Loading system/stack/Android.bp +2 −0 Original line number Original line Diff line number Diff line Loading @@ -136,6 +136,7 @@ cc_library_static { "acl/btm_pm.cc", "acl/btm_pm.cc", "btm/btm_sco.cc", "btm/btm_sco.cc", "btm/btm_sco_hci.cc", "btm/btm_sco_hci.cc", "btm/btm_sco_hfp_hal.cc", "btm/btm_iso.cc", "btm/btm_iso.cc", "btm/btm_sec.cc", "btm/btm_sec.cc", "btm/btm_scn.cc", "btm/btm_scn.cc", Loading Loading @@ -819,6 +820,7 @@ cc_test { "btm/btm_main.cc", "btm/btm_main.cc", "btm/btm_sco.cc", "btm/btm_sco.cc", "btm/btm_sco_hci.cc", "btm/btm_sco_hci.cc", "btm/btm_sco_hfp_hal.cc", "btm/btm_scn.cc", "btm/btm_scn.cc", "btm/btm_sec.cc", "btm/btm_sec.cc", "metrics/stack_metrics_logging.cc", "metrics/stack_metrics_logging.cc", Loading system/stack/BUILD.gn +1 −0 Original line number Original line Diff line number Diff line Loading @@ -122,6 +122,7 @@ source_set("stack") { "btm/btm_scn.cc", "btm/btm_scn.cc", "btm/btm_sco.cc", "btm/btm_sco.cc", "btm/btm_sco_hci.cc", "btm/btm_sco_hci.cc", "btm/btm_sco_hfp_hal_linux.cc", "btm/btm_sec.cc", "btm/btm_sec.cc", "btu/btu_hcif.cc", "btu/btu_hcif.cc", "btu/btu_task.cc", "btu/btu_task.cc", Loading system/stack/btm/btm_sco.h +2 −0 Original line number Original line Diff line number Diff line Loading @@ -19,6 +19,7 @@ #include <cstdint> #include <cstdint> #include <string> #include <string> #include "btm_sco_hfp_hal.h" #include "device/include/esco_parameters.h" #include "device/include/esco_parameters.h" #include "stack/include/btm_api_types.h" #include "stack/include/btm_api_types.h" Loading Loading @@ -137,6 +138,7 @@ typedef struct { void Init() { void Init() { def_esco_parms = esco_parameters_for_codec(ESCO_CODEC_CVSD_S3); def_esco_parms = esco_parameters_for_codec(ESCO_CODEC_CVSD_S3); hfp_hal_interface::init(); } } void Free() { bluetooth::audio::sco::cleanup(); } void Free() { bluetooth::audio::sco::cleanup(); } Loading system/stack/btm/btm_sco_hfp_hal.cc 0 → 100644 +90 −0 Original line number Original line Diff line number Diff line /* * Copyright 2022 The Android Open Source Project * * 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. */ #include "btm_sco_hfp_hal.h" #include <vector> #include "device/include/esco_parameters.h" namespace hfp_hal_interface { namespace { bool offload_supported = true; bool offload_enabled = true; std::vector<bt_codec> cached_codecs; } // namespace // Android implementation only has consts. Initialize CVSD and MSBC to PCM // offloaded defaults. void init() { bt_codec cvsd = { .codec = codec::CVSD, .data_path = ESCO_DATA_PATH_PCM, }; bt_codec msbc = { .codec = codec::MSBC, .data_path = ESCO_DATA_PATH_PCM, }; cached_codecs.clear(); cached_codecs.emplace_back(cvsd); cached_codecs.emplace_back(msbc); } // Android statically compiles WBS support. bool get_wbs_supported() { return !DISABLE_WBS; } // Checks the supported codecs bt_codecs get_codec_capabilities(uint64_t codecs) { bt_codecs codec_list = {.offload_capable = offload_supported}; for (auto c : cached_codecs) { if (c.codec & codecs) { codec_list.codecs.push_back(c); } } return codec_list; } // Check if hardware offload is supported bool get_offload_supported() { return offload_supported; } // Check if hardware offload is enabled bool get_offload_enabled() { return offload_supported && offload_enabled; } // Set offload enable/disable bool enable_offload(bool enable) { if (!offload_supported) { return false; } offload_enabled = enable; return true; } // Notify the codec datapath to lower layer for offload mode. bool set_codec_datapath(int codec) { return true; } // No packet size limits on Android since it will be offloaded. int get_packet_size(int codec) { return kDefaultPacketSize; } void notify_sco_connection_change(RawAddress device, bool is_connected, int codec) { // Do nothing since this is handled by Android's audio hidl. } } // namespace hfp_hal_interface system/stack/btm/btm_sco_hfp_hal.h 0 → 100644 +80 −0 Original line number Original line Diff line number Diff line /* * Copyright 2022 The Android Open Source Project * * 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. */ #pragma once #include <stdint.h> #include <vector> #include "bt_target.h" #include "raw_address.h" // Used by the Bluetooth stack to get WBS supported and codec, or notify SCO // connection change to lower layer (kernel) when SCO-over-HCI is used. So far // ChromeOS uses SCO-over-HCI; usually Android phone uses hardware SCO route so // it doesn't apply here. namespace hfp_hal_interface { enum codec : uint64_t { CVSD = 1 << 0, MSBC_TRANSPARENT = 1 << 1, MSBC = 1 << 2, }; struct bt_codec { codec codec; uint8_t data_path; std::vector<uint8_t> data; }; struct bt_codecs { bool offload_capable; std::vector<bt_codec> codecs; }; // Use default packet size for codec if this value is given. constexpr int kDefaultPacketSize = 0; // Initialize the SCO HFP HAL module void init(); // Check if wideband speech is supported on local device. bool get_wbs_supported(); // Checks the details of the codecs (specified as a bitmask of enum codec). bt_codecs get_codec_capabilities(uint64_t codecs); // Check if hardware offload is supported. bool get_offload_supported(); // Check if hardware offload is enabled. bool get_offload_enabled(); // Set offload enable/disable. bool enable_offload(bool enable); // Notify the codec datapath to lower layer for offload mode. // TODO - This api may become unnecessary depending on how this is integrated. bool set_codec_datapath(int codec); // Get the maximum supported packet size from the lower layer. int get_packet_size(int codec); // Notify the lower layer about SCO connection change. void notify_sco_connection_change(RawAddress device, bool is_connected, int codec); } // namespace hfp_hal_interface Loading
system/stack/Android.bp +2 −0 Original line number Original line Diff line number Diff line Loading @@ -136,6 +136,7 @@ cc_library_static { "acl/btm_pm.cc", "acl/btm_pm.cc", "btm/btm_sco.cc", "btm/btm_sco.cc", "btm/btm_sco_hci.cc", "btm/btm_sco_hci.cc", "btm/btm_sco_hfp_hal.cc", "btm/btm_iso.cc", "btm/btm_iso.cc", "btm/btm_sec.cc", "btm/btm_sec.cc", "btm/btm_scn.cc", "btm/btm_scn.cc", Loading Loading @@ -819,6 +820,7 @@ cc_test { "btm/btm_main.cc", "btm/btm_main.cc", "btm/btm_sco.cc", "btm/btm_sco.cc", "btm/btm_sco_hci.cc", "btm/btm_sco_hci.cc", "btm/btm_sco_hfp_hal.cc", "btm/btm_scn.cc", "btm/btm_scn.cc", "btm/btm_sec.cc", "btm/btm_sec.cc", "metrics/stack_metrics_logging.cc", "metrics/stack_metrics_logging.cc", Loading
system/stack/BUILD.gn +1 −0 Original line number Original line Diff line number Diff line Loading @@ -122,6 +122,7 @@ source_set("stack") { "btm/btm_scn.cc", "btm/btm_scn.cc", "btm/btm_sco.cc", "btm/btm_sco.cc", "btm/btm_sco_hci.cc", "btm/btm_sco_hci.cc", "btm/btm_sco_hfp_hal_linux.cc", "btm/btm_sec.cc", "btm/btm_sec.cc", "btu/btu_hcif.cc", "btu/btu_hcif.cc", "btu/btu_task.cc", "btu/btu_task.cc", Loading
system/stack/btm/btm_sco.h +2 −0 Original line number Original line Diff line number Diff line Loading @@ -19,6 +19,7 @@ #include <cstdint> #include <cstdint> #include <string> #include <string> #include "btm_sco_hfp_hal.h" #include "device/include/esco_parameters.h" #include "device/include/esco_parameters.h" #include "stack/include/btm_api_types.h" #include "stack/include/btm_api_types.h" Loading Loading @@ -137,6 +138,7 @@ typedef struct { void Init() { void Init() { def_esco_parms = esco_parameters_for_codec(ESCO_CODEC_CVSD_S3); def_esco_parms = esco_parameters_for_codec(ESCO_CODEC_CVSD_S3); hfp_hal_interface::init(); } } void Free() { bluetooth::audio::sco::cleanup(); } void Free() { bluetooth::audio::sco::cleanup(); } Loading
system/stack/btm/btm_sco_hfp_hal.cc 0 → 100644 +90 −0 Original line number Original line Diff line number Diff line /* * Copyright 2022 The Android Open Source Project * * 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. */ #include "btm_sco_hfp_hal.h" #include <vector> #include "device/include/esco_parameters.h" namespace hfp_hal_interface { namespace { bool offload_supported = true; bool offload_enabled = true; std::vector<bt_codec> cached_codecs; } // namespace // Android implementation only has consts. Initialize CVSD and MSBC to PCM // offloaded defaults. void init() { bt_codec cvsd = { .codec = codec::CVSD, .data_path = ESCO_DATA_PATH_PCM, }; bt_codec msbc = { .codec = codec::MSBC, .data_path = ESCO_DATA_PATH_PCM, }; cached_codecs.clear(); cached_codecs.emplace_back(cvsd); cached_codecs.emplace_back(msbc); } // Android statically compiles WBS support. bool get_wbs_supported() { return !DISABLE_WBS; } // Checks the supported codecs bt_codecs get_codec_capabilities(uint64_t codecs) { bt_codecs codec_list = {.offload_capable = offload_supported}; for (auto c : cached_codecs) { if (c.codec & codecs) { codec_list.codecs.push_back(c); } } return codec_list; } // Check if hardware offload is supported bool get_offload_supported() { return offload_supported; } // Check if hardware offload is enabled bool get_offload_enabled() { return offload_supported && offload_enabled; } // Set offload enable/disable bool enable_offload(bool enable) { if (!offload_supported) { return false; } offload_enabled = enable; return true; } // Notify the codec datapath to lower layer for offload mode. bool set_codec_datapath(int codec) { return true; } // No packet size limits on Android since it will be offloaded. int get_packet_size(int codec) { return kDefaultPacketSize; } void notify_sco_connection_change(RawAddress device, bool is_connected, int codec) { // Do nothing since this is handled by Android's audio hidl. } } // namespace hfp_hal_interface
system/stack/btm/btm_sco_hfp_hal.h 0 → 100644 +80 −0 Original line number Original line Diff line number Diff line /* * Copyright 2022 The Android Open Source Project * * 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. */ #pragma once #include <stdint.h> #include <vector> #include "bt_target.h" #include "raw_address.h" // Used by the Bluetooth stack to get WBS supported and codec, or notify SCO // connection change to lower layer (kernel) when SCO-over-HCI is used. So far // ChromeOS uses SCO-over-HCI; usually Android phone uses hardware SCO route so // it doesn't apply here. namespace hfp_hal_interface { enum codec : uint64_t { CVSD = 1 << 0, MSBC_TRANSPARENT = 1 << 1, MSBC = 1 << 2, }; struct bt_codec { codec codec; uint8_t data_path; std::vector<uint8_t> data; }; struct bt_codecs { bool offload_capable; std::vector<bt_codec> codecs; }; // Use default packet size for codec if this value is given. constexpr int kDefaultPacketSize = 0; // Initialize the SCO HFP HAL module void init(); // Check if wideband speech is supported on local device. bool get_wbs_supported(); // Checks the details of the codecs (specified as a bitmask of enum codec). bt_codecs get_codec_capabilities(uint64_t codecs); // Check if hardware offload is supported. bool get_offload_supported(); // Check if hardware offload is enabled. bool get_offload_enabled(); // Set offload enable/disable. bool enable_offload(bool enable); // Notify the codec datapath to lower layer for offload mode. // TODO - This api may become unnecessary depending on how this is integrated. bool set_codec_datapath(int codec); // Get the maximum supported packet size from the lower layer. int get_packet_size(int codec); // Notify the lower layer about SCO connection change. void notify_sco_connection_change(RawAddress device, bool is_connected, int codec); } // namespace hfp_hal_interface
