From: Mike Isely Date: Tue, 8 Aug 2006 12:10:07 +0000 (-0300) Subject: V4L/DVB (4375): Eliminate hardcoded limits in VIDIOC_[S|TRY]_FMT for pvrusb2 X-Git-Tag: v2.6.19-rc1~643^2~151 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e95a191566685530ef49b702bbce0a33c57c3136;p=linux-2.6 V4L/DVB (4375): Eliminate hardcoded limits in VIDIOC_[S|TRY]_FMT for pvrusb2 The pvrusb2 implementation for VIDIOC_[S|TRY]_FMT was hardcoding limits on the range for allowed resolution, but it would be much better if we instead just queried the internal control for these values. This then opens the door for the driver to adjust these limits based on the detected hardware. Signed-off-by: Mike Isely Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/video/pvrusb2/pvrusb2-v4l2.c b/drivers/media/video/pvrusb2/pvrusb2-v4l2.c index 0caf70b8c0..5f5438aca1 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-v4l2.c +++ b/drivers/media/video/pvrusb2/pvrusb2-v4l2.c @@ -459,18 +459,26 @@ static int pvr2_v4l2_do_ioctl(struct inode *inode, struct file *file, ret = 0; switch(vf->type) { case V4L2_BUF_TYPE_VIDEO_CAPTURE: { + int lmin,lmax; + struct pvr2_ctrl *hcp,*vcp; int h = vf->fmt.pix.height; int w = vf->fmt.pix.width; - - if (h < 200) { - h = 200; - } else if (h > 625) { - h = 625; + hcp = pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_HRES); + vcp = pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_VRES); + + lmin = pvr2_ctrl_get_min(hcp); + lmax = pvr2_ctrl_get_max(hcp); + if (h < lmin) { + h = lmin; + } else if (h > lmax) { + h = lmax; } - if (w < 320) { - w = 320; - } else if (w > 720) { - w = 720; + lmin = pvr2_ctrl_get_min(vcp); + lmax = pvr2_ctrl_get_max(vcp); + if (w < lmin) { + w = lmin; + } else if (w > lmax) { + w = lmax; } memcpy(vf, &pvr_format[PVR_FORMAT_PIX], @@ -479,14 +487,8 @@ static int pvr2_v4l2_do_ioctl(struct inode *inode, struct file *file, vf->fmt.pix.height = h; if (cmd == VIDIOC_S_FMT) { - pvr2_ctrl_set_value( - pvr2_hdw_get_ctrl_by_id(hdw, - PVR2_CID_HRES), - vf->fmt.pix.width); - pvr2_ctrl_set_value( - pvr2_hdw_get_ctrl_by_id(hdw, - PVR2_CID_VRES), - vf->fmt.pix.height); + pvr2_ctrl_set_value(hcp,vf->fmt.pix.width); + pvr2_ctrl_set_value(vcp,vf->fmt.pix.height); } } break; case V4L2_BUF_TYPE_VBI_CAPTURE: