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      1 /*
      2  * Copyright 2009-2011 Oleg Mazurov, Circuits At Home, http://www.circuitsathome.com
      3  * MAX3421E USB host controller support
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  * 1. Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  * 2. Redistributions in binary form must reproduce the above copyright
     11  *    notice, this list of conditions and the following disclaimer in the
     12  *    documentation and/or other materials provided with the distribution.
     13  * 3. Neither the name of the authors nor the names of its contributors
     14  *    may be used to endorse or promote products derived from this software
     15  *    without specific prior written permission.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     27  * SUCH DAMAGE.
     28  */
     29 
     30 /* MAX3421E functions */
     31 #ifndef _MAX3421E_H_
     32 #define _MAX3421E_H_
     33 
     34 
     35 //#include <Spi.h>
     36 //#include <WProgram.h>
     37 #include "WProgram.h"
     38 #include "Max3421e_constants.h"
     39 
     40 class MAX3421E /* : public SPI */ {
     41     // byte vbusState;
     42     public:
     43         MAX3421E( void );
     44         byte getVbusState( void );
     45 //        void toggle( byte pin );
     46         static void regWr( byte, byte );
     47         char * bytesWr( byte, byte, char * );
     48         static void gpioWr( byte );
     49         byte regRd( byte );
     50         char * bytesRd( byte, byte, char * );
     51         byte gpioRd( void );
     52         boolean reset();
     53         boolean vbusPwr ( boolean );
     54         void busprobe( void );
     55         void powerOn();
     56         byte IntHandler();
     57         byte GpxHandler();
     58         byte Task();
     59     private:
     60 	static void pinInit(void);
     61 	static void setRST(uint8_t val);
     62 	static uint8_t readINT(void);
     63 	static uint8_t readGPX(void);
     64 
     65       static void spi_init() {
     66         uint8_t tmp;
     67         // initialize SPI pins
     68         pinMode(SCK_PIN, OUTPUT);
     69         pinMode(MOSI_PIN, OUTPUT);
     70         pinMode(MISO_PIN, INPUT);
     71         pinMode(SS_PIN, OUTPUT);
     72         /* mode 00 (CPOL=0, CPHA=0) master, fclk/2. Mode 11 (CPOL=11, CPHA=11) is also supported by MAX3421E */
     73         SPCR = 0x50;
     74         SPSR = 0x01;
     75         /**/
     76         tmp = SPSR;
     77         tmp = SPDR;
     78     }
     79 //        void init();
     80     friend class Max_LCD;
     81 };
     82 
     83 
     84 
     85 
     86 #endif //_MAX3421E_H_
     87