diff options
Diffstat (limited to 'drivers/net/wireless/b43/xmit.h')
| -rw-r--r-- | drivers/net/wireless/b43/xmit.h | 416 |
1 files changed, 416 insertions, 0 deletions
diff --git a/drivers/net/wireless/b43/xmit.h b/drivers/net/wireless/b43/xmit.h new file mode 100644 index 000000000..ba6115308 --- /dev/null +++ b/drivers/net/wireless/b43/xmit.h @@ -0,0 +1,416 @@ +#ifndef B43_XMIT_H_ +#define B43_XMIT_H_ + +#include "main.h" +#include <net/mac80211.h> + + +#define _b43_declare_plcp_hdr(size) \ + struct b43_plcp_hdr##size { \ + union { \ + __le32 data; \ + __u8 raw[size]; \ + } __packed; \ + } __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 { + /* Tested with 598.314, 644.1001 and 666.2 */ + 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 */ + __le16 max_n_mpdus; + __le16 max_a_bytes_mrt; + __le16 max_a_bytes_fbr; + __le16 min_m_bytes; + 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 */ + } format_598 __packed; + + /* Tested with 410.2160, 478.104 and 508.* */ + 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 */ + } format_410 __packed; + + /* Tested with 351.126 */ + 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 */ + } format_351 __packed; + + } __packed; +} __packed; + +struct b43_tx_legacy_rate_phy_ctl_entry { + u8 bitrate; + u16 coding_rate; + u16 modulation; +}; + +/* MAC TX control */ +#define B43_TXH_MAC_RTS_FB_SHORTPRMBL 0x80000000 /* RTS fallback preamble */ +#define B43_TXH_MAC_RTS_SHORTPRMBL 0x40000000 /* RTS main rate preamble */ +#define B43_TXH_MAC_FB_SHORTPRMBL 0x20000000 /* Main fallback preamble */ +#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_ALT_TXPWR 0x00080000 /* Use alternate txpwr defined at loc. M_ALT_TXPWR_IDX */ +#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_HT 0x02 /* HT */ +#define B43_TXH_EFT_FB_VHT 0x03 /* VHT */ +#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_HT 0x08 /* HT */ +#define B43_TXH_EFT_RTS_VHT 0x0C /* VHT */ +#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_HT 0x20 /* HT */ +#define B43_TXH_EFT_RTSFB_VHT 0x30 /* VHT */ + +/* 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_HT 0x0002 /* HT */ +#define B43_TXH_PHY_ENC_VHT 0x0003 /* VHT */ +#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 /* 40 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 */ + + +static inline +size_t b43_txhdr_size(struct b43_wldev *dev) +{ + switch (dev->fw.hdr_format) { + case B43_FW_HDR_598: + return 112 + sizeof(struct b43_plcp_hdr6); + case B43_FW_HDR_410: + return 104 + sizeof(struct b43_plcp_hdr6); + case B43_FW_HDR_351: + return 100 + sizeof(struct b43_plcp_hdr6); + } + return 0; +} + + +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 */ + } __packed; + + /* RSSI for N-PHYs */ + struct { + __s8 power0; /* PHY RX Status 1: Power 0 */ + __s8 power1; /* PHY RX Status 1: Power 1 */ + } __packed; + } __packed; + union { + /* HT-PHY */ + struct { + PAD_BYTES(1); + __s8 phy_ht_power0; + } __packed; + + /* RSSI for N-PHYs */ + struct { + __s8 power2; + PAD_BYTES(1); + } __packed; + + __le16 phy_status2; /* PHY RX Status 2 */ + } __packed; + union { + /* HT-PHY */ + struct { + __s8 phy_ht_power1; + __s8 phy_ht_power2; + } __packed; + + __le16 phy_status3; /* PHY RX Status 3 */ + } __packed; + union { + /* Tested with 598.314, 644.1001 and 666.2 */ + struct { + __le16 phy_status4; /* PHY RX Status 4 */ + __le16 phy_status5; /* PHY RX Status 5 */ + __le32 mac_status; /* MAC RX status */ + __le16 mac_time; + __le16 channel; + } format_598 __packed; + + /* Tested with 351.126, 410.2160, 478.104 and 508.* */ + struct { + __le32 mac_status; /* MAC RX status */ + __le16 mac_time; + __le16 channel; + } format_351 __packed; + } __packed; +} __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; +} + +/* struct b43_private_tx_info - TX info private to b43. + * The structure is placed in (struct ieee80211_tx_info *)->rate_driver_data + * + * @bouncebuffer: DMA Bouncebuffer (if used) + */ +struct b43_private_tx_info { + void *bouncebuffer; +}; + +static inline struct b43_private_tx_info * +b43_get_priv_tx_info(struct ieee80211_tx_info *info) +{ + BUILD_BUG_ON(sizeof(struct b43_private_tx_info) > + sizeof(info->rate_driver_data)); + return (struct b43_private_tx_info *)info->rate_driver_data; +} + +#endif /* B43_XMIT_H_ */ |