package/iw/patches/401-antenna.patch

   1 iw: Add antenna configuration commands
   2
   3 From: Bruno Randolf <br1@einfach.org>
   4
   5 Add command to set the antenna configuration (iw phyX set antenna ...) and
   6 include antenna setting in wiphy information (iw phyX info).
   7
   8 iw phyX set antenna all | <bitmap> | <tx bitmap> <rx bitmap>
   9
  10 Signed-off-by: Bruno Randolf <br1@einfach.org>
  11
  12 v8:  Simplfied option parser as requested.
  13 ---
  14  info.c |    7 +++++++
  15  phy.c  |   39 +++++++++++++++++++++++++++++++++++++++
  16  2 files changed, 46 insertions(+), 0 deletions(-)
  17
  18 --- a/info.c
  19 +++ b/info.c
  20 @@ -168,6 +168,13 @@ static int print_phy_handler(struct nl_m
  21                 printf("\tCoverage class: %d (up to %dm)\n", coverage, 450 * coverage);
  22         }
  23
  24 +       if (tb_msg[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
  25 +           tb_msg[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
  26 +               printf("\tAntenna: TX %#x RX %#x\n",
  27 +                      nla_get_u32(tb_msg[NL80211_ATTR_WIPHY_ANTENNA_TX]),
  28 +                      nla_get_u32(tb_msg[NL80211_ATTR_WIPHY_ANTENNA_RX]));
  29 +       }
  30 +
  31         if (tb_msg[NL80211_ATTR_SUPPORTED_IFTYPES]) {
  32                 printf("\tSupported interface modes:\n");
  33                 nla_for_each_nested(nl_mode, tb_msg[NL80211_ATTR_SUPPORTED_IFTYPES], rem_mode)
  34 --- a/phy.c
  35 +++ b/phy.c
  36 @@ -307,3 +307,51 @@ COMMAND(set, txpower, "<auto|fixed|limit
  37  COMMAND(set, txpower, "<auto|fixed|limit> [<tx power in mBm>]",
  38         NL80211_CMD_SET_WIPHY, 0, CIB_NETDEV, handle_txpower,
  39         "Specify transmit power level and setting type.");
  40 +
  41 +static int handle_antenna(struct nl80211_state *state,
  42 +                         struct nl_cb *cb,
  43 +                         struct nl_msg *msg,
  44 +                         int argc, char **argv)
  45 +{
  46 +       char *end;
  47 +       uint32_t tx_ant = 0, rx_ant = 0;
  48 +
  49 +       if (argc == 1) {
  50 +               if (strcmp(argv[0], "all") == 0)
  51 +                       tx_ant = rx_ant = 0xffffffff;
  52 +               else {
  53 +                       tx_ant = rx_ant = strtoul(argv[0], &end, 0);
  54 +                       if (*end)
  55 +                               return 1;
  56 +               }
  57 +       }
  58 +       else if (argc == 2) {
  59 +               if (strcmp(argv[0], "all") == 0)
  60 +                       tx_ant = 0xffffffff;
  61 +               else {
  62 +                       tx_ant = strtoul(argv[0], &end, 0);
  63 +                       if (*end)
  64 +                               return 1;
  65 +               }
  66 +               if (strcmp(argv[1], "all") == 0)
  67 +                       rx_ant = 0xffffffff;
  68 +               else {
  69 +                       rx_ant = strtoul(argv[1], &end, 0);
  70 +                       if (*end)
  71 +                               return 1;
  72 +               }
  73 +       } else
  74 +               return 1;
  75 +
  76 +       NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX, tx_ant);
  77 +       NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX, rx_ant);
  78 +
  79 +       return 0;
  80 +
  81 + nla_put_failure:
  82 +       return -ENOBUFS;
  83 +}
  84 +COMMAND(set, antenna, "<bitmap> | all | <tx bitmap> <rx bitmap>",
  85 +       NL80211_CMD_SET_WIPHY, 0, CIB_PHY, handle_antenna,
  86 +       "Set a bitmap of allowed antennas to use for TX and RX.\n"
  87 +       "The driver may reject antenna configurations it cannot support.");