unimore/kernel-hacking-2024-linux-steffo
unimore/kernel-hacking-2024-linux-steffo
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Bluetooth: Populate hci_set_hw_info for Intel and Realtek

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The hardware information surfaced via debugfs might be usable by the
userspace to set some configuration knobs. This patch sets the hw_info
for Intel and Realtek chipsets.

Below are some possible output of the hardware_info debugfs file.
INTEL platform=55 variant=24
RTL lmp_subver=34898 hci_rev=10 hci_ver=11 hci_bus=1

Signed-off-by: Archie Pusaka <apusaka@chromium.org>
Reviewed-by: Abhishek Pandit-Subedi <abhishekpandit@google.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
This commit is contained in:
Archie Pusaka 2024-04-22 17:20:28 +08:00 committed by Luiz Augusto von Dentz
parent 94c603c28e
commit b39910bb54
2 changed files with 16 additions and 0 deletions
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9
drivers/bluetooth/btintel.c
View file

@ -2956,6 +2956,11 @@ static int btintel_setup_combined(struct hci_dev *hdev)
err = -EINVAL;
}
hci_set_hw_info(hdev,
"INTEL platform=%u variant=%u revision=%u",
ver.hw_platform, ver.hw_variant,
ver.hw_revision);
goto exit_error;
}
@ -3060,6 +3065,10 @@ static int btintel_setup_combined(struct hci_dev *hdev)
break;
}
hci_set_hw_info(hdev, "INTEL platform=%u variant=%u",
INTEL_HW_PLATFORM(ver_tlv.cnvi_bt),
INTEL_HW_VARIANT(ver_tlv.cnvi_bt));
exit_error:
kfree_skb(skb);

7
drivers/bluetooth/btrtl.c
View file

@ -1339,6 +1339,13 @@ int btrtl_setup_realtek(struct hci_dev *hdev)
btrtl_set_quirks(hdev, btrtl_dev);
hci_set_hw_info(hdev,
"RTL lmp_subver=%u hci_rev=%u hci_ver=%u hci_bus=%u",
btrtl_dev->ic_info->lmp_subver,
btrtl_dev->ic_info->hci_rev,
btrtl_dev->ic_info->hci_ver,
btrtl_dev->ic_info->hci_bus);
btrtl_free(btrtl_dev);
return ret;
}