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 //_____ I N C L U D E S ___________________________________________________ 00045 00046 #include "config.h" 00047 #include "conf_usb.h" 00048 #include "device_template_task.h" 00049 #include "lib_mcu/usb/usb_drv.h" 00050 #include "usb_descriptors.h" 00051 #include "modules/usb/device_chap9/usb_standard_request.h" 00052 #include "lib_mcu/wdt/wdt_drv.h" 00053 00054 00055 //_____ M A C R O S ________________________________________________________ 00056 00057 00058 //_____ D E F I N I T I O N S ______________________________________________ 00059 00060 00061 00062 //_____ D E C L A R A T I O N S ____________________________________________ 00063 00064 00065 volatile U8 cpt_sof; 00066 00067 U8 buf[256]; 00068 U8 rxok; 00069 00070 00081 void device_template_task_init(void) 00082 { 00083 Joy_init(); 00084 Hwb_button_init(); 00085 Leds_init(); 00086 cpt_sof=0; 00087 Usb_enable_sof_interrupt(); 00088 rxok=FALSE; 00089 } 00090 00098 void device_template_task(void) 00099 { 00100 U8 i; 00101 U8 *ptr; 00102 static U8 dummy_data; 00103 00104 //.. FIRST CHECK THE DEVICE ENUMERATION STATE 00105 if (Is_device_enumerated()) 00106 { 00107 //.. HERE START THE USB DEVICE APPLICATIVE CODE 00108 //.. The example bellow just perform a loop back transmition/reception 00109 //.. All data received wth the OUT endpoint are store in a ram buffer and 00110 //.. send back to the IN endpoint 00111 00112 //.. For example, blink a led with start of frame counter 00113 if(cpt_sof>0x7F) 00114 { Led0_on(); } 00115 else { Led0_off();} 00116 00117 //.. First interface management 00118 //.. Select the OUT endpoint declared in descriptors 00119 //.. load the endpoint with the content of a ram buffer for example 00120 Usb_select_endpoint(EP_TEMP_OUT); 00121 if ( Is_usb_receive_out()) 00122 { 00123 ptr=buf; 00124 for(i=Usb_byte_counter();i;i--) 00125 { 00126 *ptr++=Usb_read_byte(); 00127 } 00128 Usb_ack_receive_out(); 00129 rxok=TRUE; 00130 } 00131 //.. First interface management (cont) 00132 //.. Select the IN endpoint declared in descriptors 00133 //.. If we receive something, just store in the ram buffer 00134 Usb_select_endpoint(EP_TEMP_IN); 00135 if ( Is_usb_read_control_enabled()&&(rxok==TRUE)) 00136 { 00137 ptr=buf; 00138 for(i=0;i<EP_IN_LENGTH_TEMP1;i++) 00139 Usb_write_byte(*ptr++); 00140 Usb_ack_in_ready(); 00141 rxok=FALSE; 00142 } 00143 00144 //.. Second interface management (interrupt IN endpoint) 00145 //.. Just Send dummy data bytes 00146 Usb_select_endpoint(EP_TEMP_INT_IN); // Select this enpoint 00147 if (Is_usb_write_enabled()) // Check data can be loaded 00148 { // And load dummy data... 00149 Usb_write_byte(dummy_data); 00150 Usb_write_byte(dummy_data+1); 00151 Usb_write_byte(dummy_data+2); 00152 Usb_write_byte(dummy_data+3); 00153 Usb_ack_in_ready(); 00154 dummy_data+=4; 00155 } 00156 } 00157 } 00158 00159 00169 void sof_action() 00170 { 00171 cpt_sof++; 00172 }