Diff: i2c.cpp

Revision:

2:cd8e210049b9

Parent:

1:8465801be23f

--- a/i2c.cpp	Fri Nov 19 16:24:46 2010 +0000
+++ b/i2c.cpp	Mon Mar 04 19:11:37 2013 +0000
@@ -27,127 +27,127 @@
 #include "i2c.hpp"
 
 namespace SHTx {
-	I2C::I2C(PinName sda, PinName scl) :
-	scl_pin(scl), sda_pin(sda), frequency(10) {
-		this->sda_pin.output();
-		this->scl_pin.output();
-	}
+    I2C::I2C(PinName sda, PinName scl) :
+    scl_pin(scl), sda_pin(sda), frequency(10) {
+        this->sda_pin.output();
+        this->scl_pin.output();
+    }
 
-	void
-	I2C::setFrequency(uint32_t hz) {
-		this->frequency = (1000000 / hz);
-	}
+    void
+    I2C::setFrequency(uint32_t hz) {
+        this->frequency = (1000000 / hz);
+    }
 
-	void
-	I2C::start(void) {
-	    this->output();
-		this->sda(1);
-		this->scl(1);
-		this->sda(0);
-		this->scl(0);
-		this->scl(1);
-		this->sda(1);
-		this->scl(0);
-	}
+    void
+    I2C::start(void) {
+        this->output();
+        this->sda(1);
+        this->scl(1);
+        this->sda(0);
+        this->scl(0);
+        this->scl(1);
+        this->sda(1);
+        this->scl(0);
+    }
 
-	void
-	I2C::stop(void) {
-	    this->output();
-		this->sda(0);
-		this->scl(1);
-		this->sda(1);
-	}
+    void
+    I2C::stop(void) {
+        this->output();
+        this->sda(0);
+        this->scl(1);
+        this->sda(1);
+    }
 
-	bool
-	I2C::wait(void) {
-		bool ack = false;
-	
-		this->input();
-		for (uint8_t i = 0; i < 500 && !ack; i++) {
-			wait_ms(1);
-			ack = !this->sda_pin;
-		}
-	
-		return ack;
-	}
-	
-	void
-	I2C::reset(void) {
-		this->output();
-		for (uint8_t i = 9; i; i--) {
-			this->shift_out(1);
-		}
-		this->start();
-		this->scl(1);
-	}
+    bool
+    I2C::wait(void) {
+        bool ack = false;
+    
+        this->input();
+        for (uint8_t i = 0; i < 500 && !ack; i++) {
+            wait_ms(1);
+            ack = !this->sda_pin;
+        }
+    
+        return ack;
+    }
+    
+    void
+    I2C::reset(void) {
+        this->output();
+        for (uint8_t i = 9; i; i--) {
+            this->shift_out(1);
+        }
+        this->start();
+        this->scl(1);
+    }
 
-	bool
-	I2C::write(uint8_t data) {
-	    bool ack;
+    bool
+    I2C::write(uint8_t data) {
+        bool ack;
 
-	    this->output();
-		for (uint8_t i = 8; i; i--) {
-		    this->shift_out(data & 0x80);
-		    data <<= 1;
-		}
+        this->output();
+        for (uint8_t i = 8; i; i--) {
+            this->shift_out(data & 0x80);
+            data <<= 1;
+        }
     
-	    this->input();
-	    ack = !this->shift_in();
+        this->input();
+        ack = !this->shift_in();
     
-		return ack;
-	}
+        return ack;
+    }
 
-	uint8_t
-	I2C::read(bool ack) {
-		uint8_t data = 0;
-	
-	    this->input();
-		for (uint8_t i = 8; i; i--) {
-		    data <<= 1;
-			data  |= this->shift_in();
-		}
-	
-	    this->output();
-		this->shift_out(!ack);
-	
-		return data;
-	}
+    uint8_t
+    I2C::read(bool ack) {
+        uint8_t data = 0;
+    
+        this->input();
+        for (uint8_t i = 8; i; i--) {
+            data <<= 1;
+            data  |= this->shift_in();
+        }
+    
+        this->output();
+        this->shift_out(!ack);
+    
+        return data;
+    }
 
-	void
-	I2C::output(void) {
-		this->sda_pin.output();
-	}
+    void
+    I2C::output(void) {
+        this->sda_pin.output();
+    }
 
-	void
-	I2C::input(void) {
-		this->sda_pin.input();
-	}
+    void
+    I2C::input(void) {
+        this->sda_pin.input();
+    }
 
-	void
-	I2C::sda(bool value) {
-		this->sda_pin = value;
-		wait_us(this->frequency);
-	}
+    void
+    I2C::sda(bool value) {
+        this->sda_pin = value;
+        wait_us(this->frequency);
+    }
 
-	void
-	I2C::scl(bool value) {
-		this->scl_pin = value;
-		wait_us(this->frequency);
-	}
+    void
+    I2C::scl(bool value) {
+        this->scl_pin = value;
+        wait_us(this->frequency);
+    }
 
-	void
-	I2C::shift_out(bool bit) {
-	    this->sda(bit);
-		this->scl(1);
-		this->scl(0);
-	}
+    void
+    I2C::shift_out(bool bit) {
+        this->sda(bit);
+        this->scl(1);
+        this->scl(0);
+    }
 
-	bool
-	I2C::shift_in(void) {
-	    wait_us(this->frequency);
-		this->scl(1);
-		bool bit = this->sda_pin;
-		this->scl(0);
-		return bit;
-	}
+    bool
+    I2C::shift_in(void) {
+        wait_us(this->frequency);
+        this->scl(1);
+        bool bit = this->sda_pin;
+        this->scl(0);
+        return bit;
+    }
 }
\ No newline at end of file