| Message ID | 20220907170935.11757-1-sven@svenpeter.dev |
|---|---|
| Headers | show |
| Series | Broadcom/Apple Bluetooth driver for Apple Silicon | expand |
On 08/09/2022 20.19, Krzysztof Kozlowski wrote: > On 07/09/2022 19:09, Sven Peter wrote: >> + >> + brcm,board-type: >> + $ref: /schemas/types.yaml#/definitions/string >> + description: Board type of the Bluetooth chip. This is used to decouple >> + the overall system board from the Bluetooth module and used to construct >> + firmware and calibration data filenames. >> + On Apple platforms, this should be the Apple module-instance codename >> + prefixed by "apple,", e.g. "apple,atlantisb". >> + pattern: '^apple,.*' >> + >> + brcm,taurus-cal-blob: >> + $ref: /schemas/types.yaml#/definitions/uint8-array >> + description: A per-device calibration blob for the Bluetooth radio. This >> + should be filled in by the bootloader from platform configuration >> + data, if necessary, and will be uploaded to the device. >> + This blob is used if the chip stepping of the Bluetooth module does not >> + support beamforming. > > Isn't it: > s/beamforming/beam forming/ > ? Nope, it's one word: https://en.wikipedia.org/wiki/Beamforming - Hector
On Thu, Sep 08, 2022 at 01:19:17PM +0200, Krzysztof Kozlowski wrote: > On 07/09/2022 19:09, Sven Peter wrote: > > These chips are combined Wi-Fi/Bluetooth radios which expose a > > PCI subfunction for the Bluetooth part. > > They are found in Apple machines such as the x86 models with the T2 > > chip or the arm64 models with the M1 or M2 chips. > > > > Signed-off-by: Sven Peter <sven@svenpeter.dev> > > --- > > changes from v1: > > - added apple,* pattern to brcm,board-type > > - s/PCI/PCIe/ > > - fixed 1st reg cell inside the example to not contain the bus number > > > > .../bindings/net/brcm,bcm4377-bluetooth.yaml | 78 +++++++++++++++++++ > > MAINTAINERS | 1 + > > 2 files changed, 79 insertions(+) > > create mode 100644 Documentation/devicetree/bindings/net/brcm,bcm4377-bluetooth.yaml > > > > diff --git a/Documentation/devicetree/bindings/net/brcm,bcm4377-bluetooth.yaml b/Documentation/devicetree/bindings/net/brcm,bcm4377-bluetooth.yaml > > new file mode 100644 > > index 000000000000..fb851f8e6bcb > > --- /dev/null > > +++ b/Documentation/devicetree/bindings/net/brcm,bcm4377-bluetooth.yaml > > @@ -0,0 +1,78 @@ > > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) > > +%YAML 1.2 > > +--- > > +$id: http://devicetree.org/schemas/net/brcm,bcm4377-bluetooth.yaml# > > +$schema: http://devicetree.org/meta-schemas/core.yaml# > > + > > +title: Broadcom BCM4377 family PCIe Bluetooth Chips > > + > > +allOf: > > + - $ref: bluetooth-controller.yaml# > > Put it before properties (so after description). > > > + > > +maintainers: > > + - Sven Peter <sven@svenpeter.dev> > > + > > +description: > > + This binding describes Broadcom BCM4377 family PCIe-attached bluetooth chips > > + usually found in Apple machines. The Wi-Fi part of the chip is described in > > + bindings/net/wireless/brcm,bcm4329-fmac.yaml. > > + > > +properties: > > + compatible: > > + enum: > > + - pci14e4,5fa0 # BCM4377 > > + - pci14e4,5f69 # BCM4378 > > + - pci14e4,5f71 # BCM4387 > > + > > + reg: > > + description: PCI device identifier. > > maxItems: X And drop the description. > > > + > > + brcm,board-type: > > + $ref: /schemas/types.yaml#/definitions/string > > + description: Board type of the Bluetooth chip. This is used to decouple > > + the overall system board from the Bluetooth module and used to construct > > + firmware and calibration data filenames. > > + On Apple platforms, this should be the Apple module-instance codename > > + prefixed by "apple,", e.g. "apple,atlantisb". > > + pattern: '^apple,.*' > > + > > + brcm,taurus-cal-blob: > > + $ref: /schemas/types.yaml#/definitions/uint8-array > > + description: A per-device calibration blob for the Bluetooth radio. This > > + should be filled in by the bootloader from platform configuration > > + data, if necessary, and will be uploaded to the device. > > + This blob is used if the chip stepping of the Bluetooth module does not > > + support beamforming. > > Isn't it: > s/beamforming/beam forming/ > ? > > > + > > + brcm,taurus-bf-cal-blob: > > + $ref: /schemas/types.yaml#/definitions/uint8-array > > + description: A per-device calibration blob for the Bluetooth radio. This > > + should be filled in by the bootloader from platform configuration > > + data, if necessary, and will be uploaded to the device. > > + This blob is used if the chip stepping of the Bluetooth module supports > > + beamforming. > > Same here. > > > + > > + local-bd-address: true > > + > > +required: > > + - compatible > > + - reg > > + - local-bd-address > > + - brcm,board-type > > + > > +additionalProperties: false > > + > > +examples: > > + - | > > + pcie { > > + #address-cells = <3>; > > + #size-cells = <2>; > > + > > + bluetooth@0,1 { > > The unit address seems to be different than reg. Right, this says dev 0, func 1. dtc can check this, but IIRC it would need 'device_type = "pci";' in the parent. So please add that, and verify you get a warning. Rob
On Mon, Sep 12, 2022 at 4:12 PM Rob Herring <robh@kernel.org> wrote: > > On Thu, Sep 08, 2022 at 01:19:17PM +0200, Krzysztof Kozlowski wrote: > > On 07/09/2022 19:09, Sven Peter wrote: > > > These chips are combined Wi-Fi/Bluetooth radios which expose a > > > PCI subfunction for the Bluetooth part. > > > They are found in Apple machines such as the x86 models with the T2 > > > chip or the arm64 models with the M1 or M2 chips. > > > > > > Signed-off-by: Sven Peter <sven@svenpeter.dev> > > > --- > > > +examples: > > > + - | > > > + pcie { > > > + #address-cells = <3>; > > > + #size-cells = <2>; > > > + > > > + bluetooth@0,1 { > > > > The unit address seems to be different than reg. > > Right, this says dev 0, func 1. Actually, the reg value of 0x100 is correct. func is bits 8-10. dev starts in bit 11. Rob
On Thu, Sep 15, 2022, at 15:09, Rob Herring wrote: > On Mon, Sep 12, 2022 at 4:12 PM Rob Herring <robh@kernel.org> wrote: >> >> On Thu, Sep 08, 2022 at 01:19:17PM +0200, Krzysztof Kozlowski wrote: >> > On 07/09/2022 19:09, Sven Peter wrote: >> > > These chips are combined Wi-Fi/Bluetooth radios which expose a >> > > PCI subfunction for the Bluetooth part. >> > > They are found in Apple machines such as the x86 models with the T2 >> > > chip or the arm64 models with the M1 or M2 chips. >> > > >> > > Signed-off-by: Sven Peter <sven@svenpeter.dev> >> > > --- > >> > > +examples: >> > > + - | >> > > + pcie { >> > > + #address-cells = <3>; >> > > + #size-cells = <2>; >> > > + >> > > + bluetooth@0,1 { >> > >> > The unit address seems to be different than reg. >> >> Right, this says dev 0, func 1. > > Actually, the reg value of 0x100 is correct. func is bits 8-10. dev > starts in bit 11. Yup, if I write the example as - | pcie@a0000000 { #address-cells = <3>; #size-cells = <2>; reg = <0xa0000000 0x1000000>; device_type = "pci"; ranges = <0x43000000 0x6 0xa0000000 0xa0000000 0x0 0x20000000>; bluetooth@0,1 { compatible = "pci14e4,5f69"; reg = <0x100 0x0 0x0 0x0 0x0>; brcm,board-type = "apple,honshu"; /* To be filled by the bootloader */ local-bd-address = [00 00 00 00 00 00]; }; }; then no warnings appear. If I instead use "bluetooth@0,2" I get the following warning: Warning (pci_device_reg): /example-0/pcie@a0000000/bluetooth@0,2: PCI unit address format error, expected "0,1" Sven
Hi, v1: https://lore.kernel.org/asahi/20220801103633.27772-1-sven@svenpeter.dev/ Here's v2 of the Apple/Broadcom Bluetooth series. Most changes from v1 are only related to the device tree bindings. Other than that I fixed a few minor bugs and adjusted some commit messages to make checkpatch happier. Best, Sven Sven Peter (5): dt-bindings: net: Add generic Bluetooth controller dt-bindings: net: Add Broadcom BCM4377 family PCIe Bluetooth Bluetooth: hci_event: Add quirk to ignore byte in LE Extended Adv Report Bluetooth: Add quirk to disable extended scanning Bluetooth: hci_bcm4377: Add new driver for BCM4377 PCI boards .../bindings/net/bluetooth-controller.yaml | 30 + .../devicetree/bindings/net/bluetooth.txt | 5 - .../bindings/net/brcm,bcm4377-bluetooth.yaml | 78 + .../bindings/net/qualcomm-bluetooth.yaml | 4 +- .../bindings/soc/qcom/qcom,wcnss.yaml | 8 +- MAINTAINERS | 2 + drivers/bluetooth/Kconfig | 12 + drivers/bluetooth/Makefile | 1 + drivers/bluetooth/hci_bcm4377.c | 2515 +++++++++++++++++ include/net/bluetooth/hci.h | 21 + include/net/bluetooth/hci_core.h | 4 +- net/bluetooth/hci_event.c | 4 + 12 files changed, 2671 insertions(+), 13 deletions(-) create mode 100644 Documentation/devicetree/bindings/net/bluetooth-controller.yaml delete mode 100644 Documentation/devicetree/bindings/net/bluetooth.txt create mode 100644 Documentation/devicetree/bindings/net/brcm,bcm4377-bluetooth.yaml create mode 100644 drivers/bluetooth/hci_bcm4377.c