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path: root/drivers/media/video/mt9m111.c
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Diffstat (limited to 'drivers/media/video/mt9m111.c')
-rw-r--r--drivers/media/video/mt9m111.c112
1 files changed, 95 insertions, 17 deletions
diff --git a/drivers/media/video/mt9m111.c b/drivers/media/video/mt9m111.c
index 3637376da75..920dd53c4cf 100644
--- a/drivers/media/video/mt9m111.c
+++ b/drivers/media/video/mt9m111.c
@@ -194,7 +194,7 @@ static int mt9m111_reg_read(struct i2c_client *client, const u16 reg)
ret = reg_page_map_set(client, reg);
if (!ret)
- ret = swab16(i2c_smbus_read_word_data(client, (reg & 0xff)));
+ ret = swab16(i2c_smbus_read_word_data(client, reg & 0xff));
dev_dbg(&client->dev, "read reg.%03x -> %04x\n", reg, ret);
return ret;
@@ -257,8 +257,8 @@ static int mt9m111_setup_rect(struct i2c_client *client,
int width = rect->width;
int height = rect->height;
- if ((mt9m111->pixfmt == V4L2_PIX_FMT_SBGGR8)
- || (mt9m111->pixfmt == V4L2_PIX_FMT_SBGGR16))
+ if (mt9m111->pixfmt == V4L2_PIX_FMT_SBGGR8 ||
+ mt9m111->pixfmt == V4L2_PIX_FMT_SBGGR16)
is_raw_format = 1;
else
is_raw_format = 0;
@@ -395,23 +395,85 @@ static int mt9m111_set_bus_param(struct soc_camera_device *icd, unsigned long f)
return 0;
}
+static int mt9m111_make_rect(struct i2c_client *client,
+ struct v4l2_rect *rect)
+{
+ struct mt9m111 *mt9m111 = to_mt9m111(client);
+
+ if (mt9m111->pixfmt == V4L2_PIX_FMT_SBGGR8 ||
+ mt9m111->pixfmt == V4L2_PIX_FMT_SBGGR16) {
+ /* Bayer format - even size lengths */
+ rect->width = ALIGN(rect->width, 2);
+ rect->height = ALIGN(rect->height, 2);
+ /* Let the user play with the starting pixel */
+ }
+
+ /* FIXME: the datasheet doesn't specify minimum sizes */
+ soc_camera_limit_side(&rect->left, &rect->width,
+ MT9M111_MIN_DARK_COLS, 2, MT9M111_MAX_WIDTH);
+
+ soc_camera_limit_side(&rect->top, &rect->height,
+ MT9M111_MIN_DARK_ROWS, 2, MT9M111_MAX_HEIGHT);
+
+ return mt9m111_setup_rect(client, rect);
+}
+
static int mt9m111_s_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
{
- struct v4l2_rect *rect = &a->c;
+ struct v4l2_rect rect = a->c;
struct i2c_client *client = sd->priv;
struct mt9m111 *mt9m111 = to_mt9m111(client);
int ret;
dev_dbg(&client->dev, "%s left=%d, top=%d, width=%d, height=%d\n",
- __func__, rect->left, rect->top, rect->width,
- rect->height);
+ __func__, rect.left, rect.top, rect.width, rect.height);
- ret = mt9m111_setup_rect(client, rect);
+ ret = mt9m111_make_rect(client, &rect);
if (!ret)
- mt9m111->rect = *rect;
+ mt9m111->rect = rect;
return ret;
}
+static int mt9m111_g_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
+{
+ struct i2c_client *client = sd->priv;
+ struct mt9m111 *mt9m111 = to_mt9m111(client);
+
+ a->c = mt9m111->rect;
+ a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+
+ return 0;
+}
+
+static int mt9m111_cropcap(struct v4l2_subdev *sd, struct v4l2_cropcap *a)
+{
+ a->bounds.left = MT9M111_MIN_DARK_COLS;
+ a->bounds.top = MT9M111_MIN_DARK_ROWS;
+ a->bounds.width = MT9M111_MAX_WIDTH;
+ a->bounds.height = MT9M111_MAX_HEIGHT;
+ a->defrect = a->bounds;
+ a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ a->pixelaspect.numerator = 1;
+ a->pixelaspect.denominator = 1;
+
+ return 0;
+}
+
+static int mt9m111_g_fmt(struct v4l2_subdev *sd, struct v4l2_format *f)
+{
+ struct i2c_client *client = sd->priv;
+ struct mt9m111 *mt9m111 = to_mt9m111(client);
+ struct v4l2_pix_format *pix = &f->fmt.pix;
+
+ pix->width = mt9m111->rect.width;
+ pix->height = mt9m111->rect.height;
+ pix->pixelformat = mt9m111->pixfmt;
+ pix->field = V4L2_FIELD_NONE;
+ pix->colorspace = V4L2_COLORSPACE_SRGB;
+
+ return 0;
+}
+
static int mt9m111_set_pixfmt(struct i2c_client *client, u32 pixfmt)
{
struct mt9m111 *mt9m111 = to_mt9m111(client);
@@ -478,7 +540,7 @@ static int mt9m111_s_fmt(struct v4l2_subdev *sd, struct v4l2_format *f)
__func__, pix->pixelformat, rect.left, rect.top, rect.width,
rect.height);
- ret = mt9m111_setup_rect(client, &rect);
+ ret = mt9m111_make_rect(client, &rect);
if (!ret)
ret = mt9m111_set_pixfmt(client, pix->pixelformat);
if (!ret)
@@ -489,11 +551,27 @@ static int mt9m111_s_fmt(struct v4l2_subdev *sd, struct v4l2_format *f)
static int mt9m111_try_fmt(struct v4l2_subdev *sd, struct v4l2_format *f)
{
struct v4l2_pix_format *pix = &f->fmt.pix;
+ bool bayer = pix->pixelformat == V4L2_PIX_FMT_SBGGR8 ||
+ pix->pixelformat == V4L2_PIX_FMT_SBGGR16;
+
+ /*
+ * With Bayer format enforce even side lengths, but let the user play
+ * with the starting pixel
+ */
if (pix->height > MT9M111_MAX_HEIGHT)
pix->height = MT9M111_MAX_HEIGHT;
+ else if (pix->height < 2)
+ pix->height = 2;
+ else if (bayer)
+ pix->height = ALIGN(pix->height, 2);
+
if (pix->width > MT9M111_MAX_WIDTH)
pix->width = MT9M111_MAX_WIDTH;
+ else if (pix->width < 2)
+ pix->width = 2;
+ else if (bayer)
+ pix->width = ALIGN(pix->width, 2);
return 0;
}
@@ -906,8 +984,11 @@ static struct v4l2_subdev_core_ops mt9m111_subdev_core_ops = {
static struct v4l2_subdev_video_ops mt9m111_subdev_video_ops = {
.s_fmt = mt9m111_s_fmt,
+ .g_fmt = mt9m111_g_fmt,
.try_fmt = mt9m111_try_fmt,
.s_crop = mt9m111_s_crop,
+ .g_crop = mt9m111_g_crop,
+ .cropcap = mt9m111_cropcap,
};
static struct v4l2_subdev_ops mt9m111_subdev_ops = {
@@ -949,16 +1030,13 @@ static int mt9m111_probe(struct i2c_client *client,
/* Second stage probe - when a capture adapter is there */
icd->ops = &mt9m111_ops;
- icd->rect_max.left = MT9M111_MIN_DARK_COLS;
- icd->rect_max.top = MT9M111_MIN_DARK_ROWS;
- icd->rect_max.width = MT9M111_MAX_WIDTH;
- icd->rect_max.height = MT9M111_MAX_HEIGHT;
- icd->rect_current.left = icd->rect_max.left;
- icd->rect_current.top = icd->rect_max.top;
- icd->width_min = MT9M111_MIN_DARK_ROWS;
- icd->height_min = MT9M111_MIN_DARK_COLS;
icd->y_skip_top = 0;
+ mt9m111->rect.left = MT9M111_MIN_DARK_COLS;
+ mt9m111->rect.top = MT9M111_MIN_DARK_ROWS;
+ mt9m111->rect.width = MT9M111_MAX_WIDTH;
+ mt9m111->rect.height = MT9M111_MAX_HEIGHT;
+
ret = mt9m111_video_probe(icd, client);
if (ret) {
icd->ops = NULL;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-04 19:51:15 +0000