usb_task.h

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00013 
00014 /* Copyright (c) 2009 Atmel Corporation. All rights reserved.
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00016  * Redistribution and use in source and binary forms, with or without
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00020  * this list of conditions and the following disclaimer.
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00022  * 2. Redistributions in binary form must reproduce the above copyright notice,
00023  * this list of conditions and the following disclaimer in the documentation
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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  * 4. This software may only be redistributed and used in connection with an Atmel
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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
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 

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