drivers/net/wireless/zd1211rw/zd_ieee80211.h

   1 #ifndef _ZD_IEEE80211_H
   2 #define _ZD_IEEE80211_H
   3
   4 #include <net/ieee80211.h>
   5
   6 /* Additional definitions from the standards.
   7  */
   8
   9 #define ZD_REGDOMAIN_FCC        0x10
  10 #define ZD_REGDOMAIN_IC         0x20
  11 #define ZD_REGDOMAIN_ETSI       0x30
  12 #define ZD_REGDOMAIN_SPAIN      0x31
  13 #define ZD_REGDOMAIN_FRANCE     0x32
  14 #define ZD_REGDOMAIN_JAPAN_ADD  0x40
  15 #define ZD_REGDOMAIN_JAPAN      0x41
  16
  17 enum {
  18         MIN_CHANNEL24 = 1,
  19         MAX_CHANNEL24 = 14,
  20 };
  21
  22 struct channel_range {
  23         u8 start;
  24         u8 end; /* exclusive (channel must be less than end) */
  25 };
  26
  27 struct iw_freq;
  28
  29 int zd_geo_init(struct ieee80211_device *ieee, u8 regdomain);
  30
  31 const struct channel_range *zd_channel_range(u8 regdomain);
  32 int zd_regdomain_supports_channel(u8 regdomain, u8 channel);
  33 int zd_regdomain_supported(u8 regdomain);
  34
  35 /* for 2.4 GHz band */
  36 int zd_channel_to_freq(struct iw_freq *freq, u8 channel);
  37 int zd_find_channel(u8 *channel, const struct iw_freq *freq);
  38
  39 #define ZD_PLCP_SERVICE_LENGTH_EXTENSION 0x80
  40
  41 struct ofdm_plcp_header {
  42         u8 prefix[3];
  43         __le16 service;
  44 } __attribute__((packed));
  45
  46 static inline u8 zd_ofdm_plcp_header_rate(const struct ofdm_plcp_header *header)
  47 {
  48         return header->prefix[0] & 0xf;
  49 }
  50
  51 /* The following defines give the encoding of the 4-bit rate field in the
  52  * OFDM (802.11a/802.11g) PLCP header. Notify that these values are used to
  53  * define the zd-rate values for OFDM.
  54  *
  55  * See the struct zd_ctrlset definition in zd_mac.h.
  56  */
  57 #define ZD_OFDM_PLCP_RATE_6M            0xb
  58 #define ZD_OFDM_PLCP_RATE_9M            0xf
  59 #define ZD_OFDM_PLCP_RATE_12M   0xa
  60 #define ZD_OFDM_PLCP_RATE_18M   0xe
  61 #define ZD_OFDM_PLCP_RATE_24M   0x9
  62 #define ZD_OFDM_PLCP_RATE_36M   0xd
  63 #define ZD_OFDM_PLCP_RATE_48M   0x8
  64 #define ZD_OFDM_PLCP_RATE_54M   0xc
  65
  66 struct cck_plcp_header {
  67         u8 signal;
  68         u8 service;
  69         __le16 length;
  70         __le16 crc16;
  71 } __attribute__((packed));
  72
  73 static inline u8 zd_cck_plcp_header_signal(const struct cck_plcp_header *header)
  74 {
  75         return header->signal;
  76 }
  77
  78 /* These defines give the encodings of the signal field in the 802.11b PLCP
  79  * header. The signal field gives the bit rate of the following packet. Even
  80  * if technically wrong we use CCK here also for the 1 MBit/s and 2 MBit/s
  81  * rate to stay consistent with Zydas and our use of the term.
  82  *
  83  * Notify that these values are *not* used in the zd-rates.
  84  */
  85 #define ZD_CCK_PLCP_SIGNAL_1M   0x0a
  86 #define ZD_CCK_PLCP_SIGNAL_2M   0x14
  87 #define ZD_CCK_PLCP_SIGNAL_5M5  0x37
  88 #define ZD_CCK_PLCP_SIGNAL_11M  0x6e
  89
  90 enum ieee80211_std {
  91         IEEE80211B = 0x01,
  92         IEEE80211A = 0x02,
  93         IEEE80211G = 0x04,
  94 };
  95
  96 #endif /* _ZD_IEEE80211_H */