[linux-block.git] / drivers / net / wireless / wl12xx / wl1271_testmode.c

/*
 * 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_spi.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;
	}
}
Commit	Line	Data
c8c90873 KV	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 "wl1271_testmode.h"
	24
5a0e3ad6	25	#include <linux/slab.h>
c8c90873 KV	26	#include <net/genetlink.h>
	27
	28	#include "wl1271.h"
	29	#include "wl1271_spi.h"
	30	#include "wl1271_acx.h"
	31
	32	#define WL1271_TM_MAX_DATA_LENGTH 1024
	33
	34	enum wl1271_tm_commands {
	35	WL1271_TM_CMD_UNSPEC,
	36	WL1271_TM_CMD_TEST,
	37	WL1271_TM_CMD_INTERROGATE,
	38	WL1271_TM_CMD_CONFIGURE,
	39	WL1271_TM_CMD_NVS_PUSH,
	40	WL1271_TM_CMD_SET_PLT_MODE,
	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
	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
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
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
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	if (len != sizeof(struct wl1271_nvs_file)) {
204	wl1271_error("nvs size is not as expected: %zu != %zu",
205	len, sizeof(struct wl1271_nvs_file));
206	return -EMSGSIZE;
207	}
208
209	mutex_lock(&wl->mutex);
210
211	kfree(wl->nvs);
212
213	wl->nvs = kmalloc(sizeof(struct wl1271_nvs_file), GFP_KERNEL);
214	if (!wl->nvs) {
215	wl1271_error("could not allocate memory for the nvs file");
216	ret = -ENOMEM;
217	goto out;
218	}
219
220	memcpy(wl->nvs, buf, len);
221
222	wl1271_debug(DEBUG_TESTMODE, "testmode pushed nvs");
223
224	out:
225	mutex_unlock(&wl->mutex);
226
227	return ret;
228	}
229
230	static int wl1271_tm_cmd_set_plt_mode(struct wl1271 wl, struct nlattr tb[])
231	{
232	u32 val;
233	int ret;
234
235	wl1271_debug(DEBUG_TESTMODE, "testmode cmd set plt mode");
236
237	if (!tb[WL1271_TM_ATTR_PLT_MODE])
238	return -EINVAL;
239
240	val = nla_get_u32(tb[WL1271_TM_ATTR_PLT_MODE]);
241
242	switch (val) {
243	case 0:
244	ret = wl1271_plt_stop(wl);
245	break;
246	case 1:
247	ret = wl1271_plt_start(wl);
248	break;
249	default:
250	ret = -EINVAL;
251	break;
252	}
253
254	return ret;
255	}
256
257	int wl1271_tm_cmd(struct ieee80211_hw hw, void data, int len)
258	{
259	struct wl1271 *wl = hw->priv;
260	struct nlattr *tb[WL1271_TM_ATTR_MAX + 1];
261	int err;
262
263	err = nla_parse(tb, WL1271_TM_ATTR_MAX, data, len, wl1271_tm_policy);
264	if (err)
265	return err;
266
267	if (!tb[WL1271_TM_ATTR_CMD_ID])
268	return -EINVAL;
269
270	switch (nla_get_u32(tb[WL1271_TM_ATTR_CMD_ID])) {
271	case WL1271_TM_CMD_TEST:
272	return wl1271_tm_cmd_test(wl, tb);
273	case WL1271_TM_CMD_INTERROGATE:
274	return wl1271_tm_cmd_interrogate(wl, tb);
275	case WL1271_TM_CMD_CONFIGURE:
276	return wl1271_tm_cmd_configure(wl, tb);
277	case WL1271_TM_CMD_NVS_PUSH:
278	return wl1271_tm_cmd_nvs_push(wl, tb);
279	case WL1271_TM_CMD_SET_PLT_MODE:
280	return wl1271_tm_cmd_set_plt_mode(wl, tb);
281	default:
282	return -EOPNOTSUPP;
283	}
284	}