1 /*
2 * This file is part of wl1271
3 *
4 * Copyright (C) 2010 Nokia Corporation
5 *
6 * Contact: Luciano Coelho <luciano.coelho@nokia.com>
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * version 2 as published by the Free Software Foundation.
11 *
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20 * 02110-1301 USA
21 *
22 */
23 #include "testmode.h"
24
25 #include <linux/slab.h>
26 #include <net/genetlink.h>
27
28 #include "wl12xx.h"
29 #include "acx.h"
30
31 #define WL1271_TM_MAX_DATA_LENGTH 1024
32
33 enum wl1271_tm_commands {
34 WL1271_TM_CMD_UNSPEC,
35 WL1271_TM_CMD_TEST,
36 WL1271_TM_CMD_INTERROGATE,
37 WL1271_TM_CMD_CONFIGURE,
38 WL1271_TM_CMD_NVS_PUSH,
39 WL1271_TM_CMD_SET_PLT_MODE,
40 WL1271_TM_CMD_RECOVER,
41
42 __WL1271_TM_CMD_AFTER_LAST
43 };
44 #define WL1271_TM_CMD_MAX (__WL1271_TM_CMD_AFTER_LAST - 1)
45
46 enum wl1271_tm_attrs {
47 WL1271_TM_ATTR_UNSPEC,
48 WL1271_TM_ATTR_CMD_ID,
49 WL1271_TM_ATTR_ANSWER,
50 WL1271_TM_ATTR_DATA,
51 WL1271_TM_ATTR_IE_ID,
52 WL1271_TM_ATTR_PLT_MODE,
53
54 __WL1271_TM_ATTR_AFTER_LAST
55 };
56 #define WL1271_TM_ATTR_MAX (__WL1271_TM_ATTR_AFTER_LAST - 1)
57
58 static struct nla_policy wl1271_tm_policy[WL1271_TM_ATTR_MAX + 1] = {
59 [WL1271_TM_ATTR_CMD_ID] = { .type = NLA_U32 },
60 [WL1271_TM_ATTR_ANSWER] = { .type = NLA_U8 },
61 [WL1271_TM_ATTR_DATA] = { .type = NLA_BINARY,
62 .len = WL1271_TM_MAX_DATA_LENGTH },
63 [WL1271_TM_ATTR_IE_ID] = { .type = NLA_U32 },
64 [WL1271_TM_ATTR_PLT_MODE] = { .type = NLA_U32 },
65 };
66
67
wl1271_tm_cmd_test(struct wl1271 * wl,struct nlattr * tb[])68 static int wl1271_tm_cmd_test(struct wl1271 *wl, struct nlattr *tb[])
69 {
70 int buf_len, ret, len;
71 struct sk_buff *skb;
72 void *buf;
73 u8 answer = 0;
74
75 wl1271_debug(DEBUG_TESTMODE, "testmode cmd test");
76
77 if (!tb[WL1271_TM_ATTR_DATA])
78 return -EINVAL;
79
80 buf = nla_data(tb[WL1271_TM_ATTR_DATA]);
81 buf_len = nla_len(tb[WL1271_TM_ATTR_DATA]);
82
83 if (tb[WL1271_TM_ATTR_ANSWER])
84 answer = nla_get_u8(tb[WL1271_TM_ATTR_ANSWER]);
85
86 if (buf_len > sizeof(struct wl1271_command))
87 return -EMSGSIZE;
88
89 mutex_lock(&wl->mutex);
90 ret = wl1271_cmd_test(wl, buf, buf_len, answer);
91 mutex_unlock(&wl->mutex);
92
93 if (ret < 0) {
94 wl1271_warning("testmode cmd test failed: %d", ret);
95 return ret;
96 }
97
98 if (answer) {
99 len = nla_total_size(buf_len);
100 skb = cfg80211_testmode_alloc_reply_skb(wl->hw->wiphy, len);
101 if (!skb)
102 return -ENOMEM;
103
104 NLA_PUT(skb, WL1271_TM_ATTR_DATA, buf_len, buf);
105 ret = cfg80211_testmode_reply(skb);
106 if (ret < 0)
107 return ret;
108 }
109
110 return 0;
111
112 nla_put_failure:
113 kfree_skb(skb);
114 return -EMSGSIZE;
115 }
116
wl1271_tm_cmd_interrogate(struct wl1271 * wl,struct nlattr * tb[])117 static int wl1271_tm_cmd_interrogate(struct wl1271 *wl, struct nlattr *tb[])
118 {
119 int ret;
120 struct wl1271_command *cmd;
121 struct sk_buff *skb;
122 u8 ie_id;
123
124 wl1271_debug(DEBUG_TESTMODE, "testmode cmd interrogate");
125
126 if (!tb[WL1271_TM_ATTR_IE_ID])
127 return -EINVAL;
128
129 ie_id = nla_get_u8(tb[WL1271_TM_ATTR_IE_ID]);
130
131 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
132 if (!cmd)
133 return -ENOMEM;
134
135 mutex_lock(&wl->mutex);
136 ret = wl1271_cmd_interrogate(wl, ie_id, cmd, sizeof(*cmd));
137 mutex_unlock(&wl->mutex);
138
139 if (ret < 0) {
140 wl1271_warning("testmode cmd interrogate failed: %d", ret);
141 return ret;
142 }
143
144 skb = cfg80211_testmode_alloc_reply_skb(wl->hw->wiphy, sizeof(*cmd));
145 if (!skb)
146 return -ENOMEM;
147
148 NLA_PUT(skb, WL1271_TM_ATTR_DATA, sizeof(*cmd), cmd);
149
150 return 0;
151
152 nla_put_failure:
153 kfree_skb(skb);
154 return -EMSGSIZE;
155 }
156
wl1271_tm_cmd_configure(struct wl1271 * wl,struct nlattr * tb[])157 static int wl1271_tm_cmd_configure(struct wl1271 *wl, struct nlattr *tb[])
158 {
159 int buf_len, ret;
160 void *buf;
161 u8 ie_id;
162
163 wl1271_debug(DEBUG_TESTMODE, "testmode cmd configure");
164
165 if (!tb[WL1271_TM_ATTR_DATA])
166 return -EINVAL;
167 if (!tb[WL1271_TM_ATTR_IE_ID])
168 return -EINVAL;
169
170 ie_id = nla_get_u8(tb[WL1271_TM_ATTR_IE_ID]);
171 buf = nla_data(tb[WL1271_TM_ATTR_DATA]);
172 buf_len = nla_len(tb[WL1271_TM_ATTR_DATA]);
173
174 if (buf_len > sizeof(struct wl1271_command))
175 return -EMSGSIZE;
176
177 mutex_lock(&wl->mutex);
178 ret = wl1271_cmd_configure(wl, ie_id, buf, buf_len);
179 mutex_unlock(&wl->mutex);
180
181 if (ret < 0) {
182 wl1271_warning("testmode cmd configure failed: %d", ret);
183 return ret;
184 }
185
186 return 0;
187 }
188
wl1271_tm_cmd_nvs_push(struct wl1271 * wl,struct nlattr * tb[])189 static int wl1271_tm_cmd_nvs_push(struct wl1271 *wl, struct nlattr *tb[])
190 {
191 int ret = 0;
192 size_t len;
193 void *buf;
194
195 wl1271_debug(DEBUG_TESTMODE, "testmode cmd nvs push");
196
197 if (!tb[WL1271_TM_ATTR_DATA])
198 return -EINVAL;
199
200 buf = nla_data(tb[WL1271_TM_ATTR_DATA]);
201 len = nla_len(tb[WL1271_TM_ATTR_DATA]);
202
203 mutex_lock(&wl->mutex);
204
205 kfree(wl->nvs);
206
207 if (len != sizeof(struct wl1271_nvs_file))
208 return -EINVAL;
209
210 wl->nvs = kzalloc(len, GFP_KERNEL);
211 if (!wl->nvs) {
212 wl1271_error("could not allocate memory for the nvs file");
213 ret = -ENOMEM;
214 goto out;
215 }
216
217 memcpy(wl->nvs, buf, len);
218 wl->nvs_len = len;
219
220 wl1271_debug(DEBUG_TESTMODE, "testmode pushed nvs");
221
222 out:
223 mutex_unlock(&wl->mutex);
224
225 return ret;
226 }
227
wl1271_tm_cmd_set_plt_mode(struct wl1271 * wl,struct nlattr * tb[])228 static int wl1271_tm_cmd_set_plt_mode(struct wl1271 *wl, struct nlattr *tb[])
229 {
230 u32 val;
231 int ret;
232
233 wl1271_debug(DEBUG_TESTMODE, "testmode cmd set plt mode");
234
235 if (!tb[WL1271_TM_ATTR_PLT_MODE])
236 return -EINVAL;
237
238 val = nla_get_u32(tb[WL1271_TM_ATTR_PLT_MODE]);
239
240 switch (val) {
241 case 0:
242 ret = wl1271_plt_stop(wl);
243 break;
244 case 1:
245 ret = wl1271_plt_start(wl);
246 break;
247 default:
248 ret = -EINVAL;
249 break;
250 }
251
252 return ret;
253 }
254
wl1271_tm_cmd_recover(struct wl1271 * wl,struct nlattr * tb[])255 static int wl1271_tm_cmd_recover(struct wl1271 *wl, struct nlattr *tb[])
256 {
257 wl1271_debug(DEBUG_TESTMODE, "testmode cmd recover");
258
259 ieee80211_queue_work(wl->hw, &wl->recovery_work);
260
261 return 0;
262 }
263
wl1271_tm_cmd(struct ieee80211_hw * hw,void * data,int len)264 int wl1271_tm_cmd(struct ieee80211_hw *hw, void *data, int len)
265 {
266 struct wl1271 *wl = hw->priv;
267 struct nlattr *tb[WL1271_TM_ATTR_MAX + 1];
268 int err;
269
270 err = nla_parse(tb, WL1271_TM_ATTR_MAX, data, len, wl1271_tm_policy);
271 if (err)
272 return err;
273
274 if (!tb[WL1271_TM_ATTR_CMD_ID])
275 return -EINVAL;
276
277 switch (nla_get_u32(tb[WL1271_TM_ATTR_CMD_ID])) {
278 case WL1271_TM_CMD_TEST:
279 return wl1271_tm_cmd_test(wl, tb);
280 case WL1271_TM_CMD_INTERROGATE:
281 return wl1271_tm_cmd_interrogate(wl, tb);
282 case WL1271_TM_CMD_CONFIGURE:
283 return wl1271_tm_cmd_configure(wl, tb);
284 case WL1271_TM_CMD_NVS_PUSH:
285 return wl1271_tm_cmd_nvs_push(wl, tb);
286 case WL1271_TM_CMD_SET_PLT_MODE:
287 return wl1271_tm_cmd_set_plt_mode(wl, tb);
288 case WL1271_TM_CMD_RECOVER:
289 return wl1271_tm_cmd_recover(wl, tb);
290 default:
291 return -EOPNOTSUPP;
292 }
293 }
294