GitHub cs

Kconfig

@@ -233,6 +233,11 @@ choice
 		bool "Not support BLE Stack"
 endchoice
 
+config BLUETOOTH_LE_CS
+	bool "Bluetooth LE Channel Sounding supported"
+	depends on BLUETOOTH_STACK_LE_ZBLUE
+	default n
+
 config BLUETOOTH_LE_SCANNER_MAX_NUM
 	int "LE Scanner max register number"
 	default 2

Makefile

@@ -22,7 +22,7 @@ CSRCS += framework/common/*.c
 CSRCS += framework/api/bluetooth.c
 CSRCS += framework/api/bt_adapter.c
 CSRCS += framework/api/bt_device.c
-
+CSRCS += framework/api/bt_cs.c
 ifeq ($(CONFIG_BLUETOOTH_A2DP_SINK), y)
 CSRCS += framework/api/bt_a2dp_sink.c
 endif #CONFIG_BLUETOOTH_A2DP_SINK
@@ -72,6 +72,7 @@ ifeq ($(CONFIG_BLUETOOTH_BLE_AUDIO), y)
 CSRCS := framework/api/bt_lea*.c
 endif #CONFIG_BLUETOOTH_BLE_AUDIO
 
+
 ifeq ($(CONFIG_BLUETOOTH_FRAMEWORK_SOCKET_IPC), y)
 CSRCS += service/ipc/bluetooth_ipc.c
 CSRCS += framework/socket/bt_device.c
@@ -160,6 +161,11 @@ CSRCS += framework/socket/bt_trace.c
 CSRCS += service/ipc/socket/src/bt_socket_log.c
 endif #CONFIG_BLUETOOTH_BLE_AUDIO
 
+ifeq ($(CONFIG_BLUETOOTH_LE_CS), y)
+CSRCS += framework/socket/bt_cs.c
+CSRCS += service/ipc/socket/src/bt_socket_cs.c
+endif #CONFIG_BLUETOOTH_LE_CS
+
 CFLAGS += ${INCDIR_PREFIX}$(APPDIR)/frameworks/connectivity/bluetooth/service/ipc/socket/include
 ifeq ($(CONFIG_BLUETOOTH_FRAMEWORK_ASYNC), y)
 CSRCS += framework/socket/async/*.c
@@ -265,6 +271,9 @@ endif #CONFIG_BLUETOOTH_GATT_CLIENT
 ifeq ($(CONFIG_BLUETOOTH_GATT_SERVER), y)
 	CSRCS += service/stacks/zephyr/sal_gatt_server_interface.c
 endif #CONFIG_BLUETOOTH_GATT_SERVER
+ifeq ($(CONFIG_BLUETOOTH_LE_CS), y)
+	CSRCS += service/stacks/zephyr/sal_le_cs_interface.c
+endif #CONFIG_BLUETOOTH_LE_CS
 endif #CONFIG_BLUETOOTH_STACK_LE_ZBLUE
 
 endif
@@ -383,6 +392,11 @@ CSRCS += service/utils/btsnoop_writer.c
 CSRCS += service/utils/btsnoop_filter.c
 endif #CONFIG_BLUETOOTH_LOG
 
+ifeq ($(CONFIG_BLUETOOTH_LE_CS), y)
+  CSRCS += service/profiles/cs/*.c
+  CFLAGS += ${INCDIR_PREFIX}$(APPDIR)/frameworks/connectivity/bluetooth/service/profiles/cs
+endif #CONFIG_BLUETOOTH_CS
+
 ifeq ($(CONFIG_BLUETOOTH_HCI_FILTER), y)
 CSRCS += service/vhal/bt_hci_filter.c
 endif
@@ -508,6 +522,10 @@ ifeq ($(CONFIG_BLUETOOTH_STORAGE_UPDATE), y)
 	CSRCS += tools/storage_update/storage_tool.c
 endif #CONFIG_BLUETOOTH_STORAGE_UPDATE
 
+ifeq ($(CONFIG_BLUETOOTH_LE_CS), y)
+	CSRCS += tools/le_cs.c
+endif
+
 endif
 
 # framework/service/stack/tools dependence
@@ -544,7 +562,13 @@ ifneq ($(CONFIG_BLUETOOTH_STACK_BREDR_ZBLUE)$(CONFIG_BLUETOOTH_STACK_LE_ZBLUE),)
 	CFLAGS += ${INCDIR_PREFIX}$(APPDIR)/external/zblue/zblue/port/include/
 	CFLAGS += ${INCDIR_PREFIX}$(APPDIR)/external/zblue/zblue/subsys/bluetooth/host
 	CFLAGS += ${INCDIR_PREFIX}$(APPDIR)/external/zblue/zblue/subsys/settings/include/settings
+	CFLAGS += ${INCDIR_PREFIX}$(APPDIR)/external/zblue/zblue/subsys/bluetooth
 	CFLAGS += ${INCDIR_PREFIX}$(APPDIR)/external/zblue/zblue/port/include/kernel/include
+	CFLAGS += ${INCDIR_PREFIX}${APPDIR}/frameworks/connectivity/bluetooth/framework/include
+	CFLAGS += ${INCDIR_PREFIX}${APPDIR}/frameworks/connectivity/bluetooth/service/ipc/socket/include
+	CFLAGS += ${INCDIR_PREFIX}${APPDIR}frameworks/connectivity/bluetooth/service/profiles/cs
+	CFLAGS += ${INCDIR_PREFIX}${APPDIR}frameworks/connectivity/bluetooth/service/profiles/include
+	CFLAGS += ${INCDIR_PREFIX}${APPDIR}frameworks/connectivity/bluetooth/service/stacks/include
 endif
 	CFLAGS += ${INCDIR_PREFIX}$(APPDIR)/frameworks/connectivity/bluetooth/service/ipc
 endif

framework/api/bt_cs.c

@@ -0,0 +1,68 @@
+/****************************************************************************
+ *  Copyright (C) 2024 Xiaomi Corporation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ ***************************************************************************/
+#define LOG_TAG "channel_sounding_api"
+
+#include <stdint.h>
+
+#include "bt_cs.h"
+#include "bt_internal.h"
+#include "bt_profile.h"
+#include "cs_service.h"
+#include "service_manager.h"
+#include "utils/log.h"
+
+#ifdef CONFIG_BLUETOOTH_LE_CS
+
+static bt_cs_interface_t* get_profile_service(void)
+{
+    return (bt_cs_interface_t*)service_manager_get_profile(PROFILE_CS);
+}
+void* BTSYMBOLS(bt_cs_register_callbacks)(bt_instance_t* ins, const cs_callbacks_t* callbacks)
+{
+    bt_cs_interface_t* profile = get_profile_service();
+
+    return profile->register_callbacks(NULL, callbacks);
+}
+
+bool BTSYMBOLS(bt_cs_unregister_callbacks)(bt_instance_t* ins, void* cookie)
+{
+    bt_cs_interface_t* profile = get_profile_service();
+
+    return profile->unregister_callbacks(NULL, cookie);
+}
+
+bt_status_t BTSYMBOLS(bt_cs_start_distance_measurement)(bt_instance_t* ins, bt_distance_measurement_params_t* params)
+{
+    bt_cs_interface_t* profile = get_profile_service();
+
+    return profile->start_distance_measurement(params);
+}
+
+bt_status_t BTSYMBOLS(bt_cs_stop_distance_measurement)(bt_instance_t* ins, bt_address_t* addr, uint8_t method, bool timeout)
+{
+    bt_cs_interface_t* profile = get_profile_service();
+
+    return profile->stop_distance_measurement(addr, method, timeout);
+}
+
+bt_status_t BTSYMBOLS(bt_cs_test)(bt_instance_t* ins, void* data, uint16_t len)
+{
+    bt_cs_interface_t* profile = get_profile_service();
+
+    return profile->cs_test(data, len);
+}
+
+#endif /* CONFIG_BLUETOOTH_LE_CS */

framework/include/bluetooth.h

@@ -459,11 +459,13 @@ typedef struct bt_instance {
     callbacks_list_t* a2dp_source_callbacks;
     callbacks_list_t* avrcp_target_callbacks;
     callbacks_list_t* avrcp_control_callbacks;
+    callbacks_list_t* cs_callbacks;
     void* adapter_cookie;
     void* a2dp_sink_cookie;
     void* a2dp_source_cookie;
     void* avrcp_target_cookie;
     void* avrcp_control_cookie;
+    void* cs_cookie;
 
     callbacks_list_t* hfp_ag_callbacks;
     callbacks_list_t* hfp_hf_callbacks;

framework/include/bt_addr.h

@@ -26,8 +26,9 @@ extern "C" {
 #define BT_ADDR_LENGTH 6 /*define the address length*/
 #define BT_ADDR_STR_LENGTH 18
 
+#ifndef bt_addr_str
 #define bt_addr_str(addr) bt_addr_bastr(addr)
-
+#endif
 /**
  * @cond
  */

framework/include/bt_cs.h

@@ -0,0 +1,78 @@
+/****************************************************************************
+ *  Copyright (C) 2025 Xiaomi Corporation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ ***************************************************************************/
+#ifndef __BT_CS_H__
+#define __BT_CS_H__
+
+#include "bt_addr.h"
+#include "bt_device.h"
+#include "bt_internal.h"
+#include <stddef.h>
+
+#ifndef BTSYMBOLS
+#define BTSYMBOLS(s) s
+#endif
+
+typedef void (*cs_distance_measure_started_cb)(void* cookie, bt_address_t* addr, uint8_t method);
+typedef void (*cs_distance_measure_stopped_cb)(void* cookie, bt_address_t* addr, uint8_t reason, uint8_t method);
+typedef void (*cs_distance_measure_result_cb)(void* cookie, bt_address_t* addr, uint8_t centimeter, uint8_t errorCentimeter,
+    uint8_t azimuthAngle, uint8_t errorAzimuthAngle, uint8_t altitudeAngle, uint8_t errorAltitudeAngle,
+    long elapsedRealtimeNanos, uint8_t confidenceLevel, double delaySpreadMeters,
+    uint8_t detectedAttackLevel, double velocityMetersPerSecond, uint8_t method);
+
+/**
+ * @cond
+ */
+typedef struct {
+    bt_address_t addr;
+    uint8_t method;
+    uint8_t role;
+    uint16_t interval_ms;
+    uint16_t duration_ms;
+    uint8_t submode;
+    uint8_t max_steps;
+    uint8_t mode0_steps;
+    uint8_t rtt_type;
+    uint8_t sync_phy;
+    uint8_t channel_map;
+    uint8_t antenna_paths_mask;
+    uint8_t vendor_specific;
+    uint8_t debug_flags;
+} bt_distance_measurement_params_t;
+
+typedef struct {
+    size_t size;
+    cs_distance_measure_started_cb cs_distance_measure_started_cb;
+    cs_distance_measure_stopped_cb cs_distance_measure_stopped_cb;
+    cs_distance_measure_result_cb cs_distance_measure_result_cb;
+} cs_callbacks_t;
+
+typedef enum {
+    METHOD_AUTO,
+    METHOD_RSSI,
+    METHOD_CS,
+} cs_method_t;
+
+/**
+ * @endcond
+ */
+void* BTSYMBOLS(bt_cs_register_callbacks)(bt_instance_t* ins, const cs_callbacks_t* callbacks);
+bool BTSYMBOLS(bt_cs_unregister_callbacks)(bt_instance_t* ins, void* cookie);
+bt_status_t BTSYMBOLS(bt_cs_start_distance_measurement)(bt_instance_t* ins, bt_distance_measurement_params_t* params);
+bt_status_t BTSYMBOLS(bt_cs_stop_distance_measurement)(bt_instance_t* ins, bt_address_t* addr, uint8_t method, bool timeout);
+bt_status_t BTSYMBOLS(bt_get_cs_max_supported_security_level)(bt_instance_t* ins, bt_address_t* addr);
+bt_status_t BTSYMBOLS(bt_cs_test)(bt_instance_t* ins, void* data, uint16_t len);
+
+#endif /* __BT_CS_H__ */

framework/include/bt_gatts.h

@@ -344,7 +344,7 @@ typedef struct {
     gatts_phy_read_cb_t on_phy_read;
     gatts_phy_updated_cb_t on_phy_updated;
     gatts_connection_parameter_changed_cb_t on_conn_param_changed;
-
+    
 } gatts_callbacks_t;
 
 /**

framework/include/bt_profile.h

@@ -24,6 +24,7 @@ extern "C" {
 #define PROFILE_A2DP_SINK_NAME "A2DP-Sink"
 #define PROFILE_AVRCP_CT_NAME "AVRCP-CT"
 #define PROFILE_AVRCP_TG_NAME "AVRCP-TG"
+#define PROFILE_CS_NAME "CS"
 #define PROFILE_HFP_HF_NAME "HFP-HF"
 #define PROFILE_HFP_AG_NAME "HFP-AG"
 #define PROFILE_SPP_NAME "SPP"
@@ -60,6 +61,7 @@ enum profile_id {
     PROFILE_LEAUDIO_MCS,
     PROFILE_LEAUDIO_TBS,
     PROFILE_LEAUDIO_VMICP,
+    PROFILE_CS,
     PROFILE_UNKOWN,
     PROFILE_MAX
 };