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/*
* This file is part of wl1271
*
* Copyright (C) 2010 Nokia Corporation
*
* Contact: Luciano Coelho <luciano.coelho@nokia.com>
*
* 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 "wl1271_testmode.h"
#include <linux/slab.h>
#include <net/genetlink.h>
#include "wl1271.h"
#include "wl1271_acx.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_NVS_PUSH,
WL1271_TM_CMD_SET_PLT_MODE,
__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);
ret = wl1271_cmd_test(wl, buf, buf_len, answer);
mutex_unlock(&wl->mutex);
if (ret < 0) {
wl1271_warning("testmode cmd test failed: %d", ret);
return ret;
}
if (answer) {
len = nla_total_size(buf_len);
skb = cfg80211_testmode_alloc_reply_skb(wl->hw->wiphy, len);
if (!skb)
return -ENOMEM;
NLA_PUT(skb, WL1271_TM_ATTR_DATA, buf_len, buf);
ret = cfg80211_testmode_reply(skb);
if (ret < 0)
return ret;
}
return 0;
nla_put_failure:
kfree_skb(skb);
return -EMSGSIZE;
}
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]);
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
if (!cmd)
return -ENOMEM;
mutex_lock(&wl->mutex);
ret = wl1271_cmd_interrogate(wl, ie_id, cmd, sizeof(*cmd));
mutex_unlock(&wl->mutex);
if (ret < 0) {
wl1271_warning("testmode cmd interrogate failed: %d", ret);
return ret;
}
skb = cfg80211_testmode_alloc_reply_skb(wl->hw->wiphy, sizeof(*cmd));
if (!skb)
return -ENOMEM;
NLA_PUT(skb, WL1271_TM_ATTR_DATA, sizeof(*cmd), cmd);
return 0;
nla_put_failure:
kfree_skb(skb);
return -EMSGSIZE;
}
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_nvs_push(struct wl1271 *wl, struct nlattr *tb[])
{
int ret = 0;
size_t len;
void *buf;
wl1271_debug(DEBUG_TESTMODE, "testmode cmd nvs push");
if (!tb[WL1271_TM_ATTR_DATA])
return -EINVAL;
buf = nla_data(tb[WL1271_TM_ATTR_DATA]);
len = nla_len(tb[WL1271_TM_ATTR_DATA]);
if (len != sizeof(struct wl1271_nvs_file)) {
wl1271_error("nvs size is not as expected: %zu != %zu",
len, sizeof(struct wl1271_nvs_file));
return -EMSGSIZE;
}
mutex_lock(&wl->mutex);
kfree(wl->nvs);
wl->nvs = kmalloc(sizeof(struct wl1271_nvs_file), GFP_KERNEL);
if (!wl->nvs) {
wl1271_error("could not allocate memory for the nvs file");
ret = -ENOMEM;
goto out;
}
memcpy(wl->nvs, buf, len);
wl1271_debug(DEBUG_TESTMODE, "testmode pushed nvs");
out:
mutex_unlock(&wl->mutex);
return ret;
}
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;
}
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_NVS_PUSH:
return wl1271_tm_cmd_nvs_push(wl, tb);
case WL1271_TM_CMD_SET_PLT_MODE:
return wl1271_tm_cmd_set_plt_mode(wl, tb);
default:
return -EOPNOTSUPP;
}
}
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