diff options
| -rw-r--r-- | drivers/staging/comedi/drivers/pcl818.c | 47 |
1 files changed, 27 insertions, 20 deletions
diff --git a/drivers/staging/comedi/drivers/pcl818.c b/drivers/staging/comedi/drivers/pcl818.c index 4ab4154..29cc5a5 100644 --- a/drivers/staging/comedi/drivers/pcl818.c +++ b/drivers/staging/comedi/drivers/pcl818.c @@ -1025,26 +1025,32 @@ static int pcl818_ai_cmd_mode(int mode, struct comedi_device * dev, } #endif break; - case 0: /* IRQ */ - /* rt_printk("IRQ\n"); */ - if (mode == 1) { - devpriv->ai_mode = INT_TYPE_AI1_INT; - outb(0x83 | (dev->irq << 4), dev->iobase + PCL818_CONTROL); /* Pacer+IRQ */ - } else { - devpriv->ai_mode = INT_TYPE_AI3_INT; - outb(0x82 | (dev->irq << 4), dev->iobase + PCL818_CONTROL); /* Ext trig+IRQ */ - }; - break; - case -1: /* FIFO */ - outb(1, dev->iobase + PCL818_FI_ENABLE); /* enable FIFO */ - if (mode == 1) { - devpriv->ai_mode = INT_TYPE_AI1_FIFO; - outb(0x03, dev->iobase + PCL818_CONTROL); /* Pacer */ + case 0: + if (!devpriv->usefifo) { + /* IRQ */ + /* rt_printk("IRQ\n"); */ + if (mode == 1) { + devpriv->ai_mode = INT_TYPE_AI1_INT; + /* Pacer+IRQ */ + outb(0x83 | (dev->irq << 4), dev->iobase + PCL818_CONTROL); + } else { + devpriv->ai_mode = INT_TYPE_AI3_INT; + /* Ext trig+IRQ */ + outb(0x82 | (dev->irq << 4), dev->iobase + PCL818_CONTROL); + } } else { - devpriv->ai_mode = INT_TYPE_AI3_FIFO; - outb(0x02, dev->iobase + PCL818_CONTROL); - }; /* Ext trig */ - break; + /* FIFO */ + /* enable FIFO */ + outb(1, dev->iobase + PCL818_FI_ENABLE); + if (mode == 1) { + devpriv->ai_mode = INT_TYPE_AI1_FIFO; + /* Pacer */ + outb(0x03, dev->iobase + PCL818_CONTROL); + } else { + devpriv->ai_mode = INT_TYPE_AI3_FIFO; + outb(0x02, dev->iobase + PCL818_CONTROL); + } + } } start_pacer(dev, mode, divisor1, divisor2); @@ -1687,7 +1693,8 @@ static int pcl818_attach(struct comedi_device * dev, struct comedi_devconfig * i { int ret; unsigned long iobase; - unsigned int irq, dma; + unsigned int irq; + int dma; unsigned long pages; struct comedi_subdevice *s; |