From 42061dded1c1114369bd1098050181cb85c13a24 Mon Sep 17 00:00:00 2001
From: xiehang <xiehang@espressif.com>
Date: Mon, 7 Dec 2020 15:49:58 +0800
Subject: [PATCH] esp_wifi: add limitation for setting maximum WiFi TX power

Limit the WiFi TX power range to 10dBm ~ 20.5 dBm
---
 components/esp32/Kconfig         |  2 +-
 components/esp32/phy_init_data.h | 12 ++++++------
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/components/esp32/Kconfig b/components/esp32/Kconfig
index 9e91c732ad..5ad4f26a99 100644
--- a/components/esp32/Kconfig
+++ b/components/esp32/Kconfig
@@ -1418,7 +1418,7 @@ menu PHY
 
     config ESP32_PHY_MAX_WIFI_TX_POWER
         int "Max WiFi TX power (dBm)"
-        range 0 20
+        range 10 20
         default 20
         help
             Set maximum transmit power for WiFi radio. Actual transmit power for high
diff --git a/components/esp32/phy_init_data.h b/components/esp32/phy_init_data.h
index c44307505c..2cb12a7378 100644
--- a/components/esp32/phy_init_data.h
+++ b/components/esp32/phy_init_data.h
@@ -77,12 +77,12 @@ static const esp_phy_init_data_t phy_init_data= { {
         0x18,
         0x18,
         0x18,
-        LIMIT(CONFIG_ESP32_PHY_MAX_TX_POWER * 4, 0, 78),
-        LIMIT(CONFIG_ESP32_PHY_MAX_TX_POWER * 4, 0, 72),
-        LIMIT(CONFIG_ESP32_PHY_MAX_TX_POWER * 4, 0, 66),
-        LIMIT(CONFIG_ESP32_PHY_MAX_TX_POWER * 4, 0, 60),
-        LIMIT(CONFIG_ESP32_PHY_MAX_TX_POWER * 4, 0, 56),
-        LIMIT(CONFIG_ESP32_PHY_MAX_TX_POWER * 4, 0, 52),
+        LIMIT(CONFIG_ESP32_PHY_MAX_TX_POWER * 4, 40, 78),
+        LIMIT(CONFIG_ESP32_PHY_MAX_TX_POWER * 4, 40, 72),
+        LIMIT(CONFIG_ESP32_PHY_MAX_TX_POWER * 4, 40, 66),
+        LIMIT(CONFIG_ESP32_PHY_MAX_TX_POWER * 4, 40, 60),
+        LIMIT(CONFIG_ESP32_PHY_MAX_TX_POWER * 4, 40, 56),
+        LIMIT(CONFIG_ESP32_PHY_MAX_TX_POWER * 4, 40, 52),
         0,
         1,
         1,