From b7535693fa4628f8f831e2c87fdbccc3c050f05f Mon Sep 17 00:00:00 2001
From: Jesse Hills <3060199+jesserockz@users.noreply.github.com>
Date: Wed, 16 Mar 2022 13:35:37 +1300
Subject: [PATCH] Add helper overloads for hex print 16-bit (#3297)

---
 esphome/core/helpers.cpp | 19 +++++++++++++++++++
 esphome/core/helpers.h   |  4 ++++
 2 files changed, 23 insertions(+)

diff --git a/esphome/core/helpers.cpp b/esphome/core/helpers.cpp
index a346cd7e0b..b03d890ad8 100644
--- a/esphome/core/helpers.cpp
+++ b/esphome/core/helpers.cpp
@@ -213,6 +213,25 @@ std::string format_hex_pretty(const uint8_t *data, size_t length) {
 }
 std::string format_hex_pretty(const std::vector<uint8_t> &data) { return format_hex_pretty(data.data(), data.size()); }
 
+std::string format_hex_pretty(const uint16_t *data, size_t length) {
+  if (length == 0)
+    return "";
+  std::string ret;
+  ret.resize(5 * length - 1);
+  for (size_t i = 0; i < length; i++) {
+    ret[5 * i] = format_hex_pretty_char((data[i] & 0xF000) >> 12);
+    ret[5 * i + 1] = format_hex_pretty_char((data[i] & 0x0F00) >> 8);
+    ret[5 * i + 2] = format_hex_pretty_char((data[i] & 0x00F0) >> 4);
+    ret[5 * i + 3] = format_hex_pretty_char(data[i] & 0x000F);
+    if (i != length - 1)
+      ret[5 * i + 2] = '.';
+  }
+  if (length > 4)
+    return ret + " (" + to_string(length) + ")";
+  return ret;
+}
+std::string format_hex_pretty(const std::vector<uint16_t> &data) { return format_hex_pretty(data.data(), data.size()); }
+
 ParseOnOffState parse_on_off(const char *str, const char *on, const char *off) {
   if (on == nullptr && strcasecmp(str, "on") == 0)
     return PARSE_ON;
diff --git a/esphome/core/helpers.h b/esphome/core/helpers.h
index e0763d2c71..074bea6fd1 100644
--- a/esphome/core/helpers.h
+++ b/esphome/core/helpers.h
@@ -386,8 +386,12 @@ template<typename T, enable_if_t<std::is_unsigned<T>::value, int> = 0> std::stri
 
 /// Format the byte array \p data of length \p len in pretty-printed, human-readable hex.
 std::string format_hex_pretty(const uint8_t *data, size_t length);
+/// Format the word array \p data of length \p len in pretty-printed, human-readable hex.
+std::string format_hex_pretty(const uint16_t *data, size_t length);
 /// Format the vector \p data in pretty-printed, human-readable hex.
 std::string format_hex_pretty(const std::vector<uint8_t> &data);
+/// Format the vector \p data in pretty-printed, human-readable hex.
+std::string format_hex_pretty(const std::vector<uint16_t> &data);
 /// Format an unsigned integer in pretty-printed, human-readable hex, starting with the most significant byte.
 template<typename T, enable_if_t<std::is_unsigned<T>::value, int> = 0> std::string format_hex_pretty(T val) {
   val = convert_big_endian(val);