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      1 /*	$NetBSD: luapmf.c,v 1.6 2014/07/19 18:38:35 lneto Exp $ */
      2 
      3 /*
      4  * Copyright (c) 2011, 2013 Marc Balmer <mbalmer (at) NetBSD.org>.
      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. The name of the Author may not be used to endorse or promote products
     16  *    derived from this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     21  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     28  * SUCH DAMAGE.
     29  */
     30 
     31 /* Lua pmf module */
     32 
     33 #include <sys/param.h>
     34 #include <sys/device.h>
     35 #include <sys/lua.h>
     36 #ifdef _MODULE
     37 #include <sys/module.h>
     38 #endif
     39 #include <sys/reboot.h>
     40 
     41 #include <lua.h>
     42 #include <lauxlib.h>
     43 
     44 #ifdef _MODULE
     45 MODULE(MODULE_CLASS_MISC, luapmf, "lua");
     46 
     47 static int
     48 system_shutdown(lua_State *L)
     49 {
     50 	pmf_system_shutdown(lua_tointeger(L, 1));
     51 	return 0;
     52 }
     53 
     54 static int
     55 set_platform(lua_State *L)
     56 {
     57 	const char *key, *value;
     58 
     59 	key = lua_tostring(L, -2);
     60 	value = lua_tostring(L, -1);
     61 	if (key != NULL && value != NULL)
     62 		pmf_set_platform(key, value);
     63 	return 0;
     64 }
     65 
     66 static int
     67 get_platform(lua_State *L)
     68 {
     69 	const char *key, *value;
     70 
     71 	key = lua_tostring(L, -1);
     72 	if (key != NULL) {
     73 		value = pmf_get_platform(key);
     74 		if (value != NULL)
     75 			lua_pushstring(L, value);
     76 		else
     77 			lua_pushnil(L);
     78 	} else
     79 		lua_pushnil(L);
     80 	return 1;
     81 
     82 }
     83 
     84 static int
     85 luaopen_pmf(lua_State *L)
     86 {
     87 	const luaL_Reg pmf_lib[ ] = {
     88 		{ "system_shutdown",	system_shutdown },
     89 		{ "set_platform",	set_platform },
     90 		{ "get_platform",	get_platform },
     91 		{ NULL, NULL }
     92 	};
     93 
     94 	luaL_newlib(L, pmf_lib);
     95 
     96 	/* some integer values */
     97 	lua_pushinteger(L, PMFE_DISPLAY_ON);
     98 	lua_setfield(L, -2, "PMFE_DISPLAY_ON");
     99 	lua_pushinteger(L, PMFE_DISPLAY_REDUCED);
    100 	lua_setfield(L, -2, "PMFE_DISPLAY_REDUCED");
    101 	lua_pushinteger(L, PMFE_DISPLAY_STANDBY);
    102 	lua_setfield(L, -2, "PMFE_DISPLAY_STANDBY");
    103 	lua_pushinteger(L, PMFE_DISPLAY_SUSPEND);
    104 	lua_setfield(L, -2, "PMFE_DISPLAY_SUSPEND");
    105 	lua_pushinteger(L, PMFE_DISPLAY_OFF);
    106 	lua_setfield(L, -2, "PMFE_DISPLAY_OFF");
    107 	lua_pushinteger(L, PMFE_DISPLAY_BRIGHTNESS_UP);
    108 	lua_setfield(L, -2, "PMFE_DISPLAY_BRIGHTNESS_UP");
    109 	lua_pushinteger(L, PMFE_DISPLAY_BRIGHTNESS_DOWN);
    110 	lua_setfield(L, -2, "PMFE_DISPLAY_BRIGHTNESS_DOWN");
    111 	lua_pushinteger(L, PMFE_AUDIO_VOLUME_UP);
    112 	lua_setfield(L, -2, "PMFE_AUDIO_VOLUME_UP");
    113 	lua_pushinteger(L, PMFE_AUDIO_VOLUME_DOWN);
    114 	lua_setfield(L, -2, "PMFE_AUDIO_VOLUME_DOWN");
    115 	lua_pushinteger(L, PMFE_AUDIO_VOLUME_TOGGLE);
    116 	lua_setfield(L, -2, "PMFE_AUDIO_VOLUME_TOGGLE");
    117 	lua_pushinteger(L, PMFE_CHASSIS_LID_CLOSE);
    118 	lua_setfield(L, -2, "PMFE_CHASSIS_LID_CLOSE");
    119 	lua_pushinteger(L, PMFE_CHASSIS_LID_OPEN);
    120 	lua_setfield(L, -2, "PMFE_CHASSIS_LID_OPEN");
    121 
    122 	/* reboot(2) howto arg */
    123 	lua_pushinteger(L, RB_AUTOBOOT);
    124 	lua_setfield(L, -2, "RB_AUTOBOOT");
    125 	lua_pushinteger(L, RB_ASKNAME);
    126 	lua_setfield(L, -2, "RB_ASKNAME");
    127 	lua_pushinteger(L, RB_DUMP);
    128 	lua_setfield(L, -2, "RB_DUMP");
    129 	lua_pushinteger(L, RB_HALT);
    130 	lua_setfield(L, -2, "RB_HALT");
    131 	lua_pushinteger(L, RB_POWERDOWN);
    132 	lua_setfield(L, -2, "RB_POWERDOWN");
    133 	lua_pushinteger(L, RB_KDB);
    134 	lua_setfield(L, -2, "RB_KDB");
    135 	lua_pushinteger(L, RB_NOSYNC);
    136 	lua_setfield(L, -2, "RB_NOSYNC");
    137 	lua_pushinteger(L, RB_RDONLY);
    138 	lua_setfield(L, -2, "RB_RDONLY");
    139 	lua_pushinteger(L, RB_SINGLE);
    140 	lua_setfield(L, -2, "RB_SINGLE");
    141 	lua_pushinteger(L, RB_USERCONF);
    142 	lua_setfield(L, -2, "RB_USERCONF");
    143 
    144 	return 1;
    145 }
    146 
    147 static int
    148 luapmf_modcmd(modcmd_t cmd, void *opaque)
    149 {
    150 	int error;
    151 	switch (cmd) {
    152 	case MODULE_CMD_INIT:
    153 		error = klua_mod_register("pmf", luaopen_pmf);
    154 		break;
    155 	case MODULE_CMD_FINI:
    156 		error = klua_mod_unregister("pmf");
    157 		break;
    158 	default:
    159 		error = ENOTTY;
    160 	}
    161 	return error;
    162 }
    163 #endif
    164