int wl1271_scan_sched_scan_config(struct wl1271 *wl,
struct cfg80211_sched_scan_request *req,
struct ieee80211_sched_scan_ies *ies)
{
struct wl1271_cmd_sched_scan_config *cfg = NULL;
struct conf_sched_scan_settings *c = &wl->conf.sched_scan;
int i, ret;
bool force_passive = !req->n_ssids;
wl1271_debug(DEBUG_CMD, "cmd sched_scan scan config");
cfg = kzalloc(sizeof(*cfg), GFP_KERNEL);
if (!cfg)
return -ENOMEM;
cfg->rssi_threshold = c->rssi_threshold;
cfg->snr_threshold = c->snr_threshold;
cfg->n_probe_reqs = c->num_probe_reqs;
/* cycles set to 0 it means infinite (until manually stopped) */
cfg->cycles = 0;
/* report APs when at least 1 is found */
cfg->report_after = 1;
/* don't stop scanning automatically when something is found */
cfg->terminate = 0;
cfg->tag = WL1271_SCAN_DEFAULT_TAG;
/* don't filter on BSS type */
cfg->bss_type = SCAN_BSS_TYPE_ANY;
/* currently NL80211 supports only a single interval */
for (i = 0; i < SCAN_MAX_CYCLE_INTERVALS; i++)
cfg->intervals[i] = cpu_to_le32(req->interval);
if (!force_passive && req->ssids[0].ssid_len && req->ssids[0].ssid) {
cfg->filter_type = SCAN_SSID_FILTER_SPECIFIC;
cfg->ssid_len = req->ssids[0].ssid_len;
memcpy(cfg->ssid, req->ssids[0].ssid,
req->ssids[0].ssid_len);
} else {
cfg->filter_type = SCAN_SSID_FILTER_ANY;
cfg->ssid_len = 0;
}
if (!wl1271_scan_sched_scan_channels(wl, req, cfg)) {
wl1271_error("scan channel list is empty");
ret = -EINVAL;
goto out;
}
if (!force_passive && cfg->active[0]) {
ret = wl1271_cmd_build_probe_req(wl, req->ssids[0].ssid,
req->ssids[0].ssid_len,
ies->ie[IEEE80211_BAND_2GHZ],
ies->len[IEEE80211_BAND_2GHZ],
IEEE80211_BAND_2GHZ);
if (ret < 0) {
wl1271_error("2.4GHz PROBE request template failed");
goto out;
}
}
if (!force_passive && cfg->active[1]) {
ret = wl1271_cmd_build_probe_req(wl, req->ssids[0].ssid,
req->ssids[0].ssid_len,
ies->ie[IEEE80211_BAND_5GHZ],
ies->len[IEEE80211_BAND_5GHZ],
IEEE80211_BAND_5GHZ);
if (ret < 0) {
wl1271_error("5GHz PROBE request template failed");
goto out;
}
}
wl1271_dump(DEBUG_SCAN, "SCAN_CFG: ", cfg, sizeof(*cfg));
ret = wl1271_cmd_send(wl, CMD_CONNECTION_SCAN_CFG, cfg,
sizeof(*cfg), 0);
if (ret < 0) {
wl1271_error("SCAN configuration failed");
goto out;
}
out:
kfree(cfg);
return ret;
}
static int wl1271_scan_send(struct wl1271 *wl, enum ieee80211_band band,
bool passive, u32 basic_rate)
{
struct wl1271_cmd_scan *cmd;
struct wl1271_cmd_trigger_scan_to *trigger;
int ret;
u16 scan_options = 0;
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
trigger = kzalloc(sizeof(*trigger), GFP_KERNEL);
if (!cmd || !trigger) {
ret = -ENOMEM;
goto out;
}
/* No SSIDs means that we have a forced passive scan */
if (passive || wl->scan.req->n_ssids == 0)
scan_options |= WL1271_SCAN_OPT_PASSIVE;
if (WARN_ON(wl->role_id == WL12XX_INVALID_ROLE_ID)) {
ret = -EINVAL;
goto out;
}
cmd->params.role_id = wl->role_id;
cmd->params.scan_options = cpu_to_le16(scan_options);
cmd->params.n_ch = wl1271_get_scan_channels(wl, wl->scan.req,
cmd->channels,
band, passive);
if (cmd->params.n_ch == 0) {
ret = WL1271_NOTHING_TO_SCAN;
goto out;
}
cmd->params.tx_rate = cpu_to_le32(basic_rate);
cmd->params.n_probe_reqs = wl->conf.scan.num_probe_reqs;
cmd->params.tx_rate = cpu_to_le32(basic_rate);
cmd->params.tid_trigger = 0;
cmd->params.scan_tag = WL1271_SCAN_DEFAULT_TAG;
if (band == IEEE80211_BAND_2GHZ)
cmd->params.band = WL1271_SCAN_BAND_2_4_GHZ;
else
cmd->params.band = WL1271_SCAN_BAND_5_GHZ;
if (wl->scan.ssid_len && wl->scan.ssid) {
cmd->params.ssid_len = wl->scan.ssid_len;
memcpy(cmd->params.ssid, wl->scan.ssid, wl->scan.ssid_len);
}
memcpy(cmd->addr, wl->mac_addr, ETH_ALEN);
ret = wl1271_cmd_build_probe_req(wl, wl->scan.ssid, wl->scan.ssid_len,
wl->scan.req->ie, wl->scan.req->ie_len,
band);
if (ret < 0) {
wl1271_error("PROBE request template failed");
goto out;
}
/* disable the timeout */
trigger->timeout = 0;
ret = wl1271_cmd_send(wl, CMD_TRIGGER_SCAN_TO, trigger,
sizeof(*trigger), 0);
if (ret < 0) {
wl1271_error("trigger scan to failed for hw scan");
goto out;
}
wl1271_dump(DEBUG_SCAN, "SCAN: ", cmd, sizeof(*cmd));
ret = wl1271_cmd_send(wl, CMD_SCAN, cmd, sizeof(*cmd), 0);
if (ret < 0) {
wl1271_error("SCAN failed");
goto out;
}
out:
kfree(cmd);
kfree(trigger);
return ret;
}
static int wl1271_scan_send(struct wl1271 *wl, enum ieee80211_band band,
bool passive, u32 basic_rate)
{
struct wl1271_cmd_scan *cmd;
struct wl1271_cmd_trigger_scan_to *trigger;
int ret;
u16 scan_options = 0;
/* skip active scans if we don't have SSIDs */
if (!passive && wl->scan.req->n_ssids == 0)
return WL1271_NOTHING_TO_SCAN;
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
trigger = kzalloc(sizeof(*trigger), GFP_KERNEL);
if (!cmd || !trigger) {
ret = -ENOMEM;
goto out;
}
/* We always use high priority scans */
scan_options = WL1271_SCAN_OPT_PRIORITY_HIGH;
if (passive)
scan_options |= WL1271_SCAN_OPT_PASSIVE;
cmd->params.scan_options = cpu_to_le16(scan_options);
cmd->params.n_ch = wl1271_get_scan_channels(wl, wl->scan.req,
cmd->channels,
band, passive);
if (cmd->params.n_ch == 0) {
ret = WL1271_NOTHING_TO_SCAN;
goto out;
}
cmd->params.tx_rate = cpu_to_le32(basic_rate);
cmd->params.rx_config_options = cpu_to_le32(CFG_RX_ALL_GOOD);
cmd->params.rx_filter_options =
cpu_to_le32(CFG_RX_PRSP_EN | CFG_RX_MGMT_EN | CFG_RX_BCN_EN);
cmd->params.n_probe_reqs = wl->conf.scan.num_probe_reqs;
cmd->params.tx_rate = cpu_to_le32(basic_rate);
cmd->params.tid_trigger = 0;
cmd->params.scan_tag = WL1271_SCAN_DEFAULT_TAG;
if (band == IEEE80211_BAND_2GHZ)
cmd->params.band = WL1271_SCAN_BAND_2_4_GHZ;
else
cmd->params.band = WL1271_SCAN_BAND_5_GHZ;
if (wl->scan.ssid_len && wl->scan.ssid) {
cmd->params.ssid_len = wl->scan.ssid_len;
memcpy(cmd->params.ssid, wl->scan.ssid, wl->scan.ssid_len);
}
ret = wl1271_cmd_build_probe_req(wl, wl->scan.ssid, wl->scan.ssid_len,
wl->scan.req->ie, wl->scan.req->ie_len,
band);
if (ret < 0) {
wl1271_error("PROBE request template failed");
goto out;
}
/* disable the timeout */
trigger->timeout = 0;
ret = wl1271_cmd_send(wl, CMD_TRIGGER_SCAN_TO, trigger,
sizeof(*trigger), 0);
if (ret < 0) {
wl1271_error("trigger scan to failed for hw scan");
goto out;
}
wl1271_dump(DEBUG_SCAN, "SCAN: ", cmd, sizeof(*cmd));
ret = wl1271_cmd_send(wl, CMD_SCAN, cmd, sizeof(*cmd), 0);
if (ret < 0) {
wl1271_error("SCAN failed");
goto out;
}
out:
kfree(cmd);
kfree(trigger);
return ret;
}
int wl1271_cmd_scan(struct wl1271 *wl, u8 *ssid, size_t len,
u8 active_scan, u8 high_prio, u8 num_channels,
u8 probe_requests)
{
struct wl1271_cmd_trigger_scan_to *trigger = NULL;
struct wl1271_cmd_scan *params = NULL;
int i, ret;
u16 scan_options = 0;
if (wl->scanning)
return -EINVAL;
params = kzalloc(sizeof(*params), GFP_KERNEL);
if (!params)
return -ENOMEM;
params->params.rx_config_options = cpu_to_le32(CFG_RX_ALL_GOOD);
params->params.rx_filter_options =
cpu_to_le32(CFG_RX_PRSP_EN | CFG_RX_MGMT_EN | CFG_RX_BCN_EN);
if (!active_scan)
scan_options |= WL1271_SCAN_OPT_PASSIVE;
if (high_prio)
scan_options |= WL1271_SCAN_OPT_PRIORITY_HIGH;
params->params.scan_options = scan_options;
params->params.num_channels = num_channels;
params->params.num_probe_requests = probe_requests;
params->params.tx_rate = cpu_to_le32(RATE_MASK_2MBPS);
params->params.tid_trigger = 0;
params->params.scan_tag = WL1271_SCAN_DEFAULT_TAG;
for (i = 0; i < num_channels; i++) {
params->channels[i].min_duration =
cpu_to_le32(WL1271_SCAN_CHAN_MIN_DURATION);
params->channels[i].max_duration =
cpu_to_le32(WL1271_SCAN_CHAN_MAX_DURATION);
memset(¶ms->channels[i].bssid_lsb, 0xff, 4);
memset(¶ms->channels[i].bssid_msb, 0xff, 2);
params->channels[i].early_termination = 0;
params->channels[i].tx_power_att = WL1271_SCAN_CURRENT_TX_PWR;
params->channels[i].channel = i + 1;
}
if (len && ssid) {
params->params.ssid_len = len;
memcpy(params->params.ssid, ssid, len);
}
ret = wl1271_cmd_build_probe_req(wl, ssid, len);
if (ret < 0) {
wl1271_error("PROBE request template failed");
goto out;
}
trigger = kzalloc(sizeof(*trigger), GFP_KERNEL);
if (!trigger) {
ret = -ENOMEM;
goto out;
}
trigger->timeout = 0;
ret = wl1271_cmd_send(wl, CMD_TRIGGER_SCAN_TO, trigger,
sizeof(*trigger));
if (ret < 0) {
wl1271_error("trigger scan to failed for hw scan");
goto out;
}
wl1271_dump(DEBUG_SCAN, "SCAN: ", params, sizeof(*params));
wl->scanning = true;
ret = wl1271_cmd_send(wl, CMD_SCAN, params, sizeof(*params));
if (ret < 0) {
wl1271_error("SCAN failed");
goto out;
}
wl1271_spi_mem_read(wl, wl->cmd_box_addr, params, sizeof(*params));
if (params->header.status != CMD_STATUS_SUCCESS) {
wl1271_error("Scan command error: %d",
params->header.status);
wl->scanning = false;
ret = -EIO;
goto out;
}
out:
kfree(params);
return ret;
}
