b87eb7c82f
This commit adds support to Ai-Thinker ESP32 Audio Kit V2.2 A247 board. There are two modules of this board. The old model uses AC101 audio and is not supported currently (AFAIK there is no AC101 driver) and the new version uses the ES8388 audio codec. This model is supported by this commit. Just read the documentation to test playing an audio file. TODO: Test audio recording.
102 lines
3.7 KiB
C
102 lines
3.7 KiB
C
/****************************************************************************
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* boards/xtensa/esp32/esp32-audio-kit/src/esp32_boot.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <debug.h>
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#include <nuttx/board.h>
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#include <nuttx/mm/mm.h>
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#include <arch/board/board.h>
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#include <arch/esp32/memory_layout.h>
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#include "esp32-audio-kit.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: esp32_board_initialize
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*
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* Description:
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* All ESP32 architectures must provide the following entry point.
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* This entry point is called early in the initialization -- after all
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* memory has been configured and mapped but before any devices have been
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* initialized.
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*
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****************************************************************************/
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void esp32_board_initialize(void)
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{
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/* Configure on-board LEDs if LED support has been selected. */
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#ifdef CONFIG_ARCH_LEDS
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board_autoled_initialize();
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#endif
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}
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/****************************************************************************
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* Name: board_late_initialize
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*
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* Description:
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* If CONFIG_BOARD_LATE_INITIALIZE is selected, then an additional
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* initialization call will be performed in the boot-up sequence to a
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* function called board_late_initialize(). board_late_initialize() will
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* be called immediately after up_initialize() is called and just before
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* the initial application is started. This additional initialization
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* phase may be used, for example, to initialize board-specific device
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* drivers.
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*
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****************************************************************************/
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#ifdef CONFIG_BOARD_LATE_INITIALIZE
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void board_late_initialize(void)
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{
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/* Perform board-specific initialization */
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esp32_bringup();
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#ifdef CONFIG_SMP
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/* To avoid corrupting the heap, this region of memory (~3KB) is not
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* included until the APP CPU has started.
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* So we can't add it with the rest of the regions at xtensa_add_region(),
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* that function is called early from up_initialize(). We wait until the
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* SMP bringup is complete.
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*/
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umm_addregion((void *)HEAP_REGION_ROMAPP_START,
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(size_t)(HEAP_REGION_ROMAPP_END - HEAP_REGION_ROMAPP_START));
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#endif
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}
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#endif
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