linux-stable.git/drivers/bluetooth/btintel.c, branch v6.8

Bluetooth: btintel: Print firmware SHA1

2023-12-22T17:55:56+00:00

Intel Read Version event contains a TLV(0x32) having firmware sha1 in
operational image.

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

Bluetooth: HCI: Introduce HCI_QUIRK_BROKEN_LE_CODED

2023-08-24T19:23:46+00:00

This introduces HCI_QUIRK_BROKEN_LE_CODED which is used to indicate
that LE Coded PHY shall not be used, it is then set for some Intel
models that claim to support it but when used causes many problems.

Cc: stable@vger.kernel.org # 6.4.y+
Link: https://github.com/bluez/bluez/issues/577
Link: https://github.com/bluez/bluez/issues/582
Link: https://lore.kernel.org/linux-bluetooth/CABBYNZKco-v7wkjHHexxQbgwwSz-S=GZ=dZKbRE1qxT1h4fFbQ@mail.gmail.com/T/#
Fixes: 288c90224eec ("Bluetooth: Enable all supported LE PHY by default")
Signed-off-by: Luiz Augusto von Dentz

Bluetooth: btintel: Send new command for PPAG

2023-08-24T19:23:26+00:00

Added support for the new command opcode FE0B
(HCI Intel PPAG Enable).

btmon log:
< HCI Command: Intel PPAG Enable (0x3f|0x020b) plen 4
        Enable: 0x00000002
> HCI Event: Command Complete (0x0e) plen 4
      Intel PPAG Enable (0x3f|0x020b) ncmd 1
        Status: Success (0x00)

Signed-off-by: Seema Sreemantha 
Signed-off-by: Lokendra Singh 
Signed-off-by: Luiz Augusto von Dentz

Bluetooth: btusb: Move btusb_recv_event_intel to btintel

2023-08-11T18:51:53+00:00

btusb_recv_event_intel is specific to Intel controllers therefore it
shall be placed inside btintel.c so btusb don't have a mix of vendor
specific code with the generic parts.

Signed-off-by: Luiz Augusto von Dentz

Bluetooth: btintel: Add support for Gale Peak

2023-08-11T18:40:44+00:00

Add hardware variant(0x1c) for Gale Peak core (CNVi).

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

Bluetooth: btintel: Add support to reset bluetooth via ACPI DSM

2023-08-11T18:39:19+00:00

New Intel platforms supports reset of Bluetooth device  via ACPI DSM
methods. The legacy reset mechanism via GPIO will be deprecated in
future. This patch checks the platform support for reset methods and if
supported uses the same instead of legacy GPIO toggling method.

ACPI firmware supports two types of reset method based on NIC card.
(Discrete or Integrated).

1. VSEC Type - Vendor Specific Extended Capability. Here  BT_EN and
   BT_IF_SELECT lines are driven by a register in PCH cluster. This
   interface is supported on discrete BT solution.

2. WDISABLE2 - In this soluton, W_DISABLE2 pin in M.2 is connected to
   physical GPIO from PCH. The DSM interface shall toggle this to recover
   from  error.

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

Bluetooth: btintel: Add Intel devcoredump support

2023-04-24T04:59:02+00:00

Intercept debug exception events from the controller and put them into
a devcoredump using hci devcoredump APIs. The debug exception contains
data in a TLV format and it will be parsed in userspace.

Signed-off-by: Abhishek Pandit-Subedi 
Signed-off-by: Manish Mandlik 
Reviewed-by: Abhishek Pandit-Subedi 
Reviewed-by: Chethan Tumkur Narayan 
Signed-off-by: Luiz Augusto von Dentz

Bluetooth: btintel: Add LE States quirk support

2023-04-24T04:57:44+00:00

Basically all Intel controllers support both Central/Peripheral
LE states.

This patch enables the LE States quirk by default on all
Solar and Magnertor Intel controllers.

Signed-off-by: Chethan T N 
Signed-off-by: Luiz Augusto von Dentz

Bluetooth: btinel: Check ACPI handle for NULL before accessing

2023-03-23T20:09:26+00:00

Older platforms and Virtual platforms which doesn't have support for
bluetooth device in ACPI firmware will not have valid ACPI handle.
Check for validity of handle before accessing.

dmesg log from simics environment (virtual platform):

BUG: unable to handle kernel NULL pointer dereference at
0000000000000018
IP: acpi_ns_walk_namespace+0x5c/0x278
PGD 0 P4D 0
Oops: 0000 [#1] SMP PTI
Modules linked in: bnep intel_powerclamp coretemp kvm_intel
kvm irqbypass intel_cstate input_leds joydev serio_raw mac_hid
btusb(OE) btintel(OE) bluetooth(OE) lpc_ich compat(OE) ecdh_generic
i7core_edac i5500_temp shpchp binfmt_misc sch_fq_codel parport_pc ppdev
lp parport ip_tables x_tables autofs4 hid_generic usbhid hid e1000e
psmouse ahci pata_acpi libahci ptp pps_core floppy
CPU: 0 PID: 35 Comm: kworker/u3:0 Tainted: G           OE
4.15.0-140-generic #144-Ubuntu
Hardware name: Simics Simics, BIOS Simics 01/01/2011
Workqueue: hci0 hci_power_on [bluetooth]
RIP: 0010:acpi_ns_walk_namespace+0x5c/0x278
RSP: 0000:ffffaa9c0049bba8 EFLAGS: 00010246
RAX: 0000000000000001 RBX: 0000000000001001 RCX: 0000000000000010
RDX: ffffffff92ea7e27 RSI: ffffffff92ea7e10 RDI: 00000000000000c8
RBP: ffffaa9c0049bbf8 R08: 0000000000000000 R09: ffffffffc05b39d0
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
R13: 0000000000000000 R14: ffffffffc05b39d0 R15: ffffaa9c0049bc70
FS:  0000000000000000(0000) GS:ffff8be73fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000018 CR3: 0000000075f0e000 CR4: 00000000000006f0

Fixes: 294d749b5df5 ("Bluetooth: btintel: Iterate only bluetooth device ACPI entries")
Signed-off-by: Kiran K 
Signed-off-by: Luiz Augusto von Dentz

Bluetooth: btintel: Iterate only bluetooth device ACPI entries

2023-03-22T23:05:55+00:00

Current flow interates over entire ACPI table entries looking for
Bluetooth Per Platform Antenna Gain(PPAG) entry. This patch iterates
over ACPI entries relvant to Bluetooth device only.

Fixes: c585a92b2f9c ("Bluetooth: btintel: Set Per Platform Antenna Gain(PPAG)")
Signed-off-by: Kiran K 
Signed-off-by: Luiz Augusto von Dentz