src/core/gdbserial.c

   1 /*
   2  * Copyright (C) 2008 Stefan Hajnoczi <stefanha@gmail.com>.
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License as
   6  * published by the Free Software Foundation; either version 2 of the
   7  * License, or any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful, but
  10  * WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17  */
  18
  19 #include <assert.h>
  20 #include <gpxe/serial.h>
  21 #include <gpxe/gdbstub.h>
  22 #include <gpxe/gdbserial.h>
  23
  24 struct gdb_transport serial_gdb_transport __gdb_transport;
  25
  26 static size_t gdbserial_recv ( char *buf, size_t len ) {
  27         assert ( len > 0 );
  28         buf [ 0 ] = serial_getc();
  29         return 1;
  30 }
  31
  32 static void gdbserial_send ( const char *buf, size_t len ) {
  33         while ( len-- > 0 ) {
  34                 serial_putc ( *buf++ );
  35         }
  36 }
  37
  38 struct gdb_transport serial_gdb_transport __gdb_transport = {
  39         .name = "serial",
  40         .recv = gdbserial_recv,
  41         .send = gdbserial_send,
  42 };
  43
  44 struct gdb_transport *gdbserial_configure ( void ) {
  45         return &serial_gdb_transport;
  46 }