usbtest.c

Curtiss-Wright Controls Embedded Computing公司的cw183板bsp源代码

/* mouseTest.c - a wrapper file for the Dy 4 USB demo code  */

/* Copyright (c) 2002 Dy 4 Systems, Inc. */

/*
Modification History
--------------------
01a, 16moct02, tis  create 
*/

/*
DESCRIPTION
This libray contains the following routines:

testMouse - It Opens "/usbMo/0" device and reads it, then prints the mouse coordinates and the butons status.
testKeyboard -It Opens "/usbKb/0" device and reads it, and prints the stroked keys.
*/

/* includes */
#include "vxWorks.h"
#include "string.h"
#include "stdio.h"
#include "ioLib.h"
#include "sioLib.h"
#include "taskLib.h"
#include "config.h"

#define CTRL_Z              26  /* ASCI code for ^Z */

LOCAL BOOL enterPressed;

/*************************************************************************
*
* enterThread - waits for user to press [enter]
*
* RETURNS:  N/A
*/

LOCAL void enterThread ( void )

    {
    char bfr [256];

    printf ("\nPress [enter] to terminate the Mouse test.\n");
    gets (bfr);
    enterPressed = TRUE;
    }
    
/*************************************************************************
*
* testMouse - prints the mouses presses to the terminal
*
* RETURNS: OK or ERROR
*/

UINT16 testMouse ( void )
    {
    int     taskId;
    int     fd = 0;
    char    buf[4];
    int     count = 0;
     bzero(buf,4);

    if ((fd = open ("/usbMo/0", 2,0)) == ERROR)
    return (ERROR);
    ioctl(fd,F_SETFL,!_FNONBLOCK);

    /* Create thread to watch for Enter keypress */

    enterPressed = FALSE;

     if((taskId = taskSpawn ("tEnter", 
     
                 50,        /* priority */ /*tissa lowered the priority*/
                 0,     /* task options */ 
                 0x4000,    /* 16k stack space */   
                 (FUNCPTR) enterThread, 
                 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 )) ==ERROR)
    {
    printf(" TaskSpawn Error...!\n");
    return ERROR;   
    }

    while (!enterPressed)
    {
        
      if (read (fd, buf,3)== OK);
      {  
    printf("\rx:%x  y:%x  button:%x  count:%d  ", 
            buf[2], buf[1], 
            buf[0],count);
    count++;
      }
    taskDelay (5); 
    }

    taskDelete (taskId);
    close(fd);
    return OK;
    } 
    
/*************************************************************************
*
* testKeyboard - prints key presses to the terminal
*
* RETURNS: OK or ERROR
*/

UINT16 testKeyboard ( void )
    {
    int     taskId;
    char    inChar;
    int     fd = 0;
    int count = 0;

    /* Poll for input or until user presses CTRL-Z on USB keyboard or
     * [enter] on main keyboard. */


    if ((fd = open ("/usbKb/0", 2,0)) == ERROR)
    return (ERROR);


    /* Create thread to watch for keypress */

    enterPressed = FALSE;

     if((taskId = taskSpawn ("tEnter", 
     
                 50,        /* priority */ /*tissa lowered the priority*/
                 0,     /* task options */ 
                 0x4000,    /* 16k stack space */   
                 (FUNCPTR) enterThread, 
                 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 )) ==ERROR)
    {
    printf(" TaskSpawn Error...!\n");
    return ERROR;   
    }

    printf ("Press CTRL-Z to terminate polling.\n");

    while (!enterPressed)
    {
        if (read (fd, &inChar, 1) == OK)
        {
        printf ("ASCII %3d count:%d", inChar,count);
        count++;
        if (inChar >= 32)
            printf (" '%c'", inChar);
        printf ("\n");

        if (inChar == CTRL_Z)
            {
            printf ("Stopped by CTRL-Z\n");
            break;
            }
        }

    taskDelay (5); 
    }

    taskDelete (taskId);
    close(fd); 
    

    return OK;
    }