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feat(ble): Enable BLE for ESP32-P4 through esp-hosted
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‎cores/esp32/esp32-hal-hosted.c‎

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// Copyright 2015-2025 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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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,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "sdkconfig.h"
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#if defined(CONFIG_ESP_HOSTED_ENABLE_BT_NIMBLE) || defined(CONFIG_ESP_WIFI_REMOTE_ENABLED)
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#include "esp32-hal-hosted.h"
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#include "esp32-hal-log.h"
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#include "esp_hosted_transport_config.h"
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extern esp_err_t esp_hosted_init();
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extern esp_err_t esp_hosted_deinit();
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static bool hosted_initialized = false;
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static bool hosted_ble_active = false;
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static bool hosted_wifi_active = false;
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static sdio_pin_config_t sdio_pin_config = {
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#ifdef BOARD_HAS_SDIO_ESP_HOSTED
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.pin_clk = BOARD_SDIO_ESP_HOSTED_CLK,
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.pin_cmd = BOARD_SDIO_ESP_HOSTED_CMD,
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.pin_d0 = BOARD_SDIO_ESP_HOSTED_D0,
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.pin_d1 = BOARD_SDIO_ESP_HOSTED_D1,
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.pin_d2 = BOARD_SDIO_ESP_HOSTED_D2,
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.pin_d3 = BOARD_SDIO_ESP_HOSTED_D3,
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.pin_reset = BOARD_SDIO_ESP_HOSTED_RESET
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#else
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.pin_clk = CONFIG_ESP_SDIO_PIN_CLK,
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.pin_cmd = CONFIG_ESP_SDIO_PIN_CMD,
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.pin_d0 = CONFIG_ESP_SDIO_PIN_D0,
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.pin_d1 = CONFIG_ESP_SDIO_PIN_D1,
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.pin_d2 = CONFIG_ESP_SDIO_PIN_D2,
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.pin_d3 = CONFIG_ESP_SDIO_PIN_D3,
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.pin_reset = CONFIG_ESP_SDIO_GPIO_RESET_SLAVE
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#endif
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};
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// Forward declarations
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bool hostedInit();
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bool hostedDeinit();
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bool hostedInitBLE() {
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log_i("Initializing ESP-Hosted for BLE");
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hosted_ble_active = true;
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return hostedInit();
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}
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bool hostedInitWiFi() {
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log_i("Initializing ESP-Hosted for WiFi");
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hosted_wifi_active = true;
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return hostedInit();
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}
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bool hostedDeinitBLE() {
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log_i("Deinitializing ESP-Hosted for BLE");
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hosted_ble_active = false;
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if (!hosted_wifi_active) {
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return hostedDeinit();
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} else {
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log_i("ESP-Hosted is still being used by Wi-Fi. Skipping deinit.");
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return true;
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}
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}
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bool hostedDeinitWiFi() {
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log_i("Deinitializing ESP-Hosted for WiFi");
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hosted_wifi_active = false;
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if (!hosted_ble_active) {
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return hostedDeinit();
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} else {
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log_i("ESP-Hosted is still being used by BLE. Skipping deinit.");
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return true;
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}
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}
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bool hostedInit() {
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if (!hosted_initialized) {
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log_i("Initializing ESP-Hosted");
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log_d("SDIO pins: clk=%d, cmd=%d, d0=%d, d1=%d, d2=%d, d3=%d, rst=%d", sdio_pin_config.pin_clk, sdio_pin_config.pin_cmd, sdio_pin_config.pin_d0, sdio_pin_config.pin_d1, sdio_pin_config.pin_d2, sdio_pin_config.pin_d3, sdio_pin_config.pin_reset);
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hosted_initialized = true;
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struct esp_hosted_sdio_config conf = INIT_DEFAULT_HOST_SDIO_CONFIG();
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conf.pin_clk.pin = sdio_pin_config.pin_clk;
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conf.pin_cmd.pin = sdio_pin_config.pin_cmd;
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conf.pin_d0.pin = sdio_pin_config.pin_d0;
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conf.pin_d1.pin = sdio_pin_config.pin_d1;
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conf.pin_d2.pin = sdio_pin_config.pin_d2;
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conf.pin_d3.pin = sdio_pin_config.pin_d3;
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conf.pin_reset.pin = sdio_pin_config.pin_reset;
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// esp_hosted_sdio_set_config() will fail on second attempt but here temporarily to not cause exception on reinit
101+
if (esp_hosted_sdio_set_config(&conf) != ESP_OK || esp_hosted_init() != ESP_OK) {
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log_e("esp_hosted_init failed!");
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hosted_initialized = false;
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return false;
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}
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log_i("ESP-Hosted initialized!");
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}
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// Attach pins to PeriMan here
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// Slave chip model is CONFIG_IDF_SLAVE_TARGET
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// sdio_pin_config.pin_clk
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// sdio_pin_config.pin_cmd
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// sdio_pin_config.pin_d0
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// sdio_pin_config.pin_d1
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// sdio_pin_config.pin_d2
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// sdio_pin_config.pin_d3
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// sdio_pin_config.pin_reset
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return true;
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}
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bool hostedSetPins(int8_t clk, int8_t cmd, int8_t d0, int8_t d1, int8_t d2, int8_t d3, int8_t rst) {
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if (clk < 0 || cmd < 0 || d0 < 0 || d1 < 0 || d2 < 0 || d3 < 0 || rst < 0) {
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log_e("All SDIO pins must be defined");
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return false;
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}
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if (hosted_initialized) {
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int8_t current_clk, current_cmd, current_d0, current_d1, current_d2, current_d3, current_rst;
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hostedGetPins(&current_clk, &current_cmd, &current_d0, &current_d1, &current_d2, &current_d3, &current_rst);
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log_e("SDIO pins must be set before ESP-Hosted is initialized");
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log_e("Current pins used: clk=%d, cmd=%d, d0=%d, d1=%d, d2=%d, d3=%d, rst=%d", current_clk, current_cmd, current_d0, current_d1, current_d2, current_d3, current_rst);
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return false;
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}
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sdio_pin_config.pin_clk = clk;
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sdio_pin_config.pin_cmd = cmd;
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sdio_pin_config.pin_d0 = d0;
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sdio_pin_config.pin_d1 = d1;
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sdio_pin_config.pin_d2 = d2;
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sdio_pin_config.pin_d3 = d3;
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sdio_pin_config.pin_reset = rst;
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return true;
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}
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void hostedGetPins(int8_t *clk, int8_t *cmd, int8_t *d0, int8_t *d1, int8_t *d2, int8_t *d3, int8_t *rst) {
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*clk = sdio_pin_config.pin_clk;
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*cmd = sdio_pin_config.pin_cmd;
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*d0 = sdio_pin_config.pin_d0;
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*d1 = sdio_pin_config.pin_d1;
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*d2 = sdio_pin_config.pin_d2;
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*d3 = sdio_pin_config.pin_d3;
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*rst = sdio_pin_config.pin_reset;
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}
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bool hostedIsBLEActive() {
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return hosted_ble_active;
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}
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bool hostedIsWiFiActive() {
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return hosted_wifi_active;
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}
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bool hostedDeinit() {
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if (!hosted_initialized) {
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log_e("ESP-Hosted is not initialized");
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return false;
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}
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if (esp_hosted_deinit() != ESP_OK) {
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log_e("esp_hosted_deinit failed!");
172+
return false;
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}
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hosted_initialized = false;
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return true;
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}
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bool hostedIsInitialized() {
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return hosted_initialized;
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}
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#endif /* defined(CONFIG_ESP_HOSTED_ENABLE_BT_NIMBLE) || defined(CONFIG_ESP_WIFI_REMOTE_ENABLED) */

‎cores/esp32/esp32-hal-hosted.h‎

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// Copyright 2015-2025 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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7+
// 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
10+
// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12+
// See the License for the specific language governing permissions and
13+
// limitations under the License.
14+
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#ifndef MAIN_ESP32_HAL_HOSTED_H_
16+
#define MAIN_ESP32_HAL_HOSTED_H_
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18+
#include "sdkconfig.h"
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#if defined(CONFIG_ESP_HOSTED_ENABLE_BT_NIMBLE) || defined(CONFIG_ESP_WIFI_REMOTE_ENABLED)
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#include "stdint.h"
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#include "stdbool.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct {
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uint8_t pin_clk;
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uint8_t pin_cmd;
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uint8_t pin_d0;
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uint8_t pin_d1;
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uint8_t pin_d2;
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uint8_t pin_d3;
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uint8_t pin_reset;
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} sdio_pin_config_t;
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bool hostedInitBLE();
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bool hostedInitWiFi();
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bool hostedDeinitBLE();
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bool hostedDeinitWiFi();
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bool hostedIsInitialized();
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bool hostedIsBLEActive();
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bool hostedIsWiFiActive();
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bool hostedSetPins(int8_t clk, int8_t cmd, int8_t d0, int8_t d1, int8_t d2, int8_t d3, int8_t rst);
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void hostedGetPins(int8_t *clk, int8_t *cmd, int8_t *d0, int8_t *d1, int8_t *d2, int8_t *d3, int8_t *rst);
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#ifdef __cplusplus
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}
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#endif
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#endif /* defined(CONFIG_ESP_HOSTED_ENABLE_BT_NIMBLE) || defined(CONFIG_ESP_WIFI_REMOTE_ENABLED) */
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#endif /* MAIN_ESP32_HAL_HOSTED_H_ */

‎cores/esp32/esp32-hal.h‎

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@@ -100,6 +100,7 @@ void yield(void);
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#include "esp32-hal-psram.h"
101101
#include "esp32-hal-rgb-led.h"
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#include "esp32-hal-cpu.h"
103+
#include "esp32-hal-hosted.h"
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void analogWrite(uint8_t pin, int value);
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void analogWriteFrequency(uint8_t pin, uint32_t freq);

‎libraries/BLE/src/BLE2901.cpp‎

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@@ -16,9 +16,8 @@
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*/
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1818
#include "soc/soc_caps.h"
19-
#if SOC_BLE_SUPPORTED
20-
2119
#include "sdkconfig.h"
20+
#if defined(SOC_BLE_SUPPORTED) || defined(CONFIG_ESP_HOSTED_ENABLE_BT_NIMBLE)
2221
#if defined(CONFIG_BLUEDROID_ENABLED) || defined(CONFIG_NIMBLE_ENABLED)
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2423
/***************************************************************************
@@ -56,4 +55,4 @@ void BLE2901::setDescription(const String &userDesc) {
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}
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5857
#endif /* CONFIG_BLUEDROID_ENABLED || CONFIG_NIMBLE_ENABLED */
59-
#endif /* SOC_BLE_SUPPORTED */
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#endif /* SOC_BLE_SUPPORTED || CONFIG_ESP_HOSTED_ENABLE_BT_NIMBLE */

‎libraries/BLE/src/BLE2901.h‎

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@@ -19,9 +19,8 @@
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#define COMPONENTS_CPP_UTILS_BLE2901_H_
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#include "soc/soc_caps.h"
22-
#if SOC_BLE_SUPPORTED
23-
2422
#include "sdkconfig.h"
23+
#if defined(SOC_BLE_SUPPORTED) || defined(CONFIG_ESP_HOSTED_ENABLE_BT_NIMBLE)
2524
#if defined(CONFIG_BLUEDROID_ENABLED) || defined(CONFIG_NIMBLE_ENABLED)
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2726
/***************************************************************************
@@ -44,5 +43,6 @@ class BLE2901 : public BLEDescriptor {
4443
}; // BLE2901
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4645
#endif /* CONFIG_BLUEDROID_ENABLED || CONFIG_NIMBLE_ENABLED */
47-
#endif /* SOC_BLE_SUPPORTED */
46+
#endif /* SOC_BLE_SUPPORTED || CONFIG_ESP_HOSTED_ENABLE_BT_NIMBLE */
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4848
#endif /* COMPONENTS_CPP_UTILS_BLE2901_H_ */

‎libraries/BLE/src/BLE2902.cpp‎

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@@ -15,9 +15,8 @@
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*/
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1717
#include "soc/soc_caps.h"
18-
#if SOC_BLE_SUPPORTED
19-
2018
#include "sdkconfig.h"
19+
#if defined(SOC_BLE_SUPPORTED) || defined(CONFIG_ESP_HOSTED_ENABLE_BT_NIMBLE)
2120
#if defined(CONFIG_BLUEDROID_ENABLED) || defined(CONFIG_NIMBLE_ENABLED)
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2322
/***************************************************************************
@@ -126,4 +125,4 @@ void BLE2902::setNotifications(bool flag) {
126125
}
127126

128127
#endif /* CONFIG_BLUEDROID_ENABLED || CONFIG_NIMBLE_ENABLED */
129-
#endif /* SOC_BLE_SUPPORTED */
128+
#endif /* SOC_BLE_SUPPORTED || CONFIG_ESP_HOSTED_ENABLE_BT_NIMBLE */

‎libraries/BLE/src/BLE2902.h‎

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1313
#define COMPONENTS_CPP_UTILS_BLE2902_H_
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1515
#include "soc/soc_caps.h"
16-
#if SOC_BLE_SUPPORTED
17-
1816
#include "sdkconfig.h"
17+
#if defined(SOC_BLE_SUPPORTED) || defined(CONFIG_ESP_HOSTED_ENABLE_BT_NIMBLE)
1918
#if defined(CONFIG_BLUEDROID_ENABLED) || defined(CONFIG_NIMBLE_ENABLED)
2019

2120
/***************************************************************************
@@ -62,5 +61,6 @@ This class will be removed in a future version.")]] BLE2902 : public BLEDescript
6261
}; // BLE2902
6362

6463
#endif /* CONFIG_BLUEDROID_ENABLED || CONFIG_NIMBLE_ENABLED */
65-
#endif /* SOC_BLE_SUPPORTED */
64+
#endif /* SOC_BLE_SUPPORTED || CONFIG_ESP_HOSTED_ENABLE_BT_NIMBLE */
65+
6666
#endif /* COMPONENTS_CPP_UTILS_BLE2902_H_ */

‎libraries/BLE/src/BLE2904.cpp‎

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@@ -13,10 +13,10 @@
1313
* See also:
1414
* https://www.bluetooth.com/specifications/gatt/viewer?attributeXmlFile=org.bluetooth.descriptor.gatt.characteristic_presentation_format.xml
1515
*/
16-
#include "soc/soc_caps.h"
17-
#if SOC_BLE_SUPPORTED
1816

17+
#include "soc/soc_caps.h"
1918
#include "sdkconfig.h"
19+
#if defined(SOC_BLE_SUPPORTED) || defined(CONFIG_ESP_HOSTED_ENABLE_BT_NIMBLE)
2020
#if defined(CONFIG_BLUEDROID_ENABLED) || defined(CONFIG_NIMBLE_ENABLED)
2121

2222
/***************************************************************************
@@ -85,4 +85,4 @@ void BLE2904::setUnit(uint16_t unit) {
8585
}
8686

8787
#endif /* CONFIG_BLUEDROID_ENABLED || CONFIG_NIMBLE_ENABLED */
88-
#endif /* SOC_BLE_SUPPORTED */
88+
#endif /* SOC_BLE_SUPPORTED || CONFIG_ESP_HOSTED_ENABLE_BT_NIMBLE */

‎libraries/BLE/src/BLE2904.h‎

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@@ -13,9 +13,8 @@
1313
#define COMPONENTS_CPP_UTILS_BLE2904_H_
1414

1515
#include "soc/soc_caps.h"
16-
#if SOC_BLE_SUPPORTED
17-
1816
#include "sdkconfig.h"
17+
#if defined(SOC_BLE_SUPPORTED) || defined(CONFIG_ESP_HOSTED_ENABLE_BT_NIMBLE)
1918
#if defined(CONFIG_BLUEDROID_ENABLED) || defined(CONFIG_NIMBLE_ENABLED)
2019

2120
/***************************************************************************
@@ -105,5 +104,6 @@ class BLE2904 : public BLEDescriptor {
105104
}; // BLE2904
106105

107106
#endif /* CONFIG_BLUEDROID_ENABLED || CONFIG_NIMBLE_ENABLED */
108-
#endif /* SOC_BLE_SUPPORTED */
107+
#endif /* SOC_BLE_SUPPORTED || CONFIG_ESP_HOSTED_ENABLE_BT_NIMBLE */
108+
109109
#endif /* COMPONENTS_CPP_UTILS_BLE2904_H_ */

‎libraries/BLE/src/BLEAddress.cpp‎

Lines changed: 2 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -10,9 +10,8 @@
1010
*/
1111

1212
#include "soc/soc_caps.h"
13-
#if SOC_BLE_SUPPORTED
14-
1513
#include "sdkconfig.h"
14+
#if defined(SOC_BLE_SUPPORTED) || defined(CONFIG_ESP_HOSTED_ENABLE_BT_NIMBLE)
1615
#if defined(CONFIG_BLUEDROID_ENABLED) || defined(CONFIG_NIMBLE_ENABLED)
1716

1817
/***************************************************************************
@@ -227,4 +226,4 @@ BLEAddress::BLEAddress(String stringAddress, uint8_t type) {
227226
#endif
228227

229228
#endif /* CONFIG_BLUEDROID_ENABLED || CONFIG_NIMBLE_ENABLED */
230-
#endif /* SOC_BLE_SUPPORTED */
229+
#endif /* SOC_BLE_SUPPORTED || CONFIG_ESP_HOSTED_ENABLE_BT_NIMBLE */

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