change dcd_dcache_*() API return type from void to bool

src/common/tusb_mcu.h

@@ -364,19 +364,15 @@
   #define TUP_DCD_ENDPOINT_MAX    16 // FS 7 ep, HS 16 ep
 
   #define CFG_TUSB_OS_INC_PATH_DEFAULT   freertos/
+  #define CFG_TUSB_MEM_DCACHE_LINE_SIZE_DEFAULT  64
 
   #if defined(CFG_TUD_DWC2_DMA_ENABLE) && CFG_TUD_DWC2_DMA_ENABLE == 1
   #define CFG_TUD_MEM_DCACHE_ENABLE_DEFAULT  1
   #endif
 
-  #if defined(CFG_TUH_DWC2_DMA_ENABLE) && CFG_TUH_DWC2_DMA_ENABLE == 1
+  #define CFG_TUH_DWC2_DMA_ENABLE_DEFAULT  0
-  #define CFG_TUH_MEM_DCACHE_ENABLE_DEFAULT 1
+  #define CFG_TUH_MEM_DCACHE_ENABLE_DEFAULT 0
-  #endif
 
-  #define CFG_TUD_MEM_DCACHE_LINE_SIZE_DEFAULT  64
-  #define CFG_TUH_MEM_DCACHE_LINE_SIZE_DEFAULT  64
-
-  #define CFG_TUH_DWC2_DMA_ENABLE_DEFAULT  0 // TODO currently have issue with buffer DMA with espressif
 
 #elif TU_CHECK_MCU(OPT_MCU_ESP32, OPT_MCU_ESP32C2, OPT_MCU_ESP32C3, OPT_MCU_ESP32C6, OPT_MCU_ESP32H2)
   #if (CFG_TUD_ENABLED || !(defined(CFG_TUH_MAX3421) && CFG_TUH_MAX3421))

src/common/tusb_types.h

@@ -35,8 +35,9 @@
  extern "C" {
 #endif
 
-#define TUD_EPBUF_DCACHE_SIZE(_size) \
+//------------- Device DCache declaration -------------//
-  (CFG_TUD_MEM_DCACHE_ENABLE ? (TU_DIV_CEIL(_size, CFG_TUD_MEM_DCACHE_LINE_SIZE) * CFG_TUD_MEM_DCACHE_LINE_SIZE) : (_size))
+#define TUD_EPBUF_DCACHE_SIZE(_size) (CFG_TUD_MEM_DCACHE_ENABLE ? \
+  (TU_DIV_CEIL(_size, CFG_TUD_MEM_DCACHE_LINE_SIZE) * CFG_TUD_MEM_DCACHE_LINE_SIZE) : (_size))
 
 // Declare an endpoint buffer with uint8_t[size]
 #define TUD_EPBUF_DEF(_name, _size) \
@@ -52,6 +53,25 @@
     uint8_t _name##_dcache_padding[TUD_EPBUF_DCACHE_SIZE(sizeof(_type))]; \
   };
 
+//------------- Host DCache declaration -------------//
+#define TUH_EPBUF_DCACHE_SIZE(_size) (CFG_TUH_MEM_DCACHE_ENABLE ? \
+  (TU_DIV_CEIL(_size, CFG_TUH_MEM_DCACHE_LINE_SIZE) * CFG_TUH_MEM_DCACHE_LINE_SIZE) : (_size))
+
+// Declare an endpoint buffer with uint8_t[size]
+#define TUH_EPBUF_DEF(_name, _size) \
+  union { \
+    CFG_TUH_MEM_ALIGN uint8_t _name[_size]; \
+    uint8_t _name##_dcache_padding[TUH_EPBUF_DCACHE_SIZE(_size)]; \
+  };
+
+// Declare an endpoint buffer with a type
+#define TUH_EPBUF_TYPE_DEF(_name, _type) \
+  union { \
+    CFG_TUH_MEM_ALIGN _type _name; \
+    uint8_t _name##_dcache_padding[TUH_EPBUF_DCACHE_SIZE(sizeof(_type))]; \
+  };
+
+
 /*------------------------------------------------------------------*/
 /* CONSTANTS
  *------------------------------------------------------------------*/

src/device/dcd.h

@@ -93,15 +93,15 @@ typedef struct TU_ATTR_ALIGNED(4) {
 
 // clean/flush data cache: write cache -> memory.
 // Required before an DMA TX transfer to make sure data is in memory
-void dcd_dcache_clean(const void* addr, uint32_t data_size);
+bool dcd_dcache_clean(const void* addr, uint32_t data_size);
 
 // invalidate data cache: mark cache as invalid, next read will read from memory
 // Required BOTH before and after an DMA RX transfer
-void dcd_dcache_invalidate(const void* addr, uint32_t data_size);
+bool dcd_dcache_invalidate(const void* addr, uint32_t data_size);
 
 // clean and invalidate data cache
 // Required before an DMA transfer where memory is both read/write by DMA
-void dcd_dcache_clean_invalidate(const void* addr, uint32_t data_size);
+bool dcd_dcache_clean_invalidate(const void* addr, uint32_t data_size);
 
 //--------------------------------------------------------------------+
 // Controller API

src/device/usbd.c

@@ -97,16 +97,19 @@ TU_ATTR_WEAK void dcd_disconnect(uint8_t rhport) {
   (void) rhport;
 }
 
-TU_ATTR_WEAK void dcd_dcache_clean(const void* addr, uint32_t data_size) {
+TU_ATTR_WEAK bool dcd_dcache_clean(const void* addr, uint32_t data_size) {
   (void) addr; (void) data_size;
+  return true;
 }
 
-TU_ATTR_WEAK void dcd_dcache_invalidate(const void* addr, uint32_t data_size) {
+TU_ATTR_WEAK bool dcd_dcache_invalidate(const void* addr, uint32_t data_size) {
   (void) addr; (void) data_size;
+  return true;
 }
 
-TU_ATTR_WEAK void dcd_dcache_clean_invalidate(const void* addr, uint32_t data_size) {
+TU_ATTR_WEAK bool dcd_dcache_clean_invalidate(const void* addr, uint32_t data_size) {
   (void) addr; (void) data_size;
+  return true;
 }
 
 //--------------------------------------------------------------------+

src/portable/chipidea/ci_hs/dcd_ci_hs.c

@@ -34,43 +34,29 @@
 #if CFG_TUSB_MCU == OPT_MCU_MIMXRT1XXX
   #include "ci_hs_imxrt.h"
 
-  void dcd_dcache_clean(void const* addr, uint32_t data_size) {
+  bool dcd_dcache_clean(void const* addr, uint32_t data_size) {
-    imxrt_dcache_clean(addr, data_size);
+    return imxrt_dcache_clean(addr, data_size);
   }
 
-  void dcd_dcache_invalidate(void const* addr, uint32_t data_size) {
+  bool dcd_dcache_invalidate(void const* addr, uint32_t data_size) {
-    imxrt_dcache_invalidate(addr, data_size);
+    return imxrt_dcache_invalidate(addr, data_size);
   }
 
-  void dcd_dcache_clean_invalidate(void const* addr, uint32_t data_size) {
+  bool dcd_dcache_clean_invalidate(void const* addr, uint32_t data_size) {
-    imxrt_dcache_clean_invalidate(addr, data_size);
+    return imxrt_dcache_clean_invalidate(addr, data_size);
   }
 
-#else
+#elif TU_CHECK_MCU(OPT_MCU_LPC18XX, OPT_MCU_LPC43XX)
-
-#if TU_CHECK_MCU(OPT_MCU_LPC18XX, OPT_MCU_LPC43XX)
   #include "ci_hs_lpc18_43.h"
 
 #elif TU_CHECK_MCU(OPT_MCU_MCXN9)
   // MCX N9 only port 1 use this controller
   #include "ci_hs_mcx.h"
+
 #else
   #error "Unsupported MCUs"
 #endif
 
-  TU_ATTR_WEAK void dcd_dcache_clean(void const* addr, uint32_t data_size) {
-    (void) addr; (void) data_size;
-  }
-
-  TU_ATTR_WEAK void dcd_dcache_invalidate(void const* addr, uint32_t data_size) {
-    (void) addr; (void) data_size;
-  }
-
-  TU_ATTR_WEAK void dcd_dcache_clean_invalidate(void const* addr, uint32_t data_size) {
-    (void) addr; (void) data_size;
-  }
-#endif
-
 //--------------------------------------------------------------------+
 // MACRO CONSTANT TYPEDEF
 //--------------------------------------------------------------------+

src/portable/synopsys/dwc2/dcd_dwc2.c

@@ -83,22 +83,19 @@ CFG_TUD_MEM_SECTION static struct {
 // DMA
 //--------------------------------------------------------------------
 #if CFG_TUD_MEM_DCACHE_ENABLE
-void dcd_dcache_clean(const void* addr, uint32_t data_size) {
+bool dcd_dcache_clean(const void* addr, uint32_t data_size) {
-  if (addr && data_size) {
+  TU_VERIFY(addr && data_size);
-    dwc2_dcache_clean(addr, data_size);
+  return dwc2_dcache_clean(addr, data_size);
-  }
 }
 
-void dcd_dcache_invalidate(const void* addr, uint32_t data_size) {
+bool dcd_dcache_invalidate(const void* addr, uint32_t data_size) {
-  if (addr && data_size) {
+  TU_VERIFY(addr && data_size);
-    dwc2_dcache_invalidate(addr, data_size);
+  return dwc2_dcache_invalidate(addr, data_size);
-  }
 }
 
-void dcd_dcache_clean_invalidate(const void* addr, uint32_t data_size) {
+bool dcd_dcache_clean_invalidate(const void* addr, uint32_t data_size) {
-  if (addr && data_size) {
+  TU_VERIFY(addr && data_size);
-    dwc2_dcache_clean_invalidate(addr, data_size);
+  return dwc2_dcache_clean_invalidate(addr, data_size);
-  }
 }
 #endif
 

src/portable/synopsys/dwc2/dwc2_esp32.h

@@ -130,22 +130,22 @@ TU_ATTR_ALWAYS_INLINE static inline uint32_t round_up_to_cache_line_size(uint32_
   return size;
 }
 
-TU_ATTR_ALWAYS_INLINE static inline void dwc2_dcache_clean(const void* addr, uint32_t data_size) {
+TU_ATTR_ALWAYS_INLINE static inline bool dwc2_dcache_clean(const void* addr, uint32_t data_size) {
   const int flag = ESP_CACHE_MSYNC_FLAG_TYPE_DATA | ESP_CACHE_MSYNC_FLAG_DIR_C2M;
   data_size = round_up_to_cache_line_size(data_size);
-  assert(ESP_OK == esp_cache_msync((void*)addr, data_size, flag));
+  return ESP_OK == esp_cache_msync((void*)addr, data_size, flag);
 }
 
-TU_ATTR_ALWAYS_INLINE static inline void dwc2_dcache_invalidate(const void* addr, uint32_t data_size) {
+TU_ATTR_ALWAYS_INLINE static inline bool dwc2_dcache_invalidate(const void* addr, uint32_t data_size) {
   const int flag = ESP_CACHE_MSYNC_FLAG_TYPE_DATA | ESP_CACHE_MSYNC_FLAG_DIR_M2C;
   data_size = round_up_to_cache_line_size(data_size);
-  assert(ESP_OK == esp_cache_msync((void*)addr, data_size, flag));
+  return ESP_OK == esp_cache_msync((void*)addr, data_size, flag);
 }
 
-TU_ATTR_ALWAYS_INLINE static inline void dwc2_dcache_clean_invalidate(const void* addr, uint32_t data_size) {
+TU_ATTR_ALWAYS_INLINE static inline bool dwc2_dcache_clean_invalidate(const void* addr, uint32_t data_size) {
   const int flag = ESP_CACHE_MSYNC_FLAG_TYPE_DATA | ESP_CACHE_MSYNC_FLAG_DIR_C2M | ESP_CACHE_MSYNC_FLAG_DIR_M2C;
   data_size = round_up_to_cache_line_size(data_size);
-  assert(ESP_OK == esp_cache_msync((void*)addr, data_size, flag));
+  return ESP_OK == esp_cache_msync((void*)addr, data_size, flag);
 }
 
 #endif

src/tusb_option.h

@@ -397,6 +397,14 @@
   #define CFG_TUSB_MEM_ALIGN      TU_ATTR_ALIGNED(4)
 #endif
 
+#ifndef CFG_TUSB_MEM_DCACHE_LINE_SIZE
+  #ifndef CFG_TUSB_MEM_DCACHE_LINE_SIZE_DEFAULT
+  #define CFG_TUSB_MEM_DCACHE_LINE_SIZE_DEFAULT 32
+  #endif
+
+  #define CFG_TUSB_MEM_DCACHE_LINE_SIZE CFG_TUSB_MEM_DCACHE_LINE_SIZE_DEFAULT
+#endif
+
 // OS selection
 #ifndef CFG_TUSB_OS
   #define CFG_TUSB_OS             OPT_OS_NONE
@@ -433,11 +441,7 @@
 #endif
 
 #ifndef CFG_TUD_MEM_DCACHE_LINE_SIZE
-  #ifndef CFG_TUD_MEM_DCACHE_LINE_SIZE_DEFAULT
+  #define CFG_TUD_MEM_DCACHE_LINE_SIZE CFG_TUSB_MEM_DCACHE_LINE_SIZE
-  #define CFG_TUD_MEM_DCACHE_LINE_SIZE_DEFAULT 32
-  #endif
-
-  #define CFG_TUD_MEM_DCACHE_LINE_SIZE CFG_TUD_MEM_DCACHE_LINE_SIZE_DEFAULT
 #endif
 
 #ifndef CFG_TUD_ENDPOINT0_SIZE
@@ -556,11 +560,7 @@
 #endif
 
 #ifndef CFG_TUH_MEM_DCACHE_LINE_SIZE
-  #ifndef CFG_TUH_MEM_DCACHE_LINE_SIZE_DEFAULT
+  #define CFG_TUH_MEM_DCACHE_LINE_SIZE CFG_TUSB_MEM_DCACHE_LINE_SIZE
-  #define CFG_TUH_MEM_DCACHE_LINE_SIZE_DEFAULT 32
-  #endif
-
-  #define CFG_TUH_MEM_DCACHE_LINE_SIZE CFG_TUH_MEM_DCACHE_LINE_SIZE_DEFAULT
 #endif
 
 //------------- CLASS -------------//