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TOMOYO Linux Cross Reference
Linux/include/linux/pti.h

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  1 /*
  2  *  Copyright (C) Intel 2011
  3  *
  4  * This program is free software; you can redistribute it and/or modify
  5  * it under the terms of the GNU General Public License version 2 as
  6  * published by the Free Software Foundation.
  7  *
  8  * This program is distributed in the hope that it will be useful,
  9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
 10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 11  * GNU General Public License for more details.
 12  *
 13  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 14  *
 15  * The PTI (Parallel Trace Interface) driver directs trace data routed from
 16  * various parts in the system out through the Intel Penwell PTI port and
 17  * out of the mobile device for analysis with a debugging tool
 18  * (Lauterbach, Fido). This is part of a solution for the MIPI P1149.7,
 19  * compact JTAG, standard.
 20  *
 21  * This header file will allow other parts of the OS to use the
 22  * interface to write out it's contents for debugging a mobile system.
 23  */
 24 
 25 #ifndef PTI_H_
 26 #define PTI_H_
 27 
 28 /* offset for last dword of any PTI message. Part of MIPI P1149.7 */
 29 #define PTI_LASTDWORD_DTS       0x30
 30 
 31 /* basic structure used as a write address to the PTI HW */
 32 struct pti_masterchannel {
 33         u8 master;
 34         u8 channel;
 35 };
 36 
 37 /* the following functions are defined in misc/pti.c */
 38 void pti_writedata(struct pti_masterchannel *mc, u8 *buf, int count);
 39 struct pti_masterchannel *pti_request_masterchannel(u8 type,
 40                                                     const char *thread_name);
 41 void pti_release_masterchannel(struct pti_masterchannel *mc);
 42 
 43 #endif /*PTI_H_*/
 44 

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