X-Git-Url: http://pilppa.org/gitweb/?a=blobdiff_plain;f=drivers%2Fchar%2Fsynclink_gt.c;h=2c3e43bb2cc933184ea94cc6abd04a1b82c6b312;hb=db6d8c7a4027b48d797b369a53f8470aaeed7063;hp=d88a607e34b74af926b2045e1470591f2742a060;hpb=fb65a7c091529bfffb1262515252c0d0f6241c5c;p=linux-2.6-omap-h63xx.git diff --git a/drivers/char/synclink_gt.c b/drivers/char/synclink_gt.c index d88a607e34b..2c3e43bb2cc 100644 --- a/drivers/char/synclink_gt.c +++ b/drivers/char/synclink_gt.c @@ -244,11 +244,11 @@ struct _input_signal_events { */ struct slgt_info { void *if_ptr; /* General purpose pointer (used by SPPP) */ + struct tty_port port; struct slgt_info *next_device; /* device list link */ int magic; - int flags; char device_name[25]; struct pci_dev *pdev; @@ -260,23 +260,15 @@ struct slgt_info { /* array of pointers to port contexts on this adapter */ struct slgt_info *port_array[SLGT_MAX_PORTS]; - int count; /* count of opens */ int line; /* tty line instance number */ - unsigned short close_delay; - unsigned short closing_wait; /* time to wait before closing */ struct mgsl_icount icount; - struct tty_struct *tty; int timeout; int x_char; /* xon/xoff character */ - int blocked_open; /* # of blocked opens */ unsigned int read_status_mask; unsigned int ignore_status_mask; - wait_queue_head_t open_wait; - wait_queue_head_t close_wait; - wait_queue_head_t status_event_wait_q; wait_queue_head_t event_wait_q; struct timer_list tx_timer; @@ -641,8 +633,8 @@ static void ldisc_receive_buf(struct tty_struct *tty, return; ld = tty_ldisc_ref(tty); if (ld) { - if (ld->receive_buf) - ld->receive_buf(tty, data, flags, count); + if (ld->ops->receive_buf) + ld->ops->receive_buf(tty, data, flags, count); tty_ldisc_deref(ld); } } @@ -672,20 +664,20 @@ static int open(struct tty_struct *tty, struct file *filp) } tty->driver_data = info; - info->tty = tty; + info->port.tty = tty; - DBGINFO(("%s open, old ref count = %d\n", info->device_name, info->count)); + DBGINFO(("%s open, old ref count = %d\n", info->device_name, info->port.count)); /* If port is closing, signal caller to try again */ - if (tty_hung_up_p(filp) || info->flags & ASYNC_CLOSING){ - if (info->flags & ASYNC_CLOSING) - interruptible_sleep_on(&info->close_wait); - retval = ((info->flags & ASYNC_HUP_NOTIFY) ? + if (tty_hung_up_p(filp) || info->port.flags & ASYNC_CLOSING){ + if (info->port.flags & ASYNC_CLOSING) + interruptible_sleep_on(&info->port.close_wait); + retval = ((info->port.flags & ASYNC_HUP_NOTIFY) ? -EAGAIN : -ERESTARTSYS); goto cleanup; } - info->tty->low_latency = (info->flags & ASYNC_LOW_LATENCY) ? 1 : 0; + info->port.tty->low_latency = (info->port.flags & ASYNC_LOW_LATENCY) ? 1 : 0; spin_lock_irqsave(&info->netlock, flags); if (info->netcount) { @@ -693,10 +685,10 @@ static int open(struct tty_struct *tty, struct file *filp) spin_unlock_irqrestore(&info->netlock, flags); goto cleanup; } - info->count++; + info->port.count++; spin_unlock_irqrestore(&info->netlock, flags); - if (info->count == 1) { + if (info->port.count == 1) { /* 1st open on this device, init hardware */ retval = startup(info); if (retval < 0) @@ -714,9 +706,9 @@ static int open(struct tty_struct *tty, struct file *filp) cleanup: if (retval) { if (tty->count == 1) - info->tty = NULL; /* tty layer will release tty struct */ - if(info->count) - info->count--; + info->port.tty = NULL; /* tty layer will release tty struct */ + if(info->port.count) + info->port.count--; } DBGINFO(("%s open rc=%d\n", info->device_name, retval)); @@ -729,32 +721,32 @@ static void close(struct tty_struct *tty, struct file *filp) if (sanity_check(info, tty->name, "close")) return; - DBGINFO(("%s close entry, count=%d\n", info->device_name, info->count)); + DBGINFO(("%s close entry, count=%d\n", info->device_name, info->port.count)); - if (!info->count) + if (!info->port.count) return; if (tty_hung_up_p(filp)) goto cleanup; - if ((tty->count == 1) && (info->count != 1)) { + if ((tty->count == 1) && (info->port.count != 1)) { /* * tty->count is 1 and the tty structure will be freed. - * info->count should be one in this case. + * info->port.count should be one in this case. * if it's not, correct it so that the port is shutdown. */ DBGERR(("%s close: bad refcount; tty->count=1, " - "info->count=%d\n", info->device_name, info->count)); - info->count = 1; + "info->port.count=%d\n", info->device_name, info->port.count)); + info->port.count = 1; } - info->count--; + info->port.count--; /* if at least one open remaining, leave hardware active */ - if (info->count) + if (info->port.count) goto cleanup; - info->flags |= ASYNC_CLOSING; + info->port.flags |= ASYNC_CLOSING; /* set tty->closing to notify line discipline to * only process XON/XOFF characters. Only the N_TTY @@ -764,12 +756,12 @@ static void close(struct tty_struct *tty, struct file *filp) /* wait for transmit data to clear all layers */ - if (info->closing_wait != ASYNC_CLOSING_WAIT_NONE) { + if (info->port.closing_wait != ASYNC_CLOSING_WAIT_NONE) { DBGINFO(("%s call tty_wait_until_sent\n", info->device_name)); - tty_wait_until_sent(tty, info->closing_wait); + tty_wait_until_sent(tty, info->port.closing_wait); } - if (info->flags & ASYNC_INITIALIZED) + if (info->port.flags & ASYNC_INITIALIZED) wait_until_sent(tty, info->timeout); flush_buffer(tty); tty_ldisc_flush(tty); @@ -777,21 +769,21 @@ static void close(struct tty_struct *tty, struct file *filp) shutdown(info); tty->closing = 0; - info->tty = NULL; + info->port.tty = NULL; - if (info->blocked_open) { - if (info->close_delay) { - msleep_interruptible(jiffies_to_msecs(info->close_delay)); + if (info->port.blocked_open) { + if (info->port.close_delay) { + msleep_interruptible(jiffies_to_msecs(info->port.close_delay)); } - wake_up_interruptible(&info->open_wait); + wake_up_interruptible(&info->port.open_wait); } - info->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING); + info->port.flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING); - wake_up_interruptible(&info->close_wait); + wake_up_interruptible(&info->port.close_wait); cleanup: - DBGINFO(("%s close exit, count=%d\n", tty->driver->name, info->count)); + DBGINFO(("%s close exit, count=%d\n", tty->driver->name, info->port.count)); } static void hangup(struct tty_struct *tty) @@ -805,11 +797,11 @@ static void hangup(struct tty_struct *tty) flush_buffer(tty); shutdown(info); - info->count = 0; - info->flags &= ~ASYNC_NORMAL_ACTIVE; - info->tty = NULL; + info->port.count = 0; + info->port.flags &= ~ASYNC_NORMAL_ACTIVE; + info->port.tty = NULL; - wake_up_interruptible(&info->open_wait); + wake_up_interruptible(&info->port.open_wait); } static void set_termios(struct tty_struct *tty, struct ktermios *old_termios) @@ -959,7 +951,7 @@ static void wait_until_sent(struct tty_struct *tty, int timeout) if (sanity_check(info, tty->name, "wait_until_sent")) return; DBGINFO(("%s wait_until_sent entry\n", info->device_name)); - if (!(info->flags & ASYNC_INITIALIZED)) + if (!(info->port.flags & ASYNC_INITIALIZED)) goto exit; orig_jiffies = jiffies; @@ -1500,7 +1492,7 @@ static int hdlcdev_attach(struct net_device *dev, unsigned short encoding, unsigned short new_crctype; /* return error if TTY interface open */ - if (info->count) + if (info->port.count) return -EBUSY; DBGINFO(("%s hdlcdev_attach\n", info->device_name)); @@ -1599,7 +1591,7 @@ static int hdlcdev_open(struct net_device *dev) /* arbitrate between network and tty opens */ spin_lock_irqsave(&info->netlock, flags); - if (info->count != 0 || info->netcount != 0) { + if (info->port.count != 0 || info->netcount != 0) { DBGINFO(("%s hdlc_open busy\n", dev->name)); spin_unlock_irqrestore(&info->netlock, flags); return -EBUSY; @@ -1684,7 +1676,7 @@ static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) DBGINFO(("%s hdlcdev_ioctl\n", dev->name)); /* return error if TTY interface open */ - if (info->count) + if (info->port.count) return -EBUSY; if (cmd != SIOCWANDEV) @@ -1903,7 +1895,7 @@ static void hdlcdev_exit(struct slgt_info *info) */ static void rx_async(struct slgt_info *info) { - struct tty_struct *tty = info->tty; + struct tty_struct *tty = info->port.tty; struct mgsl_icount *icount = &info->icount; unsigned int start, end; unsigned char *p; @@ -2054,7 +2046,7 @@ static void bh_handler(struct work_struct *work) static void bh_transmit(struct slgt_info *info) { - struct tty_struct *tty = info->tty; + struct tty_struct *tty = info->port.tty; DBGBH(("%s bh_transmit\n", info->device_name)); if (tty) @@ -2100,17 +2092,17 @@ static void cts_change(struct slgt_info *info, unsigned short status) wake_up_interruptible(&info->event_wait_q); info->pending_bh |= BH_STATUS; - if (info->flags & ASYNC_CTS_FLOW) { - if (info->tty) { - if (info->tty->hw_stopped) { + if (info->port.flags & ASYNC_CTS_FLOW) { + if (info->port.tty) { + if (info->port.tty->hw_stopped) { if (info->signals & SerialSignal_CTS) { - info->tty->hw_stopped = 0; + info->port.tty->hw_stopped = 0; info->pending_bh |= BH_TRANSMIT; return; } } else { if (!(info->signals & SerialSignal_CTS)) - info->tty->hw_stopped = 1; + info->port.tty->hw_stopped = 1; } } } @@ -2143,12 +2135,12 @@ static void dcd_change(struct slgt_info *info, unsigned short status) wake_up_interruptible(&info->event_wait_q); info->pending_bh |= BH_STATUS; - if (info->flags & ASYNC_CHECK_CD) { + if (info->port.flags & ASYNC_CHECK_CD) { if (info->signals & SerialSignal_DCD) - wake_up_interruptible(&info->open_wait); + wake_up_interruptible(&info->port.open_wait); else { - if (info->tty) - tty_hangup(info->tty); + if (info->port.tty) + tty_hangup(info->port.tty); } } } @@ -2191,12 +2183,12 @@ static void isr_serial(struct slgt_info *info) if ((status & IRQ_RXBREAK) && (status & RXBREAK)) { info->icount.brk++; /* process break detection if tty control allows */ - if (info->tty) { + if (info->port.tty) { if (!(status & info->ignore_status_mask)) { if (info->read_status_mask & MASK_BREAK) { - tty_insert_flip_char(info->tty, 0, TTY_BREAK); - if (info->flags & ASYNC_SAK) - do_SAK(info->tty); + tty_insert_flip_char(info->port.tty, 0, TTY_BREAK); + if (info->port.flags & ASYNC_SAK) + do_SAK(info->port.tty); } } } @@ -2316,7 +2308,7 @@ static void isr_txeom(struct slgt_info *info, unsigned short status) else #endif { - if (info->tty && (info->tty->stopped || info->tty->hw_stopped)) { + if (info->port.tty && (info->port.tty->stopped || info->port.tty->hw_stopped)) { tx_stop(info); return; } @@ -2392,7 +2384,7 @@ static irqreturn_t slgt_interrupt(int dummy, void *dev_id) for(i=0; i < info->port_count ; i++) { struct slgt_info *port = info->port_array[i]; - if (port && (port->count || port->netcount) && + if (port && (port->port.count || port->netcount) && port->pending_bh && !port->bh_running && !port->bh_requested) { DBGISR(("%s bh queued\n", port->device_name)); @@ -2411,7 +2403,7 @@ static int startup(struct slgt_info *info) { DBGINFO(("%s startup\n", info->device_name)); - if (info->flags & ASYNC_INITIALIZED) + if (info->port.flags & ASYNC_INITIALIZED) return 0; if (!info->tx_buf) { @@ -2429,10 +2421,10 @@ static int startup(struct slgt_info *info) /* program hardware for current parameters */ change_params(info); - if (info->tty) - clear_bit(TTY_IO_ERROR, &info->tty->flags); + if (info->port.tty) + clear_bit(TTY_IO_ERROR, &info->port.tty->flags); - info->flags |= ASYNC_INITIALIZED; + info->port.flags |= ASYNC_INITIALIZED; return 0; } @@ -2444,7 +2436,7 @@ static void shutdown(struct slgt_info *info) { unsigned long flags; - if (!(info->flags & ASYNC_INITIALIZED)) + if (!(info->port.flags & ASYNC_INITIALIZED)) return; DBGINFO(("%s shutdown\n", info->device_name)); @@ -2467,7 +2459,7 @@ static void shutdown(struct slgt_info *info) slgt_irq_off(info, IRQ_ALL | IRQ_MASTER); - if (!info->tty || info->tty->termios->c_cflag & HUPCL) { + if (!info->port.tty || info->port.tty->termios->c_cflag & HUPCL) { info->signals &= ~(SerialSignal_DTR + SerialSignal_RTS); set_signals(info); } @@ -2476,10 +2468,10 @@ static void shutdown(struct slgt_info *info) spin_unlock_irqrestore(&info->lock,flags); - if (info->tty) - set_bit(TTY_IO_ERROR, &info->tty->flags); + if (info->port.tty) + set_bit(TTY_IO_ERROR, &info->port.tty->flags); - info->flags &= ~ASYNC_INITIALIZED; + info->port.flags &= ~ASYNC_INITIALIZED; } static void program_hw(struct slgt_info *info) @@ -2508,7 +2500,7 @@ static void program_hw(struct slgt_info *info) get_signals(info); if (info->netcount || - (info->tty && info->tty->termios->c_cflag & CREAD)) + (info->port.tty && info->port.tty->termios->c_cflag & CREAD)) rx_start(info); spin_unlock_irqrestore(&info->lock,flags); @@ -2522,11 +2514,11 @@ static void change_params(struct slgt_info *info) unsigned cflag; int bits_per_char; - if (!info->tty || !info->tty->termios) + if (!info->port.tty || !info->port.tty->termios) return; DBGINFO(("%s change_params\n", info->device_name)); - cflag = info->tty->termios->c_cflag; + cflag = info->port.tty->termios->c_cflag; /* if B0 rate (hangup) specified then negate DTR and RTS */ /* otherwise assert DTR and RTS */ @@ -2558,7 +2550,7 @@ static void change_params(struct slgt_info *info) bits_per_char = info->params.data_bits + info->params.stop_bits + 1; - info->params.data_rate = tty_get_baud_rate(info->tty); + info->params.data_rate = tty_get_baud_rate(info->port.tty); if (info->params.data_rate) { info->timeout = (32*HZ*bits_per_char) / @@ -2567,30 +2559,30 @@ static void change_params(struct slgt_info *info) info->timeout += HZ/50; /* Add .02 seconds of slop */ if (cflag & CRTSCTS) - info->flags |= ASYNC_CTS_FLOW; + info->port.flags |= ASYNC_CTS_FLOW; else - info->flags &= ~ASYNC_CTS_FLOW; + info->port.flags &= ~ASYNC_CTS_FLOW; if (cflag & CLOCAL) - info->flags &= ~ASYNC_CHECK_CD; + info->port.flags &= ~ASYNC_CHECK_CD; else - info->flags |= ASYNC_CHECK_CD; + info->port.flags |= ASYNC_CHECK_CD; /* process tty input control flags */ info->read_status_mask = IRQ_RXOVER; - if (I_INPCK(info->tty)) + if (I_INPCK(info->port.tty)) info->read_status_mask |= MASK_PARITY | MASK_FRAMING; - if (I_BRKINT(info->tty) || I_PARMRK(info->tty)) + if (I_BRKINT(info->port.tty) || I_PARMRK(info->port.tty)) info->read_status_mask |= MASK_BREAK; - if (I_IGNPAR(info->tty)) + if (I_IGNPAR(info->port.tty)) info->ignore_status_mask |= MASK_PARITY | MASK_FRAMING; - if (I_IGNBRK(info->tty)) { + if (I_IGNBRK(info->port.tty)) { info->ignore_status_mask |= MASK_BREAK; /* If ignoring parity and break indicators, ignore * overruns too. (For real raw support). */ - if (I_IGNPAR(info->tty)) + if (I_IGNPAR(info->port.tty)) info->ignore_status_mask |= MASK_OVERRUN; } @@ -3141,7 +3133,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp, if (filp->f_flags & O_NONBLOCK || tty->flags & (1 << TTY_IO_ERROR)){ /* nonblock mode is set or port is not enabled */ - info->flags |= ASYNC_NORMAL_ACTIVE; + info->port.flags |= ASYNC_NORMAL_ACTIVE; return 0; } @@ -3150,21 +3142,21 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp, /* Wait for carrier detect and the line to become * free (i.e., not in use by the callout). While we are in - * this loop, info->count is dropped by one, so that + * this loop, info->port.count is dropped by one, so that * close() knows when to free things. We restore it upon * exit, either normal or abnormal. */ retval = 0; - add_wait_queue(&info->open_wait, &wait); + add_wait_queue(&info->port.open_wait, &wait); spin_lock_irqsave(&info->lock, flags); if (!tty_hung_up_p(filp)) { extra_count = true; - info->count--; + info->port.count--; } spin_unlock_irqrestore(&info->lock, flags); - info->blocked_open++; + info->port.blocked_open++; while (1) { if ((tty->termios->c_cflag & CBAUD)) { @@ -3176,8 +3168,8 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp, set_current_state(TASK_INTERRUPTIBLE); - if (tty_hung_up_p(filp) || !(info->flags & ASYNC_INITIALIZED)){ - retval = (info->flags & ASYNC_HUP_NOTIFY) ? + if (tty_hung_up_p(filp) || !(info->port.flags & ASYNC_INITIALIZED)){ + retval = (info->port.flags & ASYNC_HUP_NOTIFY) ? -EAGAIN : -ERESTARTSYS; break; } @@ -3186,7 +3178,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp, get_signals(info); spin_unlock_irqrestore(&info->lock,flags); - if (!(info->flags & ASYNC_CLOSING) && + if (!(info->port.flags & ASYNC_CLOSING) && (do_clocal || (info->signals & SerialSignal_DCD)) ) { break; } @@ -3201,14 +3193,14 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp, } set_current_state(TASK_RUNNING); - remove_wait_queue(&info->open_wait, &wait); + remove_wait_queue(&info->port.open_wait, &wait); if (extra_count) - info->count++; - info->blocked_open--; + info->port.count++; + info->port.blocked_open--; if (!retval) - info->flags |= ASYNC_NORMAL_ACTIVE; + info->port.flags |= ASYNC_NORMAL_ACTIVE; DBGINFO(("%s block_til_ready ready, rc=%d\n", tty->driver->name, retval)); return retval; @@ -3451,14 +3443,13 @@ static struct slgt_info *alloc_dev(int adapter_num, int port_num, struct pci_dev DBGERR(("%s device alloc failed adapter=%d port=%d\n", driver_name, adapter_num, port_num)); } else { + tty_port_init(&info->port); info->magic = MGSL_MAGIC; INIT_WORK(&info->task, bh_handler); info->max_frame_size = 4096; info->raw_rx_size = DMABUFSIZE; - info->close_delay = 5*HZ/10; - info->closing_wait = 30*HZ; - init_waitqueue_head(&info->open_wait); - init_waitqueue_head(&info->close_wait); + 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); @@ -4502,7 +4493,7 @@ static bool rx_get_frame(struct slgt_info *info) unsigned short status; unsigned int framesize = 0; unsigned long flags; - struct tty_struct *tty = info->tty; + struct tty_struct *tty = info->port.tty; unsigned char addr_field = 0xff; unsigned int crc_size = 0; @@ -4652,7 +4643,7 @@ static bool rx_get_buf(struct slgt_info *info) DBGDATA(info, info->rbufs[i].buf, count, "rx"); DBGINFO(("rx_get_buf size=%d\n", count)); if (count) - ldisc_receive_buf(info->tty, info->rbufs[i].buf, + ldisc_receive_buf(info->port.tty, info->rbufs[i].buf, info->flag_buf, count); free_rbufs(info, i, i); return true; @@ -4761,11 +4752,11 @@ static int irq_test(struct slgt_info *info) { unsigned long timeout; unsigned long flags; - struct tty_struct *oldtty = info->tty; + struct tty_struct *oldtty = info->port.tty; u32 speed = info->params.data_rate; info->params.data_rate = 921600; - info->tty = NULL; + info->port.tty = NULL; spin_lock_irqsave(&info->lock, flags); async_mode(info); @@ -4793,7 +4784,7 @@ static int irq_test(struct slgt_info *info) spin_unlock_irqrestore(&info->lock,flags); info->params.data_rate = speed; - info->tty = oldtty; + info->port.tty = oldtty; info->init_error = info->irq_occurred ? 0 : DiagStatus_IrqFailure; return info->irq_occurred ? 0 : -ENODEV; @@ -4833,7 +4824,7 @@ static int loopback_test(struct slgt_info *info) int rc = -ENODEV; unsigned long flags; - struct tty_struct *oldtty = info->tty; + struct tty_struct *oldtty = info->port.tty; MGSL_PARAMS params; memcpy(¶ms, &info->params, sizeof(params)); @@ -4841,7 +4832,7 @@ static int loopback_test(struct slgt_info *info) info->params.mode = MGSL_MODE_ASYNC; info->params.data_rate = 921600; info->params.loopback = 1; - info->tty = NULL; + info->port.tty = NULL; /* build and send transmit frame */ for (count = 0; count < TESTFRAMESIZE; ++count) @@ -4879,7 +4870,7 @@ static int loopback_test(struct slgt_info *info) spin_unlock_irqrestore(&info->lock,flags); memcpy(&info->params, ¶ms, sizeof(info->params)); - info->tty = oldtty; + info->port.tty = oldtty; info->init_error = rc ? DiagStatus_DmaFailure : 0; return rc;