libs/iwinfo: implement *_get_txpwrlist() to obtain valid tx power levels

[project/luci.git] / libs / iwinfo / src / iwinfo_lualib.c

diff --git a/libs/iwinfo/src/iwinfo_lualib.c b/libs/iwinfo/src/iwinfo_lualib.c
index 3325463..6974280 100644 (file)
--- a/libs/iwinfo/src/iwinfo_lualib.c
+++ b/libs/iwinfo/src/iwinfo_lualib.c
@@ -75,6 +75,39 @@ static int iwinfo_L_assoclist(lua_State *L, int (*func)(const char *, char *, in
        return 1;
 }
 
+/* Wrapper for tx power list */
+static int iwinfo_L_txpwrlist(lua_State *L, int (*func)(const char *, char *, int *))
+{
+       int i, x, len;
+       char rv[IWINFO_BUFSIZE];
+       const char *ifname = luaL_checkstring(L, 1);
+       struct iwinfo_txpwrlist_entry *e;
+
+       lua_newtable(L);
+       memset(rv, 0, sizeof(rv));
+
+       if( !(*func)(ifname, rv, &len) )
+       {
+               for( i = 0, x = 1; i < len; i += sizeof(struct iwinfo_txpwrlist_entry), x++ )
+               {
+                       e = (struct iwinfo_txpwrlist_entry *) &rv[i];
+
+                       lua_pushinteger(L, x);
+                       lua_newtable(L);
+
+                       lua_pushnumber(L, e->mw);
+                       lua_setfield(L, -2, "mw");
+                       
+                       lua_pushnumber(L, e->dbm);
+                       lua_setfield(L, -2, "dbm");
+
+                       lua_settable(L, -3);
+               }
+       }
+
+       return 1;
+}
+
 /* Broadcom */
 LUA_WRAP_INT(wl,channel)
 LUA_WRAP_INT(wl,frequency)
@@ -89,6 +122,7 @@ LUA_WRAP_STRING(wl,ssid)
 LUA_WRAP_STRING(wl,bssid)
 LUA_WRAP_STRING(wl,enctype)
 LUA_WRAP_ASSOCLIST(wl)
+LUA_WRAP_TXPWRLIST(wl)
 
 /* Madwifi */
 LUA_WRAP_INT(madwifi,channel)
@@ -104,6 +138,7 @@ LUA_WRAP_STRING(madwifi,ssid)
 LUA_WRAP_STRING(madwifi,bssid)
 LUA_WRAP_STRING(madwifi,enctype)
 LUA_WRAP_ASSOCLIST(madwifi)
+LUA_WRAP_TXPWRLIST(madwifi)
 
 /* Wext */
 LUA_WRAP_INT(wext,channel)
@@ -119,6 +154,7 @@ LUA_WRAP_STRING(wext,ssid)
 LUA_WRAP_STRING(wext,bssid)
 LUA_WRAP_STRING(wext,enctype)
 LUA_WRAP_ASSOCLIST(wext)
+LUA_WRAP_TXPWRLIST(wext)
 
 /* Broadcom table */
 static const luaL_reg R_wl[] = {
@@ -134,6 +170,7 @@ static const luaL_reg R_wl[] = {
        LUA_REG(wl,bssid),
        LUA_REG(wl,enctype),
        LUA_REG(wl,assoclist),
+       LUA_REG(wl,txpwrlist),
        LUA_REG(wl,mbssid_support),
        { NULL, NULL }
 };
@@ -152,6 +189,7 @@ static const luaL_reg R_madwifi[] = {
        LUA_REG(madwifi,bssid),
        LUA_REG(madwifi,enctype),
        LUA_REG(madwifi,assoclist),
+       LUA_REG(madwifi,txpwrlist),
        LUA_REG(madwifi,mbssid_support),
        { NULL, NULL }
 };
@@ -170,6 +208,7 @@ static const luaL_reg R_wext[] = {
        LUA_REG(wext,bssid),
        LUA_REG(wext,enctype),
        LUA_REG(wext,assoclist),
+       LUA_REG(wext,txpwrlist),
        LUA_REG(wext,mbssid_support),
        { NULL, NULL }
 };