diff options
Diffstat (limited to 'drivers/media/platform/rcar-vin')
-rw-r--r-- | drivers/media/platform/rcar-vin/rcar-v4l2.c | 85 |
1 files changed, 48 insertions, 37 deletions
diff --git a/drivers/media/platform/rcar-vin/rcar-v4l2.c b/drivers/media/platform/rcar-vin/rcar-v4l2.c index cc08fcc73ab2..4a77bb4bb7c6 100644 --- a/drivers/media/platform/rcar-vin/rcar-v4l2.c +++ b/drivers/media/platform/rcar-vin/rcar-v4l2.c @@ -87,6 +87,53 @@ static u32 rvin_format_sizeimage(struct v4l2_pix_format *pix) return pix->bytesperline * pix->height; } +static int rvin_format_align(struct rvin_dev *vin, struct v4l2_pix_format *pix) +{ + u32 walign; + + if (!rvin_format_from_pixel(pix->pixelformat) || + (vin->info->model == RCAR_M1 && + pix->pixelformat == V4L2_PIX_FMT_XBGR32)) + pix->pixelformat = RVIN_DEFAULT_FORMAT; + + switch (pix->field) { + case V4L2_FIELD_TOP: + case V4L2_FIELD_BOTTOM: + case V4L2_FIELD_NONE: + case V4L2_FIELD_INTERLACED_TB: + case V4L2_FIELD_INTERLACED_BT: + case V4L2_FIELD_INTERLACED: + break; + case V4L2_FIELD_ALTERNATE: + /* + * Driver does not (yet) support outputting ALTERNATE to a + * userspace. It does support outputting INTERLACED so use + * the VIN hardware to combine the two fields. + */ + pix->field = V4L2_FIELD_INTERLACED; + pix->height *= 2; + break; + default: + pix->field = RVIN_DEFAULT_FIELD; + break; + } + + /* HW limit width to a multiple of 32 (2^5) for NV16 else 2 (2^1) */ + walign = vin->format.pixelformat == V4L2_PIX_FMT_NV16 ? 5 : 1; + + /* Limit to VIN capabilities */ + v4l_bound_align_image(&pix->width, 2, vin->info->max_width, walign, + &pix->height, 4, vin->info->max_height, 2, 0); + + pix->bytesperline = rvin_format_bytesperline(pix); + pix->sizeimage = rvin_format_sizeimage(pix); + + vin_dbg(vin, "Format %ux%u bpl: %u size: %u\n", + pix->width, pix->height, pix->bytesperline, pix->sizeimage); + + return 0; +} + /* ----------------------------------------------------------------------------- * V4L2 */ @@ -186,7 +233,6 @@ static int __rvin_try_format(struct rvin_dev *vin, struct v4l2_pix_format *pix, struct rvin_source_fmt *source) { - u32 walign; int ret; if (!rvin_format_from_pixel(pix->pixelformat) || @@ -199,42 +245,7 @@ static int __rvin_try_format(struct rvin_dev *vin, if (ret) return ret; - switch (pix->field) { - case V4L2_FIELD_TOP: - case V4L2_FIELD_BOTTOM: - case V4L2_FIELD_NONE: - case V4L2_FIELD_INTERLACED_TB: - case V4L2_FIELD_INTERLACED_BT: - case V4L2_FIELD_INTERLACED: - break; - case V4L2_FIELD_ALTERNATE: - /* - * Driver does not (yet) support outputting ALTERNATE to a - * userspace. It does support outputting INTERLACED so use - * the VIN hardware to combine the two fields. - */ - pix->field = V4L2_FIELD_INTERLACED; - pix->height *= 2; - break; - default: - pix->field = RVIN_DEFAULT_FIELD; - break; - } - - /* HW limit width to a multiple of 32 (2^5) for NV16 else 2 (2^1) */ - walign = vin->format.pixelformat == V4L2_PIX_FMT_NV16 ? 5 : 1; - - /* Limit to VIN capabilities */ - v4l_bound_align_image(&pix->width, 2, vin->info->max_width, walign, - &pix->height, 4, vin->info->max_height, 2, 0); - - pix->bytesperline = rvin_format_bytesperline(pix); - pix->sizeimage = rvin_format_sizeimage(pix); - - vin_dbg(vin, "Format %ux%u bpl: %d size: %d\n", - pix->width, pix->height, pix->bytesperline, pix->sizeimage); - - return 0; + return rvin_format_align(vin, pix); } static int rvin_querycap(struct file *file, void *priv, |