From: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>
This adds a debugfs entry to set msft_opcode enabling vhci to emulate
controllers with MSFT extention support.
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>
---
drivers/bluetooth/hci_vhci.c | 52 ++++++++++++++++++++++++++++++++++++
1 file changed, 52 insertions(+)
diff --git a/drivers/bluetooth/hci_vhci.c b/drivers/bluetooth/hci_vhci.c
index 56c6b22be10b..68a970db8db1 100644
--- a/drivers/bluetooth/hci_vhci.c
+++ b/drivers/bluetooth/hci_vhci.c
@@ -42,6 +42,9 @@ struct vhci_data {
bool suspended;
bool wakeup;
+#if IS_ENABLED(CONFIG_BT_MSFTEXT)
+ __u16 msft_opcode;
+#endif
};
static int vhci_open_dev(struct hci_dev *hdev)
@@ -194,6 +197,44 @@ static const struct file_operations force_wakeup_fops = {
.llseek = default_llseek,
};
+#if IS_ENABLED(CONFIG_BT_MSFTEXT)
+
+static int msft_opcode_set(void *data, u64 val)
+{
+ struct vhci_data *vhci = data;
+
+ if (val > 0xffff || (val & 0xffff >> 10) != 0x3f)
+ return -EINVAL;
+
+ vhci->msft_opcode = val;
+
+ return 0;
+}
+
+static int msft_opcode_get(void *data, u64 *val)
+{
+ struct vhci_data *vhci = data;
+
+ *val = vhci->msft_opcode;
+
+ return 0;
+}
+
+DEFINE_DEBUGFS_ATTRIBUTE(msft_opcode_fops, msft_opcode_get, msft_opcode_set,
+ "%llu\n");
+
+static int vhci_setup(struct hci_dev *hdev)
+{
+ struct vhci_data *vhci = hci_get_drvdata(hdev);
+
+ if (vhci->msft_opcode)
+ hci_set_msft_opcode(hdev, vhci->msft_opcode);
+
+ return 0;
+}
+
+#endif /* CONFIG_BT_MSFTEXT */
+
static int __vhci_create_device(struct vhci_data *data, __u8 opcode)
{
struct hci_dev *hdev;
@@ -237,6 +278,12 @@ static int __vhci_create_device(struct vhci_data *data, __u8 opcode)
hdev->get_codec_config_data = vhci_get_codec_config_data;
hdev->wakeup = vhci_wakeup;
+ /* Enable custom setup if CONFIG_BT_MSFTEXT is selected */
+#if IS_ENABLED(CONFIG_BT_MSFTEXT)
+ hdev->setup = vhci_setup;
+ set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
+#endif
+
/* bit 6 is for external configuration */
if (opcode & 0x40)
set_bit(HCI_QUIRK_EXTERNAL_CONFIG, &hdev->quirks);
@@ -259,6 +306,11 @@ static int __vhci_create_device(struct vhci_data *data, __u8 opcode)
debugfs_create_file("force_wakeup", 0644, hdev->debugfs, data,
&force_wakeup_fops);
+#if IS_ENABLED(CONFIG_BT_MSFTEXT)
+ debugfs_create_file("msft_opcode", 0644, hdev->debugfs, data,
+ &msft_opcode_fops);
+#endif
+
hci_skb_pkt_type(skb) = HCI_VENDOR_PKT;
skb_put_u8(skb, 0xff);
--
2.31.1
