Hi Hsiao-Lung Chan, Ph.D. Dept Electrical Engineering Chang Gung University, Taiwan

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1 Lab: LED Control Hi Hsiao-Lung Chan, Ph.D. Dept Electrical Engineering Chang Gung University, Taiwan

2 LED control Controlled by I/O ports of GPJ3_0 and GPJ3_1 Control register: GPJ3CON Data register: GPJ3DAT Pull-up register: GPJ3PUD Lab 2

3 Lab 3

4 Android UI program design Driver Hardware execution (Linux kernel) SO (Shared object) Connect Java-based UI and driver APK (Android application package) User interface (UI) design Lab 4

5 LED driver: led_open static int led_open(struct inode *inode, struct file *filp) { unsigned int val; val = readl(s5pv210_gpj3con); val &= ~ (0xff <<0); val = (1 << 0) (1<<4); writel(val, S5PV210_GPJ3CON); val = readl(s5pv210_gpj3dat); val = ((1 <<0) (1<<1)); writel(val, S5PV210_GPJ3DAT); return 0; Lab 5

6 LED driver: led_iotcl static int led_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) { int ret = 0; int num; switch(cmd) { case LED_ON: ret = copy_from_user(&num, (int *)arg, sizeof(int)); if (ret!= 0) { printk("gpio gpio_ioctl: ioctl: copy_from_user failed\n"); return(-efault); printk("num num = %d\n",num); led_on(num); Lab 6

7 LED driver: led_iotcl case LED_OFF: ret = copy_from_user(&num, (int*)arg, sizeof(int)); if (ret!= 0) { printk("gpio_ioctl: copy_from_user failed\n"); return(-efault); printk("num num = %d\n",num); led_off(num); case LED_TEST: led_test(); return 0; Lab 7

8 LED driver: led_on static void led_on(int led_num) { int gpj3dat; gpj3dat = raw_readl(s5pv210_gpj3dat); switch(led_num) { case 1: //led1 gpj3dat = (1<<0); case 2: default: gpj3dat = (1<<1); raw_writel(gpj3dat,s5pv210_gpj3dat); Lab 8

9 LED driver: led_off static void led_off(int led_num) { int gpj3dat; gpj3dat = raw_readl(s5pv210_gpj3dat); switch(led_num) { case 1://led1 gpj3dat &=~(1<<0); case 2: gpj3dat &=~(1<<1); default: raw_writel(gpj3dat,s5pv210_gpj3dat); Lab 9

10 LED UI Lab 10

11 LED UI using Java package tw.com.damtek; import android.app.activity; import android.os.bundle; import android.view.view; import android.widget.button; public class Led_Control extends Activity { private Button mbutton1; private Button mbutton2; private Button mbutton3; private Button mbutton4; private Button mbutton5; Lab 11

12 LED UI (cont.) public int state1=0,state2=0; public int led_on = 1; public int led_off = 0; public int fd = 0; private Button.OnClickListener button1_listener= new Button.OnClickListener() { public void onclick(view v) { Linuxc.send(1, led_on); ; private Button.OnClickListener button4_listener= new Button.OnClickListener() { public void onclick(view v) { Linuxc.send(1, led_off); ; Lab 12

13 private Button.OnClickListener button5_listener= new Button.OnClickListener() { public void onclick(view v) { Linuxc.send(2, led_off); ; private Button.OnClickListener button2_listener= new Button.OnClickListener(){ public void onclick(view v) { Linuxc.send(2, led_on); ; private Button.OnClickListener button3_listener= new Button.OnClickListener(){ public void onclick(view v) { Linuxc.closeled(); finish(); ; Lab 13

14 @Override public void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); setcontentview(r.layout.main); mbutton1=(button)findviewbyid(r.id.led (Button)findViewById(R.id.led_myButton1); mbutton2 =(Button) findviewbyid(r.id.led_mybutton2); mbutton3 =(Button) findviewbyid(r.id.led_mybutton3); mbutton4 =(Button) findviewbyid(r.id.led_mybutton1_1); id d B 1) mbutton5 =(Button) findviewbyid(r.id.led_mybutton2_1); fd = Linuxc.openled(); if (fd < 0){ settitle("open device false!"); finish(); ] else { settitle( open device success! ); mbutton1.setonclicklistener(button1_listener); mbutton2.setonclicklistener(button2_listener); mbutton3.setonclicklistener(button3_listener); mbutton4.setonclicklistener(button4_listener); listener); mbutton5.setonclicklistener(button5_listener); Lab 14

15 Linuxc.java package tw.com.damtek; import android.util.log; public class Linuxc { static { try { Log.i("JNI", "Trying to load libled.so"); System.loadLibrary("led"); catch (UnsatisfiedLinkError ule) ){ Log.e("JNI", "WARNING: Could not load libled.so"); public static native int openled(); public static native int closeled(); public static native int send(int led_num, int on_off); Lab 15

16 Reference 行動裝置嵌入式系統與軟體 (Cortex A8 S5PV210-Android dod 開發應用實務 ), 長高科技 Lab 16

else if(rb2.ischecked()) {

else if(rb2.ischecked()) { Problem :Toy Calculator Description:Please design an Android application that contains 2 activities: cal_main and cal_result. The following figure is a suggested layout for the cal_main activity. For the