usb_device_task.h

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00001 /*This file has been prepared for Doxygen automatic documentation generation.*/
00013 
00014 /* Copyright (c) 2007, Atmel Corporation All rights reserved.
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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
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_DEVICE_TASK_H_
00042 #define _USB_DEVICE_TASK_H_
00043 
00046 
00047 //_____ I N C L U D E S ____________________________________________________
00048 
00049 
00050 //_____ M A C R O S ________________________________________________________
00051 
00052 
00053 //_____ D E C L A R A T I O N S ____________________________________________
00054 
00055 
00061 extern bit   usb_suspended;
00062 
00063 
00067 #define B_IDLE              0
00068 #define B_SRP_INIT          1
00069 #define B_PERIPHERAL        2
00070 #define B_WAIT_ACON         3
00071 #define B_HOST              4
00072 #define B_END_HNP_SUSPEND   5
00073 
00077 extern  U8  otg_device_sessions;
00078 extern  U8  otg_b_device_state;
00079 extern U8  sof_seen_in_session;
00080 
00082 #define Start_session_with_srp()          (otg_device_sessions |= 0x01)
00083 #define End_session_with_srp()            (otg_device_sessions &= ~0x01)
00084 #define Is_session_started_with_srp()     (((otg_device_sessions&0x01) != 0) ? TRUE : FALSE)
00085 
00087 #define Srp_sent_and_waiting_answer()     (otg_device_sessions |= 0x02)
00088 #define Ack_srp_sent_and_answer()         (otg_device_sessions &= ~0x02)
00089 #define Is_srp_sent_and_waiting_answer()  (((otg_device_sessions&0x02) != 0) ? TRUE : FALSE)
00090 
00093 #define TB_SRP_FAIL_MIN       0x0A28
00094 extern  U16  otg_tb_srp_cpt;
00095 #define Init_tb_srp_counter()             (otg_tb_srp_cpt = 0)
00096 #define Is_tb_srp_counter_overflow()      ((otg_tb_srp_cpt > TB_SRP_FAIL_MIN) ? TRUE : FALSE)
00097 
00098 
00111 void usb_device_task_init     (void);
00112 
00126 void usb_start_device  (void);
00127 
00138 void usb_device_task   (void);
00139 
00141 
00142 #endif /* _USB_DEVICE_TASK_H_ */
00143 

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