107 lines
3.2 KiB
C
107 lines
3.2 KiB
C
/*
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* Datapath interface for ST-Ericsson CW1200 mac80211 drivers
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*
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* Copyright (c) 2010, ST-Ericsson
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* Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef CW1200_TXRX_H
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#define CW1200_TXRX_H
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#include <linux/list.h>
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/* extern */ struct ieee80211_hw;
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/* extern */ struct sk_buff;
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/* extern */ struct wsm_tx;
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/* extern */ struct wsm_rx;
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/* extern */ struct wsm_tx_confirm;
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/* extern */ struct cw1200_txpriv;
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struct tx_policy {
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union {
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__le32 tbl[3];
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u8 raw[12];
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};
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u8 defined;
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u8 usage_count;
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u8 retry_count;
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u8 uploaded;
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};
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struct tx_policy_cache_entry {
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struct tx_policy policy;
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struct list_head link;
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};
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#define TX_POLICY_CACHE_SIZE (8)
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struct tx_policy_cache {
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struct tx_policy_cache_entry cache[TX_POLICY_CACHE_SIZE];
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struct list_head used;
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struct list_head free;
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spinlock_t lock; /* Protect policy cache */
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};
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/* ******************************************************************** */
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/* TX policy cache */
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/* Intention of TX policy cache is an overcomplicated WSM API.
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* Device does not accept per-PDU tx retry sequence.
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* It uses "tx retry policy id" instead, so driver code has to sync
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* linux tx retry sequences with a retry policy table in the device.
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*/
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void tx_policy_init(struct cw1200_common *priv);
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void tx_policy_upload_work(struct work_struct *work);
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void tx_policy_clean(struct cw1200_common *priv);
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/* ******************************************************************** */
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/* TX implementation */
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u32 cw1200_rate_mask_to_wsm(struct cw1200_common *priv,
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u32 rates);
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void cw1200_tx(struct ieee80211_hw *dev,
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struct ieee80211_tx_control *control,
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struct sk_buff *skb);
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void cw1200_skb_dtor(struct cw1200_common *priv,
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struct sk_buff *skb,
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const struct cw1200_txpriv *txpriv);
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/* ******************************************************************** */
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/* WSM callbacks */
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void cw1200_tx_confirm_cb(struct cw1200_common *priv,
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int link_id,
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struct wsm_tx_confirm *arg);
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void cw1200_rx_cb(struct cw1200_common *priv,
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struct wsm_rx *arg,
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int link_id,
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struct sk_buff **skb_p);
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/* ******************************************************************** */
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/* Timeout */
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void cw1200_tx_timeout(struct work_struct *work);
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/* ******************************************************************** */
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/* Security */
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int cw1200_alloc_key(struct cw1200_common *priv);
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void cw1200_free_key(struct cw1200_common *priv, int idx);
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void cw1200_free_keys(struct cw1200_common *priv);
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int cw1200_upload_keys(struct cw1200_common *priv);
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/* ******************************************************************** */
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/* Workaround for WFD test case 6.1.10 */
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void cw1200_link_id_reset(struct work_struct *work);
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#define CW1200_LINK_ID_GC_TIMEOUT ((unsigned long)(10 * HZ))
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int cw1200_find_link_id(struct cw1200_common *priv, const u8 *mac);
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int cw1200_alloc_link_id(struct cw1200_common *priv, const u8 *mac);
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void cw1200_link_id_work(struct work_struct *work);
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void cw1200_link_id_gc_work(struct work_struct *work);
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#endif /* CW1200_TXRX_H */
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