1/*
2 * Copyright (c) 2018, The Linux Foundation. All rights reserved.
3 *
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
11 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
13 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
14 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17#include <net/netlink.h>
18#include <linux/firmware.h>
19#include <net/cfg80211.h>
20#include "wcn36xx.h"
21
22#include "testmode.h"
23#include "testmode_i.h"
24#include "hal.h"
25#include "smd.h"
26
27static const struct nla_policy wcn36xx_tm_policy[WCN36XX_TM_ATTR_MAX + 1] = {
28	[WCN36XX_TM_ATTR_CMD] = { .type = NLA_U16 },
29	[WCN36XX_TM_ATTR_DATA] = { .type = NLA_BINARY,
30	.len = WCN36XX_TM_DATA_MAX_LEN },
31};
32
33struct build_release_number {
34	u16 drv_major;
35	u16 drv_minor;
36	u16 drv_patch;
37	u16 drv_build;
38	u16 ptt_max;
39	u16 ptt_min;
40	u16 fw_ver;
41} __packed;
42
43static int wcn36xx_tm_cmd_ptt(struct wcn36xx *wcn, struct ieee80211_vif *vif,
44			      struct nlattr *tb[])
45{
46	int ret = 0, buf_len;
47	void *buf;
48	struct ftm_rsp_msg *msg, *rsp = NULL;
49	struct sk_buff *skb;
50
51	if (!tb[WCN36XX_TM_ATTR_DATA])
52		return -EINVAL;
53
54	buf = nla_data(tb[WCN36XX_TM_ATTR_DATA]);
55	buf_len = nla_len(tb[WCN36XX_TM_ATTR_DATA]);
56	msg = buf;
57
58	wcn36xx_dbg(WCN36XX_DBG_TESTMODE,
59		    "testmode cmd wmi msg_id 0x%04X msg_len %d buf %pK buf_len %d\n",
60		   msg->msg_id, msg->msg_body_length,
61		   buf, buf_len);
62
63	wcn36xx_dbg_dump(WCN36XX_DBG_TESTMODE_DUMP, "REQ ", buf, buf_len);
64
65	if (msg->msg_id == MSG_GET_BUILD_RELEASE_NUMBER) {
66		struct build_release_number *body =
67				(struct build_release_number *)
68				msg->msg_response;
69
70		body->drv_major = wcn->fw_major;
71		body->drv_minor = wcn->fw_minor;
72		body->drv_patch = wcn->fw_version;
73		body->drv_build = wcn->fw_revision;
74		body->ptt_max = 10;
75		body->ptt_min = 0;
76
77		rsp = msg;
78		rsp->resp_status = 0;
79	} else {
80		wcn36xx_dbg(WCN36XX_DBG_TESTMODE,
81			    "PPT Request >> HAL size %d\n",
82				msg->msg_body_length);
83
84		msg->resp_status = wcn36xx_smd_process_ptt_msg(wcn, vif, msg,
85							       msg->msg_body_length, (void *)(&rsp));
86
87		wcn36xx_dbg(WCN36XX_DBG_TESTMODE,
88			    "Response status = %d\n",
89				msg->resp_status);
90		if (rsp)
91			wcn36xx_dbg(WCN36XX_DBG_TESTMODE,
92				    "PPT Response << HAL size %d\n",
93					rsp->msg_body_length);
94	}
95
96	if (!rsp) {
97		rsp = msg;
98		wcn36xx_warn("No response! Echoing request with response status %d\n",
99			     rsp->resp_status);
100	}
101	wcn36xx_dbg_dump(WCN36XX_DBG_TESTMODE_DUMP, "RSP ",
102			 rsp, rsp->msg_body_length);
103
104	skb = cfg80211_testmode_alloc_reply_skb(wcn->hw->wiphy,
105						nla_total_size(msg->msg_body_length));
106	if (!skb) {
107		ret = -ENOMEM;
108		goto out;
109	}
110
111	ret = nla_put(skb, WCN36XX_TM_ATTR_DATA, rsp->msg_body_length, rsp);
112	if (ret) {
113		kfree_skb(skb);
114		goto out;
115	}
116
117	ret = cfg80211_testmode_reply(skb);
118
119out:
120	if (rsp != msg)
121		kfree(rsp);
122
123	return ret;
124}
125
126int wcn36xx_tm_cmd(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
127		   void *data, int len)
128{
129	struct wcn36xx *wcn = hw->priv;
130	struct nlattr *tb[WCN36XX_TM_ATTR_MAX + 1];
131	int ret = 0;
132	unsigned short attr;
133
134	wcn36xx_dbg_dump(WCN36XX_DBG_TESTMODE_DUMP, "Data:", data, len);
135	ret = nla_parse_deprecated(tb, WCN36XX_TM_ATTR_MAX, data, len,
136				   wcn36xx_tm_policy, NULL);
137	if (ret)
138		return ret;
139
140	if (!tb[WCN36XX_TM_ATTR_CMD])
141		return -EINVAL;
142
143	attr = nla_get_u16(tb[WCN36XX_TM_ATTR_CMD]);
144
145	if (attr != WCN36XX_TM_CMD_PTT)
146		return -EOPNOTSUPP;
147
148	return wcn36xx_tm_cmd_ptt(wcn, vif, tb);
149}
150