wireless: mwifiex: initial commit for Marvell mwifiex driver

This driver adds WiFi support for Marvell 802.11n based chipsets
with SDIO interface. Currently only SD8787 is supported. More
chipsets will be supported later.

drivers/net/wireless/mwifiex/

Signed-off-by: Nishant Sarmukadam <nishants@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kiran Divekar <dkiran@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com>
Signed-off-by: Marc Yang <yangyang@marvell.com>
Signed-off-by: Ramesh Radhakrishnan <rramesh@marvell.com>
Signed-off-by: Frank Huang <frankh@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 178 insertions, 0 deletions

diff --git a/drivers/net/wireless/mwifiex/11n.h b/drivers/net/wireless/mwifiex/11n.h
new file mode 100644
index 00000000000..769a27f2b2c
--- /dev/null
+++ b/drivers/net/wireless/mwifiex/11n.h
@@ -0,0 +1,178 @@
+/*
+ * Marvell Wireless LAN device driver: 802.11n
+ *
+ * Copyright (C) 2011, 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.
+ */
+
+#ifndef _MWIFIEX_11N_H_
+#define _MWIFIEX_11N_H_
+
+#include "11n_aggr.h"
+#include "11n_rxreorder.h"
+#include "wmm.h"
+
+void mwifiex_show_dot_11n_dev_cap(struct mwifiex_adapter *adapter, u32 cap);
+void mwifiex_show_dev_mcs_support(struct mwifiex_adapter *adapter, u8 support);
+int mwifiex_ret_11n_delba(struct mwifiex_private *priv,
+			  struct host_cmd_ds_command *resp);
+int mwifiex_ret_11n_addba_req(struct mwifiex_private *priv,
+			      struct host_cmd_ds_command *resp);
+int mwifiex_ret_11n_cfg(struct mwifiex_private *priv,
+			struct host_cmd_ds_command *resp,
+			void *data_buf);
+int mwifiex_cmd_11n_cfg(struct mwifiex_private *priv,
+			struct host_cmd_ds_command *cmd,
+			u16 cmd_action, void *data_buf);
+
+int mwifiex_cmd_11n_cfg(struct mwifiex_private *priv,
+			struct host_cmd_ds_command *cmd,
+			u16 cmd_action, void *data_buf);
+
+int mwifiex_cmd_append_11n_tlv(struct mwifiex_private *priv,
+			       struct mwifiex_bssdescriptor *bss_desc,
+			       u8 **buffer);
+void mwifiex_cfg_tx_buf(struct mwifiex_private *priv,
+			struct mwifiex_bssdescriptor *bss_desc);
+void mwifiex_fill_cap_info(struct mwifiex_private *,
+			   struct mwifiex_ie_types_htcap *);
+int mwifiex_set_get_11n_htcap_cfg(struct mwifiex_private *priv,
+				  u16 action, int *htcap_cfg);
+void mwifiex_11n_delete_tx_ba_stream_tbl_entry(struct mwifiex_private *priv,
+					     struct mwifiex_tx_ba_stream_tbl
+					     *tx_tbl);
+void mwifiex_11n_delete_all_tx_ba_stream_tbl(struct mwifiex_private *priv);
+struct mwifiex_tx_ba_stream_tbl *mwifiex_11n_get_tx_ba_stream_tbl(struct
+							     mwifiex_private
+							     *priv, int tid,
+							     u8 *ra);
+void mwifiex_11n_create_tx_ba_stream_tbl(struct mwifiex_private *priv, u8 *ra,
+				       int tid,
+				       enum mwifiex_ba_status ba_status);
+int mwifiex_send_addba(struct mwifiex_private *priv, int tid, u8 *peer_mac);
+int mwifiex_send_delba(struct mwifiex_private *priv, int tid, u8 *peer_mac,
+		       int initiator);
+void mwifiex_11n_delete_ba_stream(struct mwifiex_private *priv, u8 *del_ba);
+int mwifiex_get_rx_reorder_tbl(struct mwifiex_private *priv,
+			      struct mwifiex_ds_rx_reorder_tbl *buf);
+int mwifiex_get_tx_ba_stream_tbl(struct mwifiex_private *priv,
+			       struct mwifiex_ds_tx_ba_stream_tbl *buf);
+int mwifiex_ret_amsdu_aggr_ctrl(struct mwifiex_private *priv,
+				struct host_cmd_ds_command
+				*resp,
+				void *data_buf);
+int mwifiex_cmd_recfg_tx_buf(struct mwifiex_private *priv,
+			     struct host_cmd_ds_command *cmd,
+			     int cmd_action, void *data_buf);
+int mwifiex_cmd_amsdu_aggr_ctrl(struct mwifiex_private *priv,
+				struct host_cmd_ds_command *cmd,
+				int cmd_action,
+				void *data_buf);
+
+/*
+ * This function checks whether AMPDU is allowed or not for a particular TID.
+ */
+static inline u8
+mwifiex_is_ampdu_allowed(struct mwifiex_private *priv,
+			 struct mwifiex_ra_list_tbl *ptr, int tid)
+{
+	return ((priv->aggr_prio_tbl[tid].ampdu_ap != BA_STREAM_NOT_ALLOWED)
+		? true : false);
+}
+
+/*
+ * This function checks whether AMSDU is allowed or not for a particular TID.
+ */
+static inline u8
+mwifiex_is_amsdu_allowed(struct mwifiex_private *priv,
+			 struct mwifiex_ra_list_tbl *ptr, int tid)
+{
+	return (((priv->aggr_prio_tbl[tid].amsdu != BA_STREAM_NOT_ALLOWED)
+			&& ((priv->is_data_rate_auto)
+			|| !((priv->bitmap_rates[2]) & 0x03)))
+		? true : false);
+}
+
+/*
+ * This function checks whether a BA stream is available or not.
+ */
+static inline u8
+mwifiex_is_ba_stream_avail(struct mwifiex_private *priv)
+{
+	struct mwifiex_private *pmpriv = NULL;
+	u8 i = 0;
+	u32 ba_stream_num = 0;
+
+	for (i = 0; i < priv->adapter->priv_num; i++) {
+		pmpriv = priv->adapter->priv[i];
+		if (pmpriv)
+			ba_stream_num +=
+				mwifiex_wmm_list_len(priv->adapter,
+						     (struct list_head
+						      *) &pmpriv->
+						     tx_ba_stream_tbl_ptr);
+	}
+
+	return ((ba_stream_num <
+		 MWIFIEX_MAX_TX_BASTREAM_SUPPORTED) ? true : false);
+}
+
+/*
+ * This function finds the correct Tx BA stream to delete.
+ *
+ * Upon successfully locating, both the TID and the RA are returned.
+ */
+static inline u8
+mwifiex_find_stream_to_delete(struct mwifiex_private *priv,
+			      struct mwifiex_ra_list_tbl *ptr, int ptr_tid,
+			      int *ptid, u8 *ra)
+{
+	int tid;
+	u8 ret = false;
+	struct mwifiex_tx_ba_stream_tbl *tx_tbl;
+	unsigned long flags;
+
+	tid = priv->aggr_prio_tbl[ptr_tid].ampdu_user;
+
+	spin_lock_irqsave(&priv->tx_ba_stream_tbl_lock, flags);
+	list_for_each_entry(tx_tbl, &priv->tx_ba_stream_tbl_ptr, list) {
+		if (tid > priv->aggr_prio_tbl[tx_tbl->tid].ampdu_user) {
+			tid = priv->aggr_prio_tbl[tx_tbl->tid].ampdu_user;
+			*ptid = tx_tbl->tid;
+			memcpy(ra, tx_tbl->ra, ETH_ALEN);
+			ret = true;
+		}
+	}
+	spin_unlock_irqrestore(&priv->tx_ba_stream_tbl_lock, flags);
+
+	return ret;
+}
+
+/*
+ * This function checks whether BA stream is set up or not.
+ */
+static inline int
+mwifiex_is_ba_stream_setup(struct mwifiex_private *priv,
+			  struct mwifiex_ra_list_tbl *ptr, int tid)
+{
+	struct mwifiex_tx_ba_stream_tbl *tx_tbl;
+
+	tx_tbl = mwifiex_11n_get_tx_ba_stream_tbl(priv, tid, ptr->ra);
+	if (tx_tbl && IS_BASTREAM_SETUP(tx_tbl))
+		return true;
+
+	return false;
+}
+#endif /* !_MWIFIEX_11N_H_ */