staging: comedi: drivers: use comedi_fc.h cmdtest helpers

[pandora-kernel.git] / drivers / staging / comedi / drivers / ni_atmio16d.c

diff --git a/drivers/staging/comedi/drivers/ni_atmio16d.c b/drivers/staging/comedi/drivers/ni_atmio16d.c
index 4108cbf..e91a620 100644 (file)
--- a/drivers/staging/comedi/drivers/ni_atmio16d.c
+++ b/drivers/staging/comedi/drivers/ni_atmio16d.c
@@ -40,6 +40,7 @@ Devices: [National Instruments] AT-MIO-16 (atmio16), AT-MIO-16D (atmio16d)
 
 #include <linux/ioport.h>
 
+#include "comedi_fc.h"
 #include "8255.h"
 
 /* Configuration and Status Registers */
@@ -246,45 +247,26 @@ static int atmio16d_ai_cmdtest(struct comedi_device *dev,
                               struct comedi_subdevice *s,
                               struct comedi_cmd *cmd)
 {
-       int err = 0, tmp;
+       int err = 0;
 
-       /* make sure triggers are valid */
-       tmp = cmd->start_src;
-       cmd->start_src &= TRIG_NOW;
-       if (!cmd->start_src || tmp != cmd->start_src)
-               err++;
-
-       tmp = cmd->scan_begin_src;
-       cmd->scan_begin_src &= TRIG_FOLLOW | TRIG_TIMER;
-       if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-               err++;
-
-       tmp = cmd->convert_src;
-       cmd->convert_src &= TRIG_TIMER;
-       if (!cmd->convert_src || tmp != cmd->convert_src)
-               err++;
-
-       tmp = cmd->scan_end_src;
-       cmd->scan_end_src &= TRIG_COUNT;
-       if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-               err++;
+       /* Step 1 : check if triggers are trivially valid */
 
-       tmp = cmd->stop_src;
-       cmd->stop_src &= TRIG_COUNT | TRIG_NONE;
-       if (!cmd->stop_src || tmp != cmd->stop_src)
-               err++;
+       err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
+       err |= cfc_check_trigger_src(&cmd->scan_begin_src,
+                                       TRIG_FOLLOW | TRIG_TIMER);
+       err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_TIMER);
+       err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+       err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
        if (err)
                return 1;
 
-       /* step 2: make sure trigger sources are unique & mutually compatible */
-       /* note that mutual compatibility is not an issue here */
-       if (cmd->scan_begin_src != TRIG_FOLLOW &&
-           cmd->scan_begin_src != TRIG_EXT &&
-           cmd->scan_begin_src != TRIG_TIMER)
-               err++;
-       if (cmd->stop_src != TRIG_COUNT && cmd->stop_src != TRIG_NONE)
-               err++;
+       /* Step 2a : make sure trigger sources are unique */
+
+       err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
+       err |= cfc_check_trigger_is_unique(cmd->stop_src);
+
+       /* Step 2b : and mutually compatible */
 
        if (err)
                return 2;