diff options
| author | Android Build Coastguard Worker <android-build-coastguard-worker@google.com> | 2023-11-30 00:02:27 +0000 |
|---|---|---|
| committer | Android Build Coastguard Worker <android-build-coastguard-worker@google.com> | 2023-11-30 00:02:27 +0000 |
| commit | 44a3e113419e6e1808a65ea4ef43b691fca42d49 (patch) | |
| tree | 51501032d72840acd77737a70ab502e48cce8459 | |
| parent | ee7c0f6336cb8fda82ba51d0f4eb0274417816fd (diff) | |
| parent | 2cb909a6798cae62415cefcc0d80f95176f27f78 (diff) | |
| download | car-44a3e113419e6e1808a65ea4ef43b691fca42d49.tar.gz | |
Snap for 11157599 from 2cb909a6798cae62415cefcc0d80f95176f27f78 to 24Q1-release
Change-Id: I3c813a7017f6380af8dfcf9b7a4b0131db57bd2b
| -rw-r--r-- | emulator/usbpt/bluetooth/bluetooth.prop | 38 |
1 files changed, 31 insertions, 7 deletions
diff --git a/emulator/usbpt/bluetooth/bluetooth.prop b/emulator/usbpt/bluetooth/bluetooth.prop index fdd00c0..e84275d 100644 --- a/emulator/usbpt/bluetooth/bluetooth.prop +++ b/emulator/usbpt/bluetooth/bluetooth.prop @@ -1,11 +1,35 @@ # The default Bluetooth Class of Device -# Service Field: 0x26 -> 38 -# - Bit 17: Networking -# - Bit 18: Rendering -# - Bit 21: Audio -# Major Class: 0x04 -> 4 (Audio / Video) -# Minor Class: 0x08 -> 8 (Car Audio) -bluetooth.device.class_of_device=38,4,8 +# +# Bluetooth uses "format 1" for class of device, which consists of 4 fields: +# * Major Service Class +# * Major Device Class +# * Minor Device Class +# * Format indicator (Fixed: 0b00) +# +# Class of device is represented by a 3-tuple. However, each value in the tuple does +# *NOT* correspond to a field. Instead, class of device is stored internally as 24 bits, +# and each value in the tuple corresponds to an octet. +# +# Format (24 Bits): +# Service Major Minor fmt +# (11 bits) (5 bits) (6 bits) 0b00 +# |23 13|12 8|7 2|1 0| +# |<------------------->|<------->|<--------->|<->| +# |0|0|1|0|0|1|1|0|0|0|0|0|0|1|0|0|0|0|1|0|0|0|0|0| +# |<------------->|<------------->|<------------->| +# |23 16|15 8|7 0| +# | octet[0] = 38 | octet[1] = 4 | octet[2] = 32 | +# +# Major Service Class: +# - Bit 21: Audio +# - Bit 18: Rendering +# - Bit 17: Networking +# Major Device Class: +# - Bit 10: Audio / Video +# Minor Device Class: +# - Bit 5: Car Audio +# Format Bits (Fixed): 0b00 -> "Format 1" +bluetooth.device.class_of_device=38,4,32 bluetooth.device.default_name=gCar Emulator # The Bluetooth profiles that cars expect to have enabled. All other profiles |