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Diff: I2C.h
- Revision:
- 44:24d45a770a51
- Parent:
- 43:e2ed12d17f06
- Child:
- 54:71b101360fb9
--- a/I2C.h Fri Oct 26 17:40:46 2012 +0100
+++ b/I2C.h Wed Nov 21 10:49:56 2012 +0000
@@ -1,18 +1,32 @@
-/* mbed Microcontroller Library - I2C
- * Copyright (c) 2007-2011 ARM Limited. All rights reserved.
- */
-
+/* mbed Microcontroller Library
+ * Copyright (c) 2006-2012 ARM Limited
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
#ifndef MBED_I2C_H
#define MBED_I2C_H
-#include "device.h"
+#include "platform.h"
#if DEVICE_I2C
-#include "platform.h"
-#include "PinNames.h"
-#include "PeripheralNames.h"
-#include "Base.h"
+#include "i2c_api.h"
namespace mbed {
@@ -33,20 +47,19 @@
* }
* @endcode
*/
-class I2C : public Base {
+class I2C {
public:
-
enum RxStatus {
- NoData
- , MasterGeneralCall
- , MasterWrite
- , MasterRead
+ NoData,
+ MasterGeneralCall,
+ MasterWrite,
+ MasterRead
};
enum Acknowledge {
- NoACK = 0
- , ACK = 1
+ NoACK = 0,
+ ACK = 1
};
/** Create an I2C Master interface, connected to the specified pins
@@ -54,7 +67,7 @@
* @param sda I2C data line pin
* @param scl I2C clock line pin
*/
- I2C(PinName sda, PinName scl, const char *name = NULL);
+ I2C(PinName sda, PinName scl);
/** Set the frequency of the I2C interface
*
@@ -64,8 +77,8 @@
/** Read from an I2C slave
*
- * Performs a complete read transaction. The bottom bit of
- * the address is forced to 1 to indicate a read.
+ * Performs a complete read transaction. The bottom bit of
+ * the address is forced to 1 to indicate a read.
*
* @param address 8-bit I2C slave address [ addr | 1 ]
* @param data Pointer to the byte-array to read data in to
@@ -76,7 +89,7 @@
* 0 on success (ack),
* non-0 on failure (nack)
*/
- int read(int address, char *data, int length, bool repeated = false);
+ int read(int address, char *data, int length, bool repeated = false);
/** Read a single byte from the I2C bus
*
@@ -89,8 +102,8 @@
/** Write to an I2C slave
*
- * Performs a complete write transaction. The bottom bit of
- * the address is forced to 0 to indicate a write.
+ * Performs a complete write transaction. The bottom bit of
+ * the address is forced to 0 to indicate a write.
*
* @param address 8-bit I2C slave address [ addr | 0 ]
* @param data Pointer to the byte-array data to send
@@ -115,6 +128,7 @@
/** Creates a start condition on the I2C bus
*/
+
void start(void);
/** Creates a stop condition on the I2C bus
@@ -122,13 +136,11 @@
void stop(void);
protected:
-
void aquire();
-
- I2CName _i2c;
+
+ i2c_t _i2c;
static I2C *_owner;
int _hz;
-
};
} // namespace mbed
@@ -136,4 +148,3 @@
#endif
#endif
-
