* [PATCH 01/20] tty: Introduce a tty_port common structure
2008-05-19 14:50 [PATCH 00/20] Implment a tty port structure and supporting logic Alan Cox
@ 2008-05-19 14:50 ` Alan Cox
2008-05-19 17:47 ` Sam Ravnborg
2008-05-19 14:50 ` [PATCH 02/20] tty: Clean up tiocmset Alan Cox
` (20 subsequent siblings)
21 siblings, 1 reply; 32+ messages in thread
From: Alan Cox @ 2008-05-19 14:50 UTC (permalink / raw)
To: linux-kernel, akpm, greg
From: Alan Cox <alan@redhat.com>
Every tty driver has its own concept of a port structure and because they all
differ we cannot extract commonality. Begin fixing this by creating a structure
drivers can elect to use so that over time we can push fields into this and
create commonality and then introduce common methods.
---
drivers/char/tty_io.c | 37 +++++++++++++++++++++++++++++++++++++
include/linux/tty.h | 29 +++++++++++++++++++++++++++++
2 files changed, 66 insertions(+), 0 deletions(-)
diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c
index 49c1a22..fb17b18 100644
--- a/drivers/char/tty_io.c
+++ b/drivers/char/tty_io.c
@@ -2004,6 +2004,43 @@ ssize_t redirected_tty_write(struct file *file, const char __user *buf,
return tty_write(file, buf, count, ppos);
}
+void tty_port_init(struct tty_port *port)
+{
+ memset(port, 0, sizeof(*port));
+ init_waitqueue_head(&port->open_wait);
+ init_waitqueue_head(&port->close_wait);
+ mutex_init(&port->mutex);
+}
+
+EXPORT_SYMBOL(tty_port_init);
+
+int tty_port_alloc_xmit_buf(struct tty_port *port)
+{
+ /* We may sleep in get_zeroed_page() */
+ mutex_lock(&port->mutex);
+ if (port->xmit_buf == NULL)
+ port->xmit_buf = (unsigned char *)get_zeroed_page(GFP_KERNEL);
+ mutex_unlock(&port->mutex);
+ if (port->xmit_buf == NULL)
+ return -ENOMEM;
+ return 0;
+}
+
+EXPORT_SYMBOL(tty_port_alloc_xmit_buf);
+
+void tty_port_free_xmit_buf(struct tty_port *port)
+{
+ mutex_lock(&port->mutex);
+ if (port->xmit_buf != NULL) {
+ free_page((unsigned long)port->xmit_buf);
+ port->xmit_buf = NULL;
+ }
+ mutex_unlock(&port->mutex);
+}
+
+EXPORT_SYMBOL(tty_port_free_xmit_buf);
+
+
static char ptychar[] = "pqrstuvwxyzabcde";
/**
diff --git a/include/linux/tty.h b/include/linux/tty.h
index 7f7121f..a5dc3e9 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -166,6 +166,30 @@ struct tty_bufhead {
struct device;
struct signal_struct;
+
+/*
+ * Port level information. Each device keeps its own port level information
+ * so provide a common structure for those ports wanting to use common support
+ * routines.
+ *
+ * The tty port has a different lifetime to the tty so must be kept apart.
+ * In addition be careful as tty -> port mappings are valid for the life
+ * of the tty object but in many cases port -> tty mappings are valid only
+ * until a hangup so don't use the wrong path.
+ */
+
+struct tty_port
+{
+ struct tty_struct *tty; /* Back pointer */
+ int blocked_open; /* Waiting to open */
+ int count; /* Usage count */
+ wait_queue_head_t open_wait; /* Open waiters */
+ wait_queue_head_t close_wait; /* Close waiters */
+ unsigned long flags; /* TTY flags ASY_*/
+ struct mutex mutex; /* Locking */
+ unsigned char *xmit_buf; /* Optional buffer */
+};
+
/*
* Where all of the state associated with a tty is kept while the tty
* is open. Since the termios state should be kept even if the tty
@@ -241,6 +265,7 @@ struct tty_struct {
spinlock_t read_lock;
/* If the tty has a pending do_SAK, queue it here - akpm */
struct work_struct SAK_work;
+ struct tty_port *port;
};
/* tty magic number */
@@ -351,6 +376,10 @@ extern void tty_write_unlock(struct tty_struct *tty);
extern int tty_write_lock(struct tty_struct *tty, int ndelay);
#define tty_is_writelocked(tty) (mutex_is_locked(&tty->atomic_write_lock))
+extern void tty_port_init(struct tty_port *port);
+extern int tty_port_alloc_xmit_buf(struct tty_port *port);
+extern void tty_port_free_xmit_buf(struct tty_port *port);
+
/* n_tty.c */
^ permalink raw reply related [flat|nested] 32+ messages in thread* Re: [PATCH 01/20] tty: Introduce a tty_port common structure
2008-05-19 14:50 ` [PATCH 01/20] tty: Introduce a tty_port common structure Alan Cox
@ 2008-05-19 17:47 ` Sam Ravnborg
2008-05-19 17:51 ` Greg KH
0 siblings, 1 reply; 32+ messages in thread
From: Sam Ravnborg @ 2008-05-19 17:47 UTC (permalink / raw)
To: Alan Cox; +Cc: linux-kernel, akpm, greg
Hi Alan.
On Mon, May 19, 2008 at 03:50:13PM +0100, Alan Cox wrote:
> From: Alan Cox <alan@redhat.com>
>
> Every tty driver has its own concept of a port structure and because they all
> differ we cannot extract commonality. Begin fixing this by creating a structure
> drivers can elect to use so that over time we can push fields into this and
> create commonality and then introduce common methods.
> ---
>
> drivers/char/tty_io.c | 37 +++++++++++++++++++++++++++++++++++++
> include/linux/tty.h | 29 +++++++++++++++++++++++++++++
> 2 files changed, 66 insertions(+), 0 deletions(-)
>
>
> diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c
> index 49c1a22..fb17b18 100644
> --- a/drivers/char/tty_io.c
> +++ b/drivers/char/tty_io.c
> @@ -2004,6 +2004,43 @@ ssize_t redirected_tty_write(struct file *file, const char __user *buf,
> return tty_write(file, buf, count, ppos);
> }
>
> +void tty_port_init(struct tty_port *port)
> +{
> + memset(port, 0, sizeof(*port));
> + init_waitqueue_head(&port->open_wait);
> + init_waitqueue_head(&port->close_wait);
> + mutex_init(&port->mutex);
> +}
> +
> +EXPORT_SYMBOL(tty_port_init);
A small nitpick...
The typical style is to let the EXPORT_SYMBOL follow the closing
brace with no extra empty line.
Sam
^ permalink raw reply [flat|nested] 32+ messages in thread* Re: [PATCH 01/20] tty: Introduce a tty_port common structure
2008-05-19 17:47 ` Sam Ravnborg
@ 2008-05-19 17:51 ` Greg KH
2008-05-19 19:48 ` Alan Cox
0 siblings, 1 reply; 32+ messages in thread
From: Greg KH @ 2008-05-19 17:51 UTC (permalink / raw)
To: Sam Ravnborg; +Cc: Alan Cox, linux-kernel, akpm
On Mon, May 19, 2008 at 07:47:39PM +0200, Sam Ravnborg wrote:
> Hi Alan.
>
> On Mon, May 19, 2008 at 03:50:13PM +0100, Alan Cox wrote:
> > From: Alan Cox <alan@redhat.com>
> >
> > Every tty driver has its own concept of a port structure and because they all
> > differ we cannot extract commonality. Begin fixing this by creating a structure
> > drivers can elect to use so that over time we can push fields into this and
> > create commonality and then introduce common methods.
> > ---
> >
> > drivers/char/tty_io.c | 37 +++++++++++++++++++++++++++++++++++++
> > include/linux/tty.h | 29 +++++++++++++++++++++++++++++
> > 2 files changed, 66 insertions(+), 0 deletions(-)
> >
> >
> > diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c
> > index 49c1a22..fb17b18 100644
> > --- a/drivers/char/tty_io.c
> > +++ b/drivers/char/tty_io.c
> > @@ -2004,6 +2004,43 @@ ssize_t redirected_tty_write(struct file *file, const char __user *buf,
> > return tty_write(file, buf, count, ppos);
> > }
> >
> > +void tty_port_init(struct tty_port *port)
> > +{
> > + memset(port, 0, sizeof(*port));
> > + init_waitqueue_head(&port->open_wait);
> > + init_waitqueue_head(&port->close_wait);
> > + mutex_init(&port->mutex);
> > +}
> > +
> > +EXPORT_SYMBOL(tty_port_init);
> A small nitpick...
> The typical style is to let the EXPORT_SYMBOL follow the closing
> brace with no extra empty line.
I'll run them through checkpatch.pl and fix up any minor things like
this before sending them off, that's part of my normal patch-queue
process :)
thanks,
greg k-h
^ permalink raw reply [flat|nested] 32+ messages in thread* Re: [PATCH 01/20] tty: Introduce a tty_port common structure
2008-05-19 17:51 ` Greg KH
@ 2008-05-19 19:48 ` Alan Cox
2008-05-19 21:36 ` Greg KH
0 siblings, 1 reply; 32+ messages in thread
From: Alan Cox @ 2008-05-19 19:48 UTC (permalink / raw)
To: Greg KH; +Cc: Sam Ravnborg, linux-kernel, akpm
On Mon, 19 May 2008 10:51:21 -0700
Greg KH <greg@kroah.com> wrote:
> On Mon, May 19, 2008 at 07:47:39PM +0200, Sam Ravnborg wrote:
> > Hi Alan.
> >
> > On Mon, May 19, 2008 at 03:50:13PM +0100, Alan Cox wrote:
> I'll run them through checkpatch.pl and fix up any minor things like
> this before sending them off, that's part of my normal patch-queue
> process :)
Please do *NOT* do that. It messes up resolving them against pending and
further patches that are not upstream. If you insist on doing that then I
will submit the patches myself via a different tree which does not.
By all means report cases where checkpatch isn't clean on them and send
me diffs to go back via my devel tree however.
Alan
^ permalink raw reply [flat|nested] 32+ messages in thread
* Re: [PATCH 01/20] tty: Introduce a tty_port common structure
2008-05-19 19:48 ` Alan Cox
@ 2008-05-19 21:36 ` Greg KH
0 siblings, 0 replies; 32+ messages in thread
From: Greg KH @ 2008-05-19 21:36 UTC (permalink / raw)
To: Alan Cox; +Cc: Sam Ravnborg, linux-kernel, akpm
On Mon, May 19, 2008 at 08:48:04PM +0100, Alan Cox wrote:
> On Mon, 19 May 2008 10:51:21 -0700
> Greg KH <greg@kroah.com> wrote:
>
> > On Mon, May 19, 2008 at 07:47:39PM +0200, Sam Ravnborg wrote:
> > > Hi Alan.
> > >
> > > On Mon, May 19, 2008 at 03:50:13PM +0100, Alan Cox wrote:
> > I'll run them through checkpatch.pl and fix up any minor things like
> > this before sending them off, that's part of my normal patch-queue
> > process :)
>
> Please do *NOT* do that. It messes up resolving them against pending and
> further patches that are not upstream. If you insist on doing that then I
> will submit the patches myself via a different tree which does not.
>
> By all means report cases where checkpatch isn't clean on them and send
> me diffs to go back via my devel tree however.
Ok, will do, I understand. I think that one mention of an exported
symbol will be flagged, I'll let you know about any further ones.
thanks,
greg k-h
^ permalink raw reply [flat|nested] 32+ messages in thread
* [PATCH 02/20] tty: Clean up tiocmset
2008-05-19 14:50 [PATCH 00/20] Implment a tty port structure and supporting logic Alan Cox
2008-05-19 14:50 ` [PATCH 01/20] tty: Introduce a tty_port common structure Alan Cox
@ 2008-05-19 14:50 ` Alan Cox
2008-05-19 14:50 ` [PATCH 03/20] epca: use tty_port Alan Cox
` (19 subsequent siblings)
21 siblings, 0 replies; 32+ messages in thread
From: Alan Cox @ 2008-05-19 14:50 UTC (permalink / raw)
To: linux-kernel, akpm, greg
From: Alan Cox <alan@redhat.com>
Reverse the order of one test and it gets much more readable
---
drivers/char/tty_io.c | 48 ++++++++++++++++++++++--------------------------
1 files changed, 22 insertions(+), 26 deletions(-)
diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c
index fb17b18..31ab8f0 100644
--- a/drivers/char/tty_io.c
+++ b/drivers/char/tty_io.c
@@ -3402,35 +3402,31 @@ static int tty_tiocmget(struct tty_struct *tty, struct file *file, int __user *p
static int tty_tiocmset(struct tty_struct *tty, struct file *file, unsigned int cmd,
unsigned __user *p)
{
- int retval = -EINVAL;
-
- if (tty->ops->tiocmset) {
- unsigned int set, clear, val;
-
- retval = get_user(val, p);
- if (retval)
- return retval;
-
- set = clear = 0;
- switch (cmd) {
- case TIOCMBIS:
- set = val;
- break;
- case TIOCMBIC:
- clear = val;
- break;
- case TIOCMSET:
- set = val;
- clear = ~val;
- break;
- }
+ int retval;
+ unsigned int set, clear, val;
- set &= TIOCM_DTR|TIOCM_RTS|TIOCM_OUT1|TIOCM_OUT2|TIOCM_LOOP;
- clear &= TIOCM_DTR|TIOCM_RTS|TIOCM_OUT1|TIOCM_OUT2|TIOCM_LOOP;
+ if (tty->ops->tiocmset == NULL)
+ return -EINVAL;
- retval = tty->ops->tiocmset(tty, file, set, clear);
+ retval = get_user(val, p);
+ if (retval)
+ return retval;
+ set = clear = 0;
+ switch (cmd) {
+ case TIOCMBIS:
+ set = val;
+ break;
+ case TIOCMBIC:
+ clear = val;
+ break;
+ case TIOCMSET:
+ set = val;
+ clear = ~val;
+ break;
}
- return retval;
+ set &= TIOCM_DTR|TIOCM_RTS|TIOCM_OUT1|TIOCM_OUT2|TIOCM_LOOP;
+ clear &= TIOCM_DTR|TIOCM_RTS|TIOCM_OUT1|TIOCM_OUT2|TIOCM_LOOP;
+ return tty->ops->tiocmset(tty, file, set, clear);
}
/*
^ permalink raw reply related [flat|nested] 32+ messages in thread* [PATCH 03/20] epca: use tty_port
2008-05-19 14:50 [PATCH 00/20] Implment a tty port structure and supporting logic Alan Cox
2008-05-19 14:50 ` [PATCH 01/20] tty: Introduce a tty_port common structure Alan Cox
2008-05-19 14:50 ` [PATCH 02/20] tty: Clean up tiocmset Alan Cox
@ 2008-05-19 14:50 ` Alan Cox
2008-05-19 14:50 ` [PATCH 04/20] isicom: " Alan Cox
` (18 subsequent siblings)
21 siblings, 0 replies; 32+ messages in thread
From: Alan Cox @ 2008-05-19 14:50 UTC (permalink / raw)
To: linux-kernel, akpm, greg
From: Alan Cox <alan@redhat.com>
Switch the EPCA driver to include and begin using a tty_port structure
---
drivers/char/epca.c | 106 ++++++++++++++++++++++++++-------------------------
drivers/char/epca.h | 7 ---
2 files changed, 54 insertions(+), 59 deletions(-)
diff --git a/drivers/char/epca.c b/drivers/char/epca.c
index 60a4df7..d26752b 100644
--- a/drivers/char/epca.c
+++ b/drivers/char/epca.c
@@ -432,7 +432,7 @@ static void pc_close(struct tty_struct *tty, struct file *filp)
spin_unlock_irqrestore(&epca_lock, flags);
return;
}
- if (ch->count-- > 1) {
+ if (ch->port.count-- > 1) {
/* Begin channel is open more than once */
/*
* Return without doing anything. Someone might still
@@ -442,19 +442,19 @@ static void pc_close(struct tty_struct *tty, struct file *filp)
return;
}
/* Port open only once go ahead with shutdown & reset */
- BUG_ON(ch->count < 0);
+ BUG_ON(ch->port.count < 0);
/*
* Let the rest of the driver know the channel is being closed.
* This becomes important if an open is attempted before close
* is finished.
*/
- ch->asyncflags |= ASYNC_CLOSING;
+ ch->port.flags |= ASYNC_CLOSING;
tty->closing = 1;
spin_unlock_irqrestore(&epca_lock, flags);
- if (ch->asyncflags & ASYNC_INITIALIZED) {
+ if (ch->port.flags & ASYNC_INITIALIZED) {
/* Setup an event to indicate when the
transmit buffer empties */
setup_empty_event(tty, ch);
@@ -469,17 +469,17 @@ static void pc_close(struct tty_struct *tty, struct file *filp)
spin_lock_irqsave(&epca_lock, flags);
tty->closing = 0;
ch->event = 0;
- ch->tty = NULL;
+ ch->port.tty = NULL;
spin_unlock_irqrestore(&epca_lock, flags);
- if (ch->blocked_open) {
+ if (ch->port.blocked_open) {
if (ch->close_delay)
msleep_interruptible(jiffies_to_msecs(ch->close_delay));
- wake_up_interruptible(&ch->open_wait);
+ wake_up_interruptible(&ch->port.open_wait);
}
- ch->asyncflags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_INITIALIZED |
+ ch->port.flags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_INITIALIZED |
ASYNC_CLOSING);
- wake_up_interruptible(&ch->close_wait);
+ wake_up_interruptible(&ch->port.close_wait);
}
}
@@ -489,7 +489,7 @@ static void shutdown(struct channel *ch)
struct tty_struct *tty;
struct board_chan __iomem *bc;
- if (!(ch->asyncflags & ASYNC_INITIALIZED))
+ if (!(ch->port.flags & ASYNC_INITIALIZED))
return;
spin_lock_irqsave(&epca_lock, flags);
@@ -504,7 +504,7 @@ static void shutdown(struct channel *ch)
*/
if (bc)
writeb(0, &bc->idata);
- tty = ch->tty;
+ tty = ch->port.tty;
/* If we're a modem control device and HUPCL is on, drop RTS & DTR. */
if (tty->termios->c_cflag & HUPCL) {
@@ -518,7 +518,7 @@ static void shutdown(struct channel *ch)
* will have to reinitialized. Set a flag to indicate this.
*/
/* Prevent future Digi programmed interrupts from coming active */
- ch->asyncflags &= ~ASYNC_INITIALIZED;
+ ch->port.flags &= ~ASYNC_INITIALIZED;
spin_unlock_irqrestore(&epca_lock, flags);
}
@@ -538,12 +538,12 @@ static void pc_hangup(struct tty_struct *tty)
shutdown(ch);
spin_lock_irqsave(&epca_lock, flags);
- ch->tty = NULL;
+ ch->port.tty = NULL;
ch->event = 0;
- ch->count = 0;
- ch->asyncflags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_INITIALIZED);
+ ch->port.count = 0;
+ ch->port.flags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_INITIALIZED);
spin_unlock_irqrestore(&epca_lock, flags);
- wake_up_interruptible(&ch->open_wait);
+ wake_up_interruptible(&ch->port.open_wait);
}
}
@@ -795,7 +795,7 @@ static int block_til_ready(struct tty_struct *tty,
unsigned long flags;
if (tty_hung_up_p(filp)) {
- if (ch->asyncflags & ASYNC_HUP_NOTIFY)
+ if (ch->port.flags & ASYNC_HUP_NOTIFY)
retval = -EAGAIN;
else
retval = -ERESTARTSYS;
@@ -806,10 +806,10 @@ static int block_til_ready(struct tty_struct *tty,
* If the device is in the middle of being closed, then block until
* it's done, and then try again.
*/
- if (ch->asyncflags & ASYNC_CLOSING) {
- interruptible_sleep_on(&ch->close_wait);
+ if (ch->port.flags & ASYNC_CLOSING) {
+ interruptible_sleep_on(&ch->port.close_wait);
- if (ch->asyncflags & ASYNC_HUP_NOTIFY)
+ if (ch->port.flags & ASYNC_HUP_NOTIFY)
return -EAGAIN;
else
return -ERESTARTSYS;
@@ -820,7 +820,7 @@ static int block_til_ready(struct tty_struct *tty,
* If non-blocking mode is set, then make the check up front
* and then exit.
*/
- ch->asyncflags |= ASYNC_NORMAL_ACTIVE;
+ ch->port.flags |= ASYNC_NORMAL_ACTIVE;
return 0;
}
if (tty->termios->c_cflag & CLOCAL)
@@ -828,24 +828,24 @@ static int block_til_ready(struct tty_struct *tty,
/* Block waiting for the carrier detect and the line to become free */
retval = 0;
- add_wait_queue(&ch->open_wait, &wait);
+ add_wait_queue(&ch->port.open_wait, &wait);
spin_lock_irqsave(&epca_lock, flags);
/* We dec count so that pc_close will know when to free things */
if (!tty_hung_up_p(filp))
- ch->count--;
- ch->blocked_open++;
+ ch->port.count--;
+ ch->port.blocked_open++;
while (1) {
set_current_state(TASK_INTERRUPTIBLE);
if (tty_hung_up_p(filp) ||
- !(ch->asyncflags & ASYNC_INITIALIZED)) {
- if (ch->asyncflags & ASYNC_HUP_NOTIFY)
+ !(ch->port.flags & ASYNC_INITIALIZED)) {
+ if (ch->port.flags & ASYNC_HUP_NOTIFY)
retval = -EAGAIN;
else
retval = -ERESTARTSYS;
break;
}
- if (!(ch->asyncflags & ASYNC_CLOSING) &&
+ if (!(ch->port.flags & ASYNC_CLOSING) &&
(do_clocal || (ch->imodem & ch->dcd)))
break;
if (signal_pending(current)) {
@@ -864,17 +864,17 @@ static int block_til_ready(struct tty_struct *tty,
}
__set_current_state(TASK_RUNNING);
- remove_wait_queue(&ch->open_wait, &wait);
+ remove_wait_queue(&ch->port.open_wait, &wait);
if (!tty_hung_up_p(filp))
- ch->count++;
- ch->blocked_open--;
+ ch->port.count++;
+ ch->port.blocked_open--;
spin_unlock_irqrestore(&epca_lock, flags);
if (retval)
return retval;
- ch->asyncflags |= ASYNC_NORMAL_ACTIVE;
+ ch->port.flags |= ASYNC_NORMAL_ACTIVE;
return 0;
}
@@ -933,7 +933,7 @@ static int pc_open(struct tty_struct *tty, struct file *filp)
* necessary because we do not wish to flush and shutdown the channel
* until the last app holding the channel open, closes it.
*/
- ch->count++;
+ ch->port.count++;
/*
* Set a kernel structures pointer to our local channel structure. This
* way we can get to it when passed only a tty struct.
@@ -957,14 +957,14 @@ static int pc_open(struct tty_struct *tty, struct file *filp)
writew(head, &bc->rout);
/* Set the channels associated tty structure */
- ch->tty = tty;
+ ch->port.tty = tty;
/*
* The below routine generally sets up parity, baud, flow control
* issues, etc.... It effect both control flags and input flags.
*/
epcaparam(tty, ch);
- ch->asyncflags |= ASYNC_INITIALIZED;
+ ch->port.flags |= ASYNC_INITIALIZED;
memoff(ch);
spin_unlock_irqrestore(&epca_lock, flags);
@@ -976,7 +976,7 @@ static int pc_open(struct tty_struct *tty, struct file *filp)
* waiting for the line...
*/
spin_lock_irqsave(&epca_lock, flags);
- ch->tty = tty;
+ ch->port.tty = tty;
globalwinon(ch);
/* Enable Digi Data events */
writeb(1, &bc->idata);
@@ -1017,8 +1017,8 @@ static void __exit epca_module_exit(void)
}
ch = card_ptr[crd];
for (count = 0; count < bd->numports; count++, ch++) {
- if (ch && ch->tty)
- tty_hangup(ch->tty);
+ if (ch && ch->port.tty)
+ tty_hangup(ch->port.tty);
}
}
pci_unregister_driver(&epca_driver);
@@ -1427,7 +1427,7 @@ static void post_fep_init(unsigned int crd)
ch->boardnum = crd;
ch->channelnum = i;
ch->magic = EPCA_MAGIC;
- ch->tty = NULL;
+ ch->port.tty = NULL;
if (shrinkmem) {
fepcmd(ch, SETBUFFER, 32, 0, 0, 0);
@@ -1510,10 +1510,10 @@ static void post_fep_init(unsigned int crd)
ch->fepstopca = 0;
ch->close_delay = 50;
- ch->count = 0;
- ch->blocked_open = 0;
- init_waitqueue_head(&ch->open_wait);
- init_waitqueue_head(&ch->close_wait);
+ ch->port.count = 0;
+ ch->port.blocked_open = 0;
+ init_waitqueue_head(&ch->port.open_wait);
+ init_waitqueue_head(&ch->port.close_wait);
spin_unlock_irqrestore(&epca_lock, flags);
}
@@ -1633,15 +1633,15 @@ static void doevent(int crd)
if (event & MODEMCHG_IND) {
/* A modem signal change has been indicated */
ch->imodem = mstat;
- if (ch->asyncflags & ASYNC_CHECK_CD) {
+ if (ch->port.flags & ASYNC_CHECK_CD) {
/* We are now receiving dcd */
if (mstat & ch->dcd)
- wake_up_interruptible(&ch->open_wait);
+ wake_up_interruptible(&ch->port.open_wait);
else /* No dcd; hangup */
pc_sched_event(ch, EPCA_EVENT_HANGUP);
}
}
- tty = ch->tty;
+ tty = ch->port.tty;
if (tty) {
if (event & BREAK_IND) {
/* A break has been indicated */
@@ -1880,9 +1880,9 @@ static void epcaparam(struct tty_struct *tty, struct channel *ch)
* that the driver will wait on carrier detect.
*/
if (ts->c_cflag & CLOCAL)
- ch->asyncflags &= ~ASYNC_CHECK_CD;
+ ch->port.flags &= ~ASYNC_CHECK_CD;
else
- ch->asyncflags |= ASYNC_CHECK_CD;
+ ch->port.flags |= ASYNC_CHECK_CD;
mval = ch->m_dtr | ch->m_rts;
} /* End CBAUD not detected */
iflag = termios2digi_i(ch, ts->c_iflag);
@@ -1972,7 +1972,7 @@ static void receive_data(struct channel *ch)
globalwinon(ch);
if (ch->statusflags & RXSTOPPED)
return;
- tty = ch->tty;
+ tty = ch->port.tty;
if (tty)
ts = tty->termios;
bc = ch->brdchan;
@@ -2032,7 +2032,7 @@ static void receive_data(struct channel *ch)
globalwinon(ch);
writew(tail, &bc->rout);
/* Must be called with global data */
- tty_schedule_flip(ch->tty);
+ tty_schedule_flip(ch->port.tty);
}
static int info_ioctl(struct tty_struct *tty, struct file *file,
@@ -2376,7 +2376,7 @@ static void pc_set_termios(struct tty_struct *tty, struct ktermios *old_termios)
if (!(old_termios->c_cflag & CLOCAL) &&
(tty->termios->c_cflag & CLOCAL))
- wake_up_interruptible(&ch->open_wait);
+ wake_up_interruptible(&ch->port.open_wait);
} /* End if channel valid */
}
@@ -2386,13 +2386,13 @@ static void do_softint(struct work_struct *work)
struct channel *ch = container_of(work, struct channel, tqueue);
/* Called in response to a modem change event */
if (ch && ch->magic == EPCA_MAGIC) {
- struct tty_struct *tty = ch->tty;
+ struct tty_struct *tty = ch->port.tty;
if (tty && tty->driver_data) {
if (test_and_clear_bit(EPCA_EVENT_HANGUP, &ch->event)) {
tty_hangup(tty);
- wake_up_interruptible(&ch->open_wait);
- ch->asyncflags &= ~ASYNC_NORMAL_ACTIVE;
+ wake_up_interruptible(&ch->port.open_wait);
+ ch->port.flags &= ~ASYNC_NORMAL_ACTIVE;
}
}
}
diff --git a/drivers/char/epca.h b/drivers/char/epca.h
index 3c77c02..d414bf2 100644
--- a/drivers/char/epca.h
+++ b/drivers/char/epca.h
@@ -84,6 +84,7 @@ static char *board_desc[] =
struct channel
{
long magic;
+ struct tty_port port;
unsigned char boardnum;
unsigned char channelnum;
unsigned char omodem; /* FEP output modem status */
@@ -117,10 +118,7 @@ struct channel
unsigned short rxbufhead;
unsigned short rxbufsize;
int close_delay;
- int count;
- int blocked_open;
unsigned long event;
- int asyncflags;
uint dev;
unsigned long statusflags;
unsigned long c_iflag;
@@ -132,9 +130,6 @@ struct channel
struct board_info *board;
struct board_chan __iomem *brdchan;
struct digi_struct digiext;
- struct tty_struct *tty;
- wait_queue_head_t open_wait;
- wait_queue_head_t close_wait;
struct work_struct tqueue;
struct global_data __iomem *mailbox;
};
^ permalink raw reply related [flat|nested] 32+ messages in thread* [PATCH 04/20] isicom: use tty_port
2008-05-19 14:50 [PATCH 00/20] Implment a tty port structure and supporting logic Alan Cox
` (2 preceding siblings ...)
2008-05-19 14:50 ` [PATCH 03/20] epca: use tty_port Alan Cox
@ 2008-05-19 14:50 ` Alan Cox
2008-05-19 14:50 ` [PATCH 05/20] moxa: " Alan Cox
` (17 subsequent siblings)
21 siblings, 0 replies; 32+ messages in thread
From: Alan Cox @ 2008-05-19 14:50 UTC (permalink / raw)
To: linux-kernel, akpm, greg
From: Alan Cox <alan@redhat.com>
Switch isicom to use a tty_port structure for some fields
---
drivers/char/isicom.c | 181 +++++++++++++++++++++----------------------------
1 files changed, 79 insertions(+), 102 deletions(-)
diff --git a/drivers/char/isicom.c b/drivers/char/isicom.c
index 4f3cefa..20be56f 100644
--- a/drivers/char/isicom.c
+++ b/drivers/char/isicom.c
@@ -198,17 +198,12 @@ struct isi_board {
struct isi_port {
unsigned short magic;
- unsigned int flags;
- int count;
- int blocked_open;
+ struct tty_port port;
int close_delay;
u16 channel;
u16 status;
u16 closing_wait;
struct isi_board *card;
- struct tty_struct *tty;
- wait_queue_head_t close_wait;
- wait_queue_head_t open_wait;
unsigned char *xmit_buf;
int xmit_head;
int xmit_tail;
@@ -430,11 +425,11 @@ static void isicom_tx(unsigned long _data)
for (; count > 0; count--, port++) {
/* port not active or tx disabled to force flow control */
- if (!(port->flags & ASYNC_INITIALIZED) ||
+ if (!(port->port.flags & ASYNC_INITIALIZED) ||
!(port->status & ISI_TXOK))
continue;
- tty = port->tty;
+ tty = port->port.tty;
if (tty == NULL)
continue;
@@ -458,7 +453,7 @@ static void isicom_tx(unsigned long _data)
if (residue == YES) {
residue = NO;
if (cnt > 0) {
- wrd |= (port->xmit_buf[port->xmit_tail]
+ wrd |= (port->port.xmit_buf[port->xmit_tail]
<< 8);
port->xmit_tail = (port->xmit_tail + 1)
& (SERIAL_XMIT_SIZE - 1);
@@ -474,14 +469,14 @@ static void isicom_tx(unsigned long _data)
if (cnt <= 0)
break;
word_count = cnt >> 1;
- outsw(base, port->xmit_buf+port->xmit_tail, word_count);
+ outsw(base, port->port.xmit_buf+port->xmit_tail, word_count);
port->xmit_tail = (port->xmit_tail
+ (word_count << 1)) & (SERIAL_XMIT_SIZE - 1);
txcount -= (word_count << 1);
port->xmit_cnt -= (word_count << 1);
if (cnt & 0x0001) {
residue = YES;
- wrd = port->xmit_buf[port->xmit_tail];
+ wrd = port->port.xmit_buf[port->xmit_tail];
port->xmit_tail = (port->xmit_tail + 1)
& (SERIAL_XMIT_SIZE - 1);
port->xmit_cnt--;
@@ -548,13 +543,13 @@ static irqreturn_t isicom_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
port = card->ports + channel;
- if (!(port->flags & ASYNC_INITIALIZED)) {
+ if (!(port->port.flags & ASYNC_INITIALIZED)) {
outw(0x0000, base+0x04); /* enable interrupts */
spin_unlock(&card->card_lock);
return IRQ_HANDLED;
}
- tty = port->tty;
+ tty = port->port.tty;
if (tty == NULL) {
word_count = byte_count >> 1;
while (byte_count > 1) {
@@ -572,7 +567,7 @@ static irqreturn_t isicom_interrupt(int irq, void *dev_id)
header = inw(base);
switch (header & 0xff) {
case 0: /* Change in EIA signals */
- if (port->flags & ASYNC_CHECK_CD) {
+ if (port->port.flags & ASYNC_CHECK_CD) {
if (port->status & ISI_DCD) {
if (!(header & ISI_DCD)) {
/* Carrier has been lost */
@@ -585,7 +580,7 @@ static irqreturn_t isicom_interrupt(int irq, void *dev_id)
/* Carrier has been detected */
pr_dbg("interrupt: DCD->high.\n");
port->status |= ISI_DCD;
- wake_up_interruptible(&port->open_wait);
+ wake_up_interruptible(&port->port.open_wait);
}
} else {
if (header & ISI_DCD)
@@ -594,17 +589,17 @@ static irqreturn_t isicom_interrupt(int irq, void *dev_id)
port->status &= ~ISI_DCD;
}
- if (port->flags & ASYNC_CTS_FLOW) {
- if (port->tty->hw_stopped) {
+ if (port->port.flags & ASYNC_CTS_FLOW) {
+ if (port->port.tty->hw_stopped) {
if (header & ISI_CTS) {
- port->tty->hw_stopped = 0;
+ port->port.tty->hw_stopped = 0;
/* start tx ing */
port->status |= (ISI_TXOK
| ISI_CTS);
tty_wakeup(tty);
}
} else if (!(header & ISI_CTS)) {
- port->tty->hw_stopped = 1;
+ port->port.tty->hw_stopped = 1;
/* stop tx ing */
port->status &= ~(ISI_TXOK | ISI_CTS);
}
@@ -629,7 +624,7 @@ static irqreturn_t isicom_interrupt(int irq, void *dev_id)
case 1: /* Received Break !!! */
tty_insert_flip_char(tty, 0, TTY_BREAK);
- if (port->flags & ASYNC_SAK)
+ if (port->port.flags & ASYNC_SAK)
do_SAK(tty);
tty_flip_buffer_push(tty);
break;
@@ -681,7 +676,7 @@ static void isicom_config_port(struct isi_port *port)
shift_count = card->shift_count;
unsigned char flow_ctrl;
- tty = port->tty;
+ tty = port->port.tty;
if (tty == NULL)
return;
@@ -697,7 +692,7 @@ static void isicom_config_port(struct isi_port *port)
/* 1,2,3,4 => 57.6, 115.2, 230, 460 kbps resp. */
if (baud < 1 || baud > 4)
- port->tty->termios->c_cflag &= ~CBAUDEX;
+ port->port.tty->termios->c_cflag &= ~CBAUDEX;
else
baud += 15;
}
@@ -708,13 +703,13 @@ static void isicom_config_port(struct isi_port *port)
* the 'setserial' utility.
*/
- if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
+ if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
baud++; /* 57.6 Kbps */
- if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
+ if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
baud += 2; /* 115 Kbps */
- if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
+ if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
baud += 3; /* 230 kbps*/
- if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
+ if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
baud += 4; /* 460 kbps*/
}
if (linuxb_to_isib[baud] == -1) {
@@ -754,15 +749,15 @@ static void isicom_config_port(struct isi_port *port)
InterruptTheCard(base);
}
if (C_CLOCAL(tty))
- port->flags &= ~ASYNC_CHECK_CD;
+ port->port.flags &= ~ASYNC_CHECK_CD;
else
- port->flags |= ASYNC_CHECK_CD;
+ port->port.flags |= ASYNC_CHECK_CD;
/* flow control settings ...*/
flow_ctrl = 0;
- port->flags &= ~ASYNC_CTS_FLOW;
+ port->port.flags &= ~ASYNC_CTS_FLOW;
if (C_CRTSCTS(tty)) {
- port->flags |= ASYNC_CTS_FLOW;
+ port->port.flags |= ASYNC_CTS_FLOW;
flow_ctrl |= ISICOM_CTSRTS;
}
if (I_IXON(tty))
@@ -809,23 +804,15 @@ static int isicom_setup_port(struct isi_port *port)
struct isi_board *card = port->card;
unsigned long flags;
- if (port->flags & ASYNC_INITIALIZED)
+ if (port->port.flags & ASYNC_INITIALIZED)
return 0;
- if (!port->xmit_buf) {
- /* Relies on BKL */
- unsigned long page = get_zeroed_page(GFP_KERNEL);
- if (page == 0)
- return -ENOMEM;
- if (port->xmit_buf)
- free_page(page);
- else
- port->xmit_buf = (unsigned char *) page;
- }
+ if (tty_port_alloc_xmit_buf(&port->port) < 0)
+ return -ENOMEM;
spin_lock_irqsave(&card->card_lock, flags);
- if (port->tty)
- clear_bit(TTY_IO_ERROR, &port->tty->flags);
- if (port->count == 1)
+ if (port->port.tty)
+ clear_bit(TTY_IO_ERROR, &port->port.tty->flags);
+ if (port->port.count == 1)
card->count++;
port->xmit_cnt = port->xmit_head = port->xmit_tail = 0;
@@ -839,7 +826,7 @@ static int isicom_setup_port(struct isi_port *port)
}
isicom_config_port(port);
- port->flags |= ASYNC_INITIALIZED;
+ port->port.flags |= ASYNC_INITIALIZED;
spin_unlock_irqrestore(&card->card_lock, flags);
return 0;
@@ -855,10 +842,10 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
/* block if port is in the process of being closed */
- if (tty_hung_up_p(filp) || port->flags & ASYNC_CLOSING) {
+ if (tty_hung_up_p(filp) || port->port.flags & ASYNC_CLOSING) {
pr_dbg("block_til_ready: close in progress.\n");
- interruptible_sleep_on(&port->close_wait);
- if (port->flags & ASYNC_HUP_NOTIFY)
+ interruptible_sleep_on(&port->port.close_wait);
+ if (port->port.flags & ASYNC_HUP_NOTIFY)
return -EAGAIN;
else
return -ERESTARTSYS;
@@ -869,7 +856,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
if ((filp->f_flags & O_NONBLOCK) ||
(tty->flags & (1 << TTY_IO_ERROR))) {
pr_dbg("block_til_ready: non-block mode.\n");
- port->flags |= ASYNC_NORMAL_ACTIVE;
+ port->port.flags |= ASYNC_NORMAL_ACTIVE;
return 0;
}
@@ -879,26 +866,26 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
/* block waiting for DCD to be asserted, and while
callout dev is busy */
retval = 0;
- add_wait_queue(&port->open_wait, &wait);
+ add_wait_queue(&port->port.open_wait, &wait);
spin_lock_irqsave(&card->card_lock, flags);
if (!tty_hung_up_p(filp))
- port->count--;
- port->blocked_open++;
+ port->port.count--;
+ port->port.blocked_open++;
spin_unlock_irqrestore(&card->card_lock, flags);
while (1) {
raise_dtr_rts(port);
set_current_state(TASK_INTERRUPTIBLE);
- if (tty_hung_up_p(filp) || !(port->flags & ASYNC_INITIALIZED)) {
- if (port->flags & ASYNC_HUP_NOTIFY)
+ if (tty_hung_up_p(filp) || !(port->port.flags & ASYNC_INITIALIZED)) {
+ if (port->port.flags & ASYNC_HUP_NOTIFY)
retval = -EAGAIN;
else
retval = -ERESTARTSYS;
break;
}
- if (!(port->flags & ASYNC_CLOSING) &&
+ if (!(port->port.flags & ASYNC_CLOSING) &&
(do_clocal || (port->status & ISI_DCD))) {
break;
}
@@ -909,15 +896,15 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
schedule();
}
set_current_state(TASK_RUNNING);
- remove_wait_queue(&port->open_wait, &wait);
+ remove_wait_queue(&port->port.open_wait, &wait);
spin_lock_irqsave(&card->card_lock, flags);
if (!tty_hung_up_p(filp))
- port->count++;
- port->blocked_open--;
+ port->port.count++;
+ port->port.blocked_open--;
spin_unlock_irqrestore(&card->card_lock, flags);
if (retval)
return retval;
- port->flags |= ASYNC_NORMAL_ACTIVE;
+ port->port.flags |= ASYNC_NORMAL_ACTIVE;
return 0;
}
@@ -947,9 +934,9 @@ static int isicom_open(struct tty_struct *tty, struct file *filp)
isicom_setup_board(card);
- port->count++;
+ port->port.count++;
tty->driver_data = port;
- port->tty = tty;
+ port->port.tty = tty;
error = isicom_setup_port(port);
if (error == 0)
error = block_til_ready(tty, filp, port);
@@ -970,18 +957,15 @@ static void isicom_shutdown_port(struct isi_port *port)
struct isi_board *card = port->card;
struct tty_struct *tty;
- tty = port->tty;
+ tty = port->port.tty;
- if (!(port->flags & ASYNC_INITIALIZED))
+ if (!(port->port.flags & ASYNC_INITIALIZED))
return;
- if (port->xmit_buf) {
- free_page((unsigned long) port->xmit_buf);
- port->xmit_buf = NULL;
- }
- port->flags &= ~ASYNC_INITIALIZED;
+ tty_port_free_xmit_buf(&port->port);
+ port->port.flags &= ~ASYNC_INITIALIZED;
/* 3rd October 2000 : Vinayak P Risbud */
- port->tty = NULL;
+ port->port.tty = NULL;
/*Fix done by Anil .S on 30-04-2001
remote login through isi port has dtr toggle problem
@@ -1046,24 +1030,24 @@ static void isicom_close(struct tty_struct *tty, struct file *filp)
return;
}
- if (tty->count == 1 && port->count != 1) {
+ if (tty->count == 1 && port->port.count != 1) {
printk(KERN_WARNING "ISICOM:(0x%lx) isicom_close: bad port "
"count tty->count = 1 port count = %d.\n",
- card->base, port->count);
- port->count = 1;
+ card->base, port->port.count);
+ port->port.count = 1;
}
- if (--port->count < 0) {
+ if (--port->port.count < 0) {
printk(KERN_WARNING "ISICOM:(0x%lx) isicom_close: bad port "
"count for channel%d = %d", card->base, port->channel,
- port->count);
- port->count = 0;
+ port->port.count);
+ port->port.count = 0;
}
- if (port->count) {
+ if (port->port.count) {
spin_unlock_irqrestore(&card->card_lock, flags);
return;
}
- port->flags |= ASYNC_CLOSING;
+ port->port.flags |= ASYNC_CLOSING;
tty->closing = 1;
spin_unlock_irqrestore(&card->card_lock, flags);
@@ -1072,7 +1056,7 @@ static void isicom_close(struct tty_struct *tty, struct file *filp)
/* indicate to the card that no more data can be received
on this port */
spin_lock_irqsave(&card->card_lock, flags);
- if (port->flags & ASYNC_INITIALIZED) {
+ if (port->port.flags & ASYNC_INITIALIZED) {
card->port_status &= ~(1 << port->channel);
outw(card->port_status, card->base + 0x02);
}
@@ -1085,7 +1069,7 @@ static void isicom_close(struct tty_struct *tty, struct file *filp)
spin_lock_irqsave(&card->card_lock, flags);
tty->closing = 0;
- if (port->blocked_open) {
+ if (port->port.blocked_open) {
spin_unlock_irqrestore(&card->card_lock, flags);
if (port->close_delay) {
pr_dbg("scheduling until time out.\n");
@@ -1093,10 +1077,10 @@ static void isicom_close(struct tty_struct *tty, struct file *filp)
jiffies_to_msecs(port->close_delay));
}
spin_lock_irqsave(&card->card_lock, flags);
- wake_up_interruptible(&port->open_wait);
+ wake_up_interruptible(&port->port.open_wait);
}
- port->flags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_CLOSING);
- wake_up_interruptible(&port->close_wait);
+ port->port.flags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_CLOSING);
+ wake_up_interruptible(&port->port.close_wait);
spin_unlock_irqrestore(&card->card_lock, flags);
}
@@ -1112,9 +1096,6 @@ static int isicom_write(struct tty_struct *tty, const unsigned char *buf,
if (isicom_paranoia_check(port, tty->name, "isicom_write"))
return 0;
- if (!port->xmit_buf)
- return 0;
-
spin_lock_irqsave(&card->card_lock, flags);
while (1) {
@@ -1123,7 +1104,7 @@ static int isicom_write(struct tty_struct *tty, const unsigned char *buf,
if (cnt <= 0)
break;
- memcpy(port->xmit_buf + port->xmit_head, buf, cnt);
+ memcpy(port->port.xmit_buf + port->xmit_head, buf, cnt);
port->xmit_head = (port->xmit_head + cnt) & (SERIAL_XMIT_SIZE
- 1);
port->xmit_cnt += cnt;
@@ -1147,16 +1128,13 @@ static int isicom_put_char(struct tty_struct *tty, unsigned char ch)
if (isicom_paranoia_check(port, tty->name, "isicom_put_char"))
return 0;
- if (!port->xmit_buf)
- return 0;
-
spin_lock_irqsave(&card->card_lock, flags);
if (port->xmit_cnt >= SERIAL_XMIT_SIZE - 1) {
spin_unlock_irqrestore(&card->card_lock, flags);
return 0;
}
- port->xmit_buf[port->xmit_head++] = ch;
+ port->port.xmit_buf[port->xmit_head++] = ch;
port->xmit_head &= (SERIAL_XMIT_SIZE - 1);
port->xmit_cnt++;
spin_unlock_irqrestore(&card->card_lock, flags);
@@ -1172,7 +1150,7 @@ static void isicom_flush_chars(struct tty_struct *tty)
return;
if (port->xmit_cnt <= 0 || tty->stopped || tty->hw_stopped ||
- !port->xmit_buf)
+ !port->port.xmit_buf)
return;
/* this tells the transmitter to consider this port for
@@ -1274,23 +1252,23 @@ static int isicom_set_serial_info(struct isi_port *port,
lock_kernel();
- reconfig_port = ((port->flags & ASYNC_SPD_MASK) !=
+ reconfig_port = ((port->port.flags & ASYNC_SPD_MASK) !=
(newinfo.flags & ASYNC_SPD_MASK));
if (!capable(CAP_SYS_ADMIN)) {
if ((newinfo.close_delay != port->close_delay) ||
(newinfo.closing_wait != port->closing_wait) ||
((newinfo.flags & ~ASYNC_USR_MASK) !=
- (port->flags & ~ASYNC_USR_MASK))) {
+ (port->port.flags & ~ASYNC_USR_MASK))) {
unlock_kernel();
return -EPERM;
}
- port->flags = ((port->flags & ~ASYNC_USR_MASK) |
+ port->port.flags = ((port->port.flags & ~ASYNC_USR_MASK) |
(newinfo.flags & ASYNC_USR_MASK));
} else {
port->close_delay = newinfo.close_delay;
port->closing_wait = newinfo.closing_wait;
- port->flags = ((port->flags & ~ASYNC_FLAGS) |
+ port->port.flags = ((port->port.flags & ~ASYNC_FLAGS) |
(newinfo.flags & ASYNC_FLAGS));
}
if (reconfig_port) {
@@ -1314,7 +1292,7 @@ static int isicom_get_serial_info(struct isi_port *port,
out_info.line = port - isi_ports;
out_info.port = port->card->base;
out_info.irq = port->card->irq;
- out_info.flags = port->flags;
+ out_info.flags = port->port.flags;
/* out_info.baud_base = ? */
out_info.close_delay = port->close_delay;
out_info.closing_wait = port->closing_wait;
@@ -1454,10 +1432,10 @@ static void isicom_hangup(struct tty_struct *tty)
isicom_shutdown_port(port);
spin_unlock_irqrestore(&port->card->card_lock, flags);
- port->count = 0;
- port->flags &= ~ASYNC_NORMAL_ACTIVE;
- port->tty = NULL;
- wake_up_interruptible(&port->open_wait);
+ port->port.count = 0;
+ port->port.flags &= ~ASYNC_NORMAL_ACTIVE;
+ port->port.tty = NULL;
+ wake_up_interruptible(&port->port.open_wait);
}
@@ -1824,8 +1802,7 @@ static int __init isicom_init(void)
port->close_delay = 50 * HZ/100;
port->closing_wait = 3000 * HZ/100;
port->status = 0;
- init_waitqueue_head(&port->open_wait);
- init_waitqueue_head(&port->close_wait);
+ tty_port_init(&port->port);
/* . . . */
}
isi_card[idx].base = 0;
^ permalink raw reply related [flat|nested] 32+ messages in thread* [PATCH 05/20] moxa: use tty_port
2008-05-19 14:50 [PATCH 00/20] Implment a tty port structure and supporting logic Alan Cox
` (3 preceding siblings ...)
2008-05-19 14:50 ` [PATCH 04/20] isicom: " Alan Cox
@ 2008-05-19 14:50 ` Alan Cox
2008-05-19 14:50 ` [PATCH 06/20] mxser: " Alan Cox
` (16 subsequent siblings)
21 siblings, 0 replies; 32+ messages in thread
From: Alan Cox @ 2008-05-19 14:50 UTC (permalink / raw)
To: linux-kernel, akpm, greg
From: Alan Cox <alan@redhat.com>
Switch MOXA to use the new tty_port structure
---
drivers/char/moxa.c | 87 +++++++++++++++++++++++++--------------------------
1 files changed, 42 insertions(+), 45 deletions(-)
diff --git a/drivers/char/moxa.c b/drivers/char/moxa.c
index d57d3a6..bb9bcff 100644
--- a/drivers/char/moxa.c
+++ b/drivers/char/moxa.c
@@ -130,17 +130,14 @@ struct moxaq_str {
};
struct moxa_port {
+ struct tty_port port;
struct moxa_board_conf *board;
- struct tty_struct *tty;
void __iomem *tableAddr;
int type;
int close_delay;
- unsigned int count;
- int asyncflags;
int cflag;
unsigned long statusflags;
- wait_queue_head_t open_wait;
u8 DCDState;
u8 lineCtrl;
@@ -348,10 +345,10 @@ static int moxa_ioctl(struct tty_struct *tty, struct file *file,
if (status & 4)
tmp.dcd = 1;
- if (!p->tty || !p->tty->termios)
+ if (!p->port.tty || !p->port.tty->termios)
tmp.cflag = p->cflag;
else
- tmp.cflag = p->tty->termios->c_cflag;
+ tmp.cflag = p->port.tty->termios->c_cflag;
copy:
if (copy_to_user(argm, &tmp, sizeof(tmp))) {
mutex_unlock(&moxa_openlock);
@@ -828,7 +825,7 @@ static int moxa_init_board(struct moxa_board_conf *brd, struct device *dev)
p->type = PORT_16550A;
p->close_delay = 5 * HZ / 10;
p->cflag = B9600 | CS8 | CREAD | CLOCAL | HUPCL;
- init_waitqueue_head(&p->open_wait);
+ tty_port_init(&p->port);
}
switch (brd->boardType) {
@@ -884,12 +881,12 @@ static void moxa_board_deinit(struct moxa_board_conf *brd)
/* pci hot-un-plug support */
for (a = 0; a < brd->numPorts; a++)
- if (brd->ports[a].asyncflags & ASYNC_INITIALIZED)
- tty_hangup(brd->ports[a].tty);
+ if (brd->ports[a].port.flags & ASYNC_INITIALIZED)
+ tty_hangup(brd->ports[a].port.tty);
while (1) {
opened = 0;
for (a = 0; a < brd->numPorts; a++)
- if (brd->ports[a].asyncflags & ASYNC_INITIALIZED)
+ if (brd->ports[a].port.flags & ASYNC_INITIALIZED)
opened++;
mutex_unlock(&moxa_openlock);
if (!opened)
@@ -1104,9 +1101,9 @@ static void moxa_close_port(struct moxa_port *ch)
{
moxa_shut_down(ch);
MoxaPortFlushData(ch, 2);
- ch->asyncflags &= ~ASYNC_NORMAL_ACTIVE;
- ch->tty->driver_data = NULL;
- ch->tty = NULL;
+ ch->port.flags &= ~ASYNC_NORMAL_ACTIVE;
+ ch->port.tty->driver_data = NULL;
+ ch->port.tty = NULL;
}
static int moxa_block_till_ready(struct tty_struct *tty, struct file *filp,
@@ -1117,7 +1114,7 @@ static int moxa_block_till_ready(struct tty_struct *tty, struct file *filp,
u8 dcd;
while (1) {
- prepare_to_wait(&ch->open_wait, &wait, TASK_INTERRUPTIBLE);
+ prepare_to_wait(&ch->port.open_wait, &wait, TASK_INTERRUPTIBLE);
if (tty_hung_up_p(filp)) {
#ifdef SERIAL_DO_RESTART
retval = -ERESTARTSYS;
@@ -1138,7 +1135,7 @@ static int moxa_block_till_ready(struct tty_struct *tty, struct file *filp,
}
schedule();
}
- finish_wait(&ch->open_wait, &wait);
+ finish_wait(&ch->port.open_wait, &wait);
return retval;
}
@@ -1163,16 +1160,16 @@ static int moxa_open(struct tty_struct *tty, struct file *filp)
}
ch = &brd->ports[port % MAX_PORTS_PER_BOARD];
- ch->count++;
+ ch->port.count++;
tty->driver_data = ch;
- ch->tty = tty;
- if (!(ch->asyncflags & ASYNC_INITIALIZED)) {
+ ch->port.tty = tty;
+ if (!(ch->port.flags & ASYNC_INITIALIZED)) {
ch->statusflags = 0;
moxa_set_tty_param(tty, tty->termios);
MoxaPortLineCtrl(ch, 1, 1);
MoxaPortEnable(ch);
MoxaSetFifo(ch, ch->type == PORT_16550A);
- ch->asyncflags |= ASYNC_INITIALIZED;
+ ch->port.flags |= ASYNC_INITIALIZED;
}
mutex_unlock(&moxa_openlock);
@@ -1181,11 +1178,11 @@ static int moxa_open(struct tty_struct *tty, struct file *filp)
retval = moxa_block_till_ready(tty, filp, ch);
mutex_lock(&moxa_openlock);
if (retval) {
- if (ch->count) /* 0 means already hung up... */
- if (--ch->count == 0)
+ if (ch->port.count) /* 0 means already hung up... */
+ if (--ch->port.count == 0)
moxa_close_port(ch);
} else
- ch->asyncflags |= ASYNC_NORMAL_ACTIVE;
+ ch->port.flags |= ASYNC_NORMAL_ACTIVE;
mutex_unlock(&moxa_openlock);
return retval;
@@ -1204,21 +1201,21 @@ static void moxa_close(struct tty_struct *tty, struct file *filp)
ch = tty->driver_data;
if (ch == NULL)
goto unlock;
- if (tty->count == 1 && ch->count != 1) {
+ if (tty->count == 1 && ch->port.count != 1) {
printk(KERN_WARNING "moxa_close: bad serial port count; "
- "tty->count is 1, ch->count is %d\n", ch->count);
- ch->count = 1;
+ "tty->count is 1, ch->port.count is %d\n", ch->port.count);
+ ch->port.count = 1;
}
- if (--ch->count < 0) {
+ if (--ch->port.count < 0) {
printk(KERN_WARNING "moxa_close: bad serial port count, "
"device=%s\n", tty->name);
- ch->count = 0;
+ ch->port.count = 0;
}
- if (ch->count)
+ if (ch->port.count)
goto unlock;
ch->cflag = tty->termios->c_cflag;
- if (ch->asyncflags & ASYNC_INITIALIZED) {
+ if (ch->port.flags & ASYNC_INITIALIZED) {
moxa_setup_empty_event(tty);
tty_wait_until_sent(tty, 30 * HZ); /* 30 seconds timeout */
}
@@ -1374,7 +1371,7 @@ static void moxa_set_termios(struct tty_struct *tty,
return;
moxa_set_tty_param(tty, old_termios);
if (!(old_termios->c_cflag & CLOCAL) && C_CLOCAL(tty))
- wake_up_interruptible(&ch->open_wait);
+ wake_up_interruptible(&ch->port.open_wait);
}
static void moxa_stop(struct tty_struct *tty)
@@ -1412,20 +1409,20 @@ static void moxa_hangup(struct tty_struct *tty)
mutex_unlock(&moxa_openlock);
return;
}
- ch->count = 0;
+ ch->port.count = 0;
moxa_close_port(ch);
mutex_unlock(&moxa_openlock);
- wake_up_interruptible(&ch->open_wait);
+ wake_up_interruptible(&ch->port.open_wait);
}
static void moxa_new_dcdstate(struct moxa_port *p, u8 dcd)
{
dcd = !!dcd;
- if (dcd != p->DCDState && p->tty && C_CLOCAL(p->tty)) {
+ if (dcd != p->DCDState && p->port.tty && C_CLOCAL(p->port.tty)) {
if (!dcd)
- tty_hangup(p->tty);
+ tty_hangup(p->port.tty);
}
p->DCDState = dcd;
}
@@ -1433,9 +1430,9 @@ static void moxa_new_dcdstate(struct moxa_port *p, u8 dcd)
static int moxa_poll_port(struct moxa_port *p, unsigned int handle,
u16 __iomem *ip)
{
- struct tty_struct *tty = p->tty;
+ struct tty_struct *tty = p->port.tty;
void __iomem *ofsAddr;
- unsigned int inited = p->asyncflags & ASYNC_INITIALIZED;
+ unsigned int inited = p->port.flags & ASYNC_INITIALIZED;
u16 intr;
if (tty) {
@@ -1566,9 +1563,9 @@ static void moxa_setup_empty_event(struct tty_struct *tty)
static void moxa_shut_down(struct moxa_port *ch)
{
- struct tty_struct *tp = ch->tty;
+ struct tty_struct *tp = ch->port.tty;
- if (!(ch->asyncflags & ASYNC_INITIALIZED))
+ if (!(ch->port.flags & ASYNC_INITIALIZED))
return;
MoxaPortDisable(ch);
@@ -1580,7 +1577,7 @@ static void moxa_shut_down(struct moxa_port *ch)
MoxaPortLineCtrl(ch, 0, 0);
spin_lock_bh(&moxa_lock);
- ch->asyncflags &= ~ASYNC_INITIALIZED;
+ ch->port.flags &= ~ASYNC_INITIALIZED;
spin_unlock_bh(&moxa_lock);
}
@@ -1975,7 +1972,7 @@ static int MoxaPortWriteData(struct moxa_port *port,
c = (head > tail) ? (head - tail - 1) : (head - tail + tx_mask);
if (c > len)
c = len;
- moxaLog.txcnt[port->tty->index] += c;
+ moxaLog.txcnt[port->port.tty->index] += c;
total = c;
if (spage == epage) {
bufhead = readw(ofsAddr + Ofs_txb);
@@ -2017,7 +2014,7 @@ static int MoxaPortWriteData(struct moxa_port *port,
static int MoxaPortReadData(struct moxa_port *port)
{
- struct tty_struct *tty = port->tty;
+ struct tty_struct *tty = port->port.tty;
unsigned char *dst;
void __iomem *baseAddr, *ofsAddr, *ofs;
unsigned int count, len, total;
@@ -2124,8 +2121,8 @@ static int moxa_get_serial_info(struct moxa_port *info,
{
struct serial_struct tmp = {
.type = info->type,
- .line = info->tty->index,
- .flags = info->asyncflags,
+ .line = info->port.tty->index,
+ .flags = info->port.flags,
.baud_base = 921600,
.close_delay = info->close_delay
};
@@ -2148,13 +2145,13 @@ static int moxa_set_serial_info(struct moxa_port *info,
if (!capable(CAP_SYS_ADMIN)) {
if (((new_serial.flags & ~ASYNC_USR_MASK) !=
- (info->asyncflags & ~ASYNC_USR_MASK)))
+ (info->port.flags & ~ASYNC_USR_MASK)))
return -EPERM;
} else
info->close_delay = new_serial.close_delay * HZ / 100;
new_serial.flags = (new_serial.flags & ~ASYNC_FLAGS);
- new_serial.flags |= (info->asyncflags & ASYNC_FLAGS);
+ new_serial.flags |= (info->port.flags & ASYNC_FLAGS);
MoxaSetFifo(info, new_serial.type == PORT_16550A);
^ permalink raw reply related [flat|nested] 32+ messages in thread* [PATCH 06/20] mxser: use tty_port
2008-05-19 14:50 [PATCH 00/20] Implment a tty port structure and supporting logic Alan Cox
` (4 preceding siblings ...)
2008-05-19 14:50 ` [PATCH 05/20] moxa: " Alan Cox
@ 2008-05-19 14:50 ` Alan Cox
2008-05-19 14:50 ` [PATCH 07/20] riscom8: " Alan Cox
` (15 subsequent siblings)
21 siblings, 0 replies; 32+ messages in thread
From: Alan Cox @ 2008-05-19 14:50 UTC (permalink / raw)
To: linux-kernel, akpm, greg
From: Alan Cox <alan@redhat.com>
Switch mxser to use the new tty_port structure
---
drivers/char/mxser.c | 257 +++++++++++++++++++++++++-------------------------
1 files changed, 126 insertions(+), 131 deletions(-)
diff --git a/drivers/char/mxser.c b/drivers/char/mxser.c
index 4b81a85..e83ccee 100644
--- a/drivers/char/mxser.c
+++ b/drivers/char/mxser.c
@@ -222,8 +222,8 @@ struct mxser_mon_ext {
struct mxser_board;
struct mxser_port {
+ struct tty_port port;
struct mxser_board *board;
- struct tty_struct *tty;
unsigned long ioaddr;
unsigned long opmode_ioaddr;
@@ -234,7 +234,6 @@ struct mxser_port {
int rx_low_water;
int baud_base; /* max. speed */
int type; /* UART type */
- int flags; /* defined in tty.h */
int x_char; /* xon/xoff character */
int IER; /* Interrupt Enable Register */
@@ -249,15 +248,12 @@ struct mxser_port {
unsigned char err_shadow;
unsigned long event;
- int count; /* # of fd on device */
- int blocked_open; /* # of blocked opens */
struct async_icount icount; /* kernel counters for 4 input interrupts */
int timeout;
int read_status_mask;
int ignore_status_mask;
int xmit_fifo_size;
- unsigned char *xmit_buf;
int xmit_head;
int xmit_tail;
int xmit_cnt;
@@ -267,7 +263,6 @@ struct mxser_port {
struct mxser_mon mon_data;
spinlock_t slock;
- wait_queue_head_t open_wait;
wait_queue_head_t delta_msr_wait;
};
@@ -575,7 +570,7 @@ static int mxser_block_til_ready(struct tty_struct *tty, struct file *filp,
*/
if ((filp->f_flags & O_NONBLOCK) ||
test_bit(TTY_IO_ERROR, &tty->flags)) {
- port->flags |= ASYNC_NORMAL_ACTIVE;
+ port->port.flags |= ASYNC_NORMAL_ACTIVE;
return 0;
}
@@ -585,32 +580,32 @@ static int mxser_block_til_ready(struct tty_struct *tty, struct file *filp,
/*
* Block waiting for the carrier detect and the line to become
* free (i.e., not in use by the callout). While we are in
- * this loop, port->count is dropped by one, so that
+ * this loop, port->port.count is dropped by one, so that
* mxser_close() knows when to free things. We restore it upon
* exit, either normal or abnormal.
*/
retval = 0;
- add_wait_queue(&port->open_wait, &wait);
+ add_wait_queue(&port->port.open_wait, &wait);
spin_lock_irqsave(&port->slock, flags);
if (!tty_hung_up_p(filp))
- port->count--;
+ port->port.count--;
spin_unlock_irqrestore(&port->slock, flags);
- port->blocked_open++;
+ port->port.blocked_open++;
while (1) {
spin_lock_irqsave(&port->slock, flags);
outb(inb(port->ioaddr + UART_MCR) |
UART_MCR_DTR | UART_MCR_RTS, port->ioaddr + UART_MCR);
spin_unlock_irqrestore(&port->slock, flags);
set_current_state(TASK_INTERRUPTIBLE);
- if (tty_hung_up_p(filp) || !(port->flags & ASYNC_INITIALIZED)) {
- if (port->flags & ASYNC_HUP_NOTIFY)
+ if (tty_hung_up_p(filp) || !(port->port.flags & ASYNC_INITIALIZED)) {
+ if (port->port.flags & ASYNC_HUP_NOTIFY)
retval = -EAGAIN;
else
retval = -ERESTARTSYS;
break;
}
- if (!(port->flags & ASYNC_CLOSING) &&
+ if (!(port->port.flags & ASYNC_CLOSING) &&
(do_clocal ||
(inb(port->ioaddr + UART_MSR) & UART_MSR_DCD)))
break;
@@ -621,13 +616,13 @@ static int mxser_block_til_ready(struct tty_struct *tty, struct file *filp,
schedule();
}
set_current_state(TASK_RUNNING);
- remove_wait_queue(&port->open_wait, &wait);
+ remove_wait_queue(&port->port.open_wait, &wait);
if (!tty_hung_up_p(filp))
- port->count++;
- port->blocked_open--;
+ port->port.count++;
+ port->port.blocked_open--;
if (retval)
return retval;
- port->flags |= ASYNC_NORMAL_ACTIVE;
+ port->port.flags |= ASYNC_NORMAL_ACTIVE;
return 0;
}
@@ -636,7 +631,7 @@ static int mxser_set_baud(struct mxser_port *info, long newspd)
int quot = 0, baud;
unsigned char cval;
- if (!info->tty || !info->tty->termios)
+ if (!info->port.tty || !info->port.tty->termios)
return -1;
if (!(info->ioaddr))
@@ -647,13 +642,13 @@ static int mxser_set_baud(struct mxser_port *info, long newspd)
if (newspd == 134) {
quot = 2 * info->baud_base / 269;
- tty_encode_baud_rate(info->tty, 134, 134);
+ tty_encode_baud_rate(info->port.tty, 134, 134);
} else if (newspd) {
quot = info->baud_base / newspd;
if (quot == 0)
quot = 1;
baud = info->baud_base/quot;
- tty_encode_baud_rate(info->tty, baud, baud);
+ tty_encode_baud_rate(info->port.tty, baud, baud);
} else {
quot = 0;
}
@@ -679,7 +674,7 @@ static int mxser_set_baud(struct mxser_port *info, long newspd)
outb(cval, info->ioaddr + UART_LCR); /* reset DLAB */
#ifdef BOTHER
- if (C_BAUD(info->tty) == BOTHER) {
+ if (C_BAUD(info->port.tty) == BOTHER) {
quot = info->baud_base % newspd;
quot *= 8;
if (quot % newspd > newspd / 2) {
@@ -707,14 +702,14 @@ static int mxser_change_speed(struct mxser_port *info,
int ret = 0;
unsigned char status;
- if (!info->tty || !info->tty->termios)
+ if (!info->port.tty || !info->port.tty->termios)
return ret;
- cflag = info->tty->termios->c_cflag;
+ cflag = info->port.tty->termios->c_cflag;
if (!(info->ioaddr))
return ret;
- if (mxser_set_baud_method[info->tty->index] == 0)
- mxser_set_baud(info, tty_get_baud_rate(info->tty));
+ if (mxser_set_baud_method[info->port.tty->index] == 0)
+ mxser_set_baud(info, tty_get_baud_rate(info->port.tty));
/* byte size and parity */
switch (cflag & CSIZE) {
@@ -777,15 +772,15 @@ static int mxser_change_speed(struct mxser_port *info,
info->IER &= ~UART_IER_MSI;
info->MCR &= ~UART_MCR_AFE;
if (cflag & CRTSCTS) {
- info->flags |= ASYNC_CTS_FLOW;
+ info->port.flags |= ASYNC_CTS_FLOW;
info->IER |= UART_IER_MSI;
if ((info->type == PORT_16550A) || (info->board->chip_flag)) {
info->MCR |= UART_MCR_AFE;
} else {
status = inb(info->ioaddr + UART_MSR);
- if (info->tty->hw_stopped) {
+ if (info->port.tty->hw_stopped) {
if (status & UART_MSR_CTS) {
- info->tty->hw_stopped = 0;
+ info->port.tty->hw_stopped = 0;
if (info->type != PORT_16550A &&
!info->board->chip_flag) {
outb(info->IER & ~UART_IER_THRI,
@@ -795,11 +790,11 @@ static int mxser_change_speed(struct mxser_port *info,
outb(info->IER, info->ioaddr +
UART_IER);
}
- tty_wakeup(info->tty);
+ tty_wakeup(info->port.tty);
}
} else {
if (!(status & UART_MSR_CTS)) {
- info->tty->hw_stopped = 1;
+ info->port.tty->hw_stopped = 1;
if ((info->type != PORT_16550A) &&
(!info->board->chip_flag)) {
info->IER &= ~UART_IER_THRI;
@@ -810,13 +805,13 @@ static int mxser_change_speed(struct mxser_port *info,
}
}
} else {
- info->flags &= ~ASYNC_CTS_FLOW;
+ info->port.flags &= ~ASYNC_CTS_FLOW;
}
outb(info->MCR, info->ioaddr + UART_MCR);
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;
info->IER |= UART_IER_MSI;
}
outb(info->IER, info->ioaddr + UART_IER);
@@ -825,21 +820,21 @@ static int mxser_change_speed(struct mxser_port *info,
* Set up parity check flag
*/
info->read_status_mask = UART_LSR_OE | UART_LSR_THRE | UART_LSR_DR;
- if (I_INPCK(info->tty))
+ if (I_INPCK(info->port.tty))
info->read_status_mask |= UART_LSR_FE | UART_LSR_PE;
- if (I_BRKINT(info->tty) || I_PARMRK(info->tty))
+ if (I_BRKINT(info->port.tty) || I_PARMRK(info->port.tty))
info->read_status_mask |= UART_LSR_BI;
info->ignore_status_mask = 0;
- if (I_IGNBRK(info->tty)) {
+ if (I_IGNBRK(info->port.tty)) {
info->ignore_status_mask |= UART_LSR_BI;
info->read_status_mask |= UART_LSR_BI;
/*
* If we're ignore 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 |=
UART_LSR_OE |
UART_LSR_PE |
@@ -851,16 +846,16 @@ static int mxser_change_speed(struct mxser_port *info,
}
}
if (info->board->chip_flag) {
- mxser_set_must_xon1_value(info->ioaddr, START_CHAR(info->tty));
- mxser_set_must_xoff1_value(info->ioaddr, STOP_CHAR(info->tty));
- if (I_IXON(info->tty)) {
+ mxser_set_must_xon1_value(info->ioaddr, START_CHAR(info->port.tty));
+ mxser_set_must_xoff1_value(info->ioaddr, STOP_CHAR(info->port.tty));
+ if (I_IXON(info->port.tty)) {
mxser_enable_must_rx_software_flow_control(
info->ioaddr);
} else {
mxser_disable_must_rx_software_flow_control(
info->ioaddr);
}
- if (I_IXOFF(info->tty)) {
+ if (I_IXOFF(info->port.tty)) {
mxser_enable_must_tx_software_flow_control(
info->ioaddr);
} else {
@@ -890,15 +885,15 @@ static void mxser_check_modem_status(struct mxser_port *port, int status)
port->mon_data.modem_status = status;
wake_up_interruptible(&port->delta_msr_wait);
- if ((port->flags & ASYNC_CHECK_CD) && (status & UART_MSR_DDCD)) {
+ if ((port->port.flags & ASYNC_CHECK_CD) && (status & UART_MSR_DDCD)) {
if (status & UART_MSR_DCD)
- wake_up_interruptible(&port->open_wait);
+ wake_up_interruptible(&port->port.open_wait);
}
- if (port->flags & ASYNC_CTS_FLOW) {
- if (port->tty->hw_stopped) {
+ if (port->port.flags & ASYNC_CTS_FLOW) {
+ if (port->port.tty->hw_stopped) {
if (status & UART_MSR_CTS) {
- port->tty->hw_stopped = 0;
+ port->port.tty->hw_stopped = 0;
if ((port->type != PORT_16550A) &&
(!port->board->chip_flag)) {
@@ -908,11 +903,11 @@ static void mxser_check_modem_status(struct mxser_port *port, int status)
outb(port->IER, port->ioaddr +
UART_IER);
}
- tty_wakeup(port->tty);
+ tty_wakeup(port->port.tty);
}
} else {
if (!(status & UART_MSR_CTS)) {
- port->tty->hw_stopped = 1;
+ port->port.tty->hw_stopped = 1;
if (port->type != PORT_16550A &&
!port->board->chip_flag) {
port->IER &= ~UART_IER_THRI;
@@ -935,23 +930,23 @@ static int mxser_startup(struct mxser_port *info)
spin_lock_irqsave(&info->slock, flags);
- if (info->flags & ASYNC_INITIALIZED) {
+ if (info->port.flags & ASYNC_INITIALIZED) {
free_page(page);
spin_unlock_irqrestore(&info->slock, flags);
return 0;
}
if (!info->ioaddr || !info->type) {
- if (info->tty)
- set_bit(TTY_IO_ERROR, &info->tty->flags);
+ if (info->port.tty)
+ set_bit(TTY_IO_ERROR, &info->port.tty->flags);
free_page(page);
spin_unlock_irqrestore(&info->slock, flags);
return 0;
}
- if (info->xmit_buf)
+ if (info->port.xmit_buf)
free_page(page);
else
- info->xmit_buf = (unsigned char *) page;
+ info->port.xmit_buf = (unsigned char *) page;
/*
* Clear the FIFO buffers and disable them
@@ -973,8 +968,8 @@ static int mxser_startup(struct mxser_port *info)
if (inb(info->ioaddr + UART_LSR) == 0xff) {
spin_unlock_irqrestore(&info->slock, flags);
if (capable(CAP_SYS_ADMIN)) {
- if (info->tty)
- set_bit(TTY_IO_ERROR, &info->tty->flags);
+ if (info->port.tty)
+ set_bit(TTY_IO_ERROR, &info->port.tty->flags);
return 0;
} else
return -ENODEV;
@@ -1012,15 +1007,15 @@ static int mxser_startup(struct mxser_port *info)
(void) inb(info->ioaddr + UART_IIR);
(void) inb(info->ioaddr + UART_MSR);
- 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->xmit_cnt = info->xmit_head = info->xmit_tail = 0;
/*
* and set the speed of the serial port
*/
mxser_change_speed(info, NULL);
- info->flags |= ASYNC_INITIALIZED;
+ info->port.flags |= ASYNC_INITIALIZED;
spin_unlock_irqrestore(&info->slock, flags);
return 0;
@@ -1034,7 +1029,7 @@ static void mxser_shutdown(struct mxser_port *info)
{
unsigned long flags;
- if (!(info->flags & ASYNC_INITIALIZED))
+ if (!(info->port.flags & ASYNC_INITIALIZED))
return;
spin_lock_irqsave(&info->slock, flags);
@@ -1048,15 +1043,15 @@ static void mxser_shutdown(struct mxser_port *info)
/*
* Free the IRQ, if necessary
*/
- if (info->xmit_buf) {
- free_page((unsigned long) info->xmit_buf);
- info->xmit_buf = NULL;
+ if (info->port.xmit_buf) {
+ free_page((unsigned long) info->port.xmit_buf);
+ info->port.xmit_buf = NULL;
}
info->IER = 0;
outb(0x00, info->ioaddr + UART_IER);
- if (!info->tty || (info->tty->termios->c_cflag & HUPCL))
+ if (!info->port.tty || (info->port.tty->termios->c_cflag & HUPCL))
info->MCR &= ~(UART_MCR_DTR | UART_MCR_RTS);
outb(info->MCR, info->ioaddr + UART_MCR);
@@ -1072,10 +1067,10 @@ static void mxser_shutdown(struct mxser_port *info)
/* read data port to reset things */
(void) inb(info->ioaddr + UART_RX);
- 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;
if (info->board->chip_flag)
SET_MOXA_MUST_NO_SOFTWARE_FLOW_CONTROL(info->ioaddr);
@@ -1105,12 +1100,12 @@ static int mxser_open(struct tty_struct *tty, struct file *filp)
return -ENODEV;
tty->driver_data = info;
- info->tty = tty;
+ info->port.tty = tty;
/*
* Start up serial port
*/
spin_lock_irqsave(&info->slock, flags);
- info->count++;
+ info->port.count++;
spin_unlock_irqrestore(&info->slock, flags);
retval = mxser_startup(info);
if (retval)
@@ -1170,34 +1165,34 @@ static void mxser_close(struct tty_struct *tty, struct file *filp)
spin_unlock_irqrestore(&info->slock, flags);
return;
}
- if ((tty->count == 1) && (info->count != 1)) {
+ if ((tty->count == 1) && (info->port.count != 1)) {
/*
* Uh, oh. tty->count is 1, which means that the tty
- * structure will be freed. Info->count should always
+ * structure will be freed. Info->port.count should always
* be one in these conditions. If it's greater than
* one, we've got real problems, since it means the
* serial port won't be shutdown.
*/
printk(KERN_ERR "mxser_close: bad serial port count; "
- "tty->count is 1, info->count is %d\n", info->count);
- info->count = 1;
+ "tty->count is 1, info->port.count is %d\n", info->port.count);
+ info->port.count = 1;
}
- if (--info->count < 0) {
+ if (--info->port.count < 0) {
printk(KERN_ERR "mxser_close: bad serial port count for "
- "ttys%d: %d\n", tty->index, info->count);
- info->count = 0;
+ "ttys%d: %d\n", tty->index, info->port.count);
+ info->port.count = 0;
}
- if (info->count) {
+ if (info->port.count) {
spin_unlock_irqrestore(&info->slock, flags);
return;
}
- info->flags |= ASYNC_CLOSING;
+ info->port.flags |= ASYNC_CLOSING;
spin_unlock_irqrestore(&info->slock, flags);
/*
* Save the termios structure, since this port may have
* separate termios for callout and dialin.
*/
- if (info->flags & ASYNC_NORMAL_ACTIVE)
+ if (info->port.flags & ASYNC_NORMAL_ACTIVE)
info->normal_termios = *tty->termios;
/*
* Now we wait for the transmit buffer to clear; and we notify
@@ -1216,7 +1211,7 @@ static void mxser_close(struct tty_struct *tty, struct file *filp)
if (info->board->chip_flag)
info->IER &= ~MOXA_MUST_RECV_ISR;
- if (info->flags & ASYNC_INITIALIZED) {
+ if (info->port.flags & ASYNC_INITIALIZED) {
outb(info->IER, info->ioaddr + UART_IER);
/*
* Before we drop DTR, make sure the UART transmitter
@@ -1237,14 +1232,14 @@ static void mxser_close(struct tty_struct *tty, struct file *filp)
tty->closing = 0;
info->event = 0;
- info->tty = NULL;
- if (info->blocked_open) {
+ info->port.tty = NULL;
+ if (info->port.blocked_open) {
if (info->close_delay)
schedule_timeout_interruptible(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);
}
static int mxser_write(struct tty_struct *tty, const unsigned char *buf, int count)
@@ -1253,7 +1248,7 @@ static int mxser_write(struct tty_struct *tty, const unsigned char *buf, int cou
struct mxser_port *info = tty->driver_data;
unsigned long flags;
- if (!info->xmit_buf)
+ if (!info->port.xmit_buf)
return 0;
while (1) {
@@ -1262,7 +1257,7 @@ static int mxser_write(struct tty_struct *tty, const unsigned char *buf, int cou
if (c <= 0)
break;
- memcpy(info->xmit_buf + info->xmit_head, buf, c);
+ memcpy(info->port.xmit_buf + info->xmit_head, buf, c);
spin_lock_irqsave(&info->slock, flags);
info->xmit_head = (info->xmit_head + c) &
(SERIAL_XMIT_SIZE - 1);
@@ -1294,14 +1289,14 @@ static int mxser_put_char(struct tty_struct *tty, unsigned char ch)
struct mxser_port *info = tty->driver_data;
unsigned long flags;
- if (!info->xmit_buf)
+ if (!info->port.xmit_buf)
return 0;
if (info->xmit_cnt >= SERIAL_XMIT_SIZE - 1)
return 0;
spin_lock_irqsave(&info->slock, flags);
- info->xmit_buf[info->xmit_head++] = ch;
+ info->port.xmit_buf[info->xmit_head++] = ch;
info->xmit_head &= SERIAL_XMIT_SIZE - 1;
info->xmit_cnt++;
spin_unlock_irqrestore(&info->slock, flags);
@@ -1327,7 +1322,7 @@ static void mxser_flush_chars(struct tty_struct *tty)
if (info->xmit_cnt <= 0 ||
tty->stopped ||
- !info->xmit_buf ||
+ !info->port.xmit_buf ||
(tty->hw_stopped &&
(info->type != PORT_16550A) &&
(!info->board->chip_flag)
@@ -1370,10 +1365,10 @@ static int mxser_get_serial_info(struct mxser_port *info,
{
struct serial_struct tmp = {
.type = info->type,
- .line = info->tty->index,
+ .line = info->port.tty->index,
.port = info->ioaddr,
.irq = info->board->irq,
- .flags = info->flags,
+ .flags = info->port.flags,
.baud_base = info->baud_base,
.close_delay = info->close_delay,
.closing_wait = info->closing_wait,
@@ -1403,33 +1398,33 @@ static int mxser_set_serial_info(struct mxser_port *info,
new_serial.port != info->ioaddr)
return -EINVAL;
- flags = info->flags & ASYNC_SPD_MASK;
+ flags = info->port.flags & ASYNC_SPD_MASK;
if (!capable(CAP_SYS_ADMIN)) {
if ((new_serial.baud_base != info->baud_base) ||
(new_serial.close_delay != info->close_delay) ||
- ((new_serial.flags & ~ASYNC_USR_MASK) != (info->flags & ~ASYNC_USR_MASK)))
+ ((new_serial.flags & ~ASYNC_USR_MASK) != (info->port.flags & ~ASYNC_USR_MASK)))
return -EPERM;
- info->flags = ((info->flags & ~ASYNC_USR_MASK) |
+ info->port.flags = ((info->port.flags & ~ASYNC_USR_MASK) |
(new_serial.flags & ASYNC_USR_MASK));
} else {
/*
* OK, past this point, all the error checking has been done.
* At this point, we start making changes.....
*/
- info->flags = ((info->flags & ~ASYNC_FLAGS) |
+ info->port.flags = ((info->port.flags & ~ASYNC_FLAGS) |
(new_serial.flags & ASYNC_FLAGS));
info->close_delay = new_serial.close_delay * HZ / 100;
info->closing_wait = new_serial.closing_wait * HZ / 100;
- info->tty->low_latency =
- (info->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
- info->tty->low_latency = 0;
- if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST &&
+ info->port.tty->low_latency =
+ (info->port.flags & ASYNC_LOW_LATENCY) ? 1 : 0;
+ info->port.tty->low_latency = 0;
+ if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST &&
(new_serial.baud_base != info->baud_base ||
new_serial.custom_divisor !=
info->custom_divisor)) {
baud = new_serial.baud_base / new_serial.custom_divisor;
- tty_encode_baud_rate(info->tty, baud, baud);
+ tty_encode_baud_rate(info->port.tty, baud, baud);
}
}
@@ -1437,8 +1432,8 @@ static int mxser_set_serial_info(struct mxser_port *info,
process_txrx_fifo(info);
- if (info->flags & ASYNC_INITIALIZED) {
- if (flags != (info->flags & ASYNC_SPD_MASK)) {
+ if (info->port.flags & ASYNC_INITIALIZED) {
+ if (flags != (info->port.flags & ASYNC_SPD_MASK)) {
spin_lock_irqsave(&info->slock, sl_flags);
mxser_change_speed(info, NULL);
spin_unlock_irqrestore(&info->slock, sl_flags);
@@ -1693,12 +1688,12 @@ static int mxser_ioctl_special(unsigned int cmd, void __user *argp)
continue;
}
- if (!port->tty || !port->tty->termios)
+ if (!port->port.tty || !port->port.tty->termios)
GMStatus[i].cflag =
port->normal_termios.c_cflag;
else
GMStatus[i].cflag =
- port->tty->termios->c_cflag;
+ port->port.tty->termios->c_cflag;
status = inb(port->ioaddr + UART_MSR);
if (status & 0x80 /*UART_MSR_DCD */ )
@@ -1755,14 +1750,14 @@ static int mxser_ioctl_special(unsigned int cmd, void __user *argp)
mon_data_ext.modem_status[i] =
port->mon_data.modem_status;
mon_data_ext.baudrate[i] =
- tty_get_baud_rate(port->tty);
+ tty_get_baud_rate(port->port.tty);
- if (!port->tty || !port->tty->termios) {
+ if (!port->port.tty || !port->port.tty->termios) {
cflag = port->normal_termios.c_cflag;
iflag = port->normal_termios.c_iflag;
} else {
- cflag = port->tty->termios->c_cflag;
- iflag = port->tty->termios->c_iflag;
+ cflag = port->port.tty->termios->c_cflag;
+ iflag = port->port.tty->termios->c_iflag;
}
mon_data_ext.databits[i] = cflag & CSIZE;
@@ -1989,7 +1984,7 @@ static int mxser_ioctl(struct tty_struct *tty, struct file *file,
else
info->mon_data.hold_reason |= NPPI_NOTIFY_XOFFXENT;
- if (info->tty->hw_stopped)
+ if (info->port.tty->hw_stopped)
info->mon_data.hold_reason |= NPPI_NOTIFY_CTSHOLD;
else
info->mon_data.hold_reason &= ~NPPI_NOTIFY_CTSHOLD;
@@ -2038,7 +2033,7 @@ static void mxser_stoprx(struct tty_struct *tty)
}
}
- if (info->tty->termios->c_cflag & CRTSCTS) {
+ if (info->port.tty->termios->c_cflag & CRTSCTS) {
info->MCR &= ~UART_MCR_RTS;
outb(info->MCR, info->ioaddr + UART_MCR);
}
@@ -2075,7 +2070,7 @@ static void mxser_unthrottle(struct tty_struct *tty)
}
}
- if (info->tty->termios->c_cflag & CRTSCTS) {
+ if (info->port.tty->termios->c_cflag & CRTSCTS) {
info->MCR |= UART_MCR_RTS;
outb(info->MCR, info->ioaddr + UART_MCR);
}
@@ -2106,7 +2101,7 @@ static void mxser_start(struct tty_struct *tty)
unsigned long flags;
spin_lock_irqsave(&info->slock, flags);
- if (info->xmit_cnt && info->xmit_buf) {
+ if (info->xmit_cnt && info->port.xmit_buf) {
outb(info->IER & ~UART_IER_THRI, info->ioaddr + UART_IER);
info->IER |= UART_IER_THRI;
outb(info->IER, info->ioaddr + UART_IER);
@@ -2220,10 +2215,10 @@ static void mxser_hangup(struct tty_struct *tty)
mxser_flush_buffer(tty);
mxser_shutdown(info);
info->event = 0;
- info->count = 0;
- info->flags &= ~ASYNC_NORMAL_ACTIVE;
- info->tty = NULL;
- wake_up_interruptible(&info->open_wait);
+ info->port.count = 0;
+ info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
+ info->port.tty = NULL;
+ wake_up_interruptible(&info->port.open_wait);
}
/*
@@ -2246,7 +2241,7 @@ static void mxser_rs_break(struct tty_struct *tty, int break_state)
static void mxser_receive_chars(struct mxser_port *port, int *status)
{
- struct tty_struct *tty = port->tty;
+ struct tty_struct *tty = port->port.tty;
unsigned char ch, gdl;
int ignored = 0;
int cnt = 0;
@@ -2302,7 +2297,7 @@ intr_old:
flag = TTY_BREAK;
port->icount.brk++;
- if (port->flags & ASYNC_SAK)
+ if (port->port.flags & ASYNC_SAK)
do_SAK(tty);
} else if (*status & UART_LSR_PE) {
flag = TTY_PARITY;
@@ -2333,7 +2328,7 @@ intr_old:
} while (*status & UART_LSR_DR);
end_intr:
- mxvar_log.rxcnt[port->tty->index] += cnt;
+ mxvar_log.rxcnt[port->port.tty->index] += cnt;
port->mon_data.rxcnt += cnt;
port->mon_data.up_rxcnt += cnt;
@@ -2354,18 +2349,18 @@ static void mxser_transmit_chars(struct mxser_port *port)
if (port->x_char) {
outb(port->x_char, port->ioaddr + UART_TX);
port->x_char = 0;
- mxvar_log.txcnt[port->tty->index]++;
+ mxvar_log.txcnt[port->port.tty->index]++;
port->mon_data.txcnt++;
port->mon_data.up_txcnt++;
port->icount.tx++;
return;
}
- if (port->xmit_buf == NULL)
+ if (port->port.xmit_buf == NULL)
return;
- if ((port->xmit_cnt <= 0) || port->tty->stopped ||
- (port->tty->hw_stopped &&
+ if ((port->xmit_cnt <= 0) || port->port.tty->stopped ||
+ (port->port.tty->hw_stopped &&
(port->type != PORT_16550A) &&
(!port->board->chip_flag))) {
port->IER &= ~UART_IER_THRI;
@@ -2376,20 +2371,20 @@ static void mxser_transmit_chars(struct mxser_port *port)
cnt = port->xmit_cnt;
count = port->xmit_fifo_size;
do {
- outb(port->xmit_buf[port->xmit_tail++],
+ outb(port->port.xmit_buf[port->xmit_tail++],
port->ioaddr + UART_TX);
port->xmit_tail = port->xmit_tail & (SERIAL_XMIT_SIZE - 1);
if (--port->xmit_cnt <= 0)
break;
} while (--count > 0);
- mxvar_log.txcnt[port->tty->index] += (cnt - port->xmit_cnt);
+ mxvar_log.txcnt[port->port.tty->index] += (cnt - port->xmit_cnt);
port->mon_data.txcnt += (cnt - port->xmit_cnt);
port->mon_data.up_txcnt += (cnt - port->xmit_cnt);
port->icount.tx += (cnt - port->xmit_cnt);
if (port->xmit_cnt < WAKEUP_CHARS)
- tty_wakeup(port->tty);
+ tty_wakeup(port->port.tty);
if (port->xmit_cnt <= 0) {
port->IER &= ~UART_IER_THRI;
@@ -2440,9 +2435,9 @@ static irqreturn_t mxser_interrupt(int irq, void *dev_id)
if (iir & UART_IIR_NO_INT)
break;
iir &= MOXA_MUST_IIR_MASK;
- if (!port->tty ||
- (port->flags & ASYNC_CLOSING) ||
- !(port->flags &
+ if (!port->port.tty ||
+ (port->port.flags & ASYNC_CLOSING) ||
+ !(port->port.flags &
ASYNC_INITIALIZED)) {
status = inb(port->ioaddr + UART_LSR);
outb(0x27, port->ioaddr + UART_FCR);
@@ -2558,7 +2553,7 @@ static int __devinit mxser_initbrd(struct mxser_board *brd,
if (brd->chip_flag != MOXA_OTHER_UART)
mxser_enable_must_enchance_mode(info->ioaddr);
- info->flags = ASYNC_SHARE_IRQ;
+ info->port.flags = ASYNC_SHARE_IRQ;
info->type = brd->uart_type;
process_txrx_fifo(info);
@@ -2567,7 +2562,7 @@ static int __devinit mxser_initbrd(struct mxser_board *brd,
info->close_delay = 5 * HZ / 10;
info->closing_wait = 30 * HZ;
info->normal_termios = mxvar_sdriver->init_termios;
- init_waitqueue_head(&info->open_wait);
+ tty_port_init(&info->port);
init_waitqueue_head(&info->delta_msr_wait);
memset(&info->mon_data, 0, sizeof(struct mxser_mon));
info->err_shadow = 0;
^ permalink raw reply related [flat|nested] 32+ messages in thread* [PATCH 07/20] riscom8: use tty_port
2008-05-19 14:50 [PATCH 00/20] Implment a tty port structure and supporting logic Alan Cox
` (5 preceding siblings ...)
2008-05-19 14:50 ` [PATCH 06/20] mxser: " Alan Cox
@ 2008-05-19 14:50 ` Alan Cox
2008-05-19 14:50 ` [PATCH 08/20] rocket: " Alan Cox
` (14 subsequent siblings)
21 siblings, 0 replies; 32+ messages in thread
From: Alan Cox @ 2008-05-19 14:50 UTC (permalink / raw)
To: linux-kernel, akpm, greg
From: Alan Cox <alan@redhat.com>
Switch riscom8 to use the new tty_port structure
---
drivers/char/riscom8.c | 145 ++++++++++++++++++++++--------------------------
drivers/char/riscom8.h | 8 ---
2 files changed, 68 insertions(+), 85 deletions(-)
diff --git a/drivers/char/riscom8.c b/drivers/char/riscom8.c
index f073c71..b0ba241 100644
--- a/drivers/char/riscom8.c
+++ b/drivers/char/riscom8.c
@@ -322,7 +322,7 @@ static struct riscom_port *rc_get_port(struct riscom_board const *bp,
channel = rc_in(bp, CD180_GICR) >> GICR_CHAN_OFF;
if (channel < CD180_NCH) {
port = &rc_port[board_No(bp) * RC_NPORT + channel];
- if (port->flags & ASYNC_INITIALIZED)
+ if (port->port.flags & ASYNC_INITIALIZED)
return port;
}
printk(KERN_ERR "rc%d: %s interrupt from invalid port %d\n",
@@ -341,7 +341,7 @@ static void rc_receive_exc(struct riscom_board const *bp)
if (port == NULL)
return;
- tty = port->tty;
+ tty = port->port.tty;
#ifdef RC_REPORT_OVERRUN
status = rc_in(bp, CD180_RCSR);
@@ -364,7 +364,7 @@ static void rc_receive_exc(struct riscom_board const *bp)
printk(KERN_INFO "rc%d: port %d: Handling break...\n",
board_No(bp), port_No(port));
flag = TTY_BREAK;
- if (port->flags & ASYNC_SAK)
+ if (port->port.flags & ASYNC_SAK)
do_SAK(tty);
} else if (status & RCSR_PE)
@@ -392,7 +392,7 @@ static void rc_receive(struct riscom_board const *bp)
if (port == NULL)
return;
- tty = port->tty;
+ tty = port->port.tty;
count = rc_in(bp, CD180_RDCR);
@@ -422,7 +422,7 @@ static void rc_transmit(struct riscom_board const *bp)
if (port == NULL)
return;
- tty = port->tty;
+ tty = port->port.tty;
if (port->IER & IER_TXEMPTY) {
/* FIFO drained */
@@ -467,7 +467,7 @@ static void rc_transmit(struct riscom_board const *bp)
count = CD180_NFIFO;
do {
- rc_out(bp, CD180_TDR, port->xmit_buf[port->xmit_tail++]);
+ rc_out(bp, CD180_TDR, port->port.xmit_buf[port->xmit_tail++]);
port->xmit_tail = port->xmit_tail & (SERIAL_XMIT_SIZE-1);
if (--port->xmit_cnt <= 0)
break;
@@ -492,12 +492,12 @@ static void rc_check_modem(struct riscom_board const *bp)
if (port == NULL)
return;
- tty = port->tty;
+ tty = port->port.tty;
mcr = rc_in(bp, CD180_MCR);
if (mcr & MCR_CDCHG) {
if (rc_in(bp, CD180_MSVR) & MSVR_CD)
- wake_up_interruptible(&port->open_wait);
+ wake_up_interruptible(&port->port.open_wait);
else
tty_hangup(tty);
}
@@ -632,7 +632,7 @@ static void rc_shutdown_board(struct riscom_board *bp)
*/
static void rc_change_speed(struct riscom_board *bp, struct riscom_port *port)
{
- struct tty_struct *tty = port->tty;
+ struct tty_struct *tty = port->port.tty;
unsigned long baud;
long tmp;
unsigned char cor1 = 0, cor3 = 0;
@@ -786,28 +786,21 @@ static int rc_setup_port(struct riscom_board *bp, struct riscom_port *port)
{
unsigned long flags;
- if (port->flags & ASYNC_INITIALIZED)
+ if (port->port.flags & ASYNC_INITIALIZED)
return 0;
- if (!port->xmit_buf) {
- /* We may sleep in get_zeroed_page() */
- unsigned long tmp = get_zeroed_page(GFP_KERNEL);
- if (tmp == 0)
- return -ENOMEM;
- if (port->xmit_buf)
- free_page(tmp);
- else
- port->xmit_buf = (unsigned char *) tmp;
- }
+ if (tty_port_alloc_xmit_buf(&port->port) < 0)
+ return -ENOMEM;
+
spin_lock_irqsave(&riscom_lock, flags);
- if (port->tty)
- clear_bit(TTY_IO_ERROR, &port->tty->flags);
- if (port->count == 1)
+ if (port->port.tty)
+ clear_bit(TTY_IO_ERROR, &port->port.tty->flags);
+ if (port->port.count == 1)
bp->count++;
port->xmit_cnt = port->xmit_head = port->xmit_tail = 0;
rc_change_speed(bp, port);
- port->flags |= ASYNC_INITIALIZED;
+ port->port.flags |= ASYNC_INITIALIZED;
spin_unlock_irqrestore(&riscom_lock, flags);
return 0;
@@ -818,7 +811,7 @@ static void rc_shutdown_port(struct riscom_board *bp, struct riscom_port *port)
{
struct tty_struct *tty;
- if (!(port->flags & ASYNC_INITIALIZED))
+ if (!(port->port.flags & ASYNC_INITIALIZED))
return;
#ifdef RC_REPORT_OVERRUN
@@ -836,12 +829,9 @@ static void rc_shutdown_port(struct riscom_board *bp, struct riscom_port *port)
printk("].\n");
}
#endif
- if (port->xmit_buf) {
- free_page((unsigned long) port->xmit_buf);
- port->xmit_buf = NULL;
- }
+ tty_port_free_xmit_buf(&port->port);
- tty = port->tty;
+ tty = port->port.tty;
if (tty == NULL || C_HUPCL(tty)) {
/* Drop DTR */
@@ -860,7 +850,7 @@ static void rc_shutdown_port(struct riscom_board *bp, struct riscom_port *port)
if (tty)
set_bit(TTY_IO_ERROR, &tty->flags);
- port->flags &= ~ASYNC_INITIALIZED;
+ port->port.flags &= ~ASYNC_INITIALIZED;
if (--bp->count < 0) {
printk(KERN_INFO "rc%d: rc_shutdown_port: "
@@ -890,9 +880,9 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
* If the device is in the middle of being closed, then block
* until it's done, and then try again.
*/
- if (tty_hung_up_p(filp) || port->flags & ASYNC_CLOSING) {
- interruptible_sleep_on(&port->close_wait);
- if (port->flags & ASYNC_HUP_NOTIFY)
+ if (tty_hung_up_p(filp) || port->port.flags & ASYNC_CLOSING) {
+ interruptible_sleep_on(&port->port.close_wait);
+ if (port->port.flags & ASYNC_HUP_NOTIFY)
return -EAGAIN;
else
return -ERESTARTSYS;
@@ -904,7 +894,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
*/
if ((filp->f_flags & O_NONBLOCK) ||
(tty->flags & (1 << TTY_IO_ERROR))) {
- port->flags |= ASYNC_NORMAL_ACTIVE;
+ port->port.flags |= ASYNC_NORMAL_ACTIVE;
return 0;
}
@@ -919,16 +909,16 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
* exit, either normal or abnormal.
*/
retval = 0;
- add_wait_queue(&port->open_wait, &wait);
+ add_wait_queue(&port->port.open_wait, &wait);
spin_lock_irqsave(&riscom_lock, flags);
if (!tty_hung_up_p(filp))
- port->count--;
+ port->port.count--;
spin_unlock_irqrestore(&riscom_lock, flags);
- port->blocked_open++;
+ port->port.blocked_open++;
while (1) {
spin_lock_irqsave(&riscom_lock, flags);
@@ -942,14 +932,14 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
set_current_state(TASK_INTERRUPTIBLE);
if (tty_hung_up_p(filp) ||
- !(port->flags & ASYNC_INITIALIZED)) {
- if (port->flags & ASYNC_HUP_NOTIFY)
+ !(port->port.flags & ASYNC_INITIALIZED)) {
+ if (port->port.flags & ASYNC_HUP_NOTIFY)
retval = -EAGAIN;
else
retval = -ERESTARTSYS;
break;
}
- if (!(port->flags & ASYNC_CLOSING) &&
+ if (!(port->port.flags & ASYNC_CLOSING) &&
(do_clocal || CD))
break;
if (signal_pending(current)) {
@@ -959,14 +949,14 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
schedule();
}
__set_current_state(TASK_RUNNING);
- remove_wait_queue(&port->open_wait, &wait);
+ remove_wait_queue(&port->port.open_wait, &wait);
if (!tty_hung_up_p(filp))
- port->count++;
- port->blocked_open--;
+ port->port.count++;
+ port->port.blocked_open--;
if (retval)
return retval;
- port->flags |= ASYNC_NORMAL_ACTIVE;
+ port->port.flags |= ASYNC_NORMAL_ACTIVE;
return 0;
}
@@ -990,9 +980,9 @@ static int rc_open(struct tty_struct *tty, struct file *filp)
if (error)
return error;
- port->count++;
+ port->port.count++;
tty->driver_data = port;
- port->tty = tty;
+ port->port.tty = tty;
error = rc_setup_port(bp, port);
if (error == 0)
@@ -1031,21 +1021,21 @@ static void rc_close(struct tty_struct *tty, struct file *filp)
goto out;
bp = port_Board(port);
- if ((tty->count == 1) && (port->count != 1)) {
+ if ((tty->count == 1) && (port->port.count != 1)) {
printk(KERN_INFO "rc%d: rc_close: bad port count;"
" tty->count is 1, port count is %d\n",
- board_No(bp), port->count);
- port->count = 1;
+ board_No(bp), port->port.count);
+ port->port.count = 1;
}
- if (--port->count < 0) {
+ if (--port->port.count < 0) {
printk(KERN_INFO "rc%d: rc_close: bad port count "
"for tty%d: %d\n",
- board_No(bp), port_No(port), port->count);
- port->count = 0;
+ board_No(bp), port_No(port), port->port.count);
+ port->port.count = 0;
}
- if (port->count)
+ if (port->port.count)
goto out;
- port->flags |= ASYNC_CLOSING;
+ port->port.flags |= ASYNC_CLOSING;
/*
* Now we wait for the transmit buffer to clear; and we notify
* the line discipline to only process XON/XOFF characters.
@@ -1060,7 +1050,7 @@ static void rc_close(struct tty_struct *tty, struct file *filp)
* line status register.
*/
port->IER &= ~IER_RXD;
- if (port->flags & ASYNC_INITIALIZED) {
+ if (port->port.flags & ASYNC_INITIALIZED) {
port->IER &= ~IER_TXRDY;
port->IER |= IER_TXEMPTY;
rc_out(bp, CD180_CAR, port_No(port));
@@ -1082,14 +1072,14 @@ static void rc_close(struct tty_struct *tty, struct file *filp)
tty_ldisc_flush(tty);
tty->closing = 0;
- port->tty = NULL;
- if (port->blocked_open) {
+ port->port.tty = NULL;
+ if (port->port.blocked_open) {
if (port->close_delay)
msleep_interruptible(jiffies_to_msecs(port->close_delay));
- wake_up_interruptible(&port->open_wait);
+ wake_up_interruptible(&port->port.open_wait);
}
- port->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
- wake_up_interruptible(&port->close_wait);
+ port->port.flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
+ wake_up_interruptible(&port->port.close_wait);
out:
spin_unlock_irqrestore(&riscom_lock, flags);
@@ -1108,7 +1098,7 @@ static int rc_write(struct tty_struct *tty,
bp = port_Board(port);
- if (!tty || !port->xmit_buf)
+ if (!tty || !port->port.xmit_buf)
return 0;
while (1) {
@@ -1119,7 +1109,7 @@ static int rc_write(struct tty_struct *tty,
if (c <= 0)
break; /* lock continues to be held */
- memcpy(port->xmit_buf + port->xmit_head, buf, c);
+ memcpy(port->port.xmit_buf + port->xmit_head, buf, c);
port->xmit_head = (port->xmit_head + c) & (SERIAL_XMIT_SIZE-1);
port->xmit_cnt += c;
@@ -1151,7 +1141,7 @@ static int rc_put_char(struct tty_struct *tty, unsigned char ch)
if (rc_paranoia_check(port, tty->name, "rc_put_char"))
return 0;
- if (!tty || !port->xmit_buf)
+ if (!tty || !port->port.xmit_buf)
return 0;
spin_lock_irqsave(&riscom_lock, flags);
@@ -1159,7 +1149,7 @@ static int rc_put_char(struct tty_struct *tty, unsigned char ch)
if (port->xmit_cnt >= SERIAL_XMIT_SIZE - 1)
goto out;
- port->xmit_buf[port->xmit_head++] = ch;
+ port->port.xmit_buf[port->xmit_head++] = ch;
port->xmit_head &= SERIAL_XMIT_SIZE - 1;
port->xmit_cnt++;
ret = 1;
@@ -1178,7 +1168,7 @@ static void rc_flush_chars(struct tty_struct *tty)
return;
if (port->xmit_cnt <= 0 || tty->stopped || tty->hw_stopped ||
- !port->xmit_buf)
+ !port->port.xmit_buf)
return;
spin_lock_irqsave(&riscom_lock, flags);
@@ -1317,19 +1307,19 @@ static int rc_set_serial_info(struct riscom_port *port,
return -EINVAL;
#endif
- change_speed = ((port->flags & ASYNC_SPD_MASK) !=
+ change_speed = ((port->port.flags & ASYNC_SPD_MASK) !=
(tmp.flags & ASYNC_SPD_MASK));
if (!capable(CAP_SYS_ADMIN)) {
if ((tmp.close_delay != port->close_delay) ||
(tmp.closing_wait != port->closing_wait) ||
((tmp.flags & ~ASYNC_USR_MASK) !=
- (port->flags & ~ASYNC_USR_MASK)))
+ (port->port.flags & ~ASYNC_USR_MASK)))
return -EPERM;
- port->flags = ((port->flags & ~ASYNC_USR_MASK) |
+ port->port.flags = ((port->port.flags & ~ASYNC_USR_MASK) |
(tmp.flags & ASYNC_USR_MASK));
} else {
- port->flags = ((port->flags & ~ASYNC_FLAGS) |
+ port->port.flags = ((port->port.flags & ~ASYNC_FLAGS) |
(tmp.flags & ASYNC_FLAGS));
port->close_delay = tmp.close_delay;
port->closing_wait = tmp.closing_wait;
@@ -1355,7 +1345,7 @@ static int rc_get_serial_info(struct riscom_port *port,
tmp.line = port - rc_port;
tmp.port = bp->base;
tmp.irq = bp->irq;
- tmp.flags = port->flags;
+ tmp.flags = port->port.flags;
tmp.baud_base = (RC_OSCFREQ + CD180_TPC/2) / CD180_TPC;
tmp.close_delay = port->close_delay * HZ/100;
tmp.closing_wait = port->closing_wait * HZ/100;
@@ -1480,7 +1470,7 @@ static void rc_start(struct tty_struct *tty)
spin_lock_irqsave(&riscom_lock, flags);
- if (port->xmit_cnt && port->xmit_buf && !(port->IER & IER_TXRDY)) {
+ if (port->xmit_cnt && port->port.xmit_buf && !(port->IER & IER_TXRDY)) {
port->IER |= IER_TXRDY;
rc_out(bp, CD180_CAR, port_No(port));
rc_out(bp, CD180_IER, port->IER);
@@ -1499,10 +1489,10 @@ static void rc_hangup(struct tty_struct *tty)
bp = port_Board(port);
rc_shutdown_port(bp, port);
- port->count = 0;
- port->flags &= ~ASYNC_NORMAL_ACTIVE;
- port->tty = NULL;
- wake_up_interruptible(&port->open_wait);
+ port->port.count = 0;
+ port->port.flags &= ~ASYNC_NORMAL_ACTIVE;
+ port->port.tty = NULL;
+ wake_up_interruptible(&port->port.open_wait);
}
static void rc_set_termios(struct tty_struct *tty,
@@ -1578,8 +1568,7 @@ static int __init rc_init_drivers(void)
rc_port[i].magic = RISCOM8_MAGIC;
rc_port[i].close_delay = 50 * HZ / 100;
rc_port[i].closing_wait = 3000 * HZ / 100;
- init_waitqueue_head(&rc_port[i].open_wait);
- init_waitqueue_head(&rc_port[i].close_wait);
+ tty_port_init(&rc_port[i].port);
}
return 0;
}
diff --git a/drivers/char/riscom8.h b/drivers/char/riscom8.h
index cdfdf43..29ddbab 100644
--- a/drivers/char/riscom8.h
+++ b/drivers/char/riscom8.h
@@ -66,20 +66,14 @@ struct riscom_board {
struct riscom_port {
int magic;
+ struct tty_port port;
int baud_base;
- int flags;
- struct tty_struct * tty;
- int count;
- int blocked_open;
int timeout;
int close_delay;
- unsigned char * xmit_buf;
int custom_divisor;
int xmit_head;
int xmit_tail;
int xmit_cnt;
- wait_queue_head_t open_wait;
- wait_queue_head_t close_wait;
short wakeup_chars;
short break_length;
unsigned short closing_wait;
^ permalink raw reply related [flat|nested] 32+ messages in thread* [PATCH 08/20] rocket: use tty_port
2008-05-19 14:50 [PATCH 00/20] Implment a tty port structure and supporting logic Alan Cox
` (6 preceding siblings ...)
2008-05-19 14:50 ` [PATCH 07/20] riscom8: " Alan Cox
@ 2008-05-19 14:50 ` Alan Cox
2008-05-19 14:50 ` [PATCH 09/20] synclink: " Alan Cox
` (13 subsequent siblings)
21 siblings, 0 replies; 32+ messages in thread
From: Alan Cox @ 2008-05-19 14:50 UTC (permalink / raw)
To: linux-kernel, akpm, greg
From: Alan Cox <alan@redhat.com>
Switch the rocketport to use the new tty_port structure
---
drivers/char/rocket.c | 116 +++++++++++++++++++++++----------------------
drivers/char/rocket_int.h | 9 +--
2 files changed, 61 insertions(+), 64 deletions(-)
diff --git a/drivers/char/rocket.c b/drivers/char/rocket.c
index 743dc80..ab04adb 100644
--- a/drivers/char/rocket.c
+++ b/drivers/char/rocket.c
@@ -434,15 +434,15 @@ static void rp_do_transmit(struct r_port *info)
#endif
if (!info)
return;
- if (!info->tty) {
+ if (!info->port.tty) {
printk(KERN_WARNING "rp: WARNING %s called with "
- "info->tty==NULL\n", __func__);
+ "info->port.tty==NULL\n", __func__);
clear_bit((info->aiop * 8) + info->chan, (void *) &xmit_flags[info->board]);
return;
}
spin_lock_irqsave(&info->slock, flags);
- tty = info->tty;
+ tty = info->port.tty;
info->xmit_fifo_room = TXFIFO_SIZE - sGetTxCnt(cp);
/* Loop sending data to FIFO until done or FIFO full */
@@ -502,13 +502,13 @@ static void rp_handle_port(struct r_port *info)
"info->flags & NOT_INIT\n");
return;
}
- if (!info->tty) {
+ if (!info->port.tty) {
printk(KERN_WARNING "rp: WARNING: rp_handle_port called with "
- "info->tty==NULL\n");
+ "info->port.tty==NULL\n");
return;
}
cp = &info->channel;
- tty = info->tty;
+ tty = info->port.tty;
IntMask = sGetChanIntID(cp) & info->intmask;
#ifdef ROCKET_DEBUG_INTR
@@ -530,7 +530,7 @@ static void rp_handle_port(struct r_port *info)
tty_hangup(tty);
}
info->cd_status = (ChanStatus & CD_ACT) ? 1 : 0;
- wake_up_interruptible(&info->open_wait);
+ wake_up_interruptible(&info->port.open_wait);
}
#ifdef ROCKET_DEBUG_INTR
if (IntMask & DELTA_CTS) { /* CTS change */
@@ -650,7 +650,7 @@ static void init_r_port(int board, int aiop, int chan, struct pci_dev *pci_dev)
info->chan = chan;
info->closing_wait = 3000;
info->close_delay = 50;
- init_waitqueue_head(&info->open_wait);
+ init_waitqueue_head(&info->port.open_wait);
init_completion(&info->close_wait);
info->flags &= ~ROCKET_MODE_MASK;
switch (pc104[board][line]) {
@@ -717,7 +717,7 @@ static void configure_r_port(struct r_port *info,
unsigned rocketMode;
int bits, baud, divisor;
CHANNEL_t *cp;
- struct ktermios *t = info->tty->termios;
+ struct ktermios *t = info->port.tty->termios;
cp = &info->channel;
cflag = t->c_cflag;
@@ -750,7 +750,7 @@ static void configure_r_port(struct r_port *info,
}
/* baud rate */
- baud = tty_get_baud_rate(info->tty);
+ baud = tty_get_baud_rate(info->port.tty);
if (!baud)
baud = 9600;
divisor = ((rp_baud_base[info->board] + (baud >> 1)) / baud) - 1;
@@ -768,7 +768,7 @@ static void configure_r_port(struct r_port *info,
sSetBaud(cp, divisor);
/* FIXME: Should really back compute a baud rate from the divisor */
- tty_encode_baud_rate(info->tty, baud, baud);
+ tty_encode_baud_rate(info->port.tty, baud, baud);
if (cflag & CRTSCTS) {
info->intmask |= DELTA_CTS;
@@ -793,15 +793,15 @@ static void configure_r_port(struct r_port *info,
* Handle software flow control in the board
*/
#ifdef ROCKET_SOFT_FLOW
- if (I_IXON(info->tty)) {
+ if (I_IXON(info->port.tty)) {
sEnTxSoftFlowCtl(cp);
- if (I_IXANY(info->tty)) {
+ if (I_IXANY(info->port.tty)) {
sEnIXANY(cp);
} else {
sDisIXANY(cp);
}
- sSetTxXONChar(cp, START_CHAR(info->tty));
- sSetTxXOFFChar(cp, STOP_CHAR(info->tty));
+ sSetTxXONChar(cp, START_CHAR(info->port.tty));
+ sSetTxXOFFChar(cp, STOP_CHAR(info->port.tty));
} else {
sDisTxSoftFlowCtl(cp);
sDisIXANY(cp);
@@ -813,24 +813,24 @@ static void configure_r_port(struct r_port *info,
* Set up ignore/read mask words
*/
info->read_status_mask = STMRCVROVRH | 0xFF;
- if (I_INPCK(info->tty))
+ if (I_INPCK(info->port.tty))
info->read_status_mask |= STMFRAMEH | STMPARITYH;
- if (I_BRKINT(info->tty) || I_PARMRK(info->tty))
+ if (I_BRKINT(info->port.tty) || I_PARMRK(info->port.tty))
info->read_status_mask |= STMBREAKH;
/*
* Characters to ignore
*/
info->ignore_status_mask = 0;
- if (I_IGNPAR(info->tty))
+ if (I_IGNPAR(info->port.tty))
info->ignore_status_mask |= STMFRAMEH | STMPARITYH;
- if (I_IGNBRK(info->tty)) {
+ if (I_IGNBRK(info->port.tty)) {
info->ignore_status_mask |= STMBREAKH;
/*
* If we're 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 |= STMRCVROVRH;
}
@@ -863,7 +863,7 @@ static void configure_r_port(struct r_port *info,
}
}
-/* info->count is considered critical, protected by spinlocks. */
+/* info->port.count is considered critical, protected by spinlocks. */
static int block_til_ready(struct tty_struct *tty, struct file *filp,
struct r_port *info)
{
@@ -897,13 +897,13 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
/*
* Block waiting for the carrier detect and the line to become free. While we are in
- * this loop, info->count is dropped by one, so that rp_close() knows when to free things.
+ * this loop, info->port.count is dropped by one, so that rp_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);
#ifdef ROCKET_DEBUG_OPEN
- printk(KERN_INFO "block_til_ready before block: ttyR%d, count = %d\n", info->line, info->count);
+ printk(KERN_INFO "block_til_ready before block: ttyR%d, count = %d\n", info->line, info->port.count);
#endif
spin_lock_irqsave(&info->slock, flags);
@@ -912,10 +912,10 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
#else
if (!tty_hung_up_p(filp)) {
extra_count = 1;
- info->count--;
+ info->port.count--;
}
#endif
- info->blocked_open++;
+ info->port.blocked_open++;
spin_unlock_irqrestore(&info->slock, flags);
@@ -940,24 +940,24 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
}
#ifdef ROCKET_DEBUG_OPEN
printk(KERN_INFO "block_til_ready blocking: ttyR%d, count = %d, flags=0x%0x\n",
- info->line, info->count, info->flags);
+ info->line, info->port.count, info->flags);
#endif
schedule(); /* Don't hold spinlock here, will hang PC */
}
__set_current_state(TASK_RUNNING);
- remove_wait_queue(&info->open_wait, &wait);
+ remove_wait_queue(&info->port.open_wait, &wait);
spin_lock_irqsave(&info->slock, flags);
if (extra_count)
- info->count++;
- info->blocked_open--;
+ info->port.count++;
+ info->port.blocked_open--;
spin_unlock_irqrestore(&info->slock, flags);
#ifdef ROCKET_DEBUG_OPEN
printk(KERN_INFO "block_til_ready after blocking: ttyR%d, count = %d\n",
- info->line, info->count);
+ info->line, info->port.count);
#endif
if (retval)
return retval;
@@ -1001,9 +1001,9 @@ static int rp_open(struct tty_struct *tty, struct file *filp)
info->xmit_buf = (unsigned char *) page;
tty->driver_data = info;
- info->tty = tty;
+ info->port.tty = tty;
- if (info->count++ == 0) {
+ if (info->port.count++ == 0) {
atomic_inc(&rp_num_ports_open);
#ifdef ROCKET_DEBUG_OPEN
@@ -1012,7 +1012,7 @@ static int rp_open(struct tty_struct *tty, struct file *filp)
#endif
}
#ifdef ROCKET_DEBUG_OPEN
- printk(KERN_INFO "rp_open ttyR%d, count=%d\n", info->line, info->count);
+ printk(KERN_INFO "rp_open ttyR%d, count=%d\n", info->line, info->port.count);
#endif
/*
@@ -1048,13 +1048,13 @@ static int rp_open(struct tty_struct *tty, struct file *filp)
* Set up the tty->alt_speed kludge
*/
if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_HI)
- info->tty->alt_speed = 57600;
+ info->port.tty->alt_speed = 57600;
if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_VHI)
- info->tty->alt_speed = 115200;
+ info->port.tty->alt_speed = 115200;
if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_SHI)
- info->tty->alt_speed = 230400;
+ info->port.tty->alt_speed = 230400;
if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_WARP)
- info->tty->alt_speed = 460800;
+ info->port.tty->alt_speed = 460800;
configure_r_port(info, NULL);
if (tty->termios->c_cflag & CBAUD) {
@@ -1076,7 +1076,7 @@ static int rp_open(struct tty_struct *tty, struct file *filp)
}
/*
- * Exception handler that closes a serial port. info->count is considered critical.
+ * Exception handler that closes a serial port. info->port.count is considered critical.
*/
static void rp_close(struct tty_struct *tty, struct file *filp)
{
@@ -1089,14 +1089,14 @@ static void rp_close(struct tty_struct *tty, struct file *filp)
return;
#ifdef ROCKET_DEBUG_OPEN
- printk(KERN_INFO "rp_close ttyR%d, count = %d\n", info->line, info->count);
+ printk(KERN_INFO "rp_close ttyR%d, count = %d\n", info->line, info->port.count);
#endif
if (tty_hung_up_p(filp))
return;
spin_lock_irqsave(&info->slock, flags);
- if ((tty->count == 1) && (info->count != 1)) {
+ if ((tty->count == 1) && (info->port.count != 1)) {
/*
* Uh, oh. tty->count is 1, which means that the tty
* structure will be freed. Info->count should always
@@ -1105,15 +1105,15 @@ static void rp_close(struct tty_struct *tty, struct file *filp)
* serial port won't be shutdown.
*/
printk(KERN_WARNING "rp_close: bad serial port count; "
- "tty->count is 1, info->count is %d\n", info->count);
- info->count = 1;
+ "tty->count is 1, info->port.count is %d\n", info->port.count);
+ info->port.count = 1;
}
- if (--info->count < 0) {
+ if (--info->port.count < 0) {
printk(KERN_WARNING "rp_close: bad serial port count for "
- "ttyR%d: %d\n", info->line, info->count);
- info->count = 0;
+ "ttyR%d: %d\n", info->line, info->port.count);
+ info->port.count = 0;
}
- if (info->count) {
+ if (info->port.count) {
spin_unlock_irqrestore(&info->slock, flags);
return;
}
@@ -1167,11 +1167,11 @@ static void rp_close(struct tty_struct *tty, struct file *filp)
clear_bit((info->aiop * 8) + info->chan, (void *) &xmit_flags[info->board]);
- 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);
} else {
if (info->xmit_buf) {
free_page((unsigned long) info->xmit_buf);
@@ -1357,13 +1357,13 @@ static int set_config(struct r_port *info, struct rocket_config __user *new_info
info->closing_wait = new_serial.closing_wait;
if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_HI)
- info->tty->alt_speed = 57600;
+ info->port.tty->alt_speed = 57600;
if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_VHI)
- info->tty->alt_speed = 115200;
+ info->port.tty->alt_speed = 115200;
if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_SHI)
- info->tty->alt_speed = 230400;
+ info->port.tty->alt_speed = 230400;
if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_WARP)
- info->tty->alt_speed = 460800;
+ info->port.tty->alt_speed = 460800;
configure_r_port(info, NULL);
return 0;
@@ -1636,13 +1636,13 @@ static void rp_hangup(struct tty_struct *tty)
rp_flush_buffer(tty);
if (info->flags & ROCKET_CLOSING)
return;
- if (info->count)
+ if (info->port.count)
atomic_dec(&rp_num_ports_open);
clear_bit((info->aiop * 8) + info->chan, (void *) &xmit_flags[info->board]);
- info->count = 0;
+ info->port.count = 0;
info->flags &= ~ROCKET_NORMAL_ACTIVE;
- info->tty = NULL;
+ info->port.tty = NULL;
cp = &info->channel;
sDisRxFIFO(cp);
@@ -1653,7 +1653,7 @@ static void rp_hangup(struct tty_struct *tty)
sClrTxXOFF(cp);
info->flags &= ~ROCKET_INITIALIZED;
- wake_up_interruptible(&info->open_wait);
+ wake_up_interruptible(&info->port.open_wait);
}
/*
@@ -1762,7 +1762,7 @@ static int rp_write(struct tty_struct *tty,
/* Write remaining data into the port's xmit_buf */
while (1) {
- if (!info->tty) /* Seemingly obligatory check... */
+ if (!info->port.tty) /* Seemingly obligatory check... */
goto end;
c = min(count, XMIT_BUF_SIZE - info->xmit_cnt - 1);
c = min(c, XMIT_BUF_SIZE - info->xmit_head);
diff --git a/drivers/char/rocket_int.h b/drivers/char/rocket_int.h
index 143cc43..3affc48 100644
--- a/drivers/char/rocket_int.h
+++ b/drivers/char/rocket_int.h
@@ -1125,11 +1125,9 @@ Warnings: This function writes the data byte without checking to see if
struct r_port {
int magic;
+ struct tty_port port;
int line;
- int flags;
- int count;
- int blocked_open;
- struct tty_struct *tty;
+ int flags; /* Don't yet match the ASY_ flags!! */
unsigned int board:3;
unsigned int aiop:2;
unsigned int chan:3;
@@ -1148,8 +1146,7 @@ struct r_port {
int read_status_mask;
int cps;
- wait_queue_head_t open_wait;
- struct completion close_wait;
+ struct completion close_wait; /* Not yet matching the core */
spinlock_t slock;
struct mutex write_mtx;
};
^ permalink raw reply related [flat|nested] 32+ messages in thread* [PATCH 09/20] synclink: use tty_port
2008-05-19 14:50 [PATCH 00/20] Implment a tty port structure and supporting logic Alan Cox
` (7 preceding siblings ...)
2008-05-19 14:50 ` [PATCH 08/20] rocket: " Alan Cox
@ 2008-05-19 14:50 ` Alan Cox
2008-05-19 14:51 ` [PATCH 10/20] esp: " Alan Cox
` (12 subsequent siblings)
21 siblings, 0 replies; 32+ messages in thread
From: Alan Cox @ 2008-05-19 14:50 UTC (permalink / raw)
To: linux-kernel, akpm, greg
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(¶ms, &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, ¶ms, 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;
}
^ permalink raw reply related [flat|nested] 32+ messages in thread* [PATCH 10/20] esp: use tty_port
2008-05-19 14:50 [PATCH 00/20] Implment a tty port structure and supporting logic Alan Cox
` (8 preceding siblings ...)
2008-05-19 14:50 ` [PATCH 09/20] synclink: " Alan Cox
@ 2008-05-19 14:51 ` Alan Cox
2008-05-19 14:51 ` [PATCH 11/20] istallion: " Alan Cox
` (11 subsequent siblings)
21 siblings, 0 replies; 32+ messages in thread
From: Alan Cox @ 2008-05-19 14:51 UTC (permalink / raw)
To: linux-kernel, akpm, greg
From: Alan Cox <alan@redhat.com>
Switch esp to use the new tty_port structures
---
drivers/char/esp.c | 272 +++++++++++++++++++++++-----------------------
include/linux/hayesesp.h | 9 --
2 files changed, 138 insertions(+), 143 deletions(-)
diff --git a/drivers/char/esp.c b/drivers/char/esp.c
index 84840ba..2eaf09f 100644
--- a/drivers/char/esp.c
+++ b/drivers/char/esp.c
@@ -128,9 +128,9 @@ static struct tty_driver *esp_driver;
#if defined(MODULE) && defined(SERIAL_DEBUG_MCOUNT)
#define DBG_CNT(s) printk(KERN_DEBUG "(%s): [%x] refc=%d, serc=%d, ttyc=%d -> %s\n", \
- tty->name, info->flags, \
+ tty->name, info->port.flags, \
serial_driver.refcount, \
- info->count, tty->count, s)
+ info->port.count, tty->count, s)
#else
#define DBG_CNT(s)
#endif
@@ -172,13 +172,13 @@ static inline int serial_paranoia_check(struct esp_struct *info,
static inline unsigned int serial_in(struct esp_struct *info, int offset)
{
- return inb(info->port + offset);
+ return inb(info->io_port + offset);
}
static inline void serial_out(struct esp_struct *info, int offset,
unsigned char value)
{
- outb(value, info->port+offset);
+ outb(value, info->io_port+offset);
}
/*
@@ -273,7 +273,7 @@ static inline void release_pio_buffer(struct esp_pio_buffer *buf)
static inline void receive_chars_pio(struct esp_struct *info, int num_bytes)
{
- struct tty_struct *tty = info->tty;
+ struct tty_struct *tty = info->port.tty;
int i;
struct esp_pio_buffer *pio_buf;
struct esp_pio_buffer *err_buf;
@@ -295,7 +295,7 @@ static inline void receive_chars_pio(struct esp_struct *info, int num_bytes)
for (i = 0; i < num_bytes - 1; i += 2) {
*((unsigned short *)(pio_buf->data + i)) =
- inw(info->port + UART_ESI_RX);
+ inw(info->io_port + UART_ESI_RX);
err_buf->data[i] = serial_in(info, UART_ESI_RWS);
err_buf->data[i + 1] = (err_buf->data[i] >> 3) & status_mask;
err_buf->data[i] &= status_mask;
@@ -308,7 +308,7 @@ static inline void receive_chars_pio(struct esp_struct *info, int num_bytes)
}
/* make sure everything is still ok since interrupts were enabled */
- tty = info->tty;
+ tty = info->port.tty;
if (!tty) {
release_pio_buffer(pio_buf);
@@ -325,7 +325,7 @@ static inline void receive_chars_pio(struct esp_struct *info, int num_bytes)
if (err_buf->data[i] & 0x04) {
flag = TTY_BREAK;
- if (info->flags & ASYNC_SAK)
+ if (info->port.flags & ASYNC_SAK)
do_SAK(tty);
} else if (err_buf->data[i] & 0x02)
flag = TTY_FRAME;
@@ -370,7 +370,7 @@ static void receive_chars_dma(struct esp_struct *info, int num_bytes)
static inline void receive_chars_dma_done(struct esp_struct *info,
int status)
{
- struct tty_struct *tty = info->tty;
+ struct tty_struct *tty = info->port.tty;
int num_bytes;
unsigned long flags;
@@ -396,7 +396,7 @@ static inline void receive_chars_dma_done(struct esp_struct *info,
if (status & 0x10) {
statflag = TTY_BREAK;
(info->icount.brk)++;
- if (info->flags & ASYNC_SAK)
+ if (info->port.flags & ASYNC_SAK)
do_SAK(tty);
} else if (status & 0x08) {
statflag = TTY_FRAME;
@@ -451,7 +451,7 @@ static inline void transmit_chars_pio(struct esp_struct *info,
for (i = 0; i < space_avail - 1; i += 2) {
outw(*((unsigned short *)(pio_buf->data + i)),
- info->port + UART_ESI_TX);
+ info->io_port + UART_ESI_TX);
}
if (space_avail & 0x0001)
@@ -470,8 +470,8 @@ static inline void transmit_chars_pio(struct esp_struct *info,
}
if (info->xmit_cnt < WAKEUP_CHARS) {
- if (info->tty)
- tty_wakeup(info->tty);
+ if (info->port.tty)
+ tty_wakeup(info->port.tty);
#ifdef SERIAL_DEBUG_INTR
printk("THRE...");
@@ -507,8 +507,8 @@ static inline void transmit_chars_dma(struct esp_struct *info, int num_bytes)
info->xmit_tail = (info->xmit_tail + dma_bytes) & (ESP_XMIT_SIZE - 1);
if (info->xmit_cnt < WAKEUP_CHARS) {
- if (info->tty)
- tty_wakeup(info->tty);
+ if (info->port.tty)
+ tty_wakeup(info->port.tty);
#ifdef SERIAL_DEBUG_INTR
printk("THRE...");
@@ -575,18 +575,18 @@ static void check_modem_status(struct esp_struct *info)
wake_up_interruptible(&info->delta_msr_wait);
}
- if ((info->flags & ASYNC_CHECK_CD) && (status & UART_MSR_DDCD)) {
+ if ((info->port.flags & ASYNC_CHECK_CD) && (status & UART_MSR_DDCD)) {
#if (defined(SERIAL_DEBUG_OPEN) || defined(SERIAL_DEBUG_INTR))
printk("ttys%d CD now %s...", info->line,
(status & UART_MSR_DCD) ? "on" : "off");
#endif
if (status & UART_MSR_DCD)
- wake_up_interruptible(&info->open_wait);
+ wake_up_interruptible(&info->port.open_wait);
else {
#ifdef SERIAL_DEBUG_OPEN
printk("scheduling hangup...");
#endif
- tty_hangup(info->tty);
+ tty_hangup(info->port.tty);
}
}
}
@@ -609,7 +609,7 @@ static irqreturn_t rs_interrupt_single(int irq, void *dev_id)
spin_lock(&info->lock);
- if (!info->tty) {
+ if (!info->port.tty) {
spin_unlock(&info->lock);
return IRQ_NONE;
}
@@ -647,7 +647,7 @@ static irqreturn_t rs_interrupt_single(int irq, void *dev_id)
num_bytes = serial_in(info, UART_ESI_STAT1) << 8;
num_bytes |= serial_in(info, UART_ESI_STAT2);
- num_bytes = tty_buffer_request_room(info->tty, num_bytes);
+ num_bytes = tty_buffer_request_room(info->port.tty, num_bytes);
if (num_bytes) {
if (dma_bytes ||
@@ -661,7 +661,7 @@ static irqreturn_t rs_interrupt_single(int irq, void *dev_id)
if (!(info->stat_flags & (ESP_STAT_DMA_RX | ESP_STAT_DMA_TX)) &&
(scratch & 0x02) && (info->IER & UART_IER_THRI)) {
- if ((info->xmit_cnt <= 0) || info->tty->stopped) {
+ if ((info->xmit_cnt <= 0) || info->port.tty->stopped) {
info->IER &= ~UART_IER_THRI;
serial_out(info, UART_ESI_CMD1, ESI_SET_SRV_MASK);
serial_out(info, UART_ESI_CMD2, info->IER);
@@ -782,7 +782,7 @@ static int startup(struct esp_struct *info)
spin_lock_irqsave(&info->lock, flags);
- if (info->flags & ASYNC_INITIALIZED)
+ if (info->port.flags & ASYNC_INITIALIZED)
goto out;
if (!info->xmit_buf) {
@@ -806,7 +806,7 @@ static int startup(struct esp_struct *info)
num_chars |= serial_in(info, UART_ESI_STAT2);
while (num_chars > 1) {
- inw(info->port + UART_ESI_RX);
+ inw(info->io_port + UART_ESI_RX);
num_chars -= 2;
}
@@ -834,9 +834,9 @@ static int startup(struct esp_struct *info)
if (retval) {
if (capable(CAP_SYS_ADMIN)) {
- if (info->tty)
+ if (info->port.tty)
set_bit(TTY_IO_ERROR,
- &info->tty->flags);
+ &info->port.tty->flags);
retval = 0;
}
goto out_unlocked;
@@ -874,30 +874,30 @@ static int startup(struct esp_struct *info)
serial_out(info, UART_ESI_CMD1, ESI_SET_SRV_MASK);
serial_out(info, UART_ESI_CMD2, info->IER);
- 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->xmit_cnt = info->xmit_head = info->xmit_tail = 0;
spin_unlock_irqrestore(&info->lock, flags);
/*
* Set up the tty->alt_speed kludge
*/
- if (info->tty) {
- if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
- info->tty->alt_speed = 57600;
- if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
- info->tty->alt_speed = 115200;
- if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
- info->tty->alt_speed = 230400;
- if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
- info->tty->alt_speed = 460800;
+ if (info->port.tty) {
+ if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
+ info->port.tty->alt_speed = 57600;
+ if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
+ info->port.tty->alt_speed = 115200;
+ if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
+ info->port.tty->alt_speed = 230400;
+ if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
+ info->port.tty->alt_speed = 460800;
}
/*
* set the speed of the serial port
*/
change_speed(info);
- info->flags |= ASYNC_INITIALIZED;
+ info->port.flags |= ASYNC_INITIALIZED;
return 0;
out:
@@ -914,7 +914,7 @@ static void shutdown(struct esp_struct *info)
{
unsigned long flags, f;
- if (!(info->flags & ASYNC_INITIALIZED))
+ if (!(info->port.flags & ASYNC_INITIALIZED))
return;
#ifdef SERIAL_DEBUG_OPEN
@@ -951,7 +951,7 @@ static void shutdown(struct esp_struct *info)
while (current_port) {
if ((current_port != info) &&
- (current_port->flags & ASYNC_INITIALIZED))
+ (current_port->port.flags & ASYNC_INITIALIZED))
break;
current_port = current_port->next_port;
@@ -974,7 +974,7 @@ static void shutdown(struct esp_struct *info)
serial_out(info, UART_ESI_CMD1, ESI_SET_SRV_MASK);
serial_out(info, UART_ESI_CMD2, 0x00);
- if (!info->tty || (info->tty->termios->c_cflag & HUPCL))
+ if (!info->port.tty || (info->port.tty->termios->c_cflag & HUPCL))
info->MCR &= ~(UART_MCR_DTR|UART_MCR_RTS);
info->MCR &= ~UART_MCR_OUT2;
@@ -982,10 +982,10 @@ static void shutdown(struct esp_struct *info)
serial_out(info, UART_ESI_CMD2, UART_MCR);
serial_out(info, UART_ESI_CMD2, info->MCR);
- 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;
spin_unlock_irqrestore(&info->lock, flags);
}
@@ -1002,10 +1002,10 @@ static void change_speed(struct esp_struct *info)
unsigned char flow1 = 0, flow2 = 0;
unsigned long flags;
- if (!info->tty || !info->tty->termios)
+ if (!info->port.tty || !info->port.tty->termios)
return;
- cflag = info->tty->termios->c_cflag;
- port = info->port;
+ cflag = info->port.tty->termios->c_cflag;
+ port = info->io_port;
/* byte size and parity */
switch (cflag & CSIZE) {
@@ -1029,9 +1029,9 @@ static void change_speed(struct esp_struct *info)
if (cflag & CMSPAR)
cval |= UART_LCR_SPAR;
#endif
- baud = tty_get_baud_rate(info->tty);
+ baud = tty_get_baud_rate(info->port.tty);
if (baud == 38400 &&
- ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST))
+ ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST))
quot = info->custom_divisor;
else {
if (baud == 134) /* Special case since 134 is really 134.5 */
@@ -1046,49 +1046,49 @@ static void change_speed(struct esp_struct *info)
if (baud) {
/* Actual rate */
baud = BASE_BAUD/quot;
- tty_encode_baud_rate(info->tty, baud, baud);
+ tty_encode_baud_rate(info->port.tty, baud, baud);
}
info->timeout = ((1024 * HZ * bits * quot) / BASE_BAUD) + (HZ / 50);
/* CTS flow control flag and modem status interrupts */
/* info->IER &= ~UART_IER_MSI; */
if (cflag & CRTSCTS) {
- info->flags |= ASYNC_CTS_FLOW;
+ info->port.flags |= ASYNC_CTS_FLOW;
/* info->IER |= UART_IER_MSI; */
flow1 = 0x04;
flow2 = 0x10;
} 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;
/*
* Set up parity check flag
*/
info->read_status_mask = UART_LSR_OE | UART_LSR_THRE | UART_LSR_DR;
- if (I_INPCK(info->tty))
+ if (I_INPCK(info->port.tty))
info->read_status_mask |= UART_LSR_FE | UART_LSR_PE;
- if (I_BRKINT(info->tty) || I_PARMRK(info->tty))
+ if (I_BRKINT(info->port.tty) || I_PARMRK(info->port.tty))
info->read_status_mask |= UART_LSR_BI;
info->ignore_status_mask = 0;
#if 0
/* This should be safe, but for some broken bits of hardware... */
- if (I_IGNPAR(info->tty)) {
+ if (I_IGNPAR(info->port.tty)) {
info->ignore_status_mask |= UART_LSR_PE | UART_LSR_FE;
info->read_status_mask |= UART_LSR_PE | UART_LSR_FE;
}
#endif
- if (I_IGNBRK(info->tty)) {
+ if (I_IGNBRK(info->port.tty)) {
info->ignore_status_mask |= UART_LSR_BI;
info->read_status_mask |= UART_LSR_BI;
/*
* If we're ignore 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 |= UART_LSR_OE | \
UART_LSR_PE | UART_LSR_FE;
info->read_status_mask |= UART_LSR_OE | \
@@ -1096,7 +1096,7 @@ static void change_speed(struct esp_struct *info)
}
}
- if (I_IXOFF(info->tty))
+ if (I_IXOFF(info->port.tty))
flow1 |= 0x81;
spin_lock_irqsave(&info->lock, flags);
@@ -1116,10 +1116,10 @@ static void change_speed(struct esp_struct *info)
serial_out(info, UART_ESI_CMD2, flow2);
/* set flow control characters (XON/XOFF only) */
- if (I_IXOFF(info->tty)) {
+ if (I_IXOFF(info->port.tty)) {
serial_out(info, UART_ESI_CMD1, ESI_SET_FLOW_CHARS);
- serial_out(info, UART_ESI_CMD2, START_CHAR(info->tty));
- serial_out(info, UART_ESI_CMD2, STOP_CHAR(info->tty));
+ serial_out(info, UART_ESI_CMD2, START_CHAR(info->port.tty));
+ serial_out(info, UART_ESI_CMD2, STOP_CHAR(info->port.tty));
serial_out(info, UART_ESI_CMD2, 0x10);
serial_out(info, UART_ESI_CMD2, 0x21);
switch (cflag & CSIZE) {
@@ -1355,9 +1355,9 @@ static int get_serial_info(struct esp_struct *info,
memset(&tmp, 0, sizeof(tmp));
tmp.type = PORT_16550A;
tmp.line = info->line;
- tmp.port = info->port;
+ tmp.port = info->io_port;
tmp.irq = info->irq;
- tmp.flags = info->flags;
+ tmp.flags = info->port.flags;
tmp.xmit_fifo_size = 1024;
tmp.baud_base = BASE_BAUD;
tmp.close_delay = info->close_delay;
@@ -1407,7 +1407,7 @@ static int set_serial_info(struct esp_struct *info,
if ((new_serial.type != PORT_16550A) ||
(new_serial.hub6) ||
- (info->port != new_serial.port) ||
+ (info->io_port != new_serial.port) ||
(new_serial.baud_base != BASE_BAUD) ||
(new_serial.irq > 15) ||
(new_serial.irq < 2) ||
@@ -1425,9 +1425,9 @@ static int set_serial_info(struct esp_struct *info,
if (change_irq ||
(new_serial.close_delay != info->close_delay) ||
((new_serial.flags & ~ASYNC_USR_MASK) !=
- (info->flags & ~ASYNC_USR_MASK)))
+ (info->port.flags & ~ASYNC_USR_MASK)))
return -EPERM;
- info->flags = ((info->flags & ~ASYNC_USR_MASK) |
+ info->port.flags = ((info->port.flags & ~ASYNC_USR_MASK) |
(new_serial.flags & ASYNC_USR_MASK));
info->custom_divisor = new_serial.custom_divisor;
} else {
@@ -1441,9 +1441,9 @@ static int set_serial_info(struct esp_struct *info,
if ((current_async->line >= info->line) &&
(current_async->line < (info->line + 8))) {
if (current_async == info) {
- if (current_async->count > 1)
+ if (current_async->port.count > 1)
return -EBUSY;
- } else if (current_async->count)
+ } else if (current_async->port.count)
return -EBUSY;
}
@@ -1456,7 +1456,7 @@ static int set_serial_info(struct esp_struct *info,
* At this point, we start making changes.....
*/
- info->flags = ((info->flags & ~ASYNC_FLAGS) |
+ info->port.flags = ((info->port.flags & ~ASYNC_FLAGS) |
(new_serial.flags & ASYNC_FLAGS));
info->custom_divisor = new_serial.custom_divisor;
info->close_delay = new_serial.close_delay * HZ/100;
@@ -1487,18 +1487,18 @@ static int set_serial_info(struct esp_struct *info,
}
}
- if (info->flags & ASYNC_INITIALIZED) {
- if (((old_info.flags & ASYNC_SPD_MASK) !=
- (info->flags & ASYNC_SPD_MASK)) ||
+ if (info->port.flags & ASYNC_INITIALIZED) {
+ if (((old_info.port.flags & ASYNC_SPD_MASK) !=
+ (info->port.flags & ASYNC_SPD_MASK)) ||
(old_info.custom_divisor != info->custom_divisor)) {
- if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
- info->tty->alt_speed = 57600;
- if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
- info->tty->alt_speed = 115200;
- if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
- info->tty->alt_speed = 230400;
- if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
- info->tty->alt_speed = 460800;
+ if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
+ info->port.tty->alt_speed = 57600;
+ if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
+ info->port.tty->alt_speed = 115200;
+ if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
+ info->port.tty->alt_speed = 230400;
+ if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
+ info->port.tty->alt_speed = 460800;
change_speed(info);
}
} else
@@ -1554,9 +1554,9 @@ static int set_esp_config(struct esp_struct *info,
while (current_async) {
if (current_async == info) {
- if (current_async->count > 1)
+ if (current_async->port.count > 1)
return -EBUSY;
- } else if (current_async->count)
+ } else if (current_async->port.count)
return -EBUSY;
current_async = current_async->next_port;
@@ -1578,7 +1578,7 @@ static int set_esp_config(struct esp_struct *info,
spin_unlock_irqrestore(&info->lock, flags);
} else {
/* DMA mode to PIO mode only */
- if (info->count > 1)
+ if (info->port.count > 1)
return -EBUSY;
shutdown(info);
@@ -1634,7 +1634,7 @@ static int set_esp_config(struct esp_struct *info,
spin_unlock_irqrestore(&info->lock, flags);
}
- if (!(info->flags & ASYNC_INITIALIZED))
+ if (!(info->port.flags & ASYNC_INITIALIZED))
retval = startup(info);
return retval;
@@ -1917,9 +1917,9 @@ static void rs_close(struct tty_struct *tty, struct file *filp)
#ifdef SERIAL_DEBUG_OPEN
printk(KERN_DEBUG "rs_close ttys%d, count = %d\n",
- info->line, info->count);
+ info->line, info->port.count);
#endif
- if (tty->count == 1 && info->count != 1) {
+ if (tty->count == 1 && info->port.count != 1) {
/*
* Uh, oh. tty->count is 1, which means that the tty
* structure will be freed. Info->count should always
@@ -1927,19 +1927,19 @@ static void rs_close(struct tty_struct *tty, struct file *filp)
* one, we've got real problems, since it means the
* serial port won't be shutdown.
*/
- printk(KERN_DEBUG "rs_close: bad serial port count; tty->count is 1, info->count is %d\n", info->count);
- info->count = 1;
+ printk(KERN_DEBUG "rs_close: bad serial port count; tty->count is 1, info->port.count is %d\n", info->port.count);
+ info->port.count = 1;
}
- if (--info->count < 0) {
+ if (--info->port.count < 0) {
printk(KERN_ERR "rs_close: bad serial port count for ttys%d: %d\n",
- info->line, info->count);
- info->count = 0;
+ info->line, info->port.count);
+ info->port.count = 0;
}
- if (info->count) {
+ if (info->port.count) {
DBG_CNT("before DEC-2");
goto out;
}
- info->flags |= ASYNC_CLOSING;
+ info->port.flags |= ASYNC_CLOSING;
spin_unlock_irqrestore(&info->lock, flags);
/*
@@ -1958,7 +1958,7 @@ static void rs_close(struct tty_struct *tty, struct file *filp)
/* info->IER &= ~UART_IER_RLSI; */
info->IER &= ~UART_IER_RDI;
info->read_status_mask &= ~UART_LSR_DR;
- if (info->flags & ASYNC_INITIALIZED) {
+ if (info->port.flags & ASYNC_INITIALIZED) {
spin_lock_irqsave(&info->lock, flags);
serial_out(info, UART_ESI_CMD1, ESI_SET_SRV_MASK);
@@ -1981,15 +1981,15 @@ static void rs_close(struct tty_struct *tty, struct file *filp)
rs_flush_buffer(tty);
tty_ldisc_flush(tty);
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);
- wake_up_interruptible(&info->close_wait);
+ info->port.flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
+ wake_up_interruptible(&info->port.close_wait);
return;
out:
@@ -2047,10 +2047,10 @@ static void esp_hangup(struct tty_struct *tty)
rs_flush_buffer(tty);
shutdown(info);
- info->count = 0;
- info->flags &= ~ASYNC_NORMAL_ACTIVE;
- info->tty = NULL;
- wake_up_interruptible(&info->open_wait);
+ info->port.count = 0;
+ info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
+ info->port.tty = NULL;
+ wake_up_interruptible(&info->port.open_wait);
}
/*
@@ -2071,11 +2071,11 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
* until it's done, and then try again.
*/
if (tty_hung_up_p(filp) ||
- (info->flags & ASYNC_CLOSING)) {
- if (info->flags & ASYNC_CLOSING)
- interruptible_sleep_on(&info->close_wait);
+ (info->port.flags & ASYNC_CLOSING)) {
+ if (info->port.flags & ASYNC_CLOSING)
+ interruptible_sleep_on(&info->port.close_wait);
#ifdef SERIAL_DO_RESTART
- if (info->flags & ASYNC_HUP_NOTIFY)
+ if (info->port.flags & ASYNC_HUP_NOTIFY)
return -EAGAIN;
else
return -ERESTARTSYS;
@@ -2090,7 +2090,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
*/
if ((filp->f_flags & O_NONBLOCK) ||
(tty->flags & (1 << TTY_IO_ERROR))) {
- info->flags |= ASYNC_NORMAL_ACTIVE;
+ info->port.flags |= ASYNC_NORMAL_ACTIVE;
return 0;
}
@@ -2100,20 +2100,20 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
/*
* Block waiting for the 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
* rs_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);
#ifdef SERIAL_DEBUG_OPEN
printk(KERN_DEBUG "block_til_ready before block: ttys%d, count = %d\n",
- info->line, info->count);
+ info->line, info->port.count);
#endif
spin_lock_irqsave(&info->lock, flags);
if (!tty_hung_up_p(filp))
- info->count--;
- info->blocked_open++;
+ info->port.count--;
+ info->port.blocked_open++;
while (1) {
if ((tty->termios->c_cflag & CBAUD)) {
unsigned int scratch;
@@ -2128,9 +2128,9 @@ 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)) {
+ !(info->port.flags & ASYNC_INITIALIZED)) {
#ifdef SERIAL_DO_RESTART
- if (info->flags & ASYNC_HUP_NOTIFY)
+ if (info->port.flags & ASYNC_HUP_NOTIFY)
retval = -EAGAIN;
else
retval = -ERESTARTSYS;
@@ -2144,7 +2144,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
if (serial_in(info, UART_ESI_STAT2) & UART_MSR_DCD)
do_clocal = 1;
- if (!(info->flags & ASYNC_CLOSING) &&
+ if (!(info->port.flags & ASYNC_CLOSING) &&
(do_clocal))
break;
if (signal_pending(current)) {
@@ -2153,25 +2153,25 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
}
#ifdef SERIAL_DEBUG_OPEN
printk(KERN_DEBUG "block_til_ready blocking: ttys%d, count = %d\n",
- info->line, info->count);
+ info->line, info->port.count);
#endif
spin_unlock_irqrestore(&info->lock, flags);
schedule();
spin_lock_irqsave(&info->lock, flags);
}
set_current_state(TASK_RUNNING);
- remove_wait_queue(&info->open_wait, &wait);
+ remove_wait_queue(&info->port.open_wait, &wait);
if (!tty_hung_up_p(filp))
- info->count++;
- info->blocked_open--;
+ info->port.count++;
+ info->port.blocked_open--;
spin_unlock_irqrestore(&info->lock, flags);
#ifdef SERIAL_DEBUG_OPEN
printk(KERN_DEBUG "block_til_ready after blocking: ttys%d, count = %d\n",
- info->line, info->count);
+ info->line, info->port.count);
#endif
if (retval)
return retval;
- info->flags |= ASYNC_NORMAL_ACTIVE;
+ info->port.flags |= ASYNC_NORMAL_ACTIVE;
return 0;
}
@@ -2204,12 +2204,12 @@ static int esp_open(struct tty_struct *tty, struct file *filp)
}
#ifdef SERIAL_DEBUG_OPEN
- printk(KERN_DEBUG "esp_open %s, count = %d\n", tty->name, info->count);
+ printk(KERN_DEBUG "esp_open %s, count = %d\n", tty->name, info->port.count);
#endif
spin_lock_irqsave(&info->lock, flags);
- info->count++;
+ info->port.count++;
tty->driver_data = info;
- info->tty = tty;
+ info->port.tty = tty;
spin_unlock_irqrestore(&info->lock, flags);
@@ -2263,7 +2263,7 @@ static int autoconfig(struct esp_struct *info)
int port_detected = 0;
unsigned long flags;
- if (!request_region(info->port, REGION_SIZE, "esp serial"))
+ if (!request_region(info->io_port, REGION_SIZE, "esp serial"))
return -EIO;
spin_lock_irqsave(&info->lock, flags);
@@ -2300,7 +2300,7 @@ static int autoconfig(struct esp_struct *info)
}
}
if (!port_detected)
- release_region(info->port, REGION_SIZE);
+ release_region(info->io_port, REGION_SIZE);
spin_unlock_irqrestore(&info->lock, flags);
return (port_detected);
@@ -2414,7 +2414,7 @@ static int __init espserial_init(void)
offset = 0;
do {
- info->port = esp[i] + offset;
+ info->io_port = esp[i] + offset;
info->irq = irq[i];
info->line = (i * 8) + (offset / 8);
@@ -2425,9 +2425,9 @@ static int __init espserial_init(void)
}
info->custom_divisor = (divisor[i] >> (offset / 2)) & 0xf;
- info->flags = STD_COM_FLAGS;
+ info->port.flags = STD_COM_FLAGS;
if (info->custom_divisor)
- info->flags |= ASYNC_SPD_CUST;
+ info->port.flags |= ASYNC_SPD_CUST;
info->magic = ESP_MAGIC;
info->close_delay = 5*HZ/10;
info->closing_wait = 30*HZ;
@@ -2436,13 +2436,13 @@ static int __init espserial_init(void)
info->config.flow_off = flow_off;
info->config.pio_threshold = pio_threshold;
info->next_port = ports;
- init_waitqueue_head(&info->open_wait);
- init_waitqueue_head(&info->close_wait);
+ init_waitqueue_head(&info->port.open_wait);
+ init_waitqueue_head(&info->port.close_wait);
init_waitqueue_head(&info->delta_msr_wait);
init_waitqueue_head(&info->break_wait);
ports = info;
printk(KERN_INFO "ttyP%d at 0x%04x (irq = %d) is an ESP ",
- info->line, info->port, info->irq);
+ info->line, info->io_port, info->irq);
if (info->line % 8) {
printk("secondary port\n");
@@ -2498,8 +2498,8 @@ static void __exit espserial_exit(void)
put_tty_driver(esp_driver);
while (ports) {
- if (ports->port)
- release_region(ports->port, REGION_SIZE);
+ if (ports->io_port)
+ release_region(ports->io_port, REGION_SIZE);
temp_async = ports->next_port;
kfree(ports);
ports = temp_async;
diff --git a/include/linux/hayesesp.h b/include/linux/hayesesp.h
index 2177ee5..940aeb5 100644
--- a/include/linux/hayesesp.h
+++ b/include/linux/hayesesp.h
@@ -76,11 +76,10 @@ struct hayes_esp_config {
struct esp_struct {
int magic;
+ struct tty_port port;
spinlock_t lock;
- int port;
+ int io_port;
int irq;
- int flags; /* defined in tty.h */
- struct tty_struct *tty;
int read_status_mask;
int ignore_status_mask;
int timeout;
@@ -93,14 +92,10 @@ struct esp_struct {
int MCR; /* Modem control register */
unsigned long last_active;
int line;
- int count; /* # of fd on device */
- int blocked_open; /* # of blocked opens */
unsigned char *xmit_buf;
int xmit_head;
int xmit_tail;
int xmit_cnt;
- wait_queue_head_t open_wait;
- wait_queue_head_t close_wait;
wait_queue_head_t delta_msr_wait;
wait_queue_head_t break_wait;
struct async_icount icount; /* kernel counters for the 4 input interrupts */
^ permalink raw reply related [flat|nested] 32+ messages in thread* [PATCH 11/20] istallion: use tty_port
2008-05-19 14:50 [PATCH 00/20] Implment a tty port structure and supporting logic Alan Cox
` (9 preceding siblings ...)
2008-05-19 14:51 ` [PATCH 10/20] esp: " Alan Cox
@ 2008-05-19 14:51 ` Alan Cox
2008-05-19 14:51 ` [PATCH 12/20] stallion: " Alan Cox
` (10 subsequent siblings)
21 siblings, 0 replies; 32+ messages in thread
From: Alan Cox @ 2008-05-19 14:51 UTC (permalink / raw)
To: linux-kernel, akpm, greg
From: Alan Cox <alan@redhat.com>
Switch istallion to use the new tty_port structure
---
drivers/char/istallion.c | 116 +++++++++++++++++++++++----------------------
include/linux/istallion.h | 6 --
2 files changed, 59 insertions(+), 63 deletions(-)
diff --git a/drivers/char/istallion.c b/drivers/char/istallion.c
index 7c8b62f..6ef1c56 100644
--- a/drivers/char/istallion.c
+++ b/drivers/char/istallion.c
@@ -735,8 +735,8 @@ static void stli_cleanup_ports(struct stlibrd *brdp)
for (j = 0; j < STL_MAXPORTS; j++) {
portp = brdp->ports[j];
if (portp != NULL) {
- if (portp->tty != NULL)
- tty_hangup(portp->tty);
+ if (portp->port.tty != NULL)
+ tty_hangup(portp->port.tty);
kfree(portp);
}
}
@@ -811,9 +811,9 @@ static int stli_open(struct tty_struct *tty, struct file *filp)
* The sleep here does not need interrupt protection since the wakeup
* for it is done with the same context.
*/
- if (portp->flags & ASYNC_CLOSING) {
- interruptible_sleep_on(&portp->close_wait);
- if (portp->flags & ASYNC_HUP_NOTIFY)
+ if (portp->port.flags & ASYNC_CLOSING) {
+ interruptible_sleep_on(&portp->port.close_wait);
+ if (portp->port.flags & ASYNC_HUP_NOTIFY)
return -EAGAIN;
return -ERESTARTSYS;
}
@@ -824,7 +824,7 @@ static int stli_open(struct tty_struct *tty, struct file *filp)
* requires several commands to the board we will need to wait for any
* other open that is already initializing the port.
*/
- portp->tty = tty;
+ portp->port.tty = tty;
tty->driver_data = portp;
portp->refcount++;
@@ -833,10 +833,10 @@ static int stli_open(struct tty_struct *tty, struct file *filp)
if (signal_pending(current))
return -ERESTARTSYS;
- if ((portp->flags & ASYNC_INITIALIZED) == 0) {
+ if ((portp->port.flags & ASYNC_INITIALIZED) == 0) {
set_bit(ST_INITIALIZING, &portp->state);
if ((rc = stli_initopen(brdp, portp)) >= 0) {
- portp->flags |= ASYNC_INITIALIZED;
+ portp->port.flags |= ASYNC_INITIALIZED;
clear_bit(TTY_IO_ERROR, &tty->flags);
}
clear_bit(ST_INITIALIZING, &portp->state);
@@ -851,9 +851,9 @@ static int stli_open(struct tty_struct *tty, struct file *filp)
* The sleep here does not need interrupt protection since the wakeup
* for it is done with the same context.
*/
- if (portp->flags & ASYNC_CLOSING) {
- interruptible_sleep_on(&portp->close_wait);
- if (portp->flags & ASYNC_HUP_NOTIFY)
+ if (portp->port.flags & ASYNC_CLOSING) {
+ interruptible_sleep_on(&portp->port.close_wait);
+ if (portp->port.flags & ASYNC_HUP_NOTIFY)
return -EAGAIN;
return -ERESTARTSYS;
}
@@ -867,7 +867,7 @@ static int stli_open(struct tty_struct *tty, struct file *filp)
if ((rc = stli_waitcarrier(brdp, portp, filp)) != 0)
return rc;
}
- portp->flags |= ASYNC_NORMAL_ACTIVE;
+ portp->port.flags |= ASYNC_NORMAL_ACTIVE;
return 0;
}
@@ -895,7 +895,7 @@ static void stli_close(struct tty_struct *tty, struct file *filp)
return;
}
- portp->flags |= ASYNC_CLOSING;
+ portp->port.flags |= ASYNC_CLOSING;
/*
* May want to wait for data to drain before closing. The BUSY flag
@@ -911,7 +911,7 @@ static void stli_close(struct tty_struct *tty, struct file *filp)
if (portp->closing_wait != ASYNC_CLOSING_WAIT_NONE)
tty_wait_until_sent(tty, portp->closing_wait);
- portp->flags &= ~ASYNC_INITIALIZED;
+ portp->port.flags &= ~ASYNC_INITIALIZED;
brdp = stli_brds[portp->brdnr];
stli_rawclose(brdp, portp, 0, 0);
if (tty->termios->c_cflag & HUPCL) {
@@ -931,16 +931,16 @@ static void stli_close(struct tty_struct *tty, struct file *filp)
stli_flushbuffer(tty);
tty->closing = 0;
- portp->tty = NULL;
+ portp->port.tty = NULL;
if (portp->openwaitcnt) {
if (portp->close_delay)
msleep_interruptible(jiffies_to_msecs(portp->close_delay));
- wake_up_interruptible(&portp->open_wait);
+ wake_up_interruptible(&portp->port.open_wait);
}
- portp->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
- wake_up_interruptible(&portp->close_wait);
+ portp->port.flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
+ wake_up_interruptible(&portp->port.close_wait);
}
/*****************************************************************************/
@@ -970,7 +970,7 @@ static int stli_initopen(struct stlibrd *brdp, struct stliport *portp)
sizeof(asynotify_t), 0)) < 0)
return rc;
- tty = portp->tty;
+ tty = portp->port.tty;
if (tty == NULL)
return -ENODEV;
stli_mkasyport(portp, &aport, tty->termios);
@@ -1169,7 +1169,7 @@ static int stli_setport(struct stliport *portp)
if (portp == NULL)
return -ENODEV;
- if (portp->tty == NULL)
+ if (portp->port.tty == NULL)
return -ENODEV;
if (portp->brdnr >= stli_nrbrds)
return -ENODEV;
@@ -1177,7 +1177,7 @@ static int stli_setport(struct stliport *portp)
if (brdp == NULL)
return -ENODEV;
- stli_mkasyport(portp, &aport, portp->tty->termios);
+ stli_mkasyport(portp, &aport, portp->port.tty->termios);
return(stli_cmdwait(brdp, portp, A_SETPORT, &aport, sizeof(asyport_t), 0));
}
@@ -1196,7 +1196,7 @@ static int stli_waitcarrier(struct stlibrd *brdp, struct stliport *portp, struct
rc = 0;
doclocal = 0;
- if (portp->tty->termios->c_cflag & CLOCAL)
+ if (portp->port.tty->termios->c_cflag & CLOCAL)
doclocal++;
spin_lock_irqsave(&stli_lock, flags);
@@ -1211,14 +1211,14 @@ static int stli_waitcarrier(struct stlibrd *brdp, struct stliport *portp, struct
&portp->asig, sizeof(asysigs_t), 0)) < 0)
break;
if (tty_hung_up_p(filp) ||
- ((portp->flags & ASYNC_INITIALIZED) == 0)) {
- if (portp->flags & ASYNC_HUP_NOTIFY)
+ ((portp->port.flags & ASYNC_INITIALIZED) == 0)) {
+ if (portp->port.flags & ASYNC_HUP_NOTIFY)
rc = -EBUSY;
else
rc = -ERESTARTSYS;
break;
}
- if (((portp->flags & ASYNC_CLOSING) == 0) &&
+ if (((portp->port.flags & ASYNC_CLOSING) == 0) &&
(doclocal || (portp->sigs & TIOCM_CD))) {
break;
}
@@ -1226,7 +1226,7 @@ static int stli_waitcarrier(struct stlibrd *brdp, struct stliport *portp, struct
rc = -ERESTARTSYS;
break;
}
- interruptible_sleep_on(&portp->open_wait);
+ interruptible_sleep_on(&portp->port.open_wait);
}
spin_lock_irqsave(&stli_lock, flags);
@@ -1548,7 +1548,7 @@ static int stli_getserial(struct stliport *portp, struct serial_struct __user *s
sio.type = PORT_UNKNOWN;
sio.line = portp->portnr;
sio.irq = 0;
- sio.flags = portp->flags;
+ sio.flags = portp->port.flags;
sio.baud_base = portp->baud_base;
sio.close_delay = portp->close_delay;
sio.closing_wait = portp->closing_wait;
@@ -1583,11 +1583,11 @@ static int stli_setserial(struct stliport *portp, struct serial_struct __user *s
if ((sio.baud_base != portp->baud_base) ||
(sio.close_delay != portp->close_delay) ||
((sio.flags & ~ASYNC_USR_MASK) !=
- (portp->flags & ~ASYNC_USR_MASK)))
+ (portp->port.flags & ~ASYNC_USR_MASK)))
return -EPERM;
}
- portp->flags = (portp->flags & ~ASYNC_USR_MASK) |
+ portp->port.flags = (portp->port.flags & ~ASYNC_USR_MASK) |
(sio.flags & ASYNC_USR_MASK);
portp->baud_base = sio.baud_base;
portp->close_delay = sio.close_delay;
@@ -1751,7 +1751,7 @@ static void stli_settermios(struct tty_struct *tty, struct ktermios *old)
if ((old->c_cflag & CRTSCTS) && ((tiosp->c_cflag & CRTSCTS) == 0))
tty->hw_stopped = 0;
if (((old->c_cflag & CLOCAL) == 0) && (tiosp->c_cflag & CLOCAL))
- wake_up_interruptible(&portp->open_wait);
+ wake_up_interruptible(&portp->port.open_wait);
}
/*****************************************************************************/
@@ -1834,7 +1834,7 @@ static void stli_hangup(struct tty_struct *tty)
if (brdp == NULL)
return;
- portp->flags &= ~ASYNC_INITIALIZED;
+ portp->port.flags &= ~ASYNC_INITIALIZED;
if (!test_bit(ST_CLOSING, &portp->state))
stli_rawclose(brdp, portp, 0, 0);
@@ -1855,12 +1855,12 @@ static void stli_hangup(struct tty_struct *tty)
clear_bit(ST_TXBUSY, &portp->state);
clear_bit(ST_RXSTOP, &portp->state);
set_bit(TTY_IO_ERROR, &tty->flags);
- portp->tty = NULL;
- portp->flags &= ~ASYNC_NORMAL_ACTIVE;
+ portp->port.tty = NULL;
+ portp->port.flags &= ~ASYNC_NORMAL_ACTIVE;
portp->refcount = 0;
spin_unlock_irqrestore(&stli_lock, flags);
- wake_up_interruptible(&portp->open_wait);
+ wake_up_interruptible(&portp->port.open_wait);
}
/*****************************************************************************/
@@ -2188,7 +2188,7 @@ static void stli_read(struct stlibrd *brdp, struct stliport *portp)
if (test_bit(ST_RXSTOP, &portp->state))
return;
- tty = portp->tty;
+ tty = portp->port.tty;
if (tty == NULL)
return;
@@ -2362,7 +2362,7 @@ static int stli_hostcmd(struct stlibrd *brdp, struct stliport *portp)
if (ap->notify) {
nt = ap->changed;
ap->notify = 0;
- tty = portp->tty;
+ tty = portp->port.tty;
if (nt.signal & SG_DCD) {
oldsigs = portp->sigs;
@@ -2370,10 +2370,10 @@ static int stli_hostcmd(struct stlibrd *brdp, struct stliport *portp)
clear_bit(ST_GETSIGS, &portp->state);
if ((portp->sigs & TIOCM_CD) &&
((oldsigs & TIOCM_CD) == 0))
- wake_up_interruptible(&portp->open_wait);
+ wake_up_interruptible(&portp->port.open_wait);
if ((oldsigs & TIOCM_CD) &&
((portp->sigs & TIOCM_CD) == 0)) {
- if (portp->flags & ASYNC_CHECK_CD) {
+ if (portp->port.flags & ASYNC_CHECK_CD) {
if (tty)
tty_hangup(tty);
}
@@ -2392,7 +2392,7 @@ static int stli_hostcmd(struct stlibrd *brdp, struct stliport *portp)
if ((nt.data & DT_RXBREAK) && (portp->rxmarkmsk & BRKINT)) {
if (tty != NULL) {
tty_insert_flip_char(tty, 0, TTY_BREAK);
- if (portp->flags & ASYNC_SAK) {
+ if (portp->port.flags & ASYNC_SAK) {
do_SAK(tty);
EBRDENABLE(brdp);
}
@@ -2542,17 +2542,17 @@ static void stli_mkasyport(struct stliport *portp, asyport_t *pp, struct ktermio
/*
* Start of by setting the baud, char size, parity and stop bit info.
*/
- pp->baudout = tty_get_baud_rate(portp->tty);
+ pp->baudout = tty_get_baud_rate(portp->port.tty);
if ((tiosp->c_cflag & CBAUD) == B38400) {
- if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
+ if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
pp->baudout = 57600;
- else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
+ else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
pp->baudout = 115200;
- else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
+ else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
pp->baudout = 230400;
- else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
+ else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
pp->baudout = 460800;
- else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST)
+ else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST)
pp->baudout = (portp->baud_base / portp->custom_divisor);
}
if (pp->baudout > STL_MAXBAUD)
@@ -2625,9 +2625,9 @@ static void stli_mkasyport(struct stliport *portp, asyport_t *pp, struct ktermio
* Set up clocal processing as required.
*/
if (tiosp->c_cflag & CLOCAL)
- portp->flags &= ~ASYNC_CHECK_CD;
+ portp->port.flags &= ~ASYNC_CHECK_CD;
else
- portp->flags |= ASYNC_CHECK_CD;
+ portp->port.flags |= ASYNC_CHECK_CD;
/*
* Transfer any persistent flags into the asyport structure.
@@ -2703,8 +2703,8 @@ static int stli_initports(struct stlibrd *brdp)
portp->baud_base = STL_BAUDBASE;
portp->close_delay = STL_CLOSEDELAY;
portp->closing_wait = 30 * HZ;
- init_waitqueue_head(&portp->open_wait);
- init_waitqueue_head(&portp->close_wait);
+ init_waitqueue_head(&portp->port.open_wait);
+ init_waitqueue_head(&portp->port.close_wait);
init_waitqueue_head(&portp->raw_wait);
panelport++;
if (panelport >= brdp->panels[panelnr]) {
@@ -4246,18 +4246,18 @@ static int stli_portcmdstats(struct stliport *portp)
stli_comstats.panel = portp->panelnr;
stli_comstats.port = portp->portnr;
stli_comstats.state = portp->state;
- stli_comstats.flags = portp->flags;
+ stli_comstats.flags = portp->port.flag;
spin_lock_irqsave(&brd_lock, flags);
- if (portp->tty != NULL) {
- if (portp->tty->driver_data == portp) {
- stli_comstats.ttystate = portp->tty->flags;
+ if (portp->port.tty != NULL) {
+ if (portp->port.tty->driver_data == portp) {
+ stli_comstats.ttystate = portp->port.tty->flags;
stli_comstats.rxbuffered = -1;
- if (portp->tty->termios != NULL) {
- stli_comstats.cflags = portp->tty->termios->c_cflag;
- stli_comstats.iflags = portp->tty->termios->c_iflag;
- stli_comstats.oflags = portp->tty->termios->c_oflag;
- stli_comstats.lflags = portp->tty->termios->c_lflag;
+ if (portp->port.tty->termios != NULL) {
+ stli_comstats.cflags = portp->port.tty->termios->c_cflag;
+ stli_comstats.iflags = portp->port.tty->termios->c_iflag;
+ stli_comstats.oflags = portp->port.tty->termios->c_oflag;
+ stli_comstats.lflags = portp->port.tty->termios->c_lflag;
}
}
}
diff --git a/include/linux/istallion.h b/include/linux/istallion.h
index 5a84fe9..0d18407 100644
--- a/include/linux/istallion.h
+++ b/include/linux/istallion.h
@@ -51,25 +51,21 @@
*/
struct stliport {
unsigned long magic;
+ struct tty_port port;
unsigned int portnr;
unsigned int panelnr;
unsigned int brdnr;
unsigned long state;
unsigned int devnr;
- int flags;
int baud_base;
int custom_divisor;
int close_delay;
int closing_wait;
- int refcount;
int openwaitcnt;
int rc;
int argsize;
void *argp;
unsigned int rxmarkmsk;
- struct tty_struct *tty;
- wait_queue_head_t open_wait;
- wait_queue_head_t close_wait;
wait_queue_head_t raw_wait;
struct asysigs asig;
unsigned long addr;
^ permalink raw reply related [flat|nested] 32+ messages in thread* [PATCH 12/20] stallion: use tty_port
2008-05-19 14:50 [PATCH 00/20] Implment a tty port structure and supporting logic Alan Cox
` (10 preceding siblings ...)
2008-05-19 14:51 ` [PATCH 11/20] istallion: " Alan Cox
@ 2008-05-19 14:51 ` Alan Cox
2008-05-19 14:51 ` [PATCH 13/20] cyclades: " Alan Cox
` (9 subsequent siblings)
21 siblings, 0 replies; 32+ messages in thread
From: Alan Cox @ 2008-05-19 14:51 UTC (permalink / raw)
To: linux-kernel, akpm, greg
From: Alan Cox <alan@redhat.com>
Switch the stallion driver to use the tty_port structure
---
drivers/char/stallion.c | 160 +++++++++++++++++++++++-----------------------
include/linux/stallion.h | 6 --
2 files changed, 81 insertions(+), 85 deletions(-)
diff --git a/drivers/char/stallion.c b/drivers/char/stallion.c
index d17be10..0243efb 100644
--- a/drivers/char/stallion.c
+++ b/drivers/char/stallion.c
@@ -613,17 +613,17 @@ static void stl_cd_change(struct stlport *portp)
{
unsigned int oldsigs = portp->sigs;
- if (!portp->tty)
+ if (!portp->port.tty)
return;
portp->sigs = stl_getsignals(portp);
if ((portp->sigs & TIOCM_CD) && ((oldsigs & TIOCM_CD) == 0))
- wake_up_interruptible(&portp->open_wait);
+ wake_up_interruptible(&portp->port.open_wait);
if ((oldsigs & TIOCM_CD) && ((portp->sigs & TIOCM_CD) == 0))
- if (portp->flags & ASYNC_CHECK_CD)
- tty_hangup(portp->tty);
+ if (portp->port.flags & ASYNC_CHECK_CD)
+ tty_hangup(portp->port.tty);
}
/*
@@ -734,11 +734,11 @@ static int stl_open(struct tty_struct *tty, struct file *filp)
* On the first open of the device setup the port hardware, and
* initialize the per port data structure.
*/
- portp->tty = tty;
+ portp->port.tty = tty;
tty->driver_data = portp;
- portp->refcount++;
+ portp->port.count++;
- if ((portp->flags & ASYNC_INITIALIZED) == 0) {
+ if ((portp->port.flags & ASYNC_INITIALIZED) == 0) {
if (!portp->tx.buf) {
portp->tx.buf = kmalloc(STL_TXBUFSIZE, GFP_KERNEL);
if (!portp->tx.buf)
@@ -752,7 +752,7 @@ static int stl_open(struct tty_struct *tty, struct file *filp)
stl_enablerxtx(portp, 1, 1);
stl_startrxtx(portp, 1, 0);
clear_bit(TTY_IO_ERROR, &tty->flags);
- portp->flags |= ASYNC_INITIALIZED;
+ portp->port.flags |= ASYNC_INITIALIZED;
}
/*
@@ -761,9 +761,9 @@ static int stl_open(struct tty_struct *tty, struct file *filp)
* The sleep here does not need interrupt protection since the wakeup
* for it is done with the same context.
*/
- if (portp->flags & ASYNC_CLOSING) {
- interruptible_sleep_on(&portp->close_wait);
- if (portp->flags & ASYNC_HUP_NOTIFY)
+ if (portp->port.flags & ASYNC_CLOSING) {
+ interruptible_sleep_on(&portp->port.close_wait);
+ if (portp->port.flags & ASYNC_HUP_NOTIFY)
return -EAGAIN;
return -ERESTARTSYS;
}
@@ -777,7 +777,7 @@ static int stl_open(struct tty_struct *tty, struct file *filp)
if ((rc = stl_waitcarrier(portp, filp)) != 0)
return rc;
- portp->flags |= ASYNC_NORMAL_ACTIVE;
+ portp->port.flags |= ASYNC_NORMAL_ACTIVE;
return 0;
}
@@ -801,25 +801,25 @@ static int stl_waitcarrier(struct stlport *portp, struct file *filp)
spin_lock_irqsave(&stallion_lock, flags);
- if (portp->tty->termios->c_cflag & CLOCAL)
+ if (portp->port.tty->termios->c_cflag & CLOCAL)
doclocal++;
portp->openwaitcnt++;
if (! tty_hung_up_p(filp))
- portp->refcount--;
+ portp->port.count--;
for (;;) {
/* Takes brd_lock internally */
stl_setsignals(portp, 1, 1);
if (tty_hung_up_p(filp) ||
- ((portp->flags & ASYNC_INITIALIZED) == 0)) {
- if (portp->flags & ASYNC_HUP_NOTIFY)
+ ((portp->port.flags & ASYNC_INITIALIZED) == 0)) {
+ if (portp->port.flags & ASYNC_HUP_NOTIFY)
rc = -EBUSY;
else
rc = -ERESTARTSYS;
break;
}
- if (((portp->flags & ASYNC_CLOSING) == 0) &&
+ if (((portp->port.flags & ASYNC_CLOSING) == 0) &&
(doclocal || (portp->sigs & TIOCM_CD)))
break;
if (signal_pending(current)) {
@@ -827,11 +827,11 @@ static int stl_waitcarrier(struct stlport *portp, struct file *filp)
break;
}
/* FIXME */
- interruptible_sleep_on(&portp->open_wait);
+ interruptible_sleep_on(&portp->port.open_wait);
}
if (! tty_hung_up_p(filp))
- portp->refcount++;
+ portp->port.count++;
portp->openwaitcnt--;
spin_unlock_irqrestore(&stallion_lock, flags);
@@ -904,15 +904,15 @@ static void stl_close(struct tty_struct *tty, struct file *filp)
spin_unlock_irqrestore(&stallion_lock, flags);
return;
}
- if ((tty->count == 1) && (portp->refcount != 1))
- portp->refcount = 1;
- if (portp->refcount-- > 1) {
+ if ((tty->count == 1) && (portp->port.count != 1))
+ portp->port.count = 1;
+ if (portp->port.count-- > 1) {
spin_unlock_irqrestore(&stallion_lock, flags);
return;
}
- portp->refcount = 0;
- portp->flags |= ASYNC_CLOSING;
+ portp->port.count = 0;
+ portp->port.flags |= ASYNC_CLOSING;
/*
* May want to wait for any data to drain before closing. The BUSY
@@ -930,7 +930,7 @@ static void stl_close(struct tty_struct *tty, struct file *filp)
spin_lock_irqsave(&stallion_lock, flags);
- portp->flags &= ~ASYNC_INITIALIZED;
+ portp->port.flags &= ~ASYNC_INITIALIZED;
spin_unlock_irqrestore(&stallion_lock, flags);
stl_disableintrs(portp);
@@ -949,16 +949,16 @@ static void stl_close(struct tty_struct *tty, struct file *filp)
tty_ldisc_flush(tty);
tty->closing = 0;
- portp->tty = NULL;
+ portp->port.tty = NULL;
if (portp->openwaitcnt) {
if (portp->close_delay)
msleep_interruptible(jiffies_to_msecs(portp->close_delay));
- wake_up_interruptible(&portp->open_wait);
+ wake_up_interruptible(&portp->port.open_wait);
}
- portp->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
- wake_up_interruptible(&portp->close_wait);
+ portp->port.flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
+ wake_up_interruptible(&portp->port.close_wait);
}
/*****************************************************************************/
@@ -1153,7 +1153,7 @@ static int stl_getserial(struct stlport *portp, struct serial_struct __user *sp)
memset(&sio, 0, sizeof(struct serial_struct));
sio.line = portp->portnr;
sio.port = portp->ioaddr;
- sio.flags = portp->flags;
+ sio.flags = portp->port.flags;
sio.baud_base = portp->baud_base;
sio.close_delay = portp->close_delay;
sio.closing_wait = portp->closing_wait;
@@ -1194,17 +1194,17 @@ static int stl_setserial(struct stlport *portp, struct serial_struct __user *sp)
if ((sio.baud_base != portp->baud_base) ||
(sio.close_delay != portp->close_delay) ||
((sio.flags & ~ASYNC_USR_MASK) !=
- (portp->flags & ~ASYNC_USR_MASK)))
+ (portp->port.flags & ~ASYNC_USR_MASK)))
return -EPERM;
}
- portp->flags = (portp->flags & ~ASYNC_USR_MASK) |
+ portp->port.flags = (portp->port.flags & ~ASYNC_USR_MASK) |
(sio.flags & ASYNC_USR_MASK);
portp->baud_base = sio.baud_base;
portp->close_delay = sio.close_delay;
portp->closing_wait = sio.closing_wait;
portp->custom_divisor = sio.custom_divisor;
- stl_setport(portp, portp->tty->termios);
+ stl_setport(portp, portp->port.tty->termios);
return 0;
}
@@ -1353,7 +1353,7 @@ static void stl_settermios(struct tty_struct *tty, struct ktermios *old)
stl_start(tty);
}
if (((old->c_cflag & CLOCAL) == 0) && (tiosp->c_cflag & CLOCAL))
- wake_up_interruptible(&portp->open_wait);
+ wake_up_interruptible(&portp->port.open_wait);
}
/*****************************************************************************/
@@ -1438,7 +1438,7 @@ static void stl_hangup(struct tty_struct *tty)
if (portp == NULL)
return;
- portp->flags &= ~ASYNC_INITIALIZED;
+ portp->port.flags &= ~ASYNC_INITIALIZED;
stl_disableintrs(portp);
if (tty->termios->c_cflag & HUPCL)
stl_setsignals(portp, 0, 0);
@@ -1452,10 +1452,10 @@ static void stl_hangup(struct tty_struct *tty)
portp->tx.head = NULL;
portp->tx.tail = NULL;
}
- portp->tty = NULL;
- portp->flags &= ~ASYNC_NORMAL_ACTIVE;
- portp->refcount = 0;
- wake_up_interruptible(&portp->open_wait);
+ portp->port.tty = NULL;
+ portp->port.flags &= ~ASYNC_NORMAL_ACTIVE;
+ portp->port.count = 0;
+ wake_up_interruptible(&portp->port.open_wait);
}
/*****************************************************************************/
@@ -1814,8 +1814,8 @@ static int __devinit stl_initports(struct stlbrd *brdp, struct stlpanel *panelp)
portp->baud_base = STL_BAUDBASE;
portp->close_delay = STL_CLOSEDELAY;
portp->closing_wait = 30 * HZ;
- init_waitqueue_head(&portp->open_wait);
- init_waitqueue_head(&portp->close_wait);
+ init_waitqueue_head(&portp->port.open_wait);
+ init_waitqueue_head(&portp->port.close_wait);
portp->stats.brd = portp->brdnr;
portp->stats.panel = portp->panelnr;
portp->stats.port = portp->portnr;
@@ -1840,8 +1840,8 @@ static void stl_cleanup_panels(struct stlbrd *brdp)
portp = panelp->ports[k];
if (portp == NULL)
continue;
- if (portp->tty != NULL)
- stl_hangup(portp->tty);
+ if (portp->port.tty != NULL)
+ stl_hangup(portp->port.tty);
kfree(portp->tx.buf);
kfree(portp);
}
@@ -2513,7 +2513,7 @@ static int stl_getportstats(struct stlport *portp, comstats_t __user *cp)
}
portp->stats.state = portp->istate;
- portp->stats.flags = portp->flags;
+ portp->stats.flags = portp->port.flags;
portp->stats.hwid = portp->hwid;
portp->stats.ttystate = 0;
@@ -2524,16 +2524,16 @@ static int stl_getportstats(struct stlport *portp, comstats_t __user *cp)
portp->stats.rxbuffered = 0;
spin_lock_irqsave(&stallion_lock, flags);
- if (portp->tty != NULL)
- if (portp->tty->driver_data == portp) {
- portp->stats.ttystate = portp->tty->flags;
+ if (portp->port.tty != NULL)
+ if (portp->port.tty->driver_data == portp) {
+ portp->stats.ttystate = portp->port.tty->flags;
/* No longer available as a statistic */
- portp->stats.rxbuffered = 1; /*portp->tty->flip.count; */
- if (portp->tty->termios != NULL) {
- portp->stats.cflags = portp->tty->termios->c_cflag;
- portp->stats.iflags = portp->tty->termios->c_iflag;
- portp->stats.oflags = portp->tty->termios->c_oflag;
- portp->stats.lflags = portp->tty->termios->c_lflag;
+ portp->stats.rxbuffered = 1; /*portp->port.tty->flip.count; */
+ if (portp->port.tty->termios != NULL) {
+ portp->stats.cflags = portp->port.tty->termios->c_cflag;
+ portp->stats.iflags = portp->port.tty->termios->c_iflag;
+ portp->stats.oflags = portp->port.tty->termios->c_oflag;
+ portp->stats.lflags = portp->port.tty->termios->c_lflag;
}
}
spin_unlock_irqrestore(&stallion_lock, flags);
@@ -2939,15 +2939,15 @@ static void stl_cd1400setport(struct stlport *portp, struct ktermios *tiosp)
}
baudrate = stl_baudrates[baudrate];
if ((tiosp->c_cflag & CBAUD) == B38400) {
- if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
+ if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
baudrate = 57600;
- else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
+ else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
baudrate = 115200;
- else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
+ else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
baudrate = 230400;
- else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
+ else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
baudrate = 460800;
- else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST)
+ else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST)
baudrate = (portp->baud_base / portp->custom_divisor);
}
if (baudrate > STL_CD1400MAXBAUD)
@@ -2969,9 +2969,9 @@ static void stl_cd1400setport(struct stlport *portp, struct ktermios *tiosp)
mcor1 |= MCOR1_DCD;
mcor2 |= MCOR2_DCD;
sreron |= SRER_MODEM;
- portp->flags |= ASYNC_CHECK_CD;
+ portp->port.flags |= ASYNC_CHECK_CD;
} else
- portp->flags &= ~ASYNC_CHECK_CD;
+ portp->port.flags &= ~ASYNC_CHECK_CD;
/*
* Setup cd1400 enhanced modes if we can. In particular we want to
@@ -3242,7 +3242,7 @@ static void stl_cd1400flowctrl(struct stlport *portp, int state)
if (portp == NULL)
return;
- tty = portp->tty;
+ tty = portp->port.tty;
if (tty == NULL)
return;
@@ -3304,7 +3304,7 @@ static void stl_cd1400sendflow(struct stlport *portp, int state)
if (portp == NULL)
return;
- tty = portp->tty;
+ tty = portp->port.tty;
if (tty == NULL)
return;
@@ -3503,8 +3503,8 @@ static void stl_cd1400txisr(struct stlpanel *panelp, int ioaddr)
if ((len == 0) || ((len < STL_TXBUFLOW) &&
(test_bit(ASYI_TXLOW, &portp->istate) == 0))) {
set_bit(ASYI_TXLOW, &portp->istate);
- if (portp->tty)
- tty_wakeup(portp->tty);
+ if (portp->port.tty)
+ tty_wakeup(portp->port.tty);
}
if (len == 0) {
@@ -3568,7 +3568,7 @@ static void stl_cd1400rxisr(struct stlpanel *panelp, int ioaddr)
return;
}
portp = panelp->ports[(ioack >> 3)];
- tty = portp->tty;
+ tty = portp->port.tty;
if ((ioack & ACK_TYPMASK) == ACK_TYPRXGOOD) {
outb((RDCR + portp->uartaddr), ioaddr);
@@ -3613,7 +3613,7 @@ static void stl_cd1400rxisr(struct stlpanel *panelp, int ioaddr)
if (portp->rxmarkmsk & status) {
if (status & ST_BREAK) {
status = TTY_BREAK;
- if (portp->flags & ASYNC_SAK) {
+ if (portp->port.flags & ASYNC_SAK) {
do_SAK(tty);
BRDENABLE(portp->brdnr, portp->pagenr);
}
@@ -3899,15 +3899,15 @@ static void stl_sc26198setport(struct stlport *portp, struct ktermios *tiosp)
}
baudrate = stl_baudrates[baudrate];
if ((tiosp->c_cflag & CBAUD) == B38400) {
- if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
+ if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
baudrate = 57600;
- else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
+ else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
baudrate = 115200;
- else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
+ else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
baudrate = 230400;
- else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
+ else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
baudrate = 460800;
- else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST)
+ else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST)
baudrate = (portp->baud_base / portp->custom_divisor);
}
if (baudrate > STL_SC26198MAXBAUD)
@@ -3922,11 +3922,11 @@ static void stl_sc26198setport(struct stlport *portp, struct ktermios *tiosp)
* Check what form of modem signaling is required and set it up.
*/
if (tiosp->c_cflag & CLOCAL) {
- portp->flags &= ~ASYNC_CHECK_CD;
+ portp->port.flags &= ~ASYNC_CHECK_CD;
} else {
iopr |= IOPR_DCDCOS;
imron |= IR_IOPORT;
- portp->flags |= ASYNC_CHECK_CD;
+ portp->port.flags |= ASYNC_CHECK_CD;
}
/*
@@ -4174,7 +4174,7 @@ static void stl_sc26198flowctrl(struct stlport *portp, int state)
if (portp == NULL)
return;
- tty = portp->tty;
+ tty = portp->port.tty;
if (tty == NULL)
return;
@@ -4243,7 +4243,7 @@ static void stl_sc26198sendflow(struct stlport *portp, int state)
if (portp == NULL)
return;
- tty = portp->tty;
+ tty = portp->port.tty;
if (tty == NULL)
return;
@@ -4421,8 +4421,8 @@ static void stl_sc26198txisr(struct stlport *portp)
if ((len == 0) || ((len < STL_TXBUFLOW) &&
(test_bit(ASYI_TXLOW, &portp->istate) == 0))) {
set_bit(ASYI_TXLOW, &portp->istate);
- if (portp->tty)
- tty_wakeup(portp->tty);
+ if (portp->port.tty)
+ tty_wakeup(portp->port.tty);
}
if (len == 0) {
@@ -4475,7 +4475,7 @@ static void stl_sc26198rxisr(struct stlport *portp, unsigned int iack)
pr_debug("stl_sc26198rxisr(portp=%p,iack=%x)\n", portp, iack);
- tty = portp->tty;
+ tty = portp->port.tty;
ioaddr = portp->ioaddr;
outb(GIBCR, (ioaddr + XP_ADDR));
len = inb(ioaddr + XP_DATA) + 1;
@@ -4527,7 +4527,7 @@ static void stl_sc26198rxbadch(struct stlport *portp, unsigned char status, char
struct tty_struct *tty;
unsigned int ioaddr;
- tty = portp->tty;
+ tty = portp->port.tty;
ioaddr = portp->ioaddr;
if (status & SR_RXPARITY)
@@ -4544,7 +4544,7 @@ static void stl_sc26198rxbadch(struct stlport *portp, unsigned char status, char
if (portp->rxmarkmsk & status) {
if (status & SR_RXBREAK) {
status = TTY_BREAK;
- if (portp->flags & ASYNC_SAK) {
+ if (portp->port.flags & ASYNC_SAK) {
do_SAK(tty);
BRDENABLE(portp->brdnr, portp->pagenr);
}
diff --git a/include/linux/stallion.h b/include/linux/stallion.h
index 0424d75..336af33 100644
--- a/include/linux/stallion.h
+++ b/include/linux/stallion.h
@@ -69,6 +69,7 @@ struct stlrq {
*/
struct stlport {
unsigned long magic;
+ struct tty_port port;
unsigned int portnr;
unsigned int panelnr;
unsigned int brdnr;
@@ -76,12 +77,10 @@ struct stlport {
int uartaddr;
unsigned int pagenr;
unsigned long istate;
- int flags;
int baud_base;
int custom_divisor;
int close_delay;
int closing_wait;
- int refcount;
int openwaitcnt;
int brklen;
unsigned int sigs;
@@ -92,9 +91,6 @@ struct stlport {
unsigned long clk;
unsigned long hwid;
void *uartp;
- struct tty_struct *tty;
- wait_queue_head_t open_wait;
- wait_queue_head_t close_wait;
comstats_t stats;
struct stlrq tx;
};
^ permalink raw reply related [flat|nested] 32+ messages in thread* [PATCH 13/20] cyclades: use tty_port
2008-05-19 14:50 [PATCH 00/20] Implment a tty port structure and supporting logic Alan Cox
` (11 preceding siblings ...)
2008-05-19 14:51 ` [PATCH 12/20] stallion: " Alan Cox
@ 2008-05-19 14:51 ` Alan Cox
2008-05-19 14:51 ` [PATCH 14/20] gs: " Alan Cox
` (8 subsequent siblings)
21 siblings, 0 replies; 32+ messages in thread
From: Alan Cox @ 2008-05-19 14:51 UTC (permalink / raw)
To: linux-kernel, akpm, greg
From: Alan Cox <alan@redhat.com>
Switch cyclades to use the new tty_port structure
---
drivers/char/cyclades.c | 315 +++++++++++++++++++++++-----------------------
include/linux/cyclades.h | 7 -
2 files changed, 158 insertions(+), 164 deletions(-)
diff --git a/drivers/char/cyclades.c b/drivers/char/cyclades.c
index ef73e72..44fda9b 100644
--- a/drivers/char/cyclades.c
+++ b/drivers/char/cyclades.c
@@ -762,7 +762,7 @@ static int cy_next_channel; /* next minor available */
/*
* This is used to look up the divisor speeds and the timeouts
* We're normally limited to 15 distinct baud rates. The extra
- * are accessed via settings in info->flags.
+ * are accessed via settings in info->port.flags.
* 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
* 10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
* HI VHI
@@ -1003,7 +1003,7 @@ static void cyy_chip_rx(struct cyclades_card *cinfo, int chip,
cy_writeb(base_addr + (CyCAR << index), save_xir);
/* if there is nowhere to put the data, discard it */
- if (info->tty == NULL) {
+ if (info->port.tty == NULL) {
if ((readb(base_addr + (CyRIVR << index)) & CyIVRMask) ==
CyIVRRxEx) { /* exception */
data = readb(base_addr + (CyRDSR << index));
@@ -1015,7 +1015,7 @@ static void cyy_chip_rx(struct cyclades_card *cinfo, int chip,
goto end;
}
/* there is an open port for this data */
- tty = info->tty;
+ tty = info->port.tty;
if ((readb(base_addr + (CyRIVR << index)) & CyIVRMask) ==
CyIVRRxEx) { /* exception */
data = readb(base_addr + (CyRDSR << index));
@@ -1041,7 +1041,7 @@ static void cyy_chip_rx(struct cyclades_card *cinfo, int chip,
readb(base_addr + (CyRDSR <<
index)), TTY_BREAK);
info->icount.rx++;
- if (info->flags & ASYNC_SAK)
+ if (info->port.flags & ASYNC_SAK)
do_SAK(tty);
} else if (data & CyFRAME) {
tty_insert_flip_char(tty,
@@ -1145,7 +1145,7 @@ static void cyy_chip_tx(struct cyclades_card *cinfo, unsigned int chip,
goto end;
}
info = &cinfo->ports[channel + chip * 4];
- if (info->tty == NULL) {
+ if (info->port.tty == NULL) {
cy_writeb(base_addr + (CySRER << index),
readb(base_addr + (CySRER << index)) & ~CyTxRdy);
goto end;
@@ -1190,13 +1190,13 @@ static void cyy_chip_tx(struct cyclades_card *cinfo, unsigned int chip,
}
goto done;
}
- if (info->xmit_buf == NULL) {
+ if (info->port.xmit_buf == NULL) {
cy_writeb(base_addr + (CySRER << index),
readb(base_addr + (CySRER << index)) &
~CyTxRdy);
goto done;
}
- if (info->tty->stopped || info->tty->hw_stopped) {
+ if (info->port.tty->stopped || info->port.tty->hw_stopped) {
cy_writeb(base_addr + (CySRER << index),
readb(base_addr + (CySRER << index)) &
~CyTxRdy);
@@ -1211,7 +1211,7 @@ static void cyy_chip_tx(struct cyclades_card *cinfo, unsigned int chip,
* character. This is necessary because there may not be room
* for the two chars needed to send a NULL.)
*/
- outch = info->xmit_buf[info->xmit_tail];
+ outch = info->port.xmit_buf[info->xmit_tail];
if (outch) {
info->xmit_cnt--;
info->xmit_tail = (info->xmit_tail + 1) &
@@ -1232,7 +1232,7 @@ static void cyy_chip_tx(struct cyclades_card *cinfo, unsigned int chip,
}
done:
- tty_wakeup(info->tty);
+ tty_wakeup(info->port.tty);
end:
/* end of service */
cy_writeb(base_addr + (CyTIR << index), save_xir & 0x3f);
@@ -1256,7 +1256,7 @@ static void cyy_chip_modem(struct cyclades_card *cinfo, int chip,
mdm_change = readb(base_addr + (CyMISR << index));
mdm_status = readb(base_addr + (CyMSVR1 << index));
- if (!info->tty)
+ if (!info->port.tty)
goto end;
if (mdm_change & CyANY_DELTA) {
@@ -1273,29 +1273,29 @@ static void cyy_chip_modem(struct cyclades_card *cinfo, int chip,
wake_up_interruptible(&info->delta_msr_wait);
}
- if ((mdm_change & CyDCD) && (info->flags & ASYNC_CHECK_CD)) {
+ if ((mdm_change & CyDCD) && (info->port.flags & ASYNC_CHECK_CD)) {
if (!(mdm_status & CyDCD)) {
- tty_hangup(info->tty);
- info->flags &= ~ASYNC_NORMAL_ACTIVE;
+ tty_hangup(info->port.tty);
+ info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
}
- wake_up_interruptible(&info->open_wait);
+ wake_up_interruptible(&info->port.open_wait);
}
- if ((mdm_change & CyCTS) && (info->flags & ASYNC_CTS_FLOW)) {
- if (info->tty->hw_stopped) {
+ if ((mdm_change & CyCTS) && (info->port.flags & ASYNC_CTS_FLOW)) {
+ if (info->port.tty->hw_stopped) {
if (mdm_status & CyCTS) {
/* cy_start isn't used
because... !!! */
- info->tty->hw_stopped = 0;
+ info->port.tty->hw_stopped = 0;
cy_writeb(base_addr + (CySRER << index),
readb(base_addr + (CySRER << index)) |
CyTxRdy);
- tty_wakeup(info->tty);
+ tty_wakeup(info->port.tty);
}
} else {
if (!(mdm_status & CyCTS)) {
/* cy_stop isn't used
because ... !!! */
- info->tty->hw_stopped = 1;
+ info->port.tty->hw_stopped = 1;
cy_writeb(base_addr + (CySRER << index),
readb(base_addr + (CySRER << index)) &
~CyTxRdy);
@@ -1449,7 +1449,7 @@ static void cyz_handle_rx(struct cyclades_port *info,
struct BUF_CTRL __iomem *buf_ctrl)
{
struct cyclades_card *cinfo = info->card;
- struct tty_struct *tty = info->tty;
+ struct tty_struct *tty = info->port.tty;
unsigned int char_count;
int len;
#ifdef BLOCKMOVE
@@ -1542,7 +1542,7 @@ static void cyz_handle_tx(struct cyclades_port *info,
struct BUF_CTRL __iomem *buf_ctrl)
{
struct cyclades_card *cinfo = info->card;
- struct tty_struct *tty = info->tty;
+ struct tty_struct *tty = info->port.tty;
u8 data;
unsigned int char_count;
#ifdef BLOCKMOVE
@@ -1585,7 +1585,7 @@ static void cyz_handle_tx(struct cyclades_port *info,
memcpy_toio((char *)(cinfo->base_addr + tx_bufaddr +
tx_put),
- &info->xmit_buf[info->xmit_tail],
+ &info->port.xmit_buf[info->xmit_tail],
small_count);
tx_put = (tx_put + small_count) & (tx_bufsize - 1);
@@ -1597,7 +1597,7 @@ static void cyz_handle_tx(struct cyclades_port *info,
}
#else
while (info->xmit_cnt && char_count) {
- data = info->xmit_buf[info->xmit_tail];
+ data = info->port.xmit_buf[info->xmit_tail];
info->xmit_cnt--;
info->xmit_tail = (info->xmit_tail + 1) &
(SERIAL_XMIT_SIZE - 1);
@@ -1642,7 +1642,7 @@ static void cyz_handle_cmd(struct cyclades_card *cinfo)
special_count = 0;
delta_count = 0;
info = &cinfo->ports[channel];
- tty = info->tty;
+ tty = info->port.tty;
if (tty == NULL)
continue;
@@ -1668,15 +1668,15 @@ static void cyz_handle_cmd(struct cyclades_card *cinfo)
case C_CM_MDCD:
info->icount.dcd++;
delta_count++;
- if (info->flags & ASYNC_CHECK_CD) {
+ if (info->port.flags & ASYNC_CHECK_CD) {
if ((fw_ver > 241 ? ((u_long) param) :
readl(&ch_ctrl->rs_status)) &
C_RS_DCD) {
- wake_up_interruptible(&info->open_wait);
+ wake_up_interruptible(&info->port.open_wait);
} else {
- tty_hangup(info->tty);
- wake_up_interruptible(&info->open_wait);
- info->flags &= ~ASYNC_NORMAL_ACTIVE;
+ tty_hangup(info->port.tty);
+ wake_up_interruptible(&info->port.open_wait);
+ info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
}
}
break;
@@ -1814,7 +1814,7 @@ static void cyz_poll(unsigned long arg)
for (port = 0; port < cinfo->nports; port++) {
info = &cinfo->ports[port];
- tty = info->tty;
+ tty = info->port.tty;
buf_ctrl = &(zfw_ctrl->buf_ctrl[port]);
if (!info->throttle)
@@ -1853,22 +1853,22 @@ static int startup(struct cyclades_port *info)
spin_lock_irqsave(&card->card_lock, flags);
- if (info->flags & ASYNC_INITIALIZED) {
+ if (info->port.flags & ASYNC_INITIALIZED) {
free_page(page);
goto errout;
}
if (!info->type) {
- if (info->tty)
- set_bit(TTY_IO_ERROR, &info->tty->flags);
+ if (info->port.tty)
+ set_bit(TTY_IO_ERROR, &info->port.tty->flags);
free_page(page);
goto errout;
}
- if (info->xmit_buf)
+ if (info->port.xmit_buf)
free_page(page);
else
- info->xmit_buf = (unsigned char *)page;
+ info->port.xmit_buf = (unsigned char *)page;
spin_unlock_irqrestore(&card->card_lock, flags);
@@ -1909,10 +1909,10 @@ static int startup(struct cyclades_port *info)
cy_writeb(base_addr + (CySRER << index),
readb(base_addr + (CySRER << index)) | CyRxData);
- info->flags |= ASYNC_INITIALIZED;
+ info->port.flags |= ASYNC_INITIALIZED;
- 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->xmit_cnt = info->xmit_head = info->xmit_tail = 0;
info->breakon = info->breakoff = 0;
memset((char *)&info->idle_stats, 0, sizeof(info->idle_stats));
@@ -1994,9 +1994,9 @@ static int startup(struct cyclades_port *info)
/* enable send, recv, modem !!! */
- info->flags |= ASYNC_INITIALIZED;
- if (info->tty)
- clear_bit(TTY_IO_ERROR, &info->tty->flags);
+ info->port.flags |= ASYNC_INITIALIZED;
+ if (info->port.tty)
+ clear_bit(TTY_IO_ERROR, &info->port.tty->flags);
info->xmit_cnt = info->xmit_head = info->xmit_tail = 0;
info->breakon = info->breakoff = 0;
memset((char *)&info->idle_stats, 0, sizeof(info->idle_stats));
@@ -2065,7 +2065,7 @@ static void shutdown(struct cyclades_port *info)
void __iomem *base_addr;
int chip, channel, index;
- if (!(info->flags & ASYNC_INITIALIZED))
+ if (!(info->port.flags & ASYNC_INITIALIZED))
return;
card = info->card;
@@ -2087,14 +2087,14 @@ static void shutdown(struct cyclades_port *info)
/* Clear delta_msr_wait queue to avoid mem leaks. */
wake_up_interruptible(&info->delta_msr_wait);
- if (info->xmit_buf) {
+ if (info->port.xmit_buf) {
unsigned char *temp;
- temp = info->xmit_buf;
- info->xmit_buf = NULL;
+ temp = info->port.xmit_buf;
+ info->port.xmit_buf = NULL;
free_page((unsigned long)temp);
}
cy_writeb(base_addr + (CyCAR << index), (u_char) channel);
- if (!info->tty || (info->tty->termios->c_cflag & HUPCL)) {
+ if (!info->port.tty || (info->port.tty->termios->c_cflag & HUPCL)) {
cy_writeb(base_addr + (CyMSVR1 << index), ~CyRTS);
cy_writeb(base_addr + (CyMSVR2 << index), ~CyDTR);
#ifdef CY_DEBUG_DTR
@@ -2108,9 +2108,9 @@ static void shutdown(struct cyclades_port *info)
/* it may be appropriate to clear _XMIT at
some later date (after testing)!!! */
- if (info->tty)
- set_bit(TTY_IO_ERROR, &info->tty->flags);
- info->flags &= ~ASYNC_INITIALIZED;
+ if (info->port.tty)
+ set_bit(TTY_IO_ERROR, &info->port.tty->flags);
+ info->port.flags &= ~ASYNC_INITIALIZED;
spin_unlock_irqrestore(&card->card_lock, flags);
} else {
struct FIRM_ID __iomem *firm_id;
@@ -2136,14 +2136,14 @@ static void shutdown(struct cyclades_port *info)
spin_lock_irqsave(&card->card_lock, flags);
- if (info->xmit_buf) {
+ if (info->port.xmit_buf) {
unsigned char *temp;
- temp = info->xmit_buf;
- info->xmit_buf = NULL;
+ temp = info->port.xmit_buf;
+ info->port.xmit_buf = NULL;
free_page((unsigned long)temp);
}
- if (!info->tty || (info->tty->termios->c_cflag & HUPCL)) {
+ if (!info->port.tty || (info->port.tty->termios->c_cflag & HUPCL)) {
cy_writel(&ch_ctrl[channel].rs_control,
(__u32)(readl(&ch_ctrl[channel].rs_control) &
~(C_RS_RTS | C_RS_DTR)));
@@ -2158,9 +2158,9 @@ static void shutdown(struct cyclades_port *info)
#endif
}
- if (info->tty)
- set_bit(TTY_IO_ERROR, &info->tty->flags);
- info->flags &= ~ASYNC_INITIALIZED;
+ if (info->port.tty)
+ set_bit(TTY_IO_ERROR, &info->port.tty->flags);
+ info->port.flags &= ~ASYNC_INITIALIZED;
spin_unlock_irqrestore(&card->card_lock, flags);
}
@@ -2194,10 +2194,10 @@ block_til_ready(struct tty_struct *tty, struct file *filp,
* If the device is in the middle of being closed, then block
* until it's done, and then try again.
*/
- if (tty_hung_up_p(filp) || (info->flags & ASYNC_CLOSING)) {
- wait_event_interruptible(info->close_wait,
- !(info->flags & ASYNC_CLOSING));
- return (info->flags & ASYNC_HUP_NOTIFY) ? -EAGAIN: -ERESTARTSYS;
+ if (tty_hung_up_p(filp) || (info->port.flags & ASYNC_CLOSING)) {
+ wait_event_interruptible(info->port.close_wait,
+ !(info->port.flags & ASYNC_CLOSING));
+ return (info->port.flags & ASYNC_HUP_NOTIFY) ? -EAGAIN: -ERESTARTSYS;
}
/*
@@ -2206,32 +2206,32 @@ block_til_ready(struct tty_struct *tty, struct file *filp,
*/
if ((filp->f_flags & O_NONBLOCK) ||
(tty->flags & (1 << TTY_IO_ERROR))) {
- info->flags |= ASYNC_NORMAL_ACTIVE;
+ info->port.flags |= ASYNC_NORMAL_ACTIVE;
return 0;
}
/*
* Block waiting for the 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
* cy_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);
#ifdef CY_DEBUG_OPEN
printk(KERN_DEBUG "cyc block_til_ready before block: ttyC%d, "
- "count = %d\n", info->line, info->count);
+ "count = %d\n", info->line, info->port.count);
#endif
spin_lock_irqsave(&cinfo->card_lock, flags);
if (!tty_hung_up_p(filp))
- info->count--;
+ info->port.count--;
spin_unlock_irqrestore(&cinfo->card_lock, flags);
#ifdef CY_DEBUG_COUNT
printk(KERN_DEBUG "cyc block_til_ready: (%d): decrementing count to "
- "%d\n", current->pid, info->count);
+ "%d\n", current->pid, info->port.count);
#endif
- info->blocked_open++;
+ info->port.blocked_open++;
if (!IS_CYC_Z(*cinfo)) {
chip = channel >> 2;
@@ -2260,8 +2260,8 @@ 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) ?
+ !(info->port.flags & ASYNC_INITIALIZED)) {
+ retval = ((info->port.flags & ASYNC_HUP_NOTIFY) ?
-EAGAIN : -ERESTARTSYS);
break;
}
@@ -2269,7 +2269,7 @@ block_til_ready(struct tty_struct *tty, struct file *filp,
spin_lock_irqsave(&cinfo->card_lock, flags);
cy_writeb(base_addr + (CyCAR << index),
(u_char) channel);
- if (!(info->flags & ASYNC_CLOSING) && (C_CLOCAL(tty) ||
+ if (!(info->port.flags & ASYNC_CLOSING) && (C_CLOCAL(tty) ||
(readb(base_addr +
(CyMSVR1 << index)) & CyDCD))) {
spin_unlock_irqrestore(&cinfo->card_lock, flags);
@@ -2284,7 +2284,7 @@ block_til_ready(struct tty_struct *tty, struct file *filp,
#ifdef CY_DEBUG_OPEN
printk(KERN_DEBUG "cyc block_til_ready blocking: "
"ttyC%d, count = %d\n",
- info->line, info->count);
+ info->line, info->port.count);
#endif
schedule();
}
@@ -2298,7 +2298,7 @@ block_til_ready(struct tty_struct *tty, struct file *filp,
firm_id = base_addr + ID_ADDRESS;
if (!ISZLOADED(*cinfo)) {
__set_current_state(TASK_RUNNING);
- remove_wait_queue(&info->open_wait, &wait);
+ remove_wait_queue(&info->port.open_wait, &wait);
return -EINVAL;
}
@@ -2327,12 +2327,12 @@ 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) ?
+ !(info->port.flags & ASYNC_INITIALIZED)) {
+ retval = ((info->port.flags & ASYNC_HUP_NOTIFY) ?
-EAGAIN : -ERESTARTSYS);
break;
}
- if (!(info->flags & ASYNC_CLOSING) && (C_CLOCAL(tty) ||
+ if (!(info->port.flags & ASYNC_CLOSING) && (C_CLOCAL(tty) ||
(readl(&ch_ctrl[channel].rs_status) &
C_RS_DCD))) {
break;
@@ -2344,28 +2344,28 @@ block_til_ready(struct tty_struct *tty, struct file *filp,
#ifdef CY_DEBUG_OPEN
printk(KERN_DEBUG "cyc block_til_ready blocking: "
"ttyC%d, count = %d\n",
- info->line, info->count);
+ info->line, info->port.count);
#endif
schedule();
}
}
__set_current_state(TASK_RUNNING);
- remove_wait_queue(&info->open_wait, &wait);
+ remove_wait_queue(&info->port.open_wait, &wait);
if (!tty_hung_up_p(filp)) {
- info->count++;
+ info->port.count++;
#ifdef CY_DEBUG_COUNT
printk(KERN_DEBUG "cyc:block_til_ready (%d): incrementing "
- "count to %d\n", current->pid, info->count);
+ "count to %d\n", current->pid, info->port.count);
#endif
}
- info->blocked_open--;
+ info->port.blocked_open--;
#ifdef CY_DEBUG_OPEN
printk(KERN_DEBUG "cyc:block_til_ready after blocking: ttyC%d, "
- "count = %d\n", info->line, info->count);
+ "count = %d\n", info->line, info->port.count);
#endif
if (retval)
return retval;
- info->flags |= ASYNC_NORMAL_ACTIVE;
+ info->port.flags |= ASYNC_NORMAL_ACTIVE;
return 0;
} /* block_til_ready */
@@ -2456,27 +2456,27 @@ static int cy_open(struct tty_struct *tty, struct file *filp)
printk(KERN_DEBUG "cyc:cy_open ttyC%d\n", info->line);
#endif
tty->driver_data = info;
- info->tty = tty;
+ info->port.tty = tty;
if (serial_paranoia_check(info, tty->name, "cy_open"))
return -ENODEV;
#ifdef CY_DEBUG_OPEN
printk(KERN_DEBUG "cyc:cy_open ttyC%d, count = %d\n", info->line,
- info->count);
+ info->port.count);
#endif
- info->count++;
+ info->port.count++;
#ifdef CY_DEBUG_COUNT
printk(KERN_DEBUG "cyc:cy_open (%d): incrementing count to %d\n",
- current->pid, info->count);
+ current->pid, info->port.count);
#endif
/*
* If the port is the middle of closing, bail out now
*/
- if (tty_hung_up_p(filp) || (info->flags & ASYNC_CLOSING)) {
- wait_event_interruptible(info->close_wait,
- !(info->flags & ASYNC_CLOSING));
- return (info->flags & ASYNC_HUP_NOTIFY) ? -EAGAIN: -ERESTARTSYS;
+ if (tty_hung_up_p(filp) || (info->port.flags & ASYNC_CLOSING)) {
+ wait_event_interruptible(info->port.close_wait,
+ !(info->port.flags & ASYNC_CLOSING));
+ return (info->port.flags & ASYNC_HUP_NOTIFY) ? -EAGAIN: -ERESTARTSYS;
}
/*
@@ -2641,9 +2641,9 @@ static void cy_close(struct tty_struct *tty, struct file *filp)
}
#ifdef CY_DEBUG_OPEN
printk(KERN_DEBUG "cyc:cy_close ttyC%d, count = %d\n", info->line,
- info->count);
+ info->port.count);
#endif
- if ((tty->count == 1) && (info->count != 1)) {
+ if ((tty->count == 1) && (info->port.count != 1)) {
/*
* Uh, oh. tty->count is 1, which means that the tty
* structure will be freed. Info->count should always
@@ -2652,24 +2652,24 @@ static void cy_close(struct tty_struct *tty, struct file *filp)
* serial port won't be shutdown.
*/
printk(KERN_ERR "cyc:cy_close: bad serial port count; "
- "tty->count is 1, info->count is %d\n", info->count);
- info->count = 1;
+ "tty->count is 1, info->port.count is %d\n", info->port.count);
+ info->port.count = 1;
}
#ifdef CY_DEBUG_COUNT
printk(KERN_DEBUG "cyc:cy_close at (%d): decrementing count to %d\n",
- current->pid, info->count - 1);
+ current->pid, info->port.count - 1);
#endif
- if (--info->count < 0) {
+ if (--info->port.count < 0) {
#ifdef CY_DEBUG_COUNT
printk(KERN_DEBUG "cyc:cyc_close setting count to 0\n");
#endif
- info->count = 0;
+ info->port.count = 0;
}
- if (info->count) {
+ if (info->port.count) {
spin_unlock_irqrestore(&card->card_lock, flags);
return;
}
- info->flags |= ASYNC_CLOSING;
+ info->port.flags |= ASYNC_CLOSING;
/*
* Now we wait for the transmit buffer to clear; and we notify
@@ -2692,7 +2692,7 @@ static void cy_close(struct tty_struct *tty, struct file *filp)
cy_writeb(base_addr + (CyCAR << index), (u_char) channel);
cy_writeb(base_addr + (CySRER << index),
readb(base_addr + (CySRER << index)) & ~CyRxData);
- if (info->flags & ASYNC_INITIALIZED) {
+ if (info->port.flags & ASYNC_INITIALIZED) {
/* Waiting for on-board buffers to be empty before
closing the port */
spin_unlock_irqrestore(&card->card_lock, flags);
@@ -2731,18 +2731,18 @@ static void cy_close(struct tty_struct *tty, struct file *filp)
spin_lock_irqsave(&card->card_lock, flags);
tty->closing = 0;
- info->tty = NULL;
- if (info->blocked_open) {
+ info->port.tty = NULL;
+ if (info->port.blocked_open) {
spin_unlock_irqrestore(&card->card_lock, flags);
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);
spin_lock_irqsave(&card->card_lock, flags);
}
- info->flags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_CLOSING);
- wake_up_interruptible(&info->close_wait);
+ info->port.flags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_CLOSING);
+ wake_up_interruptible(&info->port.close_wait);
#ifdef CY_DEBUG_OTHER
printk(KERN_DEBUG "cyc:cy_close done\n");
@@ -2777,7 +2777,7 @@ static int cy_write(struct tty_struct *tty, const unsigned char *buf, int count)
if (serial_paranoia_check(info, tty->name, "cy_write"))
return 0;
- if (!info->xmit_buf)
+ if (!info->port.xmit_buf)
return 0;
spin_lock_irqsave(&info->card->card_lock, flags);
@@ -2788,7 +2788,7 @@ static int cy_write(struct tty_struct *tty, const unsigned char *buf, int count)
if (c <= 0)
break;
- memcpy(info->xmit_buf + info->xmit_head, buf, c);
+ memcpy(info->port.xmit_buf + info->xmit_head, buf, c);
info->xmit_head = (info->xmit_head + c) &
(SERIAL_XMIT_SIZE - 1);
info->xmit_cnt += c;
@@ -2826,7 +2826,7 @@ static int cy_put_char(struct tty_struct *tty, unsigned char ch)
if (serial_paranoia_check(info, tty->name, "cy_put_char"))
return 0;
- if (!info->xmit_buf)
+ if (!info->port.xmit_buf)
return 0;
spin_lock_irqsave(&info->card->card_lock, flags);
@@ -2835,7 +2835,7 @@ static int cy_put_char(struct tty_struct *tty, unsigned char ch)
return 0;
}
- info->xmit_buf[info->xmit_head++] = ch;
+ info->port.xmit_buf[info->xmit_head++] = ch;
info->xmit_head &= SERIAL_XMIT_SIZE - 1;
info->xmit_cnt++;
info->idle_stats.xmit_bytes++;
@@ -2860,7 +2860,7 @@ static void cy_flush_chars(struct tty_struct *tty)
return;
if (info->xmit_cnt <= 0 || tty->stopped || tty->hw_stopped ||
- !info->xmit_buf)
+ !info->port.xmit_buf)
return;
start_xmit(info);
@@ -2988,27 +2988,27 @@ static void set_line_char(struct cyclades_port *info)
int baud, baud_rate = 0;
int i;
- if (!info->tty || !info->tty->termios)
+ if (!info->port.tty || !info->port.tty->termios)
return;
if (info->line == -1)
return;
- cflag = info->tty->termios->c_cflag;
- iflag = info->tty->termios->c_iflag;
+ cflag = info->port.tty->termios->c_cflag;
+ iflag = info->port.tty->termios->c_iflag;
/*
* Set up the tty->alt_speed kludge
*/
- if (info->tty) {
- if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
- info->tty->alt_speed = 57600;
- if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
- info->tty->alt_speed = 115200;
- if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
- info->tty->alt_speed = 230400;
- if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
- info->tty->alt_speed = 460800;
+ if (info->port.tty) {
+ if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
+ info->port.tty->alt_speed = 57600;
+ if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
+ info->port.tty->alt_speed = 115200;
+ if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
+ info->port.tty->alt_speed = 230400;
+ if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
+ info->port.tty->alt_speed = 460800;
}
card = info->card;
@@ -3020,8 +3020,8 @@ static void set_line_char(struct cyclades_port *info)
index = card->bus_index;
/* baud rate */
- baud = tty_get_baud_rate(info->tty);
- if (baud == 38400 && (info->flags & ASYNC_SPD_MASK) ==
+ baud = tty_get_baud_rate(info->port.tty);
+ if (baud == 38400 && (info->port.flags & ASYNC_SPD_MASK) ==
ASYNC_SPD_CUST) {
if (info->custom_divisor)
baud_rate = info->baud / info->custom_divisor;
@@ -3038,7 +3038,7 @@ static void set_line_char(struct cyclades_port *info)
if (i == 20)
i = 19; /* CD1400_MAX_SPEED */
- if (baud == 38400 && (info->flags & ASYNC_SPD_MASK) ==
+ if (baud == 38400 && (info->port.flags & ASYNC_SPD_MASK) ==
ASYNC_SPD_CUST) {
cyy_baud_calc(info, baud_rate);
} else {
@@ -3059,7 +3059,7 @@ static void set_line_char(struct cyclades_port *info)
/* get it right for 134.5 baud */
info->timeout = (info->xmit_fifo_size * HZ * 30 / 269) +
2;
- } else if (baud == 38400 && (info->flags & ASYNC_SPD_MASK) ==
+ } else if (baud == 38400 && (info->port.flags & ASYNC_SPD_MASK) ==
ASYNC_SPD_CUST) {
info->timeout = (info->xmit_fifo_size * HZ * 15 /
baud_rate) + 2;
@@ -3108,16 +3108,16 @@ static void set_line_char(struct cyclades_port *info)
/* CTS flow control flag */
if (cflag & CRTSCTS) {
- info->flags |= ASYNC_CTS_FLOW;
+ info->port.flags |= ASYNC_CTS_FLOW;
info->cor2 |= CyCtsAE;
} else {
- info->flags &= ~ASYNC_CTS_FLOW;
+ info->port.flags &= ~ASYNC_CTS_FLOW;
info->cor2 &= ~CyCtsAE;
}
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;
/***********************************************
The hardware option, CyRtsAO, presents RTS when
@@ -3146,8 +3146,8 @@ static void set_line_char(struct cyclades_port *info)
/* set line characteristics according configuration */
cy_writeb(base_addr + (CySCHR1 << index),
- START_CHAR(info->tty));
- cy_writeb(base_addr + (CySCHR2 << index), STOP_CHAR(info->tty));
+ START_CHAR(info->port.tty));
+ cy_writeb(base_addr + (CySCHR2 << index), STOP_CHAR(info->port.tty));
cy_writeb(base_addr + (CyCOR1 << index), info->cor1);
cy_writeb(base_addr + (CyCOR2 << index), info->cor2);
cy_writeb(base_addr + (CyCOR3 << index), info->cor3);
@@ -3163,7 +3163,7 @@ static void set_line_char(struct cyclades_port *info)
(info->default_timeout ? info->default_timeout : 0x02));
/* 10ms rx timeout */
- if (C_CLOCAL(info->tty)) {
+ if (C_CLOCAL(info->port.tty)) {
/* without modem intr */
cy_writeb(base_addr + (CySRER << index),
readb(base_addr + (CySRER << index)) | CyMdmCh);
@@ -3226,8 +3226,8 @@ static void set_line_char(struct cyclades_port *info)
#endif
}
- if (info->tty)
- clear_bit(TTY_IO_ERROR, &info->tty->flags);
+ if (info->port.tty)
+ clear_bit(TTY_IO_ERROR, &info->port.tty->flags);
spin_unlock_irqrestore(&card->card_lock, flags);
} else {
@@ -3250,8 +3250,8 @@ static void set_line_char(struct cyclades_port *info)
buf_ctrl = &zfw_ctrl->buf_ctrl[channel];
/* baud rate */
- baud = tty_get_baud_rate(info->tty);
- if (baud == 38400 && (info->flags & ASYNC_SPD_MASK) ==
+ baud = tty_get_baud_rate(info->port.tty);
+ if (baud == 38400 && (info->port.flags & ASYNC_SPD_MASK) ==
ASYNC_SPD_CUST) {
if (info->custom_divisor)
baud_rate = info->baud / info->custom_divisor;
@@ -3266,7 +3266,7 @@ static void set_line_char(struct cyclades_port *info)
/* get it right for 134.5 baud */
info->timeout = (info->xmit_fifo_size * HZ * 30 / 269) +
2;
- } else if (baud == 38400 && (info->flags & ASYNC_SPD_MASK) ==
+ } else if (baud == 38400 && (info->port.flags & ASYNC_SPD_MASK) ==
ASYNC_SPD_CUST) {
info->timeout = (info->xmit_fifo_size * HZ * 15 /
baud_rate) + 2;
@@ -3318,7 +3318,7 @@ static void set_line_char(struct cyclades_port *info)
}
/* As the HW flow control is done in firmware, the driver
doesn't need to care about it */
- info->flags &= ~ASYNC_CTS_FLOW;
+ info->port.flags &= ~ASYNC_CTS_FLOW;
/* XON/XOFF/XANY flow control flags */
sw_flow = 0;
@@ -3337,9 +3337,9 @@ static void set_line_char(struct cyclades_port *info)
/* CD sensitivity */
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;
if (baud == 0) { /* baud rate is zero, turn off line */
cy_writel(&ch_ctrl->rs_control,
@@ -3361,8 +3361,8 @@ static void set_line_char(struct cyclades_port *info)
"was %x\n", info->line, retval);
}
- if (info->tty)
- clear_bit(TTY_IO_ERROR, &info->tty->flags);
+ if (info->port.tty)
+ clear_bit(TTY_IO_ERROR, &info->port.tty->flags);
}
} /* set_line_char */
@@ -3381,7 +3381,7 @@ get_serial_info(struct cyclades_port *info,
tmp.port = (info->card - cy_card) * 0x100 + info->line -
cinfo->first_line;
tmp.irq = cinfo->irq;
- tmp.flags = info->flags;
+ tmp.flags = info->port.flags;
tmp.close_delay = info->close_delay;
tmp.closing_wait = info->closing_wait;
tmp.baud_base = info->baud;
@@ -3406,9 +3406,9 @@ set_serial_info(struct cyclades_port *info,
new_serial.baud_base != info->baud ||
(new_serial.flags & ASYNC_FLAGS &
~ASYNC_USR_MASK) !=
- (info->flags & ASYNC_FLAGS & ~ASYNC_USR_MASK))
+ (info->port.flags & ASYNC_FLAGS & ~ASYNC_USR_MASK))
return -EPERM;
- info->flags = (info->flags & ~ASYNC_USR_MASK) |
+ info->port.flags = (info->port.flags & ~ASYNC_USR_MASK) |
(new_serial.flags & ASYNC_USR_MASK);
info->baud = new_serial.baud_base;
info->custom_divisor = new_serial.custom_divisor;
@@ -3422,13 +3422,13 @@ set_serial_info(struct cyclades_port *info,
info->baud = new_serial.baud_base;
info->custom_divisor = new_serial.custom_divisor;
- info->flags = (info->flags & ~ASYNC_FLAGS) |
+ info->port.flags = (info->port.flags & ~ASYNC_FLAGS) |
(new_serial.flags & ASYNC_FLAGS);
info->close_delay = new_serial.close_delay * HZ / 100;
info->closing_wait = new_serial.closing_wait * HZ / 100;
check_and_exit:
- if (info->flags & ASYNC_INITIALIZED) {
+ if (info->port.flags & ASYNC_INITIALIZED) {
set_line_char(info);
return 0;
} else {
@@ -4097,7 +4097,7 @@ static void cy_set_termios(struct tty_struct *tty, struct ktermios *old_termios)
*/
if (!(old_termios->c_cflag & CLOCAL) &&
(tty->termios->c_cflag & CLOCAL))
- wake_up_interruptible(&info->open_wait);
+ wake_up_interruptible(&info->port.open_wait);
#endif
} /* cy_set_termios */
@@ -4326,14 +4326,14 @@ static void cy_hangup(struct tty_struct *tty)
cy_flush_buffer(tty);
shutdown(info);
- info->count = 0;
+ info->port.count = 0;
#ifdef CY_DEBUG_COUNT
printk(KERN_DEBUG "cyc:cy_hangup (%d): setting count to 0\n",
current->pid);
#endif
- info->tty = NULL;
- info->flags &= ~ASYNC_NORMAL_ACTIVE;
- wake_up_interruptible(&info->open_wait);
+ info->port.tty = NULL;
+ info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
+ wake_up_interruptible(&info->port.open_wait);
} /* cy_hangup */
/*
@@ -4379,12 +4379,11 @@ static int __devinit cy_init_card(struct cyclades_card *cinfo)
info->magic = CYCLADES_MAGIC;
info->card = cinfo;
info->line = port;
- info->flags = STD_COM_FLAGS;
info->closing_wait = CLOSING_WAIT_DELAY;
info->close_delay = 5 * HZ / 10;
- init_waitqueue_head(&info->open_wait);
- init_waitqueue_head(&info->close_wait);
+ tty_port_init(&info->port);
+ info->port.flags = STD_COM_FLAGS;
init_completion(&info->shutdown_wait);
init_waitqueue_head(&info->delta_msr_wait);
@@ -5237,7 +5236,7 @@ cyclades_get_proc_info(char *buf, char **start, off_t offset, int length,
for (j = 0; j < cy_card[i].nports; j++) {
info = &cy_card[i].ports[j];
- if (info->count)
+ if (info->port.count)
size = sprintf(buf + len, "%3d %8lu %10lu %8lu "
"%10lu %8lu %9lu %6ld\n", info->line,
(cur_jifs - info->idle_stats.in_use) /
@@ -5246,7 +5245,7 @@ cyclades_get_proc_info(char *buf, char **start, off_t offset, int length,
HZ, info->idle_stats.recv_bytes,
(cur_jifs - info->idle_stats.recv_idle)/
HZ, info->idle_stats.overruns,
- (long)info->tty->ldisc.num);
+ (long)info->port.tty->ldisc.num);
else
size = sprintf(buf + len, "%3d %8lu %10lu %8lu "
"%10lu %8lu %9lu %6ld\n",
diff --git a/include/linux/cyclades.h b/include/linux/cyclades.h
index 504cb2c..a982b74 100644
--- a/include/linux/cyclades.h
+++ b/include/linux/cyclades.h
@@ -550,11 +550,11 @@ struct cyclades_icount {
struct cyclades_port {
int magic;
+ struct tty_port port;
struct cyclades_card *card;
int line;
int flags; /* defined in tty.h */
int type; /* UART type */
- struct tty_struct *tty;
int read_status_mask;
int ignore_status_mask;
int timeout;
@@ -569,11 +569,8 @@ struct cyclades_port {
u8 x_char; /* to be pushed out ASAP */
int close_delay;
unsigned short closing_wait;
- int count; /* # of fd on device */
int breakon;
int breakoff;
- int blocked_open; /* # of blocked opens */
- unsigned char *xmit_buf;
int xmit_head;
int xmit_tail;
int xmit_cnt;
@@ -583,8 +580,6 @@ struct cyclades_port {
struct cyclades_monitor mon;
struct cyclades_idle_stats idle_stats;
struct cyclades_icount icount;
- wait_queue_head_t open_wait;
- wait_queue_head_t close_wait;
struct completion shutdown_wait;
wait_queue_head_t delta_msr_wait;
int throttle;
^ permalink raw reply related [flat|nested] 32+ messages in thread* [PATCH 14/20] gs: use tty_port
2008-05-19 14:50 [PATCH 00/20] Implment a tty port structure and supporting logic Alan Cox
` (12 preceding siblings ...)
2008-05-19 14:51 ` [PATCH 13/20] cyclades: " Alan Cox
@ 2008-05-19 14:51 ` Alan Cox
2008-05-19 14:51 ` [PATCH 15/20] serial: " Alan Cox
` (7 subsequent siblings)
21 siblings, 0 replies; 32+ messages in thread
From: Alan Cox @ 2008-05-19 14:51 UTC (permalink / raw)
To: linux-kernel, akpm, greg
From: Alan Cox <alan@redhat.com>
Switch drivers using the old "generic serial" driver to use the tty_port
structures
---
drivers/char/generic_serial.c | 158 ++++++++++++++++++++--------------------
drivers/char/rio/rio_linux.c | 20 +++--
drivers/char/rio/riocmd.c | 10 +--
drivers/char/rio/riointr.c | 10 +--
drivers/char/rio/rioparam.c | 2 -
drivers/char/rio/riotty.c | 16 ++--
drivers/char/sx.c | 115 ++++++++++++++---------------
include/linux/generic_serial.h | 8 +-
8 files changed, 166 insertions(+), 173 deletions(-)
diff --git a/drivers/char/generic_serial.c b/drivers/char/generic_serial.c
index 252f73e..4bde737 100644
--- a/drivers/char/generic_serial.c
+++ b/drivers/char/generic_serial.c
@@ -60,7 +60,7 @@ int gs_put_char(struct tty_struct * tty, unsigned char ch)
if (!port) return 0;
- if (! (port->flags & ASYNC_INITIALIZED)) return 0;
+ if (! (port->port.flags & ASYNC_INITIALIZED)) return 0;
/* Take a lock on the serial tranmit buffer! */
mutex_lock(& port->port_write_mutex);
@@ -103,7 +103,7 @@ int gs_write(struct tty_struct * tty,
if (!port) return 0;
- if (! (port->flags & ASYNC_INITIALIZED))
+ if (! (port->port.flags & ASYNC_INITIALIZED))
return 0;
/* get exclusive "write" access to this port (problem 3) */
@@ -141,13 +141,13 @@ int gs_write(struct tty_struct * tty,
mutex_unlock(& port->port_write_mutex);
gs_dprintk (GS_DEBUG_WRITE, "write: interrupts are %s\n",
- (port->flags & GS_TX_INTEN)?"enabled": "disabled");
+ (port->port.flags & GS_TX_INTEN)?"enabled": "disabled");
if (port->xmit_cnt &&
!tty->stopped &&
!tty->hw_stopped &&
- !(port->flags & GS_TX_INTEN)) {
- port->flags |= GS_TX_INTEN;
+ !(port->port.flags & GS_TX_INTEN)) {
+ port->port.flags |= GS_TX_INTEN;
port->rd->enable_tx_interrupts (port);
}
func_exit ();
@@ -208,7 +208,7 @@ static int gs_wait_tx_flushed (void * ptr, unsigned long timeout)
gs_dprintk (GS_DEBUG_FLUSH, "port=%p.\n", port);
if (port) {
gs_dprintk (GS_DEBUG_FLUSH, "xmit_cnt=%x, xmit_buf=%p, tty=%p.\n",
- port->xmit_cnt, port->xmit_buf, port->tty);
+ port->xmit_cnt, port->xmit_buf, port->port.tty);
}
if (!port || port->xmit_cnt < 0 || !port->xmit_buf) {
@@ -217,7 +217,7 @@ static int gs_wait_tx_flushed (void * ptr, unsigned long timeout)
return -EINVAL; /* This is an error which we don't know how to handle. */
}
- rcib = gs_real_chars_in_buffer(port->tty);
+ rcib = gs_real_chars_in_buffer(port->port.tty);
if(rcib <= 0) {
gs_dprintk (GS_DEBUG_FLUSH, "nothing to wait for.\n");
@@ -236,7 +236,7 @@ static int gs_wait_tx_flushed (void * ptr, unsigned long timeout)
/* the expression is actually jiffies < end_jiffies, but that won't
work around the wraparound. Tricky eh? */
- while ((charsleft = gs_real_chars_in_buffer (port->tty)) &&
+ while ((charsleft = gs_real_chars_in_buffer (port->port.tty)) &&
time_after (end_jiffies, jiffies)) {
/* Units check:
chars * (bits/char) * (jiffies /sec) / (bits/sec) = jiffies!
@@ -309,7 +309,7 @@ void gs_flush_chars(struct tty_struct * tty)
}
/* Beats me -- REW */
- port->flags |= GS_TX_INTEN;
+ port->port.flags |= GS_TX_INTEN;
port->rd->enable_tx_interrupts (port);
func_exit ();
}
@@ -329,8 +329,8 @@ void gs_stop(struct tty_struct * tty)
if (port->xmit_cnt &&
port->xmit_buf &&
- (port->flags & GS_TX_INTEN) ) {
- port->flags &= ~GS_TX_INTEN;
+ (port->port.flags & GS_TX_INTEN) ) {
+ port->port.flags &= ~GS_TX_INTEN;
port->rd->disable_tx_interrupts (port);
}
func_exit ();
@@ -349,8 +349,8 @@ void gs_start(struct tty_struct * tty)
if (port->xmit_cnt &&
port->xmit_buf &&
- !(port->flags & GS_TX_INTEN) ) {
- port->flags |= GS_TX_INTEN;
+ !(port->port.flags & GS_TX_INTEN) ) {
+ port->port.flags |= GS_TX_INTEN;
port->rd->enable_tx_interrupts (port);
}
func_exit ();
@@ -365,7 +365,7 @@ static void gs_shutdown_port (struct gs_port *port)
if (!port) return;
- if (!(port->flags & ASYNC_INITIALIZED))
+ if (!(port->port.flags & ASYNC_INITIALIZED))
return;
spin_lock_irqsave(&port->driver_lock, flags);
@@ -375,12 +375,12 @@ static void gs_shutdown_port (struct gs_port *port)
port->xmit_buf = NULL;
}
- if (port->tty)
- set_bit(TTY_IO_ERROR, &port->tty->flags);
+ if (port->port.tty)
+ set_bit(TTY_IO_ERROR, &port->port.tty->flags);
port->rd->shutdown_port (port);
- port->flags &= ~ASYNC_INITIALIZED;
+ port->port.flags &= ~ASYNC_INITIALIZED;
spin_unlock_irqrestore(&port->driver_lock, flags);
func_exit();
@@ -396,16 +396,16 @@ void gs_hangup(struct tty_struct *tty)
if (!tty) return;
port = tty->driver_data;
- tty = port->tty;
+ tty = port->port.tty;
if (!tty)
return;
gs_shutdown_port (port);
- port->flags &= ~(ASYNC_NORMAL_ACTIVE|GS_ACTIVE);
- port->tty = NULL;
- port->count = 0;
+ port->port.flags &= ~(ASYNC_NORMAL_ACTIVE|GS_ACTIVE);
+ port->port.tty = NULL;
+ port->port.count = 0;
- wake_up_interruptible(&port->open_wait);
+ wake_up_interruptible(&port->port.open_wait);
func_exit ();
}
@@ -424,7 +424,7 @@ int gs_block_til_ready(void *port_, struct file * filp)
if (!port) return 0;
- tty = port->tty;
+ tty = port->port.tty;
if (!tty) return 0;
@@ -433,9 +433,9 @@ int gs_block_til_ready(void *port_, struct file * filp)
* If the device is in the middle of being closed, then block
* until it's done, and then try again.
*/
- if (tty_hung_up_p(filp) || port->flags & ASYNC_CLOSING) {
- interruptible_sleep_on(&port->close_wait);
- if (port->flags & ASYNC_HUP_NOTIFY)
+ if (tty_hung_up_p(filp) || port->port.flags & ASYNC_CLOSING) {
+ interruptible_sleep_on(&port->port.close_wait);
+ if (port->port.flags & ASYNC_HUP_NOTIFY)
return -EAGAIN;
else
return -ERESTARTSYS;
@@ -449,7 +449,7 @@ int gs_block_til_ready(void *port_, struct file * filp)
*/
if ((filp->f_flags & O_NONBLOCK) ||
(tty->flags & (1 << TTY_IO_ERROR))) {
- port->flags |= ASYNC_NORMAL_ACTIVE;
+ port->port.flags |= ASYNC_NORMAL_ACTIVE;
return 0;
}
@@ -461,34 +461,34 @@ int gs_block_til_ready(void *port_, struct file * filp)
/*
* Block waiting for the carrier detect and the line to become
* free (i.e., not in use by the callout). While we are in
- * this loop, port->count is dropped by one, so that
+ * this loop, port->port.count is dropped by one, so that
* rs_close() knows when to free things. We restore it upon
* exit, either normal or abnormal.
*/
retval = 0;
- add_wait_queue(&port->open_wait, &wait);
+ add_wait_queue(&port->port.open_wait, &wait);
gs_dprintk (GS_DEBUG_BTR, "after add waitq.\n");
spin_lock_irqsave(&port->driver_lock, flags);
if (!tty_hung_up_p(filp)) {
- port->count--;
+ port->port.count--;
}
spin_unlock_irqrestore(&port->driver_lock, flags);
- port->blocked_open++;
+ port->port.blocked_open++;
while (1) {
CD = port->rd->get_CD (port);
gs_dprintk (GS_DEBUG_BTR, "CD is now %d.\n", CD);
set_current_state (TASK_INTERRUPTIBLE);
if (tty_hung_up_p(filp) ||
- !(port->flags & ASYNC_INITIALIZED)) {
- if (port->flags & ASYNC_HUP_NOTIFY)
+ !(port->port.flags & ASYNC_INITIALIZED)) {
+ if (port->port.flags & ASYNC_HUP_NOTIFY)
retval = -EAGAIN;
else
retval = -ERESTARTSYS;
break;
}
- if (!(port->flags & ASYNC_CLOSING) &&
+ if (!(port->port.flags & ASYNC_CLOSING) &&
(do_clocal || CD))
break;
gs_dprintk (GS_DEBUG_BTR, "signal_pending is now: %d (%lx)\n",
@@ -500,17 +500,17 @@ int gs_block_til_ready(void *port_, struct file * filp)
schedule();
}
gs_dprintk (GS_DEBUG_BTR, "Got out of the loop. (%d)\n",
- port->blocked_open);
+ port->port.blocked_open);
set_current_state (TASK_RUNNING);
- remove_wait_queue(&port->open_wait, &wait);
+ remove_wait_queue(&port->port.open_wait, &wait);
if (!tty_hung_up_p(filp)) {
- port->count++;
+ port->port.count++;
}
- port->blocked_open--;
+ port->port.blocked_open--;
if (retval)
return retval;
- port->flags |= ASYNC_NORMAL_ACTIVE;
+ port->port.flags |= ASYNC_NORMAL_ACTIVE;
func_exit ();
return 0;
}
@@ -529,10 +529,10 @@ void gs_close(struct tty_struct * tty, struct file * filp)
if (!port) return;
- if (!port->tty) {
+ if (!port->port.tty) {
/* This seems to happen when this is called from vhangup. */
- gs_dprintk (GS_DEBUG_CLOSE, "gs: Odd: port->tty is NULL\n");
- port->tty = tty;
+ gs_dprintk (GS_DEBUG_CLOSE, "gs: Odd: port->port.tty is NULL\n");
+ port->port.tty = tty;
}
spin_lock_irqsave(&port->driver_lock, flags);
@@ -545,23 +545,23 @@ void gs_close(struct tty_struct * tty, struct file * filp)
return;
}
- if ((tty->count == 1) && (port->count != 1)) {
+ if ((tty->count == 1) && (port->port.count != 1)) {
printk(KERN_ERR "gs: gs_close port %p: bad port count;"
- " tty->count is 1, port count is %d\n", port, port->count);
- port->count = 1;
+ " tty->count is 1, port count is %d\n", port, port->port.count);
+ port->port.count = 1;
}
- if (--port->count < 0) {
- printk(KERN_ERR "gs: gs_close port %p: bad port count: %d\n", port, port->count);
- port->count = 0;
+ if (--port->port.count < 0) {
+ printk(KERN_ERR "gs: gs_close port %p: bad port count: %d\n", port, port->port.count);
+ port->port.count = 0;
}
- if (port->count) {
- gs_dprintk(GS_DEBUG_CLOSE, "gs_close port %p: count: %d\n", port, port->count);
+ if (port->port.count) {
+ gs_dprintk(GS_DEBUG_CLOSE, "gs_close port %p: count: %d\n", port, port->port.count);
spin_unlock_irqrestore(&port->driver_lock, flags);
func_exit ();
return;
}
- port->flags |= ASYNC_CLOSING;
+ port->port.flags |= ASYNC_CLOSING;
/*
* Now we wait for the transmit buffer to clear; and we notify
@@ -585,7 +585,7 @@ void gs_close(struct tty_struct * tty, struct file * filp)
if (port->closing_wait != ASYNC_CLOSING_WAIT_NONE)
gs_wait_tx_flushed (port, port->closing_wait);
- port->flags &= ~GS_ACTIVE;
+ port->port.flags &= ~GS_ACTIVE;
gs_flush_buffer(tty);
@@ -595,18 +595,18 @@ void gs_close(struct tty_struct * tty, struct file * filp)
port->event = 0;
port->rd->close (port);
port->rd->shutdown_port (port);
- port->tty = NULL;
+ port->port.tty = NULL;
- if (port->blocked_open) {
+ if (port->port.blocked_open) {
if (port->close_delay) {
spin_unlock_irqrestore(&port->driver_lock, flags);
msleep_interruptible(jiffies_to_msecs(port->close_delay));
spin_lock_irqsave(&port->driver_lock, flags);
}
- wake_up_interruptible(&port->open_wait);
+ wake_up_interruptible(&port->port.open_wait);
}
- port->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING | ASYNC_INITIALIZED);
- wake_up_interruptible(&port->close_wait);
+ port->port.flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING | ASYNC_INITIALIZED);
+ wake_up_interruptible(&port->port.close_wait);
func_exit ();
}
@@ -626,10 +626,10 @@ void gs_set_termios (struct tty_struct * tty,
port = tty->driver_data;
if (!port) return;
- if (!port->tty) {
+ if (!port->port.tty) {
/* This seems to happen when this is called after gs_close. */
- gs_dprintk (GS_DEBUG_TERMIOS, "gs: Odd: port->tty is NULL\n");
- port->tty = tty;
+ gs_dprintk (GS_DEBUG_TERMIOS, "gs: Odd: port->port.tty is NULL\n");
+ port->port.tty = tty;
}
@@ -651,15 +651,15 @@ void gs_set_termios (struct tty_struct * tty,
baudrate = tty_get_baud_rate(tty);
if ((tiosp->c_cflag & CBAUD) == B38400) {
- if ( (port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
+ if ( (port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
baudrate = 57600;
- else if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
+ else if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
baudrate = 115200;
- else if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
+ else if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
baudrate = 230400;
- else if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
+ else if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
baudrate = 460800;
- else if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST)
+ else if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST)
baudrate = (port->baud_base / port->custom_divisor);
}
@@ -715,7 +715,7 @@ int gs_init_port(struct gs_port *port)
func_enter ();
- if (port->flags & ASYNC_INITIALIZED) {
+ if (port->port.flags & ASYNC_INITIALIZED) {
func_exit ();
return 0;
}
@@ -737,15 +737,15 @@ int gs_init_port(struct gs_port *port)
}
spin_lock_irqsave (&port->driver_lock, flags);
- if (port->tty)
- clear_bit(TTY_IO_ERROR, &port->tty->flags);
+ if (port->port.tty)
+ clear_bit(TTY_IO_ERROR, &port->port.tty->flags);
mutex_init(&port->port_write_mutex);
port->xmit_cnt = port->xmit_head = port->xmit_tail = 0;
spin_unlock_irqrestore(&port->driver_lock, flags);
- gs_set_termios(port->tty, NULL);
+ gs_set_termios(port->port.tty, NULL);
spin_lock_irqsave (&port->driver_lock, flags);
- port->flags |= ASYNC_INITIALIZED;
- port->flags &= ~GS_TX_INTEN;
+ port->port.flags |= ASYNC_INITIALIZED;
+ port->port.flags &= ~GS_TX_INTEN;
spin_unlock_irqrestore(&port->driver_lock, flags);
func_exit ();
@@ -764,11 +764,11 @@ int gs_setserial(struct gs_port *port, struct serial_struct __user *sp)
if ((sio.baud_base != port->baud_base) ||
(sio.close_delay != port->close_delay) ||
((sio.flags & ~ASYNC_USR_MASK) !=
- (port->flags & ~ASYNC_USR_MASK)))
+ (port->port.flags & ~ASYNC_USR_MASK)))
return(-EPERM);
}
- port->flags = (port->flags & ~ASYNC_USR_MASK) |
+ port->port.flags = (port->port.flags & ~ASYNC_USR_MASK) |
(sio.flags & ASYNC_USR_MASK);
port->baud_base = sio.baud_base;
@@ -776,7 +776,7 @@ int gs_setserial(struct gs_port *port, struct serial_struct __user *sp)
port->closing_wait = sio.closing_wait;
port->custom_divisor = sio.custom_divisor;
- gs_set_termios (port->tty, NULL);
+ gs_set_termios (port->port.tty, NULL);
return 0;
}
@@ -793,7 +793,7 @@ int gs_getserial(struct gs_port *port, struct serial_struct __user *sp)
struct serial_struct sio;
memset(&sio, 0, sizeof(struct serial_struct));
- sio.flags = port->flags;
+ sio.flags = port->port.flags;
sio.baud_base = port->baud_base;
sio.close_delay = port->close_delay;
sio.closing_wait = port->closing_wait;
@@ -821,10 +821,10 @@ void gs_got_break(struct gs_port *port)
{
func_enter ();
- tty_insert_flip_char(port->tty, 0, TTY_BREAK);
- tty_schedule_flip(port->tty);
- if (port->flags & ASYNC_SAK) {
- do_SAK (port->tty);
+ tty_insert_flip_char(port->port.tty, 0, TTY_BREAK);
+ tty_schedule_flip(port->port.tty);
+ if (port->port.flags & ASYNC_SAK) {
+ do_SAK (port->port.tty);
}
func_exit ();
diff --git a/drivers/char/rio/rio_linux.c b/drivers/char/rio/rio_linux.c
index 412777c..6a828c2 100644
--- a/drivers/char/rio/rio_linux.c
+++ b/drivers/char/rio/rio_linux.c
@@ -436,7 +436,7 @@ static void rio_disable_tx_interrupts(void *ptr)
{
func_enter();
- /* port->gs.flags &= ~GS_TX_INTEN; */
+ /* port->gs.port.flags &= ~GS_TX_INTEN; */
func_exit();
}
@@ -460,7 +460,7 @@ static void rio_enable_tx_interrupts(void *ptr)
* In general we cannot count on "tx empty" interrupts, although
* the interrupt routine seems to be able to tell the difference.
*/
- PortP->gs.flags &= ~GS_TX_INTEN;
+ PortP->gs.port.flags &= ~GS_TX_INTEN;
func_exit();
}
@@ -515,7 +515,7 @@ static void rio_shutdown_port(void *ptr)
func_enter();
PortP = (struct Port *) ptr;
- PortP->gs.tty = NULL;
+ PortP->gs.port.tty = NULL;
func_exit();
}
@@ -534,7 +534,7 @@ static void rio_hungup(void *ptr)
func_enter();
PortP = (struct Port *) ptr;
- PortP->gs.tty = NULL;
+ PortP->gs.port.tty = NULL;
func_exit();
}
@@ -554,12 +554,12 @@ static void rio_close(void *ptr)
riotclose(ptr);
- if (PortP->gs.count) {
- printk(KERN_ERR "WARNING port count:%d\n", PortP->gs.count);
- PortP->gs.count = 0;
+ if (PortP->gs.port.count) {
+ printk(KERN_ERR "WARNING port count:%d\n", PortP->gs.port.count);
+ PortP->gs.port.count = 0;
}
- PortP->gs.tty = NULL;
+ PortP->gs.port.tty = NULL;
func_exit();
}
@@ -854,8 +854,8 @@ static int rio_init_datastructures(void)
/*
* Initializing wait queue
*/
- init_waitqueue_head(&port->gs.open_wait);
- init_waitqueue_head(&port->gs.close_wait);
+ init_waitqueue_head(&port->gs.port.open_wait);
+ init_waitqueue_head(&port->gs.port.close_wait);
}
#else
/* We could postpone initializing them to when they are configured. */
diff --git a/drivers/char/rio/riocmd.c b/drivers/char/rio/riocmd.c
index 7b96e08..d940f67 100644
--- a/drivers/char/rio/riocmd.c
+++ b/drivers/char/rio/riocmd.c
@@ -487,12 +487,12 @@ static int RIOCommandRup(struct rio_info *p, uint Rup, struct Host *HostP, struc
** If the device is a modem, then check the modem
** carrier.
*/
- if (PortP->gs.tty == NULL)
+ if (PortP->gs.port.tty == NULL)
break;
- if (PortP->gs.tty->termios == NULL)
+ if (PortP->gs.port.tty->termios == NULL)
break;
- if (!(PortP->gs.tty->termios->c_cflag & CLOCAL) && ((PortP->State & (RIO_MOPEN | RIO_WOPEN)))) {
+ if (!(PortP->gs.port.tty->termios->c_cflag & CLOCAL) && ((PortP->State & (RIO_MOPEN | RIO_WOPEN)))) {
rio_dprintk(RIO_DEBUG_CMD, "Is there a Carrier?\n");
/*
@@ -509,7 +509,7 @@ static int RIOCommandRup(struct rio_info *p, uint Rup, struct Host *HostP, struc
** wakeup anyone in WOPEN
*/
if (PortP->State & (PORT_ISOPEN | RIO_WOPEN))
- wake_up_interruptible(&PortP->gs.open_wait);
+ wake_up_interruptible(&PortP->gs.port.open_wait);
}
} else {
/*
@@ -517,7 +517,7 @@ static int RIOCommandRup(struct rio_info *p, uint Rup, struct Host *HostP, struc
*/
if (PortP->State & RIO_CARR_ON) {
if (PortP->State & (PORT_ISOPEN | RIO_WOPEN | RIO_MOPEN))
- tty_hangup(PortP->gs.tty);
+ tty_hangup(PortP->gs.port.tty);
PortP->State &= ~RIO_CARR_ON;
rio_dprintk(RIO_DEBUG_CMD, "Carrirer just went down\n");
}
diff --git a/drivers/char/rio/riointr.c b/drivers/char/rio/riointr.c
index ea21686..e9f9db9 100644
--- a/drivers/char/rio/riointr.c
+++ b/drivers/char/rio/riointr.c
@@ -106,7 +106,7 @@ void RIOTxEnable(char *en)
PortP = (struct Port *) en;
p = (struct rio_info *) PortP->p;
- tty = PortP->gs.tty;
+ tty = PortP->gs.port.tty;
rio_dprintk(RIO_DEBUG_INTR, "tx port %d: %d chars queued.\n", PortP->PortNum, PortP->gs.xmit_cnt);
@@ -162,7 +162,7 @@ void RIOTxEnable(char *en)
rio_spin_unlock_irqrestore(&PortP->portSem, flags);
if (PortP->gs.xmit_cnt <= (PortP->gs.wakeup_chars + 2 * PKT_MAX_DATA_LEN))
- tty_wakeup(PortP->gs.tty);
+ tty_wakeup(PortP->gs.port.tty);
}
@@ -245,7 +245,7 @@ void RIOServiceHost(struct rio_info *p, struct Host *HostP)
** find corresponding tty structure. The process of mapping
** the ports puts these here.
*/
- ttyP = PortP->gs.tty;
+ ttyP = PortP->gs.port.tty;
/*
** Lock the port before we begin working on it.
@@ -339,7 +339,7 @@ void RIOServiceHost(struct rio_info *p, struct Host *HostP)
** find corresponding tty structure. The process of mapping
** the ports puts these here.
*/
- ttyP = PortP->gs.tty;
+ ttyP = PortP->gs.port.tty;
/* If ttyP is NULL, the port is getting closed. Forget about it. */
if (!ttyP) {
rio_dprintk(RIO_DEBUG_INTR, "no tty, so skipping.\n");
@@ -546,7 +546,7 @@ static void RIOReceive(struct rio_info *p, struct Port *PortP)
intCount++;
- TtyP = PortP->gs.tty;
+ TtyP = PortP->gs.port.tty;
if (!TtyP) {
rio_dprintk(RIO_DEBUG_INTR, "RIOReceive: tty is null. \n");
return;
diff --git a/drivers/char/rio/rioparam.c b/drivers/char/rio/rioparam.c
index 4810b84..908f764 100644
--- a/drivers/char/rio/rioparam.c
+++ b/drivers/char/rio/rioparam.c
@@ -164,7 +164,7 @@ int RIOParam(struct Port *PortP, int cmd, int Modem, int SleepFlag)
func_enter();
- TtyP = PortP->gs.tty;
+ TtyP = PortP->gs.port.tty;
rio_dprintk(RIO_DEBUG_PARAM, "RIOParam: Port:%d cmd:%d Modem:%d SleepFlag:%d Mapped: %d, tty=%p\n", PortP->PortNum, cmd, Modem, SleepFlag, PortP->Mapped, TtyP);
diff --git a/drivers/char/rio/riotty.c b/drivers/char/rio/riotty.c
index c993548..76c7f4f 100644
--- a/drivers/char/rio/riotty.c
+++ b/drivers/char/rio/riotty.c
@@ -144,14 +144,14 @@ int riotopen(struct tty_struct *tty, struct file *filp)
tty->driver_data = PortP;
- PortP->gs.tty = tty;
- PortP->gs.count++;
+ PortP->gs.port.tty = tty;
+ PortP->gs.port.count++;
rio_dprintk(RIO_DEBUG_TTY, "%d bytes in tx buffer\n", PortP->gs.xmit_cnt);
retval = gs_init_port(&PortP->gs);
if (retval) {
- PortP->gs.count--;
+ PortP->gs.port.count--;
return -ENXIO;
}
/*
@@ -297,7 +297,7 @@ int riotopen(struct tty_struct *tty, struct file *filp)
** insert test for carrier here. -- ???
** I already see that test here. What's the deal? -- REW
*/
- if ((PortP->gs.tty->termios->c_cflag & CLOCAL) ||
+ if ((PortP->gs.port.tty->termios->c_cflag & CLOCAL) ||
(PortP->ModemState & RIOC_MSVR1_CD)) {
rio_dprintk(RIO_DEBUG_TTY, "open(%d) Modem carr on\n", SysPort);
/*
@@ -305,16 +305,16 @@ int riotopen(struct tty_struct *tty, struct file *filp)
wakeup((caddr_t) &tp->tm.c_canq);
*/
PortP->State |= RIO_CARR_ON;
- wake_up_interruptible(&PortP->gs.open_wait);
+ wake_up_interruptible(&PortP->gs.port.open_wait);
} else { /* no carrier - wait for DCD */
/*
- while (!(PortP->gs.tty->termios->c_state & CARR_ON) &&
+ while (!(PortP->gs.port.tty->termios->c_state & CARR_ON) &&
!(filp->f_flags & O_NONBLOCK) && !p->RIOHalted )
*/
while (!(PortP->State & RIO_CARR_ON) && !(filp->f_flags & O_NONBLOCK) && !p->RIOHalted) {
rio_dprintk(RIO_DEBUG_TTY, "open(%d) sleeping for carr on\n", SysPort);
/*
- PortP->gs.tty->termios->c_state |= WOPEN;
+ PortP->gs.port.tty->termios->c_state |= WOPEN;
*/
PortP->State |= RIO_WOPEN;
rio_spin_unlock_irqrestore(&PortP->portSem, flags);
@@ -384,7 +384,7 @@ int riotclose(void *ptr)
/* PortP = p->RIOPortp[SysPort]; */
rio_dprintk(RIO_DEBUG_TTY, "Port is at address %p\n", PortP);
/* tp = PortP->TtyP; *//* Get tty */
- tty = PortP->gs.tty;
+ tty = PortP->gs.port.tty;
rio_dprintk(RIO_DEBUG_TTY, "TTY is at address %p\n", tty);
if (PortP->gs.closing_wait)
diff --git a/drivers/char/sx.c b/drivers/char/sx.c
index b1a7a8c..b1239ee 100644
--- a/drivers/char/sx.c
+++ b/drivers/char/sx.c
@@ -1,4 +1,3 @@
-
/* sx.c -- driver for the Specialix SX series cards.
*
* This driver will also support the older SI, and XIO cards.
@@ -930,7 +929,7 @@ static int sx_set_real_termios(void *ptr)
func_enter2();
- if (!port->gs.tty)
+ if (!port->gs.port.tty)
return 0;
/* What is this doing here? -- REW
@@ -941,19 +940,19 @@ static int sx_set_real_termios(void *ptr)
sx_set_baud(port);
-#define CFLAG port->gs.tty->termios->c_cflag
+#define CFLAG port->gs.port.tty->termios->c_cflag
sx_write_channel_byte(port, hi_mr1,
- (C_PARENB(port->gs.tty) ? MR1_WITH : MR1_NONE) |
- (C_PARODD(port->gs.tty) ? MR1_ODD : MR1_EVEN) |
- (C_CRTSCTS(port->gs.tty) ? MR1_RTS_RXFLOW : 0) |
+ (C_PARENB(port->gs.port.tty) ? MR1_WITH : MR1_NONE) |
+ (C_PARODD(port->gs.port.tty) ? MR1_ODD : MR1_EVEN) |
+ (C_CRTSCTS(port->gs.port.tty) ? MR1_RTS_RXFLOW : 0) |
(((CFLAG & CSIZE) == CS8) ? MR1_8_BITS : 0) |
(((CFLAG & CSIZE) == CS7) ? MR1_7_BITS : 0) |
(((CFLAG & CSIZE) == CS6) ? MR1_6_BITS : 0) |
(((CFLAG & CSIZE) == CS5) ? MR1_5_BITS : 0));
sx_write_channel_byte(port, hi_mr2,
- (C_CRTSCTS(port->gs.tty) ? MR2_CTS_TXFLOW : 0) |
- (C_CSTOPB(port->gs.tty) ? MR2_2_STOP :
+ (C_CRTSCTS(port->gs.port.tty) ? MR2_CTS_TXFLOW : 0) |
+ (C_CSTOPB(port->gs.port.tty) ? MR2_2_STOP :
MR2_1_STOP));
switch (CFLAG & CSIZE) {
@@ -976,44 +975,44 @@ static int sx_set_real_termios(void *ptr)
}
sx_write_channel_byte(port, hi_prtcl,
- (I_IXON(port->gs.tty) ? SP_TXEN : 0) |
- (I_IXOFF(port->gs.tty) ? SP_RXEN : 0) |
- (I_IXANY(port->gs.tty) ? SP_TANY : 0) | SP_DCEN);
+ (I_IXON(port->gs.port.tty) ? SP_TXEN : 0) |
+ (I_IXOFF(port->gs.port.tty) ? SP_RXEN : 0) |
+ (I_IXANY(port->gs.port.tty) ? SP_TANY : 0) | SP_DCEN);
sx_write_channel_byte(port, hi_break,
- (I_IGNBRK(port->gs.tty) ? BR_IGN : 0 |
- I_BRKINT(port->gs.tty) ? BR_INT : 0));
+ (I_IGNBRK(port->gs.port.tty) ? BR_IGN : 0 |
+ I_BRKINT(port->gs.port.tty) ? BR_INT : 0));
- sx_write_channel_byte(port, hi_txon, START_CHAR(port->gs.tty));
- sx_write_channel_byte(port, hi_rxon, START_CHAR(port->gs.tty));
- sx_write_channel_byte(port, hi_txoff, STOP_CHAR(port->gs.tty));
- sx_write_channel_byte(port, hi_rxoff, STOP_CHAR(port->gs.tty));
+ sx_write_channel_byte(port, hi_txon, START_CHAR(port->gs.port.tty));
+ sx_write_channel_byte(port, hi_rxon, START_CHAR(port->gs.port.tty));
+ sx_write_channel_byte(port, hi_txoff, STOP_CHAR(port->gs.port.tty));
+ sx_write_channel_byte(port, hi_rxoff, STOP_CHAR(port->gs.port.tty));
sx_reconfigure_port(port);
/* Tell line discipline whether we will do input cooking */
- if (I_OTHER(port->gs.tty)) {
- clear_bit(TTY_HW_COOK_IN, &port->gs.tty->flags);
+ if (I_OTHER(port->gs.port.tty)) {
+ clear_bit(TTY_HW_COOK_IN, &port->gs.port.tty->flags);
} else {
- set_bit(TTY_HW_COOK_IN, &port->gs.tty->flags);
+ set_bit(TTY_HW_COOK_IN, &port->gs.port.tty->flags);
}
sx_dprintk(SX_DEBUG_TERMIOS, "iflags: %x(%d) ",
- (unsigned int)port->gs.tty->termios->c_iflag,
- I_OTHER(port->gs.tty));
+ (unsigned int)port->gs.port.tty->termios->c_iflag,
+ I_OTHER(port->gs.port.tty));
/* Tell line discipline whether we will do output cooking.
* If OPOST is set and no other output flags are set then we can do output
* processing. Even if only *one* other flag in the O_OTHER group is set
* we do cooking in software.
*/
- if (O_OPOST(port->gs.tty) && !O_OTHER(port->gs.tty)) {
- set_bit(TTY_HW_COOK_OUT, &port->gs.tty->flags);
+ if (O_OPOST(port->gs.port.tty) && !O_OTHER(port->gs.port.tty)) {
+ set_bit(TTY_HW_COOK_OUT, &port->gs.port.tty->flags);
} else {
- clear_bit(TTY_HW_COOK_OUT, &port->gs.tty->flags);
+ clear_bit(TTY_HW_COOK_OUT, &port->gs.port.tty->flags);
}
sx_dprintk(SX_DEBUG_TERMIOS, "oflags: %x(%d)\n",
- (unsigned int)port->gs.tty->termios->c_oflag,
- O_OTHER(port->gs.tty));
+ (unsigned int)port->gs.port.tty->termios->c_oflag,
+ O_OTHER(port->gs.port.tty));
/* port->c_dcd = sx_get_CD (port); */
func_exit();
return 0;
@@ -1102,8 +1101,8 @@ static void sx_transmit_chars(struct sx_port *port)
sx_disable_tx_interrupts(port);
}
- if ((port->gs.xmit_cnt <= port->gs.wakeup_chars) && port->gs.tty) {
- tty_wakeup(port->gs.tty);
+ if ((port->gs.xmit_cnt <= port->gs.wakeup_chars) && port->gs.port.tty) {
+ tty_wakeup(port->gs.port.tty);
sx_dprintk(SX_DEBUG_TRANSMIT, "Waking up.... ldisc (%d)....\n",
port->gs.wakeup_chars);
}
@@ -1126,7 +1125,7 @@ static inline void sx_receive_chars(struct sx_port *port)
unsigned char *rp;
func_enter2();
- tty = port->gs.tty;
+ tty = port->gs.port.tty;
while (1) {
rx_op = sx_read_channel_byte(port, hi_rxopos);
c = (sx_read_channel_byte(port, hi_rxipos) - rx_op) & 0xff;
@@ -1211,12 +1210,12 @@ static inline void sx_check_modem_signals(struct sx_port *port)
/* DCD went UP */
if ((sx_read_channel_byte(port, hi_hstat) !=
HS_IDLE_CLOSED) &&
- !(port->gs.tty->termios->
+ !(port->gs.port.tty->termios->
c_cflag & CLOCAL)) {
/* Are we blocking in open? */
sx_dprintk(SX_DEBUG_MODEMSIGNALS, "DCD "
"active, unblocking open\n");
- wake_up_interruptible(&port->gs.
+ wake_up_interruptible(&port->gs.port.
open_wait);
} else {
sx_dprintk(SX_DEBUG_MODEMSIGNALS, "DCD "
@@ -1224,10 +1223,10 @@ static inline void sx_check_modem_signals(struct sx_port *port)
}
} else {
/* DCD went down! */
- if (!(port->gs.tty->termios->c_cflag & CLOCAL)){
+ if (!(port->gs.port.tty->termios->c_cflag & CLOCAL)){
sx_dprintk(SX_DEBUG_MODEMSIGNALS, "DCD "
"dropped. hanging up....\n");
- tty_hangup(port->gs.tty);
+ tty_hangup(port->gs.port.tty);
} else {
sx_dprintk(SX_DEBUG_MODEMSIGNALS, "DCD "
"dropped. ignoring.\n");
@@ -1325,7 +1324,7 @@ static irqreturn_t sx_interrupt(int irq, void *ptr)
for (i = 0; i < board->nports; i++) {
port = &board->ports[i];
- if (port->gs.flags & GS_ACTIVE) {
+ if (port->gs.port.flags & GS_ACTIVE) {
if (sx_read_channel_byte(port, hi_state)) {
sx_dprintk(SX_DEBUG_INTERRUPTS, "Port %d: "
"modem signal change?... \n",i);
@@ -1334,7 +1333,7 @@ static irqreturn_t sx_interrupt(int irq, void *ptr)
if (port->gs.xmit_cnt) {
sx_transmit_chars(port);
}
- if (!(port->gs.flags & SX_RX_THROTTLE)) {
+ if (!(port->gs.port.flags & SX_RX_THROTTLE)) {
sx_receive_chars(port);
}
}
@@ -1373,7 +1372,7 @@ static void sx_disable_tx_interrupts(void *ptr)
struct sx_port *port = ptr;
func_enter2();
- port->gs.flags &= ~GS_TX_INTEN;
+ port->gs.port.flags &= ~GS_TX_INTEN;
func_exit();
}
@@ -1394,7 +1393,7 @@ static void sx_enable_tx_interrupts(void *ptr)
/* XXX Must be "HIGH_WATER" for SI card according to doc. */
if (data_in_buffer < LOW_WATER)
- port->gs.flags &= ~GS_TX_INTEN;
+ port->gs.port.flags &= ~GS_TX_INTEN;
func_exit();
}
@@ -1442,8 +1441,8 @@ static void sx_shutdown_port(void *ptr)
func_enter();
- port->gs.flags &= ~GS_ACTIVE;
- if (port->gs.tty && (port->gs.tty->termios->c_cflag & HUPCL)) {
+ port->gs.port.flags &= ~GS_ACTIVE;
+ if (port->gs.port.tty && (port->gs.port.tty->termios->c_cflag & HUPCL)) {
sx_setsignals(port, 0, 0);
sx_reconfigure_port(port);
}
@@ -1485,8 +1484,8 @@ static int sx_open(struct tty_struct *tty, struct file *filp)
spin_lock_irqsave(&port->gs.driver_lock, flags);
tty->driver_data = port;
- port->gs.tty = tty;
- port->gs.count++;
+ port->gs.port.tty = tty;
+ port->gs.port.count++;
spin_unlock_irqrestore(&port->gs.driver_lock, flags);
sx_dprintk(SX_DEBUG_OPEN, "starting port\n");
@@ -1497,12 +1496,12 @@ static int sx_open(struct tty_struct *tty, struct file *filp)
retval = gs_init_port(&port->gs);
sx_dprintk(SX_DEBUG_OPEN, "done gs_init\n");
if (retval) {
- port->gs.count--;
+ port->gs.port.count--;
return retval;
}
- port->gs.flags |= GS_ACTIVE;
- if (port->gs.count <= 1)
+ port->gs.port.flags |= GS_ACTIVE;
+ if (port->gs.port.count <= 1)
sx_setsignals(port, 1, 1);
#if 0
@@ -1513,12 +1512,12 @@ static int sx_open(struct tty_struct *tty, struct file *filp)
my_hd_io(port->board->base + port->ch_base, sizeof(*port));
#endif
- if (port->gs.count <= 1) {
+ if (port->gs.port.count <= 1) {
if (sx_send_command(port, HS_LOPEN, -1, HS_IDLE_OPEN) != 1) {
printk(KERN_ERR "sx: Card didn't respond to LOPEN "
"command.\n");
spin_lock_irqsave(&port->gs.driver_lock, flags);
- port->gs.count--;
+ port->gs.port.count--;
spin_unlock_irqrestore(&port->gs.driver_lock, flags);
return -EIO;
}
@@ -1526,11 +1525,11 @@ static int sx_open(struct tty_struct *tty, struct file *filp)
retval = gs_block_til_ready(port, filp);
sx_dprintk(SX_DEBUG_OPEN, "Block til ready returned %d. Count=%d\n",
- retval, port->gs.count);
+ retval, port->gs.port.count);
if (retval) {
/*
- * Don't lower gs.count here because sx_close() will be called later
+ * Don't lower gs.port.count here because sx_close() will be called later
*/
return retval;
@@ -1571,14 +1570,14 @@ static void sx_close(void *ptr)
}
sx_dprintk(SX_DEBUG_CLOSE, "waited %d jiffies for close. count=%d\n",
- 5 * HZ - to - 1, port->gs.count);
+ 5 * HZ - to - 1, port->gs.port.count);
- if (port->gs.count) {
+ if (port->gs.port.count) {
sx_dprintk(SX_DEBUG_CLOSE, "WARNING port count:%d\n",
- port->gs.count);
+ port->gs.port.count);
/*printk("%s SETTING port count to zero: %p count: %d\n",
- __func__, port, port->gs.count);
- port->gs.count = 0;*/
+ __func__, port, port->gs.port.count);
+ port->gs.port.count = 0;*/
}
func_exit();
@@ -1939,7 +1938,7 @@ static void sx_throttle(struct tty_struct *tty)
* control then throttle the port.
*/
if ((tty->termios->c_cflag & CRTSCTS) || (I_IXOFF(tty))) {
- port->gs.flags |= SX_RX_THROTTLE;
+ port->gs.port.flags |= SX_RX_THROTTLE;
}
func_exit();
}
@@ -1953,7 +1952,7 @@ static void sx_unthrottle(struct tty_struct *tty)
* this port in case we disabled flow control while the port
* was throttled
*/
- port->gs.flags &= ~SX_RX_THROTTLE;
+ port->gs.port.flags &= ~SX_RX_THROTTLE;
func_exit();
return;
}
@@ -2408,9 +2407,7 @@ static int sx_init_portstructs(int nboards, int nports)
/*
* Initializing wait queue
*/
- init_waitqueue_head(&port->gs.open_wait);
- init_waitqueue_head(&port->gs.close_wait);
-
+ tty_port_init(&port->gs.port);
port++;
}
}
diff --git a/include/linux/generic_serial.h b/include/linux/generic_serial.h
index 1108336..4cc9139 100644
--- a/include/linux/generic_serial.h
+++ b/include/linux/generic_serial.h
@@ -14,6 +14,7 @@
#ifdef __KERNEL__
#include <linux/mutex.h>
+#include <linux/tty.h>
struct real_driver {
void (*disable_tx_interrupts) (void *);
@@ -33,17 +34,12 @@ struct real_driver {
struct gs_port {
int magic;
+ struct tty_port port;
unsigned char *xmit_buf;
int xmit_head;
int xmit_tail;
int xmit_cnt;
struct mutex port_write_mutex;
- int flags;
- wait_queue_head_t open_wait;
- wait_queue_head_t close_wait;
- int count;
- int blocked_open;
- struct tty_struct *tty;
unsigned long event;
unsigned short closing_wait;
int close_delay;
^ permalink raw reply related [flat|nested] 32+ messages in thread* [PATCH 15/20] serial: use tty_port
2008-05-19 14:50 [PATCH 00/20] Implment a tty port structure and supporting logic Alan Cox
` (13 preceding siblings ...)
2008-05-19 14:51 ` [PATCH 14/20] gs: " Alan Cox
@ 2008-05-19 14:51 ` Alan Cox
2008-05-19 14:51 ` [PATCH 17/20] riscom8: remove bogus checks Alan Cox
` (6 subsequent siblings)
21 siblings, 0 replies; 32+ messages in thread
From: Alan Cox @ 2008-05-19 14:51 UTC (permalink / raw)
To: linux-kernel, akpm, greg
From: Alan Cox <alan@redhat.com>
Switch the serial_core based drivers to use the new tty_port structure. We
can't quite use all of it yet because of the dynamically allocated extras
in the serial_core layer.
---
drivers/serial/8250.c | 2 +
drivers/serial/jsm/jsm_neo.c | 2 +
drivers/serial/jsm/jsm_tty.c | 8 ++--
drivers/serial/serial_core.c | 80 ++++++++++++++++++++++--------------------
include/linux/serial_core.h | 26 ++++++--------
5 files changed, 60 insertions(+), 58 deletions(-)
diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c
index a1ca9b7..56ca93a 100644
--- a/drivers/serial/8250.c
+++ b/drivers/serial/8250.c
@@ -1290,7 +1290,7 @@ static void serial8250_enable_ms(struct uart_port *port)
static void
receive_chars(struct uart_8250_port *up, unsigned int *status)
{
- struct tty_struct *tty = up->port.info->tty;
+ struct tty_struct *tty = up->port.info->port.tty;
unsigned char ch, lsr = *status;
int max_count = 256;
char flag;
diff --git a/drivers/serial/jsm/jsm_neo.c b/drivers/serial/jsm/jsm_neo.c
index b2d6f5b..b7584ca 100644
--- a/drivers/serial/jsm/jsm_neo.c
+++ b/drivers/serial/jsm/jsm_neo.c
@@ -998,7 +998,7 @@ static void neo_param(struct jsm_channel *ch)
{ 50, B50 },
};
- cflag = C_BAUD(ch->uart_port.info->tty);
+ cflag = C_BAUD(ch->uart_port.info->port.tty);
baud = 9600;
for (i = 0; i < ARRAY_SIZE(baud_rates); i++) {
if (baud_rates[i].cflag == cflag) {
diff --git a/drivers/serial/jsm/jsm_tty.c b/drivers/serial/jsm/jsm_tty.c
index 94ec663..a697914 100644
--- a/drivers/serial/jsm/jsm_tty.c
+++ b/drivers/serial/jsm/jsm_tty.c
@@ -145,7 +145,7 @@ static void jsm_tty_send_xchar(struct uart_port *port, char ch)
struct ktermios *termios;
spin_lock_irqsave(&port->lock, lock_flags);
- termios = port->info->tty->termios;
+ termios = port->info->port.tty->termios;
if (ch == termios->c_cc[VSTART])
channel->ch_bd->bd_ops->send_start_character(channel);
@@ -239,7 +239,7 @@ static int jsm_tty_open(struct uart_port *port)
channel->ch_cached_lsr = 0;
channel->ch_stops_sent = 0;
- termios = port->info->tty->termios;
+ termios = port->info->port.tty->termios;
channel->ch_c_cflag = termios->c_cflag;
channel->ch_c_iflag = termios->c_iflag;
channel->ch_c_oflag = termios->c_oflag;
@@ -272,7 +272,7 @@ static void jsm_tty_close(struct uart_port *port)
jsm_printk(CLOSE, INFO, &channel->ch_bd->pci_dev, "start\n");
bd = channel->ch_bd;
- ts = channel->uart_port.info->tty->termios;
+ ts = channel->uart_port.info->port.tty->termios;
channel->ch_flags &= ~(CH_STOPI);
@@ -515,7 +515,7 @@ void jsm_input(struct jsm_channel *ch)
if (!ch)
return;
- tp = ch->uart_port.info->tty;
+ tp = ch->uart_port.info->port.tty;
bd = ch->ch_bd;
if(!bd)
diff --git a/drivers/serial/serial_core.c b/drivers/serial/serial_core.c
index eab0327..1c4fe79 100644
--- a/drivers/serial/serial_core.c
+++ b/drivers/serial/serial_core.c
@@ -50,7 +50,7 @@ static struct lock_class_key port_lock_key;
#define HIGH_BITS_OFFSET ((sizeof(long)-sizeof(int))*8)
-#define uart_users(state) ((state)->count + ((state)->info ? (state)->info->blocked_open : 0))
+#define uart_users(state) ((state)->count + ((state)->info ? (state)->info->port.blocked_open : 0))
#ifdef CONFIG_SERIAL_CORE_CONSOLE
#define uart_console(port) ((port)->cons && (port)->cons->index == (port)->line)
@@ -113,7 +113,7 @@ static void uart_start(struct tty_struct *tty)
static void uart_tasklet_action(unsigned long data)
{
struct uart_state *state = (struct uart_state *)data;
- tty_wakeup(state->info->tty);
+ tty_wakeup(state->info->port.tty);
}
static inline void
@@ -135,7 +135,7 @@ uart_update_mctrl(struct uart_port *port, unsigned int set, unsigned int clear)
/*
* Startup the port. This will be called once per open. All calls
- * will be serialised by the per-port semaphore.
+ * will be serialised by the per-port mutex.
*/
static int uart_startup(struct uart_state *state, int init_hw)
{
@@ -152,7 +152,7 @@ static int uart_startup(struct uart_state *state, int init_hw)
* once we have successfully opened the port. Also set
* up the tty->alt_speed kludge
*/
- set_bit(TTY_IO_ERROR, &info->tty->flags);
+ set_bit(TTY_IO_ERROR, &info->port.tty->flags);
if (port->type == PORT_UNKNOWN)
return 0;
@@ -162,6 +162,7 @@ static int uart_startup(struct uart_state *state, int init_hw)
* buffer.
*/
if (!info->xmit.buf) {
+ /* This is protected by the per port mutex */
page = get_zeroed_page(GFP_KERNEL);
if (!page)
return -ENOMEM;
@@ -182,20 +183,20 @@ static int uart_startup(struct uart_state *state, int init_hw)
* Setup the RTS and DTR signals once the
* port is open and ready to respond.
*/
- if (info->tty->termios->c_cflag & CBAUD)
+ if (info->port.tty->termios->c_cflag & CBAUD)
uart_set_mctrl(port, TIOCM_RTS | TIOCM_DTR);
}
if (info->flags & UIF_CTS_FLOW) {
spin_lock_irq(&port->lock);
if (!(port->ops->get_mctrl(port) & TIOCM_CTS))
- info->tty->hw_stopped = 1;
+ info->port.tty->hw_stopped = 1;
spin_unlock_irq(&port->lock);
}
info->flags |= UIF_INITIALIZED;
- clear_bit(TTY_IO_ERROR, &info->tty->flags);
+ clear_bit(TTY_IO_ERROR, &info->port.tty->flags);
}
if (retval && capable(CAP_SYS_ADMIN))
@@ -217,8 +218,8 @@ static void uart_shutdown(struct uart_state *state)
/*
* Set the TTY IO error marker
*/
- if (info->tty)
- set_bit(TTY_IO_ERROR, &info->tty->flags);
+ if (info->port.tty)
+ set_bit(TTY_IO_ERROR, &info->port.tty->flags);
if (info->flags & UIF_INITIALIZED) {
info->flags &= ~UIF_INITIALIZED;
@@ -226,7 +227,7 @@ static void uart_shutdown(struct uart_state *state)
/*
* Turn off DTR and RTS early.
*/
- if (!info->tty || (info->tty->termios->c_cflag & HUPCL))
+ if (!info->port.tty || (info->port.tty->termios->c_cflag & HUPCL))
uart_clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
/*
@@ -426,7 +427,7 @@ EXPORT_SYMBOL(uart_get_divisor);
static void
uart_change_speed(struct uart_state *state, struct ktermios *old_termios)
{
- struct tty_struct *tty = state->info->tty;
+ struct tty_struct *tty = state->info->port.tty;
struct uart_port *port = state->port;
struct ktermios *termios;
@@ -834,8 +835,8 @@ static int uart_set_info(struct uart_state *state,
state->closing_wait = closing_wait;
if (new_serial.xmit_fifo_size)
port->fifosize = new_serial.xmit_fifo_size;
- if (state->info->tty)
- state->info->tty->low_latency =
+ if (state->info->port.tty)
+ state->info->port.tty->low_latency =
(port->flags & UPF_LOW_LATENCY) ? 1 : 0;
check_and_exit:
@@ -855,7 +856,7 @@ static int uart_set_info(struct uart_state *state,
printk(KERN_NOTICE
"%s sets custom speed on %s. This "
"is deprecated.\n", current->comm,
- tty_name(state->info->tty, buf));
+ tty_name(state->info->port.tty, buf));
}
uart_change_speed(state, NULL);
}
@@ -887,7 +888,7 @@ static int uart_get_lsr_info(struct uart_state *state,
*/
if (port->x_char ||
((uart_circ_chars_pending(&state->info->xmit) > 0) &&
- !state->info->tty->stopped && !state->info->tty->hw_stopped))
+ !state->info->port.tty->stopped && !state->info->port.tty->hw_stopped))
result &= ~TIOCSER_TEMT;
return put_user(result, value);
@@ -1228,7 +1229,7 @@ static void uart_set_termios(struct tty_struct *tty,
*/
if (!(old_termios->c_cflag & CLOCAL) &&
(tty->termios->c_cflag & CLOCAL))
- wake_up_interruptible(&state->info->open_wait);
+ wake_up_interruptible(&state->info->port.open_wait);
#endif
}
@@ -1309,9 +1310,9 @@ static void uart_close(struct tty_struct *tty, struct file *filp)
tty_ldisc_flush(tty);
tty->closing = 0;
- state->info->tty = NULL;
+ state->info->port.tty = NULL;
- if (state->info->blocked_open) {
+ if (state->info->port.blocked_open) {
if (state->close_delay)
msleep_interruptible(state->close_delay);
} else if (!uart_console(port)) {
@@ -1322,7 +1323,7 @@ static void uart_close(struct tty_struct *tty, struct file *filp)
* Wake up anyone trying to open this port.
*/
state->info->flags &= ~UIF_NORMAL_ACTIVE;
- wake_up_interruptible(&state->info->open_wait);
+ wake_up_interruptible(&state->info->port.open_wait);
done:
mutex_unlock(&state->mutex);
@@ -1406,8 +1407,8 @@ static void uart_hangup(struct tty_struct *tty)
uart_shutdown(state);
state->count = 0;
state->info->flags &= ~UIF_NORMAL_ACTIVE;
- state->info->tty = NULL;
- wake_up_interruptible(&state->info->open_wait);
+ state->info->port.tty = NULL;
+ wake_up_interruptible(&state->info->port.open_wait);
wake_up_interruptible(&state->info->delta_msr_wait);
}
mutex_unlock(&state->mutex);
@@ -1421,7 +1422,7 @@ static void uart_hangup(struct tty_struct *tty)
*/
static void uart_update_termios(struct uart_state *state)
{
- struct tty_struct *tty = state->info->tty;
+ struct tty_struct *tty = state->info->port.tty;
struct uart_port *port = state->port;
if (uart_console(port) && port->cons->cflag) {
@@ -1460,17 +1461,17 @@ uart_block_til_ready(struct file *filp, struct uart_state *state)
struct uart_port *port = state->port;
unsigned int mctrl;
- info->blocked_open++;
+ info->port.blocked_open++;
state->count--;
- add_wait_queue(&info->open_wait, &wait);
+ add_wait_queue(&info->port.open_wait, &wait);
while (1) {
set_current_state(TASK_INTERRUPTIBLE);
/*
* If we have been hung up, tell userspace/restart open.
*/
- if (tty_hung_up_p(filp) || info->tty == NULL)
+ if (tty_hung_up_p(filp) || info->port.tty == NULL)
break;
/*
@@ -1489,8 +1490,8 @@ uart_block_til_ready(struct file *filp, struct uart_state *state)
* have set TTY_IO_ERROR for a non-existant port.
*/
if ((filp->f_flags & O_NONBLOCK) ||
- (info->tty->termios->c_cflag & CLOCAL) ||
- (info->tty->flags & (1 << TTY_IO_ERROR)))
+ (info->port.tty->termios->c_cflag & CLOCAL) ||
+ (info->port.tty->flags & (1 << TTY_IO_ERROR)))
break;
/*
@@ -1498,7 +1499,7 @@ uart_block_til_ready(struct file *filp, struct uart_state *state)
* not set RTS here - we want to make sure we catch
* the data from the modem.
*/
- if (info->tty->termios->c_cflag & CBAUD)
+ if (info->port.tty->termios->c_cflag & CBAUD)
uart_set_mctrl(port, TIOCM_DTR);
/*
@@ -1520,15 +1521,15 @@ uart_block_til_ready(struct file *filp, struct uart_state *state)
break;
}
set_current_state(TASK_RUNNING);
- remove_wait_queue(&info->open_wait, &wait);
+ remove_wait_queue(&info->port.open_wait, &wait);
state->count++;
- info->blocked_open--;
+ info->port.blocked_open--;
if (signal_pending(current))
return -ERESTARTSYS;
- if (!info->tty || tty_hung_up_p(filp))
+ if (!info->port.tty || tty_hung_up_p(filp))
return -EAGAIN;
return 0;
@@ -1551,10 +1552,13 @@ static struct uart_state *uart_get(struct uart_driver *drv, int line)
goto err_unlock;
}
+ /* BKL: RACE HERE - LEAK */
+ /* We should move this into the uart_state structure and kill off
+ this whole complexity */
if (!state->info) {
state->info = kzalloc(sizeof(struct uart_info), GFP_KERNEL);
if (state->info) {
- init_waitqueue_head(&state->info->open_wait);
+ init_waitqueue_head(&state->info->port.open_wait);
init_waitqueue_head(&state->info->delta_msr_wait);
/*
@@ -1611,7 +1615,7 @@ static int uart_open(struct tty_struct *tty, struct file *filp)
* be re-entered while allocating the info structure, or while we
* request any IRQs that the driver may need. This also has the nice
* side-effect that it delays the action of uart_hangup, so we can
- * guarantee that info->tty will always contain something reasonable.
+ * guarantee that info->port.tty will always contain something reasonable.
*/
state = uart_get(drv, line);
if (IS_ERR(state)) {
@@ -1627,7 +1631,7 @@ static int uart_open(struct tty_struct *tty, struct file *filp)
tty->driver_data = state;
tty->low_latency = (state->port->flags & UPF_LOW_LATENCY) ? 1 : 0;
tty->alt_speed = 0;
- state->info->tty = tty;
+ state->info->port.tty = tty;
/*
* If the port is in the middle of closing, bail out now.
@@ -2085,8 +2089,8 @@ int uart_resume_port(struct uart_driver *drv, struct uart_port *port)
/*
* If that's unset, use the tty termios setting.
*/
- if (state->info && state->info->tty && termios.c_cflag == 0)
- termios = *state->info->tty->termios;
+ if (state->info && state->info->port.tty && termios.c_cflag == 0)
+ termios = *state->info->port.tty->termios;
uart_change_pm(state, 0);
port->ops->set_termios(port, &termios, NULL);
@@ -2504,8 +2508,8 @@ int uart_remove_one_port(struct uart_driver *drv, struct uart_port *port)
tty_unregister_device(drv->tty_driver, port->line);
info = state->info;
- if (info && info->tty)
- tty_vhangup(info->tty);
+ if (info && info->port.tty)
+ tty_vhangup(info->port.tty);
/*
* All users of this port should now be disconnected from
diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index d32123a..2fbe004 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -342,13 +342,15 @@ typedef unsigned int __bitwise__ uif_t;
* stuff here.
*/
struct uart_info {
- struct tty_struct *tty;
+ struct tty_port port;
struct circ_buf xmit;
uif_t flags;
/*
* Definitions for info->flags. These are _private_ to serial_core, and
* are specific to this structure. They may be queried by low level drivers.
+ *
+ * FIXME: use the ASY_ definitions
*/
#define UIF_CHECK_CD ((__force uif_t) (1 << 25))
#define UIF_CTS_FLOW ((__force uif_t) (1 << 26))
@@ -356,11 +358,7 @@ struct uart_info {
#define UIF_INITIALIZED ((__force uif_t) (1 << 31))
#define UIF_SUSPENDED ((__force uif_t) (1 << 30))
- int blocked_open;
-
struct tasklet_struct tlet;
-
- wait_queue_head_t open_wait;
wait_queue_head_t delta_msr_wait;
};
@@ -437,8 +435,8 @@ int uart_resume_port(struct uart_driver *reg, struct uart_port *port);
#define uart_circ_chars_free(circ) \
(CIRC_SPACE((circ)->head, (circ)->tail, UART_XMIT_SIZE))
-#define uart_tx_stopped(port) \
- ((port)->info->tty->stopped || (port)->info->tty->hw_stopped)
+#define uart_tx_stopped(portp) \
+ ((portp)->info->port.tty->stopped || (portp)->info->port.tty->hw_stopped)
/*
* The following are helper functions for the low level drivers.
@@ -449,7 +447,7 @@ uart_handle_sysrq_char(struct uart_port *port, unsigned int ch)
#ifdef SUPPORT_SYSRQ
if (port->sysrq) {
if (ch && time_before(jiffies, port->sysrq)) {
- handle_sysrq(ch, port->info ? port->info->tty : NULL);
+ handle_sysrq(ch, port->info ? port->info->port.tty : NULL);
port->sysrq = 0;
return 1;
}
@@ -478,7 +476,7 @@ static inline int uart_handle_break(struct uart_port *port)
}
#endif
if (port->flags & UPF_SAK)
- do_SAK(info->tty);
+ do_SAK(info->port.tty);
return 0;
}
@@ -501,9 +499,9 @@ uart_handle_dcd_change(struct uart_port *port, unsigned int status)
if (info->flags & UIF_CHECK_CD) {
if (status)
- wake_up_interruptible(&info->open_wait);
- else if (info->tty)
- tty_hangup(info->tty);
+ wake_up_interruptible(&info->port.open_wait);
+ else if (info->port.tty)
+ tty_hangup(info->port.tty);
}
}
@@ -516,7 +514,7 @@ static inline void
uart_handle_cts_change(struct uart_port *port, unsigned int status)
{
struct uart_info *info = port->info;
- struct tty_struct *tty = info->tty;
+ struct tty_struct *tty = info->port.tty;
port->icount.cts++;
@@ -542,7 +540,7 @@ static inline void
uart_insert_char(struct uart_port *port, unsigned int status,
unsigned int overrun, unsigned int ch, unsigned int flag)
{
- struct tty_struct *tty = port->info->tty;
+ struct tty_struct *tty = port->info->port.tty;
if ((status & port->ignore_status_mask & ~overrun) == 0)
tty_insert_flip_char(tty, ch, flag);
^ permalink raw reply related [flat|nested] 32+ messages in thread* [PATCH 17/20] riscom8: remove bogus checks
2008-05-19 14:50 [PATCH 00/20] Implment a tty port structure and supporting logic Alan Cox
` (14 preceding siblings ...)
2008-05-19 14:51 ` [PATCH 15/20] serial: " Alan Cox
@ 2008-05-19 14:51 ` Alan Cox
2008-05-19 14:51 ` [PATCH 18/20] tty: add more tty_port fields Alan Cox
` (5 subsequent siblings)
21 siblings, 0 replies; 32+ messages in thread
From: Alan Cox @ 2008-05-19 14:51 UTC (permalink / raw)
To: linux-kernel, akpm, greg
From: Alan Cox <alan@redhat.com>
Chris Malley posted a patch removing a NULL check in the riscom8 driver.
Further analysis shows that even more of the tests are irrelevant so we
can delete lots of stuff
---
drivers/char/riscom8.c | 32 ++++++++------------------------
1 files changed, 8 insertions(+), 24 deletions(-)
diff --git a/drivers/char/riscom8.c b/drivers/char/riscom8.c
index b0ba241..3ca8957 100644
--- a/drivers/char/riscom8.c
+++ b/drivers/char/riscom8.c
@@ -638,9 +638,6 @@ static void rc_change_speed(struct riscom_board *bp, struct riscom_port *port)
unsigned char cor1 = 0, cor3 = 0;
unsigned char mcor1 = 0, mcor2 = 0;
- if (tty == NULL || tty->termios == NULL)
- return;
-
port->IER = 0;
port->COR2 = 0;
port->MSVR = MSVR_RTS;
@@ -794,8 +791,7 @@ static int rc_setup_port(struct riscom_board *bp, struct riscom_port *port)
spin_lock_irqsave(&riscom_lock, flags);
- if (port->port.tty)
- clear_bit(TTY_IO_ERROR, &port->port.tty->flags);
+ clear_bit(TTY_IO_ERROR, &port->port.tty->flags);
if (port->port.count == 1)
bp->count++;
port->xmit_cnt = port->xmit_head = port->xmit_tail = 0;
@@ -807,10 +803,9 @@ static int rc_setup_port(struct riscom_board *bp, struct riscom_port *port)
}
/* Must be called with interrupts disabled */
-static void rc_shutdown_port(struct riscom_board *bp, struct riscom_port *port)
+static void rc_shutdown_port(struct tty_struct *tty,
+ struct riscom_board *bp, struct riscom_port *port)
{
- struct tty_struct *tty;
-
if (!(port->port.flags & ASYNC_INITIALIZED))
return;
@@ -830,10 +825,7 @@ static void rc_shutdown_port(struct riscom_board *bp, struct riscom_port *port)
}
#endif
tty_port_free_xmit_buf(&port->port);
-
- tty = port->port.tty;
-
- if (tty == NULL || C_HUPCL(tty)) {
+ if (C_HUPCL(tty)) {
/* Drop DTR */
bp->DTR |= (1u << port_No(port));
rc_out(bp, RC_DTR, bp->DTR);
@@ -848,8 +840,7 @@ static void rc_shutdown_port(struct riscom_board *bp, struct riscom_port *port)
port->IER = 0;
rc_out(bp, CD180_IER, port->IER);
- if (tty)
- set_bit(TTY_IO_ERROR, &tty->flags);
+ set_bit(TTY_IO_ERROR, &tty->flags);
port->port.flags &= ~ASYNC_INITIALIZED;
if (--bp->count < 0) {
@@ -1067,7 +1058,7 @@ static void rc_close(struct tty_struct *tty, struct file *filp)
break;
}
}
- rc_shutdown_port(bp, port);
+ rc_shutdown_port(tty, bp, port);
rc_flush_buffer(tty);
tty_ldisc_flush(tty);
@@ -1098,9 +1089,6 @@ static int rc_write(struct tty_struct *tty,
bp = port_Board(port);
- if (!tty || !port->port.xmit_buf)
- return 0;
-
while (1) {
spin_lock_irqsave(&riscom_lock, flags);
@@ -1141,9 +1129,6 @@ static int rc_put_char(struct tty_struct *tty, unsigned char ch)
if (rc_paranoia_check(port, tty->name, "rc_put_char"))
return 0;
- if (!tty || !port->port.xmit_buf)
- return 0;
-
spin_lock_irqsave(&riscom_lock, flags);
if (port->xmit_cnt >= SERIAL_XMIT_SIZE - 1)
@@ -1167,8 +1152,7 @@ static void rc_flush_chars(struct tty_struct *tty)
if (rc_paranoia_check(port, tty->name, "rc_flush_chars"))
return;
- if (port->xmit_cnt <= 0 || tty->stopped || tty->hw_stopped ||
- !port->port.xmit_buf)
+ if (port->xmit_cnt <= 0 || tty->stopped || tty->hw_stopped)
return;
spin_lock_irqsave(&riscom_lock, flags);
@@ -1488,7 +1472,7 @@ static void rc_hangup(struct tty_struct *tty)
bp = port_Board(port);
- rc_shutdown_port(bp, port);
+ rc_shutdown_port(tty, bp, port);
port->port.count = 0;
port->port.flags &= ~ASYNC_NORMAL_ACTIVE;
port->port.tty = NULL;
^ permalink raw reply related [flat|nested] 32+ messages in thread* [PATCH 18/20] tty: add more tty_port fields
2008-05-19 14:50 [PATCH 00/20] Implment a tty port structure and supporting logic Alan Cox
` (15 preceding siblings ...)
2008-05-19 14:51 ` [PATCH 17/20] riscom8: remove bogus checks Alan Cox
@ 2008-05-19 14:51 ` Alan Cox
2008-05-19 14:51 ` [PATCH 19/20] whiteheat: coding style Alan Cox
` (4 subsequent siblings)
21 siblings, 0 replies; 32+ messages in thread
From: Alan Cox @ 2008-05-19 14:51 UTC (permalink / raw)
To: linux-kernel, akpm, greg
From: Alan Cox <alan@redhat.com>
Move more bits into the tty_port structure
---
drivers/char/cyclades.c | 28 ++++----
drivers/char/isicom.c | 28 ++++----
drivers/char/moxa.c | 8 +-
drivers/char/mxser.c | 29 +++-----
drivers/char/riscom8.c | 24 +++----
drivers/char/riscom8.h | 2 -
drivers/char/rocket.c | 23 +++---
drivers/char/rocket.h | 4 +
drivers/char/rocket_int.h | 2 -
drivers/char/specialix.c | 153 ++++++++++++++++++++----------------------
drivers/char/specialix_io8.h | 8 --
drivers/char/sx.c | 2 -
drivers/char/synclink.c | 16 ++--
drivers/char/synclink_gt.c | 16 ++--
drivers/char/synclinkmp.c | 14 ++--
drivers/char/tty_io.c | 2 +
include/linux/cyclades.h | 6 +-
include/linux/tty.h | 2 +
18 files changed, 169 insertions(+), 198 deletions(-)
diff --git a/drivers/char/cyclades.c b/drivers/char/cyclades.c
index 44fda9b..b85f518 100644
--- a/drivers/char/cyclades.c
+++ b/drivers/char/cyclades.c
@@ -2677,8 +2677,8 @@ static void cy_close(struct tty_struct *tty, struct file *filp)
*/
tty->closing = 1;
spin_unlock_irqrestore(&card->card_lock, flags);
- if (info->closing_wait != CY_CLOSING_WAIT_NONE)
- tty_wait_until_sent(tty, info->closing_wait);
+ if (info->port.closing_wait != CY_CLOSING_WAIT_NONE)
+ tty_wait_until_sent(tty, info->port.closing_wait);
spin_lock_irqsave(&card->card_lock, flags);
@@ -2734,9 +2734,9 @@ static void cy_close(struct tty_struct *tty, struct file *filp)
info->port.tty = NULL;
if (info->port.blocked_open) {
spin_unlock_irqrestore(&card->card_lock, flags);
- if (info->close_delay) {
+ if (info->port.close_delay) {
msleep_interruptible(jiffies_to_msecs
- (info->close_delay));
+ (info->port.close_delay));
}
wake_up_interruptible(&info->port.open_wait);
spin_lock_irqsave(&card->card_lock, flags);
@@ -3382,8 +3382,8 @@ get_serial_info(struct cyclades_port *info,
cinfo->first_line;
tmp.irq = cinfo->irq;
tmp.flags = info->port.flags;
- tmp.close_delay = info->close_delay;
- tmp.closing_wait = info->closing_wait;
+ tmp.close_delay = info->port.close_delay;
+ tmp.closing_wait = info->port.closing_wait;
tmp.baud_base = info->baud;
tmp.custom_divisor = info->custom_divisor;
tmp.hub6 = 0; /*!!! */
@@ -3402,7 +3402,7 @@ set_serial_info(struct cyclades_port *info,
old_info = *info;
if (!capable(CAP_SYS_ADMIN)) {
- if (new_serial.close_delay != info->close_delay ||
+ if (new_serial.close_delay != info->port.close_delay ||
new_serial.baud_base != info->baud ||
(new_serial.flags & ASYNC_FLAGS &
~ASYNC_USR_MASK) !=
@@ -3424,8 +3424,8 @@ set_serial_info(struct cyclades_port *info,
info->custom_divisor = new_serial.custom_divisor;
info->port.flags = (info->port.flags & ~ASYNC_FLAGS) |
(new_serial.flags & ASYNC_FLAGS);
- info->close_delay = new_serial.close_delay * HZ / 100;
- info->closing_wait = new_serial.closing_wait * HZ / 100;
+ info->port.close_delay = new_serial.close_delay * HZ / 100;
+ info->port.closing_wait = new_serial.closing_wait * HZ / 100;
check_and_exit:
if (info->port.flags & ASYNC_INITIALIZED) {
@@ -3971,11 +3971,11 @@ cy_ioctl(struct tty_struct *tty, struct file *file,
break;
#endif /* CONFIG_CYZ_INTR */
case CYSETWAIT:
- info->closing_wait = (unsigned short)arg * HZ / 100;
+ info->port.closing_wait = (unsigned short)arg * HZ / 100;
ret_val = 0;
break;
case CYGETWAIT:
- ret_val = info->closing_wait / (HZ / 100);
+ ret_val = info->port.closing_wait / (HZ / 100);
break;
case TIOCGSERIAL:
ret_val = get_serial_info(info, argp);
@@ -4376,13 +4376,13 @@ static int __devinit cy_init_card(struct cyclades_card *cinfo)
for (port = cinfo->first_line; port < cinfo->first_line + nports;
port++) {
info = &cinfo->ports[port - cinfo->first_line];
+ tty_port_init(&info->port);
info->magic = CYCLADES_MAGIC;
info->card = cinfo;
info->line = port;
- info->closing_wait = CLOSING_WAIT_DELAY;
- info->close_delay = 5 * HZ / 10;
- tty_port_init(&info->port);
+ info->port.closing_wait = CLOSING_WAIT_DELAY;
+ info->port.close_delay = 5 * HZ / 10;
info->port.flags = STD_COM_FLAGS;
init_completion(&info->shutdown_wait);
init_waitqueue_head(&info->delta_msr_wait);
diff --git a/drivers/char/isicom.c b/drivers/char/isicom.c
index 20be56f..fdc9420 100644
--- a/drivers/char/isicom.c
+++ b/drivers/char/isicom.c
@@ -199,10 +199,8 @@ struct isi_board {
struct isi_port {
unsigned short magic;
struct tty_port port;
- int close_delay;
u16 channel;
u16 status;
- u16 closing_wait;
struct isi_board *card;
unsigned char *xmit_buf;
int xmit_head;
@@ -1051,8 +1049,8 @@ static void isicom_close(struct tty_struct *tty, struct file *filp)
tty->closing = 1;
spin_unlock_irqrestore(&card->card_lock, flags);
- if (port->closing_wait != ASYNC_CLOSING_WAIT_NONE)
- tty_wait_until_sent(tty, port->closing_wait);
+ if (port->port.closing_wait != ASYNC_CLOSING_WAIT_NONE)
+ tty_wait_until_sent(tty, port->port.closing_wait);
/* indicate to the card that no more data can be received
on this port */
spin_lock_irqsave(&card->card_lock, flags);
@@ -1071,10 +1069,10 @@ static void isicom_close(struct tty_struct *tty, struct file *filp)
if (port->port.blocked_open) {
spin_unlock_irqrestore(&card->card_lock, flags);
- if (port->close_delay) {
+ if (port->port.close_delay) {
pr_dbg("scheduling until time out.\n");
msleep_interruptible(
- jiffies_to_msecs(port->close_delay));
+ jiffies_to_msecs(port->port.close_delay));
}
spin_lock_irqsave(&card->card_lock, flags);
wake_up_interruptible(&port->port.open_wait);
@@ -1256,8 +1254,8 @@ static int isicom_set_serial_info(struct isi_port *port,
(newinfo.flags & ASYNC_SPD_MASK));
if (!capable(CAP_SYS_ADMIN)) {
- if ((newinfo.close_delay != port->close_delay) ||
- (newinfo.closing_wait != port->closing_wait) ||
+ if ((newinfo.close_delay != port->port.close_delay) ||
+ (newinfo.closing_wait != port->port.closing_wait) ||
((newinfo.flags & ~ASYNC_USR_MASK) !=
(port->port.flags & ~ASYNC_USR_MASK))) {
unlock_kernel();
@@ -1266,8 +1264,8 @@ static int isicom_set_serial_info(struct isi_port *port,
port->port.flags = ((port->port.flags & ~ASYNC_USR_MASK) |
(newinfo.flags & ASYNC_USR_MASK));
} else {
- port->close_delay = newinfo.close_delay;
- port->closing_wait = newinfo.closing_wait;
+ port->port.close_delay = newinfo.close_delay;
+ port->port.closing_wait = newinfo.closing_wait;
port->port.flags = ((port->port.flags & ~ASYNC_FLAGS) |
(newinfo.flags & ASYNC_FLAGS));
}
@@ -1294,8 +1292,8 @@ static int isicom_get_serial_info(struct isi_port *port,
out_info.irq = port->card->irq;
out_info.flags = port->port.flags;
/* out_info.baud_base = ? */
- out_info.close_delay = port->close_delay;
- out_info.closing_wait = port->closing_wait;
+ out_info.close_delay = port->port.close_delay;
+ out_info.closing_wait = port->port.closing_wait;
unlock_kernel();
if (copy_to_user(info, &out_info, sizeof(out_info)))
return -EFAULT;
@@ -1796,13 +1794,13 @@ static int __init isicom_init(void)
isi_card[idx].ports = port;
spin_lock_init(&isi_card[idx].card_lock);
for (channel = 0; channel < 16; channel++, port++) {
+ tty_port_init(&port->port);
port->magic = ISICOM_MAGIC;
port->card = &isi_card[idx];
port->channel = channel;
- port->close_delay = 50 * HZ/100;
- port->closing_wait = 3000 * HZ/100;
+ port->port.close_delay = 50 * HZ/100;
+ port->port.closing_wait = 3000 * HZ/100;
port->status = 0;
- tty_port_init(&port->port);
/* . . . */
}
isi_card[idx].base = 0;
diff --git a/drivers/char/moxa.c b/drivers/char/moxa.c
index bb9bcff..f8d48ed 100644
--- a/drivers/char/moxa.c
+++ b/drivers/char/moxa.c
@@ -135,7 +135,6 @@ struct moxa_port {
void __iomem *tableAddr;
int type;
- int close_delay;
int cflag;
unsigned long statusflags;
@@ -822,10 +821,9 @@ static int moxa_init_board(struct moxa_board_conf *brd, struct device *dev)
}
for (i = 0, p = brd->ports; i < MAX_PORTS_PER_BOARD; i++, p++) {
+ tty_port_init(&p->port);
p->type = PORT_16550A;
- p->close_delay = 5 * HZ / 10;
p->cflag = B9600 | CS8 | CREAD | CLOCAL | HUPCL;
- tty_port_init(&p->port);
}
switch (brd->boardType) {
@@ -2124,7 +2122,7 @@ static int moxa_get_serial_info(struct moxa_port *info,
.line = info->port.tty->index,
.flags = info->port.flags,
.baud_base = 921600,
- .close_delay = info->close_delay
+ .close_delay = info->port.close_delay
};
return copy_to_user(retinfo, &tmp, sizeof(*retinfo)) ? -EFAULT : 0;
}
@@ -2148,7 +2146,7 @@ static int moxa_set_serial_info(struct moxa_port *info,
(info->port.flags & ~ASYNC_USR_MASK)))
return -EPERM;
} else
- info->close_delay = new_serial.close_delay * HZ / 100;
+ info->port.close_delay = new_serial.close_delay * HZ / 100;
new_serial.flags = (new_serial.flags & ~ASYNC_FLAGS);
new_serial.flags |= (info->port.flags & ASYNC_FLAGS);
diff --git a/drivers/char/mxser.c b/drivers/char/mxser.c
index e83ccee..6307e30 100644
--- a/drivers/char/mxser.c
+++ b/drivers/char/mxser.c
@@ -243,10 +243,7 @@ struct mxser_port {
unsigned char ldisc_stop_rx;
int custom_divisor;
- int close_delay;
- unsigned short closing_wait;
unsigned char err_shadow;
- unsigned long event;
struct async_icount icount; /* kernel counters for 4 input interrupts */
int timeout;
@@ -1199,8 +1196,8 @@ static void mxser_close(struct tty_struct *tty, struct file *filp)
* the line discipline to only process XON/XOFF characters.
*/
tty->closing = 1;
- if (info->closing_wait != ASYNC_CLOSING_WAIT_NONE)
- tty_wait_until_sent(tty, info->closing_wait);
+ if (info->port.closing_wait != ASYNC_CLOSING_WAIT_NONE)
+ tty_wait_until_sent(tty, info->port.closing_wait);
/*
* At this point we stop accepting input. To do this, we
* disable the receive line status interrupts, and tell the
@@ -1231,11 +1228,10 @@ static void mxser_close(struct tty_struct *tty, struct file *filp)
tty_ldisc_flush(tty);
tty->closing = 0;
- info->event = 0;
info->port.tty = NULL;
if (info->port.blocked_open) {
- if (info->close_delay)
- schedule_timeout_interruptible(info->close_delay);
+ if (info->port.close_delay)
+ schedule_timeout_interruptible(info->port.close_delay);
wake_up_interruptible(&info->port.open_wait);
}
@@ -1370,8 +1366,8 @@ static int mxser_get_serial_info(struct mxser_port *info,
.irq = info->board->irq,
.flags = info->port.flags,
.baud_base = info->baud_base,
- .close_delay = info->close_delay,
- .closing_wait = info->closing_wait,
+ .close_delay = info->port.close_delay,
+ .closing_wait = info->port.closing_wait,
.custom_divisor = info->custom_divisor,
.hub6 = 0
};
@@ -1402,7 +1398,7 @@ static int mxser_set_serial_info(struct mxser_port *info,
if (!capable(CAP_SYS_ADMIN)) {
if ((new_serial.baud_base != info->baud_base) ||
- (new_serial.close_delay != info->close_delay) ||
+ (new_serial.close_delay != info->port.close_delay) ||
((new_serial.flags & ~ASYNC_USR_MASK) != (info->port.flags & ~ASYNC_USR_MASK)))
return -EPERM;
info->port.flags = ((info->port.flags & ~ASYNC_USR_MASK) |
@@ -1414,8 +1410,8 @@ static int mxser_set_serial_info(struct mxser_port *info,
*/
info->port.flags = ((info->port.flags & ~ASYNC_FLAGS) |
(new_serial.flags & ASYNC_FLAGS));
- info->close_delay = new_serial.close_delay * HZ / 100;
- info->closing_wait = new_serial.closing_wait * HZ / 100;
+ info->port.close_delay = new_serial.close_delay * HZ / 100;
+ info->port.closing_wait = new_serial.closing_wait * HZ / 100;
info->port.tty->low_latency =
(info->port.flags & ASYNC_LOW_LATENCY) ? 1 : 0;
info->port.tty->low_latency = 0;
@@ -2214,7 +2210,6 @@ static void mxser_hangup(struct tty_struct *tty)
mxser_flush_buffer(tty);
mxser_shutdown(info);
- info->event = 0;
info->port.count = 0;
info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
info->port.tty = NULL;
@@ -2545,6 +2540,7 @@ static int __devinit mxser_initbrd(struct mxser_board *brd,
for (i = 0; i < brd->info->nports; i++) {
info = &brd->ports[i];
+ tty_port_init(&info->port);
info->board = brd;
info->stop_rx = 0;
info->ldisc_stop_rx = 0;
@@ -2559,10 +2555,9 @@ static int __devinit mxser_initbrd(struct mxser_board *brd,
process_txrx_fifo(info);
info->custom_divisor = info->baud_base * 16;
- info->close_delay = 5 * HZ / 10;
- info->closing_wait = 30 * HZ;
+ info->port.close_delay = 5 * HZ / 10;
+ info->port.closing_wait = 30 * HZ;
info->normal_termios = mxvar_sdriver->init_termios;
- tty_port_init(&info->port);
init_waitqueue_head(&info->delta_msr_wait);
memset(&info->mon_data, 0, sizeof(struct mxser_mon));
info->err_shadow = 0;
diff --git a/drivers/char/riscom8.c b/drivers/char/riscom8.c
index 3ca8957..724b2b2 100644
--- a/drivers/char/riscom8.c
+++ b/drivers/char/riscom8.c
@@ -1032,8 +1032,8 @@ static void rc_close(struct tty_struct *tty, struct file *filp)
* the line discipline to only process XON/XOFF characters.
*/
tty->closing = 1;
- if (port->closing_wait != ASYNC_CLOSING_WAIT_NONE)
- tty_wait_until_sent(tty, port->closing_wait);
+ if (port->port.closing_wait != ASYNC_CLOSING_WAIT_NONE)
+ tty_wait_until_sent(tty, port->port.closing_wait);
/*
* At this point we stop accepting input. To do this, we
* disable the receive line status interrupts, and tell the
@@ -1065,8 +1065,8 @@ static void rc_close(struct tty_struct *tty, struct file *filp)
tty->closing = 0;
port->port.tty = NULL;
if (port->port.blocked_open) {
- if (port->close_delay)
- msleep_interruptible(jiffies_to_msecs(port->close_delay));
+ if (port->port.close_delay)
+ msleep_interruptible(jiffies_to_msecs(port->port.close_delay));
wake_up_interruptible(&port->port.open_wait);
}
port->port.flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
@@ -1295,8 +1295,8 @@ static int rc_set_serial_info(struct riscom_port *port,
(tmp.flags & ASYNC_SPD_MASK));
if (!capable(CAP_SYS_ADMIN)) {
- if ((tmp.close_delay != port->close_delay) ||
- (tmp.closing_wait != port->closing_wait) ||
+ if ((tmp.close_delay != port->port.close_delay) ||
+ (tmp.closing_wait != port->port.closing_wait) ||
((tmp.flags & ~ASYNC_USR_MASK) !=
(port->port.flags & ~ASYNC_USR_MASK)))
return -EPERM;
@@ -1305,8 +1305,8 @@ static int rc_set_serial_info(struct riscom_port *port,
} else {
port->port.flags = ((port->port.flags & ~ASYNC_FLAGS) |
(tmp.flags & ASYNC_FLAGS));
- port->close_delay = tmp.close_delay;
- port->closing_wait = tmp.closing_wait;
+ port->port.close_delay = tmp.close_delay;
+ port->port.closing_wait = tmp.closing_wait;
}
if (change_speed) {
unsigned long flags;
@@ -1331,8 +1331,8 @@ static int rc_get_serial_info(struct riscom_port *port,
tmp.irq = bp->irq;
tmp.flags = port->port.flags;
tmp.baud_base = (RC_OSCFREQ + CD180_TPC/2) / CD180_TPC;
- tmp.close_delay = port->close_delay * HZ/100;
- tmp.closing_wait = port->closing_wait * HZ/100;
+ tmp.close_delay = port->port.close_delay * HZ/100;
+ tmp.closing_wait = port->port.closing_wait * HZ/100;
tmp.xmit_fifo_size = CD180_NFIFO;
return copy_to_user(retinfo, &tmp, sizeof(tmp)) ? -EFAULT : 0;
}
@@ -1549,10 +1549,8 @@ static int __init rc_init_drivers(void)
}
memset(rc_port, 0, sizeof(rc_port));
for (i = 0; i < RC_NPORT * RC_NBOARD; i++) {
- rc_port[i].magic = RISCOM8_MAGIC;
- rc_port[i].close_delay = 50 * HZ / 100;
- rc_port[i].closing_wait = 3000 * HZ / 100;
tty_port_init(&rc_port[i].port);
+ rc_port[i].magic = RISCOM8_MAGIC;
}
return 0;
}
diff --git a/drivers/char/riscom8.h b/drivers/char/riscom8.h
index 29ddbab..c9876b3 100644
--- a/drivers/char/riscom8.h
+++ b/drivers/char/riscom8.h
@@ -69,14 +69,12 @@ struct riscom_port {
struct tty_port port;
int baud_base;
int timeout;
- int close_delay;
int custom_divisor;
int xmit_head;
int xmit_tail;
int xmit_cnt;
short wakeup_chars;
short break_length;
- unsigned short closing_wait;
unsigned char mark_mask;
unsigned char IER;
unsigned char MSVR;
diff --git a/drivers/char/rocket.c b/drivers/char/rocket.c
index ab04adb..bdced0e 100644
--- a/drivers/char/rocket.c
+++ b/drivers/char/rocket.c
@@ -72,6 +72,7 @@
#include <linux/tty.h>
#include <linux/tty_driver.h>
#include <linux/tty_flip.h>
+#include <linux/serial.h>
#include <linux/string.h>
#include <linux/fcntl.h>
#include <linux/ptrace.h>
@@ -81,7 +82,7 @@
#include <linux/completion.h>
#include <linux/wait.h>
#include <linux/pci.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
#include <asm/atomic.h>
#include <asm/unaligned.h>
#include <linux/bitops.h>
@@ -648,8 +649,8 @@ static void init_r_port(int board, int aiop, int chan, struct pci_dev *pci_dev)
info->board = board;
info->aiop = aiop;
info->chan = chan;
- info->closing_wait = 3000;
- info->close_delay = 50;
+ info->port.closing_wait = 3000;
+ info->port.close_delay = 50;
init_waitqueue_head(&info->port.open_wait);
init_completion(&info->close_wait);
info->flags &= ~ROCKET_MODE_MASK;
@@ -1137,8 +1138,8 @@ static void rp_close(struct tty_struct *tty, struct file *filp)
/*
* Wait for the transmit buffer to clear
*/
- if (info->closing_wait != ROCKET_CLOSING_WAIT_NONE)
- tty_wait_until_sent(tty, info->closing_wait);
+ if (info->port.closing_wait != ROCKET_CLOSING_WAIT_NONE)
+ tty_wait_until_sent(tty, info->port.closing_wait);
/*
* Before we drop DTR, make sure the UART transmitter
* has completely drained; this is especially
@@ -1168,8 +1169,8 @@ static void rp_close(struct tty_struct *tty, struct file *filp)
clear_bit((info->aiop * 8) + info->chan, (void *) &xmit_flags[info->board]);
if (info->port.blocked_open) {
- if (info->close_delay) {
- msleep_interruptible(jiffies_to_msecs(info->close_delay));
+ if (info->port.close_delay) {
+ msleep_interruptible(jiffies_to_msecs(info->port.close_delay));
}
wake_up_interruptible(&info->port.open_wait);
} else {
@@ -1327,8 +1328,8 @@ static int get_config(struct r_port *info, struct rocket_config __user *retinfo)
memset(&tmp, 0, sizeof (tmp));
tmp.line = info->line;
tmp.flags = info->flags;
- tmp.close_delay = info->close_delay;
- tmp.closing_wait = info->closing_wait;
+ tmp.close_delay = info->port.close_delay;
+ tmp.closing_wait = info->port.closing_wait;
tmp.port = rcktpt_io_addr[(info->line >> 5) & 3];
if (copy_to_user(retinfo, &tmp, sizeof (*retinfo)))
@@ -1353,8 +1354,8 @@ static int set_config(struct r_port *info, struct rocket_config __user *new_info
}
info->flags = ((info->flags & ~ROCKET_FLAGS) | (new_serial.flags & ROCKET_FLAGS));
- info->close_delay = new_serial.close_delay;
- info->closing_wait = new_serial.closing_wait;
+ info->port.close_delay = new_serial.close_delay;
+ info->port.closing_wait = new_serial.closing_wait;
if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_HI)
info->port.tty->alt_speed = 57600;
diff --git a/drivers/char/rocket.h b/drivers/char/rocket.h
index ae6b04f..a8b0919 100644
--- a/drivers/char/rocket.h
+++ b/drivers/char/rocket.h
@@ -64,8 +64,8 @@ struct rocket_version {
/*
* For closing_wait and closing_wait2
*/
-#define ROCKET_CLOSING_WAIT_NONE 65535
-#define ROCKET_CLOSING_WAIT_INF 0
+#define ROCKET_CLOSING_WAIT_NONE ASYNC_CLOSING_WAIT_NONE
+#define ROCKET_CLOSING_WAIT_INF ASYNC_CLOSING_WAIT_INF
/*
* Rocketport ioctls -- "RP"
diff --git a/drivers/char/rocket_int.h b/drivers/char/rocket_int.h
index 3affc48..21f3ff5 100644
--- a/drivers/char/rocket_int.h
+++ b/drivers/char/rocket_int.h
@@ -1133,8 +1133,6 @@ struct r_port {
unsigned int chan:3;
CONTROLLER_t *ctlp;
CHANNEL_t channel;
- int closing_wait;
- int close_delay;
int intmask;
int xmit_fifo_room; /* room in xmit fifo */
unsigned char *xmit_buf;
diff --git a/drivers/char/specialix.c b/drivers/char/specialix.c
index 2ee4d98..037dc47 100644
--- a/drivers/char/specialix.c
+++ b/drivers/char/specialix.c
@@ -608,9 +608,9 @@ static inline struct specialix_port * sx_get_port(struct specialix_board * bp,
dprintk (SX_DEBUG_CHAN, "channel: %d\n", channel);
if (channel < CD186x_NCH) {
port = &sx_port[board_No(bp) * SX_NPORT + channel];
- dprintk (SX_DEBUG_CHAN, "port: %d %p flags: 0x%x\n",board_No(bp) * SX_NPORT + channel, port, port->flags & ASYNC_INITIALIZED);
+ dprintk (SX_DEBUG_CHAN, "port: %d %p flags: 0x%lx\n",board_No(bp) * SX_NPORT + channel, port, port->port.flags & ASYNC_INITIALIZED);
- if (port->flags & ASYNC_INITIALIZED) {
+ if (port->port.flags & ASYNC_INITIALIZED) {
dprintk (SX_DEBUG_CHAN, "port: %d %p\n", channel, port);
func_exit();
return port;
@@ -637,7 +637,7 @@ static inline void sx_receive_exc(struct specialix_board * bp)
func_exit();
return;
}
- tty = port->tty;
+ tty = port->port.tty;
status = sx_in(bp, CD186x_RCSR);
@@ -673,7 +673,7 @@ static inline void sx_receive_exc(struct specialix_board * bp)
dprintk(SX_DEBUG_RX, "sx%d: port %d: Handling break...\n",
board_No(bp), port_No(port));
flag = TTY_BREAK;
- if (port->flags & ASYNC_SAK)
+ if (port->port.flags & ASYNC_SAK)
do_SAK(tty);
} else if (status & RCSR_PE)
@@ -707,7 +707,7 @@ static inline void sx_receive(struct specialix_board * bp)
func_exit();
return;
}
- tty = port->tty;
+ tty = port->port.tty;
count = sx_in(bp, CD186x_RDCR);
dprintk (SX_DEBUG_RX, "port: %p: count: %d\n", port, count);
@@ -734,7 +734,7 @@ static inline void sx_transmit(struct specialix_board * bp)
return;
}
dprintk (SX_DEBUG_TX, "port: %p\n", port);
- tty = port->tty;
+ tty = port->port.tty;
if (port->IER & IER_TXEMPTY) {
/* FIFO drained */
@@ -811,7 +811,7 @@ static inline void sx_check_modem(struct specialix_board * bp)
if (!(port = sx_get_port(bp, "Modem")))
return;
- tty = port->tty;
+ tty = port->port.tty;
mcr = sx_in(bp, CD186x_MCR);
printk ("mcr = %02x.\n", mcr);
@@ -821,7 +821,7 @@ static inline void sx_check_modem(struct specialix_board * bp)
msvr_cd = sx_in(bp, CD186x_MSVR) & MSVR_CD;
if (msvr_cd) {
dprintk (SX_DEBUG_SIGNALS, "Waking up guys in open.\n");
- wake_up_interruptible(&port->open_wait);
+ wake_up_interruptible(&port->port.open_wait);
} else {
dprintk (SX_DEBUG_SIGNALS, "Sending HUP.\n");
tty_hangup(tty);
@@ -1030,7 +1030,7 @@ static void sx_change_speed(struct specialix_board *bp, struct specialix_port *p
func_enter();
- if (!(tty = port->tty) || !tty->termios) {
+ if (!(tty = port->port.tty) || !tty->termios) {
func_exit();
return;
}
@@ -1052,9 +1052,9 @@ static void sx_change_speed(struct specialix_board *bp, struct specialix_port *p
baud = tty_get_baud_rate(tty);
if (baud == 38400) {
- if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
+ if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
baud = 57600;
- if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
+ if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
baud = 115200;
}
@@ -1244,7 +1244,7 @@ static int sx_setup_port(struct specialix_board *bp, struct specialix_port *port
func_enter();
- if (port->flags & ASYNC_INITIALIZED) {
+ if (port->port.flags & ASYNC_INITIALIZED) {
func_exit();
return 0;
}
@@ -1268,12 +1268,12 @@ static int sx_setup_port(struct specialix_board *bp, struct specialix_port *port
spin_lock_irqsave(&port->lock, flags);
- if (port->tty)
- clear_bit(TTY_IO_ERROR, &port->tty->flags);
+ if (port->port.tty)
+ clear_bit(TTY_IO_ERROR, &port->port.tty->flags);
port->xmit_cnt = port->xmit_head = port->xmit_tail = 0;
sx_change_speed(bp, port);
- port->flags |= ASYNC_INITIALIZED;
+ port->port.flags |= ASYNC_INITIALIZED;
spin_unlock_irqrestore(&port->lock, flags);
@@ -1292,7 +1292,7 @@ static void sx_shutdown_port(struct specialix_board *bp, struct specialix_port *
func_enter();
- if (!(port->flags & ASYNC_INITIALIZED)) {
+ if (!(port->port.flags & ASYNC_INITIALIZED)) {
func_exit();
return;
}
@@ -1315,7 +1315,7 @@ static void sx_shutdown_port(struct specialix_board *bp, struct specialix_port *
spin_lock_irqsave(&bp->lock, flags);
sx_out(bp, CD186x_CAR, port_No(port));
- if (!(tty = port->tty) || C_HUPCL(tty)) {
+ if (!(tty = port->port.tty) || C_HUPCL(tty)) {
/* Drop DTR */
sx_out(bp, CD186x_MSVDTR, 0);
}
@@ -1330,7 +1330,7 @@ static void sx_shutdown_port(struct specialix_board *bp, struct specialix_port *
spin_unlock_irqrestore(&bp->lock, flags);
if (tty)
set_bit(TTY_IO_ERROR, &tty->flags);
- port->flags &= ~ASYNC_INITIALIZED;
+ port->port.flags &= ~ASYNC_INITIALIZED;
if (!bp->count)
sx_shutdown_board(bp);
@@ -1354,9 +1354,9 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
* If the device is in the middle of being closed, then block
* until it's done, and then try again.
*/
- if (tty_hung_up_p(filp) || port->flags & ASYNC_CLOSING) {
- interruptible_sleep_on(&port->close_wait);
- if (port->flags & ASYNC_HUP_NOTIFY) {
+ if (tty_hung_up_p(filp) || port->port.flags & ASYNC_CLOSING) {
+ interruptible_sleep_on(&port->port.close_wait);
+ if (port->port.flags & ASYNC_HUP_NOTIFY) {
func_exit();
return -EAGAIN;
} else {
@@ -1371,7 +1371,7 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
*/
if ((filp->f_flags & O_NONBLOCK) ||
(tty->flags & (1 << TTY_IO_ERROR))) {
- port->flags |= ASYNC_NORMAL_ACTIVE;
+ port->port.flags |= ASYNC_NORMAL_ACTIVE;
func_exit();
return 0;
}
@@ -1387,13 +1387,13 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
* exit, either normal or abnormal.
*/
retval = 0;
- add_wait_queue(&port->open_wait, &wait);
+ add_wait_queue(&port->port.open_wait, &wait);
spin_lock_irqsave(&port->lock, flags);
if (!tty_hung_up_p(filp)) {
- port->count--;
+ port->port.count--;
}
spin_unlock_irqrestore(&port->lock, flags);
- port->blocked_open++;
+ port->port.blocked_open++;
while (1) {
spin_lock_irqsave(&bp->lock, flags);
sx_out(bp, CD186x_CAR, port_No(port));
@@ -1410,14 +1410,14 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
spin_unlock_irqrestore(&bp->lock, flags);
set_current_state(TASK_INTERRUPTIBLE);
if (tty_hung_up_p(filp) ||
- !(port->flags & ASYNC_INITIALIZED)) {
- if (port->flags & ASYNC_HUP_NOTIFY)
+ !(port->port.flags & ASYNC_INITIALIZED)) {
+ if (port->port.flags & ASYNC_HUP_NOTIFY)
retval = -EAGAIN;
else
retval = -ERESTARTSYS;
break;
}
- if (!(port->flags & ASYNC_CLOSING) &&
+ if (!(port->port.flags & ASYNC_CLOSING) &&
(do_clocal || CD))
break;
if (signal_pending(current)) {
@@ -1428,19 +1428,19 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
}
set_current_state(TASK_RUNNING);
- remove_wait_queue(&port->open_wait, &wait);
+ remove_wait_queue(&port->port.open_wait, &wait);
spin_lock_irqsave(&port->lock, flags);
if (!tty_hung_up_p(filp)) {
- port->count++;
+ port->port.count++;
}
- port->blocked_open--;
+ port->port.blocked_open--;
spin_unlock_irqrestore(&port->lock, flags);
if (retval) {
func_exit();
return retval;
}
- port->flags |= ASYNC_NORMAL_ACTIVE;
+ port->port.flags |= ASYNC_NORMAL_ACTIVE;
func_exit();
return 0;
}
@@ -1484,10 +1484,10 @@ static int sx_open(struct tty_struct * tty, struct file * filp)
}
spin_lock_irqsave(&bp->lock, flags);
- port->count++;
+ port->port.count++;
bp->count++;
tty->driver_data = port;
- port->tty = tty;
+ port->port.tty = tty;
spin_unlock_irqrestore(&bp->lock, flags);
if ((error = sx_setup_port(bp, port))) {
@@ -1547,15 +1547,15 @@ static void sx_close(struct tty_struct * tty, struct file * filp)
}
bp = port_Board(port);
- if ((tty->count == 1) && (port->count != 1)) {
+ if ((tty->count == 1) && (port->port.count != 1)) {
printk(KERN_ERR "sx%d: sx_close: bad port count;"
" tty->count is 1, port count is %d\n",
- board_No(bp), port->count);
- port->count = 1;
+ board_No(bp), port->port.count);
+ port->port.count = 1;
}
- if (port->count > 1) {
- port->count--;
+ if (port->port.count > 1) {
+ port->port.count--;
bp->count--;
spin_unlock_irqrestore(&port->lock, flags);
@@ -1563,7 +1563,7 @@ static void sx_close(struct tty_struct * tty, struct file * filp)
func_exit();
return;
}
- port->flags |= ASYNC_CLOSING;
+ port->port.flags |= ASYNC_CLOSING;
/*
* Now we wait for the transmit buffer to clear; and we notify
* the line discipline to only process XON/XOFF characters.
@@ -1571,8 +1571,8 @@ static void sx_close(struct tty_struct * tty, struct file * filp)
tty->closing = 1;
spin_unlock_irqrestore(&port->lock, flags);
dprintk (SX_DEBUG_OPEN, "Closing\n");
- if (port->closing_wait != ASYNC_CLOSING_WAIT_NONE) {
- tty_wait_until_sent(tty, port->closing_wait);
+ if (port->port.closing_wait != ASYNC_CLOSING_WAIT_NONE) {
+ tty_wait_until_sent(tty, port->port.closing_wait);
}
/*
* At this point we stop accepting input. To do this, we
@@ -1582,7 +1582,7 @@ static void sx_close(struct tty_struct * tty, struct file * filp)
*/
dprintk (SX_DEBUG_OPEN, "Closed\n");
port->IER &= ~IER_RXD;
- if (port->flags & ASYNC_INITIALIZED) {
+ if (port->port.flags & ASYNC_INITIALIZED) {
port->IER &= ~IER_TXRDY;
port->IER |= IER_TXEMPTY;
spin_lock_irqsave(&bp->lock, flags);
@@ -1611,10 +1611,10 @@ static void sx_close(struct tty_struct * tty, struct file * filp)
board_No(bp), bp->count, tty->index);
bp->count = 0;
}
- if (--port->count < 0) {
+ if (--port->port.count < 0) {
printk(KERN_ERR "sx%d: sx_close: bad port count for tty%d: %d\n",
- board_No(bp), port_No(port), port->count);
- port->count = 0;
+ board_No(bp), port_No(port), port->port.count);
+ port->port.count = 0;
}
sx_shutdown_port(bp, port);
@@ -1622,16 +1622,16 @@ static void sx_close(struct tty_struct * tty, struct file * filp)
tty_ldisc_flush(tty);
spin_lock_irqsave(&port->lock, flags);
tty->closing = 0;
- port->tty = NULL;
+ port->port.tty = NULL;
spin_unlock_irqrestore(&port->lock, flags);
- if (port->blocked_open) {
- if (port->close_delay) {
- msleep_interruptible(jiffies_to_msecs(port->close_delay));
+ if (port->port.blocked_open) {
+ if (port->port.close_delay) {
+ msleep_interruptible(jiffies_to_msecs(port->port.close_delay));
}
- wake_up_interruptible(&port->open_wait);
+ wake_up_interruptible(&port->port.open_wait);
}
- port->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
- wake_up_interruptible(&port->close_wait);
+ port->port.flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
+ wake_up_interruptible(&port->port.close_wait);
func_exit();
}
@@ -1815,7 +1815,7 @@ static int sx_tiocmget(struct tty_struct *tty, struct file *file)
dprintk (SX_DEBUG_INIT, "Got msvr[%d] = %02x, car = %d.\n",
port_No(port), status, sx_in (bp, CD186x_CAR));
dprintk (SX_DEBUG_INIT, "sx_port = %p, port = %p\n", sx_port, port);
- if (SX_CRTSCTS(port->tty)) {
+ if (SX_CRTSCTS(port->port.tty)) {
result = /* (status & MSVR_RTS) ? */ TIOCM_DTR /* : 0) */
| ((status & MSVR_DTR) ? TIOCM_RTS : 0)
| ((status & MSVR_CD) ? TIOCM_CAR : 0)
@@ -1857,7 +1857,7 @@ static int sx_tiocmset(struct tty_struct *tty, struct file *file,
/* if (set & TIOCM_DTR)
port->MSVR |= MSVR_DTR; */
- if (SX_CRTSCTS(port->tty)) {
+ if (SX_CRTSCTS(port->port.tty)) {
if (set & TIOCM_RTS)
port->MSVR |= MSVR_DTR;
} else {
@@ -1869,7 +1869,7 @@ static int sx_tiocmset(struct tty_struct *tty, struct file *file,
port->MSVR &= ~MSVR_RTS; */
/* if (clear & TIOCM_DTR)
port->MSVR &= ~MSVR_DTR; */
- if (SX_CRTSCTS(port->tty)) {
+ if (SX_CRTSCTS(port->port.tty)) {
if (clear & TIOCM_RTS)
port->MSVR &= ~MSVR_DTR;
} else {
@@ -1929,27 +1929,27 @@ static inline int sx_set_serial_info(struct specialix_port * port,
lock_kernel();
- change_speed = ((port->flags & ASYNC_SPD_MASK) !=
+ change_speed = ((port->port.flags & ASYNC_SPD_MASK) !=
(tmp.flags & ASYNC_SPD_MASK));
change_speed |= (tmp.custom_divisor != port->custom_divisor);
if (!capable(CAP_SYS_ADMIN)) {
- if ((tmp.close_delay != port->close_delay) ||
- (tmp.closing_wait != port->closing_wait) ||
+ if ((tmp.close_delay != port->port.close_delay) ||
+ (tmp.closing_wait != port->port.closing_wait) ||
((tmp.flags & ~ASYNC_USR_MASK) !=
- (port->flags & ~ASYNC_USR_MASK))) {
+ (port->port.flags & ~ASYNC_USR_MASK))) {
func_exit();
unlock_kernel();
return -EPERM;
}
- port->flags = ((port->flags & ~ASYNC_USR_MASK) |
+ port->port.flags = ((port->port.flags & ~ASYNC_USR_MASK) |
(tmp.flags & ASYNC_USR_MASK));
port->custom_divisor = tmp.custom_divisor;
} else {
- port->flags = ((port->flags & ~ASYNC_FLAGS) |
+ port->port.flags = ((port->port.flags & ~ASYNC_FLAGS) |
(tmp.flags & ASYNC_FLAGS));
- port->close_delay = tmp.close_delay;
- port->closing_wait = tmp.closing_wait;
+ port->port.close_delay = tmp.close_delay;
+ port->port.closing_wait = tmp.closing_wait;
port->custom_divisor = tmp.custom_divisor;
}
if (change_speed) {
@@ -1975,10 +1975,10 @@ static inline int sx_get_serial_info(struct specialix_port * port,
tmp.line = port - sx_port;
tmp.port = bp->base;
tmp.irq = bp->irq;
- tmp.flags = port->flags;
+ tmp.flags = port->port.flags;
tmp.baud_base = (SX_OSCFREQ + CD186x_TPC/2) / CD186x_TPC;
- tmp.close_delay = port->close_delay * HZ/100;
- tmp.closing_wait = port->closing_wait * HZ/100;
+ tmp.close_delay = port->port.close_delay * HZ/100;
+ tmp.closing_wait = port->port.closing_wait * HZ/100;
tmp.custom_divisor = port->custom_divisor;
tmp.xmit_fifo_size = CD186x_NFIFO;
unlock_kernel();
@@ -2199,17 +2199,17 @@ static void sx_hangup(struct tty_struct * tty)
sx_shutdown_port(bp, port);
spin_lock_irqsave(&port->lock, flags);
- bp->count -= port->count;
+ bp->count -= port->port.count;
if (bp->count < 0) {
printk(KERN_ERR "sx%d: sx_hangup: bad board count: %d port: %d\n",
board_No(bp), bp->count, tty->index);
bp->count = 0;
}
- port->count = 0;
- port->flags &= ~ASYNC_NORMAL_ACTIVE;
- port->tty = NULL;
+ port->port.count = 0;
+ port->port.flags &= ~ASYNC_NORMAL_ACTIVE;
+ port->port.tty = NULL;
spin_unlock_irqrestore(&port->lock, flags);
- wake_up_interruptible(&port->open_wait);
+ wake_up_interruptible(&port->port.open_wait);
func_exit();
}
@@ -2224,10 +2224,6 @@ static void sx_set_termios(struct tty_struct * tty, struct ktermios * old_termio
if (sx_paranoia_check(port, tty->name, "sx_set_termios"))
return;
- if (tty->termios->c_cflag == old_termios->c_cflag &&
- tty->termios->c_iflag == old_termios->c_iflag)
- return;
-
bp = port_Board(port);
spin_lock_irqsave(&port->lock, flags);
sx_change_speed(port_Board(port), port);
@@ -2297,10 +2293,7 @@ static int sx_init_drivers(void)
memset(sx_port, 0, sizeof(sx_port));
for (i = 0; i < SX_NPORT * SX_NBOARD; i++) {
sx_port[i].magic = SPECIALIX_MAGIC;
- sx_port[i].close_delay = 50 * HZ/100;
- sx_port[i].closing_wait = 3000 * HZ/100;
- init_waitqueue_head(&sx_port[i].open_wait);
- init_waitqueue_head(&sx_port[i].close_wait);
+ tty_port_init(&sx_port[i].port);
spin_lock_init(&sx_port[i].lock);
}
diff --git a/drivers/char/specialix_io8.h b/drivers/char/specialix_io8.h
index 3f2f85b..c630052 100644
--- a/drivers/char/specialix_io8.h
+++ b/drivers/char/specialix_io8.h
@@ -107,23 +107,17 @@ struct specialix_board {
struct specialix_port {
int magic;
+ struct tty_port port;
int baud_base;
int flags;
- struct tty_struct * tty;
- int count;
- int blocked_open;
int timeout;
- int close_delay;
unsigned char * xmit_buf;
int custom_divisor;
int xmit_head;
int xmit_tail;
int xmit_cnt;
- wait_queue_head_t open_wait;
- wait_queue_head_t close_wait;
short wakeup_chars;
short break_length;
- unsigned short closing_wait;
unsigned char mark_mask;
unsigned char IER;
unsigned char MSVR;
diff --git a/drivers/char/sx.c b/drivers/char/sx.c
index b1239ee..d5cffcd 100644
--- a/drivers/char/sx.c
+++ b/drivers/char/sx.c
@@ -2395,6 +2395,7 @@ static int sx_init_portstructs(int nboards, int nports)
board->ports = port;
for (j = 0; j < boards[i].nports; j++) {
sx_dprintk(SX_DEBUG_INIT, "initing port %d\n", j);
+ tty_port_init(&port->gs.port);
port->gs.magic = SX_MAGIC;
port->gs.close_delay = HZ / 2;
port->gs.closing_wait = 30 * HZ;
@@ -2407,7 +2408,6 @@ static int sx_init_portstructs(int nboards, int nports)
/*
* Initializing wait queue
*/
- tty_port_init(&port->gs.port);
port++;
}
}
diff --git a/drivers/char/synclink.c b/drivers/char/synclink.c
index 0678f61..4625f66 100644
--- a/drivers/char/synclink.c
+++ b/drivers/char/synclink.c
@@ -183,8 +183,6 @@ struct mgsl_struct {
struct tty_port port;
int line;
int hw_version;
- unsigned short close_delay;
- unsigned short closing_wait; /* time to wait before closing */
struct mgsl_icount icount;
@@ -3142,11 +3140,11 @@ static void mgsl_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) {
if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):mgsl_close(%s) calling tty_wait_until_sent\n",
__FILE__,__LINE__, info->device_name );
- tty_wait_until_sent(tty, info->closing_wait);
+ tty_wait_until_sent(tty, info->port.closing_wait);
}
if (info->port.flags & ASYNC_INITIALIZED)
@@ -3162,8 +3160,8 @@ static void mgsl_close(struct tty_struct *tty, struct file * filp)
info->port.tty = NULL;
if (info->port.blocked_open) {
- if (info->close_delay) {
- msleep_interruptible(jiffies_to_msecs(info->close_delay));
+ if (info->port.close_delay) {
+ msleep_interruptible(jiffies_to_msecs(info->port.close_delay));
}
wake_up_interruptible(&info->port.open_wait);
}
@@ -4326,12 +4324,12 @@ static struct mgsl_struct* mgsl_allocate_device(void)
if (!info) {
printk("Error can't allocate device instance data\n");
} else {
+ tty_port_init(&info->port);
info->magic = MGSL_MAGIC;
INIT_WORK(&info->task, mgsl_bh_handler);
info->max_frame_size = 4096;
- info->close_delay = 5*HZ/10;
- info->closing_wait = 30*HZ;
- tty_port_init(&info->port);
+ 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->irq_spinlock);
diff --git a/drivers/char/synclink_gt.c b/drivers/char/synclink_gt.c
index 220eb04..61594dd 100644
--- a/drivers/char/synclink_gt.c
+++ b/drivers/char/synclink_gt.c
@@ -261,8 +261,6 @@ struct slgt_info {
struct slgt_info *port_array[SLGT_MAX_PORTS];
int line; /* tty line instance number */
- unsigned short close_delay;
- unsigned short closing_wait; /* time to wait before closing */
struct mgsl_icount icount;
@@ -758,9 +756,9 @@ 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->port.flags & ASYNC_INITIALIZED)
@@ -774,8 +772,8 @@ static void close(struct tty_struct *tty, struct file *filp)
info->port.tty = NULL;
if (info->port.blocked_open) {
- if (info->close_delay) {
- msleep_interruptible(jiffies_to_msecs(info->close_delay));
+ if (info->port.close_delay) {
+ msleep_interruptible(jiffies_to_msecs(info->port.close_delay));
}
wake_up_interruptible(&info->port.open_wait);
}
@@ -3448,13 +3446,13 @@ 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;
- tty_port_init(&info->port);
+ 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);
diff --git a/drivers/char/synclinkmp.c b/drivers/char/synclinkmp.c
index 5952925..16fd2e6 100644
--- a/drivers/char/synclinkmp.c
+++ b/drivers/char/synclinkmp.c
@@ -846,11 +846,11 @@ 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) {
if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):%s close() calling tty_wait_until_sent\n",
__FILE__,__LINE__, info->device_name );
- tty_wait_until_sent(tty, info->closing_wait);
+ tty_wait_until_sent(tty, info->port.closing_wait);
}
if (info->port.flags & ASYNC_INITIALIZED)
@@ -866,8 +866,8 @@ static void close(struct tty_struct *tty, struct file *filp)
info->port.tty = NULL;
if (info->port.blocked_open) {
- if (info->close_delay) {
- msleep_interruptible(jiffies_to_msecs(info->close_delay));
+ if (info->port.close_delay) {
+ msleep_interruptible(jiffies_to_msecs(info->port.close_delay));
}
wake_up_interruptible(&info->port.open_wait);
}
@@ -3802,12 +3802,12 @@ static SLMP_INFO *alloc_dev(int adapter_num, int port_num, struct pci_dev *pdev)
printk("%s(%d) Error can't allocate device instance data for adapter %d, port %d\n",
__FILE__,__LINE__, 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->close_delay = 5*HZ/10;
- info->closing_wait = 30*HZ;
- tty_port_init(&info->port);
+ 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);
diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c
index 31ab8f0..401d5b2 100644
--- a/drivers/char/tty_io.c
+++ b/drivers/char/tty_io.c
@@ -2010,6 +2010,8 @@ void tty_port_init(struct tty_port *port)
init_waitqueue_head(&port->open_wait);
init_waitqueue_head(&port->close_wait);
mutex_init(&port->mutex);
+ port->close_delay = (50 * HZ) / 100;
+ port->closing_wait = (3000 * HZ) / 100;
}
EXPORT_SYMBOL(tty_port_init);
diff --git a/include/linux/cyclades.h b/include/linux/cyclades.h
index a982b74..2d3d1e0 100644
--- a/include/linux/cyclades.h
+++ b/include/linux/cyclades.h
@@ -567,8 +567,6 @@ struct cyclades_port {
int chip_rev;
int custom_divisor;
u8 x_char; /* to be pushed out ASAP */
- int close_delay;
- unsigned short closing_wait;
int breakon;
int breakoff;
int xmit_head;
@@ -586,8 +584,8 @@ struct cyclades_port {
};
#define CLOSING_WAIT_DELAY 30*HZ
-#define CY_CLOSING_WAIT_NONE 65535
-#define CY_CLOSING_WAIT_INF 0
+#define CY_CLOSING_WAIT_NONE ASYNC_CLOSING_WAIT_NONE
+#define CY_CLOSING_WAIT_INF ASYNC_CLOSING_WAIT_INF
#define CyMAX_CHIPS_PER_CARD 8
diff --git a/include/linux/tty.h b/include/linux/tty.h
index a5dc3e9..a74b873 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -188,6 +188,8 @@ struct tty_port
unsigned long flags; /* TTY flags ASY_*/
struct mutex mutex; /* Locking */
unsigned char *xmit_buf; /* Optional buffer */
+ int close_delay; /* Close port delay */
+ int closing_wait; /* Delay for output */
};
/*
^ permalink raw reply related [flat|nested] 32+ messages in thread* [PATCH 19/20] whiteheat: coding style
2008-05-19 14:50 [PATCH 00/20] Implment a tty port structure and supporting logic Alan Cox
` (16 preceding siblings ...)
2008-05-19 14:51 ` [PATCH 18/20] tty: add more tty_port fields Alan Cox
@ 2008-05-19 14:51 ` Alan Cox
2008-05-19 14:52 ` [PATCH 20/20] whiteheat: fix bugs found in the tidy and audit Alan Cox
` (3 subsequent siblings)
21 siblings, 0 replies; 32+ messages in thread
From: Alan Cox @ 2008-05-19 14:51 UTC (permalink / raw)
To: linux-kernel, akpm, greg
From: Alan Cox <alan@redhat.com>
Bring ezusb and whiteheat into line with the coding style
---
drivers/usb/serial/ezusb.c | 22 +-
drivers/usb/serial/whiteheat.c | 390 ++++++++++++++++++++++------------------
drivers/usb/serial/whiteheat.h | 78 +++++---
3 files changed, 280 insertions(+), 210 deletions(-)
diff --git a/drivers/usb/serial/ezusb.c b/drivers/usb/serial/ezusb.c
index cc4fbd9..711e84f 100644
--- a/drivers/usb/serial/ezusb.c
+++ b/drivers/usb/serial/ezusb.c
@@ -20,7 +20,8 @@
/* EZ-USB Control and Status Register. Bit 0 controls 8051 reset */
#define CPUCS_REG 0x7F92
-int ezusb_writememory (struct usb_serial *serial, int address, unsigned char *data, int length, __u8 bRequest)
+int ezusb_writememory(struct usb_serial *serial, int address,
+ unsigned char *data, int length, __u8 request)
{
int result;
unsigned char *transfer_buffer;
@@ -33,26 +34,27 @@ int ezusb_writememory (struct usb_serial *serial, int address, unsigned char *da
transfer_buffer = kmemdup(data, length, GFP_KERNEL);
if (!transfer_buffer) {
- dev_err(&serial->dev->dev, "%s - kmalloc(%d) failed.\n", __func__, length);
+ dev_err(&serial->dev->dev, "%s - kmalloc(%d) failed.\n",
+ __func__, length);
return -ENOMEM;
}
- result = usb_control_msg (serial->dev, usb_sndctrlpipe(serial->dev, 0), bRequest, 0x40, address, 0, transfer_buffer, length, 3000);
- kfree (transfer_buffer);
+ result = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
+ request, 0x40, address, 0, transfer_buffer, length, 3000);
+ kfree(transfer_buffer);
return result;
}
+EXPORT_SYMBOL_GPL(ezusb_writememory);
-int ezusb_set_reset (struct usb_serial *serial, unsigned char reset_bit)
+int ezusb_set_reset(struct usb_serial *serial, unsigned char reset_bit)
{
int response;
/* dbg("%s - %d", __func__, reset_bit); */
- response = ezusb_writememory (serial, CPUCS_REG, &reset_bit, 1, 0xa0);
+ response = ezusb_writememory(serial, CPUCS_REG, &reset_bit, 1, 0xa0);
if (response < 0)
- dev_err(&serial->dev->dev, "%s- %d failed\n", __func__, reset_bit);
+ dev_err(&serial->dev->dev, "%s- %d failed\n",
+ __func__, reset_bit);
return response;
}
-
-
-EXPORT_SYMBOL_GPL(ezusb_writememory);
EXPORT_SYMBOL_GPL(ezusb_set_reset);
diff --git a/drivers/usb/serial/whiteheat.c b/drivers/usb/serial/whiteheat.c
index fdadf39..957ebda 100644
--- a/drivers/usb/serial/whiteheat.c
+++ b/drivers/usb/serial/whiteheat.c
@@ -12,7 +12,8 @@
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
- * See Documentation/usb/usb-serial.txt for more information on using this driver
+ * See Documentation/usb/usb-serial.txt for more information on using this
+ * driver
*
* (10/09/2002) Stuart MacDonald (stuartm@connecttech.com)
* Upgrade to full working driver
@@ -22,19 +23,19 @@
*
* (04/08/2001) gb
* Identify version on module load.
- *
+ *
* 2001_Mar_19 gkh
- * Fixed MOD_INC and MOD_DEC logic, the ability to open a port more
+ * Fixed MOD_INC and MOD_DEC logic, the ability to open a port more
* than once, and the got the proper usb_device_id table entries so
* the driver works again.
*
* (11/01/2000) Adam J. Richter
* usb_device_id table support
- *
+ *
* (10/05/2000) gkh
* Fixed bug with urb->dev not being set properly, now that the usb
* core needs it.
- *
+ *
* (10/03/2000) smd
* firmware is improved to guard against crap sent to device
* firmware now replies CMD_FAILURE on bad things
@@ -52,9 +53,9 @@
* Fixed bug with port->minor that was found by Al Borchers
*
* (07/04/2000) gkh
- * Added support for port settings. Baud rate can now be changed. Line signals
- * are not transferred to and from the tty layer yet, but things seem to be
- * working well now.
+ * Added support for port settings. Baud rate can now be changed. Line
+ * signals are not transferred to and from the tty layer yet, but things
+ * seem to be working well now.
*
* (05/04/2000) gkh
* First cut at open and close commands. Data can flow through the ports at
@@ -135,26 +136,34 @@ static struct usb_driver whiteheat_driver = {
};
/* function prototypes for the Connect Tech WhiteHEAT prerenumeration device */
-static int whiteheat_firmware_download (struct usb_serial *serial, const struct usb_device_id *id);
-static int whiteheat_firmware_attach (struct usb_serial *serial);
+static int whiteheat_firmware_download(struct usb_serial *serial,
+ const struct usb_device_id *id);
+static int whiteheat_firmware_attach(struct usb_serial *serial);
/* function prototypes for the Connect Tech WhiteHEAT serial converter */
-static int whiteheat_attach (struct usb_serial *serial);
-static void whiteheat_shutdown (struct usb_serial *serial);
-static int whiteheat_open (struct tty_struct *tty, struct usb_serial_port *port, struct file *filp);
-static void whiteheat_close (struct tty_struct *tty, struct usb_serial_port *port, struct file *filp);
-static int whiteheat_write (struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *buf, int count);
-static int whiteheat_write_room (struct tty_struct *tty);
-static int whiteheat_ioctl (struct tty_struct *tty, struct file * file, unsigned int cmd, unsigned long arg);
-static void whiteheat_set_termios (struct tty_struct *tty, struct usb_serial_port *port, struct ktermios * old);
-static int whiteheat_tiocmget (struct tty_struct *tty, struct file *file);
-static int whiteheat_tiocmset (struct tty_struct *tty, struct file *file, unsigned int set, unsigned int clear);
-static void whiteheat_break_ctl (struct tty_struct *tty, int break_state);
-static int whiteheat_chars_in_buffer (struct tty_struct *tty);
-static void whiteheat_throttle (struct tty_struct *tty);
-static void whiteheat_unthrottle (struct tty_struct *tty);
-static void whiteheat_read_callback (struct urb *urb);
-static void whiteheat_write_callback (struct urb *urb);
+static int whiteheat_attach(struct usb_serial *serial);
+static void whiteheat_shutdown(struct usb_serial *serial);
+static int whiteheat_open(struct tty_struct *tty,
+ struct usb_serial_port *port, struct file *filp);
+static void whiteheat_close(struct tty_struct *tty,
+ struct usb_serial_port *port, struct file *filp);
+static int whiteheat_write(struct tty_struct *tty,
+ struct usb_serial_port *port,
+ const unsigned char *buf, int count);
+static int whiteheat_write_room(struct tty_struct *tty);
+static int whiteheat_ioctl(struct tty_struct *tty, struct file *file,
+ unsigned int cmd, unsigned long arg);
+static void whiteheat_set_termios(struct tty_struct *tty,
+ struct usb_serial_port *port, struct ktermios * old);
+static int whiteheat_tiocmget(struct tty_struct *tty, struct file *file);
+static int whiteheat_tiocmset(struct tty_struct *tty, struct file *file,
+ unsigned int set, unsigned int clear);
+static void whiteheat_break_ctl(struct tty_struct *tty, int break_state);
+static int whiteheat_chars_in_buffer(struct tty_struct *tty);
+static void whiteheat_throttle(struct tty_struct *tty);
+static void whiteheat_unthrottle(struct tty_struct *tty);
+static void whiteheat_read_callback(struct urb *urb);
+static void whiteheat_write_callback(struct urb *urb);
static struct usb_serial_driver whiteheat_fake_device = {
.driver = {
@@ -201,7 +210,9 @@ struct whiteheat_command_private {
struct mutex mutex;
__u8 port_running;
__u8 command_finished;
- wait_queue_head_t wait_command; /* for handling sleeping while waiting for a command to finish */
+ wait_queue_head_t wait_command; /* for handling sleeping whilst
+ waiting for a command to
+ finish */
__u8 result_buffer[64];
};
@@ -238,11 +249,13 @@ static void command_port_write_callback(struct urb *urb);
static void command_port_read_callback(struct urb *urb);
static int start_port_read(struct usb_serial_port *port);
-static struct whiteheat_urb_wrap *urb_to_wrap(struct urb *urb, struct list_head *head);
+static struct whiteheat_urb_wrap *urb_to_wrap(struct urb *urb,
+ struct list_head *head);
static struct list_head *list_first(struct list_head *head);
static void rx_data_softint(struct work_struct *work);
-static int firm_send_command(struct usb_serial_port *port, __u8 command, __u8 *data, __u8 datasize);
+static int firm_send_command(struct usb_serial_port *port, __u8 command,
+ __u8 *data, __u8 datasize);
static int firm_open(struct usb_serial_port *port);
static int firm_close(struct usb_serial_port *port);
static int firm_setup_port(struct tty_struct *tty);
@@ -277,22 +290,25 @@ static int firm_report_tx_done(struct usb_serial_port *port);
- device renumerated itself and comes up as new device id with all
firmware download completed.
*/
-static int whiteheat_firmware_download (struct usb_serial *serial, const struct usb_device_id *id)
+static int whiteheat_firmware_download(struct usb_serial *serial,
+ const struct usb_device_id *id)
{
int response;
const struct whiteheat_hex_record *record;
-
+
dbg("%s", __func__);
-
- response = ezusb_set_reset (serial, 1);
+
+ response = ezusb_set_reset(serial, 1);
record = &whiteheat_loader[0];
while (record->address != 0xffff) {
response = ezusb_writememory (serial, record->address,
- (unsigned char *)record->data, record->data_size, 0xa0);
+ (unsigned char *)record->data,
+ record->data_size, 0xa0);
if (response < 0) {
err("%s - ezusb_writememory failed for loader (%d %04X %p %d)",
- __func__, response, record->address, record->data, record->data_size);
+ __func__, response, record->address,
+ record->data, record->data_size);
break;
}
++record;
@@ -301,41 +317,40 @@ static int whiteheat_firmware_download (struct usb_serial *serial, const struct
response = ezusb_set_reset (serial, 0);
record = &whiteheat_firmware[0];
- while (record->address < 0x1b40) {
+ while (record->address < 0x1b40)
++record;
- }
while (record->address != 0xffff) {
- response = ezusb_writememory (serial, record->address,
- (unsigned char *)record->data, record->data_size, 0xa3);
+ response = ezusb_writememory (serial, record->address,
+ (unsigned char *)record->data, record->data_size, 0xa3);
if (response < 0) {
err("%s - ezusb_writememory failed for first firmware step (%d %04X %p %d)",
- __func__, response, record->address, record->data, record->data_size);
+ __func__, response, record->address,
+ record->data, record->data_size);
break;
}
++record;
}
-
- response = ezusb_set_reset (serial, 1);
+
+ response = ezusb_set_reset(serial, 1);
record = &whiteheat_firmware[0];
while (record->address < 0x1b40) {
response = ezusb_writememory (serial, record->address,
- (unsigned char *)record->data, record->data_size, 0xa0);
+ (unsigned char *)record->data, record->data_size, 0xa0);
if (response < 0) {
err("%s - ezusb_writememory failed for second firmware step (%d %04X %p %d)",
- __func__, response, record->address, record->data, record->data_size);
+ __func__, response, record->address,
+ record->data, record->data_size);
break;
}
++record;
}
-
- response = ezusb_set_reset (serial, 0);
-
+ ezusb_set_reset(serial, 0);
return 0;
}
-static int whiteheat_firmware_attach (struct usb_serial *serial)
+static int whiteheat_firmware_attach(struct usb_serial *serial)
{
/* We want this device to fail to have a driver assigned to it */
return 1;
@@ -345,7 +360,7 @@ static int whiteheat_firmware_attach (struct usb_serial *serial)
/*****************************************************************************
* Connect Tech's White Heat serial driver functions
*****************************************************************************/
-static int whiteheat_attach (struct usb_serial *serial)
+static int whiteheat_attach(struct usb_serial *serial)
{
struct usb_serial_port *command_port;
struct whiteheat_command_private *command_info;
@@ -366,43 +381,52 @@ static int whiteheat_attach (struct usb_serial *serial)
command_port = serial->port[COMMAND_PORT];
- pipe = usb_sndbulkpipe (serial->dev, command_port->bulk_out_endpointAddress);
+ pipe = usb_sndbulkpipe (serial->dev,
+ command_port->bulk_out_endpointAddress);
command = kmalloc(2, GFP_KERNEL);
if (!command)
goto no_command_buffer;
command[0] = WHITEHEAT_GET_HW_INFO;
command[1] = 0;
-
+
result = kmalloc(sizeof(*hw_info) + 1, GFP_KERNEL);
if (!result)
goto no_result_buffer;
/*
* When the module is reloaded the firmware is still there and
* the endpoints are still in the usb core unchanged. This is the
- * unlinking bug in disguise. Same for the call below.
- */
+ * unlinking bug in disguise. Same for the call below.
+ */
usb_clear_halt(serial->dev, pipe);
- ret = usb_bulk_msg (serial->dev, pipe, command, 2, &alen, COMMAND_TIMEOUT_MS);
+ ret = usb_bulk_msg (serial->dev, pipe, command, 2,
+ &alen, COMMAND_TIMEOUT_MS);
if (ret) {
- err("%s: Couldn't send command [%d]", serial->type->description, ret);
+ err("%s: Couldn't send command [%d]",
+ serial->type->description, ret);
goto no_firmware;
} else if (alen != 2) {
- err("%s: Send command incomplete [%d]", serial->type->description, alen);
+ err("%s: Send command incomplete [%d]",
+ serial->type->description, alen);
goto no_firmware;
}
- pipe = usb_rcvbulkpipe (serial->dev, command_port->bulk_in_endpointAddress);
+ pipe = usb_rcvbulkpipe(serial->dev,
+ command_port->bulk_in_endpointAddress);
/* See the comment on the usb_clear_halt() above */
usb_clear_halt(serial->dev, pipe);
- ret = usb_bulk_msg (serial->dev, pipe, result, sizeof(*hw_info) + 1, &alen, COMMAND_TIMEOUT_MS);
+ ret = usb_bulk_msg(serial->dev, pipe, result,
+ sizeof(*hw_info) + 1, &alen, COMMAND_TIMEOUT_MS);
if (ret) {
- err("%s: Couldn't get results [%d]", serial->type->description, ret);
+ err("%s: Couldn't get results [%d]",
+ serial->type->description, ret);
goto no_firmware;
} else if (alen != sizeof(*hw_info) + 1) {
- err("%s: Get results incomplete [%d]", serial->type->description, alen);
+ err("%s: Get results incomplete [%d]",
+ serial->type->description, alen);
goto no_firmware;
} else if (result[0] != command[0]) {
- err("%s: Command failed [%d]", serial->type->description, result[0]);
+ err("%s: Command failed [%d]",
+ serial->type->description, result[0]);
goto no_firmware;
}
@@ -416,7 +440,8 @@ static int whiteheat_attach (struct usb_serial *serial)
info = kmalloc(sizeof(struct whiteheat_private), GFP_KERNEL);
if (info == NULL) {
- err("%s: Out of memory for port structures\n", serial->type->description);
+ err("%s: Out of memory for port structures\n",
+ serial->type->description);
goto no_private;
}
@@ -486,9 +511,11 @@ static int whiteheat_attach (struct usb_serial *serial)
usb_set_serial_port_data(port, info);
}
- command_info = kmalloc(sizeof(struct whiteheat_command_private), GFP_KERNEL);
+ command_info = kmalloc(sizeof(struct whiteheat_command_private),
+ GFP_KERNEL);
if (command_info == NULL) {
- err("%s: Out of memory for port structures\n", serial->type->description);
+ err("%s: Out of memory for port structures\n",
+ serial->type->description);
goto no_command_private;
}
@@ -505,9 +532,12 @@ static int whiteheat_attach (struct usb_serial *serial)
no_firmware:
/* Firmware likely not running */
- err("%s: Unable to retrieve firmware version, try replugging\n", serial->type->description);
- err("%s: If the firmware is not running (status led not blinking)\n", serial->type->description);
- err("%s: please contact support@connecttech.com\n", serial->type->description);
+ err("%s: Unable to retrieve firmware version, try replugging\n",
+ serial->type->description);
+ err("%s: If the firmware is not running (status led not blinking)\n",
+ serial->type->description);
+ err("%s: please contact support@connecttech.com\n",
+ serial->type->description);
kfree(result);
return -ENODEV;
@@ -550,7 +580,7 @@ no_command_buffer:
}
-static void whiteheat_shutdown (struct usb_serial *serial)
+static void whiteheat_shutdown(struct usb_serial *serial)
{
struct usb_serial_port *command_port;
struct usb_serial_port *port;
@@ -592,8 +622,7 @@ static void whiteheat_shutdown (struct usb_serial *serial)
return;
}
-
-static int whiteheat_open (struct tty_struct *tty,
+static int whiteheat_open(struct tty_struct *tty,
struct usb_serial_port *port, struct file *filp)
{
int retval = 0;
@@ -635,7 +664,8 @@ static int whiteheat_open (struct tty_struct *tty,
/* Start reading from the device */
retval = start_port_read(port);
if (retval) {
- err("%s - failed submitting read urb, error %d", __func__, retval);
+ err("%s - failed submitting read urb, error %d",
+ __func__, retval);
firm_close(port);
stop_command_port(port->serial);
goto exit;
@@ -648,7 +678,7 @@ exit:
static void whiteheat_close(struct tty_struct *tty,
- struct usb_serial_port *port, struct file * filp)
+ struct usb_serial_port *port, struct file *filp)
{
struct whiteheat_private *info = usb_get_serial_port_data(port);
struct whiteheat_urb_wrap *wrap;
@@ -749,16 +779,19 @@ static int whiteheat_write(struct tty_struct *tty,
wrap = list_entry(tmp, struct whiteheat_urb_wrap, list);
urb = wrap->urb;
- bytes = (count > port->bulk_out_size) ? port->bulk_out_size : count;
- memcpy (urb->transfer_buffer, buf + sent, bytes);
+ bytes = (count > port->bulk_out_size) ?
+ port->bulk_out_size : count;
+ memcpy(urb->transfer_buffer, buf + sent, bytes);
- usb_serial_debug_data(debug, &port->dev, __func__, bytes, urb->transfer_buffer);
+ usb_serial_debug_data(debug, &port->dev,
+ __func__, bytes, urb->transfer_buffer);
urb->dev = serial->dev;
urb->transfer_buffer_length = bytes;
result = usb_submit_urb(urb, GFP_ATOMIC);
if (result) {
- err("%s - failed submitting write urb, error %d", __func__, result);
+ err("%s - failed submitting write urb, error %d",
+ __func__, result);
sent = result;
spin_lock_irqsave(&info->lock, flags);
list_add(tmp, &info->tx_urbs_free);
@@ -776,7 +809,6 @@ static int whiteheat_write(struct tty_struct *tty,
return sent;
}
-
static int whiteheat_write_room(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
@@ -797,8 +829,7 @@ static int whiteheat_write_room(struct tty_struct *tty)
return (room);
}
-
-static int whiteheat_tiocmget (struct tty_struct *tty, struct file *file)
+static int whiteheat_tiocmget(struct tty_struct *tty, struct file *file)
{
struct usb_serial_port *port = tty->driver_data;
struct whiteheat_private *info = usb_get_serial_port_data(port);
@@ -815,8 +846,7 @@ static int whiteheat_tiocmget (struct tty_struct *tty, struct file *file)
return modem_signals;
}
-
-static int whiteheat_tiocmset (struct tty_struct *tty, struct file *file,
+static int whiteheat_tiocmset(struct tty_struct *tty, struct file *file,
unsigned int set, unsigned int clear)
{
struct usb_serial_port *port = tty->driver_data;
@@ -840,7 +870,7 @@ static int whiteheat_tiocmset (struct tty_struct *tty, struct file *file,
}
-static int whiteheat_ioctl (struct tty_struct *tty, struct file * file, unsigned int cmd, unsigned long arg)
+static int whiteheat_ioctl(struct tty_struct *tty, struct file * file, unsigned int cmd, unsigned long arg)
{
struct usb_serial_port *port = tty->driver_data;
struct serial_struct serstruct;
@@ -849,49 +879,36 @@ static int whiteheat_ioctl (struct tty_struct *tty, struct file * file, unsigned
dbg("%s - port %d, cmd 0x%.4x", __func__, port->number, cmd);
switch (cmd) {
- case TIOCGSERIAL:
- memset(&serstruct, 0, sizeof(serstruct));
- serstruct.type = PORT_16654;
- serstruct.line = port->serial->minor;
- serstruct.port = port->number;
- serstruct.flags = ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ;
- serstruct.xmit_fifo_size = port->bulk_out_size;
- serstruct.custom_divisor = 0;
- serstruct.baud_base = 460800;
- serstruct.close_delay = CLOSING_DELAY;
- serstruct.closing_wait = CLOSING_DELAY;
-
- if (copy_to_user(user_arg, &serstruct, sizeof(serstruct)))
- return -EFAULT;
-
- break;
-
- case TIOCSSERIAL:
- if (copy_from_user(&serstruct, user_arg, sizeof(serstruct)))
- return -EFAULT;
-
- /*
- * For now this is ignored. dip sets the ASYNC_[V]HI flags
- * but this isn't used by us at all. Maybe someone somewhere
- * will need the custom_divisor setting.
- */
-
- break;
-
- default:
- break;
+ case TIOCGSERIAL:
+ memset(&serstruct, 0, sizeof(serstruct));
+ serstruct.type = PORT_16654;
+ serstruct.line = port->serial->minor;
+ serstruct.port = port->number;
+ serstruct.flags = ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ;
+ serstruct.xmit_fifo_size = port->bulk_out_size;
+ serstruct.custom_divisor = 0;
+ serstruct.baud_base = 460800;
+ serstruct.close_delay = CLOSING_DELAY;
+ serstruct.closing_wait = CLOSING_DELAY;
+
+ if (copy_to_user(user_arg, &serstruct, sizeof(serstruct)))
+ return -EFAULT;
+ break;
+ default:
+ break;
}
return -ENOIOCTLCMD;
}
-static void whiteheat_set_termios(struct tty_struct *tty, struct usb_serial_port *port, struct ktermios *old_termios)
+static void whiteheat_set_termios(struct tty_struct *tty,
+ struct usb_serial_port *port, struct ktermios *old_termios)
{
+ /* FIXME */
firm_setup_port(tty);
}
-
static void whiteheat_break_ctl(struct tty_struct *tty, int break_state) {
struct usb_serial_port *port = tty->driver_data;
firm_set_break(port, break_state);
@@ -916,12 +933,12 @@ static int whiteheat_chars_in_buffer(struct tty_struct *tty)
}
spin_unlock_irqrestore(&info->lock, flags);
- dbg ("%s - returns %d", __func__, chars);
+ dbg("%s - returns %d", __func__, chars);
return chars;
}
-static void whiteheat_throttle (struct tty_struct *tty)
+static void whiteheat_throttle(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
struct whiteheat_private *info = usb_get_serial_port_data(port);
@@ -937,7 +954,7 @@ static void whiteheat_throttle (struct tty_struct *tty)
}
-static void whiteheat_unthrottle (struct tty_struct *tty)
+static void whiteheat_unthrottle(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
struct whiteheat_private *info = usb_get_serial_port_data(port);
@@ -986,7 +1003,7 @@ static void command_port_read_callback(struct urb *urb)
command_info = usb_get_serial_port_data(command_port);
if (!command_info) {
- dbg ("%s - command_info is NULL, exiting.", __func__);
+ dbg("%s - command_info is NULL, exiting.", __func__);
return;
}
if (status) {
@@ -997,7 +1014,8 @@ static void command_port_read_callback(struct urb *urb)
return;
}
- usb_serial_debug_data(debug, &command_port->dev, __func__, urb->actual_length, data);
+ usb_serial_debug_data(debug, &command_port->dev,
+ __func__, urb->actual_length, data);
if (data[0] == WHITEHEAT_CMD_COMPLETE) {
command_info->command_finished = WHITEHEAT_CMD_COMPLETE;
@@ -1006,21 +1024,23 @@ static void command_port_read_callback(struct urb *urb)
command_info->command_finished = WHITEHEAT_CMD_FAILURE;
wake_up(&command_info->wait_command);
} else if (data[0] == WHITEHEAT_EVENT) {
- /* These are unsolicited reports from the firmware, hence no waiting command to wakeup */
+ /* These are unsolicited reports from the firmware, hence no
+ waiting command to wakeup */
dbg("%s - event received", __func__);
} else if (data[0] == WHITEHEAT_GET_DTR_RTS) {
- memcpy(command_info->result_buffer, &data[1], urb->actual_length - 1);
+ memcpy(command_info->result_buffer, &data[1],
+ urb->actual_length - 1);
command_info->command_finished = WHITEHEAT_CMD_COMPLETE;
wake_up(&command_info->wait_command);
- } else {
+ } else
dbg("%s - bad reply from firmware", __func__);
- }
-
+
/* Continue trying to always read */
command_port->read_urb->dev = command_port->serial->dev;
result = usb_submit_urb(command_port->read_urb, GFP_ATOMIC);
if (result)
- dbg("%s - failed resubmitting read urb, error %d", __func__, result);
+ dbg("%s - failed resubmitting read urb, error %d",
+ __func__, result);
}
@@ -1053,7 +1073,8 @@ static void whiteheat_read_callback(struct urb *urb)
return;
}
- usb_serial_debug_data(debug, &port->dev, __func__, urb->actual_length, data);
+ usb_serial_debug_data(debug, &port->dev,
+ __func__, urb->actual_length, data);
spin_lock(&info->lock);
list_add_tail(&wrap->list, &info->rx_urb_q);
@@ -1100,7 +1121,8 @@ static void whiteheat_write_callback(struct urb *urb)
/*****************************************************************************
* Connect Tech's White Heat firmware interface
*****************************************************************************/
-static int firm_send_command(struct usb_serial_port *port, __u8 command, __u8 *data, __u8 datasize)
+static int firm_send_command(struct usb_serial_port *port, __u8 command,
+ __u8 *data, __u8 datasize)
{
struct usb_serial_port *command_port;
struct whiteheat_command_private *command_info;
@@ -1115,10 +1137,10 @@ static int firm_send_command(struct usb_serial_port *port, __u8 command, __u8 *d
command_info = usb_get_serial_port_data(command_port);
mutex_lock(&command_info->mutex);
command_info->command_finished = false;
-
+
transfer_buffer = (__u8 *)command_port->write_urb->transfer_buffer;
transfer_buffer[0] = command;
- memcpy (&transfer_buffer[1], data, datasize);
+ memcpy(&transfer_buffer[1], data, datasize);
command_port->write_urb->transfer_buffer_length = datasize + 1;
command_port->write_urb->dev = port->serial->dev;
retval = usb_submit_urb (command_port->write_urb, GFP_NOIO);
@@ -1148,24 +1170,26 @@ static int firm_send_command(struct usb_serial_port *port, __u8 command, __u8 *d
if (command_info->command_finished == WHITEHEAT_CMD_COMPLETE) {
dbg("%s - command completed.", __func__);
switch (command) {
- case WHITEHEAT_GET_DTR_RTS:
- info = usb_get_serial_port_data(port);
- memcpy(&info->mcr, command_info->result_buffer, sizeof(struct whiteheat_dr_info));
+ case WHITEHEAT_GET_DTR_RTS:
+ info = usb_get_serial_port_data(port);
+ memcpy(&info->mcr, command_info->result_buffer,
+ sizeof(struct whiteheat_dr_info));
break;
}
}
-
exit:
mutex_unlock(&command_info->mutex);
return retval;
}
-static int firm_open(struct usb_serial_port *port) {
+static int firm_open(struct usb_serial_port *port)
+{
struct whiteheat_simple open_command;
open_command.port = port->number - port->serial->minor + 1;
- return firm_send_command(port, WHITEHEAT_OPEN, (__u8 *)&open_command, sizeof(open_command));
+ return firm_send_command(port, WHITEHEAT_OPEN,
+ (__u8 *)&open_command, sizeof(open_command));
}
@@ -1173,11 +1197,13 @@ static int firm_close(struct usb_serial_port *port) {
struct whiteheat_simple close_command;
close_command.port = port->number - port->serial->minor + 1;
- return firm_send_command(port, WHITEHEAT_CLOSE, (__u8 *)&close_command, sizeof(close_command));
+ return firm_send_command(port, WHITEHEAT_CLOSE,
+ (__u8 *)&close_command, sizeof(close_command));
}
-static int firm_setup_port(struct tty_struct *tty) {
+static int firm_setup_port(struct tty_struct *tty)
+{
struct usb_serial_port *port = tty->driver_data;
struct whiteheat_port_settings port_settings;
unsigned int cflag = tty->termios->c_cflag;
@@ -1186,14 +1212,14 @@ static int firm_setup_port(struct tty_struct *tty) {
/* get the byte size */
switch (cflag & CSIZE) {
- case CS5: port_settings.bits = 5; break;
- case CS6: port_settings.bits = 6; break;
- case CS7: port_settings.bits = 7; break;
- default:
- case CS8: port_settings.bits = 8; break;
+ case CS5: port_settings.bits = 5; break;
+ case CS6: port_settings.bits = 6; break;
+ case CS7: port_settings.bits = 7; break;
+ default:
+ case CS8: port_settings.bits = 8; break;
}
dbg("%s - data bits = %d", __func__, port_settings.bits);
-
+
/* determine the parity */
if (cflag & PARENB)
if (cflag & CMSPAR)
@@ -1219,7 +1245,8 @@ static int firm_setup_port(struct tty_struct *tty) {
/* figure out the flow control settings */
if (cflag & CRTSCTS)
- port_settings.hflow = (WHITEHEAT_HFLOW_CTS | WHITEHEAT_HFLOW_RTS);
+ port_settings.hflow = (WHITEHEAT_HFLOW_CTS |
+ WHITEHEAT_HFLOW_RTS);
else
port_settings.hflow = WHITEHEAT_HFLOW_NONE;
dbg("%s - hardware flow control = %s %s %s %s", __func__,
@@ -1227,17 +1254,18 @@ static int firm_setup_port(struct tty_struct *tty) {
(port_settings.hflow & WHITEHEAT_HFLOW_RTS) ? "RTS" : "",
(port_settings.hflow & WHITEHEAT_HFLOW_DSR) ? "DSR" : "",
(port_settings.hflow & WHITEHEAT_HFLOW_DTR) ? "DTR" : "");
-
+
/* determine software flow control */
if (I_IXOFF(tty))
port_settings.sflow = WHITEHEAT_SFLOW_RXTX;
else
port_settings.sflow = WHITEHEAT_SFLOW_NONE;
dbg("%s - software flow control = %c", __func__, port_settings.sflow);
-
+
port_settings.xon = START_CHAR(tty);
port_settings.xoff = STOP_CHAR(tty);
- dbg("%s - XON = %2x, XOFF = %2x", __func__, port_settings.xon, port_settings.xoff);
+ dbg("%s - XON = %2x, XOFF = %2x",
+ __func__, port_settings.xon, port_settings.xoff);
/* get the baud rate wanted */
port_settings.baud = tty_get_baud_rate(tty);
@@ -1247,61 +1275,73 @@ static int firm_setup_port(struct tty_struct *tty) {
tty_encode_baud_rate(tty, port_settings.baud, port_settings.baud);
/* handle any settings that aren't specified in the tty structure */
port_settings.lloop = 0;
-
+
/* now send the message to the device */
return firm_send_command(port, WHITEHEAT_SETUP_PORT, (__u8 *)&port_settings, sizeof(port_settings));
}
-static int firm_set_rts(struct usb_serial_port *port, __u8 onoff) {
+static int firm_set_rts(struct usb_serial_port *port, __u8 onoff)
+{
struct whiteheat_set_rdb rts_command;
rts_command.port = port->number - port->serial->minor + 1;
rts_command.state = onoff;
- return firm_send_command(port, WHITEHEAT_SET_RTS, (__u8 *)&rts_command, sizeof(rts_command));
+ return firm_send_command(port, WHITEHEAT_SET_RTS,
+ (__u8 *)&rts_command, sizeof(rts_command));
}
-static int firm_set_dtr(struct usb_serial_port *port, __u8 onoff) {
+static int firm_set_dtr(struct usb_serial_port *port, __u8 onoff)
+{
struct whiteheat_set_rdb dtr_command;
dtr_command.port = port->number - port->serial->minor + 1;
dtr_command.state = onoff;
- return firm_send_command(port, WHITEHEAT_SET_RTS, (__u8 *)&dtr_command, sizeof(dtr_command));
+ return firm_send_command(port, WHITEHEAT_SET_RTS,
+ (__u8 *)&dtr_command, sizeof(dtr_command));
}
-static int firm_set_break(struct usb_serial_port *port, __u8 onoff) {
+static int firm_set_break(struct usb_serial_port *port, __u8 onoff)
+{
struct whiteheat_set_rdb break_command;
break_command.port = port->number - port->serial->minor + 1;
break_command.state = onoff;
- return firm_send_command(port, WHITEHEAT_SET_RTS, (__u8 *)&break_command, sizeof(break_command));
+ return firm_send_command(port, WHITEHEAT_SET_RTS,
+ (__u8 *)&break_command, sizeof(break_command));
}
-static int firm_purge(struct usb_serial_port *port, __u8 rxtx) {
+static int firm_purge(struct usb_serial_port *port, __u8 rxtx)
+{
struct whiteheat_purge purge_command;
purge_command.port = port->number - port->serial->minor + 1;
purge_command.what = rxtx;
- return firm_send_command(port, WHITEHEAT_PURGE, (__u8 *)&purge_command, sizeof(purge_command));
+ return firm_send_command(port, WHITEHEAT_PURGE,
+ (__u8 *)&purge_command, sizeof(purge_command));
}
-static int firm_get_dtr_rts(struct usb_serial_port *port) {
+static int firm_get_dtr_rts(struct usb_serial_port *port)
+{
struct whiteheat_simple get_dr_command;
get_dr_command.port = port->number - port->serial->minor + 1;
- return firm_send_command(port, WHITEHEAT_GET_DTR_RTS, (__u8 *)&get_dr_command, sizeof(get_dr_command));
+ return firm_send_command(port, WHITEHEAT_GET_DTR_RTS,
+ (__u8 *)&get_dr_command, sizeof(get_dr_command));
}
-static int firm_report_tx_done(struct usb_serial_port *port) {
+static int firm_report_tx_done(struct usb_serial_port *port)
+{
struct whiteheat_simple close_command;
close_command.port = port->number - port->serial->minor + 1;
- return firm_send_command(port, WHITEHEAT_REPORT_TX_DONE, (__u8 *)&close_command, sizeof(close_command));
+ return firm_send_command(port, WHITEHEAT_REPORT_TX_DONE,
+ (__u8 *)&close_command, sizeof(close_command));
}
@@ -1313,7 +1353,7 @@ static int start_command_port(struct usb_serial *serial)
struct usb_serial_port *command_port;
struct whiteheat_command_private *command_info;
int retval = 0;
-
+
command_port = serial->port[COMMAND_PORT];
command_info = usb_get_serial_port_data(command_port);
mutex_lock(&command_info->mutex);
@@ -1324,7 +1364,8 @@ static int start_command_port(struct usb_serial *serial)
command_port->read_urb->dev = serial->dev;
retval = usb_submit_urb(command_port->read_urb, GFP_KERNEL);
if (retval) {
- err("%s - failed submitting read urb, error %d", __func__, retval);
+ err("%s - failed submitting read urb, error %d",
+ __func__, retval);
goto exit;
}
}
@@ -1394,7 +1435,8 @@ static int start_port_read(struct usb_serial_port *port)
}
-static struct whiteheat_urb_wrap *urb_to_wrap(struct urb* urb, struct list_head *head)
+static struct whiteheat_urb_wrap *urb_to_wrap(struct urb *urb,
+ struct list_head *head)
{
struct whiteheat_urb_wrap *wrap;
struct list_head *tmp;
@@ -1443,7 +1485,8 @@ static void rx_data_softint(struct work_struct *work)
urb = wrap->urb;
if (tty && urb->actual_length) {
- int len = tty_buffer_request_room(tty, urb->actual_length);
+ int len = tty_buffer_request_room(tty,
+ urb->actual_length);
/* This stuff can go away now I suspect */
if (unlikely(len < urb->actual_length)) {
spin_lock_irqsave(&info->lock, flags);
@@ -1460,7 +1503,8 @@ static void rx_data_softint(struct work_struct *work)
urb->dev = port->serial->dev;
result = usb_submit_urb(urb, GFP_ATOMIC);
if (result) {
- err("%s - failed resubmitting read urb, error %d", __func__, result);
+ err("%s - failed resubmitting read urb, error %d",
+ __func__, result);
spin_lock_irqsave(&info->lock, flags);
list_add(tmp, &info->rx_urbs_free);
continue;
@@ -1479,7 +1523,7 @@ static void rx_data_softint(struct work_struct *work)
/*****************************************************************************
* Connect Tech's White Heat module functions
*****************************************************************************/
-static int __init whiteheat_init (void)
+static int __init whiteheat_init(void)
{
int retval;
retval = usb_serial_register(&whiteheat_fake_device);
@@ -1502,19 +1546,19 @@ failed_fake_register:
}
-static void __exit whiteheat_exit (void)
+static void __exit whiteheat_exit(void)
{
- usb_deregister (&whiteheat_driver);
- usb_serial_deregister (&whiteheat_fake_device);
- usb_serial_deregister (&whiteheat_device);
+ usb_deregister(&whiteheat_driver);
+ usb_serial_deregister(&whiteheat_fake_device);
+ usb_serial_deregister(&whiteheat_device);
}
module_init(whiteheat_init);
module_exit(whiteheat_exit);
-MODULE_AUTHOR( DRIVER_AUTHOR );
-MODULE_DESCRIPTION( DRIVER_DESC );
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
module_param(urb_pool_size, int, 0);
diff --git a/drivers/usb/serial/whiteheat.h b/drivers/usb/serial/whiteheat.h
index f160797..38065df 100644
--- a/drivers/usb/serial/whiteheat.h
+++ b/drivers/usb/serial/whiteheat.h
@@ -2,7 +2,7 @@
* USB ConnectTech WhiteHEAT driver
*
* Copyright (C) 2002
- * Connect Tech Inc.
+ * Connect Tech Inc.
*
* Copyright (C) 1999, 2000
* Greg Kroah-Hartman (greg@kroah.com)
@@ -12,7 +12,8 @@
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
- * See Documentation/usb/usb-serial.txt for more information on using this driver
+ * See Documentation/usb/usb-serial.txt for more information on using this
+ * driver
*
*/
@@ -30,13 +31,16 @@
#define WHITEHEAT_DUMP 7 /* dump memory */
#define WHITEHEAT_STATUS 8 /* get status */
#define WHITEHEAT_PURGE 9 /* clear the UART fifos */
-#define WHITEHEAT_GET_DTR_RTS 10 /* get the state of DTR and RTS for a port */
-#define WHITEHEAT_GET_HW_INFO 11 /* get EEPROM info and hardware ID */
+#define WHITEHEAT_GET_DTR_RTS 10 /* get the state of DTR and RTS
+ for a port */
+#define WHITEHEAT_GET_HW_INFO 11 /* get EEPROM info and
+ hardware ID */
#define WHITEHEAT_REPORT_TX_DONE 12 /* get the next TX done */
#define WHITEHEAT_EVENT 13 /* unsolicited status events */
-#define WHITEHEAT_ECHO 14 /* send data to the indicated IN endpoint */
-#define WHITEHEAT_DO_TEST 15 /* perform the specified test */
-#define WHITEHEAT_CMD_COMPLETE 16 /* reply for certain commands */
+#define WHITEHEAT_ECHO 14 /* send data to the indicated
+ IN endpoint */
+#define WHITEHEAT_DO_TEST 15 /* perform specified test */
+#define WHITEHEAT_CMD_COMPLETE 16 /* reply for some commands */
#define WHITEHEAT_CMD_FAILURE 17 /* reply for failed commands */
@@ -67,20 +71,28 @@ struct whiteheat_simple {
#define WHITEHEAT_PAR_MARK '1' /* mark (force 1) parity */
#define WHITEHEAT_SFLOW_NONE 'n' /* no software flow control */
-#define WHITEHEAT_SFLOW_RX 'r' /* XOFF/ON is sent when RX fills/empties */
-#define WHITEHEAT_SFLOW_TX 't' /* when received XOFF/ON will stop/start TX */
+#define WHITEHEAT_SFLOW_RX 'r' /* XOFF/ON is sent when RX
+ fills/empties */
+#define WHITEHEAT_SFLOW_TX 't' /* when received XOFF/ON will
+ stop/start TX */
#define WHITEHEAT_SFLOW_RXTX 'b' /* both SFLOW_RX and SFLOW_TX */
#define WHITEHEAT_HFLOW_NONE 0x00 /* no hardware flow control */
-#define WHITEHEAT_HFLOW_RTS_TOGGLE 0x01 /* RTS is on during transmit, off otherwise */
-#define WHITEHEAT_HFLOW_DTR 0x02 /* DTR is off/on when RX fills/empties */
-#define WHITEHEAT_HFLOW_CTS 0x08 /* when received CTS off/on will stop/start TX */
-#define WHITEHEAT_HFLOW_DSR 0x10 /* when received DSR off/on will stop/start TX */
-#define WHITEHEAT_HFLOW_RTS 0x80 /* RTS is off/on when RX fills/empties */
+#define WHITEHEAT_HFLOW_RTS_TOGGLE 0x01 /* RTS is on during transmit,
+ off otherwise */
+#define WHITEHEAT_HFLOW_DTR 0x02 /* DTR is off/on when RX
+ fills/empties */
+#define WHITEHEAT_HFLOW_CTS 0x08 /* when received CTS off/on
+ will stop/start TX */
+#define WHITEHEAT_HFLOW_DSR 0x10 /* when received DSR off/on
+ will stop/start TX */
+#define WHITEHEAT_HFLOW_RTS 0x80 /* RTS is off/on when RX
+ fills/empties */
struct whiteheat_port_settings {
__u8 port; /* port number (1 to N) */
- __u32 baud; /* any value 7 - 460800, firmware calculates best fit; arrives little endian */
+ __u32 baud; /* any value 7 - 460800, firmware calculates
+ best fit; arrives little endian */
__u8 bits; /* 5, 6, 7, or 8 */
__u8 stop; /* 1 or 2, default 1 (2 = 1.5 if bits = 5) */
__u8 parity; /* see WHITEHEAT_PAR_* above */
@@ -167,12 +179,14 @@ struct whiteheat_echo {
*/
#define WHITEHEAT_TEST_UART_RW 0x01 /* read/write uart registers */
#define WHITEHEAT_TEST_UART_INTR 0x02 /* uart interrupt */
-#define WHITEHEAT_TEST_SETUP_CONT 0x03 /* setup for PORT_CONT/PORT_DISCONT */
+#define WHITEHEAT_TEST_SETUP_CONT 0x03 /* setup for
+ PORT_CONT/PORT_DISCONT */
#define WHITEHEAT_TEST_PORT_CONT 0x04 /* port connect */
#define WHITEHEAT_TEST_PORT_DISCONT 0x05 /* port disconnect */
#define WHITEHEAT_TEST_UART_CLK_START 0x06 /* uart clock test start */
#define WHITEHEAT_TEST_UART_CLK_STOP 0x07 /* uart clock test stop */
-#define WHITEHEAT_TEST_MODEM_FT 0x08 /* modem signals, requires a loopback cable/connector */
+#define WHITEHEAT_TEST_MODEM_FT 0x08 /* modem signals, requires a
+ loopback cable/connector */
#define WHITEHEAT_TEST_ERASE_EEPROM 0x09 /* erase eeprom */
#define WHITEHEAT_TEST_READ_EEPROM 0x0a /* read eeprom */
#define WHITEHEAT_TEST_PROGRAM_EEPROM 0x0b /* program eeprom */
@@ -198,19 +212,27 @@ struct whiteheat_test {
#define WHITEHEAT_EVENT_CONNECT 0x08 /* connect field is valid */
#define WHITEHEAT_FLOW_NONE 0x00 /* no flow control active */
-#define WHITEHEAT_FLOW_HARD_OUT 0x01 /* TX is stopped by CTS (waiting for CTS to go on) */
-#define WHITEHEAT_FLOW_HARD_IN 0x02 /* remote TX is stopped by RTS */
-#define WHITEHEAT_FLOW_SOFT_OUT 0x04 /* TX is stopped by XOFF received (waiting for XON) */
-#define WHITEHEAT_FLOW_SOFT_IN 0x08 /* remote TX is stopped by XOFF transmitted */
+#define WHITEHEAT_FLOW_HARD_OUT 0x01 /* TX is stopped by CTS
+ (waiting for CTS to go on) */
+#define WHITEHEAT_FLOW_HARD_IN 0x02 /* remote TX is stopped
+ by RTS */
+#define WHITEHEAT_FLOW_SOFT_OUT 0x04 /* TX is stopped by XOFF
+ received (waiting for XON) */
+#define WHITEHEAT_FLOW_SOFT_IN 0x08 /* remote TX is stopped by XOFF
+ transmitted */
#define WHITEHEAT_FLOW_TX_DONE 0x80 /* TX has completed */
struct whiteheat_status_info {
__u8 port; /* port number (1 to N) */
- __u8 event; /* indicates what the current event is, see WHITEHEAT_EVENT_* above */
- __u8 modem; /* modem signal status (copy of uart's MSR register) */
+ __u8 event; /* indicates what the current event is,
+ see WHITEHEAT_EVENT_* above */
+ __u8 modem; /* modem signal status (copy of uart's
+ MSR register) */
__u8 error; /* line status (copy of uart's LSR register) */
- __u8 flow; /* flow control state, see WHITEHEAT_FLOW_* above */
- __u8 connect; /* 0 means not connected, non-zero means connected */
+ __u8 flow; /* flow control state, see WHITEHEAT_FLOW_*
+ above */
+ __u8 connect; /* 0 means not connected, non-zero means
+ connected */
};
@@ -256,7 +278,8 @@ struct whiteheat_hw_info {
struct whiteheat_event_info {
__u8 port; /* port number (1 to N) */
__u8 event; /* see whiteheat_status_info.event */
- __u8 info; /* see whiteheat_status_info.modem, .error, .flow, .connect */
+ __u8 info; /* see whiteheat_status_info.modem, .error,
+ .flow, .connect */
};
@@ -269,7 +292,8 @@ struct whiteheat_event_info {
struct whiteheat_test_info {
__u8 port; /* port number (1 to N) */
- __u8 test; /* indicates which test this is a response for, see WHITEHEAT_DO_TEST above */
+ __u8 test; /* indicates which test this is a response for,
+ see WHITEHEAT_DO_TEST above */
__u8 status; /* see WHITEHEAT_TEST_* above */
__u8 results[32]; /* test-dependent results */
};
^ permalink raw reply related [flat|nested] 32+ messages in thread* [PATCH 20/20] whiteheat: fix bugs found in the tidy and audit
2008-05-19 14:50 [PATCH 00/20] Implment a tty port structure and supporting logic Alan Cox
` (17 preceding siblings ...)
2008-05-19 14:51 ` [PATCH 19/20] whiteheat: coding style Alan Cox
@ 2008-05-19 14:52 ` Alan Cox
2008-05-19 16:50 ` [PATCH 00/20] Implment a tty port structure and supporting logic Greg KH
` (2 subsequent siblings)
21 siblings, 0 replies; 32+ messages in thread
From: Alan Cox @ 2008-05-19 14:52 UTC (permalink / raw)
To: linux-kernel, akpm, greg
From: Alan Cox <alan@redhat.com>
Termios tidy up, plus fix break and DTR.
---
drivers/usb/serial/whiteheat.c | 12 ++++--------
1 files changed, 4 insertions(+), 8 deletions(-)
diff --git a/drivers/usb/serial/whiteheat.c b/drivers/usb/serial/whiteheat.c
index 957ebda..58d4693 100644
--- a/drivers/usb/serial/whiteheat.c
+++ b/drivers/usb/serial/whiteheat.c
@@ -651,11 +651,8 @@ static int whiteheat_open(struct tty_struct *tty,
goto exit;
}
- if (tty) {
- old_term.c_cflag = ~tty->termios->c_cflag;
- old_term.c_iflag = ~tty->termios->c_iflag;
- whiteheat_set_termios(tty, port, &old_term);
- }
+ if (tty)
+ firm_setup_port(tty);
/* Work around HCD bugs */
usb_clear_halt(port->serial->dev, port->read_urb->pipe);
@@ -905,7 +902,6 @@ static int whiteheat_ioctl(struct tty_struct *tty, struct file * file, unsigned
static void whiteheat_set_termios(struct tty_struct *tty,
struct usb_serial_port *port, struct ktermios *old_termios)
{
- /* FIXME */
firm_setup_port(tty);
}
@@ -1298,7 +1294,7 @@ static int firm_set_dtr(struct usb_serial_port *port, __u8 onoff)
dtr_command.port = port->number - port->serial->minor + 1;
dtr_command.state = onoff;
- return firm_send_command(port, WHITEHEAT_SET_RTS,
+ return firm_send_command(port, WHITEHEAT_SET_DTR,
(__u8 *)&dtr_command, sizeof(dtr_command));
}
@@ -1309,7 +1305,7 @@ static int firm_set_break(struct usb_serial_port *port, __u8 onoff)
break_command.port = port->number - port->serial->minor + 1;
break_command.state = onoff;
- return firm_send_command(port, WHITEHEAT_SET_RTS,
+ return firm_send_command(port, WHITEHEAT_SET_BREAK,
(__u8 *)&break_command, sizeof(break_command));
}
^ permalink raw reply related [flat|nested] 32+ messages in thread* Re: [PATCH 00/20] Implment a tty port structure and supporting logic
2008-05-19 14:50 [PATCH 00/20] Implment a tty port structure and supporting logic Alan Cox
` (18 preceding siblings ...)
2008-05-19 14:52 ` [PATCH 20/20] whiteheat: fix bugs found in the tidy and audit Alan Cox
@ 2008-05-19 16:50 ` Greg KH
2008-05-19 18:27 ` Alan Cox
2008-05-20 8:52 ` Andrew Morton
2008-05-19 22:39 ` Aristeu Rozanski
2008-05-27 18:05 ` Greg KH
21 siblings, 2 replies; 32+ messages in thread
From: Greg KH @ 2008-05-19 16:50 UTC (permalink / raw)
To: Alan Cox; +Cc: linux-kernel, akpm
On Mon, May 19, 2008 at 03:50:07PM +0100, Alan Cox wrote:
> Right now each tty has its own port level structure which means we can share
> no code between ports. Introduce a structure and some initial minor helper
> routines so that we can move towards commonality. In doing this the USB serial
> code gets a bit of shake up as it kept using port->tty unsafely. Fixing that
> means changing the API of all the USB serial drivers. On the bright side the
> API now looks far more like the tty layer API which will become useful later
> on.
Very nice.
If you don't mind, I'll be glad to take this through my tree as you are
touching the usb-serial drivers so much. Andrew, any objection to this?
> MAINTAINERS | 72 +
Odd, I don't see you modifing this file in your patch series...
thanks,
greg k-h
^ permalink raw reply [flat|nested] 32+ messages in thread* Re: [PATCH 00/20] Implment a tty port structure and supporting logic
2008-05-19 16:50 ` [PATCH 00/20] Implment a tty port structure and supporting logic Greg KH
@ 2008-05-19 18:27 ` Alan Cox
2008-05-20 8:52 ` Andrew Morton
1 sibling, 0 replies; 32+ messages in thread
From: Alan Cox @ 2008-05-19 18:27 UTC (permalink / raw)
To: Greg KH; +Cc: linux-kernel, akpm
> If you don't mind, I'll be glad to take this through my tree as you are
> touching the usb-serial drivers so much. Andrew, any objection to this?
Seems sensible to me.
> > MAINTAINERS | 72 +
>
> Odd, I don't see you modifing this file in your patch series...
stgit is being a bit flaky it seems.
Alan
^ permalink raw reply [flat|nested] 32+ messages in thread
* Re: [PATCH 00/20] Implment a tty port structure and supporting logic
2008-05-19 16:50 ` [PATCH 00/20] Implment a tty port structure and supporting logic Greg KH
2008-05-19 18:27 ` Alan Cox
@ 2008-05-20 8:52 ` Andrew Morton
2008-05-20 17:23 ` Greg KH
1 sibling, 1 reply; 32+ messages in thread
From: Andrew Morton @ 2008-05-20 8:52 UTC (permalink / raw)
To: Greg KH; +Cc: Alan Cox, linux-kernel
On Mon, 19 May 2008 09:50:49 -0700 Greg KH <greg@kroah.com> wrote:
> On Mon, May 19, 2008 at 03:50:07PM +0100, Alan Cox wrote:
> > Right now each tty has its own port level structure which means we can share
> > no code between ports. Introduce a structure and some initial minor helper
> > routines so that we can move towards commonality. In doing this the USB serial
> > code gets a bit of shake up as it kept using port->tty unsafely. Fixing that
> > means changing the API of all the USB serial drivers. On the bright side the
> > API now looks far more like the tty layer API which will become useful later
> > on.
>
> Very nice.
>
> If you don't mind, I'll be glad to take this through my tree as you are
> touching the usb-serial drivers so much. Andrew, any objection to this?
A lot depends on what else Alan is brewing up. I only have a single
tty-related patch at present (remove-is_tty.patch) and a handful of
possibly-related char driver patches
(proper-extern-for-mwave_s_mdd.patch, if-0-hpet_unregister.patch and
riscom8-remove-redundant-null-pointer-test.patch).
But if a great mountain of tty- and/or char-related patches is
forthcoming, that mountain will probably have a depencency upon your
tree. And that's OK too, as long as you don't go and bugger up your
tree and get it dropped from linux-next! Because if that happens I'll
need to temporarily drop all the dependent patches and remember to
restore them, which is always a bit sad.
^ permalink raw reply [flat|nested] 32+ messages in thread
* Re: [PATCH 00/20] Implment a tty port structure and supporting logic
2008-05-20 8:52 ` Andrew Morton
@ 2008-05-20 17:23 ` Greg KH
2008-05-20 18:53 ` Alan Cox
0 siblings, 1 reply; 32+ messages in thread
From: Greg KH @ 2008-05-20 17:23 UTC (permalink / raw)
To: Andrew Morton; +Cc: Alan Cox, linux-kernel
On Tue, May 20, 2008 at 01:52:41AM -0700, Andrew Morton wrote:
> On Mon, 19 May 2008 09:50:49 -0700 Greg KH <greg@kroah.com> wrote:
>
> > On Mon, May 19, 2008 at 03:50:07PM +0100, Alan Cox wrote:
> > > Right now each tty has its own port level structure which means we can share
> > > no code between ports. Introduce a structure and some initial minor helper
> > > routines so that we can move towards commonality. In doing this the USB serial
> > > code gets a bit of shake up as it kept using port->tty unsafely. Fixing that
> > > means changing the API of all the USB serial drivers. On the bright side the
> > > API now looks far more like the tty layer API which will become useful later
> > > on.
> >
> > Very nice.
> >
> > If you don't mind, I'll be glad to take this through my tree as you are
> > touching the usb-serial drivers so much. Andrew, any objection to this?
>
> A lot depends on what else Alan is brewing up. I only have a single
> tty-related patch at present (remove-is_tty.patch) and a handful of
> possibly-related char driver patches
> (proper-extern-for-mwave_s_mdd.patch, if-0-hpet_unregister.patch and
> riscom8-remove-redundant-null-pointer-test.patch).
>
> But if a great mountain of tty- and/or char-related patches is
> forthcoming, that mountain will probably have a depencency upon your
> tree. And that's OK too, as long as you don't go and bugger up your
> tree and get it dropped from linux-next! Because if that happens I'll
> need to temporarily drop all the dependent patches and remember to
> restore them, which is always a bit sad.
That's up to Alan, I don't know what he has brewing for 2.6.27.
Alan?
thanks,
greg k-h
^ permalink raw reply [flat|nested] 32+ messages in thread
* Re: [PATCH 00/20] Implment a tty port structure and supporting logic
2008-05-20 17:23 ` Greg KH
@ 2008-05-20 18:53 ` Alan Cox
0 siblings, 0 replies; 32+ messages in thread
From: Alan Cox @ 2008-05-20 18:53 UTC (permalink / raw)
To: Greg KH; +Cc: Andrew Morton, linux-kernel
> > But if a great mountain of tty- and/or char-related patches is
> > forthcoming, that mountain will probably have a depencency upon your
> > tree. And that's OK too, as long as you don't go and bugger up your
> > tree and get it dropped from linux-next! Because if that happens I'll
> > need to temporarily drop all the dependent patches and remember to
> > restore them, which is always a bit sad.
>
> That's up to Alan, I don't know what he has brewing for 2.6.27.
I'm trying to work in sensible testable stages. Whats brewing at the
moment is thoughts tty_get() and tty_put() but I don't have a bootable
usable tree for that yet and there is work to be done.
^ permalink raw reply [flat|nested] 32+ messages in thread
* Re: [PATCH 00/20] Implment a tty port structure and supporting logic
2008-05-19 14:50 [PATCH 00/20] Implment a tty port structure and supporting logic Alan Cox
` (19 preceding siblings ...)
2008-05-19 16:50 ` [PATCH 00/20] Implment a tty port structure and supporting logic Greg KH
@ 2008-05-19 22:39 ` Aristeu Rozanski
2008-05-20 8:31 ` Alan Cox
2008-05-27 18:05 ` Greg KH
21 siblings, 1 reply; 32+ messages in thread
From: Aristeu Rozanski @ 2008-05-19 22:39 UTC (permalink / raw)
To: Alan Cox; +Cc: linux-kernel
Alan,
> Right now each tty has its own port level structure which means we can share
> no code between ports. Introduce a structure and some initial minor helper
> routines so that we can move towards commonality. In doing this the USB serial
> code gets a bit of shake up as it kept using port->tty unsafely. Fixing that
> means changing the API of all the USB serial drivers. On the bright side the
> API now looks far more like the tty layer API which will become useful later
> on.
do you have your tty/serial rework tree available in some server?
--
Aristeu
^ permalink raw reply [flat|nested] 32+ messages in thread* Re: [PATCH 00/20] Implment a tty port structure and supporting logic
2008-05-19 22:39 ` Aristeu Rozanski
@ 2008-05-20 8:31 ` Alan Cox
0 siblings, 0 replies; 32+ messages in thread
From: Alan Cox @ 2008-05-20 8:31 UTC (permalink / raw)
To: Aristeu Rozanski; +Cc: linux-kernel
On Mon, 19 May 2008 18:39:43 -0400
Aristeu Rozanski <aris@ruivo.org> wrote:
> Alan,
> > Right now each tty has its own port level structure which means we can share
> > no code between ports. Introduce a structure and some initial minor helper
> > routines so that we can move towards commonality. In doing this the USB serial
> > code gets a bit of shake up as it kept using port->tty unsafely. Fixing that
> > means changing the API of all the USB serial drivers. On the bright side the
> > API now looks far more like the tty layer API which will become useful later
> > on.
> do you have your tty/serial rework tree available in some server?
Not currently. Its on my todo list to sort that out hence testign stuff
like stgit at the moment.
Alan
^ permalink raw reply [flat|nested] 32+ messages in thread
* Re: [PATCH 00/20] Implment a tty port structure and supporting logic
2008-05-19 14:50 [PATCH 00/20] Implment a tty port structure and supporting logic Alan Cox
` (20 preceding siblings ...)
2008-05-19 22:39 ` Aristeu Rozanski
@ 2008-05-27 18:05 ` Greg KH
21 siblings, 0 replies; 32+ messages in thread
From: Greg KH @ 2008-05-27 18:05 UTC (permalink / raw)
To: Alan Cox; +Cc: linux-kernel, akpm
On Mon, May 19, 2008 at 03:50:07PM +0100, Alan Cox wrote:
> Right now each tty has its own port level structure which means we can share
> no code between ports. Introduce a structure and some initial minor helper
> routines so that we can move towards commonality. In doing this the USB serial
> code gets a bit of shake up as it kept using port->tty unsafely. Fixing that
> means changing the API of all the USB serial drivers. On the bright side the
> API now looks far more like the tty layer API which will become useful later
> on.
On all of these patches, you did not add a "Signed-off-by:". Was that
on purpose and you do not want these patches applied, or unintentional?
thanks,
greg k-h
^ permalink raw reply [flat|nested] 32+ messages in thread