/*      $NetBSD: luapmf.c,v 1.6 2014/07/19 18:38:35 lneto Exp $ */

/*
* Copyright (c) 2011, 2013 Marc Balmer <[email protected]>.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
* 3. The name of the Author may not be used to endorse or promote products
*    derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
*/

/* Lua pmf module */

#include <sys/param.h>
#include <sys/device.h>
#include <sys/lua.h>
#ifdef _MODULE
#include <sys/module.h>
#endif
#include <sys/reboot.h>

#include <lua.h>
#include <lauxlib.h>

#ifdef _MODULE
MODULE(MODULE_CLASS_MISC, luapmf, "lua");

static int
system_shutdown(lua_State *L)
{
       pmf_system_shutdown(lua_tointeger(L, 1));
       return 0;
}

static int
set_platform(lua_State *L)
{
       const char *key, *value;

       key = lua_tostring(L, -2);
       value = lua_tostring(L, -1);
       if (key != NULL && value != NULL)
               pmf_set_platform(key, value);
       return 0;
}

static int
get_platform(lua_State *L)
{
       const char *key, *value;

       key = lua_tostring(L, -1);
       if (key != NULL) {
               value = pmf_get_platform(key);
               if (value != NULL)
                       lua_pushstring(L, value);
               else
                       lua_pushnil(L);
       } else
               lua_pushnil(L);
       return 1;

}

static int
luaopen_pmf(lua_State *L)
{
       const luaL_Reg pmf_lib[ ] = {
               { "system_shutdown",    system_shutdown },
               { "set_platform",       set_platform },
               { "get_platform",       get_platform },
               { NULL, NULL }
       };

       luaL_newlib(L, pmf_lib);

       /* some integer values */
       lua_pushinteger(L, PMFE_DISPLAY_ON);
       lua_setfield(L, -2, "PMFE_DISPLAY_ON");
       lua_pushinteger(L, PMFE_DISPLAY_REDUCED);
       lua_setfield(L, -2, "PMFE_DISPLAY_REDUCED");
       lua_pushinteger(L, PMFE_DISPLAY_STANDBY);
       lua_setfield(L, -2, "PMFE_DISPLAY_STANDBY");
       lua_pushinteger(L, PMFE_DISPLAY_SUSPEND);
       lua_setfield(L, -2, "PMFE_DISPLAY_SUSPEND");
       lua_pushinteger(L, PMFE_DISPLAY_OFF);
       lua_setfield(L, -2, "PMFE_DISPLAY_OFF");
       lua_pushinteger(L, PMFE_DISPLAY_BRIGHTNESS_UP);
       lua_setfield(L, -2, "PMFE_DISPLAY_BRIGHTNESS_UP");
       lua_pushinteger(L, PMFE_DISPLAY_BRIGHTNESS_DOWN);
       lua_setfield(L, -2, "PMFE_DISPLAY_BRIGHTNESS_DOWN");
       lua_pushinteger(L, PMFE_AUDIO_VOLUME_UP);
       lua_setfield(L, -2, "PMFE_AUDIO_VOLUME_UP");
       lua_pushinteger(L, PMFE_AUDIO_VOLUME_DOWN);
       lua_setfield(L, -2, "PMFE_AUDIO_VOLUME_DOWN");
       lua_pushinteger(L, PMFE_AUDIO_VOLUME_TOGGLE);
       lua_setfield(L, -2, "PMFE_AUDIO_VOLUME_TOGGLE");
       lua_pushinteger(L, PMFE_CHASSIS_LID_CLOSE);
       lua_setfield(L, -2, "PMFE_CHASSIS_LID_CLOSE");
       lua_pushinteger(L, PMFE_CHASSIS_LID_OPEN);
       lua_setfield(L, -2, "PMFE_CHASSIS_LID_OPEN");

       /* reboot(2) howto arg */
       lua_pushinteger(L, RB_AUTOBOOT);
       lua_setfield(L, -2, "RB_AUTOBOOT");
       lua_pushinteger(L, RB_ASKNAME);
       lua_setfield(L, -2, "RB_ASKNAME");
       lua_pushinteger(L, RB_DUMP);
       lua_setfield(L, -2, "RB_DUMP");
       lua_pushinteger(L, RB_HALT);
       lua_setfield(L, -2, "RB_HALT");
       lua_pushinteger(L, RB_POWERDOWN);
       lua_setfield(L, -2, "RB_POWERDOWN");
       lua_pushinteger(L, RB_KDB);
       lua_setfield(L, -2, "RB_KDB");
       lua_pushinteger(L, RB_NOSYNC);
       lua_setfield(L, -2, "RB_NOSYNC");
       lua_pushinteger(L, RB_RDONLY);
       lua_setfield(L, -2, "RB_RDONLY");
       lua_pushinteger(L, RB_SINGLE);
       lua_setfield(L, -2, "RB_SINGLE");
       lua_pushinteger(L, RB_USERCONF);
       lua_setfield(L, -2, "RB_USERCONF");

       return 1;
}

static int
luapmf_modcmd(modcmd_t cmd, void *opaque)
{
       int error;
       switch (cmd) {
       case MODULE_CMD_INIT:
               error = klua_mod_register("pmf", luaopen_pmf);
               break;
       case MODULE_CMD_FINI:
               error = klua_mod_unregister("pmf");
               break;
       default:
               error = ENOTTY;
       }
       return error;
}
#endif

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