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/*
* Datapath interface for ST-Ericsson CW1200 mac80211 drivers
*
* Copyright (c) 2010, ST-Ericsson
* Author: Dmitry Tarnyagin <dmitry.tarnyagin@stericsson.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef CW1200_TXRX_H
#define CW1200_TXRX_H
#include <linux/list.h>
/* extern */ struct ieee80211_hw;
/* extern */ struct sk_buff;
/* extern */ struct wsm_tx;
/* extern */ struct wsm_tx_confirm;
struct tx_policy {
union {
__le32 tbl[3];
u8 raw[12];
};
u8 defined; /* TODO: u32 or u8, profile and select best */
u8 usage_count; /* --// -- */
u8 retry_count; /* --// -- */
u8 uploaded;
};
struct tx_policy_cache_entry {
struct tx_policy policy;
struct list_head link;
};
#define TX_POLICY_CACHE_SIZE (8)
struct tx_policy_cache {
struct tx_policy_cache_entry cache[TX_POLICY_CACHE_SIZE];
struct list_head used;
struct list_head free;
spinlock_t lock;
};
struct tx_info {
u8 link_id;
u16 ethertype;
};
/* ******************************************************************** */
/* TX policy cache */
/* Intention of TX policy cache is an overcomplicated WSM API.
* Device does not accept per-PDU tx retry sequence.
* It uses "tx retry policy id" instead, so driver code has to sync
* linux tx retry sequences with a retry policy table in the device.
*/
void tx_policy_init(struct cw1200_common *priv);
void tx_policy_upload_work(struct work_struct *work);
void tx_policy_put(struct cw1200_common *priv, int idx);
/* ******************************************************************** */
/* TX implementation */
u32 cw1200_rate_mask_to_wsm(struct cw1200_common *priv,
u32 rates);
int cw1200_skb_to_wsm(struct cw1200_common *priv,
struct sk_buff *skb, struct wsm_tx *wsm,
struct tx_info *txinfo);
void cw1200_tx(struct ieee80211_hw *dev, struct sk_buff *skb);
void cw1200_notify_buffered_tx(struct cw1200_common *priv,
struct sk_buff *skb, int link_id, int tid);
/* ******************************************************************** */
/* WSM callbacks */
void cw1200_tx_confirm_cb(struct cw1200_common *priv,
struct wsm_tx_confirm *arg);
void cw1200_rx_cb(struct cw1200_common *priv,
struct wsm_rx *arg,
struct sk_buff **skb_p);
/* ******************************************************************** */
/* Timeout */
void cw1200_tx_timeout(struct work_struct *work);
/* ******************************************************************** */
/* Security */
int cw1200_alloc_key(struct cw1200_common *priv);
void cw1200_free_key(struct cw1200_common *priv, int idx);
void cw1200_free_keys(struct cw1200_common *priv);
int cw1200_upload_keys(struct cw1200_common *priv);
#endif /* CW1200_TXRX_H */
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