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////////////////////////////////////////////////////////////////////////////////
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//
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// Filename: usbi.h
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//
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// Project: XuLA2 board
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//
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// Purpose: This package attempts to convet a JTAG over USB based
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// communication system into something similar to a serial port
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// based communication system. Some differences include the fact that,
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// if the USB port isn't polled, nothing comes out of the port. Hence,
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// on connecting (or polling for the first time) ... there might be a
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// bunch of stuff to (initially) ignore.
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//
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//
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// Creator: Dan Gisselquist, Ph.D.
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// Gisselquist Technology, LLC
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//
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////////////////////////////////////////////////////////////////////////////////
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//
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// Copyright (C) 2015, Gisselquist Technology, LLC
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//
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// This program is free software (firmware): you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as published
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// by the Free Software Foundation, either version 3 of the License, or (at
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// your option) any later version.
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//
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// This program is distributed in the hope that it will be useful, but WITHOUT
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// ANY WARRANTY; without even the implied warranty of MERCHANTIBILITY or
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// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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// for more details.
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//
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// License: GPL, v3, as defined and found on www.gnu.org,
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// http://www.gnu.org/licenses/gpl.html
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//
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//
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////////////////////////////////////////////////////////////////////////////////
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//
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//
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#ifndef USBI_H
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#ifndef USBI_H
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#define USBI_H
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#define USBI_H
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#include <libusb.h>
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#include <libusb.h>
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#define VENDOR_ID 0x04d8
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#define VENDOR_ID 0x04d8
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#define PRODUCT_ID 0x0ff8c
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#define PRODUCT_ID 0x0ff8c
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#define XESS_INTERFACE 0
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#define XESS_INTERFACE 0
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#define XESS_ENDPOINT_OUT 0x01
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#define XESS_ENDPOINT_OUT 0x01
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#define XESS_ENDPOINT_IN 0x81
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#define XESS_ENDPOINT_IN 0x81
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#define XESS_ENDPOINT_IN 0x81
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#define XESS_ENDPOINT_IN 0x81
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//
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//
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#define JTAG_CMD 0x4f
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#define JTAG_CMD 0x4f
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#define GET_TDO_MASK 0x01
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#define GET_TDO_MASK 0x01
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#define PUT_TMS_MASK 0x02
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#define PUT_TMS_MASK 0x02
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#define TMS_VAL_MASK 0x04
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#define TMS_VAL_MASK 0x04
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#define PUT_TDI_MASK 0x08
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#define PUT_TDI_MASK 0x08
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#define TDI_VAL_MASK 0x10
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#define TDI_VAL_MASK 0x10
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//
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//
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// #define USER1_INSTR 0x02 // a SIX bit two
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// #define USER1_INSTR 0x02 // a SIX bit two
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#define USB_PKTLEN 32
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#define USB_PKTLEN 32
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#define RCV_BUFLEN 512
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#define RCV_BUFLEN 512
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#define RCV_BUFMASK (RCV_BUFLEN-1)
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#define RCV_BUFMASK (RCV_BUFLEN-1)
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#include "llcomms.h"
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#include "llcomms.h"
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class USBI : public LLCOMMSI { // USB Interface
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class USBI : public LLCOMMSI { // USB Interface
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private:
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private:
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char m_rbuf[RCV_BUFLEN];
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char m_rbuf[RCV_BUFLEN];
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char m_txbuf[2*USB_PKTLEN], m_rxbuf[2*USB_PKTLEN];
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char m_txbuf[2*USB_PKTLEN], m_rxbuf[2*USB_PKTLEN];
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int m_rbeg, m_rend;
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int m_rbeg, m_rend;
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libusb_context *m_usb_context;
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libusb_context *m_usb_context;
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libusb_device **m_usb_dev_list;
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libusb_device **m_usb_dev_list;
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libusb_device_handle *m_xula_usb_device;
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libusb_device_handle *m_xula_usb_device;
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virtual int pop_fifo(char *buf, int len);
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virtual int pop_fifo(char *buf, int len);
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virtual void push_fifo(char *buf, int len);
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virtual void push_fifo(char *buf, int len);
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virtual void raw_read(int len, int timeout_ms);
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virtual void raw_read(int len, int timeout_ms);
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virtual void flush_read(void);
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virtual void flush_read(void);
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public:
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public:
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USBI(void);
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USBI(void);
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virtual void close(void);
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virtual void close(void);
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virtual int read(char *buf, int len);
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virtual int read(char *buf, int len);
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virtual int read(char *buf, int len, int timeout_ms);
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virtual int read(char *buf, int len, int timeout_ms);
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virtual void write(char *buf, int len);
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virtual void write(char *buf, int len);
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virtual bool poll(unsigned ms);
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virtual bool poll(unsigned ms);
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};
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};
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#endif // USBI_H
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#endif // USBI_H
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