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 spi_init()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