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

   1 From f1a8ae8064a65846489386fe95790900fb150242 Mon Sep 17 00:00:00 2001
   2 From: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
   3 Date: Fri, 12 Jun 2020 15:53:51 +0200
   4 Subject: [PATCH] media: i2c: imx290: Add support for test pattern
   5  generation
   6
   7 Commit a58df1f9e4885eaf3d0663574a217e513821a9f0 upstream.
   8
   9 Add support for generating following test patterns by IMX290:
  10
  11 * Sequence Pattern 1
  12 * Horizontal Color-bar Chart
  13 * Vertical Color-bar Chart
  14 * Sequence Pattern 2
  15 * Gradation Pattern 1
  16 * Gradation Pattern 2
  17 * 000/555h Toggle Pattern
  18
  19 Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
  20 Signed-off-by: Andrey Konovalov <andrey.konovalov@linaro.org>
  21 Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
  22 Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
  23 ---
  24  drivers/media/i2c/imx290.c | 41 +++++++++++++++++++++++++++++++++++++-
  25  1 file changed, 40 insertions(+), 1 deletion(-)
  26
  27 --- a/drivers/media/i2c/imx290.c
  28 +++ b/drivers/media/i2c/imx290.c
  29 @@ -26,12 +26,19 @@
  30  #define IMX290_REGHOLD 0x3001
  31  #define IMX290_XMSTA 0x3002
  32  #define IMX290_FR_FDG_SEL 0x3009
  33 +#define IMX290_BLKLEVEL_LOW 0x300a
  34 +#define IMX290_BLKLEVEL_HIGH 0x300b
  35  #define IMX290_GAIN 0x3014
  36  #define IMX290_HMAX_LOW 0x301c
  37  #define IMX290_HMAX_HIGH 0x301d
  38 +#define IMX290_PGCTRL 0x308c
  39  #define IMX290_PHY_LANE_NUM 0x3407
  40  #define IMX290_CSI_LANE_MODE 0x3443
  41
  42 +#define IMX290_PGCTRL_REGEN BIT(0)
  43 +#define IMX290_PGCTRL_THRU BIT(1)
  44 +#define IMX290_PGCTRL_MODE(n) ((n) << 4)
  45 +
  46  static const char * const imx290_supply_name[] = {
  47         "vdda",
  48         "vddd",
  49 @@ -91,6 +98,17 @@ static const struct regmap_config imx290
  50         .cache_type = REGCACHE_RBTREE,
  51  };
  52
  53 +static const char * const imx290_test_pattern_menu[] = {
  54 +       "Disabled",
  55 +       "Sequence Pattern 1",
  56 +       "Horizontal Color-bar Chart",
  57 +       "Vertical Color-bar Chart",
  58 +       "Sequence Pattern 2",
  59 +       "Gradation Pattern 1",
  60 +       "Gradation Pattern 2",
  61 +       "000/555h Toggle Pattern",
  62 +};
  63 +
  64  static const struct imx290_regval imx290_global_init_settings[] = {
  65         { 0x3007, 0x00 },
  66         { 0x3018, 0x65 },
  67 @@ -448,6 +466,22 @@ static int imx290_set_ctrl(struct v4l2_c
  68         case V4L2_CID_GAIN:
  69                 ret = imx290_set_gain(imx290, ctrl->val);
  70                 break;
  71 +       case V4L2_CID_TEST_PATTERN:
  72 +               if (ctrl->val) {
  73 +                       imx290_write_reg(imx290, IMX290_BLKLEVEL_LOW, 0x00);
  74 +                       imx290_write_reg(imx290, IMX290_BLKLEVEL_HIGH, 0x00);
  75 +                       msleep(10);
  76 +                       imx290_write_reg(imx290, IMX290_PGCTRL,
  77 +                                        (u8)(IMX290_PGCTRL_REGEN |
  78 +                                        IMX290_PGCTRL_THRU |
  79 +                                        IMX290_PGCTRL_MODE(ctrl->val)));
  80 +               } else {
  81 +                       imx290_write_reg(imx290, IMX290_PGCTRL, 0x00);
  82 +                       msleep(10);
  83 +                       imx290_write_reg(imx290, IMX290_BLKLEVEL_LOW, 0x3c);
  84 +                       imx290_write_reg(imx290, IMX290_BLKLEVEL_HIGH, 0x00);
  85 +               }
  86 +               break;
  87         default:
  88                 ret = -EINVAL;
  89                 break;
  90 @@ -959,7 +993,7 @@ static int imx290_probe(struct i2c_clien
  91          */
  92         imx290_entity_init_cfg(&imx290->sd, NULL);
  93
  94 -       v4l2_ctrl_handler_init(&imx290->ctrls, 3);
  95 +       v4l2_ctrl_handler_init(&imx290->ctrls, 4);
  96
  97         v4l2_ctrl_new_std(&imx290->ctrls, &imx290_ctrl_ops,
  98                           V4L2_CID_GAIN, 0, 72, 1, 0);
  99 @@ -977,6 +1011,11 @@ static int imx290_probe(struct i2c_clien
 100                                                1, INT_MAX, 1,
 101                                                imx290_calc_pixel_rate(imx290));
 102
 103 +       v4l2_ctrl_new_std_menu_items(&imx290->ctrls, &imx290_ctrl_ops,
 104 +                                    V4L2_CID_TEST_PATTERN,
 105 +                                    ARRAY_SIZE(imx290_test_pattern_menu) - 1,
 106 +                                    0, 0, imx290_test_pattern_menu);
 107 +
 108         imx290->sd.ctrl_handler = &imx290->ctrls;
 109
 110         if (imx290->ctrls.error) {