text: #ifndef B43_XMIT_H_
  #define B43_XMIT_H_
  
  #include "main.h"
  
  #define _b43_declare_plcp_hdr(size) \
  	struct b43_plcp_hdr##size {		\
  		union {				\
  			__le32 data;		\
  			__u8 raw[size];		\
  		} __attribute__((__packed__));	\
  	} __attribute__((__packed__))
  
  /* struct b43_plcp_hdr4 */
  _b43_declare_plcp_hdr(4);
  /* struct b43_plcp_hdr6 */
  _b43_declare_plcp_hdr(6);
  
  #undef _b43_declare_plcp_hdr
  
  /* TX header for v4 firmware */
  struct b43_txhdr {
  	__le32 mac_ctl;			/* MAC TX control */
  	__le16 mac_frame_ctl;		/* Copy of the FrameControl field */
  	__le16 tx_fes_time_norm;	/* TX FES Time Normal */
  	__le16 phy_ctl;			/* PHY TX control */
  	__le16 phy_ctl1;		/* PHY TX control word 1 */
  	__le16 phy_ctl1_fb;		/* PHY TX control word 1 for fallback rates */
  	__le16 phy_ctl1_rts;		/* PHY TX control word 1 RTS */
  	__le16 phy_ctl1_rts_fb;		/* PHY TX control word 1 RTS for fallback rates */
  	__u8 phy_rate;			/* PHY rate */
  	__u8 phy_rate_rts;		/* PHY rate for RTS/CTS */
  	__u8 extra_ft;			/* Extra Frame Types */
  	__u8 chan_radio_code;		/* Channel Radio Code */
  	__u8 iv[16];			/* Encryption IV */
  	__u8 tx_receiver[6];		/* TX Frame Receiver address */
  	__le16 tx_fes_time_fb;		/* TX FES Time Fallback */
  	struct b43_plcp_hdr6 rts_plcp_fb; /* RTS fallback PLCP header */
  	__le16 rts_dur_fb;		/* RTS fallback duration */
  	struct b43_plcp_hdr6 plcp_fb;	/* Fallback PLCP header */
  	__le16 dur_fb;			/* Fallback duration */
  	__le16 mimo_modelen;		/* MIMO mode length */
  	__le16 mimo_ratelen_fb;		/* MIMO fallback rate length */
  	__le32 timeout;			/* Timeout */
  
  	union {
  		/* The new r410 format. */
  		struct {
  			__le16 mimo_antenna;		/* MIMO antenna select */
  			__le16 preload_size;		/* Preload size */
  			PAD_BYTES(2);
  			__le16 cookie;			/* TX frame cookie */
  			__le16 tx_status;		/* TX status */
  			struct b43_plcp_hdr6 rts_plcp;	/* RTS PLCP header */
  			__u8 rts_frame[16];		/* The RTS frame (if used) */
  			PAD_BYTES(2);
  			struct b43_plcp_hdr6 plcp;	/* Main PLCP header */
  		} new_format __attribute__ ((__packed__));
  
  		/* The old r351 format. */
  		struct {
  			PAD_BYTES(2);
  			__le16 cookie;			/* TX frame cookie */
  			__le16 tx_status;		/* TX status */
  			struct b43_plcp_hdr6 rts_plcp;	/* RTS PLCP header */
  			__u8 rts_frame[16];		/* The RTS frame (if used) */
  			PAD_BYTES(2);
  			struct b43_plcp_hdr6 plcp;	/* Main PLCP header */
  		} old_format __attribute__ ((__packed__));
  
  	} __attribute__ ((__packed__));
  } __attribute__ ((__packed__));
  
  /* MAC TX control */
  #define B43_TXH_MAC_USEFBR		0x10000000 /* Use fallback rate for this AMPDU */
  #define B43_TXH_MAC_KEYIDX		0x0FF00000 /* Security key index */
  #define B43_TXH_MAC_KEYIDX_SHIFT	20
  #define B43_TXH_MAC_KEYALG		0x00070000 /* Security key algorithm */
  #define B43_TXH_MAC_KEYALG_SHIFT	16
  #define B43_TXH_MAC_AMIC		0x00008000 /* AMIC */
  #define B43_TXH_MAC_RIFS		0x00004000 /* Use RIFS */
  #define B43_TXH_MAC_LIFETIME		0x00002000 /* Lifetime */
  #define B43_TXH_MAC_FRAMEBURST		0x00001000 /* Frameburst */
  #define B43_TXH_MAC_SENDCTS		0x00000800 /* Send CTS-to-self */
  #define B43_TXH_MAC_AMPDU		0x00000600 /* AMPDU status */
  #define  B43_TXH_MAC_AMPDU_MPDU		0x00000000 /* Regular MPDU, not an AMPDU */
  #define  B43_TXH_MAC_AMPDU_FIRST	0x00000200 /* First MPDU or AMPDU */
  #define  B43_TXH_MAC_AMPDU_INTER	0x00000400 /* Intermediate MPDU or AMPDU */
  #define  B43_TXH_MAC_AMPDU_LAST		0x00000600 /* Last (or only) MPDU of AMPDU */
  #define B43_TXH_MAC_40MHZ		0x00000100 /* Use 40 MHz bandwidth */
  #define B43_TXH_MAC_5GHZ		0x00000080 /* 5GHz band */
  #define B43_TXH_MAC_DFCS		0x00000040 /* DFCS */
  #define B43_TXH_MAC_IGNPMQ		0x00000020 /* Ignore PMQ */
  #define B43_TXH_MAC_HWSEQ		0x00000010 /* Use Hardware Sequence Number */
  #define B43_TXH_MAC_STMSDU		0x00000008 /* Start MSDU */
  #define B43_TXH_MAC_SENDRTS		0x00000004 /* Send RTS */
  #define B43_TXH_MAC_LONGFRAME		0x00000002 /* Long frame */
  #define B43_TXH_MAC_ACK			0x00000001 /* Immediate ACK */
  
  /* Extra Frame Types */
  #define B43_TXH_EFT_FB			0x03 /* Data frame fallback encoding */
  #define  B43_TXH_EFT_FB_CCK		0x00 /* CCK */
  #define  B43_TXH_EFT_FB_OFDM		0x01 /* OFDM */
  #define  B43_TXH_EFT_FB_EWC		0x02 /* EWC */
  #define  B43_TXH_EFT_FB_N		0x03 /* N */
  #define B43_TXH_EFT_RTS			0x0C /* RTS/CTS encoding */
  #define  B43_TXH_EFT_RTS_CCK		0x00 /* CCK */
  #define  B43_TXH_EFT_RTS_OFDM		0x04 /* OFDM */
  #define  B43_TXH_EFT_RTS_EWC		0x08 /* EWC */
  #define  B43_TXH_EFT_RTS_N		0x0C /* N */
  #define B43_TXH_EFT_RTSFB		0x30 /* RTS/CTS fallback encoding */
  #define  B43_TXH_EFT_RTSFB_CCK		0x00 /* CCK */
  #define  B43_TXH_EFT_RTSFB_OFDM		0x10 /* OFDM */
  #define  B43_TXH_EFT_RTSFB_EWC		0x20 /* EWC */
  #define  B43_TXH_EFT_RTSFB_N		0x30 /* N */
  
  /* PHY TX control word */
  #define B43_TXH_PHY_ENC			0x0003 /* Data frame encoding */
  #define  B43_TXH_PHY_ENC_CCK		0x0000 /* CCK */
  #define  B43_TXH_PHY_ENC_OFDM		0x0001 /* OFDM */
  #define  B43_TXH_PHY_ENC_EWC		0x0002 /* EWC */
  #define  B43_TXH_PHY_ENC_N		0x0003 /* N */
  #define B43_TXH_PHY_SHORTPRMBL		0x0010 /* Use short preamble */
  #define B43_TXH_PHY_ANT			0x03C0 /* Antenna selection */
  #define  B43_TXH_PHY_ANT0		0x0000 /* Use antenna 0 */
  #define  B43_TXH_PHY_ANT1		0x0040 /* Use antenna 1 */
  #define  B43_TXH_PHY_ANT01AUTO		0x00C0 /* Use antenna 0/1 auto */
  #define  B43_TXH_PHY_ANT2		0x0100 /* Use antenna 2 */
  #define  B43_TXH_PHY_ANT3		0x0200 /* Use antenna 3 */
  #define B43_TXH_PHY_TXPWR		0xFC00 /* TX power */
  #define B43_TXH_PHY_TXPWR_SHIFT		10
  
  /* PHY TX control word 1 */
  #define B43_TXH_PHY1_BW			0x0007 /* Bandwidth */
  #define  B43_TXH_PHY1_BW_10		0x0000 /* 10 MHz */
  #define  B43_TXH_PHY1_BW_10U		0x0001 /* 10 MHz upper */
  #define  B43_TXH_PHY1_BW_20		0x0002 /* 20 MHz */
  #define  B43_TXH_PHY1_BW_20U		0x0003 /* 20 MHz upper */
  #define  B43_TXH_PHY1_BW_40		0x0004 /* 40 MHz */
  #define  B43_TXH_PHY1_BW_40DUP		0x0005 /* 50 MHz duplicate */
  #define B43_TXH_PHY1_MODE		0x0038 /* Mode */
  #define  B43_TXH_PHY1_MODE_SISO		0x0000 /* SISO */
  #define  B43_TXH_PHY1_MODE_CDD		0x0008 /* CDD */
  #define  B43_TXH_PHY1_MODE_STBC		0x0010 /* STBC */
  #define  B43_TXH_PHY1_MODE_SDM		0x0018 /* SDM */
  #define B43_TXH_PHY1_CRATE		0x0700 /* Coding rate */
  #define  B43_TXH_PHY1_CRATE_1_2		0x0000 /* 1/2 */
  #define  B43_TXH_PHY1_CRATE_2_3		0x0100 /* 2/3 */
  #define  B43_TXH_PHY1_CRATE_3_4		0x0200 /* 3/4 */
  #define  B43_TXH_PHY1_CRATE_4_5		0x0300 /* 4/5 */
  #define  B43_TXH_PHY1_CRATE_5_6		0x0400 /* 5/6 */
  #define  B43_TXH_PHY1_CRATE_7_8		0x0600 /* 7/8 */
  #define B43_TXH_PHY1_MODUL		0x3800 /* Modulation scheme */
  #define  B43_TXH_PHY1_MODUL_BPSK	0x0000 /* BPSK */
  #define  B43_TXH_PHY1_MODUL_QPSK	0x0800 /* QPSK */
  #define  B43_TXH_PHY1_MODUL_QAM16	0x1000 /* QAM16 */
  #define  B43_TXH_PHY1_MODUL_QAM64	0x1800 /* QAM64 */
  #define  B43_TXH_PHY1_MODUL_QAM256	0x2000 /* QAM256 */
  
  
  /* r351 firmware compatibility stuff. */
  static inline
  bool b43_is_old_txhdr_format(struct b43_wldev *dev)
  {
  	return (dev->fw.rev <= 351);
  }
  
  static inline
  size_t b43_txhdr_size(struct b43_wldev *dev)
  {
  	if (b43_is_old_txhdr_format(dev))
  		return 100 + sizeof(struct b43_plcp_hdr6);
  	return 104 + sizeof(struct b43_plcp_hdr6);
  }
  
  
  int b43_generate_txhdr(struct b43_wldev *dev,
  		       u8 * txhdr,
  		       struct sk_buff *skb_frag,
  		       struct ieee80211_tx_info *txctl, u16 cookie);
  
  /* Transmit Status */
  struct b43_txstatus {
  	u16 cookie;		/* The cookie from the txhdr */
  	u16 seq;		/* Sequence number */
  	u8 phy_stat;		/* PHY TX status */
  	u8 frame_count;		/* Frame transmit count */
  	u8 rts_count;		/* RTS transmit count */
  	u8 supp_reason;		/* Suppression reason */
  	/* flags */
  	u8 pm_indicated;	/* PM mode indicated to AP */
  	u8 intermediate;	/* Intermediate status notification (not final) */
  	u8 for_ampdu;		/* Status is for an AMPDU (afterburner) */
  	u8 acked;		/* Wireless ACK received */
  };
  
  /* txstatus supp_reason values */
  enum {
  	B43_TXST_SUPP_NONE,	/* Not suppressed */
  	B43_TXST_SUPP_PMQ,	/* Suppressed due to PMQ entry */
  	B43_TXST_SUPP_FLUSH,	/* Suppressed due to flush request */
  	B43_TXST_SUPP_PREV,	/* Previous fragment failed */
  	B43_TXST_SUPP_CHAN,	/* Channel mismatch */
  	B43_TXST_SUPP_LIFE,	/* Lifetime expired */
  	B43_TXST_SUPP_UNDER,	/* Buffer underflow */
  	B43_TXST_SUPP_ABNACK,	/* Afterburner NACK */
  };
  
  /* Receive header for v4 firmware. */
  struct b43_rxhdr_fw4 {
  	__le16 frame_len;	/* Frame length */
  	 PAD_BYTES(2);
  	__le16 phy_status0;	/* PHY RX Status 0 */
  	union {
  		/* RSSI for A/B/G-PHYs */
  		struct {
  			__u8 jssi;	/* PHY RX Status 1: JSSI */
  			__u8 sig_qual;	/* PHY RX Status 1: Signal Quality */
  		} __attribute__ ((__packed__));
  
  		/* RSSI for N-PHYs */
  		struct {
  			__s8 power0;	/* PHY RX Status 1: Power 0 */
  			__s8 power1;	/* PHY RX Status 1: Power 1 */
  		} __attribute__ ((__packed__));
  	} __attribute__ ((__packed__));
  	__le16 phy_status2;	/* PHY RX Status 2 */
  	__le16 phy_status3;	/* PHY RX Status 3 */
  	__le32 mac_status;	/* MAC RX status */
  	__le16 mac_time;
  	__le16 channel;
  } __attribute__ ((__packed__));
  
  /* PHY RX Status 0 */
  #define B43_RX_PHYST0_GAINCTL		0x4000 /* Gain Control */
  #define B43_RX_PHYST0_PLCPHCF		0x0200
  #define B43_RX_PHYST0_PLCPFV		0x0100
  #define B43_RX_PHYST0_SHORTPRMBL	0x0080 /* Received with Short Preamble */
  #define B43_RX_PHYST0_LCRS		0x0040
  #define B43_RX_PHYST0_ANT		0x0020 /* Antenna */
  #define B43_RX_PHYST0_UNSRATE		0x0010
  #define B43_RX_PHYST0_CLIP		0x000C
  #define B43_RX_PHYST0_CLIP_SHIFT	2
  #define B43_RX_PHYST0_FTYPE		0x0003 /* Frame type */
  #define  B43_RX_PHYST0_CCK		0x0000 /* Frame type: CCK */
  #define  B43_RX_PHYST0_OFDM		0x0001 /* Frame type: OFDM */
  #define  B43_RX_PHYST0_PRE_N		0x0002 /* Pre-standard N-PHY frame */
  #define  B43_RX_PHYST0_STD_N		0x0003 /* Standard N-PHY frame */
  
  /* PHY RX Status 2 */
  #define B43_RX_PHYST2_LNAG		0xC000 /* LNA Gain */
  #define B43_RX_PHYST2_LNAG_SHIFT	14
  #define B43_RX_PHYST2_PNAG		0x3C00 /* PNA Gain */
  #define B43_RX_PHYST2_PNAG_SHIFT	10
  #define B43_RX_PHYST2_FOFF		0x03FF /* F offset */
  
  /* PHY RX Status 3 */
  #define B43_RX_PHYST3_DIGG		0x1800 /* DIG Gain */
  #define B43_RX_PHYST3_DIGG_SHIFT	11
  #define B43_RX_PHYST3_TRSTATE		0x0400 /* TR state */
  
  /* MAC RX Status */
  #define B43_RX_MAC_RXST_VALID		0x01000000 /* PHY RXST valid */
  #define B43_RX_MAC_TKIP_MICERR		0x00100000 /* TKIP MIC error */
  #define B43_RX_MAC_TKIP_MICATT		0x00080000 /* TKIP MIC attempted */
  #define B43_RX_MAC_AGGTYPE		0x00060000 /* Aggregation type */
  #define B43_RX_MAC_AGGTYPE_SHIFT	17
  #define B43_RX_MAC_AMSDU		0x00010000 /* A-MSDU mask */
  #define B43_RX_MAC_BEACONSENT		0x00008000 /* Beacon sent flag */
  #define B43_RX_MAC_KEYIDX		0x000007E0 /* Key index */
  #define B43_RX_MAC_KEYIDX_SHIFT		5
  #define B43_RX_MAC_DECERR		0x00000010 /* Decrypt error */
  #define B43_RX_MAC_DEC			0x00000008 /* Decryption attempted */
  #define B43_RX_MAC_PADDING		0x00000004 /* Pad bytes present */
  #define B43_RX_MAC_RESP			0x00000002 /* Response frame transmitted */
  #define B43_RX_MAC_FCSERR		0x00000001 /* FCS error */
  
  /* RX channel */
  #define B43_RX_CHAN_40MHZ		0x1000 /* 40 Mhz channel width */
  #define B43_RX_CHAN_5GHZ		0x0800 /* 5 Ghz band */
  #define B43_RX_CHAN_ID			0x07F8 /* Channel ID */
  #define B43_RX_CHAN_ID_SHIFT		3
  #define B43_RX_CHAN_PHYTYPE		0x0007 /* PHY type */
  
  
  u8 b43_plcp_get_ratecode_cck(const u8 bitrate);
  u8 b43_plcp_get_ratecode_ofdm(const u8 bitrate);
  
  void b43_generate_plcp_hdr(struct b43_plcp_hdr4 *plcp,
  			   const u16 octets, const u8 bitrate);
  
  void b43_rx(struct b43_wldev *dev, struct sk_buff *skb, const void *_rxhdr);
  
  void b43_handle_txstatus(struct b43_wldev *dev,
  			 const struct b43_txstatus *status);
  bool b43_fill_txstatus_report(struct b43_wldev *dev,
  			      struct ieee80211_tx_info *report,
  			      const struct b43_txstatus *status);
  
  void b43_tx_suspend(struct b43_wldev *dev);
  void b43_tx_resume(struct b43_wldev *dev);
  
  
  /* Helper functions for converting the key-table index from "firmware-format"
   * to "raw-format" and back. The firmware API changed for this at some revision.
   * We need to account for that here. */
  static inline int b43_new_kidx_api(struct b43_wldev *dev)
  {
  	/* FIXME: Not sure the change was at rev 351 */
  	return (dev->fw.rev >= 351);
  }
  static inline u8 b43_kidx_to_fw(struct b43_wldev *dev, u8 raw_kidx)
  {
  	u8 firmware_kidx;
  	if (b43_new_kidx_api(dev)) {
  		firmware_kidx = raw_kidx;
  	} else {
  		if (raw_kidx >= 4)	/* Is per STA key? */
  			firmware_kidx = raw_kidx - 4;
  		else
  			firmware_kidx = raw_kidx;	/* TX default key */
  	}
  	return firmware_kidx;
  }
  static inline u8 b43_kidx_to_raw(struct b43_wldev *dev, u8 firmware_kidx)
  {
  	u8 raw_kidx;
  	if (b43_new_kidx_api(dev))
  		raw_kidx = firmware_kidx;
  	else
  		raw_kidx = firmware_kidx + 4;	/* RX default keys or per STA keys */
  	return raw_kidx;
  }
  
  #endif /* B43_XMIT_H_ */
  