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 "device_template_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 "lib_mcu/wdt/wdt_drv.h" 00050 00051 00052 //_____ M A C R O S ________________________________________________________ 00053 00054 00055 //_____ D E F I N I T I O N S ______________________________________________ 00056 00057 00058 00059 //_____ D E C L A R A T I O N S ____________________________________________ 00060 00061 00062 volatile U8 cpt_sof; 00063 00064 U8 buf[256]; 00065 U8 rxok; 00066 00067 00078 void device_template_task_init(void) 00079 { 00080 Joy_init(); 00081 Hwb_button_init(); 00082 Leds_init(); 00083 cpt_sof=0; 00084 Usb_enable_sof_interrupt(); 00085 rxok=FALSE; 00086 } 00087 00095 void device_template_task(void) 00096 { 00097 U8 i; 00098 U8 *ptr; 00099 static U8 dummy_data; 00100 00101 //.. FIRST CHECK THE DEVICE ENUMERATION STATE 00102 if (Is_device_enumerated()) 00103 { 00104 //.. HERE START THE USB DEVICE APPLICATIVE CODE 00105 //.. The example bellow just perform a loop back transmition/reception 00106 //.. All data received wth the OUT endpoint are store in a ram buffer and 00107 //.. send back to the IN endpoint 00108 00109 //.. For example, blink a led with start of frame counter 00110 if(cpt_sof>0x7F) 00111 { Led0_on(); } 00112 else { Led0_off();} 00113 00114 //.. First interface management 00115 //.. Select the OUT endpoint declared in descriptors 00116 //.. load the endpoint with the content of a ram buffer for example 00117 Usb_select_endpoint(EP_TEMP_OUT); 00118 if ( Is_usb_receive_out()) 00119 { 00120 ptr=buf; 00121 for(i=Usb_byte_counter();i;i--) 00122 { 00123 *ptr++=Usb_read_byte(); 00124 } 00125 Usb_ack_receive_out(); 00126 rxok=TRUE; 00127 } 00128 //.. First interface management (cont) 00129 //.. Select the IN endpoint declared in descriptors 00130 //.. If we receive something, just store in the ram buffer 00131 Usb_select_endpoint(EP_TEMP_IN); 00132 if ( Is_usb_read_control_enabled()&&(rxok==TRUE)) 00133 { 00134 ptr=buf; 00135 for(i=0;i<EP_IN_LENGTH_TEMP1;i++) 00136 Usb_write_byte(*ptr++); 00137 Usb_ack_in_ready(); 00138 rxok=FALSE; 00139 } 00140 00141 //.. Second interface management (interrupt IN endpoint) 00142 //.. Just Send dummy data bytes 00143 Usb_select_endpoint(EP_TEMP_INT_IN); // Select this enpoint 00144 if (Is_usb_write_enabled()) // Check data can be loaded 00145 { // And load dummy data... 00146 Usb_write_byte(dummy_data); 00147 Usb_write_byte(dummy_data+1); 00148 Usb_write_byte(dummy_data+2); 00149 Usb_write_byte(dummy_data+3); 00150 Usb_ack_in_ready(); 00151 dummy_data+=4; 00152 } 00153 } 00154 } 00155 00156 00166 void sof_action() 00167 { 00168 cpt_sof++; 00169 }