linux/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c

/*
 * Copyright (c) 2010-2011 Atheros Communications Inc.
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include "htc.h"

/******/
/* TX */
/******/

static const int subtype_txq_to_hwq[] = …;

#define ATH9K_HTC_INIT_TXQ(subtype) …

int get_hw_qnum(u16 queue, int *hwq_map)
{ … }

void ath9k_htc_check_stop_queues(struct ath9k_htc_priv *priv)
{ … }

void ath9k_htc_check_wake_queues(struct ath9k_htc_priv *priv)
{ … }

int ath9k_htc_tx_get_slot(struct ath9k_htc_priv *priv)
{ … }

void ath9k_htc_tx_clear_slot(struct ath9k_htc_priv *priv, int slot)
{ … }

static inline enum htc_endpoint_id get_htc_epid(struct ath9k_htc_priv *priv,
						u16 qnum)
{ … }

static inline struct sk_buff_head*
get_htc_epid_queue(struct ath9k_htc_priv *priv, u8 epid)
{ … }

/*
 * Removes the driver header and returns the TX slot number
 */
static inline int strip_drv_header(struct ath9k_htc_priv *priv,
				   struct sk_buff *skb)
{ … }

int ath_htc_txq_update(struct ath9k_htc_priv *priv, int qnum,
		       struct ath9k_tx_queue_info *qinfo)
{ … }

static void ath9k_htc_tx_mgmt(struct ath9k_htc_priv *priv,
			      struct ath9k_htc_vif *avp,
			      struct sk_buff *skb,
			      u8 sta_idx, u8 vif_idx, u8 slot)
{ … }

static void ath9k_htc_tx_data(struct ath9k_htc_priv *priv,
			      struct ieee80211_vif *vif,
			      struct sk_buff *skb,
			      u8 sta_idx, u8 vif_idx, u8 slot,
			      bool is_cab)
{ … }

int ath9k_htc_tx_start(struct ath9k_htc_priv *priv,
		       struct ieee80211_sta *sta,
		       struct sk_buff *skb,
		       u8 slot, bool is_cab)
{ … }

static inline bool __ath9k_htc_check_tx_aggr(struct ath9k_htc_priv *priv,
					     struct ath9k_htc_sta *ista, u8 tid)
{ … }

static void ath9k_htc_check_tx_aggr(struct ath9k_htc_priv *priv,
				    struct ieee80211_vif *vif,
				    struct sk_buff *skb)
{ … }

static void ath9k_htc_tx_process(struct ath9k_htc_priv *priv,
				 struct sk_buff *skb,
				 struct __wmi_event_txstatus *txs)
{ … }

static inline void ath9k_htc_tx_drainq(struct ath9k_htc_priv *priv,
				       struct sk_buff_head *queue)
{ … }

void ath9k_htc_tx_drain(struct ath9k_htc_priv *priv)
{ … }

void ath9k_tx_failed_tasklet(struct tasklet_struct *t)
{ … }

static inline bool check_cookie(struct ath9k_htc_priv *priv,
				struct sk_buff *skb,
				u8 cookie, u8 epid)
{ … }

static struct sk_buff* ath9k_htc_tx_get_packet(struct ath9k_htc_priv *priv,
					       struct __wmi_event_txstatus *txs)
{ … }

void ath9k_htc_txstatus(struct ath9k_htc_priv *priv, void *wmi_event)
{ … }

void ath9k_htc_txep(void *drv_priv, struct sk_buff *skb,
		    enum htc_endpoint_id ep_id, bool txok)
{ … }

static inline bool check_packet(struct ath9k_htc_priv *priv, struct sk_buff *skb)
{ … }

static void ath9k_htc_tx_cleanup_queue(struct ath9k_htc_priv *priv,
				       struct sk_buff_head *epid_queue)
{ … }

void ath9k_htc_tx_cleanup_timer(struct timer_list *t)
{ … }

int ath9k_tx_init(struct ath9k_htc_priv *priv)
{ … }

void ath9k_tx_cleanup(struct ath9k_htc_priv *priv)
{ … }

bool ath9k_htc_txq_setup(struct ath9k_htc_priv *priv, int subtype)
{ … }

int ath9k_htc_cabq_setup(struct ath9k_htc_priv *priv)
{ … }

/******/
/* RX */
/******/

/*
 * Calculate the RX filter to be set in the HW.
 */
u32 ath9k_htc_calcrxfilter(struct ath9k_htc_priv *priv)
{ … }

/*
 * Recv initialization for opmode change.
 */
static void ath9k_htc_opmode_init(struct ath9k_htc_priv *priv)
{ … }

void ath9k_host_rx_init(struct ath9k_htc_priv *priv)
{ … }

static inline void convert_htc_flag(struct ath_rx_status *rx_stats,
				   struct ath_htc_rx_status *rxstatus)
{ … }

static void rx_status_htc_to_ath(struct ath_rx_status *rx_stats,
				 struct ath_htc_rx_status *rxstatus)
{ … }

static bool ath9k_rx_prepare(struct ath9k_htc_priv *priv,
			     struct ath9k_htc_rxbuf *rxbuf,
			     struct ieee80211_rx_status *rx_status)

{ … }

/*
 * FIXME: Handle FLUSH later on.
 */
void ath9k_rx_tasklet(struct tasklet_struct *t)
{ … }

void ath9k_htc_rxep(void *drv_priv, struct sk_buff *skb,
		    enum htc_endpoint_id ep_id)
{ … }

/* FIXME: Locking for cleanup/init */

void ath9k_rx_cleanup(struct ath9k_htc_priv *priv)
{ … }

int ath9k_rx_init(struct ath9k_htc_priv *priv)
{ … }