usb_event |= (1<<x))
00056 #define Usb_ack_event(x)                (g_usb_event &= ~(1<<x))
00057 #define Usb_clear_all_event()           (g_usb_event = 0)
00058 #define Is_usb_event(x)                 ((g_usb_event & (1<<x)) ? TRUE : FALSE)
00059 #define Is_not_usb_event(x)             ((g_usb_event & (1<<x)) ? FALSE: TRUE)
00060 
00061 #define EVT_USB_POWERED               1         // USB plugged
00062 #define EVT_USB_UNPOWERED             2         // USB un-plugged
00063 #define EVT_USB_DEVICE_FUNCTION       3         // USB in device
00064 #define EVT_USB_HOST_FUNCTION         4         // USB in host
00065 #define EVT_USB_SUSPEND               5         // USB suspend
00066 #define EVT_USB_WAKE_UP               6         // USB wake up
00067 #define EVT_USB_RESUME                7         // USB resume
00068 #define EVT_USB_RESET                 8         // USB reset
00070 
00071 #define USB_MODE_UNDEFINED            0x00
00072 #define USB_MODE_HOST                 0x01
00073 #define USB_MODE_DEVICE               0x02
00074 
00075 //_____ D E C L A R A T I O N S ____________________________________________
00076 
00077 extern volatile U16 g_usb_event;
00078 extern U8 g_usb_mode;
00079 
00093 void usb_task_init     (void);
00094 
00105 void usb_task          (void);
00106 
00107 extern volatile U8 private_sof_counter;
00108 
00109 
00110 
00112 
00113 #endif /* _USB_TASK_H_ */
00114 

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