X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=net%2Fbluetooth%2Frfcomm%2Ftty.c;h=eb2b52484c70e42e86cb329d093478cc225dab25;hb=refs%2Fremotes%2Fvserver;hp=74368f79ee5d084e0645c6af221062567f475e47;hpb=76828883507a47dae78837ab5dec5a5b4513c667;p=linux-2.6.git diff --git a/net/bluetooth/rfcomm/tty.c b/net/bluetooth/rfcomm/tty.c index 74368f79e..eb2b52484 100644 --- a/net/bluetooth/rfcomm/tty.c +++ b/net/bluetooth/rfcomm/tty.c @@ -27,7 +27,6 @@ * $Id: tty.c,v 1.24 2002/10/03 01:54:38 holtmann Exp $ */ -#include #include #include @@ -39,6 +38,7 @@ #include #include +#include #include #ifndef CONFIG_BT_RFCOMM_DEBUG @@ -162,6 +162,22 @@ static inline struct rfcomm_dev *rfcomm_dev_get(int id) return dev; } +static struct device *rfcomm_get_device(struct rfcomm_dev *dev) +{ + struct hci_dev *hdev; + struct hci_conn *conn; + + hdev = hci_get_route(&dev->dst, &dev->src); + if (!hdev) + return NULL; + + conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &dev->dst); + + hci_dev_put(hdev); + + return conn ? &conn->dev : NULL; +} + static int rfcomm_dev_add(struct rfcomm_dev_req *req, struct rfcomm_dlc *dlc) { struct rfcomm_dev *dev; @@ -170,10 +186,9 @@ static int rfcomm_dev_add(struct rfcomm_dev_req *req, struct rfcomm_dlc *dlc) BT_DBG("id %d channel %d", req->dev_id, req->channel); - dev = kmalloc(sizeof(struct rfcomm_dev), GFP_KERNEL); + dev = kzalloc(sizeof(struct rfcomm_dev), GFP_KERNEL); if (!dev) return -ENOMEM; - memset(dev, 0, sizeof(struct rfcomm_dev)); write_lock_bh(&rfcomm_dev_lock); @@ -246,7 +261,7 @@ out: return err; } - tty_register_device(rfcomm_tty_driver, dev->id, NULL); + tty_register_device(rfcomm_tty_driver, dev->id, rfcomm_get_device(dev)); return dev->id; } @@ -480,12 +495,8 @@ static void rfcomm_dev_data_ready(struct rfcomm_dlc *dlc, struct sk_buff *skb) BT_DBG("dlc %p tty %p len %d", dlc, tty, skb->len); - if (test_bit(TTY_DONT_FLIP, &tty->flags)) { - tty_buffer_request_room(tty, skb->len); - tty_insert_flip_string(tty, skb->data, skb->len); - tty_flip_buffer_push(tty); - } else - tty->ldisc.receive_buf(tty, skb->data, NULL, skb->len); + tty_insert_flip_string(tty, skb->data, skb->len); + tty_flip_buffer_push(tty); kfree_skb(skb); } @@ -686,9 +697,13 @@ static int rfcomm_tty_write_room(struct tty_struct *tty) BT_DBG("tty %p", tty); + if (!dev || !dev->dlc) + return 0; + room = rfcomm_room(dev->dlc) - atomic_read(&dev->wmem_alloc); if (room < 0) room = 0; + return room; } @@ -741,9 +756,9 @@ static int rfcomm_tty_ioctl(struct tty_struct *tty, struct file *filp, unsigned return -ENOIOCTLCMD; } -static void rfcomm_tty_set_termios(struct tty_struct *tty, struct termios *old) +static void rfcomm_tty_set_termios(struct tty_struct *tty, struct ktermios *old) { - struct termios *new = (struct termios *) tty->termios; + struct ktermios *new = tty->termios; int old_baud_rate = tty_termios_baud_rate(old); int new_baud_rate = tty_termios_baud_rate(new); @@ -754,6 +769,9 @@ static void rfcomm_tty_set_termios(struct tty_struct *tty, struct termios *old) BT_DBG("tty %p termios %p", tty, old); + if (!dev || !dev->dlc || !dev->dlc->session) + return; + /* Handle turning off CRTSCTS */ if ((old->c_cflag & CRTSCTS) && !(new->c_cflag & CRTSCTS)) BT_DBG("Turning off CRTSCTS unsupported"); @@ -901,12 +919,14 @@ static void rfcomm_tty_unthrottle(struct tty_struct *tty) static int rfcomm_tty_chars_in_buffer(struct tty_struct *tty) { struct rfcomm_dev *dev = (struct rfcomm_dev *) tty->driver_data; - struct rfcomm_dlc *dlc = dev->dlc; BT_DBG("tty %p dev %p", tty, dev); - if (!skb_queue_empty(&dlc->tx_queue)) - return dlc->mtu; + if (!dev || !dev->dlc) + return 0; + + if (!skb_queue_empty(&dev->dlc->tx_queue)) + return dev->dlc->mtu; return 0; } @@ -914,11 +934,12 @@ static int rfcomm_tty_chars_in_buffer(struct tty_struct *tty) static void rfcomm_tty_flush_buffer(struct tty_struct *tty) { struct rfcomm_dev *dev = (struct rfcomm_dev *) tty->driver_data; - if (!dev) - return; BT_DBG("tty %p dev %p", tty, dev); + if (!dev || !dev->dlc) + return; + skb_queue_purge(&dev->dlc->tx_queue); if (test_bit(TTY_DO_WRITE_WAKEUP, &tty->flags) && tty->ldisc.write_wakeup) @@ -938,11 +959,12 @@ static void rfcomm_tty_wait_until_sent(struct tty_struct *tty, int timeout) static void rfcomm_tty_hangup(struct tty_struct *tty) { struct rfcomm_dev *dev = (struct rfcomm_dev *) tty->driver_data; - if (!dev) - return; BT_DBG("tty %p dev %p", tty, dev); + if (!dev) + return; + rfcomm_tty_flush_buffer(tty); if (test_bit(RFCOMM_RELEASE_ONHUP, &dev->flags)) @@ -998,7 +1020,7 @@ static int rfcomm_tty_tiocmset(struct tty_struct *tty, struct file *filp, unsign /* ---- TTY structure ---- */ -static struct tty_operations rfcomm_ops = { +static const struct tty_operations rfcomm_ops = { .open = rfcomm_tty_open, .close = rfcomm_tty_close, .write = rfcomm_tty_write, @@ -1025,13 +1047,12 @@ int rfcomm_init_ttys(void) rfcomm_tty_driver->owner = THIS_MODULE; rfcomm_tty_driver->driver_name = "rfcomm"; - rfcomm_tty_driver->devfs_name = "bluetooth/rfcomm/"; rfcomm_tty_driver->name = "rfcomm"; rfcomm_tty_driver->major = RFCOMM_TTY_MAJOR; rfcomm_tty_driver->minor_start = RFCOMM_TTY_MINOR; rfcomm_tty_driver->type = TTY_DRIVER_TYPE_SERIAL; rfcomm_tty_driver->subtype = SERIAL_TYPE_NORMAL; - rfcomm_tty_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_NO_DEVFS; + rfcomm_tty_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV; rfcomm_tty_driver->init_termios = tty_std_termios; rfcomm_tty_driver->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL; tty_set_operations(rfcomm_tty_driver, &rfcomm_ops);