| J Freyensee | 0b61d2a | 2011-05-06 16:56:49 -0700 | [diff] [blame] | 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 PTI_H_ |
| 26 | #define 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 | void pti_release_masterchannel(struct pti_masterchannel *mc); |
| 41 | |
| 42 | #endif /*PTI_H_*/ |