LXR linux/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 */
  24struct 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_ENC           0x0003 /* Data frame encoding */
  71#define B43legacy_TX4_PHY_ENC_CCK       0x0000 /* CCK */
  72#define B43legacy_TX4_PHY_ENC_OFDM      0x0001 /* Data frame rate type */
  73#define B43legacy_TX4_PHY_SHORTPRMBL    0x0010 /* Use short preamble */
  74#define B43legacy_TX4_PHY_ANT           0x03C0 /* Antenna selection */
  75#define  B43legacy_TX4_PHY_ANT0         0x0000 /* Use antenna 0 */
  76#define  B43legacy_TX4_PHY_ANT1         0x0100 /* Use antenna 1 */
  77#define  B43legacy_TX4_PHY_ANTLAST      0x0300 /* Use last used antenna */
  78
  79
  80
  81int b43legacy_generate_txhdr(struct b43legacy_wldev *dev,
  82                              u8 *txhdr,
  83                              const unsigned char *fragment_data,
  84                              unsigned int fragment_len,
  85                              struct ieee80211_tx_info *info,
  86                              u16 cookie);
  87
  88
  89/* Transmit Status */
  90struct b43legacy_txstatus {
  91        u16 cookie;     /* The cookie from the txhdr */
  92        u16 seq;        /* Sequence number */
  93        u8 phy_stat;    /* PHY TX status */
  94        u8 frame_count; /* Frame transmit count */
  95        u8 rts_count;   /* RTS transmit count */
  96        u8 supp_reason; /* Suppression reason */
  97        /* flags */
  98        u8 pm_indicated;/* PM mode indicated to AP */
  99        u8 intermediate;/* Intermediate status notification */
 100        u8 for_ampdu;   /* Status is for an AMPDU (afterburner) */
 101        u8 acked;       /* Wireless ACK received */
 102};
 103
 104/* txstatus supp_reason values */
 105enum {
 106        B43legacy_TXST_SUPP_NONE,       /* Not suppressed */
 107        B43legacy_TXST_SUPP_PMQ,        /* Suppressed due to PMQ entry */
 108        B43legacy_TXST_SUPP_FLUSH,      /* Suppressed due to flush request */
 109        B43legacy_TXST_SUPP_PREV,       /* Previous fragment failed */
 110        B43legacy_TXST_SUPP_CHAN,       /* Channel mismatch */
 111        B43legacy_TXST_SUPP_LIFE,       /* Lifetime expired */
 112        B43legacy_TXST_SUPP_UNDER,      /* Buffer underflow */
 113        B43legacy_TXST_SUPP_ABNACK,     /* Afterburner NACK */
 114};
 115
 116/* Transmit Status as received through DMA/PIO on old chips */
 117struct b43legacy_hwtxstatus {
 118        PAD_BYTES(4);
 119        __le16 cookie;
 120        u8 flags;
 121        u8 count;
 122        PAD_BYTES(2);
 123        __le16 seq;
 124        u8 phy_stat;
 125        PAD_BYTES(1);
 126} __attribute__((__packed__));
 127
 128
 129/* Receive header for v3 firmware. */
 130struct b43legacy_rxhdr_fw3 {
 131        __le16 frame_len;       /* Frame length */
 132        PAD_BYTES(2);
 133        __le16 phy_status0;     /* PHY RX Status 0 */
 134        __u8 jssi;              /* PHY RX Status 1: JSSI */
 135        __u8 sig_qual;          /* PHY RX Status 1: Signal Quality */
 136        PAD_BYTES(2);           /* PHY RX Status 2 */
 137        __le16 phy_status3;     /* PHY RX Status 3 */
 138        __le16 mac_status;      /* MAC RX status */
 139        __le16 mac_time;
 140        __le16 channel;
 141} __attribute__((__packed__));
 142
 143
 144/* PHY RX Status 0 */
 145#define B43legacy_RX_PHYST0_GAINCTL     0x4000 /* Gain Control */
 146#define B43legacy_RX_PHYST0_PLCPHCF     0x0200
 147#define B43legacy_RX_PHYST0_PLCPFV      0x0100
 148#define B43legacy_RX_PHYST0_SHORTPRMBL  0x0080 /* Recvd with Short Preamble */
 149#define B43legacy_RX_PHYST0_LCRS        0x0040
 150#define B43legacy_RX_PHYST0_ANT         0x0020 /* Antenna */
 151#define B43legacy_RX_PHYST0_UNSRATE     0x0010
 152#define B43legacy_RX_PHYST0_CLIP        0x000C
 153#define B43legacy_RX_PHYST0_CLIP_SHIFT  2
 154#define B43legacy_RX_PHYST0_FTYPE       0x0003 /* Frame type */
 155#define  B43legacy_RX_PHYST0_CCK        0x0000 /* Frame type: CCK */
 156#define  B43legacy_RX_PHYST0_OFDM       0x0001 /* Frame type: OFDM */
 157#define  B43legacy_RX_PHYST0_PRE_N      0x0002 /* Pre-standard N-PHY frame */
 158#define  B43legacy_RX_PHYST0_STD_N      0x0003 /* Standard N-PHY frame */
 159
 160/* PHY RX Status 2 */
 161#define B43legacy_RX_PHYST2_LNAG        0xC000 /* LNA Gain */
 162#define B43legacy_RX_PHYST2_LNAG_SHIFT  14
 163#define B43legacy_RX_PHYST2_PNAG        0x3C00 /* PNA Gain */
 164#define B43legacy_RX_PHYST2_PNAG_SHIFT  10
 165#define B43legacy_RX_PHYST2_FOFF        0x03FF /* F offset */
 166
 167/* PHY RX Status 3 */
 168#define B43legacy_RX_PHYST3_DIGG        0x1800 /* DIG Gain */
 169#define B43legacy_RX_PHYST3_DIGG_SHIFT  11
 170#define B43legacy_RX_PHYST3_TRSTATE     0x0400 /* TR state */
 171
 172/* MAC RX Status */
 173#define B43legacy_RX_MAC_BEACONSENT     0x00008000 /* Beacon send flag */
 174#define B43legacy_RX_MAC_KEYIDX         0x000007E0 /* Key index */
 175#define B43legacy_RX_MAC_KEYIDX_SHIFT   5
 176#define B43legacy_RX_MAC_DECERR         0x00000010 /* Decrypt error */
 177#define B43legacy_RX_MAC_DEC            0x00000008 /* Decryption attempted */
 178#define B43legacy_RX_MAC_PADDING        0x00000004 /* Pad bytes present */
 179#define B43legacy_RX_MAC_RESP           0x00000002 /* Response frame xmitted */
 180#define B43legacy_RX_MAC_FCSERR         0x00000001 /* FCS error */
 181
 182/* RX channel */
 183#define B43legacy_RX_CHAN_GAIN          0xFC00 /* Gain */
 184#define B43legacy_RX_CHAN_GAIN_SHIFT    10
 185#define B43legacy_RX_CHAN_ID            0x03FC /* Channel ID */
 186#define B43legacy_RX_CHAN_ID_SHIFT      2
 187#define B43legacy_RX_CHAN_PHYTYPE       0x0003 /* PHY type */
 188
 189
 190
 191u8 b43legacy_plcp_get_ratecode_cck(const u8 bitrate);
 192u8 b43legacy_plcp_get_ratecode_ofdm(const u8 bitrate);
 193
 194void b43legacy_generate_plcp_hdr(struct b43legacy_plcp_hdr4 *plcp,
 195                               const u16 octets, const u8 bitrate);
 196
 197void b43legacy_rx(struct b43legacy_wldev *dev,
 198                struct sk_buff *skb,
 199                const void *_rxhdr);
 200
 201void b43legacy_handle_txstatus(struct b43legacy_wldev *dev,
 202                               const struct b43legacy_txstatus *status);
 203
 204void b43legacy_handle_hwtxstatus(struct b43legacy_wldev *dev,
 205                                 const struct b43legacy_hwtxstatus *hw);
 206
 207void b43legacy_tx_suspend(struct b43legacy_wldev *dev);
 208void b43legacy_tx_resume(struct b43legacy_wldev *dev);
 209
 210
 211#define B43legacy_NR_QOSPARMS   22
 212enum {
 213        B43legacy_QOSPARM_TXOP = 0,
 214        B43legacy_QOSPARM_CWMIN,
 215        B43legacy_QOSPARM_CWMAX,
 216        B43legacy_QOSPARM_CWCUR,
 217        B43legacy_QOSPARM_AIFS,
 218        B43legacy_QOSPARM_BSLOTS,
 219        B43legacy_QOSPARM_REGGAP,
 220        B43legacy_QOSPARM_STATUS,
 221};
 222
 223void b43legacy_qos_init(struct b43legacy_wldev *dev);
 224
 225
 226/* Helper functions for converting the key-table index from "firmware-format"
 227 * to "raw-format" and back. The firmware API changed for this at some revision.
 228 * We need to account for that here. */
 229static inline
 230int b43legacy_new_kidx_api(struct b43legacy_wldev *dev)
 231{
 232        /* FIXME: Not sure the change was at rev 351 */
 233        return (dev->fw.rev >= 351);
 234}
 235static inline
 236u8 b43legacy_kidx_to_fw(struct b43legacy_wldev *dev, u8 raw_kidx)
 237{
 238        u8 firmware_kidx;
 239        if (b43legacy_new_kidx_api(dev))
 240                firmware_kidx = raw_kidx;
 241        else {
 242                if (raw_kidx >= 4) /* Is per STA key? */
 243                        firmware_kidx = raw_kidx - 4;
 244                else
 245                        firmware_kidx = raw_kidx; /* TX default key */
 246        }
 247        return firmware_kidx;
 248}
 249static inline
 250u8 b43legacy_kidx_to_raw(struct b43legacy_wldev *dev, u8 firmware_kidx)
 251{
 252        u8 raw_kidx;
 253        if (b43legacy_new_kidx_api(dev))
 254                raw_kidx = firmware_kidx;
 255        else
 256                /* RX default keys or per STA keys */
 257                raw_kidx = firmware_kidx + 4;
 258        return raw_kidx;
 259}
 260
 261#endif /* B43legacy_XMIT_H_ */
 262