xref: /OK3568_Linux_fs/kernel/drivers/tty/n_tracesink.h (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun  *  n_tracesink.h - Kernel driver API to route trace data in kernel space.
4*4882a593Smuzhiyun  *
5*4882a593Smuzhiyun  *  Copyright (C) Intel 2011
6*4882a593Smuzhiyun  *
7*4882a593Smuzhiyun  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
8*4882a593Smuzhiyun  *
9*4882a593Smuzhiyun  * The PTI (Parallel Trace Interface) driver directs trace data routed from
10*4882a593Smuzhiyun  * various parts in the system out through the Intel Penwell PTI port and
11*4882a593Smuzhiyun  * out of the mobile device for analysis with a debugging tool
12*4882a593Smuzhiyun  * (Lauterbach, Fido). This is part of a solution for the MIPI P1149.7,
13*4882a593Smuzhiyun  * compact JTAG, standard.
14*4882a593Smuzhiyun  *
15*4882a593Smuzhiyun  * This header file is used by n_tracerouter to be able to send the
16*4882a593Smuzhiyun  * data of it's tty port to the tty port this module sits.  This
17*4882a593Smuzhiyun  * mechanism can also be used independent of the PTI module.
18*4882a593Smuzhiyun  *
19*4882a593Smuzhiyun  */
20*4882a593Smuzhiyun 
21*4882a593Smuzhiyun #ifndef N_TRACESINK_H_
22*4882a593Smuzhiyun #define N_TRACESINK_H_
23*4882a593Smuzhiyun 
24*4882a593Smuzhiyun void n_tracesink_datadrain(u8 *buf, int count);
25*4882a593Smuzhiyun 
26*4882a593Smuzhiyun #endif
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