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lib/bt/porting/mem/bt_osi_mem.c

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+/*
+ * SPDX-FileCopyrightText: 2015-2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include "esp_attr.h"
+#include "esp_heap_caps.h"
+#include "sdkconfig.h"
+
+IRAM_ATTR void *bt_osi_mem_malloc(size_t size)
+{
+#ifdef CONFIG_BT_NIMBLE_MEM_ALLOC_MODE_INTERNAL
+    return heap_caps_malloc(size, MALLOC_CAP_INTERNAL|MALLOC_CAP_8BIT);
+#elif CONFIG_BT_NIMBLE_MEM_ALLOC_MODE_EXTERNAL
+    return heap_caps_malloc(size, MALLOC_CAP_SPIRAM|MALLOC_CAP_8BIT);
+#elif CONFIG_BT_NIMBLE_MEM_ALLOC_MODE_IRAM_8BIT
+    return heap_caps_malloc_prefer(size, 2, MALLOC_CAP_INTERNAL|MALLOC_CAP_IRAM_8BIT, MALLOC_CAP_INTERNAL|MALLOC_CAP_8BIT);
+#else
+    return malloc(size);
+#endif
+}
+
+IRAM_ATTR void *bt_osi_mem_calloc(size_t n, size_t size)
+{
+#ifdef CONFIG_BT_NIMBLE_MEM_ALLOC_MODE_INTERNAL
+    return heap_caps_calloc(n, size, MALLOC_CAP_INTERNAL|MALLOC_CAP_8BIT);
+#elif CONFIG_BT_NIMBLE_MEM_ALLOC_MODE_EXTERNAL
+    return heap_caps_calloc(n, size, MALLOC_CAP_SPIRAM|MALLOC_CAP_8BIT);
+#elif CONFIG_BT_NIMBLE_MEM_ALLOC_MODE_IRAM_8BIT
+    return heap_caps_calloc_prefer(n, size, 2, MALLOC_CAP_INTERNAL|MALLOC_CAP_IRAM_8BIT, MALLOC_CAP_INTERNAL|MALLOC_CAP_8BIT);
+#else
+    return calloc(n, size);
+#endif
+}
+
+IRAM_ATTR void *bt_osi_mem_malloc_internal(size_t size)
+{
+    return heap_caps_malloc(size, MALLOC_CAP_INTERNAL|MALLOC_CAP_8BIT|MALLOC_CAP_DMA);
+}
+
+IRAM_ATTR void *bt_osi_mem_calloc_internal(size_t n, size_t size)
+{
+    return heap_caps_calloc(n, size, MALLOC_CAP_INTERNAL|MALLOC_CAP_8BIT|MALLOC_CAP_DMA);
+}
+
+IRAM_ATTR void bt_osi_mem_free(void *ptr)
+{
+    heap_caps_free(ptr);
+}

lib/bt/porting/mem/bt_osi_mem.h

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+/*
+ * SPDX-FileCopyrightText: 2015-2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#pragma once
+
+#include "sdkconfig.h"
+#include "esp_attr.h"
+#include "esp_heap_caps.h"
+
+void *bt_osi_mem_malloc(size_t size);
+
+void *bt_osi_mem_calloc(size_t n, size_t size);
+
+void *bt_osi_mem_malloc_internal(size_t size);
+
+void *bt_osi_mem_calloc_internal(size_t n, size_t size);
+
+void bt_osi_mem_free(void *ptr);