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skypopen: OSS driver has active timers only on active devices (eg: when it's actually used by a skypeclient)

This commit is contained in:
Giovanni Maruzzelli 2013-06-21 10:57:59 +02:00
parent 5a0f43d956
commit eb79128d8e
2 changed files with 36 additions and 4 deletions
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39
src/mod/endpoints/mod_skypopen/oss/main.c
View File

@ -203,6 +203,9 @@ static int skypopen_c_open(struct inode *inode, struct file *filp)
/* look for a skypopenc device in the list */
spin_lock(&skypopen_c_lock);
dev = skypopen_c_lookfor_device(key);
if (dev){
dev->opened++;
}
spin_unlock(&skypopen_c_lock);
if (!dev)
@ -215,10 +218,30 @@ static int skypopen_c_open(struct inode *inode, struct file *filp)
static int skypopen_c_release(struct inode *inode, struct file *filp)
{
/*
* Nothing to do, because the device is persistent.
* A `real' cloned device should be freed on last close
*/
dev_t key;
struct skypopen_dev *dev = filp->private_data;
int ret;
key = current->tgid;
spin_lock(&skypopen_c_lock);
dev->opened--;
spin_unlock(&skypopen_c_lock);
if(!dev->opened){
#ifdef WANT_HRTIMER
if(dev->timer_inq_started){
ret = hrtimer_cancel( &dev->timer_inq );
//printk( "Stopped skypopen OSS driver read HRtimer skype client:(%d) ret=%d\n", key, ret);
dev->timer_inq_started=0;
}
if(dev->timer_outq_started){
ret = hrtimer_cancel( &dev->timer_outq );
//printk( "Stopped skypopen OSS driver write HRtimer skype client:(%d) ret=%d\n", key, ret);
dev->timer_outq_started=0;
}
#endif// WANT_HRTIMER
}
return 0;
}
@ -231,6 +254,9 @@ static ssize_t skypopen_read(struct file *filp, char __user *buf, size_t count,
{
DEFINE_WAIT(wait);
struct skypopen_dev *dev = filp->private_data;
dev_t key;
key = current->tgid;
if(unload)
return -1;
@ -244,6 +270,7 @@ static ssize_t skypopen_read(struct file *filp, char __user *buf, size_t count,
dev->timer_inq.function = &my_hrtimer_callback_inq;
hrtimer_start( &dev->timer_inq, ktime_inq, HRTIMER_MODE_REL );
dev->timer_inq_started = 1;
//printk( "Started skypopen OSS driver read HRtimer skype client:(%d) \n", key);
}
#endif// WANT_HRTIMER
@ -259,6 +286,9 @@ static ssize_t skypopen_write(struct file *filp, const char __user *buf, size_t
{
DEFINE_WAIT(wait);
struct skypopen_dev *dev = filp->private_data;
dev_t key;
key = current->tgid;
if(unload)
return -1;
@ -272,6 +302,7 @@ static ssize_t skypopen_write(struct file *filp, const char __user *buf, size_t
dev->timer_outq.function = &my_hrtimer_callback_outq;
hrtimer_start( &dev->timer_outq, ktime_outq, HRTIMER_MODE_REL );
dev->timer_outq_started = 1;
//printk( "Started skypopen OSS driver write HRtimer skype client:(%d) \n", key);
}
#endif// WANT_HRTIMER

1
src/mod/endpoints/mod_skypopen/oss/skypopen.h
View File

@ -66,6 +66,7 @@ struct skypopen_dev {
#endif// WANT_HRTIMER
int timer_inq_started;
int timer_outq_started;
int opened;
};