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1802d0be | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
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2 | /* |
3 | * Copyright (C) Intel 2011 | |
4 | * | |
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5 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
6 | * | |
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. | |
12 | * | |
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. | |
15 | */ | |
16 | ||
1784f914 IM |
17 | #ifndef LINUX_INTEL_PTI_H_ |
18 | #define LINUX_INTEL_PTI_H_ | |
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19 | |
20 | /* offset for last dword of any PTI message. Part of MIPI P1149.7 */ | |
21 | #define PTI_LASTDWORD_DTS 0x30 | |
22 | ||
23 | /* basic structure used as a write address to the PTI HW */ | |
24 | struct pti_masterchannel { | |
25 | u8 master; | |
26 | u8 channel; | |
27 | }; | |
28 | ||
29 | /* the following functions are defined in misc/pti.c */ | |
30 | void pti_writedata(struct pti_masterchannel *mc, u8 *buf, int count); | |
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31 | struct pti_masterchannel *pti_request_masterchannel(u8 type, |
32 | const char *thread_name); | |
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33 | void pti_release_masterchannel(struct pti_masterchannel *mc); |
34 | ||
1784f914 | 35 | #endif /* LINUX_INTEL_PTI_H_ */ |