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Subject[PATCH 2/2] Bluetooth: btqcomsmd: BD address setup
Date
From: Loic Poulain <loic.poulain@linaro.org>

Bluetooth BD address can be retrieved in the same way as
for wcnss-wlan MAC address. This patch mainly stores the
local-mac-address property and sets the BD address during
hci device setup.

Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
---
drivers/bluetooth/btqcomsmd.c | 28 ++++++++++++++++++++++++++++
1 file changed, 28 insertions(+)

diff --git a/drivers/bluetooth/btqcomsmd.c b/drivers/bluetooth/btqcomsmd.c
index d00c4fdae924..443bb2099329 100644
--- a/drivers/bluetooth/btqcomsmd.c
+++ b/drivers/bluetooth/btqcomsmd.c
@@ -26,6 +26,7 @@
struct btqcomsmd {
struct hci_dev *hdev;

+ const bdaddr_t *addr;
struct rpmsg_endpoint *acl_channel;
struct rpmsg_endpoint *cmd_channel;
};
@@ -100,6 +101,27 @@ 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;
+
+ skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
+ if (IS_ERR(skb))
+ return PTR_ERR(skb);
+ kfree_skb(skb);
+
+ if (btq->addr) {
+ bdaddr_t bdaddr;
+
+ /* btq->addr stored with most significant byte first */
+ baswap(&bdaddr, btq->addr);
+ return qca_set_bdaddr_rome(hdev, &bdaddr);
+ }
+
+ return 0;
+}
+
static int btqcomsmd_probe(struct platform_device *pdev)
{
struct btqcomsmd *btq;
@@ -123,6 +145,11 @@ static int btqcomsmd_probe(struct platform_device *pdev)
if (IS_ERR(btq->cmd_channel))
return PTR_ERR(btq->cmd_channel);

+ btq->addr = of_get_property(pdev->dev.of_node, "local-mac-address",
+ &ret);
+ if (ret != sizeof(bdaddr_t))
+ btq->addr = NULL;
+
hdev = hci_alloc_dev();
if (!hdev)
return -ENOMEM;
@@ -135,6 +162,7 @@ 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);
--
2.12.0
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