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# 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.
    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  * THIS SOFTWARE IS PROVIDED BY ATMEL ``AS IS'' AND ANY EXPRESS OR IMPLIED
    00030  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
    00031  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE EXPRESSLY AND
    00032  * SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT,
    00033  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
    00034  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
    00035  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
    00036  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
    00037  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
    00038  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    00039  */
    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