mgdrv-ucosii.c

使用miniGUI模拟器的简单开发例子(值得参考)

/**
 * \file mgdrv-ucosii.h
 * \author Zhong Shuyi <[e-mail]>
 * \date 2002/01/06
 * 
 \verbatim
    Copyright (C) 2002-2005 Feynman Software.
    Copyright (C) 1998-2002 Wei Yongming.

    This file is part of MiniGUI, a compact cross-platform Graphics 
    User Interface (GUI) support system for real-time embedded systems.

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

    If you are using MiniGUI for developing commercial, proprietary, or other
    software not covered by the GPL terms, you must have a commercial license
    for MiniGUI. Please see http://www.minigui.com/product/index.html for 
    how to obtain this. If you are interested in the commercial MiniGUI 
    licensing, please write to [e-mail]. 

 \endverbatim
 */

/*
 * $Id: mgdrv-ucosii.c,v 1.2 2005/01/31 09:49:30 weiym Exp $
 * 
 *             MiniGUI for Linux/uClinux, eCos, uC/OS-II, and VxWorks version 1.6.x
 *             Copyright (C) 2002-2005 Feynman Software.
 *             Copyright (C) 1998-2002 Wei Yongming.
 */

#include <minigui/common.h>
#include <minigui/minigui.h>
#include <minigui/gdi.h>
#include <minigui/window.h>

/* --------------------- For Common IAL Engine ----------------- */
/* Should be implemented if you use common ial engine in MiniGUI */

#define COMM_MOUSEINPUT    0x01  // mouse event
#define COMM_KBINPUT       0x02  // keyboard event

/*
 * Waits for input for keyboard and touchpanel. 
 * If no data, this function should go into sleep;
 * when data is available, keyboard or touchpanel driver should wake up
 * the task/thread in MiniGUI who call comm_wait_for_input.
 *
 * Normal implementation make this function sleep on a ucosii semaphore.
 * return COMM_MOUSEINPUT or COMM_KBINPUT according to type of the input event.
 */
int comm_wait_for_input (void)
{
    // TODO...
    return 0;
}

/*
 * Gets touchpanel position and button data.
 * x, y   : position values
 * button : Non-zero value means pen is down.
 */
int comm_ts_getdata (short *x, short *y, short *button)
{
    // TODO...
    return 0;
}

/*
 * Gets keyboard key data.
 * key        : return MiniGUI scancode of the key.
 * key_status : key down or up, non-zero value means down.
 */
int comm_kb_getdata (short *key, short *key_status)
{
    // TODO...
    return 0;
}

/* --------------------- I/O functions -------------------------- */
// for debug purpose

/* Gets a char from uart */
BYTE drv_uart_get_byte (void)
{
    // TODO...
}

/* Sends a char to uart */
void drv_uart_send_byte (BYTE ch)
{
    // TODO...
}

/* ----------------- Implementation of MiniGUI LCD driver interface --------------- */

#define FB_TYPE_RGB565    1  // RGB565 color format for 16 bpp
#define FB_TYPE_RGB332    2  // RGB332 color format for 8 bpp

struct lcd_info {
    short height, width;  // Pixels
    short bpp;            // Depth (bits/pixel)
    short type;           // pixel type
    short rlen;           // Length of one raster line in bytes
    void  *fb;            // Frame buffer
};

int drv_lcd_init (void)
{
    /* Do LCD initialization here, if you have not. */ 
    return 0;
}

int drv_lcd_getinfo (struct lcd_info *li)
{
    /* 
     * Set LCD information in a lcd_info structure pointed by li
     * according to properties of your LCD.
     */
	li->width  = 320;
	li->height = 240;
	li->bpp    = 16;
	li->type   = FB_TYPE_RGB565;
	li->rlen   = 320;
	li->fb     = (void*)0xc000000;

    return 0;
}

/* ------------------- Application entry for uC/OS-II -------------- */
/* for reference only */

/*
 * main task of MiniGUI
 */
static void* mg_main_task (void* args)
{
    OSTimeDly (400);
    
    /*
     * Enter entry in MiniGUI library
     */
    minigui_entry (0, NULL);

    return NULL;
}

/*
 * MiniGUI entry for uC/OS-II
 * You can call this function before you call OSStart.
 */
void minigui_app_entry (void)
{
    pthread_t main_thread;

    /*
     * Should initialize heap memory management module first
     * before using MiniGUI.
     */
    if (ucos2_malloc_init ()) {
        fprintf (stderr, "Can not init our own malloc implementation for uC/OS-II.\n");
        return;
    }
    /*
     * Should initialize POSIX thread module first
     * before using MiniGUI.
     */
    if (ucos2_posix_pthread_init ()) {
        fprintf (stderr, "Can not init our own pthread implementation for uC/OS-II.\n");
        return;
    }

    /*
     * Creating a independent thread for MiniGUI main task is a good idea.
     */
	pthread_create (&main_thread, NULL, mg_main_task, NULL);
}