git.openwrt.org Git - openwrt/staging/neocturne.git/blob

   1 From eefa9ce2af54be4a6fa33add2c3d0ddac2739622 Mon Sep 17 00:00:00 2001
   2 From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
   3 Date: Sun, 16 Oct 2022 09:15:18 +0300
   4 Subject: [PATCH] media: i2c: imx290: Implement HBLANK and VBLANK
   5  controls
   6
   7 Upstream commit 0c3b56c905e3.
   8
   9 Add support for the V4L2_CID_HBLANK and V4L2_CID_VBLANK controls to the
  10 imx290 driver. Make the controls read-only to start with, to report the
  11 values to userspace for timing calculation.
  12
  13 Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
  14 Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
  15 ---
  16  drivers/media/i2c/imx290.c | 33 ++++++++++++++++++++++++++++++++-
  17  1 file changed, 32 insertions(+), 1 deletion(-)
  18
  19 --- a/drivers/media/i2c/imx290.c
  20 +++ b/drivers/media/i2c/imx290.c
  21 @@ -146,6 +146,8 @@ struct imx290 {
  22         struct v4l2_ctrl_handler ctrls;
  23         struct v4l2_ctrl *link_freq;
  24         struct v4l2_ctrl *pixel_rate;
  25 +       struct v4l2_ctrl *hblank;
  26 +       struct v4l2_ctrl *vblank;
  27
  28         struct mutex lock;
  29  };
  30 @@ -642,6 +644,20 @@ static int imx290_set_fmt(struct v4l2_su
  31                 if (imx290->pixel_rate)
  32                         __v4l2_ctrl_s_ctrl_int64(imx290->pixel_rate,
  33                                                  imx290_calc_pixel_rate(imx290));
  34 +
  35 +               if (imx290->hblank) {
  36 +                       unsigned int hblank = mode->hmax - mode->width;
  37 +
  38 +                       __v4l2_ctrl_modify_range(imx290->hblank, hblank, hblank,
  39 +                                                1, hblank);
  40 +               }
  41 +
  42 +               if (imx290->vblank) {
  43 +                       unsigned int vblank = IMX290_VMAX_DEFAULT - mode->height;
  44 +
  45 +                       __v4l2_ctrl_modify_range(imx290->vblank, vblank, vblank,
  46 +                                                1, vblank);
  47 +               }
  48         }
  49
  50         *format = fmt->format;
  51 @@ -880,9 +896,10 @@ static const struct media_entity_operati
  52
  53  static int imx290_ctrl_init(struct imx290 *imx290)
  54  {
  55 +       unsigned int blank;
  56         int ret;
  57
  58 -       v4l2_ctrl_handler_init(&imx290->ctrls, 5);
  59 +       v4l2_ctrl_handler_init(&imx290->ctrls, 7);
  60         imx290->ctrls.lock = &imx290->lock;
  61
  62         /*
  63 @@ -923,6 +940,20 @@ static int imx290_ctrl_init(struct imx29
  64                                      ARRAY_SIZE(imx290_test_pattern_menu) - 1,
  65                                      0, 0, imx290_test_pattern_menu);
  66
  67 +       blank = imx290->current_mode->hmax - imx290->current_mode->width;
  68 +       imx290->hblank = v4l2_ctrl_new_std(&imx290->ctrls, &imx290_ctrl_ops,
  69 +                                          V4L2_CID_HBLANK, blank, blank, 1,
  70 +                                          blank);
  71 +       if (imx290->hblank)
  72 +               imx290->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
  73 +
  74 +       blank = IMX290_VMAX_DEFAULT - imx290->current_mode->height;
  75 +       imx290->vblank = v4l2_ctrl_new_std(&imx290->ctrls, &imx290_ctrl_ops,
  76 +                                          V4L2_CID_VBLANK, blank, blank, 1,
  77 +                                          blank);
  78 +       if (imx290->vblank)
  79 +               imx290->vblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
  80 +
  81         imx290->sd.ctrl_handler = &imx290->ctrls;
  82
  83         if (imx290->ctrls.error) {