/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (C) Intel 2011
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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 LINUX_INTEL_PTI_H_
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#define LINUX_INTEL_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 /* LINUX_INTEL_PTI_H_ */
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