diff options
Diffstat (limited to 'drivers/staging/comedi')
| -rw-r--r-- | drivers/staging/comedi/drivers/amplc_pci224.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/staging/comedi/drivers/amplc_pci224.c b/drivers/staging/comedi/drivers/amplc_pci224.c index 2e6decf1b69d..07555cffc414 100644 --- a/drivers/staging/comedi/drivers/amplc_pci224.c +++ b/drivers/staging/comedi/drivers/amplc_pci224.c @@ -216,8 +216,12 @@ #define GAT_GND 1 /* GND (i.e. disabled) */ #define GAT_EXT 2 /* reserved (external gate input) */ #define GAT_NOUTNM2 3 /* inverted output of channel-2 modulo total */ -/* Macro to construct gate input configuration register value. */ -#define GAT_CONFIG(chan, src) ((((chan) & 3) << 3) | ((src) & 7)) + +static inline unsigned int pci224_gat_config(unsigned int chan, + unsigned int src) +{ + return ((chan & 3) << 3) | (src & 7); +} /* * Summary of CLK_OUTNM1 and GAT_NOUTNM2 connections for PCI224 and PCI234: @@ -817,10 +821,10 @@ static void pci224_ao_start_pacer(struct comedi_device *dev, * source. */ /* Make sure Z2-0 is gated on. */ - outb(GAT_CONFIG(0, GAT_VCC), devpriv->iobase1 + PCI224_ZGAT_SCE); + outb(pci224_gat_config(0, GAT_VCC), devpriv->iobase1 + PCI224_ZGAT_SCE); /* Cascading with Z2-2. */ /* Make sure Z2-2 is gated on. */ - outb(GAT_CONFIG(2, GAT_VCC), devpriv->iobase1 + PCI224_ZGAT_SCE); + outb(pci224_gat_config(2, GAT_VCC), devpriv->iobase1 + PCI224_ZGAT_SCE); /* Z2-2 needs 10 MHz clock. */ outb(CLK_CONFIG(2, CLK_10MHZ), devpriv->iobase1 + PCI224_ZCLK_SCE); /* Z2-0 is clocked from Z2-2's output. */ |