From: Trent Piepho Date: Tue, 17 Jul 2007 21:29:42 +0000 (-0300) Subject: V4L/DVB (5886): zr36067: Fix problem setting norms X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=c812b67ca4ed13fa5ec60f06c4ed8f648722a186;p=linux-beck.git V4L/DVB (5886): zr36067: Fix problem setting norms The zr36067 driver doesn't make a distinction between the different sub-types of NTSC, PAL, or SECAM norms. For example, when the enum std ioctl returns the PAL standard it returns PAL_BG|PAL_DK|PAL_H|PAL_I. When setting the norm, it required the bitmask to match exactly the set of norms used during the enumeration. If just one norm was specified, for example PAL_BG or NTSC_M, it would fail. This violates the V4L2 spec, "VIDIOC_S_STD accepts *one* or more flags..." The key thing to realize is that V4L2_STD_PAL is not one bit, it is multiple bits. It's ok to call S_STD with any *one* of those bits, but the driver was requiring *all* of them. This fixes the S_STD function so that it will accept any set of one or more PAL norms as PAL, and the same for NTSC and SECAM. Signed-off-by: Trent Piepho Acked-by: Ronald S. Bultje Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/video/zoran_driver.c b/drivers/media/video/zoran_driver.c index 17118a490f81..fac97cb5a828 100644 --- a/drivers/media/video/zoran_driver.c +++ b/drivers/media/video/zoran_driver.c @@ -3704,11 +3704,11 @@ zoran_do_ioctl (struct inode *inode, dprintk(3, KERN_DEBUG "%s: VIDIOC_S_STD - norm=0x%llx\n", ZR_DEVNAME(zr), (unsigned long long)*std); - if (*std == V4L2_STD_PAL) + if ((*std & V4L2_STD_PAL) && !(*std & ~V4L2_STD_PAL)) norm = VIDEO_MODE_PAL; - else if (*std == V4L2_STD_NTSC) + else if ((*std & V4L2_STD_NTSC) && !(*std & ~V4L2_STD_NTSC)) norm = VIDEO_MODE_NTSC; - else if (*std == V4L2_STD_SECAM) + else if ((*std & V4L2_STD_SECAM) && !(*std & ~V4L2_STD_SECAM)) norm = VIDEO_MODE_SECAM; else if (*std == V4L2_STD_ALL) norm = VIDEO_MODE_AUTO;