From 37bced38b3d09c3de7c871790eddde81a3ce57cb Mon Sep 17 00:00:00 2001 From: Eric Hustvedt Date: Tue, 20 Jun 2006 14:36:42 -0400 Subject: intelfb: add vsync interrupt support [04/05] intelfb: implement FBIO_WAITFORVSYNC ioctl The (unofficial) FBIO_WAITFORVSYNC ioctl is implemented by sleeping on the appropriate waitqueue, as defined in my earlier patch. Currently, only display 0 (aka pipe A) is supported. Signed-off-by: Eric Hustvedt --- drivers/video/intelfb/intelfbdrv.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'drivers/video/intelfb/intelfbdrv.c') diff --git a/drivers/video/intelfb/intelfbdrv.c b/drivers/video/intelfb/intelfbdrv.c index 068c56d4e65..08f8241bb92 100644 --- a/drivers/video/intelfb/intelfbdrv.c +++ b/drivers/video/intelfb/intelfbdrv.c @@ -1473,6 +1473,19 @@ static int intelfb_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg) { int retval = 0; + struct intelfb_info *dinfo = GET_DINFO(info); + u32 pipe = 0; + + switch (cmd) { + case FBIO_WAITFORVSYNC: + if (get_user(pipe, (__u32 __user *)arg)) + return -EFAULT; + + retval = intelfbhw_wait_for_vsync(dinfo, pipe); + break; + default: + break; + } return retval; } -- cgit