add saola button pin support, esp32 build with board_test

examples/device/board_test/CMakeLists.txt

@@ -0,0 +1,14 @@
+# The following five lines of boilerplate have to be in your project's
+# CMakeLists in this exact order for cmake to work correctly
+cmake_minimum_required(VERSION 3.5)
+
+# example src directory
+set(EXTRA_COMPONENT_DIRS "src")
+
+# TOP is absolute path to root directory of TinyUSB git repo
+set(TOP "../../..")
+get_filename_component(TOP "${TOP}" REALPATH)
+
+include($ENV{IDF_PATH}/tools/cmake/project.cmake)
+
+project(board_test)

examples/device/board_test/sdkconfig.defaults

@@ -0,0 +1,4 @@
+CONFIG_IDF_CMAKE=y
+CONFIG_IDF_TARGET="esp32s2"
+CONFIG_IDF_TARGET_ESP32S2=y
+

examples/device/board_test/src/CMakeLists.txt

@@ -0,0 +1,19 @@
+idf_component_register(SRCS "main.c"
+                    INCLUDE_DIRS "."
+                    REQUIRES freertos soc)
+                    
+target_compile_options(${COMPONENT_TARGET} PUBLIC
+  "-DCFG_TUSB_MCU=OPT_MCU_ESP32S2"
+  "-DCFG_TUSB_OS=OPT_OS_FREERTOS"
+)
+
+idf_component_get_property( FREERTOS_ORIG_INCLUDE_PATH freertos ORIG_INCLUDE_PATH)
+target_include_directories(${COMPONENT_TARGET} PUBLIC
+  "${FREERTOS_ORIG_INCLUDE_PATH}"
+  "${TOP}/hw"
+  "${TOP}/src"
+)
+
+target_sources(${COMPONENT_TARGET} PUBLIC
+  "${TOP}/hw/bsp/esp32s2_saola/esp32s2_saola.c"
+)

examples/device/board_test/src/main.c

@@ -73,3 +73,10 @@ int main(void)
 
   return 0;
 }
+
+#if CFG_TUSB_MCU == OPT_MCU_ESP32S2
+void app_main(void)
+{
+  main();
+}
+#endif

examples/device/board_test/src/tusb_config.h

@@ -39,8 +39,11 @@
   #error CFG_TUSB_MCU must be defined
 #endif
 
+#ifndef CFG_TUSB_OS
+  #define CFG_TUSB_OS               OPT_OS_NONE
+#endif
+
 #define CFG_TUSB_RHPORT0_MODE       OPT_MODE_NONE
-#define CFG_TUSB_OS                 OPT_OS_NONE
 
 // CFG_TUSB_DEBUG is defined by compiler in DEBUG build
 // #define CFG_TUSB_DEBUG           0

examples/device/cdc_msc_freertos/CMakeLists.txt

@@ -5,6 +5,10 @@ cmake_minimum_required(VERSION 3.5)
 # example src directory
 set(EXTRA_COMPONENT_DIRS "src")
 
+# TOP is absolute path to root directory of TinyUSB git repo
+set(TOP "../../..")
+get_filename_component(TOP "${TOP}" REALPATH)
+
 include($ENV{IDF_PATH}/tools/cmake/project.cmake)
 
 project(cdc_msc_freertos)

examples/device/cdc_msc_freertos/src/CMakeLists.txt

@@ -1,7 +1,3 @@
-# TOP is absolute path to root directory of TinyUSB git repo
-set(TOP "../../../..")
-get_filename_component(TOP "${TOP}" REALPATH)
-
 idf_component_register(SRCS "main.c" "usb_descriptors.c" "msc_disk.c"
                     INCLUDE_DIRS "."
                     REQUIRES freertos soc)

hw/bsp/esp32s2_saola/esp32s2_saola.c

@@ -32,7 +32,10 @@
 // MACRO TYPEDEF CONSTANT ENUM DECLARATION
 //--------------------------------------------------------------------+
 
-#define LED_PIN   21
+#define LED_PIN               21
+
+#define BUTTON_PIN            0
+#define BUTTON_STATE_ACTIVE   0
 
 // Initialize on-board peripherals : led, button, uart and USB
 void board_init(void)
@@ -41,6 +44,11 @@ void board_init(void)
   gpio_pad_select_gpio(LED_PIN);
   gpio_set_direction(LED_PIN, GPIO_MODE_OUTPUT);
 
+  // Button
+  gpio_pad_select_gpio(BUTTON_PIN);
+  gpio_set_direction(BUTTON_PIN, GPIO_MODE_INPUT);
+  gpio_set_pull_mode(BUTTON_PIN, BUTTON_STATE_ACTIVE ? GPIO_PULLDOWN_ONLY : GPIO_PULLUP_ONLY);
+
   // USB Controller Hal init
   usb_hal_context_t hal = {
     .use_external_phy = false // use built-in PHY
@@ -58,7 +66,7 @@ void board_led_write(bool state)
 // a '1' means active (pressed), a '0' means inactive.
 uint32_t board_button_read(void)
 {
-  return 0;
+  return gpio_get_level(BUTTON_PIN) == BUTTON_STATE_ACTIVE;
 }
 
 // Get characters from UART