diff options
Diffstat (limited to 'drivers/staging/comedi/drivers/comedi_test.c')
| -rw-r--r-- | drivers/staging/comedi/drivers/comedi_test.c | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/drivers/staging/comedi/drivers/comedi_test.c b/drivers/staging/comedi/drivers/comedi_test.c index ccfd642998be..c7e8194984e5 100644 --- a/drivers/staging/comedi/drivers/comedi_test.c +++ b/drivers/staging/comedi/drivers/comedi_test.c @@ -93,6 +93,7 @@ struct waveform_private { unsigned int ai_scan_period; /* AI scan period in usec */ unsigned int ai_convert_period; /* AI conversion period in usec */ struct timer_list ao_timer; /* timer for AO commands */ + struct comedi_device *dev; /* parent comedi device */ u64 ao_last_scan_time; /* time of previous AO scan in usec */ unsigned int ao_scan_period; /* AO scan period in usec */ unsigned short ao_loopbacks[N_CHANS]; @@ -201,10 +202,10 @@ static unsigned short fake_waveform(struct comedi_device *dev, * It should run in the background; therefore it is scheduled by * a timer mechanism. */ -static void waveform_ai_timer(unsigned long arg) +static void waveform_ai_timer(struct timer_list *t) { - struct comedi_device *dev = (struct comedi_device *)arg; - struct waveform_private *devpriv = dev->private; + struct waveform_private *devpriv = from_timer(devpriv, t, ai_timer); + struct comedi_device *dev = devpriv->dev; struct comedi_subdevice *s = dev->read_subdev; struct comedi_async *async = s->async; struct comedi_cmd *cmd = &async->cmd; @@ -438,10 +439,10 @@ static int waveform_ai_insn_read(struct comedi_device *dev, * This is the background routine to handle AO commands, scheduled by * a timer mechanism. */ -static void waveform_ao_timer(unsigned long arg) +static void waveform_ao_timer(struct timer_list *t) { - struct comedi_device *dev = (struct comedi_device *)arg; - struct waveform_private *devpriv = dev->private; + struct waveform_private *devpriv = from_timer(devpriv, t, ao_timer); + struct comedi_device *dev = devpriv->dev; struct comedi_subdevice *s = dev->write_subdev; struct comedi_async *async = s->async; struct comedi_cmd *cmd = &async->cmd; @@ -686,8 +687,9 @@ static int waveform_common_attach(struct comedi_device *dev, for (i = 0; i < s->n_chan; i++) devpriv->ao_loopbacks[i] = s->maxdata / 2; - setup_timer(&devpriv->ai_timer, waveform_ai_timer, (unsigned long)dev); - setup_timer(&devpriv->ao_timer, waveform_ao_timer, (unsigned long)dev); + devpriv->dev = dev; + timer_setup(&devpriv->ai_timer, waveform_ai_timer, 0); + timer_setup(&devpriv->ao_timer, waveform_ao_timer, 0); dev_info(dev->class_dev, "%s: %u microvolt, %u microsecond waveform attached\n", |