/*
* This function prepares command for ad-hoc start.
*
* Driver will fill up SSID, BSS mode, IBSS parameters, physical
* parameters, probe delay, and capability information. Firmware
* will fill up beacon period, basic rates and operational rates.
*
* In addition, the following TLVs are added -
* - Channel TLV
* - Vendor specific IE
* - WPA/WPA2 IE
* - HT Capabilities IE
* - HT Information IE
*
* Preparation also includes -
* - Setting command ID and proper size
* - Ensuring correct endian-ness
*/
int
mwifiex_cmd_802_11_ad_hoc_start(struct mwifiex_private *priv,
struct host_cmd_ds_command *cmd,
struct cfg80211_ssid *req_ssid)
{
int rsn_ie_len = 0;
struct mwifiex_adapter *adapter = priv->adapter;
struct host_cmd_ds_802_11_ad_hoc_start *adhoc_start =
&cmd->params.adhoc_start;
struct mwifiex_bssdescriptor *bss_desc;
u32 cmd_append_size = 0;
u32 i;
u16 tmp_cap;
struct mwifiex_ie_types_chan_list_param_set *chan_tlv;
u8 radio_type;
struct mwifiex_ie_types_htcap *ht_cap;
struct mwifiex_ie_types_htinfo *ht_info;
u8 *pos = (u8 *) adhoc_start +
sizeof(struct host_cmd_ds_802_11_ad_hoc_start);
if (!adapter)
return -1;
cmd->command = cpu_to_le16(HostCmd_CMD_802_11_AD_HOC_START);
bss_desc = &priv->curr_bss_params.bss_descriptor;
priv->attempted_bss_desc = bss_desc;
/*
* Fill in the parameters for 2 data structures:
* 1. struct host_cmd_ds_802_11_ad_hoc_start command
* 2. bss_desc
* Driver will fill up SSID, bss_mode,IBSS param, Physical Param,
* probe delay, and Cap info.
* Firmware will fill up beacon period, Basic rates
* and operational rates.
*/
memset(adhoc_start->ssid, 0, IEEE80211_MAX_SSID_LEN);
memcpy(adhoc_start->ssid, req_ssid->ssid, req_ssid->ssid_len);
dev_dbg(adapter->dev, "info: ADHOC_S_CMD: SSID = %s\n",
adhoc_start->ssid);
memset(bss_desc->ssid.ssid, 0, IEEE80211_MAX_SSID_LEN);
memcpy(bss_desc->ssid.ssid, req_ssid->ssid, req_ssid->ssid_len);
bss_desc->ssid.ssid_len = req_ssid->ssid_len;
/* Set the BSS mode */
adhoc_start->bss_mode = HostCmd_BSS_MODE_IBSS;
bss_desc->bss_mode = NL80211_IFTYPE_ADHOC;
adhoc_start->beacon_period = cpu_to_le16(priv->beacon_period);
bss_desc->beacon_period = priv->beacon_period;
/* Set Physical param set */
/* Parameter IE Id */
#define DS_PARA_IE_ID 3
/* Parameter IE length */
#define DS_PARA_IE_LEN 1
adhoc_start->phy_param_set.ds_param_set.element_id = DS_PARA_IE_ID;
adhoc_start->phy_param_set.ds_param_set.len = DS_PARA_IE_LEN;
if (!mwifiex_get_cfp(priv, adapter->adhoc_start_band,
(u16) priv->adhoc_channel, 0)) {
struct mwifiex_chan_freq_power *cfp;
cfp = mwifiex_get_cfp(priv, adapter->adhoc_start_band,
FIRST_VALID_CHANNEL, 0);
if (cfp)
priv->adhoc_channel = (u8) cfp->channel;
}
if (!priv->adhoc_channel) {
dev_err(adapter->dev, "ADHOC_S_CMD: adhoc_channel cannot be 0\n");
return -1;
}
dev_dbg(adapter->dev, "info: ADHOC_S_CMD: creating ADHOC on channel %d\n",
priv->adhoc_channel);
priv->curr_bss_params.bss_descriptor.channel = priv->adhoc_channel;
priv->curr_bss_params.band = adapter->adhoc_start_band;
bss_desc->channel = priv->adhoc_channel;
adhoc_start->phy_param_set.ds_param_set.current_chan =
priv->adhoc_channel;
memcpy(&bss_desc->phy_param_set, &adhoc_start->phy_param_set,
sizeof(union ieee_types_phy_param_set));
/* Set IBSS param set */
/* IBSS parameter IE Id */
#define IBSS_PARA_IE_ID 6
/* IBSS parameter IE length */
#define IBSS_PARA_IE_LEN 2
adhoc_start->ss_param_set.ibss_param_set.element_id = IBSS_PARA_IE_ID;
adhoc_start->ss_param_set.ibss_param_set.len = IBSS_PARA_IE_LEN;
adhoc_start->ss_param_set.ibss_param_set.atim_window
= cpu_to_le16(priv->atim_window);
memcpy(&bss_desc->ss_param_set, &adhoc_start->ss_param_set,
sizeof(union ieee_types_ss_param_set));
/* Set Capability info */
bss_desc->cap_info_bitmap |= WLAN_CAPABILITY_IBSS;
tmp_cap = le16_to_cpu(adhoc_start->cap_info_bitmap);
tmp_cap &= ~WLAN_CAPABILITY_ESS;
tmp_cap |= WLAN_CAPABILITY_IBSS;
/* Set up privacy in bss_desc */
if (priv->sec_info.encryption_mode) {
/* Ad-Hoc capability privacy on */
dev_dbg(adapter->dev,
"info: ADHOC_S_CMD: wep_status set privacy to WEP\n");
bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_8021X_WEP;
tmp_cap |= WLAN_CAPABILITY_PRIVACY;
} else {
dev_dbg(adapter->dev, "info: ADHOC_S_CMD: wep_status NOT set,"
" setting privacy to ACCEPT ALL\n");
bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_ACCEPT_ALL;
}
memset(adhoc_start->data_rate, 0, sizeof(adhoc_start->data_rate));
mwifiex_get_active_data_rates(priv, adhoc_start->data_rate);
if ((adapter->adhoc_start_band & BAND_G) &&
(priv->curr_pkt_filter & HostCmd_ACT_MAC_ADHOC_G_PROTECTION_ON)) {
if (mwifiex_send_cmd_async(priv, HostCmd_CMD_MAC_CONTROL,
HostCmd_ACT_GEN_SET, 0,
&priv->curr_pkt_filter)) {
dev_err(adapter->dev,
"ADHOC_S_CMD: G Protection config failed\n");
return -1;
}
}
/* Find the last non zero */
for (i = 0; i < sizeof(adhoc_start->data_rate); i++)
if (!adhoc_start->data_rate[i])
break;
priv->curr_bss_params.num_of_rates = i;
/* Copy the ad-hoc creating rates into Current BSS rate structure */
memcpy(&priv->curr_bss_params.data_rates,
&adhoc_start->data_rate, priv->curr_bss_params.num_of_rates);
dev_dbg(adapter->dev, "info: ADHOC_S_CMD: rates=%4ph\n",
adhoc_start->data_rate);
dev_dbg(adapter->dev, "info: ADHOC_S_CMD: AD-HOC Start command is ready\n");
if (IS_SUPPORT_MULTI_BANDS(adapter)) {
/* Append a channel TLV */
chan_tlv = (struct mwifiex_ie_types_chan_list_param_set *) pos;
chan_tlv->header.type = cpu_to_le16(TLV_TYPE_CHANLIST);
chan_tlv->header.len =
cpu_to_le16(sizeof(struct mwifiex_chan_scan_param_set));
memset(chan_tlv->chan_scan_param, 0x00,
sizeof(struct mwifiex_chan_scan_param_set));
chan_tlv->chan_scan_param[0].chan_number =
(u8) priv->curr_bss_params.bss_descriptor.channel;
dev_dbg(adapter->dev, "info: ADHOC_S_CMD: TLV Chan = %d\n",
chan_tlv->chan_scan_param[0].chan_number);
chan_tlv->chan_scan_param[0].radio_type
= mwifiex_band_to_radio_type(priv->curr_bss_params.band);
if (adapter->adhoc_start_band & BAND_GN ||
adapter->adhoc_start_band & BAND_AN) {
if (adapter->sec_chan_offset ==
IEEE80211_HT_PARAM_CHA_SEC_ABOVE)
chan_tlv->chan_scan_param[0].radio_type |=
(IEEE80211_HT_PARAM_CHA_SEC_ABOVE << 4);
else if (adapter->sec_chan_offset ==
IEEE80211_HT_PARAM_CHA_SEC_ABOVE)
chan_tlv->chan_scan_param[0].radio_type |=
(IEEE80211_HT_PARAM_CHA_SEC_BELOW << 4);
}
dev_dbg(adapter->dev, "info: ADHOC_S_CMD: TLV Band = %d\n",
chan_tlv->chan_scan_param[0].radio_type);
pos += sizeof(chan_tlv->header) +
sizeof(struct mwifiex_chan_scan_param_set);
cmd_append_size +=
sizeof(chan_tlv->header) +
sizeof(struct mwifiex_chan_scan_param_set);
}
/* Append vendor specific IE TLV */
cmd_append_size += mwifiex_cmd_append_vsie_tlv(priv,
MWIFIEX_VSIE_MASK_ADHOC, &pos);
if (priv->sec_info.wpa_enabled) {
rsn_ie_len = mwifiex_append_rsn_ie_wpa_wpa2(priv, &pos);
if (rsn_ie_len == -1)
return -1;
cmd_append_size += rsn_ie_len;
}
if (adapter->adhoc_11n_enabled) {
/* Fill HT CAPABILITY */
ht_cap = (struct mwifiex_ie_types_htcap *) pos;
memset(ht_cap, 0, sizeof(struct mwifiex_ie_types_htcap));
ht_cap->header.type = cpu_to_le16(WLAN_EID_HT_CAPABILITY);
ht_cap->header.len =
cpu_to_le16(sizeof(struct ieee80211_ht_cap));
radio_type = mwifiex_band_to_radio_type(
priv->adapter->config_bands);
mwifiex_fill_cap_info(priv, radio_type, &ht_cap->ht_cap);
if (adapter->sec_chan_offset ==
IEEE80211_HT_PARAM_CHA_SEC_NONE) {
u16 tmp_ht_cap;
tmp_ht_cap = le16_to_cpu(ht_cap->ht_cap.cap_info);
tmp_ht_cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
tmp_ht_cap &= ~IEEE80211_HT_CAP_SGI_40;
ht_cap->ht_cap.cap_info = cpu_to_le16(tmp_ht_cap);
}
pos += sizeof(struct mwifiex_ie_types_htcap);
cmd_append_size += sizeof(struct mwifiex_ie_types_htcap);
/* Fill HT INFORMATION */
ht_info = (struct mwifiex_ie_types_htinfo *) pos;
memset(ht_info, 0, sizeof(struct mwifiex_ie_types_htinfo));
ht_info->header.type = cpu_to_le16(WLAN_EID_HT_OPERATION);
ht_info->header.len =
cpu_to_le16(sizeof(struct ieee80211_ht_operation));
ht_info->ht_oper.primary_chan =
(u8) priv->curr_bss_params.bss_descriptor.channel;
if (adapter->sec_chan_offset) {
ht_info->ht_oper.ht_param = adapter->sec_chan_offset;
ht_info->ht_oper.ht_param |=
IEEE80211_HT_PARAM_CHAN_WIDTH_ANY;
}
ht_info->ht_oper.operation_mode =
cpu_to_le16(IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT);
ht_info->ht_oper.basic_set[0] = 0xff;
pos += sizeof(struct mwifiex_ie_types_htinfo);
cmd_append_size +=
sizeof(struct mwifiex_ie_types_htinfo);
}
cmd->size =
cpu_to_le16((u16)(sizeof(struct host_cmd_ds_802_11_ad_hoc_start)
+ S_DS_GEN + cmd_append_size));
if (adapter->adhoc_start_band == BAND_B)
tmp_cap &= ~WLAN_CAPABILITY_SHORT_SLOT_TIME;
else
tmp_cap |= WLAN_CAPABILITY_SHORT_SLOT_TIME;
adhoc_start->cap_info_bitmap = cpu_to_le16(tmp_cap);
return 0;
}
int
mwifiex_cmd_802_11_ad_hoc_start(struct mwifiex_private *priv,
struct host_cmd_ds_command *cmd,
struct cfg80211_ssid *req_ssid)
{
int rsn_ie_len = 0;
struct mwifiex_adapter *adapter = priv->adapter;
struct host_cmd_ds_802_11_ad_hoc_start *adhoc_start =
&cmd->params.adhoc_start;
struct mwifiex_bssdescriptor *bss_desc;
u32 cmd_append_size = 0;
u32 i;
u16 tmp_cap;
struct mwifiex_ie_types_chan_list_param_set *chan_tlv;
u8 radio_type;
struct mwifiex_ie_types_htcap *ht_cap;
struct mwifiex_ie_types_htinfo *ht_info;
u8 *pos = (u8 *) adhoc_start +
sizeof(struct host_cmd_ds_802_11_ad_hoc_start);
if (!adapter)
return -1;
cmd->command = cpu_to_le16(HostCmd_CMD_802_11_AD_HOC_START);
bss_desc = &priv->curr_bss_params.bss_descriptor;
priv->attempted_bss_desc = bss_desc;
memset(adhoc_start->ssid, 0, IEEE80211_MAX_SSID_LEN);
memcpy(adhoc_start->ssid, req_ssid->ssid, req_ssid->ssid_len);
dev_dbg(adapter->dev, "info: ADHOC_S_CMD: SSID = %s\n",
adhoc_start->ssid);
memset(bss_desc->ssid.ssid, 0, IEEE80211_MAX_SSID_LEN);
memcpy(bss_desc->ssid.ssid, req_ssid->ssid, req_ssid->ssid_len);
bss_desc->ssid.ssid_len = req_ssid->ssid_len;
adhoc_start->bss_mode = HostCmd_BSS_MODE_IBSS;
bss_desc->bss_mode = NL80211_IFTYPE_ADHOC;
adhoc_start->beacon_period = cpu_to_le16(priv->beacon_period);
bss_desc->beacon_period = priv->beacon_period;
#define DS_PARA_IE_ID 3
#define DS_PARA_IE_LEN 1
adhoc_start->phy_param_set.ds_param_set.element_id = DS_PARA_IE_ID;
adhoc_start->phy_param_set.ds_param_set.len = DS_PARA_IE_LEN;
if (!mwifiex_get_cfp(priv, adapter->adhoc_start_band,
(u16) priv->adhoc_channel, 0)) {
struct mwifiex_chan_freq_power *cfp;
cfp = mwifiex_get_cfp(priv, adapter->adhoc_start_band,
FIRST_VALID_CHANNEL, 0);
if (cfp)
priv->adhoc_channel = (u8) cfp->channel;
}
if (!priv->adhoc_channel) {
dev_err(adapter->dev, "ADHOC_S_CMD: adhoc_channel cannot be 0\n");
return -1;
}
dev_dbg(adapter->dev, "info: ADHOC_S_CMD: creating ADHOC on channel %d\n",
priv->adhoc_channel);
priv->curr_bss_params.bss_descriptor.channel = priv->adhoc_channel;
priv->curr_bss_params.band = adapter->adhoc_start_band;
bss_desc->channel = priv->adhoc_channel;
adhoc_start->phy_param_set.ds_param_set.current_chan =
priv->adhoc_channel;
memcpy(&bss_desc->phy_param_set, &adhoc_start->phy_param_set,
sizeof(union ieee_types_phy_param_set));
#define IBSS_PARA_IE_ID 6
#define IBSS_PARA_IE_LEN 2
adhoc_start->ss_param_set.ibss_param_set.element_id = IBSS_PARA_IE_ID;
adhoc_start->ss_param_set.ibss_param_set.len = IBSS_PARA_IE_LEN;
adhoc_start->ss_param_set.ibss_param_set.atim_window
= cpu_to_le16(priv->atim_window);
memcpy(&bss_desc->ss_param_set, &adhoc_start->ss_param_set,
sizeof(union ieee_types_ss_param_set));
bss_desc->cap_info_bitmap |= WLAN_CAPABILITY_IBSS;
tmp_cap = le16_to_cpu(adhoc_start->cap_info_bitmap);
tmp_cap &= ~WLAN_CAPABILITY_ESS;
tmp_cap |= WLAN_CAPABILITY_IBSS;
if (priv->sec_info.encryption_mode) {
dev_dbg(adapter->dev,
"info: ADHOC_S_CMD: wep_status set privacy to WEP\n");
bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_8021X_WEP;
tmp_cap |= WLAN_CAPABILITY_PRIVACY;
} else {
dev_dbg(adapter->dev, "info: ADHOC_S_CMD: wep_status NOT set,"
" setting privacy to ACCEPT ALL\n");
bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_ACCEPT_ALL;
}
memset(adhoc_start->data_rate, 0, sizeof(adhoc_start->data_rate));
mwifiex_get_active_data_rates(priv, adhoc_start->data_rate);
if ((adapter->adhoc_start_band & BAND_G) &&
(priv->curr_pkt_filter & HostCmd_ACT_MAC_ADHOC_G_PROTECTION_ON)) {
if (mwifiex_send_cmd_async(priv, HostCmd_CMD_MAC_CONTROL,
HostCmd_ACT_GEN_SET, 0,
&priv->curr_pkt_filter)) {
dev_err(adapter->dev,
"ADHOC_S_CMD: G Protection config failed\n");
return -1;
}
}
for (i = 0; i < sizeof(adhoc_start->data_rate); i++)
if (!adhoc_start->data_rate[i])
break;
priv->curr_bss_params.num_of_rates = i;
memcpy(&priv->curr_bss_params.data_rates,
&adhoc_start->data_rate, priv->curr_bss_params.num_of_rates);
dev_dbg(adapter->dev, "info: ADHOC_S_CMD: rates=%02x %02x %02x %02x\n",
adhoc_start->data_rate[0], adhoc_start->data_rate[1],
adhoc_start->data_rate[2], adhoc_start->data_rate[3]);
dev_dbg(adapter->dev, "info: ADHOC_S_CMD: AD-HOC Start command is ready\n");
if (IS_SUPPORT_MULTI_BANDS(adapter)) {
chan_tlv = (struct mwifiex_ie_types_chan_list_param_set *) pos;
chan_tlv->header.type = cpu_to_le16(TLV_TYPE_CHANLIST);
chan_tlv->header.len =
cpu_to_le16(sizeof(struct mwifiex_chan_scan_param_set));
memset(chan_tlv->chan_scan_param, 0x00,
sizeof(struct mwifiex_chan_scan_param_set));
chan_tlv->chan_scan_param[0].chan_number =
(u8) priv->curr_bss_params.bss_descriptor.channel;
dev_dbg(adapter->dev, "info: ADHOC_S_CMD: TLV Chan = %d\n",
chan_tlv->chan_scan_param[0].chan_number);
chan_tlv->chan_scan_param[0].radio_type
= mwifiex_band_to_radio_type(priv->curr_bss_params.band);
if (adapter->adhoc_start_band & BAND_GN ||
adapter->adhoc_start_band & BAND_AN) {
if (adapter->sec_chan_offset ==
IEEE80211_HT_PARAM_CHA_SEC_ABOVE)
chan_tlv->chan_scan_param[0].radio_type |=
(IEEE80211_HT_PARAM_CHA_SEC_ABOVE << 4);
else if (adapter->sec_chan_offset ==
IEEE80211_HT_PARAM_CHA_SEC_ABOVE)
chan_tlv->chan_scan_param[0].radio_type |=
(IEEE80211_HT_PARAM_CHA_SEC_BELOW << 4);
}
dev_dbg(adapter->dev, "info: ADHOC_S_CMD: TLV Band = %d\n",
chan_tlv->chan_scan_param[0].radio_type);
pos += sizeof(chan_tlv->header) +
sizeof(struct mwifiex_chan_scan_param_set);
cmd_append_size +=
sizeof(chan_tlv->header) +
sizeof(struct mwifiex_chan_scan_param_set);
}
cmd_append_size += mwifiex_cmd_append_vsie_tlv(priv,
MWIFIEX_VSIE_MASK_ADHOC, &pos);
if (priv->sec_info.wpa_enabled) {
rsn_ie_len = mwifiex_append_rsn_ie_wpa_wpa2(priv, &pos);
if (rsn_ie_len == -1)
return -1;
cmd_append_size += rsn_ie_len;
}
if (adapter->adhoc_11n_enabled) {
ht_cap = (struct mwifiex_ie_types_htcap *) pos;
memset(ht_cap, 0, sizeof(struct mwifiex_ie_types_htcap));
ht_cap->header.type = cpu_to_le16(WLAN_EID_HT_CAPABILITY);
ht_cap->header.len =
cpu_to_le16(sizeof(struct ieee80211_ht_cap));
radio_type = mwifiex_band_to_radio_type(
priv->adapter->config_bands);
mwifiex_fill_cap_info(priv, radio_type, ht_cap);
pos += sizeof(struct mwifiex_ie_types_htcap);
cmd_append_size += sizeof(struct mwifiex_ie_types_htcap);
ht_info = (struct mwifiex_ie_types_htinfo *) pos;
memset(ht_info, 0, sizeof(struct mwifiex_ie_types_htinfo));
ht_info->header.type = cpu_to_le16(WLAN_EID_HT_INFORMATION);
ht_info->header.len =
cpu_to_le16(sizeof(struct ieee80211_ht_info));
ht_info->ht_info.control_chan =
(u8) priv->curr_bss_params.bss_descriptor.channel;
if (adapter->sec_chan_offset) {
ht_info->ht_info.ht_param = adapter->sec_chan_offset;
ht_info->ht_info.ht_param |=
IEEE80211_HT_PARAM_CHAN_WIDTH_ANY;
}
ht_info->ht_info.operation_mode =
cpu_to_le16(IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT);
ht_info->ht_info.basic_set[0] = 0xff;
pos += sizeof(struct mwifiex_ie_types_htinfo);
cmd_append_size +=
sizeof(struct mwifiex_ie_types_htinfo);
}
cmd->size =
cpu_to_le16((u16)(sizeof(struct host_cmd_ds_802_11_ad_hoc_start)
+ S_DS_GEN + cmd_append_size));
if (adapter->adhoc_start_band == BAND_B)
tmp_cap &= ~WLAN_CAPABILITY_SHORT_SLOT_TIME;
else
tmp_cap |= WLAN_CAPABILITY_SHORT_SLOT_TIME;
adhoc_start->cap_info_bitmap = cpu_to_le16(tmp_cap);
return 0;
}