diff options
Diffstat (limited to 'drivers/bluetooth/hci_ldisc.c')
| -rw-r--r-- | drivers/bluetooth/hci_ldisc.c | 45 |
1 files changed, 22 insertions, 23 deletions
diff --git a/drivers/bluetooth/hci_ldisc.c b/drivers/bluetooth/hci_ldisc.c index 9497c469efd2..2edd30556956 100644 --- a/drivers/bluetooth/hci_ldisc.c +++ b/drivers/bluetooth/hci_ldisc.c @@ -113,16 +113,21 @@ static inline struct sk_buff *hci_uart_dequeue(struct hci_uart *hu) { struct sk_buff *skb = hu->tx_skb; - if (!skb) - skb = hu->proto->dequeue(hu); - else + if (!skb) { + if (test_bit(HCI_UART_PROTO_READY, &hu->flags)) + skb = hu->proto->dequeue(hu); + } else { hu->tx_skb = NULL; + } return skb; } int hci_uart_tx_wakeup(struct hci_uart *hu) { + if (!test_bit(HCI_UART_PROTO_READY, &hu->flags)) + return 0; + if (test_and_set_bit(HCI_UART_SENDING, &hu->tx_state)) { set_bit(HCI_UART_TX_WAKEUP, &hu->tx_state); return 0; @@ -134,6 +139,7 @@ int hci_uart_tx_wakeup(struct hci_uart *hu) return 0; } +EXPORT_SYMBOL_GPL(hci_uart_tx_wakeup); static void hci_uart_write_work(struct work_struct *work) { @@ -176,6 +182,7 @@ static void hci_uart_init_work(struct work_struct *work) { struct hci_uart *hu = container_of(work, struct hci_uart, init_ready); int err; + struct hci_dev *hdev; if (!test_and_clear_bit(HCI_UART_INIT_PENDING, &hu->hdev_flags)) return; @@ -183,9 +190,12 @@ static void hci_uart_init_work(struct work_struct *work) err = hci_register_dev(hu->hdev); if (err < 0) { BT_ERR("Can't register HCI device"); - hci_free_dev(hu->hdev); + hdev = hu->hdev; hu->hdev = NULL; + hci_free_dev(hdev); + clear_bit(HCI_UART_PROTO_READY, &hu->flags); hu->proto->close(hu); + return; } set_bit(HCI_UART_REGISTERED, &hu->flags); @@ -251,6 +261,9 @@ static int hci_uart_send_frame(struct hci_dev *hdev, struct sk_buff *skb) BT_DBG("%s: type %d len %d", hdev->name, hci_skb_pkt_type(skb), skb->len); + if (!test_bit(HCI_UART_PROTO_READY, &hu->flags)) + return -EUNATCH; + hu->proto->enqueue(hu, skb); hci_uart_tx_wakeup(hu); @@ -318,25 +331,6 @@ void hci_uart_set_speeds(struct hci_uart *hu, unsigned int init_speed, hu->oper_speed = oper_speed; } -void hci_uart_init_tty(struct hci_uart *hu) -{ - struct tty_struct *tty = hu->tty; - struct ktermios ktermios; - - /* Bring the UART into a known 8 bits no parity hw fc state */ - ktermios = tty->termios; - ktermios.c_iflag &= ~(IGNBRK | BRKINT | PARMRK | ISTRIP | - INLCR | IGNCR | ICRNL | IXON); - ktermios.c_oflag &= ~OPOST; - ktermios.c_lflag &= ~(ECHO | ECHONL | ICANON | ISIG | IEXTEN); - ktermios.c_cflag &= ~(CSIZE | PARENB); - ktermios.c_cflag |= CS8; - ktermios.c_cflag |= CRTSCTS; - - /* tty_set_termios() return not checked as it is always 0 */ - tty_set_termios(tty, &ktermios); -} - void hci_uart_set_baudrate(struct hci_uart *hu, unsigned int speed) { struct tty_struct *tty = hu->tty; @@ -459,6 +453,10 @@ static int hci_uart_tty_open(struct tty_struct *tty) hu->tty = tty; tty->receive_room = 65536; + /* disable alignment support by default */ + hu->alignment = 1; + hu->padding = 0; + INIT_WORK(&hu->init_ready, hci_uart_init_work); INIT_WORK(&hu->write_work, hci_uart_write_work); @@ -616,6 +614,7 @@ static int hci_uart_register_dev(struct hci_uart *hu) if (hci_register_dev(hdev) < 0) { BT_ERR("Can't register HCI device"); + hu->hdev = NULL; hci_free_dev(hdev); return -ENODEV; } |