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
27 static 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
33 struct 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
wcn36xx_tm_cmd_ptt(struct wcn36xx * wcn,struct ieee80211_vif * vif,struct nlattr * tb[])43 static 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 = (struct ftm_rsp_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
119 out:
120 if (rsp != msg)
121 kfree(rsp);
122
123 return ret;
124 }
125
wcn36xx_tm_cmd(struct ieee80211_hw * hw,struct ieee80211_vif * vif,void * data,int len)126 int 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