//=============================================================================
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//=============================================================================
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//
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//
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// plf_stub.c
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// plf_stub.c
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//
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//
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// Platform specific code for GDB stub support.
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// Platform specific code for GDB stub support.
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//
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//
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//=============================================================================
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//=============================================================================
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//####ECOSGPLCOPYRIGHTBEGIN####
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//####ECOSGPLCOPYRIGHTBEGIN####
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// -------------------------------------------
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// -------------------------------------------
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// This file is part of eCos, the Embedded Configurable Operating System.
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// This file is part of eCos, the Embedded Configurable Operating System.
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// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
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// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
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//
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//
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// eCos is free software; you can redistribute it and/or modify it under
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// eCos is free software; you can redistribute it and/or modify it under
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// the terms of the GNU General Public License as published by the Free
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// the terms of the GNU General Public License as published by the Free
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// Software Foundation; either version 2 or (at your option) any later version.
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// Software Foundation; either version 2 or (at your option) any later version.
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//
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//
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// eCos is distributed in the hope that it will be useful, but WITHOUT ANY
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// eCos is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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// for more details.
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// for more details.
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//
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//
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// You should have received a copy of the GNU General Public License along
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// You should have received a copy of the GNU General Public License along
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// with eCos; if not, write to the Free Software Foundation, Inc.,
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// with eCos; if not, write to the Free Software Foundation, Inc.,
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// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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//
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//
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// As a special exception, if other files instantiate templates or use macros
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// As a special exception, if other files instantiate templates or use macros
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// or inline functions from this file, or you compile this file and link it
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// or inline functions from this file, or you compile this file and link it
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// with other works to produce a work based on this file, this file does not
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// with other works to produce a work based on this file, this file does not
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// by itself cause the resulting work to be covered by the GNU General Public
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// by itself cause the resulting work to be covered by the GNU General Public
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// License. However the source code for this file must still be made available
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// License. However the source code for this file must still be made available
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// in accordance with section (3) of the GNU General Public License.
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// in accordance with section (3) of the GNU General Public License.
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//
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//
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// This exception does not invalidate any other reasons why a work based on
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// This exception does not invalidate any other reasons why a work based on
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// this file might be covered by the GNU General Public License.
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// this file might be covered by the GNU General Public License.
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//
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//
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// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
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// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
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// at http://sources.redhat.com/ecos/ecos-license/
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// at http://sources.redhat.com/ecos/ecos-license/
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// -------------------------------------------
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// -------------------------------------------
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//####ECOSGPLCOPYRIGHTEND####
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//####ECOSGPLCOPYRIGHTEND####
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//=============================================================================
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//=============================================================================
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//#####DESCRIPTIONBEGIN####
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//#####DESCRIPTIONBEGIN####
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//
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//
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// Author(s): nickg, jskov (based on the old tx39 hal_stub.c)
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// Author(s): nickg, jskov (based on the old tx39 hal_stub.c)
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// Contributors:nickg, jskov
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// Contributors:nickg, jskov
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// Date: 1999-02-12
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// Date: 1999-02-12
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// Purpose: Platform specific code for GDB stub support.
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// Purpose: Platform specific code for GDB stub support.
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//
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//
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//####DESCRIPTIONEND####
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//####DESCRIPTIONEND####
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//
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//
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//=============================================================================
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//=============================================================================
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#include <pkgconf/hal.h>
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#include <pkgconf/hal.h>
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#ifdef CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
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#ifdef CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
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#include <cyg/hal/hal_stub.h>
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#include <cyg/hal/hal_stub.h>
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#include <cyg/hal/hal_io.h> // HAL IO macros
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#include <cyg/hal/hal_io.h> // HAL IO macros
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#include <cyg/hal/hal_diag.h> // diag output. FIXME
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#include <cyg/hal/hal_diag.h> // diag output. FIXME
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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// Serial definitions.
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// Serial definitions.
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#define DIAG_BASE 0xfffff300
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#define DIAG_BASE 0xfffff300
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#define DIAG_SLCR (DIAG_BASE+0x00)
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#define DIAG_SLCR (DIAG_BASE+0x00)
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#define DIAG_SLSR (DIAG_BASE+0x04)
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#define DIAG_SLSR (DIAG_BASE+0x04)
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#define DIAG_SLDICR (DIAG_BASE+0x08)
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#define DIAG_SLDICR (DIAG_BASE+0x08)
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#define DIAG_SLDISR (DIAG_BASE+0x0C)
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#define DIAG_SLDISR (DIAG_BASE+0x0C)
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#define DIAG_SFCR (DIAG_BASE+0x10)
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#define DIAG_SFCR (DIAG_BASE+0x10)
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#define DIAG_SBRG (DIAG_BASE+0x14)
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#define DIAG_SBRG (DIAG_BASE+0x14)
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#define DIAG_TFIFO (DIAG_BASE+0x20)
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#define DIAG_TFIFO (DIAG_BASE+0x20)
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#define DIAG_RFIFO (DIAG_BASE+0x30)
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#define DIAG_RFIFO (DIAG_BASE+0x30)
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#define BRG_T0 0x0000
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#define BRG_T0 0x0000
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#define BRG_T2 0x0100
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#define BRG_T2 0x0100
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#define BRG_T4 0x0200
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#define BRG_T4 0x0200
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#define BRG_T5 0x0300
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#define BRG_T5 0x0300
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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// Initialize the current serial port.
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// Initialize the current serial port.
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void hal_jmr_init_serial( void )
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void hal_jmr_init_serial( void )
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{
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{
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//hal_diag_led(0x10);
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//hal_diag_led(0x10);
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HAL_WRITE_UINT16( DIAG_SLCR , 0x0020 );
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HAL_WRITE_UINT16( DIAG_SLCR , 0x0020 );
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HAL_WRITE_UINT16( DIAG_SLDICR , 0x0000 );
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HAL_WRITE_UINT16( DIAG_SLDICR , 0x0000 );
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HAL_WRITE_UINT16( DIAG_SFCR , 0x0000 );
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HAL_WRITE_UINT16( DIAG_SFCR , 0x0000 );
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// HAL_WRITE_UINT16( DIAG_SBRG , BRG_T2 | 20 );
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// HAL_WRITE_UINT16( DIAG_SBRG , BRG_T2 | 20 );
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// HAL_WRITE_UINT16( DIAG_SBRG , BRG_T2 | 10 );
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// HAL_WRITE_UINT16( DIAG_SBRG , BRG_T2 | 10 );
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HAL_WRITE_UINT16( DIAG_SBRG , BRG_T2 | 5 );
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HAL_WRITE_UINT16( DIAG_SBRG , BRG_T2 | 5 );
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//hal_diag_led(0x10);
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//hal_diag_led(0x10);
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}
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}
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// Write C to the current serial port.
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// Write C to the current serial port.
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void hal_jmr_put_char( int c )
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void hal_jmr_put_char( int c )
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{
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{
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CYG_WORD16 disr;
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CYG_WORD16 disr;
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//hal_diag_led(0x20);
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//hal_diag_led(0x20);
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for(;;)
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for(;;)
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{
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{
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HAL_READ_UINT16( DIAG_SLDISR , disr );
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HAL_READ_UINT16( DIAG_SLDISR , disr );
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if( disr & 0x0002 ) break;
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if( disr & 0x0002 ) break;
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}
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}
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disr = disr & ~0x0002;
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disr = disr & ~0x0002;
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HAL_WRITE_UINT8( DIAG_TFIFO, c );
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HAL_WRITE_UINT8( DIAG_TFIFO, c );
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HAL_WRITE_UINT16( DIAG_SLDISR , disr );
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HAL_WRITE_UINT16( DIAG_SLDISR , disr );
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//hal_diag_led(0x20);
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//hal_diag_led(0x20);
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// HAL_DIAG_WRITE_CHAR( c );
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// HAL_DIAG_WRITE_CHAR( c );
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}
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}
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// Read one character from the current serial port.
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// Read one character from the current serial port.
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int hal_jmr_get_char( void )
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int hal_jmr_get_char( void )
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{
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{
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#ifdef CYGPKG_HAL_MIPS_SIM
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#ifdef CYGPKG_HAL_MIPS_SIM
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// FIXME: ask nickg if this can go to /dev/null
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// FIXME: ask nickg if this can go to /dev/null
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static char input[] = "+$s#73";
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static char input[] = "+$s#73";
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static int i = 0;
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static int i = 0;
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return input[i++];
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return input[i++];
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#else
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#else
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char c;
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char c;
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CYG_WORD16 disr;
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CYG_WORD16 disr;
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//hal_diag_led(0x40);
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//hal_diag_led(0x40);
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for(;;)
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for(;;)
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{
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{
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HAL_READ_UINT16( DIAG_SLDISR , disr );
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HAL_READ_UINT16( DIAG_SLDISR , disr );
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if( disr & 0x0001 ) break;
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if( disr & 0x0001 ) break;
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}
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}
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disr = disr & ~0x0001;
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disr = disr & ~0x0001;
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HAL_READ_UINT8( DIAG_RFIFO, c );
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HAL_READ_UINT8( DIAG_RFIFO, c );
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HAL_WRITE_UINT16( DIAG_SLDISR , disr );
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HAL_WRITE_UINT16( DIAG_SLDISR , disr );
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//hal_diag_led(0x40);
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//hal_diag_led(0x40);
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// HAL_DIAG_READ_CHAR(c);
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// HAL_DIAG_READ_CHAR(c);
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// diag_printf("<%02x:%c>",c);
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// diag_printf("<%02x:%c>",c);
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return c;
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return c;
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#endif
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#endif
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}
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}
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#endif // ifdef CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
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#endif // ifdef CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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// End of plf_stub.c
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// End of plf_stub.c
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