staging: comedi: adl_pci9111: remove pci9111_interrupt_and_fifo_[sg]et macros
authorH Hartley Sweeten <hartleys@visionengravers.com>
Tue, 11 Sep 2012 02:03:00 +0000 (19:03 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 11 Sep 2012 03:08:01 +0000 (20:08 -0700)
These macros rely on a local variable having a specific name.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/staging/comedi/drivers/adl_pci9111.c

index 6e93b9e9d6a3b9c7dc86585067bf252286b57d12..e2c327c62b63569e7e1471c69b5f6f7623e19234 100644 (file)
@@ -100,9 +100,9 @@ TODO:
 #define PCI9111_AI_RANGE_REG                           0x08
 #define PCI9111_RANGE_STATUS_REG                       0x08
 #define PCI9111_REGISTER_TRIGGER_MODE_CONTROL          0x0A
-#define PCI9111_REGISTER_AD_MODE_INTERRUPT_READBACK    0x0A
+#define PCI9111_AI_MODE_INT_RB_REG                     0x0A
 #define PCI9111_SOFTWARE_TRIGGER_REG                   0x0E
-#define PCI9111_REGISTER_INTERRUPT_CONTROL             0x0C
+#define PCI9111_INT_CTRL_REG                           0x0C
 #define PCI9111_8254_BASE_REG                          0x40
 #define PCI9111_INT_CLR_REG                            0x48
 
@@ -134,25 +134,18 @@ TODO:
  */
 
 #define pci9111_trigger_and_autoscan_get() \
-       (inb(dev->iobase + PCI9111_REGISTER_AD_MODE_INTERRUPT_READBACK)&0x0F)
+       (inb(dev->iobase + PCI9111_AI_MODE_INT_RB_REG)&0x0F)
 
 #define pci9111_trigger_and_autoscan_set(flags) \
        outb(flags, dev->iobase + PCI9111_REGISTER_TRIGGER_MODE_CONTROL)
 
-#define pci9111_interrupt_and_fifo_get() \
-       ((inb(dev->iobase + PCI9111_REGISTER_AD_MODE_INTERRUPT_READBACK) \
-               >> 4) & 0x03)
-
-#define pci9111_interrupt_and_fifo_set(flags) \
-       outb(flags, dev->iobase + PCI9111_REGISTER_INTERRUPT_CONTROL)
-
 #define pci9111_fifo_reset() do { \
        outb(PCI9111_FFEN_SET_FIFO_ENABLE, \
-               dev->iobase + PCI9111_REGISTER_INTERRUPT_CONTROL); \
+               dev->iobase + PCI9111_INT_CTRL_REG); \
        outb(PCI9111_FFEN_SET_FIFO_DISABLE, \
-               dev->iobase + PCI9111_REGISTER_INTERRUPT_CONTROL); \
+               dev->iobase + PCI9111_INT_CTRL_REG); \
        outb(PCI9111_FFEN_SET_FIFO_ENABLE, \
-               dev->iobase + PCI9111_REGISTER_INTERRUPT_CONTROL); \
+               dev->iobase + PCI9111_INT_CTRL_REG); \
        } while (0)
 
 
@@ -322,15 +315,21 @@ static void pci9111_interrupt_source_set(struct comedi_device *dev,
 {
        int flags;
 
-       flags = pci9111_interrupt_and_fifo_get() & 0x04;
+       /* Read the current interrupt control bits */
+       flags = inb(dev->iobase + PCI9111_AI_MODE_INT_RB_REG);
+       /* Shift the bits so they are compatible with the write register */
+       flags >>= 4;
+       /* Mask off the ISCx bits */
+       flags &= 0xc0;
 
+       /* Now set the new ISCx bits */
        if (irq_0_source == irq_on_fifo_half_full)
                flags |= PCI9111_ISC0_SET_IRQ_ON_FIFO_HALF_FULL;
 
        if (irq_1_source == irq_on_external_trigger)
                flags |= PCI9111_ISC1_SET_IRQ_ON_EXT_TRG;
 
-       pci9111_interrupt_and_fifo_set(flags);
+       outb(flags, dev->iobase + PCI9111_INT_CTRL_REG);
 }
 
 /*  ------------------------------------------------------------------ */