Blame view

kernel/linux-rt-4.4.41/include/linux/pti.h 1.53 KB
5113f6f70   김현기   kernel add
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
  /*
   *  Copyright (C) Intel 2011
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License version 2 as
   * published by the Free Software Foundation.
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   *
   * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   *
   * The PTI (Parallel Trace Interface) driver directs trace data routed from
   * various parts in the system out through the Intel Penwell PTI port and
   * out of the mobile device for analysis with a debugging tool
   * (Lauterbach, Fido). This is part of a solution for the MIPI P1149.7,
   * compact JTAG, standard.
   *
   * This header file will allow other parts of the OS to use the
   * interface to write out it's contents for debugging a mobile system.
   */
  
  #ifndef PTI_H_
  #define PTI_H_
  
  /* offset for last dword of any PTI message. Part of MIPI P1149.7 */
  #define PTI_LASTDWORD_DTS	0x30
  
  /* basic structure used as a write address to the PTI HW */
  struct pti_masterchannel {
  	u8 master;
  	u8 channel;
  };
  
  /* the following functions are defined in misc/pti.c */
  void pti_writedata(struct pti_masterchannel *mc, u8 *buf, int count);
  struct pti_masterchannel *pti_request_masterchannel(u8 type,
  						    const char *thread_name);
  void pti_release_masterchannel(struct pti_masterchannel *mc);
  
  #endif /*PTI_H_*/