drivers/net/wireless/b43legacy/xmit.h

   1 #ifndef B43legacy_XMIT_H_
   2 #define B43legacy_XMIT_H_
   3
   4 #include "main.h"
   5
   6
   7 #define _b43legacy_declare_plcp_hdr(size)       \
   8         struct b43legacy_plcp_hdr##size {       \
   9                 union {                         \
  10                         __le32 data;            \
  11                         __u8 raw[size];         \
  12                 } __attribute__((__packed__));  \
  13         } __attribute__((__packed__))
  14
  15 /* struct b43legacy_plcp_hdr4 */
  16 _b43legacy_declare_plcp_hdr(4);
  17 /* struct b43legacy_plcp_hdr6 */
  18 _b43legacy_declare_plcp_hdr(6);
  19
  20 #undef _b43legacy_declare_plcp_hdr
  21
  22
  23 /* TX header for v3 firmware */
  24 struct b43legacy_txhdr_fw3 {
  25         __le32 mac_ctl;                         /* MAC TX control */
  26         __le16 mac_frame_ctl;                   /* Copy of the FrameControl */
  27         __le16 tx_fes_time_norm;                /* TX FES Time Normal */
  28         __le16 phy_ctl;                         /* PHY TX control */
  29         __u8 iv[16];                            /* Encryption IV */
  30         __u8 tx_receiver[6];                    /* TX Frame Receiver address */
  31         __le16 tx_fes_time_fb;                  /* TX FES Time Fallback */
  32         struct b43legacy_plcp_hdr4 rts_plcp_fb; /* RTS fallback PLCP */
  33         __le16 rts_dur_fb;                      /* RTS fallback duration */
  34         struct b43legacy_plcp_hdr4 plcp_fb;     /* Fallback PLCP */
  35         __le16 dur_fb;                          /* Fallback duration */
  36         PAD_BYTES(2);
  37         __le16 cookie;
  38         __le16 unknown_scb_stuff;
  39         struct b43legacy_plcp_hdr6 rts_plcp;    /* RTS PLCP */
  40         __u8 rts_frame[18];                     /* The RTS frame (if used) */
  41         struct b43legacy_plcp_hdr6 plcp;
  42 } __attribute__((__packed__));
  43
  44 /* MAC TX control */
  45 #define B43legacy_TX4_MAC_KEYIDX        0x0FF00000 /* Security key index */
  46 #define B43legacy_TX4_MAC_KEYIDX_SHIFT  20
  47 #define B43legacy_TX4_MAC_KEYALG        0x00070000 /* Security key algorithm */
  48 #define B43legacy_TX4_MAC_KEYALG_SHIFT  16
  49 #define B43legacy_TX4_MAC_LIFETIME      0x00001000
  50 #define B43legacy_TX4_MAC_FRAMEBURST    0x00000800
  51 #define B43legacy_TX4_MAC_SENDCTS       0x00000400
  52 #define B43legacy_TX4_MAC_AMPDU         0x00000300
  53 #define B43legacy_TX4_MAC_AMPDU_SHIFT   8
  54 #define B43legacy_TX4_MAC_CTSFALLBACKOFDM       0x00000200
  55 #define B43legacy_TX4_MAC_FALLBACKOFDM  0x00000100
  56 #define B43legacy_TX4_MAC_5GHZ          0x00000080
  57 #define B43legacy_TX4_MAC_IGNPMQ        0x00000020
  58 #define B43legacy_TX4_MAC_HWSEQ         0x00000010 /* Use Hardware Seq No */
  59 #define B43legacy_TX4_MAC_STMSDU        0x00000008 /* Start MSDU */
  60 #define B43legacy_TX4_MAC_SENDRTS       0x00000004
  61 #define B43legacy_TX4_MAC_LONGFRAME     0x00000002
  62 #define B43legacy_TX4_MAC_ACK           0x00000001
  63
  64 /* Extra Frame Types */
  65 #define B43legacy_TX4_EFT_FBOFDM        0x0001 /* Data frame fb rate type */
  66 #define B43legacy_TX4_EFT_RTSOFDM       0x0004 /* RTS/CTS rate type */
  67 #define B43legacy_TX4_EFT_RTSFBOFDM     0x0010 /* RTS/CTS fallback rate type */
  68
  69 /* PHY TX control word */
  70 #define B43legacy_TX4_PHY_OFDM          0x0001 /* Data frame rate type */
  71 #define B43legacy_TX4_PHY_SHORTPRMBL    0x0010 /* Use short preamble */
  72 #define B43legacy_TX4_PHY_ANT           0x03C0 /* Antenna selection */
  73 #define  B43legacy_TX4_PHY_ANT0         0x0000 /* Use antenna 0 */
  74 #define  B43legacy_TX4_PHY_ANT1         0x0100 /* Use antenna 1 */
  75 #define  B43legacy_TX4_PHY_ANTLAST      0x0300 /* Use last used antenna */
  76
  77
  78
  79 int b43legacy_generate_txhdr(struct b43legacy_wldev *dev,
  80                               u8 *txhdr,
  81                               const unsigned char *fragment_data,
  82                               unsigned int fragment_len,
  83                               const struct ieee80211_tx_control *txctl,
  84                               u16 cookie);
  85
  86
  87 /* Transmit Status */
  88 struct b43legacy_txstatus {
  89         u16 cookie;     /* The cookie from the txhdr */
  90         u16 seq;        /* Sequence number */
  91         u8 phy_stat;    /* PHY TX status */
  92         u8 frame_count; /* Frame transmit count */
  93         u8 rts_count;   /* RTS transmit count */
  94         u8 supp_reason; /* Suppression reason */
  95         /* flags */
  96         u8 pm_indicated;/* PM mode indicated to AP */
  97         u8 intermediate;/* Intermediate status notification */
  98         u8 for_ampdu;   /* Status is for an AMPDU (afterburner) */
  99         u8 acked;       /* Wireless ACK received */
 100 };
 101
 102 /* txstatus supp_reason values */
 103 enum {
 104         B43legacy_TXST_SUPP_NONE,       /* Not suppressed */
 105         B43legacy_TXST_SUPP_PMQ,        /* Suppressed due to PMQ entry */
 106         B43legacy_TXST_SUPP_FLUSH,      /* Suppressed due to flush request */
 107         B43legacy_TXST_SUPP_PREV,       /* Previous fragment failed */
 108         B43legacy_TXST_SUPP_CHAN,       /* Channel mismatch */
 109         B43legacy_TXST_SUPP_LIFE,       /* Lifetime expired */
 110         B43legacy_TXST_SUPP_UNDER,      /* Buffer underflow */
 111         B43legacy_TXST_SUPP_ABNACK,     /* Afterburner NACK */
 112 };
 113
 114 /* Transmit Status as received through DMA/PIO on old chips */
 115 struct b43legacy_hwtxstatus {
 116         PAD_BYTES(4);
 117         __le16 cookie;
 118         u8 flags;
 119         u8 count;
 120         PAD_BYTES(2);
 121         __le16 seq;
 122         u8 phy_stat;
 123         PAD_BYTES(1);
 124 } __attribute__((__packed__));
 125
 126
 127 /* Receive header for v3 firmware. */
 128 struct b43legacy_rxhdr_fw3 {
 129         __le16 frame_len;       /* Frame length */
 130         PAD_BYTES(2);
 131         __le16 phy_status0;     /* PHY RX Status 0 */
 132         __u8 jssi;              /* PHY RX Status 1: JSSI */
 133         __u8 sig_qual;          /* PHY RX Status 1: Signal Quality */
 134         PAD_BYTES(2);           /* PHY RX Status 2 */
 135         __le16 phy_status3;     /* PHY RX Status 3 */
 136         __le16 mac_status;      /* MAC RX status */
 137         __le16 mac_time;
 138         __le16 channel;
 139 } __attribute__((__packed__));
 140
 141
 142 /* PHY RX Status 0 */
 143 #define B43legacy_RX_PHYST0_GAINCTL     0x4000 /* Gain Control */
 144 #define B43legacy_RX_PHYST0_PLCPHCF     0x0200
 145 #define B43legacy_RX_PHYST0_PLCPFV      0x0100
 146 #define B43legacy_RX_PHYST0_SHORTPRMBL  0x0080 /* Recvd with Short Preamble */
 147 #define B43legacy_RX_PHYST0_LCRS        0x0040
 148 #define B43legacy_RX_PHYST0_ANT         0x0020 /* Antenna */
 149 #define B43legacy_RX_PHYST0_UNSRATE     0x0010
 150 #define B43legacy_RX_PHYST0_CLIP        0x000C
 151 #define B43legacy_RX_PHYST0_CLIP_SHIFT  2
 152 #define B43legacy_RX_PHYST0_FTYPE       0x0003 /* Frame type */
 153 #define  B43legacy_RX_PHYST0_CCK        0x0000 /* Frame type: CCK */
 154 #define  B43legacy_RX_PHYST0_OFDM       0x0001 /* Frame type: OFDM */
 155 #define  B43legacy_RX_PHYST0_PRE_N      0x0002 /* Pre-standard N-PHY frame */
 156 #define  B43legacy_RX_PHYST0_STD_N      0x0003 /* Standard N-PHY frame */
 157
 158 /* PHY RX Status 2 */
 159 #define B43legacy_RX_PHYST2_LNAG        0xC000 /* LNA Gain */
 160 #define B43legacy_RX_PHYST2_LNAG_SHIFT  14
 161 #define B43legacy_RX_PHYST2_PNAG        0x3C00 /* PNA Gain */
 162 #define B43legacy_RX_PHYST2_PNAG_SHIFT  10
 163 #define B43legacy_RX_PHYST2_FOFF        0x03FF /* F offset */
 164
 165 /* PHY RX Status 3 */
 166 #define B43legacy_RX_PHYST3_DIGG        0x1800 /* DIG Gain */
 167 #define B43legacy_RX_PHYST3_DIGG_SHIFT  11
 168 #define B43legacy_RX_PHYST3_TRSTATE     0x0400 /* TR state */
 169
 170 /* MAC RX Status */
 171 #define B43legacy_RX_MAC_BEACONSENT     0x00008000 /* Beacon send flag */
 172 #define B43legacy_RX_MAC_KEYIDX         0x000007E0 /* Key index */
 173 #define B43legacy_RX_MAC_KEYIDX_SHIFT   5
 174 #define B43legacy_RX_MAC_DECERR         0x00000010 /* Decrypt error */
 175 #define B43legacy_RX_MAC_DEC            0x00000008 /* Decryption attempted */
 176 #define B43legacy_RX_MAC_PADDING        0x00000004 /* Pad bytes present */
 177 #define B43legacy_RX_MAC_RESP           0x00000002 /* Response frame xmitted */
 178 #define B43legacy_RX_MAC_FCSERR         0x00000001 /* FCS error */
 179
 180 /* RX channel */
 181 #define B43legacy_RX_CHAN_GAIN          0xFC00 /* Gain */
 182 #define B43legacy_RX_CHAN_GAIN_SHIFT    10
 183 #define B43legacy_RX_CHAN_ID            0x03FC /* Channel ID */
 184 #define B43legacy_RX_CHAN_ID_SHIFT      2
 185 #define B43legacy_RX_CHAN_PHYTYPE       0x0003 /* PHY type */
 186
 187
 188
 189 u8 b43legacy_plcp_get_ratecode_cck(const u8 bitrate);
 190 u8 b43legacy_plcp_get_ratecode_ofdm(const u8 bitrate);
 191
 192 void b43legacy_generate_plcp_hdr(struct b43legacy_plcp_hdr4 *plcp,
 193                                const u16 octets, const u8 bitrate);
 194
 195 void b43legacy_rx(struct b43legacy_wldev *dev,
 196                 struct sk_buff *skb,
 197                 const void *_rxhdr);
 198
 199 void b43legacy_handle_txstatus(struct b43legacy_wldev *dev,
 200                                const struct b43legacy_txstatus *status);
 201
 202 void b43legacy_handle_hwtxstatus(struct b43legacy_wldev *dev,
 203                                  const struct b43legacy_hwtxstatus *hw);
 204
 205 void b43legacy_tx_suspend(struct b43legacy_wldev *dev);
 206 void b43legacy_tx_resume(struct b43legacy_wldev *dev);
 207
 208
 209 #define B43legacy_NR_QOSPARMS   22
 210 enum {
 211         B43legacy_QOSPARM_TXOP = 0,
 212         B43legacy_QOSPARM_CWMIN,
 213         B43legacy_QOSPARM_CWMAX,
 214         B43legacy_QOSPARM_CWCUR,
 215         B43legacy_QOSPARM_AIFS,
 216         B43legacy_QOSPARM_BSLOTS,
 217         B43legacy_QOSPARM_REGGAP,
 218         B43legacy_QOSPARM_STATUS,
 219 };
 220
 221 void b43legacy_qos_init(struct b43legacy_wldev *dev);
 222
 223
 224 /* Helper functions for converting the key-table index from "firmware-format"
 225  * to "raw-format" and back. The firmware API changed for this at some revision.
 226  * We need to account for that here. */
 227 static inline
 228 int b43legacy_new_kidx_api(struct b43legacy_wldev *dev)
 229 {
 230         /* FIXME: Not sure the change was at rev 351 */
 231         return (dev->fw.rev >= 351);
 232 }
 233 static inline
 234 u8 b43legacy_kidx_to_fw(struct b43legacy_wldev *dev, u8 raw_kidx)
 235 {
 236         u8 firmware_kidx;
 237         if (b43legacy_new_kidx_api(dev))
 238                 firmware_kidx = raw_kidx;
 239         else {
 240                 if (raw_kidx >= 4) /* Is per STA key? */
 241                         firmware_kidx = raw_kidx - 4;
 242                 else
 243                         firmware_kidx = raw_kidx; /* TX default key */
 244         }
 245         return firmware_kidx;
 246 }
 247 static inline
 248 u8 b43legacy_kidx_to_raw(struct b43legacy_wldev *dev, u8 firmware_kidx)
 249 {
 250         u8 raw_kidx;
 251         if (b43legacy_new_kidx_api(dev))
 252                 raw_kidx = firmware_kidx;
 253         else
 254                 /* RX default keys or per STA keys */
 255                 raw_kidx = firmware_kidx + 4;
 256         return raw_kidx;
 257 }
 258
 259 #endif /* B43legacy_XMIT_H_ */