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media: rockchip: hdmirx: add timing validity judgment

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Signed-off-by: Dingxian Wen <shawn.wen@rock-chips.com>
Change-Id: I11cfb328dc37c5239e2557460dd99f471d23a52b
This commit is contained in:
Dingxian Wen
2022-05-06 16:11:13 +08:00
committed by Tao Huang
parent ae854e6b5d
commit c231756164
1 changed files with 25 additions and 6 deletions
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31
drivers/media/platform/rockchip/hdmirx/rk_hdmirx.c
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@@ -594,15 +594,36 @@ static void hdmirx_get_timings(struct rk_hdmirx_dev *hdmirx_dev,
v4l2_dbg(1, debug, v4l2_dev, "get timings from %s\n", from_dma ? "dma" : "ctrl");
v4l2_dbg(1, debug, v4l2_dev,
"act:%dx%d, total:%dx%d, fps:%d, pixclk:%llu\n",
"act:%ux%u, total:%ux%u, fps:%u, pixclk:%llu\n",
bt->width, bt->height, htotal, vtotal, fps, bt->pixelclock);
v4l2_dbg(2, debug, v4l2_dev,
"hfp:%d, hs:%d, hbp:%d, vfp:%d, vs:%d, vbp:%d\n",
"hfp:%u, hs:%u, hbp:%u, vfp:%u, vs:%u, vbp:%u\n",
bt->hfrontporch, bt->hsync, bt->hbackporch,
bt->vfrontporch, bt->vsync, bt->vbackporch);
}
static bool hdmirx_check_timing_valid(struct v4l2_bt_timings *bt)
{
if (bt->width < 100 || bt->width > 5000 ||
bt->height < 100 || bt->height > 5000)
return false;
if (bt->hsync == 0 || bt->hsync > 200 ||
bt->vsync == 0 || bt->vsync > 100)
return false;
if (bt->hbackporch == 0 || bt->hbackporch > 2000 ||
bt->vbackporch == 0 || bt->vbackporch > 2000)
return false;
if (bt->hfrontporch == 0 || bt->hfrontporch > 2000 ||
bt->vfrontporch == 0 || bt->vfrontporch > 2000)
return false;
return true;
}
static int hdmirx_get_detected_timings(struct rk_hdmirx_dev *hdmirx_dev,
struct v4l2_dv_timings *timings, bool from_dma)
{
@@ -639,16 +660,14 @@ static int hdmirx_get_detected_timings(struct rk_hdmirx_dev *hdmirx_dev,
bt->il_vsync = bt->vsync + 1;
}
v4l2_dbg(2, debug, v4l2_dev, "tmds_clk:%lld\n", tmds_clk);
v4l2_dbg(2, debug, v4l2_dev, "tmds_clk:%llu\n", tmds_clk);
v4l2_dbg(1, debug, v4l2_dev, "interlace:%d, fmt:%d, vic:%d, color:%d, mode:%s\n",
bt->interlaced, hdmirx_dev->pix_fmt,
hdmirx_dev->cur_vic, hdmirx_dev->color_depth,
hdmirx_dev->is_dvi_mode ? "dvi" : "hdmi");
v4l2_dbg(2, debug, v4l2_dev, "deframer_st:%#x\n", deframer_st);
if (bt->hsync > 200 || bt->vsync > 100 ||
bt->hbackporch > 1000 || bt->vbackporch > 1000 ||
bt->width < 100 || bt->height < 100)
if (!hdmirx_check_timing_valid(bt))
return -EINVAL;
return 0;