diff options
Diffstat (limited to 'drivers/net/wireless/b43/xmit.h')
| -rw-r--r-- | drivers/net/wireless/b43/xmit.h | 250 |
1 files changed, 250 insertions, 0 deletions
diff --git a/drivers/net/wireless/b43/xmit.h b/drivers/net/wireless/b43/xmit.h new file mode 100644 index 00000000000..03bddd25161 --- /dev/null +++ b/drivers/net/wireless/b43/xmit.h @@ -0,0 +1,250 @@ +#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_fw4 { + __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_ctl_0; /* Unused */ + __le16 phy_ctl_1; /* Unused */ + __le16 phy_ctl_rts_0; /* Unused */ + __le16 phy_ctl_rts_1; /* Unused */ + __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 */ + __le16 rts_dur_fb; /* RTS fallback duration */ + struct b43_plcp_hdr6 plcp_fb; /* Fallback PLCP */ + __le16 dur_fb; /* Fallback duration */ + __le16 mm_dur_time; /* Unused */ + __le16 mm_dur_time_fb; /* Unused */ + __le32 time_stamp; /* Timestamp */ + PAD_BYTES(2); + __le16 cookie; /* TX frame cookie */ + __le16 tx_status; /* TX status */ + struct b43_plcp_hdr6 rts_plcp; /* RTS PLCP */ + __u8 rts_frame[16]; /* The RTS frame (if used) */ + PAD_BYTES(2); + struct b43_plcp_hdr6 plcp; /* Main PLCP */ +} __attribute__ ((__packed__)); + +/* MAC TX control */ +#define B43_TX4_MAC_KEYIDX 0x0FF00000 /* Security key index */ +#define B43_TX4_MAC_KEYIDX_SHIFT 20 +#define B43_TX4_MAC_KEYALG 0x00070000 /* Security key algorithm */ +#define B43_TX4_MAC_KEYALG_SHIFT 16 +#define B43_TX4_MAC_LIFETIME 0x00001000 +#define B43_TX4_MAC_FRAMEBURST 0x00000800 +#define B43_TX4_MAC_SENDCTS 0x00000400 +#define B43_TX4_MAC_AMPDU 0x00000300 +#define B43_TX4_MAC_AMPDU_SHIFT 8 +#define B43_TX4_MAC_5GHZ 0x00000080 +#define B43_TX4_MAC_IGNPMQ 0x00000020 +#define B43_TX4_MAC_HWSEQ 0x00000010 /* Use Hardware Sequence Number */ +#define B43_TX4_MAC_STMSDU 0x00000008 /* Start MSDU */ +#define B43_TX4_MAC_SENDRTS 0x00000004 +#define B43_TX4_MAC_LONGFRAME 0x00000002 +#define B43_TX4_MAC_ACK 0x00000001 + +/* Extra Frame Types */ +#define B43_TX4_EFT_FBOFDM 0x0001 /* Data frame fallback rate type */ +#define B43_TX4_EFT_RTSOFDM 0x0004 /* RTS/CTS rate type */ +#define B43_TX4_EFT_RTSFBOFDM 0x0010 /* RTS/CTS fallback rate type */ + +/* PHY TX control word */ +#define B43_TX4_PHY_OFDM 0x0001 /* Data frame rate type */ +#define B43_TX4_PHY_SHORTPRMBL 0x0010 /* Use short preamble */ +#define B43_TX4_PHY_ANT 0x03C0 /* Antenna selection */ +#define B43_TX4_PHY_ANT0 0x0000 /* Use antenna 0 */ +#define B43_TX4_PHY_ANT1 0x0100 /* Use antenna 1 */ +#define B43_TX4_PHY_ANTLAST 0x0300 /* Use last used antenna */ + +void 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 */ +}; + +/* Transmit Status as received through DMA/PIO on old chips */ +struct b43_hwtxstatus { + PAD_BYTES(4); + __le16 cookie; + u8 flags; + u8 count; + PAD_BYTES(2); + __le16 seq; + u8 phy_stat; + PAD_BYTES(1); +} __attribute__ ((__packed__)); + +/* 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_BEACONSENT 0x00008000 /* Beacon send 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_GAIN 0xFC00 /* Gain */ +#define B43_RX_CHAN_GAIN_SHIFT 10 +#define B43_RX_CHAN_ID 0x03FC /* Channel ID */ +#define B43_RX_CHAN_ID_SHIFT 2 +#define B43_RX_CHAN_PHYTYPE 0x0003 /* 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); + +void b43_handle_hwtxstatus(struct b43_wldev *dev, + const struct b43_hwtxstatus *hw); + +void b43_tx_suspend(struct b43_wldev *dev); +void b43_tx_resume(struct b43_wldev *dev); + +#define B43_NR_QOSPARMS 22 +enum { + B43_QOSPARM_TXOP = 0, + B43_QOSPARM_CWMIN, + B43_QOSPARM_CWMAX, + B43_QOSPARM_CWCUR, + B43_QOSPARM_AIFS, + B43_QOSPARM_BSLOTS, + B43_QOSPARM_REGGAP, + B43_QOSPARM_STATUS, +}; +void b43_qos_init(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_ */ |