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 diff --git a/info.c b/info.c
  19 index ce85514..75cadf0 100644
  20 --- a/info.c
  21 +++ b/info.c
  22 @@ -168,6 +168,13 @@ static int print_phy_handler(struct nl_msg *msg, void *arg)
  23                 printf("\tCoverage class: %d (up to %dm)\n", coverage, 450 * coverage);
  24         }
  25
  26 +       if (tb_msg[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
  27 +           tb_msg[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
  28 +               printf("\tAntenna: TX %#x RX %#x\n",
  29 +                      nla_get_u32(tb_msg[NL80211_ATTR_WIPHY_ANTENNA_TX]),
  30 +                      nla_get_u32(tb_msg[NL80211_ATTR_WIPHY_ANTENNA_RX]));
  31 +       }
  32 +
  33         if (tb_msg[NL80211_ATTR_SUPPORTED_IFTYPES]) {
  34                 printf("\tSupported interface modes:\n");
  35                 nla_for_each_nested(nl_mode, tb_msg[NL80211_ATTR_SUPPORTED_IFTYPES], rem_mode)
  36 diff --git a/phy.c b/phy.c
  37 index 7c6c7c8..e3bd4e8 100644
  38 --- a/phy.c
  39 +++ b/phy.c
  40 @@ -307,3 +307,51 @@ COMMAND(set, txpower, "<auto|fixed|limit> [<tx power in mBm>]",
  41  COMMAND(set, txpower, "<auto|fixed|limit> [<tx power in mBm>]",
  42         NL80211_CMD_SET_WIPHY, 0, CIB_NETDEV, handle_txpower,
  43         "Specify transmit power level and setting type.");
  44 +
  45 +static int handle_antenna(struct nl80211_state *state,
  46 +                         struct nl_cb *cb,
  47 +                         struct nl_msg *msg,
  48 +                         int argc, char **argv)
  49 +{
  50 +       char *end;
  51 +       uint32_t tx_ant = 0, rx_ant = 0;
  52 +
  53 +       if (argc == 1) {
  54 +               if (strcmp(argv[0], "all") == 0)
  55 +                       tx_ant = rx_ant = 0xffffffff;
  56 +               else {
  57 +                       tx_ant = rx_ant = strtoul(argv[0], &end, 0);
  58 +                       if (*end)
  59 +                               return 1;
  60 +               }
  61 +       }
  62 +       else if (argc == 2) {
  63 +               if (strcmp(argv[0], "all") == 0)
  64 +                       tx_ant = 0xffffffff;
  65 +               else {
  66 +                       tx_ant = strtoul(argv[0], &end, 0);
  67 +                       if (*end)
  68 +                               return 1;
  69 +               }
  70 +               if (strcmp(argv[1], "all") == 0)
  71 +                       rx_ant = 0xffffffff;
  72 +               else {
  73 +                       rx_ant = strtoul(argv[1], &end, 0);
  74 +                       if (*end)
  75 +                               return 1;
  76 +               }
  77 +       } else
  78 +               return 1;
  79 +
  80 +       NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX, tx_ant);
  81 +       NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX, rx_ant);
  82 +
  83 +       return 0;
  84 +
  85 + nla_put_failure:
  86 +       return -ENOBUFS;
  87 +}
  88 +COMMAND(set, antenna, "<bitmap> | all | <tx bitmap> <rx bitmap>",
  89 +       NL80211_CMD_SET_WIPHY, 0, CIB_PHY, handle_antenna,
  90 +       "Set a bitmap of allowed antennas to use for TX and RX.\n"
  91 +       "The driver may reject antenna configurations it cannot support.");