cdc_task.c

Go to the documentation of this file.
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 "cdc_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 "usb_specific_request.h"
00053 #include "lib_mcu/uart/uart_lib.h"
00054 #include "uart_usb_lib.h"
00055 #include "lib_mcu/util/start_boot.h"
00056 #include <stdio.h>
00057 
00058 
00059 //_____ M A C R O S ________________________________________________________
00060 
00061 
00062 
00063 //_____ D E F I N I T I O N S ______________________________________________
00064 
00065 
00066 
00067 //_____ D E C L A R A T I O N S ____________________________________________
00068 
00069 
00070 volatile U8  cpt_sof;
00071 extern U8    rx_counter;
00072 extern U8    tx_counter;
00073 extern volatile U8 usb_request_break_generation;
00074 S_line_coding line_coding;
00075 S_line_status line_status;      // for detection of serial state input lines
00076 S_serial_state serial_state;   // for serial state output lines
00077 
00078 volatile U8 rs2usb[10];
00079 
00080 
00089 void cdc_task_init(void)
00090 {
00091    uart_init();
00092    Uart_enable_it_rx();
00093    Leds_init();
00094    Joy_init();
00095    Hwb_button_init();
00096    Usb_enable_sof_interrupt();
00097 #ifdef __GNUC__
00098     fdevopen((int (*)(char, FILE*))(uart_usb_putchar),(int (*)(FILE*))uart_usb_getchar); //for printf redirection 
00099 #endif
00100 }
00101 
00102 
00103 
00111 void cdc_task(void)
00112 {
00113       
00114    if(Is_device_enumerated() && line_status.DTR) //Enumeration processs OK and COM port openned ?
00115         {
00116       if (Uart_tx_ready())    //USART free ?
00117       {
00118          if (uart_usb_test_hit())   // Something received from the USB ?
00119          {
00120              while (rx_counter)
00121             {
00122                uart_putchar(uart_usb_getchar());   // loop back USB to USART
00123                Led3_toggle();
00124             }
00125          }
00126       }
00127 
00128       if ( cpt_sof>=REPEAT_KEY_PRESSED)   //Debounce joystick events
00129       {
00130          if (Is_btn_middle()){
00131             printf ("Select Pressed !\r\n");
00132          }
00133          if (Is_joy_right()) {
00134             printf ("Right Pressed !\r\n");
00135             serial_state.bDCD = TRUE;
00136          }
00137          else
00138             serial_state.bDCD = FALSE;
00139 
00140          if (Is_joy_left()) {
00141             printf ("Left Pressed !\r\n");
00142             serial_state.bDSR = TRUE;
00143          }
00144          else
00145             serial_state.bDSR = FALSE;
00146 
00147          if (Is_joy_down())
00148          printf ("Down Pressed !\r\n");
00149 
00150          if (Is_joy_up())
00151          printf ("Up Pressed !\r\n");
00152 
00153          if(Is_btn_left())
00154          printf("Hello from AT90USBXXX !\r\n");
00155          
00156          cdc_update_serial_state();
00157       }
00158 
00159       if(usb_request_break_generation==TRUE)
00160       {
00161          usb_request_break_generation=FALSE;
00162          Led2_toggle();
00163       }
00164    }
00165 }
00166 
00178 void sof_action()
00179 {
00180    cpt_sof++;
00181 }
00182 
00183 
00189 #ifdef __GNUC__
00190  ISR(USART1_RX_vect)
00191 #else
00192 #pragma vector = USART1_RX_vect
00193 __interrupt void usart_receive_interrupt()
00194 #endif
00195 {
00196    U8 i=0;
00197    U8 save_ep;
00198    
00199    if(Is_device_enumerated()) 
00200    {
00201       save_ep=Usb_get_selected_endpoint();   
00202       Usb_select_endpoint(TX_EP);
00203       do 
00204       {
00205          if(Uart_rx_ready())
00206          {
00207             rs2usb[i]=Uart_get_byte();
00208             i++;
00209          }
00210       }while(Is_usb_write_enabled()==FALSE );
00211       uart_usb_send_buffer((U8*)&rs2usb,i);
00212       Usb_select_endpoint(save_ep);
00213    }
00214 }

Generated on Fri Sep 11 14:25:27 2009 for ATMEL by  doxygen 1.5.3