linux/drivers/tty/n_tracesink.h

/*
 *  n_tracesink.h - Kernel driver API to route trace data in kernel space.
 *
 *  Copyright (C) Intel 2011
 *
 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License version 2
 *  as published by the Free Software Foundation.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 *
 * The PTI (Parallel Trace Interface) driver directs trace data routed from
 * various parts in the system out through the Intel Penwell PTI port and
 * out of the mobile device for analysis with a debugging tool
 * (Lauterbach, Fido). This is part of a solution for the MIPI P1149.7,
 * compact JTAG, standard.
 *
 * This header file is used by n_tracerouter to be able to send the
 * data of it's tty port to the tty port this module sits.  This
 * mechanism can also be used independent of the PTI module.
 *
 */

#ifndef N_TRACESINK_H_
#define N_TRACESINK_H_

void n_tracesink_datadrain(u8 *buf, int count);

#endif
n_tracerouter and n_tracesink ldisc additions. The n_tracerouter and n_tracesink line discpline drivers use the Linux tty line discpline framework to route trace data coming from a tty port (say UART for example) to the trace sink line discipline driver and to another tty port(say USB). Those these two line discipline drivers can be used together, independently from pti.c, they are part of the original implementation solution of the MIPI P1149.7, compact JTAG, PTI solution for Intel mobile platforms starting with the Medfield platform. Signed-off-by: J Freyensee <james_p_freyensee@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> 2011-05-07 07:56:50 +08:00			`/*`
			`* n_tracesink.h - Kernel driver API to route trace data in kernel space.`
			`*`
			`* Copyright (C) Intel 2011`
			`*`
			`* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~`
			`*`
			`* This program is free software; you can redistribute it and/or modify`
			`* it under the terms of the GNU General Public License version 2`
			`* as published by the Free Software Foundation.`
			`*`
			`* This program is distributed in the hope that it will be useful,`
			`* but WITHOUT ANY WARRANTY; without even the implied warranty of`
			`* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the`
			`* GNU General Public License for more details.`
			`*`
			`* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~`
			`*`
			`* The PTI (Parallel Trace Interface) driver directs trace data routed from`
			`* various parts in the system out through the Intel Penwell PTI port and`
			`* out of the mobile device for analysis with a debugging tool`
			`* (Lauterbach, Fido). This is part of a solution for the MIPI P1149.7,`
			`* compact JTAG, standard.`
			`*`
			`* This header file is used by n_tracerouter to be able to send the`
			`* data of it's tty port to the tty port this module sits. This`
			`* mechanism can also be used independent of the PTI module.`
			`*`
			`*/`

			`#ifndef N_TRACESINK_H_`
			`#define N_TRACESINK_H_`

			`void n_tracesink_datadrain(u8 *buf, int count);`

			`#endif`