recipes-ccsp/hal/hal-wifi-patches/0027-HAL-refactor-wifi_getRadioPossibleChannels.patch

From 404109f913afc751127ccba752b7dbba98e5ba8b Mon Sep 17 00:00:00 2001
From: "Allen.Ye" <allen.ye@mediatek.com>
Date: Tue, 30 Aug 2022 18:34:17 +0800
Subject: [PATCH 1/2] HAL: refactor wifi_getRadioPossibleChannels

---
 source/wifi/wifi_hal.c | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

diff --git a/source/wifi/wifi_hal.c b/source/wifi/wifi_hal.c
index d2f0c3b..d44eab0 100644
--- a/source/wifi/wifi_hal.c
+++ b/source/wifi/wifi_hal.c
@@ -1925,10 +1925,24 @@ INT wifi_setRadioMode(INT radioIndex, CHAR *channelMode, UINT pureMode)
 //The output_string is a max length 64 octet string that is allocated by the RDKB code.  Implementations must ensure that strings are not longer than this.
 INT wifi_getRadioPossibleChannels(INT radioIndex, CHAR *output_string)	//RDKB
 {
+    WIFI_ENTRY_EXIT_DEBUG("Inside %s:%d\n",__func__, __LINE__);
     if (NULL == output_string) 
         return RETURN_ERR;
-    //TODO:read this from iw phy phyX info |grep MHz
-    snprintf(output_string, 64, (radioIndex == 0)?"1,2,3,4,5,6,7,8,9,10,11":"36,40,44,48,52,56,60,64,100,104,108,112,116,120,124,128,132,136,140");
+    char cmd[256] = {0};
+    char buf[128] = {0};
+    BOOL dfs_enable = false;
+    // Parse possible channel number and separate them with commas.
+    wifi_getRadioDfsEnable(radioIndex, &dfs_enable);
+    if (dfs_enable)
+        snprintf(cmd, sizeof(cmd), "iw phy phy%d info | grep -e '\\*.*MHz .*dBm' | cut -d '[' -f2 | cut -d ']' -f1 | tr '\\n' ',' | sed 's/.$//'", radioIndex);
+    else 
+        snprintf(cmd, sizeof(cmd), "iw phy phy%d info | grep -e '\\*.*MHz .*dBm' | grep -v 'radar' | cut -d '[' -f2 | cut -d ']' -f1 | tr '\\n' ',' | sed 's/.$//'", radioIndex);
+
+    _syscmd(cmd,buf,sizeof(buf));
+    strncpy(output_string, buf, sizeof(buf));
+
+    WIFI_ENTRY_EXIT_DEBUG("Exiting %s:%d\n",__func__, __LINE__);
+    return RETURN_OK;
 #if 0
     char IFName[50] ={0};
     char buf[MAX_BUF_SIZE] = {0};
-- 
2.18.0