2 * Copyright (C) Intel 2011
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
13 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
15 * The PTI (Parallel Trace Interface) driver directs trace data routed from
16 * various parts in the system out through the Intel Penwell PTI port and
17 * out of the mobile device for analysis with a debugging tool
18 * (Lauterbach, Fido). This is part of a solution for the MIPI P1149.7,
19 * compact JTAG, standard.
21 * This header file will allow other parts of the OS to use the
22 * interface to write out it's contents for debugging a mobile system.
28 /* offset for last dword of any PTI message. Part of MIPI P1149.7 */
29 #define PTI_LASTDWORD_DTS 0x30
31 /* basic structure used as a write address to the PTI HW */
32 struct pti_masterchannel {
37 /* the following functions are defined in misc/pti.c */
38 void pti_writedata(struct pti_masterchannel *mc, u8 *buf, int count);
39 struct pti_masterchannel *pti_request_masterchannel(u8 type,
40 const char *thread_name);
41 void pti_release_masterchannel(struct pti_masterchannel *mc);