Messages in this thread Patch in this message | | | Subject | [PATCH 13/14] fix v4l1 backward compatibility in saa7146 driver | Date | Wed, 8 Oct 2003 15:29:00 +0200 | From | Michael Hunold (LinuxTV.org CVS maintainer) <> |
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- [DVB] fix VIDIOC_S_FBUF for v4l1 backward compatility with xfree86 / v4l_drv diff -uNrwB --new-file -uraN linux-2.6.0-test6/drivers/media/common/saa7146_video.c linux-2.6.0-test6-cvs/drivers/media/common/saa7146_video.c --- linux-2.6.0-test6/drivers/media/common/saa7146_video.c 2003-10-01 12:25:26.000000000 +0200 +++ linux-2.6.0-test6-cvs/drivers/media/common/saa7146_video.c 2003-09-30 19:15:11.000000000 +0200 @@ -904,6 +904,8 @@ { struct v4l2_framebuffer *fb = arg; struct saa7146_format *fmt; + struct saa7146_fh *ov_fh = NULL; + int restart_overlay = 0; DEB_EE(("VIDIOC_S_FBUF\n")); @@ -913,10 +915,6 @@ return -EPERM; } */ - if( 0 != vv->ov_data ) { - DEB_D(("VIDIOC_S_FBUF: overlay is active.\n")); - return -EPERM; - } /* check args */ fmt = format_by_fourcc(dev,fb->fmt.pixelformat); @@ -924,12 +922,27 @@ return -EINVAL; } + down(&dev->lock); + + if( vv->ov_data != NULL ) { + ov_fh = vv->ov_data->fh; + saa7146_stop_preview(ov_fh); + restart_overlay = 1; + } + /* ok, accept it */ vv->ov_fb = *fb; vv->ov_fmt = fmt; if (0 == vv->ov_fb.fmt.bytesperline) vv->ov_fb.fmt.bytesperline = vv->ov_fb.fmt.width*fmt->depth/8; + + if( 0 != restart_overlay ) { + saa7146_start_preview(ov_fh); + } + + up(&dev->lock); + return 0; } case VIDIOC_ENUM_FMT: - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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