linux/drivers/net/wireless/ath/wcn36xx/testmode.c

150 lines
3.9 KiB
C

/*
* Copyright (c) 2018, The Linux Foundation. All rights reserved.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <net/netlink.h>
#include <linux/firmware.h>
#include <net/cfg80211.h>
#include "wcn36xx.h"
#include "testmode.h"
#include "testmode_i.h"
#include "hal.h"
#include "smd.h"
static const struct nla_policy wcn36xx_tm_policy[WCN36XX_TM_ATTR_MAX + 1] = {
[WCN36XX_TM_ATTR_CMD] = { .type = NLA_U16 },
[WCN36XX_TM_ATTR_DATA] = { .type = NLA_BINARY,
.len = WCN36XX_TM_DATA_MAX_LEN },
};
struct build_release_number {
u16 drv_major;
u16 drv_minor;
u16 drv_patch;
u16 drv_build;
u16 ptt_max;
u16 ptt_min;
u16 fw_ver;
} __packed;
static int wcn36xx_tm_cmd_ptt(struct wcn36xx *wcn, struct ieee80211_vif *vif,
struct nlattr *tb[])
{
int ret = 0, buf_len;
void *buf;
struct ftm_rsp_msg *msg, *rsp = NULL;
struct sk_buff *skb;
if (!tb[WCN36XX_TM_ATTR_DATA])
return -EINVAL;
buf = nla_data(tb[WCN36XX_TM_ATTR_DATA]);
buf_len = nla_len(tb[WCN36XX_TM_ATTR_DATA]);
msg = (struct ftm_rsp_msg *)buf;
wcn36xx_dbg(WCN36XX_DBG_TESTMODE,
"testmode cmd wmi msg_id 0x%04X msg_len %d buf %pK buf_len %d\n",
msg->msg_id, msg->msg_body_length,
buf, buf_len);
wcn36xx_dbg_dump(WCN36XX_DBG_TESTMODE_DUMP, "REQ ", buf, buf_len);
if (msg->msg_id == MSG_GET_BUILD_RELEASE_NUMBER) {
struct build_release_number *body =
(struct build_release_number *)
msg->msg_response;
body->drv_major = wcn->fw_major;
body->drv_minor = wcn->fw_minor;
body->drv_patch = wcn->fw_version;
body->drv_build = wcn->fw_revision;
body->ptt_max = 10;
body->ptt_min = 0;
rsp = msg;
rsp->resp_status = 0;
} else {
wcn36xx_dbg(WCN36XX_DBG_TESTMODE,
"PPT Request >> HAL size %d\n",
msg->msg_body_length);
msg->resp_status = wcn36xx_smd_process_ptt_msg(wcn, vif, msg,
msg->msg_body_length, (void *)(&rsp));
wcn36xx_dbg(WCN36XX_DBG_TESTMODE,
"Response status = %d\n",
msg->resp_status);
if (rsp)
wcn36xx_dbg(WCN36XX_DBG_TESTMODE,
"PPT Response << HAL size %d\n",
rsp->msg_body_length);
}
if (!rsp) {
rsp = msg;
wcn36xx_warn("No response! Echoing request with response status %d\n",
rsp->resp_status);
}
wcn36xx_dbg_dump(WCN36XX_DBG_TESTMODE_DUMP, "RSP ",
rsp, rsp->msg_body_length);
skb = cfg80211_testmode_alloc_reply_skb(wcn->hw->wiphy,
nla_total_size(msg->msg_body_length));
if (!skb) {
ret = -ENOMEM;
goto out;
}
ret = nla_put(skb, WCN36XX_TM_ATTR_DATA, rsp->msg_body_length, rsp);
if (ret) {
kfree_skb(skb);
goto out;
}
ret = cfg80211_testmode_reply(skb);
out:
if (rsp != msg)
kfree(rsp);
return ret;
}
int wcn36xx_tm_cmd(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
void *data, int len)
{
struct wcn36xx *wcn = hw->priv;
struct nlattr *tb[WCN36XX_TM_ATTR_MAX + 1];
int ret = 0;
unsigned short attr;
wcn36xx_dbg_dump(WCN36XX_DBG_TESTMODE_DUMP, "Data:", data, len);
ret = nla_parse_deprecated(tb, WCN36XX_TM_ATTR_MAX, data, len,
wcn36xx_tm_policy, NULL);
if (ret)
return ret;
if (!tb[WCN36XX_TM_ATTR_CMD])
return -EINVAL;
attr = nla_get_u16(tb[WCN36XX_TM_ATTR_CMD]);
if (attr != WCN36XX_TM_CMD_PTT)
return -EOPNOTSUPP;
return wcn36xx_tm_cmd_ptt(wcn, vif, tb);
}