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authorHendrik Brueckner <brueckner@linux.vnet.ibm.com>2008-10-13 23:12:48 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2008-10-22 10:59:54 +1100
commitfc362e2e0efd8b652ebfb409a4e43e6189c04f6f (patch)
tree9cffc84bcc4e615ee08f0f47ff58a7131b55194a /drivers/char/hvc_console.h
parenta02efb906d12c9d4eb2ab7c59049ba9545e5412d (diff)
downloadop-kernel-dev-fc362e2e0efd8b652ebfb409a4e43e6189c04f6f.zip
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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/hvc_console.h')
-rw-r--r--drivers/char/hvc_console.h4
1 files changed, 3 insertions, 1 deletions
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)
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