drivers/tty/n_tracesink.h

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  *  n_tracesink.h - Kernel driver API to route trace data in kernel space.
   4  *
   5  *  Copyright (C) Intel 2011
   6  *
   7  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   8  *
   9  *  This program is free software; you can redistribute it and/or modify
  10  *  it under the terms of the GNU General Public License version 2
  11  *  as published by the Free Software Foundation.
  12  *
  13  *  This program is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *  GNU General Public License for more details.
  17  *
  18  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  19  *
  20  * The PTI (Parallel Trace Interface) driver directs trace data routed from
  21  * various parts in the system out through the Intel Penwell PTI port and
  22  * out of the mobile device for analysis with a debugging tool
  23  * (Lauterbach, Fido). This is part of a solution for the MIPI P1149.7,
  24  * compact JTAG, standard.
  25  *
  26  * This header file is used by n_tracerouter to be able to send the
  27  * data of it's tty port to the tty port this module sits.  This
  28  * mechanism can also be used independent of the PTI module.
  29  *
  30  */
  31
  32 #ifndef N_TRACESINK_H_
  33 #define N_TRACESINK_H_
  34
  35 void n_tracesink_datadrain(u8 *buf, int count);
  36
  37 #endif