HIL: replace build.flags_on with named build variants (#3687)

* test/hil: replace build.flags_on with named variant schema

Boards declare build variants as `variant: [{name, flags}]` instead of
`build.flags_on`. The variant `name` is the build dir (cmake-build-<name>) and
the HIL report row; `flags` is the raw CFLAGS string (-D...=1) injected via
CFLAGS_CLI. No `variant` => a single build named after the board.

- build.py: --build-name <name> (dir) + --cflag=<token> (raw CFLAGS, repeatable,
  =form survives the matrix's shell word-splitting); drop -f1/CFLAGS wrapping.
- hil_ci_set_matrix.py: emit one build arg per variant.
- hil_test.py: iterate variants; report row + build dir = variant name.
- hil_ci.sh: copy all cmake-build-<board>* dirs for -b runs.
- get_deps.py: accept (ignore) --build-name/--cflag from matrix args.
- tinyusb.json: migrate all 6 flags_on boards to variant.

* board_test: park CI build with busy spin instead of wfe

1 files changed, 19 insertions, 31 deletions

diff --git a/examples/device/board_test/src/main.c b/examples/device/board_test/src/main.c
index 3d8cf9979..96dc1bd30 100644
--- a/examples/device/board_test/src/main.c
+++ b/examples/device/board_test/src/main.c
@@ -57,8 +57,16 @@ void tusb_time_delay_ms_api(uint32_t ms) {
 // CI_BUILD (defined for all CI builds, see hw/bsp/family_support.cmake) skips the
 // blink/echo loop below: after HIL tests, this firmware is flashed to park the
 // board in a quiet, low-power idle state (no USB, LED, or UART activity).
-#ifndef CI_BUILD
+#ifdef CI_BUILD
+int main(void) {
+  while (1) {
+    #if defined(ESP_PLATFORM)
+    vTaskDelay(portMAX_DELAY);
+    #endif
+  }
+}
 
+#else
 // Task parameter type: ULONG for ThreadX, void* for FreeRTOS and noos
 #if CFG_TUSB_OS == OPT_OS_THREADX
   #define RTOS_PARAM ULONG
@@ -112,46 +120,21 @@ static void board_test_loop(RTOS_PARAM param) {
   }
 }
 
-#endif // CI_BUILD
-
 int main(void) {
-#ifdef CI_BUILD
-  // Park the board in a quiet, low-power idle loop. board_init() is intentionally
-  // skipped: no clocks, peripherals, USB, LED, or UART are brought up, so the MCU
-  // just idles after CI flashes this over a board's previous test firmware.
-  while (1) {
-    #if defined(ESP_PLATFORM)
-    vTaskDelay(portMAX_DELAY); // ESP runs FreeRTOS: yield this task indefinitely
-    #elif defined(__ARM_ARCH) || defined(__arm__)
-    __asm volatile("wfe");     // Cortex-M: sleep until an event
-    #else
-    // other architectures (e.g. RISC-V): spin
-    #endif
-  }
-  // no return: the loop never exits (an unreachable return trips IAR's Pe111)
-#else
   board_init();
   board_led_write(true);
 
-  #if CFG_TUSB_OS == OPT_OS_FREERTOS
+#if CFG_TUSB_OS == OPT_OS_FREERTOS
   freertos_init();
-  #elif CFG_TUSB_OS == OPT_OS_THREADX
+#elif CFG_TUSB_OS == OPT_OS_THREADX
   tx_kernel_enter();
-  #else
+#else
   board_test_loop(NULL);
-  #endif
-
-  return 0;
 #endif
-}
 
-#ifdef ESP_PLATFORM
-void app_main(void) {
-  main();
+  return 0;
 }
-#endif
 
-#ifndef CI_BUILD
 //--------------------------------------------------------------------+
 // FreeRTOS
 //--------------------------------------------------------------------+
@@ -197,5 +180,10 @@ void tx_application_define(void *first_unused_memory) {
                    1, 1, TX_NO_TIME_SLICE, TX_AUTO_START);
 }
 #endif
-
 #endif // CI_BUILD
+
+#ifdef ESP_PLATFORM
+void app_main(void) {
+  main();
+}
+#endif