minigui1.6-smdk2416 IAL引擎移植

 

minigui1.6-smdk2416 IAL引擎移植

Crosstool: arm-linux-gcc-4.4.3硬件环境：

Host：X86PC

Target：smdk2416开发板

软件环境：

 Host：debian5

 Target：arm-linux kernel:linux-2.6.38.8

Email:[email protected] by 厦门

 

目前网格上比较多的有2各种方案

1．  Singlewolfyu (大漠孤狼)在 MiniGUI 1.3.3 移植详解中带屏幕校正功能的 2410 的 IAL

2．  MiniGUI-1.6.10+tslib-1.4移植到s3c2410+linux2.6.33.2

本人试过第2种方案，编译之后一直说找不ts_open之类相关库文件，由于内核触摸屏的驱动采用input系统与第1种方案有所不同，且我的内核中已经移植好了tslib-1.4，校准方面采用tslib-1.4生成好的/etc/pointercal文件，因此结合2种方案重新做了个IAL引擎

如何在MiniGUI中添加新的IAL引擎：（假设新的IAL引擎为_NAME_IAL）

1.         在ial.c文件中添加新引擎的入口：

例如：(ial.c文件中)

A) #ifdef _NAME _IAL

   #include "NAME.h"

   #endif

B)       在input数组中添加

       #ifdef _NAME _IAL

       {"NAME ", InitNAMEInput, TermNAMEInput},

       #endif

2.       把新的 .c 添加到 Makefile.am 文件中即可。

3.       修改配置文件IAL引擎项，使用这个新的IAL引擎_NAME_IAL.

步骤一：修改SMDK2410源程序2410.c，2410.h

修改后覆盖src/ial/2410.c 2410.h，程序见附录

主要改wait_event这个函数

编译发现个问题，如果是覆盖形式则要make clean/ make distclean 再重新编译，要编个10多分钟，但在原有基础上作修改，则只需要make /make install即可，不知道为何

步骤二：重新配置编译libminigui1.6.0

编译步骤见另一文章

http://blog.csdn.net/hebu007/article/details/6739597

步骤三：改写配置文件Minigui.cfg

[system]                                                                    

# GAL engine and default options                                            

gal_engine=fbcon                                                            

#gal_engine=qvfb                                                            

defaultmode=640x480-16bpp                                                   

                               

# IAL engine                   

#ial_engine=console            

ial_engine=SMDK2410        //对应2410.c      

                        

mdev=/dev/input/event0  

mtype=none              

#IMPS2               

                     

[fbcon]              

defaultmode=640x480-16bpp

                        

[qvfb]                  

defaultmode=640x480-16bpp

 

 

附录一2410.c

#include
#include
#include
#include

#include
#include "common.h"

#ifdef _SMDK2410_IAL

#include

#include "ial.h"
#include "2410.h"
#include

struct input_event ev0;
#define TS_DEVICE  "/dev/input/event0"
#define TS_CALIBFILE "/etc/pointercal"

#define MINX 660
#define MINY 780
#define LCD_MAX_X 640
#define LCD_MAX_Y 480
#define MOUSE_MAX_X 2745
#define MOUSE_MAX_Y 2560

typedef struct {
    unsigned short pressure;
    unsigned short x;
    unsigned short y;
    unsigned short pad;
} TS_EVENT;

static TS_EVENT ts;
static POINT lcd;
static int mouse_fd = -1;
int calibParam[7];
int lcdTimeOut = 0;

 

static int mouse_update(void)
{
 return 1;
}

static void mouse_getxy (int* x, int* y)
{
 if(lcd.x < 0)
  lcd.x = 0;
 if(lcd.x > 640)
  lcd.x = 639;

 if(lcd.y < 0)
  lcd.y = 0;
 if(lcd.y > 480)
  lcd.y = 479;

 *x = lcd.x;
 *y = lcd.y;   
}

void ts_getraw(int *x, int *y)
{
 *x = ts.x;
 *y = ts.y;   
}

static int mouse_getbutton(void)
{
 lcdTimeOut = 0;
 return (ts.pressure? IAL_MOUSE_LEFTBUTTON:0 );
}

static unsigned char pres_state = 0;

#ifdef _LITE_VERSION
static int wait_event (int which, int maxfd, fd_set *in, fd_set *out, fd_set *
except,
struct timeval *timeout)
#else
static int wait_event (int which, fd_set *in, fd_set *out, fd_set *except,
struct timeval *timeout)
#endif
{
        fd_set rfds;
        int    retvalue = 0;
         int retv;
        int    e;
       
        static int last_pressure=0;
       
        if (!in) {
                in = &rfds;
                FD_ZERO (in);
        }
       
        if ((which & IAL_MOUSEEVENT) && mouse_fd >= 0) {
                FD_SET (mouse_fd, in);
                #ifdef _LITE_VERSION
                if (mouse_fd > maxfd) maxfd = mouse_fd;
                #endif
        }
       
       
        #ifdef _LITE_VERSION
        e = select (maxfd + 1, in, out, except, timeout) ;
        #else
        e = select (FD_SETSIZE, in, out, except, timeout) ;
        #endif
 if (e > 0) {
  if (mouse_fd >= 0  && FD_ISSET (mouse_fd, in) ) {
   retv = read(mouse_fd, &ev0, sizeof(struct input_event) );
   if ( retv < sizeof(struct input_event) ) return 0;
   switch(ev0.type)
   {
    case EV_ABS:
     switch(ev0.code)
     {
      case ABS_X:
       ts.x  = ev0.value;
       break;
      case ABS_Y:
       ts.y = ev0.value;
       break;
      case ABS_PRESSURE:
       if(ev0.value == 1)
       {
        pres_state = 1;
       }else
       if(ev0.value == 0)
       {
        if(pres_state == 1)pres_state = 2;
       }
       ts.pressure = ev0.value;
       break;
      default:break;
     }
     break;
    case EV_KEY:
     if(ev0.code== BTN_TOUCH && ev0.value == 0)
     {

     }
     break;
    default:break;
   }
   if(pres_state) {
    if(pres_state == 2) pres_state = 0;
    lcd.x = (calibParam[0] * ts.x + calibParam[1] * ts.y + calibParam[2]) / calibParam[6];
    lcd.y = (calibParam[3] * ts.x + calibParam[4] * ts.y + calibParam[5]) / calibParam[6];
    retvalue |= IAL_MOUSEEVENT;
   }
  }
 }
  else if (e < 0) {
                return -1;
        } 

       
        return retvalue;
}
static int wait_event1 (int which, fd_set *in, fd_set *out, fd_set *except,
  struct timeval *timeout)
{
 int retvalue = 0;
 int retv;

 retv = read(mouse_fd, &ev0, sizeof(struct input_event) );
 if ( retv < sizeof(struct input_event) ) return 0;
 switch(ev0.type)
 {
  case EV_ABS:
   switch(ev0.code)
   {
    case ABS_X:
     ts.x  = ev0.value;
     break;
    case ABS_Y:
     ts.y = ev0.value;
     break;
    case ABS_PRESSURE:
     if(ev0.value == 1)
     {
      pres_state = 1;
     }else
     if(ev0.value == 0)
     {
      if(pres_state == 1)pres_state = 2;
     }
     ts.pressure = ev0.value;
     break;
    default:break;
   }
   break;
  case EV_KEY:
   break;
  default:break;
 }
 if(!pres_state) return 0;
 if(pres_state == 2) pres_state = 0;
 lcd.x = (calibParam[0] * ts.x + calibParam[1] * ts.y + calibParam[2]) / calibParam[6];
 lcd.y = (calibParam[3] * ts.x + calibParam[4] * ts.y + calibParam[5]) / calibParam[6];
 retvalue |= IAL_MOUSEEVENT;

 return retvalue;
}

BOOL Init2410Input (INPUT* input, const char* mdev, const char* mtype)
{
 int cal_fd;
 int ret;

 mouse_fd = open (mdev, O_RDONLY);
 if (mouse_fd < 0 ) {
  fprintf (stderr, "2410: Can not open Touch Screen!\n");
  return FALSE;
 }

 cal_fd = open(TS_CALIBFILE, O_RDWR);
 if (cal_fd < 0)
 {
  fprintf (stderr, "2410: Open touch screen calibration file error,use default!\n");
  calibParam[0] = 354;
  calibParam[1] = -71059;
  calibParam[2] = 57310544;
  calibParam[3] = 62332;
  calibParam[4] =-563;
  calibParam[5] = -16260456;
  calibParam[6] = 65536;
 }
 else
 {
  char pcalbuf[200];
  int index = 0;
  char *tokptr;  
  ret = read(cal_fd,pcalbuf,200);
  calibParam[0] = atoi(strtok(pcalbuf," "));
  index=1;
  while(index<7) {
   tokptr = strtok(NULL," ");
   if(*tokptr!='\0') {
    calibParam[index] = atoi(tokptr);
    index++;
   }
  }

 }

 for (ret = 0; ret < 7; ret++)
 {
  printf("%d\n", calibParam[ret]);
 }
 close(cal_fd);

 input->update_mouse = mouse_update;
 input->get_mouse_xy = mouse_getxy;
 input->set_mouse_xy = NULL;
 input->get_mouse_button = mouse_getbutton;
 input->set_mouse_range = NULL;

 input->update_keyboard = NULL;
 input->get_keyboard_state = NULL;
 input->set_leds = NULL;

 input->wait_event = wait_event;

 return TRUE;
}

void Term2410Input (void)
{
 if (mouse_fd >= 0)
  close(mouse_fd);
}

#endif /* _DUMMY_IAL */