[deliverable/linux.git] / drivers / net / wireless / mwifiex / uap_cmd.c

/*
 * Marvell Wireless LAN device driver: AP specific command handling
 *
 * Copyright (C) 2012, Marvell International Ltd.
 *
 * This software file (the "File") is distributed by Marvell International
 * Ltd. under the terms of the GNU General Public License Version 2, June 1991
 * (the "License").  You may use, redistribute and/or modify this File in
 * accordance with the terms and conditions of the License, a copy of which
 * is available by writing to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
 * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
 *
 * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
 * ARE EXPRESSLY DISCLAIMED.  The License provides additional details about
 * this warranty disclaimer.
 */

#include "main.h"

/* This function parses security related parameters from cfg80211_ap_settings
 * and sets into FW understandable bss_config structure.
 */
int mwifiex_set_secure_params(struct mwifiex_private *priv,
			      struct mwifiex_uap_bss_param *bss_config,
			      struct cfg80211_ap_settings *params) {
	int i;

	if (!params->privacy) {
		bss_config->protocol = PROTOCOL_NO_SECURITY;
		bss_config->key_mgmt = KEY_MGMT_NONE;
		bss_config->wpa_cfg.length = 0;
		priv->sec_info.wep_enabled = 0;
		priv->sec_info.wpa_enabled = 0;
		priv->sec_info.wpa2_enabled = 0;

		return 0;
	}

	switch (params->auth_type) {
	case NL80211_AUTHTYPE_OPEN_SYSTEM:
		bss_config->auth_mode = WLAN_AUTH_OPEN;
		break;
	case NL80211_AUTHTYPE_SHARED_KEY:
		bss_config->auth_mode = WLAN_AUTH_SHARED_KEY;
		break;
	case NL80211_AUTHTYPE_NETWORK_EAP:
		bss_config->auth_mode = WLAN_AUTH_LEAP;
		break;
	default:
		bss_config->auth_mode = MWIFIEX_AUTH_MODE_AUTO;
		break;
	}

	bss_config->key_mgmt_operation |= KEY_MGMT_ON_HOST;

	for (i = 0; i < params->crypto.n_akm_suites; i++) {
		switch (params->crypto.akm_suites[i]) {
		case WLAN_AKM_SUITE_8021X:
			if (params->crypto.wpa_versions &
			    NL80211_WPA_VERSION_1) {
				bss_config->protocol = PROTOCOL_WPA;
				bss_config->key_mgmt = KEY_MGMT_EAP;
			}
			if (params->crypto.wpa_versions &
			    NL80211_WPA_VERSION_2) {
				bss_config->protocol = PROTOCOL_WPA2;
				bss_config->key_mgmt = KEY_MGMT_EAP;
			}
			break;
		case WLAN_AKM_SUITE_PSK:
			if (params->crypto.wpa_versions &
			    NL80211_WPA_VERSION_1) {
				bss_config->protocol = PROTOCOL_WPA;
				bss_config->key_mgmt = KEY_MGMT_PSK;
			}
			if (params->crypto.wpa_versions &
			    NL80211_WPA_VERSION_2) {
				bss_config->protocol = PROTOCOL_WPA2;
				bss_config->key_mgmt = KEY_MGMT_PSK;
			}
			break;
		default:
			break;
		}
	}
	for (i = 0; i < params->crypto.n_ciphers_pairwise; i++) {
		switch (params->crypto.ciphers_pairwise[i]) {
		case WLAN_CIPHER_SUITE_WEP40:
		case WLAN_CIPHER_SUITE_WEP104:
			break;
		case WLAN_CIPHER_SUITE_TKIP:
			bss_config->wpa_cfg.pairwise_cipher_wpa = CIPHER_TKIP;
			break;
		case WLAN_CIPHER_SUITE_CCMP:
			bss_config->wpa_cfg.pairwise_cipher_wpa2 =
								CIPHER_AES_CCMP;
		default:
			break;
		}
	}

	switch (params->crypto.cipher_group) {
	case WLAN_CIPHER_SUITE_WEP40:
	case WLAN_CIPHER_SUITE_WEP104:
		break;
	case WLAN_CIPHER_SUITE_TKIP:
		bss_config->wpa_cfg.group_cipher = CIPHER_TKIP;
		break;
	case WLAN_CIPHER_SUITE_CCMP:
		bss_config->wpa_cfg.group_cipher = CIPHER_AES_CCMP;
		break;
	default:
		break;
	}

	return 0;
}

/* This function updates 11n related parameters from IE and sets them into
 * bss_config structure.
 */
void
mwifiex_set_ht_params(struct mwifiex_private *priv,
		      struct mwifiex_uap_bss_param *bss_cfg,
		      struct cfg80211_ap_settings *params)
{
	const u8 *ht_ie;

	if (!ISSUPP_11NENABLED(priv->adapter->fw_cap_info))
		return;

	ht_ie = cfg80211_find_ie(WLAN_EID_HT_CAPABILITY, params->beacon.tail,
				 params->beacon.tail_len);
	if (ht_ie) {
		memcpy(&bss_cfg->ht_cap, ht_ie + 2,
		       sizeof(struct ieee80211_ht_cap));
	} else {
		memset(&bss_cfg->ht_cap , 0, sizeof(struct ieee80211_ht_cap));
		bss_cfg->ht_cap.cap_info = cpu_to_le16(MWIFIEX_DEF_HT_CAP);
		bss_cfg->ht_cap.ampdu_params_info = MWIFIEX_DEF_AMPDU;
	}

	return;
}

/* This function initializes some of mwifiex_uap_bss_param variables.
 * This helps FW in ignoring invalid values. These values may or may not
 * be get updated to valid ones at later stage.
 */
void mwifiex_set_sys_config_invalid_data(struct mwifiex_uap_bss_param *config)
{
	config->bcast_ssid_ctl = 0x7F;
	config->radio_ctl = 0x7F;
	config->dtim_period = 0x7F;
	config->beacon_period = 0x7FFF;
	config->auth_mode = 0x7F;
	config->rts_threshold = 0x7FFF;
	config->frag_threshold = 0x7FFF;
	config->retry_limit = 0x7F;
}

/* This function parses BSS related parameters from structure
 * and prepares TLVs. These TLVs are appended to command buffer.
*/
static int
mwifiex_uap_bss_param_prepare(u8 *tlv, void *cmd_buf, u16 *param_size)
{
	struct host_cmd_tlv_dtim_period *dtim_period;
	struct host_cmd_tlv_beacon_period *beacon_period;
	struct host_cmd_tlv_ssid *ssid;
	struct host_cmd_tlv_bcast_ssid *bcast_ssid;
	struct host_cmd_tlv_channel_band *chan_band;
	struct host_cmd_tlv_frag_threshold *frag_threshold;
	struct host_cmd_tlv_rts_threshold *rts_threshold;
	struct host_cmd_tlv_retry_limit *retry_limit;
	struct host_cmd_tlv_pwk_cipher *pwk_cipher;
	struct host_cmd_tlv_gwk_cipher *gwk_cipher;
	struct host_cmd_tlv_encrypt_protocol *encrypt_protocol;
	struct host_cmd_tlv_auth_type *auth_type;
	struct host_cmd_tlv_passphrase *passphrase;
	struct host_cmd_tlv_akmp *tlv_akmp;
	struct mwifiex_ie_types_htcap *htcap;
	struct mwifiex_uap_bss_param *bss_cfg = cmd_buf;
	u16 cmd_size = *param_size;

	if (bss_cfg->ssid.ssid_len) {
		ssid = (struct host_cmd_tlv_ssid *)tlv;
		ssid->tlv.type = cpu_to_le16(TLV_TYPE_UAP_SSID);
		ssid->tlv.len = cpu_to_le16((u16)bss_cfg->ssid.ssid_len);
		memcpy(ssid->ssid, bss_cfg->ssid.ssid, bss_cfg->ssid.ssid_len);
		cmd_size += sizeof(struct host_cmd_tlv) +
			    bss_cfg->ssid.ssid_len;
		tlv += sizeof(struct host_cmd_tlv) + bss_cfg->ssid.ssid_len;

		bcast_ssid = (struct host_cmd_tlv_bcast_ssid *)tlv;
		bcast_ssid->tlv.type = cpu_to_le16(TLV_TYPE_UAP_BCAST_SSID);
		bcast_ssid->tlv.len =
				cpu_to_le16(sizeof(bcast_ssid->bcast_ctl));
		bcast_ssid->bcast_ctl = bss_cfg->bcast_ssid_ctl;
		cmd_size += sizeof(struct host_cmd_tlv_bcast_ssid);
		tlv += sizeof(struct host_cmd_tlv_bcast_ssid);
	}
	if (bss_cfg->channel && bss_cfg->channel <= MAX_CHANNEL_BAND_BG) {
		chan_band = (struct host_cmd_tlv_channel_band *)tlv;
		chan_band->tlv.type = cpu_to_le16(TLV_TYPE_CHANNELBANDLIST);
		chan_band->tlv.len =
			cpu_to_le16(sizeof(struct host_cmd_tlv_channel_band) -
				    sizeof(struct host_cmd_tlv));
		chan_band->band_config = bss_cfg->band_cfg;
		chan_band->channel = bss_cfg->channel;
		cmd_size += sizeof(struct host_cmd_tlv_channel_band);
		tlv += sizeof(struct host_cmd_tlv_channel_band);
	}
	if (bss_cfg->beacon_period >= MIN_BEACON_PERIOD &&
	    bss_cfg->beacon_period <= MAX_BEACON_PERIOD) {
		beacon_period = (struct host_cmd_tlv_beacon_period *)tlv;
		beacon_period->tlv.type =
					cpu_to_le16(TLV_TYPE_UAP_BEACON_PERIOD);
		beacon_period->tlv.len =
			cpu_to_le16(sizeof(struct host_cmd_tlv_beacon_period) -
				    sizeof(struct host_cmd_tlv));
		beacon_period->period = cpu_to_le16(bss_cfg->beacon_period);
		cmd_size += sizeof(struct host_cmd_tlv_beacon_period);
		tlv += sizeof(struct host_cmd_tlv_beacon_period);
	}
	if (bss_cfg->dtim_period >= MIN_DTIM_PERIOD &&
	    bss_cfg->dtim_period <= MAX_DTIM_PERIOD) {
		dtim_period = (struct host_cmd_tlv_dtim_period *)tlv;
		dtim_period->tlv.type = cpu_to_le16(TLV_TYPE_UAP_DTIM_PERIOD);
		dtim_period->tlv.len =
			cpu_to_le16(sizeof(struct host_cmd_tlv_dtim_period) -
				    sizeof(struct host_cmd_tlv));
		dtim_period->period = bss_cfg->dtim_period;
		cmd_size += sizeof(struct host_cmd_tlv_dtim_period);
		tlv += sizeof(struct host_cmd_tlv_dtim_period);
	}
	if (bss_cfg->rts_threshold <= MWIFIEX_RTS_MAX_VALUE) {
		rts_threshold = (struct host_cmd_tlv_rts_threshold *)tlv;
		rts_threshold->tlv.type =
					cpu_to_le16(TLV_TYPE_UAP_RTS_THRESHOLD);
		rts_threshold->tlv.len =
			cpu_to_le16(sizeof(struct host_cmd_tlv_rts_threshold) -
				    sizeof(struct host_cmd_tlv));
		rts_threshold->rts_thr = cpu_to_le16(bss_cfg->rts_threshold);
		cmd_size += sizeof(struct host_cmd_tlv_frag_threshold);
		tlv += sizeof(struct host_cmd_tlv_frag_threshold);
	}
	if ((bss_cfg->frag_threshold >= MWIFIEX_FRAG_MIN_VALUE) &&
	    (bss_cfg->frag_threshold <= MWIFIEX_FRAG_MAX_VALUE)) {
		frag_threshold = (struct host_cmd_tlv_frag_threshold *)tlv;
		frag_threshold->tlv.type =
				cpu_to_le16(TLV_TYPE_UAP_FRAG_THRESHOLD);
		frag_threshold->tlv.len =
			cpu_to_le16(sizeof(struct host_cmd_tlv_frag_threshold) -
				    sizeof(struct host_cmd_tlv));
		frag_threshold->frag_thr = cpu_to_le16(bss_cfg->frag_threshold);
		cmd_size += sizeof(struct host_cmd_tlv_frag_threshold);
		tlv += sizeof(struct host_cmd_tlv_frag_threshold);
	}
	if (bss_cfg->retry_limit <= MWIFIEX_RETRY_LIMIT) {
		retry_limit = (struct host_cmd_tlv_retry_limit *)tlv;
		retry_limit->tlv.type = cpu_to_le16(TLV_TYPE_UAP_RETRY_LIMIT);
		retry_limit->tlv.len =
			cpu_to_le16(sizeof(struct host_cmd_tlv_retry_limit) -
				    sizeof(struct host_cmd_tlv));
		retry_limit->limit = (u8)bss_cfg->retry_limit;
		cmd_size += sizeof(struct host_cmd_tlv_retry_limit);
		tlv += sizeof(struct host_cmd_tlv_retry_limit);
	}
	if ((bss_cfg->protocol & PROTOCOL_WPA) ||
	    (bss_cfg->protocol & PROTOCOL_WPA2) ||
	    (bss_cfg->protocol & PROTOCOL_EAP)) {
		tlv_akmp = (struct host_cmd_tlv_akmp *)tlv;
		tlv_akmp->tlv.type = cpu_to_le16(TLV_TYPE_UAP_AKMP);
		tlv_akmp->tlv.len =
		    cpu_to_le16(sizeof(struct host_cmd_tlv_akmp) -
				sizeof(struct host_cmd_tlv));
		tlv_akmp->key_mgmt_operation =
			cpu_to_le16(bss_cfg->key_mgmt_operation);
		tlv_akmp->key_mgmt = cpu_to_le16(bss_cfg->key_mgmt);
		cmd_size += sizeof(struct host_cmd_tlv_akmp);
		tlv += sizeof(struct host_cmd_tlv_akmp);

		if (bss_cfg->wpa_cfg.pairwise_cipher_wpa &
				VALID_CIPHER_BITMAP) {
			pwk_cipher = (struct host_cmd_tlv_pwk_cipher *)tlv;
			pwk_cipher->tlv.type =
				cpu_to_le16(TLV_TYPE_PWK_CIPHER);
			pwk_cipher->tlv.len = cpu_to_le16(
				sizeof(struct host_cmd_tlv_pwk_cipher) -
				sizeof(struct host_cmd_tlv));
			pwk_cipher->proto = cpu_to_le16(PROTOCOL_WPA);
			pwk_cipher->cipher =
				bss_cfg->wpa_cfg.pairwise_cipher_wpa;
			cmd_size += sizeof(struct host_cmd_tlv_pwk_cipher);
			tlv += sizeof(struct host_cmd_tlv_pwk_cipher);
		}
		if (bss_cfg->wpa_cfg.pairwise_cipher_wpa2 &
				VALID_CIPHER_BITMAP) {
			pwk_cipher = (struct host_cmd_tlv_pwk_cipher *)tlv;
			pwk_cipher->tlv.type = cpu_to_le16(TLV_TYPE_PWK_CIPHER);
			pwk_cipher->tlv.len = cpu_to_le16(
				sizeof(struct host_cmd_tlv_pwk_cipher) -
				sizeof(struct host_cmd_tlv));
			pwk_cipher->proto = cpu_to_le16(PROTOCOL_WPA2);
			pwk_cipher->cipher =
				bss_cfg->wpa_cfg.pairwise_cipher_wpa2;
			cmd_size += sizeof(struct host_cmd_tlv_pwk_cipher);
			tlv += sizeof(struct host_cmd_tlv_pwk_cipher);
		}
		if (bss_cfg->wpa_cfg.group_cipher & VALID_CIPHER_BITMAP) {
			gwk_cipher = (struct host_cmd_tlv_gwk_cipher *)tlv;
			gwk_cipher->tlv.type = cpu_to_le16(TLV_TYPE_GWK_CIPHER);
			gwk_cipher->tlv.len = cpu_to_le16(
				sizeof(struct host_cmd_tlv_gwk_cipher) -
				sizeof(struct host_cmd_tlv));
			gwk_cipher->cipher = bss_cfg->wpa_cfg.group_cipher;
			cmd_size += sizeof(struct host_cmd_tlv_gwk_cipher);
			tlv += sizeof(struct host_cmd_tlv_gwk_cipher);
		}
		if (bss_cfg->wpa_cfg.length) {
			passphrase = (struct host_cmd_tlv_passphrase *)tlv;
			passphrase->tlv.type =
				cpu_to_le16(TLV_TYPE_UAP_WPA_PASSPHRASE);
			passphrase->tlv.len =
				cpu_to_le16(bss_cfg->wpa_cfg.length);
			memcpy(passphrase->passphrase,
			       bss_cfg->wpa_cfg.passphrase,
			       bss_cfg->wpa_cfg.length);
			cmd_size += sizeof(struct host_cmd_tlv) +
				    bss_cfg->wpa_cfg.length;
			tlv += sizeof(struct host_cmd_tlv) +
			       bss_cfg->wpa_cfg.length;
		}
	}
	if ((bss_cfg->auth_mode <= WLAN_AUTH_SHARED_KEY) ||
	    (bss_cfg->auth_mode == MWIFIEX_AUTH_MODE_AUTO)) {
		auth_type = (struct host_cmd_tlv_auth_type *)tlv;
		auth_type->tlv.type = cpu_to_le16(TLV_TYPE_AUTH_TYPE);
		auth_type->tlv.len =
			cpu_to_le16(sizeof(struct host_cmd_tlv_auth_type) -
			sizeof(struct host_cmd_tlv));
		auth_type->auth_type = (u8)bss_cfg->auth_mode;
		cmd_size += sizeof(struct host_cmd_tlv_auth_type);
		tlv += sizeof(struct host_cmd_tlv_auth_type);
	}
	if (bss_cfg->protocol) {
		encrypt_protocol = (struct host_cmd_tlv_encrypt_protocol *)tlv;
		encrypt_protocol->tlv.type =
			cpu_to_le16(TLV_TYPE_UAP_ENCRY_PROTOCOL);
		encrypt_protocol->tlv.len =
			cpu_to_le16(sizeof(struct host_cmd_tlv_encrypt_protocol)
			- sizeof(struct host_cmd_tlv));
		encrypt_protocol->proto = cpu_to_le16(bss_cfg->protocol);
		cmd_size += sizeof(struct host_cmd_tlv_encrypt_protocol);
		tlv += sizeof(struct host_cmd_tlv_encrypt_protocol);
	}

	if (bss_cfg->ht_cap.cap_info) {
		htcap = (struct mwifiex_ie_types_htcap *)tlv;
		htcap->header.type = cpu_to_le16(WLAN_EID_HT_CAPABILITY);
		htcap->header.len =
				cpu_to_le16(sizeof(struct ieee80211_ht_cap));
		htcap->ht_cap.cap_info = bss_cfg->ht_cap.cap_info;
		htcap->ht_cap.ampdu_params_info =
					     bss_cfg->ht_cap.ampdu_params_info;
		memcpy(&htcap->ht_cap.mcs, &bss_cfg->ht_cap.mcs,
		       sizeof(struct ieee80211_mcs_info));
		htcap->ht_cap.extended_ht_cap_info =
					bss_cfg->ht_cap.extended_ht_cap_info;
		htcap->ht_cap.tx_BF_cap_info = bss_cfg->ht_cap.tx_BF_cap_info;
		htcap->ht_cap.antenna_selection_info =
					bss_cfg->ht_cap.antenna_selection_info;
		cmd_size += sizeof(struct mwifiex_ie_types_htcap);
		tlv += sizeof(struct mwifiex_ie_types_htcap);
	}

	*param_size = cmd_size;

	return 0;
}

/* This function parses custom IEs from IE list and prepares command buffer */
static int mwifiex_uap_custom_ie_prepare(u8 *tlv, void *cmd_buf, u16 *ie_size)
{
	struct mwifiex_ie_list *ap_ie = cmd_buf;
	struct host_cmd_tlv *tlv_ie = (struct host_cmd_tlv *)tlv;

	if (!ap_ie || !ap_ie->len || !ap_ie->ie_list)
		return -1;

	*ie_size += le16_to_cpu(ap_ie->len) + sizeof(struct host_cmd_tlv);

	tlv_ie->type = cpu_to_le16(TLV_TYPE_MGMT_IE);
	tlv_ie->len = ap_ie->len;
	tlv += sizeof(struct host_cmd_tlv);

	memcpy(tlv, ap_ie->ie_list, le16_to_cpu(ap_ie->len));

	return 0;
}

/* Parse AP config structure and prepare TLV based command structure
 * to be sent to FW for uAP configuration
 */
static int
mwifiex_cmd_uap_sys_config(struct host_cmd_ds_command *cmd, u16 cmd_action,
			   u32 type, void *cmd_buf)
{
	u8 *tlv;
	u16 cmd_size, param_size, ie_size;
	struct host_cmd_ds_sys_config *sys_cfg;

	cmd->command = cpu_to_le16(HostCmd_CMD_UAP_SYS_CONFIG);
	cmd_size = (u16)(sizeof(struct host_cmd_ds_sys_config) + S_DS_GEN);
	sys_cfg = (struct host_cmd_ds_sys_config *)&cmd->params.uap_sys_config;
	sys_cfg->action = cpu_to_le16(cmd_action);
	tlv = sys_cfg->tlv;

	switch (type) {
	case UAP_BSS_PARAMS_I:
		param_size = cmd_size;
		if (mwifiex_uap_bss_param_prepare(tlv, cmd_buf, &param_size))
			return -1;
		cmd->size = cpu_to_le16(param_size);
		break;
	case UAP_CUSTOM_IE_I:
		ie_size = cmd_size;
		if (mwifiex_uap_custom_ie_prepare(tlv, cmd_buf, &ie_size))
			return -1;
		cmd->size = cpu_to_le16(ie_size);
		break;
	default:
		return -1;
	}

	return 0;
}

/* This function prepares the AP specific commands before sending them
 * to the firmware.
 * This is a generic function which calls specific command preparation
 * routines based upon the command number.
 */
int mwifiex_uap_prepare_cmd(struct mwifiex_private *priv, u16 cmd_no,
			    u16 cmd_action, u32 type,
			    void *data_buf, void *cmd_buf)
{
	struct host_cmd_ds_command *cmd = cmd_buf;

	switch (cmd_no) {
	case HostCmd_CMD_UAP_SYS_CONFIG:
		if (mwifiex_cmd_uap_sys_config(cmd, cmd_action, type, data_buf))
			return -1;
		break;
	case HostCmd_CMD_UAP_BSS_START:
	case HostCmd_CMD_UAP_BSS_STOP:
		cmd->command = cpu_to_le16(cmd_no);
		cmd->size = cpu_to_le16(S_DS_GEN);
		break;
	default:
		dev_err(priv->adapter->dev,
			"PREP_CMD: unknown cmd %#x\n", cmd_no);
		return -1;
	}

	return 0;
}
Commit	Line	Data
40d07030 AP	1	/*
	2	* Marvell Wireless LAN device driver: AP specific command handling
	3	*
	4	* Copyright (C) 2012, Marvell International Ltd.
	5	*
	6	* This software file (the "File") is distributed by Marvell International
	7	* Ltd. under the terms of the GNU General Public License Version 2, June 1991
	8	* (the "License"). You may use, redistribute and/or modify this File in
	9	* accordance with the terms and conditions of the License, a copy of which
	10	* is available by writing to the Free Software Foundation, Inc.,
	11	* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
	12	* worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
	13	*
	14	* THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
	15	* IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
	16	* ARE EXPRESSLY DISCLAIMED. The License provides additional details about
	17	* this warranty disclaimer.
	18	*/
	19
	20	#include "main.h"
	21
f752dcd5 AP	22	/* This function parses security related parameters from cfg80211_ap_settings
	23	* and sets into FW understandable bss_config structure.
	24	*/
	25	int mwifiex_set_secure_params(struct mwifiex_private *priv,
	26	struct mwifiex_uap_bss_param *bss_config,
	27	struct cfg80211_ap_settings *params) {
	28	int i;
	29
6ddcd464 AP	30	if (!params->privacy) {
	31	bss_config->protocol = PROTOCOL_NO_SECURITY;
	32	bss_config->key_mgmt = KEY_MGMT_NONE;
	33	bss_config->wpa_cfg.length = 0;
	34	priv->sec_info.wep_enabled = 0;
	35	priv->sec_info.wpa_enabled = 0;
	36	priv->sec_info.wpa2_enabled = 0;
	37
	38	return 0;
	39	}
	40
f752dcd5 AP	41	switch (params->auth_type) {
	42	case NL80211_AUTHTYPE_OPEN_SYSTEM:
	43	bss_config->auth_mode = WLAN_AUTH_OPEN;
	44	break;
	45	case NL80211_AUTHTYPE_SHARED_KEY:
	46	bss_config->auth_mode = WLAN_AUTH_SHARED_KEY;
	47	break;
	48	case NL80211_AUTHTYPE_NETWORK_EAP:
	49	bss_config->auth_mode = WLAN_AUTH_LEAP;
	50	break;
	51	default:
	52	bss_config->auth_mode = MWIFIEX_AUTH_MODE_AUTO;
	53	break;
	54	}
	55
	56	bss_config->key_mgmt_operation \|= KEY_MGMT_ON_HOST;
	57
	58	for (i = 0; i < params->crypto.n_akm_suites; i++) {
	59	switch (params->crypto.akm_suites[i]) {
	60	case WLAN_AKM_SUITE_8021X:
	61	if (params->crypto.wpa_versions &
	62	NL80211_WPA_VERSION_1) {
	63	bss_config->protocol = PROTOCOL_WPA;
	64	bss_config->key_mgmt = KEY_MGMT_EAP;
	65	}
	66	if (params->crypto.wpa_versions &
	67	NL80211_WPA_VERSION_2) {
	68	bss_config->protocol = PROTOCOL_WPA2;
	69	bss_config->key_mgmt = KEY_MGMT_EAP;
	70	}
	71	break;
	72	case WLAN_AKM_SUITE_PSK:
	73	if (params->crypto.wpa_versions &
	74	NL80211_WPA_VERSION_1) {
	75	bss_config->protocol = PROTOCOL_WPA;
	76	bss_config->key_mgmt = KEY_MGMT_PSK;
	77	}
	78	if (params->crypto.wpa_versions &
	79	NL80211_WPA_VERSION_2) {
	80	bss_config->protocol = PROTOCOL_WPA2;
	81	bss_config->key_mgmt = KEY_MGMT_PSK;
	82	}
	83	break;
	84	default:
	85	break;
	86	}
	87	}
	88	for (i = 0; i < params->crypto.n_ciphers_pairwise; i++) {
	89	switch (params->crypto.ciphers_pairwise[i]) {
	90	case WLAN_CIPHER_SUITE_WEP40:
	91	case WLAN_CIPHER_SUITE_WEP104:
	92	break;
	93	case WLAN_CIPHER_SUITE_TKIP:
	94	bss_config->wpa_cfg.pairwise_cipher_wpa = CIPHER_TKIP;
	95	break;
	96	case WLAN_CIPHER_SUITE_CCMP:
	97	bss_config->wpa_cfg.pairwise_cipher_wpa2 =
	98	CIPHER_AES_CCMP;
	99	default:
	100	break;
	101	}
	102	}
	103
	104	switch (params->crypto.cipher_group) {
105	case WLAN_CIPHER_SUITE_WEP40:
106	case WLAN_CIPHER_SUITE_WEP104:
107	break;
108	case WLAN_CIPHER_SUITE_TKIP:
109	bss_config->wpa_cfg.group_cipher = CIPHER_TKIP;
110	break;
111	case WLAN_CIPHER_SUITE_CCMP:
112	bss_config->wpa_cfg.group_cipher = CIPHER_AES_CCMP;
113	break;
114	default:
115	break;
116	}
117
118	return 0;
119	}
120
22281256 AP	121	/* This function updates 11n related parameters from IE and sets them into
	122	* bss_config structure.
	123	*/
	124	void
	125	mwifiex_set_ht_params(struct mwifiex_private *priv,
	126	struct mwifiex_uap_bss_param *bss_cfg,
	127	struct cfg80211_ap_settings *params)
	128	{
	129	const u8 *ht_ie;
	130
	131	if (!ISSUPP_11NENABLED(priv->adapter->fw_cap_info))
	132	return;
	133
	134	ht_ie = cfg80211_find_ie(WLAN_EID_HT_CAPABILITY, params->beacon.tail,
	135	params->beacon.tail_len);
	136	if (ht_ie) {
	137	memcpy(&bss_cfg->ht_cap, ht_ie + 2,
	138	sizeof(struct ieee80211_ht_cap));
	139	} else {
	140	memset(&bss_cfg->ht_cap , 0, sizeof(struct ieee80211_ht_cap));
	141	bss_cfg->ht_cap.cap_info = cpu_to_le16(MWIFIEX_DEF_HT_CAP);
	142	bss_cfg->ht_cap.ampdu_params_info = MWIFIEX_DEF_AMPDU;
	143	}
	144
	145	return;
	146	}
	147
9b930eae AP	148	/* This function initializes some of mwifiex_uap_bss_param variables.
	149	* This helps FW in ignoring invalid values. These values may or may not
	150	* be get updated to valid ones at later stage.
	151	*/
	152	void mwifiex_set_sys_config_invalid_data(struct mwifiex_uap_bss_param *config)
	153	{
f752dcd5 AP	154	config->bcast_ssid_ctl = 0x7F;
	155	config->radio_ctl = 0x7F;
	156	config->dtim_period = 0x7F;
	157	config->beacon_period = 0x7FFF;
	158	config->auth_mode = 0x7F;
9b930eae AP	159	config->rts_threshold = 0x7FFF;
	160	config->frag_threshold = 0x7FFF;
	161	config->retry_limit = 0x7F;
	162	}
	163
e76268da AP	164	/* This function parses BSS related parameters from structure
	165	* and prepares TLVs. These TLVs are appended to command buffer.
	166	*/
	167	static int
	168	mwifiex_uap_bss_param_prepare(u8 tlv, void cmd_buf, u16 *param_size)
4db16a18	169	{
12190c5d AP	170	struct host_cmd_tlv_dtim_period *dtim_period;
	171	struct host_cmd_tlv_beacon_period *beacon_period;
	172	struct host_cmd_tlv_ssid *ssid;
7a1c9934	173	struct host_cmd_tlv_bcast_ssid *bcast_ssid;
4db16a18	174	struct host_cmd_tlv_channel_band *chan_band;
9b930eae AP	175	struct host_cmd_tlv_frag_threshold *frag_threshold;
	176	struct host_cmd_tlv_rts_threshold *rts_threshold;
	177	struct host_cmd_tlv_retry_limit *retry_limit;
f752dcd5 AP	178	struct host_cmd_tlv_pwk_cipher *pwk_cipher;
	179	struct host_cmd_tlv_gwk_cipher *gwk_cipher;
	180	struct host_cmd_tlv_encrypt_protocol *encrypt_protocol;
	181	struct host_cmd_tlv_auth_type *auth_type;
	182	struct host_cmd_tlv_passphrase *passphrase;
	183	struct host_cmd_tlv_akmp *tlv_akmp;
22281256	184	struct mwifiex_ie_types_htcap *htcap;
4db16a18	185	struct mwifiex_uap_bss_param *bss_cfg = cmd_buf;
e76268da	186	u16 cmd_size = *param_size;
4db16a18	187
12190c5d AP	188	if (bss_cfg->ssid.ssid_len) {
	189	ssid = (struct host_cmd_tlv_ssid *)tlv;
	190	ssid->tlv.type = cpu_to_le16(TLV_TYPE_UAP_SSID);
	191	ssid->tlv.len = cpu_to_le16((u16)bss_cfg->ssid.ssid_len);
	192	memcpy(ssid->ssid, bss_cfg->ssid.ssid, bss_cfg->ssid.ssid_len);
	193	cmd_size += sizeof(struct host_cmd_tlv) +
	194	bss_cfg->ssid.ssid_len;
	195	tlv += sizeof(struct host_cmd_tlv) + bss_cfg->ssid.ssid_len;
7a1c9934 AP	196
	197	bcast_ssid = (struct host_cmd_tlv_bcast_ssid *)tlv;
	198	bcast_ssid->tlv.type = cpu_to_le16(TLV_TYPE_UAP_BCAST_SSID);
	199	bcast_ssid->tlv.len =
	200	cpu_to_le16(sizeof(bcast_ssid->bcast_ctl));
	201	bcast_ssid->bcast_ctl = bss_cfg->bcast_ssid_ctl;
	202	cmd_size += sizeof(struct host_cmd_tlv_bcast_ssid);
	203	tlv += sizeof(struct host_cmd_tlv_bcast_ssid);
12190c5d	204	}
4db16a18 AP	205	if (bss_cfg->channel && bss_cfg->channel <= MAX_CHANNEL_BAND_BG) {
	206	chan_band = (struct host_cmd_tlv_channel_band *)tlv;
	207	chan_band->tlv.type = cpu_to_le16(TLV_TYPE_CHANNELBANDLIST);
	208	chan_band->tlv.len =
	209	cpu_to_le16(sizeof(struct host_cmd_tlv_channel_band) -
	210	sizeof(struct host_cmd_tlv));
	211	chan_band->band_config = bss_cfg->band_cfg;
	212	chan_band->channel = bss_cfg->channel;
	213	cmd_size += sizeof(struct host_cmd_tlv_channel_band);
	214	tlv += sizeof(struct host_cmd_tlv_channel_band);
	215	}
12190c5d AP	216	if (bss_cfg->beacon_period >= MIN_BEACON_PERIOD &&
	217	bss_cfg->beacon_period <= MAX_BEACON_PERIOD) {
	218	beacon_period = (struct host_cmd_tlv_beacon_period *)tlv;
	219	beacon_period->tlv.type =
	220	cpu_to_le16(TLV_TYPE_UAP_BEACON_PERIOD);
	221	beacon_period->tlv.len =
	222	cpu_to_le16(sizeof(struct host_cmd_tlv_beacon_period) -
	223	sizeof(struct host_cmd_tlv));
	224	beacon_period->period = cpu_to_le16(bss_cfg->beacon_period);
	225	cmd_size += sizeof(struct host_cmd_tlv_beacon_period);
	226	tlv += sizeof(struct host_cmd_tlv_beacon_period);
	227	}
	228	if (bss_cfg->dtim_period >= MIN_DTIM_PERIOD &&
	229	bss_cfg->dtim_period <= MAX_DTIM_PERIOD) {
	230	dtim_period = (struct host_cmd_tlv_dtim_period *)tlv;
	231	dtim_period->tlv.type = cpu_to_le16(TLV_TYPE_UAP_DTIM_PERIOD);
	232	dtim_period->tlv.len =
	233	cpu_to_le16(sizeof(struct host_cmd_tlv_dtim_period) -
	234	sizeof(struct host_cmd_tlv));
	235	dtim_period->period = bss_cfg->dtim_period;
	236	cmd_size += sizeof(struct host_cmd_tlv_dtim_period);
	237	tlv += sizeof(struct host_cmd_tlv_dtim_period);
	238	}
9b930eae AP	239	if (bss_cfg->rts_threshold <= MWIFIEX_RTS_MAX_VALUE) {
	240	rts_threshold = (struct host_cmd_tlv_rts_threshold *)tlv;
	241	rts_threshold->tlv.type =
	242	cpu_to_le16(TLV_TYPE_UAP_RTS_THRESHOLD);
	243	rts_threshold->tlv.len =
	244	cpu_to_le16(sizeof(struct host_cmd_tlv_rts_threshold) -
	245	sizeof(struct host_cmd_tlv));
	246	rts_threshold->rts_thr = cpu_to_le16(bss_cfg->rts_threshold);
	247	cmd_size += sizeof(struct host_cmd_tlv_frag_threshold);
	248	tlv += sizeof(struct host_cmd_tlv_frag_threshold);
	249	}
	250	if ((bss_cfg->frag_threshold >= MWIFIEX_FRAG_MIN_VALUE) &&
	251	(bss_cfg->frag_threshold <= MWIFIEX_FRAG_MAX_VALUE)) {
	252	frag_threshold = (struct host_cmd_tlv_frag_threshold *)tlv;
	253	frag_threshold->tlv.type =
	254	cpu_to_le16(TLV_TYPE_UAP_FRAG_THRESHOLD);
	255	frag_threshold->tlv.len =
	256	cpu_to_le16(sizeof(struct host_cmd_tlv_frag_threshold) -
	257	sizeof(struct host_cmd_tlv));
	258	frag_threshold->frag_thr = cpu_to_le16(bss_cfg->frag_threshold);
	259	cmd_size += sizeof(struct host_cmd_tlv_frag_threshold);
	260	tlv += sizeof(struct host_cmd_tlv_frag_threshold);
	261	}
	262	if (bss_cfg->retry_limit <= MWIFIEX_RETRY_LIMIT) {
	263	retry_limit = (struct host_cmd_tlv_retry_limit *)tlv;
	264	retry_limit->tlv.type = cpu_to_le16(TLV_TYPE_UAP_RETRY_LIMIT);
	265	retry_limit->tlv.len =
	266	cpu_to_le16(sizeof(struct host_cmd_tlv_retry_limit) -
	267	sizeof(struct host_cmd_tlv));
	268	retry_limit->limit = (u8)bss_cfg->retry_limit;
	269	cmd_size += sizeof(struct host_cmd_tlv_retry_limit);
	270	tlv += sizeof(struct host_cmd_tlv_retry_limit);
	271	}
f752dcd5 AP	272	if ((bss_cfg->protocol & PROTOCOL_WPA) \|\|
	273	(bss_cfg->protocol & PROTOCOL_WPA2) \|\|
	274	(bss_cfg->protocol & PROTOCOL_EAP)) {
	275	tlv_akmp = (struct host_cmd_tlv_akmp *)tlv;
	276	tlv_akmp->tlv.type = cpu_to_le16(TLV_TYPE_UAP_AKMP);
	277	tlv_akmp->tlv.len =
	278	cpu_to_le16(sizeof(struct host_cmd_tlv_akmp) -
	279	sizeof(struct host_cmd_tlv));
	280	tlv_akmp->key_mgmt_operation =
	281	cpu_to_le16(bss_cfg->key_mgmt_operation);
	282	tlv_akmp->key_mgmt = cpu_to_le16(bss_cfg->key_mgmt);
	283	cmd_size += sizeof(struct host_cmd_tlv_akmp);
	284	tlv += sizeof(struct host_cmd_tlv_akmp);
	285
	286	if (bss_cfg->wpa_cfg.pairwise_cipher_wpa &
	287	VALID_CIPHER_BITMAP) {
	288	pwk_cipher = (struct host_cmd_tlv_pwk_cipher *)tlv;
	289	pwk_cipher->tlv.type =
	290	cpu_to_le16(TLV_TYPE_PWK_CIPHER);
	291	pwk_cipher->tlv.len = cpu_to_le16(
	292	sizeof(struct host_cmd_tlv_pwk_cipher) -
	293	sizeof(struct host_cmd_tlv));
	294	pwk_cipher->proto = cpu_to_le16(PROTOCOL_WPA);
	295	pwk_cipher->cipher =
	296	bss_cfg->wpa_cfg.pairwise_cipher_wpa;
	297	cmd_size += sizeof(struct host_cmd_tlv_pwk_cipher);
	298	tlv += sizeof(struct host_cmd_tlv_pwk_cipher);
	299	}
	300	if (bss_cfg->wpa_cfg.pairwise_cipher_wpa2 &
	301	VALID_CIPHER_BITMAP) {
	302	pwk_cipher = (struct host_cmd_tlv_pwk_cipher *)tlv;
	303	pwk_cipher->tlv.type = cpu_to_le16(TLV_TYPE_PWK_CIPHER);
	304	pwk_cipher->tlv.len = cpu_to_le16(
	305	sizeof(struct host_cmd_tlv_pwk_cipher) -
	306	sizeof(struct host_cmd_tlv));
	307	pwk_cipher->proto = cpu_to_le16(PROTOCOL_WPA2);
	308	pwk_cipher->cipher =
	309	bss_cfg->wpa_cfg.pairwise_cipher_wpa2;
	310	cmd_size += sizeof(struct host_cmd_tlv_pwk_cipher);
	311	tlv += sizeof(struct host_cmd_tlv_pwk_cipher);
	312	}
	313	if (bss_cfg->wpa_cfg.group_cipher & VALID_CIPHER_BITMAP) {
	314	gwk_cipher = (struct host_cmd_tlv_gwk_cipher *)tlv;
	315	gwk_cipher->tlv.type = cpu_to_le16(TLV_TYPE_GWK_CIPHER);
	316	gwk_cipher->tlv.len = cpu_to_le16(
	317	sizeof(struct host_cmd_tlv_gwk_cipher) -
	318	sizeof(struct host_cmd_tlv));
	319	gwk_cipher->cipher = bss_cfg->wpa_cfg.group_cipher;
	320	cmd_size += sizeof(struct host_cmd_tlv_gwk_cipher);
	321	tlv += sizeof(struct host_cmd_tlv_gwk_cipher);
	322	}
	323	if (bss_cfg->wpa_cfg.length) {
	324	passphrase = (struct host_cmd_tlv_passphrase *)tlv;
	325	passphrase->tlv.type =
	326	cpu_to_le16(TLV_TYPE_UAP_WPA_PASSPHRASE);
	327	passphrase->tlv.len =
	328	cpu_to_le16(bss_cfg->wpa_cfg.length);
	329	memcpy(passphrase->passphrase,
	330	bss_cfg->wpa_cfg.passphrase,
	331	bss_cfg->wpa_cfg.length);
	332	cmd_size += sizeof(struct host_cmd_tlv) +
	333	bss_cfg->wpa_cfg.length;
	334	tlv += sizeof(struct host_cmd_tlv) +
	335	bss_cfg->wpa_cfg.length;
336	}
337	}
338	if ((bss_cfg->auth_mode <= WLAN_AUTH_SHARED_KEY) \|\|
339	(bss_cfg->auth_mode == MWIFIEX_AUTH_MODE_AUTO)) {
340	auth_type = (struct host_cmd_tlv_auth_type *)tlv;
341	auth_type->tlv.type = cpu_to_le16(TLV_TYPE_AUTH_TYPE);
342	auth_type->tlv.len =
343	cpu_to_le16(sizeof(struct host_cmd_tlv_auth_type) -
344	sizeof(struct host_cmd_tlv));
345	auth_type->auth_type = (u8)bss_cfg->auth_mode;
346	cmd_size += sizeof(struct host_cmd_tlv_auth_type);
347	tlv += sizeof(struct host_cmd_tlv_auth_type);
348	}
349	if (bss_cfg->protocol) {
350	encrypt_protocol = (struct host_cmd_tlv_encrypt_protocol *)tlv;
351	encrypt_protocol->tlv.type =
352	cpu_to_le16(TLV_TYPE_UAP_ENCRY_PROTOCOL);
353	encrypt_protocol->tlv.len =
354	cpu_to_le16(sizeof(struct host_cmd_tlv_encrypt_protocol)
355	- sizeof(struct host_cmd_tlv));
356	encrypt_protocol->proto = cpu_to_le16(bss_cfg->protocol);
357	cmd_size += sizeof(struct host_cmd_tlv_encrypt_protocol);
358	tlv += sizeof(struct host_cmd_tlv_encrypt_protocol);
359	}
4db16a18	360
22281256 AP	361	if (bss_cfg->ht_cap.cap_info) {
	362	htcap = (struct mwifiex_ie_types_htcap *)tlv;
	363	htcap->header.type = cpu_to_le16(WLAN_EID_HT_CAPABILITY);
	364	htcap->header.len =
	365	cpu_to_le16(sizeof(struct ieee80211_ht_cap));
	366	htcap->ht_cap.cap_info = bss_cfg->ht_cap.cap_info;
	367	htcap->ht_cap.ampdu_params_info =
	368	bss_cfg->ht_cap.ampdu_params_info;
	369	memcpy(&htcap->ht_cap.mcs, &bss_cfg->ht_cap.mcs,
	370	sizeof(struct ieee80211_mcs_info));
	371	htcap->ht_cap.extended_ht_cap_info =
	372	bss_cfg->ht_cap.extended_ht_cap_info;
	373	htcap->ht_cap.tx_BF_cap_info = bss_cfg->ht_cap.tx_BF_cap_info;
	374	htcap->ht_cap.antenna_selection_info =
	375	bss_cfg->ht_cap.antenna_selection_info;
	376	cmd_size += sizeof(struct mwifiex_ie_types_htcap);
	377	tlv += sizeof(struct mwifiex_ie_types_htcap);
	378	}
	379
e76268da AP	380	*param_size = cmd_size;
	381
	382	return 0;
	383	}
	384
ede98bfa AP	385	/* This function parses custom IEs from IE list and prepares command buffer */
	386	static int mwifiex_uap_custom_ie_prepare(u8 tlv, void cmd_buf, u16 *ie_size)
	387	{
	388	struct mwifiex_ie_list *ap_ie = cmd_buf;
	389	struct host_cmd_tlv tlv_ie = (struct host_cmd_tlv )tlv;
	390
	391	if (!ap_ie \|\| !ap_ie->len \|\| !ap_ie->ie_list)
	392	return -1;
	393
	394	*ie_size += le16_to_cpu(ap_ie->len) + sizeof(struct host_cmd_tlv);
	395
	396	tlv_ie->type = cpu_to_le16(TLV_TYPE_MGMT_IE);
	397	tlv_ie->len = ap_ie->len;
	398	tlv += sizeof(struct host_cmd_tlv);
	399
	400	memcpy(tlv, ap_ie->ie_list, le16_to_cpu(ap_ie->len));
	401
	402	return 0;
	403	}
	404
e76268da AP	405	/* Parse AP config structure and prepare TLV based command structure
	406	* to be sent to FW for uAP configuration
	407	*/
	408	static int
	409	mwifiex_cmd_uap_sys_config(struct host_cmd_ds_command *cmd, u16 cmd_action,
	410	u32 type, void *cmd_buf)
	411	{
	412	u8 *tlv;
ede98bfa	413	u16 cmd_size, param_size, ie_size;
e76268da AP	414	struct host_cmd_ds_sys_config *sys_cfg;
	415
	416	cmd->command = cpu_to_le16(HostCmd_CMD_UAP_SYS_CONFIG);
	417	cmd_size = (u16)(sizeof(struct host_cmd_ds_sys_config) + S_DS_GEN);
	418	sys_cfg = (struct host_cmd_ds_sys_config *)&cmd->params.uap_sys_config;
	419	sys_cfg->action = cpu_to_le16(cmd_action);
	420	tlv = sys_cfg->tlv;
	421
	422	switch (type) {
	423	case UAP_BSS_PARAMS_I:
	424	param_size = cmd_size;
	425	if (mwifiex_uap_bss_param_prepare(tlv, cmd_buf, &param_size))
	426	return -1;
	427	cmd->size = cpu_to_le16(param_size);
	428	break;
ede98bfa AP	429	case UAP_CUSTOM_IE_I:
	430	ie_size = cmd_size;
	431	if (mwifiex_uap_custom_ie_prepare(tlv, cmd_buf, &ie_size))
	432	return -1;
	433	cmd->size = cpu_to_le16(ie_size);
	434	break;
e76268da AP	435	default:
	436	return -1;
	437	}
	438
4db16a18 AP	439	return 0;
	440	}
	441
40d07030 AP	442	/* This function prepares the AP specific commands before sending them
	443	* to the firmware.
	444	* This is a generic function which calls specific command preparation
	445	* routines based upon the command number.
	446	*/
	447	int mwifiex_uap_prepare_cmd(struct mwifiex_private *priv, u16 cmd_no,
e76268da	448	u16 cmd_action, u32 type,
40d07030 AP	449	void data_buf, void cmd_buf)
	450	{
	451	struct host_cmd_ds_command *cmd = cmd_buf;
	452
	453	switch (cmd_no) {
4db16a18	454	case HostCmd_CMD_UAP_SYS_CONFIG:
e76268da	455	if (mwifiex_cmd_uap_sys_config(cmd, cmd_action, type, data_buf))
4db16a18 AP	456	return -1;
4db16a18 AP	457	break;
40d07030 AP	458	case HostCmd_CMD_UAP_BSS_START:
	459	case HostCmd_CMD_UAP_BSS_STOP:
	460	cmd->command = cpu_to_le16(cmd_no);
	461	cmd->size = cpu_to_le16(S_DS_GEN);
	462	break;
	463	default:
	464	dev_err(priv->adapter->dev,
	465	"PREP_CMD: unknown cmd %#x\n", cmd_no);
	466	return -1;
	467	}
	468
	469	return 0;
	470	}