/****************************************************************************** * * Copyright (c) 2014 The Android Open Source Project * Copyright 2009-2012 Broadcom 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 BTIF_COMMON_H #define BTIF_COMMON_H #include #include #include #include #include #include "bt_types.h" #include "bta_api.h" #include "osi/include/log.h" #include "osi/include/osi.h" /******************************************************************************* * Constants & Macros ******************************************************************************/ #define ASSERTC(cond, msg, val) \ do { \ if (!(cond)) { \ LOG_ERROR(LOG_TAG, "### ASSERT : %s %s line %d %s (%d) ###", __FILE__, \ __func__, __LINE__, (msg), (val)); \ } \ } while (0) /* Calculate start of event enumeration; id is top 8 bits of event */ #define BTIF_SIG_START(id) ((id) << 8) /* For upstream the MSB bit is always SET */ #define BTIF_SIG_CB_BIT (0x8000) #define BTIF_SIG_CB_START(id) (((id) << 8) | BTIF_SIG_CB_BIT) /* * A memcpy(3) wrapper when copying memory that might not be aligned. * * On certain architectures, if the memcpy(3) arguments appear to be * pointing to aligned memory (e.g., struct pointers), the compiler might * generate optimized memcpy(3) code. However, if the original memory was not * aligned (e.g., because of incorrect "char *" to struct pointer casting), * the result code might trigger SIGBUS crash. * * As a short-term solution, we use the help of the maybe_non_aligned_memcpy() * macro to identify and fix such cases. In the future, we should fix the * problematic "char *" to struct pointer casting, and this macro itself should * be removed. */ #define maybe_non_aligned_memcpy(_a, _b, _c) \ memcpy((void*)(_a), (void*)(_b), (_c)) /* BTIF sub-systems */ #define BTIF_CORE 0 #define BTIF_DM 1 #define BTIF_HFP 2 #define BTIF_AV 3 #define BTIF_PAN 4 #define BTIF_HF_CLIENT 5 extern bt_callbacks_t* bt_hal_cbacks; #define HAL_CBACK(P_CB, P_CBACK, ...) \ do { \ if ((P_CB) && (P_CB)->P_CBACK) { \ BTIF_TRACE_API("%s: HAL %s->%s", __func__, #P_CB, #P_CBACK); \ (P_CB)->P_CBACK(__VA_ARGS__); \ } else { \ ASSERTC(0, "Callback is NULL", 0); \ } \ } while (0) /** * BTIF events for requests that require context switch to btif task * on downstreams path */ enum { BTIF_CORE_API_START = BTIF_SIG_START(BTIF_CORE), BTIF_CORE_STORAGE_NO_ACTION, BTIF_CORE_STORAGE_ADAPTER_WRITE, BTIF_CORE_STORAGE_ADAPTER_READ, BTIF_CORE_STORAGE_ADAPTER_READ_ALL, BTIF_CORE_STORAGE_REMOTE_WRITE, BTIF_CORE_STORAGE_REMOTE_READ, BTIF_CORE_STORAGE_REMOTE_READ_ALL, BTIF_CORE_STORAGE_READ_ALL, BTIF_CORE_STORAGE_NOTIFY_STATUS, /* add here */ BTIF_DM_API_START = BTIF_SIG_START(BTIF_DM), BTIF_DM_ENABLE_SERVICE, BTIF_DM_DISABLE_SERVICE, /* add here */ BTIF_HFP_API_START = BTIF_SIG_START(BTIF_HFP), /* add here */ BTIF_AV_API_START = BTIF_SIG_START(BTIF_AV), /* add here */ }; /** * BTIF events for callbacks that require context switch to btif task * on upstream path - Typically these would be non-BTA events * that are generated by the BTIF layer. */ enum { BTIF_CORE_CB_START = BTIF_SIG_CB_START(BTIF_CORE), /* add here */ BTIF_DM_CB_START = BTIF_SIG_CB_START(BTIF_DM), BTIF_DM_CB_DISCOVERY_STARTED, /* Discovery has started */ BTIF_DM_CB_CREATE_BOND, /* Create bond */ BTIF_DM_CB_REMOVE_BOND, /*Remove bond */ BTIF_DM_CB_HID_REMOTE_NAME, /* Remote name callback for HID device */ BTIF_DM_CB_BOND_STATE_BONDING, BTIF_DM_CB_LE_TX_TEST, /* BLE Tx Test command complete callback */ BTIF_DM_CB_LE_RX_TEST, /* BLE Rx Test command complete callback */ BTIF_DM_CB_LE_TEST_END, /* BLE Test mode end callback */ BTIF_HFP_CB_START = BTIF_SIG_CB_START(BTIF_HFP), BTIF_HFP_CB_AUDIO_CONNECTING, /* HF AUDIO connect has been sent to BTA successfully */ BTIF_PAN_CB_START = BTIF_SIG_CB_START(BTIF_PAN), BTIF_PAN_CB_DISCONNECTING, /* PAN Disconnect has been sent to BTA successfully */ BTIF_HF_CLIENT_CLIENT_CB_START = BTIF_SIG_CB_START(BTIF_HF_CLIENT), BTIF_HF_CLIENT_CB_AUDIO_CONNECTING, /* AUDIO connect has been sent to BTA successfully */ }; /******************************************************************************* * Type definitions for callback functions ******************************************************************************/ typedef void(tBTIF_CBACK)(uint16_t event, char* p_param); typedef void(tBTIF_COPY_CBACK)(uint16_t event, char* p_dest, char* p_src); /******************************************************************************* * Type definitions and return values ******************************************************************************/ /* this type handles all btif context switches between BTU and HAL */ typedef struct { BT_HDR hdr; tBTIF_CBACK* p_cb; /* context switch callback */ /* parameters passed to callback */ uint16_t event; /* message event id */ char __attribute__((aligned)) p_param[]; /* parameter area needs to be last */ } tBTIF_CONTEXT_SWITCH_CBACK; /******************************************************************************* * Functions ******************************************************************************/ extern bt_status_t do_in_jni_thread(base::OnceClosure task); extern bt_status_t do_in_jni_thread(const base::Location& from_here, base::OnceClosure task); extern bool is_on_jni_thread(); extern base::MessageLoop* get_jni_message_loop(); /** * This template wraps callback into callback that will be executed on jni * thread */ template base::Callback jni_thread_wrapper(const base::Location& from_here, base::Callback cb) { return base::Bind( [](const base::Location& from_here, base::Callback cb, Args... args) { do_in_jni_thread(from_here, base::Bind(cb, std::forward(args)...)); }, from_here, std::move(cb)); } tBTA_SERVICE_MASK btif_get_enabled_services_mask(void); bt_status_t btif_enable_service(tBTA_SERVICE_ID service_id); bt_status_t btif_disable_service(tBTA_SERVICE_ID service_id); int btif_is_enabled(void); /** * BTIF_Events */ void btif_enable_bluetooth_evt(tBTA_STATUS status); void btif_disable_bluetooth_evt(void); void btif_adapter_properties_evt(bt_status_t status, uint32_t num_props, bt_property_t* p_props); void btif_remote_properties_evt(bt_status_t status, RawAddress* remote_addr, uint32_t num_props, bt_property_t* p_props); void bte_load_did_conf(const char* p_path); void bte_main_boot_entry(void); void bte_main_enable(void); void bte_main_disable(void); void bte_main_cleanup(void); void bte_main_postload_cfg(void); bt_status_t btif_transfer_context(tBTIF_CBACK* p_cback, uint16_t event, char* p_params, int param_len, tBTIF_COPY_CBACK* p_copy_cback); void btif_init_ok(UNUSED_ATTR uint16_t event, UNUSED_ATTR char* p_param); #endif /* BTIF_COMMON_H */