Bluetooth: hci_uart: Add support for Amlogic HCI UART

Browse source

Add a new HCI protocol HCI_UART_AML for the Amlogic Bluetooth
controller. It works on the standard H4 protocol via a 4-wire UART
interface, with baud rates up to 4 Mbps.

The controller supports two types of commands: the TCI commands and the
vendor command. The former is for initial setup including setting baud
rates, downloading fw, starting chip and etc, while the latter is for
dumping firmware versions and setting public address after firmware
updates and normal startup.

It was verified on board of T602 (S905X4 + W265S2).

dmesg:
..
[    5.313450] Bluetooth: HCI UART protocol AML registered
[    6.506052] Bluetooth: hci0: fw_version: date = 42.28, number = 0xb2fd
...

Co-developed-by: Ye He <ye.he@amlogic.com>
Signed-off-by: Ye He <ye.he@amlogic.com>
Signed-off-by: Yang Li <yang.li@amlogic.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>

...

This commit is contained in:

Yang Li 2024-08-09 13:42:25 +08:00 • committed by Luiz Augusto von Dentz

parent e5e465a1ae

commit 37bac77e46

5 changed files with 781 additions and 3 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

12

drivers/bluetooth/Kconfig

View file

1

drivers/bluetooth/Makefile

View file

755

drivers/bluetooth/hci_aml.c

View file

8

drivers/bluetooth/hci_ldisc.c

View file

8

drivers/bluetooth/hci_uart.h

View file