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1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Copyright (C) Intel 2011
5 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
7 * The PTI (Parallel Trace Interface) driver directs trace data routed from
8 * various parts in the system out through the Intel Penwell PTI port and
9 * out of the mobile device for analysis with a debugging tool
10 * (Lauterbach, Fido). This is part of a solution for the MIPI P1149.7,
11 * compact JTAG, standard.
13 * This header file will allow other parts of the OS to use the
14 * interface to write out it's contents for debugging a mobile system.
17 #ifndef LINUX_INTEL_PTI_H_
18 #define LINUX_INTEL_PTI_H_
20 /* offset for last dword of any PTI message. Part of MIPI P1149.7 */
21 #define PTI_LASTDWORD_DTS 0x30
23 /* basic structure used as a write address to the PTI HW */
24 struct pti_masterchannel
{
29 /* the following functions are defined in misc/pti.c */
30 void pti_writedata(struct pti_masterchannel
*mc
, u8
*buf
, int count
);
31 struct pti_masterchannel
*pti_request_masterchannel(u8 type
,
32 const char *thread_name
);
33 void pti_release_masterchannel(struct pti_masterchannel
*mc
);
35 #endif /* LINUX_INTEL_PTI_H_ */