iw: add sgi/lgi support to set bitrates

Add possiblity to force SGI/LGI.

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>

diff --git a/bitrate.c b/bitrate.c
index e978f5b355f9bc6c8f7106909d83d378a6bb208d..4df6185329aaba3c84897b4d6642599feba11c5c 100644 (file)
--- a/bitrate.c
+++ b/bitrate.c
@@ -101,12 +101,14 @@ static int handle_bitrates(struct nl80211_state *state,
        char **vht_argv = NULL;
        int vht_argc_5 = 0; int vht_argc_24 = 0;
        int *vht_argc = NULL;
+       int sgi_24 = 0, sgi_5 = 0, lgi_24 = 0, lgi_5 = 0;
 
        enum {
                S_NONE,
                S_LEGACY,
                S_HT,
                S_VHT,
+               S_GI,
        } parser_state = S_NONE;
 
        for (i = 0; i < argc; i++) {
@@ -157,8 +159,19 @@ static int handle_bitrates(struct nl80211_state *state,
                        vht_argv = vht_argv_5;
                        vht_argc = &vht_argc_5;
                        have_vht_mcs_5 = true;
-               }
-               else switch (parser_state) {
+               } else if (strcmp(argv[i], "sgi-2.4") == 0) {
+                       sgi_24 = 1;
+                       parser_state = S_GI;
+               } else if (strcmp(argv[i], "sgi-5") == 0) {
+                       sgi_5 = 1;
+                       parser_state = S_GI;
+               } else if (strcmp(argv[i], "lgi-2.4") == 0) {
+                       lgi_24 = 1;
+                       parser_state = S_GI;
+               } else if (strcmp(argv[i], "lgi-5") == 0) {
+                       lgi_5 = 1;
+                       parser_state = S_GI;
+               } else switch (parser_state) {
                case S_LEGACY:
                        tmpd = strtod(argv[i], &end);
                        if (*end != '\0')
@@ -180,6 +193,8 @@ static int handle_bitrates(struct nl80211_state *state,
                                return 1;
                        vht_argv[(*vht_argc)++] = argv[i];
                        break;
+               case S_GI:
+                       break;
                default:
                        return 1;
                }
@@ -193,11 +208,17 @@ static int handle_bitrates(struct nl80211_state *state,
                if(!setup_vht(&txrate_vht_5, vht_argc_5, vht_argv_5))
                        return -EINVAL;
 
+       if (sgi_5 && lgi_5)
+               return 1;
+
+       if (sgi_24 && lgi_24)
+               return 1;
+
        nl_rates = nla_nest_start(msg, NL80211_ATTR_TX_RATES);
        if (!nl_rates)
                goto nla_put_failure;
 
-       if (have_legacy_24 || have_ht_mcs_24 || have_vht_mcs_24) {
+       if (have_legacy_24 || have_ht_mcs_24 || have_vht_mcs_24 || sgi_24 || lgi_24) {
                nl_band = nla_nest_start(msg, NL80211_BAND_2GHZ);
                if (!nl_band)
                        goto nla_put_failure;
@@ -207,10 +228,14 @@ static int handle_bitrates(struct nl80211_state *state,
                        nla_put(msg, NL80211_TXRATE_HT, n_ht_mcs_24, ht_mcs_24);
                if (have_vht_mcs_24)
                        nla_put(msg, NL80211_TXRATE_VHT, sizeof(txrate_vht_24), &txrate_vht_24);
+               if (sgi_24)
+                       nla_put_u8(msg, NL80211_TXRATE_GI, NL80211_TXRATE_FORCE_SGI);
+               if (lgi_24)
+                       nla_put_u8(msg, NL80211_TXRATE_GI, NL80211_TXRATE_FORCE_LGI);
                nla_nest_end(msg, nl_band);
        }
 
-       if (have_legacy_5 || have_ht_mcs_5 || have_vht_mcs_5) {
+       if (have_legacy_5 || have_ht_mcs_5 || have_vht_mcs_5 || sgi_5 || lgi_5) {
                nl_band = nla_nest_start(msg, NL80211_BAND_5GHZ);
                if (!nl_band)
                        goto nla_put_failure;
@@ -220,6 +245,10 @@ static int handle_bitrates(struct nl80211_state *state,
                        nla_put(msg, NL80211_TXRATE_HT, n_ht_mcs_5, ht_mcs_5);
                if (have_vht_mcs_5)
                        nla_put(msg, NL80211_TXRATE_VHT, sizeof(txrate_vht_5), &txrate_vht_5);
+               if (sgi_5)
+                       nla_put_u8(msg, NL80211_TXRATE_GI, NL80211_TXRATE_FORCE_SGI);
+               if (lgi_5)
+                       nla_put_u8(msg, NL80211_TXRATE_GI, NL80211_TXRATE_FORCE_LGI);
                nla_nest_end(msg, nl_band);
        }
 
@@ -231,9 +260,9 @@ static int handle_bitrates(struct nl80211_state *state,
 }
 
 #define DESCR_LEGACY "[legacy-<2.4|5> <legacy rate in Mbps>*]"
-#define DESCR DESCR_LEGACY " [ht-mcs-<2.4|5> <MCS index>*] [vht-mcs-<2.4|5> <NSS:MCSx,MCSy... | NSS:MCSx-MCSy>*]"
+#define DESCR DESCR_LEGACY " [ht-mcs-<2.4|5> <MCS index>*] [vht-mcs-<2.4|5> <NSS:MCSx,MCSy... | NSS:MCSx-MCSy>*] [sgi-2.4|lgi-2.4] [sgi-5|lgi-5]"
 
-COMMAND(set, bitrates, "[legacy-<2.4|5> <legacy rate in Mbps>*] [ht-mcs-<2.4|5> <MCS index>*] [vht-mcs-<2.4|5> <NSS:MCSx,MCSy... | NSS:MCSx-MCSy>*]",
+COMMAND(set, bitrates, "[legacy-<2.4|5> <legacy rate in Mbps>*] [ht-mcs-<2.4|5> <MCS index>*] [vht-mcs-<2.4|5> <NSS:MCSx,MCSy... | NSS:MCSx-MCSy>*] [sgi-2.4|lgi-2.4] [sgi-5|lgi-5]",
        NL80211_CMD_SET_TX_BITRATE_MASK, 0, CIB_NETDEV, handle_bitrates,
        "Sets up the specified rate masks.\n"
        "Not passing any arguments would clear the existing mask (if any).");