ATMEL: usb_device_task.h Source File

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# usb_device_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_DEVICE_TASK_H_
    00045 #define _USB_DEVICE_TASK_H_
    00046
    00049
    00050 //_____ I N C L U D E S ____________________________________________________
    00051
    00052
    00053 //_____ M A C R O S ________________________________________________________
    00054
    00055
    00056 //_____ D E C L A R A T I O N S ____________________________________________
    00057
    00058
    00064 extern bit   usb_suspended;
    00065
    00066
    00070 #define B_IDLE              0
    00071 #define B_SRP_INIT          1
    00072 #define B_PERIPHERAL        2
    00073 #define B_WAIT_ACON         3
    00074 #define B_HOST              4
    00075 #define B_END_HNP_SUSPEND   5
    00076
    00080 extern  U8  otg_device_sessions;
    00081 extern  U8  otg_b_device_state;
    00082 extern U8  sof_seen_in_session;
    00083
    00085 #define Start_session_with_srp()          (otg_device_sessions |= 0x01)
    00086 #define End_session_with_srp()            (otg_device_sessions &= ~0x01)
    00087 #define Is_session_started_with_srp()     (((otg_device_sessions&0x01) != 0) ? TRUE : FALSE)
    00088
    00090 #define Srp_sent_and_waiting_answer()     (otg_device_sessions |= 0x02)
    00091 #define Ack_srp_sent_and_answer()         (otg_device_sessions &= ~0x02)
    00092 #define Is_srp_sent_and_waiting_answer()  (((otg_device_sessions&0x02) != 0) ? TRUE : FALSE)
    00093
    00096 #define TB_SRP_FAIL_MIN       0x0A28
    00097 extern  U16  otg_tb_srp_cpt;
    00098 #define Init_tb_srp_counter()             (otg_tb_srp_cpt = 0)
    00099 #define Is_tb_srp_counter_overflow()      ((otg_tb_srp_cpt > TB_SRP_FAIL_MIN) ? TRUE : FALSE)
    00100
    00101
    00114 void usb_device_task_init     (void);
    00115
    00129 void usb_start_device  (void);
    00130
    00141 void usb_device_task   (void);
    00142
    00144
    00145 #endif /* _USB_DEVICE_TASK_H_ */
    00146