Merge branch 'feature/bootloader_add_app_test_lvl' into 'master'

bootloader: Adds a level selection for the app's test pin.

Closes IDFGH-6703

See merge request espressif/esp-idf!17425

components/bootloader/Kconfig.projbuild

@@ -185,6 +185,20 @@ menu "Bootloader config"
             (factory or OTA[x]).
             Note that GPIO34-39 do not have an internal pullup and an external one must be provided.
 
+    choice BOOTLOADER_APP_TEST_PIN_LEVEL
+        bool "App test GPIO level"
+        depends on BOOTLOADER_APP_TEST
+        default BOOTLOADER_APP_TEST_PIN_LOW
+        help
+            Pin level for app test, can be triggered on low or high.
+
+        config BOOTLOADER_APP_TEST_PIN_LOW
+            bool "Enter test app on GPIO low"
+
+        config BOOTLOADER_APP_TEST_PIN_HIGH
+            bool "Enter test app on GPIO high"
+    endchoice
+
     config BOOTLOADER_HOLD_TIME_GPIO
         int "Hold time of GPIO for reset/test mode (seconds)"
         depends on BOOTLOADER_FACTORY_RESET || BOOTLOADER_APP_TEST

components/bootloader/subproject/main/bootloader_start.c

@@ -1,16 +1,8 @@
-// Copyright 2015-2019 Espressif Systems (Shanghai) PTE LTD
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+/*
+ * SPDX-FileCopyrightText: 2015-2022 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
 #include <stdbool.h>
 #include "esp_log.h"
 #include "bootloader_init.h"
@@ -110,7 +102,11 @@ static int selected_boot_partition(const bootloader_state_t *bs)
 #endif
         // TEST firmware.
 #ifdef CONFIG_BOOTLOADER_APP_TEST
-        if (bootloader_common_check_long_hold_gpio(CONFIG_BOOTLOADER_NUM_PIN_APP_TEST, CONFIG_BOOTLOADER_HOLD_TIME_GPIO) == 1) {
+        bool app_test_level = false;
+#if CONFIG_BOOTLOADER_APP_TEST_PIN_HIGH
+        app_test_level = true;
+#endif
+        if (bootloader_common_check_long_hold_gpio_level(CONFIG_BOOTLOADER_NUM_PIN_APP_TEST, CONFIG_BOOTLOADER_HOLD_TIME_GPIO, app_test_level) == GPIO_LONG_HOLD) {
             ESP_LOGI(TAG, "Detect a boot condition of the test firmware");
             if (bs->test.offset != 0) {
                 boot_index = TEST_APP_INDEX;

tools/ci/check_copyright_ignore.txt

@@ -1,5 +1,4 @@
 components/bootloader/subproject/main/bootloader_hooks.h
-components/bootloader/subproject/main/bootloader_start.c
 components/bt/common/osi/alarm.c
 components/bt/common/osi/allocator.c
 components/bt/common/osi/buffer.c