/*
 * Copyright (c) 2013 Eugene Krasnikov <k.eugene.e@gmail.com>
 *
 * 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.
 */

#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#include <linux/etherdevice.h>
#include <linux/firmware.h>
#include <linux/bitops.h>
#include <linux/rpmsg.h>
#include "smd.h"

struct wcn36xx_cfg_val {
        u32 cfg_id;
        u32 value;
};

#define WCN36XX_CFG_VAL(id, val) \
{ \
        .cfg_id = WCN36XX_HAL_CFG_ ## id, \
        .value = val \
}

static struct wcn36xx_cfg_val wcn36xx_cfg_vals[] = {
        WCN36XX_CFG_VAL(CURRENT_TX_ANTENNA, 1),
        WCN36XX_CFG_VAL(CURRENT_RX_ANTENNA, 1),
        WCN36XX_CFG_VAL(LOW_GAIN_OVERRIDE, 0),
        WCN36XX_CFG_VAL(POWER_STATE_PER_CHAIN, 785),
        WCN36XX_CFG_VAL(CAL_PERIOD, 5),
        WCN36XX_CFG_VAL(CAL_CONTROL, 1),
        WCN36XX_CFG_VAL(PROXIMITY, 0),
        WCN36XX_CFG_VAL(NETWORK_DENSITY, 3),
        WCN36XX_CFG_VAL(MAX_MEDIUM_TIME, 6000),
        WCN36XX_CFG_VAL(MAX_MPDUS_IN_AMPDU, 64),
        WCN36XX_CFG_VAL(RTS_THRESHOLD, 2347),
        WCN36XX_CFG_VAL(SHORT_RETRY_LIMIT, 6),
        WCN36XX_CFG_VAL(LONG_RETRY_LIMIT, 6),
        WCN36XX_CFG_VAL(FRAGMENTATION_THRESHOLD, 8000),
        WCN36XX_CFG_VAL(DYNAMIC_THRESHOLD_ZERO, 5),
        WCN36XX_CFG_VAL(DYNAMIC_THRESHOLD_ONE, 10),
        WCN36XX_CFG_VAL(DYNAMIC_THRESHOLD_TWO, 15),
        WCN36XX_CFG_VAL(FIXED_RATE, 0),
        WCN36XX_CFG_VAL(RETRYRATE_POLICY, 4),
        WCN36XX_CFG_VAL(RETRYRATE_SECONDARY, 0),
        WCN36XX_CFG_VAL(RETRYRATE_TERTIARY, 0),
        WCN36XX_CFG_VAL(FORCE_POLICY_PROTECTION, 5),
        WCN36XX_CFG_VAL(FIXED_RATE_MULTICAST_24GHZ, 1),
        WCN36XX_CFG_VAL(FIXED_RATE_MULTICAST_5GHZ, 5),
        WCN36XX_CFG_VAL(DEFAULT_RATE_INDEX_5GHZ, 5),
        WCN36XX_CFG_VAL(MAX_BA_SESSIONS, 40),
        WCN36XX_CFG_VAL(PS_DATA_INACTIVITY_TIMEOUT, 200),
        WCN36XX_CFG_VAL(PS_ENABLE_BCN_FILTER, 1),
        WCN36XX_CFG_VAL(PS_ENABLE_RSSI_MONITOR, 1),
        WCN36XX_CFG_VAL(NUM_BEACON_PER_RSSI_AVERAGE, 20),
        WCN36XX_CFG_VAL(STATS_PERIOD, 10),
        WCN36XX_CFG_VAL(CFP_MAX_DURATION, 30000),
        WCN36XX_CFG_VAL(FRAME_TRANS_ENABLED, 0),
        WCN36XX_CFG_VAL(BA_THRESHOLD_HIGH, 128),
        WCN36XX_CFG_VAL(MAX_BA_BUFFERS, 2560),
        WCN36XX_CFG_VAL(DYNAMIC_PS_POLL_VALUE, 0),
        WCN36XX_CFG_VAL(TX_PWR_CTRL_ENABLE, 1),
        WCN36XX_CFG_VAL(ENABLE_CLOSE_LOOP, 1),
        WCN36XX_CFG_VAL(ENABLE_LPWR_IMG_TRANSITION, 0),
        WCN36XX_CFG_VAL(BTC_STATIC_LEN_LE_BT, 120000),
        WCN36XX_CFG_VAL(BTC_STATIC_LEN_LE_WLAN, 30000),
        WCN36XX_CFG_VAL(MAX_ASSOC_LIMIT, 10),
        WCN36XX_CFG_VAL(ENABLE_MCC_ADAPTIVE_SCHEDULER, 0),
};

static int put_cfg_tlv_u32(struct wcn36xx *wcn, size_t *len, u32 id, u32 value)
{
        struct wcn36xx_hal_cfg *entry;
        u32 *val;

        if (*len + sizeof(*entry) + sizeof(u32) >= WCN36XX_HAL_BUF_SIZE) {
                wcn36xx_err("Not enough room for TLV entry\n");
                return -ENOMEM;
        }

        entry = (struct wcn36xx_hal_cfg *) (wcn->hal_buf + *len);
        entry->id = id;
        entry->len = sizeof(u32);
        entry->pad_bytes = 0;
        entry->reserve = 0;

        val = (u32 *) (entry + 1);
        *val = value;

        *len += sizeof(*entry) + sizeof(u32);

        return 0;
}

static void wcn36xx_smd_set_bss_nw_type(struct wcn36xx *wcn,
                struct ieee80211_sta *sta,
                struct wcn36xx_hal_config_bss_params *bss_params)
{
        if (NL80211_BAND_5GHZ == WCN36XX_BAND(wcn))
                bss_params->nw_type = WCN36XX_HAL_11A_NW_TYPE;
        else if (sta && sta->ht_cap.ht_supported)
                bss_params->nw_type = WCN36XX_HAL_11N_NW_TYPE;
        else if (sta && (sta->supp_rates[NL80211_BAND_2GHZ] & 0x7f))
                bss_params->nw_type = WCN36XX_HAL_11G_NW_TYPE;
        else
                bss_params->nw_type = WCN36XX_HAL_11B_NW_TYPE;
}

static inline u8 is_cap_supported(unsigned long caps, unsigned long flag)
{
        return caps & flag ? 1 : 0;
}
static void wcn36xx_smd_set_bss_ht_params(struct ieee80211_vif *vif,
                struct ieee80211_sta *sta,
                struct wcn36xx_hal_config_bss_params *bss_params)
{
        if (sta && sta->ht_cap.ht_supported) {
                unsigned long caps = sta->ht_cap.cap;
                bss_params->ht = sta->ht_cap.ht_supported;
                bss_params->tx_channel_width_set = is_cap_supported(caps,
                        IEEE80211_HT_CAP_SUP_WIDTH_20_40);
                bss_params->lsig_tx_op_protection_full_support =
                        is_cap_supported(caps,
                                         IEEE80211_HT_CAP_LSIG_TXOP_PROT);

                bss_params->ht_oper_mode = vif->bss_conf.ht_operation_mode;
                bss_params->lln_non_gf_coexist =
                        !!(vif->bss_conf.ht_operation_mode &
                           IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT);
                /* IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT */
                bss_params->dual_cts_protection = 0;
                /* IEEE80211_HT_OP_MODE_PROTECTION_20MHZ */
                bss_params->ht20_coexist = 0;
        }
}

static void wcn36xx_smd_set_sta_ht_params(struct ieee80211_sta *sta,
                struct wcn36xx_hal_config_sta_params *sta_params)
{
        if (sta->ht_cap.ht_supported) {
                unsigned long caps = sta->ht_cap.cap;
                sta_params->ht_capable = sta->ht_cap.ht_supported;
                sta_params->tx_channel_width_set = is_cap_supported(caps,
                        IEEE80211_HT_CAP_SUP_WIDTH_20_40);
                sta_params->lsig_txop_protection = is_cap_supported(caps,
                        IEEE80211_HT_CAP_LSIG_TXOP_PROT);

                sta_params->max_ampdu_size = sta->ht_cap.ampdu_factor;
                sta_params->max_ampdu_density = sta->ht_cap.ampdu_density;
                sta_params->max_amsdu_size = is_cap_supported(caps,
                        IEEE80211_HT_CAP_MAX_AMSDU);
                sta_params->sgi_20Mhz = is_cap_supported(caps,
                        IEEE80211_HT_CAP_SGI_20);
                sta_params->sgi_40mhz = is_cap_supported(caps,
                        IEEE80211_HT_CAP_SGI_40);
                sta_params->green_field_capable = is_cap_supported(caps,
                        IEEE80211_HT_CAP_GRN_FLD);
                sta_params->delayed_ba_support = is_cap_supported(caps,
                        IEEE80211_HT_CAP_DELAY_BA);
                sta_params->dsss_cck_mode_40mhz = is_cap_supported(caps,
                        IEEE80211_HT_CAP_DSSSCCK40);
        }
}

static void wcn36xx_smd_set_sta_default_ht_params(
                struct wcn36xx_hal_config_sta_params *sta_params)
{
        sta_params->ht_capable = 1;
        sta_params->tx_channel_width_set = 1;
        sta_params->lsig_txop_protection = 1;
        sta_params->max_ampdu_size = 3;
        sta_params->max_ampdu_density = 5;
        sta_params->max_amsdu_size = 0;
        sta_params->sgi_20Mhz = 1;
        sta_params->sgi_40mhz = 1;
        sta_params->green_field_capable = 1;
        sta_params->delayed_ba_support = 0;
        sta_params->dsss_cck_mode_40mhz = 1;
}

static void wcn36xx_smd_set_sta_params(struct wcn36xx *wcn,
                struct ieee80211_vif *vif,
                struct ieee80211_sta *sta,
                struct wcn36xx_hal_config_sta_params *sta_params)
{
        struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
        struct wcn36xx_sta *sta_priv = NULL;
        if (vif->type == NL80211_IFTYPE_ADHOC ||
            vif->type == NL80211_IFTYPE_AP ||
            vif->type == NL80211_IFTYPE_MESH_POINT) {
                sta_params->type = 1;
                sta_params->sta_index = WCN36XX_HAL_STA_INVALID_IDX;
        } else {
                sta_params->type = 0;
                sta_params->sta_index = vif_priv->self_sta_index;
        }

        sta_params->listen_interval = WCN36XX_LISTEN_INTERVAL(wcn);

        /*
         * In STA mode ieee80211_sta contains bssid and ieee80211_vif
         * contains our mac address. In  AP mode we are bssid so vif
         * contains bssid and ieee80211_sta contains mac.
         */
        if (NL80211_IFTYPE_STATION == vif->type)
                memcpy(&sta_params->mac, vif->addr, ETH_ALEN);
        else
                memcpy(&sta_params->bssid, vif->addr, ETH_ALEN);

        sta_params->encrypt_type = vif_priv->encrypt_type;
        sta_params->short_preamble_supported = true;

        sta_params->rifs_mode = 0;
        sta_params->rmf = 0;
        sta_params->action = 0;
        sta_params->uapsd = 0;
        sta_params->mimo_ps = WCN36XX_HAL_HT_MIMO_PS_STATIC;
        sta_params->max_ampdu_duration = 0;
        sta_params->bssid_index = vif_priv->bss_index;
        sta_params->p2p = 0;

        if (sta) {
                sta_priv = wcn36xx_sta_to_priv(sta);
                if (NL80211_IFTYPE_STATION == vif->type)
                        memcpy(&sta_params->bssid, sta->addr, ETH_ALEN);
                else
                        memcpy(&sta_params->mac, sta->addr, ETH_ALEN);
                sta_params->wmm_enabled = sta->wme;
                sta_params->max_sp_len = sta->max_sp;
                sta_params->aid = sta_priv->aid;
                wcn36xx_smd_set_sta_ht_params(sta, sta_params);
                memcpy(&sta_params->supported_rates, &sta_priv->supported_rates,
                        sizeof(sta_priv->supported_rates));
        } else {
                wcn36xx_set_default_rates(&sta_params->supported_rates);
                wcn36xx_smd_set_sta_default_ht_params(sta_params);
        }
}

static int wcn36xx_smd_send_and_wait(struct wcn36xx *wcn, size_t len)
{
        int ret;
        unsigned long start;
        struct wcn36xx_hal_msg_header *hdr =
                (struct wcn36xx_hal_msg_header *)wcn->hal_buf;
        u16 req_type = hdr->msg_type;

        wcn36xx_dbg_dump(WCN36XX_DBG_SMD_DUMP, "HAL >>> ", wcn->hal_buf, len);

        init_completion(&wcn->hal_rsp_compl);
        start = jiffies;
        ret = rpmsg_send(wcn->smd_channel, wcn->hal_buf, len);
        if (ret) {
                wcn36xx_err("HAL TX failed for req %d\n", req_type);
                goto out;
        }
        if (wait_for_completion_timeout(&wcn->hal_rsp_compl,
                msecs_to_jiffies(HAL_MSG_TIMEOUT)) <= 0) {
                wcn36xx_err("Timeout! No SMD response to req %d in %dms\n",
                            req_type, HAL_MSG_TIMEOUT);
                ret = -ETIME;
                goto out;
        }
        wcn36xx_dbg(WCN36XX_DBG_SMD,
                    "SMD command (req %d, rsp %d) completed in %dms\n",
                    req_type, hdr->msg_type,
                    jiffies_to_msecs(jiffies - start));
out:
        return ret;
}

static void init_hal_msg(struct wcn36xx_hal_msg_header *hdr,
                         enum wcn36xx_hal_host_msg_type msg_type,
                         size_t msg_size)
{
        memset(hdr, 0, msg_size + sizeof(*hdr));
        hdr->msg_type = msg_type;
        hdr->msg_version = WCN36XX_HAL_MSG_VERSION0;
        hdr->len = msg_size + sizeof(*hdr);
}

#define INIT_HAL_MSG(msg_body, type) \
        do {                                                            \
                memset(&msg_body, 0, sizeof(msg_body));                 \
                msg_body.header.msg_type = type;                        \
                msg_body.header.msg_version = WCN36XX_HAL_MSG_VERSION0; \
                msg_body.header.len = sizeof(msg_body);                 \
        } while (0)                                                     \

#define INIT_HAL_PTT_MSG(p_msg_body, ppt_msg_len) \
        do { \
                memset(p_msg_body, 0, sizeof(*p_msg_body) + ppt_msg_len); \
                p_msg_body->header.msg_type = WCN36XX_HAL_PROCESS_PTT_REQ; \
                p_msg_body->header.msg_version = WCN36XX_HAL_MSG_VERSION0; \
                p_msg_body->header.len = sizeof(*p_msg_body) + ppt_msg_len; \
        } while (0)

#define PREPARE_HAL_BUF(send_buf, msg_body) \
        do {                                                    \
                memset(send_buf, 0, msg_body.header.len);       \
                memcpy(send_buf, &msg_body, sizeof(msg_body));  \
        } while (0)                                             \

#define PREPARE_HAL_PTT_MSG_BUF(send_buf, p_msg_body) \
        do {                                                    \
                memset(send_buf, 0, p_msg_body->header.len); \
                memcpy(send_buf, p_msg_body, p_msg_body->header.len); \
        } while (0)

static int wcn36xx_smd_rsp_status_check(void *buf, size_t len)
{
        struct wcn36xx_fw_msg_status_rsp *rsp;

        if (len < sizeof(struct wcn36xx_hal_msg_header) +
            sizeof(struct wcn36xx_fw_msg_status_rsp))
                return -EIO;

        rsp = (struct wcn36xx_fw_msg_status_rsp *)
                (buf + sizeof(struct wcn36xx_hal_msg_header));

        if (WCN36XX_FW_MSG_RESULT_SUCCESS != rsp->status)
                return rsp->status;

        return 0;
}

int wcn36xx_smd_load_nv(struct wcn36xx *wcn)
{
        struct nv_data *nv_d;
        struct wcn36xx_hal_nv_img_download_req_msg msg_body;
        int fw_bytes_left;
        int ret;
        u16 fm_offset = 0;

        if (!wcn->nv) {
                ret = request_firmware(&wcn->nv, WLAN_NV_FILE, wcn->dev);
                if (ret) {
                        wcn36xx_err("Failed to load nv file %s: %d\n",
                                      WLAN_NV_FILE, ret);
                        goto out;
                }
        }

        nv_d = (struct nv_data *)wcn->nv->data;
        INIT_HAL_MSG(msg_body, WCN36XX_HAL_DOWNLOAD_NV_REQ);

        msg_body.header.len += WCN36XX_NV_FRAGMENT_SIZE;

        msg_body.frag_number = 0;
        /* hal_buf must be protected with  mutex */
        mutex_lock(&wcn->hal_mutex);

        do {
                fw_bytes_left = wcn->nv->size - fm_offset - 4;
                if (fw_bytes_left > WCN36XX_NV_FRAGMENT_SIZE) {
                        msg_body.last_fragment = 0;
                        msg_body.nv_img_buffer_size = WCN36XX_NV_FRAGMENT_SIZE;
                } else {
                        msg_body.last_fragment = 1;
                        msg_body.nv_img_buffer_size = fw_bytes_left;

                        /* Do not forget update general message len */
                        msg_body.header.len = sizeof(msg_body) + fw_bytes_left;

                }

                /* Add load NV request message header */
                memcpy(wcn->hal_buf, &msg_body, sizeof(msg_body));

                /* Add NV body itself */
                memcpy(wcn->hal_buf + sizeof(msg_body),
                       &nv_d->table + fm_offset,
                       msg_body.nv_img_buffer_size);

                ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
                if (ret)
                        goto out_unlock;
                ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf,
                                                   wcn->hal_rsp_len);
                if (ret) {
                        wcn36xx_err("hal_load_nv response failed err=%d\n",
                                    ret);
                        goto out_unlock;
                }
                msg_body.frag_number++;
                fm_offset += WCN36XX_NV_FRAGMENT_SIZE;

        } while (msg_body.last_fragment != 1);

out_unlock:
        mutex_unlock(&wcn->hal_mutex);
out:    return ret;
}

static int wcn36xx_smd_start_rsp(struct wcn36xx *wcn, void *buf, size_t len)
{
        struct wcn36xx_hal_mac_start_rsp_msg *rsp;

        if (len < sizeof(*rsp))
                return -EIO;

        rsp = (struct wcn36xx_hal_mac_start_rsp_msg *)buf;

        if (WCN36XX_FW_MSG_RESULT_SUCCESS != rsp->start_rsp_params.status)
                return -EIO;

        memcpy(wcn->crm_version, rsp->start_rsp_params.crm_version,
               WCN36XX_HAL_VERSION_LENGTH);
        memcpy(wcn->wlan_version, rsp->start_rsp_params.wlan_version,
               WCN36XX_HAL_VERSION_LENGTH);

        /* null terminate the strings, just in case */
        wcn->crm_version[WCN36XX_HAL_VERSION_LENGTH] = '\0';
        wcn->wlan_version[WCN36XX_HAL_VERSION_LENGTH] = '\0';

        wcn->fw_revision = rsp->start_rsp_params.version.revision;
        wcn->fw_version = rsp->start_rsp_params.version.version;
        wcn->fw_minor = rsp->start_rsp_params.version.minor;
        wcn->fw_major = rsp->start_rsp_params.version.major;

        if (wcn->first_boot) {
                wcn->first_boot = false;
                wcn36xx_info("firmware WLAN version '%s' and CRM version '%s'\n",
                             wcn->wlan_version, wcn->crm_version);

                wcn36xx_info("firmware API %u.%u.%u.%u, %u stations, %u bssids\n",
                             wcn->fw_major, wcn->fw_minor,
                             wcn->fw_version, wcn->fw_revision,
                             rsp->start_rsp_params.stations,
                             rsp->start_rsp_params.bssids);
        }
        return 0;
}

int wcn36xx_smd_start(struct wcn36xx *wcn)
{
        struct wcn36xx_hal_mac_start_req_msg msg_body, *body;
        int ret;
        int i;
        size_t len;

        mutex_lock(&wcn->hal_mutex);
        INIT_HAL_MSG(msg_body, WCN36XX_HAL_START_REQ);

        msg_body.params.type = DRIVER_TYPE_PRODUCTION;
        msg_body.params.len = 0;

        PREPARE_HAL_BUF(wcn->hal_buf, msg_body);

        body = (struct wcn36xx_hal_mac_start_req_msg *)wcn->hal_buf;
        len = body->header.len;

        for (i = 0; i < ARRAY_SIZE(wcn36xx_cfg_vals); i++) {
                ret = put_cfg_tlv_u32(wcn, &len, wcn36xx_cfg_vals[i].cfg_id,
                                      wcn36xx_cfg_vals[i].value);
                if (ret)
                        goto out;
        }
        body->header.len = len;
        body->params.len = len - sizeof(*body);

        wcn36xx_dbg(WCN36XX_DBG_HAL, "hal start type %d\n",
                    msg_body.params.type);

        ret = wcn36xx_smd_send_and_wait(wcn, body->header.len);
        if (ret) {
                wcn36xx_err("Sending hal_start failed\n");
                goto out;
        }

        ret = wcn36xx_smd_start_rsp(wcn, wcn->hal_buf, wcn->hal_rsp_len);
        if (ret) {
                wcn36xx_err("hal_start response failed err=%d\n", ret);
                goto out;
        }

out:
        mutex_unlock(&wcn->hal_mutex);
        return ret;
}

int wcn36xx_smd_stop(struct wcn36xx *wcn)
{
        struct wcn36xx_hal_mac_stop_req_msg msg_body;
        int ret;

        mutex_lock(&wcn->hal_mutex);
        INIT_HAL_MSG(msg_body, WCN36XX_HAL_STOP_REQ);

        msg_body.stop_req_params.reason = HAL_STOP_TYPE_RF_KILL;

        PREPARE_HAL_BUF(wcn->hal_buf, msg_body);

        ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
        if (ret) {
                wcn36xx_err("Sending hal_stop failed\n");
                goto out;
        }
        ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
        if (ret) {
                wcn36xx_err("hal_stop response failed err=%d\n", ret);
                goto out;
        }
out:
        mutex_unlock(&wcn->hal_mutex);
        return ret;
}

int wcn36xx_smd_init_scan(struct wcn36xx *wcn, enum wcn36xx_hal_sys_mode mode)
{
        struct wcn36xx_hal_init_scan_req_msg msg_body;
        int ret;

        mutex_lock(&wcn->hal_mutex);
        INIT_HAL_MSG(msg_body, WCN36XX_HAL_INIT_SCAN_REQ);

        msg_body.mode = mode;

        PREPARE_HAL_BUF(wcn->hal_buf, msg_body);

        wcn36xx_dbg(WCN36XX_DBG_HAL, "hal init scan mode %d\n", msg_body.mode);

        ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
        if (ret) {
                wcn36xx_err("Sending hal_init_scan failed\n");
                goto out;
        }
        ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
        if (ret) {
                wcn36xx_err("hal_init_scan response failed err=%d\n", ret);
                goto out;
        }
out:
        mutex_unlock(&wcn->hal_mutex);
        return ret;
}

int wcn36xx_smd_start_scan(struct wcn36xx *wcn, u8 scan_channel)
{
        struct wcn36xx_hal_start_scan_req_msg msg_body;
        int ret;

        mutex_lock(&wcn->hal_mutex);
        INIT_HAL_MSG(msg_body, WCN36XX_HAL_START_SCAN_REQ);

        msg_body.scan_channel = scan_channel;

        PREPARE_HAL_BUF(wcn->hal_buf, msg_body);

        wcn36xx_dbg(WCN36XX_DBG_HAL, "hal start scan channel %d\n",
                    msg_body.scan_channel);

        ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
        if (ret) {
                wcn36xx_err("Sending hal_start_scan failed\n");
                goto out;
        }
        ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
        if (ret) {
                wcn36xx_err("hal_start_scan response failed err=%d\n", ret);
                goto out;
        }
out:
        mutex_unlock(&wcn->hal_mutex);
        return ret;
}

int wcn36xx_smd_end_scan(struct wcn36xx *wcn, u8 scan_channel)
{
        struct wcn36xx_hal_end_scan_req_msg msg_body;
        int ret;

        mutex_lock(&wcn->hal_mutex);
        INIT_HAL_MSG(msg_body, WCN36XX_HAL_END_SCAN_REQ);

        msg_body.scan_channel = scan_channel;

        PREPARE_HAL_BUF(wcn->hal_buf, msg_body);

        wcn36xx_dbg(WCN36XX_DBG_HAL, "hal end scan channel %d\n",
                    msg_body.scan_channel);

        ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
        if (ret) {
                wcn36xx_err("Sending hal_end_scan failed\n");
                goto out;
        }
        ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
        if (ret) {
                wcn36xx_err("hal_end_scan response failed err=%d\n", ret);
                goto out;
        }
out:
        mutex_unlock(&wcn->hal_mutex);
        return ret;
}

int wcn36xx_smd_finish_scan(struct wcn36xx *wcn,
                            enum wcn36xx_hal_sys_mode mode)
{
        struct wcn36xx_hal_finish_scan_req_msg msg_body;
        int ret;

        mutex_lock(&wcn->hal_mutex);
        INIT_HAL_MSG(msg_body, WCN36XX_HAL_FINISH_SCAN_REQ);

        msg_body.mode = mode;

        PREPARE_HAL_BUF(wcn->hal_buf, msg_body);

        wcn36xx_dbg(WCN36XX_DBG_HAL, "hal finish scan mode %d\n",
                    msg_body.mode);

        ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
        if (ret) {
                wcn36xx_err("Sending hal_finish_scan failed\n");
                goto out;
        }
        ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
        if (ret) {
                wcn36xx_err("hal_finish_scan response failed err=%d\n", ret);
                goto out;
        }
out:
        mutex_unlock(&wcn->hal_mutex);
        return ret;
}

int wcn36xx_smd_start_hw_scan(struct wcn36xx *wcn, struct ieee80211_vif *vif,
                              struct cfg80211_scan_request *req)
{
        struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
        struct wcn36xx_hal_start_scan_offload_req_msg msg_body;
        int ret, i;

        if (req->ie_len > WCN36XX_MAX_SCAN_IE_LEN)
                return -EINVAL;

        mutex_lock(&wcn->hal_mutex);
        INIT_HAL_MSG(msg_body, WCN36XX_HAL_START_SCAN_OFFLOAD_REQ);

        msg_body.scan_type = WCN36XX_HAL_SCAN_TYPE_ACTIVE;
        msg_body.min_ch_time = 30;
        msg_body.max_ch_time = 100;
        msg_body.scan_hidden = 1;
        memcpy(msg_body.mac, vif->addr, ETH_ALEN);
        msg_body.bss_type = vif_priv->bss_type;
        msg_body.p2p_search = vif->p2p;

        msg_body.num_ssid = min_t(u8, req->n_ssids, ARRAY_SIZE(msg_body.ssids));
        for (i = 0; i < msg_body.num_ssid; i++) {
                msg_body.ssids[i].length = min_t(u8, req->ssids[i].ssid_len,
                                                sizeof(msg_body.ssids[i].ssid));
                memcpy(msg_body.ssids[i].ssid, req->ssids[i].ssid,
                       msg_body.ssids[i].length);
        }

        msg_body.num_channel = min_t(u8, req->n_channels,
                                     sizeof(msg_body.channels));
        for (i = 0; i < msg_body.num_channel; i++)
                msg_body.channels[i] = req->channels[i]->hw_value;

        msg_body.header.len -= WCN36XX_MAX_SCAN_IE_LEN;

        if (req->ie_len > 0) {
                msg_body.ie_len = req->ie_len;
                msg_body.header.len += req->ie_len;
                memcpy(msg_body.ie, req->ie, req->ie_len);
        }

        PREPARE_HAL_BUF(wcn->hal_buf, msg_body);

        wcn36xx_dbg(WCN36XX_DBG_HAL,
                    "hal start hw-scan (channels: %u; ssids: %u; p2p: %s)\n",
                    msg_body.num_channel, msg_body.num_ssid,
                    msg_body.p2p_search ? "yes" : "no");

        ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
        if (ret) {
                wcn36xx_err("Sending hal_start_scan_offload failed\n");
                goto out;
        }
        ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
        if (ret) {
                wcn36xx_err("hal_start_scan_offload response failed err=%d\n",
                            ret);
                goto out;
        }
out:
        mutex_unlock(&wcn->hal_mutex);
        return ret;
}

int wcn36xx_smd_stop_hw_scan(struct wcn36xx *wcn)
{
        struct wcn36xx_hal_stop_scan_offload_req_msg msg_body;
        int ret;

        mutex_lock(&wcn->hal_mutex);
        INIT_HAL_MSG(msg_body, WCN36XX_HAL_STOP_SCAN_OFFLOAD_REQ);
        PREPARE_HAL_BUF(wcn->hal_buf, msg_body);

        wcn36xx_dbg(WCN36XX_DBG_HAL, "hal stop hw-scan\n");

        ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
        if (ret) {
                wcn36xx_err("Sending hal_stop_scan_offload failed\n");
                goto out;
        }
        ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
        if (ret) {
                wcn36xx_err("hal_stop_scan_offload response failed err=%d\n",
                            ret);
                goto out;
        }
out:
        mutex_unlock(&wcn->hal_mutex);
        return ret;
}

static int wcn36xx_smd_switch_channel_rsp(void *buf, size_t len)
{
        struct wcn36xx_hal_switch_channel_rsp_msg *rsp;
        int ret;

        ret = wcn36xx_smd_rsp_status_check(buf, len);
        if (ret)
                return ret;
        rsp = (struct wcn36xx_hal_switch_channel_rsp_msg *)buf;
        wcn36xx_dbg(WCN36XX_DBG_HAL, "channel switched to: %d, status: %d\n",
                    rsp->channel_number, rsp->status);
        return ret;
}

int wcn36xx_smd_switch_channel(struct wcn36xx *wcn,
                               struct ieee80211_vif *vif, int ch)
{
        struct wcn36xx_hal_switch_channel_req_msg msg_body;
        int ret;

        mutex_lock(&wcn->hal_mutex);
        INIT_HAL_MSG(msg_body, WCN36XX_HAL_CH_SWITCH_REQ);

        msg_body.channel_number = (u8)ch;
        msg_body.tx_mgmt_power = 0xbf;
        msg_body.max_tx_power = 0xbf;
        memcpy(msg_body.self_sta_mac_addr, vif->addr, ETH_ALEN);

        PREPARE_HAL_BUF(wcn->hal_buf, msg_body);

        ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
        if (ret) {
                wcn36xx_err("Sending hal_switch_channel failed\n");
                goto out;
        }
        ret = wcn36xx_smd_switch_channel_rsp(wcn->hal_buf, wcn->hal_rsp_len);
        if (ret) {
                wcn36xx_err("hal_switch_channel response failed err=%d\n", ret);
                goto out;
        }
out:
        mutex_unlock(&wcn->hal_mutex);
        return ret;
}

static int wcn36xx_smd_process_ptt_msg_rsp(void *buf, size_t len,
                                           void **p_ptt_rsp_msg)
{
        struct wcn36xx_hal_process_ptt_msg_rsp_msg *rsp;
        int ret;

        ret = wcn36xx_smd_rsp_status_check(buf, len);
        if (ret)
                return ret;

        rsp = (struct wcn36xx_hal_process_ptt_msg_rsp_msg *)buf;

        wcn36xx_dbg(WCN36XX_DBG_HAL, "process ptt msg responded with length %d\n",
                    rsp->header.len);
        wcn36xx_dbg_dump(WCN36XX_DBG_HAL_DUMP, "HAL_PTT_MSG_RSP:", rsp->ptt_msg,
                         rsp->header.len - sizeof(rsp->ptt_msg_resp_status));

        if (rsp->header.len > 0) {
                *p_ptt_rsp_msg = kmemdup(rsp->ptt_msg, rsp->header.len,
                                         GFP_ATOMIC);
                if (!*p_ptt_rsp_msg)
                        return -ENOMEM;
        }
        return ret;
}

int wcn36xx_smd_process_ptt_msg(struct wcn36xx *wcn,
                                struct ieee80211_vif *vif, void *ptt_msg, size_t len,
                void **ptt_rsp_msg)
{
        struct wcn36xx_hal_process_ptt_msg_req_msg *p_msg_body;
        int ret;

        mutex_lock(&wcn->hal_mutex);
        p_msg_body = kmalloc(
                sizeof(struct wcn36xx_hal_process_ptt_msg_req_msg) + len,
                GFP_ATOMIC);
        if (!p_msg_body) {
                ret = -ENOMEM;
                goto out_nomem;
        }
        INIT_HAL_PTT_MSG(p_msg_body, len);

        memcpy(&p_msg_body->ptt_msg, ptt_msg, len);

        PREPARE_HAL_PTT_MSG_BUF(wcn->hal_buf, p_msg_body);

        ret = wcn36xx_smd_send_and_wait(wcn, p_msg_body->header.len);
        if (ret) {
                wcn36xx_err("Sending hal_process_ptt_msg failed\n");
                goto out;
        }
        ret = wcn36xx_smd_process_ptt_msg_rsp(wcn->hal_buf, wcn->hal_rsp_len,
                                              ptt_rsp_msg);
        if (ret) {
                wcn36xx_err("process_ptt_msg response failed err=%d\n", ret);
                goto out;
        }
out:
        kfree(p_msg_body);
out_nomem:
        mutex_unlock(&wcn->hal_mutex);
        return ret;
}

static int wcn36xx_smd_update_scan_params_rsp(void *buf, size_t len)
{
        struct wcn36xx_hal_update_scan_params_resp *rsp;

        rsp = (struct wcn36xx_hal_update_scan_params_resp *)buf;

        /* Remove the PNO version bit */
        rsp->status &= (~(WCN36XX_FW_MSG_PNO_VERSION_MASK));

        if (WCN36XX_FW_MSG_RESULT_SUCCESS != rsp->status) {
                wcn36xx_warn("error response from update scan\n");
                return rsp->status;
        }

        return 0;
}

int wcn36xx_smd_update_scan_params(struct wcn36xx *wcn,
                                   u8 *channels, size_t channel_count)
{
        struct wcn36xx_hal_update_scan_params_req_ex msg_body;
        int ret;

        mutex_lock(&wcn->hal_mutex);
        INIT_HAL_MSG(msg_body, WCN36XX_HAL_UPDATE_SCAN_PARAM_REQ);

        msg_body.dot11d_enabled = false;
        msg_body.dot11d_resolved = true;

        msg_body.channel_count = channel_count;
        memcpy(msg_body.channels, channels, channel_count);
        msg_body.active_min_ch_time = 60;
        msg_body.active_max_ch_time = 120;
        msg_body.passive_min_ch_time = 60;
        msg_body.passive_max_ch_time = 110;
        msg_body.state = PHY_SINGLE_CHANNEL_CENTERED;

        PREPARE_HAL_BUF(wcn->hal_buf, msg_body);

        wcn36xx_dbg(WCN36XX_DBG_HAL,
                    "hal update scan params channel_count %d\n",
                    msg_body.channel_count);

        ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
        if (ret) {
                wcn36xx_err("Sending hal_update_scan_params failed\n");
                goto out;
        }
        ret = wcn36xx_smd_update_scan_params_rsp(wcn->hal_buf,
                                                 wcn->hal_rsp_len);
        if (ret) {
                wcn36xx_err("hal_update_scan_params response failed err=%d\n",
                            ret);
                goto out;
        }
out:
        mutex_unlock(&wcn->hal_mutex);
        return ret;
}

static int wcn36xx_smd_add_sta_self_rsp(struct wcn36xx *wcn,
                                        struct ieee80211_vif *vif,
                                        void *buf,
                                        size_t len)
{
        struct wcn36xx_hal_add_sta_self_rsp_msg *rsp;
        struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);

        if (len < sizeof(*rsp))
                return -EINVAL;

        rsp = (struct wcn36xx_hal_add_sta_self_rsp_msg *)buf;

        if (rsp->status != WCN36XX_FW_MSG_RESULT_SUCCESS) {
                wcn36xx_warn("hal add sta self failure: %d\n",
                             rsp->status);
                return rsp->status;
        }

        wcn36xx_dbg(WCN36XX_DBG_HAL,
                    "hal add sta self status %d self_sta_index %d dpu_index %d\n",
                    rsp->status, rsp->self_sta_index, rsp->dpu_index);

        vif_priv->self_sta_index = rsp->self_sta_index;
        vif_priv->self_dpu_desc_index = rsp->dpu_index;

        return 0;
}

int wcn36xx_smd_add_sta_self(struct wcn36xx *wcn, struct ieee80211_vif *vif)
{
        struct wcn36xx_hal_add_sta_self_req msg_body;
        int ret;

        mutex_lock(&wcn->hal_mutex);
        INIT_HAL_MSG(msg_body, WCN36XX_HAL_ADD_STA_SELF_REQ);

        memcpy(&msg_body.self_addr, vif->addr, ETH_ALEN);

        PREPARE_HAL_BUF(wcn->hal_buf, msg_body);

        wcn36xx_dbg(WCN36XX_DBG_HAL,
                    "hal add sta self self_addr %pM status %d\n",
                    msg_body.self_addr, msg_body.status);

        ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
        if (ret) {
                wcn36xx_err("Sending hal_add_sta_self failed\n");
                goto out;
        }
        ret = wcn36xx_smd_add_sta_self_rsp(wcn,
                                           vif,
                                           wcn->hal_buf,
                                           wcn->hal_rsp_len);
        if (ret) {
                wcn36xx_err("hal_add_sta_self response failed err=%d\n", ret);
                goto out;
        }
out:
        mutex_unlock(&wcn->hal_mutex);
        return ret;
}

int wcn36xx_smd_delete_sta_self(struct wcn36xx *wcn, u8 *addr)
{
        struct wcn36xx_hal_del_sta_self_req_msg msg_body;
        int ret;

        mutex_lock(&wcn->hal_mutex);
        INIT_HAL_MSG(msg_body, WCN36XX_HAL_DEL_STA_SELF_REQ);

        memcpy(&msg_body.self_addr, addr, ETH_ALEN);

        PREPARE_HAL_BUF(wcn->hal_buf, msg_body);

        ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
        if (ret) {
                wcn36xx_err("Sending hal_delete_sta_self failed\n");
                goto out;
        }
        ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
        if (ret) {
                wcn36xx_err("hal_delete_sta_self response failed err=%d\n",
                            ret);
                goto out;
        }
out:
        mutex_unlock(&wcn->hal_mutex);
        return ret;
}

int wcn36xx_smd_delete_sta(struct wcn36xx *wcn, u8 sta_index)
{
        struct wcn36xx_hal_delete_sta_req_msg msg_body;
        int ret;

        mutex_lock(&wcn->hal_mutex);
        INIT_HAL_MSG(msg_body, WCN36XX_HAL_DELETE_STA_REQ);

        msg_body.sta_index = sta_index;

        PREPARE_HAL_BUF(wcn->hal_buf, msg_body);

        wcn36xx_dbg(WCN36XX_DBG_HAL,
                    "hal delete sta sta_index %d\n",
                    msg_body.sta_index);

        ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
        if (ret) {
                wcn36xx_err("Sending hal_delete_sta failed\n");
                goto out;
        }
        ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
        if (ret) {
                wcn36xx_err("hal_delete_sta response failed err=%d\n", ret);
                goto out;
        }
out:
        mutex_unlock(&wcn->hal_mutex);
        return ret;
}

static int wcn36xx_smd_join_rsp(void *buf, size_t len)
{
        struct wcn36xx_hal_join_rsp_msg *rsp;

        if (wcn36xx_smd_rsp_status_check(buf, len))
                return -EIO;

        rsp = (struct wcn36xx_hal_join_rsp_msg *)buf;

        wcn36xx_dbg(WCN36XX_DBG_HAL,
                    "hal rsp join status %d tx_mgmt_power %d\n",
                    rsp->status, rsp->tx_mgmt_power);

        return 0;
}

int wcn36xx_smd_join(struct wcn36xx *wcn, const u8 *bssid, u8 *vif, u8 ch)
{
        struct wcn36xx_hal_join_req_msg msg_body;
        int ret;

        mutex_lock(&wcn->hal_mutex);
        INIT_HAL_MSG(msg_body, WCN36XX_HAL_JOIN_REQ);

        memcpy(&msg_body.bssid, bssid, ETH_ALEN);
        memcpy(&msg_body.self_sta_mac_addr, vif, ETH_ALEN);
        msg_body.channel = ch;

        if (conf_is_ht40_minus(&wcn->hw->conf))
                msg_body.secondary_channel_offset =
                        PHY_DOUBLE_CHANNEL_HIGH_PRIMARY;
        else if (conf_is_ht40_plus(&wcn->hw->conf))
                msg_body.secondary_channel_offset =
                        PHY_DOUBLE_CHANNEL_LOW_PRIMARY;
        else
                msg_body.secondary_channel_offset =
                        PHY_SINGLE_CHANNEL_CENTERED;

        msg_body.link_state = WCN36XX_HAL_LINK_PREASSOC_STATE;

        msg_body.max_tx_power = 0xbf;
        PREPARE_HAL_BUF(wcn->hal_buf, msg_body);

        wcn36xx_dbg(WCN36XX_DBG_HAL,
                    "hal join req bssid %pM self_sta_mac_addr %pM channel %d link_state %d\n",
                    msg_body.bssid, msg_body.self_sta_mac_addr,
                    msg_body.channel, msg_body.link_state);

        ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
        if (ret) {
                wcn36xx_err("Sending hal_join failed\n");
                goto out;
        }
        ret = wcn36xx_smd_join_rsp(wcn->hal_buf, wcn->hal_rsp_len);
        if (ret) {
                wcn36xx_err("hal_join response failed err=%d\n", ret);
                goto out;
        }
out:
        mutex_unlock(&wcn->hal_mutex);
        return ret;
}

int wcn36xx_smd_set_link_st(struct wcn36xx *wcn, const u8 *bssid,
                            const u8 *sta_mac,
                            enum wcn36xx_hal_link_state state)
{
        struct wcn36xx_hal_set_link_state_req_msg msg_body;
        int ret;

        mutex_lock(&wcn->hal_mutex);
        INIT_HAL_MSG(msg_body, WCN36XX_HAL_SET_LINK_ST_REQ);

        memcpy(&msg_body.bssid, bssid, ETH_ALEN);
        memcpy(&msg_body.self_mac_addr, sta_mac, ETH_ALEN);
        msg_body.state = state;

        PREPARE_HAL_BUF(wcn->hal_buf, msg_body);

        wcn36xx_dbg(WCN36XX_DBG_HAL,
                    "hal set link state bssid %pM self_mac_addr %pM state %d\n",
                    msg_body.bssid, msg_body.self_mac_addr, msg_body.state);

        ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
        if (ret) {
                wcn36xx_err("Sending hal_set_link_st failed\n");
                goto out;
        }
        ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
        if (ret) {
                wcn36xx_err("hal_set_link_st response failed err=%d\n", ret);
                goto out;
        }
out:
        mutex_unlock(&wcn->hal_mutex);
        return ret;
}

static void wcn36xx_smd_convert_sta_to_v1(struct wcn36xx *wcn,
                        const struct wcn36xx_hal_config_sta_params *orig,
                        struct wcn36xx_hal_config_sta_params_v1 *v1)
{
        /* convert orig to v1 format */
        memcpy(&v1->bssid, orig->bssid, ETH_ALEN);
        memcpy(&v1->mac, orig->mac, ETH_ALEN);
        v1->aid = orig->aid;
        v1->type = orig->type;
        v1->short_preamble_supported = orig->short_preamble_supported;
        v1->listen_interval = orig->listen_interval;
        v1->wmm_enabled = orig->wmm_enabled;
        v1->ht_capable = orig->ht_capable;
        v1->tx_channel_width_set = orig->tx_channel_width_set;
        v1->rifs_mode = orig->rifs_mode;
        v1->lsig_txop_protection = orig->lsig_txop_protection;
        v1->max_ampdu_size = orig->max_ampdu_size;
        v1->max_ampdu_density = orig->max_ampdu_density;
        v1->sgi_40mhz = orig->sgi_40mhz;
        v1->sgi_20Mhz = orig->sgi_20Mhz;
        v1->rmf = orig->rmf;
        v1->encrypt_type = orig->encrypt_type;
        v1->action = orig->action;
        v1->uapsd = orig->uapsd;
        v1->max_sp_len = orig->max_sp_len;
        v1->green_field_capable = orig->green_field_capable;
        v1->mimo_ps = orig->mimo_ps;
        v1->delayed_ba_support = orig->delayed_ba_support;
        v1->max_ampdu_duration = orig->max_ampdu_duration;
        v1->dsss_cck_mode_40mhz = orig->dsss_cck_mode_40mhz;
        memcpy(&v1->supported_rates, &orig->supported_rates,
               sizeof(orig->supported_rates));
        v1->sta_index = orig->sta_index;
        v1->bssid_index = orig->bssid_index;
        v1->p2p = orig->p2p;
}

static int wcn36xx_smd_config_sta_rsp(struct wcn36xx *wcn,
                                      struct ieee80211_sta *sta,
                                      void *buf,
                                      size_t len)
{
        struct wcn36xx_hal_config_sta_rsp_msg *rsp;
        struct config_sta_rsp_params *params;
        struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta);

        if (len < sizeof(*rsp))
                return -EINVAL;

        rsp = (struct wcn36xx_hal_config_sta_rsp_msg *)buf;
        params = &rsp->params;

        if (params->status != WCN36XX_FW_MSG_RESULT_SUCCESS) {
                wcn36xx_warn("hal config sta response failure: %d\n",
                             params->status);
                return -EIO;
        }

        sta_priv->sta_index = params->sta_index;
        sta_priv->dpu_desc_index = params->dpu_index;
        sta_priv->ucast_dpu_sign = params->uc_ucast_sig;

        wcn36xx_dbg(WCN36XX_DBG_HAL,
                    "hal config sta rsp status %d sta_index %d bssid_index %d uc_ucast_sig %d p2p %d\n",
                    params->status, params->sta_index, params->bssid_index,
                    params->uc_ucast_sig, params->p2p);

        return 0;
}

static int wcn36xx_smd_config_sta_v1(struct wcn36xx *wcn,
                     const struct wcn36xx_hal_config_sta_req_msg *orig)
{
        struct wcn36xx_hal_config_sta_req_msg_v1 msg_body;
        struct wcn36xx_hal_config_sta_params_v1 *sta = &msg_body.sta_params;

        INIT_HAL_MSG(msg_body, WCN36XX_HAL_CONFIG_STA_REQ);

        wcn36xx_smd_convert_sta_to_v1(wcn, &orig->sta_params,
                                      &msg_body.sta_params);

        PREPARE_HAL_BUF(wcn->hal_buf, msg_body);

        wcn36xx_dbg(WCN36XX_DBG_HAL,
                    "hal config sta v1 action %d sta_index %d bssid_index %d bssid %pM type %d mac %pM aid %d\n",
                    sta->action, sta->sta_index, sta->bssid_index,
                    sta->bssid, sta->type, sta->mac, sta->aid);

        return wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
}

int wcn36xx_smd_config_sta(struct wcn36xx *wcn, struct ieee80211_vif *vif,
                           struct ieee80211_sta *sta)
{
        struct wcn36xx_hal_config_sta_req_msg msg;
        struct wcn36xx_hal_config_sta_params *sta_params;
        int ret;

        mutex_lock(&wcn->hal_mutex);
        INIT_HAL_MSG(msg, WCN36XX_HAL_CONFIG_STA_REQ);

        sta_params = &msg.sta_params;

        wcn36xx_smd_set_sta_params(wcn, vif, sta, sta_params);

        if (!wcn36xx_is_fw_version(wcn, 1, 2, 2, 24)) {
                ret = wcn36xx_smd_config_sta_v1(wcn, &msg);
        } else {
                PREPARE_HAL_BUF(wcn->hal_buf, msg);

                wcn36xx_dbg(WCN36XX_DBG_HAL,
                            "hal config sta action %d sta_index %d bssid_index %d bssid %pM type %d mac %pM aid %d\n",
                            sta_params->action, sta_params->sta_index,
                            sta_params->bssid_index, sta_params->bssid,
                            sta_params->type, sta_params->mac, sta_params->aid);

                ret = wcn36xx_smd_send_and_wait(wcn, msg.header.len);
        }
        if (ret) {
                wcn36xx_err("Sending hal_config_sta failed\n");
                goto out;
        }
        ret = wcn36xx_smd_config_sta_rsp(wcn,
                                         sta,
                                         wcn->hal_buf,
                                         wcn->hal_rsp_len);
        if (ret) {
                wcn36xx_err("hal_config_sta response failed err=%d\n", ret);
                goto out;
        }
out:
        mutex_unlock(&wcn->hal_mutex);
        return ret;
}

static int wcn36xx_smd_config_bss_v1(struct wcn36xx *wcn,
                        const struct wcn36xx_hal_config_bss_req_msg *orig)
{
        struct wcn36xx_hal_config_bss_req_msg_v1 msg_body;
        struct wcn36xx_hal_config_bss_params_v1 *bss = &msg_body.bss_params;
        struct wcn36xx_hal_config_sta_params_v1 *sta = &bss->sta;

        INIT_HAL_MSG(msg_body, WCN36XX_HAL_CONFIG_BSS_REQ);

        /* convert orig to v1 */
        memcpy(&msg_body.bss_params.bssid,
               &orig->bss_params.bssid, ETH_ALEN);
        memcpy(&msg_body.bss_params.self_mac_addr,
               &orig->bss_params.self_mac_addr, ETH_ALEN);

        msg_body.bss_params.bss_type = orig->bss_params.bss_type;
        msg_body.bss_params.oper_mode = orig->bss_params.oper_mode;
        msg_body.bss_params.nw_type = orig->bss_params.nw_type;

        msg_body.bss_params.short_slot_time_supported =
                orig->bss_params.short_slot_time_supported;
        msg_body.bss_params.lla_coexist = orig->bss_params.lla_coexist;
        msg_body.bss_params.llb_coexist = orig->bss_params.llb_coexist;
        msg_body.bss_params.llg_coexist = orig->bss_params.llg_coexist;
        msg_body.bss_params.ht20_coexist = orig->bss_params.ht20_coexist;
        msg_body.bss_params.lln_non_gf_coexist =
                orig->bss_params.lln_non_gf_coexist;

        msg_body.bss_params.lsig_tx_op_protection_full_support =
                orig->bss_params.lsig_tx_op_protection_full_support;
        msg_body.bss_params.rifs_mode = orig->bss_params.rifs_mode;
        msg_body.bss_params.beacon_interval = orig->bss_params.beacon_interval;
        msg_body.bss_params.dtim_period = orig->bss_params.dtim_period;
        msg_body.bss_params.tx_channel_width_set =
                orig->bss_params.tx_channel_width_set;
        msg_body.bss_params.oper_channel = orig->bss_params.oper_channel;
        msg_body.bss_params.ext_channel = orig->bss_params.ext_channel;

        msg_body.bss_params.reserved = orig->bss_params.reserved;

        memcpy(&msg_body.bss_params.ssid,
               &orig->bss_params.ssid,
               sizeof(orig->bss_params.ssid));

        msg_body.bss_params.action = orig->bss_params.action;
        msg_body.bss_params.rateset = orig->bss_params.rateset;
        msg_body.bss_params.ht = orig->bss_params.ht;
        msg_body.bss_params.obss_prot_enabled =
                orig->bss_params.obss_prot_enabled;
        msg_body.bss_params.rmf = orig->bss_params.rmf;
        msg_body.bss_params.ht_oper_mode = orig->bss_params.ht_oper_mode;
        msg_body.bss_params.dual_cts_protection =
                orig->bss_params.dual_cts_protection;

        msg_body.bss_params.max_probe_resp_retry_limit =
                orig->bss_params.max_probe_resp_retry_limit;
        msg_body.bss_params.hidden_ssid = orig->bss_params.hidden_ssid;
        msg_body.bss_params.proxy_probe_resp =
                orig->bss_params.proxy_probe_resp;
        msg_body.bss_params.edca_params_valid =
                orig->bss_params.edca_params_valid;

        memcpy(&msg_body.bss_params.acbe,
               &orig->bss_params.acbe,
               sizeof(orig->bss_params.acbe));
        memcpy(&msg_body.bss_params.acbk,
               &orig->bss_params.acbk,
               sizeof(orig->bss_params.acbk));
        memcpy(&msg_body.bss_params.acvi,
               &orig->bss_params.acvi,
               sizeof(orig->bss_params.acvi));
        memcpy(&msg_body.bss_params.acvo,
               &orig->bss_params.acvo,
               sizeof(orig->bss_params.acvo));

        msg_body.bss_params.ext_set_sta_key_param_valid =
                orig->bss_params.ext_set_sta_key_param_valid;

        memcpy(&msg_body.bss_params.ext_set_sta_key_param,
               &orig->bss_params.ext_set_sta_key_param,
               sizeof(orig->bss_params.acvo));

        msg_body.bss_params.wcn36xx_hal_persona =
                orig->bss_params.wcn36xx_hal_persona;
        msg_body.bss_params.spectrum_mgt_enable =
                orig->bss_params.spectrum_mgt_enable;
        msg_body.bss_params.tx_mgmt_power = orig->bss_params.tx_mgmt_power;
        msg_body.bss_params.max_tx_power = orig->bss_params.max_tx_power;

        wcn36xx_smd_convert_sta_to_v1(wcn, &orig->bss_params.sta,
                                      &msg_body.bss_params.sta);

        PREPARE_HAL_BUF(wcn->hal_buf, msg_body);

        wcn36xx_dbg(WCN36XX_DBG_HAL,
                    "hal config bss v1 bssid %pM self_mac_addr %pM bss_type %d oper_mode %d nw_type %d\n",
                    bss->bssid, bss->self_mac_addr, bss->bss_type,
                    bss->oper_mode, bss->nw_type);

        wcn36xx_dbg(WCN36XX_DBG_HAL,
                    "- sta bssid %pM action %d sta_index %d bssid_index %d aid %d type %d mac %pM\n",
                    sta->bssid, sta->action, sta->sta_index,
                    sta->bssid_index, sta->aid, sta->type, sta->mac);

        return wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
}


static int wcn36xx_smd_config_bss_rsp(struct wcn36xx *wcn,
                                      struct ieee80211_vif *vif,
                                      struct ieee80211_sta *sta,
                                      void *buf,
                                      size_t len)
{
        struct wcn36xx_hal_config_bss_rsp_msg *rsp;
        struct wcn36xx_hal_config_bss_rsp_params *params;
        struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);

        if (len < sizeof(*rsp))
                return -EINVAL;

        rsp = (struct wcn36xx_hal_config_bss_rsp_msg *)buf;
        params = &rsp->bss_rsp_params;

        if (params->status != WCN36XX_FW_MSG_RESULT_SUCCESS) {
                wcn36xx_warn("hal config bss response failure: %d\n",
                             params->status);
                return -EIO;
        }

        wcn36xx_dbg(WCN36XX_DBG_HAL,
                    "hal config bss rsp status %d bss_idx %d dpu_desc_index %d"
                    " sta_idx %d self_idx %d bcast_idx %d mac %pM"
                    " power %d ucast_dpu_signature %d\n",
                    params->status, params->bss_index, params->dpu_desc_index,
                    params->bss_sta_index, params->bss_self_sta_index,
                    params->bss_bcast_sta_idx, params->mac,
                    params->tx_mgmt_power, params->ucast_dpu_signature);

        vif_priv->bss_index = params->bss_index;

        if (sta) {
                struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta);
                sta_priv->bss_sta_index = params->bss_sta_index;
                sta_priv->bss_dpu_desc_index = params->dpu_desc_index;
        }

        vif_priv->self_ucast_dpu_sign = params->ucast_dpu_signature;

        return 0;
}

int wcn36xx_smd_config_bss(struct wcn36xx *wcn, struct ieee80211_vif *vif,
                           struct ieee80211_sta *sta, const u8 *bssid,
                           bool update)
{
        struct wcn36xx_hal_config_bss_req_msg msg;
        struct wcn36xx_hal_config_bss_params *bss;
        struct wcn36xx_hal_config_sta_params *sta_params;
        struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
        int ret;

        mutex_lock(&wcn->hal_mutex);
        INIT_HAL_MSG(msg, WCN36XX_HAL_CONFIG_BSS_REQ);

        bss = &msg.bss_params;
        sta_params = &bss->sta;

        WARN_ON(is_zero_ether_addr(bssid));

        memcpy(&bss->bssid, bssid, ETH_ALEN);

        memcpy(bss->self_mac_addr, vif->addr, ETH_ALEN);

        if (vif->type == NL80211_IFTYPE_STATION) {
                bss->bss_type = WCN36XX_HAL_INFRASTRUCTURE_MODE;

                /* STA */
                bss->oper_mode = 1;
                bss->wcn36xx_hal_persona = WCN36XX_HAL_STA_MODE;
        } else if (vif->type == NL80211_IFTYPE_AP ||
                   vif->type == NL80211_IFTYPE_MESH_POINT) {
                bss->bss_type = WCN36XX_HAL_INFRA_AP_MODE;

                /* AP */
                bss->oper_mode = 0;
                bss->wcn36xx_hal_persona = WCN36XX_HAL_STA_SAP_MODE;
        } else if (vif->type == NL80211_IFTYPE_ADHOC) {
                bss->bss_type = WCN36XX_HAL_IBSS_MODE;

                /* STA */
                bss->oper_mode = 1;
        } else {
                wcn36xx_warn("Unknown type for bss config: %d\n", vif->type);
        }

        if (vif->type == NL80211_IFTYPE_STATION)
                wcn36xx_smd_set_bss_nw_type(wcn, sta, bss);
        else
                bss->nw_type = WCN36XX_HAL_11N_NW_TYPE;

        bss->short_slot_time_supported = vif->bss_conf.use_short_slot;
        bss->lla_coexist = 0;
        bss->llb_coexist = 0;
        bss->llg_coexist = 0;
        bss->rifs_mode = 0;
        bss->beacon_interval = vif->bss_conf.beacon_int;
        bss->dtim_period = vif_priv->dtim_period;

        wcn36xx_smd_set_bss_ht_params(vif, sta, bss);

        bss->oper_channel = WCN36XX_HW_CHANNEL(wcn);

        if (conf_is_ht40_minus(&wcn->hw->conf))
                bss->ext_channel = IEEE80211_HT_PARAM_CHA_SEC_BELOW;
        else if (conf_is_ht40_plus(&wcn->hw->conf))
                bss->ext_channel = IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
        else
                bss->ext_channel = IEEE80211_HT_PARAM_CHA_SEC_NONE;

        bss->reserved = 0;
        wcn36xx_smd_set_sta_params(wcn, vif, sta, sta_params);

        /* wcn->ssid is only valid in AP and IBSS mode */
        bss->ssid.length = vif_priv->ssid.length;
        memcpy(bss->ssid.ssid, vif_priv->ssid.ssid, vif_priv->ssid.length);

        bss->obss_prot_enabled = 0;
        bss->rmf = 0;
        bss->max_probe_resp_retry_limit = 0;
        bss->hidden_ssid = vif->bss_conf.hidden_ssid;
        bss->proxy_probe_resp = 0;
        bss->edca_params_valid = 0;

        /* FIXME: set acbe, acbk, acvi and acvo */

        bss->ext_set_sta_key_param_valid = 0;

        /* FIXME: set ext_set_sta_key_param */

        bss->spectrum_mgt_enable = 0;
        bss->tx_mgmt_power = 0;
        bss->max_tx_power = WCN36XX_MAX_POWER(wcn);
        bss->action = update;

        vif_priv->bss_type = bss->bss_type;

        wcn36xx_dbg(WCN36XX_DBG_HAL,
                    "hal config bss bssid %pM self_mac_addr %pM bss_type %d oper_mode %d nw_type %d\n",
                    bss->bssid, bss->self_mac_addr, bss->bss_type,
                    bss->oper_mode, bss->nw_type);

        wcn36xx_dbg(WCN36XX_DBG_HAL,
                    "- sta bssid %pM action %d sta_index %d bssid_index %d aid %d type %d mac %pM\n",
                    sta_params->bssid, sta_params->action,
                    sta_params->sta_index, sta_params->bssid_index,
                    sta_params->aid, sta_params->type,
                    sta_params->mac);

        if (!wcn36xx_is_fw_version(wcn, 1, 2, 2, 24)) {
                ret = wcn36xx_smd_config_bss_v1(wcn, &msg);
        } else {
                PREPARE_HAL_BUF(wcn->hal_buf, msg);

                ret = wcn36xx_smd_send_and_wait(wcn, msg.header.len);
        }
        if (ret) {
                wcn36xx_err("Sending hal_config_bss failed\n");
                goto out;
        }
        ret = wcn36xx_smd_config_bss_rsp(wcn,
                                         vif,
                                         sta,
                                         wcn->hal_buf,
                                         wcn->hal_rsp_len);
        if (ret) {
                wcn36xx_err("hal_config_bss response failed err=%d\n", ret);
                goto out;
        }
out:
        mutex_unlock(&wcn->hal_mutex);
        return ret;
}

int wcn36xx_smd_delete_bss(struct wcn36xx *wcn, struct ieee80211_vif *vif)
{
        struct wcn36xx_hal_delete_bss_req_msg msg_body;
        struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
        int ret = 0;

        mutex_lock(&wcn->hal_mutex);

        if (vif_priv->bss_index == WCN36XX_HAL_BSS_INVALID_IDX)
                goto out;

        INIT_HAL_MSG(msg_body, WCN36XX_HAL_DELETE_BSS_REQ);

        msg_body.bss_index = vif_priv->bss_index;

        PREPARE_HAL_BUF(wcn->hal_buf, msg_body);

        wcn36xx_dbg(WCN36XX_DBG_HAL, "hal delete bss %d\n", msg_body.bss_index);

        ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
        if (ret) {
                wcn36xx_err("Sending hal_delete_bss failed\n");
                goto out;
        }
        ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
        if (ret) {
                wcn36xx_err("hal_delete_bss response failed err=%d\n", ret);
                goto out;
        }

        vif_priv->bss_index = WCN36XX_HAL_BSS_INVALID_IDX;
out:
        mutex_unlock(&wcn->hal_mutex);
        return ret;
}

int wcn36xx_smd_send_beacon(struct wcn36xx *wcn, struct ieee80211_vif *vif,
                            struct sk_buff *skb_beacon, u16 tim_off,
                            u16 p2p_off)
{
        struct wcn36xx_hal_send_beacon_req_msg msg_body;
        int ret, pad, pvm_len;

        mutex_lock(&wcn->hal_mutex);
        INIT_HAL_MSG(msg_body, WCN36XX_HAL_SEND_BEACON_REQ);

        pvm_len = skb_beacon->data[tim_off + 1] - 3;
        pad = TIM_MIN_PVM_SIZE - pvm_len;

        /* Padding is irrelevant to mesh mode since tim_off is always 0. */
        if (vif->type == NL80211_IFTYPE_MESH_POINT)
                pad = 0;

        msg_body.beacon_length = skb_beacon->len + pad;
        /* TODO need to find out why + 6 is needed */
        msg_body.beacon_length6 = msg_body.beacon_length + 6;

        if (msg_body.beacon_length > BEACON_TEMPLATE_SIZE) {
                wcn36xx_err("Beacon is to big: beacon size=%d\n",
                              msg_body.beacon_length);
                ret = -ENOMEM;
                goto out;
        }
        memcpy(msg_body.beacon, skb_beacon->data, skb_beacon->len);
        memcpy(msg_body.bssid, vif->addr, ETH_ALEN);

        if (pad > 0) {
                /*
                 * The wcn36xx FW has a fixed size for the PVM in the TIM. If
                 * given the beacon template from mac80211 with a PVM shorter
                 * than the FW expectes it will overwrite the data after the
                 * TIM.
                 */
                wcn36xx_dbg(WCN36XX_DBG_HAL, "Pad TIM PVM. %d bytes at %d\n",
                            pad, pvm_len);
                memmove(&msg_body.beacon[tim_off + 5 + pvm_len + pad],
                        &msg_body.beacon[tim_off + 5 + pvm_len],
                        skb_beacon->len - (tim_off + 5 + pvm_len));
                memset(&msg_body.beacon[tim_off + 5 + pvm_len], 0, pad);
                msg_body.beacon[tim_off + 1] += pad;
        }

        /* TODO need to find out why this is needed? */
        if (vif->type == NL80211_IFTYPE_MESH_POINT)
                /* mesh beacon don't need this, so push further down */
                msg_body.tim_ie_offset = 256;
        else
                msg_body.tim_ie_offset = tim_off+4;
        msg_body.p2p_ie_offset = p2p_off;
        PREPARE_HAL_BUF(wcn->hal_buf, msg_body);

        wcn36xx_dbg(WCN36XX_DBG_HAL,
                    "hal send beacon beacon_length %d\n",
                    msg_body.beacon_length);

        ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
        if (ret) {
                wcn36xx_err("Sending hal_send_beacon failed\n");
                goto out;
        }
        ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
        if (ret) {
                wcn36xx_err("hal_send_beacon response failed err=%d\n", ret);
                goto out;
        }
out:
        mutex_unlock(&wcn->hal_mutex);
        return ret;
}

int wcn36xx_smd_update_proberesp_tmpl(struct wcn36xx *wcn,
                                      struct ieee80211_vif *vif,
                                      struct sk_buff *skb)
{
        struct wcn36xx_hal_send_probe_resp_req_msg msg;
        int ret;

        mutex_lock(&wcn->hal_mutex);
        INIT_HAL_MSG(msg, WCN36XX_HAL_UPDATE_PROBE_RSP_TEMPLATE_REQ);

        if (skb->len > BEACON_TEMPLATE_SIZE) {
                wcn36xx_warn("probe response template is too big: %d\n",
                             skb->len);
                ret = -E2BIG;
                goto out;
        }

        msg.probe_resp_template_len = skb->len;
        memcpy(&msg.probe_resp_template, skb->data, skb->len);

        memcpy(msg.bssid, vif->addr, ETH_ALEN);

        PREPARE_HAL_BUF(wcn->hal_buf, msg);

        wcn36xx_dbg(WCN36XX_DBG_HAL,
                    "hal update probe rsp len %d bssid %pM\n",
                    msg.probe_resp_template_len, msg.bssid);

        ret = wcn36xx_smd_send_and_wait(wcn, msg.header.len);
        if (ret) {
                wcn36xx_err("Sending hal_update_proberesp_tmpl failed\n");
                goto out;
        }
        ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
        if (ret) {
                wcn36xx_err("hal_update_proberesp_tmpl response failed err=%d\n",
                            ret);
                goto out;
        }
out:
        mutex_unlock(&wcn->hal_mutex);
        return ret;
}

int wcn36xx_smd_set_stakey(struct wcn36xx *wcn,
                           enum ani_ed_type enc_type,
                           u8 keyidx,
                           u8 keylen,
                           u8 *key,
                           u8 sta_index)
{
        struct wcn36xx_hal_set_sta_key_req_msg msg_body;
        int ret;

        mutex_lock(&wcn->hal_mutex);
        INIT_HAL_MSG(msg_body, WCN36XX_HAL_SET_STAKEY_REQ);

        msg_body.set_sta_key_params.sta_index = sta_index;
        msg_body.set_sta_key_params.enc_type = enc_type;

        if (enc_type == WCN36XX_HAL_ED_WEP104 ||
            enc_type == WCN36XX_HAL_ED_WEP40) {
                /* Use bss key for wep (static) */
                msg_body.set_sta_key_params.def_wep_idx = keyidx;
                msg_body.set_sta_key_params.wep_type = 0;
        } else {
                msg_body.set_sta_key_params.key[0].id = keyidx;
                msg_body.set_sta_key_params.key[0].unicast = 1;
                msg_body.set_sta_key_params.key[0].direction = WCN36XX_HAL_TX_RX;
                msg_body.set_sta_key_params.key[0].pae_role = 0;
                msg_body.set_sta_key_params.key[0].length = keylen;
                memcpy(msg_body.set_sta_key_params.key[0].key, key, keylen);
        }

        msg_body.set_sta_key_params.single_tid_rc = 1;

        PREPARE_HAL_BUF(wcn->hal_buf, msg_body);

        ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
        if (ret) {
                wcn36xx_err("Sending hal_set_stakey failed\n");
                goto out;
        }
        ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
        if (ret) {
                wcn36xx_err("hal_set_stakey response failed err=%d\n", ret);
                goto out;
        }
out:
        mutex_unlock(&wcn->hal_mutex);
        return ret;
}

int wcn36xx_smd_set_bsskey(struct wcn36xx *wcn,
                           enum ani_ed_type enc_type,
                           u8 bssidx,
                           u8 keyidx,
                           u8 keylen,
                           u8 *key)
{
        struct wcn36xx_hal_set_bss_key_req_msg msg_body;
        int ret;

        mutex_lock(&wcn->hal_mutex);
        INIT_HAL_MSG(msg_body, WCN36XX_HAL_SET_BSSKEY_REQ);
        msg_body.bss_idx = bssidx;
        msg_body.enc_type = enc_type;
        msg_body.num_keys = 1;
        msg_body.keys[0].id = keyidx;
        msg_body.keys[0].unicast = 0;
        msg_body.keys[0].direction = WCN36XX_HAL_RX_ONLY;
        msg_body.keys[0].pae_role = 0;
        msg_body.keys[0].length = keylen;
        memcpy(msg_body.keys[0].key, key, keylen);

        PREPARE_HAL_BUF(wcn->hal_buf, msg_body);

        ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
        if (ret) {
                wcn36xx_err("Sending hal_set_bsskey failed\n");
                goto out;
        }
        ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
        if (ret) {
                wcn36xx_err("hal_set_bsskey response failed err=%d\n", ret);
                goto out;
        }
out:
        mutex_unlock(&wcn->hal_mutex);
        return ret;
}

int wcn36xx_smd_remove_stakey(struct wcn36xx *wcn,
                              enum ani_ed_type enc_type,
                              u8 keyidx,
                              u8 sta_index)
{
        struct wcn36xx_hal_remove_sta_key_req_msg msg_body;
        int ret;

        mutex_lock(&wcn->hal_mutex);
        INIT_HAL_MSG(msg_body, WCN36XX_HAL_RMV_STAKEY_REQ);

        msg_body.sta_idx = sta_index;
        msg_body.enc_type = enc_type;
        msg_body.key_id = keyidx;

        PREPARE_HAL_BUF(wcn->hal_buf, msg_body);

        ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
        if (ret) {
                wcn36xx_err("Sending hal_remove_stakey failed\n");
                goto out;
        }
        ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
        if (ret) {
                wcn36xx_err("hal_remove_stakey response failed err=%d\n", ret);
                goto out;
        }
out:
        mutex_unlock(&wcn->hal_mutex);
        return ret;
}

int wcn36xx_smd_remove_bsskey(struct wcn36xx *wcn,
                              enum ani_ed_type enc_type,
                              u8 bssidx,
                              u8 keyidx)
{
        struct wcn36xx_hal_remove_bss_key_req_msg msg_body;
        int ret;

        mutex_lock(&wcn->hal_mutex);
        INIT_HAL_MSG(msg_body, WCN36XX_HAL_RMV_BSSKEY_REQ);
        msg_body.bss_idx = bssidx;
        msg_body.enc_type = enc_type;
        msg_body.key_id = keyidx;

        PREPARE_HAL_BUF(wcn->hal_buf, msg_body);

        ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
        if (ret) {
                wcn36xx_err("Sending hal_remove_bsskey failed\n");
                goto out;
        }
        ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
        if (ret) {
                wcn36xx_err("hal_remove_bsskey response failed err=%d\n", ret);
                goto out;
        }
out:
        mutex_unlock(&wcn->hal_mutex);
        return ret;
}

int wcn36xx_smd_enter_bmps(struct wcn36xx *wcn, struct ieee80211_vif *vif)
{
        struct wcn36xx_hal_enter_bmps_req_msg msg_body;
        struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
        int ret;

        mutex_lock(&wcn->hal_mutex);
        INIT_HAL_MSG(msg_body, WCN36XX_HAL_ENTER_BMPS_REQ);

        msg_body.bss_index = vif_priv->bss_index;
        msg_body.tbtt = vif->bss_conf.sync_tsf;
        msg_body.dtim_period = vif_priv->dtim_period;

        PREPARE_HAL_BUF(wcn->hal_buf, msg_body);

        ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
        if (ret) {
                wcn36xx_err("Sending hal_enter_bmps failed\n");
                goto out;
        }
        ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
        if (ret) {
                wcn36xx_err("hal_enter_bmps response failed err=%d\n", ret);
                goto out;
        }
out:
        mutex_unlock(&wcn->hal_mutex);
        return ret;
}

int wcn36xx_smd_exit_bmps(struct wcn36xx *wcn, struct ieee80211_vif *vif)
{
        struct wcn36xx_hal_exit_bmps_req_msg msg_body;
        struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
        int ret;

        mutex_lock(&wcn->hal_mutex);
        INIT_HAL_MSG(msg_body, WCN36XX_HAL_EXIT_BMPS_REQ);

        msg_body.bss_index = vif_priv->bss_index;

        PREPARE_HAL_BUF(wcn->hal_buf, msg_body);

        ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
        if (ret) {
                wcn36xx_err("Sending hal_exit_bmps failed\n");
                goto out;
        }
        ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
        if (ret) {
                wcn36xx_err("hal_exit_bmps response failed err=%d\n", ret);
                goto out;
        }
out:
        mutex_unlock(&wcn->hal_mutex);
        return ret;
}
int wcn36xx_smd_set_power_params(struct wcn36xx *wcn, bool ignore_dtim)
{
        struct wcn36xx_hal_set_power_params_req_msg msg_body;
        int ret;

        mutex_lock(&wcn->hal_mutex);
        INIT_HAL_MSG(msg_body, WCN36XX_HAL_SET_POWER_PARAMS_REQ);

        /*
         * When host is down ignore every second dtim
         */
        if (ignore_dtim) {
                msg_body.ignore_dtim = 1;
                msg_body.dtim_period = 2;
        }
        msg_body.listen_interval = WCN36XX_LISTEN_INTERVAL(wcn);

        PREPARE_HAL_BUF(wcn->hal_buf, msg_body);

        ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
        if (ret) {
                wcn36xx_err("Sending hal_set_power_params failed\n");
                goto out;
        }

out:
        mutex_unlock(&wcn->hal_mutex);
        return ret;
}
/* Notice: This function should be called after associated, or else it
 * will be invalid
 */
int wcn36xx_smd_keep_alive_req(struct wcn36xx *wcn,
                               struct ieee80211_vif *vif,
                               int packet_type)
{
        struct wcn36xx_hal_keep_alive_req_msg msg_body;
        struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
        int ret;

        mutex_lock(&wcn->hal_mutex);
        INIT_HAL_MSG(msg_body, WCN36XX_HAL_KEEP_ALIVE_REQ);

        if (packet_type == WCN36XX_HAL_KEEP_ALIVE_NULL_PKT) {
                msg_body.bss_index = vif_priv->bss_index;
                msg_body.packet_type = WCN36XX_HAL_KEEP_ALIVE_NULL_PKT;
                msg_body.time_period = WCN36XX_KEEP_ALIVE_TIME_PERIOD;
        } else if (packet_type == WCN36XX_HAL_KEEP_ALIVE_UNSOLICIT_ARP_RSP) {
                /* TODO: it also support ARP response type */
        } else {
                wcn36xx_warn("unknown keep alive packet type %d\n", packet_type);
                ret = -EINVAL;
                goto out;
        }

        PREPARE_HAL_BUF(wcn->hal_buf, msg_body);

        ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
        if (ret) {
                wcn36xx_err("Sending hal_keep_alive failed\n");
                goto out;
        }
        ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
        if (ret) {
                wcn36xx_err("hal_keep_alive response failed err=%d\n", ret);
                goto out;
        }
out:
        mutex_unlock(&wcn->hal_mutex);
        return ret;
}

int wcn36xx_smd_dump_cmd_req(struct wcn36xx *wcn, u32 arg1, u32 arg2,
                             u32 arg3, u32 arg4, u32 arg5)
{
        struct wcn36xx_hal_dump_cmd_req_msg msg_body;
        int ret;

        mutex_lock(&wcn->hal_mutex);
        INIT_HAL_MSG(msg_body, WCN36XX_HAL_DUMP_COMMAND_REQ);

        msg_body.arg1 = arg1;
        msg_body.arg2 = arg2;
        msg_body.arg3 = arg3;
        msg_body.arg4 = arg4;
        msg_body.arg5 = arg5;

        PREPARE_HAL_BUF(wcn->hal_buf, msg_body);

        ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
        if (ret) {
                wcn36xx_err("Sending hal_dump_cmd failed\n");
                goto out;
        }
        ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
        if (ret) {
                wcn36xx_err("hal_dump_cmd response failed err=%d\n", ret);
                goto out;

        }
out:
        mutex_unlock(&wcn->hal_mutex);
        return ret;
}

void set_feat_caps(u32 *bitmap, enum place_holder_in_cap_bitmap cap)
{
        int arr_idx, bit_idx;

        if (cap < 0 || cap > 127) {
                wcn36xx_warn("error cap idx %d\n", cap);
                return;
        }

        arr_idx = cap / 32;
        bit_idx = cap % 32;
        bitmap[arr_idx] |= (1 << bit_idx);
}

int get_feat_caps(u32 *bitmap, enum place_holder_in_cap_bitmap cap)
{
        int arr_idx, bit_idx;

        if (cap < 0 || cap > 127) {
                wcn36xx_warn("error cap idx %d\n", cap);
                return -EINVAL;
        }

        arr_idx = cap / 32;
        bit_idx = cap % 32;

        return (bitmap[arr_idx] & (1 << bit_idx)) ? 1 : 0;
}

void clear_feat_caps(u32 *bitmap, enum place_holder_in_cap_bitmap cap)
{
        int arr_idx, bit_idx;

        if (cap < 0 || cap > 127) {
                wcn36xx_warn("error cap idx %d\n", cap);
                return;
        }

        arr_idx = cap / 32;
        bit_idx = cap % 32;
        bitmap[arr_idx] &= ~(1 << bit_idx);
}

int wcn36xx_smd_feature_caps_exchange(struct wcn36xx *wcn)
{
        struct wcn36xx_hal_feat_caps_msg msg_body, *rsp;
        int ret, i;

        mutex_lock(&wcn->hal_mutex);
        INIT_HAL_MSG(msg_body, WCN36XX_HAL_FEATURE_CAPS_EXCHANGE_REQ);

        set_feat_caps(msg_body.feat_caps, STA_POWERSAVE);

        PREPARE_HAL_BUF(wcn->hal_buf, msg_body);

        ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
        if (ret) {
                wcn36xx_err("Sending hal_feature_caps_exchange failed\n");
                goto out;
        }
        if (wcn->hal_rsp_len != sizeof(*rsp)) {
                wcn36xx_err("Invalid hal_feature_caps_exchange response");
                goto out;
        }

        rsp = (struct wcn36xx_hal_feat_caps_msg *) wcn->hal_buf;

        for (i = 0; i < WCN36XX_HAL_CAPS_SIZE; i++)
                wcn->fw_feat_caps[i] = rsp->feat_caps[i];
out:
        mutex_unlock(&wcn->hal_mutex);
        return ret;
}

int wcn36xx_smd_add_ba_session(struct wcn36xx *wcn,
                struct ieee80211_sta *sta,
                u16 tid,
                u16 *ssn,
                u8 direction,
                u8 sta_index)
{
        struct wcn36xx_hal_add_ba_session_req_msg msg_body;
        int ret;

        mutex_lock(&wcn->hal_mutex);
        INIT_HAL_MSG(msg_body, WCN36XX_HAL_ADD_BA_SESSION_REQ);

        msg_body.sta_index = sta_index;
        memcpy(&msg_body.mac_addr, sta->addr, ETH_ALEN);
        msg_body.dialog_token = 0x10;
        msg_body.tid = tid;

        /* Immediate BA because Delayed BA is not supported */
        msg_body.policy = 1;
        msg_body.buffer_size = WCN36XX_AGGR_BUFFER_SIZE;
        msg_body.timeout = 0;
        if (ssn)
                msg_body.ssn = *ssn;
        msg_body.direction = direction;

        PREPARE_HAL_BUF(wcn->hal_buf, msg_body);

        ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
        if (ret) {
                wcn36xx_err("Sending hal_add_ba_session failed\n");
                goto out;
        }
        ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
        if (ret) {
                wcn36xx_err("hal_add_ba_session response failed err=%d\n", ret);
                goto out;
        }
out:
        mutex_unlock(&wcn->hal_mutex);
        return ret;
}

int wcn36xx_smd_add_ba(struct wcn36xx *wcn)
{
        struct wcn36xx_hal_add_ba_req_msg msg_body;
        int ret;

        mutex_lock(&wcn->hal_mutex);
        INIT_HAL_MSG(msg_body, WCN36XX_HAL_ADD_BA_REQ);

        msg_body.session_id = 0;
        msg_body.win_size = WCN36XX_AGGR_BUFFER_SIZE;

        PREPARE_HAL_BUF(wcn->hal_buf, msg_body);

        ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
        if (ret) {
                wcn36xx_err("Sending hal_add_ba failed\n");
                goto out;
        }
        ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
        if (ret) {
                wcn36xx_err("hal_add_ba response failed err=%d\n", ret);
                goto out;
        }
out:
        mutex_unlock(&wcn->hal_mutex);
        return ret;
}

int wcn36xx_smd_del_ba(struct wcn36xx *wcn, u16 tid, u8 sta_index)
{
        struct wcn36xx_hal_del_ba_req_msg msg_body;
        int ret;

        mutex_lock(&wcn->hal_mutex);
        INIT_HAL_MSG(msg_body, WCN36XX_HAL_DEL_BA_REQ);

        msg_body.sta_index = sta_index;
        msg_body.tid = tid;
        msg_body.direction = 0;
        PREPARE_HAL_BUF(wcn->hal_buf, msg_body);

        ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
        if (ret) {
                wcn36xx_err("Sending hal_del_ba failed\n");
                goto out;
        }
        ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
        if (ret) {
                wcn36xx_err("hal_del_ba response failed err=%d\n", ret);
                goto out;
        }
out:
        mutex_unlock(&wcn->hal_mutex);
        return ret;
}

static int wcn36xx_smd_trigger_ba_rsp(void *buf, int len)
{
        struct wcn36xx_hal_trigger_ba_rsp_msg *rsp;

        if (len < sizeof(*rsp))
                return -EINVAL;

        rsp = (struct wcn36xx_hal_trigger_ba_rsp_msg *) buf;
        return rsp->status;
}

int wcn36xx_smd_trigger_ba(struct wcn36xx *wcn, u8 sta_index)
{
        struct wcn36xx_hal_trigger_ba_req_msg msg_body;
        struct wcn36xx_hal_trigger_ba_req_candidate *candidate;
        int ret;

        mutex_lock(&wcn->hal_mutex);
        INIT_HAL_MSG(msg_body, WCN36XX_HAL_TRIGGER_BA_REQ);

        msg_body.session_id = 0;
        msg_body.candidate_cnt = 1;
        msg_body.header.len += sizeof(*candidate);
        PREPARE_HAL_BUF(wcn->hal_buf, msg_body);

        candidate = (struct wcn36xx_hal_trigger_ba_req_candidate *)
                (wcn->hal_buf + sizeof(msg_body));
        candidate->sta_index = sta_index;
        candidate->tid_bitmap = 1;

        ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
        if (ret) {
                wcn36xx_err("Sending hal_trigger_ba failed\n");
                goto out;
        }
        ret = wcn36xx_smd_trigger_ba_rsp(wcn->hal_buf, wcn->hal_rsp_len);
        if (ret) {
                wcn36xx_err("hal_trigger_ba response failed err=%d\n", ret);
                goto out;
        }
out:
        mutex_unlock(&wcn->hal_mutex);
        return ret;
}

static int wcn36xx_smd_tx_compl_ind(struct wcn36xx *wcn, void *buf, size_t len)
{
        struct wcn36xx_hal_tx_compl_ind_msg *rsp = buf;

        if (len != sizeof(*rsp)) {
                wcn36xx_warn("Bad TX complete indication\n");
                return -EIO;
        }

        wcn36xx_dxe_tx_ack_ind(wcn, rsp->status);

        return 0;
}

static int wcn36xx_smd_hw_scan_ind(struct wcn36xx *wcn, void *buf, size_t len)
{
        struct wcn36xx_hal_scan_offload_ind *rsp = buf;
        struct cfg80211_scan_info scan_info = {};

        if (len != sizeof(*rsp)) {
                wcn36xx_warn("Corrupted delete scan indication\n");
                return -EIO;
        }

        wcn36xx_dbg(WCN36XX_DBG_HAL, "scan indication (type %x)\n", rsp->type);

        switch (rsp->type) {
        case WCN36XX_HAL_SCAN_IND_FAILED:
        case WCN36XX_HAL_SCAN_IND_DEQUEUED:
                scan_info.aborted = true;
                /* fall through */
        case WCN36XX_HAL_SCAN_IND_COMPLETED:
                mutex_lock(&wcn->scan_lock);
                wcn->scan_req = NULL;
                if (wcn->scan_aborted)
                        scan_info.aborted = true;
                mutex_unlock(&wcn->scan_lock);
                ieee80211_scan_completed(wcn->hw, &scan_info);
                break;
        case WCN36XX_HAL_SCAN_IND_STARTED:
        case WCN36XX_HAL_SCAN_IND_FOREIGN_CHANNEL:
        case WCN36XX_HAL_SCAN_IND_PREEMPTED:
        case WCN36XX_HAL_SCAN_IND_RESTARTED:
                break;
        default:
                wcn36xx_warn("Unknown scan indication type %x\n", rsp->type);
        }

        return 0;
}

static int wcn36xx_smd_missed_beacon_ind(struct wcn36xx *wcn,
                                         void *buf,
                                         size_t len)
{
        struct wcn36xx_hal_missed_beacon_ind_msg *rsp = buf;
        struct ieee80211_vif *vif = NULL;
        struct wcn36xx_vif *tmp;

        /* Old FW does not have bss index */
        if (wcn36xx_is_fw_version(wcn, 1, 2, 2, 24)) {
                list_for_each_entry(tmp, &wcn->vif_list, list) {
                        wcn36xx_dbg(WCN36XX_DBG_HAL, "beacon missed bss_index %d\n",
                                    tmp->bss_index);
                        vif = wcn36xx_priv_to_vif(tmp);
                        ieee80211_connection_loss(vif);
                }
                return 0;
        }

        if (len != sizeof(*rsp)) {
                wcn36xx_warn("Corrupted missed beacon indication\n");
                return -EIO;
        }

        list_for_each_entry(tmp, &wcn->vif_list, list) {
                if (tmp->bss_index == rsp->bss_index) {
                        wcn36xx_dbg(WCN36XX_DBG_HAL, "beacon missed bss_index %d\n",
                                    rsp->bss_index);
                        vif = wcn36xx_priv_to_vif(tmp);
                        ieee80211_connection_loss(vif);
                        return 0;
                }
        }

        wcn36xx_warn("BSS index %d not found\n", rsp->bss_index);
        return -ENOENT;
}

static int wcn36xx_smd_delete_sta_context_ind(struct wcn36xx *wcn,
                                              void *buf,
                                              size_t len)
{
        struct wcn36xx_hal_delete_sta_context_ind_msg *rsp = buf;
        struct wcn36xx_vif *tmp;
        struct ieee80211_sta *sta;

        if (len != sizeof(*rsp)) {
                wcn36xx_warn("Corrupted delete sta indication\n");
                return -EIO;
        }

        wcn36xx_dbg(WCN36XX_DBG_HAL, "delete station indication %pM index %d\n",
                    rsp->addr2, rsp->sta_id);

        list_for_each_entry(tmp, &wcn->vif_list, list) {
                rcu_read_lock();
                sta = ieee80211_find_sta(wcn36xx_priv_to_vif(tmp), rsp->addr2);
                if (sta)
                        ieee80211_report_low_ack(sta, 0);
                rcu_read_unlock();
                if (sta)
                        return 0;
        }

        wcn36xx_warn("STA with addr %pM and index %d not found\n",
                     rsp->addr2,
                     rsp->sta_id);
        return -ENOENT;
}

static int wcn36xx_smd_print_reg_info_ind(struct wcn36xx *wcn,
                                          void *buf,
                                          size_t len)
{
        struct wcn36xx_hal_print_reg_info_ind *rsp = buf;
        int i;

        if (len < sizeof(*rsp)) {
                wcn36xx_warn("Corrupted print reg info indication\n");
                return -EIO;
        }

        wcn36xx_dbg(WCN36XX_DBG_HAL,
                    "reginfo indication, scenario: 0x%x reason: 0x%x\n",
                    rsp->scenario, rsp->reason);

        for (i = 0; i < rsp->count; i++) {
                wcn36xx_dbg(WCN36XX_DBG_HAL, "\t0x%x: 0x%x\n",
                            rsp->regs[i].addr, rsp->regs[i].value);
        }

        return 0;
}

int wcn36xx_smd_update_cfg(struct wcn36xx *wcn, u32 cfg_id, u32 value)
{
        struct wcn36xx_hal_update_cfg_req_msg msg_body, *body;
        size_t len;
        int ret;

        mutex_lock(&wcn->hal_mutex);
        INIT_HAL_MSG(msg_body, WCN36XX_HAL_UPDATE_CFG_REQ);

        PREPARE_HAL_BUF(wcn->hal_buf, msg_body);

        body = (struct wcn36xx_hal_update_cfg_req_msg *) wcn->hal_buf;
        len = msg_body.header.len;

        put_cfg_tlv_u32(wcn, &len, cfg_id, value);
        body->header.len = len;
        body->len = len - sizeof(*body);

        ret = wcn36xx_smd_send_and_wait(wcn, body->header.len);
        if (ret) {
                wcn36xx_err("Sending hal_update_cfg failed\n");
                goto out;
        }
        ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
        if (ret) {
                wcn36xx_err("hal_update_cfg response failed err=%d\n", ret);
                goto out;
        }
out:
        mutex_unlock(&wcn->hal_mutex);
        return ret;
}

int wcn36xx_smd_set_mc_list(struct wcn36xx *wcn,
                            struct ieee80211_vif *vif,
                            struct wcn36xx_hal_rcv_flt_mc_addr_list_type *fp)
{
        struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
        struct wcn36xx_hal_rcv_flt_pkt_set_mc_list_req_msg *msg_body = NULL;
        int ret;

        mutex_lock(&wcn->hal_mutex);

        msg_body = (struct wcn36xx_hal_rcv_flt_pkt_set_mc_list_req_msg *)
                   wcn->hal_buf;
        init_hal_msg(&msg_body->header, WCN36XX_HAL_8023_MULTICAST_LIST_REQ,
                     sizeof(msg_body->mc_addr_list));

        /* An empty list means all mc traffic will be received */
        if (fp)
                memcpy(&msg_body->mc_addr_list, fp,
                       sizeof(msg_body->mc_addr_list));
        else
                msg_body->mc_addr_list.mc_addr_count = 0;

        msg_body->mc_addr_list.bss_index = vif_priv->bss_index;

        ret = wcn36xx_smd_send_and_wait(wcn, msg_body->header.len);
        if (ret) {
                wcn36xx_err("Sending HAL_8023_MULTICAST_LIST failed\n");
                goto out;
        }
        ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
        if (ret) {
                wcn36xx_err("HAL_8023_MULTICAST_LIST rsp failed err=%d\n", ret);
                goto out;
        }
out:
        mutex_unlock(&wcn->hal_mutex);
        return ret;
}

int wcn36xx_smd_rsp_process(struct rpmsg_device *rpdev,
                            void *buf, int len, void *priv, u32 addr)
{
        const struct wcn36xx_hal_msg_header *msg_header = buf;
        struct ieee80211_hw *hw = priv;
        struct wcn36xx *wcn = hw->priv;
        struct wcn36xx_hal_ind_msg *msg_ind;
        wcn36xx_dbg_dump(WCN36XX_DBG_SMD_DUMP, "SMD <<< ", buf, len);

        switch (msg_header->msg_type) {
        case WCN36XX_HAL_START_RSP:
        case WCN36XX_HAL_CONFIG_STA_RSP:
        case WCN36XX_HAL_CONFIG_BSS_RSP:
        case WCN36XX_HAL_ADD_STA_SELF_RSP:
        case WCN36XX_HAL_STOP_RSP:
        case WCN36XX_HAL_DEL_STA_SELF_RSP:
        case WCN36XX_HAL_DELETE_STA_RSP:
        case WCN36XX_HAL_INIT_SCAN_RSP:
        case WCN36XX_HAL_START_SCAN_RSP:
        case WCN36XX_HAL_END_SCAN_RSP:
        case WCN36XX_HAL_FINISH_SCAN_RSP:
        case WCN36XX_HAL_DOWNLOAD_NV_RSP:
        case WCN36XX_HAL_DELETE_BSS_RSP:
        case WCN36XX_HAL_SEND_BEACON_RSP:
        case WCN36XX_HAL_SET_LINK_ST_RSP:
        case WCN36XX_HAL_UPDATE_PROBE_RSP_TEMPLATE_RSP:
        case WCN36XX_HAL_SET_BSSKEY_RSP:
        case WCN36XX_HAL_SET_STAKEY_RSP:
        case WCN36XX_HAL_RMV_STAKEY_RSP:
        case WCN36XX_HAL_RMV_BSSKEY_RSP:
        case WCN36XX_HAL_ENTER_BMPS_RSP:
        case WCN36XX_HAL_SET_POWER_PARAMS_RSP:
        case WCN36XX_HAL_EXIT_BMPS_RSP:
        case WCN36XX_HAL_KEEP_ALIVE_RSP:
        case WCN36XX_HAL_DUMP_COMMAND_RSP:
        case WCN36XX_HAL_ADD_BA_SESSION_RSP:
        case WCN36XX_HAL_ADD_BA_RSP:
        case WCN36XX_HAL_DEL_BA_RSP:
        case WCN36XX_HAL_TRIGGER_BA_RSP:
        case WCN36XX_HAL_UPDATE_CFG_RSP:
        case WCN36XX_HAL_JOIN_RSP:
        case WCN36XX_HAL_UPDATE_SCAN_PARAM_RSP:
        case WCN36XX_HAL_CH_SWITCH_RSP:
        case WCN36XX_HAL_PROCESS_PTT_RSP:
        case WCN36XX_HAL_FEATURE_CAPS_EXCHANGE_RSP:
        case WCN36XX_HAL_8023_MULTICAST_LIST_RSP:
        case WCN36XX_HAL_START_SCAN_OFFLOAD_RSP:
        case WCN36XX_HAL_STOP_SCAN_OFFLOAD_RSP:
                memcpy(wcn->hal_buf, buf, len);
                wcn->hal_rsp_len = len;
                complete(&wcn->hal_rsp_compl);
                break;

        case WCN36XX_HAL_COEX_IND:
        case WCN36XX_HAL_AVOID_FREQ_RANGE_IND:
        case WCN36XX_HAL_DEL_BA_IND:
        case WCN36XX_HAL_OTA_TX_COMPL_IND:
        case WCN36XX_HAL_MISSED_BEACON_IND:
        case WCN36XX_HAL_DELETE_STA_CONTEXT_IND:
        case WCN36XX_HAL_PRINT_REG_INFO_IND:
        case WCN36XX_HAL_SCAN_OFFLOAD_IND:
                msg_ind = kmalloc(sizeof(*msg_ind) + len, GFP_ATOMIC);
                if (!msg_ind) {
                        wcn36xx_err("Run out of memory while handling SMD_EVENT (%d)\n",
                                    msg_header->msg_type);
                        return -ENOMEM;
                }

                msg_ind->msg_len = len;
                memcpy(msg_ind->msg, buf, len);

                spin_lock(&wcn->hal_ind_lock);
                list_add_tail(&msg_ind->list, &wcn->hal_ind_queue);
                queue_work(wcn->hal_ind_wq, &wcn->hal_ind_work);
                spin_unlock(&wcn->hal_ind_lock);
                wcn36xx_dbg(WCN36XX_DBG_HAL, "indication arrived\n");
                break;
        default:
                wcn36xx_err("SMD_EVENT (%d) not supported\n",
                              msg_header->msg_type);
        }

        return 0;
}

static void wcn36xx_ind_smd_work(struct work_struct *work)
{
        struct wcn36xx *wcn =
                container_of(work, struct wcn36xx, hal_ind_work);

        for (;;) {
                struct wcn36xx_hal_msg_header *msg_header;
                struct wcn36xx_hal_ind_msg *hal_ind_msg;
                unsigned long flags;

                spin_lock_irqsave(&wcn->hal_ind_lock, flags);

                if (list_empty(&wcn->hal_ind_queue)) {
                        spin_unlock_irqrestore(&wcn->hal_ind_lock, flags);
                        return;
                }

                hal_ind_msg = list_first_entry(&wcn->hal_ind_queue,
                                               struct wcn36xx_hal_ind_msg,
                                               list);
                list_del(&hal_ind_msg->list);
                spin_unlock_irqrestore(&wcn->hal_ind_lock, flags);

                msg_header = (struct wcn36xx_hal_msg_header *)hal_ind_msg->msg;

                switch (msg_header->msg_type) {
                case WCN36XX_HAL_COEX_IND:
                case WCN36XX_HAL_DEL_BA_IND:
                case WCN36XX_HAL_AVOID_FREQ_RANGE_IND:
                        break;
                case WCN36XX_HAL_OTA_TX_COMPL_IND:
                        wcn36xx_smd_tx_compl_ind(wcn,
                                                 hal_ind_msg->msg,
                                                 hal_ind_msg->msg_len);
                        break;
                case WCN36XX_HAL_MISSED_BEACON_IND:
                        wcn36xx_smd_missed_beacon_ind(wcn,
                                                      hal_ind_msg->msg,
                                                      hal_ind_msg->msg_len);
                        break;
                case WCN36XX_HAL_DELETE_STA_CONTEXT_IND:
                        wcn36xx_smd_delete_sta_context_ind(wcn,
                                                           hal_ind_msg->msg,
                                                           hal_ind_msg->msg_len);
                        break;
                case WCN36XX_HAL_PRINT_REG_INFO_IND:
                        wcn36xx_smd_print_reg_info_ind(wcn,
                                                       hal_ind_msg->msg,
                                                       hal_ind_msg->msg_len);
                        break;
                case WCN36XX_HAL_SCAN_OFFLOAD_IND:
                        wcn36xx_smd_hw_scan_ind(wcn, hal_ind_msg->msg,
                                                hal_ind_msg->msg_len);
                        break;
                default:
                        wcn36xx_err("SMD_EVENT (%d) not supported\n",
                                    msg_header->msg_type);
                }

                kfree(hal_ind_msg);
        }
}
int wcn36xx_smd_open(struct wcn36xx *wcn)
{
        wcn->hal_ind_wq = create_freezable_workqueue("wcn36xx_smd_ind");
        if (!wcn->hal_ind_wq)
                return -ENOMEM;

        INIT_WORK(&wcn->hal_ind_work, wcn36xx_ind_smd_work);
        INIT_LIST_HEAD(&wcn->hal_ind_queue);
        spin_lock_init(&wcn->hal_ind_lock);

        return 0;
}

void wcn36xx_smd_close(struct wcn36xx *wcn)
{
        struct wcn36xx_hal_ind_msg *msg, *tmp;

        cancel_work_sync(&wcn->hal_ind_work);
        destroy_workqueue(wcn->hal_ind_wq);

        list_for_each_entry_safe(msg, tmp, &wcn->hal_ind_queue, list)
                kfree(msg);
}