147 lines
7.2 KiB
C
147 lines
7.2 KiB
C
/******************************************************************************
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*
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* Copyright (C) 2015 Google, Inc.
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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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*
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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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*
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******************************************************************************/
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#pragma once
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#include <stdbool.h>
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#include "btcore/include/bdaddr.h"
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static const char INTEROP_MODULE[] = "interop_module";
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// NOTE:
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// Only add values at the end of this enum and do NOT delete values
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// as they may be used in dynamic device configuration.
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typedef enum {
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// Disable secure connections
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// This is for pre BT 4.1/2 devices that do not handle secure mode
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// very well.
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INTEROP_DISABLE_LE_SECURE_CONNECTIONS = 0,
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// Some devices have proven problematic during the pairing process, often
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// requiring multiple retries to complete pairing. To avoid degrading the user
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// experience for those devices, automatically re-try pairing if page
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// timeouts are received during pairing.
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INTEROP_AUTO_RETRY_PAIRING,
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// Devices requiring this workaround do not handle Bluetooth Absolute Volume
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// control correctly, leading to undesirable (potentially harmful) volume levels
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// or general lack of controlability.
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INTEROP_DISABLE_ABSOLUTE_VOLUME,
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// Disable automatic pairing with headsets/car-kits
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// Some car kits do not react kindly to a failed pairing attempt and
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// do not allow immediate re-pairing. Blacklist these so that the initial
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// pairing attempt makes it to the user instead.
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INTEROP_DISABLE_AUTO_PAIRING,
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// Use a fixed pin for specific keyboards
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// Keyboards should use a variable pin at all times. However, some keyboards
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// require a fixed pin of all 0000. This workaround enables auto pairing for
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// those keyboards.
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INTEROP_KEYBOARD_REQUIRES_FIXED_PIN,
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// Some headsets have audio jitter issues because of increased re-transmissions as the
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// 3 Mbps packets have a lower link margin, and are more prone to interference. We can
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// disable 3DH packets (use only 2DH packets) for the ACL link to improve sensitivity
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// when streaming A2DP audio to the headset. Air sniffer logs show reduced
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// re-transmissions after switching to 2DH packets.
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//
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// Disable 3Mbps packets and use only 2Mbps packets for ACL links when streaming audio.
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INTEROP_2MBPS_LINK_ONLY,
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// Some HID devices have proven problematic behaviour if SDP is initiated again
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// while HID connection is in progress or if more than 1 SDP connection is created
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// with those HID devices rsulting in issues of connection failure with such devices.
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// To avoid degrading the user experience with those devices, SDP is not attempted
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// as part of pairing process.
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INTEROP_DISABLE_SDP_AFTER_PAIRING,
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// Some HID pointing devices have proven problematic behaviour if pairing is initiated with
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// them, resulting in no response for authentication request and ultimately resulting
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// in connection failure.
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// To avoid degrading the user experience with those devices, authentication request
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// is not requested explictly.
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INTEROP_DISABLE_AUTH_FOR_HID_POINTING,
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// HID Keyboards that claim support for multitouch functionality have issue with
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// normal functioning of keyboard because of issues in USB HID kernel driver.
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// To avoid degrading the user experience with those devices, digitizer record
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// is removed from the report descriptor.
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INTEROP_REMOVE_HID_DIG_DESCRIPTOR,
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// Some HID devices have problematic behaviour where when hid link is in Sniff
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// and DUT is in Slave role for SCO link ( not eSCO) any solution cannot maintain
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// the link as SCO scheduling over a short period will overlap with Sniff link due to
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// slave drift.
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// To avoid degrading the user experience with those devices, sniff is disabled from
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// link policy when sco is active, and enabled when sco is disabled.
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INTEROP_DISABLE_SNIFF_DURING_SCO,
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//Few carkits take long time to start sending AT commands
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//Increase AG_CONN TIMEOUT so that AG connection go through
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INTEROP_INCREASE_AG_CONN_TIMEOUT,
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// Few remote devices do not understand AVRCP version greater than 1.3. For these
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// devices, we would like to blacklist them and advertise AVRCP version as 1.3
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INTEROP_ADV_AVRCP_VER_1_3,
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} interop_feature_t;
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// Check if a given |addr| matches a known interoperability workaround as identified
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// by the |interop_feature_t| enum. This API is used for simple address based lookups
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// where more information is not available. No look-ups or random address resolution
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// are performed on |addr|.
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bool interop_match_addr(const interop_feature_t feature, const bt_bdaddr_t *addr);
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// Check if a given remote device |name| matches a known interoperability workaround.
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// Name comparisons are case sensitive and do not allow for partial matches. As in, if
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// |name| is "TEST" and a workaround exists for "TESTING", then this function will
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// return false. But, if |name| is "TESTING" and a workaround exists for "TEST", this
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// function will return true.
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// |name| cannot be null and must be null terminated.
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bool interop_match_name(const interop_feature_t feature, const char *name);
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// Check if a given remote device |name| matches a known interoperability workaround.
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// Name comparisons are case sensitive and do not allow for partial matches. As in, if
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// |name| is "TEST" and a workaround exists for "TESTING", then this function will
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// return false. But, if |name| is "TESTING" and a workaround exists for "TEST", this
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// function will return true.
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// |name| cannot be null and must be null terminated.
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bool interop_match_name(const interop_feature_t feature, const char *name);
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// Check if a given |manufacturer| matches a known interoperability workaround as identified
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// by the |interop_feature_t| enum. This API is used for manufacturer based lookups
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// where more information is not available.
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bool interop_match_manufacturer(const interop_feature_t feature, uint16_t manufacturer);
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// Check if a given |vendor_id, product_id, name| matches a known interoperability workaround
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// as identified by the |interop_feature_t| enum. This API is used for simple name based lookups
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// where more information is not available.
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bool interop_match_vendor_product_ids(const interop_feature_t feature,
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uint16_t vendor_id, uint16_t product_id);
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// Add a dynamic interop database entry for a device matching the first |length| bytes
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// of |addr|, implementing the workaround identified by |feature|. |addr| may not be
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// null and |length| must be greater than 0 and less than sizeof(bt_bdaddr_t).
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// As |interop_feature_t| is not exposed in the public API, feature must be a valid
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// integer representing an optoin in the enum.
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void interop_database_add(const uint16_t feature, const bt_bdaddr_t *addr, size_t length);
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// Clear the dynamic portion of the interoperability workaround database.
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void interop_database_clear(void);
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