diff options
Diffstat (limited to 'drivers/tty/synclink_gt.c')
| -rw-r--r-- | drivers/tty/synclink_gt.c | 280 |
1 files changed, 103 insertions, 177 deletions
diff --git a/drivers/tty/synclink_gt.c b/drivers/tty/synclink_gt.c index b794177ccfb9..25e9befdda3a 100644 --- a/drivers/tty/synclink_gt.c +++ b/drivers/tty/synclink_gt.c @@ -91,7 +91,6 @@ static char *driver_name = "SyncLink GT"; static char *slgt_driver_name = "synclink_gt"; static char *tty_dev_prefix = "ttySLG"; MODULE_LICENSE("GPL"); -#define MGSL_MAGIC 0x5401 #define MAX_DEVICES 32 static const struct pci_device_id pci_table[] = { @@ -137,37 +136,14 @@ MODULE_PARM_DESC(maxframe, "Maximum frame size used by device (4096 to 65535)"); */ static struct tty_driver *serial_driver; -static int open(struct tty_struct *tty, struct file * filp); -static void close(struct tty_struct *tty, struct file * filp); -static void hangup(struct tty_struct *tty); -static void set_termios(struct tty_struct *tty, struct ktermios *old_termios); - -static int write(struct tty_struct *tty, const unsigned char *buf, int count); -static int put_char(struct tty_struct *tty, unsigned char ch); -static void send_xchar(struct tty_struct *tty, char ch); static void wait_until_sent(struct tty_struct *tty, int timeout); -static int write_room(struct tty_struct *tty); -static void flush_chars(struct tty_struct *tty); static void flush_buffer(struct tty_struct *tty); -static void tx_hold(struct tty_struct *tty); static void tx_release(struct tty_struct *tty); -static int ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg); -static int chars_in_buffer(struct tty_struct *tty); -static void throttle(struct tty_struct * tty); -static void unthrottle(struct tty_struct * tty); -static int set_break(struct tty_struct *tty, int break_state); - /* - * generic HDLC support and callbacks + * generic HDLC support */ -#if SYNCLINK_GENERIC_HDLC #define dev_to_port(D) (dev_to_hdlc(D)->priv) -static void hdlcdev_tx_done(struct slgt_info *info); -static void hdlcdev_rx(struct slgt_info *info, char *buf, int size); -static int hdlcdev_init(struct slgt_info *info); -static void hdlcdev_exit(struct slgt_info *info); -#endif /* @@ -186,9 +162,6 @@ struct cond_wait { wait_queue_entry_t wait; unsigned int data; }; -static void init_cond_wait(struct cond_wait *w, unsigned int data); -static void add_cond_wait(struct cond_wait **head, struct cond_wait *w); -static void remove_cond_wait(struct cond_wait **head, struct cond_wait *w); static void flush_cond_wait(struct cond_wait **head); /* @@ -241,8 +214,6 @@ struct slgt_info { struct slgt_info *next_device; /* device list link */ - int magic; - char device_name[25]; struct pci_dev *pdev; @@ -443,12 +414,8 @@ static void shutdown(struct slgt_info *info); static void program_hw(struct slgt_info *info); static void change_params(struct slgt_info *info); -static int register_test(struct slgt_info *info); -static int irq_test(struct slgt_info *info); -static int loopback_test(struct slgt_info *info); static int adapter_test(struct slgt_info *info); -static void reset_adapter(struct slgt_info *info); static void reset_port(struct slgt_info *info); static void async_mode(struct slgt_info *info); static void sync_mode(struct slgt_info *info); @@ -457,41 +424,23 @@ static void rx_stop(struct slgt_info *info); static void rx_start(struct slgt_info *info); static void reset_rbufs(struct slgt_info *info); static void free_rbufs(struct slgt_info *info, unsigned int first, unsigned int last); -static void rdma_reset(struct slgt_info *info); static bool rx_get_frame(struct slgt_info *info); static bool rx_get_buf(struct slgt_info *info); static void tx_start(struct slgt_info *info); static void tx_stop(struct slgt_info *info); static void tx_set_idle(struct slgt_info *info); -static unsigned int free_tbuf_count(struct slgt_info *info); static unsigned int tbuf_bytes(struct slgt_info *info); static void reset_tbufs(struct slgt_info *info); static void tdma_reset(struct slgt_info *info); static bool tx_load(struct slgt_info *info, const char *buf, unsigned int count); -static void get_signals(struct slgt_info *info); -static void set_signals(struct slgt_info *info); -static void enable_loopback(struct slgt_info *info); +static void get_gtsignals(struct slgt_info *info); +static void set_gtsignals(struct slgt_info *info); static void set_rate(struct slgt_info *info, u32 data_rate); -static int bh_action(struct slgt_info *info); -static void bh_handler(struct work_struct *work); static void bh_transmit(struct slgt_info *info); -static void isr_serial(struct slgt_info *info); -static void isr_rdma(struct slgt_info *info); static void isr_txeom(struct slgt_info *info, unsigned short status); -static void isr_tdma(struct slgt_info *info); - -static int alloc_dma_bufs(struct slgt_info *info); -static void free_dma_bufs(struct slgt_info *info); -static int alloc_desc(struct slgt_info *info); -static void free_desc(struct slgt_info *info); -static int alloc_bufs(struct slgt_info *info, struct slgt_desc *bufs, int count); -static void free_bufs(struct slgt_info *info, struct slgt_desc *bufs, int count); - -static int alloc_tmp_rbuf(struct slgt_info *info); -static void free_tmp_rbuf(struct slgt_info *info); static void tx_timeout(struct timer_list *t); static void rx_timeout(struct timer_list *t); @@ -509,10 +458,6 @@ static int tx_abort(struct slgt_info *info); static int rx_enable(struct slgt_info *info, int enable); static int modem_input_wait(struct slgt_info *info,int arg); static int wait_mgsl_event(struct slgt_info *info, int __user *mask_ptr); -static int tiocmget(struct tty_struct *tty); -static int tiocmset(struct tty_struct *tty, - unsigned int set, unsigned int clear); -static int set_break(struct tty_struct *tty, int break_state); static int get_interface(struct slgt_info *info, int __user *if_mode); static int set_interface(struct slgt_info *info, int if_mode); static int set_gpio(struct slgt_info *info, struct gpio_desc __user *gpio); @@ -526,9 +471,6 @@ static int set_xctrl(struct slgt_info *info, int if_mode); /* * driver functions */ -static void add_device(struct slgt_info *info); -static void device_init(int adapter_num, struct pci_dev *pdev); -static int claim_resources(struct slgt_info *info); static void release_resources(struct slgt_info *info); /* @@ -609,10 +551,6 @@ static inline int sanity_check(struct slgt_info *info, char *devname, const char printk("null struct slgt_info for (%s) in %s\n", devname, name); return 1; } - if (info->magic != MGSL_MAGIC) { - printk("bad magic number struct slgt_info (%s) in %s\n", devname, name); - return 1; - } #else if (!info) return 1; @@ -620,7 +558,7 @@ static inline int sanity_check(struct slgt_info *info, char *devname, const char return 0; } -/** +/* * line discipline callback wrappers * * The wrappers maintain line discipline references @@ -672,7 +610,6 @@ static int open(struct tty_struct *tty, struct file *filp) DBGINFO(("%s open, old ref count = %d\n", info->device_name, info->port.count)); mutex_lock(&info->port.mutex); - info->port.low_latency = (info->port.flags & ASYNC_LOW_LATENCY) ? 1 : 0; spin_lock_irqsave(&info->netlock, flags); if (info->netcount) { @@ -763,7 +700,8 @@ static void hangup(struct tty_struct *tty) wake_up_interruptible(&info->port.open_wait); } -static void set_termios(struct tty_struct *tty, struct ktermios *old_termios) +static void set_termios(struct tty_struct *tty, + const struct ktermios *old_termios) { struct slgt_info *info = tty->driver_data; unsigned long flags; @@ -776,7 +714,7 @@ static void set_termios(struct tty_struct *tty, struct ktermios *old_termios) if ((old_termios->c_cflag & CBAUD) && !C_BAUD(tty)) { info->signals &= ~(SerialSignal_RTS | SerialSignal_DTR); spin_lock_irqsave(&info->lock,flags); - set_signals(info); + set_gtsignals(info); spin_unlock_irqrestore(&info->lock,flags); } @@ -786,7 +724,7 @@ static void set_termios(struct tty_struct *tty, struct ktermios *old_termios) if (!C_CRTSCTS(tty) || !tty_throttled(tty)) info->signals |= SerialSignal_RTS; spin_lock_irqsave(&info->lock,flags); - set_signals(info); + set_gtsignals(info); spin_unlock_irqrestore(&info->lock,flags); } @@ -824,7 +762,7 @@ static int write(struct tty_struct *tty, if (!info->tx_buf || (count > info->max_frame_size)) return -EIO; - if (!count || tty->stopped || tty->hw_stopped) + if (!count || tty->flow.stopped || tty->hw_stopped) return 0; spin_lock_irqsave(&info->lock, flags); @@ -924,15 +862,15 @@ exit: DBGINFO(("%s wait_until_sent exit\n", info->device_name)); } -static int write_room(struct tty_struct *tty) +static unsigned int write_room(struct tty_struct *tty) { struct slgt_info *info = tty->driver_data; - int ret; + unsigned int ret; if (sanity_check(info, tty->name, "write_room")) return 0; ret = (info->tx_active) ? 0 : HDLC_MAX_FRAME_SIZE; - DBGINFO(("%s write_room=%d\n", info->device_name, ret)); + DBGINFO(("%s write_room=%u\n", info->device_name, ret)); return ret; } @@ -945,7 +883,7 @@ static void flush_chars(struct tty_struct *tty) return; DBGINFO(("%s flush_chars entry tx_count=%d\n", info->device_name, info->tx_count)); - if (info->tx_count <= 0 || tty->stopped || + if (info->tx_count <= 0 || tty->flow.stopped || tty->hw_stopped || !info->tx_buf) return; @@ -1237,7 +1175,7 @@ static inline void line_info(struct seq_file *m, struct slgt_info *info) /* output current serial signal states */ spin_lock_irqsave(&info->lock,flags); - get_signals(info); + get_gtsignals(info); spin_unlock_irqrestore(&info->lock,flags); stat_buf[0] = 0; @@ -1310,14 +1248,14 @@ static int synclink_gt_proc_show(struct seq_file *m, void *v) /* * return count of bytes in transmit buffer */ -static int chars_in_buffer(struct tty_struct *tty) +static unsigned int chars_in_buffer(struct tty_struct *tty) { struct slgt_info *info = tty->driver_data; - int count; + unsigned int count; if (sanity_check(info, tty->name, "chars_in_buffer")) return 0; count = tbuf_bytes(info); - DBGINFO(("%s chars_in_buffer()=%d\n", info->device_name, count)); + DBGINFO(("%s chars_in_buffer()=%u\n", info->device_name, count)); return count; } @@ -1337,7 +1275,7 @@ static void throttle(struct tty_struct * tty) if (C_CRTSCTS(tty)) { spin_lock_irqsave(&info->lock,flags); info->signals &= ~SerialSignal_RTS; - set_signals(info); + set_gtsignals(info); spin_unlock_irqrestore(&info->lock,flags); } } @@ -1362,7 +1300,7 @@ static void unthrottle(struct tty_struct * tty) if (C_CRTSCTS(tty)) { spin_lock_irqsave(&info->lock,flags); info->signals |= SerialSignal_RTS; - set_signals(info); + set_gtsignals(info); spin_unlock_irqrestore(&info->lock,flags); } } @@ -1395,14 +1333,14 @@ static int set_break(struct tty_struct *tty, int break_state) #if SYNCLINK_GENERIC_HDLC /** - * called by generic HDLC layer when protocol selected (PPP, frame relay, etc.) - * set encoding and frame check sequence (FCS) options + * hdlcdev_attach - called by generic HDLC layer when protocol selected (PPP, frame relay, etc.) + * @dev: pointer to network device structure + * @encoding: serial encoding setting + * @parity: FCS setting * - * dev pointer to network device structure - * encoding serial encoding setting - * parity FCS setting + * Set encoding and frame check sequence (FCS) options. * - * returns 0 if success, otherwise error code + * Return: 0 if success, otherwise error code */ static int hdlcdev_attach(struct net_device *dev, unsigned short encoding, unsigned short parity) @@ -1446,10 +1384,9 @@ static int hdlcdev_attach(struct net_device *dev, unsigned short encoding, } /** - * called by generic HDLC layer to send frame - * - * skb socket buffer containing HDLC frame - * dev pointer to network device structure + * hdlcdev_xmit - called by generic HDLC layer to send a frame + * @skb: socket buffer containing HDLC frame + * @dev: pointer to network device structure */ static netdev_tx_t hdlcdev_xmit(struct sk_buff *skb, struct net_device *dev) @@ -1483,12 +1420,12 @@ static netdev_tx_t hdlcdev_xmit(struct sk_buff *skb, } /** - * called by network layer when interface enabled - * claim resources and initialize hardware + * hdlcdev_open - called by network layer when interface enabled + * @dev: pointer to network device structure * - * dev pointer to network device structure + * Claim resources and initialize hardware. * - * returns 0 if success, otherwise error code + * Return: 0 if success, otherwise error code */ static int hdlcdev_open(struct net_device *dev) { @@ -1534,7 +1471,7 @@ static int hdlcdev_open(struct net_device *dev) /* inform generic HDLC layer of current DCD status */ spin_lock_irqsave(&info->lock, flags); - get_signals(info); + get_gtsignals(info); spin_unlock_irqrestore(&info->lock, flags); if (info->signals & SerialSignal_DCD) netif_carrier_on(dev); @@ -1544,12 +1481,12 @@ static int hdlcdev_open(struct net_device *dev) } /** - * called by network layer when interface is disabled - * shutdown hardware and release resources + * hdlcdev_close - called by network layer when interface is disabled + * @dev: pointer to network device structure * - * dev pointer to network device structure + * Shutdown hardware and release resources. * - * returns 0 if success, otherwise error code + * Return: 0 if success, otherwise error code */ static int hdlcdev_close(struct net_device *dev) { @@ -1574,19 +1511,18 @@ static int hdlcdev_close(struct net_device *dev) } /** - * called by network layer to process IOCTL call to network device + * hdlcdev_ioctl - called by network layer to process IOCTL call to network device + * @dev: pointer to network device structure + * @ifr: pointer to network interface request structure + * @cmd: IOCTL command code * - * dev pointer to network device structure - * ifr pointer to network interface request structure - * cmd IOCTL command code - * - * returns 0 if success, otherwise error code + * Return: 0 if success, otherwise error code */ -static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) +static int hdlcdev_ioctl(struct net_device *dev, struct if_settings *ifs) { const size_t size = sizeof(sync_serial_settings); sync_serial_settings new_line; - sync_serial_settings __user *line = ifr->ifr_settings.ifs_ifsu.sync; + sync_serial_settings __user *line = ifs->ifs_ifsu.sync; struct slgt_info *info = dev_to_port(dev); unsigned int flags; @@ -1596,17 +1532,14 @@ static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) if (info->port.count) return -EBUSY; - if (cmd != SIOCWANDEV) - return hdlc_ioctl(dev, ifr, cmd); - memset(&new_line, 0, sizeof(new_line)); - switch(ifr->ifr_settings.type) { + switch (ifs->type) { case IF_GET_IFACE: /* return current sync_serial_settings */ - ifr->ifr_settings.type = IF_IFACE_SYNC_SERIAL; - if (ifr->ifr_settings.size < size) { - ifr->ifr_settings.size = size; /* data size wanted */ + ifs->type = IF_IFACE_SYNC_SERIAL; + if (ifs->size < size) { + ifs->size = size; /* data size wanted */ return -ENOBUFS; } @@ -1673,14 +1606,14 @@ static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) return 0; default: - return hdlc_ioctl(dev, ifr, cmd); + return hdlc_ioctl(dev, ifs); } } /** - * called by network layer when transmit timeout is detected - * - * dev pointer to network device structure + * hdlcdev_tx_timeout - called by network layer when transmit timeout is detected + * @dev: pointer to network device structure + * @txqueue: unused */ static void hdlcdev_tx_timeout(struct net_device *dev, unsigned int txqueue) { @@ -1700,10 +1633,10 @@ static void hdlcdev_tx_timeout(struct net_device *dev, unsigned int txqueue) } /** - * called by device driver when transmit completes - * reenable network layer transmit if stopped + * hdlcdev_tx_done - called by device driver when transmit completes + * @info: pointer to device instance information * - * info pointer to device instance information + * Reenable network layer transmit if stopped. */ static void hdlcdev_tx_done(struct slgt_info *info) { @@ -1712,12 +1645,12 @@ static void hdlcdev_tx_done(struct slgt_info *info) } /** - * called by device driver when frame received - * pass frame to network layer + * hdlcdev_rx - called by device driver when frame received + * @info: pointer to device instance information + * @buf: pointer to buffer contianing frame data + * @size: count of data bytes in buf * - * info pointer to device instance information - * buf pointer to buffer contianing frame data - * size count of data bytes in buf + * Pass frame to network layer. */ static void hdlcdev_rx(struct slgt_info *info, char *buf, int size) { @@ -1746,17 +1679,17 @@ static const struct net_device_ops hdlcdev_ops = { .ndo_open = hdlcdev_open, .ndo_stop = hdlcdev_close, .ndo_start_xmit = hdlc_start_xmit, - .ndo_do_ioctl = hdlcdev_ioctl, + .ndo_siocwandev = hdlcdev_ioctl, .ndo_tx_timeout = hdlcdev_tx_timeout, }; /** - * called by device driver when adding device instance - * do generic HDLC initialization + * hdlcdev_init - called by device driver when adding device instance + * @info: pointer to device instance information * - * info pointer to device instance information + * Do generic HDLC initialization. * - * returns 0 if success, otherwise error code + * Return: 0 if success, otherwise error code */ static int hdlcdev_init(struct slgt_info *info) { @@ -1800,13 +1733,15 @@ static int hdlcdev_init(struct slgt_info *info) } /** - * called by device driver when removing device instance - * do generic HDLC cleanup + * hdlcdev_exit - called by device driver when removing device instance + * @info: pointer to device instance information * - * info pointer to device instance information + * Do generic HDLC cleanup. */ static void hdlcdev_exit(struct slgt_info *info) { + if (!info->netdev) + return; unregister_hdlc_device(info->netdev); free_netdev(info->netdev); info->netdev = NULL; @@ -2290,7 +2225,7 @@ static void isr_txeom(struct slgt_info *info, unsigned short status) if (info->params.mode != MGSL_MODE_ASYNC && info->drop_rts_on_tx_done) { info->signals &= ~SerialSignal_RTS; info->drop_rts_on_tx_done = false; - set_signals(info); + set_gtsignals(info); } #if SYNCLINK_GENERIC_HDLC @@ -2299,7 +2234,7 @@ static void isr_txeom(struct slgt_info *info, unsigned short status) else #endif { - if (info->port.tty && (info->port.tty->stopped || info->port.tty->hw_stopped)) { + if (info->port.tty && (info->port.tty->flow.stopped || info->port.tty->hw_stopped)) { tx_stop(info); return; } @@ -2455,7 +2390,7 @@ static void shutdown(struct slgt_info *info) if (!info->port.tty || info->port.tty->termios.c_cflag & HUPCL) { info->signals &= ~(SerialSignal_RTS | SerialSignal_DTR); - set_signals(info); + set_gtsignals(info); } flush_cond_wait(&info->gpio_wait_q); @@ -2483,7 +2418,7 @@ static void program_hw(struct slgt_info *info) else async_mode(info); - set_signals(info); + set_gtsignals(info); info->dcd_chkcount = 0; info->cts_chkcount = 0; @@ -2491,7 +2426,7 @@ static void program_hw(struct slgt_info *info) info->dsr_chkcount = 0; slgt_irq_on(info, IRQ_DCD | IRQ_CTS | IRQ_DSR | IRQ_RI); - get_signals(info); + get_gtsignals(info); if (info->netcount || (info->port.tty && info->port.tty->termios.c_cflag & CREAD)) @@ -2523,14 +2458,7 @@ static void change_params(struct slgt_info *info) /* byte size and parity */ - switch (cflag & CSIZE) { - case CS5: info->params.data_bits = 5; break; - case CS6: info->params.data_bits = 6; break; - case CS7: info->params.data_bits = 7; break; - case CS8: info->params.data_bits = 8; break; - default: info->params.data_bits = 7; break; - } - + info->params.data_bits = tty_get_char_size(cflag); info->params.stop_bits = (cflag & CSTOPB) ? 2 : 1; if (cflag & PARENB) @@ -2735,7 +2663,7 @@ static int wait_mgsl_event(struct slgt_info *info, int __user *mask_ptr) spin_lock_irqsave(&info->lock,flags); /* return immediately if state matches requested events */ - get_signals(info); + get_gtsignals(info); s = info->signals; events = mask & @@ -3153,7 +3081,7 @@ static int tiocmget(struct tty_struct *tty) unsigned long flags; spin_lock_irqsave(&info->lock,flags); - get_signals(info); + get_gtsignals(info); spin_unlock_irqrestore(&info->lock,flags); result = ((info->signals & SerialSignal_RTS) ? TIOCM_RTS:0) + @@ -3192,7 +3120,7 @@ static int tiocmset(struct tty_struct *tty, info->signals &= ~SerialSignal_DTR; spin_lock_irqsave(&info->lock,flags); - set_signals(info); + set_gtsignals(info); spin_unlock_irqrestore(&info->lock,flags); return 0; } @@ -3203,7 +3131,7 @@ static int carrier_raised(struct tty_port *port) struct slgt_info *info = container_of(port, struct slgt_info, port); spin_lock_irqsave(&info->lock,flags); - get_signals(info); + get_gtsignals(info); spin_unlock_irqrestore(&info->lock,flags); return (info->signals & SerialSignal_DCD) ? 1 : 0; } @@ -3218,7 +3146,7 @@ static void dtr_rts(struct tty_port *port, int on) info->signals |= SerialSignal_RTS | SerialSignal_DTR; else info->signals &= ~(SerialSignal_RTS | SerialSignal_DTR); - set_signals(info); + set_gtsignals(info); spin_unlock_irqrestore(&info->lock,flags); } @@ -3341,8 +3269,8 @@ static int alloc_desc(struct slgt_info *info) unsigned int pbufs; /* allocate memory to hold descriptor lists */ - info->bufs = pci_zalloc_consistent(info->pdev, DESC_LIST_SIZE, - &info->bufs_dma_addr); + info->bufs = dma_alloc_coherent(&info->pdev->dev, DESC_LIST_SIZE, + &info->bufs_dma_addr, GFP_KERNEL); if (info->bufs == NULL) return -ENOMEM; @@ -3384,7 +3312,8 @@ static int alloc_desc(struct slgt_info *info) static void free_desc(struct slgt_info *info) { if (info->bufs != NULL) { - pci_free_consistent(info->pdev, DESC_LIST_SIZE, info->bufs, info->bufs_dma_addr); + dma_free_coherent(&info->pdev->dev, DESC_LIST_SIZE, + info->bufs, info->bufs_dma_addr); info->bufs = NULL; info->rbufs = NULL; info->tbufs = NULL; @@ -3395,7 +3324,9 @@ static int alloc_bufs(struct slgt_info *info, struct slgt_desc *bufs, int count) { int i; for (i=0; i < count; i++) { - if ((bufs[i].buf = pci_alloc_consistent(info->pdev, DMABUFSIZE, &bufs[i].buf_dma_addr)) == NULL) + bufs[i].buf = dma_alloc_coherent(&info->pdev->dev, DMABUFSIZE, + &bufs[i].buf_dma_addr, GFP_KERNEL); + if (!bufs[i].buf) return -ENOMEM; bufs[i].pbuf = cpu_to_le32((unsigned int)bufs[i].buf_dma_addr); } @@ -3408,7 +3339,8 @@ static void free_bufs(struct slgt_info *info, struct slgt_desc *bufs, int count) for (i=0; i < count; i++) { if (bufs[i].buf == NULL) continue; - pci_free_consistent(info->pdev, DMABUFSIZE, bufs[i].buf, bufs[i].buf_dma_addr); + dma_free_coherent(&info->pdev->dev, DMABUFSIZE, bufs[i].buf, + bufs[i].buf_dma_addr); bufs[i].buf = NULL; } } @@ -3560,13 +3492,10 @@ static struct slgt_info *alloc_dev(int adapter_num, int port_num, struct pci_dev } else { tty_port_init(&info->port); info->port.ops = &slgt_port_ops; - info->magic = MGSL_MAGIC; INIT_WORK(&info->task, bh_handler); info->max_frame_size = 4096; info->base_clock = 14745600; info->rbuf_fill_level = DMABUFSIZE; - info->port.close_delay = 5*HZ/10; - info->port.closing_wait = 30*HZ; init_waitqueue_head(&info->status_event_wait_q); init_waitqueue_head(&info->event_wait_q); spin_lock_init(&info->netlock); @@ -3704,7 +3633,6 @@ static const struct tty_operations ops = { static void slgt_cleanup(void) { - int rc; struct slgt_info *info; struct slgt_info *tmp; @@ -3713,10 +3641,8 @@ static void slgt_cleanup(void) if (serial_driver) { for (info=slgt_device_list ; info != NULL ; info=info->next_device) tty_unregister_device(serial_driver, info->line); - rc = tty_unregister_driver(serial_driver); - if (rc) - DBGERR(("tty_unregister_driver error=%d\n", rc)); - put_tty_driver(serial_driver); + tty_unregister_driver(serial_driver); + tty_driver_kref_put(serial_driver); } /* reset devices */ @@ -3755,10 +3681,11 @@ static int __init slgt_init(void) printk(KERN_INFO "%s\n", driver_name); - serial_driver = alloc_tty_driver(MAX_DEVICES); - if (!serial_driver) { + serial_driver = tty_alloc_driver(MAX_DEVICES, TTY_DRIVER_REAL_RAW | + TTY_DRIVER_DYNAMIC_DEV); + if (IS_ERR(serial_driver)) { printk("%s can't allocate tty driver\n", driver_name); - return -ENOMEM; + return PTR_ERR(serial_driver); } /* Initialize the tty_driver structure */ @@ -3774,11 +3701,10 @@ static int __init slgt_init(void) B9600 | CS8 | CREAD | HUPCL | CLOCAL; serial_driver->init_termios.c_ispeed = 9600; serial_driver->init_termios.c_ospeed = 9600; - serial_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV; tty_set_operations(serial_driver, &ops); if ((rc = tty_register_driver(serial_driver)) < 0) { DBGERR(("%s can't register serial driver\n", driver_name)); - put_tty_driver(serial_driver); + tty_driver_kref_put(serial_driver); serial_driver = NULL; goto error; } @@ -4017,10 +3943,10 @@ static void tx_start(struct slgt_info *info) if (info->params.mode != MGSL_MODE_ASYNC) { if (info->params.flags & HDLC_FLAG_AUTO_RTS) { - get_signals(info); + get_gtsignals(info); if (!(info->signals & SerialSignal_RTS)) { info->signals |= SerialSignal_RTS; - set_signals(info); + set_gtsignals(info); info->drop_rts_on_tx_done = true; } } @@ -4074,7 +4000,7 @@ static void reset_port(struct slgt_info *info) rx_stop(info); info->signals &= ~(SerialSignal_RTS | SerialSignal_DTR); - set_signals(info); + set_gtsignals(info); slgt_irq_off(info, IRQ_ALL | IRQ_MASTER); } @@ -4496,7 +4422,7 @@ static void tx_set_idle(struct slgt_info *info) /* * get state of V24 status (input) signals */ -static void get_signals(struct slgt_info *info) +static void get_gtsignals(struct slgt_info *info) { unsigned short status = rd_reg16(info, SSR); @@ -4558,7 +4484,7 @@ static void msc_set_vcr(struct slgt_info *info) /* * set state of V24 control (output) signals */ -static void set_signals(struct slgt_info *info) +static void set_gtsignals(struct slgt_info *info) { unsigned char val = rd_reg8(info, VCR); if (info->signals & SerialSignal_DTR) @@ -5017,7 +4943,7 @@ static int loopback_test(struct slgt_info *info) #define TESTFRAMESIZE 20 unsigned long timeout; - u16 count = TESTFRAMESIZE; + u16 count; unsigned char buf[TESTFRAMESIZE]; int rc = -ENODEV; unsigned long flags; |