From 94970371aff696e19785e83c1305decd82f748bf Mon Sep 17 00:00:00 2001
From: hathach <thach@tinyusb.org>
Date: Wed, 8 Nov 2023 00:28:36 +0700
Subject: [PATCH] try to generate update-tinyuf2.uf2

---
 ports/espressif/CMakeLists.txt                            | 8 ++++++++
 .../components/self_update/project_include.cmake          | 1 +
 .../components/self_update/subproject/main/CMakeLists.txt | 5 +++++
 3 files changed, 14 insertions(+)

diff --git a/ports/espressif/CMakeLists.txt b/ports/espressif/CMakeLists.txt
index ee74db06c..0a51fd8f7 100644
--- a/ports/espressif/CMakeLists.txt
+++ b/ports/espressif/CMakeLists.txt
@@ -12,6 +12,14 @@ set(SDKCONFIG ${CMAKE_BINARY_DIR}/sdkconfig)
 
 include($ENV{IDF_PATH}/tools/cmake/project.cmake)
 
+if(IDF_TARGET STREQUAL "esp32s3")
+  set(UF2_FAMILY_ID 0xc47e5767)
+elseif(IDF_TARGET STREQUAL "esp32s2")
+  set(UF2_FAMILY_ID 0xbfdd4eee)
+else()
+  message(FATAL_ERROR "Unsupported ${target}.")
+endif()
+
 execute_process(COMMAND git describe --dirty --always --tags
                 OUTPUT_VARIABLE GIT_VERSION)
 string(STRIP ${GIT_VERSION} GIT_VERSION)
diff --git a/ports/espressif/components/self_update/project_include.cmake b/ports/espressif/components/self_update/project_include.cmake
index 2e8d5d85f..c0063ee4d 100644
--- a/ports/espressif/components/self_update/project_include.cmake
+++ b/ports/espressif/components/self_update/project_include.cmake
@@ -28,6 +28,7 @@ externalproject_add(self_update
                 -DEXTRA_COMPONENT_DIRS=${CMAKE_CURRENT_LIST_DIR}
                 -DPROJECT_SOURCE_DIR=${PROJECT_SOURCE_DIR}
                 -DBOARD=${BOARD}
+                -DUF2_FAMILY_ID=${UF2_FAMILY_ID}
                 ${extra_cmake_args}
     INSTALL_COMMAND ""
     BUILD_ALWAYS 1  # no easy way around this...
diff --git a/ports/espressif/components/self_update/subproject/main/CMakeLists.txt b/ports/espressif/components/self_update/subproject/main/CMakeLists.txt
index 87032f69b..e7540ed9b 100644
--- a/ports/espressif/components/self_update/subproject/main/CMakeLists.txt
+++ b/ports/espressif/components/self_update/subproject/main/CMakeLists.txt
@@ -12,3 +12,8 @@ add_custom_target(bootloader_bin DEPENDS bootloader_bin.c)
 add_dependencies(${COMPONENT_LIB} bootloader_bin)
 set_property(DIRECTORY "${COMPONENT_DIR}" APPEND PROPERTY
   ADDITIONAL_CLEAN_FILES bootloader_bin.c)
+
+cmake_print_variables(elf COMPONENT_LIB)
+add_custom_command(TARGET ${COMPONENT_LIB} POST_BUILD
+  COMMAND ${Python_EXECUTABLE} ${UF2CONV_PY} -f ${UF2_FAMILY_ID} -b 0x0 -c -o ${CMAKE_BINARY_DIR}/update-tinyuf2.uf2 ${CMAKE_BINARY_DIR}/update-tinyuf2.bin
+  VERBATIM)