diff options
| author | Hendrik Brueckner <brueckner@linux.vnet.ibm.com> | 2008-10-13 23:12:48 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2008-10-22 10:59:54 +1100 |
| commit | fc362e2e0efd8b652ebfb409a4e43e6189c04f6f (patch) | |
| tree | 9cffc84bcc4e615ee08f0f47ff58a7131b55194a /drivers/char | |
| parent | a02efb906d12c9d4eb2ab7c59049ba9545e5412d (diff) | |
| download | kernel_samsung_aries-fc362e2e0efd8b652ebfb409a4e43e6189c04f6f.zip kernel_samsung_aries-fc362e2e0efd8b652ebfb409a4e43e6189c04f6f.tar.gz kernel_samsung_aries-fc362e2e0efd8b652ebfb409a4e43e6189c04f6f.tar.bz2 | |
hvc_console: Add a hangup notifier for backends
I have added a hangup notifier that can be used by hvc console
backends to handle a tty hangup. The default irq hangup notifier
calls the notifier_del_irq() for compatibility.
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'drivers/char')
| -rw-r--r-- | drivers/char/hvc_console.c | 4 | ||||
| -rw-r--r-- | drivers/char/hvc_console.h | 4 | ||||
| -rw-r--r-- | drivers/char/hvc_irq.c | 5 | ||||
| -rw-r--r-- | drivers/char/hvc_iseries.c | 1 | ||||
| -rw-r--r-- | drivers/char/hvc_vio.c | 1 | ||||
| -rw-r--r-- | drivers/char/hvc_xen.c | 1 | ||||
| -rw-r--r-- | drivers/char/virtio_console.c | 1 |
7 files changed, 14 insertions, 3 deletions
diff --git a/drivers/char/hvc_console.c b/drivers/char/hvc_console.c index bf70450..5c9750e 100644 --- a/drivers/char/hvc_console.c +++ b/drivers/char/hvc_console.c @@ -418,8 +418,8 @@ static void hvc_hangup(struct tty_struct *tty) spin_unlock_irqrestore(&hp->lock, flags); - if (hp->ops->notifier_del) - hp->ops->notifier_del(hp, hp->data); + if (hp->ops->notifier_hangup) + hp->ops->notifier_hangup(hp, hp->data); while(temp_open_count) { --temp_open_count; diff --git a/drivers/char/hvc_console.h b/drivers/char/hvc_console.h index 9790201..ec0e9bb 100644 --- a/drivers/char/hvc_console.h +++ b/drivers/char/hvc_console.h @@ -65,9 +65,10 @@ struct hv_ops { int (*get_chars)(uint32_t vtermno, char *buf, int count); int (*put_chars)(uint32_t vtermno, const char *buf, int count); - /* Callbacks for notification. Called in open and close */ + /* Callbacks for notification. Called in open, close and hangup */ int (*notifier_add)(struct hvc_struct *hp, int irq); void (*notifier_del)(struct hvc_struct *hp, int irq); + void (*notifier_hangup)(struct hvc_struct *hp, int irq); }; /* Register a vterm and a slot index for use as a console (console_init) */ @@ -86,6 +87,7 @@ void hvc_kick(void); /* default notifier for irq based notification */ extern int notifier_add_irq(struct hvc_struct *hp, int data); extern void notifier_del_irq(struct hvc_struct *hp, int data); +extern void notifier_hangup_irq(struct hvc_struct *hp, int data); #if defined(CONFIG_XMON) && defined(CONFIG_SMP) diff --git a/drivers/char/hvc_irq.c b/drivers/char/hvc_irq.c index 73a59cd..d09e568 100644 --- a/drivers/char/hvc_irq.c +++ b/drivers/char/hvc_irq.c @@ -42,3 +42,8 @@ void notifier_del_irq(struct hvc_struct *hp, int irq) free_irq(irq, hp); hp->irq_requested = 0; } + +void notifier_hangup_irq(struct hvc_struct *hp, int irq) +{ + notifier_del_irq(hp, irq); +} diff --git a/drivers/char/hvc_iseries.c b/drivers/char/hvc_iseries.c index b71c610..b74a2f8 100644 --- a/drivers/char/hvc_iseries.c +++ b/drivers/char/hvc_iseries.c @@ -202,6 +202,7 @@ static struct hv_ops hvc_get_put_ops = { .put_chars = put_chars, .notifier_add = notifier_add_irq, .notifier_del = notifier_del_irq, + .notifier_hangup = notifier_hangup_irq, }; static int __devinit hvc_vio_probe(struct vio_dev *vdev, diff --git a/drivers/char/hvc_vio.c b/drivers/char/hvc_vio.c index 93f3840..019e0b5 100644 --- a/drivers/char/hvc_vio.c +++ b/drivers/char/hvc_vio.c @@ -82,6 +82,7 @@ static struct hv_ops hvc_get_put_ops = { .put_chars = hvc_put_chars, .notifier_add = notifier_add_irq, .notifier_del = notifier_del_irq, + .notifier_hangup = notifier_hangup_irq, }; static int __devinit hvc_vio_probe(struct vio_dev *vdev, diff --git a/drivers/char/hvc_xen.c b/drivers/char/hvc_xen.c index 538ceea..eba999f 100644 --- a/drivers/char/hvc_xen.c +++ b/drivers/char/hvc_xen.c @@ -102,6 +102,7 @@ static struct hv_ops hvc_ops = { .put_chars = write_console, .notifier_add = notifier_add_irq, .notifier_del = notifier_del_irq, + .notifier_hangup = notifier_hangup_irq, }; static int __init xen_init(void) diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c index d0f4eb6..3fb0d2c 100644 --- a/drivers/char/virtio_console.c +++ b/drivers/char/virtio_console.c @@ -198,6 +198,7 @@ static int __devinit virtcons_probe(struct virtio_device *dev) virtio_cons.put_chars = put_chars; virtio_cons.notifier_add = notifier_add_vio; virtio_cons.notifier_del = notifier_del_vio; + virtio_cons.notifier_hangup = notifier_del_vio; /* The first argument of hvc_alloc() is the virtual console number, so * we use zero. The second argument is the parameter for the |