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  • This comparison shows the changes necessary to convert path 
    /openrisc/trunk/rtos/ecos-2.0/packages/devs/watchdog/sh/sh3
    from Rev 27 to Rev 174
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  •

Rev 27 → Rev 174

/v2_0/cdl/watchdog_sh3.cdl
0,0 → 1,102
# ====================================================================
#
# watchdog_sh3.cdl
#
# eCos watchdog for the Hitachi SH3 driver configuration data
#
# ====================================================================
#####ECOSGPLCOPYRIGHTBEGIN####
## -------------------------------------------
## This file is part of eCos, the Embedded Configurable Operating System.
## Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
##
## eCos 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 or (at your option) any later version.
##
## eCos 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.
##
## You should have received a copy of the GNU General Public License along
## with eCos; if not, write to the Free Software Foundation, Inc.,
## 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
##
## As a special exception, if other files instantiate templates or use macros
## or inline functions from this file, or you compile this file and link it
## with other works to produce a work based on this file, this file does not
## by itself cause the resulting work to be covered by the GNU General Public
## License. However the source code for this file must still be made available
## in accordance with section (3) of the GNU General Public License.
##
## This exception does not invalidate any other reasons why a work based on
## this file might be covered by the GNU General Public License.
##
## Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
## at http://sources.redhat.com/ecos/ecos-license/
## -------------------------------------------
#####ECOSGPLCOPYRIGHTEND####
# ====================================================================
######DESCRIPTIONBEGIN####
#
# Author(s): jskov
# Contributors: jskov
# Date: 2000-05-31
#
#####DESCRIPTIONEND####
#
# ====================================================================
 
cdl_package CYGPKG_DEVICES_WATCHDOG_SH_SH3 {
parent CYGPKG_IO_WATCHDOG
active_if CYGPKG_IO_WATCHDOG
display "SH3 watchdog driver"
requires CYGPKG_HAL_SH
requires CYGPKG_KERNEL
hardware
compile watchdog_sh3.cxx
implements CYGINT_WATCHDOG_HW_IMPLEMENTATIONS
implements CYGINT_WATCHDOG_RESETS_ON_TIMEOUT
active_if CYGIMP_WATCHDOG_HARDWARE
 
cdl_option CYGIMP_WATCHDOG_HARDWARE {
parent CYGPKG_IO_WATCHDOG_IMPLEMENTATION
display "Hardware watchdog"
default_value 1
implements CYGINT_WATCHDOG_IMPLEMENTATIONS
}
 
cdl_component CYGPKG_DEVICES_WATCHDOG_SH_SH3_OPTIONS {
display "SH3 watchdog build options"
flavor none
description "
Package specific build options including control over
compiler flags used only in building this package,
and details of which tests are built."
 
 
cdl_option CYGPKG_DEVICES_WATCHDOG_SH_SH3_CFLAGS_ADD {
display "Additional compiler flags"
flavor data
no_define
default_value { "" }
description "
This option modifies the set of compiler flags for
building the watchdog device. These flags are used in addition
to the set of global flags."
}
 
cdl_option CYGPKG_DEVICES_WATCHDOG_SH_SH3_CFLAGS_REMOVE {
display "Suppressed compiler flags"
flavor data
no_define
default_value { "" }
description "
This option modifies the set of compiler flags for
building the watchdog device. These flags are removed from
the set of global flags if present."
}
 
}
}
/v2_0/src/watchdog_sh3.cxx
0,0 → 1,141
//==========================================================================
//
// devs/watchdog/sh/sh3/watchdog_sh3.cxx
//
// Watchdog implementation for Hitachi SH CPUs
//
//==========================================================================
//####ECOSGPLCOPYRIGHTBEGIN####
// -------------------------------------------
// This file is part of eCos, the Embedded Configurable Operating System.
// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
//
// eCos 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 or (at your option) any later version.
//
// eCos 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.
//
// You should have received a copy of the GNU General Public License along
// with eCos; if not, write to the Free Software Foundation, Inc.,
// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
//
// As a special exception, if other files instantiate templates or use macros
// or inline functions from this file, or you compile this file and link it
// with other works to produce a work based on this file, this file does not
// by itself cause the resulting work to be covered by the GNU General Public
// License. However the source code for this file must still be made available
// in accordance with section (3) of the GNU General Public License.
//
// This exception does not invalidate any other reasons why a work based on
// this file might be covered by the GNU General Public License.
//
// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
// at http://sources.redhat.com/ecos/ecos-license/
// -------------------------------------------
//####ECOSGPLCOPYRIGHTEND####
//==========================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s): jskov
// Contributors: jskov
// Date: 1999-09-01
// Purpose: Watchdog class implementation
// Description: Contains an implementation of the Watchdog class for use
// with the Hitachi SH watchdog timer.
//
//####DESCRIPTIONEND####
//
//==========================================================================
 
#include <pkgconf/system.h> // system configuration file
#include <pkgconf/watchdog.h> // configuration for this package
#include <pkgconf/kernel.h> // kernel config
 
#include <cyg/infra/cyg_trac.h> // tracing macros
#include <cyg/kernel/instrmnt.h> // instrumentation
 
#include <cyg/hal/hal_io.h> // IO register access
#include <cyg/hal/sh_regs.h> // watchdog register definitions
 
#include <cyg/io/watchdog.hxx> // watchdog API
 
// -------------------------------------------------------------------------
// Constructor
 
void
Cyg_Watchdog::init_hw(void)
{
CYG_REPORT_FUNCTION();
// No hardware init needed.
 
resolution = CYGARC_REG_WTCSR_PERIOD;
 
CYG_REPORT_RETURN();
}
 
// -------------------------------------------------------------------------
// Start the watchdog running.
 
void
Cyg_Watchdog::start()
{
CYG_REPORT_FUNCTION();
 
// Init the watchdog timer (note: 8 bit reads, 16 bit writes)
cyg_uint16 csr;
// First disable without changing other bits.
HAL_READ_UINT8(CYGARC_REG_WTCSR, csr);
csr |= CYGARC_REG_WTCSR_WRITE;
csr &= ~CYGARC_REG_WTCSR_TME;
HAL_WRITE_UINT16(CYGARC_REG_WTCSR, csr);
// Then set control bits and clear counter.
csr = (CYGARC_REG_WTCSR_WRITE
|CYGARC_REG_WTCSR_WT_IT
|CYGARC_REG_WTCSR_CKSx_SETTING);
HAL_WRITE_UINT16(CYGARC_REG_WTCSR, csr);
HAL_WRITE_UINT16(CYGARC_REG_WTCNT, CYGARC_REG_WTCNT_WRITE);
// Finally enable timer.
csr |= CYGARC_REG_WTCSR_TME;
HAL_WRITE_UINT16(CYGARC_REG_WTCSR, csr);
CYG_REPORT_RETURN();
}
 
// -------------------------------------------------------------------------
// Reset watchdog timer. This needs to be called regularly to prevent
// the watchdog firing.
 
void
Cyg_Watchdog::reset()
{
CYG_REPORT_FUNCTION();
 
HAL_WRITE_UINT16(CYGARC_REG_WTCNT, CYGARC_REG_WTCNT_WRITE);
CYG_REPORT_RETURN();
}
 
#if 0
// -------------------------------------------------------------------------
// Trigger the watchdog as if the timer had expired.
 
void
Cyg_Watchdog::action_reset(void)
{
CYG_REPORT_FUNCTION();
start();
 
HAL_WRITE_UINT16(CYGARC_REG_WTCNT, CYGARC_REG_WTCNT_WRITE|0xfe);
 
CYG_REPORT_RETURN();
}
#endif
 
// -------------------------------------------------------------------------
// EOF watchdog_sh3.cxx
/v2_0/ChangeLog
0,0 → 1,44
2000-05-31 Jesper Skov <jskov@redhat.com>
 
* cdl/watchdog_sh3.cdl:
* src/watchdog_sh3.cxx:
Driver moved to devs/watchdog/sh/sh3. Stripped out
unrelated ChangeLog entries.
 
1999-09-01 Jesper Skov <jskov@cygnus.co.uk>
 
* src/sh.cxx:
Added watchdog driver for SH.
 
//####ECOSGPLCOPYRIGHTBEGIN####
// -------------------------------------------
// This file is part of eCos, the Embedded Configurable Operating System.
// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
//
// eCos 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 or (at your option) any later version.
//
// eCos 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.
//
// You should have received a copy of the GNU General Public License along
// with eCos; if not, write to the Free Software Foundation, Inc.,
// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
//
// As a special exception, if other files instantiate templates or use macros
// or inline functions from this file, or you compile this file and link it
// with other works to produce a work based on this file, this file does not
// by itself cause the resulting work to be covered by the GNU General Public
// License. However the source code for this file must still be made available
// in accordance with section (3) of the GNU General Public License.
//
// This exception does not invalidate any other reasons why a work based on
// this file might be covered by the GNU General Public License.
//
// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
// at http://sources.redhat.com/ecos/ecos-license/
// -------------------------------------------
//####ECOSGPLCOPYRIGHTEND####

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