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Bluetooth: btbcm: Send HCI Reset before sending Apple specific commands

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The commit 7bee8b08c4 allows the Read Verbose Config Info to fail
gracefully and not cause the controller setup to abort. It seems the
reason that command failed in the first place was the missing HCI Reset
to bring the controller in full Bluetooth mode.

Apple Bluetooth controllers start out in HID mode and when in that mode
the Read Verbose Config Info command is not allowed. Sending HCI Reset
switches the controller into full HCI mode.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
This commit is contained in:
Marcel Holtmann 2015-10-03 12:01:08 +02:00 committed by Johan Hedberg
parent d06f107bcd
commit b224d3ff71
1 changed files with 8 additions and 2 deletions
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10
drivers/bluetooth/btbcm.c
View file

@ -475,12 +475,18 @@ EXPORT_SYMBOL_GPL(btbcm_setup_patchram);
int btbcm_setup_apple(struct hci_dev *hdev)
{
struct sk_buff *skb;
int err;
/* Reset */
err = btbcm_reset(hdev);
if (err)
return err;
/* Read Verbose Config Version Info */
skb = btbcm_read_verbose_config(hdev);
if (!IS_ERR(skb)) {
BT_INFO("%s: BCM: chip id %u build %4.4u", hdev->name, skb->data[1],
get_unaligned_le16(skb->data + 5));
BT_INFO("%s: BCM: chip id %u build %4.4u", hdev->name,
skb->data[1], get_unaligned_le16(skb->data + 5));
kfree_skb(skb);
}