src/jtag/drivers/bitq.h

   1 /***************************************************************************
   2  *   Copyright (C) 2007 by Pavel Chromy                                    *
   3  *   chromy@asix.cz                                                        *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program.  If not, see <http://www.gnu.org/licenses/>. *
  17  ***************************************************************************/
  18
  19 #ifndef OPENOCD_JTAG_DRIVERS_BITQ_H
  20 #define OPENOCD_JTAG_DRIVERS_BITQ_H
  21
  22 #include <jtag/commands.h>
  23
  24 struct bitq_interface {
  25         /* function to enqueueing low level IO requests */
  26         int (*out)(int tms, int tdi, int tdo_req);
  27         int (*flush)(void);
  28
  29         int (*sleep)(unsigned long us);
  30         int (*reset)(int trst, int srst);
  31
  32         /* delayed read of requested TDO data,
  33          * the input shall be checked after call to any enqueuing function
  34          */
  35         int (*in_rdy)(void);
  36         int (*in)(void);
  37 };
  38
  39 extern struct bitq_interface *bitq_interface;
  40
  41 int bitq_execute_queue(void);
  42
  43 void bitq_cleanup(void);
  44
  45 #endif /* OPENOCD_JTAG_DRIVERS_BITQ_H */