drivers/net/wireless/b43/xmit.h - linux - Git at Google

 #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,
 		       const unsigned char *fragment_data,
 		       unsigned int fragment_len,
 		       const struct ieee80211_tx_control *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 */
 	__u8 jssi;		/* PHY RX Status 1: JSSI */
 	__u8 sig_qual;		/* PHY RX Status 1: Signal Quality */
 	__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 ieee80211_tx_status *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_ */
	#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,
	const unsigned char *fragment_data,
	unsigned int fragment_len,
	const struct ieee80211_tx_control *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 */
	__u8 jssi; /* PHY RX Status 1: JSSI */
	__u8 sig_qual; /* PHY RX Status 1: Signal Quality */
	__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 ieee80211_tx_status *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_ */