usbhost.h

00001 /* Copyright (C) 2011 Circuits At Home, LTD. All rights reserved.
00002 
00003 This program is free software; you can redistribute it and/or modify
00004 it under the terms of the GNU General Public License as published by
00005 the Free Software Foundation; either version 2 of the License, or
00006 (at your option) any later version.
00007 
00008 This program is distributed in the hope that it will be useful,
00009 but WITHOUT ANY WARRANTY; without even the implied warranty of
00010 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00011 GNU General Public License for more details.
00012 
00013 You should have received a copy of the GNU General Public License
00014 along with this program; if not, write to the Free Software
00015 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00016 
00017 Contact information
00018 -------------------
00019 
00020 Circuits At Home, LTD
00021 Web      :  http://www.circuitsathome.com
00022 e-mail   :  support@circuitsathome.com
00023  */
00024 /* MAX3421E-based USB Host Library header file */
00025 
00026 //warning
00027 //#define _usb_h_
00028 //#define MBED_H
00029 
00030 #ifndef usbhost_h
00031 #define usbhost_h
00032 
00033 //#define DEBUGMODE
00034 #ifdef DEBUGMODE
00035 #define DEBUG(x, ...) printf("[%s:%d]" x "\n", __PRETTY_FUNCTION__, __LINE__, ##__VA_ARGS__);
00036 #else
00037 #define DEBUG(...) while (0);
00038 #endif
00039 
00040 #if !defined(_usb_h_) // || defined(_USBHOST_H_)
00041 #error "Never include usbhost.h directly; include Usb.h instead"
00042 #else
00043 #define _USBHOST_H_
00044 
00045 #if USING_SPI4TEENSY3
00046 #include <spi4teensy3.h>
00047 #include <sys/types.h>
00048 #endif
00049 
00050 typedef enum
00051 {
00052     vbus_on = 0,
00053     vbus_off = GPX_VBDET
00054 } VBUS_t;
00055 
00056 class MAX3421E : public SPI
00057 {
00058     //static
00059     uint8_t vbusState;
00060 
00061 public:
00062     MAX3421E(PinName mosi, PinName miso, PinName sclk, PinName ssel, PinName intr);
00063     void regWr(uint8_t reg, uint8_t data);
00064     uint8_t *bytesWr(uint8_t reg, uint8_t nbytes, uint8_t *data_p);
00065     void gpioWr(uint8_t data);
00066     uint8_t regRd(uint8_t reg);
00067     uint8_t *bytesRd(uint8_t reg, uint8_t nbytes, uint8_t *data_p);
00068     uint8_t gpioRd();
00069     uint8_t gpioRdOutput();
00070     uint16_t reset();
00071     int8_t Init();
00072     int8_t Init(int mseconds);
00073 
00074     void vbusPower(VBUS_t state)
00075     {
00076         regWr(rPINCTL, (bmFDUPSPI | bmINTLEVEL | state));
00077     }
00078 
00079     uint8_t getVbusState(void)
00080     {
00081         return vbusState;
00082     };
00083     void busprobe();
00084     uint8_t GpxHandler();
00085     uint8_t IntHandler();
00086     uint8_t Task();
00087 
00088 
00089 private:
00090     DigitalOut _ss;
00091     DigitalIn _intr;
00092 
00093 };
00094 
00095 
00096 #endif // _USBHOST_H_
00097 #endif //usbhost_h