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Subject[PATCH 09/20] synclink: use tty_port
Date
From: Alan Cox <alan@redhat.com>

Switch the synclink ports to use the new tty_port structure
---
drivers/char/synclink.c | 195 ++++++++++++++++++++----------------------
drivers/char/synclink_gt.c | 201 +++++++++++++++++++++-----------------------
drivers/char/synclinkmp.c | 203 +++++++++++++++++++++-----------------------
3 files changed, 289 insertions(+), 310 deletions(-)

diff --git a/drivers/char/synclink.c b/drivers/char/synclink.c
index ac5080d..0678f61 100644
--- a/drivers/char/synclink.c
+++ b/drivers/char/synclink.c
@@ -180,8 +180,7 @@ struct tx_holding_buffer {

struct mgsl_struct {
int magic;
- int flags;
- int count; /* count of opens */
+ struct tty_port port;
int line;
int hw_version;
unsigned short close_delay;
@@ -189,10 +188,8 @@ struct mgsl_struct {

struct mgsl_icount icount;

- struct tty_struct *tty;
int timeout;
int x_char; /* xon/xoff character */
- int blocked_open; /* # of blocked opens */
u16 read_status_mask;
u16 ignore_status_mask;
unsigned char *xmit_buf;
@@ -200,9 +197,6 @@ struct mgsl_struct {
int xmit_tail;
int xmit_cnt;

- 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; /* HDLC transmit timeout timer */
@@ -1134,7 +1128,7 @@ static void mgsl_bh_receive(struct mgsl_struct *info)

static void mgsl_bh_transmit(struct mgsl_struct *info)
{
- struct tty_struct *tty = info->tty;
+ struct tty_struct *tty = info->port.tty;
unsigned long flags;

if ( debug_level >= DEBUG_LEVEL_BH )
@@ -1276,7 +1270,7 @@ static void mgsl_isr_transmit_status( struct mgsl_struct *info )
else
#endif
{
- if (info->tty->stopped || info->tty->hw_stopped) {
+ if (info->port.tty->stopped || info->port.tty->hw_stopped) {
usc_stop_transmitter(info);
return;
}
@@ -1357,29 +1351,29 @@ static void mgsl_isr_io_pin( struct mgsl_struct *info )
wake_up_interruptible(&info->status_event_wait_q);
wake_up_interruptible(&info->event_wait_q);

- if ( (info->flags & ASYNC_CHECK_CD) &&
+ if ( (info->port.flags & ASYNC_CHECK_CD) &&
(status & MISCSTATUS_DCD_LATCHED) ) {
if ( debug_level >= DEBUG_LEVEL_ISR )
printk("%s CD now %s...", info->device_name,
(status & MISCSTATUS_DCD) ? "on" : "off");
if (status & MISCSTATUS_DCD)
- wake_up_interruptible(&info->open_wait);
+ wake_up_interruptible(&info->port.open_wait);
else {
if ( debug_level >= DEBUG_LEVEL_ISR )
printk("doing serial hangup...");
- if (info->tty)
- tty_hangup(info->tty);
+ if (info->port.tty)
+ tty_hangup(info->port.tty);
}
}

- if ( (info->flags & ASYNC_CTS_FLOW) &&
+ if ( (info->port.flags & ASYNC_CTS_FLOW) &&
(status & MISCSTATUS_CTS_LATCHED) ) {
- if (info->tty->hw_stopped) {
+ if (info->port.tty->hw_stopped) {
if (status & MISCSTATUS_CTS) {
if ( debug_level >= DEBUG_LEVEL_ISR )
printk("CTS tx start...");
- if (info->tty)
- info->tty->hw_stopped = 0;
+ if (info->port.tty)
+ info->port.tty->hw_stopped = 0;
usc_start_transmitter(info);
info->pending_bh |= BH_TRANSMIT;
return;
@@ -1388,8 +1382,8 @@ static void mgsl_isr_io_pin( struct mgsl_struct *info )
if (!(status & MISCSTATUS_CTS)) {
if ( debug_level >= DEBUG_LEVEL_ISR )
printk("CTS tx stop...");
- if (info->tty)
- info->tty->hw_stopped = 1;
+ if (info->port.tty)
+ info->port.tty->hw_stopped = 1;
usc_stop_transmitter(info);
}
}
@@ -1423,7 +1417,7 @@ static void mgsl_isr_transmit_data( struct mgsl_struct *info )

usc_ClearIrqPendingBits( info, TRANSMIT_DATA );

- if (info->tty->stopped || info->tty->hw_stopped) {
+ if (info->port.tty->stopped || info->port.tty->hw_stopped) {
usc_stop_transmitter(info);
return;
}
@@ -1453,7 +1447,7 @@ static void mgsl_isr_receive_data( struct mgsl_struct *info )
u16 status;
int work = 0;
unsigned char DataByte;
- struct tty_struct *tty = info->tty;
+ struct tty_struct *tty = info->port.tty;
struct mgsl_icount *icount = &info->icount;

if ( debug_level >= DEBUG_LEVEL_ISR )
@@ -1514,7 +1508,7 @@ static void mgsl_isr_receive_data( struct mgsl_struct *info )

if (status & RXSTATUS_BREAK_RECEIVED) {
flag = TTY_BREAK;
- if (info->flags & ASYNC_SAK)
+ if (info->port.flags & ASYNC_SAK)
do_SAK(tty);
} else if (status & RXSTATUS_PARITY_ERROR)
flag = TTY_PARITY;
@@ -1771,7 +1765,7 @@ static int startup(struct mgsl_struct * info)
if ( debug_level >= DEBUG_LEVEL_INFO )
printk("%s(%d):mgsl_startup(%s)\n",__FILE__,__LINE__,info->device_name);

- if (info->flags & ASYNC_INITIALIZED)
+ if (info->port.flags & ASYNC_INITIALIZED)
return 0;

if (!info->xmit_buf) {
@@ -1798,8 +1792,8 @@ static int startup(struct mgsl_struct * info)
retval = mgsl_adapter_test(info);

if ( retval ) {
- if (capable(CAP_SYS_ADMIN) && info->tty)
- set_bit(TTY_IO_ERROR, &info->tty->flags);
+ if (capable(CAP_SYS_ADMIN) && info->port.tty)
+ set_bit(TTY_IO_ERROR, &info->port.tty->flags);
mgsl_release_resources(info);
return retval;
}
@@ -1807,10 +1801,10 @@ static int startup(struct mgsl_struct * info)
/* program hardware for current parameters */
mgsl_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;

@@ -1827,7 +1821,7 @@ static void shutdown(struct mgsl_struct * info)
{
unsigned long flags;

- if (!(info->flags & ASYNC_INITIALIZED))
+ if (!(info->port.flags & ASYNC_INITIALIZED))
return;

if (debug_level >= DEBUG_LEVEL_INFO)
@@ -1864,7 +1858,7 @@ static void shutdown(struct mgsl_struct * info)
/* on the ISA adapter. This has no effect for the PCI adapter */
usc_OutReg(info, PCR, (u16)((usc_InReg(info, PCR) | BIT13) | BIT12));

- if (!info->tty || info->tty->termios->c_cflag & HUPCL) {
+ if (!info->port.tty || info->port.tty->termios->c_cflag & HUPCL) {
info->serial_signals &= ~(SerialSignal_DTR + SerialSignal_RTS);
usc_set_serial_signals(info);
}
@@ -1873,10 +1867,10 @@ static void shutdown(struct mgsl_struct * info)

mgsl_release_resources(info);

- 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;

} /* end of shutdown() */

@@ -1908,7 +1902,7 @@ static void mgsl_program_hw(struct mgsl_struct *info)
usc_EnableInterrupts(info, IO_PIN);
usc_get_serial_signals(info);

- if (info->netcount || info->tty->termios->c_cflag & CREAD)
+ if (info->netcount || info->port.tty->termios->c_cflag & CREAD)
usc_start_receiver(info);

spin_unlock_irqrestore(&info->irq_spinlock,flags);
@@ -1921,14 +1915,14 @@ static void mgsl_change_params(struct mgsl_struct *info)
unsigned cflag;
int bits_per_char;

- if (!info->tty || !info->tty->termios)
+ if (!info->port.tty || !info->port.tty->termios)
return;

if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):mgsl_change_params(%s)\n",
__FILE__,__LINE__, 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 */
@@ -1976,7 +1970,7 @@ static void mgsl_change_params(struct mgsl_struct *info)
* current data rate.
*/
if (info->params.data_rate <= 460800)
- 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) /
@@ -1985,31 +1979,31 @@ static void mgsl_change_params(struct mgsl_struct *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 = RXSTATUS_OVERRUN;
- if (I_INPCK(info->tty))
+ if (I_INPCK(info->port.tty))
info->read_status_mask |= RXSTATUS_PARITY_ERROR | RXSTATUS_FRAMING_ERROR;
- if (I_BRKINT(info->tty) || I_PARMRK(info->tty))
+ if (I_BRKINT(info->port.tty) || I_PARMRK(info->port.tty))
info->read_status_mask |= RXSTATUS_BREAK_RECEIVED;

- if (I_IGNPAR(info->tty))
+ if (I_IGNPAR(info->port.tty))
info->ignore_status_mask |= RXSTATUS_PARITY_ERROR | RXSTATUS_FRAMING_ERROR;
- if (I_IGNBRK(info->tty)) {
+ if (I_IGNBRK(info->port.tty)) {
info->ignore_status_mask |= RXSTATUS_BREAK_RECEIVED;
/* 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 |= RXSTATUS_OVERRUN;
}

@@ -3113,32 +3107,32 @@ static void mgsl_close(struct tty_struct *tty, struct file * filp)

if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):mgsl_close(%s) entry, count=%d\n",
- __FILE__,__LINE__, info->device_name, info->count);
+ __FILE__,__LINE__, 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.
*/
printk("mgsl_close: bad refcount; tty->count is 1, "
- "info->count is %d\n", info->count);
- info->count = 1;
+ "info->port.count is %d\n", 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
@@ -3155,7 +3149,7 @@ static void mgsl_close(struct tty_struct *tty, struct file * filp)
tty_wait_until_sent(tty, info->closing_wait);
}

- if (info->flags & ASYNC_INITIALIZED)
+ if (info->port.flags & ASYNC_INITIALIZED)
mgsl_wait_until_sent(tty, info->timeout);

mgsl_flush_buffer(tty);
@@ -3165,23 +3159,23 @@ static void mgsl_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->port.blocked_open) {
if (info->close_delay) {
msleep_interruptible(jiffies_to_msecs(info->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:
if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):mgsl_close(%s) exit, count=%d\n", __FILE__,__LINE__,
- tty->driver->name, info->count);
+ tty->driver->name, info->port.count);

} /* end of mgsl_close() */

@@ -3211,7 +3205,7 @@ static void mgsl_wait_until_sent(struct tty_struct *tty, int timeout)
if (mgsl_paranoia_check(info, tty->name, "mgsl_wait_until_sent"))
return;

- if (!(info->flags & ASYNC_INITIALIZED))
+ if (!(info->port.flags & ASYNC_INITIALIZED))
goto exit;

orig_jiffies = jiffies;
@@ -3283,11 +3277,11 @@ static void mgsl_hangup(struct tty_struct *tty)
mgsl_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);

} /* end of mgsl_hangup() */

@@ -3319,7 +3313,7 @@ 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;
}

@@ -3328,25 +3322,25 @@ 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
* mgsl_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);

if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):block_til_ready before block on %s count=%d\n",
- __FILE__,__LINE__, tty->driver->name, info->count );
+ __FILE__,__LINE__, tty->driver->name, info->port.count );

spin_lock_irqsave(&info->irq_spinlock, flags);
if (!tty_hung_up_p(filp)) {
extra_count = true;
- info->count--;
+ info->port.count--;
}
spin_unlock_irqrestore(&info->irq_spinlock, flags);
- info->blocked_open++;
+ info->port.blocked_open++;

while (1) {
if (tty->termios->c_cflag & CBAUD) {
@@ -3358,8 +3352,8 @@ 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;
}
@@ -3368,7 +3362,7 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
usc_get_serial_signals(info);
spin_unlock_irqrestore(&info->irq_spinlock,flags);

- if (!(info->flags & ASYNC_CLOSING) &&
+ if (!(info->port.flags & ASYNC_CLOSING) &&
(do_clocal || (info->serial_signals & SerialSignal_DCD)) ) {
break;
}
@@ -3380,24 +3374,24 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,

if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):block_til_ready blocking on %s count=%d\n",
- __FILE__,__LINE__, tty->driver->name, info->count );
+ __FILE__,__LINE__, tty->driver->name, info->port.count );

schedule();
}

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 (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):block_til_ready after blocking on %s count=%d\n",
- __FILE__,__LINE__, tty->driver->name, info->count );
+ __FILE__,__LINE__, tty->driver->name, info->port.count );

if (!retval)
- info->flags |= ASYNC_NORMAL_ACTIVE;
+ info->port.flags |= ASYNC_NORMAL_ACTIVE;

return retval;

@@ -3435,22 +3429,22 @@ static int mgsl_open(struct tty_struct *tty, struct file * filp)
return -ENODEV;

tty->driver_data = info;
- info->tty = tty;
+ info->port.tty = tty;

if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):mgsl_open(%s), old ref count = %d\n",
- __FILE__,__LINE__,tty->driver->name, info->count);
+ __FILE__,__LINE__,tty->driver->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) {
@@ -3458,10 +3452,10 @@ static int mgsl_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)
@@ -3484,9 +3478,9 @@ static int mgsl_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--;
}

return retval;
@@ -4337,8 +4331,7 @@ static struct mgsl_struct* mgsl_allocate_device(void)
info->max_frame_size = 4096;
info->close_delay = 5*HZ/10;
info->closing_wait = 30*HZ;
- init_waitqueue_head(&info->open_wait);
- init_waitqueue_head(&info->close_wait);
+ tty_port_init(&info->port);
init_waitqueue_head(&info->status_event_wait_q);
init_waitqueue_head(&info->event_wait_q);
spin_lock_init(&info->irq_spinlock);
@@ -6575,7 +6568,7 @@ static bool mgsl_get_rx_frame(struct mgsl_struct *info)
unsigned int framesize = 0;
bool ReturnCode = false;
unsigned long flags;
- struct tty_struct *tty = info->tty;
+ struct tty_struct *tty = info->port.tty;
bool return_frame = false;

/*
@@ -6774,7 +6767,7 @@ static bool mgsl_get_raw_rx_frame(struct mgsl_struct *info)
unsigned int framesize = 0;
bool ReturnCode = false;
unsigned long flags;
- struct tty_struct *tty = info->tty;
+ struct tty_struct *tty = info->port.tty;

/*
* current_rx_buffer points to the 1st buffer of the next available
@@ -7711,7 +7704,7 @@ 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;

switch (encoding)
@@ -7808,7 +7801,7 @@ 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) {
printk(KERN_WARNING "%s: hdlc_open returning busy\n", dev->name);
spin_unlock_irqrestore(&info->netlock, flags);
return -EBUSY;
@@ -7894,7 +7887,7 @@ static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
printk("%s:hdlcdev_ioctl(%s)\n",__FILE__,dev->name);

/* return error if TTY interface open */
- if (info->count)
+ if (info->port.count)
return -EBUSY;

if (cmd != SIOCWANDEV)
diff --git a/drivers/char/synclink_gt.c b/drivers/char/synclink_gt.c
index 2001b0e..220eb04 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 +260,17 @@ 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;
@@ -672,20 +666,20 @@ 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 +687,10 @@ 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 +708,9 @@ 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 +723,32 @@ 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
@@ -769,7 +763,7 @@ static void close(struct tty_struct *tty, struct file *filp)
tty_wait_until_sent(tty, info->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 +771,21 @@ 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->port.blocked_open) {
if (info->close_delay) {
msleep_interruptible(jiffies_to_msecs(info->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 +799,11 @@ 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 +953,7 @@ 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 +1494,7 @@ 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));
@@ -1600,7 +1594,7 @@ 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;
@@ -1685,7 +1679,7 @@ 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)
@@ -1906,7 +1900,7 @@ 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;
@@ -2057,7 +2051,7 @@ 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)
@@ -2103,17 +2097,17 @@ 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;
}
}
}
@@ -2146,12 +2140,12 @@ 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);
}
}
}
@@ -2194,12 +2188,12 @@ 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);
}
}
}
@@ -2319,7 +2313,7 @@ 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;
}
@@ -2395,7 +2389,7 @@ 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));
@@ -2414,7 +2408,7 @@ 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) {
@@ -2432,10 +2426,10 @@ 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;
}
@@ -2447,7 +2441,7 @@ 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));
@@ -2470,7 +2464,7 @@ 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);
}
@@ -2479,10 +2473,10 @@ 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)
@@ -2511,7 +2505,7 @@ 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);
@@ -2525,11 +2519,11 @@ 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 */
@@ -2561,7 +2555,7 @@ 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) /
@@ -2570,30 +2564,30 @@ 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;
}

@@ -3144,7 +3138,7 @@ 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;
}

@@ -3153,21 +3147,21 @@ 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)) {
@@ -3179,8 +3173,8 @@ 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;
}
@@ -3189,7 +3183,7 @@ 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;
}
@@ -3204,14 +3198,14 @@ 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;
@@ -3460,8 +3454,7 @@ static struct slgt_info *alloc_dev(int adapter_num, int port_num, struct pci_dev
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);
+ tty_port_init(&info->port);
init_waitqueue_head(&info->status_event_wait_q);
init_waitqueue_head(&info->event_wait_q);
spin_lock_init(&info->netlock);
@@ -4505,7 +4498,7 @@ 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;

@@ -4656,7 +4649,7 @@ 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;
@@ -4765,11 +4758,11 @@ 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);
@@ -4797,7 +4790,7 @@ 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;
@@ -4837,7 +4830,7 @@ 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(&params, &info->params, sizeof(params));
@@ -4845,7 +4838,7 @@ 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)
@@ -4883,7 +4876,7 @@ static int loopback_test(struct slgt_info *info)
spin_unlock_irqrestore(&info->lock,flags);

memcpy(&info->params, &params, sizeof(info->params));
- info->tty = oldtty;
+ info->port.tty = oldtty;

info->init_error = rc ? DiagStatus_DmaFailure : 0;
return rc;
diff --git a/drivers/char/synclinkmp.c b/drivers/char/synclinkmp.c
index bec5486..5952925 100644
--- a/drivers/char/synclinkmp.c
+++ b/drivers/char/synclinkmp.c
@@ -151,18 +151,15 @@ struct _input_signal_events {
typedef struct _synclinkmp_info {
void *if_ptr; /* General purpose pointer (used by SPPP) */
int magic;
- int flags;
- int count; /* count of opens */
+ struct tty_port port;
int line;
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 */
u16 read_status_mask1; /* break detection (SR1 indications) */
u16 read_status_mask2; /* parity/framing/overun (SR2 indications) */
unsigned char ignore_status_mask1; /* break detection (SR1 indications) */
@@ -172,9 +169,6 @@ typedef struct _synclinkmp_info {
int tx_get;
int tx_count;

- 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; /* HDLC transmit timeout timer */
@@ -462,13 +456,13 @@ static int synclinkmp_device_count = 0;
* .text section address and breakpoint on module load.
* This is useful for use with gdb and add-symbol-file command.
*/
-static int break_on_load=0;
+static int break_on_load = 0;

/*
* Driver major number, defaults to zero to get auto
* assigned major number. May be forced as module parameter.
*/
-static int ttymajor=0;
+static int ttymajor = 0;

/*
* Array of user specified options for ISA adapters.
@@ -747,22 +741,22 @@ static int open(struct tty_struct *tty, struct file *filp)
}

tty->driver_data = info;
- info->tty = tty;
+ info->port.tty = tty;

if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):%s open(), old ref count = %d\n",
- __FILE__,__LINE__,tty->driver->name, info->count);
+ __FILE__,__LINE__,tty->driver->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) {
@@ -770,10 +764,10 @@ 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)
@@ -796,9 +790,9 @@ 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--;
}

return retval;
@@ -816,33 +810,33 @@ static void close(struct tty_struct *tty, struct file *filp)

if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):%s close() entry, count=%d\n",
- __FILE__,__LINE__, info->device_name, info->count);
+ __FILE__,__LINE__, 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.
*/
printk("%s(%d):%s close: bad refcount; tty->count is 1, "
- "info->count is %d\n",
- __FILE__,__LINE__, info->device_name, info->count);
- info->count = 1;
+ "info->port.count is %d\n",
+ __FILE__,__LINE__, 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
@@ -859,7 +853,7 @@ static void close(struct tty_struct *tty, struct file *filp)
tty_wait_until_sent(tty, info->closing_wait);
}

- if (info->flags & ASYNC_INITIALIZED)
+ if (info->port.flags & ASYNC_INITIALIZED)
wait_until_sent(tty, info->timeout);

flush_buffer(tty);
@@ -869,23 +863,23 @@ 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->port.blocked_open) {
if (info->close_delay) {
msleep_interruptible(jiffies_to_msecs(info->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:
if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):%s close() exit, count=%d\n", __FILE__,__LINE__,
- tty->driver->name, info->count);
+ tty->driver->name, info->port.count);
}

/* Called by tty_hangup() when a hangup is signaled.
@@ -905,11 +899,11 @@ 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);
}

/* Set new termios settings
@@ -1123,7 +1117,7 @@ static void wait_until_sent(struct tty_struct *tty, int timeout)

lock_kernel();

- if (!(info->flags & ASYNC_INITIALIZED))
+ if (!(info->port.flags & ASYNC_INITIALIZED))
goto exit;

orig_jiffies = jiffies;
@@ -1636,7 +1630,7 @@ 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;

switch (encoding)
@@ -1733,7 +1727,7 @@ 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) {
printk(KERN_WARNING "%s: hdlc_open returning busy\n", dev->name);
spin_unlock_irqrestore(&info->netlock, flags);
return -EBUSY;
@@ -1819,7 +1813,7 @@ static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
printk("%s:hdlcdev_ioctl(%s)\n",__FILE__,dev->name);

/* return error if TTY interface open */
- if (info->count)
+ if (info->port.count)
return -EBUSY;

if (cmd != SIOCWANDEV)
@@ -2128,7 +2122,7 @@ static void bh_receive(SLMP_INFO *info)

static void bh_transmit(SLMP_INFO *info)
{
- struct tty_struct *tty = info->tty;
+ struct tty_struct *tty = info->port.tty;

if ( debug_level >= DEBUG_LEVEL_BH )
printk( "%s(%d):%s bh_transmit() entry\n",
@@ -2178,7 +2172,7 @@ static void isr_timer(SLMP_INFO * info)

static void isr_rxint(SLMP_INFO * info)
{
- struct tty_struct *tty = info->tty;
+ struct tty_struct *tty = info->port.tty;
struct mgsl_icount *icount = &info->icount;
unsigned char status = read_reg(info, SR1) & info->ie1_value & (FLGD + IDLD + CDCD + BRKD);
unsigned char status2 = read_reg(info, SR2) & info->ie2_value & OVRN;
@@ -2205,7 +2199,7 @@ static void isr_rxint(SLMP_INFO * info)
if (!(status & info->ignore_status_mask1)) {
if (info->read_status_mask1 & BRKD) {
tty_insert_flip_char(tty, 0, TTY_BREAK);
- if (info->flags & ASYNC_SAK)
+ if (info->port.flags & ASYNC_SAK)
do_SAK(tty);
}
}
@@ -2239,7 +2233,7 @@ static void isr_rxrdy(SLMP_INFO * info)
{
u16 status;
unsigned char DataByte;
- struct tty_struct *tty = info->tty;
+ struct tty_struct *tty = info->port.tty;
struct mgsl_icount *icount = &info->icount;

if ( debug_level >= DEBUG_LEVEL_ISR )
@@ -2352,7 +2346,7 @@ static void isr_txeom(SLMP_INFO * info, unsigned char 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;
}
@@ -2407,7 +2401,7 @@ static void isr_txrdy(SLMP_INFO * info)
return;
}

- 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;
}
@@ -2554,29 +2548,29 @@ static void isr_io_pin( SLMP_INFO *info, u16 status )
wake_up_interruptible(&info->status_event_wait_q);
wake_up_interruptible(&info->event_wait_q);

- if ( (info->flags & ASYNC_CHECK_CD) &&
+ if ( (info->port.flags & ASYNC_CHECK_CD) &&
(status & MISCSTATUS_DCD_LATCHED) ) {
if ( debug_level >= DEBUG_LEVEL_ISR )
printk("%s CD now %s...", info->device_name,
(status & SerialSignal_DCD) ? "on" : "off");
if (status & SerialSignal_DCD)
- wake_up_interruptible(&info->open_wait);
+ wake_up_interruptible(&info->port.open_wait);
else {
if ( debug_level >= DEBUG_LEVEL_ISR )
printk("doing serial hangup...");
- if (info->tty)
- tty_hangup(info->tty);
+ if (info->port.tty)
+ tty_hangup(info->port.tty);
}
}

- if ( (info->flags & ASYNC_CTS_FLOW) &&
+ if ( (info->port.flags & ASYNC_CTS_FLOW) &&
(status & MISCSTATUS_CTS_LATCHED) ) {
- if ( info->tty ) {
- if (info->tty->hw_stopped) {
+ if ( info->port.tty ) {
+ if (info->port.tty->hw_stopped) {
if (status & SerialSignal_CTS) {
if ( debug_level >= DEBUG_LEVEL_ISR )
printk("CTS tx start...");
- info->tty->hw_stopped = 0;
+ info->port.tty->hw_stopped = 0;
tx_start(info);
info->pending_bh |= BH_TRANSMIT;
return;
@@ -2585,7 +2579,7 @@ static void isr_io_pin( SLMP_INFO *info, u16 status )
if (!(status & SerialSignal_CTS)) {
if ( debug_level >= DEBUG_LEVEL_ISR )
printk("CTS tx stop...");
- info->tty->hw_stopped = 1;
+ info->port.tty->hw_stopped = 1;
tx_stop(info);
}
}
@@ -2701,7 +2695,7 @@ static irqreturn_t synclinkmp_interrupt(int dummy, void *dev_id)
* do not request bottom half processing if the
* device is not open in a normal mode.
*/
- if ( port && (port->count || port->netcount) &&
+ if ( port && (port->port.count || port->netcount) &&
port->pending_bh && !port->bh_running &&
!port->bh_requested ) {
if ( debug_level >= DEBUG_LEVEL_ISR )
@@ -2727,7 +2721,7 @@ static int startup(SLMP_INFO * info)
if ( debug_level >= DEBUG_LEVEL_INFO )
printk("%s(%d):%s tx_releaseup()\n",__FILE__,__LINE__,info->device_name);

- if (info->flags & ASYNC_INITIALIZED)
+ if (info->port.flags & ASYNC_INITIALIZED)
return 0;

if (!info->tx_buf) {
@@ -2750,10 +2744,10 @@ static int startup(SLMP_INFO * info)

mod_timer(&info->status_timer, jiffies + msecs_to_jiffies(10));

- 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;
}
@@ -2764,7 +2758,7 @@ static void shutdown(SLMP_INFO * info)
{
unsigned long flags;

- if (!(info->flags & ASYNC_INITIALIZED))
+ if (!(info->port.flags & ASYNC_INITIALIZED))
return;

if (debug_level >= DEBUG_LEVEL_INFO)
@@ -2786,17 +2780,17 @@ static void shutdown(SLMP_INFO * info)

reset_port(info);

- if (!info->tty || info->tty->termios->c_cflag & HUPCL) {
+ if (!info->port.tty || info->port.tty->termios->c_cflag & HUPCL) {
info->serial_signals &= ~(SerialSignal_DTR + SerialSignal_RTS);
set_signals(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(SLMP_INFO *info)
@@ -2827,7 +2821,7 @@ static void program_hw(SLMP_INFO *info)

get_signals(info);

- if (info->netcount || (info->tty && info->tty->termios->c_cflag & CREAD) )
+ if (info->netcount || (info->port.tty && info->port.tty->termios->c_cflag & CREAD) )
rx_start(info);

spin_unlock_irqrestore(&info->lock,flags);
@@ -2840,14 +2834,14 @@ static void change_params(SLMP_INFO *info)
unsigned cflag;
int bits_per_char;

- if (!info->tty || !info->tty->termios)
+ if (!info->port.tty || !info->port.tty->termios)
return;

if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):%s change_params()\n",
__FILE__,__LINE__, 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 */
@@ -2895,7 +2889,7 @@ static void change_params(SLMP_INFO *info)
* current data rate.
*/
if (info->params.data_rate <= 460800) {
- 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 ) {
@@ -2905,30 +2899,30 @@ static void change_params(SLMP_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_mask2 = OVRN;
- if (I_INPCK(info->tty))
+ if (I_INPCK(info->port.tty))
info->read_status_mask2 |= PE | FRME;
- if (I_BRKINT(info->tty) || I_PARMRK(info->tty))
+ if (I_BRKINT(info->port.tty) || I_PARMRK(info->port.tty))
info->read_status_mask1 |= BRKD;
- if (I_IGNPAR(info->tty))
+ if (I_IGNPAR(info->port.tty))
info->ignore_status_mask2 |= PE | FRME;
- if (I_IGNBRK(info->tty)) {
+ if (I_IGNBRK(info->port.tty)) {
info->ignore_status_mask1 |= BRKD;
/* 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_mask2 |= OVRN;
}

@@ -3348,7 +3342,7 @@ 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 */
/* just verify that callout device is not active */
- info->flags |= ASYNC_NORMAL_ACTIVE;
+ info->port.flags |= ASYNC_NORMAL_ACTIVE;
return 0;
}

@@ -3357,25 +3351,25 @@ 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);

if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):%s block_til_ready() before block, count=%d\n",
- __FILE__,__LINE__, tty->driver->name, info->count );
+ __FILE__,__LINE__, tty->driver->name, info->port.count );

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)) {
@@ -3387,8 +3381,8 @@ 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;
}
@@ -3397,7 +3391,7 @@ 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->serial_signals & SerialSignal_DCD)) ) {
break;
}
@@ -3409,24 +3403,24 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,

if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):%s block_til_ready() count=%d\n",
- __FILE__,__LINE__, tty->driver->name, info->count );
+ __FILE__,__LINE__, tty->driver->name, info->port.count );

schedule();
}

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 (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):%s block_til_ready() after, count=%d\n",
- __FILE__,__LINE__, tty->driver->name, info->count );
+ __FILE__,__LINE__, tty->driver->name, info->port.count );

if (!retval)
- info->flags |= ASYNC_NORMAL_ACTIVE;
+ info->port.flags |= ASYNC_NORMAL_ACTIVE;

return retval;
}
@@ -3813,8 +3807,7 @@ static SLMP_INFO *alloc_dev(int adapter_num, int port_num, struct pci_dev *pdev)
info->max_frame_size = 4096;
info->close_delay = 5*HZ/10;
info->closing_wait = 30*HZ;
- init_waitqueue_head(&info->open_wait);
- init_waitqueue_head(&info->close_wait);
+ tty_port_init(&info->port);
init_waitqueue_head(&info->status_event_wait_q);
init_waitqueue_head(&info->event_wait_q);
spin_lock_init(&info->netlock);
@@ -4885,7 +4878,7 @@ static bool rx_get_frame(SLMP_INFO *info)
unsigned int framesize = 0;
bool ReturnCode = false;
unsigned long flags;
- struct tty_struct *tty = info->tty;
+ struct tty_struct *tty = info->port.tty;
unsigned char addr_field = 0xff;
SCADESC *desc;
SCADESC_EX *desc_ex;
@@ -5293,11 +5286,11 @@ static bool loopback_test(SLMP_INFO *info)
bool rc = false;
unsigned long flags;

- struct tty_struct *oldtty = info->tty;
+ struct tty_struct *oldtty = info->port.tty;
u32 speed = info->params.clock_speed;

info->params.clock_speed = 3686400;
- info->tty = NULL;
+ info->port.tty = NULL;

/* assume failure */
info->init_error = DiagStatus_DmaFailure;
@@ -5341,7 +5334,7 @@ static bool loopback_test(SLMP_INFO *info)
spin_unlock_irqrestore(&info->lock,flags);

info->params.clock_speed = speed;
- info->tty = oldtty;
+ info->port.tty = oldtty;

return rc;
}


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