Erik Gilling | 8a71565 | 2011-03-22 14:00:56 -0700 | [diff] [blame] | 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 | */ |
Joe Fernandez | abc5159 | 2012-05-21 11:49:55 -0700 | [diff] [blame] | 29 | |
| 30 | /* MAX3421E functions */ |
| 31 | #ifndef _MAX3421E_H_ |
| 32 | #define _MAX3421E_H_ |
| 33 | |
| 34 | #include "Arduino.h" |
| 35 | #include "Max3421e_constants.h" |
| 36 | |
| 37 | class MAX3421E /* : public SPI */ { |
| 38 | // byte vbusState; |
| 39 | public: |
| 40 | MAX3421E( void ); |
| 41 | byte getVbusState( void ); |
| 42 | // void toggle( byte pin ); |
| 43 | static void regWr( byte, byte ); |
| 44 | char * bytesWr( byte, byte, char * ); |
| 45 | static void gpioWr( byte ); |
| 46 | byte regRd( byte ); |
| 47 | char * bytesRd( byte, byte, char * ); |
| 48 | byte gpioRd( void ); |
| 49 | boolean reset(); |
| 50 | boolean vbusPwr ( boolean ); |
| 51 | void busprobe( void ); |
| 52 | void powerOn(); |
| 53 | byte IntHandler(); |
| 54 | byte GpxHandler(); |
| 55 | byte Task(); |
| 56 | private: |
| 57 | static void pinInit(void); |
| 58 | static void setRST(uint8_t val); |
| 59 | static uint8_t readINT(void); |
| 60 | static uint8_t readGPX(void); |
| 61 | |
| 62 | static void spi_init() { |
| 63 | uint8_t tmp; |
| 64 | // initialize SPI pins |
| 65 | pinMode(SCK_PIN, OUTPUT); |
| 66 | pinMode(MOSI_PIN, OUTPUT); |
| 67 | pinMode(MISO_PIN, INPUT); |
| 68 | pinMode(SS_PIN, OUTPUT); |
| 69 | /* mode 00 (CPOL=0, CPHA=0) master, fclk/2. Mode 11 (CPOL=11, CPHA=11) is also supported by MAX3421E */ |
| 70 | SPCR = 0x50; |
| 71 | SPSR = 0x01; |
| 72 | /**/ |
| 73 | tmp = SPSR; |
| 74 | tmp = SPDR; |
| 75 | } |
| 76 | // void init(); |
| 77 | friend class Max_LCD; |
| 78 | }; |
| 79 | |
| 80 | |
| 81 | |
| 82 | |
| 83 | #endif //_MAX3421E_H_ |