acx.c

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#include "acx.h"

#include <linux/module.h>
#include <linux/slab.h>
#include <linux/crc7.h>

#include "wl1251.h"
#include "reg.h"
#include "cmd.h"
#include "ps.h"

int wl1251_acx_frame_rates(struct wl1251 *wl, u8 ctrl_rate, u8 ctrl_mod,
               u8 mgt_rate, u8 mgt_mod)
{
    struct acx_fw_gen_frame_rates *rates;
    int ret;

    wl1251_debug(DEBUG_ACX, "acx frame rates");

    rates = kzalloc(sizeof(*rates), GFP_KERNEL);
    if (!rates) {
        ret = -ENOMEM;
        goto out;
    }

    rates->tx_ctrl_frame_rate = ctrl_rate;
    rates->tx_ctrl_frame_mod = ctrl_mod;
    rates->tx_mgt_frame_rate = mgt_rate;
    rates->tx_mgt_frame_mod = mgt_mod;

    ret = wl1251_cmd_configure(wl, ACX_FW_GEN_FRAME_RATES,
                   rates, sizeof(*rates));
    if (ret < 0) {
        wl1251_error("Failed to set FW rates and modulation");
        goto out;
    }

out:
    kfree(rates);
    return ret;
}


int wl1251_acx_station_id(struct wl1251 *wl)
{
    struct acx_dot11_station_id *mac;
    int ret, i;

    wl1251_debug(DEBUG_ACX, "acx dot11_station_id");

    mac = kzalloc(sizeof(*mac), GFP_KERNEL);
    if (!mac) {
        ret = -ENOMEM;
        goto out;
    }

    for (i = 0; i < ETH_ALEN; i++)
        mac->mac[i] = wl->mac_addr[ETH_ALEN - 1 - i];

    ret = wl1251_cmd_configure(wl, DOT11_STATION_ID, mac, sizeof(*mac));
    if (ret < 0)
        goto out;

out:
    kfree(mac);
    return ret;
}

int wl1251_acx_default_key(struct wl1251 *wl, u8 key_id)
{
    struct acx_dot11_default_key *default_key;
    int ret;

    wl1251_debug(DEBUG_ACX, "acx dot11_default_key (%d)", key_id);

    default_key = kzalloc(sizeof(*default_key), GFP_KERNEL);
    if (!default_key) {
        ret = -ENOMEM;
        goto out;
    }

    default_key->id = key_id;

    ret = wl1251_cmd_configure(wl, DOT11_DEFAULT_KEY,
                   default_key, sizeof(*default_key));
    if (ret < 0) {
        wl1251_error("Couldn't set default key");
        goto out;
    }

    wl->default_key = key_id;

out:
    kfree(default_key);
    return ret;
}

int wl1251_acx_wake_up_conditions(struct wl1251 *wl, u8 wake_up_event,
                  u8 listen_interval)
{
    struct acx_wake_up_condition *wake_up;
    int ret;

    wl1251_debug(DEBUG_ACX, "acx wake up conditions");

    wake_up = kzalloc(sizeof(*wake_up), GFP_KERNEL);
    if (!wake_up) {
        ret = -ENOMEM;
        goto out;
    }

    wake_up->wake_up_event = wake_up_event;
    wake_up->listen_interval = listen_interval;

    ret = wl1251_cmd_configure(wl, ACX_WAKE_UP_CONDITIONS,
                   wake_up, sizeof(*wake_up));
    if (ret < 0) {
        wl1251_warning("could not set wake up conditions: %d", ret);
        goto out;
    }

out:
    kfree(wake_up);
    return ret;
}

int wl1251_acx_sleep_auth(struct wl1251 *wl, u8 sleep_auth)
{
    struct acx_sleep_auth *auth;
    int ret;

    wl1251_debug(DEBUG_ACX, "acx sleep auth");

    auth = kzalloc(sizeof(*auth), GFP_KERNEL);
    if (!auth) {
        ret = -ENOMEM;
        goto out;
    }

    auth->sleep_auth = sleep_auth;

    ret = wl1251_cmd_configure(wl, ACX_SLEEP_AUTH, auth, sizeof(*auth));

out:
    kfree(auth);
    return ret;
}

int wl1251_acx_fw_version(struct wl1251 *wl, char *buf, size_t len)
{
    struct acx_revision *rev;
    int ret;

    wl1251_debug(DEBUG_ACX, "acx fw rev");

    rev = kzalloc(sizeof(*rev), GFP_KERNEL);
    if (!rev) {
        ret = -ENOMEM;
        goto out;
    }

    ret = wl1251_cmd_interrogate(wl, ACX_FW_REV, rev, sizeof(*rev));
    if (ret < 0) {
        wl1251_warning("ACX_FW_REV interrogate failed");
        goto out;
    }

    /* be careful with the buffer sizes */
    strncpy(buf, rev->fw_version, min(len, sizeof(rev->fw_version)));

    /*
     * if the firmware version string is exactly
     * sizeof(rev->fw_version) long or fw_len is less than
     * sizeof(rev->fw_version) it won't be null terminated
     */
    buf[min(len, sizeof(rev->fw_version)) - 1] = '\0';

out:
    kfree(rev);
    return ret;
}

int wl1251_acx_tx_power(struct wl1251 *wl, int power)
{
    struct acx_current_tx_power *acx;
    int ret;

    wl1251_debug(DEBUG_ACX, "acx dot11_cur_tx_pwr");

    if (power < 0 || power > 25)
        return -EINVAL;

    acx = kzalloc(sizeof(*acx), GFP_KERNEL);
    if (!acx) {
        ret = -ENOMEM;
        goto out;
    }

    acx->current_tx_power = power * 10;

    ret = wl1251_cmd_configure(wl, DOT11_CUR_TX_PWR, acx, sizeof(*acx));
    if (ret < 0) {
        wl1251_warning("configure of tx power failed: %d", ret);
        goto out;
    }

out:
    kfree(acx);
    return ret;
}

int wl1251_acx_feature_cfg(struct wl1251 *wl)
{
    struct acx_feature_config *feature;
    int ret;

    wl1251_debug(DEBUG_ACX, "acx feature cfg");

    feature = kzalloc(sizeof(*feature), GFP_KERNEL);
    if (!feature) {
        ret = -ENOMEM;
        goto out;
    }

    /* DF_ENCRYPTION_DISABLE and DF_SNIFF_MODE_ENABLE are disabled */
    feature->data_flow_options = 0;
    feature->options = 0;

    ret = wl1251_cmd_configure(wl, ACX_FEATURE_CFG,
                   feature, sizeof(*feature));
    if (ret < 0) {
        wl1251_error("Couldn't set HW encryption");
        goto out;
    }

out:
    kfree(feature);
    return ret;
}

int wl1251_acx_mem_map(struct wl1251 *wl, struct acx_header *mem_map,
               size_t len)
{
    int ret;

    wl1251_debug(DEBUG_ACX, "acx mem map");

    ret = wl1251_cmd_interrogate(wl, ACX_MEM_MAP, mem_map, len);
    if (ret < 0)
        return ret;

    return 0;
}

int wl1251_acx_data_path_params(struct wl1251 *wl,
                struct acx_data_path_params_resp *resp)
{
    struct acx_data_path_params *params;
    int ret;

    wl1251_debug(DEBUG_ACX, "acx data path params");

    params = kzalloc(sizeof(*params), GFP_KERNEL);
    if (!params) {
        ret = -ENOMEM;
        goto out;
    }

    params->rx_packet_ring_chunk_size = DP_RX_PACKET_RING_CHUNK_SIZE;
    params->tx_packet_ring_chunk_size = DP_TX_PACKET_RING_CHUNK_SIZE;

    params->rx_packet_ring_chunk_num = DP_RX_PACKET_RING_CHUNK_NUM;
    params->tx_packet_ring_chunk_num = DP_TX_PACKET_RING_CHUNK_NUM;

    params->tx_complete_threshold = 1;

    params->tx_complete_ring_depth = FW_TX_CMPLT_BLOCK_SIZE;

    params->tx_complete_timeout = DP_TX_COMPLETE_TIME_OUT;

    ret = wl1251_cmd_configure(wl, ACX_DATA_PATH_PARAMS,
                   params, sizeof(*params));
    if (ret < 0)
        goto out;

    /* FIXME: shouldn't this be ACX_DATA_PATH_RESP_PARAMS? */
    ret = wl1251_cmd_interrogate(wl, ACX_DATA_PATH_PARAMS,
                     resp, sizeof(*resp));

    if (ret < 0) {
        wl1251_warning("failed to read data path parameters: %d", ret);
        goto out;
    } else if (resp->header.cmd.status != CMD_STATUS_SUCCESS) {
        wl1251_warning("data path parameter acx status failed");
        ret = -EIO;
        goto out;
    }

out:
    kfree(params);
    return ret;
}

int wl1251_acx_rx_msdu_life_time(struct wl1251 *wl, u32 life_time)
{
    struct acx_rx_msdu_lifetime *acx;
    int ret;

    wl1251_debug(DEBUG_ACX, "acx rx msdu life time");

    acx = kzalloc(sizeof(*acx), GFP_KERNEL);
    if (!acx) {
        ret = -ENOMEM;
        goto out;
    }

    acx->lifetime = life_time;
    ret = wl1251_cmd_configure(wl, DOT11_RX_MSDU_LIFE_TIME,
                   acx, sizeof(*acx));
    if (ret < 0) {
        wl1251_warning("failed to set rx msdu life time: %d", ret);
        goto out;
    }

out:
    kfree(acx);
    return ret;
}

int wl1251_acx_rx_config(struct wl1251 *wl, u32 config, u32 filter)
{
    struct acx_rx_config *rx_config;
    int ret;

    wl1251_debug(DEBUG_ACX, "acx rx config");

    rx_config = kzalloc(sizeof(*rx_config), GFP_KERNEL);
    if (!rx_config) {
        ret = -ENOMEM;
        goto out;
    }

    rx_config->config_options = config;
    rx_config->filter_options = filter;

    ret = wl1251_cmd_configure(wl, ACX_RX_CFG,
                   rx_config, sizeof(*rx_config));
    if (ret < 0) {
        wl1251_warning("failed to set rx config: %d", ret);
        goto out;
    }

out:
    kfree(rx_config);
    return ret;
}

int wl1251_acx_pd_threshold(struct wl1251 *wl)
{
    struct acx_packet_detection *pd;
    int ret;

    wl1251_debug(DEBUG_ACX, "acx data pd threshold");

    pd = kzalloc(sizeof(*pd), GFP_KERNEL);
    if (!pd) {
        ret = -ENOMEM;
        goto out;
    }

    /* FIXME: threshold value not set */

    ret = wl1251_cmd_configure(wl, ACX_PD_THRESHOLD, pd, sizeof(*pd));
    if (ret < 0) {
        wl1251_warning("failed to set pd threshold: %d", ret);
        goto out;
    }

out:
    kfree(pd);
    return ret;
}

int wl1251_acx_slot(struct wl1251 *wl, enum acx_slot_type slot_time)
{
    struct acx_slot *slot;
    int ret;

    wl1251_debug(DEBUG_ACX, "acx slot");

    slot = kzalloc(sizeof(*slot), GFP_KERNEL);
    if (!slot) {
        ret = -ENOMEM;
        goto out;
    }

    slot->wone_index = STATION_WONE_INDEX;
    slot->slot_time = slot_time;

    ret = wl1251_cmd_configure(wl, ACX_SLOT, slot, sizeof(*slot));
    if (ret < 0) {
        wl1251_warning("failed to set slot time: %d", ret);
        goto out;
    }

out:
    kfree(slot);
    return ret;
}

int wl1251_acx_group_address_tbl(struct wl1251 *wl)
{
    struct acx_dot11_grp_addr_tbl *acx;
    int ret;

    wl1251_debug(DEBUG_ACX, "acx group address tbl");

    acx = kzalloc(sizeof(*acx), GFP_KERNEL);
    if (!acx) {
        ret = -ENOMEM;
        goto out;
    }

    /* MAC filtering */
    acx->enabled = 0;
    acx->num_groups = 0;
    memset(acx->mac_table, 0, ADDRESS_GROUP_MAX_LEN);

    ret = wl1251_cmd_configure(wl, DOT11_GROUP_ADDRESS_TBL,
                   acx, sizeof(*acx));
    if (ret < 0) {
        wl1251_warning("failed to set group addr table: %d", ret);
        goto out;
    }

out:
    kfree(acx);
    return ret;
}

int wl1251_acx_service_period_timeout(struct wl1251 *wl)
{
    struct acx_rx_timeout *rx_timeout;
    int ret;

    rx_timeout = kzalloc(sizeof(*rx_timeout), GFP_KERNEL);
    if (!rx_timeout) {
        ret = -ENOMEM;
        goto out;
    }

    wl1251_debug(DEBUG_ACX, "acx service period timeout");

    rx_timeout->ps_poll_timeout = RX_TIMEOUT_PS_POLL_DEF;
    rx_timeout->upsd_timeout = RX_TIMEOUT_UPSD_DEF;

    ret = wl1251_cmd_configure(wl, ACX_SERVICE_PERIOD_TIMEOUT,
                   rx_timeout, sizeof(*rx_timeout));
    if (ret < 0) {
        wl1251_warning("failed to set service period timeout: %d",
                   ret);
        goto out;
    }

out:
    kfree(rx_timeout);
    return ret;
}

int wl1251_acx_rts_threshold(struct wl1251 *wl, u16 rts_threshold)
{
    struct acx_rts_threshold *rts;
    int ret;

    wl1251_debug(DEBUG_ACX, "acx rts threshold");

    rts = kzalloc(sizeof(*rts), GFP_KERNEL);
    if (!rts) {
        ret = -ENOMEM;
        goto out;
    }

    rts->threshold = rts_threshold;

    ret = wl1251_cmd_configure(wl, DOT11_RTS_THRESHOLD, rts, sizeof(*rts));
    if (ret < 0) {
        wl1251_warning("failed to set rts threshold: %d", ret);
        goto out;
    }

out:
    kfree(rts);
    return ret;
}

int wl1251_acx_beacon_filter_opt(struct wl1251 *wl, bool enable_filter)
{
    struct acx_beacon_filter_option *beacon_filter;
    int ret;

    wl1251_debug(DEBUG_ACX, "acx beacon filter opt");

    beacon_filter = kzalloc(sizeof(*beacon_filter), GFP_KERNEL);
    if (!beacon_filter) {
        ret = -ENOMEM;
        goto out;
    }

    beacon_filter->enable = enable_filter;
    beacon_filter->max_num_beacons = 0;

    ret = wl1251_cmd_configure(wl, ACX_BEACON_FILTER_OPT,
                   beacon_filter, sizeof(*beacon_filter));
    if (ret < 0) {
        wl1251_warning("failed to set beacon filter opt: %d", ret);
        goto out;
    }

out:
    kfree(beacon_filter);
    return ret;
}

int wl1251_acx_beacon_filter_table(struct wl1251 *wl)
{
    struct acx_beacon_filter_ie_table *ie_table;
    int idx = 0;
    int ret;

    wl1251_debug(DEBUG_ACX, "acx beacon filter table");

    ie_table = kzalloc(sizeof(*ie_table), GFP_KERNEL);
    if (!ie_table) {
        ret = -ENOMEM;
        goto out;
    }

    /* configure default beacon pass-through rules */
    ie_table->num_ie = 1;
    ie_table->table[idx++] = BEACON_FILTER_IE_ID_CHANNEL_SWITCH_ANN;
    ie_table->table[idx++] = BEACON_RULE_PASS_ON_APPEARANCE;

    ret = wl1251_cmd_configure(wl, ACX_BEACON_FILTER_TABLE,
                   ie_table, sizeof(*ie_table));
    if (ret < 0) {
        wl1251_warning("failed to set beacon filter table: %d", ret);
        goto out;
    }

out:
    kfree(ie_table);
    return ret;
}

int wl1251_acx_conn_monit_params(struct wl1251 *wl)
{
    struct acx_conn_monit_params *acx;
    int ret;

    wl1251_debug(DEBUG_ACX, "acx connection monitor parameters");

    acx = kzalloc(sizeof(*acx), GFP_KERNEL);
    if (!acx) {
        ret = -ENOMEM;
        goto out;
    }

    acx->synch_fail_thold = SYNCH_FAIL_DEFAULT_THRESHOLD;
    acx->bss_lose_timeout = NO_BEACON_DEFAULT_TIMEOUT;

    ret = wl1251_cmd_configure(wl, ACX_CONN_MONIT_PARAMS,
                   acx, sizeof(*acx));
    if (ret < 0) {
        wl1251_warning("failed to set connection monitor "
                   "parameters: %d", ret);
        goto out;
    }

out:
    kfree(acx);
    return ret;
}

int wl1251_acx_sg_enable(struct wl1251 *wl)
{
    struct acx_bt_wlan_coex *pta;
    int ret;

    wl1251_debug(DEBUG_ACX, "acx sg enable");

    pta = kzalloc(sizeof(*pta), GFP_KERNEL);
    if (!pta) {
        ret = -ENOMEM;
        goto out;
    }

    pta->enable = SG_ENABLE;

    ret = wl1251_cmd_configure(wl, ACX_SG_ENABLE, pta, sizeof(*pta));
    if (ret < 0) {
        wl1251_warning("failed to set softgemini enable: %d", ret);
        goto out;
    }

out:
    kfree(pta);
    return ret;
}

int wl1251_acx_sg_cfg(struct wl1251 *wl)
{
    struct acx_bt_wlan_coex_param *param;
    int ret;

    wl1251_debug(DEBUG_ACX, "acx sg cfg");

    param = kzalloc(sizeof(*param), GFP_KERNEL);
    if (!param) {
        ret = -ENOMEM;
        goto out;
    }

    /* BT-WLAN coext parameters */
    param->min_rate = RATE_INDEX_24MBPS;
    param->bt_hp_max_time = PTA_BT_HP_MAXTIME_DEF;
    param->wlan_hp_max_time = PTA_WLAN_HP_MAX_TIME_DEF;
    param->sense_disable_timer = PTA_SENSE_DISABLE_TIMER_DEF;
    param->rx_time_bt_hp = PTA_PROTECTIVE_RX_TIME_DEF;
    param->tx_time_bt_hp = PTA_PROTECTIVE_TX_TIME_DEF;
    param->rx_time_bt_hp_fast = PTA_PROTECTIVE_RX_TIME_FAST_DEF;
    param->tx_time_bt_hp_fast = PTA_PROTECTIVE_TX_TIME_FAST_DEF;
    param->wlan_cycle_fast = PTA_CYCLE_TIME_FAST_DEF;
    param->bt_anti_starvation_period = PTA_ANTI_STARVE_PERIOD_DEF;
    param->next_bt_lp_packet = PTA_TIMEOUT_NEXT_BT_LP_PACKET_DEF;
    param->wake_up_beacon = PTA_TIME_BEFORE_BEACON_DEF;
    param->hp_dm_max_guard_time = PTA_HPDM_MAX_TIME_DEF;
    param->next_wlan_packet = PTA_TIME_OUT_NEXT_WLAN_DEF;
    param->antenna_type = PTA_ANTENNA_TYPE_DEF;
    param->signal_type = PTA_SIGNALING_TYPE_DEF;
    param->afh_leverage_on = PTA_AFH_LEVERAGE_ON_DEF;
    param->quiet_cycle_num = PTA_NUMBER_QUIET_CYCLE_DEF;
    param->max_cts = PTA_MAX_NUM_CTS_DEF;
    param->wlan_packets_num = PTA_NUMBER_OF_WLAN_PACKETS_DEF;
    param->bt_packets_num = PTA_NUMBER_OF_BT_PACKETS_DEF;
    param->missed_rx_avalanche = PTA_RX_FOR_AVALANCHE_DEF;
    param->wlan_elp_hp = PTA_ELP_HP_DEF;
    param->bt_anti_starvation_cycles = PTA_ANTI_STARVE_NUM_CYCLE_DEF;
    param->ack_mode_dual_ant = PTA_ACK_MODE_DEF;
    param->pa_sd_enable = PTA_ALLOW_PA_SD_DEF;
    param->pta_auto_mode_enable = PTA_AUTO_MODE_NO_CTS_DEF;
    param->bt_hp_respected_num = PTA_BT_HP_RESPECTED_DEF;

    ret = wl1251_cmd_configure(wl, ACX_SG_CFG, param, sizeof(*param));
    if (ret < 0) {
        wl1251_warning("failed to set sg config: %d", ret);
        goto out;
    }

out:
    kfree(param);
    return ret;
}

int wl1251_acx_cca_threshold(struct wl1251 *wl)
{
    struct acx_energy_detection *detection;
    int ret;

    wl1251_debug(DEBUG_ACX, "acx cca threshold");

    detection = kzalloc(sizeof(*detection), GFP_KERNEL);
    if (!detection) {
        ret = -ENOMEM;
        goto out;
    }

    detection->rx_cca_threshold = CCA_THRSH_DISABLE_ENERGY_D;
    detection->tx_energy_detection = 0;

    ret = wl1251_cmd_configure(wl, ACX_CCA_THRESHOLD,
                   detection, sizeof(*detection));
    if (ret < 0)
        wl1251_warning("failed to set cca threshold: %d", ret);

out:
    kfree(detection);
    return ret;
}

int wl1251_acx_bcn_dtim_options(struct wl1251 *wl)
{
    struct acx_beacon_broadcast *bb;
    int ret;

    wl1251_debug(DEBUG_ACX, "acx bcn dtim options");

    bb = kzalloc(sizeof(*bb), GFP_KERNEL);
    if (!bb) {
        ret = -ENOMEM;
        goto out;
    }

    bb->beacon_rx_timeout = BCN_RX_TIMEOUT_DEF_VALUE;
    bb->broadcast_timeout = BROADCAST_RX_TIMEOUT_DEF_VALUE;
    bb->rx_broadcast_in_ps = RX_BROADCAST_IN_PS_DEF_VALUE;
    bb->ps_poll_threshold = CONSECUTIVE_PS_POLL_FAILURE_DEF;

    ret = wl1251_cmd_configure(wl, ACX_BCN_DTIM_OPTIONS, bb, sizeof(*bb));
    if (ret < 0) {
        wl1251_warning("failed to set rx config: %d", ret);
        goto out;
    }

out:
    kfree(bb);
    return ret;
}

int wl1251_acx_aid(struct wl1251 *wl, u16 aid)
{
    struct acx_aid *acx_aid;
    int ret;

    wl1251_debug(DEBUG_ACX, "acx aid");

    acx_aid = kzalloc(sizeof(*acx_aid), GFP_KERNEL);
    if (!acx_aid) {
        ret = -ENOMEM;
        goto out;
    }

    acx_aid->aid = aid;

    ret = wl1251_cmd_configure(wl, ACX_AID, acx_aid, sizeof(*acx_aid));
    if (ret < 0) {
        wl1251_warning("failed to set aid: %d", ret);
        goto out;
    }

out:
    kfree(acx_aid);
    return ret;
}

int wl1251_acx_event_mbox_mask(struct wl1251 *wl, u32 event_mask)
{
    struct acx_event_mask *mask;
    int ret;

    wl1251_debug(DEBUG_ACX, "acx event mbox mask");

    mask = kzalloc(sizeof(*mask), GFP_KERNEL);
    if (!mask) {
        ret = -ENOMEM;
        goto out;
    }

    /* high event mask is unused */
    mask->high_event_mask = 0xffffffff;

    mask->event_mask = event_mask;

    ret = wl1251_cmd_configure(wl, ACX_EVENT_MBOX_MASK,
                   mask, sizeof(*mask));
    if (ret < 0) {
        wl1251_warning("failed to set acx_event_mbox_mask: %d", ret);
        goto out;
    }

out:
    kfree(mask);
    return ret;
}

int wl1251_acx_low_rssi(struct wl1251 *wl, s8 threshold, u8 weight,
            u8 depth, enum wl1251_acx_low_rssi_type type)
{
    struct acx_low_rssi *rssi;
    int ret;

    wl1251_debug(DEBUG_ACX, "acx low rssi");

    rssi = kzalloc(sizeof(*rssi), GFP_KERNEL);
    if (!rssi)
        return -ENOMEM;

    rssi->threshold = threshold;
    rssi->weight = weight;
    rssi->depth = depth;
    rssi->type = type;

    ret = wl1251_cmd_configure(wl, ACX_LOW_RSSI, rssi, sizeof(*rssi));
    if (ret < 0)
        wl1251_warning("failed to set low rssi threshold: %d", ret);

    kfree(rssi);
    return ret;
}

int wl1251_acx_set_preamble(struct wl1251 *wl, enum acx_preamble_type preamble)
{
    struct acx_preamble *acx;
    int ret;

    wl1251_debug(DEBUG_ACX, "acx_set_preamble");

    acx = kzalloc(sizeof(*acx), GFP_KERNEL);
    if (!acx) {
        ret = -ENOMEM;
        goto out;
    }

    acx->preamble = preamble;

    ret = wl1251_cmd_configure(wl, ACX_PREAMBLE_TYPE, acx, sizeof(*acx));
    if (ret < 0) {
        wl1251_warning("Setting of preamble failed: %d", ret);
        goto out;
    }

out:
    kfree(acx);
    return ret;
}

int wl1251_acx_cts_protect(struct wl1251 *wl,
               enum acx_ctsprotect_type ctsprotect)
{
    struct acx_ctsprotect *acx;
    int ret;

    wl1251_debug(DEBUG_ACX, "acx_set_ctsprotect");

    acx = kzalloc(sizeof(*acx), GFP_KERNEL);
    if (!acx) {
        ret = -ENOMEM;
        goto out;
    }

    acx->ctsprotect = ctsprotect;

    ret = wl1251_cmd_configure(wl, ACX_CTS_PROTECTION, acx, sizeof(*acx));
    if (ret < 0) {
        wl1251_warning("Setting of ctsprotect failed: %d", ret);
        goto out;
    }

out:
    kfree(acx);
    return ret;
}

int wl1251_acx_tsf_info(struct wl1251 *wl, u64 *mactime)
{
    struct acx_tsf_info *tsf_info;
    int ret;

    tsf_info = kzalloc(sizeof(*tsf_info), GFP_KERNEL);
    if (!tsf_info) {
        ret = -ENOMEM;
        goto out;
    }

    ret = wl1251_cmd_interrogate(wl, ACX_TSF_INFO,
                     tsf_info, sizeof(*tsf_info));
    if (ret < 0) {
        wl1251_warning("ACX_FW_REV interrogate failed");
        goto out;
    }

    *mactime = tsf_info->current_tsf_lsb |
        ((u64)tsf_info->current_tsf_msb << 32);

out:
    kfree(tsf_info);
    return ret;
}

int wl1251_acx_statistics(struct wl1251 *wl, struct acx_statistics *stats)
{
    int ret;

    wl1251_debug(DEBUG_ACX, "acx statistics");

    ret = wl1251_cmd_interrogate(wl, ACX_STATISTICS, stats,
                     sizeof(*stats));
    if (ret < 0) {
        wl1251_warning("acx statistics failed: %d", ret);
        return -ENOMEM;
    }

    return 0;
}

int wl1251_acx_rate_policies(struct wl1251 *wl)
{
    struct acx_rate_policy *acx;
    int ret = 0;

    wl1251_debug(DEBUG_ACX, "acx rate policies");

    acx = kzalloc(sizeof(*acx), GFP_KERNEL);

    if (!acx) {
        ret = -ENOMEM;
        goto out;
    }

    /* configure one default (one-size-fits-all) rate class */
    acx->rate_class_cnt = 1;
    acx->rate_class[0].enabled_rates = ACX_RATE_MASK_UNSPECIFIED;
    acx->rate_class[0].short_retry_limit = ACX_RATE_RETRY_LIMIT;
    acx->rate_class[0].long_retry_limit = ACX_RATE_RETRY_LIMIT;
    acx->rate_class[0].aflags = 0;

    ret = wl1251_cmd_configure(wl, ACX_RATE_POLICY, acx, sizeof(*acx));
    if (ret < 0) {
        wl1251_warning("Setting of rate policies failed: %d", ret);
        goto out;
    }

out:
    kfree(acx);
    return ret;
}

int wl1251_acx_mem_cfg(struct wl1251 *wl)
{
    struct wl1251_acx_config_memory *mem_conf;
    int ret, i;

    wl1251_debug(DEBUG_ACX, "acx mem cfg");

    mem_conf = kzalloc(sizeof(*mem_conf), GFP_KERNEL);
    if (!mem_conf) {
        ret = -ENOMEM;
        goto out;
    }

    /* memory config */
    mem_conf->mem_config.num_stations = cpu_to_le16(DEFAULT_NUM_STATIONS);
    mem_conf->mem_config.rx_mem_block_num = 35;
    mem_conf->mem_config.tx_min_mem_block_num = 64;
    mem_conf->mem_config.num_tx_queues = MAX_TX_QUEUES;
    mem_conf->mem_config.host_if_options = HOSTIF_PKT_RING;
    mem_conf->mem_config.num_ssid_profiles = 1;
    mem_conf->mem_config.debug_buffer_size =
        cpu_to_le16(TRACE_BUFFER_MAX_SIZE);

    /* RX queue config */
    mem_conf->rx_queue_config.dma_address = 0;
    mem_conf->rx_queue_config.num_descs = ACX_RX_DESC_DEF;
    mem_conf->rx_queue_config.priority = DEFAULT_RXQ_PRIORITY;
    mem_conf->rx_queue_config.type = DEFAULT_RXQ_TYPE;

    /* TX queue config */
    for (i = 0; i < MAX_TX_QUEUES; i++) {
        mem_conf->tx_queue_config[i].num_descs = ACX_TX_DESC_DEF;
        mem_conf->tx_queue_config[i].attributes = i;
    }

    ret = wl1251_cmd_configure(wl, ACX_MEM_CFG, mem_conf,
                   sizeof(*mem_conf));
    if (ret < 0) {
        wl1251_warning("wl1251 mem config failed: %d", ret);
        goto out;
    }

out:
    kfree(mem_conf);
    return ret;
}

int wl1251_acx_wr_tbtt_and_dtim(struct wl1251 *wl, u16 tbtt, u8 dtim)
{
    struct wl1251_acx_wr_tbtt_and_dtim *acx;
    int ret;

    wl1251_debug(DEBUG_ACX, "acx tbtt and dtim");

    acx = kzalloc(sizeof(*acx), GFP_KERNEL);
    if (!acx) {
        ret = -ENOMEM;
        goto out;
    }

    acx->tbtt = tbtt;
    acx->dtim = dtim;

    ret = wl1251_cmd_configure(wl, ACX_WR_TBTT_AND_DTIM,
                   acx, sizeof(*acx));
    if (ret < 0) {
        wl1251_warning("failed to set tbtt and dtim: %d", ret);
        goto out;
    }

out:
    kfree(acx);
    return ret;
}

int wl1251_acx_bet_enable(struct wl1251 *wl, enum wl1251_acx_bet_mode mode,
              u8 max_consecutive)
{
    struct wl1251_acx_bet_enable *acx;
    int ret;

    wl1251_debug(DEBUG_ACX, "acx bet enable");

    acx = kzalloc(sizeof(*acx), GFP_KERNEL);
    if (!acx) {
        ret = -ENOMEM;
        goto out;
    }

    acx->enable = mode;
    acx->max_consecutive = max_consecutive;

    ret = wl1251_cmd_configure(wl, ACX_BET_ENABLE, acx, sizeof(*acx));
    if (ret < 0) {
        wl1251_warning("wl1251 acx bet enable failed: %d", ret);
        goto out;
    }

out:
    kfree(acx);
    return ret;
}

int wl1251_acx_ac_cfg(struct wl1251 *wl, u8 ac, u8 cw_min, u16 cw_max,
              u8 aifs, u16 txop)
{
    struct wl1251_acx_ac_cfg *acx;
    int ret = 0;

    wl1251_debug(DEBUG_ACX, "acx ac cfg %d cw_ming %d cw_max %d "
             "aifs %d txop %d", ac, cw_min, cw_max, aifs, txop);

    acx = kzalloc(sizeof(*acx), GFP_KERNEL);

    if (!acx) {
        ret = -ENOMEM;
        goto out;
    }

    acx->ac = ac;
    acx->cw_min = cw_min;
    acx->cw_max = cw_max;
    acx->aifsn = aifs;
    acx->txop_limit = txop;

    ret = wl1251_cmd_configure(wl, ACX_AC_CFG, acx, sizeof(*acx));
    if (ret < 0) {
        wl1251_warning("acx ac cfg failed: %d", ret);
        goto out;
    }

out:
    kfree(acx);
    return ret;
}

int wl1251_acx_tid_cfg(struct wl1251 *wl, u8 queue,
               enum wl1251_acx_channel_type type,
               u8 tsid, enum wl1251_acx_ps_scheme ps_scheme,
               enum wl1251_acx_ack_policy ack_policy)
{
    struct wl1251_acx_tid_cfg *acx;
    int ret = 0;

    wl1251_debug(DEBUG_ACX, "acx tid cfg %d type %d tsid %d "
             "ps_scheme %d ack_policy %d", queue, type, tsid,
             ps_scheme, ack_policy);

    acx = kzalloc(sizeof(*acx), GFP_KERNEL);

    if (!acx) {
        ret = -ENOMEM;
        goto out;
    }

    acx->queue = queue;
    acx->type = type;
    acx->tsid = tsid;
    acx->ps_scheme = ps_scheme;
    acx->ack_policy = ack_policy;

    ret = wl1251_cmd_configure(wl, ACX_TID_CFG, acx, sizeof(*acx));
    if (ret < 0) {
        wl1251_warning("acx tid cfg failed: %d", ret);
        goto out;
    }

out:
    kfree(acx);
    return ret;
}