Diff: Gesture.cpp

Revision:

0:726fdf0062c6

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Gesture.cpp	Thu Sep 15 18:07:48 2016 +0000
@@ -0,0 +1,165 @@
+#include "mbed.h"
+#include "PAC7620_30Set.h"
+#include "Gesture.h"
+
+
+
+#define PAC7620_30_ADDR     (0xE6) //PAC7620 address shift 1-bit
+#define I2C_ADDR PAC7620_30_ADDR
+#define PXI_WMI 0x20
+#define ID_7620 0x01
+#define ID_7630 0x00
+#define GestureRegAddrL  0x43
+#define GestureRegAddrH  0x44
+#define DebounceT 300       //debounce time, unit:ms
+
+
+Pixart_Gesture::Pixart_Gesture(I2C *i2c, int Period,GestureCallback callback,bool &Result)
+{    
+    m_i2c = i2c;
+    m_GestureCallback = callback;
+    //m_pc = pc;
+    m_Period = Period;
+    
+    
+    Result=PAC7620_30_init();    
+}
+
+
+
+bool Pixart_Gesture::PAC7620_30_init()
+{   uint8_t q;
+
+    readRegister(0x00);
+    wait_ms(50);
+
+    if(readRegister(0x00) == PXI_WMI)
+        ;//m_pc->printf("I2C Link Successful!\n\r");
+    else{
+        //m_pc->printf(" I2C Link Fail!\n\r");
+        return false;
+    }
+    
+    if(readRegister(0x02) == ID_7620)
+    {
+       // m_pc->printf("PAC7620 detected.\n\r");
+        
+        writeRegister(0xff, 0x00);  //wakeup
+        wait_ms(10);                //make a delay
+        for(q=0;q<INIT_Ges7620_REG_ARRAY_SIZE;q++)
+            writeRegister(init_ges7620_register_array[q][0], init_ges7620_register_array[q][1]);
+        
+        wait_ms(DebounceT);  //debounce, clean data
+        readRegister(GestureRegAddrH); readRegister(GestureRegAddrL);
+        Flag_7630 = 0;
+    }
+    else if(readRegister(0x02) == ID_7630)
+    {
+        //m_pc->printf("PAC7630 detected.\n\r");
+        
+        writeRegister(0xff, 0x00);  //wakeup
+        wait_ms(10);                //make a delay
+        for(q=0;q<INIT_Ges7630_REG_ARRAY_SIZE;q++)
+            writeRegister(init_ges7630_register_array[q][0], init_ges7630_register_array[q][1]);
+        
+        wait_ms(DebounceT);  //debounce, clean data
+        readRegister(GestureRegAddrH); readRegister(GestureRegAddrL);
+        
+        Flag_7630 = 1;
+    }
+    else
+       ;// m_pc->printf("Device not support.\n\r");
+    
+    m_ticker.attach_us(this,&Pixart_Gesture::periodicCallback, m_Period*1000);
+    
+    //m_pc->printf("\n\r~~~Start Real-time Gesture Demo~~~ \n\r");
+    
+    return true;
+}
+
+void Pixart_Gesture::periodicCallback(void)
+{
+     uint16_t gesture_code;
+
+     gesture_code = (readRegister(GestureRegAddrH)<<8) + readRegister(GestureRegAddrL);
+     //pc.printf("Gesture Code: 0x %4X\n\r", gesture_code);
+    //UP,DOWN,LEFT,RIGHT,PUSH,POLL,CLOCKWISE,COUNTER_CLOCKWISE,WAVE};  
+     if(gesture_code != 0) 
+     {            
+         switch (gesture_code) 
+         {
+                case 0x01: // up
+                    if(Flag_7630 == 0)
+                        m_GestureCallback(DOWN);
+                    else
+                        m_GestureCallback(LEFT);
+                        
+                    //m_pc->printf("up 0x%4X\n\r", gesture_code);
+                    break;
+                case 0x02: // down
+                    if(Flag_7630 == 0)
+                        m_GestureCallback(UP);
+                    else
+                        m_GestureCallback(RIGHT);
+                    
+                    //m_pc->printf("down 0x%4X\n\r", gesture_code);
+                    break;
+                case 0x04: // left
+                    if(Flag_7630 == 0)
+                        m_GestureCallback(RIGHT);
+                    else
+                        m_GestureCallback(DOWN);
+                    //m_pc->printf("left 0x%4X\n\r", gesture_code);
+                    break;
+                case 0x08: // right
+                    if(Flag_7630 == 0)
+                        m_GestureCallback(LEFT);
+                    else
+                        m_GestureCallback(UP);
+                    //m_pc->printf("right 0x%4X\n\r", gesture_code);
+                    break;
+                case 0x10: // push
+                    m_GestureCallback(PUSH);
+                    //m_pc->printf("push 0x%4X\n\r", gesture_code);
+                    break;
+                case 0x20: // pop
+                    m_GestureCallback(POLL);
+                    //m_pc->printf("pop 0x%4X\n\r", gesture_code);
+                    break;
+                case 0x40: // rotate right
+                    m_GestureCallback(CLOCKWISE);
+                    //m_pc->printf("rotate right 0x%4X\n\r", gesture_code);
+                    break;
+                case 0x80: // rotate left
+                    m_GestureCallback(COUNTER_CLOCKWISE);
+                    //m_pc->printf("rotate left 0x%4X\n\r", gesture_code);
+                    break;
+                case 0x100:// wave
+                    m_GestureCallback(WAVE);
+                    //m_pc->printf("wave 0x%4X\n\r", gesture_code);
+                    break;
+            }
+            readRegister(GestureRegAddrH); readRegister(GestureRegAddrL);
+    }
+}
+
+
+
+void Pixart_Gesture::writeRegister(uint8_t addr, uint8_t data)
+{
+    char data_write[2];
+    
+    data_write[0] = addr;
+    data_write[1] = data;
+    m_i2c->write(I2C_ADDR, data_write, 2, 0);
+}
+uint8_t Pixart_Gesture::readRegister(uint8_t addr)
+{
+    char data_write[2];
+    char data_read[2];
+    
+    data_write[0] = addr;
+    m_i2c->write(I2C_ADDR, data_write, 1, 0);
+    m_i2c->read(I2C_ADDR, data_read, 1, 0);
+    return data_read[0];
+}
\ No newline at end of file