From 2959725f3282837747f1e1d3a496e46ca1d6b612 Mon Sep 17 00:00:00 2001
From: Benjamin Valentin <benjamin.valentin@ml-pa.com>
Date: Tue, 17 Dec 2024 14:34:11 +0100
Subject: [PATCH] dist/tools/esptools: add support for installing esp8266
 toolchain

---
 dist/tools/esptools/export.sh  |  7 +++++-
 dist/tools/esptools/install.sh | 40 +++++++++++++++++++++-------------
 2 files changed, 31 insertions(+), 16 deletions(-)

diff --git a/dist/tools/esptools/export.sh b/dist/tools/esptools/export.sh
index a29121b32e..d415ac2a92 100755
--- a/dist/tools/esptools/export.sh
+++ b/dist/tools/esptools/export.sh
@@ -1,6 +1,7 @@
 #!/bin/sh
 
 ESP32_GCC_RELEASE="esp-12.2.0_20230208"
+ESP8266_GCC_RELEASE="esp-5.2.0_20191018"
 
 ESP32_OPENOCD_VERSION="v0.12.0-esp32-20230313"
 
@@ -13,6 +14,10 @@ TOOLS_PATH="${IDF_TOOLS_PATH}/tools"
 export_arch()
 {
     case $1 in
+        esp8266)
+            TARGET_ARCH="xtensa-esp8266-elf"
+            ESP32_GCC_RELEASE=${ESP8266_GCC_RELEASE}
+            ;;
         esp32)
             TARGET_ARCH="xtensa-esp32-elf"
             ;;
@@ -130,7 +135,7 @@ if [ -z "$1" ]; then
     echo "<tool> = all | esp32 | esp32c3 | esp32s2 | esp32s3 | gdb | openocd | qemu"
     echo "<platform> = xtensa | riscv"
 elif [ "$1" = "all" ]; then
-    ARCH_ALL="esp32 esp32c3 esp32s2 esp32s3"
+    ARCH_ALL="esp8266 esp32 esp32c3 esp32s2 esp32s3"
     for arch in ${ARCH_ALL}; do
         export_arch "$arch"
     done
diff --git a/dist/tools/esptools/install.sh b/dist/tools/esptools/install.sh
index b6a5784096..87bcf01c91 100755
--- a/dist/tools/esptools/install.sh
+++ b/dist/tools/esptools/install.sh
@@ -4,6 +4,8 @@ ESP32_GCC_RELEASE="esp-12.2.0_20230208"
 ESP32_GCC_VERSION_DIR="12.2.0"
 ESP32_GCC_VERSION_DOWNLOAD="12.2.0_20230208"
 
+ESP8266_GCC_RELEASE="esp-5.2.0_20191018"
+
 ESP32_OPENOCD_VERSION="v0.12.0-esp32-20230313"
 ESP32_OPENOCD_VERSION_TGZ="0.12.0-esp32-20230313"
 
@@ -84,6 +86,10 @@ download()
 install_arch()
 {
     case "$1" in
+        esp8266)
+            TARGET_ARCH="xtensa-esp8266-elf"
+            ESP32_GCC_RELEASE=${ESP8266_GCC_RELEASE}
+            ;;
         esp32)
             TARGET_ARCH="xtensa-esp32-elf"
             ;;
@@ -103,19 +109,23 @@ install_arch()
 
     TOOLS_DIR="${TOOLS_PATH}/${TARGET_ARCH}/${ESP32_GCC_RELEASE}"
 
-    URL_PATH="https://github.com/espressif/crosstool-NG/releases/download"
-    URL_TGZ="${TARGET_ARCH}-${ESP32_GCC_VERSION_DOWNLOAD}-${OS}.tar.xz"
-    URL="${URL_PATH}/${ESP32_GCC_RELEASE}/${URL_TGZ}"
+    if [ "$1" = "esp8266" ]; then
+        git clone https://github.com/gschorcht/xtensa-esp8266-elf ${TOOLS_DIR}/${TARGET_ARCH}
+    else
+        URL_PATH="https://github.com/espressif/crosstool-NG/releases/download"
+        URL_TGZ="${TARGET_ARCH}-${ESP32_GCC_VERSION_DOWNLOAD}-${OS}.tar.xz"
+        URL="${URL_PATH}/${ESP32_GCC_RELEASE}/${URL_TGZ}"
 
-    echo "Creating directory ${TOOLS_DIR} ..." && \
-    mkdir -p "${TOOLS_DIR}" && \
-    cd "${TOOLS_DIR}" && \
-    echo "Downloading ${URL_TGZ} ..." && \
-    download "${URL}" "${URL_TGZ}" && \
-    echo "Extracting ${URL_TGZ} in ${TOOLS_DIR} ..." && \
-    tar xfJ "${URL_TGZ}" && \
-    echo "Removing ${URL_TGZ} ..." && \
-    rm -f "${URL_TGZ}" && \
+        echo "Creating directory ${TOOLS_DIR} ..." && \
+        mkdir -p "${TOOLS_DIR}" && \
+        cd "${TOOLS_DIR}" && \
+        echo "Downloading ${URL_TGZ} ..." && \
+        download "${URL}" "${URL_TGZ}" && \
+        echo "Extracting ${URL_TGZ} in ${TOOLS_DIR} ..." && \
+        tar xfJ "${URL_TGZ}" && \
+        echo "Removing ${URL_TGZ} ..." && \
+        rm -f "${URL_TGZ}"
+    fi
     echo "$1 toolchain installed in ${TOOLS_DIR}/$TARGET_ARCH"
 }
 
@@ -214,11 +224,11 @@ echo $URL_GET $URL
 if [ -z "$1" ]; then
     echo "Usage: install.sh <tool>"
     echo "       install.sh gdb <platform>"
-    echo "<tool> = all | esp32 | esp32c3 | esp32s2 | esp32s3 | gdb | openocd | qemu"
+    echo "<tool> = all | esp8266 | esp32 | esp32c3 | esp32s2 | esp32s3 | gdb | openocd | qemu"
     echo "<platform> = xtensa | riscv"
     exit 1
 elif [ "$1" = "all" ]; then
-    ARCH_ALL="esp32 esp32c3 esp32s2 esp32s3"
+    ARCH_ALL="esp8266 esp32 esp32c3 esp32s2 esp32s3"
     for arch in ${ARCH_ALL}; do
         install_arch "$arch"
     done
@@ -241,4 +251,4 @@ else
 fi
 
 echo "Use following command to extend the PATH variable:"
-echo ". $(dirname "$0")/export.sh"
+echo ". $(dirname "$0")/export.sh $1"