[rdk-b][mt7986][wifi-hal][Add get Radio Channel Stats function]
[Description]
Add get Radio Channel Stats function. The sample time is the period between current and previous call.
[Release-log]
N/A
Change-Id: I850c5276c370311a68835172dd654879e2379827
diff --git a/recipes-ccsp/hal/hal-wifi-patches/0045-HAL-add-get-channel-stats.patch b/recipes-ccsp/hal/hal-wifi-patches/0045-HAL-add-get-channel-stats.patch
new file mode 100644
index 0000000..8e0dcc3
--- /dev/null
+++ b/recipes-ccsp/hal/hal-wifi-patches/0045-HAL-add-get-channel-stats.patch
@@ -0,0 +1,106 @@
+From 9e4545526749cc1d7b2eec18020d8329cf278dc0 Mon Sep 17 00:00:00 2001
+From: "Allen.Ye" <allen.ye@mediatek.com>
+Date: Fri, 26 Aug 2022 16:12:05 +0800
+Subject: [PATCH] HAL add get channel stats
+
+---
+ source/wifi/wifi_hal.c | 76 ++++++++++++++++++++++++++++++++++++++++++
+ 1 file changed, 76 insertions(+)
+
+diff --git a/source/wifi/wifi_hal.c b/source/wifi/wifi_hal.c
+index 453e551..f9639a2 100644
+--- a/source/wifi/wifi_hal.c
++++ b/source/wifi/wifi_hal.c
+@@ -75,6 +75,7 @@ Licensed under the ISC license
+ #define VAP_STATUS_FILE "/tmp/vap-status"
+ #define ESSID_FILE "/tmp/essid"
+ #define GUARD_INTERVAL_FILE "/tmp/guard-interval"
++#define CHANNEL_STATS_FILE "/tmp/channel_stats"
+
+ #ifdef MTK_IMPL
+ #define DRIVER_2GHZ "mt7915e"
+@@ -1065,6 +1066,81 @@ INT wifi_setRadioCountryCode(INT radioIndex, CHAR *CountryCode)
+ return RETURN_OK;
+ }
+
++INT wifi_getRadioChannelStats2(INT radioIndex, wifi_channelStats2_t *outputChannelStats2)
++{
++ char channel_util_file[64] = {0};
++ char cmd[128] = {0};
++ char buf[128] = {0};
++ char *line = NULL, *param = NULL, *value = NULL;
++ int read = 0;
++ unsigned int ActiveTime = 0, BusyTime = 0, TransmitTime = 0;
++ unsigned int preActiveTime = 0, preBusyTime = 0, preTransmitTime = 0;
++ size_t len = 0;
++ FILE *f = NULL;
++
++ WIFI_ENTRY_EXIT_DEBUG("Inside %s:%d\n",__func__, __LINE__);
++
++ snprintf(cmd, sizeof(cmd), "iw %s%d scan | grep signal | awk '{print $2}' | sort -n | tail -n1", AP_PREFIX, radioIndex);
++ _syscmd(cmd, buf, sizeof(buf));
++ outputChannelStats2->ch_Max80211Rssi = strtol(buf, NULL, 10);
++
++ memset(cmd, 0, sizeof(cmd));
++ memset(buf, 0, sizeof(buf));
++ snprintf(cmd, sizeof(cmd), "iw %s%d survey dump | grep 'in use' -A6", AP_PREFIX, radioIndex);
++ if ((f = popen(cmd, "r")) == NULL) {
++ wifi_dbg_printf("%s: popen %s error\n", __func__, cmd);
++ return RETURN_ERR;
++ }
++
++ read = getline(&line, &len, f);
++ while (read != -1) {
++ param = strtok(line, ":\t");
++ value = strtok(NULL, " ");
++ if(strstr(param, "frequency") != NULL) {
++ outputChannelStats2->ch_Frequency = strtol(value, NULL, 10);
++ }
++ if(strstr(param, "noise") != NULL) {
++ outputChannelStats2->ch_NoiseFloor = strtol(value, NULL, 10);
++ outputChannelStats2->ch_Non80211Noise = strtol(value, NULL, 10);
++ }
++ if(strstr(param, "channel active time") != NULL) {
++ ActiveTime = strtol(value, NULL, 10);
++ }
++ if(strstr(param, "channel busy time") != NULL) {
++ BusyTime = strtol(value, NULL, 10);
++ }
++ if(strstr(param, "channel transmit time") != NULL) {
++ TransmitTime = strtol(value, NULL, 10);
++ }
++ read = getline(&line, &len, f);
++ }
++ pclose(f);
++
++ // The file should store the last active, busy and transmit time
++ snprintf(channel_util_file, sizeof(channel_util_file), "%s%d.txt", CHANNEL_STATS_FILE, radioIndex);
++ f = fopen(channel_util_file, "r");
++ if (f != NULL) {
++ read = getline(&line, &len, f);
++ preActiveTime = strtol(line, NULL, 10);
++ read = getline(&line, &len, f);
++ preBusyTime = strtol(line, NULL, 10);
++ read = getline(&line, &len, f);
++ preTransmitTime = strtol(line, NULL, 10);
++ fclose(f);
++ }
++
++ outputChannelStats2->ch_ObssUtil = (BusyTime - preBusyTime)*100/(ActiveTime - preActiveTime);
++ outputChannelStats2->ch_SelfBssUtil = (TransmitTime - preTransmitTime)*100/(ActiveTime - preActiveTime);
++
++ f = fopen(channel_util_file, "w");
++ if (f != NULL) {
++ fprintf(f, "%u\n%u\n%u\n", ActiveTime, BusyTime, TransmitTime);
++ fclose(f);
++ }
++ WIFI_ENTRY_EXIT_DEBUG("Exiting %s:%d\n",__func__, __LINE__);
++ return RETURN_OK;
++}
++
+ /**********************************************************************************
+ *
+ * Wifi radio level function prototypes
+--
+2.18.0
+