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feat(bt): Add initial support of Bluetooth Classic on ESP32-S31

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- feat(soc_caps): Enable BT Classic and BLE in esp32s31
- Add git submodule for ESP32-S31 bt controller lib files
- changed sdkconfig.defaults and README for Bluetooth Classic examples
- change(docs): Added vendor HCI documentations for ESP32-S31
- change(Bluedroid): Adapt to ESP32-S31 due to some API differences on
  Bluetooth controller from ESP32
- change(bt): Modify CMakeLists.txt to support the Bluetooth dual-mode
  architecture on ESP32-S31
- change(bt): Add ECC P-192 functions to tinycrypt
This commit is contained in:
wangmengyang
2026-04-21 17:50:34 +08:00
committed by Wang Mengyang
parent 9c2bde6b64
commit 11268d8bfb
95 changed files with 5312 additions and 165 deletions
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examples/bluetooth/bluedroid/coex/a2dp_gatts_coex/README.md
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| Supported Targets | ESP32 |
| ----------------- | ----- |
| Supported Targets | ESP32 | ESP32-S31 |
| ----------------- | ----- | --------- |
ESP-IDF A2DP-GATTS_COEX demo
======================
This demo showcases APIs to create a GATT service and A2DP profile and demonstrates BLE and classic Bluetooth coexistence.
The BLE GATT SERVER part of demo creates a GATT service and then starts advertising, waiting to be connected by a GATT client. After the program is started, the GATT client can discover a device named "ESP_COEX_BLE_DEMO". Once a connection is established, GATT client can read or write data to the device. Or GATT client can receive notification or indication data.
The BLE GATT SERVER part of demo creates a GATT service and then starts advertising, waiting to be connected by a GATT client. After the program is started, the GATT client can discover a device named "ESP_COEX_BLE_DEMO". Once a connection is established, GATT client can read or write data to the device. Or GATT client can receive notification or indication data.
The classic bluetooth A2DP part of the demo implements Advanced Audio Distribution Profile to receive an audio stream. After the program is started, other bluetooth devices such as smart phones can discover a device named "ESP_COEX_A2DP_DEMO". Once a connection is established, audio data can be transmitted. This will be visible in the application log including a count of audio data packets.
The classic bluetooth A2DP part of the demo implements Advanced Audio Distribution Profile to receive an audio stream. After the program is started, other bluetooth devices such as smart phones can discover a device named "ESP_COEX_A2DP_DEMO". Once a connection is established, audio data can be transmitted. This will be visible in the application log including a count of audio data packets.
examples/bluetooth/bluedroid/coex/a2dp_gatts_coex/partitions.csv
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# Name, Type, SubType, Offset, Size, Flags
# Note: if you have increased the bootloader size, make sure to update the offsets to avoid overlap
nvs, data, nvs, 0x9000, 16k
otadata, data, ota, 0xd000, 8k
phy_init, data, phy, 0xf000, 4k
factory, app, factory, 0x10000, 2M
1 # Name, Type, SubType, Offset, Size, Flags
2 # Note: if you have increased the bootloader size, make sure to update the offsets to avoid overlap
3 nvs, data, nvs, 0x9000, 16k
4 otadata, data, ota, 0xd000, 8k
5 phy_init, data, phy, 0xf000, 4k
6 factory, app, factory, 0x10000, 2M
examples/bluetooth/bluedroid/coex/a2dp_gatts_coex/sdkconfig.defaults
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# Override some defaults so BT stack is enabled and
# Classic BT is enabled and BT_DRAM_RELEASE is disabled
CONFIG_BT_ENABLED=y
CONFIG_BTDM_CTRL_MODE_BTDM=y
CONFIG_BTDM_CTRL_PINNED_TO_CORE_0=y
CONFIG_BTDM_CTRL_PINNED_TO_CORE_1=n
CONFIG_BTDM_CTRL_PINNED_TO_CORE=0
CONFIG_BTDM_CTRL_HCI_MODE_UART_H4=n
CONFIG_BT_BLUEDROID_ENABLED=y
CONFIG_BT_BLUEDROID_PINNED_TO_CORE_0=y
CONFIG_BT_BLUEDROID_PINNED_TO_CORE_1=n
CONFIG_BT_BLUEDROID_PINNED_TO_CORE=0
CONFIG_BT_BTC_TASK_STACK_SIZE=3072
CONFIG_BT_BLUEDROID_MEM_DEBUG=n
CONFIG_BT_CLASSIC_ENABLED=y
CONFIG_BT_A2DP_ENABLE=y
CONFIG_BT_SPP_ENABLED=n
CONFIG_BT_GATTS_ENABLE=y
CONFIG_BT_GATTC_ENABLE=n
CONFIG_BT_BLE_SMP_ENABLE=n
CONFIG_BT_STACK_NO_LOG=n
CONFIG_BT_ACL_CONNECTIONS=4
CONFIG_BT_ALLOCATION_FROM_SPIRAM_FIRST=n
CONFIG_BT_BLE_DYNAMIC_ENV_MEMORY=n
CONFIG_BT_SMP_ENABLE=y
CONFIG_DAC_DMA_AUTO_16BIT_ALIGN=n
CONFIG_BT_BLE_50_FEATURES_SUPPORTED=n
CONFIG_BT_BLE_42_FEATURES_SUPPORTED=y
CONFIG_BTDM_CTRL_MODE_BTDM=y
examples/bluetooth/bluedroid/coex/a2dp_gatts_coex/sdkconfig.defaults.esp32s31
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CONFIG_PARTITION_TABLE_CUSTOM=y
CONFIG_ESPTOOLPY_FLASHSIZE_4MB=y
CONFIG_EXAMPLE_A2DP_SINK_OUTPUT_IDLE=y