introduce open_hw() function

probe_hw opens the hardware in the order we want it:
first try devname, if this is NULL then try the KMSDEVICE
environment variable and as a last fallback use "/dev/dri/card0".
Instead of implementing the same code again when really opening
the device move the code to a open_hw() function and let probe_hw
use it.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Sascha Hauer 2012-03-03 14:09:24 +01:00 committed by Dave Airlie
parent aa6ceaaa84
commit 456a001e3f

View File

@ -174,7 +174,7 @@ Identify(int flags)
Chipsets);
}
static Bool probe_hw(char *dev)
static int open_hw(char *dev)
{
int fd;
if (dev)
@ -186,13 +186,20 @@ static Bool probe_hw(char *dev)
fd = open(dev,O_RDWR, 0);
}
}
if (fd == -1) {
if (fd == -1)
xf86DrvMsg(-1, X_ERROR,"open %s: %s\n", dev, strerror(errno));
return FALSE;
}
close(fd);
return TRUE;
return fd;
}
static Bool probe_hw(char *dev)
{
int fd = open_hw(dev);
if (fd != -1) {
close(fd);
return TRUE;
}
return FALSE;
}
static const OptionInfoRec *