Guennadi,
> mt9m111->rect.left = MT9M111_MIN_DARK_COLS;
> mt9m111->rect.top = MT9M111_MIN_DARK_ROWS;
>diff --git a/drivers/media/video/mt9t031.c b/drivers/media/video/mt9t031.c
>index 6966f64..57e04e9 100644
>--- a/drivers/media/video/mt9t031.c
>+++ b/drivers/media/video/mt9t031.c
>@@ -301,9 +301,9 @@ static int mt9t031_set_params(struct soc_camera_device
>*icd,
> ret = reg_write(client, MT9T031_WINDOW_WIDTH, rect->width - 1);
> if (ret >= 0)
> ret = reg_write(client, MT9T031_WINDOW_HEIGHT,
>- rect->height + icd->y_skip_top - 1);
>+ rect->height - 1);
Why y_skip_top is removed? When I connect the sensor output to our SOC input
and do format conversion and resize on the fly (frame by frame conversion
before writing to SDRAM) I have found that the frame completion interrupt fails
to get generated with zero value for y_skip_top. I have used a value
of 10 and it worked fine for me. So I would like to have a s_skip_top_lines()
in the sensor operations which can be called to update
this value from the host/bridge driver.
> if (ret >= 0 && mt9t031->autoexposure) {
>- unsigned int total_h = rect->height + icd->y_skip_top + vblank;
>+ unsigned int total_h = rect->height + vblank;
> ret = set_shutter(client, total_h);
> if (ret >= 0) {
> const u32 shutter_max = MT9T031_MAX_HEIGHT + vblank;
>@@ -656,8 +656,7 @@ static int mt9t031_s_ctrl(struct v4l2_subdev *sd,
>struct v4l2_control *ctrl)
> if (ctrl->value) {
> const u16 vblank = MT9T031_VERTICAL_BLANK;
> const u32 shutter_max = MT9T031_MAX_HEIGHT + vblank;
>- unsigned int total_h = mt9t031->rect.height +
>- icd->y_skip_top + vblank;
>+ unsigned int total_h = mt9t031->rect.height + vblank;
>
> if (set_shutter(client, total_h) < 0)
> return -EIO;
>@@ -773,7 +772,6 @@ static int mt9t031_probe(struct i2c_client *client,
>
> /* Second stage probe - when a capture adapter is there */
> icd->ops = &mt9t031_ops;
>- icd->y_skip_top = 0;
>
> mt9t031->rect.left = MT9T031_COLUMN_SKIP;
> mt9t031->rect.top = MT9T031_ROW_SKIP;
>diff --git a/drivers/media/video/mt9v022.c b/drivers/media/video/mt9v022.c
>index 995607f..b71898f 100644
>--- a/drivers/media/video/mt9v022.c
>+++ b/drivers/media/video/mt9v022.c
>@@ -97,6 +97,7 @@ struct mt9v022 {
> __u32 fourcc;
> int model; /* V4L2_IDENT_MT9V022* codes from v4l2-chip-ident.h */
> u16 chip_control;
>+ unsigned short y_skip_top; /* Lines to skip at the top */
> };
>
> static struct mt9v022 *to_mt9v022(const struct i2c_client *client)
>@@ -265,7 +266,6 @@ static int mt9v022_s_crop(struct v4l2_subdev *sd,
>struct v4l2_crop *a)
> struct i2c_client *client = sd->priv;
> struct mt9v022 *mt9v022 = to_mt9v022(client);
> struct v4l2_rect rect = a->c;
>- struct soc_camera_device *icd = client->dev.platform_data;
> int ret;
>
> /* Bayer format - even size lengths */
>@@ -287,10 +287,10 @@ static int mt9v022_s_crop(struct v4l2_subdev *sd,
>struct v4l2_crop *a)
> if (ret >= 0) {
> if (ret & 1) /* Autoexposure */
> ret = reg_write(client, MT9V022_MAX_TOTAL_SHUTTER_WIDTH,
>- rect.height + icd->y_skip_top + 43);
>+ rect.height + mt9v022->y_skip_top + 43);
> else
> ret = reg_write(client, MT9V022_TOTAL_SHUTTER_WIDTH,
>- rect.height + icd->y_skip_top + 43);
>+ rect.height + mt9v022->y_skip_top + 43);
> }
> /* Setup frame format: defaults apart from width and height */
> if (!ret)
>@@ -309,7 +309,7 @@ static int mt9v022_s_crop(struct v4l2_subdev *sd,
>struct v4l2_crop *a)
> ret = reg_write(client, MT9V022_WINDOW_WIDTH, rect.width);
> if (!ret)
> ret = reg_write(client, MT9V022_WINDOW_HEIGHT,
>- rect.height + icd->y_skip_top);
>+ rect.height + mt9v022->y_skip_top);
>
> if (ret < 0)
> return ret;
>@@ -410,15 +410,15 @@ static int mt9v022_s_fmt(struct v4l2_subdev *sd,
>struct v4l2_format *f)
> static int mt9v022_try_fmt(struct v4l2_subdev *sd, struct v4l2_format *f)
> {
> struct i2c_client *client = sd->priv;
>- struct soc_camera_device *icd = client->dev.platform_data;
>+ struct mt9v022 *mt9v022 = to_mt9v022(client);
> struct v4l2_pix_format *pix = &f->fmt.pix;
> int align = pix->pixelformat == V4L2_PIX_FMT_SBGGR8 ||
> pix->pixelformat == V4L2_PIX_FMT_SBGGR16;
>
> v4l_bound_align_image(&pix->width, MT9V022_MIN_WIDTH,
> MT9V022_MAX_WIDTH, align,
>- &pix->height, MT9V022_MIN_HEIGHT + icd->y_skip_top,
>- MT9V022_MAX_HEIGHT + icd->y_skip_top, align, 0);
>+ &pix->height, MT9V022_MIN_HEIGHT + mt9v022->y_skip_top,
>+ MT9V022_MAX_HEIGHT + mt9v022->y_skip_top, align, 0);
>
> return 0;
> }
>@@ -787,6 +787,16 @@ static void mt9v022_video_remove(struct
>soc_camera_device *icd)
> icl->free_bus(icl);
> }
>
>+static int mt9v022_g_skip_top_lines(struct v4l2_subdev *sd, u32 *lines)
>+{
>+ struct i2c_client *client = sd->priv;
>+ struct mt9v022 *mt9v022 = to_mt9v022(client);
>+
>+ *lines = mt9v022->y_skip_top;
>+
>+ return 0;
>+}
>+
> static struct v4l2_subdev_core_ops mt9v022_subdev_core_ops = {
> .g_ctrl = mt9v022_g_ctrl,
> .s_ctrl = mt9v022_s_ctrl,
>@@ -807,9 +817,14 @@ static struct v4l2_subdev_video_ops
>mt9v022_subdev_video_ops = {
> .cropcap = mt9v022_cropcap,
> };
>
>+static struct v4l2_subdev_sensor_ops mt9v022_subdev_sensor_ops = {
>+ .g_skip_top_lines = mt9v022_g_skip_top_lines,
>+};
>+
> static struct v4l2_subdev_ops mt9v022_subdev_ops = {
> .core = &mt9v022_subdev_core_ops,
> .video = &mt9v022_subdev_video_ops,
>+ .sensor = &mt9v022_subdev_sensor_ops,
> };
>
> static int mt9v022_probe(struct i2c_client *client,
>@@ -851,8 +866,7 @@ static int mt9v022_probe(struct i2c_client *client,
> * MT9V022 _really_ corrupts the first read out line.
> * TODO: verify on i.MX31
> */
>- icd->y_skip_top = 1;
>-
>+ mt9v022->y_skip_top = 1;
> mt9v022->rect.left = MT9V022_COLUMN_SKIP;
> mt9v022->rect.top = MT9V022_ROW_SKIP;
> mt9v022->rect.width = MT9V022_MAX_WIDTH;
>diff --git a/drivers/media/video/pxa_camera.c
>b/drivers/media/video/pxa_camera.c
>index 51b683c..4df09a6 100644
>--- a/drivers/media/video/pxa_camera.c
>+++ b/drivers/media/video/pxa_camera.c
>@@ -1051,8 +1051,13 @@ static void pxa_camera_setup_cicr(struct
>soc_camera_device *icd,
> {
> struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
> struct pxa_camera_dev *pcdev = ici->priv;
>+ struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
> unsigned long dw, bpp;
>- u32 cicr0, cicr1, cicr2, cicr3, cicr4 = 0;
>+ u32 cicr0, cicr1, cicr2, cicr3, cicr4 = 0, y_skip_top;
>+ int ret = v4l2_subdev_call(sd, sensor, g_skip_top_lines,
>&y_skip_top);
>+
>+ if (ret < 0)
>+ y_skip_top = 0;
>
> /* Datawidth is now guaranteed to be equal to one of the three values.
> * We fix bit-per-pixel equal to data-width... */
>@@ -1118,7 +1123,7 @@ static void pxa_camera_setup_cicr(struct
>soc_camera_device *icd,
>
> cicr2 = 0;
> cicr3 = CICR3_LPF_VAL(icd->user_height - 1) |
>- CICR3_BFW_VAL(min((unsigned short)255, icd->y_skip_top));
>+ CICR3_BFW_VAL(min((u32)255, y_skip_top));
> cicr4 |= pcdev->mclk_divisor;
>
> __raw_writel(cicr1, pcdev->base + CICR1);
>diff --git a/drivers/media/video/soc_camera_platform.c
>b/drivers/media/video/soc_camera_platform.c
>index b6a575c..c7c9151 100644
>--- a/drivers/media/video/soc_camera_platform.c
>+++ b/drivers/media/video/soc_camera_platform.c
>@@ -128,7 +128,6 @@ static int soc_camera_platform_probe(struct
>platform_device *pdev)
> /* Set the control device reference */
> dev_set_drvdata(&icd->dev, &pdev->dev);
>
>- icd->y_skip_top = 0;
> icd->ops = &soc_camera_platform_ops;
>
> ici = to_soc_camera_host(icd->dev.parent);
>diff --git a/include/media/soc_camera.h b/include/media/soc_camera.h
>index c5afc8c..218639f 100644
>--- a/include/media/soc_camera.h
>+++ b/include/media/soc_camera.h
>@@ -24,7 +24,6 @@ struct soc_camera_device {
> struct device *pdev; /* Platform device */
> s32 user_width;
> s32 user_height;
>- unsigned short y_skip_top; /* Lines to skip at the top */
> unsigned char iface; /* Host number */
> unsigned char devnum; /* Device number per host */
> unsigned char buswidth; /* See comment in .c */
>diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h
>index d411345..04193eb 100644
>--- a/include/media/v4l2-subdev.h
>+++ b/include/media/v4l2-subdev.h
>@@ -227,8 +227,20 @@ struct v4l2_subdev_video_ops {
> int (*s_crop)(struct v4l2_subdev *sd, struct v4l2_crop *crop);
> int (*g_parm)(struct v4l2_subdev *sd, struct v4l2_streamparm *param);
> int (*s_parm)(struct v4l2_subdev *sd, struct v4l2_streamparm *param);
>+};
>+
>+/**
>+ * struct v4l2_subdev_sensor_ops - v4l2-subdev sensor operations
>+ * @enum_framesizes: enumerate supported framesizes
>+ * @enum_frameintervals: enumerate supported frame format intervals
>+ * @g_skip_top_lines: number of lines at the top of the image to be
>skipped.
>+ * This is needed for some sensors, that always corrupt
>+ * several top lines of the output image.
>+ */
>+struct v4l2_subdev_sensor_ops {
> int (*enum_framesizes)(struct v4l2_subdev *sd, struct
>v4l2_frmsizeenum *fsize);
> int (*enum_frameintervals)(struct v4l2_subdev *sd, struct
>v4l2_frmivalenum *fival);
>+ int (*g_skip_top_lines)(struct v4l2_subdev *sd, u32 *lines);
> };
>
> struct v4l2_subdev_ops {
>@@ -236,6 +248,7 @@ struct v4l2_subdev_ops {
> const struct v4l2_subdev_tuner_ops *tuner;
> const struct v4l2_subdev_audio_ops *audio;
> const struct v4l2_subdev_video_ops *video;
>+ const struct v4l2_subdev_sensor_ops *sensor;
> };
>
> #define V4L2_SUBDEV_NAME_SIZE 32
>--
>1.6.2.4
>
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