sys/arch/arm/omap/omap_wdtvar.h

   1 /*
   2  * adapted/extracted from omap_wdt.c
   3  *
   4  * Copyright (c) 2007 Microsoft
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. All advertising materials mentioning features or use of this software
  16  *    must display the following acknowledgement:
  17  *      This product includes software developed by Microsoft
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
  20  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  21  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  22  * IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTERS BE LIABLE FOR ANY DIRECT,
  23  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  24  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  25  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  29  * SUCH DAMAGE.
  30  */
  31 #ifndef  _OMAP_WDTVAR_H
  32 #define  _OMAP_WDTVAR_H
  33
  34 #include <sys/device.h>
  35 #include <machine/bus.h>
  36 #include <dev/sysmon/sysmonvar.h>
  37
  38 #define OMAPWDT32K_DEFAULT_PERIOD       4               /* in seconds */
  39
  40 struct omapwdt32k_softc {
  41         device_t sc_dev;
  42         bus_space_tag_t sc_iot;
  43         bus_space_handle_t sc_ioh;
  44         struct sysmon_wdog sc_smw;
  45         int sc_armed;
  46 };
  47
  48 extern struct omapwdt32k_softc *omapwdt32k_sc;
  49 extern int omapwdt_sysconfig;
  50
  51 int     omapwdt32k_setmode(struct sysmon_wdog *);
  52 int     omapwdt32k_tickle(struct sysmon_wdog *);
  53
  54 void    omapwdt32k_set_timeout(unsigned int period);
  55 int     omapwdt32k_enable(int enable);
  56 void    omapwdt32k_reboot(void);
  57
  58 #endif  /* _OMAP_WDTVAR_H */