Bluetooth: hci_uart: Support operational speed during setup
Add initial and operational speeds.
Change to operational speed as soon as possible. If controller
set_baudrate() fails, continue at initial speed.
Signed-off-by: Frederic Danis <frederic.danis@linux.intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
diff --git a/drivers/bluetooth/hci_ldisc.c b/drivers/bluetooth/hci_ldisc.c
index 114015d..ac87346 100644
--- a/drivers/bluetooth/hci_ldisc.c
+++ b/drivers/bluetooth/hci_ldisc.c
@@ -266,11 +266,37 @@
return 0;
}
+void hci_uart_set_baudrate(struct hci_uart *hu, unsigned int speed)
+{
+ struct tty_struct *tty = hu->tty;
+ struct ktermios ktermios;
+
+ ktermios = tty->termios;
+ ktermios.c_cflag &= ~CBAUD;
+ ktermios.c_cflag |= BOTHER;
+ tty_termios_encode_baud_rate(&ktermios, speed, speed);
+
+ /* tty_set_termios() return not checked as it is always 0 */
+ tty_set_termios(tty, &ktermios);
+
+ BT_DBG("%s: New tty speed: %d", hu->hdev->name, tty->termios.c_ispeed);
+}
+
static int hci_uart_setup(struct hci_dev *hdev)
{
struct hci_uart *hu = hci_get_drvdata(hdev);
struct hci_rp_read_local_version *ver;
struct sk_buff *skb;
+ int err;
+
+ if (hu->proto->init_speed)
+ hci_uart_set_baudrate(hu, hu->proto->init_speed);
+
+ if (hu->proto->set_baudrate && hu->proto->oper_speed) {
+ err = hu->proto->set_baudrate(hu, hu->proto->oper_speed);
+ if (!err)
+ hci_uart_set_baudrate(hu, hu->proto->oper_speed);
+ }
if (hu->proto->setup)
return hu->proto->setup(hu);