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Merged
xiaoxiang781216 merged 3 commits into from
Jun 1, 2026
+1,250 −14
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arch/risc-v/espressif: Add BLE support for esp32[-c6|-h2] #19009

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8482f53
arch/risc-v/espressif: Add BLE support for esp32[-c6|-h2]
eren-terzioglu May 25, 2026
ff1cbd4
boards/risc-v/espressif: Add BLE board support for esp32[-c6|-h2]
eren-terzioglu May 25, 2026
defbed3
Docs/platforms/esp32[-c6|-h2]: Add BLE docs for esp32[-c6|-h2]
eren-terzioglu May 28, 2026
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68 changes: 68 additions & 0 deletions Documentation/platforms/risc-v/esp32c6/boards/esp32c6-devkitc/index.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -121,6 +121,74 @@ power if DTIM is short as the DTIM is determined by the access point.

During ping operation power consumption should drop from 90-100mA to 30-40mA.

ble
---

This configuration is used to enable the Bluetooth Low Energy (BLE) of
ESP32-C6 chip.

To test it, just run the following commands below.

Confirm that bnep interface exist::

nsh> ifconfig
bnep0 Link encap:UNSPEC at DOWN mtu -9
inet addr:0.0.0.0 DRaddr:0.0.0.0 Mask:0.0.0.0

Get basic information from it::

nsh> bt bnep0 info
Device: bnep0
BDAddr: 8c:bf:ea:b3:4c:ea
Flags: 0000
Free: 20
ACL: 20
SCO: 0
Max:
ACL: 24
SCO: 0
MTU:
ACL: 70
SCO: 70
Policy: 0
Type: 0

Start the scanning process::

nsh> bt bnep0 scan start

Wait a little bit before stopping it.

Then after some minutes stop it::

nsh> bt bnep0 scan stop

Get the list of BLE devices found around you::

nsh> bt bnep0 scan get
Scan result:
1. addr: d7:c4:e6:xx:xx:xx type: 0
rssi: -62
response type: 4
advertiser data: 10 09 4d 69 20 XX XX XX XX XX XX XX XX XX XX 20 e
2. addr: cb:23:18:xx:xx:xx type: 0
rssi: -60
response type: 0
advertiser data: 02 01 06 1b ff XX XX XX ff ff ff ff ff ff ff ff 8
3. addr: cb:23:18:xx:xx:xx type: 0
rssi: -60
response type: 4
advertiser data: 10 09 4d 69 20 XX XX XX XX XX XX XX XX XX XX 20 e
4. addr: d7:c4:e6:xx:xx:xx type: 0
rssi: -62
response type: 0
advertiser data: 02 01 06 1b ff XX XX XX ff ff ff ff ff ff ff ff e
5. addr: d7:c4:e6:xx:xx:xx type: 0
rssi: -62
response type: 4
advertiser data: 10 09 4d 69 20 XX XX XX XX XX XX XX XX XX XX 20 e
nsh>

bmp180
------

Expand Down
2 changes: 1 addition & 1 deletion Documentation/platforms/risc-v/esp32c6/index.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -425,7 +425,7 @@ Peripheral Support NOTES
============== ======= ====================
ADC Yes Oneshot and internal temperature sensor
AES Yes
Bluetooth No
Bluetooth Yes
CAN/TWAI Yes
DMA Yes
ECC No
Expand Down
68 changes: 68 additions & 0 deletions Documentation/platforms/risc-v/esp32h2/boards/esp32h2-devkit/index.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -146,6 +146,74 @@ autopm
This configuration makes the device automatically enter the low power consumption mode
when in the idle state, powering off the cpu and other peripherals.

ble
---

This configuration is used to enable the Bluetooth Low Energy (BLE) of
ESP32-H2 chip.

To test it, just run the following commands below.

Confirm that bnep interface exist::

nsh> ifconfig
bnep0 Link encap:UNSPEC at DOWN mtu -9
inet addr:0.0.0.0 DRaddr:0.0.0.0 Mask:0.0.0.0

Get basic information from it::

nsh> bt bnep0 info
Device: bnep0
BDAddr: 58:41:81:40:02:08
Flags: 0000
Free: 20
ACL: 20
SCO: 0
Max:
ACL: 24
SCO: 0
MTU:
ACL: 70
SCO: 70
Policy: 0
Type: 0

Start the scanning process::

nsh> bt bnep0 scan start

Wait a little bit before stopping it.

Then after some minutes stop it::

nsh> bt bnep0 scan stop

Get the list of BLE devices found around you::

nsh> bt bnep0 scan get
Scan result:
1. addr: d7:c4:e6:xx:xx:xx type: 0
rssi: -62
response type: 4
advertiser data: 10 09 4d 69 20 XX XX XX XX XX XX XX XX XX XX 20 e
2. addr: cb:23:18:xx:xx:xx type: 0
rssi: -60
response type: 0
advertiser data: 02 01 06 1b ff XX XX XX ff ff ff ff ff ff ff ff 8
3. addr: cb:23:18:xx:xx:xx type: 0
rssi: -60
response type: 4
advertiser data: 10 09 4d 69 20 XX XX XX XX XX XX XX XX XX XX 20 e
4. addr: d7:c4:e6:xx:xx:xx type: 0
rssi: -62
response type: 0
advertiser data: 02 01 06 1b ff XX XX XX ff ff ff ff ff ff ff ff e
5. addr: d7:c4:e6:xx:xx:xx type: 0
rssi: -62
response type: 4
advertiser data: 10 09 4d 69 20 XX XX XX XX XX XX XX XX XX XX 20 e
nsh>

bmp180
------

Expand Down
2 changes: 1 addition & 1 deletion Documentation/platforms/risc-v/esp32h2/index.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -416,7 +416,7 @@ Peripheral Support NOTES
============== ======= ====================
ADC Yes Oneshot and internal temperature sensor
AES Yes
Bluetooth No
Bluetooth Yes
CAN/TWAI Yes
DMA Yes
DS No
Expand Down
8 changes: 6 additions & 2 deletions arch/risc-v/src/common/espressif/CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -157,7 +157,9 @@ if(CONFIG_ESPRESSIF_WIRELESS)
list(APPEND SRCS esp_wifi_api.c)
list(APPEND SRCS esp_wlan_netdev.c)
endif()
list(APPEND SRCS esp_wifi_utils.c)
if(NOT CONFIG_ARCH_CHIP_ESP32H2)
list(APPEND SRCS esp_wifi_utils.c)
endif()
endif()

if(CONFIG_ESP_MCPWM)
Expand Down Expand Up @@ -221,7 +223,7 @@ if(DEFINED ENV{ESP_HAL_3RDPARTY_VERSION})
CACHE STRING "ESP HAL 3rdparty version")
else()
set(ESP_HAL_3RDPARTY_VERSION
e8d8638febf5310bf5b8f9bd04cf7fab9e9a4cb0
0eb59f7e02a4735f2b9a78797e691b66740fcadb
CACHE STRING "ESP HAL 3rdparty version")
endif()

Expand Down Expand Up @@ -321,6 +323,8 @@ if(NOT IS_DIRECTORY "${ESP_HAL_3RDPARTY_REPO}")
COMMAND
git submodule --quiet update --init --depth=1 components/esp_phy/lib
components/esp_wifi/lib components/bt/controller/lib_esp32c3_family
components/bt/controller/lib_esp32c6/esp32c6-bt-lib
components/bt/controller/lib_esp32h2/esp32h2-bt-lib
components/esp_coex/lib
WORKING_DIRECTORY ${ESP_HAL_3RDPARTY_REPO}
RESULT_VARIABLE GIT_SUBMODULE_RESULT)
Expand Down
2 changes: 1 addition & 1 deletion arch/risc-v/src/common/espressif/Kconfig
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Original file line number Diff line number Diff line change
Expand Up @@ -2062,7 +2062,7 @@ config ESPRESSIF_WIFI

config ESPRESSIF_BLE
bool "BLE"
depends on ARCH_CHIP_ESP32C3
depends on !ARCH_CHIP_ESP32P4
default n
select ESPRESSIF_WIRELESS
---help---
Expand Down
8 changes: 5 additions & 3 deletions arch/risc-v/src/common/espressif/Make.defs
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Original file line number Diff line number Diff line change
Expand Up @@ -162,7 +162,9 @@ ifeq ($(CONFIG_ESPRESSIF_WIRELESS),y)
CHIP_CSRCS += esp_wifi_api.c
CHIP_CSRCS += esp_wlan_netdev.c
endif
CHIP_CSRCS += esp_wifi_utils.c
ifneq ($(CONFIG_ARCH_CHIP_ESP32H2),y)
CHIP_CSRCS += esp_wifi_utils.c
endif
endif

ifeq ($(CONFIG_ESP_MCPWM),y)
Expand Down Expand Up @@ -233,7 +235,7 @@ endif

ESP_HAL_3RDPARTY_REPO = esp-hal-3rdparty
ifndef ESP_HAL_3RDPARTY_VERSION
ESP_HAL_3RDPARTY_VERSION = e8d8638febf5310bf5b8f9bd04cf7fab9e9a4cb0
ESP_HAL_3RDPARTY_VERSION = 0eb59f7e02a4735f2b9a78797e691b66740fcadb
endif

ifndef ESP_HAL_3RDPARTY_URL
Expand Down Expand Up @@ -283,7 +285,7 @@ endif
ifeq ($(CONFIG_ESPRESSIF_WIRELESS),y)
ifneq ($(USE_NXTMPDIR_ESP_REPO_DIRECTLY),y)
$(Q) echo "Espressif HAL for 3rd Party Platforms: initializing submodules..."
$(Q) git -C chip/$(ESP_HAL_3RDPARTY_REPO) submodule --quiet update --init $(GIT_DEPTH_PARAMETER) components/esp_phy/lib components/esp_wifi/lib components/bt/controller/lib_esp32c3_family components/esp_coex/lib
$(Q) git -C chip/$(ESP_HAL_3RDPARTY_REPO) submodule --quiet update --init $(GIT_DEPTH_PARAMETER) components/esp_phy/lib components/esp_wifi/lib components/bt/controller/lib_esp32c3_family components/bt/controller/lib_esp32c6/esp32c6-bt-lib components/bt/controller/lib_esp32h2/esp32h2-bt-lib components/esp_coex/lib
$(Q) git -C chip/$(ESP_HAL_3RDPARTY_REPO)/components/mbedtls/mbedtls reset --quiet --hard
endif
$(Q) echo "Applying patches..."
Expand Down
80 changes: 75 additions & 5 deletions arch/risc-v/src/common/espressif/Wireless.cmake
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Original file line number Diff line number Diff line change
Expand Up @@ -40,15 +40,86 @@ target_include_directories(

nuttx_add_extra_library(
${ESP_HAL_3RDPARTY_REPO}/components/esp_phy/lib/${CHIP_SERIES}/libphy.a
${ESP_HAL_3RDPARTY_REPO}/components/esp_coex/lib/${CHIP_SERIES}/libcoexist.a
${ESP_HAL_3RDPARTY_REPO}/components/esp_wifi/lib/${CHIP_SERIES}/libmesh.a)
${ESP_HAL_3RDPARTY_REPO}/components/esp_coex/lib/${CHIP_SERIES}/libcoexist.a)

if(NOT CONFIG_ARCH_CHIP_ESP32H2)
nuttx_add_extra_library(
${ESP_HAL_3RDPARTY_REPO}/components/esp_wifi/lib/${CHIP_SERIES}/libmesh.a
${ESP_HAL_3RDPARTY_REPO}/components/esp_wifi/lib/${CHIP_SERIES}/libespnow.a)
endif()

# ##############################################################################
# ESP32-C6 / ESP32-H2 BLE host and controller sources
# ##############################################################################

if((CONFIG_ARCH_CHIP_ESP32C6 OR CONFIG_ARCH_CHIP_ESP32H2)
AND CONFIG_ESPRESSIF_BLE)
target_include_directories(
arch
PRIVATE
${ESP_HAL_3RDPARTY_REPO}/components/bt/common/osi/include
${ESP_HAL_3RDPARTY_REPO}/components/bt/common/tinycrypt/include
${ESP_HAL_3RDPARTY_REPO}/components/bt/common/tinycrypt/port
${ESP_HAL_3RDPARTY_REPO}/components/bt/host/nimble/nimble/porting/nimble/include
${ESP_HAL_3RDPARTY_REPO}/components/bt/host/nimble/port/include
${ESP_HAL_3RDPARTY_REPO}/components/bt/include/${CHIP_SERIES}/include
${ESP_HAL_3RDPARTY_REPO}/components/bt/porting/include
${ESP_HAL_3RDPARTY_REPO}/components/bt/porting/transport/include
${ESP_HAL_3RDPARTY_REPO}/components/esp_common/include
${ESP_HAL_3RDPARTY_REPO}/components/esp_phy/include
${ESP_HAL_3RDPARTY_REPO}/components/esp_phy/${CHIP_SERIES}/include
${ESP_HAL_3RDPARTY_REPO}/nuttx/src/platform/nimble/include)

set(ESP_BLE_HOST_SRCS
${ESP_HAL_3RDPARTY_REPO}/components/bt/common/tinycrypt/src/ecc.c
${ESP_HAL_3RDPARTY_REPO}/components/bt/common/tinycrypt/src/ecc_dh.c
${ESP_HAL_3RDPARTY_REPO}/components/bt/common/tinycrypt/src/ecc_platform_specific.c
${ESP_HAL_3RDPARTY_REPO}/components/bt/common/tinycrypt/port/esp_tinycrypt_port.c
${ESP_HAL_3RDPARTY_REPO}/components/bt/common/tinycrypt/src/sha256.c
${ESP_HAL_3RDPARTY_REPO}/components/bt/common/tinycrypt/src/utils.c
${ESP_HAL_3RDPARTY_REPO}/components/bt/porting/mem/bt_osi_mem.c
${ESP_HAL_3RDPARTY_REPO}/components/bt/porting/mem/os_msys_init.c
${ESP_HAL_3RDPARTY_REPO}/components/bt/porting/transport/src/hci_transport.c
${ESP_HAL_3RDPARTY_REPO}/components/bt/porting/transport/driver/vhci/hci_driver_standard.c
${ESP_HAL_3RDPARTY_REPO}/components/bt/controller/${CHIP_SERIES}/ble.c
${ESP_HAL_3RDPARTY_REPO}/components/bt/controller/${CHIP_SERIES}/bt.c
${ESP_HAL_3RDPARTY_REPO}/components/esp_hal_security/ecc_hal.c
${ESP_HAL_3RDPARTY_REPO}/components/esp_phy/src/btbb_init.c
${ESP_HAL_3RDPARTY_REPO}/nuttx/src/platform/nimble/src/npl_os.c)

target_sources(arch PRIVATE ${ESP_BLE_HOST_SRCS})

target_compile_definitions(arch PRIVATE ESP_PLATFORM=1)

if(CONFIG_ARCH_CHIP_ESP32H2)
target_sources(
arch
PRIVATE
${ESP_HAL_3RDPARTY_REPO}/components/esp_phy/src/lib_printf.c
${ESP_HAL_3RDPARTY_REPO}/components/esp_phy/src/phy_common.c
${ESP_HAL_3RDPARTY_REPO}/components/esp_phy/src/phy_init_esp32hxx.c)
endif()
endif()

# ##############################################################################
# BLE prebuilt libraries (Wireless.mk lines 30-32, 65-72; chip Make.defs)
# ##############################################################################

if(CONFIG_ESPRESSIF_BLE)
nuttx_add_extra_library(
${ESP_HAL_3RDPARTY_REPO}/components/esp_phy/lib/${CHIP_SERIES}/libbtbb.a)

if(CONFIG_ARCH_CHIP_ESP32C3)
nuttx_add_extra_library(
${ESP_HAL_3RDPARTY_REPO}/components/bt/controller/lib_esp32c3_family/esp32c3/libbtdm_app.a
${ESP_HAL_3RDPARTY_REPO}/components/bt/controller/lib_esp32c3_family/${CHIP_SERIES}/libbtdm_app.a
)
elseif(CONFIG_ARCH_CHIP_ESP32C6)
nuttx_add_extra_library(
${ESP_HAL_3RDPARTY_REPO}/components/bt/controller/lib_esp32c6/esp32c6-bt-lib/esp32c6/libble_app.a
)
elseif(CONFIG_ARCH_CHIP_ESP32H2)
nuttx_add_extra_library(
${ESP_HAL_3RDPARTY_REPO}/components/bt/controller/lib_esp32h2/esp32h2-bt-lib/libble_app.a
)
endif()
endif()
Expand All @@ -57,8 +128,7 @@ if(CONFIG_ESPRESSIF_WIFI)
nuttx_add_extra_library(
${ESP_HAL_3RDPARTY_REPO}/components/esp_wifi/lib/${CHIP_SERIES}/libcore.a
${ESP_HAL_3RDPARTY_REPO}/components/esp_wifi/lib/${CHIP_SERIES}/libnet80211.a
${ESP_HAL_3RDPARTY_REPO}/components/esp_wifi/lib/${CHIP_SERIES}/libpp.a
${ESP_HAL_3RDPARTY_REPO}/components/esp_wifi/lib/${CHIP_SERIES}/libespnow.a)
${ESP_HAL_3RDPARTY_REPO}/components/esp_wifi/lib/${CHIP_SERIES}/libpp.a)
if(CONFIG_WPA_WAPI_PSK)
nuttx_add_extra_library(
${ESP_HAL_3RDPARTY_REPO}/components/esp_wifi/lib/${CHIP_SERIES}/libwapi.a)
Expand Down
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