8168e9c2de
This feature addition provides a new parameter in pti_request_masterchannel() to allow the user to provide their own name to mark the request when the trace is viewed in a PTI SW trace viewer (like MPTA). If a name is not provided and NULL is provided, the 'current' process name is used. API function header documentation documents this. Signed-off-by: Jeremy Rocher <rocher.jeremy@gmail.com> Signed-off-by: J Freyensee <james_p_freyensee@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
43 lines
1.5 KiB
C
43 lines
1.5 KiB
C
/*
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* Copyright (C) Intel 2011
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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*
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* The PTI (Parallel Trace Interface) driver directs trace data routed from
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* various parts in the system out through the Intel Penwell PTI port and
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* out of the mobile device for analysis with a debugging tool
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* (Lauterbach, Fido). This is part of a solution for the MIPI P1149.7,
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* compact JTAG, standard.
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*
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* This header file will allow other parts of the OS to use the
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* interface to write out it's contents for debugging a mobile system.
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*/
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#ifndef PTI_H_
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#define PTI_H_
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/* offset for last dword of any PTI message. Part of MIPI P1149.7 */
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#define PTI_LASTDWORD_DTS 0x30
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/* basic structure used as a write address to the PTI HW */
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struct pti_masterchannel {
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u8 master;
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u8 channel;
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};
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/* the following functions are defined in misc/pti.c */
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void pti_writedata(struct pti_masterchannel *mc, u8 *buf, int count);
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struct pti_masterchannel *pti_request_masterchannel(u8 type,
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const char *thread_name);
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void pti_release_masterchannel(struct pti_masterchannel *mc);
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#endif /*PTI_H_*/
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