Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
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linux
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * This file is part of wl1271
4 *
5 * Copyright (C) 2010 Nokia Corporation
6 *
7 * Contact: Luciano Coelho <luciano.coelho@nokia.com>
8 */
9#include "testmode.h"
10
11#include <linux/pm_runtime.h>
12#include <linux/slab.h>
13#include <net/genetlink.h>
14
15#include "wlcore.h"
16#include "debug.h"
17#include "acx.h"
18#include "io.h"
19
20#define WL1271_TM_MAX_DATA_LENGTH 1024
21
22enum wl1271_tm_commands {
23 WL1271_TM_CMD_UNSPEC,
24 WL1271_TM_CMD_TEST,
25 WL1271_TM_CMD_INTERROGATE,
26 WL1271_TM_CMD_CONFIGURE,
27 WL1271_TM_CMD_NVS_PUSH, /* Not in use. Keep to not break ABI */
28 WL1271_TM_CMD_SET_PLT_MODE,
29 WL1271_TM_CMD_RECOVER, /* Not in use. Keep to not break ABI */
30 WL1271_TM_CMD_GET_MAC,
31
32 __WL1271_TM_CMD_AFTER_LAST
33};
34#define WL1271_TM_CMD_MAX (__WL1271_TM_CMD_AFTER_LAST - 1)
35
36enum wl1271_tm_attrs {
37 WL1271_TM_ATTR_UNSPEC,
38 WL1271_TM_ATTR_CMD_ID,
39 WL1271_TM_ATTR_ANSWER,
40 WL1271_TM_ATTR_DATA,
41 WL1271_TM_ATTR_IE_ID,
42 WL1271_TM_ATTR_PLT_MODE,
43
44 __WL1271_TM_ATTR_AFTER_LAST
45};
46#define WL1271_TM_ATTR_MAX (__WL1271_TM_ATTR_AFTER_LAST - 1)
47
48static const struct nla_policy wl1271_tm_policy[WL1271_TM_ATTR_MAX + 1] = {
49 [WL1271_TM_ATTR_CMD_ID] = { .type = NLA_U32 },
50 [WL1271_TM_ATTR_ANSWER] = { .type = NLA_U8 },
51 [WL1271_TM_ATTR_DATA] = { .type = NLA_BINARY,
52 .len = WL1271_TM_MAX_DATA_LENGTH },
53 [WL1271_TM_ATTR_IE_ID] = { .type = NLA_U32 },
54 [WL1271_TM_ATTR_PLT_MODE] = { .type = NLA_U32 },
55};
56
57
58static int wl1271_tm_cmd_test(struct wl1271 *wl, struct nlattr *tb[])
59{
60 int buf_len, ret, len;
61 struct sk_buff *skb;
62 void *buf;
63 u8 answer = 0;
64
65 wl1271_debug(DEBUG_TESTMODE, "testmode cmd test");
66
67 if (!tb[WL1271_TM_ATTR_DATA])
68 return -EINVAL;
69
70 buf = nla_data(tb[WL1271_TM_ATTR_DATA]);
71 buf_len = nla_len(tb[WL1271_TM_ATTR_DATA]);
72
73 if (tb[WL1271_TM_ATTR_ANSWER])
74 answer = nla_get_u8(tb[WL1271_TM_ATTR_ANSWER]);
75
76 if (buf_len > sizeof(struct wl1271_command))
77 return -EMSGSIZE;
78
79 mutex_lock(&wl->mutex);
80
81 if (unlikely(wl->state != WLCORE_STATE_ON)) {
82 ret = -EINVAL;
83 goto out;
84 }
85
86 ret = pm_runtime_resume_and_get(wl->dev);
87 if (ret < 0)
88 goto out;
89
90 ret = wl1271_cmd_test(wl, buf, buf_len, answer);
91 if (ret < 0) {
92 wl1271_warning("testmode cmd test failed: %d", ret);
93 goto out_sleep;
94 }
95
96 if (answer) {
97 /* If we got bip calibration answer print radio status */
98 struct wl1271_cmd_cal_p2g *params =
99 (struct wl1271_cmd_cal_p2g *) buf;
100
101 s16 radio_status = (s16) le16_to_cpu(params->radio_status);
102
103 if (params->test.id == TEST_CMD_P2G_CAL &&
104 radio_status < 0)
105 wl1271_warning("testmode cmd: radio status=%d",
106 radio_status);
107 else
108 wl1271_info("testmode cmd: radio status=%d",
109 radio_status);
110
111 len = nla_total_size(buf_len);
112 skb = cfg80211_testmode_alloc_reply_skb(wl->hw->wiphy, len);
113 if (!skb) {
114 ret = -ENOMEM;
115 goto out_sleep;
116 }
117
118 if (nla_put(skb, WL1271_TM_ATTR_DATA, buf_len, buf)) {
119 kfree_skb(skb);
120 ret = -EMSGSIZE;
121 goto out_sleep;
122 }
123
124 ret = cfg80211_testmode_reply(skb);
125 if (ret < 0)
126 goto out_sleep;
127 }
128
129out_sleep:
130 pm_runtime_put_autosuspend(wl->dev);
131out:
132 mutex_unlock(&wl->mutex);
133
134 return ret;
135}
136
137static int wl1271_tm_cmd_interrogate(struct wl1271 *wl, struct nlattr *tb[])
138{
139 int ret;
140 struct wl1271_command *cmd;
141 struct sk_buff *skb;
142 u8 ie_id;
143
144 wl1271_debug(DEBUG_TESTMODE, "testmode cmd interrogate");
145
146 if (!tb[WL1271_TM_ATTR_IE_ID])
147 return -EINVAL;
148
149 ie_id = nla_get_u8(tb[WL1271_TM_ATTR_IE_ID]);
150
151 mutex_lock(&wl->mutex);
152
153 if (unlikely(wl->state != WLCORE_STATE_ON)) {
154 ret = -EINVAL;
155 goto out;
156 }
157
158 ret = pm_runtime_resume_and_get(wl->dev);
159 if (ret < 0)
160 goto out;
161
162 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
163 if (!cmd) {
164 ret = -ENOMEM;
165 goto out_sleep;
166 }
167
168 ret = wl1271_cmd_interrogate(wl, ie_id, cmd,
169 sizeof(struct acx_header), sizeof(*cmd));
170 if (ret < 0) {
171 wl1271_warning("testmode cmd interrogate failed: %d", ret);
172 goto out_free;
173 }
174
175 skb = cfg80211_testmode_alloc_reply_skb(wl->hw->wiphy, sizeof(*cmd));
176 if (!skb) {
177 ret = -ENOMEM;
178 goto out_free;
179 }
180
181 if (nla_put(skb, WL1271_TM_ATTR_DATA, sizeof(*cmd), cmd)) {
182 kfree_skb(skb);
183 ret = -EMSGSIZE;
184 goto out_free;
185 }
186
187 ret = cfg80211_testmode_reply(skb);
188 if (ret < 0)
189 goto out_free;
190
191out_free:
192 kfree(cmd);
193out_sleep:
194 pm_runtime_put_autosuspend(wl->dev);
195out:
196 mutex_unlock(&wl->mutex);
197
198 return ret;
199}
200
201static int wl1271_tm_cmd_configure(struct wl1271 *wl, struct nlattr *tb[])
202{
203 int buf_len, ret;
204 void *buf;
205 u8 ie_id;
206
207 wl1271_debug(DEBUG_TESTMODE, "testmode cmd configure");
208
209 if (!tb[WL1271_TM_ATTR_DATA])
210 return -EINVAL;
211 if (!tb[WL1271_TM_ATTR_IE_ID])
212 return -EINVAL;
213
214 ie_id = nla_get_u8(tb[WL1271_TM_ATTR_IE_ID]);
215 buf = nla_data(tb[WL1271_TM_ATTR_DATA]);
216 buf_len = nla_len(tb[WL1271_TM_ATTR_DATA]);
217
218 if (buf_len > sizeof(struct wl1271_command))
219 return -EMSGSIZE;
220
221 mutex_lock(&wl->mutex);
222 ret = wl1271_cmd_configure(wl, ie_id, buf, buf_len);
223 mutex_unlock(&wl->mutex);
224
225 if (ret < 0) {
226 wl1271_warning("testmode cmd configure failed: %d", ret);
227 return ret;
228 }
229
230 return 0;
231}
232
233static int wl1271_tm_detect_fem(struct wl1271 *wl, struct nlattr *tb[])
234{
235 /* return FEM type */
236 int ret, len;
237 struct sk_buff *skb;
238
239 ret = wl1271_plt_start(wl, PLT_FEM_DETECT);
240 if (ret < 0)
241 goto out;
242
243 mutex_lock(&wl->mutex);
244
245 len = nla_total_size(sizeof(wl->fem_manuf));
246 skb = cfg80211_testmode_alloc_reply_skb(wl->hw->wiphy, len);
247 if (!skb) {
248 ret = -ENOMEM;
249 goto out_mutex;
250 }
251
252 if (nla_put(skb, WL1271_TM_ATTR_DATA, sizeof(wl->fem_manuf),
253 &wl->fem_manuf)) {
254 kfree_skb(skb);
255 ret = -EMSGSIZE;
256 goto out_mutex;
257 }
258
259 ret = cfg80211_testmode_reply(skb);
260
261out_mutex:
262 mutex_unlock(&wl->mutex);
263
264 /* We always stop plt after DETECT mode */
265 wl1271_plt_stop(wl);
266out:
267 return ret;
268}
269
270static int wl1271_tm_cmd_set_plt_mode(struct wl1271 *wl, struct nlattr *tb[])
271{
272 u32 val;
273 int ret;
274
275 wl1271_debug(DEBUG_TESTMODE, "testmode cmd set plt mode");
276
277 if (!tb[WL1271_TM_ATTR_PLT_MODE])
278 return -EINVAL;
279
280 val = nla_get_u32(tb[WL1271_TM_ATTR_PLT_MODE]);
281
282 switch (val) {
283 case PLT_OFF:
284 ret = wl1271_plt_stop(wl);
285 break;
286 case PLT_ON:
287 case PLT_CHIP_AWAKE:
288 ret = wl1271_plt_start(wl, val);
289 break;
290 case PLT_FEM_DETECT:
291 ret = wl1271_tm_detect_fem(wl, tb);
292 break;
293 default:
294 ret = -EINVAL;
295 break;
296 }
297
298 return ret;
299}
300
301static int wl12xx_tm_cmd_get_mac(struct wl1271 *wl, struct nlattr *tb[])
302{
303 struct sk_buff *skb;
304 u8 mac_addr[ETH_ALEN];
305 int ret = 0;
306
307 mutex_lock(&wl->mutex);
308
309 if (!wl->plt) {
310 ret = -EINVAL;
311 goto out;
312 }
313
314 if (wl->fuse_oui_addr == 0 && wl->fuse_nic_addr == 0) {
315 ret = -EOPNOTSUPP;
316 goto out;
317 }
318
319 mac_addr[0] = (u8)(wl->fuse_oui_addr >> 16);
320 mac_addr[1] = (u8)(wl->fuse_oui_addr >> 8);
321 mac_addr[2] = (u8) wl->fuse_oui_addr;
322 mac_addr[3] = (u8)(wl->fuse_nic_addr >> 16);
323 mac_addr[4] = (u8)(wl->fuse_nic_addr >> 8);
324 mac_addr[5] = (u8) wl->fuse_nic_addr;
325
326 skb = cfg80211_testmode_alloc_reply_skb(wl->hw->wiphy, ETH_ALEN);
327 if (!skb) {
328 ret = -ENOMEM;
329 goto out;
330 }
331
332 if (nla_put(skb, WL1271_TM_ATTR_DATA, ETH_ALEN, mac_addr)) {
333 kfree_skb(skb);
334 ret = -EMSGSIZE;
335 goto out;
336 }
337
338 ret = cfg80211_testmode_reply(skb);
339 if (ret < 0)
340 goto out;
341
342out:
343 mutex_unlock(&wl->mutex);
344 return ret;
345}
346
347int wl1271_tm_cmd(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
348 void *data, int len)
349{
350 struct wl1271 *wl = hw->priv;
351 struct nlattr *tb[WL1271_TM_ATTR_MAX + 1];
352 u32 nla_cmd;
353 int err;
354
355 err = nla_parse_deprecated(tb, WL1271_TM_ATTR_MAX, data, len,
356 wl1271_tm_policy, NULL);
357 if (err)
358 return err;
359
360 if (!tb[WL1271_TM_ATTR_CMD_ID])
361 return -EINVAL;
362
363 nla_cmd = nla_get_u32(tb[WL1271_TM_ATTR_CMD_ID]);
364
365 /* Only SET_PLT_MODE is allowed in case of mode PLT_CHIP_AWAKE */
366 if (wl->plt_mode == PLT_CHIP_AWAKE &&
367 nla_cmd != WL1271_TM_CMD_SET_PLT_MODE)
368 return -EOPNOTSUPP;
369
370 switch (nla_cmd) {
371 case WL1271_TM_CMD_TEST:
372 return wl1271_tm_cmd_test(wl, tb);
373 case WL1271_TM_CMD_INTERROGATE:
374 return wl1271_tm_cmd_interrogate(wl, tb);
375 case WL1271_TM_CMD_CONFIGURE:
376 return wl1271_tm_cmd_configure(wl, tb);
377 case WL1271_TM_CMD_SET_PLT_MODE:
378 return wl1271_tm_cmd_set_plt_mode(wl, tb);
379 case WL1271_TM_CMD_GET_MAC:
380 return wl12xx_tm_cmd_get_mac(wl, tb);
381 default:
382 return -EOPNOTSUPP;
383 }
384}