linux-stable.git/drivers/bluetooth/btintel.c, branch linux-6.16.y

Bluetooth: btintel: Define a macro for Intel Reset vendor command

2025-08-15T14:38:52+00:00

[ Upstream commit 15843c7fdba65568704245fd3ea2aa3aa2d50825 ]

Use macro for Intel Reset command (0xfc01) instead of hard coded value.

Signed-off-by: Kiran K 
Signed-off-by: Luiz Augusto von Dentz 
Stable-dep-of: 69b3d3acf3db ("Bluetooth: btintel_pcie: Make driver wait for alive interrupt")
Signed-off-by: Sasha Levin

Bluetooth: hci_dev: replace 'quirks' integer by 'quirk_flags' bitmap

2025-07-16T19:37:53+00:00

The 'quirks' member already ran out of bits on some platforms some time
ago. Replace the integer member by a bitmap in order to have enough bits
in future. Replace raw bit operations by accessor macros.

Fixes: ff26b2dd6568 ("Bluetooth: Add quirk for broken READ_VOICE_SETTING")
Fixes: 127881334eaa ("Bluetooth: Add quirk for broken READ_PAGE_SCAN_TYPE")
Suggested-by: Pauli Virtanen 
Tested-by: Ivan Pravdin 
Signed-off-by: Kiran K 
Signed-off-by: Christian Eggers 
Signed-off-by: Luiz Augusto von Dentz

Bluetooth: btintel: Check if controller is ISO capable on btintel_classify_pkt_type

2025-07-16T19:33:13+00:00

Due to what seem to be a bug with variant version returned by some
firmwares the code may set hdev->classify_pkt_type with
btintel_classify_pkt_type when in fact the controller doesn't even
support ISO channels feature but may use the handle range expected from
a controllers that does causing the packets to be reclassified as ISO
causing several bugs.

To fix the above btintel_classify_pkt_type will attempt to check if the
controller really supports ISO channels and in case it doesn't don't
reclassify even if the handle range is considered to be ISO, this is
considered safer than trying to fix the specific controller/firmware
version as that could change over time and causing similar problems in
the future.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=219553
Link: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2100565
Link: https://github.com/StarLabsLtd/firmware/issues/180
Fixes: f25b7fd36cc3 ("Bluetooth: Add vendor-specific packet classification for ISO data")
Cc: stable@vger.kernel.org
Signed-off-by: Luiz Augusto von Dentz 
Tested-by: Sean Rhodes

Bluetooth: btintel: Check dsbr size from EFI variable

2025-05-22T17:06:28+00:00

Since the size of struct btintel_dsbr is already known, we can just
start there instead of querying the EFI variable size. If the final
result doesn't match what we expect also fail. This fixes a stack buffer
overflow when the EFI variable is larger than struct btintel_dsbr.

Reported-by: zepta 
Closes: https://lore.kernel.org/all/CAPBS6KoaWV9=dtjTESZiU6KK__OZX0KpDk-=JEH8jCHFLUYv3Q@mail.gmail.com
Fixes: eb9e749c0182 ("Bluetooth: btintel: Allow configuring drive strength of BRI")
Signed-off-by: Kees Cook 
Signed-off-by: Luiz Augusto von Dentz

Bluetooth: btintel_pcie: Do not generate coredump for diagnostic events

2025-05-21T14:27:05+00:00

All Intel diagnostic events are part of HCI traces and there is no need
to generate coredump for the same.

Signed-off-by: Kiran K 
Signed-off-by: Luiz Augusto von Dentz

Bluetooth: btintel: Add support to configure TX power

2025-03-25T16:51:42+00:00

BRDS - Bluetooth Regulatory Domain Specific absorption rate

Bluetooth has regulatory limitations which prohibit or allow usage of certain
bands or channels as well as limiting Tx power. The Tx power values can be
configured in ACPI table. This patch reads from ACPI entry configures the
controller accordingly.

Signed-off-by: Kiran K 
Signed-off-by: Vijay Satija 
Signed-off-by: Luiz Augusto von Dentz

Bluetooth: btintel: Add DSBR support for ScP

2025-03-25T16:31:41+00:00

Add DSBR support for Scorpious Peak cores.

Refer commit eb9e749c0182 ("Bluetooth: btintel: Allow configuring drive
strength of BRI") for details about DSBR.

Signed-off-by: Kiran K 
Signed-off-by: Luiz Augusto von Dentz

Bluetooth: btintel: Add support for Intel Scorpius Peak

2025-03-25T16:29:51+00:00

Add support for Scorpious Peak core.

Signed-off-by: Kiran K 
Signed-off-by: Luiz Augusto von Dentz

Bluetooth: Use str_enable_disable-like helpers

2025-01-15T15:36:11+00:00

Replace ternary (condition ? "enable" : "disable") syntax with helpers
from string_choices.h because:
1. Simple function call with one argument is easier to read.  Ternary
   operator has three arguments and with wrapping might lead to quite
   long code.
2. Is slightly shorter thus also easier to read.
3. It brings uniformity in the text - same string.
4. Allows deduping by the linker, which results in a smaller binary
   file.

Signed-off-by: Krzysztof Kozlowski 
Signed-off-by: Luiz Augusto von Dentz

Bluetooth: btintel: Direct exception event to bluetooth stack

2024-11-14T20:40:55+00:00

Have exception event part of HCI traces which helps for debug.

snoop traces:
> HCI Event: Vendor (0xff) plen 79
        Vendor Prefix (0x8780)
      Intel Extended Telemetry (0x03)
        Unknown extended telemetry event type (0xde)
        01 01 de
        Unknown extended subevent 0x07
        01 01 de 07 01 de 06 1c ef be ad de ef be ad de
        ef be ad de ef be ad de ef be ad de ef be ad de
        ef be ad de 05 14 ef be ad de ef be ad de ef be
        ad de ef be ad de ef be ad de 43 10 ef be ad de
        ef be ad de ef be ad de ef be ad de

Fixes: af395330abed ("Bluetooth: btintel: Add Intel devcoredump support")
Signed-off-by: Kiran K 
Signed-off-by: Luiz Augusto von Dentz