project/commands/drawing/cmd_tswait.c

   1 /**************************************************************************/
   2 /*!
   3     @file     cmd_tswait.c
   4     @author   K. Townsend (microBuilder.eu)
   5
   6     @brief    Code to execute for cmd_tswait in the 'core/cmd'
   7               command-line interpretter.
   8
   9     @section LICENSE
  10
  11     Software License Agreement (BSD License)
  12
  13     Copyright (c) 2010, microBuilder SARL
  14     All rights reserved.
  15
  16     Redistribution and use in source and binary forms, with or without
  17     modification, are permitted provided that the following conditions are met:
  18
  19     1. Redistributions of source code must retain the above copyright
  20     notice, this list of conditions and the following disclaimer.
  21     2. Redistributions in binary form must reproduce the above copyright
  22     notice, this list of conditions and the following disclaimer in the
  23     documentation and/or other materials provided with the distribution.
  24     3. Neither the name of the copyright holders nor the
  25     names of its contributors may be used to endorse or promote products
  26     derived from this software without specific prior written permission.
  27
  28     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
  29     EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  30     WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  31     DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
  32     DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  33     (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  34     LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  35     ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  36     (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  37     SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  38 */
  39 /**************************************************************************/
  40 #include <stdio.h>
  41 #include <string.h>
  42
  43 #include "projectconfig.h"
  44 #include "core/cmd/cmd.h"
  45 #include "project/commands.h"       // Generic helper functions
  46
  47 #ifdef CFG_TFTLCD
  48   #include "drivers/displays/tft/touchscreen.h"
  49
  50 /**************************************************************************/
  51 /*!
  52     Waits for a touch screen event and returns the co-ordinates
  53 */
  54 /**************************************************************************/
  55 void cmd_tswait(uint8_t argc, char **argv)
  56 {
  57   tsTouchData_t data;
  58   int32_t delay;
  59   int32_t error = 0;
  60
  61   if (argc == 1)
  62   {
  63     getNumber (argv[0], &delay);
  64   }
  65   else
  66   {
  67     delay = 0;
  68   }
  69
  70   // Validate delay
  71   if (delay < 0)
  72   {
  73     printf("Invalid timeout%s", CFG_PRINTF_NEWLINE);
  74     return;
  75   }
  76
  77   // Blocking delay until a valid touch event occurs
  78   error = tsWaitForEvent(&data, delay > 0 ? (uint32_t)delay : 0);
  79
  80   if (error == TS_ERROR_NONE)
  81   {
  82     // A valid touch event occurred ... parse data
  83     printf("%d,%d%s",(int)data.xlcd, (int)data.ylcd, CFG_PRINTF_NEWLINE);
  84   }
  85   else
  86   {
  87     // Display error code
  88     printf("%d%s", (int)error, CFG_PRINTF_NEWLINE);
  89   }
  90
  91   return;
  92 }
  93
  94 #endif