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

   1 From b1d7e2e6a94018681fe027edbe90038727c6d169 Mon Sep 17 00:00:00 2001
   2 From: Dave Stevenson <dave.stevenson@raspberrypi.com>
   3 Date: Tue, 7 Jul 2020 11:23:48 +0100
   4 Subject: [PATCH] media: i2c: imx290: Add support for g_selection to
   5  report cropping
   6
   7 Userspace needs to know the cropping arrangements for each mode,
   8 so expose this through g_selection.
   9
  10 Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
  11 ---
  12  drivers/media/i2c/imx290.c | 84 ++++++++++++++++++++++++++++++++++++++
  13  1 file changed, 84 insertions(+)
  14
  15 --- a/drivers/media/i2c/imx290.c
  16 +++ b/drivers/media/i2c/imx290.c
  17 @@ -61,6 +61,13 @@ enum imx290_clk_index {
  18  #define IMX290_PGCTRL_THRU BIT(1)
  19  #define IMX290_PGCTRL_MODE(n) ((n) << 4)
  20
  21 +#define IMX290_NATIVE_WIDTH            1945U
  22 +#define IMX290_NATIVE_HEIGHT           1109U
  23 +#define IMX290_PIXEL_ARRAY_LEFT                4U
  24 +#define IMX290_PIXEL_ARRAY_TOP         12U
  25 +#define IMX290_PIXEL_ARRAY_WIDTH       1937U
  26 +#define IMX290_PIXEL_ARRAY_HEIGHT      1097U
  27 +
  28  static const char * const imx290_supply_name[] = {
  29         "vdda",
  30         "vddd",
  31 @@ -80,6 +87,7 @@ struct imx290_mode {
  32         u32 hmax;
  33         u32 vmax;
  34         u8 link_freq_index;
  35 +       struct v4l2_rect crop;
  36
  37         const struct imx290_regval *data;
  38         u32 data_size;
  39 @@ -384,6 +392,12 @@ static const struct imx290_mode imx290_m
  40                 .hmax = 0x1130,
  41                 .vmax = 0x0465,
  42                 .link_freq_index = FREQ_INDEX_1080P,
  43 +               .crop = {
  44 +                       .left = 4 + 8,
  45 +                       .top = 12 + 8,
  46 +                       .width = 1920,
  47 +                       .height = 1080,
  48 +               },
  49                 .data = imx290_1080p_settings,
  50                 .data_size = ARRAY_SIZE(imx290_1080p_settings),
  51                 .clk_data = {
  52 @@ -398,6 +412,12 @@ static const struct imx290_mode imx290_m
  53                 .hmax = 0x19c8,
  54                 .vmax = 0x02ee,
  55                 .link_freq_index = FREQ_INDEX_720P,
  56 +               .crop = {
  57 +                       .left = 4 + 8 + 320,
  58 +                       .top = 12 + 8 + 180,
  59 +                       .width = 1280,
  60 +                       .height = 720,
  61 +               },
  62                 .data = imx290_720p_settings,
  63                 .data_size = ARRAY_SIZE(imx290_720p_settings),
  64                 .clk_data = {
  65 @@ -415,6 +435,12 @@ static const struct imx290_mode imx290_m
  66                 .hmax = 0x0898,
  67                 .vmax = 0x0465,
  68                 .link_freq_index = FREQ_INDEX_1080P,
  69 +               .crop = {
  70 +                       .left = 4 + 8,
  71 +                       .top = 12 + 8,
  72 +                       .width = 1920,
  73 +                       .height = 1080,
  74 +               },
  75                 .data = imx290_1080p_settings,
  76                 .data_size = ARRAY_SIZE(imx290_1080p_settings),
  77                 .clk_data = {
  78 @@ -429,6 +455,12 @@ static const struct imx290_mode imx290_m
  79                 .hmax = 0x0ce4,
  80                 .vmax = 0x02ee,
  81                 .link_freq_index = FREQ_INDEX_720P,
  82 +               .crop = {
  83 +                       .left = 4 + 8 + 320,
  84 +                       .top = 12 + 8 + 180,
  85 +                       .width = 1280,
  86 +                       .height = 720,
  87 +               },
  88                 .data = imx290_720p_settings,
  89                 .data_size = ARRAY_SIZE(imx290_720p_settings),
  90                 .clk_data = {
  91 @@ -875,6 +907,57 @@ static int imx290_write_current_format(s
  92         return 0;
  93  }
  94
  95 +static const struct v4l2_rect *
  96 +__imx290_get_pad_crop(struct imx290 *imx290, struct v4l2_subdev_pad_config *cfg,
  97 +                     unsigned int pad, enum v4l2_subdev_format_whence which)
  98 +{
  99 +       switch (which) {
 100 +       case V4L2_SUBDEV_FORMAT_TRY:
 101 +               return v4l2_subdev_get_try_crop(&imx290->sd, cfg, pad);
 102 +       case V4L2_SUBDEV_FORMAT_ACTIVE:
 103 +               return &imx290->current_mode->crop;
 104 +       }
 105 +
 106 +       return NULL;
 107 +}
 108 +
 109 +static int imx290_get_selection(struct v4l2_subdev *sd,
 110 +                               struct v4l2_subdev_pad_config *cfg,
 111 +                               struct v4l2_subdev_selection *sel)
 112 +{
 113 +       switch (sel->target) {
 114 +       case V4L2_SEL_TGT_CROP: {
 115 +               struct imx290 *imx290 = to_imx290(sd);
 116 +
 117 +               mutex_lock(&imx290->lock);
 118 +               sel->r = *__imx290_get_pad_crop(imx290, cfg, sel->pad,
 119 +                                               sel->which);
 120 +               mutex_unlock(&imx290->lock);
 121 +
 122 +               return 0;
 123 +       }
 124 +
 125 +       case V4L2_SEL_TGT_NATIVE_SIZE:
 126 +               sel->r.top = 0;
 127 +               sel->r.left = 0;
 128 +               sel->r.width = IMX290_NATIVE_WIDTH;
 129 +               sel->r.height = IMX290_NATIVE_HEIGHT;
 130 +
 131 +               return 0;
 132 +
 133 +       case V4L2_SEL_TGT_CROP_DEFAULT:
 134 +       case V4L2_SEL_TGT_CROP_BOUNDS:
 135 +               sel->r.top = IMX290_PIXEL_ARRAY_TOP;
 136 +               sel->r.left = IMX290_PIXEL_ARRAY_LEFT;
 137 +               sel->r.width = IMX290_PIXEL_ARRAY_WIDTH;
 138 +               sel->r.height = IMX290_PIXEL_ARRAY_HEIGHT;
 139 +
 140 +               return 0;
 141 +       }
 142 +
 143 +       return -EINVAL;
 144 +}
 145 +
 146  /* Start streaming */
 147  static int imx290_start_streaming(struct imx290 *imx290)
 148  {
 149 @@ -1069,6 +1152,7 @@ static const struct v4l2_subdev_pad_ops
 150         .enum_frame_size = imx290_enum_frame_size,
 151         .get_fmt = imx290_get_fmt,
 152         .set_fmt = imx290_set_fmt,
 153 +       .get_selection = imx290_get_selection,
 154  };
 155
 156  static const struct v4l2_subdev_ops imx290_subdev_ops = {