|  | /* | 
|  | * linux/arch/mips/tx4938/common/dbgio.c | 
|  | * | 
|  | * kgdb interface for gdb | 
|  | * | 
|  | * Author: MontaVista Software, Inc. | 
|  | *         source@mvista.com | 
|  | * | 
|  | * Copyright 2005 MontaVista Software Inc. | 
|  | * | 
|  | *  This program is free software; you can redistribute it and/or modify it | 
|  | *  under the terms of the GNU General Public License as published by the | 
|  | *  Free Software Foundation; either version 2 of the License, or (at your | 
|  | *  option) any later version. | 
|  | * | 
|  | *  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED | 
|  | *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | 
|  | *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. | 
|  | *  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, | 
|  | *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, | 
|  | *  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS | 
|  | *  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND | 
|  | *  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR | 
|  | *  TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE | 
|  | *  USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 
|  | * | 
|  | *  You should have received a copy of the GNU General Public License along | 
|  | *  with this program; if not, write to the Free Software Foundation, Inc., | 
|  | *  675 Mass Ave, Cambridge, MA 02139, USA. | 
|  | * | 
|  | * Support for TX4938 in 2.6 - Hiroshi DOYU <Hiroshi_DOYU@montavista.co.jp> | 
|  | */ | 
|  |  | 
|  | #include <linux/types> | 
|  |  | 
|  | extern u8 txx9_sio_kdbg_rd(void); | 
|  | extern int txx9_sio_kdbg_wr( u8 ch ); | 
|  |  | 
|  | u8 getDebugChar(void) | 
|  | { | 
|  | return (txx9_sio_kdbg_rd()); | 
|  | } | 
|  |  | 
|  | int putDebugChar(u8 byte) | 
|  | { | 
|  | return (txx9_sio_kdbg_wr(byte)); | 
|  | } | 
|  |  |