forked from Minki/linux
0b61d2acb1
The PTI (Parallel Trace Interface) driver directs trace data routed from various parts in the system out through an Intel Penwell PTI port and out of the mobile device for analysis with a debugging tool (Lauterbach or Fido). Though n_tracesink and n_tracerouter line discipline drivers are used to extract modem tracing data to the PTI driver and other parts of an Intel mobile solution, the PTI driver can be used independent of n_tracesink and n_tracerouter. You should select this driver if the target kernel is meant for an Intel Atom (non-netbook) mobile device containing a MIPI P1149.7 standard implementation. 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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void pti_release_masterchannel(struct pti_masterchannel *mc);
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#endif /*PTI_H_*/
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