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Bluetooth: btusb: Add support to read Intel debug feature

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The command shall read the Intel controller supported
debug feature. Based on the supported features additional debug
configuration shall be enabled.

Signed-off-by: Chethan T N <chethan.tumkur.narayan@intel.com>
Signed-off-by: Ps AyappadasX <AyappadasX.Ps@intel.com>
Signed-off-by: Kiran K <kiran.k@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Chethan T N
2020-06-08 17:57:46 +05:30
committed by Marcel Holtmann
parent f98aa80ff7
commit d74abe2138
3 changed files with 53 additions and 0 deletions
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32
drivers/bluetooth/btintel.c
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@@ -754,6 +754,38 @@ void btintel_reset_to_bootloader(struct hci_dev *hdev)
}
EXPORT_SYMBOL_GPL(btintel_reset_to_bootloader);
int btintel_read_debug_features(struct hci_dev *hdev,
struct intel_debug_features *features)
{
struct sk_buff *skb;
u8 page_no = 1;
/* Intel controller supports two pages, each page is of 128-bit
* feature bit mask. And each bit defines specific feature support
*/
skb = __hci_cmd_sync(hdev, 0xfca6, sizeof(page_no), &page_no,
HCI_INIT_TIMEOUT);
if (IS_ERR(skb)) {
bt_dev_err(hdev, "Reading supported features failed (%ld)",
PTR_ERR(skb));
return PTR_ERR(skb);
}
if (skb->len != (sizeof(features->page1) + 3)) {
bt_dev_err(hdev, "Supported features event size mismatch");
kfree_skb(skb);
return -EILSEQ;
}
memcpy(features->page1, skb->data + 3, sizeof(features->page1));
/* Read the supported features page2 if required in future.
*/
kfree_skb(skb);
return 0;
}
EXPORT_SYMBOL_GPL(btintel_read_debug_features);
MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
MODULE_DESCRIPTION("Bluetooth support for Intel devices ver " VERSION);
MODULE_VERSION(VERSION);