From b7066ea04dfbb226169284a081575f6692d54f5f Mon Sep 17 00:00:00 2001
From: 0xFEEDC0DE64 <daniel@brunner.ninja>
Date: Thu, 8 Sep 2022 21:36:11 +0200
Subject: [PATCH] Fixed i2s implementation

---
 CMakeLists.txt                         |  1 +
 platforms/esp/32/clockless_i2s_esp32.h | 24 +++++++++++++++---------
 2 files changed, 16 insertions(+), 9 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6ac4a9a..761c304 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -28,4 +28,5 @@ idf_component_register(
         .
     REQUIRES
         arduino-esp32
+        esp_rom
 )
diff --git a/platforms/esp/32/clockless_i2s_esp32.h b/platforms/esp/32/clockless_i2s_esp32.h
index 08d25a0..6ba9fdc 100644
--- a/platforms/esp/32/clockless_i2s_esp32.h
+++ b/platforms/esp/32/clockless_i2s_esp32.h
@@ -89,11 +89,9 @@
 // This is way too noisy. Is output a LARGE NUMBER of times.
 // #pragma message "NOTE: ESP32 support using I2S parallel driver. All strips must use the same chipset"
 
-FASTLED_NAMESPACE_BEGIN
-
-#ifdef __cplusplus
-extern "C" {
-#endif
+//#ifdef __cplusplus
+//extern "C" {
+//#endif
     
 #include "esp_heap_caps.h"
 #include "esp_intr_alloc.h"
@@ -107,15 +105,23 @@ extern "C" {
 #include "soc/io_mux_reg.h"
 #include "driver/gpio.h"
 #include "driver/periph_ctrl.h"
+#include "driver/i2s.h"
 #include "esp32/rom/lldesc.h"
+#include "esp32/rom/gpio.h"
 
 #include "esp_log.h"
 
+#include "freertos/FreeRTOS.h"
+
 #include "clockless_esp32.h"
+
+#include "math.h"
     
-#ifdef __cplusplus
-}
-#endif
+//#ifdef __cplusplus
+//}
+//#endif
+
+FASTLED_NAMESPACE_BEGIN
 
 #define FASTLED_HAS_CLOCKLESS 1
 #define NUM_COLOR_CHANNELS 3
@@ -144,7 +150,7 @@ static int gNumStarted = 0;
 
 // -- Global semaphore for the whole show process
 //    Semaphore is not given until all data has been sent
-static xSemaphoreHandle gTX_sem = NULL;
+static SemaphoreHandle_t gTX_sem = NULL;
 
 // -- One-time I2S initialization
 static bool gInitialized = false;