219 lines
6.2 KiB
C
219 lines
6.2 KiB
C
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/*
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* tx/rx interfaces for XRadio drivers
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*
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* Copyright (c) 2013
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* Xradio Technology Co., Ltd. <www.xradiotech.com>
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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 XRADIO_TXRX_H
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#define XRADIO_TXRX_H
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#include <linux/list.h>
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#include "wsm.h"
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/* extern */ struct ieee80211_hw;
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/* extern */ struct sk_buff;
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/* extern */ struct xradio_txpriv;
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/* extern */ struct xradio_vif;
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#ifdef SUPPORT_HT40
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#ifdef CONFIG_XRADIO_DEBUGFS
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/*for tx rates debug.*/
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extern u8 rates_dbg_en;
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extern u16 rates_debug[6];
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extern u8 Ratecnt_dbg;
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extern u8 retry_dbg;
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#endif
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#else
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#ifdef CONFIG_XRADIO_DEBUGFS
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/*for tx rates debug.*/
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extern u8 rates_dbg_en;
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extern u32 rates_debug[3];
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extern u8 maxRate_dbg;
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extern u8 retry_dbg;
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#endif
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#endif
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#ifdef SUPPORT_HT40
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/* ModemType in RateEntry */
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#define MODEMTYPE_SHIFT 14
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#define MODEMTYPE_MASK 0x03
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#define RATE_MODEM_LEGACY 0x00
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#define RATE_MODEM_HTOFDM 0x01
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#define RATE_MODEM_VHTOFDM 0x02
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/* Bandwidth in RateEntry */
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#define BANDWIDTH_SHIFT 12
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#define BANDWIDTH_MASK 0x03
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#define RATE_BANDWIDTH_20M 0x00
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#define RATE_BANDWIDTH_40M 0x01
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#define RATE_BANDWIDTH_80M 0x02
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/* FormatFlag in RateEntry flags */
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#define RATE_F_MASK 0x0F00
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#define RATE_F_PREAMBLE_S 0x0100
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#define RATE_F_SGI 0x0200
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#define RATE_F_GF 0x0400
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#define RATE_F_STBC 0x0800
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#define MAKE_PREAMBLE_S(b) ((!!(b))<<8)
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#define MAKE_SGI(b) ((!!(b))<<9)
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#define MAKE_GF(b) ((!!(b))<<10)
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#define MAKE_STBC(b) ((!!(b))<<11)
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#define RATEINDEX_SHIFT 4
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#define RATEINDEX_MASK 0xf
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#define MCS_RATES_OFF 14
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#define MAX_RATES_IDX 21
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#define A_RATES_OFF 6
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#define B_RATE_INDEX 0
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#define AG_RATE_INDEX A_RATES_OFF
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#define XRADIO_INVALID_RATE_ID (0xFF)
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#define XRADIO_INVALID_RATE_ENTRY 0x00F0
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/* ModemType in RateEntry */
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#define FW_RATE_MODEM_SHIFT 14
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#define FW_RATE_MODEM_MASK 0xC000
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#define FW_RATE_MODEM_LEGACY 0x00
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#define FW_RATE_MODEM_HTOFDM 0x01
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#define FW_RATE_MODEM_VHTOFDM 0x02
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/* Bandwidth in RateEntry */
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#define FW_RATE_BW_SHIFT 12
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#define FW_RATE_BW_MASK 0x3000
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#define FW_RATE_BW_20M 0x00
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#define FW_RATE_BW_40M 0x01
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#define FW_RATE_BW_80M 0x02
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/* FormatFlag in RateEntry flags */
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#define FW_RATE_F_SHIFT 8
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#define FW_RATE_F_MASK 0x0F00
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#define FW_RATE_F_SPRE 0x1
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#define FW_RATE_F_SGI 0x2
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#define FW_RATE_F_GF 0x4
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#define FW_RATE_F_STBC 0x8
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/* RateIndex */
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#define FW_RATE_INDEX_SHIFT 4
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#define FW_RATE_INDEX_MASK 0x00F0
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#define FW_RATE_USE_DEFAULT 0xF
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/* MaxRetry */
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#define FW_RATE_MAXRETRY_SHIFT 0
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#define FW_RATE_MAXRETRY_MASK 0x000F
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#define GET_RATE_ENTRY_MODEM(_RateEntry) (((_RateEntry)&FW_RATE_MODEM_MASK)>>FW_RATE_MODEM_SHIFT)
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#define GET_RATE_ENTRY_BANDWIDTH(_RateEntry) (((_RateEntry)&FW_RATE_BW_MASK)>>FW_RATE_BW_SHIFT)
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#define GET_RATE_ENTRY_FLAGS(_RateEntry) (((_RateEntry)&FW_RATE_F_MASK)>>FW_RATE_F_SHIFT)
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#define GET_RATE_ENTRY_RATEINDEX(_RateEntry) (((_RateEntry)&FW_RATE_INDEX_MASK)>>FW_RATE_INDEX_SHIFT)
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#define GET_RATE_ENTRY_MAXRETRY(_RateEntry) (((_RateEntry)&FW_RATE_MAXRETRY_MASK)>>FW_RATE_MAXRETRY_SHIFT)
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#define PUT_RATE_ENTRY_MODEM(_Value) (((_Value)<<FW_RATE_MODEM_SHIFT)&FW_RATE_MODEM_MASK)
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#define PUT_RATE_ENTRY_BANDWIDTH(_Value) (((_Value)<<FW_RATE_BW_SHIFT)&FW_RATE_BW_MASK)
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#define PUT_RATE_ENTRY_FLAGS(_Value) (((_Value)<<FW_RATE_F_SHIFT)&FW_RATE_F_MASK)
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#define PUT_RATE_ENTRY_RATEINDEX(_Value) (((_Value)<<FW_RATE_INDEX_SHIFT)&FW_RATE_INDEX_MASK)
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#define PUT_RATE_ENTRY_MAXRETRY(_Value) (((_Value)<<FW_RATE_MAXRETRY_SHIFT)&FW_RATE_MAXRETRY_MASK)
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#endif
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struct tx_policy {
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union {
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#ifdef SUPPORT_HT40
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__le16 rate_entrys[MAX_RATES_STAGE];
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#else
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__le32 tbl[3];
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#endif
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u8 raw[12];
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};
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u8 defined; /* TODO: u32 or u8, profile and select best */
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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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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;
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bool queue_locked;
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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 xradio_common *hw_priv);
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void tx_policy_upload_work(struct work_struct *work);
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/* ******************************************************************** */
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/* TX implementation */
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u32 xradio_rate_mask_to_wsm(struct xradio_common *hw_priv,
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u32 rates);
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void xradio_tx(struct ieee80211_hw *dev, struct sk_buff *skb);
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void xradio_skb_dtor(struct xradio_common *hw_priv,
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struct sk_buff *skb,
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const struct xradio_txpriv *txpriv);
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/* ******************************************************************** */
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#ifdef SUPPORT_HT40
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/* Convert hw_value to rate entry */
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u16 xradio_get_rate_entry(const struct xradio_common *hw_priv,
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u8 Bandwidth, u16 FormatFlag, u8 hw_value);
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#endif
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/* WSM callbacks */
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void xradio_tx_confirm_cb(struct xradio_common *hw_priv,
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struct wsm_tx_confirm *arg);
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void xradio_rx_cb(struct xradio_vif *priv,
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struct wsm_rx *arg,
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struct sk_buff **skb_p);
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/* ******************************************************************** */
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/* Timeout */
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void xradio_tx_timeout(struct work_struct *work);
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/* ******************************************************************** */
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/* Security */
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int xradio_alloc_key(struct xradio_common *hw_priv);
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void xradio_free_key(struct xradio_common *hw_priv, int idx);
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void xradio_free_keys(struct xradio_common *hw_priv);
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int xradio_upload_keys(struct xradio_vif *priv);
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/* ******************************************************************** */
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/* Workaround for WFD test case 6.1.10 */
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#if defined(CONFIG_XRADIO_USE_EXTENSIONS)
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void xradio_link_id_reset(struct work_struct *work);
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#endif
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#endif /* XRADIO_TXRX_H */
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