[mirror_ubuntu-bionic-kernel.git] / drivers / net / wireless / wl12xx / 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 "testmode.h"

#include <linux/slab.h>
#include <net/genetlink.h>

#include "wl12xx.h"
#include "acx.h"
#include "reg.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);
	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);
		kfree(cmd);
		return ret;
	}

	skb = cfg80211_testmode_alloc_reply_skb(wl->hw->wiphy, sizeof(*cmd));
	if (!skb) {
		kfree(cmd);
		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_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;
	}
}
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	*/
00d20100	23	#include "testmode.h"
c8c90873	24
5a0e3ad6	25	#include <linux/slab.h>
c8c90873 KV	26	#include <net/genetlink.h>
c8c90873 KV	27
00d20100 SL	28	#include "wl12xx.h"
00d20100 SL	29	#include "acx.h"
bc765bf3	30	#include "reg.h"
c8c90873 KV	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,
c8c90873	39	WL1271_TM_CMD_SET_PLT_MODE,
e285a525	40	WL1271_TM_CMD_RECOVER,
c8c90873 KV	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);
f8afdf48	141	kfree(cmd);
c8c90873 KV	142	return ret;
	143	}
	144
	145	skb = cfg80211_testmode_alloc_reply_skb(wl->hw->wiphy, sizeof(*cmd));
f8afdf48 JL	146	if (!skb) {
f8afdf48 JL	147	kfree(cmd);
c8c90873	148	return -ENOMEM;
f8afdf48	149	}
c8c90873 KV	150
	151	NLA_PUT(skb, WL1271_TM_ATTR_DATA, sizeof(*cmd), cmd);
	152
	153	return 0;
	154
	155	nla_put_failure:
	156	kfree_skb(skb);
	157	return -EMSGSIZE;
	158	}
	159
	160	static int wl1271_tm_cmd_configure(struct wl1271 wl, struct nlattr tb[])
	161	{
	162	int buf_len, ret;
	163	void *buf;
	164	u8 ie_id;
	165
	166	wl1271_debug(DEBUG_TESTMODE, "testmode cmd configure");
	167
	168	if (!tb[WL1271_TM_ATTR_DATA])
	169	return -EINVAL;
	170	if (!tb[WL1271_TM_ATTR_IE_ID])
	171	return -EINVAL;
	172
	173	ie_id = nla_get_u8(tb[WL1271_TM_ATTR_IE_ID]);
	174	buf = nla_data(tb[WL1271_TM_ATTR_DATA]);
	175	buf_len = nla_len(tb[WL1271_TM_ATTR_DATA]);
	176
	177	if (buf_len > sizeof(struct wl1271_command))
	178	return -EMSGSIZE;
	179
	180	mutex_lock(&wl->mutex);
	181	ret = wl1271_cmd_configure(wl, ie_id, buf, buf_len);
	182	mutex_unlock(&wl->mutex);
	183
	184	if (ret < 0) {
	185	wl1271_warning("testmode cmd configure failed: %d", ret);
	186	return ret;
	187	}
	188
	189	return 0;
	190	}
	191
c8c90873 KV	192	static int wl1271_tm_cmd_set_plt_mode(struct wl1271 wl, struct nlattr tb[])
	193	{
	194	u32 val;
	195	int ret;
	196
	197	wl1271_debug(DEBUG_TESTMODE, "testmode cmd set plt mode");
	198
	199	if (!tb[WL1271_TM_ATTR_PLT_MODE])
	200	return -EINVAL;
	201
	202	val = nla_get_u32(tb[WL1271_TM_ATTR_PLT_MODE]);
	203
	204	switch (val) {
	205	case 0:
	206	ret = wl1271_plt_stop(wl);
	207	break;
	208	case 1:
	209	ret = wl1271_plt_start(wl);
	210	break;
	211	default:
	212	ret = -EINVAL;
	213	break;
	214	}
	215
	216	return ret;
	217	}
	218
e285a525 EP	219	static int wl1271_tm_cmd_recover(struct wl1271 wl, struct nlattr tb[])
	220	{
	221	wl1271_debug(DEBUG_TESTMODE, "testmode cmd recover");
	222
baacb9ae	223	wl12xx_queue_recovery_work(wl);
e285a525 EP	224
	225	return 0;
	226	}
	227
c8c90873 KV	228	int wl1271_tm_cmd(struct ieee80211_hw hw, void data, int len)
	229	{
	230	struct wl1271 *wl = hw->priv;
	231	struct nlattr *tb[WL1271_TM_ATTR_MAX + 1];
	232	int err;
	233
	234	err = nla_parse(tb, WL1271_TM_ATTR_MAX, data, len, wl1271_tm_policy);
	235	if (err)
	236	return err;
	237
	238	if (!tb[WL1271_TM_ATTR_CMD_ID])
	239	return -EINVAL;
	240
	241	switch (nla_get_u32(tb[WL1271_TM_ATTR_CMD_ID])) {
	242	case WL1271_TM_CMD_TEST:
	243	return wl1271_tm_cmd_test(wl, tb);
	244	case WL1271_TM_CMD_INTERROGATE:
	245	return wl1271_tm_cmd_interrogate(wl, tb);
	246	case WL1271_TM_CMD_CONFIGURE:
	247	return wl1271_tm_cmd_configure(wl, tb);
c8c90873 KV	248	case WL1271_TM_CMD_SET_PLT_MODE:
c8c90873 KV	249	return wl1271_tm_cmd_set_plt_mode(wl, tb);
e285a525 EP	250	case WL1271_TM_CMD_RECOVER:
e285a525 EP	251	return wl1271_tm_cmd_recover(wl, tb);
c8c90873 KV	252	default:
	253	return -EOPNOTSUPP;
	254	}
	255	}