lwn.git/drivers/bluetooth/hci_bcm.c, branch alabaster

Bluetooth: hci_bcm: Increase host baudrate for CYW55572 in autobaud mode

2022-07-22T00:12:22+00:00

Add device specific data for max baudrate in autobaud mode. This allows the host to use a baudrate higher than "init speed" when loading FW in autobaud mode. The device specific max baudrate in autobaud mode for CYW55572 is set to 921600 bps. Devices without device specific max baudrate in autobaud mode will use init speed as before. If no device specific init speed has been specified, it will default to the bcm_proto default 115200 bps. The increased baud rate improves FW load time. The exact load time will depend on the specific system and FW being used. As a rough indication, the FW load time dropped from ~9s @ 115.2kbps to ~1.7s @ 921.6kbps in one test. Signed-off-by: Hakan Jansson Reviewed-by: Linus Walleij Signed-off-by: Luiz Augusto von Dentz

Bluetooth: hci_bcm: Prevent early baudrate setting in autobaud mode

2022-07-22T00:12:09+00:00

Always prevent trying to set device baudrate before calling setup() when using autobaud mode. This was previously happening for devices which had device specific data with member no_early_set_baudrate set to 0. Signed-off-by: Hakan Jansson Reviewed-by: Linus Walleij Signed-off-by: Luiz Augusto von Dentz

Bluetooth: hci_bcm: Add DT compatible for CYW55572

2022-07-22T00:11:56+00:00

CYW55572 is a Wi-Fi + Bluetooth combo device from Infineon. Signed-off-by: Hakan Jansson Reviewed-by: Linus Walleij Signed-off-by: Luiz Augusto von Dentz

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: hci_bcm: Add the Asus TF103C to the bcm_broken_irq_dmi_table

2022-03-18T16:12:08+00:00

The DSDT for the Asus TF103C specifies a IOAPIC IRQ for the HCI -> host IRQ but this is not correct. Unlike the previous entries in the table, this time the correct GPIO to use instead is known; and the TF103C is battery powered making runtime-pm support more important. Extend the bcm_broken_irq_dmi_table mechanism to allow specifying the right GPIO instead of just always disabling runtime-pm and add an entry to it for the Asus TF103C. Signed-off-by: Hans de Goede Signed-off-by: Marcel Holtmann

Bluetooth: hci_bcm: add BCM43430A0 & BCM43430A1

2022-03-04T15:57:13+00:00

Add the compatible for BCM43430A0 bluetooth used in lg-lenok and BCM43430A1 used in asus-sparrow. Signed-off-by: Luca Weiss Signed-off-by: Marcel Holtmann

Bluetooth: hci_bcm: Check for error irq

2022-01-06T13:52:11+00:00

For the possible failure of the platform_get_irq(), the returned irq could be error number and will finally cause the failure of the request_irq(). Consider that platform_get_irq() can now in certain cases return -EPROBE_DEFER, and the consequences of letting request_irq() effectively convert that into -EINVAL, even at probe time rather than later on. So it might be better to check just now. Fixes: 0395ffc1ee05 ("Bluetooth: hci_bcm: Add PM for BCM devices") Signed-off-by: Jiasheng Jiang Signed-off-by: Marcel Holtmann

Bluetooth: hci_bcm: Remove duplicated entry in OF table

2021-10-25T13:07:13+00:00

The entry "brcm,bcm4330-bt" was listed twice in the table. Signed-off-by: Paul Cercueil Signed-off-by: Marcel Holtmann

Bluetooth: hci_bcm: Fix kernel doc comments

2021-08-04T14:37:12+00:00

Kernel doc validator complains about few missed parameter descriptions. Fill the gap by describing them. Signed-off-by: Andy Shevchenko Signed-off-by: Marcel Holtmann