linux.git/drivers/bluetooth/btbcm.c, branch v6.0

Bluetooth: hci_bcm: Add BCM4349B1 variant

2022-07-22T00:06:36+00:00

The BCM4349B1, aka CYW/BCM89359, is a WiFi+BT chip and its Bluetooth
portion can be controlled over serial.

Two subversions are added for the chip, because ROM firmware reports
002.002.013 (at least for the chips I have here), while depending on
patchram firmware revision, either 002.002.013 or 002.002.014 is
reported.

Signed-off-by: Ahmad Fatoum 
Reviewed-by: Linus Walleij 
Signed-off-by: Marcel Holtmann

Bluetooth: hci_bcm: Add support for FW loading in autobaud mode

2022-07-22T00:04:38+00:00

Use the presence of a DT property, "brcm,requires-autobaud-mode", to enable
startup in autobaud mode. If the property is present, the device is started
in autobaud mode by asserting RTS (BT_UART_CTS_N) prior to powering on the
device.

Also prevent the use of unsupported commands for devices started in
autobaud mode. Only a limited subset of HCI commands are supported in
autobaud mode.

Some devices (e.g. CYW5557x) require autobaud mode to enable FW loading.
Autobaud mode can also be required on some boards where the controller
device is using a non-standard baud rate in normal mode when first powered
on.

Signed-off-by: Hakan Jansson 
Signed-off-by: Marcel Holtmann

Bluetooth: btbcm: Add entry for BCM4373A0 UART Bluetooth

2022-05-13T11:06:31+00:00

This patch adds the device ID for the BCM4373A0 module, found e.g. in
the Infineon (Cypress) CYW4373E chip. The required firmware file is
named 'BCM4373A0.hcd'.

Signed-off-by: Tim Harvey 
Signed-off-by: Marcel Holtmann

Bluetooth: btbcm: Support per-board firmware variants

2022-05-13T11:05:48+00:00

There are provedly different firmware variants for the different
phones using some of these chips. These were extracted from a few
Samsung phones:

37446 BCM4334B0.samsung,codina-tmo.hcd
37366 BCM4334B0.samsung,golden.hcd
37403 BCM4334B0.samsung,kyle.hcd
37366 BCM4334B0.samsung,skomer.hcd

This patch supports the above naming schedule with inserting
[.board_name] between the firmware name and ".hcd". This scheme
is the same as used by the companion BRCM wireless chips
as can be seen in
drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
or just by looking at the firmwares in linux-firmware/brcm.

Currently we only support board variants using the device
tree compatible string as board type, but other schemes are
possible.

This makes it possible to successfully load a few unique
firmware variants for some Samsung phones.

Cc: phone-devel@vger.kernel.org
Cc: Markuss Broks 
Cc: Stephan Gerhold 
Signed-off-by: Linus Walleij 
Signed-off-by: Marcel Holtmann

Bluetooth: btbcm: disable read tx power for MacBook Air 8,1 and 8,2

2022-01-06T13:55:33+00:00

The MacBook Air 8,1 and 8,2 also need querying of LE Tx power
to be disabled for Bluetooth to work.

Signed-off-by: Aditya Garg 
Signed-off-by: Marcel Holtmann 
Cc: stable@vger.kernel.org

Bluetooth: btbcm: disable read tx power for some Macs with the T2 Security chip

2021-12-07T16:05:51+00:00

Some Macs with the T2 security chip had Bluetooth not working.
To fix it we add DMI based quirks to disable querying of LE Tx power.

Signed-off-by: Aditya Garg 
Reported-by: Orlando Chamberlain 
Tested-by: Orlando Chamberlain 
Link:
https://lore.kernel.org/r/4970a940-211b-25d6-edab-21a815313954@protonmail.com
Fixes: 7c395ea521e6 ("Bluetooth: Query LE tx power on startup")
Cc: stable@vger.kernel.org
Signed-off-by: Marcel Holtmann

Bluetooth: btbcm: add patch ram for bluetooth

2021-08-16T15:57:40+00:00

Bluetooth on the BCM43752 needs a patchram file to function correctly.

Signed-off-by: Angus Ainslie 
Signed-off-by: Marcel Holtmann

Bluetooth: btbcm: Add entry for BCM43430B0 UART Bluetooth

2021-06-26T05:12:28+00:00

This patch adds the device ID for the BCM43430B0 module, found e.g. in
certain revisions of AMPAK AP6212 chip. The required firmware file is
named 'BCM43430B0.hcd'.

Signed-off-by: Mikhail Rudenko 
Signed-off-by: Marcel Holtmann

Bluetooth: btbcm: Added 003.006.007, changed 001.003.015

2020-05-28T08:28:12+00:00

Added new Broadcom device BCM4350C5, changed BCM4354A2 to BCM4356A2.

Based on Broadcom Windows drivers 001.003.015 should be BCM4356A2. I
have user report that firmware name is misplaced
(https://github.com/winterheart/broadcom-bt-firmware/issues/3).

Signed-off-by: Azamat H. Hackimov 
Signed-off-by: Marcel Holtmann

Bluetooth: btbcm: Add 2 missing models to subver tables

2020-04-22T17:43:59+00:00

Currently the bcm_uart_subver_ and bcm_usb_subver_table-s lack entries
for the BCM4324B5 and BCM20703A1 chipsets. This makes the code use just
"BCM" as prefix for the filename to pass to request-firmware, making it
harder for users to figure out which firmware they need. This especially
is problematic with the UART attached BCM4324B5 where this leads to the
filename being just "BCM.hcd".

Add the 2 missing devices to subver tables. This has been tested on:

1. A Dell XPS15 9550 where this makes btbcm.c try to load
"BCM20703A1-0a5c-6410.hcd" before it tries to load "BCM-0a5c-6410.hcd".

2. A Thinkpad 8 where this makes btbcm.c try to load
"BCM4324B5.hcd" before it tries to load "BCM.hcd"

Signed-off-by: Hans de Goede 
Signed-off-by: Marcel Holtmann