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authorMarcel Holtmann <marcel@holtmann.org>2015-10-03 12:01:08 +0200
committerJohan Hedberg <johan.hedberg@intel.com>2015-10-05 10:28:41 +0300
commitb224d3ff717cc3af91a4ec74d863a176d79331af (patch)
tree6df254b6111d244d4ea5d0041238100dad03c727 /drivers/bluetooth
parentd06f107bcd828a6c3ecd4a7d449d5d0c0dba0326 (diff)
downloadlinux-b224d3ff717cc3af91a4ec74d863a176d79331af.tar.bz2
Bluetooth: btbcm: Send HCI Reset before sending Apple specific commands
The commit 7bee8b08c428 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>
Diffstat (limited to 'drivers/bluetooth')
-rw-r--r--drivers/bluetooth/btbcm.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/bluetooth/btbcm.c b/drivers/bluetooth/btbcm.c
index 02ed816a18f9..ad7371da5aaa 100644
--- a/drivers/bluetooth/btbcm.c
+++ b/drivers/bluetooth/btbcm.c
@@ -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);
}