src/jtag/drivers/bitq.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2
   3 /***************************************************************************
   4  *   Copyright (C) 2007 by Pavel Chromy                                    *
   5  *   chromy@asix.cz                                                        *
   6  ***************************************************************************/
   7
   8 #ifndef OPENOCD_JTAG_DRIVERS_BITQ_H
   9 #define OPENOCD_JTAG_DRIVERS_BITQ_H
  10
  11 #include <jtag/commands.h>
  12
  13 struct bitq_interface {
  14         /* function to enqueueing low level IO requests */
  15         int (*out)(int tms, int tdi, int tdo_req);
  16         int (*flush)(void);
  17
  18         int (*sleep)(unsigned long us);
  19         int (*reset)(int trst, int srst);
  20
  21         /* delayed read of requested TDO data,
  22          * the input shall be checked after call to any enqueuing function
  23          */
  24         int (*in_rdy)(void);
  25         int (*in)(void);
  26 };
  27
  28 extern struct bitq_interface *bitq_interface;
  29
  30 int bitq_execute_queue(void);
  31
  32 void bitq_cleanup(void);
  33
  34 #endif /* OPENOCD_JTAG_DRIVERS_BITQ_H */