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Bluetooth: btqcomsmd: Add support for BD address setup

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This patch implements the hdev setup function since wcnss-bt does not have
persistent memory to store an allocated BD address. The device is therefore
marked as unconfigured if no BD address has been previously retrieved.

Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Cc: stable@vger.kernel.org
This commit is contained in:
Loic Poulain 2017-09-05 12:26:03 +02:00 committed by Marcel Holtmann
parent 4bc4e64c2c
commit 6e51811106
1 changed files with 34 additions and 0 deletions
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34
drivers/bluetooth/btqcomsmd.c
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@ -26,6 +26,7 @@
struct btqcomsmd {
struct hci_dev *hdev;
bdaddr_t bdaddr;
struct rpmsg_endpoint *acl_channel;
struct rpmsg_endpoint *cmd_channel;
};
@ -100,6 +101,38 @@ static int btqcomsmd_close(struct hci_dev *hdev)
return 0;
}
static int btqcomsmd_setup(struct hci_dev *hdev)
{
struct btqcomsmd *btq = hci_get_drvdata(hdev);
struct sk_buff *skb;
int err;
skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
if (IS_ERR(skb))
return PTR_ERR(skb);
kfree_skb(skb);
/* Devices do not have persistent storage for BD address. If no
* BD address has been retrieved during probe, mark the device
* as having an invalid BD address.
*/
if (!bacmp(&btq->bdaddr, BDADDR_ANY)) {
set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
return 0;
}
/* When setting a configured BD address fails, mark the device
* as having an invalid BD address.
*/
err = qca_set_bdaddr_rome(hdev, &btq->bdaddr);
if (err) {
set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
return 0;
}
return 0;
}
static int btqcomsmd_probe(struct platform_device *pdev)
{
struct btqcomsmd *btq;
@ -135,6 +168,7 @@ static int btqcomsmd_probe(struct platform_device *pdev)
hdev->open = btqcomsmd_open;
hdev->close = btqcomsmd_close;
hdev->send = btqcomsmd_send;
hdev->setup = btqcomsmd_setup;
hdev->set_bdaddr = qca_set_bdaddr_rome;
ret = hci_register_dev(hdev);