File content as of revision 5:62573be585e9:

/* mbed Microcontroller Library - SPI
 * Copyright (c) 2006-2009 ARM Limited. All rights reserved. 
 * sford
 */

#ifndef MBED_SPI_H
#define MBED_SPI_H

#include "Base.h"
#include "LPC2300.h"

namespace mbed {

/* Class: SPI
 *  A SPI Master, used for communicating with SPI slave devices
 *
 * The default format is set to 8-bits, mode 0, and a clock frequency of 1MHz
 *
 * Most SPI devices will also require Chip Select and Reset signals. These
 * can be controlled using <DigitalOut> pins
 *
 * Example:
 * > // Send a byte to a SPI slave, and record the response
 * >
 * > #include "mbed.h"
 * >
 * > SPI device(5, 6, 7); // mosi, miso, sclk
 * >
 * > int main() {
 * >     int response = device.write(0xFF);
 * > }
 */ 
class SPI : public Base {

public:

	/* Constructor: SPI
	 *  Create a SPI master connected to the specified pins
	 *
	 * Variables:
	 *  mosi - SPI Master Out, Slave In pin
	 *  miso - SPI Master In, Slave Out pin
	 *  sclk - SPI Clock pin
     *  name - (optional) A string to identify the object     
     *
	 * Pin Options:
	 *  (5, 6, 7) or (11, 12, 13)
	 *
	 *  mosi and miso can each be specfied as NC (not connected) e.g. (5, NC, 7)
	 */
	SPI(int mosi, int miso, int sclk, const char *name = NULL);
	
	/* Function: format
	 *  Configure the data transmission format
	 *
	 * Variables:
	 *  bits - Number of bits per SPI frame (4 - 16)
	 *  mode - Clock polarity and phase mode (0 - 3)
     *
 	 * > mode | POL PHA 
     * > -----+--------	 
     * >   0  |  0   0 
	 * >   1  |  0   1
     * >   2  |  1   0 
	 * >   3  |  1   1
	 */
	void format(int bits, int mode = 0);

    // old one, to be removed over time...
	void format(int bits, int polarity, int phase) __attribute__((deprecated));
	
	/* Function: frequency
	 *  Set the bus clock frequency
	 *
	 * Variables:
	 *  hz - SCLK frequency in hz (default = 1MHz)
	 */
	void frequency(int hz = 1000000);
	
	/* Function: write
	 *  Write to the SPI Slave and return the response
	 *
     * Variables:
     *  value - Data to be sent to the SPI slave
     *  returns - Response from the SPI slave
	 */
  	int write(int value);

    virtual const struct rpc_method *get_rpc_methods();
    static struct rpc_class *get_rpc_class();

protected:

	void configure();
	
	int _id;

	int _uid;
	static int _uidcounter;
		
	int _bits, _polarity, _phase, _hz;
	static int _config[2];	
};

}

#endif