gui_x_embos.c

ucgui的3.98版本的源代码

/*
*********************************************************************************************************
*                                             uC/GUI V3.98
*                        Universal graphic software for embedded applications
*
*                       (c) Copyright 2002, Micrium Inc., Weston, FL
*                       (c) Copyright 2002, SEGGER Microcontroller Systeme GmbH
*
*              礐/GUI is protected by international copyright laws. Knowledge of the
*              source code may not be used to write a similar product. This file may
*              only be used in accordance with a license and should not be redistributed
*              in any way. We appreciate your understanding and fairness.
*
----------------------------------------------------------------------
File        : GUI_X.c
Purpose     : Config / System dependent externals for GUI
---------------------------END-OF-HEADER------------------------------
*/

#include <stdio.h>
#include "RTOS.h"               /* embOS include */
#include "GUI.h"
#include "GUI_X.h"



/*********************************************************************
*
*      Timing:
*                 GUI_GetTime()
*                 GUI_Delay(int)

  Some timing dependent routines require a GetTime
  and delay funtion. Default time unit (tick), normally is
  1 ms.
*/

int GUI_X_GetTime(void) {
  return OS_GetTime();
}

void GUI_X_Delay(int Period) {
  OS_Delay(Period);
}

/*********************************************************************
*
*       GUI_X_ExecIdle()
*
*/
void GUI_X_ExecIdle(void) {
  OS_Delay(1);
}

/*********************************************************************
*
*      Multitasking:
*
*                 GUI_X_InitOS()
*                 GUI_X_GetTaskId()
*                 GUI_X_Lock()
*                 GUI_X_Unlock()
*
* Note:
*   The following routines are required only if emWin is used in a
*   true multi task environment, which means you have more than one
*   thread using the emWin API.
*   In this case the
*                       #define GUI_OS 1
*  needs to be in GUIConf.h
*/


static OS_RSEMA RSema;

void GUI_X_InitOS(void)    { OS_CreateRSema(&RSema);    }
void GUI_X_Unlock(void)    { OS_Unuse(&RSema); }
void GUI_X_Lock(void)      { OS_Use(&RSema);  }
U32  GUI_X_GetTaskId(void) { return (U32)OS_GetTaskID(); }


/*********************************************************************
*
*      Event driving (optional with multitasking)
*
*                 GUI_X_WaitEvent()
*                 GUI_X_SignalEvent()
*/


static OS_TASK* _pGUITask;

void GUI_X_WaitEvent(void)    {
  _pGUITask = OS_GetpCurrentTask();
  OS_WaitEvent(1);
}

void GUI_X_SignalEvent(void)    {
  if (_pGUITask) {
    OS_SignalEvent(1, _pGUITask);
  }
}

/*********************************************************************
*
*      Keyboard input from serial input
*
* Note:
*   If embOS is used, characters typed into the log window will be placed
*   in the keyboard buffer. This is a neat feature which allows you to
*   operate your target system without having to use or even to have
*   a keyboard connected to it. (nice for demos !)
*/

static void _OnRx(OS_U8 Data) {
  #if 0
    int Key;
    switch (Data) {
    case 'y':
      Key = GUI_KEY_LEFT;
      break;
    case 'x':
      Key = GUI_KEY_RIGHT;
      break;
    case 'q':
      Key = GUI_KEY_UP;
      break;
    case 'a':
      Key = GUI_KEY_DOWN;
      break;
    case 'w':
      Key = GUI_KEY_BACKSPACE;
      break;
    default:
      Key = Data;
    }
    GUI_StoreKeyMsg(Key, 1);
  #else
    GUI_StoreKeyMsg(Data, 1);
  #endif
}

void GUI_X_Init(void) {
  OS_SetRxCallback(_OnRx);
}

/*********************************************************************
*
*      Logging: OS dependent

Note:
  Logging is used in higher debug levels only. The typical target
  build does not use logging and does therefor not require any of
  the logging routines below. For a release build without logging
  the routines below may be eliminated to save some space.
  (If the linker is not function aware and eliminates unreferenced
  functions automatically)

*/

void GUI_X_Log     (const char *s) { OS_SendString(s); }
void GUI_X_Warn    (const char *s) { OS_SendString(s); }
void GUI_X_ErrorOut(const char *s) { OS_SendString(s); }