/* * This file is part of wl1271 * * Copyright (C) 2010 Nokia Corporation * * Contact: Luciano Coelho * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * version 2 as published by the Free Software Foundation. * * This program 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 this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA * */ #include "testmode.h" #include #include #include "wl12xx.h" #include "debug.h" #include "acx.h" #include "reg.h" #include "ps.h" #define WL1271_TM_MAX_DATA_LENGTH 1024 enum wl1271_tm_commands { WL1271_TM_CMD_UNSPEC, WL1271_TM_CMD_TEST, WL1271_TM_CMD_INTERROGATE, WL1271_TM_CMD_CONFIGURE, WL1271_TM_CMD_SET_PLT_MODE, WL1271_TM_CMD_RECOVER, __WL1271_TM_CMD_AFTER_LAST }; #define WL1271_TM_CMD_MAX (__WL1271_TM_CMD_AFTER_LAST - 1) enum wl1271_tm_attrs { WL1271_TM_ATTR_UNSPEC, WL1271_TM_ATTR_CMD_ID, WL1271_TM_ATTR_ANSWER, WL1271_TM_ATTR_DATA, WL1271_TM_ATTR_IE_ID, WL1271_TM_ATTR_PLT_MODE, __WL1271_TM_ATTR_AFTER_LAST }; #define WL1271_TM_ATTR_MAX (__WL1271_TM_ATTR_AFTER_LAST - 1) static struct nla_policy wl1271_tm_policy[WL1271_TM_ATTR_MAX + 1] = { [WL1271_TM_ATTR_CMD_ID] = { .type = NLA_U32 }, [WL1271_TM_ATTR_ANSWER] = { .type = NLA_U8 }, [WL1271_TM_ATTR_DATA] = { .type = NLA_BINARY, .len = WL1271_TM_MAX_DATA_LENGTH }, [WL1271_TM_ATTR_IE_ID] = { .type = NLA_U32 }, [WL1271_TM_ATTR_PLT_MODE] = { .type = NLA_U32 }, }; static int wl1271_tm_cmd_test(struct wl1271 *wl, struct nlattr *tb[]) { int buf_len, ret, len; struct sk_buff *skb; void *buf; u8 answer = 0; wl1271_debug(DEBUG_TESTMODE, "testmode cmd test"); if (!tb[WL1271_TM_ATTR_DATA]) return -EINVAL; buf = nla_data(tb[WL1271_TM_ATTR_DATA]); buf_len = nla_len(tb[WL1271_TM_ATTR_DATA]); if (tb[WL1271_TM_ATTR_ANSWER]) answer = nla_get_u8(tb[WL1271_TM_ATTR_ANSWER]); if (buf_len > sizeof(struct wl1271_command)) return -EMSGSIZE; mutex_lock(&wl->mutex); if (wl->state == WL1271_STATE_OFF) { ret = -EINVAL; goto out; } ret = wl1271_ps_elp_wakeup(wl); if (ret < 0) goto out; ret = wl1271_cmd_test(wl, buf, buf_len, answer); if (ret < 0) { wl1271_warning("testmode cmd test failed: %d", ret); goto out_sleep; } if (answer) { len = nla_total_size(buf_len); skb = cfg80211_testmode_alloc_reply_skb(wl->hw->wiphy, len); if (!skb) { ret = -ENOMEM; goto out_sleep; } NLA_PUT(skb, WL1271_TM_ATTR_DATA, buf_len, buf); ret = cfg80211_testmode_reply(skb); if (ret < 0) goto out_sleep; } out_sleep: wl1271_ps_elp_sleep(wl); out: mutex_unlock(&wl->mutex); return ret; nla_put_failure: kfree_skb(skb); ret = -EMSGSIZE; goto out_sleep; } static int wl1271_tm_cmd_interrogate(struct wl1271 *wl, struct nlattr *tb[]) { int ret; struct wl1271_command *cmd; struct sk_buff *skb; u8 ie_id; wl1271_debug(DEBUG_TESTMODE, "testmode cmd interrogate"); if (!tb[WL1271_TM_ATTR_IE_ID]) return -EINVAL; ie_id = nla_get_u8(tb[WL1271_TM_ATTR_IE_ID]); mutex_lock(&wl->mutex); if (wl->state == WL1271_STATE_OFF) { ret = -EINVAL; goto out; } ret = wl1271_ps_elp_wakeup(wl); if (ret < 0) goto out; cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); if (!cmd) { ret = -ENOMEM; goto out_sleep; } ret = wl1271_cmd_interrogate(wl, ie_id, cmd, sizeof(*cmd)); if (ret < 0) { wl1271_warning("testmode cmd interrogate failed: %d", ret); goto out_free; } skb = cfg80211_testmode_alloc_reply_skb(wl->hw->wiphy, sizeof(*cmd)); if (!skb) { ret = -ENOMEM; goto out_free; } NLA_PUT(skb, WL1271_TM_ATTR_DATA, sizeof(*cmd), cmd); out_free: kfree(cmd); out_sleep: wl1271_ps_elp_sleep(wl); out: mutex_unlock(&wl->mutex); return ret; nla_put_failure: kfree_skb(skb); ret = -EMSGSIZE; goto out_free; } static int wl1271_tm_cmd_configure(struct wl1271 *wl, struct nlattr *tb[]) { int buf_len, ret; void *buf; u8 ie_id; wl1271_debug(DEBUG_TESTMODE, "testmode cmd configure"); if (!tb[WL1271_TM_ATTR_DATA]) return -EINVAL; if (!tb[WL1271_TM_ATTR_IE_ID]) return -EINVAL; ie_id = nla_get_u8(tb[WL1271_TM_ATTR_IE_ID]); buf = nla_data(tb[WL1271_TM_ATTR_DATA]); buf_len = nla_len(tb[WL1271_TM_ATTR_DATA]); if (buf_len > sizeof(struct wl1271_command)) return -EMSGSIZE; mutex_lock(&wl->mutex); ret = wl1271_cmd_configure(wl, ie_id, buf, buf_len); mutex_unlock(&wl->mutex); if (ret < 0) { wl1271_warning("testmode cmd configure failed: %d", ret); return ret; } return 0; } static int wl1271_tm_cmd_set_plt_mode(struct wl1271 *wl, struct nlattr *tb[]) { u32 val; int ret; wl1271_debug(DEBUG_TESTMODE, "testmode cmd set plt mode"); if (!tb[WL1271_TM_ATTR_PLT_MODE]) return -EINVAL; val = nla_get_u32(tb[WL1271_TM_ATTR_PLT_MODE]); switch (val) { case 0: ret = wl1271_plt_stop(wl); break; case 1: ret = wl1271_plt_start(wl); break; default: ret = -EINVAL; break; } return ret; } static int wl1271_tm_cmd_recover(struct wl1271 *wl, struct nlattr *tb[]) { wl1271_debug(DEBUG_TESTMODE, "testmode cmd recover"); wl12xx_queue_recovery_work(wl); return 0; } int wl1271_tm_cmd(struct ieee80211_hw *hw, void *data, int len) { struct wl1271 *wl = hw->priv; struct nlattr *tb[WL1271_TM_ATTR_MAX + 1]; int err; err = nla_parse(tb, WL1271_TM_ATTR_MAX, data, len, wl1271_tm_policy); if (err) return err; if (!tb[WL1271_TM_ATTR_CMD_ID]) return -EINVAL; switch (nla_get_u32(tb[WL1271_TM_ATTR_CMD_ID])) { case WL1271_TM_CMD_TEST: return wl1271_tm_cmd_test(wl, tb); case WL1271_TM_CMD_INTERROGATE: return wl1271_tm_cmd_interrogate(wl, tb); case WL1271_TM_CMD_CONFIGURE: return wl1271_tm_cmd_configure(wl, tb); case WL1271_TM_CMD_SET_PLT_MODE: return wl1271_tm_cmd_set_plt_mode(wl, tb); case WL1271_TM_CMD_RECOVER: return wl1271_tm_cmd_recover(wl, tb); default: return -EOPNOTSUPP; } }