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WIFI-1807-Channel-Change

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This patch will resolve the channel switching issue when there is a single SSID on each radio

Signed-off-by: Nagendrababu <nagendrababu.bonkuri@connectus.ai>
This commit is contained in:
Nagendrababu
2021-04-21 16:02:21 -04:00
committed by Rick Sommerville
parent e5bc8c9550
commit cc8e30e1d4
6 changed files with 110 additions and 39 deletions
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2
feeds/wlan-ap/opensync/src/platform/openwrt/src/lib/target/inc/utils.h
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@@ -13,6 +13,7 @@ struct mode_map {
char *ucihwmode;
char *htmode;
char *ucihtmode;
int sec_channel_offset;
};
extern struct mode_map *mode_map_get_uci(const char *band, const char *htmode, const char *hwmode);
@@ -39,4 +40,5 @@ extern int iface_is_up(const char *ifname);
extern int net_get_mtu(char *iface);
extern int net_get_mac(char *iface, char *mac);
extern int net_is_bridge(char *iface);
extern char* get_max_channel_bw_channel(int channel_freq, const char* htmode);
#endif

5
feeds/wlan-ap/opensync/src/platform/openwrt/src/lib/target/src/radio.c
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@@ -406,8 +406,9 @@ bool target_radio_config_set2(const struct schema_Wifi_Radio_Config *rconf,
}
if ((changed->ht_mode) || (changed->hw_mode) || (changed->freq_band)) {
struct mode_map *m = mode_map_get_uci(rconf->freq_band, rconf->ht_mode,
rconf->hw_mode);
int channel_freq;
channel_freq = ieee80211_channel_to_frequency(rconf->channel);
struct mode_map *m = mode_map_get_uci(rconf->freq_band, get_max_channel_bw_channel(channel_freq, rconf->ht_mode), rconf->hw_mode);
if (m) {
blobmsg_add_string(&b, "htmode", m->ucihtmode);
blobmsg_add_string(&b, "hwmode", m->ucihwmode);

104
feeds/wlan-ap/opensync/src/platform/openwrt/src/lib/target/src/utils.c
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@@ -23,41 +23,79 @@
#include "vif.h"
static struct mode_map mode_map[] = {
{ 0, "11b", "11b", NULL, "NOHT" },
{ 0, "11g", "11g", NULL, "NOHT" },
{ 1, "11a", "11a", NULL, "NOHT" },
{ 0, "11n", "11g", "HT20", "HT20" },
{ 0, "11n", "11g", "HT40", "HT40" },
{ 0, "11n", "11g", "HT40-", "HT40-" },
{ 0, "11n", "11g", "HT40+", "HT40+" },
{ 0, "11n", "11g", "HT80", "HT40" },
{ 0, "11n", "11g", "HT160", "HT40" },
{ 1, "11n", "11a", "HT20", "HT20" },
{ 1, "11n", "11a", "HT40", "HT40" },
{ 1, "11n", "11a", "HT40-", "HT40-" },
{ 1, "11n", "11a", "HT40+", "HT40+" },
{ 1, "11n", "11a", "HT80", "HT40" },
{ 1, "11n", "11a", "HT160", "HT40" },
{ 1, "11ac", "11a", "HT20", "VHT20" },
{ 1, "11ac", "11a", "HT40", "VHT40" },
{ 1, "11ac", "11a", "HT40-", "VHT40" },
{ 1, "11ac", "11a", "HT40+", "VHT40" },
{ 1, "11ac", "11a", "HT80", "VHT80" },
{ 1, "11ac", "11a", "HT160", "VHT160" },
{ 0, "11ax", "11g", "HT20", "HE20" },
{ 0, "11ax", "11g", "HT40", "HE40" },
{ 0, "11ax", "11g", "HT40-", "HE40" },
{ 0, "11ax", "11g", "HT40+", "HE40" },
{ 0, "11ax", "11g", "HT80", "HE80" },
{ 0, "11ax", "11g", "HT160", "HE80" },
{ 1, "11ax", "11a", "HT20", "HE20" },
{ 1, "11ax", "11a", "HT40", "HE40" },
{ 1, "11ax", "11a", "HT40-", "HE40" },
{ 1, "11ax", "11a", "HT40+", "HE40" },
{ 1, "11ax", "11a", "HT80", "HE80" },
{ 1, "11ax", "11a", "HT160", "HE160" },
{ 0, "11b", "11b", NULL, "NOHT", 0 },
{ 0, "11g", "11g", NULL, "NOHT", 0 },
{ 1, "11a", "11a", NULL, "NOHT", 0 },
{ 0, "11n", "11g", "HT20", "HT20", 0 },
{ 0, "11n", "11g", "HT40", "HT40", 1 },
{ 0, "11n", "11g", "HT40-", "HT40-", 1 },
{ 0, "11n", "11g", "HT40+", "HT40+", 1 },
{ 0, "11n", "11g", "HT80", "HT40", 1 },
{ 0, "11n", "11g", "HT160", "HT40", 1 },
{ 1, "11n", "11a", "HT20", "HT20", 0 },
{ 1, "11n", "11a", "HT40", "HT40", 1 },
{ 1, "11n", "11a", "HT40-", "HT40-", 1 },
{ 1, "11n", "11a", "HT40+", "HT40+", 1 },
{ 1, "11n", "11a", "HT80", "HT40", 1 },
{ 1, "11n", "11a", "HT160", "HT40", 1 },
{ 1, "11ac", "11a", "HT20", "VHT20", 0 },
{ 1, "11ac", "11a", "HT40", "VHT40", 1 },
{ 1, "11ac", "11a", "HT40-", "VHT40", 1 },
{ 1, "11ac", "11a", "HT40+", "VHT40", 1 },
{ 1, "11ac", "11a", "HT80", "VHT80", 1 },
{ 1, "11ac", "11a", "HT160", "VHT160", 1 },
{ 0, "11ax", "11g", "HT20", "HE20", 0 },
{ 0, "11ax", "11g", "HT40", "HE40", 1 },
{ 0, "11ax", "11g", "HT40-", "HE40", 1 },
{ 0, "11ax", "11g", "HT40+", "HE40", 1 },
{ 0, "11ax", "11g", "HT80", "HE80", 1 },
{ 0, "11ax", "11g", "HT160", "HE80", 1 },
{ 1, "11ax", "11a", "HT20", "HE20", 0 },
{ 1, "11ax", "11a", "HT40", "HE40", 1 },
{ 1, "11ax", "11a", "HT40-", "HE40", 1 },
{ 1, "11ax", "11a", "HT40+", "HE40", 1 },
{ 1, "11ax", "11a", "HT80", "HE80", 1 },
{ 1, "11ax", "11a", "HT160", "HE160", 1 },
};
typedef enum {
MHz20=0,
MHz40 = 1,
MHz80 = 2,
MHz160 = 4
} bm_AllowedBw;
typedef struct {
int freq;
bm_AllowedBw bw;
} freqBwListEntry;
freqBwListEntry freqBwList[] ={{2412, MHz20},{2417, MHz20},{2422, MHz20},{2427, MHz20},{2432, MHz20},{2437, MHz20},{2442, MHz20},{2447, MHz20},{2452, MHz20},{2457, MHz20},{2462, MHz20},{2467, MHz20},{2472, MHz20}, {2484, MHz20},
{ 5180, MHz20|MHz40|MHz80},{5200, MHz20},{5220, MHz20|MHz40},{5240, MHz20},{5260, MHz20|MHz40|MHz80},{5280, MHz20},{5300,MHz20|MHz40},{5320, MHz20},{5500, MHz20|MHz40|MHz80},{5520, MHz20},{5540, MHz20|MHz40}, {5560, MHz20},
{5580, MHz20|MHz40|MHz80},{5600, MHz20},{5620, MHz20|MHz40},{5640, MHz20},{5660, MHz20|MHz40|MHz80},{5680, MHz20},{5700, MHz20|MHz40},{5720, MHz20},{5745, MHz20|MHz40|MHz80},{5765, MHz20},{5785, MHz20|MHz40},{5805, MHz20},{5825, MHz20}};
#define REQ_BW(htmode) (!strcmp(htmode, "HT20") ? MHz20 : !strcmp(htmode, "HT40") ? MHz40 : !strcmp(htmode, "HT80") ? MHz80 : !strcmp(htmode, "HT160") ? MHz160 : MHz20)
#define REQ_MODE(bw) (bw==MHz20 ? "HT20": bw==MHz40 ? "HT40" : bw==MHz80 ? "HT80" : bw==MHz160 ? "HT160" : "HT20")
char * get_max_channel_bw_channel(int channel_freq, const char* htmode)
{
unsigned int i;
bm_AllowedBw requestedBw;
requestedBw = REQ_BW(htmode);
for ( i = 0; i < ARRAY_SIZE(freqBwList); i++) {
if(freqBwList[i].freq == channel_freq) {
while (requestedBw) {
if (freqBwList[i].bw & requestedBw) {
return REQ_MODE(requestedBw);
}
requestedBw >>= 1;
}
}
}
return "HT20";
}
struct mode_map *mode_map_get_uci(const char *band, const char *htmode, const char *hwmode)
{
unsigned int i;

2
feeds/wlan-ap/opensync/src/platform/openwrt/src/rrm/inc/rrm.h
View File

@@ -75,7 +75,7 @@ int rrm_setup_monitor(void);
void rrm_channel_init(void);
int rrm_ubus_init(struct ev_loop *loop);
int ubus_get_noise(const char *if_name, uint32_t *noise);
int ubus_set_channel_switch(const char *if_name, uint32_t frequency);
int ubus_set_channel_switch(const char *if_name, uint32_t frequency, int channel_bandwidth, int sec_chan_offset);
void set_rrm_parameters(rrm_entry_t *rrm_data);
ds_tree_t* rrm_get_rrm_config_list(void);
ds_tree_t* rrm_get_radio_list(void);

21
feeds/wlan-ap/opensync/src/platform/openwrt/src/rrm/src/rrm_channel.c
View File

@@ -94,6 +94,15 @@ radio_entry_t* rrm_get_radio_config(radio_type_t band)
}
return NULL;
}
void get_channel_bandwidth(const char* htmode, int *channel_bandwidth)
{
if(!strcmp(htmode, "HT20"))
*channel_bandwidth=20;
else if (!strcmp(htmode, "HT40"))
*channel_bandwidth=40;
else if(!strcmp(htmode, "HT80"))
*channel_bandwidth=80;
}
void rrm_nf_timer_handler(struct ev_loop *loop, ev_timer *timer, int revents)
{
@@ -161,9 +170,19 @@ void rrm_nf_timer_handler(struct ev_loop *loop, ev_timer *timer, int revents)
rrm_config->rrm_data.noise_lwm,
rrm_config->rrm_data.snr_percentage_drop,
nf_drop_threshold);
int channel_bandwidth;
int sec_chan_offset=0;
struct mode_map *m = mode_map_get_uci(radio->schema.freq_band, get_max_channel_bw_channel(ieee80211_channel_to_frequency(rrm_config->rrm_data.backup_channel),
radio->schema.ht_mode), radio->schema.hw_mode);
if (m) {
sec_chan_offset = m->sec_channel_offset;
} else
LOGE("failed to get channel offset");
get_channel_bandwidth(get_max_channel_bw_channel(ieee80211_channel_to_frequency(rrm_config->rrm_data.backup_channel),
radio->schema.ht_mode), &channel_bandwidth);
ubus_set_channel_switch(radio->config.if_name,
ieee80211_channel_to_frequency(rrm_config->rrm_data.backup_channel));
ieee80211_channel_to_frequency(rrm_config->rrm_data.backup_channel), channel_bandwidth, sec_chan_offset);
}
}
}

15
feeds/wlan-ap/opensync/src/platform/openwrt/src/rrm/src/rrm_ubus.c
View File

@@ -51,7 +51,7 @@ int ubus_get_noise(const char *if_name, uint32_t *noise)
}
int ubus_set_channel_switch(const char *if_name, uint32_t frequency)
int ubus_set_channel_switch(const char *if_name, uint32_t frequency, int channel_bandwidth, int sec_chan_offset)
{
uint32_t id;
static struct blob_buf b;
@@ -61,10 +61,21 @@ int ubus_set_channel_switch(const char *if_name, uint32_t frequency)
if (ubus_lookup_id(ubus, path, &id))
return -1;
blob_buf_init(&b, 0);
if (channel_bandwidth == 20 || channel_bandwidth == 40) {
blobmsg_add_bool(&b, "ht", 1);
} else if (channel_bandwidth == 80) {
blobmsg_add_bool(&b, "vht", 1);
}
if (channel_bandwidth == 40 || channel_bandwidth == 80) {
blobmsg_add_u32(&b, "center_freq1", frequency+30);
}
blobmsg_add_u32(&b, "freq", frequency);
blobmsg_add_u32(&b, "bcn_count", 1);
blobmsg_add_u32(&b, "bandwidth", channel_bandwidth);
blobmsg_add_u32(&b, "sec_channel_offset", sec_chan_offset);
return ubus_invoke(ubus, id, "switch_chan", b.head, NULL, NULL, 1000);
}