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path: root/drivers/bluetooth/hci_ldisc.c
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Diffstat (limited to 'drivers/bluetooth/hci_ldisc.c')
-rw-r--r--drivers/bluetooth/hci_ldisc.c68
1 files changed, 56 insertions, 12 deletions
diff --git a/drivers/bluetooth/hci_ldisc.c b/drivers/bluetooth/hci_ldisc.c
index e564579a611..74e0966b3ea 100644
--- a/drivers/bluetooth/hci_ldisc.c
+++ b/drivers/bluetooth/hci_ldisc.c
@@ -156,6 +156,35 @@ restart:
return 0;
}
+static void hci_uart_init_work(struct work_struct *work)
+{
+ struct hci_uart *hu = container_of(work, struct hci_uart, init_ready);
+ int err;
+
+ if (!test_and_clear_bit(HCI_UART_INIT_PENDING, &hu->hdev_flags))
+ return;
+
+ err = hci_register_dev(hu->hdev);
+ if (err < 0) {
+ BT_ERR("Can't register HCI device");
+ hci_free_dev(hu->hdev);
+ hu->hdev = NULL;
+ hu->proto->close(hu);
+ }
+
+ set_bit(HCI_UART_REGISTERED, &hu->flags);
+}
+
+int hci_uart_init_ready(struct hci_uart *hu)
+{
+ if (!test_bit(HCI_UART_INIT_PENDING, &hu->hdev_flags))
+ return -EALREADY;
+
+ schedule_work(&hu->init_ready);
+
+ return 0;
+}
+
/* ------- Interface to HCI layer ------ */
/* Initialize device */
static int hci_uart_open(struct hci_dev *hdev)
@@ -264,6 +293,8 @@ static int hci_uart_tty_open(struct tty_struct *tty)
hu->tty = tty;
tty->receive_room = 65536;
+ INIT_WORK(&hu->init_ready, hci_uart_init_work);
+
spin_lock_init(&hu->rx_lock);
/* Flush any pending characters in the driver and line discipline. */
@@ -286,28 +317,30 @@ static int hci_uart_tty_open(struct tty_struct *tty)
static void hci_uart_tty_close(struct tty_struct *tty)
{
struct hci_uart *hu = (void *)tty->disc_data;
+ struct hci_dev *hdev;
BT_DBG("tty %p", tty);
/* Detach from the tty */
tty->disc_data = NULL;
- if (hu) {
- struct hci_dev *hdev = hu->hdev;
+ if (!hu)
+ return;
- if (hdev)
- hci_uart_close(hdev);
+ hdev = hu->hdev;
+ if (hdev)
+ hci_uart_close(hdev);
- if (test_and_clear_bit(HCI_UART_PROTO_SET, &hu->flags)) {
- if (hdev) {
+ if (test_and_clear_bit(HCI_UART_PROTO_SET, &hu->flags)) {
+ if (hdev) {
+ if (test_bit(HCI_UART_REGISTERED, &hu->flags))
hci_unregister_dev(hdev);
- hci_free_dev(hdev);
- }
- hu->proto->close(hu);
+ hci_free_dev(hdev);
}
-
- kfree(hu);
+ hu->proto->close(hu);
}
+
+ kfree(hu);
}
/* hci_uart_tty_wakeup()
@@ -394,19 +427,24 @@ static int hci_uart_register_dev(struct hci_uart *hu)
set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
if (!test_bit(HCI_UART_RESET_ON_INIT, &hu->hdev_flags))
- set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
+ set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
if (test_bit(HCI_UART_CREATE_AMP, &hu->hdev_flags))
hdev->dev_type = HCI_AMP;
else
hdev->dev_type = HCI_BREDR;
+ if (test_bit(HCI_UART_INIT_PENDING, &hu->hdev_flags))
+ return 0;
+
if (hci_register_dev(hdev) < 0) {
BT_ERR("Can't register HCI device");
hci_free_dev(hdev);
return -ENODEV;
}
+ set_bit(HCI_UART_REGISTERED, &hu->flags);
+
return 0;
}
@@ -558,6 +596,9 @@ static int __init hci_uart_init(void)
#ifdef CONFIG_BT_HCIUART_ATH3K
ath_init();
#endif
+#ifdef CONFIG_BT_HCIUART_3WIRE
+ h5_init();
+#endif
return 0;
}
@@ -578,6 +619,9 @@ static void __exit hci_uart_exit(void)
#ifdef CONFIG_BT_HCIUART_ATH3K
ath_deinit();
#endif
+#ifdef CONFIG_BT_HCIUART_3WIRE
+ h5_deinit();
+#endif
/* Release tty registration of line discipline */
if ((err = tty_unregister_ldisc(N_HCI)))