1 /* 2 * Copyright (C) Intel 2011 3 * 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. 7 * 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. 12 * 13 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 14 * 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. 20 * 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. 23 */ 24 25 #ifndef LINUX_INTEL_PTI_H_ 26 #define LINUX_INTEL_PTI_H_ 27 28 /* offset for last dword of any PTI message. Part of MIPI P1149.7 */ 29 #define PTI_LASTDWORD_DTS 0x30 30 31 /* basic structure used as a write address to the PTI HW */ 32 struct pti_masterchannel { 33 u8 master; 34 u8 channel; 35 }; 36 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); 42 43 #endif /* LINUX_INTEL_PTI_H_ */ 44
