1 /*
2 * linux/arch/mips/tx4927/common/tx4927_dbgio.c
3 *
4 * kgdb interface for gdb
5 *
6 * Author: MontaVista Software, Inc.
7 * source@mvista.com
8 *
9 * Copyright 2001-2002 MontaVista Software Inc.
10 *
11 * This program is free software; you can redistribute it and/or modify it
12 * under the terms of the GNU General Public License as published by the
13 * Free Software Foundation; either version 2 of the License, or (at your
14 * option) any later version.
15 *
16 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
24 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
25 * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 *
27 * You should have received a copy of the GNU General Public License along
28 * with this program; if not, write to the Free Software Foundation, Inc.,
29 * 675 Mass Ave, Cambridge, MA 02139, USA.
30 */
31
32 #include <asm/mipsregs.h>
33 #include <asm/system.h>
34 #include <asm/tx4927/tx4927_mips.h>
35
getDebugChar(void)36 u8 getDebugChar(void)
37 {
38 extern u8 txx9_sio_kdbg_rd(void);
39 return (txx9_sio_kdbg_rd());
40 }
41
42
putDebugChar(u8 byte)43 int putDebugChar(u8 byte)
44 {
45 extern int txx9_sio_kdbg_wr( u8 ch );
46 return (txx9_sio_kdbg_wr(byte));
47 }
48