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# hid_task.c

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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 AND FITNESS FOR A PARTICULAR PURPOSE 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 //_____  I N C L U D E S ___________________________________________________
    00042
    00043 #include "config.h"
    00044 #include "conf_usb.h"
    00045 #include "hid_task.h"
    00046 #include "lib_mcu/usb/usb_drv.h"
    00047 #include "usb_descriptors.h"
    00048 #include "modules/usb/device_chap9/usb_standard_request.h"
    00049 #include "usb_specific_request.h"
    00050 #include "lib_mcu/util/start_boot.h"
    00051
    00052
    00053
    00054 //_____ M A C R O S ________________________________________________________
    00055
    00056
    00057 //_____ D E F I N I T I O N S ______________________________________________
    00058
    00059
    00060 //_____ D E C L A R A T I O N S ____________________________________________
    00061
    00062          volatile U8    cpt_sof=0;
    00063 extern            U8    jump_bootloader;
    00064                   U8    g_last_joy       =0;
    00065
    00066
    00067 void hid_report_out  (void);
    00068 void hid_report_in   (void);
    00069
    00072 void hid_task_init(void)
    00073 {
    00074    Leds_init();
    00075    Joy_init();
    00076 }
    00077
    00081 void hid_task(void)
    00082 {
    00083    if(!Is_device_enumerated())          // Check USB HID is enumerated
    00084       return;
    00085
    00086    hid_report_out();
    00087    hid_report_in();
    00088 }
    00089
    00090
    00093 void hid_report_out(void)
    00094 {
    00095    Usb_select_endpoint(EP_HID_OUT);
    00096    if(Is_usb_receive_out())
    00097    {
    00098       //* Read report from HID Generic Demo
    00099       U8 led_state;
    00100       U8 led_number;
    00101       led_state      = Usb_read_byte()&0x0F; // RepportOUT[0] is LEDS value
    00102       led_number     = Usb_read_byte()&0x0F;
    00103       switch (led_number)
    00104       {
    00105          case 1:
    00106             if(led_state)
    00107             {  Led0_on();   }
    00108             else {Led0_off();}
    00109             break;
    00110          case 2:
    00111             if(led_state)
    00112             {  Led1_on();   }
    00113             else {Led1_off();}
    00114             break;
    00115          case 3:
    00116             if(led_state)
    00117             {  Led2_on();   }
    00118             else {Led2_off();}
    00119             break;
    00120          case 4:
    00121             if(led_state)
    00122             {  Led3_on();   }
    00123             else {Led3_off();}
    00124             break;
    00125       }
    00126       Usb_ack_receive_out();
    00127    }
    00128
    00129    //** Check if we received DFU mode command from host
    00130    if(jump_bootloader)
    00131    {
    00132       U32 volatile tempo;
    00133       Leds_off();
    00134       Usb_detach();                          // Detach actual generic HID application
    00135       for(tempo=0;tempo<70000;tempo++);      // Wait some time before
    00136       start_boot();                          // Jumping to booltoader
    00137    }
    00138 }
    00139
    00140
    00143 void hid_report_in(void)
    00144 {
    00145    U8 joy   =0;
    00146
    00147    Usb_select_endpoint(EP_HID_IN);
    00148    if(!Is_usb_write_enabled())
    00149       return;                                // Not ready to send report
    00150
    00151    // Build the Joytick report
    00152    if(Is_joy_up()|| Is_joy_down() || Is_joy_right() || Is_joy_left() )
    00153    {
    00154      joy=0x01;
    00155    }
    00156    if(joy==g_last_joy)
    00157       return;                                // Same report then no send report
    00158    g_last_joy=joy;
    00159
    00160    // Send report
    00161    Usb_write_byte(g_last_joy);               // Joystick
    00162    Usb_write_byte(GPIOR1);                   // Dummy (not used)
    00163    Usb_write_byte(GPIOR1);                   // Dummy (not used)
    00164    Usb_write_byte(GPIOR1);                   // Dummy (not used)
    00165    Usb_write_byte(GPIOR1);                   // Dummy (not used)
    00166    Usb_write_byte(GPIOR1);                   // Dummy (not used)
    00167    Usb_write_byte(GPIOR1);                   // Dummy (not used)
    00168    Usb_write_byte(GPIOR1);                   // Dummy (not used)
    00169    Usb_ack_in_ready();                       // Send data over the USB
    00170 }
    00171
    00176 void sof_action()
    00177 {
    00178    cpt_sof++;
    00179 }