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Full Color LED 디바이스 제어

Full Color LED 디바이스 제어. 2012 내장형 시스템 설계. 2012. 11. 21. Table of Contents. Full Color LED 디바이스 구성 Full Color LED 디바이스 드라이버 Full Color LED JNI 라이브러리 작성 Full Color LED 안드로이드 App 구현 JNI 라이브러리 빌드 결과 화면. Full Color LED 디바이스 구성 (1). FPGA 내부의 컨트롤러에 의해 제어됨.

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Full Color LED 디바이스 제어

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  1. Full Color LED 디바이스 제어 2012 내장형 시스템 설계 2012. 11. 21

  2. Table of Contents • Full Color LED디바이스 구성 • Full Color LED 디바이스 드라이버 • Full Color LED JNI 라이브러리 작성 • Full Color LED 안드로이드App 구현 • JNI 라이브러리 빌드 • 결과 화면

  3. Full Color LED 디바이스구성 (1) • FPGA 내부의 컨트롤러에 의해 제어됨

  4. Full Color LED 디바이스구성 (2) • 9bit로 구성된 12개의 레지스터

  5. Full Color LED 디바이스 드라이버 (1) • 드라이버 코드위치 • “~/linux-3.0.15-s4210/drivers/hanback“ 디렉토리에 포함되어있음 • 드라이버 소스 코드 (fullcolorled.c) #include<linux/miscdevice.h> #include<linux/platform_device.h> #include<linux/fs.h> #include<linux/file.h> #include<linux/mm.h> #include<linux/list.h> #include<asm/io.h> #include<asm/uaccess.h> #include<asm/cacheflush.h> #include<linux/init.h> #include<linux/module.h> #include<linux/kernel.h> #include<linux/fs.h> #include<linux/errno.h> #include<linux/types.h> #include<linux/ioport.h> #include<linux/delay.h>

  6. Full Color LED 디바이스 드라이버 (2) • 드라이버 소스 코드 (fullcolorled.c) #define DRIVER_AUTHOR "hanback" #define DRIVER_DESC "full color led test program" #define FULLCOLORLED_NAME "fullcolorled" #define FULLCOLORLED_MODULE_VERSION "FULL COLOR LED V0.1" #define FULLCOLORLED_ADDRESS 0x05000000 #define FULLCOLORLED_ADDRESS_RANGE 0x1000 #define FULL_LED1 9 #define FULL_LED2 8 #define FULL_LED3 7 #define FULL_LED4 6 #define ALL_LED 5 staticintfullled_usage = 0; staticintled_num=0; staticunsignedlong *fullled_ioremap; staticunsignedshort *full_led_addr[4][3];

  7. Full Color LED 디바이스 드라이버(3) • 드라이버 소스 코드 (fullcolorled.c) intfullled_open(structinode *minode, struct file *mfile) { if(fullled_usage != 0) return -EBUSY; fullled_ioremap=ioremap(FULLCOLORLED_ADDRESS,FULLCOLORLED_ADDRESS_RANGE); if(!check_mem_region((unsignedlong)fullled_ioremap, FULLCOLORLED_ADDRESS_RANGE)) { request_mem_region((unsignedlong)fullled_ioremap, FULLCOLORLED_ADDRESS_RANGE, FULLCOLORLED_NAME); } elseprintk("driver: unable to register this!\n"); full_led_addr[0][0] =(unsignedshort *)((unsignedlong)fullled_ioremap+0xa0); full_led_addr[0][1] =(unsignedshort *)((unsignedlong)fullled_ioremap+0xa2); full_led_addr[0][2] =(unsignedshort *)((unsignedlong)fullled_ioremap+0xa4); full_led_addr[1][0] =(unsignedshort *)((unsignedlong)fullled_ioremap+0xa6); full_led_addr[1][1] =(unsignedshort *)((unsignedlong)fullled_ioremap+0xa8); full_led_addr[1][2] =(unsignedshort *)((unsignedlong)fullled_ioremap+0xaa); full_led_addr[2][0] =(unsignedshort *)((unsignedlong)fullled_ioremap+0xb0); full_led_addr[2][1] =(unsignedshort *)((unsignedlong)fullled_ioremap+0xb2); full_led_addr[2][2] =(unsignedshort *)((unsignedlong)fullled_ioremap+0xb4); full_led_addr[3][0] =(unsignedshort *)((unsignedlong)fullled_ioremap+0xb6); full_led_addr[3][1] =(unsignedshort *)((unsignedlong)fullled_ioremap+0xb8); full_led_addr[3][2] =(unsignedshort *)((unsignedlong)fullled_ioremap+0xba); fullled_usage = 1; return 0; }

  8. Full Color LED 디바이스 드라이버(4) • 드라이버 소스 코드 (fullcolorled.c) intfullled_release(structinode *minode, struct file *mfile) { iounmap(fullled_ioremap); release_mem_region((unsignedlong)fullled_ioremap, FULLCOLORLED_ADDRESS_RANGE); fullled_usage = 0; return 0; } staticintfullled_ioctl(struct file *file, unsignedintcmd,unsignedlongarg) { switch(cmd) { caseFULL_LED1: led_num= 0; break; case FULL_LED2: led_num = 1; break; case FULL_LED3: led_num = 2; break; case FULL_LED4: led_num = 3; break; case ALL_LED: led_num = 4; break; } return 0; }

  9. Full Color LED 디바이스 드라이버(5) • 드라이버 소스 코드 (fullcolorled.c) ssize_tfullled_write(struct file *inode, constchar *gdata, size_t length, loff_t *off_what) { intret,i=0,j=0; unsignedcharbuf[3]; ret = copy_from_user(buf,gdata,length); for(j=0;j<3;j++) { if(buf[j]%0x10 >= 0xA) buf[j]+=0x06; if(buf[j]%0x100 >= 0xA0) buf[j]+=0x60; } if(led_num != 4) { for(j=0;j<3;j++) { *full_led_addr[led_num][j] = buf[j]; } } else { for(i=0;i<4;i++) { for(j=0;j<3;j++) { *full_led_addr[i][j] = buf[j]; } } } return length; }

  10. Full Color LED 디바이스 드라이버(6) • 드라이버 소스 코드 (fullcolorled.c) structfile_operationsfullled_fops = { .owner = THIS_MODULE, .write = fullled_write, .open = fullled_open, .release = fullled_release, .unlocked_ioctl = fullled_ioctl, }; staticstructmiscdevicefullled_driver = { .fops = &fullled_fops, .name = FULLCOLORLED_NAME, .minor = MISC_DYNAMIC_MINOR, }; intfullled_init(void) { printk("driver: %s DRIVER INIT\n",FULLCOLORLED_NAME); returnmisc_register(&fullled_driver); } voidfullled_exit(void) { misc_deregister(&fullled_driver); printk("driver: %s DRIVER EXIT\n",FULLCOLORLED_NAME); } module_init(fullled_init); module_exit(fullled_exit); MODULE_AUTHOR(DRIVER_AUTHOR); MODULE_DESCRIPTION(DRIVER_DESC); MODULE_LICENSE("Dual BSD/GPL");

  11. Full Color LED JNI 라이브러리 작성 (1) • Full Color LED 드라이버를 안드로이드앱에서 사용하기 위해서는 JNI 인터페이스 라이브러리가 필요 • 이 라이브러리는 구글의 NDK를 이용하여 빌드

  12. Full Color LED JNI 라이브러리 작성 (2) • JNI 프로그램 소스 • fullcolorled.c #include<string.h> #include<jni.h> #include<stdio.h> #include<stdlib.h> #include<fcntl.h> #include<unistd.h> #include<termios.h> #include<sys/mman.h> #include<errno.h> jintJava_package_fullLed_FullLedActivity_FLEDControl(JNIEnv* env, jobjectthiz, jintled_num, jint val1, jint val2, jint val3) { intfd,ret; charbuf[3]; fd = open("/dev/fullcolorled",O_WRONLY); if (fd < 0) { return -errno; } ret = (int)led_num; switch(ret) { case FULL_LED1: ioctl(fd,FULL_LED1); break; case FULL_LED2: ioctl(fd,FULL_LED2); break; case FULL_LED3: ioctl(fd,FULL_LED3); break; case FULL_LED4: ioctl(fd,FULL_LED4); break; case ALL_LED: ioctl(fd,ALL_LED); break; } buf[0] = val1; buf[1] = val2; buf[2] = val3; write(fd,buf,3); close(fd); return ret; } #define FULL_LED1 9 #define FULL_LED2 8 #define FULL_LED3 7 #define FULL_LED4 6 #define ALL_LED 5 jint: 함수의 리턴 타입 package_fullLed: 안드로이드앱의package 이름 FullLedActivity: 안드로이드앱의Activity 이름 FLEDControl: 안드로이드앱에서 사용할 함수 이름

  13. Full Color LED JNI 라이브러리 작성 (3) • 안드로이드용Makefile인Android.mk작성하기 • Android.mk (1) 컴파일의 결과물로서 생성되는라이브러리 이름이며, NDK에서는이 이름앞에 lib가 추가되고, 뒤에 .so가 붙어libfullcolorled.so라는 파일이 만들어짐 (2) 컴파일 할 소스 파일의 이름 (3) Shared Library 용으로 빌드한다는표시로서확장자.so 가붙음

  14. Full Color LED 안드로이드App 구현 (1) • Application name • FullLed • Project Name • FullLed • Package name • {name}. fullLed • Activity name • FullLedActivity • Layout name • main

  15. Full Color LED 안드로이드App 구현 (2) AndroidManifest.xml <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="moriya.fullLed" android:versionCode="1" android:versionName="1.0" > <uses-sdk android:minSdkVersion="10" /> <application android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:theme="@style/AppTheme" > <activity android:name=".FullLedActivity" android:label="@string/title_activity_full_led" android:screenOrientation="landscape" > <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> </manifest>

  16. Full Color LED 안드로이드App 구현 (3) main.xml (1) <?xml version="1.0" encoding="utf-8"?> <LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:background="@drawable/bgimage" android:orientation="vertical" android:padding="10dip" > <RadioGroup android:id="@+id/fcl_LedGroup" android:layout_width="wrap_content" android:layout_height="wrap_content" android:checkedButton="@+id/fcl_ledbut1" android:orientation="horizontal" > <RadioButton android:id="@+id/fcl_ledbut1" android:layout_margin="3px" android:checked="true" android:gravity="right|center_vertical" android:text="LED1" android:textColor="@drawable/GRAY" /> <RadioButton android:id="@+id/fcl_ledbut2" android:layout_margin="3px" android:checked="false" android:gravity="right|center_vertical" android:text="LED2" android:textColor="@drawable/GRAY" /> • <RadioButton • android:id="@+id/fcl_ledbut3" • android:layout_margin="3px" • android:checked="false" • android:gravity="right|center_vertical" • android:text="LED3" • android:textColor="@drawable/GRAY" /> • <RadioButton • android:id="@+id/fcl_ledbut4" • android:layout_margin="3px" • android:checked="false" • android:gravity="right|center_vertical" • android:text="LED4" • android:textColor="@drawable/GRAY" /> • <RadioButton • android:id="@+id/fcl_ledbut5" • android:layout_margin="3px" • android:checked="false" • android:gravity="right|center_vertical" • android:text="All" • android:textColor="@drawable/GRAY" /> • </RadioGroup>

  17. Full Color LED 안드로이드App 구현 (4) main.xml (2) • <RadioButton • android:id="@+id/fcl_green" • android:layout_margin="5px" • android:checked="false" • android:gravity="right|center_vertical" • android:text="Green" • android:textColor="@drawable/GREEN" /> • <RadioButton • android:id="@+id/fcl_random" • android:layout_margin="5px" • android:checked="false" • android:gravity="right|center_vertical" • android:text="Random" • android:textColor="@drawable/GRAY" /> • <RadioButton • android:id="@+id/fcl_off" • android:layout_margin="5px" • android:checked="true" • android:gravity="right|center_vertical" • android:text="Off" • android:textColor="@drawable/GRAY" /> • </RadioGroup> <RadioGroup android:id="@+id/fcl_ColorGruop" android:layout_width="wrap_content" android:layout_height="wrap_content" android:baselineAligned="true" android:checkedButton="@+id/fcl_red" android:orientation="horizontal" > <RadioButton android:id="@+id/fcl_red" android:layout_margin="5px" android:checked="false" android:gravity="center|center_vertical" android:text="Red" android:textColor="@drawable/RED" /> <RadioButton android:id="@+id/fcl_blue" android:layout_margin="5px" android:checked="false" android:gravity="right|center_vertical" android:text="Blue" android:textColor="@drawable/BLUE" />

  18. Full Color LED 안드로이드App 구현 (5) main.xml (3) <SeekBar android:id="@+id/fcl_seekBar_red" android:layout_width="400dip" android:layout_height="wrap_content" android:layout_marginTop="10px" android:max="100" /> <SeekBar android:id="@+id/fcl_seekBar_green" android:layout_width="400dip" android:layout_height="wrap_content" android:layout_marginTop="10px" android:max="100" /> <SeekBar android:id="@+id/fcl_seekBar_blue" android:layout_width="400dip" android:layout_height="wrap_content" android:layout_marginTop="10px" android:max="100" /> </LinearLayout>

  19. Full Color LED 안드로이드App 구현 (6) color.xml : ‘res/values’ 에 추가 <?xml version="1.0" encoding="utf-8"?> <resources> <drawablename="RED">#ff0000</drawable> <drawablename="BLUE">#0000ff</drawable> <drawablename="GREEN">#008000</drawable> <drawablename="YELLOW">#ffff00</drawable> <drawablename="GRAY">#808080</drawable> <drawablename="screen_background_black">#ff000000</drawable> <drawablename="translucent_background">#e0000000</drawable> <drawablename="transparent_background">#00000000</drawable> <color name="solid_red">#f00</color> <color name="solid_blue">#0000ff</color> <color name="solid_green">#f0f0</color> <color name="solid_yellow">#ffffff00</color> <drawablename="BLACK">#000000</drawable> <drawablename="WHITE">#ffffffff</drawable> </resources>

  20. Full Color LED 안드로이드 App 구현 (7) FullLedActivity.java (1) package moriya.fullLed; import android.app.Activity; import android.graphics.Color; import android.os.Bundle; import android.view.View; import android.widget.RadioButton; import android.widget.SeekBar; public class FullLedActivity extends Activity { static { System.loadLibrary("fullcolorled"); } public native intFLEDControl(intled_num, int val1, int val2, int val3); static SeekBar[] sb; static int temp; int[] led_val; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); led_val = new int[4]; led_val[0] = 9; for (inti = 1; i < 4; i++) { led_val[i] = 0; }

  21. Full Color LED 안드로이드 App 구현 (8) FullLedActivity.java (2) findViewById(R.id.fcl_ledbut1).setOnClickListener(mLedButtonListener); findViewById(R.id.fcl_ledbut2).setOnClickListener(mLedButtonListener); findViewById(R.id.fcl_ledbut3).setOnClickListener(mLedButtonListener); findViewById(R.id.fcl_ledbut4).setOnClickListener(mLedButtonListener); findViewById(R.id.fcl_ledbut5).setOnClickListener(mLedButtonListener); findViewById(R.id.fcl_red).setOnClickListener(mColorButtonListener); findViewById(R.id.fcl_green).setOnClickListener(mColorButtonListener); findViewById(R.id.fcl_blue).setOnClickListener(mColorButtonListener); findViewById(R.id.fcl_random).setOnClickListener(mColorButtonListener); findViewById(R.id.fcl_off).setOnClickListener(mColorButtonListener); // sb = new SeekBar[3]; sb[0] = (SeekBar) findViewById(R.id.fcl_seekBar_red); sb[1] = (SeekBar) findViewById(R.id.fcl_seekBar_green); sb[2] = (SeekBar) findViewById(R.id.fcl_seekBar_blue); sb[0].setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() { public void onStopTrackingTouch(SeekBar arg0) { // TODO Auto-generated method stub temp = arg0.getProgress(); led_val[1] = temp; FLEDControl(led_val[0], led_val[1], led_val[2], led_val[3]); } public void onStartTrackingTouch(SeekBar arg0) { // TODO Auto-generated method stub temp = arg0.getProgress(); }

  22. Full Color LED 안드로이드 App 구현 (9) FullLedActivity.java (3) public void onProgressChanged(SeekBar arg0, int arg1, boolean arg2) { // TODO Auto-generated method stub temp = arg0.getProgress(); led_val[1] = temp; FLEDControl(led_val[0], led_val[1], led_val[2], led_val[3]); } }); sb[1].setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() { public void onStopTrackingTouch(SeekBar arg0) { // TODO Auto-generated method stub temp = arg0.getProgress(); led_val[2] = temp; FLEDControl(led_val[0], led_val[1], led_val[2], led_val[3]); } public void onStartTrackingTouch(SeekBar arg0) { // TODO Auto-generated method stub temp = arg0.getProgress(); } public void onProgressChanged(SeekBar arg0, int arg1, boolean arg2) { // TODO Auto-generated method stub temp = arg0.getProgress(); led_val[2] = temp; FLEDControl(led_val[0], led_val[1], led_val[2], led_val[3]); } });

  23. Full Color LED 안드로이드 App 구현 (10) FullLedActivity.java (4) sb[2].setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() { public void onStopTrackingTouch(SeekBar arg0) { // TODO Auto-generated method stub temp = arg0.getProgress(); led_val[3] = temp; FLEDControl(led_val[0], led_val[1], led_val[2], led_val[3]); } public void onStartTrackingTouch(SeekBar arg0) { // TODO Auto-generated method stub temp = arg0.getProgress(); } public void onProgressChanged(SeekBar arg0, int arg1, boolean arg2) { // TODO Auto-generated method stub temp = arg0.getProgress(); led_val[3] = temp; FLEDControl(led_val[0], led_val[1], led_val[2], led_val[3]); } }); } RadioButton.OnClickListenermLedButtonListener = new RadioButton.OnClickListener() { public void onClick(View v) { switch (v.getId()) { case R.id.fcl_ledbut1: led_val[0] = 9; break; case R.id.fcl_ledbut2: led_val[0] = 8; break; case R.id.fcl_ledbut3: led_val[0] = 7; break; case R.id.fcl_ledbut4: led_val[0] = 6; break; case R.id.fcl_ledbut5: led_val[0] = 5; break; }

  24. Full Color LED 안드로이드 App 구현 (11) FullLedActivity.java (5) led_val[1] = sb[0].getProgress(); led_val[2] = sb[1].getProgress(); led_val[3] = sb[2].getProgress(); FLEDControl(led_val[0], led_val[1], led_val[2], led_val[3]); } }; RadioButton.OnClickListenermColorButtonListener = new RadioButton.OnClickListener() { public void onClick(View v) { switch (v.getId()) { case R.id.fcl_red: led_val[1] = 100; led_val[2] = 0; led_val[3] = 0; break; case R.id.fcl_green: led_val[1] = 0; led_val[2] = 0; led_val[3] = 100; break; case R.id.fcl_blue: led_val[1] = 0; led_val[2] = 100; led_val[3] = 0; break; case R.id.fcl_random: led_val[1] = (int) (Math.random() * 101); led_val[2] = (int) (Math.random() * 101); led_val[3] = (int) (Math.random() * 101); break; case R.id.fcl_off: led_val[1] = 0; led_val[2] = 0; led_val[3] = 0; break; }

  25. Full Color LED 안드로이드 App 구현 (12) FullLedActivity.java (6) FLEDControl(led_val[0], led_val[1], led_val[2], led_val[3]); sb[0].setProgress(led_val[1]); sb[1].setProgress(led_val[2]); sb[2].setProgress(led_val[3]); } }; }

  26. JNI 라이브러리 빌드 • 빌드 순서 • JNI 소스인fullcolorled.c와 Android.mk 파일을프로젝트의jni폴더에 추가 • “윈도키+r”을 입력하여 실행창을 오픈한 다음, “cmd”를 입력하여 커맨드 창을 오픈함 • 안드로이드App 프로젝트가 있는 폴더로 이동 • 빌드 명령을 실행 • 빌드를 위해 프로젝트 폴더에 아래와 같은 명령어를 입력 > /EmbeddedSystem/Android/ndk/ndk-build • 빌드가성공하면,libfullcolorled.so 파일이 생성된 것을 확인

  27. 결과(에뮬레이터)

  28. 결과(타겟보드)

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