[PATCH 2/7] Bluetooth: hci_uart: Add HCIUARTSETBAUDRATE ioctl

[Frederic Danis <frederic.danis@linux.intel.com>]

This allows user space application to set final speed requested for UART
device. UART port is open at init speed by user space application.

Signed-off-by: Frederic Danis <frederic.danis@linux.intel.com>
---
 drivers/bluetooth/hci_ldisc.c | 6 ++++++
 drivers/bluetooth/hci_uart.h  | 2 ++
 2 files changed, 8 insertions(+)

diff --git a/drivers/bluetooth/hci_ldisc.c b/drivers/bluetooth/hci_ldisc.c
index 5c9a73f..190a7f8 100644
--- a/drivers/bluetooth/hci_ldisc.c
+++ b/drivers/bluetooth/hci_ldisc.c
@@ -609,6 +609,12 @@ static int hci_uart_tty_ioctl(struct tty_struct *tty, struct file *file,
 	case HCIUARTGETFLAGS:
 		return hu->hdev_flags;
 
+	case HCIUARTSETBAUDRATE:
+		if (test_bit(HCI_UART_PROTO_SET, &hu->flags))
+			return -EBUSY;
+		hu->speed = arg;
+		break;
+
 	default:
 		err = n_tty_ioctl_helper(tty, file, cmd, arg);
 		break;
diff --git a/drivers/bluetooth/hci_uart.h b/drivers/bluetooth/hci_uart.h
index 72120a5..09a47b4 100644
--- a/drivers/bluetooth/hci_uart.h
+++ b/drivers/bluetooth/hci_uart.h
@@ -33,6 +33,7 @@
 #define HCIUARTGETDEVICE	_IOR('U', 202, int)
 #define HCIUARTSETFLAGS		_IOW('U', 203, int)
 #define HCIUARTGETFLAGS		_IOR('U', 204, int)
+#define HCIUARTSETBAUDRATE	_IOW('U', 205, int)
 
 /* UART protocols */
 #define HCI_UART_MAX_PROTO	8
@@ -72,6 +73,7 @@ struct hci_uart {
 	struct hci_dev		*hdev;
 	unsigned long		flags;
 	unsigned long		hdev_flags;
+	unsigned long		speed;
 
 	struct work_struct	init_ready;
 	struct work_struct	write_work;
-- 
1.9.1