diff options
| -rw-r--r-- | drivers/media/video/ov772x.c | 55 |
1 files changed, 35 insertions, 20 deletions
diff --git a/drivers/media/video/ov772x.c b/drivers/media/video/ov772x.c index b3346c934bf3..54b736fcc07a 100644 --- a/drivers/media/video/ov772x.c +++ b/drivers/media/video/ov772x.c @@ -766,6 +766,27 @@ static int ov772x_set_register(struct soc_camera_device *icd, } #endif +static const struct ov772x_win_size* +ov772x_select_win(u32 width, u32 height) +{ + __u32 diff; + const struct ov772x_win_size *win; + + /* default is QVGA */ + diff = abs(width - ov772x_win_qvga.width) + + abs(height - ov772x_win_qvga.height); + win = &ov772x_win_qvga; + + /* VGA */ + if (diff > + abs(width - ov772x_win_vga.width) + + abs(height - ov772x_win_vga.height)) + win = &ov772x_win_vga; + + return win; +} + + static int ov772x_set_fmt(struct soc_camera_device *icd, __u32 pixfmt, struct v4l2_rect *rect) @@ -786,34 +807,28 @@ static int ov772x_set_fmt(struct soc_camera_device *icd, } } + /* + * select win + */ + priv->win = ov772x_select_win(rect->width, rect->height); + return ret; } static int ov772x_try_fmt(struct soc_camera_device *icd, struct v4l2_format *f) { - struct v4l2_pix_format *pix = &f->fmt.pix; - struct ov772x_priv *priv; - - priv = container_of(icd, struct ov772x_priv, icd); - - /* QVGA */ - if (pix->width <= ov772x_win_qvga.width || - pix->height <= ov772x_win_qvga.height) { - priv->win = &ov772x_win_qvga; - pix->width = ov772x_win_qvga.width; - pix->height = ov772x_win_qvga.height; - } + struct v4l2_pix_format *pix = &f->fmt.pix; + const struct ov772x_win_size *win; - /* VGA */ - else if (pix->width <= ov772x_win_vga.width || - pix->height <= ov772x_win_vga.height) { - priv->win = &ov772x_win_vga; - pix->width = ov772x_win_vga.width; - pix->height = ov772x_win_vga.height; - } + /* + * select suitable win + */ + win = ov772x_select_win(pix->width, pix->height); - pix->field = V4L2_FIELD_NONE; + pix->width = win->width; + pix->height = win->height; + pix->field = V4L2_FIELD_NONE; return 0; } |